| yuezonghe | 824eb0c | 2024-06-27 02:32:26 -0700 | [diff] [blame] | 1 | #ifndef MMC_QUEUE_H |
| 2 | #define MMC_QUEUE_H |
| 3 | |
| 4 | struct request; |
| 5 | struct task_struct; |
| 6 | |
| 7 | struct mmc_blk_request { |
| 8 | struct mmc_request mrq; |
| 9 | struct mmc_command sbc; |
| 10 | struct mmc_command cmd; |
| 11 | struct mmc_command stop; |
| 12 | struct mmc_data data; |
| 13 | }; |
| 14 | |
| 15 | struct mmc_queue_req { |
| 16 | struct request *req; |
| 17 | struct mmc_blk_request brq; |
| 18 | struct scatterlist *sg; |
| 19 | char *bounce_buf; |
| 20 | struct scatterlist *bounce_sg; |
| 21 | unsigned int bounce_sg_len; |
| 22 | struct mmc_async_req mmc_active; |
| 23 | }; |
| 24 | |
| 25 | struct mmc_queue { |
| 26 | struct mmc_card *card; |
| 27 | struct task_struct *thread; |
| 28 | struct semaphore thread_sem; |
| 29 | unsigned int flags; |
| 30 | int (*issue_fn)(struct mmc_queue *, struct request *); |
| 31 | void *data; |
| 32 | struct request_queue *queue; |
| 33 | struct mmc_queue_req mqrq[2]; |
| 34 | struct mmc_queue_req *mqrq_cur; |
| 35 | struct mmc_queue_req *mqrq_prev; |
| 36 | }; |
| 37 | |
| 38 | extern int mmc_init_queue(struct mmc_queue *, struct mmc_card *, spinlock_t *, |
| 39 | const char *); |
| 40 | extern void mmc_cleanup_queue(struct mmc_queue *); |
| 41 | extern void mmc_queue_suspend(struct mmc_queue *); |
| 42 | extern void mmc_queue_resume(struct mmc_queue *); |
| 43 | |
| 44 | extern unsigned int mmc_queue_map_sg(struct mmc_queue *, |
| 45 | struct mmc_queue_req *); |
| 46 | extern void mmc_queue_bounce_pre(struct mmc_queue_req *); |
| 47 | extern void mmc_queue_bounce_post(struct mmc_queue_req *); |
| 48 | |
| 49 | #endif |