Update lcd.c
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lcd.c
247
lcd.c
@ -37,8 +37,11 @@
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* first dev-version only for I2C-Connection
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* at ATMega328P like Arduino Uno
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*
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* at GRAPHICMODE lib needs SRAM for display
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* at GRAPHICMODE lib needs static SRAM for display:
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* DISPLAY-WIDTH * DISPLAY-HEIGHT + 2 bytes
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*
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* at TEXTMODE lib need static SRAM for display:
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* 2 bytes (cursorPosition)
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*/
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#include "lcd.h"
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@ -52,7 +55,6 @@ static struct {
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#if defined GRAPHICMODE
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#include <stdlib.h>
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static uint8_t displayBuffer[DISPLAYSIZE];
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uint16_t actualIndex = 0;
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#endif
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@ -112,6 +114,44 @@ void lcd_init(uint8_t dispAttr){
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lcd_command(commandSequence, sizeof(commandSequence));
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lcd_clrscr();
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}
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void lcd_gotoxy(uint8_t x, uint8_t y){
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if( x > (DISPLAY_WIDTH/sizeof(FONT[0])) || y > (DISPLAY_HEIGHT/8-1)) return;// out of display
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cursorPosition.x=x;
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cursorPosition.y=y;
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x = x * sizeof(FONT[0]);
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#if defined SSD1306
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uint8_t commandSequence[] = {0xb0+y, 0x21, x, 0x7f};
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#elif defined SH1106
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uint8_t commandSequence[] = {0xb0+y, 0x21, 0x00+((2+x) & (0x0f)), 0x10+( ((2+x) & (0xf0)) >> 4 ), 0x7f};
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#endif
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lcd_command(commandSequence, sizeof(commandSequence));
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}
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void lcd_clrscr(void){
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#ifdef GRAPHICMODE
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memset(displayBuffer, 0x00, sizeof(displayBuffer));
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#if defined SSD1306
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lcd_data(displayBuffer, sizeof(displayBuffer));
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#elif defined SH1106
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for (uint8_t i=0; i <= DISPLAY_HEIGHT/8; i++) {
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uint8_t actualLine[DISPLAY_WIDTH];
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for (uint8_t j=0; j< DISPLAY_WIDTH; j++) {
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actualLine[j]=displayBuffer[i*DISPLAY_WIDTH+j];
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}
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lcd_data(actualLine, sizeof(actualLine));
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lcd_gotoxy(0, i);
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}
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#endif
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#elif defined TEXTMODE
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uint8_t clearLine[DISPLAY_WIDTH];
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memset(clearLine, 0x00, DISPLAY_WIDTH);
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for (uint8_t j = 0; j < DISPLAY_HEIGHT/8; j++){
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lcd_gotoxy(0,j);
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lcd_data(clearLine, sizeof(clearLine));
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}
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lcd_home();
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#endif
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lcd_home();
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}
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void lcd_home(void){
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lcd_gotoxy(0, 0);
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}
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@ -129,6 +169,59 @@ void lcd_set_contrast(uint8_t contrast){
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uint8_t commandSequence[2] = {0x81, contrast};
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lcd_command(commandSequence, sizeof(commandSequence));
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}
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void lcd_putc(char c){
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switch (c) {
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case '\b':
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// backspace
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lcd_gotoxy(cursorPosition.x-1, cursorPosition.y);
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lcd_putc(' ');
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lcd_gotoxy(cursorPosition.x-1, cursorPosition.y);
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break;
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case '\t':
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// tab
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if( (cursorPosition.x+4) < (DISPLAY_WIDTH/ sizeof(FONT[0])-4) ){
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lcd_gotoxy(cursorPosition.x+4, cursorPosition.y);
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}else{
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lcd_gotoxy(DISPLAY_WIDTH/ sizeof(FONT[0]), cursorPosition.y);
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}
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break;
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case '\n':
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// linefeed
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if(cursorPosition.y < (DISPLAY_HEIGHT/8-1)){
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lcd_gotoxy(cursorPosition.x, ++cursorPosition.y);
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}
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break;
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case '\r':
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// carrige return
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lcd_gotoxy(0, cursorPosition.y);
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break;
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default:
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if( (cursorPosition.x > 20) ||
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(getCharPosition(c) == 0xff) ) return;
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// mapping char
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c=getCharPosition(c);
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// print char at display
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#ifdef GRAPHICMODE
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for (uint8_t i = 0; i < sizeof(FONT[0]); i++)
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{
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// load bit-pattern from flash
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displayBuffer[cursorPosition.x+i+((cursorPosition.x*sizeof(FONT[0]))+(cursorPosition.y*DISPLAY_WIDTH))] =pgm_read_byte(&(FONT[(uint8_t)c][i]));;
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}
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#elif defined TEXTMODE
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i2c_start(LCD_I2C_ADR << 1);
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i2c_byte(0x40);
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for (uint8_t i = 0; i < sizeof(FONT[0]); i++)
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{
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// print font to ram, print 6 columns
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i2c_byte(pgm_read_byte(&(FONT[(uint8_t)c][i])));
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}
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i2c_stop();
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#endif
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cursorPosition.x++;
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break;
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}
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}
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void lcd_puts(const char* s){
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while (*s) {
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lcd_putc(*s++);
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@ -140,155 +233,9 @@ void lcd_puts_p(const char* progmem_s){
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lcd_putc(c);
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}
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}
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#if defined TEXTMODE
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#ifdef GRAPHICMODE
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#pragma mark -
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#pragma mark TEXTMODE
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void lcd_clrscr(void){
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uint8_t clearLine[DISPLAY_WIDTH];
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memset(clearLine, 0x00, DISPLAY_WIDTH);
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for (uint8_t j = 0; j < DISPLAY_HEIGHT/8; j++){
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lcd_gotoxy(0,j);
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lcd_data(clearLine, sizeof(clearLine));
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}
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lcd_home();
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}
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void lcd_gotoxy(uint8_t x, uint8_t y) {
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if( x > (DISPLAY_WIDTH/sizeof(FONT[0])) || y > (DISPLAY_HEIGHT/8-1)) return;// out of display
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cursorPosition.x=x;
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cursorPosition.y=y;
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x = x * sizeof(FONT[0]);
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#if defined SSD1306
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uint8_t commandSequence[] = {0xb0+y, 0x21, x, 0x7f};
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#elif defined SH1106
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uint8_t commandSequence[] = {0xb0+y, 0x21, 0x00+((2+x) & (0x0f)), 0x10+( ((2+x) & (0xf0)) >> 4 ), 0x7f};
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#endif
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lcd_command(commandSequence, sizeof(commandSequence));
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}
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void lcd_putc(char c){
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switch (c) {
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case '\b':
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// backspace
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lcd_gotoxy(cursorPosition.x-1, cursorPosition.y);
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lcd_putc(' ');
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lcd_gotoxy(cursorPosition.x-1, cursorPosition.y);
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break;
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case '\t':
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// tab
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if( (cursorPosition.x+4) < (DISPLAY_WIDTH/ sizeof(FONT[0])-4) ){
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lcd_gotoxy(cursorPosition.x+4, cursorPosition.y);
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}else{
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lcd_gotoxy(DISPLAY_WIDTH/ sizeof(FONT[0]), cursorPosition.y);
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}
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break;
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case '\n':
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// linefeed
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if(cursorPosition.y < (DISPLAY_HEIGHT/8-1)){
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lcd_gotoxy(cursorPosition.x, ++cursorPosition.y);
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}
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break;
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case '\r':
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// carrige return
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lcd_gotoxy(0, cursorPosition.y);
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break;
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default:
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if( (cursorPosition.x > 20) ||
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(getCharPosition(c) == 0xff) ) return;
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cursorPosition.x++;
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// mapping char
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c=getCharPosition(c);
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// print char at display
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i2c_start((LCD_I2C_ADR << 1) | 0);
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i2c_byte(0x40)
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for (uint8_t i = 0; i < sizeof(FONT[0]); i++)
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{
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// print font to ram, print 6 columns
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i2c_byte(pgm_read_byte(&(FONT[(uint8_t)c][i])));
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}
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i2c_stop();
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break;
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}
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}
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#elif defined GRAPHICMODE
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#pragma mark -
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#pragma mark GRAPHICMODE
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void lcd_clrscr(void){
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memset(displayBuffer, 0x00, sizeof(displayBuffer));
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#if defined SSD1306
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lcd_data(displayBuffer, sizeof(displayBuffer));
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#elif defined SH1106
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for (uint8_t i=0; i <= DISPLAY_HEIGHT/8; i++) {
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uint8_t actualLine[DISPLAY_WIDTH];
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for (uint8_t j=0; j< DISPLAY_WIDTH; j++) {
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actualLine[j]=displayBuffer[i*DISPLAY_WIDTH+j];
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}
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lcd_data(actualLine, sizeof(actualLine));
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lcd_gotoxy(0, i);
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}
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#endif
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lcd_home();
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}
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void lcd_gotoxy(uint8_t x, uint8_t y){
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if( x > (DISPLAY_WIDTH/sizeof(FONT[0])) || y > (DISPLAY_HEIGHT/8-1)) return;// out of display
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cursorPosition.x=x;
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cursorPosition.y=y;
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x = x * sizeof(FONT[0]);
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actualIndex = (x)+(y*DISPLAY_WIDTH);
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#if defined SSD1306
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uint8_t commandSequence[] = {0xb0+y, 0x21, x, 0x7f};
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#elif defined SH1106
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uint8_t commandSequence[] = {0xb0+y, 0x21, 0x00+((2+x) & (0x0f)), 0x10+( ((2+x) & (0xf0)) >> 4 ), 0x7f};
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#endif
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lcd_command(commandSequence, sizeof(commandSequence));
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}
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void lcd_putc(char c){
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switch (c) {
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case '\b':
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// backspace
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lcd_gotoxy(cursorPosition.x-1, cursorPosition.y);
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lcd_putc(' ');
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lcd_gotoxy(cursorPosition.x-1, cursorPosition.y);
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break;
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case '\t':
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// tab
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if( (cursorPosition.x+4) < (DISPLAY_WIDTH/sizeof(FONT[0])-4) ){
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lcd_gotoxy(cursorPosition.x+4, cursorPosition.y);
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}else{
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lcd_gotoxy(DISPLAY_WIDTH/sizeof(FONT[0]), cursorPosition.y);
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}
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break;
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case '\n':
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// linefeed
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if(cursorPosition.y < (DISPLAY_HEIGHT/8-1)){
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lcd_gotoxy(cursorPosition.x, ++cursorPosition.y);
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}
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break;
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case '\r':
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// carrige return
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lcd_gotoxy(0, cursorPosition.y);
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break;
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default:
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if((actualIndex+1)%127 != 0){
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if( (cursorPosition.x > 20) ||
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(getCharPosition(c) == 0xff) ) return;
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cursorPosition.x++;
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// mapping char
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c=getCharPosition(c);
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// print char at display
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for (uint8_t i = 0; i < sizeof(FONT[0]); i++)
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{
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// load bit-pattern from flash
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displayBuffer[actualIndex+i] =pgm_read_byte(&(FONT[(uint8_t)c][i]));;
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}
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}
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actualIndex += sizeof(FONT[0]);
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break;
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}
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}
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#pragma mark GRAPHIC FUNKCTIONS
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void lcd_drawPixel(uint8_t x, uint8_t y, uint8_t color){
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if( x > DISPLAY_WIDTH-1 || y > (DISPLAY_HEIGHT-1)) return; // out of Display
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if( color == WHITE){
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