diff options
Diffstat (limited to 'dvbapi.c')
| -rw-r--r-- | dvbapi.c | 207 |
1 files changed, 108 insertions, 99 deletions
@@ -4,7 +4,7 @@ * See the main source file 'vdr.c' for copyright information and * how to reach the author. * - * $Id: dvbapi.c 1.93 2001/07/28 11:45:04 kls Exp $ + * $Id: dvbapi.c 1.94 2001/07/29 09:00:19 kls Exp $ */ #include "dvbapi.h" @@ -2116,6 +2116,15 @@ bool cDvbApi::SetChannel(int ChannelNumber, int FrequencyMHz, char Polarization, StopTransfer(); StopReplay(); + // Must set this anyway to avoid getting stuck when switching through + // channels with 'Up' and 'Down' keys: + currentChannel = ChannelNumber; + vPid = Vpid; + aPid1 = Apid1; + aPid2 = Apid2; + dPid1 = Dpid1; + dPid2 = Dpid2; + // Avoid noise while switching: if (fd_video >= 0 && fd_audio >= 0) { @@ -2125,150 +2134,150 @@ bool cDvbApi::SetChannel(int ChannelNumber, int FrequencyMHz, char Polarization, CHECK(ioctl(fd_audio, AUDIO_CLEAR_BUFFER)); } - // Turn off current PIDs: + // If this card can't receive this channel, we must not actually switch + // the channel here, because that would irritate the driver when we + // start replaying in Transfer Mode immediately after switching the channel: + bool NeedsTransferMode = (this == PrimaryDvbApi && Ca && Ca != Index() + 1); - SetVpid( 0x1FFF, DMX_OUT_DECODER); - SetApid1(0x1FFF, DMX_OUT_DECODER); - SetApid2(0x1FFF, DMX_OUT_DECODER); - SetDpid1(0x1FFF, DMX_OUT_DECODER); - SetDpid2(0x1FFF, DMX_OUT_DECODER); - SetTpid( 0x1FFF, DMX_OUT_DECODER); + if (!NeedsTransferMode) { - // Must set this anyway to avoid getting stuck when switching through - // channels with 'Up' and 'Down' keys: - currentChannel = ChannelNumber; + // Turn off current PIDs: - bool ChannelSynced = false; + SetVpid( 0x1FFF, DMX_OUT_DECODER); + SetApid1(0x1FFF, DMX_OUT_DECODER); + SetApid2(0x1FFF, DMX_OUT_DECODER); + SetDpid1(0x1FFF, DMX_OUT_DECODER); + SetDpid2(0x1FFF, DMX_OUT_DECODER); + SetTpid( 0x1FFF, DMX_OUT_DECODER); - if (fd_qpskfe >= 0 && fd_sec >= 0) { // DVB-S + bool ChannelSynced = false; - // Frequency offsets: + if (fd_qpskfe >= 0 && fd_sec >= 0) { // DVB-S - unsigned int freq = FrequencyMHz; - int tone = SEC_TONE_OFF; + // Frequency offsets: - if (freq < (unsigned int)Setup.LnbSLOF) { - freq -= Setup.LnbFrequLo; - tone = SEC_TONE_OFF; - } - else { - freq -= Setup.LnbFrequHi; - tone = SEC_TONE_ON; - } + unsigned int freq = FrequencyMHz; + int tone = SEC_TONE_OFF; + + if (freq < (unsigned int)Setup.LnbSLOF) { + freq -= Setup.LnbFrequLo; + tone = SEC_TONE_OFF; + } + else { + freq -= Setup.LnbFrequHi; + tone = SEC_TONE_ON; + } - qpskParameters qpsk; - qpsk.iFrequency = freq * 1000UL; - qpsk.SymbolRate = Srate * 1000UL; - qpsk.FEC_inner = FEC_AUTO; + qpskParameters qpsk; + qpsk.iFrequency = freq * 1000UL; + qpsk.SymbolRate = Srate * 1000UL; + qpsk.FEC_inner = FEC_AUTO; - int volt = (Polarization == 'v' || Polarization == 'V') ? SEC_VOLTAGE_13 : SEC_VOLTAGE_18; + int volt = (Polarization == 'v' || Polarization == 'V') ? SEC_VOLTAGE_13 : SEC_VOLTAGE_18; - // DiseqC: + // DiseqC: - secCommand scmd; - scmd.type = 0; - scmd.u.diseqc.addr = 0x10; - scmd.u.diseqc.cmd = 0x38; - scmd.u.diseqc.numParams = 1; - scmd.u.diseqc.params[0] = 0xF0 | ((Diseqc * 4) & 0x0F) | (tone == SEC_TONE_ON ? 1 : 0) | (volt == SEC_VOLTAGE_18 ? 2 : 0); + secCommand scmd; + scmd.type = 0; + scmd.u.diseqc.addr = 0x10; + scmd.u.diseqc.cmd = 0x38; + scmd.u.diseqc.numParams = 1; + scmd.u.diseqc.params[0] = 0xF0 | ((Diseqc * 4) & 0x0F) | (tone == SEC_TONE_ON ? 1 : 0) | (volt == SEC_VOLTAGE_18 ? 2 : 0); - secCmdSequence scmds; - scmds.voltage = volt; - scmds.miniCommand = SEC_MINI_NONE; - scmds.continuousTone = tone; - scmds.numCommands = Setup.DiSEqC ? 1 : 0; - scmds.commands = &scmd; + secCmdSequence scmds; + scmds.voltage = volt; + scmds.miniCommand = SEC_MINI_NONE; + scmds.continuousTone = tone; + scmds.numCommands = Setup.DiSEqC ? 1 : 0; + scmds.commands = &scmd; - CHECK(ioctl(fd_sec, SEC_SEND_SEQUENCE, &scmds)); + CHECK(ioctl(fd_sec, SEC_SEND_SEQUENCE, &scmds)); - // Tuning: + // Tuning: - CHECK(ioctl(fd_qpskfe, QPSK_TUNE, &qpsk)); + CHECK(ioctl(fd_qpskfe, QPSK_TUNE, &qpsk)); - // Wait for channel sync: + // Wait for channel sync: - if (cFile::FileReady(fd_qpskfe, 5000)) { - qpskEvent event; - int res = ioctl(fd_qpskfe, QPSK_GET_EVENT, &event); - if (res >= 0) - ChannelSynced = event.type == FE_COMPLETION_EV; + if (cFile::FileReady(fd_qpskfe, 5000)) { + qpskEvent event; + int res = ioctl(fd_qpskfe, QPSK_GET_EVENT, &event); + if (res >= 0) + ChannelSynced = event.type == FE_COMPLETION_EV; + else + esyslog(LOG_ERR, "ERROR %d in qpsk get event", res); + } else - esyslog(LOG_ERR, "ERROR %d in qpsk get event", res); + esyslog(LOG_ERR, "ERROR: timeout while tuning\n"); } - else - esyslog(LOG_ERR, "ERROR: timeout while tuning\n"); - } - else if (fd_qamfe >= 0) { // DVB-C + else if (fd_qamfe >= 0) { // DVB-C - // Frequency and symbol rate: + // Frequency and symbol rate: - qamParameters qam; - qam.Frequency = FrequencyMHz * 1000000UL; - qam.SymbolRate = Srate * 1000UL; - qam.FEC_inner = FEC_AUTO; - qam.QAM = QAM_64; + qamParameters qam; + qam.Frequency = FrequencyMHz * 1000000UL; + qam.SymbolRate = Srate * 1000UL; + qam.FEC_inner = FEC_AUTO; + qam.QAM = QAM_64; - // Tuning: + // Tuning: - CHECK(ioctl(fd_qamfe, QAM_TUNE, &qam)); + CHECK(ioctl(fd_qamfe, QAM_TUNE, &qam)); - // Wait for channel sync: + // Wait for channel sync: - if (cFile::FileReady(fd_qamfe, 5000)) { - qamEvent event; - int res = ioctl(fd_qamfe, QAM_GET_EVENT, &event); - if (res >= 0) - ChannelSynced = event.type == FE_COMPLETION_EV; + if (cFile::FileReady(fd_qamfe, 5000)) { + qamEvent event; + int res = ioctl(fd_qamfe, QAM_GET_EVENT, &event); + if (res >= 0) + ChannelSynced = event.type == FE_COMPLETION_EV; + else + esyslog(LOG_ERR, "ERROR %d in qam get event", res); + } else - esyslog(LOG_ERR, "ERROR %d in qam get event", res); + esyslog(LOG_ERR, "ERROR: timeout while tuning\n"); + } + else { + esyslog(LOG_ERR, "ERROR: attempt to set channel without DVB-S or DVB-C device"); + return false; } - else - esyslog(LOG_ERR, "ERROR: timeout while tuning\n"); - } - else { - esyslog(LOG_ERR, "ERROR: attempt to set channel without DVB-S or DVB-C device"); - return false; - } - if (!ChannelSynced) { - esyslog(LOG_ERR, "ERROR: channel %d not sync'ed!", ChannelNumber); - if (this == PrimaryDvbApi) - cThread::RaisePanic(); - return false; - } + if (!ChannelSynced) { + esyslog(LOG_ERR, "ERROR: channel %d not sync'ed!", ChannelNumber); + if (this == PrimaryDvbApi) + cThread::RaisePanic(); + return false; + } - // PID settings: + // PID settings: - vPid = Vpid; - aPid1 = Apid1; - aPid2 = Apid2; - dPid1 = Dpid1; - dPid2 = Dpid2; - if (!SetPids(false)) { - esyslog(LOG_ERR, "ERROR: failed to set PIDs for channel %d", ChannelNumber); - return false; + if (!SetPids(false)) { + esyslog(LOG_ERR, "ERROR: failed to set PIDs for channel %d", ChannelNumber); + return false; + } + SetTpid(Tpid, DMX_OUT_DECODER); + if (fd_audio >= 0) + CHECK(ioctl(fd_audio, AUDIO_SET_AV_SYNC, true)); } - SetTpid(Tpid, DMX_OUT_DECODER); - if (fd_audio >= 0) - CHECK(ioctl(fd_audio, AUDIO_SET_AV_SYNC, true)); + if (this == PrimaryDvbApi && siProcessor) siProcessor->SetCurrentServiceID(Pnr); - + // If this DVB card can't receive this channel, let's see if we can // use the card that actually can receive it and transfer data from there: - if (this == PrimaryDvbApi && Ca && Ca != Index() + 1) { + if (NeedsTransferMode) { cDvbApi *CaDvbApi = GetDvbApi(Ca, 0); if (CaDvbApi) { if (!CaDvbApi->Recording()) { if (CaDvbApi->SetChannel(ChannelNumber, FrequencyMHz, Polarization, Diseqc, Srate, Vpid, Apid1, Apid2, Dpid1, Dpid2, Tpid, Ca, Pnr)) { - usleep(500000); // avoids distortions (apparently switching into replay mode immediately after tuning causes problems) SetModeReplay(); transferringFromDvbApi = CaDvbApi->StartTransfer(fd_video); } } } } + if (fd_video >= 0 && fd_audio >= 0) { CHECK(ioctl(fd_audio, AUDIO_SET_MUTE, false)); CHECK(ioctl(fd_video, VIDEO_SET_BLANK, false)); |