315 lines
7.4 KiB
C
315 lines
7.4 KiB
C
#include "s6d1121_lld.h"
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#ifdef LCD_USE_S6D1121
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#define LCD_RST_LOW palClearPad(LCD_RST_GPIO, LCD_RST_PIN)
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#define LCD_RST_HIGH palSetPad(LCD_RST_GPIO, LCD_RST_PIN)
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#define LCD_CS_LOW palClearPad(LCD_CS_GPIO, LCD_CS_PIN)
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#define LCD_CS_HIGH palSetPad(LCD_CS_GPIO, LCD_CS_PIN)
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#define LCD_RS_LOW palClearPad(LCD_RS_GPIO, LCD_RS_PIN)
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#define LCD_RS_HIGH palSetPad(LCD_RS_GPIO, LCD_RS_PIN)
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#define LCD_RD_LOW palClearPad(LCD_RD_GPIO, LCD_RD_PIN)
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#define LCD_RD_HIGH palSetPad(LCD_RD_GPIO, LCD_RD_PIN)
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#define LCD_WR_LOW palClearPad(LCD_WR_GPIO, LCD_WR_PIN)
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#define LCD_WR_HIGH palSetPad(LCD_WR_GPIO, LCD_WR_PIN)
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#define LCD_BL_LOW palClearPad(LCD_BL_GPIO, LCD_BL_PIN)
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#define LCD_BL_HIGH palSetPad(LCD_BL_GPIO, LCD_BL_PIN)
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static uint8_t orientation;
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extern uint16_t lcd_width, lcd_height;
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inline void lld_lcddelay(void)
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{
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asm volatile ("nop");
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asm volatile ("nop");
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}
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inline void lld_lcdwrite(uint16_t db)
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{
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LCD_D4_GPIO->BSRR.W=((~db&0xFFF0)<<16)|(db&0xFFF0);
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LCD_D0_GPIO->BSRR.W=((~db&0x000F)<<16)|(db&0x000F);
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LCD_WR_LOW;
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lld_lcddelay();
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LCD_WR_HIGH;
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}
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static __inline uint16_t lcdReadData(void) {
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uint16_t value=0;
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LCD_RS_HIGH;
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LCD_WR_HIGH;
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LCD_RD_LOW;
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#ifndef STM32F4XX
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// change pin mode to digital input
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LCD_DATA_PORT->CRH = 0x47444444;
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LCD_DATA_PORT->CRL = 0x47444444;
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#else
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#endif
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// value = palReadPort(LCD_DATA_PORT); // dummy
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// value = palReadPort(LCD_DATA_PORT);
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#ifndef STM32F4XX
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// change pin mode back to digital output
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LCD_DATA_PORT->CRH = 0x33333333;
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LCD_DATA_PORT->CRL = 0x33333333;
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#else
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#endif
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LCD_RD_HIGH;
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return value;
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}
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static __inline uint16_t lcdReadReg(uint16_t lcdReg) {
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uint16_t lcdRAM;
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LCD_CS_LOW;
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LCD_RS_LOW;
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lld_lcdwrite(lcdReg);
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LCD_RS_HIGH;
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lcdRAM = lcdReadData();
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LCD_CS_HIGH;
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return lcdRAM;
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}
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void lcdWriteIndex(uint16_t lcdReg) {
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LCD_RS_LOW;
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lld_lcdwrite(lcdReg);
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LCD_RS_HIGH;
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}
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void lcdWriteData(uint16_t lcdData) {
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lld_lcdwrite(lcdData);
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}
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void lcdWriteReg(uint16_t lcdReg, uint16_t lcdRegValue) {
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LCD_CS_LOW;
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LCD_RS_LOW;
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lld_lcdwrite(lcdReg);
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LCD_RS_HIGH;
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lld_lcdwrite(lcdRegValue);
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LCD_CS_HIGH;
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}
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void lld_lcdInit(void) {
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// ChibiOS HAL has a nice and precise delay function,
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// halPolledDelay(US2RTT(x)); or halPolledDelay(MS2RTT(x));
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// Why Not use it?
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// IO Default Configurations
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palSetPadMode(LCD_CS_GPIO, LCD_CS_PIN, PAL_MODE_OUTPUT_PUSHPULL | PAL_STM32_OSPEED_HIGHEST);
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palSetPadMode(LCD_WR_GPIO, LCD_WR_PIN, PAL_MODE_OUTPUT_PUSHPULL | PAL_STM32_OSPEED_HIGHEST);
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palSetPadMode(LCD_RD_GPIO, LCD_RD_PIN, PAL_MODE_OUTPUT_PUSHPULL | PAL_STM32_OSPEED_HIGHEST);
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palSetPadMode(LCD_RST_GPIO, LCD_RST_PIN, PAL_MODE_OUTPUT_PUSHPULL | PAL_STM32_OSPEED_HIGHEST);
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palSetPadMode(LCD_RS_GPIO, LCD_RS_PIN, PAL_MODE_OUTPUT_PUSHPULL | PAL_STM32_OSPEED_HIGHEST);
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palSetPadMode(LCD_BL_GPIO, LCD_BL_PIN, PAL_MODE_OUTPUT_PUSHPULL | PAL_STM32_OSPEED_HIGHEST);
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palSetGroupMode(LCD_D0_GPIO, 0x0000000F, 0, PAL_MODE_OUTPUT_PUSHPULL | PAL_STM32_OSPEED_HIGHEST);
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palSetGroupMode(LCD_D4_GPIO, 0x0000FFF0, 0, PAL_MODE_OUTPUT_PUSHPULL | PAL_STM32_OSPEED_HIGHEST);
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LCD_CS_HIGH;
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LCD_RST_HIGH;
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LCD_RD_HIGH;
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LCD_WR_HIGH;
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LCD_BL_LOW;
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// A Good idea to reset the module before using
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LCD_RST_LOW;
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halPolledDelay(MS2RTT(2));
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LCD_RST_HIGH; // Hardware Reset
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halPolledDelay(MS2RTT(2));
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lcdWriteReg(0x11,0x2004);
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lcdWriteReg(0x13,0xCC00);
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lcdWriteReg(0x15,0x2600);
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lcdWriteReg(0x14,0x252A);
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lcdWriteReg(0x12,0x0033);
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lcdWriteReg(0x13,0xCC04);
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halPolledDelay(MS2RTT(1));
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lcdWriteReg(0x13,0xCC06);
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halPolledDelay(MS2RTT(1));
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lcdWriteReg(0x13,0xCC4F);
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halPolledDelay(MS2RTT(1));
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lcdWriteReg(0x13,0x674F);
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lcdWriteReg(0x11,0x2003);
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halPolledDelay(MS2RTT(1));
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// Gamma Setting
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lcdWriteReg(0x30,0x2609);
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lcdWriteReg(0x31,0x242C);
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lcdWriteReg(0x32,0x1F23);
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lcdWriteReg(0x33,0x2425);
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lcdWriteReg(0x34,0x2226);
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lcdWriteReg(0x35,0x2523);
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lcdWriteReg(0x36,0x1C1A);
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lcdWriteReg(0x37,0x131D);
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lcdWriteReg(0x38,0x0B11);
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lcdWriteReg(0x39,0x1210);
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lcdWriteReg(0x3A,0x1315);
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lcdWriteReg(0x3B,0x3619);
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lcdWriteReg(0x3C,0x0D00);
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lcdWriteReg(0x3D,0x000D);
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lcdWriteReg(0x16,0x0007);
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lcdWriteReg(0x02,0x0013);
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lcdWriteReg(0x03,0x0003);
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lcdWriteReg(0x01,0x0127);
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halPolledDelay(MS2RTT(1));
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lcdWriteReg(0x08,0x0303);
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lcdWriteReg(0x0A,0x000B);
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lcdWriteReg(0x0B,0x0003);
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lcdWriteReg(0x0C,0x0000);
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lcdWriteReg(0x41,0x0000);
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lcdWriteReg(0x50,0x0000);
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lcdWriteReg(0x60,0x0005);
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lcdWriteReg(0x70,0x000B);
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lcdWriteReg(0x71,0x0000);
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lcdWriteReg(0x78,0x0000);
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lcdWriteReg(0x7A,0x0000);
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lcdWriteReg(0x79,0x0007);
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lcdWriteReg(0x07,0x0051);
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halPolledDelay(MS2RTT(1));
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lcdWriteReg(0x07,0x0053);
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lcdWriteReg(0x79,0x0000);
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}
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void lld_lcdSetCursor(uint16_t x, uint16_t y) {
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if(PORTRAIT) {
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lcdWriteReg(0x0020, x);
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lcdWriteReg(0x0021, y);
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} else if(LANDSCAPE) {
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lcdWriteReg(0x0020, y);
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lcdWriteReg(0x0021, x);
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}
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}
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// Do not use now, will be fixed in future
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void lld_lcdSetOrientation(uint8_t newOrientation) {
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orientation = newOrientation;
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switch(orientation) {
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case portrait:
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lcdWriteReg(0x0001, 0x2B3F);
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lcdWriteReg(0x0011, 0x6070);
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lcd_height = SCREEN_HEIGHT;
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lcd_width = SCREEN_WIDTH;
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break;
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case landscape:
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lcdWriteReg(0x0001, 0x293F);
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lcdWriteReg(0x0011, 0x6078);
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lcd_height = SCREEN_WIDTH;
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lcd_width = SCREEN_HEIGHT;
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break;
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case portraitInv:
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lcdWriteReg(0x0001, 0x693F);
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lcdWriteReg(0x0011, 0x6040);
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lcd_height = SCREEN_HEIGHT;
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lcd_width = SCREEN_WIDTH;
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break;
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case landscapeInv:
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lcdWriteReg(0x0001, 0x6B3F);
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lcdWriteReg(0x0011, 0x6048);
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lcd_height = SCREEN_WIDTH;
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lcd_width = SCREEN_HEIGHT;
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break;
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}
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}
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void lld_lcdSetWindow(uint16_t x0, uint16_t y0, uint16_t x1, uint16_t y1) {
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lld_lcdSetCursor(x0, y0);
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switch(lcdGetOrientation()) {
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case portrait:
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lcdWriteReg(0x47, ((x0+x1-1) << 8) | x0);
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lcdWriteReg(0x48, y0);
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lcdWriteReg(0x47, y0+y1-1);
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break;
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case landscape:
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lcdWriteReg(0x47, ((y0+y1-1) << 8) | y1);
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lcdWriteReg(0x48, x0);
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lcdWriteReg(0x47, x0+x1-1);
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break;
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case portraitInv:
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lcdWriteReg(0x47, ((x0+x1-1) << 8) | x0);
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lcdWriteReg(0x48, y0);
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lcdWriteReg(0x47, y0+y1-1);
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break;
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case landscapeInv:
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lcdWriteReg(0x47, ((y0+y1-1) << 8) | y1);
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lcdWriteReg(0x48, x0);
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lcdWriteReg(0x47, x0+x1-1);
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break;
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}
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}
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void lld_lcdClear(uint16_t color) {
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uint32_t index = 0;
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lld_lcdSetCursor(0,0);
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LCD_CS_LOW;
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lcdWriteIndex(0x0022);
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for(index = 0; index < SCREEN_WIDTH * SCREEN_HEIGHT; index++)
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lcdWriteData(color);
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LCD_CS_HIGH;
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}
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// Do not use!
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uint16_t lld_lcdGetPixelColor(uint16_t x, uint16_t y) {
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uint16_t dummy;
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lld_lcdSetCursor(x,y);
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LCD_CS_LOW;
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lcdWriteIndex(0x0022);
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dummy = lcdReadData();
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dummy = lcdReadData();
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LCD_CS_HIGH;
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return dummy;
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}
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void lld_lcdDrawPixel(uint16_t x, uint16_t y, uint16_t color) {
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lld_lcdSetCursor(x, y);
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lcdWriteReg(0x0022, color);
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}
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uint16_t lld_lcdGetOrientation(void) {
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return orientation;
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}
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uint16_t lld_lcdGetHeight(void) {
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return lcd_height;
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}
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uint16_t lld_lcdGetWidth(void) {
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return lcd_width;
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}
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#endif
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