mirror of https://github.com/VDR4Arch/vdr.git
2442 lines
90 KiB
C
2442 lines
90 KiB
C
/*
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* dvbdevice.c: The DVB device tuner interface
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*
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* See the main source file 'vdr.c' for copyright information and
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* how to reach the author.
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*
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* $Id: dvbdevice.c 5.1 2021/06/09 09:12:25 kls Exp $
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*/
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#include "dvbdevice.h"
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#include <ctype.h>
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#include <errno.h>
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#include <limits.h>
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#include <linux/dvb/dmx.h>
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#include <linux/dvb/frontend.h>
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#include <sys/ioctl.h>
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#include <sys/mman.h>
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#include "channels.h"
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#include "diseqc.h"
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#include "dvbci.h"
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#include "menuitems.h"
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#include "sourceparams.h"
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static int DvbApiVersion = 0x0000; // the version of the DVB driver actually in use (will be determined by the first device created)
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#define DVBS_TUNE_TIMEOUT 9000 //ms
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#define DVBS_LOCK_TIMEOUT 2000 //ms
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#define DVBC_TUNE_TIMEOUT 9000 //ms
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#define DVBC_LOCK_TIMEOUT 2000 //ms
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#define DVBT_TUNE_TIMEOUT 9000 //ms
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#define DVBT_LOCK_TIMEOUT 2000 //ms
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#define ATSC_TUNE_TIMEOUT 9000 //ms
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#define ATSC_LOCK_TIMEOUT 2000 //ms
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#define SCR_RANDOM_TIMEOUT 500 // ms (add random value up to this when tuning SCR device to avoid lockups)
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#define TSBUFFERSIZE MEGABYTE(16)
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// --- DVB Parameter Maps ----------------------------------------------------
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const tDvbParameterMap PilotValues[] = {
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{ 0, PILOT_OFF, trNOOP("off") },
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{ 1, PILOT_ON, trNOOP("on") },
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{ 999, PILOT_AUTO, trNOOP("auto") },
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{ -1, 0, NULL }
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};
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const tDvbParameterMap InversionValues[] = {
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{ 0, INVERSION_OFF, trNOOP("off") },
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{ 1, INVERSION_ON, trNOOP("on") },
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{ 999, INVERSION_AUTO, trNOOP("auto") },
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{ -1, 0, NULL }
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};
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const tDvbParameterMap BandwidthValues[] = {
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{ 5, 5000000, "5 MHz" },
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{ 6, 6000000, "6 MHz" },
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{ 7, 7000000, "7 MHz" },
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{ 8, 8000000, "8 MHz" },
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{ 10, 10000000, "10 MHz" },
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{ 1712, 1712000, "1.712 MHz" },
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{ -1, 0, NULL }
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};
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const tDvbParameterMap CoderateValues[] = {
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{ 0, FEC_NONE, trNOOP("none") },
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{ 12, FEC_1_2, "1/2" },
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{ 23, FEC_2_3, "2/3" },
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{ 34, FEC_3_4, "3/4" },
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{ 35, FEC_3_5, "3/5" },
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{ 45, FEC_4_5, "4/5" },
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{ 56, FEC_5_6, "5/6" },
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{ 67, FEC_6_7, "6/7" },
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{ 78, FEC_7_8, "7/8" },
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{ 89, FEC_8_9, "8/9" },
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{ 910, FEC_9_10, "9/10" },
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{ 999, FEC_AUTO, trNOOP("auto") },
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{ -1, 0, NULL }
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};
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const tDvbParameterMap ModulationValues[] = {
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{ 16, QAM_16, "QAM16" },
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{ 32, QAM_32, "QAM32" },
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{ 64, QAM_64, "QAM64" },
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{ 128, QAM_128, "QAM128" },
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{ 256, QAM_256, "QAM256" },
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{ 2, QPSK, "QPSK" },
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{ 5, PSK_8, "8PSK" },
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{ 6, APSK_16, "16APSK" },
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{ 7, APSK_32, "32APSK" },
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{ 10, VSB_8, "VSB8" },
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{ 11, VSB_16, "VSB16" },
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{ 12, DQPSK, "DQPSK" },
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{ 999, QAM_AUTO, trNOOP("auto") },
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{ -1, 0, NULL }
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};
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#define DVB_SYSTEM_1 0 // see also nit.c
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#define DVB_SYSTEM_2 1
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const tDvbParameterMap SystemValuesSat[] = {
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{ 0, DVB_SYSTEM_1, "DVB-S" },
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{ 1, DVB_SYSTEM_2, "DVB-S2" },
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{ -1, 0, NULL }
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};
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const tDvbParameterMap SystemValuesTerr[] = {
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{ 0, DVB_SYSTEM_1, "DVB-T" },
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{ 1, DVB_SYSTEM_2, "DVB-T2" },
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{ -1, 0, NULL }
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};
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const tDvbParameterMap TransmissionValues[] = {
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{ 1, TRANSMISSION_MODE_1K, "1K" },
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{ 2, TRANSMISSION_MODE_2K, "2K" },
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{ 4, TRANSMISSION_MODE_4K, "4K" },
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{ 8, TRANSMISSION_MODE_8K, "8K" },
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{ 16, TRANSMISSION_MODE_16K, "16K" },
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{ 32, TRANSMISSION_MODE_32K, "32K" },
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{ 999, TRANSMISSION_MODE_AUTO, trNOOP("auto") },
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{ -1, 0, NULL }
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};
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const tDvbParameterMap GuardValues[] = {
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{ 4, GUARD_INTERVAL_1_4, "1/4" },
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{ 8, GUARD_INTERVAL_1_8, "1/8" },
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{ 16, GUARD_INTERVAL_1_16, "1/16" },
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{ 32, GUARD_INTERVAL_1_32, "1/32" },
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{ 128, GUARD_INTERVAL_1_128, "1/128" },
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{ 19128, GUARD_INTERVAL_19_128, "19/128" },
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{ 19256, GUARD_INTERVAL_19_256, "19/256" },
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{ 999, GUARD_INTERVAL_AUTO, trNOOP("auto") },
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{ -1, 0, NULL }
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};
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const tDvbParameterMap HierarchyValues[] = {
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{ 0, HIERARCHY_NONE, trNOOP("none") },
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{ 1, HIERARCHY_1, "1" },
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{ 2, HIERARCHY_2, "2" },
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{ 4, HIERARCHY_4, "4" },
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{ 999, HIERARCHY_AUTO, trNOOP("auto") },
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{ -1, 0, NULL }
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};
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const tDvbParameterMap RollOffValues[] = {
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{ 0, ROLLOFF_AUTO, trNOOP("auto") },
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{ 20, ROLLOFF_20, "0.20" },
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{ 25, ROLLOFF_25, "0.25" },
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{ 35, ROLLOFF_35, "0.35" },
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{ -1, 0, NULL }
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};
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int UserIndex(int Value, const tDvbParameterMap *Map)
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{
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const tDvbParameterMap *map = Map;
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while (map && map->userValue != -1) {
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if (map->userValue == Value)
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return map - Map;
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map++;
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}
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return -1;
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}
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int DriverIndex(int Value, const tDvbParameterMap *Map)
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{
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const tDvbParameterMap *map = Map;
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while (map && map->userValue != -1) {
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if (map->driverValue == Value)
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return map - Map;
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map++;
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}
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return -1;
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}
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int MapToUser(int Value, const tDvbParameterMap *Map, const char **String)
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{
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int n = DriverIndex(Value, Map);
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if (n >= 0) {
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if (String)
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*String = tr(Map[n].userString);
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return Map[n].userValue;
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}
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return -1;
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}
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const char *MapToUserString(int Value, const tDvbParameterMap *Map)
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{
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int n = DriverIndex(Value, Map);
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if (n >= 0)
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return Map[n].userString;
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return "???";
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}
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int MapToDriver(int Value, const tDvbParameterMap *Map)
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{
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int n = UserIndex(Value, Map);
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if (n >= 0)
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return Map[n].driverValue;
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return -1;
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}
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// --- cDvbTransponderParameters ---------------------------------------------
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cDvbTransponderParameters::cDvbTransponderParameters(const char *Parameters)
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{
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Parse(Parameters);
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}
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int cDvbTransponderParameters::PrintParameter(char *p, char Name, int Value) const
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{
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return Value >= 0 && Value != 999 ? sprintf(p, "%c%d", Name, Value) : 0;
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}
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cString cDvbTransponderParameters::ToString(char Type) const
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{
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#define ST(s) if (strchr(s, Type) && (strchr(s, '0' + system + 1) || strchr(s, '*')))
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char buffer[64];
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char *q = buffer;
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*q = 0;
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ST(" S *") q += sprintf(q, "%c", polarization);
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ST(" T*") q += PrintParameter(q, 'B', MapToUser(bandwidth, BandwidthValues));
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ST(" CST*") q += PrintParameter(q, 'C', MapToUser(coderateH, CoderateValues));
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ST(" T*") q += PrintParameter(q, 'D', MapToUser(coderateL, CoderateValues));
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ST(" T*") q += PrintParameter(q, 'G', MapToUser(guard, GuardValues));
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ST("ACST*") q += PrintParameter(q, 'I', MapToUser(inversion, InversionValues));
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ST("ACST*") q += PrintParameter(q, 'M', MapToUser(modulation, ModulationValues));
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ST(" S 2") q += PrintParameter(q, 'N', MapToUser(pilot, PilotValues));
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ST(" S 2") q += PrintParameter(q, 'O', MapToUser(rollOff, RollOffValues));
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ST(" ST2") q += PrintParameter(q, 'P', streamId);
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ST(" T2") q += PrintParameter(q, 'Q', t2systemId);
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ST(" ST*") q += PrintParameter(q, 'S', MapToUser(system, SystemValuesSat)); // we only need the numerical value, so Sat or Terr doesn't matter
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ST(" T*") q += PrintParameter(q, 'T', MapToUser(transmission, TransmissionValues));
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ST(" T2") q += PrintParameter(q, 'X', sisoMiso);
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ST(" T*") q += PrintParameter(q, 'Y', MapToUser(hierarchy, HierarchyValues));
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return buffer;
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}
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const char *cDvbTransponderParameters::ParseParameter(const char *s, int &Value, const tDvbParameterMap *Map)
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{
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if (*++s) {
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char *p = NULL;
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errno = 0;
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int n = strtol(s, &p, 10);
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if (!errno && p != s) {
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Value = Map ? MapToDriver(n, Map) : n;
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if (Value >= 0)
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return p;
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}
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}
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esyslog("ERROR: invalid value for parameter '%c'", *(s - 1));
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return NULL;
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}
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bool cDvbTransponderParameters::Parse(const char *s)
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{
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polarization = 0;
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inversion = INVERSION_AUTO;
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bandwidth = 8000000;
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coderateH = FEC_AUTO;
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coderateL = FEC_AUTO;
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modulation = QPSK;
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system = DVB_SYSTEM_1;
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transmission = TRANSMISSION_MODE_AUTO;
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guard = GUARD_INTERVAL_AUTO;
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hierarchy = HIERARCHY_AUTO;
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rollOff = ROLLOFF_AUTO;
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streamId = 0;
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t2systemId = 0;
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sisoMiso = 0;
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pilot = PILOT_AUTO;
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while (s && *s) {
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switch (toupper(*s)) {
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case 'B': s = ParseParameter(s, bandwidth, BandwidthValues); break;
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case 'C': s = ParseParameter(s, coderateH, CoderateValues); break;
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case 'D': s = ParseParameter(s, coderateL, CoderateValues); break;
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case 'G': s = ParseParameter(s, guard, GuardValues); break;
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case 'H': polarization = 'H'; s++; break;
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case 'I': s = ParseParameter(s, inversion, InversionValues); break;
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case 'L': polarization = 'L'; s++; break;
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case 'M': s = ParseParameter(s, modulation, ModulationValues); break;
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case 'N': s = ParseParameter(s, pilot, PilotValues); break;
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case 'O': s = ParseParameter(s, rollOff, RollOffValues); break;
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case 'P': s = ParseParameter(s, streamId); break;
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case 'Q': s = ParseParameter(s, t2systemId); break;
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case 'R': polarization = 'R'; s++; break;
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case 'S': s = ParseParameter(s, system, SystemValuesSat); break; // we only need the numerical value, so Sat or Terr doesn't matter
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case 'T': s = ParseParameter(s, transmission, TransmissionValues); break;
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case 'V': polarization = 'V'; s++; break;
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case 'X': s = ParseParameter(s, sisoMiso); break;
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case 'Y': s = ParseParameter(s, hierarchy, HierarchyValues); break;
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default: esyslog("ERROR: unknown parameter key '%c'", *s);
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return false;
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}
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}
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return true;
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}
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// --- cDvbFrontend ----------------------------------------------------------
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const char *DeliverySystemNames[] = {
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"???",
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"DVB-C",
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"DVB-C",
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"DVB-T",
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"DSS",
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"DVB-S",
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"DVB-S2",
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"DVB-H",
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"ISDBT",
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"ISDBS",
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"ISDBC",
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"ATSC",
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"ATSCMH",
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"DTMB",
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"CMMB",
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"DAB",
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"DVB-T2",
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"TURBO",
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"DVB-C",
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"DVB-C2",
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NULL
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};
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static const int DeliverySystemNamesMax = sizeof(DeliverySystemNames) / sizeof(DeliverySystemNames[0]) - 2; // -1 to get the maximum allowed index & -1 for the NULL => -2
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static const char *GetDeliverySystemName(int Index)
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{
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if (Index > DeliverySystemNamesMax)
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Index = 0;
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return DeliverySystemNames[Index];
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};
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#define MAXFRONTENDCMDS 16
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#define SETCMD(c, d) { Props[CmdSeq.num].cmd = (c);\
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Props[CmdSeq.num].u.data = (d);\
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if (CmdSeq.num++ > MAXFRONTENDCMDS) {\
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esyslog("ERROR: too many tuning commands on frontend %d/%d", adapter, frontend);\
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return false;\
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}\
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}
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class cDvbFrontend {
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private:
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int adapter, frontend;
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int fd_frontend;
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uint32_t subsystemId;
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dvb_frontend_info frontendInfo;
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cVector<int> deliverySystems;
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int numModulations;
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bool QueryDeliverySystems(void);
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public:
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cDvbFrontend(int Adapter, int Frontend);
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~cDvbFrontend();
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int Open(void);
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void Close(void);
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const char *FrontendName(void) { return frontendInfo.name; }
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bool ProvidesDeliverySystem(int DeliverySystem) const;
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bool ProvidesModulation(int System, int StreamId, int Modulation) const;
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int NumDeliverySystems(void) const { return deliverySystems.Size(); }
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int NumModulations(void) const { return numModulations; }
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uint32_t SubsystemId(void) const { return subsystemId; }
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};
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cDvbFrontend::cDvbFrontend(int Adapter, int Frontend)
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{
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adapter = Adapter;
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frontend = Frontend;
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fd_frontend = -1;
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subsystemId = cDvbDeviceProbe::GetSubsystemId(adapter, frontend);
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memset(&frontendInfo, 0, sizeof(frontendInfo));
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strn0cpy(frontendInfo.name, "???", sizeof(frontendInfo.name));
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numModulations = 0;
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Open();
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QueryDeliverySystems();
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Close();
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}
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cDvbFrontend::~cDvbFrontend()
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{
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Close();
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}
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int cDvbFrontend::Open(void)
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{
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Close();
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fd_frontend = DvbOpen(DEV_DVB_FRONTEND, adapter, frontend, O_RDWR | O_NONBLOCK, true);
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return fd_frontend;
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}
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void cDvbFrontend::Close(void)
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{
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if (fd_frontend >= 0) {
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if (close(fd_frontend) != 0)
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esyslog("ERROR: frontend %d/%d", adapter, frontend);
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fd_frontend = -1;
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}
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}
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bool cDvbFrontend::ProvidesDeliverySystem(int DeliverySystem) const
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{
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for (int i = 0; i < deliverySystems.Size(); i++) {
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if (deliverySystems[i] == DeliverySystem)
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return true;
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}
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return false;
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}
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bool cDvbFrontend::ProvidesModulation(int System, int StreamId, int Modulation) const
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{
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if (StreamId != 0 && !(frontendInfo.caps & FE_CAN_MULTISTREAM))
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return false;
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if (Modulation == QPSK && !(frontendInfo.caps & FE_CAN_QPSK) ||
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Modulation == QAM_16 && !(frontendInfo.caps & FE_CAN_QAM_16) ||
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Modulation == QAM_32 && !(frontendInfo.caps & FE_CAN_QAM_32) ||
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Modulation == QAM_64 && !(frontendInfo.caps & FE_CAN_QAM_64) ||
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Modulation == QAM_128 && !(frontendInfo.caps & FE_CAN_QAM_128) ||
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Modulation == QAM_256 && !(frontendInfo.caps & FE_CAN_QAM_256) ||
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Modulation == QAM_AUTO && !(frontendInfo.caps & FE_CAN_QAM_AUTO) ||
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Modulation == VSB_8 && !(frontendInfo.caps & FE_CAN_8VSB) ||
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Modulation == VSB_16 && !(frontendInfo.caps & FE_CAN_16VSB) ||
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Modulation == PSK_8 && !(frontendInfo.caps & FE_CAN_TURBO_FEC) && System == SYS_DVBS) // "turbo fec" is a non standard FEC used by North American broadcasters - this is a best guess to de
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return false;
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return true;
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}
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bool cDvbFrontend::QueryDeliverySystems(void)
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{
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deliverySystems.Clear();
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numModulations = 0;
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if (ioctl(fd_frontend, FE_GET_INFO, &frontendInfo) < 0) {
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LOG_ERROR;
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return false;
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}
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dtv_property Props[1];
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dtv_properties CmdSeq;
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// Determine the version of the running DVB API:
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if (!DvbApiVersion) {
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memset(&Props, 0, sizeof(Props));
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memset(&CmdSeq, 0, sizeof(CmdSeq));
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CmdSeq.props = Props;
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SETCMD(DTV_API_VERSION, 0);
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if (ioctl(fd_frontend, FE_GET_PROPERTY, &CmdSeq) != 0) {
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LOG_ERROR;
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return false;
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}
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DvbApiVersion = Props[0].u.data;
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isyslog("DVB API version is 0x%04X (VDR was built with 0x%04X)", DvbApiVersion, DVBAPIVERSION);
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}
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// Determine the types of delivery systems this device provides:
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bool LegacyMode = true;
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if (DvbApiVersion >= 0x0505) {
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memset(&Props, 0, sizeof(Props));
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memset(&CmdSeq, 0, sizeof(CmdSeq));
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CmdSeq.props = Props;
|
|
SETCMD(DTV_ENUM_DELSYS, 0);
|
|
int Result = ioctl(fd_frontend, FE_GET_PROPERTY, &CmdSeq);
|
|
if (Result == 0) {
|
|
for (uint i = 0; i < Props[0].u.buffer.len; i++) {
|
|
// activate this line to simulate a multi-frontend device if you only have a single-frontend device with DVB-S and DVB-S2:
|
|
//if (frontend == 0 && Props[0].u.buffer.data[i] != SYS_DVBS || frontend == 1 && Props[0].u.buffer.data[i] != SYS_DVBS2)
|
|
deliverySystems.Append(Props[0].u.buffer.data[i]);
|
|
}
|
|
LegacyMode = false;
|
|
}
|
|
else {
|
|
esyslog("ERROR: can't query delivery systems on frontend %d/%d - falling back to legacy mode", adapter, frontend);
|
|
}
|
|
}
|
|
if (LegacyMode) {
|
|
// Legacy mode (DVB-API < 5.5):
|
|
switch (frontendInfo.type) {
|
|
case FE_QPSK: deliverySystems.Append(SYS_DVBS);
|
|
if (frontendInfo.caps & FE_CAN_2G_MODULATION)
|
|
deliverySystems.Append(SYS_DVBS2);
|
|
break;
|
|
case FE_OFDM: deliverySystems.Append(SYS_DVBT);
|
|
if (frontendInfo.caps & FE_CAN_2G_MODULATION)
|
|
deliverySystems.Append(SYS_DVBT2);
|
|
break;
|
|
case FE_QAM: deliverySystems.Append(SYS_DVBC_ANNEX_AC); break;
|
|
case FE_ATSC: deliverySystems.Append(SYS_ATSC); break;
|
|
default: esyslog("ERROR: unknown frontend type %d on frontend %d/%d", frontendInfo.type, adapter, frontend);
|
|
}
|
|
}
|
|
if (deliverySystems.Size() > 0) {
|
|
cString ds("");
|
|
for (int i = 0; i < deliverySystems.Size(); i++)
|
|
ds = cString::sprintf("%s%s%s", *ds, i ? "," : "", GetDeliverySystemName(deliverySystems[i]));
|
|
cString ms("");
|
|
if (frontendInfo.caps & FE_CAN_QPSK) { numModulations++; ms = cString::sprintf("%s%s%s", *ms, **ms ? "," : "", MapToUserString(QPSK, ModulationValues)); }
|
|
if (frontendInfo.caps & FE_CAN_QAM_16) { numModulations++; ms = cString::sprintf("%s%s%s", *ms, **ms ? "," : "", MapToUserString(QAM_16, ModulationValues)); }
|
|
if (frontendInfo.caps & FE_CAN_QAM_32) { numModulations++; ms = cString::sprintf("%s%s%s", *ms, **ms ? "," : "", MapToUserString(QAM_32, ModulationValues)); }
|
|
if (frontendInfo.caps & FE_CAN_QAM_64) { numModulations++; ms = cString::sprintf("%s%s%s", *ms, **ms ? "," : "", MapToUserString(QAM_64, ModulationValues)); }
|
|
if (frontendInfo.caps & FE_CAN_QAM_128) { numModulations++; ms = cString::sprintf("%s%s%s", *ms, **ms ? "," : "", MapToUserString(QAM_128, ModulationValues)); }
|
|
if (frontendInfo.caps & FE_CAN_QAM_256) { numModulations++; ms = cString::sprintf("%s%s%s", *ms, **ms ? "," : "", MapToUserString(QAM_256, ModulationValues)); }
|
|
if (frontendInfo.caps & FE_CAN_8VSB) { numModulations++; ms = cString::sprintf("%s%s%s", *ms, **ms ? "," : "", MapToUserString(VSB_8, ModulationValues)); }
|
|
if (frontendInfo.caps & FE_CAN_16VSB) { numModulations++; ms = cString::sprintf("%s%s%s", *ms, **ms ? "," : "", MapToUserString(VSB_16, ModulationValues)); }
|
|
if (frontendInfo.caps & FE_CAN_TURBO_FEC) { numModulations++; ms = cString::sprintf("%s%s%s", *ms, **ms ? "," : "", "TURBO_FEC"); }
|
|
if (!**ms)
|
|
ms = "unknown modulations";
|
|
isyslog("frontend %d/%d provides %s with %s (\"%s\")", adapter, frontend, *ds, *ms, frontendInfo.name);
|
|
return true;
|
|
}
|
|
else
|
|
esyslog("ERROR: frontend %d/%d doesn't provide any delivery systems", adapter, frontend);
|
|
return false;
|
|
}
|
|
|
|
// --- cDvbTuner -------------------------------------------------------------
|
|
|
|
#define TUNER_POLL_TIMEOUT 10 // ms
|
|
|
|
static int GetRequiredDeliverySystem(const cChannel *Channel, const cDvbTransponderParameters *Dtp)
|
|
{
|
|
int ds = SYS_UNDEFINED;
|
|
if (Channel->IsAtsc())
|
|
ds = SYS_ATSC;
|
|
else if (Channel->IsCable())
|
|
ds = SYS_DVBC_ANNEX_AC;
|
|
else if (Channel->IsSat())
|
|
ds = Dtp->System() == DVB_SYSTEM_1 ? SYS_DVBS : SYS_DVBS2;
|
|
else if (Channel->IsTerr())
|
|
ds = Dtp->System() == DVB_SYSTEM_1 ? SYS_DVBT : SYS_DVBT2;
|
|
else
|
|
esyslog("ERROR: can't determine frontend type for channel %d (%s)", Channel->Number(), Channel->Name());
|
|
return ds;
|
|
}
|
|
|
|
class cDvbTuner : public cThread {
|
|
private:
|
|
static cMutex bondMutex;
|
|
enum eTunerStatus { tsIdle, tsSet, tsPositioning, tsTuned, tsLocked };
|
|
int frontendType;
|
|
const cDvbDevice *device;
|
|
mutable int fd_frontend;
|
|
int adapter;
|
|
mutable int frontend;
|
|
cVector<cDvbFrontend *> dvbFrontends;
|
|
mutable cDvbFrontend *dvbFrontend;
|
|
int numDeliverySystems;
|
|
int numModulations;
|
|
int tuneTimeout;
|
|
int lockTimeout;
|
|
time_t lastTimeoutReport;
|
|
mutable uint32_t lastUncValue;
|
|
mutable uint32_t lastUncDelta;
|
|
mutable time_t lastUncChange;
|
|
cChannel channel;
|
|
const cDiseqc *lastDiseqc;
|
|
int diseqcOffset;
|
|
int lastSource;
|
|
cPositioner *positioner;
|
|
const cScr *scr;
|
|
bool lnbPowerTurnedOn;
|
|
eTunerStatus tunerStatus;
|
|
mutable cMutex mutex;
|
|
cCondVar locked;
|
|
cCondVar newSet;
|
|
cDvbTuner *bondedTuner;
|
|
bool bondedMaster;
|
|
cString GetBondingParams(const cChannel *Channel = NULL) const;
|
|
cDvbTuner *GetBondedMaster(void);
|
|
bool IsBondedMaster(void) const { return !bondedTuner || bondedMaster; }
|
|
void ClearEventQueue(void) const;
|
|
bool GetFrontendStatus(fe_status_t &Status) const;
|
|
cPositioner *GetPositioner(void);
|
|
void ExecuteDiseqc(const cDiseqc *Diseqc, int *Frequency);
|
|
void ResetToneAndVoltage(void);
|
|
bool SetFrontend(void);
|
|
virtual void Action(void);
|
|
public:
|
|
cDvbTuner(const cDvbDevice *Device, int Adapter, int Frontend);
|
|
virtual ~cDvbTuner();
|
|
bool ProvidesDeliverySystem(int DeliverySystem) const;
|
|
bool ProvidesModulation(int System, int StreamId, int Modulation) const;
|
|
bool ProvidesFrontend(const cChannel *Channel, bool Activate = false) const;
|
|
int Frontend(void) const { return frontend; }
|
|
int FrontendType(void) const { return frontendType; }
|
|
const char *FrontendName(void) { return dvbFrontend->FrontendName(); }
|
|
int NumProvidedSystems(void) const { return numDeliverySystems + numModulations; }
|
|
bool Bond(cDvbTuner *Tuner);
|
|
void UnBond(void);
|
|
bool BondingOk(const cChannel *Channel, bool ConsiderOccupied = false) const;
|
|
const cChannel *GetTransponder(void) const { return &channel; }
|
|
uint32_t SubsystemId(void) const { return dvbFrontend->SubsystemId(); }
|
|
bool IsTunedTo(const cChannel *Channel) const;
|
|
void SetChannel(const cChannel *Channel);
|
|
bool Locked(int TimeoutMs = 0);
|
|
const cPositioner *Positioner(void) const { return positioner; }
|
|
bool GetSignalStats(int &Valid, double *Strength = NULL, double *Cnr = NULL, double *BerPre = NULL, double *BerPost = NULL, double *Per = NULL, int *Status = NULL) const;
|
|
int GetSignalStrength(void) const;
|
|
int GetSignalQuality(void) const;
|
|
};
|
|
|
|
cMutex cDvbTuner::bondMutex;
|
|
|
|
cDvbTuner::cDvbTuner(const cDvbDevice *Device, int Adapter, int Frontend)
|
|
{
|
|
frontendType = SYS_UNDEFINED;
|
|
device = Device;
|
|
fd_frontend = -1;
|
|
adapter = Adapter;
|
|
frontend = Frontend;
|
|
dvbFrontend = NULL;
|
|
tuneTimeout = 0;
|
|
lockTimeout = 0;
|
|
lastTimeoutReport = 0;
|
|
lastUncValue = 0;
|
|
lastUncDelta = 0;
|
|
lastUncChange = 0;
|
|
lastDiseqc = NULL;
|
|
diseqcOffset = 0;
|
|
lastSource = 0;
|
|
positioner = NULL;
|
|
scr = NULL;
|
|
lnbPowerTurnedOn = false;
|
|
tunerStatus = tsIdle;
|
|
bondedTuner = NULL;
|
|
bondedMaster = false;
|
|
cDvbFrontend *fe = new cDvbFrontend(adapter, frontend);
|
|
dvbFrontends.Append(fe);
|
|
numDeliverySystems = fe->NumDeliverySystems();
|
|
numModulations = fe->NumModulations();
|
|
cString FrontendNumbers = cString::sprintf("%d", frontend);
|
|
// Check for multiple frontends:
|
|
if (frontend == 0) {
|
|
for (int i = 1; ; i++) {
|
|
if (access(DvbName(DEV_DVB_FRONTEND, adapter, i), F_OK) == 0) {
|
|
if (access(DvbName(DEV_DVB_DEMUX, adapter, i), F_OK) != 0) {
|
|
fe = new cDvbFrontend(adapter, i);
|
|
dvbFrontends.Append(fe);
|
|
numDeliverySystems += fe->NumDeliverySystems();
|
|
//numModulations += fe->NumModulations(); // looks like in multi frontend devices all frontends report the same modulations
|
|
FrontendNumbers = cString::sprintf("%s+%d", *FrontendNumbers, i);
|
|
}
|
|
}
|
|
else
|
|
break;
|
|
}
|
|
}
|
|
// Open default frontend:
|
|
dvbFrontend = dvbFrontends[0];
|
|
fd_frontend = dvbFrontend->Open();
|
|
SetDescription("frontend %d/%s tuner", adapter, *FrontendNumbers);
|
|
Start();
|
|
}
|
|
|
|
cDvbTuner::~cDvbTuner()
|
|
{
|
|
tunerStatus = tsIdle;
|
|
newSet.Broadcast();
|
|
locked.Broadcast();
|
|
Cancel(3);
|
|
UnBond();
|
|
/* looks like this irritates the SCR switch, so let's leave it out for now
|
|
if (lastDiseqc && lastDiseqc->IsScr()) {
|
|
unsigned int Frequency = 0;
|
|
ExecuteDiseqc(lastDiseqc, &Frequency);
|
|
}
|
|
*/
|
|
for (int i = 0; i < dvbFrontends.Size(); i++)
|
|
delete dvbFrontends[i];
|
|
}
|
|
|
|
bool cDvbTuner::ProvidesDeliverySystem(int DeliverySystem) const
|
|
{
|
|
for (int i = 0; i < dvbFrontends.Size(); i++) {
|
|
if (dvbFrontends[i]->ProvidesDeliverySystem(DeliverySystem))
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
bool cDvbTuner::ProvidesModulation(int System, int StreamId, int Modulation) const
|
|
{
|
|
for (int i = 0; i < dvbFrontends.Size(); i++) {
|
|
if (dvbFrontends[i]->ProvidesModulation(System, StreamId, Modulation))
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
bool cDvbTuner::ProvidesFrontend(const cChannel *Channel, bool Activate) const
|
|
{
|
|
cDvbTransponderParameters dtp(Channel->Parameters());
|
|
int DeliverySystem = GetRequiredDeliverySystem(Channel, &dtp);
|
|
for (int i = 0; i < dvbFrontends.Size(); i++) {
|
|
if (dvbFrontends[i]->ProvidesDeliverySystem(DeliverySystem) && dvbFrontends[i]->ProvidesModulation(dtp.System(), dtp.StreamId(), dtp.Modulation())) {
|
|
if (Activate && dvbFrontend != dvbFrontends[i]) {
|
|
cMutexLock MutexLock(&mutex);
|
|
dvbFrontend->Close();
|
|
dvbFrontend = dvbFrontends[i];
|
|
fd_frontend = dvbFrontend->Open();
|
|
frontend = i;
|
|
dsyslog("using frontend %d/%d", adapter, frontend);
|
|
lastUncValue = 0;
|
|
lastUncDelta = 0;
|
|
lastUncChange = 0;
|
|
}
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
bool cDvbTuner::Bond(cDvbTuner *Tuner)
|
|
{
|
|
cMutexLock MutexLock(&bondMutex);
|
|
if (!bondedTuner) {
|
|
ResetToneAndVoltage();
|
|
bondedMaster = false; // makes sure we don't disturb an existing master
|
|
bondedTuner = Tuner->bondedTuner ? Tuner->bondedTuner : Tuner;
|
|
Tuner->bondedTuner = this;
|
|
dsyslog("tuner %d/%d bonded with tuner %d/%d", adapter, frontend, bondedTuner->adapter, bondedTuner->frontend);
|
|
return true;
|
|
}
|
|
else
|
|
esyslog("ERROR: tuner %d/%d already bonded with tuner %d/%d, can't bond with tuner %d/%d", adapter, frontend, bondedTuner->adapter, bondedTuner->frontend, Tuner->adapter, Tuner->frontend);
|
|
return false;
|
|
}
|
|
|
|
void cDvbTuner::UnBond(void)
|
|
{
|
|
cMutexLock MutexLock(&bondMutex);
|
|
if (cDvbTuner *t = bondedTuner) {
|
|
dsyslog("tuner %d/%d unbonded from tuner %d/%d", adapter, frontend, bondedTuner->adapter, bondedTuner->frontend);
|
|
while (t->bondedTuner != this)
|
|
t = t->bondedTuner;
|
|
if (t == bondedTuner)
|
|
t->bondedTuner = NULL;
|
|
else
|
|
t->bondedTuner = bondedTuner;
|
|
bondedMaster = false; // another one will automatically become master whenever necessary
|
|
bondedTuner = NULL;
|
|
}
|
|
}
|
|
|
|
cString cDvbTuner::GetBondingParams(const cChannel *Channel) const
|
|
{
|
|
if (!Channel)
|
|
Channel = &channel;
|
|
cDvbTransponderParameters dtp(Channel->Parameters());
|
|
if (Setup.DiSEqC) {
|
|
if (const cDiseqc *diseqc = Diseqcs.Get(device->DeviceNumber() + 1, Channel->Source(), Channel->Frequency(), dtp.Polarization(), NULL))
|
|
return diseqc->Commands();
|
|
}
|
|
else {
|
|
bool ToneOff = Channel->Frequency() < Setup.LnbSLOF;
|
|
bool VoltOff = dtp.Polarization() == 'V' || dtp.Polarization() == 'R';
|
|
return cString::sprintf("%c %c", ToneOff ? 't' : 'T', VoltOff ? 'v' : 'V');
|
|
}
|
|
return "";
|
|
}
|
|
|
|
bool cDvbTuner::BondingOk(const cChannel *Channel, bool ConsiderOccupied) const
|
|
{
|
|
cMutexLock MutexLock(&bondMutex);
|
|
if (cDvbTuner *t = bondedTuner) {
|
|
cString BondingParams = GetBondingParams(Channel);
|
|
do {
|
|
if (t->device->Priority() > IDLEPRIORITY || ConsiderOccupied && t->device->Occupied()) {
|
|
if (strcmp(BondingParams, t->GetBondedMaster()->GetBondingParams()) != 0)
|
|
return false;
|
|
}
|
|
t = t->bondedTuner;
|
|
} while (t != bondedTuner);
|
|
}
|
|
return true;
|
|
}
|
|
|
|
cDvbTuner *cDvbTuner::GetBondedMaster(void)
|
|
{
|
|
if (!bondedTuner)
|
|
return this; // an unbonded tuner is always "master"
|
|
cMutexLock MutexLock(&bondMutex);
|
|
if (bondedMaster)
|
|
return this;
|
|
// This tuner is bonded, but it's not the master, so let's see if there is a master at all:
|
|
if (cDvbTuner *t = bondedTuner) {
|
|
while (t != this) {
|
|
if (t->bondedMaster)
|
|
return t;
|
|
t = t->bondedTuner;
|
|
}
|
|
}
|
|
// None of the other bonded tuners is master, so make this one the master:
|
|
bondedMaster = true;
|
|
dsyslog("tuner %d/%d is now bonded master", adapter, frontend);
|
|
return this;
|
|
}
|
|
|
|
bool cDvbTuner::IsTunedTo(const cChannel *Channel) const
|
|
{
|
|
if (tunerStatus == tsIdle)
|
|
return false; // not tuned to
|
|
if (channel.Source() != Channel->Source() || channel.Transponder() != Channel->Transponder() || channel.Srate() != Channel->Srate())
|
|
return false; // sufficient mismatch
|
|
// Polarization is already checked as part of the Transponder.
|
|
return strcmp(channel.Parameters(), Channel->Parameters()) == 0;
|
|
}
|
|
|
|
void cDvbTuner::SetChannel(const cChannel *Channel)
|
|
{
|
|
if (Channel) {
|
|
if (bondedTuner) {
|
|
cMutexLock MutexLock(&bondMutex);
|
|
cDvbTuner *BondedMaster = GetBondedMaster();
|
|
if (BondedMaster == this) {
|
|
if (strcmp(GetBondingParams(Channel), GetBondingParams()) != 0) {
|
|
// switching to a completely different band, so set all others to idle:
|
|
for (cDvbTuner *t = bondedTuner; t && t != this; t = t->bondedTuner)
|
|
t->SetChannel(NULL);
|
|
}
|
|
}
|
|
else if (strcmp(GetBondingParams(Channel), BondedMaster->GetBondingParams()) != 0)
|
|
BondedMaster->SetChannel(Channel);
|
|
}
|
|
cMutexLock MutexLock(&mutex);
|
|
if (!IsTunedTo(Channel))
|
|
tunerStatus = tsSet;
|
|
diseqcOffset = 0;
|
|
channel = *Channel;
|
|
lastTimeoutReport = 0;
|
|
newSet.Broadcast();
|
|
}
|
|
else {
|
|
cMutexLock MutexLock(&mutex);
|
|
tunerStatus = tsIdle;
|
|
ResetToneAndVoltage();
|
|
}
|
|
if (bondedTuner && device->IsPrimaryDevice())
|
|
cDevice::PrimaryDevice()->DelLivePids(); // 'device' is const, so we must do it this way
|
|
}
|
|
|
|
bool cDvbTuner::Locked(int TimeoutMs)
|
|
{
|
|
bool isLocked = (tunerStatus >= tsLocked);
|
|
if (isLocked || !TimeoutMs)
|
|
return isLocked;
|
|
|
|
cMutexLock MutexLock(&mutex);
|
|
if (TimeoutMs && tunerStatus < tsLocked)
|
|
locked.TimedWait(mutex, TimeoutMs);
|
|
return tunerStatus >= tsLocked;
|
|
}
|
|
|
|
void cDvbTuner::ClearEventQueue(void) const
|
|
{
|
|
cPoller Poller(fd_frontend);
|
|
if (Poller.Poll(TUNER_POLL_TIMEOUT)) {
|
|
dvb_frontend_event Event;
|
|
while (ioctl(fd_frontend, FE_GET_EVENT, &Event) == 0)
|
|
; // just to clear the event queue - we'll read the actual status below
|
|
}
|
|
}
|
|
|
|
bool cDvbTuner::GetFrontendStatus(fe_status_t &Status) const
|
|
{
|
|
ClearEventQueue();
|
|
Status = (fe_status_t)0; // initialize here to fix buggy drivers
|
|
while (1) {
|
|
if (ioctl(fd_frontend, FE_READ_STATUS, &Status) != -1)
|
|
return true;
|
|
if (errno != EINTR)
|
|
break;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
//#define DEBUG_SIGNALSTATS
|
|
//#define DEBUG_SIGNALSTRENGTH
|
|
//#define DEBUG_SIGNALQUALITY
|
|
|
|
bool cDvbTuner::GetSignalStats(int &Valid, double *Strength, double *Cnr, double *BerPre, double *BerPost, double *Per, int *Status) const
|
|
{
|
|
ClearEventQueue();
|
|
fe_status_t FeStatus = (fe_status_t)0; // initialize here to fix buggy drivers
|
|
dtv_property Props[MAXFRONTENDCMDS];
|
|
dtv_properties CmdSeq;
|
|
memset(&Props, 0, sizeof(Props));
|
|
memset(&CmdSeq, 0, sizeof(CmdSeq));
|
|
CmdSeq.props = Props;
|
|
Valid = DTV_STAT_VALID_NONE;
|
|
if (ioctl(fd_frontend, FE_READ_STATUS, &FeStatus) != 0) {
|
|
esyslog("ERROR: frontend %d/%d: %m (%s:%d)", adapter, frontend, __FILE__, __LINE__);
|
|
return false;
|
|
}
|
|
if (Status) {
|
|
*Status = DTV_STAT_HAS_NONE;
|
|
if (FeStatus & FE_HAS_SIGNAL) *Status |= DTV_STAT_HAS_SIGNAL;
|
|
if (FeStatus & FE_HAS_CARRIER) *Status |= DTV_STAT_HAS_CARRIER;
|
|
if (FeStatus & FE_HAS_VITERBI) *Status |= DTV_STAT_HAS_VITERBI;
|
|
if (FeStatus & FE_HAS_SYNC) *Status |= DTV_STAT_HAS_SYNC;
|
|
if (FeStatus & FE_HAS_LOCK) *Status |= DTV_STAT_HAS_LOCK;
|
|
Valid |= DTV_STAT_VALID_STATUS;
|
|
}
|
|
if (Strength) SETCMD(DTV_STAT_SIGNAL_STRENGTH, 0);
|
|
if (Cnr) SETCMD(DTV_STAT_CNR, 0);
|
|
if (BerPre) { SETCMD(DTV_STAT_PRE_ERROR_BIT_COUNT, 0);
|
|
SETCMD(DTV_STAT_PRE_TOTAL_BIT_COUNT, 0); }
|
|
if (BerPost) { SETCMD(DTV_STAT_POST_ERROR_BIT_COUNT, 0);
|
|
SETCMD(DTV_STAT_POST_TOTAL_BIT_COUNT, 0); }
|
|
if (Per) { SETCMD(DTV_STAT_ERROR_BLOCK_COUNT, 0);
|
|
SETCMD(DTV_STAT_TOTAL_BLOCK_COUNT, 0); }
|
|
if (CmdSeq.num && ioctl(fd_frontend, FE_GET_PROPERTY, &CmdSeq) != 0) {
|
|
esyslog("ERROR: frontend %d/%d: %m (%s:%d)", adapter, frontend, __FILE__, __LINE__);
|
|
return false;
|
|
}
|
|
int i = 0;
|
|
if (Strength) {
|
|
if (Props[i].u.st.len > 0) {
|
|
switch (Props[i].u.st.stat[0].scale) {
|
|
case FE_SCALE_DECIBEL: *Strength = double(Props[i].u.st.stat[0].svalue) / 1000;
|
|
Valid |= DTV_STAT_VALID_STRENGTH;
|
|
break;
|
|
default: ;
|
|
}
|
|
}
|
|
i++;
|
|
}
|
|
if (Cnr) {
|
|
if (Props[i].u.st.len > 0) {
|
|
switch (Props[i].u.st.stat[0].scale) {
|
|
case FE_SCALE_DECIBEL: *Cnr = double(Props[i].u.st.stat[0].svalue) / 1000;
|
|
Valid |= DTV_STAT_VALID_CNR;
|
|
break;
|
|
default: ;
|
|
}
|
|
}
|
|
i++;
|
|
}
|
|
if (BerPre) {
|
|
if (Props[i].u.st.len > 0 && Props[i + 1].u.st.len > 0) {
|
|
if (Props[i].u.st.stat[0].scale == FE_SCALE_COUNTER && Props[i + 1].u.st.stat[0].scale == FE_SCALE_COUNTER) {
|
|
uint64_t ebc = Props[i].u.st.stat[0].uvalue; // error bit count
|
|
uint64_t tbc = Props[i + 1].u.st.stat[0].uvalue; // total bit count
|
|
if (tbc > 0) {
|
|
*BerPre = double(ebc) / tbc;
|
|
Valid |= DTV_STAT_VALID_BERPRE;
|
|
}
|
|
}
|
|
}
|
|
i += 2;
|
|
}
|
|
if (BerPost) {
|
|
if (Props[i].u.st.len > 0 && Props[i + 1].u.st.len > 0) {
|
|
if (Props[i].u.st.stat[0].scale == FE_SCALE_COUNTER && Props[i + 1].u.st.stat[0].scale == FE_SCALE_COUNTER) {
|
|
uint64_t ebc = Props[i].u.st.stat[0].uvalue; // error bit count
|
|
uint64_t tbc = Props[i + 1].u.st.stat[0].uvalue; // total bit count
|
|
if (tbc > 0) {
|
|
*BerPost = double(ebc) / tbc;
|
|
Valid |= DTV_STAT_VALID_BERPOST;
|
|
}
|
|
}
|
|
}
|
|
i += 2;
|
|
}
|
|
if (Per) {
|
|
if (Props[i].u.st.len > 0 && Props[i + 1].u.st.len > 0) {
|
|
if (Props[i].u.st.stat[0].scale == FE_SCALE_COUNTER && Props[i + 1].u.st.stat[0].scale == FE_SCALE_COUNTER) {
|
|
uint64_t ebc = Props[i].u.st.stat[0].uvalue; // error block count
|
|
uint64_t tbc = Props[i + 1].u.st.stat[0].uvalue; // total block count
|
|
if (tbc > 0) {
|
|
*Per = double(ebc) / tbc;
|
|
Valid |= DTV_STAT_VALID_PER;
|
|
}
|
|
}
|
|
}
|
|
i += 2;
|
|
}
|
|
#ifdef DEBUG_SIGNALSTATS
|
|
fprintf(stderr, "FE %d/%d: API5 %04X", adapter, frontend, Valid);
|
|
if ((Valid & DTV_STAT_VALID_STATUS) != 0) fprintf(stderr, " STAT=%04X", *Status);
|
|
if ((Valid & DTV_STAT_VALID_STRENGTH) != 0) fprintf(stderr, " STR=%1.1fdBm", *Strength);
|
|
if ((Valid & DTV_STAT_VALID_CNR) != 0) fprintf(stderr, " CNR=%1.1fdB", *Cnr);
|
|
if ((Valid & DTV_STAT_VALID_BERPRE) != 0) fprintf(stderr, " BERPRE=%1.1e", *BerPre);
|
|
if ((Valid & DTV_STAT_VALID_BERPOST) != 0) fprintf(stderr, " BERPOST=%1.1e", *BerPost);
|
|
if ((Valid & DTV_STAT_VALID_PER) != 0) fprintf(stderr, " PER=%1.1e", *Per);
|
|
fprintf(stderr, "\n");
|
|
#endif
|
|
return Valid != DTV_STAT_VALID_NONE;
|
|
}
|
|
|
|
int dB1000toPercent(int dB1000, int Low, int High)
|
|
{
|
|
// Convert the given value, which is in 1/1000 dBm, to a percentage in the
|
|
// range 0..100. Anything below Low is considered 0%, and anything above
|
|
// High counts as 100%.
|
|
if (dB1000 < Low)
|
|
return 0;
|
|
if (dB1000 > High)
|
|
return 100;
|
|
// return 100 - 100 * (High - dB1000) / (High - Low); // linear conversion
|
|
// return 100 - 100 * sqr(dB1000 - High) / sqr(Low - High); // quadratic conversion, see https://www.adriangranados.com/blog/dbm-to-percent-conversion
|
|
double v = 10.0 * (dB1000 - High) / (Low - High); // avoids the sqr() function
|
|
return 100 - v * v;
|
|
}
|
|
|
|
#define REF_S1(q1) (mod == QPSK) ? q1 : 0
|
|
#define REF_S2(q1, q2, q3, q4) (mod == QPSK) ? q1 : (mod == PSK_8) ? q2 : (mod == APSK_16) ? q3 : (mod == APSK_32) ? q4 : 0
|
|
#define REF_T1(q1, q2, q3) (mod == QPSK) ? q1 : (mod == QAM_16) ? q2 : (mod == QAM_64) ? q3 : 0
|
|
#define REF_T2(q1, q2, q3, q4) (mod == QPSK) ? q1 : (mod == QAM_16) ? q2 : (mod == QAM_64) ? q3 : (mod == QAM_256) ? q4 : 0
|
|
#define REF_C1(q1, q2, q3, q4, q5) (mod == QAM_16) ? q1 : (mod == QAM_32) ? q2 : (mod == QAM_64) ? q3 : (mod == QAM_128) ? q4 : (mod == QAM_256) ? q5: 0
|
|
|
|
int StrengthToSSI(const cChannel *Channel, int Strength, int FeModulation, int FeCoderateH, int FeFec)
|
|
{
|
|
// Strength in 0.001dBm (dBm x 1000)
|
|
cDvbTransponderParameters dtp(Channel->Parameters());
|
|
int ssi = 0; // 0-100
|
|
int mod = (FeModulation >= 0) ? FeModulation : dtp.Modulation();
|
|
int cod = (FeCoderateH >= 0) ? FeCoderateH : dtp.CoderateH(); // DVB-T
|
|
int fec = (FeFec >= 0) ? FeFec : dtp.CoderateH();
|
|
if (Channel->IsTerr()) {
|
|
int pref = 0;
|
|
// NorDig Unified Ver. 2.6 - 3.4.4.6 Page 43 ff.
|
|
// reference values : pref-15dBm = 0%, pref+35dBm = 100%
|
|
if (dtp.System() == DVB_SYSTEM_1) { // DVB-T
|
|
fec = cod; // adjustment for DVB-T
|
|
if (mod == QAM_AUTO) mod = QPSK;
|
|
switch (fec) { // dBm: Q4 Q16 Q64
|
|
case FEC_1_2: pref = REF_T1(-93, -87, -82); break;
|
|
default:
|
|
case FEC_2_3: pref = REF_T1(-91, -85, -80); break;
|
|
case FEC_3_4: pref = REF_T1(-90, -84, -78); break;
|
|
case FEC_5_6: pref = REF_T1(-89, -83, -77); break;
|
|
case FEC_7_8: pref = REF_T1(-88, -82, -76); break;
|
|
}
|
|
}
|
|
else { // DVB-T2
|
|
if (mod == QAM_AUTO) mod = QAM_64;
|
|
switch (fec) { // dBm: Q4 Q16 Q64 Q256
|
|
case FEC_1_2: pref = REF_T2(-96, -91, -86, -82); break;
|
|
default:
|
|
case FEC_3_5: pref = REF_T2(-95, -89, -85, -80); break;
|
|
case FEC_2_3: pref = REF_T2(-94, -88, -83, -78); break;
|
|
case FEC_3_4: pref = REF_T2(-93, -87, -82, -76); break;
|
|
case FEC_4_5: pref = REF_T2(-92, -86, -81, -75); break;
|
|
case FEC_5_6: pref = REF_T2(-92, -86, -80, -74); break;
|
|
}
|
|
}
|
|
if (pref) {
|
|
int prel = (Strength / 1000) - pref;
|
|
ssi = (prel < -15) ? 0 :
|
|
(prel < 0) ? (prel + 15) * 2 / 3 : // 0% - 10%
|
|
(prel < 20) ? prel * 4 + 10 : // 10% - 90%
|
|
(prel < 35) ? (prel - 20) * 2 / 3 + 90 : // 90% - 100%
|
|
100;
|
|
#ifdef DEBUG_SIGNALSTRENGTH
|
|
fprintf(stderr, "SSI-T: STR:%d, Pref:%d, Prel:%d, ssi:%d%%(sys:%d, mod:%d, fec:%d)\n", Strength, pref, prel, ssi, dtp.System(), mod, fec);
|
|
#endif
|
|
}
|
|
}
|
|
else if (Channel->IsCable()) { // ! COMPLETELY UNTESTED !
|
|
// Formula: pref(dB) = -174.0 + NoiseFigure + SymRef + CnRef
|
|
// NoiseFigure = 6.5 dB; -> Tuner specific - range: 3.5 .. 9.0 dB
|
|
// SymRef = 10*log(6900000) = 68.5 dB; -> for Symbolrate of 6900 kSym/sec (TV: 6900, 6750 or 6111 kSym/sec)
|
|
// ==> pref(dB) = -174.0 + 6.5 + 68.5 + CnRef[modulation]{20,23,26,29,32}; (+/- 3 dB tuner specific)
|
|
if (mod == QAM_AUTO) mod = QAM_256;
|
|
// Q16 Q32 Q64 Q128 Q256
|
|
int pref = REF_C1(-79, -76, -73, -70, -67);
|
|
if (pref) {
|
|
int prel = (Strength / 1000) - pref;
|
|
ssi = (prel < -15) ? 0 :
|
|
(prel < 0) ? (prel + 15) * 2 / 3 : // 0% - 10%
|
|
(prel < 20) ? prel * 4 + 10 : // 10% - 90%
|
|
(prel < 35) ? (prel - 20) * 2 / 3 + 90 : // 90% - 100%
|
|
100;
|
|
#ifdef DEBUG_SIGNALSTRENGTH
|
|
fprintf(stderr, "SSI-C: STR:%d, Pref:%d, Prel:%d, ssi:%d%%(mod:%d)\n", Strength, pref, prel, ssi, mod);
|
|
#endif
|
|
}
|
|
}
|
|
else if (Channel->IsSat())
|
|
ssi = dB1000toPercent(Strength, -95000, -20000); // defaults
|
|
return ssi;
|
|
}
|
|
|
|
// Due to missing values or the different meanings of the reported error rate, ber_sqi is currently not taken into account
|
|
#define IGNORE_BER 1
|
|
#define BER_ERROR_FREE (1000*1000*1000) // 1/10^-9
|
|
|
|
int SignalToSQI(const cChannel *Channel, int Signal, int Ber, int FeModulation, int FeCoderateH, int FeFec)
|
|
{
|
|
#if IGNORE_BER
|
|
Ber = BER_ERROR_FREE; // assume/pretend to be biterror free
|
|
#endif
|
|
// Signal in 0.001dB (dB x 1000)
|
|
cDvbTransponderParameters dtp(Channel->Parameters());
|
|
int sqi = 0; // 0-100
|
|
int mod = (FeModulation >= 0) ? FeModulation : dtp.Modulation();
|
|
int cod = (FeCoderateH >= 0) ? FeCoderateH : dtp.CoderateH(); // DVB-T
|
|
int fec = (FeFec >= 0) ? FeFec : dtp.CoderateH();
|
|
if (Channel->IsTerr()) { // QEF: BER 10^-6
|
|
int cnref = 0;
|
|
// NorDig Unified Ver. 2.6 - 3.4.4.7 Page 45 ff.
|
|
// reference values for QEF (BER 10^-11 at MPEG2 demux input)
|
|
if (dtp.System() == DVB_SYSTEM_1) { // DVB-T
|
|
fec = cod; // adjustment for DVB-T
|
|
if (mod == QAM_AUTO) mod = QPSK;
|
|
switch (fec) { // 0.1 dB Q4 Q16 Q64 (Hierarchy=None)
|
|
case FEC_1_2: cnref = REF_T1(51, 108, 165); break;
|
|
default:
|
|
case FEC_2_3: cnref = REF_T1(69, 131, 187); break;
|
|
case FEC_3_4: cnref = REF_T1(79, 146, 202); break;
|
|
case FEC_5_6: cnref = REF_T1(89, 156, 216); break;
|
|
case FEC_7_8: cnref = REF_T1(97, 160, 225); break;
|
|
}
|
|
}
|
|
else { // DVB-T2
|
|
if (mod == QAM_AUTO) mod = QAM_64;
|
|
switch (fec) { // 0.1 dB Q4 Q16 Q64 Q256
|
|
case FEC_1_2: cnref = REF_T2(35, 87, 130, 170); break;
|
|
default:
|
|
case FEC_3_5: cnref = REF_T2(47, 101, 148, 194); break;
|
|
case FEC_2_3: cnref = REF_T2(56, 114, 162, 208); break;
|
|
case FEC_3_4: cnref = REF_T2(66, 125, 177, 229); break;
|
|
case FEC_4_5: cnref = REF_T2(72, 133, 187, 243); break;
|
|
case FEC_5_6: cnref = REF_T2(77, 138, 194, 251); break;
|
|
}
|
|
}
|
|
if (cnref) {
|
|
int cnrel = (Signal/100) - cnref; // 0.1 dB
|
|
int ber_sqi = 100; // 100%
|
|
int cnr_sqi = 0; // 0%
|
|
if (dtp.System() == DVB_SYSTEM_1) { // DVB-T
|
|
ber_sqi = (Ber < 1000) ? 0 : // > 10^-3
|
|
(Ber >= 10000000) ? 100 : // <= 10^-7
|
|
(int)(20 * log10(Ber)) - 40; // 20*log10(1/BER)-40 -> 20% .. 100%
|
|
// scale: -7dB/+3dB to reference-value
|
|
cnr_sqi = (cnrel < -70) ? 0 :
|
|
(cnrel < +30) ? (100 + (cnrel - 30)) :
|
|
100;
|
|
sqi = (cnr_sqi * ber_sqi) / 100;
|
|
// alternative: stretched scale: cnref-7dB = 0%, 30dB = 100%
|
|
// sqi = dB1000toPercent(Signal, (100*cnref)-7000, 30000);
|
|
}
|
|
else { // DVB-T2
|
|
ber_sqi = (Ber < 10000) ? 0 : // > 10^-4
|
|
(Ber >= 10000000) ? 100 * 100 / 6 : // <= 10^-7 : 16.67% -> SQI 0% .. 100%
|
|
(100 * 100 / 15); // 6.67% -> SQI 0% .. 40% || 100%
|
|
// scale: -3dB/+3dB to reference-value
|
|
sqi = (cnrel < -30) ? 0 :
|
|
(cnrel <= +30) ? (cnrel + 30) * ber_sqi / 1000 : // (0 .. 6) * 16,67 || 6.67
|
|
100;
|
|
// alternative: stretched scale: cnref-3dB = 0%, 32dB = 100%
|
|
// sqi = dB1000toPercent(Signal, (100*cnref)-3000, 32000);
|
|
}
|
|
#ifdef DEBUG_SIGNALQUALITY
|
|
fprintf(stderr, "SQI-T: SIG:%d, BER:%d, CNref:%d, CNrel:%d, bersqi:%d, sqi:%d%%(sys:%d, mod:%d, fec:%d)\n", Signal, Ber, cnref, cnrel, ber_sqi, sqi, dtp.System(), mod, fec);
|
|
#endif
|
|
}
|
|
}
|
|
else if (Channel->IsCable()) { // ! COMPLETELY UNTESTED !
|
|
if (mod == QAM_AUTO) mod = QAM_256;
|
|
// 0.1 dB Q16 Q32 Q64 Q128 Q256
|
|
int cnref = REF_C1(200, 230, 260, 290, 320); // minimum for BER<10^-4
|
|
if (cnref) {
|
|
int cnrel = (Signal / 100) - cnref; // 0.1 dB
|
|
int ber_sqi = (Ber < 1000) ? 0 : // > 10^-3
|
|
(Ber >= 10000000) ? 100 : // <= 10^-7
|
|
(int)(20 * log10(Ber)) - 40; // 20*log10(1/BER)-40 -> 20% .. 100%
|
|
// scale: -7dB/+3dB to reference-value
|
|
int cnr_sqi = (cnrel < -70) ? 0 :
|
|
(cnrel < +30) ? (100 + (cnrel - 30)) :
|
|
100;
|
|
sqi = (cnr_sqi * ber_sqi) / 100;
|
|
// alternative: stretched scale: cnref-7dB = 0%, 40dB = 100%
|
|
// sqi = dB1000toPercent(Signal, (100*cnref)-7000, 40000);
|
|
#ifdef DEBUG_SIGNALQUALITY
|
|
dsyslog("SQI-C: SIG:%d, BER:%d, CNref:%d, CNrel:%d, bersqi:%d, sqi:%d%%(sys:%d, mod:%d, fec:%d)\n", Signal, Ber, cnref, cnrel, ber_sqi, sqi, dtp.System(), mod, fec);
|
|
#endif
|
|
}
|
|
}
|
|
else if (Channel->IsSat()) {
|
|
int cnref = 0;
|
|
if (dtp.System() == DVB_SYSTEM_1) { // DVB-S
|
|
if (mod == QAM_AUTO) mod = QPSK;
|
|
switch (fec) { // 0.1 dB: Q4 : 10^-7
|
|
case FEC_1_2: cnref = REF_S1(38); break;
|
|
default:
|
|
case FEC_2_3: cnref = REF_S1(56); break;
|
|
case FEC_3_4: cnref = REF_S1(67); break;
|
|
case FEC_5_6: cnref = REF_S1(77); break;
|
|
case FEC_7_8: cnref = REF_S1(84); break;
|
|
}
|
|
if (cnref) {
|
|
//cnrel = (Signal/100) - cnref; // 0.1 dB
|
|
// scale: cnref-4dB = 0%, 15dB = 100%
|
|
sqi = dB1000toPercent(Signal, (100*cnref)-4000, 15000);
|
|
#ifdef DEBUG_SIGNALQUALITY
|
|
dsyslog("SQI-S1: SIG:%d, BER:%d, CNref:%d, sqi:%d%%(mod:%d, fec:%d)\n", Signal, Ber, cnref, sqi, mod, fec);
|
|
#endif
|
|
}
|
|
}
|
|
else { // DVB-S2
|
|
if (mod == QAM_AUTO) mod = QAM_64;
|
|
switch (fec) { // 0.1 dB Q4 Q8 16A* 32A*
|
|
//case FEC_1_4: cnref = REF_S2(-14, 65, 90, 126); break;
|
|
//case FEC_1_3: cnref = REF_S2( -2, 65, 90, 126); break;
|
|
case FEC_2_5: cnref = REF_S2( 7, 65, 90, 126); break;
|
|
case FEC_1_2: cnref = REF_S2( 20, 65, 90, 126); break;
|
|
case FEC_3_5: cnref = REF_S2( 32, 65, 90, 126); break;
|
|
default:
|
|
case FEC_2_3: cnref = REF_S2( 41, 76, 90, 126); break;
|
|
case FEC_3_4: cnref = REF_S2( 50, 66, 102, 126); break;
|
|
case FEC_4_5: cnref = REF_S2( 57, 89, 110, 136); break;
|
|
case FEC_5_6: cnref = REF_S2( 62, 104, 116, 143); break;
|
|
case FEC_8_9: cnref = REF_S2( 72, 117, 129, 157); break;
|
|
case FEC_9_10: cnref = REF_S2( 74, 120, 131, 161); break;
|
|
}
|
|
if (cnref) {
|
|
// cnrel = (Signal/100) - cnref; // 0.1 dB
|
|
// scale: cnref-4dB = 0%, 20dB = 100%
|
|
sqi = dB1000toPercent(Signal, (100*cnref)-4000, 20000);
|
|
#ifdef DEBUG_SIGNALQUALITY
|
|
dsyslog("SQI-S2: SIG:%d, BER:%d, CNref:%d, sqi:%d%%(mod:%d, fec:%d)\n", Signal, Ber, cnref, sqi, mod, fec);
|
|
#endif
|
|
}
|
|
}
|
|
}
|
|
return sqi;
|
|
}
|
|
|
|
int cDvbTuner::GetSignalStrength(void) const
|
|
{
|
|
ClearEventQueue();
|
|
// Try DVB API 5:
|
|
for (int i = 0; i < 1; i++) { // just a trick to break out with 'continue' ;-)
|
|
dtv_property Props[MAXFRONTENDCMDS];
|
|
dtv_properties CmdSeq;
|
|
memset(&Props, 0, sizeof(Props));
|
|
memset(&CmdSeq, 0, sizeof(CmdSeq));
|
|
CmdSeq.props = Props;
|
|
SETCMD(DTV_STAT_SIGNAL_STRENGTH, 0);
|
|
SETCMD(DTV_MODULATION, 0);
|
|
SETCMD(DTV_CODE_RATE_HP, 0); // DVB-T only
|
|
SETCMD(DTV_INNER_FEC, 0);
|
|
if (ioctl(fd_frontend, FE_GET_PROPERTY, &CmdSeq) != 0) {
|
|
esyslog("ERROR: frontend %d/%d: %m (%s:%d)", adapter, frontend, __FILE__, __LINE__);
|
|
return -1;
|
|
}
|
|
int FeMod = (Props[1].u.st.len > 0) ? (int)Props[1].u.data : -1;
|
|
int FeCod = (Props[2].u.st.len > 0) ? (int)Props[2].u.data : -1;
|
|
int FeFec = (Props[3].u.st.len > 0) ? (int)Props[3].u.data : -1;
|
|
int Signal = 0;
|
|
if (Props[0].u.st.len > 0) {
|
|
switch (Props[0].u.st.stat[0].scale) {
|
|
case FE_SCALE_DECIBEL: Signal = StrengthToSSI(&channel, Props[0].u.st.stat[0].svalue, FeMod, FeCod, FeFec);
|
|
break;
|
|
case FE_SCALE_RELATIVE: Signal = 100 * Props[0].u.st.stat[0].uvalue / 0xFFFF;
|
|
break;
|
|
default: ;
|
|
}
|
|
#ifdef DEBUG_SIGNALSTRENGTH
|
|
fprintf(stderr, "FE %d/%d: API5 %d %08X %.1f S = %d\n", adapter, frontend, Props[0].u.st.stat[0].scale, int(Props[0].u.st.stat[0].svalue), int(Props[0].u.st.stat[0].svalue) / 1000.0, Signal);
|
|
#endif
|
|
}
|
|
else
|
|
continue;
|
|
return Signal;
|
|
}
|
|
// Fall back to DVB API 3:
|
|
uint16_t Signal;
|
|
while (1) {
|
|
if (ioctl(fd_frontend, FE_READ_SIGNAL_STRENGTH, &Signal) != -1)
|
|
break;
|
|
if (errno != EINTR)
|
|
return -1;
|
|
}
|
|
uint16_t MaxSignal = 0xFFFF; // Let's assume the default is using the entire range.
|
|
// Use the subsystemId to identify individual devices in case they need
|
|
// special treatment to map their Signal value into the range 0...0xFFFF.
|
|
switch (dvbFrontend->SubsystemId()) {
|
|
case 0x13C21019: // TT-budget S2-3200 (DVB-S/DVB-S2)
|
|
case 0x1AE40001: // TechniSat SkyStar HD2 (DVB-S/DVB-S2)
|
|
MaxSignal = 670; break;
|
|
}
|
|
int s = int(Signal) * 100 / MaxSignal;
|
|
if (s > 100)
|
|
s = 100;
|
|
#ifdef DEBUG_SIGNALSTRENGTH
|
|
fprintf(stderr, "FE %d/%d: API3 %08X S = %04X %04X %3d%%\n", adapter, frontend, dvbFrontend->SubsystemId(), MaxSignal, Signal, s);
|
|
#endif
|
|
return s;
|
|
}
|
|
|
|
#define LOCK_THRESHOLD 5 // indicates that all 5 FE_HAS_* flags are set
|
|
|
|
int cDvbTuner::GetSignalQuality(void) const
|
|
{
|
|
// Try DVB API 5:
|
|
for (int i = 0; i < 1; i++) { // just a trick to break out with 'continue' ;-)
|
|
dtv_property Props[MAXFRONTENDCMDS];
|
|
dtv_properties CmdSeq;
|
|
memset(&Props, 0, sizeof(Props));
|
|
memset(&CmdSeq, 0, sizeof(CmdSeq));
|
|
CmdSeq.props = Props;
|
|
SETCMD(DTV_STAT_CNR, 0);
|
|
SETCMD(DTV_MODULATION, 0);
|
|
SETCMD(DTV_CODE_RATE_HP, 0); // DVB-T only
|
|
SETCMD(DTV_INNER_FEC, 0);
|
|
SETCMD(DTV_STAT_POST_ERROR_BIT_COUNT, 0);
|
|
SETCMD(DTV_STAT_POST_TOTAL_BIT_COUNT, 0);
|
|
if (ioctl(fd_frontend, FE_GET_PROPERTY, &CmdSeq) != 0) {
|
|
esyslog("ERROR: frontend %d/%d: %m (%s:%d)", adapter, frontend, __FILE__, __LINE__);
|
|
return -1;
|
|
}
|
|
int FeMod = (Props[1].u.st.len > 0) ? (int)Props[1].u.data : -1;
|
|
int FeCod = (Props[2].u.st.len > 0) ? (int)Props[2].u.data : -1;
|
|
int FeFec = (Props[3].u.st.len > 0) ? (int)Props[3].u.data : -1;
|
|
int Ber = BER_ERROR_FREE; // 1/10^-9
|
|
if (Props[4].u.st.len > 0 && Props[4].u.st.stat[0].scale == FE_SCALE_COUNTER && Props[5].u.st.len > 0 && Props[5].u.st.stat[0].scale == FE_SCALE_COUNTER) {
|
|
uint64_t ebc = Props[4].u.st.stat[0].uvalue; // error bit count
|
|
uint64_t tbc = Props[5].u.st.stat[0].uvalue; // total bit count
|
|
if (ebc > 0) {
|
|
uint64_t BerRev = tbc / ebc; // reversed, for integer arithmetic
|
|
if (BerRev < BER_ERROR_FREE)
|
|
Ber = (int)BerRev;
|
|
}
|
|
}
|
|
int Cnr = 0;
|
|
if (Props[0].u.st.len > 0) {
|
|
switch (Props[0].u.st.stat[0].scale) {
|
|
case FE_SCALE_DECIBEL: Cnr = SignalToSQI(&channel, Props[0].u.st.stat[0].svalue, Ber, FeMod, FeCod, FeFec);
|
|
break;
|
|
case FE_SCALE_RELATIVE: Cnr = 100 * Props[0].u.st.stat[0].uvalue / 0xFFFF;
|
|
break;
|
|
default: ;
|
|
}
|
|
#ifdef DEBUG_SIGNALQUALITY
|
|
fprintf(stderr, "FE %d/%d: API5 %d %08X %.1f Q = %d\n", adapter, frontend, Props[0].u.st.stat[0].scale, int(Props[0].u.st.stat[0].svalue), int(Props[0].u.st.stat[0].svalue) / 1000.0, Cnr);
|
|
#endif
|
|
}
|
|
else
|
|
continue;
|
|
return Cnr;
|
|
}
|
|
// Fall back to DVB API 3:
|
|
fe_status_t Status;
|
|
if (GetFrontendStatus(Status)) {
|
|
// Actually one would expect these checks to be done from FE_HAS_SIGNAL to FE_HAS_LOCK, but some drivers (like the stb0899) are broken, so FE_HAS_LOCK is the only one that (hopefully) is generally reliable...
|
|
if ((Status & FE_HAS_LOCK) == 0) {
|
|
if ((Status & FE_HAS_SIGNAL) == 0)
|
|
return 0;
|
|
if ((Status & FE_HAS_CARRIER) == 0)
|
|
return 1;
|
|
if ((Status & FE_HAS_VITERBI) == 0)
|
|
return 2;
|
|
if ((Status & FE_HAS_SYNC) == 0)
|
|
return 3;
|
|
return 4;
|
|
}
|
|
#ifdef DEBUG_SIGNALQUALITY
|
|
bool HasSnr = true;
|
|
#endif
|
|
uint16_t Snr;
|
|
while (1) {
|
|
if (ioctl(fd_frontend, FE_READ_SNR, &Snr) != -1)
|
|
break;
|
|
if (errno != EINTR) {
|
|
Snr = 0xFFFF;
|
|
#ifdef DEBUG_SIGNALQUALITY
|
|
HasSnr = false;
|
|
#endif
|
|
break;
|
|
}
|
|
}
|
|
#ifdef DEBUG_SIGNALQUALITY
|
|
bool HasBer = true;
|
|
#endif
|
|
uint32_t Ber;
|
|
while (1) {
|
|
if (ioctl(fd_frontend, FE_READ_BER, &Ber) != -1)
|
|
break;
|
|
if (errno != EINTR) {
|
|
Ber = 0;
|
|
#ifdef DEBUG_SIGNALQUALITY
|
|
HasBer = false;
|
|
#endif
|
|
break;
|
|
}
|
|
}
|
|
#ifdef DEBUG_SIGNALQUALITY
|
|
bool HasUnc = true;
|
|
#endif
|
|
uint32_t Unc;
|
|
while (1) {
|
|
if (ioctl(fd_frontend, FE_READ_UNCORRECTED_BLOCKS, &Unc) != -1) {
|
|
if (Unc != lastUncValue) {
|
|
#ifdef DEBUG_SIGNALQUALITY
|
|
fprintf(stderr, "FE %d/%d: API3 UNC = %u %u %u\n", adapter, frontend, Unc, lastUncValue, lastUncDelta);
|
|
#endif
|
|
lastUncDelta = (Unc >= lastUncValue) ? Unc - lastUncValue : lastUncValue - Unc;
|
|
lastUncValue = Unc;
|
|
lastUncChange = time(NULL);
|
|
}
|
|
// The number of uncorrected blocks is a counter, which is normally
|
|
// at a constant value and only increases if there are new uncorrected
|
|
// blocks. So a change in the Unc value indicates reduced signal quality.
|
|
// Whenever the Unc counter changes, we take the delta between the old
|
|
// and new value into account for calculating the overall signal quality.
|
|
// The impact of Unc is considered for 2 seconds, and after that it is
|
|
// bisected with every passing second in order to phase it out. Otherwise
|
|
// once one or more uncorrected blocks occur, the signal quality would
|
|
// be considered low even if there haven't been any more uncorrected bocks
|
|
// for quite a while.
|
|
Unc = lastUncDelta;
|
|
if (Unc > 0) {
|
|
int t = time(NULL) - lastUncChange - 2;
|
|
if (t > 0)
|
|
Unc >>= min(t, int(sizeof(Unc) * 8 - 1));
|
|
if (Unc == 0)
|
|
lastUncDelta = 0;
|
|
#ifdef DEBUG_SIGNALQUALITY
|
|
fprintf(stderr, "FE %d/%d: API3 UNC = %u\n", adapter, frontend, Unc);
|
|
#endif
|
|
}
|
|
break;
|
|
}
|
|
if (errno != EINTR) {
|
|
Unc = 0;
|
|
#ifdef DEBUG_SIGNALQUALITY
|
|
HasUnc = false;
|
|
#endif
|
|
break;
|
|
}
|
|
}
|
|
uint16_t MinSnr = 0x0000;
|
|
uint16_t MaxSnr = 0xFFFF; // Let's assume the default is using the entire range.
|
|
// Use the subsystemId to identify individual devices in case they need
|
|
// special treatment to map their Snr value into the range 0...0xFFFF.
|
|
switch (dvbFrontend->SubsystemId()) {
|
|
case 0x13C21019: // TT-budget S2-3200 (DVB-S/DVB-S2)
|
|
case 0x1AE40001: // TechniSat SkyStar HD2 (DVB-S/DVB-S2)
|
|
if (frontendType == SYS_DVBS2) {
|
|
MinSnr = 10;
|
|
MaxSnr = 70;
|
|
}
|
|
else
|
|
MaxSnr = 200;
|
|
break;
|
|
case 0x20130245: // PCTV Systems PCTV 73ESE
|
|
case 0x2013024F: // PCTV Systems nanoStick T2 290e
|
|
MaxSnr = 255; break;
|
|
}
|
|
int a = int(constrain(Snr, MinSnr, MaxSnr)) * 100 / (MaxSnr - MinSnr);
|
|
int b = 100 - (Unc * 10 + (Ber / 256) * 5);
|
|
if (b < 0)
|
|
b = 0;
|
|
int q = LOCK_THRESHOLD + a * b * (100 - LOCK_THRESHOLD) / 100 / 100;
|
|
if (q > 100)
|
|
q = 100;
|
|
#ifdef DEBUG_SIGNALQUALITY
|
|
fprintf(stderr, "FE %d/%d: API3 %08X Q = %04X %04X %d %5d %5d %3d%%\n", adapter, frontend, dvbFrontend->SubsystemId(), MaxSnr, Snr, HasSnr, HasBer ? int(Ber) : -1, HasUnc ? int(Unc) : -1, q);
|
|
#endif
|
|
return q;
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
static unsigned int FrequencyToHz(unsigned int f)
|
|
{
|
|
while (f && f < 1000000)
|
|
f *= 1000;
|
|
return f;
|
|
}
|
|
|
|
cPositioner *cDvbTuner::GetPositioner(void)
|
|
{
|
|
if (!positioner) {
|
|
positioner = cPositioner::GetPositioner();
|
|
positioner->SetFrontend(fd_frontend);
|
|
}
|
|
return positioner;
|
|
}
|
|
|
|
void cDvbTuner::ExecuteDiseqc(const cDiseqc *Diseqc, int *Frequency)
|
|
{
|
|
if (!lnbPowerTurnedOn) {
|
|
CHECK(ioctl(fd_frontend, FE_SET_VOLTAGE, SEC_VOLTAGE_13)); // must explicitly turn on LNB power
|
|
lnbPowerTurnedOn = true;
|
|
}
|
|
static cMutex Mutex;
|
|
if (Diseqc->IsScr())
|
|
Mutex.Lock();
|
|
struct dvb_diseqc_master_cmd cmd;
|
|
const char *CurrentAction = NULL;
|
|
cPositioner *Positioner = NULL;
|
|
bool Break = false;
|
|
for (int i = 0; !Break; i++) {
|
|
cmd.msg_len = sizeof(cmd.msg);
|
|
cDiseqc::eDiseqcActions da = Diseqc->Execute(&CurrentAction, cmd.msg, &cmd.msg_len, scr, Frequency);
|
|
if (da == cDiseqc::daNone) {
|
|
diseqcOffset = 0;
|
|
break;
|
|
}
|
|
bool d = i >= diseqcOffset;
|
|
switch (da) {
|
|
case cDiseqc::daToneOff: if (d) CHECK(ioctl(fd_frontend, FE_SET_TONE, SEC_TONE_OFF)); break;
|
|
case cDiseqc::daToneOn: if (d) CHECK(ioctl(fd_frontend, FE_SET_TONE, SEC_TONE_ON)); break;
|
|
case cDiseqc::daVoltage13: if (d) CHECK(ioctl(fd_frontend, FE_SET_VOLTAGE, SEC_VOLTAGE_13)); break;
|
|
case cDiseqc::daVoltage18: if (d) CHECK(ioctl(fd_frontend, FE_SET_VOLTAGE, SEC_VOLTAGE_18)); break;
|
|
case cDiseqc::daMiniA: if (d) CHECK(ioctl(fd_frontend, FE_DISEQC_SEND_BURST, SEC_MINI_A)); break;
|
|
case cDiseqc::daMiniB: if (d) CHECK(ioctl(fd_frontend, FE_DISEQC_SEND_BURST, SEC_MINI_B)); break;
|
|
case cDiseqc::daCodes: if (d) CHECK(ioctl(fd_frontend, FE_DISEQC_SEND_MASTER_CMD, &cmd)); break;
|
|
case cDiseqc::daPositionN: if ((Positioner = GetPositioner()) != NULL) {
|
|
if (d) {
|
|
Positioner->GotoPosition(Diseqc->Position(), cSource::Position(channel.Source()));
|
|
Break = Positioner->IsMoving();
|
|
}
|
|
}
|
|
break;
|
|
case cDiseqc::daPositionA: if ((Positioner = GetPositioner()) != NULL) {
|
|
if (d) {
|
|
Positioner->GotoAngle(cSource::Position(channel.Source()));
|
|
Break = Positioner->IsMoving();
|
|
}
|
|
}
|
|
break;
|
|
case cDiseqc::daScr:
|
|
case cDiseqc::daWait: break;
|
|
default: esyslog("ERROR: unknown diseqc command %d", da);
|
|
}
|
|
if (Break)
|
|
diseqcOffset = i + 1;
|
|
}
|
|
positioner = Positioner;
|
|
if (scr && !Break)
|
|
ResetToneAndVoltage(); // makes sure we don't block the bus!
|
|
if (Diseqc->IsScr())
|
|
Mutex.Unlock();
|
|
}
|
|
|
|
void cDvbTuner::ResetToneAndVoltage(void)
|
|
{
|
|
CHECK(ioctl(fd_frontend, FE_SET_VOLTAGE, bondedTuner ? SEC_VOLTAGE_OFF : SEC_VOLTAGE_13));
|
|
CHECK(ioctl(fd_frontend, FE_SET_TONE, SEC_TONE_OFF));
|
|
}
|
|
|
|
bool cDvbTuner::SetFrontend(void)
|
|
{
|
|
dtv_property Props[MAXFRONTENDCMDS];
|
|
memset(&Props, 0, sizeof(Props));
|
|
dtv_properties CmdSeq;
|
|
memset(&CmdSeq, 0, sizeof(CmdSeq));
|
|
CmdSeq.props = Props;
|
|
SETCMD(DTV_CLEAR, 0);
|
|
if (ioctl(fd_frontend, FE_SET_PROPERTY, &CmdSeq) < 0) {
|
|
esyslog("ERROR: frontend %d/%d: %m (%s:%d)", adapter, frontend, __FILE__, __LINE__);
|
|
return false;
|
|
}
|
|
CmdSeq.num = 0;
|
|
|
|
cDvbTransponderParameters dtp(channel.Parameters());
|
|
|
|
// Determine the required frontend type:
|
|
frontendType = GetRequiredDeliverySystem(&channel, &dtp);
|
|
if (frontendType == SYS_UNDEFINED)
|
|
return false;
|
|
|
|
SETCMD(DTV_DELIVERY_SYSTEM, frontendType);
|
|
if (frontendType == SYS_DVBS || frontendType == SYS_DVBS2) {
|
|
int frequency = channel.Frequency();
|
|
if (Setup.DiSEqC) {
|
|
if (const cDiseqc *diseqc = Diseqcs.Get(device->DeviceNumber() + 1, channel.Source(), frequency, dtp.Polarization(), &scr)) {
|
|
frequency -= diseqc->Lof();
|
|
if (diseqc != lastDiseqc || diseqc->IsScr() || diseqc->Position() >= 0 && channel.Source() != lastSource) {
|
|
if (IsBondedMaster()) {
|
|
ExecuteDiseqc(diseqc, &frequency);
|
|
if (frequency == 0)
|
|
return false;
|
|
}
|
|
else
|
|
ResetToneAndVoltage();
|
|
lastDiseqc = diseqc;
|
|
lastSource = channel.Source();
|
|
}
|
|
}
|
|
else {
|
|
esyslog("ERROR: no DiSEqC parameters found for channel %d (%s)", channel.Number(), channel.Name());
|
|
return false;
|
|
}
|
|
}
|
|
else {
|
|
int tone = SEC_TONE_OFF;
|
|
if (frequency < Setup.LnbSLOF) {
|
|
frequency -= Setup.LnbFrequLo;
|
|
tone = SEC_TONE_OFF;
|
|
}
|
|
else {
|
|
frequency -= Setup.LnbFrequHi;
|
|
tone = SEC_TONE_ON;
|
|
}
|
|
int volt = (dtp.Polarization() == 'V' || dtp.Polarization() == 'R') ? SEC_VOLTAGE_13 : SEC_VOLTAGE_18;
|
|
if (!IsBondedMaster()) {
|
|
tone = SEC_TONE_OFF;
|
|
volt = SEC_VOLTAGE_13;
|
|
}
|
|
CHECK(ioctl(fd_frontend, FE_SET_VOLTAGE, volt));
|
|
CHECK(ioctl(fd_frontend, FE_SET_TONE, tone));
|
|
}
|
|
frequency = abs(frequency); // Allow for C-band, where the frequency is less than the LOF
|
|
|
|
// DVB-S/DVB-S2 (common parts)
|
|
SETCMD(DTV_FREQUENCY, frequency * 1000UL);
|
|
SETCMD(DTV_MODULATION, dtp.Modulation());
|
|
SETCMD(DTV_SYMBOL_RATE, channel.Srate() * 1000UL);
|
|
SETCMD(DTV_INNER_FEC, dtp.CoderateH());
|
|
SETCMD(DTV_INVERSION, dtp.Inversion());
|
|
if (frontendType == SYS_DVBS2) {
|
|
// DVB-S2
|
|
SETCMD(DTV_PILOT, dtp.Pilot());
|
|
SETCMD(DTV_ROLLOFF, dtp.RollOff());
|
|
if (DvbApiVersion >= 0x0508)
|
|
SETCMD(DTV_STREAM_ID, dtp.StreamId());
|
|
}
|
|
else {
|
|
// DVB-S
|
|
SETCMD(DTV_ROLLOFF, ROLLOFF_35); // DVB-S always has a ROLLOFF of 0.35
|
|
}
|
|
|
|
tuneTimeout = DVBS_TUNE_TIMEOUT;
|
|
lockTimeout = DVBS_LOCK_TIMEOUT;
|
|
}
|
|
else if (frontendType == SYS_DVBC_ANNEX_AC || frontendType == SYS_DVBC_ANNEX_B) {
|
|
// DVB-C
|
|
SETCMD(DTV_FREQUENCY, FrequencyToHz(channel.Frequency()));
|
|
SETCMD(DTV_INVERSION, dtp.Inversion());
|
|
SETCMD(DTV_SYMBOL_RATE, channel.Srate() * 1000UL);
|
|
SETCMD(DTV_INNER_FEC, dtp.CoderateH());
|
|
SETCMD(DTV_MODULATION, dtp.Modulation());
|
|
|
|
tuneTimeout = DVBC_TUNE_TIMEOUT;
|
|
lockTimeout = DVBC_LOCK_TIMEOUT;
|
|
}
|
|
else if (frontendType == SYS_DVBT || frontendType == SYS_DVBT2) {
|
|
// DVB-T/DVB-T2 (common parts)
|
|
SETCMD(DTV_FREQUENCY, FrequencyToHz(channel.Frequency()));
|
|
SETCMD(DTV_INVERSION, dtp.Inversion());
|
|
SETCMD(DTV_BANDWIDTH_HZ, dtp.Bandwidth());
|
|
SETCMD(DTV_CODE_RATE_HP, dtp.CoderateH());
|
|
SETCMD(DTV_CODE_RATE_LP, dtp.CoderateL());
|
|
SETCMD(DTV_MODULATION, dtp.Modulation());
|
|
SETCMD(DTV_TRANSMISSION_MODE, dtp.Transmission());
|
|
SETCMD(DTV_GUARD_INTERVAL, dtp.Guard());
|
|
SETCMD(DTV_HIERARCHY, dtp.Hierarchy());
|
|
if (frontendType == SYS_DVBT2) {
|
|
// DVB-T2
|
|
SETCMD(DTV_INNER_FEC, dtp.CoderateH());
|
|
if (DvbApiVersion >= 0x0508) {
|
|
SETCMD(DTV_STREAM_ID, dtp.StreamId());
|
|
}
|
|
else if (DvbApiVersion >= 0x0503)
|
|
SETCMD(DTV_DVBT2_PLP_ID_LEGACY, dtp.StreamId());
|
|
}
|
|
tuneTimeout = DVBT_TUNE_TIMEOUT;
|
|
lockTimeout = DVBT_LOCK_TIMEOUT;
|
|
}
|
|
else if (frontendType == SYS_ATSC) {
|
|
// ATSC
|
|
SETCMD(DTV_FREQUENCY, FrequencyToHz(channel.Frequency()));
|
|
SETCMD(DTV_INVERSION, dtp.Inversion());
|
|
SETCMD(DTV_MODULATION, dtp.Modulation());
|
|
|
|
tuneTimeout = ATSC_TUNE_TIMEOUT;
|
|
lockTimeout = ATSC_LOCK_TIMEOUT;
|
|
}
|
|
else {
|
|
esyslog("ERROR: attempt to set channel with unknown DVB frontend type");
|
|
return false;
|
|
}
|
|
SETCMD(DTV_TUNE, 0);
|
|
if (ioctl(fd_frontend, FE_SET_PROPERTY, &CmdSeq) < 0) {
|
|
esyslog("ERROR: frontend %d/%d: %m (%s:%d)", adapter, frontend, __FILE__, __LINE__);
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
void cDvbTuner::Action(void)
|
|
{
|
|
cTimeMs Timer;
|
|
bool LostLock = false;
|
|
fe_status_t Status = (fe_status_t)0;
|
|
while (Running()) {
|
|
int WaitTime = 1000;
|
|
fe_status_t NewStatus;
|
|
if (GetFrontendStatus(NewStatus))
|
|
Status = NewStatus;
|
|
cMutexLock MutexLock(&mutex);
|
|
switch (tunerStatus) {
|
|
case tsIdle:
|
|
break; // we want the TimedWait() below!
|
|
case tsSet:
|
|
tunerStatus = SetFrontend() ? tsPositioning : tsIdle;
|
|
continue;
|
|
case tsPositioning:
|
|
if (positioner) {
|
|
if (positioner->IsMoving())
|
|
break; // we want the TimedWait() below!
|
|
else if (diseqcOffset) {
|
|
lastDiseqc = NULL;
|
|
tunerStatus = tsSet; // have it process the rest of the DiSEqC sequence
|
|
continue;
|
|
}
|
|
}
|
|
tunerStatus = tsTuned;
|
|
device->SectionHandler()->SetStatus(true); // may have been turned off when retuning
|
|
Timer.Set(tuneTimeout + (scr ? rand() % SCR_RANDOM_TIMEOUT : 0));
|
|
if (positioner)
|
|
continue;
|
|
// otherwise run directly into tsTuned...
|
|
case tsTuned:
|
|
if (Timer.TimedOut()) {
|
|
tunerStatus = tsSet;
|
|
lastDiseqc = NULL;
|
|
lastSource = 0;
|
|
if (time(NULL) - lastTimeoutReport > 60) { // let's not get too many of these
|
|
if (channel.Number()) // no need to log this for transponders that are announced in the NIT but are not currently broadcasting
|
|
isyslog("frontend %d/%d timed out while tuning to channel %d (%s), tp %d", adapter, frontend, channel.Number(), channel.Name(), channel.Transponder());
|
|
lastTimeoutReport = time(NULL);
|
|
}
|
|
continue;
|
|
}
|
|
WaitTime = 100; // allows for a quick change from tsTuned to tsLocked
|
|
// run into tsLocked...
|
|
case tsLocked:
|
|
if (Status & FE_REINIT) {
|
|
tunerStatus = tsSet;
|
|
lastDiseqc = NULL;
|
|
lastSource = 0;
|
|
isyslog("frontend %d/%d was reinitialized", adapter, frontend);
|
|
lastTimeoutReport = 0;
|
|
continue;
|
|
}
|
|
else if (Status & FE_HAS_LOCK) {
|
|
if (LostLock) {
|
|
isyslog("frontend %d/%d regained lock on channel %d (%s), tp %d", adapter, frontend, channel.Number(), channel.Name(), channel.Transponder());
|
|
LostLock = false;
|
|
}
|
|
if (device->SdtFilter()->TransponderWrong()) {
|
|
isyslog("frontend %d/%d is not receiving transponder %d for channel %d (%s) - retuning", adapter, frontend, channel.Transponder(), channel.Number(), channel.Name());
|
|
device->SectionHandler()->SetStatus(false);
|
|
tunerStatus = tsSet;
|
|
lastDiseqc = NULL;
|
|
lastSource = 0;
|
|
continue;
|
|
}
|
|
tunerStatus = tsLocked;
|
|
locked.Broadcast();
|
|
lastTimeoutReport = 0;
|
|
}
|
|
else if (tunerStatus == tsLocked) {
|
|
LostLock = true;
|
|
isyslog("frontend %d/%d lost lock on channel %d (%s), tp %d", adapter, frontend, channel.Number(), channel.Name(), channel.Transponder());
|
|
tunerStatus = tsTuned;
|
|
Timer.Set(lockTimeout);
|
|
lastTimeoutReport = 0;
|
|
continue;
|
|
}
|
|
break;
|
|
default: esyslog("ERROR: unknown tuner status %d", tunerStatus);
|
|
}
|
|
newSet.TimedWait(mutex, WaitTime);
|
|
}
|
|
}
|
|
|
|
// --- cDvbSourceParam -------------------------------------------------------
|
|
|
|
class cDvbSourceParam : public cSourceParam {
|
|
private:
|
|
int param;
|
|
int srate;
|
|
cDvbTransponderParameters dtp;
|
|
public:
|
|
cDvbSourceParam(char Source, const char *Description);
|
|
virtual void SetData(cChannel *Channel);
|
|
virtual void GetData(cChannel *Channel);
|
|
virtual cOsdItem *GetOsdItem(void);
|
|
};
|
|
|
|
cDvbSourceParam::cDvbSourceParam(char Source, const char *Description)
|
|
:cSourceParam(Source, Description)
|
|
{
|
|
param = 0;
|
|
srate = 0;
|
|
}
|
|
|
|
void cDvbSourceParam::SetData(cChannel *Channel)
|
|
{
|
|
srate = Channel->Srate();
|
|
dtp.Parse(Channel->Parameters());
|
|
param = 0;
|
|
}
|
|
|
|
void cDvbSourceParam::GetData(cChannel *Channel)
|
|
{
|
|
Channel->SetTransponderData(Channel->Source(), Channel->Frequency(), srate, dtp.ToString(Source()), true);
|
|
}
|
|
|
|
cOsdItem *cDvbSourceParam::GetOsdItem(void)
|
|
{
|
|
char type = Source();
|
|
const tDvbParameterMap *SystemValues = type == 'S' ? SystemValuesSat : SystemValuesTerr;
|
|
#undef ST
|
|
#define ST(s) if (strchr(s, type))
|
|
switch (param++) {
|
|
case 0: ST(" S ") return new cMenuEditChrItem( tr("Polarization"), &dtp.polarization, "HVLR"); else return GetOsdItem();
|
|
case 1: ST(" ST") return new cMenuEditMapItem( tr("System"), &dtp.system, SystemValues); else return GetOsdItem();
|
|
case 2: ST(" CS ") return new cMenuEditIntItem( tr("Srate"), &srate); else return GetOsdItem();
|
|
case 3: ST("ACST") return new cMenuEditMapItem( tr("Inversion"), &dtp.inversion, InversionValues); else return GetOsdItem();
|
|
case 4: ST(" CST") return new cMenuEditMapItem( tr("CoderateH"), &dtp.coderateH, CoderateValues); else return GetOsdItem();
|
|
case 5: ST(" T") return new cMenuEditMapItem( tr("CoderateL"), &dtp.coderateL, CoderateValues); else return GetOsdItem();
|
|
case 6: ST("ACST") return new cMenuEditMapItem( tr("Modulation"), &dtp.modulation, ModulationValues); else return GetOsdItem();
|
|
case 7: ST(" T") return new cMenuEditMapItem( tr("Bandwidth"), &dtp.bandwidth, BandwidthValues); else return GetOsdItem();
|
|
case 8: ST(" T") return new cMenuEditMapItem( tr("Transmission"), &dtp.transmission, TransmissionValues); else return GetOsdItem();
|
|
case 9: ST(" T") return new cMenuEditMapItem( tr("Guard"), &dtp.guard, GuardValues); else return GetOsdItem();
|
|
case 10: ST(" T") return new cMenuEditMapItem( tr("Hierarchy"), &dtp.hierarchy, HierarchyValues); else return GetOsdItem();
|
|
case 11: ST(" S ") return new cMenuEditMapItem( tr("Rolloff"), &dtp.rollOff, RollOffValues); else return GetOsdItem();
|
|
case 12: ST(" ST") return new cMenuEditIntItem( tr("StreamId"), &dtp.streamId, 0, 255); else return GetOsdItem();
|
|
case 13: ST(" S ") return new cMenuEditMapItem( tr("Pilot"), &dtp.pilot, PilotValues); else return GetOsdItem();
|
|
case 14: ST(" T") return new cMenuEditIntItem( tr("T2SystemId"), &dtp.t2systemId, 0, 65535); else return GetOsdItem();
|
|
case 15: ST(" T") return new cMenuEditIntItem( tr("SISO/MISO"), &dtp.sisoMiso, 0, 1); else return GetOsdItem();
|
|
default: return NULL;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
// --- cDvbDevice ------------------------------------------------------------
|
|
|
|
bool cDvbDevice::useDvbDevices = true;
|
|
int cDvbDevice::setTransferModeForDolbyDigital = 1;
|
|
cMutex cDvbDevice::bondMutex;
|
|
|
|
cDvbDevice::cDvbDevice(int Adapter, int Frontend)
|
|
{
|
|
adapter = Adapter;
|
|
frontend = Frontend;
|
|
ciAdapter = NULL;
|
|
dvbTuner = NULL;
|
|
bondedDevice = NULL;
|
|
needsDetachBondedReceivers = false;
|
|
tsBuffer = NULL;
|
|
|
|
// Common Interface:
|
|
|
|
fd_ca = DvbOpen(DEV_DVB_CA, adapter, frontend, O_RDWR);
|
|
if (fd_ca >= 0)
|
|
ciAdapter = cDvbCiAdapter::CreateCiAdapter(this, fd_ca);
|
|
checkTsBuffer = false;
|
|
|
|
// The DVR device (will be opened and closed as needed):
|
|
|
|
fd_dvr = -1;
|
|
|
|
// We only check the devices that must be present - the others will be checked before accessing them://XXX
|
|
|
|
dvbTuner = new cDvbTuner(this, adapter, frontend);
|
|
|
|
StartSectionHandler();
|
|
}
|
|
|
|
cDvbDevice::~cDvbDevice()
|
|
{
|
|
StopSectionHandler();
|
|
delete dvbTuner;
|
|
delete ciAdapter;
|
|
UnBond();
|
|
// We're not explicitly closing any device files here, since this sometimes
|
|
// caused segfaults. Besides, the program is about to terminate anyway...
|
|
}
|
|
|
|
cString DvbName(const char *Name, int Adapter, int Frontend)
|
|
{
|
|
return cString::sprintf("%s/%s%d/%s%d", DEV_DVB_BASE, DEV_DVB_ADAPTER, Adapter, Name, Frontend);
|
|
}
|
|
|
|
int DvbOpen(const char *Name, int Adapter, int Frontend, int Mode, bool ReportError)
|
|
{
|
|
cString FileName = DvbName(Name, Adapter, Frontend);
|
|
int fd = open(FileName, Mode);
|
|
if (fd < 0 && ReportError)
|
|
LOG_ERROR_STR(*FileName);
|
|
return fd;
|
|
}
|
|
|
|
int cDvbDevice::Frontend(void) const
|
|
{
|
|
return dvbTuner ? dvbTuner->Frontend() : frontend;
|
|
}
|
|
|
|
bool cDvbDevice::Exists(int Adapter, int Frontend)
|
|
{
|
|
cString FileName = DvbName(DEV_DVB_FRONTEND, Adapter, Frontend);
|
|
if (access(FileName, F_OK) == 0) {
|
|
int f = open(FileName, O_RDONLY);
|
|
if (f >= 0) {
|
|
close(f);
|
|
return true;
|
|
}
|
|
else if (errno != ENODEV && errno != EINVAL)
|
|
LOG_ERROR_STR(*FileName);
|
|
}
|
|
else if (errno != ENOENT)
|
|
LOG_ERROR_STR(*FileName);
|
|
return false;
|
|
}
|
|
|
|
bool cDvbDevice::Probe(int Adapter, int Frontend)
|
|
{
|
|
cString FileName = DvbName(DEV_DVB_FRONTEND, Adapter, Frontend);
|
|
dsyslog("probing %s", *FileName);
|
|
for (cDvbDeviceProbe *dp = DvbDeviceProbes.First(); dp; dp = DvbDeviceProbes.Next(dp)) {
|
|
if (dp->Probe(Adapter, Frontend))
|
|
return true; // a plugin has created the actual device
|
|
}
|
|
dsyslog("creating cDvbDevice");
|
|
new cDvbDevice(Adapter, Frontend); // it's a "budget" device
|
|
return true;
|
|
}
|
|
|
|
cString cDvbDevice::DeviceType(void) const
|
|
{
|
|
if (dvbTuner)
|
|
return GetDeliverySystemName(dvbTuner->FrontendType());
|
|
return "";
|
|
}
|
|
|
|
cString cDvbDevice::DeviceName(void) const
|
|
{
|
|
if (dvbTuner)
|
|
return dvbTuner->FrontendName();
|
|
return "";
|
|
}
|
|
|
|
bool cDvbDevice::Initialize(void)
|
|
{
|
|
new cDvbSourceParam('A', "ATSC");
|
|
new cDvbSourceParam('C', "DVB-C");
|
|
new cDvbSourceParam('S', "DVB-S");
|
|
new cDvbSourceParam('T', "DVB-T");
|
|
cStringList Nodes;
|
|
cReadDir DvbDir(DEV_DVB_BASE);
|
|
if (DvbDir.Ok()) {
|
|
struct dirent *a;
|
|
while ((a = DvbDir.Next()) != NULL) {
|
|
if (strstr(a->d_name, DEV_DVB_ADAPTER) == a->d_name) {
|
|
int Adapter = strtol(a->d_name + strlen(DEV_DVB_ADAPTER), NULL, 10);
|
|
cReadDir AdapterDir(AddDirectory(DEV_DVB_BASE, a->d_name));
|
|
if (AdapterDir.Ok()) {
|
|
struct dirent *f;
|
|
while ((f = AdapterDir.Next()) != NULL) {
|
|
if (strstr(f->d_name, DEV_DVB_FRONTEND) == f->d_name) {
|
|
int Frontend = strtol(f->d_name + strlen(DEV_DVB_FRONTEND), NULL, 10);
|
|
if (access(DvbName(DEV_DVB_DEMUX, Adapter, Frontend), F_OK) == 0) { // we only create devices for actual demuxes
|
|
dsyslog("detected /dev/dvb/adapter%d/frontend%d", Adapter, Frontend);
|
|
Nodes.Append(strdup(cString::sprintf("%2d %2d", Adapter, Frontend)));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
int Found = 0;
|
|
int Used = 0;
|
|
if (Nodes.Size() > 0) {
|
|
Nodes.Sort();
|
|
for (int i = 0; i < Nodes.Size(); i++) {
|
|
int Adapter;
|
|
int Frontend;
|
|
if (2 == sscanf(Nodes[i], "%d %d", &Adapter, &Frontend)) {
|
|
if (Exists(Adapter, Frontend)) {
|
|
if (Found < MAXDEVICES) {
|
|
Found++;
|
|
if (useDvbDevices && UseDevice(NextCardIndex())) {
|
|
if (Probe(Adapter, Frontend))
|
|
Used++;
|
|
}
|
|
else {
|
|
dsyslog("skipped /dev/dvb/adapter%d/frontend%d", Adapter, Frontend);
|
|
NextCardIndex(1); // skips this one
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if (Found > 0) {
|
|
isyslog("found %d DVB device%s", Found, Found > 1 ? "s" : "");
|
|
if (Used != Found)
|
|
isyslog("using only %d DVB device%s", Used, Used != 1 ? "s" : "");
|
|
}
|
|
else
|
|
isyslog("no DVB device found");
|
|
return Found > 0;
|
|
}
|
|
|
|
bool cDvbDevice::BondDevices(const char *Bondings)
|
|
{
|
|
UnBondDevices();
|
|
if (Bondings) {
|
|
cSatCableNumbers SatCableNumbers(MAXDEVICES, Bondings);
|
|
for (int i = 0; i < cDevice::NumDevices(); i++) {
|
|
int d = SatCableNumbers.FirstDeviceIndex(i);
|
|
if (d >= 0) {
|
|
int ErrorDevice = 0;
|
|
if (cDevice *Device1 = cDevice::GetDevice(i)) {
|
|
if (cDevice *Device2 = cDevice::GetDevice(d)) {
|
|
if (cDvbDevice *DvbDevice1 = dynamic_cast<cDvbDevice *>(Device1)) {
|
|
if (cDvbDevice *DvbDevice2 = dynamic_cast<cDvbDevice *>(Device2)) {
|
|
if (!DvbDevice1->Bond(DvbDevice2))
|
|
return false; // Bond() has already logged the error
|
|
}
|
|
else
|
|
ErrorDevice = d + 1;
|
|
}
|
|
else
|
|
ErrorDevice = i + 1;
|
|
if (ErrorDevice) {
|
|
esyslog("ERROR: device '%d' in device bondings '%s' is not a cDvbDevice", ErrorDevice, Bondings);
|
|
return false;
|
|
}
|
|
}
|
|
else
|
|
ErrorDevice = d + 1;
|
|
}
|
|
else
|
|
ErrorDevice = i + 1;
|
|
if (ErrorDevice) {
|
|
esyslog("ERROR: unknown device '%d' in device bondings '%s'", ErrorDevice, Bondings);
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
void cDvbDevice::UnBondDevices(void)
|
|
{
|
|
for (int i = 0; i < cDevice::NumDevices(); i++) {
|
|
if (cDvbDevice *d = dynamic_cast<cDvbDevice *>(cDevice::GetDevice(i)))
|
|
d->UnBond();
|
|
}
|
|
}
|
|
|
|
bool cDvbDevice::Bond(cDvbDevice *Device)
|
|
{
|
|
cMutexLock MutexLock(&bondMutex);
|
|
if (!bondedDevice) {
|
|
if (Device != this) {
|
|
if ((ProvidesDeliverySystem(SYS_DVBS) || ProvidesDeliverySystem(SYS_DVBS2)) && (Device->ProvidesDeliverySystem(SYS_DVBS) || Device->ProvidesDeliverySystem(SYS_DVBS2))) {
|
|
if (dvbTuner && Device->dvbTuner && dvbTuner->Bond(Device->dvbTuner)) {
|
|
bondedDevice = Device->bondedDevice ? Device->bondedDevice : Device;
|
|
Device->bondedDevice = this;
|
|
dsyslog("device %d bonded with device %d", DeviceNumber() + 1, bondedDevice->DeviceNumber() + 1);
|
|
return true;
|
|
}
|
|
}
|
|
else
|
|
esyslog("ERROR: can't bond device %d with device %d (only DVB-S(2) devices can be bonded)", DeviceNumber() + 1, Device->DeviceNumber() + 1);
|
|
}
|
|
else
|
|
esyslog("ERROR: can't bond device %d with itself", DeviceNumber() + 1);
|
|
}
|
|
else
|
|
esyslog("ERROR: device %d already bonded with device %d, can't bond with device %d", DeviceNumber() + 1, bondedDevice->DeviceNumber() + 1, Device->DeviceNumber() + 1);
|
|
return false;
|
|
}
|
|
|
|
void cDvbDevice::UnBond(void)
|
|
{
|
|
cMutexLock MutexLock(&bondMutex);
|
|
if (cDvbDevice *d = bondedDevice) {
|
|
if (dvbTuner)
|
|
dvbTuner->UnBond();
|
|
dsyslog("device %d unbonded from device %d", DeviceNumber() + 1, bondedDevice->DeviceNumber() + 1);
|
|
while (d->bondedDevice != this)
|
|
d = d->bondedDevice;
|
|
if (d == bondedDevice)
|
|
d->bondedDevice = NULL;
|
|
else
|
|
d->bondedDevice = bondedDevice;
|
|
bondedDevice = NULL;
|
|
}
|
|
}
|
|
|
|
bool cDvbDevice::BondingOk(const cChannel *Channel, bool ConsiderOccupied) const
|
|
{
|
|
cMutexLock MutexLock(&bondMutex);
|
|
if (bondedDevice || Positioner())
|
|
return dvbTuner && dvbTuner->BondingOk(Channel, ConsiderOccupied);
|
|
return true;
|
|
}
|
|
|
|
bool cDvbDevice::HasCi(void)
|
|
{
|
|
return ciAdapter;
|
|
}
|
|
|
|
bool cDvbDevice::SetPid(cPidHandle *Handle, int Type, bool On)
|
|
{
|
|
if (Handle->pid) {
|
|
dmx_pes_filter_params pesFilterParams;
|
|
memset(&pesFilterParams, 0, sizeof(pesFilterParams));
|
|
if (On) {
|
|
if (Handle->handle < 0) {
|
|
Handle->handle = DvbOpen(DEV_DVB_DEMUX, adapter, frontend, O_RDWR | O_NONBLOCK, true);
|
|
if (Handle->handle < 0) {
|
|
LOG_ERROR;
|
|
return false;
|
|
}
|
|
}
|
|
pesFilterParams.pid = Handle->pid;
|
|
pesFilterParams.input = DMX_IN_FRONTEND;
|
|
pesFilterParams.output = DMX_OUT_TS_TAP;
|
|
pesFilterParams.pes_type= DMX_PES_OTHER;
|
|
pesFilterParams.flags = DMX_IMMEDIATE_START;
|
|
if (ioctl(Handle->handle, DMX_SET_PES_FILTER, &pesFilterParams) < 0) {
|
|
LOG_ERROR;
|
|
return false;
|
|
}
|
|
}
|
|
else if (!Handle->used) {
|
|
CHECK(ioctl(Handle->handle, DMX_STOP));
|
|
if (Type <= ptTeletext) {
|
|
pesFilterParams.pid = 0x1FFF;
|
|
pesFilterParams.input = DMX_IN_FRONTEND;
|
|
pesFilterParams.output = DMX_OUT_DECODER;
|
|
pesFilterParams.pes_type= DMX_PES_OTHER;
|
|
pesFilterParams.flags = DMX_IMMEDIATE_START;
|
|
CHECK(ioctl(Handle->handle, DMX_SET_PES_FILTER, &pesFilterParams));
|
|
}
|
|
close(Handle->handle);
|
|
Handle->handle = -1;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
#define RB_NUM_SECTIONS 8 // default: 2 sections = 8192 bytes
|
|
|
|
int cDvbDevice::OpenFilter(u_short Pid, u_char Tid, u_char Mask)
|
|
{
|
|
cString FileName = DvbName(DEV_DVB_DEMUX, adapter, frontend);
|
|
int f = open(FileName, O_RDWR | O_NONBLOCK);
|
|
if (f >= 0) {
|
|
if (Pid == EITPID) { // increase ringbuffer size for EIT
|
|
if (ioctl(f, DMX_SET_BUFFER_SIZE, MAX_SECTION_SIZE * RB_NUM_SECTIONS) < 0)
|
|
dsyslog("OpenFilter (pid=%d, tid=%02X): ioctl DMX_SET_BUFFER_SIZE failed", Pid, Tid);
|
|
}
|
|
dmx_sct_filter_params sctFilterParams;
|
|
memset(&sctFilterParams, 0, sizeof(sctFilterParams));
|
|
sctFilterParams.pid = Pid;
|
|
sctFilterParams.timeout = 0;
|
|
sctFilterParams.flags = DMX_IMMEDIATE_START;
|
|
sctFilterParams.filter.filter[0] = Tid;
|
|
sctFilterParams.filter.mask[0] = Mask;
|
|
if (ioctl(f, DMX_SET_FILTER, &sctFilterParams) >= 0)
|
|
return f;
|
|
else {
|
|
esyslog("ERROR: can't set filter (pid=%d, tid=%02X, mask=%02X): %m", Pid, Tid, Mask);
|
|
close(f);
|
|
}
|
|
}
|
|
else
|
|
esyslog("ERROR: can't open filter handle on '%s'", *FileName);
|
|
return -1;
|
|
}
|
|
|
|
void cDvbDevice::CloseFilter(int Handle)
|
|
{
|
|
close(Handle);
|
|
}
|
|
|
|
bool cDvbDevice::ProvidesDeliverySystem(int DeliverySystem) const
|
|
{
|
|
return dvbTuner->ProvidesDeliverySystem(DeliverySystem);
|
|
}
|
|
|
|
bool cDvbDevice::ProvidesSource(int Source) const
|
|
{
|
|
int type = Source & cSource::st_Mask;
|
|
return type == cSource::stNone
|
|
|| type == cSource::stAtsc && ProvidesDeliverySystem(SYS_ATSC)
|
|
|| type == cSource::stCable && (ProvidesDeliverySystem(SYS_DVBC_ANNEX_AC) || ProvidesDeliverySystem(SYS_DVBC_ANNEX_B))
|
|
|| type == cSource::stSat && (ProvidesDeliverySystem(SYS_DVBS) || ProvidesDeliverySystem(SYS_DVBS2))
|
|
|| type == cSource::stTerr && (ProvidesDeliverySystem(SYS_DVBT) || ProvidesDeliverySystem(SYS_DVBT2));
|
|
}
|
|
|
|
bool cDvbDevice::ProvidesTransponder(const cChannel *Channel) const
|
|
{
|
|
if (!ProvidesSource(Channel->Source()))
|
|
return false; // doesn't provide source
|
|
if (!dvbTuner->ProvidesFrontend(Channel))
|
|
return false; // requires modulation system which frontend doesn't provide
|
|
cDvbTransponderParameters dtp(Channel->Parameters());
|
|
if (!cSource::IsSat(Channel->Source()) ||
|
|
(!Setup.DiSEqC || Diseqcs.Get(DeviceNumber() + 1, Channel->Source(), Channel->Frequency(), dtp.Polarization(), NULL)))
|
|
return DeviceHooksProvidesTransponder(Channel);
|
|
return false;
|
|
}
|
|
|
|
bool cDvbDevice::ProvidesChannel(const cChannel *Channel, int Priority, bool *NeedsDetachReceivers) const
|
|
{
|
|
bool result = false;
|
|
bool hasPriority = Priority == IDLEPRIORITY || Priority > this->Priority();
|
|
bool needsDetachReceivers = false;
|
|
needsDetachBondedReceivers = false;
|
|
|
|
if (ProvidesTransponder(Channel)) {
|
|
result = hasPriority;
|
|
if (Priority > IDLEPRIORITY) {
|
|
if (Receiving()) {
|
|
if (dvbTuner->IsTunedTo(Channel)) {
|
|
if (Channel->Vpid() && !HasPid(Channel->Vpid()) || Channel->Apid(0) && !HasPid(Channel->Apid(0)) || Channel->Dpid(0) && !HasPid(Channel->Dpid(0))) {
|
|
if (CamSlot() && Channel->Ca() >= CA_ENCRYPTED_MIN) {
|
|
if (CamSlot()->CanDecrypt(Channel))
|
|
result = true;
|
|
else
|
|
needsDetachReceivers = true;
|
|
}
|
|
else
|
|
result = true;
|
|
}
|
|
else
|
|
result = true;
|
|
}
|
|
else
|
|
needsDetachReceivers = Receiving();
|
|
}
|
|
if (result) {
|
|
cMutexLock MutexLock(&bondMutex);
|
|
if (!BondingOk(Channel)) {
|
|
// This device is bonded, so we need to check the priorities of the others:
|
|
for (cDvbDevice *d = bondedDevice; d && d != this; d = d->bondedDevice) {
|
|
if (d->Priority() >= Priority) {
|
|
result = false;
|
|
break;
|
|
}
|
|
needsDetachReceivers |= d->Receiving();
|
|
}
|
|
needsDetachBondedReceivers = true;
|
|
needsDetachReceivers |= Receiving();
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if (NeedsDetachReceivers)
|
|
*NeedsDetachReceivers = needsDetachReceivers;
|
|
return result;
|
|
}
|
|
|
|
bool cDvbDevice::ProvidesEIT(void) const
|
|
{
|
|
return dvbTuner != NULL && DeviceHooksProvidesEIT();
|
|
}
|
|
|
|
int cDvbDevice::NumProvidedSystems(void) const
|
|
{
|
|
return dvbTuner ? dvbTuner->NumProvidedSystems() : 0;
|
|
}
|
|
|
|
const cPositioner *cDvbDevice::Positioner(void) const
|
|
{
|
|
return dvbTuner ? dvbTuner->Positioner() : NULL;
|
|
}
|
|
|
|
bool cDvbDevice::SignalStats(int &Valid, double *Strength, double *Cnr, double *BerPre, double *BerPost, double *Per, int *Status) const
|
|
{
|
|
return dvbTuner ? dvbTuner->GetSignalStats(Valid, Strength, Cnr, BerPre, BerPost, Per, Status) : false;
|
|
}
|
|
|
|
int cDvbDevice::SignalStrength(void) const
|
|
{
|
|
return dvbTuner ? dvbTuner->GetSignalStrength() : -1;
|
|
}
|
|
|
|
int cDvbDevice::SignalQuality(void) const
|
|
{
|
|
return dvbTuner ? dvbTuner->GetSignalQuality() : -1;
|
|
}
|
|
|
|
const cChannel *cDvbDevice::GetCurrentlyTunedTransponder(void) const
|
|
{
|
|
return dvbTuner ? dvbTuner->GetTransponder() : NULL;
|
|
}
|
|
|
|
bool cDvbDevice::IsTunedToTransponder(const cChannel *Channel) const
|
|
{
|
|
return dvbTuner ? dvbTuner->IsTunedTo(Channel) : false;
|
|
}
|
|
|
|
bool cDvbDevice::MaySwitchTransponder(const cChannel *Channel) const
|
|
{
|
|
return BondingOk(Channel, true) && cDevice::MaySwitchTransponder(Channel);
|
|
}
|
|
|
|
bool cDvbDevice::SetChannelDevice(const cChannel *Channel, bool LiveView)
|
|
{
|
|
if (dvbTuner->ProvidesFrontend(Channel, true)) {
|
|
dvbTuner->SetChannel(Channel);
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
bool cDvbDevice::HasLock(int TimeoutMs) const
|
|
{
|
|
return dvbTuner ? dvbTuner->Locked(TimeoutMs) : false;
|
|
}
|
|
|
|
void cDvbDevice::SetTransferModeForDolbyDigital(int Mode)
|
|
{
|
|
setTransferModeForDolbyDigital = Mode;
|
|
}
|
|
|
|
bool cDvbDevice::OpenDvr(void)
|
|
{
|
|
CloseDvr();
|
|
fd_dvr = DvbOpen(DEV_DVB_DVR, adapter, frontend, O_RDONLY | O_NONBLOCK, true);
|
|
if (fd_dvr >= 0)
|
|
tsBuffer = new cTSBuffer(fd_dvr, TSBUFFERSIZE, DeviceNumber() + 1);
|
|
return fd_dvr >= 0;
|
|
}
|
|
|
|
void cDvbDevice::CloseDvr(void)
|
|
{
|
|
if (fd_dvr >= 0) {
|
|
delete tsBuffer;
|
|
tsBuffer = NULL;
|
|
close(fd_dvr);
|
|
fd_dvr = -1;
|
|
}
|
|
}
|
|
|
|
bool cDvbDevice::GetTSPacket(uchar *&Data)
|
|
{
|
|
if (tsBuffer) {
|
|
if (cCamSlot *cs = CamSlot()) {
|
|
if (cs->WantsTsData()) {
|
|
int Available;
|
|
Data = tsBuffer->Get(&Available, checkTsBuffer);
|
|
if (!Data)
|
|
Available = 0;
|
|
Data = cs->Decrypt(Data, Available);
|
|
tsBuffer->Skip(Available);
|
|
checkTsBuffer = Data != NULL;
|
|
return true;
|
|
}
|
|
}
|
|
Data = tsBuffer->Get();
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
void cDvbDevice::DetachAllReceivers(void)
|
|
{
|
|
cMutexLock MutexLock(&bondMutex);
|
|
cDvbDevice *d = this;
|
|
do {
|
|
d->cDevice::DetachAllReceivers();
|
|
d = d->bondedDevice;
|
|
} while (d && d != this && needsDetachBondedReceivers);
|
|
needsDetachBondedReceivers = false;
|
|
}
|
|
|
|
// --- cDvbDeviceProbe -------------------------------------------------------
|
|
|
|
cList<cDvbDeviceProbe> DvbDeviceProbes;
|
|
|
|
cDvbDeviceProbe::cDvbDeviceProbe(void)
|
|
{
|
|
DvbDeviceProbes.Add(this);
|
|
}
|
|
|
|
cDvbDeviceProbe::~cDvbDeviceProbe()
|
|
{
|
|
DvbDeviceProbes.Del(this, false);
|
|
}
|
|
|
|
uint32_t cDvbDeviceProbe::GetSubsystemId(int Adapter, int Frontend)
|
|
{
|
|
uint32_t SubsystemId = 0;
|
|
cString FileName = cString::sprintf("/dev/dvb/adapter%d/frontend%d", Adapter, Frontend);
|
|
struct stat st;
|
|
if (stat(FileName, &st) == 0) {
|
|
cReadDir d("/sys/class/dvb");
|
|
if (d.Ok()) {
|
|
struct dirent *e;
|
|
while ((e = d.Next()) != NULL) {
|
|
if (strstr(e->d_name, "frontend")) {
|
|
FileName = cString::sprintf("/sys/class/dvb/%s/dev", e->d_name);
|
|
if (FILE *f = fopen(FileName, "r")) {
|
|
cReadLine ReadLine;
|
|
char *s = ReadLine.Read(f);
|
|
fclose(f);
|
|
unsigned Major;
|
|
unsigned Minor;
|
|
if (s && 2 == sscanf(s, "%u:%u", &Major, &Minor)) {
|
|
if (((Major << 8) | Minor) == st.st_rdev) {
|
|
FileName = cString::sprintf("/sys/class/dvb/%s/device/subsystem_vendor", e->d_name);
|
|
if ((f = fopen(FileName, "r")) != NULL) {
|
|
if (char *s = ReadLine.Read(f))
|
|
SubsystemId = strtoul(s, NULL, 0) << 16;
|
|
fclose(f);
|
|
}
|
|
else {
|
|
FileName = cString::sprintf("/sys/class/dvb/%s/device/idVendor", e->d_name);
|
|
if ((f = fopen(FileName, "r")) != NULL) {
|
|
if (char *s = ReadLine.Read(f))
|
|
SubsystemId = strtoul(s, NULL, 16) << 16;
|
|
fclose(f);
|
|
}
|
|
}
|
|
FileName = cString::sprintf("/sys/class/dvb/%s/device/subsystem_device", e->d_name);
|
|
if ((f = fopen(FileName, "r")) != NULL) {
|
|
if (char *s = ReadLine.Read(f))
|
|
SubsystemId |= strtoul(s, NULL, 0);
|
|
fclose(f);
|
|
}
|
|
else {
|
|
FileName = cString::sprintf("/sys/class/dvb/%s/device/idProduct", e->d_name);
|
|
if ((f = fopen(FileName, "r")) != NULL) {
|
|
if (char *s = ReadLine.Read(f))
|
|
SubsystemId |= strtoul(s, NULL, 16);
|
|
fclose(f);
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return SubsystemId;
|
|
}
|