1/*
2 * Copyright (c) 2013-2019, Huawei Technologies Co., Ltd. All rights reserved.
3 * Copyright (c) 2020, Huawei Device Co., Ltd. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without modification,
6 * are permitted provided that the following conditions are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright notice, this list of
9 *    conditions and the following disclaimer.
10 *
11 * 2. Redistributions in binary form must reproduce the above copyright notice, this list
12 *    of conditions and the following disclaimer in the documentation and/or other materials
13 *    provided with the distribution.
14 *
15 * 3. Neither the name of the copyright holder nor the names of its contributors may be used
16 *    to endorse or promote products derived from this software without specific prior written
17 *    permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
21 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
23 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
24 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
25 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
26 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
27 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
28 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
29 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 */
31
32#include "linux/timer.h"
33#include "los_swtmr.h"
34
35
36void linux_init_timer(struct timer_list *timer)
37{
38    UINT32 intSave;
39
40    if (timer == NULL) {
41        PRINTK("init_timer<error> timer is NULL\n");
42        return;
43    }
44    LOS_SpinInit(&timer->lock);
45    LOS_SpinLockSave(&timer->lock, &intSave);
46    timer->flag = TIMER_UNVALID;
47    LOS_SpinUnlockRestore(&timer->lock, intSave);
48}
49
50STATIC UINT32 DoDeleteTimer(struct timer_list *timer)
51{
52    UINT32 ret;
53
54    ret = LOS_SwtmrDelete(timer->timerid);
55    if (ret == LOS_OK) {
56        timer->flag = TIMER_UNVALID;
57    }
58    return ret;
59}
60
61STATIC UINT32 DoAddTimer(struct timer_list *timer)
62{
63    UINT32 ret;
64
65    ret = LOS_SwtmrCreate(timer->expires, LOS_SWTMR_MODE_NO_SELFDELETE, (SWTMR_PROC_FUNC)timer->function,
66                          &timer->timerid, timer->data);
67    if (ret != LOS_OK) {
68        PRINTK("add_timer<error> timer create failed: %u \n", ret);
69        return ret;
70    }
71    ret = LOS_SwtmrStart(timer->timerid);
72    if (ret != LOS_OK) {
73        PRINTK("add_timer<error> timer start failed: %u \n", ret);
74    }
75    return ret;
76}
77
78void linux_add_timer(struct timer_list *timer)
79{
80    UINT32 intSave;
81
82    if (timer == NULL) {
83        PRINTK("add_timer<error> timer is NULL\n");
84        return;
85    }
86
87    LOS_SpinLockSave(&timer->lock, &intSave);
88    if (timer->flag == TIMER_VALID) {
89        if (DoDeleteTimer(timer) != LOS_OK) {
90            goto ERROUT;
91        }
92    }
93
94    if (DoAddTimer(timer) != LOS_OK) {
95        goto ERROUT;
96    }
97    timer->flag = TIMER_VALID;
98ERROUT:
99    LOS_SpinUnlockRestore(&timer->lock, intSave);
100    return;
101}
102
103int linux_del_timer(struct timer_list *timer)
104{
105    UINT32 intSave;
106    INT32 ret = 0;
107
108    if (timer == NULL) {
109        PRINTK("del_timer<error> timer is NULL\n");
110        return ret;
111    }
112
113    LOS_SpinLockSave(&timer->lock, &intSave);
114    if (timer->flag == TIMER_VALID) {
115        ret = (DoDeleteTimer(timer) == LOS_OK) ? 1 : 0;
116    }
117    LOS_SpinUnlockRestore(&timer->lock, intSave);
118
119    return ret;
120}
121
122int linux_mod_timer(struct timer_list *timer, unsigned long expires)
123{
124    INT32 ret = 0;
125    UINT32 intSave;
126
127    if (timer == NULL) {
128        return ret;
129    }
130
131    LOS_SpinLockSave(&timer->lock, &intSave);
132    if (timer->flag == TIMER_VALID) {
133        if (DoDeleteTimer(timer) != LOS_OK) {
134            goto ERROUT;
135        }
136        timer->expires = expires;
137        if (DoAddTimer(timer) == LOS_OK) {
138            timer->flag = TIMER_VALID;
139            ret = 1;
140        }
141    }
142ERROUT:
143    LOS_SpinUnlockRestore(&timer->lock, intSave);
144    return ret;
145}
146
147