76 lines
2.4 KiB
C++
76 lines
2.4 KiB
C++
#ifndef SHAL_TIM_REG_H
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#define SHAL_TIM_REG_H
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#include <cassert>
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#include <stm32f072xb.h>
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enum class Timer_Key { //For STM32F072
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S_TIM1,
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S_TIM2,
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S_TIM3,
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S_TIM14,
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S_TIM15,
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S_TIM16,
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S_TIM17,
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NUM_TIMERS,
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S_TIM_INVALID
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};
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//Get timer peripheral struct including bus register, enable mask, timer mask
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constexpr RCC_Peripheral getTimerRCC(Timer_Key t) {
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switch(t) {
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case Timer_Key::S_TIM1: return {&RCC->APB2ENR, RCC_APB2ENR_TIM1EN};
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case Timer_Key::S_TIM2: return {&RCC->APB1ENR, RCC_APB1ENR_TIM2EN};
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case Timer_Key::S_TIM3: return {&RCC->APB1ENR, RCC_APB1ENR_TIM3EN};
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case Timer_Key::S_TIM14: return {&RCC->APB1ENR, RCC_APB1ENR_TIM14EN};
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case Timer_Key::S_TIM15: return {&RCC->APB2ENR, RCC_APB2ENR_TIM15EN};
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case Timer_Key::S_TIM16: return {&RCC->APB2ENR, RCC_APB2ENR_TIM16EN};
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case Timer_Key::S_TIM17: return {&RCC->APB2ENR, RCC_APB2ENR_TIM17EN};
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case Timer_Key::NUM_TIMERS:
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case Timer_Key::S_TIM_INVALID:
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assert(false);
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return {nullptr, 0};; //Unreachable
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}
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__builtin_unreachable();
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}
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//Get actual register value based on enum
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constexpr volatile TIM_TypeDef* getTimerRegister(Timer_Key t) {
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switch(t) {
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case Timer_Key::S_TIM1: return TIM1;
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case Timer_Key::S_TIM2: return TIM2;
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case Timer_Key::S_TIM3: return TIM3;
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case Timer_Key::S_TIM14: return TIM14;
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case Timer_Key::S_TIM15: return TIM15;
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case Timer_Key::S_TIM16: return TIM16;
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case Timer_Key::S_TIM17: return TIM17;
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case Timer_Key::NUM_TIMERS:
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case Timer_Key::S_TIM_INVALID:
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assert(false);
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return nullptr; //Unreachable
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}
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__builtin_unreachable();
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}
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constexpr IRQn_Type getIRQn(Timer_Key t) {
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switch(t) {
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case Timer_Key::S_TIM1: return TIM1_BRK_UP_TRG_COM_IRQn;
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case Timer_Key::S_TIM2: return TIM2_IRQn;
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case Timer_Key::S_TIM3: return TIM3_IRQn;
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case Timer_Key::S_TIM14: return TIM14_IRQn;
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case Timer_Key::S_TIM15: return TIM15_IRQn;
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case Timer_Key::S_TIM16: return TIM16_IRQn;
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case Timer_Key::S_TIM17: return TIM17_IRQn;
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case Timer_Key::NUM_TIMERS:
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case Timer_Key::S_TIM_INVALID:
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assert(false);
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return TIM1_BRK_UP_TRG_COM_IRQn; //Unreachable
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}
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__builtin_unreachable();
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}
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#endif |