diff options
Diffstat (limited to 'drivers/lcd/ssd1289_lld.c')
-rw-r--r-- | drivers/lcd/ssd1289_lld.c | 246 |
1 files changed, 246 insertions, 0 deletions
diff --git a/drivers/lcd/ssd1289_lld.c b/drivers/lcd/ssd1289_lld.c new file mode 100644 index 00000000..12782e31 --- /dev/null +++ b/drivers/lcd/ssd1289_lld.c @@ -0,0 +1,246 @@ +#include "ssd1289_lld.h" + +#ifdef LCD_USE_SSD1289 + +uint8_t orientation; +uint16_t DeviceCode; +extern uint16_t lcd_width, lcd_height; + +static __inline void lld_lcdWriteIndex(uint16_t index) { + Clr_RS; + Set_RD; + + palWritePort(LCD_DATA_PORT, index); + + Clr_WR; + Set_WR; +} + +static __inline void lld_lcdWriteData(uint16_t data) { + Set_RS; + + palWritePort(LCD_DATA_PORT, data); + + Clr_WR; + Set_WR; +} + +static __inline void lld_lcdWriteReg(uint16_t lcdReg,uint16_t lcdRegValue) { + Clr_CS; + lld_lcdWriteIndex(lcdReg); + lld_lcdWriteData(lcdRegValue); + Set_CS; +} + +static __inline uint16_t lld_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 lld_lcdReadReg(uint16_t lcdReg) { + uint16_t lcdRAM; + + Clr_CS; + lld_lcdWriteIndex(lcdReg); + lcdRAM = lld_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) { + lld_lcdWriteReg(0x004e, x); + lld_lcdWriteReg(0x004f, y); + } else if(LANDSCAPE) { + lld_lcdWriteReg(0x004e, y); + lld_lcdWriteReg(0x004f, x); + } +} + +void lld_lcdSetOrientation(uint8_t newOrientation) { + orientation = newOrientation; + + switch(orientation) { + case portrait: + lld_lcdWriteReg(0x0001, 0x2B3F); + lld_lcdWriteReg(0x0011, 0x6070); + lcd_height = SCREEN_HEIGHT; + lcd_width = SCREEN_WIDTH; + break; + case landscape: + lld_lcdWriteReg(0x0001, 0x293F); + lld_lcdWriteReg(0x0011, 0x6078); + lcd_height = SCREEN_WIDTH; + lcd_width = SCREEN_HEIGHT; + break; + case portraitInv: + lld_lcdWriteReg(0x0001, 0x693F); + lld_lcdWriteReg(0x0011, 0x6040); + lcd_height = SCREEN_HEIGHT; + lcd_width = SCREEN_WIDTH; + break; + case landscapeInv: + lld_lcdWriteReg(0x0001, 0x6B3F); + lld_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) { + lld_lcdSetCursor(x0, y0); + + x1 -= x0; + y1 -= y0; + + switch(lcdGetOrientation()) { + case portrait: + lld_lcdWriteReg(0x44, ((x0+x1-1) << 8) | x0); + lld_lcdWriteReg(0x45, y0); + lld_lcdWriteReg(0x46, y0+y1-1); + break; + case landscape: + lld_lcdWriteReg(0x44, ((y0+y1-1) << 8) | y1); + lld_lcdWriteReg(0x45, x0); + lld_lcdWriteReg(0x46, x0+x1-1); + break; + case portraitInv: + lld_lcdWriteReg(0x44, ((x0+x1-1) << 8) | x0); + lld_lcdWriteReg(0x45, y0); + lld_lcdWriteReg(0x46, y0+y1-1); + break; + case landscapeInv: + lld_lcdWriteReg(0x44, ((y0+y1-1) << 8) | y1); + lld_lcdWriteReg(0x45, x0); + lld_lcdWriteReg(0x46, x0+x1-1); + break; + } +} + +void lld_lcdFillArea(uint16_t x0, uint16_t y0, uint16_t x1, uint16_t y1, uint16_t color) { + uint32_t index = 0, area; + + area = ((x1-x0)*(y1-y0)); + + lld_lcdSetWindow(x0, y0, x1, y1); + Clr_CS; + lld_lcdWriteIndex(0x0022); + for(index = 0; index < area; index++) + lld_lcdWriteData(color); + Set_CS; +} + +void lld_lcdClear(uint16_t color) { + uint32_t index = 0; + + lld_lcdSetCursor(0, 0); + Clr_CS; + lld_lcdWriteIndex(0x0022); + for(index = 0; index < SCREEN_WIDTH * SCREEN_HEIGHT; index++) + lld_lcdWriteData(color); + Set_CS; +} + +uint16_t lld_lcdGetPixelColor(uint16_t x, uint16_t y) { + uint16_t dummy; + + lld_lcdSetCursor(x,y); + Clr_CS; + lld_lcdWriteIndex(0x0022); + dummy = lld_lcdReadData(); + dummy = lld_lcdReadData(); + Set_CS; + + return dummy; +} + +void lld_lcdDrawPixel(uint16_t x, uint16_t y, uint16_t color) { + lld_lcdSetCursor(x, y); + lld_lcdWriteReg(0x0022, color); +} + +void lld_lcdInit(void) { + DeviceCode = lld_lcdReadReg(0x0000); + + lld_lcdWriteReg(0x0000,0x0001); lcdDelay(5); + lld_lcdWriteReg(0x0003,0xA8A4); lcdDelay(5); + lld_lcdWriteReg(0x000C,0x0000); lcdDelay(5); + lld_lcdWriteReg(0x000D,0x080C); lcdDelay(5); + lld_lcdWriteReg(0x000E,0x2B00); lcdDelay(5); + lld_lcdWriteReg(0x001E,0x00B0); lcdDelay(5); + lld_lcdWriteReg(0x0001,0x2B3F); lcdDelay(5); + lld_lcdWriteReg(0x0002,0x0600); lcdDelay(5); + lld_lcdWriteReg(0x0010,0x0000); lcdDelay(5); + lld_lcdWriteReg(0x0011,0x6070); lcdDelay(5); + lld_lcdWriteReg(0x0005,0x0000); lcdDelay(5); + lld_lcdWriteReg(0x0006,0x0000); lcdDelay(5); + lld_lcdWriteReg(0x0016,0xEF1C); lcdDelay(5); + lld_lcdWriteReg(0x0017,0x0003); lcdDelay(5); + lld_lcdWriteReg(0x0007,0x0133); lcdDelay(5); + lld_lcdWriteReg(0x000B,0x0000); lcdDelay(5); + lld_lcdWriteReg(0x000F,0x0000); lcdDelay(5); + lld_lcdWriteReg(0x0041,0x0000); lcdDelay(5); + lld_lcdWriteReg(0x0042,0x0000); lcdDelay(5); + lld_lcdWriteReg(0x0048,0x0000); lcdDelay(5); + lld_lcdWriteReg(0x0049,0x013F); lcdDelay(5); + lld_lcdWriteReg(0x004A,0x0000); lcdDelay(5); + lld_lcdWriteReg(0x004B,0x0000); lcdDelay(5); + lld_lcdWriteReg(0x0044,0xEF00); lcdDelay(5); + lld_lcdWriteReg(0x0045,0x0000); lcdDelay(5); + lld_lcdWriteReg(0x0046,0x013F); lcdDelay(5); + lld_lcdWriteReg(0x0030,0x0707); lcdDelay(5); + lld_lcdWriteReg(0x0031,0x0204); lcdDelay(5); + lld_lcdWriteReg(0x0032,0x0204); lcdDelay(5); + lld_lcdWriteReg(0x0033,0x0502); lcdDelay(5); + lld_lcdWriteReg(0x0034,0x0507); lcdDelay(5); + lld_lcdWriteReg(0x0035,0x0204); lcdDelay(5); + lld_lcdWriteReg(0x0036,0x0204); lcdDelay(5); + lld_lcdWriteReg(0x0037,0x0502); lcdDelay(5); + lld_lcdWriteReg(0x003A,0x0302); lcdDelay(5); + lld_lcdWriteReg(0x003B,0x0302); lcdDelay(5); + lld_lcdWriteReg(0x0023,0x0000); lcdDelay(5); + lld_lcdWriteReg(0x0024,0x0000); lcdDelay(5); + lld_lcdWriteReg(0x0025,0x8000); lcdDelay(5); + lld_lcdWriteReg(0x004f,0x0000); lcdDelay(5); + lld_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 + |