/*
 * ####################################################################################### Connect ARM to MMC/SD
 * 
 * Copyright (C) 2004 Ulrich Radig #######################################################################################
 */


#ifndef _MMC_H
#define _MMC_H


#define SPI_Mode			0       // 1 = Hardware SPI | 0 = Software SPI

#define MMC_WRITE PORTB
#define MMC_READ PINB
#define MMC_REG DDRB

#define MMC_CS PB4
#define MMC_DO PB6
#define MMC_DI PB5
#define MMC_CLK PB7

#define MMC_WRITE  		PORTB   // Port an der die MMC/SD-Karte angeschlossen ist also des SPI
#define MMC_READ 			PINB
#define MMC_REG	DDRB




extern unsigned char mmc_read_byte(void);
extern void mmc_write_byte(unsigned char);
extern void mmc_read_block(unsigned char *, unsigned char *, unsigned in);
extern unsigned char mmc_init(void);
extern unsigned char mmc_read_sector(unsigned long, unsigned char *);
extern unsigned char mmc_write_sector(unsigned long, unsigned char *);
extern unsigned char mmc_write_command(unsigned char *);

#define mmc_disable() MMC_WRITE|= (1<<MMC_CS);

#define mmc_enable() MMC_WRITE&=~(1<<MMC_CS);

#define nop()  __asm__ __volatile__ ("nop" ::)

#endif