add possibility to read lnb power via /proc/stb/fp (when available)

fix endless loop when a frontend which not needs the rotor workaround is
used

diff --git a/lib/dvb/frontend.cpp b/lib/dvb/frontend.cpp
index c8d6d15fe074879200f0f49b5285162c56c8ba5a..c6a520567f894b778ed1f1c8e29bcce0dd8bf6d8 100644 (file)
--- a/lib/dvb/frontend.cpp
+++ b/lib/dvb/frontend.cpp
@@ -1159,21 +1159,34 @@ void eDVBFrontend::getFrontendData(ePyObject dest)
 int eDVBFrontend::readInputpower()
 {
        int power=m_slotid;  // this is needed for read inputpower from the correct tuner !
-
-       // open front prozessor
-       int fp=::open("/dev/dbox/fp0", O_RDWR);
-       if (fp < 0)
+       char proc_name[64];
+       sprintf(proc_name, "/proc/stb/fp/lnb_sense%d", m_slotid);
+       FILE *f=fopen(proc_name, "r");
+       if (f)
        {
-               eDebug("couldn't open fp");
-               return -1;
+               if (fscanf(f, "%08x", &power) != 1)
+                       eDebug("read %s failed!! (%m)", proc_name);
+               else
+                       eDebug("%s is %d\n", proc_name, power);
+               fclose(f);
        }
-       static bool old_fp = (::ioctl(fp, FP_IOCTL_GET_ID) < 0);
-       if ( ioctl( fp, old_fp ? 9 : 0x100, &power ) < 0 )
+       else
        {
-               eDebug("FP_IOCTL_GET_LNB_CURRENT failed (%m)");
-               return -1;
+               // open front prozessor
+               int fp=::open("/dev/dbox/fp0", O_RDWR);
+               if (fp < 0)
+               {
+                       eDebug("couldn't open fp");
+                       return -1;
+               }
+               static bool old_fp = (::ioctl(fp, FP_IOCTL_GET_ID) < 0);
+               if ( ioctl( fp, old_fp ? 9 : 0x100, &power ) < 0 )
+               {
+                       eDebug("FP_IOCTL_GET_LNB_CURRENT failed (%m)");
+                       return -1;
+               }
+               ::close(fp);
        }
-       ::close(fp);
 
        return power;
 }
@@ -1446,37 +1459,37 @@ void eDVBFrontend::tuneLoop()  // called by m_tuneTimer
                                break;
                        case eSecCommand::SET_POWER_LIMITING_MODE:
                        {
-                               if (!m_need_rotor_workaround)
-                                       break;
-
-                               char dev[16];
-
-                               // FIXMEEEEEE hardcoded i2c devices for dm7025 and dm8000
-                               if (m_slotid < 2)
-                                       sprintf(dev, "/dev/i2c/%d", m_slotid);
-                               else if (m_slotid == 2)
-                                       sprintf(dev, "/dev/i2c/2"); // first nim socket on DM8000 use /dev/i2c/2
-                               else if (m_slotid == 3)
-                                       sprintf(dev, "/dev/i2c/4"); // second nim socket on DM8000 use /dev/i2c/4
-                               int fd = ::open(dev, O_RDWR);
-
-                               unsigned char data[2];
-                               ::ioctl(fd, I2C_SLAVE_FORCE, 0x10 >> 1);
-                               if(::read(fd, data, 1) != 1)
-                                       eDebug("[SEC] error read lnbp (%m)");
-                               if ( m_sec_sequence.current()->mode == eSecCommand::modeStatic )
-                               {
-                                       data[0] |= 0x80;  // enable static current limiting
-                                       eDebug("[SEC] set static current limiting");
-                               }
-                               else
+                               if (m_need_rotor_workaround)
                                {
-                                       data[0] &= ~0x80;  // enable dynamic current limiting
-                                       eDebug("[SEC] set dynamic current limiting");
+                                       char dev[16];
+
+                                       // FIXMEEEEEE hardcoded i2c devices for dm7025 and dm8000
+                                       if (m_slotid < 2)
+                                               sprintf(dev, "/dev/i2c/%d", m_slotid);
+                                       else if (m_slotid == 2)
+                                               sprintf(dev, "/dev/i2c/2"); // first nim socket on DM8000 use /dev/i2c/2
+                                       else if (m_slotid == 3)
+                                               sprintf(dev, "/dev/i2c/4"); // second nim socket on DM8000 use /dev/i2c/4
+                                       int fd = ::open(dev, O_RDWR);
+
+                                       unsigned char data[2];
+                                       ::ioctl(fd, I2C_SLAVE_FORCE, 0x10 >> 1);
+                                       if(::read(fd, data, 1) != 1)
+                                               eDebug("[SEC] error read lnbp (%m)");
+                                       if ( m_sec_sequence.current()->mode == eSecCommand::modeStatic )
+                                       {
+                                               data[0] |= 0x80;  // enable static current limiting
+                                               eDebug("[SEC] set static current limiting");
+                                       }
+                                       else
+                                       {
+                                               data[0] &= ~0x80;  // enable dynamic current limiting
+                                               eDebug("[SEC] set dynamic current limiting");
+                                       }
+                                       if(::write(fd, data, 1) != 1)
+                                               eDebug("[SEC] error write lnbp (%m)");
+                                       ::close(fd);
                                }
-                               if(::write(fd, data, 1) != 1)
-                                       eDebug("[SEC] error write lnbp (%m)");
-                               ::close(fd);
                                ++m_sec_sequence.current();
                                break;
                        }