diff options
| author | Russell King <rmk@flint.arm.linux.org.uk> | 2004-09-06 21:36:50 +0100 |
|---|---|---|
| committer | Russell King <rmk@flint.arm.linux.org.uk> | 2004-09-06 21:36:50 +0100 |
| commit | b0e7d7274cdc8b1a49d364b4d92ab2eda4031bdf (patch) | |
| tree | e0033e7765c68ff9288ad2d7f32bccf09d7a2a23 /include | |
| parent | 0e5f06f1187a5522d3412fe058c498cfb6cd534b (diff) | |
[MMC] MMC_RSP_xxx combined response types.
Create a set of MMC_RSP_xxx definitions which correspond to the
response type we expect at a high level. These are created from
a set of flags; a MMC host driver can either interpret the flags
as the high level response type, or the low level individual
flags.
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/mmc/mmc.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/include/linux/mmc/mmc.h b/include/linux/mmc/mmc.h index 1b83c2d64561..c288ae6a4f0c 100644 --- a/include/linux/mmc/mmc.h +++ b/include/linux/mmc/mmc.h @@ -28,6 +28,16 @@ struct mmc_command { #define MMC_RSP_CRC (1 << 3) /* expect valid crc */ #define MMC_RSP_BUSY (1 << 4) /* card may send busy */ +/* + * These are the response types, and correspond to valid bit + * patterns of the above flags. One additional valid pattern + * is all zeros, which means we don't expect a response. + */ +#define MMC_RSP_R1 (MMC_RSP_SHORT|MMC_RSP_CRC) +#define MMC_RSP_R1B (MMC_RSP_SHORT|MMC_RSP_CRC|MMC_RSP_BUSY) +#define MMC_RSP_R2 (MMC_RSP_LONG|MMC_RSP_CRC) +#define MMC_RSP_R3 (MMC_RSP_SHORT) + unsigned int retries; /* max number of retries */ unsigned int error; /* command error */ |