Christian Lerche
Added circle and line support
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NokiaLCD.cpp
00001 /* mbed Nokia LCD Library 00002 * Copyright (c) 2007-2010, sford 00003 */ 00004 00005 #include "NokiaLCD.h" 00006 00007 #include "mbed.h" 00008 00009 #define NOKIALCD_ROWS 16 00010 #define NOKIALCD_COLS 16 00011 #define NOKIALCD_WIDTH 130 00012 #define NOKIALCD_HEIGHT 130 00013 #define NOKIALCD_FREQUENCY 5000000 00014 00015 NokiaLCD::NokiaLCD(PinName mosi, PinName sclk, PinName cs, PinName rst, LCDType type) 00016 : _spi(mosi, NC, sclk) 00017 , _rst(rst) 00018 , _cs(cs) { 00019 00020 _type = type; 00021 00022 _row = 0; 00023 _column = 0; 00024 _foreground = 0x00FFFFFF; 00025 _background = 0x00000000; 00026 00027 reset(); 00028 } 00029 00030 void NokiaLCD::reset() { 00031 00032 // setup the SPI interface and bring display out of reset 00033 _cs = 1; 00034 _rst = 0; 00035 _spi.format(9); 00036 _spi.frequency(NOKIALCD_FREQUENCY); 00037 wait_ms(1); 00038 _rst = 1; 00039 wait_ms(1); 00040 00041 _cs = 0; 00042 00043 switch (_type) { 00044 case LCD6100: 00045 command(0xCA); // display control 00046 data(0); 00047 data(32); 00048 data(0); 00049 command(0xBB); 00050 data(1); 00051 command(0xD1); // oscillator on 00052 command(0x94); // sleep out 00053 command(0x20); // power control 00054 data(0x0F); 00055 command(0xA7); // invert display 00056 command(0x81); // Voltage control 00057 data(39); // contrast setting: 0..63 00058 data(3); // resistance ratio 00059 wait_ms(1); 00060 command(0xBC); 00061 data(0); 00062 data(1); 00063 data(4); 00064 command(0xAF); // turn on the display 00065 break; 00066 00067 case LCD6610: 00068 command(0xCA); // display control 00069 data(0); 00070 data(31); 00071 data(0); 00072 command(0xBB); 00073 data(1); 00074 command(0xD1); // oscillator on 00075 command(0x94); // sleep out 00076 command(0x20); // power control 00077 data(0x0F); 00078 command(0xA7); // invert display 00079 command(0x81); // Voltage control 00080 data(39); // contrast setting: 0..63 00081 data(3); // resistance ratio 00082 wait_ms(1); 00083 command(0xBC); 00084 data(0); 00085 data(0); 00086 data(2); 00087 command(0xAF); // turn on the display 00088 break; 00089 00090 case PCF8833: 00091 command(0x11); // sleep out 00092 command(0x3A); // column mode 00093 data(0x05); 00094 command(0x36); // madctl 00095 data(0x60); // vertical RAM, flip x 00096 command(0x25); // setcon 00097 data(0x30);// contrast 0x30 00098 wait_ms(2); 00099 command(0x29);//DISPON 00100 command(0x03);//BSTRON 00101 break; 00102 } 00103 00104 _cs = 1; 00105 00106 cls(); 00107 } 00108 00109 void NokiaLCD::command(int value) { 00110 _spi.write(value & 0xFF); 00111 } 00112 00113 void NokiaLCD::data(int value) { 00114 _spi.write(value | 0x100); 00115 } 00116 00117 void NokiaLCD::_window(int x, int y, int width, int height) { 00118 int x1 = x + 2; 00119 int y1 = y + 0; 00120 int x2 = x1 + width - 1; 00121 int y2 = y1 + height - 1; 00122 00123 switch (_type) { 00124 case LCD6100: 00125 case LCD6610: 00126 command(0x15); // column 00127 data(x1); 00128 data(x2); 00129 command(0x75); // row 00130 data(y1); 00131 data(y2); 00132 command(0x5C); // start write to ram 00133 break; 00134 case PCF8833: 00135 command(0x2A); // column 00136 data(x1); 00137 data(x2); 00138 command(0x2B); // row 00139 data(y1); 00140 data(y2); 00141 command(0x2C); // start write to ram 00142 break; 00143 } 00144 } 00145 00146 void NokiaLCD::_putp(int colour) { 00147 int gr = ((colour >> 20) & 0x0F) 00148 | ((colour >> 8 ) & 0xF0); 00149 int nb = ((colour >> 4 ) & 0x0F); 00150 data(nb); 00151 data(gr); 00152 } 00153 00154 const unsigned char FONT8x8[97][8] = { 00155 0x08,0x08,0x08,0x00,0x00,0x00,0x00,0x00, // columns, rows, num_bytes_per_char 00156 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, // space 0x20 00157 0x30,0x78,0x78,0x30,0x30,0x00,0x30,0x00, // ! 00158 0x6C,0x6C,0x6C,0x00,0x00,0x00,0x00,0x00, // " 00159 0x6C,0x6C,0xFE,0x6C,0xFE,0x6C,0x6C,0x00, // # 00160 0x18,0x3E,0x60,0x3C,0x06,0x7C,0x18,0x00, // $ 00161 0x00,0x63,0x66,0x0C,0x18,0x33,0x63,0x00, // % 00162 0x1C,0x36,0x1C,0x3B,0x6E,0x66,0x3B,0x00, // & 00163 0x30,0x30,0x60,0x00,0x00,0x00,0x00,0x00, // ' 00164 0x0C,0x18,0x30,0x30,0x30,0x18,0x0C,0x00, // ( 00165 0x30,0x18,0x0C,0x0C,0x0C,0x18,0x30,0x00, // ) 00166 0x00,0x66,0x3C,0xFF,0x3C,0x66,0x00,0x00, // * 00167 0x00,0x30,0x30,0xFC,0x30,0x30,0x00,0x00, // + 00168 0x00,0x00,0x00,0x00,0x00,0x18,0x18,0x30, // , 00169 0x00,0x00,0x00,0x7E,0x00,0x00,0x00,0x00, // - 00170 0x00,0x00,0x00,0x00,0x00,0x18,0x18,0x00, // . 00171 0x03,0x06,0x0C,0x18,0x30,0x60,0x40,0x00, // / (forward slash) 00172 0x3E,0x63,0x63,0x6B,0x63,0x63,0x3E,0x00, // 0 0x30 00173 0x18,0x38,0x58,0x18,0x18,0x18,0x7E,0x00, // 1 00174 0x3C,0x66,0x06,0x1C,0x30,0x66,0x7E,0x00, // 2 00175 0x3C,0x66,0x06,0x1C,0x06,0x66,0x3C,0x00, // 3 00176 0x0E,0x1E,0x36,0x66,0x7F,0x06,0x0F,0x00, // 4 00177 0x7E,0x60,0x7C,0x06,0x06,0x66,0x3C,0x00, // 5 00178 0x1C,0x30,0x60,0x7C,0x66,0x66,0x3C,0x00, // 6 00179 0x7E,0x66,0x06,0x0C,0x18,0x18,0x18,0x00, // 7 00180 0x3C,0x66,0x66,0x3C,0x66,0x66,0x3C,0x00, // 8 00181 0x3C,0x66,0x66,0x3E,0x06,0x0C,0x38,0x00, // 9 00182 0x00,0x18,0x18,0x00,0x00,0x18,0x18,0x00, // : 00183 0x00,0x18,0x18,0x00,0x00,0x18,0x18,0x30, // ; 00184 0x0C,0x18,0x30,0x60,0x30,0x18,0x0C,0x00, // < 00185 0x00,0x00,0x7E,0x00,0x00,0x7E,0x00,0x00, // = 00186 0x30,0x18,0x0C,0x06,0x0C,0x18,0x30,0x00, // > 00187 0x3C,0x66,0x06,0x0C,0x18,0x00,0x18,0x00, // ? 00188 0x3E,0x63,0x6F,0x69,0x6F,0x60,0x3E,0x00, // @ 0x40 00189 0x18,0x3C,0x66,0x66,0x7E,0x66,0x66,0x00, // A 00190 0x7E,0x33,0x33,0x3E,0x33,0x33,0x7E,0x00, // B 00191 0x1E,0x33,0x60,0x60,0x60,0x33,0x1E,0x00, // C 00192 0x7C,0x36,0x33,0x33,0x33,0x36,0x7C,0x00, // D 00193 0x7F,0x31,0x34,0x3C,0x34,0x31,0x7F,0x00, // E 00194 0x7F,0x31,0x34,0x3C,0x34,0x30,0x78,0x00, // F 00195 0x1E,0x33,0x60,0x60,0x67,0x33,0x1F,0x00, // G 00196 0x66,0x66,0x66,0x7E,0x66,0x66,0x66,0x00, // H 00197 0x3C,0x18,0x18,0x18,0x18,0x18,0x3C,0x00, // I 00198 0x0F,0x06,0x06,0x06,0x66,0x66,0x3C,0x00, // J 00199 0x73,0x33,0x36,0x3C,0x36,0x33,0x73,0x00, // K 00200 0x78,0x30,0x30,0x30,0x31,0x33,0x7F,0x00, // L 00201 0x63,0x77,0x7F,0x7F,0x6B,0x63,0x63,0x00, // M 00202 0x63,0x73,0x7B,0x6F,0x67,0x63,0x63,0x00, // N 00203 0x3E,0x63,0x63,0x63,0x63,0x63,0x3E,0x00, // O 00204 0x7E,0x33,0x33,0x3E,0x30,0x30,0x78,0x00, // P 0x50 00205 0x3C,0x66,0x66,0x66,0x6E,0x3C,0x0E,0x00, // Q 00206 0x7E,0x33,0x33,0x3E,0x36,0x33,0x73,0x00, // R 00207 0x3C,0x66,0x30,0x18,0x0C,0x66,0x3C,0x00, // S 00208 0x7E,0x5A,0x18,0x18,0x18,0x18,0x3C,0x00, // T 00209 0x66,0x66,0x66,0x66,0x66,0x66,0x7E,0x00, // U 00210 0x66,0x66,0x66,0x66,0x66,0x3C,0x18,0x00, // V 00211 0x63,0x63,0x63,0x6B,0x7F,0x77,0x63,0x00, // W 00212 0x63,0x63,0x36,0x1C,0x1C,0x36,0x63,0x00, // X 00213 0x66,0x66,0x66,0x3C,0x18,0x18,0x3C,0x00, // Y 00214 0x7F,0x63,0x46,0x0C,0x19,0x33,0x7F,0x00, // Z 00215 0x3C,0x30,0x30,0x30,0x30,0x30,0x3C,0x00, // [ 00216 0x60,0x30,0x18,0x0C,0x06,0x03,0x01,0x00, // \ (back slash) 00217 0x3C,0x0C,0x0C,0x0C,0x0C,0x0C,0x3C,0x00, // ] 00218 0x08,0x1C,0x36,0x63,0x00,0x00,0x00,0x00, // ^ 00219 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xFF, // _ 00220 0x18,0x18,0x0C,0x00,0x00,0x00,0x00,0x00, // ` 0x60 00221 0x00,0x00,0x3C,0x06,0x3E,0x66,0x3B,0x00, // a 00222 0x70,0x30,0x3E,0x33,0x33,0x33,0x6E,0x00, // b 00223 0x00,0x00,0x3C,0x66,0x60,0x66,0x3C,0x00, // c 00224 0x0E,0x06,0x3E,0x66,0x66,0x66,0x3B,0x00, // d 00225 0x00,0x00,0x3C,0x66,0x7E,0x60,0x3C,0x00, // e 00226 0x1C,0x36,0x30,0x78,0x30,0x30,0x78,0x00, // f 00227 0x00,0x00,0x3B,0x66,0x66,0x3E,0x06,0x7C, // g 00228 0x70,0x30,0x36,0x3B,0x33,0x33,0x73,0x00, // h 00229 0x18,0x00,0x38,0x18,0x18,0x18,0x3C,0x00, // i 00230 0x06,0x00,0x06,0x06,0x06,0x66,0x66,0x3C, // j 00231 0x70,0x30,0x33,0x36,0x3C,0x36,0x73,0x00, // k 00232 0x38,0x18,0x18,0x18,0x18,0x18,0x3C,0x00, // l 00233 0x00,0x00,0x66,0x7F,0x7F,0x6B,0x63,0x00, // m 00234 0x00,0x00,0x7C,0x66,0x66,0x66,0x66,0x00, // n 00235 0x00,0x00,0x3C,0x66,0x66,0x66,0x3C,0x00, // o 00236 0x00,0x00,0x6E,0x33,0x33,0x3E,0x30,0x78, // p 00237 0x00,0x00,0x3B,0x66,0x66,0x3E,0x06,0x0F, // q 00238 0x00,0x00,0x6E,0x3B,0x33,0x30,0x78,0x00, // r 00239 0x00,0x00,0x3E,0x60,0x3C,0x06,0x7C,0x00, // s 00240 0x08,0x18,0x3E,0x18,0x18,0x1A,0x0C,0x00, // t 00241 0x00,0x00,0x66,0x66,0x66,0x66,0x3B,0x00, // u 00242 0x00,0x00,0x66,0x66,0x66,0x3C,0x18,0x00, // v 00243 0x00,0x00,0x63,0x6B,0x7F,0x7F,0x36,0x00, // w 00244 0x00,0x00,0x63,0x36,0x1C,0x36,0x63,0x00, // x 00245 0x00,0x00,0x66,0x66,0x66,0x3E,0x06,0x7C, // y 00246 0x00,0x00,0x7E,0x4C,0x18,0x32,0x7E,0x00, // z 00247 0x0E,0x18,0x18,0x70,0x18,0x18,0x0E,0x00, // { 00248 0x0C,0x0C,0x0C,0x00,0x0C,0x0C,0x0C,0x00, // | 00249 0x70,0x18,0x18,0x0E,0x18,0x18,0x70,0x00, // } 00250 0x3B,0x6E,0x00,0x00,0x00,0x00,0x00,0x00, // ~ 00251 0x1C,0x36,0x36,0x1C,0x00,0x00,0x00,0x00 00252 }; // DEL 00253 00254 void NokiaLCD::locate(int column, int row) { 00255 _column = column; 00256 _row = row; 00257 } 00258 00259 void NokiaLCD::newline() { 00260 _column = 0; 00261 _row++; 00262 if (_row >= _rows) { 00263 _row = 0; 00264 } 00265 } 00266 00267 int NokiaLCD::_putc(int value) { 00268 int x = _column * 8; // FIXME: Char sizes 00269 int y = _row * 8; 00270 bitblit(x + 1, y + 1, 8, 8, (char*)&(FONT8x8[value - 0x1F][0])); 00271 00272 _column++; 00273 00274 if (_column >= NOKIALCD_COLS) { 00275 _row++; 00276 _column = 0; 00277 } 00278 00279 if (_row >= NOKIALCD_ROWS) { 00280 _row = 0; 00281 } 00282 00283 return value; 00284 } 00285 00286 void NokiaLCD::cls() { 00287 fill(0, 0, NOKIALCD_WIDTH, NOKIALCD_HEIGHT, _background); 00288 _row = 0; 00289 _column = 0; 00290 } 00291 00292 00293 void NokiaLCD::window(int x, int y, int width, int height) { 00294 _cs = 0; 00295 _window(x, y, width, height); 00296 _cs = 1; 00297 } 00298 00299 void NokiaLCD::putp(int colour) { 00300 _cs = 0; 00301 _putp(colour); 00302 _cs = 1; 00303 } 00304 00305 void NokiaLCD::pixel(int x, int y, int colour) { 00306 _cs = 0; 00307 _window(x, y, 1, 1); 00308 _putp(colour); 00309 _cs = 1; 00310 } 00311 00312 void NokiaLCD::fill(int x, int y, int width, int height, int colour) { 00313 _cs = 0; 00314 _window(x, y, width, height); 00315 for (int i=0; i<width*height; i++) { 00316 _putp(colour); 00317 } 00318 _window(0, 0, NOKIALCD_WIDTH, NOKIALCD_HEIGHT); 00319 _cs = 1; 00320 } 00321 00322 void NokiaLCD::circle(int x0, int y0, int r, int colour) { 00323 int draw_x0, draw_y0; 00324 int draw_x1, draw_y1; 00325 int draw_x2, draw_y2; 00326 int draw_x3, draw_y3; 00327 int draw_x4, draw_y4; 00328 int draw_x5, draw_y5; 00329 int draw_x6, draw_y6; 00330 int draw_x7, draw_y7; 00331 int xx, yy; 00332 int di; 00333 00334 _cs = 0; 00335 _window(x0, y0, 1, 1); 00336 00337 if(r == 0) /* no radius */ 00338 { 00339 return; 00340 } 00341 00342 draw_x0 = draw_x1 = x0; 00343 draw_y0 = draw_y1 = y0 + r; 00344 if(draw_y0 < NOKIALCD_HEIGHT) 00345 { 00346 _window(draw_x0, draw_y0, 1, 1); 00347 _putp(colour); /* 90 degree */ 00348 } 00349 00350 draw_x2 = draw_x3 = x0; 00351 draw_y2 = draw_y3 = y0 - r; 00352 if(draw_y2 >= 0) 00353 { 00354 _window(draw_x2, draw_y2, 1, 1); 00355 _putp(colour); /* 270 degree */ 00356 } 00357 00358 draw_x4 = draw_x6 = x0 + r; 00359 draw_y4 = draw_y6 = y0; 00360 if(draw_x4 < NOKIALCD_WIDTH) 00361 { 00362 _window(draw_x4, draw_y4, 1, 1); 00363 _putp(colour); /* 0 degree */ 00364 } 00365 00366 draw_x5 = draw_x7 = x0 - r; 00367 draw_y5 = draw_y7 = y0; 00368 if(draw_x5>=0) 00369 { 00370 _window(draw_x5, draw_y5, 1, 1); 00371 _putp(colour); /* 90 degree */ /* 180 degree */ 00372 } 00373 00374 if(r == 1) 00375 { 00376 return; 00377 } 00378 00379 di = 3 - 2*r; 00380 xx = 0; 00381 yy = r; 00382 while(xx < yy) 00383 { 00384 00385 if(di < 0) 00386 { 00387 di += 4*xx + 6; 00388 } 00389 else 00390 { 00391 di += 4*(xx - yy) + 10; 00392 yy--; 00393 draw_y0--; 00394 draw_y1--; 00395 draw_y2++; 00396 draw_y3++; 00397 draw_x4--; 00398 draw_x5++; 00399 draw_x6--; 00400 draw_x7++; 00401 } 00402 xx++; 00403 draw_x0++; 00404 draw_x1--; 00405 draw_x2++; 00406 draw_x3--; 00407 draw_y4++; 00408 draw_y5++; 00409 draw_y6--; 00410 draw_y7--; 00411 00412 if( (draw_x0 <= NOKIALCD_WIDTH) && (draw_y0>=0) ) 00413 { 00414 _window(draw_x0, draw_y0, 1, 1); 00415 _putp(colour); 00416 } 00417 00418 if( (draw_x1 >= 0) && (draw_y1 >= 0) ) 00419 { 00420 _window(draw_x1, draw_y1, 1, 1); 00421 _putp(colour); 00422 } 00423 00424 if( (draw_x2 <= NOKIALCD_WIDTH) && (draw_y2 <= NOKIALCD_HEIGHT) ) 00425 { 00426 _window(draw_x2, draw_y2, 1, 1); 00427 _putp(colour); 00428 } 00429 00430 if( (draw_x3 >=0 ) && (draw_y3 <= NOKIALCD_HEIGHT) ) 00431 { 00432 _window(draw_x3, draw_y3, 1, 1); 00433 _putp(colour); 00434 } 00435 00436 if( (draw_x4 <= /*OLED_DISPLAY_HEIGHT*/NOKIALCD_WIDTH) && (draw_y4 >= 0) ) 00437 { 00438 _window(draw_x4, draw_y4, 1, 1); 00439 _putp(colour); 00440 } 00441 00442 if( (draw_x5 >= 0) && (draw_y5 >= 0) ) 00443 { 00444 _window(draw_x5, draw_y5, 1, 1); 00445 _putp(colour); 00446 } 00447 if( (draw_x6 <= NOKIALCD_WIDTH) && (draw_y6 <= NOKIALCD_HEIGHT) ) 00448 { 00449 _window(draw_x6, draw_y6, 1, 1); 00450 _putp(colour); 00451 } 00452 if( (draw_x7 >= 0) && (draw_y7 <= NOKIALCD_HEIGHT) ) 00453 { 00454 _window(draw_x7, draw_y7, 1, 1); 00455 _putp(colour); 00456 } 00457 } 00458 _cs = 1; 00459 return; 00460 } 00461 00462 void NokiaLCD::line(int x0, int y0, int x1, int y1, int colour) { 00463 int dx = 0, dy = 0; 00464 int dx_sym = 0, dy_sym = 0; 00465 int dx_x2 = 0, dy_x2 = 0; 00466 int di = 0; 00467 00468 _cs = 0; // Chipselect the LCD. 00469 00470 dx = x1-x0; 00471 dy = y1-y0; 00472 00473 00474 if(dx == 0) /* vertical line */ 00475 { 00476 for(int y=y0; y<y1; y++){ 00477 _window(x0, y, 1, 1); 00478 _putp(colour); 00479 } 00480 return; 00481 } 00482 00483 if(dx > 0) 00484 { 00485 dx_sym = 1; 00486 } 00487 else 00488 { 00489 dx_sym = -1; 00490 } 00491 00492 00493 if(dy == 0) /* horizontal line */ 00494 { 00495 for(int x=x0; x<x1; x++){ 00496 _window(x, y0, 1, 1); 00497 _putp(colour); 00498 } 00499 return; 00500 } 00501 00502 00503 if(dy > 0) 00504 { 00505 dy_sym = 1; 00506 } 00507 else 00508 { 00509 dy_sym = -1; 00510 } 00511 00512 dx = dx_sym*dx; 00513 dy = dy_sym*dy; 00514 00515 dx_x2 = dx*2; 00516 dy_x2 = dy*2; 00517 00518 if(dx >= dy) 00519 { 00520 di = dy_x2 - dx; 00521 while(x0 != x1) 00522 { 00523 00524 _window(x0, y0, 1, 1); 00525 _putp(colour); 00526 x0 += dx_sym; 00527 if(di<0) 00528 { 00529 di += dy_x2; 00530 } 00531 else 00532 { 00533 di += dy_x2 - dx_x2; 00534 y0 += dy_sym; 00535 } 00536 } 00537 _window(x0, y0, 1, 1); 00538 _putp(colour); 00539 } 00540 else 00541 { 00542 di = dx_x2 - dy; 00543 while(y0 != y1) 00544 { 00545 _window(x0, y0, 1, 1); 00546 _putp(colour); 00547 y0 += dy_sym; 00548 if(di < 0) 00549 { 00550 di += dx_x2; 00551 } 00552 else 00553 { 00554 di += dx_x2 - dy_x2; 00555 x0 += dx_sym; 00556 } 00557 } 00558 _window(x0, y0, 1, 1); 00559 _putp(colour); 00560 } 00561 _cs = 1; 00562 return; 00563 } 00564 00565 void NokiaLCD::blit(int x, int y, int width, int height, const int* colour) { 00566 _cs = 0; 00567 _window(x, y, width, height); 00568 for (int i=0; i<width*height; i++) { 00569 _putp(colour[i]); 00570 } 00571 _window(0, 0, NOKIALCD_WIDTH, NOKIALCD_HEIGHT); 00572 _cs = 1; 00573 } 00574 00575 void NokiaLCD::bitblit(int x, int y, int width, int height, const char* bitstream) { 00576 _cs = 0; 00577 _window(x, y, width, height); 00578 for (int i=0; i<height*width; i++) { 00579 int byte = i / 8; 00580 int bit = i % 8; 00581 int colour = ((bitstream[byte] << bit) & 0x80) ? _foreground : _background; 00582 _putp(colour); 00583 } 00584 _window(0, 0, _width, _height); 00585 _cs = 1; 00586 } 00587 00588 void NokiaLCD::foreground(int c) { 00589 _foreground = c; 00590 } 00591 00592 void NokiaLCD::background(int c) { 00593 _background = c; 00594 } 00595 00596 int NokiaLCD::width() { 00597 return NOKIALCD_WIDTH; 00598 } 00599 00600 int NokiaLCD::height() { 00601 return NOKIALCD_HEIGHT; 00602 } 00603 00604 int NokiaLCD::columns() { 00605 return NOKIALCD_COLS; 00606 } 00607 00608 int NokiaLCD::rows() { 00609 return NOKIALCD_ROWS; 00610 }
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