can0.h

很明显了

//**********************************************
//**************Version 0.1     
//**************Simon Liu 
//**************2004/12/31
//**************file name can0.h
//*********************************************/
//*
//*             description
//*This file defined the base address of the Can1 
//*and also defined the register of the sja1000
//*********************************************/
#ifdef	KERNEL
#define TRACE_TXT(text) 	{if(can0_trace) {console_print(text);console_print(text);}}
#define TRACE_CHR(chr)		{if(can0_trace)	console_print(chr);}
#define	CAN0_READ		1
#define	CAN0_WRITE	0
#endif
#define MAX_BUF			120
//typedef volatile unsigned int AT91_REG;
struct can0_buf
{
	int buf_size;
	unsigned char buffer[MAX_BUF];
	struct can_buf *link;
};



/***********define the registers**************/
#define ModeControlReg 0
#define RM_RR_Bit 0x01 /*复位模式请求位*/
#if defined (PeliCANMode)
#define LOM_Bit 0x02 /*仅听模式位*/
#define STM_Bit 0x04 /*自我测试模式位*/
#define AFM_Bit 0x08 /*验收滤波器模式位*/
#define SM_Bit 0x10 /*进入休眠模式位*/
#endif

/*命令寄存器的地址和位定义*/
#define CommandReg 1
#define TR_Bit 0x01 /*发送请求位*/
#define AT_Bit 0x02 /*中止发送位*/
#define RRB_Bit 0x04 /*释放接收缓冲器位*/
#define CDO_Bit 0x08 /*清除数据超载位*/
#if defined (PeliCANMode)
#define SRR_Bit 0x10 /*自身接收请求位*/
#else /*BasicCAN 模式*/
#define GTS_Bit 0x10 /*进入睡眠模式位*/
#endif


/*状态寄存器的地址和位定义*/
#define StatusReg 2 
#define RBS_Bit 0x01 /*接收缓冲器状态位*/
#define DOS_Bit 0x02 /*数据超载状态位*/
#define TBS_Bit 0x04 /*发送缓冲器状态位*/
#define TCS_Bit 0x08 /*发送完成状态位*/
#define RS_Bit 0x10 /*接收状态位*/
#define TS_Bit 0x20 /*发送状态位*/
#define ES_Bit 0x40 /*错误状态位*/
#define BS_Bit 0x80 /*总线状态位*/

/*中断寄存器的地址和位定义*/
#define InterruptReg 3
#define RI_Bit 0x01 /*接收中断位*/
#define TI_Bit 0x02 /*发送中断位*/
#define EI_Bit 0x04 /*错误警告中断位*/
#define DOI_Bit 0x08 /*数据超载中断位*/
#define WUI_Bit 0x10 /*唤醒中断位*/
#if defined (PeliCANMode)
#define EPI_Bit 0x20 /*错误被动中断位*/
#define ALI_Bit 0x40 /*仲裁丢失中断位*/
#define BEI_Bit 0x80 /*总线错误中断位*/
#endif

/*中断使能和控制寄存器的地址和位定义*/
#if defined (PeliCANMode)
#define InterruptEnReg 4 /* PeliCAN 模式*/                    /*changed by Simon Liu the old data is 2*/
#define RIE_Bit 0x01 /*接收中断使能位*/
#define TIE_Bit 0x02 /*发送中断使能位*/
#define EIE_Bit 0x04 /*错误警告中断使能位*/
#define DOIE_Bit 0x08 /*数据超载中断使能位*/
#define WUIE_Bit 0x10 /*唤醒中断使能位*/
#define EPIE_Bit 0x20 /*错误隐性中断使能位*/
#define ALIE_Bit 0x40 /*仲裁丢失中断使能位*/
#define BEIE_Bit 0x80 /*总线错误中断使能位*/
#else /*BasicCAN 模式*/
#define InterruptEnReg 0 /* 控制寄存器*/
#define RIE_Bit 0x02 /*接收中断使能位*/
#define TIE_Bit 0x04 /*发送中断使能位*/
#define EIE_Bit 0x08 /*错误中断使能位*/
#define DOIE_Bit 0x10 /*超载中断使能位*/
#endif

/*总线定时寄存器的地址和位定义*/
#define BusTiming0Reg 6
#define BusTiming1Reg 7
#define SAM_Bit 0x80 
/*采样模式位
1 总线被采样三次
0 总线被采样一次*/

/*输出控制寄存器的地址和位定义*/
#define OutControlReg 8
/*OCMODE1 OCMODE0 */
#define BiPhaseMode 0x00 /*双相输出模式*/
#define NormalMode 0x02 /*正常输出模式*/
#define ClkOutMode 0x03 /*时钟输出模式*/
/*TX1 的输出管脚配置*/
#define OCPOL1_Bit 0x20 /*输出极性控制位*/
#define Tx1Float 0x00 /*配置为悬空*/
#define Tx1PullDn 0x40 /*配置为下拉*/
#define Tx1PullUp 0x80 /*配置为上拉*/
#define Tx1PshPull 0Xc0 /*配置为推挽*/
/*TX0 的输出管脚配置*/
#define OCPOL0_Bit 0x04 /*输出极性控制位*/
#define Tx0Float 0x00 /*配置为悬空*/
#define Tx0PullDn 0x08 /*配置为下拉*/
#define Tx0PullUp 0x10 /*配置为上拉*/
#define Tx0PshPull 0X18 /*配置为推挽*/

/*验收代码和屏蔽寄存器的地址定义*/
#if defined (PeliCANMode)
#define AcceptCode0Reg 16
#define AcceptCode1Reg 17
#define AcceptCode2Reg 18
#define AcceptCode3Reg 19
#define AccepMask0Reg 20
#define AccepMask1Reg 21
#define AccepMask2Reg 22
#define AccepMask3Reg 23
#else /*BasicCAN 模式*/
#define AcceptCodeReg 4
#define AcceptMaskReg 5
#endif

/*Rx-缓冲器的地址定义*/
#if defined (PeliCANMode)
#define RxFramInFo 16
#define RxBuffer1 17
#define RxBuffer2 18
#define RxBuffer3 19
#define RxBuffer4 20
#define RxBuffer5 21
#define RxBuffer6 22
#define RxBuffer7 23
#define RxBuffer8 24
#define RxBuffer9 25
#define RxBuffer10 26
#define RxBuffer11 27
#define RxBuffer12 28
#else /*BasicCAN 模式*/
#define RxBuffer1 20
#define RxBuffer2 21
#define RxBuffer3 22
#define RxBuffer4 23
#define RxBuffer5 24
#define RxBuffer6 25
#define RxBuffer7 26
#define RxBuffer8 27
#define RxBuffer9 28
#define RxBuffer10 29
#endif

/*Tx 缓冲器的地址定义*/
#if defined (PeliCANMode)
/*仅写地址*/
#define TxFramInFo 16
#define TxBuffer1 17
#define TxBuffer2 18
#define TxBuffer3 19
#define TxBuffer4 20
#define TxBuffer5 21
#define TxBuffer6 22
#define TxBuffer7 23
#define TxBuffer8 24
#define TxBuffer9 25
#define TxBuffer10 26
#define TxBuffer11 27
#define TxBuffer12 28

/*仅读地址*/
#define TxFramInFoRd 96
#define TxBufferRd1 97
#define TxBufferRd2 98
#define TxBufferRd3 99
#define TxBufferRd4 100
#define TxBufferRd5 101
#define TxBufferRd6 102
#define TxBufferRd7 103
#define TxBufferRd8 104
#define TxBufferRd9 105
#define TxBufferRd10 106
#define TxBufferRd11 107
#define TxBufferRd12 108
#else /*BasicCAN 模式*/
#define TxBuffer1 10
#define TxBuffer2 11
#define TxBuffer3 12
#define TxBuffer4 13
#define TxBuffer5 14
#define TxBuffer6 15
#define TxBuffer7 16
#define TxBuffer8 17
#define TxBuffer9 18
#define TxBuffer10 19
#endif

/*其他寄存器的地址定义*/
#if defined (PeliCANMode)
#define ArbLostCapReg 11
#define ErrCodeCapReg 12
#define ErrWarnLimitReg 13
#define RxErrCountReg 14
#define TxErrCountReg 15
#define RxMsgCountReg 29
#define RxBufstartAdr 30
#endif

/*时钟分频寄存器的地址和位定义*/
#define ClockDivideReg 31
#define DivBy1 0x07 /*CLKOUT=振荡器频率*/
#define DivBy2 0x00 /*CLKOUT=1/2 振荡器频率*/
#define CLKOff_Bit 0x08 /*时钟关闭位时钟输出管脚控制位*/
#define RXINTEN_Bit 0x20 /*用于接收中断的管脚TX1 */
#define CBP_Bit 0x40 /*CAN 比较器旁路控制位*/
#define CANMode_Bit 0x80 /*CAN 模式控制位*/

/* 使用的常量定义------------------------------------------------------------
------------------------------------- */
#define YES 1
#define NO 0
#define ENABLE 1
#define DISABLE 0
#define ENABLE_N 0
#define DISABLE_N 1
#define INTLEVELACT 0
#define INTEDGEACT 1
#define PRIORITY_LOW 0
#define PRIORITY_HIGH 1
/*寄存器内容默认复位值清除寄存器*/
#define ClrByte 0x00
/*常量清除中断使能寄存器*/
#if defined (PeliCANMode)
#define ClrIntEnSJA ClrByte
#else
#define ClrIntEnSJA ClrByte RM_RR_Bit /*保留复位请求*/
#endif
/*验收代码和屏蔽寄存器的定义*/
#define DontCare 0xFF
/* chip select*/
//#define CS4 0xFFFFFF80
//#define CS5 0XFFFFFF84
/* bus timing values for
- bit-rate : 1 MBit/s
- oscillator frequency : 16 MHz, 0,1%
- maximum tolerated propagation delay : 623 ns
- minimum requested propagation delay : 23 ns */
#define Presc_1MB 0x00 /* baud rate prescaler : 1 */
#define SJW_1MB 0x00 /* SJW : 1 */
#define TSEG1_1MB 0x04 /* TSEG1 : 5 */
#define TSEG2_1MB 0x10 /* TSEG2 : 2 */
/* bus timing values for
- bit-rate : 800 kBit/s
- oscillator frequency : 16 MHz, 1,0%
- maximum tolerated propagation delay : 4450 ns
- minimum requested propagation delay : 500 ns */
#define Presc_800KB 0x00 /* baud rate prescaler : 1 */
#define SJW_800KB 0x00 /* SJW : 1 */
#define TSEG1_800KB 0x06 /* TSEG1 : 7 */
#define TSEG2_800KB 0x10 /* TSEG2 : 2 */

#define Presc_500KB 0x00 /* baud rate prescaler : 1 */
#define SJW_500KB 0x00 /* SJW : 1 */
#define TSEG1_500KB 0x0c /* TSEG1 : 7 */
#define TSEG2_500KB 0x10 /* TSEG2 : 2 */

/* bus timing values for
- bit-rate : 400 kBit/s
- oscillator frequency : 16 MHz, 0,1%
- maximum tolerated propagation delay : 623 ns
- minimum requested propagation delay : 23 ns */
#define Presc_400KB 0x01 /* baud rate prescaler : 2 */
#define SJW_400KB 0x00 /* SJW : 1 */
#define TSEG1_400KB 0x05 /* TSEG1 : 6 */
#define TSEG2_400KB 0x20 /* TSEG2 : 3 */
/* bus timing values for
- bit-rate : 100 kBit/s
- oscillator frequency : 16 MHz, 1,0%
- maximum tolerated propagation delay : 4450 ns
- minimum requested propagation delay : 500 ns */
#define Presc_100KB 0x04 /* baud rate prescaler : 5 */
#define SJW_100KB 0xC0 /* SJW : 4 */
#define TSEG1_100KB 0x0A /* TSEG1 : 11 */
#define TSEG2_100KB 0x30 /* TSEG2 : 4 */
/*- end of definitions of bus timing values ----------------------*/

#define FramFormat_EFF	0x80
#define FramFormat_SFF	0x00
// *****************************************************************************