diff options
Diffstat (limited to 'target/linux/lantiq/files-3.3/drivers/usb/dwc_otg/dwc_otg_cil.c')
| -rw-r--r-- | target/linux/lantiq/files-3.3/drivers/usb/dwc_otg/dwc_otg_cil.c | 3025 |
1 files changed, 0 insertions, 3025 deletions
diff --git a/target/linux/lantiq/files-3.3/drivers/usb/dwc_otg/dwc_otg_cil.c b/target/linux/lantiq/files-3.3/drivers/usb/dwc_otg/dwc_otg_cil.c deleted file mode 100644 index 42c69eb..0000000 --- a/target/linux/lantiq/files-3.3/drivers/usb/dwc_otg/dwc_otg_cil.c +++ /dev/null @@ -1,3025 +0,0 @@ -/* ========================================================================== - * $File: //dwh/usb_iip/dev/software/otg_ipmate/linux/drivers/dwc_otg_cil.c $ - * $Revision: 1.1.1.1 $ - * $Date: 2009-04-17 06:15:34 $ - * $Change: 631780 $ - * - * Synopsys HS OTG Linux Software Driver and documentation (hereinafter, - * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless - * otherwise expressly agreed to in writing between Synopsys and you. - * - * The Software IS NOT an item of Licensed Software or Licensed Product under - * any End User Software License Agreement or Agreement for Licensed Product - * with Synopsys or any supplement thereto. You are permitted to use and - * redistribute this Software in source and binary forms, with or without - * modification, provided that redistributions of source code must retain this - * notice. You may not view, use, disclose, copy or distribute this file or - * any information contained herein except pursuant to this license grant from - * Synopsys. If you do not agree with this notice, including the disclaimer - * below, then you are not authorized to use the Software. - * - * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT, - * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES - * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR - * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER - * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH - * DAMAGE. - * ========================================================================== */ - -/** @file - * - * The Core Interface Layer provides basic services for accessing and - * managing the DWC_otg hardware. These services are used by both the - * Host Controller Driver and the Peripheral Controller Driver. - * - * The CIL manages the memory map for the core so that the HCD and PCD - * don't have to do this separately. It also handles basic tasks like - * reading/writing the registers and data FIFOs in the controller. - * Some of the data access functions provide encapsulation of several - * operations required to perform a task, such as writing multiple - * registers to start a transfer. Finally, the CIL performs basic - * services that are not specific to either the host or device modes - * of operation. These services include management of the OTG Host - * Negotiation Protocol (HNP) and Session Request Protocol (SRP). A - * Diagnostic API is also provided to allow testing of the controller - * hardware. - * - * The Core Interface Layer has the following requirements: - * - Provides basic controller operations. - * - Minimal use of OS services. - * - The OS services used will be abstracted by using inline functions - * or macros. - * - */ -#include <asm/unaligned.h> - -#ifdef DEBUG -#include <linux/jiffies.h> -#endif - -#include "dwc_otg_plat.h" - -#include "dwc_otg_regs.h" -#include "dwc_otg_cil.h" - -/** - * This function is called to initialize the DWC_otg CSR data - * structures. The register addresses in the device and host - * structures are initialized from the base address supplied by the - * caller. The calling function must make the OS calls to get the - * base address of the DWC_otg controller registers. The core_params - * argument holds the parameters that specify how the core should be - * configured. - * - * @param[in] _reg_base_addr Base address of DWC_otg core registers - * @param[in] _core_params Pointer to the core configuration parameters - * - */ -dwc_otg_core_if_t *dwc_otg_cil_init(const uint32_t *_reg_base_addr, - dwc_otg_core_params_t *_core_params) -{ - dwc_otg_core_if_t *core_if = 0; - dwc_otg_dev_if_t *dev_if = 0; - dwc_otg_host_if_t *host_if = 0; - uint8_t *reg_base = (uint8_t *)_reg_base_addr; - int i = 0; - - DWC_DEBUGPL(DBG_CILV, "%s(%p,%p)\n", __func__, _reg_base_addr, _core_params); - - core_if = kmalloc( sizeof(dwc_otg_core_if_t), GFP_KERNEL); - if (core_if == 0) { - DWC_DEBUGPL(DBG_CIL, "Allocation of dwc_otg_core_if_t failed\n"); - return 0; - } - memset(core_if, 0, sizeof(dwc_otg_core_if_t)); - - core_if->core_params = _core_params; - core_if->core_global_regs = (dwc_otg_core_global_regs_t *)reg_base; - /* - * Allocate the Device Mode structures. - */ - dev_if = kmalloc( sizeof(dwc_otg_dev_if_t), GFP_KERNEL); - if (dev_if == 0) { - DWC_DEBUGPL(DBG_CIL, "Allocation of dwc_otg_dev_if_t failed\n"); - kfree( core_if ); - return 0; - } - - dev_if->dev_global_regs = - (dwc_otg_device_global_regs_t *)(reg_base + DWC_DEV_GLOBAL_REG_OFFSET); - - for (i=0; i<MAX_EPS_CHANNELS; i++) { - dev_if->in_ep_regs[i] = (dwc_otg_dev_in_ep_regs_t *) - (reg_base + DWC_DEV_IN_EP_REG_OFFSET + - (i * DWC_EP_REG_OFFSET)); - - dev_if->out_ep_regs[i] = (dwc_otg_dev_out_ep_regs_t *) - (reg_base + DWC_DEV_OUT_EP_REG_OFFSET + - (i * DWC_EP_REG_OFFSET)); - DWC_DEBUGPL(DBG_CILV, "in_ep_regs[%d]->diepctl=%p\n", - i, &dev_if->in_ep_regs[i]->diepctl); - DWC_DEBUGPL(DBG_CILV, "out_ep_regs[%d]->doepctl=%p\n", - i, &dev_if->out_ep_regs[i]->doepctl); - } - dev_if->speed = 0; // unknown - //dev_if->num_eps = MAX_EPS_CHANNELS; - //dev_if->num_perio_eps = 0; - - core_if->dev_if = dev_if; - /* - * Allocate the Host Mode structures. - */ - host_if = kmalloc( sizeof(dwc_otg_host_if_t), GFP_KERNEL); - if (host_if == 0) { - DWC_DEBUGPL(DBG_CIL, "Allocation of dwc_otg_host_if_t failed\n"); - kfree( dev_if ); - kfree( core_if ); - return 0; - } - - host_if->host_global_regs = (dwc_otg_host_global_regs_t *) - (reg_base + DWC_OTG_HOST_GLOBAL_REG_OFFSET); - host_if->hprt0 = (uint32_t*)(reg_base + DWC_OTG_HOST_PORT_REGS_OFFSET); - for (i=0; i<MAX_EPS_CHANNELS; i++) { - host_if->hc_regs[i] = (dwc_otg_hc_regs_t *) - (reg_base + DWC_OTG_HOST_CHAN_REGS_OFFSET + - (i * DWC_OTG_CHAN_REGS_OFFSET)); - DWC_DEBUGPL(DBG_CILV, "hc_reg[%d]->hcchar=%p\n", - i, &host_if->hc_regs[i]->hcchar); - } - host_if->num_host_channels = MAX_EPS_CHANNELS; - core_if->host_if = host_if; - - for (i=0; i<MAX_EPS_CHANNELS; i++) { - core_if->data_fifo[i] = - (uint32_t *)(reg_base + DWC_OTG_DATA_FIFO_OFFSET + - (i * DWC_OTG_DATA_FIFO_SIZE)); - DWC_DEBUGPL(DBG_CILV, "data_fifo[%d]=0x%08x\n", - i, (unsigned)core_if->data_fifo[i]); - } // for loop. - - core_if->pcgcctl = (uint32_t*)(reg_base + DWC_OTG_PCGCCTL_OFFSET); - - /* - * Store the contents of the hardware configuration registers here for - * easy access later. - */ - core_if->hwcfg1.d32 = dwc_read_reg32(&core_if->core_global_regs->ghwcfg1); - core_if->hwcfg2.d32 = dwc_read_reg32(&core_if->core_global_regs->ghwcfg2); - core_if->hwcfg3.d32 = dwc_read_reg32(&core_if->core_global_regs->ghwcfg3); - core_if->hwcfg4.d32 = dwc_read_reg32(&core_if->core_global_regs->ghwcfg4); - - DWC_DEBUGPL(DBG_CILV,"hwcfg1=%08x\n",core_if->hwcfg1.d32); - DWC_DEBUGPL(DBG_CILV,"hwcfg2=%08x\n",core_if->hwcfg2.d32); - DWC_DEBUGPL(DBG_CILV,"hwcfg3=%08x\n",core_if->hwcfg3.d32); - DWC_DEBUGPL(DBG_CILV,"hwcfg4=%08x\n",core_if->hwcfg4.d32); - - - DWC_DEBUGPL(DBG_CILV,"op_mode=%0x\n",core_if->hwcfg2.b.op_mode); - DWC_DEBUGPL(DBG_CILV,"arch=%0x\n",core_if->hwcfg2.b.architecture); - DWC_DEBUGPL(DBG_CILV,"num_dev_ep=%d\n",core_if->hwcfg2.b.num_dev_ep); - DWC_DEBUGPL(DBG_CILV,"num_host_chan=%d\n",core_if->hwcfg2.b.num_host_chan); - DWC_DEBUGPL(DBG_CILV,"nonperio_tx_q_depth=0x%0x\n",core_if->hwcfg2.b.nonperio_tx_q_depth); - DWC_DEBUGPL(DBG_CILV,"host_perio_tx_q_depth=0x%0x\n",core_if->hwcfg2.b.host_perio_tx_q_depth); - DWC_DEBUGPL(DBG_CILV,"dev_token_q_depth=0x%0x\n",core_if->hwcfg2.b.dev_token_q_depth); - - DWC_DEBUGPL(DBG_CILV,"Total FIFO SZ=%d\n", core_if->hwcfg3.b.dfifo_depth); - DWC_DEBUGPL(DBG_CILV,"xfer_size_cntr_width=%0x\n", core_if->hwcfg3.b.xfer_size_cntr_width); - - /* - * Set the SRP sucess bit for FS-I2c - */ - core_if->srp_success = 0; - core_if->srp_timer_started = 0; - - return core_if; -} -/** - * This function frees the structures allocated by dwc_otg_cil_init(). - * - * @param[in] _core_if The core interface pointer returned from - * dwc_otg_cil_init(). - * - */ -void dwc_otg_cil_remove( dwc_otg_core_if_t *_core_if ) -{ - /* Disable all interrupts */ - dwc_modify_reg32( &_core_if->core_global_regs->gahbcfg, 1, 0); - dwc_write_reg32( &_core_if->core_global_regs->gintmsk, 0); - - if ( _core_if->dev_if ) { - kfree( _core_if->dev_if ); - } - if ( _core_if->host_if ) { - kfree( _core_if->host_if ); - } - kfree( _core_if ); -} - -/** - * This function enables the controller's Global Interrupt in the AHB Config - * register. - * - * @param[in] _core_if Programming view of DWC_otg controller. - */ -extern void dwc_otg_enable_global_interrupts( dwc_otg_core_if_t *_core_if ) -{ - gahbcfg_data_t ahbcfg = { .d32 = 0}; - ahbcfg.b.glblintrmsk = 1; /* Enable interrupts */ - dwc_modify_reg32(&_core_if->core_global_regs->gahbcfg, 0, ahbcfg.d32); -} -/** - * This function disables the controller's Global Interrupt in the AHB Config - * register. - * - * @param[in] _core_if Programming view of DWC_otg controller. - */ -extern void dwc_otg_disable_global_interrupts( dwc_otg_core_if_t *_core_if ) -{ - gahbcfg_data_t ahbcfg = { .d32 = 0}; - ahbcfg.b.glblintrmsk = 1; /* Enable interrupts */ - dwc_modify_reg32(&_core_if->core_global_regs->gahbcfg, ahbcfg.d32, 0); -} - -/** - * This function initializes the commmon interrupts, used in both - * device and host modes. - * - * @param[in] _core_if Programming view of the DWC_otg controller - * - */ -static void dwc_otg_enable_common_interrupts(dwc_otg_core_if_t *_core_if) -{ - dwc_otg_core_global_regs_t *global_regs = - _core_if->core_global_regs; - gintmsk_data_t intr_mask = { .d32 = 0}; - /* Clear any pending OTG Interrupts */ - dwc_write_reg32( &global_regs->gotgint, 0xFFFFFFFF); - /* Clear any pending interrupts */ - dwc_write_reg32( &global_regs->gintsts, 0xFFFFFFFF); - /* - * Enable the interrupts in the GINTMSK. - */ - intr_mask.b.modemismatch = 1; - intr_mask.b.otgintr = 1; - if (!_core_if->dma_enable) { - intr_mask.b.rxstsqlvl = 1; - } - intr_mask.b.conidstschng = 1; - intr_mask.b.wkupintr = 1; - intr_mask.b.disconnect = 1; - intr_mask.b.usbsuspend = 1; - intr_mask.b.sessreqintr = 1; - dwc_write_reg32( &global_regs->gintmsk, intr_mask.d32); -} - -/** - * Initializes the FSLSPClkSel field of the HCFG register depending on the PHY - * type. - */ -static void init_fslspclksel(dwc_otg_core_if_t *_core_if) -{ - uint32_t val; - hcfg_data_t hcfg; - - if (((_core_if->hwcfg2.b.hs_phy_type == 2) && - (_core_if->hwcfg2.b.fs_phy_type == 1) && - (_core_if->core_params->ulpi_fs_ls)) || - (_core_if->core_params->phy_type == DWC_PHY_TYPE_PARAM_FS)) - { - /* Full speed PHY */ - val = DWC_HCFG_48_MHZ; - } else { - /* High speed PHY running at full speed or high speed */ - val = DWC_HCFG_30_60_MHZ; - } - - DWC_DEBUGPL(DBG_CIL, "Initializing HCFG.FSLSPClkSel to 0x%1x\n", val); - hcfg.d32 = dwc_read_reg32(&_core_if->host_if->host_global_regs->hcfg); - hcfg.b.fslspclksel = val; - dwc_write_reg32(&_core_if->host_if->host_global_regs->hcfg, hcfg.d32); -} - -/** - * Initializes the DevSpd field of the DCFG register depending on the PHY type - * and the enumeration speed of the device. - */ -static void init_devspd(dwc_otg_core_if_t *_core_if) -{ - uint32_t val; - dcfg_data_t dcfg; - - if (((_core_if->hwcfg2.b.hs_phy_type == 2) && - (_core_if->hwcfg2.b.fs_phy_type == 1) && - (_core_if->core_params->ulpi_fs_ls)) || - (_core_if->core_params->phy_type == DWC_PHY_TYPE_PARAM_FS)) - { - /* Full speed PHY */ - val = 0x3; - } else if (_core_if->core_params->speed == DWC_SPEED_PARAM_FULL) { - /* High speed PHY running at full speed */ - val = 0x1; - } else { - /* High speed PHY running at high speed */ - val = 0x0; - } - - DWC_DEBUGPL(DBG_CIL, "Initializing DCFG.DevSpd to 0x%1x\n", val); - dcfg.d32 = dwc_read_reg32(&_core_if->dev_if->dev_global_regs->dcfg); - dcfg.b.devspd = val; - dwc_write_reg32(&_core_if->dev_if->dev_global_regs->dcfg, dcfg.d32); -} - -/** - * This function calculates the number of IN EPS - * using GHWCFG1 and GHWCFG2 registers values - * - * @param _pcd the pcd structure. - */ -static uint32_t calc_num_in_eps(dwc_otg_core_if_t * _core_if) -{ - uint32_t num_in_eps = 0; - uint32_t num_eps = _core_if->hwcfg2.b.num_dev_ep; - uint32_t hwcfg1 = _core_if->hwcfg1.d32 >> 2; - uint32_t num_tx_fifos = _core_if->hwcfg4.b.num_in_eps; - int i; - for (i = 0; i < num_eps; ++i) { - if (!(hwcfg1 & 0x1)) - num_in_eps++; - hwcfg1 >>= 2; - } - if (_core_if->hwcfg4.b.ded_fifo_en) { - num_in_eps = (num_in_eps > num_tx_fifos) ? num_tx_fifos : num_in_eps; - } - return num_in_eps; -} - - -/** - * This function calculates the number of OUT EPS - * using GHWCFG1 and GHWCFG2 registers values - * - * @param _pcd the pcd structure. - */ -static uint32_t calc_num_out_eps(dwc_otg_core_if_t * _core_if) -{ - uint32_t num_out_eps = 0; - uint32_t num_eps = _core_if->hwcfg2.b.num_dev_ep; - uint32_t hwcfg1 = _core_if->hwcfg1.d32 >> 2; - int i; - for (i = 0; i < num_eps; ++i) { - if (!(hwcfg1 & 0x2)) - num_out_eps++; - hwcfg1 >>= 2; - } - return num_out_eps; -} -/** - * This function initializes the DWC_otg controller registers and - * prepares the core for device mode or host mode operation. - * - * @param _core_if Programming view of the DWC_otg controller - * - */ -void dwc_otg_core_init(dwc_otg_core_if_t *_core_if) -{ - dwc_otg_core_global_regs_t * global_regs = _core_if->core_global_regs; - dwc_otg_dev_if_t *dev_if = _core_if->dev_if; - int i = 0; - gahbcfg_data_t ahbcfg = { .d32 = 0}; - gusbcfg_data_t usbcfg = { .d32 = 0 }; - gi2cctl_data_t i2cctl = {.d32 = 0}; - - DWC_DEBUGPL(DBG_CILV, "dwc_otg_core_init(%p)\n",_core_if); - - /* Common Initialization */ - - usbcfg.d32 = dwc_read_reg32(&global_regs->gusbcfg); - DWC_DEBUGPL(DBG_CIL, "USB config register: 0x%08x\n", usbcfg.d32); - - /* Program the ULPI External VBUS bit if needed */ - //usbcfg.b.ulpi_ext_vbus_drv = 1; - //usbcfg.b.ulpi_ext_vbus_drv = 0; - usbcfg.b.ulpi_ext_vbus_drv = - (_core_if->core_params->phy_ulpi_ext_vbus == DWC_PHY_ULPI_EXTERNAL_VBUS) ? 1 : 0; - - /* Set external TS Dline pulsing */ - usbcfg.b.term_sel_dl_pulse = (_core_if->core_params->ts_dline == 1) ? 1 : 0; - dwc_write_reg32 (&global_regs->gusbcfg, usbcfg.d32); - - /* Reset the Controller */ - dwc_otg_core_reset( _core_if ); - - /* Initialize parameters from Hardware configuration registers. */ -#if 0 - dev_if->num_eps = _core_if->hwcfg2.b.num_dev_ep; - dev_if->num_perio_eps = _core_if->hwcfg4.b.num_dev_perio_in_ep; -#else - dev_if->num_in_eps = calc_num_in_eps(_core_if); - dev_if->num_out_eps = calc_num_out_eps(_core_if); -#endif - DWC_DEBUGPL(DBG_CIL, "num_dev_perio_in_ep=%d\n", - _core_if->hwcfg4.b.num_dev_perio_in_ep); - DWC_DEBUGPL(DBG_CIL, "Is power optimization enabled? %s\n", - _core_if->hwcfg4.b.power_optimiz ? "Yes" : "No"); - DWC_DEBUGPL(DBG_CIL, "vbus_valid filter enabled? %s\n", - _core_if->hwcfg4.b.vbus_valid_filt_en ? "Yes" : "No"); - DWC_DEBUGPL(DBG_CIL, "iddig filter enabled? %s\n", - _core_if->hwcfg4.b.iddig_filt_en ? "Yes" : "No"); - - DWC_DEBUGPL(DBG_CIL, "num_dev_perio_in_ep=%d\n",_core_if->hwcfg4.b.num_dev_perio_in_ep); - for (i=0; i < _core_if->hwcfg4.b.num_dev_perio_in_ep; i++) { - dev_if->perio_tx_fifo_size[i] = - dwc_read_reg32(&global_regs->dptxfsiz_dieptxf[i]) >> 16; - DWC_DEBUGPL(DBG_CIL, "Periodic Tx FIFO SZ #%d=0x%0x\n", i, - dev_if->perio_tx_fifo_size[i]); - } - for (i = 0; i < _core_if->hwcfg4.b.num_in_eps; i++) { - dev_if->tx_fifo_size[i] = - dwc_read_reg32(&global_regs->dptxfsiz_dieptxf[i]) >> 16; - DWC_DEBUGPL(DBG_CIL, "Tx FIFO SZ #%d=0x%0x\n", i, - dev_if->perio_tx_fifo_size[i]); - } - - _core_if->total_fifo_size = _core_if->hwcfg3.b.dfifo_depth; - _core_if->rx_fifo_size = dwc_read_reg32(&global_regs->grxfsiz); - _core_if->nperio_tx_fifo_size = dwc_read_reg32(&global_regs->gnptxfsiz) >> 16; - - DWC_DEBUGPL(DBG_CIL, "Total FIFO SZ=%d\n", _core_if->total_fifo_size); - DWC_DEBUGPL(DBG_CIL, "Rx FIFO SZ=%d\n", _core_if->rx_fifo_size); - DWC_DEBUGPL(DBG_CIL, "NP Tx FIFO SZ=%d\n", _core_if->nperio_tx_fifo_size); - - /* This programming sequence needs to happen in FS mode before any other - * programming occurs */ - if ((_core_if->core_params->speed == DWC_SPEED_PARAM_FULL) && - (_core_if->core_params->phy_type == DWC_PHY_TYPE_PARAM_FS)) { - /* If FS mode with FS PHY */ - - /* core_init() is now called on every switch so only call the - * following for the first time through. */ - if (!_core_if->phy_init_done) { - _core_if->phy_init_done = 1; - DWC_DEBUGPL(DBG_CIL, "FS_PHY detected\n"); - usbcfg.d32 = dwc_read_reg32(&global_regs->gusbcfg); - usbcfg.b.physel = 1; - dwc_write_reg32 (&global_regs->gusbcfg, usbcfg.d32); - - /* Reset after a PHY select */ - dwc_otg_core_reset( _core_if ); - } - - /* Program DCFG.DevSpd or HCFG.FSLSPclkSel to 48Mhz in FS. Also - * do this on HNP Dev/Host mode switches (done in dev_init and - * host_init). */ - if (dwc_otg_is_host_mode(_core_if)) { - DWC_DEBUGPL(DBG_CIL, "host mode\n"); - init_fslspclksel(_core_if); - } else { - DWC_DEBUGPL(DBG_CIL, "device mode\n"); - init_devspd(_core_if); - } - - if (_core_if->core_params->i2c_enable) { - DWC_DEBUGPL(DBG_CIL, "FS_PHY Enabling I2c\n"); - /* Program GUSBCFG.OtgUtmifsSel to I2C */ - usbcfg.d32 = dwc_read_reg32(&global_regs->gusbcfg); - usbcfg.b.otgutmifssel = 1; - dwc_write_reg32 (&global_regs->gusbcfg, usbcfg.d32); - - /* Program GI2CCTL.I2CEn */ - i2cctl.d32 = dwc_read_reg32(&global_regs->gi2cctl); - i2cctl.b.i2cdevaddr = 1; - i2cctl.b.i2cen = 0; - dwc_write_reg32 (&global_regs->gi2cctl, i2cctl.d32); - i2cctl.b.i2cen = 1; - dwc_write_reg32 (&global_regs->gi2cctl, i2cctl.d32); - } - - } /* endif speed == DWC_SPEED_PARAM_FULL */ - else { - /* High speed PHY. */ - if (!_core_if->phy_init_done) { - _core_if->phy_init_done = 1; - DWC_DEBUGPL(DBG_CIL, "High spped PHY\n"); - /* HS PHY parameters. These parameters are preserved - * during soft reset so only program the first time. Do - * a soft reset immediately after setting phyif. */ - usbcfg.b.ulpi_utmi_sel = _core_if->core_params->phy_type; - if (usbcfg.b.ulpi_utmi_sel == 2) { // winder - DWC_DEBUGPL(DBG_CIL, "ULPI\n"); - /* ULPI interface */ - usbcfg.b.phyif = 0; - usbcfg.b.ddrsel = _core_if->core_params->phy_ulpi_ddr; - } else { - /* UTMI+ interface */ - if (_core_if->core_params->phy_utmi_width == 16) { - usbcfg.b.phyif = 1; - DWC_DEBUGPL(DBG_CIL, "UTMI+ 16\n"); - } else { - DWC_DEBUGPL(DBG_CIL, "UTMI+ 8\n"); - usbcfg.b.phyif = 0; - } - } - dwc_write_reg32( &global_regs->gusbcfg, usbcfg.d32); - - /* Reset after setting the PHY parameters */ - dwc_otg_core_reset( _core_if ); - } - } - - if ((_core_if->hwcfg2.b.hs_phy_type == 2) && - (_core_if->hwcfg2.b.fs_phy_type == 1) && - (_core_if->core_params->ulpi_fs_ls)) - { - DWC_DEBUGPL(DBG_CIL, "Setting ULPI FSLS\n"); - usbcfg.d32 = dwc_read_reg32(&global_regs->gusbcfg); - usbcfg.b.ulpi_fsls = 1; - usbcfg.b.ulpi_clk_sus_m = 1; - dwc_write_reg32(&global_regs->gusbcfg, usbcfg.d32); - } else { - DWC_DEBUGPL(DBG_CIL, "Setting ULPI FSLS=0\n"); - usbcfg.d32 = dwc_read_reg32(&global_regs->gusbcfg); - usbcfg.b.ulpi_fsls = 0; - usbcfg.b.ulpi_clk_sus_m = 0; - dwc_write_reg32(&global_regs->gusbcfg, usbcfg.d32); - } - - /* Program the GAHBCFG Register.*/ - switch (_core_if->hwcfg2.b.architecture){ - - case DWC_SLAVE_ONLY_ARCH: - DWC_DEBUGPL(DBG_CIL, "Slave Only Mode\n"); - ahbcfg.b.nptxfemplvl_txfemplvl = DWC_GAHBCFG_TXFEMPTYLVL_HALFEMPTY; - ahbcfg.b.ptxfemplvl = DWC_GAHBCFG_TXFEMPTYLVL_HALFEMPTY; - _core_if->dma_enable = 0; - break; - - case DWC_EXT_DMA_ARCH: - DWC_DEBUGPL(DBG_CIL, "External DMA Mode\n"); - ahbcfg.b.hburstlen = _core_if->core_params->dma_burst_size; - _core_if->dma_enable = (_core_if->core_params->dma_enable != 0); - break; - - case DWC_INT_DMA_ARCH: - DWC_DEBUGPL(DBG_CIL, "Internal DMA Mode\n"); - //ahbcfg.b.hburstlen = DWC_GAHBCFG_INT_DMA_BURST_INCR; - ahbcfg.b.hburstlen = DWC_GAHBCFG_INT_DMA_BURST_INCR4; - _core_if->dma_enable = (_core_if->core_params->dma_enable != 0); - break; - } - ahbcfg.b.dmaenable = _core_if->dma_enable; - dwc_write_reg32(&global_regs->gahbcfg, ahbcfg.d32); - _core_if->en_multiple_tx_fifo = _core_if->hwcfg4.b.ded_fifo_en; - - /* - * Program the GUSBCFG register. - */ - usbcfg.d32 = dwc_read_reg32( &global_regs->gusbcfg ); - - switch (_core_if->hwcfg2.b.op_mode) { - case DWC_MODE_HNP_SRP_CAPABLE: - usbcfg.b.hnpcap = (_core_if->core_params->otg_cap == - DWC_OTG_CAP_PARAM_HNP_SRP_CAPABLE); - usbcfg.b.srpcap = (_core_if->core_params->otg_cap != - DWC_OTG_CAP_PARAM_NO_HNP_SRP_CAPABLE); - break; - - case DWC_MODE_SRP_ONLY_CAPABLE: - usbcfg.b.hnpcap = 0; - usbcfg.b.srpcap = (_core_if->core_params->otg_cap != - DWC_OTG_CAP_PARAM_NO_HNP_SRP_CAPABLE); - break; - - case DWC_MODE_NO_HNP_SRP_CAPABLE: - usbcfg.b.hnpcap = 0; - usbcfg.b.srpcap = 0; - break; - - case DWC_MODE_SRP_CAPABLE_DEVICE: - usbcfg.b.hnpcap = 0; - usbcfg.b.srpcap = (_core_if->core_params->otg_cap != - DWC_OTG_CAP_PARAM_NO_HNP_SRP_CAPABLE); - break; - - case DWC_MODE_NO_SRP_CAPABLE_DEVICE: - usbcfg.b.hnpcap = 0; - usbcfg.b.srpcap = 0; - break; - - case DWC_MODE_SRP_CAPABLE_HOST: - usbcfg.b.hnpcap = 0; - usbcfg.b.srpcap = (_core_if->core_params->otg_cap != - DWC_OTG_CAP_PARAM_NO_HNP_SRP_CAPABLE); - break; - - case DWC_MODE_NO_SRP_CAPABLE_HOST: - usbcfg.b.hnpcap = 0; - usbcfg.b.srpcap = 0; - break; - } - - dwc_write_reg32( &global_regs->gusbcfg, usbcfg.d32); - - /* Enable common interrupts */ - dwc_otg_enable_common_interrupts( _core_if ); - - /* Do device or host intialization based on mode during PCD - * and HCD initialization */ - if (dwc_otg_is_host_mode( _core_if )) { - DWC_DEBUGPL(DBG_ANY, "Host Mode\n" ); - _core_if->op_state = A_HOST; - } else { - DWC_DEBUGPL(DBG_ANY, "Device Mode\n" ); - _core_if->op_state = B_PERIPHERAL; -#ifdef DWC_DEVICE_ONLY - dwc_otg_core_dev_init( _core_if ); -#endif - } -} - - -/** - * This function enables the Device mode interrupts. - * - * @param _core_if Programming view of DWC_otg controller - */ -void dwc_otg_enable_device_interrupts(dwc_otg_core_if_t *_core_if) -{ - gintmsk_data_t intr_mask = { .d32 = 0}; - dwc_otg_core_global_regs_t * global_regs = _core_if->core_global_regs; - - DWC_DEBUGPL(DBG_CIL, "%s()\n", __func__); - - /* Disable all interrupts. */ - dwc_write_reg32( &global_regs->gintmsk, 0); - - /* Clear any pending interrupts */ - dwc_write_reg32( &global_regs->gintsts, 0xFFFFFFFF); - - /* Enable the common interrupts */ - dwc_otg_enable_common_interrupts( _core_if ); - - /* Enable interrupts */ - intr_mask.b.usbreset = 1; - intr_mask.b.enumdone = 1; - //intr_mask.b.epmismatch = 1; - intr_mask.b.inepintr = 1; - intr_mask.b.outepintr = 1; - intr_mask.b.erlysuspend = 1; - if (_core_if->en_multiple_tx_fifo == 0) { - intr_mask.b.epmismatch = 1; - } - - /** @todo NGS: Should this be a module parameter? */ - intr_mask.b.isooutdrop = 1; - intr_mask.b.eopframe = 1; - intr_mask.b.incomplisoin = 1; - intr_mask.b.incomplisoout = 1; - - dwc_modify_reg32( &global_regs->gintmsk, intr_mask.d32, intr_mask.d32); - - DWC_DEBUGPL(DBG_CIL, "%s() gintmsk=%0x\n", __func__, - dwc_read_reg32( &global_regs->gintmsk)); -} - -/** - * This function initializes the DWC_otg controller registers for - * device mode. - * - * @param _core_if Programming view of DWC_otg controller - * - */ -void dwc_otg_core_dev_init(dwc_otg_core_if_t *_core_if) -{ - dwc_otg_core_global_regs_t *global_regs = - _core_if->core_global_regs; - dwc_otg_dev_if_t *dev_if = _core_if->dev_if; - dwc_otg_core_params_t *params = _core_if->core_params; - dcfg_data_t dcfg = {.d32 = 0}; - grstctl_t resetctl = { .d32=0 }; - int i; - uint32_t rx_fifo_size; - fifosize_data_t nptxfifosize; - fifosize_data_t txfifosize; - dthrctl_data_t dthrctl; - - fifosize_data_t ptxfifosize; - - /* Restart the Phy Clock */ - dwc_write_reg32(_core_if->pcgcctl, 0); - - /* Device configuration register */ - init_devspd(_core_if); - dcfg.d32 = dwc_read_reg32( &dev_if->dev_global_regs->dcfg); - dcfg.b.perfrint = DWC_DCFG_FRAME_INTERVAL_80; - dwc_write_reg32( &dev_if->dev_global_regs->dcfg, dcfg.d32 ); - - /* Configure data FIFO sizes */ - if ( _core_if->hwcfg2.b.dynamic_fifo && params->enable_dynamic_fifo ) { - - DWC_DEBUGPL(DBG_CIL, "Total FIFO Size=%d\n", _core_if->total_fifo_size); - DWC_DEBUGPL(DBG_CIL, "Rx FIFO Size=%d\n", params->dev_rx_fifo_size); - DWC_DEBUGPL(DBG_CIL, "NP Tx FIFO Size=%d\n", params->dev_nperio_tx_fifo_size); - - /* Rx FIFO */ - DWC_DEBUGPL(DBG_CIL, "initial grxfsiz=%08x\n", - dwc_read_reg32(&global_regs->grxfsiz)); - rx_fifo_size = params->dev_rx_fifo_size; - dwc_write_reg32( &global_regs->grxfsiz, rx_fifo_size ); - DWC_DEBUGPL(DBG_CIL, "new grxfsiz=%08x\n", - dwc_read_reg32(&global_regs->grxfsiz)); - - /** Set Periodic Tx FIFO Mask all bits 0 */ - _core_if->p_tx_msk = 0; - - /** Set Tx FIFO Mask all bits 0 */ - _core_if->tx_msk = 0; - if (_core_if->en_multiple_tx_fifo == 0) { - /* Non-periodic Tx FIFO */ - DWC_DEBUGPL(DBG_CIL, "initial gnptxfsiz=%08x\n", - dwc_read_reg32(&global_regs->gnptxfsiz)); - nptxfifosize.b.depth = params->dev_nperio_tx_fifo_size; - nptxfifosize.b.startaddr = params->dev_rx_fifo_size; - dwc_write_reg32( &global_regs->gnptxfsiz, nptxfifosize.d32 ); - DWC_DEBUGPL(DBG_CIL, "new gnptxfsiz=%08x\n", - dwc_read_reg32(&global_regs->gnptxfsiz)); - - - /**@todo NGS: Fix Periodic FIFO Sizing! */ - /* - * Periodic Tx FIFOs These FIFOs are numbered from 1 to 15. - * Indexes of the FIFO size module parameters in the - * dev_perio_tx_fifo_size array and the FIFO size registers in - * the dptxfsiz array run from 0 to 14. - */ - /** @todo Finish debug of this */ - ptxfifosize.b.startaddr = - nptxfifosize.b.startaddr + nptxfifosize.b.depth; - for (i = 0; i < _core_if->hwcfg4.b.num_dev_perio_in_ep;i++) { - ptxfifosize.b.depth = params->dev_perio_tx_fifo_size[i]; - DWC_DEBUGPL(DBG_CIL,"initial dptxfsiz_dieptxf[%d]=%08x\n", - i,dwc_read_reg32(&global_regs->dptxfsiz_dieptxf[i])); - dwc_write_reg32(&global_regs->dptxfsiz_dieptxf[i],ptxfifosize.d32); - DWC_DEBUGPL(DBG_CIL,"new dptxfsiz_dieptxf[%d]=%08x\n", - i,dwc_read_reg32(&global_regs->dptxfsiz_dieptxf[i])); - ptxfifosize.b.startaddr += ptxfifosize.b.depth; - } - } else { - - /* - * Tx FIFOs These FIFOs are numbered from 1 to 15. - * Indexes of the FIFO size module parameters in the - * dev_tx_fifo_size array and the FIFO size registers in - * the dptxfsiz_dieptxf array run from 0 to 14. - */ - - /* Non-periodic Tx FIFO */ - DWC_DEBUGPL(DBG_CIL, "initial gnptxfsiz=%08x\n", - dwc_read_reg32(&global_regs->gnptxfsiz)); - nptxfifosize.b.depth = params->dev_nperio_tx_fifo_size; - nptxfifosize.b.startaddr = params->dev_rx_fifo_size; - dwc_write_reg32(&global_regs->gnptxfsiz, nptxfifosize.d32); - DWC_DEBUGPL(DBG_CIL, "new gnptxfsiz=%08x\n", - dwc_read_reg32(&global_regs->gnptxfsiz)); - txfifosize.b.startaddr = nptxfifosize.b.startaddr + nptxfifosize.b.depth; - for (i = 1;i < _core_if->hwcfg4.b.num_dev_perio_in_ep;i++) { - txfifosize.b.depth = params->dev_tx_fifo_size[i]; - DWC_DEBUGPL(DBG_CIL,"initial dptxfsiz_dieptxf[%d]=%08x\n", - i,dwc_read_reg32(&global_regs->dptxfsiz_dieptxf[i])); - dwc_write_reg32(&global_regs->dptxfsiz_dieptxf[i - 1],txfifosize.d32); - DWC_DEBUGPL(DBG_CIL,"new dptxfsiz_dieptxf[%d]=%08x\n", - i,dwc_read_reg32(&global_regs->dptxfsiz_dieptxf[i-1])); - txfifosize.b.startaddr += txfifosize.b.depth; - } - } - } - /* Flush the FIFOs */ - dwc_otg_flush_tx_fifo(_core_if, 0x10); /* all Tx FIFOs */ - dwc_otg_flush_rx_fifo(_core_if); - - /* Flush the Learning Queue. */ - resetctl.b.intknqflsh = 1; - dwc_write_reg32( &_core_if->core_global_regs->grstctl, resetctl.d32); - - /* Clear all pending Device Interrupts */ - dwc_write_reg32( &dev_if->dev_global_regs->diepmsk, 0 ); - dwc_write_reg32( &dev_if->dev_global_regs->doepmsk, 0 ); - dwc_write_reg32( &dev_if->dev_global_regs->daint, 0xFFFFFFFF ); - dwc_write_reg32( &dev_if->dev_global_regs->daintmsk, 0 ); - - for (i = 0; i <= dev_if->num_in_eps; i++) { - depctl_data_t depctl; - depctl.d32 = dwc_read_reg32(&dev_if->in_ep_regs[i]->diepctl); - if (depctl.b.epena) { - depctl.d32 = 0; - depctl.b.epdis = 1; - depctl.b.snak = 1; - } else { - depctl.d32 = 0; - } - dwc_write_reg32( &dev_if->in_ep_regs[i]->diepctl, depctl.d32); - - dwc_write_reg32(&dev_if->in_ep_regs[i]->dieptsiz, 0); - dwc_write_reg32(&dev_if->in_ep_regs[i]->diepdma, 0); - dwc_write_reg32(&dev_if->in_ep_regs[i]->diepint, 0xFF); - } - for (i = 0; i <= dev_if->num_out_eps; i++) { - depctl_data_t depctl; - depctl.d32 = dwc_read_reg32(&dev_if->out_ep_regs[i]->doepctl); - if (depctl.b.epena) { - depctl.d32 = 0; - depctl.b.epdis = 1; - depctl.b.snak = 1; - } else { - depctl.d32 = 0; - } - dwc_write_reg32( &dev_if->out_ep_regs[i]->doepctl, depctl.d32); - - //dwc_write_reg32( &dev_if->in_ep_regs[i]->dieptsiz, 0); - dwc_write_reg32( &dev_if->out_ep_regs[i]->doeptsiz, 0); - //dwc_write_reg32( &dev_if->in_ep_regs[i]->diepdma, 0); - dwc_write_reg32( &dev_if->out_ep_regs[i]->doepdma, 0); - //dwc_write_reg32( &dev_if->in_ep_regs[i]->diepint, 0xFF); - dwc_write_reg32( &dev_if->out_ep_regs[i]->doepint, 0xFF); - } - - if (_core_if->en_multiple_tx_fifo && _core_if->dma_enable) { - dev_if->non_iso_tx_thr_en = _core_if->core_params->thr_ctl & 0x1; - dev_if->iso_tx_thr_en = (_core_if->core_params->thr_ctl >> 1) & 0x1; - dev_if->rx_thr_en = (_core_if->core_params->thr_ctl >> 2) & 0x1; - dev_if->rx_thr_length = _core_if->core_params->rx_thr_length; - dev_if->tx_thr_length = _core_if->core_params->tx_thr_length; - dthrctl.d32 = 0; - dthrctl.b.non_iso_thr_en = dev_if->non_iso_tx_thr_en; - dthrctl.b.iso_thr_en = dev_if->iso_tx_thr_en; - dthrctl.b.tx_thr_len = dev_if->tx_thr_length; - dthrctl.b.rx_thr_en = dev_if->rx_thr_en; - dthrctl.b.rx_thr_len = dev_if->rx_thr_length; - dwc_write_reg32(&dev_if->dev_global_regs->dtknqr3_dthrctl,dthrctl.d32); - DWC_DEBUGPL(DBG_CIL, "Non ISO Tx Thr - %d\nISO Tx Thr - %d\n" - "Rx Thr - %d\nTx Thr Len - %d\nRx Thr Len - %d\n", - dthrctl.b.non_iso_thr_en, dthrctl.b.iso_thr_en, - dthrctl.b.rx_thr_en, dthrctl.b.tx_thr_len, - dthrctl.b.rx_thr_len); - } - dwc_otg_enable_device_interrupts( _core_if ); - { - diepmsk_data_t msk = {.d32 = 0}; - msk.b.txfifoundrn = 1; - dwc_modify_reg32(&dev_if->dev_global_regs->diepmsk, msk.d32,msk.d32); -} -} - -/** - * This function enables the Host mode interrupts. - * - * @param _core_if Programming view of DWC_otg controller - */ -void dwc_otg_enable_host_interrupts(dwc_otg_core_if_t *_core_if) -{ - dwc_otg_core_global_regs_t *global_regs = _core_if->core_global_regs; - gintmsk_data_t intr_mask = {.d32 = 0}; - - DWC_DEBUGPL(DBG_CIL, "%s()\n", __func__); - - /* Disable all interrupts. */ - dwc_write_reg32(&global_regs->gintmsk, 0); - - /* Clear any pending interrupts. */ - dwc_write_reg32(&global_regs->gintsts, 0xFFFFFFFF); - - /* Enable the common interrupts */ - dwc_otg_enable_common_interrupts(_core_if); - - /* - * Enable host mode interrupts without disturbing common - * interrupts. - */ - intr_mask.b.sofintr = 1; - intr_mask.b.portintr = 1; - intr_mask.b.hcintr = 1; - - //dwc_modify_reg32(&global_regs->gintmsk, intr_mask.d32, intr_mask.d32); - //dwc_modify_reg32(&global_regs->gintmsk, 0, intr_mask.d32); - dwc_modify_reg32(&global_regs->gintmsk, intr_mask.d32, intr_mask.d32); -} - -/** - * This function disables the Host Mode interrupts. - * - * @param _core_if Programming view of DWC_otg controller - */ -void dwc_otg_disable_host_interrupts(dwc_otg_core_if_t *_core_if) -{ - dwc_otg_core_global_regs_t *global_regs = - _core_if->core_global_regs; - gintmsk_data_t intr_mask = {.d32 = 0}; - - DWC_DEBUGPL(DBG_CILV, "%s()\n", __func__); - - /* - * Disable host mode interrupts without disturbing common - * interrupts. - */ - intr_mask.b.sofintr = 1; - intr_mask.b.portintr = 1; - intr_mask.b.hcintr = 1; - intr_mask.b.ptxfempty = 1; - intr_mask.b.nptxfempty = 1; - - dwc_modify_reg32(&global_regs->gintmsk, intr_mask.d32, 0); -} - -#if 0 -/* currently not used, keep it here as if needed later */ -static int phy_read(dwc_otg_core_if_t * _core_if, int addr) -{ - u32 val; - int timeout = 10; - - dwc_write_reg32(&_core_if->core_global_regs->gpvndctl, - 0x02000000 | (addr << 16)); - val = dwc_read_reg32(&_core_if->core_global_regs->gpvndctl); - while (((val & 0x08000000) == 0) && (timeout--)) { - udelay(1000); - val = dwc_read_reg32(&_core_if->core_global_regs->gpvndctl); - } - val = dwc_read_reg32(&_core_if->core_global_regs->gpvndctl); - printk("%s: addr=%02x regval=%02x\n", __func__, addr, val & 0x000000ff); - - return 0; -} -#endif - -/** - * This function initializes the DWC_otg controller registers for - * host mode. - * - * This function flushes the Tx and Rx FIFOs and it flushes any entries in the - * request queues. Host channels are reset to ensure that they are ready for - * performing transfers. - * - * @param _core_if Programming view of DWC_otg controller - * - */ -void dwc_otg_core_host_init(dwc_otg_core_if_t *_core_if) -{ - dwc_otg_core_global_regs_t *global_regs = _core_if->core_global_regs; - dwc_otg_host_if_t *host_if = _core_if->host_if; - dwc_otg_core_params_t *params = _core_if->core_params; - hprt0_data_t hprt0 = {.d32 = 0}; - fifosize_data_t nptxfifosize; - fifosize_data_t ptxfifosize; - int i; - hcchar_data_t hcchar; - hcfg_data_t hcfg; - dwc_otg_hc_regs_t *hc_regs; - int num_channels; - gotgctl_data_t gotgctl = {.d32 = 0}; - - DWC_DEBUGPL(DBG_CILV,"%s(%p)\n", __func__, _core_if); - - /* Restart the Phy Clock */ - dwc_write_reg32(_core_if->pcgcctl, 0); - - /* Initialize Host Configuration Register */ - init_fslspclksel(_core_if); - if (_core_if->core_params->speed == DWC_SPEED_PARAM_FULL) { - hcfg.d32 = dwc_read_reg32(&host_if->host_global_regs->hcfg); - hcfg.b.fslssupp = 1; - dwc_write_reg32(&host_if->host_global_regs->hcfg, hcfg.d32); - } - - /* Configure data FIFO sizes */ - if (_core_if->hwcfg2.b.dynamic_fifo && params->enable_dynamic_fifo) { - DWC_DEBUGPL(DBG_CIL,"Total FIFO Size=%d\n", _core_if->total_fifo_size); - DWC_DEBUGPL(DBG_CIL,"Rx FIFO Size=%d\n", params->host_rx_fifo_size); - DWC_DEBUGPL(DBG_CIL,"NP Tx FIFO Size=%d\n", params->host_nperio_tx_fifo_size); - DWC_DEBUGPL(DBG_CIL,"P Tx FIFO Size=%d\n", params->host_perio_tx_fifo_size); - - /* Rx FIFO */ - DWC_DEBUGPL(DBG_CIL,"initial grxfsiz=%08x\n", dwc_read_reg32(&global_regs->grxfsiz)); - dwc_write_reg32(&global_regs->grxfsiz, params->host_rx_fifo_size); - DWC_DEBUGPL(DBG_CIL,"new grxfsiz=%08x\n", dwc_read_reg32(&global_regs->grxfsiz)); - - /* Non-periodic Tx FIFO */ - DWC_DEBUGPL(DBG_CIL,"initial gnptxfsiz=%08x\n", dwc_read_reg32(&global_regs->gnptxfsiz)); - nptxfifosize.b.depth = params->host_nperio_tx_fifo_size; - nptxfifosize.b.startaddr = params->host_rx_fifo_size; - dwc_write_reg32(&global_regs->gnptxfsiz, nptxfifosize.d32); - DWC_DEBUGPL(DBG_CIL,"new gnptxfsiz=%08x\n", dwc_read_reg32(&global_regs->gnptxfsiz)); - - /* Periodic Tx FIFO */ - DWC_DEBUGPL(DBG_CIL,"initial hptxfsiz=%08x\n", dwc_read_reg32(&global_regs->hptxfsiz)); - ptxfifosize.b.depth = params->host_perio_tx_fifo_size; - ptxfifosize.b.startaddr = nptxfifosize.b.startaddr + nptxfifosize.b.depth; - dwc_write_reg32(&global_regs->hptxfsiz, ptxfifosize.d32); - DWC_DEBUGPL(DBG_CIL,"new hptxfsiz=%08x\n", dwc_read_reg32(&global_regs->hptxfsiz)); - } - - /* Clear Host Set HNP Enable in the OTG Control Register */ - gotgctl.b.hstsethnpen = 1; - dwc_modify_reg32( &global_regs->gotgctl, gotgctl.d32, 0); - - /* Make sure the FIFOs are flushed. */ - dwc_otg_flush_tx_fifo(_core_if, 0x10 /* all Tx FIFOs */); - dwc_otg_flush_rx_fifo(_core_if); - - /* Flush out any leftover queued requests. */ - num_channels = _core_if->core_params->host_channels; - for (i = 0; i < num_channels; i++) { - hc_regs = _core_if->host_if->hc_regs[i]; - hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar); - hcchar.b.chen = 0; - hcchar.b.chdis = 1; - hcchar.b.epdir = 0; - dwc_write_reg32(&hc_regs->hcchar, hcchar.d32); - } - - /* Halt all channels to put them into a known state. */ - for (i = 0; i < num_channels; i++) { - int count = 0; - hc_regs = _core_if->host_if->hc_regs[i]; - hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar); - hcchar.b.chen = 1; - hcchar.b.chdis = 1; - hcchar.b.epdir = 0; - dwc_write_reg32(&hc_regs->hcchar, hcchar.d32); - DWC_DEBUGPL(DBG_HCDV, "%s: Halt channel %d\n", __func__, i); - do { - hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar); - if (++count > 200) { - DWC_ERROR("%s: Unable to clear halt on channel %d\n", - __func__, i); - break; - } - udelay(100); - } while (hcchar.b.chen); - } - - /* Turn on the vbus power. */ - DWC_PRINT("Init: Port Power? op_state=%d\n", _core_if->op_state); - if (_core_if->op_state == A_HOST){ - hprt0.d32 = dwc_otg_read_hprt0(_core_if); - DWC_PRINT("Init: Power Port (%d)\n", hprt0.b.prtpwr); - if (hprt0.b.prtpwr == 0 ) { - hprt0.b.prtpwr = 1; - dwc_write_reg32(host_if->hprt0, hprt0.d32); - } - } - - dwc_otg_enable_host_interrupts( _core_if ); -} - -/** - * Prepares a host channel for transferring packets to/from a specific - * endpoint. The HCCHARn register is set up with the characteristics specified - * in _hc. Host channel interrupts that may need to be serviced while this - * transfer is in progress are enabled. - * - * @param _core_if Programming view of DWC_otg controller - * @param _hc Information needed to initialize the host channel - */ -void dwc_otg_hc_init(dwc_otg_core_if_t *_core_if, dwc_hc_t *_hc) -{ - uint32_t intr_enable; - hcintmsk_data_t hc_intr_mask; - gintmsk_data_t gintmsk = {.d32 = 0}; - hcchar_data_t hcchar; - hcsplt_data_t hcsplt; - - uint8_t hc_num = _hc->hc_num; - dwc_otg_host_if_t *host_if = _core_if->host_if; - dwc_otg_hc_regs_t *hc_regs = host_if->hc_regs[hc_num]; - - /* Clear old interrupt conditions for this host channel. */ - hc_intr_mask.d32 = 0xFFFFFFFF; - hc_intr_mask.b.reserved = 0; - dwc_write_reg32(&hc_regs->hcint, hc_intr_mask.d32); - - /* Enable channel interrupts required for this transfer. */ - hc_intr_mask.d32 = 0; - hc_intr_mask.b.chhltd = 1; - if (_core_if->dma_enable) { - hc_intr_mask.b.ahberr = 1; - if (_hc->error_state && !_hc->do_split && - _hc->ep_type != DWC_OTG_EP_TYPE_ISOC) { - hc_intr_mask.b.ack = 1; - if (_hc->ep_is_in) { - hc_intr_mask.b.datatglerr = 1; - if (_hc->ep_type != DWC_OTG_EP_TYPE_INTR) { - hc_intr_mask.b.nak = 1; - } - } - } - } else { - switch (_hc->ep_type) { - case DWC_OTG_EP_TYPE_CONTROL: - case DWC_OTG_EP_TYPE_BULK: - hc_intr_mask.b.xfercompl = 1; - hc_intr_mask.b.stall = 1; - hc_intr_mask.b.xacterr = 1; - hc_intr_mask.b.datatglerr = 1; - if (_hc->ep_is_in) { - hc_intr_mask.b.bblerr = 1; - } else { - hc_intr_mask.b.nak = 1; - hc_intr_mask.b.nyet = 1; - if (_hc->do_ping) { - hc_intr_mask.b.ack = 1; - } - } - - if (_hc->do_split) { - hc_intr_mask.b.nak = 1; - if (_hc->complete_split) { - hc_intr_mask.b.nyet = 1; - } - else { - hc_intr_mask.b.ack = 1; - } - } - - if (_hc->error_state) { - hc_intr_mask.b.ack = 1; - } - break; - case DWC_OTG_EP_TYPE_INTR: - hc_intr_mask.b.xfercompl = 1; - hc_intr_mask.b.nak = 1; - hc_intr_mask.b.stall = 1; - hc_intr_mask.b.xacterr = 1; - hc_intr_mask.b.datatglerr = 1; - hc_intr_mask.b.frmovrun = 1; - - if (_hc->ep_is_in) { - hc_intr_mask.b.bblerr = 1; - } - if (_hc->error_state) { - hc_intr_mask.b.ack = 1; - } - if (_hc->do_split) { - if (_hc->complete_split) { - hc_intr_mask.b.nyet = 1; - } - else { - hc_intr_mask.b.ack = 1; - } - } - break; - case DWC_OTG_EP_TYPE_ISOC: - hc_intr_mask.b.xfercompl = 1; - hc_intr_mask.b.frmovrun = 1; - hc_intr_mask.b.ack = 1; - - if (_hc->ep_is_in) { - hc_intr_mask.b.xacterr = 1; - hc_intr_mask.b.bblerr = 1; - } - break; - } - } - dwc_write_reg32(&hc_regs->hcintmsk, hc_intr_mask.d32); - - /* Enable the top level host channel interrupt. */ - intr_enable = (1 << hc_num); - dwc_modify_reg32(&host_if->host_global_regs->haintmsk, 0, intr_enable); - - /* Make sure host channel interrupts are enabled. */ - gintmsk.b.hcintr = 1; - dwc_modify_reg32(&_core_if->core_global_regs->gintmsk, 0, gintmsk.d32); - - /* - * Program the HCCHARn register with the endpoint characteristics for - * the current transfer. - */ - hcchar.d32 = 0; - hcchar.b.devaddr = _hc->dev_addr; - hcchar.b.epnum = _hc->ep_num; - hcchar.b.epdir = _hc->ep_is_in; - hcchar.b.lspddev = (_hc->speed == DWC_OTG_EP_SPEED_LOW); - hcchar.b.eptype = _hc->ep_type; - hcchar.b.mps = _hc->max_packet; - - dwc_write_reg32(&host_if->hc_regs[hc_num]->hcchar, hcchar.d32); - - DWC_DEBUGPL(DBG_HCDV, "%s: Channel %d\n", __func__, _hc->hc_num); - DWC_DEBUGPL(DBG_HCDV, " Dev Addr: %d\n", hcchar.b.devaddr); - DWC_DEBUGPL(DBG_HCDV, " Ep Num: %d\n", hcchar.b.epnum); - DWC_DEBUGPL(DBG_HCDV, " Is In: %d\n", hcchar.b.epdir); - DWC_DEBUGPL(DBG_HCDV, " Is Low Speed: %d\n", hcchar.b.lspddev); - DWC_DEBUGPL(DBG_HCDV, " Ep Type: %d\n", hcchar.b.eptype); - DWC_DEBUGPL(DBG_HCDV, " Max Pkt: %d\n", hcchar.b.mps); - DWC_DEBUGPL(DBG_HCDV, " Multi Cnt: %d\n", hcchar.b.multicnt); - - /* - * Program the HCSPLIT register for SPLITs - */ - hcsplt.d32 = 0; - if (_hc->do_split) { - DWC_DEBUGPL(DBG_HCDV, "Programming HC %d with split --> %s\n", _hc->hc_num, - _hc->complete_split ? "CSPLIT" : "SSPLIT"); - hcsplt.b.compsplt = _hc->complete_split; - hcsplt.b.xactpos = _hc->xact_pos; - hcsplt.b.hubaddr = _hc->hub_addr; - hcsplt.b.prtaddr = _hc->port_addr; - DWC_DEBUGPL(DBG_HCDV, " comp split %d\n", _hc->complete_split); - DWC_DEBUGPL(DBG_HCDV, " xact pos %d\n", _hc->xact_pos); - DWC_DEBUGPL(DBG_HCDV, " hub addr %d\n", _hc->hub_addr); - DWC_DEBUGPL(DBG_HCDV, " port addr %d\n", _hc->port_addr); - DWC_DEBUGPL(DBG_HCDV, " is_in %d\n", _hc->ep_is_in); - DWC_DEBUGPL(DBG_HCDV, " Max Pkt: %d\n", hcchar.b.mps); - DWC_DEBUGPL(DBG_HCDV, " xferlen: %d\n", _hc->xfer_len); - } - dwc_write_reg32(&host_if->hc_regs[hc_num]->hcsplt, hcsplt.d32); - -} - -/** - * Attempts to halt a host channel. This function should only be called in - * Slave mode or to abort a transfer in either Slave mode or DMA mode. Under - * normal circumstances in DMA mode, the controller halts the channel when the - * transfer is complete or a condition occurs that requires application - * intervention. - * - * In slave mode, checks for a free request queue entry, then sets the Channel - * Enable and Channel Disable bits of the Host Channel Characteristics - * register of the specified channel to intiate the halt. If there is no free - * request queue entry, sets only the Channel Disable bit of the HCCHARn - * register to flush requests for this channel. In the latter case, sets a - * flag to indicate that the host channel needs to be halted when a request - * queue slot is open. - * - * In DMA mode, always sets the Channel Enable and Channel Disable bits of the - * HCCHARn register. The controller ensures there is space in the request - * queue before submitting the halt request. - * - * Some time may elapse before the core flushes any posted requests for this - * host channel and halts. The Channel Halted interrupt handler completes the - * deactivation of the host channel. - * - * @param _core_if Controller register interface. - * @param _hc Host channel to halt. - * @param _halt_status Reason for halting the channel. - */ -void dwc_otg_hc_halt(dwc_otg_core_if_t *_core_if, - dwc_hc_t *_hc, - dwc_otg_halt_status_e _halt_status) -{ - gnptxsts_data_t nptxsts; - hptxsts_data_t hptxsts; - hcchar_data_t hcchar; - dwc_otg_hc_regs_t *hc_regs; - dwc_otg_core_global_regs_t *global_regs; - dwc_otg_host_global_regs_t *host_global_regs; - - hc_regs = _core_if->host_if->hc_regs[_hc->hc_num]; - global_regs = _core_if->core_global_regs; - host_global_regs = _core_if->host_if->host_global_regs; - - WARN_ON(_halt_status == DWC_OTG_HC_XFER_NO_HALT_STATUS); - - if (_halt_status == DWC_OTG_HC_XFER_URB_DEQUEUE || - _halt_status == DWC_OTG_HC_XFER_AHB_ERR) { - /* - * Disable all channel interrupts except Ch Halted. The QTD - * and QH state associated with this transfer has been cleared - * (in the case of URB_DEQUEUE), so the channel needs to be - * shut down carefully to prevent crashes. - */ - hcintmsk_data_t hcintmsk; - hcintmsk.d32 = 0; - hcintmsk.b.chhltd = 1; - dwc_write_reg32(&hc_regs->hcintmsk, hcintmsk.d32); - - /* - * Make sure no other interrupts besides halt are currently - * pending. Handling another interrupt could cause a crash due - * to the QTD and QH state. - */ - dwc_write_reg32(&hc_regs->hcint, ~hcintmsk.d32); - - /* - * Make sure the halt status is set to URB_DEQUEUE or AHB_ERR - * even if the channel was already halted for some other - * reason. - */ - _hc->halt_status = _halt_status; - - hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar); - if (hcchar.b.chen == 0) { - /* - * The channel is either already halted or it hasn't - * started yet. In DMA mode, the transfer may halt if - * it finishes normally or a condition occurs that - * requires driver intervention. Don't want to halt - * the channel again. In either Slave or DMA mode, - * it's possible that the transfer has been assigned - * to a channel, but not started yet when an URB is - * dequeued. Don't want to halt a channel that hasn't - * started yet. - */ - return; - } - } - - if (_hc->halt_pending) { - /* - * A halt has already been issued for this channel. This might - * happen when a transfer is aborted by a higher level in - * the stack. - */ -#ifdef DEBUG - DWC_PRINT("*** %s: Channel %d, _hc->halt_pending already set ***\n", - __func__, _hc->hc_num); - -/* dwc_otg_dump_global_registers(_core_if); */ -/* dwc_otg_dump_host_registers(_core_if); */ -#endif - return; - } - - hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar); - hcchar.b.chen = 1; - hcchar.b.chdis = 1; - - if (!_core_if->dma_enable) { - /* Check for space in the request queue to issue the halt. */ - if (_hc->ep_type == DWC_OTG_EP_TYPE_CONTROL || - _hc->ep_type == DWC_OTG_EP_TYPE_BULK) { - nptxsts.d32 = dwc_read_reg32(&global_regs->gnptxsts); - if (nptxsts.b.nptxqspcavail == 0) { - hcchar.b.chen = 0; - } - } else { - hptxsts.d32 = dwc_read_reg32(&host_global_regs->hptxsts); - if ((hptxsts.b.ptxqspcavail == 0) || (_core_if->queuing_high_bandwidth)) { - hcchar.b.chen = 0; - } - } - } - - dwc_write_reg32(&hc_regs->hcchar, hcchar.d32); - - _hc->halt_status = _halt_status; - - if (hcchar.b.chen) { - _hc->halt_pending = 1; - _hc->halt_on_queue = 0; - } else { - _hc->halt_on_queue = 1; - } - - DWC_DEBUGPL(DBG_HCDV, "%s: Channel %d\n", __func__, _hc->hc_num); - DWC_DEBUGPL(DBG_HCDV, " hcchar: 0x%08x\n", hcchar.d32); - DWC_DEBUGPL(DBG_HCDV, " halt_pending: %d\n", _hc->halt_pending); - DWC_DEBUGPL(DBG_HCDV, " halt_on_queue: %d\n", _hc->halt_on_queue); - DWC_DEBUGPL(DBG_HCDV, " halt_status: %d\n", _hc->halt_status); - - return; -} - -/** - * Clears the transfer state for a host channel. This function is normally - * called after a transfer is done and the host channel is being released. - * - * @param _core_if Programming view of DWC_otg controller. - * @param _hc Identifies the host channel to clean up. - */ -void dwc_otg_hc_cleanup(dwc_otg_core_if_t *_core_if, dwc_hc_t *_hc) -{ - dwc_otg_hc_regs_t *hc_regs; - - _hc->xfer_started = 0; - - /* - * Clear channel interrupt enables and any unhandled channel interrupt - * conditions. - */ - hc_regs = _core_if->host_if->hc_regs[_hc->hc_num]; - dwc_write_reg32(&hc_regs->hcintmsk, 0); - dwc_write_reg32(&hc_regs->hcint, 0xFFFFFFFF); - -#ifdef DEBUG - del_timer(&_core_if->hc_xfer_timer[_hc->hc_num]); - { - hcchar_data_t hcchar; - hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar); - if (hcchar.b.chdis) { - DWC_WARN("%s: chdis set, channel %d, hcchar 0x%08x\n", - __func__, _hc->hc_num, hcchar.d32); - } - } -#endif -} - -/** - * Sets the channel property that indicates in which frame a periodic transfer - * should occur. This is always set to the _next_ frame. This function has no - * effect on non-periodic transfers. - * - * @param _core_if Programming view of DWC_otg controller. - * @param _hc Identifies the host channel to set up and its properties. - * @param _hcchar Current value of the HCCHAR register for the specified host - * channel. - */ -static inline void hc_set_even_odd_frame(dwc_otg_core_if_t *_core_if, - dwc_hc_t *_hc, - hcchar_data_t *_hcchar) -{ - if (_hc->ep_type == DWC_OTG_EP_TYPE_INTR || - _hc->ep_type == DWC_OTG_EP_TYPE_ISOC) { - hfnum_data_t hfnum; - hfnum.d32 = dwc_read_reg32(&_core_if->host_if->host_global_regs->hfnum); - /* 1 if _next_ frame is odd, 0 if it's even */ - _hcchar->b.oddfrm = (hfnum.b.frnum & 0x1) ? 0 : 1; -#ifdef DEBUG - if (_hc->ep_type == DWC_OTG_EP_TYPE_INTR && _hc->do_split && !_hc->complete_split) { - switch (hfnum.b.frnum & 0x7) { - case 7: - _core_if->hfnum_7_samples++; - _core_if->hfnum_7_frrem_accum += hfnum.b.frrem; - break; - case 0: - _core_if->hfnum_0_samples++; - _core_if->hfnum_0_frrem_accum += hfnum.b.frrem; - break; - default: - _core_if->hfnum_other_samples++; - _core_if->hfnum_other_frrem_accum += hfnum.b.frrem; - break; - } - } -#endif - } -} - -#ifdef DEBUG -static void hc_xfer_timeout(unsigned long _ptr) -{ - hc_xfer_info_t *xfer_info = (hc_xfer_info_t *)_ptr; - int hc_num = xfer_info->hc->hc_num; - DWC_WARN("%s: timeout on channel %d\n", __func__, hc_num); - DWC_WARN(" start_hcchar_val 0x%08x\n", xfer_info->core_if->start_hcchar_val[hc_num]); -} -#endif - -/* - * This function does the setup for a data transfer for a host channel and - * starts the transfer. May be called in either Slave mode or DMA mode. In - * Slave mode, the caller must ensure that there is sufficient space in the - * request queue and Tx Data FIFO. - * - * For an OUT transfer in Slave mode, it loads a data packet into the - * appropriate FIFO. If necessary, additional data packets will be loaded in - * the Host ISR. - * - * For an IN transfer in Slave mode, a data packet is requested. The data - * packets are unloaded from the Rx FIFO in the Host ISR. If necessary, - * additional data packets are requested in the Host ISR. - * - * For a PING transfer in Slave mode, the Do Ping bit is set in the HCTSIZ - * register along with a packet count of 1 and the channel is enabled. This - * causes a single PING transaction to occur. Other fields in HCTSIZ are - * simply set to 0 since no data transfer occurs in this case. - * - * For a PING transfer in DMA mode, the HCTSIZ register is initialized with - * all the information required to perform the subsequent data transfer. In - * addition, the Do Ping bit is set in the HCTSIZ register. In this case, the - * controller performs the entire PING protocol, then starts the data - * transfer. - * - * @param _core_if Programming view of DWC_otg controller. - * @param _hc Information needed to initialize the host channel. The xfer_len - * value may be reduced to accommodate the max widths of the XferSize and - * PktCnt fields in the HCTSIZn register. The multi_count value may be changed - * to reflect the final xfer_len value. - */ -void dwc_otg_hc_start_transfer(dwc_otg_core_if_t *_core_if, dwc_hc_t *_hc) -{ - hcchar_data_t hcchar; - hctsiz_data_t hctsiz; - uint16_t num_packets; - uint32_t max_hc_xfer_size = _core_if->core_params->max_transfer_size; - uint16_t max_hc_pkt_count = _core_if->core_params->max_packet_count; - dwc_otg_hc_regs_t *hc_regs = _core_if->host_if->hc_regs[_hc->hc_num]; - - hctsiz.d32 = 0; - - if (_hc->do_ping) { - if (!_core_if->dma_enable) { - dwc_otg_hc_do_ping(_core_if, _hc); - _hc->xfer_started = 1; - return; - } else { - hctsiz.b.dopng = 1; - } - } - - if (_hc->do_split) { - num_packets = 1; - - if (_hc->complete_split && !_hc->ep_is_in) { - /* For CSPLIT OUT Transfer, set the size to 0 so the - * core doesn't expect any data written to the FIFO */ - _hc->xfer_len = 0; - } else if (_hc->ep_is_in || (_hc->xfer_len > _hc->max_packet)) { - _hc->xfer_len = _hc->max_packet; - } else if (!_hc->ep_is_in && (_hc->xfer_len > 188)) { - _hc->xfer_len = 188; - } - - hctsiz.b.xfersize = _hc->xfer_len; - } else { - /* - * Ensure that the transfer length and packet count will fit - * in the widths allocated for them in the HCTSIZn register. - */ - if (_hc->ep_type == DWC_OTG_EP_TYPE_INTR || - _hc->ep_type == DWC_OTG_EP_TYPE_ISOC) { - /* - * Make sure the transfer size is no larger than one - * (micro)frame's worth of data. (A check was done - * when the periodic transfer was accepted to ensure - * that a (micro)frame's worth of data can be - * programmed into a channel.) - */ - uint32_t max_periodic_len = _hc->multi_count * _hc->max_packet; - if (_hc->xfer_len > max_periodic_len) { - _hc->xfer_len = max_periodic_len; - } else { - } - } else if (_hc->xfer_len > max_hc_xfer_size) { - /* Make sure that xfer_len is a multiple of max packet size. */ - _hc->xfer_len = max_hc_xfer_size - _hc->max_packet + 1; - } - - if (_hc->xfer_len > 0) { - num_packets = (_hc->xfer_len + _hc->max_packet - 1) / _hc->max_packet; - if (num_packets > max_hc_pkt_count) { - num_packets = max_hc_pkt_count; - _hc->xfer_len = num_packets * _hc->max_packet; - } - } else { - /* Need 1 packet for transfer length of 0. */ - num_packets = 1; - } - - if (_hc->ep_is_in) { - /* Always program an integral # of max packets for IN transfers. */ - _hc->xfer_len = num_packets * _hc->max_packet; - } - - if (_hc->ep_type == DWC_OTG_EP_TYPE_INTR || - _hc->ep_type == DWC_OTG_EP_TYPE_ISOC) { - /* - * Make sure that the multi_count field matches the - * actual transfer length. - */ - _hc->multi_count = num_packets; - - } - - if (_hc->ep_type == DWC_OTG_EP_TYPE_ISOC) { - /* Set up the initial PID for the transfer. */ - if (_hc->speed == DWC_OTG_EP_SPEED_HIGH) { - if (_hc->ep_is_in) { - if (_hc->multi_count == 1) { - _hc->data_pid_start = DWC_OTG_HC_PID_DATA0; - } else if (_hc->multi_count == 2) { - _hc->data_pid_start = DWC_OTG_HC_PID_DATA1; - } else { - _hc->data_pid_start = DWC_OTG_HC_PID_DATA2; - } - } else { - if (_hc->multi_count == 1) { - _hc->data_pid_start = DWC_OTG_HC_PID_DATA0; - } else { - _hc->data_pid_start = DWC_OTG_HC_PID_MDATA; - } - } - } else { - _hc->data_pid_start = DWC_OTG_HC_PID_DATA0; - } - } - - hctsiz.b.xfersize = _hc->xfer_len; - } - - _hc->start_pkt_count = num_packets; - hctsiz.b.pktcnt = num_packets; - hctsiz.b.pid = _hc->data_pid_start; - dwc_write_reg32(&hc_regs->hctsiz, hctsiz.d32); - - DWC_DEBUGPL(DBG_HCDV, "%s: Channel %d\n", __func__, _hc->hc_num); - DWC_DEBUGPL(DBG_HCDV, " Xfer Size: %d\n", hctsiz.b.xfersize); - DWC_DEBUGPL(DBG_HCDV, " Num Pkts: %d\n", hctsiz.b.pktcnt); - DWC_DEBUGPL(DBG_HCDV, " Start PID: %d\n", hctsiz.b.pid); - - if (_core_if->dma_enable) { -#ifdef DEBUG -if(((uint32_t)_hc->xfer_buff)%4) -printk("dwc_otg_hc_start_transfer _hc->xfer_buff not 4 byte alignment\n"); -#endif - dwc_write_reg32(&hc_regs->hcdma, (uint32_t)_hc->xfer_buff); - } - - /* Start the split */ - if (_hc->do_split) { - hcsplt_data_t hcsplt; - hcsplt.d32 = dwc_read_reg32 (&hc_regs->hcsplt); - hcsplt.b.spltena = 1; - dwc_write_reg32(&hc_regs->hcsplt, hcsplt.d32); - } - - hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar); - hcchar.b.multicnt = _hc->multi_count; - hc_set_even_odd_frame(_core_if, _hc, &hcchar); -#ifdef DEBUG - _core_if->start_hcchar_val[_hc->hc_num] = hcchar.d32; - if (hcchar.b.chdis) { - DWC_WARN("%s: chdis set, channel %d, hcchar 0x%08x\n", - __func__, _hc->hc_num, hcchar.d32); - } -#endif - - /* Set host channel enable after all other setup is complete. */ - hcchar.b.chen = 1; - hcchar.b.chdis = 0; - dwc_write_reg32(&hc_regs->hcchar, hcchar.d32); - - _hc->xfer_started = 1; - _hc->requests++; - - if (!_core_if->dma_enable && !_hc->ep_is_in && _hc->xfer_len > 0) { - /* Load OUT packet into the appropriate Tx FIFO. */ - dwc_otg_hc_write_packet(_core_if, _hc); - } - -#ifdef DEBUG - /* Start a timer for this transfer. */ - _core_if->hc_xfer_timer[_hc->hc_num].function = hc_xfer_timeout; - _core_if->hc_xfer_info[_hc->hc_num].core_if = _core_if; - _core_if->hc_xfer_info[_hc->hc_num].hc = _hc; - _core_if->hc_xfer_timer[_hc->hc_num].data = (unsigned long)(&_core_if->hc_xfer_info[_hc->hc_num]); - _core_if->hc_xfer_timer[_hc->hc_num].expires = jiffies + (HZ*10); - add_timer(&_core_if->hc_xfer_timer[_hc->hc_num]); -#endif -} - -/** - * This function continues a data transfer that was started by previous call - * to <code>dwc_otg_hc_start_transfer</code>. The caller must ensure there is - * sufficient space in the request queue and Tx Data FIFO. This function - * should only be called in Slave mode. In DMA mode, the controller acts - * autonomously to complete transfers programmed to a host channel. - * - * For an OUT transfer, a new data packet is loaded into the appropriate FIFO - * if there is any data remaining to be queued. For an IN transfer, another - * data packet is always requested. For the SETUP phase of a control transfer, - * this function does nothing. - * - * @return 1 if a new request is queued, 0 if no more requests are required - * for this transfer. - */ -int dwc_otg_hc_continue_transfer(dwc_otg_core_if_t *_core_if, dwc_hc_t *_hc) -{ - DWC_DEBUGPL(DBG_HCDV, "%s: Channel %d\n", __func__, _hc->hc_num); - - if (_hc->do_split) { - /* SPLITs always queue just once per channel */ - return 0; - } else if (_hc->data_pid_start == DWC_OTG_HC_PID_SETUP) { - /* SETUPs are queued only once since they can't be NAKed. */ - return 0; - } else if (_hc->ep_is_in) { - /* - * Always queue another request for other IN transfers. If - * back-to-back INs are issued and NAKs are received for both, - * the driver may still be processing the first NAK when the - * second NAK is received. When the interrupt handler clears - * the NAK interrupt for the first NAK, the second NAK will - * not be seen. So we can't depend on the NAK interrupt - * handler to requeue a NAKed request. Instead, IN requests - * are issued each time this function is called. When the - * transfer completes, the extra requests for the channel will - * be flushed. - */ - hcchar_data_t hcchar; - dwc_otg_hc_regs_t *hc_regs = _core_if->host_if->hc_regs[_hc->hc_num]; - - hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar); - hc_set_even_odd_frame(_core_if, _hc, &hcchar); - hcchar.b.chen = 1; - hcchar.b.chdis = 0; - DWC_DEBUGPL(DBG_HCDV, " IN xfer: hcchar = 0x%08x\n", hcchar.d32); - dwc_write_reg32(&hc_regs->hcchar, hcchar.d32); - _hc->requests++; - return 1; - } else { - /* OUT transfers. */ - if (_hc->xfer_count < _hc->xfer_len) { - if (_hc->ep_type == DWC_OTG_EP_TYPE_INTR || - _hc->ep_type == DWC_OTG_EP_TYPE_ISOC) { - hcchar_data_t hcchar; - dwc_otg_hc_regs_t *hc_regs; - hc_regs = _core_if->host_if->hc_regs[_hc->hc_num]; - hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar); - hc_set_even_odd_frame(_core_if, _hc, &hcchar); - } - - /* Load OUT packet into the appropriate Tx FIFO. */ - dwc_otg_hc_write_packet(_core_if, _hc); - _hc->requests++; - return 1; - } else { - return 0; - } - } -} - -/** - * Starts a PING transfer. This function should only be called in Slave mode. - * The Do Ping bit is set in the HCTSIZ register, then the channel is enabled. - */ -void dwc_otg_hc_do_ping(dwc_otg_core_if_t *_core_if, dwc_hc_t *_hc) -{ - hcchar_data_t hcchar; - hctsiz_data_t hctsiz; - dwc_otg_hc_regs_t *hc_regs = _core_if->host_if->hc_regs[_hc->hc_num]; - - DWC_DEBUGPL(DBG_HCDV, "%s: Channel %d\n", __func__, _hc->hc_num); - - hctsiz.d32 = 0; - hctsiz.b.dopng = 1; - hctsiz.b.pktcnt = 1; - dwc_write_reg32(&hc_regs->hctsiz, hctsiz.d32); - - hcchar.d32 = dwc_read_reg32(&hc_regs->hcchar); - hcchar.b.chen = 1; - hcchar.b.chdis = 0; - dwc_write_reg32(&hc_regs->hcchar, hcchar.d32); -} - -/* - * This function writes a packet into the Tx FIFO associated with the Host - * Channel. For a channel associated with a non-periodic EP, the non-periodic - * Tx FIFO is written. For a channel associated with a periodic EP, the - * periodic Tx FIFO is written. This function should only be called in Slave - * mode. - * - * Upon return the xfer_buff and xfer_count fields in _hc are incremented by - * then number of bytes written to the Tx FIFO. - */ -void dwc_otg_hc_write_packet(dwc_otg_core_if_t *_core_if, dwc_hc_t *_hc) -{ - uint32_t i; - uint32_t remaining_count; - uint32_t byte_count; - uint32_t dword_count; - - uint32_t *data_buff = (uint32_t *)(_hc->xfer_buff); - uint32_t *data_fifo = _core_if->data_fifo[_hc->hc_num]; - - remaining_count = _hc->xfer_len - _hc->xfer_count; - if (remaining_count > _hc->max_packet) { - byte_count = _hc->max_packet; - } else { - byte_count = remaining_count; - } - - dword_count = (byte_count + 3) / 4; - - if ((((unsigned long)data_buff) & 0x3) == 0) { - /* xfer_buff is DWORD aligned. */ - for (i = 0; i < dword_count; i++, data_buff++) { - dwc_write_reg32(data_fifo, *data_buff); - } - } else { - /* xfer_buff is not DWORD aligned. */ - for (i = 0; i < dword_count; i++, data_buff++) { - dwc_write_reg32(data_fifo, get_unaligned(data_buff)); - } - } - - _hc->xfer_count += byte_count; - _hc->xfer_buff += byte_count; -} - -/** - * Gets the current USB frame number. This is the frame number from the last - * SOF packet. - */ -uint32_t dwc_otg_get_frame_number(dwc_otg_core_if_t *_core_if) -{ - dsts_data_t dsts; - dsts.d32 = dwc_read_reg32(&_core_if->dev_if->dev_global_regs->dsts); - - /* read current frame/microfreme number from DSTS register */ - return dsts.b.soffn; -} - -/** - * This function reads a setup packet from the Rx FIFO into the destination - * buffer. This function is called from the Rx Status Queue Level (RxStsQLvl) - * Interrupt routine when a SETUP packet has been received in Slave mode. - * - * @param _core_if Programming view of DWC_otg controller. - * @param _dest Destination buffer for packet data. - */ -void dwc_otg_read_setup_packet(dwc_otg_core_if_t *_core_if, uint32_t *_dest) -{ - /* Get the 8 bytes of a setup transaction data */ - - /* Pop 2 DWORDS off the receive data FIFO into memory */ - _dest[0] = dwc_read_reg32(_core_if->data_fifo[0]); - _dest[1] = dwc_read_reg32(_core_if->data_fifo[0]); - //_dest[0] = dwc_read_datafifo32(_core_if->data_fifo[0]); - //_dest[1] = dwc_read_datafifo32(_core_if->data_fifo[0]); -} - - -/** - * This function enables EP0 OUT to receive SETUP packets and configures EP0 - * IN for transmitting packets. It is normally called when the - * "Enumeration Done" interrupt occurs. - * - * @param _core_if Programming view of DWC_otg controller. - * @param _ep The EP0 data. - */ -void dwc_otg_ep0_activate(dwc_otg_core_if_t *_core_if, dwc_ep_t *_ep) -{ - dwc_otg_dev_if_t *dev_if = _core_if->dev_if; - dsts_data_t dsts; - depctl_data_t diepctl; - depctl_data_t doepctl; - dctl_data_t dctl ={.d32=0}; - - /* Read the Device Status and Endpoint 0 Control registers */ - dsts.d32 = dwc_read_reg32(&dev_if->dev_global_regs->dsts); - diepctl.d32 = dwc_read_reg32(&dev_if->in_ep_regs[0]->diepctl); - doepctl.d32 = dwc_read_reg32(&dev_if->out_ep_regs[0]->doepctl); - - /* Set the MPS of the IN EP based on the enumeration speed */ - switch (dsts.b.enumspd) { - case DWC_DSTS_ENUMSPD_HS_PHY_30MHZ_OR_60MHZ: - case DWC_DSTS_ENUMSPD_FS_PHY_30MHZ_OR_60MHZ: - case DWC_DSTS_ENUMSPD_FS_PHY_48MHZ: - diepctl.b.mps = DWC_DEP0CTL_MPS_64; - break; - case DWC_DSTS_ENUMSPD_LS_PHY_6MHZ: - diepctl.b.mps = DWC_DEP0CTL_MPS_8; - break; - } - - dwc_write_reg32(&dev_if->in_ep_regs[0]->diepctl, diepctl.d32); - - /* Enable OUT EP for receive */ - doepctl.b.epena = 1; - dwc_write_reg32(&dev_if->out_ep_regs[0]->doepctl, doepctl.d32); - -#ifdef VERBOSE - DWC_DEBUGPL(DBG_PCDV,"doepctl0=%0x\n", - dwc_read_reg32(&dev_if->out_ep_regs[0]->doepctl)); - DWC_DEBUGPL(DBG_PCDV,"diepctl0=%0x\n", - dwc_read_reg32(&dev_if->in_ep_regs[0]->diepctl)); -#endif - dctl.b.cgnpinnak = 1; - dwc_modify_reg32(&dev_if->dev_global_regs->dctl, dctl.d32, dctl.d32); - DWC_DEBUGPL(DBG_PCDV,"dctl=%0x\n", - dwc_read_reg32(&dev_if->dev_global_regs->dctl)); -} - -/** - * This function activates an EP. The Device EP control register for - * the EP is configured as defined in the ep structure. Note: This - * function is not used for EP0. - * - * @param _core_if Programming view of DWC_otg controller. - * @param _ep The EP to activate. - */ -void dwc_otg_ep_activate(dwc_otg_core_if_t *_core_if, dwc_ep_t *_ep) -{ - dwc_otg_dev_if_t *dev_if = _core_if->dev_if; - depctl_data_t depctl; - volatile uint32_t *addr; - daint_data_t daintmsk = {.d32=0}; - - DWC_DEBUGPL(DBG_PCDV, "%s() EP%d-%s\n", __func__, _ep->num, - (_ep->is_in?"IN":"OUT")); - - /* Read DEPCTLn register */ - if (_ep->is_in == 1) { - addr = &dev_if->in_ep_regs[_ep->num]->diepctl; - daintmsk.ep.in = 1<<_ep->num; - } else { - addr = &dev_if->out_ep_regs[_ep->num]->doepctl; - daintmsk.ep.out = 1<<_ep->num; - } - - /* If the EP is already active don't change the EP Control - * register. */ - depctl.d32 = dwc_read_reg32(addr); - if (!depctl.b.usbactep) { - depctl.b.mps = _ep->maxpacket; - depctl.b.eptype = _ep->type; - depctl.b.txfnum = _ep->tx_fifo_num; - - if (_ep->type == DWC_OTG_EP_TYPE_ISOC) { - depctl.b.setd0pid = 1; // ??? - } else { - depctl.b.setd0pid = 1; - } - depctl.b.usbactep = 1; - - dwc_write_reg32(addr, depctl.d32); - DWC_DEBUGPL(DBG_PCDV,"DEPCTL=%08x\n", dwc_read_reg32(addr)); - } - - - /* Enable the Interrupt for this EP */ - dwc_modify_reg32(&dev_if->dev_global_regs->daintmsk, - 0, daintmsk.d32); - DWC_DEBUGPL(DBG_PCDV,"DAINTMSK=%0x\n", - dwc_read_reg32(&dev_if->dev_global_regs->daintmsk)); - _ep->stall_clear_flag = 0; - return; -} - -/** - * This function deactivates an EP. This is done by clearing the USB Active - * EP bit in the Device EP control register. Note: This function is not used - * for EP0. EP0 cannot be deactivated. - * - * @param _core_if Programming view of DWC_otg controller. - * @param _ep The EP to deactivate. - */ -void dwc_otg_ep_deactivate(dwc_otg_core_if_t *_core_if, dwc_ep_t *_ep) -{ - depctl_data_t depctl ={.d32 = 0}; - volatile uint32_t *addr; - daint_data_t daintmsk = {.d32=0}; - - /* Read DEPCTLn register */ - if (_ep->is_in == 1) { - addr = &_core_if->dev_if->in_ep_regs[_ep->num]->diepctl; - daintmsk.ep.in = 1<<_ep->num; - } else { - addr = &_core_if->dev_if->out_ep_regs[_ep->num]->doepctl; - daintmsk.ep.out = 1<<_ep->num; - } - - depctl.b.usbactep = 0; - dwc_write_reg32(addr, depctl.d32); - - /* Disable the Interrupt for this EP */ - dwc_modify_reg32(&_core_if->dev_if->dev_global_regs->daintmsk, - daintmsk.d32, 0); - - return; -} - -/** - * This function does the setup for a data transfer for an EP and - * starts the transfer. For an IN transfer, the packets will be - * loaded into the appropriate Tx FIFO in the ISR. For OUT transfers, - * the packets are unloaded from the Rx FIFO in the ISR. the ISR. - * - * @param _core_if Programming view of DWC_otg controller. - * @param _ep The EP to start the transfer on. - */ -void dwc_otg_ep_start_transfer(dwc_otg_core_if_t *_core_if, dwc_ep_t *_ep) -{ - /** @todo Refactor this funciton to check the transfer size - * count value does not execed the number bits in the Transfer - * count register. */ - depctl_data_t depctl; - deptsiz_data_t deptsiz; - gintmsk_data_t intr_mask = { .d32 = 0}; - -#ifdef CHECK_PACKET_COUNTER_WIDTH - const uint32_t MAX_XFER_SIZE = - _core_if->core_params->max_transfer_size; - const uint32_t MAX_PKT_COUNT = - _core_if->core_params->max_packet_count; - uint32_t num_packets; - uint32_t transfer_len; - dwc_otg_dev_out_ep_regs_t *out_regs = - _core_if->dev_if->out_ep_regs[_ep->num]; - dwc_otg_dev_in_ep_regs_t *in_regs = - _core_if->dev_if->in_ep_regs[_ep->num]; - gnptxsts_data_t txstatus; - - int lvl = SET_DEBUG_LEVEL(DBG_PCD); - - - DWC_DEBUGPL(DBG_PCD, "ep%d-%s xfer_len=%d xfer_cnt=%d " - "xfer_buff=%p start_xfer_buff=%p\n", - _ep->num, (_ep->is_in?"IN":"OUT"), _ep->xfer_len, - _ep->xfer_count, _ep->xfer_buff, _ep->start_xfer_buff); - - transfer_len = _ep->xfer_len - _ep->xfer_count; - if (transfer_len > MAX_XFER_SIZE) { - transfer_len = MAX_XFER_SIZE; - } - if (transfer_len == 0) { - num_packets = 1; - /* OUT EP to recieve Zero-length packet set transfer - * size to maxpacket size. */ - if (!_ep->is_in) { - transfer_len = _ep->maxpacket; - } - } else { - num_packets = - (transfer_len + _ep->maxpacket - 1) / _ep->maxpacket; - if (num_packets > MAX_PKT_COUNT) { - num_packets = MAX_PKT_COUNT; - } - } - DWC_DEBUGPL(DBG_PCD, "transfer_len=%d #pckt=%d\n", transfer_len, - num_packets); - - deptsiz.b.xfersize = transfer_len; - deptsiz.b.pktcnt = num_packets; - - /* IN endpoint */ - if (_ep->is_in == 1) { - depctl.d32 = dwc_read_reg32(&in_regs->diepctl); - } else {/* OUT endpoint */ - depctl.d32 = dwc_read_reg32(&out_regs->doepctl); - } - - /* EP enable, IN data in FIFO */ - depctl.b.cnak = 1; - depctl.b.epena = 1; - /* IN endpoint */ - if (_ep->is_in == 1) { - txstatus.d32 = - dwc_read_reg32(&_core_if->core_global_regs->gnptxsts); - if (txstatus.b.nptxqspcavail == 0) { - DWC_DEBUGPL(DBG_ANY, "TX Queue Full (0x%0x)\n", - txstatus.d32); - return; - } - dwc_write_reg32(&in_regs->dieptsiz, deptsiz.d32); - dwc_write_reg32(&in_regs->diepctl, depctl.d32); - /** - * Enable the Non-Periodic Tx FIFO empty interrupt, the - * data will be written into the fifo by the ISR. - */ - if (_core_if->dma_enable) { - dwc_write_reg32(&in_regs->diepdma, (uint32_t) _ep->xfer_buff); - } else { - if (_core_if->en_multiple_tx_fifo == 0) { - intr_mask.b.nptxfempty = 1; - dwc_modify_reg32( &_core_if->core_global_regs->gintsts, - intr_mask.d32, 0); - dwc_modify_reg32( &_core_if->core_global_regs->gintmsk, - intr_mask.d32, intr_mask.d32); - } else { - /* Enable the Tx FIFO Empty Interrupt for this EP */ - if (_ep->xfer_len > 0 && - _ep->type != DWC_OTG_EP_TYPE_ISOC) { - uint32_t fifoemptymsk = 0; - fifoemptymsk = (0x1 << _ep->num); - dwc_modify_reg32(&_core_if->dev_if->dev_global_regs-> - dtknqr4_fifoemptymsk,0, fifoemptymsk); - } - } - } - } else { /* OUT endpoint */ - dwc_write_reg32(&out_regs->doeptsiz, deptsiz.d32); - dwc_write_reg32(&out_regs->doepctl, depctl.d32); - if (_core_if->dma_enable) { - dwc_write_reg32(&out_regs->doepdma,(uint32_t) _ep->xfer_buff); - } - } - DWC_DEBUGPL(DBG_PCD, "DOEPCTL=%08x DOEPTSIZ=%08x\n", - dwc_read_reg32(&out_regs->doepctl), - dwc_read_reg32(&out_regs->doeptsiz)); - DWC_DEBUGPL(DBG_PCD, "DAINTMSK=%08x GINTMSK=%08x\n", - dwc_read_reg32(&_core_if->dev_if->dev_global_regs->daintmsk), - dwc_read_reg32(&_core_if->core_global_regs->gintmsk)); - - SET_DEBUG_LEVEL(lvl); -#endif - DWC_DEBUGPL((DBG_PCDV | DBG_CILV), "%s()\n", __func__); - - DWC_DEBUGPL(DBG_PCD, "ep%d-%s xfer_len=%d xfer_cnt=%d " - "xfer_buff=%p start_xfer_buff=%p\n", - _ep->num, (_ep->is_in?"IN":"OUT"), _ep->xfer_len, - _ep->xfer_count, _ep->xfer_buff, _ep->start_xfer_buff); - - /* IN endpoint */ - if (_ep->is_in == 1) { - dwc_otg_dev_in_ep_regs_t * in_regs = _core_if->dev_if->in_ep_regs[_ep->num]; - gnptxsts_data_t gtxstatus; - gtxstatus.d32 = dwc_read_reg32(&_core_if->core_global_regs->gnptxsts); - if (_core_if->en_multiple_tx_fifo == 0 && - gtxstatus.b.nptxqspcavail == 0) { -#ifdef DEBUG - DWC_PRINT("TX Queue Full (0x%0x)\n", gtxstatus.d32); -#endif - //return; - MDELAY(100); //james - } - - depctl.d32 = dwc_read_reg32(&(in_regs->diepctl)); - deptsiz.d32 = dwc_read_reg32(&(in_regs->dieptsiz)); - - /* Zero Length Packet? */ - if (_ep->xfer_len == 0) { - deptsiz.b.xfersize = 0; - deptsiz.b.pktcnt = 1; - } else { - - /* Program the transfer size and packet count - * as follows: xfersize = N * maxpacket + - * short_packet pktcnt = N + (short_packet - * exist ? 1 : 0) - */ - deptsiz.b.xfersize = _ep->xfer_len; - deptsiz.b.pktcnt = (_ep->xfer_len - 1 + _ep->maxpacket) / _ep->maxpacket; - } - - dwc_write_reg32(&in_regs->dieptsiz, deptsiz.d32); - - /* Write the DMA register */ - if (_core_if->dma_enable) { -#if 1 // winder - dma_cache_wback_inv((unsigned long) _ep->xfer_buff, _ep->xfer_len); // winder - dwc_write_reg32 (&(in_regs->diepdma), - CPHYSADDR((uint32_t)_ep->xfer_buff)); // winder -#else - dwc_write_reg32 (&(in_regs->diepdma), - (uint32_t)_ep->dma_addr); -#endif - } else { - if (_ep->type != DWC_OTG_EP_TYPE_ISOC) { - /** - * Enable the Non-Periodic Tx FIFO empty interrupt, - * or the Tx FIFO epmty interrupt in dedicated Tx FIFO mode, - * the data will be written into the fifo by the ISR. - */ - if (_core_if->en_multiple_tx_fifo == 0) { - intr_mask.b.nptxfempty = 1; - dwc_modify_reg32( &_core_if->core_global_regs->gintsts, - intr_mask.d32, 0); - dwc_modify_reg32( &_core_if->core_global_regs->gintmsk, - intr_mask.d32, intr_mask.d32); - } else { - /* Enable the Tx FIFO Empty Interrupt for this EP */ - if (_ep->xfer_len > 0) { - uint32_t fifoemptymsk = 0; - fifoemptymsk = 1 << _ep->num; - dwc_modify_reg32(&_core_if->dev_if->dev_global_regs-> - dtknqr4_fifoemptymsk,0,fifoemptymsk); - } - } - } - } - - /* EP enable, IN data in FIFO */ - depctl.b.cnak = 1; - depctl.b.epena = 1; - dwc_write_reg32(&in_regs->diepctl, depctl.d32); - - if (_core_if->dma_enable) { - depctl.d32 = dwc_read_reg32 (&_core_if->dev_if->in_ep_regs[0]->diepctl); - depctl.b.nextep = _ep->num; - dwc_write_reg32 (&_core_if->dev_if->in_ep_regs[0]->diepctl, depctl.d32); - - } - } else { - /* OUT endpoint */ - dwc_otg_dev_out_ep_regs_t * out_regs = _core_if->dev_if->out_ep_regs[_ep->num]; - - depctl.d32 = dwc_read_reg32(&(out_regs->doepctl)); - deptsiz.d32 = dwc_read_reg32(&(out_regs->doeptsiz)); - - /* Program the transfer size and packet count as follows: - * - * pktcnt = N - * xfersize = N * maxpacket - */ - if (_ep->xfer_len == 0) { - /* Zero Length Packet */ - deptsiz.b.xfersize = _ep->maxpacket; - deptsiz.b.pktcnt = 1; - } else { - deptsiz.b.pktcnt = (_ep->xfer_len + (_ep->maxpacket - 1)) / _ep->maxpacket; - deptsiz.b.xfersize = deptsiz.b.pktcnt * _ep->maxpacket; - } - dwc_write_reg32(&out_regs->doeptsiz, deptsiz.d32); - - DWC_DEBUGPL(DBG_PCDV, "ep%d xfersize=%d pktcnt=%d\n", - _ep->num, deptsiz.b.xfersize, deptsiz.b.pktcnt); - - if (_core_if->dma_enable) { -#if 1 // winder - dwc_write_reg32 (&(out_regs->doepdma), - CPHYSADDR((uint32_t)_ep->xfer_buff)); // winder -#else - dwc_write_reg32 (&(out_regs->doepdma), - (uint32_t)_ep->dma_addr); -#endif - } - - if (_ep->type == DWC_OTG_EP_TYPE_ISOC) { - /** @todo NGS: dpid is read-only. Use setd0pid - * or setd1pid. */ - if (_ep->even_odd_frame) { - depctl.b.setd1pid = 1; - } else { - depctl.b.setd0pid = 1; - } - } - - /* EP enable */ - depctl.b.cnak = 1; - depctl.b.epena = 1; - - dwc_write_reg32(&out_regs->doepctl, depctl.d32); - - DWC_DEBUGPL(DBG_PCD, "DOEPCTL=%08x DOEPTSIZ=%08x\n", - dwc_read_reg32(&out_regs->doepctl), - dwc_read_reg32(&out_regs->doeptsiz)); - DWC_DEBUGPL(DBG_PCD, "DAINTMSK=%08x GINTMSK=%08x\n", - dwc_read_reg32(&_core_if->dev_if->dev_global_regs->daintmsk), - dwc_read_reg32(&_core_if->core_global_regs->gintmsk)); - } -} - - -/** - * This function does the setup for a data transfer for EP0 and starts - * the transfer. For an IN transfer, the packets will be loaded into - * the appropriate Tx FIFO in the ISR. For OUT transfers, the packets are - * unloaded from the Rx FIFO in the ISR. - * - * @param _core_if Programming view of DWC_otg controller. - * @param _ep The EP0 data. - */ -void dwc_otg_ep0_start_transfer(dwc_otg_core_if_t *_core_if, dwc_ep_t *_ep) -{ - volatile depctl_data_t depctl; - volatile deptsiz0_data_t deptsiz; - gintmsk_data_t intr_mask = { .d32 = 0}; - - DWC_DEBUGPL(DBG_PCD, "ep%d-%s xfer_len=%d xfer_cnt=%d " - "xfer_buff=%p start_xfer_buff=%p total_len=%d\n", - _ep->num, (_ep->is_in?"IN":"OUT"), _ep->xfer_len, - _ep->xfer_count, _ep->xfer_buff, _ep->start_xfer_buff, - _ep->total_len); - _ep->total_len = _ep->xfer_len; - - /* IN endpoint */ - if (_ep->is_in == 1) { - dwc_otg_dev_in_ep_regs_t * in_regs = _core_if->dev_if->in_ep_regs[0]; - gnptxsts_data_t gtxstatus; - gtxstatus.d32 = dwc_read_reg32(&_core_if->core_global_regs->gnptxsts); - if (_core_if->en_multiple_tx_fifo == 0 && - gtxstatus.b.nptxqspcavail == 0) { -#ifdef DEBUG - deptsiz.d32 = dwc_read_reg32(&in_regs->dieptsiz); - DWC_DEBUGPL(DBG_PCD,"DIEPCTL0=%0x\n", - dwc_read_reg32(&in_regs->diepctl)); - DWC_DEBUGPL(DBG_PCD, "DIEPTSIZ0=%0x (sz=%d, pcnt=%d)\n", - deptsiz.d32, deptsiz.b.xfersize,deptsiz.b.pktcnt); - DWC_PRINT("TX Queue or FIFO Full (0x%0x)\n", gtxstatus.d32); -#endif /* */ - printk("TX Queue or FIFO Full!!!!\n"); // test-only - //return; - MDELAY(100); //james - } - - depctl.d32 = dwc_read_reg32(&in_regs->diepctl); - deptsiz.d32 = dwc_read_reg32(&in_regs->dieptsiz); - - /* Zero Length Packet? */ - if (_ep->xfer_len == 0) { - deptsiz.b.xfersize = 0; - deptsiz.b.pktcnt = 1; - } else { - /* Program the transfer size and packet count - * as follows: xfersize = N * maxpacket + - * short_packet pktcnt = N + (short_packet - * exist ? 1 : 0) - */ - if (_ep->xfer_len > _ep->maxpacket) { - _ep->xfer_len = _ep->maxpacket; - deptsiz.b.xfersize = _ep->maxpacket; - } - else { - deptsiz.b.xfersize = _ep->xfer_len; - } - deptsiz.b.pktcnt = 1; - - } - dwc_write_reg32(&in_regs->dieptsiz, deptsiz.d32); - DWC_DEBUGPL(DBG_PCDV, "IN len=%d xfersize=%d pktcnt=%d [%08x]\n", - _ep->xfer_len, deptsiz.b.xfersize,deptsiz.b.pktcnt, deptsiz.d32); - - /* Write the DMA register */ - if (_core_if->dma_enable) { - dwc_write_reg32(&(in_regs->diepdma), (uint32_t) _ep->dma_addr); - } - - /* EP enable, IN data in FIFO */ - depctl.b.cnak = 1; - depctl.b.epena = 1; - dwc_write_reg32(&in_regs->diepctl, depctl.d32); - - /** - * Enable the Non-Periodic Tx FIFO empty interrupt, the - * data will be written into the fifo by the ISR. - */ - if (!_core_if->dma_enable) { - if (_core_if->en_multiple_tx_fifo == 0) { - intr_mask.b.nptxfempty = 1; - dwc_modify_reg32(&_core_if->core_global_regs->gintsts, intr_mask.d32, 0); - dwc_modify_reg32(&_core_if->core_global_regs->gintmsk, intr_mask.d32, - intr_mask.d32); - } else { - /* Enable the Tx FIFO Empty Interrupt for this EP */ - if (_ep->xfer_len > 0) { - uint32_t fifoemptymsk = 0; - fifoemptymsk |= 1 << _ep->num; - dwc_modify_reg32(&_core_if->dev_if->dev_global_regs->dtknqr4_fifoemptymsk, - 0, fifoemptymsk); - } - - } - } - } else { - /* OUT endpoint */ - dwc_otg_dev_out_ep_regs_t * out_regs = _core_if->dev_if->out_ep_regs[_ep->num]; - - depctl.d32 = dwc_read_reg32(&out_regs->doepctl); - deptsiz.d32 = dwc_read_reg32(&out_regs->doeptsiz); - - /* Program the transfer size and packet count as follows: - * xfersize = N * (maxpacket + 4 - (maxpacket % 4)) - * pktcnt = N */ - if (_ep->xfer_len == 0) { - /* Zero Length Packet */ - deptsiz.b.xfersize = _ep->maxpacket; - deptsiz.b.pktcnt = 1; - } else { - deptsiz.b.pktcnt = (_ep->xfer_len + (_ep->maxpacket - 1)) / _ep->maxpacket; - deptsiz.b.xfersize = deptsiz.b.pktcnt * _ep->maxpacket; - } - - dwc_write_reg32(&out_regs->doeptsiz, deptsiz.d32); - DWC_DEBUGPL(DBG_PCDV, "len=%d xfersize=%d pktcnt=%d\n", - _ep->xfer_len, deptsiz.b.xfersize,deptsiz.b.pktcnt); - - if (_core_if->dma_enable) { - dwc_write_reg32(&(out_regs->doepdma), (uint32_t) _ep->dma_addr); - } - - /* EP enable */ - depctl.b.cnak = 1; - depctl.b.epena = 1; - dwc_write_reg32 (&(out_regs->doepctl), depctl.d32); - } -} - -/** - * This function continues control IN transfers started by - * dwc_otg_ep0_start_transfer, when the transfer does not fit in a - * single packet. NOTE: The DIEPCTL0/DOEPCTL0 registers only have one - * bit for the packet count. - * - * @param _core_if Programming view of DWC_otg controller. - * @param _ep The EP0 data. - */ -void dwc_otg_ep0_continue_transfer(dwc_otg_core_if_t *_core_if, dwc_ep_t *_ep) -{ - depctl_data_t depctl; - deptsiz0_data_t deptsiz; - gintmsk_data_t intr_mask = { .d32 = 0}; - - if (_ep->is_in == 1) { - dwc_otg_dev_in_ep_regs_t *in_regs = - _core_if->dev_if->in_ep_regs[0]; - gnptxsts_data_t tx_status = {.d32 = 0}; - - tx_status.d32 = dwc_read_reg32( &_core_if->core_global_regs->gnptxsts ); - /** @todo Should there be check for room in the Tx - * Status Queue. If not remove the code above this comment. */ - - depctl.d32 = dwc_read_reg32(&in_regs->diepctl); - deptsiz.d32 = dwc_read_reg32(&in_regs->dieptsiz); - - /* Program the transfer size and packet count - * as follows: xfersize = N * maxpacket + - * short_packet pktcnt = N + (short_packet - * exist ? 1 : 0) - */ - deptsiz.b.xfersize = (_ep->total_len - _ep->xfer_count) > _ep->maxpacket ? _ep->maxpacket : - (_ep->total_len - _ep->xfer_count); - deptsiz.b.pktcnt = 1; - _ep->xfer_len += deptsiz.b.xfersize; - - dwc_write_reg32(&in_regs->dieptsiz, deptsiz.d32); - DWC_DEBUGPL(DBG_PCDV, "IN len=%d xfersize=%d pktcnt=%d [%08x]\n", - _ep->xfer_len, - deptsiz.b.xfersize, deptsiz.b.pktcnt, deptsiz.d32); - - /* Write the DMA register */ - if (_core_if->hwcfg2.b.architecture == DWC_INT_DMA_ARCH) { - dwc_write_reg32 (&(in_regs->diepdma), - CPHYSADDR((uint32_t)_ep->dma_addr)); // winder - } - - /* EP enable, IN data in FIFO */ - depctl.b.cnak = 1; - depctl.b.epena = 1; - dwc_write_reg32(&in_regs->diepctl, depctl.d32); - - /** - * Enable the Non-Periodic Tx FIFO empty interrupt, the - * data will be written into the fifo by the ISR. - */ - if (!_core_if->dma_enable) { - /* First clear it from GINTSTS */ - intr_mask.b.nptxfempty = 1; - dwc_write_reg32( &_core_if->core_global_regs->gintsts, - intr_mask.d32 ); - - dwc_modify_reg32( &_core_if->core_global_regs->gintmsk, - intr_mask.d32, intr_mask.d32); - } - - } - -} - -#ifdef DEBUG -void dump_msg(const u8 *buf, unsigned int length) -{ - unsigned int start, num, i; - char line[52], *p; - - if (length >= 512) - return; - start = 0; - while (length > 0) { - num = min(length, 16u); - p = line; - for (i = 0; i < num; ++i) { - if (i == 8) - *p++ = ' '; - sprintf(p, " %02x", buf[i]); - p += 3; - } - *p = 0; - DWC_PRINT( "%6x: %s\n", start, line); - buf += num; - start += num; - length -= num; - } -} -#else -static inline void dump_msg(const u8 *buf, unsigned int length) -{ -} -#endif - -/** - * This function writes a packet into the Tx FIFO associated with the - * EP. For non-periodic EPs the non-periodic Tx FIFO is written. For - * periodic EPs the periodic Tx FIFO associated with the EP is written - * with all packets for the next micro-frame. - * - * @param _core_if Programming view of DWC_otg controller. - * @param _ep The EP to write packet for. - * @param _dma Indicates if DMA is being used. - */ -void dwc_otg_ep_write_packet(dwc_otg_core_if_t *_core_if, dwc_ep_t *_ep, int _dma) -{ - /** - * The buffer is padded to DWORD on a per packet basis in - * slave/dma mode if the MPS is not DWORD aligned. The last - * packet, if short, is also padded to a multiple of DWORD. - * - * ep->xfer_buff always starts DWORD aligned in memory and is a - * multiple of DWORD in length - * - * ep->xfer_len can be any number of bytes - * - * ep->xfer_count is a multiple of ep->maxpacket until the last - * packet - * - * FIFO access is DWORD */ - - uint32_t i; - uint32_t byte_count; - uint32_t dword_count; - uint32_t *fifo; - uint32_t *data_buff = (uint32_t *)_ep->xfer_buff; - - //DWC_DEBUGPL((DBG_PCDV | DBG_CILV), "%s(%p,%p)\n", __func__, _core_if, _ep); - if (_ep->xfer_count >= _ep->xfer_len) { - DWC_WARN("%s() No data for EP%d!!!\n", __func__, _ep->num); - return; - } - - /* Find the byte length of the packet either short packet or MPS */ - if ((_ep->xfer_len - _ep->xfer_count) < _ep->maxpacket) { - byte_count = _ep->xfer_len - _ep->xfer_count; - } - else { - byte_count = _ep->maxpacket; - } - - /* Find the DWORD length, padded by extra bytes as neccessary if MPS - * is not a multiple of DWORD */ - dword_count = (byte_count + 3) / 4; - -#ifdef VERBOSE - dump_msg(_ep->xfer_buff, byte_count); -#endif - if (_ep->type == DWC_OTG_EP_TYPE_ISOC) { - /**@todo NGS Where are the Periodic Tx FIFO addresses - * intialized? What should this be? */ - fifo = _core_if->data_fifo[_ep->tx_fifo_num]; - } else { - fifo = _core_if->data_fifo[_ep->num]; - } - - DWC_DEBUGPL((DBG_PCDV|DBG_CILV), "fifo=%p buff=%p *p=%08x bc=%d\n", - fifo, data_buff, *data_buff, byte_count); - - - if (!_dma) { - for (i=0; i<dword_count; i++, data_buff++) { - dwc_write_reg32( fifo, *data_buff ); - } - } - - _ep->xfer_count += byte_count; - _ep->xfer_buff += byte_count; -#if 1 // winder, why do we need this?? - _ep->dma_addr += byte_count; -#endif -} - -/** - * Set the EP STALL. - * - * @param _core_if Programming view of DWC_otg controller. - * @param _ep The EP to set the stall on. - */ -void dwc_otg_ep_set_stall(dwc_otg_core_if_t *_core_if, dwc_ep_t *_ep) -{ - depctl_data_t depctl; - volatile uint32_t *depctl_addr; - - DWC_DEBUGPL(DBG_PCD, "%s ep%d-%s\n", __func__, _ep->num, - (_ep->is_in?"IN":"OUT")); - - if (_ep->is_in == 1) { - depctl_addr = &(_core_if->dev_if->in_ep_regs[_ep->num]->diepctl); - depctl.d32 = dwc_read_reg32(depctl_addr); - - /* set the disable and stall bits */ - if (depctl.b.epena) { - depctl.b.epdis = 1; - } - depctl.b.stall = 1; - dwc_write_reg32(depctl_addr, depctl.d32); - - } else { - depctl_addr = &(_core_if->dev_if->out_ep_regs[_ep->num]->doepctl); - depctl.d32 = dwc_read_reg32(depctl_addr); - - /* set the stall bit */ - depctl.b.stall = 1; - dwc_write_reg32(depctl_addr, depctl.d32); - } - DWC_DEBUGPL(DBG_PCD,"DEPCTL=%0x\n",dwc_read_reg32(depctl_addr)); - return; -} - -/** - * Clear the EP STALL. - * - * @param _core_if Programming view of DWC_otg controller. - * @param _ep The EP to clear stall from. - */ -void dwc_otg_ep_clear_stall(dwc_otg_core_if_t *_core_if, dwc_ep_t *_ep) -{ - depctl_data_t depctl; - volatile uint32_t *depctl_addr; - - DWC_DEBUGPL(DBG_PCD, "%s ep%d-%s\n", __func__, _ep->num, - (_ep->is_in?"IN":"OUT")); - - if (_ep->is_in == 1) { - depctl_addr = &(_core_if->dev_if->in_ep_regs[_ep->num]->diepctl); - } else { - depctl_addr = &(_core_if->dev_if->out_ep_regs[_ep->num]->doepctl); - } - - depctl.d32 = dwc_read_reg32(depctl_addr); - - /* clear the stall bits */ - depctl.b.stall = 0; - - /* - * USB Spec 9.4.5: For endpoints using data toggle, regardless - * of whether an endpoint has the Halt feature set, a - * ClearFeature(ENDPOINT_HALT) request always results in the - * data toggle being reinitialized to DATA0. - */ - if (_ep->type == DWC_OTG_EP_TYPE_INTR || - _ep->type == DWC_OTG_EP_TYPE_BULK) { - depctl.b.setd0pid = 1; /* DATA0 */ - } - - dwc_write_reg32(depctl_addr, depctl.d32); - DWC_DEBUGPL(DBG_PCD,"DEPCTL=%0x\n",dwc_read_reg32(depctl_addr)); - return; -} - -/** - * This function reads a packet from the Rx FIFO into the destination - * buffer. To read SETUP data use dwc_otg_read_setup_packet. - * - * @param _core_if Programming view of DWC_otg controller. - * @param _dest Destination buffer for the packet. - * @param _bytes Number of bytes to copy to the destination. - */ -void dwc_otg_read_packet(dwc_otg_core_if_t *_core_if, - uint8_t *_dest, - uint16_t _bytes) -{ - int i; - int word_count = (_bytes + 3) / 4; - - volatile uint32_t *fifo = _core_if->data_fifo[0]; - uint32_t *data_buff = (uint32_t *)_dest; - - /** - * @todo Account for the case where _dest is not dword aligned. This - * requires reading data from the FIFO into a uint32_t temp buffer, - * then moving it into the data buffer. - */ - - DWC_DEBUGPL((DBG_PCDV | DBG_CILV), "%s(%p,%p,%d)\n", __func__, - _core_if, _dest, _bytes); - - for (i=0; i<word_count; i++, data_buff++) { - *data_buff = dwc_read_reg32(fifo); - } - - return; -} - - -#ifdef DEBUG -/** - * This functions reads the device registers and prints them - * - * @param _core_if Programming view of DWC_otg controller. - */ -void dwc_otg_dump_dev_registers(dwc_otg_core_if_t *_core_if) -{ - int i; - volatile uint32_t *addr; - - DWC_PRINT("Device Global Registers\n"); - addr=&_core_if->dev_if->dev_global_regs->dcfg; - DWC_PRINT("DCFG @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); - addr=&_core_if->dev_if->dev_global_regs->dctl; - DWC_PRINT("DCTL @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); - addr=&_core_if->dev_if->dev_global_regs->dsts; - DWC_PRINT("DSTS @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); - addr=&_core_if->dev_if->dev_global_regs->diepmsk; - DWC_PRINT("DIEPMSK @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); - addr=&_core_if->dev_if->dev_global_regs->doepmsk; - DWC_PRINT("DOEPMSK @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); - addr=&_core_if->dev_if->dev_global_regs->daint; - DWC_PRINT("DAINT @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); - addr=&_core_if->dev_if->dev_global_regs->dtknqr1; - DWC_PRINT("DTKNQR1 @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); - if (_core_if->hwcfg2.b.dev_token_q_depth > 6) { - addr=&_core_if->dev_if->dev_global_regs->dtknqr2; - DWC_PRINT("DTKNQR2 @0x%08X : 0x%08X\n", - (uint32_t)addr,dwc_read_reg32(addr)); - } - - addr=&_core_if->dev_if->dev_global_regs->dvbusdis; - DWC_PRINT("DVBUSID @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); - - addr=&_core_if->dev_if->dev_global_regs->dvbuspulse; - DWC_PRINT("DVBUSPULSE @0x%08X : 0x%08X\n", - (uint32_t)addr,dwc_read_reg32(addr)); - - if (_core_if->hwcfg2.b.dev_token_q_depth > 14) { - addr = &_core_if->dev_if->dev_global_regs->dtknqr3_dthrctl; - DWC_PRINT("DTKNQR3 @0x%08X : 0x%08X\n", - (uint32_t)addr, dwc_read_reg32(addr)); - } - - if (_core_if->hwcfg2.b.dev_token_q_depth > 22) { - addr = &_core_if->dev_if->dev_global_regs->dtknqr4_fifoemptymsk; - DWC_PRINT("DTKNQR4 @0x%08X : 0x%08X\n", (uint32_t) addr, - dwc_read_reg32(addr)); - } - for (i = 0; i <= _core_if->dev_if->num_in_eps; i++) { - DWC_PRINT("Device IN EP %d Registers\n", i); - addr=&_core_if->dev_if->in_ep_regs[i]->diepctl; - DWC_PRINT("DIEPCTL @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); - addr=&_core_if->dev_if->in_ep_regs[i]->diepint; - DWC_PRINT("DIEPINT @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); - addr=&_core_if->dev_if->in_ep_regs[i]->dieptsiz; - DWC_PRINT("DIETSIZ @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); - addr=&_core_if->dev_if->in_ep_regs[i]->diepdma; - DWC_PRINT("DIEPDMA @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); - -addr = &_core_if->dev_if->in_ep_regs[i]->dtxfsts; - DWC_PRINT("DTXFSTS @0x%08X : 0x%08X\n", (uint32_t) addr, - dwc_read_reg32(addr)); - } - for (i = 0; i <= _core_if->dev_if->num_out_eps; i++) { - DWC_PRINT("Device OUT EP %d Registers\n", i); - addr=&_core_if->dev_if->out_ep_regs[i]->doepctl; - DWC_PRINT("DOEPCTL @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); - addr=&_core_if->dev_if->out_ep_regs[i]->doepfn; - DWC_PRINT("DOEPFN @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); - addr=&_core_if->dev_if->out_ep_regs[i]->doepint; - DWC_PRINT("DOEPINT @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); - addr=&_core_if->dev_if->out_ep_regs[i]->doeptsiz; - DWC_PRINT("DOETSIZ @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); - addr=&_core_if->dev_if->out_ep_regs[i]->doepdma; - DWC_PRINT("DOEPDMA @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); - } - return; -} - -/** - * This function reads the host registers and prints them - * - * @param _core_if Programming view of DWC_otg controller. - */ -void dwc_otg_dump_host_registers(dwc_otg_core_if_t *_core_if) -{ - int i; - volatile uint32_t *addr; - - DWC_PRINT("Host Global Registers\n"); - addr=&_core_if->host_if->host_global_regs->hcfg; - DWC_PRINT("HCFG @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); - addr=&_core_if->host_if->host_global_regs->hfir; - DWC_PRINT("HFIR @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); - addr=&_core_if->host_if->host_global_regs->hfnum; - DWC_PRINT("HFNUM @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); - addr=&_core_if->host_if->host_global_regs->hptxsts; - DWC_PRINT("HPTXSTS @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); - addr=&_core_if->host_if->host_global_regs->haint; - DWC_PRINT("HAINT @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); - addr=&_core_if->host_if->host_global_regs->haintmsk; - DWC_PRINT("HAINTMSK @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); - addr=_core_if->host_if->hprt0; - DWC_PRINT("HPRT0 @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); - - for (i=0; i<_core_if->core_params->host_channels; i++) { - DWC_PRINT("Host Channel %d Specific Registers\n", i); - addr=&_core_if->host_if->hc_regs[i]->hcchar; - DWC_PRINT("HCCHAR @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); - addr=&_core_if->host_if->hc_regs[i]->hcsplt; - DWC_PRINT("HCSPLT @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); - addr=&_core_if->host_if->hc_regs[i]->hcint; - DWC_PRINT("HCINT @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); - addr=&_core_if->host_if->hc_regs[i]->hcintmsk; - DWC_PRINT("HCINTMSK @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); - addr=&_core_if->host_if->hc_regs[i]->hctsiz; - DWC_PRINT("HCTSIZ @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); - addr=&_core_if->host_if->hc_regs[i]->hcdma; - DWC_PRINT("HCDMA @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); - - } - return; -} - -/** - * This function reads the core global registers and prints them - * - * @param _core_if Programming view of DWC_otg controller. - */ -void dwc_otg_dump_global_registers(dwc_otg_core_if_t *_core_if) -{ - int i; - volatile uint32_t *addr; - - DWC_PRINT("Core Global Registers\n"); - addr=&_core_if->core_global_regs->gotgctl; - DWC_PRINT("GOTGCTL @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); - addr=&_core_if->core_global_regs->gotgint; - DWC_PRINT("GOTGINT @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); - addr=&_core_if->core_global_regs->gahbcfg; - DWC_PRINT("GAHBCFG @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); - addr=&_core_if->core_global_regs->gusbcfg; - DWC_PRINT("GUSBCFG @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); - addr=&_core_if->core_global_regs->grstctl; - DWC_PRINT("GRSTCTL @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); - addr=&_core_if->core_global_regs->gintsts; - DWC_PRINT("GINTSTS @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); - addr=&_core_if->core_global_regs->gintmsk; - DWC_PRINT("GINTMSK @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); - addr=&_core_if->core_global_regs->grxstsr; - DWC_PRINT("GRXSTSR @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); - //addr=&_core_if->core_global_regs->grxstsp; - //DWC_PRINT("GRXSTSP @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); - addr=&_core_if->core_global_regs->grxfsiz; - DWC_PRINT("GRXFSIZ @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); - addr=&_core_if->core_global_regs->gnptxfsiz; - DWC_PRINT("GNPTXFSIZ @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); - addr=&_core_if->core_global_regs->gnptxsts; - DWC_PRINT("GNPTXSTS @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); - addr=&_core_if->core_global_regs->gi2cctl; - DWC_PRINT("GI2CCTL @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); - addr=&_core_if->core_global_regs->gpvndctl; - DWC_PRINT("GPVNDCTL @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); - addr=&_core_if->core_global_regs->ggpio; - DWC_PRINT("GGPIO @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); - addr=&_core_if->core_global_regs->guid; - DWC_PRINT("GUID @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); - addr=&_core_if->core_global_regs->gsnpsid; - DWC_PRINT("GSNPSID @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); - addr=&_core_if->core_global_regs->ghwcfg1; - DWC_PRINT("GHWCFG1 @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); - addr=&_core_if->core_global_regs->ghwcfg2; - DWC_PRINT("GHWCFG2 @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); - addr=&_core_if->core_global_regs->ghwcfg3; - DWC_PRINT("GHWCFG3 @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); - addr=&_core_if->core_global_regs->ghwcfg4; - DWC_PRINT("GHWCFG4 @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); - addr=&_core_if->core_global_regs->hptxfsiz; - DWC_PRINT("HPTXFSIZ @0x%08X : 0x%08X\n",(uint32_t)addr,dwc_read_reg32(addr)); - - for (i=0; i<_core_if->hwcfg4.b.num_dev_perio_in_ep; i++) { - addr=&_core_if->core_global_regs->dptxfsiz_dieptxf[i]; - DWC_PRINT("DPTXFSIZ[%d] @0x%08X : 0x%08X\n",i,(uint32_t)addr,dwc_read_reg32(addr)); - } - -} -#endif - -/** - * Flush a Tx FIFO. - * - * @param _core_if Programming view of DWC_otg controller. - * @param _num Tx FIFO to flush. - */ -extern void dwc_otg_flush_tx_fifo( dwc_otg_core_if_t *_core_if, - const int _num ) -{ - dwc_otg_core_global_regs_t *global_regs = _core_if->core_global_regs; - volatile grstctl_t greset = { .d32 = 0}; - int count = 0; - - DWC_DEBUGPL((DBG_CIL|DBG_PCDV), "Flush Tx FIFO %d\n", _num); - - greset.b.txfflsh = 1; - greset.b.txfnum = _num; - dwc_write_reg32( &global_regs->grstctl, greset.d32 ); - - do { - greset.d32 = dwc_read_reg32( &global_regs->grstctl); - if (++count > 10000){ - DWC_WARN("%s() HANG! GRSTCTL=%0x GNPTXSTS=0x%08x\n", - __func__, greset.d32, - dwc_read_reg32( &global_regs->gnptxsts)); - break; - } - - udelay(1); - } while (greset.b.txfflsh == 1); - /* Wait for 3 PHY Clocks*/ - UDELAY(1); -} - -/** - * Flush Rx FIFO. - * - * @param _core_if Programming view of DWC_otg controller. - */ -extern void dwc_otg_flush_rx_fifo( dwc_otg_core_if_t *_core_if ) -{ - dwc_otg_core_global_regs_t *global_regs = _core_if->core_global_regs; - volatile grstctl_t greset = { .d32 = 0}; - int count = 0; - - DWC_DEBUGPL((DBG_CIL|DBG_PCDV), "%s\n", __func__); - /* - * - */ - greset.b.rxfflsh = 1; - dwc_write_reg32( &global_regs->grstctl, greset.d32 ); - - do { - greset.d32 = dwc_read_reg32( &global_regs->grstctl); - if (++count > 10000){ - DWC_WARN("%s() HANG! GRSTCTL=%0x\n", __func__, - greset.d32); - break; - } - } while (greset.b.rxfflsh == 1); - /* Wait for 3 PHY Clocks*/ - UDELAY(1); -} - -/** - * Do core a soft reset of the core. Be careful with this because it - * resets all the internal state machines of the core. - */ - -void dwc_otg_core_reset(dwc_otg_core_if_t *_core_if) -{ - dwc_otg_core_global_regs_t *global_regs = _core_if->core_global_regs; - volatile grstctl_t greset = { .d32 = 0}; - int count = 0; - - DWC_DEBUGPL(DBG_CILV, "%s\n", __func__); - /* Wait for AHB master IDLE state. */ - do { - UDELAY(10); - greset.d32 = dwc_read_reg32( &global_regs->grstctl); - if (++count > 100000){ - DWC_WARN("%s() HANG! AHB Idle GRSTCTL=%0x %x\n", __func__, - greset.d32, greset.b.ahbidle); - return; - } - } while (greset.b.ahbidle == 0); - -// winder add. -#if 1 - /* Note: Actually, I don't exactly why we need to put delay here. */ - MDELAY(100); -#endif - /* Core Soft Reset */ - count = 0; - greset.b.csftrst = 1; - dwc_write_reg32( &global_regs->grstctl, greset.d32 ); -// winder add. -#if 1 - /* Note: Actually, I don't exactly why we need to put delay here. */ - MDELAY(100); -#endif - do { - greset.d32 = dwc_read_reg32( &global_regs->grstctl); - if (++count > 10000){ - DWC_WARN("%s() HANG! Soft Reset GRSTCTL=%0x\n", __func__, - greset.d32); - break; - } - udelay(1); - } while (greset.b.csftrst == 1); - /* Wait for 3 PHY Clocks*/ - //DWC_PRINT("100ms\n"); - MDELAY(100); -} - - - -/** - * Register HCD callbacks. The callbacks are used to start and stop - * the HCD for interrupt processing. - * - * @param _core_if Programming view of DWC_otg controller. - * @param _cb the HCD callback structure. - * @param _p pointer to be passed to callback function (usb_hcd*). - */ -extern void dwc_otg_cil_register_hcd_callbacks( dwc_otg_core_if_t *_core_if, - dwc_otg_cil_callbacks_t *_cb, - void *_p) -{ - _core_if->hcd_cb = _cb; - _cb->p = _p; -} - -/** - * Register PCD callbacks. The callbacks are used to start and stop - * the PCD for interrupt processing. - * - * @param _core_if Programming view of DWC_otg controller. - * @param _cb the PCD callback structure. - * @param _p pointer to be passed to callback function (pcd*). - */ -extern void dwc_otg_cil_register_pcd_callbacks( dwc_otg_core_if_t *_core_if, - dwc_otg_cil_callbacks_t *_cb, - void *_p) -{ - _core_if->pcd_cb = _cb; - _cb->p = _p; -} - |