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Diffstat (limited to 'include/asm-arm/mach/time.h')
-rw-r--r-- | include/asm-arm/mach/time.h | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/include/asm-arm/mach/time.h b/include/asm-arm/mach/time.h new file mode 100644 index 000000000000..5cf4fd659fd5 --- /dev/null +++ b/include/asm-arm/mach/time.h | |||
@@ -0,0 +1,54 @@ | |||
1 | /* | ||
2 | * linux/include/asm-arm/mach/time.h | ||
3 | * | ||
4 | * Copyright (C) 2004 MontaVista Software, Inc. | ||
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_ARM_MACH_TIME_H | ||
11 | #define __ASM_ARM_MACH_TIME_H | ||
12 | |||
13 | #include <linux/sysdev.h> | ||
14 | |||
15 | /* | ||
16 | * This is our kernel timer structure. | ||
17 | * | ||
18 | * - init | ||
19 | * Initialise the kernels jiffy timer source, claim interrupt | ||
20 | * using setup_irq. This is called early on during initialisation | ||
21 | * while interrupts are still disabled on the local CPU. | ||
22 | * - suspend | ||
23 | * Suspend the kernel jiffy timer source, if necessary. This | ||
24 | * is called with interrupts disabled, after all normal devices | ||
25 | * have been suspended. If no action is required, set this to | ||
26 | * NULL. | ||
27 | * - resume | ||
28 | * Resume the kernel jiffy timer source, if necessary. This | ||
29 | * is called with interrupts disabled before any normal devices | ||
30 | * are resumed. If no action is required, set this to NULL. | ||
31 | * - offset | ||
32 | * Return the timer offset in microseconds since the last timer | ||
33 | * interrupt. Note: this must take account of any unprocessed | ||
34 | * timer interrupt which may be pending. | ||
35 | */ | ||
36 | struct sys_timer { | ||
37 | struct sys_device dev; | ||
38 | void (*init)(void); | ||
39 | void (*suspend)(void); | ||
40 | void (*resume)(void); | ||
41 | unsigned long (*offset)(void); | ||
42 | }; | ||
43 | |||
44 | extern struct sys_timer *system_timer; | ||
45 | extern void timer_tick(struct pt_regs *); | ||
46 | |||
47 | /* | ||
48 | * Kernel time keeping support. | ||
49 | */ | ||
50 | extern int (*set_rtc)(void); | ||
51 | extern void save_time_delta(struct timespec *delta, struct timespec *rtc); | ||
52 | extern void restore_time_delta(struct timespec *delta, struct timespec *rtc); | ||
53 | |||
54 | #endif | ||