530 lines
14 KiB
C
530 lines
14 KiB
C
|
/*
|
||
|
|
* Copyright (c) 2006-2018, RT-Thread Development Team
|
||
|
|
*
|
||
|
|
* SPDX-License-Identifier: Apache-2.0
|
||
|
|
*
|
||
|
|
* Change Logs:
|
||
|
|
* Date Author Notes
|
||
|
|
* 2011-07-25 weety first version
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <rtthread.h>
|
||
|
|
#include <dfs_fs.h>
|
||
|
|
|
||
|
|
#include <drivers/mmcsd_core.h>
|
||
|
|
|
||
|
|
#define DBG_TAG "SDIO"
|
||
|
|
#ifdef RT_SDIO_DEBUG
|
||
|
|
#define DBG_LVL DBG_LOG
|
||
|
|
#else
|
||
|
|
#define DBG_LVL DBG_INFO
|
||
|
|
#endif /* RT_SDIO_DEBUG */
|
||
|
|
#include <rtdbg.h>
|
||
|
|
|
||
|
|
static rt_list_t blk_devices = RT_LIST_OBJECT_INIT(blk_devices);
|
||
|
|
|
||
|
|
#define BLK_MIN(a, b) ((a) < (b) ? (a) : (b))
|
||
|
|
|
||
|
|
struct mmcsd_blk_device
|
||
|
|
{
|
||
|
|
struct rt_mmcsd_card *card;
|
||
|
|
rt_list_t list;
|
||
|
|
struct rt_device dev;
|
||
|
|
struct dfs_partition part;
|
||
|
|
struct rt_device_blk_geometry geometry;
|
||
|
|
rt_size_t max_req_size;
|
||
|
|
};
|
||
|
|
|
||
|
|
#ifndef RT_MMCSD_MAX_PARTITION
|
||
|
|
#define RT_MMCSD_MAX_PARTITION 16
|
||
|
|
#endif
|
||
|
|
|
||
|
|
rt_int32_t mmcsd_num_wr_blocks(struct rt_mmcsd_card *card)
|
||
|
|
{
|
||
|
|
rt_int32_t err;
|
||
|
|
rt_uint32_t blocks;
|
||
|
|
|
||
|
|
struct rt_mmcsd_req req;
|
||
|
|
struct rt_mmcsd_cmd cmd;
|
||
|
|
struct rt_mmcsd_data data;
|
||
|
|
rt_uint32_t timeout_us;
|
||
|
|
|
||
|
|
rt_memset(&cmd, 0, sizeof(struct rt_mmcsd_cmd));
|
||
|
|
|
||
|
|
cmd.cmd_code = APP_CMD;
|
||
|
|
cmd.arg = card->rca << 16;
|
||
|
|
cmd.flags = RESP_SPI_R1 | RESP_R1 | CMD_AC;
|
||
|
|
|
||
|
|
err = mmcsd_send_cmd(card->host, &cmd, 0);
|
||
|
|
if (err)
|
||
|
|
return -RT_ERROR;
|
||
|
|
if (!controller_is_spi(card->host) && !(cmd.resp[0] & R1_APP_CMD))
|
||
|
|
return -RT_ERROR;
|
||
|
|
|
||
|
|
rt_memset(&cmd, 0, sizeof(struct rt_mmcsd_cmd));
|
||
|
|
|
||
|
|
cmd.cmd_code = SD_APP_SEND_NUM_WR_BLKS;
|
||
|
|
cmd.arg = 0;
|
||
|
|
cmd.flags = RESP_SPI_R1 | RESP_R1 | CMD_ADTC;
|
||
|
|
|
||
|
|
rt_memset(&data, 0, sizeof(struct rt_mmcsd_data));
|
||
|
|
|
||
|
|
data.timeout_ns = card->tacc_ns * 100;
|
||
|
|
data.timeout_clks = card->tacc_clks * 100;
|
||
|
|
|
||
|
|
timeout_us = data.timeout_ns / 1000;
|
||
|
|
timeout_us += data.timeout_clks * 1000 /
|
||
|
|
(card->host->io_cfg.clock / 1000);
|
||
|
|
|
||
|
|
if (timeout_us > 100000)
|
||
|
|
{
|
||
|
|
data.timeout_ns = 100000000;
|
||
|
|
data.timeout_clks = 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
data.blksize = 4;
|
||
|
|
data.blks = 1;
|
||
|
|
data.flags = DATA_DIR_READ;
|
||
|
|
data.buf = &blocks;
|
||
|
|
|
||
|
|
rt_memset(&req, 0, sizeof(struct rt_mmcsd_req));
|
||
|
|
|
||
|
|
req.cmd = &cmd;
|
||
|
|
req.data = &data;
|
||
|
|
|
||
|
|
mmcsd_send_request(card->host, &req);
|
||
|
|
|
||
|
|
if (cmd.err || data.err)
|
||
|
|
return -RT_ERROR;
|
||
|
|
|
||
|
|
return blocks;
|
||
|
|
}
|
||
|
|
|
||
|
|
static rt_err_t rt_mmcsd_req_blk(struct rt_mmcsd_card *card,
|
||
|
|
rt_uint32_t sector,
|
||
|
|
void *buf,
|
||
|
|
rt_size_t blks,
|
||
|
|
rt_uint8_t dir)
|
||
|
|
{
|
||
|
|
struct rt_mmcsd_cmd cmd, stop;
|
||
|
|
struct rt_mmcsd_data data;
|
||
|
|
struct rt_mmcsd_req req;
|
||
|
|
struct rt_mmcsd_host *host = card->host;
|
||
|
|
rt_uint32_t r_cmd, w_cmd;
|
||
|
|
|
||
|
|
mmcsd_host_lock(host);
|
||
|
|
rt_memset(&req, 0, sizeof(struct rt_mmcsd_req));
|
||
|
|
rt_memset(&cmd, 0, sizeof(struct rt_mmcsd_cmd));
|
||
|
|
rt_memset(&stop, 0, sizeof(struct rt_mmcsd_cmd));
|
||
|
|
rt_memset(&data, 0, sizeof(struct rt_mmcsd_data));
|
||
|
|
req.cmd = &cmd;
|
||
|
|
req.data = &data;
|
||
|
|
|
||
|
|
cmd.arg = sector;
|
||
|
|
if (!(card->flags & CARD_FLAG_SDHC))
|
||
|
|
{
|
||
|
|
cmd.arg <<= 9;
|
||
|
|
}
|
||
|
|
cmd.flags = RESP_SPI_R1 | RESP_R1 | CMD_ADTC;
|
||
|
|
|
||
|
|
data.blksize = SECTOR_SIZE;
|
||
|
|
data.blks = blks;
|
||
|
|
|
||
|
|
if (blks > 1)
|
||
|
|
{
|
||
|
|
if (!controller_is_spi(card->host) || !dir)
|
||
|
|
{
|
||
|
|
req.stop = &stop;
|
||
|
|
stop.cmd_code = STOP_TRANSMISSION;
|
||
|
|
stop.arg = 0;
|
||
|
|
stop.flags = RESP_SPI_R1B | RESP_R1B | CMD_AC;
|
||
|
|
}
|
||
|
|
r_cmd = READ_MULTIPLE_BLOCK;
|
||
|
|
w_cmd = WRITE_MULTIPLE_BLOCK;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
req.stop = RT_NULL;
|
||
|
|
r_cmd = READ_SINGLE_BLOCK;
|
||
|
|
w_cmd = WRITE_BLOCK;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!dir)
|
||
|
|
{
|
||
|
|
cmd.cmd_code = r_cmd;
|
||
|
|
data.flags |= DATA_DIR_READ;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
cmd.cmd_code = w_cmd;
|
||
|
|
data.flags |= DATA_DIR_WRITE;
|
||
|
|
}
|
||
|
|
|
||
|
|
mmcsd_set_data_timeout(&data, card);
|
||
|
|
data.buf = buf;
|
||
|
|
mmcsd_send_request(host, &req);
|
||
|
|
|
||
|
|
if (!controller_is_spi(card->host) && dir != 0)
|
||
|
|
{
|
||
|
|
do
|
||
|
|
{
|
||
|
|
rt_int32_t err;
|
||
|
|
|
||
|
|
cmd.cmd_code = SEND_STATUS;
|
||
|
|
cmd.arg = card->rca << 16;
|
||
|
|
cmd.flags = RESP_R1 | CMD_AC;
|
||
|
|
err = mmcsd_send_cmd(card->host, &cmd, 5);
|
||
|
|
if (err)
|
||
|
|
{
|
||
|
|
LOG_E("error %d requesting status", err);
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
/*
|
||
|
|
* Some cards mishandle the status bits,
|
||
|
|
* so make sure to check both the busy
|
||
|
|
* indication and the card state.
|
||
|
|
*/
|
||
|
|
} while (!(cmd.resp[0] & R1_READY_FOR_DATA) ||
|
||
|
|
(R1_CURRENT_STATE(cmd.resp[0]) == 7));
|
||
|
|
}
|
||
|
|
|
||
|
|
mmcsd_host_unlock(host);
|
||
|
|
|
||
|
|
if (cmd.err || data.err || stop.err)
|
||
|
|
{
|
||
|
|
LOG_E("mmcsd request blocks error");
|
||
|
|
LOG_E("%d,%d,%d, 0x%08x,0x%08x",
|
||
|
|
cmd.err, data.err, stop.err, data.flags, sector);
|
||
|
|
|
||
|
|
return -RT_ERROR;
|
||
|
|
}
|
||
|
|
|
||
|
|
return RT_EOK;
|
||
|
|
}
|
||
|
|
|
||
|
|
static rt_err_t rt_mmcsd_init(rt_device_t dev)
|
||
|
|
{
|
||
|
|
return RT_EOK;
|
||
|
|
}
|
||
|
|
|
||
|
|
static rt_err_t rt_mmcsd_open(rt_device_t dev, rt_uint16_t oflag)
|
||
|
|
{
|
||
|
|
return RT_EOK;
|
||
|
|
}
|
||
|
|
|
||
|
|
static rt_err_t rt_mmcsd_close(rt_device_t dev)
|
||
|
|
{
|
||
|
|
return RT_EOK;
|
||
|
|
}
|
||
|
|
|
||
|
|
static rt_err_t rt_mmcsd_control(rt_device_t dev, int cmd, void *args)
|
||
|
|
{
|
||
|
|
struct mmcsd_blk_device *blk_dev = (struct mmcsd_blk_device *)dev->user_data;
|
||
|
|
switch (cmd)
|
||
|
|
{
|
||
|
|
case RT_DEVICE_CTRL_BLK_GETGEOME:
|
||
|
|
rt_memcpy(args, &blk_dev->geometry, sizeof(struct rt_device_blk_geometry));
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
return RT_EOK;
|
||
|
|
}
|
||
|
|
|
||
|
|
static rt_size_t rt_mmcsd_read(rt_device_t dev,
|
||
|
|
rt_off_t pos,
|
||
|
|
void *buffer,
|
||
|
|
rt_size_t size)
|
||
|
|
{
|
||
|
|
rt_err_t err = 0;
|
||
|
|
rt_size_t offset = 0;
|
||
|
|
rt_size_t req_size = 0;
|
||
|
|
rt_size_t remain_size = size;
|
||
|
|
void *rd_ptr = (void *)buffer;
|
||
|
|
struct mmcsd_blk_device *blk_dev = (struct mmcsd_blk_device *)dev->user_data;
|
||
|
|
struct dfs_partition *part = &blk_dev->part;
|
||
|
|
|
||
|
|
if (dev == RT_NULL)
|
||
|
|
{
|
||
|
|
rt_set_errno(-EINVAL);
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
rt_sem_take(part->lock, RT_WAITING_FOREVER);
|
||
|
|
while (remain_size)
|
||
|
|
{
|
||
|
|
req_size = (remain_size > blk_dev->max_req_size) ? blk_dev->max_req_size : remain_size;
|
||
|
|
err = rt_mmcsd_req_blk(blk_dev->card, part->offset + pos + offset, rd_ptr, req_size, 0);
|
||
|
|
if (err)
|
||
|
|
break;
|
||
|
|
offset += req_size;
|
||
|
|
rd_ptr = (void *)((rt_uint8_t *)rd_ptr + (req_size << 9));
|
||
|
|
remain_size -= req_size;
|
||
|
|
}
|
||
|
|
rt_sem_release(part->lock);
|
||
|
|
|
||
|
|
/* the length of reading must align to SECTOR SIZE */
|
||
|
|
if (err)
|
||
|
|
{
|
||
|
|
rt_set_errno(-EIO);
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
return size - remain_size;
|
||
|
|
}
|
||
|
|
|
||
|
|
static rt_size_t rt_mmcsd_write(rt_device_t dev,
|
||
|
|
rt_off_t pos,
|
||
|
|
const void *buffer,
|
||
|
|
rt_size_t size)
|
||
|
|
{
|
||
|
|
rt_err_t err = 0;
|
||
|
|
rt_size_t offset = 0;
|
||
|
|
rt_size_t req_size = 0;
|
||
|
|
rt_size_t remain_size = size;
|
||
|
|
void *wr_ptr = (void *)buffer;
|
||
|
|
struct mmcsd_blk_device *blk_dev = (struct mmcsd_blk_device *)dev->user_data;
|
||
|
|
struct dfs_partition *part = &blk_dev->part;
|
||
|
|
|
||
|
|
if (dev == RT_NULL)
|
||
|
|
{
|
||
|
|
rt_set_errno(-EINVAL);
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
rt_sem_take(part->lock, RT_WAITING_FOREVER);
|
||
|
|
while (remain_size)
|
||
|
|
{
|
||
|
|
req_size = (remain_size > blk_dev->max_req_size) ? blk_dev->max_req_size : remain_size;
|
||
|
|
err = rt_mmcsd_req_blk(blk_dev->card, part->offset + pos + offset, wr_ptr, req_size, 1);
|
||
|
|
if (err)
|
||
|
|
break;
|
||
|
|
offset += req_size;
|
||
|
|
wr_ptr = (void *)((rt_uint8_t *)wr_ptr + (req_size << 9));
|
||
|
|
remain_size -= req_size;
|
||
|
|
}
|
||
|
|
rt_sem_release(part->lock);
|
||
|
|
|
||
|
|
/* the length of reading must align to SECTOR SIZE */
|
||
|
|
if (err)
|
||
|
|
{
|
||
|
|
rt_set_errno(-EIO);
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
return size - remain_size;
|
||
|
|
}
|
||
|
|
|
||
|
|
static rt_int32_t mmcsd_set_blksize(struct rt_mmcsd_card *card)
|
||
|
|
{
|
||
|
|
struct rt_mmcsd_cmd cmd;
|
||
|
|
int err;
|
||
|
|
|
||
|
|
/* Block-addressed cards ignore MMC_SET_BLOCKLEN. */
|
||
|
|
if (card->flags & CARD_FLAG_SDHC)
|
||
|
|
return 0;
|
||
|
|
|
||
|
|
mmcsd_host_lock(card->host);
|
||
|
|
cmd.cmd_code = SET_BLOCKLEN;
|
||
|
|
cmd.arg = 512;
|
||
|
|
cmd.flags = RESP_SPI_R1 | RESP_R1 | CMD_AC;
|
||
|
|
err = mmcsd_send_cmd(card->host, &cmd, 5);
|
||
|
|
mmcsd_host_unlock(card->host);
|
||
|
|
|
||
|
|
if (err)
|
||
|
|
{
|
||
|
|
LOG_E("MMCSD: unable to set block size to %d: %d", cmd.arg, err);
|
||
|
|
|
||
|
|
return -RT_ERROR;
|
||
|
|
}
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
#ifdef RT_USING_DEVICE_OPS
|
||
|
|
const static struct rt_device_ops mmcsd_blk_ops =
|
||
|
|
{
|
||
|
|
rt_mmcsd_init,
|
||
|
|
rt_mmcsd_open,
|
||
|
|
rt_mmcsd_close,
|
||
|
|
rt_mmcsd_read,
|
||
|
|
rt_mmcsd_write,
|
||
|
|
rt_mmcsd_control
|
||
|
|
};
|
||
|
|
#endif
|
||
|
|
|
||
|
|
rt_int32_t rt_mmcsd_blk_probe(struct rt_mmcsd_card *card)
|
||
|
|
{
|
||
|
|
rt_int32_t err = 0;
|
||
|
|
rt_uint8_t i, status;
|
||
|
|
rt_uint8_t *sector;
|
||
|
|
char dname[4];
|
||
|
|
char sname[8];
|
||
|
|
struct mmcsd_blk_device *blk_dev = RT_NULL;
|
||
|
|
|
||
|
|
err = mmcsd_set_blksize(card);
|
||
|
|
if(err)
|
||
|
|
{
|
||
|
|
return err;
|
||
|
|
}
|
||
|
|
|
||
|
|
LOG_D("probe mmcsd block device!");
|
||
|
|
|
||
|
|
/* get the first sector to read partition table */
|
||
|
|
sector = (rt_uint8_t *)rt_malloc(SECTOR_SIZE);
|
||
|
|
if (sector == RT_NULL)
|
||
|
|
{
|
||
|
|
LOG_E("allocate partition sector buffer failed!");
|
||
|
|
|
||
|
|
return -RT_ENOMEM;
|
||
|
|
}
|
||
|
|
|
||
|
|
status = rt_mmcsd_req_blk(card, 0, sector, 1, 0);
|
||
|
|
if (status == RT_EOK)
|
||
|
|
{
|
||
|
|
for (i = 0; i < RT_MMCSD_MAX_PARTITION; i++)
|
||
|
|
{
|
||
|
|
blk_dev = rt_calloc(1, sizeof(struct mmcsd_blk_device));
|
||
|
|
if (!blk_dev)
|
||
|
|
{
|
||
|
|
LOG_E("mmcsd:malloc memory failed!");
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
blk_dev->max_req_size = BLK_MIN((card->host->max_dma_segs *
|
||
|
|
card->host->max_seg_size) >> 9,
|
||
|
|
(card->host->max_blk_count *
|
||
|
|
card->host->max_blk_size) >> 9);
|
||
|
|
|
||
|
|
/* get the first partition */
|
||
|
|
status = dfs_filesystem_get_partition(&blk_dev->part, sector, i);
|
||
|
|
if (status == RT_EOK)
|
||
|
|
{
|
||
|
|
rt_snprintf(dname, 4, "sd%d", i);
|
||
|
|
rt_snprintf(sname, 8, "sem_sd%d", i);
|
||
|
|
blk_dev->part.lock = rt_sem_create(sname, 1, RT_IPC_FLAG_FIFO);
|
||
|
|
|
||
|
|
/* register mmcsd device */
|
||
|
|
blk_dev->dev.type = RT_Device_Class_Block;
|
||
|
|
#ifdef RT_USING_DEVICE_OPS
|
||
|
|
blk_dev->dev.ops = &mmcsd_blk_ops;
|
||
|
|
#else
|
||
|
|
blk_dev->dev.init = rt_mmcsd_init;
|
||
|
|
blk_dev->dev.open = rt_mmcsd_open;
|
||
|
|
blk_dev->dev.close = rt_mmcsd_close;
|
||
|
|
blk_dev->dev.read = rt_mmcsd_read;
|
||
|
|
blk_dev->dev.write = rt_mmcsd_write;
|
||
|
|
blk_dev->dev.control = rt_mmcsd_control;
|
||
|
|
#endif
|
||
|
|
blk_dev->dev.user_data = blk_dev;
|
||
|
|
|
||
|
|
blk_dev->card = card;
|
||
|
|
|
||
|
|
blk_dev->geometry.bytes_per_sector = 1<<9;
|
||
|
|
blk_dev->geometry.block_size = card->card_blksize;
|
||
|
|
blk_dev->geometry.sector_count = blk_dev->part.size;
|
||
|
|
|
||
|
|
rt_device_register(&blk_dev->dev, dname,
|
||
|
|
RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_REMOVABLE | RT_DEVICE_FLAG_STANDALONE);
|
||
|
|
rt_list_insert_after(&blk_devices, &blk_dev->list);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
if (i == 0)
|
||
|
|
{
|
||
|
|
/* there is no partition table */
|
||
|
|
blk_dev->part.offset = 0;
|
||
|
|
blk_dev->part.size = 0;
|
||
|
|
blk_dev->part.lock = rt_sem_create("sem_sd0", 1, RT_IPC_FLAG_FIFO);
|
||
|
|
|
||
|
|
/* register mmcsd device */
|
||
|
|
blk_dev->dev.type = RT_Device_Class_Block;
|
||
|
|
#ifdef RT_USING_DEVICE_OPS
|
||
|
|
blk_dev->dev.ops = &mmcsd_blk_ops;
|
||
|
|
#else
|
||
|
|
blk_dev->dev.init = rt_mmcsd_init;
|
||
|
|
blk_dev->dev.open = rt_mmcsd_open;
|
||
|
|
blk_dev->dev.close = rt_mmcsd_close;
|
||
|
|
blk_dev->dev.read = rt_mmcsd_read;
|
||
|
|
blk_dev->dev.write = rt_mmcsd_write;
|
||
|
|
blk_dev->dev.control = rt_mmcsd_control;
|
||
|
|
#endif
|
||
|
|
blk_dev->dev.user_data = blk_dev;
|
||
|
|
|
||
|
|
blk_dev->card = card;
|
||
|
|
|
||
|
|
blk_dev->geometry.bytes_per_sector = 1<<9;
|
||
|
|
blk_dev->geometry.block_size = card->card_blksize;
|
||
|
|
blk_dev->geometry.sector_count =
|
||
|
|
card->card_capacity * (1024 / 512);
|
||
|
|
|
||
|
|
rt_device_register(&blk_dev->dev, "sd0",
|
||
|
|
RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_REMOVABLE | RT_DEVICE_FLAG_STANDALONE);
|
||
|
|
rt_list_insert_after(&blk_devices, &blk_dev->list);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
rt_free(blk_dev);
|
||
|
|
blk_dev = RT_NULL;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
#ifdef RT_USING_DFS_MNTTABLE
|
||
|
|
if (blk_dev)
|
||
|
|
{
|
||
|
|
LOG_I("try to mount file system!");
|
||
|
|
/* try to mount file system on this block device */
|
||
|
|
dfs_mount_device(&(blk_dev->dev));
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
LOG_E("read mmcsd first sector failed");
|
||
|
|
err = -RT_ERROR;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* release sector buffer */
|
||
|
|
rt_free(sector);
|
||
|
|
|
||
|
|
return err;
|
||
|
|
}
|
||
|
|
|
||
|
|
void rt_mmcsd_blk_remove(struct rt_mmcsd_card *card)
|
||
|
|
{
|
||
|
|
rt_list_t *l, *n;
|
||
|
|
struct mmcsd_blk_device *blk_dev;
|
||
|
|
|
||
|
|
for (l = (&blk_devices)->next, n = l->next; l != &blk_devices; l = n)
|
||
|
|
{
|
||
|
|
blk_dev = (struct mmcsd_blk_device *)rt_list_entry(l, struct mmcsd_blk_device, list);
|
||
|
|
if (blk_dev->card == card)
|
||
|
|
{
|
||
|
|
/* unmount file system */
|
||
|
|
const char * mounted_path = dfs_filesystem_get_mounted_path(&(blk_dev->dev));
|
||
|
|
if (mounted_path)
|
||
|
|
{
|
||
|
|
dfs_unmount(mounted_path);
|
||
|
|
LOG_D("unmount file system %s for device %s.\r\n", mounted_path, blk_dev->dev.parent.name);
|
||
|
|
}
|
||
|
|
rt_sem_delete(blk_dev->part.lock);
|
||
|
|
rt_device_unregister(&blk_dev->dev);
|
||
|
|
rt_list_remove(&blk_dev->list);
|
||
|
|
rt_free(blk_dev);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* This function will initialize block device on the mmc/sd.
|
||
|
|
*
|
||
|
|
* @deprecated since 2.1.0, this function does not need to be invoked
|
||
|
|
* in the system initialization.
|
||
|
|
*/
|
||
|
|
int rt_mmcsd_blk_init(void)
|
||
|
|
{
|
||
|
|
/* nothing */
|
||
|
|
return 0;
|
||
|
|
}
|