Fedora kernel-2.6.17-1.2142_FC4 patched with stable patch-2.6.17.4-vs2.0.2-rc26.diff

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

diff --git a/drivers/acpi/sleep/main.c b/drivers/acpi/sleep/main.c
index 0a5d2a9..930427f 100644 (file)
--- 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"
@@ -23,14 +23,14 @@ u8 sleep_states[ACPI_S_STATE_COUNT];
 
 static struct pm_ops acpi_pm_ops;
 
-extern void do_suspend_lowlevel_s4bios(void);
 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 +44,20 @@ static int init_8259A_after_S1;
  *     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 +82,9 @@ static int acpi_pm_enter(suspend_state_t pm_state)
                        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);
@@ -109,9 +97,11 @@ static int acpi_pm_enter(suspend_state_t pm_state)
        case PM_SUSPEND_DISK:
                if (acpi_pm_ops.pm_disk_mode == PM_DISK_PLATFORM)
                        status = acpi_enter_sleep_state(acpi_state);
-               else
-                       do_suspend_lowlevel_s4bios();
                break;
+       case PM_SUSPEND_MAX:
+               acpi_power_off();
+               break;
+
        default:
                return -EINVAL;
        }
@@ -126,11 +116,9 @@ static int acpi_pm_enter(suspend_state_t pm_state)
        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 +144,34 @@ static int acpi_pm_finish(suspend_state_t pm_state)
        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 int acpi_pm_state_valid(suspend_state_t pm_state)
+{
+       u32 acpi_state = acpi_suspend_states[pm_state];
+
+       return sleep_states[acpi_state];
+}
+
 static struct pm_ops acpi_pm_ops = {
-       .prepare        = acpi_pm_prepare,
-       .enter          = acpi_pm_enter,
-       .finish         = acpi_pm_finish,
+       .valid = acpi_pm_state_valid,
+       .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 +185,16 @@ static int __init init_ints_after_s1(struct dmi_system_id *d)
 
 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 +202,7 @@ static int __init acpi_sleep_init(void)
                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);
@@ -216,11 +211,6 @@ static int __init acpi_sleep_init(void)
                        printk(" S%d", i);
                }
                if (i == ACPI_STATE_S4) {
-                       if (acpi_gbl_FACS->S4bios_f) {
-                               sleep_states[i] = 1;
-                               printk(" S4bios");
-                               acpi_pm_ops.pm_disk_mode = PM_DISK_FIRMWARE;
-                       }
                        if (sleep_states[i])
                                acpi_pm_ops.pm_disk_mode = PM_DISK_PLATFORM;
                }