diff options
Diffstat (limited to 'drivers/mmc/card/queue.h')
| -rw-r--r-- | drivers/mmc/card/queue.h | 63 |
1 files changed, 54 insertions, 9 deletions
diff --git a/drivers/mmc/card/queue.h b/drivers/mmc/card/queue.h index 64e66e0d499..5752d50049a 100644 --- a/drivers/mmc/card/queue.h +++ b/drivers/mmc/card/queue.h @@ -1,31 +1,76 @@ #ifndef MMC_QUEUE_H #define MMC_QUEUE_H +#define MMC_REQ_SPECIAL_MASK (REQ_DISCARD | REQ_FLUSH) + 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; +}; + +enum mmc_packed_type { + MMC_PACKED_NONE = 0, + MMC_PACKED_WRITE, +}; + +#define mmc_packed_cmd(type) ((type) != MMC_PACKED_NONE) +#define mmc_packed_wr(type) ((type) == MMC_PACKED_WRITE) + +struct mmc_packed { + struct list_head list; + u32 cmd_hdr[1024]; + unsigned int blocks; + u8 nr_entries; + u8 retries; + s16 idx_failure; +}; + +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; + enum mmc_packed_type cmd_type; + struct mmc_packed *packed; +}; + struct mmc_queue { struct mmc_card *card; struct task_struct *thread; struct semaphore thread_sem; unsigned int flags; - struct request *req; +#define MMC_QUEUE_SUSPENDED (1 << 0) +#define MMC_QUEUE_NEW_REQUEST (1 << 1) + int (*issue_fn)(struct mmc_queue *, struct request *); void *data; struct request_queue *queue; - struct scatterlist *sg; - char *bounce_buf; - struct scatterlist *bounce_sg; - unsigned int bounce_sg_len; + 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 *); +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 *); -extern void mmc_queue_bounce_pre(struct mmc_queue *); -extern void mmc_queue_bounce_post(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 *); + +extern int mmc_packed_init(struct mmc_queue *, struct mmc_card *); +extern void mmc_packed_clean(struct mmc_queue *); #endif |
