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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
26struct 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
36extern struct platform_t * platform;
37extern void default_reboot(char * cmd);
38extern void default_halt(void);
39extern int default_suspend(int state, int flags);
40extern void default_idle(void);
41
42#endif /* __KERNEL__ */
43#endif /* _PLATFORM_H */