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#include "ssd1289_lld.h"
#ifdef LCD_USE_SSD1289
uint8_t orientation;
uint16_t DeviceCode;
extern uint16_t lcd_width, lcd_height;
static __inline void lcdWriteIndex(uint16_t index) {
Clr_RS;
Set_RD;
palWritePort(LCD_DATA_PORT, index);
Clr_WR;
Set_WR;
}
static __inline void lcdWriteData(uint16_t data) {
Set_RS;
palWritePort(LCD_DATA_PORT, data);
Clr_WR;
Set_WR;
}
static __inline void lcdWriteReg(uint16_t lcdReg,uint16_t lcdRegValue) {
Clr_CS;
lcdWriteIndex(lcdReg);
lcdWriteData(lcdRegValue);
Set_CS;
}
static __inline uint16_t lcdReadData(void) {
uint16_t value;
Set_RS;
Set_WR;
Clr_RD;
// change pin mode to digital input
LCD_DATA_PORT->CRH = 0x44444444;
LCD_DATA_PORT->CRL = 0x44444444;
value = palReadPort(LCD_DATA_PORT); // dummy
value = palReadPort(LCD_DATA_PORT);
// change pin mode back to digital output
LCD_DATA_PORT->CRH = 0x33333333;
LCD_DATA_PORT->CRL = 0x33333333;
Set_RD;
return value;
}
static __inline uint16_t lcdReadReg(uint16_t lcdReg) {
uint16_t lcdRAM;
Clr_CS;
lcdWriteIndex(lcdReg);
lcdRAM = lcdReadData();
Set_CS;
return lcdRAM;
}
static __inline void lcdDelay(uint16_t us) {
chThdSleepMicroseconds(us);
}
void lld_lcdSetCursor(uint16_t x, uint16_t y) {
if(PORTRAIT) {
lcdWriteReg(0x004e, x);
lcdWriteReg(0x004f, y);
} else if(LANDSCAPE) {
lcdWriteReg(0x004e, y);
lcdWriteReg(0x004f, x);
}
}
void lld_lcdSetOrientation(uint8_t newOrientation) {
orientation = newOrientation;
switch(orientation) {
case portrait:
lcdWriteReg(0x0001, 0x2B3F);
lcdWriteReg(0x0011, 0x6070);
lcd_height = SCREEN_HEIGHT;
lcd_width = SCREEN_WIDTH;
break;
case landscape:
lcdWriteReg(0x0001, 0x293F);
lcdWriteReg(0x0011, 0x6078);
lcd_height = SCREEN_WIDTH;
lcd_width = SCREEN_HEIGHT;
break;
case portraitInv:
lcdWriteReg(0x0001, 0x693F);
lcdWriteReg(0x0011, 0x6040);
lcd_height = SCREEN_HEIGHT;
lcd_width = SCREEN_WIDTH;
break;
case landscapeInv:
lcdWriteReg(0x0001, 0x6B3F);
lcdWriteReg(0x0011, 0x6048);
lcd_height = SCREEN_WIDTH;
lcd_width = SCREEN_HEIGHT;
break;
}
}
void lld_lcdSetWindow(uint16_t x0, uint16_t y0, uint16_t x1, uint16_t y1) {
lcdSetCursor(x0, y0);
switch(lcdGetOrientation()) {
case portrait:
lcdWriteReg(0x44, ((x0+x1-1) << 8) | x0);
lcdWriteReg(0x45, y0);
lcdWriteReg(0x46, y0+y1-1);
break;
case landscape:
lcdWriteReg(0x44, ((y0+y1-1) << 8) | y1);
lcdWriteReg(0x45, x0);
lcdWriteReg(0x46, x0+x1-1);
break;
case portraitInv:
lcdWriteReg(0x44, ((x0+x1-1) << 8) | x0);
lcdWriteReg(0x45, y0);
lcdWriteReg(0x46, y0+y1-1);
break;
case landscapeInv:
lcdWriteReg(0x44, ((y0+y1-1) << 8) | y1);
lcdWriteReg(0x45, x0);
lcdWriteReg(0x46, x0+x1-1);
break;
}
}
void lld_lcdClear(uint16_t color) {
uint32_t index = 0;
lld_lcdSetCursor(0,0);
Clr_CS;
lcdWriteIndex(0x0022);
for(index = 0; index < SCREEN_WIDTH * SCREEN_HEIGHT; index++)
lcdWriteData(color);
Set_CS;
}
uint16_t lld_lcdGetPixelColor(uint16_t x, uint16_t y) {
uint16_t dummy;
lld_lcdSetCursor(x,y);
Clr_CS;
lcdWriteIndex(0x0022);
dummy = lcdReadData();
dummy = lcdReadData();
Set_CS;
return dummy;
}
void lld_lcdDrawPixel(uint16_t x, uint16_t y, uint16_t color) {
lld_lcdSetCursor(x, y);
lcdWriteReg(0x0022, color);
}
void lld_lcdInit(void) {
DeviceCode = lcdReadReg(0x0000);
lcdWriteReg(0x0000,0x0001); lcdDelay(5);
lcdWriteReg(0x0003,0xA8A4); lcdDelay(5);
lcdWriteReg(0x000C,0x0000); lcdDelay(5);
lcdWriteReg(0x000D,0x080C); lcdDelay(5);
lcdWriteReg(0x000E,0x2B00); lcdDelay(5);
lcdWriteReg(0x001E,0x00B0); lcdDelay(5);
lcdWriteReg(0x0001,0x2B3F); lcdDelay(5);
lcdWriteReg(0x0002,0x0600); lcdDelay(5);
lcdWriteReg(0x0010,0x0000); lcdDelay(5);
lcdWriteReg(0x0011,0x6070); lcdDelay(5);
lcdWriteReg(0x0005,0x0000); lcdDelay(5);
lcdWriteReg(0x0006,0x0000); lcdDelay(5);
lcdWriteReg(0x0016,0xEF1C); lcdDelay(5);
lcdWriteReg(0x0017,0x0003); lcdDelay(5);
lcdWriteReg(0x0007,0x0133); lcdDelay(5);
lcdWriteReg(0x000B,0x0000); lcdDelay(5);
lcdWriteReg(0x000F,0x0000); lcdDelay(5);
lcdWriteReg(0x0041,0x0000); lcdDelay(5);
lcdWriteReg(0x0042,0x0000); lcdDelay(5);
lcdWriteReg(0x0048,0x0000); lcdDelay(5);
lcdWriteReg(0x0049,0x013F); lcdDelay(5);
lcdWriteReg(0x004A,0x0000); lcdDelay(5);
lcdWriteReg(0x004B,0x0000); lcdDelay(5);
lcdWriteReg(0x0044,0xEF00); lcdDelay(5);
lcdWriteReg(0x0045,0x0000); lcdDelay(5);
lcdWriteReg(0x0046,0x013F); lcdDelay(5);
lcdWriteReg(0x0030,0x0707); lcdDelay(5);
lcdWriteReg(0x0031,0x0204); lcdDelay(5);
lcdWriteReg(0x0032,0x0204); lcdDelay(5);
lcdWriteReg(0x0033,0x0502); lcdDelay(5);
lcdWriteReg(0x0034,0x0507); lcdDelay(5);
lcdWriteReg(0x0035,0x0204); lcdDelay(5);
lcdWriteReg(0x0036,0x0204); lcdDelay(5);
lcdWriteReg(0x0037,0x0502); lcdDelay(5);
lcdWriteReg(0x003A,0x0302); lcdDelay(5);
lcdWriteReg(0x003B,0x0302); lcdDelay(5);
lcdWriteReg(0x0023,0x0000); lcdDelay(5);
lcdWriteReg(0x0024,0x0000); lcdDelay(5);
lcdWriteReg(0x0025,0x8000); lcdDelay(5);
lcdWriteReg(0x004f,0x0000); lcdDelay(5);
lcdWriteReg(0x004e,0x0000); lcdDelay(5);
}
uint16_t lld_lcdGetOrientation(void) {
return orientation;
}
uint16_t lld_lcdGetHeight(void) {
return lcd_height;
}
uint16_t lld_lcdGetWidth(void) {
return lcd_width;
}
#endif
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