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| author | Jens Muecke <jens@nons.de> | 2009-12-14 20:58:18 +0000 |
|---|---|---|
| committer | Jens Muecke <jens@nons.de> | 2009-12-14 20:58:18 +0000 |
| commit | 8431a6aa5e8971e93a57923f9804fa9785742643 (patch) | |
| tree | 2a438a45c6592d8db40794326babfdfeee95930c /target/linux/omap35xx/patches-2.6.32/001-DSS2.patch | |
| parent | 03ab02cde787cc4259ad360bbb85ac51f25b41cc (diff) | |
| download | mtk-20170518-8431a6aa5e8971e93a57923f9804fa9785742643.zip mtk-20170518-8431a6aa5e8971e93a57923f9804fa9785742643.tar.gz mtk-20170518-8431a6aa5e8971e93a57923f9804fa9785742643.tar.bz2 | |
Make beagleboard as subtarget from omap35xx
SVN-Revision: 18779
Diffstat (limited to 'target/linux/omap35xx/patches-2.6.32/001-DSS2.patch')
| -rw-r--r-- | target/linux/omap35xx/patches-2.6.32/001-DSS2.patch | 22831 |
1 files changed, 22831 insertions, 0 deletions
diff --git a/target/linux/omap35xx/patches-2.6.32/001-DSS2.patch b/target/linux/omap35xx/patches-2.6.32/001-DSS2.patch new file mode 100644 index 0000000..ca760bc --- /dev/null +++ b/target/linux/omap35xx/patches-2.6.32/001-DSS2.patch @@ -0,0 +1,22831 @@ +diff --git a/Documentation/arm/OMAP/DSS b/Documentation/arm/OMAP/DSS +new file mode 100644 +index 0000000..0af0e9e +--- /dev/null ++++ b/Documentation/arm/OMAP/DSS +@@ -0,0 +1,317 @@ ++OMAP2/3 Display Subsystem ++------------------------- ++ ++This is an almost total rewrite of the OMAP FB driver in drivers/video/omap ++(let's call it DSS1). The main differences between DSS1 and DSS2 are DSI, ++TV-out and multiple display support, but there are lots of small improvements ++also. ++ ++The DSS2 driver (omapdss module) is in arch/arm/plat-omap/dss/, and the FB, ++panel and controller drivers are in drivers/video/omap2/. DSS1 and DSS2 live ++currently side by side, you can choose which one to use. ++ ++Features ++-------- ++ ++Working and tested features include: ++ ++- MIPI DPI (parallel) output ++- MIPI DSI output in command mode ++- MIPI DBI (RFBI) output ++- SDI output ++- TV output ++- All pieces can be compiled as a module or inside kernel ++- Use DISPC to update any of the outputs ++- Use CPU to update RFBI or DSI output ++- OMAP DISPC planes ++- RGB16, RGB24 packed, RGB24 unpacked ++- YUV2, UYVY ++- Scaling ++- Adjusting DSS FCK to find a good pixel clock ++- Use DSI DPLL to create DSS FCK ++ ++Tested boards include: ++- OMAP3 SDP board ++- Beagle board ++- N810 ++ ++omapdss driver ++-------------- ++ ++The DSS driver does not itself have any support for Linux framebuffer, V4L or ++such like the current ones, but it has an internal kernel API that upper level ++drivers can use. ++ ++The DSS driver models OMAP's overlays, overlay managers and displays in a ++flexible way to enable non-common multi-display configuration. In addition to ++modelling the hardware overlays, omapdss supports virtual overlays and overlay ++managers. These can be used when updating a display with CPU or system DMA. ++ ++Panel and controller drivers ++---------------------------- ++ ++The drivers implement panel or controller specific functionality and are not ++usually visible to users except through omapfb driver. They register ++themselves to the DSS driver. ++ ++omapfb driver ++------------- ++ ++The omapfb driver implements arbitrary number of standard linux framebuffers. ++These framebuffers can be routed flexibly to any overlays, thus allowing very ++dynamic display architecture. ++ ++The driver exports some omapfb specific ioctls, which are compatible with the ++ioctls in the old driver. ++ ++The rest of the non standard features are exported via sysfs. Whether the final ++implementation will use sysfs, or ioctls, is still open. ++ ++V4L2 drivers ++------------ ++ ++V4L2 is being implemented in TI. ++ ++From omapdss point of view the V4L2 drivers should be similar to framebuffer ++driver. ++ ++Architecture ++-------------------- ++ ++Some clarification what the different components do: ++ ++ - Framebuffer is a memory area inside OMAP's SRAM/SDRAM that contains the ++ pixel data for the image. Framebuffer has width and height and color ++ depth. ++ - Overlay defines where the pixels are read from and where they go on the ++ screen. The overlay may be smaller than framebuffer, thus displaying only ++ part of the framebuffer. The position of the overlay may be changed if ++ the overlay is smaller than the display. ++ - Overlay manager combines the overlays in to one image and feeds them to ++ display. ++ - Display is the actual physical display device. ++ ++A framebuffer can be connected to multiple overlays to show the same pixel data ++on all of the overlays. Note that in this case the overlay input sizes must be ++the same, but, in case of video overlays, the output size can be different. Any ++framebuffer can be connected to any overlay. ++ ++An overlay can be connected to one overlay manager. Also DISPC overlays can be ++connected only to DISPC overlay managers, and virtual overlays can be only ++connected to virtual overlays. ++ ++An overlay manager can be connected to one display. There are certain ++restrictions which kinds of displays an overlay manager can be connected: ++ ++ - DISPC TV overlay manager can be only connected to TV display. ++ - Virtual overlay managers can only be connected to DBI or DSI displays. ++ - DISPC LCD overlay manager can be connected to all displays, except TV ++ display. ++ ++Sysfs ++----- ++The sysfs interface is mainly used for testing. I don't think sysfs ++interface is the best for this in the final version, but I don't quite know ++what would be the best interfaces for these things. ++ ++The sysfs interface is divided to two parts: DSS and FB. ++ ++/sys/class/graphics/fb? directory: ++mirror 0=off, 1=on ++rotate Rotation 0-3 for 0, 90, 180, 270 degrees ++rotate_type 0 = DMA rotation, 1 = VRFB rotation ++overlays List of overlay numbers to which framebuffer pixels go ++phys_addr Physical address of the framebuffer ++virt_addr Virtual address of the framebuffer ++size Size of the framebuffer ++ ++/sys/devices/platform/omapdss/overlay? directory: ++enabled 0=off, 1=on ++input_size width,height (ie. the framebuffer size) ++manager Destination overlay manager name ++name ++output_size width,height ++position x,y ++screen_width width ++global_alpha global alpha 0-255 0=transparent 255=opaque ++ ++/sys/devices/platform/omapdss/manager? directory: ++display Destination display ++name ++alpha_blending_enabled 0=off, 1=on ++trans_key_enabled 0=off, 1=on ++trans_key_type gfx-destination, video-source ++trans_key_value transparency color key (RGB24) ++default_color default background color (RGB24) ++ ++/sys/devices/platform/omapdss/display? directory: ++ctrl_name Controller name ++mirror 0=off, 1=on ++update_mode 0=off, 1=auto, 2=manual ++enabled 0=off, 1=on ++name ++rotate Rotation 0-3 for 0, 90, 180, 270 degrees ++timings Display timings (pixclock,xres/hfp/hbp/hsw,yres/vfp/vbp/vsw) ++ When writing, two special timings are accepted for tv-out: ++ "pal" and "ntsc" ++panel_name ++tear_elim Tearing elimination 0=off, 1=on ++ ++There are also some debugfs files at <debugfs>/omapdss/ which show information ++about clocks and registers. ++ ++Examples ++-------- ++ ++The following definitions have been made for the examples below: ++ ++ovl0=/sys/devices/platform/omapdss/overlay0 ++ovl1=/sys/devices/platform/omapdss/overlay1 ++ovl2=/sys/devices/platform/omapdss/overlay2 ++ ++mgr0=/sys/devices/platform/omapdss/manager0 ++mgr1=/sys/devices/platform/omapdss/manager1 ++ ++lcd=/sys/devices/platform/omapdss/display0 ++dvi=/sys/devices/platform/omapdss/display1 ++tv=/sys/devices/platform/omapdss/display2 ++ ++fb0=/sys/class/graphics/fb0 ++fb1=/sys/class/graphics/fb1 ++fb2=/sys/class/graphics/fb2 ++ ++Default setup on OMAP3 SDP ++-------------------------- ++ ++Here's the default setup on OMAP3 SDP board. All planes go to LCD. DVI ++and TV-out are not in use. The columns from left to right are: ++framebuffers, overlays, overlay managers, displays. Framebuffers are ++handled by omapfb, and the rest by the DSS. ++ ++FB0 --- GFX -\ DVI ++FB1 --- VID1 --+- LCD ---- LCD ++FB2 --- VID2 -/ TV ----- TV ++ ++Example: Switch from LCD to DVI ++---------------------- ++ ++w=`cat $dvi/timings | cut -d "," -f 2 | cut -d "/" -f 1` ++h=`cat $dvi/timings | cut -d "," -f 3 | cut -d "/" -f 1` ++ ++echo "0" > $lcd/enabled ++echo "" > $mgr0/display ++fbset -fb /dev/fb0 -xres $w -yres $h -vxres $w -vyres $h ++# at this point you have to switch the dvi/lcd dip-switch from the omap board ++echo "dvi" > $mgr0/display ++echo "1" > $dvi/enabled ++ ++After this the configuration looks like: ++ ++FB0 --- GFX -\ -- DVI ++FB1 --- VID1 --+- LCD -/ LCD ++FB2 --- VID2 -/ TV ----- TV ++ ++Example: Clone GFX overlay to LCD and TV ++------------------------------- ++ ++w=`cat $tv/timings | cut -d "," -f 2 | cut -d "/" -f 1` ++h=`cat $tv/timings | cut -d "," -f 3 | cut -d "/" -f 1` ++ ++echo "0" > $ovl0/enabled ++echo "0" > $ovl1/enabled ++ ++echo "" > $fb1/overlays ++echo "0,1" > $fb0/overlays ++ ++echo "$w,$h" > $ovl1/output_size ++echo "tv" > $ovl1/manager ++ ++echo "1" > $ovl0/enabled ++echo "1" > $ovl1/enabled ++ ++echo "1" > $tv/enabled ++ ++After this the configuration looks like (only relevant parts shown): ++ ++FB0 +-- GFX ---- LCD ---- LCD ++ \- VID1 ---- TV ---- TV ++ ++Misc notes ++---------- ++ ++OMAP FB allocates the framebuffer memory using the OMAP VRAM allocator. ++ ++Using DSI DPLL to generate pixel clock it is possible produce the pixel clock ++of 86.5MHz (max possible), and with that you get 1280x1024@57 output from DVI. ++ ++Rotation and mirroring currently only supports RGB565 and RGB8888 modes. VRFB ++does not support mirroring. ++ ++VRFB rotation requires much more memory than non-rotated framebuffer, so you ++probably need to increase your vram setting before using VRFB rotation. Also, ++many applications may not work with VRFB if they do not pay attention to all ++framebuffer parameters. ++ ++Kernel boot arguments ++--------------------- ++ ++vram=<size> ++ - Amount of total VRAM to preallocate. For example, "10M". omapfb ++ allocates memory for framebuffers from VRAM. ++ ++omapfb.mode=<display>:<mode>[,...] ++ - Default video mode for specified displays. For example, ++ "dvi:800x400MR-24@60". See drivers/video/modedb.c. ++ There are also two special modes: "pal" and "ntsc" that ++ can be used to tv out. ++ ++omapfb.vram=<fbnum>:<size>[@<physaddr>][,...] ++ - VRAM allocated for a framebuffer. Normally omapfb allocates vram ++ depending on the display size. With this you can manually allocate ++ more or define the physical address of each framebuffer. For example, ++ "1:4M" to allocate 4M for fb1. ++ ++omapfb.debug=<y|n> ++ - Enable debug printing. You have to have OMAPFB debug support enabled ++ in kernel config. ++ ++omapfb.test=<y|n> ++ - Draw test pattern to framebuffer whenever framebuffer settings change. ++ You need to have OMAPFB debug support enabled in kernel config. ++ ++omapfb.vrfb=<y|n> ++ - Use VRFB rotation for all framebuffers. ++ ++omapfb.rotate=<angle> ++ - Default rotation applied to all framebuffers. ++ 0 - 0 degree rotation ++ 1 - 90 degree rotation ++ 2 - 180 degree rotation ++ 3 - 270 degree rotation ++ ++omapfb.mirror=<y|n> ++ - Default mirror for all framebuffers. Only works with DMA rotation. ++ ++omapdss.def_disp=<display> ++ - Name of default display, to which all overlays will be connected. ++ Common examples are "lcd" or "tv". ++ ++omapdss.debug=<y|n> ++ - Enable debug printing. You have to have DSS debug support enabled in ++ kernel config. ++ ++TODO ++---- ++ ++DSS locking ++ ++Error checking ++- Lots of checks are missing or implemented just as BUG() ++ ++System DMA update for DSI ++- Can be used for RGB16 and RGB24P modes. Probably not for RGB24U (how ++ to skip the empty byte?) ++ ++OMAP1 support ++- Not sure if needed ++ +diff --git a/MAINTAINERS b/MAINTAINERS +index 8824115..3f5d39f 100644 +--- a/MAINTAINERS ++++ b/MAINTAINERS +@@ -3819,6 +3819,23 @@ L: linux-omap@vger.kernel.org + S: Maintained + F: drivers/video/omap/ + ++OMAP DISPLAY SUBSYSTEM SUPPORT (DSS2) ++M: Tomi Valkeinen <tomi.valkeinen@nokia.com> ++L: linux-fbdev-devel@lists.sourceforge.net (moderated for non-subscribers) ++L: linux-omap@vger.kernel.org ++S: Maintained ++F: drivers/video/omap2/dss/ ++F: drivers/video/omap2/vrfb.c ++F: drivers/video/omap2/vram.c ++F: Documentation/arm/OMAP/DSS ++ ++OMAP FRAMEBUFFER SUPPORT (FOR DSS2) ++M: Tomi Valkeinen <tomi.valkeinen@nokia.com> ++L: linux-fbdev-devel@lists.sourceforge.net (moderated for non-subscribers) ++L: linux-omap@vger.kernel.org ++S: Maintained ++F: drivers/video/omap2/omapfb/ ++ + OMAP MMC SUPPORT + M: Jarkko Lavinen <jarkko.lavinen@nokia.com> + L: linux-omap@vger.kernel.org +diff --git a/arch/arm/configs/omap_3430sdp_defconfig b/arch/arm/configs/omap_3430sdp_defconfig +index 8a4a7e2..59e26e4 100644 +--- a/arch/arm/configs/omap_3430sdp_defconfig ++++ b/arch/arm/configs/omap_3430sdp_defconfig +@@ -1336,10 +1336,33 @@ CONFIG_FB_CFB_IMAGEBLIT=y + # + # CONFIG_FB_S1D13XXX is not set + # CONFIG_FB_VIRTUAL is not set +-CONFIG_FB_OMAP=y +-# CONFIG_FB_OMAP_LCDC_EXTERNAL is not set ++# CONFIG_FB_METRONOME is not set ++# CONFIG_FB_MB862XX is not set ++# CONFIG_FB_BROADSHEET is not set ++# CONFIG_FB_OMAP_LCD_VGA is not set + # CONFIG_FB_OMAP_BOOTLOADER_INIT is not set +-CONFIG_FB_OMAP_CONSISTENT_DMA_SIZE=2 ++CONFIG_OMAP2_VRAM=y ++CONFIG_OMAP2_VRFB=y ++CONFIG_OMAP2_DSS=y ++CONFIG_OMAP2_VRAM_SIZE=4 ++CONFIG_OMAP2_DSS_DEBUG_SUPPORT=y ++# CONFIG_OMAP2_DSS_RFBI is not set ++CONFIG_OMAP2_DSS_VENC=y ++# CONFIG_OMAP2_DSS_SDI is not set ++# CONFIG_OMAP2_DSS_DSI is not set ++# CONFIG_OMAP2_DSS_FAKE_VSYNC is not set ++CONFIG_OMAP2_DSS_MIN_FCK_PER_PCK=0 ++CONFIG_FB_OMAP2=y ++CONFIG_FB_OMAP2_DEBUG_SUPPORT=y ++# CONFIG_FB_OMAP2_FORCE_AUTO_UPDATE is not set ++CONFIG_FB_OMAP2_NUM_FBS=3 ++ ++# ++# OMAP2/3 Display Device Drivers ++# ++CONFIG_PANEL_GENERIC=y ++# CONFIG_PANEL_SAMSUNG_LTE430WQ_F0C is not set ++CONFIG_PANEL_SHARP_LS037V7DW01=y + # CONFIG_BACKLIGHT_LCD_SUPPORT is not set + + # +diff --git a/arch/arm/mach-omap1/board-nokia770.c b/arch/arm/mach-omap1/board-nokia770.c +index ed2a48a..6fbde33 100644 +--- a/arch/arm/mach-omap1/board-nokia770.c ++++ b/arch/arm/mach-omap1/board-nokia770.c +@@ -14,6 +14,7 @@ + #include <linux/platform_device.h> + #include <linux/input.h> + #include <linux/clk.h> ++#include <linux/omapfb.h> + + #include <linux/spi/spi.h> + #include <linux/spi/ads7846.h> +@@ -32,7 +33,6 @@ + #include <mach/keypad.h> + #include <mach/common.h> + #include <mach/dsp_common.h> +-#include <mach/omapfb.h> + #include <mach/hwa742.h> + #include <mach/lcd_mipid.h> + #include <mach/mmc.h> +diff --git a/arch/arm/mach-omap2/board-3430sdp.c b/arch/arm/mach-omap2/board-3430sdp.c +index efaf053..60631be 100644 +--- a/arch/arm/mach-omap2/board-3430sdp.c ++++ b/arch/arm/mach-omap2/board-3430sdp.c +@@ -36,6 +36,7 @@ + #include <mach/common.h> + #include <mach/dma.h> + #include <mach/gpmc.h> ++#include <mach/display.h> + + #include <mach/control.h> + #include <mach/keypad.h> +@@ -152,31 +153,152 @@ static struct spi_board_info sdp3430_spi_board_info[] __initdata = { + }, + }; + +-static struct platform_device sdp3430_lcd_device = { +- .name = "sdp2430_lcd", +- .id = -1, ++ ++#define SDP3430_LCD_PANEL_BACKLIGHT_GPIO 8 ++#define SDP3430_LCD_PANEL_ENABLE_GPIO 5 ++ ++static unsigned backlight_gpio; ++static unsigned enable_gpio; ++static int lcd_enabled; ++static int dvi_enabled; ++ ++static void __init sdp3430_display_init(void) ++{ ++ int r; ++ ++ enable_gpio = SDP3430_LCD_PANEL_ENABLE_GPIO; ++ backlight_gpio = SDP3430_LCD_PANEL_BACKLIGHT_GPIO; ++ ++ r = gpio_request(enable_gpio, "LCD reset"); ++ if (r) { ++ printk(KERN_ERR "failed to get LCD reset GPIO\n"); ++ goto err0; ++ } ++ ++ r = gpio_request(backlight_gpio, "LCD Backlight"); ++ if (r) { ++ printk(KERN_ERR "failed to get LCD backlight GPIO\n"); ++ goto err1; ++ } ++ ++ gpio_direction_output(enable_gpio, 0); ++ gpio_direction_output(backlight_gpio, 0); ++ ++ return; ++err1: ++ gpio_free(enable_gpio); ++err0: ++ return; ++} ++ ++static int sdp3430_panel_enable_lcd(struct omap_dss_device *dssdev) ++{ ++ if (dvi_enabled) { ++ printk(KERN_ERR "cannot enable LCD, DVI is enabled\n"); ++ return -EINVAL; ++ } ++ ++ gpio_direction_output(enable_gpio, 1); ++ gpio_direction_output(backlight_gpio, 1); ++ ++ lcd_enabled = 1; ++ ++ return 0; ++} ++ ++static void sdp3430_panel_disable_lcd(struct omap_dss_device *dssdev) ++{ ++ lcd_enabled = 0; ++ ++ gpio_direction_output(enable_gpio, 0); ++ gpio_direction_output(backlight_gpio, 0); ++} ++ ++static int sdp3430_panel_enable_dvi(struct omap_dss_device *dssdev) ++{ ++ if (lcd_enabled) { ++ printk(KERN_ERR "cannot enable DVI, LCD is enabled\n"); ++ return -EINVAL; ++ } ++ ++ dvi_enabled = 1; ++ ++ return 0; ++} ++ ++static void sdp3430_panel_disable_dvi(struct omap_dss_device *dssdev) ++{ ++ dvi_enabled = 0; ++} ++ ++static int sdp3430_panel_enable_tv(struct omap_dss_device *dssdev) ++{ ++ return 0; ++} ++ ++static void sdp3430_panel_disable_tv(struct omap_dss_device *dssdev) ++{ ++} ++ ++ ++static struct omap_dss_device sdp3430_lcd_device = { ++ .name = "lcd", ++ .driver_name = "sharp_ls_panel", ++ .type = OMAP_DISPLAY_TYPE_DPI, ++ .phy.dpi.data_lines = 16, ++ .platform_enable = sdp3430_panel_enable_lcd, ++ .platform_disable = sdp3430_panel_disable_lcd, + }; + +-static struct regulator_consumer_supply sdp3430_vdac_supply = { +- .supply = "vdac", +- .dev = &sdp3430_lcd_device.dev, ++static struct omap_dss_device sdp3430_dvi_device = { ++ .name = "dvi", ++ .driver_name = "generic_panel", ++ .type = OMAP_DISPLAY_TYPE_DPI, ++ .phy.dpi.data_lines = 24, ++ .platform_enable = sdp3430_panel_enable_dvi, ++ .platform_disable = sdp3430_panel_disable_dvi, + }; + +-static struct regulator_consumer_supply sdp3430_vdvi_supply = { +- .supply = "vdvi", +- .dev = &sdp3430_lcd_device.dev, ++static struct omap_dss_device sdp3430_tv_device = { ++ .name = "tv", ++ .driver_name = "venc", ++ .type = OMAP_DISPLAY_TYPE_VENC, ++ .phy.venc.type = OMAP_DSS_VENC_TYPE_SVIDEO, ++ .platform_enable = sdp3430_panel_enable_tv, ++ .platform_disable = sdp3430_panel_disable_tv, + }; + +-static struct platform_device *sdp3430_devices[] __initdata = { ++ ++static struct omap_dss_device *sdp3430_dss_devices[] = { + &sdp3430_lcd_device, ++ &sdp3430_dvi_device, ++ &sdp3430_tv_device, + }; + +-static struct omap_lcd_config sdp3430_lcd_config __initdata = { +- .ctrl_name = "internal", ++static struct omap_dss_board_info sdp3430_dss_data = { ++ .num_devices = ARRAY_SIZE(sdp3430_dss_devices), ++ .devices = sdp3430_dss_devices, ++ .default_device = &sdp3430_lcd_device, ++}; ++ ++static struct platform_device sdp3430_dss_device = { ++ .name = "omapdss", ++ .id = -1, ++ .dev = { ++ .platform_data = &sdp3430_dss_data, ++ }, ++}; ++ ++static struct regulator_consumer_supply sdp3430_vdda_dac_supply = { ++ .supply = "vdda_dac", ++ .dev = &sdp3430_dss_device.dev, ++}; ++ ++static struct platform_device *sdp3430_devices[] __initdata = { ++ &sdp3430_dss_device, + }; + + static struct omap_board_config_kernel sdp3430_config[] __initdata = { +- { OMAP_TAG_LCD, &sdp3430_lcd_config }, + }; + + static void __init omap_3430sdp_init_irq(void) +@@ -392,22 +514,34 @@ static struct regulator_init_data sdp3430_vdac = { + | REGULATOR_CHANGE_STATUS, + }, + .num_consumer_supplies = 1, +- .consumer_supplies = &sdp3430_vdac_supply, ++ .consumer_supplies = &sdp3430_vdda_dac_supply, + }; + + /* VPLL2 for digital video outputs */ ++static struct regulator_consumer_supply sdp3430_vpll2_supplies[] = { ++ { ++ .supply = "vdvi", ++ .dev = &sdp3430_lcd_device.dev, ++ }, ++ { ++ .supply = "vdds_dsi", ++ .dev = &sdp3430_dss_device.dev, ++ } ++}; ++ + static struct regulator_init_data sdp3430_vpll2 = { + .constraints = { + .name = "VDVI", + .min_uV = 1800000, + .max_uV = 1800000, ++ .apply_uV = true, + .valid_modes_mask = REGULATOR_MODE_NORMAL + | REGULATOR_MODE_STANDBY, + .valid_ops_mask = REGULATOR_CHANGE_MODE + | REGULATOR_CHANGE_STATUS, + }, +- .num_consumer_supplies = 1, +- .consumer_supplies = &sdp3430_vdvi_supply, ++ .num_consumer_supplies = ARRAY_SIZE(sdp3430_vpll2_supplies), ++ .consumer_supplies = sdp3430_vpll2_supplies, + }; + + static struct twl4030_platform_data sdp3430_twldata = { +@@ -499,6 +633,7 @@ static void __init omap_3430sdp_init(void) + omap_serial_init(); + usb_musb_init(); + board_smc91x_init(); ++ sdp3430_display_init(); + enable_board_wakeup_source(); + } + +diff --git a/arch/arm/mach-omap2/clock24xx.c b/arch/arm/mach-omap2/clock24xx.c +index e2dbedd..8524067 100644 +--- a/arch/arm/mach-omap2/clock24xx.c ++++ b/arch/arm/mach-omap2/clock24xx.c +@@ -116,10 +116,10 @@ static struct omap_clk omap24xx_clks[] = { + CLK(NULL, "mdm_ick", &mdm_ick, CK_243X), + CLK(NULL, "mdm_osc_ck", &mdm_osc_ck, CK_243X), + /* DSS domain clocks */ +- CLK("omapfb", "ick", &dss_ick, CK_243X | CK_242X), +- CLK("omapfb", "dss1_fck", &dss1_fck, CK_243X | CK_242X), +- CLK("omapfb", "dss2_fck", &dss2_fck, CK_243X | CK_242X), +- CLK("omapfb", "tv_fck", &dss_54m_fck, CK_243X | CK_242X), ++ CLK("omapdss", "ick", &dss_ick, CK_243X | CK_242X), ++ CLK("omapdss", "dss1_fck", &dss1_fck, CK_243X | CK_242X), ++ CLK("omapdss", "dss2_fck", &dss2_fck, CK_243X | CK_242X), ++ CLK("omapdss", "tv_fck", &dss_54m_fck, CK_243X | CK_242X), + /* L3 domain clocks */ + CLK(NULL, "core_l3_ck", &core_l3_ck, CK_243X | CK_242X), + CLK(NULL, "ssi_fck", &ssi_ssr_sst_fck, CK_243X | CK_242X), +diff --git a/arch/arm/mach-omap2/clock34xx.c b/arch/arm/mach-omap2/clock34xx.c +index 489556e..0a7e9ac 100644 +--- a/arch/arm/mach-omap2/clock34xx.c ++++ b/arch/arm/mach-omap2/clock34xx.c +@@ -236,13 +236,13 @@ static struct omap_clk omap34xx_clks[] = { + CLK("omap_rng", "ick", &rng_ick, CK_343X), + CLK(NULL, "sha11_ick", &sha11_ick, CK_343X), + CLK(NULL, "des1_ick", &des1_ick, CK_343X), +- CLK("omapfb", "dss1_fck", &dss1_alwon_fck_3430es1, CK_3430ES1), +- CLK("omapfb", "dss1_fck", &dss1_alwon_fck_3430es2, CK_3430ES2), +- CLK("omapfb", "tv_fck", &dss_tv_fck, CK_343X), +- CLK("omapfb", "video_fck", &dss_96m_fck, CK_343X), +- CLK("omapfb", "dss2_fck", &dss2_alwon_fck, CK_343X), +- CLK("omapfb", "ick", &dss_ick_3430es1, CK_3430ES1), +- CLK("omapfb", "ick", &dss_ick_3430es2, CK_3430ES2), ++ CLK("omapdss", "dss1_fck", &dss1_alwon_fck_3430es1, CK_3430ES1), ++ CLK("omapdss", "dss1_fck", &dss1_alwon_fck_3430es2, CK_3430ES2), ++ CLK("omapdss", "tv_fck", &dss_tv_fck, CK_343X), ++ CLK("omapdss", "video_fck", &dss_96m_fck, CK_343X), ++ CLK("omapdss", "dss2_fck", &dss2_alwon_fck, CK_343X), ++ CLK("omapdss", "ick", &dss_ick_3430es1, CK_3430ES1), ++ CLK("omapdss", "ick", &dss_ick_3430es2, CK_3430ES2), + CLK(NULL, "cam_mclk", &cam_mclk, CK_343X), + CLK(NULL, "cam_ick", &cam_ick, CK_343X), + CLK(NULL, "csi2_96m_fck", &csi2_96m_fck, CK_343X), +diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c +index e3a3bad..adbb905 100644 +--- a/arch/arm/mach-omap2/io.c ++++ b/arch/arm/mach-omap2/io.c +@@ -22,17 +22,18 @@ + #include <linux/init.h> + #include <linux/io.h> + #include <linux/clk.h> ++#include <linux/omapfb.h> + + #include <asm/tlb.h> + + #include <asm/mach/map.h> + + #include <mach/mux.h> +-#include <mach/omapfb.h> + #include <mach/sram.h> + #include <mach/sdrc.h> + #include <mach/gpmc.h> + #include <mach/serial.h> ++#include <mach/vram.h> + + #ifndef CONFIG_ARCH_OMAP4 /* FIXME: Remove this once clkdev is ready */ + #include "clock.h" +@@ -246,6 +247,7 @@ void __init omap2_map_common_io(void) + omap2_check_revision(); + omap_sram_init(); + omapfb_reserve_sdram(); ++ omap_vram_reserve_sdram(); + } + + /* +diff --git a/arch/arm/mach-omap2/sdrc.c b/arch/arm/mach-omap2/sdrc.c +index 9e3bd4f..6a5a2c5 100644 +--- a/arch/arm/mach-omap2/sdrc.c ++++ b/arch/arm/mach-omap2/sdrc.c +@@ -133,3 +133,19 @@ void __init omap2_sdrc_init(struct omap_sdrc_params *sdrc_cs0, + (1 << SDRC_POWER_PAGEPOLICY_SHIFT); + sdrc_write_reg(l, SDRC_POWER); + } ++ ++void omap2_sms_write_rot_control(u32 val, unsigned ctx) ++{ ++ sms_write_reg(val, SMS_ROT_CONTROL(ctx)); ++} ++ ++void omap2_sms_write_rot_size(u32 val, unsigned ctx) ++{ ++ sms_write_reg(val, SMS_ROT_SIZE(ctx)); ++} ++ ++void omap2_sms_write_rot_physical_ba(u32 val, unsigned ctx) ++{ ++ sms_write_reg(val, SMS_ROT_PHYSICAL_BA(ctx)); ++} ++ +diff --git a/arch/arm/plat-omap/fb.c b/arch/arm/plat-omap/fb.c +index 3746222..70fbeae 100644 +--- a/arch/arm/plat-omap/fb.c ++++ b/arch/arm/plat-omap/fb.c +@@ -28,13 +28,13 @@ + #include <linux/platform_device.h> + #include <linux/bootmem.h> + #include <linux/io.h> ++#include <linux/omapfb.h> + + #include <mach/hardware.h> + #include <asm/mach/map.h> + + #include <mach/board.h> + #include <mach/sram.h> +-#include <mach/omapfb.h> + + #if defined(CONFIG_FB_OMAP) || defined(CONFIG_FB_OMAP_MODULE) + +@@ -327,7 +327,33 @@ static inline int omap_init_fb(void) + + arch_initcall(omap_init_fb); + +-#else ++#elif defined(CONFIG_FB_OMAP2) || defined(CONFIG_FB_OMAP2_MODULE) ++ ++static u64 omap_fb_dma_mask = ~(u32)0; ++static struct omapfb_platform_data omapfb_config; ++ ++static struct platform_device omap_fb_device = { ++ .name = "omapfb", ++ .id = -1, ++ .dev = { ++ .dma_mask = &omap_fb_dma_mask, ++ .coherent_dma_mask = ~(u32)0, ++ .platform_data = &omapfb_config, ++ }, ++ .num_resources = 0, ++}; ++ ++void omapfb_set_platform_data(struct omapfb_platform_data *data) ++{ ++ omapfb_config = *data; ++} ++ ++static inline int omap_init_fb(void) ++{ ++ return platform_device_register(&omap_fb_device); ++} ++ ++arch_initcall(omap_init_fb); + + void omapfb_reserve_sdram(void) {} + unsigned long omapfb_reserve_sram(unsigned long sram_pstart, +@@ -339,5 +365,16 @@ unsigned long omapfb_reserve_sram(unsigned long sram_pstart, + return 0; + } + ++#else ++ ++void omapfb_reserve_sdram(void) {} ++unsigned long omapfb_reserve_sram(unsigned long sram_pstart, ++ unsigned long sram_vstart, ++ unsigned long sram_size, ++ unsigned long start_avail, ++ unsigned long size_avail) ++{ ++ return 0; ++} + + #endif +diff --git a/arch/arm/plat-omap/include/mach/display.h b/arch/arm/plat-omap/include/mach/display.h +new file mode 100644 +index 0000000..4c7422e +--- /dev/null ++++ b/arch/arm/plat-omap/include/mach/display.h +@@ -0,0 +1,540 @@ ++/* ++ * linux/include/asm-arm/arch-omap/display.h ++ * ++ * Copyright (C) 2008 Nokia Corporation ++ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com> ++ * ++ * This program is free software; you can redistribute it and/or modify it ++ * under the terms of the GNU General Public License version 2 as published by ++ * the Free Software Foundation. ++ * ++ * This program is distributed in the hope that it will be useful, but WITHOUT ++ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or ++ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for ++ * more details. ++ * ++ * You should have received a copy of the GNU General Public License along with ++ * this program. If not, see <http://www.gnu.org/licenses/>. ++ */ ++ ++#ifndef __ASM_ARCH_OMAP_DISPLAY_H ++#define __ASM_ARCH_OMAP_DISPLAY_H ++ ++#include <linux/list.h> ++#include <linux/kobject.h> ++#include <linux/device.h> ++#include <asm/atomic.h> ++ ++#define DISPC_IRQ_FRAMEDONE (1 << 0) ++#define DISPC_IRQ_VSYNC (1 << 1) ++#define DISPC_IRQ_EVSYNC_EVEN (1 << 2) ++#define DISPC_IRQ_EVSYNC_ODD (1 << 3) ++#define DISPC_IRQ_ACBIAS_COUNT_STAT (1 << 4) ++#define DISPC_IRQ_PROG_LINE_NUM (1 << 5) ++#define DISPC_IRQ_GFX_FIFO_UNDERFLOW (1 << 6) ++#define DISPC_IRQ_GFX_END_WIN (1 << 7) ++#define DISPC_IRQ_PAL_GAMMA_MASK (1 << 8) ++#define DISPC_IRQ_OCP_ERR (1 << 9) ++#define DISPC_IRQ_VID1_FIFO_UNDERFLOW (1 << 10) ++#define DISPC_IRQ_VID1_END_WIN (1 << 11) ++#define DISPC_IRQ_VID2_FIFO_UNDERFLOW (1 << 12) ++#define DISPC_IRQ_VID2_END_WIN (1 << 13) ++#define DISPC_IRQ_SYNC_LOST (1 << 14) ++#define DISPC_IRQ_SYNC_LOST_DIGIT (1 << 15) ++#define DISPC_IRQ_WAKEUP (1 << 16) ++ ++struct omap_dss_device; ++struct omap_overlay_manager; ++ ++enum omap_display_type { ++ OMAP_DISPLAY_TYPE_NONE = 0, ++ OMAP_DISPLAY_TYPE_DPI = 1 << 0, ++ OMAP_DISPLAY_TYPE_DBI = 1 << 1, ++ OMAP_DISPLAY_TYPE_SDI = 1 << 2, ++ OMAP_DISPLAY_TYPE_DSI = 1 << 3, ++ OMAP_DISPLAY_TYPE_VENC = 1 << 4, ++}; ++ ++enum omap_plane { ++ OMAP_DSS_GFX = 0, ++ OMAP_DSS_VIDEO1 = 1, ++ OMAP_DSS_VIDEO2 = 2 ++}; ++ ++enum omap_channel { ++ OMAP_DSS_CHANNEL_LCD = 0, ++ OMAP_DSS_CHANNEL_DIGIT = 1, ++}; ++ ++enum omap_color_mode { ++ OMAP_DSS_COLOR_CLUT1 = 1 << 0, /* BITMAP 1 */ ++ OMAP_DSS_COLOR_CLUT2 = 1 << 1, /* BITMAP 2 */ ++ OMAP_DSS_COLOR_CLUT4 = 1 << 2, /* BITMAP 4 */ ++ OMAP_DSS_COLOR_CLUT8 = 1 << 3, /* BITMAP 8 */ ++ OMAP_DSS_COLOR_RGB12U = 1 << 4, /* RGB12, 16-bit container */ ++ OMAP_DSS_COLOR_ARGB16 = 1 << 5, /* ARGB16 */ ++ OMAP_DSS_COLOR_RGB16 = 1 << 6, /* RGB16 */ ++ OMAP_DSS_COLOR_RGB24U = 1 << 7, /* RGB24, 32-bit container */ ++ OMAP_DSS_COLOR_RGB24P = 1 << 8, /* RGB24, 24-bit container */ ++ OMAP_DSS_COLOR_YUV2 = 1 << 9, /* YUV2 4:2:2 co-sited */ ++ OMAP_DSS_COLOR_UYVY = 1 << 10, /* UYVY 4:2:2 co-sited */ ++ OMAP_DSS_COLOR_ARGB32 = 1 << 11, /* ARGB32 */ ++ OMAP_DSS_COLOR_RGBA32 = 1 << 12, /* RGBA32 */ ++ OMAP_DSS_COLOR_RGBX32 = 1 << 13, /* RGBx32 */ ++ ++ OMAP_DSS_COLOR_GFX_OMAP3 = ++ OMAP_DSS_COLOR_CLUT1 | OMAP_DSS_COLOR_CLUT2 | ++ OMAP_DSS_COLOR_CLUT4 | OMAP_DSS_COLOR_CLUT8 | ++ OMAP_DSS_COLOR_RGB12U | OMAP_DSS_COLOR_ARGB16 | ++ OMAP_DSS_COLOR_RGB16 | OMAP_DSS_COLOR_RGB24U | ++ OMAP_DSS_COLOR_RGB24P | OMAP_DSS_COLOR_ARGB32 | ++ OMAP_DSS_COLOR_RGBA32 | OMAP_DSS_COLOR_RGBX32, ++ ++ OMAP_DSS_COLOR_VID_OMAP3 = ++ OMAP_DSS_COLOR_RGB12U | OMAP_DSS_COLOR_ARGB16 | ++ OMAP_DSS_COLOR_RGB16 | OMAP_DSS_COLOR_RGB24U | ++ OMAP_DSS_COLOR_RGB24P | OMAP_DSS_COLOR_ARGB32 | ++ OMAP_DSS_COLOR_RGBA32 | OMAP_DSS_COLOR_RGBX32 | ++ OMAP_DSS_COLOR_YUV2 | OMAP_DSS_COLOR_UYVY, ++}; ++ ++enum omap_lcd_display_type { ++ OMAP_DSS_LCD_DISPLAY_STN, ++ OMAP_DSS_LCD_DISPLAY_TFT, ++}; ++ ++enum omap_dss_load_mode { ++ OMAP_DSS_LOAD_CLUT_AND_FRAME = 0, ++ OMAP_DSS_LOAD_CLUT_ONLY = 1, ++ OMAP_DSS_LOAD_FRAME_ONLY = 2, ++ OMAP_DSS_LOAD_CLUT_ONCE_FRAME = 3, ++}; ++ ++enum omap_dss_trans_key_type { ++ OMAP_DSS_COLOR_KEY_GFX_DST = 0, ++ OMAP_DSS_COLOR_KEY_VID_SRC = 1, ++}; ++ ++enum omap_rfbi_te_mode { ++ OMAP_DSS_RFBI_TE_MODE_1 = 1, ++ OMAP_DSS_RFBI_TE_MODE_2 = 2, ++}; ++ ++enum omap_panel_config { ++ OMAP_DSS_LCD_IVS = 1<<0, ++ OMAP_DSS_LCD_IHS = 1<<1, ++ OMAP_DSS_LCD_IPC = 1<<2, ++ OMAP_DSS_LCD_IEO = 1<<3, ++ OMAP_DSS_LCD_RF = 1<<4, ++ OMAP_DSS_LCD_ONOFF = 1<<5, ++ ++ OMAP_DSS_LCD_TFT = 1<<20, ++}; ++ ++enum omap_dss_venc_type { ++ OMAP_DSS_VENC_TYPE_COMPOSITE, ++ OMAP_DSS_VENC_TYPE_SVIDEO, ++}; ++ ++enum omap_display_caps { ++ OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE = 1 << 0, ++}; ++ ++enum omap_dss_update_mode { ++ OMAP_DSS_UPDATE_DISABLED = 0, ++ OMAP_DSS_UPDATE_AUTO, ++ OMAP_DSS_UPDATE_MANUAL, ++}; ++ ++enum omap_dss_display_state { ++ OMAP_DSS_DISPLAY_DISABLED = 0, ++ OMAP_DSS_DISPLAY_ACTIVE, ++ OMAP_DSS_DISPLAY_SUSPENDED, ++}; ++ ++/* XXX perhaps this should be removed */ ++enum omap_dss_overlay_managers { ++ OMAP_DSS_OVL_MGR_LCD, ++ OMAP_DSS_OVL_MGR_TV, ++}; ++ ++enum omap_dss_rotation_type { ++ OMAP_DSS_ROT_DMA = 0, ++ OMAP_DSS_ROT_VRFB = 1, ++}; ++ ++enum omap_overlay_caps { ++ OMAP_DSS_OVL_CAP_SCALE = 1 << 0, ++ OMAP_DSS_OVL_CAP_DISPC = 1 << 1, ++}; ++ ++enum omap_overlay_manager_caps { ++ OMAP_DSS_OVL_MGR_CAP_DISPC = 1 << 0, ++}; ++ ++/* RFBI */ ++ ++struct rfbi_timings { ++ int cs_on_time; ++ int cs_off_time; ++ int we_on_time; ++ int we_off_time; ++ int re_on_time; ++ int re_off_time; ++ int we_cycle_time; ++ int re_cycle_time; ++ int cs_pulse_width; ++ int access_time; ++ ++ int clk_div; ++ ++ u32 tim[5]; /* set by rfbi_convert_timings() */ ++ ++ int converted; ++}; ++ ++void omap_rfbi_write_command(const void *buf, u32 len); ++void omap_rfbi_read_data(void *buf, u32 len); ++void omap_rfbi_write_data(const void *buf, u32 len); ++void omap_rfbi_write_pixels(const void __iomem *buf, int scr_width, ++ u16 x, u16 y, ++ u16 w, u16 h); ++int omap_rfbi_enable_te(bool enable, unsigned line); ++int omap_rfbi_setup_te(enum omap_rfbi_te_mode mode, ++ unsigned hs_pulse_time, unsigned vs_pulse_time, ++ int hs_pol_inv, int vs_pol_inv, int extif_div); ++ ++/* DSI */ ++void dsi_bus_lock(void); ++void dsi_bus_unlock(void); ++int dsi_vc_dcs_write(int channel, u8 *data, int len); ++int dsi_vc_dcs_write_nosync(int channel, u8 *data, int len); ++int dsi_vc_dcs_read(int channel, u8 dcs_cmd, u8 *buf, int buflen); ++int dsi_vc_set_max_rx_packet_size(int channel, u16 len); ++int dsi_vc_send_null(int channel); ++int dsi_vc_send_bta_sync(int channel); ++ ++/* Board specific data */ ++struct omap_dss_board_info { ++ int (*get_last_off_on_transaction_id)(struct device *dev); ++ int num_devices; ++ struct omap_dss_device **devices; ++ struct omap_dss_device *default_device; ++}; ++ ++struct omap_video_timings { ++ /* Unit: pixels */ ++ u16 x_res; ++ /* Unit: pixels */ ++ u16 y_res; ++ /* Unit: KHz */ ++ u32 pixel_clock; ++ /* Unit: pixel clocks */ ++ u16 hsw; /* Horizontal synchronization pulse width */ ++ /* Unit: pixel clocks */ ++ u16 hfp; /* Horizontal front porch */ ++ /* Unit: pixel clocks */ ++ u16 hbp; /* Horizontal back porch */ ++ /* Unit: line clocks */ ++ u16 vsw; /* Vertical synchronization pulse width */ ++ /* Unit: line clocks */ ++ u16 vfp; /* Vertical front porch */ ++ /* Unit: line clocks */ ++ u16 vbp; /* Vertical back porch */ ++}; ++ ++#ifdef CONFIG_OMAP2_DSS_VENC ++/* Hardcoded timings for tv modes. Venc only uses these to ++ * identify the mode, and does not actually use the configs ++ * itself. However, the configs should be something that ++ * a normal monitor can also show */ ++const extern struct omap_video_timings omap_dss_pal_timings; ++const extern struct omap_video_timings omap_dss_ntsc_timings; ++#endif ++ ++struct omap_overlay_info { ++ bool enabled; ++ ++ u32 paddr; ++ void __iomem *vaddr; ++ u16 screen_width; ++ u16 width; ++ u16 height; ++ enum omap_color_mode color_mode; ++ u8 rotation; ++ enum omap_dss_rotation_type rotation_type; ++ bool mirror; ++ ++ u16 pos_x; ++ u16 pos_y; ++ u16 out_width; /* if 0, out_width == width */ ++ u16 out_height; /* if 0, out_height == height */ ++ u8 global_alpha; ++}; ++ ++struct omap_overlay { ++ struct kobject kobj; ++ struct list_head list; ++ ++ /* static fields */ ++ const char *name; ++ int id; ++ enum omap_color_mode supported_modes; ++ enum omap_overlay_caps caps; ++ ++ /* dynamic fields */ ++ struct omap_overlay_manager *manager; ++ struct omap_overlay_info info; ++ ++ /* if true, info has been changed, but not applied() yet */ ++ bool info_dirty; ++ ++ int (*set_manager)(struct omap_overlay *ovl, ++ struct omap_overlay_manager *mgr); ++ int (*unset_manager)(struct omap_overlay *ovl); ++ ++ int (*set_overlay_info)(struct omap_overlay *ovl, ++ struct omap_overlay_info *info); ++ void (*get_overlay_info)(struct omap_overlay *ovl, ++ struct omap_overlay_info *info); ++ ++ int (*wait_for_go)(struct omap_overlay *ovl); ++}; ++ ++struct omap_overlay_manager_info { ++ u32 default_color; ++ ++ enum omap_dss_trans_key_type trans_key_type; ++ u32 trans_key; ++ bool trans_enabled; ++ ++ bool alpha_enabled; ++}; ++ ++struct omap_overlay_manager { ++ struct kobject kobj; ++ struct list_head list; ++ ++ /* static fields */ ++ const char *name; ++ int id; ++ enum omap_overlay_manager_caps caps; ++ int num_overlays; ++ struct omap_overlay **overlays; ++ enum omap_display_type supported_displays; ++ ++ /* dynamic fields */ ++ struct omap_dss_device *device; ++ struct omap_overlay_manager_info info; ++ ++ bool device_changed; ++ /* if true, info has been changed but not applied() yet */ ++ bool info_dirty; ++ ++ int (*set_device)(struct omap_overlay_manager *mgr, ++ struct omap_dss_device *dssdev); ++ int (*unset_device)(struct omap_overlay_manager *mgr); ++ ++ int (*set_manager_info)(struct omap_overlay_manager *mgr, ++ struct omap_overlay_manager_info *info); ++ void (*get_manager_info)(struct omap_overlay_manager *mgr, ++ struct omap_overlay_manager_info *info); ++ ++ int (*apply)(struct omap_overlay_manager *mgr); ++ int (*wait_for_go)(struct omap_overlay_manager *mgr); ++}; ++ ++struct omap_dss_device { ++ struct device dev; ++ ++ enum omap_display_type type; ++ ++ union { ++ struct { ++ u8 data_lines; ++ } dpi; ++ ++ struct { ++ u8 channel; ++ u8 data_lines; ++ } rfbi; ++ ++ struct { ++ u8 datapairs; ++ } sdi; ++ ++ struct { ++ u8 clk_lane; ++ u8 clk_pol; ++ u8 data1_lane; ++ u8 data1_pol; ++ u8 data2_lane; ++ u8 data2_pol; ++ unsigned long lp_clk_hz; ++ unsigned long ddr_clk_hz; ++ ++ bool ext_te; ++ u8 ext_te_gpio; ++ } dsi; ++ ++ struct { ++ enum omap_dss_venc_type type; ++ bool invert_polarity; ++ } venc; ++ } phy; ++ ++ struct { ++ struct omap_video_timings timings; ++ ++ int acbi; /* ac-bias pin transitions per interrupt */ ++ /* Unit: line clocks */ ++ int acb; /* ac-bias pin frequency */ ++ ++ enum omap_panel_config config; ++ ++ u8 recommended_bpp; ++ ++ struct omap_dss_device *ctrl; ++ } panel; ++ ++ struct { ++ u8 pixel_size; ++ struct rfbi_timings rfbi_timings; ++ struct omap_dss_device *panel; ++ } ctrl; ++ ++ int reset_gpio; ++ ++ int max_backlight_level; ++ ++ const char *name; ++ ++ /* used to match device to driver */ ++ const char *driver_name; ++ ++ void *data; ++ ++ struct omap_dss_driver *driver; ++ ++ /* helper variable for driver suspend/resume */ ++ bool activate_after_resume; ++ ++ enum omap_display_caps caps; ++ ++ struct omap_overlay_manager *manager; ++ ++ enum omap_dss_display_state state; ++ ++ int (*enable)(struct omap_dss_device *dssdev); ++ void (*disable)(struct omap_dss_device *dssdev); ++ ++ int (*suspend)(struct omap_dss_device *dssdev); ++ int (*resume)(struct omap_dss_device *dssdev); ++ ++ void (*get_resolution)(struct omap_dss_device *dssdev, ++ u16 *xres, u16 *yres); ++ int (*get_recommended_bpp)(struct omap_dss_device *dssdev); ++ ++ int (*check_timings)(struct omap_dss_device *dssdev, ++ struct omap_video_timings *timings); ++ void (*set_timings)(struct omap_dss_device *dssdev, ++ struct omap_video_timings *timings); ++ void (*get_timings)(struct omap_dss_device *dssdev, ++ struct omap_video_timings *timings); ++ int (*update)(struct omap_dss_device *dssdev, ++ u16 x, u16 y, u16 w, u16 h); ++ int (*sync)(struct omap_dss_device *dssdev); ++ int (*wait_vsync)(struct omap_dss_device *dssdev); ++ ++ int (*set_update_mode)(struct omap_dss_device *dssdev, ++ enum omap_dss_update_mode); ++ enum omap_dss_update_mode (*get_update_mode) ++ (struct omap_dss_device *dssdev); ++ ++ int (*enable_te)(struct omap_dss_device *dssdev, bool enable); ++ int (*get_te)(struct omap_dss_device *dssdev); ++ ++ u8 (*get_rotate)(struct omap_dss_device *dssdev); ++ int (*set_rotate)(struct omap_dss_device *dssdev, u8 rotate); ++ ++ bool (*get_mirror)(struct omap_dss_device *dssdev); ++ int (*set_mirror)(struct omap_dss_device *dssdev, bool enable); ++ ++ int (*run_test)(struct omap_dss_device *dssdev, int test); ++ int (*memory_read)(struct omap_dss_device *dssdev, ++ void *buf, size_t size, ++ u16 x, u16 y, u16 w, u16 h); ++ ++ int (*set_wss)(struct omap_dss_device *dssdev, u32 wss); ++ u32 (*get_wss)(struct omap_dss_device *dssdev); ++ ++ /* platform specific */ ++ int (*platform_enable)(struct omap_dss_device *dssdev); ++ void (*platform_disable)(struct omap_dss_device *dssdev); ++ int (*set_backlight)(struct omap_dss_device *dssdev, int level); ++ int (*get_backlight)(struct omap_dss_device *dssdev); ++}; ++ ++struct omap_dss_driver { ++ struct device_driver driver; ++ ++ int (*probe)(struct omap_dss_device *); ++ void (*remove)(struct omap_dss_device *); ++ ++ int (*enable)(struct omap_dss_device *display); ++ void (*disable)(struct omap_dss_device *display); ++ int (*suspend)(struct omap_dss_device *display); ++ int (*resume)(struct omap_dss_device *display); ++ int (*run_test)(struct omap_dss_device *display, int test); ++ ++ void (*setup_update)(struct omap_dss_device *dssdev, ++ u16 x, u16 y, u16 w, u16 h); ++ ++ int (*enable_te)(struct omap_dss_device *dssdev, bool enable); ++ int (*wait_for_te)(struct omap_dss_device *dssdev); ++ ++ u8 (*get_rotate)(struct omap_dss_device *dssdev); ++ int (*set_rotate)(struct omap_dss_device *dssdev, u8 rotate); ++ ++ bool (*get_mirror)(struct omap_dss_device *dssdev); ++ int (*set_mirror)(struct omap_dss_device *dssdev, bool enable); ++ ++ int (*memory_read)(struct omap_dss_device *dssdev, ++ void *buf, size_t size, ++ u16 x, u16 y, u16 w, u16 h); ++}; ++ ++int omap_dss_register_driver(struct omap_dss_driver *); ++void omap_dss_unregister_driver(struct omap_dss_driver *); ++ ++int omap_dss_register_device(struct omap_dss_device *); ++void omap_dss_unregister_device(struct omap_dss_device *); ++ ++void omap_dss_get_device(struct omap_dss_device *dssdev); ++void omap_dss_put_device(struct omap_dss_device *dssdev); ++#define for_each_dss_dev(d) while ((d = omap_dss_get_next_device(d)) != NULL) ++struct omap_dss_device *omap_dss_get_next_device(struct omap_dss_device *from); ++struct omap_dss_device *omap_dss_find_device(void *data, ++ int (*match)(struct omap_dss_device *dssdev, void *data)); ++ ++int omap_dss_start_device(struct omap_dss_device *dssdev); ++void omap_dss_stop_device(struct omap_dss_device *dssdev); ++ ++int omap_dss_get_num_overlay_managers(void); ++struct omap_overlay_manager *omap_dss_get_overlay_manager(int num); ++ ++int omap_dss_get_num_overlays(void); ++struct omap_overlay *omap_dss_get_overlay(int num); ++ ++typedef void (*omap_dispc_isr_t) (void *arg, u32 mask); ++int omap_dispc_register_isr(omap_dispc_isr_t isr, void *arg, u32 mask); ++int omap_dispc_unregister_isr(omap_dispc_isr_t isr, void *arg, u32 mask); ++ ++int omap_dispc_wait_for_irq_timeout(u32 irqmask, unsigned long timeout); ++int omap_dispc_wait_for_irq_interruptible_timeout(u32 irqmask, ++ unsigned long timeout); ++ ++#define to_dss_driver(x) container_of((x), struct omap_dss_driver, driver) ++#define to_dss_device(x) container_of((x), struct omap_dss_device, dev) ++ ++#endif +diff --git a/arch/arm/plat-omap/include/mach/omapfb.h b/arch/arm/plat-omap/include/mach/omapfb.h +deleted file mode 100644 +index b226bdf..0000000 +--- a/arch/arm/plat-omap/include/mach/omapfb.h ++++ /dev/null +@@ -1,398 +0,0 @@ +-/* +- * File: arch/arm/plat-omap/include/mach/omapfb.h +- * +- * Framebuffer driver for TI OMAP boards +- * +- * Copyright (C) 2004 Nokia Corporation +- * Author: Imre Deak <imre.deak@nokia.com> +- * +- * This program is free software; you can redistribute it and/or modify it +- * under the terms of the GNU General Public License as published by the +- * Free Software Foundation; either version 2 of the License, or (at your +- * option) any later version. +- * +- * This program is distributed in the hope that it will be useful, but +- * WITHOUT ANY WARRANTY; without even the implied warranty of +- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +- * General Public License for more details. +- * +- * You should have received a copy of the GNU General Public License along +- * with this program; if not, write to the Free Software Foundation, Inc., +- * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +- */ +- +-#ifndef __OMAPFB_H +-#define __OMAPFB_H +- +-#include <asm/ioctl.h> +-#include <asm/types.h> +- +-/* IOCTL commands. */ +- +-#define OMAP_IOW(num, dtype) _IOW('O', num, dtype) +-#define OMAP_IOR(num, dtype) _IOR('O', num, dtype) +-#define OMAP_IOWR(num, dtype) _IOWR('O', num, dtype) +-#define OMAP_IO(num) _IO('O', num) +- +-#define OMAPFB_MIRROR OMAP_IOW(31, int) +-#define OMAPFB_SYNC_GFX OMAP_IO(37) +-#define OMAPFB_VSYNC OMAP_IO(38) +-#define OMAPFB_SET_UPDATE_MODE OMAP_IOW(40, int) +-#define OMAPFB_GET_CAPS OMAP_IOR(42, struct omapfb_caps) +-#define OMAPFB_GET_UPDATE_MODE OMAP_IOW(43, int) +-#define OMAPFB_LCD_TEST OMAP_IOW(45, int) +-#define OMAPFB_CTRL_TEST OMAP_IOW(46, int) +-#define OMAPFB_UPDATE_WINDOW_OLD OMAP_IOW(47, struct omapfb_update_window_old) +-#define OMAPFB_SET_COLOR_KEY OMAP_IOW(50, struct omapfb_color_key) +-#define OMAPFB_GET_COLOR_KEY OMAP_IOW(51, struct omapfb_color_key) +-#define OMAPFB_SETUP_PLANE OMAP_IOW(52, struct omapfb_plane_info) +-#define OMAPFB_QUERY_PLANE OMAP_IOW(53, struct omapfb_plane_info) +-#define OMAPFB_UPDATE_WINDOW OMAP_IOW(54, struct omapfb_update_window) +-#define OMAPFB_SETUP_MEM OMAP_IOW(55, struct omapfb_mem_info) +-#define OMAPFB_QUERY_MEM OMAP_IOW(56, struct omapfb_mem_info) +- +-#define OMAPFB_CAPS_GENERIC_MASK 0x00000fff +-#define OMAPFB_CAPS_LCDC_MASK 0x00fff000 +-#define OMAPFB_CAPS_PANEL_MASK 0xff000000 +- +-#define OMAPFB_CAPS_MANUAL_UPDATE 0x00001000 +-#define OMAPFB_CAPS_TEARSYNC 0x00002000 +-#define OMAPFB_CAPS_PLANE_RELOCATE_MEM 0x00004000 +-#define OMAPFB_CAPS_PLANE_SCALE 0x00008000 +-#define OMAPFB_CAPS_WINDOW_PIXEL_DOUBLE 0x00010000 +-#define OMAPFB_CAPS_WINDOW_SCALE 0x00020000 +-#define OMAPFB_CAPS_WINDOW_OVERLAY 0x00040000 +-#define OMAPFB_CAPS_WINDOW_ROTATE 0x00080000 +-#define OMAPFB_CAPS_SET_BACKLIGHT 0x01000000 +- +-/* Values from DSP must map to lower 16-bits */ +-#define OMAPFB_FORMAT_MASK 0x00ff +-#define OMAPFB_FORMAT_FLAG_DOUBLE 0x0100 +-#define OMAPFB_FORMAT_FLAG_TEARSYNC 0x0200 +-#define OMAPFB_FORMAT_FLAG_FORCE_VSYNC 0x0400 +-#define OMAPFB_FORMAT_FLAG_ENABLE_OVERLAY 0x0800 +-#define OMAPFB_FORMAT_FLAG_DISABLE_OVERLAY 0x1000 +- +-#define OMAPFB_EVENT_READY 1 +-#define OMAPFB_EVENT_DISABLED 2 +- +-#define OMAPFB_MEMTYPE_SDRAM 0 +-#define OMAPFB_MEMTYPE_SRAM 1 +-#define OMAPFB_MEMTYPE_MAX 1 +- +-enum omapfb_color_format { +- OMAPFB_COLOR_RGB565 = 0, +- OMAPFB_COLOR_YUV422, +- OMAPFB_COLOR_YUV420, +- OMAPFB_COLOR_CLUT_8BPP, +- OMAPFB_COLOR_CLUT_4BPP, +- OMAPFB_COLOR_CLUT_2BPP, +- OMAPFB_COLOR_CLUT_1BPP, +- OMAPFB_COLOR_RGB444, +- OMAPFB_COLOR_YUY422, +-}; +- +-struct omapfb_update_window { +- __u32 x, y; +- __u32 width, height; +- __u32 format; +- __u32 out_x, out_y; +- __u32 out_width, out_height; +- __u32 reserved[8]; +-}; +- +-struct omapfb_update_window_old { +- __u32 x, y; +- __u32 width, height; +- __u32 format; +-}; +- +-enum omapfb_plane { +- OMAPFB_PLANE_GFX = 0, +- OMAPFB_PLANE_VID1, +- OMAPFB_PLANE_VID2, +-}; +- +-enum omapfb_channel_out { +- OMAPFB_CHANNEL_OUT_LCD = 0, +- OMAPFB_CHANNEL_OUT_DIGIT, +-}; +- +-struct omapfb_plane_info { +- __u32 pos_x; +- __u32 pos_y; +- __u8 enabled; +- __u8 channel_out; +- __u8 mirror; +- __u8 reserved1; +- __u32 out_width; +- __u32 out_height; +- __u32 reserved2[12]; +-}; +- +-struct omapfb_mem_info { +- __u32 size; +- __u8 type; +- __u8 reserved[3]; +-}; +- +-struct omapfb_caps { +- __u32 ctrl; +- __u32 plane_color; +- __u32 wnd_color; +-}; +- +-enum omapfb_color_key_type { +- OMAPFB_COLOR_KEY_DISABLED = 0, +- OMAPFB_COLOR_KEY_GFX_DST, +- OMAPFB_COLOR_KEY_VID_SRC, +-}; +- +-struct omapfb_color_key { +- __u8 channel_out; +- __u32 background; +- __u32 trans_key; +- __u8 key_type; +-}; +- +-enum omapfb_update_mode { +- OMAPFB_UPDATE_DISABLED = 0, +- OMAPFB_AUTO_UPDATE, +- OMAPFB_MANUAL_UPDATE +-}; +- +-#ifdef __KERNEL__ +- +-#include <linux/completion.h> +-#include <linux/interrupt.h> +-#include <linux/fb.h> +-#include <linux/mutex.h> +- +-#include <mach/board.h> +- +-#define OMAP_LCDC_INV_VSYNC 0x0001 +-#define OMAP_LCDC_INV_HSYNC 0x0002 +-#define OMAP_LCDC_INV_PIX_CLOCK 0x0004 +-#define OMAP_LCDC_INV_OUTPUT_EN 0x0008 +-#define OMAP_LCDC_HSVS_RISING_EDGE 0x0010 +-#define OMAP_LCDC_HSVS_OPPOSITE 0x0020 +- +-#define OMAP_LCDC_SIGNAL_MASK 0x003f +- +-#define OMAP_LCDC_PANEL_TFT 0x0100 +- +-#define OMAPFB_PLANE_XRES_MIN 8 +-#define OMAPFB_PLANE_YRES_MIN 8 +- +-#ifdef CONFIG_ARCH_OMAP1 +-#define OMAPFB_PLANE_NUM 1 +-#else +-#define OMAPFB_PLANE_NUM 3 +-#endif +- +-struct omapfb_device; +- +-struct lcd_panel { +- const char *name; +- int config; /* TFT/STN, signal inversion */ +- int bpp; /* Pixel format in fb mem */ +- int data_lines; /* Lines on LCD HW interface */ +- +- int x_res, y_res; +- int pixel_clock; /* In kHz */ +- int hsw; /* Horizontal synchronization +- pulse width */ +- int hfp; /* Horizontal front porch */ +- int hbp; /* Horizontal back porch */ +- int vsw; /* Vertical synchronization +- pulse width */ +- int vfp; /* Vertical front porch */ +- int vbp; /* Vertical back porch */ +- int acb; /* ac-bias pin frequency */ +- int pcd; /* pixel clock divider. +- Obsolete use pixel_clock instead */ +- +- int (*init) (struct lcd_panel *panel, +- struct omapfb_device *fbdev); +- void (*cleanup) (struct lcd_panel *panel); +- int (*enable) (struct lcd_panel *panel); +- void (*disable) (struct lcd_panel *panel); +- unsigned long (*get_caps) (struct lcd_panel *panel); +- int (*set_bklight_level)(struct lcd_panel *panel, +- unsigned int level); +- unsigned int (*get_bklight_level)(struct lcd_panel *panel); +- unsigned int (*get_bklight_max) (struct lcd_panel *panel); +- int (*run_test) (struct lcd_panel *panel, int test_num); +-}; +- +-struct extif_timings { +- int cs_on_time; +- int cs_off_time; +- int we_on_time; +- int we_off_time; +- int re_on_time; +- int re_off_time; +- int we_cycle_time; +- int re_cycle_time; +- int cs_pulse_width; +- int access_time; +- +- int clk_div; +- +- u32 tim[5]; /* set by extif->convert_timings */ +- +- int converted; +-}; +- +-struct lcd_ctrl_extif { +- int (*init) (struct omapfb_device *fbdev); +- void (*cleanup) (void); +- void (*get_clk_info) (u32 *clk_period, u32 *max_clk_div); +- unsigned long (*get_max_tx_rate)(void); +- int (*convert_timings) (struct extif_timings *timings); +- void (*set_timings) (const struct extif_timings *timings); +- void (*set_bits_per_cycle)(int bpc); +- void (*write_command) (const void *buf, unsigned int len); +- void (*read_data) (void *buf, unsigned int len); +- void (*write_data) (const void *buf, unsigned int len); +- void (*transfer_area) (int width, int height, +- void (callback)(void * data), void *data); +- int (*setup_tearsync) (unsigned pin_cnt, +- unsigned hs_pulse_time, unsigned vs_pulse_time, +- int hs_pol_inv, int vs_pol_inv, int div); +- int (*enable_tearsync) (int enable, unsigned line); +- +- unsigned long max_transmit_size; +-}; +- +-struct omapfb_notifier_block { +- struct notifier_block nb; +- void *data; +- int plane_idx; +-}; +- +-typedef int (*omapfb_notifier_callback_t)(struct notifier_block *, +- unsigned long event, +- void *fbi); +- +-struct omapfb_mem_region { +- u32 paddr; +- void __iomem *vaddr; +- unsigned long size; +- u8 type; /* OMAPFB_PLANE_MEM_* */ +- unsigned alloc:1; /* allocated by the driver */ +- unsigned map:1; /* kernel mapped by the driver */ +-}; +- +-struct omapfb_mem_desc { +- int region_cnt; +- struct omapfb_mem_region region[OMAPFB_PLANE_NUM]; +-}; +- +-struct lcd_ctrl { +- const char *name; +- void *data; +- +- int (*init) (struct omapfb_device *fbdev, +- int ext_mode, +- struct omapfb_mem_desc *req_md); +- void (*cleanup) (void); +- void (*bind_client) (struct omapfb_notifier_block *nb); +- void (*get_caps) (int plane, struct omapfb_caps *caps); +- int (*set_update_mode)(enum omapfb_update_mode mode); +- enum omapfb_update_mode (*get_update_mode)(void); +- int (*setup_plane) (int plane, int channel_out, +- unsigned long offset, +- int screen_width, +- int pos_x, int pos_y, int width, +- int height, int color_mode); +- int (*set_rotate) (int angle); +- int (*setup_mem) (int plane, size_t size, +- int mem_type, unsigned long *paddr); +- int (*mmap) (struct fb_info *info, +- struct vm_area_struct *vma); +- int (*set_scale) (int plane, +- int orig_width, int orig_height, +- int out_width, int out_height); +- int (*enable_plane) (int plane, int enable); +- int (*update_window) (struct fb_info *fbi, +- struct omapfb_update_window *win, +- void (*callback)(void *), +- void *callback_data); +- void (*sync) (void); +- void (*suspend) (void); +- void (*resume) (void); +- int (*run_test) (int test_num); +- int (*setcolreg) (u_int regno, u16 red, u16 green, +- u16 blue, u16 transp, +- int update_hw_mem); +- int (*set_color_key) (struct omapfb_color_key *ck); +- int (*get_color_key) (struct omapfb_color_key *ck); +-}; +- +-enum omapfb_state { +- OMAPFB_DISABLED = 0, +- OMAPFB_SUSPENDED= 99, +- OMAPFB_ACTIVE = 100 +-}; +- +-struct omapfb_plane_struct { +- int idx; +- struct omapfb_plane_info info; +- enum omapfb_color_format color_mode; +- struct omapfb_device *fbdev; +-}; +- +-struct omapfb_device { +- int state; +- int ext_lcdc; /* Using external +- LCD controller */ +- struct mutex rqueue_mutex; +- +- int palette_size; +- u32 pseudo_palette[17]; +- +- struct lcd_panel *panel; /* LCD panel */ +- const struct lcd_ctrl *ctrl; /* LCD controller */ +- const struct lcd_ctrl *int_ctrl; /* internal LCD ctrl */ +- struct lcd_ctrl_extif *ext_if; /* LCD ctrl external +- interface */ +- struct device *dev; +- struct fb_var_screeninfo new_var; /* for mode changes */ +- +- struct omapfb_mem_desc mem_desc; +- struct fb_info *fb_info[OMAPFB_PLANE_NUM]; +-}; +- +-struct omapfb_platform_data { +- struct omap_lcd_config lcd; +- struct omapfb_mem_desc mem_desc; +- void *ctrl_platform_data; +-}; +- +-#ifdef CONFIG_ARCH_OMAP1 +-extern struct lcd_ctrl omap1_lcd_ctrl; +-#else +-extern struct lcd_ctrl omap2_disp_ctrl; +-#endif +- +-extern void omapfb_reserve_sdram(void); +-extern void omapfb_register_panel(struct lcd_panel *panel); +-extern void omapfb_write_first_pixel(struct omapfb_device *fbdev, u16 pixval); +-extern void omapfb_notify_clients(struct omapfb_device *fbdev, +- unsigned long event); +-extern int omapfb_register_client(struct omapfb_notifier_block *nb, +- omapfb_notifier_callback_t callback, +- void *callback_data); +-extern int omapfb_unregister_client(struct omapfb_notifier_block *nb); +-extern int omapfb_update_window_async(struct fb_info *fbi, +- struct omapfb_update_window *win, +- void (*callback)(void *), +- void *callback_data); +- +-/* in arch/arm/plat-omap/fb.c */ +-extern void omapfb_set_ctrl_platform_data(void *pdata); +- +-#endif /* __KERNEL__ */ +- +-#endif /* __OMAPFB_H */ +diff --git a/arch/arm/plat-omap/include/mach/sdrc.h b/arch/arm/plat-omap/include/mach/sdrc.h +index 1c09c78..3b157ce 100644 +--- a/arch/arm/plat-omap/include/mach/sdrc.h ++++ b/arch/arm/plat-omap/include/mach/sdrc.h +@@ -88,7 +88,10 @@ + + /* SMS register offsets - read/write with sms_{read,write}_reg() */ + +-#define SMS_SYSCONFIG 0x010 ++#define SMS_SYSCONFIG 0x010 ++#define SMS_ROT_CONTROL(context) (0x180 + 0x10 * context) ++#define SMS_ROT_SIZE(context) (0x184 + 0x10 * context) ++#define SMS_ROT_PHYSICAL_BA(context) (0x188 + 0x10 * context) + /* REVISIT: fill in other SMS registers here */ + + +@@ -121,6 +124,10 @@ int omap2_sdrc_get_params(unsigned long r, + struct omap_sdrc_params **sdrc_cs0, + struct omap_sdrc_params **sdrc_cs1); + ++void omap2_sms_write_rot_control(u32 val, unsigned ctx); ++void omap2_sms_write_rot_size(u32 val, unsigned ctx); ++void omap2_sms_write_rot_physical_ba(u32 val, unsigned ctx); ++ + #ifdef CONFIG_ARCH_OMAP2 + + struct memory_timings { +diff --git a/arch/arm/plat-omap/include/mach/vram.h b/arch/arm/plat-omap/include/mach/vram.h +new file mode 100644 +index 0000000..fe72f81 +--- /dev/null ++++ b/arch/arm/plat-omap/include/mach/vram.h +@@ -0,0 +1,63 @@ ++/* ++ * VRAM manager for OMAP ++ * ++ * Copyright (C) 2009 Nokia Corporation ++ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com> ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 as ++ * published by the Free Software Foundation. ++ * ++ * This program is distributed in the hope that it will be useful, but ++ * WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU ++ * General Public License for more details. ++ * ++ * You should have received a copy of the GNU General Public License along ++ * with this program; if not, write to the Free Software Foundation, Inc., ++ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. ++ */ ++ ++#ifndef __OMAP_VRAM_H__ ++#define __OMAP_VRAM_H__ ++ ++#include <linux/autoconf.h> ++#include <linux/types.h> ++ ++#define OMAP_VRAM_MEMTYPE_SDRAM 0 ++#define OMAP_VRAM_MEMTYPE_SRAM 1 ++#define OMAP_VRAM_MEMTYPE_MAX 1 ++ ++extern int omap_vram_add_region(unsigned long paddr, size_t size); ++extern int omap_vram_free(unsigned long paddr, size_t size); ++extern int omap_vram_alloc(int mtype, size_t size, unsigned long *paddr); ++extern int omap_vram_reserve(unsigned long paddr, size_t size); ++extern void omap_vram_get_info(unsigned long *vram, unsigned long *free_vram, ++ unsigned long *largest_free_block); ++ ++#ifdef CONFIG_OMAP2_VRAM ++extern void omap_vram_set_sdram_vram(u32 size, u32 start); ++extern void omap_vram_set_sram_vram(u32 size, u32 start); ++ ++extern void omap_vram_reserve_sdram(void); ++extern unsigned long omap_vram_reserve_sram(unsigned long sram_pstart, ++ unsigned long sram_vstart, ++ unsigned long sram_size, ++ unsigned long pstart_avail, ++ unsigned long size_avail); ++#else ++static inline void omap_vram_set_sdram_vram(u32 size, u32 start) { } ++static inline void omap_vram_set_sram_vram(u32 size, u32 start) { } ++ ++static inline void omap_vram_reserve_sdram(void) { } ++static inline unsigned long omap_vram_reserve_sram(unsigned long sram_pstart, ++ unsigned long sram_vstart, ++ unsigned long sram_size, ++ unsigned long pstart_avail, ++ unsigned long size_avail) ++{ ++ return 0; ++} ++#endif ++ ++#endif +diff --git a/arch/arm/plat-omap/include/mach/vrfb.h b/arch/arm/plat-omap/include/mach/vrfb.h +new file mode 100644 +index 0000000..8790612 +--- /dev/null ++++ b/arch/arm/plat-omap/include/mach/vrfb.h +@@ -0,0 +1,46 @@ ++/* ++ * VRFB Rotation Engine ++ * ++ * Copyright (C) 2009 Nokia Corporation ++ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com> ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 as ++ * published by the Free Software Foundation. ++ * ++ * This program is distributed in the hope that it will be useful, but ++ * WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU ++ * General Public License for more details. ++ * ++ * You should have received a copy of the GNU General Public License along ++ * with this program; if not, write to the Free Software Foundation, Inc., ++ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. ++ */ ++ ++#ifndef __OMAP_VRFB_H__ ++#define __OMAP_VRFB_H__ ++ ++#define OMAP_VRFB_LINE_LEN 2048 ++ ++struct vrfb { ++ u8 context; ++ void __iomem *vaddr[4]; ++ unsigned long paddr[4]; ++ u16 xoffset; ++ u16 yoffset; ++ u8 bytespp; ++}; ++ ++extern int omap_vrfb_request_ctx(struct vrfb *vrfb); ++extern void omap_vrfb_release_ctx(struct vrfb *vrfb); ++extern void omap_vrfb_suspend_ctx(struct vrfb *vrfb); ++extern void omap_vrfb_resume_ctx(struct vrfb *vrfb); ++extern void omap_vrfb_adjust_size(u16 *width, u16 *height, ++ u8 bytespp); ++extern void omap_vrfb_setup(struct vrfb *vrfb, unsigned long paddr, ++ u16 width, u16 height, ++ unsigned bytespp, bool yuv_mode); ++extern void omap_vrfb_restore_context(void); ++ ++#endif /* __VRFB_H */ +diff --git a/arch/arm/plat-omap/sram.c b/arch/arm/plat-omap/sram.c +index 75d1f26..aa9fb63 100644 +--- a/arch/arm/plat-omap/sram.c ++++ b/arch/arm/plat-omap/sram.c +@@ -28,6 +28,7 @@ + #include <mach/sram.h> + #include <mach/board.h> + #include <mach/cpu.h> ++#include <mach/vram.h> + + #include <mach/control.h> + +@@ -185,6 +186,13 @@ void __init omap_detect_sram(void) + omap_sram_start + SRAM_BOOTLOADER_SZ, + omap_sram_size - SRAM_BOOTLOADER_SZ); + omap_sram_size -= reserved; ++ ++ reserved = omap_vram_reserve_sram(omap_sram_start, omap_sram_base, ++ omap_sram_size, ++ omap_sram_start + SRAM_BOOTLOADER_SZ, ++ omap_sram_size - SRAM_BOOTLOADER_SZ); ++ omap_sram_size -= reserved; ++ + omap_sram_ceil = omap_sram_base + omap_sram_size; + } + +diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig +index 9bbb285..af0448f 100644 +--- a/drivers/video/Kconfig ++++ b/drivers/video/Kconfig +@@ -2161,6 +2161,7 @@ config FB_BROADSHEET + a bridge adapter. + + source "drivers/video/omap/Kconfig" ++source "drivers/video/omap2/Kconfig" + + source "drivers/video/backlight/Kconfig" + source "drivers/video/display/Kconfig" +diff --git a/drivers/video/Makefile b/drivers/video/Makefile +index 80232e1..0f8da33 100644 +--- a/drivers/video/Makefile ++++ b/drivers/video/Makefile +@@ -124,6 +124,7 @@ obj-$(CONFIG_FB_SM501) += sm501fb.o + obj-$(CONFIG_FB_XILINX) += xilinxfb.o + obj-$(CONFIG_FB_SH_MOBILE_LCDC) += sh_mobile_lcdcfb.o + obj-$(CONFIG_FB_OMAP) += omap/ ++obj-y += omap2/ + obj-$(CONFIG_XEN_FBDEV_FRONTEND) += xen-fbfront.o + obj-$(CONFIG_FB_CARMINE) += carminefb.o + obj-$(CONFIG_FB_MB862XX) += mb862xx/ +diff --git a/drivers/video/omap/Kconfig b/drivers/video/omap/Kconfig +index 551e3e9..455c605 100644 +--- a/drivers/video/omap/Kconfig ++++ b/drivers/video/omap/Kconfig +@@ -1,6 +1,7 @@ + config FB_OMAP + tristate "OMAP frame buffer support (EXPERIMENTAL)" +- depends on FB && ARCH_OMAP ++ depends on FB && ARCH_OMAP && (OMAP2_DSS = "n") ++ + select FB_CFB_FILLRECT + select FB_CFB_COPYAREA + select FB_CFB_IMAGEBLIT +@@ -72,7 +73,7 @@ config FB_OMAP_LCD_MIPID + + config FB_OMAP_BOOTLOADER_INIT + bool "Check bootloader initialization" +- depends on FB_OMAP ++ depends on FB_OMAP || FB_OMAP2 + help + Say Y here if you want to enable checking if the bootloader has + already initialized the display controller. In this case the +diff --git a/drivers/video/omap/blizzard.c b/drivers/video/omap/blizzard.c +index 70dadf9..e0d693e 100644 +--- a/drivers/video/omap/blizzard.c ++++ b/drivers/video/omap/blizzard.c +@@ -27,9 +27,9 @@ + #include <linux/clk.h> + + #include <mach/dma.h> +-#include <mach/omapfb.h> + #include <mach/blizzard.h> + ++#include "omapfb.h" + #include "dispc.h" + + #define MODULE_NAME "blizzard" +diff --git a/drivers/video/omap/dispc.c b/drivers/video/omap/dispc.c +index f16e421..3f828e6 100644 +--- a/drivers/video/omap/dispc.c ++++ b/drivers/video/omap/dispc.c +@@ -24,11 +24,12 @@ + #include <linux/vmalloc.h> + #include <linux/clk.h> + #include <linux/io.h> ++#include <linux/platform_device.h> + + #include <mach/sram.h> +-#include <mach/omapfb.h> + #include <mach/board.h> + ++#include "omapfb.h" + #include "dispc.h" + + #define MODULE_NAME "dispc" +@@ -188,6 +189,11 @@ static struct { + struct omapfb_color_key color_key; + } dispc; + ++static struct platform_device omapdss_device = { ++ .name = "omapdss", ++ .id = -1, ++}; ++ + static void enable_lcd_clocks(int enable); + + static void inline dispc_write_reg(int idx, u32 val) +@@ -907,20 +913,20 @@ static irqreturn_t omap_dispc_irq_handler(int irq, void *dev) + + static int get_dss_clocks(void) + { +- dispc.dss_ick = clk_get(dispc.fbdev->dev, "ick"); ++ dispc.dss_ick = clk_get(&omapdss_device.dev, "ick"); + if (IS_ERR(dispc.dss_ick)) { + dev_err(dispc.fbdev->dev, "can't get ick\n"); + return PTR_ERR(dispc.dss_ick); + } + +- dispc.dss1_fck = clk_get(dispc.fbdev->dev, "dss1_fck"); ++ dispc.dss1_fck = clk_get(&omapdss_device.dev, "dss1_fck"); + if (IS_ERR(dispc.dss1_fck)) { + dev_err(dispc.fbdev->dev, "can't get dss1_fck\n"); + clk_put(dispc.dss_ick); + return PTR_ERR(dispc.dss1_fck); + } + +- dispc.dss_54m_fck = clk_get(dispc.fbdev->dev, "tv_fck"); ++ dispc.dss_54m_fck = clk_get(&omapdss_device.dev, "tv_fck"); + if (IS_ERR(dispc.dss_54m_fck)) { + dev_err(dispc.fbdev->dev, "can't get tv_fck\n"); + clk_put(dispc.dss_ick); +@@ -1371,6 +1377,12 @@ static int omap_dispc_init(struct omapfb_device *fbdev, int ext_mode, + int skip_init = 0; + int i; + ++ r = platform_device_register(&omapdss_device); ++ if (r) { ++ dev_err(fbdev->dev, "can't register omapdss device\n"); ++ return r; ++ } ++ + memset(&dispc, 0, sizeof(dispc)); + + dispc.base = ioremap(DISPC_BASE, SZ_1K); +@@ -1508,6 +1520,7 @@ static void omap_dispc_cleanup(void) + free_irq(INT_24XX_DSS_IRQ, dispc.fbdev); + put_dss_clocks(); + iounmap(dispc.base); ++ platform_device_unregister(&omapdss_device); + } + + const struct lcd_ctrl omap2_int_ctrl = { +diff --git a/drivers/video/omap/hwa742.c b/drivers/video/omap/hwa742.c +index ca51583..b84fb7c 100644 +--- a/drivers/video/omap/hwa742.c ++++ b/drivers/video/omap/hwa742.c +@@ -27,8 +27,8 @@ + #include <linux/clk.h> + + #include <mach/dma.h> +-#include <mach/omapfb.h> + #include <mach/hwa742.h> ++#include "omapfb.h" + + #define HWA742_REV_CODE_REG 0x0 + #define HWA742_CONFIG_REG 0x2 +diff --git a/drivers/video/omap/lcd_2430sdp.c b/drivers/video/omap/lcd_2430sdp.c +index 393712b..7b7690a 100644 +--- a/drivers/video/omap/lcd_2430sdp.c ++++ b/drivers/video/omap/lcd_2430sdp.c +@@ -28,9 +28,10 @@ + #include <linux/i2c/twl4030.h> + + #include <mach/mux.h> +-#include <mach/omapfb.h> + #include <asm/mach-types.h> + ++#include "omapfb.h" ++ + #define SDP2430_LCD_PANEL_BACKLIGHT_GPIO 91 + #define SDP2430_LCD_PANEL_ENABLE_GPIO 154 + #define SDP3430_LCD_PANEL_BACKLIGHT_GPIO 24 +diff --git a/drivers/video/omap/lcd_ams_delta.c b/drivers/video/omap/lcd_ams_delta.c +index 1f74399..1d3fd13 100644 +--- a/drivers/video/omap/lcd_ams_delta.c ++++ b/drivers/video/omap/lcd_ams_delta.c +@@ -27,7 +27,8 @@ + + #include <mach/board-ams-delta.h> + #include <mach/hardware.h> +-#include <mach/omapfb.h> ++ ++#include "omapfb.h" + + #define AMS_DELTA_DEFAULT_CONTRAST 112 + +diff --git a/drivers/video/omap/lcd_apollon.c b/drivers/video/omap/lcd_apollon.c +index 626ae3a..e099ad1 100644 +--- a/drivers/video/omap/lcd_apollon.c ++++ b/drivers/video/omap/lcd_apollon.c +@@ -26,7 +26,8 @@ + + #include <mach/gpio.h> + #include <mach/mux.h> +-#include <mach/omapfb.h> ++ ++#include "omapfb.h" + + /* #define USE_35INCH_LCD 1 */ + +diff --git a/drivers/video/omap/lcd_h3.c b/drivers/video/omap/lcd_h3.c +index 417ae5e..8df6887 100644 +--- a/drivers/video/omap/lcd_h3.c ++++ b/drivers/video/omap/lcd_h3.c +@@ -24,7 +24,7 @@ + #include <linux/i2c/tps65010.h> + + #include <mach/gpio.h> +-#include <mach/omapfb.h> ++#include "omapfb.h" + + #define MODULE_NAME "omapfb-lcd_h3" + +diff --git a/drivers/video/omap/lcd_h4.c b/drivers/video/omap/lcd_h4.c +index 0c398bd..03a06a9 100644 +--- a/drivers/video/omap/lcd_h4.c ++++ b/drivers/video/omap/lcd_h4.c +@@ -22,7 +22,7 @@ + #include <linux/module.h> + #include <linux/platform_device.h> + +-#include <mach/omapfb.h> ++#include "omapfb.h" + + static int h4_panel_init(struct lcd_panel *panel, struct omapfb_device *fbdev) + { +diff --git a/drivers/video/omap/lcd_inn1510.c b/drivers/video/omap/lcd_inn1510.c +index cdbd8bb..18f1422 100644 +--- a/drivers/video/omap/lcd_inn1510.c ++++ b/drivers/video/omap/lcd_inn1510.c +@@ -24,7 +24,7 @@ + #include <linux/io.h> + + #include <mach/fpga.h> +-#include <mach/omapfb.h> ++#include "omapfb.h" + + static int innovator1510_panel_init(struct lcd_panel *panel, + struct omapfb_device *fbdev) +diff --git a/drivers/video/omap/lcd_inn1610.c b/drivers/video/omap/lcd_inn1610.c +index 268f7f8..9fff86f 100644 +--- a/drivers/video/omap/lcd_inn1610.c ++++ b/drivers/video/omap/lcd_inn1610.c +@@ -23,7 +23,7 @@ + #include <linux/platform_device.h> + + #include <mach/gpio.h> +-#include <mach/omapfb.h> ++#include "omapfb.h" + + #define MODULE_NAME "omapfb-lcd_h3" + +diff --git a/drivers/video/omap/lcd_ldp.c b/drivers/video/omap/lcd_ldp.c +index dbfe897..44a43ea 100644 +--- a/drivers/video/omap/lcd_ldp.c ++++ b/drivers/video/omap/lcd_ldp.c +@@ -28,9 +28,10 @@ + + #include <mach/gpio.h> + #include <mach/mux.h> +-#include <mach/omapfb.h> + #include <asm/mach-types.h> + ++#include "omapfb.h" ++ + #define LCD_PANEL_BACKLIGHT_GPIO (15 + OMAP_MAX_GPIO_LINES) + #define LCD_PANEL_ENABLE_GPIO (7 + OMAP_MAX_GPIO_LINES) + +diff --git a/drivers/video/omap/lcd_mipid.c b/drivers/video/omap/lcd_mipid.c +index 918ee89..62e1975 100644 +--- a/drivers/video/omap/lcd_mipid.c ++++ b/drivers/video/omap/lcd_mipid.c +@@ -23,9 +23,10 @@ + #include <linux/workqueue.h> + #include <linux/spi/spi.h> + +-#include <mach/omapfb.h> + #include <mach/lcd_mipid.h> + ++#include "omapfb.h" ++ + #define MIPID_MODULE_NAME "lcd_mipid" + + #define MIPID_CMD_READ_DISP_ID 0x04 +diff --git a/drivers/video/omap/lcd_omap2evm.c b/drivers/video/omap/lcd_omap2evm.c +index 7a2bbe2..c3be87c 100644 +--- a/drivers/video/omap/lcd_omap2evm.c ++++ b/drivers/video/omap/lcd_omap2evm.c +@@ -27,9 +27,10 @@ + #include <linux/i2c/twl4030.h> + + #include <mach/mux.h> +-#include <mach/omapfb.h> + #include <asm/mach-types.h> + ++#include "omapfb.h" ++ + #define LCD_PANEL_ENABLE_GPIO 154 + #define LCD_PANEL_LR 128 + #define LCD_PANEL_UD 129 +diff --git a/drivers/video/omap/lcd_omap3beagle.c b/drivers/video/omap/lcd_omap3beagle.c +index 4011910..0608a25 100644 +--- a/drivers/video/omap/lcd_omap3beagle.c ++++ b/drivers/video/omap/lcd_omap3beagle.c +@@ -26,9 +26,10 @@ + #include <linux/i2c/twl4030.h> + + #include <mach/mux.h> +-#include <mach/omapfb.h> + #include <asm/mach-types.h> + ++#include "omapfb.h" ++ + #define LCD_PANEL_ENABLE_GPIO 170 + + static int omap3beagle_panel_init(struct lcd_panel *panel, +diff --git a/drivers/video/omap/lcd_omap3evm.c b/drivers/video/omap/lcd_omap3evm.c +index b6a4c2c..c204afb 100644 +--- a/drivers/video/omap/lcd_omap3evm.c ++++ b/drivers/video/omap/lcd_omap3evm.c +@@ -26,9 +26,10 @@ + #include <linux/i2c/twl4030.h> + + #include <mach/mux.h> +-#include <mach/omapfb.h> + #include <asm/mach-types.h> + ++#include "omapfb.h" ++ + #define LCD_PANEL_ENABLE_GPIO 153 + #define LCD_PANEL_LR 2 + #define LCD_PANEL_UD 3 +diff --git a/drivers/video/omap/lcd_osk.c b/drivers/video/omap/lcd_osk.c +index b3fa88b..5755b5c 100644 +--- a/drivers/video/omap/lcd_osk.c ++++ b/drivers/video/omap/lcd_osk.c +@@ -25,7 +25,7 @@ + + #include <mach/gpio.h> + #include <mach/mux.h> +-#include <mach/omapfb.h> ++#include "omapfb.h" + + static int osk_panel_init(struct lcd_panel *panel, struct omapfb_device *fbdev) + { +diff --git a/drivers/video/omap/lcd_overo.c b/drivers/video/omap/lcd_overo.c +index 2bc5c92..63ebb1f 100644 +--- a/drivers/video/omap/lcd_overo.c ++++ b/drivers/video/omap/lcd_overo.c +@@ -25,9 +25,10 @@ + + #include <mach/gpio.h> + #include <mach/mux.h> +-#include <mach/omapfb.h> + #include <asm/mach-types.h> + ++#include "omapfb.h" ++ + #define LCD_ENABLE 144 + + static int overo_panel_init(struct lcd_panel *panel, +diff --git a/drivers/video/omap/lcd_palmte.c b/drivers/video/omap/lcd_palmte.c +index 4bf3c79..7e11a75 100644 +--- a/drivers/video/omap/lcd_palmte.c ++++ b/drivers/video/omap/lcd_palmte.c +@@ -24,7 +24,7 @@ + #include <linux/io.h> + + #include <mach/fpga.h> +-#include <mach/omapfb.h> ++#include "omapfb.h" + + static int palmte_panel_init(struct lcd_panel *panel, + struct omapfb_device *fbdev) +diff --git a/drivers/video/omap/lcd_palmtt.c b/drivers/video/omap/lcd_palmtt.c +index 48ea1f9..ff0e6d7 100644 +--- a/drivers/video/omap/lcd_palmtt.c ++++ b/drivers/video/omap/lcd_palmtt.c +@@ -30,7 +30,7 @@ GPIO13 - screen blanking + #include <linux/io.h> + + #include <mach/gpio.h> +-#include <mach/omapfb.h> ++#include "omapfb.h" + + static int palmtt_panel_init(struct lcd_panel *panel, + struct omapfb_device *fbdev) +diff --git a/drivers/video/omap/lcd_palmz71.c b/drivers/video/omap/lcd_palmz71.c +index 0697d29..2334e56 100644 +--- a/drivers/video/omap/lcd_palmz71.c ++++ b/drivers/video/omap/lcd_palmz71.c +@@ -24,7 +24,7 @@ + #include <linux/platform_device.h> + #include <linux/io.h> + +-#include <mach/omapfb.h> ++#include "omapfb.h" + + static int palmz71_panel_init(struct lcd_panel *panel, + struct omapfb_device *fbdev) +diff --git a/drivers/video/omap/lcdc.c b/drivers/video/omap/lcdc.c +index ab39492..520ed97 100644 +--- a/drivers/video/omap/lcdc.c ++++ b/drivers/video/omap/lcdc.c +@@ -30,10 +30,11 @@ + #include <linux/clk.h> + + #include <mach/dma.h> +-#include <mach/omapfb.h> + + #include <asm/mach-types.h> + ++#include "omapfb.h" ++ + #include "lcdc.h" + + #define MODULE_NAME "lcdc" +diff --git a/drivers/video/omap/omapfb.h b/drivers/video/omap/omapfb.h +new file mode 100644 +index 0000000..46e4714 +--- /dev/null ++++ b/drivers/video/omap/omapfb.h +@@ -0,0 +1,227 @@ ++/* ++ * File: drivers/video/omap/omapfb.h ++ * ++ * Framebuffer driver for TI OMAP boards ++ * ++ * Copyright (C) 2004 Nokia Corporation ++ * Author: Imre Deak <imre.deak@nokia.com> ++ * ++ * This program is free software; you can redistribute it and/or modify it ++ * under the terms of the GNU General Public License as published by the ++ * Free Software Foundation; either version 2 of the License, or (at your ++ * option) any later version. ++ * ++ * This program is distributed in the hope that it will be useful, but ++ * WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU ++ * General Public License for more details. ++ * ++ * You should have received a copy of the GNU General Public License along ++ * with this program; if not, write to the Free Software Foundation, Inc., ++ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. ++ */ ++ ++#ifndef __OMAPFB_H ++#define __OMAPFB_H ++ ++#include <linux/fb.h> ++#include <linux/mutex.h> ++#include <linux/omapfb.h> ++ ++#define OMAPFB_EVENT_READY 1 ++#define OMAPFB_EVENT_DISABLED 2 ++ ++#define OMAP_LCDC_INV_VSYNC 0x0001 ++#define OMAP_LCDC_INV_HSYNC 0x0002 ++#define OMAP_LCDC_INV_PIX_CLOCK 0x0004 ++#define OMAP_LCDC_INV_OUTPUT_EN 0x0008 ++#define OMAP_LCDC_HSVS_RISING_EDGE 0x0010 ++#define OMAP_LCDC_HSVS_OPPOSITE 0x0020 ++ ++#define OMAP_LCDC_SIGNAL_MASK 0x003f ++ ++#define OMAP_LCDC_PANEL_TFT 0x0100 ++ ++#define OMAPFB_PLANE_XRES_MIN 8 ++#define OMAPFB_PLANE_YRES_MIN 8 ++ ++struct omapfb_device; ++ ++struct lcd_panel { ++ const char *name; ++ int config; /* TFT/STN, signal inversion */ ++ int bpp; /* Pixel format in fb mem */ ++ int data_lines; /* Lines on LCD HW interface */ ++ ++ int x_res, y_res; ++ int pixel_clock; /* In kHz */ ++ int hsw; /* Horizontal synchronization ++ pulse width */ ++ int hfp; /* Horizontal front porch */ ++ int hbp; /* Horizontal back porch */ ++ int vsw; /* Vertical synchronization ++ pulse width */ ++ int vfp; /* Vertical front porch */ ++ int vbp; /* Vertical back porch */ ++ int acb; /* ac-bias pin frequency */ ++ int pcd; /* pixel clock divider. ++ Obsolete use pixel_clock instead */ ++ ++ int (*init) (struct lcd_panel *panel, ++ struct omapfb_device *fbdev); ++ void (*cleanup) (struct lcd_panel *panel); ++ int (*enable) (struct lcd_panel *panel); ++ void (*disable) (struct lcd_panel *panel); ++ unsigned long (*get_caps) (struct lcd_panel *panel); ++ int (*set_bklight_level)(struct lcd_panel *panel, ++ unsigned int level); ++ unsigned int (*get_bklight_level)(struct lcd_panel *panel); ++ unsigned int (*get_bklight_max) (struct lcd_panel *panel); ++ int (*run_test) (struct lcd_panel *panel, int test_num); ++}; ++ ++struct extif_timings { ++ int cs_on_time; ++ int cs_off_time; ++ int we_on_time; ++ int we_off_time; ++ int re_on_time; ++ int re_off_time; ++ int we_cycle_time; ++ int re_cycle_time; ++ int cs_pulse_width; ++ int access_time; ++ ++ int clk_div; ++ ++ u32 tim[5]; /* set by extif->convert_timings */ ++ ++ int converted; ++}; ++ ++struct lcd_ctrl_extif { ++ int (*init) (struct omapfb_device *fbdev); ++ void (*cleanup) (void); ++ void (*get_clk_info) (u32 *clk_period, u32 *max_clk_div); ++ unsigned long (*get_max_tx_rate)(void); ++ int (*convert_timings) (struct extif_timings *timings); ++ void (*set_timings) (const struct extif_timings *timings); ++ void (*set_bits_per_cycle)(int bpc); ++ void (*write_command) (const void *buf, unsigned int len); ++ void (*read_data) (void *buf, unsigned int len); ++ void (*write_data) (const void *buf, unsigned int len); ++ void (*transfer_area) (int width, int height, ++ void (callback)(void *data), void *data); ++ int (*setup_tearsync) (unsigned pin_cnt, ++ unsigned hs_pulse_time, unsigned vs_pulse_time, ++ int hs_pol_inv, int vs_pol_inv, int div); ++ int (*enable_tearsync) (int enable, unsigned line); ++ ++ unsigned long max_transmit_size; ++}; ++ ++struct omapfb_notifier_block { ++ struct notifier_block nb; ++ void *data; ++ int plane_idx; ++}; ++ ++typedef int (*omapfb_notifier_callback_t)(struct notifier_block *, ++ unsigned long event, ++ void *fbi); ++ ++struct lcd_ctrl { ++ const char *name; ++ void *data; ++ ++ int (*init) (struct omapfb_device *fbdev, ++ int ext_mode, ++ struct omapfb_mem_desc *req_md); ++ void (*cleanup) (void); ++ void (*bind_client) (struct omapfb_notifier_block *nb); ++ void (*get_caps) (int plane, struct omapfb_caps *caps); ++ int (*set_update_mode)(enum omapfb_update_mode mode); ++ enum omapfb_update_mode (*get_update_mode)(void); ++ int (*setup_plane) (int plane, int channel_out, ++ unsigned long offset, ++ int screen_width, ++ int pos_x, int pos_y, int width, ++ int height, int color_mode); ++ int (*set_rotate) (int angle); ++ int (*setup_mem) (int plane, size_t size, ++ int mem_type, unsigned long *paddr); ++ int (*mmap) (struct fb_info *info, ++ struct vm_area_struct *vma); ++ int (*set_scale) (int plane, ++ int orig_width, int orig_height, ++ int out_width, int out_height); ++ int (*enable_plane) (int plane, int enable); ++ int (*update_window) (struct fb_info *fbi, ++ struct omapfb_update_window *win, ++ void (*callback)(void *), ++ void *callback_data); ++ void (*sync) (void); ++ void (*suspend) (void); ++ void (*resume) (void); ++ int (*run_test) (int test_num); ++ int (*setcolreg) (u_int regno, u16 red, u16 green, ++ u16 blue, u16 transp, ++ int update_hw_mem); ++ int (*set_color_key) (struct omapfb_color_key *ck); ++ int (*get_color_key) (struct omapfb_color_key *ck); ++}; ++ ++enum omapfb_state { ++ OMAPFB_DISABLED = 0, ++ OMAPFB_SUSPENDED = 99, ++ OMAPFB_ACTIVE = 100 ++}; ++ ++struct omapfb_plane_struct { ++ int idx; ++ struct omapfb_plane_info info; ++ enum omapfb_color_format color_mode; ++ struct omapfb_device *fbdev; ++}; ++ ++struct omapfb_device { ++ int state; ++ int ext_lcdc; /* Using external ++ LCD controller */ ++ struct mutex rqueue_mutex; ++ ++ int palette_size; ++ u32 pseudo_palette[17]; ++ ++ struct lcd_panel *panel; /* LCD panel */ ++ const struct lcd_ctrl *ctrl; /* LCD controller */ ++ const struct lcd_ctrl *int_ctrl; /* internal LCD ctrl */ ++ struct lcd_ctrl_extif *ext_if; /* LCD ctrl external ++ interface */ ++ struct device *dev; ++ struct fb_var_screeninfo new_var; /* for mode changes */ ++ ++ struct omapfb_mem_desc mem_desc; ++ struct fb_info *fb_info[OMAPFB_PLANE_NUM]; ++}; ++ ++#ifdef CONFIG_ARCH_OMAP1 ++extern struct lcd_ctrl omap1_lcd_ctrl; ++#else ++extern struct lcd_ctrl omap2_disp_ctrl; ++#endif ++ ++extern void omapfb_register_panel(struct lcd_panel *panel); ++extern void omapfb_write_first_pixel(struct omapfb_device *fbdev, u16 pixval); ++extern void omapfb_notify_clients(struct omapfb_device *fbdev, ++ unsigned long event); ++extern int omapfb_register_client(struct omapfb_notifier_block *nb, ++ omapfb_notifier_callback_t callback, ++ void *callback_data); ++extern int omapfb_unregister_client(struct omapfb_notifier_block *nb); ++extern int omapfb_update_window_async(struct fb_info *fbi, ++ struct omapfb_update_window *win, ++ void (*callback)(void *), ++ void *callback_data); ++ ++#endif /* __OMAPFB_H */ +diff --git a/drivers/video/omap/omapfb_main.c b/drivers/video/omap/omapfb_main.c +index 0d0c8c8..a27614d 100644 +--- a/drivers/video/omap/omapfb_main.c ++++ b/drivers/video/omap/omapfb_main.c +@@ -29,8 +29,8 @@ + #include <linux/uaccess.h> + + #include <mach/dma.h> +-#include <mach/omapfb.h> + ++#include "omapfb.h" + #include "lcdc.h" + #include "dispc.h" + +diff --git a/drivers/video/omap/rfbi.c b/drivers/video/omap/rfbi.c +index ee01e84..fed7b1b 100644 +--- a/drivers/video/omap/rfbi.c ++++ b/drivers/video/omap/rfbi.c +@@ -27,8 +27,7 @@ + #include <linux/clk.h> + #include <linux/io.h> + +-#include <mach/omapfb.h> +- ++#include "omapfb.h" + #include "dispc.h" + + /* To work around an RFBI transfer rate limitation */ +diff --git a/drivers/video/omap/sossi.c b/drivers/video/omap/sossi.c +index a769462..6853627 100644 +--- a/drivers/video/omap/sossi.c ++++ b/drivers/video/omap/sossi.c +@@ -25,8 +25,8 @@ + #include <linux/io.h> + + #include <mach/dma.h> +-#include <mach/omapfb.h> + ++#include "omapfb.h" + #include "lcdc.h" + + #define MODULE_NAME "omapfb-sossi" +diff --git a/drivers/video/omap2/Kconfig b/drivers/video/omap2/Kconfig +new file mode 100644 +index 0000000..d877c36 +--- /dev/null ++++ b/drivers/video/omap2/Kconfig +@@ -0,0 +1,9 @@ ++config OMAP2_VRAM ++ bool ++ ++config OMAP2_VRFB ++ bool ++ ++source "drivers/video/omap2/dss/Kconfig" ++source "drivers/video/omap2/omapfb/Kconfig" ++source "drivers/video/omap2/displays/Kconfig" +diff --git a/drivers/video/omap2/Makefile b/drivers/video/omap2/Makefile +new file mode 100644 +index 0000000..d853d05 +--- /dev/null ++++ b/drivers/video/omap2/Makefile +@@ -0,0 +1,6 @@ ++obj-$(CONFIG_OMAP2_VRAM) += vram.o ++obj-$(CONFIG_OMAP2_VRFB) += vrfb.o ++ ++obj-y += dss/ ++obj-y += omapfb/ ++obj-y += displays/ +diff --git a/drivers/video/omap2/displays/Kconfig b/drivers/video/omap2/displays/Kconfig +new file mode 100644 +index 0000000..79d2861 +--- /dev/null ++++ b/drivers/video/omap2/displays/Kconfig +@@ -0,0 +1,28 @@ ++menu "OMAP2/3 Display Device Drivers" ++ depends on OMAP2_DSS ++ ++config PANEL_GENERIC ++ tristate "Generic Panel" ++ help ++ Generic panel driver. ++ Used for DVI output for Beagle and OMAP3 SDP. ++ ++config PANEL_SAMSUNG_LTE430WQ_F0C ++ tristate "Samsung LTE430WQ-F0C LCD Panel" ++ depends on OMAP2_DSS ++ help ++ LCD Panel used on Overo Palo43 ++ ++config PANEL_SHARP_LS037V7DW01 ++ tristate "Sharp LS037V7DW01 LCD Panel" ++ depends on OMAP2_DSS ++ help ++ LCD Panel used in TI's SDP3430 and EVM boards ++ ++config PANEL_TAAL ++ tristate "Taal DSI Panel" ++ depends on OMAP2_DSS_DSI ++ help ++ Taal DSI command mode panel from TPO. ++ ++endmenu +diff --git a/drivers/video/omap2/displays/Makefile b/drivers/video/omap2/displays/Makefile +new file mode 100644 +index 0000000..d44e765 +--- /dev/null ++++ b/drivers/video/omap2/displays/Makefile +@@ -0,0 +1,5 @@ ++obj-$(CONFIG_PANEL_GENERIC) += panel-generic.o ++obj-$(CONFIG_PANEL_SAMSUNG_LTE430WQ_F0C) += panel-samsung-lte430wq-f0c.o ++obj-$(CONFIG_PANEL_SHARP_LS037V7DW01) += panel-sharp-ls037v7dw01.o ++ ++obj-$(CONFIG_PANEL_TAAL) += panel-taal.o +diff --git a/drivers/video/omap2/displays/panel-generic.c b/drivers/video/omap2/displays/panel-generic.c +new file mode 100644 +index 0000000..738147e +--- /dev/null ++++ b/drivers/video/omap2/displays/panel-generic.c +@@ -0,0 +1,104 @@ ++/* ++ * Generic panel support ++ * ++ * Copyright (C) 2008 Nokia Corporation ++ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com> ++ * ++ * This program is free software; you can redistribute it and/or modify it ++ * under the terms of the GNU General Public License version 2 as published by ++ * the Free Software Foundation. ++ * ++ * This program is distributed in the hope that it will be useful, but WITHOUT ++ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or ++ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for ++ * more details. ++ * ++ * You should have received a copy of the GNU General Public License along with ++ * this program. If not, see <http://www.gnu.org/licenses/>. ++ */ ++ ++#include <linux/module.h> ++#include <linux/delay.h> ++ ++#include <mach/display.h> ++ ++static struct omap_video_timings generic_panel_timings = { ++ /* 640 x 480 @ 60 Hz Reduced blanking VESA CVT 0.31M3-R */ ++ .x_res = 640, ++ .y_res = 480, ++ .pixel_clock = 23500, ++ .hfp = 48, ++ .hsw = 32, ++ .hbp = 80, ++ .vfp = 3, ++ .vsw = 4, ++ .vbp = 7, ++}; ++ ++static int generic_panel_probe(struct omap_dss_device *dssdev) ++{ ++ dssdev->panel.config = OMAP_DSS_LCD_TFT; ++ dssdev->panel.timings = generic_panel_timings; ++ ++ return 0; ++} ++ ++static void generic_panel_remove(struct omap_dss_device *dssdev) ++{ ++} ++ ++static int generic_panel_enable(struct omap_dss_device *dssdev) ++{ ++ int r = 0; ++ ++ if (dssdev->platform_enable) ++ r = dssdev->platform_enable(dssdev); ++ ++ return r; ++} ++ ++static void generic_panel_disable(struct omap_dss_device *dssdev) ++{ ++ if (dssdev->platform_disable) ++ dssdev->platform_disable(dssdev); ++} ++ ++static int generic_panel_suspend(struct omap_dss_device *dssdev) ++{ ++ generic_panel_disable(dssdev); ++ return 0; ++} ++ ++static int generic_panel_resume(struct omap_dss_device *dssdev) ++{ ++ return generic_panel_enable(dssdev); ++} ++ ++static struct omap_dss_driver generic_driver = { ++ .probe = generic_panel_probe, ++ .remove = generic_panel_remove, ++ ++ .enable = generic_panel_enable, ++ .disable = generic_panel_disable, ++ .suspend = generic_panel_suspend, ++ .resume = generic_panel_resume, ++ ++ .driver = { ++ .name = "generic_panel", ++ .owner = THIS_MODULE, ++ }, ++}; ++ ++static int __init generic_panel_drv_init(void) ++{ ++ return omap_dss_register_driver(&generic_driver); ++} ++ ++static void __exit generic_panel_drv_exit(void) ++{ ++ omap_dss_unregister_driver(&generic_driver); ++} ++ ++module_init(generic_panel_drv_init); ++module_exit(generic_panel_drv_exit); ++MODULE_LICENSE("GPL"); +diff --git a/drivers/video/omap2/displays/panel-samsung-lte430wq-f0c.c b/drivers/video/omap2/displays/panel-samsung-lte430wq-f0c.c +new file mode 100644 +index 0000000..eafe581 +--- /dev/null ++++ b/drivers/video/omap2/displays/panel-samsung-lte430wq-f0c.c +@@ -0,0 +1,113 @@ ++/* ++ * LCD panel driver for Samsung LTE430WQ-F0C ++ * ++ * Author: Steve Sakoman <steve@sakoman.com> ++ * ++ * This program is free software; you can redistribute it and/or modify it ++ * under the terms of the GNU General Public License version 2 as published by ++ * the Free Software Foundation. ++ * ++ * This program is distributed in the hope that it will be useful, but WITHOUT ++ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or ++ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for ++ * more details. ++ * ++ * You should have received a copy of the GNU General Public License along with ++ * this program. If not, see <http://www.gnu.org/licenses/>. ++ */ ++ ++#include <linux/module.h> ++#include <linux/delay.h> ++ ++#include <mach/display.h> ++ ++static struct omap_video_timings samsung_lte_timings = { ++ .x_res = 480, ++ .y_res = 272, ++ ++ .pixel_clock = 9200, ++ ++ .hsw = 41, ++ .hfp = 8, ++ .hbp = 45-41, ++ ++ .vsw = 10, ++ .vfp = 4, ++ .vbp = 12-10, ++}; ++ ++static int samsung_lte_panel_probe(struct omap_dss_device *dssdev) ++{ ++ dssdev->panel.config = OMAP_DSS_LCD_TFT | OMAP_DSS_LCD_IVS | ++ OMAP_DSS_LCD_IHS; ++ dssdev->panel.timings = samsung_lte_timings; ++ ++ return 0; ++} ++ ++static void samsung_lte_panel_remove(struct omap_dss_device *dssdev) ++{ ++} ++ ++static int samsung_lte_panel_enable(struct omap_dss_device *dssdev) ++{ ++ int r = 0; ++ ++ /* wait couple of vsyncs until enabling the LCD */ ++ msleep(50); ++ ++ if (dssdev->platform_enable) ++ r = dssdev->platform_enable(dssdev); ++ ++ return r; ++} ++ ++static void samsung_lte_panel_disable(struct omap_dss_device *dssdev) ++{ ++ if (dssdev->platform_disable) ++ dssdev->platform_disable(dssdev); ++ ++ /* wait at least 5 vsyncs after disabling the LCD */ ++ ++ msleep(100); ++} ++ ++static int samsung_lte_panel_suspend(struct omap_dss_device *dssdev) ++{ ++ samsung_lte_panel_disable(dssdev); ++ return 0; ++} ++ ++static int samsung_lte_panel_resume(struct omap_dss_device *dssdev) ++{ ++ return samsung_lte_panel_enable(dssdev); ++} ++ ++static struct omap_dss_driver samsung_lte_driver = { ++ .probe = samsung_lte_panel_probe, ++ .remove = samsung_lte_panel_remove, ++ ++ .enable = samsung_lte_panel_enable, ++ .disable = samsung_lte_panel_disable, ++ .suspend = samsung_lte_panel_suspend, ++ .resume = samsung_lte_panel_resume, ++ ++ .driver = { ++ .name = "samsung_lte_panel", ++ .owner = THIS_MODULE, ++ }, ++}; ++ ++static int __init samsung_lte_panel_drv_init(void) ++{ ++ return omap_dss_register_driver(&samsung_lte_driver); ++} ++ ++static void __exit samsung_lte_panel_drv_exit(void) ++{ ++ omap_dss_unregister_driver(&samsung_lte_driver); ++} ++ ++module_init(samsung_lte_panel_drv_init); ++module_exit(samsung_lte_panel_drv_exit); ++MODULE_LICENSE("GPL"); +diff --git a/drivers/video/omap2/displays/panel-sharp-ls037v7dw01.c b/drivers/video/omap2/displays/panel-sharp-ls037v7dw01.c +new file mode 100644 +index 0000000..2f8f0df +--- /dev/null ++++ b/drivers/video/omap2/displays/panel-sharp-ls037v7dw01.c +@@ -0,0 +1,153 @@ ++/* ++ * LCD panel driver for Sharp LS037V7DW01 ++ * ++ * Copyright (C) 2008 Nokia Corporation ++ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com> ++ * ++ * This program is free software; you can redistribute it and/or modify it ++ * under the terms of the GNU General Public License version 2 as published by ++ * the Free Software Foundation. ++ * ++ * This program is distributed in the hope that it will be useful, but WITHOUT ++ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or ++ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for ++ * more details. ++ * ++ * You should have received a copy of the GNU General Public License along with ++ * this program. If not, see <http://www.gnu.org/licenses/>. ++ */ ++ ++#include <linux/module.h> ++#include <linux/delay.h> ++#include <linux/device.h> ++#include <linux/regulator/consumer.h> ++#include <linux/err.h> ++ ++#include <mach/display.h> ++ ++struct sharp_data { ++ /* XXX This regulator should actually be in SDP board file, not here, ++ * as it doesn't actually power the LCD, but something else that ++ * affects the output to LCD (I think. Somebody clarify). It doesn't do ++ * harm here, as SDP is the only board using this currently */ ++ struct regulator *vdvi_reg; ++}; ++ ++static struct omap_video_timings sharp_ls_timings = { ++ .x_res = 480, ++ .y_res = 640, ++ ++ .pixel_clock = 19200, ++ ++ .hsw = 2, ++ .hfp = 1, ++ .hbp = 28, ++ ++ .vsw = 1, ++ .vfp = 1, ++ .vbp = 1, ++}; ++ ++static int sharp_ls_panel_probe(struct omap_dss_device *dssdev) ++{ ++ struct sharp_data *sd; ++ ++ dssdev->panel.config = OMAP_DSS_LCD_TFT | OMAP_DSS_LCD_IVS | ++ OMAP_DSS_LCD_IHS; ++ dssdev->panel.acb = 0x28; ++ dssdev->panel.timings = sharp_ls_timings; ++ ++ sd = kzalloc(sizeof(*sd), GFP_KERNEL); ++ if (!sd) ++ return -ENOMEM; ++ ++ dev_set_drvdata(&dssdev->dev, sd); ++ ++ sd->vdvi_reg = regulator_get(&dssdev->dev, "vdvi"); ++ if (IS_ERR(sd->vdvi_reg)) { ++ kfree(sd); ++ pr_err("failed to get VDVI regulator\n"); ++ return PTR_ERR(sd->vdvi_reg); ++ } ++ ++ return 0; ++} ++ ++static void sharp_ls_panel_remove(struct omap_dss_device *dssdev) ++{ ++ struct sharp_data *sd = dev_get_drvdata(&dssdev->dev); ++ ++ regulator_put(sd->vdvi_reg); ++ ++ kfree(sd); ++} ++ ++static int sharp_ls_panel_enable(struct omap_dss_device *dssdev) ++{ ++ struct sharp_data *sd = dev_get_drvdata(&dssdev->dev); ++ int r = 0; ++ ++ /* wait couple of vsyncs until enabling the LCD */ ++ msleep(50); ++ ++ regulator_enable(sd->vdvi_reg); ++ ++ if (dssdev->platform_enable) ++ r = dssdev->platform_enable(dssdev); ++ ++ return r; ++} ++ ++static void sharp_ls_panel_disable(struct omap_dss_device *dssdev) ++{ ++ struct sharp_data *sd = dev_get_drvdata(&dssdev->dev); ++ ++ if (dssdev->platform_disable) ++ dssdev->platform_disable(dssdev); ++ ++ regulator_disable(sd->vdvi_reg); ++ ++ /* wait at least 5 vsyncs after disabling the LCD */ ++ ++ msleep(100); ++} ++ ++static int sharp_ls_panel_suspend(struct omap_dss_device *dssdev) ++{ ++ sharp_ls_panel_disable(dssdev); ++ return 0; ++} ++ ++static int sharp_ls_panel_resume(struct omap_dss_device *dssdev) ++{ ++ return sharp_ls_panel_enable(dssdev); ++} ++ ++static struct omap_dss_driver sharp_ls_driver = { ++ .probe = sharp_ls_panel_probe, ++ .remove = sharp_ls_panel_remove, ++ ++ .enable = sharp_ls_panel_enable, ++ .disable = sharp_ls_panel_disable, ++ .suspend = sharp_ls_panel_suspend, ++ .resume = sharp_ls_panel_resume, ++ ++ .driver = { ++ .name = "sharp_ls_panel", ++ .owner = THIS_MODULE, ++ }, ++}; ++ ++static int __init sharp_ls_panel_drv_init(void) ++{ ++ return omap_dss_register_driver(&sharp_ls_driver); ++} ++ ++static void __exit sharp_ls_panel_drv_exit(void) ++{ ++ omap_dss_unregister_driver(&sharp_ls_driver); ++} ++ ++module_init(sharp_ls_panel_drv_init); ++module_exit(sharp_ls_panel_drv_exit); ++MODULE_LICENSE("GPL"); +diff --git a/drivers/video/omap2/displays/panel-taal.c b/drivers/video/omap2/displays/panel-taal.c +new file mode 100644 +index 0000000..84f0d47 +--- /dev/null ++++ b/drivers/video/omap2/displays/panel-taal.c +@@ -0,0 +1,900 @@ ++/* ++ * Taal DSI command mode panel ++ * ++ * Copyright (C) 2009 Nokia Corporation ++ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com> ++ * ++ * This program is free software; you can redistribute it and/or modify it ++ * under the terms of the GNU General Public License version 2 as published by ++ * the Free Software Foundation. ++ * ++ * This program is distributed in the hope that it will be useful, but WITHOUT ++ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or ++ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for ++ * more details. ++ * ++ * You should have received a copy of the GNU General Public License along with ++ * this program. If not, see <http://www.gnu.org/licenses/>. ++ */ ++ ++/*#define DEBUG*/ ++ ++#include <linux/module.h> ++#include <linux/delay.h> ++#include <linux/err.h> ++#include <linux/jiffies.h> ++#include <linux/sched.h> ++#include <linux/backlight.h> ++#include <linux/fb.h> ++#include <linux/interrupt.h> ++#include <linux/gpio.h> ++#include <linux/completion.h> ++ ++#include <mach/display.h> ++ ++/* DSI Virtual channel. Hardcoded for now. */ ++#define TCH 0 ++ ++#define DCS_READ_NUM_ERRORS 0x05 ++#define DCS_READ_POWER_MODE 0x0a ++#define DCS_READ_MADCTL 0x0b ++#define DCS_READ_PIXEL_FORMAT 0x0c ++#define DCS_SLEEP_IN 0x10 ++#define DCS_SLEEP_OUT 0x11 ++#define DCS_DISPLAY_OFF 0x28 ++#define DCS_DISPLAY_ON 0x29 ++#define DCS_COLUMN_ADDR 0x2a ++#define DCS_PAGE_ADDR 0x2b ++#define DCS_MEMORY_WRITE 0x2c ++#define DCS_TEAR_OFF 0x34 ++#define DCS_TEAR_ON 0x35 ++#define DCS_MEM_ACC_CTRL 0x36 ++#define DCS_PIXEL_FORMAT 0x3a ++#define DCS_BRIGHTNESS 0x51 ++#define DCS_CTRL_DISPLAY 0x53 ++#define DCS_WRITE_CABC 0x55 ++#define DCS_READ_CABC 0x56 ++#define DCS_GET_ID1 0xda ++#define DCS_GET_ID2 0xdb ++#define DCS_GET_ID3 0xdc ++ ++struct taal_data { ++ struct backlight_device *bldev; ++ ++ unsigned long hw_guard_end; /* next value of jiffies when we can ++ * issue the next sleep in/out command ++ */ ++ unsigned long hw_guard_wait; /* max guard time in jiffies */ ++ ++ struct omap_dss_device *dssdev; ++ ++ bool enabled; ++ u8 rotate; ++ bool mirror; ++ ++ bool te_enabled; ++ bool use_ext_te; ++ struct completion te_completion; ++ ++ bool use_dsi_bl; ++ ++ bool cabc_broken; ++ unsigned cabc_mode; ++ ++ bool intro_printed; ++}; ++ ++static void hw_guard_start(struct taal_data *td, int guard_msec) ++{ ++ td->hw_guard_wait = msecs_to_jiffies(guard_msec); ++ td->hw_guard_end = jiffies + td->hw_guard_wait; ++} ++ ++static void hw_guard_wait(struct taal_data *td) ++{ ++ unsigned long wait = td->hw_guard_end - jiffies; ++ ++ if ((long)wait > 0 && wait <= td->hw_guard_wait) { ++ set_current_state(TASK_UNINTERRUPTIBLE); ++ schedule_timeout(wait); ++ } ++} ++ ++static int taal_dcs_read_1(u8 dcs_cmd, u8 *data) ++{ ++ int r; ++ u8 buf[1]; ++ ++ r = dsi_vc_dcs_read(TCH, dcs_cmd, buf, 1); ++ ++ if (r < 0) ++ return r; ++ ++ *data = buf[0]; ++ ++ return 0; ++} ++ ++static int taal_dcs_write_0(u8 dcs_cmd) ++{ ++ return dsi_vc_dcs_write(TCH, &dcs_cmd, 1); ++} ++ ++static int taal_dcs_write_1(u8 dcs_cmd, u8 param) ++{ ++ u8 buf[2]; ++ buf[0] = dcs_cmd; ++ buf[1] = param; ++ return dsi_vc_dcs_write(TCH, buf, 2); ++} ++ ++static int taal_sleep_in(struct taal_data *td) ++ ++{ ++ u8 cmd; ++ int r; ++ ++ hw_guard_wait(td); ++ ++ cmd = DCS_SLEEP_IN; ++ r = dsi_vc_dcs_write_nosync(TCH, &cmd, 1); ++ if (r) ++ return r; ++ ++ hw_guard_start(td, 120); ++ ++ msleep(5); ++ ++ return 0; ++} ++ ++static int taal_sleep_out(struct taal_data *td) ++{ ++ int r; ++ ++ hw_guard_wait(td); ++ ++ r = taal_dcs_write_0(DCS_SLEEP_OUT); ++ if (r) ++ return r; ++ ++ hw_guard_start(td, 120); ++ ++ msleep(5); ++ ++ return 0; ++} ++ ++static int taal_get_id(u8 *id1, u8 *id2, u8 *id3) ++{ ++ int r; ++ ++ r = taal_dcs_read_1(DCS_GET_ID1, id1); ++ if (r) ++ return r; ++ r = taal_dcs_read_1(DCS_GET_ID2, id2); ++ if (r) ++ return r; ++ r = taal_dcs_read_1(DCS_GET_ID3, id3); ++ if (r) ++ return r; ++ ++ return 0; ++} ++ ++static int taal_set_addr_mode(u8 rotate, bool mirror) ++{ ++ int r; ++ u8 mode; ++ int b5, b6, b7; ++ ++ r = taal_dcs_read_1(DCS_READ_MADCTL, &mode); ++ if (r) ++ return r; ++ ++ switch (rotate) { ++ default: ++ case 0: ++ b7 = 0; ++ b6 = 0; ++ b5 = 0; ++ break; ++ case 1: ++ b7 = 0; ++ b6 = 1; ++ b5 = 1; ++ break; ++ case 2: ++ b7 = 1; ++ b6 = 1; ++ b5 = 0; ++ break; ++ case 3: ++ b7 = 1; ++ b6 = 0; ++ b5 = 1; ++ break; ++ } ++ ++ if (mirror) ++ b6 = !b6; ++ ++ mode &= ~((1<<7) | (1<<6) | (1<<5)); ++ mode |= (b7 << 7) | (b6 << 6) | (b5 << 5); ++ ++ return taal_dcs_write_1(DCS_MEM_ACC_CTRL, mode); ++} ++ ++static int taal_set_update_window(u16 x, u16 y, u16 w, u16 h) ++{ ++ int r; ++ u16 x1 = x; ++ u16 x2 = x + w - 1; ++ u16 y1 = y; ++ u16 y2 = y + h - 1; ++ ++ u8 buf[5]; ++ buf[0] = DCS_COLUMN_ADDR; ++ buf[1] = (x1 >> 8) & 0xff; ++ buf[2] = (x1 >> 0) & 0xff; ++ buf[3] = (x2 >> 8) & 0xff; ++ buf[4] = (x2 >> 0) & 0xff; ++ ++ r = dsi_vc_dcs_write_nosync(TCH, buf, sizeof(buf)); ++ if (r) ++ return r; ++ ++ buf[0] = DCS_PAGE_ADDR; ++ buf[1] = (y1 >> 8) & 0xff; ++ buf[2] = (y1 >> 0) & 0xff; ++ buf[3] = (y2 >> 8) & 0xff; ++ buf[4] = (y2 >> 0) & 0xff; ++ ++ r = dsi_vc_dcs_write_nosync(TCH, buf, sizeof(buf)); ++ if (r) ++ return r; ++ ++ dsi_vc_send_bta_sync(TCH); ++ ++ return r; ++} ++ ++static int taal_bl_update_status(struct backlight_device *dev) ++{ ++ struct omap_dss_device *dssdev = dev_get_drvdata(&dev->dev); ++ struct taal_data *td = dev_get_drvdata(&dssdev->dev); ++ int r; ++ int level; ++ ++ if (dev->props.fb_blank == FB_BLANK_UNBLANK && ++ dev->props.power == FB_BLANK_UNBLANK) ++ level = dev->props.brightness; ++ else ++ level = 0; ++ ++ dev_dbg(&dssdev->dev, "update brightness to %d\n", level); ++ ++ if (td->use_dsi_bl) { ++ if (td->enabled) { ++ dsi_bus_lock(); ++ r = taal_dcs_write_1(DCS_BRIGHTNESS, level); ++ dsi_bus_unlock(); ++ if (r) ++ return r; ++ } ++ } else { ++ if (!dssdev->set_backlight) ++ return -EINVAL; ++ ++ r = dssdev->set_backlight(dssdev, level); ++ if (r) ++ return r; ++ } ++ ++ return 0; ++} ++ ++static int taal_bl_get_intensity(struct backlight_device *dev) ++{ ++ if (dev->props.fb_blank == FB_BLANK_UNBLANK && ++ dev->props.power == FB_BLANK_UNBLANK) ++ return dev->props.brightness; ++ ++ return 0; ++} ++ ++static struct backlight_ops taal_bl_ops = { ++ .get_brightness = taal_bl_get_intensity, ++ .update_status = taal_bl_update_status, ++}; ++ ++static void taal_get_timings(struct omap_dss_device *dssdev, ++ struct omap_video_timings *timings) ++{ ++ *timings = dssdev->panel.timings; ++} ++ ++static void taal_get_resolution(struct omap_dss_device *dssdev, ++ u16 *xres, u16 *yres) ++{ ++ struct taal_data *td = dev_get_drvdata(&dssdev->dev); ++ ++ if (td->rotate == 0 || td->rotate == 2) { ++ *xres = dssdev->panel.timings.x_res; ++ *yres = dssdev->panel.timings.y_res; ++ } else { ++ *yres = dssdev->panel.timings.x_res; ++ *xres = dssdev->panel.timings.y_res; ++ } ++} ++ ++static irqreturn_t taal_te_isr(int irq, void *data) ++{ ++ struct omap_dss_device *dssdev = data; ++ struct taal_data *td = dev_get_drvdata(&dssdev->dev); ++ ++ complete_all(&td->te_completion); ++ ++ return IRQ_HANDLED; ++} ++ ++static ssize_t taal_num_errors_show(struct device *dev, ++ struct device_attribute *attr, char *buf) ++{ ++ struct omap_dss_device *dssdev = to_dss_device(dev); ++ struct taal_data *td = dev_get_drvdata(&dssdev->dev); ++ u8 errors; ++ int r; ++ ++ if (td->enabled) { ++ dsi_bus_lock(); ++ r = taal_dcs_read_1(DCS_READ_NUM_ERRORS, &errors); ++ dsi_bus_unlock(); ++ } else { ++ r = -ENODEV; ++ } ++ ++ if (r) ++ return r; ++ ++ return snprintf(buf, PAGE_SIZE, "%d\n", errors); ++} ++ ++static ssize_t taal_hw_revision_show(struct device *dev, ++ struct device_attribute *attr, char *buf) ++{ ++ struct omap_dss_device *dssdev = to_dss_device(dev); ++ struct taal_data *td = dev_get_drvdata(&dssdev->dev); ++ u8 id1, id2, id3; ++ int r; ++ ++ if (td->enabled) { ++ dsi_bus_lock(); ++ r = taal_get_id(&id1, &id2, &id3); ++ dsi_bus_unlock(); ++ } else { ++ r = -ENODEV; ++ } ++ ++ if (r) ++ return r; ++ ++ return snprintf(buf, PAGE_SIZE, "%02x.%02x.%02x\n", id1, id2, id3); ++} ++ ++static const char *cabc_modes[] = { ++ "off", /* used also always when CABC is not supported */ ++ "ui", ++ "still-image", ++ "moving-image", ++}; ++ ++static ssize_t show_cabc_mode(struct device *dev, ++ struct device_attribute *attr, ++ char *buf) ++{ ++ struct omap_dss_device *dssdev = to_dss_device(dev); ++ struct taal_data *td = dev_get_drvdata(&dssdev->dev); ++ const char *mode_str; ++ int mode; ++ int len; ++ ++ mode = td->cabc_mode; ++ ++ mode_str = "unknown"; ++ if (mode >= 0 && mode < ARRAY_SIZE(cabc_modes)) ++ mode_str = cabc_modes[mode]; ++ len = snprintf(buf, PAGE_SIZE, "%s\n", mode_str); ++ ++ return len < PAGE_SIZE - 1 ? len : PAGE_SIZE - 1; ++} ++ ++static ssize_t store_cabc_mode(struct device *dev, ++ struct device_attribute *attr, ++ const char *buf, size_t count) ++{ ++ struct omap_dss_device *dssdev = to_dss_device(dev); ++ struct taal_data *td = dev_get_drvdata(&dssdev->dev); ++ int i; ++ ++ for (i = 0; i < ARRAY_SIZE(cabc_modes); i++) { ++ if (sysfs_streq(cabc_modes[i], buf)) ++ break; ++ } ++ ++ if (i == ARRAY_SIZE(cabc_modes)) ++ return -EINVAL; ++ ++ if (td->enabled) { ++ dsi_bus_lock(); ++ if (!td->cabc_broken) ++ taal_dcs_write_1(DCS_WRITE_CABC, i); ++ dsi_bus_unlock(); ++ } ++ ++ td->cabc_mode = i; ++ ++ return count; ++} ++ ++static ssize_t show_cabc_available_modes(struct device *dev, ++ struct device_attribute *attr, ++ char *buf) ++{ ++ int len; ++ int i; ++ ++ for (i = 0, len = 0; ++ len < PAGE_SIZE && i < ARRAY_SIZE(cabc_modes); i++) ++ len += snprintf(&buf[len], PAGE_SIZE - len, "%s%s%s", ++ i ? " " : "", cabc_modes[i], ++ i == ARRAY_SIZE(cabc_modes) - 1 ? "\n" : ""); ++ ++ return len < PAGE_SIZE ? len : PAGE_SIZE - 1; ++} ++ ++static DEVICE_ATTR(num_dsi_errors, S_IRUGO, taal_num_errors_show, NULL); ++static DEVICE_ATTR(hw_revision, S_IRUGO, taal_hw_revision_show, NULL); ++static DEVICE_ATTR(cabc_mode, S_IRUGO | S_IWUSR, ++ show_cabc_mode, store_cabc_mode); ++static DEVICE_ATTR(cabc_available_modes, S_IRUGO, ++ show_cabc_available_modes, NULL); ++ ++static struct attribute *taal_attrs[] = { ++ &dev_attr_num_dsi_errors.attr, ++ &dev_attr_hw_revision.attr, ++ &dev_attr_cabc_mode.attr, ++ &dev_attr_cabc_available_modes.attr, ++ NULL, ++}; ++ ++static struct attribute_group taal_attr_group = { ++ .attrs = taal_attrs, ++}; ++ ++static int taal_probe(struct omap_dss_device *dssdev) ++{ ++ struct taal_data *td; ++ struct backlight_device *bldev; ++ int r; ++ ++ const struct omap_video_timings taal_panel_timings = { ++ .x_res = 864, ++ .y_res = 480, ++ }; ++ ++ dev_dbg(&dssdev->dev, "probe\n"); ++ ++ dssdev->panel.config = OMAP_DSS_LCD_TFT; ++ dssdev->panel.timings = taal_panel_timings; ++ dssdev->ctrl.pixel_size = 24; ++ ++ td = kzalloc(sizeof(*td), GFP_KERNEL); ++ if (!td) { ++ r = -ENOMEM; ++ goto err0; ++ } ++ ++ dev_set_drvdata(&dssdev->dev, td); ++ ++ dssdev->get_timings = taal_get_timings; ++ dssdev->get_resolution = taal_get_resolution; ++ ++ /* if no platform set_backlight() defined, presume DSI backlight ++ * control */ ++ if (!dssdev->set_backlight) ++ td->use_dsi_bl = true; ++ ++ bldev = backlight_device_register("taal", &dssdev->dev, dssdev, ++ &taal_bl_ops); ++ if (IS_ERR(bldev)) { ++ r = PTR_ERR(bldev); ++ goto err1; ++ } ++ ++ td->bldev = bldev; ++ ++ bldev->props.fb_blank = FB_BLANK_UNBLANK; ++ bldev->props.power = FB_BLANK_UNBLANK; ++ if (td->use_dsi_bl) { ++ bldev->props.max_brightness = 255; ++ bldev->props.brightness = 255; ++ } else { ++ bldev->props.max_brightness = 127; ++ bldev->props.brightness = 127; ++ } ++ ++ taal_bl_update_status(bldev); ++ ++ if (dssdev->phy.dsi.ext_te) { ++ int gpio = dssdev->phy.dsi.ext_te_gpio; ++ ++ r = gpio_request(gpio, "taal irq"); ++ if (r) { ++ dev_err(&dssdev->dev, "GPIO request failed\n"); ++ goto err2; ++ } ++ ++ gpio_direction_input(gpio); ++ ++ r = request_irq(gpio_to_irq(gpio), taal_te_isr, ++ IRQF_DISABLED | IRQF_TRIGGER_RISING, ++ "taal vsync", dssdev); ++ ++ if (r) { ++ dev_err(&dssdev->dev, "IRQ request failed\n"); ++ gpio_free(gpio); ++ goto err2; ++ } ++ ++ init_completion(&td->te_completion); ++ ++ td->use_ext_te = true; ++ } ++ ++ r = sysfs_create_group(&dssdev->dev.kobj, &taal_attr_group); ++ if (r) { ++ dev_err(&dssdev->dev, "failed to create sysfs files\n"); ++ goto err3; ++ } ++ ++ return 0; ++err3: ++ if (td->use_ext_te) { ++ int gpio = dssdev->phy.dsi.ext_te_gpio; ++ free_irq(gpio_to_irq(gpio), dssdev); ++ gpio_free(gpio); ++ } ++err2: ++ backlight_device_unregister(bldev); ++err1: ++ kfree(td); ++err0: ++ return r; ++} ++ ++static void taal_remove(struct omap_dss_device *dssdev) ++{ ++ struct taal_data *td = dev_get_drvdata(&dssdev->dev); ++ struct backlight_device *bldev; ++ ++ dev_dbg(&dssdev->dev, "remove\n"); ++ ++ sysfs_remove_group(&dssdev->dev.kobj, &taal_attr_group); ++ ++ if (td->use_ext_te) { ++ int gpio = dssdev->phy.dsi.ext_te_gpio; ++ free_irq(gpio_to_irq(gpio), dssdev); ++ gpio_free(gpio); ++ } ++ ++ bldev = td->bldev; ++ bldev->props.power = FB_BLANK_POWERDOWN; ++ taal_bl_update_status(bldev); ++ backlight_device_unregister(bldev); ++ ++ kfree(td); ++} ++ ++static int taal_enable(struct omap_dss_device *dssdev) ++{ ++ struct taal_data *td = dev_get_drvdata(&dssdev->dev); ++ u8 id1, id2, id3; ++ int r; ++ ++ dev_dbg(&dssdev->dev, "enable\n"); ++ ++ if (dssdev->platform_enable) { ++ r = dssdev->platform_enable(dssdev); ++ if (r) ++ return r; ++ } ++ ++ /* it seems we have to wait a bit until taal is ready */ ++ msleep(5); ++ ++ r = taal_sleep_out(td); ++ if (r) ++ return r; ++ ++ r = taal_get_id(&id1, &id2, &id3); ++ if (r) ++ return r; ++ ++ /* on early revisions CABC is broken */ ++ if (id2 == 0x00 || id2 == 0xff || id2 == 0x81) ++ td->cabc_broken = true; ++ ++ taal_dcs_write_1(DCS_BRIGHTNESS, 0xff); ++ taal_dcs_write_1(DCS_CTRL_DISPLAY, (1<<2) | (1<<5)); /* BL | BCTRL */ ++ ++ taal_dcs_write_1(DCS_PIXEL_FORMAT, 0x7); /* 24bit/pixel */ ++ ++ taal_set_addr_mode(td->rotate, td->mirror); ++ if (!td->cabc_broken) ++ taal_dcs_write_1(DCS_WRITE_CABC, td->cabc_mode); ++ ++ taal_dcs_write_0(DCS_DISPLAY_ON); ++ ++ td->enabled = 1; ++ ++ if (!td->intro_printed) { ++ dev_info(&dssdev->dev, "revision %02x.%02x.%02x\n", ++ id1, id2, id3); ++ if (td->cabc_broken) ++ dev_info(&dssdev->dev, ++ "old Taal version, CABC disabled\n"); ++ td->intro_printed = true; ++ } ++ ++ return 0; ++} ++ ++static void taal_disable(struct omap_dss_device *dssdev) ++{ ++ struct taal_data *td = dev_get_drvdata(&dssdev->dev); ++ ++ dev_dbg(&dssdev->dev, "disable\n"); ++ ++ taal_dcs_write_0(DCS_DISPLAY_OFF); ++ taal_sleep_in(td); ++ ++ /* wait a bit so that the message goes through */ ++ msleep(10); ++ ++ if (dssdev->platform_disable) ++ dssdev->platform_disable(dssdev); ++ ++ td->enabled = 0; ++} ++ ++static int taal_suspend(struct omap_dss_device *dssdev) ++{ ++ struct taal_data *td = dev_get_drvdata(&dssdev->dev); ++ struct backlight_device *bldev = td->bldev; ++ ++ bldev->props.power = FB_BLANK_POWERDOWN; ++ taal_bl_update_status(bldev); ++ ++ return 0; ++} ++ ++static int taal_resume(struct omap_dss_device *dssdev) ++{ ++ struct taal_data *td = dev_get_drvdata(&dssdev->dev); ++ struct backlight_device *bldev = td->bldev; ++ ++ bldev->props.power = FB_BLANK_UNBLANK; ++ taal_bl_update_status(bldev); ++ ++ return 0; ++} ++ ++static void taal_setup_update(struct omap_dss_device *dssdev, ++ u16 x, u16 y, u16 w, u16 h) ++{ ++ taal_set_update_window(x, y, w, h); ++} ++ ++static int taal_enable_te(struct omap_dss_device *dssdev, bool enable) ++{ ++ struct taal_data *td = dev_get_drvdata(&dssdev->dev); ++ int r; ++ ++ td->te_enabled = enable; ++ ++ if (enable) ++ r = taal_dcs_write_1(DCS_TEAR_ON, 0); ++ else ++ r = taal_dcs_write_0(DCS_TEAR_OFF); ++ ++ return r; ++} ++ ++static int taal_wait_te(struct omap_dss_device *dssdev) ++{ ++ struct taal_data *td = dev_get_drvdata(&dssdev->dev); ++ long wait = msecs_to_jiffies(500); ++ ++ if (!td->use_ext_te || !td->te_enabled) ++ return 0; ++ ++ INIT_COMPLETION(td->te_completion); ++ wait = wait_for_completion_timeout(&td->te_completion, wait); ++ if (wait == 0) { ++ dev_err(&dssdev->dev, "timeout waiting TE\n"); ++ return -ETIME; ++ } ++ ++ return 0; ++} ++ ++static int taal_rotate(struct omap_dss_device *dssdev, u8 rotate) ++{ ++ struct taal_data *td = dev_get_drvdata(&dssdev->dev); ++ int r; ++ ++ dev_dbg(&dssdev->dev, "rotate %d\n", rotate); ++ ++ if (td->enabled) { ++ r = taal_set_addr_mode(rotate, td->mirror); ++ ++ if (r) ++ return r; ++ } ++ ++ td->rotate = rotate; ++ ++ return 0; ++} ++ ++static u8 taal_get_rotate(struct omap_dss_device *dssdev) ++{ ++ struct taal_data *td = dev_get_drvdata(&dssdev->dev); ++ return td->rotate; ++} ++ ++static int taal_mirror(struct omap_dss_device *dssdev, bool enable) ++{ ++ struct taal_data *td = dev_get_drvdata(&dssdev->dev); ++ int r; ++ ++ dev_dbg(&dssdev->dev, "mirror %d\n", enable); ++ ++ if (td->enabled) { ++ r = taal_set_addr_mode(td->rotate, enable); ++ ++ if (r) ++ return r; ++ } ++ ++ td->mirror = enable; ++ ++ return 0; ++} ++ ++static bool taal_get_mirror(struct omap_dss_device *dssdev) ++{ ++ struct taal_data *td = dev_get_drvdata(&dssdev->dev); ++ return td->mirror; ++} ++ ++static int taal_run_test(struct omap_dss_device *dssdev, int test_num) ++{ ++ u8 id1, id2, id3; ++ int r; ++ ++ r = taal_dcs_read_1(DCS_GET_ID1, &id1); ++ if (r) ++ return r; ++ r = taal_dcs_read_1(DCS_GET_ID2, &id2); ++ if (r) ++ return r; ++ r = taal_dcs_read_1(DCS_GET_ID3, &id3); ++ if (r) ++ return r; ++ ++ return 0; ++} ++ ++static int taal_memory_read(struct omap_dss_device *dssdev, ++ void *buf, size_t size, ++ u16 x, u16 y, u16 w, u16 h) ++{ ++ int r; ++ int first = 1; ++ int plen; ++ unsigned buf_used = 0; ++ ++ if (size < w * h * 3) ++ return -ENOMEM; ++ ++ size = min(w * h * 3, ++ dssdev->panel.timings.x_res * ++ dssdev->panel.timings.y_res * 3); ++ ++ /* plen 1 or 2 goes into short packet. until checksum error is fixed, ++ * use short packets. plen 32 works, but bigger packets seem to cause ++ * an error. */ ++ if (size % 2) ++ plen = 1; ++ else ++ plen = 2; ++ ++ taal_setup_update(dssdev, x, y, w, h); ++ ++ r = dsi_vc_set_max_rx_packet_size(TCH, plen); ++ if (r) ++ return r; ++ ++ while (buf_used < size) { ++ u8 dcs_cmd = first ? 0x2e : 0x3e; ++ first = 0; ++ ++ r = dsi_vc_dcs_read(TCH, dcs_cmd, ++ buf + buf_used, size - buf_used); ++ ++ if (r < 0) { ++ dev_err(&dssdev->dev, "read error\n"); ++ goto err; ++ } ++ ++ buf_used += r; ++ ++ if (r < plen) { ++ dev_err(&dssdev->dev, "short read\n"); ++ break; ++ } ++ } ++ ++ r = buf_used; ++ ++err: ++ dsi_vc_set_max_rx_packet_size(TCH, 1); ++ ++ return r; ++} ++ ++static struct omap_dss_driver taal_driver = { ++ .probe = taal_probe, ++ .remove = taal_remove, ++ ++ .enable = taal_enable, ++ .disable = taal_disable, ++ .suspend = taal_suspend, ++ .resume = taal_resume, ++ ++ .setup_update = taal_setup_update, ++ .enable_te = taal_enable_te, ++ .wait_for_te = taal_wait_te, ++ .set_rotate = taal_rotate, ++ .get_rotate = taal_get_rotate, ++ .set_mirror = taal_mirror, ++ .get_mirror = taal_get_mirror, ++ .run_test = taal_run_test, ++ .memory_read = taal_memory_read, ++ ++ .driver = { ++ .name = "taal", ++ .owner = THIS_MODULE, ++ }, ++}; ++ ++static int __init taal_init(void) ++{ ++ omap_dss_register_driver(&taal_driver); ++ ++ return 0; ++} ++ ++static void __exit taal_exit(void) ++{ ++ omap_dss_unregister_driver(&taal_driver); ++} ++ ++module_init(taal_init); ++module_exit(taal_exit); ++ ++MODULE_AUTHOR("Tomi Valkeinen <tomi.valkeinen@nokia.com>"); ++MODULE_DESCRIPTION("Taal Driver"); ++MODULE_LICENSE("GPL"); +diff --git a/drivers/video/omap2/dss/Kconfig b/drivers/video/omap2/dss/Kconfig +new file mode 100644 +index 0000000..71d8dec +--- /dev/null ++++ b/drivers/video/omap2/dss/Kconfig +@@ -0,0 +1,89 @@ ++menuconfig OMAP2_DSS ++ tristate "OMAP2/3 Display Subsystem support (EXPERIMENTAL)" ++ depends on ARCH_OMAP2 || ARCH_OMAP3 ++ help ++ OMAP2/3 Display Subsystem support. ++ ++if OMAP2_DSS ++ ++config OMAP2_VRAM_SIZE ++ int "VRAM size (MB)" ++ range 0 32 ++ default 0 ++ help ++ The amount of SDRAM to reserve at boot time for video RAM use. ++ This VRAM will be used by omapfb and other drivers that need ++ large continuous RAM area for video use. ++ ++ You can also set this with "vram=<bytes>" kernel argument, or ++ in the board file. ++ ++config OMAP2_DSS_DEBUG_SUPPORT ++ bool "Debug support" ++ default y ++ help ++ This enables debug messages. You need to enable printing ++ with 'debug' module parameter. ++ ++config OMAP2_DSS_RFBI ++ bool "RFBI support" ++ default n ++ help ++ MIPI DBI, or RFBI (Remote Framebuffer Interface), support. ++ ++config OMAP2_DSS_VENC ++ bool "VENC support" ++ default y ++ help ++ OMAP Video Encoder support. ++ ++config OMAP2_DSS_SDI ++ bool "SDI support" ++ depends on ARCH_OMAP3 ++ default n ++ help ++ SDI (Serial Display Interface) support. ++ ++config OMAP2_DSS_DSI ++ bool "DSI support" ++ depends on ARCH_OMAP3 ++ default n ++ help ++ MIPI DSI support. ++ ++config OMAP2_DSS_USE_DSI_PLL ++ bool "Use DSI PLL for PCLK (EXPERIMENTAL)" ++ default n ++ depends on OMAP2_DSS_DSI ++ help ++ Use DSI PLL to generate pixel clock. Currently only for DPI output. ++ DSI PLL can be used to generate higher and more precise pixel clocks. ++ ++config OMAP2_DSS_FAKE_VSYNC ++ bool "Fake VSYNC irq from manual update displays" ++ default n ++ help ++ If this is selected, DSI will generate a fake DISPC VSYNC interrupt ++ when DSI has sent a frame. This is only needed with DSI or RFBI ++ displays using manual mode, and you want VSYNC to, for example, ++ time animation. ++ ++config OMAP2_DSS_MIN_FCK_PER_PCK ++ int "Minimum FCK/PCK ratio (for scaling)" ++ range 0 32 ++ default 0 ++ help ++ This can be used to adjust the minimum FCK/PCK ratio. ++ ++ With this you can make sure that DISPC FCK is at least ++ n x PCK. Video plane scaling requires higher FCK than ++ normally. ++ ++ If this is set to 0, there's no extra constraint on the ++ DISPC FCK. However, the FCK will at minimum be ++ 2xPCK (if active matrix) or 3xPCK (if passive matrix). ++ ++ Max FCK is 173MHz, so this doesn't work if your PCK ++ is very high. ++ ++endif +diff --git a/drivers/video/omap2/dss/Makefile b/drivers/video/omap2/dss/Makefile +new file mode 100644 +index 0000000..980c72c +--- /dev/null ++++ b/drivers/video/omap2/dss/Makefile +@@ -0,0 +1,6 @@ ++obj-$(CONFIG_OMAP2_DSS) += omapdss.o ++omapdss-y := core.o dss.o dispc.o dpi.o display.o manager.o overlay.o ++omapdss-$(CONFIG_OMAP2_DSS_RFBI) += rfbi.o ++omapdss-$(CONFIG_OMAP2_DSS_VENC) += venc.o ++omapdss-$(CONFIG_OMAP2_DSS_SDI) += sdi.o ++omapdss-$(CONFIG_OMAP2_DSS_DSI) += dsi.o +diff --git a/drivers/video/omap2/dss/core.c b/drivers/video/omap2/dss/core.c +new file mode 100644 +index 0000000..e8d430c +--- /dev/null ++++ b/drivers/video/omap2/dss/core.c +@@ -0,0 +1,917 @@ ++/* ++ * linux/drivers/video/omap2/dss/core.c ++ * ++ * Copyright (C) 2009 Nokia Corporation ++ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com> ++ * ++ * Some code and ideas taken from drivers/video/omap/ driver ++ * by Imre Deak. ++ * ++ * This program is free software; you can redistribute it and/or modify it ++ * under the terms of the GNU General Public License version 2 as published by ++ * the Free Software Foundation. ++ * ++ * This program is distributed in the hope that it will be useful, but WITHOUT ++ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or ++ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for ++ * more details. ++ * ++ * You should have received a copy of the GNU General Public License along with ++ * this program. If not, see <http://www.gnu.org/licenses/>. ++ */ ++ ++#define DSS_SUBSYS_NAME "CORE" ++ ++#include <linux/kernel.h> ++#include <linux/module.h> ++#include <linux/clk.h> ++#include <linux/err.h> ++#include <linux/platform_device.h> ++#include <linux/seq_file.h> ++#include <linux/debugfs.h> ++#include <linux/io.h> ++#include <linux/device.h> ++ ++#include <mach/display.h> ++#include <mach/clock.h> ++ ++#include "dss.h" ++ ++static struct { ++ struct platform_device *pdev; ++ int ctx_id; ++ ++ struct clk *dss_ick; ++ struct clk *dss1_fck; ++ struct clk *dss2_fck; ++ struct clk *dss_54m_fck; ++ struct clk *dss_96m_fck; ++ unsigned num_clks_enabled; ++} core; ++ ++static void dss_clk_enable_all_no_ctx(void); ++static void dss_clk_disable_all_no_ctx(void); ++static void dss_clk_enable_no_ctx(enum dss_clock clks); ++static void dss_clk_disable_no_ctx(enum dss_clock clks); ++ ++static char *def_disp_name; ++module_param_named(def_disp, def_disp_name, charp, 0); ++MODULE_PARM_DESC(def_disp_name, "default display name"); ++ ++#ifdef DEBUG ++unsigned int dss_debug; ++module_param_named(debug, dss_debug, bool, 0644); ++#endif ++ ++/* CONTEXT */ ++static int dss_get_ctx_id(void) ++{ ++ struct omap_dss_board_info *pdata = core.pdev->dev.platform_data; ++ int r; ++ ++ if (!pdata->get_last_off_on_transaction_id) ++ return 0; ++ r = pdata->get_last_off_on_transaction_id(&core.pdev->dev); ++ if (r < 0) { ++ dev_err(&core.pdev->dev, "getting transaction ID failed, " ++ "will force context restore\n"); ++ r = -1; ++ } ++ return r; ++} ++ ++int dss_need_ctx_restore(void) ++{ ++ int id = dss_get_ctx_id(); ++ ++ if (id < 0 || id != core.ctx_id) { ++ DSSDBG("ctx id %d -> id %d\n", ++ core.ctx_id, id); ++ core.ctx_id = id; ++ return 1; ++ } else { ++ return 0; ++ } ++} ++ ++static void save_all_ctx(void) ++{ ++ DSSDBG("save context\n"); ++ ++ dss_clk_enable_no_ctx(DSS_CLK_ICK | DSS_CLK_FCK1); ++ ++ dss_save_context(); ++ dispc_save_context(); ++#ifdef CONFIG_OMAP2_DSS_DSI ++ dsi_save_context(); ++#endif ++ ++ dss_clk_disable_no_ctx(DSS_CLK_ICK | DSS_CLK_FCK1); ++} ++ ++static void restore_all_ctx(void) ++{ ++ DSSDBG("restore context\n"); ++ ++ dss_clk_enable_all_no_ctx(); ++ ++ dss_restore_context(); ++ dispc_restore_context(); ++#ifdef CONFIG_OMAP2_DSS_DSI ++ dsi_restore_context(); ++#endif ++ ++ dss_clk_disable_all_no_ctx(); ++} ++ ++/* CLOCKS */ ++void dss_dump_clocks(struct seq_file *s) ++{ ++ int i; ++ struct clk *clocks[5] = { ++ core.dss_ick, ++ core.dss1_fck, ++ core.dss2_fck, ++ core.dss_54m_fck, ++ core.dss_96m_fck ++ }; ++ ++ seq_printf(s, "- dss -\n"); ++ ++ seq_printf(s, "internal clk count\t%u\n", core.num_clks_enabled); ++ ++ for (i = 0; i < 5; i++) { ++ if (!clocks[i]) ++ continue; ++ seq_printf(s, "%-15s\t%lu\t%d\n", ++ clocks[i]->name, ++ clk_get_rate(clocks[i]), ++ clocks[i]->usecount); ++ } ++} ++ ++static int dss_get_clock(struct clk **clock, const char *clk_name) ++{ ++ struct clk *clk; ++ ++ clk = clk_get(&core.pdev->dev, clk_name); ++ ++ if (IS_ERR(clk)) { ++ DSSERR("can't get clock %s", clk_name); ++ return PTR_ERR(clk); ++ } ++ ++ *clock = clk; ++ ++ DSSDBG("clk %s, rate %ld\n", clk_name, clk_get_rate(clk)); ++ ++ return 0; ++} ++ ++static int dss_get_clocks(void) ++{ ++ int r; ++ ++ core.dss_ick = NULL; ++ core.dss1_fck = NULL; ++ core.dss2_fck = NULL; ++ core.dss_54m_fck = NULL; ++ core.dss_96m_fck = NULL; ++ ++ r = dss_get_clock(&core.dss_ick, "ick"); ++ if (r) ++ goto err; ++ ++ r = dss_get_clock(&core.dss1_fck, "dss1_fck"); ++ if (r) ++ goto err; ++ ++ r = dss_get_clock(&core.dss2_fck, "dss2_fck"); ++ if (r) ++ goto err; ++ ++ r = dss_get_clock(&core.dss_54m_fck, "tv_fck"); ++ if (r) ++ goto err; ++ ++ r = dss_get_clock(&core.dss_96m_fck, "video_fck"); ++ if (r) ++ goto err; ++ ++ return 0; ++ ++err: ++ if (core.dss_ick) ++ clk_put(core.dss_ick); ++ if (core.dss1_fck) ++ clk_put(core.dss1_fck); ++ if (core.dss2_fck) ++ clk_put(core.dss2_fck); ++ if (core.dss_54m_fck) ++ clk_put(core.dss_54m_fck); ++ if (core.dss_96m_fck) ++ clk_put(core.dss_96m_fck); ++ ++ return r; ++} ++ ++static void dss_put_clocks(void) ++{ ++ if (core.dss_96m_fck) ++ clk_put(core.dss_96m_fck); ++ clk_put(core.dss_54m_fck); ++ clk_put(core.dss1_fck); ++ clk_put(core.dss2_fck); ++ clk_put(core.dss_ick); ++} ++ ++unsigned long dss_clk_get_rate(enum dss_clock clk) ++{ ++ switch (clk) { ++ case DSS_CLK_ICK: ++ return clk_get_rate(core.dss_ick); ++ case DSS_CLK_FCK1: ++ return clk_get_rate(core.dss1_fck); ++ case DSS_CLK_FCK2: ++ return clk_get_rate(core.dss2_fck); ++ case DSS_CLK_54M: ++ return clk_get_rate(core.dss_54m_fck); ++ case DSS_CLK_96M: ++ return clk_get_rate(core.dss_96m_fck); ++ } ++ ++ BUG(); ++ return 0; ++} ++ ++static unsigned count_clk_bits(enum dss_clock clks) ++{ ++ unsigned num_clks = 0; ++ ++ if (clks & DSS_CLK_ICK) ++ ++num_clks; ++ if (clks & DSS_CLK_FCK1) ++ ++num_clks; ++ if (clks & DSS_CLK_FCK2) ++ ++num_clks; ++ if (clks & DSS_CLK_54M) ++ ++num_clks; ++ if (clks & DSS_CLK_96M) ++ ++num_clks; ++ ++ return num_clks; ++} ++ ++static void dss_clk_enable_no_ctx(enum dss_clock clks) ++{ ++ unsigned num_clks = count_clk_bits(clks); ++ ++ if (clks & DSS_CLK_ICK) ++ clk_enable(core.dss_ick); ++ if (clks & DSS_CLK_FCK1) ++ clk_enable(core.dss1_fck); ++ if (clks & DSS_CLK_FCK2) ++ clk_enable(core.dss2_fck); ++ if (clks & DSS_CLK_54M) ++ clk_enable(core.dss_54m_fck); ++ if (clks & DSS_CLK_96M) ++ clk_enable(core.dss_96m_fck); ++ ++ core.num_clks_enabled += num_clks; ++} ++ ++void dss_clk_enable(enum dss_clock clks) ++{ ++ dss_clk_enable_no_ctx(clks); ++ ++ if (cpu_is_omap34xx() && dss_need_ctx_restore()) ++ restore_all_ctx(); ++} ++ ++static void dss_clk_disable_no_ctx(enum dss_clock clks) ++{ ++ unsigned num_clks = count_clk_bits(clks); ++ ++ if (clks & DSS_CLK_ICK) ++ clk_disable(core.dss_ick); ++ if (clks & DSS_CLK_FCK1) ++ clk_disable(core.dss1_fck); ++ if (clks & DSS_CLK_FCK2) ++ clk_disable(core.dss2_fck); ++ if (clks & DSS_CLK_54M) ++ clk_disable(core.dss_54m_fck); ++ if (clks & DSS_CLK_96M) ++ clk_disable(core.dss_96m_fck); ++ ++ core.num_clks_enabled -= num_clks; ++} ++ ++void dss_clk_disable(enum dss_clock clks) ++{ ++ if (cpu_is_omap34xx()) { ++ unsigned num_clks = count_clk_bits(clks); ++ ++ BUG_ON(core.num_clks_enabled < num_clks); ++ ++ if (core.num_clks_enabled == num_clks) ++ save_all_ctx(); ++ } ++ ++ dss_clk_disable_no_ctx(clks); ++} ++ ++static void dss_clk_enable_all_no_ctx(void) ++{ ++ enum dss_clock clks; ++ ++ clks = DSS_CLK_ICK | DSS_CLK_FCK1 | DSS_CLK_FCK2 | DSS_CLK_54M; ++ if (cpu_is_omap34xx()) ++ clks |= DSS_CLK_96M; ++ dss_clk_enable_no_ctx(clks); ++} ++ ++static void dss_clk_disable_all_no_ctx(void) ++{ ++ enum dss_clock clks; ++ ++ clks = DSS_CLK_ICK | DSS_CLK_FCK1 | DSS_CLK_FCK2 | DSS_CLK_54M; ++ if (cpu_is_omap34xx()) ++ clks |= DSS_CLK_96M; ++ dss_clk_disable_no_ctx(clks); ++} ++ ++static void dss_clk_disable_all(void) ++{ ++ enum dss_clock clks; ++ ++ clks = DSS_CLK_ICK | DSS_CLK_FCK1 | DSS_CLK_FCK2 | DSS_CLK_54M; ++ if (cpu_is_omap34xx()) ++ clks |= DSS_CLK_96M; ++ dss_clk_disable(clks); ++} ++ ++/* DEBUGFS */ ++#if defined(CONFIG_DEBUG_FS) && defined(CONFIG_OMAP2_DSS_DEBUG_SUPPORT) ++static void dss_debug_dump_clocks(struct seq_file *s) ++{ ++ dss_dump_clocks(s); ++ dispc_dump_clocks(s); ++#ifdef CONFIG_OMAP2_DSS_DSI ++ dsi_dump_clocks(s); ++#endif ++} ++ ++static int dss_debug_show(struct seq_file *s, void *unused) ++{ ++ void (*func)(struct seq_file *) = s->private; ++ func(s); ++ return 0; ++} ++ ++static int dss_debug_open(struct inode *inode, struct file *file) ++{ ++ return single_open(file, dss_debug_show, inode->i_private); ++} ++ ++static const struct file_operations dss_debug_fops = { ++ .open = dss_debug_open, ++ .read = seq_read, ++ .llseek = seq_lseek, ++ .release = single_release, ++}; ++ ++static struct dentry *dss_debugfs_dir; ++ ++static int dss_initialize_debugfs(void) ++{ ++ dss_debugfs_dir = debugfs_create_dir("omapdss", NULL); ++ if (IS_ERR(dss_debugfs_dir)) { ++ int err = PTR_ERR(dss_debugfs_dir); ++ dss_debugfs_dir = NULL; ++ return err; ++ } ++ ++ debugfs_create_file("clk", S_IRUGO, dss_debugfs_dir, ++ &dss_debug_dump_clocks, &dss_debug_fops); ++ ++ debugfs_create_file("dss", S_IRUGO, dss_debugfs_dir, ++ &dss_dump_regs, &dss_debug_fops); ++ debugfs_create_file("dispc", S_IRUGO, dss_debugfs_dir, ++ &dispc_dump_regs, &dss_debug_fops); ++#ifdef CONFIG_OMAP2_DSS_RFBI ++ debugfs_create_file("rfbi", S_IRUGO, dss_debugfs_dir, ++ &rfbi_dump_regs, &dss_debug_fops); ++#endif ++#ifdef CONFIG_OMAP2_DSS_DSI ++ debugfs_create_file("dsi", S_IRUGO, dss_debugfs_dir, ++ &dsi_dump_regs, &dss_debug_fops); ++#endif ++#ifdef CONFIG_OMAP2_DSS_VENC ++ debugfs_create_file("venc", S_IRUGO, dss_debugfs_dir, ++ &venc_dump_regs, &dss_debug_fops); ++#endif ++ return 0; ++} ++ ++static void dss_uninitialize_debugfs(void) ++{ ++ if (dss_debugfs_dir) ++ debugfs_remove_recursive(dss_debugfs_dir); ++} ++#endif /* CONFIG_DEBUG_FS && CONFIG_OMAP2_DSS_DEBUG_SUPPORT */ ++ ++/* PLATFORM DEVICE */ ++static int omap_dss_probe(struct platform_device *pdev) ++{ ++ struct omap_dss_board_info *pdata = pdev->dev.platform_data; ++ int skip_init = 0; ++ int r; ++ int i; ++ ++ core.pdev = pdev; ++ ++ dss_init_overlay_managers(pdev); ++ dss_init_overlays(pdev); ++ ++ r = dss_get_clocks(); ++ if (r) ++ goto fail0; ++ ++ dss_clk_enable_all_no_ctx(); ++ ++ core.ctx_id = dss_get_ctx_id(); ++ DSSDBG("initial ctx id %u\n", core.ctx_id); ++ ++#ifdef CONFIG_FB_OMAP_BOOTLOADER_INIT ++ /* DISPC_CONTROL */ ++ if (omap_readl(0x48050440) & 1) /* LCD enabled? */ ++ skip_init = 1; ++#endif ++ ++ r = dss_init(skip_init); ++ if (r) { ++ DSSERR("Failed to initialize DSS\n"); ++ goto fail0; ++ } ++ ++#ifdef CONFIG_OMAP2_DSS_RFBI ++ r = rfbi_init(); ++ if (r) { ++ DSSERR("Failed to initialize rfbi\n"); ++ goto fail0; ++ } ++#endif ++ ++ r = dpi_init(); ++ if (r) { ++ DSSERR("Failed to initialize dpi\n"); ++ goto fail0; ++ } ++ ++ r = dispc_init(); ++ if (r) { ++ DSSERR("Failed to initialize dispc\n"); ++ goto fail0; ++ } ++#ifdef CONFIG_OMAP2_DSS_VENC ++ r = venc_init(pdev); ++ if (r) { ++ DSSERR("Failed to initialize venc\n"); ++ goto fail0; ++ } ++#endif ++ if (cpu_is_omap34xx()) { ++#ifdef CONFIG_OMAP2_DSS_SDI ++ r = sdi_init(skip_init); ++ if (r) { ++ DSSERR("Failed to initialize SDI\n"); ++ goto fail0; ++ } ++#endif ++#ifdef CONFIG_OMAP2_DSS_DSI ++ r = dsi_init(pdev); ++ if (r) { ++ DSSERR("Failed to initialize DSI\n"); ++ goto fail0; ++ } ++#endif ++ } ++ ++#if defined(CONFIG_DEBUG_FS) && defined(CONFIG_OMAP2_DSS_DEBUG_SUPPORT) ++ r = dss_initialize_debugfs(); ++ if (r) ++ goto fail0; ++#endif ++ ++ for (i = 0; i < pdata->num_devices; ++i) { ++ struct omap_dss_device *dssdev = pdata->devices[i]; ++ ++ r = omap_dss_register_device(dssdev); ++ if (r) ++ DSSERR("device reg failed %d\n", i); ++ ++ if (def_disp_name && strcmp(def_disp_name, dssdev->name) == 0) ++ pdata->default_device = dssdev; ++ } ++ ++ dss_clk_disable_all(); ++ ++ return 0; ++ ++ /* XXX fail correctly */ ++fail0: ++ return r; ++} ++ ++static int omap_dss_remove(struct platform_device *pdev) ++{ ++ struct omap_dss_board_info *pdata = pdev->dev.platform_data; ++ int i; ++ int c; ++ ++#if defined(CONFIG_DEBUG_FS) && defined(CONFIG_OMAP2_DSS_DEBUG_SUPPORT) ++ dss_uninitialize_debugfs(); ++#endif ++ ++#ifdef CONFIG_OMAP2_DSS_VENC ++ venc_exit(); ++#endif ++ dispc_exit(); ++ dpi_exit(); ++#ifdef CONFIG_OMAP2_DSS_RFBI ++ rfbi_exit(); ++#endif ++ if (cpu_is_omap34xx()) { ++#ifdef CONFIG_OMAP2_DSS_DSI ++ dsi_exit(); ++#endif ++#ifdef CONFIG_OMAP2_DSS_SDI ++ sdi_exit(); ++#endif ++ } ++ ++ dss_exit(); ++ ++ /* these should be removed at some point */ ++ c = core.dss_ick->usecount; ++ if (c > 0) { ++ DSSERR("warning: dss_ick usecount %d, disabling\n", c); ++ while (c-- > 0) ++ clk_disable(core.dss_ick); ++ } ++ ++ c = core.dss1_fck->usecount; ++ if (c > 0) { ++ DSSERR("warning: dss1_fck usecount %d, disabling\n", c); ++ while (c-- > 0) ++ clk_disable(core.dss1_fck); ++ } ++ ++ c = core.dss2_fck->usecount; ++ if (c > 0) { ++ DSSERR("warning: dss2_fck usecount %d, disabling\n", c); ++ while (c-- > 0) ++ clk_disable(core.dss2_fck); ++ } ++ ++ c = core.dss_54m_fck->usecount; ++ if (c > 0) { ++ DSSERR("warning: dss_54m_fck usecount %d, disabling\n", c); ++ while (c-- > 0) ++ clk_disable(core.dss_54m_fck); ++ } ++ ++ if (core.dss_96m_fck) { ++ c = core.dss_96m_fck->usecount; ++ if (c > 0) { ++ DSSERR("warning: dss_96m_fck usecount %d, disabling\n", ++ c); ++ while (c-- > 0) ++ clk_disable(core.dss_96m_fck); ++ } ++ } ++ ++ dss_put_clocks(); ++ ++ dss_uninit_overlays(pdev); ++ dss_uninit_overlay_managers(pdev); ++ ++ for (i = 0; i < pdata->num_devices; ++i) ++ omap_dss_unregister_device(pdata->devices[i]); ++ ++ return 0; ++} ++ ++static void omap_dss_shutdown(struct platform_device *pdev) ++{ ++ DSSDBG("shutdown\n"); ++} ++ ++static int omap_dss_suspend(struct platform_device *pdev, pm_message_t state) ++{ ++ DSSDBG("suspend %d\n", state.event); ++ ++ return dss_suspend_all_devices(); ++} ++ ++static int omap_dss_resume(struct platform_device *pdev) ++{ ++ DSSDBG("resume\n"); ++ ++ return dss_resume_all_devices(); ++} ++ ++static struct platform_driver omap_dss_driver = { ++ .probe = omap_dss_probe, ++ .remove = omap_dss_remove, ++ .shutdown = omap_dss_shutdown, ++ .suspend = omap_dss_suspend, ++ .resume = omap_dss_resume, ++ .driver = { ++ .name = "omapdss", ++ .owner = THIS_MODULE, ++ }, ++}; ++ ++/* BUS */ ++static int dss_bus_match(struct device *dev, struct device_driver *driver) ++{ ++ struct omap_dss_device *dssdev = to_dss_device(dev); ++ ++ DSSDBG("bus_match. dev %s/%s, drv %s\n", ++ dev_name(dev), dssdev->driver_name, driver->name); ++ ++ return strcmp(dssdev->driver_name, driver->name) == 0; ++} ++ ++static ssize_t device_name_show(struct device *dev, ++ struct device_attribute *attr, char *buf) ++{ ++ struct omap_dss_device *dssdev = to_dss_device(dev); ++ return snprintf(buf, PAGE_SIZE, "%s\n", ++ dssdev->name ? ++ dssdev->name : ""); ++} ++ ++static struct device_attribute default_dev_attrs[] = { ++ __ATTR(name, S_IRUGO, device_name_show, NULL), ++ __ATTR_NULL, ++}; ++ ++static ssize_t driver_name_show(struct device_driver *drv, char *buf) ++{ ++ struct omap_dss_driver *dssdrv = to_dss_driver(drv); ++ return snprintf(buf, PAGE_SIZE, "%s\n", ++ dssdrv->driver.name ? ++ dssdrv->driver.name : ""); ++} ++static struct driver_attribute default_drv_attrs[] = { ++ __ATTR(name, S_IRUGO, driver_name_show, NULL), ++ __ATTR_NULL, ++}; ++ ++static struct bus_type dss_bus_type = { ++ .name = "omapdss", ++ .match = dss_bus_match, ++ .dev_attrs = default_dev_attrs, ++ .drv_attrs = default_drv_attrs, ++}; ++ ++static void dss_bus_release(struct device *dev) ++{ ++ DSSDBG("bus_release\n"); ++} ++ ++static struct device dss_bus = { ++ .release = dss_bus_release, ++}; ++ ++struct bus_type *dss_get_bus(void) ++{ ++ return &dss_bus_type; ++} ++ ++/* DRIVER */ ++static int dss_driver_probe(struct device *dev) ++{ ++ int r; ++ struct omap_dss_driver *dssdrv = to_dss_driver(dev->driver); ++ struct omap_dss_device *dssdev = to_dss_device(dev); ++ struct omap_dss_board_info *pdata = core.pdev->dev.platform_data; ++ bool force; ++ ++ DSSDBG("driver_probe: dev %s/%s, drv %s\n", ++ dev_name(dev), dssdev->driver_name, ++ dssdrv->driver.name); ++ ++ dss_init_device(core.pdev, dssdev); ++ ++ /* skip this if the device is behind a ctrl */ ++ if (!dssdev->panel.ctrl) { ++ force = pdata->default_device == dssdev; ++ dss_recheck_connections(dssdev, force); ++ } ++ ++ r = dssdrv->probe(dssdev); ++ ++ if (r) { ++ DSSERR("driver probe failed: %d\n", r); ++ return r; ++ } ++ ++ DSSDBG("probe done for device %s\n", dev_name(dev)); ++ ++ dssdev->driver = dssdrv; ++ ++ return 0; ++} ++ ++static int dss_driver_remove(struct device *dev) ++{ ++ struct omap_dss_driver *dssdrv = to_dss_driver(dev->driver); ++ struct omap_dss_device *dssdev = to_dss_device(dev); ++ ++ DSSDBG("driver_remove: dev %s/%s\n", dev_name(dev), ++ dssdev->driver_name); ++ ++ dssdrv->remove(dssdev); ++ ++ dss_uninit_device(core.pdev, dssdev); ++ ++ dssdev->driver = NULL; ++ ++ return 0; ++} ++ ++int omap_dss_register_driver(struct omap_dss_driver *dssdriver) ++{ ++ dssdriver->driver.bus = &dss_bus_type; ++ dssdriver->driver.probe = dss_driver_probe; ++ dssdriver->driver.remove = dss_driver_remove; ++ return driver_register(&dssdriver->driver); ++} ++EXPORT_SYMBOL(omap_dss_register_driver); ++ ++void omap_dss_unregister_driver(struct omap_dss_driver *dssdriver) ++{ ++ driver_unregister(&dssdriver->driver); ++} ++EXPORT_SYMBOL(omap_dss_unregister_driver); ++ ++/* DEVICE */ ++static void reset_device(struct device *dev, int check) ++{ ++ u8 *dev_p = (u8 *)dev; ++ u8 *dev_end = dev_p + sizeof(*dev); ++ void *saved_pdata; ++ ++ saved_pdata = dev->platform_data; ++ if (check) { ++ /* ++ * Check if there is any other setting than platform_data ++ * in struct device; warn that these will be reset by our ++ * init. ++ */ ++ dev->platform_data = NULL; ++ while (dev_p < dev_end) { ++ if (*dev_p) { ++ WARN("%s: struct device fields will be " ++ "discarded\n", ++ __func__); ++ break; ++ } ++ dev_p++; ++ } ++ } ++ memset(dev, 0, sizeof(*dev)); ++ dev->platform_data = saved_pdata; ++} ++ ++ ++static void omap_dss_dev_release(struct device *dev) ++{ ++ reset_device(dev, 0); ++} ++ ++int omap_dss_register_device(struct omap_dss_device *dssdev) ++{ ++ static int dev_num; ++ static int panel_num; ++ int r; ++ ++ WARN_ON(!dssdev->driver_name); ++ ++ reset_device(&dssdev->dev, 1); ++ dssdev->dev.bus = &dss_bus_type; ++ dssdev->dev.parent = &dss_bus; ++ dssdev->dev.release = omap_dss_dev_release; ++ dev_set_name(&dssdev->dev, "display%d", dev_num++); ++ r = device_register(&dssdev->dev); ++ if (r) ++ return r; ++ ++ if (dssdev->ctrl.panel) { ++ struct omap_dss_device *panel = dssdev->ctrl.panel; ++ ++ panel->panel.ctrl = dssdev; ++ ++ reset_device(&panel->dev, 1); ++ panel->dev.bus = &dss_bus_type; ++ panel->dev.parent = &dssdev->dev; ++ panel->dev.release = omap_dss_dev_release; ++ dev_set_name(&panel->dev, "panel%d", panel_num++); ++ r = device_register(&panel->dev); ++ if (r) ++ return r; ++ } ++ ++ return 0; ++} ++ ++void omap_dss_unregister_device(struct omap_dss_device *dssdev) ++{ ++ device_unregister(&dssdev->dev); ++ ++ if (dssdev->ctrl.panel) { ++ struct omap_dss_device *panel = dssdev->ctrl.panel; ++ device_unregister(&panel->dev); ++ } ++} ++ ++/* BUS */ ++static int omap_dss_bus_register(void) ++{ ++ int r; ++ ++ r = bus_register(&dss_bus_type); ++ if (r) { ++ DSSERR("bus register failed\n"); ++ return r; ++ } ++ ++ dev_set_name(&dss_bus, "omapdss"); ++ r = device_register(&dss_bus); ++ if (r) { ++ DSSERR("bus driver register failed\n"); ++ bus_unregister(&dss_bus_type); ++ return r; ++ } ++ ++ return 0; ++} ++ ++/* INIT */ ++ ++#ifdef CONFIG_OMAP2_DSS_MODULE ++static void omap_dss_bus_unregister(void) ++{ ++ device_unregister(&dss_bus); ++ ++ bus_unregister(&dss_bus_type); ++} ++ ++static int __init omap_dss_init(void) ++{ ++ int r; ++ ++ r = omap_dss_bus_register(); ++ if (r) ++ return r; ++ ++ r = platform_driver_register(&omap_dss_driver); ++ if (r) { ++ omap_dss_bus_unregister(); ++ return r; ++ } ++ ++ return 0; ++} ++ ++static void __exit omap_dss_exit(void) ++{ ++ platform_driver_unregister(&omap_dss_driver); ++ ++ omap_dss_bus_unregister(); ++} ++ ++module_init(omap_dss_init); ++module_exit(omap_dss_exit); ++#else ++static int __init omap_dss_init(void) ++{ ++ return omap_dss_bus_register(); ++} ++ ++static int __init omap_dss_init2(void) ++{ ++ return platform_driver_register(&omap_dss_driver); ++} ++ ++core_initcall(omap_dss_init); ++device_initcall(omap_dss_init2); ++#endif ++ ++MODULE_AUTHOR("Tomi Valkeinen <tomi.valkeinen@nokia.com>"); ++MODULE_DESCRIPTION("OMAP2/3 Display Subsystem"); ++MODULE_LICENSE("GPL v2"); ++ +diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c +new file mode 100644 +index 0000000..d648475 +--- /dev/null ++++ b/drivers/video/omap2/dss/dispc.c +@@ -0,0 +1,3182 @@ ++/* ++ * linux/drivers/video/omap2/dss/dispc.c ++ * ++ * Copyright (C) 2009 Nokia Corporation ++ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com> ++ * ++ * Some code and ideas taken from drivers/video/omap/ driver ++ * by Imre Deak. ++ * ++ * This program is free software; you can redistribute it and/or modify it ++ * under the terms of the GNU General Public License version 2 as published by ++ * the Free Software Foundation. ++ * ++ * This program is distributed in the hope that it will be useful, but WITHOUT ++ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or ++ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for ++ * more details. ++ * ++ * You should have received a copy of the GNU General Public License along with ++ * this program. If not, see <http://www.gnu.org/licenses/>. ++ */ ++ ++#define DSS_SUBSYS_NAME "DISPC" ++ ++#include <linux/kernel.h> ++#include <linux/dma-mapping.h> ++#include <linux/vmalloc.h> ++#include <linux/clk.h> ++#include <linux/io.h> ++#include <linux/jiffies.h> ++#include <linux/seq_file.h> ++#include <linux/delay.h> ++#include <linux/workqueue.h> ++ ++#include <mach/sram.h> ++#include <mach/board.h> ++#include <mach/clock.h> ++ ++#include <mach/display.h> ++ ++#include "dss.h" ++ ++/* DISPC */ ++#define DISPC_BASE 0x48050400 ++ ++#define DISPC_SZ_REGS SZ_1K ++ ++struct dispc_reg { u16 idx; }; ++ ++#define DISPC_REG(idx) ((const struct dispc_reg) { idx }) ++ ++/* DISPC common */ ++#define DISPC_REVISION DISPC_REG(0x0000) ++#define DISPC_SYSCONFIG DISPC_REG(0x0010) ++#define DISPC_SYSSTATUS DISPC_REG(0x0014) ++#define DISPC_IRQSTATUS DISPC_REG(0x0018) ++#define DISPC_IRQENABLE DISPC_REG(0x001C) ++#define DISPC_CONTROL DISPC_REG(0x0040) ++#define DISPC_CONFIG DISPC_REG(0x0044) ++#define DISPC_CAPABLE DISPC_REG(0x0048) ++#define DISPC_DEFAULT_COLOR0 DISPC_REG(0x004C) ++#define DISPC_DEFAULT_COLOR1 DISPC_REG(0x0050) ++#define DISPC_TRANS_COLOR0 DISPC_REG(0x0054) ++#define DISPC_TRANS_COLOR1 DISPC_REG(0x0058) ++#define DISPC_LINE_STATUS DISPC_REG(0x005C) ++#define DISPC_LINE_NUMBER DISPC_REG(0x0060) ++#define DISPC_TIMING_H DISPC_REG(0x0064) ++#define DISPC_TIMING_V DISPC_REG(0x0068) ++#define DISPC_POL_FREQ DISPC_REG(0x006C) ++#define DISPC_DIVISOR DISPC_REG(0x0070) ++#define DISPC_GLOBAL_ALPHA DISPC_REG(0x0074) ++#define DISPC_SIZE_DIG DISPC_REG(0x0078) ++#define DISPC_SIZE_LCD DISPC_REG(0x007C) ++ ++/* DISPC GFX plane */ ++#define DISPC_GFX_BA0 DISPC_REG(0x0080) ++#define DISPC_GFX_BA1 DISPC_REG(0x0084) ++#define DISPC_GFX_POSITION DISPC_REG(0x0088) ++#define DISPC_GFX_SIZE DISPC_REG(0x008C) ++#define DISPC_GFX_ATTRIBUTES DISPC_REG(0x00A0) ++#define DISPC_GFX_FIFO_THRESHOLD DISPC_REG(0x00A4) ++#define DISPC_GFX_FIFO_SIZE_STATUS DISPC_REG(0x00A8) ++#define DISPC_GFX_ROW_INC DISPC_REG(0x00AC) ++#define DISPC_GFX_PIXEL_INC DISPC_REG(0x00B0) ++#define DISPC_GFX_WINDOW_SKIP DISPC_REG(0x00B4) ++#define DISPC_GFX_TABLE_BA DISPC_REG(0x00B8) ++ ++#define DISPC_DATA_CYCLE1 DISPC_REG(0x01D4) ++#define DISPC_DATA_CYCLE2 DISPC_REG(0x01D8) ++#define DISPC_DATA_CYCLE3 DISPC_REG(0x01DC) ++ ++#define DISPC_CPR_COEF_R DISPC_REG(0x0220) ++#define DISPC_CPR_COEF_G DISPC_REG(0x0224) ++#define DISPC_CPR_COEF_B DISPC_REG(0x0228) ++ ++#define DISPC_GFX_PRELOAD DISPC_REG(0x022C) ++ ++/* DISPC Video plane, n = 0 for VID1 and n = 1 for VID2 */ ++#define DISPC_VID_REG(n, idx) DISPC_REG(0x00BC + (n)*0x90 + idx) ++ ++#define DISPC_VID_BA0(n) DISPC_VID_REG(n, 0x0000) ++#define DISPC_VID_BA1(n) DISPC_VID_REG(n, 0x0004) ++#define DISPC_VID_POSITION(n) DISPC_VID_REG(n, 0x0008) ++#define DISPC_VID_SIZE(n) DISPC_VID_REG(n, 0x000C) ++#define DISPC_VID_ATTRIBUTES(n) DISPC_VID_REG(n, 0x0010) ++#define DISPC_VID_FIFO_THRESHOLD(n) DISPC_VID_REG(n, 0x0014) ++#define DISPC_VID_FIFO_SIZE_STATUS(n) DISPC_VID_REG(n, 0x0018) ++#define DISPC_VID_ROW_INC(n) DISPC_VID_REG(n, 0x001C) ++#define DISPC_VID_PIXEL_INC(n) DISPC_VID_REG(n, 0x0020) ++#define DISPC_VID_FIR(n) DISPC_VID_REG(n, 0x0024) ++#define DISPC_VID_PICTURE_SIZE(n) DISPC_VID_REG(n, 0x0028) ++#define DISPC_VID_ACCU0(n) DISPC_VID_REG(n, 0x002C) ++#define DISPC_VID_ACCU1(n) DISPC_VID_REG(n, 0x0030) ++ ++/* coef index i = {0, 1, 2, 3, 4, 5, 6, 7} */ ++#define DISPC_VID_FIR_COEF_H(n, i) DISPC_REG(0x00F0 + (n)*0x90 + (i)*0x8) ++/* coef index i = {0, 1, 2, 3, 4, 5, 6, 7} */ ++#define DISPC_VID_FIR_COEF_HV(n, i) DISPC_REG(0x00F4 + (n)*0x90 + (i)*0x8) ++/* coef index i = {0, 1, 2, 3, 4} */ ++#define DISPC_VID_CONV_COEF(n, i) DISPC_REG(0x0130 + (n)*0x90 + (i)*0x4) ++/* coef index i = {0, 1, 2, 3, 4, 5, 6, 7} */ ++#define DISPC_VID_FIR_COEF_V(n, i) DISPC_REG(0x01E0 + (n)*0x20 + (i)*0x4) ++ ++#define DISPC_VID_PRELOAD(n) DISPC_REG(0x230 + (n)*0x04) ++ ++ ++#define DISPC_IRQ_MASK_ERROR (DISPC_IRQ_GFX_FIFO_UNDERFLOW | \ ++ DISPC_IRQ_OCP_ERR | \ ++ DISPC_IRQ_VID1_FIFO_UNDERFLOW | \ ++ DISPC_IRQ_VID2_FIFO_UNDERFLOW | \ ++ DISPC_IRQ_SYNC_LOST | \ ++ DISPC_IRQ_SYNC_LOST_DIGIT) ++ ++#define DISPC_MAX_NR_ISRS 8 ++ ++struct omap_dispc_isr_data { ++ omap_dispc_isr_t isr; ++ void *arg; ++ u32 mask; ++}; ++ ++#define REG_GET(idx, start, end) \ ++ FLD_GET(dispc_read_reg(idx), start, end) ++ ++#define REG_FLD_MOD(idx, val, start, end) \ ++ dispc_write_reg(idx, FLD_MOD(dispc_read_reg(idx), val, start, end)) ++ ++static const struct dispc_reg dispc_reg_att[] = { DISPC_GFX_ATTRIBUTES, ++ DISPC_VID_ATTRIBUTES(0), ++ DISPC_VID_ATTRIBUTES(1) }; ++ ++static struct { ++ void __iomem *base; ++ ++ struct clk *dpll4_m4_ck; ++ ++ unsigned long cache_req_pck; ++ unsigned long cache_prate; ++ struct dispc_clock_info cache_cinfo; ++ ++ u32 fifo_size[3]; ++ ++ spinlock_t irq_lock; ++ u32 irq_error_mask; ++ struct omap_dispc_isr_data registered_isr[DISPC_MAX_NR_ISRS]; ++ u32 error_irqs; ++ struct work_struct error_work; ++ ++ u32 ctx[DISPC_SZ_REGS / sizeof(u32)]; ++} dispc; ++ ++static void _omap_dispc_set_irqs(void); ++ ++static inline void dispc_write_reg(const struct dispc_reg idx, u32 val) ++{ ++ __raw_writel(val, dispc.base + idx.idx); ++} ++ ++static inline u32 dispc_read_reg(const struct dispc_reg idx) ++{ ++ return __raw_readl(dispc.base + idx.idx); ++} ++ ++#define SR(reg) \ ++ dispc.ctx[(DISPC_##reg).idx / sizeof(u32)] = dispc_read_reg(DISPC_##reg) ++#define RR(reg) \ ++ dispc_write_reg(DISPC_##reg, dispc.ctx[(DISPC_##reg).idx / sizeof(u32)]) ++ ++void dispc_save_context(void) ++{ ++ if (cpu_is_omap24xx()) ++ return; ++ ++ SR(SYSCONFIG); ++ SR(IRQENABLE); ++ SR(CONTROL); ++ SR(CONFIG); ++ SR(DEFAULT_COLOR0); ++ SR(DEFAULT_COLOR1); ++ SR(TRANS_COLOR0); ++ SR(TRANS_COLOR1); ++ SR(LINE_NUMBER); ++ SR(TIMING_H); ++ SR(TIMING_V); ++ SR(POL_FREQ); ++ SR(DIVISOR); ++ SR(GLOBAL_ALPHA); ++ SR(SIZE_DIG); ++ SR(SIZE_LCD); ++ ++ SR(GFX_BA0); ++ SR(GFX_BA1); ++ SR(GFX_POSITION); ++ SR(GFX_SIZE); ++ SR(GFX_ATTRIBUTES); ++ SR(GFX_FIFO_THRESHOLD); ++ SR(GFX_ROW_INC); ++ SR(GFX_PIXEL_INC); ++ SR(GFX_WINDOW_SKIP); ++ SR(GFX_TABLE_BA); ++ ++ SR(DATA_CYCLE1); ++ SR(DATA_CYCLE2); ++ SR(DATA_CYCLE3); ++ ++ SR(CPR_COEF_R); ++ SR(CPR_COEF_G); ++ SR(CPR_COEF_B); ++ ++ SR(GFX_PRELOAD); ++ ++ /* VID1 */ ++ SR(VID_BA0(0)); ++ SR(VID_BA1(0)); ++ SR(VID_POSITION(0)); ++ SR(VID_SIZE(0)); ++ SR(VID_ATTRIBUTES(0)); ++ SR(VID_FIFO_THRESHOLD(0)); ++ SR(VID_ROW_INC(0)); ++ SR(VID_PIXEL_INC(0)); ++ SR(VID_FIR(0)); ++ SR(VID_PICTURE_SIZE(0)); ++ SR(VID_ACCU0(0)); ++ SR(VID_ACCU1(0)); ++ ++ SR(VID_FIR_COEF_H(0, 0)); ++ SR(VID_FIR_COEF_H(0, 1)); ++ SR(VID_FIR_COEF_H(0, 2)); ++ SR(VID_FIR_COEF_H(0, 3)); ++ SR(VID_FIR_COEF_H(0, 4)); ++ SR(VID_FIR_COEF_H(0, 5)); ++ SR(VID_FIR_COEF_H(0, 6)); ++ SR(VID_FIR_COEF_H(0, 7)); ++ ++ SR(VID_FIR_COEF_HV(0, 0)); ++ SR(VID_FIR_COEF_HV(0, 1)); ++ SR(VID_FIR_COEF_HV(0, 2)); ++ SR(VID_FIR_COEF_HV(0, 3)); ++ SR(VID_FIR_COEF_HV(0, 4)); ++ SR(VID_FIR_COEF_HV(0, 5)); ++ SR(VID_FIR_COEF_HV(0, 6)); ++ SR(VID_FIR_COEF_HV(0, 7)); ++ ++ SR(VID_CONV_COEF(0, 0)); ++ SR(VID_CONV_COEF(0, 1)); ++ SR(VID_CONV_COEF(0, 2)); ++ SR(VID_CONV_COEF(0, 3)); ++ SR(VID_CONV_COEF(0, 4)); ++ ++ SR(VID_FIR_COEF_V(0, 0)); ++ SR(VID_FIR_COEF_V(0, 1)); ++ SR(VID_FIR_COEF_V(0, 2)); ++ SR(VID_FIR_COEF_V(0, 3)); ++ SR(VID_FIR_COEF_V(0, 4)); ++ SR(VID_FIR_COEF_V(0, 5)); ++ SR(VID_FIR_COEF_V(0, 6)); ++ SR(VID_FIR_COEF_V(0, 7)); ++ ++ SR(VID_PRELOAD(0)); ++ ++ /* VID2 */ ++ SR(VID_BA0(1)); ++ SR(VID_BA1(1)); ++ SR(VID_POSITION(1)); ++ SR(VID_SIZE(1)); ++ SR(VID_ATTRIBUTES(1)); ++ SR(VID_FIFO_THRESHOLD(1)); ++ SR(VID_ROW_INC(1)); ++ SR(VID_PIXEL_INC(1)); ++ SR(VID_FIR(1)); ++ SR(VID_PICTURE_SIZE(1)); ++ SR(VID_ACCU0(1)); ++ SR(VID_ACCU1(1)); ++ ++ SR(VID_FIR_COEF_H(1, 0)); ++ SR(VID_FIR_COEF_H(1, 1)); ++ SR(VID_FIR_COEF_H(1, 2)); ++ SR(VID_FIR_COEF_H(1, 3)); ++ SR(VID_FIR_COEF_H(1, 4)); ++ SR(VID_FIR_COEF_H(1, 5)); ++ SR(VID_FIR_COEF_H(1, 6)); ++ SR(VID_FIR_COEF_H(1, 7)); ++ ++ SR(VID_FIR_COEF_HV(1, 0)); ++ SR(VID_FIR_COEF_HV(1, 1)); ++ SR(VID_FIR_COEF_HV(1, 2)); ++ SR(VID_FIR_COEF_HV(1, 3)); ++ SR(VID_FIR_COEF_HV(1, 4)); ++ SR(VID_FIR_COEF_HV(1, 5)); ++ SR(VID_FIR_COEF_HV(1, 6)); ++ SR(VID_FIR_COEF_HV(1, 7)); ++ ++ SR(VID_CONV_COEF(1, 0)); ++ SR(VID_CONV_COEF(1, 1)); ++ SR(VID_CONV_COEF(1, 2)); ++ SR(VID_CONV_COEF(1, 3)); ++ SR(VID_CONV_COEF(1, 4)); ++ ++ SR(VID_FIR_COEF_V(1, 0)); ++ SR(VID_FIR_COEF_V(1, 1)); ++ SR(VID_FIR_COEF_V(1, 2)); ++ SR(VID_FIR_COEF_V(1, 3)); ++ SR(VID_FIR_COEF_V(1, 4)); ++ SR(VID_FIR_COEF_V(1, 5)); ++ SR(VID_FIR_COEF_V(1, 6)); ++ SR(VID_FIR_COEF_V(1, 7)); ++ ++ SR(VID_PRELOAD(1)); ++} ++ ++void dispc_restore_context(void) ++{ ++ RR(SYSCONFIG); ++ RR(IRQENABLE); ++ /*RR(CONTROL);*/ ++ RR(CONFIG); ++ RR(DEFAULT_COLOR0); ++ RR(DEFAULT_COLOR1); ++ RR(TRANS_COLOR0); ++ RR(TRANS_COLOR1); ++ RR(LINE_NUMBER); ++ RR(TIMING_H); ++ RR(TIMING_V); ++ RR(POL_FREQ); ++ RR(DIVISOR); ++ RR(GLOBAL_ALPHA); ++ RR(SIZE_DIG); ++ RR(SIZE_LCD); ++ ++ RR(GFX_BA0); ++ RR(GFX_BA1); ++ RR(GFX_POSITION); ++ RR(GFX_SIZE); ++ RR(GFX_ATTRIBUTES); ++ RR(GFX_FIFO_THRESHOLD); ++ RR(GFX_ROW_INC); ++ RR(GFX_PIXEL_INC); ++ RR(GFX_WINDOW_SKIP); ++ RR(GFX_TABLE_BA); ++ ++ RR(DATA_CYCLE1); ++ RR(DATA_CYCLE2); ++ RR(DATA_CYCLE3); ++ ++ RR(CPR_COEF_R); ++ RR(CPR_COEF_G); ++ RR(CPR_COEF_B); ++ ++ RR(GFX_PRELOAD); ++ ++ /* VID1 */ ++ RR(VID_BA0(0)); ++ RR(VID_BA1(0)); ++ RR(VID_POSITION(0)); ++ RR(VID_SIZE(0)); ++ RR(VID_ATTRIBUTES(0)); ++ RR(VID_FIFO_THRESHOLD(0)); ++ RR(VID_ROW_INC(0)); ++ RR(VID_PIXEL_INC(0)); ++ RR(VID_FIR(0)); ++ RR(VID_PICTURE_SIZE(0)); ++ RR(VID_ACCU0(0)); ++ RR(VID_ACCU1(0)); ++ ++ RR(VID_FIR_COEF_H(0, 0)); ++ RR(VID_FIR_COEF_H(0, 1)); ++ RR(VID_FIR_COEF_H(0, 2)); ++ RR(VID_FIR_COEF_H(0, 3)); ++ RR(VID_FIR_COEF_H(0, 4)); ++ RR(VID_FIR_COEF_H(0, 5)); ++ RR(VID_FIR_COEF_H(0, 6)); ++ RR(VID_FIR_COEF_H(0, 7)); ++ ++ RR(VID_FIR_COEF_HV(0, 0)); ++ RR(VID_FIR_COEF_HV(0, 1)); ++ RR(VID_FIR_COEF_HV(0, 2)); ++ RR(VID_FIR_COEF_HV(0, 3)); ++ RR(VID_FIR_COEF_HV(0, 4)); ++ RR(VID_FIR_COEF_HV(0, 5)); ++ RR(VID_FIR_COEF_HV(0, 6)); ++ RR(VID_FIR_COEF_HV(0, 7)); ++ ++ RR(VID_CONV_COEF(0, 0)); ++ RR(VID_CONV_COEF(0, 1)); ++ RR(VID_CONV_COEF(0, 2)); ++ RR(VID_CONV_COEF(0, 3)); ++ RR(VID_CONV_COEF(0, 4)); ++ ++ RR(VID_FIR_COEF_V(0, 0)); ++ RR(VID_FIR_COEF_V(0, 1)); ++ RR(VID_FIR_COEF_V(0, 2)); ++ RR(VID_FIR_COEF_V(0, 3)); ++ RR(VID_FIR_COEF_V(0, 4)); ++ RR(VID_FIR_COEF_V(0, 5)); ++ RR(VID_FIR_COEF_V(0, 6)); ++ RR(VID_FIR_COEF_V(0, 7)); ++ ++ RR(VID_PRELOAD(0)); ++ ++ /* VID2 */ ++ RR(VID_BA0(1)); ++ RR(VID_BA1(1)); ++ RR(VID_POSITION(1)); ++ RR(VID_SIZE(1)); ++ RR(VID_ATTRIBUTES(1)); ++ RR(VID_FIFO_THRESHOLD(1)); ++ RR(VID_ROW_INC(1)); ++ RR(VID_PIXEL_INC(1)); ++ RR(VID_FIR(1)); ++ RR(VID_PICTURE_SIZE(1)); ++ RR(VID_ACCU0(1)); ++ RR(VID_ACCU1(1)); ++ ++ RR(VID_FIR_COEF_H(1, 0)); ++ RR(VID_FIR_COEF_H(1, 1)); ++ RR(VID_FIR_COEF_H(1, 2)); ++ RR(VID_FIR_COEF_H(1, 3)); ++ RR(VID_FIR_COEF_H(1, 4)); ++ RR(VID_FIR_COEF_H(1, 5)); ++ RR(VID_FIR_COEF_H(1, 6)); ++ RR(VID_FIR_COEF_H(1, 7)); ++ ++ RR(VID_FIR_COEF_HV(1, 0)); ++ RR(VID_FIR_COEF_HV(1, 1)); ++ RR(VID_FIR_COEF_HV(1, 2)); ++ RR(VID_FIR_COEF_HV(1, 3)); ++ RR(VID_FIR_COEF_HV(1, 4)); ++ RR(VID_FIR_COEF_HV(1, 5)); ++ RR(VID_FIR_COEF_HV(1, 6)); ++ RR(VID_FIR_COEF_HV(1, 7)); ++ ++ RR(VID_CONV_COEF(1, 0)); ++ RR(VID_CONV_COEF(1, 1)); ++ RR(VID_CONV_COEF(1, 2)); ++ RR(VID_CONV_COEF(1, 3)); ++ RR(VID_CONV_COEF(1, 4)); ++ ++ RR(VID_FIR_COEF_V(1, 0)); ++ RR(VID_FIR_COEF_V(1, 1)); ++ RR(VID_FIR_COEF_V(1, 2)); ++ RR(VID_FIR_COEF_V(1, 3)); ++ RR(VID_FIR_COEF_V(1, 4)); ++ RR(VID_FIR_COEF_V(1, 5)); ++ RR(VID_FIR_COEF_V(1, 6)); ++ RR(VID_FIR_COEF_V(1, 7)); ++ ++ RR(VID_PRELOAD(1)); ++ ++ /* enable last, because LCD & DIGIT enable are here */ ++ RR(CONTROL); ++} ++ ++#undef SR ++#undef RR ++ ++static inline void enable_clocks(bool enable) ++{ ++ if (enable) ++ dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1); ++ else ++ dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1); ++} ++ ++bool dispc_go_busy(enum omap_channel channel) ++{ ++ int bit; ++ ++ if (channel == OMAP_DSS_CHANNEL_LCD) ++ bit = 5; /* GOLCD */ ++ else ++ bit = 6; /* GODIGIT */ ++ ++ return REG_GET(DISPC_CONTROL, bit, bit) == 1; ++} ++ ++void dispc_go(enum omap_channel channel) ++{ ++ int bit; ++ ++ enable_clocks(1); ++ ++ if (channel == OMAP_DSS_CHANNEL_LCD) ++ bit = 0; /* LCDENABLE */ ++ else ++ bit = 1; /* DIGITALENABLE */ ++ ++ /* if the channel is not enabled, we don't need GO */ ++ if (REG_GET(DISPC_CONTROL, bit, bit) == 0) ++ goto end; ++ ++ if (channel == OMAP_DSS_CHANNEL_LCD) ++ bit = 5; /* GOLCD */ ++ else ++ bit = 6; /* GODIGIT */ ++ ++ if (REG_GET(DISPC_CONTROL, bit, bit) == 1) { ++ DSSERR("GO bit not down for channel %d\n", channel); ++ goto end; ++ } ++ ++ DSSDBG("GO %s\n", channel == OMAP_DSS_CHANNEL_LCD ? "LCD" : "DIGIT"); ++ ++ REG_FLD_MOD(DISPC_CONTROL, 1, bit, bit); ++end: ++ enable_clocks(0); ++} ++ ++static void _dispc_write_firh_reg(enum omap_plane plane, int reg, u32 value) ++{ ++ BUG_ON(plane == OMAP_DSS_GFX); ++ ++ dispc_write_reg(DISPC_VID_FIR_COEF_H(plane-1, reg), value); ++} ++ ++static void _dispc_write_firhv_reg(enum omap_plane plane, int reg, u32 value) ++{ ++ BUG_ON(plane == OMAP_DSS_GFX); ++ ++ dispc_write_reg(DISPC_VID_FIR_COEF_HV(plane-1, reg), value); ++} ++ ++static void _dispc_write_firv_reg(enum omap_plane plane, int reg, u32 value) ++{ ++ BUG_ON(plane == OMAP_DSS_GFX); ++ ++ dispc_write_reg(DISPC_VID_FIR_COEF_V(plane-1, reg), value); ++} ++ ++static void _dispc_set_scale_coef(enum omap_plane plane, int hscaleup, ++ int vscaleup, int five_taps) ++{ ++ /* Coefficients for horizontal up-sampling */ ++ static const u32 coef_hup[8] = { ++ 0x00800000, ++ 0x0D7CF800, ++ 0x1E70F5FF, ++ 0x335FF5FE, ++ 0xF74949F7, ++ 0xF55F33FB, ++ 0xF5701EFE, ++ 0xF87C0DFF, ++ }; ++ ++ /* Coefficients for horizontal down-sampling */ ++ static const u32 coef_hdown[8] = { ++ 0x24382400, ++ 0x28371FFE, ++ 0x2C361BFB, ++ 0x303516F9, ++ 0x11343311, ++ 0x1635300C, ++ 0x1B362C08, ++ 0x1F372804, ++ }; ++ ++ /* Coefficients for horizontal and vertical up-sampling */ ++ static const u32 coef_hvup[2][8] = { ++ { ++ 0x00800000, ++ 0x037B02FF, ++ 0x0C6F05FE, ++ 0x205907FB, ++ 0x00404000, ++ 0x075920FE, ++ 0x056F0CFF, ++ 0x027B0300, ++ }, ++ { ++ 0x00800000, ++ 0x0D7CF8FF, ++ 0x1E70F5FE, ++ 0x335FF5FB, ++ 0xF7404000, ++ 0xF55F33FE, ++ 0xF5701EFF, ++ 0xF87C0D00, ++ }, ++ }; ++ ++ /* Coefficients for horizontal and vertical down-sampling */ ++ static const u32 coef_hvdown[2][8] = { ++ { ++ 0x24382400, ++ 0x28391F04, ++ 0x2D381B08, ++ 0x3237170C, ++ 0x123737F7, ++ 0x173732F9, ++ 0x1B382DFB, ++ 0x1F3928FE, ++ }, ++ { ++ 0x24382400, ++ 0x28371F04, ++ 0x2C361B08, ++ 0x3035160C, ++ 0x113433F7, ++ 0x163530F9, ++ 0x1B362CFB, ++ 0x1F3728FE, ++ }, ++ }; ++ ++ /* Coefficients for vertical up-sampling */ ++ static const u32 coef_vup[8] = { ++ 0x00000000, ++ 0x0000FF00, ++ 0x0000FEFF, ++ 0x0000FBFE, ++ 0x000000F7, ++ 0x0000FEFB, ++ 0x0000FFFE, ++ 0x000000FF, ++ }; ++ ++ ++ /* Coefficients for vertical down-sampling */ ++ static const u32 coef_vdown[8] = { ++ 0x00000000, ++ 0x000004FE, ++ 0x000008FB, ++ 0x00000CF9, ++ 0x0000F711, ++ 0x0000F90C, ++ 0x0000FB08, ++ 0x0000FE04, ++ }; ++ ++ const u32 *h_coef; ++ const u32 *hv_coef; ++ const u32 *hv_coef_mod; ++ const u32 *v_coef; ++ int i; ++ ++ if (hscaleup) ++ h_coef = coef_hup; ++ else ++ h_coef = coef_hdown; ++ ++ if (vscaleup) { ++ hv_coef = coef_hvup[five_taps]; ++ v_coef = coef_vup; ++ ++ if (hscaleup) ++ hv_coef_mod = NULL; ++ else ++ hv_coef_mod = coef_hvdown[five_taps]; ++ } else { ++ hv_coef = coef_hvdown[five_taps]; ++ v_coef = coef_vdown; ++ ++ if (hscaleup) ++ hv_coef_mod = coef_hvup[five_taps]; ++ else ++ hv_coef_mod = NULL; ++ } ++ ++ for (i = 0; i < 8; i++) { ++ u32 h, hv; ++ ++ h = h_coef[i]; ++ ++ hv = hv_coef[i]; ++ ++ if (hv_coef_mod) { ++ hv &= 0xffffff00; ++ hv |= (hv_coef_mod[i] & 0xff); ++ } ++ ++ _dispc_write_firh_reg(plane, i, h); ++ _dispc_write_firhv_reg(plane, i, hv); ++ } ++ ++ if (!five_taps) ++ return; ++ ++ for (i = 0; i < 8; i++) { ++ u32 v; ++ v = v_coef[i]; ++ _dispc_write_firv_reg(plane, i, v); ++ } ++} ++ ++static void _dispc_setup_color_conv_coef(void) ++{ ++ const struct color_conv_coef { ++ int ry, rcr, rcb, gy, gcr, gcb, by, bcr, bcb; ++ int full_range; ++ } ctbl_bt601_5 = { ++ 298, 409, 0, 298, -208, -100, 298, 0, 517, 0, ++ }; ++ ++ const struct color_conv_coef *ct; ++ ++#define CVAL(x, y) (FLD_VAL(x, 26, 16) | FLD_VAL(y, 10, 0)) ++ ++ ct = &ctbl_bt601_5; ++ ++ dispc_write_reg(DISPC_VID_CONV_COEF(0, 0), CVAL(ct->rcr, ct->ry)); ++ dispc_write_reg(DISPC_VID_CONV_COEF(0, 1), CVAL(ct->gy, ct->rcb)); ++ dispc_write_reg(DISPC_VID_CONV_COEF(0, 2), CVAL(ct->gcb, ct->gcr)); ++ dispc_write_reg(DISPC_VID_CONV_COEF(0, 3), CVAL(ct->bcr, ct->by)); ++ dispc_write_reg(DISPC_VID_CONV_COEF(0, 4), CVAL(0, ct->bcb)); ++ ++ dispc_write_reg(DISPC_VID_CONV_COEF(1, 0), CVAL(ct->rcr, ct->ry)); ++ dispc_write_reg(DISPC_VID_CONV_COEF(1, 1), CVAL(ct->gy, ct->rcb)); ++ dispc_write_reg(DISPC_VID_CONV_COEF(1, 2), CVAL(ct->gcb, ct->gcr)); ++ dispc_write_reg(DISPC_VID_CONV_COEF(1, 3), CVAL(ct->bcr, ct->by)); ++ dispc_write_reg(DISPC_VID_CONV_COEF(1, 4), CVAL(0, ct->bcb)); ++ ++#undef CVAL ++ ++ REG_FLD_MOD(DISPC_VID_ATTRIBUTES(0), ct->full_range, 11, 11); ++ REG_FLD_MOD(DISPC_VID_ATTRIBUTES(1), ct->full_range, 11, 11); ++} ++ ++ ++static void _dispc_set_plane_ba0(enum omap_plane plane, u32 paddr) ++{ ++ const struct dispc_reg ba0_reg[] = { DISPC_GFX_BA0, ++ DISPC_VID_BA0(0), ++ DISPC_VID_BA0(1) }; ++ ++ dispc_write_reg(ba0_reg[plane], paddr); ++} ++ ++static void _dispc_set_plane_ba1(enum omap_plane plane, u32 paddr) ++{ ++ const struct dispc_reg ba1_reg[] = { DISPC_GFX_BA1, ++ DISPC_VID_BA1(0), ++ DISPC_VID_BA1(1) }; ++ ++ dispc_write_reg(ba1_reg[plane], paddr); ++} ++ ++static void _dispc_set_plane_pos(enum omap_plane plane, int x, int y) ++{ ++ const struct dispc_reg pos_reg[] = { DISPC_GFX_POSITION, ++ DISPC_VID_POSITION(0), ++ DISPC_VID_POSITION(1) }; ++ ++ u32 val = FLD_VAL(y, 26, 16) | FLD_VAL(x, 10, 0); ++ dispc_write_reg(pos_reg[plane], val); ++} ++ ++static void _dispc_set_pic_size(enum omap_plane plane, int width, int height) ++{ ++ const struct dispc_reg siz_reg[] = { DISPC_GFX_SIZE, ++ DISPC_VID_PICTURE_SIZE(0), ++ DISPC_VID_PICTURE_SIZE(1) }; ++ u32 val = FLD_VAL(height - 1, 26, 16) | FLD_VAL(width - 1, 10, 0); ++ dispc_write_reg(siz_reg[plane], val); ++} ++ ++static void _dispc_set_vid_size(enum omap_plane plane, int width, int height) ++{ ++ u32 val; ++ const struct dispc_reg vsi_reg[] = { DISPC_VID_SIZE(0), ++ DISPC_VID_SIZE(1) }; ++ ++ BUG_ON(plane == OMAP_DSS_GFX); ++ ++ val = FLD_VAL(height - 1, 26, 16) | FLD_VAL(width - 1, 10, 0); ++ dispc_write_reg(vsi_reg[plane-1], val); ++} ++ ++static void _dispc_setup_global_alpha(enum omap_plane plane, u8 global_alpha) ++{ ++ ++ BUG_ON(plane == OMAP_DSS_VIDEO1); ++ ++ if (plane == OMAP_DSS_GFX) ++ REG_FLD_MOD(DISPC_GLOBAL_ALPHA, global_alpha, 7, 0); ++ else if (plane == OMAP_DSS_VIDEO2) ++ REG_FLD_MOD(DISPC_GLOBAL_ALPHA, global_alpha, 23, 16); ++} ++ ++static void _dispc_set_pix_inc(enum omap_plane plane, s32 inc) ++{ ++ const struct dispc_reg ri_reg[] = { DISPC_GFX_PIXEL_INC, ++ DISPC_VID_PIXEL_INC(0), ++ DISPC_VID_PIXEL_INC(1) }; ++ ++ dispc_write_reg(ri_reg[plane], inc); ++} ++ ++static void _dispc_set_row_inc(enum omap_plane plane, s32 inc) ++{ ++ const struct dispc_reg ri_reg[] = { DISPC_GFX_ROW_INC, ++ DISPC_VID_ROW_INC(0), ++ DISPC_VID_ROW_INC(1) }; ++ ++ dispc_write_reg(ri_reg[plane], inc); ++} ++ ++static void _dispc_set_color_mode(enum omap_plane plane, ++ enum omap_color_mode color_mode) ++{ ++ u32 m = 0; ++ ++ switch (color_mode) { ++ case OMAP_DSS_COLOR_CLUT1: ++ m = 0x0; break; ++ case OMAP_DSS_COLOR_CLUT2: ++ m = 0x1; break; ++ case OMAP_DSS_COLOR_CLUT4: ++ m = 0x2; break; ++ case OMAP_DSS_COLOR_CLUT8: ++ m = 0x3; break; ++ case OMAP_DSS_COLOR_RGB12U: ++ m = 0x4; break; ++ case OMAP_DSS_COLOR_ARGB16: ++ m = 0x5; break; ++ case OMAP_DSS_COLOR_RGB16: ++ m = 0x6; break; ++ case OMAP_DSS_COLOR_RGB24U: ++ m = 0x8; break; ++ case OMAP_DSS_COLOR_RGB24P: ++ m = 0x9; break; ++ case OMAP_DSS_COLOR_YUV2: ++ m = 0xa; break; ++ case OMAP_DSS_COLOR_UYVY: ++ m = 0xb; break; ++ case OMAP_DSS_COLOR_ARGB32: ++ m = 0xc; break; ++ case OMAP_DSS_COLOR_RGBA32: ++ m = 0xd; break; ++ case OMAP_DSS_COLOR_RGBX32: ++ m = 0xe; break; ++ default: ++ BUG(); break; ++ } ++ ++ REG_FLD_MOD(dispc_reg_att[plane], m, 4, 1); ++} ++ ++static void _dispc_set_channel_out(enum omap_plane plane, ++ enum omap_channel channel) ++{ ++ int shift; ++ u32 val; ++ ++ switch (plane) { ++ case OMAP_DSS_GFX: ++ shift = 8; ++ break; ++ case OMAP_DSS_VIDEO1: ++ case OMAP_DSS_VIDEO2: ++ shift = 16; ++ break; ++ default: ++ BUG(); ++ return; ++ } ++ ++ val = dispc_read_reg(dispc_reg_att[plane]); ++ val = FLD_MOD(val, channel, shift, shift); ++ dispc_write_reg(dispc_reg_att[plane], val); ++} ++ ++void dispc_set_burst_size(enum omap_plane plane, ++ enum omap_burst_size burst_size) ++{ ++ int shift; ++ u32 val; ++ ++ enable_clocks(1); ++ ++ switch (plane) { ++ case OMAP_DSS_GFX: ++ shift = 6; ++ break; ++ case OMAP_DSS_VIDEO1: ++ case OMAP_DSS_VIDEO2: ++ shift = 14; ++ break; ++ default: ++ BUG(); ++ return; ++ } ++ ++ val = dispc_read_reg(dispc_reg_att[plane]); ++ val = FLD_MOD(val, burst_size, shift+1, shift); ++ dispc_write_reg(dispc_reg_att[plane], val); ++ ++ enable_clocks(0); ++} ++ ++static void _dispc_set_vid_color_conv(enum omap_plane plane, bool enable) ++{ ++ u32 val; ++ ++ BUG_ON(plane == OMAP_DSS_GFX); ++ ++ val = dispc_read_reg(dispc_reg_att[plane]); ++ val = FLD_MOD(val, enable, 9, 9); ++ dispc_write_reg(dispc_reg_att[plane], val); ++} ++ ++void dispc_enable_replication(enum omap_plane plane, bool enable) ++{ ++ int bit; ++ ++ if (plane == OMAP_DSS_GFX) ++ bit = 5; ++ else ++ bit = 10; ++ ++ enable_clocks(1); ++ REG_FLD_MOD(dispc_reg_att[plane], enable, bit, bit); ++ enable_clocks(0); ++} ++ ++void dispc_set_lcd_size(u16 width, u16 height) ++{ ++ u32 val; ++ BUG_ON((width > (1 << 11)) || (height > (1 << 11))); ++ val = FLD_VAL(height - 1, 26, 16) | FLD_VAL(width - 1, 10, 0); ++ enable_clocks(1); ++ dispc_write_reg(DISPC_SIZE_LCD, val); ++ enable_clocks(0); ++} ++ ++void dispc_set_digit_size(u16 width, u16 height) ++{ ++ u32 val; ++ BUG_ON((width > (1 << 11)) || (height > (1 << 11))); ++ val = FLD_VAL(height - 1, 26, 16) | FLD_VAL(width - 1, 10, 0); ++ enable_clocks(1); ++ dispc_write_reg(DISPC_SIZE_DIG, val); ++ enable_clocks(0); ++} ++ ++static void dispc_read_plane_fifo_sizes(void) ++{ ++ const struct dispc_reg fsz_reg[] = { DISPC_GFX_FIFO_SIZE_STATUS, ++ DISPC_VID_FIFO_SIZE_STATUS(0), ++ DISPC_VID_FIFO_SIZE_STATUS(1) }; ++ u32 size; ++ int plane; ++ ++ enable_clocks(1); ++ ++ for (plane = 0; plane < ARRAY_SIZE(dispc.fifo_size); ++plane) { ++ if (cpu_is_omap24xx()) ++ size = FLD_GET(dispc_read_reg(fsz_reg[plane]), 8, 0); ++ else if (cpu_is_omap34xx()) ++ size = FLD_GET(dispc_read_reg(fsz_reg[plane]), 10, 0); ++ else ++ BUG(); ++ ++ dispc.fifo_size[plane] = size; ++ } ++ ++ enable_clocks(0); ++} ++ ++u32 dispc_get_plane_fifo_size(enum omap_plane plane) ++{ ++ return dispc.fifo_size[plane]; ++} ++ ++void dispc_setup_plane_fifo(enum omap_plane plane, u32 low, u32 high) ++{ ++ const struct dispc_reg ftrs_reg[] = { DISPC_GFX_FIFO_THRESHOLD, ++ DISPC_VID_FIFO_THRESHOLD(0), ++ DISPC_VID_FIFO_THRESHOLD(1) }; ++ enable_clocks(1); ++ ++ DSSDBG("fifo(%d) low/high old %u/%u, new %u/%u\n", ++ plane, ++ REG_GET(ftrs_reg[plane], 11, 0), ++ REG_GET(ftrs_reg[plane], 27, 16), ++ low, high); ++ ++ if (cpu_is_omap24xx()) ++ dispc_write_reg(ftrs_reg[plane], ++ FLD_VAL(high, 24, 16) | FLD_VAL(low, 8, 0)); ++ else ++ dispc_write_reg(ftrs_reg[plane], ++ FLD_VAL(high, 27, 16) | FLD_VAL(low, 11, 0)); ++ ++ enable_clocks(0); ++} ++ ++void dispc_enable_fifomerge(bool enable) ++{ ++ enable_clocks(1); ++ ++ DSSDBG("FIFO merge %s\n", enable ? "enabled" : "disabled"); ++ REG_FLD_MOD(DISPC_CONFIG, enable ? 1 : 0, 14, 14); ++ ++ enable_clocks(0); ++} ++ ++static void _dispc_set_fir(enum omap_plane plane, int hinc, int vinc) ++{ ++ u32 val; ++ const struct dispc_reg fir_reg[] = { DISPC_VID_FIR(0), ++ DISPC_VID_FIR(1) }; ++ ++ BUG_ON(plane == OMAP_DSS_GFX); ++ ++ if (cpu_is_omap24xx()) ++ val = FLD_VAL(vinc, 27, 16) | FLD_VAL(hinc, 11, 0); ++ else ++ val = FLD_VAL(vinc, 28, 16) | FLD_VAL(hinc, 12, 0); ++ dispc_write_reg(fir_reg[plane-1], val); ++} ++ ++static void _dispc_set_vid_accu0(enum omap_plane plane, int haccu, int vaccu) ++{ ++ u32 val; ++ const struct dispc_reg ac0_reg[] = { DISPC_VID_ACCU0(0), ++ DISPC_VID_ACCU0(1) }; ++ ++ BUG_ON(plane == OMAP_DSS_GFX); ++ ++ val = FLD_VAL(vaccu, 25, 16) | FLD_VAL(haccu, 9, 0); ++ dispc_write_reg(ac0_reg[plane-1], val); ++} ++ ++static void _dispc_set_vid_accu1(enum omap_plane plane, int haccu, int vaccu) ++{ ++ u32 val; ++ const struct dispc_reg ac1_reg[] = { DISPC_VID_ACCU1(0), ++ DISPC_VID_ACCU1(1) }; ++ ++ BUG_ON(plane == OMAP_DSS_GFX); ++ ++ val = FLD_VAL(vaccu, 25, 16) | FLD_VAL(haccu, 9, 0); ++ dispc_write_reg(ac1_reg[plane-1], val); ++} ++ ++ ++static void _dispc_set_scaling(enum omap_plane plane, ++ u16 orig_width, u16 orig_height, ++ u16 out_width, u16 out_height, ++ bool ilace, bool five_taps, ++ bool fieldmode) ++{ ++ int fir_hinc; ++ int fir_vinc; ++ int hscaleup, vscaleup; ++ int accu0 = 0; ++ int accu1 = 0; ++ u32 l; ++ ++ BUG_ON(plane == OMAP_DSS_GFX); ++ ++ hscaleup = orig_width <= out_width; ++ vscaleup = orig_height <= out_height; ++ ++ _dispc_set_scale_coef(plane, hscaleup, vscaleup, five_taps); ++ ++ if (!orig_width || orig_width == out_width) ++ fir_hinc = 0; ++ else ++ fir_hinc = 1024 * orig_width / out_width; ++ ++ if (!orig_height || orig_height == out_height) ++ fir_vinc = 0; ++ else ++ fir_vinc = 1024 * orig_height / out_height; ++ ++ _dispc_set_fir(plane, fir_hinc, fir_vinc); ++ ++ l = dispc_read_reg(dispc_reg_att[plane]); ++ l &= ~((0x0f << 5) | (0x3 << 21)); ++ ++ l |= fir_hinc ? (1 << 5) : 0; ++ l |= fir_vinc ? (1 << 6) : 0; ++ ++ l |= hscaleup ? 0 : (1 << 7); ++ l |= vscaleup ? 0 : (1 << 8); ++ ++ l |= five_taps ? (1 << 21) : 0; ++ l |= five_taps ? (1 << 22) : 0; ++ ++ dispc_write_reg(dispc_reg_att[plane], l); ++ ++ /* ++ * field 0 = even field = bottom field ++ * field 1 = odd field = top field ++ */ ++ if (ilace && !fieldmode) { ++ accu1 = 0; ++ accu0 = (fir_vinc / 2) & 0x3ff; ++ if (accu0 >= 1024/2) { ++ accu1 = 1024/2; ++ accu0 -= accu1; ++ } ++ } ++ ++ _dispc_set_vid_accu0(plane, 0, accu0); ++ _dispc_set_vid_accu1(plane, 0, accu1); ++} ++ ++static void _dispc_set_rotation_attrs(enum omap_plane plane, u8 rotation, ++ bool mirroring, enum omap_color_mode color_mode) ++{ ++ if (color_mode == OMAP_DSS_COLOR_YUV2 || ++ color_mode == OMAP_DSS_COLOR_UYVY) { ++ int vidrot = 0; ++ ++ if (mirroring) { ++ switch (rotation) { ++ case 0: ++ vidrot = 2; ++ break; ++ case 1: ++ vidrot = 1; ++ break; ++ case 2: ++ vidrot = 0; ++ break; ++ case 3: ++ vidrot = 3; ++ break; ++ } ++ } else { ++ switch (rotation) { ++ case 0: ++ vidrot = 0; ++ break; ++ case 1: ++ vidrot = 1; ++ break; ++ case 2: ++ vidrot = 2; ++ break; ++ case 3: ++ vidrot = 3; ++ break; ++ } ++ } ++ ++ REG_FLD_MOD(dispc_reg_att[plane], vidrot, 13, 12); ++ ++ if (rotation == 1 || rotation == 3) ++ REG_FLD_MOD(dispc_reg_att[plane], 0x1, 18, 18); ++ else ++ REG_FLD_MOD(dispc_reg_att[plane], 0x0, 18, 18); ++ } else { ++ REG_FLD_MOD(dispc_reg_att[plane], 0, 13, 12); ++ REG_FLD_MOD(dispc_reg_att[plane], 0, 18, 18); ++ } ++} ++ ++static s32 pixinc(int pixels, u8 ps) ++{ ++ if (pixels == 1) ++ return 1; ++ else if (pixels > 1) ++ return 1 + (pixels - 1) * ps; ++ else if (pixels < 0) ++ return 1 - (-pixels + 1) * ps; ++ else ++ BUG(); ++} ++ ++static void calc_vrfb_rotation_offset(u8 rotation, bool mirror, ++ u16 screen_width, ++ u16 width, u16 height, ++ enum omap_color_mode color_mode, bool fieldmode, ++ unsigned int field_offset, ++ unsigned *offset0, unsigned *offset1, ++ s32 *row_inc, s32 *pix_inc) ++{ ++ u8 ps; ++ ++ switch (color_mode) { ++ case OMAP_DSS_COLOR_RGB16: ++ case OMAP_DSS_COLOR_ARGB16: ++ ps = 2; ++ break; ++ ++ case OMAP_DSS_COLOR_RGB24P: ++ ps = 3; ++ break; ++ ++ case OMAP_DSS_COLOR_RGB24U: ++ case OMAP_DSS_COLOR_ARGB32: ++ case OMAP_DSS_COLOR_RGBA32: ++ case OMAP_DSS_COLOR_RGBX32: ++ case OMAP_DSS_COLOR_YUV2: ++ case OMAP_DSS_COLOR_UYVY: ++ ps = 4; ++ break; ++ ++ default: ++ BUG(); ++ return; ++ } ++ ++ DSSDBG("calc_rot(%d): scrw %d, %dx%d\n", rotation, screen_width, ++ width, height); ++ ++ /* ++ * field 0 = even field = bottom field ++ * field 1 = odd field = top field ++ */ ++ switch (rotation + mirror * 4) { ++ case 0: ++ case 2: ++ /* ++ * If the pixel format is YUV or UYVY divide the width ++ * of the image by 2 for 0 and 180 degree rotation. ++ */ ++ if (color_mode == OMAP_DSS_COLOR_YUV2 || ++ color_mode == OMAP_DSS_COLOR_UYVY) ++ width = width >> 1; ++ case 1: ++ case 3: ++ *offset1 = 0; ++ if (field_offset) ++ *offset0 = field_offset * screen_width * ps; ++ else ++ *offset0 = 0; ++ ++ *row_inc = pixinc(1 + (screen_width - width) + ++ (fieldmode ? screen_width : 0), ++ ps); ++ *pix_inc = pixinc(1, ps); ++ break; ++ ++ case 4: ++ case 6: ++ /* If the pixel format is YUV or UYVY divide the width ++ * of the image by 2 for 0 degree and 180 degree ++ */ ++ if (color_mode == OMAP_DSS_COLOR_YUV2 || ++ color_mode == OMAP_DSS_COLOR_UYVY) ++ width = width >> 1; ++ case 5: ++ case 7: ++ *offset1 = 0; ++ if (field_offset) ++ *offset0 = field_offset * screen_width * ps; ++ else ++ *offset0 = 0; ++ *row_inc = pixinc(1 - (screen_width + width) - ++ (fieldmode ? screen_width : 0), ++ ps); ++ *pix_inc = pixinc(1, ps); ++ break; ++ ++ default: ++ BUG(); ++ } ++} ++ ++static void calc_dma_rotation_offset(u8 rotation, bool mirror, ++ u16 screen_width, ++ u16 width, u16 height, ++ enum omap_color_mode color_mode, bool fieldmode, ++ unsigned int field_offset, ++ unsigned *offset0, unsigned *offset1, ++ s32 *row_inc, s32 *pix_inc) ++{ ++ u8 ps; ++ u16 fbw, fbh; ++ ++ switch (color_mode) { ++ case OMAP_DSS_COLOR_RGB16: ++ case OMAP_DSS_COLOR_ARGB16: ++ ps = 2; ++ break; ++ ++ case OMAP_DSS_COLOR_RGB24P: ++ ps = 3; ++ break; ++ ++ case OMAP_DSS_COLOR_RGB24U: ++ case OMAP_DSS_COLOR_ARGB32: ++ case OMAP_DSS_COLOR_RGBA32: ++ case OMAP_DSS_COLOR_RGBX32: ++ ps = 4; ++ break; ++ ++ case OMAP_DSS_COLOR_YUV2: ++ case OMAP_DSS_COLOR_UYVY: ++ ps = 2; ++ break; ++ default: ++ BUG(); ++ return; ++ } ++ ++ DSSDBG("calc_rot(%d): scrw %d, %dx%d\n", rotation, screen_width, ++ width, height); ++ ++ /* width & height are overlay sizes, convert to fb sizes */ ++ ++ if (rotation == 0 || rotation == 2) { ++ fbw = width; ++ fbh = height; ++ } else { ++ fbw = height; ++ fbh = width; ++ } ++ ++ /* ++ * field 0 = even field = bottom field ++ * field 1 = odd field = top field ++ */ ++ switch (rotation + mirror * 4) { ++ case 0: ++ *offset1 = 0; ++ if (field_offset) ++ *offset0 = *offset1 + field_offset * screen_width * ps; ++ else ++ *offset0 = *offset1; ++ *row_inc = pixinc(1 + (screen_width - fbw) + ++ (fieldmode ? screen_width : 0), ++ ps); ++ *pix_inc = pixinc(1, ps); ++ break; ++ case 1: ++ *offset1 = screen_width * (fbh - 1) * ps; ++ if (field_offset) ++ *offset0 = *offset1 + field_offset * ps; ++ else ++ *offset0 = *offset1; ++ *row_inc = pixinc(screen_width * (fbh - 1) + 1 + ++ (fieldmode ? 1 : 0), ps); ++ *pix_inc = pixinc(-screen_width, ps); ++ break; ++ case 2: ++ *offset1 = (screen_width * (fbh - 1) + fbw - 1) * ps; ++ if (field_offset) ++ *offset0 = *offset1 - field_offset * screen_width * ps; ++ else ++ *offset0 = *offset1; ++ *row_inc = pixinc(-1 - ++ (screen_width - fbw) - ++ (fieldmode ? screen_width : 0), ++ ps); ++ *pix_inc = pixinc(-1, ps); ++ break; ++ case 3: ++ *offset1 = (fbw - 1) * ps; ++ if (field_offset) ++ *offset0 = *offset1 - field_offset * ps; ++ else ++ *offset0 = *offset1; ++ *row_inc = pixinc(-screen_width * (fbh - 1) - 1 - ++ (fieldmode ? 1 : 0), ps); ++ *pix_inc = pixinc(screen_width, ps); ++ break; ++ ++ /* mirroring */ ++ case 0 + 4: ++ *offset1 = (fbw - 1) * ps; ++ if (field_offset) ++ *offset0 = *offset1 + field_offset * screen_width * ps; ++ else ++ *offset0 = *offset1; ++ *row_inc = pixinc(screen_width * 2 - 1 + ++ (fieldmode ? screen_width : 0), ++ ps); ++ *pix_inc = pixinc(-1, ps); ++ break; ++ ++ case 1 + 4: ++ *offset1 = 0; ++ if (field_offset) ++ *offset0 = *offset1 + field_offset * ps; ++ else ++ *offset0 = *offset1; ++ *row_inc = pixinc(-screen_width * (fbh - 1) + 1 + ++ (fieldmode ? 1 : 0), ++ ps); ++ *pix_inc = pixinc(screen_width, ps); ++ break; ++ ++ case 2 + 4: ++ *offset1 = screen_width * (fbh - 1) * ps; ++ if (field_offset) ++ *offset0 = *offset1 - field_offset * screen_width * ps; ++ else ++ *offset0 = *offset1; ++ *row_inc = pixinc(1 - screen_width * 2 - ++ (fieldmode ? screen_width : 0), ++ ps); ++ *pix_inc = pixinc(1, ps); ++ break; ++ ++ case 3 + 4: ++ *offset1 = (screen_width * (fbh - 1) + fbw - 1) * ps; ++ if (field_offset) ++ *offset0 = *offset1 - field_offset * ps; ++ else ++ *offset0 = *offset1; ++ *row_inc = pixinc(screen_width * (fbh - 1) - 1 - ++ (fieldmode ? 1 : 0), ++ ps); ++ *pix_inc = pixinc(-screen_width, ps); ++ break; ++ ++ default: ++ BUG(); ++ } ++} ++ ++static unsigned long calc_fclk_five_taps(u16 width, u16 height, ++ u16 out_width, u16 out_height, enum omap_color_mode color_mode) ++{ ++ u32 fclk = 0; ++ /* FIXME venc pclk? */ ++ u64 tmp, pclk = dispc_pclk_rate(); ++ ++ if (height > out_height) { ++ /* FIXME get real display PPL */ ++ unsigned int ppl = 800; ++ ++ tmp = pclk * height * out_width; ++ do_div(tmp, 2 * out_height * ppl); ++ fclk = tmp; ++ ++ if (height > 2 * out_height && ppl != out_width) { ++ tmp = pclk * (height - 2 * out_height) * out_width; ++ do_div(tmp, 2 * out_height * (ppl - out_width)); ++ fclk = max(fclk, (u32) tmp); ++ } ++ } ++ ++ if (width > out_width) { ++ tmp = pclk * width; ++ do_div(tmp, out_width); ++ fclk = max(fclk, (u32) tmp); ++ ++ if (color_mode == OMAP_DSS_COLOR_RGB24U) ++ fclk <<= 1; ++ } ++ ++ return fclk; ++} ++ ++static unsigned long calc_fclk(u16 width, u16 height, ++ u16 out_width, u16 out_height) ++{ ++ unsigned int hf, vf; ++ ++ /* ++ * FIXME how to determine the 'A' factor ++ * for the no downscaling case ? ++ */ ++ ++ if (width > 3 * out_width) ++ hf = 4; ++ else if (width > 2 * out_width) ++ hf = 3; ++ else if (width > out_width) ++ hf = 2; ++ else ++ hf = 1; ++ ++ if (height > out_height) ++ vf = 2; ++ else ++ vf = 1; ++ ++ /* FIXME venc pclk? */ ++ return dispc_pclk_rate() * vf * hf; ++} ++ ++void dispc_set_channel_out(enum omap_plane plane, enum omap_channel channel_out) ++{ ++ enable_clocks(1); ++ _dispc_set_channel_out(plane, channel_out); ++ enable_clocks(0); ++} ++ ++static int _dispc_setup_plane(enum omap_plane plane, ++ u32 paddr, u16 screen_width, ++ u16 pos_x, u16 pos_y, ++ u16 width, u16 height, ++ u16 out_width, u16 out_height, ++ enum omap_color_mode color_mode, ++ bool ilace, ++ enum omap_dss_rotation_type rotation_type, ++ u8 rotation, int mirror, ++ u8 global_alpha) ++{ ++ const int maxdownscale = cpu_is_omap34xx() ? 4 : 2; ++ bool five_taps = 0; ++ bool fieldmode = 0; ++ int cconv = 0; ++ unsigned offset0, offset1; ++ s32 row_inc; ++ s32 pix_inc; ++ u16 frame_height = height; ++ unsigned int field_offset = 0; ++ ++ if (paddr == 0) ++ return -EINVAL; ++ ++ if (ilace && height == out_height) ++ fieldmode = 1; ++ ++ if (ilace) { ++ if (fieldmode) ++ height /= 2; ++ pos_y /= 2; ++ out_height /= 2; ++ ++ DSSDBG("adjusting for ilace: height %d, pos_y %d, " ++ "out_height %d\n", ++ height, pos_y, out_height); ++ } ++ ++ if (plane == OMAP_DSS_GFX) { ++ if (width != out_width || height != out_height) ++ return -EINVAL; ++ ++ switch (color_mode) { ++ case OMAP_DSS_COLOR_ARGB16: ++ case OMAP_DSS_COLOR_RGB16: ++ case OMAP_DSS_COLOR_RGB24P: ++ case OMAP_DSS_COLOR_RGB24U: ++ case OMAP_DSS_COLOR_ARGB32: ++ case OMAP_DSS_COLOR_RGBA32: ++ case OMAP_DSS_COLOR_RGBX32: ++ break; ++ ++ default: ++ return -EINVAL; ++ } ++ } else { ++ /* video plane */ ++ ++ unsigned long fclk = 0; ++ ++ if (out_width < width / maxdownscale || ++ out_width > width * 8) ++ return -EINVAL; ++ ++ if (out_height < height / maxdownscale || ++ out_height > height * 8) ++ return -EINVAL; ++ ++ switch (color_mode) { ++ case OMAP_DSS_COLOR_RGB16: ++ case OMAP_DSS_COLOR_RGB24P: ++ case OMAP_DSS_COLOR_RGB24U: ++ case OMAP_DSS_COLOR_RGBX32: ++ break; ++ ++ case OMAP_DSS_COLOR_ARGB16: ++ case OMAP_DSS_COLOR_ARGB32: ++ case OMAP_DSS_COLOR_RGBA32: ++ if (plane == OMAP_DSS_VIDEO1) ++ return -EINVAL; ++ break; ++ ++ case OMAP_DSS_COLOR_YUV2: ++ case OMAP_DSS_COLOR_UYVY: ++ cconv = 1; ++ break; ++ ++ default: ++ return -EINVAL; ++ } ++ ++ /* Must use 5-tap filter? */ ++ five_taps = height > out_height * 2; ++ ++ if (!five_taps) { ++ fclk = calc_fclk(width, height, ++ out_width, out_height); ++ ++ /* Try 5-tap filter if 3-tap fclk is too high */ ++ if (cpu_is_omap34xx() && height > out_height && ++ fclk > dispc_fclk_rate()) ++ five_taps = true; ++ } ++ ++ if (width > (2048 >> five_taps)) ++ return -EINVAL; ++ ++ if (five_taps) ++ fclk = calc_fclk_five_taps(width, height, ++ out_width, out_height, color_mode); ++ ++ DSSDBG("required fclk rate = %lu Hz\n", fclk); ++ DSSDBG("current fclk rate = %lu Hz\n", dispc_fclk_rate()); ++ ++ if (fclk > dispc_fclk_rate()) { ++ DSSERR("failed to set up scaling, " ++ "required fclk rate = %lu Hz, " ++ "current fclk rate = %lu Hz\n", ++ fclk, dispc_fclk_rate()); ++ return -EINVAL; ++ } ++ } ++ ++ if (ilace && !fieldmode) { ++ /* ++ * when downscaling the bottom field may have to start several ++ * source lines below the top field. Unfortunately ACCUI ++ * registers will only hold the fractional part of the offset ++ * so the integer part must be added to the base address of the ++ * bottom field. ++ */ ++ if (!height || height == out_height) ++ field_offset = 0; ++ else ++ field_offset = height / out_height / 2; ++ } ++ ++ /* Fields are independent but interleaved in memory. */ ++ if (fieldmode) ++ field_offset = 1; ++ ++ if (rotation_type == OMAP_DSS_ROT_DMA) ++ calc_dma_rotation_offset(rotation, mirror, ++ screen_width, width, frame_height, color_mode, ++ fieldmode, field_offset, ++ &offset0, &offset1, &row_inc, &pix_inc); ++ else ++ calc_vrfb_rotation_offset(rotation, mirror, ++ screen_width, width, frame_height, color_mode, ++ fieldmode, field_offset, ++ &offset0, &offset1, &row_inc, &pix_inc); ++ ++ DSSDBG("offset0 %u, offset1 %u, row_inc %d, pix_inc %d\n", ++ offset0, offset1, row_inc, pix_inc); ++ ++ _dispc_set_color_mode(plane, color_mode); ++ ++ _dispc_set_plane_ba0(plane, paddr + offset0); ++ _dispc_set_plane_ba1(plane, paddr + offset1); ++ ++ _dispc_set_row_inc(plane, row_inc); ++ _dispc_set_pix_inc(plane, pix_inc); ++ ++ DSSDBG("%d,%d %dx%d -> %dx%d\n", pos_x, pos_y, width, height, ++ out_width, out_height); ++ ++ _dispc_set_plane_pos(plane, pos_x, pos_y); ++ ++ _dispc_set_pic_size(plane, width, height); ++ ++ if (plane != OMAP_DSS_GFX) { ++ _dispc_set_scaling(plane, width, height, ++ out_width, out_height, ++ ilace, five_taps, fieldmode); ++ _dispc_set_vid_size(plane, out_width, out_height); ++ _dispc_set_vid_color_conv(plane, cconv); ++ } ++ ++ _dispc_set_rotation_attrs(plane, rotation, mirror, color_mode); ++ ++ if (plane != OMAP_DSS_VIDEO1) ++ _dispc_setup_global_alpha(plane, global_alpha); ++ ++ return 0; ++} ++ ++static void _dispc_enable_plane(enum omap_plane plane, bool enable) ++{ ++ REG_FLD_MOD(dispc_reg_att[plane], enable ? 1 : 0, 0, 0); ++} ++ ++static void dispc_disable_isr(void *data, u32 mask) ++{ ++ struct completion *compl = data; ++ complete(compl); ++} ++ ++static void _enable_lcd_out(bool enable) ++{ ++ REG_FLD_MOD(DISPC_CONTROL, enable ? 1 : 0, 0, 0); ++} ++ ++void dispc_enable_lcd_out(bool enable) ++{ ++ struct completion frame_done_completion; ++ bool is_on; ++ int r; ++ ++ enable_clocks(1); ++ ++ /* When we disable LCD output, we need to wait until frame is done. ++ * Otherwise the DSS is still working, and turning off the clocks ++ * prevents DSS from going to OFF mode */ ++ is_on = REG_GET(DISPC_CONTROL, 0, 0); ++ ++ if (!enable && is_on) { ++ init_completion(&frame_done_completion); ++ ++ r = omap_dispc_register_isr(dispc_disable_isr, ++ &frame_done_completion, ++ DISPC_IRQ_FRAMEDONE); ++ ++ if (r) ++ DSSERR("failed to register FRAMEDONE isr\n"); ++ } ++ ++ _enable_lcd_out(enable); ++ ++ if (!enable && is_on) { ++ if (!wait_for_completion_timeout(&frame_done_completion, ++ msecs_to_jiffies(100))) ++ DSSERR("timeout waiting for FRAME DONE\n"); ++ ++ r = omap_dispc_unregister_isr(dispc_disable_isr, ++ &frame_done_completion, ++ DISPC_IRQ_FRAMEDONE); ++ ++ if (r) ++ DSSERR("failed to unregister FRAMEDONE isr\n"); ++ } ++ ++ enable_clocks(0); ++} ++ ++static void _enable_digit_out(bool enable) ++{ ++ REG_FLD_MOD(DISPC_CONTROL, enable ? 1 : 0, 1, 1); ++} ++ ++void dispc_enable_digit_out(bool enable) ++{ ++ struct completion frame_done_completion; ++ int r; ++ ++ enable_clocks(1); ++ ++ if (REG_GET(DISPC_CONTROL, 1, 1) == enable) { ++ enable_clocks(0); ++ return; ++ } ++ ++ if (enable) { ++ unsigned long flags; ++ /* When we enable digit output, we'll get an extra digit ++ * sync lost interrupt, that we need to ignore */ ++ spin_lock_irqsave(&dispc.irq_lock, flags); ++ dispc.irq_error_mask &= ~DISPC_IRQ_SYNC_LOST_DIGIT; ++ _omap_dispc_set_irqs(); ++ spin_unlock_irqrestore(&dispc.irq_lock, flags); ++ } ++ ++ /* When we disable digit output, we need to wait until fields are done. ++ * Otherwise the DSS is still working, and turning off the clocks ++ * prevents DSS from going to OFF mode. And when enabling, we need to ++ * wait for the extra sync losts */ ++ init_completion(&frame_done_completion); ++ ++ r = omap_dispc_register_isr(dispc_disable_isr, &frame_done_completion, ++ DISPC_IRQ_EVSYNC_EVEN | DISPC_IRQ_EVSYNC_ODD); ++ if (r) ++ DSSERR("failed to register EVSYNC isr\n"); ++ ++ _enable_digit_out(enable); ++ ++ /* XXX I understand from TRM that we should only wait for the ++ * current field to complete. But it seems we have to wait ++ * for both fields */ ++ if (!wait_for_completion_timeout(&frame_done_completion, ++ msecs_to_jiffies(100))) ++ DSSERR("timeout waiting for EVSYNC\n"); ++ ++ if (!wait_for_completion_timeout(&frame_done_completion, ++ msecs_to_jiffies(100))) ++ DSSERR("timeout waiting for EVSYNC\n"); ++ ++ r = omap_dispc_unregister_isr(dispc_disable_isr, ++ &frame_done_completion, ++ DISPC_IRQ_EVSYNC_EVEN | DISPC_IRQ_EVSYNC_ODD); ++ if (r) ++ DSSERR("failed to unregister EVSYNC isr\n"); ++ ++ if (enable) { ++ unsigned long flags; ++ spin_lock_irqsave(&dispc.irq_lock, flags); ++ dispc.irq_error_mask = DISPC_IRQ_MASK_ERROR; ++ dispc_write_reg(DISPC_IRQSTATUS, DISPC_IRQ_SYNC_LOST_DIGIT); ++ _omap_dispc_set_irqs(); ++ spin_unlock_irqrestore(&dispc.irq_lock, flags); ++ } ++ ++ enable_clocks(0); ++} ++ ++void dispc_lcd_enable_signal_polarity(bool act_high) ++{ ++ enable_clocks(1); ++ REG_FLD_MOD(DISPC_CONTROL, act_high ? 1 : 0, 29, 29); ++ enable_clocks(0); ++} ++ ++void dispc_lcd_enable_signal(bool enable) ++{ ++ enable_clocks(1); ++ REG_FLD_MOD(DISPC_CONTROL, enable ? 1 : 0, 28, 28); ++ enable_clocks(0); ++} ++ ++void dispc_pck_free_enable(bool enable) ++{ ++ enable_clocks(1); ++ REG_FLD_MOD(DISPC_CONTROL, enable ? 1 : 0, 27, 27); ++ enable_clocks(0); ++} ++ ++void dispc_enable_fifohandcheck(bool enable) ++{ ++ enable_clocks(1); ++ REG_FLD_MOD(DISPC_CONFIG, enable ? 1 : 0, 16, 16); ++ enable_clocks(0); ++} ++ ++ ++void dispc_set_lcd_display_type(enum omap_lcd_display_type type) ++{ ++ int mode; ++ ++ switch (type) { ++ case OMAP_DSS_LCD_DISPLAY_STN: ++ mode = 0; ++ break; ++ ++ case OMAP_DSS_LCD_DISPLAY_TFT: ++ mode = 1; ++ break; ++ ++ default: ++ BUG(); ++ return; ++ } ++ ++ enable_clocks(1); ++ REG_FLD_MOD(DISPC_CONTROL, mode, 3, 3); ++ enable_clocks(0); ++} ++ ++void dispc_set_loadmode(enum omap_dss_load_mode mode) ++{ ++ enable_clocks(1); ++ REG_FLD_MOD(DISPC_CONFIG, mode, 2, 1); ++ enable_clocks(0); ++} ++ ++ ++void dispc_set_default_color(enum omap_channel channel, u32 color) ++{ ++ const struct dispc_reg def_reg[] = { DISPC_DEFAULT_COLOR0, ++ DISPC_DEFAULT_COLOR1 }; ++ ++ enable_clocks(1); ++ dispc_write_reg(def_reg[channel], color); ++ enable_clocks(0); ++} ++ ++u32 dispc_get_default_color(enum omap_channel channel) ++{ ++ const struct dispc_reg def_reg[] = { DISPC_DEFAULT_COLOR0, ++ DISPC_DEFAULT_COLOR1 }; ++ u32 l; ++ ++ BUG_ON(channel != OMAP_DSS_CHANNEL_DIGIT && ++ channel != OMAP_DSS_CHANNEL_LCD); ++ ++ enable_clocks(1); ++ l = dispc_read_reg(def_reg[channel]); ++ enable_clocks(0); ++ ++ return l; ++} ++ ++void dispc_set_trans_key(enum omap_channel ch, ++ enum omap_dss_trans_key_type type, ++ u32 trans_key) ++{ ++ const struct dispc_reg tr_reg[] = { ++ DISPC_TRANS_COLOR0, DISPC_TRANS_COLOR1 }; ++ ++ enable_clocks(1); ++ if (ch == OMAP_DSS_CHANNEL_LCD) ++ REG_FLD_MOD(DISPC_CONFIG, type, 11, 11); ++ else /* OMAP_DSS_CHANNEL_DIGIT */ ++ REG_FLD_MOD(DISPC_CONFIG, type, 13, 13); ++ ++ dispc_write_reg(tr_reg[ch], trans_key); ++ enable_clocks(0); ++} ++ ++void dispc_get_trans_key(enum omap_channel ch, ++ enum omap_dss_trans_key_type *type, ++ u32 *trans_key) ++{ ++ const struct dispc_reg tr_reg[] = { ++ DISPC_TRANS_COLOR0, DISPC_TRANS_COLOR1 }; ++ ++ enable_clocks(1); ++ if (type) { ++ if (ch == OMAP_DSS_CHANNEL_LCD) ++ *type = REG_GET(DISPC_CONFIG, 11, 11); ++ else if (ch == OMAP_DSS_CHANNEL_DIGIT) ++ *type = REG_GET(DISPC_CONFIG, 13, 13); ++ else ++ BUG(); ++ } ++ ++ if (trans_key) ++ *trans_key = dispc_read_reg(tr_reg[ch]); ++ enable_clocks(0); ++} ++ ++void dispc_enable_trans_key(enum omap_channel ch, bool enable) ++{ ++ enable_clocks(1); ++ if (ch == OMAP_DSS_CHANNEL_LCD) ++ REG_FLD_MOD(DISPC_CONFIG, enable, 10, 10); ++ else /* OMAP_DSS_CHANNEL_DIGIT */ ++ REG_FLD_MOD(DISPC_CONFIG, enable, 12, 12); ++ enable_clocks(0); ++} ++void dispc_enable_alpha_blending(enum omap_channel ch, bool enable) ++{ ++ enable_clocks(1); ++ if (ch == OMAP_DSS_CHANNEL_LCD) ++ REG_FLD_MOD(DISPC_CONFIG, enable, 18, 18); ++ else /* OMAP_DSS_CHANNEL_DIGIT */ ++ REG_FLD_MOD(DISPC_CONFIG, enable, 19, 19); ++ enable_clocks(0); ++} ++bool dispc_alpha_blending_enabled(enum omap_channel ch) ++{ ++ bool enabled; ++ ++ enable_clocks(1); ++ if (ch == OMAP_DSS_CHANNEL_LCD) ++ enabled = REG_GET(DISPC_CONFIG, 18, 18); ++ else if (ch == OMAP_DSS_CHANNEL_DIGIT) ++ enabled = REG_GET(DISPC_CONFIG, 18, 18); ++ else ++ BUG(); ++ enable_clocks(0); ++ ++ return enabled; ++ ++} ++ ++ ++bool dispc_trans_key_enabled(enum omap_channel ch) ++{ ++ bool enabled; ++ ++ enable_clocks(1); ++ if (ch == OMAP_DSS_CHANNEL_LCD) ++ enabled = REG_GET(DISPC_CONFIG, 10, 10); ++ else if (ch == OMAP_DSS_CHANNEL_DIGIT) ++ enabled = REG_GET(DISPC_CONFIG, 12, 12); ++ else ++ BUG(); ++ enable_clocks(0); ++ ++ return enabled; ++} ++ ++ ++void dispc_set_tft_data_lines(u8 data_lines) ++{ ++ int code; ++ ++ switch (data_lines) { ++ case 12: ++ code = 0; ++ break; ++ case 16: ++ code = 1; ++ break; ++ case 18: ++ code = 2; ++ break; ++ case 24: ++ code = 3; ++ break; ++ default: ++ BUG(); ++ return; ++ } ++ ++ enable_clocks(1); ++ REG_FLD_MOD(DISPC_CONTROL, code, 9, 8); ++ enable_clocks(0); ++} ++ ++void dispc_set_parallel_interface_mode(enum omap_parallel_interface_mode mode) ++{ ++ u32 l; ++ int stallmode; ++ int gpout0 = 1; ++ int gpout1; ++ ++ switch (mode) { ++ case OMAP_DSS_PARALLELMODE_BYPASS: ++ stallmode = 0; ++ gpout1 = 1; ++ break; ++ ++ case OMAP_DSS_PARALLELMODE_RFBI: ++ stallmode = 1; ++ gpout1 = 0; ++ break; ++ ++ case OMAP_DSS_PARALLELMODE_DSI: ++ stallmode = 1; ++ gpout1 = 1; ++ break; ++ ++ default: ++ BUG(); ++ return; ++ } ++ ++ enable_clocks(1); ++ ++ l = dispc_read_reg(DISPC_CONTROL); ++ ++ l = FLD_MOD(l, stallmode, 11, 11); ++ l = FLD_MOD(l, gpout0, 15, 15); ++ l = FLD_MOD(l, gpout1, 16, 16); ++ ++ dispc_write_reg(DISPC_CONTROL, l); ++ ++ enable_clocks(0); ++} ++ ++static bool _dispc_lcd_timings_ok(int hsw, int hfp, int hbp, ++ int vsw, int vfp, int vbp) ++{ ++ if (cpu_is_omap24xx() || omap_rev() < OMAP3430_REV_ES3_0) { ++ if (hsw < 1 || hsw > 64 || ++ hfp < 1 || hfp > 256 || ++ hbp < 1 || hbp > 256 || ++ vsw < 1 || vsw > 64 || ++ vfp < 0 || vfp > 255 || ++ vbp < 0 || vbp > 255) ++ return false; ++ } else { ++ if (hsw < 1 || hsw > 256 || ++ hfp < 1 || hfp > 4096 || ++ hbp < 1 || hbp > 4096 || ++ vsw < 1 || vsw > 256 || ++ vfp < 0 || vfp > 4095 || ++ vbp < 0 || vbp > 4095) ++ return false; ++ } ++ ++ return true; ++} ++ ++bool dispc_lcd_timings_ok(struct omap_video_timings *timings) ++{ ++ return _dispc_lcd_timings_ok(timings->hsw, timings->hfp, ++ timings->hbp, timings->vsw, ++ timings->vfp, timings->vbp); ++} ++ ++static void _dispc_set_lcd_timings(int hsw, int hfp, int hbp, ++ int vsw, int vfp, int vbp) ++{ ++ u32 timing_h, timing_v; ++ ++ if (cpu_is_omap24xx() || omap_rev() < OMAP3430_REV_ES3_0) { ++ timing_h = FLD_VAL(hsw-1, 5, 0) | FLD_VAL(hfp-1, 15, 8) | ++ FLD_VAL(hbp-1, 27, 20); ++ ++ timing_v = FLD_VAL(vsw-1, 5, 0) | FLD_VAL(vfp, 15, 8) | ++ FLD_VAL(vbp, 27, 20); ++ } else { ++ timing_h = FLD_VAL(hsw-1, 7, 0) | FLD_VAL(hfp-1, 19, 8) | ++ FLD_VAL(hbp-1, 31, 20); ++ ++ timing_v = FLD_VAL(vsw-1, 7, 0) | FLD_VAL(vfp, 19, 8) | ++ FLD_VAL(vbp, 31, 20); ++ } ++ ++ enable_clocks(1); ++ dispc_write_reg(DISPC_TIMING_H, timing_h); ++ dispc_write_reg(DISPC_TIMING_V, timing_v); ++ enable_clocks(0); ++} ++ ++/* change name to mode? */ ++void dispc_set_lcd_timings(struct omap_video_timings *timings) ++{ ++ unsigned xtot, ytot; ++ unsigned long ht, vt; ++ ++ if (!_dispc_lcd_timings_ok(timings->hsw, timings->hfp, ++ timings->hbp, timings->vsw, ++ timings->vfp, timings->vbp)) ++ BUG(); ++ ++ _dispc_set_lcd_timings(timings->hsw, timings->hfp, timings->hbp, ++ timings->vsw, timings->vfp, timings->vbp); ++ ++ dispc_set_lcd_size(timings->x_res, timings->y_res); ++ ++ xtot = timings->x_res + timings->hfp + timings->hsw + timings->hbp; ++ ytot = timings->y_res + timings->vfp + timings->vsw + timings->vbp; ++ ++ ht = (timings->pixel_clock * 1000) / xtot; ++ vt = (timings->pixel_clock * 1000) / xtot / ytot; ++ ++ DSSDBG("xres %u yres %u\n", timings->x_res, timings->y_res); ++ DSSDBG("pck %u\n", timings->pixel_clock); ++ DSSDBG("hsw %d hfp %d hbp %d vsw %d vfp %d vbp %d\n", ++ timings->hsw, timings->hfp, timings->hbp, ++ timings->vsw, timings->vfp, timings->vbp); ++ ++ DSSDBG("hsync %luHz, vsync %luHz\n", ht, vt); ++} ++ ++void dispc_set_lcd_divisor(u16 lck_div, u16 pck_div) ++{ ++ BUG_ON(lck_div < 1); ++ BUG_ON(pck_div < 2); ++ ++ enable_clocks(1); ++ dispc_write_reg(DISPC_DIVISOR, ++ FLD_VAL(lck_div, 23, 16) | FLD_VAL(pck_div, 7, 0)); ++ enable_clocks(0); ++} ++ ++static void dispc_get_lcd_divisor(int *lck_div, int *pck_div) ++{ ++ u32 l; ++ l = dispc_read_reg(DISPC_DIVISOR); ++ *lck_div = FLD_GET(l, 23, 16); ++ *pck_div = FLD_GET(l, 7, 0); ++} ++ ++unsigned long dispc_fclk_rate(void) ++{ ++ unsigned long r = 0; ++ ++ if (dss_get_dispc_clk_source() == 0) ++ r = dss_clk_get_rate(DSS_CLK_FCK1); ++ else ++#ifdef CONFIG_OMAP2_DSS_DSI ++ r = dsi_get_dsi1_pll_rate(); ++#else ++ BUG(); ++#endif ++ return r; ++} ++ ++unsigned long dispc_lclk_rate(void) ++{ ++ int lcd; ++ unsigned long r; ++ u32 l; ++ ++ l = dispc_read_reg(DISPC_DIVISOR); ++ ++ lcd = FLD_GET(l, 23, 16); ++ ++ r = dispc_fclk_rate(); ++ ++ return r / lcd; ++} ++ ++unsigned long dispc_pclk_rate(void) ++{ ++ int lcd, pcd; ++ unsigned long r; ++ u32 l; ++ ++ l = dispc_read_reg(DISPC_DIVISOR); ++ ++ lcd = FLD_GET(l, 23, 16); ++ pcd = FLD_GET(l, 7, 0); ++ ++ r = dispc_fclk_rate(); ++ ++ return r / lcd / pcd; ++} ++ ++void dispc_dump_clocks(struct seq_file *s) ++{ ++ int lcd, pcd; ++ ++ enable_clocks(1); ++ ++ dispc_get_lcd_divisor(&lcd, &pcd); ++ ++ seq_printf(s, "- dispc -\n"); ++ ++ seq_printf(s, "dispc fclk source = %s\n", ++ dss_get_dispc_clk_source() == 0 ? ++ "dss1_alwon_fclk" : "dsi1_pll_fclk"); ++ ++ seq_printf(s, "pixel clk = %lu / %d / %d = %lu\n", ++ dispc_fclk_rate(), ++ lcd, pcd, ++ dispc_pclk_rate()); ++ ++ enable_clocks(0); ++} ++ ++void dispc_dump_regs(struct seq_file *s) ++{ ++#define DUMPREG(r) seq_printf(s, "%-35s %08x\n", #r, dispc_read_reg(r)) ++ ++ dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1); ++ ++ DUMPREG(DISPC_REVISION); ++ DUMPREG(DISPC_SYSCONFIG); ++ DUMPREG(DISPC_SYSSTATUS); ++ DUMPREG(DISPC_IRQSTATUS); ++ DUMPREG(DISPC_IRQENABLE); ++ DUMPREG(DISPC_CONTROL); ++ DUMPREG(DISPC_CONFIG); ++ DUMPREG(DISPC_CAPABLE); ++ DUMPREG(DISPC_DEFAULT_COLOR0); ++ DUMPREG(DISPC_DEFAULT_COLOR1); ++ DUMPREG(DISPC_TRANS_COLOR0); ++ DUMPREG(DISPC_TRANS_COLOR1); ++ DUMPREG(DISPC_LINE_STATUS); ++ DUMPREG(DISPC_LINE_NUMBER); ++ DUMPREG(DISPC_TIMING_H); ++ DUMPREG(DISPC_TIMING_V); ++ DUMPREG(DISPC_POL_FREQ); ++ DUMPREG(DISPC_DIVISOR); ++ DUMPREG(DISPC_GLOBAL_ALPHA); ++ DUMPREG(DISPC_SIZE_DIG); ++ DUMPREG(DISPC_SIZE_LCD); ++ ++ DUMPREG(DISPC_GFX_BA0); ++ DUMPREG(DISPC_GFX_BA1); ++ DUMPREG(DISPC_GFX_POSITION); ++ DUMPREG(DISPC_GFX_SIZE); ++ DUMPREG(DISPC_GFX_ATTRIBUTES); ++ DUMPREG(DISPC_GFX_FIFO_THRESHOLD); ++ DUMPREG(DISPC_GFX_FIFO_SIZE_STATUS); ++ DUMPREG(DISPC_GFX_ROW_INC); ++ DUMPREG(DISPC_GFX_PIXEL_INC); ++ DUMPREG(DISPC_GFX_WINDOW_SKIP); ++ DUMPREG(DISPC_GFX_TABLE_BA); ++ ++ DUMPREG(DISPC_DATA_CYCLE1); ++ DUMPREG(DISPC_DATA_CYCLE2); ++ DUMPREG(DISPC_DATA_CYCLE3); ++ ++ DUMPREG(DISPC_CPR_COEF_R); ++ DUMPREG(DISPC_CPR_COEF_G); ++ DUMPREG(DISPC_CPR_COEF_B); ++ ++ DUMPREG(DISPC_GFX_PRELOAD); ++ ++ DUMPREG(DISPC_VID_BA0(0)); ++ DUMPREG(DISPC_VID_BA1(0)); ++ DUMPREG(DISPC_VID_POSITION(0)); ++ DUMPREG(DISPC_VID_SIZE(0)); ++ DUMPREG(DISPC_VID_ATTRIBUTES(0)); ++ DUMPREG(DISPC_VID_FIFO_THRESHOLD(0)); ++ DUMPREG(DISPC_VID_FIFO_SIZE_STATUS(0)); ++ DUMPREG(DISPC_VID_ROW_INC(0)); ++ DUMPREG(DISPC_VID_PIXEL_INC(0)); ++ DUMPREG(DISPC_VID_FIR(0)); ++ DUMPREG(DISPC_VID_PICTURE_SIZE(0)); ++ DUMPREG(DISPC_VID_ACCU0(0)); ++ DUMPREG(DISPC_VID_ACCU1(0)); ++ ++ DUMPREG(DISPC_VID_BA0(1)); ++ DUMPREG(DISPC_VID_BA1(1)); ++ DUMPREG(DISPC_VID_POSITION(1)); ++ DUMPREG(DISPC_VID_SIZE(1)); ++ DUMPREG(DISPC_VID_ATTRIBUTES(1)); ++ DUMPREG(DISPC_VID_FIFO_THRESHOLD(1)); ++ DUMPREG(DISPC_VID_FIFO_SIZE_STATUS(1)); ++ DUMPREG(DISPC_VID_ROW_INC(1)); ++ DUMPREG(DISPC_VID_PIXEL_INC(1)); ++ DUMPREG(DISPC_VID_FIR(1)); ++ DUMPREG(DISPC_VID_PICTURE_SIZE(1)); ++ DUMPREG(DISPC_VID_ACCU0(1)); ++ DUMPREG(DISPC_VID_ACCU1(1)); ++ ++ DUMPREG(DISPC_VID_FIR_COEF_H(0, 0)); ++ DUMPREG(DISPC_VID_FIR_COEF_H(0, 1)); ++ DUMPREG(DISPC_VID_FIR_COEF_H(0, 2)); ++ DUMPREG(DISPC_VID_FIR_COEF_H(0, 3)); ++ DUMPREG(DISPC_VID_FIR_COEF_H(0, 4)); ++ DUMPREG(DISPC_VID_FIR_COEF_H(0, 5)); ++ DUMPREG(DISPC_VID_FIR_COEF_H(0, 6)); ++ DUMPREG(DISPC_VID_FIR_COEF_H(0, 7)); ++ DUMPREG(DISPC_VID_FIR_COEF_HV(0, 0)); ++ DUMPREG(DISPC_VID_FIR_COEF_HV(0, 1)); ++ DUMPREG(DISPC_VID_FIR_COEF_HV(0, 2)); ++ DUMPREG(DISPC_VID_FIR_COEF_HV(0, 3)); ++ DUMPREG(DISPC_VID_FIR_COEF_HV(0, 4)); ++ DUMPREG(DISPC_VID_FIR_COEF_HV(0, 5)); ++ DUMPREG(DISPC_VID_FIR_COEF_HV(0, 6)); ++ DUMPREG(DISPC_VID_FIR_COEF_HV(0, 7)); ++ DUMPREG(DISPC_VID_CONV_COEF(0, 0)); ++ DUMPREG(DISPC_VID_CONV_COEF(0, 1)); ++ DUMPREG(DISPC_VID_CONV_COEF(0, 2)); ++ DUMPREG(DISPC_VID_CONV_COEF(0, 3)); ++ DUMPREG(DISPC_VID_CONV_COEF(0, 4)); ++ DUMPREG(DISPC_VID_FIR_COEF_V(0, 0)); ++ DUMPREG(DISPC_VID_FIR_COEF_V(0, 1)); ++ DUMPREG(DISPC_VID_FIR_COEF_V(0, 2)); ++ DUMPREG(DISPC_VID_FIR_COEF_V(0, 3)); ++ DUMPREG(DISPC_VID_FIR_COEF_V(0, 4)); ++ DUMPREG(DISPC_VID_FIR_COEF_V(0, 5)); ++ DUMPREG(DISPC_VID_FIR_COEF_V(0, 6)); ++ DUMPREG(DISPC_VID_FIR_COEF_V(0, 7)); ++ ++ DUMPREG(DISPC_VID_FIR_COEF_H(1, 0)); ++ DUMPREG(DISPC_VID_FIR_COEF_H(1, 1)); ++ DUMPREG(DISPC_VID_FIR_COEF_H(1, 2)); ++ DUMPREG(DISPC_VID_FIR_COEF_H(1, 3)); ++ DUMPREG(DISPC_VID_FIR_COEF_H(1, 4)); ++ DUMPREG(DISPC_VID_FIR_COEF_H(1, 5)); ++ DUMPREG(DISPC_VID_FIR_COEF_H(1, 6)); ++ DUMPREG(DISPC_VID_FIR_COEF_H(1, 7)); ++ DUMPREG(DISPC_VID_FIR_COEF_HV(1, 0)); ++ DUMPREG(DISPC_VID_FIR_COEF_HV(1, 1)); ++ DUMPREG(DISPC_VID_FIR_COEF_HV(1, 2)); ++ DUMPREG(DISPC_VID_FIR_COEF_HV(1, 3)); ++ DUMPREG(DISPC_VID_FIR_COEF_HV(1, 4)); ++ DUMPREG(DISPC_VID_FIR_COEF_HV(1, 5)); ++ DUMPREG(DISPC_VID_FIR_COEF_HV(1, 6)); ++ DUMPREG(DISPC_VID_FIR_COEF_HV(1, 7)); ++ DUMPREG(DISPC_VID_CONV_COEF(1, 0)); ++ DUMPREG(DISPC_VID_CONV_COEF(1, 1)); ++ DUMPREG(DISPC_VID_CONV_COEF(1, 2)); ++ DUMPREG(DISPC_VID_CONV_COEF(1, 3)); ++ DUMPREG(DISPC_VID_CONV_COEF(1, 4)); ++ DUMPREG(DISPC_VID_FIR_COEF_V(1, 0)); ++ DUMPREG(DISPC_VID_FIR_COEF_V(1, 1)); ++ DUMPREG(DISPC_VID_FIR_COEF_V(1, 2)); ++ DUMPREG(DISPC_VID_FIR_COEF_V(1, 3)); ++ DUMPREG(DISPC_VID_FIR_COEF_V(1, 4)); ++ DUMPREG(DISPC_VID_FIR_COEF_V(1, 5)); ++ DUMPREG(DISPC_VID_FIR_COEF_V(1, 6)); ++ DUMPREG(DISPC_VID_FIR_COEF_V(1, 7)); ++ ++ DUMPREG(DISPC_VID_PRELOAD(0)); ++ DUMPREG(DISPC_VID_PRELOAD(1)); ++ ++ dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1); ++#undef DUMPREG ++} ++ ++static void _dispc_set_pol_freq(bool onoff, bool rf, bool ieo, bool ipc, ++ bool ihs, bool ivs, u8 acbi, u8 acb) ++{ ++ u32 l = 0; ++ ++ DSSDBG("onoff %d rf %d ieo %d ipc %d ihs %d ivs %d acbi %d acb %d\n", ++ onoff, rf, ieo, ipc, ihs, ivs, acbi, acb); ++ ++ l |= FLD_VAL(onoff, 17, 17); ++ l |= FLD_VAL(rf, 16, 16); ++ l |= FLD_VAL(ieo, 15, 15); ++ l |= FLD_VAL(ipc, 14, 14); ++ l |= FLD_VAL(ihs, 13, 13); ++ l |= FLD_VAL(ivs, 12, 12); ++ l |= FLD_VAL(acbi, 11, 8); ++ l |= FLD_VAL(acb, 7, 0); ++ ++ enable_clocks(1); ++ dispc_write_reg(DISPC_POL_FREQ, l); ++ enable_clocks(0); ++} ++ ++void dispc_set_pol_freq(enum omap_panel_config config, u8 acbi, u8 acb) ++{ ++ _dispc_set_pol_freq((config & OMAP_DSS_LCD_ONOFF) != 0, ++ (config & OMAP_DSS_LCD_RF) != 0, ++ (config & OMAP_DSS_LCD_IEO) != 0, ++ (config & OMAP_DSS_LCD_IPC) != 0, ++ (config & OMAP_DSS_LCD_IHS) != 0, ++ (config & OMAP_DSS_LCD_IVS) != 0, ++ acbi, acb); ++} ++ ++void find_lck_pck_divs(bool is_tft, unsigned long req_pck, unsigned long fck, ++ u16 *lck_div, u16 *pck_div) ++{ ++ u16 pcd_min = is_tft ? 2 : 3; ++ unsigned long best_pck; ++ u16 best_ld, cur_ld; ++ u16 best_pd, cur_pd; ++ ++ best_pck = 0; ++ best_ld = 0; ++ best_pd = 0; ++ ++ for (cur_ld = 1; cur_ld <= 255; ++cur_ld) { ++ unsigned long lck = fck / cur_ld; ++ ++ for (cur_pd = pcd_min; cur_pd <= 255; ++cur_pd) { ++ unsigned long pck = lck / cur_pd; ++ long old_delta = abs(best_pck - req_pck); ++ long new_delta = abs(pck - req_pck); ++ ++ if (best_pck == 0 || new_delta < old_delta) { ++ best_pck = pck; ++ best_ld = cur_ld; ++ best_pd = cur_pd; ++ ++ if (pck == req_pck) ++ goto found; ++ } ++ ++ if (pck < req_pck) ++ break; ++ } ++ ++ if (lck / pcd_min < req_pck) ++ break; ++ } ++ ++found: ++ *lck_div = best_ld; ++ *pck_div = best_pd; ++} ++ ++int dispc_calc_clock_div(bool is_tft, unsigned long req_pck, ++ struct dispc_clock_info *cinfo) ++{ ++ unsigned long prate; ++ struct dispc_clock_info cur, best; ++ int match = 0; ++ int min_fck_per_pck; ++ unsigned long fck_rate = dss_clk_get_rate(DSS_CLK_FCK1); ++ ++ if (cpu_is_omap34xx()) ++ prate = clk_get_rate(clk_get_parent(dispc.dpll4_m4_ck)); ++ else ++ prate = 0; ++ ++ if (req_pck == dispc.cache_req_pck && ++ ((cpu_is_omap34xx() && prate == dispc.cache_prate) || ++ dispc.cache_cinfo.fck == fck_rate)) { ++ DSSDBG("dispc clock info found from cache.\n"); ++ *cinfo = dispc.cache_cinfo; ++ return 0; ++ } ++ ++ min_fck_per_pck = CONFIG_OMAP2_DSS_MIN_FCK_PER_PCK; ++ ++ if (min_fck_per_pck && ++ req_pck * min_fck_per_pck > DISPC_MAX_FCK) { ++ DSSERR("Requested pixel clock not possible with the current " ++ "OMAP2_DSS_MIN_FCK_PER_PCK setting. Turning " ++ "the constraint off.\n"); ++ min_fck_per_pck = 0; ++ } ++ ++retry: ++ memset(&cur, 0, sizeof(cur)); ++ memset(&best, 0, sizeof(best)); ++ ++ if (cpu_is_omap24xx()) { ++ /* XXX can we change the clock on omap2? */ ++ cur.fck = dss_clk_get_rate(DSS_CLK_FCK1); ++ cur.fck_div = 1; ++ ++ match = 1; ++ ++ find_lck_pck_divs(is_tft, req_pck, cur.fck, ++ &cur.lck_div, &cur.pck_div); ++ ++ cur.lck = cur.fck / cur.lck_div; ++ cur.pck = cur.lck / cur.pck_div; ++ ++ best = cur; ++ ++ goto found; ++ } else if (cpu_is_omap34xx()) { ++ for (cur.fck_div = 16; cur.fck_div > 0; --cur.fck_div) { ++ cur.fck = prate / cur.fck_div * 2; ++ ++ if (cur.fck > DISPC_MAX_FCK) ++ continue; ++ ++ if (min_fck_per_pck && ++ cur.fck < req_pck * min_fck_per_pck) ++ continue; ++ ++ match = 1; ++ ++ find_lck_pck_divs(is_tft, req_pck, cur.fck, ++ &cur.lck_div, &cur.pck_div); ++ ++ cur.lck = cur.fck / cur.lck_div; ++ cur.pck = cur.lck / cur.pck_div; ++ ++ if (abs(cur.pck - req_pck) < abs(best.pck - req_pck)) { ++ best = cur; ++ ++ if (cur.pck == req_pck) ++ goto found; ++ } ++ } ++ } else { ++ BUG(); ++ } ++ ++found: ++ if (!match) { ++ if (min_fck_per_pck) { ++ DSSERR("Could not find suitable clock settings.\n" ++ "Turning FCK/PCK constraint off and" ++ "trying again.\n"); ++ min_fck_per_pck = 0; ++ goto retry; ++ } ++ ++ DSSERR("Could not find suitable clock settings.\n"); ++ ++ return -EINVAL; ++ } ++ ++ if (cinfo) ++ *cinfo = best; ++ ++ dispc.cache_req_pck = req_pck; ++ dispc.cache_prate = prate; ++ dispc.cache_cinfo = best; ++ ++ return 0; ++} ++ ++int dispc_set_clock_div(struct dispc_clock_info *cinfo) ++{ ++ unsigned long prate; ++ int r; ++ ++ if (cpu_is_omap34xx()) { ++ prate = clk_get_rate(clk_get_parent(dispc.dpll4_m4_ck)); ++ DSSDBG("dpll4_m4 = %ld\n", prate); ++ } ++ ++ DSSDBG("fck = %ld (%d)\n", cinfo->fck, cinfo->fck_div); ++ DSSDBG("lck = %ld (%d)\n", cinfo->lck, cinfo->lck_div); ++ DSSDBG("pck = %ld (%d)\n", cinfo->pck, cinfo->pck_div); ++ ++ if (cpu_is_omap34xx()) { ++ r = clk_set_rate(dispc.dpll4_m4_ck, prate / cinfo->fck_div); ++ if (r) ++ return r; ++ } ++ ++ dispc_set_lcd_divisor(cinfo->lck_div, cinfo->pck_div); ++ ++ return 0; ++} ++ ++int dispc_get_clock_div(struct dispc_clock_info *cinfo) ++{ ++ cinfo->fck = dss_clk_get_rate(DSS_CLK_FCK1); ++ ++ if (cpu_is_omap34xx()) { ++ unsigned long prate; ++ prate = clk_get_rate(clk_get_parent(dispc.dpll4_m4_ck)); ++ cinfo->fck_div = prate / (cinfo->fck / 2); ++ } else { ++ cinfo->fck_div = 0; ++ } ++ ++ cinfo->lck_div = REG_GET(DISPC_DIVISOR, 23, 16); ++ cinfo->pck_div = REG_GET(DISPC_DIVISOR, 7, 0); ++ ++ cinfo->lck = cinfo->fck / cinfo->lck_div; ++ cinfo->pck = cinfo->lck / cinfo->pck_div; ++ ++ return 0; ++} ++ ++/* dispc.irq_lock has to be locked by the caller */ ++static void _omap_dispc_set_irqs(void) ++{ ++ u32 mask; ++ u32 old_mask; ++ int i; ++ struct omap_dispc_isr_data *isr_data; ++ ++ mask = dispc.irq_error_mask; ++ ++ for (i = 0; i < DISPC_MAX_NR_ISRS; i++) { ++ isr_data = &dispc.registered_isr[i]; ++ ++ if (isr_data->isr == NULL) ++ continue; ++ ++ mask |= isr_data->mask; ++ } ++ ++ enable_clocks(1); ++ ++ old_mask = dispc_read_reg(DISPC_IRQENABLE); ++ /* clear the irqstatus for newly enabled irqs */ ++ dispc_write_reg(DISPC_IRQSTATUS, (mask ^ old_mask) & mask); ++ ++ dispc_write_reg(DISPC_IRQENABLE, mask); ++ ++ enable_clocks(0); ++} ++ ++int omap_dispc_register_isr(omap_dispc_isr_t isr, void *arg, u32 mask) ++{ ++ int i; ++ int ret; ++ unsigned long flags; ++ struct omap_dispc_isr_data *isr_data; ++ ++ if (isr == NULL) ++ return -EINVAL; ++ ++ spin_lock_irqsave(&dispc.irq_lock, flags); ++ ++ /* check for duplicate entry */ ++ for (i = 0; i < DISPC_MAX_NR_ISRS; i++) { ++ isr_data = &dispc.registered_isr[i]; ++ if (isr_data->isr == isr && isr_data->arg == arg && ++ isr_data->mask == mask) { ++ ret = -EINVAL; ++ goto err; ++ } ++ } ++ ++ isr_data = NULL; ++ ret = -EBUSY; ++ ++ for (i = 0; i < DISPC_MAX_NR_ISRS; i++) { ++ isr_data = &dispc.registered_isr[i]; ++ ++ if (isr_data->isr != NULL) ++ continue; ++ ++ isr_data->isr = isr; ++ isr_data->arg = arg; ++ isr_data->mask = mask; ++ ret = 0; ++ ++ break; ++ } ++ ++ _omap_dispc_set_irqs(); ++ ++ spin_unlock_irqrestore(&dispc.irq_lock, flags); ++ ++ return 0; ++err: ++ spin_unlock_irqrestore(&dispc.irq_lock, flags); ++ ++ return ret; ++} ++EXPORT_SYMBOL(omap_dispc_register_isr); ++ ++int omap_dispc_unregister_isr(omap_dispc_isr_t isr, void *arg, u32 mask) ++{ ++ int i; ++ unsigned long flags; ++ int ret = -EINVAL; ++ struct omap_dispc_isr_data *isr_data; ++ ++ spin_lock_irqsave(&dispc.irq_lock, flags); ++ ++ for (i = 0; i < DISPC_MAX_NR_ISRS; i++) { ++ isr_data = &dispc.registered_isr[i]; ++ if (isr_data->isr != isr || isr_data->arg != arg || ++ isr_data->mask != mask) ++ continue; ++ ++ /* found the correct isr */ ++ ++ isr_data->isr = NULL; ++ isr_data->arg = NULL; ++ isr_data->mask = 0; ++ ++ ret = 0; ++ break; ++ } ++ ++ if (ret == 0) ++ _omap_dispc_set_irqs(); ++ ++ spin_unlock_irqrestore(&dispc.irq_lock, flags); ++ ++ return ret; ++} ++EXPORT_SYMBOL(omap_dispc_unregister_isr); ++ ++#ifdef DEBUG ++static void print_irq_status(u32 status) ++{ ++ if ((status & dispc.irq_error_mask) == 0) ++ return; ++ ++ printk(KERN_DEBUG "DISPC IRQ: 0x%x: ", status); ++ ++#define PIS(x) \ ++ if (status & DISPC_IRQ_##x) \ ++ printk(#x " "); ++ PIS(GFX_FIFO_UNDERFLOW); ++ PIS(OCP_ERR); ++ PIS(VID1_FIFO_UNDERFLOW); ++ PIS(VID2_FIFO_UNDERFLOW); ++ PIS(SYNC_LOST); ++ PIS(SYNC_LOST_DIGIT); ++#undef PIS ++ ++ printk("\n"); ++} ++#endif ++ ++/* Called from dss.c. Note that we don't touch clocks here, ++ * but we presume they are on because we got an IRQ. However, ++ * an irq handler may turn the clocks off, so we may not have ++ * clock later in the function. */ ++void dispc_irq_handler(void) ++{ ++ int i; ++ u32 irqstatus; ++ u32 handledirqs = 0; ++ u32 unhandled_errors; ++ struct omap_dispc_isr_data *isr_data; ++ struct omap_dispc_isr_data registered_isr[DISPC_MAX_NR_ISRS]; ++ ++ spin_lock(&dispc.irq_lock); ++ ++ irqstatus = dispc_read_reg(DISPC_IRQSTATUS); ++ ++#ifdef DEBUG ++ if (dss_debug) ++ print_irq_status(irqstatus); ++#endif ++ /* Ack the interrupt. Do it here before clocks are possibly turned ++ * off */ ++ dispc_write_reg(DISPC_IRQSTATUS, irqstatus); ++ ++ /* make a copy and unlock, so that isrs can unregister ++ * themselves */ ++ memcpy(registered_isr, dispc.registered_isr, ++ sizeof(registered_isr)); ++ ++ spin_unlock(&dispc.irq_lock); ++ ++ for (i = 0; i < DISPC_MAX_NR_ISRS; i++) { ++ isr_data = ®istered_isr[i]; ++ ++ if (!isr_data->isr) ++ continue; ++ ++ if (isr_data->mask & irqstatus) { ++ isr_data->isr(isr_data->arg, irqstatus); ++ handledirqs |= isr_data->mask; ++ } ++ } ++ ++ spin_lock(&dispc.irq_lock); ++ ++ unhandled_errors = irqstatus & ~handledirqs & dispc.irq_error_mask; ++ ++ if (unhandled_errors) { ++ dispc.error_irqs |= unhandled_errors; ++ ++ dispc.irq_error_mask &= ~unhandled_errors; ++ _omap_dispc_set_irqs(); ++ ++ schedule_work(&dispc.error_work); ++ } ++ ++ spin_unlock(&dispc.irq_lock); ++} ++ ++static void dispc_error_worker(struct work_struct *work) ++{ ++ int i; ++ u32 errors; ++ unsigned long flags; ++ ++ spin_lock_irqsave(&dispc.irq_lock, flags); ++ errors = dispc.error_irqs; ++ dispc.error_irqs = 0; ++ spin_unlock_irqrestore(&dispc.irq_lock, flags); ++ ++ if (errors & DISPC_IRQ_GFX_FIFO_UNDERFLOW) { ++ DSSERR("GFX_FIFO_UNDERFLOW, disabling GFX\n"); ++ for (i = 0; i < omap_dss_get_num_overlays(); ++i) { ++ struct omap_overlay *ovl; ++ ovl = omap_dss_get_overlay(i); ++ ++ if (!(ovl->caps & OMAP_DSS_OVL_CAP_DISPC)) ++ continue; ++ ++ if (ovl->id == 0) { ++ dispc_enable_plane(ovl->id, 0); ++ dispc_go(ovl->manager->id); ++ mdelay(50); ++ break; ++ } ++ } ++ } ++ ++ if (errors & DISPC_IRQ_VID1_FIFO_UNDERFLOW) { ++ DSSERR("VID1_FIFO_UNDERFLOW, disabling VID1\n"); ++ for (i = 0; i < omap_dss_get_num_overlays(); ++i) { ++ struct omap_overlay *ovl; ++ ovl = omap_dss_get_overlay(i); ++ ++ if (!(ovl->caps & OMAP_DSS_OVL_CAP_DISPC)) ++ continue; ++ ++ if (ovl->id == 1) { ++ dispc_enable_plane(ovl->id, 0); ++ dispc_go(ovl->manager->id); ++ mdelay(50); ++ break; ++ } ++ } ++ } ++ ++ if (errors & DISPC_IRQ_VID2_FIFO_UNDERFLOW) { ++ DSSERR("VID2_FIFO_UNDERFLOW, disabling VID2\n"); ++ for (i = 0; i < omap_dss_get_num_overlays(); ++i) { ++ struct omap_overlay *ovl; ++ ovl = omap_dss_get_overlay(i); ++ ++ if (!(ovl->caps & OMAP_DSS_OVL_CAP_DISPC)) ++ continue; ++ ++ if (ovl->id == 2) { ++ dispc_enable_plane(ovl->id, 0); ++ dispc_go(ovl->manager->id); ++ mdelay(50); ++ break; ++ } ++ } ++ } ++ ++ if (errors & DISPC_IRQ_SYNC_LOST) { ++ struct omap_overlay_manager *manager = NULL; ++ bool enable = false; ++ ++ DSSERR("SYNC_LOST, disabling LCD\n"); ++ ++ for (i = 0; i < omap_dss_get_num_overlay_managers(); ++i) { ++ struct omap_overlay_manager *mgr; ++ mgr = omap_dss_get_overlay_manager(i); ++ ++ if (mgr->id == OMAP_DSS_CHANNEL_LCD) { ++ manager = mgr; ++ enable = mgr->device->state == ++ OMAP_DSS_DISPLAY_ACTIVE; ++ mgr->device->disable(mgr->device); ++ break; ++ } ++ } ++ ++ if (manager) { ++ for (i = 0; i < omap_dss_get_num_overlays(); ++i) { ++ struct omap_overlay *ovl; ++ ovl = omap_dss_get_overlay(i); ++ ++ if (!(ovl->caps & OMAP_DSS_OVL_CAP_DISPC)) ++ continue; ++ ++ if (ovl->id != 0 && ovl->manager == manager) ++ dispc_enable_plane(ovl->id, 0); ++ } ++ ++ dispc_go(manager->id); ++ mdelay(50); ++ if (enable) ++ manager->device->enable(manager->device); ++ } ++ } ++ ++ if (errors & DISPC_IRQ_SYNC_LOST_DIGIT) { ++ struct omap_overlay_manager *manager = NULL; ++ bool enable = false; ++ ++ DSSERR("SYNC_LOST_DIGIT, disabling TV\n"); ++ ++ for (i = 0; i < omap_dss_get_num_overlay_managers(); ++i) { ++ struct omap_overlay_manager *mgr; ++ mgr = omap_dss_get_overlay_manager(i); ++ ++ if (mgr->id == OMAP_DSS_CHANNEL_DIGIT) { ++ manager = mgr; ++ enable = mgr->device->state == ++ OMAP_DSS_DISPLAY_ACTIVE; ++ mgr->device->disable(mgr->device); ++ break; ++ } ++ } ++ ++ if (manager) { ++ for (i = 0; i < omap_dss_get_num_overlays(); ++i) { ++ struct omap_overlay *ovl; ++ ovl = omap_dss_get_overlay(i); ++ ++ if (!(ovl->caps & OMAP_DSS_OVL_CAP_DISPC)) ++ continue; ++ ++ if (ovl->id != 0 && ovl->manager == manager) ++ dispc_enable_plane(ovl->id, 0); ++ } ++ ++ dispc_go(manager->id); ++ mdelay(50); ++ if (enable) ++ manager->device->enable(manager->device); ++ } ++ } ++ ++ if (errors & DISPC_IRQ_OCP_ERR) { ++ DSSERR("OCP_ERR\n"); ++ for (i = 0; i < omap_dss_get_num_overlay_managers(); ++i) { ++ struct omap_overlay_manager *mgr; ++ mgr = omap_dss_get_overlay_manager(i); ++ ++ if (mgr->caps & OMAP_DSS_OVL_CAP_DISPC) ++ mgr->device->disable(mgr->device); ++ } ++ } ++ ++ spin_lock_irqsave(&dispc.irq_lock, flags); ++ dispc.irq_error_mask |= errors; ++ _omap_dispc_set_irqs(); ++ spin_unlock_irqrestore(&dispc.irq_lock, flags); ++} ++ ++int omap_dispc_wait_for_irq_timeout(u32 irqmask, unsigned long timeout) ++{ ++ void dispc_irq_wait_handler(void *data, u32 mask) ++ { ++ complete((struct completion *)data); ++ } ++ ++ int r; ++ DECLARE_COMPLETION_ONSTACK(completion); ++ ++ r = omap_dispc_register_isr(dispc_irq_wait_handler, &completion, ++ irqmask); ++ ++ if (r) ++ return r; ++ ++ timeout = wait_for_completion_timeout(&completion, timeout); ++ ++ omap_dispc_unregister_isr(dispc_irq_wait_handler, &completion, irqmask); ++ ++ if (timeout == 0) ++ return -ETIMEDOUT; ++ ++ if (timeout == -ERESTARTSYS) ++ return -ERESTARTSYS; ++ ++ return 0; ++} ++ ++int omap_dispc_wait_for_irq_interruptible_timeout(u32 irqmask, ++ unsigned long timeout) ++{ ++ void dispc_irq_wait_handler(void *data, u32 mask) ++ { ++ complete((struct completion *)data); ++ } ++ ++ int r; ++ DECLARE_COMPLETION_ONSTACK(completion); ++ ++ r = omap_dispc_register_isr(dispc_irq_wait_handler, &completion, ++ irqmask); ++ ++ if (r) ++ return r; ++ ++ timeout = wait_for_completion_interruptible_timeout(&completion, ++ timeout); ++ ++ omap_dispc_unregister_isr(dispc_irq_wait_handler, &completion, irqmask); ++ ++ if (timeout == 0) ++ return -ETIMEDOUT; ++ ++ if (timeout == -ERESTARTSYS) ++ return -ERESTARTSYS; ++ ++ return 0; ++} ++ ++#ifdef CONFIG_OMAP2_DSS_FAKE_VSYNC ++void dispc_fake_vsync_irq(void) ++{ ++ u32 irqstatus = DISPC_IRQ_VSYNC; ++ int i; ++ ++ for (i = 0; i < DISPC_MAX_NR_ISRS; i++) { ++ struct omap_dispc_isr_data *isr_data; ++ isr_data = &dispc.registered_isr[i]; ++ ++ if (!isr_data->isr) ++ continue; ++ ++ if (isr_data->mask & irqstatus) ++ isr_data->isr(isr_data->arg, irqstatus); ++ } ++} ++#endif ++ ++static void _omap_dispc_initialize_irq(void) ++{ ++ unsigned long flags; ++ ++ spin_lock_irqsave(&dispc.irq_lock, flags); ++ ++ memset(dispc.registered_isr, 0, sizeof(dispc.registered_isr)); ++ ++ dispc.irq_error_mask = DISPC_IRQ_MASK_ERROR; ++ ++ /* there's SYNC_LOST_DIGIT waiting after enabling the DSS, ++ * so clear it */ ++ dispc_write_reg(DISPC_IRQSTATUS, dispc_read_reg(DISPC_IRQSTATUS)); ++ ++ _omap_dispc_set_irqs(); ++ ++ spin_unlock_irqrestore(&dispc.irq_lock, flags); ++} ++ ++void dispc_enable_sidle(void) ++{ ++ REG_FLD_MOD(DISPC_SYSCONFIG, 2, 4, 3); /* SIDLEMODE: smart idle */ ++} ++ ++void dispc_disable_sidle(void) ++{ ++ REG_FLD_MOD(DISPC_SYSCONFIG, 1, 4, 3); /* SIDLEMODE: no idle */ ++} ++ ++static void _omap_dispc_initial_config(void) ++{ ++ u32 l; ++ ++ l = dispc_read_reg(DISPC_SYSCONFIG); ++ l = FLD_MOD(l, 2, 13, 12); /* MIDLEMODE: smart standby */ ++ l = FLD_MOD(l, 2, 4, 3); /* SIDLEMODE: smart idle */ ++ l = FLD_MOD(l, 1, 2, 2); /* ENWAKEUP */ ++ l = FLD_MOD(l, 1, 0, 0); /* AUTOIDLE */ ++ dispc_write_reg(DISPC_SYSCONFIG, l); ++ ++ /* FUNCGATED */ ++ REG_FLD_MOD(DISPC_CONFIG, 1, 9, 9); ++ ++ /* L3 firewall setting: enable access to OCM RAM */ ++ if (cpu_is_omap24xx()) ++ __raw_writel(0x402000b0, OMAP2_IO_ADDRESS(0x680050a0)); ++ ++ _dispc_setup_color_conv_coef(); ++ ++ dispc_set_loadmode(OMAP_DSS_LOAD_FRAME_ONLY); ++ ++ dispc_read_plane_fifo_sizes(); ++} ++ ++int dispc_init(void) ++{ ++ u32 rev; ++ ++ spin_lock_init(&dispc.irq_lock); ++ ++ INIT_WORK(&dispc.error_work, dispc_error_worker); ++ ++ dispc.base = ioremap(DISPC_BASE, DISPC_SZ_REGS); ++ if (!dispc.base) { ++ DSSERR("can't ioremap DISPC\n"); ++ return -ENOMEM; ++ } ++ ++ if (cpu_is_omap34xx()) { ++ dispc.dpll4_m4_ck = clk_get(NULL, "dpll4_m4_ck"); ++ if (IS_ERR(dispc.dpll4_m4_ck)) { ++ DSSERR("Failed to get dpll4_m4_ck\n"); ++ return -ENODEV; ++ } ++ } ++ ++ enable_clocks(1); ++ ++ _omap_dispc_initial_config(); ++ ++ _omap_dispc_initialize_irq(); ++ ++ dispc_save_context(); ++ ++ rev = dispc_read_reg(DISPC_REVISION); ++ printk(KERN_INFO "OMAP DISPC rev %d.%d\n", ++ FLD_GET(rev, 7, 4), FLD_GET(rev, 3, 0)); ++ ++ enable_clocks(0); ++ ++ return 0; ++} ++ ++void dispc_exit(void) ++{ ++ if (cpu_is_omap34xx()) ++ clk_put(dispc.dpll4_m4_ck); ++ iounmap(dispc.base); ++} ++ ++int dispc_enable_plane(enum omap_plane plane, bool enable) ++{ ++ DSSDBG("dispc_enable_plane %d, %d\n", plane, enable); ++ ++ enable_clocks(1); ++ _dispc_enable_plane(plane, enable); ++ enable_clocks(0); ++ ++ return 0; ++} ++ ++int dispc_setup_plane(enum omap_plane plane, ++ u32 paddr, u16 screen_width, ++ u16 pos_x, u16 pos_y, ++ u16 width, u16 height, ++ u16 out_width, u16 out_height, ++ enum omap_color_mode color_mode, ++ bool ilace, ++ enum omap_dss_rotation_type rotation_type, ++ u8 rotation, bool mirror, u8 global_alpha) ++{ ++ int r = 0; ++ ++ DSSDBG("dispc_setup_plane %d, pa %x, sw %d, %d,%d, %dx%d -> " ++ "%dx%d, ilace %d, cmode %x, rot %d, mir %d\n", ++ plane, paddr, screen_width, pos_x, pos_y, ++ width, height, ++ out_width, out_height, ++ ilace, color_mode, ++ rotation, mirror); ++ ++ enable_clocks(1); ++ ++ r = _dispc_setup_plane(plane, ++ paddr, screen_width, ++ pos_x, pos_y, ++ width, height, ++ out_width, out_height, ++ color_mode, ilace, ++ rotation_type, ++ rotation, mirror, ++ global_alpha); ++ ++ enable_clocks(0); ++ ++ return r; ++} +diff --git a/drivers/video/omap2/dss/display.c b/drivers/video/omap2/dss/display.c +new file mode 100644 +index 0000000..6b5d0cf +--- /dev/null ++++ b/drivers/video/omap2/dss/display.c +@@ -0,0 +1,658 @@ ++/* ++ * linux/drivers/video/omap2/dss/display.c ++ * ++ * Copyright (C) 2009 Nokia Corporation ++ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com> ++ * ++ * Some code and ideas taken from drivers/video/omap/ driver ++ * by Imre Deak. ++ * ++ * This program is free software; you can redistribute it and/or modify it ++ * under the terms of the GNU General Public License version 2 as published by ++ * the Free Software Foundation. ++ * ++ * This program is distributed in the hope that it will be useful, but WITHOUT ++ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or ++ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for ++ * more details. ++ * ++ * You should have received a copy of the GNU General Public License along with ++ * this program. If not, see <http://www.gnu.org/licenses/>. ++ */ ++ ++#define DSS_SUBSYS_NAME "DISPLAY" ++ ++#include <linux/kernel.h> ++#include <linux/module.h> ++#include <linux/jiffies.h> ++#include <linux/list.h> ++#include <linux/platform_device.h> ++ ++#include <mach/display.h> ++#include "dss.h" ++ ++static LIST_HEAD(display_list); ++ ++static ssize_t display_enabled_show(struct device *dev, ++ struct device_attribute *attr, char *buf) ++{ ++ struct omap_dss_device *dssdev = to_dss_device(dev); ++ bool enabled = dssdev->state != OMAP_DSS_DISPLAY_DISABLED; ++ ++ return snprintf(buf, PAGE_SIZE, "%d\n", enabled); ++} ++ ++static ssize_t display_enabled_store(struct device *dev, ++ struct device_attribute *attr, ++ const char *buf, size_t size) ++{ ++ struct omap_dss_device *dssdev = to_dss_device(dev); ++ bool enabled, r; ++ ++ enabled = simple_strtoul(buf, NULL, 10); ++ ++ if (enabled != (dssdev->state != OMAP_DSS_DISPLAY_DISABLED)) { ++ if (enabled) { ++ r = dssdev->enable(dssdev); ++ if (r) ++ return r; ++ } else { ++ dssdev->disable(dssdev); ++ } ++ } ++ ++ return size; ++} ++ ++static ssize_t display_upd_mode_show(struct device *dev, ++ struct device_attribute *attr, char *buf) ++{ ++ struct omap_dss_device *dssdev = to_dss_device(dev); ++ enum omap_dss_update_mode mode = OMAP_DSS_UPDATE_AUTO; ++ if (dssdev->get_update_mode) ++ mode = dssdev->get_update_mode(dssdev); ++ return snprintf(buf, PAGE_SIZE, "%d\n", mode); ++} ++ ++static ssize_t display_upd_mode_store(struct device *dev, ++ struct device_attribute *attr, ++ const char *buf, size_t size) ++{ ++ struct omap_dss_device *dssdev = to_dss_device(dev); ++ int val, r; ++ enum omap_dss_update_mode mode; ++ ++ val = simple_strtoul(buf, NULL, 10); ++ ++ switch (val) { ++ case OMAP_DSS_UPDATE_DISABLED: ++ case OMAP_DSS_UPDATE_AUTO: ++ case OMAP_DSS_UPDATE_MANUAL: ++ mode = (enum omap_dss_update_mode)val; ++ break; ++ default: ++ return -EINVAL; ++ } ++ ++ r = dssdev->set_update_mode(dssdev, mode); ++ if (r) ++ return r; ++ ++ return size; ++} ++ ++static ssize_t display_tear_show(struct device *dev, ++ struct device_attribute *attr, char *buf) ++{ ++ struct omap_dss_device *dssdev = to_dss_device(dev); ++ return snprintf(buf, PAGE_SIZE, "%d\n", ++ dssdev->get_te ? dssdev->get_te(dssdev) : 0); ++} ++ ++static ssize_t display_tear_store(struct device *dev, ++ struct device_attribute *attr, const char *buf, size_t size) ++{ ++ struct omap_dss_device *dssdev = to_dss_device(dev); ++ unsigned long te; ++ int r; ++ ++ if (!dssdev->enable_te || !dssdev->get_te) ++ return -ENOENT; ++ ++ te = simple_strtoul(buf, NULL, 0); ++ ++ r = dssdev->enable_te(dssdev, te); ++ if (r) ++ return r; ++ ++ return size; ++} ++ ++static ssize_t display_timings_show(struct device *dev, ++ struct device_attribute *attr, char *buf) ++{ ++ struct omap_dss_device *dssdev = to_dss_device(dev); ++ struct omap_video_timings t; ++ ++ if (!dssdev->get_timings) ++ return -ENOENT; ++ ++ dssdev->get_timings(dssdev, &t); ++ ++ return snprintf(buf, PAGE_SIZE, "%u,%u/%u/%u/%u,%u/%u/%u/%u\n", ++ t.pixel_clock, ++ t.x_res, t.hfp, t.hbp, t.hsw, ++ t.y_res, t.vfp, t.vbp, t.vsw); ++} ++ ++static ssize_t display_timings_store(struct device *dev, ++ struct device_attribute *attr, const char *buf, size_t size) ++{ ++ struct omap_dss_device *dssdev = to_dss_device(dev); ++ struct omap_video_timings t; ++ int r, found; ++ ++ if (!dssdev->set_timings || !dssdev->check_timings) ++ return -ENOENT; ++ ++ found = 0; ++#ifdef CONFIG_OMAP2_DSS_VENC ++ if (strncmp("pal", buf, 3) == 0) { ++ t = omap_dss_pal_timings; ++ found = 1; ++ } else if (strncmp("ntsc", buf, 4) == 0) { ++ t = omap_dss_ntsc_timings; ++ found = 1; ++ } ++#endif ++ if (!found && sscanf(buf, "%u,%hu/%hu/%hu/%hu,%hu/%hu/%hu/%hu", ++ &t.pixel_clock, ++ &t.x_res, &t.hfp, &t.hbp, &t.hsw, ++ &t.y_res, &t.vfp, &t.vbp, &t.vsw) != 9) ++ return -EINVAL; ++ ++ r = dssdev->check_timings(dssdev, &t); ++ if (r) ++ return r; ++ ++ dssdev->set_timings(dssdev, &t); ++ ++ return size; ++} ++ ++static ssize_t display_rotate_show(struct device *dev, ++ struct device_attribute *attr, char *buf) ++{ ++ struct omap_dss_device *dssdev = to_dss_device(dev); ++ int rotate; ++ if (!dssdev->get_rotate) ++ return -ENOENT; ++ rotate = dssdev->get_rotate(dssdev); ++ return snprintf(buf, PAGE_SIZE, "%u\n", rotate); ++} ++ ++static ssize_t display_rotate_store(struct device *dev, ++ struct device_attribute *attr, const char *buf, size_t size) ++{ ++ struct omap_dss_device *dssdev = to_dss_device(dev); ++ unsigned long rot; ++ int r; ++ ++ if (!dssdev->set_rotate || !dssdev->get_rotate) ++ return -ENOENT; ++ ++ rot = simple_strtoul(buf, NULL, 0); ++ ++ r = dssdev->set_rotate(dssdev, rot); ++ if (r) ++ return r; ++ ++ return size; ++} ++ ++static ssize_t display_mirror_show(struct device *dev, ++ struct device_attribute *attr, char *buf) ++{ ++ struct omap_dss_device *dssdev = to_dss_device(dev); ++ int mirror; ++ if (!dssdev->get_mirror) ++ return -ENOENT; ++ mirror = dssdev->get_mirror(dssdev); ++ return snprintf(buf, PAGE_SIZE, "%u\n", mirror); ++} ++ ++static ssize_t display_mirror_store(struct device *dev, ++ struct device_attribute *attr, const char *buf, size_t size) ++{ ++ struct omap_dss_device *dssdev = to_dss_device(dev); ++ unsigned long mirror; ++ int r; ++ ++ if (!dssdev->set_mirror || !dssdev->get_mirror) ++ return -ENOENT; ++ ++ mirror = simple_strtoul(buf, NULL, 0); ++ ++ r = dssdev->set_mirror(dssdev, mirror); ++ if (r) ++ return r; ++ ++ return size; ++} ++ ++static ssize_t display_wss_show(struct device *dev, ++ struct device_attribute *attr, char *buf) ++{ ++ struct omap_dss_device *dssdev = to_dss_device(dev); ++ unsigned int wss; ++ ++ if (!dssdev->get_wss) ++ return -ENOENT; ++ ++ wss = dssdev->get_wss(dssdev); ++ ++ return snprintf(buf, PAGE_SIZE, "0x%05x\n", wss); ++} ++ ++static ssize_t display_wss_store(struct device *dev, ++ struct device_attribute *attr, const char *buf, size_t size) ++{ ++ struct omap_dss_device *dssdev = to_dss_device(dev); ++ unsigned long wss; ++ int r; ++ ++ if (!dssdev->get_wss || !dssdev->set_wss) ++ return -ENOENT; ++ ++ if (strict_strtoul(buf, 0, &wss)) ++ return -EINVAL; ++ ++ if (wss > 0xfffff) ++ return -EINVAL; ++ ++ r = dssdev->set_wss(dssdev, wss); ++ if (r) ++ return r; ++ ++ return size; ++} ++ ++static DEVICE_ATTR(enabled, S_IRUGO|S_IWUSR, ++ display_enabled_show, display_enabled_store); ++static DEVICE_ATTR(update_mode, S_IRUGO|S_IWUSR, ++ display_upd_mode_show, display_upd_mode_store); ++static DEVICE_ATTR(tear_elim, S_IRUGO|S_IWUSR, ++ display_tear_show, display_tear_store); ++static DEVICE_ATTR(timings, S_IRUGO|S_IWUSR, ++ display_timings_show, display_timings_store); ++static DEVICE_ATTR(rotate, S_IRUGO|S_IWUSR, ++ display_rotate_show, display_rotate_store); ++static DEVICE_ATTR(mirror, S_IRUGO|S_IWUSR, ++ display_mirror_show, display_mirror_store); ++static DEVICE_ATTR(wss, S_IRUGO|S_IWUSR, ++ display_wss_show, display_wss_store); ++ ++static struct device_attribute *display_sysfs_attrs[] = { ++ &dev_attr_enabled, ++ &dev_attr_update_mode, ++ &dev_attr_tear_elim, ++ &dev_attr_timings, ++ &dev_attr_rotate, ++ &dev_attr_mirror, ++ &dev_attr_wss, ++ NULL ++}; ++ ++static void default_get_resolution(struct omap_dss_device *dssdev, ++ u16 *xres, u16 *yres) ++{ ++ *xres = dssdev->panel.timings.x_res; ++ *yres = dssdev->panel.timings.y_res; ++} ++ ++void default_get_overlay_fifo_thresholds(enum omap_plane plane, ++ u32 fifo_size, enum omap_burst_size *burst_size, ++ u32 *fifo_low, u32 *fifo_high) ++{ ++ unsigned burst_size_bytes; ++ ++ *burst_size = OMAP_DSS_BURST_16x32; ++ burst_size_bytes = 16 * 32 / 8; ++ ++ *fifo_high = fifo_size - 1; ++ *fifo_low = fifo_size - burst_size_bytes; ++} ++ ++static int default_wait_vsync(struct omap_dss_device *dssdev) ++{ ++ unsigned long timeout = msecs_to_jiffies(500); ++ u32 irq; ++ ++ if (dssdev->type == OMAP_DISPLAY_TYPE_VENC) ++ irq = DISPC_IRQ_EVSYNC_ODD; ++ else ++ irq = DISPC_IRQ_VSYNC; ++ ++ return omap_dispc_wait_for_irq_interruptible_timeout(irq, timeout); ++} ++ ++static int default_get_recommended_bpp(struct omap_dss_device *dssdev) ++{ ++ if (dssdev->panel.recommended_bpp) ++ return dssdev->panel.recommended_bpp; ++ ++ switch (dssdev->type) { ++ case OMAP_DISPLAY_TYPE_DPI: ++ if (dssdev->phy.dpi.data_lines == 24) ++ return 24; ++ else ++ return 16; ++ ++ case OMAP_DISPLAY_TYPE_DBI: ++ case OMAP_DISPLAY_TYPE_DSI: ++ if (dssdev->ctrl.pixel_size == 24) ++ return 24; ++ else ++ return 16; ++ case OMAP_DISPLAY_TYPE_VENC: ++ case OMAP_DISPLAY_TYPE_SDI: ++ return 24; ++ return 24; ++ default: ++ BUG(); ++ } ++} ++ ++/* Checks if replication logic should be used. Only use for active matrix, ++ * when overlay is in RGB12U or RGB16 mode, and LCD interface is ++ * 18bpp or 24bpp */ ++bool dss_use_replication(struct omap_dss_device *dssdev, ++ enum omap_color_mode mode) ++{ ++ int bpp; ++ ++ if (mode != OMAP_DSS_COLOR_RGB12U && mode != OMAP_DSS_COLOR_RGB16) ++ return false; ++ ++ if (dssdev->type == OMAP_DISPLAY_TYPE_DPI && ++ (dssdev->panel.config & OMAP_DSS_LCD_TFT) == 0) ++ return false; ++ ++ switch (dssdev->type) { ++ case OMAP_DISPLAY_TYPE_DPI: ++ bpp = dssdev->phy.dpi.data_lines; ++ break; ++ case OMAP_DISPLAY_TYPE_VENC: ++ case OMAP_DISPLAY_TYPE_SDI: ++ bpp = 24; ++ break; ++ case OMAP_DISPLAY_TYPE_DBI: ++ case OMAP_DISPLAY_TYPE_DSI: ++ bpp = dssdev->ctrl.pixel_size; ++ break; ++ default: ++ BUG(); ++ } ++ ++ return bpp > 16; ++} ++ ++void dss_init_device(struct platform_device *pdev, ++ struct omap_dss_device *dssdev) ++{ ++ struct device_attribute *attr; ++ int i; ++ int r; ++ ++ switch (dssdev->type) { ++ case OMAP_DISPLAY_TYPE_DPI: ++#ifdef CONFIG_OMAP2_DSS_RFBI ++ case OMAP_DISPLAY_TYPE_DBI: ++#endif ++#ifdef CONFIG_OMAP2_DSS_SDI ++ case OMAP_DISPLAY_TYPE_SDI: ++#endif ++#ifdef CONFIG_OMAP2_DSS_DSI ++ case OMAP_DISPLAY_TYPE_DSI: ++#endif ++#ifdef CONFIG_OMAP2_DSS_VENC ++ case OMAP_DISPLAY_TYPE_VENC: ++#endif ++ break; ++ default: ++ DSSERR("Support for display '%s' not compiled in.\n", ++ dssdev->name); ++ return; ++ } ++ ++ dssdev->get_resolution = default_get_resolution; ++ dssdev->get_recommended_bpp = default_get_recommended_bpp; ++ dssdev->wait_vsync = default_wait_vsync; ++ ++ switch (dssdev->type) { ++ case OMAP_DISPLAY_TYPE_DPI: ++ r = dpi_init_display(dssdev); ++ break; ++#ifdef CONFIG_OMAP2_DSS_RFBI ++ case OMAP_DISPLAY_TYPE_DBI: ++ r = rfbi_init_display(dssdev); ++ break; ++#endif ++#ifdef CONFIG_OMAP2_DSS_VENC ++ case OMAP_DISPLAY_TYPE_VENC: ++ r = venc_init_display(dssdev); ++ break; ++#endif ++#ifdef CONFIG_OMAP2_DSS_SDI ++ case OMAP_DISPLAY_TYPE_SDI: ++ r = sdi_init_display(dssdev); ++ break; ++#endif ++#ifdef CONFIG_OMAP2_DSS_DSI ++ case OMAP_DISPLAY_TYPE_DSI: ++ r = dsi_init_display(dssdev); ++ break; ++#endif ++ default: ++ BUG(); ++ } ++ ++ if (r) { ++ DSSERR("failed to init display %s\n", dssdev->name); ++ return; ++ } ++ ++ /* create device sysfs files */ ++ i = 0; ++ while ((attr = display_sysfs_attrs[i++]) != NULL) { ++ r = device_create_file(&dssdev->dev, attr); ++ if (r) ++ DSSERR("failed to create sysfs file\n"); ++ } ++ ++ /* create display? sysfs links */ ++ r = sysfs_create_link(&pdev->dev.kobj, &dssdev->dev.kobj, ++ dev_name(&dssdev->dev)); ++ if (r) ++ DSSERR("failed to create sysfs display link\n"); ++} ++ ++void dss_uninit_device(struct platform_device *pdev, ++ struct omap_dss_device *dssdev) ++{ ++ struct device_attribute *attr; ++ int i = 0; ++ ++ sysfs_remove_link(&pdev->dev.kobj, dev_name(&dssdev->dev)); ++ ++ while ((attr = display_sysfs_attrs[i++]) != NULL) ++ device_remove_file(&dssdev->dev, attr); ++ ++ if (dssdev->manager) ++ dssdev->manager->unset_device(dssdev->manager); ++} ++ ++static int dss_suspend_device(struct device *dev, void *data) ++{ ++ int r; ++ struct omap_dss_device *dssdev = to_dss_device(dev); ++ ++ if (dssdev->state != OMAP_DSS_DISPLAY_ACTIVE) { ++ dssdev->activate_after_resume = false; ++ return 0; ++ } ++ ++ if (!dssdev->suspend) { ++ DSSERR("display '%s' doesn't implement suspend\n", ++ dssdev->name); ++ return -ENOSYS; ++ } ++ ++ r = dssdev->suspend(dssdev); ++ if (r) ++ return r; ++ ++ dssdev->activate_after_resume = true; ++ ++ return 0; ++} ++ ++int dss_suspend_all_devices(void) ++{ ++ int r; ++ struct bus_type *bus = dss_get_bus(); ++ ++ r = bus_for_each_dev(bus, NULL, NULL, dss_suspend_device); ++ if (r) { ++ /* resume all displays that were suspended */ ++ dss_resume_all_devices(); ++ return r; ++ } ++ ++ return 0; ++} ++ ++static int dss_resume_device(struct device *dev, void *data) ++{ ++ int r; ++ struct omap_dss_device *dssdev = to_dss_device(dev); ++ ++ if (dssdev->activate_after_resume && dssdev->resume) { ++ r = dssdev->resume(dssdev); ++ if (r) ++ return r; ++ } ++ ++ dssdev->activate_after_resume = false; ++ ++ return 0; ++} ++ ++int dss_resume_all_devices(void) ++{ ++ struct bus_type *bus = dss_get_bus(); ++ ++ return bus_for_each_dev(bus, NULL, NULL, dss_resume_device); ++} ++ ++ ++void omap_dss_get_device(struct omap_dss_device *dssdev) ++{ ++ get_device(&dssdev->dev); ++} ++EXPORT_SYMBOL(omap_dss_get_device); ++ ++void omap_dss_put_device(struct omap_dss_device *dssdev) ++{ ++ put_device(&dssdev->dev); ++} ++EXPORT_SYMBOL(omap_dss_put_device); ++ ++/* ref count of the found device is incremented. ref count ++ * of from-device is decremented. */ ++struct omap_dss_device *omap_dss_get_next_device(struct omap_dss_device *from) ++{ ++ struct device *dev; ++ struct device *dev_start = NULL; ++ struct omap_dss_device *dssdev = NULL; ++ ++ int match(struct device *dev, void *data) ++ { ++ /* skip panels connected to controllers */ ++ if (to_dss_device(dev)->panel.ctrl) ++ return 0; ++ ++ return 1; ++ } ++ ++ if (from) ++ dev_start = &from->dev; ++ dev = bus_find_device(dss_get_bus(), dev_start, NULL, match); ++ if (dev) ++ dssdev = to_dss_device(dev); ++ if (from) ++ put_device(&from->dev); ++ ++ return dssdev; ++} ++EXPORT_SYMBOL(omap_dss_get_next_device); ++ ++struct omap_dss_device *omap_dss_find_device(void *data, ++ int (*match)(struct omap_dss_device *dssdev, void *data)) ++{ ++ struct omap_dss_device *dssdev = NULL; ++ ++ while ((dssdev = omap_dss_get_next_device(dssdev)) != NULL) { ++ if (match(dssdev, data)) ++ return dssdev; ++ } ++ ++ return NULL; ++} ++EXPORT_SYMBOL(omap_dss_find_device); ++ ++int omap_dss_start_device(struct omap_dss_device *dssdev) ++{ ++ int r; ++ ++ if (!dssdev->driver) { ++ DSSDBG("no driver\n"); ++ r = -ENODEV; ++ goto err0; ++ } ++ ++ if (dssdev->ctrl.panel && !dssdev->ctrl.panel->driver) { ++ DSSDBG("no panel driver\n"); ++ r = -ENODEV; ++ goto err0; ++ } ++ ++ if (!try_module_get(dssdev->dev.driver->owner)) { ++ r = -ENODEV; ++ goto err0; ++ } ++ ++ if (dssdev->ctrl.panel) { ++ if (!try_module_get(dssdev->ctrl.panel->dev.driver->owner)) { ++ r = -ENODEV; ++ goto err1; ++ } ++ } ++ ++ return 0; ++err1: ++ module_put(dssdev->dev.driver->owner); ++err0: ++ return r; ++} ++EXPORT_SYMBOL(omap_dss_start_device); ++ ++void omap_dss_stop_device(struct omap_dss_device *dssdev) ++{ ++ if (dssdev->ctrl.panel) ++ module_put(dssdev->ctrl.panel->dev.driver->owner); ++ ++ module_put(dssdev->dev.driver->owner); ++} ++EXPORT_SYMBOL(omap_dss_stop_device); ++ +diff --git a/drivers/video/omap2/dss/dpi.c b/drivers/video/omap2/dss/dpi.c +new file mode 100644 +index 0000000..b6543c8 +--- /dev/null ++++ b/drivers/video/omap2/dss/dpi.c +@@ -0,0 +1,388 @@ ++/* ++ * linux/drivers/video/omap2/dss/dpi.c ++ * ++ * Copyright (C) 2009 Nokia Corporation ++ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com> ++ * ++ * Some code and ideas taken from drivers/video/omap/ driver ++ * by Imre Deak. ++ * ++ * This program is free software; you can redistribute it and/or modify it ++ * under the terms of the GNU General Public License version 2 as published by ++ * the Free Software Foundation. ++ * ++ * This program is distributed in the hope that it will be useful, but WITHOUT ++ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or ++ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for ++ * more details. ++ * ++ * You should have received a copy of the GNU General Public License along with ++ * this program. If not, see <http://www.gnu.org/licenses/>. ++ */ ++ ++#define DSS_SUBSYS_NAME "DPI" ++ ++#include <linux/kernel.h> ++#include <linux/clk.h> ++#include <linux/delay.h> ++#include <linux/errno.h> ++ ++#include <mach/board.h> ++#include <mach/display.h> ++#include <mach/cpu.h> ++ ++#include "dss.h" ++ ++static struct { ++ int update_enabled; ++} dpi; ++ ++#ifdef CONFIG_OMAP2_DSS_USE_DSI_PLL ++static int dpi_set_dsi_clk(bool is_tft, unsigned long pck_req, ++ unsigned long *fck, int *lck_div, int *pck_div) ++{ ++ struct dsi_clock_info cinfo; ++ int r; ++ ++ r = dsi_pll_calc_pck(is_tft, pck_req, &cinfo); ++ if (r) ++ return r; ++ ++ r = dsi_pll_program(&cinfo); ++ if (r) ++ return r; ++ ++ dss_select_clk_source(0, 1); ++ ++ dispc_set_lcd_divisor(cinfo.lck_div, cinfo.pck_div); ++ ++ *fck = cinfo.dsi1_pll_fclk; ++ *lck_div = cinfo.lck_div; ++ *pck_div = cinfo.pck_div; ++ ++ return 0; ++} ++#else ++static int dpi_set_dispc_clk(bool is_tft, unsigned long pck_req, ++ unsigned long *fck, int *lck_div, int *pck_div) ++{ ++ struct dispc_clock_info cinfo; ++ int r; ++ ++ r = dispc_calc_clock_div(is_tft, pck_req, &cinfo); ++ if (r) ++ return r; ++ ++ r = dispc_set_clock_div(&cinfo); ++ if (r) ++ return r; ++ ++ *fck = cinfo.fck; ++ *lck_div = cinfo.lck_div; ++ *pck_div = cinfo.pck_div; ++ ++ return 0; ++} ++#endif ++ ++static int dpi_set_mode(struct omap_dss_device *dssdev) ++{ ++ struct omap_video_timings *t = &dssdev->panel.timings; ++ int lck_div, pck_div; ++ unsigned long fck; ++ unsigned long pck; ++ bool is_tft; ++ int r = 0; ++ ++ dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1); ++ ++ dispc_set_pol_freq(dssdev->panel.config, dssdev->panel.acbi, ++ dssdev->panel.acb); ++ ++ is_tft = (dssdev->panel.config & OMAP_DSS_LCD_TFT) != 0; ++ ++#ifdef CONFIG_OMAP2_DSS_USE_DSI_PLL ++ r = dpi_set_dsi_clk(is_tft, t->pixel_clock * 1000, ++ &fck, &lck_div, &pck_div); ++#else ++ r = dpi_set_dispc_clk(is_tft, t->pixel_clock * 1000, ++ &fck, &lck_div, &pck_div); ++#endif ++ if (r) ++ goto err0; ++ ++ pck = fck / lck_div / pck_div / 1000; ++ ++ if (pck != t->pixel_clock) { ++ DSSWARN("Could not find exact pixel clock. " ++ "Requested %d kHz, got %lu kHz\n", ++ t->pixel_clock, pck); ++ ++ t->pixel_clock = pck; ++ } ++ ++ dispc_set_lcd_timings(t); ++ ++err0: ++ dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1); ++ return r; ++} ++ ++static int dpi_basic_init(struct omap_dss_device *dssdev) ++{ ++ bool is_tft; ++ ++ is_tft = (dssdev->panel.config & OMAP_DSS_LCD_TFT) != 0; ++ ++ dispc_set_parallel_interface_mode(OMAP_DSS_PARALLELMODE_BYPASS); ++ dispc_set_lcd_display_type(is_tft ? OMAP_DSS_LCD_DISPLAY_TFT : ++ OMAP_DSS_LCD_DISPLAY_STN); ++ dispc_set_tft_data_lines(dssdev->phy.dpi.data_lines); ++ ++ return 0; ++} ++ ++static int dpi_display_enable(struct omap_dss_device *dssdev) ++{ ++ int r; ++ ++ r = omap_dss_start_device(dssdev); ++ if (r) { ++ DSSERR("failed to start device\n"); ++ goto err0; ++ } ++ ++ if (dssdev->state != OMAP_DSS_DISPLAY_DISABLED) { ++ DSSERR("display already enabled\n"); ++ r = -EINVAL; ++ goto err1; ++ } ++ ++ dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1); ++ ++ r = dpi_basic_init(dssdev); ++ if (r) ++ goto err2; ++ ++#ifdef CONFIG_OMAP2_DSS_USE_DSI_PLL ++ dss_clk_enable(DSS_CLK_FCK2); ++ r = dsi_pll_init(0, 1); ++ if (r) ++ goto err3; ++#endif ++ r = dpi_set_mode(dssdev); ++ if (r) ++ goto err4; ++ ++ mdelay(2); ++ ++ dispc_enable_lcd_out(1); ++ ++ r = dssdev->driver->enable(dssdev); ++ if (r) ++ goto err5; ++ ++ dssdev->state = OMAP_DSS_DISPLAY_ACTIVE; ++ ++ return 0; ++ ++err5: ++ dispc_enable_lcd_out(0); ++err4: ++#ifdef CONFIG_OMAP2_DSS_USE_DSI_PLL ++ dsi_pll_uninit(); ++err3: ++ dss_clk_disable(DSS_CLK_FCK2); ++#endif ++err2: ++ dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1); ++err1: ++ omap_dss_stop_device(dssdev); ++err0: ++ return r; ++} ++ ++static int dpi_display_resume(struct omap_dss_device *dssdev); ++ ++static void dpi_display_disable(struct omap_dss_device *dssdev) ++{ ++ if (dssdev->state == OMAP_DSS_DISPLAY_DISABLED) ++ return; ++ ++ if (dssdev->state == OMAP_DSS_DISPLAY_SUSPENDED) ++ dpi_display_resume(dssdev); ++ ++ dssdev->driver->disable(dssdev); ++ ++ dispc_enable_lcd_out(0); ++ ++#ifdef CONFIG_OMAP2_DSS_USE_DSI_PLL ++ dss_select_clk_source(0, 0); ++ dsi_pll_uninit(); ++ dss_clk_disable(DSS_CLK_FCK2); ++#endif ++ ++ dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1); ++ ++ dssdev->state = OMAP_DSS_DISPLAY_DISABLED; ++ ++ omap_dss_stop_device(dssdev); ++} ++ ++static int dpi_display_suspend(struct omap_dss_device *dssdev) ++{ ++ if (dssdev->state != OMAP_DSS_DISPLAY_ACTIVE) ++ return -EINVAL; ++ ++ DSSDBG("dpi_display_suspend\n"); ++ ++ if (dssdev->driver->suspend) ++ dssdev->driver->suspend(dssdev); ++ ++ dispc_enable_lcd_out(0); ++ ++ dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1); ++ ++ dssdev->state = OMAP_DSS_DISPLAY_SUSPENDED; ++ ++ return 0; ++} ++ ++static int dpi_display_resume(struct omap_dss_device *dssdev) ++{ ++ if (dssdev->state != OMAP_DSS_DISPLAY_SUSPENDED) ++ return -EINVAL; ++ ++ DSSDBG("dpi_display_resume\n"); ++ ++ dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1); ++ ++ dispc_enable_lcd_out(1); ++ ++ if (dssdev->driver->resume) ++ dssdev->driver->resume(dssdev); ++ ++ dssdev->state = OMAP_DSS_DISPLAY_ACTIVE; ++ ++ return 0; ++} ++ ++static void dpi_set_timings(struct omap_dss_device *dssdev, ++ struct omap_video_timings *timings) ++{ ++ DSSDBG("dpi_set_timings\n"); ++ dssdev->panel.timings = *timings; ++ if (dssdev->state == OMAP_DSS_DISPLAY_ACTIVE) { ++ dpi_set_mode(dssdev); ++ dispc_go(OMAP_DSS_CHANNEL_LCD); ++ } ++} ++ ++static int dpi_check_timings(struct omap_dss_device *dssdev, ++ struct omap_video_timings *timings) ++{ ++ bool is_tft; ++ int r; ++ int lck_div, pck_div; ++ unsigned long fck; ++ unsigned long pck; ++ ++ if (!dispc_lcd_timings_ok(timings)) ++ return -EINVAL; ++ ++ if (timings->pixel_clock == 0) ++ return -EINVAL; ++ ++ is_tft = (dssdev->panel.config & OMAP_DSS_LCD_TFT) != 0; ++ ++#ifdef CONFIG_OMAP2_DSS_USE_DSI_PLL ++ { ++ struct dsi_clock_info cinfo; ++ r = dsi_pll_calc_pck(is_tft, timings->pixel_clock * 1000, ++ &cinfo); ++ ++ if (r) ++ return r; ++ ++ fck = cinfo.dsi1_pll_fclk; ++ lck_div = cinfo.lck_div; ++ pck_div = cinfo.pck_div; ++ } ++#else ++ { ++ struct dispc_clock_info cinfo; ++ r = dispc_calc_clock_div(is_tft, timings->pixel_clock * 1000, ++ &cinfo); ++ ++ if (r) ++ return r; ++ ++ fck = cinfo.fck; ++ lck_div = cinfo.lck_div; ++ pck_div = cinfo.pck_div; ++ } ++#endif ++ ++ pck = fck / lck_div / pck_div / 1000; ++ ++ timings->pixel_clock = pck; ++ ++ return 0; ++} ++ ++static void dpi_get_timings(struct omap_dss_device *dssdev, ++ struct omap_video_timings *timings) ++{ ++ *timings = dssdev->panel.timings; ++} ++ ++static int dpi_display_set_update_mode(struct omap_dss_device *dssdev, ++ enum omap_dss_update_mode mode) ++{ ++ if (mode == OMAP_DSS_UPDATE_MANUAL) ++ return -EINVAL; ++ ++ if (mode == OMAP_DSS_UPDATE_DISABLED) { ++ dispc_enable_lcd_out(0); ++ dpi.update_enabled = 0; ++ } else { ++ dispc_enable_lcd_out(1); ++ dpi.update_enabled = 1; ++ } ++ ++ return 0; ++} ++ ++static enum omap_dss_update_mode dpi_display_get_update_mode( ++ struct omap_dss_device *dssdev) ++{ ++ return dpi.update_enabled ? OMAP_DSS_UPDATE_AUTO : ++ OMAP_DSS_UPDATE_DISABLED; ++} ++ ++int dpi_init_display(struct omap_dss_device *dssdev) ++{ ++ DSSDBG("init_display\n"); ++ ++ dssdev->enable = dpi_display_enable; ++ dssdev->disable = dpi_display_disable; ++ dssdev->suspend = dpi_display_suspend; ++ dssdev->resume = dpi_display_resume; ++ dssdev->set_timings = dpi_set_timings; ++ dssdev->check_timings = dpi_check_timings; ++ dssdev->get_timings = dpi_get_timings; ++ dssdev->set_update_mode = dpi_display_set_update_mode; ++ dssdev->get_update_mode = dpi_display_get_update_mode; ++ ++ return 0; ++} ++ ++int dpi_init(void) ++{ ++ return 0; ++} ++ ++void dpi_exit(void) ++{ ++} ++ +diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c +new file mode 100644 +index 0000000..d43b9ce +--- /dev/null ++++ b/drivers/video/omap2/dss/dsi.c +@@ -0,0 +1,3509 @@ ++/* ++ * linux/drivers/video/omap2/dss/dsi.c ++ * ++ * Copyright (C) 2009 Nokia Corporation ++ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com> ++ * ++ * This program is free software; you can redistribute it and/or modify it ++ * under the terms of the GNU General Public License version 2 as published by ++ * the Free Software Foundation. ++ * ++ * This program is distributed in the hope that it will be useful, but WITHOUT ++ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or ++ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for ++ * more details. ++ * ++ * You should have received a copy of the GNU General Public License along with ++ * this program. If not, see <http://www.gnu.org/licenses/>. ++ */ ++ ++#define DSS_SUBSYS_NAME "DSI" ++ ++#include <linux/kernel.h> ++#include <linux/io.h> ++#include <linux/clk.h> ++#include <linux/device.h> ++#include <linux/err.h> ++#include <linux/interrupt.h> ++#include <linux/delay.h> ++#include <linux/mutex.h> ++#include <linux/seq_file.h> ++#include <linux/platform_device.h> ++#include <linux/regulator/consumer.h> ++#include <linux/kthread.h> ++#include <linux/wait.h> ++ ++#include <mach/board.h> ++#include <mach/display.h> ++#include <mach/clock.h> ++ ++#include "dss.h" ++ ++/*#define VERBOSE_IRQ*/ ++ ++#define DSI_BASE 0x4804FC00 ++ ++struct dsi_reg { u16 idx; }; ++ ++#define DSI_REG(idx) ((const struct dsi_reg) { idx }) ++ ++#define DSI_SZ_REGS SZ_1K ++/* DSI Protocol Engine */ ++ ++#define DSI_REVISION DSI_REG(0x0000) ++#define DSI_SYSCONFIG DSI_REG(0x0010) ++#define DSI_SYSSTATUS DSI_REG(0x0014) ++#define DSI_IRQSTATUS DSI_REG(0x0018) ++#define DSI_IRQENABLE DSI_REG(0x001C) ++#define DSI_CTRL DSI_REG(0x0040) ++#define DSI_COMPLEXIO_CFG1 DSI_REG(0x0048) ++#define DSI_COMPLEXIO_IRQ_STATUS DSI_REG(0x004C) ++#define DSI_COMPLEXIO_IRQ_ENABLE DSI_REG(0x0050) ++#define DSI_CLK_CTRL DSI_REG(0x0054) ++#define DSI_TIMING1 DSI_REG(0x0058) ++#define DSI_TIMING2 DSI_REG(0x005C) ++#define DSI_VM_TIMING1 DSI_REG(0x0060) ++#define DSI_VM_TIMING2 DSI_REG(0x0064) ++#define DSI_VM_TIMING3 DSI_REG(0x0068) ++#define DSI_CLK_TIMING DSI_REG(0x006C) ++#define DSI_TX_FIFO_VC_SIZE DSI_REG(0x0070) ++#define DSI_RX_FIFO_VC_SIZE DSI_REG(0x0074) ++#define DSI_COMPLEXIO_CFG2 DSI_REG(0x0078) ++#define DSI_RX_FIFO_VC_FULLNESS DSI_REG(0x007C) ++#define DSI_VM_TIMING4 DSI_REG(0x0080) ++#define DSI_TX_FIFO_VC_EMPTINESS DSI_REG(0x0084) ++#define DSI_VM_TIMING5 DSI_REG(0x0088) ++#define DSI_VM_TIMING6 DSI_REG(0x008C) ++#define DSI_VM_TIMING7 DSI_REG(0x0090) ++#define DSI_STOPCLK_TIMING DSI_REG(0x0094) ++#define DSI_VC_CTRL(n) DSI_REG(0x0100 + (n * 0x20)) ++#define DSI_VC_TE(n) DSI_REG(0x0104 + (n * 0x20)) ++#define DSI_VC_LONG_PACKET_HEADER(n) DSI_REG(0x0108 + (n * 0x20)) ++#define DSI_VC_LONG_PACKET_PAYLOAD(n) DSI_REG(0x010C + (n * 0x20)) ++#define DSI_VC_SHORT_PACKET_HEADER(n) DSI_REG(0x0110 + (n * 0x20)) ++#define DSI_VC_IRQSTATUS(n) DSI_REG(0x0118 + (n * 0x20)) ++#define DSI_VC_IRQENABLE(n) DSI_REG(0x011C + (n * 0x20)) ++ ++/* DSIPHY_SCP */ ++ ++#define DSI_DSIPHY_CFG0 DSI_REG(0x200 + 0x0000) ++#define DSI_DSIPHY_CFG1 DSI_REG(0x200 + 0x0004) ++#define DSI_DSIPHY_CFG2 DSI_REG(0x200 + 0x0008) ++#define DSI_DSIPHY_CFG5 DSI_REG(0x200 + 0x0014) ++ ++/* DSI_PLL_CTRL_SCP */ ++ ++#define DSI_PLL_CONTROL DSI_REG(0x300 + 0x0000) ++#define DSI_PLL_STATUS DSI_REG(0x300 + 0x0004) ++#define DSI_PLL_GO DSI_REG(0x300 + 0x0008) ++#define DSI_PLL_CONFIGURATION1 DSI_REG(0x300 + 0x000C) ++#define DSI_PLL_CONFIGURATION2 DSI_REG(0x300 + 0x0010) ++ ++#define REG_GET(idx, start, end) \ ++ FLD_GET(dsi_read_reg(idx), start, end) ++ ++#define REG_FLD_MOD(idx, val, start, end) \ ++ dsi_write_reg(idx, FLD_MOD(dsi_read_reg(idx), val, start, end)) ++ ++/* Global interrupts */ ++#define DSI_IRQ_VC0 (1 << 0) ++#define DSI_IRQ_VC1 (1 << 1) ++#define DSI_IRQ_VC2 (1 << 2) ++#define DSI_IRQ_VC3 (1 << 3) ++#define DSI_IRQ_WAKEUP (1 << 4) ++#define DSI_IRQ_RESYNC (1 << 5) ++#define DSI_IRQ_PLL_LOCK (1 << 7) ++#define DSI_IRQ_PLL_UNLOCK (1 << 8) ++#define DSI_IRQ_PLL_RECALL (1 << 9) ++#define DSI_IRQ_COMPLEXIO_ERR (1 << 10) ++#define DSI_IRQ_HS_TX_TIMEOUT (1 << 14) ++#define DSI_IRQ_LP_RX_TIMEOUT (1 << 15) ++#define DSI_IRQ_TE_TRIGGER (1 << 16) ++#define DSI_IRQ_ACK_TRIGGER (1 << 17) ++#define DSI_IRQ_SYNC_LOST (1 << 18) ++#define DSI_IRQ_LDO_POWER_GOOD (1 << 19) ++#define DSI_IRQ_TA_TIMEOUT (1 << 20) ++#define DSI_IRQ_ERROR_MASK \ ++ (DSI_IRQ_HS_TX_TIMEOUT | DSI_IRQ_LP_RX_TIMEOUT | DSI_IRQ_SYNC_LOST | \ ++ DSI_IRQ_TA_TIMEOUT) ++#define DSI_IRQ_CHANNEL_MASK 0xf ++ ++/* Virtual channel interrupts */ ++#define DSI_VC_IRQ_CS (1 << 0) ++#define DSI_VC_IRQ_ECC_CORR (1 << 1) ++#define DSI_VC_IRQ_PACKET_SENT (1 << 2) ++#define DSI_VC_IRQ_FIFO_TX_OVF (1 << 3) ++#define DSI_VC_IRQ_FIFO_RX_OVF (1 << 4) ++#define DSI_VC_IRQ_BTA (1 << 5) ++#define DSI_VC_IRQ_ECC_NO_CORR (1 << 6) ++#define DSI_VC_IRQ_FIFO_TX_UDF (1 << 7) ++#define DSI_VC_IRQ_PP_BUSY_CHANGE (1 << 8) ++#define DSI_VC_IRQ_ERROR_MASK \ ++ (DSI_VC_IRQ_CS | DSI_VC_IRQ_ECC_CORR | DSI_VC_IRQ_FIFO_TX_OVF | \ ++ DSI_VC_IRQ_FIFO_RX_OVF | DSI_VC_IRQ_ECC_NO_CORR | \ ++ DSI_VC_IRQ_FIFO_TX_UDF) ++ ++/* ComplexIO interrupts */ ++#define DSI_CIO_IRQ_ERRSYNCESC1 (1 << 0) ++#define DSI_CIO_IRQ_ERRSYNCESC2 (1 << 1) ++#define DSI_CIO_IRQ_ERRSYNCESC3 (1 << 2) ++#define DSI_CIO_IRQ_ERRESC1 (1 << 5) ++#define DSI_CIO_IRQ_ERRESC2 (1 << 6) ++#define DSI_CIO_IRQ_ERRESC3 (1 << 7) ++#define DSI_CIO_IRQ_ERRCONTROL1 (1 << 10) ++#define DSI_CIO_IRQ_ERRCONTROL2 (1 << 11) ++#define DSI_CIO_IRQ_ERRCONTROL3 (1 << 12) ++#define DSI_CIO_IRQ_STATEULPS1 (1 << 15) ++#define DSI_CIO_IRQ_STATEULPS2 (1 << 16) ++#define DSI_CIO_IRQ_STATEULPS3 (1 << 17) ++#define DSI_CIO_IRQ_ERRCONTENTIONLP0_1 (1 << 20) ++#define DSI_CIO_IRQ_ERRCONTENTIONLP1_1 (1 << 21) ++#define DSI_CIO_IRQ_ERRCONTENTIONLP0_2 (1 << 22) ++#define DSI_CIO_IRQ_ERRCONTENTIONLP1_2 (1 << 23) ++#define DSI_CIO_IRQ_ERRCONTENTIONLP0_3 (1 << 24) ++#define DSI_CIO_IRQ_ERRCONTENTIONLP1_3 (1 << 25) ++#define DSI_CIO_IRQ_ULPSACTIVENOT_ALL0 (1 << 30) ++#define DSI_CIO_IRQ_ULPSACTIVENOT_ALL1 (1 << 31) ++ ++#define DSI_DT_DCS_SHORT_WRITE_0 0x05 ++#define DSI_DT_DCS_SHORT_WRITE_1 0x15 ++#define DSI_DT_DCS_READ 0x06 ++#define DSI_DT_SET_MAX_RET_PKG_SIZE 0x37 ++#define DSI_DT_NULL_PACKET 0x09 ++#define DSI_DT_DCS_LONG_WRITE 0x39 ++ ++#define DSI_DT_RX_ACK_WITH_ERR 0x02 ++#define DSI_DT_RX_DCS_LONG_READ 0x1c ++#define DSI_DT_RX_SHORT_READ_1 0x21 ++#define DSI_DT_RX_SHORT_READ_2 0x22 ++ ++#define FINT_MAX 2100000 ++#define FINT_MIN 750000 ++#define REGN_MAX (1 << 7) ++#define REGM_MAX ((1 << 11) - 1) ++#define REGM3_MAX (1 << 4) ++#define REGM4_MAX (1 << 4) ++ ++enum fifo_size { ++ DSI_FIFO_SIZE_0 = 0, ++ DSI_FIFO_SIZE_32 = 1, ++ DSI_FIFO_SIZE_64 = 2, ++ DSI_FIFO_SIZE_96 = 3, ++ DSI_FIFO_SIZE_128 = 4, ++}; ++ ++enum dsi_vc_mode { ++ DSI_VC_MODE_L4 = 0, ++ DSI_VC_MODE_VP, ++}; ++ ++struct dsi_update_region { ++ bool dirty; ++ u16 x, y, w, h; ++ struct omap_dss_device *device; ++}; ++ ++static struct ++{ ++ void __iomem *base; ++ ++ unsigned long dsi1_pll_fclk; /* Hz */ ++ unsigned long dsi2_pll_fclk; /* Hz */ ++ unsigned long dsiphy; /* Hz */ ++ unsigned long ddr_clk; /* Hz */ ++ ++ struct regulator *vdds_dsi_reg; ++ ++ struct { ++ enum dsi_vc_mode mode; ++ struct omap_dss_device *dssdev; ++ enum fifo_size fifo_size; ++ int dest_per; /* destination peripheral 0-3 */ ++ } vc[4]; ++ ++ struct mutex lock; ++ struct mutex bus_lock; ++ ++ unsigned pll_locked; ++ ++ struct completion bta_completion; ++ ++ struct task_struct *thread; ++ wait_queue_head_t waitqueue; ++ ++ spinlock_t update_lock; ++ bool framedone_received; ++ struct dsi_update_region update_region; ++ struct dsi_update_region active_update_region; ++ struct completion update_completion; ++ ++ enum omap_dss_update_mode user_update_mode; ++ enum omap_dss_update_mode update_mode; ++ bool te_enabled; ++ bool use_ext_te; ++ ++ unsigned long cache_req_pck; ++ unsigned long cache_clk_freq; ++ struct dsi_clock_info cache_cinfo; ++ ++ u32 errors; ++ spinlock_t errors_lock; ++#ifdef DEBUG ++ ktime_t perf_setup_time; ++ ktime_t perf_start_time; ++ ktime_t perf_start_time_auto; ++ int perf_measure_frames; ++#endif ++ int debug_read; ++ int debug_write; ++} dsi; ++ ++#ifdef DEBUG ++static unsigned int dsi_perf; ++module_param_named(dsi_perf, dsi_perf, bool, 0644); ++#endif ++ ++static inline void dsi_write_reg(const struct dsi_reg idx, u32 val) ++{ ++ __raw_writel(val, dsi.base + idx.idx); ++} ++ ++static inline u32 dsi_read_reg(const struct dsi_reg idx) ++{ ++ return __raw_readl(dsi.base + idx.idx); ++} ++ ++ ++void dsi_save_context(void) ++{ ++} ++ ++void dsi_restore_context(void) ++{ ++} ++ ++void dsi_bus_lock(void) ++{ ++ mutex_lock(&dsi.bus_lock); ++} ++EXPORT_SYMBOL(dsi_bus_lock); ++ ++void dsi_bus_unlock(void) ++{ ++ mutex_unlock(&dsi.bus_lock); ++} ++EXPORT_SYMBOL(dsi_bus_unlock); ++ ++static inline int wait_for_bit_change(const struct dsi_reg idx, int bitnum, ++ int value) ++{ ++ int t = 100000; ++ ++ while (REG_GET(idx, bitnum, bitnum) != value) { ++ if (--t == 0) ++ return !value; ++ } ++ ++ return value; ++} ++ ++#ifdef DEBUG ++static void dsi_perf_mark_setup(void) ++{ ++ dsi.perf_setup_time = ktime_get(); ++} ++ ++static void dsi_perf_mark_start(void) ++{ ++ dsi.perf_start_time = ktime_get(); ++} ++ ++static void dsi_perf_mark_start_auto(void) ++{ ++ dsi.perf_measure_frames = 0; ++ dsi.perf_start_time_auto = ktime_get(); ++} ++ ++static void dsi_perf_show(const char *name) ++{ ++ ktime_t t, setup_time, trans_time; ++ u32 total_bytes; ++ u32 setup_us, trans_us, total_us; ++ ++ if (!dsi_perf) ++ return; ++ ++ if (dsi.update_mode == OMAP_DSS_UPDATE_DISABLED) ++ return; ++ ++ t = ktime_get(); ++ ++ setup_time = ktime_sub(dsi.perf_start_time, dsi.perf_setup_time); ++ setup_us = (u32)ktime_to_us(setup_time); ++ if (setup_us == 0) ++ setup_us = 1; ++ ++ trans_time = ktime_sub(t, dsi.perf_start_time); ++ trans_us = (u32)ktime_to_us(trans_time); ++ if (trans_us == 0) ++ trans_us = 1; ++ ++ total_us = setup_us + trans_us; ++ ++ total_bytes = dsi.active_update_region.w * ++ dsi.active_update_region.h * ++ dsi.active_update_region.device->ctrl.pixel_size / 8; ++ ++ if (dsi.update_mode == OMAP_DSS_UPDATE_AUTO) { ++ static u32 s_total_trans_us, s_total_setup_us; ++ static u32 s_min_trans_us = 0xffffffff, s_min_setup_us; ++ static u32 s_max_trans_us, s_max_setup_us; ++ const int numframes = 100; ++ ktime_t total_time_auto; ++ u32 total_time_auto_us; ++ ++ dsi.perf_measure_frames++; ++ ++ if (setup_us < s_min_setup_us) ++ s_min_setup_us = setup_us; ++ ++ if (setup_us > s_max_setup_us) ++ s_max_setup_us = setup_us; ++ ++ s_total_setup_us += setup_us; ++ ++ if (trans_us < s_min_trans_us) ++ s_min_trans_us = trans_us; ++ ++ if (trans_us > s_max_trans_us) ++ s_max_trans_us = trans_us; ++ ++ s_total_trans_us += trans_us; ++ ++ if (dsi.perf_measure_frames < numframes) ++ return; ++ ++ total_time_auto = ktime_sub(t, dsi.perf_start_time_auto); ++ total_time_auto_us = (u32)ktime_to_us(total_time_auto); ++ ++ printk(KERN_INFO "DSI(%s): %u fps, setup %u/%u/%u, " ++ "trans %u/%u/%u\n", ++ name, ++ 1000 * 1000 * numframes / total_time_auto_us, ++ s_min_setup_us, ++ s_max_setup_us, ++ s_total_setup_us / numframes, ++ s_min_trans_us, ++ s_max_trans_us, ++ s_total_trans_us / numframes); ++ ++ s_total_setup_us = 0; ++ s_min_setup_us = 0xffffffff; ++ s_max_setup_us = 0; ++ s_total_trans_us = 0; ++ s_min_trans_us = 0xffffffff; ++ s_max_trans_us = 0; ++ dsi_perf_mark_start_auto(); ++ } else { ++ printk(KERN_INFO "DSI(%s): %u us + %u us = %u us (%uHz), " ++ "%u bytes, %u kbytes/sec\n", ++ name, ++ setup_us, ++ trans_us, ++ total_us, ++ 1000*1000 / total_us, ++ total_bytes, ++ total_bytes * 1000 / total_us); ++ } ++} ++#else ++#define dsi_perf_mark_setup() ++#define dsi_perf_mark_start() ++#define dsi_perf_mark_start_auto() ++#define dsi_perf_show(x) ++#endif ++ ++static void print_irq_status(u32 status) ++{ ++#ifndef VERBOSE_IRQ ++ if ((status & ~DSI_IRQ_CHANNEL_MASK) == 0) ++ return; ++#endif ++ printk(KERN_DEBUG "DSI IRQ: 0x%x: ", status); ++ ++#define PIS(x) \ ++ if (status & DSI_IRQ_##x) \ ++ printk(#x " "); ++#ifdef VERBOSE_IRQ ++ PIS(VC0); ++ PIS(VC1); ++ PIS(VC2); ++ PIS(VC3); ++#endif ++ PIS(WAKEUP); ++ PIS(RESYNC); ++ PIS(PLL_LOCK); ++ PIS(PLL_UNLOCK); ++ PIS(PLL_RECALL); ++ PIS(COMPLEXIO_ERR); ++ PIS(HS_TX_TIMEOUT); ++ PIS(LP_RX_TIMEOUT); ++ PIS(TE_TRIGGER); ++ PIS(ACK_TRIGGER); ++ PIS(SYNC_LOST); ++ PIS(LDO_POWER_GOOD); ++ PIS(TA_TIMEOUT); ++#undef PIS ++ ++ printk("\n"); ++} ++ ++static void print_irq_status_vc(int channel, u32 status) ++{ ++#ifndef VERBOSE_IRQ ++ if ((status & ~DSI_VC_IRQ_PACKET_SENT) == 0) ++ return; ++#endif ++ printk(KERN_DEBUG "DSI VC(%d) IRQ 0x%x: ", channel, status); ++ ++#define PIS(x) \ ++ if (status & DSI_VC_IRQ_##x) \ ++ printk(#x " "); ++ PIS(CS); ++ PIS(ECC_CORR); ++#ifdef VERBOSE_IRQ ++ PIS(PACKET_SENT); ++#endif ++ PIS(FIFO_TX_OVF); ++ PIS(FIFO_RX_OVF); ++ PIS(BTA); ++ PIS(ECC_NO_CORR); ++ PIS(FIFO_TX_UDF); ++ PIS(PP_BUSY_CHANGE); ++#undef PIS ++ printk("\n"); ++} ++ ++static void print_irq_status_cio(u32 status) ++{ ++ printk(KERN_DEBUG "DSI CIO IRQ 0x%x: ", status); ++ ++#define PIS(x) \ ++ if (status & DSI_CIO_IRQ_##x) \ ++ printk(#x " "); ++ PIS(ERRSYNCESC1); ++ PIS(ERRSYNCESC2); ++ PIS(ERRSYNCESC3); ++ PIS(ERRESC1); ++ PIS(ERRESC2); ++ PIS(ERRESC3); ++ PIS(ERRCONTROL1); ++ PIS(ERRCONTROL2); ++ PIS(ERRCONTROL3); ++ PIS(STATEULPS1); ++ PIS(STATEULPS2); ++ PIS(STATEULPS3); ++ PIS(ERRCONTENTIONLP0_1); ++ PIS(ERRCONTENTIONLP1_1); ++ PIS(ERRCONTENTIONLP0_2); ++ PIS(ERRCONTENTIONLP1_2); ++ PIS(ERRCONTENTIONLP0_3); ++ PIS(ERRCONTENTIONLP1_3); ++ PIS(ULPSACTIVENOT_ALL0); ++ PIS(ULPSACTIVENOT_ALL1); ++#undef PIS ++ ++ printk("\n"); ++} ++ ++static int debug_irq; ++ ++/* called from dss */ ++void dsi_irq_handler(void) ++{ ++ u32 irqstatus, vcstatus, ciostatus; ++ int i; ++ ++ irqstatus = dsi_read_reg(DSI_IRQSTATUS); ++ ++ if (irqstatus & DSI_IRQ_ERROR_MASK) { ++ DSSERR("DSI error, irqstatus %x\n", irqstatus); ++ print_irq_status(irqstatus); ++ spin_lock(&dsi.errors_lock); ++ dsi.errors |= irqstatus & DSI_IRQ_ERROR_MASK; ++ spin_unlock(&dsi.errors_lock); ++ } else if (debug_irq) { ++ print_irq_status(irqstatus); ++ } ++ ++ for (i = 0; i < 4; ++i) { ++ if ((irqstatus & (1<<i)) == 0) ++ continue; ++ ++ vcstatus = dsi_read_reg(DSI_VC_IRQSTATUS(i)); ++ ++ if (vcstatus & DSI_VC_IRQ_BTA) ++ complete(&dsi.bta_completion); ++ ++ if (vcstatus & DSI_VC_IRQ_ERROR_MASK) { ++ DSSERR("DSI VC(%d) error, vc irqstatus %x\n", ++ i, vcstatus); ++ print_irq_status_vc(i, vcstatus); ++ } else if (debug_irq) { ++ print_irq_status_vc(i, vcstatus); ++ } ++ ++ dsi_write_reg(DSI_VC_IRQSTATUS(i), vcstatus); ++ } ++ ++ if (irqstatus & DSI_IRQ_COMPLEXIO_ERR) { ++ ciostatus = dsi_read_reg(DSI_COMPLEXIO_IRQ_STATUS); ++ ++ dsi_write_reg(DSI_COMPLEXIO_IRQ_STATUS, ciostatus); ++ ++ DSSERR("DSI CIO error, cio irqstatus %x\n", ciostatus); ++ print_irq_status_cio(ciostatus); ++ } ++ ++ dsi_write_reg(DSI_IRQSTATUS, irqstatus & ~DSI_IRQ_CHANNEL_MASK); ++} ++ ++ ++static void _dsi_initialize_irq(void) ++{ ++ u32 l; ++ int i; ++ ++ /* disable all interrupts */ ++ dsi_write_reg(DSI_IRQENABLE, 0); ++ for (i = 0; i < 4; ++i) ++ dsi_write_reg(DSI_VC_IRQENABLE(i), 0); ++ dsi_write_reg(DSI_COMPLEXIO_IRQ_ENABLE, 0); ++ ++ /* clear interrupt status */ ++ l = dsi_read_reg(DSI_IRQSTATUS); ++ dsi_write_reg(DSI_IRQSTATUS, l & ~DSI_IRQ_CHANNEL_MASK); ++ ++ for (i = 0; i < 4; ++i) { ++ l = dsi_read_reg(DSI_VC_IRQSTATUS(i)); ++ dsi_write_reg(DSI_VC_IRQSTATUS(i), l); ++ } ++ ++ l = dsi_read_reg(DSI_COMPLEXIO_IRQ_STATUS); ++ dsi_write_reg(DSI_COMPLEXIO_IRQ_STATUS, l); ++ ++ /* enable error irqs */ ++ l = DSI_IRQ_ERROR_MASK; ++ dsi_write_reg(DSI_IRQENABLE, l); ++ ++ l = DSI_VC_IRQ_ERROR_MASK; ++ for (i = 0; i < 4; ++i) ++ dsi_write_reg(DSI_VC_IRQENABLE(i), l); ++ ++ /* XXX zonda responds incorrectly, causing control error: ++ Exit from LP-ESC mode to LP11 uses wrong transition states on the ++ data lines LP0 and LN0. */ ++ dsi_write_reg(DSI_COMPLEXIO_IRQ_ENABLE, ++ -1 & (~DSI_CIO_IRQ_ERRCONTROL2)); ++} ++ ++static u32 dsi_get_errors(void) ++{ ++ unsigned long flags; ++ u32 e; ++ spin_lock_irqsave(&dsi.errors_lock, flags); ++ e = dsi.errors; ++ dsi.errors = 0; ++ spin_unlock_irqrestore(&dsi.errors_lock, flags); ++ return e; ++} ++ ++static void dsi_vc_enable_bta_irq(int channel) ++{ ++ u32 l; ++ ++ dsi_write_reg(DSI_VC_IRQSTATUS(channel), DSI_VC_IRQ_BTA); ++ ++ l = dsi_read_reg(DSI_VC_IRQENABLE(channel)); ++ l |= DSI_VC_IRQ_BTA; ++ dsi_write_reg(DSI_VC_IRQENABLE(channel), l); ++} ++ ++static void dsi_vc_disable_bta_irq(int channel) ++{ ++ u32 l; ++ ++ l = dsi_read_reg(DSI_VC_IRQENABLE(channel)); ++ l &= ~DSI_VC_IRQ_BTA; ++ dsi_write_reg(DSI_VC_IRQENABLE(channel), l); ++} ++ ++/* DSI func clock. this could also be DSI2_PLL_FCLK */ ++static inline void enable_clocks(bool enable) ++{ ++ if (enable) ++ dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1); ++ else ++ dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1); ++} ++ ++/* source clock for DSI PLL. this could also be PCLKFREE */ ++static inline void dsi_enable_pll_clock(bool enable) ++{ ++ if (enable) ++ dss_clk_enable(DSS_CLK_FCK2); ++ else ++ dss_clk_disable(DSS_CLK_FCK2); ++ ++ if (enable && dsi.pll_locked) { ++ if (wait_for_bit_change(DSI_PLL_STATUS, 1, 1) != 1) ++ DSSERR("cannot lock PLL when enabling clocks\n"); ++ } ++} ++ ++#ifdef DEBUG ++static void _dsi_print_reset_status(void) ++{ ++ u32 l; ++ ++ if (!dss_debug) ++ return; ++ ++ /* A dummy read using the SCP interface to any DSIPHY register is ++ * required after DSIPHY reset to complete the reset of the DSI complex ++ * I/O. */ ++ l = dsi_read_reg(DSI_DSIPHY_CFG5); ++ ++ printk(KERN_DEBUG "DSI resets: "); ++ ++ l = dsi_read_reg(DSI_PLL_STATUS); ++ printk("PLL (%d) ", FLD_GET(l, 0, 0)); ++ ++ l = dsi_read_reg(DSI_COMPLEXIO_CFG1); ++ printk("CIO (%d) ", FLD_GET(l, 29, 29)); ++ ++ l = dsi_read_reg(DSI_DSIPHY_CFG5); ++ printk("PHY (%x, %d, %d, %d)\n", ++ FLD_GET(l, 28, 26), ++ FLD_GET(l, 29, 29), ++ FLD_GET(l, 30, 30), ++ FLD_GET(l, 31, 31)); ++} ++#else ++#define _dsi_print_reset_status() ++#endif ++ ++static inline int dsi_if_enable(bool enable) ++{ ++ DSSDBG("dsi_if_enable(%d)\n", enable); ++ ++ enable = enable ? 1 : 0; ++ REG_FLD_MOD(DSI_CTRL, enable, 0, 0); /* IF_EN */ ++ ++ if (wait_for_bit_change(DSI_CTRL, 0, enable) != enable) { ++ DSSERR("Failed to set dsi_if_enable to %d\n", enable); ++ return -EIO; ++ } ++ ++ return 0; ++} ++ ++static unsigned long dsi_fclk_rate(void) ++{ ++ unsigned long r; ++ ++ if (dss_get_dsi_clk_source() == 0) { ++ /* DSI FCLK source is DSS1_ALWON_FCK, which is dss1_fck */ ++ r = dss_clk_get_rate(DSS_CLK_FCK1); ++ } else { ++ /* DSI FCLK source is DSI2_PLL_FCLK */ ++ r = dsi.dsi2_pll_fclk; ++ } ++ ++ return r; ++} ++ ++static int dsi_set_lp_clk_divisor(struct omap_dss_device *dssdev) ++{ ++ unsigned n; ++ unsigned long dsi_fclk; ++ unsigned long lp_clk, lp_clk_req; ++ ++ dsi_fclk = dsi_fclk_rate(); ++ ++ lp_clk_req = dssdev->phy.dsi.lp_clk_hz; ++ ++ for (n = 1; n < (1 << 13) - 1; ++n) { ++ lp_clk = dsi_fclk / 2 / n; ++ if (lp_clk <= lp_clk_req) ++ break; ++ } ++ ++ if (n == (1 << 13) - 1) { ++ DSSERR("Failed to find LP_CLK_DIVISOR\n"); ++ return -EINVAL; ++ } ++ ++ DSSDBG("LP_CLK_DIV %u, LP_CLK %lu (req %lu)\n", n, lp_clk, lp_clk_req); ++ ++ REG_FLD_MOD(DSI_CLK_CTRL, n, 12, 0); /* LP_CLK_DIVISOR */ ++ if (dsi_fclk > 30*1000*1000) ++ REG_FLD_MOD(DSI_CLK_CTRL, 1, 21, 21); /* LP_RX_SYNCHRO_ENABLE */ ++ ++ return 0; ++} ++ ++ ++enum dsi_pll_power_state { ++ DSI_PLL_POWER_OFF = 0x0, ++ DSI_PLL_POWER_ON_HSCLK = 0x1, ++ DSI_PLL_POWER_ON_ALL = 0x2, ++ DSI_PLL_POWER_ON_DIV = 0x3, ++}; ++ ++static int dsi_pll_power(enum dsi_pll_power_state state) ++{ ++ int t = 0; ++ ++ REG_FLD_MOD(DSI_CLK_CTRL, state, 31, 30); /* PLL_PWR_CMD */ ++ ++ /* PLL_PWR_STATUS */ ++ while (FLD_GET(dsi_read_reg(DSI_CLK_CTRL), 29, 28) != state) { ++ udelay(1); ++ if (t++ > 1000) { ++ DSSERR("Failed to set DSI PLL power mode to %d\n", ++ state); ++ return -ENODEV; ++ } ++ } ++ ++ return 0; ++} ++ ++int dsi_pll_calc_pck(bool is_tft, unsigned long req_pck, ++ struct dsi_clock_info *cinfo) ++{ ++ struct dsi_clock_info cur, best; ++ int min_fck_per_pck; ++ int match = 0; ++ unsigned long dss_clk_fck2; ++ ++ dss_clk_fck2 = dss_clk_get_rate(DSS_CLK_FCK2); ++ ++ if (req_pck == dsi.cache_req_pck && ++ dsi.cache_cinfo.clkin == dss_clk_fck2) { ++ DSSDBG("DSI clock info found from cache\n"); ++ *cinfo = dsi.cache_cinfo; ++ return 0; ++ } ++ ++ min_fck_per_pck = CONFIG_OMAP2_DSS_MIN_FCK_PER_PCK; ++ ++ if (min_fck_per_pck && ++ req_pck * min_fck_per_pck > DISPC_MAX_FCK) { ++ DSSERR("Requested pixel clock not possible with the current " ++ "OMAP2_DSS_MIN_FCK_PER_PCK setting. Turning " ++ "the constraint off.\n"); ++ min_fck_per_pck = 0; ++ } ++ ++ DSSDBG("dsi_pll_calc\n"); ++ ++retry: ++ memset(&best, 0, sizeof(best)); ++ ++ memset(&cur, 0, sizeof(cur)); ++ cur.clkin = dss_clk_fck2; ++ cur.use_dss2_fck = 1; ++ cur.highfreq = 0; ++ ++ /* no highfreq: 0.75MHz < Fint = clkin / regn < 2.1MHz */ ++ /* highfreq: 0.75MHz < Fint = clkin / (2*regn) < 2.1MHz */ ++ /* To reduce PLL lock time, keep Fint high (around 2 MHz) */ ++ for (cur.regn = 1; cur.regn < REGN_MAX; ++cur.regn) { ++ if (cur.highfreq == 0) ++ cur.fint = cur.clkin / cur.regn; ++ else ++ cur.fint = cur.clkin / (2 * cur.regn); ++ ++ if (cur.fint > FINT_MAX || cur.fint < FINT_MIN) ++ continue; ++ ++ /* DSIPHY(MHz) = (2 * regm / regn) * (clkin / (highfreq + 1)) */ ++ for (cur.regm = 1; cur.regm < REGM_MAX; ++cur.regm) { ++ unsigned long a, b; ++ ++ a = 2 * cur.regm * (cur.clkin/1000); ++ b = cur.regn * (cur.highfreq + 1); ++ cur.dsiphy = a / b * 1000; ++ ++ if (cur.dsiphy > 1800 * 1000 * 1000) ++ break; ++ ++ /* DSI1_PLL_FCLK(MHz) = DSIPHY(MHz) / regm3 < 173MHz */ ++ for (cur.regm3 = 1; cur.regm3 < REGM3_MAX; ++ ++cur.regm3) { ++ cur.dsi1_pll_fclk = cur.dsiphy / cur.regm3; ++ ++ /* this will narrow down the search a bit, ++ * but still give pixclocks below what was ++ * requested */ ++ if (cur.dsi1_pll_fclk < req_pck) ++ break; ++ ++ if (cur.dsi1_pll_fclk > DISPC_MAX_FCK) ++ continue; ++ ++ if (min_fck_per_pck && ++ cur.dsi1_pll_fclk < ++ req_pck * min_fck_per_pck) ++ continue; ++ ++ match = 1; ++ ++ find_lck_pck_divs(is_tft, req_pck, ++ cur.dsi1_pll_fclk, ++ &cur.lck_div, ++ &cur.pck_div); ++ ++ cur.lck = cur.dsi1_pll_fclk / cur.lck_div; ++ cur.pck = cur.lck / cur.pck_div; ++ ++ if (abs(cur.pck - req_pck) < ++ abs(best.pck - req_pck)) { ++ best = cur; ++ ++ if (cur.pck == req_pck) ++ goto found; ++ } ++ } ++ } ++ } ++found: ++ if (!match) { ++ if (min_fck_per_pck) { ++ DSSERR("Could not find suitable clock settings.\n" ++ "Turning FCK/PCK constraint off and" ++ "trying again.\n"); ++ min_fck_per_pck = 0; ++ goto retry; ++ } ++ ++ DSSERR("Could not find suitable clock settings.\n"); ++ ++ return -EINVAL; ++ } ++ ++ /* DSI2_PLL_FCLK (regm4) is not used. Set it to something sane. */ ++ best.regm4 = best.dsiphy / 48000000; ++ if (best.regm4 > REGM4_MAX) ++ best.regm4 = REGM4_MAX; ++ else if (best.regm4 == 0) ++ best.regm4 = 1; ++ best.dsi2_pll_fclk = best.dsiphy / best.regm4; ++ ++ if (cinfo) ++ *cinfo = best; ++ ++ dsi.cache_req_pck = req_pck; ++ dsi.cache_clk_freq = 0; ++ dsi.cache_cinfo = best; ++ ++ return 0; ++} ++ ++static int dsi_pll_calc_ddrfreq(unsigned long clk_freq, ++ struct dsi_clock_info *cinfo) ++{ ++ struct dsi_clock_info cur, best; ++ const bool use_dss2_fck = 1; ++ unsigned long datafreq; ++ unsigned long dss_clk_fck2; ++ ++ DSSDBG("dsi_pll_calc_ddrfreq\n"); ++ ++ dss_clk_fck2 = dss_clk_get_rate(DSS_CLK_FCK2); ++ ++ if (clk_freq == dsi.cache_clk_freq && ++ dsi.cache_cinfo.clkin == dss_clk_fck2) { ++ DSSDBG("DSI clock info found from cache\n"); ++ *cinfo = dsi.cache_cinfo; ++ return 0; ++ } ++ ++ datafreq = clk_freq * 4; ++ ++ memset(&best, 0, sizeof(best)); ++ ++ memset(&cur, 0, sizeof(cur)); ++ cur.use_dss2_fck = use_dss2_fck; ++ if (use_dss2_fck) { ++ cur.clkin = dss_clk_fck2; ++ cur.highfreq = 0; ++ } else { ++ cur.clkin = dispc_pclk_rate(); ++ if (cur.clkin < 32000000) ++ cur.highfreq = 0; ++ else ++ cur.highfreq = 1; ++ } ++ ++ /* no highfreq: 0.75MHz < Fint = clkin / regn < 2.1MHz */ ++ /* highfreq: 0.75MHz < Fint = clkin / (2*regn) < 2.1MHz */ ++ /* To reduce PLL lock time, keep Fint high (around 2 MHz) */ ++ for (cur.regn = 1; cur.regn < REGN_MAX; ++cur.regn) { ++ if (cur.highfreq == 0) ++ cur.fint = cur.clkin / cur.regn; ++ else ++ cur.fint = cur.clkin / (2 * cur.regn); ++ ++ if (cur.fint > FINT_MAX || cur.fint < FINT_MIN) ++ continue; ++ ++ /* DSIPHY(MHz) = (2 * regm / regn) * (clkin / (highfreq + 1)) */ ++ for (cur.regm = 1; cur.regm < REGM_MAX; ++cur.regm) { ++ unsigned long a, b; ++ ++ a = 2 * cur.regm * (cur.clkin/1000); ++ b = cur.regn * (cur.highfreq + 1); ++ cur.dsiphy = a / b * 1000; ++ ++ if (cur.dsiphy > 1800 * 1000 * 1000) ++ break; ++ ++ if (abs(cur.dsiphy - datafreq) < ++ abs(best.dsiphy - datafreq)) { ++ best = cur; ++ /* DSSDBG("best %ld\n", best.dsiphy); */ ++ } ++ ++ if (cur.dsiphy == datafreq) ++ goto found; ++ } ++ } ++found: ++ /* DSI1_PLL_FCLK (regm3) is not used. Set it to something sane. */ ++ best.regm3 = best.dsiphy / 48000000; ++ if (best.regm3 > REGM3_MAX) ++ best.regm3 = REGM3_MAX; ++ else if (best.regm3 == 0) ++ best.regm3 = 1; ++ best.dsi1_pll_fclk = best.dsiphy / best.regm3; ++ ++ /* DSI2_PLL_FCLK (regm4) is not used. Set it to something sane. */ ++ best.regm4 = best.dsiphy / 48000000; ++ if (best.regm4 > REGM4_MAX) ++ best.regm4 = REGM4_MAX; ++ else if (best.regm4 == 0) ++ best.regm4 = 1; ++ best.dsi2_pll_fclk = best.dsiphy / best.regm4; ++ ++ if (cinfo) ++ *cinfo = best; ++ ++ dsi.cache_clk_freq = clk_freq; ++ dsi.cache_req_pck = 0; ++ dsi.cache_cinfo = best; ++ ++ return 0; ++} ++ ++int dsi_pll_program(struct dsi_clock_info *cinfo) ++{ ++ int r = 0; ++ u32 l; ++ ++ DSSDBG("dsi_pll_program\n"); ++ ++ dsi.dsiphy = cinfo->dsiphy; ++ dsi.ddr_clk = dsi.dsiphy / 4; ++ dsi.dsi1_pll_fclk = cinfo->dsi1_pll_fclk; ++ dsi.dsi2_pll_fclk = cinfo->dsi2_pll_fclk; ++ ++ DSSDBG("DSI Fint %ld\n", cinfo->fint); ++ ++ DSSDBG("clkin (%s) rate %ld, highfreq %d\n", ++ cinfo->use_dss2_fck ? "dss2_fck" : "pclkfree", ++ cinfo->clkin, ++ cinfo->highfreq); ++ ++ /* DSIPHY == CLKIN4DDR */ ++ DSSDBG("DSIPHY = 2 * %d / %d * %lu / %d = %lu\n", ++ cinfo->regm, ++ cinfo->regn, ++ cinfo->clkin, ++ cinfo->highfreq + 1, ++ cinfo->dsiphy); ++ ++ DSSDBG("Data rate on 1 DSI lane %ld Mbps\n", ++ dsi.dsiphy / 1000 / 1000 / 2); ++ ++ DSSDBG("Clock lane freq %ld Hz\n", dsi.ddr_clk); ++ ++ DSSDBG("regm3 = %d, dsi1_pll_fclk = %lu\n", ++ cinfo->regm3, cinfo->dsi1_pll_fclk); ++ DSSDBG("regm4 = %d, dsi2_pll_fclk = %lu\n", ++ cinfo->regm4, cinfo->dsi2_pll_fclk); ++ ++ REG_FLD_MOD(DSI_PLL_CONTROL, 0, 0, 0); /* DSI_PLL_AUTOMODE = manual */ ++ ++ l = dsi_read_reg(DSI_PLL_CONFIGURATION1); ++ l = FLD_MOD(l, 1, 0, 0); /* DSI_PLL_STOPMODE */ ++ l = FLD_MOD(l, cinfo->regn - 1, 7, 1); /* DSI_PLL_REGN */ ++ l = FLD_MOD(l, cinfo->regm, 18, 8); /* DSI_PLL_REGM */ ++ l = FLD_MOD(l, cinfo->regm3 - 1, 22, 19); /* DSI_CLOCK_DIV */ ++ l = FLD_MOD(l, cinfo->regm4 - 1, 26, 23); /* DSIPROTO_CLOCK_DIV */ ++ dsi_write_reg(DSI_PLL_CONFIGURATION1, l); ++ ++ l = dsi_read_reg(DSI_PLL_CONFIGURATION2); ++ l = FLD_MOD(l, 7, 4, 1); /* DSI_PLL_FREQSEL */ ++ /* DSI_PLL_CLKSEL */ ++ l = FLD_MOD(l, cinfo->use_dss2_fck ? 0 : 1, 11, 11); ++ l = FLD_MOD(l, cinfo->highfreq, 12, 12); /* DSI_PLL_HIGHFREQ */ ++ l = FLD_MOD(l, 1, 13, 13); /* DSI_PLL_REFEN */ ++ l = FLD_MOD(l, 0, 14, 14); /* DSIPHY_CLKINEN */ ++ l = FLD_MOD(l, 1, 20, 20); /* DSI_HSDIVBYPASS */ ++ dsi_write_reg(DSI_PLL_CONFIGURATION2, l); ++ ++ REG_FLD_MOD(DSI_PLL_GO, 1, 0, 0); /* DSI_PLL_GO */ ++ ++ if (wait_for_bit_change(DSI_PLL_GO, 0, 0) != 0) { ++ DSSERR("dsi pll go bit not going down.\n"); ++ r = -EIO; ++ goto err; ++ } ++ ++ if (wait_for_bit_change(DSI_PLL_STATUS, 1, 1) != 1) { ++ DSSERR("cannot lock PLL\n"); ++ r = -EIO; ++ goto err; ++ } ++ ++ dsi.pll_locked = 1; ++ ++ l = dsi_read_reg(DSI_PLL_CONFIGURATION2); ++ l = FLD_MOD(l, 0, 0, 0); /* DSI_PLL_IDLE */ ++ l = FLD_MOD(l, 0, 5, 5); /* DSI_PLL_PLLLPMODE */ ++ l = FLD_MOD(l, 0, 6, 6); /* DSI_PLL_LOWCURRSTBY */ ++ l = FLD_MOD(l, 0, 7, 7); /* DSI_PLL_TIGHTPHASELOCK */ ++ l = FLD_MOD(l, 0, 8, 8); /* DSI_PLL_DRIFTGUARDEN */ ++ l = FLD_MOD(l, 0, 10, 9); /* DSI_PLL_LOCKSEL */ ++ l = FLD_MOD(l, 1, 13, 13); /* DSI_PLL_REFEN */ ++ l = FLD_MOD(l, 1, 14, 14); /* DSIPHY_CLKINEN */ ++ l = FLD_MOD(l, 0, 15, 15); /* DSI_BYPASSEN */ ++ l = FLD_MOD(l, 1, 16, 16); /* DSS_CLOCK_EN */ ++ l = FLD_MOD(l, 0, 17, 17); /* DSS_CLOCK_PWDN */ ++ l = FLD_MOD(l, 1, 18, 18); /* DSI_PROTO_CLOCK_EN */ ++ l = FLD_MOD(l, 0, 19, 19); /* DSI_PROTO_CLOCK_PWDN */ ++ l = FLD_MOD(l, 0, 20, 20); /* DSI_HSDIVBYPASS */ ++ dsi_write_reg(DSI_PLL_CONFIGURATION2, l); ++ ++ DSSDBG("PLL config done\n"); ++err: ++ return r; ++} ++ ++int dsi_pll_init(bool enable_hsclk, bool enable_hsdiv) ++{ ++ int r = 0; ++ enum dsi_pll_power_state pwstate; ++ struct dispc_clock_info cinfo; ++ ++ DSSDBG("PLL init\n"); ++ ++ enable_clocks(1); ++ dsi_enable_pll_clock(1); ++ ++ /* XXX this should be calculated depending on the screen size, ++ * required framerate and DSI speed. ++ * For now 48MHz is enough for 864x480@60 with 360Mbps/lane ++ * with two lanes */ ++ r = dispc_calc_clock_div(1, 48 * 1000 * 1000, &cinfo); ++ if (r) ++ goto err0; ++ ++ r = dispc_set_clock_div(&cinfo); ++ if (r) { ++ DSSERR("Failed to set basic clocks\n"); ++ goto err0; ++ } ++ ++ r = regulator_enable(dsi.vdds_dsi_reg); ++ if (r) ++ goto err0; ++ ++ /* XXX PLL does not come out of reset without this... */ ++ dispc_pck_free_enable(1); ++ ++ if (wait_for_bit_change(DSI_PLL_STATUS, 0, 1) != 1) { ++ DSSERR("PLL not coming out of reset.\n"); ++ r = -ENODEV; ++ goto err1; ++ } ++ ++ /* XXX ... but if left on, we get problems when planes do not ++ * fill the whole display. No idea about this */ ++ dispc_pck_free_enable(0); ++ ++ if (enable_hsclk && enable_hsdiv) ++ pwstate = DSI_PLL_POWER_ON_ALL; ++ else if (enable_hsclk) ++ pwstate = DSI_PLL_POWER_ON_HSCLK; ++ else if (enable_hsdiv) ++ pwstate = DSI_PLL_POWER_ON_DIV; ++ else ++ pwstate = DSI_PLL_POWER_OFF; ++ ++ r = dsi_pll_power(pwstate); ++ ++ if (r) ++ goto err1; ++ ++ DSSDBG("PLL init done\n"); ++ ++ return 0; ++err1: ++ regulator_disable(dsi.vdds_dsi_reg); ++err0: ++ enable_clocks(0); ++ dsi_enable_pll_clock(0); ++ return r; ++} ++ ++void dsi_pll_uninit(void) ++{ ++ enable_clocks(0); ++ dsi_enable_pll_clock(0); ++ ++ dsi.pll_locked = 0; ++ dsi_pll_power(DSI_PLL_POWER_OFF); ++ regulator_disable(dsi.vdds_dsi_reg); ++ DSSDBG("PLL uninit done\n"); ++} ++ ++unsigned long dsi_get_dsi1_pll_rate(void) ++{ ++ return dsi.dsi1_pll_fclk; ++} ++ ++unsigned long dsi_get_dsi2_pll_rate(void) ++{ ++ return dsi.dsi2_pll_fclk; ++} ++ ++void dsi_dump_clocks(struct seq_file *s) ++{ ++ int clksel; ++ ++ enable_clocks(1); ++ ++ clksel = REG_GET(DSI_PLL_CONFIGURATION2, 11, 11); ++ ++ seq_printf(s, "- dsi -\n"); ++ ++ seq_printf(s, "dsi fclk source = %s\n", ++ dss_get_dsi_clk_source() == 0 ? ++ "dss1_alwon_fclk" : "dsi2_pll_fclk"); ++ ++ seq_printf(s, "dsi pll source = %s\n", ++ clksel == 0 ? ++ "dss2_alwon_fclk" : "pclkfree"); ++ ++ seq_printf(s, "DSIPHY\t\t%lu\nDDR_CLK\t\t%lu\n", ++ dsi.dsiphy, dsi.ddr_clk); ++ ++ seq_printf(s, "dsi1_pll_fck\t%lu (%s)\n" ++ "dsi2_pll_fck\t%lu (%s)\n", ++ dsi.dsi1_pll_fclk, ++ dss_get_dispc_clk_source() == 0 ? "off" : "on", ++ dsi.dsi2_pll_fclk, ++ dss_get_dsi_clk_source() == 0 ? "off" : "on"); ++ ++ enable_clocks(0); ++} ++ ++void dsi_dump_regs(struct seq_file *s) ++{ ++#define DUMPREG(r) seq_printf(s, "%-35s %08x\n", #r, dsi_read_reg(r)) ++ ++ dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1); ++ ++ DUMPREG(DSI_REVISION); ++ DUMPREG(DSI_SYSCONFIG); ++ DUMPREG(DSI_SYSSTATUS); ++ DUMPREG(DSI_IRQSTATUS); ++ DUMPREG(DSI_IRQENABLE); ++ DUMPREG(DSI_CTRL); ++ DUMPREG(DSI_COMPLEXIO_CFG1); ++ DUMPREG(DSI_COMPLEXIO_IRQ_STATUS); ++ DUMPREG(DSI_COMPLEXIO_IRQ_ENABLE); ++ DUMPREG(DSI_CLK_CTRL); ++ DUMPREG(DSI_TIMING1); ++ DUMPREG(DSI_TIMING2); ++ DUMPREG(DSI_VM_TIMING1); ++ DUMPREG(DSI_VM_TIMING2); ++ DUMPREG(DSI_VM_TIMING3); ++ DUMPREG(DSI_CLK_TIMING); ++ DUMPREG(DSI_TX_FIFO_VC_SIZE); ++ DUMPREG(DSI_RX_FIFO_VC_SIZE); ++ DUMPREG(DSI_COMPLEXIO_CFG2); ++ DUMPREG(DSI_RX_FIFO_VC_FULLNESS); ++ DUMPREG(DSI_VM_TIMING4); ++ DUMPREG(DSI_TX_FIFO_VC_EMPTINESS); ++ DUMPREG(DSI_VM_TIMING5); ++ DUMPREG(DSI_VM_TIMING6); ++ DUMPREG(DSI_VM_TIMING7); ++ DUMPREG(DSI_STOPCLK_TIMING); ++ ++ DUMPREG(DSI_VC_CTRL(0)); ++ DUMPREG(DSI_VC_TE(0)); ++ DUMPREG(DSI_VC_LONG_PACKET_HEADER(0)); ++ DUMPREG(DSI_VC_LONG_PACKET_PAYLOAD(0)); ++ DUMPREG(DSI_VC_SHORT_PACKET_HEADER(0)); ++ DUMPREG(DSI_VC_IRQSTATUS(0)); ++ DUMPREG(DSI_VC_IRQENABLE(0)); ++ ++ DUMPREG(DSI_VC_CTRL(1)); ++ DUMPREG(DSI_VC_TE(1)); ++ DUMPREG(DSI_VC_LONG_PACKET_HEADER(1)); ++ DUMPREG(DSI_VC_LONG_PACKET_PAYLOAD(1)); ++ DUMPREG(DSI_VC_SHORT_PACKET_HEADER(1)); ++ DUMPREG(DSI_VC_IRQSTATUS(1)); ++ DUMPREG(DSI_VC_IRQENABLE(1)); ++ ++ DUMPREG(DSI_VC_CTRL(2)); ++ DUMPREG(DSI_VC_TE(2)); ++ DUMPREG(DSI_VC_LONG_PACKET_HEADER(2)); ++ DUMPREG(DSI_VC_LONG_PACKET_PAYLOAD(2)); ++ DUMPREG(DSI_VC_SHORT_PACKET_HEADER(2)); ++ DUMPREG(DSI_VC_IRQSTATUS(2)); ++ DUMPREG(DSI_VC_IRQENABLE(2)); ++ ++ DUMPREG(DSI_VC_CTRL(3)); ++ DUMPREG(DSI_VC_TE(3)); ++ DUMPREG(DSI_VC_LONG_PACKET_HEADER(3)); ++ DUMPREG(DSI_VC_LONG_PACKET_PAYLOAD(3)); ++ DUMPREG(DSI_VC_SHORT_PACKET_HEADER(3)); ++ DUMPREG(DSI_VC_IRQSTATUS(3)); ++ DUMPREG(DSI_VC_IRQENABLE(3)); ++ ++ DUMPREG(DSI_DSIPHY_CFG0); ++ DUMPREG(DSI_DSIPHY_CFG1); ++ DUMPREG(DSI_DSIPHY_CFG2); ++ DUMPREG(DSI_DSIPHY_CFG5); ++ ++ DUMPREG(DSI_PLL_CONTROL); ++ DUMPREG(DSI_PLL_STATUS); ++ DUMPREG(DSI_PLL_GO); ++ DUMPREG(DSI_PLL_CONFIGURATION1); ++ DUMPREG(DSI_PLL_CONFIGURATION2); ++ ++ dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1); ++#undef DUMPREG ++} ++ ++enum dsi_complexio_power_state { ++ DSI_COMPLEXIO_POWER_OFF = 0x0, ++ DSI_COMPLEXIO_POWER_ON = 0x1, ++ DSI_COMPLEXIO_POWER_ULPS = 0x2, ++}; ++ ++static int dsi_complexio_power(enum dsi_complexio_power_state state) ++{ ++ int t = 0; ++ ++ /* PWR_CMD */ ++ REG_FLD_MOD(DSI_COMPLEXIO_CFG1, state, 28, 27); ++ ++ /* PWR_STATUS */ ++ while (FLD_GET(dsi_read_reg(DSI_COMPLEXIO_CFG1), 26, 25) != state) { ++ udelay(1); ++ if (t++ > 1000) { ++ DSSERR("failed to set complexio power state to " ++ "%d\n", state); ++ return -ENODEV; ++ } ++ } ++ ++ return 0; ++} ++ ++static void dsi_complexio_config(struct omap_dss_device *dssdev) ++{ ++ u32 r; ++ ++ int clk_lane = dssdev->phy.dsi.clk_lane; ++ int data1_lane = dssdev->phy.dsi.data1_lane; ++ int data2_lane = dssdev->phy.dsi.data2_lane; ++ int clk_pol = dssdev->phy.dsi.clk_pol; ++ int data1_pol = dssdev->phy.dsi.data1_pol; ++ int data2_pol = dssdev->phy.dsi.data2_pol; ++ ++ r = dsi_read_reg(DSI_COMPLEXIO_CFG1); ++ r = FLD_MOD(r, clk_lane, 2, 0); ++ r = FLD_MOD(r, clk_pol, 3, 3); ++ r = FLD_MOD(r, data1_lane, 6, 4); ++ r = FLD_MOD(r, data1_pol, 7, 7); ++ r = FLD_MOD(r, data2_lane, 10, 8); ++ r = FLD_MOD(r, data2_pol, 11, 11); ++ dsi_write_reg(DSI_COMPLEXIO_CFG1, r); ++ ++ /* The configuration of the DSI complex I/O (number of data lanes, ++ position, differential order) should not be changed while ++ DSS.DSI_CLK_CRTRL[20] LP_CLK_ENABLE bit is set to 1. In order for ++ the hardware to take into account a new configuration of the complex ++ I/O (done in DSS.DSI_COMPLEXIO_CFG1 register), it is recommended to ++ follow this sequence: First set the DSS.DSI_CTRL[0] IF_EN bit to 1, ++ then reset the DSS.DSI_CTRL[0] IF_EN to 0, then set ++ DSS.DSI_CLK_CTRL[20] LP_CLK_ENABLE to 1 and finally set again the ++ DSS.DSI_CTRL[0] IF_EN bit to 1. If the sequence is not followed, the ++ DSI complex I/O configuration is unknown. */ ++ ++ /* ++ REG_FLD_MOD(DSI_CTRL, 1, 0, 0); ++ REG_FLD_MOD(DSI_CTRL, 0, 0, 0); ++ REG_FLD_MOD(DSI_CLK_CTRL, 1, 20, 20); ++ REG_FLD_MOD(DSI_CTRL, 1, 0, 0); ++ */ ++} ++ ++static inline unsigned ns2ddr(unsigned ns) ++{ ++ /* convert time in ns to ddr ticks, rounding up */ ++ return (ns * (dsi.ddr_clk/1000/1000) + 999) / 1000; ++} ++ ++static inline unsigned ddr2ns(unsigned ddr) ++{ ++ return ddr * 1000 * 1000 / (dsi.ddr_clk / 1000); ++} ++ ++static void dsi_complexio_timings(void) ++{ ++ u32 r; ++ u32 ths_prepare, ths_prepare_ths_zero, ths_trail, ths_exit; ++ u32 tlpx_half, tclk_trail, tclk_zero; ++ u32 tclk_prepare; ++ ++ /* calculate timings */ ++ ++ /* 1 * DDR_CLK = 2 * UI */ ++ ++ /* min 40ns + 4*UI max 85ns + 6*UI */ ++ ths_prepare = ns2ddr(70) + 2; ++ ++ /* min 145ns + 10*UI */ ++ ths_prepare_ths_zero = ns2ddr(175) + 2; ++ ++ /* min max(8*UI, 60ns+4*UI) */ ++ ths_trail = ns2ddr(60) + 5; ++ ++ /* min 100ns */ ++ ths_exit = ns2ddr(145); ++ ++ /* tlpx min 50n */ ++ tlpx_half = ns2ddr(25); ++ ++ /* min 60ns */ ++ tclk_trail = ns2ddr(60) + 2; ++ ++ /* min 38ns, max 95ns */ ++ tclk_prepare = ns2ddr(65); ++ ++ /* min tclk-prepare + tclk-zero = 300ns */ ++ tclk_zero = ns2ddr(260); ++ ++ DSSDBG("ths_prepare %u (%uns), ths_prepare_ths_zero %u (%uns)\n", ++ ths_prepare, ddr2ns(ths_prepare), ++ ths_prepare_ths_zero, ddr2ns(ths_prepare_ths_zero)); ++ DSSDBG("ths_trail %u (%uns), ths_exit %u (%uns)\n", ++ ths_trail, ddr2ns(ths_trail), ++ ths_exit, ddr2ns(ths_exit)); ++ ++ DSSDBG("tlpx_half %u (%uns), tclk_trail %u (%uns), " ++ "tclk_zero %u (%uns)\n", ++ tlpx_half, ddr2ns(tlpx_half), ++ tclk_trail, ddr2ns(tclk_trail), ++ tclk_zero, ddr2ns(tclk_zero)); ++ DSSDBG("tclk_prepare %u (%uns)\n", ++ tclk_prepare, ddr2ns(tclk_prepare)); ++ ++ /* program timings */ ++ ++ r = dsi_read_reg(DSI_DSIPHY_CFG0); ++ r = FLD_MOD(r, ths_prepare, 31, 24); ++ r = FLD_MOD(r, ths_prepare_ths_zero, 23, 16); ++ r = FLD_MOD(r, ths_trail, 15, 8); ++ r = FLD_MOD(r, ths_exit, 7, 0); ++ dsi_write_reg(DSI_DSIPHY_CFG0, r); ++ ++ r = dsi_read_reg(DSI_DSIPHY_CFG1); ++ r = FLD_MOD(r, tlpx_half, 22, 16); ++ r = FLD_MOD(r, tclk_trail, 15, 8); ++ r = FLD_MOD(r, tclk_zero, 7, 0); ++ dsi_write_reg(DSI_DSIPHY_CFG1, r); ++ ++ r = dsi_read_reg(DSI_DSIPHY_CFG2); ++ r = FLD_MOD(r, tclk_prepare, 7, 0); ++ dsi_write_reg(DSI_DSIPHY_CFG2, r); ++} ++ ++ ++static int dsi_complexio_init(struct omap_dss_device *dssdev) ++{ ++ int r = 0; ++ ++ DSSDBG("dsi_complexio_init\n"); ++ ++ /* CIO_CLK_ICG, enable L3 clk to CIO */ ++ REG_FLD_MOD(DSI_CLK_CTRL, 1, 14, 14); ++ ++ /* A dummy read using the SCP interface to any DSIPHY register is ++ * required after DSIPHY reset to complete the reset of the DSI complex ++ * I/O. */ ++ dsi_read_reg(DSI_DSIPHY_CFG5); ++ ++ if (wait_for_bit_change(DSI_DSIPHY_CFG5, 30, 1) != 1) { ++ DSSERR("ComplexIO PHY not coming out of reset.\n"); ++ r = -ENODEV; ++ goto err; ++ } ++ ++ dsi_complexio_config(dssdev); ++ ++ r = dsi_complexio_power(DSI_COMPLEXIO_POWER_ON); ++ ++ if (r) ++ goto err; ++ ++ if (wait_for_bit_change(DSI_COMPLEXIO_CFG1, 29, 1) != 1) { ++ DSSERR("ComplexIO not coming out of reset.\n"); ++ r = -ENODEV; ++ goto err; ++ } ++ ++ if (wait_for_bit_change(DSI_COMPLEXIO_CFG1, 21, 1) != 1) { ++ DSSERR("ComplexIO LDO power down.\n"); ++ r = -ENODEV; ++ goto err; ++ } ++ ++ dsi_complexio_timings(); ++ ++ /* ++ The configuration of the DSI complex I/O (number of data lanes, ++ position, differential order) should not be changed while ++ DSS.DSI_CLK_CRTRL[20] LP_CLK_ENABLE bit is set to 1. For the ++ hardware to recognize a new configuration of the complex I/O (done ++ in DSS.DSI_COMPLEXIO_CFG1 register), it is recommended to follow ++ this sequence: First set the DSS.DSI_CTRL[0] IF_EN bit to 1, next ++ reset the DSS.DSI_CTRL[0] IF_EN to 0, then set DSS.DSI_CLK_CTRL[20] ++ LP_CLK_ENABLE to 1, and finally, set again the DSS.DSI_CTRL[0] IF_EN ++ bit to 1. If the sequence is not followed, the DSi complex I/O ++ configuration is undetermined. ++ */ ++ dsi_if_enable(1); ++ dsi_if_enable(0); ++ REG_FLD_MOD(DSI_CLK_CTRL, 1, 20, 20); /* LP_CLK_ENABLE */ ++ dsi_if_enable(1); ++ dsi_if_enable(0); ++ ++ DSSDBG("CIO init done\n"); ++err: ++ return r; ++} ++ ++static void dsi_complexio_uninit(void) ++{ ++ dsi_complexio_power(DSI_COMPLEXIO_POWER_OFF); ++} ++ ++static int _dsi_wait_reset(void) ++{ ++ int i = 0; ++ ++ while (REG_GET(DSI_SYSSTATUS, 0, 0) == 0) { ++ if (i++ > 5) { ++ DSSERR("soft reset failed\n"); ++ return -ENODEV; ++ } ++ udelay(1); ++ } ++ ++ return 0; ++} ++ ++static int _dsi_reset(void) ++{ ++ /* Soft reset */ ++ REG_FLD_MOD(DSI_SYSCONFIG, 1, 1, 1); ++ return _dsi_wait_reset(); ++} ++ ++ ++static void dsi_config_tx_fifo(enum fifo_size size1, enum fifo_size size2, ++ enum fifo_size size3, enum fifo_size size4) ++{ ++ u32 r = 0; ++ int add = 0; ++ int i; ++ ++ dsi.vc[0].fifo_size = size1; ++ dsi.vc[1].fifo_size = size2; ++ dsi.vc[2].fifo_size = size3; ++ dsi.vc[3].fifo_size = size4; ++ ++ for (i = 0; i < 4; i++) { ++ u8 v; ++ int size = dsi.vc[i].fifo_size; ++ ++ if (add + size > 4) { ++ DSSERR("Illegal FIFO configuration\n"); ++ BUG(); ++ } ++ ++ v = FLD_VAL(add, 2, 0) | FLD_VAL(size, 7, 4); ++ r |= v << (8 * i); ++ /*DSSDBG("TX FIFO vc %d: size %d, add %d\n", i, size, add); */ ++ add += size; ++ } ++ ++ dsi_write_reg(DSI_TX_FIFO_VC_SIZE, r); ++} ++ ++static void dsi_config_rx_fifo(enum fifo_size size1, enum fifo_size size2, ++ enum fifo_size size3, enum fifo_size size4) ++{ ++ u32 r = 0; ++ int add = 0; ++ int i; ++ ++ dsi.vc[0].fifo_size = size1; ++ dsi.vc[1].fifo_size = size2; ++ dsi.vc[2].fifo_size = size3; ++ dsi.vc[3].fifo_size = size4; ++ ++ for (i = 0; i < 4; i++) { ++ u8 v; ++ int size = dsi.vc[i].fifo_size; ++ ++ if (add + size > 4) { ++ DSSERR("Illegal FIFO configuration\n"); ++ BUG(); ++ } ++ ++ v = FLD_VAL(add, 2, 0) | FLD_VAL(size, 7, 4); ++ r |= v << (8 * i); ++ /*DSSDBG("RX FIFO vc %d: size %d, add %d\n", i, size, add); */ ++ add += size; ++ } ++ ++ dsi_write_reg(DSI_RX_FIFO_VC_SIZE, r); ++} ++ ++static int dsi_force_tx_stop_mode_io(void) ++{ ++ u32 r; ++ ++ r = dsi_read_reg(DSI_TIMING1); ++ r = FLD_MOD(r, 1, 15, 15); /* FORCE_TX_STOP_MODE_IO */ ++ dsi_write_reg(DSI_TIMING1, r); ++ ++ if (wait_for_bit_change(DSI_TIMING1, 15, 0) != 0) { ++ DSSERR("TX_STOP bit not going down\n"); ++ return -EIO; ++ } ++ ++ return 0; ++} ++ ++static void dsi_vc_print_status(int channel) ++{ ++ u32 r; ++ ++ r = dsi_read_reg(DSI_VC_CTRL(channel)); ++ DSSDBG("vc %d: TX_FIFO_NOT_EMPTY %d, BTA_EN %d, VC_BUSY %d, " ++ "TX_FIFO_FULL %d, RX_FIFO_NOT_EMPTY %d, ", ++ channel, ++ FLD_GET(r, 5, 5), ++ FLD_GET(r, 6, 6), ++ FLD_GET(r, 15, 15), ++ FLD_GET(r, 16, 16), ++ FLD_GET(r, 20, 20)); ++ ++ r = dsi_read_reg(DSI_TX_FIFO_VC_EMPTINESS); ++ DSSDBG("EMPTINESS %d\n", (r >> (8 * channel)) & 0xff); ++} ++ ++static int dsi_vc_enable(int channel, bool enable) ++{ ++ if (dsi.update_mode != OMAP_DSS_UPDATE_AUTO) ++ DSSDBG("dsi_vc_enable channel %d, enable %d\n", ++ channel, enable); ++ ++ enable = enable ? 1 : 0; ++ ++ REG_FLD_MOD(DSI_VC_CTRL(channel), enable, 0, 0); ++ ++ if (wait_for_bit_change(DSI_VC_CTRL(channel), 0, enable) != enable) { ++ DSSERR("Failed to set dsi_vc_enable to %d\n", enable); ++ return -EIO; ++ } ++ ++ return 0; ++} ++ ++static void dsi_vc_initial_config(int channel) ++{ ++ u32 r; ++ ++ DSSDBGF("%d", channel); ++ ++ r = dsi_read_reg(DSI_VC_CTRL(channel)); ++ ++ if (FLD_GET(r, 15, 15)) /* VC_BUSY */ ++ DSSERR("VC(%d) busy when trying to configure it!\n", ++ channel); ++ ++ r = FLD_MOD(r, 0, 1, 1); /* SOURCE, 0 = L4 */ ++ r = FLD_MOD(r, 0, 2, 2); /* BTA_SHORT_EN */ ++ r = FLD_MOD(r, 0, 3, 3); /* BTA_LONG_EN */ ++ r = FLD_MOD(r, 0, 4, 4); /* MODE, 0 = command */ ++ r = FLD_MOD(r, 1, 7, 7); /* CS_TX_EN */ ++ r = FLD_MOD(r, 1, 8, 8); /* ECC_TX_EN */ ++ r = FLD_MOD(r, 0, 9, 9); /* MODE_SPEED, high speed on/off */ ++ ++ r = FLD_MOD(r, 4, 29, 27); /* DMA_RX_REQ_NB = no dma */ ++ r = FLD_MOD(r, 4, 23, 21); /* DMA_TX_REQ_NB = no dma */ ++ ++ dsi_write_reg(DSI_VC_CTRL(channel), r); ++ ++ dsi.vc[channel].mode = DSI_VC_MODE_L4; ++} ++ ++static void dsi_vc_config_l4(int channel) ++{ ++ if (dsi.vc[channel].mode == DSI_VC_MODE_L4) ++ return; ++ ++ DSSDBGF("%d", channel); ++ ++ dsi_vc_enable(channel, 0); ++ ++ if (REG_GET(DSI_VC_CTRL(channel), 15, 15)) /* VC_BUSY */ ++ DSSERR("vc(%d) busy when trying to config for L4\n", channel); ++ ++ REG_FLD_MOD(DSI_VC_CTRL(channel), 0, 1, 1); /* SOURCE, 0 = L4 */ ++ ++ dsi_vc_enable(channel, 1); ++ ++ dsi.vc[channel].mode = DSI_VC_MODE_L4; ++} ++ ++static void dsi_vc_config_vp(int channel) ++{ ++ if (dsi.vc[channel].mode == DSI_VC_MODE_VP) ++ return; ++ ++ DSSDBGF("%d", channel); ++ ++ dsi_vc_enable(channel, 0); ++ ++ if (REG_GET(DSI_VC_CTRL(channel), 15, 15)) /* VC_BUSY */ ++ DSSERR("vc(%d) busy when trying to config for VP\n", channel); ++ ++ REG_FLD_MOD(DSI_VC_CTRL(channel), 1, 1, 1); /* SOURCE, 1 = video port */ ++ ++ dsi_vc_enable(channel, 1); ++ ++ dsi.vc[channel].mode = DSI_VC_MODE_VP; ++} ++ ++ ++static void dsi_vc_enable_hs(int channel, bool enable) ++{ ++ DSSDBG("dsi_vc_enable_hs(%d, %d)\n", channel, enable); ++ ++ dsi_vc_enable(channel, 0); ++ dsi_if_enable(0); ++ ++ REG_FLD_MOD(DSI_VC_CTRL(channel), enable, 9, 9); ++ ++ dsi_vc_enable(channel, 1); ++ dsi_if_enable(1); ++ ++ dsi_force_tx_stop_mode_io(); ++} ++ ++static void dsi_vc_flush_long_data(int channel) ++{ ++ while (REG_GET(DSI_VC_CTRL(channel), 20, 20)) { ++ u32 val; ++ val = dsi_read_reg(DSI_VC_SHORT_PACKET_HEADER(channel)); ++ DSSDBG("\t\tb1 %#02x b2 %#02x b3 %#02x b4 %#02x\n", ++ (val >> 0) & 0xff, ++ (val >> 8) & 0xff, ++ (val >> 16) & 0xff, ++ (val >> 24) & 0xff); ++ } ++} ++ ++static void dsi_show_rx_ack_with_err(u16 err) ++{ ++ DSSERR("\tACK with ERROR (%#x):\n", err); ++ if (err & (1 << 0)) ++ DSSERR("\t\tSoT Error\n"); ++ if (err & (1 << 1)) ++ DSSERR("\t\tSoT Sync Error\n"); ++ if (err & (1 << 2)) ++ DSSERR("\t\tEoT Sync Error\n"); ++ if (err & (1 << 3)) ++ DSSERR("\t\tEscape Mode Entry Command Error\n"); ++ if (err & (1 << 4)) ++ DSSERR("\t\tLP Transmit Sync Error\n"); ++ if (err & (1 << 5)) ++ DSSERR("\t\tHS Receive Timeout Error\n"); ++ if (err & (1 << 6)) ++ DSSERR("\t\tFalse Control Error\n"); ++ if (err & (1 << 7)) ++ DSSERR("\t\t(reserved7)\n"); ++ if (err & (1 << 8)) ++ DSSERR("\t\tECC Error, single-bit (corrected)\n"); ++ if (err & (1 << 9)) ++ DSSERR("\t\tECC Error, multi-bit (not corrected)\n"); ++ if (err & (1 << 10)) ++ DSSERR("\t\tChecksum Error\n"); ++ if (err & (1 << 11)) ++ DSSERR("\t\tData type not recognized\n"); ++ if (err & (1 << 12)) ++ DSSERR("\t\tInvalid VC ID\n"); ++ if (err & (1 << 13)) ++ DSSERR("\t\tInvalid Transmission Length\n"); ++ if (err & (1 << 14)) ++ DSSERR("\t\t(reserved14)\n"); ++ if (err & (1 << 15)) ++ DSSERR("\t\tDSI Protocol Violation\n"); ++} ++ ++static u16 dsi_vc_flush_receive_data(int channel) ++{ ++ /* RX_FIFO_NOT_EMPTY */ ++ while (REG_GET(DSI_VC_CTRL(channel), 20, 20)) { ++ u32 val; ++ u8 dt; ++ val = dsi_read_reg(DSI_VC_SHORT_PACKET_HEADER(channel)); ++ DSSDBG("\trawval %#08x\n", val); ++ dt = FLD_GET(val, 5, 0); ++ if (dt == DSI_DT_RX_ACK_WITH_ERR) { ++ u16 err = FLD_GET(val, 23, 8); ++ dsi_show_rx_ack_with_err(err); ++ } else if (dt == DSI_DT_RX_SHORT_READ_1) { ++ DSSDBG("\tDCS short response, 1 byte: %#x\n", ++ FLD_GET(val, 23, 8)); ++ } else if (dt == DSI_DT_RX_SHORT_READ_2) { ++ DSSDBG("\tDCS short response, 2 byte: %#x\n", ++ FLD_GET(val, 23, 8)); ++ } else if (dt == DSI_DT_RX_DCS_LONG_READ) { ++ DSSDBG("\tDCS long response, len %d\n", ++ FLD_GET(val, 23, 8)); ++ dsi_vc_flush_long_data(channel); ++ } else { ++ DSSERR("\tunknown datatype 0x%02x\n", dt); ++ } ++ } ++ return 0; ++} ++ ++static int dsi_vc_send_bta(int channel) ++{ ++ if (dsi.update_mode != OMAP_DSS_UPDATE_AUTO && ++ (dsi.debug_write || dsi.debug_read)) ++ DSSDBG("dsi_vc_send_bta %d\n", channel); ++ ++ WARN_ON(!mutex_is_locked(&dsi.bus_lock)); ++ ++ if (REG_GET(DSI_VC_CTRL(channel), 20, 20)) { /* RX_FIFO_NOT_EMPTY */ ++ DSSERR("rx fifo not empty when sending BTA, dumping data:\n"); ++ dsi_vc_flush_receive_data(channel); ++ } ++ ++ REG_FLD_MOD(DSI_VC_CTRL(channel), 1, 6, 6); /* BTA_EN */ ++ ++ return 0; ++} ++ ++int dsi_vc_send_bta_sync(int channel) ++{ ++ int r = 0; ++ u32 err; ++ ++ INIT_COMPLETION(dsi.bta_completion); ++ ++ dsi_vc_enable_bta_irq(channel); ++ ++ r = dsi_vc_send_bta(channel); ++ if (r) ++ goto err; ++ ++ if (wait_for_completion_timeout(&dsi.bta_completion, ++ msecs_to_jiffies(500)) == 0) { ++ DSSERR("Failed to receive BTA\n"); ++ r = -EIO; ++ goto err; ++ } ++ ++ err = dsi_get_errors(); ++ if (err) { ++ DSSERR("Error while sending BTA: %x\n", err); ++ r = -EIO; ++ goto err; ++ } ++err: ++ dsi_vc_disable_bta_irq(channel); ++ ++ return r; ++} ++EXPORT_SYMBOL(dsi_vc_send_bta_sync); ++ ++static inline void dsi_vc_write_long_header(int channel, u8 data_type, ++ u16 len, u8 ecc) ++{ ++ u32 val; ++ u8 data_id; ++ ++ WARN_ON(!mutex_is_locked(&dsi.bus_lock)); ++ ++ /*data_id = data_type | channel << 6; */ ++ data_id = data_type | dsi.vc[channel].dest_per << 6; ++ ++ val = FLD_VAL(data_id, 7, 0) | FLD_VAL(len, 23, 8) | ++ FLD_VAL(ecc, 31, 24); ++ ++ dsi_write_reg(DSI_VC_LONG_PACKET_HEADER(channel), val); ++} ++ ++static inline void dsi_vc_write_long_payload(int channel, ++ u8 b1, u8 b2, u8 b3, u8 b4) ++{ ++ u32 val; ++ ++ val = b4 << 24 | b3 << 16 | b2 << 8 | b1 << 0; ++ ++/* DSSDBG("\twriting %02x, %02x, %02x, %02x (%#010x)\n", ++ b1, b2, b3, b4, val); */ ++ ++ dsi_write_reg(DSI_VC_LONG_PACKET_PAYLOAD(channel), val); ++} ++ ++static int dsi_vc_send_long(int channel, u8 data_type, u8 *data, u16 len, ++ u8 ecc) ++{ ++ /*u32 val; */ ++ int i; ++ u8 *p; ++ int r = 0; ++ u8 b1, b2, b3, b4; ++ ++ if (dsi.debug_write) ++ DSSDBG("dsi_vc_send_long, %d bytes\n", len); ++ ++ /* len + header */ ++ if (dsi.vc[channel].fifo_size * 32 * 4 < len + 4) { ++ DSSERR("unable to send long packet: packet too long.\n"); ++ return -EINVAL; ++ } ++ ++ dsi_vc_config_l4(channel); ++ ++ dsi_vc_write_long_header(channel, data_type, len, ecc); ++ ++ /*dsi_vc_print_status(0); */ ++ ++ p = data; ++ for (i = 0; i < len >> 2; i++) { ++ if (dsi.debug_write) ++ DSSDBG("\tsending full packet %d\n", i); ++ /*dsi_vc_print_status(0); */ ++ ++ b1 = *p++; ++ b2 = *p++; ++ b3 = *p++; ++ b4 = *p++; ++ ++ dsi_vc_write_long_payload(channel, b1, b2, b3, b4); ++ } ++ ++ i = len % 4; ++ if (i) { ++ b1 = 0; b2 = 0; b3 = 0; ++ ++ if (dsi.debug_write) ++ DSSDBG("\tsending remainder bytes %d\n", i); ++ ++ switch (i) { ++ case 3: ++ b1 = *p++; ++ b2 = *p++; ++ b3 = *p++; ++ break; ++ case 2: ++ b1 = *p++; ++ b2 = *p++; ++ break; ++ case 1: ++ b1 = *p++; ++ break; ++ } ++ ++ dsi_vc_write_long_payload(channel, b1, b2, b3, 0); ++ } ++ ++ return r; ++} ++ ++static int dsi_vc_send_short(int channel, u8 data_type, u16 data, u8 ecc) ++{ ++ u32 r; ++ u8 data_id; ++ ++ WARN_ON(!mutex_is_locked(&dsi.bus_lock)); ++ ++ if (dsi.debug_write) ++ DSSDBG("dsi_vc_send_short(ch%d, dt %#x, b1 %#x, b2 %#x)\n", ++ channel, ++ data_type, data & 0xff, (data >> 8) & 0xff); ++ ++ dsi_vc_config_l4(channel); ++ ++ if (FLD_GET(dsi_read_reg(DSI_VC_CTRL(channel)), 16, 16)) { ++ DSSERR("ERROR FIFO FULL, aborting transfer\n"); ++ return -EINVAL; ++ } ++ ++ data_id = data_type | channel << 6; ++ ++ r = (data_id << 0) | (data << 8) | (ecc << 24); ++ ++ dsi_write_reg(DSI_VC_SHORT_PACKET_HEADER(channel), r); ++ ++ return 0; ++} ++ ++int dsi_vc_send_null(int channel) ++{ ++ u8 nullpkg[] = {0, 0, 0, 0}; ++ return dsi_vc_send_long(0, DSI_DT_NULL_PACKET, nullpkg, 4, 0); ++} ++EXPORT_SYMBOL(dsi_vc_send_null); ++ ++int dsi_vc_dcs_write_nosync(int channel, u8 *data, int len) ++{ ++ int r; ++ ++ BUG_ON(len == 0); ++ ++ if (len == 1) { ++ r = dsi_vc_send_short(channel, DSI_DT_DCS_SHORT_WRITE_0, ++ data[0], 0); ++ } else if (len == 2) { ++ r = dsi_vc_send_short(channel, DSI_DT_DCS_SHORT_WRITE_1, ++ data[0] | (data[1] << 8), 0); ++ } else { ++ /* 0x39 = DCS Long Write */ ++ r = dsi_vc_send_long(channel, DSI_DT_DCS_LONG_WRITE, ++ data, len, 0); ++ } ++ ++ return r; ++} ++EXPORT_SYMBOL(dsi_vc_dcs_write_nosync); ++ ++int dsi_vc_dcs_write(int channel, u8 *data, int len) ++{ ++ int r; ++ ++ r = dsi_vc_dcs_write_nosync(channel, data, len); ++ if (r) ++ return r; ++ ++ r = dsi_vc_send_bta_sync(channel); ++ ++ return r; ++} ++EXPORT_SYMBOL(dsi_vc_dcs_write); ++ ++int dsi_vc_dcs_read(int channel, u8 dcs_cmd, u8 *buf, int buflen) ++{ ++ u32 val; ++ u8 dt; ++ int r; ++ ++ if (dsi.debug_read) ++ DSSDBG("dsi_vc_dcs_read(ch%d, dcs_cmd %u)\n", channel, dcs_cmd); ++ ++ r = dsi_vc_send_short(channel, DSI_DT_DCS_READ, dcs_cmd, 0); ++ if (r) ++ return r; ++ ++ r = dsi_vc_send_bta_sync(channel); ++ if (r) ++ return r; ++ ++ /* RX_FIFO_NOT_EMPTY */ ++ if (REG_GET(DSI_VC_CTRL(channel), 20, 20) == 0) { ++ DSSERR("RX fifo empty when trying to read.\n"); ++ return -EIO; ++ } ++ ++ val = dsi_read_reg(DSI_VC_SHORT_PACKET_HEADER(channel)); ++ if (dsi.debug_read) ++ DSSDBG("\theader: %08x\n", val); ++ dt = FLD_GET(val, 5, 0); ++ if (dt == DSI_DT_RX_ACK_WITH_ERR) { ++ u16 err = FLD_GET(val, 23, 8); ++ dsi_show_rx_ack_with_err(err); ++ return -EIO; ++ ++ } else if (dt == DSI_DT_RX_SHORT_READ_1) { ++ u8 data = FLD_GET(val, 15, 8); ++ if (dsi.debug_read) ++ DSSDBG("\tDCS short response, 1 byte: %02x\n", data); ++ ++ if (buflen < 1) ++ return -EIO; ++ ++ buf[0] = data; ++ ++ return 1; ++ } else if (dt == DSI_DT_RX_SHORT_READ_2) { ++ u16 data = FLD_GET(val, 23, 8); ++ if (dsi.debug_read) ++ DSSDBG("\tDCS short response, 2 byte: %04x\n", data); ++ ++ if (buflen < 2) ++ return -EIO; ++ ++ buf[0] = data & 0xff; ++ buf[1] = (data >> 8) & 0xff; ++ ++ return 2; ++ } else if (dt == DSI_DT_RX_DCS_LONG_READ) { ++ int w; ++ int len = FLD_GET(val, 23, 8); ++ if (dsi.debug_read) ++ DSSDBG("\tDCS long response, len %d\n", len); ++ ++ if (len > buflen) ++ return -EIO; ++ ++ /* two byte checksum ends the packet, not included in len */ ++ for (w = 0; w < len + 2;) { ++ int b; ++ val = dsi_read_reg(DSI_VC_SHORT_PACKET_HEADER(channel)); ++ if (dsi.debug_read) ++ DSSDBG("\t\t%02x %02x %02x %02x\n", ++ (val >> 0) & 0xff, ++ (val >> 8) & 0xff, ++ (val >> 16) & 0xff, ++ (val >> 24) & 0xff); ++ ++ for (b = 0; b < 4; ++b) { ++ if (w < len) ++ buf[w] = (val >> (b * 8)) & 0xff; ++ /* we discard the 2 byte checksum */ ++ ++w; ++ } ++ } ++ ++ return len; ++ ++ } else { ++ DSSERR("\tunknown datatype 0x%02x\n", dt); ++ return -EIO; ++ } ++} ++EXPORT_SYMBOL(dsi_vc_dcs_read); ++ ++ ++int dsi_vc_set_max_rx_packet_size(int channel, u16 len) ++{ ++ return dsi_vc_send_short(channel, DSI_DT_SET_MAX_RET_PKG_SIZE, ++ len, 0); ++} ++EXPORT_SYMBOL(dsi_vc_set_max_rx_packet_size); ++ ++ ++static int dsi_set_lp_rx_timeout(int ns, int x4, int x16) ++{ ++ u32 r; ++ unsigned long fck; ++ int ticks; ++ ++ /* ticks in DSI_FCK */ ++ ++ fck = dsi_fclk_rate(); ++ ticks = (fck / 1000 / 1000) * ns / 1000; ++ ++ if (ticks > 0x1fff) { ++ DSSERR("LP_TX_TO too high\n"); ++ return -EINVAL; ++ } ++ ++ r = dsi_read_reg(DSI_TIMING2); ++ r = FLD_MOD(r, 1, 15, 15); /* LP_RX_TO */ ++ r = FLD_MOD(r, x16, 14, 14); /* LP_RX_TO_X16 */ ++ r = FLD_MOD(r, x4, 13, 13); /* LP_RX_TO_X4 */ ++ r = FLD_MOD(r, ticks, 12, 0); /* LP_RX_COUNTER */ ++ dsi_write_reg(DSI_TIMING2, r); ++ ++ DSSDBG("LP_RX_TO %ld ns (%#x ticks)\n", ++ (ticks * (x16 ? 16 : 1) * (x4 ? 4 : 1) * 1000) / ++ (fck / 1000 / 1000), ++ ticks); ++ ++ return 0; ++} ++ ++static int dsi_set_ta_timeout(int ns, int x8, int x16) ++{ ++ u32 r; ++ unsigned long fck; ++ int ticks; ++ ++ /* ticks in DSI_FCK */ ++ ++ fck = dsi_fclk_rate(); ++ ticks = (fck / 1000 / 1000) * ns / 1000; ++ ++ if (ticks > 0x1fff) { ++ DSSERR("TA_TO too high\n"); ++ return -EINVAL; ++ } ++ ++ r = dsi_read_reg(DSI_TIMING1); ++ r = FLD_MOD(r, 1, 31, 31); /* TA_TO */ ++ r = FLD_MOD(r, x16, 30, 30); /* TA_TO_X16 */ ++ r = FLD_MOD(r, x8, 29, 29); /* TA_TO_X8 */ ++ r = FLD_MOD(r, ticks, 28, 16); /* TA_TO_COUNTER */ ++ dsi_write_reg(DSI_TIMING1, r); ++ ++ DSSDBG("TA_TO %ld ns (%#x ticks)\n", ++ (ticks * (x16 ? 16 : 1) * (x8 ? 8 : 1) * 1000) / ++ (fck / 1000 / 1000), ++ ticks); ++ ++ return 0; ++} ++ ++static int dsi_set_stop_state_counter(int ns, int x4, int x16) ++{ ++ u32 r; ++ unsigned long fck; ++ int ticks; ++ ++ /* ticks in DSI_FCK */ ++ ++ fck = dsi_fclk_rate(); ++ ticks = (fck / 1000 / 1000) * ns / 1000; ++ ++ if (ticks > 0x1fff) { ++ DSSERR("STOP_STATE_COUNTER_IO too high\n"); ++ return -EINVAL; ++ } ++ ++ r = dsi_read_reg(DSI_TIMING1); ++ r = FLD_MOD(r, 1, 15, 15); /* FORCE_TX_STOP_MODE_IO */ ++ r = FLD_MOD(r, x16, 14, 14); /* STOP_STATE_X16_IO */ ++ r = FLD_MOD(r, x4, 13, 13); /* STOP_STATE_X4_IO */ ++ r = FLD_MOD(r, ticks, 12, 0); /* STOP_STATE_COUNTER_IO */ ++ dsi_write_reg(DSI_TIMING1, r); ++ ++ DSSDBG("STOP_STATE_COUNTER %ld ns (%#x ticks)\n", ++ (ticks * (x16 ? 16 : 1) * (x4 ? 4 : 1) * 1000) / ++ (fck / 1000 / 1000), ++ ticks); ++ ++ return 0; ++} ++ ++static int dsi_set_hs_tx_timeout(int ns, int x4, int x16) ++{ ++ u32 r; ++ unsigned long fck; ++ int ticks; ++ ++ /* ticks in TxByteClkHS */ ++ ++ fck = dsi.ddr_clk / 4; ++ ticks = (fck / 1000 / 1000) * ns / 1000; ++ ++ if (ticks > 0x1fff) { ++ DSSERR("HS_TX_TO too high\n"); ++ return -EINVAL; ++ } ++ ++ r = dsi_read_reg(DSI_TIMING2); ++ r = FLD_MOD(r, 1, 31, 31); /* HS_TX_TO */ ++ r = FLD_MOD(r, x16, 30, 30); /* HS_TX_TO_X16 */ ++ r = FLD_MOD(r, x4, 29, 29); /* HS_TX_TO_X8 (4 really) */ ++ r = FLD_MOD(r, ticks, 28, 16); /* HS_TX_TO_COUNTER */ ++ dsi_write_reg(DSI_TIMING2, r); ++ ++ DSSDBG("HS_TX_TO %ld ns (%#x ticks)\n", ++ (ticks * (x16 ? 16 : 1) * (x4 ? 4 : 1) * 1000) / ++ (fck / 1000 / 1000), ++ ticks); ++ ++ return 0; ++} ++static int dsi_proto_config(struct omap_dss_device *dssdev) ++{ ++ u32 r; ++ int buswidth = 0; ++ int div; ++ ++ dsi_config_tx_fifo(DSI_FIFO_SIZE_128, ++ DSI_FIFO_SIZE_0, ++ DSI_FIFO_SIZE_0, ++ DSI_FIFO_SIZE_0); ++ ++ dsi_config_rx_fifo(DSI_FIFO_SIZE_128, ++ DSI_FIFO_SIZE_0, ++ DSI_FIFO_SIZE_0, ++ DSI_FIFO_SIZE_0); ++ ++ /* XXX what values for the timeouts? */ ++ dsi_set_stop_state_counter(1000, 0, 0); ++ ++ dsi_set_ta_timeout(50000, 1, 1); ++ ++ /* 3000ns * 16 */ ++ dsi_set_lp_rx_timeout(3000, 0, 1); ++ ++ /* 10000ns * 4 */ ++ dsi_set_hs_tx_timeout(10000, 1, 0); ++ ++ switch (dssdev->ctrl.pixel_size) { ++ case 16: ++ buswidth = 0; ++ break; ++ case 18: ++ buswidth = 1; ++ break; ++ case 24: ++ buswidth = 2; ++ break; ++ default: ++ BUG(); ++ } ++ ++ r = dsi_read_reg(DSI_CTRL); ++ r = FLD_MOD(r, 1, 1, 1); /* CS_RX_EN */ ++ r = FLD_MOD(r, 1, 2, 2); /* ECC_RX_EN */ ++ r = FLD_MOD(r, 1, 3, 3); /* TX_FIFO_ARBITRATION */ ++ ++ div = dispc_lclk_rate() / dispc_pclk_rate(); ++ r = FLD_MOD(r, div == 2 ? 0 : 1, 4, 4); /* VP_CLK_RATIO */ ++ r = FLD_MOD(r, buswidth, 7, 6); /* VP_DATA_BUS_WIDTH */ ++ r = FLD_MOD(r, 0, 8, 8); /* VP_CLK_POL */ ++ r = FLD_MOD(r, 2, 13, 12); /* LINE_BUFFER, 2 lines */ ++ r = FLD_MOD(r, 1, 14, 14); /* TRIGGER_RESET_MODE */ ++ r = FLD_MOD(r, 1, 19, 19); /* EOT_ENABLE */ ++ r = FLD_MOD(r, 1, 24, 24); /* DCS_CMD_ENABLE */ ++ r = FLD_MOD(r, 0, 25, 25); /* DCS_CMD_CODE, 1=start, 0=continue */ ++ ++ dsi_write_reg(DSI_CTRL, r); ++ ++ dsi_vc_initial_config(0); ++ ++ /* set all vc targets to peripheral 0 */ ++ dsi.vc[0].dest_per = 0; ++ dsi.vc[1].dest_per = 0; ++ dsi.vc[2].dest_per = 0; ++ dsi.vc[3].dest_per = 0; ++ ++ return 0; ++} ++ ++static void dsi_proto_timings(struct omap_dss_device *dssdev) ++{ ++ unsigned tlpx, tclk_zero, tclk_prepare, tclk_trail; ++ unsigned tclk_pre, tclk_post; ++ unsigned ths_prepare, ths_prepare_ths_zero, ths_zero; ++ unsigned ths_trail, ths_exit; ++ unsigned ddr_clk_pre, ddr_clk_post; ++ unsigned enter_hs_mode_lat, exit_hs_mode_lat; ++ unsigned ths_eot; ++ u32 r; ++ ++ r = dsi_read_reg(DSI_DSIPHY_CFG0); ++ ths_prepare = FLD_GET(r, 31, 24); ++ ths_prepare_ths_zero = FLD_GET(r, 23, 16); ++ ths_zero = ths_prepare_ths_zero - ths_prepare; ++ ths_trail = FLD_GET(r, 15, 8); ++ ths_exit = FLD_GET(r, 7, 0); ++ ++ r = dsi_read_reg(DSI_DSIPHY_CFG1); ++ tlpx = FLD_GET(r, 22, 16) * 2; ++ tclk_trail = FLD_GET(r, 15, 8); ++ tclk_zero = FLD_GET(r, 7, 0); ++ ++ r = dsi_read_reg(DSI_DSIPHY_CFG2); ++ tclk_prepare = FLD_GET(r, 7, 0); ++ ++ /* min 8*UI */ ++ tclk_pre = 20; ++ /* min 60ns + 52*UI */ ++ tclk_post = ns2ddr(60) + 26; ++ ++ /* ths_eot is 2 for 2 datalanes and 4 for 1 datalane */ ++ if (dssdev->phy.dsi.data1_lane != 0 && ++ dssdev->phy.dsi.data2_lane != 0) ++ ths_eot = 2; ++ else ++ ths_eot = 4; ++ ++ ddr_clk_pre = DIV_ROUND_UP(tclk_pre + tlpx + tclk_zero + tclk_prepare, ++ 4); ++ ddr_clk_post = DIV_ROUND_UP(tclk_post + tclk_trail, 4) + ths_eot; ++ ++ BUG_ON(ddr_clk_pre == 0 || ddr_clk_pre > 255); ++ BUG_ON(ddr_clk_post == 0 || ddr_clk_post > 255); ++ ++ r = dsi_read_reg(DSI_CLK_TIMING); ++ r = FLD_MOD(r, ddr_clk_pre, 15, 8); ++ r = FLD_MOD(r, ddr_clk_post, 7, 0); ++ dsi_write_reg(DSI_CLK_TIMING, r); ++ ++ DSSDBG("ddr_clk_pre %u, ddr_clk_post %u\n", ++ ddr_clk_pre, ++ ddr_clk_post); ++ ++ enter_hs_mode_lat = 1 + DIV_ROUND_UP(tlpx, 4) + ++ DIV_ROUND_UP(ths_prepare, 4) + ++ DIV_ROUND_UP(ths_zero + 3, 4); ++ ++ exit_hs_mode_lat = DIV_ROUND_UP(ths_trail + ths_exit, 4) + 1 + ths_eot; ++ ++ r = FLD_VAL(enter_hs_mode_lat, 31, 16) | ++ FLD_VAL(exit_hs_mode_lat, 15, 0); ++ dsi_write_reg(DSI_VM_TIMING7, r); ++ ++ DSSDBG("enter_hs_mode_lat %u, exit_hs_mode_lat %u\n", ++ enter_hs_mode_lat, exit_hs_mode_lat); ++} ++ ++ ++#define DSI_DECL_VARS \ ++ int __dsi_cb = 0; u32 __dsi_cv = 0; ++ ++#define DSI_FLUSH(ch) \ ++ if (__dsi_cb > 0) { \ ++ /*DSSDBG("sending long packet %#010x\n", __dsi_cv);*/ \ ++ dsi_write_reg(DSI_VC_LONG_PACKET_PAYLOAD(ch), __dsi_cv); \ ++ __dsi_cb = __dsi_cv = 0; \ ++ } ++ ++#define DSI_PUSH(ch, data) \ ++ do { \ ++ __dsi_cv |= (data) << (__dsi_cb * 8); \ ++ /*DSSDBG("cv = %#010x, cb = %d\n", __dsi_cv, __dsi_cb);*/ \ ++ if (++__dsi_cb > 3) \ ++ DSI_FLUSH(ch); \ ++ } while (0) ++ ++static int dsi_update_screen_l4(struct omap_dss_device *dssdev, ++ int x, int y, int w, int h) ++{ ++ /* Note: supports only 24bit colors in 32bit container */ ++ int first = 1; ++ int fifo_stalls = 0; ++ int max_dsi_packet_size; ++ int max_data_per_packet; ++ int max_pixels_per_packet; ++ int pixels_left; ++ int bytespp = dssdev->ctrl.pixel_size / 8; ++ int scr_width; ++ u32 __iomem *data; ++ int start_offset; ++ int horiz_inc; ++ int current_x; ++ struct omap_overlay *ovl; ++ ++ debug_irq = 0; ++ ++ DSSDBG("dsi_update_screen_l4 (%d,%d %dx%d)\n", ++ x, y, w, h); ++ ++ ovl = dssdev->manager->overlays[0]; ++ ++ if (ovl->info.color_mode != OMAP_DSS_COLOR_RGB24U) ++ return -EINVAL; ++ ++ if (dssdev->ctrl.pixel_size != 24) ++ return -EINVAL; ++ ++ scr_width = ovl->info.screen_width; ++ data = ovl->info.vaddr; ++ ++ start_offset = scr_width * y + x; ++ horiz_inc = scr_width - w; ++ current_x = x; ++ ++ /* We need header(4) + DCSCMD(1) + pixels(numpix*bytespp) bytes ++ * in fifo */ ++ ++ /* When using CPU, max long packet size is TX buffer size */ ++ max_dsi_packet_size = dsi.vc[0].fifo_size * 32 * 4; ++ ++ /* we seem to get better perf if we divide the tx fifo to half, ++ and while the other half is being sent, we fill the other half ++ max_dsi_packet_size /= 2; */ ++ ++ max_data_per_packet = max_dsi_packet_size - 4 - 1; ++ ++ max_pixels_per_packet = max_data_per_packet / bytespp; ++ ++ DSSDBG("max_pixels_per_packet %d\n", max_pixels_per_packet); ++ ++ pixels_left = w * h; ++ ++ DSSDBG("total pixels %d\n", pixels_left); ++ ++ data += start_offset; ++ ++ while (pixels_left > 0) { ++ /* 0x2c = write_memory_start */ ++ /* 0x3c = write_memory_continue */ ++ u8 dcs_cmd = first ? 0x2c : 0x3c; ++ int pixels; ++ DSI_DECL_VARS; ++ first = 0; ++ ++#if 1 ++ /* using fifo not empty */ ++ /* TX_FIFO_NOT_EMPTY */ ++ while (FLD_GET(dsi_read_reg(DSI_VC_CTRL(0)), 5, 5)) { ++ udelay(1); ++ fifo_stalls++; ++ if (fifo_stalls > 0xfffff) { ++ DSSERR("fifo stalls overflow, pixels left %d\n", ++ pixels_left); ++ dsi_if_enable(0); ++ return -EIO; ++ } ++ } ++#elif 1 ++ /* using fifo emptiness */ ++ while ((REG_GET(DSI_TX_FIFO_VC_EMPTINESS, 7, 0)+1)*4 < ++ max_dsi_packet_size) { ++ fifo_stalls++; ++ if (fifo_stalls > 0xfffff) { ++ DSSERR("fifo stalls overflow, pixels left %d\n", ++ pixels_left); ++ dsi_if_enable(0); ++ return -EIO; ++ } ++ } ++#else ++ while ((REG_GET(DSI_TX_FIFO_VC_EMPTINESS, 7, 0)+1)*4 == 0) { ++ fifo_stalls++; ++ if (fifo_stalls > 0xfffff) { ++ DSSERR("fifo stalls overflow, pixels left %d\n", ++ pixels_left); ++ dsi_if_enable(0); ++ return -EIO; ++ } ++ } ++#endif ++ pixels = min(max_pixels_per_packet, pixels_left); ++ ++ pixels_left -= pixels; ++ ++ dsi_vc_write_long_header(0, DSI_DT_DCS_LONG_WRITE, ++ 1 + pixels * bytespp, 0); ++ ++ DSI_PUSH(0, dcs_cmd); ++ ++ while (pixels-- > 0) { ++ u32 pix = __raw_readl(data++); ++ ++ DSI_PUSH(0, (pix >> 16) & 0xff); ++ DSI_PUSH(0, (pix >> 8) & 0xff); ++ DSI_PUSH(0, (pix >> 0) & 0xff); ++ ++ current_x++; ++ if (current_x == x+w) { ++ current_x = x; ++ data += horiz_inc; ++ } ++ } ++ ++ DSI_FLUSH(0); ++ } ++ ++ return 0; ++} ++ ++static void dsi_update_screen_dispc(struct omap_dss_device *dssdev, ++ u16 x, u16 y, u16 w, u16 h) ++{ ++ int bytespp = dssdev->ctrl.pixel_size / 8; ++ int len; ++ int total_len; ++ int packet_payload; ++ int packet_len; ++ u32 l; ++ bool use_te_trigger; ++ const int channel = 0; ++ ++ use_te_trigger = dsi.te_enabled && !dsi.use_ext_te; ++ ++ if (dsi.update_mode != OMAP_DSS_UPDATE_AUTO) ++ DSSDBG("dsi_update_screen_dispc(%d,%d %dx%d)\n", ++ x, y, w, h); ++ ++ len = w * h * bytespp; ++ ++ /* XXX: one packet could be longer, I think? Line buffer is ++ * 1024 x 24bits, but we have to put DCS cmd there also. ++ * 1023 * 3 should work, but causes strange color effects. */ ++ packet_payload = min(w, (u16)1020) * bytespp; ++ ++ packet_len = packet_payload + 1; /* 1 byte for DCS cmd */ ++ total_len = (len / packet_payload) * packet_len; ++ ++ if (len % packet_payload) ++ total_len += (len % packet_payload) + 1; ++ ++ if (0) ++ dsi_vc_print_status(1); ++ ++ l = FLD_VAL(total_len, 23, 0); /* TE_SIZE */ ++ dsi_write_reg(DSI_VC_TE(channel), l); ++ ++ dsi_vc_write_long_header(channel, DSI_DT_DCS_LONG_WRITE, packet_len, 0); ++ ++ if (use_te_trigger) ++ l = FLD_MOD(l, 1, 30, 30); /* TE_EN */ ++ else ++ l = FLD_MOD(l, 1, 31, 31); /* TE_START */ ++ dsi_write_reg(DSI_VC_TE(channel), l); ++ ++ /* We put SIDLEMODE to no-idle for the duration of the transfer, ++ * because DSS interrupts are not capable of waking up the CPU and the ++ * framedone interrupt could be delayed for quite a long time. I think ++ * the same goes for any DSS interrupts, but for some reason I have not ++ * seen the problem anywhere else than here. ++ */ ++ dispc_disable_sidle(); ++ ++ dss_start_update(dssdev); ++ ++ if (use_te_trigger) { ++ /* disable LP_RX_TO, so that we can receive TE. Time to wait ++ * for TE is longer than the timer allows */ ++ REG_FLD_MOD(DSI_TIMING2, 0, 15, 15); /* LP_RX_TO */ ++ ++ dsi_vc_send_bta(channel); ++ } ++} ++ ++static void dsi_framedone_irq_callback(void *data, u32 mask) ++{ ++ /* Note: We get FRAMEDONE when DISPC has finished sending pixels and ++ * turns itself off. However, DSI still has the pixels in its buffers, ++ * and is sending the data. ++ */ ++ ++ /* SIDLEMODE back to smart-idle */ ++ dispc_enable_sidle(); ++ ++ dsi.framedone_received = true; ++ wake_up(&dsi.waitqueue); ++} ++ ++static void dsi_set_update_region(struct omap_dss_device *dssdev, ++ u16 x, u16 y, u16 w, u16 h) ++{ ++ spin_lock(&dsi.update_lock); ++ if (dsi.update_region.dirty) { ++ dsi.update_region.x = min(x, dsi.update_region.x); ++ dsi.update_region.y = min(y, dsi.update_region.y); ++ dsi.update_region.w = max(w, dsi.update_region.w); ++ dsi.update_region.h = max(h, dsi.update_region.h); ++ } else { ++ dsi.update_region.x = x; ++ dsi.update_region.y = y; ++ dsi.update_region.w = w; ++ dsi.update_region.h = h; ++ } ++ ++ dsi.update_region.device = dssdev; ++ dsi.update_region.dirty = true; ++ ++ spin_unlock(&dsi.update_lock); ++ ++} ++ ++static void dsi_start_auto_update(struct omap_dss_device *dssdev) ++{ ++ u16 w, h; ++ int i; ++ ++ DSSDBG("starting auto update\n"); ++ ++ /* In automatic mode the overlay settings are applied like on DPI/SDI. ++ * Mark the overlays dirty, so that we get the overlays configured, as ++ * manual mode has left them in bad shape after config partia planes */ ++ for (i = 0; i < omap_dss_get_num_overlays(); ++i) { ++ struct omap_overlay *ovl; ++ ovl = omap_dss_get_overlay(i); ++ if (ovl->manager == dssdev->manager) ++ ovl->info_dirty = true; ++ } ++ dssdev->manager->apply(dssdev->manager); ++ ++ dssdev->get_resolution(dssdev, &w, &h); ++ ++ dsi_set_update_region(dssdev, 0, 0, w, h); ++ ++ dsi_perf_mark_start_auto(); ++ ++ wake_up(&dsi.waitqueue); ++} ++ ++static int dsi_set_te(struct omap_dss_device *dssdev, bool enable) ++{ ++ int r; ++ r = dssdev->driver->enable_te(dssdev, enable); ++ /* XXX for some reason, DSI TE breaks if we don't wait here. ++ * Panel bug? Needs more studying */ ++ msleep(100); ++ return r; ++} ++ ++static void dsi_handle_framedone(void) ++{ ++ int r; ++ const int channel = 0; ++ bool use_te_trigger; ++ ++ use_te_trigger = dsi.te_enabled && !dsi.use_ext_te; ++ ++ if (dsi.update_mode != OMAP_DSS_UPDATE_AUTO) ++ DSSDBG("FRAMEDONE\n"); ++ ++ if (use_te_trigger) { ++ /* enable LP_RX_TO again after the TE */ ++ REG_FLD_MOD(DSI_TIMING2, 1, 15, 15); /* LP_RX_TO */ ++ } ++ ++ /* Send BTA after the frame. We need this for the TE to work, as TE ++ * trigger is only sent for BTAs without preceding packet. Thus we need ++ * to BTA after the pixel packets so that next BTA will cause TE ++ * trigger. ++ * ++ * This is not needed when TE is not in use, but we do it anyway to ++ * make sure that the transfer has been completed. It would be more ++ * optimal, but more complex, to wait only just before starting next ++ * transfer. */ ++ r = dsi_vc_send_bta_sync(channel); ++ if (r) ++ DSSERR("BTA after framedone failed\n"); ++ ++#ifdef CONFIG_OMAP2_DSS_FAKE_VSYNC ++ dispc_fake_vsync_irq(); ++#endif ++} ++ ++static int dsi_update_thread(void *data) ++{ ++ unsigned long timeout; ++ struct omap_dss_device *device; ++ u16 x, y, w, h; ++ ++ while (1) { ++ bool sched; ++ ++ wait_event_interruptible(dsi.waitqueue, ++ dsi.update_mode == OMAP_DSS_UPDATE_AUTO || ++ (dsi.update_mode == OMAP_DSS_UPDATE_MANUAL && ++ dsi.update_region.dirty == true) || ++ kthread_should_stop()); ++ ++ if (kthread_should_stop()) ++ break; ++ ++ dsi_bus_lock(); ++ ++ if (dsi.update_mode == OMAP_DSS_UPDATE_DISABLED || ++ kthread_should_stop()) { ++ dsi_bus_unlock(); ++ break; ++ } ++ ++ dsi_perf_mark_setup(); ++ ++ if (dsi.update_region.dirty) { ++ spin_lock(&dsi.update_lock); ++ dsi.active_update_region = dsi.update_region; ++ dsi.update_region.dirty = false; ++ spin_unlock(&dsi.update_lock); ++ } ++ ++ device = dsi.active_update_region.device; ++ x = dsi.active_update_region.x; ++ y = dsi.active_update_region.y; ++ w = dsi.active_update_region.w; ++ h = dsi.active_update_region.h; ++ ++ if (device->manager->caps & OMAP_DSS_OVL_MGR_CAP_DISPC) { ++ ++ if (dsi.update_mode == OMAP_DSS_UPDATE_MANUAL) { ++ dss_setup_partial_planes(device, ++ &x, &y, &w, &h); ++#if 1 ++ /* XXX there seems to be a bug in this driver ++ * or OMAP hardware. Some updates with certain ++ * widths and x coordinates fail. These widths ++ * are always odd, so "fix" it here for now */ ++ if (w & 1) { ++ u16 dw, dh; ++ device->get_resolution(device, ++ &dw, &dh); ++ if (x + w == dw) ++ x &= ~1; ++ ++w; ++ ++ dss_setup_partial_planes(device, ++ &x, &y, &w, &h); ++ } ++#endif ++ } ++ ++ dispc_set_lcd_size(w, h); ++ } ++ ++ if (dsi.active_update_region.dirty) { ++ dsi.active_update_region.dirty = false; ++ /* XXX TODO we don't need to send the coords, if they ++ * are the same that are already programmed to the ++ * panel. That should speed up manual update a bit */ ++ device->driver->setup_update(device, x, y, w, h); ++ } ++ ++ dsi_perf_mark_start(); ++ ++ if (device->manager->caps & OMAP_DSS_OVL_MGR_CAP_DISPC) { ++ dsi_vc_config_vp(0); ++ ++ if (dsi.te_enabled && dsi.use_ext_te) ++ device->driver->wait_for_te(device); ++ ++ dsi.framedone_received = false; ++ ++ dsi_update_screen_dispc(device, x, y, w, h); ++ ++ /* wait for framedone */ ++ timeout = msecs_to_jiffies(1000); ++ timeout = wait_event_timeout(dsi.waitqueue, ++ dsi.framedone_received == true, ++ timeout); ++ ++ if (timeout == 0) { ++ DSSERR("framedone timeout\n"); ++ DSSERR("failed update %d,%d %dx%d\n", ++ x, y, w, h); ++ ++ dispc_enable_sidle(); ++ dispc_enable_lcd_out(0); ++ } else { ++ dsi_handle_framedone(); ++ dsi_perf_show("DISPC"); ++ } ++ } else { ++ dsi_update_screen_l4(device, x, y, w, h); ++ dsi_perf_show("L4"); ++ } ++ ++ sched = atomic_read(&dsi.bus_lock.count) < 0; ++ ++ complete_all(&dsi.update_completion); ++ ++ dsi_bus_unlock(); ++ ++ /* XXX We need to give others chance to get the bus lock. Is ++ * there a better way for this? */ ++ if (dsi.update_mode == OMAP_DSS_UPDATE_AUTO && sched) ++ schedule_timeout_interruptible(1); ++ } ++ ++ DSSDBG("update thread exiting\n"); ++ ++ return 0; ++} ++ ++ ++ ++/* Display funcs */ ++ ++static int dsi_display_init_dispc(struct omap_dss_device *dssdev) ++{ ++ int r; ++ ++ r = omap_dispc_register_isr(dsi_framedone_irq_callback, NULL, ++ DISPC_IRQ_FRAMEDONE); ++ if (r) { ++ DSSERR("can't get FRAMEDONE irq\n"); ++ return r; ++ } ++ ++ dispc_set_lcd_display_type(OMAP_DSS_LCD_DISPLAY_TFT); ++ ++ dispc_set_parallel_interface_mode(OMAP_DSS_PARALLELMODE_DSI); ++ dispc_enable_fifohandcheck(1); ++ ++ dispc_set_tft_data_lines(dssdev->ctrl.pixel_size); ++ ++ { ++ struct omap_video_timings timings = { ++ .hsw = 1, ++ .hfp = 1, ++ .hbp = 1, ++ .vsw = 1, ++ .vfp = 0, ++ .vbp = 0, ++ }; ++ ++ dispc_set_lcd_timings(&timings); ++ } ++ ++ return 0; ++} ++ ++static void dsi_display_uninit_dispc(struct omap_dss_device *dssdev) ++{ ++ omap_dispc_unregister_isr(dsi_framedone_irq_callback, NULL, ++ DISPC_IRQ_FRAMEDONE); ++} ++ ++static int dsi_display_init_dsi(struct omap_dss_device *dssdev) ++{ ++ struct dsi_clock_info cinfo; ++ int r; ++ ++ _dsi_print_reset_status(); ++ ++ r = dsi_pll_init(1, 0); ++ if (r) ++ goto err0; ++ ++ r = dsi_pll_calc_ddrfreq(dssdev->phy.dsi.ddr_clk_hz, &cinfo); ++ if (r) ++ goto err1; ++ ++ r = dsi_pll_program(&cinfo); ++ if (r) ++ goto err1; ++ ++ DSSDBG("PLL OK\n"); ++ ++ r = dsi_complexio_init(dssdev); ++ if (r) ++ goto err1; ++ ++ _dsi_print_reset_status(); ++ ++ dsi_proto_timings(dssdev); ++ dsi_set_lp_clk_divisor(dssdev); ++ ++ if (1) ++ _dsi_print_reset_status(); ++ ++ r = dsi_proto_config(dssdev); ++ if (r) ++ goto err2; ++ ++ /* enable interface */ ++ dsi_vc_enable(0, 1); ++ dsi_if_enable(1); ++ dsi_force_tx_stop_mode_io(); ++ ++ if (dssdev->driver->enable) { ++ r = dssdev->driver->enable(dssdev); ++ if (r) ++ goto err3; ++ } ++ ++ /* enable high-speed after initial config */ ++ dsi_vc_enable_hs(0, 1); ++ ++ return 0; ++err3: ++ dsi_if_enable(0); ++err2: ++ dsi_complexio_uninit(); ++err1: ++ dsi_pll_uninit(); ++err0: ++ return r; ++} ++ ++static void dsi_display_uninit_dsi(struct omap_dss_device *dssdev) ++{ ++ if (dssdev->driver->disable) ++ dssdev->driver->disable(dssdev); ++ ++ dsi_complexio_uninit(); ++ dsi_pll_uninit(); ++} ++ ++static int dsi_core_init(void) ++{ ++ /* Autoidle */ ++ REG_FLD_MOD(DSI_SYSCONFIG, 1, 0, 0); ++ ++ /* ENWAKEUP */ ++ REG_FLD_MOD(DSI_SYSCONFIG, 1, 2, 2); ++ ++ /* SIDLEMODE smart-idle */ ++ REG_FLD_MOD(DSI_SYSCONFIG, 2, 4, 3); ++ ++ _dsi_initialize_irq(); ++ ++ return 0; ++} ++ ++static int dsi_display_enable(struct omap_dss_device *dssdev) ++{ ++ int r = 0; ++ ++ DSSDBG("dsi_display_enable\n"); ++ ++ mutex_lock(&dsi.lock); ++ dsi_bus_lock(); ++ ++ r = omap_dss_start_device(dssdev); ++ if (r) { ++ DSSERR("failed to start device\n"); ++ goto err0; ++ } ++ ++ if (dssdev->state != OMAP_DSS_DISPLAY_DISABLED) { ++ DSSERR("dssdev already enabled\n"); ++ r = -EINVAL; ++ goto err1; ++ } ++ ++ enable_clocks(1); ++ dsi_enable_pll_clock(1); ++ ++ r = _dsi_reset(); ++ if (r) ++ goto err2; ++ ++ dsi_core_init(); ++ ++ r = dsi_display_init_dispc(dssdev); ++ if (r) ++ goto err2; ++ ++ r = dsi_display_init_dsi(dssdev); ++ if (r) ++ goto err3; ++ ++ dssdev->state = OMAP_DSS_DISPLAY_ACTIVE; ++ ++ dsi.use_ext_te = dssdev->phy.dsi.ext_te; ++ r = dsi_set_te(dssdev, dsi.te_enabled); ++ if (r) ++ goto err3; ++ ++ dsi.update_mode = dsi.user_update_mode; ++ if (dsi.update_mode == OMAP_DSS_UPDATE_AUTO) ++ dsi_start_auto_update(dssdev); ++ ++ dsi_bus_unlock(); ++ mutex_unlock(&dsi.lock); ++ ++ return 0; ++ ++err3: ++ dsi_display_uninit_dispc(dssdev); ++err2: ++ enable_clocks(0); ++ dsi_enable_pll_clock(0); ++err1: ++ omap_dss_stop_device(dssdev); ++err0: ++ dsi_bus_unlock(); ++ mutex_unlock(&dsi.lock); ++ DSSDBG("dsi_display_enable FAILED\n"); ++ return r; ++} ++ ++static void dsi_display_disable(struct omap_dss_device *dssdev) ++{ ++ DSSDBG("dsi_display_disable\n"); ++ ++ mutex_lock(&dsi.lock); ++ dsi_bus_lock(); ++ ++ if (dssdev->state == OMAP_DSS_DISPLAY_DISABLED || ++ dssdev->state == OMAP_DSS_DISPLAY_SUSPENDED) ++ goto end; ++ ++ dsi.update_mode = OMAP_DSS_UPDATE_DISABLED; ++ dssdev->state = OMAP_DSS_DISPLAY_DISABLED; ++ ++ dsi_display_uninit_dispc(dssdev); ++ ++ dsi_display_uninit_dsi(dssdev); ++ ++ enable_clocks(0); ++ dsi_enable_pll_clock(0); ++ ++ omap_dss_stop_device(dssdev); ++end: ++ dsi_bus_unlock(); ++ mutex_unlock(&dsi.lock); ++} ++ ++static int dsi_display_suspend(struct omap_dss_device *dssdev) ++{ ++ DSSDBG("dsi_display_suspend\n"); ++ ++ mutex_lock(&dsi.lock); ++ dsi_bus_lock(); ++ ++ if (dssdev->state == OMAP_DSS_DISPLAY_DISABLED || ++ dssdev->state == OMAP_DSS_DISPLAY_SUSPENDED) ++ goto end; ++ ++ dsi.update_mode = OMAP_DSS_UPDATE_DISABLED; ++ dssdev->state = OMAP_DSS_DISPLAY_SUSPENDED; ++ ++ dsi_display_uninit_dispc(dssdev); ++ ++ dsi_display_uninit_dsi(dssdev); ++ ++ enable_clocks(0); ++ dsi_enable_pll_clock(0); ++end: ++ dsi_bus_unlock(); ++ mutex_unlock(&dsi.lock); ++ ++ return 0; ++} ++ ++static int dsi_display_resume(struct omap_dss_device *dssdev) ++{ ++ int r; ++ ++ DSSDBG("dsi_display_resume\n"); ++ ++ mutex_lock(&dsi.lock); ++ dsi_bus_lock(); ++ ++ if (dssdev->state != OMAP_DSS_DISPLAY_SUSPENDED) { ++ DSSERR("dssdev not suspended\n"); ++ r = -EINVAL; ++ goto err0; ++ } ++ ++ enable_clocks(1); ++ dsi_enable_pll_clock(1); ++ ++ r = _dsi_reset(); ++ if (r) ++ goto err1; ++ ++ dsi_core_init(); ++ ++ r = dsi_display_init_dispc(dssdev); ++ if (r) ++ goto err1; ++ ++ r = dsi_display_init_dsi(dssdev); ++ if (r) ++ goto err2; ++ ++ dssdev->state = OMAP_DSS_DISPLAY_ACTIVE; ++ ++ r = dsi_set_te(dssdev, dsi.te_enabled); ++ if (r) ++ goto err2; ++ ++ dsi.update_mode = dsi.user_update_mode; ++ if (dsi.update_mode == OMAP_DSS_UPDATE_AUTO) ++ dsi_start_auto_update(dssdev); ++ ++ dsi_bus_unlock(); ++ mutex_unlock(&dsi.lock); ++ ++ return 0; ++ ++err2: ++ dsi_display_uninit_dispc(dssdev); ++err1: ++ enable_clocks(0); ++ dsi_enable_pll_clock(0); ++err0: ++ dsi_bus_unlock(); ++ mutex_unlock(&dsi.lock); ++ DSSDBG("dsi_display_resume FAILED\n"); ++ return r; ++} ++ ++static int dsi_display_update(struct omap_dss_device *dssdev, ++ u16 x, u16 y, u16 w, u16 h) ++{ ++ int r = 0; ++ u16 dw, dh; ++ ++ DSSDBG("dsi_display_update(%d,%d %dx%d)\n", x, y, w, h); ++ ++ mutex_lock(&dsi.lock); ++ ++ if (dsi.update_mode != OMAP_DSS_UPDATE_MANUAL) ++ goto end; ++ ++ if (dssdev->state != OMAP_DSS_DISPLAY_ACTIVE) ++ goto end; ++ ++ dssdev->get_resolution(dssdev, &dw, &dh); ++ ++ if (x > dw || y > dh) ++ goto end; ++ ++ if (x + w > dw) ++ w = dw - x; ++ ++ if (y + h > dh) ++ h = dh - y; ++ ++ if (w == 0 || h == 0) ++ goto end; ++ ++ dsi_set_update_region(dssdev, x, y, w, h); ++ ++ wake_up(&dsi.waitqueue); ++ ++end: ++ mutex_unlock(&dsi.lock); ++ ++ return r; ++} ++ ++static int dsi_display_sync(struct omap_dss_device *dssdev) ++{ ++ bool wait; ++ ++ DSSDBG("dsi_display_sync()\n"); ++ ++ mutex_lock(&dsi.lock); ++ dsi_bus_lock(); ++ ++ if (dsi.update_mode == OMAP_DSS_UPDATE_MANUAL && ++ dsi.update_region.dirty) { ++ INIT_COMPLETION(dsi.update_completion); ++ wait = true; ++ } else { ++ wait = false; ++ } ++ ++ dsi_bus_unlock(); ++ mutex_unlock(&dsi.lock); ++ ++ if (wait) ++ wait_for_completion_interruptible(&dsi.update_completion); ++ ++ DSSDBG("dsi_display_sync() done\n"); ++ return 0; ++} ++ ++static int dsi_display_set_update_mode(struct omap_dss_device *dssdev, ++ enum omap_dss_update_mode mode) ++{ ++ DSSDBGF("%d", mode); ++ ++ mutex_lock(&dsi.lock); ++ dsi_bus_lock(); ++ ++ if (dsi.update_mode != mode) { ++ dsi.user_update_mode = mode; ++ dsi.update_mode = mode; ++ ++ if (dssdev->state == OMAP_DSS_DISPLAY_ACTIVE && ++ mode == OMAP_DSS_UPDATE_AUTO) ++ dsi_start_auto_update(dssdev); ++ } ++ ++ dsi_bus_unlock(); ++ mutex_unlock(&dsi.lock); ++ ++ return 0; ++} ++ ++static enum omap_dss_update_mode dsi_display_get_update_mode( ++ struct omap_dss_device *dssdev) ++{ ++ return dsi.update_mode; ++} ++ ++ ++static int dsi_display_enable_te(struct omap_dss_device *dssdev, bool enable) ++{ ++ int r = 0; ++ ++ DSSDBGF("%d", enable); ++ ++ if (!dssdev->driver->enable_te) ++ return -ENOENT; ++ ++ dsi_bus_lock(); ++ ++ dsi.te_enabled = enable; ++ ++ if (dssdev->state != OMAP_DSS_DISPLAY_ACTIVE) ++ goto end; ++ ++ r = dsi_set_te(dssdev, enable); ++end: ++ dsi_bus_unlock(); ++ ++ return r; ++} ++ ++static int dsi_display_get_te(struct omap_dss_device *dssdev) ++{ ++ return dsi.te_enabled; ++} ++ ++static int dsi_display_set_rotate(struct omap_dss_device *dssdev, u8 rotate) ++{ ++ ++ DSSDBGF("%d", rotate); ++ ++ if (!dssdev->driver->set_rotate || !dssdev->driver->get_rotate) ++ return -EINVAL; ++ ++ dsi_bus_lock(); ++ dssdev->driver->set_rotate(dssdev, rotate); ++ if (dsi.update_mode == OMAP_DSS_UPDATE_AUTO) { ++ u16 w, h; ++ /* the display dimensions may have changed, so set a new ++ * update region */ ++ dssdev->get_resolution(dssdev, &w, &h); ++ dsi_set_update_region(dssdev, 0, 0, w, h); ++ } ++ dsi_bus_unlock(); ++ ++ return 0; ++} ++ ++static u8 dsi_display_get_rotate(struct omap_dss_device *dssdev) ++{ ++ if (!dssdev->driver->set_rotate || !dssdev->driver->get_rotate) ++ return 0; ++ ++ return dssdev->driver->get_rotate(dssdev); ++} ++ ++static int dsi_display_set_mirror(struct omap_dss_device *dssdev, bool mirror) ++{ ++ DSSDBGF("%d", mirror); ++ ++ if (!dssdev->driver->set_mirror || !dssdev->driver->get_mirror) ++ return -EINVAL; ++ ++ dsi_bus_lock(); ++ dssdev->driver->set_mirror(dssdev, mirror); ++ dsi_bus_unlock(); ++ ++ return 0; ++} ++ ++static bool dsi_display_get_mirror(struct omap_dss_device *dssdev) ++{ ++ if (!dssdev->driver->set_mirror || !dssdev->driver->get_mirror) ++ return 0; ++ ++ return dssdev->driver->get_mirror(dssdev); ++} ++ ++static int dsi_display_run_test(struct omap_dss_device *dssdev, int test_num) ++{ ++ int r; ++ ++ if (dssdev->state != OMAP_DSS_DISPLAY_ACTIVE) ++ return -EIO; ++ ++ DSSDBGF("%d", test_num); ++ ++ dsi_bus_lock(); ++ ++ /* run test first in low speed mode */ ++ dsi_vc_enable_hs(0, 0); ++ ++ if (dssdev->driver->run_test) { ++ r = dssdev->driver->run_test(dssdev, test_num); ++ if (r) ++ goto end; ++ } ++ ++ /* then in high speed */ ++ dsi_vc_enable_hs(0, 1); ++ ++ if (dssdev->driver->run_test) { ++ r = dssdev->driver->run_test(dssdev, test_num); ++ if (r) ++ goto end; ++ } ++ ++end: ++ dsi_vc_enable_hs(0, 1); ++ ++ dsi_bus_unlock(); ++ ++ return r; ++} ++ ++static int dsi_display_memory_read(struct omap_dss_device *dssdev, ++ void *buf, size_t size, ++ u16 x, u16 y, u16 w, u16 h) ++{ ++ int r; ++ ++ DSSDBGF(""); ++ ++ if (!dssdev->driver->memory_read) ++ return -EINVAL; ++ ++ if (dssdev->state != OMAP_DSS_DISPLAY_ACTIVE) ++ return -EIO; ++ ++ dsi_bus_lock(); ++ ++ r = dssdev->driver->memory_read(dssdev, buf, size, ++ x, y, w, h); ++ ++ dsi_bus_unlock(); ++ ++ return r; ++} ++ ++void dsi_get_overlay_fifo_thresholds(enum omap_plane plane, ++ u32 fifo_size, enum omap_burst_size *burst_size, ++ u32 *fifo_low, u32 *fifo_high) ++{ ++ unsigned burst_size_bytes; ++ ++ *burst_size = OMAP_DSS_BURST_16x32; ++ burst_size_bytes = 16 * 32 / 8; ++ ++ *fifo_high = fifo_size - burst_size_bytes; ++ *fifo_low = 0; ++} ++ ++int dsi_init_display(struct omap_dss_device *dssdev) ++{ ++ DSSDBG("DSI init\n"); ++ ++ dssdev->enable = dsi_display_enable; ++ dssdev->disable = dsi_display_disable; ++ dssdev->suspend = dsi_display_suspend; ++ dssdev->resume = dsi_display_resume; ++ dssdev->update = dsi_display_update; ++ dssdev->sync = dsi_display_sync; ++ dssdev->set_update_mode = dsi_display_set_update_mode; ++ dssdev->get_update_mode = dsi_display_get_update_mode; ++ dssdev->enable_te = dsi_display_enable_te; ++ dssdev->get_te = dsi_display_get_te; ++ ++ dssdev->get_rotate = dsi_display_get_rotate; ++ dssdev->set_rotate = dsi_display_set_rotate; ++ ++ dssdev->get_mirror = dsi_display_get_mirror; ++ dssdev->set_mirror = dsi_display_set_mirror; ++ ++ dssdev->run_test = dsi_display_run_test; ++ dssdev->memory_read = dsi_display_memory_read; ++ ++ dssdev->caps = OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE; ++ ++ dsi.vc[0].dssdev = dssdev; ++ dsi.vc[1].dssdev = dssdev; ++ ++ return 0; ++} ++ ++int dsi_init(struct platform_device *pdev) ++{ ++ u32 rev; ++ struct sched_param param = { ++ .sched_priority = MAX_USER_RT_PRIO-1 ++ }; ++ ++ spin_lock_init(&dsi.errors_lock); ++ dsi.errors = 0; ++ ++ /* XXX fail properly */ ++ ++ init_completion(&dsi.bta_completion); ++ init_completion(&dsi.update_completion); ++ ++ dsi.thread = kthread_create(dsi_update_thread, NULL, "dsi"); ++ if (IS_ERR(dsi.thread)) { ++ DSSERR("cannot create kthread\n"); ++ return PTR_ERR(dsi.thread); ++ } ++ sched_setscheduler(dsi.thread, SCHED_FIFO, ¶m); ++ ++ init_waitqueue_head(&dsi.waitqueue); ++ spin_lock_init(&dsi.update_lock); ++ ++ mutex_init(&dsi.lock); ++ mutex_init(&dsi.bus_lock); ++ ++ dsi.update_mode = OMAP_DSS_UPDATE_DISABLED; ++ dsi.user_update_mode = OMAP_DSS_UPDATE_DISABLED; ++ ++ dsi.base = ioremap(DSI_BASE, DSI_SZ_REGS); ++ if (!dsi.base) { ++ DSSERR("can't ioremap DSI\n"); ++ return -ENOMEM; ++ } ++ ++ dsi.vdds_dsi_reg = regulator_get(&pdev->dev, "vdds_dsi"); ++ if (IS_ERR(dsi.vdds_dsi_reg)) { ++ iounmap(dsi.base); ++ DSSERR("can't get VDDS_DSI regulator\n"); ++ return PTR_ERR(dsi.vdds_dsi_reg); ++ } ++ ++ enable_clocks(1); ++ ++ rev = dsi_read_reg(DSI_REVISION); ++ printk(KERN_INFO "OMAP DSI rev %d.%d\n", ++ FLD_GET(rev, 7, 4), FLD_GET(rev, 3, 0)); ++ ++ enable_clocks(0); ++ ++ wake_up_process(dsi.thread); ++ ++ return 0; ++} ++ ++void dsi_exit(void) ++{ ++ kthread_stop(dsi.thread); ++ ++ regulator_put(dsi.vdds_dsi_reg); ++ ++ iounmap(dsi.base); ++ ++ DSSDBG("omap_dsi_exit\n"); ++} ++ +diff --git a/drivers/video/omap2/dss/dss.c b/drivers/video/omap2/dss/dss.c +new file mode 100644 +index 0000000..aab9758 +--- /dev/null ++++ b/drivers/video/omap2/dss/dss.c +@@ -0,0 +1,347 @@ ++/* ++ * linux/drivers/video/omap2/dss/dss.c ++ * ++ * Copyright (C) 2009 Nokia Corporation ++ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com> ++ * ++ * Some code and ideas taken from drivers/video/omap/ driver ++ * by Imre Deak. ++ * ++ * This program is free software; you can redistribute it and/or modify it ++ * under the terms of the GNU General Public License version 2 as published by ++ * the Free Software Foundation. ++ * ++ * This program is distributed in the hope that it will be useful, but WITHOUT ++ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or ++ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for ++ * more details. ++ * ++ * You should have received a copy of the GNU General Public License along with ++ * this program. If not, see <http://www.gnu.org/licenses/>. ++ */ ++ ++#define DSS_SUBSYS_NAME "DSS" ++ ++#include <linux/kernel.h> ++#include <linux/io.h> ++#include <linux/err.h> ++#include <linux/delay.h> ++#include <linux/interrupt.h> ++#include <linux/seq_file.h> ++ ++#include <mach/display.h> ++#include "dss.h" ++ ++#define DSS_BASE 0x48050000 ++ ++#define DSS_SZ_REGS SZ_512 ++ ++struct dss_reg { ++ u16 idx; ++}; ++ ++#define DSS_REG(idx) ((const struct dss_reg) { idx }) ++ ++#define DSS_REVISION DSS_REG(0x0000) ++#define DSS_SYSCONFIG DSS_REG(0x0010) ++#define DSS_SYSSTATUS DSS_REG(0x0014) ++#define DSS_IRQSTATUS DSS_REG(0x0018) ++#define DSS_CONTROL DSS_REG(0x0040) ++#define DSS_SDI_CONTROL DSS_REG(0x0044) ++#define DSS_PLL_CONTROL DSS_REG(0x0048) ++#define DSS_SDI_STATUS DSS_REG(0x005C) ++ ++#define REG_GET(idx, start, end) \ ++ FLD_GET(dss_read_reg(idx), start, end) ++ ++#define REG_FLD_MOD(idx, val, start, end) \ ++ dss_write_reg(idx, FLD_MOD(dss_read_reg(idx), val, start, end)) ++ ++static struct { ++ void __iomem *base; ++ ++ u32 ctx[DSS_SZ_REGS / sizeof(u32)]; ++} dss; ++ ++static int _omap_dss_wait_reset(void); ++ ++static inline void dss_write_reg(const struct dss_reg idx, u32 val) ++{ ++ __raw_writel(val, dss.base + idx.idx); ++} ++ ++static inline u32 dss_read_reg(const struct dss_reg idx) ++{ ++ return __raw_readl(dss.base + idx.idx); ++} ++ ++#define SR(reg) \ ++ dss.ctx[(DSS_##reg).idx / sizeof(u32)] = dss_read_reg(DSS_##reg) ++#define RR(reg) \ ++ dss_write_reg(DSS_##reg, dss.ctx[(DSS_##reg).idx / sizeof(u32)]) ++ ++void dss_save_context(void) ++{ ++ if (cpu_is_omap24xx()) ++ return; ++ ++ SR(SYSCONFIG); ++ SR(CONTROL); ++ ++#ifdef CONFIG_OMAP2_DSS_SDI ++ SR(SDI_CONTROL); ++ SR(PLL_CONTROL); ++#endif ++} ++ ++void dss_restore_context(void) ++{ ++ if (_omap_dss_wait_reset()) ++ DSSERR("DSS not coming out of reset after sleep\n"); ++ ++ RR(SYSCONFIG); ++ RR(CONTROL); ++ ++#ifdef CONFIG_OMAP2_DSS_SDI ++ RR(SDI_CONTROL); ++ RR(PLL_CONTROL); ++#endif ++} ++ ++#undef SR ++#undef RR ++ ++void dss_sdi_init(u8 datapairs) ++{ ++ u32 l; ++ ++ BUG_ON(datapairs > 3 || datapairs < 1); ++ ++ l = dss_read_reg(DSS_SDI_CONTROL); ++ l = FLD_MOD(l, 0xf, 19, 15); /* SDI_PDIV */ ++ l = FLD_MOD(l, datapairs-1, 3, 2); /* SDI_PRSEL */ ++ l = FLD_MOD(l, 2, 1, 0); /* SDI_BWSEL */ ++ dss_write_reg(DSS_SDI_CONTROL, l); ++ ++ l = dss_read_reg(DSS_PLL_CONTROL); ++ l = FLD_MOD(l, 0x7, 25, 22); /* SDI_PLL_FREQSEL */ ++ l = FLD_MOD(l, 0xb, 16, 11); /* SDI_PLL_REGN */ ++ l = FLD_MOD(l, 0xb4, 10, 1); /* SDI_PLL_REGM */ ++ dss_write_reg(DSS_PLL_CONTROL, l); ++} ++ ++void dss_sdi_enable(void) ++{ ++ dispc_pck_free_enable(1); ++ ++ /* Reset SDI PLL */ ++ REG_FLD_MOD(DSS_PLL_CONTROL, 1, 18, 18); /* SDI_PLL_SYSRESET */ ++ udelay(1); /* wait 2x PCLK */ ++ ++ /* Lock SDI PLL */ ++ REG_FLD_MOD(DSS_PLL_CONTROL, 1, 28, 28); /* SDI_PLL_GOBIT */ ++ ++ /* Waiting for PLL lock request to complete */ ++ while (dss_read_reg(DSS_SDI_STATUS) & (1 << 6)) ++ ; ++ ++ /* Clearing PLL_GO bit */ ++ REG_FLD_MOD(DSS_PLL_CONTROL, 0, 28, 28); ++ ++ /* Waiting for PLL to lock */ ++ while (!(dss_read_reg(DSS_SDI_STATUS) & (1 << 5))) ++ ; ++ ++ dispc_lcd_enable_signal(1); ++ ++ /* Waiting for SDI reset to complete */ ++ while (!(dss_read_reg(DSS_SDI_STATUS) & (1 << 2))) ++ ; ++} ++ ++void dss_sdi_disable(void) ++{ ++ dispc_lcd_enable_signal(0); ++ ++ dispc_pck_free_enable(0); ++ ++ /* Reset SDI PLL */ ++ REG_FLD_MOD(DSS_PLL_CONTROL, 0, 18, 18); /* SDI_PLL_SYSRESET */ ++} ++ ++void dss_dump_regs(struct seq_file *s) ++{ ++#define DUMPREG(r) seq_printf(s, "%-35s %08x\n", #r, dss_read_reg(r)) ++ ++ dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1); ++ ++ DUMPREG(DSS_REVISION); ++ DUMPREG(DSS_SYSCONFIG); ++ DUMPREG(DSS_SYSSTATUS); ++ DUMPREG(DSS_IRQSTATUS); ++ DUMPREG(DSS_CONTROL); ++ DUMPREG(DSS_SDI_CONTROL); ++ DUMPREG(DSS_PLL_CONTROL); ++ DUMPREG(DSS_SDI_STATUS); ++ ++ dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1); ++#undef DUMPREG ++} ++ ++void dss_select_clk_source(bool dsi, bool dispc) ++{ ++ u32 r; ++ r = dss_read_reg(DSS_CONTROL); ++ r = FLD_MOD(r, dsi, 1, 1); /* DSI_CLK_SWITCH */ ++ r = FLD_MOD(r, dispc, 0, 0); /* DISPC_CLK_SWITCH */ ++ dss_write_reg(DSS_CONTROL, r); ++} ++ ++int dss_get_dsi_clk_source(void) ++{ ++ return FLD_GET(dss_read_reg(DSS_CONTROL), 1, 1); ++} ++ ++int dss_get_dispc_clk_source(void) ++{ ++ return FLD_GET(dss_read_reg(DSS_CONTROL), 0, 0); ++} ++ ++static irqreturn_t dss_irq_handler_omap2(int irq, void *arg) ++{ ++ dispc_irq_handler(); ++ ++ return IRQ_HANDLED; ++} ++ ++static irqreturn_t dss_irq_handler_omap3(int irq, void *arg) ++{ ++ u32 irqstatus; ++ ++ irqstatus = dss_read_reg(DSS_IRQSTATUS); ++ ++ if (irqstatus & (1<<0)) /* DISPC_IRQ */ ++ dispc_irq_handler(); ++#ifdef CONFIG_OMAP2_DSS_DSI ++ if (irqstatus & (1<<1)) /* DSI_IRQ */ ++ dsi_irq_handler(); ++#endif ++ ++ return IRQ_HANDLED; ++} ++ ++static int _omap_dss_wait_reset(void) ++{ ++ unsigned timeout = 1000; ++ ++ while (REG_GET(DSS_SYSSTATUS, 0, 0) == 0) { ++ udelay(1); ++ if (!--timeout) { ++ DSSERR("soft reset failed\n"); ++ return -ENODEV; ++ } ++ } ++ ++ return 0; ++} ++ ++static int _omap_dss_reset(void) ++{ ++ /* Soft reset */ ++ REG_FLD_MOD(DSS_SYSCONFIG, 1, 1, 1); ++ return _omap_dss_wait_reset(); ++} ++ ++void dss_set_venc_output(enum omap_dss_venc_type type) ++{ ++ int l = 0; ++ ++ if (type == OMAP_DSS_VENC_TYPE_COMPOSITE) ++ l = 0; ++ else if (type == OMAP_DSS_VENC_TYPE_SVIDEO) ++ l = 1; ++ else ++ BUG(); ++ ++ /* venc out selection. 0 = comp, 1 = svideo */ ++ REG_FLD_MOD(DSS_CONTROL, l, 6, 6); ++} ++ ++void dss_set_dac_pwrdn_bgz(bool enable) ++{ ++ REG_FLD_MOD(DSS_CONTROL, enable, 5, 5); /* DAC Power-Down Control */ ++} ++ ++int dss_init(bool skip_init) ++{ ++ int r; ++ u32 rev; ++ ++ dss.base = ioremap(DSS_BASE, DSS_SZ_REGS); ++ if (!dss.base) { ++ DSSERR("can't ioremap DSS\n"); ++ r = -ENOMEM; ++ goto fail0; ++ } ++ ++ if (!skip_init) { ++ /* disable LCD and DIGIT output. This seems to fix the synclost ++ * problem that we get, if the bootloader starts the DSS and ++ * the kernel resets it */ ++ omap_writel(omap_readl(0x48050440) & ~0x3, 0x48050440); ++ ++ /* We need to wait here a bit, otherwise we sometimes start to ++ * get synclost errors, and after that only power cycle will ++ * restore DSS functionality. I have no idea why this happens. ++ * And we have to wait _before_ resetting the DSS, but after ++ * enabling clocks. ++ */ ++ msleep(50); ++ ++ _omap_dss_reset(); ++ } ++ ++ /* autoidle */ ++ REG_FLD_MOD(DSS_SYSCONFIG, 1, 0, 0); ++ ++ /* Select DPLL */ ++ REG_FLD_MOD(DSS_CONTROL, 0, 0, 0); ++ ++#ifdef CONFIG_OMAP2_DSS_VENC ++ REG_FLD_MOD(DSS_CONTROL, 1, 4, 4); /* venc dac demen */ ++ REG_FLD_MOD(DSS_CONTROL, 1, 3, 3); /* venc clock 4x enable */ ++ REG_FLD_MOD(DSS_CONTROL, 0, 2, 2); /* venc clock mode = normal */ ++#endif ++ ++ r = request_irq(INT_24XX_DSS_IRQ, ++ cpu_is_omap24xx() ++ ? dss_irq_handler_omap2 ++ : dss_irq_handler_omap3, ++ 0, "OMAP DSS", NULL); ++ ++ if (r < 0) { ++ DSSERR("omap2 dss: request_irq failed\n"); ++ goto fail1; ++ } ++ ++ dss_save_context(); ++ ++ rev = dss_read_reg(DSS_REVISION); ++ printk(KERN_INFO "OMAP DSS rev %d.%d\n", ++ FLD_GET(rev, 7, 4), FLD_GET(rev, 3, 0)); ++ ++ return 0; ++ ++fail1: ++ iounmap(dss.base); ++fail0: ++ return r; ++} ++ ++void dss_exit(void) ++{ ++ free_irq(INT_24XX_DSS_IRQ, NULL); ++ ++ iounmap(dss.base); ++} ++ +diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h +new file mode 100644 +index 0000000..50f7f5f +--- /dev/null ++++ b/drivers/video/omap2/dss/dss.h +@@ -0,0 +1,356 @@ ++/* ++ * linux/drivers/video/omap2/dss/dss.h ++ * ++ * Copyright (C) 2009 Nokia Corporation ++ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com> ++ * ++ * Some code and ideas taken from drivers/video/omap/ driver ++ * by Imre Deak. ++ * ++ * This program is free software; you can redistribute it and/or modify it ++ * under the terms of the GNU General Public License version 2 as published by ++ * the Free Software Foundation. ++ * ++ * This program is distributed in the hope that it will be useful, but WITHOUT ++ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or ++ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for ++ * more details. ++ * ++ * You should have received a copy of the GNU General Public License along with ++ * this program. If not, see <http://www.gnu.org/licenses/>. ++ */ ++ ++#ifndef __OMAP2_DSS_H ++#define __OMAP2_DSS_H ++ ++#ifdef CONFIG_OMAP2_DSS_DEBUG_SUPPORT ++#define DEBUG ++#endif ++ ++#ifdef DEBUG ++extern unsigned int dss_debug; ++#ifdef DSS_SUBSYS_NAME ++#define DSSDBG(format, ...) \ ++ if (dss_debug) \ ++ printk(KERN_DEBUG "omapdss " DSS_SUBSYS_NAME ": " format, \ ++ ## __VA_ARGS__) ++#else ++#define DSSDBG(format, ...) \ ++ if (dss_debug) \ ++ printk(KERN_DEBUG "omapdss: " format, ## __VA_ARGS__) ++#endif ++ ++#ifdef DSS_SUBSYS_NAME ++#define DSSDBGF(format, ...) \ ++ if (dss_debug) \ ++ printk(KERN_DEBUG "omapdss " DSS_SUBSYS_NAME \ ++ ": %s(" format ")\n", \ ++ __func__, \ ++ ## __VA_ARGS__) ++#else ++#define DSSDBGF(format, ...) \ ++ if (dss_debug) \ ++ printk(KERN_DEBUG "omapdss: " \ ++ ": %s(" format ")\n", \ ++ __func__, \ ++ ## __VA_ARGS__) ++#endif ++ ++#else /* DEBUG */ ++#define DSSDBG(format, ...) ++#define DSSDBGF(format, ...) ++#endif ++ ++ ++#ifdef DSS_SUBSYS_NAME ++#define DSSERR(format, ...) \ ++ printk(KERN_ERR "omapdss " DSS_SUBSYS_NAME " error: " format, \ ++ ## __VA_ARGS__) ++#else ++#define DSSERR(format, ...) \ ++ printk(KERN_ERR "omapdss error: " format, ## __VA_ARGS__) ++#endif ++ ++#ifdef DSS_SUBSYS_NAME ++#define DSSINFO(format, ...) \ ++ printk(KERN_INFO "omapdss " DSS_SUBSYS_NAME ": " format, \ ++ ## __VA_ARGS__) ++#else ++#define DSSINFO(format, ...) \ ++ printk(KERN_INFO "omapdss: " format, ## __VA_ARGS__) ++#endif ++ ++#ifdef DSS_SUBSYS_NAME ++#define DSSWARN(format, ...) \ ++ printk(KERN_WARNING "omapdss " DSS_SUBSYS_NAME ": " format, \ ++ ## __VA_ARGS__) ++#else ++#define DSSWARN(format, ...) \ ++ printk(KERN_WARNING "omapdss: " format, ## __VA_ARGS__) ++#endif ++ ++/* OMAP TRM gives bitfields as start:end, where start is the higher bit ++ number. For example 7:0 */ ++#define FLD_MASK(start, end) (((1 << (start - end + 1)) - 1) << (end)) ++#define FLD_VAL(val, start, end) (((val) << end) & FLD_MASK(start, end)) ++#define FLD_GET(val, start, end) (((val) & FLD_MASK(start, end)) >> (end)) ++#define FLD_MOD(orig, val, start, end) \ ++ (((orig) & ~FLD_MASK(start, end)) | FLD_VAL(val, start, end)) ++ ++#define DISPC_MAX_FCK 173000000 ++ ++enum omap_burst_size { ++ OMAP_DSS_BURST_4x32 = 0, ++ OMAP_DSS_BURST_8x32 = 1, ++ OMAP_DSS_BURST_16x32 = 2, ++}; ++ ++enum omap_parallel_interface_mode { ++ OMAP_DSS_PARALLELMODE_BYPASS, /* MIPI DPI */ ++ OMAP_DSS_PARALLELMODE_RFBI, /* MIPI DBI */ ++ OMAP_DSS_PARALLELMODE_DSI, ++}; ++ ++enum dss_clock { ++ DSS_CLK_ICK = 1 << 0, ++ DSS_CLK_FCK1 = 1 << 1, ++ DSS_CLK_FCK2 = 1 << 2, ++ DSS_CLK_54M = 1 << 3, ++ DSS_CLK_96M = 1 << 4, ++}; ++ ++struct dispc_clock_info { ++ /* rates that we get with dividers below */ ++ unsigned long fck; ++ unsigned long lck; ++ unsigned long pck; ++ ++ /* dividers */ ++ u16 fck_div; ++ u16 lck_div; ++ u16 pck_div; ++}; ++ ++struct dsi_clock_info { ++ /* rates that we get with dividers below */ ++ unsigned long fint; ++ unsigned long dsiphy; ++ unsigned long clkin; ++ unsigned long dsi1_pll_fclk; ++ unsigned long dsi2_pll_fclk; ++ unsigned long lck; ++ unsigned long pck; ++ ++ /* dividers */ ++ u16 regn; ++ u16 regm; ++ u16 regm3; ++ u16 regm4; ++ ++ u16 lck_div; ++ u16 pck_div; ++ ++ u8 highfreq; ++ bool use_dss2_fck; ++}; ++ ++struct seq_file; ++struct platform_device; ++ ++/* core */ ++void dss_clk_enable(enum dss_clock clks); ++void dss_clk_disable(enum dss_clock clks); ++unsigned long dss_clk_get_rate(enum dss_clock clk); ++int dss_need_ctx_restore(void); ++void dss_dump_clocks(struct seq_file *s); ++struct bus_type *dss_get_bus(void); ++ ++/* display */ ++int dss_suspend_all_devices(void); ++int dss_resume_all_devices(void); ++ ++void dss_init_device(struct platform_device *pdev, ++ struct omap_dss_device *dssdev); ++void dss_uninit_device(struct platform_device *pdev, ++ struct omap_dss_device *dssdev); ++bool dss_use_replication(struct omap_dss_device *dssdev, ++ enum omap_color_mode mode); ++void default_get_overlay_fifo_thresholds(enum omap_plane plane, ++ u32 fifo_size, enum omap_burst_size *burst_size, ++ u32 *fifo_low, u32 *fifo_high); ++ ++/* manager */ ++int dss_init_overlay_managers(struct platform_device *pdev); ++void dss_uninit_overlay_managers(struct platform_device *pdev); ++int dss_mgr_wait_for_go_ovl(struct omap_overlay *ovl); ++void dss_setup_partial_planes(struct omap_dss_device *dssdev, ++ u16 *x, u16 *y, u16 *w, u16 *h); ++void dss_start_update(struct omap_dss_device *dssdev); ++ ++/* overlay */ ++void dss_init_overlays(struct platform_device *pdev); ++void dss_uninit_overlays(struct platform_device *pdev); ++int dss_check_overlay(struct omap_overlay *ovl, struct omap_dss_device *dssdev); ++void dss_overlay_setup_dispc_manager(struct omap_overlay_manager *mgr); ++#ifdef L4_EXAMPLE ++void dss_overlay_setup_l4_manager(struct omap_overlay_manager *mgr); ++#endif ++void dss_recheck_connections(struct omap_dss_device *dssdev, bool force); ++ ++/* DSS */ ++int dss_init(bool skip_init); ++void dss_exit(void); ++ ++void dss_save_context(void); ++void dss_restore_context(void); ++ ++void dss_dump_regs(struct seq_file *s); ++ ++void dss_sdi_init(u8 datapairs); ++void dss_sdi_enable(void); ++void dss_sdi_disable(void); ++ ++void dss_select_clk_source(bool dsi, bool dispc); ++int dss_get_dsi_clk_source(void); ++int dss_get_dispc_clk_source(void); ++void dss_set_venc_output(enum omap_dss_venc_type type); ++void dss_set_dac_pwrdn_bgz(bool enable); ++ ++/* SDI */ ++int sdi_init(bool skip_init); ++void sdi_exit(void); ++int sdi_init_display(struct omap_dss_device *display); ++ ++/* DSI */ ++int dsi_init(struct platform_device *pdev); ++void dsi_exit(void); ++ ++void dsi_dump_clocks(struct seq_file *s); ++void dsi_dump_regs(struct seq_file *s); ++ ++void dsi_save_context(void); ++void dsi_restore_context(void); ++ ++int dsi_init_display(struct omap_dss_device *display); ++void dsi_irq_handler(void); ++unsigned long dsi_get_dsi1_pll_rate(void); ++unsigned long dsi_get_dsi2_pll_rate(void); ++int dsi_pll_calc_pck(bool is_tft, unsigned long req_pck, ++ struct dsi_clock_info *cinfo); ++int dsi_pll_program(struct dsi_clock_info *cinfo); ++int dsi_pll_init(bool enable_hsclk, bool enable_hsdiv); ++void dsi_pll_uninit(void); ++void dsi_get_overlay_fifo_thresholds(enum omap_plane plane, ++ u32 fifo_size, enum omap_burst_size *burst_size, ++ u32 *fifo_low, u32 *fifo_high); ++ ++/* DPI */ ++int dpi_init(void); ++void dpi_exit(void); ++int dpi_init_display(struct omap_dss_device *dssdev); ++ ++/* DISPC */ ++int dispc_init(void); ++void dispc_exit(void); ++void dispc_dump_clocks(struct seq_file *s); ++void dispc_dump_regs(struct seq_file *s); ++void dispc_irq_handler(void); ++void dispc_fake_vsync_irq(void); ++ ++void dispc_save_context(void); ++void dispc_restore_context(void); ++ ++void dispc_enable_sidle(void); ++void dispc_disable_sidle(void); ++ ++void dispc_lcd_enable_signal_polarity(bool act_high); ++void dispc_lcd_enable_signal(bool enable); ++void dispc_pck_free_enable(bool enable); ++void dispc_enable_fifohandcheck(bool enable); ++ ++void dispc_set_lcd_size(u16 width, u16 height); ++void dispc_set_digit_size(u16 width, u16 height); ++u32 dispc_get_plane_fifo_size(enum omap_plane plane); ++void dispc_setup_plane_fifo(enum omap_plane plane, u32 low, u32 high); ++void dispc_enable_fifomerge(bool enable); ++void dispc_set_burst_size(enum omap_plane plane, ++ enum omap_burst_size burst_size); ++ ++void dispc_set_plane_ba0(enum omap_plane plane, u32 paddr); ++void dispc_set_plane_ba1(enum omap_plane plane, u32 paddr); ++void dispc_set_plane_pos(enum omap_plane plane, u16 x, u16 y); ++void dispc_set_plane_size(enum omap_plane plane, u16 width, u16 height); ++void dispc_set_channel_out(enum omap_plane plane, ++ enum omap_channel channel_out); ++ ++int dispc_setup_plane(enum omap_plane plane, ++ u32 paddr, u16 screen_width, ++ u16 pos_x, u16 pos_y, ++ u16 width, u16 height, ++ u16 out_width, u16 out_height, ++ enum omap_color_mode color_mode, ++ bool ilace, ++ enum omap_dss_rotation_type rotation_type, ++ u8 rotation, bool mirror, ++ u8 global_alpha); ++ ++bool dispc_go_busy(enum omap_channel channel); ++void dispc_go(enum omap_channel channel); ++void dispc_enable_lcd_out(bool enable); ++void dispc_enable_digit_out(bool enable); ++int dispc_enable_plane(enum omap_plane plane, bool enable); ++void dispc_enable_replication(enum omap_plane plane, bool enable); ++ ++void dispc_set_parallel_interface_mode(enum omap_parallel_interface_mode mode); ++void dispc_set_tft_data_lines(u8 data_lines); ++void dispc_set_lcd_display_type(enum omap_lcd_display_type type); ++void dispc_set_loadmode(enum omap_dss_load_mode mode); ++ ++void dispc_set_default_color(enum omap_channel channel, u32 color); ++u32 dispc_get_default_color(enum omap_channel channel); ++void dispc_set_trans_key(enum omap_channel ch, ++ enum omap_dss_trans_key_type type, ++ u32 trans_key); ++void dispc_get_trans_key(enum omap_channel ch, ++ enum omap_dss_trans_key_type *type, ++ u32 *trans_key); ++void dispc_enable_trans_key(enum omap_channel ch, bool enable); ++void dispc_enable_alpha_blending(enum omap_channel ch, bool enable); ++bool dispc_trans_key_enabled(enum omap_channel ch); ++bool dispc_alpha_blending_enabled(enum omap_channel ch); ++ ++bool dispc_lcd_timings_ok(struct omap_video_timings *timings); ++void dispc_set_lcd_timings(struct omap_video_timings *timings); ++unsigned long dispc_fclk_rate(void); ++unsigned long dispc_lclk_rate(void); ++unsigned long dispc_pclk_rate(void); ++void dispc_set_pol_freq(enum omap_panel_config config, u8 acbi, u8 acb); ++void find_lck_pck_divs(bool is_tft, unsigned long req_pck, unsigned long fck, ++ u16 *lck_div, u16 *pck_div); ++int dispc_calc_clock_div(bool is_tft, unsigned long req_pck, ++ struct dispc_clock_info *cinfo); ++int dispc_set_clock_div(struct dispc_clock_info *cinfo); ++int dispc_get_clock_div(struct dispc_clock_info *cinfo); ++void dispc_set_lcd_divisor(u16 lck_div, u16 pck_div); ++ ++ ++/* VENC */ ++int venc_init(struct platform_device *pdev); ++void venc_exit(void); ++void venc_dump_regs(struct seq_file *s); ++int venc_init_display(struct omap_dss_device *display); ++ ++/* RFBI */ ++int rfbi_init(void); ++void rfbi_exit(void); ++void rfbi_dump_regs(struct seq_file *s); ++ ++int rfbi_configure(int rfbi_module, int bpp, int lines); ++void rfbi_enable_rfbi(bool enable); ++void rfbi_transfer_area(u16 width, u16 height, ++ void (callback)(void *data), void *data); ++void rfbi_set_timings(int rfbi_module, struct rfbi_timings *t); ++unsigned long rfbi_get_max_tx_rate(void); ++int rfbi_init_display(struct omap_dss_device *display); ++ ++#endif +diff --git a/drivers/video/omap2/dss/manager.c b/drivers/video/omap2/dss/manager.c +new file mode 100644 +index 0000000..7ee0b2b +--- /dev/null ++++ b/drivers/video/omap2/dss/manager.c +@@ -0,0 +1,1487 @@ ++/* ++ * linux/drivers/video/omap2/dss/manager.c ++ * ++ * Copyright (C) 2009 Nokia Corporation ++ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com> ++ * ++ * Some code and ideas taken from drivers/video/omap/ driver ++ * by Imre Deak. ++ * ++ * This program is free software; you can redistribute it and/or modify it ++ * under the terms of the GNU General Public License version 2 as published by ++ * the Free Software Foundation. ++ * ++ * This program is distributed in the hope that it will be useful, but WITHOUT ++ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or ++ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for ++ * more details. ++ * ++ * You should have received a copy of the GNU General Public License along with ++ * this program. If not, see <http://www.gnu.org/licenses/>. ++ */ ++ ++#define DSS_SUBSYS_NAME "MANAGER" ++ ++#include <linux/kernel.h> ++#include <linux/module.h> ++#include <linux/platform_device.h> ++#include <linux/spinlock.h> ++#include <linux/jiffies.h> ++ ++#include <mach/display.h> ++#include <mach/cpu.h> ++ ++#include "dss.h" ++ ++static int num_managers; ++static struct list_head manager_list; ++ ++static ssize_t manager_name_show(struct omap_overlay_manager *mgr, char *buf) ++{ ++ return snprintf(buf, PAGE_SIZE, "%s\n", mgr->name); ++} ++ ++static ssize_t manager_display_show(struct omap_overlay_manager *mgr, char *buf) ++{ ++ return snprintf(buf, PAGE_SIZE, "%s\n", ++ mgr->device ? mgr->device->name : "<none>"); ++} ++ ++static ssize_t manager_display_store(struct omap_overlay_manager *mgr, ++ const char *buf, size_t size) ++{ ++ int r = 0; ++ size_t len = size; ++ struct omap_dss_device *dssdev = NULL; ++ ++ int match(struct omap_dss_device *dssdev, void *data) ++ { ++ const char *str = data; ++ return sysfs_streq(dssdev->name, str); ++ } ++ ++ if (buf[size-1] == '\n') ++ --len; ++ ++ if (len > 0) ++ dssdev = omap_dss_find_device((void *)buf, match); ++ ++ if (len > 0 && dssdev == NULL) ++ return -EINVAL; ++ ++ if (dssdev) ++ DSSDBG("display %s found\n", dssdev->name); ++ ++ if (mgr->device) { ++ r = mgr->unset_device(mgr); ++ if (r) { ++ DSSERR("failed to unset display\n"); ++ goto put_device; ++ } ++ } ++ ++ if (dssdev) { ++ r = mgr->set_device(mgr, dssdev); ++ if (r) { ++ DSSERR("failed to set manager\n"); ++ goto put_device; ++ } ++ ++ r = mgr->apply(mgr); ++ if (r) { ++ DSSERR("failed to apply dispc config\n"); ++ goto put_device; ++ } ++ } ++ ++put_device: ++ if (dssdev) ++ omap_dss_put_device(dssdev); ++ ++ return r ? r : size; ++} ++ ++static ssize_t manager_default_color_show(struct omap_overlay_manager *mgr, ++ char *buf) ++{ ++ return snprintf(buf, PAGE_SIZE, "%d\n", mgr->info.default_color); ++} ++ ++static ssize_t manager_default_color_store(struct omap_overlay_manager *mgr, ++ const char *buf, size_t size) ++{ ++ struct omap_overlay_manager_info info; ++ u32 color; ++ int r; ++ ++ if (sscanf(buf, "%d", &color) != 1) ++ return -EINVAL; ++ ++ mgr->get_manager_info(mgr, &info); ++ ++ info.default_color = color; ++ ++ r = mgr->set_manager_info(mgr, &info); ++ if (r) ++ return r; ++ ++ r = mgr->apply(mgr); ++ if (r) ++ return r; ++ ++ return size; ++} ++ ++static const char *trans_key_type_str[] = { ++ "gfx-destination", ++ "video-source", ++}; ++ ++static ssize_t manager_trans_key_type_show(struct omap_overlay_manager *mgr, ++ char *buf) ++{ ++ enum omap_dss_trans_key_type key_type; ++ ++ key_type = mgr->info.trans_key_type; ++ BUG_ON(key_type >= ARRAY_SIZE(trans_key_type_str)); ++ ++ return snprintf(buf, PAGE_SIZE, "%s\n", trans_key_type_str[key_type]); ++} ++ ++static ssize_t manager_trans_key_type_store(struct omap_overlay_manager *mgr, ++ const char *buf, size_t size) ++{ ++ enum omap_dss_trans_key_type key_type; ++ struct omap_overlay_manager_info info; ++ int r; ++ ++ for (key_type = OMAP_DSS_COLOR_KEY_GFX_DST; ++ key_type < ARRAY_SIZE(trans_key_type_str); key_type++) { ++ if (sysfs_streq(buf, trans_key_type_str[key_type])) ++ break; ++ } ++ ++ if (key_type == ARRAY_SIZE(trans_key_type_str)) ++ return -EINVAL; ++ ++ mgr->get_manager_info(mgr, &info); ++ ++ info.trans_key_type = key_type; ++ ++ r = mgr->set_manager_info(mgr, &info); ++ if (r) ++ return r; ++ ++ r = mgr->apply(mgr); ++ if (r) ++ return r; ++ ++ return size; ++} ++ ++static ssize_t manager_trans_key_value_show(struct omap_overlay_manager *mgr, ++ char *buf) ++{ ++ return snprintf(buf, PAGE_SIZE, "%d\n", mgr->info.trans_key); ++} ++ ++static ssize_t manager_trans_key_value_store(struct omap_overlay_manager *mgr, ++ const char *buf, size_t size) ++{ ++ struct omap_overlay_manager_info info; ++ u32 key_value; ++ int r; ++ ++ if (sscanf(buf, "%d", &key_value) != 1) ++ return -EINVAL; ++ ++ mgr->get_manager_info(mgr, &info); ++ ++ info.trans_key = key_value; ++ ++ r = mgr->set_manager_info(mgr, &info); ++ if (r) ++ return r; ++ ++ r = mgr->apply(mgr); ++ if (r) ++ return r; ++ ++ return size; ++} ++ ++static ssize_t manager_trans_key_enabled_show(struct omap_overlay_manager *mgr, ++ char *buf) ++{ ++ return snprintf(buf, PAGE_SIZE, "%d\n", mgr->info.trans_enabled); ++} ++ ++static ssize_t manager_trans_key_enabled_store(struct omap_overlay_manager *mgr, ++ const char *buf, size_t size) ++{ ++ struct omap_overlay_manager_info info; ++ int enable; ++ int r; ++ ++ if (sscanf(buf, "%d", &enable) != 1) ++ return -EINVAL; ++ ++ mgr->get_manager_info(mgr, &info); ++ ++ info.trans_enabled = enable ? true : false; ++ ++ r = mgr->set_manager_info(mgr, &info); ++ if (r) ++ return r; ++ ++ r = mgr->apply(mgr); ++ if (r) ++ return r; ++ ++ return size; ++} ++ ++static ssize_t manager_alpha_blending_enabled_show( ++ struct omap_overlay_manager *mgr, char *buf) ++{ ++ return snprintf(buf, PAGE_SIZE, "%d\n", mgr->info.alpha_enabled); ++} ++ ++static ssize_t manager_alpha_blending_enabled_store( ++ struct omap_overlay_manager *mgr, ++ const char *buf, size_t size) ++{ ++ struct omap_overlay_manager_info info; ++ int enable; ++ int r; ++ ++ if (sscanf(buf, "%d", &enable) != 1) ++ return -EINVAL; ++ ++ mgr->get_manager_info(mgr, &info); ++ ++ info.alpha_enabled = enable ? true : false; ++ ++ r = mgr->set_manager_info(mgr, &info); ++ if (r) ++ return r; ++ ++ r = mgr->apply(mgr); ++ if (r) ++ return r; ++ ++ return size; ++} ++ ++struct manager_attribute { ++ struct attribute attr; ++ ssize_t (*show)(struct omap_overlay_manager *, char *); ++ ssize_t (*store)(struct omap_overlay_manager *, const char *, size_t); ++}; ++ ++#define MANAGER_ATTR(_name, _mode, _show, _store) \ ++ struct manager_attribute manager_attr_##_name = \ ++ __ATTR(_name, _mode, _show, _store) ++ ++static MANAGER_ATTR(name, S_IRUGO, manager_name_show, NULL); ++static MANAGER_ATTR(display, S_IRUGO|S_IWUSR, ++ manager_display_show, manager_display_store); ++static MANAGER_ATTR(default_color, S_IRUGO|S_IWUSR, ++ manager_default_color_show, manager_default_color_store); ++static MANAGER_ATTR(trans_key_type, S_IRUGO|S_IWUSR, ++ manager_trans_key_type_show, manager_trans_key_type_store); ++static MANAGER_ATTR(trans_key_value, S_IRUGO|S_IWUSR, ++ manager_trans_key_value_show, manager_trans_key_value_store); ++static MANAGER_ATTR(trans_key_enabled, S_IRUGO|S_IWUSR, ++ manager_trans_key_enabled_show, ++ manager_trans_key_enabled_store); ++static MANAGER_ATTR(alpha_blending_enabled, S_IRUGO|S_IWUSR, ++ manager_alpha_blending_enabled_show, ++ manager_alpha_blending_enabled_store); ++ ++ ++static struct attribute *manager_sysfs_attrs[] = { ++ &manager_attr_name.attr, ++ &manager_attr_display.attr, ++ &manager_attr_default_color.attr, ++ &manager_attr_trans_key_type.attr, ++ &manager_attr_trans_key_value.attr, ++ &manager_attr_trans_key_enabled.attr, ++ &manager_attr_alpha_blending_enabled.attr, ++ NULL ++}; ++ ++static ssize_t manager_attr_show(struct kobject *kobj, struct attribute *attr, ++ char *buf) ++{ ++ struct omap_overlay_manager *manager; ++ struct manager_attribute *manager_attr; ++ ++ manager = container_of(kobj, struct omap_overlay_manager, kobj); ++ manager_attr = container_of(attr, struct manager_attribute, attr); ++ ++ if (!manager_attr->show) ++ return -ENOENT; ++ ++ return manager_attr->show(manager, buf); ++} ++ ++static ssize_t manager_attr_store(struct kobject *kobj, struct attribute *attr, ++ const char *buf, size_t size) ++{ ++ struct omap_overlay_manager *manager; ++ struct manager_attribute *manager_attr; ++ ++ manager = container_of(kobj, struct omap_overlay_manager, kobj); ++ manager_attr = container_of(attr, struct manager_attribute, attr); ++ ++ if (!manager_attr->store) ++ return -ENOENT; ++ ++ return manager_attr->store(manager, buf, size); ++} ++ ++static struct sysfs_ops manager_sysfs_ops = { ++ .show = manager_attr_show, ++ .store = manager_attr_store, ++}; ++ ++static struct kobj_type manager_ktype = { ++ .sysfs_ops = &manager_sysfs_ops, ++ .default_attrs = manager_sysfs_attrs, ++}; ++ ++/* ++ * We have 4 levels of cache for the dispc settings. First two are in SW and ++ * the latter two in HW. ++ * ++ * +--------------------+ ++ * |overlay/manager_info| ++ * +--------------------+ ++ * v ++ * apply() ++ * v ++ * +--------------------+ ++ * | dss_cache | ++ * +--------------------+ ++ * v ++ * configure() ++ * v ++ * +--------------------+ ++ * | shadow registers | ++ * +--------------------+ ++ * v ++ * VFP or lcd/digit_enable ++ * v ++ * +--------------------+ ++ * | registers | ++ * +--------------------+ ++ */ ++ ++struct overlay_cache_data { ++ /* If true, cache changed, but not written to shadow registers. Set ++ * in apply(), cleared when registers written. */ ++ bool dirty; ++ /* If true, shadow registers contain changed values not yet in real ++ * registers. Set when writing to shadow registers, cleared at ++ * VSYNC/EVSYNC */ ++ bool shadow_dirty; ++ ++ bool enabled; ++ ++ u32 paddr; ++ void __iomem *vaddr; ++ u16 screen_width; ++ u16 width; ++ u16 height; ++ enum omap_color_mode color_mode; ++ u8 rotation; ++ enum omap_dss_rotation_type rotation_type; ++ bool mirror; ++ ++ u16 pos_x; ++ u16 pos_y; ++ u16 out_width; /* if 0, out_width == width */ ++ u16 out_height; /* if 0, out_height == height */ ++ u8 global_alpha; ++ ++ enum omap_channel channel; ++ bool replication; ++ bool ilace; ++ ++ enum omap_burst_size burst_size; ++ u32 fifo_low; ++ u32 fifo_high; ++ ++ bool manual_update; ++}; ++ ++struct manager_cache_data { ++ /* If true, cache changed, but not written to shadow registers. Set ++ * in apply(), cleared when registers written. */ ++ bool dirty; ++ /* If true, shadow registers contain changed values not yet in real ++ * registers. Set when writing to shadow registers, cleared at ++ * VSYNC/EVSYNC */ ++ bool shadow_dirty; ++ ++ u32 default_color; ++ ++ enum omap_dss_trans_key_type trans_key_type; ++ u32 trans_key; ++ bool trans_enabled; ++ ++ bool alpha_enabled; ++ ++ bool manual_upd_display; ++ bool manual_update; ++ bool do_manual_update; ++ ++ /* manual update region */ ++ u16 x, y, w, h; ++}; ++ ++static struct { ++ spinlock_t lock; ++ struct overlay_cache_data overlay_cache[3]; ++ struct manager_cache_data manager_cache[2]; ++ ++ bool irq_enabled; ++} dss_cache; ++ ++ ++ ++static int omap_dss_set_device(struct omap_overlay_manager *mgr, ++ struct omap_dss_device *dssdev) ++{ ++ int i; ++ int r; ++ ++ if (dssdev->manager) { ++ DSSERR("display '%s' already has a manager '%s'\n", ++ dssdev->name, dssdev->manager->name); ++ return -EINVAL; ++ } ++ ++ if ((mgr->supported_displays & dssdev->type) == 0) { ++ DSSERR("display '%s' does not support manager '%s'\n", ++ dssdev->name, mgr->name); ++ return -EINVAL; ++ } ++ ++ for (i = 0; i < mgr->num_overlays; i++) { ++ struct omap_overlay *ovl = mgr->overlays[i]; ++ ++ if (ovl->manager != mgr || !ovl->info.enabled) ++ continue; ++ ++ r = dss_check_overlay(ovl, dssdev); ++ if (r) ++ return r; ++ } ++ ++ dssdev->manager = mgr; ++ mgr->device = dssdev; ++ mgr->device_changed = true; ++ ++ return 0; ++} ++ ++static int omap_dss_unset_device(struct omap_overlay_manager *mgr) ++{ ++ if (!mgr->device) { ++ DSSERR("failed to unset display, display not set.\n"); ++ return -EINVAL; ++ } ++ ++ mgr->device->manager = NULL; ++ mgr->device = NULL; ++ mgr->device_changed = true; ++ ++ return 0; ++} ++ ++static int dss_mgr_wait_for_go(struct omap_overlay_manager *mgr) ++{ ++ unsigned long timeout = msecs_to_jiffies(500); ++ struct manager_cache_data *mc; ++ enum omap_channel channel; ++ u32 irq; ++ int r; ++ int i; ++ ++ if (!mgr->device) ++ return 0; ++ ++ if (mgr->device->type == OMAP_DISPLAY_TYPE_VENC) { ++ irq = DISPC_IRQ_EVSYNC_ODD | DISPC_IRQ_EVSYNC_EVEN; ++ channel = OMAP_DSS_CHANNEL_DIGIT; ++ } else { ++ if (mgr->device->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE) { ++ enum omap_dss_update_mode mode; ++ mode = mgr->device->get_update_mode(mgr->device); ++ if (mode != OMAP_DSS_UPDATE_AUTO) ++ return 0; ++ ++ irq = DISPC_IRQ_FRAMEDONE; ++ } else { ++ irq = DISPC_IRQ_VSYNC; ++ } ++ channel = OMAP_DSS_CHANNEL_LCD; ++ } ++ ++ mc = &dss_cache.manager_cache[mgr->id]; ++ i = 0; ++ while (1) { ++ unsigned long flags; ++ bool shadow_dirty, dirty; ++ ++ spin_lock_irqsave(&dss_cache.lock, flags); ++ dirty = mc->dirty; ++ shadow_dirty = mc->shadow_dirty; ++ spin_unlock_irqrestore(&dss_cache.lock, flags); ++ ++ if (!dirty && !shadow_dirty) { ++ r = 0; ++ break; ++ } ++ ++ /* 4 iterations is the worst case: ++ * 1 - initial iteration, dirty = true (between VFP and VSYNC) ++ * 2 - first VSYNC, dirty = true ++ * 3 - dirty = false, shadow_dirty = true ++ * 4 - shadow_dirty = false */ ++ if (i++ == 3) { ++ DSSERR("mgr(%d)->wait_for_go() not finishing\n", ++ mgr->id); ++ r = 0; ++ break; ++ } ++ ++ r = omap_dispc_wait_for_irq_interruptible_timeout(irq, timeout); ++ if (r == -ERESTARTSYS) ++ break; ++ ++ if (r) { ++ DSSERR("mgr(%d)->wait_for_go() timeout\n", mgr->id); ++ break; ++ } ++ } ++ ++ return r; ++} ++ ++int dss_mgr_wait_for_go_ovl(struct omap_overlay *ovl) ++{ ++ unsigned long timeout = msecs_to_jiffies(500); ++ enum omap_channel channel; ++ struct overlay_cache_data *oc; ++ struct omap_dss_device *dssdev; ++ u32 irq; ++ int r; ++ int i; ++ ++ if (!ovl->manager || !ovl->manager->device) ++ return 0; ++ ++ dssdev = ovl->manager->device; ++ ++ if (dssdev->type == OMAP_DISPLAY_TYPE_VENC) { ++ irq = DISPC_IRQ_EVSYNC_ODD | DISPC_IRQ_EVSYNC_EVEN; ++ channel = OMAP_DSS_CHANNEL_DIGIT; ++ } else { ++ if (dssdev->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE) { ++ enum omap_dss_update_mode mode; ++ mode = dssdev->get_update_mode(dssdev); ++ if (mode != OMAP_DSS_UPDATE_AUTO) ++ return 0; ++ ++ irq = DISPC_IRQ_FRAMEDONE; ++ } else { ++ irq = DISPC_IRQ_VSYNC; ++ } ++ channel = OMAP_DSS_CHANNEL_LCD; ++ } ++ ++ oc = &dss_cache.overlay_cache[ovl->id]; ++ i = 0; ++ while (1) { ++ unsigned long flags; ++ bool shadow_dirty, dirty; ++ ++ spin_lock_irqsave(&dss_cache.lock, flags); ++ dirty = oc->dirty; ++ shadow_dirty = oc->shadow_dirty; ++ spin_unlock_irqrestore(&dss_cache.lock, flags); ++ ++ if (!dirty && !shadow_dirty) { ++ r = 0; ++ break; ++ } ++ ++ /* 4 iterations is the worst case: ++ * 1 - initial iteration, dirty = true (between VFP and VSYNC) ++ * 2 - first VSYNC, dirty = true ++ * 3 - dirty = false, shadow_dirty = true ++ * 4 - shadow_dirty = false */ ++ if (i++ == 3) { ++ DSSERR("ovl(%d)->wait_for_go() not finishing\n", ++ ovl->id); ++ r = 0; ++ break; ++ } ++ ++ r = omap_dispc_wait_for_irq_interruptible_timeout(irq, timeout); ++ if (r == -ERESTARTSYS) ++ break; ++ ++ if (r) { ++ DSSERR("ovl(%d)->wait_for_go() timeout\n", ovl->id); ++ break; ++ } ++ } ++ ++ return r; ++} ++ ++static int overlay_enabled(struct omap_overlay *ovl) ++{ ++ return ovl->info.enabled && ovl->manager && ovl->manager->device; ++} ++ ++/* Is rect1 a subset of rect2? */ ++static bool rectangle_subset(int x1, int y1, int w1, int h1, ++ int x2, int y2, int w2, int h2) ++{ ++ if (x1 < x2 || y1 < y2) ++ return false; ++ ++ if (x1 + w1 > x2 + w2) ++ return false; ++ ++ if (y1 + h1 > y2 + h2) ++ return false; ++ ++ return true; ++} ++ ++/* Do rect1 and rect2 overlap? */ ++static bool rectangle_intersects(int x1, int y1, int w1, int h1, ++ int x2, int y2, int w2, int h2) ++{ ++ if (x1 >= x2 + w2) ++ return false; ++ ++ if (x2 >= x1 + w1) ++ return false; ++ ++ if (y1 >= y2 + h2) ++ return false; ++ ++ if (y2 >= y1 + h1) ++ return false; ++ ++ return true; ++} ++ ++static bool dispc_is_overlay_scaled(struct overlay_cache_data *oc) ++{ ++ if (oc->out_width != 0 && oc->width != oc->out_width) ++ return true; ++ ++ if (oc->out_height != 0 && oc->height != oc->out_height) ++ return true; ++ ++ return false; ++} ++ ++static int configure_overlay(enum omap_plane plane) ++{ ++ struct overlay_cache_data *c; ++ struct manager_cache_data *mc; ++ u16 outw, outh; ++ u16 x, y, w, h; ++ u32 paddr; ++ int r; ++ ++ DSSDBGF("%d", plane); ++ ++ c = &dss_cache.overlay_cache[plane]; ++ ++ if (!c->enabled) { ++ dispc_enable_plane(plane, 0); ++ return 0; ++ } ++ ++ mc = &dss_cache.manager_cache[c->channel]; ++ ++ x = c->pos_x; ++ y = c->pos_y; ++ w = c->width; ++ h = c->height; ++ outw = c->out_width == 0 ? c->width : c->out_width; ++ outh = c->out_height == 0 ? c->height : c->out_height; ++ paddr = c->paddr; ++ ++ if (c->manual_update && mc->do_manual_update) { ++ unsigned bpp; ++ /* If the overlay is outside the update region, disable it */ ++ if (!rectangle_intersects(mc->x, mc->y, mc->w, mc->h, ++ x, y, outw, outh)) { ++ dispc_enable_plane(plane, 0); ++ return 0; ++ } ++ ++ switch (c->color_mode) { ++ case OMAP_DSS_COLOR_RGB16: ++ case OMAP_DSS_COLOR_ARGB16: ++ case OMAP_DSS_COLOR_YUV2: ++ case OMAP_DSS_COLOR_UYVY: ++ bpp = 16; ++ break; ++ ++ case OMAP_DSS_COLOR_RGB24P: ++ bpp = 24; ++ break; ++ ++ case OMAP_DSS_COLOR_RGB24U: ++ case OMAP_DSS_COLOR_ARGB32: ++ case OMAP_DSS_COLOR_RGBA32: ++ case OMAP_DSS_COLOR_RGBX32: ++ bpp = 32; ++ break; ++ ++ default: ++ BUG(); ++ } ++ ++ if (dispc_is_overlay_scaled(c)) { ++ /* If the overlay is scaled, the update area has ++ * already been enlarged to cover the whole overlay. We ++ * only need to adjust x/y here */ ++ x = c->pos_x - mc->x; ++ y = c->pos_y - mc->y; ++ } else { ++ if (mc->x > c->pos_x) { ++ x = 0; ++ w -= (mc->x - c->pos_x); ++ paddr += (mc->x - c->pos_x) * bpp / 8; ++ } else { ++ x = c->pos_x - mc->x; ++ } ++ ++ if (mc->y > c->pos_y) { ++ y = 0; ++ h -= (mc->y - c->pos_y); ++ paddr += (mc->y - c->pos_y) * c->screen_width * ++ bpp / 8; ++ } else { ++ y = c->pos_y - mc->y; ++ } ++ ++ if (mc->w < (x+w)) ++ w -= (x+w) - (mc->w); ++ ++ if (mc->h < (y+h)) ++ h -= (y+h) - (mc->h); ++ ++ outw = w; ++ outh = h; ++ } ++ } ++ ++ r = dispc_setup_plane(plane, ++ paddr, ++ c->screen_width, ++ x, y, ++ w, h, ++ outw, outh, ++ c->color_mode, ++ c->ilace, ++ c->rotation_type, ++ c->rotation, ++ c->mirror, ++ c->global_alpha); ++ ++ if (r) { ++ /* this shouldn't happen */ ++ DSSERR("dispc_setup_plane failed for ovl %d\n", plane); ++ dispc_enable_plane(plane, 0); ++ return r; ++ } ++ ++ dispc_enable_replication(plane, c->replication); ++ ++ dispc_set_burst_size(plane, c->burst_size); ++ dispc_setup_plane_fifo(plane, c->fifo_low, c->fifo_high); ++ ++ dispc_enable_plane(plane, 1); ++ ++ return 0; ++} ++ ++static void configure_manager(enum omap_channel channel) ++{ ++ struct manager_cache_data *c; ++ ++ DSSDBGF("%d", channel); ++ ++ c = &dss_cache.manager_cache[channel]; ++ ++ dispc_set_trans_key(channel, c->trans_key_type, c->trans_key); ++ dispc_enable_trans_key(channel, c->trans_enabled); ++ dispc_enable_alpha_blending(channel, c->alpha_enabled); ++} ++ ++/* configure_dispc() tries to write values from cache to shadow registers. ++ * It writes only to those managers/overlays that are not busy. ++ * returns 0 if everything could be written to shadow registers. ++ * returns 1 if not everything could be written to shadow registers. */ ++static int configure_dispc(void) ++{ ++ struct overlay_cache_data *oc; ++ struct manager_cache_data *mc; ++ const int num_ovls = ARRAY_SIZE(dss_cache.overlay_cache); ++ const int num_mgrs = ARRAY_SIZE(dss_cache.manager_cache); ++ int i; ++ int r; ++ bool mgr_busy[2]; ++ bool mgr_go[2]; ++ bool busy; ++ ++ r = 0; ++ busy = false; ++ ++ mgr_busy[0] = dispc_go_busy(0); ++ mgr_busy[1] = dispc_go_busy(1); ++ mgr_go[0] = false; ++ mgr_go[1] = false; ++ ++ /* Commit overlay settings */ ++ for (i = 0; i < num_ovls; ++i) { ++ oc = &dss_cache.overlay_cache[i]; ++ mc = &dss_cache.manager_cache[oc->channel]; ++ ++ if (!oc->dirty) ++ continue; ++ ++ if (oc->manual_update && !mc->do_manual_update) ++ continue; ++ ++ if (mgr_busy[oc->channel]) { ++ busy = true; ++ continue; ++ } ++ ++ r = configure_overlay(i); ++ if (r) ++ DSSERR("configure_overlay %d failed\n", i); ++ ++ oc->dirty = false; ++ oc->shadow_dirty = true; ++ mgr_go[oc->channel] = true; ++ } ++ ++ /* Commit manager settings */ ++ for (i = 0; i < num_mgrs; ++i) { ++ mc = &dss_cache.manager_cache[i]; ++ ++ if (!mc->dirty) ++ continue; ++ ++ if (mc->manual_update && !mc->do_manual_update) ++ continue; ++ ++ if (mgr_busy[i]) { ++ busy = true; ++ continue; ++ } ++ ++ configure_manager(i); ++ mc->dirty = false; ++ mc->shadow_dirty = true; ++ mgr_go[i] = true; ++ } ++ ++ /* set GO */ ++ for (i = 0; i < num_mgrs; ++i) { ++ mc = &dss_cache.manager_cache[i]; ++ ++ if (!mgr_go[i]) ++ continue; ++ ++ /* We don't need GO with manual update display. LCD iface will ++ * always be turned off after frame, and new settings will be ++ * taken in to use at next update */ ++ if (!mc->manual_upd_display) ++ dispc_go(i); ++ } ++ ++ if (busy) ++ r = 1; ++ else ++ r = 0; ++ ++ return r; ++} ++ ++/* Configure dispc for partial update. Return possibly modified update ++ * area */ ++void dss_setup_partial_planes(struct omap_dss_device *dssdev, ++ u16 *xi, u16 *yi, u16 *wi, u16 *hi) ++{ ++ struct overlay_cache_data *oc; ++ struct manager_cache_data *mc; ++ const int num_ovls = ARRAY_SIZE(dss_cache.overlay_cache); ++ struct omap_overlay_manager *mgr; ++ int i; ++ u16 x, y, w, h; ++ unsigned long flags; ++ ++ x = *xi; ++ y = *yi; ++ w = *wi; ++ h = *hi; ++ ++ DSSDBG("dispc_setup_partial_planes %d,%d %dx%d\n", ++ *xi, *yi, *wi, *hi); ++ ++ mgr = dssdev->manager; ++ ++ if (!mgr) { ++ DSSDBG("no manager\n"); ++ return; ++ } ++ ++ spin_lock_irqsave(&dss_cache.lock, flags); ++ ++ /* We need to show the whole overlay if it is scaled. So look for ++ * those, and make the update area larger if found. ++ * Also mark the overlay cache dirty */ ++ for (i = 0; i < num_ovls; ++i) { ++ unsigned x1, y1, x2, y2; ++ unsigned outw, outh; ++ ++ oc = &dss_cache.overlay_cache[i]; ++ ++ if (oc->channel != mgr->id) ++ continue; ++ ++ oc->dirty = true; ++ ++ if (!oc->enabled) ++ continue; ++ ++ if (!dispc_is_overlay_scaled(oc)) ++ continue; ++ ++ outw = oc->out_width == 0 ? oc->width : oc->out_width; ++ outh = oc->out_height == 0 ? oc->height : oc->out_height; ++ ++ /* is the overlay outside the update region? */ ++ if (!rectangle_intersects(x, y, w, h, ++ oc->pos_x, oc->pos_y, ++ outw, outh)) ++ continue; ++ ++ /* if the overlay totally inside the update region? */ ++ if (rectangle_subset(oc->pos_x, oc->pos_y, outw, outh, ++ x, y, w, h)) ++ continue; ++ ++ if (x > oc->pos_x) ++ x1 = oc->pos_x; ++ else ++ x1 = x; ++ ++ if (y > oc->pos_y) ++ y1 = oc->pos_y; ++ else ++ y1 = y; ++ ++ if ((x + w) < (oc->pos_x + outw)) ++ x2 = oc->pos_x + outw; ++ else ++ x2 = x + w; ++ ++ if ((y + h) < (oc->pos_y + outh)) ++ y2 = oc->pos_y + outh; ++ else ++ y2 = y + h; ++ ++ x = x1; ++ y = y1; ++ w = x2 - x1; ++ h = y2 - y1; ++ ++ DSSDBG("changing upd area due to ovl(%d) scaling %d,%d %dx%d\n", ++ i, x, y, w, h); ++ } ++ ++ mc = &dss_cache.manager_cache[mgr->id]; ++ mc->do_manual_update = true; ++ mc->x = x; ++ mc->y = y; ++ mc->w = w; ++ mc->h = h; ++ ++ configure_dispc(); ++ ++ mc->do_manual_update = false; ++ ++ spin_unlock_irqrestore(&dss_cache.lock, flags); ++ ++ *xi = x; ++ *yi = y; ++ *wi = w; ++ *hi = h; ++} ++ ++void dss_start_update(struct omap_dss_device *dssdev) ++{ ++ struct manager_cache_data *mc; ++ struct overlay_cache_data *oc; ++ const int num_ovls = ARRAY_SIZE(dss_cache.overlay_cache); ++ const int num_mgrs = ARRAY_SIZE(dss_cache.manager_cache); ++ struct omap_overlay_manager *mgr; ++ int i; ++ ++ mgr = dssdev->manager; ++ ++ for (i = 0; i < num_ovls; ++i) { ++ oc = &dss_cache.overlay_cache[i]; ++ if (oc->channel != mgr->id) ++ continue; ++ ++ oc->shadow_dirty = false; ++ } ++ ++ for (i = 0; i < num_mgrs; ++i) { ++ mc = &dss_cache.manager_cache[i]; ++ if (mgr->id != i) ++ continue; ++ ++ mc->shadow_dirty = false; ++ } ++ ++ dispc_enable_lcd_out(1); ++} ++ ++static void dss_apply_irq_handler(void *data, u32 mask) ++{ ++ struct manager_cache_data *mc; ++ struct overlay_cache_data *oc; ++ const int num_ovls = ARRAY_SIZE(dss_cache.overlay_cache); ++ const int num_mgrs = ARRAY_SIZE(dss_cache.manager_cache); ++ int i, r; ++ bool mgr_busy[2]; ++ ++ mgr_busy[0] = dispc_go_busy(0); ++ mgr_busy[1] = dispc_go_busy(1); ++ ++ spin_lock(&dss_cache.lock); ++ ++ for (i = 0; i < num_ovls; ++i) { ++ oc = &dss_cache.overlay_cache[i]; ++ if (!mgr_busy[oc->channel]) ++ oc->shadow_dirty = false; ++ } ++ ++ for (i = 0; i < num_mgrs; ++i) { ++ mc = &dss_cache.manager_cache[i]; ++ if (!mgr_busy[i]) ++ mc->shadow_dirty = false; ++ } ++ ++ r = configure_dispc(); ++ if (r == 1) ++ goto end; ++ ++ /* re-read busy flags */ ++ mgr_busy[0] = dispc_go_busy(0); ++ mgr_busy[1] = dispc_go_busy(1); ++ ++ /* keep running as long as there are busy managers, so that ++ * we can collect overlay-applied information */ ++ for (i = 0; i < num_mgrs; ++i) { ++ if (mgr_busy[i]) ++ goto end; ++ } ++ ++ omap_dispc_unregister_isr(dss_apply_irq_handler, NULL, ++ DISPC_IRQ_VSYNC | DISPC_IRQ_EVSYNC_ODD | ++ DISPC_IRQ_EVSYNC_EVEN); ++ dss_cache.irq_enabled = false; ++ ++end: ++ spin_unlock(&dss_cache.lock); ++} ++ ++static int omap_dss_mgr_apply(struct omap_overlay_manager *mgr) ++{ ++ struct overlay_cache_data *oc; ++ struct manager_cache_data *mc; ++ int i; ++ struct omap_overlay *ovl; ++ int num_planes_enabled = 0; ++ bool use_fifomerge; ++ unsigned long flags; ++ int r; ++ ++ DSSDBG("omap_dss_mgr_apply(%s)\n", mgr->name); ++ ++ spin_lock_irqsave(&dss_cache.lock, flags); ++ ++ /* Configure overlays */ ++ for (i = 0; i < omap_dss_get_num_overlays(); ++i) { ++ struct omap_dss_device *dssdev; ++ ++ ovl = omap_dss_get_overlay(i); ++ ++ if (!(ovl->caps & OMAP_DSS_OVL_CAP_DISPC)) ++ continue; ++ ++ oc = &dss_cache.overlay_cache[ovl->id]; ++ ++ if (!overlay_enabled(ovl)) { ++ if (oc->enabled) { ++ oc->enabled = false; ++ oc->dirty = true; ++ } ++ continue; ++ } ++ ++ if (!ovl->info_dirty) { ++ if (oc->enabled) ++ ++num_planes_enabled; ++ continue; ++ } ++ ++ dssdev = ovl->manager->device; ++ ++ if (dss_check_overlay(ovl, dssdev)) { ++ if (oc->enabled) { ++ oc->enabled = false; ++ oc->dirty = true; ++ } ++ continue; ++ } ++ ++ ovl->info_dirty = false; ++ oc->dirty = true; ++ ++ oc->paddr = ovl->info.paddr; ++ oc->vaddr = ovl->info.vaddr; ++ oc->screen_width = ovl->info.screen_width; ++ oc->width = ovl->info.width; ++ oc->height = ovl->info.height; ++ oc->color_mode = ovl->info.color_mode; ++ oc->rotation = ovl->info.rotation; ++ oc->rotation_type = ovl->info.rotation_type; ++ oc->mirror = ovl->info.mirror; ++ oc->pos_x = ovl->info.pos_x; ++ oc->pos_y = ovl->info.pos_y; ++ oc->out_width = ovl->info.out_width; ++ oc->out_height = ovl->info.out_height; ++ oc->global_alpha = ovl->info.global_alpha; ++ ++ oc->replication = ++ dss_use_replication(dssdev, ovl->info.color_mode); ++ ++ oc->ilace = dssdev->type == OMAP_DISPLAY_TYPE_VENC; ++ ++ oc->channel = ovl->manager->id; ++ ++ oc->enabled = true; ++ ++ oc->manual_update = ++ dssdev->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE && ++ dssdev->get_update_mode(dssdev) != OMAP_DSS_UPDATE_AUTO; ++ ++ ++num_planes_enabled; ++ } ++ ++ /* Configure managers */ ++ list_for_each_entry(mgr, &manager_list, list) { ++ struct omap_dss_device *dssdev; ++ ++ if (!(mgr->caps & OMAP_DSS_OVL_MGR_CAP_DISPC)) ++ continue; ++ ++ mc = &dss_cache.manager_cache[mgr->id]; ++ ++ if (mgr->device_changed) { ++ mgr->device_changed = false; ++ mgr->info_dirty = true; ++ } ++ ++ if (!mgr->info_dirty) ++ continue; ++ ++ if (!mgr->device) ++ continue; ++ ++ dssdev = mgr->device; ++ ++ mgr->info_dirty = false; ++ mc->dirty = true; ++ ++ mc->default_color = mgr->info.default_color; ++ mc->trans_key_type = mgr->info.trans_key_type; ++ mc->trans_key = mgr->info.trans_key; ++ mc->trans_enabled = mgr->info.trans_enabled; ++ mc->alpha_enabled = mgr->info.alpha_enabled; ++ ++ mc->manual_upd_display = ++ dssdev->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE; ++ ++ mc->manual_update = ++ dssdev->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE && ++ dssdev->get_update_mode(dssdev) != OMAP_DSS_UPDATE_AUTO; ++ } ++ ++ /* XXX TODO: Try to get fifomerge working. The problem is that it ++ * affects both managers, not individually but at the same time. This ++ * means the change has to be well synchronized. I guess the proper way ++ * is to have a two step process for fifo merge: ++ * fifomerge enable: ++ * 1. disable other planes, leaving one plane enabled ++ * 2. wait until the planes are disabled on HW ++ * 3. config merged fifo thresholds, enable fifomerge ++ * fifomerge disable: ++ * 1. config unmerged fifo thresholds, disable fifomerge ++ * 2. wait until fifo changes are in HW ++ * 3. enable planes ++ */ ++ use_fifomerge = false; ++ ++ /* Configure overlay fifos */ ++ for (i = 0; i < omap_dss_get_num_overlays(); ++i) { ++ struct omap_dss_device *dssdev; ++ u32 size; ++ ++ ovl = omap_dss_get_overlay(i); ++ ++ if (!(ovl->caps & OMAP_DSS_OVL_CAP_DISPC)) ++ continue; ++ ++ oc = &dss_cache.overlay_cache[ovl->id]; ++ ++ if (!oc->enabled) ++ continue; ++ ++ dssdev = ovl->manager->device; ++ ++ size = dispc_get_plane_fifo_size(ovl->id); ++ if (use_fifomerge) ++ size *= 3; ++ ++ switch (dssdev->type) { ++ case OMAP_DISPLAY_TYPE_DPI: ++ case OMAP_DISPLAY_TYPE_DBI: ++ case OMAP_DISPLAY_TYPE_SDI: ++ case OMAP_DISPLAY_TYPE_VENC: ++ default_get_overlay_fifo_thresholds(ovl->id, size, ++ &oc->burst_size, &oc->fifo_low, ++ &oc->fifo_high); ++ break; ++#ifdef CONFIG_OMAP2_DSS_DSI ++ case OMAP_DISPLAY_TYPE_DSI: ++ dsi_get_overlay_fifo_thresholds(ovl->id, size, ++ &oc->burst_size, &oc->fifo_low, ++ &oc->fifo_high); ++ break; ++#endif ++ default: ++ BUG(); ++ } ++ } ++ ++ r = 0; ++ dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1); ++ if (!dss_cache.irq_enabled) { ++ r = omap_dispc_register_isr(dss_apply_irq_handler, NULL, ++ DISPC_IRQ_VSYNC | DISPC_IRQ_EVSYNC_ODD | ++ DISPC_IRQ_EVSYNC_EVEN); ++ dss_cache.irq_enabled = true; ++ } ++ configure_dispc(); ++ dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1); ++ ++ spin_unlock_irqrestore(&dss_cache.lock, flags); ++ ++ return r; ++} ++ ++static int dss_check_manager(struct omap_overlay_manager *mgr) ++{ ++ /* OMAP supports only graphics source transparency color key and alpha ++ * blending simultaneously. See TRM 15.4.2.4.2.2 Alpha Mode */ ++ ++ if (mgr->info.alpha_enabled && mgr->info.trans_enabled && ++ mgr->info.trans_key_type != OMAP_DSS_COLOR_KEY_GFX_DST) ++ return -EINVAL; ++ ++ return 0; ++} ++ ++static int omap_dss_mgr_set_info(struct omap_overlay_manager *mgr, ++ struct omap_overlay_manager_info *info) ++{ ++ int r; ++ struct omap_overlay_manager_info old_info; ++ ++ old_info = mgr->info; ++ mgr->info = *info; ++ ++ r = dss_check_manager(mgr); ++ if (r) { ++ mgr->info = old_info; ++ return r; ++ } ++ ++ mgr->info_dirty = true; ++ ++ return 0; ++} ++ ++static void omap_dss_mgr_get_info(struct omap_overlay_manager *mgr, ++ struct omap_overlay_manager_info *info) ++{ ++ *info = mgr->info; ++} ++ ++static void omap_dss_add_overlay_manager(struct omap_overlay_manager *manager) ++{ ++ ++num_managers; ++ list_add_tail(&manager->list, &manager_list); ++} ++ ++int dss_init_overlay_managers(struct platform_device *pdev) ++{ ++ int i, r; ++ ++ spin_lock_init(&dss_cache.lock); ++ ++ INIT_LIST_HEAD(&manager_list); ++ ++ num_managers = 0; ++ ++ for (i = 0; i < 2; ++i) { ++ struct omap_overlay_manager *mgr; ++ mgr = kzalloc(sizeof(*mgr), GFP_KERNEL); ++ ++ BUG_ON(mgr == NULL); ++ ++ switch (i) { ++ case 0: ++ mgr->name = "lcd"; ++ mgr->id = OMAP_DSS_CHANNEL_LCD; ++ mgr->supported_displays = ++ OMAP_DISPLAY_TYPE_DPI | OMAP_DISPLAY_TYPE_DBI | ++ OMAP_DISPLAY_TYPE_SDI | OMAP_DISPLAY_TYPE_DSI; ++ break; ++ case 1: ++ mgr->name = "tv"; ++ mgr->id = OMAP_DSS_CHANNEL_DIGIT; ++ mgr->supported_displays = OMAP_DISPLAY_TYPE_VENC; ++ break; ++ } ++ ++ mgr->set_device = &omap_dss_set_device; ++ mgr->unset_device = &omap_dss_unset_device; ++ mgr->apply = &omap_dss_mgr_apply; ++ mgr->set_manager_info = &omap_dss_mgr_set_info; ++ mgr->get_manager_info = &omap_dss_mgr_get_info; ++ mgr->wait_for_go = &dss_mgr_wait_for_go; ++ ++ mgr->caps = OMAP_DSS_OVL_MGR_CAP_DISPC; ++ ++ dss_overlay_setup_dispc_manager(mgr); ++ ++ omap_dss_add_overlay_manager(mgr); ++ ++ r = kobject_init_and_add(&mgr->kobj, &manager_ktype, ++ &pdev->dev.kobj, "manager%d", i); ++ ++ if (r) { ++ DSSERR("failed to create sysfs file\n"); ++ continue; ++ } ++ } ++ ++#ifdef L4_EXAMPLE ++ { ++ int omap_dss_mgr_apply_l4(struct omap_overlay_manager *mgr) ++ { ++ DSSDBG("omap_dss_mgr_apply_l4(%s)\n", mgr->name); ++ ++ return 0; ++ } ++ ++ struct omap_overlay_manager *mgr; ++ mgr = kzalloc(sizeof(*mgr), GFP_KERNEL); ++ ++ BUG_ON(mgr == NULL); ++ ++ mgr->name = "l4"; ++ mgr->supported_displays = ++ OMAP_DISPLAY_TYPE_DBI | OMAP_DISPLAY_TYPE_DSI; ++ ++ mgr->set_device = &omap_dss_set_device; ++ mgr->unset_device = &omap_dss_unset_device; ++ mgr->apply = &omap_dss_mgr_apply_l4; ++ mgr->set_manager_info = &omap_dss_mgr_set_info; ++ mgr->get_manager_info = &omap_dss_mgr_get_info; ++ ++ dss_overlay_setup_l4_manager(mgr); ++ ++ omap_dss_add_overlay_manager(mgr); ++ ++ r = kobject_init_and_add(&mgr->kobj, &manager_ktype, ++ &pdev->dev.kobj, "managerl4"); ++ ++ if (r) ++ DSSERR("failed to create sysfs file\n"); ++ } ++#endif ++ ++ return 0; ++} ++ ++void dss_uninit_overlay_managers(struct platform_device *pdev) ++{ ++ struct omap_overlay_manager *mgr; ++ ++ while (!list_empty(&manager_list)) { ++ mgr = list_first_entry(&manager_list, ++ struct omap_overlay_manager, list); ++ list_del(&mgr->list); ++ kobject_del(&mgr->kobj); ++ kobject_put(&mgr->kobj); ++ kfree(mgr); ++ } ++ ++ num_managers = 0; ++} ++ ++int omap_dss_get_num_overlay_managers(void) ++{ ++ return num_managers; ++} ++EXPORT_SYMBOL(omap_dss_get_num_overlay_managers); ++ ++struct omap_overlay_manager *omap_dss_get_overlay_manager(int num) ++{ ++ int i = 0; ++ struct omap_overlay_manager *mgr; ++ ++ list_for_each_entry(mgr, &manager_list, list) { ++ if (i++ == num) ++ return mgr; ++ } ++ ++ return NULL; ++} ++EXPORT_SYMBOL(omap_dss_get_overlay_manager); ++ +diff --git a/drivers/video/omap2/dss/overlay.c b/drivers/video/omap2/dss/overlay.c +new file mode 100644 +index 0000000..c7cb81b +--- /dev/null ++++ b/drivers/video/omap2/dss/overlay.c +@@ -0,0 +1,673 @@ ++/* ++ * linux/drivers/video/omap2/dss/overlay.c ++ * ++ * Copyright (C) 2009 Nokia Corporation ++ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com> ++ * ++ * Some code and ideas taken from drivers/video/omap/ driver ++ * by Imre Deak. ++ * ++ * This program is free software; you can redistribute it and/or modify it ++ * under the terms of the GNU General Public License version 2 as published by ++ * the Free Software Foundation. ++ * ++ * This program is distributed in the hope that it will be useful, but WITHOUT ++ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or ++ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for ++ * more details. ++ * ++ * You should have received a copy of the GNU General Public License along with ++ * this program. If not, see <http://www.gnu.org/licenses/>. ++ */ ++ ++#define DSS_SUBSYS_NAME "OVERLAY" ++ ++#include <linux/kernel.h> ++#include <linux/module.h> ++#include <linux/err.h> ++#include <linux/sysfs.h> ++#include <linux/kobject.h> ++#include <linux/platform_device.h> ++#include <linux/delay.h> ++ ++#include <mach/display.h> ++ ++#include "dss.h" ++ ++static int num_overlays; ++static struct list_head overlay_list; ++ ++static ssize_t overlay_name_show(struct omap_overlay *ovl, char *buf) ++{ ++ return snprintf(buf, PAGE_SIZE, "%s\n", ovl->name); ++} ++ ++static ssize_t overlay_manager_show(struct omap_overlay *ovl, char *buf) ++{ ++ return snprintf(buf, PAGE_SIZE, "%s\n", ++ ovl->manager ? ovl->manager->name : "<none>"); ++} ++ ++static ssize_t overlay_manager_store(struct omap_overlay *ovl, const char *buf, ++ size_t size) ++{ ++ int i, r; ++ struct omap_overlay_manager *mgr = NULL; ++ struct omap_overlay_manager *old_mgr; ++ int len = size; ++ ++ if (buf[size-1] == '\n') ++ --len; ++ ++ if (len > 0) { ++ for (i = 0; i < omap_dss_get_num_overlay_managers(); ++i) { ++ mgr = omap_dss_get_overlay_manager(i); ++ ++ if (strncmp(buf, mgr->name, len) == 0) ++ break; ++ ++ mgr = NULL; ++ } ++ } ++ ++ if (len > 0 && mgr == NULL) ++ return -EINVAL; ++ ++ if (mgr) ++ DSSDBG("manager %s found\n", mgr->name); ++ ++ if (mgr == ovl->manager) ++ return size; ++ ++ old_mgr = ovl->manager; ++ ++ /* detach old manager */ ++ if (old_mgr) { ++ r = ovl->unset_manager(ovl); ++ if (r) { ++ DSSERR("detach failed\n"); ++ return r; ++ } ++ ++ r = old_mgr->apply(old_mgr); ++ if (r) ++ return r; ++ } ++ ++ if (mgr) { ++ r = ovl->set_manager(ovl, mgr); ++ if (r) { ++ DSSERR("Failed to attach overlay\n"); ++ return r; ++ } ++ ++ r = mgr->apply(mgr); ++ if (r) ++ return r; ++ } ++ ++ return size; ++} ++ ++static ssize_t overlay_input_size_show(struct omap_overlay *ovl, char *buf) ++{ ++ return snprintf(buf, PAGE_SIZE, "%d,%d\n", ++ ovl->info.width, ovl->info.height); ++} ++ ++static ssize_t overlay_screen_width_show(struct omap_overlay *ovl, char *buf) ++{ ++ return snprintf(buf, PAGE_SIZE, "%d\n", ovl->info.screen_width); ++} ++ ++static ssize_t overlay_position_show(struct omap_overlay *ovl, char *buf) ++{ ++ return snprintf(buf, PAGE_SIZE, "%d,%d\n", ++ ovl->info.pos_x, ovl->info.pos_y); ++} ++ ++static ssize_t overlay_position_store(struct omap_overlay *ovl, ++ const char *buf, size_t size) ++{ ++ int r; ++ char *last; ++ struct omap_overlay_info info; ++ ++ ovl->get_overlay_info(ovl, &info); ++ ++ info.pos_x = simple_strtoul(buf, &last, 10); ++ ++last; ++ if (last - buf >= size) ++ return -EINVAL; ++ ++ info.pos_y = simple_strtoul(last, &last, 10); ++ ++ r = ovl->set_overlay_info(ovl, &info); ++ if (r) ++ return r; ++ ++ if (ovl->manager) { ++ r = ovl->manager->apply(ovl->manager); ++ if (r) ++ return r; ++ } ++ ++ return size; ++} ++ ++static ssize_t overlay_output_size_show(struct omap_overlay *ovl, char *buf) ++{ ++ return snprintf(buf, PAGE_SIZE, "%d,%d\n", ++ ovl->info.out_width, ovl->info.out_height); ++} ++ ++static ssize_t overlay_output_size_store(struct omap_overlay *ovl, ++ const char *buf, size_t size) ++{ ++ int r; ++ char *last; ++ struct omap_overlay_info info; ++ ++ ovl->get_overlay_info(ovl, &info); ++ ++ info.out_width = simple_strtoul(buf, &last, 10); ++ ++last; ++ if (last - buf >= size) ++ return -EINVAL; ++ ++ info.out_height = simple_strtoul(last, &last, 10); ++ ++ r = ovl->set_overlay_info(ovl, &info); ++ if (r) ++ return r; ++ ++ if (ovl->manager) { ++ r = ovl->manager->apply(ovl->manager); ++ if (r) ++ return r; ++ } ++ ++ return size; ++} ++ ++static ssize_t overlay_enabled_show(struct omap_overlay *ovl, char *buf) ++{ ++ return snprintf(buf, PAGE_SIZE, "%d\n", ovl->info.enabled); ++} ++ ++static ssize_t overlay_enabled_store(struct omap_overlay *ovl, const char *buf, ++ size_t size) ++{ ++ int r; ++ struct omap_overlay_info info; ++ ++ ovl->get_overlay_info(ovl, &info); ++ ++ info.enabled = simple_strtoul(buf, NULL, 10); ++ ++ r = ovl->set_overlay_info(ovl, &info); ++ if (r) ++ return r; ++ ++ if (ovl->manager) { ++ r = ovl->manager->apply(ovl->manager); ++ if (r) ++ return r; ++ } ++ ++ return size; ++} ++ ++static ssize_t overlay_global_alpha_show(struct omap_overlay *ovl, char *buf) ++{ ++ return snprintf(buf, PAGE_SIZE, "%d\n", ++ ovl->info.global_alpha); ++} ++ ++static ssize_t overlay_global_alpha_store(struct omap_overlay *ovl, ++ const char *buf, size_t size) ++{ ++ int r; ++ struct omap_overlay_info info; ++ ++ ovl->get_overlay_info(ovl, &info); ++ ++ /* Video1 plane does not support global alpha ++ * to always make it 255 completely opaque ++ */ ++ if (ovl->id == OMAP_DSS_VIDEO1) ++ info.global_alpha = 255; ++ else ++ info.global_alpha = simple_strtoul(buf, NULL, 10); ++ ++ r = ovl->set_overlay_info(ovl, &info); ++ if (r) ++ return r; ++ ++ if (ovl->manager) { ++ r = ovl->manager->apply(ovl->manager); ++ if (r) ++ return r; ++ } ++ ++ return size; ++} ++ ++struct overlay_attribute { ++ struct attribute attr; ++ ssize_t (*show)(struct omap_overlay *, char *); ++ ssize_t (*store)(struct omap_overlay *, const char *, size_t); ++}; ++ ++#define OVERLAY_ATTR(_name, _mode, _show, _store) \ ++ struct overlay_attribute overlay_attr_##_name = \ ++ __ATTR(_name, _mode, _show, _store) ++ ++static OVERLAY_ATTR(name, S_IRUGO, overlay_name_show, NULL); ++static OVERLAY_ATTR(manager, S_IRUGO|S_IWUSR, ++ overlay_manager_show, overlay_manager_store); ++static OVERLAY_ATTR(input_size, S_IRUGO, overlay_input_size_show, NULL); ++static OVERLAY_ATTR(screen_width, S_IRUGO, overlay_screen_width_show, NULL); ++static OVERLAY_ATTR(position, S_IRUGO|S_IWUSR, ++ overlay_position_show, overlay_position_store); ++static OVERLAY_ATTR(output_size, S_IRUGO|S_IWUSR, ++ overlay_output_size_show, overlay_output_size_store); ++static OVERLAY_ATTR(enabled, S_IRUGO|S_IWUSR, ++ overlay_enabled_show, overlay_enabled_store); ++static OVERLAY_ATTR(global_alpha, S_IRUGO|S_IWUSR, ++ overlay_global_alpha_show, overlay_global_alpha_store); ++ ++static struct attribute *overlay_sysfs_attrs[] = { ++ &overlay_attr_name.attr, ++ &overlay_attr_manager.attr, ++ &overlay_attr_input_size.attr, ++ &overlay_attr_screen_width.attr, ++ &overlay_attr_position.attr, ++ &overlay_attr_output_size.attr, ++ &overlay_attr_enabled.attr, ++ &overlay_attr_global_alpha.attr, ++ NULL ++}; ++ ++static ssize_t overlay_attr_show(struct kobject *kobj, struct attribute *attr, ++ char *buf) ++{ ++ struct omap_overlay *overlay; ++ struct overlay_attribute *overlay_attr; ++ ++ overlay = container_of(kobj, struct omap_overlay, kobj); ++ overlay_attr = container_of(attr, struct overlay_attribute, attr); ++ ++ if (!overlay_attr->show) ++ return -ENOENT; ++ ++ return overlay_attr->show(overlay, buf); ++} ++ ++static ssize_t overlay_attr_store(struct kobject *kobj, struct attribute *attr, ++ const char *buf, size_t size) ++{ ++ struct omap_overlay *overlay; ++ struct overlay_attribute *overlay_attr; ++ ++ overlay = container_of(kobj, struct omap_overlay, kobj); ++ overlay_attr = container_of(attr, struct overlay_attribute, attr); ++ ++ if (!overlay_attr->store) ++ return -ENOENT; ++ ++ return overlay_attr->store(overlay, buf, size); ++} ++ ++static struct sysfs_ops overlay_sysfs_ops = { ++ .show = overlay_attr_show, ++ .store = overlay_attr_store, ++}; ++ ++static struct kobj_type overlay_ktype = { ++ .sysfs_ops = &overlay_sysfs_ops, ++ .default_attrs = overlay_sysfs_attrs, ++}; ++ ++/* Check if overlay parameters are compatible with display */ ++int dss_check_overlay(struct omap_overlay *ovl, struct omap_dss_device *dssdev) ++{ ++ struct omap_overlay_info *info; ++ u16 outw, outh; ++ u16 dw, dh; ++ ++ if (!dssdev) ++ return 0; ++ ++ if (!ovl->info.enabled) ++ return 0; ++ ++ info = &ovl->info; ++ ++ if (info->paddr == 0) { ++ DSSDBG("check_overlay failed: paddr 0\n"); ++ return -EINVAL; ++ } ++ ++ dssdev->get_resolution(dssdev, &dw, &dh); ++ ++ DSSDBG("check_overlay %d: (%d,%d %dx%d -> %dx%d) disp (%dx%d)\n", ++ ovl->id, ++ info->pos_x, info->pos_y, ++ info->width, info->height, ++ info->out_width, info->out_height, ++ dw, dh); ++ ++ if ((ovl->caps & OMAP_DSS_OVL_CAP_SCALE) == 0) { ++ outw = info->width; ++ outh = info->height; ++ } else { ++ if (info->out_width == 0) ++ outw = info->width; ++ else ++ outw = info->out_width; ++ ++ if (info->out_height == 0) ++ outh = info->height; ++ else ++ outh = info->out_height; ++ } ++ ++ if (dw < info->pos_x + outw) { ++ DSSDBG("check_overlay failed 1: %d < %d + %d\n", ++ dw, info->pos_x, outw); ++ return -EINVAL; ++ } ++ ++ if (dh < info->pos_y + outh) { ++ DSSDBG("check_overlay failed 2: %d < %d + %d\n", ++ dh, info->pos_y, outh); ++ return -EINVAL; ++ } ++ ++ if ((ovl->supported_modes & info->color_mode) == 0) { ++ DSSERR("overlay doesn't support mode %d\n", info->color_mode); ++ return -EINVAL; ++ } ++ ++ return 0; ++} ++ ++static int dss_ovl_set_overlay_info(struct omap_overlay *ovl, ++ struct omap_overlay_info *info) ++{ ++ int r; ++ struct omap_overlay_info old_info; ++ ++ old_info = ovl->info; ++ ovl->info = *info; ++ ++ if (ovl->manager) { ++ r = dss_check_overlay(ovl, ovl->manager->device); ++ if (r) { ++ ovl->info = old_info; ++ return r; ++ } ++ } ++ ++ ovl->info_dirty = true; ++ ++ return 0; ++} ++ ++static void dss_ovl_get_overlay_info(struct omap_overlay *ovl, ++ struct omap_overlay_info *info) ++{ ++ *info = ovl->info; ++} ++ ++static int dss_ovl_wait_for_go(struct omap_overlay *ovl) ++{ ++ return dss_mgr_wait_for_go_ovl(ovl); ++} ++ ++static int omap_dss_set_manager(struct omap_overlay *ovl, ++ struct omap_overlay_manager *mgr) ++{ ++ if (!mgr) ++ return -EINVAL; ++ ++ if (ovl->manager) { ++ DSSERR("overlay '%s' already has a manager '%s'\n", ++ ovl->name, ovl->manager->name); ++ return -EINVAL; ++ } ++ ++ if (ovl->info.enabled) { ++ DSSERR("overlay has to be disabled to change the manager\n"); ++ return -EINVAL; ++ } ++ ++ ovl->manager = mgr; ++ ++ dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1); ++ /* XXX: on manual update display, in auto update mode, a bug happens ++ * here. When an overlay is first enabled on LCD, then it's disabled, ++ * and the manager is changed to TV, we sometimes get SYNC_LOST_DIGIT ++ * errors. Waiting before changing the channel_out fixes it. I'm ++ * guessing that the overlay is still somehow being used for the LCD, ++ * but I don't understand how or why. */ ++ msleep(40); ++ dispc_set_channel_out(ovl->id, mgr->id); ++ dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1); ++ ++ return 0; ++} ++ ++static int omap_dss_unset_manager(struct omap_overlay *ovl) ++{ ++ int r; ++ ++ if (!ovl->manager) { ++ DSSERR("failed to detach overlay: manager not set\n"); ++ return -EINVAL; ++ } ++ ++ if (ovl->info.enabled) { ++ DSSERR("overlay has to be disabled to unset the manager\n"); ++ return -EINVAL; ++ } ++ ++ r = ovl->wait_for_go(ovl); ++ if (r) ++ return r; ++ ++ ovl->manager = NULL; ++ ++ return 0; ++} ++ ++int omap_dss_get_num_overlays(void) ++{ ++ return num_overlays; ++} ++EXPORT_SYMBOL(omap_dss_get_num_overlays); ++ ++struct omap_overlay *omap_dss_get_overlay(int num) ++{ ++ int i = 0; ++ struct omap_overlay *ovl; ++ ++ list_for_each_entry(ovl, &overlay_list, list) { ++ if (i++ == num) ++ return ovl; ++ } ++ ++ return NULL; ++} ++EXPORT_SYMBOL(omap_dss_get_overlay); ++ ++static void omap_dss_add_overlay(struct omap_overlay *overlay) ++{ ++ ++num_overlays; ++ list_add_tail(&overlay->list, &overlay_list); ++} ++ ++static struct omap_overlay *dispc_overlays[3]; ++ ++void dss_overlay_setup_dispc_manager(struct omap_overlay_manager *mgr) ++{ ++ mgr->num_overlays = 3; ++ mgr->overlays = dispc_overlays; ++} ++ ++#ifdef L4_EXAMPLE ++static struct omap_overlay *l4_overlays[1]; ++void dss_overlay_setup_l4_manager(struct omap_overlay_manager *mgr) ++{ ++ mgr->num_overlays = 1; ++ mgr->overlays = l4_overlays; ++} ++#endif ++ ++void dss_init_overlays(struct platform_device *pdev) ++{ ++ int i, r; ++ ++ INIT_LIST_HEAD(&overlay_list); ++ ++ num_overlays = 0; ++ ++ for (i = 0; i < 3; ++i) { ++ struct omap_overlay *ovl; ++ ovl = kzalloc(sizeof(*ovl), GFP_KERNEL); ++ ++ BUG_ON(ovl == NULL); ++ ++ switch (i) { ++ case 0: ++ ovl->name = "gfx"; ++ ovl->id = OMAP_DSS_GFX; ++ ovl->supported_modes = OMAP_DSS_COLOR_GFX_OMAP3; ++ ovl->caps = OMAP_DSS_OVL_CAP_DISPC; ++ ovl->info.global_alpha = 255; ++ break; ++ case 1: ++ ovl->name = "vid1"; ++ ovl->id = OMAP_DSS_VIDEO1; ++ ovl->supported_modes = OMAP_DSS_COLOR_VID_OMAP3; ++ ovl->caps = OMAP_DSS_OVL_CAP_SCALE | ++ OMAP_DSS_OVL_CAP_DISPC; ++ ovl->info.global_alpha = 255; ++ break; ++ case 2: ++ ovl->name = "vid2"; ++ ovl->id = OMAP_DSS_VIDEO2; ++ ovl->supported_modes = OMAP_DSS_COLOR_VID_OMAP3; ++ ovl->caps = OMAP_DSS_OVL_CAP_SCALE | ++ OMAP_DSS_OVL_CAP_DISPC; ++ ovl->info.global_alpha = 255; ++ break; ++ } ++ ++ ovl->set_manager = &omap_dss_set_manager; ++ ovl->unset_manager = &omap_dss_unset_manager; ++ ovl->set_overlay_info = &dss_ovl_set_overlay_info; ++ ovl->get_overlay_info = &dss_ovl_get_overlay_info; ++ ovl->wait_for_go = &dss_ovl_wait_for_go; ++ ++ omap_dss_add_overlay(ovl); ++ ++ r = kobject_init_and_add(&ovl->kobj, &overlay_ktype, ++ &pdev->dev.kobj, "overlay%d", i); ++ ++ if (r) { ++ DSSERR("failed to create sysfs file\n"); ++ continue; ++ } ++ ++ dispc_overlays[i] = ovl; ++ } ++ ++#ifdef L4_EXAMPLE ++ { ++ struct omap_overlay *ovl; ++ ovl = kzalloc(sizeof(*ovl), GFP_KERNEL); ++ ++ BUG_ON(ovl == NULL); ++ ++ ovl->name = "l4"; ++ ovl->supported_modes = OMAP_DSS_COLOR_RGB24U; ++ ++ ovl->set_manager = &omap_dss_set_manager; ++ ovl->unset_manager = &omap_dss_unset_manager; ++ ovl->set_overlay_info = &dss_ovl_set_overlay_info; ++ ovl->get_overlay_info = &dss_ovl_get_overlay_info; ++ ++ omap_dss_add_overlay(ovl); ++ ++ r = kobject_init_and_add(&ovl->kobj, &overlay_ktype, ++ &pdev->dev.kobj, "overlayl4"); ++ ++ if (r) ++ DSSERR("failed to create sysfs file\n"); ++ ++ l4_overlays[0] = ovl; ++ } ++#endif ++} ++ ++/* connect overlays to the new device, if not already connected. if force ++ * selected, connect always. */ ++void dss_recheck_connections(struct omap_dss_device *dssdev, bool force) ++{ ++ int i; ++ struct omap_overlay_manager *lcd_mgr; ++ struct omap_overlay_manager *tv_mgr; ++ struct omap_overlay_manager *mgr = NULL; ++ ++ lcd_mgr = omap_dss_get_overlay_manager(OMAP_DSS_OVL_MGR_LCD); ++ tv_mgr = omap_dss_get_overlay_manager(OMAP_DSS_OVL_MGR_TV); ++ ++ if (dssdev->type != OMAP_DISPLAY_TYPE_VENC) { ++ if (!lcd_mgr->device || force) { ++ if (lcd_mgr->device) ++ lcd_mgr->unset_device(lcd_mgr); ++ lcd_mgr->set_device(lcd_mgr, dssdev); ++ mgr = lcd_mgr; ++ } ++ } ++ ++ if (dssdev->type == OMAP_DISPLAY_TYPE_VENC) { ++ if (!tv_mgr->device || force) { ++ if (tv_mgr->device) ++ tv_mgr->unset_device(tv_mgr); ++ tv_mgr->set_device(tv_mgr, dssdev); ++ mgr = tv_mgr; ++ } ++ } ++ ++ if (mgr) { ++ for (i = 0; i < 3; i++) { ++ struct omap_overlay *ovl; ++ ovl = omap_dss_get_overlay(i); ++ if (!ovl->manager || force) { ++ if (ovl->manager) ++ omap_dss_unset_manager(ovl); ++ omap_dss_set_manager(ovl, mgr); ++ } ++ } ++ } ++} ++ ++void dss_uninit_overlays(struct platform_device *pdev) ++{ ++ struct omap_overlay *ovl; ++ ++ while (!list_empty(&overlay_list)) { ++ ovl = list_first_entry(&overlay_list, ++ struct omap_overlay, list); ++ list_del(&ovl->list); ++ kobject_del(&ovl->kobj); ++ kobject_put(&ovl->kobj); ++ kfree(ovl); ++ } ++ ++ num_overlays = 0; ++} ++ +diff --git a/drivers/video/omap2/dss/rfbi.c b/drivers/video/omap2/dss/rfbi.c +new file mode 100644 +index 0000000..9dd2349 +--- /dev/null ++++ b/drivers/video/omap2/dss/rfbi.c +@@ -0,0 +1,1310 @@ ++/* ++ * linux/drivers/video/omap2/dss/rfbi.c ++ * ++ * Copyright (C) 2009 Nokia Corporation ++ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com> ++ * ++ * Some code and ideas taken from drivers/video/omap/ driver ++ * by Imre Deak. ++ * ++ * This program is free software; you can redistribute it and/or modify it ++ * under the terms of the GNU General Public License version 2 as published by ++ * the Free Software Foundation. ++ * ++ * This program is distributed in the hope that it will be useful, but WITHOUT ++ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or ++ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for ++ * more details. ++ * ++ * You should have received a copy of the GNU General Public License along with ++ * this program. If not, see <http://www.gnu.org/licenses/>. ++ */ ++ ++#define DSS_SUBSYS_NAME "RFBI" ++ ++#include <linux/kernel.h> ++#include <linux/dma-mapping.h> ++#include <linux/vmalloc.h> ++#include <linux/clk.h> ++#include <linux/io.h> ++#include <linux/delay.h> ++#include <linux/kfifo.h> ++#include <linux/ktime.h> ++#include <linux/hrtimer.h> ++#include <linux/seq_file.h> ++ ++#include <mach/board.h> ++#include <mach/display.h> ++#include "dss.h" ++ ++/*#define MEASURE_PERF*/ ++ ++#define RFBI_BASE 0x48050800 ++ ++struct rfbi_reg { u16 idx; }; ++ ++#define RFBI_REG(idx) ((const struct rfbi_reg) { idx }) ++ ++#define RFBI_REVISION RFBI_REG(0x0000) ++#define RFBI_SYSCONFIG RFBI_REG(0x0010) ++#define RFBI_SYSSTATUS RFBI_REG(0x0014) ++#define RFBI_CONTROL RFBI_REG(0x0040) ++#define RFBI_PIXEL_CNT RFBI_REG(0x0044) ++#define RFBI_LINE_NUMBER RFBI_REG(0x0048) ++#define RFBI_CMD RFBI_REG(0x004c) ++#define RFBI_PARAM RFBI_REG(0x0050) ++#define RFBI_DATA RFBI_REG(0x0054) ++#define RFBI_READ RFBI_REG(0x0058) ++#define RFBI_STATUS RFBI_REG(0x005c) ++ ++#define RFBI_CONFIG(n) RFBI_REG(0x0060 + (n)*0x18) ++#define RFBI_ONOFF_TIME(n) RFBI_REG(0x0064 + (n)*0x18) ++#define RFBI_CYCLE_TIME(n) RFBI_REG(0x0068 + (n)*0x18) ++#define RFBI_DATA_CYCLE1(n) RFBI_REG(0x006c + (n)*0x18) ++#define RFBI_DATA_CYCLE2(n) RFBI_REG(0x0070 + (n)*0x18) ++#define RFBI_DATA_CYCLE3(n) RFBI_REG(0x0074 + (n)*0x18) ++ ++#define RFBI_VSYNC_WIDTH RFBI_REG(0x0090) ++#define RFBI_HSYNC_WIDTH RFBI_REG(0x0094) ++ ++#define RFBI_CMD_FIFO_LEN_BYTES (16 * sizeof(struct update_param)) ++ ++#define REG_FLD_MOD(idx, val, start, end) \ ++ rfbi_write_reg(idx, FLD_MOD(rfbi_read_reg(idx), val, start, end)) ++ ++/* To work around an RFBI transfer rate limitation */ ++#define OMAP_RFBI_RATE_LIMIT 1 ++ ++enum omap_rfbi_cycleformat { ++ OMAP_DSS_RFBI_CYCLEFORMAT_1_1 = 0, ++ OMAP_DSS_RFBI_CYCLEFORMAT_2_1 = 1, ++ OMAP_DSS_RFBI_CYCLEFORMAT_3_1 = 2, ++ OMAP_DSS_RFBI_CYCLEFORMAT_3_2 = 3, ++}; ++ ++enum omap_rfbi_datatype { ++ OMAP_DSS_RFBI_DATATYPE_12 = 0, ++ OMAP_DSS_RFBI_DATATYPE_16 = 1, ++ OMAP_DSS_RFBI_DATATYPE_18 = 2, ++ OMAP_DSS_RFBI_DATATYPE_24 = 3, ++}; ++ ++enum omap_rfbi_parallelmode { ++ OMAP_DSS_RFBI_PARALLELMODE_8 = 0, ++ OMAP_DSS_RFBI_PARALLELMODE_9 = 1, ++ OMAP_DSS_RFBI_PARALLELMODE_12 = 2, ++ OMAP_DSS_RFBI_PARALLELMODE_16 = 3, ++}; ++ ++enum update_cmd { ++ RFBI_CMD_UPDATE = 0, ++ RFBI_CMD_SYNC = 1, ++}; ++ ++static int rfbi_convert_timings(struct rfbi_timings *t); ++static void rfbi_get_clk_info(u32 *clk_period, u32 *max_clk_div); ++static void process_cmd_fifo(void); ++ ++static struct { ++ void __iomem *base; ++ ++ unsigned long l4_khz; ++ ++ enum omap_rfbi_datatype datatype; ++ enum omap_rfbi_parallelmode parallelmode; ++ ++ enum omap_rfbi_te_mode te_mode; ++ int te_enabled; ++ ++ void (*framedone_callback)(void *data); ++ void *framedone_callback_data; ++ ++ struct omap_dss_device *dssdev[2]; ++ ++ struct kfifo *cmd_fifo; ++ spinlock_t cmd_lock; ++ struct completion cmd_done; ++ atomic_t cmd_fifo_full; ++ atomic_t cmd_pending; ++#ifdef MEASURE_PERF ++ unsigned perf_bytes; ++ ktime_t perf_setup_time; ++ ktime_t perf_start_time; ++#endif ++} rfbi; ++ ++struct update_region { ++ u16 x; ++ u16 y; ++ u16 w; ++ u16 h; ++}; ++ ++struct update_param { ++ u8 rfbi_module; ++ u8 cmd; ++ ++ union { ++ struct update_region r; ++ struct completion *sync; ++ } par; ++}; ++ ++static inline void rfbi_write_reg(const struct rfbi_reg idx, u32 val) ++{ ++ __raw_writel(val, rfbi.base + idx.idx); ++} ++ ++static inline u32 rfbi_read_reg(const struct rfbi_reg idx) ++{ ++ return __raw_readl(rfbi.base + idx.idx); ++} ++ ++static void rfbi_enable_clocks(bool enable) ++{ ++ if (enable) ++ dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1); ++ else ++ dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1); ++} ++ ++void omap_rfbi_write_command(const void *buf, u32 len) ++{ ++ rfbi_enable_clocks(1); ++ switch (rfbi.parallelmode) { ++ case OMAP_DSS_RFBI_PARALLELMODE_8: ++ { ++ const u8 *b = buf; ++ for (; len; len--) ++ rfbi_write_reg(RFBI_CMD, *b++); ++ break; ++ } ++ ++ case OMAP_DSS_RFBI_PARALLELMODE_16: ++ { ++ const u16 *w = buf; ++ BUG_ON(len & 1); ++ for (; len; len -= 2) ++ rfbi_write_reg(RFBI_CMD, *w++); ++ break; ++ } ++ ++ case OMAP_DSS_RFBI_PARALLELMODE_9: ++ case OMAP_DSS_RFBI_PARALLELMODE_12: ++ default: ++ BUG(); ++ } ++ rfbi_enable_clocks(0); ++} ++EXPORT_SYMBOL(omap_rfbi_write_command); ++ ++void omap_rfbi_read_data(void *buf, u32 len) ++{ ++ rfbi_enable_clocks(1); ++ switch (rfbi.parallelmode) { ++ case OMAP_DSS_RFBI_PARALLELMODE_8: ++ { ++ u8 *b = buf; ++ for (; len; len--) { ++ rfbi_write_reg(RFBI_READ, 0); ++ *b++ = rfbi_read_reg(RFBI_READ); ++ } ++ break; ++ } ++ ++ case OMAP_DSS_RFBI_PARALLELMODE_16: ++ { ++ u16 *w = buf; ++ BUG_ON(len & ~1); ++ for (; len; len -= 2) { ++ rfbi_write_reg(RFBI_READ, 0); ++ *w++ = rfbi_read_reg(RFBI_READ); ++ } ++ break; ++ } ++ ++ case OMAP_DSS_RFBI_PARALLELMODE_9: ++ case OMAP_DSS_RFBI_PARALLELMODE_12: ++ default: ++ BUG(); ++ } ++ rfbi_enable_clocks(0); ++} ++EXPORT_SYMBOL(omap_rfbi_read_data); ++ ++void omap_rfbi_write_data(const void *buf, u32 len) ++{ ++ rfbi_enable_clocks(1); ++ switch (rfbi.parallelmode) { ++ case OMAP_DSS_RFBI_PARALLELMODE_8: ++ { ++ const u8 *b = buf; ++ for (; len; len--) ++ rfbi_write_reg(RFBI_PARAM, *b++); ++ break; ++ } ++ ++ case OMAP_DSS_RFBI_PARALLELMODE_16: ++ { ++ const u16 *w = buf; ++ BUG_ON(len & 1); ++ for (; len; len -= 2) ++ rfbi_write_reg(RFBI_PARAM, *w++); ++ break; ++ } ++ ++ case OMAP_DSS_RFBI_PARALLELMODE_9: ++ case OMAP_DSS_RFBI_PARALLELMODE_12: ++ default: ++ BUG(); ++ ++ } ++ rfbi_enable_clocks(0); ++} ++EXPORT_SYMBOL(omap_rfbi_write_data); ++ ++void omap_rfbi_write_pixels(const void __iomem *buf, int scr_width, ++ u16 x, u16 y, ++ u16 w, u16 h) ++{ ++ int start_offset = scr_width * y + x; ++ int horiz_offset = scr_width - w; ++ int i; ++ ++ rfbi_enable_clocks(1); ++ ++ if (rfbi.datatype == OMAP_DSS_RFBI_DATATYPE_16 && ++ rfbi.parallelmode == OMAP_DSS_RFBI_PARALLELMODE_8) { ++ const u16 __iomem *pd = buf; ++ pd += start_offset; ++ ++ for (; h; --h) { ++ for (i = 0; i < w; ++i) { ++ const u8 __iomem *b = (const u8 __iomem *)pd; ++ rfbi_write_reg(RFBI_PARAM, __raw_readb(b+1)); ++ rfbi_write_reg(RFBI_PARAM, __raw_readb(b+0)); ++ ++pd; ++ } ++ pd += horiz_offset; ++ } ++ } else if (rfbi.datatype == OMAP_DSS_RFBI_DATATYPE_24 && ++ rfbi.parallelmode == OMAP_DSS_RFBI_PARALLELMODE_8) { ++ const u32 __iomem *pd = buf; ++ pd += start_offset; ++ ++ for (; h; --h) { ++ for (i = 0; i < w; ++i) { ++ const u8 __iomem *b = (const u8 __iomem *)pd; ++ rfbi_write_reg(RFBI_PARAM, __raw_readb(b+2)); ++ rfbi_write_reg(RFBI_PARAM, __raw_readb(b+1)); ++ rfbi_write_reg(RFBI_PARAM, __raw_readb(b+0)); ++ ++pd; ++ } ++ pd += horiz_offset; ++ } ++ } else if (rfbi.datatype == OMAP_DSS_RFBI_DATATYPE_16 && ++ rfbi.parallelmode == OMAP_DSS_RFBI_PARALLELMODE_16) { ++ const u16 __iomem *pd = buf; ++ pd += start_offset; ++ ++ for (; h; --h) { ++ for (i = 0; i < w; ++i) { ++ rfbi_write_reg(RFBI_PARAM, __raw_readw(pd)); ++ ++pd; ++ } ++ pd += horiz_offset; ++ } ++ } else { ++ BUG(); ++ } ++ ++ rfbi_enable_clocks(0); ++} ++EXPORT_SYMBOL(omap_rfbi_write_pixels); ++ ++#ifdef MEASURE_PERF ++static void perf_mark_setup(void) ++{ ++ rfbi.perf_setup_time = ktime_get(); ++} ++ ++static void perf_mark_start(void) ++{ ++ rfbi.perf_start_time = ktime_get(); ++} ++ ++static void perf_show(const char *name) ++{ ++ ktime_t t, setup_time, trans_time; ++ u32 total_bytes; ++ u32 setup_us, trans_us, total_us; ++ ++ t = ktime_get(); ++ ++ setup_time = ktime_sub(rfbi.perf_start_time, rfbi.perf_setup_time); ++ setup_us = (u32)ktime_to_us(setup_time); ++ if (setup_us == 0) ++ setup_us = 1; ++ ++ trans_time = ktime_sub(t, rfbi.perf_start_time); ++ trans_us = (u32)ktime_to_us(trans_time); ++ if (trans_us == 0) ++ trans_us = 1; ++ ++ total_us = setup_us + trans_us; ++ ++ total_bytes = rfbi.perf_bytes; ++ ++ DSSINFO("%s update %u us + %u us = %u us (%uHz), %u bytes, " ++ "%u kbytes/sec\n", ++ name, ++ setup_us, ++ trans_us, ++ total_us, ++ 1000*1000 / total_us, ++ total_bytes, ++ total_bytes * 1000 / total_us); ++} ++#else ++#define perf_mark_setup() ++#define perf_mark_start() ++#define perf_show(x) ++#endif ++ ++void rfbi_transfer_area(u16 width, u16 height, ++ void (callback)(void *data), void *data) ++{ ++ u32 l; ++ ++ /*BUG_ON(callback == 0);*/ ++ BUG_ON(rfbi.framedone_callback != NULL); ++ ++ DSSDBG("rfbi_transfer_area %dx%d\n", width, height); ++ ++ dispc_set_lcd_size(width, height); ++ ++ dispc_enable_lcd_out(1); ++ ++ rfbi.framedone_callback = callback; ++ rfbi.framedone_callback_data = data; ++ ++ rfbi_enable_clocks(1); ++ ++ rfbi_write_reg(RFBI_PIXEL_CNT, width * height); ++ ++ l = rfbi_read_reg(RFBI_CONTROL); ++ l = FLD_MOD(l, 1, 0, 0); /* enable */ ++ if (!rfbi.te_enabled) ++ l = FLD_MOD(l, 1, 4, 4); /* ITE */ ++ ++ perf_mark_start(); ++ ++ rfbi_write_reg(RFBI_CONTROL, l); ++} ++ ++static void framedone_callback(void *data, u32 mask) ++{ ++ void (*callback)(void *data); ++ ++ DSSDBG("FRAMEDONE\n"); ++ ++ perf_show("DISPC"); ++ ++ REG_FLD_MOD(RFBI_CONTROL, 0, 0, 0); ++ ++ rfbi_enable_clocks(0); ++ ++ callback = rfbi.framedone_callback; ++ rfbi.framedone_callback = NULL; ++ ++ /*callback(rfbi.framedone_callback_data);*/ ++ ++ atomic_set(&rfbi.cmd_pending, 0); ++ ++ process_cmd_fifo(); ++} ++ ++#if 1 /* VERBOSE */ ++static void rfbi_print_timings(void) ++{ ++ u32 l; ++ u32 time; ++ ++ l = rfbi_read_reg(RFBI_CONFIG(0)); ++ time = 1000000000 / rfbi.l4_khz; ++ if (l & (1 << 4)) ++ time *= 2; ++ ++ DSSDBG("Tick time %u ps\n", time); ++ l = rfbi_read_reg(RFBI_ONOFF_TIME(0)); ++ DSSDBG("CSONTIME %d, CSOFFTIME %d, WEONTIME %d, WEOFFTIME %d, " ++ "REONTIME %d, REOFFTIME %d\n", ++ l & 0x0f, (l >> 4) & 0x3f, (l >> 10) & 0x0f, (l >> 14) & 0x3f, ++ (l >> 20) & 0x0f, (l >> 24) & 0x3f); ++ ++ l = rfbi_read_reg(RFBI_CYCLE_TIME(0)); ++ DSSDBG("WECYCLETIME %d, RECYCLETIME %d, CSPULSEWIDTH %d, " ++ "ACCESSTIME %d\n", ++ (l & 0x3f), (l >> 6) & 0x3f, (l >> 12) & 0x3f, ++ (l >> 22) & 0x3f); ++} ++#else ++static void rfbi_print_timings(void) {} ++#endif ++ ++ ++ ++ ++static u32 extif_clk_period; ++ ++static inline unsigned long round_to_extif_ticks(unsigned long ps, int div) ++{ ++ int bus_tick = extif_clk_period * div; ++ return (ps + bus_tick - 1) / bus_tick * bus_tick; ++} ++ ++static int calc_reg_timing(struct rfbi_timings *t, int div) ++{ ++ t->clk_div = div; ++ ++ t->cs_on_time = round_to_extif_ticks(t->cs_on_time, div); ++ ++ t->we_on_time = round_to_extif_ticks(t->we_on_time, div); ++ t->we_off_time = round_to_extif_ticks(t->we_off_time, div); ++ t->we_cycle_time = round_to_extif_ticks(t->we_cycle_time, div); ++ ++ t->re_on_time = round_to_extif_ticks(t->re_on_time, div); ++ t->re_off_time = round_to_extif_ticks(t->re_off_time, div); ++ t->re_cycle_time = round_to_extif_ticks(t->re_cycle_time, div); ++ ++ t->access_time = round_to_extif_ticks(t->access_time, div); ++ t->cs_off_time = round_to_extif_ticks(t->cs_off_time, div); ++ t->cs_pulse_width = round_to_extif_ticks(t->cs_pulse_width, div); ++ ++ DSSDBG("[reg]cson %d csoff %d reon %d reoff %d\n", ++ t->cs_on_time, t->cs_off_time, t->re_on_time, t->re_off_time); ++ DSSDBG("[reg]weon %d weoff %d recyc %d wecyc %d\n", ++ t->we_on_time, t->we_off_time, t->re_cycle_time, ++ t->we_cycle_time); ++ DSSDBG("[reg]rdaccess %d cspulse %d\n", ++ t->access_time, t->cs_pulse_width); ++ ++ return rfbi_convert_timings(t); ++} ++ ++static int calc_extif_timings(struct rfbi_timings *t) ++{ ++ u32 max_clk_div; ++ int div; ++ ++ rfbi_get_clk_info(&extif_clk_period, &max_clk_div); ++ for (div = 1; div <= max_clk_div; div++) { ++ if (calc_reg_timing(t, div) == 0) ++ break; ++ } ++ ++ if (div <= max_clk_div) ++ return 0; ++ ++ DSSERR("can't setup timings\n"); ++ return -1; ++} ++ ++ ++void rfbi_set_timings(int rfbi_module, struct rfbi_timings *t) ++{ ++ int r; ++ ++ if (!t->converted) { ++ r = calc_extif_timings(t); ++ if (r < 0) ++ DSSERR("Failed to calc timings\n"); ++ } ++ ++ BUG_ON(!t->converted); ++ ++ rfbi_enable_clocks(1); ++ rfbi_write_reg(RFBI_ONOFF_TIME(rfbi_module), t->tim[0]); ++ rfbi_write_reg(RFBI_CYCLE_TIME(rfbi_module), t->tim[1]); ++ ++ /* TIMEGRANULARITY */ ++ REG_FLD_MOD(RFBI_CONFIG(rfbi_module), ++ (t->tim[2] ? 1 : 0), 4, 4); ++ ++ rfbi_print_timings(); ++ rfbi_enable_clocks(0); ++} ++ ++static int ps_to_rfbi_ticks(int time, int div) ++{ ++ unsigned long tick_ps; ++ int ret; ++ ++ /* Calculate in picosecs to yield more exact results */ ++ tick_ps = 1000000000 / (rfbi.l4_khz) * div; ++ ++ ret = (time + tick_ps - 1) / tick_ps; ++ ++ return ret; ++} ++ ++#ifdef OMAP_RFBI_RATE_LIMIT ++unsigned long rfbi_get_max_tx_rate(void) ++{ ++ unsigned long l4_rate, dss1_rate; ++ int min_l4_ticks = 0; ++ int i; ++ ++ /* According to TI this can't be calculated so make the ++ * adjustments for a couple of known frequencies and warn for ++ * others. ++ */ ++ static const struct { ++ unsigned long l4_clk; /* HZ */ ++ unsigned long dss1_clk; /* HZ */ ++ unsigned long min_l4_ticks; ++ } ftab[] = { ++ { 55, 132, 7, }, /* 7.86 MPix/s */ ++ { 110, 110, 12, }, /* 9.16 MPix/s */ ++ { 110, 132, 10, }, /* 11 Mpix/s */ ++ { 120, 120, 10, }, /* 12 Mpix/s */ ++ { 133, 133, 10, }, /* 13.3 Mpix/s */ ++ }; ++ ++ l4_rate = rfbi.l4_khz / 1000; ++ dss1_rate = dss_clk_get_rate(DSS_CLK_FCK1) / 1000000; ++ ++ for (i = 0; i < ARRAY_SIZE(ftab); i++) { ++ /* Use a window instead of an exact match, to account ++ * for different DPLL multiplier / divider pairs. ++ */ ++ if (abs(ftab[i].l4_clk - l4_rate) < 3 && ++ abs(ftab[i].dss1_clk - dss1_rate) < 3) { ++ min_l4_ticks = ftab[i].min_l4_ticks; ++ break; ++ } ++ } ++ if (i == ARRAY_SIZE(ftab)) { ++ /* Can't be sure, return anyway the maximum not ++ * rate-limited. This might cause a problem only for the ++ * tearing synchronisation. ++ */ ++ DSSERR("can't determine maximum RFBI transfer rate\n"); ++ return rfbi.l4_khz * 1000; ++ } ++ return rfbi.l4_khz * 1000 / min_l4_ticks; ++} ++#else ++int rfbi_get_max_tx_rate(void) ++{ ++ return rfbi.l4_khz * 1000; ++} ++#endif ++ ++static void rfbi_get_clk_info(u32 *clk_period, u32 *max_clk_div) ++{ ++ *clk_period = 1000000000 / rfbi.l4_khz; ++ *max_clk_div = 2; ++} ++ ++static int rfbi_convert_timings(struct rfbi_timings *t) ++{ ++ u32 l; ++ int reon, reoff, weon, weoff, cson, csoff, cs_pulse; ++ int actim, recyc, wecyc; ++ int div = t->clk_div; ++ ++ if (div <= 0 || div > 2) ++ return -1; ++ ++ /* Make sure that after conversion it still holds that: ++ * weoff > weon, reoff > reon, recyc >= reoff, wecyc >= weoff, ++ * csoff > cson, csoff >= max(weoff, reoff), actim > reon ++ */ ++ weon = ps_to_rfbi_ticks(t->we_on_time, div); ++ weoff = ps_to_rfbi_ticks(t->we_off_time, div); ++ if (weoff <= weon) ++ weoff = weon + 1; ++ if (weon > 0x0f) ++ return -1; ++ if (weoff > 0x3f) ++ return -1; ++ ++ reon = ps_to_rfbi_ticks(t->re_on_time, div); ++ reoff = ps_to_rfbi_ticks(t->re_off_time, div); ++ if (reoff <= reon) ++ reoff = reon + 1; ++ if (reon > 0x0f) ++ return -1; ++ if (reoff > 0x3f) ++ return -1; ++ ++ cson = ps_to_rfbi_ticks(t->cs_on_time, div); ++ csoff = ps_to_rfbi_ticks(t->cs_off_time, div); ++ if (csoff <= cson) ++ csoff = cson + 1; ++ if (csoff < max(weoff, reoff)) ++ csoff = max(weoff, reoff); ++ if (cson > 0x0f) ++ return -1; ++ if (csoff > 0x3f) ++ return -1; ++ ++ l = cson; ++ l |= csoff << 4; ++ l |= weon << 10; ++ l |= weoff << 14; ++ l |= reon << 20; ++ l |= reoff << 24; ++ ++ t->tim[0] = l; ++ ++ actim = ps_to_rfbi_ticks(t->access_time, div); ++ if (actim <= reon) ++ actim = reon + 1; ++ if (actim > 0x3f) ++ return -1; ++ ++ wecyc = ps_to_rfbi_ticks(t->we_cycle_time, div); ++ if (wecyc < weoff) ++ wecyc = weoff; ++ if (wecyc > 0x3f) ++ return -1; ++ ++ recyc = ps_to_rfbi_ticks(t->re_cycle_time, div); ++ if (recyc < reoff) ++ recyc = reoff; ++ if (recyc > 0x3f) ++ return -1; ++ ++ cs_pulse = ps_to_rfbi_ticks(t->cs_pulse_width, div); ++ if (cs_pulse > 0x3f) ++ return -1; ++ ++ l = wecyc; ++ l |= recyc << 6; ++ l |= cs_pulse << 12; ++ l |= actim << 22; ++ ++ t->tim[1] = l; ++ ++ t->tim[2] = div - 1; ++ ++ t->converted = 1; ++ ++ return 0; ++} ++ ++/* xxx FIX module selection missing */ ++int omap_rfbi_setup_te(enum omap_rfbi_te_mode mode, ++ unsigned hs_pulse_time, unsigned vs_pulse_time, ++ int hs_pol_inv, int vs_pol_inv, int extif_div) ++{ ++ int hs, vs; ++ int min; ++ u32 l; ++ ++ hs = ps_to_rfbi_ticks(hs_pulse_time, 1); ++ vs = ps_to_rfbi_ticks(vs_pulse_time, 1); ++ if (hs < 2) ++ return -EDOM; ++ if (mode == OMAP_DSS_RFBI_TE_MODE_2) ++ min = 2; ++ else /* OMAP_DSS_RFBI_TE_MODE_1 */ ++ min = 4; ++ if (vs < min) ++ return -EDOM; ++ if (vs == hs) ++ return -EINVAL; ++ rfbi.te_mode = mode; ++ DSSDBG("setup_te: mode %d hs %d vs %d hs_inv %d vs_inv %d\n", ++ mode, hs, vs, hs_pol_inv, vs_pol_inv); ++ ++ rfbi_enable_clocks(1); ++ rfbi_write_reg(RFBI_HSYNC_WIDTH, hs); ++ rfbi_write_reg(RFBI_VSYNC_WIDTH, vs); ++ ++ l = rfbi_read_reg(RFBI_CONFIG(0)); ++ if (hs_pol_inv) ++ l &= ~(1 << 21); ++ else ++ l |= 1 << 21; ++ if (vs_pol_inv) ++ l &= ~(1 << 20); ++ else ++ l |= 1 << 20; ++ rfbi_enable_clocks(0); ++ ++ return 0; ++} ++EXPORT_SYMBOL(omap_rfbi_setup_te); ++ ++/* xxx FIX module selection missing */ ++int omap_rfbi_enable_te(bool enable, unsigned line) ++{ ++ u32 l; ++ ++ DSSDBG("te %d line %d mode %d\n", enable, line, rfbi.te_mode); ++ if (line > (1 << 11) - 1) ++ return -EINVAL; ++ ++ rfbi_enable_clocks(1); ++ l = rfbi_read_reg(RFBI_CONFIG(0)); ++ l &= ~(0x3 << 2); ++ if (enable) { ++ rfbi.te_enabled = 1; ++ l |= rfbi.te_mode << 2; ++ } else ++ rfbi.te_enabled = 0; ++ rfbi_write_reg(RFBI_CONFIG(0), l); ++ rfbi_write_reg(RFBI_LINE_NUMBER, line); ++ rfbi_enable_clocks(0); ++ ++ return 0; ++} ++EXPORT_SYMBOL(omap_rfbi_enable_te); ++ ++#if 0 ++static void rfbi_enable_config(int enable1, int enable2) ++{ ++ u32 l; ++ int cs = 0; ++ ++ if (enable1) ++ cs |= 1<<0; ++ if (enable2) ++ cs |= 1<<1; ++ ++ rfbi_enable_clocks(1); ++ ++ l = rfbi_read_reg(RFBI_CONTROL); ++ ++ l = FLD_MOD(l, cs, 3, 2); ++ l = FLD_MOD(l, 0, 1, 1); ++ ++ rfbi_write_reg(RFBI_CONTROL, l); ++ ++ ++ l = rfbi_read_reg(RFBI_CONFIG(0)); ++ l = FLD_MOD(l, 0, 3, 2); /* TRIGGERMODE: ITE */ ++ /*l |= FLD_VAL(2, 8, 7); */ /* L4FORMAT, 2pix/L4 */ ++ /*l |= FLD_VAL(0, 8, 7); */ /* L4FORMAT, 1pix/L4 */ ++ ++ l = FLD_MOD(l, 0, 16, 16); /* A0POLARITY */ ++ l = FLD_MOD(l, 1, 20, 20); /* TE_VSYNC_POLARITY */ ++ l = FLD_MOD(l, 1, 21, 21); /* HSYNCPOLARITY */ ++ ++ l = FLD_MOD(l, OMAP_DSS_RFBI_PARALLELMODE_8, 1, 0); ++ rfbi_write_reg(RFBI_CONFIG(0), l); ++ ++ rfbi_enable_clocks(0); ++} ++#endif ++ ++int rfbi_configure(int rfbi_module, int bpp, int lines) ++{ ++ u32 l; ++ int cycle1 = 0, cycle2 = 0, cycle3 = 0; ++ enum omap_rfbi_cycleformat cycleformat; ++ enum omap_rfbi_datatype datatype; ++ enum omap_rfbi_parallelmode parallelmode; ++ ++ switch (bpp) { ++ case 12: ++ datatype = OMAP_DSS_RFBI_DATATYPE_12; ++ break; ++ case 16: ++ datatype = OMAP_DSS_RFBI_DATATYPE_16; ++ break; ++ case 18: ++ datatype = OMAP_DSS_RFBI_DATATYPE_18; ++ break; ++ case 24: ++ datatype = OMAP_DSS_RFBI_DATATYPE_24; ++ break; ++ default: ++ BUG(); ++ return 1; ++ } ++ rfbi.datatype = datatype; ++ ++ switch (lines) { ++ case 8: ++ parallelmode = OMAP_DSS_RFBI_PARALLELMODE_8; ++ break; ++ case 9: ++ parallelmode = OMAP_DSS_RFBI_PARALLELMODE_9; ++ break; ++ case 12: ++ parallelmode = OMAP_DSS_RFBI_PARALLELMODE_12; ++ break; ++ case 16: ++ parallelmode = OMAP_DSS_RFBI_PARALLELMODE_16; ++ break; ++ default: ++ BUG(); ++ return 1; ++ } ++ rfbi.parallelmode = parallelmode; ++ ++ if ((bpp % lines) == 0) { ++ switch (bpp / lines) { ++ case 1: ++ cycleformat = OMAP_DSS_RFBI_CYCLEFORMAT_1_1; ++ break; ++ case 2: ++ cycleformat = OMAP_DSS_RFBI_CYCLEFORMAT_2_1; ++ break; ++ case 3: ++ cycleformat = OMAP_DSS_RFBI_CYCLEFORMAT_3_1; ++ break; ++ default: ++ BUG(); ++ return 1; ++ } ++ } else if ((2 * bpp % lines) == 0) { ++ if ((2 * bpp / lines) == 3) ++ cycleformat = OMAP_DSS_RFBI_CYCLEFORMAT_3_2; ++ else { ++ BUG(); ++ return 1; ++ } ++ } else { ++ BUG(); ++ return 1; ++ } ++ ++ switch (cycleformat) { ++ case OMAP_DSS_RFBI_CYCLEFORMAT_1_1: ++ cycle1 = lines; ++ break; ++ ++ case OMAP_DSS_RFBI_CYCLEFORMAT_2_1: ++ cycle1 = lines; ++ cycle2 = lines; ++ break; ++ ++ case OMAP_DSS_RFBI_CYCLEFORMAT_3_1: ++ cycle1 = lines; ++ cycle2 = lines; ++ cycle3 = lines; ++ break; ++ ++ case OMAP_DSS_RFBI_CYCLEFORMAT_3_2: ++ cycle1 = lines; ++ cycle2 = (lines / 2) | ((lines / 2) << 16); ++ cycle3 = (lines << 16); ++ break; ++ } ++ ++ rfbi_enable_clocks(1); ++ ++ REG_FLD_MOD(RFBI_CONTROL, 0, 3, 2); /* clear CS */ ++ ++ l = 0; ++ l |= FLD_VAL(parallelmode, 1, 0); ++ l |= FLD_VAL(0, 3, 2); /* TRIGGERMODE: ITE */ ++ l |= FLD_VAL(0, 4, 4); /* TIMEGRANULARITY */ ++ l |= FLD_VAL(datatype, 6, 5); ++ /* l |= FLD_VAL(2, 8, 7); */ /* L4FORMAT, 2pix/L4 */ ++ l |= FLD_VAL(0, 8, 7); /* L4FORMAT, 1pix/L4 */ ++ l |= FLD_VAL(cycleformat, 10, 9); ++ l |= FLD_VAL(0, 12, 11); /* UNUSEDBITS */ ++ l |= FLD_VAL(0, 16, 16); /* A0POLARITY */ ++ l |= FLD_VAL(0, 17, 17); /* REPOLARITY */ ++ l |= FLD_VAL(0, 18, 18); /* WEPOLARITY */ ++ l |= FLD_VAL(0, 19, 19); /* CSPOLARITY */ ++ l |= FLD_VAL(1, 20, 20); /* TE_VSYNC_POLARITY */ ++ l |= FLD_VAL(1, 21, 21); /* HSYNCPOLARITY */ ++ rfbi_write_reg(RFBI_CONFIG(rfbi_module), l); ++ ++ rfbi_write_reg(RFBI_DATA_CYCLE1(rfbi_module), cycle1); ++ rfbi_write_reg(RFBI_DATA_CYCLE2(rfbi_module), cycle2); ++ rfbi_write_reg(RFBI_DATA_CYCLE3(rfbi_module), cycle3); ++ ++ ++ l = rfbi_read_reg(RFBI_CONTROL); ++ l = FLD_MOD(l, rfbi_module+1, 3, 2); /* Select CSx */ ++ l = FLD_MOD(l, 0, 1, 1); /* clear bypass */ ++ rfbi_write_reg(RFBI_CONTROL, l); ++ ++ ++ DSSDBG("RFBI config: bpp %d, lines %d, cycles: 0x%x 0x%x 0x%x\n", ++ bpp, lines, cycle1, cycle2, cycle3); ++ ++ rfbi_enable_clocks(0); ++ ++ return 0; ++} ++EXPORT_SYMBOL(rfbi_configure); ++ ++static int rfbi_find_display(struct omap_dss_device *dssdev) ++{ ++ if (dssdev == rfbi.dssdev[0]) ++ return 0; ++ ++ if (dssdev == rfbi.dssdev[1]) ++ return 1; ++ ++ BUG(); ++ return -1; ++} ++ ++ ++static void signal_fifo_waiters(void) ++{ ++ if (atomic_read(&rfbi.cmd_fifo_full) > 0) { ++ /* DSSDBG("SIGNALING: Fifo not full for waiter!\n"); */ ++ complete(&rfbi.cmd_done); ++ atomic_dec(&rfbi.cmd_fifo_full); ++ } ++} ++ ++/* returns 1 for async op, and 0 for sync op */ ++static int do_update(struct omap_dss_device *dssdev, struct update_region *upd) ++{ ++ u16 x = upd->x; ++ u16 y = upd->y; ++ u16 w = upd->w; ++ u16 h = upd->h; ++ ++ perf_mark_setup(); ++ ++ if (dssdev->manager->caps & OMAP_DSS_OVL_MGR_CAP_DISPC) { ++ /*dssdev->driver->enable_te(dssdev, 1); */ ++ dss_setup_partial_planes(dssdev, &x, &y, &w, &h); ++ } ++ ++#ifdef MEASURE_PERF ++ rfbi.perf_bytes = w * h * 2; /* XXX always 16bit */ ++#endif ++ ++ dssdev->driver->setup_update(dssdev, x, y, w, h); ++ ++ if (dssdev->manager->caps & OMAP_DSS_OVL_MGR_CAP_DISPC) { ++ rfbi_transfer_area(w, h, NULL, NULL); ++ return 1; ++ } else { ++ struct omap_overlay *ovl; ++ void __iomem *addr; ++ int scr_width; ++ ++ ovl = dssdev->manager->overlays[0]; ++ scr_width = ovl->info.screen_width; ++ addr = ovl->info.vaddr; ++ ++ omap_rfbi_write_pixels(addr, scr_width, x, y, w, h); ++ ++ perf_show("L4"); ++ ++ return 0; ++ } ++} ++ ++static void process_cmd_fifo(void) ++{ ++ int len; ++ struct update_param p; ++ struct omap_dss_device *dssdev; ++ unsigned long flags; ++ ++ if (atomic_inc_return(&rfbi.cmd_pending) != 1) ++ return; ++ ++ while (true) { ++ spin_lock_irqsave(rfbi.cmd_fifo->lock, flags); ++ ++ len = __kfifo_get(rfbi.cmd_fifo, (unsigned char *)&p, ++ sizeof(struct update_param)); ++ if (len == 0) { ++ DSSDBG("nothing more in fifo\n"); ++ atomic_set(&rfbi.cmd_pending, 0); ++ spin_unlock_irqrestore(rfbi.cmd_fifo->lock, flags); ++ break; ++ } ++ ++ /* DSSDBG("fifo full %d\n", rfbi.cmd_fifo_full.counter);*/ ++ ++ spin_unlock_irqrestore(rfbi.cmd_fifo->lock, flags); ++ ++ BUG_ON(len != sizeof(struct update_param)); ++ BUG_ON(p.rfbi_module > 1); ++ ++ dssdev = rfbi.dssdev[p.rfbi_module]; ++ ++ if (p.cmd == RFBI_CMD_UPDATE) { ++ if (do_update(dssdev, &p.par.r)) ++ break; /* async op */ ++ } else if (p.cmd == RFBI_CMD_SYNC) { ++ DSSDBG("Signaling SYNC done!\n"); ++ complete(p.par.sync); ++ } else ++ BUG(); ++ } ++ ++ signal_fifo_waiters(); ++} ++ ++static void rfbi_push_cmd(struct update_param *p) ++{ ++ int ret; ++ ++ while (1) { ++ unsigned long flags; ++ int available; ++ ++ spin_lock_irqsave(rfbi.cmd_fifo->lock, flags); ++ available = RFBI_CMD_FIFO_LEN_BYTES - ++ __kfifo_len(rfbi.cmd_fifo); ++ ++/* DSSDBG("%d bytes left in fifo\n", available); */ ++ if (available < sizeof(struct update_param)) { ++ DSSDBG("Going to wait because FIFO FULL..\n"); ++ spin_unlock_irqrestore(rfbi.cmd_fifo->lock, flags); ++ atomic_inc(&rfbi.cmd_fifo_full); ++ wait_for_completion(&rfbi.cmd_done); ++ /*DSSDBG("Woke up because fifo not full anymore\n");*/ ++ continue; ++ } ++ ++ ret = __kfifo_put(rfbi.cmd_fifo, (unsigned char *)p, ++ sizeof(struct update_param)); ++/* DSSDBG("pushed %d bytes\n", ret);*/ ++ ++ spin_unlock_irqrestore(rfbi.cmd_fifo->lock, flags); ++ ++ BUG_ON(ret != sizeof(struct update_param)); ++ ++ break; ++ } ++} ++ ++static void rfbi_push_update(int rfbi_module, int x, int y, int w, int h) ++{ ++ struct update_param p; ++ ++ p.rfbi_module = rfbi_module; ++ p.cmd = RFBI_CMD_UPDATE; ++ ++ p.par.r.x = x; ++ p.par.r.y = y; ++ p.par.r.w = w; ++ p.par.r.h = h; ++ ++ DSSDBG("RFBI pushed %d,%d %dx%d\n", x, y, w, h); ++ ++ rfbi_push_cmd(&p); ++ ++ process_cmd_fifo(); ++} ++ ++static void rfbi_push_sync(int rfbi_module, struct completion *sync_comp) ++{ ++ struct update_param p; ++ ++ p.rfbi_module = rfbi_module; ++ p.cmd = RFBI_CMD_SYNC; ++ p.par.sync = sync_comp; ++ ++ rfbi_push_cmd(&p); ++ ++ DSSDBG("RFBI sync pushed to cmd fifo\n"); ++ ++ process_cmd_fifo(); ++} ++ ++void rfbi_dump_regs(struct seq_file *s) ++{ ++#define DUMPREG(r) seq_printf(s, "%-35s %08x\n", #r, rfbi_read_reg(r)) ++ ++ dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1); ++ ++ DUMPREG(RFBI_REVISION); ++ DUMPREG(RFBI_SYSCONFIG); ++ DUMPREG(RFBI_SYSSTATUS); ++ DUMPREG(RFBI_CONTROL); ++ DUMPREG(RFBI_PIXEL_CNT); ++ DUMPREG(RFBI_LINE_NUMBER); ++ DUMPREG(RFBI_CMD); ++ DUMPREG(RFBI_PARAM); ++ DUMPREG(RFBI_DATA); ++ DUMPREG(RFBI_READ); ++ DUMPREG(RFBI_STATUS); ++ ++ DUMPREG(RFBI_CONFIG(0)); ++ DUMPREG(RFBI_ONOFF_TIME(0)); ++ DUMPREG(RFBI_CYCLE_TIME(0)); ++ DUMPREG(RFBI_DATA_CYCLE1(0)); ++ DUMPREG(RFBI_DATA_CYCLE2(0)); ++ DUMPREG(RFBI_DATA_CYCLE3(0)); ++ ++ DUMPREG(RFBI_CONFIG(1)); ++ DUMPREG(RFBI_ONOFF_TIME(1)); ++ DUMPREG(RFBI_CYCLE_TIME(1)); ++ DUMPREG(RFBI_DATA_CYCLE1(1)); ++ DUMPREG(RFBI_DATA_CYCLE2(1)); ++ DUMPREG(RFBI_DATA_CYCLE3(1)); ++ ++ DUMPREG(RFBI_VSYNC_WIDTH); ++ DUMPREG(RFBI_HSYNC_WIDTH); ++ ++ dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1); ++#undef DUMPREG ++} ++ ++int rfbi_init(void) ++{ ++ u32 rev; ++ u32 l; ++ ++ spin_lock_init(&rfbi.cmd_lock); ++ rfbi.cmd_fifo = kfifo_alloc(RFBI_CMD_FIFO_LEN_BYTES, GFP_KERNEL, ++ &rfbi.cmd_lock); ++ if (IS_ERR(rfbi.cmd_fifo)) ++ return -ENOMEM; ++ ++ init_completion(&rfbi.cmd_done); ++ atomic_set(&rfbi.cmd_fifo_full, 0); ++ atomic_set(&rfbi.cmd_pending, 0); ++ ++ rfbi.base = ioremap(RFBI_BASE, SZ_256); ++ if (!rfbi.base) { ++ DSSERR("can't ioremap RFBI\n"); ++ return -ENOMEM; ++ } ++ ++ rfbi_enable_clocks(1); ++ ++ msleep(10); ++ ++ rfbi.l4_khz = dss_clk_get_rate(DSS_CLK_ICK) / 1000; ++ ++ /* Enable autoidle and smart-idle */ ++ l = rfbi_read_reg(RFBI_SYSCONFIG); ++ l |= (1 << 0) | (2 << 3); ++ rfbi_write_reg(RFBI_SYSCONFIG, l); ++ ++ rev = rfbi_read_reg(RFBI_REVISION); ++ printk(KERN_INFO "OMAP RFBI rev %d.%d\n", ++ FLD_GET(rev, 7, 4), FLD_GET(rev, 3, 0)); ++ ++ rfbi_enable_clocks(0); ++ ++ return 0; ++} ++ ++void rfbi_exit(void) ++{ ++ DSSDBG("rfbi_exit\n"); ++ ++ kfifo_free(rfbi.cmd_fifo); ++ ++ iounmap(rfbi.base); ++} ++ ++/* struct omap_display support */ ++static int rfbi_display_update(struct omap_dss_device *dssdev, ++ u16 x, u16 y, u16 w, u16 h) ++{ ++ int rfbi_module; ++ ++ if (w == 0 || h == 0) ++ return 0; ++ ++ rfbi_module = rfbi_find_display(dssdev); ++ ++ rfbi_push_update(rfbi_module, x, y, w, h); ++ ++ return 0; ++} ++ ++static int rfbi_display_sync(struct omap_dss_device *dssdev) ++{ ++ struct completion sync_comp; ++ int rfbi_module; ++ ++ rfbi_module = rfbi_find_display(dssdev); ++ ++ init_completion(&sync_comp); ++ rfbi_push_sync(rfbi_module, &sync_comp); ++ DSSDBG("Waiting for SYNC to happen...\n"); ++ wait_for_completion(&sync_comp); ++ DSSDBG("Released from SYNC\n"); ++ return 0; ++} ++ ++static int rfbi_display_enable_te(struct omap_dss_device *dssdev, bool enable) ++{ ++ dssdev->driver->enable_te(dssdev, enable); ++ return 0; ++} ++ ++static int rfbi_display_enable(struct omap_dss_device *dssdev) ++{ ++ int r; ++ ++ r = omap_dss_start_device(dssdev); ++ if (r) { ++ DSSERR("failed to start device\n"); ++ goto err0; ++ } ++ ++ r = omap_dispc_register_isr(framedone_callback, NULL, ++ DISPC_IRQ_FRAMEDONE); ++ if (r) { ++ DSSERR("can't get FRAMEDONE irq\n"); ++ goto err1; ++ } ++ ++ dispc_set_lcd_display_type(OMAP_DSS_LCD_DISPLAY_TFT); ++ ++ dispc_set_parallel_interface_mode(OMAP_DSS_PARALLELMODE_RFBI); ++ ++ dispc_set_tft_data_lines(dssdev->ctrl.pixel_size); ++ ++ rfbi_configure(dssdev->phy.rfbi.channel, ++ dssdev->ctrl.pixel_size, ++ dssdev->phy.rfbi.data_lines); ++ ++ rfbi_set_timings(dssdev->phy.rfbi.channel, ++ &dssdev->ctrl.rfbi_timings); ++ ++ ++ if (dssdev->driver->enable) { ++ r = dssdev->driver->enable(dssdev); ++ if (r) ++ goto err2; ++ } ++ ++ return 0; ++err2: ++ omap_dispc_unregister_isr(framedone_callback, NULL, ++ DISPC_IRQ_FRAMEDONE); ++err1: ++ omap_dss_stop_device(dssdev); ++err0: ++ return r; ++} ++ ++static void rfbi_display_disable(struct omap_dss_device *dssdev) ++{ ++ dssdev->driver->disable(dssdev); ++ omap_dispc_unregister_isr(framedone_callback, NULL, ++ DISPC_IRQ_FRAMEDONE); ++ omap_dss_stop_device(dssdev); ++} ++ ++int rfbi_init_display(struct omap_dss_device *dssdev) ++{ ++ dssdev->enable = rfbi_display_enable; ++ dssdev->disable = rfbi_display_disable; ++ dssdev->update = rfbi_display_update; ++ dssdev->sync = rfbi_display_sync; ++ dssdev->enable_te = rfbi_display_enable_te; ++ ++ rfbi.dssdev[dssdev->phy.rfbi.channel] = dssdev; ++ ++ dssdev->caps = OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE; ++ ++ return 0; ++} +diff --git a/drivers/video/omap2/dss/sdi.c b/drivers/video/omap2/dss/sdi.c +new file mode 100644 +index 0000000..a9c727e +--- /dev/null ++++ b/drivers/video/omap2/dss/sdi.c +@@ -0,0 +1,261 @@ ++/* ++ * linux/drivers/video/omap2/dss/sdi.c ++ * ++ * Copyright (C) 2009 Nokia Corporation ++ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com> ++ * ++ * This program is free software; you can redistribute it and/or modify it ++ * under the terms of the GNU General Public License version 2 as published by ++ * the Free Software Foundation. ++ * ++ * This program is distributed in the hope that it will be useful, but WITHOUT ++ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or ++ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for ++ * more details. ++ * ++ * You should have received a copy of the GNU General Public License along with ++ * this program. If not, see <http://www.gnu.org/licenses/>. ++ */ ++ ++#define DSS_SUBSYS_NAME "SDI" ++ ++#include <linux/kernel.h> ++#include <linux/clk.h> ++#include <linux/delay.h> ++#include <linux/err.h> ++ ++#include <mach/board.h> ++#include <mach/display.h> ++#include "dss.h" ++ ++static struct { ++ bool skip_init; ++ bool update_enabled; ++} sdi; ++ ++static void sdi_basic_init(void) ++{ ++ dispc_set_parallel_interface_mode(OMAP_DSS_PARALLELMODE_BYPASS); ++ ++ dispc_set_lcd_display_type(OMAP_DSS_LCD_DISPLAY_TFT); ++ dispc_set_tft_data_lines(24); ++ dispc_lcd_enable_signal_polarity(1); ++} ++ ++static int sdi_display_enable(struct omap_dss_device *dssdev) ++{ ++ struct omap_video_timings *t = &dssdev->panel.timings; ++ struct dispc_clock_info cinfo; ++ u16 lck_div, pck_div; ++ unsigned long fck; ++ unsigned long pck; ++ int r; ++ ++ r = omap_dss_start_device(dssdev); ++ if (r) { ++ DSSERR("failed to start device\n"); ++ goto err0; ++ } ++ ++ if (dssdev->state != OMAP_DSS_DISPLAY_DISABLED) { ++ DSSERR("dssdev already enabled\n"); ++ r = -EINVAL; ++ goto err1; ++ } ++ ++ /* In case of skip_init sdi_init has already enabled the clocks */ ++ if (!sdi.skip_init) ++ dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1); ++ ++ sdi_basic_init(); ++ ++ /* 15.5.9.1.2 */ ++ dssdev->panel.config |= OMAP_DSS_LCD_RF | OMAP_DSS_LCD_ONOFF; ++ ++ dispc_set_pol_freq(dssdev->panel.config, dssdev->panel.acbi, ++ dssdev->panel.acb); ++ ++ if (!sdi.skip_init) ++ r = dispc_calc_clock_div(1, t->pixel_clock * 1000, ++ &cinfo); ++ else ++ r = dispc_get_clock_div(&cinfo); ++ ++ if (r) ++ goto err2; ++ ++ fck = cinfo.fck; ++ lck_div = cinfo.lck_div; ++ pck_div = cinfo.pck_div; ++ ++ pck = fck / lck_div / pck_div / 1000; ++ ++ if (pck != t->pixel_clock) { ++ DSSWARN("Could not find exact pixel clock. Requested %d kHz, " ++ "got %lu kHz\n", ++ t->pixel_clock, pck); ++ ++ t->pixel_clock = pck; ++ } ++ ++ ++ dispc_set_lcd_timings(t); ++ ++ r = dispc_set_clock_div(&cinfo); ++ if (r) ++ goto err2; ++ ++ if (!sdi.skip_init) { ++ dss_sdi_init(dssdev->phy.sdi.datapairs); ++ dss_sdi_enable(); ++ mdelay(2); ++ } ++ ++ dispc_enable_lcd_out(1); ++ ++ if (dssdev->driver->enable) { ++ r = dssdev->driver->enable(dssdev); ++ if (r) ++ goto err3; ++ } ++ ++ dssdev->state = OMAP_DSS_DISPLAY_ACTIVE; ++ ++ sdi.skip_init = 0; ++ ++ return 0; ++err3: ++ dispc_enable_lcd_out(0); ++err2: ++ dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1); ++err1: ++ omap_dss_stop_device(dssdev); ++err0: ++ return r; ++} ++ ++static int sdi_display_resume(struct omap_dss_device *dssdev); ++ ++static void sdi_display_disable(struct omap_dss_device *dssdev) ++{ ++ if (dssdev->state == OMAP_DSS_DISPLAY_DISABLED) ++ return; ++ ++ if (dssdev->state == OMAP_DSS_DISPLAY_SUSPENDED) ++ sdi_display_resume(dssdev); ++ ++ if (dssdev->driver->disable) ++ dssdev->driver->disable(dssdev); ++ ++ dispc_enable_lcd_out(0); ++ ++ dss_sdi_disable(); ++ ++ dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1); ++ ++ dssdev->state = OMAP_DSS_DISPLAY_DISABLED; ++ ++ omap_dss_stop_device(dssdev); ++} ++ ++static int sdi_display_suspend(struct omap_dss_device *dssdev) ++{ ++ if (dssdev->state != OMAP_DSS_DISPLAY_ACTIVE) ++ return -EINVAL; ++ ++ if (dssdev->driver->suspend) ++ dssdev->driver->suspend(dssdev); ++ ++ dispc_enable_lcd_out(0); ++ ++ dss_sdi_disable(); ++ ++ dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1); ++ ++ dssdev->state = OMAP_DSS_DISPLAY_SUSPENDED; ++ ++ return 0; ++} ++ ++static int sdi_display_resume(struct omap_dss_device *dssdev) ++{ ++ if (dssdev->state != OMAP_DSS_DISPLAY_SUSPENDED) ++ return -EINVAL; ++ ++ dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1); ++ ++ dss_sdi_enable(); ++ mdelay(2); ++ ++ dispc_enable_lcd_out(1); ++ ++ if (dssdev->driver->resume) ++ dssdev->driver->resume(dssdev); ++ ++ dssdev->state = OMAP_DSS_DISPLAY_ACTIVE; ++ ++ return 0; ++} ++ ++static int sdi_display_set_update_mode(struct omap_dss_device *dssdev, ++ enum omap_dss_update_mode mode) ++{ ++ if (mode == OMAP_DSS_UPDATE_MANUAL) ++ return -EINVAL; ++ ++ if (mode == OMAP_DSS_UPDATE_DISABLED) { ++ dispc_enable_lcd_out(0); ++ sdi.update_enabled = 0; ++ } else { ++ dispc_enable_lcd_out(1); ++ sdi.update_enabled = 1; ++ } ++ ++ return 0; ++} ++ ++static enum omap_dss_update_mode sdi_display_get_update_mode( ++ struct omap_dss_device *dssdev) ++{ ++ return sdi.update_enabled ? OMAP_DSS_UPDATE_AUTO : ++ OMAP_DSS_UPDATE_DISABLED; ++} ++ ++static void sdi_get_timings(struct omap_dss_device *dssdev, ++ struct omap_video_timings *timings) ++{ ++ *timings = dssdev->panel.timings; ++} ++ ++int sdi_init_display(struct omap_dss_device *dssdev) ++{ ++ DSSDBG("SDI init\n"); ++ ++ dssdev->enable = sdi_display_enable; ++ dssdev->disable = sdi_display_disable; ++ dssdev->suspend = sdi_display_suspend; ++ dssdev->resume = sdi_display_resume; ++ dssdev->set_update_mode = sdi_display_set_update_mode; ++ dssdev->get_update_mode = sdi_display_get_update_mode; ++ dssdev->get_timings = sdi_get_timings; ++ ++ return 0; ++} ++ ++int sdi_init(bool skip_init) ++{ ++ /* we store this for first display enable, then clear it */ ++ sdi.skip_init = skip_init; ++ ++ /* ++ * Enable clocks already here, otherwise there would be a toggle ++ * of them until sdi_display_enable is called. ++ */ ++ if (skip_init) ++ dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1); ++ return 0; ++} ++ ++void sdi_exit(void) ++{ ++} +diff --git a/drivers/video/omap2/dss/venc.c b/drivers/video/omap2/dss/venc.c +new file mode 100644 +index 0000000..cf7827e +--- /dev/null ++++ b/drivers/video/omap2/dss/venc.c +@@ -0,0 +1,797 @@ ++/* ++ * linux/drivers/video/omap2/dss/venc.c ++ * ++ * Copyright (C) 2009 Nokia Corporation ++ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com> ++ * ++ * VENC settings from TI's DSS driver ++ * ++ * This program is free software; you can redistribute it and/or modify it ++ * under the terms of the GNU General Public License version 2 as published by ++ * the Free Software Foundation. ++ * ++ * This program is distributed in the hope that it will be useful, but WITHOUT ++ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or ++ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for ++ * more details. ++ * ++ * You should have received a copy of the GNU General Public License along with ++ * this program. If not, see <http://www.gnu.org/licenses/>. ++ */ ++ ++#define DSS_SUBSYS_NAME "VENC" ++ ++#include <linux/kernel.h> ++#include <linux/module.h> ++#include <linux/clk.h> ++#include <linux/err.h> ++#include <linux/io.h> ++#include <linux/mutex.h> ++#include <linux/completion.h> ++#include <linux/delay.h> ++#include <linux/string.h> ++#include <linux/seq_file.h> ++#include <linux/platform_device.h> ++#include <linux/regulator/consumer.h> ++ ++#include <mach/display.h> ++#include <mach/cpu.h> ++ ++#include "dss.h" ++ ++#define VENC_BASE 0x48050C00 ++ ++/* Venc registers */ ++#define VENC_REV_ID 0x00 ++#define VENC_STATUS 0x04 ++#define VENC_F_CONTROL 0x08 ++#define VENC_VIDOUT_CTRL 0x10 ++#define VENC_SYNC_CTRL 0x14 ++#define VENC_LLEN 0x1C ++#define VENC_FLENS 0x20 ++#define VENC_HFLTR_CTRL 0x24 ++#define VENC_CC_CARR_WSS_CARR 0x28 ++#define VENC_C_PHASE 0x2C ++#define VENC_GAIN_U 0x30 ++#define VENC_GAIN_V 0x34 ++#define VENC_GAIN_Y 0x38 ++#define VENC_BLACK_LEVEL 0x3C ++#define VENC_BLANK_LEVEL 0x40 ++#define VENC_X_COLOR 0x44 ++#define VENC_M_CONTROL 0x48 ++#define VENC_BSTAMP_WSS_DATA 0x4C ++#define VENC_S_CARR 0x50 ++#define VENC_LINE21 0x54 ++#define VENC_LN_SEL 0x58 ++#define VENC_L21__WC_CTL 0x5C ++#define VENC_HTRIGGER_VTRIGGER 0x60 ++#define VENC_SAVID__EAVID 0x64 ++#define VENC_FLEN__FAL 0x68 ++#define VENC_LAL__PHASE_RESET 0x6C ++#define VENC_HS_INT_START_STOP_X 0x70 ++#define VENC_HS_EXT_START_STOP_X 0x74 ++#define VENC_VS_INT_START_X 0x78 ++#define VENC_VS_INT_STOP_X__VS_INT_START_Y 0x7C ++#define VENC_VS_INT_STOP_Y__VS_EXT_START_X 0x80 ++#define VENC_VS_EXT_STOP_X__VS_EXT_START_Y 0x84 ++#define VENC_VS_EXT_STOP_Y 0x88 ++#define VENC_AVID_START_STOP_X 0x90 ++#define VENC_AVID_START_STOP_Y 0x94 ++#define VENC_FID_INT_START_X__FID_INT_START_Y 0xA0 ++#define VENC_FID_INT_OFFSET_Y__FID_EXT_START_X 0xA4 ++#define VENC_FID_EXT_START_Y__FID_EXT_OFFSET_Y 0xA8 ++#define VENC_TVDETGP_INT_START_STOP_X 0xB0 ++#define VENC_TVDETGP_INT_START_STOP_Y 0xB4 ++#define VENC_GEN_CTRL 0xB8 ++#define VENC_OUTPUT_CONTROL 0xC4 ++#define VENC_OUTPUT_TEST 0xC8 ++#define VENC_DAC_B__DAC_C 0xC8 ++ ++struct venc_config { ++ u32 f_control; ++ u32 vidout_ctrl; ++ u32 sync_ctrl; ++ u32 llen; ++ u32 flens; ++ u32 hfltr_ctrl; ++ u32 cc_carr_wss_carr; ++ u32 c_phase; ++ u32 gain_u; ++ u32 gain_v; ++ u32 gain_y; ++ u32 black_level; ++ u32 blank_level; ++ u32 x_color; ++ u32 m_control; ++ u32 bstamp_wss_data; ++ u32 s_carr; ++ u32 line21; ++ u32 ln_sel; ++ u32 l21__wc_ctl; ++ u32 htrigger_vtrigger; ++ u32 savid__eavid; ++ u32 flen__fal; ++ u32 lal__phase_reset; ++ u32 hs_int_start_stop_x; ++ u32 hs_ext_start_stop_x; ++ u32 vs_int_start_x; ++ u32 vs_int_stop_x__vs_int_start_y; ++ u32 vs_int_stop_y__vs_ext_start_x; ++ u32 vs_ext_stop_x__vs_ext_start_y; ++ u32 vs_ext_stop_y; ++ u32 avid_start_stop_x; ++ u32 avid_start_stop_y; ++ u32 fid_int_start_x__fid_int_start_y; ++ u32 fid_int_offset_y__fid_ext_start_x; ++ u32 fid_ext_start_y__fid_ext_offset_y; ++ u32 tvdetgp_int_start_stop_x; ++ u32 tvdetgp_int_start_stop_y; ++ u32 gen_ctrl; ++}; ++ ++/* from TRM */ ++static const struct venc_config venc_config_pal_trm = { ++ .f_control = 0, ++ .vidout_ctrl = 1, ++ .sync_ctrl = 0x40, ++ .llen = 0x35F, /* 863 */ ++ .flens = 0x270, /* 624 */ ++ .hfltr_ctrl = 0, ++ .cc_carr_wss_carr = 0x2F7225ED, ++ .c_phase = 0, ++ .gain_u = 0x111, ++ .gain_v = 0x181, ++ .gain_y = 0x140, ++ .black_level = 0x3B, ++ .blank_level = 0x3B, ++ .x_color = 0x7, ++ .m_control = 0x2, ++ .bstamp_wss_data = 0x3F, ++ .s_carr = 0x2A098ACB, ++ .line21 = 0, ++ .ln_sel = 0x01290015, ++ .l21__wc_ctl = 0x0000F603, ++ .htrigger_vtrigger = 0, ++ ++ .savid__eavid = 0x06A70108, ++ .flen__fal = 0x00180270, ++ .lal__phase_reset = 0x00040135, ++ .hs_int_start_stop_x = 0x00880358, ++ .hs_ext_start_stop_x = 0x000F035F, ++ .vs_int_start_x = 0x01A70000, ++ .vs_int_stop_x__vs_int_start_y = 0x000001A7, ++ .vs_int_stop_y__vs_ext_start_x = 0x01AF0000, ++ .vs_ext_stop_x__vs_ext_start_y = 0x000101AF, ++ .vs_ext_stop_y = 0x00000025, ++ .avid_start_stop_x = 0x03530083, ++ .avid_start_stop_y = 0x026C002E, ++ .fid_int_start_x__fid_int_start_y = 0x0001008A, ++ .fid_int_offset_y__fid_ext_start_x = 0x002E0138, ++ .fid_ext_start_y__fid_ext_offset_y = 0x01380001, ++ ++ .tvdetgp_int_start_stop_x = 0x00140001, ++ .tvdetgp_int_start_stop_y = 0x00010001, ++ .gen_ctrl = 0x00FF0000, ++}; ++ ++/* from TRM */ ++static const struct venc_config venc_config_ntsc_trm = { ++ .f_control = 0, ++ .vidout_ctrl = 1, ++ .sync_ctrl = 0x8040, ++ .llen = 0x359, ++ .flens = 0x20C, ++ .hfltr_ctrl = 0, ++ .cc_carr_wss_carr = 0x043F2631, ++ .c_phase = 0, ++ .gain_u = 0x102, ++ .gain_v = 0x16C, ++ .gain_y = 0x12F, ++ .black_level = 0x43, ++ .blank_level = 0x38, ++ .x_color = 0x7, ++ .m_control = 0x1, ++ .bstamp_wss_data = 0x38, ++ .s_carr = 0x21F07C1F, ++ .line21 = 0, ++ .ln_sel = 0x01310011, ++ .l21__wc_ctl = 0x0000F003, ++ .htrigger_vtrigger = 0, ++ ++ .savid__eavid = 0x069300F4, ++ .flen__fal = 0x0016020C, ++ .lal__phase_reset = 0x00060107, ++ .hs_int_start_stop_x = 0x008E0350, ++ .hs_ext_start_stop_x = 0x000F0359, ++ .vs_int_start_x = 0x01A00000, ++ .vs_int_stop_x__vs_int_start_y = 0x020701A0, ++ .vs_int_stop_y__vs_ext_start_x = 0x01AC0024, ++ .vs_ext_stop_x__vs_ext_start_y = 0x020D01AC, ++ .vs_ext_stop_y = 0x00000006, ++ .avid_start_stop_x = 0x03480078, ++ .avid_start_stop_y = 0x02060024, ++ .fid_int_start_x__fid_int_start_y = 0x0001008A, ++ .fid_int_offset_y__fid_ext_start_x = 0x01AC0106, ++ .fid_ext_start_y__fid_ext_offset_y = 0x01060006, ++ ++ .tvdetgp_int_start_stop_x = 0x00140001, ++ .tvdetgp_int_start_stop_y = 0x00010001, ++ .gen_ctrl = 0x00F90000, ++}; ++ ++static const struct venc_config venc_config_pal_bdghi = { ++ .f_control = 0, ++ .vidout_ctrl = 0, ++ .sync_ctrl = 0, ++ .hfltr_ctrl = 0, ++ .x_color = 0, ++ .line21 = 0, ++ .ln_sel = 21, ++ .htrigger_vtrigger = 0, ++ .tvdetgp_int_start_stop_x = 0x00140001, ++ .tvdetgp_int_start_stop_y = 0x00010001, ++ .gen_ctrl = 0x00FB0000, ++ ++ .llen = 864-1, ++ .flens = 625-1, ++ .cc_carr_wss_carr = 0x2F7625ED, ++ .c_phase = 0xDF, ++ .gain_u = 0x111, ++ .gain_v = 0x181, ++ .gain_y = 0x140, ++ .black_level = 0x3e, ++ .blank_level = 0x3e, ++ .m_control = 0<<2 | 1<<1, ++ .bstamp_wss_data = 0x42, ++ .s_carr = 0x2a098acb, ++ .l21__wc_ctl = 0<<13 | 0x16<<8 | 0<<0, ++ .savid__eavid = 0x06A70108, ++ .flen__fal = 23<<16 | 624<<0, ++ .lal__phase_reset = 2<<17 | 310<<0, ++ .hs_int_start_stop_x = 0x00920358, ++ .hs_ext_start_stop_x = 0x000F035F, ++ .vs_int_start_x = 0x1a7<<16, ++ .vs_int_stop_x__vs_int_start_y = 0x000601A7, ++ .vs_int_stop_y__vs_ext_start_x = 0x01AF0036, ++ .vs_ext_stop_x__vs_ext_start_y = 0x27101af, ++ .vs_ext_stop_y = 0x05, ++ .avid_start_stop_x = 0x03530082, ++ .avid_start_stop_y = 0x0270002E, ++ .fid_int_start_x__fid_int_start_y = 0x0005008A, ++ .fid_int_offset_y__fid_ext_start_x = 0x002E0138, ++ .fid_ext_start_y__fid_ext_offset_y = 0x01380005, ++}; ++ ++const struct omap_video_timings omap_dss_pal_timings = { ++ .x_res = 720, ++ .y_res = 574, ++ .pixel_clock = 13500, ++ .hsw = 64, ++ .hfp = 12, ++ .hbp = 68, ++ .vsw = 5, ++ .vfp = 5, ++ .vbp = 41, ++}; ++EXPORT_SYMBOL(omap_dss_pal_timings); ++ ++const struct omap_video_timings omap_dss_ntsc_timings = { ++ .x_res = 720, ++ .y_res = 482, ++ .pixel_clock = 13500, ++ .hsw = 64, ++ .hfp = 16, ++ .hbp = 58, ++ .vsw = 6, ++ .vfp = 6, ++ .vbp = 31, ++}; ++EXPORT_SYMBOL(omap_dss_ntsc_timings); ++ ++static struct { ++ void __iomem *base; ++ struct mutex venc_lock; ++ u32 wss_data; ++ struct regulator *vdda_dac_reg; ++} venc; ++ ++static inline void venc_write_reg(int idx, u32 val) ++{ ++ __raw_writel(val, venc.base + idx); ++} ++ ++static inline u32 venc_read_reg(int idx) ++{ ++ u32 l = __raw_readl(venc.base + idx); ++ return l; ++} ++ ++static void venc_write_config(const struct venc_config *config) ++{ ++ DSSDBG("write venc conf\n"); ++ ++ venc_write_reg(VENC_LLEN, config->llen); ++ venc_write_reg(VENC_FLENS, config->flens); ++ venc_write_reg(VENC_CC_CARR_WSS_CARR, config->cc_carr_wss_carr); ++ venc_write_reg(VENC_C_PHASE, config->c_phase); ++ venc_write_reg(VENC_GAIN_U, config->gain_u); ++ venc_write_reg(VENC_GAIN_V, config->gain_v); ++ venc_write_reg(VENC_GAIN_Y, config->gain_y); ++ venc_write_reg(VENC_BLACK_LEVEL, config->black_level); ++ venc_write_reg(VENC_BLANK_LEVEL, config->blank_level); ++ venc_write_reg(VENC_M_CONTROL, config->m_control); ++ venc_write_reg(VENC_BSTAMP_WSS_DATA, config->bstamp_wss_data | ++ venc.wss_data); ++ venc_write_reg(VENC_S_CARR, config->s_carr); ++ venc_write_reg(VENC_L21__WC_CTL, config->l21__wc_ctl); ++ venc_write_reg(VENC_SAVID__EAVID, config->savid__eavid); ++ venc_write_reg(VENC_FLEN__FAL, config->flen__fal); ++ venc_write_reg(VENC_LAL__PHASE_RESET, config->lal__phase_reset); ++ venc_write_reg(VENC_HS_INT_START_STOP_X, config->hs_int_start_stop_x); ++ venc_write_reg(VENC_HS_EXT_START_STOP_X, config->hs_ext_start_stop_x); ++ venc_write_reg(VENC_VS_INT_START_X, config->vs_int_start_x); ++ venc_write_reg(VENC_VS_INT_STOP_X__VS_INT_START_Y, ++ config->vs_int_stop_x__vs_int_start_y); ++ venc_write_reg(VENC_VS_INT_STOP_Y__VS_EXT_START_X, ++ config->vs_int_stop_y__vs_ext_start_x); ++ venc_write_reg(VENC_VS_EXT_STOP_X__VS_EXT_START_Y, ++ config->vs_ext_stop_x__vs_ext_start_y); ++ venc_write_reg(VENC_VS_EXT_STOP_Y, config->vs_ext_stop_y); ++ venc_write_reg(VENC_AVID_START_STOP_X, config->avid_start_stop_x); ++ venc_write_reg(VENC_AVID_START_STOP_Y, config->avid_start_stop_y); ++ venc_write_reg(VENC_FID_INT_START_X__FID_INT_START_Y, ++ config->fid_int_start_x__fid_int_start_y); ++ venc_write_reg(VENC_FID_INT_OFFSET_Y__FID_EXT_START_X, ++ config->fid_int_offset_y__fid_ext_start_x); ++ venc_write_reg(VENC_FID_EXT_START_Y__FID_EXT_OFFSET_Y, ++ config->fid_ext_start_y__fid_ext_offset_y); ++ ++ venc_write_reg(VENC_DAC_B__DAC_C, venc_read_reg(VENC_DAC_B__DAC_C)); ++ venc_write_reg(VENC_VIDOUT_CTRL, config->vidout_ctrl); ++ venc_write_reg(VENC_HFLTR_CTRL, config->hfltr_ctrl); ++ venc_write_reg(VENC_X_COLOR, config->x_color); ++ venc_write_reg(VENC_LINE21, config->line21); ++ venc_write_reg(VENC_LN_SEL, config->ln_sel); ++ venc_write_reg(VENC_HTRIGGER_VTRIGGER, config->htrigger_vtrigger); ++ venc_write_reg(VENC_TVDETGP_INT_START_STOP_X, ++ config->tvdetgp_int_start_stop_x); ++ venc_write_reg(VENC_TVDETGP_INT_START_STOP_Y, ++ config->tvdetgp_int_start_stop_y); ++ venc_write_reg(VENC_GEN_CTRL, config->gen_ctrl); ++ venc_write_reg(VENC_F_CONTROL, config->f_control); ++ venc_write_reg(VENC_SYNC_CTRL, config->sync_ctrl); ++} ++ ++static void venc_reset(void) ++{ ++ int t = 1000; ++ ++ venc_write_reg(VENC_F_CONTROL, 1<<8); ++ while (venc_read_reg(VENC_F_CONTROL) & (1<<8)) { ++ if (--t == 0) { ++ DSSERR("Failed to reset venc\n"); ++ return; ++ } ++ } ++ ++ /* the magical sleep that makes things work */ ++ msleep(20); ++} ++ ++static void venc_enable_clocks(int enable) ++{ ++ if (enable) ++ dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1 | DSS_CLK_54M | ++ DSS_CLK_96M); ++ else ++ dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1 | DSS_CLK_54M | ++ DSS_CLK_96M); ++} ++ ++static const struct venc_config *venc_timings_to_config( ++ struct omap_video_timings *timings) ++{ ++ if (memcmp(&omap_dss_pal_timings, timings, sizeof(*timings)) == 0) ++ return &venc_config_pal_trm; ++ ++ if (memcmp(&omap_dss_ntsc_timings, timings, sizeof(*timings)) == 0) ++ return &venc_config_ntsc_trm; ++ ++ BUG(); ++} ++ ++ ++ ++ ++ ++/* driver */ ++static int venc_panel_probe(struct omap_dss_device *dssdev) ++{ ++ dssdev->panel.timings = omap_dss_pal_timings; ++ ++ return 0; ++} ++ ++static void venc_panel_remove(struct omap_dss_device *dssdev) ++{ ++} ++ ++static int venc_panel_enable(struct omap_dss_device *dssdev) ++{ ++ int r = 0; ++ ++ /* wait couple of vsyncs until enabling the LCD */ ++ msleep(50); ++ ++ if (dssdev->platform_enable) ++ r = dssdev->platform_enable(dssdev); ++ ++ return r; ++} ++ ++static void venc_panel_disable(struct omap_dss_device *dssdev) ++{ ++ if (dssdev->platform_disable) ++ dssdev->platform_disable(dssdev); ++ ++ /* wait at least 5 vsyncs after disabling the LCD */ ++ ++ msleep(100); ++} ++ ++static int venc_panel_suspend(struct omap_dss_device *dssdev) ++{ ++ venc_panel_disable(dssdev); ++ return 0; ++} ++ ++static int venc_panel_resume(struct omap_dss_device *dssdev) ++{ ++ return venc_panel_enable(dssdev); ++} ++ ++static struct omap_dss_driver venc_driver = { ++ .probe = venc_panel_probe, ++ .remove = venc_panel_remove, ++ ++ .enable = venc_panel_enable, ++ .disable = venc_panel_disable, ++ .suspend = venc_panel_suspend, ++ .resume = venc_panel_resume, ++ ++ .driver = { ++ .name = "venc", ++ .owner = THIS_MODULE, ++ }, ++}; ++/* driver end */ ++ ++ ++ ++int venc_init(struct platform_device *pdev) ++{ ++ u8 rev_id; ++ ++ mutex_init(&venc.venc_lock); ++ ++ venc.wss_data = 0; ++ ++ venc.base = ioremap(VENC_BASE, SZ_1K); ++ if (!venc.base) { ++ DSSERR("can't ioremap VENC\n"); ++ return -ENOMEM; ++ } ++ ++ venc.vdda_dac_reg = regulator_get(&pdev->dev, "vdda_dac"); ++ if (IS_ERR(venc.vdda_dac_reg)) { ++ iounmap(venc.base); ++ DSSERR("can't get VDDA_DAC regulator\n"); ++ return PTR_ERR(venc.vdda_dac_reg); ++ } ++ ++ venc_enable_clocks(1); ++ ++ rev_id = (u8)(venc_read_reg(VENC_REV_ID) & 0xff); ++ printk(KERN_INFO "OMAP VENC rev %d\n", rev_id); ++ ++ venc_enable_clocks(0); ++ ++ return omap_dss_register_driver(&venc_driver); ++} ++ ++void venc_exit(void) ++{ ++ omap_dss_unregister_driver(&venc_driver); ++ ++ regulator_put(venc.vdda_dac_reg); ++ ++ iounmap(venc.base); ++} ++ ++static void venc_power_on(struct omap_dss_device *dssdev) ++{ ++ u32 l; ++ ++ venc_enable_clocks(1); ++ ++ venc_reset(); ++ venc_write_config(venc_timings_to_config(&dssdev->panel.timings)); ++ ++ dss_set_venc_output(dssdev->phy.venc.type); ++ dss_set_dac_pwrdn_bgz(1); ++ ++ l = 0; ++ ++ if (dssdev->phy.venc.type == OMAP_DSS_VENC_TYPE_COMPOSITE) ++ l |= 1 << 1; ++ else /* S-Video */ ++ l |= (1 << 0) | (1 << 2); ++ ++ if (dssdev->phy.venc.invert_polarity == false) ++ l |= 1 << 3; ++ ++ venc_write_reg(VENC_OUTPUT_CONTROL, l); ++ ++ dispc_set_digit_size(dssdev->panel.timings.x_res, ++ dssdev->panel.timings.y_res/2); ++ ++ regulator_enable(venc.vdda_dac_reg); ++ ++ if (dssdev->platform_enable) ++ dssdev->platform_enable(dssdev); ++ ++ dispc_enable_digit_out(1); ++} ++ ++static void venc_power_off(struct omap_dss_device *dssdev) ++{ ++ venc_write_reg(VENC_OUTPUT_CONTROL, 0); ++ dss_set_dac_pwrdn_bgz(0); ++ ++ dispc_enable_digit_out(0); ++ ++ if (dssdev->platform_disable) ++ dssdev->platform_disable(dssdev); ++ ++ regulator_disable(venc.vdda_dac_reg); ++ ++ venc_enable_clocks(0); ++} ++ ++static int venc_enable_display(struct omap_dss_device *dssdev) ++{ ++ int r = 0; ++ ++ DSSDBG("venc_enable_display\n"); ++ ++ mutex_lock(&venc.venc_lock); ++ ++ if (dssdev->state != OMAP_DSS_DISPLAY_DISABLED) { ++ r = -EINVAL; ++ goto err; ++ } ++ ++ venc_power_on(dssdev); ++ ++ venc.wss_data = 0; ++ ++ dssdev->state = OMAP_DSS_DISPLAY_ACTIVE; ++err: ++ mutex_unlock(&venc.venc_lock); ++ ++ return r; ++} ++ ++static void venc_disable_display(struct omap_dss_device *dssdev) ++{ ++ DSSDBG("venc_disable_display\n"); ++ ++ mutex_lock(&venc.venc_lock); ++ ++ if (dssdev->state == OMAP_DSS_DISPLAY_DISABLED) ++ goto end; ++ ++ if (dssdev->state == OMAP_DSS_DISPLAY_SUSPENDED) { ++ /* suspended is the same as disabled with venc */ ++ dssdev->state = OMAP_DSS_DISPLAY_DISABLED; ++ goto end; ++ } ++ ++ venc_power_off(dssdev); ++ ++ dssdev->state = OMAP_DSS_DISPLAY_DISABLED; ++end: ++ mutex_unlock(&venc.venc_lock); ++} ++ ++static int venc_display_suspend(struct omap_dss_device *dssdev) ++{ ++ int r = 0; ++ ++ DSSDBG("venc_display_suspend\n"); ++ ++ mutex_lock(&venc.venc_lock); ++ ++ if (dssdev->state != OMAP_DSS_DISPLAY_ACTIVE) { ++ r = -EINVAL; ++ goto err; ++ } ++ ++ venc_power_off(dssdev); ++ ++ dssdev->state = OMAP_DSS_DISPLAY_SUSPENDED; ++err: ++ mutex_unlock(&venc.venc_lock); ++ ++ return r; ++} ++ ++static int venc_display_resume(struct omap_dss_device *dssdev) ++{ ++ int r = 0; ++ ++ DSSDBG("venc_display_resume\n"); ++ ++ mutex_lock(&venc.venc_lock); ++ ++ if (dssdev->state != OMAP_DSS_DISPLAY_SUSPENDED) { ++ r = -EINVAL; ++ goto err; ++ } ++ ++ venc_power_on(dssdev); ++ ++ dssdev->state = OMAP_DSS_DISPLAY_ACTIVE; ++err: ++ mutex_unlock(&venc.venc_lock); ++ ++ return r; ++} ++ ++static void venc_get_timings(struct omap_dss_device *dssdev, ++ struct omap_video_timings *timings) ++{ ++ *timings = dssdev->panel.timings; ++} ++ ++static void venc_set_timings(struct omap_dss_device *dssdev, ++ struct omap_video_timings *timings) ++{ ++ DSSDBG("venc_set_timings\n"); ++ ++ /* Reset WSS data when the TV standard changes. */ ++ if (memcmp(&dssdev->panel.timings, timings, sizeof(*timings))) ++ venc.wss_data = 0; ++ ++ dssdev->panel.timings = *timings; ++ if (dssdev->state == OMAP_DSS_DISPLAY_ACTIVE) { ++ /* turn the venc off and on to get new timings to use */ ++ venc_disable_display(dssdev); ++ venc_enable_display(dssdev); ++ } ++} ++ ++static int venc_check_timings(struct omap_dss_device *dssdev, ++ struct omap_video_timings *timings) ++{ ++ DSSDBG("venc_check_timings\n"); ++ ++ if (memcmp(&omap_dss_pal_timings, timings, sizeof(*timings)) == 0) ++ return 0; ++ ++ if (memcmp(&omap_dss_ntsc_timings, timings, sizeof(*timings)) == 0) ++ return 0; ++ ++ return -EINVAL; ++} ++ ++static u32 venc_get_wss(struct omap_dss_device *dssdev) ++{ ++ /* Invert due to VENC_L21_WC_CTL:INV=1 */ ++ return (venc.wss_data >> 8) ^ 0xfffff; ++} ++ ++static int venc_set_wss(struct omap_dss_device *dssdev, u32 wss) ++{ ++ const struct venc_config *config; ++ ++ DSSDBG("venc_set_wss\n"); ++ ++ mutex_lock(&venc.venc_lock); ++ ++ config = venc_timings_to_config(&dssdev->panel.timings); ++ ++ /* Invert due to VENC_L21_WC_CTL:INV=1 */ ++ venc.wss_data = (wss ^ 0xfffff) << 8; ++ ++ venc_enable_clocks(1); ++ ++ venc_write_reg(VENC_BSTAMP_WSS_DATA, config->bstamp_wss_data | ++ venc.wss_data); ++ ++ venc_enable_clocks(0); ++ ++ mutex_unlock(&venc.venc_lock); ++ ++ return 0; ++} ++ ++static enum omap_dss_update_mode venc_display_get_update_mode( ++ struct omap_dss_device *dssdev) ++{ ++ if (dssdev->state == OMAP_DSS_DISPLAY_ACTIVE) ++ return OMAP_DSS_UPDATE_AUTO; ++ else ++ return OMAP_DSS_UPDATE_DISABLED; ++} ++ ++int venc_init_display(struct omap_dss_device *dssdev) ++{ ++ DSSDBG("init_display\n"); ++ ++ dssdev->enable = venc_enable_display; ++ dssdev->disable = venc_disable_display; ++ dssdev->suspend = venc_display_suspend; ++ dssdev->resume = venc_display_resume; ++ dssdev->get_timings = venc_get_timings; ++ dssdev->set_timings = venc_set_timings; ++ dssdev->check_timings = venc_check_timings; ++ dssdev->get_wss = venc_get_wss; ++ dssdev->set_wss = venc_set_wss; ++ dssdev->get_update_mode = venc_display_get_update_mode; ++ ++ return 0; ++} ++ ++void venc_dump_regs(struct seq_file *s) ++{ ++#define DUMPREG(r) seq_printf(s, "%-35s %08x\n", #r, venc_read_reg(r)) ++ ++ venc_enable_clocks(1); ++ ++ DUMPREG(VENC_F_CONTROL); ++ DUMPREG(VENC_VIDOUT_CTRL); ++ DUMPREG(VENC_SYNC_CTRL); ++ DUMPREG(VENC_LLEN); ++ DUMPREG(VENC_FLENS); ++ DUMPREG(VENC_HFLTR_CTRL); ++ DUMPREG(VENC_CC_CARR_WSS_CARR); ++ DUMPREG(VENC_C_PHASE); ++ DUMPREG(VENC_GAIN_U); ++ DUMPREG(VENC_GAIN_V); ++ DUMPREG(VENC_GAIN_Y); ++ DUMPREG(VENC_BLACK_LEVEL); ++ DUMPREG(VENC_BLANK_LEVEL); ++ DUMPREG(VENC_X_COLOR); ++ DUMPREG(VENC_M_CONTROL); ++ DUMPREG(VENC_BSTAMP_WSS_DATA); ++ DUMPREG(VENC_S_CARR); ++ DUMPREG(VENC_LINE21); ++ DUMPREG(VENC_LN_SEL); ++ DUMPREG(VENC_L21__WC_CTL); ++ DUMPREG(VENC_HTRIGGER_VTRIGGER); ++ DUMPREG(VENC_SAVID__EAVID); ++ DUMPREG(VENC_FLEN__FAL); ++ DUMPREG(VENC_LAL__PHASE_RESET); ++ DUMPREG(VENC_HS_INT_START_STOP_X); ++ DUMPREG(VENC_HS_EXT_START_STOP_X); ++ DUMPREG(VENC_VS_INT_START_X); ++ DUMPREG(VENC_VS_INT_STOP_X__VS_INT_START_Y); ++ DUMPREG(VENC_VS_INT_STOP_Y__VS_EXT_START_X); ++ DUMPREG(VENC_VS_EXT_STOP_X__VS_EXT_START_Y); ++ DUMPREG(VENC_VS_EXT_STOP_Y); ++ DUMPREG(VENC_AVID_START_STOP_X); ++ DUMPREG(VENC_AVID_START_STOP_Y); ++ DUMPREG(VENC_FID_INT_START_X__FID_INT_START_Y); ++ DUMPREG(VENC_FID_INT_OFFSET_Y__FID_EXT_START_X); ++ DUMPREG(VENC_FID_EXT_START_Y__FID_EXT_OFFSET_Y); ++ DUMPREG(VENC_TVDETGP_INT_START_STOP_X); ++ DUMPREG(VENC_TVDETGP_INT_START_STOP_Y); ++ DUMPREG(VENC_GEN_CTRL); ++ DUMPREG(VENC_OUTPUT_CONTROL); ++ DUMPREG(VENC_OUTPUT_TEST); ++ ++ venc_enable_clocks(0); ++ ++#undef DUMPREG ++} +diff --git a/drivers/video/omap2/omapfb/Kconfig b/drivers/video/omap2/omapfb/Kconfig +new file mode 100644 +index 0000000..bb694cc +--- /dev/null ++++ b/drivers/video/omap2/omapfb/Kconfig +@@ -0,0 +1,37 @@ ++menuconfig FB_OMAP2 ++ tristate "OMAP2/3 frame buffer support (EXPERIMENTAL)" ++ depends on FB && OMAP2_DSS ++ ++ select OMAP2_VRAM ++ select OMAP2_VRFB ++ select FB_CFB_FILLRECT ++ select FB_CFB_COPYAREA ++ select FB_CFB_IMAGEBLIT ++ help ++ Frame buffer driver for OMAP2/3 based boards. ++ ++config FB_OMAP2_DEBUG_SUPPORT ++ bool "Debug support for OMAP2/3 FB" ++ default y ++ depends on FB_OMAP2 ++ help ++ Support for debug output. You have to enable the actual printing ++ with debug module parameter. ++ ++config FB_OMAP2_FORCE_AUTO_UPDATE ++ bool "Force main display to automatic update mode" ++ depends on FB_OMAP2 ++ help ++ Forces main display to automatic update mode (if possible), ++ and also enables tearsync (if possible). By default ++ displays that support manual update are started in manual ++ update mode. ++ ++config FB_OMAP2_NUM_FBS ++ int "Number of framebuffers" ++ range 1 10 ++ default 3 ++ depends on FB_OMAP2 ++ help ++ Select the number of framebuffers created. OMAP2/3 has 3 overlays ++ so normally this would be 3. +diff --git a/drivers/video/omap2/omapfb/Makefile b/drivers/video/omap2/omapfb/Makefile +new file mode 100644 +index 0000000..51c2e00 +--- /dev/null ++++ b/drivers/video/omap2/omapfb/Makefile +@@ -0,0 +1,2 @@ ++obj-$(CONFIG_FB_OMAP2) += omapfb.o ++omapfb-y := omapfb-main.o omapfb-sysfs.o omapfb-ioctl.o +diff --git a/drivers/video/omap2/omapfb/omapfb-ioctl.c b/drivers/video/omap2/omapfb/omapfb-ioctl.c +new file mode 100644 +index 0000000..70fb64e +--- /dev/null ++++ b/drivers/video/omap2/omapfb/omapfb-ioctl.c +@@ -0,0 +1,727 @@ ++/* ++ * linux/drivers/video/omap2/omapfb-ioctl.c ++ * ++ * Copyright (C) 2008 Nokia Corporation ++ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com> ++ * ++ * Some code and ideas taken from drivers/video/omap/ driver ++ * by Imre Deak. ++ * ++ * This program is free software; you can redistribute it and/or modify it ++ * under the terms of the GNU General Public License version 2 as published by ++ * the Free Software Foundation. ++ * ++ * This program is distributed in the hope that it will be useful, but WITHOUT ++ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or ++ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for ++ * more details. ++ * ++ * You should have received a copy of the GNU General Public License along with ++ * this program. If not, see <http://www.gnu.org/licenses/>. ++ */ ++ ++#include <linux/fb.h> ++#include <linux/device.h> ++#include <linux/uaccess.h> ++#include <linux/platform_device.h> ++#include <linux/mm.h> ++#include <linux/omapfb.h> ++#include <linux/vmalloc.h> ++ ++#include <mach/display.h> ++#include <mach/vrfb.h> ++#include <mach/vram.h> ++ ++#include "omapfb.h" ++ ++static int omapfb_setup_plane(struct fb_info *fbi, struct omapfb_plane_info *pi) ++{ ++ struct omapfb_info *ofbi = FB2OFB(fbi); ++ struct omapfb2_device *fbdev = ofbi->fbdev; ++ struct omap_dss_device *display = fb2display(fbi); ++ struct omap_overlay *ovl; ++ struct omap_overlay_info info; ++ int r = 0; ++ ++ DBG("omapfb_setup_plane\n"); ++ ++ if (ofbi->num_overlays != 1) { ++ r = -EINVAL; ++ goto out; ++ } ++ ++ /* XXX uses only the first overlay */ ++ ovl = ofbi->overlays[0]; ++ ++ if (pi->enabled && !ofbi->region.size) { ++ /* ++ * This plane's memory was freed, can't enable it ++ * until it's reallocated. ++ */ ++ r = -EINVAL; ++ goto out; ++ } ++ ++ ovl->get_overlay_info(ovl, &info); ++ ++ info.pos_x = pi->pos_x; ++ info.pos_y = pi->pos_y; ++ info.out_width = pi->out_width; ++ info.out_height = pi->out_height; ++ info.enabled = pi->enabled; ++ ++ r = ovl->set_overlay_info(ovl, &info); ++ if (r) ++ goto out; ++ ++ if (ovl->manager) { ++ r = ovl->manager->apply(ovl->manager); ++ if (r) ++ goto out; ++ } ++ ++ if (display) { ++ u16 w, h; ++ ++ if (display->sync) ++ display->sync(display); ++ ++ display->get_resolution(display, &w, &h); ++ ++ if (display->update) ++ display->update(display, 0, 0, w, h); ++ } ++ ++out: ++ if (r) ++ dev_err(fbdev->dev, "setup_plane failed\n"); ++ return r; ++} ++ ++static int omapfb_query_plane(struct fb_info *fbi, struct omapfb_plane_info *pi) ++{ ++ struct omapfb_info *ofbi = FB2OFB(fbi); ++ ++ if (ofbi->num_overlays != 1) { ++ memset(pi, 0, sizeof(*pi)); ++ } else { ++ struct omap_overlay_info *ovli; ++ struct omap_overlay *ovl; ++ ++ ovl = ofbi->overlays[0]; ++ ovli = &ovl->info; ++ ++ pi->pos_x = ovli->pos_x; ++ pi->pos_y = ovli->pos_y; ++ pi->enabled = ovli->enabled; ++ pi->channel_out = 0; /* xxx */ ++ pi->mirror = 0; ++ pi->out_width = ovli->out_width; ++ pi->out_height = ovli->out_height; ++ } ++ ++ return 0; ++} ++ ++static int omapfb_setup_mem(struct fb_info *fbi, struct omapfb_mem_info *mi) ++{ ++ struct omapfb_info *ofbi = FB2OFB(fbi); ++ struct omapfb2_device *fbdev = ofbi->fbdev; ++ struct omapfb2_mem_region *rg; ++ int r, i; ++ size_t size; ++ ++ if (mi->type > OMAPFB_MEMTYPE_MAX) ++ return -EINVAL; ++ ++ size = PAGE_ALIGN(mi->size); ++ ++ rg = &ofbi->region; ++ ++ for (i = 0; i < ofbi->num_overlays; i++) { ++ if (ofbi->overlays[i]->info.enabled) ++ return -EBUSY; ++ } ++ ++ if (rg->size != size || rg->type != mi->type) { ++ r = omapfb_realloc_fbmem(fbi, size, mi->type); ++ if (r) { ++ dev_err(fbdev->dev, "realloc fbmem failed\n"); ++ return r; ++ } ++ } ++ ++ return 0; ++} ++ ++static int omapfb_query_mem(struct fb_info *fbi, struct omapfb_mem_info *mi) ++{ ++ struct omapfb_info *ofbi = FB2OFB(fbi); ++ struct omapfb2_mem_region *rg; ++ ++ rg = &ofbi->region; ++ memset(mi, 0, sizeof(*mi)); ++ ++ mi->size = rg->size; ++ mi->type = rg->type; ++ ++ return 0; ++} ++ ++static int omapfb_update_window(struct fb_info *fbi, ++ u32 x, u32 y, u32 w, u32 h) ++{ ++ struct omap_dss_device *display = fb2display(fbi); ++ u16 dw, dh; ++ ++ if (!display) ++ return 0; ++ ++ if (w == 0 || h == 0) ++ return 0; ++ ++ display->get_resolution(display, &dw, &dh); ++ ++ if (x + w > dw || y + h > dh) ++ return -EINVAL; ++ ++ display->update(display, x, y, w, h); ++ ++ return 0; ++} ++ ++static int omapfb_set_update_mode(struct fb_info *fbi, ++ enum omapfb_update_mode mode) ++{ ++ struct omap_dss_device *display = fb2display(fbi); ++ enum omap_dss_update_mode um; ++ int r; ++ ++ if (!display || !display->set_update_mode) ++ return -EINVAL; ++ ++ switch (mode) { ++ case OMAPFB_UPDATE_DISABLED: ++ um = OMAP_DSS_UPDATE_DISABLED; ++ break; ++ ++ case OMAPFB_AUTO_UPDATE: ++ um = OMAP_DSS_UPDATE_AUTO; ++ break; ++ ++ case OMAPFB_MANUAL_UPDATE: ++ um = OMAP_DSS_UPDATE_MANUAL; ++ break; ++ ++ default: ++ return -EINVAL; ++ } ++ ++ r = display->set_update_mode(display, um); ++ ++ return r; ++} ++ ++static int omapfb_get_update_mode(struct fb_info *fbi, ++ enum omapfb_update_mode *mode) ++{ ++ struct omap_dss_device *display = fb2display(fbi); ++ enum omap_dss_update_mode m; ++ ++ if (!display || !display->get_update_mode) ++ return -EINVAL; ++ ++ m = display->get_update_mode(display); ++ ++ switch (m) { ++ case OMAP_DSS_UPDATE_DISABLED: ++ *mode = OMAPFB_UPDATE_DISABLED; ++ break; ++ case OMAP_DSS_UPDATE_AUTO: ++ *mode = OMAPFB_AUTO_UPDATE; ++ break; ++ case OMAP_DSS_UPDATE_MANUAL: ++ *mode = OMAPFB_MANUAL_UPDATE; ++ break; ++ default: ++ BUG(); ++ } ++ ++ return 0; ++} ++ ++/* XXX this color key handling is a hack... */ ++static struct omapfb_color_key omapfb_color_keys[2]; ++ ++static int _omapfb_set_color_key(struct omap_overlay_manager *mgr, ++ struct omapfb_color_key *ck) ++{ ++ struct omap_overlay_manager_info info; ++ enum omap_dss_trans_key_type kt; ++ int r; ++ ++ mgr->get_manager_info(mgr, &info); ++ ++ if (ck->key_type == OMAPFB_COLOR_KEY_DISABLED) { ++ info.trans_enabled = false; ++ omapfb_color_keys[mgr->id] = *ck; ++ ++ r = mgr->set_manager_info(mgr, &info); ++ if (r) ++ return r; ++ ++ r = mgr->apply(mgr); ++ ++ return r; ++ } ++ ++ switch (ck->key_type) { ++ case OMAPFB_COLOR_KEY_GFX_DST: ++ kt = OMAP_DSS_COLOR_KEY_GFX_DST; ++ break; ++ case OMAPFB_COLOR_KEY_VID_SRC: ++ kt = OMAP_DSS_COLOR_KEY_VID_SRC; ++ break; ++ default: ++ return -EINVAL; ++ } ++ ++ info.default_color = ck->background; ++ info.trans_key = ck->trans_key; ++ info.trans_key_type = kt; ++ info.trans_enabled = true; ++ ++ omapfb_color_keys[mgr->id] = *ck; ++ ++ r = mgr->set_manager_info(mgr, &info); ++ if (r) ++ return r; ++ ++ r = mgr->apply(mgr); ++ ++ return r; ++} ++ ++static int omapfb_set_color_key(struct fb_info *fbi, ++ struct omapfb_color_key *ck) ++{ ++ struct omapfb_info *ofbi = FB2OFB(fbi); ++ struct omapfb2_device *fbdev = ofbi->fbdev; ++ int r; ++ int i; ++ struct omap_overlay_manager *mgr = NULL; ++ ++ omapfb_lock(fbdev); ++ ++ for (i = 0; i < ofbi->num_overlays; i++) { ++ if (ofbi->overlays[i]->manager) { ++ mgr = ofbi->overlays[i]->manager; ++ break; ++ } ++ } ++ ++ if (!mgr) { ++ r = -EINVAL; ++ goto err; ++ } ++ ++ r = _omapfb_set_color_key(mgr, ck); ++err: ++ omapfb_unlock(fbdev); ++ ++ return r; ++} ++ ++static int omapfb_get_color_key(struct fb_info *fbi, ++ struct omapfb_color_key *ck) ++{ ++ struct omapfb_info *ofbi = FB2OFB(fbi); ++ struct omapfb2_device *fbdev = ofbi->fbdev; ++ struct omap_overlay_manager *mgr = NULL; ++ int r = 0; ++ int i; ++ ++ omapfb_lock(fbdev); ++ ++ for (i = 0; i < ofbi->num_overlays; i++) { ++ if (ofbi->overlays[i]->manager) { ++ mgr = ofbi->overlays[i]->manager; ++ break; ++ } ++ } ++ ++ if (!mgr) { ++ r = -EINVAL; ++ goto err; ++ } ++ ++ *ck = omapfb_color_keys[mgr->id]; ++err: ++ omapfb_unlock(fbdev); ++ ++ return r; ++} ++ ++static int omapfb_memory_read(struct fb_info *fbi, ++ struct omapfb_memory_read *mr) ++{ ++ struct omap_dss_device *display = fb2display(fbi); ++ void *buf; ++ int r; ++ ++ if (!display || !display->memory_read) ++ return -ENOENT; ++ ++ if (!access_ok(VERIFY_WRITE, mr->buffer, mr->buffer_size)) ++ return -EFAULT; ++ ++ if (mr->w * mr->h * 3 > mr->buffer_size) ++ return -EINVAL; ++ ++ buf = vmalloc(mr->buffer_size); ++ if (!buf) { ++ DBG("vmalloc failed\n"); ++ return -ENOMEM; ++ } ++ ++ r = display->memory_read(display, buf, mr->buffer_size, ++ mr->x, mr->y, mr->w, mr->h); ++ ++ if (r > 0) { ++ if (copy_to_user(mr->buffer, buf, mr->buffer_size)) ++ r = -EFAULT; ++ } ++ ++ vfree(buf); ++ ++ return r; ++} ++ ++static int omapfb_get_ovl_colormode(struct omapfb2_device *fbdev, ++ struct omapfb_ovl_colormode *mode) ++{ ++ int ovl_idx = mode->overlay_idx; ++ int mode_idx = mode->mode_idx; ++ struct omap_overlay *ovl; ++ enum omap_color_mode supported_modes; ++ struct fb_var_screeninfo var; ++ int i; ++ ++ if (ovl_idx >= fbdev->num_overlays) ++ return -ENODEV; ++ ovl = fbdev->overlays[ovl_idx]; ++ supported_modes = ovl->supported_modes; ++ ++ mode_idx = mode->mode_idx; ++ ++ for (i = 0; i < sizeof(supported_modes) * 8; i++) { ++ if (!(supported_modes & (1 << i))) ++ continue; ++ /* ++ * It's possible that the FB doesn't support a mode ++ * that is supported by the overlay, so call the ++ * following here. ++ */ ++ if (dss_mode_to_fb_mode(1 << i, &var) < 0) ++ continue; ++ ++ mode_idx--; ++ if (mode_idx < 0) ++ break; ++ } ++ ++ if (i == sizeof(supported_modes) * 8) ++ return -ENOENT; ++ ++ mode->bits_per_pixel = var.bits_per_pixel; ++ mode->nonstd = var.nonstd; ++ mode->red = var.red; ++ mode->green = var.green; ++ mode->blue = var.blue; ++ mode->transp = var.transp; ++ ++ return 0; ++} ++ ++static int omapfb_wait_for_go(struct fb_info *fbi) ++{ ++ struct omapfb_info *ofbi = FB2OFB(fbi); ++ int r = 0; ++ int i; ++ ++ for (i = 0; i < ofbi->num_overlays; ++i) { ++ struct omap_overlay *ovl = ofbi->overlays[i]; ++ r = ovl->wait_for_go(ovl); ++ if (r) ++ break; ++ } ++ ++ return r; ++} ++ ++int omapfb_ioctl(struct fb_info *fbi, unsigned int cmd, unsigned long arg) ++{ ++ struct omapfb_info *ofbi = FB2OFB(fbi); ++ struct omapfb2_device *fbdev = ofbi->fbdev; ++ struct omap_dss_device *display = fb2display(fbi); ++ ++ union { ++ struct omapfb_update_window_old uwnd_o; ++ struct omapfb_update_window uwnd; ++ struct omapfb_plane_info plane_info; ++ struct omapfb_caps caps; ++ struct omapfb_mem_info mem_info; ++ struct omapfb_color_key color_key; ++ struct omapfb_ovl_colormode ovl_colormode; ++ enum omapfb_update_mode update_mode; ++ int test_num; ++ struct omapfb_memory_read memory_read; ++ struct omapfb_vram_info vram_info; ++ } p; ++ ++ int r = 0; ++ ++ switch (cmd) { ++ case OMAPFB_SYNC_GFX: ++ DBG("ioctl SYNC_GFX\n"); ++ if (!display || !display->sync) { ++ /* DSS1 never returns an error here, so we neither */ ++ /*r = -EINVAL;*/ ++ break; ++ } ++ ++ r = display->sync(display); ++ break; ++ ++ case OMAPFB_UPDATE_WINDOW_OLD: ++ DBG("ioctl UPDATE_WINDOW_OLD\n"); ++ if (!display || !display->update) { ++ r = -EINVAL; ++ break; ++ } ++ ++ if (copy_from_user(&p.uwnd_o, ++ (void __user *)arg, ++ sizeof(p.uwnd_o))) { ++ r = -EFAULT; ++ break; ++ } ++ ++ r = omapfb_update_window(fbi, p.uwnd_o.x, p.uwnd_o.y, ++ p.uwnd_o.width, p.uwnd_o.height); ++ break; ++ ++ case OMAPFB_UPDATE_WINDOW: ++ DBG("ioctl UPDATE_WINDOW\n"); ++ if (!display || !display->update) { ++ r = -EINVAL; ++ break; ++ } ++ ++ if (copy_from_user(&p.uwnd, (void __user *)arg, ++ sizeof(p.uwnd))) { ++ r = -EFAULT; ++ break; ++ } ++ ++ r = omapfb_update_window(fbi, p.uwnd.x, p.uwnd.y, ++ p.uwnd.width, p.uwnd.height); ++ break; ++ ++ case OMAPFB_SETUP_PLANE: ++ DBG("ioctl SETUP_PLANE\n"); ++ if (copy_from_user(&p.plane_info, (void __user *)arg, ++ sizeof(p.plane_info))) ++ r = -EFAULT; ++ else ++ r = omapfb_setup_plane(fbi, &p.plane_info); ++ break; ++ ++ case OMAPFB_QUERY_PLANE: ++ DBG("ioctl QUERY_PLANE\n"); ++ r = omapfb_query_plane(fbi, &p.plane_info); ++ if (r < 0) ++ break; ++ if (copy_to_user((void __user *)arg, &p.plane_info, ++ sizeof(p.plane_info))) ++ r = -EFAULT; ++ break; ++ ++ case OMAPFB_SETUP_MEM: ++ DBG("ioctl SETUP_MEM\n"); ++ if (copy_from_user(&p.mem_info, (void __user *)arg, ++ sizeof(p.mem_info))) ++ r = -EFAULT; ++ else ++ r = omapfb_setup_mem(fbi, &p.mem_info); ++ break; ++ ++ case OMAPFB_QUERY_MEM: ++ DBG("ioctl QUERY_MEM\n"); ++ r = omapfb_query_mem(fbi, &p.mem_info); ++ if (r < 0) ++ break; ++ if (copy_to_user((void __user *)arg, &p.mem_info, ++ sizeof(p.mem_info))) ++ r = -EFAULT; ++ break; ++ ++ case OMAPFB_GET_CAPS: ++ DBG("ioctl GET_CAPS\n"); ++ if (!display) { ++ r = -EINVAL; ++ break; ++ } ++ ++ memset(&p.caps, 0, sizeof(p.caps)); ++ p.caps.ctrl = display->caps; ++ ++ if (copy_to_user((void __user *)arg, &p.caps, sizeof(p.caps))) ++ r = -EFAULT; ++ break; ++ ++ case OMAPFB_GET_OVERLAY_COLORMODE: ++ DBG("ioctl GET_OVERLAY_COLORMODE\n"); ++ if (copy_from_user(&p.ovl_colormode, (void __user *)arg, ++ sizeof(p.ovl_colormode))) { ++ r = -EFAULT; ++ break; ++ } ++ r = omapfb_get_ovl_colormode(fbdev, &p.ovl_colormode); ++ if (r < 0) ++ break; ++ if (copy_to_user((void __user *)arg, &p.ovl_colormode, ++ sizeof(p.ovl_colormode))) ++ r = -EFAULT; ++ break; ++ ++ case OMAPFB_SET_UPDATE_MODE: ++ DBG("ioctl SET_UPDATE_MODE\n"); ++ if (get_user(p.update_mode, (int __user *)arg)) ++ r = -EFAULT; ++ else ++ r = omapfb_set_update_mode(fbi, p.update_mode); ++ break; ++ ++ case OMAPFB_GET_UPDATE_MODE: ++ DBG("ioctl GET_UPDATE_MODE\n"); ++ r = omapfb_get_update_mode(fbi, &p.update_mode); ++ if (r) ++ break; ++ if (put_user(p.update_mode, ++ (enum omapfb_update_mode __user *)arg)) ++ r = -EFAULT; ++ break; ++ ++ case OMAPFB_SET_COLOR_KEY: ++ DBG("ioctl SET_COLOR_KEY\n"); ++ if (copy_from_user(&p.color_key, (void __user *)arg, ++ sizeof(p.color_key))) ++ r = -EFAULT; ++ else ++ r = omapfb_set_color_key(fbi, &p.color_key); ++ break; ++ ++ case OMAPFB_GET_COLOR_KEY: ++ DBG("ioctl GET_COLOR_KEY\n"); ++ r = omapfb_get_color_key(fbi, &p.color_key); ++ if (r) ++ break; ++ if (copy_to_user((void __user *)arg, &p.color_key, ++ sizeof(p.color_key))) ++ r = -EFAULT; ++ break; ++ ++ case OMAPFB_WAITFORVSYNC: ++ DBG("ioctl WAITFORVSYNC\n"); ++ if (!display) { ++ r = -EINVAL; ++ break; ++ } ++ ++ r = display->wait_vsync(display); ++ break; ++ ++ case OMAPFB_WAITFORGO: ++ DBG("ioctl WAITFORGO\n"); ++ if (!display) { ++ r = -EINVAL; ++ break; ++ } ++ ++ r = omapfb_wait_for_go(fbi); ++ break; ++ ++ /* LCD and CTRL tests do the same thing for backward ++ * compatibility */ ++ case OMAPFB_LCD_TEST: ++ DBG("ioctl LCD_TEST\n"); ++ if (get_user(p.test_num, (int __user *)arg)) { ++ r = -EFAULT; ++ break; ++ } ++ if (!display || !display->run_test) { ++ r = -EINVAL; ++ break; ++ } ++ ++ r = display->run_test(display, p.test_num); ++ ++ break; ++ ++ case OMAPFB_CTRL_TEST: ++ DBG("ioctl CTRL_TEST\n"); ++ if (get_user(p.test_num, (int __user *)arg)) { ++ r = -EFAULT; ++ break; ++ } ++ if (!display || !display->run_test) { ++ r = -EINVAL; ++ break; ++ } ++ ++ r = display->run_test(display, p.test_num); ++ ++ break; ++ ++ case OMAPFB_MEMORY_READ: ++ DBG("ioctl MEMORY_READ\n"); ++ ++ if (copy_from_user(&p.memory_read, (void __user *)arg, ++ sizeof(p.memory_read))) { ++ r = -EFAULT; ++ break; ++ } ++ ++ r = omapfb_memory_read(fbi, &p.memory_read); ++ ++ break; ++ ++ case OMAPFB_GET_VRAM_INFO: { ++ unsigned long vram, free, largest; ++ ++ DBG("ioctl GET_VRAM_INFO\n"); ++ ++ omap_vram_get_info(&vram, &free, &largest); ++ p.vram_info.total = vram; ++ p.vram_info.free = free; ++ p.vram_info.largest_free_block = largest; ++ ++ if (copy_to_user((void __user *)arg, &p.vram_info, ++ sizeof(p.vram_info))) ++ r = -EFAULT; ++ break; ++ } ++ ++ default: ++ dev_err(fbdev->dev, "Unknown ioctl 0x%x\n", cmd); ++ r = -EINVAL; ++ } ++ ++ if (r < 0) ++ DBG("ioctl failed: %d\n", r); ++ ++ return r; ++} ++ ++ +diff --git a/drivers/video/omap2/omapfb/omapfb-main.c b/drivers/video/omap2/omapfb/omapfb-main.c +new file mode 100644 +index 0000000..7f5ec3b +--- /dev/null ++++ b/drivers/video/omap2/omapfb/omapfb-main.c +@@ -0,0 +1,2137 @@ ++/* ++ * linux/drivers/video/omap2/omapfb-main.c ++ * ++ * Copyright (C) 2008 Nokia Corporation ++ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com> ++ * ++ * Some code and ideas taken from drivers/video/omap/ driver ++ * by Imre Deak. ++ * ++ * This program is free software; you can redistribute it and/or modify it ++ * under the terms of the GNU General Public License version 2 as published by ++ * the Free Software Foundation. ++ * ++ * This program is distributed in the hope that it will be useful, but WITHOUT ++ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or ++ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for ++ * more details. ++ * ++ * You should have received a copy of the GNU General Public License along with ++ * this program. If not, see <http://www.gnu.org/licenses/>. ++ */ ++ ++#include <linux/module.h> ++#include <linux/delay.h> ++#include <linux/fb.h> ++#include <linux/dma-mapping.h> ++#include <linux/vmalloc.h> ++#include <linux/device.h> ++#include <linux/platform_device.h> ++#include <linux/omapfb.h> ++ ++#include <mach/display.h> ++#include <mach/vram.h> ++#include <mach/vrfb.h> ++ ++#include "omapfb.h" ++ ++#define MODULE_NAME "omapfb" ++ ++#define OMAPFB_PLANE_XRES_MIN 8 ++#define OMAPFB_PLANE_YRES_MIN 8 ++ ++static char *def_mode; ++static char *def_vram; ++static int def_vrfb; ++static int def_rotate; ++static int def_mirror; ++ ++#ifdef DEBUG ++unsigned int omapfb_debug; ++module_param_named(debug, omapfb_debug, bool, 0644); ++static unsigned int omapfb_test_pattern; ++module_param_named(test, omapfb_test_pattern, bool, 0644); ++#endif ++ ++static int omapfb_fb_init(struct omapfb2_device *fbdev, struct fb_info *fbi); ++ ++#ifdef DEBUG ++static void draw_pixel(struct fb_info *fbi, int x, int y, unsigned color) ++{ ++ struct fb_var_screeninfo *var = &fbi->var; ++ struct fb_fix_screeninfo *fix = &fbi->fix; ++ void __iomem *addr = fbi->screen_base; ++ const unsigned bytespp = var->bits_per_pixel >> 3; ++ const unsigned line_len = fix->line_length / bytespp; ++ ++ int r = (color >> 16) & 0xff; ++ int g = (color >> 8) & 0xff; ++ int b = (color >> 0) & 0xff; ++ ++ if (var->bits_per_pixel == 16) { ++ u16 __iomem *p = (u16 __iomem *)addr; ++ p += y * line_len + x; ++ ++ r = r * 32 / 256; ++ g = g * 64 / 256; ++ b = b * 32 / 256; ++ ++ __raw_writew((r << 11) | (g << 5) | (b << 0), p); ++ } else if (var->bits_per_pixel == 24) { ++ u8 __iomem *p = (u8 __iomem *)addr; ++ p += (y * line_len + x) * 3; ++ ++ __raw_writeb(b, p + 0); ++ __raw_writeb(g, p + 1); ++ __raw_writeb(r, p + 2); ++ } else if (var->bits_per_pixel == 32) { ++ u32 __iomem *p = (u32 __iomem *)addr; ++ p += y * line_len + x; ++ __raw_writel(color, p); ++ } ++} ++ ++static void fill_fb(struct fb_info *fbi) ++{ ++ struct fb_var_screeninfo *var = &fbi->var; ++ const short w = var->xres_virtual; ++ const short h = var->yres_virtual; ++ void __iomem *addr = fbi->screen_base; ++ int y, x; ++ ++ if (!addr) ++ return; ++ ++ DBG("fill_fb %dx%d, line_len %d bytes\n", w, h, fbi->fix.line_length); ++ ++ for (y = 0; y < h; y++) { ++ for (x = 0; x < w; x++) { ++ if (x < 20 && y < 20) ++ draw_pixel(fbi, x, y, 0xffffff); ++ else if (x < 20 && (y > 20 && y < h - 20)) ++ draw_pixel(fbi, x, y, 0xff); ++ else if (y < 20 && (x > 20 && x < w - 20)) ++ draw_pixel(fbi, x, y, 0xff00); ++ else if (x > w - 20 && (y > 20 && y < h - 20)) ++ draw_pixel(fbi, x, y, 0xff0000); ++ else if (y > h - 20 && (x > 20 && x < w - 20)) ++ draw_pixel(fbi, x, y, 0xffff00); ++ else if (x == 20 || x == w - 20 || ++ y == 20 || y == h - 20) ++ draw_pixel(fbi, x, y, 0xffffff); ++ else if (x == y || w - x == h - y) ++ draw_pixel(fbi, x, y, 0xff00ff); ++ else if (w - x == y || x == h - y) ++ draw_pixel(fbi, x, y, 0x00ffff); ++ else if (x > 20 && y > 20 && x < w - 20 && y < h - 20) { ++ int t = x * 3 / w; ++ unsigned r = 0, g = 0, b = 0; ++ unsigned c; ++ if (var->bits_per_pixel == 16) { ++ if (t == 0) ++ b = (y % 32) * 256 / 32; ++ else if (t == 1) ++ g = (y % 64) * 256 / 64; ++ else if (t == 2) ++ r = (y % 32) * 256 / 32; ++ } else { ++ if (t == 0) ++ b = (y % 256); ++ else if (t == 1) ++ g = (y % 256); ++ else if (t == 2) ++ r = (y % 256); ++ } ++ c = (r << 16) | (g << 8) | (b << 0); ++ draw_pixel(fbi, x, y, c); ++ } else { ++ draw_pixel(fbi, x, y, 0); ++ } ++ } ++ } ++} ++#endif ++ ++static unsigned omapfb_get_vrfb_offset(struct omapfb_info *ofbi, int rot) ++{ ++ struct vrfb *vrfb = &ofbi->region.vrfb; ++ unsigned offset; ++ ++ switch (rot) { ++ case FB_ROTATE_UR: ++ offset = 0; ++ break; ++ case FB_ROTATE_CW: ++ offset = vrfb->yoffset; ++ break; ++ case FB_ROTATE_UD: ++ offset = vrfb->yoffset * OMAP_VRFB_LINE_LEN + vrfb->xoffset; ++ break; ++ case FB_ROTATE_CCW: ++ offset = vrfb->xoffset * OMAP_VRFB_LINE_LEN; ++ break; ++ default: ++ BUG(); ++ } ++ ++ offset *= vrfb->bytespp; ++ ++ return offset; ++} ++ ++static u32 omapfb_get_region_rot_paddr(struct omapfb_info *ofbi, int rot) ++{ ++ if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) { ++ return ofbi->region.vrfb.paddr[rot] ++ + omapfb_get_vrfb_offset(ofbi, rot); ++ } else { ++ return ofbi->region.paddr; ++ } ++} ++ ++static u32 omapfb_get_region_paddr(struct omapfb_info *ofbi) ++{ ++ if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) ++ return ofbi->region.vrfb.paddr[0]; ++ else ++ return ofbi->region.paddr; ++} ++ ++static void __iomem *omapfb_get_region_vaddr(struct omapfb_info *ofbi) ++{ ++ if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) ++ return ofbi->region.vrfb.vaddr[0]; ++ else ++ return ofbi->region.vaddr; ++} ++ ++static struct omapfb_colormode omapfb_colormodes[] = { ++ { ++ .dssmode = OMAP_DSS_COLOR_UYVY, ++ .bits_per_pixel = 16, ++ .nonstd = OMAPFB_COLOR_YUV422, ++ }, { ++ .dssmode = OMAP_DSS_COLOR_YUV2, ++ .bits_per_pixel = 16, ++ .nonstd = OMAPFB_COLOR_YUY422, ++ }, { ++ .dssmode = OMAP_DSS_COLOR_ARGB16, ++ .bits_per_pixel = 16, ++ .red = { .length = 4, .offset = 8, .msb_right = 0 }, ++ .green = { .length = 4, .offset = 4, .msb_right = 0 }, ++ .blue = { .length = 4, .offset = 0, .msb_right = 0 }, ++ .transp = { .length = 4, .offset = 12, .msb_right = 0 }, ++ }, { ++ .dssmode = OMAP_DSS_COLOR_RGB16, ++ .bits_per_pixel = 16, ++ .red = { .length = 5, .offset = 11, .msb_right = 0 }, ++ .green = { .length = 6, .offset = 5, .msb_right = 0 }, ++ .blue = { .length = 5, .offset = 0, .msb_right = 0 }, ++ .transp = { .length = 0, .offset = 0, .msb_right = 0 }, ++ }, { ++ .dssmode = OMAP_DSS_COLOR_RGB24P, ++ .bits_per_pixel = 24, ++ .red = { .length = 8, .offset = 16, .msb_right = 0 }, ++ .green = { .length = 8, .offset = 8, .msb_right = 0 }, ++ .blue = { .length = 8, .offset = 0, .msb_right = 0 }, ++ .transp = { .length = 0, .offset = 0, .msb_right = 0 }, ++ }, { ++ .dssmode = OMAP_DSS_COLOR_RGB24U, ++ .bits_per_pixel = 32, ++ .red = { .length = 8, .offset = 16, .msb_right = 0 }, ++ .green = { .length = 8, .offset = 8, .msb_right = 0 }, ++ .blue = { .length = 8, .offset = 0, .msb_right = 0 }, ++ .transp = { .length = 0, .offset = 0, .msb_right = 0 }, ++ }, { ++ .dssmode = OMAP_DSS_COLOR_ARGB32, ++ .bits_per_pixel = 32, ++ .red = { .length = 8, .offset = 16, .msb_right = 0 }, ++ .green = { .length = 8, .offset = 8, .msb_right = 0 }, ++ .blue = { .length = 8, .offset = 0, .msb_right = 0 }, ++ .transp = { .length = 8, .offset = 24, .msb_right = 0 }, ++ }, { ++ .dssmode = OMAP_DSS_COLOR_RGBA32, ++ .bits_per_pixel = 32, ++ .red = { .length = 8, .offset = 24, .msb_right = 0 }, ++ .green = { .length = 8, .offset = 16, .msb_right = 0 }, ++ .blue = { .length = 8, .offset = 8, .msb_right = 0 }, ++ .transp = { .length = 8, .offset = 0, .msb_right = 0 }, ++ }, { ++ .dssmode = OMAP_DSS_COLOR_RGBX32, ++ .bits_per_pixel = 32, ++ .red = { .length = 8, .offset = 24, .msb_right = 0 }, ++ .green = { .length = 8, .offset = 16, .msb_right = 0 }, ++ .blue = { .length = 8, .offset = 8, .msb_right = 0 }, ++ .transp = { .length = 0, .offset = 0, .msb_right = 0 }, ++ }, ++}; ++ ++static bool cmp_var_to_colormode(struct fb_var_screeninfo *var, ++ struct omapfb_colormode *color) ++{ ++ bool cmp_component(struct fb_bitfield *f1, struct fb_bitfield *f2) ++ { ++ return f1->length == f2->length && ++ f1->offset == f2->offset && ++ f1->msb_right == f2->msb_right; ++ } ++ ++ if (var->bits_per_pixel == 0 || ++ var->red.length == 0 || ++ var->blue.length == 0 || ++ var->green.length == 0) ++ return 0; ++ ++ return var->bits_per_pixel == color->bits_per_pixel && ++ cmp_component(&var->red, &color->red) && ++ cmp_component(&var->green, &color->green) && ++ cmp_component(&var->blue, &color->blue) && ++ cmp_component(&var->transp, &color->transp); ++} ++ ++static void assign_colormode_to_var(struct fb_var_screeninfo *var, ++ struct omapfb_colormode *color) ++{ ++ var->bits_per_pixel = color->bits_per_pixel; ++ var->nonstd = color->nonstd; ++ var->red = color->red; ++ var->green = color->green; ++ var->blue = color->blue; ++ var->transp = color->transp; ++} ++ ++static enum omap_color_mode fb_mode_to_dss_mode(struct fb_var_screeninfo *var) ++{ ++ enum omap_color_mode dssmode; ++ int i; ++ ++ /* first match with nonstd field */ ++ if (var->nonstd) { ++ for (i = 0; i < ARRAY_SIZE(omapfb_colormodes); ++i) { ++ struct omapfb_colormode *mode = &omapfb_colormodes[i]; ++ if (var->nonstd == mode->nonstd) { ++ assign_colormode_to_var(var, mode); ++ return mode->dssmode; ++ } ++ } ++ ++ return -EINVAL; ++ } ++ ++ /* then try exact match of bpp and colors */ ++ for (i = 0; i < ARRAY_SIZE(omapfb_colormodes); ++i) { ++ struct omapfb_colormode *mode = &omapfb_colormodes[i]; ++ if (cmp_var_to_colormode(var, mode)) { ++ assign_colormode_to_var(var, mode); ++ return mode->dssmode; ++ } ++ } ++ ++ /* match with bpp if user has not filled color fields ++ * properly */ ++ switch (var->bits_per_pixel) { ++ case 1: ++ dssmode = OMAP_DSS_COLOR_CLUT1; ++ break; ++ case 2: ++ dssmode = OMAP_DSS_COLOR_CLUT2; ++ break; ++ case 4: ++ dssmode = OMAP_DSS_COLOR_CLUT4; ++ break; ++ case 8: ++ dssmode = OMAP_DSS_COLOR_CLUT8; ++ break; ++ case 12: ++ dssmode = OMAP_DSS_COLOR_RGB12U; ++ break; ++ case 16: ++ dssmode = OMAP_DSS_COLOR_RGB16; ++ break; ++ case 24: ++ dssmode = OMAP_DSS_COLOR_RGB24P; ++ break; ++ case 32: ++ dssmode = OMAP_DSS_COLOR_RGB24U; ++ break; ++ default: ++ return -EINVAL; ++ } ++ ++ for (i = 0; i < ARRAY_SIZE(omapfb_colormodes); ++i) { ++ struct omapfb_colormode *mode = &omapfb_colormodes[i]; ++ if (dssmode == mode->dssmode) { ++ assign_colormode_to_var(var, mode); ++ return mode->dssmode; ++ } ++ } ++ ++ return -EINVAL; ++} ++ ++int dss_mode_to_fb_mode(enum omap_color_mode dssmode, ++ struct fb_var_screeninfo *var) ++{ ++ int i; ++ ++ for (i = 0; i < ARRAY_SIZE(omapfb_colormodes); ++i) { ++ struct omapfb_colormode *mode = &omapfb_colormodes[i]; ++ if (dssmode == mode->dssmode) { ++ assign_colormode_to_var(var, mode); ++ return 0; ++ } ++ } ++ return -ENOENT; ++} ++ ++void set_fb_fix(struct fb_info *fbi) ++{ ++ struct fb_fix_screeninfo *fix = &fbi->fix; ++ struct fb_var_screeninfo *var = &fbi->var; ++ struct omapfb_info *ofbi = FB2OFB(fbi); ++ struct omapfb2_mem_region *rg = &ofbi->region; ++ ++ DBG("set_fb_fix\n"); ++ ++ /* used by open/write in fbmem.c */ ++ fbi->screen_base = (char __iomem *)omapfb_get_region_vaddr(ofbi); ++ ++ DBG("changing rotation to %d\n", var->rotate); ++ ++ /* used by mmap in fbmem.c */ ++ if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) { ++ switch (var->nonstd) { ++ case OMAPFB_COLOR_YUV422: ++ case OMAPFB_COLOR_YUY422: ++ fix->line_length = ++ (OMAP_VRFB_LINE_LEN * var->bits_per_pixel) >> 2; ++ break; ++ default: ++ fix->line_length = ++ (OMAP_VRFB_LINE_LEN * var->bits_per_pixel) >> 3; ++ break; ++ } ++ } else ++ fix->line_length = ++ (var->xres_virtual * var->bits_per_pixel) >> 3; ++ fix->smem_start = omapfb_get_region_paddr(ofbi); ++ fix->smem_len = rg->size; ++ ++ fix->type = FB_TYPE_PACKED_PIXELS; ++ ++ if (var->nonstd) ++ fix->visual = FB_VISUAL_PSEUDOCOLOR; ++ else { ++ switch (var->bits_per_pixel) { ++ case 32: ++ case 24: ++ case 16: ++ case 12: ++ fix->visual = FB_VISUAL_TRUECOLOR; ++ /* 12bpp is stored in 16 bits */ ++ break; ++ case 1: ++ case 2: ++ case 4: ++ case 8: ++ fix->visual = FB_VISUAL_PSEUDOCOLOR; ++ break; ++ } ++ } ++ ++ fix->accel = FB_ACCEL_NONE; ++ ++ fix->xpanstep = 1; ++ fix->ypanstep = 1; ++ ++ if (rg->size && ofbi->rotation_type == OMAP_DSS_ROT_VRFB) { ++ unsigned bytespp; ++ bool yuv_mode; ++ enum omap_color_mode mode; ++ ++ mode = fb_mode_to_dss_mode(var); ++ ++ bytespp = var->bits_per_pixel >> 3; ++ ++ if (mode == OMAP_DSS_COLOR_YUV2 || mode == OMAP_DSS_COLOR_UYVY) ++ yuv_mode = true; ++ else ++ yuv_mode = false; ++ ++ omap_vrfb_setup(&rg->vrfb, rg->paddr, ++ var->xres_virtual, ++ var->yres_virtual, ++ bytespp, yuv_mode); ++ } ++} ++ ++/* check new var and possibly modify it to be ok */ ++int check_fb_var(struct fb_info *fbi, struct fb_var_screeninfo *var) ++{ ++ struct omapfb_info *ofbi = FB2OFB(fbi); ++ struct omap_dss_device *display = fb2display(fbi); ++ unsigned long max_frame_size; ++ unsigned long line_size; ++ int xres_min, yres_min; ++ int xres_max, yres_max; ++ enum omap_color_mode mode = 0; ++ int i; ++ int bytespp; ++ ++ DBG("check_fb_var %d\n", ofbi->id); ++ ++ if (ofbi->region.size == 0) ++ return 0; ++ ++ mode = fb_mode_to_dss_mode(var); ++ if (mode < 0) { ++ DBG("cannot convert var to omap dss mode\n"); ++ return -EINVAL; ++ } ++ ++ for (i = 0; i < ofbi->num_overlays; ++i) { ++ if ((ofbi->overlays[i]->supported_modes & mode) == 0) { ++ DBG("invalid mode\n"); ++ return -EINVAL; ++ } ++ } ++ ++ if (var->rotate < 0 || var->rotate > 3) ++ return -EINVAL; ++ ++ xres_min = OMAPFB_PLANE_XRES_MIN; ++ xres_max = 2048; ++ yres_min = OMAPFB_PLANE_YRES_MIN; ++ yres_max = 2048; ++ ++ bytespp = var->bits_per_pixel >> 3; ++ ++ /* XXX: some applications seem to set virtual res to 0. */ ++ if (var->xres_virtual == 0) ++ var->xres_virtual = var->xres; ++ ++ if (var->yres_virtual == 0) ++ var->yres_virtual = var->yres; ++ ++ if (var->xres_virtual < xres_min || var->yres_virtual < yres_min) ++ return -EINVAL; ++ ++ if (var->xres < xres_min) ++ var->xres = xres_min; ++ if (var->yres < yres_min) ++ var->yres = yres_min; ++ if (var->xres > xres_max) ++ var->xres = xres_max; ++ if (var->yres > yres_max) ++ var->yres = yres_max; ++ ++ if (var->xres > var->xres_virtual) ++ var->xres = var->xres_virtual; ++ if (var->yres > var->yres_virtual) ++ var->yres = var->yres_virtual; ++ ++ if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) ++ line_size = OMAP_VRFB_LINE_LEN * bytespp; ++ else ++ line_size = var->xres_virtual * bytespp; ++ ++ max_frame_size = ofbi->region.size; ++ ++ DBG("max frame size %lu, line size %lu\n", max_frame_size, line_size); ++ ++ if (line_size * var->yres_virtual > max_frame_size) { ++ DBG("can't fit FB into memory, reducing y\n"); ++ var->yres_virtual = max_frame_size / line_size; ++ ++ if (var->yres_virtual < yres_min) ++ var->yres_virtual = yres_min; ++ ++ if (var->yres > var->yres_virtual) ++ var->yres = var->yres_virtual; ++ } ++ ++ if (line_size * var->yres_virtual > max_frame_size) { ++ DBG("can't fit FB into memory, reducing x\n"); ++ if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) ++ return -EINVAL; ++ ++ var->xres_virtual = max_frame_size / var->yres_virtual / ++ bytespp; ++ ++ if (var->xres_virtual < xres_min) ++ var->xres_virtual = xres_min; ++ ++ if (var->xres > var->xres_virtual) ++ var->xres = var->xres_virtual; ++ ++ line_size = var->xres_virtual * bytespp; ++ } ++ ++ if (line_size * var->yres_virtual > max_frame_size) { ++ DBG("cannot fit FB to memory\n"); ++ return -EINVAL; ++ } ++ ++ if (var->xres + var->xoffset > var->xres_virtual) ++ var->xoffset = var->xres_virtual - var->xres; ++ if (var->yres + var->yoffset > var->yres_virtual) ++ var->yoffset = var->yres_virtual - var->yres; ++ ++ DBG("xres = %d, yres = %d, vxres = %d, vyres = %d\n", ++ var->xres, var->yres, ++ var->xres_virtual, var->yres_virtual); ++ ++ var->height = -1; ++ var->width = -1; ++ var->grayscale = 0; ++ ++ if (display && display->get_timings) { ++ struct omap_video_timings timings; ++ display->get_timings(display, &timings); ++ ++ /* pixclock in ps, the rest in pixclock */ ++ var->pixclock = timings.pixel_clock != 0 ? ++ KHZ2PICOS(timings.pixel_clock) : ++ 0; ++ var->left_margin = timings.hfp; ++ var->right_margin = timings.hbp; ++ var->upper_margin = timings.vfp; ++ var->lower_margin = timings.vbp; ++ var->hsync_len = timings.hsw; ++ var->vsync_len = timings.vsw; ++ } else { ++ var->pixclock = 0; ++ var->left_margin = 0; ++ var->right_margin = 0; ++ var->upper_margin = 0; ++ var->lower_margin = 0; ++ var->hsync_len = 0; ++ var->vsync_len = 0; ++ } ++ ++ /* TODO: get these from panel->config */ ++ var->vmode = FB_VMODE_NONINTERLACED; ++ var->sync = 0; ++ ++ return 0; ++} ++ ++/* ++ * --------------------------------------------------------------------------- ++ * fbdev framework callbacks ++ * --------------------------------------------------------------------------- ++ */ ++static int omapfb_open(struct fb_info *fbi, int user) ++{ ++ return 0; ++} ++ ++static int omapfb_release(struct fb_info *fbi, int user) ++{ ++#if 0 ++ struct omapfb_info *ofbi = FB2OFB(fbi); ++ struct omapfb2_device *fbdev = ofbi->fbdev; ++ struct omap_dss_device *display = fb2display(fbi); ++ ++ DBG("Closing fb with plane index %d\n", ofbi->id); ++ ++ omapfb_lock(fbdev); ++ ++ if (display && display->get_update_mode && display->update) { ++ /* XXX this update should be removed, I think. But it's ++ * good for debugging */ ++ if (display->get_update_mode(display) == ++ OMAP_DSS_UPDATE_MANUAL) { ++ u16 w, h; ++ ++ if (display->sync) ++ display->sync(display); ++ ++ display->get_resolution(display, &w, &h); ++ display->update(display, 0, 0, w, h); ++ } ++ } ++ ++ if (display && display->sync) ++ display->sync(display); ++ ++ omapfb_unlock(fbdev); ++#endif ++ return 0; ++} ++ ++/* setup overlay according to the fb */ ++static int omapfb_setup_overlay(struct fb_info *fbi, struct omap_overlay *ovl, ++ u16 posx, u16 posy, u16 outw, u16 outh) ++{ ++ int r = 0; ++ struct omapfb_info *ofbi = FB2OFB(fbi); ++ struct fb_var_screeninfo *var = &fbi->var; ++ struct fb_fix_screeninfo *fix = &fbi->fix; ++ enum omap_color_mode mode = 0; ++ int offset; ++ u32 data_start_p; ++ void __iomem *data_start_v; ++ struct omap_overlay_info info; ++ int xres, yres; ++ int screen_width; ++ int mirror; ++ int rotation = var->rotate; ++ int i; ++ ++ for (i = 0; i < ofbi->num_overlays; i++) { ++ if (ovl != ofbi->overlays[i]) ++ continue; ++ ++ rotation = (rotation + ofbi->rotation[i]) % 4; ++ break; ++ } ++ ++ DBG("setup_overlay %d, posx %d, posy %d, outw %d, outh %d\n", ofbi->id, ++ posx, posy, outw, outh); ++ ++ if (rotation == FB_ROTATE_CW || rotation == FB_ROTATE_CCW) { ++ xres = var->yres; ++ yres = var->xres; ++ } else { ++ xres = var->xres; ++ yres = var->yres; ++ } ++ ++ offset = ((var->yoffset * var->xres_virtual + ++ var->xoffset) * var->bits_per_pixel) >> 3; ++ ++ if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) { ++ data_start_p = omapfb_get_region_rot_paddr(ofbi, rotation); ++ data_start_v = NULL; ++ } else { ++ data_start_p = omapfb_get_region_paddr(ofbi); ++ data_start_v = omapfb_get_region_vaddr(ofbi); ++ } ++ ++ data_start_p += offset; ++ data_start_v += offset; ++ ++ mode = fb_mode_to_dss_mode(var); ++ ++ if (mode == -EINVAL) { ++ DBG("fb_mode_to_dss_mode failed"); ++ r = -EINVAL; ++ goto err; ++ } ++ ++ switch (var->nonstd) { ++ case OMAPFB_COLOR_YUV422: ++ case OMAPFB_COLOR_YUY422: ++ if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) { ++ screen_width = fix->line_length ++ / (var->bits_per_pixel >> 2); ++ break; ++ } ++ default: ++ screen_width = fix->line_length / (var->bits_per_pixel >> 3); ++ break; ++ } ++ ++ ovl->get_overlay_info(ovl, &info); ++ ++ if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) ++ mirror = 0; ++ else ++ mirror = ofbi->mirror; ++ ++ info.paddr = data_start_p; ++ info.vaddr = data_start_v; ++ info.screen_width = screen_width; ++ info.width = xres; ++ info.height = yres; ++ info.color_mode = mode; ++ info.rotation_type = ofbi->rotation_type; ++ info.rotation = rotation; ++ info.mirror = mirror; ++ ++ info.pos_x = posx; ++ info.pos_y = posy; ++ info.out_width = outw; ++ info.out_height = outh; ++ ++ r = ovl->set_overlay_info(ovl, &info); ++ if (r) { ++ DBG("ovl->setup_overlay_info failed\n"); ++ goto err; ++ } ++ ++ return 0; ++ ++err: ++ DBG("setup_overlay failed\n"); ++ return r; ++} ++ ++/* apply var to the overlay */ ++int omapfb_apply_changes(struct fb_info *fbi, int init) ++{ ++ int r = 0; ++ struct omapfb_info *ofbi = FB2OFB(fbi); ++ struct fb_var_screeninfo *var = &fbi->var; ++ struct omap_overlay *ovl; ++ u16 posx, posy; ++ u16 outw, outh; ++ int i; ++ ++#ifdef DEBUG ++ if (omapfb_test_pattern) ++ fill_fb(fbi); ++#endif ++ ++ for (i = 0; i < ofbi->num_overlays; i++) { ++ ovl = ofbi->overlays[i]; ++ ++ DBG("apply_changes, fb %d, ovl %d\n", ofbi->id, ovl->id); ++ ++ if (ofbi->region.size == 0) { ++ /* the fb is not available. disable the overlay */ ++ omapfb_overlay_enable(ovl, 0); ++ if (!init && ovl->manager) ++ ovl->manager->apply(ovl->manager); ++ continue; ++ } ++ ++ if (init || (ovl->caps & OMAP_DSS_OVL_CAP_SCALE) == 0) { ++ int rotation = (var->rotate + ofbi->rotation[i]) % 4; ++ if (rotation == FB_ROTATE_CW || ++ rotation == FB_ROTATE_CCW) { ++ outw = var->yres; ++ outh = var->xres; ++ } else { ++ outw = var->xres; ++ outh = var->yres; ++ } ++ } else { ++ outw = ovl->info.out_width; ++ outh = ovl->info.out_height; ++ } ++ ++ if (init) { ++ posx = 0; ++ posy = 0; ++ } else { ++ posx = ovl->info.pos_x; ++ posy = ovl->info.pos_y; ++ } ++ ++ r = omapfb_setup_overlay(fbi, ovl, posx, posy, outw, outh); ++ if (r) ++ goto err; ++ ++ if (!init && ovl->manager) ++ ovl->manager->apply(ovl->manager); ++ } ++ return 0; ++err: ++ DBG("apply_changes failed\n"); ++ return r; ++} ++ ++/* checks var and eventually tweaks it to something supported, ++ * DO NOT MODIFY PAR */ ++static int omapfb_check_var(struct fb_var_screeninfo *var, struct fb_info *fbi) ++{ ++ int r; ++ ++ DBG("check_var(%d)\n", FB2OFB(fbi)->id); ++ ++ r = check_fb_var(fbi, var); ++ ++ return r; ++} ++ ++/* set the video mode according to info->var */ ++static int omapfb_set_par(struct fb_info *fbi) ++{ ++ int r; ++ ++ DBG("set_par(%d)\n", FB2OFB(fbi)->id); ++ ++ set_fb_fix(fbi); ++ r = omapfb_apply_changes(fbi, 0); ++ ++ return r; ++} ++ ++static int omapfb_pan_display(struct fb_var_screeninfo *var, ++ struct fb_info *fbi) ++{ ++ struct omapfb_info *ofbi = FB2OFB(fbi); ++ int r = 0; ++ ++ DBG("pan_display(%d)\n", ofbi->id); ++ ++ if (var->xoffset != fbi->var.xoffset || ++ var->yoffset != fbi->var.yoffset) { ++ struct fb_var_screeninfo new_var; ++ ++ new_var = fbi->var; ++ new_var.xoffset = var->xoffset; ++ new_var.yoffset = var->yoffset; ++ ++ r = check_fb_var(fbi, &new_var); ++ ++ if (r == 0) { ++ fbi->var = new_var; ++ set_fb_fix(fbi); ++ r = omapfb_apply_changes(fbi, 0); ++ } ++ } ++ ++ return r; ++} ++ ++static void mmap_user_open(struct vm_area_struct *vma) ++{ ++ struct omapfb_info *ofbi = (struct omapfb_info *)vma->vm_private_data; ++ ++ atomic_inc(&ofbi->map_count); ++} ++ ++static void mmap_user_close(struct vm_area_struct *vma) ++{ ++ struct omapfb_info *ofbi = (struct omapfb_info *)vma->vm_private_data; ++ ++ atomic_dec(&ofbi->map_count); ++} ++ ++static struct vm_operations_struct mmap_user_ops = { ++ .open = mmap_user_open, ++ .close = mmap_user_close, ++}; ++ ++static int omapfb_mmap(struct fb_info *fbi, struct vm_area_struct *vma) ++{ ++ struct omapfb_info *ofbi = FB2OFB(fbi); ++ struct fb_fix_screeninfo *fix = &fbi->fix; ++ unsigned long off; ++ unsigned long start; ++ u32 len; ++ ++ if (vma->vm_end - vma->vm_start == 0) ++ return 0; ++ if (vma->vm_pgoff > (~0UL >> PAGE_SHIFT)) ++ return -EINVAL; ++ off = vma->vm_pgoff << PAGE_SHIFT; ++ ++ start = omapfb_get_region_paddr(ofbi); ++ len = fix->smem_len; ++ if (off >= len) ++ return -EINVAL; ++ if ((vma->vm_end - vma->vm_start + off) > len) ++ return -EINVAL; ++ ++ off += start; ++ ++ DBG("user mmap region start %lx, len %d, off %lx\n", start, len, off); ++ ++ vma->vm_pgoff = off >> PAGE_SHIFT; ++ vma->vm_flags |= VM_IO | VM_RESERVED; ++ vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot); ++ vma->vm_ops = &mmap_user_ops; ++ vma->vm_private_data = ofbi; ++ if (io_remap_pfn_range(vma, vma->vm_start, off >> PAGE_SHIFT, ++ vma->vm_end - vma->vm_start, vma->vm_page_prot)) ++ return -EAGAIN; ++ /* vm_ops.open won't be called for mmap itself. */ ++ atomic_inc(&ofbi->map_count); ++ return 0; ++} ++ ++/* Store a single color palette entry into a pseudo palette or the hardware ++ * palette if one is available. For now we support only 16bpp and thus store ++ * the entry only to the pseudo palette. ++ */ ++static int _setcolreg(struct fb_info *fbi, u_int regno, u_int red, u_int green, ++ u_int blue, u_int transp, int update_hw_pal) ++{ ++ /*struct omapfb_info *ofbi = FB2OFB(fbi);*/ ++ /*struct omapfb2_device *fbdev = ofbi->fbdev;*/ ++ struct fb_var_screeninfo *var = &fbi->var; ++ int r = 0; ++ ++ enum omapfb_color_format mode = OMAPFB_COLOR_RGB24U; /* XXX */ ++ ++ /*switch (plane->color_mode) {*/ ++ switch (mode) { ++ case OMAPFB_COLOR_YUV422: ++ case OMAPFB_COLOR_YUV420: ++ case OMAPFB_COLOR_YUY422: ++ r = -EINVAL; ++ break; ++ case OMAPFB_COLOR_CLUT_8BPP: ++ case OMAPFB_COLOR_CLUT_4BPP: ++ case OMAPFB_COLOR_CLUT_2BPP: ++ case OMAPFB_COLOR_CLUT_1BPP: ++ /* ++ if (fbdev->ctrl->setcolreg) ++ r = fbdev->ctrl->setcolreg(regno, red, green, blue, ++ transp, update_hw_pal); ++ */ ++ /* Fallthrough */ ++ r = -EINVAL; ++ break; ++ case OMAPFB_COLOR_RGB565: ++ case OMAPFB_COLOR_RGB444: ++ case OMAPFB_COLOR_RGB24P: ++ case OMAPFB_COLOR_RGB24U: ++ if (r != 0) ++ break; ++ ++ if (regno < 0) { ++ r = -EINVAL; ++ break; ++ } ++ ++ if (regno < 16) { ++ u16 pal; ++ pal = ((red >> (16 - var->red.length)) << ++ var->red.offset) | ++ ((green >> (16 - var->green.length)) << ++ var->green.offset) | ++ (blue >> (16 - var->blue.length)); ++ ((u32 *)(fbi->pseudo_palette))[regno] = pal; ++ } ++ break; ++ default: ++ BUG(); ++ } ++ return r; ++} ++ ++static int omapfb_setcolreg(u_int regno, u_int red, u_int green, u_int blue, ++ u_int transp, struct fb_info *info) ++{ ++ DBG("setcolreg\n"); ++ ++ return _setcolreg(info, regno, red, green, blue, transp, 1); ++} ++ ++static int omapfb_setcmap(struct fb_cmap *cmap, struct fb_info *info) ++{ ++ int count, index, r; ++ u16 *red, *green, *blue, *transp; ++ u16 trans = 0xffff; ++ ++ DBG("setcmap\n"); ++ ++ red = cmap->red; ++ green = cmap->green; ++ blue = cmap->blue; ++ transp = cmap->transp; ++ index = cmap->start; ++ ++ for (count = 0; count < cmap->len; count++) { ++ if (transp) ++ trans = *transp++; ++ r = _setcolreg(info, index++, *red++, *green++, *blue++, trans, ++ count == cmap->len - 1); ++ if (r != 0) ++ return r; ++ } ++ ++ return 0; ++} ++ ++static void omapfb_vrfb_suspend_all(struct omapfb2_device *fbdev) ++{ ++ int i; ++ ++ for (i = 0; i < fbdev->num_fbs; i++) { ++ struct omapfb_info *ofbi = FB2OFB(fbdev->fbs[i]); ++ ++ if (ofbi->region.vrfb.vaddr[0]) ++ omap_vrfb_suspend_ctx(&ofbi->region.vrfb); ++ } ++} ++ ++static void omapfb_vrfb_resume_all(struct omapfb2_device *fbdev) ++{ ++ int i; ++ ++ for (i = 0; i < fbdev->num_fbs; i++) { ++ struct omapfb_info *ofbi = FB2OFB(fbdev->fbs[i]); ++ ++ if (ofbi->region.vrfb.vaddr[0]) ++ omap_vrfb_resume_ctx(&ofbi->region.vrfb); ++ } ++} ++ ++static int omapfb_blank(int blank, struct fb_info *fbi) ++{ ++ struct omapfb_info *ofbi = FB2OFB(fbi); ++ struct omapfb2_device *fbdev = ofbi->fbdev; ++ struct omap_dss_device *display = fb2display(fbi); ++ int do_update = 0; ++ int r = 0; ++ ++ omapfb_lock(fbdev); ++ ++ switch (blank) { ++ case FB_BLANK_UNBLANK: ++ if (display->state != OMAP_DSS_DISPLAY_SUSPENDED) ++ goto exit; ++ ++ omapfb_vrfb_resume_all(fbdev); ++ ++ if (display->resume) ++ r = display->resume(display); ++ ++ if (r == 0 && display->get_update_mode && ++ display->get_update_mode(display) == ++ OMAP_DSS_UPDATE_MANUAL) ++ do_update = 1; ++ ++ break; ++ ++ case FB_BLANK_NORMAL: ++ /* FB_BLANK_NORMAL could be implemented. ++ * Needs DSS additions. */ ++ case FB_BLANK_VSYNC_SUSPEND: ++ case FB_BLANK_HSYNC_SUSPEND: ++ case FB_BLANK_POWERDOWN: ++ if (display->state != OMAP_DSS_DISPLAY_ACTIVE) ++ goto exit; ++ ++ if (display->suspend) ++ r = display->suspend(display); ++ ++ omapfb_vrfb_suspend_all(fbdev); ++ ++ break; ++ ++ default: ++ r = -EINVAL; ++ } ++ ++exit: ++ omapfb_unlock(fbdev); ++ ++ if (r == 0 && do_update && display->update) { ++ u16 w, h; ++ display->get_resolution(display, &w, &h); ++ ++ r = display->update(display, 0, 0, w, h); ++ } ++ ++ return r; ++} ++ ++#if 0 ++/* XXX fb_read and fb_write are needed for VRFB */ ++ssize_t omapfb_write(struct fb_info *info, const char __user *buf, ++ size_t count, loff_t *ppos) ++{ ++ DBG("omapfb_write %d, %lu\n", count, (unsigned long)*ppos); ++ /* XXX needed for VRFB */ ++ return count; ++} ++#endif ++ ++static struct fb_ops omapfb_ops = { ++ .owner = THIS_MODULE, ++ .fb_open = omapfb_open, ++ .fb_release = omapfb_release, ++ .fb_fillrect = cfb_fillrect, ++ .fb_copyarea = cfb_copyarea, ++ .fb_imageblit = cfb_imageblit, ++ .fb_blank = omapfb_blank, ++ .fb_ioctl = omapfb_ioctl, ++ .fb_check_var = omapfb_check_var, ++ .fb_set_par = omapfb_set_par, ++ .fb_pan_display = omapfb_pan_display, ++ .fb_mmap = omapfb_mmap, ++ .fb_setcolreg = omapfb_setcolreg, ++ .fb_setcmap = omapfb_setcmap, ++ /*.fb_write = omapfb_write,*/ ++}; ++ ++static void omapfb_free_fbmem(struct fb_info *fbi) ++{ ++ struct omapfb_info *ofbi = FB2OFB(fbi); ++ struct omapfb2_device *fbdev = ofbi->fbdev; ++ struct omapfb2_mem_region *rg; ++ ++ rg = &ofbi->region; ++ ++ if (rg->paddr) ++ if (omap_vram_free(rg->paddr, rg->size)) ++ dev_err(fbdev->dev, "VRAM FREE failed\n"); ++ ++ if (rg->vaddr) ++ iounmap(rg->vaddr); ++ ++ if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) { ++ /* unmap the 0 angle rotation */ ++ if (rg->vrfb.vaddr[0]) { ++ iounmap(rg->vrfb.vaddr[0]); ++ omap_vrfb_release_ctx(&rg->vrfb); ++ } ++ } ++ ++ rg->vaddr = NULL; ++ rg->paddr = 0; ++ rg->alloc = 0; ++ rg->size = 0; ++} ++ ++static void clear_fb_info(struct fb_info *fbi) ++{ ++ memset(&fbi->var, 0, sizeof(fbi->var)); ++ memset(&fbi->fix, 0, sizeof(fbi->fix)); ++ strlcpy(fbi->fix.id, MODULE_NAME, sizeof(fbi->fix.id)); ++} ++ ++static int omapfb_free_all_fbmem(struct omapfb2_device *fbdev) ++{ ++ int i; ++ ++ DBG("free all fbmem\n"); ++ ++ for (i = 0; i < fbdev->num_fbs; i++) { ++ struct fb_info *fbi = fbdev->fbs[i]; ++ omapfb_free_fbmem(fbi); ++ clear_fb_info(fbi); ++ } ++ ++ return 0; ++} ++ ++static int omapfb_alloc_fbmem(struct fb_info *fbi, unsigned long size, ++ unsigned long paddr) ++{ ++ struct omapfb_info *ofbi = FB2OFB(fbi); ++ struct omapfb2_device *fbdev = ofbi->fbdev; ++ struct omapfb2_mem_region *rg; ++ void __iomem *vaddr; ++ int r; ++ ++ rg = &ofbi->region; ++ memset(rg, 0, sizeof(*rg)); ++ ++ size = PAGE_ALIGN(size); ++ ++ if (!paddr) { ++ DBG("allocating %lu bytes for fb %d\n", size, ofbi->id); ++ r = omap_vram_alloc(OMAP_VRAM_MEMTYPE_SDRAM, size, &paddr); ++ } else { ++ DBG("reserving %lu bytes at %lx for fb %d\n", size, paddr, ++ ofbi->id); ++ r = omap_vram_reserve(paddr, size); ++ } ++ ++ if (r) { ++ dev_err(fbdev->dev, "failed to allocate framebuffer\n"); ++ return -ENOMEM; ++ } ++ ++ if (ofbi->rotation_type != OMAP_DSS_ROT_VRFB) { ++ vaddr = ioremap_wc(paddr, size); ++ ++ if (!vaddr) { ++ dev_err(fbdev->dev, "failed to ioremap framebuffer\n"); ++ omap_vram_free(paddr, size); ++ return -ENOMEM; ++ } ++ ++ DBG("allocated VRAM paddr %lx, vaddr %p\n", paddr, vaddr); ++ } else { ++ void __iomem *va; ++ ++ r = omap_vrfb_request_ctx(&rg->vrfb); ++ if (r) { ++ dev_err(fbdev->dev, "vrfb create ctx failed\n"); ++ return r; ++ } ++ ++ /* only ioremap the 0 angle view */ ++ va = ioremap_wc(rg->vrfb.paddr[0], size); ++ ++ if (!va) { ++ printk(KERN_ERR "vrfb: ioremap failed\n"); ++ omap_vrfb_release_ctx(&rg->vrfb); ++ return -ENOMEM; ++ } ++ ++ DBG("ioremapped vrfb area 0 to %p\n", va); ++ ++ rg->vrfb.vaddr[0] = va; ++ ++ vaddr = NULL; ++ } ++ ++ rg->paddr = paddr; ++ rg->vaddr = vaddr; ++ rg->size = size; ++ rg->alloc = 1; ++ ++ return 0; ++} ++ ++/* allocate fbmem using display resolution as reference */ ++static int omapfb_alloc_fbmem_display(struct fb_info *fbi, unsigned long size, ++ unsigned long paddr) ++{ ++ struct omapfb_info *ofbi = FB2OFB(fbi); ++ struct omap_dss_device *display; ++ int bytespp; ++ ++ display = fb2display(fbi); ++ ++ if (!display) ++ return 0; ++ ++ switch (display->get_recommended_bpp(display)) { ++ case 16: ++ bytespp = 2; ++ break; ++ case 24: ++ bytespp = 4; ++ break; ++ default: ++ bytespp = 4; ++ break; ++ } ++ ++ if (!size) { ++ u16 w, h; ++ ++ display->get_resolution(display, &w, &h); ++ ++ if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) { ++#ifdef DEBUG ++ int oldw = w, oldh = h; ++#endif ++ ++ omap_vrfb_adjust_size(&w, &h, bytespp); ++ ++ /* Because we change the resolution of the 0 degree ++ * view, we need to alloc max(w, h) for height */ ++ h = max(w, h); ++ w = OMAP_VRFB_LINE_LEN; ++ ++ DBG("adjusting fb mem size for VRFB, %dx%d -> %dx%d\n", ++ oldw, oldh, w, h); ++ } ++ ++ size = w * h * bytespp; ++ } ++ ++ if (!size) ++ return 0; ++ ++ return omapfb_alloc_fbmem(fbi, size, paddr); ++} ++ ++static enum omap_color_mode fb_format_to_dss_mode(enum omapfb_color_format fmt) ++{ ++ enum omap_color_mode mode; ++ ++ switch (fmt) { ++ case OMAPFB_COLOR_RGB565: ++ mode = OMAP_DSS_COLOR_RGB16; ++ break; ++ case OMAPFB_COLOR_YUV422: ++ mode = OMAP_DSS_COLOR_YUV2; ++ break; ++ case OMAPFB_COLOR_CLUT_8BPP: ++ mode = OMAP_DSS_COLOR_CLUT8; ++ break; ++ case OMAPFB_COLOR_CLUT_4BPP: ++ mode = OMAP_DSS_COLOR_CLUT4; ++ break; ++ case OMAPFB_COLOR_CLUT_2BPP: ++ mode = OMAP_DSS_COLOR_CLUT2; ++ break; ++ case OMAPFB_COLOR_CLUT_1BPP: ++ mode = OMAP_DSS_COLOR_CLUT1; ++ break; ++ case OMAPFB_COLOR_RGB444: ++ mode = OMAP_DSS_COLOR_RGB12U; ++ break; ++ case OMAPFB_COLOR_YUY422: ++ mode = OMAP_DSS_COLOR_UYVY; ++ break; ++ case OMAPFB_COLOR_ARGB16: ++ mode = OMAP_DSS_COLOR_ARGB16; ++ break; ++ case OMAPFB_COLOR_RGB24U: ++ mode = OMAP_DSS_COLOR_RGB24U; ++ break; ++ case OMAPFB_COLOR_RGB24P: ++ mode = OMAP_DSS_COLOR_RGB24P; ++ break; ++ case OMAPFB_COLOR_ARGB32: ++ mode = OMAP_DSS_COLOR_ARGB32; ++ break; ++ case OMAPFB_COLOR_RGBA32: ++ mode = OMAP_DSS_COLOR_RGBA32; ++ break; ++ case OMAPFB_COLOR_RGBX32: ++ mode = OMAP_DSS_COLOR_RGBX32; ++ break; ++ default: ++ mode = -EINVAL; ++ } ++ ++ return mode; ++} ++ ++static int omapfb_parse_vram_param(const char *param, int max_entries, ++ unsigned long *sizes, unsigned long *paddrs) ++{ ++ int fbnum; ++ unsigned long size; ++ unsigned long paddr = 0; ++ char *p, *start; ++ ++ start = (char *)param; ++ ++ while (1) { ++ p = start; ++ ++ fbnum = simple_strtoul(p, &p, 10); ++ ++ if (p == param) ++ return -EINVAL; ++ ++ if (*p != ':') ++ return -EINVAL; ++ ++ if (fbnum >= max_entries) ++ return -EINVAL; ++ ++ size = memparse(p + 1, &p); ++ ++ if (!size) ++ return -EINVAL; ++ ++ paddr = 0; ++ ++ if (*p == '@') { ++ paddr = simple_strtoul(p + 1, &p, 16); ++ ++ if (!paddr) ++ return -EINVAL; ++ ++ } ++ ++ paddrs[fbnum] = paddr; ++ sizes[fbnum] = size; ++ ++ if (*p == 0) ++ break; ++ ++ if (*p != ',') ++ return -EINVAL; ++ ++ ++p; ++ ++ start = p; ++ } ++ ++ return 0; ++} ++ ++static int omapfb_allocate_all_fbs(struct omapfb2_device *fbdev) ++{ ++ int i, r; ++ unsigned long vram_sizes[10]; ++ unsigned long vram_paddrs[10]; ++ ++ memset(&vram_sizes, 0, sizeof(vram_sizes)); ++ memset(&vram_paddrs, 0, sizeof(vram_paddrs)); ++ ++ if (def_vram && omapfb_parse_vram_param(def_vram, 10, ++ vram_sizes, vram_paddrs)) { ++ dev_err(fbdev->dev, "failed to parse vram parameter\n"); ++ ++ memset(&vram_sizes, 0, sizeof(vram_sizes)); ++ memset(&vram_paddrs, 0, sizeof(vram_paddrs)); ++ } ++ ++ if (fbdev->dev->platform_data) { ++ struct omapfb_platform_data *opd; ++ opd = fbdev->dev->platform_data; ++ for (i = 0; i < opd->mem_desc.region_cnt; ++i) { ++ if (!vram_sizes[i]) { ++ unsigned long size; ++ unsigned long paddr; ++ ++ size = opd->mem_desc.region[i].size; ++ paddr = opd->mem_desc.region[i].paddr; ++ ++ vram_sizes[i] = size; ++ vram_paddrs[i] = paddr; ++ } ++ } ++ } ++ ++ for (i = 0; i < fbdev->num_fbs; i++) { ++ /* allocate memory automatically only for fb0, or if ++ * excplicitly defined with vram or plat data option */ ++ if (i == 0 || vram_sizes[i] != 0) { ++ r = omapfb_alloc_fbmem_display(fbdev->fbs[i], ++ vram_sizes[i], vram_paddrs[i]); ++ ++ if (r) ++ return r; ++ } ++ } ++ ++ for (i = 0; i < fbdev->num_fbs; i++) { ++ struct omapfb_info *ofbi = FB2OFB(fbdev->fbs[i]); ++ struct omapfb2_mem_region *rg; ++ rg = &ofbi->region; ++ ++ DBG("region%d phys %08x virt %p size=%lu\n", ++ i, ++ rg->paddr, ++ rg->vaddr, ++ rg->size); ++ } ++ ++ return 0; ++} ++ ++int omapfb_realloc_fbmem(struct fb_info *fbi, unsigned long size, int type) ++{ ++ struct omapfb_info *ofbi = FB2OFB(fbi); ++ struct omapfb2_device *fbdev = ofbi->fbdev; ++ struct omap_dss_device *display = fb2display(fbi); ++ struct omapfb2_mem_region *rg = &ofbi->region; ++ unsigned long old_size = rg->size; ++ unsigned long old_paddr = rg->paddr; ++ int old_type = rg->type; ++ int r; ++ ++ if (type > OMAPFB_MEMTYPE_MAX) ++ return -EINVAL; ++ ++ size = PAGE_ALIGN(size); ++ ++ if (old_size == size && old_type == type) ++ return 0; ++ ++ if (display && display->sync) ++ display->sync(display); ++ ++ omapfb_free_fbmem(fbi); ++ ++ if (size == 0) { ++ clear_fb_info(fbi); ++ return 0; ++ } ++ ++ r = omapfb_alloc_fbmem(fbi, size, 0); ++ ++ if (r) { ++ if (old_size) ++ omapfb_alloc_fbmem(fbi, old_size, old_paddr); ++ ++ if (rg->size == 0) ++ clear_fb_info(fbi); ++ ++ return r; ++ } ++ ++ if (old_size == size) ++ return 0; ++ ++ if (old_size == 0) { ++ DBG("initializing fb %d\n", ofbi->id); ++ r = omapfb_fb_init(fbdev, fbi); ++ if (r) { ++ DBG("omapfb_fb_init failed\n"); ++ goto err; ++ } ++ r = omapfb_apply_changes(fbi, 1); ++ if (r) { ++ DBG("omapfb_apply_changes failed\n"); ++ goto err; ++ } ++ } else { ++ struct fb_var_screeninfo new_var; ++ memcpy(&new_var, &fbi->var, sizeof(new_var)); ++ r = check_fb_var(fbi, &new_var); ++ if (r) ++ goto err; ++ memcpy(&fbi->var, &new_var, sizeof(fbi->var)); ++ set_fb_fix(fbi); ++ } ++ ++ return 0; ++err: ++ omapfb_free_fbmem(fbi); ++ clear_fb_info(fbi); ++ return r; ++} ++ ++/* initialize fb_info, var, fix to something sane based on the display */ ++static int omapfb_fb_init(struct omapfb2_device *fbdev, struct fb_info *fbi) ++{ ++ struct fb_var_screeninfo *var = &fbi->var; ++ struct omap_dss_device *display = fb2display(fbi); ++ struct omapfb_info *ofbi = FB2OFB(fbi); ++ int r = 0; ++ ++ fbi->fbops = &omapfb_ops; ++ fbi->flags = FBINFO_FLAG_DEFAULT; ++ fbi->pseudo_palette = fbdev->pseudo_palette; ++ ++ if (ofbi->region.size == 0) { ++ clear_fb_info(fbi); ++ return 0; ++ } ++ ++ var->nonstd = 0; ++ var->bits_per_pixel = 0; ++ ++ var->rotate = def_rotate; ++ ++ /* ++ * Check if there is a default color format set in the board file, ++ * and use this format instead the default deducted from the ++ * display bpp. ++ */ ++ if (fbdev->dev->platform_data) { ++ struct omapfb_platform_data *opd; ++ int id = ofbi->id; ++ ++ opd = fbdev->dev->platform_data; ++ if (opd->mem_desc.region[id].format_used) { ++ enum omap_color_mode mode; ++ enum omapfb_color_format format; ++ ++ format = opd->mem_desc.region[id].format; ++ mode = fb_format_to_dss_mode(format); ++ if (mode < 0) { ++ r = mode; ++ goto err; ++ } ++ r = dss_mode_to_fb_mode(mode, var); ++ if (r < 0) ++ goto err; ++ } ++ } ++ ++ if (display) { ++ u16 w, h; ++ int rotation = (var->rotate + ofbi->rotation[0]) % 4; ++ ++ display->get_resolution(display, &w, &h); ++ ++ if (rotation == FB_ROTATE_CW || ++ rotation == FB_ROTATE_CCW) { ++ var->xres = h; ++ var->yres = w; ++ } else { ++ var->xres = w; ++ var->yres = h; ++ } ++ ++ var->xres_virtual = var->xres; ++ var->yres_virtual = var->yres; ++ ++ if (!var->bits_per_pixel) { ++ switch (display->get_recommended_bpp(display)) { ++ case 16: ++ var->bits_per_pixel = 16; ++ break; ++ case 24: ++ var->bits_per_pixel = 32; ++ break; ++ default: ++ dev_err(fbdev->dev, "illegal display " ++ "bpp\n"); ++ return -EINVAL; ++ } ++ } ++ } else { ++ /* if there's no display, let's just guess some basic values */ ++ var->xres = 320; ++ var->yres = 240; ++ var->xres_virtual = var->xres; ++ var->yres_virtual = var->yres; ++ if (!var->bits_per_pixel) ++ var->bits_per_pixel = 16; ++ } ++ ++ r = check_fb_var(fbi, var); ++ if (r) ++ goto err; ++ ++ set_fb_fix(fbi); ++ ++ r = fb_alloc_cmap(&fbi->cmap, 256, 0); ++ if (r) ++ dev_err(fbdev->dev, "unable to allocate color map memory\n"); ++ ++err: ++ return r; ++} ++ ++static void fbinfo_cleanup(struct omapfb2_device *fbdev, struct fb_info *fbi) ++{ ++ fb_dealloc_cmap(&fbi->cmap); ++} ++ ++ ++static void omapfb_free_resources(struct omapfb2_device *fbdev) ++{ ++ int i; ++ ++ DBG("free_resources\n"); ++ ++ if (fbdev == NULL) ++ return; ++ ++ for (i = 0; i < fbdev->num_fbs; i++) ++ unregister_framebuffer(fbdev->fbs[i]); ++ ++ /* free the reserved fbmem */ ++ omapfb_free_all_fbmem(fbdev); ++ ++ for (i = 0; i < fbdev->num_fbs; i++) { ++ fbinfo_cleanup(fbdev, fbdev->fbs[i]); ++ framebuffer_release(fbdev->fbs[i]); ++ } ++ ++ for (i = 0; i < fbdev->num_displays; i++) { ++ if (fbdev->displays[i]->state != OMAP_DSS_DISPLAY_DISABLED) ++ fbdev->displays[i]->disable(fbdev->displays[i]); ++ ++ omap_dss_put_device(fbdev->displays[i]); ++ } ++ ++ dev_set_drvdata(fbdev->dev, NULL); ++ kfree(fbdev); ++} ++ ++static int omapfb_create_framebuffers(struct omapfb2_device *fbdev) ++{ ++ int r, i; ++ ++ fbdev->num_fbs = 0; ++ ++ DBG("create %d framebuffers\n", CONFIG_FB_OMAP2_NUM_FBS); ++ ++ /* allocate fb_infos */ ++ for (i = 0; i < CONFIG_FB_OMAP2_NUM_FBS; i++) { ++ struct fb_info *fbi; ++ struct omapfb_info *ofbi; ++ ++ fbi = framebuffer_alloc(sizeof(struct omapfb_info), ++ fbdev->dev); ++ ++ if (fbi == NULL) { ++ dev_err(fbdev->dev, ++ "unable to allocate memory for plane info\n"); ++ return -ENOMEM; ++ } ++ ++ clear_fb_info(fbi); ++ ++ fbdev->fbs[i] = fbi; ++ ++ ofbi = FB2OFB(fbi); ++ ofbi->fbdev = fbdev; ++ ofbi->id = i; ++ ++ /* assign these early, so that fb alloc can use them */ ++ ofbi->rotation_type = def_vrfb ? OMAP_DSS_ROT_VRFB : ++ OMAP_DSS_ROT_DMA; ++ ofbi->mirror = def_mirror; ++ ++ fbdev->num_fbs++; ++ } ++ ++ DBG("fb_infos allocated\n"); ++ ++ /* assign overlays for the fbs */ ++ for (i = 0; i < min(fbdev->num_fbs, fbdev->num_overlays); i++) { ++ struct omapfb_info *ofbi = FB2OFB(fbdev->fbs[i]); ++ ++ ofbi->overlays[0] = fbdev->overlays[i]; ++ ofbi->num_overlays = 1; ++ } ++ ++ /* allocate fb memories */ ++ r = omapfb_allocate_all_fbs(fbdev); ++ if (r) { ++ dev_err(fbdev->dev, "failed to allocate fbmem\n"); ++ return r; ++ } ++ ++ DBG("fbmems allocated\n"); ++ ++ /* setup fb_infos */ ++ for (i = 0; i < fbdev->num_fbs; i++) { ++ r = omapfb_fb_init(fbdev, fbdev->fbs[i]); ++ if (r) { ++ dev_err(fbdev->dev, "failed to setup fb_info\n"); ++ return r; ++ } ++ } ++ ++ DBG("fb_infos initialized\n"); ++ ++ for (i = 0; i < fbdev->num_fbs; i++) { ++ r = register_framebuffer(fbdev->fbs[i]); ++ if (r != 0) { ++ dev_err(fbdev->dev, ++ "registering framebuffer %d failed\n", i); ++ return r; ++ } ++ } ++ ++ DBG("framebuffers registered\n"); ++ ++ for (i = 0; i < fbdev->num_fbs; i++) { ++ r = omapfb_apply_changes(fbdev->fbs[i], 1); ++ if (r) { ++ dev_err(fbdev->dev, "failed to change mode\n"); ++ return r; ++ } ++ } ++ ++ DBG("create sysfs for fbs\n"); ++ r = omapfb_create_sysfs(fbdev); ++ if (r) { ++ dev_err(fbdev->dev, "failed to create sysfs entries\n"); ++ return r; ++ } ++ ++ /* Enable fb0 */ ++ if (fbdev->num_fbs > 0) { ++ struct omapfb_info *ofbi = FB2OFB(fbdev->fbs[0]); ++ ++ if (ofbi->num_overlays > 0) { ++ struct omap_overlay *ovl = ofbi->overlays[0]; ++ ++ r = omapfb_overlay_enable(ovl, 1); ++ ++ if (r) { ++ dev_err(fbdev->dev, ++ "failed to enable overlay\n"); ++ return r; ++ } ++ } ++ } ++ ++ DBG("create_framebuffers done\n"); ++ ++ return 0; ++} ++ ++static int omapfb_mode_to_timings(const char *mode_str, ++ struct omap_video_timings *timings, u8 *bpp) ++{ ++ struct fb_info fbi; ++ struct fb_var_screeninfo var; ++ struct fb_ops fbops; ++ int r; ++ ++#ifdef CONFIG_OMAP2_DSS_VENC ++ if (strcmp(mode_str, "pal") == 0) { ++ *timings = omap_dss_pal_timings; ++ *bpp = 0; ++ return 0; ++ } else if (strcmp(mode_str, "ntsc") == 0) { ++ *timings = omap_dss_ntsc_timings; ++ *bpp = 0; ++ return 0; ++ } ++#endif ++ ++ /* this is quite a hack, but I wanted to use the modedb and for ++ * that we need fb_info and var, so we create dummy ones */ ++ ++ memset(&fbi, 0, sizeof(fbi)); ++ memset(&var, 0, sizeof(var)); ++ memset(&fbops, 0, sizeof(fbops)); ++ fbi.fbops = &fbops; ++ ++ r = fb_find_mode(&var, &fbi, mode_str, NULL, 0, NULL, 24); ++ ++ if (r != 0) { ++ timings->pixel_clock = PICOS2KHZ(var.pixclock); ++ timings->hfp = var.left_margin; ++ timings->hbp = var.right_margin; ++ timings->vfp = var.upper_margin; ++ timings->vbp = var.lower_margin; ++ timings->hsw = var.hsync_len; ++ timings->vsw = var.vsync_len; ++ timings->x_res = var.xres; ++ timings->y_res = var.yres; ++ ++ switch (var.bits_per_pixel) { ++ case 16: ++ *bpp = 16; ++ break; ++ case 24: ++ case 32: ++ default: ++ *bpp = 24; ++ break; ++ } ++ ++ return 0; ++ } else { ++ return -EINVAL; ++ } ++} ++ ++static int omapfb_set_def_mode(struct omap_dss_device *display, char *mode_str) ++{ ++ int r; ++ u8 bpp; ++ struct omap_video_timings timings; ++ ++ r = omapfb_mode_to_timings(mode_str, &timings, &bpp); ++ if (r) ++ return r; ++ ++ display->panel.recommended_bpp = bpp; ++ ++ if (!display->check_timings || !display->set_timings) ++ return -EINVAL; ++ ++ r = display->check_timings(display, &timings); ++ if (r) ++ return r; ++ ++ display->set_timings(display, &timings); ++ ++ return 0; ++} ++ ++static int omapfb_parse_def_modes(struct omapfb2_device *fbdev) ++{ ++ char *str, *options, *this_opt; ++ int r = 0; ++ ++ str = kmalloc(strlen(def_mode) + 1, GFP_KERNEL); ++ strcpy(str, def_mode); ++ options = str; ++ ++ while (!r && (this_opt = strsep(&options, ",")) != NULL) { ++ char *p, *display_str, *mode_str; ++ struct omap_dss_device *display; ++ int i; ++ ++ p = strchr(this_opt, ':'); ++ if (!p) { ++ r = -EINVAL; ++ break; ++ } ++ ++ *p = 0; ++ display_str = this_opt; ++ mode_str = p + 1; ++ ++ display = NULL; ++ for (i = 0; i < fbdev->num_displays; ++i) { ++ if (strcmp(fbdev->displays[i]->name, ++ display_str) == 0) { ++ display = fbdev->displays[i]; ++ break; ++ } ++ } ++ ++ if (!display) { ++ r = -EINVAL; ++ break; ++ } ++ ++ r = omapfb_set_def_mode(display, mode_str); ++ if (r) ++ break; ++ } ++ ++ kfree(str); ++ ++ return r; ++} ++ ++static int omapfb_probe(struct platform_device *pdev) ++{ ++ struct omapfb2_device *fbdev = NULL; ++ int r = 0; ++ int i; ++ struct omap_overlay *ovl; ++ struct omap_dss_device *def_display; ++ struct omap_dss_device *dssdev; ++ ++ DBG("omapfb_probe\n"); ++ ++ if (pdev->num_resources != 0) { ++ dev_err(&pdev->dev, "probed for an unknown device\n"); ++ r = -ENODEV; ++ goto err0; ++ } ++ ++ fbdev = kzalloc(sizeof(struct omapfb2_device), GFP_KERNEL); ++ if (fbdev == NULL) { ++ r = -ENOMEM; ++ goto err0; ++ } ++ ++ mutex_init(&fbdev->mtx); ++ ++ fbdev->dev = &pdev->dev; ++ platform_set_drvdata(pdev, fbdev); ++ ++ fbdev->num_displays = 0; ++ dssdev = NULL; ++ for_each_dss_dev(dssdev) { ++ omap_dss_get_device(dssdev); ++ fbdev->displays[fbdev->num_displays++] = dssdev; ++ } ++ ++ if (fbdev->num_displays == 0) { ++ dev_err(&pdev->dev, "no displays\n"); ++ r = -EINVAL; ++ goto cleanup; ++ } ++ ++ fbdev->num_overlays = omap_dss_get_num_overlays(); ++ for (i = 0; i < fbdev->num_overlays; i++) ++ fbdev->overlays[i] = omap_dss_get_overlay(i); ++ ++ fbdev->num_managers = omap_dss_get_num_overlay_managers(); ++ for (i = 0; i < fbdev->num_managers; i++) ++ fbdev->managers[i] = omap_dss_get_overlay_manager(i); ++ ++ if (def_mode && strlen(def_mode) > 0) { ++ if (omapfb_parse_def_modes(fbdev)) ++ dev_warn(&pdev->dev, "cannot parse default modes\n"); ++ } ++ ++ r = omapfb_create_framebuffers(fbdev); ++ if (r) ++ goto cleanup; ++ ++ for (i = 0; i < fbdev->num_managers; i++) { ++ struct omap_overlay_manager *mgr; ++ mgr = fbdev->managers[i]; ++ r = mgr->apply(mgr); ++ if (r) ++ dev_warn(fbdev->dev, "failed to apply dispc config\n"); ++ } ++ ++ DBG("mgr->apply'ed\n"); ++ ++ /* gfx overlay should be the default one. find a display ++ * connected to that, and use it as default display */ ++ ovl = omap_dss_get_overlay(0); ++ if (ovl->manager && ovl->manager->device) { ++ def_display = ovl->manager->device; ++ } else { ++ dev_warn(&pdev->dev, "cannot find default display\n"); ++ def_display = NULL; ++ } ++ ++ if (def_display) { ++ u16 w, h; ++ r = def_display->enable(def_display); ++ if (r) ++ dev_warn(fbdev->dev, "Failed to enable display '%s'\n", ++ def_display->name); ++ ++ /* set the update mode */ ++ if (def_display->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE) { ++#ifdef CONFIG_FB_OMAP2_FORCE_AUTO_UPDATE ++ if (def_display->enable_te) ++ def_display->enable_te(def_display, 1); ++ if (def_display->set_update_mode) ++ def_display->set_update_mode(def_display, ++ OMAP_DSS_UPDATE_AUTO); ++#else /* MANUAL_UPDATE */ ++ if (def_display->enable_te) ++ def_display->enable_te(def_display, 0); ++ if (def_display->set_update_mode) ++ def_display->set_update_mode(def_display, ++ OMAP_DSS_UPDATE_MANUAL); ++ ++ def_display->get_resolution(def_display, &w, &h); ++ def_display->update(def_display, 0, 0, w, h); ++#endif ++ } else { ++ if (def_display->set_update_mode) ++ def_display->set_update_mode(def_display, ++ OMAP_DSS_UPDATE_AUTO); ++ } ++ } ++ ++ return 0; ++ ++cleanup: ++ omapfb_free_resources(fbdev); ++err0: ++ dev_err(&pdev->dev, "failed to setup omapfb\n"); ++ return r; ++} ++ ++static int omapfb_remove(struct platform_device *pdev) ++{ ++ struct omapfb2_device *fbdev = platform_get_drvdata(pdev); ++ ++ /* FIXME: wait till completion of pending events */ ++ ++ omapfb_remove_sysfs(fbdev); ++ ++ omapfb_free_resources(fbdev); ++ ++ return 0; ++} ++ ++static struct platform_driver omapfb_driver = { ++ .probe = omapfb_probe, ++ .remove = omapfb_remove, ++ .driver = { ++ .name = "omapfb", ++ .owner = THIS_MODULE, ++ }, ++}; ++ ++static int __init omapfb_init(void) ++{ ++ DBG("omapfb_init\n"); ++ ++ if (platform_driver_register(&omapfb_driver)) { ++ printk(KERN_ERR "failed to register omapfb driver\n"); ++ return -ENODEV; ++ } ++ ++ return 0; ++} ++ ++static void __exit omapfb_exit(void) ++{ ++ DBG("omapfb_exit\n"); ++ platform_driver_unregister(&omapfb_driver); ++} ++ ++module_param_named(mode, def_mode, charp, 0); ++module_param_named(vram, def_vram, charp, 0); ++module_param_named(rotate, def_rotate, int, 0); ++module_param_named(vrfb, def_vrfb, bool, 0); ++module_param_named(mirror, def_mirror, bool, 0); ++ ++/* late_initcall to let panel/ctrl drivers loaded first. ++ * I guess better option would be a more dynamic approach, ++ * so that omapfb reacts to new panels when they are loaded */ ++late_initcall(omapfb_init); ++/*module_init(omapfb_init);*/ ++module_exit(omapfb_exit); ++ ++MODULE_AUTHOR("Tomi Valkeinen <tomi.valkeinen@nokia.com>"); ++MODULE_DESCRIPTION("OMAP2/3 Framebuffer"); ++MODULE_LICENSE("GPL v2"); +diff --git a/drivers/video/omap2/omapfb/omapfb-sysfs.c b/drivers/video/omap2/omapfb/omapfb-sysfs.c +new file mode 100644 +index 0000000..ef30e0e +--- /dev/null ++++ b/drivers/video/omap2/omapfb/omapfb-sysfs.c +@@ -0,0 +1,507 @@ ++/* ++ * linux/drivers/video/omap2/omapfb-sysfs.c ++ * ++ * Copyright (C) 2008 Nokia Corporation ++ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com> ++ * ++ * Some code and ideas taken from drivers/video/omap/ driver ++ * by Imre Deak. ++ * ++ * This program is free software; you can redistribute it and/or modify it ++ * under the terms of the GNU General Public License version 2 as published by ++ * the Free Software Foundation. ++ * ++ * This program is distributed in the hope that it will be useful, but WITHOUT ++ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or ++ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for ++ * more details. ++ * ++ * You should have received a copy of the GNU General Public License along with ++ * this program. If not, see <http://www.gnu.org/licenses/>. ++ */ ++ ++#include <linux/fb.h> ++#include <linux/sysfs.h> ++#include <linux/device.h> ++#include <linux/uaccess.h> ++#include <linux/platform_device.h> ++#include <linux/kernel.h> ++#include <linux/mm.h> ++#include <linux/omapfb.h> ++ ++#include <mach/display.h> ++#include <mach/vrfb.h> ++ ++#include "omapfb.h" ++ ++static ssize_t show_rotate_type(struct device *dev, ++ struct device_attribute *attr, char *buf) ++{ ++ struct fb_info *fbi = dev_get_drvdata(dev); ++ struct omapfb_info *ofbi = FB2OFB(fbi); ++ ++ return snprintf(buf, PAGE_SIZE, "%d\n", ofbi->rotation_type); ++} ++ ++static ssize_t store_rotate_type(struct device *dev, ++ struct device_attribute *attr, ++ const char *buf, size_t count) ++{ ++ struct fb_info *fbi = dev_get_drvdata(dev); ++ struct omapfb_info *ofbi = FB2OFB(fbi); ++ enum omap_dss_rotation_type rot_type; ++ int r; ++ ++ rot_type = simple_strtoul(buf, NULL, 0); ++ ++ if (rot_type != OMAP_DSS_ROT_DMA && rot_type != OMAP_DSS_ROT_VRFB) ++ return -EINVAL; ++ ++ lock_fb_info(fbi); ++ ++ r = 0; ++ if (rot_type == ofbi->rotation_type) ++ goto out; ++ ++ if (ofbi->region.size) { ++ r = -EBUSY; ++ goto out; ++ } ++ ++ ofbi->rotation_type = rot_type; ++ ++ /* ++ * Since the VRAM for this FB is not allocated at the moment we don't ++ * need to do any further parameter checking at this point. ++ */ ++out: ++ unlock_fb_info(fbi); ++ ++ return r ? r : count; ++} ++ ++ ++static ssize_t show_mirror(struct device *dev, ++ struct device_attribute *attr, char *buf) ++{ ++ struct fb_info *fbi = dev_get_drvdata(dev); ++ struct omapfb_info *ofbi = FB2OFB(fbi); ++ ++ return snprintf(buf, PAGE_SIZE, "%d\n", ofbi->mirror); ++} ++ ++static ssize_t store_mirror(struct device *dev, ++ struct device_attribute *attr, ++ const char *buf, size_t count) ++{ ++ struct fb_info *fbi = dev_get_drvdata(dev); ++ struct omapfb_info *ofbi = FB2OFB(fbi); ++ bool mirror; ++ int r; ++ struct fb_var_screeninfo new_var; ++ ++ mirror = simple_strtoul(buf, NULL, 0); ++ ++ if (mirror != 0 && mirror != 1) ++ return -EINVAL; ++ ++ lock_fb_info(fbi); ++ ++ ofbi->mirror = mirror; ++ ++ memcpy(&new_var, &fbi->var, sizeof(new_var)); ++ r = check_fb_var(fbi, &new_var); ++ if (r) ++ goto out; ++ memcpy(&fbi->var, &new_var, sizeof(fbi->var)); ++ ++ set_fb_fix(fbi); ++ ++ r = omapfb_apply_changes(fbi, 0); ++ if (r) ++ goto out; ++ ++ r = count; ++out: ++ unlock_fb_info(fbi); ++ ++ return r; ++} ++ ++static ssize_t show_overlays(struct device *dev, ++ struct device_attribute *attr, char *buf) ++{ ++ struct fb_info *fbi = dev_get_drvdata(dev); ++ struct omapfb_info *ofbi = FB2OFB(fbi); ++ struct omapfb2_device *fbdev = ofbi->fbdev; ++ ssize_t l = 0; ++ int t; ++ ++ omapfb_lock(fbdev); ++ lock_fb_info(fbi); ++ ++ for (t = 0; t < ofbi->num_overlays; t++) { ++ struct omap_overlay *ovl = ofbi->overlays[t]; ++ int ovlnum; ++ ++ for (ovlnum = 0; ovlnum < fbdev->num_overlays; ++ovlnum) ++ if (ovl == fbdev->overlays[ovlnum]) ++ break; ++ ++ l += snprintf(buf + l, PAGE_SIZE - l, "%s%d", ++ t == 0 ? "" : ",", ovlnum); ++ } ++ ++ l += snprintf(buf + l, PAGE_SIZE - l, "\n"); ++ ++ unlock_fb_info(fbi); ++ omapfb_unlock(fbdev); ++ ++ return l; ++} ++ ++static struct omapfb_info *get_overlay_fb(struct omapfb2_device *fbdev, ++ struct omap_overlay *ovl) ++{ ++ int i, t; ++ ++ for (i = 0; i < fbdev->num_fbs; i++) { ++ struct omapfb_info *ofbi = FB2OFB(fbdev->fbs[i]); ++ ++ for (t = 0; t < ofbi->num_overlays; t++) { ++ if (ofbi->overlays[t] == ovl) ++ return ofbi; ++ } ++ } ++ ++ return NULL; ++} ++ ++static ssize_t store_overlays(struct device *dev, struct device_attribute *attr, ++ const char *buf, size_t count) ++{ ++ struct fb_info *fbi = dev_get_drvdata(dev); ++ struct omapfb_info *ofbi = FB2OFB(fbi); ++ struct omapfb2_device *fbdev = ofbi->fbdev; ++ struct omap_overlay *ovls[OMAPFB_MAX_OVL_PER_FB]; ++ struct omap_overlay *ovl; ++ int num_ovls, r, i; ++ int len; ++ bool added = false; ++ ++ num_ovls = 0; ++ ++ len = strlen(buf); ++ if (buf[len - 1] == '\n') ++ len = len - 1; ++ ++ omapfb_lock(fbdev); ++ lock_fb_info(fbi); ++ ++ if (len > 0) { ++ char *p = (char *)buf; ++ int ovlnum; ++ ++ while (p < buf + len) { ++ int found; ++ if (num_ovls == OMAPFB_MAX_OVL_PER_FB) { ++ r = -EINVAL; ++ goto out; ++ } ++ ++ ovlnum = simple_strtoul(p, &p, 0); ++ if (ovlnum > fbdev->num_overlays) { ++ r = -EINVAL; ++ goto out; ++ } ++ ++ found = 0; ++ for (i = 0; i < num_ovls; ++i) { ++ if (ovls[i] == fbdev->overlays[ovlnum]) { ++ found = 1; ++ break; ++ } ++ } ++ ++ if (!found) ++ ovls[num_ovls++] = fbdev->overlays[ovlnum]; ++ ++ p++; ++ } ++ } ++ ++ for (i = 0; i < num_ovls; ++i) { ++ struct omapfb_info *ofbi2 = get_overlay_fb(fbdev, ovls[i]); ++ if (ofbi2 && ofbi2 != ofbi) { ++ dev_err(fbdev->dev, "overlay already in use\n"); ++ r = -EINVAL; ++ goto out; ++ } ++ } ++ ++ /* detach unused overlays */ ++ for (i = 0; i < ofbi->num_overlays; ++i) { ++ int t, found; ++ ++ ovl = ofbi->overlays[i]; ++ ++ found = 0; ++ ++ for (t = 0; t < num_ovls; ++t) { ++ if (ovl == ovls[t]) { ++ found = 1; ++ break; ++ } ++ } ++ ++ if (found) ++ continue; ++ ++ DBG("detaching %d\n", ofbi->overlays[i]->id); ++ ++ omapfb_overlay_enable(ovl, 0); ++ ++ if (ovl->manager) ++ ovl->manager->apply(ovl->manager); ++ ++ for (t = i + 1; t < ofbi->num_overlays; t++) { ++ ofbi->rotation[t-1] = ofbi->rotation[t]; ++ ofbi->overlays[t-1] = ofbi->overlays[t]; ++ } ++ ++ ofbi->num_overlays--; ++ i--; ++ } ++ ++ for (i = 0; i < num_ovls; ++i) { ++ int t, found; ++ ++ ovl = ovls[i]; ++ ++ found = 0; ++ ++ for (t = 0; t < ofbi->num_overlays; ++t) { ++ if (ovl == ofbi->overlays[t]) { ++ found = 1; ++ break; ++ } ++ } ++ ++ if (found) ++ continue; ++ ofbi->rotation[ofbi->num_overlays] = 0; ++ ofbi->overlays[ofbi->num_overlays++] = ovl; ++ ++ added = true; ++ } ++ ++ if (added) { ++ r = omapfb_apply_changes(fbi, 0); ++ if (r) ++ goto out; ++ } ++ ++ r = count; ++out: ++ unlock_fb_info(fbi); ++ omapfb_unlock(fbdev); ++ ++ return r; ++} ++ ++static ssize_t show_overlays_rotate(struct device *dev, ++ struct device_attribute *attr, char *buf) ++{ ++ struct fb_info *fbi = dev_get_drvdata(dev); ++ struct omapfb_info *ofbi = FB2OFB(fbi); ++ ssize_t l = 0; ++ int t; ++ ++ lock_fb_info(fbi); ++ ++ for (t = 0; t < ofbi->num_overlays; t++) { ++ l += snprintf(buf + l, PAGE_SIZE - l, "%s%d", ++ t == 0 ? "" : ",", ofbi->rotation[t]); ++ } ++ ++ l += snprintf(buf + l, PAGE_SIZE - l, "\n"); ++ ++ unlock_fb_info(fbi); ++ ++ return l; ++} ++ ++static ssize_t store_overlays_rotate(struct device *dev, ++ struct device_attribute *attr, const char *buf, size_t count) ++{ ++ struct fb_info *fbi = dev_get_drvdata(dev); ++ struct omapfb_info *ofbi = FB2OFB(fbi); ++ int num_ovls = 0, r, i; ++ int len; ++ bool changed = false; ++ u8 rotation[OMAPFB_MAX_OVL_PER_FB]; ++ ++ len = strlen(buf); ++ if (buf[len - 1] == '\n') ++ len = len - 1; ++ ++ lock_fb_info(fbi); ++ ++ if (len > 0) { ++ char *p = (char *)buf; ++ ++ while (p < buf + len) { ++ int rot; ++ ++ if (num_ovls == ofbi->num_overlays) { ++ r = -EINVAL; ++ goto out; ++ } ++ ++ rot = simple_strtoul(p, &p, 0); ++ if (rot < 0 || rot > 3) { ++ r = -EINVAL; ++ goto out; ++ } ++ ++ if (ofbi->rotation[num_ovls] != rot) ++ changed = true; ++ ++ rotation[num_ovls++] = rot; ++ ++ p++; ++ } ++ } ++ ++ if (num_ovls != ofbi->num_overlays) { ++ r = -EINVAL; ++ goto out; ++ } ++ ++ if (changed) { ++ for (i = 0; i < num_ovls; ++i) ++ ofbi->rotation[i] = rotation[i]; ++ ++ r = omapfb_apply_changes(fbi, 0); ++ if (r) ++ goto out; ++ ++ /* FIXME error handling? */ ++ } ++ ++ r = count; ++out: ++ unlock_fb_info(fbi); ++ ++ return r; ++} ++ ++static ssize_t show_size(struct device *dev, ++ struct device_attribute *attr, char *buf) ++{ ++ struct fb_info *fbi = dev_get_drvdata(dev); ++ struct omapfb_info *ofbi = FB2OFB(fbi); ++ ++ return snprintf(buf, PAGE_SIZE, "%lu\n", ofbi->region.size); ++} ++ ++static ssize_t store_size(struct device *dev, struct device_attribute *attr, ++ const char *buf, size_t count) ++{ ++ struct fb_info *fbi = dev_get_drvdata(dev); ++ struct omapfb_info *ofbi = FB2OFB(fbi); ++ unsigned long size; ++ int r; ++ int i; ++ ++ size = PAGE_ALIGN(simple_strtoul(buf, NULL, 0)); ++ ++ lock_fb_info(fbi); ++ ++ for (i = 0; i < ofbi->num_overlays; i++) { ++ if (ofbi->overlays[i]->info.enabled) { ++ r = -EBUSY; ++ goto out; ++ } ++ } ++ ++ if (size != ofbi->region.size) { ++ r = omapfb_realloc_fbmem(fbi, size, ofbi->region.type); ++ if (r) { ++ dev_err(dev, "realloc fbmem failed\n"); ++ goto out; ++ } ++ } ++ ++ r = count; ++out: ++ unlock_fb_info(fbi); ++ ++ return r; ++} ++ ++static ssize_t show_phys(struct device *dev, ++ struct device_attribute *attr, char *buf) ++{ ++ struct fb_info *fbi = dev_get_drvdata(dev); ++ struct omapfb_info *ofbi = FB2OFB(fbi); ++ ++ return snprintf(buf, PAGE_SIZE, "%0x\n", ofbi->region.paddr); ++} ++ ++static ssize_t show_virt(struct device *dev, ++ struct device_attribute *attr, char *buf) ++{ ++ struct fb_info *fbi = dev_get_drvdata(dev); ++ struct omapfb_info *ofbi = FB2OFB(fbi); ++ ++ return snprintf(buf, PAGE_SIZE, "%p\n", ofbi->region.vaddr); ++} ++ ++static struct device_attribute omapfb_attrs[] = { ++ __ATTR(rotate_type, S_IRUGO | S_IWUSR, show_rotate_type, ++ store_rotate_type), ++ __ATTR(mirror, S_IRUGO | S_IWUSR, show_mirror, store_mirror), ++ __ATTR(size, S_IRUGO | S_IWUSR, show_size, store_size), ++ __ATTR(overlays, S_IRUGO | S_IWUSR, show_overlays, store_overlays), ++ __ATTR(overlays_rotate, S_IRUGO | S_IWUSR, show_overlays_rotate, ++ store_overlays_rotate), ++ __ATTR(phys_addr, S_IRUGO, show_phys, NULL), ++ __ATTR(virt_addr, S_IRUGO, show_virt, NULL), ++}; ++ ++int omapfb_create_sysfs(struct omapfb2_device *fbdev) ++{ ++ int i; ++ int r; ++ ++ DBG("create sysfs for fbs\n"); ++ for (i = 0; i < fbdev->num_fbs; i++) { ++ int t; ++ for (t = 0; t < ARRAY_SIZE(omapfb_attrs); t++) { ++ r = device_create_file(fbdev->fbs[i]->dev, ++ &omapfb_attrs[t]); ++ ++ if (r) { ++ dev_err(fbdev->dev, "failed to create sysfs " ++ "file\n"); ++ return r; ++ } ++ } ++ } ++ ++ return 0; ++} ++ ++void omapfb_remove_sysfs(struct omapfb2_device *fbdev) ++{ ++ int i, t; ++ ++ DBG("remove sysfs for fbs\n"); ++ for (i = 0; i < fbdev->num_fbs; i++) { ++ for (t = 0; t < ARRAY_SIZE(omapfb_attrs); t++) ++ device_remove_file(fbdev->fbs[i]->dev, ++ &omapfb_attrs[t]); ++ } ++} ++ +diff --git a/drivers/video/omap2/omapfb/omapfb.h b/drivers/video/omap2/omapfb/omapfb.h +new file mode 100644 +index 0000000..d9ee986 +--- /dev/null ++++ b/drivers/video/omap2/omapfb/omapfb.h +@@ -0,0 +1,146 @@ ++/* ++ * linux/drivers/video/omap2/omapfb.h ++ * ++ * Copyright (C) 2008 Nokia Corporation ++ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com> ++ * ++ * Some code and ideas taken from drivers/video/omap/ driver ++ * by Imre Deak. ++ * ++ * This program is free software; you can redistribute it and/or modify it ++ * under the terms of the GNU General Public License version 2 as published by ++ * the Free Software Foundation. ++ * ++ * This program is distributed in the hope that it will be useful, but WITHOUT ++ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or ++ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for ++ * more details. ++ * ++ * You should have received a copy of the GNU General Public License along with ++ * this program. If not, see <http://www.gnu.org/licenses/>. ++ */ ++ ++#ifndef __DRIVERS_VIDEO_OMAP2_OMAPFB_H__ ++#define __DRIVERS_VIDEO_OMAP2_OMAPFB_H__ ++ ++#ifdef CONFIG_FB_OMAP2_DEBUG_SUPPORT ++#define DEBUG ++#endif ++ ++#include <mach/display.h> ++ ++#ifdef DEBUG ++extern unsigned int omapfb_debug; ++#define DBG(format, ...) \ ++ if (omapfb_debug) \ ++ printk(KERN_DEBUG "OMAPFB: " format, ## __VA_ARGS__) ++#else ++#define DBG(format, ...) ++#endif ++ ++#define FB2OFB(fb_info) ((struct omapfb_info *)(fb_info->par)) ++ ++/* max number of overlays to which a framebuffer data can be direct */ ++#define OMAPFB_MAX_OVL_PER_FB 3 ++ ++struct omapfb2_mem_region { ++ u32 paddr; ++ void __iomem *vaddr; ++ struct vrfb vrfb; ++ unsigned long size; ++ u8 type; /* OMAPFB_PLANE_MEM_* */ ++ bool alloc; /* allocated by the driver */ ++ bool map; /* kernel mapped by the driver */ ++}; ++ ++/* appended to fb_info */ ++struct omapfb_info { ++ int id; ++ struct omapfb2_mem_region region; ++ atomic_t map_count; ++ int num_overlays; ++ struct omap_overlay *overlays[OMAPFB_MAX_OVL_PER_FB]; ++ struct omapfb2_device *fbdev; ++ enum omap_dss_rotation_type rotation_type; ++ u8 rotation[OMAPFB_MAX_OVL_PER_FB]; ++ bool mirror; ++}; ++ ++struct omapfb2_device { ++ struct device *dev; ++ struct mutex mtx; ++ ++ u32 pseudo_palette[17]; ++ ++ int state; ++ ++ unsigned num_fbs; ++ struct fb_info *fbs[10]; ++ ++ unsigned num_displays; ++ struct omap_dss_device *displays[10]; ++ unsigned num_overlays; ++ struct omap_overlay *overlays[10]; ++ unsigned num_managers; ++ struct omap_overlay_manager *managers[10]; ++}; ++ ++struct omapfb_colormode { ++ enum omap_color_mode dssmode; ++ u32 bits_per_pixel; ++ u32 nonstd; ++ struct fb_bitfield red; ++ struct fb_bitfield green; ++ struct fb_bitfield blue; ++ struct fb_bitfield transp; ++}; ++ ++void set_fb_fix(struct fb_info *fbi); ++int check_fb_var(struct fb_info *fbi, struct fb_var_screeninfo *var); ++int omapfb_realloc_fbmem(struct fb_info *fbi, unsigned long size, int type); ++int omapfb_apply_changes(struct fb_info *fbi, int init); ++ ++int omapfb_create_sysfs(struct omapfb2_device *fbdev); ++void omapfb_remove_sysfs(struct omapfb2_device *fbdev); ++ ++int omapfb_ioctl(struct fb_info *fbi, unsigned int cmd, unsigned long arg); ++ ++int dss_mode_to_fb_mode(enum omap_color_mode dssmode, ++ struct fb_var_screeninfo *var); ++ ++/* find the display connected to this fb, if any */ ++static inline struct omap_dss_device *fb2display(struct fb_info *fbi) ++{ ++ struct omapfb_info *ofbi = FB2OFB(fbi); ++ int i; ++ ++ /* XXX: returns the display connected to first attached overlay */ ++ for (i = 0; i < ofbi->num_overlays; i++) { ++ if (ofbi->overlays[i]->manager) ++ return ofbi->overlays[i]->manager->device; ++ } ++ ++ return NULL; ++} ++ ++static inline void omapfb_lock(struct omapfb2_device *fbdev) ++{ ++ mutex_lock(&fbdev->mtx); ++} ++ ++static inline void omapfb_unlock(struct omapfb2_device *fbdev) ++{ ++ mutex_unlock(&fbdev->mtx); ++} ++ ++static inline int omapfb_overlay_enable(struct omap_overlay *ovl, ++ int enable) ++{ ++ struct omap_overlay_info info; ++ ++ ovl->get_overlay_info(ovl, &info); ++ info.enabled = enable; ++ return ovl->set_overlay_info(ovl, &info); ++} ++ ++#endif +diff --git a/drivers/video/omap2/vram.c b/drivers/video/omap2/vram.c +new file mode 100644 +index 0000000..634ce23 +--- /dev/null ++++ b/drivers/video/omap2/vram.c +@@ -0,0 +1,655 @@ ++/* ++ * VRAM manager for OMAP ++ * ++ * Copyright (C) 2009 Nokia Corporation ++ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com> ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 as ++ * published by the Free Software Foundation. ++ * ++ * This program is distributed in the hope that it will be useful, but ++ * WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU ++ * General Public License for more details. ++ * ++ * You should have received a copy of the GNU General Public License along ++ * with this program; if not, write to the Free Software Foundation, Inc., ++ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. ++ */ ++ ++/*#define DEBUG*/ ++ ++#include <linux/kernel.h> ++#include <linux/mm.h> ++#include <linux/list.h> ++#include <linux/seq_file.h> ++#include <linux/bootmem.h> ++#include <linux/completion.h> ++#include <linux/debugfs.h> ++#include <linux/jiffies.h> ++#include <linux/module.h> ++ ++#include <asm/setup.h> ++ ++#include <mach/sram.h> ++#include <mach/vram.h> ++#include <mach/dma.h> ++ ++#ifdef DEBUG ++#define DBG(format, ...) pr_debug("VRAM: " format, ## __VA_ARGS__) ++#else ++#define DBG(format, ...) ++#endif ++ ++#define OMAP2_SRAM_START 0x40200000 ++/* Maximum size, in reality this is smaller if SRAM is partially locked. */ ++#define OMAP2_SRAM_SIZE 0xa0000 /* 640k */ ++ ++/* postponed regions are used to temporarily store region information at boot ++ * time when we cannot yet allocate the region list */ ++#define MAX_POSTPONED_REGIONS 10 ++ ++static bool vram_initialized; ++static int postponed_cnt; ++static struct { ++ unsigned long paddr; ++ size_t size; ++} postponed_regions[MAX_POSTPONED_REGIONS]; ++ ++struct vram_alloc { ++ struct list_head list; ++ unsigned long paddr; ++ unsigned pages; ++}; ++ ++struct vram_region { ++ struct list_head list; ++ struct list_head alloc_list; ++ unsigned long paddr; ++ unsigned pages; ++}; ++ ++static DEFINE_MUTEX(region_mutex); ++static LIST_HEAD(region_list); ++ ++static inline int region_mem_type(unsigned long paddr) ++{ ++ if (paddr >= OMAP2_SRAM_START && ++ paddr < OMAP2_SRAM_START + OMAP2_SRAM_SIZE) ++ return OMAP_VRAM_MEMTYPE_SRAM; ++ else ++ return OMAP_VRAM_MEMTYPE_SDRAM; ++} ++ ++static struct vram_region *omap_vram_create_region(unsigned long paddr, ++ unsigned pages) ++{ ++ struct vram_region *rm; ++ ++ rm = kzalloc(sizeof(*rm), GFP_KERNEL); ++ ++ if (rm) { ++ INIT_LIST_HEAD(&rm->alloc_list); ++ rm->paddr = paddr; ++ rm->pages = pages; ++ } ++ ++ return rm; ++} ++ ++#if 0 ++static void omap_vram_free_region(struct vram_region *vr) ++{ ++ list_del(&vr->list); ++ kfree(vr); ++} ++#endif ++ ++static struct vram_alloc *omap_vram_create_allocation(struct vram_region *vr, ++ unsigned long paddr, unsigned pages) ++{ ++ struct vram_alloc *va; ++ struct vram_alloc *new; ++ ++ new = kzalloc(sizeof(*va), GFP_KERNEL); ++ ++ if (!new) ++ return NULL; ++ ++ new->paddr = paddr; ++ new->pages = pages; ++ ++ list_for_each_entry(va, &vr->alloc_list, list) { ++ if (va->paddr > new->paddr) ++ break; ++ } ++ ++ list_add_tail(&new->list, &va->list); ++ ++ return new; ++} ++ ++static void omap_vram_free_allocation(struct vram_alloc *va) ++{ ++ list_del(&va->list); ++ kfree(va); ++} ++ ++int omap_vram_add_region(unsigned long paddr, size_t size) ++{ ++ struct vram_region *rm; ++ unsigned pages; ++ ++ if (vram_initialized) { ++ DBG("adding region paddr %08lx size %d\n", ++ paddr, size); ++ ++ size &= PAGE_MASK; ++ pages = size >> PAGE_SHIFT; ++ ++ rm = omap_vram_create_region(paddr, pages); ++ if (rm == NULL) ++ return -ENOMEM; ++ ++ list_add(&rm->list, ®ion_list); ++ } else { ++ if (postponed_cnt == MAX_POSTPONED_REGIONS) ++ return -ENOMEM; ++ ++ postponed_regions[postponed_cnt].paddr = paddr; ++ postponed_regions[postponed_cnt].size = size; ++ ++ ++postponed_cnt; ++ } ++ return 0; ++} ++ ++int omap_vram_free(unsigned long paddr, size_t size) ++{ ++ struct vram_region *rm; ++ struct vram_alloc *alloc; ++ unsigned start, end; ++ ++ DBG("free mem paddr %08lx size %d\n", paddr, size); ++ ++ size = PAGE_ALIGN(size); ++ ++ mutex_lock(®ion_mutex); ++ ++ list_for_each_entry(rm, ®ion_list, list) { ++ list_for_each_entry(alloc, &rm->alloc_list, list) { ++ start = alloc->paddr; ++ end = alloc->paddr + (alloc->pages >> PAGE_SHIFT); ++ ++ if (start >= paddr && end < paddr + size) ++ goto found; ++ } ++ } ++ ++ mutex_unlock(®ion_mutex); ++ return -EINVAL; ++ ++found: ++ omap_vram_free_allocation(alloc); ++ ++ mutex_unlock(®ion_mutex); ++ return 0; ++} ++EXPORT_SYMBOL(omap_vram_free); ++ ++static int _omap_vram_reserve(unsigned long paddr, unsigned pages) ++{ ++ struct vram_region *rm; ++ struct vram_alloc *alloc; ++ size_t size; ++ ++ size = pages << PAGE_SHIFT; ++ ++ list_for_each_entry(rm, ®ion_list, list) { ++ unsigned long start, end; ++ ++ DBG("checking region %lx %d\n", rm->paddr, rm->pages); ++ ++ if (region_mem_type(rm->paddr) != region_mem_type(paddr)) ++ continue; ++ ++ start = rm->paddr; ++ end = start + (rm->pages << PAGE_SHIFT) - 1; ++ if (start > paddr || end < paddr + size - 1) ++ continue; ++ ++ DBG("block ok, checking allocs\n"); ++ ++ list_for_each_entry(alloc, &rm->alloc_list, list) { ++ end = alloc->paddr - 1; ++ ++ if (start <= paddr && end >= paddr + size - 1) ++ goto found; ++ ++ start = alloc->paddr + (alloc->pages << PAGE_SHIFT); ++ } ++ ++ end = rm->paddr + (rm->pages << PAGE_SHIFT) - 1; ++ ++ if (!(start <= paddr && end >= paddr + size - 1)) ++ continue; ++found: ++ DBG("found area start %lx, end %lx\n", start, end); ++ ++ if (omap_vram_create_allocation(rm, paddr, pages) == NULL) ++ return -ENOMEM; ++ ++ return 0; ++ } ++ ++ return -ENOMEM; ++} ++ ++int omap_vram_reserve(unsigned long paddr, size_t size) ++{ ++ unsigned pages; ++ int r; ++ ++ DBG("reserve mem paddr %08lx size %d\n", paddr, size); ++ ++ size = PAGE_ALIGN(size); ++ pages = size >> PAGE_SHIFT; ++ ++ mutex_lock(®ion_mutex); ++ ++ r = _omap_vram_reserve(paddr, pages); ++ ++ mutex_unlock(®ion_mutex); ++ ++ return r; ++} ++EXPORT_SYMBOL(omap_vram_reserve); ++ ++static void _omap_vram_dma_cb(int lch, u16 ch_status, void *data) ++{ ++ struct completion *compl = data; ++ complete(compl); ++} ++ ++static int _omap_vram_clear(u32 paddr, unsigned pages) ++{ ++ struct completion compl; ++ unsigned elem_count; ++ unsigned frame_count; ++ int r; ++ int lch; ++ ++ init_completion(&compl); ++ ++ r = omap_request_dma(OMAP_DMA_NO_DEVICE, "VRAM DMA", ++ _omap_vram_dma_cb, ++ &compl, &lch); ++ if (r) { ++ pr_err("VRAM: request_dma failed for memory clear\n"); ++ return -EBUSY; ++ } ++ ++ elem_count = pages * PAGE_SIZE / 4; ++ frame_count = 1; ++ ++ omap_set_dma_transfer_params(lch, OMAP_DMA_DATA_TYPE_S32, ++ elem_count, frame_count, ++ OMAP_DMA_SYNC_ELEMENT, ++ 0, 0); ++ ++ omap_set_dma_dest_params(lch, 0, OMAP_DMA_AMODE_POST_INC, ++ paddr, 0, 0); ++ ++ omap_set_dma_color_mode(lch, OMAP_DMA_CONSTANT_FILL, 0x000000); ++ ++ omap_start_dma(lch); ++ ++ if (wait_for_completion_timeout(&compl, msecs_to_jiffies(1000)) == 0) { ++ omap_stop_dma(lch); ++ pr_err("VRAM: dma timeout while clearing memory\n"); ++ r = -EIO; ++ goto err; ++ } ++ ++ r = 0; ++err: ++ omap_free_dma(lch); ++ ++ return r; ++} ++ ++static int _omap_vram_alloc(int mtype, unsigned pages, unsigned long *paddr) ++{ ++ struct vram_region *rm; ++ struct vram_alloc *alloc; ++ ++ list_for_each_entry(rm, ®ion_list, list) { ++ unsigned long start, end; ++ ++ DBG("checking region %lx %d\n", rm->paddr, rm->pages); ++ ++ if (region_mem_type(rm->paddr) != mtype) ++ continue; ++ ++ start = rm->paddr; ++ ++ list_for_each_entry(alloc, &rm->alloc_list, list) { ++ end = alloc->paddr; ++ ++ if (end - start >= pages << PAGE_SHIFT) ++ goto found; ++ ++ start = alloc->paddr + (alloc->pages << PAGE_SHIFT); ++ } ++ ++ end = rm->paddr + (rm->pages << PAGE_SHIFT); ++found: ++ if (end - start < pages << PAGE_SHIFT) ++ continue; ++ ++ DBG("found %lx, end %lx\n", start, end); ++ ++ alloc = omap_vram_create_allocation(rm, start, pages); ++ if (alloc == NULL) ++ return -ENOMEM; ++ ++ *paddr = start; ++ ++ _omap_vram_clear(start, pages); ++ ++ return 0; ++ } ++ ++ return -ENOMEM; ++} ++ ++int omap_vram_alloc(int mtype, size_t size, unsigned long *paddr) ++{ ++ unsigned pages; ++ int r; ++ ++ BUG_ON(mtype > OMAP_VRAM_MEMTYPE_MAX || !size); ++ ++ DBG("alloc mem type %d size %d\n", mtype, size); ++ ++ size = PAGE_ALIGN(size); ++ pages = size >> PAGE_SHIFT; ++ ++ mutex_lock(®ion_mutex); ++ ++ r = _omap_vram_alloc(mtype, pages, paddr); ++ ++ mutex_unlock(®ion_mutex); ++ ++ return r; ++} ++EXPORT_SYMBOL(omap_vram_alloc); ++ ++void omap_vram_get_info(unsigned long *vram, ++ unsigned long *free_vram, ++ unsigned long *largest_free_block) ++{ ++ struct vram_region *vr; ++ struct vram_alloc *va; ++ ++ *vram = 0; ++ *free_vram = 0; ++ *largest_free_block = 0; ++ ++ mutex_lock(®ion_mutex); ++ ++ list_for_each_entry(vr, ®ion_list, list) { ++ unsigned free; ++ unsigned long pa; ++ ++ pa = vr->paddr; ++ *vram += vr->pages << PAGE_SHIFT; ++ ++ list_for_each_entry(va, &vr->alloc_list, list) { ++ free = va->paddr - pa; ++ *free_vram += free; ++ if (free > *largest_free_block) ++ *largest_free_block = free; ++ pa = va->paddr + (va->pages << PAGE_SHIFT); ++ } ++ ++ free = vr->paddr + (vr->pages << PAGE_SHIFT) - pa; ++ *free_vram += free; ++ if (free > *largest_free_block) ++ *largest_free_block = free; ++ } ++ ++ mutex_unlock(®ion_mutex); ++} ++EXPORT_SYMBOL(omap_vram_get_info); ++ ++#if defined(CONFIG_DEBUG_FS) ++static int vram_debug_show(struct seq_file *s, void *unused) ++{ ++ struct vram_region *vr; ++ struct vram_alloc *va; ++ unsigned size; ++ ++ mutex_lock(®ion_mutex); ++ ++ list_for_each_entry(vr, ®ion_list, list) { ++ size = vr->pages << PAGE_SHIFT; ++ seq_printf(s, "%08lx-%08lx (%d bytes)\n", ++ vr->paddr, vr->paddr + size - 1, ++ size); ++ ++ list_for_each_entry(va, &vr->alloc_list, list) { ++ size = va->pages << PAGE_SHIFT; ++ seq_printf(s, " %08lx-%08lx (%d bytes)\n", ++ va->paddr, va->paddr + size - 1, ++ size); ++ } ++ } ++ ++ mutex_unlock(®ion_mutex); ++ ++ return 0; ++} ++ ++static int vram_debug_open(struct inode *inode, struct file *file) ++{ ++ return single_open(file, vram_debug_show, inode->i_private); ++} ++ ++static const struct file_operations vram_debug_fops = { ++ .open = vram_debug_open, ++ .read = seq_read, ++ .llseek = seq_lseek, ++ .release = single_release, ++}; ++ ++static int __init omap_vram_create_debugfs(void) ++{ ++ struct dentry *d; ++ ++ d = debugfs_create_file("vram", S_IRUGO, NULL, ++ NULL, &vram_debug_fops); ++ if (IS_ERR(d)) ++ return PTR_ERR(d); ++ ++ return 0; ++} ++#endif ++ ++static __init int omap_vram_init(void) ++{ ++ int i; ++ ++ vram_initialized = 1; ++ ++ for (i = 0; i < postponed_cnt; i++) ++ omap_vram_add_region(postponed_regions[i].paddr, ++ postponed_regions[i].size); ++ ++#ifdef CONFIG_DEBUG_FS ++ if (omap_vram_create_debugfs()) ++ pr_err("VRAM: Failed to create debugfs file\n"); ++#endif ++ ++ return 0; ++} ++ ++arch_initcall(omap_vram_init); ++ ++/* boottime vram alloc stuff */ ++ ++/* set from board file */ ++static u32 omap_vram_sram_start __initdata; ++static u32 omap_vram_sram_size __initdata; ++ ++/* set from board file */ ++static u32 omap_vram_sdram_start __initdata; ++static u32 omap_vram_sdram_size __initdata; ++ ++/* set from kernel cmdline */ ++static u32 omap_vram_def_sdram_size __initdata; ++static u32 omap_vram_def_sdram_start __initdata; ++ ++static void __init omap_vram_early_vram(char **p) ++{ ++ omap_vram_def_sdram_size = memparse(*p, p); ++ if (**p == ',') ++ omap_vram_def_sdram_start = simple_strtoul((*p) + 1, p, 16); ++} ++__early_param("vram=", omap_vram_early_vram); ++ ++/* ++ * Called from map_io. We need to call to this early enough so that we ++ * can reserve the fixed SDRAM regions before VM could get hold of them. ++ */ ++void __init omap_vram_reserve_sdram(void) ++{ ++ struct bootmem_data *bdata; ++ unsigned long sdram_start, sdram_size; ++ u32 paddr; ++ u32 size = 0; ++ ++ /* cmdline arg overrides the board file definition */ ++ if (omap_vram_def_sdram_size) { ++ size = omap_vram_def_sdram_size; ++ paddr = omap_vram_def_sdram_start; ++ } ++ ++ if (!size) { ++ size = omap_vram_sdram_size; ++ paddr = omap_vram_sdram_start; ++ } ++ ++#ifdef CONFIG_OMAP2_VRAM_SIZE ++ if (!size) { ++ size = CONFIG_OMAP2_VRAM_SIZE * 1024 * 1024; ++ paddr = 0; ++ } ++#endif ++ ++ if (!size) ++ return; ++ ++ size = PAGE_ALIGN(size); ++ ++ bdata = NODE_DATA(0)->bdata; ++ sdram_start = bdata->node_min_pfn << PAGE_SHIFT; ++ sdram_size = (bdata->node_low_pfn << PAGE_SHIFT) - sdram_start; ++ ++ if (paddr) { ++ if ((paddr & ~PAGE_MASK) || paddr < sdram_start || ++ paddr + size > sdram_start + sdram_size) { ++ pr_err("Illegal SDRAM region for VRAM\n"); ++ return; ++ } ++ ++ if (reserve_bootmem(paddr, size, BOOTMEM_EXCLUSIVE) < 0) { ++ pr_err("FB: failed to reserve VRAM\n"); ++ return; ++ } ++ } else { ++ if (size > sdram_size) { ++ pr_err("Illegal SDRAM size for VRAM\n"); ++ return; ++ } ++ ++ paddr = virt_to_phys(alloc_bootmem_pages(size)); ++ BUG_ON(paddr & ~PAGE_MASK); ++ } ++ ++ omap_vram_add_region(paddr, size); ++ ++ pr_info("Reserving %u bytes SDRAM for VRAM\n", size); ++} ++ ++/* ++ * Called at sram init time, before anything is pushed to the SRAM stack. ++ * Because of the stack scheme, we will allocate everything from the ++ * start of the lowest address region to the end of SRAM. This will also ++ * include padding for page alignment and possible holes between regions. ++ * ++ * As opposed to the SDRAM case, we'll also do any dynamic allocations at ++ * this point, since the driver built as a module would have problem with ++ * freeing / reallocating the regions. ++ */ ++unsigned long __init omap_vram_reserve_sram(unsigned long sram_pstart, ++ unsigned long sram_vstart, ++ unsigned long sram_size, ++ unsigned long pstart_avail, ++ unsigned long size_avail) ++{ ++ unsigned long pend_avail; ++ unsigned long reserved; ++ u32 paddr; ++ u32 size; ++ ++ paddr = omap_vram_sram_start; ++ size = omap_vram_sram_size; ++ ++ if (!size) ++ return 0; ++ ++ reserved = 0; ++ pend_avail = pstart_avail + size_avail; ++ ++ if (!paddr) { ++ /* Dynamic allocation */ ++ if ((size_avail & PAGE_MASK) < size) { ++ pr_err("Not enough SRAM for VRAM\n"); ++ return 0; ++ } ++ size_avail = (size_avail - size) & PAGE_MASK; ++ paddr = pstart_avail + size_avail; ++ } ++ ++ if (paddr < sram_pstart || ++ paddr + size > sram_pstart + sram_size) { ++ pr_err("Illegal SRAM region for VRAM\n"); ++ return 0; ++ } ++ ++ /* Reserve everything above the start of the region. */ ++ if (pend_avail - paddr > reserved) ++ reserved = pend_avail - paddr; ++ size_avail = pend_avail - reserved - pstart_avail; ++ ++ omap_vram_add_region(paddr, size); ++ ++ if (reserved) ++ pr_info("Reserving %lu bytes SRAM for VRAM\n", reserved); ++ ++ return reserved; ++} ++ ++void __init omap_vram_set_sdram_vram(u32 size, u32 start) ++{ ++ omap_vram_sdram_start = start; ++ omap_vram_sdram_size = size; ++} ++ ++void __init omap_vram_set_sram_vram(u32 size, u32 start) ++{ ++ omap_vram_sram_start = start; ++ omap_vram_sram_size = size; ++} +diff --git a/drivers/video/omap2/vrfb.c b/drivers/video/omap2/vrfb.c +new file mode 100644 +index 0000000..8726689 +--- /dev/null ++++ b/drivers/video/omap2/vrfb.c +@@ -0,0 +1,277 @@ ++/* ++ * VRFB Rotation Engine ++ * ++ * Copyright (C) 2009 Nokia Corporation ++ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com> ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 as ++ * published by the Free Software Foundation. ++ * ++ * This program is distributed in the hope that it will be useful, but ++ * WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU ++ * General Public License for more details. ++ * ++ * You should have received a copy of the GNU General Public License along ++ * with this program; if not, write to the Free Software Foundation, Inc., ++ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. ++ */ ++ ++#include <linux/kernel.h> ++#include <linux/module.h> ++#include <linux/ioport.h> ++#include <linux/io.h> ++#include <linux/bitops.h> ++#include <linux/mutex.h> ++ ++#include <mach/io.h> ++#include <mach/vrfb.h> ++#include <mach/sdrc.h> ++/*#define DEBUG*/ ++ ++#ifdef DEBUG ++#define DBG(format, ...) pr_debug("VRFB: " format, ## __VA_ARGS__) ++#else ++#define DBG(format, ...) ++#endif ++ ++#define SMS_ROT_VIRT_BASE(context, rot) \ ++ (((context >= 4) ? 0xD0000000 : 0x70000000) \ ++ + (0x4000000 * (context)) \ ++ + (0x1000000 * (rot))) ++ ++#define OMAP_VRFB_SIZE (2048 * 2048 * 4) ++ ++#define VRFB_PAGE_WIDTH_EXP 5 /* Assuming SDRAM pagesize= 1024 */ ++#define VRFB_PAGE_HEIGHT_EXP 5 /* 1024 = 2^5 * 2^5 */ ++#define VRFB_PAGE_WIDTH (1 << VRFB_PAGE_WIDTH_EXP) ++#define VRFB_PAGE_HEIGHT (1 << VRFB_PAGE_HEIGHT_EXP) ++#define SMS_IMAGEHEIGHT_OFFSET 16 ++#define SMS_IMAGEWIDTH_OFFSET 0 ++#define SMS_PH_OFFSET 8 ++#define SMS_PW_OFFSET 4 ++#define SMS_PS_OFFSET 0 ++ ++#define VRFB_NUM_CTXS 12 ++/* bitmap of reserved contexts */ ++static unsigned long ctx_map; ++/* bitmap of contexts for which we have to keep the HW context valid */ ++static unsigned long ctx_map_active; ++ ++static DEFINE_MUTEX(ctx_lock); ++ ++/* ++ * Access to this happens from client drivers or the PM core after wake-up. ++ * For the first case we require locking at the driver level, for the second ++ * we don't need locking, since no drivers will run until after the wake-up ++ * has finished. ++ */ ++static struct { ++ u32 physical_ba; ++ u32 control; ++ u32 size; ++} vrfb_hw_context[VRFB_NUM_CTXS]; ++ ++static inline void restore_hw_context(int ctx) ++{ ++ omap2_sms_write_rot_control(vrfb_hw_context[ctx].control, ctx); ++ omap2_sms_write_rot_size(vrfb_hw_context[ctx].size, ctx); ++ omap2_sms_write_rot_physical_ba(vrfb_hw_context[ctx].physical_ba, ctx); ++} ++ ++void omap_vrfb_restore_context(void) ++{ ++ int i; ++ unsigned long map = ctx_map_active; ++ ++ for (i = ffs(map); i; i = ffs(map)) { ++ /* i=1..32 */ ++ i--; ++ map &= ~(1 << i); ++ restore_hw_context(i); ++ } ++} ++ ++void omap_vrfb_adjust_size(u16 *width, u16 *height, ++ u8 bytespp) ++{ ++ *width = ALIGN(*width * bytespp, VRFB_PAGE_WIDTH) / bytespp; ++ *height = ALIGN(*height, VRFB_PAGE_HEIGHT); ++} ++EXPORT_SYMBOL(omap_vrfb_adjust_size); ++ ++void omap_vrfb_setup(struct vrfb *vrfb, unsigned long paddr, ++ u16 width, u16 height, ++ unsigned bytespp, bool yuv_mode) ++{ ++ unsigned pixel_size_exp; ++ u16 vrfb_width; ++ u16 vrfb_height; ++ u8 ctx = vrfb->context; ++ u32 size; ++ u32 control; ++ ++ DBG("omapfb_set_vrfb(%d, %lx, %dx%d, %d)\n", ctx, paddr, ++ width, height, color_mode); ++ ++ /* For YUV2 and UYVY modes VRFB needs to handle pixels a bit ++ * differently. See TRM. */ ++ if (yuv_mode) { ++ bytespp *= 2; ++ width /= 2; ++ } ++ ++ if (bytespp == 4) ++ pixel_size_exp = 2; ++ else if (bytespp == 2) ++ pixel_size_exp = 1; ++ else ++ BUG(); ++ ++ vrfb_width = ALIGN(width * bytespp, VRFB_PAGE_WIDTH) / bytespp; ++ vrfb_height = ALIGN(height, VRFB_PAGE_HEIGHT); ++ ++ DBG("vrfb w %u, h %u bytespp %d\n", vrfb_width, vrfb_height, bytespp); ++ ++ size = vrfb_width << SMS_IMAGEWIDTH_OFFSET; ++ size |= vrfb_height << SMS_IMAGEHEIGHT_OFFSET; ++ ++ control = pixel_size_exp << SMS_PS_OFFSET; ++ control |= VRFB_PAGE_WIDTH_EXP << SMS_PW_OFFSET; ++ control |= VRFB_PAGE_HEIGHT_EXP << SMS_PH_OFFSET; ++ ++ vrfb_hw_context[ctx].physical_ba = paddr; ++ vrfb_hw_context[ctx].size = size; ++ vrfb_hw_context[ctx].control = control; ++ ++ omap2_sms_write_rot_physical_ba(paddr, ctx); ++ omap2_sms_write_rot_size(size, ctx); ++ omap2_sms_write_rot_control(control, ctx); ++ ++ DBG("vrfb offset pixels %d, %d\n", ++ vrfb_width - width, vrfb_height - height); ++ ++ vrfb->xoffset = vrfb_width - width; ++ vrfb->yoffset = vrfb_height - height; ++ vrfb->bytespp = bytespp; ++} ++EXPORT_SYMBOL(omap_vrfb_setup); ++ ++void omap_vrfb_release_ctx(struct vrfb *vrfb) ++{ ++ int rot; ++ int ctx = vrfb->context; ++ ++ if (ctx == 0xff) ++ return; ++ ++ DBG("release ctx %d\n", ctx); ++ ++ mutex_lock(&ctx_lock); ++ ++ BUG_ON(!(ctx_map & (1 << ctx))); ++ ++ clear_bit(ctx, &ctx_map_active); ++ clear_bit(ctx, &ctx_map); ++ ++ for (rot = 0; rot < 4; ++rot) { ++ if (vrfb->paddr[rot]) { ++ release_mem_region(vrfb->paddr[rot], OMAP_VRFB_SIZE); ++ vrfb->paddr[rot] = 0; ++ } ++ } ++ ++ vrfb->context = 0xff; ++ ++ mutex_unlock(&ctx_lock); ++} ++EXPORT_SYMBOL(omap_vrfb_release_ctx); ++ ++int omap_vrfb_request_ctx(struct vrfb *vrfb) ++{ ++ int rot; ++ u32 paddr; ++ u8 ctx; ++ int r; ++ ++ DBG("request ctx\n"); ++ ++ mutex_lock(&ctx_lock); ++ ++ for (ctx = 0; ctx < VRFB_NUM_CTXS; ++ctx) ++ if ((ctx_map & (1 << ctx)) == 0) ++ break; ++ ++ if (ctx == VRFB_NUM_CTXS) { ++ pr_err("vrfb: no free contexts\n"); ++ r = -EBUSY; ++ goto out; ++ } ++ ++ DBG("found free ctx %d\n", ctx); ++ ++ set_bit(ctx, &ctx_map); ++ WARN_ON(ctx_map_active & (1 << ctx)); ++ set_bit(ctx, &ctx_map_active); ++ ++ memset(vrfb, 0, sizeof(*vrfb)); ++ ++ vrfb->context = ctx; ++ ++ for (rot = 0; rot < 4; ++rot) { ++ paddr = SMS_ROT_VIRT_BASE(ctx, rot); ++ if (!request_mem_region(paddr, OMAP_VRFB_SIZE, "vrfb")) { ++ pr_err("vrfb: failed to reserve VRFB " ++ "area for ctx %d, rotation %d\n", ++ ctx, rot * 90); ++ omap_vrfb_release_ctx(vrfb); ++ r = -ENOMEM; ++ goto out; ++ } ++ ++ vrfb->paddr[rot] = paddr; ++ ++ DBG("VRFB %d/%d: %lx\n", ctx, rot*90, vrfb->paddr[rot]); ++ } ++ ++ r = 0; ++out: ++ mutex_unlock(&ctx_lock); ++ return r; ++} ++EXPORT_SYMBOL(omap_vrfb_request_ctx); ++ ++void omap_vrfb_suspend_ctx(struct vrfb *vrfb) ++{ ++ DBG("suspend ctx %d\n", vrfb->context); ++ mutex_lock(&ctx_lock); ++ ++ BUG_ON(vrfb->context >= VRFB_NUM_CTXS); ++ BUG_ON(!((1 << vrfb->context) & ctx_map_active)); ++ ++ clear_bit(vrfb->context, &ctx_map_active); ++ mutex_unlock(&ctx_lock); ++} ++EXPORT_SYMBOL(omap_vrfb_suspend_ctx); ++ ++void omap_vrfb_resume_ctx(struct vrfb *vrfb) ++{ ++ DBG("resume ctx %d\n", vrfb->context); ++ mutex_lock(&ctx_lock); ++ ++ BUG_ON(vrfb->context >= VRFB_NUM_CTXS); ++ BUG_ON((1 << vrfb->context) & ctx_map_active); ++ ++ /* ++ * omap_vrfb_restore_context is normally called by the core domain ++ * save / restore logic, but since this VRFB context was suspended ++ * those calls didn't actually restore the context and now we might ++ * have an invalid context. Do an explicit restore here. ++ */ ++ restore_hw_context(vrfb->context); ++ set_bit(vrfb->context, &ctx_map_active); ++ mutex_unlock(&ctx_lock); ++} ++EXPORT_SYMBOL(omap_vrfb_resume_ctx); ++ +diff --git a/include/linux/omapfb.h b/include/linux/omapfb.h +new file mode 100644 +index 0000000..52e0987 +--- /dev/null ++++ b/include/linux/omapfb.h +@@ -0,0 +1,242 @@ ++/* ++ * File: include/linux/omapfb.h ++ * ++ * Framebuffer driver for TI OMAP boards ++ * ++ * Copyright (C) 2004 Nokia Corporation ++ * Author: Imre Deak <imre.deak@nokia.com> ++ * ++ * This program is free software; you can redistribute it and/or modify it ++ * under the terms of the GNU General Public License as published by the ++ * Free Software Foundation; either version 2 of the License, or (at your ++ * option) any later version. ++ * ++ * This program is distributed in the hope that it will be useful, but ++ * WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU ++ * General Public License for more details. ++ * ++ * You should have received a copy of the GNU General Public License along ++ * with this program; if not, write to the Free Software Foundation, Inc., ++ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. ++ */ ++ ++#ifndef __LINUX_OMAPFB_H__ ++#define __LINUX_OMAPFB_H__ ++ ++#include <linux/fb.h> ++#include <linux/ioctl.h> ++#include <linux/types.h> ++ ++/* IOCTL commands. */ ++ ++#define OMAP_IOW(num, dtype) _IOW('O', num, dtype) ++#define OMAP_IOR(num, dtype) _IOR('O', num, dtype) ++#define OMAP_IOWR(num, dtype) _IOWR('O', num, dtype) ++#define OMAP_IO(num) _IO('O', num) ++ ++#define OMAPFB_MIRROR OMAP_IOW(31, int) ++#define OMAPFB_SYNC_GFX OMAP_IO(37) ++#define OMAPFB_VSYNC OMAP_IO(38) ++#define OMAPFB_SET_UPDATE_MODE OMAP_IOW(40, int) ++#define OMAPFB_GET_CAPS OMAP_IOR(42, struct omapfb_caps) ++#define OMAPFB_GET_UPDATE_MODE OMAP_IOW(43, int) ++#define OMAPFB_LCD_TEST OMAP_IOW(45, int) ++#define OMAPFB_CTRL_TEST OMAP_IOW(46, int) ++#define OMAPFB_UPDATE_WINDOW_OLD OMAP_IOW(47, struct omapfb_update_window_old) ++#define OMAPFB_SET_COLOR_KEY OMAP_IOW(50, struct omapfb_color_key) ++#define OMAPFB_GET_COLOR_KEY OMAP_IOW(51, struct omapfb_color_key) ++#define OMAPFB_SETUP_PLANE OMAP_IOW(52, struct omapfb_plane_info) ++#define OMAPFB_QUERY_PLANE OMAP_IOW(53, struct omapfb_plane_info) ++#define OMAPFB_UPDATE_WINDOW OMAP_IOW(54, struct omapfb_update_window) ++#define OMAPFB_SETUP_MEM OMAP_IOW(55, struct omapfb_mem_info) ++#define OMAPFB_QUERY_MEM OMAP_IOW(56, struct omapfb_mem_info) ++#define OMAPFB_WAITFORVSYNC OMAP_IO(57) ++#define OMAPFB_MEMORY_READ OMAP_IOR(58, struct omapfb_memory_read) ++#define OMAPFB_GET_OVERLAY_COLORMODE OMAP_IOR(59, struct omapfb_ovl_colormode) ++#define OMAPFB_WAITFORGO OMAP_IO(60) ++#define OMAPFB_GET_VRAM_INFO OMAP_IOR(61, struct omapfb_vram_info) ++ ++#define OMAPFB_CAPS_GENERIC_MASK 0x00000fff ++#define OMAPFB_CAPS_LCDC_MASK 0x00fff000 ++#define OMAPFB_CAPS_PANEL_MASK 0xff000000 ++ ++#define OMAPFB_CAPS_MANUAL_UPDATE 0x00001000 ++#define OMAPFB_CAPS_TEARSYNC 0x00002000 ++#define OMAPFB_CAPS_PLANE_RELOCATE_MEM 0x00004000 ++#define OMAPFB_CAPS_PLANE_SCALE 0x00008000 ++#define OMAPFB_CAPS_WINDOW_PIXEL_DOUBLE 0x00010000 ++#define OMAPFB_CAPS_WINDOW_SCALE 0x00020000 ++#define OMAPFB_CAPS_WINDOW_OVERLAY 0x00040000 ++#define OMAPFB_CAPS_WINDOW_ROTATE 0x00080000 ++#define OMAPFB_CAPS_SET_BACKLIGHT 0x01000000 ++ ++/* Values from DSP must map to lower 16-bits */ ++#define OMAPFB_FORMAT_MASK 0x00ff ++#define OMAPFB_FORMAT_FLAG_DOUBLE 0x0100 ++#define OMAPFB_FORMAT_FLAG_TEARSYNC 0x0200 ++#define OMAPFB_FORMAT_FLAG_FORCE_VSYNC 0x0400 ++#define OMAPFB_FORMAT_FLAG_ENABLE_OVERLAY 0x0800 ++#define OMAPFB_FORMAT_FLAG_DISABLE_OVERLAY 0x1000 ++ ++#define OMAPFB_MEMTYPE_SDRAM 0 ++#define OMAPFB_MEMTYPE_SRAM 1 ++#define OMAPFB_MEMTYPE_MAX 1 ++ ++enum omapfb_color_format { ++ OMAPFB_COLOR_RGB565 = 0, ++ OMAPFB_COLOR_YUV422, ++ OMAPFB_COLOR_YUV420, ++ OMAPFB_COLOR_CLUT_8BPP, ++ OMAPFB_COLOR_CLUT_4BPP, ++ OMAPFB_COLOR_CLUT_2BPP, ++ OMAPFB_COLOR_CLUT_1BPP, ++ OMAPFB_COLOR_RGB444, ++ OMAPFB_COLOR_YUY422, ++ ++ OMAPFB_COLOR_ARGB16, ++ OMAPFB_COLOR_RGB24U, /* RGB24, 32-bit container */ ++ OMAPFB_COLOR_RGB24P, /* RGB24, 24-bit container */ ++ OMAPFB_COLOR_ARGB32, ++ OMAPFB_COLOR_RGBA32, ++ OMAPFB_COLOR_RGBX32, ++}; ++ ++struct omapfb_update_window { ++ __u32 x, y; ++ __u32 width, height; ++ __u32 format; ++ __u32 out_x, out_y; ++ __u32 out_width, out_height; ++ __u32 reserved[8]; ++}; ++ ++struct omapfb_update_window_old { ++ __u32 x, y; ++ __u32 width, height; ++ __u32 format; ++}; ++ ++enum omapfb_plane { ++ OMAPFB_PLANE_GFX = 0, ++ OMAPFB_PLANE_VID1, ++ OMAPFB_PLANE_VID2, ++}; ++ ++enum omapfb_channel_out { ++ OMAPFB_CHANNEL_OUT_LCD = 0, ++ OMAPFB_CHANNEL_OUT_DIGIT, ++}; ++ ++struct omapfb_plane_info { ++ __u32 pos_x; ++ __u32 pos_y; ++ __u8 enabled; ++ __u8 channel_out; ++ __u8 mirror; ++ __u8 reserved1; ++ __u32 out_width; ++ __u32 out_height; ++ __u32 reserved2[12]; ++}; ++ ++struct omapfb_mem_info { ++ __u32 size; ++ __u8 type; ++ __u8 reserved[3]; ++}; ++ ++struct omapfb_caps { ++ __u32 ctrl; ++ __u32 plane_color; ++ __u32 wnd_color; ++}; ++ ++enum omapfb_color_key_type { ++ OMAPFB_COLOR_KEY_DISABLED = 0, ++ OMAPFB_COLOR_KEY_GFX_DST, ++ OMAPFB_COLOR_KEY_VID_SRC, ++}; ++ ++struct omapfb_color_key { ++ __u8 channel_out; ++ __u32 background; ++ __u32 trans_key; ++ __u8 key_type; ++}; ++ ++enum omapfb_update_mode { ++ OMAPFB_UPDATE_DISABLED = 0, ++ OMAPFB_AUTO_UPDATE, ++ OMAPFB_MANUAL_UPDATE ++}; ++ ++struct omapfb_memory_read { ++ __u16 x; ++ __u16 y; ++ __u16 w; ++ __u16 h; ++ size_t buffer_size; ++ void __user *buffer; ++}; ++ ++struct omapfb_ovl_colormode { ++ __u8 overlay_idx; ++ __u8 mode_idx; ++ __u32 bits_per_pixel; ++ __u32 nonstd; ++ struct fb_bitfield red; ++ struct fb_bitfield green; ++ struct fb_bitfield blue; ++ struct fb_bitfield transp; ++}; ++ ++struct omapfb_vram_info { ++ __u32 total; ++ __u32 free; ++ __u32 largest_free_block; ++ __u32 reserved[5]; ++}; ++ ++#ifdef __KERNEL__ ++ ++#include <mach/board.h> ++ ++#ifdef CONFIG_ARCH_OMAP1 ++#define OMAPFB_PLANE_NUM 1 ++#else ++#define OMAPFB_PLANE_NUM 3 ++#endif ++ ++struct omapfb_mem_region { ++ u32 paddr; ++ void __iomem *vaddr; ++ unsigned long size; ++ u8 type; /* OMAPFB_PLANE_MEM_* */ ++ enum omapfb_color_format format;/* OMAPFB_COLOR_* */ ++ unsigned format_used:1; /* Must be set when format is set. ++ * Needed b/c of the badly chosen 0 ++ * base for OMAPFB_COLOR_* values ++ */ ++ unsigned alloc:1; /* allocated by the driver */ ++ unsigned map:1; /* kernel mapped by the driver */ ++}; ++ ++struct omapfb_mem_desc { ++ int region_cnt; ++ struct omapfb_mem_region region[OMAPFB_PLANE_NUM]; ++}; ++ ++struct omapfb_platform_data { ++ struct omap_lcd_config lcd; ++ struct omapfb_mem_desc mem_desc; ++ void *ctrl_platform_data; ++}; ++ ++/* in arch/arm/plat-omap/fb.c */ ++extern void omapfb_set_ctrl_platform_data(void *pdata); ++extern void omapfb_reserve_sdram(void); ++ ++#endif ++ ++#endif /* __OMAPFB_H */ |