projects / GitHub / mt8127 / android_kernel_alcatel_ttab.git / blame
| Commit | Line | Data |
|---|---|---|
| bc3157dd CK |
1 | /* ----------------------------------------------------------------------------- |
| 2 | * Copyright (c) 2011 Ozmo Inc | |
| 3 | * Released under the GNU General Public License Version 2 (GPLv2). | |
| 4 | * ----------------------------------------------------------------------------- | |
| 5 | */ | |
| 6 | #ifndef _OZELTBUF_H | |
| 7 | #define _OZELTBUF_H | |
| 8 | ||
| 9 | #include "ozprotocol.h" | |
| 10 | ||
| 11 | /*----------------------------------------------------------------------------- | |
| 12 | */ | |
| 13 | struct oz_pd; | |
| 14 | typedef void (*oz_elt_callback_t)(struct oz_pd *pd, long context); | |
| 15 | ||
| 16 | struct oz_elt_stream { | |
| 17 | struct list_head link; | |
| 18 | struct list_head elt_list; | |
| 19 | atomic_t ref_count; | |
| 20 | unsigned buf_count; | |
| 21 | unsigned max_buf_count; | |
| 22 | u8 frame_number; | |
| 23 | u8 id; | |
| 24 | }; | |
| 25 | ||
| 26 | #define OZ_MAX_ELT_PAYLOAD 255 | |
| 27 | struct oz_elt_info { | |
| 28 | struct list_head link; | |
| 29 | struct list_head link_order; | |
| 30 | u8 flags; | |
| 31 | u8 app_id; | |
| 32 | oz_elt_callback_t callback; | |
| 33 | long context; | |
| 34 | struct oz_elt_stream *stream; | |
| 35 | u8 data[sizeof(struct oz_elt) + OZ_MAX_ELT_PAYLOAD]; | |
| 36 | int length; | |
| 37 | unsigned magic; | |
| 38 | }; | |
| 39 | /* Flags values */ | |
| 40 | #define OZ_EI_F_MARKED 0x1 | |
| 41 | ||
| 42 | struct oz_elt_buf { | |
| 43 | spinlock_t lock; | |
| 44 | struct list_head stream_list; | |
| 45 | struct list_head order_list; | |
| 46 | struct list_head isoc_list; | |
| 47 | struct list_head *elt_pool; | |
| 48 | int free_elts; | |
| 49 | int max_free_elts; | |
| 50 | u8 tx_seq_num[OZ_NB_APPS]; | |
| 51 | }; | |
| 52 | ||
| 53 | int oz_elt_buf_init(struct oz_elt_buf *buf); | |
| 54 | void oz_elt_buf_term(struct oz_elt_buf *buf); | |
| 55 | struct oz_elt_info *oz_elt_info_alloc(struct oz_elt_buf *buf); | |
| 56 | void oz_elt_info_free(struct oz_elt_buf *buf, struct oz_elt_info *ei); | |
| 57 | void oz_elt_info_free_chain(struct oz_elt_buf *buf, struct list_head *list); | |
| 58 | int oz_elt_stream_create(struct oz_elt_buf *buf, u8 id, int max_buf_count); | |
| 59 | int oz_elt_stream_delete(struct oz_elt_buf *buf, u8 id); | |
| 60 | void oz_elt_stream_get(struct oz_elt_stream *st); | |
| 61 | void oz_elt_stream_put(struct oz_elt_stream *st); | |
| 62 | int oz_queue_elt_info(struct oz_elt_buf *buf, u8 isoc, u8 id, | |
| 63 | struct oz_elt_info *ei); | |
| 64 | int oz_select_elts_for_tx(struct oz_elt_buf *buf, u8 isoc, unsigned *len, | |
| 65 | unsigned max_len, struct list_head *list); | |
| 66 | int oz_are_elts_available(struct oz_elt_buf *buf); | |
| 67 | void oz_trim_elt_pool(struct oz_elt_buf *buf); | |
| 68 | ||
| 69 | #endif /* _OZELTBUF_H */ | |
| 70 |