1 /* 2 * dmxdev.h 3 * 4 * Copyright (C) 2000 Ralph Metzler & Marcus 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 */ 18 19 #ifndef _DMXDEV_H_ 20 #define _DMXDEV_H_ 21 22 #include <linux/types.h> 23 #include <linux/spinlock.h> 24 #include <linux/kernel.h> 25 #include <linux/time.h> 26 #include <linux/timer.h> 27 #include <linux/wait.h> 28 #include <linux/fs.h> 29 #include <linux/string.h> 30 #include <linux/mutex.h> 31 #include <linux/slab.h> 32 33 #include <linux/dvb/dmx.h> 34 35 #include "dvbdev.h" 36 #include "demux.h" 37 #include "dvb_ringbuffer.h" 38 39 enum dmxdev_type { 40 DMXDEV_TYPE_NONE, 41 DMXDEV_TYPE_SEC, 42 DMXDEV_TYPE_PES, 43 }; 44 45 enum dmxdev_state { 46 DMXDEV_STATE_FREE, 47 DMXDEV_STATE_ALLOCATED, 48 DMXDEV_STATE_SET, 49 DMXDEV_STATE_GO, 50 DMXDEV_STATE_DONE, 51 DMXDEV_STATE_TIMEDOUT 52 }; 53 54 struct dmxdev_feed { 55 u16 pid; 56 struct dmx_ts_feed *ts; 57 struct list_head next; 58 }; 59 60 struct dmxdev_filter { 61 union { 62 struct dmx_section_filter *sec; 63 } filter; 64 65 union { 66 /* list of TS and PES feeds (struct dmxdev_feed) */ 67 struct list_head ts; 68 struct dmx_section_feed *sec; 69 } feed; 70 71 union { 72 struct dmx_sct_filter_params sec; 73 struct dmx_pes_filter_params pes; 74 } params; 75 76 enum dmxdev_type type; 77 enum dmxdev_state state; 78 struct dmxdev *dev; 79 struct dvb_ringbuffer buffer; 80 81 struct mutex mutex; 82 83 /* only for sections */ 84 struct timer_list timer; 85 int todo; 86 u8 secheader[3]; 87 }; 88 89 90 struct dmxdev { 91 struct dvb_device *dvbdev; 92 struct dvb_device *dvr_dvbdev; 93 94 struct dmxdev_filter *filter; 95 struct dmx_demux *demux; 96 97 int filternum; 98 int capabilities; 99 100 unsigned int exit:1; 101 #define DMXDEV_CAP_DUPLEX 1 102 struct dmx_frontend *dvr_orig_fe; 103 104 struct dvb_ringbuffer dvr_buffer; 105 #define DVR_BUFFER_SIZE (10*188*1024) 106 107 struct mutex mutex; 108 spinlock_t lock; 109 }; 110 111 112 int dvb_dmxdev_init(struct dmxdev *dmxdev, struct dvb_adapter *); 113 void dvb_dmxdev_release(struct dmxdev *dmxdev); 114 115 #endif /* _DMXDEV_H_ */ 116