Tasmota/tasmota/xdsp_06_epaper_42.ino

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/*
xdsp_05_epaper.ino - Display e-paper support for Tasmota
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Copyright (C) 2019 Theo Arends, Gerhard Mutz and Waveshare
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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/>.
*/
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#ifdef USE_SPI
#ifdef USE_DISPLAY
#ifdef USE_DISPLAY_EPAPER_42
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#define XDSP_06 6
#define COLORED42 1
#define UNCOLORED42 0
// using font 8 is opional (num=3)
// very badly readable, but may be useful for graphs
#define USE_TINY_FONT
#include <epd4in2.h>
#include <epdpaint.h>
extern uint8_t *buffer;
Epd42 *epd42;
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/*********************************************************************************************/
void EpdInitDriver42()
{
if (!Settings.display_model) {
Settings.display_model = XDSP_06;
}
if (XDSP_06 == Settings.display_model) {
if (Settings.display_width != EPD_WIDTH42) {
Settings.display_width = EPD_WIDTH42;
}
if (Settings.display_height != EPD_HEIGHT42) {
Settings.display_height = EPD_HEIGHT42;
}
// allocate screen buffer
if (buffer) free(buffer);
buffer=(unsigned char*)calloc((EPD_WIDTH42 * EPD_HEIGHT42) / 8,1);
if (!buffer) return;
// init renderer
epd42 = new Epd42(EPD_WIDTH42,EPD_HEIGHT42);
#ifdef USE_SPI
if ((pin[GPIO_SSPI_CS]<99) && (pin[GPIO_SSPI_MOSI]<99) && (pin[GPIO_SSPI_SCLK]<99)) {
epd42->Begin(pin[GPIO_SSPI_CS],pin[GPIO_SSPI_MOSI],pin[GPIO_SSPI_SCLK]);
} else {
free(buffer);
return;
}
#else
if ((pin[GPIO_SPI_CS]<99) && (pin[GPIO_SPI_MOSI]<99) && (pin[GPIO_SPI_CLK]<99)) {
epd42->Begin(pin[GPIO_SPI_CS],pin[GPIO_SPI_MOSI],pin[GPIO_SPI_CLK]);
} else {
free(buffer);
return;
}
#endif
renderer = epd42;
epd42->Init();
renderer->fillScreen(0);
// whiten display with full update, takes 4 seconds
epd42->Init(DISPLAY_INIT_FULL);
renderer->DisplayInit(DISPLAY_INIT_MODE,Settings.display_size,Settings.display_rotate,Settings.display_font);
epd42->ClearFrame();
renderer->Updateframe();
delay(3000);
renderer->setTextColor(1,0);
#ifdef SHOW_SPLASH
// Welcome text
renderer->setTextFont(2);
renderer->DrawStringAt(50, 140, "Waveshare E-Paper!", COLORED42,0);
renderer->Updateframe();
delay(350);
renderer->fillScreen(0);
#endif
}
}
/*********************************************************************************************/
/*********************************************************************************************/
#ifdef USE_DISPLAY_MODES1TO5
void EpdRefresh42() // Every second
{
if (Settings.display_mode) { // Mode 0 is User text
}
}
#endif // USE_DISPLAY_MODES1TO5
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/*********************************************************************************************\
* Interface
\*********************************************************************************************/
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bool Xdsp06(uint8_t function)
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{
bool result = false;
if (FUNC_DISPLAY_INIT_DRIVER == function) {
EpdInitDriver42();
}
else if (XDSP_06 == Settings.display_model) {
switch (function) {
case FUNC_DISPLAY_MODEL:
result = true;
break;
#ifdef USE_DISPLAY_MODES1TO5
case FUNC_DISPLAY_EVERY_SECOND:
EpdRefresh42();
break;
#endif // USE_DISPLAY_MODES1TO5
}
}
return result;
}
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#endif // USE_DISPLAY_EPAPER42
#endif // USE_DISPLAY
#endif // USE_SPI