/*

  * GraphLCD driver library

  *

  * gu126x64D-K610A4.h -  8-bit driver module for Noritake GU126x64D-K610A4 VFD

  *                       displays. The VFD is operating in its 8 bit-mode

  *                       connected to a single PC parallel port.

  *

  * based on:

  *   gu256x64-372 driver module for graphlcd

  *     (c) 2004 Andreas 'randy' Weinberger (randy AT smue.org)

  *   gu256x64-3900 driver module for graphlcd

  *     (c) 2004 Ralf Mueller (ralf AT bj-ig.de)

  *   gu140x32f driver module for graphlcd

  *     (c) 2003 Andreas Brachold <vdr04 AT deltab.de>

  *   ks0108 driver module for graphlcd

  *     (c) 2004 Andreas 'randy' Weinberger (randy AT smue.org)

  *

  * This file is released under the GNU General Public License. Refer

  * to the COPYING file distributed with this package.

  *

  * (c) 2007 Alexander Rieger (Alexander.Rieger AT inka.de)

  */

 #ifndef _GLCDDRIVERS_GU126X64D_K610A4_H_

 #define _GLCDDRIVERS_GU126X64D_K610A4_H_

 #include "driver.h"

 //===============================================================================

 //     namespace GLCD

 //===============================================================================

 namespace GLCD

 {

 class cDriverConfig;

 class cParallelPort;

 //===============================================================================

 //     class cDriverGU126X64D_K610A4

 //===============================================================================

 class cDriverGU126X64D_K610A4 : public cDriver

 {

 public:

     //---------------------------------------------------------------------------

     //     constructor/destructor

     //---------------------------------------------------------------------------

     cDriverGU126X64D_K610A4(cDriverConfig * config);

     virtual ~cDriverGU126X64D_K610A4();

     //---------------------------------------------------------------------------

     //     from cDriver

     //---------------------------------------------------------------------------

     virtual int Init();

     virtual int DeInit();

     virtual void Clear();

     virtual void Set8Pixels(int x, int y, unsigned char data);

     virtual void Refresh(bool refreshAll = false);

     virtual void SetBrightness(unsigned int percent);

     //---------------------------------------------------------------------------

     //     display-specific enums/methods/etc.

     //---------------------------------------------------------------------------

     enum FontType

     {

         FONT_PROP_SML

     ,   FONT_FIX_MED

     ,   FONT_FIX_BIG

     };

     void setPixel        (int x, int y);

     int  cmdReset        ();

     int  cmdPower        (bool fOn);

     int  cmdLock         (bool fLock);

     int  cmdSetCursorPos (unsigned char x, unsigned char y);

     int  cmdGraphicWrite (unsigned char count);

     int  cmdGraphicData  (unsigned char data);

     int  cmdSetBrightness(unsigned int  percent);

     int  cmdSetFont      (FontType);

     int  cmdWriteText    (const char *theText);

     int  cmdDrawRect     (unsigned char x1, unsigned char y1, unsigned char x2, unsigned char y2);

     int  cmdSetMacro     (unsigned char theMacroNum, unsigned char theCountBytes);

     int  cmdSetPixel     (bool fSet = true);

     int  cmdClrPixel     ();

     void claimPort();

     void releasePort();

 private:

     //---------------------------------------------------------------------------

     //     helper methods

     //---------------------------------------------------------------------------

     void clearVFDMem();

     int  checkSetup();

     int  initParallelPort();

     void initDisplay();

     bool waitForStatus(unsigned char theMask, unsigned char theValue, int theMaxWait);

     void writeParallel(unsigned char data);

     int  write(unsigned char data);

     void ensureNotInGraphics();

     bool isLogEnabled(int theLevel) const;

     //---------------------------------------------------------------------------

     //     attributes

     //---------------------------------------------------------------------------

     cParallelPort  *port;

     cDriverConfig  *config;

     cDriverConfig  *oldConfig;

     int             myNumRows;

     unsigned char **myDrawMem;

     unsigned char **myVFDMem;

     bool            myUseSleepInit;

     long            myPortDelayNS;

     long            myDelay125NS;

     int             myRefreshCounter;

     int             myClaimCounter;

     int             myDataPendingCounter;

     unsigned int    myLogFlags;

 }; // class cDriverGU126X64D_K610A4

 } // namespace GLCD

 #endif