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+/******************** (C) COPYRIGHT 2008 STMicroelectronics ********************
+* File Name : stm32f10x_i2c.h
+* Author : MCD Application Team
+* Version : V2.0.2
+* Date : 07/11/2008
+* Description : This file contains all the functions prototypes for the
+* I2C firmware library.
+********************************************************************************
+* THE PRESENT FIRMWARE 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 FIRMWARE 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 --------------------------------------------------------*/
+#define IS_I2C_ALL_PERIPH(PERIPH) (((*(u32*)&(PERIPH)) == I2C1_BASE) || \
+ ((*(u32*)&(PERIPH)) == I2C2_BASE))
+
+/* 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)0xDFFF)
+
+#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)0x01008000)
+#define I2C_IT_TIMEOUT ((u32)0x01004000)
+#define I2C_IT_PECERR ((u32)0x01001000)
+#define I2C_IT_OVR ((u32)0x01000800)
+#define I2C_IT_AF ((u32)0x01000400)
+#define I2C_IT_ARLO ((u32)0x01000200)
+#define I2C_IT_BERR ((u32)0x01000100)
+#define I2C_IT_TXE ((u32)0x06000080)
+#define I2C_IT_RXNE ((u32)0x06000040)
+#define I2C_IT_STOPF ((u32)0x02000010)
+#define I2C_IT_ADD10 ((u32)0x02000008)
+#define I2C_IT_BTF ((u32)0x02000004)
+#define I2C_IT_ADDR ((u32)0x02000002)
+#define I2C_IT_SB ((u32)0x02000001)
+
+#define IS_I2C_CLEAR_IT(IT) ((((IT) & (u16)0x20FF) == 0x00) && ((IT) != (u16)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))
+
+/* I2C flags definition */
+/* SR2 register flags */
+#define I2C_FLAG_DUALF ((u32)0x00800000)
+#define I2C_FLAG_SMBHOST ((u32)0x00400000)
+#define I2C_FLAG_SMBDEFAULT ((u32)0x00200000)
+#define I2C_FLAG_GENCALL ((u32)0x00100000)
+#define I2C_FLAG_TRA ((u32)0x00040000)
+#define I2C_FLAG_BUSY ((u32)0x00020000)
+#define I2C_FLAG_MSL ((u32)0x00010000)
+/* SR1 register flags */
+#define I2C_FLAG_SMBALERT ((u32)0x10008000)
+#define I2C_FLAG_TIMEOUT ((u32)0x10004000)
+#define I2C_FLAG_PECERR ((u32)0x10001000)
+#define I2C_FLAG_OVR ((u32)0x10000800)
+#define I2C_FLAG_AF ((u32)0x10000400)
+#define I2C_FLAG_ARLO ((u32)0x10000200)
+#define I2C_FLAG_BERR ((u32)0x10000100)
+#define I2C_FLAG_TXE ((u32)0x10000080)
+#define I2C_FLAG_RXNE ((u32)0x10000040)
+#define I2C_FLAG_STOPF ((u32)0x10000010)
+#define I2C_FLAG_ADD10 ((u32)0x10000008)
+#define I2C_FLAG_BTF ((u32)0x10000004)
+#define I2C_FLAG_ADDR ((u32)0x10000002)
+#define I2C_FLAG_SB ((u32)0x10000001)
+
+#define IS_I2C_CLEAR_FLAG(FLAG) ((((FLAG) & (u16)0x20FF) == 0x00) && ((FLAG) != (u16)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 Events */
+/* EV1 */
+#define I2C_EVENT_SLAVE_TRANSMITTER_ADDRESS_MATCHED ((u32)0x00060082) /* TRA, BUSY, TXE and ADDR flags */
+#define I2C_EVENT_SLAVE_RECEIVER_ADDRESS_MATCHED ((u32)0x00020002) /* BUSY and ADDR flags */
+#define I2C_EVENT_SLAVE_TRANSMITTER_SECONDADDRESS_MATCHED ((u32)0x00860080) /* DUALF, TRA, BUSY and TXE flags */
+#define I2C_EVENT_SLAVE_RECEIVER_SECONDADDRESS_MATCHED ((u32)0x00820000) /* DUALF and BUSY flags */
+#define I2C_EVENT_SLAVE_GENERALCALLADDRESS_MATCHED ((u32)0x00120000) /* GENCALL and BUSY flags */
+
+/* EV2 */
+#define I2C_EVENT_SLAVE_BYTE_RECEIVED ((u32)0x00020040) /* BUSY and RXNE flags */
+
+/* EV3 */
+#define I2C_EVENT_SLAVE_BYTE_TRANSMITTED ((u32)0x00060084) /* TRA, BUSY, TXE and BTF flags */
+
+/* EV4 */
+#define I2C_EVENT_SLAVE_STOP_DETECTED ((u32)0x00000010) /* STOPF flag */
+
+/* EV5 */
+#define I2C_EVENT_MASTER_MODE_SELECT ((u32)0x00030001) /* BUSY, MSL and SB flag */
+
+/* EV6 */
+#define I2C_EVENT_MASTER_TRANSMITTER_MODE_SELECTED ((u32)0x00070082) /* BUSY, MSL, ADDR, TXE and TRA flags */
+#define I2C_EVENT_MASTER_RECEIVER_MODE_SELECTED ((u32)0x00030002) /* BUSY, MSL and ADDR flags */
+
+/* EV7 */
+#define I2C_EVENT_MASTER_BYTE_RECEIVED ((u32)0x00030040) /* BUSY, MSL and RXNE flags */
+
+/* EV8 */
+#define I2C_EVENT_MASTER_BYTE_TRANSMITTED ((u32)0x00070084) /* TRA, BUSY, MSL, TXE and BTF flags */
+
+/* EV9 */
+#define I2C_EVENT_MASTER_MODE_ADDRESS10 ((u32)0x00030008) /* BUSY, MSL and ADD10 flags */
+
+/* EV3_2 */
+#define I2C_EVENT_SLAVE_ACK_FAILURE ((u32)0x00000400) /* AF flag */
+
+#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_MODE_ADDRESS10) || \
+ ((EVENT) == I2C_EVENT_SLAVE_ACK_FAILURE))
+
+/* I2C own address1 -----------------------------------------------------------*/
+#define IS_I2C_OWN_ADDRESS1(ADDRESS1) ((ADDRESS1) <= 0x3FF)
+/* I2C clock speed ------------------------------------------------------------*/
+#define IS_I2C_CLOCK_SPEED(SPEED) (((SPEED) >= 0x1) && ((SPEED) <= 400000))
+
+/* Exported macro ------------------------------------------------------------*/
+/* Exported functions ------------------------------------------------------- */
+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, u8 Address);
+void I2C_DualAddressCmd(I2C_TypeDef* I2Cx, FunctionalState NewState);
+void I2C_GeneralCallCmd(I2C_TypeDef* I2Cx, FunctionalState NewState);
+void I2C_ITConfig(I2C_TypeDef* I2Cx, u16 I2C_IT, FunctionalState NewState);
+void I2C_SendData(I2C_TypeDef* I2Cx, u8 Data);
+u8 I2C_ReceiveData(I2C_TypeDef* I2Cx);
+void I2C_Send7bitAddress(I2C_TypeDef* I2Cx, u8 Address, u8 I2C_Direction);
+u16 I2C_ReadRegister(I2C_TypeDef* I2Cx, u8 I2C_Register);
+void I2C_SoftwareResetCmd(I2C_TypeDef* I2Cx, FunctionalState NewState);
+void I2C_SMBusAlertConfig(I2C_TypeDef* I2Cx, u16 I2C_SMBusAlert);
+void I2C_TransmitPEC(I2C_TypeDef* I2Cx, FunctionalState NewState);
+void I2C_PECPositionConfig(I2C_TypeDef* I2Cx, u16 I2C_PECPosition);
+void I2C_CalculatePEC(I2C_TypeDef* I2Cx, FunctionalState NewState);
+u8 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, u16 I2C_DutyCycle);
+u32 I2C_GetLastEvent(I2C_TypeDef* I2Cx);
+ErrorStatus I2C_CheckEvent(I2C_TypeDef* I2Cx, u32 I2C_EVENT);
+FlagStatus I2C_GetFlagStatus(I2C_TypeDef* I2Cx, u32 I2C_FLAG);
+void I2C_ClearFlag(I2C_TypeDef* I2Cx, u32 I2C_FLAG);
+ITStatus I2C_GetITStatus(I2C_TypeDef* I2Cx, u32 I2C_IT);
+void I2C_ClearITPendingBit(I2C_TypeDef* I2Cx, u32 I2C_IT);
+
+#endif /*__STM32F10x_I2C_H */
+
+/******************* (C) COPYRIGHT 2008 STMicroelectronics *****END OF FILE****/
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