i2cd.h

 
/*
 * MIT License
 *
 * Copyright (c) 2026 Joey Castillo
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */
 
#pragma once
 
#include <stdint.h>
#include <stdbool.h>
#include <stddef.h>
 
typedef void (*i2c_device_address_cb_t)(uint8_t sercom, bool direction);
 
typedef void (*i2c_device_data_received_cb_t)(uint8_t sercom, uint8_t data);
 
typedef uint8_t (*i2c_device_data_requested_cb_t)(uint8_t sercom);
 
typedef void (*i2c_device_stop_cb_t)(uint8_t sercom);
 
typedef void (*i2c_device_error_cb_t)(uint8_t sercom);
 
#if defined(I2C_SERCOM)
 
void i2c_device_init(uint8_t address);
 
void i2c_device_enable(void);
 
bool i2c_device_is_enabled(void);
 
void i2c_device_set_callbacks(
    i2c_device_address_cb_t on_address_match,
    i2c_device_data_received_cb_t on_data_received,
    i2c_device_data_requested_cb_t on_data_requested,
    i2c_device_stop_cb_t on_stop,
    i2c_device_error_cb_t on_error);
 
void i2c_device_disable(void);
 
#endif
 
void i2c_device_init_instance(uint8_t sercom, uint8_t address);
 
void i2c_device_enable_instance(uint8_t sercom);
 
bool i2c_device_is_enabled_instance(uint8_t sercom);
 
void i2c_device_set_callbacks_instance(
    uint8_t sercom,
    i2c_device_address_cb_t on_address_match,
    i2c_device_data_received_cb_t on_data_received,
    i2c_device_data_requested_cb_t on_data_requested,
    i2c_device_stop_cb_t on_stop,
    i2c_device_error_cb_t on_error);
 
void i2c_device_disable_instance(uint8_t sercom);
 
void i2c_device_irq_handler(uint8_t sercom);