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/* $Id: flash.h,v 1.1 2005-12-20 11:32:23 jcastillo Exp $ */

#ifndef __LINUX_FLASH_H

#define __LINUX_FLASH_H

#include <asm/types.h>

/* the ioctl's supported */

#define FLASHIO_ERASEALL 0x1      /* erase the entire device, blocks until completion */

#ifdef __KERNEL__

extern void flash_safe_acquire(void *part);

extern void flash_safe_release(void *part);

extern int flash_safe_read(void *part, unsigned char *fptr,

                           unsigned char *buf, int count);

extern int flash_safe_write(void *part, unsigned char *fptr,

                            const unsigned char *buf, int count);

extern void *flash_getpart(kdev_t dev);

extern unsigned char *flash_get_direct_pointer(kdev_t dev, __u32 offset);

extern int flash_erase_region(kdev_t dev, __u32 offset, __u32 size);

extern long flash_erasable_size(void *_part, __u32 offset, __u32 size);

extern int flash_memset(unsigned char *ptr, const __u8 c, unsigned long size);

#endif

/* the following are on-flash structures */

#define FLASH_BOOT_MAGIC 0xbeefcace

struct bootblock {

        __u32 magic;

        __u32 hwid;

        unsigned char sernbr[8]; /* uses only 0-5, but is 8 big for alignment */

        char brandname[32];

        __u32 ptable_offset;       /* offset into bootblock where the partitiontable is */

        /* ... */

};

/* the partitiontable consists of structs like these, after each other */

struct partitiontable {

        __u32 offset;

        __u32 size;

        __u32 flags;

};

#endif /* __LINUX_FLASH_H */