diff options
Diffstat (limited to 'F2024/coe718/labs/lab2/bitbanding/GLCD_SPI_LPC1700.c')
| -rwxr-xr-x | F2024/coe718/labs/lab2/bitbanding/GLCD_SPI_LPC1700.c | 928 |
1 files changed, 928 insertions, 0 deletions
diff --git a/F2024/coe718/labs/lab2/bitbanding/GLCD_SPI_LPC1700.c b/F2024/coe718/labs/lab2/bitbanding/GLCD_SPI_LPC1700.c new file mode 100755 index 0000000..5037c8e --- /dev/null +++ b/F2024/coe718/labs/lab2/bitbanding/GLCD_SPI_LPC1700.c @@ -0,0 +1,928 @@ +/******************************************************************************/ +/* GLCD_SPI_LPC1700.c: LPC1700 low level Graphic LCD (240x320 pixels) driven */ +/* with SPI functions */ +/******************************************************************************/ +/* This file is part of the uVision/ARM development tools. */ +/* Copyright (c) 2005-2011 Keil - An ARM Company. All rights reserved. */ +/* This software may only be used under the terms of a valid, current, */ +/* end user licence from KEIL for a compatible version of KEIL software */ +/* development tools. Nothing else gives you the right to use this software. */ +/******************************************************************************/ + + +#include <lpc17xx.h> +#include "GLCD.h" +#include "Font_6x8_h.h" +#include "Font_16x24_h.h" + +/************************** Orientation configuration ************************/ + +#define LANDSCAPE 1 /* 1 for landscape, 0 for portrait */ +#define ROTATE180 0 /* 1 to rotate the screen for 180 deg */ + +/*********************** Hardware specific configuration **********************/ + +/* SPI Interface: SPI3 + + PINS: + - CS = P0.6 (GPIO pin) + - RS = GND + - WR/SCK = P0.7 (SCK1) + - RD = GND + - SDO = P0.8 (MISO1) + - SDI = P0.9 (MOSI1) */ + +#define PIN_CS (1 << 6) +#define PIN_CLK (1 << 7) +#define PIN_DAT (1 << 9) + +#define IN 0x00 +#define OUT 0x01 + +/* SPI_SR - bit definitions */ +#define TFE 0x01 +#define RNE 0x04 +#define BSY 0x10 + +/*------------------------- Speed dependant settings -------------------------*/ + +/* If processor works on high frequency delay has to be increased, it can be + increased by factor 2^N by this constant */ +#define DELAY_2N 18 + +/*---------------------- Graphic LCD size definitions ------------------------*/ + +#if (LANDSCAPE == 1) +#define WIDTH 320 /* Screen Width (in pixels) */ +#define HEIGHT 240 /* Screen Hight (in pixels) */ +#else +#define WIDTH 240 /* Screen Width (in pixels) */ +#define HEIGHT 320 /* Screen Hight (in pixels) */ +#endif +#define BPP 16 /* Bits per pixel */ +#define BYPP ((BPP+7)/8) /* Bytes per pixel */ + +/*--------------- Graphic LCD interface hardware definitions -----------------*/ + +/* Pin CS setting to 0 or 1 */ +#define LCD_CS(x) ((x) ? (LPC_GPIO0->FIOSET = PIN_CS) : (LPC_GPIO0->FIOCLR = PIN_CS)) +#define LCD_CLK(x) ((x) ? (LPC_GPIO0->FIOSET = PIN_CLK) : (LPC_GPIO0->FIOCLR = PIN_CLK)) +#define LCD_DAT(x) ((x) ? (LPC_GPIO0->FIOSET = PIN_DAT) : (LPC_GPIO0->FIOCLR = PIN_DAT)) + +#define DAT_MODE(x) ((x == OUT) ? (LPC_GPIO0->FIODIR |= PIN_DAT) : (LPC_GPIO0->FIODIR &= ~PIN_DAT)) +#define BUS_VAL() ((LPC_GPIO0->FIOPIN & PIN_DAT) != 0) + + +#define SPI_START (0x70) /* Start byte for SPI transfer */ +#define SPI_RD (0x01) /* WR bit 1 within start */ +#define SPI_WR (0x00) /* WR bit 0 within start */ +#define SPI_DATA (0x02) /* RS bit 1 within start byte */ +#define SPI_INDEX (0x00) /* RS bit 0 within start byte */ + +#define BG_COLOR 0 /* Background color */ +#define TXT_COLOR 1 /* Text color */ + + +/*---------------------------- Global variables ------------------------------*/ + +/******************************************************************************/ +static volatile unsigned short Color[2] = {White, Black}; +static unsigned char Himax; + +/************************ Local auxiliary functions ***************************/ + +/******************************************************************************* +* Delay in while loop cycles * +* Parameter: cnt: number of while cycles to delay * +* Return: * +*******************************************************************************/ + +static void delay (int cnt) { + cnt <<= DELAY_2N; + while (cnt--); +} + + +/******************************************************************************* +* Transfer 1 byte over the serial communication * +* Parameter: byte: byte to be sent * +* mode: OUT = transmit byte, IN = receive byte * +* Return: byte read while sending * +*******************************************************************************/ +static unsigned char spi_tran_man (unsigned char byte, unsigned int mode) { + unsigned char val = 0; + int i; + + if (mode == OUT) { DAT_MODE (OUT); } + else { DAT_MODE (IN); } + + for (i = 7; i >= 0; i--) { + LCD_CLK(0); + delay(1); + if (mode == OUT) { + LCD_DAT((byte & (1 << i)) != 0); + } + else { + val |= (BUS_VAL() << i); + } + LCD_CLK(1); + delay(1); + } + return (val); +} + + +/******************************************************************************* +* Transfer 1 byte over the serial communication * +* Parameter: byte: byte to be sent * +* Return: byte read while sending * +*******************************************************************************/ + +static __inline unsigned char spi_tran (unsigned char byte) { + + LPC_SSP1->DR = byte; + while (!(LPC_SSP1->SR & RNE)); /* Wait for send to finish */ + return (LPC_SSP1->DR); +} + + +/******************************************************************************* +* Write a command the LCD controller * +* Parameter: cmd: command to be written * +* Return: * +*******************************************************************************/ + +static __inline void wr_cmd (unsigned char cmd) { + LCD_CS(0); + spi_tran(SPI_START | SPI_WR | SPI_INDEX); /* Write : RS = 0, RW = 0 */ + spi_tran(0); + spi_tran(cmd); + LCD_CS(1); +} + + +/******************************************************************************* +* Write data to the LCD controller * +* Parameter: dat: data to be written * +* Return: * +*******************************************************************************/ + +static __inline void wr_dat (unsigned short dat) { + LCD_CS(0); + spi_tran(SPI_START | SPI_WR | SPI_DATA); /* Write : RS = 1, RW = 0 */ + spi_tran((dat >> 8)); /* Write D8..D15 */ + spi_tran((dat & 0xFF)); /* Write D0..D7 */ + LCD_CS(1); +} + + +/******************************************************************************* +* Start of data writing to the LCD controller * +* Parameter: * +* Return: * +*******************************************************************************/ + +static __inline void wr_dat_start (void) { + LCD_CS(0); + spi_tran(SPI_START | SPI_WR | SPI_DATA); /* Write : RS = 1, RW = 0 */ +} + + +/******************************************************************************* +* Stop of data writing to the LCD controller * +* Parameter: * +* Return: * +*******************************************************************************/ + +static __inline void wr_dat_stop (void) { + + LCD_CS(1); +} + + +/******************************************************************************* +* Data writing to the LCD controller * +* Parameter: dat: data to be written * +* Return: * +*******************************************************************************/ + +static __inline void wr_dat_only (unsigned short dat) { + + spi_tran((dat >> 8)); /* Write D8..D15 */ + spi_tran((dat & 0xFF)); /* Write D0..D7 */ +} + + +/******************************************************************************* +* Read data from the LCD controller * +* Parameter: * +* Return: read data * +*******************************************************************************/ + +static __inline unsigned short rd_dat (void) { + unsigned short val = 0; + + LCD_CS(0); + spi_tran(SPI_START | SPI_RD | SPI_DATA); /* Read: RS = 1, RW = 1 */ + spi_tran(0); /* Dummy read 1 */ + val = spi_tran(0); /* Read D8..D15 */ + val <<= 8; + val |= spi_tran(0); /* Read D0..D7 */ + LCD_CS(1); + return (val); +} + + +/******************************************************************************* +* Write a value to the to LCD register * +* Parameter: reg: register to be written * +* val: value to write to the register * +*******************************************************************************/ + +static __inline void wr_reg (unsigned char reg, unsigned short val) { + + wr_cmd(reg); + wr_dat(val); +} + + +/******************************************************************************* +* Read from the LCD register * +* Parameter: reg: register to be read * +* Return: value read from the register * +*******************************************************************************/ + +static unsigned short rd_reg (unsigned char reg) { + + wr_cmd(reg); + return(rd_dat()); +} + + +/******************************************************************************* +* Read LCD controller ID (Himax GLCD) * +* Parameter: (none) * +* Return: controller ID * +*******************************************************************************/ + +static unsigned short rd_id_man (void) { + unsigned short val; + + /* Set MOSI, MISO and SCK as GPIO pins, with pull-down/pull-up disabled */ + LPC_PINCON->PINSEL0 &= ~((3 << 18) | (3 << 16) | (3 << 14)); + LPC_PINCON->PINMODE0 |= 0x000AA000; + LPC_GPIO0->FIODIR |= PIN_CLK; /* SCK pin is GPIO output */ + LCD_CS (1); /* Set chip select high */ + LCD_CLK(1); /* Set clock high */ + + LCD_CS(0); + spi_tran_man (SPI_START | SPI_WR | SPI_INDEX, OUT); + spi_tran_man (0x00, OUT); + LCD_CS(1); + + LCD_CS(0); + spi_tran_man (SPI_START | SPI_RD | SPI_DATA, OUT); + val = spi_tran_man(0, IN); + LCD_CS(1); + + /* Connect MOSI, MISO, and SCK to SSP peripheral */ + LPC_GPIO0->FIODIR &= ~PIN_CLK; + LPC_PINCON->PINSEL0 |= (2 << 18) | (2 << 16) | (2 << 14); + LPC_PINCON->PINMODE0 &= ~0x000FF000; + + return (val); +} + + +/************************ Exported functions **********************************/ + +/******************************************************************************* +* Initialize the Graphic LCD controller * +* Parameter: * +* Return: * +*******************************************************************************/ + +void GLCD_Init (void) { + unsigned short driverCode; + + /* Enable clock for SSP1, clock = CCLK / 2 */ + LPC_SC->PCONP |= 0x00000400; + LPC_SC->PCLKSEL0 |= 0x00200000; + + /* Configure the LCD Control pins */ + LPC_PINCON->PINSEL9 &= 0xF0FFFFFF; + LPC_GPIO4->FIODIR |= 0x30000000; + LPC_GPIO4->FIOSET = 0x20000000; + + /* SSEL1 is GPIO output set to high */ + LPC_GPIO0->FIODIR |= 0x00000040; + LPC_GPIO0->FIOSET = 0x00000040; + LPC_PINCON->PINSEL0 &= 0xFFF03FFF; + LPC_PINCON->PINSEL0 |= 0x000A8000; + + /* Enable SPI in Master Mode, CPOL=1, CPHA=1 */ + /* Max. 12.5 MBit used for Data Transfer @ 100MHz */ + LPC_SSP1->CR0 = 0x01C7; + LPC_SSP1->CPSR = 0x02; + LPC_SSP1->CR1 = 0x02; + + driverCode = rd_id_man (); + if (driverCode == 0) { + driverCode = rd_reg(0x00); + } + + if (driverCode == 0x47) { /* LCD with HX8347-D LCD Controller */ + Himax = 1; /* Set Himax LCD controller flag */ + /* Driving ability settings ----------------------------------------------*/ + wr_reg(0xEA, 0x00); /* Power control internal used (1) */ + wr_reg(0xEB, 0x20); /* Power control internal used (2) */ + wr_reg(0xEC, 0x0C); /* Source control internal used (1) */ + wr_reg(0xED, 0xC7); /* Source control internal used (2) */ + wr_reg(0xE8, 0x38); /* Source output period Normal mode */ + wr_reg(0xE9, 0x10); /* Source output period Idle mode */ + wr_reg(0xF1, 0x01); /* RGB 18-bit interface ;0x0110 */ + wr_reg(0xF2, 0x10); + + /* Adjust the Gamma Curve ------------------------------------------------*/ + wr_reg(0x40, 0x01); + wr_reg(0x41, 0x00); + wr_reg(0x42, 0x00); + wr_reg(0x43, 0x10); + wr_reg(0x44, 0x0E); + wr_reg(0x45, 0x24); + wr_reg(0x46, 0x04); + wr_reg(0x47, 0x50); + wr_reg(0x48, 0x02); + wr_reg(0x49, 0x13); + wr_reg(0x4A, 0x19); + wr_reg(0x4B, 0x19); + wr_reg(0x4C, 0x16); + + wr_reg(0x50, 0x1B); + wr_reg(0x51, 0x31); + wr_reg(0x52, 0x2F); + wr_reg(0x53, 0x3F); + wr_reg(0x54, 0x3F); + wr_reg(0x55, 0x3E); + wr_reg(0x56, 0x2F); + wr_reg(0x57, 0x7B); + wr_reg(0x58, 0x09); + wr_reg(0x59, 0x06); + wr_reg(0x5A, 0x06); + wr_reg(0x5B, 0x0C); + wr_reg(0x5C, 0x1D); + wr_reg(0x5D, 0xCC); + + /* Power voltage setting -------------------------------------------------*/ + wr_reg(0x1B, 0x1B); + wr_reg(0x1A, 0x01); + wr_reg(0x24, 0x2F); + wr_reg(0x25, 0x57); + wr_reg(0x23, 0x88); + + /* Power on setting ------------------------------------------------------*/ + wr_reg(0x18, 0x36); /* Internal oscillator frequency adj */ + wr_reg(0x19, 0x01); /* Enable internal oscillator */ + wr_reg(0x01, 0x00); /* Normal mode, no scrool */ + wr_reg(0x1F, 0x88); /* Power control 6 - DDVDH Off */ + delay(20); + wr_reg(0x1F, 0x82); /* Power control 6 - Step-up: 3 x VCI */ + delay(5); + wr_reg(0x1F, 0x92); /* Power control 6 - Step-up: On */ + delay(5); + wr_reg(0x1F, 0xD2); /* Power control 6 - VCOML active */ + delay(5); + + /* Color selection -------------------------------------------------------*/ + wr_reg(0x17, 0x55); /* RGB, System interface: 16 Bit/Pixel*/ + wr_reg(0x00, 0x00); /* Scrolling off, no standby */ + + /* Interface config ------------------------------------------------------*/ + wr_reg(0x2F, 0x11); /* LCD Drive: 1-line inversion */ + wr_reg(0x31, 0x00); + wr_reg(0x32, 0x00); /* DPL=0, HSPL=0, VSPL=0, EPL=0 */ + + /* Display on setting ----------------------------------------------------*/ + wr_reg(0x28, 0x38); /* PT(0,0) active, VGL/VGL */ + delay(20); + wr_reg(0x28, 0x3C); /* Display active, VGL/VGL */ + + #if (LANDSCAPE == 1) + #if (ROTATE180 == 0) + wr_reg (0x16, 0xA8); + #else + wr_reg (0x16, 0x68); + #endif + #else + #if (ROTATE180 == 0) + wr_reg (0x16, 0x08); + #else + wr_reg (0x16, 0xC8); + #endif + #endif + + /* Display scrolling settings --------------------------------------------*/ + wr_reg(0x0E, 0x00); /* TFA MSB */ + wr_reg(0x0F, 0x00); /* TFA LSB */ + wr_reg(0x10, 320 >> 8); /* VSA MSB */ + wr_reg(0x11, 320 & 0xFF); /* VSA LSB */ + wr_reg(0x12, 0x00); /* BFA MSB */ + wr_reg(0x13, 0x00); /* BFA LSB */ + } + else { + Himax = 0; /* This is not Himax LCD controller */ + /* Start Initial Sequence ------------------------------------------------*/ + #if (ROTATE180 == 1) + wr_reg(0x01, 0x0000); /* Clear SS bit */ + #else + wr_reg(0x01, 0x0100); /* Set SS bit */ + #endif + wr_reg(0x02, 0x0700); /* Set 1 line inversion */ + wr_reg(0x04, 0x0000); /* Resize register */ + wr_reg(0x08, 0x0207); /* 2 lines front, 7 back porch */ + wr_reg(0x09, 0x0000); /* Set non-disp area refresh cyc ISC */ + wr_reg(0x0A, 0x0000); /* FMARK function */ + wr_reg(0x0C, 0x0000); /* RGB interface setting */ + wr_reg(0x0D, 0x0000); /* Frame marker Position */ + wr_reg(0x0F, 0x0000); /* RGB interface polarity */ + + /* Power On sequence -----------------------------------------------------*/ + wr_reg(0x10, 0x0000); /* Reset Power Control 1 */ + wr_reg(0x11, 0x0000); /* Reset Power Control 2 */ + wr_reg(0x12, 0x0000); /* Reset Power Control 3 */ + wr_reg(0x13, 0x0000); /* Reset Power Control 4 */ + delay(20); /* Discharge cap power voltage (200ms)*/ + wr_reg(0x10, 0x12B0); /* SAP, BT[3:0], AP, DSTB, SLP, STB */ + wr_reg(0x11, 0x0007); /* DC1[2:0], DC0[2:0], VC[2:0] */ + delay(5); /* Delay 50 ms */ + wr_reg(0x12, 0x01BD); /* VREG1OUT voltage */ + delay(5); /* Delay 50 ms */ + wr_reg(0x13, 0x1400); /* VDV[4:0] for VCOM amplitude */ + wr_reg(0x29, 0x000E); /* VCM[4:0] for VCOMH */ + delay(5); /* Delay 50 ms */ + wr_reg(0x20, 0x0000); /* GRAM horizontal Address */ + wr_reg(0x21, 0x0000); /* GRAM Vertical Address */ + + /* Adjust the Gamma Curve ------------------------------------------------*/ + switch (driverCode) { + case 0x5408: /* LCD with SPFD5408 LCD Controller */ + wr_reg(0x30, 0x0B0D); + wr_reg(0x31, 0x1923); + wr_reg(0x32, 0x1C26); + wr_reg(0x33, 0x261C); + wr_reg(0x34, 0x2419); + wr_reg(0x35, 0x0D0B); + wr_reg(0x36, 0x1006); + wr_reg(0x37, 0x0610); + wr_reg(0x38, 0x0706); + wr_reg(0x39, 0x0304); + wr_reg(0x3A, 0x0E05); + wr_reg(0x3B, 0x0E01); + wr_reg(0x3C, 0x010E); + wr_reg(0x3D, 0x050E); + wr_reg(0x3E, 0x0403); + wr_reg(0x3F, 0x0607); + break; + + case 0x9325: /* LCD with RM68050 LCD Controller */ + wr_reg(0x0030,0x0000); + wr_reg(0x0031,0x0607); + wr_reg(0x0032,0x0305); + wr_reg(0x0035,0x0000); + wr_reg(0x0036,0x1604); + wr_reg(0x0037,0x0204); + wr_reg(0x0038,0x0001); + wr_reg(0x0039,0x0707); + wr_reg(0x003C,0x0000); + wr_reg(0x003D,0x000F); + break; + + case 0x9320: /* LCD with ILI9320 LCD Controller */ + default: /* LCD with other LCD Controller */ + wr_reg(0x30, 0x0006); + wr_reg(0x31, 0x0101); + wr_reg(0x32, 0x0003); + wr_reg(0x35, 0x0106); + wr_reg(0x36, 0x0B02); + wr_reg(0x37, 0x0302); + wr_reg(0x38, 0x0707); + wr_reg(0x39, 0x0007); + wr_reg(0x3C, 0x0600); + wr_reg(0x3D, 0x020B); + break; + } + + /* Set GRAM area ---------------------------------------------------------*/ + wr_reg(0x50, 0x0000); /* Horizontal GRAM Start Address */ + wr_reg(0x51, (HEIGHT-1)); /* Horizontal GRAM End Address */ + wr_reg(0x52, 0x0000); /* Vertical GRAM Start Address */ + wr_reg(0x53, (WIDTH-1)); /* Vertical GRAM End Address */ + + /* Set Gate Scan Line ----------------------------------------------------*/ + switch (driverCode) { + case 0x5408: /* LCD with SPFD5408 LCD Controller */ + case 0x9325: /* LCD with RM68050 LCD Controller */ + #if (LANDSCAPE ^ ROTATE180) + wr_reg(0x60, 0x2700); + #else + wr_reg(0x60, 0xA700); + #endif + break; + + case 0x9320: /* LCD with ILI9320 LCD Controller */ + default: /* LCD with other LCD Controller */ + #if (LANDSCAPE ^ ROTATE180) + wr_reg(0x60, 0xA700); + #else + wr_reg(0x60, 0x2700); + #endif + break; + } + wr_reg(0x61, 0x0001); /* NDL,VLE, REV */ + wr_reg(0x6A, 0x0000); /* Set scrolling line */ + + /* Partial Display Control -----------------------------------------------*/ + wr_reg(0x80, 0x0000); + wr_reg(0x81, 0x0000); + wr_reg(0x82, 0x0000); + wr_reg(0x83, 0x0000); + wr_reg(0x84, 0x0000); + wr_reg(0x85, 0x0000); + + /* Panel Control ---------------------------------------------------------*/ + wr_reg(0x90, 0x0010); + wr_reg(0x92, 0x0000); + wr_reg(0x93, 0x0003); + wr_reg(0x95, 0x0110); + wr_reg(0x97, 0x0000); + wr_reg(0x98, 0x0000); + + /* Set GRAM write direction + I/D=11 (Horizontal : increment, Vertical : increment) */ + #if (LANDSCAPE == 1) + /* AM=1 (address is updated in vertical writing direction) */ + wr_reg(0x03, 0x1038); + #else + /* AM=0 (address is updated in horizontal writing direction) */ + wr_reg(0x03, 0x1030); + #endif + + wr_reg(0x07, 0x0137); /* 262K color and display ON */ + } + LPC_GPIO4->FIOSET = 0x10000000; +} + + +/******************************************************************************* +* Set draw window region * +* Parameter: x: horizontal position * +* y: vertical position * +* w: window width in pixel * +* h: window height in pixels * +* Return: * +*******************************************************************************/ + +void GLCD_SetWindow (unsigned int x, unsigned int y, unsigned int w, unsigned int h) { + unsigned int xe, ye; + + if (Himax) { + xe = x+w-1; + ye = y+h-1; + + wr_reg(0x02, x >> 8); /* Column address start MSB */ + wr_reg(0x03, x & 0xFF); /* Column address start LSB */ + wr_reg(0x04, xe >> 8); /* Column address end MSB */ + wr_reg(0x05, xe & 0xFF); /* Column address end LSB */ + + wr_reg(0x06, y >> 8); /* Row address start MSB */ + wr_reg(0x07, y & 0xFF); /* Row address start LSB */ + wr_reg(0x08, ye >> 8); /* Row address end MSB */ + wr_reg(0x09, ye & 0xFF); /* Row address end LSB */ + } + else { + #if (LANDSCAPE == 1) + wr_reg(0x50, y); /* Vertical GRAM Start Address */ + wr_reg(0x51, y+h-1); /* Vertical GRAM End Address (-1) */ + wr_reg(0x52, x); /* Horizontal GRAM Start Address */ + wr_reg(0x53, x+w-1); /* Horizontal GRAM End Address (-1) */ + wr_reg(0x20, y); + wr_reg(0x21, x); + #else + wr_reg(0x50, x); /* Horizontal GRAM Start Address */ + wr_reg(0x51, x+w-1); /* Horizontal GRAM End Address (-1) */ + wr_reg(0x52, y); /* Vertical GRAM Start Address */ + wr_reg(0x53, y+h-1); /* Vertical GRAM End Address (-1) */ + wr_reg(0x20, x); + wr_reg(0x21, y); + #endif + } +} + + +/******************************************************************************* +* Set draw window region to whole screen * +* Parameter: * +* Return: * +*******************************************************************************/ + +void GLCD_WindowMax (void) { + GLCD_SetWindow (0, 0, WIDTH, HEIGHT); +} + + +/******************************************************************************* +* Draw a pixel in foreground color * +* Parameter: x: horizontal position * +* y: vertical position * +* Return: * +*******************************************************************************/ + +void GLCD_PutPixel (unsigned int x, unsigned int y) { + + if (Himax) { + wr_reg(0x02, x >> 8); /* Column address start MSB */ + wr_reg(0x03, x & 0xFF); /* Column address start LSB */ + wr_reg(0x04, x >> 8); /* Column address end MSB */ + wr_reg(0x05, x & 0xFF); /* Column address end LSB */ + + wr_reg(0x06, y >> 8); /* Row address start MSB */ + wr_reg(0x07, y & 0xFF); /* Row address start LSB */ + wr_reg(0x08, y >> 8); /* Row address end MSB */ + wr_reg(0x09, y & 0xFF); /* Row address end LSB */ + } + else { + #if (LANDSCAPE == 1) + wr_reg(0x20, y); + wr_reg(0x21, x); + #else + wr_reg(0x20, x); + wr_reg(0x21, y); + #endif + } + + wr_cmd(0x22); + wr_dat(Color[TXT_COLOR]); +} + + +/******************************************************************************* +* Set foreground color * +* Parameter: color: foreground color * +* Return: * +*******************************************************************************/ + +void GLCD_SetTextColor (unsigned short color) { + + Color[TXT_COLOR] = color; +} + + +/******************************************************************************* +* Set background color * +* Parameter: color: background color * +* Return: * +*******************************************************************************/ + +void GLCD_SetBackColor (unsigned short color) { + + Color[BG_COLOR] = color; +} + + +/******************************************************************************* +* Clear display * +* Parameter: color: display clearing color * +* Return: * +*******************************************************************************/ + +void GLCD_Clear (unsigned short color) { + unsigned int i; + + GLCD_WindowMax(); + wr_cmd(0x22); + wr_dat_start(); + + for(i = 0; i < (WIDTH*HEIGHT); i++) + wr_dat_only(color); + wr_dat_stop(); +} + + +/******************************************************************************* +* Draw character on given position * +* Parameter: x: horizontal position * +* y: vertical position * +* cw: character width in pixel * +* ch: character height in pixels * +* c: pointer to character bitmap * +* Return: * +*******************************************************************************/ + +void GLCD_DrawChar (unsigned int x, unsigned int y, unsigned int cw, unsigned int ch, unsigned char *c) { + unsigned int i, j, k, pixs; + + GLCD_SetWindow(x, y, cw, ch); + + wr_cmd(0x22); + wr_dat_start(); + + k = (cw + 7)/8; + + if (k == 1) { + for (j = 0; j < ch; j++) { + pixs = *(unsigned char *)c; + c += 1; + + for (i = 0; i < cw; i++) { + wr_dat_only (Color[(pixs >> i) & 1]); + } + } + } + else if (k == 2) { + for (j = 0; j < ch; j++) { + pixs = *(unsigned short *)c; + c += 2; + + for (i = 0; i < cw; i++) { + wr_dat_only (Color[(pixs >> i) & 1]); + } + } + } + wr_dat_stop(); +} + + +/******************************************************************************* +* Disply character on given line * +* Parameter: ln: line number * +* col: column number * +* fi: font index (0 = 6x8, 1 = 16x24) * +* c: ascii character * +* Return: * +*******************************************************************************/ + +void GLCD_DisplayChar (unsigned int ln, unsigned int col, unsigned char fi, unsigned char c) { + + c -= 32; + switch (fi) { + case 0: /* Font 6 x 8 */ + GLCD_DrawChar(col * 6, ln * 8, 6, 8, (unsigned char *)&Font_6x8_h [c * 8]); + break; + case 1: /* Font 16 x 24 */ + GLCD_DrawChar(col * 16, ln * 24, 16, 24, (unsigned char *)&Font_16x24_h[c * 24]); + break; + } +} + + +/******************************************************************************* +* Disply string on given line * +* Parameter: ln: line number * +* col: column number * +* fi: font index (0 = 6x8, 1 = 16x24) * +* s: pointer to string * +* Return: * +*******************************************************************************/ + +void GLCD_DisplayString (unsigned int ln, unsigned int col, unsigned char fi, unsigned char *s) { + + while (*s) { + GLCD_DisplayChar(ln, col++, fi, *s++); + } +} + + +/******************************************************************************* +* Clear given line * +* Parameter: ln: line number * +* fi: font index (0 = 6x8, 1 = 16x24) * +* Return: * +*******************************************************************************/ + +void GLCD_ClearLn (unsigned int ln, unsigned char fi) { + unsigned char i; + unsigned char buf[60]; + + GLCD_WindowMax(); + switch (fi) { + case 0: /* Font 6 x 8 */ + for (i = 0; i < (WIDTH+5)/6; i++) + buf[i] = ' '; + buf[i+1] = 0; + break; + case 1: /* Font 16 x 24 */ + for (i = 0; i < (WIDTH+15)/16; i++) + buf[i] = ' '; + buf[i+1] = 0; + break; + } + GLCD_DisplayString (ln, 0, fi, buf); +} + +/******************************************************************************* +* Draw bargraph * +* Parameter: x: horizontal position * +* y: vertical position * +* w: maximum width of bargraph (in pixels) * +* h: bargraph height * +* val: value of active bargraph (in 1/1024) * +* Return: * +*******************************************************************************/ + +void GLCD_Bargraph (unsigned int x, unsigned int y, unsigned int w, unsigned int h, unsigned int val) { + int i,j; + + val = (val * w) >> 10; /* Scale value */ + GLCD_SetWindow(x, y, w, h); + wr_cmd(0x22); + wr_dat_start(); + for (i = 0; i < h; i++) { + for (j = 0; j <= w-1; j++) { + if(j >= val) { + wr_dat_only(Color[BG_COLOR]); + } else { + wr_dat_only(Color[TXT_COLOR]); + } + } + } + wr_dat_stop(); +} + + +/******************************************************************************* +* Display graphical bitmap image at position x horizontally and y vertically * +* (This function is optimized for 16 bits per pixel format, it has to be * +* adapted for any other bits per pixel format) * +* Parameter: x: horizontal position * +* y: vertical position * +* w: width of bitmap * +* h: height of bitmap * +* bitmap: address at which the bitmap data resides * +* Return: * +*******************************************************************************/ + +void GLCD_Bitmap (unsigned int x, unsigned int y, unsigned int w, unsigned int h, unsigned char *bitmap) { + int i, j; + unsigned short *bitmap_ptr = (unsigned short *)bitmap; + + GLCD_SetWindow (x, y, w, h); + + wr_cmd(0x22); + wr_dat_start(); + for (i = (h-1)*w; i > -1; i -= w) { + for (j = 0; j < w; j++) { + wr_dat_only (bitmap_ptr[i+j]); + } + } + wr_dat_stop(); +} + + + +/******************************************************************************* +* Scroll content of the whole display for dy pixels vertically * +* Parameter: dy: number of pixels for vertical scroll * +* Return: * +*******************************************************************************/ + +void GLCD_ScrollVertical (unsigned int dy) { +#if (LANDSCAPE == 0) + static unsigned int y = 0; + + y = y + dy; + while (y >= HEIGHT) + y -= HEIGHT; + + if (Himax) { + wr_reg(0x01, 0x08); + wr_reg(0x14, y>>8); /* VSP MSB */ + wr_reg(0x15, y&0xFF); /* VSP LSB */ + } + else { + wr_reg(0x6A, y); + wr_reg(0x61, 3); + } +#endif +} + + +/******************************************************************************* +* Write a command to the LCD controller * +* Parameter: cmd: command to write to the LCD * +* Return: * +*******************************************************************************/ +void GLCD_WrCmd (unsigned char cmd) { + wr_cmd (cmd); +} + + +/******************************************************************************* +* Write a value into LCD controller register * +* Parameter: reg: lcd register address * +* val: value to write into reg * +* Return: * +*******************************************************************************/ +void GLCD_WrReg (unsigned char reg, unsigned short val) { + wr_reg (reg, val); +} +/******************************************************************************/ |