#include <linux/list.h>
#include <asm/atomic.h>
+#include <asm/errno.h>
/*
* Power management requests... these are passed to pm_send_all() and friends.
*/
extern void (*pm_idle)(void);
extern void (*pm_power_off)(void);
-
-typedef int __bitwise suspend_state_t;
-
-#define PM_SUSPEND_ON ((__force suspend_state_t) 0)
-#define PM_SUSPEND_STANDBY ((__force suspend_state_t) 1)
-#define PM_SUSPEND_MEM ((__force suspend_state_t) 3)
-#define PM_SUSPEND_MAX ((__force suspend_state_t) 4)
-
-/**
- * struct pm_ops - Callbacks for managing platform dependent system sleep
- * states.
- *
- * @valid: Callback to determine if given system sleep state is supported by
- * the platform.
- * Valid (ie. supported) states are advertised in /sys/power/state. Note
- * that it still may be impossible to enter given system sleep state if the
- * conditions aren't right.
- * There is the %pm_valid_only_mem function available that can be assigned
- * to this if the platform only supports mem sleep.
- *
- * @set_target: Tell the platform which system sleep state is going to be
- * entered.
- * @set_target() is executed right prior to suspending devices. The
- * information conveyed to the platform code by @set_target() should be
- * disregarded by the platform as soon as @finish() is executed and if
- * @prepare() fails. If @set_target() fails (ie. returns nonzero),
- * @prepare(), @enter() and @finish() will not be called by the PM core.
- * This callback is optional. However, if it is implemented, the argument
- * passed to @prepare(), @enter() and @finish() is meaningless and should
- * be ignored.
- *
- * @prepare: Prepare the platform for entering the system sleep state indicated
- * by @set_target() or represented by the argument if @set_target() is not
- * implemented.
- * @prepare() is called right after devices have been suspended (ie. the
- * appropriate .suspend() method has been executed for each device) and
- * before the nonboot CPUs are disabled (it is executed with IRQs enabled).
- * This callback is optional. It returns 0 on success or a negative
- * error code otherwise, in which case the system cannot enter the desired
- * sleep state (@enter() and @finish() will not be called in that case).
- *
- * @enter: Enter the system sleep state indicated by @set_target() or
- * represented by the argument if @set_target() is not implemented.
- * This callback is mandatory. It returns 0 on success or a negative
- * error code otherwise, in which case the system cannot enter the desired
- * sleep state.
- *
- * @finish: Called when the system has just left a sleep state, right after
- * the nonboot CPUs have been enabled and before devices are resumed (it is
- * executed with IRQs enabled). If @set_target() is not implemented, the
- * argument represents the sleep state being left.
- * This callback is optional, but should be implemented by the platforms
- * that implement @prepare(). If implemented, it is always called after
- * @enter() (even if @enter() fails).
- */
-struct pm_ops {
- int (*valid)(suspend_state_t state);
- int (*set_target)(suspend_state_t state);
- int (*prepare)(suspend_state_t state);
- int (*enter)(suspend_state_t state);
- int (*finish)(suspend_state_t state);
-};
-
-extern struct pm_ops *pm_ops;
-
-/**
- * pm_set_ops - set platform dependent power management ops
- * @pm_ops: The new power management operations to set.
- */
-extern void pm_set_ops(struct pm_ops *pm_ops);
-extern int pm_valid_only_mem(suspend_state_t state);
-
-/**
- * arch_suspend_disable_irqs - disable IRQs for suspend
- *
- * Disables IRQs (in the default case). This is a weak symbol in the common
- * code and thus allows architectures to override it if more needs to be
- * done. Not called for suspend to disk.
- */
-extern void arch_suspend_disable_irqs(void);
-
-/**
- * arch_suspend_enable_irqs - enable IRQs after suspend
- *
- * Enables IRQs (in the default case). This is a weak symbol in the common
- * code and thus allows architectures to override it if more needs to be
- * done. Not called for suspend to disk.
- */
-extern void arch_suspend_enable_irqs(void);
-
-extern int pm_suspend(suspend_state_t state);
+extern void (*pm_power_off_prepare)(void);
/*
* Device power management
struct dev_pm_info {
pm_message_t power_state;
unsigned can_wakeup:1;
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
unsigned should_wakeup:1;
struct list_head entry;
#endif
extern void device_power_up(void);
extern void device_resume(void);
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
extern int device_suspend(pm_message_t state);
extern int device_prepare_suspend(pm_message_t state);
#define device_may_wakeup(dev) \
(device_can_wakeup(dev) && (dev)->power.should_wakeup)
-extern int dpm_runtime_suspend(struct device *, pm_message_t);
-extern void dpm_runtime_resume(struct device *);
extern void __suspend_report_result(const char *function, void *fn, int ret);
#define suspend_report_result(fn, ret) \
return 0;
}
-#else /* !CONFIG_PM */
+#else /* !CONFIG_PM_SLEEP */
static inline int device_suspend(pm_message_t state)
{
#define device_set_wakeup_enable(dev,val) do{}while(0)
#define device_may_wakeup(dev) (0)
-static inline int dpm_runtime_suspend(struct device * dev, pm_message_t state)
-{
- return 0;
-}
-
-static inline void dpm_runtime_resume(struct device * dev)
-{
-}
-
#define suspend_report_result(fn, ret) do { } while (0)
static inline int call_platform_enable_wakeup(struct device *dev, int is_on)
return 0;
}
-#endif
+#endif /* !CONFIG_PM_SLEEP */
/* changes to device_may_wakeup take effect on the next pm state change.
* by default, devices should wakeup if they can.
device_set_wakeup_enable(dev,val); \
} while(0)
+/*
+ * Global Power Management flags
+ * Used to keep APM and ACPI from both being active
+ */
+extern unsigned int pm_flags;
+
+#define PM_APM 1
+#define PM_ACPI 2
+
#endif /* __KERNEL__ */
#endif /* _LINUX_PM_H */
projects / linux-2.6-block.git / blobdiff