102 lines
2.7 KiB
C++
102 lines
2.7 KiB
C++
/*
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* Copyright (C) 2019 Max Regan
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#pragma once
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#include "Bsp/ReturnCode.h"
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#include "Bsp/TaskScheduler.h"
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#include "Mcu.h"
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namespace BSP {
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class GpioDriver {
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public:
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GpioDriver(GPIO_TypeDef *gpio);
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void init();
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void enable();
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void disable();
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enum class output_mode_t {
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PUSH_PULL,
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OPEN_DRAIN,
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};
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enum class output_speed_t {
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LOW,
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MEDIUM,
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HIGH,
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VERY_HIGH,
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};
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enum class input_pull_t {
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FLOATING,
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PULL_UP,
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PULL_DOWN,
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};
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friend class GpioPin;
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private:
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enum class moder_t {
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INPUT,
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OUTPUT,
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ALTERNATE_FUNCTION,
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};
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void set_pin_moder(uint32_t index, moder_t mode);
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void set_pin_pupdr(uint32_t index, input_pull_t pull_mode);
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void set_pin_otyper(uint32_t index, output_mode_t mode);
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void set_pin_ospeedr(uint32_t index, output_speed_t speed);
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void configure_pin_input(uint32_t index, input_pull_t pull_mode);
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void configure_pin_output(uint32_t index, output_mode_t mode, output_speed_t speed);
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void configure_pin_alternate_function(uint32_t index, uint32_t function);
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void write_pin(uint32_t index, bool value);
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bool read_pin(uint32_t index);
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GPIO_TypeDef * const m_gpio;
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};
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class GpioPin {
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public:
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GpioPin(GpioDriver &m_driver, uint32_t index);
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void configure_input(GpioDriver::input_pull_t pull_mode);
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void configure_output(GpioDriver::output_mode_t mode, GpioDriver::output_speed_t speed);
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void configure_alternate_function(uint32_t function);
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void write(bool value);
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bool read();
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GpioDriver &get_driver();
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uint32_t get_index();
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private:
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GpioDriver &m_gpio;
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uint32_t const m_index;
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};
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}
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