[ACPI] ACPI poweroff fix
Register an "acpi" system device to be notified of shutdown preparation.
This depends on CONFIG_PM
http://bugzilla.kernel.org/show_bug.cgi?id=4041
Signed-off-by: Alexey Starikovskiy <alexey.y.starikovskiy@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Len Brown <len.brown@intel.com>
diff --git a/drivers/acpi/sleep/main.c b/drivers/acpi/sleep/main.c
index 0a5d2a9..7249ba2 100644
--- a/drivers/acpi/sleep/main.c
+++ b/drivers/acpi/sleep/main.c
@@ -1,6 +1,7 @@
/*
* sleep.c - ACPI sleep support.
*
+ * Copyright (c) 2005 Alexey Starikovskiy <alexey.y.starikovskiy@intel.com>
* Copyright (c) 2004 David Shaohua Li <shaohua.li@intel.com>
* Copyright (c) 2000-2003 Patrick Mochel
* Copyright (c) 2003 Open Source Development Lab
@@ -14,7 +15,6 @@
#include <linux/dmi.h>
#include <linux/device.h>
#include <linux/suspend.h>
-#include <asm/io.h>
#include <acpi/acpi_bus.h>
#include <acpi/acpi_drivers.h>
#include "sleep.h"
@@ -27,10 +27,11 @@
extern void do_suspend_lowlevel(void);
static u32 acpi_suspend_states[] = {
- [PM_SUSPEND_ON] = ACPI_STATE_S0,
- [PM_SUSPEND_STANDBY] = ACPI_STATE_S1,
- [PM_SUSPEND_MEM] = ACPI_STATE_S3,
- [PM_SUSPEND_DISK] = ACPI_STATE_S4,
+ [PM_SUSPEND_ON] = ACPI_STATE_S0,
+ [PM_SUSPEND_STANDBY] = ACPI_STATE_S1,
+ [PM_SUSPEND_MEM] = ACPI_STATE_S3,
+ [PM_SUSPEND_DISK] = ACPI_STATE_S4,
+ [PM_SUSPEND_MAX] = ACPI_STATE_S5
};
static int init_8259A_after_S1;
@@ -44,30 +45,20 @@
* wakeup code to the waking vector.
*/
+extern int acpi_sleep_prepare(u32 acpi_state);
+extern void acpi_power_off(void);
+
static int acpi_pm_prepare(suspend_state_t pm_state)
{
u32 acpi_state = acpi_suspend_states[pm_state];
- if (!sleep_states[acpi_state])
+ if (!sleep_states[acpi_state]) {
+ printk("acpi_pm_prepare does not support %d \n", pm_state);
return -EPERM;
-
- /* do we have a wakeup address for S2 and S3? */
- /* Here, we support only S4BIOS, those we set the wakeup address */
- /* S4OS is only supported for now via swsusp.. */
- if (pm_state == PM_SUSPEND_MEM || pm_state == PM_SUSPEND_DISK) {
- if (!acpi_wakeup_address)
- return -EFAULT;
- acpi_set_firmware_waking_vector(
- (acpi_physical_address) virt_to_phys(
- (void *)acpi_wakeup_address));
}
- ACPI_FLUSH_CPU_CACHE();
- acpi_enable_wakeup_device_prep(acpi_state);
- acpi_enter_sleep_state_prep(acpi_state);
- return 0;
+ return acpi_sleep_prepare(acpi_state);
}
-
/**
* acpi_pm_enter - Actually enter a sleep state.
* @pm_state: State we're entering.
@@ -92,11 +83,9 @@
return error;
}
-
local_irq_save(flags);
acpi_enable_wakeup_device(acpi_state);
- switch (pm_state)
- {
+ switch (pm_state) {
case PM_SUSPEND_STANDBY:
barrier();
status = acpi_enter_sleep_state(acpi_state);
@@ -112,6 +101,10 @@
else
do_suspend_lowlevel_s4bios();
break;
+ case PM_SUSPEND_MAX:
+ acpi_power_off();
+ break;
+
default:
return -EINVAL;
}
@@ -126,11 +119,9 @@
if (pm_state > PM_SUSPEND_STANDBY)
acpi_restore_state_mem();
-
return ACPI_SUCCESS(status) ? 0 : -EFAULT;
}
-
/**
* acpi_pm_finish - Finish up suspend sequence.
* @pm_state: State we're coming out of.
@@ -156,27 +147,26 @@
return 0;
}
-
int acpi_suspend(u32 acpi_state)
{
suspend_state_t states[] = {
- [1] = PM_SUSPEND_STANDBY,
- [3] = PM_SUSPEND_MEM,
- [4] = PM_SUSPEND_DISK,
+ [1] = PM_SUSPEND_STANDBY,
+ [3] = PM_SUSPEND_MEM,
+ [4] = PM_SUSPEND_DISK,
+ [5] = PM_SUSPEND_MAX
};
- if (acpi_state <= 4 && states[acpi_state])
+ if (acpi_state < 6 && states[acpi_state])
return pm_suspend(states[acpi_state]);
return -EINVAL;
}
static struct pm_ops acpi_pm_ops = {
- .prepare = acpi_pm_prepare,
- .enter = acpi_pm_enter,
- .finish = acpi_pm_finish,
+ .prepare = acpi_pm_prepare,
+ .enter = acpi_pm_enter,
+ .finish = acpi_pm_finish,
};
-
/*
* Toshiba fails to preserve interrupts over S1, reinitialization
* of 8259 is needed after S1 resume.
@@ -190,16 +180,16 @@
static struct dmi_system_id __initdata acpisleep_dmi_table[] = {
{
- .callback = init_ints_after_s1,
- .ident = "Toshiba Satellite 4030cdt",
- .matches = { DMI_MATCH(DMI_PRODUCT_NAME, "S4030CDT/4.3"), },
- },
- { },
+ .callback = init_ints_after_s1,
+ .ident = "Toshiba Satellite 4030cdt",
+ .matches = {DMI_MATCH(DMI_PRODUCT_NAME, "S4030CDT/4.3"),},
+ },
+ {},
};
static int __init acpi_sleep_init(void)
{
- int i = 0;
+ int i = 0;
dmi_check_system(acpisleep_dmi_table);
@@ -207,7 +197,7 @@
return 0;
printk(KERN_INFO PREFIX "(supports");
- for (i=0; i < ACPI_S_STATE_COUNT; i++) {
+ for (i = 0; i < ACPI_S_STATE_COUNT; i++) {
acpi_status status;
u8 type_a, type_b;
status = acpi_get_sleep_type_data(i, &type_a, &type_b);