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 __FBSDID("$FreeBSD$"); 41 42 #include <sys/callout.h> 43 #include <sys/mutex.h> 44 #include "los_swtmr.h" 45 46 /* 47 * Note: Convert freebsd callout to Huawei LiteOS timeout, follow events would happen 48 * 1. function handle must forece convert 49 * 2. Huawei LiteOS timer expires scale is millisecond, so check input ticks is millisecond scale 50 */ 51 52 void 53 callout_init_mtx(struct callout *c, struct pthread_mutex *mtx, int flag) 54 { 55 (void)flag; 56 if (c != NULL) { 57 c->tm_mtx = mtx; 58 mtx_init(&c->callout_mtx,0,0,0); 59 LOS_SpinInit(&c->lock); 60 c->timer_id = OS_SWTMR_MAX_TIMERID; 61 } 62 } 63 64 void 65 callout_function(void *arg) 66 { 67 struct callout* callout = arg; 68 69 (callout->callout_data.func)((uintptr_t)(callout->callout_data.arg)); 70 } 71 72 void 73 callout_reset(struct callout *c, int to_ticks, void (*func)(void *), void *arg) 74 { 75 uint32_t int_save; 76 uint32_t ret; 77 78 if (c != NULL) { 79 callout_stop(c); 80 LOS_SpinLockSave(&c->lock, (unsigned int *)&int_save); 81 82 c->callout_data.func = (timer_func)func; 83 c->callout_data.arg = arg; 84 ret = LOS_SwtmrCreate((to_ticks==0 ? 1 : to_ticks), 85 LOS_SWTMR_MODE_NO_SELFDELETE, 86 (SWTMR_PROC_FUNC)callout_function, 87 (unsigned short *)&c->timer_id, 88 (uintptr_t)c); 89 if (ret != LOS_OK) { 90 PRINTK("add_timer<error> timer create failed: %u \n", ret); 91 } else { 92 ret = LOS_SwtmrStart(c->timer_id); 93 if (ret != LOS_OK) { 94 PRINTK("add_timer<error> timer start failed: %u \n", ret); 95 } 96 } 97 LOS_SpinUnlockRestore(&c->lock, int_save); 98 } 99 } 100 101 void 102 callout_stop(struct callout *c) 103 { 104 uint32_t int_save; 105 if (c != NULL) { 106 LOS_SpinLockSave(&c->lock, (unsigned int *)&int_save); 107 (void)LOS_SwtmrDelete(c->timer_id); 108 LOS_SpinUnlockRestore(&c->lock, int_save); 109 } 110 } 111 112 void 113 callout_drain(struct callout *c) 114 { 115 if(!c || !c->tm_mtx){ 116 return ; 117 } 118 mtx_lock(c->tm_mtx); 119 callout_stop(c); 120 mtx_unlock(c->tm_mtx); 121 } 122