***************************************************************************/
+#include "jogshuttle.h"
+
+#include <KDebug>
+#include <kde_file.h>
+
+#include <QApplication>
+#include <QEvent>
+#include <QDir>
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <string.h>
+#include <linux/input.h>
#define DELAY 10
#define KEY14 269
#define KEY15 270
+// Constants for the returned events when reading them from the device
#define JOGSHUTTLE 2
#define JOG 7
#define SHUTTLE 8
+// Constants for the signals sent.
#define JOG_BACK1 10001
#define JOG_FWD1 10002
-#define JOG_FWD 10003
-#define JOG_FWD_SLOW 10004
-#define JOG_FWD_FAST 10005
-#define JOG_BACK 10006
-#define JOG_BACK_SLOW 10007
-#define JOG_BACK_FAST 10008
-#define JOG_STOP 10009
-
-
-#include <QApplication>
-#include <QEvent>
-
-#include <KDebug>
-#include <kde_file.h>
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <linux/input.h>
-
+#define KEY_EVENT_OFFSET 20000
+// middle value for shuttle, will be +/-MAX_SHUTTLE_RANGE
+#define JOG_STOP 10020
+#define MAX_SHUTTLE_RANGE 7
-#include "jogshuttle.h"
-
-
-void ShuttleThread::init(QObject *parent, QString device) {
+void ShuttleThread::init(QObject *parent, const QString &device)
+{
m_parent = parent;
m_device = device;
stop_me = false;
m_isWorking = false;
shuttlevalue = 0xffff;
+ shuttlecounter = 0;
jogvalue = 0xffff;
}
-bool ShuttleThread::isWorking() {
+bool ShuttleThread::isWorking()
+{
return m_isWorking;
}
-void ShuttleThread::run() {
- kDebug() << "------- STARTING SHUTTLE: " << m_device;
-
- const int fd = KDE_open((char *) m_device.toUtf8().data(), O_RDONLY);
- if (fd < 0) {
- fprintf(stderr, "Can't open Jog Shuttle FILE DESCRIPTOR\n");
- return;;
- }
- EV ev;
-
- if (ioctl(fd, EVIOCGRAB, 1) < 0) {
- fprintf(stderr, "Can't get exclusive access on Jog Shuttle FILE DESCRIPTOR\n");
- return;;
+void ShuttleThread::run()
+{
+ kDebug() << "------- STARTING SHUTTLE: " << m_device;
+ struct media_ctrl mc;
+ media_ctrl_open2(&mc, m_device.toUtf8().data());
+
+ /* open file descriptor */
+ //const int fd = KDE_open((char *) m_device.toUtf8().data(), O_RDONLY);
+ if (mc.fd < 0) {
+ perror("Can't open Jog Shuttle FILE DESCRIPTOR");
+ return;
+ }
+
+ EV ev[64];
+#if 0
+ if (ioctl(fd, EVIOCGRAB, 1) < 0) {
+ fprintf(stderr, "Can't get exclusive access on Jog Shuttle FILE DESCRIPTOR\n");
+ close(fd);
+ return;
+ }
+#endif
+
+ fd_set readset;
+ struct timeval timeout;
+
+ int num_warnings = 0, readResult = 0;
+ int result, iof = -1;
+#if 0
+ /* get fd settings */
+ if ((iof = fcntl(fd, F_GETFL, 0)) == -1) {
+ fprintf(stderr, "Can't get Jog Shuttle file status\n");
+ close(fd);
+ return;
}
-
- while (!stop_me) {
- read(fd, &ev, sizeof(ev));
- handle_event(ev);
+#endif
+#if 0
+ else if (fcntl(fd, F_SETFL, iof | O_NONBLOCK) == -1) {
+ fprintf(stderr, "Can't set Jog Shuttle FILE DESCRIPTOR to O_NONBLOCK and stop thread\n");
+ close(fd);
+ return;
}
- close(fd);
+#endif
+ struct media_ctrl_event mev;
+
+ /* enter thread loop */
+ while (!stop_me) {
+ /* reset the read set */
+ FD_ZERO(&readset);
+ FD_SET(mc.fd, &readset);
+
+ /* reinit the timeout structure */
+ timeout.tv_sec = 0;
+ timeout.tv_usec = 400000; /* 400 ms */
+
+ /* do select in blocked mode and wake up after timeout for eval stop_me */
+ result = select(mc.fd+1, &readset, NULL, NULL, &timeout);
+
+ /* see if there was an error or timeout else process event */
+ if (result < 0 && errno == EINTR) {
+ /* EINTR event catched. This is not a problem - continue processing */
+ kDebug() << strerror(errno) << "\n";
+ /* continue processing */
+ continue;
+ } else if (result < 0) {
+ /* stop thread */
+ stop_me = true;
+ kDebug() << strerror(errno) << "\n";
+ } else if (result == 0) {
+ /* do nothing. reserved for future purposes */
+ } else {
+ /* we have input */
+ if (FD_ISSET(mc.fd, &readset)) {
+ /* read input */
+ mev.type = MEDIA_CTRL_EVENT_NONE;
+ //readResult = read(fd, ev, sizeof(EV) * 64);
+ media_ctrl_read_event(&mc, &mev);
+ /* process event */
+ handle_event(mev);
+#if 0
+ if (readResult < 0) {
+ if (num_warnings % 10000 == 0) {
+ /* if device is not available anymore - dead or disconnected */
+ fprintf(stderr, "Failed to read event from Jog Shuttle FILE DESCRIPTOR (repeated %d times)\n", num_warnings + 1);
+ }
+ /* exit if device is not available or the error occurs to long */
+ if (errno == ENODEV) {
+ perror("Failed to read from Jog Shuttle FILE DESCRIPTOR. Stop thread");
+ /* stop thread */
+ stop_me = true;
+ } else if (num_warnings > 1000000) {
+ perror("Failed to read from Jog Shuttle FILE DESCRIPTOR. Limit reached. Stop thread");
+ /* stop thread */
+ stop_me = true;
+ }
+ num_warnings++;
+ } else if (readResult < (int)sizeof(EV)) {
+ fprintf(stderr, "readResult < (int)sizeof(EV)\n");
+ /* stop thread */
+ stop_me = true;
+ } else if (readResult % (int)sizeof(EV) != 0) {
+ fprintf(stderr, "readResult mod (int)sizeof(EV) != 0\n");
+ /* stop thread */
+ stop_me = true;
+ } else {
+ for (int i = 0; i < readResult / (int)sizeof(EV); i++) {
+ /* process event */
+ handle_event(ev[i]);
+ }
+ }
+#endif
+ }
+ }
+ }
+
+ kDebug() << "------- STOPPING SHUTTLE: ";
+ /* close the handle and return thread */
+ //close(fd);
+ media_ctrl_close(&mc);
+}
+void ShuttleThread::handle_event(struct media_ctrl_event ev)
+{
+ if (ev.type == MEDIA_CTRL_EVENT_KEY)
+ key(ev);
+ else if (ev.type == MEDIA_CTRL_EVENT_JOG)
+ jog(ev);
+ else if (ev.type == MEDIA_CTRL_EVENT_SHUTTLE)
+ shuttle(ev);
}
-void ShuttleThread::handle_event(EV ev) {
+void ShuttleThread::handle_event(EV ev)
+{
switch (ev.type) {
case KEY :
key(ev.code, ev.value);
break;
case JOGSHUTTLE :
- jogshuttle(ev.code, ev.value);
+ if (ev.code == JOG)
+ jog(ev.value);
+ if (ev.code == SHUTTLE)
+ shuttle(ev.value);
break;
}
}
-void ShuttleThread::key(unsigned short code, unsigned int value) {
+void ShuttleThread::key(struct media_ctrl_event ev)
+{
+ if (ev.value == KEY_PRESS) {
+ int code = ev.index + 1;
+ QApplication::postEvent(m_parent, new QEvent((QEvent::Type)(KEY_EVENT_OFFSET + code)));
+ }
+}
+
+void ShuttleThread::key(unsigned short code, unsigned int value)
+{
if (value == 0) {
// Button release (ignored)
return;
}
+ // Check key index
code -= KEY1 - 1;
-
- // Bound check!
if (code > 16)
return;
- kDebug() << "Button PRESSED: " << code;
- QApplication::postEvent(m_parent, new QEvent((QEvent::Type)(20000 + code)));
+ //kDebug() << "Button PRESSED: " << code;
+ QApplication::postEvent(m_parent, new QEvent((QEvent::Type)(KEY_EVENT_OFFSET + code)));
}
-void ShuttleThread::shuttle(int value) {
+void ShuttleThread::shuttle(struct media_ctrl_event ev)
+{
+ QApplication::postEvent(m_parent, new QEvent((QEvent::Type) (JOG_STOP + (ev.value/2))));
+}
+
+void ShuttleThread::shuttle(int value)
+{
//gettimeofday( &last_shuttle, 0 );
//need_synthetic_shuttle = value != 0;
- if (value == shuttlevalue)
+ if (value == shuttlevalue) {
+ shuttlecounter = 1;
return;
- shuttlevalue = value;
- switch (value) {
- case - 7 :
- case - 6 :
- case - 5 :
- case - 4 :
- case - 3 :
- QApplication::postEvent(m_parent, new QEvent((QEvent::Type) JOG_BACK_FAST));
- break; // Reverse fast
- case - 2 :
- QApplication::postEvent(m_parent, new QEvent((QEvent::Type) JOG_BACK));
- break; // Reverse
- case - 1 :
- QApplication::postEvent(m_parent, new QEvent((QEvent::Type) JOG_BACK_SLOW));
- break; // Reverse slow
- case 0 :
- QApplication::postEvent(m_parent, new QEvent((QEvent::Type) JOG_STOP));
- break; // Stop!
- case 1 :
- QApplication::postEvent(m_parent, new QEvent((QEvent::Type) JOG_FWD_SLOW));
- break; // Forward slow
- case 2 :
- QApplication::postEvent(m_parent, new QEvent((QEvent::Type) JOG_FWD));
- break; // Normal play
- case 3 :
- case 4 :
- case 5 :
- case 6 :
- case 7 :
- QApplication::postEvent(m_parent, new QEvent((QEvent::Type) JOG_FWD_FAST));
- break; // Fast forward
}
+ if (value > MAX_SHUTTLE_RANGE || value < -MAX_SHUTTLE_RANGE) {
+ fprintf(stderr, "Jog Shuttle returned value of %d (should be between -%d ad +%d)", value, MAX_SHUTTLE_RANGE, MAX_SHUTTLE_RANGE);
+ return;
+ }
+ shuttlevalue = value;
+ shuttlecounter = 1;
+ QApplication::postEvent(m_parent, new QEvent((QEvent::Type) (JOG_STOP + value)));
}
-void ShuttleThread::jog(unsigned int value) {
- // We should generate a synthetic event for the shuttle going
- // to the home position if we have not seen one recently
- //check_synthetic();
+void ShuttleThread::jog(struct media_ctrl_event ev)
+{
+ if (ev.value < 0)
+ QApplication::postEvent(m_parent, new QEvent((QEvent::Type) JOG_BACK1));
+ else if (ev.value > 0)
+ QApplication::postEvent(m_parent, new QEvent((QEvent::Type) JOG_FWD1));
+}
+void ShuttleThread::jog(unsigned int value)
+{
+ // generate a synthetic event for the shuttle going
+ // to the home position if we have not seen one recently.
+ //if (shuttlevalue != 0) {
+ // QApplication::postEvent(m_parent, new QEvent((QEvent::Type) JOG_STOP));
+ // shuttlevalue = 0;
+ //}
+
+ // This code takes care of wrapping around the limits of the jog dial number (it is represented as a single byte, hence
+ // wraps at the 0/255 boundary). I used 25 as the difference to make sure that even in heavy load, with the jog dial
+ // turning fast and we miss some events that we do not mistakenly reverse the direction.
+ // Note also that at least the Contour ShuttlePRO v2 does not send an event for the value 0, so at the wrap it will
+ // need 2 events to go forward. But that is nothing we can do about...
if (jogvalue != 0xffff) {
- if (value < jogvalue)
+ //fprintf(stderr, "value=%d jogvalue=%d\n", value, jogvalue);
+ bool wrap = abs(value - jogvalue) > 25;
+ bool rewind = value < jogvalue;
+ bool forward = value > jogvalue;
+ if ((rewind && !wrap) || (forward && wrap))
QApplication::postEvent(m_parent, new QEvent((QEvent::Type) JOG_BACK1));
- else if (value > jogvalue)
+ else if ((forward && !wrap) || (rewind && wrap))
QApplication::postEvent(m_parent, new QEvent((QEvent::Type) JOG_FWD1));
+ else if (!forward && !rewind && shuttlecounter > 2) {
+ // An event without changing the jog value is sent after each shuttle change.
+ // As the shuttle rest position does not get a shuttle event, only a non-position-changing jog event.
+ // Hence we stop on this when we see 2 non-position-changing jog events in a row.
+ shuttlecounter = 0;
+ QApplication::postEvent(m_parent, new QEvent((QEvent::Type) JOG_STOP));
+ }
}
jogvalue = value;
+ if (shuttlecounter > 0) shuttlecounter++;
}
-void ShuttleThread::jogshuttle(unsigned short code, unsigned int value) {
- switch (code) {
- case JOG :
- jog(value);
- break;
- case SHUTTLE :
- shuttle(value);
- break;
- }
-}
-
-
-JogShuttle::JogShuttle(QString device, QObject *parent): QObject(parent) {
+JogShuttle::JogShuttle(const QString &device, QObject *parent) :
+ QObject(parent)
+{
initDevice(device);
}
-JogShuttle::~JogShuttle() {
- if (m_shuttleProcess.isRunning()) m_shuttleProcess.exit();
+JogShuttle::~JogShuttle()
+{
+ stopDevice();
}
-void JogShuttle::initDevice(QString device) {
- if (m_shuttleProcess.isRunning()) return;
+void JogShuttle::initDevice(const QString &device)
+{
+ if (m_shuttleProcess.isRunning()) {
+ if (device == m_shuttleProcess.m_device) return;
+ stopDevice();
+ }
m_shuttleProcess.init(this, device);
m_shuttleProcess.start(QThread::LowestPriority);
}
-void JogShuttle::stopDevice() {
- if (m_shuttleProcess.isRunning()) m_shuttleProcess.stop_me = true;
+void JogShuttle::stopDevice()
+{
+ if (m_shuttleProcess.isRunning()) {
+ /* tell thread to stop */
+ m_shuttleProcess.stop_me = true;
+ m_shuttleProcess.exit();
+ /* give the thread some time (ms) to shutdown */
+ m_shuttleProcess.wait(600);
+
+ /* if still running - do it in the hardcore way */
+ if (m_shuttleProcess.isRunning()) {
+ m_shuttleProcess.terminate();
+ kDebug() << "/// terminate jogshuttle process\n";
+ }
+ }
}
-void JogShuttle::customEvent(QEvent* e) {
- switch (e->type()) {
+void JogShuttle::customEvent(QEvent* e)
+{
+ int code = e->type();
+
+ // Handle simple job events
+ switch (code) {
case JOG_BACK1:
- emit rewind1();
- break;
+ emit jogBack();
+ return;
case JOG_FWD1:
- emit forward1();
- break;
- case JOG_BACK:
- emit rewind(-1);
- break;
- case JOG_FWD:
- emit forward(1);
- break;
- case JOG_BACK_SLOW:
- emit rewind(-0.5);
- break;
- case JOG_FWD_SLOW:
- emit forward(0.5);
- break;
- case JOG_BACK_FAST:
- emit rewind(-2);
- break;
- case JOG_FWD_FAST:
- emit forward(2);
- break;
- case JOG_STOP:
- emit stop();
- break;
- default:
- emit button(e->type() - 20000);
+ emit jogForward();
+ return;
+ }
+
+ int shuttle_pos = code - JOG_STOP;
+ if (shuttle_pos >= -MAX_SHUTTLE_RANGE && shuttle_pos <= MAX_SHUTTLE_RANGE) {
+ emit shuttlePos(shuttle_pos);
+ return;
}
+
+ // we've got a key event.
+ //fprintf(stderr, "Firing button event for #%d\n", e->type() - KEY_EVENT_OFFSET); // DBG
+ emit button(e->type() - KEY_EVENT_OFFSET);
+}
+
+QString JogShuttle::enumerateDevice(const QString& device)
+{
+ return QDir(device).canonicalPath();
}
+DeviceMap JogShuttle::enumerateDevices(const QString& devPath)
+{
+ DeviceMap devs;
+ QDir devDir(devPath);
+
+ if (!devDir.exists()) {
+ return devs;
+ }
+
+ QStringList fileList = devDir.entryList(QDir::System | QDir::Files);
+ foreach (const QString &fileName, fileList) {
+ QString devFullPath = devDir.absoluteFilePath(fileName);
+ QString fileLink = JogShuttle::enumerateDevice(devFullPath);
+ kDebug() << QString(" [%1] ").arg(fileName);
+ kDebug() << QString(" [%1] ").arg(fileLink);
+
+ struct media_ctrl mc;
+ media_ctrl_open2(&mc, (char*)fileLink.toUtf8().data());
+ if (mc.fd > 0 && mc.device) {
+ devs.insert(QString(mc.device->name), devFullPath);
+ }
+ media_ctrl_close(&mc);
+ }
+
+ return devs;
+}
// #include "jogshuttle.moc"
+
+#include "jogshuttle.moc"
projects / kdenlive / blobdiff