This commit was manufactured by cvs2svn to create branch 'vserver'.

[linux-2.6.git] / include / linux / mmc / mmc.h

diff --git a/include/linux/mmc/mmc.h b/include/linux/mmc/mmc.h
new file mode 100644 (file)
index 0000000..c288ae6
--- /dev/null
+++ b/include/linux/mmc/mmc.h
@@ -0,0 +1,98 @@
+/*
+ *  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)
+
+       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 */
+       struct request          *req;           /* request structure */
+       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 */
+};
+
+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