/*
 * This file is part of the MLX90640 project.
 * Copyright 2022 Edward V. Emelianov <edward.emelianoff@gmail.com>.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
#pragma once
#ifndef I2C_H__

#include <stm32f1.h>

typedef enum{
	I2C_OK = 0,
	I2C_LINEBUSY,
	I2C_TMOUT,
	I2C_NOADDR,
	I2C_NACK,
	I2C_HWPROBLEM,
} i2c_status;

typedef enum{
    I2C_DMA_NOTINIT,
    I2C_DMA_RELAX,
    I2C_DMA_BUSY,
    I2C_DMA_READY
} i2c_dma_status;

extern volatile i2c_dma_status i2cDMAr;

void i2c_setup(uint8_t withDMA);
void i2c_set_addr7(uint8_t addr);
i2c_status i2c_7bit_send(const uint8_t *data, int datalen, uint8_t stop);
i2c_status i2c_7bit_receive_onebyte(uint8_t *data, uint8_t stop);
i2c_status i2c_7bit_receive_twobytes(uint8_t *data);
i2c_status i2c_7bit_receive(uint8_t *data, uint16_t nbytes);
i2c_status i2c_7bit_receive_DMA(uint8_t *data, uint16_t nbytes);

#define I2C_H__
#endif // I2C_H__