diff -r 219766126afb -r f1c85c2500f2 lib/unigraphic/SSD1322.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/lib/unigraphic/SSD1322.cpp Tue Sep 20 23:50:45 2016 +0200 @@ -0,0 +1,472 @@ +/* mbed UniGraphic library - Device specific class + * Copyright (c) 2015 Peter Drescher + * Released under the MIT License: http://mbed.org/license/mit + */ + +#include "platform.h" +#include "SSD1322.h" + +////////////////////////////////////////////////////////////////////////////////// +// display settings /////////////////////////////////////////////////////// +///////////////////////////////////////////////////////////////////////// + +#define IC_X_SEGS 480 // SSD1322 SEG has range 0-479 (479-0 if MX=1), check your datasheet, important for the orientation +#define IC_Y_COMS 128 // SSD1322 COM has range 0-127 (127-0 if MY=1), check your datasheet, important for the orientation +#define BPP 4 // SSD1322 has 16 gray levels + +#define SSD1322_CMD_ENABLE_GRAY_SCALE_TABLE 0x00 +#define SSD1322_CMD_SET_COLUMN_ADDR 0x15 +#define SSD1322_CMD_WRITE_RAM 0x5C +#define SSD1322_CMD_READ_RAM 0x5D +#define SSD1322_CMD_SET_ROW_ADDR 0x75 +#define SSD1322_CMD_SET_REMAP 0xA0 +#define SSD1322_CMD_SET_DISPLAY_START_LINE 0xA1 +#define SSD1322_CMD_SET_DISPLAY_OFFSET 0xA2 +#define SSD1322_CMD_SET_DISPLAY_MODE_OFF 0xA4 +#define SSD1322_CMD_SET_DISPLAY_MODE_ON 0xA5 +#define SSD1322_CMD_SET_DISPLAY_MODE_NORMAL 0xA6 +#define SSD1322_CMD_SET_DISPLAY_MODE_INVERSE 0xA7 +#define SSD1322_CMD_ENABLE_PARTIAL_DISPLAY 0xA8 +#define SSD1322_CMD_EXIT_PARTIAL_DISPLAY 0xA9 +#define SSD1322_CMD_SET_FUNCTION_SELECTION 0xAB +#define SSD1322_CMD_SET_DISPLAY_OFF 0xAE +#define SSD1322_CMD_SET_DISPLAY_ON 0xAF +#define SSD1322_CMD_SET_PHASE_LENGTH 0xB1 +#define SSD1322_CMD_SET_CLOCK_DIVIDER 0xB3 +#define SSD1322_CMD_DISPLAY_ENHANCEMENT 0xB4 +#define SSD1322_CMD_SET_GPIO 0xB5 +#define SSD1322_CMD_SET_SECOND_PRECHARGE_PERIOD 0xB6 +#define SSD1322_CMD_SET_GRAY_SCALE_TABLE 0xB8 +#define SSD1322_CMD_SET_DEFAULT_LINEAR_GRAY_SCALE_TABLE 0xB9 +#define SSD1322_CMD_SET_PRECHARGE_VOLTAGE 0xBB +#define SSD1322_CMD_SET_VCOMH_VOLTAGE 0xBE +#define SSD1322_CMD_SET_CONTRAST_CURRENT 0xC1 +#define SSD1322_CMD_MASTER_CURRENT_CONTROL 0xC7 +#define SSD1322_CMD_SET_MULTIPLEX_RATIO 0xCA +#define SSD1322_CMD_DISPLAY_ENHANCEMENT_B 0xD1 +#define SSD1322_CMD_SET_COMMAND_LOCK 0xFD + +// set for some OLED displays +//#define ALTERNATE_OLED_VERSION + + +static const uint8_t oledInit[] = { + SSD1322_CMD_SET_COMMAND_LOCK, 1, 0x12, /* Unlock OLED driver IC*/ + SSD1322_CMD_SET_DISPLAY_OFF, 0, + SSD1322_CMD_SET_CLOCK_DIVIDER, 1, 0x91, + SSD1322_CMD_SET_MULTIPLEX_RATIO, 1, 0x3F, /*duty = 1/64*,64 COMS are enabled*/ + SSD1322_CMD_SET_DISPLAY_OFFSET, 1, 0x00, + SSD1322_CMD_SET_DISPLAY_START_LINE, 1, 0x00, /*set start line position*/ + SSD1322_CMD_SET_REMAP, 2, 0x14, // Horizontal address increment, + // Disable Column Address Re-map, + // Enable Nibble Re-map,Scan from COM[N-1] to COM0, + // Disable COM Split Odd Even + 0x11, // Enable Dual COM mode + SSD1322_CMD_SET_GPIO, 1, 0x00, + SSD1322_CMD_SET_FUNCTION_SELECTION, 1, 0x01, /* selection external VDD */ + SSD1322_CMD_DISPLAY_ENHANCEMENT, 2, 0xA0, /* enables the external VSL*/ + 0xfd, /* 0xfd,Enhanced low GS display quality;default is 0xb5(normal),*/ + SSD1322_CMD_SET_CONTRAST_CURRENT, 1, 0xff, /* default is 0x7f*/ + SSD1322_CMD_MASTER_CURRENT_CONTROL, 1, 0x0f, + /* writeCommand(0xB9); GRAY TABLE,linear Gray Scale*/ + SSD1322_CMD_SET_PHASE_LENGTH, 1, 0xE2, /*default is 0x74*/ + SSD1322_CMD_DISPLAY_ENHANCEMENT_B, 2, 0x82, 0x20, +#ifdef ALTERNATE_OLED_VERSION + SSD1322_CMD_SET_PRECHARGE_VOLTAGE, 1, 0x08, /* 0.3xVcc */ + SSD1322_CMD_SET_SECOND_PRECHARGE_PERIOD, 1, 0x0F, /* 15 clocks */ +#else + SSD1322_CMD_SET_PRECHARGE_VOLTAGE, 1, 0x1F, /* 0.6xVcc */ + SSD1322_CMD_SET_SECOND_PRECHARGE_PERIOD, 1, 0x08, /* default */ +#endif + SSD1322_CMD_SET_VCOMH_VOLTAGE, 1, 0x07, /*0.86xVcc;default is 0x04*/ + SSD1322_CMD_SET_DISPLAY_MODE_NORMAL, 0, + SSD1322_CMD_SET_DISPLAY_ON, 0 +}; + + +//////////////////////////////////////////////////////////////////////////////////////// +//////////////////////////////////////////////////////////////////////////////////////// +//////////////////////////////////////////////////////////////////////////////////////// + + +//#include "mbed_debug.h" + +#define SWAP(a, b) { a ^= b; b ^= a; a ^= b; } + + +SSD1322::SSD1322(proto_t displayproto, + int Hz, PinName mosi, PinName miso, PinName sclk, PinName CS, PinName reset, PinName DC, + const char *name, + const unsigned int lcdsize_x, const unsigned int lcdsize_y) + : GraphicsDisplay(name), + screensize_X(lcdsize_x), screensize_Y(lcdsize_y), + _BPP(BPP), _PAGES(lcdsize_y/8*BPP), + _IC_X_SEGS(IC_X_SEGS), _IC_Y_COMS(IC_Y_COMS), _IC_PAGES(IC_Y_COMS/8*BPP) +{ + proto = new SPI8(Hz, mosi, miso, sclk, CS, reset, DC); + buffer = (unsigned char*) malloc (screensize_X*_PAGES); + set_auto_up(false); + foreground(0xFFFF); + background(0x0000); + hw_reset(); + bus_enable(true); + init(); + set_orientation(1); + cls(); + locate(0,0); +} + +SSD1322::~SSD1322() +{ + free(buffer); +} + +void SSD1322::wr_cmd8(unsigned char cmd) +{ + proto->wr_cmd8(cmd); +} + +void SSD1322::wr_data8(unsigned char data) +{ + proto->wr_data8(data); +} + +void SSD1322::wr_cmd16(unsigned short cmd) +{ + proto->wr_cmd16(cmd); +} + +void SSD1322::wr_gram(unsigned short data, unsigned int count) +{ + proto->wr_gram(data, count); +} + +void SSD1322::wr_grambuf(unsigned short* data, unsigned int lenght) +{ + proto->wr_grambuf(data, lenght); +} + +void SSD1322::hw_reset() +{ + proto->hw_reset(); +} + +void SSD1322::bus_enable(bool enable) +{ + proto->BusEnable(enable); +} + + + +// monochrome SSD1322 driver ICs does not have ram rotate in hw (swap raw<->columns) like TFT displays +// for portrait views, XY swap will be done in sw in pixel() function +void SSD1322::set_orientation(int o) +{ + orientation = o; + if (o & 0x01) { + set_width(screensize_X); + set_height(screensize_Y); + } else { + set_width(screensize_Y); + set_height(screensize_X); + } + switch (o) { + case (0):// portrait view -90° + mirrorXY(Y); + break; + case (1): // default, landscape view 0° + mirrorXY(NONE); + break; + case (2):// portrait view +90° + mirrorXY(X); + break; + case (3):// landscape view +180° + mirrorXY(XY); + break; + } +} + +void SSD1322::mirrorXY(mirror_t mode) +{ + // Horizontal address increment, + // Disable Column Address Re-map, + // Enable Nibble Re-map,Scan from COM[N-1] to COM0, + // Disable COM Split Odd Even + // Enable Dual COM mode + unsigned char d; + switch (mode) + { + case(NONE): + d = 0x14; + break; + case(X): + d = 0x10; + break; + case(Y): + d = 0x16; + break; + case(XY): + d = 0x12; + break; + } + wr_cmd8(SSD1322_CMD_SET_REMAP); + wr_data8(d); + wr_data8(0x11); +} + +void SSD1322::invert(unsigned char o) +{ + if(o == 0) wr_cmd8(0xA6); + else wr_cmd8(0xA7); +} + +void SSD1322::set_contrast(int o) +{ + contrast = o; + + wr_cmd8(SSD1322_CMD_SET_CONTRAST_CURRENT); + wr_data8(o&0xFF); +} + +int SSD1322::get_contrast(void) +{ + return(contrast); +} +void SSD1322::window(int x, int y, int w, int h) { + // current pixel location + cur_x = x; + cur_y = y; + // window settings + win_x1 = x; + win_x2 = x + w - 1; + win_y1 = y; + win_y2 = y + h - 1; +} +void SSD1322::window_pushpixel(unsigned short color) { + pixel(cur_x, cur_y, color); + cur_x++; + if(cur_x > win_x2) { + cur_x = win_x1; + cur_y++; + if(cur_y > win_y2) { + cur_y = win_y1; + } + } +} +void SSD1322::window_pushpixel(unsigned short color, unsigned int count) { + while(count) + { + pixel(cur_x, cur_y, color); + cur_x++; + if(cur_x > win_x2) + { + cur_x = win_x1; + cur_y++; + if(cur_y > win_y2) + { + cur_y = win_y1; + } + } + count--; + } +} +void SSD1322::window_pushpixelbuf(unsigned short* color, unsigned int lenght) { + while(lenght) + { + pixel(cur_x, cur_y, *color++); + cur_x++; + if(cur_x > win_x2) + { + cur_x = win_x1; + cur_y++; + if(cur_y > win_y2) + { + cur_y = win_y1; + } + } + lenght--; + } +} + +unsigned short SSD1322::pixelpos(int x, int y) +{ + if(!(orientation&1)) SWAP(x,y); + // first check parameter + if((x >= screensize_X) || (y >= screensize_Y)) return 0; + + unsigned short page = y * _BPP / 8; + return (x + page*screensize_X); +} + +void SSD1322::pixel(int x, int y, unsigned short color) +{ + if(!(orientation&1)) SWAP(x,y); + // first check parameter + if((x >= screensize_X) || (y >= screensize_Y)) return; + + /* + unsigned short page = y * _BPP / 8; + unsigned char pos = y & ((8 / _BPP) - 1); // position in page + unsigned char mask = (( 1 << _BPP) - 1); + + buffer[(x + page*screensize_X)] = (buffer[(x + page*screensize_X)] & ~(mask<<(pos*_BPP))) | ((color&mask)<<(pos*_BPP)); + */ + + unsigned char cval = buffer[(y*128) + x/2]; + if (x&1) { + cval = (cval & 0xF0) | (color & 0x0F); + } else { + cval = (cval & 0x0F) | (color & 0x0F)<<4; + } + buffer[(y*128) + x/2] = cval; +} + +unsigned short SSD1322::pixelread(int x, int y) +{ + if(!(orientation&1)) SWAP(x,y); + // first check parameter + if((x >= screensize_X) || (y >= screensize_Y)) return 0; + + unsigned short page = y * _BPP / 8; + unsigned char pos = y & ((8 / _BPP) - 1); // position in page + unsigned char mask = (( 1 << _BPP) - 1); + + //FAUX + return (buffer[(x + page*screensize_X)]); // = (buffer[(x + page*screensize_X)] & ~(mask<<(pos*_BPP))) | ((color&mask)<<(pos*_BPP)); +} + + + +// Set row address 0~32 +void SSD1322::set_row_address(unsigned char add) +{ + wr_cmd8(SSD1322_CMD_SET_ROW_ADDR); + add &= 0x3F; + wr_data8(add); + wr_data8(0x3F); +} + +// Set col address 0~64 for Gray mode) +void SSD1322::set_column_address(unsigned char add) +{ + wr_cmd8(SSD1322_CMD_SET_COLUMN_ADDR); + add &= 0x3F; + wr_data8(0x1c+add); // where does this 0x1C (28) comes from??? + wr_data8(0x5b); // this 0x5B (91) seems 28+64 (-1) +} + +void SSD1322::copy_to_lcd(void) +{ + unsigned int i; + unsigned char x, y; + + set_row_address(0); + set_column_address(0); + + i = 0; + wr_cmd8(SSD1322_CMD_WRITE_RAM); + for(y=0; y<64; y++) + for(x=0; x<128; x++) + wr_data8(buffer[i++]); +} + +unsigned long SSD1322::buffaddr(unsigned int i) +{ + return (unsigned long) &(buffer[i]); +} + +void SSD1322::clrbuff(const unsigned char value) +{ + memset(buffer, value, screensize_X*_PAGES); +} + +void SSD1322::fills(const unsigned char value) +{ +clrbuff(value); +copy_to_lcd(); +} + +void SSD1322::cls(void) +{ +clrbuff(); +copy_to_lcd(); +} + +//void ll_fill(const unsigned char value=0xFF, const unsigned char w=0x78, const unsigned char=0x80); +void SSD1322::ll_fill(const unsigned char value, const unsigned char w, const unsigned char h) +{ + unsigned short x,y; + //w = 0x78; // 120 x 2px by byte => 240px + //h = 0x80; // 0x80 for 64 rows because 2 COMs mode + + wr_cmd8(0x15); // COL ADDR + wr_data8(0x00); + wr_data8(w-1); + + wr_cmd8(0x75); // ROW ADDR + wr_data8(0x00); + wr_data8(h-1); + + wr_cmd8(0x5C); // WRITE RAM + for(y=0; y= 64) + loop_pos = 0; + set_row_address(loop_pos); + set_column_address(0); + wr_cmd8(SSD1322_CMD_WRITE_RAM); + + for(uint8_t i=0; i<128; i++) + wr_data8(buffer[loop_pos*64+i]); +} + +void SSD1322::start_loop(float tick) { + loop_pos = 0; + bah.attach(this, &SSD1322::loop_event, tick); +} + +void SSD1322::stop_loop() { + bah.detach(); +}