lib/dvb/frontend.cpp: fix SNRdb calculation for 8PSK transponder (broken since update...

[enigma2.git] / lib / dvb / frontend.cpp

diff --git a/lib/dvb/frontend.cpp b/lib/dvb/frontend.cpp
index bd8f002876d45880bf3b660a9cf7dc398c77b094..01288d16cb581c1c3f61b64ac4f64afff87ad4a4 100644 (file)
--- a/lib/dvb/frontend.cpp
+++ b/lib/dvb/frontend.cpp
@@ -813,7 +813,7 @@ int eDVBFrontend::readFrontendData(int type)
                                        float fval1 = SDS_SNRE / 268435456.0,
                                                  fval2, fval3, fval4;
 
-                                       if (parm_u_qpsk_fec_inner <= FEC_S2_QPSK_9_10) // DVB-S2 QPSK
+                                       if (oparm.sat.modulation == eDVBFrontendParametersSatellite::Modulation_QPSK)
                                        {
                                                fval2 = 6.76;
                                                fval3 = 4.35;
@@ -906,6 +906,19 @@ int eDVBFrontend::readFrontendData(int type)
                        }
                        else if (strstr(m_description, "BCM4506") || strstr(m_description, "BCM4505"))
                                ret = (snr * 100) >> 8;
+                       else if (!strcmp(m_description, "CXD1981"))
+                       {
+                               int mse = (~snr) & 0xFF;
+                               switch (parm_u_qam_modulation) {
+                                       case QAM_16:
+                                       case QAM_64:
+                                       case QAM_256: ret = (int)(-950 * log(((double)mse) / 760)); break;
+                                       case QAM_32:
+                                       case QAM_128: ret = (int)(-875 * log(((double)mse) / 650)); break;
+
+                                       default: break;
+                               }
+                       }
 
                        if (type == signalQuality)
                        {
@@ -1076,6 +1089,7 @@ static void fillDictWithSatelliteData(ePyObject dict, const FRONTENDPARAMETERS &
        case FEC_AUTO: tmp = eDVBFrontendParametersSatellite::FEC_Auto; break;
        default: eDebug("got unsupported FEC from frontend! report as FEC_AUTO!\n");
        }
+       PutToDict(dict, "fec_inner", tmp);
 
        switch (p[0].u.data)
        {
@@ -1124,7 +1138,7 @@ static void fillDictWithSatelliteData(ePyObject dict, const FRONTENDPARAMETERS &
        PutToDict(dict, "orbital_position", orb_pos);
        PutToDict(dict, "polarization", polarization);
 
-       switch(parm_u_qpsk_fec_inner)
+       switch((int)parm_u_qpsk_fec_inner)
        {
        case FEC_1_2: tmp = eDVBFrontendParametersSatellite::FEC_1_2; break;
        case FEC_2_3: tmp = eDVBFrontendParametersSatellite::FEC_2_3; break;
@@ -1458,9 +1472,11 @@ int eDVBFrontend::readInputpower()
                return 0;
        int power=m_slotid;  // this is needed for read inputpower from the correct tuner !
        char proc_name[64];
-       sprintf(proc_name, "/proc/stb/fp/lnb_sense%d", m_slotid);
-       FILE *f=fopen(proc_name, "r");
-       if (f)
+       char proc_name2[64];
+       sprintf(proc_name, "/proc/stb/frontend/%d/lnb_sense", m_slotid);
+       sprintf(proc_name2, "/proc/stb/fp/lnb_sense%d", m_slotid);
+       FILE *f;
+       if ((f=fopen(proc_name, "r")) || (f=fopen(proc_name2, "r")))
        {
                if (fscanf(f, "%d", &power) != 1)
                        eDebug("read %s failed!! (%m)", proc_name);