?? lcddriver.c
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#include<stdlib.h>
#include<math.h>
#define LCDWIDTH 240
#define LCDWIDTHB 30
#define LCDHEIGHT 128
#define LCDDISPMODEGRAPHON 0x98
#define LCDDISPMODETEXTON 0x94
#define LCDDISPMODECURSORON 0x92
#define LCDDISPMODECURSORBLINK 0x91
#define LCDMODEICGROM 0x80
#define LCDMODEEXCGRAM 0x88
#define LCDMODEOR 0x80
#define LCDMODEEXOR 0x81
#define LCDMODEAND 0x82
#define LCDMODETEXTATTRIB 0x84
#define LCDCURSORDEF 0x0a0
#define LCDCURSORPOSITION 0x21
#define LCDCURSORSIZE 0x0a0
#define LCDSETTEXTHOME 0x40
#define LCDSETTEXTAREA 0x41
#define LCDSETGRAPHHOME 0x42
#define LCDSETGRAPHAREA 0x43
#define LCDSETADDRESS 0x24
#define LCDWRITEINCADD 0x0c0
#define LCDAUTOWRITE 0x0b0
#define LCDAUTORESET 0x0b2
ioport unsigned int port8000;
ioport unsigned int port8001;
ioport unsigned int port8002;
#define LCDSTATUS port8000 //port8000
#define LCDCOMMAND port8001 // port8001
#define LCDDATA port8002 // port8002
struct struLCDGraph
{
void *pData;
unsigned int uDataMode;
unsigned int uDataLength;
unsigned int uMaxValue;
unsigned int uWindowX0,uWindowY0,uWindowX1,uWindowY1;
int nOriginX,nOriginY;
unsigned int uLineMode;
unsigned int bShowXCcoordinate; /* 是否繪制x坐標軸 */
unsigned int bShowYCcoordinate; /* 是否繪制y坐標軸 */
};
void LCDSetOrigin(int nX,int nY);
void LCDSetScreenBuffer(unsigned int *_pScreenBuffer);
void LCDTurnOn();
void LCDTurnOff();
void LCDCLS();
void LCDSetDelay(unsigned int nDelay);
void _Delay(unsigned int nTime);
void LCDRefreshScreen();
void LCDPutPixel(int x,int y,unsigned int color);
void LCDGraph(struct struLCDGraph *Gstru);
void LCDWriteBytes(unsigned int *pData,int x,int y,unsigned color);
void LCDPutCString(unsigned int *pData,int x,int y,unsigned int nCharNumber,unsigned color);
void LCDGraph2(struct struLCDGraph *Gstru,struct struLCDGraph *Gstru1);
void LCDDrawGraph(struct struLCDGraph *Gstru);
void LCDOff();
unsigned int LCDCheckStatus(unsigned int nLCDFunctionID);
void LCDCommand(unsigned int nLCDCommand);
void LCDData(unsigned int nLCDData);
void LCDSetCursorPosition(unsigned int x,unsigned int y);
void LCDSetCursorSize(unsigned int nLCDLineNumber);
void LCDSetTextHomeAddress(unsigned int nLCDPosition);
void LCDSetTextHomeArea(unsigned int nLCDArea);
void LCDSetGraphHomeAddress(unsigned int nLCDPosition);
void LCDSetGraphHomeArea(unsigned int nLCDArea);
void LCDSetAddress(unsigned int nLCDAddress);
void LCDWriteDataIncAdd(unsigned int nLCDData);
unsigned int _nOriginX=0,_nOriginY=0;
unsigned int *_pScreen;
unsigned int _nXLength=LCDWIDTH,_nYLength=LCDHEIGHT,_nXWord=LCDWIDTHB,_nYWord=LCDHEIGHT;
unsigned int _bRefreshMode=0;
unsigned int _nLCDDelay=0;
unsigned int _nScreenX0=0,_nScreenX1=LCDWIDTH-1,_nScreenY0=0,_nScreenY1=LCDHEIGHT-1;
void LCDSetDelay(unsigned int nDelay)
{
_nLCDDelay=nDelay;
}
void LCDSetOrigin(int nX,int nY)
{
_nOriginX=nX; _nOriginY=nY;
}
void LCDSetScreenBuffer(unsigned int *_pScreenBuffer)
{
_pScreen=_pScreenBuffer;
}
void LCDCLS()
{
int nLCDWork1,nLCDWork2;
unsigned int *pLCDWork;
int delay;
pLCDWork=_pScreen;
LCDSetAddress(0);
LCDCommand(LCDAUTOWRITE);
for ( nLCDWork1=0;nLCDWork1<LCDHEIGHT;nLCDWork1++ )
for ( nLCDWork2=0;nLCDWork2<LCDWIDTHB;nLCDWork2++ )
{
LCDData(0); (*pLCDWork++)=0;
//for(delay=0;delay<0x1000;delay++);
}
LCDCommand(LCDAUTORESET);
}
void LCDTurnOn()
{
LCDCommand(LCDDISPMODEGRAPHON);
LCDCommand(LCDMODEICGROM);
LCDSetGraphHomeAddress(0); LCDSetGraphHomeArea(30);
LCDSetAddress(0);
}
void LCDTurnOff()
{
LCDOff();
}
void _Delay(unsigned int nDelay)
{
int ii,jj,kk=0;
for ( ii=0;ii<nDelay;ii++ )
{
for ( jj=0;jj<64;jj++ )
{
kk++;
}
}
}
void LCDRefreshScreen()
{
unsigned int nLCDWork1,nLCDWork2;
unsigned int *pLCDWork;
pLCDWork=_pScreen;
LCDSetAddress(0);
LCDCommand(LCDAUTOWRITE);
for ( nLCDWork1=0;nLCDWork1<LCDHEIGHT;nLCDWork1++ )
for ( nLCDWork2=0;nLCDWork2<LCDWIDTHB;nLCDWork2++ )
LCDData((*pLCDWork++));
LCDCommand(LCDAUTORESET);
}
void LCDPutPixel(int x,int y,unsigned int color)
{
unsigned int nLCDX,nLCDY,nLCDWork,nLCDWork1,nLCDWork2;
unsigned *pLCDWork;
nLCDX=x+_nOriginX; nLCDY=_nYLength-y-1;
if ( nLCDX<_nScreenX0 || nLCDX>_nScreenX1 ) return;
if ( nLCDY<_nScreenY0 || nLCDY>_nScreenY1 ) return;
nLCDWork=nLCDX>>3; nLCDWork1=nLCDX&7; nLCDWork2=0x80;
nLCDWork2>>=nLCDWork1;
pLCDWork=_pScreen; pLCDWork+=nLCDWork; pLCDWork+=(nLCDY*LCDWIDTHB);
nLCDWork=(*pLCDWork);
if ( color==2 ) nLCDWork^=nLCDWork2;
else if ( color==0 ) { nLCDWork2=(~nLCDWork2)&0x0ff; nLCDWork&=nLCDWork2; }
else nLCDWork|=nLCDWork2;
nLCDWork&=0x0ff;
(*pLCDWork)=nLCDWork;
}
void LCDDrawLine(int x0, int y0, int x1, int y1, unsigned char color)
{
int x,y;
int dx,dy,t,error,xd,yd;
if ( (x0==x1)&&(y0==y1) ) LCDPutPixel(x0,y0,color);
else if ( y0==y1 )
{ if ( x0>x1 ) { t=x0; x0=x1; x1=t; t=y0; y0=y1; y1=t; }
for ( x=x0;x<=x1;x++ ) LCDPutPixel(x,y0,color);
}
else if ( x0==x1 )
{ if ( y0>y1 ) { t=x0; x0=x1; x1=t; t=y0; y0=y1; y1=t; }
for ( y=y0;y<=y1;y++ ) LCDPutPixel(x0,y,color);
}
else
{ xd=abs(x1-x0); yd=abs(y1-y0);
if ( xd>=yd )
{ if ( x0>x1 ) { t=x0; x0=x1; x1=t; t=y0; y0=y1; y1=t; }
error=(yd<<1)-(xd); LCDPutPixel(x0,y0,color);
x=x0; y=y0; dy=(y1>y0)?1:(-1);
while ( x<x1 )
{ x++;
if ( error<0 ) error+=(yd<<1); else { error+=((yd-xd)<<1); y+=dy; }
LCDPutPixel(x,y,color);
}
}
else
{ if ( y0>y1 ) { t=x0; x0=x1; x1=t; t=y0; y0=y1; y1=t; }
error=(xd<<1)-(yd); LCDPutPixel(x0,y0,color);
x=x0; y=y0; dx=(x1>x0)?1:(-1);
while ( y<y1 )
{ y++;
if ( error<0 ) error+=(xd<<1); else { error+=((xd-yd)<<1); x+=dx; }
LCDPutPixel(x,y,color);
}
}
}
}
#define DATAINTMODE 0
#define DATAUINTMODE 1
#define LINEMODE 0
#define PIXELMODE 1
#define BARMODE 2
void LCDGraph(struct struLCDGraph *Gstru)
{
LCDDrawGraph(Gstru);
LCDRefreshScreen();
}
void LCDGraph2(struct struLCDGraph *Gstru,struct struLCDGraph *Gstru1)
{
LCDDrawGraph(Gstru);
LCDDrawGraph(Gstru1);
LCDRefreshScreen();
}
void LCDDrawGraph(struct struLCDGraph *Gstru)
{
unsigned int *pUint,uWork,sx0,sy0,sx1,sy1,*puWork;
int *pInt,*pnWork,nWork,nx0,ny0,nx1,ny1;
int i;
float fWork,fxSample,fySample;
if ( Gstru->bShowXCcoordinate ) LCDDrawLine(Gstru->nOriginX,Gstru->nOriginY,Gstru->nOriginX,Gstru->uWindowY1,1);
if ( Gstru->bShowYCcoordinate ) LCDDrawLine(Gstru->nOriginX,Gstru->nOriginY,Gstru->uWindowX1,Gstru->nOriginY,1);
sx0=_nScreenX0; sx1=_nScreenX1; sy0=_nScreenY0; sy1=_nScreenY1;
pInt=(int *)(Gstru->pData); pUint=(unsigned int *)(Gstru->pData);
fySample=( Gstru->nOriginY==Gstru->uWindowY0 )?((float)(Gstru->uMaxValue)/abs(Gstru->uWindowY1-Gstru->uWindowY0)):((float)(Gstru->uMaxValue)/abs(Gstru->nOriginY-Gstru->uWindowY0));
fySample=-fySample;
fxSample=(float)(Gstru->uDataLength)/abs(Gstru->uWindowX1-Gstru->uWindowX0);
pnWork=pInt; puWork=pUint;
ny0=Gstru->nOriginY-(*pnWork)/fySample; nx0=Gstru->nOriginX; nx1=nx0+1;
_nScreenX0=Gstru->uWindowX0; _nScreenX1=Gstru->uWindowX1; _nScreenY0=_nYLength-Gstru->uWindowY1; _nScreenY1=_nYLength-Gstru->uWindowY0;
for ( i=1;i<Gstru->uWindowX1-Gstru->uWindowX0;i++,nx1++ )
{
uWork=i*fxSample;
switch ( Gstru->uDataMode )
{
case DATAINTMODE:
ny1=Gstru->nOriginY-(*(pnWork+uWork))/fySample;
break;
case DATAUINTMODE:
ny1=Gstru->nOriginY-(*(puWork+uWork))/fySample;
break;
}
switch ( Gstru->uLineMode )
{
case LINEMODE:
LCDDrawLine(nx0,ny0,nx1,ny1,1);
break;
case PIXELMODE:
LCDPutPixel(nx1,ny1,1);
break;
case BARMODE:
LCDDrawLine(nx1,Gstru->nOriginY,nx1,ny1,1);
break;
}
nx0=nx1; ny0=ny1;
}
_nScreenX0=sx0; _nScreenX1=sx1; _nScreenY0=sy0; _nScreenY1=sy1;
}
void LCDWriteBytes(unsigned int *pData,int x,int y,unsigned color)
{
int i,j;
unsigned int k,mcolor;
for ( i=0;i<8;i++ )
{
k=1;
for ( j=0;j<8;j++,k<<=1 )
{
if ( color==2 ) mcolor=2;
else
{
mcolor=( pData[i]&k )?(1):(0);
if ( color==0 ) mcolor=1-mcolor;
}
LCDPutPixel(x+i,y-j,mcolor);
}
}
LCDRefreshScreen();
}
void LCDPutCString(unsigned int *pData,int x,int y,unsigned int nCharNumber,unsigned color)
{
int i,j,l;
unsigned int k,mcolor;
for ( l=0;l<nCharNumber;l++ )
for ( i=0;i<16;i++ )
{
k=1;
for ( j=0;j<16;j++,k<<=1 )
{
if ( color==2 ) mcolor=2;
else
{
mcolor=( pData[l*16+i]&k )?(1):(0);
if ( color==0 ) mcolor=1-mcolor;
}
LCDPutPixel(x+l*16+i,y-j,mcolor);
}
}
LCDRefreshScreen();
}
void LCDOff()
{
LCDCheckStatus(0);
LCDCOMMAND=0x90;
}
void LCDCommand(unsigned int nLCDCommand)
{
LCDCheckStatus(0);
LCDCOMMAND=nLCDCommand;
}
void LCDData(unsigned int nLCDData)
{
LCDCheckStatus(0);
LCDDATA=nLCDData;
}
unsigned int LCDCheckStatus(unsigned int nLCDFunctionID)
{
unsigned int nLCDWork;
do { nLCDWork=LCDSTATUS; } while ( nLCDFunctionID==0 && nLCDWork&3!=3 );
return nLCDWork;
}
void LCDSetCursorPosition(unsigned int x,unsigned int y)
{
LCDData(x);
LCDData(y);
LCDCommand(LCDCURSORPOSITION);
}
void LCDSetCursorSize(unsigned int nLCDLineNumber)
{
LCDCommand(LCDCURSORSIZE|(nLCDLineNumber&7));
}
void LCDSetTextHomeAddress(unsigned int nLCDPosition)
{
LCDData(nLCDPosition&0x0ff);
LCDData((nLCDPosition>>8)&0x0ff);
LCDCommand(LCDSETTEXTHOME);
}
void LCDSetTextHomeArea(unsigned int nLCDArea)
{
LCDData(nLCDArea);
LCDData(0);
LCDCommand(LCDSETTEXTAREA);
}
void LCDSetGraphHomeAddress(unsigned int nLCDPosition)
{
LCDData(nLCDPosition&0x0ff);
LCDData((nLCDPosition>>8)&0x0ff);
LCDCommand(LCDSETGRAPHHOME);
}
void LCDSetGraphHomeArea(unsigned int nLCDArea)
{
LCDData(nLCDArea);
LCDData(0);
LCDCommand(LCDSETGRAPHAREA);
}
void LCDSetAddress(unsigned int nLCDAddress)
{
LCDData(nLCDAddress&0x0ff);
LCDData((nLCDAddress>>8)&0x0ff);
LCDCommand(LCDSETADDRESS);
}
void LCDWriteDataIncAdd(unsigned int nLCDData)
{
LCDData(nLCDData);
LCDCommand(LCDWRITEINCADD);
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