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/*----------------------------------------------------------------------/
/ Low level disk I/O module function checker
/-----------------------------------------------------------------------/
/ WARNING: The data on the target drive will be lost!
*/
#include <stdio.h>
#include <string.h>
#include "ff.h"
#include "diskio.h"
static
DWORD pn (
DWORD pns
)
{
static DWORD lfsr;
UINT n;
if (pns) {
lfsr = pns;
for (n = 0; n < 32; n++) pn(0);
}
if (lfsr & 1) {
lfsr >>= 1;
lfsr ^= 0x80200003;
} else {
lfsr >>= 1;
}
return lfsr;
}
int test_diskio (
BYTE pdrv, /* Physical drive number to be checked (all data on the drive will be lost) */
UINT ncyc, /* Number of test cycles */
DWORD* buff, /* Pointer to the working buffer */
UINT sz_buff /* Size of the working buffer in unit of byte */
)
{
UINT n, cc, ns;
DWORD sz_drv, lba, lba2, pns = 1;
WORD sz_sect, sz_eblk;
BYTE *pbuff = (BYTE*)buff;
DSTATUS ds;
DRESULT dr;
printf("test_diskio(%u, %u, 0x%08X, 0x%08X)\n", pdrv, ncyc, (UINT)buff, sz_buff);
if (sz_buff < _MAX_SS + 4) {
printf("Insufficient work area to test.\n");
return 1;
}
for (cc = 1; cc <= ncyc; cc++) {
printf("**** Test cycle %u of %u start ****\n", cc, ncyc);
/* Initialization */
printf(" disk_initalize(%u)", pdrv);
ds = disk_initialize(pdrv);
if (ds & STA_NOINIT) {
printf(" - failed.\n");
return 2;
} else {
printf(" - ok.\n");
}
/* Get drive size */
printf("**** Get drive size ****\n");
printf(" disk_ioctl(%u, GET_SECTOR_COUNT, 0x%08X)", pdrv, (UINT)&sz_drv);
sz_drv = 0;
dr = disk_ioctl(pdrv, GET_SECTOR_COUNT, &sz_drv);
if (dr == RES_OK) {
printf(" - ok.\n");
} else {
printf(" - failed.\n");
return 3;
}
if (sz_drv < 128) {
printf("Failed: Insufficient drive size to test.\n");
return 4;
}
printf(" Number of sectors on the drive %u is %lu.\n", pdrv, sz_drv);
#if _MAX_SS != _MIN_SS
/* Get sector size */
printf("**** Get sector size ****\n");
printf(" disk_ioctl(%u, GET_SECTOR_SIZE, 0x%X)", pdrv, (UINT)&sz_sect);
sz_sect = 0;
dr = disk_ioctl(pdrv, GET_SECTOR_SIZE, &sz_sect);
if (dr == RES_OK) {
printf(" - ok.\n");
} else {
printf(" - failed.\n");
return 5;
}
printf(" Size of sector is %u bytes.\n", sz_sect);
#else
sz_sect = _MAX_SS;
#endif
/* Get erase block size */
printf("**** Get block size ****\n");
printf(" disk_ioctl(%u, GET_BLOCK_SIZE, 0x%X)", pdrv, (UINT)&sz_eblk);
sz_eblk = 0;
dr = disk_ioctl(pdrv, GET_BLOCK_SIZE, &sz_eblk);
if (dr == RES_OK) {
printf(" - ok.\n");
} else {
printf(" - failed.\n");
}
if (dr == RES_OK || sz_eblk >= 2) {
printf(" Size of the erase block is %u sectors.\n", sz_eblk);
} else {
printf(" Size of the erase block is unknown.\n");
}
/* Single sector write test */
printf("**** Single sector write test 1 ****\n");
lba = 0;
for (n = 0, pn(pns); n < sz_sect; n++) pbuff[n] = (BYTE)pn(0);
printf(" disk_write(%u, 0x%X, %lu, 1)", pdrv, (UINT)pbuff, lba);
dr = disk_write(pdrv, pbuff, lba, 1);
if (dr == RES_OK) {
printf(" - ok.\n");
} else {
printf(" - failed.\n");
return 6;
}
printf(" disk_ioctl(%u, CTRL_SYNC, NULL)", pdrv);
dr = disk_ioctl(pdrv, CTRL_SYNC, 0);
if (dr == RES_OK) {
printf(" - ok.\n");
} else {
printf(" - failed.\n");
return 7;
}
memset(pbuff, 0, sz_sect);
printf(" disk_read(%u, 0x%X, %lu, 1)", pdrv, (UINT)pbuff, lba);
dr = disk_read(pdrv, pbuff, lba, 1);
if (dr == RES_OK) {
printf(" - ok.\n");
} else {
printf(" - failed.\n");
return 8;
}
for (n = 0, pn(pns); n < sz_sect && pbuff[n] == (BYTE)pn(0); n++) ;
if (n == sz_sect) {
printf(" Data matched.\n");
} else {
printf("Failed: Read data differs from the data written.\n");
return 10;
}
pns++;
/* Multiple sector write test */
printf("**** Multiple sector write test ****\n");
lba = 1; ns = sz_buff / sz_sect;
if (ns > 4) ns = 4;
for (n = 0, pn(pns); n < (UINT)(sz_sect * ns); n++) pbuff[n] = (BYTE)pn(0);
printf(" disk_write(%u, 0x%X, %lu, %u)", pdrv, (UINT)pbuff, lba, ns);
dr = disk_write(pdrv, pbuff, lba, ns);
if (dr == RES_OK) {
printf(" - ok.\n");
} else {
printf(" - failed.\n");
return 11;
}
printf(" disk_ioctl(%u, CTRL_SYNC, NULL)", pdrv);
dr = disk_ioctl(pdrv, CTRL_SYNC, 0);
if (dr == RES_OK) {
printf(" - ok.\n");
} else {
printf(" - failed.\n");
return 12;
}
memset(pbuff, 0, sz_sect * ns);
printf(" disk_read(%u, 0x%X, %lu, %u)", pdrv, (UINT)pbuff, lba, ns);
dr = disk_read(pdrv, pbuff, lba, ns);
if (dr == RES_OK) {
printf(" - ok.\n");
} else {
printf(" - failed.\n");
return 13;
}
for (n = 0, pn(pns); n < (UINT)(sz_sect * ns) && pbuff[n] == (BYTE)pn(0); n++) ;
if (n == (UINT)(sz_sect * ns)) {
printf(" Data matched.\n");
} else {
printf("Failed: Read data differs from the data written.\n");
return 14;
}
pns++;
/* Single sector write test (misaligned memory address) */
printf("**** Single sector write test 2 ****\n");
lba = 5;
for (n = 0, pn(pns); n < sz_sect; n++) pbuff[n+3] = (BYTE)pn(0);
printf(" disk_write(%u, 0x%X, %lu, 1)", pdrv, (UINT)(pbuff+3), lba);
dr = disk_write(pdrv, pbuff+3, lba, 1);
if (dr == RES_OK) {
printf(" - ok.\n");
} else {
printf(" - failed.\n");
return 15;
}
printf(" disk_ioctl(%u, CTRL_SYNC, NULL)", pdrv);
dr = disk_ioctl(pdrv, CTRL_SYNC, 0);
if (dr == RES_OK) {
printf(" - ok.\n");
} else {
printf(" - failed.\n");
return 16;
}
memset(pbuff+5, 0, sz_sect);
printf(" disk_read(%u, 0x%X, %lu, 1)", pdrv, (UINT)(pbuff+5), lba);
dr = disk_read(pdrv, pbuff+5, lba, 1);
if (dr == RES_OK) {
printf(" - ok.\n");
} else {
printf(" - failed.\n");
return 17;
}
for (n = 0, pn(pns); n < sz_sect && pbuff[n+5] == (BYTE)pn(0); n++) ;
if (n == sz_sect) {
printf(" Data matched.\n");
} else {
printf("Failed: Read data differs from the data written.\n");
return 18;
}
pns++;
/* 4GB barrier test */
printf("**** 4GB barrier test ****\n");
if (sz_drv >= 128 + 0x80000000 / (sz_sect / 2)) {
lba = 6; lba2 = lba + 0x80000000 / (sz_sect / 2);
for (n = 0, pn(pns); n < (UINT)(sz_sect * 2); n++) pbuff[n] = (BYTE)pn(0);
printf(" disk_write(%u, 0x%X, %lu, 1)", pdrv, (UINT)pbuff, lba);
dr = disk_write(pdrv, pbuff, lba, 1);
if (dr == RES_OK) {
printf(" - ok.\n");
} else {
printf(" - failed.\n");
return 19;
}
printf(" disk_write(%u, 0x%X, %lu, 1)", pdrv, (UINT)(pbuff+sz_sect), lba2);
dr = disk_write(pdrv, pbuff+sz_sect, lba2, 1);
if (dr == RES_OK) {
printf(" - ok.\n");
} else {
printf(" - failed.\n");
return 20;
}
printf(" disk_ioctl(%u, CTRL_SYNC, NULL)", pdrv);
dr = disk_ioctl(pdrv, CTRL_SYNC, 0);
if (dr == RES_OK) {
printf(" - ok.\n");
} else {
printf(" - failed.\n");
return 21;
}
memset(pbuff, 0, sz_sect * 2);
printf(" disk_read(%u, 0x%X, %lu, 1)", pdrv, (UINT)pbuff, lba);
dr = disk_read(pdrv, pbuff, lba, 1);
if (dr == RES_OK) {
printf(" - ok.\n");
} else {
printf(" - failed.\n");
return 22;
}
printf(" disk_read(%u, 0x%X, %lu, 1)", pdrv, (UINT)(pbuff+sz_sect), lba2);
dr = disk_read(pdrv, pbuff+sz_sect, lba2, 1);
if (dr == RES_OK) {
printf(" - ok.\n");
} else {
printf(" - failed.\n");
return 23;
}
for (n = 0, pn(pns); pbuff[n] == (BYTE)pn(0) && n < (UINT)(sz_sect * 2); n++) ;
if (n == (UINT)(sz_sect * 2)) {
printf(" Data matched.\n");
} else {
printf("Failed: Read data differs from the data written.\n");
return 24;
}
} else {
printf(" Test skipped.\n");
}
pns++;
printf("**** Test cycle %u of %u completed ****\n\n", cc, ncyc);
}
return 0;
}
int main (int argc, char* argv[])
{
int rc;
DWORD buff[512]; /* 2048 byte working buffer */
/* Check function/compatibility of the physical drive #0 */
rc = test_diskio(0, 1, buff, sizeof buff);
if (res) {
printf("Sorry the function/compatibility test failed.\nFatFs will not work on this disk driver.\n");
} else {
printf("Congratulations! The disk I/O layer works well.\n");
}
return rc;
}
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