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Commit | Line | Data |
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1da177e4 LT |
1 | #ifndef MMC_QUEUE_H |
2 | #define MMC_QUEUE_H | |
3 | ||
ef3a69c7 SJ |
4 | #define MMC_REQ_SPECIAL_MASK (REQ_DISCARD | REQ_FLUSH) |
5 | ||
1da177e4 LT |
6 | struct request; |
7 | struct task_struct; | |
8 | ||
97868a2b PF |
9 | struct mmc_blk_request { |
10 | struct mmc_request mrq; | |
11 | struct mmc_command sbc; | |
12 | struct mmc_command cmd; | |
13 | struct mmc_command stop; | |
14 | struct mmc_data data; | |
15 | }; | |
16 | ||
ce39f9d1 SJ |
17 | enum mmc_packed_type { |
18 | MMC_PACKED_NONE = 0, | |
19 | MMC_PACKED_WRITE, | |
20 | }; | |
21 | ||
22 | #define mmc_packed_cmd(type) ((type) != MMC_PACKED_NONE) | |
23 | #define mmc_packed_wr(type) ((type) == MMC_PACKED_WRITE) | |
24 | ||
25 | struct mmc_packed { | |
26 | struct list_head list; | |
27 | u32 cmd_hdr[1024]; | |
28 | unsigned int blocks; | |
29 | u8 nr_entries; | |
30 | u8 retries; | |
31 | s16 idx_failure; | |
32 | }; | |
33 | ||
97868a2b PF |
34 | struct mmc_queue_req { |
35 | struct request *req; | |
36 | struct mmc_blk_request brq; | |
37 | struct scatterlist *sg; | |
38 | char *bounce_buf; | |
39 | struct scatterlist *bounce_sg; | |
40 | unsigned int bounce_sg_len; | |
ee8a43a5 | 41 | struct mmc_async_req mmc_active; |
ce39f9d1 SJ |
42 | enum mmc_packed_type cmd_type; |
43 | struct mmc_packed *packed; | |
97868a2b PF |
44 | }; |
45 | ||
1da177e4 LT |
46 | struct mmc_queue { |
47 | struct mmc_card *card; | |
87598a2b | 48 | struct task_struct *thread; |
1da177e4 LT |
49 | struct semaphore thread_sem; |
50 | unsigned int flags; | |
2220eedf KD |
51 | #define MMC_QUEUE_SUSPENDED (1 << 0) |
52 | #define MMC_QUEUE_NEW_REQUEST (1 << 1) | |
53 | ||
1da177e4 LT |
54 | int (*issue_fn)(struct mmc_queue *, struct request *); |
55 | void *data; | |
56 | struct request_queue *queue; | |
04296b7b | 57 | struct mmc_queue_req mqrq[2]; |
97868a2b | 58 | struct mmc_queue_req *mqrq_cur; |
04296b7b | 59 | struct mmc_queue_req *mqrq_prev; |
1da177e4 LT |
60 | }; |
61 | ||
d09408ad AH |
62 | extern int mmc_init_queue(struct mmc_queue *, struct mmc_card *, spinlock_t *, |
63 | const char *); | |
1da177e4 LT |
64 | extern void mmc_cleanup_queue(struct mmc_queue *); |
65 | extern void mmc_queue_suspend(struct mmc_queue *); | |
66 | extern void mmc_queue_resume(struct mmc_queue *); | |
67 | ||
97868a2b PF |
68 | extern unsigned int mmc_queue_map_sg(struct mmc_queue *, |
69 | struct mmc_queue_req *); | |
70 | extern void mmc_queue_bounce_pre(struct mmc_queue_req *); | |
71 | extern void mmc_queue_bounce_post(struct mmc_queue_req *); | |
98ccf149 | 72 | |
ce39f9d1 SJ |
73 | extern int mmc_packed_init(struct mmc_queue *, struct mmc_card *); |
74 | extern void mmc_packed_clean(struct mmc_queue *); | |
75 | ||
1da177e4 | 76 | #endif |