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| author | ghost <andreas.monzner@multimedia-labs.de> | 2008-12-11 16:37:51 +0100 |
|---|---|---|
| committer | ghost <andreas.monzner@multimedia-labs.de> | 2008-12-11 16:37:51 +0100 |
| commit | 0ef515315550e2aede2418565199f9a14c31b04b (patch) | |
| tree | 06ce400c76e743a4063bdae6c323557a560f9da0 /lib/dvb/frontend.cpp | |
| parent | a95eebf5f729e64a319383e81ca142274b73974d (diff) | |
| download | enigma2-0ef515315550e2aede2418565199f9a14c31b04b.tar.gz enigma2-0ef515315550e2aede2418565199f9a14c31b04b.zip | |
change snr / snr dB caluculation a bit
Diffstat (limited to 'lib/dvb/frontend.cpp')
| -rw-r--r-- | lib/dvb/frontend.cpp | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/lib/dvb/frontend.cpp b/lib/dvb/frontend.cpp index af974c81..f18c3b9e 100644 --- a/lib/dvb/frontend.cpp +++ b/lib/dvb/frontend.cpp @@ -718,6 +718,7 @@ int eDVBFrontend::readFrontendData(int type) case signalQuality: case signalQualitydB: /* this will move into the driver */ { + int sat_max = 1600; // for stv0288 / bsbe2 int ret = 0x12345678; uint16_t snr=0; if (m_simulate) @@ -779,8 +780,8 @@ int eDVBFrontend::readFrontendData(int type) snr_in_db = fval1; } #endif + sat_max = 1750; ret = (int)(snr_in_db * 100); - ret -= 150; // -1.5db for latest bcm4501 firmware.. } else if (strstr(m_description, "Alps BSBE1 C01A") || !strcmp(m_description, "Alps -S(STV0288)")) @@ -830,6 +831,7 @@ int eDVBFrontend::readFrontendData(int type) !strcmp(m_description, "Philips -S") || !strcmp(m_description, "LG -S") ) { + sat_max = 1500; ret = (int)((snr-39075)/17.647); } else if (!strcmp(m_description, "Alps BSBE2")) { @@ -858,8 +860,8 @@ int eDVBFrontend::readFrontendData(int type) return snr; switch(m_type) { - case feSatellite: // we assume a max of 16.0db here - return ret >= 1600 ? 65536 : ret * 65536 / 1600; + case feSatellite: + return ret >= sat_max ? 65536 : ret * 65536 / sat_max; case feCable: // we assume a max of 42db here return ret >= 4200 ? 65536 : ret * 65536 / 4200; case feTerrestrial: // we assume a max of 24db here |