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1da177e4 LT |
1 | /* |
2 | * dvb_demux.h: DVB kernel demux API | |
3 | * | |
4 | * Copyright (C) 2000-2001 Marcus Metzler & Ralph Metzler | |
5 | * for convergence integrated media GmbH | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or | |
8 | * modify it under the terms of the GNU Lesser General Public License | |
9 | * as published by the Free Software Foundation; either version 2.1 | |
10 | * of the License, or (at your option) any later version. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
16 | * | |
1da177e4 LT |
17 | */ |
18 | ||
1da177e4 LT |
19 | #ifndef _DVB_DEMUX_H_ |
20 | #define _DVB_DEMUX_H_ | |
21 | ||
22 | #include <linux/time.h> | |
23 | #include <linux/timer.h> | |
24 | #include <linux/spinlock.h> | |
3593cab5 | 25 | #include <linux/mutex.h> |
1da177e4 LT |
26 | |
27 | #include "demux.h" | |
28 | ||
29 | #define DMX_TYPE_TS 0 | |
30 | #define DMX_TYPE_SEC 1 | |
31 | #define DMX_TYPE_PES 2 | |
32 | ||
33 | #define DMX_STATE_FREE 0 | |
34 | #define DMX_STATE_ALLOCATED 1 | |
35 | #define DMX_STATE_SET 2 | |
36 | #define DMX_STATE_READY 3 | |
37 | #define DMX_STATE_GO 4 | |
38 | ||
39 | #define DVB_DEMUX_MASK_MAX 18 | |
40 | ||
0d834635 AO |
41 | #define MAX_PID 0x1fff |
42 | ||
26b9d6c0 AO |
43 | #define SPEED_PKTS_INTERVAL 50000 |
44 | ||
1da177e4 | 45 | struct dvb_demux_filter { |
dad4a730 AO |
46 | struct dmx_section_filter filter; |
47 | u8 maskandmode[DMX_MAX_FILTER_SIZE]; | |
48 | u8 maskandnotmode[DMX_MAX_FILTER_SIZE]; | |
1da177e4 LT |
49 | int doneq; |
50 | ||
dad4a730 AO |
51 | struct dvb_demux_filter *next; |
52 | struct dvb_demux_feed *feed; | |
53 | int index; | |
54 | int state; | |
55 | int type; | |
1da177e4 | 56 | |
dad4a730 AO |
57 | u16 hw_handle; |
58 | struct timer_list timer; | |
1da177e4 LT |
59 | }; |
60 | ||
1da177e4 LT |
61 | #define DMX_FEED_ENTRY(pos) list_entry(pos, struct dvb_demux_feed, list_head) |
62 | ||
63 | struct dvb_demux_feed { | |
dad4a730 AO |
64 | union { |
65 | struct dmx_ts_feed ts; | |
66 | struct dmx_section_feed sec; | |
1da177e4 LT |
67 | } feed; |
68 | ||
dad4a730 AO |
69 | union { |
70 | dmx_ts_cb ts; | |
71 | dmx_section_cb sec; | |
1da177e4 LT |
72 | } cb; |
73 | ||
dad4a730 | 74 | struct dvb_demux *demux; |
1da177e4 | 75 | void *priv; |
dad4a730 AO |
76 | int type; |
77 | int state; | |
78 | u16 pid; | |
1da177e4 | 79 | |
e95be158 | 80 | ktime_t timeout; |
dad4a730 | 81 | struct dvb_demux_filter *filter; |
1da177e4 | 82 | |
dad4a730 AO |
83 | int ts_type; |
84 | enum dmx_ts_pes pes_type; | |
1da177e4 | 85 | |
dad4a730 AO |
86 | int cc; |
87 | int pusi_seen; /* prevents feeding of garbage from previous section */ | |
1da177e4 | 88 | |
dad4a730 | 89 | u16 peslen; |
1da177e4 LT |
90 | |
91 | struct list_head list_head; | |
dad4a730 | 92 | unsigned int index; /* a unique index for each feed (can be used as hardware pid filter index) */ |
1da177e4 LT |
93 | }; |
94 | ||
95 | struct dvb_demux { | |
dad4a730 AO |
96 | struct dmx_demux dmx; |
97 | void *priv; | |
98 | int filternum; | |
99 | int feednum; | |
100 | int (*start_feed)(struct dvb_demux_feed *feed); | |
101 | int (*stop_feed)(struct dvb_demux_feed *feed); | |
102 | int (*write_to_decoder)(struct dvb_demux_feed *feed, | |
1da177e4 | 103 | const u8 *buf, size_t len); |
dad4a730 | 104 | u32 (*check_crc32)(struct dvb_demux_feed *feed, |
1da177e4 | 105 | const u8 *buf, size_t len); |
dad4a730 | 106 | void (*memcopy)(struct dvb_demux_feed *feed, u8 *dst, |
1da177e4 LT |
107 | const u8 *src, size_t len); |
108 | ||
dad4a730 | 109 | int users; |
1da177e4 | 110 | #define MAX_DVB_DEMUX_USERS 10 |
dad4a730 AO |
111 | struct dvb_demux_filter *filter; |
112 | struct dvb_demux_feed *feed; | |
1da177e4 | 113 | |
dad4a730 | 114 | struct list_head frontend_list; |
1da177e4 | 115 | |
fde04ab9 MCC |
116 | struct dvb_demux_feed *pesfilter[DMX_PES_OTHER]; |
117 | u16 pids[DMX_PES_OTHER]; | |
dad4a730 AO |
118 | int playing; |
119 | int recording; | |
1da177e4 LT |
120 | |
121 | #define DMX_MAX_PID 0x2000 | |
122 | struct list_head feed_list; | |
dad4a730 AO |
123 | u8 tsbuf[204]; |
124 | int tsbufp; | |
1da177e4 | 125 | |
3593cab5 | 126 | struct mutex mutex; |
1da177e4 | 127 | spinlock_t lock; |
0d834635 AO |
128 | |
129 | uint8_t *cnt_storage; /* for TS continuity check */ | |
26b9d6c0 | 130 | |
e95be158 | 131 | ktime_t speed_last_time; /* for TS speed check */ |
26b9d6c0 | 132 | uint32_t speed_pkts_cnt; /* for TS speed check */ |
1da177e4 LT |
133 | }; |
134 | ||
1da177e4 | 135 | int dvb_dmx_init(struct dvb_demux *dvbdemux); |
93653467 | 136 | void dvb_dmx_release(struct dvb_demux *dvbdemux); |
dad4a730 AO |
137 | void dvb_dmx_swfilter_packets(struct dvb_demux *dvbdmx, const u8 *buf, |
138 | size_t count); | |
1da177e4 | 139 | void dvb_dmx_swfilter(struct dvb_demux *demux, const u8 *buf, size_t count); |
dad4a730 AO |
140 | void dvb_dmx_swfilter_204(struct dvb_demux *demux, const u8 *buf, |
141 | size_t count); | |
8e156702 MK |
142 | void dvb_dmx_swfilter_raw(struct dvb_demux *demux, const u8 *buf, |
143 | size_t count); | |
1da177e4 LT |
144 | |
145 | #endif /* _DVB_DEMUX_H_ */ |