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| /******************** (C) COPYRIGHT 2008 STMicroelectronics ******************** |
| * File Name : 91x_can.h |
| * Author : MCD Application Team |
| * Version : V2.1 |
| * Date : 12/22/2008 |
| * Description : This file contains all the functions prototypes for the |
| * CAN bus 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 __91x_CAN_H |
| #define __91x_CAN_H |
| |
| /* Includes ------------------------------------------------------------------*/ |
| #include "91x_map.h" |
| |
| /* Exported types ------------------------------------------------------------*/ |
| |
| /* CAN Init structure define */ |
| typedef struct |
| { |
| u8 CAN_ConfigParameters; |
| u32 CAN_Bitrate; |
| }CAN_InitTypeDef; |
| |
| /* Exported constants --------------------------------------------------------*/ |
| /* Standard bitrates available*/ |
| enum |
| { |
| CAN_BITRATE_100K, |
| CAN_BITRATE_125K, |
| CAN_BITRATE_250K, |
| CAN_BITRATE_500K, |
| CAN_BITRATE_1M |
| }; |
| |
| /* Control register*/ |
| #define CAN_CR_TEST 0x0080 |
| #define CAN_CR_CCE 0x0040 |
| #define CAN_CR_DAR 0x0020 |
| #define CAN_CR_EIE 0x0008 |
| #define CAN_CR_SIE 0x0004 |
| #define CAN_CR_IE 0x0002 |
| #define CAN_CR_INIT 0x0001 |
| |
| /* Status register */ |
| #define CAN_SR_BOFF 0x0080 |
| #define CAN_SR_EWARN 0x0040 |
| #define CAN_SR_EPASS 0x0020 |
| #define CAN_SR_RXOK 0x0010 |
| #define CAN_SR_TXOK 0x0008 |
| #define CAN_SR_LEC 0x0007 |
| |
| /* Test register*/ |
| #define CAN_TESTR_RX 0x0080 |
| #define CAN_TESTR_TX1 0x0040 |
| #define CAN_TESTR_TX0 0x0020 |
| #define CAN_TESTR_LBACK 0x0010 |
| #define CAN_TESTR_SILENT 0x0008 |
| #define CAN_TESTR_BASIC 0x0004 |
| |
| /* IFn / Command Request register*/ |
| #define CAN_CRR_BUSY 0x8000 |
| |
| /* IFn / Command Mask register*/ |
| #define CAN_CMR_WRRD 0x0080 |
| #define CAN_CMR_MASK 0x0040 |
| #define CAN_CMR_ARB 0x0020 |
| #define CAN_CMR_CONTROL 0x0010 |
| #define CAN_CMR_CLRINTPND 0x0008 |
| #define CAN_CMR_TXRQSTNEWDAT 0x0004 |
| #define CAN_CMR_DATAA 0x0002 |
| #define CAN_CMR_DATAB 0x0001 |
| |
| /* IFn / Mask 2 register*/ |
| #define CAN_M2R_MXTD 0x8000 |
| #define CAN_M2R_MDIR 0x4000 |
| |
| /* IFn / Arbitration 2 register*/ |
| #define CAN_A2R_MSGVAL 0x8000 |
| #define CAN_A2R_XTD 0x4000 |
| #define CAN_A2R_DIR 0x2000 |
| |
| /* IFn / Message Control register*/ |
| #define CAN_MCR_NEWDAT 0x8000 |
| #define CAN_MCR_MSGLST 0x4000 |
| #define CAN_MCR_INTPND 0x2000 |
| #define CAN_MCR_UMASK 0x1000 |
| #define CAN_MCR_TXIE 0x0800 |
| #define CAN_MCR_RXIE 0x0400 |
| #define CAN_MCR_RMTEN 0x0200 |
| #define CAN_MCR_TXRQST 0x0100 |
| #define CAN_MCR_EOB 0x0080 |
| |
| |
| /* Wake-up modes*/ |
| enum |
| { |
| CAN_WAKEUP_ON_EXT, |
| CAN_WAKEUP_ON_CAN |
| }; |
| |
| |
| /* CAN message structure*/ |
| typedef struct |
| { |
| u32 IdType; |
| u32 Id; |
| u8 Dlc; |
| u8 Data[8]; |
| } canmsg; |
| |
| /* Message ID types*/ |
| enum |
| { |
| CAN_STD_ID, |
| CAN_EXT_ID |
| }; |
| |
| /* Message ID limits*/ |
| |
| #define CAN_LAST_STD_ID ((1<<11) - 1) |
| #define CAN_LAST_EXT_ID ((1L<<29) - 1) |
| |
| /* Exported functions ------------------------------------------------------- */ |
| void CAN_DeInit (void); |
| void CAN_Init(CAN_InitTypeDef* CAN_InitStruct); |
| void CAN_StructInit(CAN_InitTypeDef* CAN_InitStruct); |
| void CAN_SetBitrate(u32 bitrate); |
| void CAN_SetTiming(u32 tseg1, u32 tseg2, u32 sjw, u32 brp); |
| ErrorStatus CAN_SetUnusedMsgObj(u32 msgobj); |
| ErrorStatus CAN_SetTxMsgObj(u32 msgobj, u32 idType, FunctionalState RemoteEN); |
| ErrorStatus CAN_SetRxMsgObj(u32 msgobj, u32 idType, u32 idLow, u32 idHigh, bool singleOrFifoLast); |
| ErrorStatus CAN_SetUnusedAllMsgObj(void); |
| ErrorStatus CAN_ReleaseMessage(u32 msgobj); |
| ErrorStatus CAN_UpdateMsgObj(u32 msgobj, canmsg* pCanMsg); |
| ErrorStatus CAN_SendMessage(u32 msgobj, canmsg* pCanMsg); |
| ErrorStatus CAN_TransmitRequest( u32 msgobj ); |
| ErrorStatus CAN_ReceiveMessage(u32 msgobj, bool release, canmsg* pCanMsg); |
| void CAN_WaitEndOfTx(void); |
| ErrorStatus CAN_BasicSendMessage(canmsg* pCanMsg); |
| ErrorStatus CAN_BasicReceiveMessage(canmsg* pCanMsg); |
| void CAN_EnterInitMode(u8 InitMask); |
| void CAN_LeaveInitMode(void); |
| void CAN_EnterTestMode(u8 TestMask); |
| void CAN_LeaveTestMode(void); |
| void CAN_ReleaseTxMessage(u32 msgobj); |
| void CAN_ReleaseRxMessage(u32 msgobj); |
| FlagStatus CAN_GetMsgReceiveStatus(u32 msgobj); |
| FlagStatus CAN_GetMsgTransmitRequestStatus(u32 msgobj); |
| FlagStatus CAN_GetMsgInterruptStatus(u32 msgobj); |
| FlagStatus CAN_GetMsgValidStatus(u32 msgobj); |
| FlagStatus CAN_GetFlagStatus ( u32 CAN_Flag ); |
| u32 CAN_GetTransmitErrorCounter ( void ); |
| u32 CAN_GetReceiveErrorCounter ( void ); |
| |
| #endif /* __91x_CAN_H */ |
| |
| /******************* (C) COPYRIGHT 2008 STMicroelectronics *****END OF FILE****/ |