Tasmota/tasmota/xdsp_14_SSD1331.ino

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/*
xdsp_14_SSD1331.ino - Display SSD1331 support for Tasmota
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Copyright (C) 2021 Jeroen Vermeulen, Gerhard Mutz and Theo Arends
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifdef USE_SPI
#ifdef USE_DISPLAY
#ifdef USE_DISPLAY_SSD1331
#define XDSP_14 14
#define COLORED 1
#define UNCOLORED 0
#define USE_TINY_FONT
#define SSD1331_BLACK 0x0000 // 0, 0, 0
#define SSD1331_WHITE 0xFFFF // 255, 255, 255
#define SSD1331_RED 0xF800 // 255, 0, 0
#define SSD1331_BLUE 0x001F // 0, 0, 255
#include <Adafruit_SSD1331.h>
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#include <SPI.h>
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bool ssd1331_init_done = false;
extern uint8_t *buffer;
extern uint8_t color_type;
Adafruit_SSD1331 *ssd1331;
/*********************************************************************************************/
void SSD1331_InitDriver() {
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if (PinUsed(GPIO_SSD1331_CS) && PinUsed(GPIO_SSD1331_DC) &&
((TasmotaGlobal.soft_spi_enabled & SPI_MOSI) || (TasmotaGlobal.spi_enabled & SPI_MOSI))) {
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Settings.display_model = XDSP_14;
if (Settings.display_width != Adafruit_SSD1331::TFTWIDTH) {
Settings.display_width = Adafruit_SSD1331::TFTWIDTH;
}
if (Settings.display_height != Adafruit_SSD1331::TFTHEIGHT) {
Settings.display_height = Adafruit_SSD1331::TFTHEIGHT;
}
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buffer = 0;
// default colors
fg_color = SSD1331_WHITE;
bg_color = SSD1331_BLACK;
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int8_t reset = -1;
if (PinUsed(GPIO_OLED_RESET)) {
reset = Pin(GPIO_OLED_RESET);
}
// init renderer
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if (TasmotaGlobal.soft_spi_enabled) {
ssd1331 = new Adafruit_SSD1331(Pin(GPIO_SSD1331_CS), Pin(GPIO_SSD1331_DC), Pin(GPIO_SSPI_MOSI), Pin(GPIO_SSPI_SCLK), reset);
}
else if (TasmotaGlobal.spi_enabled) {
ssd1331 = new Adafruit_SSD1331(&SPI, Pin(GPIO_SSD1331_CS), Pin(GPIO_SSD1331_DC), reset);
}
delay(100);
ssd1331->begin();
renderer = ssd1331;
// Rotation is currently broken, https://github.com/adafruit/Adafruit-SSD1331-OLED-Driver-Library-for-Arduino/issues/26
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renderer->DisplayInit(DISPLAY_INIT_MODE, Settings.display_size, Settings.display_rotate, Settings.display_font);
renderer->dim(Settings.display_dimmer);
#ifdef SHOW_SPLASH
// Welcome text
renderer->clearDisplay();
renderer->setTextFont(1);
renderer->DrawStringAt(24, 27, "SSD1331", SSD1331_RED, 0);
delay(1000);
#endif
color_type = COLOR_COLOR;
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ssd1331_init_done = true;
AddLog_P(LOG_LEVEL_INFO, PSTR("DSP: SSD1331"));
}
}
#ifdef USE_DISPLAY_MODES1TO5
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void SSD1331PrintLog(bool withDateTime) {
disp_refresh--;
if (!disp_refresh) {
disp_refresh = Settings.display_refresh;
if (!disp_screen_buffer_cols) { DisplayAllocScreenBuffer(); }
char* txt = DisplayLogBuffer('\370');
if (txt != NULL) {
uint8_t last_row = Settings.display_rows -1;
renderer->clearDisplay();
renderer->setCursor(0,0);
if (withDateTime) {
char line[17];
snprintf_P(line, sizeof(line), PSTR("%02d" D_HOUR_MINUTE_SEPARATOR "%02d %02d" D_MONTH_DAY_SEPARATOR "%02d" D_YEAR_MONTH_SEPARATOR "%04d"), RtcTime.hour, RtcTime.minute, RtcTime.day_of_month, RtcTime.month, RtcTime.year); // [12:34 01-02-2018]
renderer->setTextColor(SSD1331_BLUE);
renderer->println(line);
renderer->setTextColor(fg_color);
last_row--;
}
for (byte i = 0; i < last_row; i++) {
strlcpy(disp_screen_buffer[i], disp_screen_buffer[i +1], disp_screen_buffer_cols);
renderer->println(disp_screen_buffer[i]);
}
strlcpy(disp_screen_buffer[last_row], txt, disp_screen_buffer_cols);
DisplayFillScreen(last_row);
AddLog_P(LOG_LEVEL_DEBUG, PSTR(D_LOG_DEBUG "[%s]"), disp_screen_buffer[last_row]);
renderer->println(disp_screen_buffer[last_row]);
renderer->Updateframe();
}
}
}
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void SSD1331Time(void) {
char line[12];
renderer->clearDisplay();
renderer->setCursor(0, 0);
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 ]
renderer->println(line);
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]
renderer->println(line);
renderer->Updateframe();
}
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void SSD1331Refresh(void) { // Every second
if (Settings.display_mode) { // Mode 0 is User text
switch (Settings.display_mode) {
case 1: // Time
SSD1331Time();
break;
case 2: // Local
case 4: // Mqtt
SSD1331PrintLog(false);
break;
case 3: // Local + Time
case 5: // Mqtt + Time
SSD1331PrintLog(true);
break;
}
}
}
#endif // USE_DISPLAY_MODES1TO5
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/*********************************************************************************************\
* Interface
\*********************************************************************************************/
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bool Xdsp14(uint8_t function) {
bool result = false;
if (FUNC_DISPLAY_INIT_DRIVER == function) {
SSD1331_InitDriver();
}
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else if (ssd1331_init_done && (XDSP_14 == Settings.display_model)) {
switch (function) {
case FUNC_DISPLAY_MODEL:
result = true;
break;
#ifdef USE_DISPLAY_MODES1TO5
case FUNC_DISPLAY_EVERY_SECOND:
SSD1331Refresh();
break;
#endif // USE_DISPLAY_MODES1TO5
}
}
return result;
}
#endif // USE_DISPLAY_SSD1331
#endif // USE_DISPLAY
#endif // USE_SPI