void SD_INIT_FAT(void){
unsigned int f**k =0;
unsigned char fontshit[5];
unsigned char f****r =0;
SD_INIT();
errCode = f_mount(0, &filesystem);
Fat_FS_Error(errCode,"f_mount");
printf("\n Mounted File System: Type SD");
Write_Hello_World();
}
DSTATUS disk_initialize (
BYTE pdrv /* Physical drive nmuber to identify the drive */
)
{
DSTATUS stat = 0;
if(SD_INIT()){
return stat;
} // sd card 初始化
return STA_NOINIT;
}
/*----------------------------------------------------------------------------*/
int
diskio_detect_devices()
{
struct mbr mbr;
int dev_num = 0;
int i = 0, index = 0;
memset(devices, 0, DISKIO_MAX_DEVICES * sizeof (struct diskio_device_info));
#ifdef FLASH_INIT
if (FLASH_INIT() == 0) {
devices[index].type = DISKIO_DEVICE_TYPE_GENERIC_FLASH;
devices[index].number = dev_num;
/* This Flash has 4096 Pages */
devices[index].num_sectors = 4096;
/* A Page is 528 Bytes long, but for easier acces we use only 512 Byte*/
devices[index].sector_size = 512;
devices[index].first_sector = 0;
index += 1;
}
#endif
#ifdef SD_INIT
if (SD_INIT() == 0) {
devices[index].type = DISKIO_DEVICE_TYPE_SD_CARD;
devices[index].number = dev_num;
devices[index].num_sectors = microSD_get_block_num();
devices[index].sector_size = microSD_get_block_size();
devices[index].first_sector = 0;
if (devices[index].sector_size > DISKIO_MAX_SECTOR_SIZE) {
goto end_of_function;
}
mbr_init(&mbr);
mbr_read(&devices[index], &mbr);
index += 1;
for (i = 0; i < 4; ++i) {
if (mbr_hasPartition(&mbr, i + 1) != 0) {
devices[index].type = DISKIO_DEVICE_TYPE_SD_CARD | DISKIO_DEVICE_TYPE_PARTITION;
devices[index].number = dev_num;
devices[index].partition = i + 1;
devices[index].num_sectors = mbr.partition[i].lba_num_sectors;
devices[index].sector_size = devices[dev_num].sector_size;
devices[index].first_sector = mbr.partition[i].lba_first_sector;
index += 1;
}
}
dev_num += 1;
index += 1;
}
#endif
end_of_function:
if (index == 0) {
return DISKIO_FAILURE;
}
return DISKIO_SUCCESS;
}
/*----------------------------------------------------------------------------*/
int
diskio_detect_devices()
{
struct mbr mbr;
int dev_num = 0;
int i = 0, index = 0;
memset(devices, 0, DISKIO_MAX_DEVICES * sizeof (struct diskio_device_info));
/** @todo Place definitions at proper position */
#ifndef FLASH_ARCH_NUM_SECTORS
/* This Flash has 4096 Pages */
#define FLASH_ARCH_NUM_SECTORS 4096
#endif
#ifndef FLASH_ARCH_SECTOR_SIZE
/* A Page is 528 Bytes long, but for easier access we use only 512 Byte*/
#define FLASH_ARCH_SECTOR_SIZE 512
#endif
#ifdef FLASH_INIT
if (FLASH_INIT() == 0) {
devices[index].type = DISKIO_DEVICE_TYPE_GENERIC_FLASH;
devices[index].number = dev_num;
devices[index].num_sectors = FLASH_ARCH_NUM_SECTORS;
devices[index].sector_size = FLASH_ARCH_SECTOR_SIZE;
devices[index].first_sector = 0;
index += 1;
}
#endif /* FLASH_INIT */
#ifdef SD_INIT
if (SD_INIT() == 0) {
devices[index].type = DISKIO_DEVICE_TYPE_SD_CARD;
devices[index].number = dev_num;
devices[index].num_sectors = SD_GET_BLOCK_NUM();
devices[index].sector_size = SD_GET_BLOCK_SIZE();
devices[index].first_sector = 0;
if (devices[index].sector_size > DISKIO_MAX_SECTOR_SIZE) {
goto end_of_function;
}
mbr_init(&mbr);
mbr_read(&devices[index], &mbr);
index += 1;
// test for max 5 partitions
for (i = 0; i < 4; ++i) {
if (mbr_hasPartition(&mbr, i + 1) != 0) {
devices[index].type = DISKIO_DEVICE_TYPE_SD_CARD | DISKIO_DEVICE_TYPE_PARTITION;
devices[index].number = dev_num;
devices[index].partition = i + 1;
devices[index].num_sectors = mbr.partition[i].lba_num_sectors;
devices[index].sector_size = devices[dev_num].sector_size;
devices[index].first_sector = mbr.partition[i].lba_first_sector;
index += 1;
}
}
dev_num += 1;
index += 1;
}
#endif /* SD_INIT */
end_of_function:
if (index == 0) {
return DISKIO_FAILURE;
}
return DISKIO_SUCCESS;
}
/*----------------------------------------------------------------------------*/
static int
diskio_rw_op(struct diskio_device_info *dev, uint32_t block_start_address, uint32_t num_blocks, uint8_t *buffer, uint8_t op)
{
static uint32_t multi_block_nr = 0;
if (dev == NULL) {
if (default_device == 0) {
PRINTF("\nNo default device");
return DISKIO_ERROR_NO_DEVICE_SELECTED;
}
dev = default_device;
}
block_start_address += dev->first_sector;
uint8_t ret_code = 0;
uint8_t tries = 0, reinit = 0;
switch (dev->type & DISKIO_DEVICE_TYPE_MASK) {
#ifdef SD_INIT
case DISKIO_DEVICE_TYPE_SD_CARD:
switch (op) {
case DISKIO_OP_READ_BLOCK:
#ifndef DISKIO_OLD_STYLE
for (tries = 0; tries < DISKIO_RW_RETRIES; tries++) {
ret_code = SD_READ_BLOCK(block_start_address, buffer);
if (ret_code == 0) {
return DISKIO_SUCCESS;
} else {
//PRINTF("\nret_code: %u", ret_code);
}
#ifdef FAT_COOPERATIVE
if (!coop_step_allowed) {
next_step_type = READ;
coop_switch_sp();
} else {
coop_step_allowed = 0;
}
#else /* FAT_COOPERATIVE */
_delay_ms(DISKIO_RW_DELAY_MS);
#endif /* FAT_COOPERATIVE */
/* Try once to reinit sd card if access failed. */
if ((reinit == 0) && (tries == DISKIO_RW_RETRIES - 1)) {
PRINTF("\nReinit");
tries = 0;
reinit = 1;
SD_INIT();
}
}
PRINTF("\ndiskion_rw_op(): Unrecoverable Read Error!");
return DISKIO_ERROR_INTERNAL_ERROR;
#else /* !DISKIO_OLD_STYLE */
if (SD_READ_BLOCK(block_start_address, buffer) == 0) {
return DISKIO_SUCCESS;
}
return DISKIO_ERROR_TRY_AGAIN;
#endif /* !DISKIO_OLD_STYLE */
break;
case DISKIO_OP_READ_BLOCKS:
return DISKIO_ERROR_TO_BE_IMPLEMENTED;
break;
case DISKIO_OP_WRITE_BLOCK:
#ifndef DISKIO_OLD_STYLE
for (tries = 0; tries < DISKIO_RW_RETRIES; tries++) {
ret_code = SD_WRITE_BLOCK(block_start_address, buffer);
if (ret_code == 0) {
return DISKIO_SUCCESS;
}
#ifdef FAT_COOPERATIVE
if (!coop_step_allowed) {
next_step_type = WRITE;
coop_switch_sp();
} else {
coop_step_allowed = 0;
}
#else /* FAT_COOPERATIVE */
_delay_ms(DISKIO_RW_DELAY_MS);
#endif /* FAT_COOPERATIVE */
if ((reinit == 0) && (tries == DISKIO_RW_RETRIES - 1)) {
PRINTF("\nReinit");
tries = 0;
reinit = 1;
SD_INIT();
}
}
PRINTF("\ndiskion_rw_op(): Unrecoverable Write Error!");
return DISKIO_ERROR_INTERNAL_ERROR;
#else /* !DISKIO_OLD_STYLE */
if (SD_WRITE_BLOCK(block_start_address, buffer) == 0) {
return DISKIO_SUCCESS;
}
return DISKIO_ERROR_TRY_AGAIN;
#endif /* !DISKIO_OLD_STYLE */
break;
case DISKIO_OP_WRITE_BLOCKS_START:
ret_code = SD_WRITE_BLOCKS_START(block_start_address, num_blocks);
if (ret_code == 0) {
return DISKIO_SUCCESS;
} else {
return DISKIO_ERROR_INTERNAL_ERROR;
}
break;
case DISKIO_OP_WRITE_BLOCKS_NEXT:
ret_code = SD_WRITE_BLOCKS_NEXT(buffer);
if (ret_code == 0) {
return DISKIO_SUCCESS;
} else {
return DISKIO_ERROR_INTERNAL_ERROR;
}
break;
case DISKIO_OP_WRITE_BLOCKS_DONE:
ret_code = SD_WRITE_BLOCKS_DONE();
if (ret_code == 0) {
return DISKIO_SUCCESS;
} else {
return DISKIO_ERROR_INTERNAL_ERROR;
}
break;
default:
return DISKIO_ERROR_OPERATION_NOT_SUPPORTED;
break;
}
break;
#endif /* SD_INIT */
#ifdef FLASH_INIT
case DISKIO_DEVICE_TYPE_GENERIC_FLASH:
switch (op) {
case DISKIO_OP_READ_BLOCK:
FLASH_READ_BLOCK(block_start_address, 0, buffer, 512);
return DISKIO_SUCCESS;
break;
case DISKIO_OP_READ_BLOCKS:
return DISKIO_ERROR_TO_BE_IMPLEMENTED;
break;
case DISKIO_OP_WRITE_BLOCK:
FLASH_WRITE_BLOCK(block_start_address, 0, buffer, 512);
return DISKIO_SUCCESS;
break;
// fake multi block write
case DISKIO_OP_WRITE_BLOCKS_START:
if (multi_block_nr != 0) {
return DISKIO_ERROR_INTERNAL_ERROR;
}
multi_block_nr = block_start_address;
return DISKIO_SUCCESS;
break;
case DISKIO_OP_WRITE_BLOCKS_NEXT:
FLASH_WRITE_BLOCK(multi_block_nr, 0, buffer, 512);
multi_block_nr++;
return DISKIO_SUCCESS;
case DISKIO_OP_WRITE_BLOCKS_DONE:
multi_block_nr = 0;
return DISKIO_SUCCESS;
break;
default:
return DISKIO_ERROR_OPERATION_NOT_SUPPORTED;
break;
}
break;
#endif /* FLASH_INIT */
case DISKIO_DEVICE_TYPE_NOT_RECOGNIZED:
default:
return DISKIO_ERROR_NO_DEVICE_SELECTED;
}
return DISKIO_SUCCESS;
}