mmc_sd.h

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/*******************************************************************/
/*          SD diriver for  MP3 Player                             */
/*                                                                 */
/* Platform   : AVRStudio4.13 b528 + WinAVR20070525                */
/*              optimize -0s                                       */
/* Author     : bozai(Zhang Qibo)                                  */
/* E-mail     : [e-mail]                                    */
/* MSN        : [e-mail]                         */
/* Date       : 2006-06-16                                         */
/*******************************************************************/
/*  20080928: modify codes for ARM platform (NXP LPC2132)  */
/*  20071212: modify code for mcuzone's mp3 player */
/*  20071208: modify codes for ARM platform (AT91SAM7S256)  */
/*  2007-10-21: Rewrite some function, now only suply 4 functions  */
/*  2007-10-18: Adjust some time & retry count for compatibility   */
/*              consideration                                      */
/*  2007-06-16: After reading the spec. in detail, I found some    */
/*              of the code don't meet the spec., that is after    */
/*              the last SPI transaction, it need an extra 8 CLK   */
/*              to finish it's work                                */
/*  2007-05-04: add read capacity function                         */
/*  2007-04-21:                                                    */
/*  Enable some code incase that when SD reset                     */
/*  faild program can't jump the loop                              */
/*******************************************************************/

#ifndef __MMC_SD_h__
#define __MMC_SD_h__

#include "global.h"
//#include "board.h"
#define PSTR 
#define _delay_ms soft_delay_ms

#define uint8  unsigned char
#define  int8    signed char
#define uint16 unsigned short
#define  int16   signed short
#define uint32 unsigned int
#define  int32   signed int

#if 0
#define MMC_SD_CS		(1<<31)
#define MMC_SD_SCK		(1<<14)
#define MMC_SD_MOSI	(1<<13)
#define MMC_SD_MISO	(1<<12)

/****************************************************************/
/*
#define MMC_SD_PORT_INI  {\
		pPIO->PIO_SODR = MMC_SD_CS|MMC_SD_SCK|MMC_SD_MOSI|MMC_SD_MISO;\
		pPIO->PIO_PER = MMC_SD_CS|MMC_SD_SCK|MMC_SD_MOSI|MMC_SD_MISO;	\
		pPIO->PIO_OER = MMC_SD_CS|MMC_SD_SCK|MMC_SD_MOSI|MMC_SD_MISO;	\
	}							
*/
#define MMC_SD_PORT_INI  {\
		pPIO->PIO_SODR = MMC_SD_CS;\
		pPIO->PIO_PER = MMC_SD_CS;	\
		pPIO->PIO_OER = MMC_SD_CS;	\
	}

#define SPI_CS_Assert   pPIO->PIO_CODR = MMC_SD_CS 
#define SPI_CS_Deassert pPIO->PIO_SODR = MMC_SD_CS
#endif

//cs	 p0.21
#define  SPI1_CS      			(0x01 << 21)              	 	
#define  SPI1_CS_GPIO()			PINSEL1 &= ~(0x03 << 10)	 		
#define  SPI1_CS_OUT()			IO0DIR |= SPI1_CS			 
#define	 SPI_CS_Deassert		IO0SET |= SPI1_CS			
#define	 SPI_CS_Assert 			IO0CLR |= SPI1_CS				


uint8 MMC_SD_Init(void);
uint8 MMC_SD_ReadSingleBlock(uint32 sector, uint8* buffer);
uint8 MMC_SD_WriteSingleBlock(uint32 sector, uint8* buffer);
uint32 MMC_SD_ReadCapacity(void);

#endif