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/******************** (C) COPYRIGHT 2008 STMicroelectronics ********************
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* File Name          : 91x_i2c.h
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* Author             : MCD Application Team
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* Version            : V2.1
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* Date               : 12/22/2008
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* Description        : This file contains all the functions prototypes for the
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*                      I2C firmware library.
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********************************************************************************
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* THE PRESENT SOFTWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
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* WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE TIME.
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* AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY DIRECT,
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* INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM THE
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* CONTENT OF SUCH SOFTWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING
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* INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
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*******************************************************************************/
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/* Define to prevent recursive inclusion ------------------------------------ */
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#ifndef __91x_I2C_H
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#define __91x_I2C_H
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/* Includes ----------------------------------------------------------------- */
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#include "91x_map.h"
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/* Exported types ----------------------------------------------------------- */
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/* I2C Init structure definition */
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typedef struct
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{
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   u32 I2C_CLKSpeed;
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   u16 I2C_OwnAddress;
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   u8  I2C_GeneralCall;
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   u8  I2C_Ack;
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}I2C_InitTypeDef;
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/* Exported constants --------------------------------------------------------*/
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#define  I2C_GeneralCall_Enable      0x10
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#define  I2C_GeneralCall_Disable     0xEF
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/* Acknowledgement */
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#define  I2C_Ack_Enable      0x04
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#define  I2C_Ack_Disable     0xFB
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/* I2C Flags */
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#define  I2C_FLAG_SB      0x0001
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#define  I2C_FLAG_M_SL    0x0002
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#define  I2C_FLAG_ADSL    0x0004
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#define  I2C_FLAG_BTF     0x0008
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#define  I2C_FLAG_BUSY    0x0010
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#define  I2C_FLAG_TRA     0x0020
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#define  I2C_FLAG_ADD10   0x0040
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#define  I2C_FLAG_EVF     0x0080
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#define  I2C_FLAG_GCAL    0x0100
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#define  I2C_FLAG_BERR    0x0200
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#define  I2C_FLAG_ARLO    0x0400
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#define  I2C_FLAG_STOPF   0x0800
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#define  I2C_FLAG_AF      0x1000
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#define  I2C_FLAG_ENDAD   0x2000
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#define  I2C_FLAG_ACK     0x4000
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/* I2C Events */
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#define  I2C_EVENT_SLAVE_ADDRESS_MATCHED   ( I2C_FLAG_EVF | I2C_FLAG_BUSY | I2C_FLAG_ADSL)
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#define  I2C_EVENT_SLAVE_BYTE_RECEIVED     ( I2C_FLAG_EVF | I2C_FLAG_BUSY | I2C_FLAG_BTF )
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#define  I2C_EVENT_SLAVE_BYTE_TRANSMITTED  ( I2C_FLAG_EVF | I2C_FLAG_BUSY | I2C_FLAG_BTF  | I2C_FLAG_TRA )
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#define  I2C_EVENT_MASTER_MODE_SELECT      ( I2C_FLAG_EVF | I2C_FLAG_BUSY | I2C_FLAG_M_SL | I2C_FLAG_SB )
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#define  I2C_EVENT_MASTER_MODE_SELECTED    ( I2C_FLAG_EVF | I2C_FLAG_BUSY | I2C_FLAG_M_SL | I2C_FLAG_ENDAD )
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#define  I2C_EVENT_MASTER_BYTE_RECEIVED    ( I2C_FLAG_EVF | I2C_FLAG_BUSY | I2C_FLAG_M_SL | I2C_FLAG_BTF )
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#define  I2C_EVENT_MASTER_BYTE_TRANSMITTED ( I2C_FLAG_EVF | I2C_FLAG_BUSY | I2C_FLAG_M_SL | I2C_FLAG_BTF | I2C_FLAG_TRA )
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#define  I2C_EVENT_MASTER_MODE_ADDRESS10   ( I2C_FLAG_EVF | I2C_FLAG_BUSY | I2C_FLAG_M_SL |I2C_FLAG_ADD10 )
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#define  I2C_EVENT_SLAVE_STOP_DETECTED     ( I2C_FLAG_EVF | I2C_FLAG_STOPF )
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#define  I2C_EV31                          ( I2C_FLAG_EVF | I2C_FLAG_BUSY | I2C_FLAG_BTF  | I2C_FLAG_TRA | I2C_FLAG_AF)
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#define  I2C_EVENT_SLAVE_ACK_FAILURE       (  I2C_FLAG_EVF | I2C_FLAG_BUSY |I2C_FLAG_AF)
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#define  I2C_EVENT_ALL                     (  I2C_FLAG_EVF | I2C_FLAG_BUSY |I2C_FLAG_AF |I2C_FLAG_BTF)
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#define  I2C_BUS_ERROR_DETECTED       I2C_FLAG_BERR
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#define  I2C_ARBITRATION_LOST         I2C_FLAG_ARLO
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#define  I2C_SLAVE_GENERAL_CALL       (I2C_FLAG_BUSY | I2C_FLAG_GCAL)
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/* Master/Receiver Mode */
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#define  I2C_MODE_TRANSMITTER          0x00
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#define  I2C_MODE_RECEIVER             0x01
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/* I2C Registers offset */
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#define  I2C_CR     0x00
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#define  I2C_SR1    0x04
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#define  I2C_SR2    0x08
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#define  I2C_CCR    0x0C
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#define  I2C_OAR1   0x10
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#define  I2C_OAR2   0x14
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#define  I2C_DR     0x18
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#define  I2C_ECCR   0x1C
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/* Exported macro ------------------------------------------------------------*/
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/* Exported functions ------------------------------------------------------- */
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void I2C_DeInit(I2C_TypeDef* I2Cx);
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void I2C_Init(I2C_TypeDef* I2Cx, I2C_InitTypeDef* I2C_InitStruct);
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void I2C_StructInit(I2C_InitTypeDef* I2C_InitStruct);
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void I2C_Cmd(I2C_TypeDef* I2Cx, FunctionalState NewState);
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void I2C_GenerateStart(I2C_TypeDef* I2Cx, FunctionalState NewState);
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void I2C_GenerateSTOP(I2C_TypeDef* I2Cx, FunctionalState NewState);
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void I2C_AcknowledgeConfig(I2C_TypeDef *I2Cx, FunctionalState NewState);
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void I2C_ITConfig(I2C_TypeDef *I2Cx, FunctionalState NewState);
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void I2C_Send7bitAddress(I2C_TypeDef* I2Cx, u8 Address, u8 Direction);
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u8 I2C_ReadRegister(I2C_TypeDef* I2Cx, u8 I2C_Register);
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FlagStatus I2C_GetFlagStatus(I2C_TypeDef* I2Cx, u16 I2C_FLAG);
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void I2C_ClearFlag(I2C_TypeDef* I2Cx, u16 I2C_FLAG, ...);
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void I2C_SendData(I2C_TypeDef* I2Cx, u8 bData);
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u8 I2C_ReceiveData(I2C_TypeDef* I2Cx);
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u16 I2C_GetLastEvent(I2C_TypeDef* I2Cx);
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ErrorStatus I2C_CheckEvent(I2C_TypeDef* I2Cx,u16 I2C_Event);
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#endif /* __91x_I2C_H */
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/******************* (C) COPYRIGHT 2008 STMicroelectronics *****END OF FILE****/