projects / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | #include <linux/suspend.h> |
| 2 | #include <linux/utsname.h> | |
| 3 | ||
| 4 | /* With SUSPEND_CONSOLE defined, it suspend looks *really* cool, but | |
| 5 | we probably do not take enough locks for switching consoles, etc, | |
| 6 | so bad things might happen. | |
| 7 | */ | |
| 8 | #if defined(CONFIG_VT) && defined(CONFIG_VT_CONSOLE) | |
| 9 | #define SUSPEND_CONSOLE (MAX_NR_CONSOLES-1) | |
| 10 | #endif | |
| 11 | ||
| 12 | ||
| 13 | struct swsusp_info { | |
| 14 | struct new_utsname uts; | |
| 15 | u32 version_code; | |
| 16 | unsigned long num_physpages; | |
| 17 | int cpus; | |
| 18 | unsigned long image_pages; | |
| 19 | unsigned long pagedir_pages; | |
| 20 | suspend_pagedir_t * suspend_pagedir; | |
| 21 | swp_entry_t pagedir[768]; | |
| 22 | } __attribute__((aligned(PAGE_SIZE))); | |
| 23 | ||
| 24 | ||
| 25 | ||
| 26 | #ifdef CONFIG_SOFTWARE_SUSPEND | |
| 27 | extern int pm_suspend_disk(void); | |
| 28 | ||
| 29 | #else | |
| 30 | static inline int pm_suspend_disk(void) | |
| 31 | { | |
| 32 | return -EPERM; | |
| 33 | } | |
| 34 | #endif | |
| 35 | extern struct semaphore pm_sem; | |
| 36 | #define power_attr(_name) \ | |
| 37 | static struct subsys_attribute _name##_attr = { \ | |
| 38 | .attr = { \ | |
| 39 | .name = __stringify(_name), \ | |
| 40 | .mode = 0644, \ | |
| 41 | }, \ | |
| 42 | .show = _name##_show, \ | |
| 43 | .store = _name##_store, \ | |
| 44 | } | |
| 45 | ||
| 46 | extern struct subsystem power_subsys; | |
| 47 | ||
| 48 | extern int freeze_processes(void); | |
| 49 | extern void thaw_processes(void); | |
| 50 | ||
| 51 | extern int pm_prepare_console(void); | |
| 52 | extern void pm_restore_console(void); |