diff options
author | juhosg <juhosg@3c298f89-4303-0410-b956-a3cf2f4a3e73> | 2012-12-18 17:54:02 +0000 |
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committer | juhosg <juhosg@3c298f89-4303-0410-b956-a3cf2f4a3e73> | 2012-12-18 17:54:02 +0000 |
commit | 82661f4b0ebe2c4173d178e94d529505458f8e0e (patch) | |
tree | 29177c3a256af17d3c3263f478b96f59baca9b1c /target/linux/s3c24xx/files-2.6.30/arch/arm/mach-s3c2442/gta02-pm-gsm.c | |
parent | 13e1228de3690c8c831b9cccbe5a34674e743362 (diff) |
s3c2442: R.I.P.
It is broken and it is not maintained by anyone since long time.
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@34767 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/s3c24xx/files-2.6.30/arch/arm/mach-s3c2442/gta02-pm-gsm.c')
-rw-r--r-- | target/linux/s3c24xx/files-2.6.30/arch/arm/mach-s3c2442/gta02-pm-gsm.c | 317 |
1 files changed, 0 insertions, 317 deletions
diff --git a/target/linux/s3c24xx/files-2.6.30/arch/arm/mach-s3c2442/gta02-pm-gsm.c b/target/linux/s3c24xx/files-2.6.30/arch/arm/mach-s3c2442/gta02-pm-gsm.c deleted file mode 100644 index 687b260e1..000000000 --- a/target/linux/s3c24xx/files-2.6.30/arch/arm/mach-s3c2442/gta02-pm-gsm.c +++ /dev/null @@ -1,317 +0,0 @@ -/* - * GSM Management code for the Openmoko Freerunner 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 <linux/interrupt.h> -#include <linux/delay.h> - -#include <mach/gpio.h> -#include <asm/mach-types.h> - -#include <mach/hardware.h> -#include <mach/cpu.h> - -#include <mach/gta02.h> -#include <linux/mfd/pcf50633/gpio.h> -#include <mach/regs-gpio.h> -#include <mach/regs-gpioj.h> - -int gta_gsm_interrupts; -EXPORT_SYMBOL(gta_gsm_interrupts); - -extern void s3c24xx_serial_console_set_silence(int); - -struct gta02pm_priv { - int gpio_ndl_gsm; - struct console *con; -}; - -static struct gta02pm_priv gta02_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 (pcf50633_gpio_get(gta02_pcf, PCF50633_GPIO2)) - goto out_1; - } else if (!strcmp(attr->attr.name, "download")) { - if (!s3c2410_gpio_getpin(GTA02_GPIO_nDL_GSM)) - goto out_1; - } else if (!strcmp(attr->attr.name, "flowcontrolled")) { - if (s3c2410_gpio_getcfg(S3C2410_GPH1) == S3C2410_GPIO_OUTPUT) - goto out_1; - } - - return strlcpy(buf, "0\n", 3); -out_1: - return strlcpy(buf, "1\n", 3); -} - -static void gsm_on_off(struct device *dev, int on) -{ - if (!on) { - s3c2410_gpio_cfgpin(S3C2410_GPH1, S3C2410_GPIO_INPUT); - s3c2410_gpio_cfgpin(S3C2410_GPH2, S3C2410_GPIO_INPUT); - - pcf50633_gpio_set(gta02_pcf, PCF50633_GPIO2, 0); - - if (gta02_gsm.con) { - s3c24xx_serial_console_set_silence(0); - console_start(gta02_gsm.con); - - dev_dbg(dev, "powered down gta02 GSM, enabling " - "serial console\n"); - } - - return; - } - - if (gta02_gsm.con) { - dev_dbg(dev, "powering up GSM, thus " - "disconnecting serial console\n"); - - console_stop(gta02_gsm.con); - s3c24xx_serial_console_set_silence(1); - } - - /* allow UART to talk to GSM side now we will power it */ - s3c2410_gpio_cfgpin(S3C2410_GPH1, S3C2410_GPH1_nRTS0); - s3c2410_gpio_cfgpin(S3C2410_GPH2, S3C2410_GPH2_TXD0); - - pcf50633_gpio_set(gta02_pcf, PCF50633_GPIO2, 7); - - msleep(100); - - s3c2410_gpio_setpin(GTA02_GPIO_MODEM_ON, 1); - msleep(500); - s3c2410_gpio_setpin(GTA02_GPIO_MODEM_ON, 0); - - /* - * workaround for calypso firmware moko10 and earlier, - * without this it will leave IRQ line high after - * booting - */ - s3c2410_gpio_setpin(S3C2410_GPH1, 1); - s3c2410_gpio_cfgpin(S3C2410_GPH1, S3C2410_GPH1_OUTP); - msleep(1000); - s3c2410_gpio_cfgpin(S3C2410_GPH1, S3C2410_GPH1_nRTS0); - -} - -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")) { - gsm_on_off(dev, on); - - return count; - } - - if (!strcmp(attr->attr.name, "download")) { - /* - * the keyboard / buttons driver requests and enables - * the JACK_INSERT IRQ. We have to take care about - * not enabling and disabling the IRQ when it was - * already in that state or we get "unblanaced IRQ" - * kernel warnings and stack dumps. So we use the - * copy of the ndl_gsm state to figure out if we should - * enable or disable the jack interrupt - */ - if (on) { - if (gta02_gsm.gpio_ndl_gsm) - disable_irq(gpio_to_irq( - GTA02_GPIO_JACK_INSERT)); - } else { - if (!gta02_gsm.gpio_ndl_gsm) - enable_irq(gpio_to_irq( - GTA02_GPIO_JACK_INSERT)); - } - - gta02_gsm.gpio_ndl_gsm = !on; - s3c2410_gpio_setpin(GTA02_GPIO_nDL_GSM, !on); - - return count; - } - - if (!strcmp(attr->attr.name, "flowcontrolled")) { - if (on) { - gta_gsm_interrupts = 0; - s3c2410_gpio_setpin(S3C2410_GPH1, 1); - s3c2410_gpio_cfgpin(S3C2410_GPH1, S3C2410_GPH1_OUTP); - } else - s3c2410_gpio_cfgpin(S3C2410_GPH1, S3C2410_GPH1_nRTS0); - } - - 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); -static DEVICE_ATTR(flowcontrolled, 0644, gsm_read, gsm_write); - -#ifdef CONFIG_PM - -static int gta02_gsm_resume(struct platform_device *pdev); -static int gta02_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 much here. */ - - /* If flowcontrol asserted, abort if GSM already interrupted */ - if (s3c2410_gpio_getcfg(S3C2410_GPH1) == S3C2410_GPIO_OUTPUT) { - if (gta_gsm_interrupts) - goto busy; - } - - /* disable DL GSM to prevent jack_insert becoming 'floating' */ - s3c2410_gpio_setpin(GTA02_GPIO_nDL_GSM, 1); - return 0; - -busy: - return -EBUSY; -} - -static int -gta02_gsm_suspend_late(struct platform_device *pdev, pm_message_t state) -{ - /* Last chance: abort if GSM already interrupted */ - if (s3c2410_gpio_getcfg(S3C2410_GPH1) == S3C2410_GPIO_OUTPUT) { - if (gta_gsm_interrupts) - return -EBUSY; - } - return 0; -} - -static int gta02_gsm_resume(struct platform_device *pdev) -{ - /* GPIO state is saved/restored by S3C2410 core GPIO driver, so we - * don't need to do much here. */ - - /* Make sure that the kernel console on the serial port is still - * disabled. FIXME: resume ordering race with serial driver! */ - if (gta02_gsm.con && s3c2410_gpio_getpin(GTA02_GPIO_MODEM_ON)) - console_stop(gta02_gsm.con); - - s3c2410_gpio_setpin(GTA02_GPIO_nDL_GSM, gta02_gsm.gpio_ndl_gsm); - - return 0; -} -#else -#define gta02_gsm_suspend NULL -#define gta02_gsm_suspend_late NULL -#define gta02_gsm_resume NULL -#endif /* CONFIG_PM */ - -static struct attribute *gta02_gsm_sysfs_entries[] = { - &dev_attr_power_on.attr, - &dev_attr_reset.attr, - &dev_attr_download.attr, - &dev_attr_flowcontrolled.attr, - NULL -}; - -static struct attribute_group gta02_gsm_attr_group = { - .name = NULL, - .attrs = gta02_gsm_sysfs_entries, -}; - -static int __init gta02_gsm_probe(struct platform_device *pdev) -{ - switch (S3C_SYSTEM_REV_ATAG) { - case GTA02v1_SYSTEM_REV: - case GTA02v2_SYSTEM_REV: - case GTA02v3_SYSTEM_REV: - case GTA02v4_SYSTEM_REV: - case GTA02v5_SYSTEM_REV: - case GTA02v6_SYSTEM_REV: - break; - default: - dev_warn(&pdev->dev, "Unknown Freerunner Revision 0x%x, " - "some PM features not available!!!\n", - system_rev); - break; - } - - gta02_gsm.con = find_s3c24xx_console(); - if (!gta02_gsm.con) - dev_warn(&pdev->dev, - "cannot find S3C24xx console driver\n"); - - /* note that download initially disabled, and enforce that */ - gta02_gsm.gpio_ndl_gsm = 1; - s3c2410_gpio_setpin(GTA02_GPIO_nDL_GSM, 1); - - /* GSM is to be initially off (at boot, or if this module inserted) */ - gsm_on_off(&pdev->dev, 0); - - return sysfs_create_group(&pdev->dev.kobj, >a02_gsm_attr_group); -} - -static int gta02_gsm_remove(struct platform_device *pdev) -{ - sysfs_remove_group(&pdev->dev.kobj, >a02_gsm_attr_group); - - return 0; -} - -static struct platform_driver gta02_gsm_driver = { - .probe = gta02_gsm_probe, - .remove = gta02_gsm_remove, - .suspend = gta02_gsm_suspend, - .suspend_late = gta02_gsm_suspend_late, - .resume = gta02_gsm_resume, - .driver = { - .name = "gta02-pm-gsm", - }, -}; - -static int __devinit gta02_gsm_init(void) -{ - return platform_driver_register(>a02_gsm_driver); -} - -static void gta02_gsm_exit(void) -{ - platform_driver_unregister(>a02_gsm_driver); -} - -module_init(gta02_gsm_init); -module_exit(gta02_gsm_exit); - -MODULE_LICENSE("GPL"); -MODULE_AUTHOR("Harald Welte <laforge@openmoko.org>"); -MODULE_DESCRIPTION("Openmoko Freerunner GSM Power Management"); |