/* mbed Microcontroller Library
* SPDX-License-Identifier: BSD-3-Clause
******************************************************************************
*
* Copyright (c) 2021 STMicroelectronics.
* All rights reserved.
*
* This software component is licensed by ST under BSD 3-Clause license,
* the "License"; You may not use this file except in compliance with the
* License. You may obtain a copy of the License at:
* opensource.org/licenses/BSD-3-Clause
*
******************************************************************************
*/
#ifndef MBED_I2C_DEVICE_H
#define MBED_I2C_DEVICE_H
#include "PeripheralNames.h"
#ifdef __cplusplus
extern "C" {
#endif
/* Define I2C Device */
#if DEVICE_I2C
/* Define IP version */
#define I2C_IP_VERSION_V2
// Common settings: I2C clock = 48 MHz, Analog filter = ON, Digital filter coefficient = 0
#define TIMING_VAL_48M_CLK_100KHZ 0x20E03F53 // Standard mode with Rise Time = 640ns and Fall Time = 20ns
#define TIMING_VAL_48M_CLK_400KHZ 0x20500817 // Fast mode with Rise Time = 250ns and Fall Time = 100ns
#define TIMING_VAL_48M_CLK_1MHZ 0x00500A18 // Fast mode Plus with Rise Time = 60ns and Fall Time = 100ns
#define I2C_PCLK_48M 48000000 // 48 MHz
#define I2C_IT_ALL (I2C_IT_ERRI|I2C_IT_TCI|I2C_IT_STOPI|I2C_IT_NACKI|I2C_IT_ADDRI|I2C_IT_RXI|I2C_IT_TXI)
/* Family specific settings for clock source */
#define I2CAPI_I2C1_CLKSRC RCC_I2C1CLKSOURCE_SYSCLK
#define I2CAPI_I2C2_CLKSRC RCC_I2C2CLKSOURCE_SYSCLK
#define I2CAPI_I2C3_CLKSRC RCC_I2C3CLKSOURCE_SYSCLK
uint32_t i2c_get_pclk(I2CName i2c);
uint32_t i2c_get_timing(I2CName i2c, uint32_t current_timing, int current_hz, int hz);
#if MBED_CONF_TARGET_I2C_TIMING_VALUE_ALGO
uint32_t i2c_compute_timing(uint32_t clock_src_freq, uint32_t i2c_freq);
void i2c_compute_presc_scldel_sdadel(uint32_t clock_src_freq, uint32_t I2C_speed);
uint32_t i2c_compute_scll_sclh(uint32_t clock_src_freq, uint32_t I2C_speed);
#endif // MBED_CONF_TARGET_I2C_TIMING_VALUE_ALGO
#endif // DEVICE_I2C
#ifdef __cplusplus
}
#endif
#endif
