forked from gfto/dvblast
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dvb.c
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dvb.c
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/*****************************************************************************
* dvb.c: linux-dvb input for DVBlast
*****************************************************************************
* Copyright (C) 2008-2010 VideoLAN
*
* Authors: Christophe Massiot <massiot@via.ecp.fr>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 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 General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
#include "config.h"
#ifdef HAVE_DVB_SUPPORT
#include <stdlib.h>
#include <stdint.h>
#include <stdbool.h>
#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <sys/ioctl.h>
#include <sys/socket.h>
#include <sys/uio.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <poll.h>
#include <errno.h>
/* DVB Card Drivers */
#include <linux/dvb/version.h>
#include <linux/dvb/dmx.h>
#include <linux/dvb/frontend.h>
#include <linux/dvb/ca.h>
#include "dvblast.h"
#include "en50221.h"
#include "comm.h"
#include <bitstream/common.h>
/*****************************************************************************
* Local declarations
*****************************************************************************/
#define DVR_READ_TIMEOUT 30000000 /* 30 s */
#define CA_POLL_PERIOD 100000 /* 100 ms */
#define MAX_READ_ONCE 50
#define DVR_BUFFER_SIZE 40*188*1024 /* bytes */
static int i_frontend, i_dvr;
static fe_status_t i_last_status;
static mtime_t i_frontend_timeout;
static mtime_t i_last_packet = 0;
static mtime_t i_ca_next_event = 0;
static block_t *p_freelist = NULL;
/*****************************************************************************
* Local prototypes
*****************************************************************************/
static block_t *DVRRead( void );
static void FrontendPoll( void );
static void FrontendSet( bool b_reset );
/*****************************************************************************
* dvb_Open
*****************************************************************************/
void dvb_Open( void )
{
char psz_tmp[128];
msg_Dbg( NULL, "using linux-dvb API version %d.%d", DVB_API_VERSION, DVB_API_VERSION_MINOR );
i_wallclock = mdate();
sprintf( psz_tmp, "/dev/dvb/adapter%d/frontend%d", i_adapter, i_fenum );
if( (i_frontend = open(psz_tmp, O_RDWR | O_NONBLOCK)) < 0 )
{
msg_Err( NULL, "opening device %s failed (%s)", psz_tmp,
strerror(errno) );
exit(1);
}
FrontendSet(true);
sprintf( psz_tmp, "/dev/dvb/adapter%d/dvr%d", i_adapter, i_fenum );
if( (i_dvr = open(psz_tmp, O_RDONLY | O_NONBLOCK)) < 0 )
{
msg_Err( NULL, "opening device %s failed (%s)", psz_tmp,
strerror(errno) );
exit(1);
}
if ( ioctl( i_dvr, DMX_SET_BUFFER_SIZE, DVR_BUFFER_SIZE ) < 0 )
{
msg_Warn( NULL, "couldn't set %s buffer size (%s)", psz_tmp,
strerror(errno) );
}
en50221_Init();
i_ca_next_event = mdate() + CA_POLL_PERIOD;
}
/*****************************************************************************
* dvb_Reset
*****************************************************************************/
void dvb_Reset( void )
{
FrontendSet(true);
}
/*****************************************************************************
* dvb_Read
*****************************************************************************/
block_t *dvb_Read( mtime_t i_poll_timeout )
{
struct pollfd ufds[4];
int i_ret, i_nb_fd = 2;
block_t *p_blocks = NULL;
memset( ufds, 0, sizeof(ufds) );
ufds[0].fd = i_dvr;
ufds[0].events = POLLIN;
ufds[1].fd = i_frontend;
ufds[1].events = POLLERR | POLLPRI;
if ( i_comm_fd != -1 )
{
ufds[i_nb_fd].fd = i_comm_fd;
ufds[i_nb_fd].events = POLLIN;
i_nb_fd++;
}
if ( i_ca_handle && i_ca_type == CA_CI_LINK )
{
ufds[i_nb_fd].fd = i_ca_handle;
ufds[i_nb_fd].events = POLLIN;
i_nb_fd++;
}
i_ret = poll( ufds, i_nb_fd, (i_poll_timeout + 999) / 1000 );
i_wallclock = mdate();
if ( i_ret < 0 )
{
if( errno != EINTR )
msg_Err( NULL, "poll error: %s", strerror(errno) );
return NULL;
}
if ( ufds[1].revents )
FrontendPoll();
if ( ufds[0].revents )
{
p_blocks = DVRRead();
i_wallclock = mdate();
}
if ( p_blocks != NULL )
i_last_packet = i_wallclock;
else if ( !i_frontend_timeout
&& i_wallclock > i_last_packet + DVR_READ_TIMEOUT )
{
msg_Warn( NULL, "no DVR output, resetting" );
FrontendSet(false);
en50221_Reset();
}
if ( i_ca_handle && i_ca_type == CA_CI_LINK )
{
if ( ufds[i_nb_fd - 1].revents )
{
en50221_Read();
i_ca_next_event = i_wallclock + CA_POLL_PERIOD;
}
else if ( i_wallclock > i_ca_next_event )
{
en50221_Poll();
i_ca_next_event = i_wallclock + CA_POLL_PERIOD;
}
}
if ( i_frontend_timeout && i_wallclock > i_frontend_timeout )
{
if ( i_quit_timeout_duration )
{
msg_Err( NULL, "no lock" );
switch (i_print_type) {
case PRINT_XML:
printf("</TS>\n");
break;
default:
break;
}
exit(EXIT_STATUS_FRONTEND_TIMEOUT);
}
msg_Warn( NULL, "no lock, tuning again" );
FrontendSet(false);
}
if ( i_comm_fd != -1 && ufds[2].revents )
comm_Read();
return p_blocks;
}
/*****************************************************************************
* DVRRead
*****************************************************************************/
static block_t *DVRRead( void )
{
int i, i_len;
block_t *p_ts = p_freelist, **pp_current = &p_ts;
struct iovec p_iov[MAX_READ_ONCE];
for ( i = 0; i < MAX_READ_ONCE; i++ )
{
if ( (*pp_current) == NULL ) *pp_current = block_New();
p_iov[i].iov_base = (*pp_current)->p_ts;
p_iov[i].iov_len = TS_SIZE;
pp_current = &(*pp_current)->p_next;
}
if ( (i_len = readv(i_dvr, p_iov, MAX_READ_ONCE)) < 0 )
{
msg_Err( NULL, "couldn't read from DVR device (%s)",
strerror(errno) );
i_len = 0;
}
i_len /= TS_SIZE;
pp_current = &p_ts;
while ( i_len && *pp_current )
{
pp_current = &(*pp_current)->p_next;
i_len--;
}
p_freelist = *pp_current;
*pp_current = NULL;
return p_ts;
}
/*
* Demux
*/
/*****************************************************************************
* dvb_SetFilter : controls the demux to add a filter
*****************************************************************************/
int dvb_SetFilter( uint16_t i_pid )
{
struct dmx_pes_filter_params s_filter_params;
char psz_tmp[128];
int i_fd;
sprintf( psz_tmp, "/dev/dvb/adapter%d/demux%d", i_adapter, i_fenum );
if( (i_fd = open(psz_tmp, O_RDWR)) < 0 )
{
msg_Err( NULL, "DMXSetFilter: opening device failed (%s)",
strerror(errno) );
return -1;
}
s_filter_params.pid = i_pid;
s_filter_params.input = DMX_IN_FRONTEND;
s_filter_params.output = DMX_OUT_TS_TAP;
s_filter_params.flags = DMX_IMMEDIATE_START;
s_filter_params.pes_type = DMX_PES_OTHER;
if ( ioctl( i_fd, DMX_SET_PES_FILTER, &s_filter_params ) < 0 )
{
msg_Err( NULL, "failed setting filter on %d (%s)", i_pid,
strerror(errno) );
close( i_fd );
return -1;
}
msg_Dbg( NULL, "setting filter on PID %d", i_pid );
return i_fd;
}
/*****************************************************************************
* dvb_UnsetFilter : removes a filter
*****************************************************************************/
void dvb_UnsetFilter( int i_fd, uint16_t i_pid )
{
if ( ioctl( i_fd, DMX_STOP ) < 0 )
msg_Err( NULL, "DMX_STOP failed (%s)", strerror(errno) );
else
msg_Dbg( NULL, "unsetting filter on PID %d", i_pid );
close( i_fd );
}
/*
* Frontend
*/
/*****************************************************************************
* FrontendPoll : Poll for frontend events
*****************************************************************************/
static void FrontendPoll( void )
{
struct dvb_frontend_event event;
fe_status_t i_status, i_diff;
for( ;; )
{
int i_ret = ioctl( i_frontend, FE_GET_EVENT, &event );
if( i_ret < 0 )
{
if( errno == EWOULDBLOCK )
return; /* no more events */
msg_Err( NULL, "reading frontend event failed (%d) %s",
i_ret, strerror(errno) );
return;
}
i_status = event.status;
i_diff = i_status ^ i_last_status;
i_last_status = i_status;
{
#define IF_UP( x ) \
} \
if ( i_diff & (x) ) \
{ \
if ( i_status & (x) )
IF_UP( FE_HAS_SIGNAL )
msg_Dbg( NULL, "frontend has acquired signal" );
else
msg_Dbg( NULL, "frontend has lost signal" );
IF_UP( FE_HAS_CARRIER )
msg_Dbg( NULL, "frontend has acquired carrier" );
else
msg_Dbg( NULL, "frontend has lost carrier" );
IF_UP( FE_HAS_VITERBI )
msg_Dbg( NULL, "frontend has acquired stable FEC" );
else
msg_Dbg( NULL, "frontend has lost FEC" );
IF_UP( FE_HAS_SYNC )
msg_Dbg( NULL, "frontend has acquired sync" );
else
msg_Dbg( NULL, "frontend has lost sync" );
IF_UP( FE_HAS_LOCK )
{
int32_t i_value = 0;
msg_Info( NULL, "frontend has acquired lock" );
switch (i_print_type) {
case PRINT_XML:
printf("<STATUS type=\"lock\" status=\"1\" />\n");
break;
default:
printf("frontend has acquired lock\n" );
}
i_frontend_timeout = 0;
i_last_packet = i_wallclock;
if ( i_quit_timeout_duration && !i_quit_timeout )
i_quit_timeout = i_wallclock + i_quit_timeout_duration;
/* Read some statistics */
if( ioctl( i_frontend, FE_READ_BER, &i_value ) >= 0 )
msg_Dbg( NULL, "- Bit error rate: %d", i_value );
if( ioctl( i_frontend, FE_READ_SIGNAL_STRENGTH, &i_value ) >= 0 )
msg_Dbg( NULL, "- Signal strength: %d", i_value );
if( ioctl( i_frontend, FE_READ_SNR, &i_value ) >= 0 )
msg_Dbg( NULL, "- SNR: %d", i_value );
}
else
{
msg_Dbg( NULL, "frontend has lost lock" );
switch (i_print_type) {
case PRINT_XML:
printf("<STATUS type=\"lock\" status=\"0\"/>\n");
break;
default:
printf("frontend has lost lock\n" );
}
i_frontend_timeout = i_wallclock + i_frontend_timeout_duration;
}
IF_UP( FE_REINIT )
{
/* The frontend was reinited. */
msg_Warn( NULL, "reiniting frontend");
FrontendSet(true);
}
}
#undef IF_UP
}
}
static int FrontendDoDiseqc(void)
{
fe_sec_voltage_t fe_voltage;
fe_sec_tone_mode_t fe_tone;
int bis_frequency;
switch ( i_voltage )
{
case 0: fe_voltage = SEC_VOLTAGE_OFF; break;
default:
case 13: fe_voltage = SEC_VOLTAGE_13; break;
case 18: fe_voltage = SEC_VOLTAGE_18; break;
}
fe_tone = b_tone ? SEC_TONE_ON : SEC_TONE_OFF;
/* Automatic mode. */
if ( i_frequency >= 950000 && i_frequency <= 2150000 )
{
msg_Dbg( NULL, "frequency %d is in IF-band", i_frequency );
bis_frequency = i_frequency;
}
else if ( i_frequency >= 2500000 && i_frequency <= 2700000 )
{
msg_Dbg( NULL, "frequency %d is in S-band", i_frequency );
bis_frequency = 3650000 - i_frequency;
}
else if ( i_frequency >= 3400000 && i_frequency <= 4200000 )
{
msg_Dbg( NULL, "frequency %d is in C-band (lower)", i_frequency );
bis_frequency = 5150000 - i_frequency;
}
else if ( i_frequency >= 4500000 && i_frequency <= 4800000 )
{
msg_Dbg( NULL, "frequency %d is in C-band (higher)", i_frequency );
bis_frequency = 5950000 - i_frequency;
}
else if ( i_frequency >= 10700000 && i_frequency < 11700000 )
{
msg_Dbg( NULL, "frequency %d is in Ku-band (lower)",
i_frequency );
bis_frequency = i_frequency - 9750000;
}
else if ( i_frequency >= 11700000 && i_frequency <= 13250000 )
{
msg_Dbg( NULL, "frequency %d is in Ku-band (higher)",
i_frequency );
bis_frequency = i_frequency - 10600000;
fe_tone = SEC_TONE_ON;
}
else
{
msg_Err( NULL, "frequency %d is out of any known band",
i_frequency );
exit(1);
}
/* Switch off continuous tone. */
if ( ioctl( i_frontend, FE_SET_TONE, SEC_TONE_OFF ) < 0 )
{
msg_Err( NULL, "FE_SET_TONE failed (%s)", strerror(errno) );
exit(1);
}
/* Configure LNB voltage. */
if ( ioctl( i_frontend, FE_SET_VOLTAGE, fe_voltage ) < 0 )
{
msg_Err( NULL, "FE_SET_VOLTAGE failed (%s)", strerror(errno) );
exit(1);
}
/* Wait for at least 15 ms. Currently 100 ms because of broken drivers. */
msleep(100000);
/* Diseqc */
if ( i_satnum > 0 && i_satnum < 5 )
{
/* digital satellite equipment control,
* specification is available from http://www.eutelsat.com/
*/
/* DiSEqC 1.1 */
struct dvb_diseqc_master_cmd uncmd =
{ {0xe0, 0x10, 0x39, 0xf0, 0x00, 0x00}, 4};
/* DiSEqC 1.0 */
struct dvb_diseqc_master_cmd cmd =
{ {0xe0, 0x10, 0x38, 0xf0, 0x00, 0x00}, 4};
cmd.msg[3] = 0xf0 /* reset bits */
| ((i_satnum - 1) << 2)
| (fe_voltage == SEC_VOLTAGE_13 ? 0 : 2)
| (fe_tone == SEC_TONE_ON ? 1 : 0);
if ( i_uncommitted > 0 && i_uncommitted < 5 )
{
uncmd.msg[3] = 0xf0 /* reset bits */
| ((i_uncommitted - 1) << 2)
| (fe_voltage == SEC_VOLTAGE_13 ? 0 : 2)
| (fe_tone == SEC_TONE_ON ? 1 : 0);
if( ioctl( i_frontend, FE_DISEQC_SEND_MASTER_CMD, &uncmd ) < 0 )
{
msg_Err( NULL, "ioctl FE_SEND_MASTER_CMD failed (%s)",
strerror(errno) );
exit(1);
}
/* Repeat uncommitted command */
uncmd.msg[0] = 0xe1; /* framing: master, no reply, repeated TX */
if( ioctl( i_frontend, FE_DISEQC_SEND_MASTER_CMD, &uncmd ) < 0 )
{
msg_Err( NULL, "ioctl FE_SEND_MASTER_CMD failed (%s)",
strerror(errno) );
exit(1);
}
/* Pause 125 ms between uncommitted & committed diseqc commands. */
msleep(125000);
}
if( ioctl( i_frontend, FE_DISEQC_SEND_MASTER_CMD, &cmd ) < 0 )
{
msg_Err( NULL, "ioctl FE_SEND_MASTER_CMD failed (%s)",
strerror(errno) );
exit(1);
}
msleep(100000); /* Should be 15 ms. */
/* Do it again just to be sure. */
cmd.msg[0] = 0xe1; /* framing: master, no reply, repeated TX */
if( ioctl( i_frontend, FE_DISEQC_SEND_MASTER_CMD, &cmd ) < 0 )
{
msg_Err( NULL, "ioctl FE_SEND_MASTER_CMD failed (%s)",
strerror(errno) );
exit(1);
}
msleep(100000); /* Again, should be 15 ms */
}
else if ( i_satnum == 0xA || i_satnum == 0xB )
{
/* A or B simple diseqc ("diseqc-compatible") */
if( ioctl( i_frontend, FE_DISEQC_SEND_BURST,
i_satnum == 0xB ? SEC_MINI_B : SEC_MINI_A ) < 0 )
{
msg_Err( NULL, "ioctl FE_SEND_BURST failed (%s)", strerror(errno) );
exit(1);
}
msleep(100000); /* ... */
}
if ( ioctl( i_frontend, FE_SET_TONE, fe_tone ) < 0 )
{
msg_Err( NULL, "FE_SET_TONE failed (%s)", strerror(errno) );
exit(1);
}
msleep(100000); /* ... */
msg_Dbg( NULL, "configuring LNB to v=%d p=%d satnum=%x uncommitted=%x",
i_voltage, b_tone, i_satnum, i_uncommitted );
return bis_frequency;
}
#define DVBAPI_VERSION ((DVB_API_VERSION)*100+(DVB_API_VERSION_MINOR))
#if DVB_API_VERSION >= 5
/*****************************************************************************
* Helper functions for S2API
*****************************************************************************/
static fe_spectral_inversion_t GetInversion(void)
{
switch ( i_inversion )
{
case 0: return INVERSION_OFF;
case 1: return INVERSION_ON;
default:
msg_Warn( NULL, "invalid inversion %d", i_inversion );
case -1: return INVERSION_AUTO;
}
}
static fe_code_rate_t GetFEC(fe_caps_t fe_caps, int i_fec_value)
{
#define GET_FEC_INNER(fec, val) \
if ( (fe_caps & FE_CAN_##fec) && (i_fec_value == val) ) \
return fec;
GET_FEC_INNER(FEC_AUTO, 999);
GET_FEC_INNER(FEC_AUTO, -1);
if (i_fec_value == 0)
return FEC_NONE;
GET_FEC_INNER(FEC_1_2, 12);
GET_FEC_INNER(FEC_2_3, 23);
GET_FEC_INNER(FEC_3_4, 34);
if (i_fec_value == 35)
return FEC_3_5;
GET_FEC_INNER(FEC_4_5, 45);
GET_FEC_INNER(FEC_5_6, 56);
GET_FEC_INNER(FEC_6_7, 67);
GET_FEC_INNER(FEC_7_8, 78);
GET_FEC_INNER(FEC_8_9, 89);
if (i_fec_value == 910)
return FEC_9_10;
#undef GET_FEC_INNER
msg_Warn(NULL, "invalid FEC %d", i_fec_value );
return FEC_AUTO;
}
#define GetFECInner(caps) GetFEC(caps, i_fec)
#define GetFECLP(caps) GetFEC(caps, i_fec_lp)
static fe_modulation_t GetModulation(void)
{
#define GET_MODULATION( mod ) \
if ( !strcasecmp( psz_modulation, #mod ) ) \
return mod;
GET_MODULATION(QPSK);
GET_MODULATION(QAM_16);
GET_MODULATION(QAM_32);
GET_MODULATION(QAM_64);
GET_MODULATION(QAM_128);
GET_MODULATION(QAM_256);
GET_MODULATION(QAM_AUTO);
GET_MODULATION(VSB_8);
GET_MODULATION(VSB_16);
GET_MODULATION(PSK_8);
GET_MODULATION(APSK_16);
GET_MODULATION(APSK_32);
GET_MODULATION(DQPSK);
#undef GET_MODULATION
msg_Err( NULL, "invalid modulation %s", psz_modulation );
exit(1);
}
static fe_pilot_t GetPilot(void)
{
switch ( i_pilot )
{
case 0: return PILOT_OFF;
case 1: return PILOT_ON;
default:
msg_Warn( NULL, "invalid pilot %d", i_pilot );
case -1: return PILOT_AUTO;
}
}
static fe_rolloff_t GetRollOff(void)
{
switch ( i_rolloff )
{
case -1:
case 0: return ROLLOFF_AUTO;
case 20: return ROLLOFF_20;
case 25: return ROLLOFF_25;
default:
msg_Warn( NULL, "invalid rolloff %d", i_rolloff );
case 35: return ROLLOFF_35;
}
}
static fe_guard_interval_t GetGuard(void)
{
switch ( i_guard )
{
case 32: return GUARD_INTERVAL_1_32;
case 16: return GUARD_INTERVAL_1_16;
case 8: return GUARD_INTERVAL_1_8;
case 4: return GUARD_INTERVAL_1_4;
default:
msg_Warn( NULL, "invalid guard interval %d", i_guard );
case -1:
case 0: return GUARD_INTERVAL_AUTO;
}
}
static fe_transmit_mode_t GetTransmission(void)
{
switch ( i_transmission )
{
case 2: return TRANSMISSION_MODE_2K;
case 8: return TRANSMISSION_MODE_8K;
#ifdef TRANSMISSION_MODE_4K
case 4: return TRANSMISSION_MODE_4K;
#endif
default:
msg_Warn( NULL, "invalid tranmission mode %d", i_transmission );
case -1:
case 0: return TRANSMISSION_MODE_AUTO;
}
}
static fe_hierarchy_t GetHierarchy(void)
{
switch ( i_hierarchy )
{
case 0: return HIERARCHY_NONE;
case 1: return HIERARCHY_1;
case 2: return HIERARCHY_2;
case 4: return HIERARCHY_4;
default:
msg_Warn( NULL, "invalid intramission mode %d", i_transmission );
case -1: return HIERARCHY_AUTO;
}
}
/*****************************************************************************
* FrontendInfo : Print frontend info
*****************************************************************************/
static const char *GetFrontendTypeName( fe_type_t type )
{
switch(type)
{
case FE_QPSK: return "QPSK (DVB-S/S2)";
case FE_QAM: return "QAM (DVB-C)";
case FE_OFDM: return "OFDM (DVB-T)";
case FE_ATSC: return "ATSC";
default: return "unknown";
}
}
static void FrontendInfo( struct dvb_frontend_info info )
{
msg_Dbg( NULL, "Frontend \"%s\" type \"%s\" supports:",
info.name, GetFrontendTypeName(info.type) );
msg_Dbg( NULL, " frequency min: %d, max: %d, stepsize: %d, tolerance: %d",
info.frequency_min, info.frequency_max,
info.frequency_stepsize, info.frequency_tolerance );
msg_Dbg( NULL, " symbolrate min: %d, max: %d, tolerance: %d",
info.symbol_rate_min, info.symbol_rate_max, info.symbol_rate_tolerance);
msg_Dbg( NULL, " capabilities:" );
#define FRONTEND_INFO(caps,val,msg) \
if ( caps & val ) \
msg_Dbg( NULL, " %s", msg );
FRONTEND_INFO( info.caps, FE_IS_STUPID, "FE_IS_STUPID" )
FRONTEND_INFO( info.caps, FE_CAN_INVERSION_AUTO, "INVERSION_AUTO" )
FRONTEND_INFO( info.caps, FE_CAN_FEC_1_2, "FEC_1_2" )
FRONTEND_INFO( info.caps, FE_CAN_FEC_2_3, "FEC_2_3" )
FRONTEND_INFO( info.caps, FE_CAN_FEC_3_4, "FEC_3_4" )
FRONTEND_INFO( info.caps, FE_CAN_FEC_4_5, "FEC_4_5" )
FRONTEND_INFO( info.caps, FE_CAN_FEC_5_6, "FEC_5_6" )
FRONTEND_INFO( info.caps, FE_CAN_FEC_6_7, "FEC_6_7" )
FRONTEND_INFO( info.caps, FE_CAN_FEC_7_8, "FEC_7_8" )
FRONTEND_INFO( info.caps, FE_CAN_FEC_8_9, "FEC_8_9" )
FRONTEND_INFO( info.caps, FE_CAN_FEC_AUTO,"FEC_AUTO")
FRONTEND_INFO( info.caps, FE_CAN_QPSK, "QPSK" )
FRONTEND_INFO( info.caps, FE_CAN_QAM_16, "QAM_16" )
FRONTEND_INFO( info.caps, FE_CAN_QAM_32, "QAM_32" )
FRONTEND_INFO( info.caps, FE_CAN_QAM_64, "QAM_64" )
FRONTEND_INFO( info.caps, FE_CAN_QAM_128,"QAM_128")
FRONTEND_INFO( info.caps, FE_CAN_QAM_256,"QAM_256")
FRONTEND_INFO( info.caps, FE_CAN_QAM_AUTO,"QAM_AUTO" )
FRONTEND_INFO( info.caps, FE_CAN_TRANSMISSION_MODE_AUTO, "TRANSMISSION_MODE_AUTO" )
FRONTEND_INFO( info.caps, FE_CAN_BANDWIDTH_AUTO, "BANDWIDTH_AUTO" )
FRONTEND_INFO( info.caps, FE_CAN_GUARD_INTERVAL_AUTO, "GUARD_INTERVAL_AUTO" )
FRONTEND_INFO( info.caps, FE_CAN_HIERARCHY_AUTO, "HIERARCHY_AUTO" )
FRONTEND_INFO( info.caps, FE_CAN_8VSB, "8VSB" )
FRONTEND_INFO( info.caps, FE_CAN_16VSB,"16VSB" )
FRONTEND_INFO( info.caps, FE_HAS_EXTENDED_CAPS, "EXTENDED_CAPS" )
#if DVBAPI_VERSION >= 501
FRONTEND_INFO( info.caps, FE_CAN_2G_MODULATION, "2G_MODULATION" )
#endif
FRONTEND_INFO( info.caps, FE_NEEDS_BENDING, "NEEDS_BENDING" )
FRONTEND_INFO( info.caps, FE_CAN_RECOVER, "FE_CAN_RECOVER" )
FRONTEND_INFO( info.caps, FE_CAN_MUTE_TS, "FE_CAN_MUTE_TS" )
#undef FRONTEND_INFO
}
/*****************************************************************************
* FrontendSet
*****************************************************************************/
/* S2API */
static struct dtv_property dvbs_cmdargs[] = {
{ .cmd = DTV_FREQUENCY, .u.data = 0 },
{ .cmd = DTV_MODULATION, .u.data = QPSK },
{ .cmd = DTV_INVERSION, .u.data = INVERSION_AUTO },
{ .cmd = DTV_SYMBOL_RATE, .u.data = 27500000 },
{ .cmd = DTV_INNER_FEC, .u.data = FEC_AUTO },
{ .cmd = DTV_DELIVERY_SYSTEM, .u.data = SYS_DVBS },
{ .cmd = DTV_TUNE },
};
static struct dtv_properties dvbs_cmdseq = {
.num = sizeof(dvbs_cmdargs)/sizeof(struct dtv_property),
.props = dvbs_cmdargs
};
static struct dtv_property dvbs2_cmdargs[] = {
{ .cmd = DTV_FREQUENCY, .u.data = 0 },
{ .cmd = DTV_MODULATION, .u.data = PSK_8 },
{ .cmd = DTV_INVERSION, .u.data = INVERSION_AUTO },
{ .cmd = DTV_SYMBOL_RATE, .u.data = 27500000 },
{ .cmd = DTV_INNER_FEC, .u.data = FEC_AUTO },
{ .cmd = DTV_DELIVERY_SYSTEM, .u.data = SYS_DVBS2 },
{ .cmd = DTV_PILOT, .u.data = PILOT_AUTO },
{ .cmd = DTV_ROLLOFF, .u.data = ROLLOFF_AUTO },
{ .cmd = DTV_TUNE },
};
static struct dtv_properties dvbs2_cmdseq = {
.num = sizeof(dvbs2_cmdargs)/sizeof(struct dtv_property),
.props = dvbs2_cmdargs
};
static struct dtv_property dvbc_cmdargs[] = {
{ .cmd = DTV_FREQUENCY, .u.data = 0 },
{ .cmd = DTV_MODULATION, .u.data = QAM_AUTO },
{ .cmd = DTV_INVERSION, .u.data = INVERSION_AUTO },
{ .cmd = DTV_SYMBOL_RATE, .u.data = 27500000 },
{ .cmd = DTV_DELIVERY_SYSTEM, .u.data = SYS_DVBC_ANNEX_AC },
{ .cmd = DTV_TUNE },
};
static struct dtv_properties dvbc_cmdseq = {
.num = sizeof(dvbc_cmdargs)/sizeof(struct dtv_property),
.props = dvbc_cmdargs
};
static struct dtv_property dvbt_cmdargs[] = {
{ .cmd = DTV_FREQUENCY, .u.data = 0 },
{ .cmd = DTV_MODULATION, .u.data = QAM_AUTO },
{ .cmd = DTV_INVERSION, .u.data = INVERSION_AUTO },
{ .cmd = DTV_BANDWIDTH_HZ, .u.data = 8000000 },
{ .cmd = DTV_CODE_RATE_HP, .u.data = FEC_AUTO },
{ .cmd = DTV_CODE_RATE_LP, .u.data = FEC_AUTO },
{ .cmd = DTV_GUARD_INTERVAL, .u.data = GUARD_INTERVAL_AUTO },
{ .cmd = DTV_TRANSMISSION_MODE,.u.data = TRANSMISSION_MODE_AUTO },
{ .cmd = DTV_HIERARCHY, .u.data = HIERARCHY_AUTO },
{ .cmd = DTV_DELIVERY_SYSTEM, .u.data = SYS_DVBT },
{ .cmd = DTV_TUNE },
};
static struct dtv_properties dvbt_cmdseq = {
.num = sizeof(dvbt_cmdargs)/sizeof(struct dtv_property),
.props = dvbt_cmdargs
};
static struct dtv_property atsc_cmdargs[] = {
{ .cmd = DTV_FREQUENCY, .u.data = 0 },
{ .cmd = DTV_MODULATION, .u.data = QAM_AUTO },
{ .cmd = DTV_INVERSION, .u.data = INVERSION_AUTO },
{ .cmd = DTV_DELIVERY_SYSTEM, .u.data = SYS_ATSC },
{ .cmd = DTV_TUNE },
};
static struct dtv_properties atsc_cmdseq = {
.num = sizeof(atsc_cmdargs)/sizeof(struct dtv_property),
.props = atsc_cmdargs
};
#define FREQUENCY 0
#define MODULATION 1
#define INVERSION 2
#define SYMBOL_RATE 3
#define BANDWIDTH 3
#define FEC_INNER 4
#define FEC_LP 5
#define GUARD 6
#define PILOT 6
#define TRANSMISSION 7
#define ROLLOFF 7
#define HIERARCHY 8
struct dtv_property pclear[] = {
{ .cmd = DTV_CLEAR },
};
struct dtv_properties cmdclear = {
.num = 1,
.props = pclear
};
static void FrontendSet( bool b_init )
{
struct dvb_frontend_info info;
struct dtv_properties *p;
if ( ioctl( i_frontend, FE_GET_INFO, &info ) < 0 )
{
msg_Err( NULL, "FE_GET_INFO failed (%s)", strerror(errno) );
exit(1);
}
if ( b_init )
FrontendInfo( info );
/* Clear frontend commands */
if ( ioctl( i_frontend, FE_SET_PROPERTY, &cmdclear ) < 0 )
{
msg_Err( NULL, "Unable to clear frontend" );
exit(1);
}
switch ( info.type )
{
case FE_OFDM:
p = &dvbt_cmdseq;
p->props[FREQUENCY].u.data = i_frequency;
p->props[INVERSION].u.data = GetInversion();
if ( psz_modulation != NULL )
p->props[MODULATION].u.data = GetModulation();
p->props[BANDWIDTH].u.data = i_bandwidth * 1000000;
p->props[FEC_INNER].u.data = GetFECInner(info.caps);
p->props[FEC_LP].u.data = GetFECLP(info.caps);
p->props[GUARD].u.data = GetGuard();
p->props[TRANSMISSION].u.data = GetTransmission();
p->props[HIERARCHY].u.data = GetHierarchy();
msg_Dbg( NULL, "tuning OFDM frontend to f=%d bandwidth=%d inversion=%d fec_hp=%d fec_lp=%d hierarchy=%d modulation=%s guard=%d transmission=%d",
i_frequency, i_bandwidth, i_inversion, i_fec, i_fec_lp,
i_hierarchy,
psz_modulation == NULL ? "qam_auto" : psz_modulation,
i_guard, i_transmission );
break;
case FE_QAM:
p = &dvbc_cmdseq;
p->props[FREQUENCY].u.data = i_frequency;
p->props[INVERSION].u.data = GetInversion();
if ( psz_modulation != NULL )
p->props[MODULATION].u.data = GetModulation();
p->props[SYMBOL_RATE].u.data = i_srate;
msg_Dbg( NULL, "tuning QAM frontend to f=%d srate=%d inversion=%d modulation=%s",
i_frequency, i_srate, i_inversion,
psz_modulation == NULL ? "qam_auto" : psz_modulation );
break;
case FE_QPSK:
if ( psz_modulation != NULL )
{
p = &dvbs2_cmdseq;
p->props[MODULATION].u.data = GetModulation();
p->props[PILOT].u.data = GetPilot();
p->props[ROLLOFF].u.data = GetRollOff();
}
else
p = &dvbs_cmdseq;
p->props[INVERSION].u.data = GetInversion();
p->props[SYMBOL_RATE].u.data = i_srate;
p->props[FEC_INNER].u.data = GetFECInner(info.caps);
p->props[FREQUENCY].u.data = FrontendDoDiseqc();
msg_Dbg( NULL, "tuning QPSK frontend to f=%d srate=%d inversion=%d fec=%d rolloff=%d modulation=%s pilot=%d",
i_frequency, i_srate, i_inversion, i_fec, i_rolloff,
psz_modulation == NULL ? "legacy" : psz_modulation, i_pilot );
break;
case FE_ATSC:
p = &atsc_cmdseq;
p->props[FREQUENCY].u.data = i_frequency;
p->props[INVERSION].u.data = GetInversion();
if ( psz_modulation != NULL )
p->props[MODULATION].u.data = GetModulation();
msg_Dbg( NULL, "tuning ATSC frontend to f=%d inversion=%d modulation=%s",
i_frequency, i_inversion,
psz_modulation == NULL ? "qam_auto" : psz_modulation );
break;
default:
msg_Err( NULL, "unknown frontend type %d", info.type );
exit(1);
}
/* Empty the event queue */
for ( ; ; )
{
struct dvb_frontend_event event;
if ( ioctl( i_frontend, FE_GET_EVENT, &event ) < 0
&& errno == EWOULDBLOCK )
break;
}
/* Now send it all to the frontend device */
if ( ioctl( i_frontend, FE_SET_PROPERTY, p ) < 0 )
{
msg_Err( NULL, "setting frontend failed (%s)", strerror(errno) );
exit(1);
}
i_last_status = 0;