gui_mouse_driverps2.lst

Keil C下通过的UCGUI,UCGUI的移植源代码

C51 COMPILER V8.05a   GUI_MOUSE_DRIVERPS2                                                  04/11/2008 14:18:45 PAGE 1   


C51 COMPILER V8.05a, COMPILATION OF MODULE GUI_MOUSE_DRIVERPS2
OBJECT MODULE PLACED IN GUI_MOUSE_DriverPS2.obj
COMPILER INVOKED BY: D:\Program Files\keil\C51\BIN\C51.EXE gui\Core\GUI_MOUSE_DriverPS2.c LARGE BROWSE MDU_F120 DEBUG OB
                    -JECTEXTEND PRINT(.\GUI_MOUSE_DriverPS2.lst) OBJECT(GUI_MOUSE_DriverPS2.obj)

line level    source

   1          /*
   2          *********************************************************************************************************
   3          *                                                uC/GUI
   4          *                        Universal graphic software for embedded applications
   5          *
   6          *                       (c) Copyright 2002, Micrium Inc., Weston, FL
   7          *                       (c) Copyright 2002, SEGGER Microcontroller Systeme GmbH
   8          *
   9          *              礐/GUI is protected by international copyright laws. Knowledge of the
  10          *              source code may not be used to write a similar product. This file may
  11          *              only be used in accordance with a license and should not be redistributed
  12          *              in any way. We appreciate your understanding and fairness.
  13          *
  14          ----------------------------------------------------------------------
  15          File        : GUITOUCH.C
  16          Purpose     : Touch screen manager
  17          ----------------------------------------------------------------------
  18          This module handles the touch screen. It is configured in the file
  19          GUITouch.conf.h (Should be located in the Config\ directory).
  20          ----------------------------------------------------------------------
  21          */
  22          
  23          
  24          #include "gui\Core\LCD_Private.h"      /* private modul definitions & config */
  25          #include "gui\Core\GUI_Protected.h"
  26          
  27          /*********************************************************************
  28          *
  29          *                Local Variables & Defines
  30          *
  31          **********************************************************************
  32          */
  33          
  34          static int  _ScreenX              = 0;    /* x-pos         */
  35          static int  _ScreenY              = 0;    /* y-pos         */
  36          static int  _NumBytesInBuffer     = 0;    /* bytes in rx buffer */
  37          static U8   _Buttons              = 0;    /* button status */
  38          static U8   _abInBuffer[3];               /* mouse rx buffer */
  39          
  40          
  41          
  42          /*********************************************************************
  43          *
  44          *           _EvaPacket
  45          *
  46          **********************************************************************
  47          
  48            Process data packet from mouse:
  49          
  50                        D7    D6    D5    D4    D3    D2    D1    D0
  51                      -----------------------------------------------
  52            1st byte  | --    --    Y-    X-     1    --    LB    RB
  53            2nd byte  | X7    X6    X5    X4    X3    X2    X1    X0
  54            3rd byte  | Y7    Y6    Y5    Y4    Y3    Y2    Y1    Y0
C51 COMPILER V8.05a   GUI_MOUSE_DRIVERPS2                                                  04/11/2008 14:18:45 PAGE 2   

  55            
  56          */
  57          
  58          static void _EvaPacket(void) {
  59   1        char a;
  60   1        GUI_PID_STATE State;
  61   1        _Buttons = _abInBuffer[0] & 0x03;
  62   1        a = _abInBuffer[1];
  63   1        // test x move sign.
  64   1        if(_abInBuffer[0] & 0x10) {
  65   2          a=-a;
  66   2          _ScreenX  -= a;
  67   2        }        /* direction is negative, move left */
  68   1        else {
  69   2          _ScreenX  += a;
  70   2        }
  71   1        a = _abInBuffer[2];
  72   1        // test y move sign.
  73   1        if(_abInBuffer[0] & 0x20) {
  74   2          a=-a;
  75   2          _ScreenY  += a;
  76   2        }  /* direction is negative, move down */ else {
  77   2          _ScreenY  -= a;
  78   2        }
  79   1        /* check min/max positions */    
  80   1        if (_ScreenX < 0) {
  81   2          _ScreenX = 0;
  82   2        } else if (_ScreenX > LCD_XSIZE-1) {
  83   2          _ScreenX = LCD_XSIZE-1;
  84   2        } if (_ScreenY < 0) {
  85   2          _ScreenY = 0;
  86   2        } else if (_ScreenY > LCD_YSIZE-1) {
  87   2          _ScreenY = LCD_YSIZE-1;
  88   2        }
  89   1        /* signal new mouse data */
  90   1        State.x       = _ScreenX;
  91   1        State.y       = _ScreenY;
  92   1        State.Pressed = _Buttons;
  93   1        GUI_MOUSE_StoreState(&State);
  94   1      }
  95          
  96          
  97          /*********************************************************************
  98          *
  99          *       GUI_MOUSE_DRIVER_PS2_OnRx : Mouse receive interrupt handler
 100          *
 101          **********************************************************************
 102          
 103            The PS2 mouse interrupt gets in three bytes from the mouse, then wakes
 104            up  the mouse LSR.
 105          */
 106          
 107          void GUI_MOUSE_DRIVER_PS2_OnRx(unsigned char Data) {
 108   1        if (!_NumBytesInBuffer) {
 109   2          /* check for start frame */
 110   2          if ((Data & 0x0c) == 0x08) {
 111   3            _abInBuffer[0] = Data;
 112   3            _NumBytesInBuffer++;
 113   3          }
 114   2        } else {
 115   2          _abInBuffer[_NumBytesInBuffer] = Data;
 116   2          _NumBytesInBuffer++;
C51 COMPILER V8.05a   GUI_MOUSE_DRIVERPS2                                                  04/11/2008 14:18:45 PAGE 3   

 117   2          if (_NumBytesInBuffer >= 3) {
 118   3            _EvaPacket();
 119   3            _NumBytesInBuffer = 0;
 120   3          }
 121   2        }
 122   1      }
 123          
 124          /*********************************************************************
 125          *
 126          *       GUI_MOUSE_DRIVER_PS2_Init
 127          *
 128          **********************************************************************
 129          */
 130          
 131          void GUI_MOUSE_DRIVER_PS2_Init(void) {
 132   1        _NumBytesInBuffer = 0; 
 133   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    349    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =     10       5
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


C51 COMPILATION COMPLETE.  0 WARNING(S),  0 ERROR(S)