?? sd_includes.h

?? 使用FREESCALE的16位增強(qiáng)型芯片實(shí)現(xiàn)的對(duì)SD卡進(jìn)行讀取的代碼
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	unsigned BIT02:3;	
	unsigned BIT3:1;
	unsigned BIT4:1;
	unsigned BIT5:1;	
	unsigned BIT6:1;	
	unsigned BIT7:1;	

} ;

struct SD_bits01{
	unsigned BIT8:1;	// MSB first
	unsigned BIT9:1;
	unsigned BIT10:1;
	unsigned BIT11:1;
	unsigned BIT12:1;
	unsigned BIT13:1;
	unsigned BIT14:1;
	unsigned BIT15:1;
	unsigned BIT01:2;	
	unsigned BIT2:1;
	unsigned BIT3:1;
	unsigned BIT4:1;
	unsigned BIT5:1;	
	unsigned BIT6:1;	
	unsigned BIT7:1;	

} ;

struct SD_bits05{
	unsigned BIT8:1;	// MSB first
	unsigned BIT9:1;
	unsigned BIT10:1;
	unsigned BIT11:1;
	unsigned BIT12:1;
	unsigned BIT13:1;
	unsigned BIT14:1;
	unsigned BIT15:1;
	unsigned BIT05:6;	
	unsigned BIT6:1;	
	unsigned BIT7:1;	
} ;

struct SD_bits06{
	unsigned BIT8:1;	// MSB first
	unsigned BIT9:1;
	unsigned BIT10:1;
	unsigned BIT11:1;
	unsigned BIT12:1;
	unsigned BIT13:1;
	unsigned BIT14:1;
	unsigned BIT15:1;
	unsigned BIT06:7;	
	unsigned BIT7:1;	
} ;
#define SD_TimeOut 999999

/*
struct bits09{
	unsigned BIT09:10;	// LSB First 
	unsigned BIT10:1;
	unsigned BIT11:1;
	unsigned BIT12:1;
	unsigned BIT13:1;
	unsigned BIT14:1;
	unsigned BIT15:1;
} ;*/
	

// ===================================================================
//
//	Registers Address definitions
//
// ===================================================================

#define	SD_BUSPORT_BASE	0x02c0																	// Base Address of SDHC Module
#define SD_SDCON 	*(volatile muint16*)(SD_BUSPORT_BASE+0x00) 	// SDHC Control Register //
#define SD_SDSTAT 	*(volatile muint16*)(SD_BUSPORT_BASE+0x02)	// SDHC Status Register 		//(Read only bit)
#define SD_SDCLKCON *(volatile muint16*)(SD_BUSPORT_BASE+0x04) 
#define SD_SDCMDATCON 	*(volatile muint16*)(SD_BUSPORT_BASE+0x06)	// Command and Data Control Register 
#define SD_SDRTOUT 	*(volatile muint16*)(SD_BUSPORT_BASE+0x08) 	// Response Timeout Register //
#define SD_SDRDTOUT *(volatile muint16*)(SD_BUSPORT_BASE+0x0A)		// Read Timeout Register //
#define SD_SDBLKLN 	*(volatile muint16*)(SD_BUSPORT_BASE+0x0C) 	// Block Length Register //	//(Write bit)
#define SD_SDNOBLK 	*(volatile muint16*)(SD_BUSPORT_BASE+0x0E)		/* Number of Blocks Register */
#define SD_SDINTREN *(volatile muint16*)(SD_BUSPORT_BASE+0x10)  // Interrupt Enable Register //
#define SD_SDCMDNO  *(volatile muint16*)(SD_BUSPORT_BASE+0x12) 	 // Command Register //
#define SD_SDARGH 	*(volatile muint16*)(SD_BUSPORT_BASE+0x14)	 	// Argument High Register //
#define SD_SDARGL 	*(volatile muint16*)(SD_BUSPORT_BASE+0x16)		// Argument Low Register //
#define SD_SDRSP 	*(volatile muint16*)(SD_BUSPORT_BASE+0x18)		// Response Register
#define SD_SDATA 	*(volatile muint16*)(SD_BUSPORT_BASE+0x1A) 	// SD Data Register

	
//t #define SD_SDCON 	*(volatile muint16*)(BUSPORT_BASE+0x00) 	/* SDHC Control Register */
//bit 15~6 are unimplemented
	#define	SD_SDEN		((struct SD_bits*)&SD_SDCON)->BIT0	// Module enable, 1= module Enable
	#define	SD_QIEN		((struct SD_bits*)&SD_SDCON)->BIT1	// Fast data transfer enable, 1= fast data transfer
	#define	SD_PDEN		((struct SD_bits*)&SD_SDCON)->BIT2	// Pull-down enable, 1= Pull-down Enable
	#define	SD_PUEN		((struct SD_bits*)&SD_SDCON)->BIT3	// Pull-up enable, 1= Pull-up Enable
	#define	SD_IRST		((struct SD_bits*)&SD_SDCON)->BIT4	// Interna reset enable, 1= internal reset Enable
	#define	SD_LBUF		((struct SD_bits*)&SD_SDCON)->BIT5	// Last data buffer, 1= the last block of data to be sent or received
	
//t #define SD_SDSTAT 	*(volatile muint16*)(BUSPORT_BASE+0x02)	// SDHC Status Register 		//(Read only bit)
//bit	15,14 are unimplemented
	#define	SD_RDTO		((struct SD_bits56*)&SD_SDSTAT)->BIT0	// Read data timeout, 1= read data timeout
	#define	SD_RSPTO	((struct SD_bits56*)&SD_SDSTAT)->BIT1	// Response timeout, 1= response timeout
	#define	SD_WR_ECRC	((struct SD_bits56*)&SD_SDSTAT)->BIT2	// CRC write error, 1= write data CRC error
	#define	SD_RD_ECRC	((struct SD_bits56*)&SD_SDSTAT)->BIT3	// CRC read error, 1= read data CRC error
	#define	SD_RSP_ECRC	((struct SD_bits56*)&SD_SDSTAT)->BIT4	// Response CRC error, 1= response CRC error
	#define	SD_WR_ECRC_CODE	((struct bits56*)&SD_SDSTAT)->BIT56	// bit 5&6, Write CRC error code, 00= no transmit error, 01=transmit error, 10=no CRC response
	#define	SDCKON		((struct SD_bits56*)&SD_SDSTAT)->BIT7	// SD card clock running, 1= SD card clock running
	#define	SD_DTDN		((struct SD_bits56*)&SD_SDSTAT)->BIT8	// Data transfer done, 1= data transfer done
	#define	SD_WRDN		((struct SD_bits56*)&SD_SDSTAT)->BIT9	// Write SD memory card done, 1= busy deasserted (programmed successfully)
	#define	SD_ECR		((struct SD_bits56*)&SD_SDSTAT)->BIT10	// End command response, 1 = next command ready
	#define	SD_CD		((struct SD_bits56*)&SD_SDSTAT)->BIT11	// Card detect, 1= memory card inserted and detected
	#define	SD_FEMPTY	((struct SD_bits56*)&SD_SDSTAT)->BIT12	// Data FIFO empty, 1= transmit or receive FIFO empty
	#define	SD_FFULL	((struct SD_bits56*)&SD_SDSTAT)->BIT13	// Data FIFO full, 1= transmit or receive FIFO full
	
//t #define SD_SDCLKCON	*(volatile muint16*)(BUSPORT_BASE+0x04) 	// SD Clock Rate Register //
// bit 15~4 are unimplemented	
	#define	SD_CLKRATE	((struct SD_bits02*)&SD_SDCLKCON)->BIT02	// bit0~2, Clock rate for SD card clock,				(Write bit)
	#define	SD_SCLKEN	((struct SD_bits02*)&SD_SDCLKCON)->BIT3	// SD card clock enable, 1= SD card clock Enable
				// 000 Unimplemented
				// 001 1/2 module clock
				// 010 1/3 module clock
				// 011 1/4 module clock
				// 100 1/5 module clock
				// 101 1/6 module clock
				// 110 1/10 module clock
				// 111 400 KHz

//t #define SD_SDCMDATCON 	*(volatile muint16*)(BUSPORT_BASE+0x06)	// Command and Data Control Register 
// bit 15,14,13,12,11,8 are unimplemented
	#define	SD_RSPNO	((struct SD_bits01*)&SD_SDCMDATCON)->BIT01	// Response types, (Write bit) // for testing
	#define	SD_DATAEN	((struct SD_bits01*)&SD_SDCMDATCON)->BIT2	// Data transfer enable, 1= data transfer enabled
	#define	SD_WRD		((struct SD_bits01*)&SD_SDCMDATCON)->BIT3	// Data read or write operation, 1= write operation
	#define	SD_SBMOD	((struct SD_bits01*)&SD_SDCMDATCON)->BIT4	// Data transfer mode selection, 1= stream mode (MMC only)
	#define	SD_MBLK		((struct SD_bits01*)&SD_SDCMDATCON)->BIT5	// Multiple block mode, 1= multiple block mode
	#define	SD_BUSY		((struct SD_bits01*)&SD_SDCMDATCON)->BIT6	// Expected busy status, 1= busy status expected
	#define	SD_INIT		((struct SD_bits01*)&SD_SDCMDATCON)->BIT7	// Card initialization, 1 = SD clock init enable
	#define	SD_WBUS		((struct SD_bits01*)&SD_SDCMDATCON)->BIT9	// Wide bus selection, 1= 4-bits bus mode
	#define	SD_NOBEN	((struct SD_bits01*)&SD_SDCMDATCON)->BIT10	// NOB enable, 1= NOB Enable
				// 00 no response
				// 01 Format R1
				// 10 Format R2
				// 11 Format R3

//t #define SD_SDRTOUT 	*(volatile muint16*)(BUSPORT_BASE+0x08) 	// Response Timeout Register //
// bit 15~7 are unimplemented
	#define	SD_RSP_TO	((struct bits06*)&SD_SDRTOUT)->BIT06	// bit 0~6, Response timeout, 64~2, (Write bit) 
	
//t #define SD_SDRDTOUT 	*(volatile muint16*)(BUSPORT_BASE+0x0A)		// Read Timeout Register //
	#define	SD_RD_TO	SD_SDRDTOUT				// bit 0~15, Read timeout, 65536~2
	
//t #define SD_SDINTREN  	*(volatile muint16*)(BUSPORT_BASE+0x10)  // Interrupt Enable Register //
// bit 15~6 are unimplement
	#define	SD_TOIE		((struct SD_bits*)&SD_SDINTREN)->BIT0	// Timeout interrupt enable, 1= timeout interupt Enable
	#define	SD_CRCIE	((struct SD_bits*)&SD_SDINTREN)->BIT1	// CRC error interrupt enable, 1= CRC error interrupt Enable
	#define	SD_DTDNIE	((struct SD_bits*)&SD_SDINTREN)->BIT2	// Data transfer done interrupt enable, 1= data transfer done interrupt Enable
	#define	SD_WRDNIE	((struct SD_bits*)&SD_SDINTREN)->BIT3	// Write operation done interrupt enable, 1= write operation done interrupt Enable
	#define	SD_ECRIE	((struct SD_bits*)&SD_SDINTREN)->BIT4	// End command response interrupt enable, 1= end command response interrupt Enable
	#define	SD_CDIE		((struct SD_bits*)&SD_SDINTREN)->BIT5	// Auto card detect interrupt enable, 1= card detect interrupt Enable

//t #define SD_SDCMDNO  	*(volatile muint16*)(BUSPORT_BASE+0x12) 	 // Command Register //
// bit 15~6 are unimplemented
	#define	SD_CMDNO	((struct SD_bits05*)&SD_SDCMDNO)->BIT05	// bit0~5, Command number (Write bit)
     

struct PIM_bits8{
	unsigned BIT0:1;	
	unsigned BIT1:1;
	unsigned BIT2:1;
	unsigned BIT3:1;
	unsigned BIT4:1;
	unsigned BIT5:1;
	unsigned BIT6:1;
	unsigned BIT7:1;
} ;

	#define	PTM0_CMD	((struct PIM_bits8*)&PTM)->BIT0	// 
	#define	PTM1_CLK	((struct PIM_bits8*)&PTM)->BIT1	// 
	#define	PTM2		((struct PIM_bits8*)&PTM)->BIT2	// 
	#define	PTM3		((struct PIM_bits8*)&PTM)->BIT3	// 
	#define	PTM4		((struct PIM_bits8*)&PTM)->BIT4	// 
	#define	PTM5		((struct PIM_bits8*)&PTM)->BIT5	// 

// for SD speed optimization testing
//#define PTJ 	*(volatile muint8*)(PIMPORT_BASE+0x10)  	// port M i/o register
//#define DDRJ 	*(volatile muint8*)(PIMPORT_BASE+0x12)  	// port M data direction register
//#define RDRJ 	*(volatile muint8*)(PIMPORT_BASE+0x13)  	// port M reduced drive register

// end of SD additional codes
//----------------------------	


#endif	_H_SD_INCLUDES_		// end of my Constants & Macros definition
//
// The end of file sd_includes.h
// *********************************************************************************
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?? sd_includes.h

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