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CommandStation-EX/Gigatimer.c
travis-farmer 10a4d1632a including timer library into code source
2023-10-28 15:02:55 -04:00

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/****************************************************************************************************************************
timer.c
For Portenta_H7 boards
Written by Khoi Hoang
Built by Khoi Hoang https://github.com/khoih-prog/Portenta_H7_TimerInterrupt
Licensed under MIT license
Now even you use all these new 16 ISR-based timers,with their maximum interval practically unlimited (limited only by
unsigned long miliseconds), you just consume only one Portenta_H7 STM32 timer and avoid conflicting with other cores' tasks.
The accuracy is nearly perfect compared to software timers. The most important feature is they're ISR-based timers
Therefore, their executions are not blocked by bad-behaving functions / tasks.
This important feature is absolutely necessary for mission-critical tasks.
Version: 1.4.0
Version Modified By Date Comments
------- ----------- ---------- -----------
1.2.1 K.Hoang 15/09/2021 Initial coding for Portenta_H7
1.3.0 K.Hoang 17/09/2021 Add PWM features and examples
1.3.1 K.Hoang 21/09/2021 Fix warnings in PWM examples
1.4.0 K.Hoang 22/01/2022 Fix `multiple-definitions` linker error. Fix bug
*****************************************************************************************************************************/
// Modified from stm32 core v2.0.0
/*
*******************************************************************************
Copyright (c) 2019, STMicroelectronics
All rights reserved.
This software component is licensed by ST under BSD 3-Clause license,
the "License"; You may not use this file except in compliance with the
License. You may obtain a copy of the License at:
opensource.org/licenses/BSD-3-Clause
*******************************************************************************
*/
#if defined(ARDUINO_GIGA)
#include "Gigatimer.h"
#ifdef __cplusplus
extern "C" {
#endif
#if defined(HAL_TIM_MODULE_ENABLED) && !defined(HAL_TIM_MODULE_ONLY)
/* Private Functions */
/* Aim of the function is to get _timerObj pointer using htim pointer */
/* Highly inspired from magical linux kernel's "container_of" */
/* (which was not directly used since not compatible with IAR toolchain) */
timerObj_t *get_timer_obj(TIM_HandleTypeDef *htim)
{
timerObj_t *obj;
obj = (timerObj_t *)((char *)htim - offsetof(timerObj_t, handle));
return (obj);
}
/**
@brief TIMER Initialization - clock init and nvic init
@param htim_base: TIM handle
@retval None
*/
void HAL_TIM_Base_MspInit(TIM_HandleTypeDef *htim_base)
{
timerObj_t *obj = get_timer_obj(htim_base);
enableTimerClock(htim_base);
// configure Update interrupt
HAL_NVIC_SetPriority(getTimerUpIrq(htim_base->Instance), obj->preemptPriority, obj->subPriority);
HAL_NVIC_EnableIRQ(getTimerUpIrq(htim_base->Instance));
if (getTimerCCIrq(htim_base->Instance) != getTimerUpIrq(htim_base->Instance))
{
// configure Capture Compare interrupt
HAL_NVIC_SetPriority(getTimerCCIrq(htim_base->Instance), obj->preemptPriority, obj->subPriority);
HAL_NVIC_EnableIRQ(getTimerCCIrq(htim_base->Instance));
}
}
/**
@brief TIMER Deinitialization - clock and nvic
@param htim_base: TIM handle
@retval None
*/
void HAL_TIM_Base_MspDeInit(TIM_HandleTypeDef *htim_base)
{
disableTimerClock(htim_base);
HAL_NVIC_DisableIRQ(getTimerUpIrq(htim_base->Instance));
HAL_NVIC_DisableIRQ(getTimerCCIrq(htim_base->Instance));
}
/**
@brief Initializes the TIM Output Compare MSP.
@param htim: TIM handle
@retval None
*/
void HAL_TIM_OC_MspInit(TIM_HandleTypeDef *htim)
{
timerObj_t *obj = get_timer_obj(htim);
enableTimerClock(htim);
// configure Update interrupt
HAL_NVIC_SetPriority(getTimerUpIrq(htim->Instance), obj->preemptPriority, obj->subPriority);
HAL_NVIC_EnableIRQ(getTimerUpIrq(htim->Instance));
if (getTimerCCIrq(htim->Instance) != getTimerUpIrq(htim->Instance))
{
// configure Capture Compare interrupt
HAL_NVIC_SetPriority(getTimerCCIrq(htim->Instance), obj->preemptPriority, obj->subPriority);
HAL_NVIC_EnableIRQ(getTimerCCIrq(htim->Instance));
}
}
/**
@brief DeInitialize TIM Output Compare MSP.
@param htim: TIM handle
@retval None
*/
void HAL_TIM_OC_MspDeInit(TIM_HandleTypeDef *htim)
{
disableTimerClock(htim);
HAL_NVIC_DisableIRQ(getTimerUpIrq(htim->Instance));
HAL_NVIC_DisableIRQ(getTimerCCIrq(htim->Instance));
}
/**
@brief Initializes the TIM Input Capture MSP.
@param htim: TIM handle
@retval None
*/
void HAL_TIM_IC_MspInit(TIM_HandleTypeDef *htim)
{
enableTimerClock(htim);
}
/**
@brief DeInitialize TIM Input Capture MSP.
@param htim: TIM handle
@retval None
*/
void HAL_TIM_IC_MspDeInit(TIM_HandleTypeDef *htim)
{
disableTimerClock(htim);
}
/* Exported functions */
/**
@brief Enable the timer clock
@param htim: TIM handle
@retval None
*/
void enableTimerClock(TIM_HandleTypeDef *htim)
{
// Enable TIM clock
#if defined(TIM1_BASE)
if (htim->Instance == TIM1)
{
__HAL_RCC_TIM1_CLK_ENABLE();
}
#endif
#if defined(TIM2_BASE)
if (htim->Instance == TIM2)
{
__HAL_RCC_TIM2_CLK_ENABLE();
}
#endif
#if defined(TIM3_BASE)
if (htim->Instance == TIM3)
{
__HAL_RCC_TIM3_CLK_ENABLE();
}
#endif
#if defined(TIM4_BASE)
if (htim->Instance == TIM4)
{
__HAL_RCC_TIM4_CLK_ENABLE();
}
#endif
#if defined(TIM5_BASE)
if (htim->Instance == TIM5)
{
__HAL_RCC_TIM5_CLK_ENABLE();
}
#endif
#if defined(TIM6_BASE)
if (htim->Instance == TIM6)
{
__HAL_RCC_TIM6_CLK_ENABLE();
}
#endif
#if defined(TIM7_BASE)
if (htim->Instance == TIM7)
{
__HAL_RCC_TIM7_CLK_ENABLE();
}
#endif
#if defined(TIM8_BASE)
if (htim->Instance == TIM8)
{
__HAL_RCC_TIM8_CLK_ENABLE();
}
#endif
#if defined(TIM9_BASE)
if (htim->Instance == TIM9)
{
__HAL_RCC_TIM9_CLK_ENABLE();
}
#endif
#if defined(TIM10_BASE)
if (htim->Instance == TIM10)
{
__HAL_RCC_TIM10_CLK_ENABLE();
}
#endif
#if defined(TIM11_BASE)
if (htim->Instance == TIM11)
{
__HAL_RCC_TIM11_CLK_ENABLE();
}
#endif
#if defined(TIM12_BASE)
if (htim->Instance == TIM12)
{
__HAL_RCC_TIM12_CLK_ENABLE();
}
#endif
#if defined(TIM13_BASE)
if (htim->Instance == TIM13)
{
__HAL_RCC_TIM13_CLK_ENABLE();
}
#endif
#if defined(TIM14_BASE)
if (htim->Instance == TIM14)
{
__HAL_RCC_TIM14_CLK_ENABLE();
}
#endif
#if defined(TIM15_BASE)
if (htim->Instance == TIM15)
{
__HAL_RCC_TIM15_CLK_ENABLE();
}
#endif
#if defined(TIM16_BASE)
if (htim->Instance == TIM16)
{
__HAL_RCC_TIM16_CLK_ENABLE();
}
#endif
#if defined(TIM17_BASE)
if (htim->Instance == TIM17)
{
__HAL_RCC_TIM17_CLK_ENABLE();
}
#endif
#if defined(TIM18_BASE)
if (htim->Instance == TIM18)
{
__HAL_RCC_TIM18_CLK_ENABLE();
}
#endif
#if defined(TIM19_BASE)
if (htim->Instance == TIM19)
{
__HAL_RCC_TIM19_CLK_ENABLE();
}
#endif
#if defined(TIM20_BASE)
if (htim->Instance == TIM20)
{
__HAL_RCC_TIM20_CLK_ENABLE();
}
#endif
#if defined(TIM21_BASE)
if (htim->Instance == TIM21)
{
__HAL_RCC_TIM21_CLK_ENABLE();
}
#endif
#if defined(TIM22_BASE)
if (htim->Instance == TIM22)
{
__HAL_RCC_TIM22_CLK_ENABLE();
}
#endif
}
/**
@brief Disable the timer clock
@param htim: TIM handle
@retval None
*/
void disableTimerClock(TIM_HandleTypeDef *htim)
{
// Enable TIM clock
#if defined(TIM1_BASE)
if (htim->Instance == TIM1)
{
__HAL_RCC_TIM1_CLK_DISABLE();
}
#endif
#if defined(TIM2_BASE)
if (htim->Instance == TIM2)
{
__HAL_RCC_TIM2_CLK_DISABLE();
}
#endif
#if defined(TIM3_BASE)
if (htim->Instance == TIM3)
{
__HAL_RCC_TIM3_CLK_DISABLE();
}
#endif
#if defined(TIM4_BASE)
if (htim->Instance == TIM4)
{
__HAL_RCC_TIM4_CLK_DISABLE();
}
#endif
#if defined(TIM5_BASE)
if (htim->Instance == TIM5)
{
__HAL_RCC_TIM5_CLK_DISABLE();
}
#endif
#if defined(TIM6_BASE)
if (htim->Instance == TIM6)
{
__HAL_RCC_TIM6_CLK_DISABLE();
}
#endif
#if defined(TIM7_BASE)
if (htim->Instance == TIM7)
{
__HAL_RCC_TIM7_CLK_DISABLE();
}
#endif
#if defined(TIM8_BASE)
if (htim->Instance == TIM8)
{
__HAL_RCC_TIM8_CLK_DISABLE();
}
#endif
#if defined(TIM9_BASE)
if (htim->Instance == TIM9)
{
__HAL_RCC_TIM9_CLK_DISABLE();
}
#endif
#if defined(TIM10_BASE)
if (htim->Instance == TIM10)
{
__HAL_RCC_TIM10_CLK_DISABLE();
}
#endif
#if defined(TIM11_BASE)
if (htim->Instance == TIM11)
{
__HAL_RCC_TIM11_CLK_DISABLE();
}
#endif
#if defined(TIM12_BASE)
if (htim->Instance == TIM12)
{
__HAL_RCC_TIM12_CLK_DISABLE();
}
#endif
#if defined(TIM13_BASE)
if (htim->Instance == TIM13)
{
__HAL_RCC_TIM13_CLK_DISABLE();
}
#endif
#if defined(TIM14_BASE)
if (htim->Instance == TIM14)
{
__HAL_RCC_TIM14_CLK_DISABLE();
}
#endif
#if defined(TIM15_BASE)
if (htim->Instance == TIM15)
{
__HAL_RCC_TIM15_CLK_DISABLE();
}
#endif
#if defined(TIM16_BASE)
if (htim->Instance == TIM16)
{
__HAL_RCC_TIM16_CLK_DISABLE();
}
#endif
#if defined(TIM17_BASE)
if (htim->Instance == TIM17)
{
__HAL_RCC_TIM17_CLK_DISABLE();
}
#endif
#if defined(TIM18_BASE)
if (htim->Instance == TIM18)
{
__HAL_RCC_TIM18_CLK_DISABLE();
}
#endif
#if defined(TIM19_BASE)
if (htim->Instance == TIM19)
{
__HAL_RCC_TIM19_CLK_DISABLE();
}
#endif
#if defined(TIM20_BASE)
if (htim->Instance == TIM20)
{
__HAL_RCC_TIM20_CLK_DISABLE();
}
#endif
#if defined(TIM21_BASE)
if (htim->Instance == TIM21)
{
__HAL_RCC_TIM21_CLK_DISABLE();
}
#endif
#if defined(TIM22_BASE)
if (htim->Instance == TIM22)
{
__HAL_RCC_TIM22_CLK_DISABLE();
}
#endif
}
/**
@brief This function return IRQ number corresponding to update interrupt event of timer instance.
@param tim: timer instance
@retval IRQ number
*/
IRQn_Type getTimerUpIrq(TIM_TypeDef *tim)
{
IRQn_Type IRQn = NonMaskableInt_IRQn;
if (tim != (TIM_TypeDef *)NC)
{
/* Get IRQn depending on TIM instance */
switch ((uint32_t)tim)
{
#if defined(TIM1_BASE)
case (uint32_t)TIM1_BASE:
IRQn = TIM1_IRQn;
break;
#endif
#if defined(TIM2_BASE)
case (uint32_t)TIM2_BASE:
IRQn = TIM2_IRQn;
break;
#endif
#if defined(TIM3_BASE)
case (uint32_t)TIM3_BASE:
IRQn = TIM3_IRQn;
break;
#endif
#if defined(TIM4_BASE)
case (uint32_t)TIM4_BASE:
IRQn = TIM4_IRQn;
break;
#endif
#if defined(TIM5_BASE)
case (uint32_t)TIM5_BASE:
IRQn = TIM5_IRQn;
break;
#endif
// KH
#if 0
#if defined(TIM6_BASE)
case (uint32_t)TIM6_BASE:
IRQn = TIM6_IRQn;
break;
#endif
#endif
//////
#if defined(TIM7_BASE)
case (uint32_t)TIM7_BASE:
IRQn = TIM7_IRQn;
break;
#endif
#if defined(TIM8_BASE)
case (uint32_t)TIM8_BASE:
IRQn = TIM8_IRQn;
break;
#endif
#if defined(TIM9_BASE)
case (uint32_t)TIM9_BASE:
IRQn = TIM9_IRQn;
break;
#endif
#if defined(TIM10_BASE)
case (uint32_t)TIM10_BASE:
IRQn = TIM10_IRQn;
break;
#endif
#if defined(TIM11_BASE)
case (uint32_t)TIM11_BASE:
IRQn = TIM11_IRQn;
break;
#endif
#if defined(TIM12_BASE)
case (uint32_t)TIM12_BASE:
IRQn = TIM12_IRQn;
break;
#endif
#if defined(TIM13_BASE)
case (uint32_t)TIM13_BASE:
IRQn = TIM13_IRQn;
break;
#endif
#if defined(TIM14_BASE)
case (uint32_t)TIM14_BASE:
IRQn = TIM14_IRQn;
break;
#endif
#if defined(TIM15_BASE)
case (uint32_t)TIM15_BASE:
IRQn = TIM15_IRQn;
break;
#endif
#if defined(TIM16_BASE)
case (uint32_t)TIM16_BASE:
IRQn = TIM16_IRQn;
break;
#endif
#if defined(TIM17_BASE)
case (uint32_t)TIM17_BASE:
IRQn = TIM17_IRQn;
break;
#endif
#if defined(TIM18_BASE)
case (uint32_t)TIM18_BASE:
IRQn = TIM18_IRQn;
break;
#endif
#if defined(TIM19_BASE)
case (uint32_t)TIM19_BASE:
IRQn = TIM19_IRQn;
break;
#endif
#if defined(TIM20_BASE)
case (uint32_t)TIM20_BASE:
IRQn = TIM20_IRQn;
break;
#endif
#if defined(TIM21_BASE)
case (uint32_t)TIM21_BASE:
IRQn = TIM21_IRQn;
break;
#endif
#if defined(TIM22_BASE)
case (uint32_t)TIM22_BASE:
IRQn = TIM22_IRQn;
break;
#endif
default:
//_Error_Handler("TIM: Unknown timer IRQn", (int)tim);
break;
}
}
return IRQn;
}
/**
@brief This function return IRQ number corresponding to Capture or Compare interrupt event of timer instance.
@param tim: timer instance
@retval IRQ number
*/
IRQn_Type getTimerCCIrq(TIM_TypeDef *tim)
{
IRQn_Type IRQn = NonMaskableInt_IRQn;
if (tim != (TIM_TypeDef *)NC)
{
/* Get IRQn depending on TIM instance */
switch ((uint32_t)tim)
{
#if defined(TIM1_BASE)
case (uint32_t)TIM1_BASE:
IRQn = TIM1_CC_IRQn;
break;
#endif
#if defined(TIM2_BASE)
case (uint32_t)TIM2_BASE:
IRQn = TIM2_IRQn;
break;
#endif
#if defined(TIM3_BASE)
case (uint32_t)TIM3_BASE:
IRQn = TIM3_IRQn;
break;
#endif
#if defined(TIM4_BASE)
case (uint32_t)TIM4_BASE:
IRQn = TIM4_IRQn;
break;
#endif
#if defined(TIM5_BASE)
case (uint32_t)TIM5_BASE:
IRQn = TIM5_IRQn;
break;
#endif
#if 0
// KH
#if defined(TIM6_BASE)
case (uint32_t)TIM6_BASE:
IRQn = TIM6_IRQn;
break;
#endif
#endif
//////
#if defined(TIM7_BASE)
case (uint32_t)TIM7_BASE:
IRQn = TIM7_IRQn;
break;
#endif
#if defined(TIM8_BASE)
case (uint32_t)TIM8_BASE:
IRQn = TIM8_CC_IRQn;
break;
#endif
#if defined(TIM9_BASE)
case (uint32_t)TIM9_BASE:
IRQn = TIM9_IRQn;
break;
#endif
#if defined(TIM10_BASE)
case (uint32_t)TIM10_BASE:
IRQn = TIM10_IRQn;
break;
#endif
#if defined(TIM11_BASE)
case (uint32_t)TIM11_BASE:
IRQn = TIM11_IRQn;
break;
#endif
#if defined(TIM12_BASE)
case (uint32_t)TIM12_BASE:
IRQn = TIM12_IRQn;
break;
#endif
#if defined(TIM13_BASE)
case (uint32_t)TIM13_BASE:
IRQn = TIM13_IRQn;
break;
#endif
#if defined(TIM14_BASE)
case (uint32_t)TIM14_BASE:
IRQn = TIM14_IRQn;
break;
#endif
#if defined(TIM15_BASE)
case (uint32_t)TIM15_BASE:
IRQn = TIM15_IRQn;
break;
#endif
#if defined(TIM16_BASE)
case (uint32_t)TIM16_BASE:
IRQn = TIM16_IRQn;
break;
#endif
#if defined(TIM17_BASE)
case (uint32_t)TIM17_BASE:
IRQn = TIM17_IRQn;
break;
#endif
#if defined(TIM18_BASE)
case (uint32_t)TIM18_BASE:
IRQn = TIM18_IRQn;
break;
#endif
#if defined(TIM19_BASE)
case (uint32_t)TIM19_BASE:
IRQn = TIM19_IRQn;
break;
#endif
#if defined(TIM20_BASE)
case (uint32_t)TIM20_BASE:
IRQn = TIM20_CC_IRQn;
break;
#endif
#if defined(TIM21_BASE)
case (uint32_t)TIM21_BASE:
IRQn = TIM21_IRQn;
break;
#endif
#if defined(TIM22_BASE)
case (uint32_t)TIM22_BASE:
IRQn = TIM22_IRQn;
break;
#endif
break;
default:
//_Error_Handler("TIM: Unknown timer IRQn", (int)tim);
break;
}
}
return IRQn;
}
/**
@brief This function return the timer clock source.
@param tim: timer instance
@retval 1 = PCLK1 or 2 = PCLK2
*/
uint8_t getTimerClkSrc(TIM_TypeDef *tim)
{
uint8_t clkSrc = 0;
if (tim != (TIM_TypeDef *)NC)
#if defined(STM32F0xx) || defined(STM32G0xx)
/* TIMx source CLK is PCKL1 */
clkSrc = 1;
#else
{
/* Get source clock depending on TIM instance */
switch ((uint32_t)tim)
{
#if defined(TIM2_BASE)
case (uint32_t)TIM2:
#endif
#if defined(TIM3_BASE)
case (uint32_t)TIM3:
#endif
#if defined(TIM4_BASE)
case (uint32_t)TIM4:
#endif
#if defined(TIM5_BASE)
case (uint32_t)TIM5:
#endif
#if defined(TIM6_BASE)
case (uint32_t)TIM6:
#endif
#if defined(TIM7_BASE)
case (uint32_t)TIM7:
#endif
#if defined(TIM12_BASE)
case (uint32_t)TIM12:
#endif
#if defined(TIM13_BASE)
case (uint32_t)TIM13:
#endif
#if defined(TIM14_BASE)
case (uint32_t)TIM14:
#endif
#if defined(TIM18_BASE)
case (uint32_t)TIM18:
#endif
clkSrc = 1;
break;
#if defined(TIM1_BASE)
case (uint32_t)TIM1:
#endif
#if defined(TIM8_BASE)
case (uint32_t)TIM8:
#endif
#if defined(TIM9_BASE)
case (uint32_t)TIM9:
#endif
#if defined(TIM10_BASE)
case (uint32_t)TIM10:
#endif
#if defined(TIM11_BASE)
case (uint32_t)TIM11:
#endif
#if defined(TIM15_BASE)
case (uint32_t)TIM15:
#endif
#if defined(TIM16_BASE)
case (uint32_t)TIM16:
#endif
#if defined(TIM17_BASE)
case (uint32_t)TIM17:
#endif
#if defined(TIM19_BASE)
case (uint32_t)TIM19:
#endif
#if defined(TIM20_BASE)
case (uint32_t)TIM20:
#endif
#if defined(TIM21_BASE)
case (uint32_t)TIM21:
#endif
#if defined(TIM22_BASE)
case (uint32_t)TIM22:
#endif
clkSrc = 2;
break;
default:
////_Error_Handler("TIM: Unknown timer instance", (int)tim);
break;
}
}
#endif
return clkSrc;
}
#endif /* HAL_TIM_MODULE_ENABLED && !HAL_TIM_MODULE_ONLY */
#ifdef __cplusplus
}
#endif
#endif
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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