lib/driver/rcconsole.cpp

   1 #include <lib/base/init.h>
   2 #include <lib/base/init_num.h>
   3 #include <lib/base/eerror.h>
   4 #include <lib/driver/rcconsole.h>
   5 #include <stdio.h>
   6 #include <fcntl.h>
   7
   8 eRCConsoleDriver::eRCConsoleDriver(const char *filename): eRCDriver(eRCInput::getInstance())
   9 {
  10         handle=open(filename, O_RDONLY|O_NONBLOCK);
  11         if (handle<0)
  12         {
  13                 eDebug("failed to open %s", filename);
  14                 sn=0;
  15         } else
  16         {
  17                 sn=eSocketNotifier::create(eApp, handle, eSocketNotifier::Read);
  18                 CONNECT(sn->activated, eRCConsoleDriver::keyPressed);
  19                 eRCInput::getInstance()->setFile(handle);
  20         }
  21
  22                 /* set console mode */
  23         struct termios t;
  24         tcgetattr(handle, &t);
  25         ot = t;
  26         t.c_lflag &= ~(ECHO | ICANON | ECHOK | ECHOE | ECHONL);
  27         tcsetattr(handle, TCSANOW,&t);
  28 }
  29
  30 eRCConsoleDriver::~eRCConsoleDriver()
  31 {
  32         tcsetattr(handle,TCSANOW, &ot);
  33         if (handle>=0)
  34                 close(handle);
  35 }
  36
  37 void eRCConsoleDriver::keyPressed(int)
  38 {
  39         unsigned char data[16];
  40         unsigned char *d = data;
  41         int num = read(handle, data, 16);
  42         int code=-1;
  43
  44         int km = input->getKeyboardMode();
  45
  46         if (km == eRCInput::kmNone)
  47                 return;
  48
  49         while (num--)
  50         {
  51 //              eDebug("console code %08x\n", *d);
  52                 if (km == eRCInput::kmAll)
  53                         code = *d++;
  54                 else
  55                 {
  56                         if (*d == 27) // escape code
  57                         {
  58                                 while (num)
  59                                 {
  60                                         num--;
  61                                         if (*++d != '[')
  62                                                 break;
  63                                 }
  64                                 code = -1;
  65                         } else
  66                                 code = *d;
  67                         ++d;
  68
  69                         if (code < 32)                  /* control characters */
  70                                 code = -1;
  71                         else switch(code)
  72                         {
  73                         case 0x7E:  // mute, einfg, entf
  74                         case 0x7F:  // backspace
  75                         code = -1;
  76                         default:
  77                                 break;
  78                         }
  79                 }
  80
  81                 if (code != -1)
  82                         for (std::list<eRCDevice*>::iterator i(listeners.begin()); i!=listeners.end(); ++i)
  83                         {
  84 //                              eDebug("ascii %08x", code);
  85                                 (*i)->handleCode(code);
  86                         }
  87         }
  88 }
  89
  90 void eRCConsole::handleCode(long code)
  91 {
  92         input->keyPressed(eRCKey(this, code, eRCKey::flagAscii));
  93 }
  94
  95 eRCConsole::eRCConsole(eRCDriver *driver)
  96                         : eRCDevice("Console", driver)
  97 {
  98 }
  99
 100 const char *eRCConsole::getDescription() const
 101 {
 102         return "Console";
 103 }
 104
 105 const char *eRCConsole::getKeyDescription(const eRCKey &key) const
 106 {
 107         return 0;
 108 }
 109
 110 int eRCConsole::getKeyCompatibleCode(const eRCKey &key) const
 111 {
 112         return key.code;
 113 }
 114
 115 class eRCConsoleInit
 116 {
 117         eRCConsoleDriver driver;
 118         eRCConsole device;
 119 public:
 120         eRCConsoleInit(): driver("/dev/vc/0"), device(&driver)
 121         {
 122         }
 123 };
 124
 125 eAutoInitP0<eRCConsoleInit> init_rcconsole(eAutoInitNumbers::rc+1, "Console RC Driver");