queue.h

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#ifndef MMC_QUEUE_H
#define MMC_QUEUE_H

struct request;
struct task_struct;

struct mmc_blk_request {
    struct mmc_request  mrq;
    struct mmc_command  sbc;
    struct mmc_command  cmd;
    struct mmc_command  stop;
    struct mmc_data     data;
};

struct mmc_queue_req {
    struct request      *req;
    struct mmc_blk_request  brq;
    struct scatterlist  *sg;
    char            *bounce_buf;
    struct scatterlist  *bounce_sg;
    unsigned int        bounce_sg_len;
    struct mmc_async_req    mmc_active;
};

struct mmc_queue {
    struct mmc_card     *card;
    struct task_struct  *thread;
    struct semaphore    thread_sem;
    unsigned int        flags;
    int         (*issue_fn)(struct mmc_queue *, struct request *);
    void            *data;
    struct request_queue    *queue;
    struct mmc_queue_req    mqrq[2];
    struct mmc_queue_req    *mqrq_cur;
    struct mmc_queue_req    *mqrq_prev;
};

extern int mmc_init_queue(struct mmc_queue *, struct mmc_card *, spinlock_t *,
              const char *);
extern void mmc_cleanup_queue(struct mmc_queue *);
extern void mmc_queue_suspend(struct mmc_queue *);
extern void mmc_queue_resume(struct mmc_queue *);

extern unsigned int mmc_queue_map_sg(struct mmc_queue *,
                     struct mmc_queue_req *);
extern void mmc_queue_bounce_pre(struct mmc_queue_req *);
extern void mmc_queue_bounce_post(struct mmc_queue_req *);

#endif