405e5d970a
1. see: TencentOS-tiny\board\STM8L052R8T6\IAR\hello_world 2. compile/debug/run with IAR for STM8
127 lines
3.4 KiB
C
127 lines
3.4 KiB
C
/*----------------------------------------------------------------------------
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* Tencent is pleased to support the open source community by making TencentOS
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* available.
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*
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* Copyright (C) 2019 THL A29 Limited, a Tencent company. All rights reserved.
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* If you have downloaded a copy of the TencentOS binary from Tencent, please
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* note that the TencentOS binary is licensed under the BSD 3-Clause License.
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*
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* If you have downloaded a copy of the TencentOS source code from Tencent,
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* please note that TencentOS source code is licensed under the BSD 3-Clause
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* License, except for the third-party components listed below which are
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* subject to different license terms. Your integration of TencentOS into your
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* own projects may require compliance with the BSD 3-Clause License, as well
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* as the other licenses applicable to the third-party components included
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* within TencentOS.
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*---------------------------------------------------------------------------*/
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#include "tos_evtdrv.h"
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#if TOS_CFG_EVENT_DRIVEN_EN > 0u
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__STATIC__ void evtdrv_timer_place(evtdrv_timer_t *tmr, evtdrv_tick_t timeout)
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{
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TOS_CPU_CPSR_ALLOC();
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evtdrv_timer_t *curr_tmr;
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TOS_CPU_INT_DISABLE();
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tmr->expires = tos_evtdrv_systick_get() + timeout;
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TOS_LIST_FOR_EACH_ENTRY(curr_tmr, evtdrv_timer_t, list, &evtdrv_timer_list) {
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if (tmr->expires < curr_tmr->expires) {
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break;
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}
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}
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tos_list_add_tail(&tmr->list, &curr_tmr->list);
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TOS_CPU_INT_ENABLE();
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}
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__STATIC__ void evtdrv_timer_takeoff(evtdrv_timer_t *tmr)
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{
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TOS_CPU_CPSR_ALLOC();
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TOS_CPU_INT_DISABLE();
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tos_list_del(&tmr->list);
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TOS_CPU_INT_ENABLE();
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}
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__API__ evtdrv_err_t tos_evtdrv_timer_create(evtdrv_timer_t *tmr,
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evtdrv_timer_callback_t callback,
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void *cb_arg,
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evtdrv_timer_opt_t opt)
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{
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if (!tmr || !callback) {
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return EVTDRV_ERR_PTR_NULL;
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}
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tmr->cb = callback;
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tmr->opt = opt;
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tos_list_init(&tmr->list);
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return EVTDRV_ERR_NONE;
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}
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__API__ evtdrv_err_t tos_evtdrv_timer_start(evtdrv_timer_t *tmr, evtdrv_tick_t timeout)
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{
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if (!tmr) {
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return EVTDRV_ERR_PTR_NULL;
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}
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if (!tos_list_empty(&tmr->list)) {
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return EVTDRV_ERR_TIMER_ALREADY_EXIST;
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}
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evtdrv_timer_place(tmr, timeout);
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if (tmr->opt == EVTDRV_TIMER_OPT_PERIODIC) {
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tmr->period = timeout;
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}
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return EVTDRV_ERR_NONE;
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}
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__API__ evtdrv_err_t tos_evtdrv_timer_stop(evtdrv_timer_t *tmr)
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{
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if (!tmr) {
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return EVTDRV_ERR_PTR_NULL;
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}
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if (tos_list_empty(&tmr->list)) {
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return EVTDRV_ERR_TIMER_INACTIVE;
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}
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evtdrv_timer_takeoff(tmr);
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return EVTDRV_ERR_NONE;
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}
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__KNL__ void evtdrv_timer_update(void)
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{
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TOS_CPU_CPSR_ALLOC();
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evtdrv_timer_t *tmr, *tmp;
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TOS_CPU_INT_DISABLE();
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TOS_LIST_FOR_EACH_ENTRY_SAFE(tmr, tmp, evtdrv_timer_t, list, &evtdrv_timer_list) {
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if (tmr->expires > tos_evtdrv_systick_get()) {
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break;
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}
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// time's up
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evtdrv_timer_takeoff(tmr);
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if (tmr->opt == EVTDRV_TIMER_OPT_PERIODIC) {
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evtdrv_timer_place(tmr, tmr->period);
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} else {
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evtdrv_timer_takeoff(tmr);
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}
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(*tmr->cb)(tmr->cb_arg);
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}
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TOS_CPU_INT_ENABLE();
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}
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#endif /* TOS_CFG_EVENT_DRIVEN_EN */
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