diff options
| author | Simon Glass <sjg@chromium.org> | 2017-07-29 11:34:54 -0600 |
|---|---|---|
| committer | Jaehoon Chung <jh80.chung@samsung.com> | 2017-08-17 16:44:16 +0900 |
| commit | 4395f6673901196b58821e2e9e37fb8e93b25528 (patch) | |
| tree | 4e04478404c74372a01904616a013a491e7c400f /include/blk.h | |
| parent | 6faa4ed74df2d83cbb959ba799032da4249893b6 (diff) | |
dm: blk: Add a generic function for block device commands
Most block devices provide a command (e.g. 'sata', 'scsi', 'ide') and
these commands generally do the same thing. This makes it harder to
maintain this code and keep it consistent.
We now have a block device interface which is either implemented by driver
model (when CONFIG_BLK is enabled) or with a legacy interface. Therefore
it is possible to handle most of what these commands do with generic code.
Add a new generic function to process block-device commands using the
interface type and the current device number for that type.
Signed-off-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'include/blk.h')
| -rw-r--r-- | include/blk.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/include/blk.h b/include/blk.h index 8672e32fe1..a106f9ca0e 100644 --- a/include/blk.h +++ b/include/blk.h @@ -632,4 +632,16 @@ int blk_select_hwpart_devnum(enum if_type if_type, int devnum, int hwpart); */ const char *blk_get_if_type_name(enum if_type if_type); +/** + * blk_common_cmd() - handle common commands with block devices + * + * @args: Number of arguments to the command (argv[0] is the command itself) + * @argv: Command arguments + * @if_type: Interface type + * @cur_devnump: Current device number for this interface type + * @return 0 if OK, CMD_RET_ERROR on error + */ +int blk_common_cmd(int argc, char * const argv[], enum if_type if_type, + int *cur_devnump); + #endif |