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-rw-r--r--include/linux/mmc/mmc.h35
1 files changed, 23 insertions, 12 deletions
diff --git a/include/linux/mmc/mmc.h b/include/linux/mmc/mmc.h
index ccd3e13de1e8..f38872abc126 100644
--- a/include/linux/mmc/mmc.h
+++ b/include/linux/mmc/mmc.h
@@ -21,24 +21,35 @@ struct mmc_command {
21 u32 arg; 21 u32 arg;
22 u32 resp[4]; 22 u32 resp[4];
23 unsigned int flags; /* expected response type */ 23 unsigned int flags; /* expected response type */
24#define MMC_RSP_NONE (0 << 0) 24#define MMC_RSP_PRESENT (1 << 0)
25#define MMC_RSP_SHORT (1 << 0) 25#define MMC_RSP_136 (1 << 1) /* 136 bit response */
26#define MMC_RSP_LONG (2 << 0) 26#define MMC_RSP_CRC (1 << 2) /* expect valid crc */
27#define MMC_RSP_MASK (3 << 0) 27#define MMC_RSP_BUSY (1 << 3) /* card may send busy */
28#define MMC_RSP_CRC (1 << 3) /* expect valid crc */ 28#define MMC_RSP_OPCODE (1 << 4) /* response contains opcode */
29#define MMC_RSP_BUSY (1 << 4) /* card may send busy */ 29#define MMC_CMD_MASK (3 << 5) /* command type */
30#define MMC_RSP_OPCODE (1 << 5) /* response contains opcode */ 30#define MMC_CMD_AC (0 << 5)
31#define MMC_CMD_ADTC (1 << 5)
32#define MMC_CMD_BC (2 << 5)
33#define MMC_CMD_BCR (3 << 5)
31 34
32/* 35/*
33 * These are the response types, and correspond to valid bit 36 * These are the response types, and correspond to valid bit
34 * patterns of the above flags. One additional valid pattern 37 * patterns of the above flags. One additional valid pattern
35 * is all zeros, which means we don't expect a response. 38 * is all zeros, which means we don't expect a response.
36 */ 39 */
37#define MMC_RSP_R1 (MMC_RSP_SHORT|MMC_RSP_CRC|MMC_RSP_OPCODE) 40#define MMC_RSP_NONE (0)
38#define MMC_RSP_R1B (MMC_RSP_SHORT|MMC_RSP_CRC|MMC_RSP_OPCODE|MMC_RSP_BUSY) 41#define MMC_RSP_R1 (MMC_RSP_PRESENT|MMC_RSP_CRC|MMC_RSP_OPCODE)
39#define MMC_RSP_R2 (MMC_RSP_LONG|MMC_RSP_CRC) 42#define MMC_RSP_R1B (MMC_RSP_PRESENT|MMC_RSP_CRC|MMC_RSP_OPCODE|MMC_RSP_BUSY)
40#define MMC_RSP_R3 (MMC_RSP_SHORT) 43#define MMC_RSP_R2 (MMC_RSP_PRESENT|MMC_RSP_136|MMC_RSP_CRC)
41#define MMC_RSP_R6 (MMC_RSP_SHORT|MMC_RSP_CRC) 44#define MMC_RSP_R3 (MMC_RSP_PRESENT)
45#define MMC_RSP_R6 (MMC_RSP_PRESENT|MMC_RSP_CRC)
46
47#define mmc_resp_type(cmd) ((cmd)->flags & (MMC_RSP_PRESENT|MMC_RSP_136|MMC_RSP_CRC|MMC_RSP_BUSY|MMC_RSP_OPCODE))
48
49/*
50 * These are the command types.
51 */
52#define mmc_cmd_type(cmd) ((cmd)->flags & MMC_CMD_TYPE)
42 53
43 unsigned int retries; /* max number of retries */ 54 unsigned int retries; /* max number of retries */
44 unsigned int error; /* command error */ 55 unsigned int error; /* command error */