326 lines
8.1 KiB
C
326 lines
8.1 KiB
C
/**************************************************************************//**
|
|
*
|
|
* @copyright (C) 2020 Nuvoton Technology Corp. All rights reserved.
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*
|
|
* Change Logs:
|
|
* Date Author Notes
|
|
* 2020-2-7 YCHuang12 First version
|
|
*
|
|
******************************************************************************/
|
|
|
|
#include <rtconfig.h>
|
|
|
|
#if (defined(BSP_USING_TIMER) && defined(RT_USING_HWTIMER))
|
|
|
|
#include <rtdevice.h>
|
|
#include "NuMicro.h"
|
|
|
|
/* Private define ---------------------------------------------------------------*/
|
|
#define NU_TIMER_DEVICE(timer) (nu_timer_t *)(timer)
|
|
|
|
/* Private typedef --------------------------------------------------------------*/
|
|
typedef struct nu_timer
|
|
{
|
|
rt_hwtimer_t parent;
|
|
TIMER_T *timer_periph;
|
|
IRQn_Type IRQn;
|
|
} nu_timer_t;
|
|
|
|
/* Private functions ------------------------------------------------------------*/
|
|
static void nu_timer_init(rt_hwtimer_t *timer, rt_uint32_t state);
|
|
static rt_err_t nu_timer_start(rt_hwtimer_t *timer, rt_uint32_t cnt, rt_hwtimer_mode_t opmode);
|
|
static void nu_timer_stop(rt_hwtimer_t *timer);
|
|
static rt_uint32_t nu_timer_count_get(rt_hwtimer_t *timer);
|
|
static rt_err_t nu_timer_control(rt_hwtimer_t *timer, rt_uint32_t cmd, void *args);
|
|
|
|
/* Public functions -------------------------------------------------------------*/
|
|
|
|
|
|
/* Private variables ------------------------------------------------------------*/
|
|
#ifdef BSP_USING_TIMER0
|
|
static nu_timer_t nu_timer0;
|
|
#endif
|
|
|
|
#ifdef BSP_USING_TIMER1
|
|
static nu_timer_t nu_timer1;
|
|
#endif
|
|
|
|
#ifdef BSP_USING_TIMER2
|
|
static nu_timer_t nu_timer2;
|
|
#endif
|
|
|
|
#ifdef BSP_USING_TIMER3
|
|
static nu_timer_t nu_timer3;
|
|
#endif
|
|
|
|
static struct rt_hwtimer_info nu_timer_info =
|
|
{
|
|
12000000, /* maximum count frequency */
|
|
46875, /* minimum count frequency */
|
|
0xFFFFFF, /* the maximum counter value */
|
|
HWTIMER_CNTMODE_UP,/* Increment or Decreasing count mode */
|
|
};
|
|
|
|
static struct rt_hwtimer_ops nu_timer_ops =
|
|
{
|
|
nu_timer_init,
|
|
nu_timer_start,
|
|
nu_timer_stop,
|
|
nu_timer_count_get,
|
|
nu_timer_control
|
|
};
|
|
|
|
/* Functions define ------------------------------------------------------------*/
|
|
static void nu_timer_init(rt_hwtimer_t *timer, rt_uint32_t state)
|
|
{
|
|
RT_ASSERT(timer != RT_NULL);
|
|
|
|
nu_timer_t *nu_timer = NU_TIMER_DEVICE(timer->parent.user_data);
|
|
RT_ASSERT(nu_timer != RT_NULL);
|
|
RT_ASSERT(nu_timer->timer_periph != RT_NULL);
|
|
|
|
if (1 == state)
|
|
{
|
|
uint32_t timer_clk;
|
|
struct rt_hwtimer_info *info = &nu_timer_info;
|
|
|
|
timer_clk = TIMER_GetModuleClock(nu_timer->timer_periph);
|
|
info->maxfreq = timer_clk;
|
|
info->minfreq = timer_clk / 256;
|
|
TIMER_Open(nu_timer->timer_periph, TIMER_ONESHOT_MODE, 1);
|
|
TIMER_EnableInt(nu_timer->timer_periph);
|
|
NVIC_EnableIRQ(nu_timer->IRQn);
|
|
}
|
|
else
|
|
{
|
|
NVIC_DisableIRQ(nu_timer->IRQn);
|
|
TIMER_DisableInt(nu_timer->timer_periph);
|
|
TIMER_Close(nu_timer->timer_periph);
|
|
}
|
|
}
|
|
|
|
static rt_err_t nu_timer_start(rt_hwtimer_t *timer, rt_uint32_t cnt, rt_hwtimer_mode_t opmode)
|
|
{
|
|
rt_err_t err = RT_EOK;
|
|
RT_ASSERT(timer != RT_NULL);
|
|
|
|
nu_timer_t *nu_timer = NU_TIMER_DEVICE(timer->parent.user_data);
|
|
RT_ASSERT(nu_timer != RT_NULL);
|
|
RT_ASSERT(nu_timer->timer_periph != RT_NULL);
|
|
|
|
if (cnt > 1 && cnt <= 0xFFFFFF)
|
|
{
|
|
TIMER_SET_CMP_VALUE(nu_timer->timer_periph, cnt);
|
|
}
|
|
else
|
|
{
|
|
rt_kprintf("nu_timer_start set compared value failed\n");
|
|
err = -RT_ERROR;
|
|
}
|
|
|
|
if (HWTIMER_MODE_PERIOD == opmode)
|
|
{
|
|
TIMER_SET_OPMODE(nu_timer->timer_periph, TIMER_PERIODIC_MODE);
|
|
}
|
|
else if (HWTIMER_MODE_ONESHOT == opmode)
|
|
{
|
|
TIMER_SET_OPMODE(nu_timer->timer_periph, TIMER_ONESHOT_MODE);
|
|
}
|
|
else
|
|
{
|
|
rt_kprintf("nu_timer_start set operation mode failed\n");
|
|
err = -RT_ERROR;
|
|
}
|
|
|
|
TIMER_Start(nu_timer->timer_periph);
|
|
|
|
return err;
|
|
}
|
|
|
|
static void nu_timer_stop(rt_hwtimer_t *timer)
|
|
{
|
|
RT_ASSERT(timer != RT_NULL);
|
|
|
|
nu_timer_t *nu_timer = NU_TIMER_DEVICE(timer->parent.user_data);
|
|
RT_ASSERT(nu_timer != RT_NULL);
|
|
RT_ASSERT(nu_timer->timer_periph != RT_NULL);
|
|
|
|
TIMER_Stop(nu_timer->timer_periph);
|
|
}
|
|
|
|
static rt_uint32_t nu_timer_count_get(rt_hwtimer_t *timer)
|
|
{
|
|
RT_ASSERT(timer != RT_NULL);
|
|
|
|
nu_timer_t *nu_timer = NU_TIMER_DEVICE(timer->parent.user_data);
|
|
RT_ASSERT(nu_timer != RT_NULL);
|
|
RT_ASSERT(nu_timer->timer_periph != RT_NULL);
|
|
|
|
return TIMER_GetCounter(nu_timer->timer_periph);
|
|
}
|
|
|
|
static rt_err_t nu_timer_control(rt_hwtimer_t *timer, rt_uint32_t cmd, void *args)
|
|
{
|
|
rt_err_t ret = RT_EOK;
|
|
|
|
RT_ASSERT(timer != RT_NULL);
|
|
|
|
nu_timer_t *nu_timer = NU_TIMER_DEVICE(timer->parent.user_data);
|
|
RT_ASSERT(nu_timer != RT_NULL);
|
|
RT_ASSERT(nu_timer->timer_periph != RT_NULL);
|
|
|
|
switch (cmd)
|
|
{
|
|
case HWTIMER_CTRL_FREQ_SET:
|
|
{
|
|
uint32_t clk;
|
|
uint32_t pre;
|
|
|
|
clk = TIMER_GetModuleClock(nu_timer->timer_periph);
|
|
pre = clk / *((uint32_t *)args) - 1;
|
|
TIMER_SET_PRESCALE_VALUE(nu_timer->timer_periph, pre);
|
|
*((uint32_t *)args) = clk / (pre + 1) ;
|
|
}
|
|
break;
|
|
|
|
case HWTIMER_CTRL_STOP:
|
|
TIMER_Stop(nu_timer->timer_periph);
|
|
break;
|
|
|
|
default:
|
|
ret = -RT_EINVAL;
|
|
break;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
int rt_hw_timer_init(void)
|
|
{
|
|
rt_err_t ret = RT_EOK;
|
|
|
|
#ifdef BSP_USING_TIMER0
|
|
nu_timer0.timer_periph = TIMER0;
|
|
nu_timer0.parent.info = &nu_timer_info;
|
|
nu_timer0.parent.ops = &nu_timer_ops;
|
|
nu_timer0.IRQn = TMR0_IRQn;
|
|
ret = rt_device_hwtimer_register(&nu_timer0.parent, "timer0", &nu_timer0);
|
|
if (ret != RT_EOK)
|
|
{
|
|
rt_kprintf("timer0 register failed\n");
|
|
}
|
|
SYS_ResetModule(TMR0_RST);
|
|
CLK_EnableModuleClock(TMR0_MODULE);
|
|
#endif
|
|
|
|
#ifdef BSP_USING_TIMER1
|
|
nu_timer1.timer_periph = TIMER1;
|
|
nu_timer1.parent.info = &nu_timer_info;
|
|
nu_timer1.parent.ops = &nu_timer_ops;
|
|
nu_timer1.IRQn = TMR1_IRQn;
|
|
ret = rt_device_hwtimer_register(&nu_timer1.parent, "timer1", &nu_timer1);
|
|
if (ret != RT_EOK)
|
|
{
|
|
rt_kprintf("timer1 register failed\n");
|
|
}
|
|
SYS_ResetModule(TMR1_RST);
|
|
CLK_EnableModuleClock(TMR1_MODULE);
|
|
#endif
|
|
|
|
#ifdef BSP_USING_TIMER2
|
|
nu_timer2.timer_periph = TIMER2;
|
|
nu_timer2.parent.info = &nu_timer_info;
|
|
nu_timer2.parent.ops = &nu_timer_ops;
|
|
nu_timer2.IRQn = TMR2_IRQn;
|
|
ret = rt_device_hwtimer_register(&nu_timer2.parent, "timer2", &nu_timer2);
|
|
if (ret != RT_EOK)
|
|
{
|
|
rt_kprintf("timer2 register failed\n");
|
|
}
|
|
SYS_ResetModule(TMR2_RST);
|
|
CLK_EnableModuleClock(TMR2_MODULE);
|
|
#endif
|
|
|
|
#ifdef BSP_USING_TIMER3
|
|
nu_timer3.timer_periph = TIMER3;
|
|
nu_timer3.parent.info = &nu_timer_info;
|
|
nu_timer3.parent.ops = &nu_timer_ops;
|
|
nu_timer3.IRQn = TMR3_IRQn;
|
|
ret = rt_device_hwtimer_register(&nu_timer3.parent, "timer3", &nu_timer3);
|
|
if (ret != RT_EOK)
|
|
{
|
|
rt_kprintf("timer3 register failed\n");
|
|
}
|
|
SYS_ResetModule(TMR3_RST);
|
|
CLK_EnableModuleClock(TMR3_MODULE);
|
|
#endif
|
|
|
|
return ret;
|
|
}
|
|
|
|
INIT_BOARD_EXPORT(rt_hw_timer_init);
|
|
|
|
#ifdef BSP_USING_TIMER0
|
|
void TMR0_IRQHandler(void)
|
|
{
|
|
rt_interrupt_enter();
|
|
|
|
if (TIMER_GetIntFlag(TIMER0))
|
|
{
|
|
TIMER_ClearIntFlag(TIMER0);
|
|
rt_device_hwtimer_isr(&nu_timer0.parent);
|
|
}
|
|
|
|
rt_interrupt_leave();
|
|
}
|
|
#endif
|
|
|
|
#ifdef BSP_USING_TIMER1
|
|
void TMR1_IRQHandler(void)
|
|
{
|
|
rt_interrupt_enter();
|
|
|
|
if (TIMER_GetIntFlag(TIMER1))
|
|
{
|
|
TIMER_ClearIntFlag(TIMER1);
|
|
rt_device_hwtimer_isr(&nu_timer1.parent);
|
|
}
|
|
|
|
rt_interrupt_leave();
|
|
}
|
|
#endif
|
|
|
|
#ifdef BSP_USING_TIMER2
|
|
void TMR2_IRQHandler(void)
|
|
{
|
|
rt_interrupt_enter();
|
|
|
|
if (TIMER_GetIntFlag(TIMER2))
|
|
{
|
|
TIMER_ClearIntFlag(TIMER2);
|
|
rt_device_hwtimer_isr(&nu_timer2.parent);
|
|
}
|
|
|
|
rt_interrupt_leave();
|
|
}
|
|
#endif
|
|
|
|
#ifdef BSP_USING_TIMER3
|
|
void TMR3_IRQHandler(void)
|
|
{
|
|
rt_interrupt_enter();
|
|
|
|
if (TIMER_GetIntFlag(TIMER3))
|
|
{
|
|
TIMER_ClearIntFlag(TIMER3);
|
|
rt_device_hwtimer_isr(&nu_timer3.parent);
|
|
}
|
|
|
|
rt_interrupt_leave();
|
|
}
|
|
#endif
|
|
|
|
#endif //#if (defined(BSP_USING_TIMER) && defined(RT_USING_HWTIMER))
|