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-rw-r--r--include/linux/mmc/mmc.h10
1 files changed, 10 insertions, 0 deletions
diff --git a/include/linux/mmc/mmc.h b/include/linux/mmc/mmc.h
index 1b83c2d64561..c288ae6a4f0c 100644
--- a/include/linux/mmc/mmc.h
+++ b/include/linux/mmc/mmc.h
@@ -28,6 +28,16 @@ struct mmc_command {
#define MMC_RSP_CRC (1 << 3) /* expect valid crc */
#define MMC_RSP_BUSY (1 << 4) /* card may send busy */
+/*
+ * 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)
+#define MMC_RSP_R1B (MMC_RSP_SHORT|MMC_RSP_CRC|MMC_RSP_BUSY)
+#define MMC_RSP_R2 (MMC_RSP_LONG|MMC_RSP_CRC)
+#define MMC_RSP_R3 (MMC_RSP_SHORT)
+
unsigned int retries; /* max number of retries */
unsigned int error; /* command error */