61 lines
1.7 KiB
C
61 lines
1.7 KiB
C
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#pragma once
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#include "main.h"
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#include "stdbool.h"
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// this defined in xx_hal_gpio.c, so...
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#define GPIO_NUMBER (16U)
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typedef enum {
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GpioModeInput = GPIO_MODE_INPUT,
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GpioModeOutputPushPull = GPIO_MODE_OUTPUT_PP,
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GpioModeOutputOpenDrain = GPIO_MODE_OUTPUT_OD,
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GpioModeAltFunctionPushPull = GPIO_MODE_AF_PP,
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GpioModeAltFunctionOpenDrain = GPIO_MODE_AF_OD,
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GpioModeAnalog = GPIO_MODE_ANALOG,
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GpioModeInterruptRise = GPIO_MODE_IT_RISING,
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GpioModeInterruptFall = GPIO_MODE_IT_FALLING,
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GpioModeInterruptRiseFall = GPIO_MODE_IT_RISING_FALLING,
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GpioModeEventRise = GPIO_MODE_EVT_RISING,
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GpioModeEventFall = GPIO_MODE_EVT_FALLING,
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GpioModeEventRiseFall = GPIO_MODE_EVT_RISING_FALLING,
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} GpioMode;
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typedef enum {
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GpioSpeedLow = GPIO_SPEED_FREQ_LOW,
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GpioSpeedMedium = GPIO_SPEED_FREQ_MEDIUM,
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GpioSpeedHigh = GPIO_SPEED_FREQ_HIGH,
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GpioSpeedVeryHigh = GPIO_SPEED_FREQ_VERY_HIGH,
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} GpioSpeed;
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typedef enum {
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GpioPullNo = GPIO_NOPULL,
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GpioPullUp = GPIO_PULLUP,
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GpioPullDown = GPIO_PULLDOWN,
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} GpioPull;
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typedef struct {
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GPIO_TypeDef* port;
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uint16_t pin;
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} GpioPin;
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// init GPIO
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void hal_gpio_init(GpioPin* gpio, GpioMode mode, GpioPull pull, GpioSpeed speed);
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// write value to GPIO, false = LOW, true = HIGH
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static inline void hal_gpio_write(GpioPin* gpio, bool state) {
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// writing to BSSR is an atomic operation
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if(state == true) {
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gpio->port->BSRR = gpio->pin;
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} else {
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gpio->port->BSRR = (uint32_t)gpio->pin << GPIO_NUMBER;
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}
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}
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// read value from GPIO, false = LOW, true = HIGH
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static inline bool hal_gpio_read(GpioPin* gpio) {
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if((gpio->port->IDR & gpio->pin) != 0x00U) {
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return true;
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} else {
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return false;
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}
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}
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