SG12864A
Dependents: SG12864A_TestProgram
SG12864A.cpp
- Committer:
- shintamainjp
- Date:
- 2010-07-20
- Revision:
- 3:86e7fba29623
- Parent:
- 2:91c03e41c927
- Child:
- 4:200d1ea4e76e
File content as of revision 3:86e7fba29623:
/** * SG12864A Graphics LCD module driver class (Version 0.0.1) * * Copyright (C) 2010 Shinichiro Nakamura (CuBeatSystems) * http://shinta.main.jp/ */ #include "SG12864A.h" #define setPixel(x,y) buffer[((COLUMNS * 2)* ((y) / 8)) + (x)] |= (1 << ((y) % 8)) #define unsetPixel(x,y) buffer[((COLUMNS * 2)* ((y) / 8)) + (x)] &= ~(1 << ((y) % 8)) #define swap(a,b) {int c=a;a=b;b=c;} const uint8_t SG12864A::font5x7_data[] = { 0x00, 0x00, 0x00, 0x00, 0x00, // (white space) 0x00, 0x00, 0x5F, 0x00, 0x00, // ! 0x00, 0x07, 0x00, 0x07, 0x00, // " 0x14, 0x7F, 0x14, 0x7F, 0x14, // # 0x24, 0x2A, 0x7F, 0x2A, 0x12, // $ 0x23, 0x13, 0x08, 0x64, 0x62, // % 0x36, 0x49, 0x55, 0x22, 0x50, // & 0x00, 0x05, 0x03, 0x00, 0x00, // ' 0x00, 0x1C, 0x22, 0x41, 0x00, // ( 0x00, 0x41, 0x22, 0x1C, 0x00, // ) 0x08, 0x2A, 0x1C, 0x2A, 0x08, // * 0x08, 0x08, 0x3E, 0x08, 0x08, // + 0x00, 0x50, 0x30, 0x00, 0x00, // , 0x08, 0x08, 0x08, 0x08, 0x08, // - 0x00, 0x60, 0x60, 0x00, 0x00, // . 0x20, 0x10, 0x08, 0x04, 0x02, // / 0x3E, 0x51, 0x49, 0x45, 0x3E, // 0 0x00, 0x42, 0x7F, 0x40, 0x00, // 1 0x42, 0x61, 0x51, 0x49, 0x46, // 2 0x21, 0x41, 0x45, 0x4B, 0x31, // 3 0x18, 0x14, 0x12, 0x7F, 0x10, // 4 0x27, 0x45, 0x45, 0x45, 0x39, // 5 0x3C, 0x4A, 0x49, 0x49, 0x30, // 6 0x01, 0x71, 0x09, 0x05, 0x03, // 7 0x36, 0x49, 0x49, 0x49, 0x36, // 8 0x06, 0x49, 0x49, 0x29, 0x1E, // 9 0x00, 0x36, 0x36, 0x00, 0x00, // : 0x00, 0x56, 0x36, 0x00, 0x00, // ; 0x00, 0x08, 0x14, 0x22, 0x41, // < 0x14, 0x14, 0x14, 0x14, 0x14, // = 0x41, 0x22, 0x14, 0x08, 0x00, // > 0x02, 0x01, 0x51, 0x09, 0x06, // ? 0x32, 0x49, 0x79, 0x41, 0x3E, // @ 0x7E, 0x11, 0x11, 0x11, 0x7E, // A 0x7F, 0x49, 0x49, 0x49, 0x36, // B 0x3E, 0x41, 0x41, 0x41, 0x22, // C 0x7F, 0x41, 0x41, 0x22, 0x1C, // D 0x7F, 0x49, 0x49, 0x49, 0x41, // E 0x7F, 0x09, 0x09, 0x01, 0x01, // F 0x3E, 0x41, 0x41, 0x51, 0x32, // G 0x7F, 0x08, 0x08, 0x08, 0x7F, // H 0x00, 0x41, 0x7F, 0x41, 0x00, // I 0x20, 0x40, 0x41, 0x3F, 0x01, // J 0x7F, 0x08, 0x14, 0x22, 0x41, // K 0x7F, 0x40, 0x40, 0x40, 0x40, // L 0x7F, 0x02, 0x04, 0x02, 0x7F, // M 0x7F, 0x04, 0x08, 0x10, 0x7F, // N 0x3E, 0x41, 0x41, 0x41, 0x3E, // O 0x7F, 0x09, 0x09, 0x09, 0x06, // P 0x3E, 0x41, 0x51, 0x21, 0x5E, // Q 0x7F, 0x09, 0x19, 0x29, 0x46, // R 0x46, 0x49, 0x49, 0x49, 0x31, // S 0x01, 0x01, 0x7F, 0x01, 0x01, // T 0x3F, 0x40, 0x40, 0x40, 0x3F, // U 0x1F, 0x20, 0x40, 0x20, 0x1F, // V 0x7F, 0x20, 0x18, 0x20, 0x7F, // W 0x63, 0x14, 0x08, 0x14, 0x63, // X 0x03, 0x04, 0x78, 0x04, 0x03, // Y 0x61, 0x51, 0x49, 0x45, 0x43, // Z 0x00, 0x00, 0x7F, 0x41, 0x41, // [ 0x02, 0x04, 0x08, 0x10, 0x20, // / 0x41, 0x41, 0x7F, 0x00, 0x00, // ] 0x04, 0x02, 0x01, 0x02, 0x04, // ^ 0x40, 0x40, 0x40, 0x40, 0x40, // _ 0x00, 0x01, 0x02, 0x04, 0x00, // ` 0x20, 0x54, 0x54, 0x54, 0x78, // a 0x7F, 0x48, 0x44, 0x44, 0x38, // b 0x38, 0x44, 0x44, 0x44, 0x20, // c 0x38, 0x44, 0x44, 0x48, 0x7F, // d 0x38, 0x54, 0x54, 0x54, 0x18, // e 0x08, 0x7E, 0x09, 0x01, 0x02, // f 0x08, 0x14, 0x54, 0x54, 0x3C, // g 0x7F, 0x08, 0x04, 0x04, 0x78, // h 0x00, 0x44, 0x7D, 0x40, 0x00, // i 0x20, 0x40, 0x44, 0x3D, 0x00, // j 0x00, 0x7F, 0x10, 0x28, 0x44, // k 0x00, 0x41, 0x7F, 0x40, 0x00, // l 0x7C, 0x04, 0x18, 0x04, 0x78, // m 0x7C, 0x08, 0x04, 0x04, 0x78, // n 0x38, 0x44, 0x44, 0x44, 0x38, // o 0x7C, 0x14, 0x14, 0x14, 0x08, // p 0x08, 0x14, 0x14, 0x18, 0x7C, // q 0x7C, 0x08, 0x04, 0x04, 0x08, // r 0x48, 0x54, 0x54, 0x54, 0x20, // s 0x04, 0x3F, 0x44, 0x40, 0x20, // t 0x3C, 0x40, 0x40, 0x20, 0x7C, // u 0x1C, 0x20, 0x40, 0x20, 0x1C, // v 0x3C, 0x40, 0x30, 0x40, 0x3C, // w 0x44, 0x28, 0x10, 0x28, 0x44, // x 0x0C, 0x50, 0x50, 0x50, 0x3C, // y 0x44, 0x64, 0x54, 0x4C, 0x44, // z 0x00, 0x08, 0x36, 0x41, 0x00, // { 0x00, 0x00, 0x7F, 0x00, 0x00, // | 0x00, 0x41, 0x36, 0x08, 0x00, // } 0x08, 0x08, 0x2A, 0x1C, 0x08, // -> 0x08, 0x1C, 0x2A, 0x08, 0x08 // <- }; SG12864A::SG12864A(PinName di, PinName rw, PinName en, PinName db0, PinName db1, PinName db2, PinName db3, PinName db4, PinName db5, PinName db6, PinName db7, PinName cs1, PinName cs2, PinName res) : ioDI(di), ioRW(rw), ioEN(en), ioDB(db0, db1, db2, db3, db4, db5, db6, db7), ioCS1(cs1), ioCS2(cs2), ioRES(res) { bufferClear(); setDirectionToWrite(); } SG12864A::~SG12864A() { } void SG12864A::bufferPush(void) { for (uint8_t i = 0; i < PAGES; i++) { // CS1 setPageAddress(SG12864A::CS1, i); setColumnAddress(SG12864A::CS1, 0); for (uint8_t j = 0; j < COLUMNS; j++) { writeData(CS1, buffer[0 + ((COLUMNS * 2) * i) + j]); } // CS2 setPageAddress(SG12864A::CS2, i); setColumnAddress(SG12864A::CS2, 0); for (uint8_t j = 0; j < COLUMNS; j++) { writeData(CS2, buffer[COLUMNS + ((COLUMNS * 2) * i) + j]); } } } void SG12864A::bufferPull(void) { } void SG12864A::bufferClear(bool reverse) { for (int i = 0; i < sizeof(buffer); i++) { if (reverse) { buffer[i] = 0xFF; } else { buffer[i] = 0x00; } } } void SG12864A::bufferDrawLine(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2, bool reverse) { /* * Bresenham's line algorithm */ bool steep = abs(y2 - y1) > abs(x2 - x1); if (steep) { swap(x1, y1); swap(x2, y2); } if (x1 > x2) { swap(x1, x2); swap(y1, y2); } int deltax = x2 - x1; int deltay = abs(y2 - y1); int error = deltax / 2; int ystep; int y = y1; if (y1 < y2) { ystep = 1; } else { ystep = -1; } for (int x = x1; x <= x2; x++) { if (steep) { if (reverse) { unsetPixel(y, x); } else { setPixel(y, x); } } else { if (reverse) { unsetPixel(x, y); } else { setPixel(x, y); } } error = error - deltay; if (error < 0) { y = y + ystep; error = error + deltax; } } } void SG12864A::bufferDrawBox(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2, bool reverse) { for (int x = x1; x <= x2; x++) { if (reverse) { unsetPixel(x, y1); unsetPixel(x, y2); } else { setPixel(x, y1); setPixel(x, y2); } } for (int y = y1; y <= y2; y++) { if (reverse) { unsetPixel(x1, y); unsetPixel(x2, y); } else { setPixel(x1, y); setPixel(x2, y); } } } void SG12864A::bufferFillBox(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2, bool reverse) { for (int x = x1; x <= x2; x++) { for (int y = y1; y <= y2; y++) { if (reverse) { unsetPixel(x, y); } else { setPixel(x, y); } } } } void SG12864A::bufferDrawString(uint8_t x, uint8_t y, char * str, bool reverse) { char *p = str; int cnt = 0; while (*p) { bufferDrawChar(x + (FONT_X * cnt), y, *p, reverse); p++; cnt++; } } void SG12864A::bufferDrawChar(uint8_t x, uint8_t y, char c, bool reverse) { if ((FONT_MIN_CODE <= c) &&(c <= FONT_MAX_CODE)) { int aofs = (c - FONT_MIN_CODE) * FONT_X; for (int i = 0; i < FONT_X; i++) { uint8_t pat = font5x7_data[aofs + i]; for (int j = 0; j < FONT_Y; j++) { if (pat & (1 << j)) { if (reverse) { unsetPixel(x + i, y + j); } else { setPixel(x + i, y + j); } } else { if (reverse) { setPixel(x + i, y + j); } else { unsetPixel(x + i, y + j); } } } } } else { for (int i = 0; i < FONT_X; i++) { uint8_t pat = (i % 2) ? 0x55 : 0xAA; for (int j = 0; j < FONT_Y; j++) { if (pat & (1 << j)) { if (reverse) { unsetPixel(x + i, y + j); } else { setPixel(x + i, y + j); } } else { if (reverse) { setPixel(x + i, y + j); } else { unsetPixel(x + i, y + j); } } } } } } void SG12864A::bufferDrawCheckbox(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2, bool state, bool reverse) { bufferDrawBox(x1, y1, x2, y2, reverse); if (state) { bufferDrawLine(x1, y1, x2, y2, reverse); bufferDrawLine(x1, y2, x2, y1, reverse); } } void SG12864A::bufferDrawProgressbar(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2, int min, int max, int value, bool horizontal, bool reverse) { bufferDrawBox(x1, y1, x2, y2, reverse); if ((value < min) || (max < value)) { return; } int tmp_max = max - min; int tmp_val = value - min; int pix = ((x2 - x1) * tmp_val) / tmp_max; bufferFillBox(x1 + 1, y1 + 1, x1 + pix - 1, y2 - 1, reverse); } /** * High Level Interface. * * Reset display module. */ void SG12864A::reset(void) { reset(true); wait_ms(200); reset(false); wait_ms(200); setDisplayOnOff(SG12864A::CS1, true); setDisplayOnOff(SG12864A::CS2, true); setDisplayStartLine(SG12864A::CS1, 0); setDisplayStartLine(SG12864A::CS2, 0); setPageAddress(SG12864A::CS1, 0); setPageAddress(SG12864A::CS2, 0); setColumnAddress(SG12864A::CS1, 0); setColumnAddress(SG12864A::CS2, 0); } /** * High Level Interface. * * Clear display module. */ void SG12864A::clear(void) { for (uint8_t page = 0; page < PAGES; page++) { for (uint8_t column = 0; column < COLUMNS; column++) { // CS1 setPageAddress(SG12864A::CS1, page); setColumnAddress(SG12864A::CS1, column); writeData(CS1, 0x00); // CS2 setPageAddress(SG12864A::CS2, page); setColumnAddress(SG12864A::CS2, column); writeData(CS2, 0x00); } } // CS1 setPageAddress(SG12864A::CS1, 0); setColumnAddress(SG12864A::CS1, 0); writeData(CS1, 0x00); // CS2 setPageAddress(SG12864A::CS2, 0); setColumnAddress(SG12864A::CS2, 0); writeData(CS2, 0x00); } /** * Middle Level Interface. * * Set display on/off. * * @param t Target (CS1, CS2). * @param on ON/OFF (true, false). */ void SG12864A::setDisplayOnOff(Target t, bool on) { setDirectionToWrite(); uint8_t c = 0x3e | (on ? 0x01 : 0x00); write(t, SG12864A::Instruction, c); wait_us(1); } /** * Middle Level Interface. * * Set display start line. * * @param t Target (CS1, CS2). * @param addr Display start line (0-63). */ void SG12864A::setDisplayStartLine(Target t, uint8_t addr) { setDirectionToWrite(); uint8_t c = 0xc0 | (addr & 0x3f); write(t, SG12864A::Instruction, c); wait_us(1); } /** * Middle Level Interface. * * Set page address. * * @param t Target (CS1, CS2). * @param addr Page address(0-7). */ void SG12864A::setPageAddress(Target t, uint8_t addr) { setDirectionToWrite(); uint8_t c = 0xb8 | (addr & 0x07); write(t, SG12864A::Instruction, c); wait_us(1); } /** * Middle Level Interface. * * Set column address. * * @param t Target. (CS1, CS2) * @param addr Column address (0-63). */ void SG12864A::setColumnAddress(Target t, uint8_t addr) { setDirectionToWrite(); uint8_t c = 0x40 | (addr & 0x3f); write(t, SG12864A::Instruction, c); wait_us(1); } /** * Middle Level Interface. */ void SG12864A::readStatus(Target t, uint8_t *c) { setDirectionToRead(); read(t, SG12864A::Instruction, c); wait_us(1); } /** * Middle Level Interface. */ void SG12864A::writeData(Target t, uint8_t c) { setDirectionToWrite(); write(t, SG12864A::Data, c); wait_us(1); } /** * Middle Level Interface. */ void SG12864A::readData(Target t, uint8_t *c) { setDirectionToRead(); read(t, SG12864A::Data, c); wait_us(1); } /** * Low Level Interface. */ void SG12864A::setDirectionToRead() { ioDB.input(); ioRW = 1; } /** * Low Level Interface. */ void SG12864A::setDirectionToWrite() { ioDB.output(); ioRW = 0; } /** * Low Level Interface. */ void SG12864A::write(Target t, Mode m, uint8_t c) { switch (t) { case CS1: ioCS1 = 1; ioCS2 = 0; break; case CS2: ioCS1 = 0; ioCS2 = 1; break; } switch (m) { case Data: ioDI = 1; break; case Instruction: ioDI = 0; break; } ioDB = c; wait_us(1); ioEN = 1; wait_us(1); ioEN = 0; wait_us(5); } /** * Low Level Interface. */ void SG12864A::read(Target t, Mode m, uint8_t *c) { // TODO } /** * Low Level Interface. */ void SG12864A::reset(bool b) { if (b) { ioRES = 0; } else { ioRES = 1; } }