1 /*****************************************************************************
2 * access.c: DVB card input v4l2 only
3 *****************************************************************************
4 * Copyright (C) 1998-2003 VideoLAN
6 * Authors: Johan Bilien <jobi@via.ecp.fr>
7 * Jean-Paul Saman <jpsaman@wxs.nl>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
22 *****************************************************************************/
25 /*****************************************************************************
27 *****************************************************************************/
32 #include <vlc/input.h>
34 #include "../../demux/mpeg/system.h"
41 #include <sys/types.h>
48 #ifdef STRNCASECMP_IN_STRINGS_H
52 /* DVB Card Drivers */
53 #include <linux/dvb/dmx.h>
54 #include <linux/dvb/frontend.h>
58 #define SATELLITE_READ_ONCE 3
60 /*****************************************************************************
62 *****************************************************************************/
63 static ssize_t SatelliteRead( input_thread_t * p_input, byte_t * p_buffer,
65 static int SatelliteSetArea ( input_thread_t *, input_area_t * );
66 static int SatelliteSetProgram ( input_thread_t *, pgrm_descriptor_t * );
67 static void SatelliteSeek ( input_thread_t *, off_t );
69 /*****************************************************************************
70 * Open: open the frontend device
71 *****************************************************************************/
72 int E_(Open) ( vlc_object_t *p_this )
74 struct dvb_frontend_info frontend_info;
75 struct dvb_frontend_parameters fep;
76 input_thread_t * p_input = (input_thread_t *)p_this;
77 input_socket_t * p_satellite;
81 unsigned int u_adapter = 1;
82 unsigned int u_device = 0;
83 unsigned int u_freq = 0;
84 unsigned int u_srate = 0;
85 unsigned int u_lnb_lof1;
86 unsigned int u_lnb_lof2;
87 unsigned int u_lnb_slof;
91 int i_transmission = 0;
93 vlc_bool_t b_polarisation = 0;
95 int i_code_rate_HP = 0;
96 int i_code_rate_LP = 0;
100 char frontend[] = FRONTEND;
106 /* parse the options passed in command line : */
107 psz_parser = strdup( p_input->psz_name );
114 // Get adapter and device number to use for this dvb card
115 u_adapter = config_GetInt( p_input, "adapter" );
116 u_device = config_GetInt( p_input, "device" );
118 /* Get antenna configuration options */
119 b_diseqc = config_GetInt( p_input, "diseqc" );
120 u_lnb_lof1 = config_GetInt( p_input, "lnb-lof1" );
121 u_lnb_lof2 = config_GetInt( p_input, "lnb-lof2" );
122 u_lnb_slof = config_GetInt( p_input, "lnb-slof" );
124 /*Get modulation parameters*/
125 i_bandwidth = config_GetInt( p_input, "bandwidth");
126 i_code_rate_HP = config_GetInt(p_input, "code-rate-hp");
127 i_code_rate_LP = config_GetInt(p_input, "code-rate-lp");
128 i_modulation = config_GetInt(p_input, "modulation");
129 i_transmission = config_GetInt(p_input, "transmission");
130 i_guard = config_GetInt(p_input, "guard");
131 i_hierarchy = config_GetInt(p_input, "hierarchy");
134 /* Determine frontend device information and capabilities */
135 b_probe = config_GetInt( p_input, "probe" );
138 if ( ioctl_InfoFrontend(p_input, &frontend_info, u_adapter, u_device) < 0 )
140 msg_Err( p_input, "(access) cannot determine frontend info" );
144 else /* no frontend probing is done so use default border values. */
146 msg_Dbg( p_input, "using default values for frontend info" );
147 i_len = sizeof(FRONTEND);
148 if (snprintf(frontend, sizeof(FRONTEND), FRONTEND, u_adapter, u_device) >= i_len)
150 msg_Err( p_input, "snprintf() truncated string for FRONTEND" );
151 frontend[sizeof(FRONTEND)] = '\0';
153 strncpy(frontend_info.name, frontend, 128);
155 msg_Dbg(p_input, "method of access is %s", p_input->psz_access);
157 frontend_info.type = FE_QPSK;
158 if (strncmp( p_input->psz_access, "qpsk",4 ) ==0)
159 frontend_info.type = FE_QPSK;
160 else if (strncmp( p_input->psz_access, "cable",5 ) ==0)
161 frontend_info.type = FE_QAM;
162 else if (strncmp( p_input->psz_access, "terrestrial",11) ==0)
163 frontend_info.type = FE_OFDM;
165 frontend_info.frequency_max = 12999000; /* KHz */
166 frontend_info.frequency_min = 9750000;
167 frontend_info.symbol_rate_max = 30000000;
168 frontend_info.symbol_rate_min = 1000000;
171 /* Register Callback functions */
172 p_input->pf_read = SatelliteRead;
173 p_input->pf_set_program = SatelliteSetProgram;
174 p_input->pf_set_area = SatelliteSetArea;
175 p_input->pf_seek = SatelliteSeek;
177 i_test = strtol( psz_parser, &psz_next, 10 );
178 if ( psz_next == psz_parser )
182 if( !strncmp( psz_parser, "frequency=",
183 strlen( "frequency=" ) ) )
186 strtol( psz_parser + strlen( "frequency=" ),
189 else if( !strncmp( psz_parser, "polarization=",
190 strlen( "polarization=" ) ) )
192 char *psz_parser_init;
193 psz_parser += strlen( "polarization=" );
194 psz_parser_init = psz_parser;
195 while ( *psz_parser != ':')
199 if ((!strncmp( psz_parser_init, "V" ,
200 psz_parser - psz_parser_init ) ) ||
201 (!strncmp( psz_parser_init, "V" ,
202 psz_parser - psz_parser_init ) ) )
204 b_polarisation = VLC_FALSE;
206 else if ((!strncmp( psz_parser_init, "H" ,
207 psz_parser - psz_parser_init ) ) ||
208 (!strncmp( psz_parser_init, "h" ,
209 psz_parser - psz_parser_init ) ) )
212 b_polarisation = VLC_TRUE;
215 else if( !strncmp( psz_parser, "fec=",
219 (int)strtol( psz_parser + strlen( "fec=" ),
222 else if( !strncmp( psz_parser, "srate=",
223 strlen( "srate=" ) ) )
226 (unsigned int)strtol( psz_parser + strlen( "srate=" ),
229 else if( !strncmp( psz_parser, "program=",
230 strlen( "program=" ) ) )
232 val.i_int = (int)strtol( psz_parser + strlen( "program=" ),
234 var_Set( p_input, "program", val );
236 else if( !strncmp( psz_parser, "diseqc",
237 strlen( "disecq" ) ) )
239 psz_parser += strlen("disecq");
242 else if( !strncmp( psz_parser, "lnb-lof1=",
243 strlen( "lnb-lof1=" ) ) )
246 (unsigned int)strtol( psz_parser + strlen( "lnb_lof1=" ),
249 else if( !strncmp( psz_parser, "lnb-lof2=",
250 strlen( "lnb-lof2=" ) ) )
253 (unsigned int)strtol( psz_parser + strlen( "lnb_lof2=" ),
256 else if( !strncmp( psz_parser, "lnb-slof=",
257 strlen( "lnb-slof=" ) ) )
260 (unsigned int)strtol( psz_parser + strlen( "lnb_slof=" ),
263 else if( !strncmp( psz_parser, "device=",
264 strlen( "device=" ) ) )
267 (unsigned int)strtol( psz_parser + strlen( "device=" ),
270 else if( !strncmp( psz_parser, "adapter=",
271 strlen( "adapter=" ) ) )
274 (unsigned int)strtol( psz_parser + strlen( "adapter=" ),
277 else if (!strncmp( psz_parser, "modulation=",
278 strlen( "modulation=" ) ) )
280 i_modulation = (int)strtol( psz_parser + strlen( "modulation=" ),
283 else if (!strncmp( psz_parser, "bandwidth=",
284 strlen( "bandwidth=" ) ) )
286 i_bandwidth = (int)strtol( psz_parser + strlen( "bandwidth=" ),
289 else if (!strncmp( psz_parser, "guard=",
290 strlen( "guard=" ) ) )
292 i_guard = (int)strtol( psz_parser + strlen( "guard=" ),
295 else if (!strncmp( psz_parser, "transmission=",
296 strlen( "transmission=" ) ) )
298 i_transmission = (int)strtol( psz_parser +
299 strlen( "transmission=" ),&psz_parser, 0 );
301 else if (!strncmp( psz_parser, "hierarchy=",
302 strlen( "hierarchy=" ) ) )
304 i_hierarchy = (int)strtol( psz_parser +
305 strlen( "hierarchy=" ),&psz_parser, 0 );
307 else if (!strncmp( psz_parser, "code-rate-HP=",
308 strlen( "code-rate-HP=" ) ) )
310 i_code_rate_HP = (int)strtol( psz_parser +
311 strlen( "code-rate-HP=" ),&psz_parser, 0 );
313 else if (!strncmp( psz_parser, "code-rate-LP=",
314 strlen( "code-rate-LP=" ) ) )
316 i_code_rate_LP = (int)strtol( psz_parser +
317 strlen( "code-rate-LP=" ),&psz_parser, 0 );
319 else if( !strncmp( psz_parser, "probe",
320 strlen( "probe" ) ) )
322 psz_parser += strlen("probe");
333 msg_Warn(p_input,"DVV Input syntax has changed, please see documentation for further informations");
334 u_freq = (unsigned int)i_test;
337 psz_parser = psz_next + 1;
338 b_polarisation = (vlc_bool_t)strtol( psz_parser, &psz_next, 10 );
341 psz_parser = psz_next + 1;
342 i_fec = (int)strtol( psz_parser, &psz_next, 10 );
345 psz_parser = psz_next + 1;
346 u_srate = (unsigned int)strtol( psz_parser, &psz_next, 10 );
352 /* Validating input values */
353 if ( ((u_freq) > frontend_info.frequency_max) ||
354 ((u_freq) < frontend_info.frequency_min) )
356 msg_Warn( p_input, "invalid frequency %d (KHz), using default one", u_freq );
357 u_freq = config_GetInt( p_input, "frequency" );
358 if ( ((u_freq) > frontend_info.frequency_max) ||
359 ((u_freq) < frontend_info.frequency_min) )
361 msg_Err( p_input, "invalid default frequency" );
366 /* Workaround for backwards compatibility */
367 if (strncmp( p_input->psz_access, "satellite", 9 ) ==0)
369 msg_Warn( p_input, "invalid symbol rate %d possibly specified in MHz, trying value *1000 KHz", u_freq );
373 if ( ((u_srate) > frontend_info.symbol_rate_max) ||
374 ((u_srate) < frontend_info.symbol_rate_min) )
376 msg_Warn( p_input, "invalid symbol rate, using default one" );
377 u_srate = config_GetInt( p_input, "symbol-rate" );
378 if ( ((u_srate) > frontend_info.symbol_rate_max) ||
379 ((u_srate) < frontend_info.symbol_rate_min) )
381 msg_Err( p_input, "invalid default symbol rate" );
386 if( b_polarisation && (b_polarisation != 1) )
388 msg_Warn( p_input, "invalid polarization, using default one" );
389 b_polarisation = config_GetInt( p_input, "polarization" );
390 if( b_polarisation && b_polarisation != 1 )
392 msg_Err( p_input, "invalid default polarization" );
397 if( (i_fec > 9) || (i_fec < 1) )
399 msg_Warn( p_input, "invalid FEC, using default one" );
400 i_fec = config_GetInt( p_input, "fec" );
401 if( (i_fec > 9) || (i_fec < 1) )
403 msg_Err( p_input, "invalid default FEC" );
407 /* Setting frontend parameters for tuning the hardware */
408 switch( frontend_info.type )
410 /* DVB-S: satellite and budget cards (nova) */
412 fep.frequency = u_freq; /* KHz */
413 fep.inversion = dvb_DecodeInversion(p_input, (int) b_polarisation);
414 fep.u.qpsk.symbol_rate = u_srate;
415 fep.u.qpsk.fec_inner = dvb_DecodeFEC(p_input, i_fec);
416 msg_Dbg( p_input, "satellite (QPSK) frontend found on %s", frontend_info.name );
421 fep.frequency = u_freq; /* KHz */
422 fep.inversion = dvb_DecodeInversion(p_input, (int) b_polarisation);
423 fep.u.qam.symbol_rate = u_srate;
424 fep.u.qam.fec_inner = dvb_DecodeFEC(p_input, i_fec);
425 fep.u.qam.modulation = dvb_DecodeModulation(p_input, i_modulation);
426 msg_Dbg( p_input, "cable (QAM) frontend found on %s", frontend_info.name );
431 fep.frequency = u_freq; /* KHz */
432 fep.inversion = dvb_DecodeInversion(p_input, (int) b_polarisation);
433 fep.u.ofdm.bandwidth = dvb_DecodeBandwidth(p_input, i_bandwidth);
434 fep.u.ofdm.code_rate_HP = dvb_DecodeFEC(p_input, i_code_rate_HP);
435 fep.u.ofdm.code_rate_LP = dvb_DecodeFEC(p_input, i_code_rate_LP);
436 fep.u.ofdm.constellation = dvb_DecodeModulation(p_input, i_modulation);
437 fep.u.ofdm.transmission_mode = dvb_DecodeTransmission(p_input, i_transmission);
438 fep.u.ofdm.guard_interval = dvb_DecodeGuardInterval(p_input, i_guard);
439 fep.u.ofdm.hierarchy_information = dvb_DecodeHierarchy(p_input, i_hierarchy);
440 msg_Dbg( p_input, "terrestrial (OFDM) frontend found on %s", frontend_info.name );
444 msg_Err( p_input, "Could not determine frontend type on %s", frontend_info.name );
448 /* Initialise structure */
449 p_satellite = malloc( sizeof( input_socket_t ) );
451 if( p_satellite == NULL )
453 msg_Err( p_input, "out of memory" );
457 p_input->p_access_data = (void *)p_satellite;
459 /* Open the DVR device */
461 if (snprintf(dvr, sizeof(DVR), DVR, u_adapter, u_device) >= i_len)
463 msg_Err( p_input, "snprintf() truncated string for DVR" );
464 dvr[sizeof(DVR)] = '\0';
466 msg_Dbg( p_input, "opening DVR device '%s'", dvr );
468 if( (p_satellite->i_handle = open( dvr,
469 /*O_NONBLOCK | O_LARGEFILE*/0 )) == (-1) )
472 msg_Warn( p_input, "cannot open `%s' (%s)", dvr, strerror(errno) );
474 msg_Warn( p_input, "cannot open `%s'", dvr );
480 /* Initialize the Satellite Card */
481 switch (ioctl_SetFrontend (p_input, fep, b_polarisation,
482 u_lnb_lof1, u_lnb_lof2, u_lnb_slof,
483 u_adapter, u_device ))
486 msg_Err( p_input, "frontend returned an unexpected event" );
487 close( p_satellite->i_handle );
491 msg_Err( p_input, "frontend returned no event" );
492 close( p_satellite->i_handle );
496 msg_Err( p_input, "frontend: timeout when polling for event" );
497 close( p_satellite->i_handle );
501 msg_Err( p_input, "an error occured when polling frontend device" );
502 close( p_satellite->i_handle );
506 msg_Err( p_input, "frontend returned a failure event" );
507 close( p_satellite->i_handle );
514 msg_Dbg( p_input, "setting filter on PAT" );
516 /* Set Filter on PAT packet */
517 if ( ioctl_SetDMXFilter(p_input, 0, &i_fd, 21, u_adapter, u_device ) < 0 )
520 msg_Err( p_input, "an error occured when setting filter on PAT (%s)", strerror(errno) );
522 msg_Err( p_input, "an error occured when setting filter on PAT" );
524 close( p_satellite->i_handle );
529 if( input_InitStream( p_input, sizeof( stream_ts_data_t ) ) == -1 )
531 msg_Err( p_input, "could not initialize stream structure" );
532 close( p_satellite->i_handle );
537 vlc_mutex_lock( &p_input->stream.stream_lock );
539 p_input->stream.b_pace_control = 1;
540 p_input->stream.b_seekable = 0;
541 p_input->stream.p_selected_area->i_tell = 0;
543 vlc_mutex_unlock( &p_input->stream.stream_lock );
545 p_input->i_mtu = SATELLITE_READ_ONCE * TS_PACKET_SIZE;
546 p_input->stream.i_method = INPUT_METHOD_SATELLITE;
551 /*****************************************************************************
552 * Close : Close the device
553 *****************************************************************************/
554 void E_(Close) ( vlc_object_t *p_this )
556 input_thread_t * p_input = (input_thread_t *)p_this;
557 input_socket_t * p_satellite;
558 unsigned int i_es_index;
560 if ( p_input->stream.p_selected_program )
562 for ( i_es_index = 1 ;
563 i_es_index < p_input->stream.p_selected_program->i_es_number;
566 #define p_es p_input->stream.p_selected_program->pp_es[i_es_index]
567 if ( p_es->p_decoder_fifo )
569 ioctl_UnsetDMXFilter(p_input, p_es->i_demux_fd );
575 p_satellite = (input_socket_t *)p_input;
576 close( p_satellite->i_handle );
579 /*****************************************************************************
580 * SatelliteRead: reads data from the satellite card
581 *****************************************************************************/
582 static ssize_t SatelliteRead( input_thread_t * p_input, byte_t * p_buffer,
585 input_socket_t * p_access_data = (input_socket_t *)p_input->p_access_data;
587 unsigned int u_adapter = 1;
588 unsigned int u_device = 0;
591 // Get adapter and device number to use for this dvb card
592 u_adapter = config_GetInt( p_input, "adapter" );
593 u_device = config_GetInt( p_input, "device" );
595 /* if not set, set filters to the PMTs */
596 for( i = 0; i < p_input->stream.i_pgrm_number; i++ )
598 if ( p_input->stream.pp_programs[i]->pp_es[0]->i_demux_fd == 0 )
600 ioctl_SetDMXFilter(p_input, p_input->stream.pp_programs[i]->pp_es[0]->i_id,
601 &p_input->stream.pp_programs[i]->pp_es[0]->i_demux_fd,
602 21, u_adapter, u_device );
606 i_ret = read( p_access_data->i_handle, p_buffer, i_len );
611 msg_Err( p_input, "read failed (%s)", strerror(errno) );
613 msg_Err( p_input, "read failed" );
620 /*****************************************************************************
621 * SatelliteSetArea : Does nothing
622 *****************************************************************************/
623 static int SatelliteSetArea( input_thread_t * p_input, input_area_t * p_area )
628 /*****************************************************************************
629 * SatelliteSetProgram : Sets the card filters according to the
631 * and makes the appropriate changes to stream structure.
632 *****************************************************************************/
633 int SatelliteSetProgram( input_thread_t * p_input,
634 pgrm_descriptor_t * p_new_prg )
636 unsigned int i_es_index;
638 unsigned int u_adapter = 1;
639 unsigned int u_device = 0;
640 unsigned int u_video_type = 1; /* default video type */
641 unsigned int u_audio_type = 2; /* default audio type */
643 /* Get adapter and device number to use for this dvb card */
644 u_adapter = config_GetInt( p_input, "adapter" );
645 u_device = config_GetInt( p_input, "device" );
647 if ( p_input->stream.p_selected_program )
649 for ( i_es_index = 1 ; /* 0 should be the PMT */
650 i_es_index < p_input->stream.p_selected_program->i_es_number ;
653 #define p_es p_input->stream.p_selected_program->pp_es[i_es_index]
654 if ( p_es->p_decoder_fifo )
656 input_UnselectES( p_input , p_es );
658 if ( p_es->i_demux_fd > 0)
660 ioctl_UnsetDMXFilter(p_input, p_es->i_demux_fd );
661 p_es->i_demux_fd = 0;
667 for (i_es_index = 1 ; i_es_index < p_new_prg->i_es_number ; i_es_index ++ )
669 #define p_es p_new_prg->pp_es[i_es_index]
670 switch( p_es->i_cat )
674 case MPEG2_MOTO_VIDEO_ES:
675 if ( input_SelectES( p_input , p_es ) == 0 )
677 ioctl_SetDMXFilter(p_input, p_es->i_id, &p_es->i_demux_fd, u_video_type,
678 u_adapter, u_device);
684 if ( input_SelectES( p_input , p_es ) == 0 )
686 ioctl_SetDMXFilter(p_input, p_es->i_id, &p_es->i_demux_fd, u_audio_type,
687 u_adapter, u_device);
688 input_SelectES( p_input , p_es );
693 ioctl_SetDMXFilter(p_input, p_es->i_id, &p_es->i_demux_fd, 21, u_adapter, u_device);
694 input_SelectES( p_input , p_es );
695 msg_Warn(p_input, "ES streamtype 0x%d found used as DMX_PES_OTHER !!",(int) p_es->i_cat);
701 p_input->stream.p_selected_program = p_new_prg;
703 /* Update the navigation variables without triggering a callback */
704 val.i_int = p_new_prg->i_number;
705 var_Change( p_input, "program", VLC_VAR_SETVALUE, &val, NULL );
710 /*****************************************************************************
711 * SatelliteSeek: does nothing (not a seekable stream
712 *****************************************************************************/
713 static void SatelliteSeek( input_thread_t * p_input, off_t i_off )