[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>

2 files changed, 24 insertions, 13 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 {
         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 */
diff --git a/include/linux/mmc/protocol.h b/include/linux/mmc/protocol.h
index a14dc306545b..81c3f77f652c 100644
--- a/include/linux/mmc/protocol.h
+++ b/include/linux/mmc/protocol.h
@@ -79,7 +79,7 @@
 /* SD commands                           type  argument     response */
   /* class 8 */
 /* This is basically the same command as for MMC with some quirks. */
-#define SD_SEND_RELATIVE_ADDR     3   /* ac                      R6  */
+#define SD_SEND_RELATIVE_ADDR     3   /* bcr                     R6  */
 
   /* Application commands */
 #define SD_APP_SET_BUS_WIDTH      6   /* ac   [1:0] bus width    R1  */