1 /* -----------------------------------------------------------------------------
2 * Copyright (c) 2011 Ozmo Inc
3 * Released under the GNU General Public License Version 2 (GPLv2).
4 * -----------------------------------------------------------------------------
9 #include "ozprotocol.h"
11 /*-----------------------------------------------------------------------------
14 typedef void (*oz_elt_callback_t)(struct oz_pd *pd, long context);
16 struct oz_elt_stream {
17 struct list_head link;
18 struct list_head elt_list;
21 unsigned max_buf_count;
26 #define OZ_MAX_ELT_PAYLOAD 255
28 struct list_head link;
29 struct list_head link_order;
32 oz_elt_callback_t callback;
34 struct oz_elt_stream *stream;
35 u8 data[sizeof(struct oz_elt) + OZ_MAX_ELT_PAYLOAD];
40 #define OZ_EI_F_MARKED 0x1
44 struct list_head stream_list;
45 struct list_head order_list;
46 struct list_head isoc_list;
47 struct list_head *elt_pool;
50 u8 tx_seq_num[OZ_NB_APPS];
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);
69 #endif /* _OZELTBUF_H */