code.vuplus.com Git - vuplus_dvbapp/blob - lib/dvb/fccdecoder.cpp

   1 #include <lib/dvb/fccdecoder.h>
   2 #include <lib/base/eerror.h>
   3
   4 #include <fcntl.h>
   5 #include <sys/ioctl.h>
   6 #include <sys/types.h>
   7 #include <sys/stat.h>
   8
   9 bool eFCCDecoder::isDestroyed = false;
  10 eFCCDecoder::eFCCDecoder()
  11 {
  12         int index = 0;
  13
  14         eDebug("[eFCCDecoder] scanning for FCC device files..");
  15         while(1)
  16         {
  17                 struct stat s;
  18                 char filename[128];
  19                 sprintf(filename, "/dev/fcc%d", index);
  20                 if (stat(filename, &s))
  21                         break;
  22
  23                 eDebug("[eFCCDecoder] %s found..", filename);
  24                 m_fccs.push_back(-1);
  25                 index++;
  26         }
  27 }
  28
  29 eFCCDecoder::~eFCCDecoder()
  30 {
  31         isDestroyed = true;
  32 }
  33
  34 int eFCCDecoder::allocateFcc()
  35 {
  36         int fccFd = -1;
  37         for(unsigned int i = 0; i < m_fccs.size(); i++)
  38         {
  39                 if (m_fccs[i]== -1)
  40                 {
  41                         char filename[128];
  42                         sprintf(filename, "/dev/fcc%d", i);
  43
  44                         fccFd = ::open(filename, O_RDWR);
  45                         if (fccFd < 0)
  46                                 eDebug("[eFCCDecoder] open %s failed!", filename);
  47
  48                         else
  49                                 eDebug("[eFCCDecoder] alloc %s", filename);
  50
  51                         m_fccs[i] = fccFd;
  52                         break;
  53                 }
  54         }
  55
  56         return fccFd;
  57 }
  58
  59 void eFCCDecoder::freeFcc(int fccFd)
  60 {
  61         if (fccFd < 0)
  62                 return;
  63
  64         for(unsigned int i = 0; i < m_fccs.size(); i++)
  65         {
  66                 if (m_fccs[i]== fccFd)
  67                 {
  68                         m_fccs[i] = -1;
  69                         eDebug("[eFCCDecoder] close /dev/fcc%d", i);
  70                         ::close(fccFd);
  71                         break;
  72                 }
  73         }
  74 }
  75