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/*
* Copyright (c) 2006-2018, Synwit Technology Co.,Ltd.
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2018-12-10 Zohar_Lee first version
*/
#include <rthw.h>
#include <rtthread.h>
#include <rtdevice.h>
#include <board.h>
#define SWM320_HWTIMER_DEVICE(hwtimer) (struct swm320_hwtimer_dev *)(hwtimer)
struct swm320_hwtimer_dev
{
rt_hwtimer_t parent;
TIMR_TypeDef *hwtimer_periph;
};
#ifdef BSP_USING_HWTIMER0
static struct swm320_hwtimer_dev hwtimer0;
void TIMR0_Handler(void)
{
TIMR_INTClr(TIMR0);
rt_device_hwtimer_isr(&hwtimer0.parent);
if (HWTIMER_MODE_ONESHOT == hwtimer0.parent.mode)
{
TIMR_Stop(hwtimer0.hwtimer_periph);
}
}
#endif //BSP_USING_HWTIMER0
#ifdef BSP_USING_HWTIMER1
static struct swm320_hwtimer_dev hwtimer1;
void TIMR1_Handler(void)
{
TIMR_INTClr(TIMR1);
rt_device_hwtimer_isr(&hwtimer1.parent);
if (HWTIMER_MODE_ONESHOT == hwtimer1.parent.mode)
{
TIMR_Stop(hwtimer1.hwtimer_periph);
}
}
#endif //BSP_USING_HWTIMER1
#ifdef BSP_USING_HWTIMER2
static struct swm320_hwtimer_dev hwtimer2;
void TIMR2_Handler(void)
{
TIMR_INTClr(TIMR2);
rt_device_hwtimer_isr(&hwtimer2.parent);
if (HWTIMER_MODE_ONESHOT == hwtimer2.parent.mode)
{
TIMR_Stop(hwtimer2.hwtimer_periph);
}
}
#endif //BSP_USING_HWTIMER2
#ifdef BSP_USING_HWTIMER3
static struct swm320_hwtimer_dev hwtimer3;
void TIMR3_Handler(void)
{
TIMR_INTClr(TIMR3);
rt_device_hwtimer_isr(&hwtimer3.parent);
if (HWTIMER_MODE_ONESHOT == hwtimer3.parent.mode)
{
TIMR_Stop(hwtimer3.hwtimer_periph);
}
}
#endif //BSP_USING_HWTIMER3
#ifdef BSP_USING_HWTIMER4
static struct swm320_hwtimer_dev hwtimer4;
void TIMR4_Handler(void)
{
TIMR_INTClr(TIMR4);
rt_device_hwtimer_isr(&hwtimer4.parent);
if (HWTIMER_MODE_ONESHOT == hwtimer4.parent.mode)
{
TIMR_Stop(hwtimer4.hwtimer_periph);
}
}
#endif //BSP_USING_HWTIMER4
#ifdef BSP_USING_HWTIMER5
static struct swm320_hwtimer_dev hwtimer5;
void TIMR5_Handler(void)
{
TIMR_INTClr(TIMR5);
rt_device_hwtimer_isr(&hwtimer5.parent);
if (HWTIMER_MODE_ONESHOT == hwtimer5.parent.mode)
{
TIMR_Stop(hwtimer5.hwtimer_periph);
}
}
#endif //BSP_USING_HWTIMER5
static struct rt_hwtimer_info swm320_hwtimer_info =
{
120000000, /*时钟源为系统时钟*/
120000000,
4294967295, /*32位计数器，2的32次方*/
HWTIMER_CNTMODE_DW
};
static void swm320_hwtimer_init(rt_hwtimer_t *timer, rt_uint32_t state)
{
struct swm320_hwtimer_dev *hwtimer = SWM320_HWTIMER_DEVICE(timer->parent.user_data);
RT_ASSERT(hwtimer != RT_NULL);
if (1 == state)
{
TIMR_Init(hwtimer->hwtimer_periph,
TIMR_MODE_TIMER,
SystemCoreClock,
1);
}
hwtimer->parent.freq = SystemCoreClock;
swm320_hwtimer_info.maxfreq = SystemCoreClock;
swm320_hwtimer_info.minfreq = SystemCoreClock;
}
static rt_err_t swm320_hwtimer_start(rt_hwtimer_t *timer,
rt_uint32_t cnt,
rt_hwtimer_mode_t mode)
{
struct swm320_hwtimer_dev *hwtimer = SWM320_HWTIMER_DEVICE(timer->parent.user_data);
RT_ASSERT(hwtimer != RT_NULL);
TIMR_SetPeriod(hwtimer->hwtimer_periph, cnt);
TIMR_Start(hwtimer->hwtimer_periph);
return RT_EOK;
}
static void swm320_hwtimer_stop(rt_hwtimer_t *timer)
{
struct swm320_hwtimer_dev *hwtimer = SWM320_HWTIMER_DEVICE(timer->parent.user_data);
RT_ASSERT(hwtimer != RT_NULL);
TIMR_Stop(hwtimer->hwtimer_periph);
}
static rt_uint32_t swm320_hwtimer_count_get(rt_hwtimer_t *timer)
{
struct swm320_hwtimer_dev *hwtimer = SWM320_HWTIMER_DEVICE(timer->parent.user_data);
uint32_t hwtimer_count = 0;
RT_ASSERT(hwtimer != RT_NULL);
hwtimer_count = TIMR_GetCurValue(hwtimer->hwtimer_periph);
return hwtimer_count;
}
static rt_err_t swm320_hwtimer_control(rt_hwtimer_t *timer,
rt_uint32_t cmd,
void *args)
{
rt_err_t ret = RT_EOK;
rt_uint32_t freq = 0;
struct swm320_hwtimer_dev *hwtimer = SWM320_HWTIMER_DEVICE(timer->parent.user_data);
RT_ASSERT(hwtimer != RT_NULL);
switch (cmd)
{
case HWTIMER_CTRL_FREQ_SET:
freq = *(rt_uint32_t*)args;
if (freq != SystemCoreClock)
{
ret = RT_EINVAL;
}
break;
case HWTIMER_CTRL_STOP:
TIMR_Stop(hwtimer->hwtimer_periph);
break;
default:
ret = RT_EINVAL;
break;
}
return ret;
}
static struct rt_hwtimer_ops swm320_hwtimer_ops =
{
swm320_hwtimer_init,
swm320_hwtimer_start,
swm320_hwtimer_stop,
swm320_hwtimer_count_get,
swm320_hwtimer_control
};
int rt_hw_hwtimer_init(void)
{
rt_err_t ret = RT_EOK;
#ifdef BSP_USING_HWTIMER0
hwtimer0.hwtimer_periph = TIMR0;
hwtimer0.parent.info = &swm320_hwtimer_info;
hwtimer0.parent.ops = &swm320_hwtimer_ops;
ret = rt_device_hwtimer_register(&hwtimer0.parent, "timer0", &hwtimer0);
#endif //BSP_USING_HWTIMER0
#ifdef BSP_USING_HWTIMER1
hwtimer1.hwtimer_periph = TIMR1;
hwtimer1.parent.info = &swm320_hwtimer_info;
hwtimer1.parent.ops = &swm320_hwtimer_ops;
ret = rt_device_hwtimer_register(&hwtimer1.parent, "timer1", &hwtimer1);
#endif //BSP_USING_HWTIMER1
#ifdef BSP_USING_HWTIMER2
hwtimer2.hwtimer_periph = TIMR2;
hwtimer2.parent.info = &swm320_hwtimer_info;
hwtimer2.parent.ops = &swm320_hwtimer_ops;
ret = rt_device_hwtimer_register(&hwtimer2.parent, "timer2", &hwtimer2);
#endif //BSP_USING_HWTIMER2
#ifdef BSP_USING_HWTIMER3
hwtimer3.hwtimer_periph = TIMR3;
hwtimer3.parent.info = &swm320_hwtimer_info;
hwtimer3.parent.ops = &swm320_hwtimer_ops;
ret = rt_device_hwtimer_register(&hwtimer3.parent, "timer3", &hwtimer3);
#endif //BSP_USING_HWTIMER3
#ifdef BSP_USING_HWTIMER4
hwtimer4.hwtimer_periph = TIMR4;
hwtimer4.parent.info = &swm320_hwtimer_info;
hwtimer4.parent.ops = &swm320_hwtimer_ops;
ret = rt_device_hwtimer_register(&hwtimer4.parent, "timer4", &hwtimer4);
#endif //BSP_USING_HWTIMER4
#ifdef BSP_USING_HWTIMER5
hwtimer5.hwtimer_periph = TIMR5;
hwtimer5.parent.info = &swm320_hwtimer_info;
hwtimer5.parent.ops = &swm320_hwtimer_ops;
ret = rt_device_hwtimer_register(&hwtimer5.parent, "timer5", &hwtimer5);
#endif //BSP_USING_HWTIMER5
return ret;
}
INIT_BOARD_EXPORT(rt_hw_hwtimer_init);
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