massive improvements for the QNX keyboard driver

update the code to work on recent QNXs (6.4 and newer);
support all keycodes defined in sys/keycodes.h;
support unicodes as well as scancodes

Merge-request: 1259
Reviewed-by: Harald Fernengel <harald.fernengel@nokia.com>

1 files changed, 170 insertions, 87 deletions

diff --git a/src/gui/embedded/qkbdqnx_qws.cpp b/src/gui/embedded/qkbdqnx_qws.cpp
index 5a8118d..ad76446 100644
--- a/src/gui/embedded/qkbdqnx_qws.cpp
+++ b/src/gui/embedded/qkbdqnx_qws.cpp
@@ -40,16 +40,16 @@
 ****************************************************************************/
 
 #include "qkbdqnx_qws.h"
-#include "QtCore/qsocketnotifier.h"
+
+#include "qplatformdefs.h"
+#include "qsocketnotifier.h"
+#include "private/qcore_unix_p.h"
 #include "QtCore/qdebug.h"
 
 #include <sys/dcmd_input.h>
-#include <photon/keycodes.h>
-
-#include "qplatformdefs.h"
+#include <sys/keycodes.h>
 #include <errno.h>
 
-
 QT_BEGIN_NAMESPACE
 
 /*!
@@ -72,7 +72,7 @@ QT_BEGIN_NAMESPACE
 
     Example invocation from command line: \c{/usr/photon/bin/devi-hid -Pr kbd mouse}
     Note that after running \c{devi-hid}, you will not be able to use the local
-    shell anymore. It is suggested to run the command in a shell scrip, that launches
+    shell anymore. It is suggested to run the command in a shell script, that launches
     a Qt application after invocation of \c{devi-hid}.
 
     To make \l{Qt for Embedded Linux} explicitly choose the qnx keyboard
@@ -100,15 +100,13 @@ QWSQnxKeyboardHandler::QWSQnxKeyboardHandler(const QString &device)
                          QT_OPEN_RDONLY);
     if (keyboardFD == -1) {
         qErrnoWarning(errno, "QWSQnxKeyboardHandler: Unable to open device");
-        return;
-    }
-
-    // create a socket notifier so we'll wake up whenever keyboard input is detected.
-    QSocketNotifier *notifier = new QSocketNotifier(keyboardFD, QSocketNotifier::Read, this);
-    connect(notifier, SIGNAL(activated(int)), SLOT(socketActivated()));
-
-    qDebug() << "QWSQnxKeyboardHandler: connected.";
+    } else {
+        // create a socket notifier so we'll wake up whenever keyboard input is detected.
+        QSocketNotifier *notifier = new QSocketNotifier(keyboardFD, QSocketNotifier::Read, this);
+        connect(notifier, SIGNAL(activated(int)), SLOT(socketActivated()));
 
+        qDebug("QWSQnxKeyboardHandler: connected.");
+    }
 }
 
 /*!
@@ -116,7 +114,16 @@ QWSQnxKeyboardHandler::QWSQnxKeyboardHandler(const QString &device)
  */
 QWSQnxKeyboardHandler::~QWSQnxKeyboardHandler()
 {
-    QT_CLOSE(keyboardFD);
+    if (keyboardFD != -1)
+        QT_CLOSE(keyboardFD);
+}
+
+// similar to PhKeyToMb
+static inline bool key_sym_displayable(unsigned long sym)
+{
+    if (sym >= 0xF000)
+        return sym >= 0xF100 && (sizeof(wchar_t) > 2 || sym < 0x10000);
+    return (sym & ~0x9F) != 0; // exclude 0...0x1F and 0x80...0x9F
 }
 
 /*! \internal
@@ -136,6 +143,11 @@ void QWSQnxKeyboardHandler::socketActivated()
     // the bytes read must be the size of a keyboard packet
     Q_ASSERT(bytesRead == sizeof(_keyboard_packet));
 
+    if (packet.data.flags & KEY_SYM_VALID_EX)
+        packet.data.flags |= KEY_SYM_VALID;
+    else if (!(packet.data.flags & (KEY_SYM_VALID | KEY_CAP_VALID)))
+        return;
+
 #if 0
     qDebug() << "keyboard got scancode"
              << hex << packet.data.modifiers
@@ -145,86 +157,157 @@ void QWSQnxKeyboardHandler::socketActivated()
              << packet.data.key_scan;
 #endif
 
-    // QNX is nice enough to translate the raw keyboard data into a QNX data structure
+    // QNX is nice enough to translate the raw keyboard data into generic format for us.
     // Now we just have to translate it into a format Qt understands.
 
-    // figure out whether it's a press
-    bool isPress = packet.data.key_cap & KEY_DOWN;
-    // figure out whether the key is still pressed and the key event is repeated
-    bool isRepeat = packet.data.key_cap & KEY_REPEAT;
-
-    Qt::Key key = Qt::Key_unknown;
-    int unicode = 0xffff;
-
-    // TODO - this switch is not complete!
-    switch (packet.data.key_scan) {
-    case KEYCODE_SPACE: key = Qt::Key_Space; unicode = 0x20; break;
-    case KEYCODE_F1: key = Qt::Key_F1; break;
-    case KEYCODE_F2: key = Qt::Key_F2; break;
-    case KEYCODE_F3: key = Qt::Key_F3; break;
-    case KEYCODE_F4: key = Qt::Key_F4; break;
-    case KEYCODE_F5: key = Qt::Key_F5; break;
-    case KEYCODE_F6: key = Qt::Key_F6; break;
-    case KEYCODE_F7: key = Qt::Key_F7; break;
-    case KEYCODE_F8: key = Qt::Key_F8; break;
-    case KEYCODE_F9: key = Qt::Key_F9; break;
-    case KEYCODE_F10: key = Qt::Key_F10; break;
-    case KEYCODE_F11: key = Qt::Key_F11; break;
-    case KEYCODE_F12: key = Qt::Key_F12; break;
-    case KEYCODE_BACKSPACE: key = Qt::Key_Backspace; break;
-    case KEYCODE_TAB: key = Qt::Key_Tab; break;
-    case KEYCODE_RETURN: key = Qt::Key_Return; break;
-    case KEYCODE_KP_ENTER: key = Qt::Key_Enter; break;
-    case KEYCODE_UP:
-    case KEYCODE_KP_UP:
-        key = Qt::Key_Up; break;
-    case KEYCODE_DOWN:
-    case KEYCODE_KP_DOWN:
-        key = Qt::Key_Down; break;
-    case KEYCODE_LEFT:
-    case KEYCODE_KP_LEFT:
-        key = Qt::Key_Left; break;
-    case KEYCODE_RIGHT:
-    case KEYCODE_KP_RIGHT:
-        key = Qt::Key_Right; break;
-    case KEYCODE_HOME:
-    case KEYCODE_KP_HOME:
-        key = Qt::Key_Home; break;
-    case KEYCODE_END:
-    case KEYCODE_KP_END:
-        key = Qt::Key_End; break;
-    case KEYCODE_PG_UP:
-    case KEYCODE_KP_PG_UP:
-        key = Qt::Key_PageUp; break;
-    case KEYCODE_PG_DOWN:
-    case KEYCODE_KP_PG_DOWN:
-        key = Qt::Key_PageDown; break;
-    case KEYCODE_INSERT:
-    case KEYCODE_KP_INSERT:
-        key = Qt::Key_Insert; break;
-    case KEYCODE_DELETE:
-    case KEYCODE_KP_DELETE:
-        key = Qt::Key_Delete; break;
-    case KEYCODE_ESCAPE:
-        key = Qt::Key_Escape; break;
-    default: // none of the above, try the key_scan directly
-        unicode = packet.data.key_scan;
-        break;
-    }
-
     // figure out the modifiers that are currently pressed
     Qt::KeyboardModifiers modifiers = Qt::NoModifier;
-    if (packet.data.flags & KEYMOD_SHIFT)
+    if (packet.data.modifiers & KEYMOD_SHIFT)
         modifiers |= Qt::ShiftModifier;
-    if (packet.data.flags & KEYMOD_CTRL)
+    if (packet.data.modifiers & KEYMOD_CTRL)
         modifiers |= Qt::ControlModifier;
-    if (packet.data.flags & KEYMOD_ALT)
+    if (packet.data.modifiers & KEYMOD_ALT)
         modifiers |= Qt::AltModifier;
+    if (packet.data.modifiers & KEYMOD_NUM_LOCK)
+        modifiers |= Qt::KeypadModifier;
+#if 0
+    // special case for AltGr
+    if (packet.data.modifiers & KEYMOD_ALTGR)
+        key = Qt::Key_AltGr;
+#endif
+
+    // figure out whether it's a press
+    bool isPress = packet.data.flags & KEY_DOWN;
+    // figure out whether the key is still pressed and the key event is repeated
+    bool isRepeat = packet.data.flags & KEY_REPEAT;
+
+    int key = Qt::Key_unknown;
+    int unicode = 0;
+
+    if (((packet.data.flags & KEY_SYM_VALID) && key_sym_displayable(unicode = packet.data.key_sym))
+        || ((packet.data.flags & KEY_CAP_VALID) && key_sym_displayable(unicode = packet.data.key_cap))) {
+        if (unicode <= 0x0ff) {
+            if (unicode >= 'a' && unicode <= 'z')
+                key = Qt::Key_A + unicode - 'a';
+            else
+                key = unicode;
+        }
+        // Ctrl<something> or Alt<something> is not a displayable character
+        if (modifiers & (Qt::ControlModifier | Qt::AltModifier))
+            unicode = 0;
+    } else {
+        unicode = 0;
+
+        unsigned long sym = 0;
+        if (packet.data.flags & KEY_SYM_VALID)
+            sym = packet.data.key_sym;
+        else if (packet.data.flags & KEY_CAP_VALID)
+            sym = packet.data.key_cap;
 
-    // if the unicode value is not ascii, we ignore it.
-    // TODO - do a complete mapping between all QNX scan codes and Qt codes
-    if (unicode != 0xffff && !isascii(unicode))
-        return; // unprintable character
+        switch (sym) {
+        case KEYCODE_ESCAPE: key = Qt::Key_Escape; unicode = 27; break;
+        case KEYCODE_TAB: key = Qt::Key_Tab; unicode = 9; break;
+        case KEYCODE_BACK_TAB: key = Qt::Key_Backtab; break;
+        case KEYCODE_BACKSPACE: key = Qt::Key_Backspace; unicode = 127; break;
+        case KEYCODE_RETURN: key = Qt::Key_Return; break;
+        case KEYCODE_KP_ENTER: key = Qt::Key_Enter; break;
+        case KEYCODE_INSERT:
+        case KEYCODE_KP_INSERT:
+            key = Qt::Key_Insert; break;
+        case KEYCODE_KP_DELETE:
+            if (modifiers & Qt::KeypadModifier) {
+                key = Qt::Key_Comma;
+                break;
+            }
+        // fall through
+        case KEYCODE_DELETE:
+            key = Qt::Key_Delete; break;
+        case KEYCODE_PAUSE:
+        case KEYCODE_BREAK:
+            if (modifiers & (Qt::ControlModifier | Qt::AltModifier))
+                return; // sometimes occurs at the middle of a key sequence
+            key = Qt::Key_Pause; break;
+        case KEYCODE_PRINT:
+            if (modifiers & (Qt::ControlModifier | Qt::AltModifier))
+                return; // sometimes occurs at the middle of a key sequence
+            key = Qt::Key_Print; break;
+        case KEYCODE_SYSREQ:
+            key = Qt::Key_SysReq; break;
+        case KEYCODE_HOME:
+        case KEYCODE_KP_HOME:
+            key = Qt::Key_Home; break;
+        case KEYCODE_END:
+        case KEYCODE_KP_END:
+            key = Qt::Key_End; break;
+        case KEYCODE_LEFT:
+        case KEYCODE_KP_LEFT:
+            key = Qt::Key_Left; break;
+        case KEYCODE_UP:
+        case KEYCODE_KP_UP:
+            key = Qt::Key_Up; break;
+        case KEYCODE_RIGHT:
+        case KEYCODE_KP_RIGHT:
+            key = Qt::Key_Right; break;
+        case KEYCODE_DOWN:
+        case KEYCODE_KP_DOWN:
+            key = Qt::Key_Down; break;
+        case KEYCODE_PG_UP:
+        case KEYCODE_KP_PG_UP:
+            key = Qt::Key_PageUp; break;
+        case KEYCODE_PG_DOWN:
+        case KEYCODE_KP_PG_DOWN:
+            key = Qt::Key_PageDown; break;
+
+        case KEYCODE_LEFT_SHIFT:
+        case KEYCODE_RIGHT_SHIFT:
+            key = Qt::Key_Shift; break;
+        case KEYCODE_LEFT_CTRL:
+        case KEYCODE_RIGHT_CTRL:
+            key = Qt::Key_Control; break;
+        case KEYCODE_LEFT_ALT:
+        case KEYCODE_RIGHT_ALT:
+            key = Qt::Key_Alt; break;
+        case KEYCODE_CAPS_LOCK:
+            key = Qt::Key_CapsLock; break;
+        case KEYCODE_NUM_LOCK:
+            key = Qt::Key_NumLock; break;
+        case KEYCODE_SCROLL_LOCK:
+            key = Qt::Key_ScrollLock; break;
+
+        case KEYCODE_F1:
+        case KEYCODE_F2:
+        case KEYCODE_F3:
+        case KEYCODE_F4:
+        case KEYCODE_F5:
+        case KEYCODE_F6:
+        case KEYCODE_F7:
+        case KEYCODE_F8:
+        case KEYCODE_F9:
+        case KEYCODE_F10:
+        case KEYCODE_F11:
+        case KEYCODE_F12:
+            key = Qt::Key_F1 + sym - KEYCODE_F1; break;
+
+        case KEYCODE_MENU: key = Qt::Key_Menu; break;
+        case KEYCODE_LEFT_HYPER: key = Qt::Key_Hyper_L; break;
+        case KEYCODE_RIGHT_HYPER: key = Qt::Key_Hyper_R; break;
+
+        case KEYCODE_KP_PLUS: key = Qt::Key_Plus; break;
+        case KEYCODE_KP_MINUS: key = Qt::Key_Minus; break;
+        case KEYCODE_KP_MULTIPLY: key = Qt::Key_multiply; break;
+        case KEYCODE_KP_DIVIDE: key = Qt::Key_Slash; break;
+        case KEYCODE_KP_FIVE:
+            if (!(modifiers & Qt::KeypadModifier))
+                key = Qt::Key_5;
+            break;
+
+        default: // none of the above
+            break;
+        }
+    }
+
+    if (key == Qt::Key_unknown && unicode == 0)
+        return;
 
     // call processKeyEvent. This is where all the magic happens to insert a
     // key event into Qt's event loop.