1 files changed, 101 insertions, 0 deletions
diff --git a/include/linux/mmc/mmc.h b/include/linux/mmc/mmc.h
new file mode 100644
index 000000000000..0d35d4ffb360
--- /dev/null
+++ b/include/linux/mmc/mmc.h
@@ -0,0 +1,101 @@
+/*
+ *  linux/include/linux/mmc/mmc.h
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef MMC_H
+#define MMC_H
+
+#include <linux/list.h>
+#include <linux/interrupt.h>
+#include <linux/device.h>
+
+struct request;
+struct mmc_data;
+struct mmc_request;
+
+struct mmc_command {
+	u32			opcode;
+	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 */
+
+/*
+ * 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)
+#define MMC_RSP_R6	(MMC_RSP_SHORT|MMC_RSP_CRC)
+
+	unsigned int		retries;	/* max number of retries */
+	unsigned int		error;		/* command error */
+
+#define MMC_ERR_NONE	0
+#define MMC_ERR_TIMEOUT	1
+#define MMC_ERR_BADCRC	2
+#define MMC_ERR_FIFO	3
+#define MMC_ERR_FAILED	4
+#define MMC_ERR_INVALID	5
+
+	struct mmc_data		*data;		/* data segment associated with cmd */
+	struct mmc_request	*mrq;		/* assoicated request */
+};
+
+struct mmc_data {
+	unsigned int		timeout_ns;	/* data timeout (in ns, max 80ms) */
+	unsigned int		timeout_clks;	/* data timeout (in clocks) */
+	unsigned int		blksz_bits;	/* data block size */
+	unsigned int		blocks;		/* number of blocks */
+	unsigned int		error;		/* data error */
+	unsigned int		flags;
+
+#define MMC_DATA_WRITE	(1 << 8)
+#define MMC_DATA_READ	(1 << 9)
+#define MMC_DATA_STREAM	(1 << 10)
+
+	unsigned int		bytes_xfered;
+
+	struct mmc_command	*stop;		/* stop command */
+	struct mmc_request	*mrq;		/* assoicated request */
+
+	unsigned int		sg_len;		/* size of scatter list */
+	struct scatterlist	*sg;		/* I/O scatter list */
+};
+
+struct mmc_request {
+	struct mmc_command	*cmd;
+	struct mmc_data		*data;
+	struct mmc_command	*stop;
+
+	void			*done_data;	/* completion data */
+	void			(*done)(struct mmc_request *);/* completion function */
+};
+
+struct mmc_host;
+struct mmc_card;
+
+extern int mmc_wait_for_req(struct mmc_host *, struct mmc_request *);
+extern int mmc_wait_for_cmd(struct mmc_host *, struct mmc_command *, int);
+
+extern int __mmc_claim_host(struct mmc_host *host, struct mmc_card *card);
+
+static inline void mmc_claim_host(struct mmc_host *host)
+{
+	__mmc_claim_host(host, (struct mmc_card *)-1);
+}
+
+extern void mmc_release_host(struct mmc_host *host);
+
+#endif