X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=drivers%2Facpi%2Fsleep%2Fpoweroff.c;h=47fb4b394eec568636b2a7da421e12210e96acc6;hb=43bc926fffd92024b46cafaf7350d669ba9ca884;hp=da237754ded9e53842ec511679a4c1b0ff274bf7;hpb=cee37fe97739d85991964371c1f3a745c00dd236;p=linux-2.6.git

diff --git a/drivers/acpi/sleep/poweroff.c b/drivers/acpi/sleep/poweroff.c
index da237754d..47fb4b394 100644
--- a/drivers/acpi/sleep/poweroff.c
+++ b/drivers/acpi/sleep/poweroff.c
@@ -3,37 +3,97 @@
  *
  * AKA S5, but it is independent of whether or not the kernel supports
  * any other sleep support in the system.
+ *
+ * Copyright (c) 2005 Alexey Starikovskiy <alexey.y.starikovskiy@intel.com>
+ *
+ * This file is released under the GPLv2.
  */
 
 #include <linux/pm.h>
 #include <linux/init.h>
 #include <acpi/acpi_bus.h>
 #include <linux/sched.h>
+#include <linux/sysdev.h>
+#include <asm/io.h>
 #include "sleep.h"
 
-static void
-acpi_power_off (void)
+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_PM
+
+void acpi_power_off(void)
 {
-	printk("%s called\n",__FUNCTION__);
+	/* acpi_sleep_prepare(ACPI_STATE_S5) should have already been called */
+	printk("%s called\n", __FUNCTION__);
+	local_irq_disable();
 	/* Some SMP machines only can poweroff in boot CPU */
-	set_cpus_allowed(current, cpumask_of_cpu(0));
-	acpi_wakeup_gpe_poweroff_prepare();
-	acpi_enter_sleep_state_prep(ACPI_STATE_S5);
-	ACPI_DISABLE_IRQS();
 	acpi_enter_sleep_state(ACPI_STATE_S5);
 }
 
+static int acpi_shutdown(struct sys_device *x)
+{
+	switch (system_state) {
+	case SYSTEM_POWER_OFF:
+		/* Prepare to power off the system */
+		return acpi_sleep_prepare(ACPI_STATE_S5);
+	case SYSTEM_SUSPEND_DISK:
+		/* Prepare to suspend the system to disk */
+		return acpi_sleep_prepare(ACPI_STATE_S4);
+	default:
+		return 0;
+	}
+}
+
+static struct sysdev_class acpi_sysclass = {
+	set_kset_name("acpi"),
+	.shutdown = acpi_shutdown
+};
+
+static struct sys_device device_acpi = {
+	.id = 0,
+	.cls = &acpi_sysclass,
+};
+
 static int acpi_poweroff_init(void)
 {
 	if (!acpi_disabled) {
 		u8 type_a, type_b;
 		acpi_status status;
 
-		status = acpi_get_sleep_type_data(ACPI_STATE_S5, &type_a, &type_b);
-		if (ACPI_SUCCESS(status))
-			pm_power_off = acpi_power_off;
+		status =
+		    acpi_get_sleep_type_data(ACPI_STATE_S5, &type_a, &type_b);
+		if (ACPI_SUCCESS(status)) {
+			int error;
+			error = sysdev_class_register(&acpi_sysclass);
+			if (!error)
+				error = sysdev_register(&device_acpi);
+			if (!error)
+				pm_power_off = acpi_power_off;
+			return error;
+		}
 	}
 	return 0;
 }
 
 late_initcall(acpi_poweroff_init);
+
+#endif				/* CONFIG_PM */