diff options
Diffstat (limited to 'include/blk.h')
| -rw-r--r-- | include/blk.h | 40 |
1 files changed, 14 insertions, 26 deletions
diff --git a/include/blk.h b/include/blk.h index 95e86e2d5d1..76bd5baf995 100644 --- a/include/blk.h +++ b/include/blk.h @@ -21,6 +21,8 @@ typedef ulong lbaint_t; #define LBAF "%" LBAFlength "x" #define LBAFU "%" LBAFlength "u" +#define DEFAULT_BLKSZ 512 + struct udevice; static inline bool blk_enabled(void) @@ -513,6 +515,18 @@ const char *blk_get_devtype(struct udevice *dev); */ struct blk_desc *blk_get_by_device(struct udevice *dev); +/** + * blk_get_desc() - Get the block device descriptor for the given device number + * + * @uclass_id: Interface type + * @devnum: Device number (0 = first) + * @descp: Returns block device descriptor on success + * Return: 0 on success, -ENODEV if there is no such device and no device + * with a higher device number, -ENOENT if there is no such device but there + * is one with a higher number, or other -ve on other error. + */ +int blk_get_desc(enum uclass_id uclass_id, int devnum, struct blk_desc **descp); + #else #include <errno.h> /* @@ -716,32 +730,6 @@ int blk_print_device_num(enum uclass_id uclass_id, int devnum); int blk_print_part_devnum(enum uclass_id uclass_id, int devnum); /** - * blk_read_devnum() - read blocks from a device - * - * @uclass_id: Block device type - * @devnum: Device number - * @start: Start block number to read (0=first) - * @blkcnt: Number of blocks to read - * @buffer: Address to write data to - * Return: number of blocks read, or -ve error number on error - */ -ulong blk_read_devnum(enum uclass_id uclass_id, int devnum, lbaint_t start, - lbaint_t blkcnt, void *buffer); - -/** - * blk_write_devnum() - write blocks to a device - * - * @uclass_id: Block device type - * @devnum: Device number - * @start: Start block number to write (0=first) - * @blkcnt: Number of blocks to write - * @buffer: Address to read data from - * Return: number of blocks written, or -ve error number on error - */ -ulong blk_write_devnum(enum uclass_id uclass_id, int devnum, lbaint_t start, - lbaint_t blkcnt, const void *buffer); - -/** * blk_select_hwpart_devnum() - select a hardware partition * * This is similar to blk_dselect_hwpart() but it looks up the interface and |