flashdev.h

完整的Bell实验室的嵌入式文件系统TFS

/* flash.h:
   This header file supports the ability to use one source file to build
   flash operations for 8, 16 and 32 bit width flash banks.
*/
#include "config.h"

#define FLASH_LOCK_SUPPORTED    0
#define FLASH_TIMEOUT           1000000
#define FLASHFUNCSIZE           400

/* Manufacturer and device ids... */
#define AMD29DL640D     0x017e

#define WIDTH   1
#define ftype               volatile unsigned char
#define Write_aa_to_aaa()  (*(ftype *)(fdev->base+0xaaa) = 0xaa)
#define Write_55_to_555()  (*(ftype *)(fdev->base+0x555) = 0x55)
#define Write_80_to_aaa()  (*(ftype *)(fdev->base+0xaaa) = 0x80)
#define Write_a0_to_aaa()  (*(ftype *)(fdev->base+0xaaa) = 0xa0)
#define Write_90_to_aaa()  (*(ftype *)(fdev->base+0xaaa) = 0x90)
#define Write_f0_to_base()  (*(ftype *)(fdev->base) = 0xf0)
#define Write_30_to_(add)   (*(ftype *)add = 0x30)
#define Read_0000()         (*(ftype *)(fdev->base))
#define Read_0001()         (*(ftype *)(fdev->base+1))
#define Read_0002()         (*(ftype *)(fdev->base+2))
#define Read_555()          (*(ftype *)(fdev->base+0x555))
#define Is_ff(add)          (*(ftype *)add == 0xff)
#define Is_not_ff(add)      (*(ftype *)add != 0xff)
#define D5_Timeout(add)     ((*(ftype *)add & 0xdf) == 0x20)

#define Fwrite(to,frm)      (*(ftype *)to = *(ftype *)frm)
#define Is_Equal(p1,p2)     (*(ftype *)p1 == *(ftype *)p2)
#define Is_Not_Equal(p1,p2) (*(ftype *)p1 != *(ftype *)p2)