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182 lines
4.4 KiB
182 lines
4.4 KiB
#ifndef __STM_PIN_HPP__
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#define __STM_PIN_HPP__
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#include "../../interfaces/pin.hpp"
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#include "../Drivers/CMSIS/Device/ST/STM32F0xx/Include/stm32f042x6.h"
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#include <array>
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#include <stdint.h>
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// https://accu.org/journals/overload/13/68/goodliffe_281/
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enum GPIO_Port {
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Port_A_base_address = GPIOA_BASE,
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Port_B_base_address = GPIOB_BASE
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};
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enum Pin_no{
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pin_0,
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pin_1,
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pin_2,
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pin_3,
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pin_4,
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pin_5,
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pin_6,
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pin_7
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};
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template <Pin_no pin_no, GPIO_Port port_base_address>
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class STM_Pin : Pin
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{
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public:
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STM_Pin() {
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static_assert(pin_no < 7, "GPIO has only 8 ports!");
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}
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void setMode(mode mode) override
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{
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reinterpret_cast<GPIO_TypeDef*>(port_base_address)->MODER &= ~(0x3UL << (pin_no * 2));
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switch (mode)
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{
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case undefined:
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return;
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break;
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case input:
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return;
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case output:
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reinterpret_cast<GPIO_TypeDef*>(port_base_address)->MODER |= 0x1UL << (pin_no * 2);
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return;
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case analog:
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reinterpret_cast<GPIO_TypeDef*>(port_base_address)->MODER |= 0x3UL << (pin_no * 2);
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return;
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case alternate:
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reinterpret_cast<GPIO_TypeDef*>(port_base_address)->MODER |= 0x2UL << (pin_no * 2);
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return;
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default:
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break;
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};
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}
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void setOutputState(state state) override
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{
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// TODO: test it!
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switch (state)
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{
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case openDrain:
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reinterpret_cast<GPIO_TypeDef*>(port_base_address)->OTYPER |= (1UL << pin_no);
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return;
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break;
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case pushPull:
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reinterpret_cast<GPIO_TypeDef*>(port_base_address)->OTYPER &= ~(1UL << pin_no);
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return;
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break;
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case floating:
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break;
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default:
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break;
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};
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}
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void setPullUpDonw(pullUpDown resistance) override
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{
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}
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void setSpeed(speed speed) override
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{
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/*
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slow,
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normal,
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fast,
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veryFast
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*/
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reinterpret_cast<GPIO_TypeDef*>(port_base_address)->OSPEEDR &= ~(GPIO_OSPEEDR_OSPEEDR0_Msk << (2 * pin_no));
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switch(speed) {
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case slow:
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return;
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case normal:
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return;
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case fast:
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reinterpret_cast<GPIO_TypeDef*>(port_base_address)->OSPEEDR |= (0x01UL << (2 * pin_no));
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return;
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case veryFast:
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reinterpret_cast<GPIO_TypeDef*>(port_base_address)->OSPEEDR |= (0x3UL << (2 * pin_no));
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return;
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default:
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break;
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};
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}
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void config(mode mode, state state, pullUpDown resistance, speed speed) override
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{
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}
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bool read() override
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{
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}
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bool toggle() override
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{
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}
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void write(bool state) override
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{
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if(state) {
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reinterpret_cast<GPIO_TypeDef*>(port_base_address)->BSRR |= (GPIO_BSRR_BS_0 << pin_no);
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return;
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}
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reinterpret_cast<GPIO_TypeDef*>(port_base_address)->BSRR |= (GPIO_BSRR_BR_0 << pin_no);
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}
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void init() override
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{
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// TODO: find better way
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switch (port_base_address)
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{
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case GPIOA_BASE:
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RCC->AHBENR |= RCC_AHBENR_GPIOAEN;
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return;
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break;
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case GPIOB_BASE:
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RCC->AHBENR |= RCC_AHBENR_GPIOBEN;
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return;
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break;
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case GPIOC_BASE:
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RCC->AHBENR |= RCC_AHBENR_GPIOCEN;
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return;
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break;
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case GPIOF_BASE:
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RCC->AHBENR |= RCC_AHBENR_GPIOFEN;
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return;
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break;
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default:
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break;
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};
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}
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void deInit() override
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{
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}
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void hardwareInfo() override
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{
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}
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private:
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void throwError(uint16_t line, errors errNo) override
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{
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}
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};
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#endif //__STM_PIN_HPP__
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