/opt/STM32F10x_StdPeriph_Lib_V3.5.0/Libraries/STM32F10x_StdPeriph_Driver/inc/stm32f10x_i2c.h

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

#ifdef __cplusplus
 extern "C" {
#endif

/* Includes ------------------------------------------------------------------*/
#include "stm32f10x.h"

typedef struct
{
  uint32_t I2C_ClockSpeed;          
  uint16_t I2C_Mode;                
  uint16_t I2C_DutyCycle;           
  uint16_t I2C_OwnAddress1;         
  uint16_t I2C_Ack;                 
  uint16_t I2C_AcknowledgedAddress; 
}I2C_InitTypeDef;

#define IS_I2C_ALL_PERIPH(PERIPH) (((PERIPH) == I2C1) || \
                                   ((PERIPH) == I2C2))

#define I2C_Mode_I2C                    ((uint16_t)0x0000)
#define I2C_Mode_SMBusDevice            ((uint16_t)0x0002)  
#define I2C_Mode_SMBusHost              ((uint16_t)0x000A)
#define IS_I2C_MODE(MODE) (((MODE) == I2C_Mode_I2C) || \
                           ((MODE) == I2C_Mode_SMBusDevice) || \
                           ((MODE) == I2C_Mode_SMBusHost))

#define I2C_DutyCycle_16_9              ((uint16_t)0x4000) 
#define I2C_DutyCycle_2                 ((uint16_t)0xBFFF) 
#define IS_I2C_DUTY_CYCLE(CYCLE) (((CYCLE) == I2C_DutyCycle_16_9) || \
                                  ((CYCLE) == I2C_DutyCycle_2))

#define I2C_Ack_Enable                  ((uint16_t)0x0400)
#define I2C_Ack_Disable                 ((uint16_t)0x0000)
#define IS_I2C_ACK_STATE(STATE) (((STATE) == I2C_Ack_Enable) || \
                                 ((STATE) == I2C_Ack_Disable))

#define  I2C_Direction_Transmitter      ((uint8_t)0x00)
#define  I2C_Direction_Receiver         ((uint8_t)0x01)
#define IS_I2C_DIRECTION(DIRECTION) (((DIRECTION) == I2C_Direction_Transmitter) || \
                                     ((DIRECTION) == I2C_Direction_Receiver))

#define I2C_AcknowledgedAddress_7bit    ((uint16_t)0x4000)
#define I2C_AcknowledgedAddress_10bit   ((uint16_t)0xC000)
#define IS_I2C_ACKNOWLEDGE_ADDRESS(ADDRESS) (((ADDRESS) == I2C_AcknowledgedAddress_7bit) || \
                                             ((ADDRESS) == I2C_AcknowledgedAddress_10bit))

#define I2C_Register_CR1                ((uint8_t)0x00)
#define I2C_Register_CR2                ((uint8_t)0x04)
#define I2C_Register_OAR1               ((uint8_t)0x08)
#define I2C_Register_OAR2               ((uint8_t)0x0C)
#define I2C_Register_DR                 ((uint8_t)0x10)
#define I2C_Register_SR1                ((uint8_t)0x14)
#define I2C_Register_SR2                ((uint8_t)0x18)
#define I2C_Register_CCR                ((uint8_t)0x1C)
#define I2C_Register_TRISE              ((uint8_t)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))

#define I2C_SMBusAlert_Low              ((uint16_t)0x2000)
#define I2C_SMBusAlert_High             ((uint16_t)0xDFFF)
#define IS_I2C_SMBUS_ALERT(ALERT) (((ALERT) == I2C_SMBusAlert_Low) || \
                                   ((ALERT) == I2C_SMBusAlert_High))

#define I2C_PECPosition_Next            ((uint16_t)0x0800)
#define I2C_PECPosition_Current         ((uint16_t)0xF7FF)
#define IS_I2C_PEC_POSITION(POSITION) (((POSITION) == I2C_PECPosition_Next) || \
                                       ((POSITION) == I2C_PECPosition_Current))

#define I2C_NACKPosition_Next           ((uint16_t)0x0800)
#define I2C_NACKPosition_Current        ((uint16_t)0xF7FF)
#define IS_I2C_NACK_POSITION(POSITION)  (((POSITION) == I2C_NACKPosition_Next) || \
                                         ((POSITION) == I2C_NACKPosition_Current))

#define I2C_IT_BUF                      ((uint16_t)0x0400)
#define I2C_IT_EVT                      ((uint16_t)0x0200)
#define I2C_IT_ERR                      ((uint16_t)0x0100)
#define IS_I2C_CONFIG_IT(IT) ((((IT) & (uint16_t)0xF8FF) == 0x00) && ((IT) != 0x00))

#define I2C_IT_SMBALERT                 ((uint32_t)0x01008000)
#define I2C_IT_TIMEOUT                  ((uint32_t)0x01004000)
#define I2C_IT_PECERR                   ((uint32_t)0x01001000)
#define I2C_IT_OVR                      ((uint32_t)0x01000800)
#define I2C_IT_AF                       ((uint32_t)0x01000400)
#define I2C_IT_ARLO                     ((uint32_t)0x01000200)
#define I2C_IT_BERR                     ((uint32_t)0x01000100)
#define I2C_IT_TXE                      ((uint32_t)0x06000080)
#define I2C_IT_RXNE                     ((uint32_t)0x06000040)
#define I2C_IT_STOPF                    ((uint32_t)0x02000010)
#define I2C_IT_ADD10                    ((uint32_t)0x02000008)
#define I2C_IT_BTF                      ((uint32_t)0x02000004)
#define I2C_IT_ADDR                     ((uint32_t)0x02000002)
#define I2C_IT_SB                       ((uint32_t)0x02000001)

#define IS_I2C_CLEAR_IT(IT) ((((IT) & (uint16_t)0x20FF) == 0x00) && ((IT) != (uint16_t)0x00))

#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))

#define I2C_FLAG_DUALF                  ((uint32_t)0x00800000)
#define I2C_FLAG_SMBHOST                ((uint32_t)0x00400000)
#define I2C_FLAG_SMBDEFAULT             ((uint32_t)0x00200000)
#define I2C_FLAG_GENCALL                ((uint32_t)0x00100000)
#define I2C_FLAG_TRA                    ((uint32_t)0x00040000)
#define I2C_FLAG_BUSY                   ((uint32_t)0x00020000)
#define I2C_FLAG_MSL                    ((uint32_t)0x00010000)

#define I2C_FLAG_SMBALERT               ((uint32_t)0x10008000)
#define I2C_FLAG_TIMEOUT                ((uint32_t)0x10004000)
#define I2C_FLAG_PECERR                 ((uint32_t)0x10001000)
#define I2C_FLAG_OVR                    ((uint32_t)0x10000800)
#define I2C_FLAG_AF                     ((uint32_t)0x10000400)
#define I2C_FLAG_ARLO                   ((uint32_t)0x10000200)
#define I2C_FLAG_BERR                   ((uint32_t)0x10000100)
#define I2C_FLAG_TXE                    ((uint32_t)0x10000080)
#define I2C_FLAG_RXNE                   ((uint32_t)0x10000040)
#define I2C_FLAG_STOPF                  ((uint32_t)0x10000010)
#define I2C_FLAG_ADD10                  ((uint32_t)0x10000008)
#define I2C_FLAG_BTF                    ((uint32_t)0x10000004)
#define I2C_FLAG_ADDR                   ((uint32_t)0x10000002)
#define I2C_FLAG_SB                     ((uint32_t)0x10000001)

#define IS_I2C_CLEAR_FLAG(FLAG) ((((FLAG) & (uint16_t)0x20FF) == 0x00) && ((FLAG) != (uint16_t)0x00))

#define IS_I2C_GET_FLAG(FLAG) (((FLAG) == I2C_FLAG_DUALF) || ((FLAG) == I2C_FLAG_SMBHOST) || \
                               ((FLAG) == I2C_FLAG_SMBDEFAULT) || ((FLAG) == I2C_FLAG_GENCALL) || \
                               ((FLAG) == I2C_FLAG_TRA) || ((FLAG) == I2C_FLAG_BUSY) || \
                               ((FLAG) == I2C_FLAG_MSL) || ((FLAG) == I2C_FLAG_SMBALERT) || \
                               ((FLAG) == I2C_FLAG_TIMEOUT) || ((FLAG) == I2C_FLAG_PECERR) || \
                               ((FLAG) == I2C_FLAG_OVR) || ((FLAG) == I2C_FLAG_AF) || \
                               ((FLAG) == I2C_FLAG_ARLO) || ((FLAG) == I2C_FLAG_BERR) || \
                               ((FLAG) == I2C_FLAG_TXE) || ((FLAG) == I2C_FLAG_RXNE) || \
                               ((FLAG) == I2C_FLAG_STOPF) || ((FLAG) == I2C_FLAG_ADD10) || \
                               ((FLAG) == I2C_FLAG_BTF) || ((FLAG) == I2C_FLAG_ADDR) || \
                               ((FLAG) == I2C_FLAG_SB))

/*========================================
     
                     I2C Master Events (Events grouped in order of communication)
                                                        ==========================================*/
/* --EV5 */
#define  I2C_EVENT_MASTER_MODE_SELECT                      ((uint32_t)0x00030001)  /* BUSY, MSL and SB flag */

/* --EV6 */
#define  I2C_EVENT_MASTER_TRANSMITTER_MODE_SELECTED        ((uint32_t)0x00070082)  /* BUSY, MSL, ADDR, TXE and TRA flags */
#define  I2C_EVENT_MASTER_RECEIVER_MODE_SELECTED           ((uint32_t)0x00030002)  /* BUSY, MSL and ADDR flags */
/* --EV9 */
#define  I2C_EVENT_MASTER_MODE_ADDRESS10                   ((uint32_t)0x00030008)  /* BUSY, MSL and ADD10 flags */

/* Master RECEIVER mode -----------------------------*/ 
/* --EV7 */
#define  I2C_EVENT_MASTER_BYTE_RECEIVED                    ((uint32_t)0x00030040)  /* BUSY, MSL and RXNE flags */

/* Master TRANSMITTER mode --------------------------*/
/* --EV8 */
#define I2C_EVENT_MASTER_BYTE_TRANSMITTING                 ((uint32_t)0x00070080) /* TRA, BUSY, MSL, TXE flags */
/* --EV8_2 */
#define  I2C_EVENT_MASTER_BYTE_TRANSMITTED                 ((uint32_t)0x00070084)  /* TRA, BUSY, MSL, TXE and BTF flags */


/*========================================
     
                     I2C Slave Events (Events grouped in order of communication)
                                                        ==========================================*/

/* --EV1  (all the events below are variants of EV1) */   
/* 1) Case of One Single Address managed by the slave */
#define  I2C_EVENT_SLAVE_RECEIVER_ADDRESS_MATCHED          ((uint32_t)0x00020002) /* BUSY and ADDR flags */
#define  I2C_EVENT_SLAVE_TRANSMITTER_ADDRESS_MATCHED       ((uint32_t)0x00060082) /* TRA, BUSY, TXE and ADDR flags */

/* 2) Case of Dual address managed by the slave */
#define  I2C_EVENT_SLAVE_RECEIVER_SECONDADDRESS_MATCHED    ((uint32_t)0x00820000)  /* DUALF and BUSY flags */
#define  I2C_EVENT_SLAVE_TRANSMITTER_SECONDADDRESS_MATCHED ((uint32_t)0x00860080)  /* DUALF, TRA, BUSY and TXE flags */

/* 3) Case of General Call enabled for the slave */
#define  I2C_EVENT_SLAVE_GENERALCALLADDRESS_MATCHED        ((uint32_t)0x00120000)  /* GENCALL and BUSY flags */

/* Slave RECEIVER mode --------------------------*/ 
/* --EV2 */
#define  I2C_EVENT_SLAVE_BYTE_RECEIVED                     ((uint32_t)0x00020040)  /* BUSY and RXNE flags */
/* --EV4  */
#define  I2C_EVENT_SLAVE_STOP_DETECTED                     ((uint32_t)0x00000010)  /* STOPF flag */

/* Slave TRANSMITTER mode -----------------------*/
/* --EV3 */
#define  I2C_EVENT_SLAVE_BYTE_TRANSMITTED                  ((uint32_t)0x00060084)  /* TRA, BUSY, TXE and BTF flags */
#define  I2C_EVENT_SLAVE_BYTE_TRANSMITTING                 ((uint32_t)0x00060080)  /* TRA, BUSY and TXE flags */
/* --EV3_2 */
#define  I2C_EVENT_SLAVE_ACK_FAILURE                       ((uint32_t)0x00000400)  /* AF flag */

/*===========================      End of Events Description           ==========================================*/

#define IS_I2C_EVENT(EVENT) (((EVENT) == I2C_EVENT_SLAVE_TRANSMITTER_ADDRESS_MATCHED) || \
                             ((EVENT) == I2C_EVENT_SLAVE_RECEIVER_ADDRESS_MATCHED) || \
                             ((EVENT) == I2C_EVENT_SLAVE_TRANSMITTER_SECONDADDRESS_MATCHED) || \
                             ((EVENT) == I2C_EVENT_SLAVE_RECEIVER_SECONDADDRESS_MATCHED) || \
                             ((EVENT) == I2C_EVENT_SLAVE_GENERALCALLADDRESS_MATCHED) || \
                             ((EVENT) == I2C_EVENT_SLAVE_BYTE_RECEIVED) || \
                             ((EVENT) == (I2C_EVENT_SLAVE_BYTE_RECEIVED | I2C_FLAG_DUALF)) || \
                             ((EVENT) == (I2C_EVENT_SLAVE_BYTE_RECEIVED | I2C_FLAG_GENCALL)) || \
                             ((EVENT) == I2C_EVENT_SLAVE_BYTE_TRANSMITTED) || \
                             ((EVENT) == (I2C_EVENT_SLAVE_BYTE_TRANSMITTED | I2C_FLAG_DUALF)) || \
                             ((EVENT) == (I2C_EVENT_SLAVE_BYTE_TRANSMITTED | I2C_FLAG_GENCALL)) || \
                             ((EVENT) == I2C_EVENT_SLAVE_STOP_DETECTED) || \
                             ((EVENT) == I2C_EVENT_MASTER_MODE_SELECT) || \
                             ((EVENT) == I2C_EVENT_MASTER_TRANSMITTER_MODE_SELECTED) || \
                             ((EVENT) == I2C_EVENT_MASTER_RECEIVER_MODE_SELECTED) || \
                             ((EVENT) == I2C_EVENT_MASTER_BYTE_RECEIVED) || \
                             ((EVENT) == I2C_EVENT_MASTER_BYTE_TRANSMITTED) || \
                             ((EVENT) == I2C_EVENT_MASTER_BYTE_TRANSMITTING) || \
                             ((EVENT) == I2C_EVENT_MASTER_MODE_ADDRESS10) || \
                             ((EVENT) == I2C_EVENT_SLAVE_ACK_FAILURE))

#define IS_I2C_OWN_ADDRESS1(ADDRESS1) ((ADDRESS1) <= 0x3FF)

#define IS_I2C_CLOCK_SPEED(SPEED) (((SPEED) >= 0x1) && ((SPEED) <= 400000))

void I2C_DeInit(I2C_TypeDef* I2Cx);
void I2C_Init(I2C_TypeDef* I2Cx, I2C_InitTypeDef* I2C_InitStruct);
void I2C_StructInit(I2C_InitTypeDef* I2C_InitStruct);
void I2C_Cmd(I2C_TypeDef* I2Cx, FunctionalState NewState);
void I2C_DMACmd(I2C_TypeDef* I2Cx, FunctionalState NewState);
void I2C_DMALastTransferCmd(I2C_TypeDef* I2Cx, FunctionalState NewState);
void I2C_GenerateSTART(I2C_TypeDef* I2Cx, FunctionalState NewState);
void I2C_GenerateSTOP(I2C_TypeDef* I2Cx, FunctionalState NewState);
void I2C_AcknowledgeConfig(I2C_TypeDef* I2Cx, FunctionalState NewState);
void I2C_OwnAddress2Config(I2C_TypeDef* I2Cx, uint8_t Address);
void I2C_DualAddressCmd(I2C_TypeDef* I2Cx, FunctionalState NewState);
void I2C_GeneralCallCmd(I2C_TypeDef* I2Cx, FunctionalState NewState);
void I2C_ITConfig(I2C_TypeDef* I2Cx, uint16_t I2C_IT, FunctionalState NewState);
void I2C_SendData(I2C_TypeDef* I2Cx, uint8_t Data);
uint8_t I2C_ReceiveData(I2C_TypeDef* I2Cx);
void I2C_Send7bitAddress(I2C_TypeDef* I2Cx, uint8_t Address, uint8_t I2C_Direction);
uint16_t I2C_ReadRegister(I2C_TypeDef* I2Cx, uint8_t I2C_Register);
void I2C_SoftwareResetCmd(I2C_TypeDef* I2Cx, FunctionalState NewState);
void I2C_NACKPositionConfig(I2C_TypeDef* I2Cx, uint16_t I2C_NACKPosition);
void I2C_SMBusAlertConfig(I2C_TypeDef* I2Cx, uint16_t I2C_SMBusAlert);
void I2C_TransmitPEC(I2C_TypeDef* I2Cx, FunctionalState NewState);
void I2C_PECPositionConfig(I2C_TypeDef* I2Cx, uint16_t I2C_PECPosition);
void I2C_CalculatePEC(I2C_TypeDef* I2Cx, FunctionalState NewState);
uint8_t I2C_GetPEC(I2C_TypeDef* I2Cx);
void I2C_ARPCmd(I2C_TypeDef* I2Cx, FunctionalState NewState);
void I2C_StretchClockCmd(I2C_TypeDef* I2Cx, FunctionalState NewState);
void I2C_FastModeDutyCycleConfig(I2C_TypeDef* I2Cx, uint16_t I2C_DutyCycle);

ErrorStatus I2C_CheckEvent(I2C_TypeDef* I2Cx, uint32_t I2C_EVENT);
uint32_t I2C_GetLastEvent(I2C_TypeDef* I2Cx);
FlagStatus I2C_GetFlagStatus(I2C_TypeDef* I2Cx, uint32_t I2C_FLAG);
void I2C_ClearFlag(I2C_TypeDef* I2Cx, uint32_t I2C_FLAG);
ITStatus I2C_GetITStatus(I2C_TypeDef* I2Cx, uint32_t I2C_IT);
void I2C_ClearITPendingBit(I2C_TypeDef* I2Cx, uint32_t I2C_IT);

#ifdef __cplusplus
}
#endif

#endif /*__STM32F10x_I2C_H */

/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/