static int brl_readCommand(BrailleDisplay *brl, KeyTableCommandContext context) {
vbButtons buttons;
BrButtons(&buttons);
if (!buttons.keypressed) {
return EOF;
} else {
vbButtons b;
do {
BrButtons(&b);
buttons.bigbuttons |= b.bigbuttons;
{
const TimeValue duration = {
.seconds = 0,
.nanoseconds = 1 * NSECS_PER_USEC
};
accurateDelay(&duration);
}
} while (b.keypressed);
/* Test which buttons has been pressed */
if (buttons.bigbuttons==KEY_UP) return BRL_CMD_LNUP;
else if (buttons.bigbuttons==KEY_LEFT) return BRL_CMD_FWINLT;
else if (buttons.bigbuttons==KEY_RIGHT) return BRL_CMD_FWINRT;
else if (buttons.bigbuttons==KEY_DOWN) return BRL_CMD_LNDN;
else if (buttons.bigbuttons==KEY_ATTRIBUTES) return BRL_CMD_ATTRVIS;
else if (buttons.bigbuttons==KEY_CURSOR) return BRL_CMD_CSRVIS;
else if (buttons.bigbuttons==KEY_HOME) {
/* If a routing key has been pressed, then mark the beginning of a block;
go to cursor position otherwise */
return (buttons.routingkey>0) ? BRL_CMD_BLK(CLIP_NEW)+buttons.routingkey-1 : BRL_CMD_HOME;
}
else if (buttons.bigbuttons==KEY_MENU) {
/* If a routing key has been pressed, then mark the end of a block;
go to preferences menu otherwise */
return (buttons.routingkey>0) ? BRL_CMD_BLK(COPY_RECT)+buttons.routingkey-1 : BRL_CMD_PREFMENU;
}
else if (buttons.bigbuttons==(KEY_ATTRIBUTES | KEY_MENU)) return BRL_CMD_PASTE;
else if (buttons.bigbuttons==(KEY_CURSOR | KEY_LEFT)) return BRL_CMD_CHRLT;
else if (buttons.bigbuttons==(KEY_HOME | KEY_RIGHT)) return BRL_CMD_CHRRT;
else if (buttons.bigbuttons==(KEY_UP | KEY_LEFT)) return BRL_CMD_TOP_LEFT;
else if (buttons.bigbuttons==(KEY_RIGHT | KEY_DOWN)) return BRL_CMD_BOT_LEFT;
else if (buttons.bigbuttons==(KEY_ATTRIBUTES | KEY_DOWN)) return BRL_CMD_HELP;
else if (buttons.bigbuttons==(KEY_MENU | KEY_CURSOR)) return BRL_CMD_INFO;
else if (buttons.bigbuttons==0) {
/* A cursor routing key has been pressed */
if (buttons.routingkey>0) {
const TimeValue duration = {
.seconds = 0,
.nanoseconds = 5 * NSECS_PER_USEC
};
accurateDelay(&duration);
return BRL_CMD_BLK(ROUTE)+buttons.routingkey-1;
}
else return EOF;
} else
return EOF;
int
fmTestCard (int errorLevel) {
const unsigned char mask = AL_STAT_EXP | AL_STAT_EXP1 | AL_STAT_EXP2;
AL_resetTimers();
if (!(AL_readStatus() & mask)) {
unsigned char status;
AL_writeRegister(ALR_T1DATA, 0xFF);
AL_writeRegister(ALR_TCTL, AL_TCTL_T1START|AL_TCTL_T2MASK);
{
const TimeValue duration = {
.seconds = 0,
.nanoseconds = 80 * NSECS_PER_USEC
};
accurateDelay(&duration);
}
status = AL_readStatus();
AL_resetTimers();
if ((status & mask) == (AL_STAT_EXP | AL_STAT_EXP1)) return 1;
}
int
playBeep (unsigned short frequency, unsigned int duration) {
if (asynchronousBeep(frequency, duration*4)) {
accurateDelay(duration);
stopBeep();
return 1;
}
if (startBeep(frequency)) {
accurateDelay(duration);
stopBeep();
return 1;
}
return synchronousBeep(frequency, duration);
}
static int
beepPlay (NoteDevice *device, unsigned char note, unsigned int duration) {
logMessage(LOG_DEBUG, "tone: msec=%d note=%d", duration, note);
if (!note) {
accurateDelay(duration);
return 1;
}
return playBeep(getIntegerNoteFrequency(note), duration);
}
static int
fmPlay (NoteDevice *device, unsigned char note, unsigned int duration) {
logMessage(LOG_DEBUG, "tone: msec=%d note=%d",
duration, note);
if (note) {
fmPlayTone(device->channelNumber, getIntegerNoteFrequency(note), duration, prefs.fmVolume);
} else {
accurateDelay(duration);
}
return 1;
}
static int
beeperPlay (NoteDevice *device, unsigned char note, unsigned int duration) {
logMessage(LOG_DEBUG, "tone: msec=%d note=%d", duration, note);
if (!note) {
accurateDelay(duration);
return 1;
}
if (asynchronousBeep(getIntegerNoteFrequency(note), duration*4)) {
accurateDelay(duration);
stopBeep();
return 1;
}
if (startBeep(getIntegerNoteFrequency(note))) {
accurateDelay(duration);
stopBeep();
return 1;
}
return synchronousBeep(getIntegerNoteFrequency(note), duration);
}
static int brl_writeWindow(BrailleDisplay *brl, const wchar_t *text) {
const size_t cells = 40;
unsigned char outbuff[cells];
/* Only display something if the data actually differs, this
* could most likely cause some problems in redraw situations etc
* but since the darn thing wants to redraw quite frequently otherwise
* this still makes a better lookin result */
if (cellsHaveChanged(lastbuff, brl->buffer, cells, NULL, NULL, NULL)) {
translateOutputCells(outbuff, brl->buffer, cells);
vbdisplay(outbuff);
vbdisplay(outbuff);
accurateDelay(VBREFRESHDELAY);
}
return 1;
}
