Tasmota/tasmota/xdsp_12_ST7789.ino

208 lines
5.4 KiB
C++

/*
xdsp_12_ST7789.ino - Display ST7789 support for Tasmota
Copyright (C) 2021 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_SPI
#ifdef USE_DISPLAY
#ifdef USE_DISPLAY_ST7789
#define XDSP_12 12
#define XI2C_38 38 // See I2CDEVICES.md
#undef COLORED
#define COLORED 1
#undef UNCOLORED
#define UNCOLORED 0
// touch panel controller
#undef FT5206_address
#define FT5206_address 0x38
// using font 8 is opional (num=3)
// very badly readable, but may be useful for graphs
#undef USE_TINY_FONT
#define USE_TINY_FONT
#include <Arduino_ST7789.h>
#include <FT5206.h>
// currently fixed
#define BACKPLANE_PIN 2
#ifdef USE_LANBON_L8
#undef BACKPLANE_PIN
#define BACKPLANE_PIN 5
#endif // USE_LANBON_L8
extern uint8_t color_type;
Arduino_ST7789 *st7789;
#ifdef USE_FT5206
uint8_t st7789_ctouch_counter = 0;
#endif // USE_FT5206
bool st7789_init_done = false;
/*********************************************************************************************/
void ST7789_InitDriver(void) {
if (PinUsed(GPIO_ST7789_DC) && // This device does not need CS which breaks SPI bus usage
((TasmotaGlobal.soft_spi_enabled & SPI_MOSI) || (TasmotaGlobal.spi_enabled & SPI_MOSI))) {
Settings->display_model = XDSP_12;
if (!Settings->display_width) {
Settings->display_width = 240;
}
if (!Settings->display_height) {
Settings->display_height = 240;
}
// default colors
fg_color = ST7789_WHITE;
bg_color = ST7789_BLACK;
int8_t bppin = BACKPLANE_PIN;
if (PinUsed(GPIO_BACKLIGHT)) {
bppin = Pin(GPIO_BACKLIGHT);
}
// init renderer, may use hardware spi
if (TasmotaGlobal.soft_spi_enabled) {
st7789 = new Arduino_ST7789(Pin(GPIO_ST7789_DC), Pin(GPIO_OLED_RESET), Pin(GPIO_SSPI_MOSI), Pin(GPIO_SSPI_SCLK), Pin(GPIO_ST7789_CS), bppin);
}
else if (TasmotaGlobal.spi_enabled) {
st7789 = new Arduino_ST7789(Pin(GPIO_ST7789_DC), Pin(GPIO_OLED_RESET), Pin(GPIO_ST7789_CS), bppin);
}
st7789->init(Settings->display_width,Settings->display_height);
renderer = st7789;
renderer->DisplayInit(DISPLAY_INIT_MODE,Settings->display_size,Settings->display_rotate,Settings->display_font);
renderer->dim(GetDisplayDimmer16());
#ifdef SHOW_SPLASH
// Welcome text
renderer->setTextColor(ST7789_WHITE,ST7789_BLACK);
renderer->setTextFont(2);
renderer->DrawStringAt(30, (Settings->display_height-12)/2, "ST7789 TFT!", ST7789_WHITE,0);
delay(1000);
#endif
color_type = COLOR_COLOR;
#ifdef ESP32
#ifdef USE_FT5206
// start digitizer with fixed adress and pins for esp32
#undef SDA_2
#undef SCL_2
#define SDA_2 23
#define SCL_2 32
#ifdef USE_LANBON_L8
#undef SDA_2
#undef SCL_2
#define SDA_2 4
#define SCL_2 0
#endif // USE_LANBON_L8
Wire1.begin(SDA_2, SCL_2, (uint32_t)400000);
FT5206_Touch_Init(Wire1);
#endif // USE_FT5206
#endif // ESP32
st7789_init_done = true;
AddLog(LOG_LEVEL_INFO, PSTR("DSP: ST7789"));
}
}
#ifdef ESP32
#ifdef USE_FT5206
#ifdef USE_TOUCH_BUTTONS
void ST7789_RotConvert(int16_t *x, int16_t *y) {
int16_t temp;
if (renderer) {
uint8_t rot=renderer->getRotation();
switch (rot) {
case 0:
break;
case 1:
temp=*y;
*y=renderer->height()-*x;
*x=temp;
break;
case 2:
*x=renderer->width()-*x;
*y=renderer->height()-*y;
break;
case 3:
temp=*y;
*y=*x;
*x=renderer->width()-temp;
break;
}
}
}
// check digitizer hit
void ST7789_CheckTouch() {
st7789_ctouch_counter++;
if (2 == st7789_ctouch_counter) {
// every 100 ms should be enough
st7789_ctouch_counter = 0;
Touch_Check(ST7789_RotConvert);
}
}
#endif // USE_TOUCH_BUTTONS
#endif // USE_FT5206
#endif // ESP32
/*********************************************************************************************/
/*********************************************************************************************\
* Interface
\*********************************************************************************************/
bool Xdsp12(uint8_t function)
{
bool result = false;
//AddLog(LOG_LEVEL_INFO, PSTR("touch %d - %d"), FT5206_found, function);
if (FUNC_DISPLAY_INIT_DRIVER == function) {
ST7789_InitDriver();
}
else if (st7789_init_done && (XDSP_12 == Settings->display_model)) {
switch (function) {
case FUNC_DISPLAY_MODEL:
result = true;
break;
case FUNC_DISPLAY_EVERY_50_MSECOND:
#ifdef USE_FT5206
#ifdef USE_TOUCH_BUTTONS
if (FT5206_found) {
ST7789_CheckTouch();
}
#endif
#endif // USE_FT5206
break;
}
}
return result;
}
#endif // USE_DISPLAY_ST7789
#endif // USE_DISPLAY
#endif // USE_SPI