/*----------------------------------------------------------------------/\r
-/ Low level disk I/O module function checker\r
+/ Low level disk I/O module function checker /\r
/-----------------------------------------------------------------------/\r
/ WARNING: The data on the target drive will be lost!\r
*/\r
\r
#include <stdio.h>\r
#include <string.h>\r
-#include "ff.h"\r
-#include "diskio.h"\r
+#include "ff.h" /* Declarations of sector size */\r
+#include "diskio.h" /* Declarations of disk functions */\r
\r
\r
static\r
-DWORD pn (\r
- DWORD pns\r
+DWORD pn ( /* Pseudo random number generator */\r
+ DWORD pns /* 0:Initialize, !0:Read */\r
)\r
{\r
static DWORD lfsr;\r
)\r
{\r
UINT n, cc, ns;\r
- DWORD sz_drv, lba, lba2, pns = 1;\r
- WORD sz_sect, sz_eblk;\r
+ DWORD sz_drv, lba, lba2, sz_eblk, pns = 1;\r
+ WORD sz_sect;\r
BYTE *pbuff = (BYTE*)buff;\r
DSTATUS ds;\r
DRESULT dr;\r
printf("test_diskio(%u, %u, 0x%08X, 0x%08X)\n", pdrv, ncyc, (UINT)buff, sz_buff);\r
\r
if (sz_buff < _MAX_SS + 4) {\r
- printf("Insufficient work area to test.\n");\r
+ printf("Insufficient work area to run program.\n");\r
return 1;\r
}\r
\r
for (cc = 1; cc <= ncyc; cc++) {\r
printf("**** Test cycle %u of %u start ****\n", cc, ncyc);\r
\r
- /* Initialization */\r
printf(" disk_initalize(%u)", pdrv);\r
ds = disk_initialize(pdrv);\r
if (ds & STA_NOINIT) {\r
printf(" - ok.\n");\r
}\r
\r
- /* Get drive size */\r
printf("**** Get drive size ****\n");\r
printf(" disk_ioctl(%u, GET_SECTOR_COUNT, 0x%08X)", pdrv, (UINT)&sz_drv);\r
sz_drv = 0;\r
}\r
printf(" Number of sectors on the drive %u is %lu.\n", pdrv, sz_drv);\r
\r
-#if _MAX_SS != _MIN_SS\r
- /* Get sector size */\r
+#if FF_MAX_SS != FF_MIN_SS\r
printf("**** Get sector size ****\n");\r
printf(" disk_ioctl(%u, GET_SECTOR_SIZE, 0x%X)", pdrv, (UINT)&sz_sect);\r
sz_sect = 0;\r
}\r
printf(" Size of sector is %u bytes.\n", sz_sect);\r
#else\r
- sz_sect = _MAX_SS;\r
+ sz_sect = FF_MAX_SS;\r
#endif\r
\r
- /* Get erase block size */\r
printf("**** Get block size ****\n");\r
printf(" disk_ioctl(%u, GET_BLOCK_SIZE, 0x%X)", pdrv, (UINT)&sz_eblk);\r
sz_eblk = 0;\r
printf(" - failed.\n");\r
}\r
if (dr == RES_OK || sz_eblk >= 2) {\r
- printf(" Size of the erase block is %u sectors.\n", sz_eblk);\r
+ printf(" Size of the erase block is %lu sectors.\n", sz_eblk);\r
} else {\r
printf(" Size of the erase block is unknown.\n");\r
}\r
}\r
pns++;\r
\r
- /* Multiple sector write test */\r
printf("**** Multiple sector write test ****\n");\r
lba = 1; ns = sz_buff / sz_sect;\r
if (ns > 4) ns = 4;\r
}\r
pns++;\r
\r
- /* Single sector write test (misaligned memory address) */\r
- printf("**** Single sector write test 2 ****\n");\r
+ printf("**** Single sector write test (misaligned address) ****\n");\r
lba = 5;\r
for (n = 0, pn(pns); n < sz_sect; n++) pbuff[n+3] = (BYTE)pn(0);\r
printf(" disk_write(%u, 0x%X, %lu, 1)", pdrv, (UINT)(pbuff+3), lba);\r
}\r
pns++;\r
\r
- /* 4GB barrier test */\r
printf("**** 4GB barrier test ****\n");\r
if (sz_drv >= 128 + 0x80000000 / (sz_sect / 2)) {\r
lba = 6; lba2 = lba + 0x80000000 / (sz_sect / 2);\r
int main (int argc, char* argv[])\r
{\r
int rc;\r
- DWORD buff[512]; /* 2048 byte working buffer */\r
+ DWORD buff[FF_MAX_SS]; /* Working buffer (4 sector in size) */\r
\r
/* Check function/compatibility of the physical drive #0 */\r
rc = test_diskio(0, 3, buff, sizeof buff);\r
+\r
if (rc) {\r
- printf("Sorry the function/compatibility test failed. (rc=%d)\nFatFs will not work on this disk driver.\n", rc);\r
+ printf("Sorry the function/compatibility test failed. (rc=%d)\nFatFs will not work with this disk driver.\n", rc);\r
} else {\r
printf("Congratulations! The disk driver works well.\n");\r
}\r