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#ifndef LINUX_MMC_IOCTL_H

#define LINUX_MMC_IOCTL_H

#include <linux/types.h>

struct mmc_ioc_cmd {

        /* Implies direction of data.  true = write, false = read */

        int write_flag;

        /* Application-specific command.  true = precede with CMD55 */

        int is_acmd;

        __u32 opcode;

        __u32 arg;

        __u32 response[4];  /* CMD response */

        unsigned int flags;

        unsigned int blksz;

        unsigned int blocks;

        /*

         * Sleep at least postsleep_min_us useconds, and at most

         * postsleep_max_us useconds *after* issuing command.  Needed for

         * some read commands for which cards have no other way of indicating

         * they're ready for the next command (i.e. there is no equivalent of

         * a "busy" indicator for read operations).

         */

        unsigned int postsleep_min_us;

        unsigned int postsleep_max_us;

        /*

         * Override driver-computed timeouts.  Note the difference in units!

         */

        unsigned int data_timeout_ns;

        unsigned int cmd_timeout_ms;

        /*

         * For 64-bit machines, the next member, ``__u64 data_ptr``, wants to

         * be 8-byte aligned.  Make sure this struct is the same size when

         * built for 32-bit.

         */

        __u32 __pad;

        /* DAT buffer */

        __u64 data_ptr;

};

#define mmc_ioc_cmd_set_data(ic, ptr) ic.data_ptr = (__u64)(unsigned long) ptr

#define MMC_IOC_CMD _IOWR(MMC_BLOCK_MAJOR, 0, struct mmc_ioc_cmd)

/*

 * Since this ioctl is only meant to enhance (and not replace) normal access

 * to the mmc bus device, an upper data transfer limit of MMC_IOC_MAX_BYTES

 * is enforced per ioctl call.  For larger data transfers, use the normal

 * block device operations.

 */

#define MMC_IOC_MAX_BYTES  (512L * 256)

#endif /* LINUX_MMC_IOCTL_H */