sta-core/include/sta/stm32/gpio_pin.hpp
Henrik Stickann e4f5e3cd2e Update doc
2022-05-10 02:11:40 +02:00

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/**
* @file
* @brief Wrapper for STM32 GPIO pins.
*/
#ifndef STA_STM32_GPIO_PIN_HPP
#define STA_STM32_GPIO_PIN_HPP
/**
* @defgroup stm32GPIO GPIO
* @ingroup stm32
* @brief STM32 GPIO module.
*/
#ifdef DOXYGEN
/**
* @def STA_STM32_GPIO_ENABLE
* @brief Enable module.
*
* @ingroup stm32BuildConfig
*/
# define STA_STM32_GPIO_ENABLE
#endif // DOXYGEN
#include <sta/config.hpp>
#ifdef STA_STM32_GPIO_ENABLE
#include <sta/intf/gpio_pin.hpp>
#include <sta/stm32/hal.hpp>
namespace sta
{
/**
* @brief Container for STM GPIO Pin data.
*
* @ingroup stm32GPIO
*/
class STM32GpioPin : public GpioPin
{
public:
/**
* @param port GPIO port
* @param pin Pin index
*/
STM32GpioPin(GPIO_TypeDef * port, uint16_t pin);
void setState(GpioPinState state) override;
/**
* @brief Get GPIO port for pin.
*
* @return GPIO port
*/
GPIO_TypeDef * getPort() const;
/**
* @brief Get pin index for pin.
*
* @return Pin index
*/
uint16_t getPin() const;
/**
* @brief Get GPIO port index for pin.
*
* @return GPIO port index
*/
uint8_t getPortIndex() const;
private:
GPIO_TypeDef * port_; /**< GPIO port */
uint16_t pin_; /**< GPIO pin */
};
/**
* @brief Interrupt trigger edge.
*/
enum class InterruptEdge
{
RISING, /**< Rising edge */
FALLING, /**< Falling edge */
BOTH /**< Rising and falling edge */
};
/**
* @brief Check pin EXIT pin configuration.
*
* @param pin GPIO pin
* @param edge Interrupt trigger edge
* @return True if EXIT pin and trigger edge matches
*/
bool isInterruptEdge(const STM32GpioPin & pin, InterruptEdge edge);
} // namespace sta
/**
* @brief Create STM32GpioPin object from pin label.
*
* @param label Pin label
*
* @ingroup stm32GPIO
*/
#define STA_STM32_GPIO_PIN(label) sta::STM32GpioPin{label##_GPIO_Port, label##_Pin}
#endif // STA_STM32_GPIO_ENABLE
#endif // STA_STM32_GPIO_PIN_HPP