2
* Copyright (C) 2010 - Maxim Levitsky
4
* mtd_probe is free software; you can redistribute it and/or modify
5
* it under the terms of the GNU General Public License as published by
6
* the Free Software Foundation; either version 2 of the License, or
7
* (at your option) any later version.
9
* mtd_probe is distributed in the hope that it will be useful,
10
* but WITHOUT ANY WARRANTY; without even the implied warranty of
11
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12
* GNU General Public License for more details.
14
* You should have received a copy of the GNU General Public License
15
* along with mtd_probe; if not, write to the Free Software
16
* Foundation, Inc., 51 Franklin St, Fifth Floor,
17
* Boston, MA 02110-1301 USA
22
#include <mtd/mtd-user.h>
24
#include <sys/types.h>
30
#include "mtd_probe.h"
32
static const uint8_t cis_signature[] = {
33
0x01, 0x03, 0xD9, 0x01, 0xFF, 0x18, 0x02, 0xDF, 0x01, 0x20
37
void probe_smart_media(int mtd_fd, mtd_info_t* info)
39
char* cis_buffer = malloc(SM_SECTOR_SIZE);
44
if (info->type != MTD_NANDFLASH)
47
int sector_size = info->writesize;
48
int block_size = info->erasesize;
49
int size_in_megs = info->size / (1024 * 1024);
53
if (sector_size != SM_SECTOR_SIZE && sector_size != SM_SMALL_PAGE)
56
switch(size_in_megs) {
73
for (offset = 0 ; offset < block_size * spare_count ;
74
offset += sector_size) {
76
lseek(mtd_fd, SEEK_SET, offset);
77
if (read(mtd_fd, cis_buffer, SM_SECTOR_SIZE) == SM_SECTOR_SIZE){
86
if (memcmp(cis_buffer, cis_signature, sizeof(cis_signature)) != 0 &&
87
(memcmp(cis_buffer + SM_SMALL_PAGE, cis_signature,
88
sizeof(cis_signature)) != 0))
91
printf("MTD_FTL=smartmedia\n");