Esempio n. 1
0
static int
brl_construct (BrailleDisplay *brl, char **parameters, const char *device) {
  if (!isSerialDevice(&device)) {
     unsupportedDevice(device);
     return 0;
  }

  if ((serialDevice = serialOpenDevice(device))) {
    if (serialRestartDevice(serialDevice, serialBaud)) {
      static const unsigned char request[] = {BNO_DESCRIBE};
      charactersPerSecond = serialBaud / 10;
      if (writePacket(brl, request, sizeof(request)) != -1) {
        while (serialAwaitInput(serialDevice, 100)) {
          ResponsePacket response;
          int size = getPacket(&response);
          if (size) {
            if (response.data.code == BNI_DESCRIBE) {
              statusCells = response.data.values.description.statusCells;
              brl->textColumns = response.data.values.description.textCells;
              brl->textRows = 1;
              brl->keyBindings = "keys";

              if ((statusCells == 5) && (brl->textColumns == 30)) {
                statusCells -= 2;
                brl->textColumns += 2;
              }
              dataCells = brl->textColumns * brl->textRows;
              cellCount = statusCells + dataCells;

              makeOutputTable(dotsTable_ISO11548_1);
              makeInputTable();

              if ((cellBuffer = malloc(cellCount))) {
                memset(cellBuffer, 0, cellCount);
                statusArea = cellBuffer;
                dataArea = statusArea + statusCells;
                refreshCells(brl);
                persistentKeyboardMode = KBM_NAVIGATE;
                temporaryKeyboardMode = persistentKeyboardMode;
                persistentRoutingOperation = BRL_BLK_ROUTE;
                temporaryRoutingOperation = persistentRoutingOperation;
                return 1;
              } else {
                logSystemError("cell buffer allocation");
              }
            } else {
              logUnexpectedPacket(response.bytes, size);
            }
          }
        }
      }
    }
    serialCloseDevice(serialDevice);
    serialDevice = NULL;
  }
  return 0;
}
Esempio n. 2
0
static int
brl_construct (BrailleDisplay *brl, char **parameters, const char *device) {
  if (!isSerialDevice(&device)) {
    unsupportedDevice(device);
    return 0;
  }

  if ((serialDevice = serialOpenDevice(device))) {
    if (serialRestartDevice(serialDevice, serialBaud)) {
      serialCharactersPerSecond = serialBaud / serialGetCharacterBits(serialDevice);

      /* hm, how to switch to 38400 ? 
      static const unsigned char sequence[] = {ESC, 'V', CR};
      writeData(brl, sequence, sizeof(sequence));
      serialDiscardInput(serialDevice);
      serialSetBaud(serialDevice, 38400);
      */

      {
        static const DotsTable dots = {
          0X01, 0X02, 0X04, 0X80, 0X40, 0X20, 0X08, 0X10
        };
        makeOutputTable(dots);
      }

      clearCells(textCells,  sizeof(textCells));
      clearCells(statusCells,  sizeof(statusCells));
      resetInputMode();

      cursorDots = 0XFF;
      cursorOffset = sizeof(textCells) / 2;

      brl->textColumns = sizeof(textCells);
      brl->textRows = 1;
      brl->statusColumns = sizeof(statusCells);
      brl->statusRows = 1;

      beep(brl);
      return 1;
    }

    serialCloseDevice(serialDevice);
    serialDevice = NULL;
  }

  return 0;
}
Esempio n. 3
0
static int
brl_construct (BrailleDisplay *brl, char **parameters, const char *device) {
  if (!isSerialDevice(&device)) {
    unsupportedDevice(device);
    return 0;
  }

  if ((serialDevice = serialOpenDevice(device))) {
    unsigned int baud = 19200;
    charactersPerSecond = baud / 11;

    if (serialRestartDevice(serialDevice, baud)) {
      if (serialSetParity(serialDevice, SERIAL_PARITY_EVEN)) {
        if (writePacket(brl, 4, NULL, 0)) {
          while (serialAwaitInput(serialDevice, 500)) {
            unsigned char response[3];
            int size = readPacket(brl, response, sizeof(response));
            if (size <= 0) break;

            if (response[1] == 4) {
              brl->textColumns = response[2];
              brl->textRows = 1;

              makeOutputTable(dotsTable_ISO11548_1);
              makeInputTable();

              if (!clearBrailleCells(brl)) break;
              if (!clearVisualText(brl)) break;
              if (!writeBrailleCells(brl)) break;

              return 1;
            }
          }
        }
      }
    }

    serialCloseDevice(serialDevice);
    serialDevice = NULL;
  }
  
  return 0;
}
Esempio n. 4
0
static int
brl_construct (BrailleDisplay *brl, char **parameters, const char *device) {
  if (!isSerialDevice(&device)) {
    unsupportedDevice(device);
    return 0;
  }

  if ((serialDevice = serialOpenDevice(device))) {
    static const unsigned int baud = 9600;
    charactersPerSecond = baud / 10;
    if (serialRestartDevice(serialDevice, baud)) {
      if (identifyDisplay(brl)) {
        {
          static const DotsTable dots = {
            0X01, 0X02, 0X04, 0X10, 0X20, 0X40, 0X08, 0X80
          };
          makeOutputTable(dots);
        }
  
        if ((outputBuffer = malloc(brl->textColumns))) {
          if (setTable(brl, 0)) {
            memset(outputBuffer, 0, brl->textColumns);
            writeCells(brl);

            return 1;
          }

          free(outputBuffer);
          outputBuffer = NULL;
        } else {
          logSystemError("Output buffer allocation");
        }
      }
    }

    serialCloseDevice(serialDevice);
    serialDevice = NULL;
  }

  return 0;
}
Esempio n. 5
0
static int
brl_construct (BrailleDisplay *brl, char **parameters, const char *device) {
   {
      static TranslationTable outputTable = {
#include "brl-out.h"
      };

      setOutputTable(outputTable);
      makeInputTable();

      {
         const unsigned char byte = 0XFF;

         if (memchr(outputTable, byte, sizeof(outputTable))) {
            outputTable[translateInputCell(byte)] = SUB;
         }
      }
   }

   if (!isSerialDevice(&device)) {
      unsupportedDevice(device);
      return 0;
   }

   makeDownloadFifo();
   if ((serialDevice = serialOpenDevice(device))) {
      if (serialRestartDevice(serialDevice, 9600)) {
         brl->textRows = screenHeight;
         brl->textColumns = screenWidth;
         brl->buffer = &sourceImage[0][0];
         memset(sourceImage, 0, sizeof(sourceImage));
         deviceStatus = DEV_ONLINE;
         return 1;
      }
      serialCloseDevice(serialDevice);
      serialDevice = NULL;
   }
   return 0;
}
Esempio n. 6
0
static int
brl_construct (BrailleDisplay *brl, char **parameters, const char *device) {
  unsigned int ttyBaud = 9600;
  char *ttyType = "vt100";
  int windowLines = 1;
  int windowColumns = 40;

#ifdef HAVE_ICONV_H
  const char *characterSet = getLocaleCharset();
#endif /* HAVE_ICONV_H */

  if (!isSerialDevice(&device)) {
    unsupportedDevice(device);
    return 0;
  }

  {
    unsigned int baud = ttyBaud;
    if (serialValidateBaud(&baud, "TTY baud", parameters[PARM_BAUD], NULL))
      ttyBaud = baud;
  }

#ifdef USE_CURSES
  if (*parameters[PARM_TERM])
    ttyType = parameters[PARM_TERM];
#endif /* USE_CURSES */

  {
    static const int minimum = 1;
    static const int maximum = MAX_WINDOW_LINES;
    int lines = windowLines;
    if (validateInteger(&lines, parameters[PARM_LINES], &minimum, &maximum)) {
      windowLines = lines;
    } else {
      logMessage(LOG_WARNING, "%s: %s", "invalid line count", parameters[PARM_LINES]);
    }
  }

  {
    static const int minimum = 1;
    static const int maximum = MAX_WINDOW_COLUMNS;
    int columns = windowColumns;
    if (validateInteger(&columns, parameters[PARM_COLUMNS], &minimum, &maximum)) {
      windowColumns = columns;
    } else {
      logMessage(LOG_WARNING, "%s: %s", "invalid column count", parameters[PARM_COLUMNS]);
    }
  }

#ifdef HAVE_ICONV_H
  if (*parameters[PARM_CHARSET])
    characterSet = parameters[PARM_CHARSET];
#endif /* HAVE_ICONV_H */

  if (*parameters[PARM_LOCALE])
    classificationLocale = parameters[PARM_LOCALE];

#ifdef HAVE_ICONV_H
  if ((conversionDescriptor = iconv_open(characterSet, "WCHAR_T")) != (iconv_t)-1) {
#endif /* HAVE_ICONV_H */
    if ((ttyDevice = serialOpenDevice(device))) {
      if (serialRestartDevice(ttyDevice, ttyBaud)) {
#ifdef USE_CURSES
        if ((ttyStream = serialGetStream(ttyDevice))) {
          if ((ttyScreen = newterm(ttyType, ttyStream, ttyStream))) {
            cbreak();
            noecho();
            nonl();

            nodelay(stdscr, TRUE);
            intrflush(stdscr, FALSE);
            keypad(stdscr, TRUE);

            clear();
            refresh();
#endif /* USE_CURSES */

            brl->textColumns = windowColumns;
            brl->textRows = windowLines; 

            logMessage(LOG_INFO, "TTY: type=%s baud=%u size=%dx%d",
                       ttyType, ttyBaud, windowColumns, windowLines);
            return 1;
#ifdef USE_CURSES
          } else {
            logSystemError("newterm");
          }

          ttyStream = NULL;
        }
#endif /* USE_CURSES */
      }

      serialCloseDevice(ttyDevice);
      ttyDevice = NULL;
    }

#ifdef HAVE_ICONV_H
    iconv_close(conversionDescriptor);
  } else {
    logSystemError("iconv_open");
  }
  conversionDescriptor = NULL;
#endif /* HAVE_ICONV_H */

  return 0;
}
Esempio n. 7
0
GioEndpoint *
gioConnectResource (
  const char *identifier,
  const GioDescriptor *descriptor
) {
  GioEndpoint *endpoint;

  if ((endpoint = malloc(sizeof(*endpoint)))) {
    endpoint->bytesPerSecond = 0;

    endpoint->input.error = 0;
    endpoint->input.from = 0;
    endpoint->input.to = 0;

    endpoint->hidReportItems.address = NULL;
    endpoint->hidReportItems.size = 0;

    if (descriptor->serial.parameters) {
      if (isSerialDevice(&identifier)) {
        if ((endpoint->handle.serial.device = serialOpenDevice(identifier))) {
          if (serialSetParameters(endpoint->handle.serial.device, descriptor->serial.parameters)) {
            endpoint->methods = &serialMethods;
            endpoint->options = descriptor->serial.options;
            setBytesPerSecond(endpoint, descriptor->serial.parameters);
            goto connectSucceeded;
          }

          serialCloseDevice(endpoint->handle.serial.device);
        }

        goto connectFailed;
      }
    }

    if (descriptor->usb.channelDefinitions) {
      if (isUsbDevice(&identifier)) {
        if ((endpoint->handle.usb.channel = usbFindChannel(descriptor->usb.channelDefinitions, identifier))) {
          endpoint->methods = &usbMethods;
          endpoint->options = descriptor->usb.options;

          if (!endpoint->options.applicationData) {
            endpoint->options.applicationData = endpoint->handle.usb.channel->definition.data;
          }

          {
            UsbChannel *channel = endpoint->handle.usb.channel;
            const SerialParameters *parameters = channel->definition.serial;
            if (parameters) setBytesPerSecond(endpoint, parameters);
          }

          goto connectSucceeded;
        }

        goto connectFailed;
      }
    }

    if (descriptor->bluetooth.channelNumber) {
      if (isBluetoothDevice(&identifier)) {
        if ((endpoint->handle.bluetooth.connection = bthOpenConnection(identifier, descriptor->bluetooth.channelNumber, 0))) {
          endpoint->methods = &bluetoothMethods;
          endpoint->options = descriptor->bluetooth.options;
          goto connectSucceeded;
        }

        goto connectFailed;
      }
    }

    errno = ENOSYS;
    logMessage(LOG_WARNING, "unsupported input/output resource identifier: %s", identifier);

  connectFailed:
    free(endpoint);
  } else {
    logMallocError();
  }

  return NULL;

connectSucceeded:
  {
    int delay = endpoint->options.readyDelay;
    if (delay) approximateDelay(delay);
  }

  if (!gioDiscardInput(endpoint)) {
    int originalErrno = errno;
    gioDisconnectResource(endpoint);
    errno = originalErrno;
    return NULL;
  }

  return endpoint;
}
Esempio n. 8
0
static int brl_construct(BrailleDisplay *brl, char **parameters, const char *device)
{
  short ModelID = MODEL;
  unsigned char buffer[DIM_BRL_ID + 6];

  if (!isSerialDevice(&device)) {
    unsupportedDevice(device);
    return 0;
  }

  rawdata = NULL;	/* clear pointers */

  /* Open the Braille display device */
  if (!(serialDevice = serialOpenDevice(device))) goto failure;
  
#ifdef DEBUG
  brl_log = open("/tmp/brllog", O_CREAT | O_WRONLY);
  if(brl_log < 0){
    goto failure;
  }
#endif /* DEBUG */

  /* autodetecting ECO model */
  do{
      /* DTR back on */
      serialRestartDevice(serialDevice, BAUDRATE);	/* activate new settings */
      
      /* The 2 next lines can be commented out to try autodetect once anyway */
      if(ModelID != ECO_AUTO){
	break;
      }
      	
      if(serialReadData(serialDevice, &buffer, DIM_BRL_ID + 6, 600, 100) == DIM_BRL_ID + 6){
	  if(memcmp (buffer, BRL_ID, DIM_BRL_ID) == 0){
	  
	    /* Possible values; 0x20, 0x40, 0x80 */
	    int tmpModel=buffer[DIM_BRL_ID] / 0x20;

	    switch(tmpModel){
	     case 1: ModelID=0;
	       break;
	     case 2: ModelID=1;
	       break;
	     case 4: ModelID=2;
	       break;
	    default: ModelID=1;
	    }
	  }
      }
  }while(ModelID == ECO_AUTO);
  
  if(ModelID >= NB_MODEL || ModelID < 0){
    goto failure;		/* unknown model */
  }
    
  /* Need answer to BR */
  /*do{*/
      serialWriteData(serialDevice, SYS_READY, DIM_SYS_READY);
      serialReadData(serialDevice, &buffer, DIM_BRL_READY + 6, 100, 100);
      /*}while(strncmp (buffer, BRL_READY, DIM_BRL_READY));*/
      
      logMessage(LOG_DEBUG, "buffer is: %s",buffer);
  
  /* Set model params */
  model = &Models[ModelID];
  brl->textColumns = model->Cols;		/* initialise size of main display */
  brl->textRows = BRLROWS;		/* ever is 1 in this type of braille lines */
  
  MAKE_OUTPUT_TABLE(0X10, 0X20, 0X40, 0X01, 0X02, 0X04, 0X80, 0X08);

  /* Need to calculate the size; Cols + Status + 1 (space between) */
  BrailleSize = brl->textColumns + model->NbStCells + 1;

  /* Allocate space for buffers */
  rawdata = malloc(BrailleSize); /* Phisical size */
  if(!rawdata){
     goto failure;
  }    

  /* Empty buffers */
  memset(rawdata, 0, BrailleSize);
  memset(Status, 0, MAX_STCELLS);

return 1;

failure:;
  if(rawdata){
     free(rawdata);
  }
       
return 0;
}
Esempio n. 9
0
static int brl_construct (BrailleDisplay *brl, char **parameters, const char *device) {
	short n, success;		/* loop counters, flags, etc. */
	unsigned char *init_seq = (unsigned char *)"\002\0330";	/* string to send to Braille to initialise: [ESC][0] */
	unsigned char *init_ack = (unsigned char *)"\002\033V";	/* string to expect as acknowledgement: [ESC][V]... */
	unsigned char c;
	TimePeriod period;

	if (!isSerialDevice(&device)) {
		unsupportedDevice(device);
		return 0;
	}

	brlcols = -1;		/* length of braille display (auto-detected) */
	prevdata = rawdata = NULL;		/* clear pointers */

	/* No need to load translation tables, as these are now
	 * defined in tables.h
	 */

	/* Now open the Braille display device for random access */
	if (!(MB_serialDevice = serialOpenDevice(device))) goto failure;
	if (!serialRestartDevice(MB_serialDevice, BAUDRATE)) goto failure;
	if (!serialSetFlowControl(MB_serialDevice, SERIAL_FLOW_HARDWARE)) goto failure;

	/* MultiBraille initialisation procedure:
	 * [ESC][V][Braillelength][Software Version][CR]
	 * I guess, they mean firmware version with software version :*}
	 * firmware version == [Software Version] / 10.0
         */
	success = 0;
	if (init_seq[0])
		if (serialWriteData (MB_serialDevice, init_seq + 1, init_seq[0]) != init_seq[0])
			goto failure;
	startTimePeriod (&period, ACK_TIMEOUT);		/* initialise timeout testing */
	n = 0;
	do {
		approximateDelay (20);
		if (serialReadData (MB_serialDevice, &c, 1, 0, 0) == 0)
			continue;
		if (n < init_ack[0] && c != init_ack[1 + n])
			continue;
		if (n == init_ack[0]) {
			brlcols = c, success = 1;

			/* reading version-info */
			/* firmware version == [Software Version] / 10.0 */
			serialReadData (MB_serialDevice, &c, 1, 0, 0);
			logMessage (LOG_INFO, "MultiBraille: Version: %2.1f", c/10.0);

			/* read trailing [CR] */
			serialReadData (MB_serialDevice, &c, 1, 0, 0);
		}
		n++;
	}
	while (!afterTimePeriod (&period, NULL) && n <= init_ack[0]);

	if (success && (brlcols != 25)) {
          if ((prevdata = malloc(brl->textColumns * brl->textRows))) {
            if ((rawdata = malloc(20 + (brl->textColumns * brl->textRows * 2)))) {
              brl->textColumns = brlcols;
              brl->textRows = BRLROWS;

              brl->statusColumns = 5;
              brl->statusRows = 1;

              {
                static const DotsTable dots = {
                  0X01, 0X02, 0X04, 0X80, 0X40, 0X20, 0X08, 0X10
                };

                makeOutputTable(dots);
              }

              return 1;
            } else {
              logMallocError();
            }

            free(prevdata);
          } else {
            logMallocError();
          }
        }

      failure:
	if (MB_serialDevice) {
           serialCloseDevice(MB_serialDevice);
           MB_serialDevice = NULL;
        }
	return 0;
}
Esempio n. 10
0
static int
testSerialIdentifier (const char **identifier) {
  return isSerialDevice(identifier);
}