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/*
* Copyright (c) 2006-2023, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2023-10-30 ChuShicheng first version
*/
#include "drv_timer.h"
#include "board.h"
#ifdef BSP_USING_CLOCK_TIMER
#define DBG_LEVEL DBG_LOG
#include <rtdbg.h>
#define LOG_TAG "DRV.CLOCK_TIMER"
typedef struct _timer
{
char *name;
struct repeating_timer repeat_timer;
alarm_id_t alarm_id;
rt_clock_timer_t timer;
}_timer_t;
static void _clock_timer_init(rt_clock_timer_t *timer, rt_uint32_t state);
static rt_err_t _clock_timer_start(rt_clock_timer_t *timer, rt_uint32_t cnt, rt_clock_timer_mode_t mode);
static void _clock_timer_stop(rt_clock_timer_t *timer);
static rt_uint32_t _clock_timer_count_get(rt_clock_timer_t *timer);
static rt_err_t _clock_timer_control(rt_clock_timer_t *timer, rt_uint32_t cmd, void *args);
static int64_t _hwtmr_isr(alarm_id_t id, void *user_data);
static const struct rt_clock_timer_ops _clock_timer_ops = {
.init = _clock_timer_init,
.start = _clock_timer_start,
.stop = _clock_timer_stop,
.count_get = _clock_timer_count_get,
.control = _clock_timer_control
};
static const struct rt_clock_timer_info _clock_timer_info = {
.maxfreq = 1000000UL,
.minfreq = 1000000UL,
.maxcnt = 0xFFFF,
.cntmode = CLOCK_TIMER_MODE_PERIOD
};
#ifdef BSP_USING_TIMER0
static _timer_t timer0 = {.name = "timer0"};
#endif /* BSP_USING_TIMER0 */
#ifdef BSP_USING_TIMER1
static _timer_t timer1 = {.name = "timer1" };
#endif /* BSP_USING_TIMER1 */
#ifdef BSP_USING_TIMER2
static _timer_t timer2 = {.name = "timer2"};
#endif /* BSP_USING_TIMER2 */
#ifdef BSP_USING_TIMER3
static _timer_t timer3 = {.name = "timer3" };
#endif /* BSP_USING_TIMER3 */
static _timer_t *_timer_obj[] = {
#ifdef BSP_USING_TIMER0
&timer0,
#endif /* BSP_USING_TIMER0 */
#ifdef BSP_USING_TIMER1
&timer1,
#endif /* BSP_USING_TIMER1 */
#ifdef BSP_USING_TIMER2
&timer2,
#endif /* BSP_USING_TIMER2 */
#ifdef BSP_USING_TIMER3
&timer3,
#endif /* BSP_USING_TIMER3 */
};
static int64_t _hwtmr_isr(alarm_id_t id, void *user_data)
{
_timer_t *_tmr = rt_container_of(id, _timer_t, alarm_id);
rt_clock_timer_isr(&_tmr->timer);
return RT_TRUE;
}
static bool _repeat_timer_isr(struct repeating_timer *t)
{
_timer_t *_tmr = rt_container_of(t, _timer_t, repeat_timer);
rt_clock_timer_isr(&_tmr->timer);
return RT_TRUE;
}
static void _clock_timer_init(rt_clock_timer_t *timer, rt_uint32_t state)
{
}
static rt_err_t _clock_timer_start(rt_clock_timer_t *timer, rt_uint32_t cnt, rt_clock_timer_mode_t mode)
{
_timer_t *_tmr = rt_container_of(timer, _timer_t, timer);
if(mode == CLOCK_TIMER_MODE_ONESHOT)
_tmr->alarm_id = add_alarm_in_us(cnt, _hwtmr_isr, RT_NULL, RT_TRUE);
else
add_repeating_timer_us(cnt, _repeat_timer_isr, RT_NULL, &_tmr->repeat_timer);
return RT_EOK;
}
static void _clock_timer_stop(rt_clock_timer_t *timer)
{
_timer_t *_tmr = rt_container_of(timer, _timer_t, timer);
if(timer->mode == CLOCK_TIMER_MODE_ONESHOT)
cancel_alarm(_tmr->alarm_id);
else
cancel_repeating_timer(&_tmr->repeat_timer);
}
static rt_uint32_t _clock_timer_count_get(rt_clock_timer_t *timer)
{
_timer_t *_tmr = rt_container_of(timer, _timer_t, timer);
return timer_hw->alarm[_tmr->alarm_id];
}
static rt_err_t _clock_timer_control(rt_clock_timer_t *timer, rt_uint32_t cmd, void *args)
{
rt_err_t err = RT_EOK;
_timer_t *_tmr = rt_container_of(timer, _timer_t, timer);
switch (cmd)
{
case CLOCK_TIMER_CTRL_FREQ_SET:
err = -RT_ERROR;
break;
case CLOCK_TIMER_CTRL_INFO_GET:
*(rt_clock_timer_t*)args = _tmr->timer;
break;
case CLOCK_TIMER_CTRL_MODE_SET:
_tmr->timer.mode = *(rt_uint32_t*)args;
break;
case CLOCK_TIMER_CTRL_STOP:
_clock_timer_stop(timer);
break;
}
return err;
}
int rt_hw_clock_timer_init(void)
{
int ret = RT_EOK;
for (uint32_t i = 0; i < sizeof(_timer_obj) / sizeof(_timer_obj[0]); i++)
{
_timer_obj[i]->timer.info = &_clock_timer_info;
_timer_obj[i]->timer.ops = &_clock_timer_ops;
ret = rt_clock_timer_register(&_timer_obj[i]->timer, _timer_obj[i]->name, _timer_obj[i]);
if (ret != RT_EOK)
{
LOG_E("%s register failed", _timer_obj[i]->name);
}
}
return ret;
}
INIT_DEVICE_EXPORT(rt_hw_clock_timer_init);
#endif /* BSP_USING_CLOCK_TIMER */
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