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 int i_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");
133 /* Determine frontend device information and capabilities */
134 b_probe = config_GetInt( p_input, "probe" );
137 if ( ioctl_InfoFrontend(p_input, &frontend_info, u_adapter, u_device) < 0 )
139 msg_Err( p_input, "(access) cannot determine frontend info" );
143 else /* no frontend probing is done so use default border values. */
145 msg_Dbg( p_input, "using default values for frontend info" );
146 i_len = sizeof(FRONTEND);
147 if (snprintf(frontend, sizeof(FRONTEND), FRONTEND, u_adapter, u_device) >= i_len)
149 msg_Err( p_input, "snprintf() truncated string for FRONTEND" );
150 frontend[sizeof(FRONTEND)] = '\0';
152 strncpy(frontend_info.name, frontend, 128);
154 msg_Dbg(p_input, "method of access is %s", p_input->psz_access);
156 frontend_info.type = FE_QPSK;
157 if (strncmp( p_input->psz_access, "qpsk",4 ) ==0)
158 frontend_info.type = FE_QPSK;
159 else if (strncmp( p_input->psz_access, "cable",5 ) ==0)
160 frontend_info.type = FE_QAM;
161 else if (strncmp( p_input->psz_access, "terrestrial",11) ==0)
162 frontend_info.type = FE_OFDM;
164 frontend_info.frequency_max = u_lnb_lof2; /* in KHz, lnb_lof2 */
165 frontend_info.frequency_min = u_lnb_lof1; /* lnb_lof1 */
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 i_polarisation = 0; //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 i_polarisation = 1; //VLC_TRUE;
214 else if ((!strncmp( psz_parser_init, "A" ,
215 psz_parser - psz_parser_init ) ) ||
216 (!strncmp( psz_parser_init, "a" ,
217 psz_parser - psz_parser_init ) ) )
223 else if( !strncmp( psz_parser, "fec=",
227 (int)strtol( psz_parser + strlen( "fec=" ),
230 else if( !strncmp( psz_parser, "srate=",
231 strlen( "srate=" ) ) )
234 (unsigned int)strtol( psz_parser + strlen( "srate=" ),
237 else if( !strncmp( psz_parser, "program=",
238 strlen( "program=" ) ) )
240 val.i_int = (int)strtol( psz_parser + strlen( "program=" ),
242 var_Set( p_input, "program", val );
244 else if( !strncmp( psz_parser, "diseqc",
245 strlen( "disecq" ) ) )
247 psz_parser += strlen("disecq");
250 else if( !strncmp( psz_parser, "lnb-lof1=",
251 strlen( "lnb-lof1=" ) ) )
254 (unsigned int)strtol( psz_parser + strlen( "lnb-lof1=" ),
256 frontend_info.frequency_min = u_lnb_lof1; /* lnb_lof1 */
258 else if( !strncmp( psz_parser, "lnb-lof2=",
259 strlen( "lnb-lof2=" ) ) )
262 (unsigned int)strtol( psz_parser + strlen( "lnb-lof2=" ),
264 frontend_info.frequency_max = u_lnb_lof2; /* in KHz, lnb_lof2 */
266 else if( !strncmp( psz_parser, "lnb-slof=",
267 strlen( "lnb-slof=" ) ) )
270 (unsigned int)strtol( psz_parser + strlen( "lnb-slof=" ),
273 else if( !strncmp( psz_parser, "device=",
274 strlen( "device=" ) ) )
277 (unsigned int)strtol( psz_parser + strlen( "device=" ),
280 else if( !strncmp( psz_parser, "adapter=",
281 strlen( "adapter=" ) ) )
284 (unsigned int)strtol( psz_parser + strlen( "adapter=" ),
287 else if (!strncmp( psz_parser, "modulation=",
288 strlen( "modulation=" ) ) )
290 i_modulation = (int)strtol( psz_parser + strlen( "modulation=" ),
293 else if (!strncmp( psz_parser, "bandwidth=",
294 strlen( "bandwidth=" ) ) )
296 i_bandwidth = (int)strtol( psz_parser + strlen( "bandwidth=" ),
299 else if (!strncmp( psz_parser, "guard=",
300 strlen( "guard=" ) ) )
302 i_guard = (int)strtol( psz_parser + strlen( "guard=" ),
305 else if (!strncmp( psz_parser, "transmission=",
306 strlen( "transmission=" ) ) )
308 i_transmission = (int)strtol( psz_parser +
309 strlen( "transmission=" ),&psz_parser, 0 );
311 else if (!strncmp( psz_parser, "hierarchy=",
312 strlen( "hierarchy=" ) ) )
314 i_hierarchy = (int)strtol( psz_parser +
315 strlen( "hierarchy=" ),&psz_parser, 0 );
317 else if (!strncmp( psz_parser, "code-rate-HP=",
318 strlen( "code-rate-HP=" ) ) )
320 i_code_rate_HP = (int)strtol( psz_parser +
321 strlen( "code-rate-HP=" ),&psz_parser, 0 );
323 else if (!strncmp( psz_parser, "code-rate-LP=",
324 strlen( "code-rate-LP=" ) ) )
326 i_code_rate_LP = (int)strtol( psz_parser +
327 strlen( "code-rate-LP=" ),&psz_parser, 0 );
329 else if( !strncmp( psz_parser, "probe",
330 strlen( "probe" ) ) )
332 psz_parser += strlen("probe");
343 msg_Warn(p_input,"DVB Input syntax has changed, please see documentation for further informations");
344 u_freq = (unsigned int)i_test;
347 psz_parser = psz_next + 1;
348 i_polarisation = strtol( psz_parser, &psz_next, 10 );
351 psz_parser = psz_next + 1;
352 i_fec = (int)strtol( psz_parser, &psz_next, 10 );
355 psz_parser = psz_next + 1;
356 u_srate = (unsigned int)strtol( psz_parser, &psz_next, 10 );
362 /* Validating input values */
363 if ( ((u_freq) > frontend_info.frequency_max) ||
364 ((u_freq) < frontend_info.frequency_min) )
366 msg_Warn( p_input, "invalid frequency %d (KHz), using default one", u_freq );
367 u_freq = config_GetInt( p_input, "frequency" );
368 if ( ((u_freq) > frontend_info.frequency_max) ||
369 ((u_freq) < frontend_info.frequency_min) )
371 msg_Err( p_input, "invalid default frequency" );
376 /* Workaround for backwards compatibility */
377 if (strncmp( p_input->psz_access, "satellite", 9 ) ==0)
379 msg_Warn( p_input, "invalid symbol rate %d possibly specified in MHz, trying value *1000 KHz", u_freq );
383 if ( ((u_srate) > frontend_info.symbol_rate_max) ||
384 ((u_srate) < frontend_info.symbol_rate_min) )
386 msg_Warn( p_input, "invalid symbol rate, using default one" );
387 u_srate = config_GetInt( p_input, "symbol-rate"s );
388 if ( ((u_srate) > frontend_info.symbol_rate_max) ||
389 ((u_srate) < frontend_info.symbol_rate_min) )
391 msg_Err( p_input, "invalid default symbol rate" );
396 if( (i_fec > 9) || (i_fec < 1) )
398 msg_Warn( p_input, "invalid FEC, using default one" );
399 i_fec = config_GetInt( p_input, "fec" );
400 if( (i_fec > 9) || (i_fec < 1) )
402 msg_Err( p_input, "invalid default FEC" );
407 /* Setting frontend parameters for tuning the hardware */
408 msg_Dbg( p_input, "Trying to tune to channel ...");
409 switch( frontend_info.type )
411 /* DVB-S: satellite and budget cards (nova) */
413 fep.frequency = u_freq; /* KHz */
414 fep.inversion = dvb_DecodeInversion(p_input, i_polarisation);
415 fep.u.qpsk.symbol_rate = u_srate;
416 fep.u.qpsk.fec_inner = dvb_DecodeFEC(p_input, i_fec);
417 msg_Dbg( p_input, "DVB-S: satellite (QPSK) frontend %s found", frontend_info.name );
419 if (ioctl_SetQPSKFrontend (p_input, fep, i_polarisation,
420 u_lnb_lof1, u_lnb_lof2, u_lnb_slof,
421 u_adapter, u_device )<0)
423 msg_Err( p_input, "DVB-S: tuning failed" );
430 fep.frequency = u_freq; /* KHz */
431 fep.inversion = dvb_DecodeInversion(p_input, i_polarisation);
432 fep.u.qam.symbol_rate = u_srate;
433 fep.u.qam.fec_inner = dvb_DecodeFEC(p_input, i_fec);
434 fep.u.qam.modulation = dvb_DecodeModulation(p_input, i_modulation);
435 msg_Dbg( p_input, "DVB-C: cable (QAM) frontend %s found", frontend_info.name );
436 if (ioctl_SetQAMFrontend (p_input, fep, u_adapter, u_device )<0)
438 msg_Err( p_input, "DVB-C: tuning failed" );
445 fep.frequency = u_freq; /* KHz */
446 fep.inversion = dvb_DecodeInversion(p_input, i_polarisation);
447 fep.u.ofdm.bandwidth = dvb_DecodeBandwidth(p_input, i_bandwidth);
448 fep.u.ofdm.code_rate_HP = dvb_DecodeFEC(p_input, i_code_rate_HP);
449 fep.u.ofdm.code_rate_LP = dvb_DecodeFEC(p_input, i_code_rate_LP);
450 fep.u.ofdm.constellation = dvb_DecodeModulation(p_input, i_modulation);
451 fep.u.ofdm.transmission_mode = dvb_DecodeTransmission(p_input, i_transmission);
452 fep.u.ofdm.guard_interval = dvb_DecodeGuardInterval(p_input, i_guard);
453 fep.u.ofdm.hierarchy_information = dvb_DecodeHierarchy(p_input, i_hierarchy);
454 msg_Dbg( p_input, "DVB-T: terrestrial (OFDM) frontend %s found", frontend_info.name );
455 if (ioctl_SetOFDMFrontend (p_input, fep,u_adapter, u_device )<0)
457 msg_Err( p_input, "DVB-T: tuning failed" );
462 msg_Err( p_input, "Could not determine frontend type on %s", frontend_info.name );
465 msg_Dbg( p_input, "Tuning done.");
467 /* Initialise structure */
468 p_satellite = malloc( sizeof( input_socket_t ) );
470 if( p_satellite == NULL )
472 msg_Err( p_input, "out of memory" );
476 p_input->p_access_data = (void *)p_satellite;
478 /* Open the DVR device */
480 if (snprintf(dvr, sizeof(DVR), DVR, u_adapter, u_device) >= i_len)
482 msg_Err( p_input, "snprintf() truncated string for DVR" );
483 dvr[sizeof(DVR)] = '\0';
485 msg_Dbg( p_input, "opening DVR device '%s'", dvr );
487 if( (p_satellite->i_handle = open( dvr,
488 /*O_NONBLOCK | O_LARGEFILE*/0 )) == (-1) )
491 msg_Warn( p_input, "cannot open `%s' (%s)", dvr, strerror(errno) );
493 msg_Warn( p_input, "cannot open `%s'", dvr );
499 msg_Dbg( p_input, "setting filter on PAT" );
501 /* Set Filter on PAT packet */
502 if ( ioctl_SetDMXFilter(p_input, 0, &i_fd, 21, u_adapter, u_device ) < 0 )
505 msg_Err( p_input, "an error occured when setting filter on PAT (%s)", strerror(errno) );
507 msg_Err( p_input, "an error occured when setting filter on PAT" );
509 close( p_satellite->i_handle );
514 if( input_InitStream( p_input, sizeof( stream_ts_data_t ) ) == -1 )
516 msg_Err( p_input, "could not initialize stream structure" );
517 close( p_satellite->i_handle );
522 vlc_mutex_lock( &p_input->stream.stream_lock );
524 p_input->stream.b_pace_control = 1;
525 p_input->stream.b_seekable = 0;
526 p_input->stream.p_selected_area->i_tell = 0;
528 vlc_mutex_unlock( &p_input->stream.stream_lock );
530 p_input->i_mtu = SATELLITE_READ_ONCE * TS_PACKET_SIZE;
531 p_input->stream.i_method = INPUT_METHOD_SATELLITE;
536 /*****************************************************************************
537 * Close : Close the device
538 *****************************************************************************/
539 void E_(Close) ( vlc_object_t *p_this )
541 input_thread_t * p_input = (input_thread_t *)p_this;
542 input_socket_t * p_satellite;
543 unsigned int i_es_index;
545 if ( p_input->stream.p_selected_program )
547 for ( i_es_index = 1 ;
548 i_es_index < p_input->stream.p_selected_program->i_es_number;
551 #define p_es p_input->stream.p_selected_program->pp_es[i_es_index]
554 ioctl_UnsetDMXFilter(p_input, p_es->i_demux_fd );
560 p_satellite = (input_socket_t *)p_input;
561 close( p_satellite->i_handle );
564 /*****************************************************************************
565 * SatelliteRead: reads data from the satellite card
566 *****************************************************************************/
567 static ssize_t SatelliteRead( input_thread_t * p_input, byte_t * p_buffer,
570 input_socket_t * p_access_data = (input_socket_t *)p_input->p_access_data;
572 unsigned int u_adapter = 1;
573 unsigned int u_device = 0;
576 // Get adapter and device number to use for this dvb card
577 u_adapter = config_GetInt( p_input, "adapter" );
578 u_device = config_GetInt( p_input, "device" );
580 /* if not set, set filters to the PMTs */
581 for( i = 0; i < p_input->stream.i_pgrm_number; i++ )
583 if ( p_input->stream.pp_programs[i]->pp_es[0]->i_demux_fd == 0 )
585 ioctl_SetDMXFilter(p_input, p_input->stream.pp_programs[i]->pp_es[0]->i_id,
586 &p_input->stream.pp_programs[i]->pp_es[0]->i_demux_fd,
587 21, u_adapter, u_device );
591 i_ret = read( p_access_data->i_handle, p_buffer, i_len );
596 msg_Err( p_input, "read failed (%s)", strerror(errno) );
598 msg_Err( p_input, "read failed" );
605 /*****************************************************************************
606 * SatelliteSetArea : Does nothing
607 *****************************************************************************/
608 static int SatelliteSetArea( input_thread_t * p_input, input_area_t * p_area )
613 /*****************************************************************************
614 * SatelliteSetProgram : Sets the card filters according to the
616 * and makes the appropriate changes to stream structure.
617 *****************************************************************************/
618 int SatelliteSetProgram( input_thread_t * p_input,
619 pgrm_descriptor_t * p_new_prg )
621 unsigned int i_es_index;
623 unsigned int u_adapter = 1;
624 unsigned int u_device = 0;
625 unsigned int u_video_type = 1; /* default video type */
626 unsigned int u_audio_type = 2; /* default audio type */
628 /* Get adapter and device number to use for this dvb card */
629 u_adapter = config_GetInt( p_input, "adapter" );
630 u_device = config_GetInt( p_input, "device" );
632 if ( p_input->stream.p_selected_program )
634 for ( i_es_index = 1 ; /* 0 should be the PMT */
635 i_es_index < p_input->stream.p_selected_program->i_es_number ;
638 #define p_es p_input->stream.p_selected_program->pp_es[i_es_index]
641 input_UnselectES( p_input , p_es );
643 if ( p_es->i_demux_fd > 0)
645 ioctl_UnsetDMXFilter(p_input, p_es->i_demux_fd );
646 p_es->i_demux_fd = 0;
652 for (i_es_index = 1 ; i_es_index < p_new_prg->i_es_number ; i_es_index ++ )
654 #define p_es p_new_prg->pp_es[i_es_index]
655 switch( p_es->i_cat )
659 case MPEG2_MOTO_VIDEO_ES:
660 if ( input_SelectES( p_input , p_es ) == 0 )
662 ioctl_SetDMXFilter(p_input, p_es->i_id, &p_es->i_demux_fd, u_video_type,
663 u_adapter, u_device);
669 if ( input_SelectES( p_input , p_es ) == 0 )
671 ioctl_SetDMXFilter(p_input, p_es->i_id, &p_es->i_demux_fd, u_audio_type,
672 u_adapter, u_device);
673 input_SelectES( p_input , p_es );
678 ioctl_SetDMXFilter(p_input, p_es->i_id, &p_es->i_demux_fd, 21, u_adapter, u_device);
679 input_SelectES( p_input , p_es );
680 msg_Warn(p_input, "ES streamtype 0x%d found used as DMX_PES_OTHER !!",(int) p_es->i_cat);
686 p_input->stream.p_selected_program = p_new_prg;
688 /* Update the navigation variables without triggering a callback */
689 val.i_int = p_new_prg->i_number;
690 var_Change( p_input, "program", VLC_VAR_SETVALUE, &val, NULL );
695 /*****************************************************************************
696 * SatelliteSeek: does nothing (not a seekable stream
697 *****************************************************************************/
698 static void SatelliteSeek( input_thread_t * p_input, off_t i_off )