cf.h

基于ARM9200的CF卡驱动程序

/* CF CARD interface for Linux on Atmel AT91RM9200
 * Copyright (c) 2006 Ligang Wang
 * [e-mail]
 */
#ifndef _CF_H_
#define _CF_H_

/* define some macro for this module*/

#define MAX_DEV_NUM 	5			//Max number of 8255 device
#define DEV_MEM_SIZE 	1024		//define memory size for device
#define DEV_MAJOR		251   		//major of 8255a

#define CF_ADDR_ATTR_BASE 	0x50000000
#define CF_ADDR_IO_BASE 	0x50800000
#define CF_ADDR_MEM_BASE 	0x50400000

#define CF_IOREMAP_SIZE		0x1024


#define AT91C_CF_PC5_CD1 AT91C_PIO_PC5  /* Compact Flash port pin aliases */
#define AT91C_CF_PC5_CD2 AT91C_PIO_PC5
#define AT91C_CF_PB20_IOIS16 AT91C_PIO_PB20 /* The access type (8 [high] or 16-bit [low])
                                      is based on the state of the -IOIS16 signal */
                                      //WP?
#define AT91C_CF_PB18_STSCHG AT91C_PIO_PB18
#define AT91C_CF_PB21_RDY AT91C_PIO_PB21
#define AT91C_CF_PB5_RESET AT91C_PIO_PB5
#define AT91C_CF_PB6_ENABLE AT91C_PIO_PB6

#define CF_STATUS (*((char *)(card_info.cf_addr_io_base + 7)))

typedef struct _cf_information
{
	void * cf_addr_attrib_base;
	void * cf_addr_io_base;
	void * cf_addr_mem_base;
	
	int is_insert;
	int is_ready;
	char * cahce1;
	char * cache2;
} cf_information;
#endif