Slava / UniGraphicCyrillic

Important changes to repositories hosted on mbed.com

Mbed hosted mercurial repositories are deprecated and are due to be permanently deleted in July 2026.

To keep a copy of this software download the repository Zip archive or clone locally using Mercurial.

It is also possible to export all your personal repositories from the account settings page.

Fork of UniGraphicCyrillic by SlavaRoland

Display/LCD.cpp@2:713844a55c4e, 2015-02-13 (annotated)

Committer:
Geremia
Date:
Fri Feb 13 23:17:55 2015 +0000
Revision:
2:713844a55c4e
Parent:
1:ff019d22b275
Child:
3:48f3282c2be8
Initial TFT implementation, needs to add read cmds

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Geremia 0:75ec1b3cde17 1 #include "LCD.h"
Geremia 0:75ec1b3cde17 2
Geremia 0:75ec1b3cde17 3 //#include "mbed_debug.h"
Geremia 0:75ec1b3cde17 4 //#define LCDPAGES (LCDSIZE_Y>>3) // 8raws per page
Geremia 0:75ec1b3cde17 5 //#define IC_PAGES (IC_Y_COMS>>3) // max pages in IC ddram, 8raws per page
Geremia 0:75ec1b3cde17 6 #define SWAP(a, b) { a ^= b; b ^= a; a ^= b; }
Geremia 1:ff019d22b275 7 //#define USEFRAMEBUFFER
Geremia 2:713844a55c4e 8
Geremia 0:75ec1b3cde17 9 //#define FRAMEBUFSIZE (LCDSIZE_X*LCDPAGES)
Geremia 2:713844a55c4e 10
Geremia 0:75ec1b3cde17 11
Geremia 0:75ec1b3cde17 12 LCD::LCD(proto_t displayproto, PortName port, PinName CS, PinName reset, PinName DC, PinName WR, PinName RD, const int lcdsize_x, const int lcdsize_y, const int ic_x_segs, const int ic_y_coms, const char *name)
Geremia 0:75ec1b3cde17 13 : /*PAR8(port, CS, reset, DC, WR, RD),*/ GraphicsDisplay(name), LCDSIZE_X(lcdsize_x), LCDSIZE_Y(lcdsize_y), LCDPAGES(lcdsize_y>>3), IC_X_SEGS(ic_x_segs), IC_Y_COMS(ic_y_coms), IC_PAGES(ic_y_coms>>3)
Geremia 0:75ec1b3cde17 14 {
Geremia 0:75ec1b3cde17 15 // LCDPAGES = LCDSIZE_Y>>3;
Geremia 0:75ec1b3cde17 16 // IC_PAGES = IC_Y_COMS>>3;
Geremia 0:75ec1b3cde17 17 // buffer = new unsigned char [LCDSIZE_X*LCDPAGES];
Geremia 0:75ec1b3cde17 18 // PAR8 par8proto(port, CS, reset, DC, WR, RD);
Geremia 0:75ec1b3cde17 19 if(displayproto==PAR_8) proto = new PAR8(port, CS, reset, DC, WR, RD);
Geremia 1:ff019d22b275 20 useNOP=false;
Geremia 0:75ec1b3cde17 21 buffer = (unsigned char*) malloc (LCDSIZE_X*LCDPAGES);
Geremia 1:ff019d22b275 22 buffer16 = (unsigned short*)buffer;
Geremia 0:75ec1b3cde17 23 draw_mode = NORMAL;
Geremia 0:75ec1b3cde17 24 set_orientation(1);
Geremia 2:713844a55c4e 25 foreground(Black);
Geremia 2:713844a55c4e 26 background(White);
Geremia 2:713844a55c4e 27 set_auto_up(true);
Geremia 0:75ec1b3cde17 28 // cls();
Geremia 0:75ec1b3cde17 29 // locate(0,0);
Geremia 0:75ec1b3cde17 30 }
Geremia 1:ff019d22b275 31 LCD::LCD(proto_t displayproto, int Hz, PinName mosi, PinName miso, PinName sclk, PinName CS, PinName reset, PinName DC, const int lcdsize_x, const int lcdsize_y, const int ic_x_segs, const int ic_y_coms, const char *name)
Geremia 0:75ec1b3cde17 32 : GraphicsDisplay(name), LCDSIZE_X(lcdsize_x), LCDSIZE_Y(lcdsize_y), LCDPAGES(lcdsize_y>>3), IC_X_SEGS(ic_x_segs), IC_Y_COMS(ic_y_coms), IC_PAGES(ic_y_coms>>3)
Geremia 0:75ec1b3cde17 33 {
Geremia 0:75ec1b3cde17 34 // LCDPAGES = LCDSIZE_Y>>3;
Geremia 0:75ec1b3cde17 35 // IC_PAGES = IC_Y_COMS>>3;
Geremia 0:75ec1b3cde17 36 // buffer = new unsigned char [LCDSIZE_X*LCDPAGES];
Geremia 0:75ec1b3cde17 37 // PAR8 par8proto(port, CS, reset, DC, WR, RD);
Geremia 1:ff019d22b275 38 if(displayproto==SPI_8)
Geremia 1:ff019d22b275 39 {
Geremia 1:ff019d22b275 40 proto = new SPI8(Hz, mosi, miso, sclk, CS, reset, DC);
Geremia 1:ff019d22b275 41 useNOP=false;
Geremia 1:ff019d22b275 42 }
Geremia 1:ff019d22b275 43 else if(displayproto==SPI_16)
Geremia 1:ff019d22b275 44 {
Geremia 1:ff019d22b275 45 proto = new SPI16(Hz, mosi, miso, sclk, CS, reset, DC);
Geremia 1:ff019d22b275 46 useNOP=true;
Geremia 1:ff019d22b275 47 }
Geremia 0:75ec1b3cde17 48 buffer = (unsigned char*) malloc (LCDSIZE_X*LCDPAGES);
Geremia 1:ff019d22b275 49 buffer16 = (unsigned short*)buffer;
Geremia 0:75ec1b3cde17 50 draw_mode = NORMAL;
Geremia 0:75ec1b3cde17 51 // cls();
Geremia 0:75ec1b3cde17 52 set_orientation(1);
Geremia 2:713844a55c4e 53 foreground(Black);
Geremia 2:713844a55c4e 54 background(White);
Geremia 2:713844a55c4e 55 set_auto_up(true);
Geremia 0:75ec1b3cde17 56 // locate(0,0);
Geremia 1:ff019d22b275 57
Geremia 0:75ec1b3cde17 58 }
Geremia 0:75ec1b3cde17 59 LCD::~LCD()
Geremia 0:75ec1b3cde17 60 {
Geremia 0:75ec1b3cde17 61 free(buffer);
Geremia 0:75ec1b3cde17 62 }
Geremia 0:75ec1b3cde17 63
Geremia 1:ff019d22b275 64 void LCD::wr_cmd8(unsigned char cmd)
Geremia 0:75ec1b3cde17 65 {
Geremia 2:713844a55c4e 66 if(useNOP) proto->wr_cmd16(0xE300|cmd); // E3 is NOP cmd for LCD
Geremia 1:ff019d22b275 67 else proto->wr_cmd8(cmd);
Geremia 0:75ec1b3cde17 68 }
Geremia 1:ff019d22b275 69 void LCD::wr_data8(unsigned char data)
Geremia 0:75ec1b3cde17 70 {
Geremia 1:ff019d22b275 71 proto->wr_data8(data);
Geremia 1:ff019d22b275 72 }
Geremia 1:ff019d22b275 73 void LCD::wr_data8(unsigned char data, unsigned int count)
Geremia 1:ff019d22b275 74 {
Geremia 1:ff019d22b275 75 proto->wr_data8(data, count);
Geremia 0:75ec1b3cde17 76 }
Geremia 1:ff019d22b275 77 void LCD::wr_data8buf(unsigned char* data, unsigned int lenght)
Geremia 0:75ec1b3cde17 78 {
Geremia 1:ff019d22b275 79 proto->wr_data8buf(data, lenght);
Geremia 1:ff019d22b275 80 }
Geremia 1:ff019d22b275 81 void LCD::wr_cmd16(unsigned short cmd)
Geremia 1:ff019d22b275 82 {
Geremia 1:ff019d22b275 83 proto->wr_cmd16(cmd);
Geremia 0:75ec1b3cde17 84 }
Geremia 1:ff019d22b275 85 void LCD::wr_data16(unsigned short data, unsigned int count)
Geremia 0:75ec1b3cde17 86 {
Geremia 1:ff019d22b275 87 proto->wr_data16(data, count);
Geremia 1:ff019d22b275 88 }
Geremia 1:ff019d22b275 89 void LCD::wr_data16buf(unsigned short* data, unsigned int lenght)
Geremia 1:ff019d22b275 90 {
Geremia 1:ff019d22b275 91 proto->wr_data16buf(data, lenght);
Geremia 0:75ec1b3cde17 92 }
Geremia 0:75ec1b3cde17 93 void LCD::hw_reset()
Geremia 0:75ec1b3cde17 94 {
Geremia 0:75ec1b3cde17 95 proto->hw_reset();
Geremia 0:75ec1b3cde17 96 }
Geremia 0:75ec1b3cde17 97 void LCD::BusEnable(bool enable)
Geremia 0:75ec1b3cde17 98 {
Geremia 0:75ec1b3cde17 99 proto->BusEnable(enable);
Geremia 0:75ec1b3cde17 100 }
Geremia 0:75ec1b3cde17 101
Geremia 0:75ec1b3cde17 102
Geremia 0:75ec1b3cde17 103
Geremia 0:75ec1b3cde17 104 // monochrome LCD driver ICs does not have ram rotate in hw (swap raw<->columns) like TFT displays
Geremia 0:75ec1b3cde17 105 // for portrait views, XY swap will be done in sw in pixel() function
Geremia 0:75ec1b3cde17 106 void LCD::set_orientation(int o)
Geremia 0:75ec1b3cde17 107 {
Geremia 0:75ec1b3cde17 108 orientation = o;
Geremia 0:75ec1b3cde17 109 switch (o) {
Geremia 0:75ec1b3cde17 110 case (0):// portrait view -90°
Geremia 0:75ec1b3cde17 111 mirrorXY(Y);
Geremia 0:75ec1b3cde17 112 col_offset = 0;
Geremia 0:75ec1b3cde17 113 page_offset = IC_PAGES-LCDPAGES;
Geremia 0:75ec1b3cde17 114 set_width(LCDSIZE_Y);
Geremia 0:75ec1b3cde17 115 set_height(LCDSIZE_X);
Geremia 0:75ec1b3cde17 116 // portrait = true;
Geremia 0:75ec1b3cde17 117 break;
Geremia 0:75ec1b3cde17 118 case (1): // default, landscape view 0°
Geremia 0:75ec1b3cde17 119 mirrorXY(NONE);
Geremia 0:75ec1b3cde17 120 col_offset = 0;
Geremia 0:75ec1b3cde17 121 page_offset = 0;
Geremia 0:75ec1b3cde17 122 set_width(LCDSIZE_X);
Geremia 0:75ec1b3cde17 123 set_height(LCDSIZE_Y);
Geremia 0:75ec1b3cde17 124 // portrait = false;
Geremia 0:75ec1b3cde17 125 break;
Geremia 0:75ec1b3cde17 126 case (2):// portrait view +90°
Geremia 0:75ec1b3cde17 127 mirrorXY(X);
Geremia 0:75ec1b3cde17 128 col_offset = IC_X_SEGS-LCDSIZE_X; // some displays have less pixels than IC ram
Geremia 0:75ec1b3cde17 129 page_offset = 0;
Geremia 0:75ec1b3cde17 130 set_width(LCDSIZE_Y);
Geremia 0:75ec1b3cde17 131 set_height(LCDSIZE_X);
Geremia 0:75ec1b3cde17 132 // portrait = true;
Geremia 0:75ec1b3cde17 133 break;
Geremia 0:75ec1b3cde17 134 case (3):// landscape view +180°
Geremia 0:75ec1b3cde17 135 mirrorXY(XY);
Geremia 0:75ec1b3cde17 136 col_offset = IC_X_SEGS-LCDSIZE_X;
Geremia 0:75ec1b3cde17 137 page_offset = IC_PAGES-LCDPAGES;
Geremia 0:75ec1b3cde17 138 set_width(LCDSIZE_X);
Geremia 0:75ec1b3cde17 139 set_height(LCDSIZE_Y);
Geremia 0:75ec1b3cde17 140 // portrait = false;
Geremia 0:75ec1b3cde17 141 break;
Geremia 0:75ec1b3cde17 142 }
Geremia 0:75ec1b3cde17 143 }
Geremia 0:75ec1b3cde17 144 void LCD::mirrorXY(mirror_t mode)
Geremia 0:75ec1b3cde17 145 {
Geremia 0:75ec1b3cde17 146 switch (mode)
Geremia 0:75ec1b3cde17 147 {
Geremia 0:75ec1b3cde17 148 case(NONE):
Geremia 1:ff019d22b275 149 // wr_cmd8(0xA0);
Geremia 1:ff019d22b275 150 wr_cmd16(0xA0C8); // this is in real Y mirror command, but seems most displays have COMs wired inverted, so assume this is the default no-y-mirror
Geremia 0:75ec1b3cde17 151 break;
Geremia 0:75ec1b3cde17 152 case(X):
Geremia 1:ff019d22b275 153 // wr_cmd8(0xA1);
Geremia 1:ff019d22b275 154 wr_cmd16(0xA1C8);
Geremia 0:75ec1b3cde17 155 break;
Geremia 0:75ec1b3cde17 156 case(Y):
Geremia 1:ff019d22b275 157 // wr_cmd8(0xA0);
Geremia 1:ff019d22b275 158 wr_cmd16(0xA0C0);
Geremia 0:75ec1b3cde17 159 break;
Geremia 0:75ec1b3cde17 160 case(XY):
Geremia 1:ff019d22b275 161 // wr_cmd8(0xA1);
Geremia 1:ff019d22b275 162 wr_cmd16(0xA1C0);
Geremia 0:75ec1b3cde17 163 break;
Geremia 0:75ec1b3cde17 164 }
Geremia 0:75ec1b3cde17 165 }
Geremia 0:75ec1b3cde17 166 void LCD::invert(unsigned char o)
Geremia 0:75ec1b3cde17 167 {
Geremia 1:ff019d22b275 168 if(o == 0) wr_cmd8(0xA6);
Geremia 1:ff019d22b275 169 else wr_cmd8(0xA7);
Geremia 0:75ec1b3cde17 170 }
Geremia 0:75ec1b3cde17 171
Geremia 0:75ec1b3cde17 172 void LCD::set_contrast(int o)
Geremia 0:75ec1b3cde17 173 {
Geremia 0:75ec1b3cde17 174 contrast = o;
Geremia 1:ff019d22b275 175 // wr_cmd8(0x81); // set volume
Geremia 1:ff019d22b275 176 wr_cmd16(0x8100|(o&0x3F));
Geremia 0:75ec1b3cde17 177 }
Geremia 2:713844a55c4e 178
Geremia 0:75ec1b3cde17 179 int LCD::get_contrast(void)
Geremia 0:75ec1b3cde17 180 {
Geremia 0:75ec1b3cde17 181 return(contrast);
Geremia 0:75ec1b3cde17 182 }
Geremia 0:75ec1b3cde17 183 void LCD::window(int x, int y, int w, int h) {
Geremia 0:75ec1b3cde17 184 // current pixel location
Geremia 0:75ec1b3cde17 185 cur_x = x;
Geremia 0:75ec1b3cde17 186 cur_y = y;
Geremia 0:75ec1b3cde17 187 // window settings
Geremia 0:75ec1b3cde17 188 win_x1 = x;
Geremia 0:75ec1b3cde17 189 win_x2 = x + w - 1;
Geremia 0:75ec1b3cde17 190 win_y1 = y;
Geremia 0:75ec1b3cde17 191 win_y2 = y + h - 1;
Geremia 0:75ec1b3cde17 192 }
Geremia 0:75ec1b3cde17 193 void LCD::window_pushpixel(unsigned short color) {
Geremia 0:75ec1b3cde17 194 pixel(cur_x, cur_y, color);
Geremia 0:75ec1b3cde17 195 cur_x++;
Geremia 0:75ec1b3cde17 196 if(cur_x > win_x2) {
Geremia 0:75ec1b3cde17 197 cur_x = win_x1;
Geremia 0:75ec1b3cde17 198 cur_y++;
Geremia 0:75ec1b3cde17 199 if(cur_y > win_y2) {
Geremia 0:75ec1b3cde17 200 cur_y = win_y1;
Geremia 0:75ec1b3cde17 201 }
Geremia 0:75ec1b3cde17 202 }
Geremia 0:75ec1b3cde17 203 }
Geremia 2:713844a55c4e 204 void LCD::window_pushpixel(unsigned short color, unsigned int count) {
Geremia 2:713844a55c4e 205 while(count)
Geremia 2:713844a55c4e 206 {
Geremia 2:713844a55c4e 207 pixel(cur_x, cur_y, color);
Geremia 2:713844a55c4e 208 cur_x++;
Geremia 2:713844a55c4e 209 if(cur_x > win_x2)
Geremia 2:713844a55c4e 210 {
Geremia 2:713844a55c4e 211 cur_x = win_x1;
Geremia 2:713844a55c4e 212 cur_y++;
Geremia 2:713844a55c4e 213 if(cur_y > win_y2)
Geremia 2:713844a55c4e 214 {
Geremia 2:713844a55c4e 215 cur_y = win_y1;
Geremia 2:713844a55c4e 216 }
Geremia 2:713844a55c4e 217 }
Geremia 2:713844a55c4e 218 count--;
Geremia 2:713844a55c4e 219 }
Geremia 2:713844a55c4e 220 }
Geremia 2:713844a55c4e 221 void LCD::window_pushpixelbuf(unsigned short* color, unsigned int lenght) {
Geremia 2:713844a55c4e 222 while(lenght)
Geremia 2:713844a55c4e 223 {
Geremia 2:713844a55c4e 224 pixel(cur_x, cur_y, *color++);
Geremia 2:713844a55c4e 225 cur_x++;
Geremia 2:713844a55c4e 226 if(cur_x > win_x2)
Geremia 2:713844a55c4e 227 {
Geremia 2:713844a55c4e 228 cur_x = win_x1;
Geremia 2:713844a55c4e 229 cur_y++;
Geremia 2:713844a55c4e 230 if(cur_y > win_y2)
Geremia 2:713844a55c4e 231 {
Geremia 2:713844a55c4e 232 cur_y = win_y1;
Geremia 2:713844a55c4e 233 }
Geremia 2:713844a55c4e 234 }
Geremia 2:713844a55c4e 235 lenght--;
Geremia 2:713844a55c4e 236 }
Geremia 2:713844a55c4e 237 }
Geremia 0:75ec1b3cde17 238 void LCD::pixel(int x, int y, unsigned short color)
Geremia 0:75ec1b3cde17 239 {
Geremia 0:75ec1b3cde17 240 if(!(orientation&1)) SWAP(x,y);
Geremia 0:75ec1b3cde17 241 // first check parameter
Geremia 0:75ec1b3cde17 242 if((x >= LCDSIZE_X) || (y >= LCDSIZE_Y)) return;
Geremia 0:75ec1b3cde17 243
Geremia 0:75ec1b3cde17 244 // if(draw_mode == NORMAL)
Geremia 0:75ec1b3cde17 245 // {
Geremia 2:713844a55c4e 246 if(color == Black) buffer[(x + ((y>>3)*LCDSIZE_X))^1] &= ~(1 << (y&7)); // erase pixel
Geremia 1:ff019d22b275 247 else buffer[(x + ((y>>3)*LCDSIZE_X))^1] |= (1 << (y&7)); // set pixel
Geremia 0:75ec1b3cde17 248 // }
Geremia 0:75ec1b3cde17 249 // else
Geremia 0:75ec1b3cde17 250 // { // XOR mode
Geremia 0:75ec1b3cde17 251 // if(color == 1) buffer[x + ((y>>3) * LCDSIZE_X)] ^= (1 << (y&7)); // xor pixel
Geremia 0:75ec1b3cde17 252 // }
Geremia 0:75ec1b3cde17 253 }
Geremia 0:75ec1b3cde17 254 void LCD::copy_to_lcd(void)
Geremia 0:75ec1b3cde17 255 {
Geremia 0:75ec1b3cde17 256 unsigned short i=0;
Geremia 1:ff019d22b275 257 unsigned short setcolcmd = 0x0010 | ((col_offset&0xF)<<8) | (col_offset>>4);
Geremia 0:75ec1b3cde17 258 for(int page=0; page<LCDPAGES; page++)
Geremia 0:75ec1b3cde17 259 {
Geremia 1:ff019d22b275 260 // wr_cmd8(col_offset&0xF); // set column low nibble
Geremia 1:ff019d22b275 261 // wr_cmd8(0x10|(col_offset>>4)); // set column hi nibble
Geremia 1:ff019d22b275 262 wr_cmd16(setcolcmd);
Geremia 1:ff019d22b275 263 wr_cmd8(0xB0|(page+page_offset)); // set page
Geremia 1:ff019d22b275 264 wr_data16buf(buffer16+i, LCDSIZE_X>>1); // send whole page pixels
Geremia 1:ff019d22b275 265 i+=LCDSIZE_X>>1;
Geremia 0:75ec1b3cde17 266 }
Geremia 0:75ec1b3cde17 267 }
Geremia 0:75ec1b3cde17 268 void LCD::cls(void)
Geremia 0:75ec1b3cde17 269 {
Geremia 0:75ec1b3cde17 270 memset(buffer,0x00,LCDSIZE_X*LCDPAGES); // clear display buffer
Geremia 1:ff019d22b275 271 unsigned short setcolcmd = 0x0010 | ((col_offset&0xF)<<8) | (col_offset>>4);
Geremia 0:75ec1b3cde17 272 for(int page=0; page<LCDPAGES; page++)
Geremia 0:75ec1b3cde17 273 {
Geremia 1:ff019d22b275 274 // wr_cmd8((unsigned char)col_offset&0xF); // set column low nibble
Geremia 1:ff019d22b275 275 // wr_cmd8(0x10|(col_offset>>4)); // set column hi nibble
Geremia 1:ff019d22b275 276 wr_cmd16(setcolcmd);
Geremia 1:ff019d22b275 277 wr_cmd8(0xB0|(page+page_offset)); // set page
Geremia 1:ff019d22b275 278 wr_data16(0, LCDSIZE_X>>1); // send whole page pixels =0
Geremia 0:75ec1b3cde17 279 }
Geremia 0:75ec1b3cde17 280 }