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1da177e4 LT |
1 | /* |
2 | * include/asm-v850/highres_timer.h -- High resolution timing routines | |
3 | * | |
4 | * Copyright (C) 2001,03 NEC Electronics Corporation | |
5 | * Copyright (C) 2001,03 Miles Bader <miles@gnu.org> | |
6 | * | |
7 | * This file is subject to the terms and conditions of the GNU General | |
8 | * Public License. See the file COPYING in the main directory of this | |
9 | * archive for more details. | |
10 | * | |
11 | * Written by Miles Bader <miles@gnu.org> | |
12 | */ | |
13 | ||
14 | #ifndef __V850_HIGHRES_TIMER_H__ | |
15 | #define __V850_HIGHRES_TIMER_H__ | |
16 | ||
17 | #ifndef __ASSEMBLY__ | |
18 | #include <linux/time.h> | |
19 | #endif | |
20 | ||
21 | #include <asm/entry.h> | |
22 | ||
23 | ||
24 | /* Frequency of the `slow ticks' (one tick each time the fast-tick | |
25 | counter overflows). */ | |
26 | #define HIGHRES_TIMER_SLOW_TICK_RATE 25 | |
27 | ||
28 | /* Which timer in the V850E `Timer D' we use. */ | |
29 | #define HIGHRES_TIMER_TIMER_D_UNIT 3 | |
30 | ||
31 | ||
32 | #ifndef __ASSEMBLY__ | |
33 | ||
34 | extern void highres_timer_start (void), highres_timer_stop (void); | |
35 | extern void highres_timer_reset (void); | |
36 | extern void highres_timer_read_ticks (u32 *slow_ticks, u32 *fast_ticks); | |
37 | extern void highres_timer_ticks_to_timeval (u32 slow_ticks, u32 fast_ticks, | |
38 | struct timeval *tv); | |
39 | extern void highres_timer_read (struct timeval *tv); | |
40 | ||
41 | #endif /* !__ASSEMBLY__ */ | |
42 | ||
43 | ||
44 | #endif /* __V850_HIGHRES_TIMER_H__ */ |