void QEvdevKeyboardHandler::readKeycode()
{
struct ::input_event buffer[32];
int n = 0;
forever {
int result = qt_safe_read(m_fd, reinterpret_cast<char *>(buffer) + n, sizeof(buffer) - n);
if (result == 0) {
qWarning("evdevkeyboard: Got EOF from the input device");
return;
} else if (result < 0) {
if (errno != EINTR && errno != EAGAIN) {
qErrnoWarning(errno, "evdevkeyboard: Could not read from input device");
return;
}
} else {
n += result;
if (n % sizeof(buffer[0]) == 0)
break;
}
}
n /= sizeof(buffer[0]);
for (int i = 0; i < n; ++i) {
if (buffer[i].type != EV_KEY)
continue;
quint16 code = buffer[i].code;
qint32 value = buffer[i].value;
QEvdevKeyboardHandler::KeycodeAction ka;
ka = processKeycode(code, value != 0, value == 2);
switch (ka) {
case QEvdevKeyboardHandler::CapsLockOn:
case QEvdevKeyboardHandler::CapsLockOff:
switchLed(LED_CAPSL, ka == QEvdevKeyboardHandler::CapsLockOn);
break;
case QEvdevKeyboardHandler::NumLockOn:
case QEvdevKeyboardHandler::NumLockOff:
switchLed(LED_NUML, ka == QEvdevKeyboardHandler::NumLockOn);
break;
case QEvdevKeyboardHandler::ScrollLockOn:
case QEvdevKeyboardHandler::ScrollLockOff:
switchLed(LED_SCROLLL, ka == QEvdevKeyboardHandler::ScrollLockOn);
break;
default:
// ignore console switching and reboot
break;
}
}
}
void QEvdevKeyboardHandler::unloadKeymap()
{
qCDebug(qLcEvdevKey) << "Unload current keymap and restore built-in";
if (m_keymap && m_keymap != s_keymap_default)
delete [] m_keymap;
if (m_keycompose && m_keycompose != s_keycompose_default)
delete [] m_keycompose;
m_keymap = s_keymap_default;
m_keymap_size = sizeof(s_keymap_default) / sizeof(s_keymap_default[0]);
m_keycompose = s_keycompose_default;
m_keycompose_size = sizeof(s_keycompose_default) / sizeof(s_keycompose_default[0]);
// reset state, so we could switch keymaps at runtime
m_modifiers = 0;
memset(m_locks, 0, sizeof(m_locks));
m_composing = 0;
m_dead_unicode = 0xffff;
//Set locks according to keyboard leds
quint16 ledbits[1];
memset(ledbits, 0, sizeof(ledbits));
if (::ioctl(m_fd, EVIOCGLED(sizeof(ledbits)), ledbits) < 0) {
qWarning("evdevkeyboard: Failed to query led states");
switchLed(LED_NUML,false);
switchLed(LED_CAPSL, false);
switchLed(LED_SCROLLL,false);
} else {
//Capslock
if ((ledbits[0]&0x02) > 0)
m_locks[0] = 1;
//Numlock
if ((ledbits[0]&0x01) > 0)
m_locks[1] = 1;
//Scrollock
if ((ledbits[0]&0x04) > 0)
m_locks[2] = 1;
qCDebug(qLcEvdevKey, "numlock=%d , capslock=%d, scrolllock=%d", m_locks[1], m_locks[0], m_locks[2]);
}
}
void runPWMInternal(LedId led)
{
if (currentCount[led] >= LED_ON_FREQ) {
currentCount[led] = LED_OFF_FREQ;
} else {
currentCount[led]++;
}
if (fade && currentCount[led] == LED_OFF_FREQ) {
fadeCounter[led]++;
fadeCounter[led] %= FADE_COUNTER_FREQ;
if (ledStatus[led] && currentTrigger[led] < LED_ON_FREQ) {
if (fadeCounter[led] == 0) {
currentTrigger[led]++;
}
} else if (!ledStatus[led] && currentTrigger[led] > LED_OFF_FREQ) {
if (fadeCounter[led] == 0) {
currentTrigger[led]--;
}
}
}
switchLed(led, currentCount[led] < currentTrigger[led]);
}
void QEvdevKeyboardHandler::readKeycode()
{
struct ::input_event buffer[32];
int n = 0;
forever {
int result = qt_safe_read(m_fd, reinterpret_cast<char *>(buffer) + n, sizeof(buffer) - n);
if (result == 0) {
qWarning("evdevkeyboard: Got EOF from the input device");
return;
} else if (result < 0) {
if (errno != EINTR && errno != EAGAIN) {
qErrnoWarning(errno, "evdevkeyboard: Could not read from input device");
// If the device got disconnected, stop reading, otherwise we get flooded
// by the above error over and over again.
if (errno == ENODEV) {
delete m_notify;
m_notify = Q_NULLPTR;
qt_safe_close(m_fd);
m_fd = -1;
}
return;
}
} else {
n += result;
if (n % sizeof(buffer[0]) == 0)
break;
}
}
n /= sizeof(buffer[0]);
for (int i = 0; i < n; ++i) {
if (buffer[i].type != EV_KEY)
continue;
quint16 code = buffer[i].code;
qint32 value = buffer[i].value;
QEvdevKeyboardHandler::KeycodeAction ka;
ka = processKeycode(code, value != 0, value == 2);
switch (ka) {
case QEvdevKeyboardHandler::CapsLockOn:
case QEvdevKeyboardHandler::CapsLockOff:
switchLed(LED_CAPSL, ka == QEvdevKeyboardHandler::CapsLockOn);
break;
case QEvdevKeyboardHandler::NumLockOn:
case QEvdevKeyboardHandler::NumLockOff:
switchLed(LED_NUML, ka == QEvdevKeyboardHandler::NumLockOn);
break;
case QEvdevKeyboardHandler::ScrollLockOn:
case QEvdevKeyboardHandler::ScrollLockOff:
switchLed(LED_SCROLLL, ka == QEvdevKeyboardHandler::ScrollLockOn);
break;
default:
// ignore console switching and reboot
break;
}
}
}
