From 919ad8a33847d10bb2b6b4f9bb24702346455f1f Mon Sep 17 00:00:00 2001 From: Timo Juhani Lindfors Date: Fri, 7 Jan 2011 16:14:29 +0100 Subject: [PATCH 53/69] Openmoko resume reason sysfs node ported from 2.6.29 Signed-off-by: Martin Jansa --- arch/arm/mach-s3c2440/mach-gta02.c | 5 + drivers/misc/Kconfig | 7 ++ drivers/misc/Makefile | 1 + drivers/misc/neo1973_pm_resume_reason.c | 142 +++++++++++++++++++++++++++++++ 4 files changed, 155 insertions(+), 0 deletions(-) create mode 100644 drivers/misc/neo1973_pm_resume_reason.c diff --git a/arch/arm/mach-s3c2440/mach-gta02.c b/arch/arm/mach-s3c2440/mach-gta02.c index aa31b8d..c784535 100644 --- a/arch/arm/mach-s3c2440/mach-gta02.c +++ b/arch/arm/mach-s3c2440/mach-gta02.c @@ -127,6 +127,10 @@ static long gta02_panic_blink(int state) return delay; } +struct platform_device gta02_resume_reason_device = { + .name = "neo1973-resume", + .num_resources = 0, +}; static struct map_desc gta02_iodesc[] __initdata = { { @@ -1053,6 +1057,7 @@ static struct platform_device *gta02_devices[] __initdata = { static struct platform_device *gta02_devices_pmu_children[] = { >a02_hdq_device, >a02_platform_bat, + >a02_resume_reason_device, }; diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig index 4e007c6..c3f53c7 100644 --- a/drivers/misc/Kconfig +++ b/drivers/misc/Kconfig @@ -475,6 +475,13 @@ config PCH_PHUB To compile this driver as a module, choose M here: the module will be called pch_phub. +config OPENMOKO_RESUME_REASON + tristate "Openmoko resume reason driver" + depends on SYSFS + help + This driver adds a sysfs entry for accessing the resume reason + of the openmoko board. + source "drivers/misc/c2port/Kconfig" source "drivers/misc/eeprom/Kconfig" source "drivers/misc/cb710/Kconfig" diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile index f546860..702855a 100644 --- a/drivers/misc/Makefile +++ b/drivers/misc/Makefile @@ -43,4 +43,5 @@ obj-$(CONFIG_ARM_CHARLCD) += arm-charlcd.o obj-$(CONFIG_PCH_PHUB) += pch_phub.o obj-y += ti-st/ obj-$(CONFIG_AB8500_PWM) += ab8500-pwm.o +obj-$(CONFIG_OPENMOKO_RESUME_REASON) += neo1973_pm_resume_reason.o obj-y += lis3lv02d/ diff --git a/drivers/misc/neo1973_pm_resume_reason.c b/drivers/misc/neo1973_pm_resume_reason.c new file mode 100644 index 0000000..5bcc818 --- /dev/null +++ b/drivers/misc/neo1973_pm_resume_reason.c @@ -0,0 +1,142 @@ +/* + * Resume reason sysfs for the FIC Neo1973 GSM Phone + * + * (C) 2008 by Openmoko Inc. + * Author: Andy Green + * 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 resume_reason 2 as + * published by the Free Software Foundation + * + */ + +#include +#include +#include +#include +#include + +#include +#include + +#ifdef CONFIG_MACH_NEO1973_GTA02 +#include +#include +#endif + +static unsigned int *gstatus4_mapped; +static char *resume_reasons[][17] = { { /* GTA01 */ + "EINT00_NULL", + "EINT01_GSM", + "EINT02_NULL", + "EINT03_NULL", + "EINT04_JACK", + "EINT05_SDCARD", + "EINT06_AUXKEY", + "EINT07_HOLDKEY", + "EINT08_NULL", + "EINT09_NULL", + "EINT10_NULL", + "EINT11_NULL", + "EINT12_NULL", + "EINT13_NULL", + "EINT14_NULL", + "EINT15_NULL", + NULL +}, { /* GTA02 */ + "EINT00_ACCEL1", + "EINT01_GSM", + "EINT02_BLUETOOTH", + "EINT03_DEBUGBRD", + "EINT04_JACK", + "EINT05_WLAN", + "EINT06_AUXKEY", + "EINT07_HOLDKEY", + "EINT08_ACCEL2", + "EINT09_PMU", + "EINT10_NULL", + "EINT11_NULL", + "EINT12_GLAMO", + "EINT13_NULL", + "EINT14_NULL", + "EINT15_NULL", + NULL +} }; + +static ssize_t resume_reason_read(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + int bit = 0; + char *end = buf; + int gta = !!machine_is_neo1973_gta02(); + + for (bit = 0; resume_reasons[gta][bit]; bit++) { + if ((*gstatus4_mapped) & (1 << bit)) + end += sprintf(end, "* %s\n", resume_reasons[gta][bit]); + else + end += sprintf(end, " %s\n", resume_reasons[gta][bit]); + } + + return end - buf; +} + + +static DEVICE_ATTR(resume_reason, 0644, resume_reason_read, NULL); + +static struct attribute *neo1973_resume_reason_sysfs_entries[] = { + &dev_attr_resume_reason.attr, + NULL +}; + +static struct attribute_group neo1973_resume_reason_attr_group = { + .name = NULL, + .attrs = neo1973_resume_reason_sysfs_entries, +}; + +static int __init neo1973_resume_reason_probe(struct platform_device *pdev) +{ + dev_info(&pdev->dev, "starting\n"); + + gstatus4_mapped = ioremap(0x560000BC /* GSTATUS4 */, 0x4); + if (!gstatus4_mapped) { + dev_err(&pdev->dev, "failed to ioremap() memory region\n"); + return -EINVAL; + } + + return sysfs_create_group(&pdev->dev.kobj, + &neo1973_resume_reason_attr_group); +} + +static int neo1973_resume_reason_remove(struct platform_device *pdev) +{ + sysfs_remove_group(&pdev->dev.kobj, &neo1973_resume_reason_attr_group); + iounmap(gstatus4_mapped); + return 0; +} + +static struct platform_driver neo1973_resume_reason_driver = { + .probe = neo1973_resume_reason_probe, + .remove = neo1973_resume_reason_remove, + .driver = { + .name = "neo1973-resume", + }, +}; + +static int __devinit neo1973_resume_reason_init(void) +{ + return platform_driver_register(&neo1973_resume_reason_driver); +} + +static void neo1973_resume_reason_exit(void) +{ + platform_driver_unregister(&neo1973_resume_reason_driver); +} + +module_init(neo1973_resume_reason_init); +module_exit(neo1973_resume_reason_exit); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Andy Green "); +MODULE_DESCRIPTION("Neo1973 resume_reason"); -- 1.7.2.5