diff options
| author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2006-02-02 12:23:12 +0000 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2006-02-02 12:23:12 +0000 |
| commit | e92251762d02a46177d4105d1744041e3f8bc465 (patch) | |
| tree | 4696c14854b2a5f3982a613fed63e01d941727f3 /include/linux/mmc/mmc.h | |
| parent | a6df590dd8b7644c8e298e3b13442bcd6ceeb739 (diff) | |
| download | kernel_samsung_smdk4412-e92251762d02a46177d4105d1744041e3f8bc465.zip kernel_samsung_smdk4412-e92251762d02a46177d4105d1744041e3f8bc465.tar.gz kernel_samsung_smdk4412-e92251762d02a46177d4105d1744041e3f8bc465.tar.bz2 | |
[MMC] Add MMC command type flags
Some hosts need to know the command type, so pass it via a set of
flags in cmd->flags.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'include/linux/mmc/mmc.h')
| -rw-r--r-- | include/linux/mmc/mmc.h | 35 |
1 files changed, 23 insertions, 12 deletions
diff --git a/include/linux/mmc/mmc.h b/include/linux/mmc/mmc.h index ccd3e13..f38872a 100644 --- a/include/linux/mmc/mmc.h +++ b/include/linux/mmc/mmc.h @@ -21,24 +21,35 @@ struct mmc_command { u32 arg; u32 resp[4]; unsigned int flags; /* expected response type */ -#define MMC_RSP_NONE (0 << 0) -#define MMC_RSP_SHORT (1 << 0) -#define MMC_RSP_LONG (2 << 0) -#define MMC_RSP_MASK (3 << 0) -#define MMC_RSP_CRC (1 << 3) /* expect valid crc */ -#define MMC_RSP_BUSY (1 << 4) /* card may send busy */ -#define MMC_RSP_OPCODE (1 << 5) /* response contains opcode */ +#define MMC_RSP_PRESENT (1 << 0) +#define MMC_RSP_136 (1 << 1) /* 136 bit response */ +#define MMC_RSP_CRC (1 << 2) /* expect valid crc */ +#define MMC_RSP_BUSY (1 << 3) /* card may send busy */ +#define MMC_RSP_OPCODE (1 << 4) /* response contains opcode */ +#define MMC_CMD_MASK (3 << 5) /* command type */ +#define MMC_CMD_AC (0 << 5) +#define MMC_CMD_ADTC (1 << 5) +#define MMC_CMD_BC (2 << 5) +#define MMC_CMD_BCR (3 << 5) /* * 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|MMC_RSP_OPCODE) -#define MMC_RSP_R1B (MMC_RSP_SHORT|MMC_RSP_CRC|MMC_RSP_OPCODE|MMC_RSP_BUSY) -#define MMC_RSP_R2 (MMC_RSP_LONG|MMC_RSP_CRC) -#define MMC_RSP_R3 (MMC_RSP_SHORT) -#define MMC_RSP_R6 (MMC_RSP_SHORT|MMC_RSP_CRC) +#define MMC_RSP_NONE (0) +#define MMC_RSP_R1 (MMC_RSP_PRESENT|MMC_RSP_CRC|MMC_RSP_OPCODE) +#define MMC_RSP_R1B (MMC_RSP_PRESENT|MMC_RSP_CRC|MMC_RSP_OPCODE|MMC_RSP_BUSY) +#define MMC_RSP_R2 (MMC_RSP_PRESENT|MMC_RSP_136|MMC_RSP_CRC) +#define MMC_RSP_R3 (MMC_RSP_PRESENT) +#define MMC_RSP_R6 (MMC_RSP_PRESENT|MMC_RSP_CRC) + +#define mmc_resp_type(cmd) ((cmd)->flags & (MMC_RSP_PRESENT|MMC_RSP_136|MMC_RSP_CRC|MMC_RSP_BUSY|MMC_RSP_OPCODE)) + +/* + * These are the command types. + */ +#define mmc_cmd_type(cmd) ((cmd)->flags & MMC_CMD_TYPE) unsigned int retries; /* max number of retries */ unsigned int error; /* command error */ |