| /* |
| * dmxdev.h |
| * |
| * Copyright (C) 2000 Ralph Metzler & Marcus Metzler |
| * for convergence integrated media GmbH |
| * |
| * Copyright (c) 2012-2013, The Linux Foundation. All rights reserved. |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public License |
| * as published by the Free Software Foundation; either version 2.1 |
| * of the License, or (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| * |
| */ |
| |
| #ifndef _DMXDEV_H_ |
| #define _DMXDEV_H_ |
| |
| #include <linux/types.h> |
| #include <linux/spinlock.h> |
| #include <linux/kernel.h> |
| #include <linux/timer.h> |
| #include <linux/wait.h> |
| #include <linux/fs.h> |
| #include <linux/string.h> |
| #include <linux/mutex.h> |
| #include <linux/slab.h> |
| #include <linux/kthread.h> |
| #include <linux/dvb/dmx.h> |
| |
| #include "dvbdev.h" |
| #include "demux.h" |
| #include "dvb_ringbuffer.h" |
| |
| enum dmxdev_type { |
| DMXDEV_TYPE_NONE, |
| DMXDEV_TYPE_SEC, |
| DMXDEV_TYPE_PES, |
| }; |
| |
| enum dmxdev_state { |
| DMXDEV_STATE_FREE, |
| DMXDEV_STATE_ALLOCATED, |
| DMXDEV_STATE_SET, |
| DMXDEV_STATE_GO, |
| DMXDEV_STATE_DONE, |
| DMXDEV_STATE_TIMEDOUT |
| }; |
| |
| struct dmxdev_feed { |
| u16 pid; |
| struct dmx_secure_mode sec_mode; |
| struct dmx_ts_feed *ts; |
| struct list_head next; |
| }; |
| |
| struct dmxdev_sec_feed { |
| struct dmx_secure_mode sec_mode; |
| struct dmx_section_feed *feed; |
| }; |
| |
| struct dmxdev_events_queue { |
| #define DMX_EVENT_QUEUE_SIZE 500 /* number of events */ |
| /* |
| * indices used to manage events queue. |
| * read_index advanced when relevent data is read |
| * from the buffer. |
| * notified_index is the index from which next events |
| * are returned. |
| * read_index <= notified_index <= write_index |
| * |
| * If user reads the data without getting the respective |
| * event first, the read/notified indices are updated |
| * automatically to reflect the actual data that exist |
| * in the buffer. |
| */ |
| u32 read_index; |
| u32 write_index; |
| u32 notified_index; |
| |
| /* Bytes read by user without having respective event in the queue */ |
| u32 bytes_read_no_event; |
| |
| /* internal tracking of PES and recording events */ |
| u32 current_event_data_size; |
| u32 current_event_start_offset; |
| |
| struct dmx_filter_event queue[DMX_EVENT_QUEUE_SIZE]; |
| }; |
| |
| struct dmxdev_filter { |
| union { |
| struct dmx_section_filter *sec; |
| } filter; |
| |
| union { |
| /* list of TS and PES feeds (struct dmxdev_feed) */ |
| struct list_head ts; |
| struct dmxdev_sec_feed sec; |
| } feed; |
| |
| union { |
| struct dmx_sct_filter_params sec; |
| struct dmx_pes_filter_params pes; |
| } params; |
| |
| struct dmxdev_events_queue events; |
| |
| enum dmxdev_type type; |
| enum dmxdev_state state; |
| struct dmxdev *dev; |
| struct dvb_ringbuffer buffer; |
| void *priv_buff_handle; |
| enum dmx_buffer_mode buffer_mode; |
| |
| struct mutex mutex; |
| |
| /* for recording output */ |
| enum dmx_tsp_format_t dmx_tsp_format; |
| u32 rec_chunk_size; |
| |
| /* only for sections */ |
| struct timer_list timer; |
| int todo; |
| u8 secheader[3]; |
| |
| /* Decoder buffer(s) related */ |
| struct dmx_decoder_buffers decoder_buffers; |
| }; |
| |
| struct dmxdev { |
| struct dvb_device *dvbdev; |
| struct dvb_device *dvr_dvbdev; |
| |
| struct dmxdev_filter *filter; |
| struct dmx_demux *demux; |
| |
| int filternum; |
| int capabilities; |
| #define DMXDEV_CAP_DUPLEX 0x01 |
| #define DMXDEV_CAP_PULL_MODE 0x02 |
| #define DMXDEV_CAP_INDEXING 0x04 |
| #define DMXDEV_CAP_EXTERNAL_BUFFS_ONLY 0x08 |
| |
| enum dmx_playback_mode_t playback_mode; |
| dmx_source_t source; |
| |
| unsigned int exit:1; |
| unsigned int dvr_in_exit:1; |
| unsigned int dvr_processing_input:1; |
| |
| struct dmx_frontend *dvr_orig_fe; |
| |
| struct dvb_ringbuffer dvr_buffer; |
| void *dvr_priv_buff_handle; |
| enum dmx_buffer_mode dvr_buffer_mode; |
| struct dmxdev_events_queue dvr_output_events; |
| struct dmxdev_filter *dvr_feed; |
| int dvr_feeds_count; |
| |
| struct dvb_ringbuffer dvr_input_buffer; |
| enum dmx_buffer_mode dvr_input_buffer_mode; |
| struct task_struct *dvr_input_thread; |
| |
| #define DVR_BUFFER_SIZE (10*188*1024) |
| |
| struct mutex mutex; |
| spinlock_t lock; |
| spinlock_t dvr_in_lock; |
| }; |
| |
| |
| int dvb_dmxdev_init(struct dmxdev *dmxdev, struct dvb_adapter *); |
| void dvb_dmxdev_release(struct dmxdev *dmxdev); |
| |
| #endif /* _DMXDEV_H_ */ |