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path: root/drivers/lcd/ssd1289_lld.c
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Diffstat (limited to 'drivers/lcd/ssd1289_lld.c')
-rw-r--r--drivers/lcd/ssd1289_lld.c246
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
+
generated by cgit v1.2.3 (git 2.25.1) at 2024-10-25 06:39:27 +0000