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dm: blk: Convert interface type to an enum 

Since these are sequentially numbered it makes sense to use an enum. It
avoids having to maintain the maximum value, and provides a type we can use
if it is useful.

In fact the maximum value is not used. Rename it to COUNT, since MAX suggests
it is the maximum valid value, but it is not.

Signed-off-by: Simon Glass <sjg@chromium.org>
Tested-by: Stephen Warren <swarren@nvidia.com>
utp
Simon Glass 2016-02-29 15:25:40 -07:00
parent 1a73661bc7
commit 5ec4f1a5f3
1 changed files with 15 additions and 12 deletions
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27
include/blk.h
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@ -19,20 +19,23 @@ typedef ulong lbaint_t;
#define LBAFU "%" LBAFlength "u"
/* Interface types: */
#define IF_TYPE_UNKNOWN 0
#define IF_TYPE_IDE 1
#define IF_TYPE_SCSI 2
#define IF_TYPE_ATAPI 3
#define IF_TYPE_USB 4
#define IF_TYPE_DOC 5
#define IF_TYPE_MMC 6
#define IF_TYPE_SD 7
#define IF_TYPE_SATA 8
#define IF_TYPE_HOST 9
#define IF_TYPE_MAX 10 /* Max number of IF_TYPE_* supported */
enum if_type {
IF_TYPE_UNKNOWN = 0,
IF_TYPE_IDE,
IF_TYPE_SCSI,
IF_TYPE_ATAPI,
IF_TYPE_USB,
IF_TYPE_DOC,
IF_TYPE_MMC,
IF_TYPE_SD,
IF_TYPE_SATA,
IF_TYPE_HOST,
IF_TYPE_COUNT, /* Number of interface types */
};
struct blk_desc {
int if_type; /* type of the interface */
enum if_type if_type; /* type of the interface */
int dev; /* device number */
unsigned char part_type; /* partition type */
unsigned char target; /* target SCSI ID */