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Commit 5c9829bb authored by Patrick Mochel's avatar Patrick Mochel
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acpi: split sleep support into generic portion, and procfs-handlers.

parent 17f4b6e6
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Showing with 413 additions and 393 deletions
drivers/acpi/sleep/Makefile
View file @ 5c9829bb
obj-y := main.o obj-y := main.o
obj-$(CONFIG_PROC_FS) += proc.o
EXTRA_CFLAGS += $(ACPI_CFLAGS) EXTRA_CFLAGS += $(ACPI_CFLAGS)
drivers/acpi/sleep/main.c
View file @ 5c9829bb
...@@ -8,50 +8,25 @@ ...@@ -8,50 +8,25 @@
* Copyright (C) 2001, 2002 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com> * Copyright (C) 2001, 2002 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com>
*/ */
#include <linux/proc_fs.h> #include <linux/kernel.h>
#include <linux/sysrq.h> #include <linux/sysrq.h>
#include <linux/delay.h> #include <linux/delay.h>
#include <linux/irq.h> #include <linux/irq.h>
#include <linux/pm.h> #include <linux/pm.h>
#include <linux/device.h> #include <linux/device.h>
#include <linux/suspend.h> #include <linux/suspend.h>
#include <linux/seq_file.h>
#include <linux/bcd.h>
#include <asm/uaccess.h>
#include <asm/acpi.h> #include <asm/acpi.h>
#include <acpi/acpi_bus.h> #include <acpi/acpi_bus.h>
#include <acpi/acpi_drivers.h> #include <acpi/acpi_drivers.h>
#ifdef CONFIG_X86 #include "sleep.h"
#include <linux/mc146818rtc.h>
#endif
#define _COMPONENT ACPI_SYSTEM_COMPONENT #define _COMPONENT ACPI_SYSTEM_COMPONENT
ACPI_MODULE_NAME ("sleep") ACPI_MODULE_NAME ("sleep")
#define ACPI_SYSTEM_FILE_SLEEP "sleep" u8 sleep_states[ACPI_S_STATE_COUNT];
#define ACPI_SYSTEM_FILE_ALARM "alarm"
static int acpi_system_sleep_open_fs(struct inode *inode, struct file *file);
static int acpi_system_alarm_open_fs(struct inode *inode, struct file *file);
static u8 sleep_states[ACPI_S_STATE_COUNT];
static struct file_operations acpi_system_sleep_fops = {
.open = acpi_system_sleep_open_fs,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
};
static struct file_operations acpi_system_alarm_fops = {
.open = acpi_system_alarm_open_fs,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
};
static void static void
acpi_power_off (void) acpi_power_off (void)
...@@ -290,345 +265,6 @@ acpi_suspend ( ...@@ -290,345 +265,6 @@ acpi_suspend (
return status; return status;
} }
static int acpi_system_sleep_seq_show(struct seq_file *seq, void *offset)
{
int i;
ACPI_FUNCTION_TRACE("acpi_system_sleep_seq_show");
for (i = 0; i <= ACPI_STATE_S5; i++) {
if (sleep_states[i])
seq_printf(seq,"S%d ", i);
}
seq_puts(seq, "\n");
return 0;
}
static int acpi_system_sleep_open_fs(struct inode *inode, struct file *file)
{
return single_open(file, acpi_system_sleep_seq_show, PDE(inode)->data);
}
static int
acpi_system_write_sleep (
struct file *file,
const char *buffer,
size_t count,
loff_t *ppos)
{
acpi_status status = AE_ERROR;
char state_string[12] = {'\0'};
u32 state = 0;
ACPI_FUNCTION_TRACE("acpi_system_write_sleep");
if (count > sizeof(state_string) - 1)
goto Done;
if (copy_from_user(state_string, buffer, count))
return_VALUE(-EFAULT);
state_string[count] = '\0';
state = simple_strtoul(state_string, NULL, 0);
if (state < 1 || state > 4)
goto Done;
if (!sleep_states[state])
return_VALUE(-ENODEV);
#ifdef CONFIG_SOFTWARE_SUSPEND
if (state == 4) {
software_suspend();
goto Done;
}
#endif
status = acpi_suspend(state);
Done:
if (ACPI_FAILURE(status))
return_VALUE(-EINVAL);
else
return_VALUE(count);
}
static int acpi_system_alarm_seq_show(struct seq_file *seq, void *offset)
{
u32 sec, min, hr;
u32 day, mo, yr;
ACPI_FUNCTION_TRACE("acpi_system_alarm_seq_show");
spin_lock(&rtc_lock);
sec = CMOS_READ(RTC_SECONDS_ALARM);
min = CMOS_READ(RTC_MINUTES_ALARM);
hr = CMOS_READ(RTC_HOURS_ALARM);
#if 0 /* If we ever get an FACP with proper values... */
if (acpi_gbl_FADT->day_alrm)
day = CMOS_READ(acpi_gbl_FADT->day_alrm);
else
day = CMOS_READ(RTC_DAY_OF_MONTH);
if (acpi_gbl_FADT->mon_alrm)
mo = CMOS_READ(acpi_gbl_FADT->mon_alrm);
else
mo = CMOS_READ(RTC_MONTH);;
if (acpi_gbl_FADT->century)
yr = CMOS_READ(acpi_gbl_FADT->century) * 100 + CMOS_READ(RTC_YEAR);
else
yr = CMOS_READ(RTC_YEAR);
#else
day = CMOS_READ(RTC_DAY_OF_MONTH);
mo = CMOS_READ(RTC_MONTH);
yr = CMOS_READ(RTC_YEAR);
#endif
spin_unlock(&rtc_lock);
BCD_TO_BIN(sec);
BCD_TO_BIN(min);
BCD_TO_BIN(hr);
BCD_TO_BIN(day);
BCD_TO_BIN(mo);
BCD_TO_BIN(yr);
#if 0
/* we're trusting the FADT (see above)*/
#else
/* If we're not trusting the FADT, we should at least make it
* right for _this_ century... ehm, what is _this_ century?
*
* TBD:
* ASAP: find piece of code in the kernel, e.g. star tracker driver,
* which we can trust to determine the century correctly. Atom
* watch driver would be nice, too...
*
* if that has not happened, change for first release in 2050:
* if (yr<50)
* yr += 2100;
* else
* yr += 2000; // current line of code
*
* if that has not happened either, please do on 2099/12/31:23:59:59
* s/2000/2100
*
*/
yr += 2000;
#endif
seq_printf(seq,"%4.4u-", yr);
(mo > 12) ? seq_puts(seq, "**-") : seq_printf(seq, "%2.2u-", mo);
(day > 31) ? seq_puts(seq, "** ") : seq_printf(seq, "%2.2u ", day);
(hr > 23) ? seq_puts(seq, "**:") : seq_printf(seq, "%2.2u:", hr);
(min > 59) ? seq_puts(seq, "**:") : seq_printf(seq, "%2.2u:", min);
(sec > 59) ? seq_puts(seq, "**\n") : seq_printf(seq, "%2.2u\n", sec);
return 0;
}
static int acpi_system_alarm_open_fs(struct inode *inode, struct file *file)
{
return single_open(file, acpi_system_alarm_seq_show, PDE(inode)->data);
}
static int
get_date_field (
char **p,
u32 *value)
{
char *next = NULL;
char *string_end = NULL;
int result = -EINVAL;
/*
* Try to find delimeter, only to insert null. The end of the
* string won't have one, but is still valid.
*/
next = strpbrk(*p, "- :");
if (next)
*next++ = '\0';
*value = simple_strtoul(*p, &string_end, 10);
/* Signal success if we got a good digit */
if (string_end != *p)
result = 0;
if (next)
*p = next;
return result;
}
static int
acpi_system_write_alarm (
struct file *file,
const char *buffer,
size_t count,
loff_t *ppos)
{
int result = 0;
char alarm_string[30] = {'\0'};
char *p = alarm_string;
u32 sec, min, hr, day, mo, yr;
int adjust = 0;
unsigned char rtc_control = 0;
ACPI_FUNCTION_TRACE("acpi_system_write_alarm");
if (count > sizeof(alarm_string) - 1)
return_VALUE(-EINVAL);
if (copy_from_user(alarm_string, buffer, count))
return_VALUE(-EFAULT);
alarm_string[count] = '\0';
/* check for time adjustment */
if (alarm_string[0] == '+') {
p++;
adjust = 1;
}
if ((result = get_date_field(&p, &yr)))
goto end;
if ((result = get_date_field(&p, &mo)))
goto end;
if ((result = get_date_field(&p, &day)))
goto end;
if ((result = get_date_field(&p, &hr)))
goto end;
if ((result = get_date_field(&p, &min)))
goto end;
if ((result = get_date_field(&p, &sec)))
goto end;
if (sec > 59) {
min += 1;
sec -= 60;
}
if (min > 59) {
hr += 1;
min -= 60;
}
if (hr > 23) {
day += 1;
hr -= 24;
}
if (day > 31) {
mo += 1;
day -= 31;
}
if (mo > 12) {
yr += 1;
mo -= 12;
}
spin_lock_irq(&rtc_lock);
rtc_control = CMOS_READ(RTC_CONTROL);
if (!(rtc_control & RTC_DM_BINARY) || RTC_ALWAYS_BCD) {
BIN_TO_BCD(yr);
BIN_TO_BCD(mo);
BIN_TO_BCD(day);
BIN_TO_BCD(hr);
BIN_TO_BCD(min);
BIN_TO_BCD(sec);
}
if (adjust) {
yr += CMOS_READ(RTC_YEAR);
mo += CMOS_READ(RTC_MONTH);
day += CMOS_READ(RTC_DAY_OF_MONTH);
hr += CMOS_READ(RTC_HOURS);
min += CMOS_READ(RTC_MINUTES);
sec += CMOS_READ(RTC_SECONDS);
}
spin_unlock_irq(&rtc_lock);
if (!(rtc_control & RTC_DM_BINARY) || RTC_ALWAYS_BCD) {
BCD_TO_BIN(yr);
BCD_TO_BIN(mo);
BCD_TO_BIN(day);
BCD_TO_BIN(hr);
BCD_TO_BIN(min);
BCD_TO_BIN(sec);
}
if (sec > 59) {
min++;
sec -= 60;
}
if (min > 59) {
hr++;
min -= 60;
}
if (hr > 23) {
day++;
hr -= 24;
}
if (day > 31) {
mo++;
day -= 31;
}
if (mo > 12) {
yr++;
mo -= 12;
}
if (!(rtc_control & RTC_DM_BINARY) || RTC_ALWAYS_BCD) {
BIN_TO_BCD(yr);
BIN_TO_BCD(mo);
BIN_TO_BCD(day);
BIN_TO_BCD(hr);
BIN_TO_BCD(min);
BIN_TO_BCD(sec);
}
spin_lock_irq(&rtc_lock);
/* write the fields the rtc knows about */
CMOS_WRITE(hr, RTC_HOURS_ALARM);
CMOS_WRITE(min, RTC_MINUTES_ALARM);
CMOS_WRITE(sec, RTC_SECONDS_ALARM);
/*
* If the system supports an enhanced alarm it will have non-zero
* offsets into the CMOS RAM here -- which for some reason are pointing
* to the RTC area of memory.
*/
#if 0
if (acpi_gbl_FADT->day_alrm)
CMOS_WRITE(day, acpi_gbl_FADT->day_alrm);
if (acpi_gbl_FADT->mon_alrm)
CMOS_WRITE(mo, acpi_gbl_FADT->mon_alrm);
if (acpi_gbl_FADT->century)
CMOS_WRITE(yr/100, acpi_gbl_FADT->century);
#endif
/* enable the rtc alarm interrupt */
if (!(rtc_control & RTC_AIE)) {
rtc_control |= RTC_AIE;
CMOS_WRITE(rtc_control,RTC_CONTROL);
CMOS_READ(RTC_INTR_FLAGS);
}
spin_unlock_irq(&rtc_lock);
acpi_set_register(ACPI_BITREG_RT_CLOCK_ENABLE, 1, ACPI_MTX_LOCK);
file->f_pos += count;
result = 0;
end:
return_VALUE(result ? result : count);
}
#if defined(CONFIG_MAGIC_SYSRQ) && defined(CONFIG_PM) #if defined(CONFIG_MAGIC_SYSRQ) && defined(CONFIG_PM)
/* Simple wrapper calling power down function. */ /* Simple wrapper calling power down function. */
...@@ -648,7 +284,6 @@ struct sysrq_key_op sysrq_acpi_poweroff_op = { ...@@ -648,7 +284,6 @@ struct sysrq_key_op sysrq_acpi_poweroff_op = {
static int __init acpi_sleep_init(void) static int __init acpi_sleep_init(void)
{ {
struct proc_dir_entry *entry = NULL;
acpi_status status = AE_OK; acpi_status status = AE_OK;
int i = 0; int i = 0;
...@@ -668,30 +303,7 @@ static int __init acpi_sleep_init(void) ...@@ -668,30 +303,7 @@ static int __init acpi_sleep_init(void)
} }
printk(")\n"); printk(")\n");
acpi_sleep_proc_init();
/* 'sleep' [R/W]*/
entry = create_proc_entry(ACPI_SYSTEM_FILE_SLEEP,
S_IFREG|S_IRUGO|S_IWUSR, acpi_root_dir);
if (!entry)
ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
"Unable to create '%s' fs entry\n",
ACPI_SYSTEM_FILE_SLEEP));
else {
entry->proc_fops = &acpi_system_sleep_fops;
entry->proc_fops->write = acpi_system_write_sleep;
}
/* 'alarm' [R/W] */
entry = create_proc_entry(ACPI_SYSTEM_FILE_ALARM,
S_IFREG|S_IRUGO|S_IWUSR, acpi_root_dir);
if (!entry)
ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
"Unable to create '%s' fs entry\n",
ACPI_SYSTEM_FILE_ALARM));
else {
entry->proc_fops = &acpi_system_alarm_fops;
entry->proc_fops->write = acpi_system_write_alarm;
}
/* Install the soft-off (S5) handler. */ /* Install the soft-off (S5) handler. */
if (sleep_states[ACPI_STATE_S5]) { if (sleep_states[ACPI_STATE_S5]) {
......
drivers/acpi/sleep/proc.c 0 → 100644
View file @ 5c9829bb
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#include <linux/suspend.h>
#include <linux/bcd.h>
#include <asm/uaccess.h>
#include <acpi/acpi_bus.h>
#ifdef CONFIG_X86
#include <linux/mc146818rtc.h>
#endif
#include "sleep.h"
#define ACPI_SYSTEM_FILE_SLEEP "sleep"
#define ACPI_SYSTEM_FILE_ALARM "alarm"
#define _COMPONENT ACPI_SYSTEM_COMPONENT
ACPI_MODULE_NAME ("sleep")
static int acpi_system_sleep_seq_show(struct seq_file *seq, void *offset)
{
int i;
ACPI_FUNCTION_TRACE("acpi_system_sleep_seq_show");
for (i = 0; i <= ACPI_STATE_S5; i++) {
if (sleep_states[i])
seq_printf(seq,"S%d ", i);
}
seq_puts(seq, "\n");
return 0;
}
static int acpi_system_sleep_open_fs(struct inode *inode, struct file *file)
{
return single_open(file, acpi_system_sleep_seq_show, PDE(inode)->data);
}
static int
acpi_system_write_sleep (
struct file *file,
const char *buffer,
size_t count,
loff_t *ppos)
{
acpi_status status = AE_ERROR;
char state_string[12] = {'\0'};
u32 state = 0;
ACPI_FUNCTION_TRACE("acpi_system_write_sleep");
if (count > sizeof(state_string) - 1)
goto Done;
if (copy_from_user(state_string, buffer, count))
return_VALUE(-EFAULT);
state_string[count] = '\0';
state = simple_strtoul(state_string, NULL, 0);
if (state < 1 || state > 4)
goto Done;
if (!sleep_states[state])
return_VALUE(-ENODEV);
#ifdef CONFIG_SOFTWARE_SUSPEND
if (state == 4) {
software_suspend();
goto Done;
}
#endif
status = acpi_suspend(state);
Done:
if (ACPI_FAILURE(status))
return_VALUE(-EINVAL);
else
return_VALUE(count);
}
static int acpi_system_alarm_seq_show(struct seq_file *seq, void *offset)
{
u32 sec, min, hr;
u32 day, mo, yr;
ACPI_FUNCTION_TRACE("acpi_system_alarm_seq_show");
spin_lock(&rtc_lock);
sec = CMOS_READ(RTC_SECONDS_ALARM);
min = CMOS_READ(RTC_MINUTES_ALARM);
hr = CMOS_READ(RTC_HOURS_ALARM);
#if 0 /* If we ever get an FACP with proper values... */
if (acpi_gbl_FADT->day_alrm)
day = CMOS_READ(acpi_gbl_FADT->day_alrm);
else
day = CMOS_READ(RTC_DAY_OF_MONTH);
if (acpi_gbl_FADT->mon_alrm)
mo = CMOS_READ(acpi_gbl_FADT->mon_alrm);
else
mo = CMOS_READ(RTC_MONTH);;
if (acpi_gbl_FADT->century)
yr = CMOS_READ(acpi_gbl_FADT->century) * 100 + CMOS_READ(RTC_YEAR);
else
yr = CMOS_READ(RTC_YEAR);
#else
day = CMOS_READ(RTC_DAY_OF_MONTH);
mo = CMOS_READ(RTC_MONTH);
yr = CMOS_READ(RTC_YEAR);
#endif
spin_unlock(&rtc_lock);
BCD_TO_BIN(sec);
BCD_TO_BIN(min);
BCD_TO_BIN(hr);
BCD_TO_BIN(day);
BCD_TO_BIN(mo);
BCD_TO_BIN(yr);
#if 0
/* we're trusting the FADT (see above)*/
#else
/* If we're not trusting the FADT, we should at least make it
* right for _this_ century... ehm, what is _this_ century?
*
* TBD:
* ASAP: find piece of code in the kernel, e.g. star tracker driver,
* which we can trust to determine the century correctly. Atom
* watch driver would be nice, too...
*
* if that has not happened, change for first release in 2050:
* if (yr<50)
* yr += 2100;
* else
* yr += 2000; // current line of code
*
* if that has not happened either, please do on 2099/12/31:23:59:59
* s/2000/2100
*
*/
yr += 2000;
#endif
seq_printf(seq,"%4.4u-", yr);
(mo > 12) ? seq_puts(seq, "**-") : seq_printf(seq, "%2.2u-", mo);
(day > 31) ? seq_puts(seq, "** ") : seq_printf(seq, "%2.2u ", day);
(hr > 23) ? seq_puts(seq, "**:") : seq_printf(seq, "%2.2u:", hr);
(min > 59) ? seq_puts(seq, "**:") : seq_printf(seq, "%2.2u:", min);
(sec > 59) ? seq_puts(seq, "**\n") : seq_printf(seq, "%2.2u\n", sec);
return 0;
}
static int acpi_system_alarm_open_fs(struct inode *inode, struct file *file)
{
return single_open(file, acpi_system_alarm_seq_show, PDE(inode)->data);
}
static int
get_date_field (
char **p,
u32 *value)
{
char *next = NULL;
char *string_end = NULL;
int result = -EINVAL;
/*
* Try to find delimeter, only to insert null. The end of the
* string won't have one, but is still valid.
*/
next = strpbrk(*p, "- :");
if (next)
*next++ = '\0';
*value = simple_strtoul(*p, &string_end, 10);
/* Signal success if we got a good digit */
if (string_end != *p)
result = 0;
if (next)
*p = next;
return result;
}
static int
acpi_system_write_alarm (
struct file *file,
const char *buffer,
size_t count,
loff_t *ppos)
{
int result = 0;
char alarm_string[30] = {'\0'};
char *p = alarm_string;
u32 sec, min, hr, day, mo, yr;
int adjust = 0;
unsigned char rtc_control = 0;
ACPI_FUNCTION_TRACE("acpi_system_write_alarm");
if (count > sizeof(alarm_string) - 1)
return_VALUE(-EINVAL);
if (copy_from_user(alarm_string, buffer, count))
return_VALUE(-EFAULT);
alarm_string[count] = '\0';
/* check for time adjustment */
if (alarm_string[0] == '+') {
p++;
adjust = 1;
}
if ((result = get_date_field(&p, &yr)))
goto end;
if ((result = get_date_field(&p, &mo)))
goto end;
if ((result = get_date_field(&p, &day)))
goto end;
if ((result = get_date_field(&p, &hr)))
goto end;
if ((result = get_date_field(&p, &min)))
goto end;
if ((result = get_date_field(&p, &sec)))
goto end;
if (sec > 59) {
min += 1;
sec -= 60;
}
if (min > 59) {
hr += 1;
min -= 60;
}
if (hr > 23) {
day += 1;
hr -= 24;
}
if (day > 31) {
mo += 1;
day -= 31;
}
if (mo > 12) {
yr += 1;
mo -= 12;
}
spin_lock_irq(&rtc_lock);
rtc_control = CMOS_READ(RTC_CONTROL);
if (!(rtc_control & RTC_DM_BINARY) || RTC_ALWAYS_BCD) {
BIN_TO_BCD(yr);
BIN_TO_BCD(mo);
BIN_TO_BCD(day);
BIN_TO_BCD(hr);
BIN_TO_BCD(min);
BIN_TO_BCD(sec);
}
if (adjust) {
yr += CMOS_READ(RTC_YEAR);
mo += CMOS_READ(RTC_MONTH);
day += CMOS_READ(RTC_DAY_OF_MONTH);
hr += CMOS_READ(RTC_HOURS);
min += CMOS_READ(RTC_MINUTES);
sec += CMOS_READ(RTC_SECONDS);
}
spin_unlock_irq(&rtc_lock);
if (!(rtc_control & RTC_DM_BINARY) || RTC_ALWAYS_BCD) {
BCD_TO_BIN(yr);
BCD_TO_BIN(mo);
BCD_TO_BIN(day);
BCD_TO_BIN(hr);
BCD_TO_BIN(min);
BCD_TO_BIN(sec);
}
if (sec > 59) {
min++;
sec -= 60;
}
if (min > 59) {
hr++;
min -= 60;
}
if (hr > 23) {
day++;
hr -= 24;
}
if (day > 31) {
mo++;
day -= 31;
}
if (mo > 12) {
yr++;
mo -= 12;
}
if (!(rtc_control & RTC_DM_BINARY) || RTC_ALWAYS_BCD) {
BIN_TO_BCD(yr);
BIN_TO_BCD(mo);
BIN_TO_BCD(day);
BIN_TO_BCD(hr);
BIN_TO_BCD(min);
BIN_TO_BCD(sec);
}
spin_lock_irq(&rtc_lock);
/* write the fields the rtc knows about */
CMOS_WRITE(hr, RTC_HOURS_ALARM);
CMOS_WRITE(min, RTC_MINUTES_ALARM);
CMOS_WRITE(sec, RTC_SECONDS_ALARM);
/*
* If the system supports an enhanced alarm it will have non-zero
* offsets into the CMOS RAM here -- which for some reason are pointing
* to the RTC area of memory.
*/
#if 0
if (acpi_gbl_FADT->day_alrm)
CMOS_WRITE(day, acpi_gbl_FADT->day_alrm);
if (acpi_gbl_FADT->mon_alrm)
CMOS_WRITE(mo, acpi_gbl_FADT->mon_alrm);
if (acpi_gbl_FADT->century)
CMOS_WRITE(yr/100, acpi_gbl_FADT->century);
#endif
/* enable the rtc alarm interrupt */
if (!(rtc_control & RTC_AIE)) {
rtc_control |= RTC_AIE;
CMOS_WRITE(rtc_control,RTC_CONTROL);
CMOS_READ(RTC_INTR_FLAGS);
}
spin_unlock_irq(&rtc_lock);
acpi_set_register(ACPI_BITREG_RT_CLOCK_ENABLE, 1, ACPI_MTX_LOCK);
file->f_pos += count;
result = 0;
end:
return_VALUE(result ? result : count);
}
static struct file_operations acpi_system_sleep_fops = {
.open = acpi_system_sleep_open_fs,
.read = seq_read,
.write = acpi_system_write_sleep,
.llseek = seq_lseek,
.release = single_release,
};
static struct file_operations acpi_system_alarm_fops = {
.open = acpi_system_alarm_open_fs,
.read = seq_read,
.write = acpi_system_write_alarm,
.llseek = seq_lseek,
.release = single_release,
};
int acpi_sleep_proc_init(void)
{
struct proc_dir_entry *entry = NULL;
/* 'sleep' [R/W]*/
entry = create_proc_entry(ACPI_SYSTEM_FILE_SLEEP,
S_IFREG|S_IRUGO|S_IWUSR, acpi_root_dir);
if (entry)
entry->proc_fops = &acpi_system_sleep_fops;
/* 'alarm' [R/W] */
entry = create_proc_entry(ACPI_SYSTEM_FILE_ALARM,
S_IFREG|S_IRUGO|S_IWUSR, acpi_root_dir);
if (entry)
entry->proc_fops = &acpi_system_alarm_fops;
return 0;
}
drivers/acpi/sleep/sleep.h 0 → 100644
View file @ 5c9829bb
extern u8 sleep_states[];
extern acpi_status acpi_suspend (u32 state);
#ifdef CONFIG_PROC_FS
extern int acpi_sleep_proc_init(void);
#else
static inline int acpi_sleep_proc_init(void)
{
return 0;
}
#endif
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