diff options
Diffstat (limited to 'drivers/mmc/core/queue.h')
| -rw-r--r-- | drivers/mmc/core/queue.h | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/drivers/mmc/core/queue.h b/drivers/mmc/core/queue.h new file mode 100644 index 000000000000..dac8c3d010dd --- /dev/null +++ b/drivers/mmc/core/queue.h @@ -0,0 +1,64 @@ +#ifndef MMC_QUEUE_H +#define MMC_QUEUE_H + +static inline bool mmc_req_is_special(struct request *req) +{ + return req && + (req_op(req) == REQ_OP_FLUSH || + req_op(req) == REQ_OP_DISCARD || + req_op(req) == REQ_OP_SECURE_ERASE); +} + +struct request; +struct task_struct; +struct mmc_blk_data; + +struct mmc_blk_request { + struct mmc_request mrq; + struct mmc_command sbc; + struct mmc_command cmd; + struct mmc_command stop; + struct mmc_data data; + int retune_retry_done; +}; + +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; +#define MMC_QUEUE_SUSPENDED (1 << 0) +#define MMC_QUEUE_NEW_REQUEST (1 << 1) + bool asleep; + struct mmc_blk_data *blkdata; + struct request_queue *queue; + struct mmc_queue_req *mqrq; + struct mmc_queue_req *mqrq_cur; + struct mmc_queue_req *mqrq_prev; + int qdepth; +}; + +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 *); + +extern int mmc_access_rpmb(struct mmc_queue *); + +#endif |