/*
 * bmp180_stm32_hw.h
 *
 *  Created on: 3 окт. 2016 г.
 *      Author: l-pro
 */

#ifndef BMP180_STM32_HW_H_
#define BMP180_STM32_HW_H_

#include "stm32f4xx_hal.h"

extern I2C_HandleTypeDef hi2c3;

struct Bmp180Stm32Interface {
	static void delayUs(uint32_t us){
		HAL_Delay((us + 999) / 1000);
	}

	static uint8_t read8(uint8_t deviceAddress, uint8_t address) {
		uint8_t result = 0;
		HAL_I2C_Master_Transmit(&hi2c3, deviceAddress, &address, 1, HAL_MAX_DELAY);
		HAL_I2C_Master_Receive(&hi2c3, deviceAddress, &result, 1, HAL_MAX_DELAY);
		return result;
	}

	static void read16(uint8_t deviceAddress, uint8_t address, uint16_t* data) {
		HAL_I2C_Master_Transmit(&hi2c3, deviceAddress, &address, 1, HAL_MAX_DELAY);
		HAL_I2C_Master_Receive(&hi2c3, deviceAddress, reinterpret_cast<uint8_t*>(data), 2, HAL_MAX_DELAY);

		//swap bytes
		*data = (((*data) & 0xff) << 8) | (((*data) & 0xff00) >> 8);
	}

	static void write8(uint8_t deviceAddress, uint8_t address, uint8_t data){
		uint8_t bytes[] = {address, data};
		HAL_I2C_Master_Transmit(&hi2c3, deviceAddress, &bytes[0], 2, HAL_MAX_DELAY);
	}

};

#endif /* BMP180_STM32_HW_H_ */