/*****************************************************************************
*
* Description:
* Draw rectangular area with different boardser colors. Currently used
* by example game.
*
****************************************************************************/
void lcdRectBrd (uint8 x, uint8 y, uint8 xLen, uint8 yLen, uint8 color1, uint8 color2, uint8 color3)
{
uint32 i, j;
//select controller
selectLCD (TRUE);
lcdWindow1 (x, y, x + xLen - 1, y + yLen - 1);
lcdWrcmd (LCD_CMD_RAMWR); //write memory
for (i = 0; i < xLen; i++)
lcdWrdata (color2);
for (j = 1; j < (yLen - 2); j++)
{
lcdWrdata (color2);
for (i = 0; i < (xLen - 2); i++)
lcdWrdata (color1);
lcdWrdata (color3);
}
for (i = 0; i < xLen; i++)
lcdWrdata (color3);
//deselect controller
selectLCD (FALSE);
}
/*****************************************************************************
*
* Description:
* Initialize the LCD controller and SPI interface
* (0,0) is top left and (129,129) is bottom right
* 8 bits Color mode uses RRRGGGBB layout
*
****************************************************************************/
void
lcdInit(void)
{
bkgColor = 0;
textColor = 0;
//init SPI interface
initSpiForLcd();
//select controller
selectLCD(TRUE);
lcdWrcmd(LCD_CMD_SWRESET);
osSleep(1);
lcdWrcmd(LCD_CMD_SLEEPOUT);
lcdWrcmd(LCD_CMD_DISPON);
lcdWrcmd(LCD_CMD_BSTRON);
osSleep(1);
lcdWrcmd(LCD_CMD_MADCTL); //Memory data acces control
//lcdWrdata(MADCTL_HORIZ); //X Mirror and BGR format
lcdWrdata(0x98);
lcdWrcmd(LCD_CMD_COLMOD); //Colour mode
lcdWrdata(0x02); //256 colour mode select
lcdWrcmd(LCD_CMD_INVON); //Non Invert mode
lcdWrcmd(LCD_CMD_RGBSET); //LUT write
lcdWrdata(0); //Red
lcdWrdata(2);
lcdWrdata(4);
lcdWrdata(6);
lcdWrdata(9);
lcdWrdata(11);
lcdWrdata(13);
lcdWrdata(15);
lcdWrdata(0); //Green
lcdWrdata(2);
lcdWrdata(4);
lcdWrdata(6);
lcdWrdata(9);
lcdWrdata(11);
lcdWrdata(13);
lcdWrdata(15);
lcdWrdata(0); //Blue
lcdWrdata(6);
lcdWrdata(10);
lcdWrdata(15);
//deselect controller
selectLCD(FALSE);
lcdContrast(56);
lcdClrscr();
}
/*****************************************************************************
*
* Description:
* Initialize LCD controller for a window (to write in).
* Set start xy-position and xy-length.
* Selects/deselects LCD controller.
*
****************************************************************************/
void lcdWindow (uint8 xp, uint8 yp, uint8 xe, uint8 ye)
{
//select controller
selectLCD (TRUE);
lcdWindow1 (xp, yp, xe, ye);
//deselect controller
selectLCD (FALSE);
}
/*****************************************************************************
*
* Description:
* Initialize the LCD controller and SPI interface
* (0,0) is top left and (129,129) is bottom right
* 8 bits Color mode uses RRRGGGBB layout
*
****************************************************************************/
void
lcdInit(void)
{
bkgColor = 0;
textColor = 0;
//init SPI interface
initSpiForLcd();
//select controller
selectLCD(TRUE);
lcdWrcmd(LCD_CMD_SWRESET); //Software reset - Reset default values and all segment & common outputs are set to VC (display off: blank display)
osSleep(1);
lcdWrcmd(LCD_CMD_SLEEPOUT); //switch off SLEEPIN mode
lcdWrcmd(LCD_CMD_DISPON); //Turn on the display screen according to the current display data RAM content and the display timing and setting
lcdWrcmd(LCD_CMD_BSTRON); //Booster ON- This command turns on booster related circuit
osSleep(1);
lcdWrcmd(LCD_CMD_MADCTL); //Memory data acces control
lcdWrdata(MADCTL_HORIZ); //X Mirror and BGR format
lcdWrcmd(LCD_CMD_COLMOD); //Colour mode
lcdWrdata(0x02); //256 colour mode select
lcdWrcmd(LCD_CMD_INVON); //Non Invert mode
lcdWrcmd(LCD_CMD_RGBSET); //LUT write, Colour Set for 256-Color Display
lcdWrdata(0); //Red
lcdWrdata(2);
lcdWrdata(4);
lcdWrdata(6);
lcdWrdata(9);
lcdWrdata(11);
lcdWrdata(13);
lcdWrdata(15);
lcdWrdata(0); //Green
lcdWrdata(2);
lcdWrdata(4);
lcdWrdata(6);
lcdWrdata(9);
lcdWrdata(11);
lcdWrdata(13);
lcdWrdata(15);
lcdWrdata(0); //Blue
lcdWrdata(6);
lcdWrdata(10);
lcdWrdata(15);
//deselect controller
selectLCD(FALSE);
lcdContrast(56);
lcdClrscr();
}
/*****************************************************************************
*
* Description:
* Set display contrast
*
****************************************************************************/
void lcdContrast (uint8 cont) //vary between 0 - 127
{
//select controller
selectLCD (TRUE);
//set contrast cmd.
lcdWrcmd (LCD_CMD_SETCON);
lcdWrdata (cont);
//deselect controller
selectLCD (FALSE);
}
/*****************************************************************************
*
* Description:
* Shut down the LCD controller
*
****************************************************************************/
void lcdOff (void)
{
lcdClrscr ();
//select controller
selectLCD (TRUE);
lcdWrcmd (LCD_CMD_SLEEPIN);
//deselect controller
selectLCD (FALSE);
}
void modulo2(int nGpio){
int num;
switch(nGpio){
case GPIO_0 ... GPIO_5:
selectGPMC(nGpio);
break;
case GPIO_6 ... GPIO_17:
num = nGpio - 6;
GPIOPinMuxSetup(CONTROL_CONF_LCD_DATA(num), CONTROL_CONF_MUXMODE(7));
break;
case GPIO_18 ... GPIO_21:
num = nGpio - 18;
selectMII1RXD(nGpio);
break;
case GPIO_22 ... GPIO_25:
selectLCD(nGpio);
break;
case GPIO_26 ... GPIO_31:
selectMMC0(nGpio);
break;
}
}
/*****************************************************************************
*
* Description:
* Draw a rectangular area with specified color.
*
****************************************************************************/
void lcdRect (uint8 x, uint8 y, uint8 xLen, uint8 yLen, uint8 color)
{
uint32 i;
uint32 len;
//select controller
selectLCD (TRUE);
lcdWindow1 (x, y, x + xLen - 1, y + yLen - 1);
lcdWrcmd (LCD_CMD_RAMWR); //write memory
len = xLen * yLen;
for (i = 0; i < len; i++)
lcdWrdata (color);
//deselect controller
selectLCD (FALSE);
}
/*****************************************************************************
*
* Description:
* Clear screen (with current background color)
*
****************************************************************************/
void lcdClrscr (void)
{
uint32 i;
lcd_x = 0;
lcd_y = 0;
//select controller
selectLCD (TRUE);
lcdWindow1 (255, 255, 128, 128);
lcdWrcmd (LCD_CMD_RAMWR); //write memory
for (i = 0; i < 16900; i++)
lcdWrdata (bkgColor);
//deselect controller
selectLCD (FALSE);
}
/*****************************************************************************
*
* Description:
* Draw one character withc current foreground and background color
* at current xy position on display. Update x-position (+8).
*
****************************************************************************/
void
lcdData(tU8 data)
{
//select controller
selectLCD(TRUE);
if (data <= 127)
{
tU32 mapOffset;
tU8 i,j,byteToShift;
data -= 30;
mapOffset = 14*data;
lcdWrcmd(LCD_CMD_CASET);
lcdWrdata(lcd_x+2);
lcdWrdata(lcd_x+9);
lcdWrcmd(LCD_CMD_PASET);
lcdWrdata(lcd_y+2);
lcdWrdata(lcd_y+15);
lcdWrcmd(LCD_CMD_RAMWR);
for(i=0; i<14; i++)
{
byteToShift = charMap[mapOffset++];
for(j=0; j<8; j++)
{
if (byteToShift & 0x80)
lcdWrdata(textColor);
else
lcdWrdata(bkgColor);
byteToShift <<= 1;
}
}
}
//deselect controller
selectLCD(FALSE);
lcd_x += 8;
}
/*****************************************************************************
*
* Description:
* Draw rectangular area from bitmap. Specify xy-position and xy-length.
* Compressed format is supported.
*
* In uncompressed color mode, pData points to an area of xLen * yLen
* bytes with the icon.
* In compressed mode the escapeChar is used to denote that the next
* two bytes contain a length and a color (run length encoding)
* Note that is is still possible to specify the color value that
* equals the escape value in a compressed string.
*
****************************************************************************/
void
lcdIcon(tU8 x, tU8 y, tU8 xLen, tU8 yLen, tU8 compressionOn, tU8 escapeChar, const tU8* pData)
{
tU32 i,j;
tS32 len;
//select controller
selectLCD(TRUE);
lcdWindow1(x,y,x+xLen-1,y+yLen-1);
lcdWrcmd(LCD_CMD_RAMWR); //write memory
len = xLen*yLen;
if (compressionOn == FALSE)
{
for(i=0; i<len; i++)
lcdWrdata(*pData++);
}
else
while(len > 0)
{
if(*pData == escapeChar)
{
pData++;
j = *pData++;
for(i=0;i<j;i++)
lcdWrdata(*pData);
pData++;
len -= j;
}
else
{
lcdWrdata(*pData++);
len--;
}
}
//deselect controller
selectLCD(FALSE);
}
void initSpiForLcd(void) {
//make SPI slave chip select an output and set signal high
IODIR |= (LCD_CS | LCD_CLK | LCD_MOSI);
//deselect controller
selectLCD(FALSE);
//connect SPI bus to IO-pins
PINSEL0 |= 0x00001500;
//initialize SPI interface
SPI_SPCCR = 0x08;
SPI_SPCR = 0x20;
}
/*****************************************************************************
*
* Description:
* Initialize the SPI interface for the LCD controller
*
****************************************************************************/
void
initSpiForLcd(void)
{
//make SPI slave chip select an output and set signal high
IODIR |= (LCD_CS_V1_0 | LCD_CLK | LCD_MOSI);
//deselect controller
selectLCD(FALSE);
//connect SPI bus to IO-pins
PINSEL0 |= 0x00005500;
//initialize SPI interface
SPI_SPCCR = 0x08; //bus into master state
SPI_SPCR = 0x20; //size of sending data unit
}
