disk.h 文件参考

浏览源代码.

结构体
struct	_los_disk_
struct	_los_part_
struct	partition_info
struct	disk_divide_info

类型定义
typedef enum _disk_status_	disk_status_e
typedef struct _los_disk_	los_disk
typedef struct _los_part_	los_part

枚举
enum	_disk_status_ { STAT_UNUSED , STAT_INUSED , STAT_UNREADY }

函数
INT32	los_disk_init (const CHAR *diskName, const struct block_operations *bops, VOID *priv, INT32 diskID, VOID *info)
	Disk driver initialization. 更多...
INT32	los_disk_deinit (INT32 diskID)
	Destroy a disk driver. 更多...
INT32	los_disk_read (INT32 drvID, VOID *buf, UINT64 sector, UINT32 count, BOOL useRead)
	Read data from disk driver. 更多...
INT32	los_disk_write (INT32 drvID, const VOID *buf, UINT64 sector, UINT32 count)
	Write data to a disk driver. 更多...
INT32	los_disk_ioctl (INT32 drvID, INT32 cmd, VOID *buf)
	Get information of disk driver. 更多...
INT32	los_disk_sync (INT32 drvID)
	Sync blib cache. 更多...
INT32	los_disk_set_bcache (INT32 drvID, UINT32 sectorPerBlock, UINT32 blockNum)
	Set blib cache for the disk driver. 更多...
INT32	los_part_read (INT32 pt, VOID *buf, UINT64 sector, UINT32 count, BOOL useRead)
	Read data from chosen partition. 更多...
INT32	los_part_write (INT32 pt, const VOID *buf, UINT64 sector, UINT32 count)
	Write data to chosen partition. 更多...
INT32	los_disk_cache_clear (INT32 drvID)
	Clear the bcache data 更多...
INT32	los_part_ioctl (INT32 pt, INT32 cmd, VOID *buf)
	Get information of chosen partition. 更多...
INT32	los_part_access (const CHAR *dev, mode_t mode)
	Decide the chosen partition is exist or not. 更多...
los_part *	los_part_find (struct Vnode *blkDriver)
	Find disk partition. 更多...
los_disk *	get_disk (INT32 id)
	Find disk driver. 更多...
los_part *	get_part (INT32 id)
	Find disk partition. 更多...
VOID	show_part (los_part *part)
	Print partition information. 更多...
INT32	add_mmc_partition (struct disk_divide_info *info, size_t sectorStart, size_t sectorCount)
	Add a new mmc partition. 更多...
INT32	los_alloc_diskid_byname (const CHAR *diskName)
	alloc a new UNUSED disk id. 更多...
INT32	los_get_diskid_byname (const CHAR *diskName)
	get the INUSED disk id. 更多...
los_disk *	los_get_mmcdisk_bytype (UINT8 type)

类型定义说明

disk_status_e

typedef enum _disk_status_ disk_status_e

los_disk

typedef struct _los_disk_ los_disk

los_part

typedef struct _los_part_ los_part

枚举类型说明

_disk_status_

enum _disk_status_

枚举值
STAT_UNUSED
STAT_INUSED
STAT_UNREADY

在文件 disk.h 第 170 行定义.

                           {
    STAT_UNUSED,
    STAT_INUSED,
    STAT_UNREADY
} disk_status_e;

函数说明

los_get_mmcdisk_bytype()

los_disk * los_get_mmcdisk_bytype

(

UINT8

type

)

在文件 disk.c 第 226 行定义.

{
    const CHAR *mmcDevHead = "/dev/mmcblk";
 
    for (INT32 diskId = 0; diskId < SYS_MAX_DISK; diskId++) {
        los_disk *disk = get_disk(diskId);
        if (disk == NULL) {
            continue;
        } else if ((disk->type == type) && (strncmp(disk->disk_name, mmcDevHead, strlen(mmcDevHead)) == 0)) {
            return disk;
        }
    }
    PRINT_ERR("Cannot find the mmc disk!\n");
    return NULL;
}

函数调用图:

这是这个函数的调用关系图: