[PATCH] [38/48] Suspend2 2.1.9.8 for 2.6.12: 614-plugins.patch

Nigel Cunningham
2005-07-06T03:23:44Z

diff -ruNp 615-poweroff.patch-old/kernel/power/suspend2_core/power_off.c 615-poweroff.patch-new/kernel/power/suspend2_core/power_off.c
--- 615-poweroff.patch-old/kernel/power/suspend2_core/power_off.c 1970-01-01 10:00:00.000000000 +1000
+++ 615-poweroff.patch-new/kernel/power/suspend2_core/power_off.c 2005-07-04 23:14:19.000000000 +1000
@@ -0,0 +1,148 @@
+/*
+ * kernel/power/suspend2_core/power_off.c
+ *
+ * Copyright (C) 2005 Nigel Cunningham <nigel@suspend2.net>
+ *
+ * This file is released under the GPLv2.
+ *
+ * Support for powering down.
+ */
+
+#include <linux/device.h>
+#include <linux/suspend.h>
+#include <linux/mm.h>
+#include <linux/pm.h>
+#include <linux/reboot.h>
+#include "suspend2_common.h"
+#include "suspend.h"
+#include "ui.h"
+
+unsigned long suspend2_powerdown_method = 5; /* S5 = off */
+static int suspend_pm_state_used = 0;
+
+extern struct pm_ops * pm_ops;
+
+#ifdef CONFIG_ACPI
+extern u32 acpi_leave_sleep_state (u8 sleep_state);
+#endif
+
+/* suspend_power_off
+ *
+ * Power off the machine.
+ */
+static void suspend_power_off(void)
+{
+ machine_power_off();
+ suspend2_prepare_status(1, 0, "Probably not capable for powerdown.");
+ while (1)
+ cpu_relax();
+ /* NOTREACHED */
+}
+
+/* suspend_pm_state_prepare
+ *
+ * Prepare to enter the sleep state.
+ */
+static int suspend_pm_state_prepare(void)
+{
+ int ret = 0;
+
+ if (suspend2_powerdown_method == 3 ||
+ suspend2_powerdown_method == 4)
+ if (pm_ops && pm_ops->prepare)
+ ret = pm_ops->prepare(suspend2_powerdown_method);
+
+ return ret;
+}
+
+/* suspend_pm_sleep_state_enter
+ *
+ * Enter the sleep state requested.
+ */
+static int suspend_pm_state_enter(u32 state)
+{
+ int ret = 0;
+ unsigned long flags;
+ suspend_pm_state_used = state;
+
+ local_irq_save(flags);
+ device_power_down(PMSG_SUSPEND);
+ if (pm_ops && pm_ops->enter)
+ ret = pm_ops->enter(state);
+ else
+ printk("Failed to enter state.\n");
+
+ device_power_up();
+ local_irq_restore(flags);
+
+ return ret;
+}
+
+/* suspend_pm_state_finish
+ *
+ * Finish the sleep state.
+ */
+int suspend_pm_state_finish(void)
+{
+ int ret = 0;
+
+ if (suspend2_powerdown_method == 3 ||
+ suspend2_powerdown_method == 4)
+ if (pm_ops && pm_ops->finish)
+ ret = pm_ops->finish(suspend2_powerdown_method);
+
+ device_resume();
+
+ return ret;
+}
+
+/*
+ * suspend_power_down
+ * Functionality : Powers down or reboots the computer once the image
+ * has been written to disk.
+ * Key Assumptions : Able to reboot/power down via code called or that
+ * the warning emitted if the calls fail will be visible
+ * to the user (ie printk resumes devices).
+ * Called From : do_suspend2_suspend_2
+ */
+
+void suspend_power_down(void)
+{
+ if (TEST_ACTION_STATE(SUSPEND_REBOOT)) {
+ suspend2_prepare_status(1, 0, "Ready to reboot.");
+ device_shutdown();
+ machine_restart(NULL);
+ }
+
+ if (suspend2_powerdown_method == 3 ||
+ suspend2_powerdown_method == 4) {
+ suspend2_prepare_status(1, 0, "Seeking to enter ACPI state");
+ if (suspend_pm_state_prepare()) {
+ suspend2_prepare_status(1, 0, "Preparing to enter ACPI state failed. Using normal powerdown.");
+ goto abort_ACPI_sleep;
+ }
+ if (device_suspend(PMSG_SUSPEND)) {
+ suspend2_prepare_status(1, 0, "Suspending devices failed. Using normal powerdown.");
+ suspend_pm_state_finish();
+ goto abort_ACPI_sleep;
+ }
+ if (suspend_pm_state_enter(suspend2_powerdown_method)) {
+ suspend2_prepare_status(1, 0, "Entering ACPI state failed. Using normal powerdown.");
+ suspend_pm_state_finish();
+ goto abort_ACPI_sleep;
+ }
+ suspend_pm_state_finish();
+ return;
+ } else
+ suspend2_prepare_status(1, 0, "Powering down.");
+
+abort_ACPI_sleep:
+ /*
+ * FIXME: At resume, we'll still think we used S4 if we tried it.
+ * Does it matter?
+ */
+ suspend_pm_state_used = 0;
+ device_shutdown();
+ suspend_power_off();
+}
+
diff -ruNp 615-poweroff.patch-old/kernel/power/suspend2_core/power_off.h 615-poweroff.patch-new/kernel/power/suspend2_core/power_off.h
--- 615-poweroff.patch-old/kernel/power/suspend2_core/power_off.h 1970-01-01 10:00:00.000000000 +1000
+++ 615-poweroff.patch-new/kernel/power/suspend2_core/power_off.h 2005-07-04 23:14:19.000000000 +1000
@@ -0,0 +1,13 @@
+/*
+ * kernel/power/suspend2_core/power_off.h
+ *
+ * Copyright (C) 2005 Nigel Cunningham <nigel@suspend2.net>
+ *
+ * This file is released under the GPLv2.
+ *
+ * Support for the powering down.
+ */
+
+int suspend_pm_state_finish(void);
+void suspend_power_down(void);
+extern unsigned long suspend2_powerdown_method;