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authorRussell King <rmk@dyn-67.arm.linux.org.uk>2006-02-02 12:23:12 +0000
committerRussell King <rmk+kernel@arm.linux.org.uk>2006-02-02 12:23:12 +0000
commite92251762d02a46177d4105d1744041e3f8bc465 (patch)
tree4696c14854b2a5f3982a613fed63e01d941727f3 /include/linux/mmc
parenta6df590dd8b7644c8e298e3b13442bcd6ceeb739 (diff)
downloadop-kernel-dev-e92251762d02a46177d4105d1744041e3f8bc465.zip
op-kernel-dev-e92251762d02a46177d4105d1744041e3f8bc465.tar.gz
[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')
-rw-r--r--include/linux/mmc/mmc.h35
-rw-r--r--include/linux/mmc/protocol.h2
2 files changed, 24 insertions, 13 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 */
diff --git a/include/linux/mmc/protocol.h b/include/linux/mmc/protocol.h
index a14dc30..81c3f77 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 */
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