diff options
Diffstat (limited to 'src/extras/mtd_probe')
| -rw-r--r-- | src/extras/mtd_probe/mtd_probe.c | 34 | ||||
| -rw-r--r-- | src/extras/mtd_probe/mtd_probe.h | 24 | ||||
| -rw-r--r-- | src/extras/mtd_probe/probe_smartmedia.c | 90 |
3 files changed, 74 insertions, 74 deletions
diff --git a/src/extras/mtd_probe/mtd_probe.c b/src/extras/mtd_probe/mtd_probe.c index e45867ffa9..1aa08d3851 100644 --- a/src/extras/mtd_probe/mtd_probe.c +++ b/src/extras/mtd_probe/mtd_probe.c @@ -28,24 +28,24 @@ int main(int argc, char** argv) { - if (argc != 2) { - printf("usage: mtd_probe /dev/mtd[n]\n"); - return 1; - } + if (argc != 2) { + printf("usage: mtd_probe /dev/mtd[n]\n"); + return 1; + } - int mtd_fd = open(argv[1], O_RDONLY); - if (mtd_fd == -1) { - perror("open"); - exit(-1); - } + int mtd_fd = open(argv[1], O_RDONLY); + if (mtd_fd == -1) { + perror("open"); + exit(-1); + } - mtd_info_t mtd_info; - int error = ioctl(mtd_fd, MEMGETINFO, &mtd_info); - if (error == -1) { - perror("ioctl"); - exit(-1); - } + mtd_info_t mtd_info; + int error = ioctl(mtd_fd, MEMGETINFO, &mtd_info); + if (error == -1) { + perror("ioctl"); + exit(-1); + } - probe_smart_media(mtd_fd, &mtd_info); - return -1; + probe_smart_media(mtd_fd, &mtd_info); + return -1; } diff --git a/src/extras/mtd_probe/mtd_probe.h b/src/extras/mtd_probe/mtd_probe.h index 20ecd4578e..2a37ede578 100644 --- a/src/extras/mtd_probe/mtd_probe.h +++ b/src/extras/mtd_probe/mtd_probe.h @@ -21,29 +21,29 @@ /* Full oob structure as written on the flash */ struct sm_oob { - uint32_t reserved; - uint8_t data_status; - uint8_t block_status; - uint8_t lba_copy1[2]; - uint8_t ecc2[3]; - uint8_t lba_copy2[2]; - uint8_t ecc1[3]; + uint32_t reserved; + uint8_t data_status; + uint8_t block_status; + uint8_t lba_copy1[2]; + uint8_t ecc2[3]; + uint8_t lba_copy2[2]; + uint8_t ecc1[3]; } __attribute__((packed)); /* one sector is always 512 bytes, but it can consist of two nand pages */ -#define SM_SECTOR_SIZE 512 +#define SM_SECTOR_SIZE 512 /* oob area is also 16 bytes, but might be from two pages */ -#define SM_OOB_SIZE 16 +#define SM_OOB_SIZE 16 /* This is maximum zone size, and all devices that have more that one zone have this size */ -#define SM_MAX_ZONE_SIZE 1024 +#define SM_MAX_ZONE_SIZE 1024 /* support for small page nand */ -#define SM_SMALL_PAGE 256 -#define SM_SMALL_OOB_SIZE 8 +#define SM_SMALL_PAGE 256 +#define SM_SMALL_OOB_SIZE 8 void probe_smart_media(int mtd_fd, mtd_info_t *info); diff --git a/src/extras/mtd_probe/probe_smartmedia.c b/src/extras/mtd_probe/probe_smartmedia.c index 49704e380a..b3cdefc633 100644 --- a/src/extras/mtd_probe/probe_smartmedia.c +++ b/src/extras/mtd_probe/probe_smartmedia.c @@ -30,68 +30,68 @@ #include "mtd_probe.h" static const uint8_t cis_signature[] = { - 0x01, 0x03, 0xD9, 0x01, 0xFF, 0x18, 0x02, 0xDF, 0x01, 0x20 + 0x01, 0x03, 0xD9, 0x01, 0xFF, 0x18, 0x02, 0xDF, 0x01, 0x20 }; void probe_smart_media(int mtd_fd, mtd_info_t* info) { - char* cis_buffer = malloc(SM_SECTOR_SIZE); + char* cis_buffer = malloc(SM_SECTOR_SIZE); - if (!cis_buffer) - return; + if (!cis_buffer) + return; - if (info->type != MTD_NANDFLASH) - goto exit; + if (info->type != MTD_NANDFLASH) + goto exit; - int sector_size = info->writesize; - int block_size = info->erasesize; - int size_in_megs = info->size / (1024 * 1024); - int spare_count; + int sector_size = info->writesize; + int block_size = info->erasesize; + int size_in_megs = info->size / (1024 * 1024); + int spare_count; - if (sector_size != SM_SECTOR_SIZE && sector_size != SM_SMALL_PAGE) - goto exit; + if (sector_size != SM_SECTOR_SIZE && sector_size != SM_SMALL_PAGE) + goto exit; - switch(size_in_megs) { - case 1: - case 2: - spare_count = 6; - break; - case 4: - spare_count = 12; - break; - default: - spare_count = 24; - break; - } + switch(size_in_megs) { + case 1: + case 2: + spare_count = 6; + break; + case 4: + spare_count = 12; + break; + default: + spare_count = 24; + break; + } - int offset; - int cis_found = 0; + int offset; + int cis_found = 0; - for (offset = 0 ; offset < block_size * spare_count ; - offset += sector_size) { + for (offset = 0 ; offset < block_size * spare_count ; + offset += sector_size) { - lseek(mtd_fd, SEEK_SET, offset); - if (read(mtd_fd, cis_buffer, SM_SECTOR_SIZE) == SM_SECTOR_SIZE){ - cis_found = 1; - break; - } - } + lseek(mtd_fd, SEEK_SET, offset); + if (read(mtd_fd, cis_buffer, SM_SECTOR_SIZE) == SM_SECTOR_SIZE){ + cis_found = 1; + break; + } + } - if (!cis_found) - goto exit; + if (!cis_found) + goto exit; - if (memcmp(cis_buffer, cis_signature, sizeof(cis_signature)) != 0 && - (memcmp(cis_buffer + SM_SMALL_PAGE, cis_signature, - sizeof(cis_signature)) != 0)) - goto exit; + if (memcmp(cis_buffer, cis_signature, sizeof(cis_signature)) != 0 && + (memcmp(cis_buffer + SM_SMALL_PAGE, cis_signature, + sizeof(cis_signature)) != 0)) + goto exit; - printf("MTD_FTL=smartmedia\n"); - free(cis_buffer); - exit(0); + printf("MTD_FTL=smartmedia\n"); + free(cis_buffer); + exit(0); exit: - free(cis_buffer); - return; + free(cis_buffer); + return; } |