1/*-
2 * SPDX-License-Identifier: BSD-3-Clause
3 *
4 * Copyright (c) 1982, 1986, 1991, 1993
5 *	The Regents of the University of California.  All rights reserved.
6 * (c) UNIX System Laboratories, Inc.
7 * All or some portions of this file are derived from material licensed
8 * to the University of California by American Telephone and Telegraph
9 * Co. or Unix System Laboratories, Inc. and are reproduced herein with
10 * the permission of UNIX System Laboratories, Inc.
11 *
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
14 * are met:
15 * 1. Redistributions of source code must retain the above copyright
16 *    notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 *    notice, this list of conditions and the following disclaimer in the
19 *    documentation and/or other materials provided with the distribution.
20 * 3. Neither the name of the University nor the names of its contributors
21 *    may be used to endorse or promote products derived from this software
22 *    without specific prior written permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * SUCH DAMAGE.
35 *
36 *	From: @(#)kern_clock.c	8.5 (Berkeley) 1/21/94
37 */
38
39#include <sys/cdefs.h>
40
41#include <sys/callout.h>
42#include <sys/mutex.h>
43#include "los_swtmr.h"
44
45/*
46 * Note: Convert freebsd callout to Huawei LiteOS timeout, follow events would happen
47 * 1. function handle must forece convert
48 * 2. Huawei LiteOS timer expires scale is millisecond, so check input ticks is millisecond scale
49 */
50
51void
52callout_init_mtx(struct callout *c, struct pthread_mutex *mtx, int flag)
53{
54        (void)flag;
55        if (c != NULL) {
56                c->tm_mtx = mtx;
57                mtx_init(&c->callout_mtx,0,0,0);
58                LOS_SpinInit(&c->lock);
59                c->timer_id = OS_SWTMR_MAX_TIMERID;
60        }
61}
62
63void
64callout_function(void *arg)
65{
66        struct callout* callout = arg;
67
68        (callout->callout_data.func)((uintptr_t)(callout->callout_data.arg));
69}
70
71void
72callout_reset(struct callout *c, int to_ticks, void (*func)(void *), void *arg)
73{
74        uint32_t int_save;
75        uint32_t ret;
76
77        if (c != NULL) {
78                callout_stop(c);
79                LOS_SpinLockSave(&c->lock, (unsigned int *)&int_save);
80
81                c->callout_data.func = (timer_func)func;
82                c->callout_data.arg = arg;
83                ret = LOS_SwtmrCreate((to_ticks==0 ? 1 : to_ticks),
84                                      LOS_SWTMR_MODE_NO_SELFDELETE,
85                                      (SWTMR_PROC_FUNC)callout_function,
86                                      (unsigned short *)&c->timer_id,
87                                      (uintptr_t)c);
88                if (ret != LOS_OK) {
89                        PRINTK("add_timer<error> timer create failed: %u \n", ret);
90                } else {
91                        ret = LOS_SwtmrStart(c->timer_id);
92                        if (ret != LOS_OK) {
93                                PRINTK("add_timer<error> timer start failed: %u \n", ret);
94                        }
95                }
96                LOS_SpinUnlockRestore(&c->lock, int_save);
97        }
98}
99
100void
101callout_stop(struct callout *c)
102{
103        uint32_t int_save;
104        if (c != NULL) {
105                LOS_SpinLockSave(&c->lock, (unsigned int *)&int_save);
106                (void)LOS_SwtmrDelete(c->timer_id);
107                LOS_SpinUnlockRestore(&c->lock, int_save);
108        }
109}
110
111void
112callout_drain(struct callout *c)
113{
114        if(!c || !c->tm_mtx){
115                return ;
116        }
117        mtx_lock(c->tm_mtx);
118        callout_stop(c);
119        mtx_unlock(c->tm_mtx);
120}
121