esp-idf/components/hal/timer_hal.c
2022-09-13 10:50:58 +08:00

41 lines
1.3 KiB
C

/*
* SPDX-FileCopyrightText: 2021-2022 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <stdlib.h>
#include "hal/timer_hal.h"
#include "hal/timer_ll.h"
#include "soc/soc_caps.h"
void timer_hal_init(timer_hal_context_t *hal, uint32_t group_num, uint32_t timer_num)
{
hal->dev = TIMER_LL_GET_HW(group_num);
hal->timer_id = timer_num;
// enable peripheral clock
timer_ll_enable_clock(hal->dev, timer_num, true);
// stop counter, alarm, auto-reload at first place
timer_ll_enable_counter(hal->dev, timer_num, false);
timer_ll_enable_auto_reload(hal->dev, timer_num, false);
timer_ll_enable_alarm(hal->dev, timer_num, false);
// enable RTM subsystem if available
#if SOC_TIMER_SUPPORT_ETM
timer_ll_enable_etm(hal->dev, true);
#endif
}
void timer_hal_deinit(timer_hal_context_t *hal)
{
// disable peripheral clock
timer_ll_enable_clock(hal->dev, hal->timer_id, false);
// ensure counter, alarm, auto-reload are disabled
timer_ll_enable_counter(hal->dev, hal->timer_id, false);
timer_ll_enable_auto_reload(hal->dev, hal->timer_id, false);
timer_ll_enable_alarm(hal->dev, hal->timer_id, false);
#if SOC_TIMER_SUPPORT_ETM
timer_ll_enable_etm(hal->dev, false);
#endif
hal->dev = NULL;
}