| Haavard Skinnemoen | 7e59128 | 2008-02-24 23:24:26 +0100 | [diff] [blame] | 1 | /* |
| 2 | * AVR32 AP Power Management. |
| 3 | * |
| 4 | * Copyright (C) 2008 Atmel Corporation |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License version 2 as |
| 8 | * published by the Free Software Foundation. |
| 9 | */ |
| 10 | #ifndef __ASM_AVR32_ARCH_PM_H |
| 11 | #define __ASM_AVR32_ARCH_PM_H |
| 12 | |
| 13 | /* Possible arguments to the "sleep" instruction */ |
| 14 | #define CPU_SLEEP_IDLE 0 |
| 15 | #define CPU_SLEEP_FROZEN 1 |
| 16 | #define CPU_SLEEP_STANDBY 2 |
| 17 | #define CPU_SLEEP_STOP 3 |
| 18 | #define CPU_SLEEP_STATIC 5 |
| 19 | |
| 20 | #ifndef __ASSEMBLY__ |
| 21 | extern void cpu_enter_idle(void); |
| 22 | |
| 23 | extern bool disable_idle_sleep; |
| 24 | |
| 25 | static inline void cpu_disable_idle_sleep(void) |
| 26 | { |
| 27 | disable_idle_sleep = true; |
| 28 | } |
| 29 | |
| 30 | static inline void cpu_enable_idle_sleep(void) |
| 31 | { |
| 32 | disable_idle_sleep = false; |
| 33 | } |
| 34 | |
| 35 | static inline void cpu_idle_sleep(void) |
| 36 | { |
| 37 | /* |
| 38 | * If we're using the COUNT and COMPARE registers for |
| 39 | * timekeeping, we can't use the IDLE state. |
| 40 | */ |
| 41 | if (disable_idle_sleep) |
| 42 | cpu_relax(); |
| 43 | else |
| 44 | cpu_enter_idle(); |
| 45 | } |
| 46 | #endif |
| 47 | |
| 48 | #endif /* __ASM_AVR32_ARCH_PM_H */ |