int
serialSetParameters (SerialDevice *serial, const SerialParameters *parameters) {
if (!serialSetBaud(serial, parameters->baud)) return 0;
if (!serialSetDataBits(serial, parameters->dataBits)) return 0;
if (!serialSetStopBits(serial, parameters->stopBits)) return 0;
if (!serialSetParity(serial, parameters->parity)) return 0;
if (!serialSetFlowControl(serial, parameters->flowControl)) return 0;
return 1;
}
static int
serialConfigureParity (SerialDevice *serial, const char *string) {
if (string && *string) {
SerialParity parity;
if (!serialParseParity(&parity, string)) return 0;
if (!serialSetParity(serial, parity)) return 0;
}
return 1;
}
static int
openSerialPort (char **parameters, const char *device) {
if ((serialDevice = serialOpenDevice(device))) {
serialSetParity(serialDevice, SERIAL_PARITY_ODD);
if (serialRestartDevice(serialDevice, baud)) {
return 1;
}
serialCloseDevice(serialDevice);
serialDevice = NULL;
}
return 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;
}
/* the braille display can be resized without reloading the driver */
static int brl_construct(BrailleDisplay *brl, char **parameters, const char *device)
{
#ifdef SendIdReq
unsigned char ch = '?';
int i;
#endif /* SendIdReq */
int ds = BRAILLEDISPLAYSIZE;
int promVersion = 4;
unsigned int ttyBaud = 57600;
if (*parameters[PARM_DISPSIZE]) {
int dsmin=20, dsmax=40;
if (!validateInteger(&ds, parameters[PARM_DISPSIZE], &dsmin, &dsmax))
logMessage(LOG_WARNING, "%s: %s", "invalid braille display size", parameters[PARM_DISPSIZE]);
}
if (*parameters[PARM_PROMVER]) {
int pvmin=3, pvmax=6;
if (!validateInteger(&promVersion, parameters[PARM_PROMVER], &pvmin, &pvmax))
logMessage(LOG_WARNING, "%s: %s", "invalid PROM version", parameters[PARM_PROMVER]);
}
if (*parameters[PARM_BAUD]) {
unsigned int baud;
if (serialValidateBaud(&baud, "TTY baud", parameters[PARM_BAUD], NULL)) {
ttyBaud = baud;
}
}
if (!isSerialDeviceIdentifier(&device)) {
unsupportedDeviceIdentifier(device);
return 0;
}
if (!(serialDevice = serialOpenDevice(device))) return 0;
serialSetParity(serialDevice, SERIAL_PARITY_ODD);
if (promVersion<4) serialSetFlowControl(serialDevice, SERIAL_FLOW_INPUT_CTS);
serialRestartDevice(serialDevice,ttyBaud);
#ifdef SendIdReq
{
brl_writePacket(brl,(unsigned char *) &ch,1);
i=5;
while (i>0) {
if (brl_readPacket(brl,(unsigned char *) &terminfo,sizeof(terminfo))!=0) {
if (terminfo.code=='?') {
terminfo.f2[10] = '\0';
break;
}
}
i--;
}
if (i==0) {
logMessage(LOG_WARNING,"Unable to identify terminal properly");
if (!brl->textColumns) brl->textColumns = BRAILLEDISPLAYSIZE;
} else {
logMessage(LOG_INFO,"Braille terminal description:");
logMessage(LOG_INFO," version=%c%c%c",terminfo.version[0],terminfo.version[1],terminfo.version[2]);
logMessage(LOG_INFO," f1=%c",terminfo.f1);
logMessage(LOG_INFO," size=%c%c",terminfo.size[0],terminfo.size[1]);
logMessage(LOG_INFO," dongle=%c",terminfo.dongle);
logMessage(LOG_INFO," clock=%c",terminfo.clock);
logMessage(LOG_INFO," routing=%c",terminfo.routing);
logMessage(LOG_INFO," flash=%c",terminfo.flash);
logMessage(LOG_INFO," prog=%c",terminfo.prog);
logMessage(LOG_INFO," lcd=%c",terminfo.lcd);
logMessage(LOG_INFO," f2=%s",terminfo.f2);
if (brl->textColumns<=0)
brl->textColumns = (terminfo.size[0]-'0')*10 + (terminfo.size[1]-'0');
}
}
#else /* SendIdReq */
brl->textColumns = ds;
#endif /* SendIdReq */
brl->textRows=1;
{
/* The following table defines how internal brltty format is converted to */
/* VisioBraille format. */
/* The table is declared static so that it is in data segment and not */
/* in the stack */
static const TranslationTable outputTable = {
#include "brl-out.h"
};
setOutputTable(outputTable);
}
return 1;
}