summaryrefslogtreecommitdiff
path: root/target/linux/s3c24xx/patches-2.6.26/1010-gta01-power_control.patch.patch
diff options
context:
space:
mode:
Diffstat (limited to 'target/linux/s3c24xx/patches-2.6.26/1010-gta01-power_control.patch.patch')
-rwxr-xr-xtarget/linux/s3c24xx/patches-2.6.26/1010-gta01-power_control.patch.patch976
1 files changed, 976 insertions, 0 deletions
diff --git a/target/linux/s3c24xx/patches-2.6.26/1010-gta01-power_control.patch.patch b/target/linux/s3c24xx/patches-2.6.26/1010-gta01-power_control.patch.patch
new file mode 100755
index 0000000..76d645f
--- /dev/null
+++ b/target/linux/s3c24xx/patches-2.6.26/1010-gta01-power_control.patch.patch
@@ -0,0 +1,976 @@
+From 0739383d85822b93831803abb207794c16eedd79 Mon Sep 17 00:00:00 2001
+From: mokopatches <mokopatches@openmoko.org>
+Date: Wed, 16 Jul 2008 14:44:48 +0100
+Subject: [PATCH] gta01-power_control.patch
+ [PATCH] Neo1973 GPS / GSM / Bluetooth power control via sysfs
+
+Signed-off-by: Harald Welte <laforge@openmoko.org>
+---
+ arch/arm/plat-s3c24xx/Makefile | 1 +
+ arch/arm/plat-s3c24xx/neo1973_pm_bt.c | 152 +++++++++
+ arch/arm/plat-s3c24xx/neo1973_pm_gps.c | 560 ++++++++++++++++++++++++++++++++
+ arch/arm/plat-s3c24xx/neo1973_pm_gsm.c | 217 ++++++++++++
+ 4 files changed, 930 insertions(+), 0 deletions(-)
+ create mode 100644 arch/arm/plat-s3c24xx/neo1973_pm_bt.c
+ create mode 100644 arch/arm/plat-s3c24xx/neo1973_pm_gps.c
+ create mode 100644 arch/arm/plat-s3c24xx/neo1973_pm_gsm.c
+
+diff --git a/arch/arm/plat-s3c24xx/Makefile b/arch/arm/plat-s3c24xx/Makefile
+index 131d202..6f43aca 100644
+--- a/arch/arm/plat-s3c24xx/Makefile
++++ b/arch/arm/plat-s3c24xx/Makefile
+@@ -29,3 +29,4 @@ obj-$(CONFIG_PM) += pm.o
+ obj-$(CONFIG_PM) += sleep.o
+ obj-$(CONFIG_S3C2410_DMA) += dma.o
+ obj-$(CONFIG_MACH_SMDK) += common-smdk.o
++obj-$(CONFIG_MACH_NEO1973) += neo1973_pm_gsm.o neo1973_pm_gps.o neo1973_pm_bt.o
+diff --git a/arch/arm/plat-s3c24xx/neo1973_pm_bt.c b/arch/arm/plat-s3c24xx/neo1973_pm_bt.c
+new file mode 100644
+index 0000000..b1af441
+--- /dev/null
++++ b/arch/arm/plat-s3c24xx/neo1973_pm_bt.c
+@@ -0,0 +1,152 @@
++/*
++ * Bluetooth PM code for the FIC Neo1973 GSM Phone
++ *
++ * (C) 2007 by OpenMoko Inc.
++ * Author: Harald Welte <laforge@openmoko.org>
++ * All rights reserved.
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License version 2 as
++ * published by the Free Software Foundation
++ *
++ */
++
++#include <linux/module.h>
++#include <linux/init.h>
++#include <linux/kernel.h>
++#include <linux/platform_device.h>
++
++#include <linux/pcf50606.h>
++
++#include <asm/hardware.h>
++#include <asm/arch/gta01.h>
++
++#define DRVMSG "FIC Neo1973 Bluetooth Power Management"
++
++static ssize_t bt_read(struct device *dev, struct device_attribute *attr,
++ char *buf)
++{
++ if (!strcmp(attr->attr.name, "power_on")) {
++ if (pcf50606_onoff_get(pcf50606_global,
++ PCF50606_REGULATOR_D1REG) &&
++ pcf50606_voltage_get(pcf50606_global,
++ PCF50606_REGULATOR_D1REG) == 3100)
++ goto out_1;
++ } else if (!strcmp(attr->attr.name, "reset")) {
++ if (s3c2410_gpio_getpin(GTA01_GPIO_BT_EN) == 0)
++ goto out_1;
++ }
++
++ return strlcpy(buf, "0\n", 3);
++out_1:
++ return strlcpy(buf, "1\n", 3);
++}
++
++static ssize_t bt_write(struct device *dev, struct device_attribute *attr,
++ const char *buf, size_t count)
++{
++ unsigned long on = simple_strtoul(buf, NULL, 10);
++
++ if (!strcmp(attr->attr.name, "power_on")) {
++ /* if we are powering up, assert reset, then power, then
++ * release reset */
++ if (on) {
++ s3c2410_gpio_setpin(GTA01_GPIO_BT_EN, 0);
++ pcf50606_voltage_set(pcf50606_global,
++ PCF50606_REGULATOR_D1REG,
++ 3100);
++ }
++ pcf50606_onoff_set(pcf50606_global,
++ PCF50606_REGULATOR_D1REG, on);
++ s3c2410_gpio_setpin(GTA01_GPIO_BT_EN, on);
++ } else if (!strcmp(attr->attr.name, "reset")) {
++ /* reset is low-active, so we need to invert */
++ s3c2410_gpio_setpin(GTA01_GPIO_BT_EN, on ? 0 : 1);
++ }
++
++ return count;
++}
++
++static DEVICE_ATTR(power_on, 0644, bt_read, bt_write);
++static DEVICE_ATTR(reset, 0644, bt_read, bt_write);
++
++#ifdef CONFIG_PM
++static int gta01_bt_suspend(struct platform_device *pdev, pm_message_t state)
++{
++ dev_dbg(&pdev->dev, DRVMSG ": suspending\n");
++ /* FIXME: The PMU should save the PMU status, and the GPIO code should
++ * preserve the GPIO level, so there shouldn't be anything left to do
++ * for us, should there? */
++
++ return 0;
++}
++
++static int gta01_bt_resume(struct platform_device *pdev)
++{
++ dev_dbg(&pdev->dev, DRVMSG ": resuming\n");
++
++ return 0;
++}
++#else
++#define gta01_bt_suspend NULL
++#define gta01_bt_resume NULL
++#endif
++
++static struct attribute *gta01_bt_sysfs_entries[] = {
++ &dev_attr_power_on.attr,
++ &dev_attr_reset.attr,
++ NULL
++};
++
++static struct attribute_group gta01_bt_attr_group = {
++ .name = NULL,
++ .attrs = gta01_bt_sysfs_entries,
++};
++
++static int __init gta01_bt_probe(struct platform_device *pdev)
++{
++ dev_info(&pdev->dev, DRVMSG ": starting\n");
++
++ /* we make sure that the voltage is off */
++ pcf50606_onoff_set(pcf50606_global,
++ PCF50606_REGULATOR_D1REG, 0);
++ /* we pull reset to low to make sure that the chip doesn't
++ * drain power through the reset line */
++ s3c2410_gpio_setpin(GTA01_GPIO_BT_EN, 0);
++
++ return sysfs_create_group(&pdev->dev.kobj, &gta01_bt_attr_group);
++}
++
++static int gta01_bt_remove(struct platform_device *pdev)
++{
++ sysfs_remove_group(&pdev->dev.kobj, &gta01_bt_attr_group);
++
++ return 0;
++}
++
++static struct platform_driver gta01_bt_driver = {
++ .probe = gta01_bt_probe,
++ .remove = gta01_bt_remove,
++ .suspend = gta01_bt_suspend,
++ .resume = gta01_bt_resume,
++ .driver = {
++ .name = "neo1973-pm-bt",
++ },
++};
++
++static int __devinit gta01_bt_init(void)
++{
++ return platform_driver_register(&gta01_bt_driver);
++}
++
++static void gta01_bt_exit(void)
++{
++ platform_driver_unregister(&gta01_bt_driver);
++}
++
++module_init(gta01_bt_init);
++module_exit(gta01_bt_exit);
++
++MODULE_LICENSE("GPL");
++MODULE_AUTHOR("Harald Welte <laforge@openmoko.org>");
++MODULE_DESCRIPTION(DRVMSG);
+diff --git a/arch/arm/plat-s3c24xx/neo1973_pm_gps.c b/arch/arm/plat-s3c24xx/neo1973_pm_gps.c
+new file mode 100644
+index 0000000..f8cf719
+--- /dev/null
++++ b/arch/arm/plat-s3c24xx/neo1973_pm_gps.c
+@@ -0,0 +1,560 @@
++/*
++ * GPS Power Management code for the FIC Neo1973 GSM Phone
++ *
++ * (C) 2007 by OpenMoko Inc.
++ * Author: Harald Welte <laforge@openmoko.org>
++ * All rights reserved.
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License version 2 as
++ * published by the Free Software Foundation
++ *
++ */
++
++#include <linux/module.h>
++#include <linux/init.h>
++#include <linux/kernel.h>
++#include <linux/delay.h>
++#include <linux/platform_device.h>
++
++#include <linux/pcf50606.h>
++
++#include <asm/hardware.h>
++#include <asm/arch/gta01.h>
++
++/* This is the 2.8V supply for the RTC crystal, the mail clock crystal and
++ * the input to VDD_RF */
++static void gps_power_2v8_set(int on)
++{
++ switch (system_rev) {
++ case GTA01v3_SYSTEM_REV:
++ case GTA01v4_SYSTEM_REV:
++ if (on)
++ pcf50606_voltage_set(pcf50606_global,
++ PCF50606_REGULATOR_IOREG, 2800);
++ pcf50606_onoff_set(pcf50606_global,
++ PCF50606_REGULATOR_IOREG, on);
++ break;
++ case GTA01Bv2_SYSTEM_REV:
++ s3c2410_gpio_setpin(GTA01_GPIO_GPS_EN_2V8, on);
++ break;
++ case GTA01Bv3_SYSTEM_REV:
++ case GTA01Bv4_SYSTEM_REV:
++ break;
++ }
++}
++
++static int gps_power_2v8_get(void)
++{
++ int ret = 0;
++
++ switch (system_rev) {
++ case GTA01v3_SYSTEM_REV:
++ case GTA01v4_SYSTEM_REV:
++ if (pcf50606_onoff_get(pcf50606_global,
++ PCF50606_REGULATOR_IOREG) &&
++ pcf50606_voltage_get(pcf50606_global,
++ PCF50606_REGULATOR_IOREG) == 2800)
++ ret = 1;
++ break;
++ case GTA01Bv2_SYSTEM_REV:
++ if (s3c2410_gpio_getpin(GTA01_GPIO_GPS_EN_2V8))
++ ret = 1;
++ break;
++ case GTA01Bv3_SYSTEM_REV:
++ case GTA01Bv4_SYSTEM_REV:
++ break;
++ }
++
++ return ret;
++}
++
++/* This is the 3V supply (AVDD) for the external RF frontend (LNA bias) */
++static void gps_power_3v_set(int on)
++{
++ switch (system_rev) {
++ case GTA01v3_SYSTEM_REV:
++ case GTA01v4_SYSTEM_REV:
++ if (on)
++ pcf50606_voltage_set(pcf50606_global,
++ PCF50606_REGULATOR_D1REG, 3000);
++ pcf50606_onoff_set(pcf50606_global,
++ PCF50606_REGULATOR_D1REG, on);
++ break;
++ case GTA01Bv2_SYSTEM_REV:
++ case GTA01Bv3_SYSTEM_REV:
++ case GTA01Bv4_SYSTEM_REV:
++ s3c2410_gpio_setpin(GTA01_GPIO_GPS_EN_3V, on);
++ break;
++ }
++}
++
++static int gps_power_3v_get(void)
++{
++ int ret = 0;
++
++ switch (system_rev) {
++ case GTA01v3_SYSTEM_REV:
++ case GTA01v4_SYSTEM_REV:
++ if (pcf50606_onoff_get(pcf50606_global,
++ PCF50606_REGULATOR_D1REG) &&
++ pcf50606_voltage_get(pcf50606_global,
++ PCF50606_REGULATOR_D1REG) == 3000)
++ ret = 1;
++ break;
++ case GTA01Bv2_SYSTEM_REV:
++ case GTA01Bv3_SYSTEM_REV:
++ case GTA01Bv4_SYSTEM_REV:
++ if (s3c2410_gpio_getpin(GTA01_GPIO_GPS_EN_3V))
++ ret = 1;
++ break;
++ }
++
++ return ret;
++}
++
++/* This is the 3.3V supply for VDD_IO and VDD_LPREG input */
++static void gps_power_3v3_set(int on)
++{
++ switch (system_rev) {
++ case GTA01v3_SYSTEM_REV:
++ case GTA01v4_SYSTEM_REV:
++ case GTA01Bv2_SYSTEM_REV:
++ if (on)
++ pcf50606_voltage_set(pcf50606_global,
++ PCF50606_REGULATOR_DCD, 3300);
++ pcf50606_onoff_set(pcf50606_global,
++ PCF50606_REGULATOR_DCD, on);
++ break;
++ case GTA01Bv3_SYSTEM_REV:
++ case GTA01Bv4_SYSTEM_REV:
++ s3c2410_gpio_setpin(GTA01_GPIO_GPS_EN_3V3, on);
++ break;
++ }
++}
++
++static int gps_power_3v3_get(void)
++{
++ int ret = 0;
++
++ switch (system_rev) {
++ case GTA01v3_SYSTEM_REV:
++ case GTA01v4_SYSTEM_REV:
++ case GTA01Bv2_SYSTEM_REV:
++ if (pcf50606_onoff_get(pcf50606_global,
++ PCF50606_REGULATOR_DCD) &&
++ pcf50606_voltage_get(pcf50606_global,
++ PCF50606_REGULATOR_DCD) == 3300)
++ ret = 1;
++ break;
++ case GTA01Bv3_SYSTEM_REV:
++ case GTA01Bv4_SYSTEM_REV:
++ if (s3c2410_gpio_getpin(GTA01_GPIO_GPS_EN_3V3))
++ ret = 1;
++ break;
++ }
++
++ return ret;
++}
++
++/* This is the 2.5V supply for VDD_PLLREG and VDD_COREREG input */
++static void gps_power_2v5_set(int on)
++{
++ switch (system_rev) {
++ case GTA01v3_SYSTEM_REV:
++ /* This is CORE_1V8 and cannot be disabled */
++ break;
++ case GTA01v4_SYSTEM_REV:
++ case GTA01Bv2_SYSTEM_REV:
++ case GTA01Bv3_SYSTEM_REV:
++ case GTA01Bv4_SYSTEM_REV:
++ if (on)
++ pcf50606_voltage_set(pcf50606_global,
++ PCF50606_REGULATOR_D2REG, 2500);
++ pcf50606_onoff_set(pcf50606_global,
++ PCF50606_REGULATOR_D2REG, on);
++ break;
++ }
++}
++
++static int gps_power_2v5_get(void)
++{
++ int ret = 0;
++
++ switch (system_rev) {
++ case GTA01v3_SYSTEM_REV:
++ /* This is CORE_1V8 and cannot be disabled */
++ ret = 1;
++ break;
++ case GTA01v4_SYSTEM_REV:
++ case GTA01Bv2_SYSTEM_REV:
++ case GTA01Bv3_SYSTEM_REV:
++ case GTA01Bv4_SYSTEM_REV:
++ if (pcf50606_onoff_get(pcf50606_global,
++ PCF50606_REGULATOR_D2REG) &&
++ pcf50606_voltage_get(pcf50606_global,
++ PCF50606_REGULATOR_D2REG) == 2500)
++ ret = 1;
++ break;
++ }
++
++ return ret;
++}
++
++/* This is the 1.5V supply for VDD_CORE */
++static void gps_power_1v5_set(int on)
++{
++ switch (system_rev) {
++ case GTA01v3_SYSTEM_REV:
++ case GTA01v4_SYSTEM_REV:
++ case GTA01Bv2_SYSTEM_REV:
++ /* This is switched via 2v5 */
++ break;
++ case GTA01Bv3_SYSTEM_REV:
++ case GTA01Bv4_SYSTEM_REV:
++ if (on)
++ pcf50606_voltage_set(pcf50606_global,
++ PCF50606_REGULATOR_DCD, 1500);
++ pcf50606_onoff_set(pcf50606_global,
++ PCF50606_REGULATOR_DCD, on);
++ break;
++ }
++}
++
++static int gps_power_1v5_get(void)
++{
++ int ret = 0;
++
++ switch (system_rev) {
++ case GTA01v3_SYSTEM_REV:
++ case GTA01v4_SYSTEM_REV:
++ case GTA01Bv2_SYSTEM_REV:
++ /* This is switched via 2v5 */
++ ret = 1;
++ break;
++ case GTA01Bv3_SYSTEM_REV:
++ case GTA01Bv4_SYSTEM_REV:
++ if (pcf50606_onoff_get(pcf50606_global,
++ PCF50606_REGULATOR_DCD) &&
++ pcf50606_voltage_get(pcf50606_global,
++ PCF50606_REGULATOR_DCD) == 1500)
++ ret = 1;
++ break;
++ }
++
++ return ret;
++}
++
++/* This is the POWERON pin */
++static void gps_pwron_set(int on)
++{
++ s3c2410_gpio_setpin(GTA01_GPIO_GPS_PWRON, on);
++}
++
++static int gps_pwron_get(void)
++{
++ if (s3c2410_gpio_getpin(GTA01_GPIO_GPS_PWRON))
++ return 1;
++ else
++ return 0;
++}
++
++/* This is the nRESET pin */
++static void gps_rst_set(int on)
++{
++ switch (system_rev) {
++ case GTA01v3_SYSTEM_REV:
++ pcf50606_gpo0_set(pcf50606_global, on);
++ break;
++ case GTA01v4_SYSTEM_REV:
++ case GTA01Bv2_SYSTEM_REV:
++ case GTA01Bv3_SYSTEM_REV:
++ case GTA01Bv4_SYSTEM_REV:
++ s3c2410_gpio_setpin(GTA01_GPIO_GPS_RESET, on);
++ break;
++ }
++}
++
++static int gps_rst_get(void)
++{
++ switch (system_rev) {
++ case GTA01v3_SYSTEM_REV:
++ if (pcf50606_gpo0_get(pcf50606_global))
++ return 1;
++ break;
++ case GTA01v4_SYSTEM_REV:
++ case GTA01Bv2_SYSTEM_REV:
++ case GTA01Bv3_SYSTEM_REV:
++ case GTA01Bv4_SYSTEM_REV:
++ if (s3c2410_gpio_getpin(GTA01_GPIO_GPS_RESET))
++ return 1;
++ break;
++ }
++
++ return 0;
++}
++
++static ssize_t power_gps_read(struct device *dev,
++ struct device_attribute *attr, char *buf)
++{
++ int ret = 0;
++
++ if (!strcmp(attr->attr.name, "power_tcxo_2v8")) {
++ ret = gps_power_2v8_get();
++ } else if (!strcmp(attr->attr.name, "power_avdd_3v")) {
++ ret = gps_power_3v_get();
++ } else if (!strcmp(attr->attr.name, "pwron")) {
++ ret = gps_pwron_get();
++ } else if (!strcmp(attr->attr.name, "reset")) {
++ ret = gps_rst_get();
++ } else if (!strcmp(attr->attr.name, "power_lp_io_3v3")) {
++ ret = gps_power_3v3_get();
++ } else if (!strcmp(attr->attr.name, "power_pll_core_2v5")) {
++ ret = gps_power_2v5_get();
++ } else if (!strcmp(attr->attr.name, "power_core_1v5") ||
++ !strcmp(attr->attr.name, "power_vdd_core_1v5")) {
++ ret = gps_power_1v5_get();
++ }
++
++ if (ret)
++ return strlcpy(buf, "1\n", 3);
++ else
++ return strlcpy(buf, "0\n", 3);
++}
++
++static ssize_t power_gps_write(struct device *dev,
++ struct device_attribute *attr, const char *buf,
++ size_t count)
++{
++ unsigned long on = simple_strtoul(buf, NULL, 10);
++
++ if (!strcmp(attr->attr.name, "power_tcxo_2v8")) {
++ gps_power_2v8_set(on);
++ } else if (!strcmp(attr->attr.name, "power_avdd_3v")) {
++ gps_power_3v_set(on);
++ } else if (!strcmp(attr->attr.name, "pwron")) {
++ gps_pwron_set(on);
++ } else if (!strcmp(attr->attr.name, "reset")) {
++ gps_rst_set(on);
++ } else if (!strcmp(attr->attr.name, "power_lp_io_3v3")) {
++ gps_power_3v3_set(on);
++ } else if (!strcmp(attr->attr.name, "power_pll_core_2v5")) {
++ gps_power_2v5_set(on);
++ } else if (!strcmp(attr->attr.name, "power_core_1v5") ||
++ !strcmp(attr->attr.name, "power_vdd_core_1v5")) {
++ gps_power_1v5_set(on);
++ }
++
++ return count;
++}
++
++static void gps_power_sequence_up(void)
++{
++ /* According to PMB2520 Data Sheet, Rev. 2006-06-05,
++ * Chapter 4.2.2 */
++
++ /* nRESET must be asserted low */
++ gps_rst_set(0);
++
++ /* POWERON must be de-asserted (low) */
++ gps_pwron_set(0);
++
++ /* Apply VDD_IO and VDD_LPREG_IN */
++ gps_power_3v3_set(1);
++
++ /* VDD_COREREG_IN, VDD_PLLREG_IN */
++ gps_power_1v5_set(1);
++ gps_power_2v5_set(1);
++
++ /* and VDD_RF may be applied */
++ gps_power_2v8_set(1);
++
++ /* We need to enable AVDD, since in GTA01Bv3 it is
++ * shared with RFREG_IN */
++ gps_power_3v_set(1);
++
++ msleep(3); /* Is 3ms enough? */
++
++ /* De-asert nRESET */
++ gps_rst_set(1);
++
++ /* Switch power on */
++ gps_pwron_set(1);
++
++}
++
++static void gps_power_sequence_down(void)
++{
++ /* According to PMB2520 Data Sheet, Rev. 2006-06-05,
++ * Chapter 4.2.3.1 */
++ gps_pwron_set(0);
++
++ /* Don't disable AVDD before PWRON is cleared, since
++ * in GTA01Bv3, AVDD and RFREG_IN are shared */
++ gps_power_3v_set(0);
++
++ /* Remove VDD_COREREG_IN, VDD_PLLREG_IN and VDD_REFREG_IN */
++ gps_power_1v5_set(0);
++ gps_power_2v5_set(0);
++ gps_power_2v8_set(0);
++
++ /* Remove VDD_LPREG_IN and VDD_IO */
++ gps_power_3v3_set(0);
++}
++
++
++static ssize_t power_sequence_read(struct device *dev,
++ struct device_attribute *attr,
++ char *buf)
++{
++ return strlcpy(buf, "power_up power_down\n", PAGE_SIZE);
++}
++
++static ssize_t power_sequence_write(struct device *dev,
++ struct device_attribute *attr,
++ const char *buf, size_t count)
++{
++ dev_dbg(dev, "wrote: '%s'\n", buf);
++
++ if (!strncmp(buf, "power_up", 8))
++ gps_power_sequence_up();
++ else if (!strncmp(buf, "power_down", 10))
++ gps_power_sequence_down();
++ else
++ return -EINVAL;
++
++ return count;
++}
++
++static DEVICE_ATTR(power_tcxo_2v8, 0644, power_gps_read, power_gps_write);
++static DEVICE_ATTR(power_avdd_3v, 0644, power_gps_read, power_gps_write);
++static DEVICE_ATTR(pwron, 0644, power_gps_read, power_gps_write);
++static DEVICE_ATTR(reset, 0644, power_gps_read, power_gps_write);
++static DEVICE_ATTR(power_lp_io_3v3, 0644, power_gps_read, power_gps_write);
++static DEVICE_ATTR(power_pll_core_2v5, 0644, power_gps_read, power_gps_write);
++static DEVICE_ATTR(power_core_1v5, 0644, power_gps_read, power_gps_write);
++static DEVICE_ATTR(power_vdd_core_1v5, 0644, power_gps_read, power_gps_write);
++static DEVICE_ATTR(power_sequence, 0644, power_sequence_read,
++ power_sequence_write);
++
++#ifdef CONFIG_PM
++static int gta01_pm_gps_suspend(struct platform_device *pdev,
++ pm_message_t state)
++{
++ /* FIXME */
++ gps_power_sequence_down();
++
++ return 0;
++}
++
++static int gta01_pm_gps_resume(struct platform_device *pdev)
++{
++ /* FIXME */
++ gps_power_sequence_up();
++
++ return 0;
++}
++#else
++#define gta01_pm_gps_suspend NULL
++#define gta01_pm_gps_resume NULL
++#endif
++
++static struct attribute *gta01_gps_sysfs_entries[] = {
++ &dev_attr_power_avdd_3v.attr,
++ &dev_attr_pwron.attr,
++ &dev_attr_reset.attr,
++ &dev_attr_power_lp_io_3v3.attr,
++ &dev_attr_power_pll_core_2v5.attr,
++ &dev_attr_power_sequence.attr,
++ NULL, /* power_core_1v5 */
++ NULL, /* power_vdd_core_1v5 */
++ NULL /* terminating entry */
++};
++
++static struct attribute_group gta01_gps_attr_group = {
++ .name = NULL,
++ .attrs = gta01_gps_sysfs_entries,
++};
++
++static int __init gta01_pm_gps_probe(struct platform_device *pdev)
++{
++ s3c2410_gpio_cfgpin(GTA01_GPIO_GPS_PWRON, S3C2410_GPIO_OUTPUT);
++
++ switch (system_rev) {
++ case GTA01v3_SYSTEM_REV:
++ break;
++ case GTA01v4_SYSTEM_REV:
++ s3c2410_gpio_cfgpin(GTA01_GPIO_GPS_RESET, S3C2410_GPIO_OUTPUT);
++ break;
++ case GTA01Bv3_SYSTEM_REV:
++ case GTA01Bv4_SYSTEM_REV:
++ s3c2410_gpio_cfgpin(GTA01_GPIO_GPS_EN_3V3, S3C2410_GPIO_OUTPUT);
++ /* fallthrough */
++ case GTA01Bv2_SYSTEM_REV:
++ s3c2410_gpio_cfgpin(GTA01_GPIO_GPS_EN_2V8, S3C2410_GPIO_OUTPUT);
++ s3c2410_gpio_cfgpin(GTA01_GPIO_GPS_EN_3V, S3C2410_GPIO_OUTPUT);
++ s3c2410_gpio_cfgpin(GTA01_GPIO_GPS_RESET, S3C2410_GPIO_OUTPUT);
++ break;
++ default:
++ dev_warn(&pdev->dev, "Unknown GTA01 Revision 0x%x, "
++ "AGPS PM features not available!!!\n",
++ system_rev);
++ return -1;
++ break;
++ }
++
++ gps_power_sequence_down();
++
++ switch (system_rev) {
++ case GTA01v3_SYSTEM_REV:
++ case GTA01v4_SYSTEM_REV:
++ case GTA01Bv2_SYSTEM_REV:
++ gta01_gps_sysfs_entries[ARRAY_SIZE(gta01_gps_sysfs_entries)-3] =
++ &dev_attr_power_tcxo_2v8.attr;
++ break;
++ case GTA01Bv3_SYSTEM_REV:
++ case GTA01Bv4_SYSTEM_REV:
++ gta01_gps_sysfs_entries[ARRAY_SIZE(gta01_gps_sysfs_entries)-3] =
++ &dev_attr_power_core_1v5.attr;
++ gta01_gps_sysfs_entries[ARRAY_SIZE(gta01_gps_sysfs_entries)-2] =
++ &dev_attr_power_vdd_core_1v5.attr;
++ break;
++ }
++
++ return sysfs_create_group(&pdev->dev.kobj, &gta01_gps_attr_group);
++}
++
++static int gta01_pm_gps_remove(struct platform_device *pdev)
++{
++ gps_power_sequence_down();
++ sysfs_remove_group(&pdev->dev.kobj, &gta01_gps_attr_group);
++
++ return 0;
++}
++
++static struct platform_driver gta01_pm_gps_driver = {
++ .probe = gta01_pm_gps_probe,
++ .remove = gta01_pm_gps_remove,
++ .suspend = gta01_pm_gps_suspend,
++ .resume = gta01_pm_gps_resume,
++ .driver = {
++ .name = "neo1973-pm-gps",
++ },
++};
++
++static int __devinit gta01_pm_gps_init(void)
++{
++ return platform_driver_register(&gta01_pm_gps_driver);
++}
++
++static void gta01_pm_gps_exit(void)
++{
++ platform_driver_unregister(&gta01_pm_gps_driver);
++}
++
++module_init(gta01_pm_gps_init);
++module_exit(gta01_pm_gps_exit);
++
++MODULE_LICENSE("GPL");
++MODULE_AUTHOR("Harald Welte <laforge@openmoko.org>");
++MODULE_DESCRIPTION("FIC Neo1973 GPS Power Management");
+diff --git a/arch/arm/plat-s3c24xx/neo1973_pm_gsm.c b/arch/arm/plat-s3c24xx/neo1973_pm_gsm.c
+new file mode 100644
+index 0000000..a1615f8
+--- /dev/null
++++ b/arch/arm/plat-s3c24xx/neo1973_pm_gsm.c
+@@ -0,0 +1,217 @@
++/*
++ * GSM Management code for the FIC Neo1973 GSM Phone
++ *
++ * (C) 2007 by OpenMoko Inc.
++ * Author: Harald Welte <laforge@openmoko.org>
++ * All rights reserved.
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License version 2 as
++ * published by the Free Software Foundation
++ *
++ */
++
++#include <linux/module.h>
++#include <linux/init.h>
++#include <linux/kernel.h>
++#include <linux/platform_device.h>
++#include <linux/console.h>
++#include <linux/errno.h>
++
++#include <asm/hardware.h>
++#include <asm/arch/gta01.h>
++
++struct gta01pm_priv {
++ int gpio_ngsm_en;
++ struct console *con;
++};
++
++static struct gta01pm_priv gta01_gsm;
++
++static struct console *find_s3c24xx_console(void)
++{
++ struct console *con;
++
++ acquire_console_sem();
++
++ for (con = console_drivers; con; con = con->next) {
++ if (!strcmp(con->name, "ttySAC"))
++ break;
++ }
++
++ release_console_sem();
++
++ return con;
++}
++
++static ssize_t gsm_read(struct device *dev, struct device_attribute *attr,
++ char *buf)
++{
++ if (!strcmp(attr->attr.name, "power_on")) {
++ if (s3c2410_gpio_getpin(GTA01_GPIO_MODEM_ON))
++ goto out_1;
++ } else if (!strcmp(attr->attr.name, "reset")) {
++ if (s3c2410_gpio_getpin(GTA01_GPIO_MODEM_RST))
++ goto out_1;
++ } else if (!strcmp(attr->attr.name, "download")) {
++ if (s3c2410_gpio_getpin(GTA01_GPIO_MODEM_DNLOAD))
++ goto out_1;
++ }
++
++ return strlcpy(buf, "0\n", 3);
++out_1:
++ return strlcpy(buf, "1\n", 3);
++}
++
++static ssize_t gsm_write(struct device *dev, struct device_attribute *attr,
++ const char *buf, size_t count)
++{
++ unsigned long on = simple_strtoul(buf, NULL, 10);
++
++ if (!strcmp(attr->attr.name, "power_on")) {
++ if (on) {
++ dev_info(dev, "powering up GSM, thus disconnecting "
++ "serial console\n");
++
++ if (gta01_gsm.con)
++ console_stop(gta01_gsm.con);
++
++ if (gta01_gsm.gpio_ngsm_en)
++ s3c2410_gpio_setpin(gta01_gsm.gpio_ngsm_en, 0);
++
++ s3c2410_gpio_setpin(GTA01_GPIO_MODEM_ON, 1);
++ } else {
++ s3c2410_gpio_setpin(GTA01_GPIO_MODEM_ON, 0);
++
++ if (gta01_gsm.gpio_ngsm_en)
++ s3c2410_gpio_setpin(gta01_gsm.gpio_ngsm_en, 1);
++
++ if (gta01_gsm.con)
++ console_start(gta01_gsm.con);
++
++ dev_info(dev, "powered down GSM, thus enabling "
++ "serial console\n");
++ }
++ } else if (!strcmp(attr->attr.name, "reset")) {
++ s3c2410_gpio_setpin(GTA01_GPIO_MODEM_RST, on);
++ } else if (!strcmp(attr->attr.name, "download")) {
++ s3c2410_gpio_setpin(GTA01_GPIO_MODEM_DNLOAD, on);
++ }
++
++ return count;
++}
++
++static DEVICE_ATTR(power_on, 0644, gsm_read, gsm_write);
++static DEVICE_ATTR(reset, 0644, gsm_read, gsm_write);
++static DEVICE_ATTR(download, 0644, gsm_read, gsm_write);
++
++#ifdef CONFIG_PM
++static int gta01_gsm_suspend(struct platform_device *pdev, pm_message_t state)
++{
++ /* GPIO state is saved/restored by S3C2410 core GPIO driver, so we
++ * don't need to do anything here */
++
++ return 0;
++}
++
++static int gta01_gsm_resume(struct platform_device *pdev)
++{
++ /* GPIO state is saved/restored by S3C2410 core GPIO driver, so we
++ * don't need to do anything here */
++
++ /* Make sure that the kernel console on the serial port is still
++ * disabled. FIXME: resume ordering race with serial driver! */
++ if (s3c2410_gpio_getpin(GTA01_GPIO_MODEM_ON) && gta01_gsm.con)
++ console_stop(gta01_gsm.con);
++
++ return 0;
++}
++#else
++#define gta01_gsm_suspend NULL
++#define gta01_gsm_resume NULL
++#endif
++
++static struct attribute *gta01_gsm_sysfs_entries[] = {
++ &dev_attr_power_on.attr,
++ &dev_attr_reset.attr,
++ NULL,
++ NULL
++};
++
++static struct attribute_group gta01_gsm_attr_group = {
++ .name = NULL,
++ .attrs = gta01_gsm_sysfs_entries,
++};
++
++static int __init gta01_gsm_probe(struct platform_device *pdev)
++{
++ switch (system_rev) {
++ case GTA01v3_SYSTEM_REV:
++ gta01_gsm.gpio_ngsm_en = GTA01v3_GPIO_nGSM_EN;
++ break;
++ case GTA01v4_SYSTEM_REV:
++ gta01_gsm.gpio_ngsm_en = 0;
++ break;
++ case GTA01Bv2_SYSTEM_REV:
++ case GTA01Bv3_SYSTEM_REV:
++ case GTA01Bv4_SYSTEM_REV:
++ gta01_gsm.gpio_ngsm_en = GTA01Bv2_GPIO_nGSM_EN;
++ s3c2410_gpio_setpin(GTA01v3_GPIO_nGSM_EN, 0);
++ break;
++ default:
++ dev_warn(&pdev->dev, "Unknown GTA01 Revision 0x%x, "
++ "some PM features not available!!!\n",
++ system_rev);
++ break;
++ }
++
++ switch (system_rev) {
++ case GTA01v4_SYSTEM_REV:
++ case GTA01Bv2_SYSTEM_REV:
++ gta01_gsm_sysfs_entries[ARRAY_SIZE(gta01_gsm_sysfs_entries)-2] =
++ &dev_attr_download.attr;
++ break;
++ default:
++ break;
++ }
++
++ gta01_gsm.con = find_s3c24xx_console();
++ if (!gta01_gsm.con)
++ dev_warn(&pdev->dev, "cannot find S3C24xx console driver\n");
++
++ return sysfs_create_group(&pdev->dev.kobj, &gta01_gsm_attr_group);
++}
++
++static int gta01_gsm_remove(struct platform_device *pdev)
++{
++ sysfs_remove_group(&pdev->dev.kobj, &gta01_gsm_attr_group);
++
++ return 0;
++}
++
++static struct platform_driver gta01_gsm_driver = {
++ .probe = gta01_gsm_probe,
++ .remove = gta01_gsm_remove,
++ .suspend = gta01_gsm_suspend,
++ .resume = gta01_gsm_resume,
++ .driver = {
++ .name = "neo1973-pm-gsm",
++ },
++};
++
++static int __devinit gta01_gsm_init(void)
++{
++ return platform_driver_register(&gta01_gsm_driver);
++}
++
++static void gta01_gsm_exit(void)
++{
++ platform_driver_unregister(&gta01_gsm_driver);
++}
++
++module_init(gta01_gsm_init);
++module_exit(gta01_gsm_exit);
++
++MODULE_LICENSE("GPL");
++MODULE_AUTHOR("Harald Welte <laforge@openmoko.org>");
++MODULE_DESCRIPTION("FIC Neo1973 GSM Power Management");
+--
+1.5.6.3
+
generated by cgit v1.1 at 2024-11-16 16:56:51 +0000