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authorPierre Ossman <drzeus-list@cx.rmk.(none)>2005-05-21 10:27:02 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2005-05-21 10:27:02 +0100
commit912490db699d83cb3d03570b63df7448677a3f56 (patch)
treee2e45ad64584dfa9dbff212a2ba3e884b2bbca43 /include/linux/mmc
parent9636273dae265b9354b861b373cd43cd76a6d0fe (diff)
downloadop-kernel-dev-912490db699d83cb3d03570b63df7448677a3f56.zip
op-kernel-dev-912490db699d83cb3d03570b63df7448677a3f56.tar.gz
[PATCH] MMC: Proper MMC command classes support
Defines for the different command classes as defined in the MMC and SD specifications. Removes the check for high command classes and instead checks that the command classes needed are present. Previous solution killed forward compatibility at no apparent gain. Signed-of-by: Pierre Ossman
Diffstat (limited to 'include/linux/mmc')
-rw-r--r--include/linux/mmc/protocol.h27
1 files changed, 27 insertions, 0 deletions
diff --git a/include/linux/mmc/protocol.h b/include/linux/mmc/protocol.h
index 7b904c5..8963428 100644
--- a/include/linux/mmc/protocol.h
+++ b/include/linux/mmc/protocol.h
@@ -195,6 +195,33 @@ struct _mmc_csd {
#define MMC_VDD_35_36 0x00800000 /* VDD voltage 3.5 ~ 3.6 */
#define MMC_CARD_BUSY 0x80000000 /* Card Power up status bit */
+/*
+ * Card Command Classes (CCC)
+ */
+#define CCC_BASIC (1<<0) /* (0) Basic protocol functions */
+ /* (CMD0,1,2,3,4,7,9,10,12,13,15) */
+#define CCC_STREAM_READ (1<<1) /* (1) Stream read commands */
+ /* (CMD11) */
+#define CCC_BLOCK_READ (1<<2) /* (2) Block read commands */
+ /* (CMD16,17,18) */
+#define CCC_STREAM_WRITE (1<<3) /* (3) Stream write commands */
+ /* (CMD20) */
+#define CCC_BLOCK_WRITE (1<<4) /* (4) Block write commands */
+ /* (CMD16,24,25,26,27) */
+#define CCC_ERASE (1<<5) /* (5) Ability to erase blocks */
+ /* (CMD32,33,34,35,36,37,38,39) */
+#define CCC_WRITE_PROT (1<<6) /* (6) Able to write protect blocks */
+ /* (CMD28,29,30) */
+#define CCC_LOCK_CARD (1<<7) /* (7) Able to lock down card */
+ /* (CMD16,CMD42) */
+#define CCC_APP_SPEC (1<<8) /* (8) Application specific */
+ /* (CMD55,56,57,ACMD*) */
+#define CCC_IO_MODE (1<<9) /* (9) I/O mode */
+ /* (CMD5,39,40,52,53) */
+#define CCC_SWITCH (1<<10) /* (10) High speed switch */
+ /* (CMD6,34,35,36,37,50) */
+ /* (11) Reserved */
+ /* (CMD?) */
/*
* CSD field definitions
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