/******************** (C) COPYRIGHT 2007 STMicroelectronics ********************
* File Name          : stm32f10x_i2c.h
* Author             : MCD Application Team
* Version            : V1.0
* Date               : 10/08/2007
* Description        : This file contains all the functions prototypes for the
*                      I2C firmware library.
********************************************************************************
* THE PRESENT SOFTWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
* WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE TIME.
* AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY DIRECT,
* INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM THE
* CONTENT OF SUCH SOFTWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING
* INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
*******************************************************************************/

/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __STM32F10x_I2C_H
#define __STM32F10x_I2C_H

/* Includes ------------------------------------------------------------------*/
#include "stm32f10x_map.h"

/* Exported types ------------------------------------------------------------*/
/* I2C Init structure definition */
typedef struct
{
  u16 I2C_Mode;
  u16 I2C_DutyCycle;
  u16 I2C_OwnAddress1;
  u16 I2C_Ack;
  u16 I2C_AcknowledgedAddress;
  u32 I2C_ClockSpeed;
}I2C_InitTypeDef;

/* Exported constants --------------------------------------------------------*/
/* I2C modes */
#define I2C_Mode_I2C                    ((u16)0x0000)
#define I2C_Mode_SMBusDevice            ((u16)0x0002)
#define I2C_Mode_SMBusHost              ((u16)0x000A)

#define IS_I2C_MODE(MODE) ((MODE == I2C_Mode_I2C) || \
                           (MODE == I2C_Mode_SMBusDevice) || \
                           (MODE == I2C_Mode_SMBusHost))
/* I2C duty cycle in fast mode */
#define I2C_DutyCycle_16_9              ((u16)0x4000)
#define I2C_DutyCycle_2                 ((u16)0xBFFF)

#define IS_I2C_DUTY_CYCLE(CYCLE) ((CYCLE == I2C_DutyCycle_16_9) || \
                                  (CYCLE == I2C_DutyCycle_2))

/* I2C cknowledgementy */
#define I2C_Ack_Enable                  ((u16)0x0400)
#define I2C_Ack_Disable                 ((u16)0x0000)

#define IS_I2C_ACK_STATE(STATE) ((STATE == I2C_Ack_Enable) || \
                                 (STATE == I2C_Ack_Disable))

/* I2C transfer direction */
#define  I2C_Direction_Transmitter      ((u8)0x00)
#define  I2C_Direction_Receiver         ((u8)0x01)

#define IS_I2C_DIRECTION(DIRECTION) ((DIRECTION == I2C_Direction_Transmitter) || \
                                     (DIRECTION == I2C_Direction_Receiver))

/* I2C acknowledged address defines */
#define I2C_AcknowledgedAddress_7bit    ((u16)0x4000)
#define I2C_AcknowledgedAddress_10bit   ((u16)0xC000)

#define IS_I2C_ACKNOWLEDGE_ADDRESS(ADDRESS) ((ADDRESS == I2C_AcknowledgedAddress_7bit) || \
                                             (ADDRESS == I2C_AcknowledgedAddress_10bit))

/* I2C registers */
#define I2C_Register_CR1                ((u8)0x00)
#define I2C_Register_CR2                ((u8)0x04)
#define I2C_Register_OAR1               ((u8)0x08)
#define I2C_Register_OAR2               ((u8)0x0C)
#define I2C_Register_DR                 ((u8)0x10)
#define I2C_Register_SR1                ((u8)0x14)
#define I2C_Register_SR2                ((u8)0x18)
#define I2C_Register_CCR                ((u8)0x1C)
#define I2C_Register_TRISE              ((u8)0x20)

#define IS_I2C_REGISTER(REGISTER) ((REGISTER == I2C_Register_CR1) || \
                                   (REGISTER == I2C_Register_CR2) || \
                                   (REGISTER == I2C_Register_OAR1) || \
                                   (REGISTER == I2C_Register_OAR2) || \
                                   (REGISTER == I2C_Register_DR) || \
                                   (REGISTER == I2C_Register_SR1) || \
                                   (REGISTER == I2C_Register_SR2) || \
                                   (REGISTER == I2C_Register_CCR) || \
                                   (REGISTER == I2C_Register_TRISE))

/* I2C SMBus alert pin level */
#define I2C_SMBusAlert_Low              ((u16)0x2000)
#define I2C_SMBusAlert_High             ((u16)0xCFFF)

#define IS_I2C_SMBUS_ALERT(ALERT) ((ALERT == I2C_SMBusAlert_Low) || \
                                   (ALERT == I2C_SMBusAlert_High))

/* I2C PEC position */
#define I2C_PECPosition_Next            ((u16)0x0800)
#define I2C_PECPosition_Current         ((u16)0xF7FF)

#define IS_I2C_PEC_POSITION(POSITION) ((POSITION == I2C_PECPosition_Next) || \
                                       (POSITION == I2C_PECPosition_Current))

/* I2C interrupts definition */
#define I2C_IT_BUF                      ((u16)0x0400)
#define I2C_IT_EVT                      ((u16)0x0200)
#define I2C_IT_ERR                      ((u16)0x0100)

#define IS_I2C_CONFIG_IT(IT) (((IT & (u16)0xF8FF) == 0x00) && (IT != 0x00))

/* I2C interrupts definition */
#define I2C_IT_SMBALERT                 ((u32)0x10008000)
#define I2C_IT_TIMEOUT                  ((u32)0x10004000)
#define I2C_IT_PECERR                   ((u32)0x10001000)
#define I2C_IT_OVR                      ((u32)0x10000800)
#define I2C_IT_AF                       ((u32)0x10000400)
#define I2C_IT_ARLO                     ((u32)0x10000200)
#define I2C_IT_BERR                     ((u32)0x10000100)
#define I2C_IT_TXE                      ((u32)0x00000080)
#define I2C_IT_RXNE                     ((u32)0x00000040)
#define I2C_IT_STOPF                    ((u32)0x60000010)
#define I2C_IT_ADD10                    ((u32)0x20000008)
#define I2C_IT_BTF                      ((u32)0x60000004)
#define I2C_IT_ADDR                     ((u32)0xA0000002)
#define I2C_IT_SB                       ((u32)0x20000001)

#define IS_I2C_CLEAR_IT(IT) ((IT == I2C_IT_SMBALERT) || (IT == I2C_IT_TIMEOUT) || \
                             (IT == I2C_IT_PECERR) || (IT == I2C_IT_OVR) || \
                             (IT == I2C_IT_AF) || (IT == I2C_IT_ARLO) || \
                             (IT == I2C_IT_BERR) || (IT == I2C_IT_STOPF) || \
                             (IT == I2C_IT_ADD10) || (IT == I2C_IT_BTF) || \
                             (IT == I2C_IT_ADDR) || (IT == I2C_IT_SB))

#define IS_I2C_GET_IT(IT) ((IT == I2C_IT_SMBALERT) || (IT == I2C_IT_TIMEOUT) || \
                           (IT == I2C_IT_PECERR) || (IT == I2C_IT_OVR) || \
                           (IT == I2C_IT_AF) || (IT == I2C_IT_ARLO) || \
                           (IT == I2C_IT_BERR) || (IT == I2C_IT_TXE) || \
                           (IT == I2C_IT_RXNE) || (IT == I2C_IT_STOPF) || \
                           (IT == I2C_IT_ADD10) || (IT == I2C_IT_BTF) || \
                           (IT == I2C_IT_ADDR) || (IT == I2C_IT_SB))