mirror of https://github.com/arendst/Tasmota.git
281 lines
7.7 KiB
C++
281 lines
7.7 KiB
C++
/*
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xdsp_02_ssd1306.ino - Display Oled ssd1306 support for Sonoff-Tasmota
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Copyright (C) 2018 Theo Arends and Adafruit
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifdef USE_I2C
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#ifdef USE_DISPLAY
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#ifdef USE_DISPLAY_SSD1306
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#define XDSP_02 2
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#define OLED_ADDRESS1 0x3C // Oled 128x32 I2C address
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#define OLED_ADDRESS2 0x3D // Oled 128x64 I2C address
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#define OLED_FONT_WIDTH 6
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#define OLED_FONT_HEIGTH 8
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//#define OLED_BUFFER_COLS 21 or 11 // Max number of columns in display shadow buffer
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//#define OLED_BUFFER_ROWS 8 or 16 // Max number of lines in display shadow buffer
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#include <Wire.h>
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#include <Adafruit_GFX.h>
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#include <Adafruit_SSD1306.h>
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Adafruit_SSD1306 *oled;
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uint8_t ssd1306_font_x = OLED_FONT_WIDTH;
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uint8_t ssd1306_font_y = OLED_FONT_HEIGTH;
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/*********************************************************************************************/
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void Ssd1306InitMode()
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{
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oled->setRotation(Settings.display_rotate); // 0
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oled->invertDisplay(false);
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oled->clearDisplay();
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oled->setTextWrap(false); // Allow text to run off edges
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oled->cp437(true);
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oled->setTextSize(Settings.display_size);
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oled->setTextColor(WHITE);
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oled->setCursor(0,0);
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oled->display();
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}
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void Ssd1306Init(uint8_t mode)
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{
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switch(mode) {
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case DISPLAY_INIT_MODE:
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Ssd1306InitMode();
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#ifdef USE_DISPLAY_MODES1TO5
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DisplayClearScreenBuffer();
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#endif // USE_DISPLAY_MODES1TO5
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break;
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case DISPLAY_INIT_PARTIAL:
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case DISPLAY_INIT_FULL:
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break;
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}
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}
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void Ssd1306InitDriver()
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{
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if (!Settings.display_model) {
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if (I2cDevice(OLED_ADDRESS1)) {
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Settings.display_address[0] = OLED_ADDRESS1;
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Settings.display_model = XDSP_02;
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}
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else if (I2cDevice(OLED_ADDRESS2)) {
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Settings.display_address[0] = OLED_ADDRESS2;
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Settings.display_model = XDSP_02;
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}
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}
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if (XDSP_02 == Settings.display_model) {
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oled = new Adafruit_SSD1306();
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oled->begin(SSD1306_SWITCHCAPVCC, Settings.display_address[0]);
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#ifdef USE_DISPLAY_MODES1TO5
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DisplayAllocScreenBuffer();
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#endif // USE_DISPLAY_MODES1TO5
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Ssd1306InitMode();
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}
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}
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void Ssd1306Clear()
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{
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oled->clearDisplay();
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oled->setCursor(0, 0);
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oled->display();
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}
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void Ssd1306DrawStringAt(uint16_t x, uint16_t y, char *str, uint16_t color, uint8_t flag)
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{
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if (!flag) {
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oled->setCursor(x, y);
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} else {
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oled->setCursor((x-1) * ssd1306_font_x * Settings.display_size, (y-1) * ssd1306_font_y * Settings.display_size);
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}
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oled->println(str);
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}
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void Ssd1306DisplayOnOff(uint8_t on)
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{
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if (on) {
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oled->ssd1306_command(SSD1306_DISPLAYON);
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} else {
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oled->ssd1306_command(SSD1306_DISPLAYOFF);
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}
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}
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void Ssd1306OnOff()
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{
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Ssd1306DisplayOnOff(disp_power);
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oled->display();
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}
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/*********************************************************************************************/
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#ifdef USE_DISPLAY_MODES1TO5
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void Ssd1306PrintLog()
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{
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disp_refresh--;
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if (!disp_refresh) {
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disp_refresh = Settings.display_refresh;
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if (!disp_screen_buffer_cols) { DisplayAllocScreenBuffer(); }
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char* txt = DisplayLogBuffer('\370');
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if (txt != NULL) {
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uint8_t last_row = Settings.display_rows -1;
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oled->clearDisplay();
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oled->setTextSize(Settings.display_size);
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oled->setCursor(0,0);
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for (byte i = 0; i < last_row; i++) {
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strlcpy(disp_screen_buffer[i], disp_screen_buffer[i +1], disp_screen_buffer_cols);
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oled->println(disp_screen_buffer[i]);
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}
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strlcpy(disp_screen_buffer[last_row], txt, disp_screen_buffer_cols);
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DisplayFillScreen(last_row);
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snprintf_P(log_data, sizeof(log_data), PSTR(D_LOG_DEBUG "[%s]"), disp_screen_buffer[last_row]);
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AddLog(LOG_LEVEL_DEBUG);
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oled->println(disp_screen_buffer[last_row]);
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oled->display();
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}
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}
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}
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void Ssd1306Time()
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{
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char line[12];
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oled->clearDisplay();
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oled->setTextSize(2);
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oled->setCursor(0, 0);
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snprintf_P(line, sizeof(line), PSTR(" %02d" D_HOUR_MINUTE_SEPARATOR "%02d" D_MINUTE_SECOND_SEPARATOR "%02d"), RtcTime.hour, RtcTime.minute, RtcTime.second); // [ 12:34:56 ]
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oled->println(line);
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snprintf_P(line, sizeof(line), PSTR("%02d" D_MONTH_DAY_SEPARATOR "%02d" D_YEAR_MONTH_SEPARATOR "%04d"), RtcTime.day_of_month, RtcTime.month, RtcTime.year); // [01-02-2018]
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oled->println(line);
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oled->display();
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}
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void Ssd1306Refresh() // Every second
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{
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if (Settings.display_mode) { // Mode 0 is User text
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switch (Settings.display_mode) {
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case 1: // Time
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Ssd1306Time();
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break;
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case 2: // Local
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case 3: // Local
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case 4: // Mqtt
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case 5: // Mqtt
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Ssd1306PrintLog();
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break;
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}
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}
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}
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#endif // USE_DISPLAY_MODES1TO5
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/*********************************************************************************************\
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* Interface
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\*********************************************************************************************/
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boolean Xdsp02(byte function)
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{
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boolean result = false;
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if (i2c_flg) {
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if (FUNC_DISPLAY_INIT_DRIVER == function) {
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Ssd1306InitDriver();
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}
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else if (XDSP_02 == Settings.display_model) {
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if (!dsp_color) { dsp_color = WHITE; }
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switch (function) {
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case FUNC_DISPLAY_MODEL:
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result = true;
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break;
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case FUNC_DISPLAY_INIT:
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Ssd1306Init(dsp_init);
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break;
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case FUNC_DISPLAY_POWER:
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Ssd1306OnOff();
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break;
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case FUNC_DISPLAY_CLEAR:
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Ssd1306Clear();
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break;
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case FUNC_DISPLAY_DRAW_HLINE:
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oled->writeFastHLine(dsp_x, dsp_y, dsp_len, dsp_color);
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break;
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case FUNC_DISPLAY_DRAW_VLINE:
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oled->writeFastVLine(dsp_x, dsp_y, dsp_len, dsp_color);
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break;
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case FUNC_DISPLAY_DRAW_LINE:
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oled->writeLine(dsp_x, dsp_y, dsp_x2, dsp_y2, dsp_color);
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break;
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case FUNC_DISPLAY_DRAW_CIRCLE:
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oled->drawCircle(dsp_x, dsp_y, dsp_rad, dsp_color);
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break;
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case FUNC_DISPLAY_FILL_CIRCLE:
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oled->fillCircle(dsp_x, dsp_y, dsp_rad, dsp_color);
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break;
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case FUNC_DISPLAY_DRAW_RECTANGLE:
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oled->drawRect(dsp_x, dsp_y, dsp_x2, dsp_y2, dsp_color);
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break;
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case FUNC_DISPLAY_FILL_RECTANGLE:
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oled->fillRect(dsp_x, dsp_y, dsp_x2, dsp_y2, dsp_color);
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break;
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case FUNC_DISPLAY_DRAW_FRAME:
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oled->display();
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break;
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case FUNC_DISPLAY_TEXT_SIZE:
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oled->setTextSize(Settings.display_size);
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break;
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case FUNC_DISPLAY_FONT_SIZE:
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// oled->setTextSize(Settings.display_font);
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break;
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case FUNC_DISPLAY_DRAW_STRING:
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Ssd1306DrawStringAt(dsp_x, dsp_y, dsp_str, dsp_color, dsp_flag);
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break;
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case FUNC_DISPLAY_ONOFF:
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Ssd1306DisplayOnOff(dsp_on);
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break;
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case FUNC_DISPLAY_ROTATION:
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oled->setRotation(Settings.display_rotate);
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break;
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#ifdef USE_DISPLAY_MODES1TO5
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case FUNC_DISPLAY_EVERY_SECOND:
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Ssd1306Refresh();
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break;
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#endif // USE_DISPLAY_MODES1TO5
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}
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}
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}
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return result;
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}
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#endif // USE_DISPLAY_SSD1306
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#endif // USE_DISPLAY
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#endif // USE_I2C
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