Merge branch 'fixes-jgarzik' of git://git.kernel.org/pub/scm/linux/kernel/git/linvill...

[linux-2.6-omap-h63xx.git] / drivers / acpi / sleep / main.c

diff --git a/drivers/acpi/sleep/main.c b/drivers/acpi/sleep/main.c
index e8cff5dd4cbc8ba20cda8260825bff32122f4cbe..048295ec370786aae9b04b900402103e29c72df8 100644 (file)
--- a/drivers/acpi/sleep/main.c
+++ b/drivers/acpi/sleep/main.c
@@ -15,16 +15,42 @@
 #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"
 
 u8 sleep_states[ACPI_S_STATE_COUNT];
 
+#ifdef CONFIG_PM_SLEEP
 static u32 acpi_target_sleep_state = ACPI_STATE_S0;
+#endif
+
+int acpi_sleep_prepare(u32 acpi_state)
+{
+#ifdef CONFIG_ACPI_SLEEP
+       /* do we have a wakeup address for S2 and S3? */
+       if (acpi_state == ACPI_STATE_S3) {
+               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);
+#endif
+       acpi_gpe_sleep_prepare(acpi_state);
+       acpi_enter_sleep_state_prep(acpi_state);
+       return 0;
+}
 
 #ifdef CONFIG_SUSPEND
-static struct pm_ops acpi_pm_ops;
+static struct platform_suspend_ops acpi_pm_ops;
 
 extern void do_suspend_lowlevel(void);
 
@@ -59,13 +85,12 @@ static int acpi_pm_set_target(suspend_state_t pm_state)
 
 /**
  *     acpi_pm_prepare - Do preliminary suspend work.
- *     @pm_state: ignored
  *
  *     If necessary, set the firmware waking vector and do arch-specific
  *     nastiness to get the wakeup code to the waking vector.
  */
 
-static int acpi_pm_prepare(suspend_state_t pm_state)
+static int acpi_pm_prepare(void)
 {
        int error = acpi_sleep_prepare(acpi_target_sleep_state);
 
@@ -134,13 +159,12 @@ static int acpi_pm_enter(suspend_state_t pm_state)
 
 /**
  *     acpi_pm_finish - Finish up suspend sequence.
- *     @pm_state: ignored
  *
  *     This is called after we wake back up (or if entering the sleep state
  *     failed). 
  */
 
-static int acpi_pm_finish(suspend_state_t pm_state)
+static void acpi_pm_finish(void)
 {
        u32 acpi_state = acpi_target_sleep_state;
 
@@ -158,7 +182,6 @@ static int acpi_pm_finish(suspend_state_t pm_state)
                init_8259A(0);
        }
 #endif
-       return 0;
 }
 
 static int acpi_pm_state_valid(suspend_state_t pm_state)
@@ -177,7 +200,7 @@ static int acpi_pm_state_valid(suspend_state_t pm_state)
        }
 }
 
-static struct pm_ops acpi_pm_ops = {
+static struct platform_suspend_ops acpi_pm_ops = {
        .valid = acpi_pm_state_valid,
        .set_target = acpi_pm_set_target,
        .prepare = acpi_pm_prepare,
@@ -189,7 +212,7 @@ static struct pm_ops acpi_pm_ops = {
  * Toshiba fails to preserve interrupts over S1, reinitialization
  * of 8259 is needed after S1 resume.
  */
-static int __init init_ints_after_s1(struct dmi_system_id *d)
+static int __init init_ints_after_s1(const struct dmi_system_id *d)
 {
        printk(KERN_WARNING "%s with broken S1 detected.\n", d->ident);
        init_8259A_after_S1 = 1;
@@ -207,6 +230,12 @@ static struct dmi_system_id __initdata acpisleep_dmi_table[] = {
 #endif /* CONFIG_SUSPEND */
 
 #ifdef CONFIG_HIBERNATION
+static int acpi_hibernation_start(void)
+{
+       acpi_target_sleep_state = ACPI_STATE_S4;
+       return 0;
+}
+
 static int acpi_hibernation_prepare(void)
 {
        return acpi_sleep_prepare(ACPI_STATE_S4);
@@ -228,6 +257,15 @@ static int acpi_hibernation_enter(void)
        return ACPI_SUCCESS(status) ? 0 : -EFAULT;
 }
 
+static void acpi_hibernation_leave(void)
+{
+       /*
+        * If ACPI is not enabled by the BIOS and the boot kernel, we need to
+        * enable it here.
+        */
+       acpi_enable();
+}
+
 static void acpi_hibernation_finish(void)
 {
        acpi_leave_sleep_state(ACPI_STATE_S4);
@@ -235,6 +273,8 @@ static void acpi_hibernation_finish(void)
 
        /* reset firmware waking vector */
        acpi_set_firmware_waking_vector((acpi_physical_address) 0);
+
+       acpi_target_sleep_state = ACPI_STATE_S0;
 }
 
 static int acpi_hibernation_pre_restore(void)
@@ -251,10 +291,13 @@ static void acpi_hibernation_restore_cleanup(void)
        acpi_hw_enable_all_runtime_gpes();
 }
 
-static struct hibernation_ops acpi_hibernation_ops = {
+static struct platform_hibernation_ops acpi_hibernation_ops = {
+       .start = acpi_hibernation_start,
+       .pre_snapshot = acpi_hibernation_prepare,
+       .finish = acpi_hibernation_finish,
        .prepare = acpi_hibernation_prepare,
        .enter = acpi_hibernation_enter,
-       .finish = acpi_hibernation_finish,
+       .leave = acpi_hibernation_leave,
        .pre_restore = acpi_hibernation_pre_restore,
        .restore_cleanup = acpi_hibernation_restore_cleanup,
 };
@@ -275,6 +318,7 @@ int acpi_suspend(u32 acpi_state)
        return -EINVAL;
 }
 
+#ifdef CONFIG_PM_SLEEP
 /**
  *     acpi_pm_device_sleep_state - return preferred power state of ACPI device
  *             in the system sleep state given by %acpi_target_sleep_state
@@ -305,7 +349,7 @@ int acpi_pm_device_sleep_state(struct device *dev, int wake, int *d_min_p)
        unsigned long d_min, d_max;
 
        if (!handle || ACPI_FAILURE(acpi_bus_get_device(handle, &adev))) {
-               printk(KERN_ERR "ACPI handle has no context!\n");
+               printk(KERN_DEBUG "ACPI handle has no context!\n");
                return -ENODEV;
        }
 
@@ -349,6 +393,21 @@ int acpi_pm_device_sleep_state(struct device *dev, int wake, int *d_min_p)
                *d_min_p = d_min;
        return d_max;
 }
+#endif
+
+static void acpi_power_off_prepare(void)
+{
+       /* Prepare to power off the system */
+       acpi_sleep_prepare(ACPI_STATE_S5);
+}
+
+static void acpi_power_off(void)
+{
+       /* acpi_sleep_prepare(ACPI_STATE_S5) should have already been called */
+       printk("%s called\n", __FUNCTION__);
+       local_irq_disable();
+       acpi_enter_sleep_state(ACPI_STATE_S5);
+}
 
 int __init acpi_sleep_init(void)
 {
@@ -363,18 +422,19 @@ int __init acpi_sleep_init(void)
        if (acpi_disabled)
                return 0;
 
+       sleep_states[ACPI_STATE_S0] = 1;
+       printk(KERN_INFO PREFIX "(supports S0");
+
 #ifdef CONFIG_SUSPEND
-       printk(KERN_INFO PREFIX "(supports");
-       for (i = ACPI_STATE_S0; i < ACPI_STATE_S4; i++) {
+       for (i = ACPI_STATE_S1; i < ACPI_STATE_S4; i++) {
                status = acpi_get_sleep_type_data(i, &type_a, &type_b);
                if (ACPI_SUCCESS(status)) {
                        sleep_states[i] = 1;
                        printk(" S%d", i);
                }
        }
-       printk(")\n");
 
-       pm_set_ops(&acpi_pm_ops);
+       suspend_set_ops(&acpi_pm_ops);
 #endif
 
 #ifdef CONFIG_HIBERNATION
@@ -382,10 +442,16 @@ int __init acpi_sleep_init(void)
        if (ACPI_SUCCESS(status)) {
                hibernation_set_ops(&acpi_hibernation_ops);
                sleep_states[ACPI_STATE_S4] = 1;
+               printk(" S4");
        }
-#else
-       sleep_states[ACPI_STATE_S4] = 0;
 #endif
-
+       status = acpi_get_sleep_type_data(ACPI_STATE_S5, &type_a, &type_b);
+       if (ACPI_SUCCESS(status)) {
+               sleep_states[ACPI_STATE_S5] = 1;
+               printk(" S5");
+               pm_power_off_prepare = acpi_power_off_prepare;
+               pm_power_off = acpi_power_off;
+       }
+       printk(")\n");
        return 0;
 }