114 lines
3.2 KiB
C++
114 lines
3.2 KiB
C++
//
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// Created by Luca on 9/7/2025.
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//
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#ifndef SHAL_UART_REG_F072XB_H
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#define SHAL_UART_REG_F072XB_H
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#include <stm32h753xx.h>
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#include <cassert>
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#include "SHAL_UART_TYPES.h"
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#define NUM_USART_LINES 4
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#define SHAL_UART1 UART(1)
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#define SHAL_UART2 UART(2)
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#define SHAL_UART3 UART(3)
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#define SHAL_UART4 UART(4)
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//Valid usart Tx and Rx pairings for STM32F072
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enum class UART_Pair_Key : uint8_t{
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//UART2
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Tx2A2_Rx2A3,
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Tx3D8_Rx3D9,
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NUM_PAIRS,
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INVALID
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};
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static SHAL_UART_Pair getUARTPair(const UART_Pair_Key pair){
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switch(pair){
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case UART_Pair_Key::Tx2A2_Rx2A3:
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return {USART2, GPIO_Key::A2, GPIO_Key::A3, GPIO_Alternate_Function::AF7, GPIO_Alternate_Function::AF7};
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case UART_Pair_Key::Tx3D8_Rx3D9:
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return {USART3, GPIO_Key::D8, GPIO_Key::D9, GPIO_Alternate_Function::AF7, GPIO_Alternate_Function::AF7};
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case UART_Pair_Key::NUM_PAIRS:
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case UART_Pair_Key::INVALID:
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assert(false);
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return {nullptr, GPIO_Key::INVALID, GPIO_Key::INVALID, GPIO_Alternate_Function::AF0, GPIO_Alternate_Function::AF0};
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default:
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__builtin_unreachable();
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}
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}
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constexpr SHAL_UART_Enable_Register getUARTEnableReg(const UART_Pair_Key pair){
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switch(pair){
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case UART_Pair_Key::Tx2A2_Rx2A3:
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return {&RCC->APB1LENR,RCC_APB1LENR_USART2EN};
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case UART_Pair_Key::Tx3D8_Rx3D9:
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return {&RCC->APB1LENR,RCC_APB1LENR_USART3EN};
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case UART_Pair_Key::NUM_PAIRS:
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case UART_Pair_Key::INVALID:
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assert(false);
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return {nullptr, 0};
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}
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__builtin_unreachable();
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}
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static SHAL_UART_Control_Register_1 getUARTControlRegister1(const UART_Pair_Key key) {
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SHAL_UART_Control_Register_1 res = {
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nullptr,
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USART_CR1_UE,
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USART_CR1_TE,
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USART_CR1_RE,
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USART_CR1_M0,
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USART_CR1_M1,
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USART_CR1_RXNEIE
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};
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res.reg = &getUARTPair(key).USARTReg->CR1;
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return res;
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};
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static SHAL_UART_Baud_Rate_Generation_Register getUARTBaudRateRegister(const UART_Pair_Key key) {
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SHAL_UART_Baud_Rate_Generation_Register res = {nullptr};
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res.reg = &getUARTPair(key).USARTReg->BRR;
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return res;
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}
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static SHAL_UART_ISR getUARTISR(const UART_Pair_Key key) { //TODO Support for multiple alternates for FIFO
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SHAL_UART_ISR res = {
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nullptr,
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USART_ISR_TXE_TXFNF,
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USART_ISR_TC,
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USART_ISR_BUSY
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};
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res.reg = &getUARTPair(key).USARTReg->ISR;
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return res;
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}
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static SHAL_UART_Transmit_Data_Register getUARTTransmitDataRegister(const UART_Pair_Key key) {
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return {&getUARTPair(key).USARTReg->TDR};
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}
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static
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constexpr uint32_t getAFMask(const GPIO_Alternate_Function mask){
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switch(mask){
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case GPIO_Alternate_Function::AF0: return 0x00;
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case GPIO_Alternate_Function::AF1: return 0x01;
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case GPIO_Alternate_Function::AF2: return 0x02;
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case GPIO_Alternate_Function::AF3: return 0x03;
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case GPIO_Alternate_Function::AF4: return 0x04;
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case GPIO_Alternate_Function::AF5: return 0x05;
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case GPIO_Alternate_Function::AF6: return 0x06;
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case GPIO_Alternate_Function::AF7: return 0x07;
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}
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__builtin_unreachable();
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}
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#endif //SHMINGO_HAL_SHAL_UART_REG_F072XB_H
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