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[DeviceDrivers] Add umount operations in SDCard block device.

This commit is contained in:
Bernard Xiong 2016-04-05 11:11:10 +08:00
parent 8043186020
commit 048ffb481a
1 changed files with 32 additions and 8 deletions
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38
components/drivers/sdio/block_dev.c
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@ -27,7 +27,7 @@
#include <drivers/mmcsd_core.h>
static rt_list_t blk_devices;
static rt_list_t blk_devices = RT_LIST_OBJECT_INIT(blk_devices);
struct mmcsd_blk_device
{
@ -336,6 +336,8 @@ rt_int32_t rt_mmcsd_blk_probe(struct rt_mmcsd_card *card)
return err;
}
rt_kprintf("probe mmcsd block device!\n");
/* get the first sector to read partition table */
sector = (rt_uint8_t *)rt_malloc(SECTOR_SIZE);
if (sector == RT_NULL)
@ -350,13 +352,13 @@ rt_int32_t rt_mmcsd_blk_probe(struct rt_mmcsd_card *card)
{
for (i = 0; i < RT_MMCSD_MAX_PARTITION; i++)
{
blk_dev = rt_malloc(sizeof(struct mmcsd_blk_device));
blk_dev = rt_calloc(1, sizeof(struct mmcsd_blk_device));
if (!blk_dev)
{
rt_kprintf("mmcsd:malloc mem failde\n");
rt_kprintf("mmcsd:malloc memory failed!\n");
break;
}
rt_memset((void *)blk_dev, 0, sizeof(struct mmcsd_blk_device));
/* get the first partition */
status = dfs_filesystem_get_partition(&blk_dev->part, sector, i);
if (status == RT_EOK)
@ -424,6 +426,15 @@ rt_int32_t rt_mmcsd_blk_probe(struct rt_mmcsd_card *card)
break;
}
}
#ifdef RT_USING_DFS_MNTTABLE
if (0) // if (blk_dev)
{
rt_kprintf("try to mount file system!\n");
/* try to mount file system on this block device */
dfs_mount_device(&(blk_dev->dev));
}
#endif
}
}
else
@ -440,14 +451,21 @@ rt_int32_t rt_mmcsd_blk_probe(struct rt_mmcsd_card *card)
void rt_mmcsd_blk_remove(struct rt_mmcsd_card *card)
{
rt_list_t *l;
rt_list_t *l, *n;
struct mmcsd_blk_device *blk_dev;
for (l = (&blk_devices)->next; l != &blk_devices; l = l->next)
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);
}
rt_device_unregister(&blk_dev->dev);
rt_list_remove(&blk_dev->list);
rt_free(blk_dev);
@ -455,7 +473,13 @@ void rt_mmcsd_blk_remove(struct rt_mmcsd_card *card)
}
}
/*
* 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.
*/
void rt_mmcsd_blk_init(void)
{
rt_list_init(&blk_devices);
/* nothing */
}