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/*
* Copyright (c) 2006-2023, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2018-12-10 zylx first version
* 2020-06-16 thread-liu Porting for stm32mp1
* 2020-08-25 linyongkang Fix the timer clock frequency doubling problem
* 2020-10-14 Dozingfiretruck Porting for stm32wbxx
* 2020-11-18 leizhixiong add STM32H7 series support
*/
#include <rtdevice.h>
#include "drv_config.h"
//#define DRV_DEBUG
#define LOG_TAG "drv.tim"
#include <drv_log.h>
/* APBx timer clocks frequency doubler state related to APB1CLKDivider value */
void stm32_tim_pclkx_doubler_get(rt_uint32_t *pclk1_doubler, rt_uint32_t *pclk2_doubler)
{
rt_uint32_t flatency = 0;
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
RT_ASSERT(pclk1_doubler != RT_NULL);
RT_ASSERT(pclk1_doubler != RT_NULL);
HAL_RCC_GetClockConfig(&RCC_ClkInitStruct, &flatency);
*pclk1_doubler = 1;
*pclk2_doubler = 1;
#if defined(SOC_SERIES_STM32MP1)
if (RCC_ClkInitStruct.APB1_Div != RCC_APB1_DIV1)
{
*pclk1_doubler = 2;
}
if (RCC_ClkInitStruct.APB2_Div != RCC_APB2_DIV1)
{
*pclk2_doubler = 2;
}
#else
if (RCC_ClkInitStruct.APB1CLKDivider != RCC_HCLK_DIV1)
{
*pclk1_doubler = 2;
}
#if !(defined(SOC_SERIES_STM32F0) || defined(SOC_SERIES_STM32G0))
if (RCC_ClkInitStruct.APB2CLKDivider != RCC_HCLK_DIV1)
{
*pclk2_doubler = 2;
}
#endif
#endif
}
#ifdef BSP_USING_TIM
enum
{
#ifdef BSP_USING_TIM1
TIM1_INDEX,
#endif
#ifdef BSP_USING_TIM2
TIM2_INDEX,
#endif
#ifdef BSP_USING_TIM3
TIM3_INDEX,
#endif
#ifdef BSP_USING_TIM4
TIM4_INDEX,
#endif
#ifdef BSP_USING_TIM5
TIM5_INDEX,
#endif
#ifdef BSP_USING_TIM6
TIM6_INDEX,
#endif
#ifdef BSP_USING_TIM7
TIM7_INDEX,
#endif
#ifdef BSP_USING_TIM8
TIM8_INDEX,
#endif
#ifdef BSP_USING_TIM9
TIM9_INDEX,
#endif
#ifdef BSP_USING_TIM10
TIM10_INDEX,
#endif
#ifdef BSP_USING_TIM11
TIM11_INDEX,
#endif
#ifdef BSP_USING_TIM12
TIM12_INDEX,
#endif
#ifdef BSP_USING_TIM13
TIM13_INDEX,
#endif
#ifdef BSP_USING_TIM14
TIM14_INDEX,
#endif
#ifdef BSP_USING_TIM15
TIM15_INDEX,
#endif
#ifdef BSP_USING_TIM16
TIM16_INDEX,
#endif
#ifdef BSP_USING_TIM17
TIM17_INDEX,
#endif
};
struct stm32_hwtimer
{
rt_hwtimer_t time_device;
TIM_HandleTypeDef tim_handle;
IRQn_Type tim_irqn;
char *name;
};
static struct stm32_hwtimer stm32_hwtimer_obj[] =
{
#ifdef BSP_USING_TIM1
TIM1_CONFIG,
#endif
#ifdef BSP_USING_TIM2
TIM2_CONFIG,
#endif
#ifdef BSP_USING_TIM3
TIM3_CONFIG,
#endif
#ifdef BSP_USING_TIM4
TIM4_CONFIG,
#endif
#ifdef BSP_USING_TIM5
TIM5_CONFIG,
#endif
#ifdef BSP_USING_TIM6
TIM6_CONFIG,
#endif
#ifdef BSP_USING_TIM7
TIM7_CONFIG,
#endif
#ifdef BSP_USING_TIM8
TIM8_CONFIG,
#endif
#ifdef BSP_USING_TIM9
TIM9_CONFIG,
#endif
#ifdef BSP_USING_TIM10
TIM10_CONFIG,
#endif
#ifdef BSP_USING_TIM11
TIM11_CONFIG,
#endif
#ifdef BSP_USING_TIM12
TIM12_CONFIG,
#endif
#ifdef BSP_USING_TIM13
TIM13_CONFIG,
#endif
#ifdef BSP_USING_TIM14
TIM14_CONFIG,
#endif
#ifdef BSP_USING_TIM15
TIM15_CONFIG,
#endif
#ifdef BSP_USING_TIM16
TIM16_CONFIG,
#endif
#ifdef BSP_USING_TIM17
TIM17_CONFIG,
#endif
};
static void timer_init(struct rt_hwtimer_device *timer, rt_uint32_t state)
{
uint32_t prescaler_value = 0;
uint32_t pclk1_doubler, pclk2_doubler;
TIM_HandleTypeDef *tim = RT_NULL;
struct stm32_hwtimer *tim_device = RT_NULL;
RT_ASSERT(timer != RT_NULL);
if (state)
{
tim = (TIM_HandleTypeDef *)timer->parent.user_data;
tim_device = (struct stm32_hwtimer *)timer;
stm32_tim_pclkx_doubler_get(&pclk1_doubler, &pclk2_doubler);
/* time init */
/* Some series may only have APBPERIPH_BASE, don't have HAL_RCC_GetPCLK2Freq */
#if defined(APBPERIPH_BASE)
prescaler_value = (uint32_t)(HAL_RCC_GetPCLK1Freq() * pclk1_doubler / 10000) - 1;
#elif defined(APB1PERIPH_BASE) || defined(APB2PERIPH_BASE)
if ((rt_uint32_t)tim->Instance >= APB2PERIPH_BASE)
{
prescaler_value = (uint32_t)(HAL_RCC_GetPCLK2Freq() * pclk2_doubler / 10000) - 1;
}
else
{
prescaler_value = (uint32_t)(HAL_RCC_GetPCLK1Freq() * pclk1_doubler / 10000) - 1;
}
#endif
tim->Init.Period = 10000 - 1;
tim->Init.Prescaler = prescaler_value;
tim->Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;
if (timer->info->cntmode == HWTIMER_CNTMODE_UP)
{
tim->Init.CounterMode = TIM_COUNTERMODE_UP;
}
else
{
tim->Init.CounterMode = TIM_COUNTERMODE_DOWN;
}
tim->Init.RepetitionCounter = 0;
#if defined(SOC_SERIES_STM32F1) || defined(SOC_SERIES_STM32L4) || defined(SOC_SERIES_STM32F0) || defined(SOC_SERIES_STM32G0) || defined(SOC_SERIES_STM32MP1) || defined(SOC_SERIES_STM32WB)
tim->Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE;
#endif
if (HAL_TIM_Base_Init(tim) != HAL_OK)
{
LOG_E("%s init failed", tim_device->name);
return;
}
else
{
/* set the TIMx priority */
HAL_NVIC_SetPriority(tim_device->tim_irqn, 3, 0);
/* enable the TIMx global Interrupt */
HAL_NVIC_EnableIRQ(tim_device->tim_irqn);
/* clear update flag */
__HAL_TIM_CLEAR_FLAG(tim, TIM_FLAG_UPDATE);
/* enable update request source */
__HAL_TIM_URS_ENABLE(tim);
LOG_D("%s init success", tim_device->name);
}
}
}
static rt_err_t timer_start(rt_hwtimer_t *timer, rt_uint32_t t, rt_hwtimer_mode_t opmode)
{
rt_err_t result = RT_EOK;
TIM_HandleTypeDef *tim = RT_NULL;
RT_ASSERT(timer != RT_NULL);
tim = (TIM_HandleTypeDef *)timer->parent.user_data;
/* set tim cnt */
__HAL_TIM_SET_COUNTER(tim, 0);
/* set tim arr */
__HAL_TIM_SET_AUTORELOAD(tim, t - 1);
if (opmode == HWTIMER_MODE_ONESHOT)
{
/* set timer to single mode */
tim->Instance->CR1 |= TIM_OPMODE_SINGLE;
}
else
{
tim->Instance->CR1 &= (~TIM_OPMODE_SINGLE);
}
/* start timer */
if (HAL_TIM_Base_Start_IT(tim) != HAL_OK)
{
LOG_E("TIM start failed");
result = -RT_ERROR;
}
return result;
}
static void timer_stop(rt_hwtimer_t *timer)
{
TIM_HandleTypeDef *tim = RT_NULL;
RT_ASSERT(timer != RT_NULL);
tim = (TIM_HandleTypeDef *)timer->parent.user_data;
/* stop timer */
HAL_TIM_Base_Stop_IT(tim);
/* set tim cnt */
__HAL_TIM_SET_COUNTER(tim, 0);
}
static rt_err_t timer_ctrl(rt_hwtimer_t *timer, rt_uint32_t cmd, void *arg)
{
TIM_HandleTypeDef *tim = RT_NULL;
rt_err_t result = -RT_ERROR;
uint32_t pclk1_doubler, pclk2_doubler;
RT_ASSERT(timer != RT_NULL);
RT_ASSERT(arg != RT_NULL);
tim = (TIM_HandleTypeDef *)timer->parent.user_data;
switch (cmd)
{
case HWTIMER_CTRL_FREQ_SET:
{
rt_uint32_t freq;
rt_uint16_t val;
/* set timer frequence */
freq = *((rt_uint32_t *)arg);
stm32_tim_pclkx_doubler_get(&pclk1_doubler, &pclk2_doubler);
#if defined(SOC_SERIES_STM32F2) || defined(SOC_SERIES_STM32F4) || defined(SOC_SERIES_STM32F7)
if (tim->Instance == TIM9 || tim->Instance == TIM10 || tim->Instance == TIM11)
#elif defined(SOC_SERIES_STM32L4)
if (tim->Instance == TIM15 || tim->Instance == TIM16 || tim->Instance == TIM17)
#elif defined(SOC_SERIES_STM32WB)
if (tim->Instance == TIM16 || tim->Instance == TIM17)
#elif defined(SOC_SERIES_STM32MP1)
if(tim->Instance == TIM14 || tim->Instance == TIM16 || tim->Instance == TIM17)
#elif defined(SOC_SERIES_STM32F1) || defined(SOC_SERIES_STM32F0) || defined(SOC_SERIES_STM32G0) || defined(SOC_SERIES_STM32H7)
if (0)
#else
#error "This driver has not supported this series yet!"
#endif
{
#if !defined(SOC_SERIES_STM32F0) && !defined(SOC_SERIES_STM32G0)
val = HAL_RCC_GetPCLK2Freq() * pclk2_doubler / freq;
#endif
}
else
{
val = HAL_RCC_GetPCLK1Freq() * pclk1_doubler / freq;
}
__HAL_TIM_SET_PRESCALER(tim, val - 1);
/* Update frequency value */
tim->Instance->EGR |= TIM_EVENTSOURCE_UPDATE;
result = RT_EOK;
}
break;
default:
{
result = -RT_EINVAL;
}
break;
}
return result;
}
static rt_uint32_t timer_counter_get(rt_hwtimer_t *timer)
{
TIM_HandleTypeDef *tim = RT_NULL;
RT_ASSERT(timer != RT_NULL);
tim = (TIM_HandleTypeDef *)timer->parent.user_data;
return tim->Instance->CNT;
}
static const struct rt_hwtimer_info _info = TIM_DEV_INFO_CONFIG;
static const struct rt_hwtimer_ops _ops =
{
.init = timer_init,
.start = timer_start,
.stop = timer_stop,
.count_get = timer_counter_get,
.control = timer_ctrl,
};
#ifdef BSP_USING_TIM2
void TIM2_IRQHandler(void)
{
/* enter interrupt */
rt_interrupt_enter();
HAL_TIM_IRQHandler(&stm32_hwtimer_obj[TIM2_INDEX].tim_handle);
/* leave interrupt */
rt_interrupt_leave();
}
#endif
#ifdef BSP_USING_TIM3
void TIM3_IRQHandler(void)
{
/* enter interrupt */
rt_interrupt_enter();
HAL_TIM_IRQHandler(&stm32_hwtimer_obj[TIM3_INDEX].tim_handle);
/* leave interrupt */
rt_interrupt_leave();
}
#endif
#ifdef BSP_USING_TIM4
void TIM4_IRQHandler(void)
{
/* enter interrupt */
rt_interrupt_enter();
HAL_TIM_IRQHandler(&stm32_hwtimer_obj[TIM4_INDEX].tim_handle);
/* leave interrupt */
rt_interrupt_leave();
}
#endif
#ifdef BSP_USING_TIM5
void TIM5_IRQHandler(void)
{
/* enter interrupt */
rt_interrupt_enter();
HAL_TIM_IRQHandler(&stm32_hwtimer_obj[TIM5_INDEX].tim_handle);
/* leave interrupt */
rt_interrupt_leave();
}
#endif
#ifdef BSP_USING_TIM7
void TIM7_IRQHandler(void)
{
/* enter interrupt */
rt_interrupt_enter();
HAL_TIM_IRQHandler(&stm32_hwtimer_obj[TIM7_INDEX].tim_handle);
/* leave interrupt */
rt_interrupt_leave();
}
#endif
#ifdef BSP_USING_TIM11
void TIM1_TRG_COM_TIM11_IRQHandler(void)
{
/* enter interrupt */
rt_interrupt_enter();
HAL_TIM_IRQHandler(&stm32_hwtimer_obj[TIM11_INDEX].tim_handle);
/* leave interrupt */
rt_interrupt_leave();
}
#endif
#ifdef BSP_USING_TIM13
void TIM8_UP_TIM13_IRQHandler(void)
{
/* enter interrupt */
rt_interrupt_enter();
HAL_TIM_IRQHandler(&stm32_hwtimer_obj[TIM13_INDEX].tim_handle);
/* leave interrupt */
rt_interrupt_leave();
}
#endif
#ifdef BSP_USING_TIM14
#if defined(SOC_SERIES_STM32F4) || defined(SOC_SERIES_STM32F7)
void TIM8_TRG_COM_TIM14_IRQHandler(void)
#elif defined(SOC_SERIES_STM32F0) || defined(SOC_SERIES_STM32MP1)
void TIM14_IRQHandler(void)
#endif
{
/* enter interrupt */
rt_interrupt_enter();
HAL_TIM_IRQHandler(&stm32_hwtimer_obj[TIM14_INDEX].tim_handle);
/* leave interrupt */
rt_interrupt_leave();
}
#endif
#ifdef BSP_USING_TIM15
void TIM1_BRK_TIM15_IRQHandler(void)
{
/* enter interrupt */
rt_interrupt_enter();
HAL_TIM_IRQHandler(&stm32_hwtimer_obj[TIM15_INDEX].tim_handle);
/* leave interrupt */
rt_interrupt_leave();
}
#endif
#ifdef BSP_USING_TIM16
#if defined(SOC_SERIES_STM32L4) || defined(SOC_SERIES_STM32WB)
void TIM1_UP_TIM16_IRQHandler(void)
#elif defined(SOC_SERIES_STM32F0) || defined(SOC_SERIES_STM32MP1)
void TIM16_IRQHandler(void)
#endif
{
/* enter interrupt */
rt_interrupt_enter();
HAL_TIM_IRQHandler(&stm32_hwtimer_obj[TIM16_INDEX].tim_handle);
/* leave interrupt */
rt_interrupt_leave();
}
#endif
#ifdef BSP_USING_TIM17
#if defined(SOC_SERIES_STM32L4) || defined(SOC_SERIES_STM32WB)
void TIM1_TRG_COM_TIM17_IRQHandler(void)
#elif defined(SOC_SERIES_STM32F0) || defined(SOC_SERIES_STM32MP1)
void TIM17_IRQHandler(void)
#endif
{
/* enter interrupt */
rt_interrupt_enter();
HAL_TIM_IRQHandler(&stm32_hwtimer_obj[TIM17_INDEX].tim_handle);
/* leave interrupt */
rt_interrupt_leave();
}
#endif
void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim)
{
#ifdef BSP_USING_TIM2
if (htim->Instance == TIM2)
{
rt_device_hwtimer_isr(&stm32_hwtimer_obj[TIM2_INDEX].time_device);
}
#endif
#ifdef BSP_USING_TIM3
if (htim->Instance == TIM3)
{
rt_device_hwtimer_isr(&stm32_hwtimer_obj[TIM3_INDEX].time_device);
}
#endif
#ifdef BSP_USING_TIM4
if (htim->Instance == TIM4)
{
rt_device_hwtimer_isr(&stm32_hwtimer_obj[TIM4_INDEX].time_device);
}
#endif
#ifdef BSP_USING_TIM5
if (htim->Instance == TIM5)
{
rt_device_hwtimer_isr(&stm32_hwtimer_obj[TIM5_INDEX].time_device);
}
#endif
#ifdef BSP_USING_TIM7
if (htim->Instance == TIM7)
{
rt_device_hwtimer_isr(&stm32_hwtimer_obj[TIM7_INDEX].time_device);
}
#endif
#ifdef BSP_USING_TIM11
if (htim->Instance == TIM11)
{
rt_device_hwtimer_isr(&stm32_hwtimer_obj[TIM11_INDEX].time_device);
}
#endif
#ifdef BSP_USING_TIM13
if (htim->Instance == TIM13)
{
rt_device_hwtimer_isr(&stm32_hwtimer_obj[TIM13_INDEX].time_device);
}
#endif
#ifdef BSP_USING_TIM14
if (htim->Instance == TIM14)
{
rt_device_hwtimer_isr(&stm32_hwtimer_obj[TIM14_INDEX].time_device);
}
#endif
#ifdef BSP_USING_TIM15
if (htim->Instance == TIM15)
{
rt_device_hwtimer_isr(&stm32_hwtimer_obj[TIM15_INDEX].time_device);
}
#endif
#ifdef BSP_USING_TIM16
if (htim->Instance == TIM16)
{
rt_device_hwtimer_isr(&stm32_hwtimer_obj[TIM16_INDEX].time_device);
}
#endif
#ifdef BSP_USING_TIM17
if (htim->Instance == TIM17)
{
rt_device_hwtimer_isr(&stm32_hwtimer_obj[TIM17_INDEX].time_device);
}
#endif
}
static int stm32_hwtimer_init(void)
{
int i = 0;
int result = RT_EOK;
for (i = 0; i < sizeof(stm32_hwtimer_obj) / sizeof(stm32_hwtimer_obj[0]); i++)
{
stm32_hwtimer_obj[i].time_device.info = &_info;
stm32_hwtimer_obj[i].time_device.ops = &_ops;
if (rt_device_hwtimer_register(&stm32_hwtimer_obj[i].time_device,
stm32_hwtimer_obj[i].name, &stm32_hwtimer_obj[i].tim_handle) == RT_EOK)
{
LOG_D("%s register success", stm32_hwtimer_obj[i].name);
}
else
{
LOG_E("%s register failed", stm32_hwtimer_obj[i].name);
result = -RT_ERROR;
}
}
return result;
}
INIT_BOARD_EXPORT(stm32_hwtimer_init);
#endif /* BSP_USING_TIM */
|
