1 files changed, 116 insertions, 0 deletions
diff --git a/rhtvision/include/tv/linux/key.h b/rhtvision/include/tv/linux/key.h
new file mode 100644
index 0000000..b44abc1
--- /dev/null
+++ b/rhtvision/include/tv/linux/key.h
@@ -0,0 +1,116 @@
+/* Linux keyboard handler routines header.
+   Copyright by Salvador E. Tropea (SET) (2001-2002)
+   Covered by the GPL license. */
+#if defined(TVOSf_Linux) && !defined(LINUXKEY_HEADER_INCLUDED)
+#define LINUXKEY_HEADER_INCLUDED
+struct TEvent;
+
+const int MaxLenEscapeSequence=16;
+
+// A class to encapsulate the globals, all is static!
+class TGKeyLinux : public TGKey
+{
+public:
+ TGKeyLinux() {};
+
+ // Function replacements
+ static void     Suspend();
+ static void     Resume();
+ static int      KbHit();
+ static void     Clear();
+ static ushort   GKey();
+ static unsigned GetShiftState();
+ static void     FillTEvent(TEvent &e);
+ static void     SetKbdMapping(int version);
+ static int      GetKbdMapping(int version);
+
+ enum { Default, KOI8 };
+
+ // Setup the pointers to point our members
+ static void     Init(int map);
+
+ friend class TScreenLinux;
+ friend class TDisplayLinux;
+
+protected:
+ // Specific for this driver
+ static int InitOnce();
+ // Low level code to get a key and process it
+ static int GetRaw();
+ // A low level helper
+ static int GetKeyParsed();
+ // Get a key from the buffer
+ static int GetKeyFromBuffer();
+ // Escape sequences parser
+ static int ProcessEscape();
+ // Low level function to find the key modifiers
+ static unsigned GetLinuxShiftState();
+ // Trap the console switching signals
+ static void hookVTSignals();
+ // Stop traping the console switching signals
+ static void unHookVTSignals();
+ // Change the keyboard map
+ static void patchKeyMap();
+ // Restore keymap
+ static void unPatchKeyMap();
+ // Initializes the patching tables
+ static void keyMapInit();
+ // Signal handler called when we lose the VT
+ static void releaseVTHandler(int);
+ // Signal handler called when we get back the VT
+ static void acquireVTHandler(int);
+ // Small helpers to do both operations and check
+ static void doHookAndPatch();
+ static void doUnHookAndUnPatch();
+ // File handle for the input
+ static int hIn;
+ // Stream for the input
+ static FILE *fIn;
+ // Old mode of the input file handle
+ static int oldInFlags;
+ // New mode of the input file handle
+ static int newInFlags;
+ // Termios data of the console before starting
+ static struct termios inTermiosOrig;
+ // Our termios settings
+ static struct termios inTermiosNew;
+ // Description of the last error
+ static const char *error;
+ // Buffer to store a key escape sequence while we analize it.
+ // If a sequence failed the keys must be returned from here.
+ static int bufferKeys[MaxLenEscapeSequence];
+ // How many keys we have in the buffer
+ static int keysInBuffer;
+ // The next key to return. It avoids using things like ungetc
+ static int nextKey;
+ // Last key code we decoded
+ static int lastKeyCode;
+ // Last set of modifiers
+ static int lastModifiers;
+ // Modifiers in the TV format
+ static int translatedModifiers;
+ // ASCII of the key
+ static char ascii;
+ // Keyboard translation tables
+ static unsigned char kbToName[128];
+ static unsigned char kbExtraFlags[128];
+ // Flag to disable keyboard patching. Use SetKbdMapping(linuxDisableKeyPatch).
+ static char dontPatchKeyboard;
+ // Our Virtual Terminal number
+ static int ourVT;
+ // The mode of our VT before we started
+ static struct vt_mode oldVTMode;
+ // The mode of our VT used by TV
+ static struct vt_mode newVTMode;
+ // Indicates if we hooked thed signals and patched the keyboard
+ static char vtHooked;
+ // Indicates if the ioctl to patch the keyboard is usable
+ static char canPatchKeyboard;
+ // Indicates if we patched the keyboard
+ static char keyPatched;
+ // Generic keyboard entry structure used in various places
+ static struct kbentry entry;
+};
+
+#endif // LINUXKEY_HEADER_INCLUDED
+