| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * include/linux/platform.h - platform driver definitions |
| 3 | * |
| 4 | * Because of the prolific consumerism of the average American, |
| 5 | * and the dominant marketing budgets of PC OEMs, we have been |
| 6 | * blessed with frequent updates of the PC architecture. |
| 7 | * |
| 8 | * While most of these calls are singular per architecture, they |
| 9 | * require an extra layer of abstraction on the x86 so the right |
| 10 | * subsystem gets the right call. |
| 11 | * |
| 12 | * Basically, this consolidates the power off and reboot callbacks |
| 13 | * into one structure, as well as adding power management hooks. |
| 14 | * |
| 15 | * When adding a platform driver, please make sure all callbacks are |
| 16 | * filled. There are defaults defined below that do nothing; use those |
| 17 | * if you do not support that callback. |
| 18 | */ |
| 19 | |
| 20 | #ifndef _PLATFORM_H_ |
| 21 | #define _PLATFORM_H_ |
| 22 | #ifdef __KERNEL__ |
| 23 | |
| 24 | #include <linux/types.h> |
| 25 | |
| 26 | struct platform_t { |
| 27 | char * name; |
| 28 | u32 suspend_states; |
| 29 | void (*reboot)(char * cmd); |
| 30 | void (*halt)(void); |
| 31 | void (*power_off)(void); |
| 32 | int (*suspend)(int state, int flags); |
| 33 | void (*idle)(void); |
| 34 | }; |
| 35 | |
| 36 | extern struct platform_t * platform; |
| 37 | extern void default_reboot(char * cmd); |
| 38 | extern void default_halt(void); |
| 39 | extern int default_suspend(int state, int flags); |
| 40 | extern void default_idle(void); |
| 41 | |
| 42 | #endif /* __KERNEL__ */ |
| 43 | #endif /* _PLATFORM_H */ |