esp-idf/components/esp_rom/include/esp32h2/rom/gpio.h

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4.9 KiB
C

/*
* SPDX-FileCopyrightText: 2022-2023 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
#pragma once
#include <stdint.h>
#include <stdbool.h>
#include "soc/gpio_reg.h"
#ifdef __cplusplus
extern "C" {
#endif
/** \defgroup gpio_apis, uart configuration and communication related apis
* @brief gpio apis
*/
/** @addtogroup gpio_apis
* @{
*/
#define GPIO_REG_READ(reg) READ_PERI_REG(reg)
#define GPIO_REG_WRITE(reg, val) WRITE_PERI_REG(reg, val)
#define GPIO_ID_PIN0 0
#define GPIO_ID_PIN(n) (GPIO_ID_PIN0+(n))
#define GPIO_PIN_ADDR(i) (GPIO_PIN0_REG + i*4)
#define GPIO_FUNC_IN_HIGH 0x38
#define GPIO_FUNC_IN_LOW 0x3C
#define GPIO_ID_IS_PIN_REGISTER(reg_id) \
((reg_id >= GPIO_ID_PIN0) && (reg_id <= GPIO_ID_PIN(GPIO_PIN_COUNT-1)))
#define GPIO_REGID_TO_PINIDX(reg_id) ((reg_id) - GPIO_ID_PIN0)
typedef enum {
GPIO_PIN_INTR_DISABLE = 0,
GPIO_PIN_INTR_POSEDGE = 1,
GPIO_PIN_INTR_NEGEDGE = 2,
GPIO_PIN_INTR_ANYEDGE = 3,
GPIO_PIN_INTR_LOLEVEL = 4,
GPIO_PIN_INTR_HILEVEL = 5
} GPIO_INT_TYPE;
/**
* @brief Change GPIO(0-27) pin output by setting, clearing, or disabling pins, GPIO0<->BIT(0).
* There is no particular ordering guaranteed; so if the order of writes is significant,
* calling code should divide a single call into multiple calls.
*
* @param uint32_t set_mask : the gpios that need high level.
*
* @param uint32_t clear_mask : the gpios that need low level.
*
* @param uint32_t enable_mask : the gpios that need be changed.
*
* @param uint32_t disable_mask : the gpios that need diable output.
*
* @return None
*/
void gpio_output_set(uint32_t set_mask, uint32_t clear_mask, uint32_t enable_mask, uint32_t disable_mask);
/**
* @brief Sample the value of GPIO input pins(0-27) and returns a bitmask.
*
* @param None
*
* @return uint32_t : bitmask for GPIO input pins, BIT(0) for GPIO0.
*/
uint32_t gpio_input_get(void);
/**
* @brief Set GPIO to wakeup the ESP32.
* Please do not call this function in SDK.
*
* @param uint32_t i: gpio number.
*
* @param GPIO_INT_TYPE intr_state : only GPIO_PIN_INTR_LOLEVEL\GPIO_PIN_INTR_HILEVEL can be used
*
* @return None
*/
void gpio_pin_wakeup_enable(uint32_t i, GPIO_INT_TYPE intr_state);
/**
* @brief disable GPIOs to wakeup the ESP32.
* Please do not call this function in SDK.
*
* @param None
*
* @return None
*/
void gpio_pin_wakeup_disable(void);
/**
* @brief set gpio input to a signal, one gpio can input to several signals.
*
* @param uint32_t gpio : gpio number, 0~27
* gpio == 0x3C, input 0 to signal
* gpio == 0x3A, input nothing to signal
* gpio == 0x38, input 1 to signal
*
* @param uint32_t signal_idx : signal index.
*
* @param bool inv : the signal is inv or not
*
* @return None
*/
void gpio_matrix_in(uint32_t gpio, uint32_t signal_idx, bool inv);
/**
* @brief set signal output to gpio, one signal can output to several gpios.
*
* @param uint32_t gpio : gpio number, 0~27
*
* @param uint32_t signal_idx : signal index.
* signal_idx == 0x80, cancel output put to the gpio
*
* @param bool out_inv : the signal output is invert or not
*
* @param bool oen_inv : the signal output enable is invert or not
*
* @return None
*/
void gpio_matrix_out(uint32_t gpio, uint32_t signal_idx, bool out_inv, bool oen_inv);
/**
* @brief Select pad as a gpio function from IOMUX.
*
* @param uint32_t gpio_num : gpio number, 0~27
*
* @return None
*/
void gpio_pad_select_gpio(uint32_t gpio_num);
/**
* @brief Set pad driver capability.
*
* @param uint32_t gpio_num : gpio number, 0~27
*
* @param uint32_t drv : 0-3
*
* @return None
*/
void gpio_pad_set_drv(uint32_t gpio_num, uint32_t drv);
/**
* @brief Pull up the pad from gpio number.
*
* @param uint32_t gpio_num : gpio number, 0~27
*
* @return None
*/
void gpio_pad_pullup(uint32_t gpio_num);
/**
* @brief Pull down the pad from gpio number.
*
* @param uint32_t gpio_num : gpio number, 0~27
*
* @return None
*/
void gpio_pad_pulldown(uint32_t gpio_num);
/**
* @brief Unhold the pad from gpio number.
*
* @param uint32_t gpio_num : gpio number, 0~27
*
* @return None
*/
void gpio_pad_unhold(uint32_t gpio_num);
/**
* @brief Hold the pad from gpio number.
*
* @param uint32_t gpio_num : gpio number, 0~27
*
* @return None
*/
void gpio_pad_hold(uint32_t gpio_num);
/**
* @brief enable gpio pad input.
*
* @param uint32_t gpio_num : gpio number, 0~27
*
* @return None
*/
void gpio_pad_input_enable(uint32_t gpio_num);
/**
* @brief disable gpio pad input.
*
* @param uint32_t gpio_num : gpio number, 0~27
*
* @return None
*/
void gpio_pad_input_disable(uint32_t gpio_num);
/**
* @}
*/
#ifdef __cplusplus
}
#endif