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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 | * | |
17 | * You should have received a copy of the GNU Lesser General Public License | |
18 | * along with this program; if not, write to the Free Software | |
19 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
20 | * | |
21 | */ | |
22 | ||
1da177e4 LT |
23 | #ifndef _DVB_DEMUX_H_ |
24 | #define _DVB_DEMUX_H_ | |
25 | ||
26 | #include <linux/time.h> | |
27 | #include <linux/timer.h> | |
28 | #include <linux/spinlock.h> | |
3593cab5 | 29 | #include <linux/mutex.h> |
1da177e4 LT |
30 | |
31 | #include "demux.h" | |
32 | ||
33 | #define DMX_TYPE_TS 0 | |
34 | #define DMX_TYPE_SEC 1 | |
35 | #define DMX_TYPE_PES 2 | |
36 | ||
37 | #define DMX_STATE_FREE 0 | |
38 | #define DMX_STATE_ALLOCATED 1 | |
39 | #define DMX_STATE_SET 2 | |
40 | #define DMX_STATE_READY 3 | |
41 | #define DMX_STATE_GO 4 | |
42 | ||
43 | #define DVB_DEMUX_MASK_MAX 18 | |
44 | ||
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; | |
79 | u8 *buffer; | |
80 | int buffer_size; | |
1da177e4 | 81 | |
dad4a730 AO |
82 | struct timespec timeout; |
83 | struct dvb_demux_filter *filter; | |
1da177e4 | 84 | |
dad4a730 AO |
85 | int ts_type; |
86 | enum dmx_ts_pes pes_type; | |
1da177e4 | 87 | |
dad4a730 AO |
88 | int cc; |
89 | int pusi_seen; /* prevents feeding of garbage from previous section */ | |
1da177e4 | 90 | |
dad4a730 | 91 | u16 peslen; |
1da177e4 LT |
92 | |
93 | struct list_head list_head; | |
dad4a730 | 94 | unsigned int index; /* a unique index for each feed (can be used as hardware pid filter index) */ |
1da177e4 LT |
95 | }; |
96 | ||
97 | struct dvb_demux { | |
dad4a730 AO |
98 | struct dmx_demux dmx; |
99 | void *priv; | |
100 | int filternum; | |
101 | int feednum; | |
102 | int (*start_feed)(struct dvb_demux_feed *feed); | |
103 | int (*stop_feed)(struct dvb_demux_feed *feed); | |
104 | int (*write_to_decoder)(struct dvb_demux_feed *feed, | |
1da177e4 | 105 | const u8 *buf, size_t len); |
dad4a730 | 106 | u32 (*check_crc32)(struct dvb_demux_feed *feed, |
1da177e4 | 107 | const u8 *buf, size_t len); |
dad4a730 | 108 | void (*memcopy)(struct dvb_demux_feed *feed, u8 *dst, |
1da177e4 LT |
109 | const u8 *src, size_t len); |
110 | ||
dad4a730 | 111 | int users; |
1da177e4 | 112 | #define MAX_DVB_DEMUX_USERS 10 |
dad4a730 AO |
113 | struct dvb_demux_filter *filter; |
114 | struct dvb_demux_feed *feed; | |
1da177e4 | 115 | |
dad4a730 | 116 | struct list_head frontend_list; |
1da177e4 | 117 | |
dad4a730 AO |
118 | struct dvb_demux_feed *pesfilter[DMX_TS_PES_OTHER]; |
119 | u16 pids[DMX_TS_PES_OTHER]; | |
120 | int playing; | |
121 | int recording; | |
1da177e4 LT |
122 | |
123 | #define DMX_MAX_PID 0x2000 | |
124 | struct list_head feed_list; | |
dad4a730 AO |
125 | u8 tsbuf[204]; |
126 | int tsbufp; | |
1da177e4 | 127 | |
3593cab5 | 128 | struct mutex mutex; |
1da177e4 LT |
129 | spinlock_t lock; |
130 | }; | |
131 | ||
1da177e4 | 132 | int dvb_dmx_init(struct dvb_demux *dvbdemux); |
93653467 | 133 | void dvb_dmx_release(struct dvb_demux *dvbdemux); |
dad4a730 AO |
134 | void dvb_dmx_swfilter_packets(struct dvb_demux *dvbdmx, const u8 *buf, |
135 | size_t count); | |
1da177e4 | 136 | void dvb_dmx_swfilter(struct dvb_demux *demux, const u8 *buf, size_t count); |
dad4a730 AO |
137 | void dvb_dmx_swfilter_204(struct dvb_demux *demux, const u8 *buf, |
138 | size_t count); | |
1da177e4 LT |
139 | |
140 | #endif /* _DVB_DEMUX_H_ */ |