1/*  *********************************************************************
2    *  Broadcom Common Firmware Environment (CFE)
3    *
4    *  Timer defs and prototypes		File: cfe_timer.h
5    *
6    *  Definitions, prototypes, and macros related to the timer.
7    *
8    *  Author:  Mitch Lichtenberg
9    *
10    *********************************************************************
11    *
12    *  Copyright 2000,2001,2002,2003
13    *  Broadcom Corporation. All rights reserved.
14    *
15    *  This software is furnished under license and may be used and
16    *  copied only in accordance with the following terms and
17    *  conditions.  Subject to these conditions, you may download,
18    *  copy, install, use, modify and distribute modified or unmodified
19    *  copies of this software in source and/or binary form.  No title
20    *  or ownership is transferred hereby.
21    *
22    *  1) Any source code used, modified or distributed must reproduce
23    *     and retain this copyright notice and list of conditions
24    *     as they appear in the source file.
25    *
26    *  2) No right is granted to use any trade name, trademark, or
27    *     logo of Broadcom Corporation.  The "Broadcom Corporation"
28    *     name may not be used to endorse or promote products derived
29    *     from this software without the prior written permission of
30    *     Broadcom Corporation.
31    *
32    *  3) THIS SOFTWARE IS PROVIDED "AS-IS" AND ANY EXPRESS OR
33    *     IMPLIED WARRANTIES, INCLUDING BUT NOT LIMITED TO, ANY IMPLIED
34    *     WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
35    *     PURPOSE, OR NON-INFRINGEMENT ARE DISCLAIMED. IN NO EVENT
36    *     SHALL BROADCOM BE LIABLE FOR ANY DAMAGES WHATSOEVER, AND IN
37    *     PARTICULAR, BROADCOM SHALL NOT BE LIABLE FOR DIRECT, INDIRECT,
38    *     INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
39    *     (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
40    *     GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
41    *     BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
42    *     OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
43    *     TORT (INCLUDING NEGLIGENCE OR OTHERWISE), EVEN IF ADVISED OF
44    *     THE POSSIBILITY OF SUCH DAMAGE.
45    ********************************************************************* */
46
47#ifndef _CFE_TIMER_T
48#define _CFE_TIMER_T
49
50void cfe_bg_init(void);
51void cfe_bg_add(void (*func)(void *),void *arg);
52void cfe_bg_remove(void (*func)(void *));
53
54void background(void);
55
56#define POLL() background()
57
58typedef int64_t cfe_timer_t;
59
60void cfe_timer_init(unsigned int cpu_speed);
61extern volatile int64_t cfe_ticks;
62extern unsigned int cfe_cpu_speed;
63
64void cfe_sleep(int ticks);
65void cfe_usleep(int usec);
66void cfe_nsleep(int nsec);
67
68#define CFE_HZ 10			/* ticks per second */
69
70#define TIMER_SET(x,v)  x = cfe_ticks + (v)
71#define TIMER_EXPIRED(x) ((x) && (cfe_ticks > (x)))
72#define TIMER_CLEAR(x) x = 0
73#define TIMER_RUNNING(x) ((x) != 0)
74
75#endif
76