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Quency-DQuency-D
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add heltec-v4-tft code. (#231)
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3 files changed

+181
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‎include/graphics/LGFX/LGFX_HELTEC_V4_TFT.h‎

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#pragma once
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#define LGFX_USE_V1
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#include <LovyanGFX.hpp>
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class Panel_HELTEC_V4_TFT : public lgfx::Panel_ST7789
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{
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protected:
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const uint8_t *getInitCommands(uint8_t listno) const override
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{
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static uint8_t list[] = {CMD_GAMMASET, 1, 0x01, // Gamma set, curve 1
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0xFF, 0xFF};
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if (listno == 1)
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return list;
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return Panel_ST7789::getInitCommands(listno);
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}
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};
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#ifdef CUSTOM_TOUCH_DRIVER
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#include "chsc6x.h"
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#define SCREEN_X 240
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#define SCREEN_Y 320
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// custom class for redirecting getTouch() calls and to alternative implementation
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class LGFX_Touch : public lgfx::LGFX_Device
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{
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public:
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bool init_impl(bool use_reset, bool use_clear) override
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{
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bool result = LGFX_Device::init_impl(use_reset, use_clear);
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if(chsc6xTouch==nullptr){
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chsc6xTouch=new chsc6x(&Wire1,TOUCH_SDA_PIN,TOUCH_SCL_PIN,TOUCH_INT_PIN,TOUCH_RST_PIN);
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}
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chsc6xTouch->chsc6x_init();
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return result;
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}
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// rotation: 0=default, 1=90°, 2=180°, 3=270°
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void rotate_touch_coord(uint16_t raw_x, uint16_t raw_y, uint16_t rotation, uint16_t *out_x, uint16_t *out_y)
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{
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switch (rotation) {
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case 0: // 0°
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*out_x = raw_x;
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*out_y = raw_y;
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break;
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case 1: // 90°
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*out_x = raw_y;
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*out_y = SCREEN_X - 1 - raw_x;
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break;
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case 2: // 180°
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*out_x = SCREEN_X - 1 - raw_x;
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*out_y = SCREEN_Y - 1 - raw_y;
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break;
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case 3: // 270°
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*out_x = SCREEN_Y - 1 - raw_y;
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*out_y = raw_x;
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break;
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default: // fallback
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*out_x = raw_x;
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*out_y = raw_y;
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}
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}
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LGFX_Touch *touch(void) { return this; }
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int8_t getTouchInt(void) { return TOUCH_INT_PIN; }
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bool getTouchXY(uint16_t *touchX, uint16_t *touchY)
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{
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uint16_t rwa_x,raw_y;
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if (chsc6xTouch->chsc6x_read_touch_info(&rwa_x, &raw_y)==0) {
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rotate_touch_coord(rwa_x, raw_y,3,touchX, touchY);
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return true;
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}
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return false;
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};
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void wakeup(void) {};
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void sleep(void) {};
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private:
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chsc6x *chsc6xTouch=nullptr;
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};
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class LGFX_HELTEC_V4_TFT : public LGFX_Touch
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#else
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class LGFX_HELTEC_V4_TFT : public lgfx::LGFX_Device
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#endif
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{
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Panel_HELTEC_V4_TFT _panel_instance;
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lgfx::Bus_SPI _bus_instance;
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lgfx::Light_PWM _light_instance;
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public:
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const uint32_t screenWidth = 240;
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const uint32_t screenHeight = 320;
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bool hasButton(void) { return true; }
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LGFX_HELTEC_V4_TFT(void)
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{
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{
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auto cfg = _bus_instance.config();
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// SPI
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cfg.spi_host = SPI3_HOST;
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cfg.spi_mode = 0;
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cfg.freq_write = 80000000; // SPI clock for transmission (up to 80MHz, rounded to
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// the value obtained by dividing 80MHz by an integer)
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cfg.freq_read = 16000000; // SPI clock when receiving
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cfg.spi_3wire = true;
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cfg.use_lock = true; // Set to true to use transaction locking
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cfg.dma_channel = SPI_DMA_CH_AUTO; // SPI_DMA_CH_AUTO; // Set DMA channel
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// to use (0=not use DMA / 1=1ch / 2=ch
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// / SPI_DMA_CH_AUTO=auto setting)
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cfg.pin_sclk = LGFX_PIN_SCK; // Set SPI SCLK pin number
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cfg.pin_mosi = LGFX_PIN_MOSI; // Set SPI MOSI pin number
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cfg.pin_miso = -1; // Set SPI MISO pin number (-1 = disable)
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cfg.pin_dc = LGFX_PIN_DC; // Set SPI DC pin number (-1 = disable)
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_bus_instance.config(cfg); // applies the set value to the bus.
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_panel_instance.setBus(&_bus_instance); // set the bus on the panel.
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}
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{ // Set the display panel control.
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auto cfg = _panel_instance.config(); // Gets a structure for display panel settings.
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cfg.pin_cs = LGFX_PIN_CS; // Pin number where CS is connected (-1 = disable)
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cfg.pin_rst = LGFX_PIN_RST; // Pin number where RST is connected (-1 = disable)
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cfg.pin_busy = -1; // Pin number where BUSY is connected (-1 = disable)
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// The following setting values ​​are general initial values ​​for
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// each panel, so please comment out any unknown items and try them.
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cfg.panel_width = screenWidth; // actual displayable width
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cfg.panel_height = screenHeight; // actual displayable height
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cfg.offset_x = 0; // Panel offset amount in X direction
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cfg.offset_y = 0; // Panel offset amount in Y direction
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cfg.offset_rotation = 3; // Rotation direction value offset 0~7 (4~7 is upside down)
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cfg.dummy_read_pixel = 9; // Number of bits for dummy read before pixel readout
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cfg.dummy_read_bits = 1; // Number of bits for dummy read before non-pixel data read
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cfg.readable = false; // Set to true if data can be read
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cfg.invert = true; // Set to true if the light/darkness of the panel is reversed
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cfg.rgb_order = false; // Set to true if the panel's red and blue are swapped
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cfg.dlen_16bit = false; // Set to true for panels that transmit data length in 16-bit
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// units with 16-bit parallel or SPI
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cfg.bus_shared = false; // If the bus is shared with the SD card, set to
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// true (bus control with drawJpgFile etc.)
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// Set the following only when the display is shifted with a driver with a
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// variable number of pixels, such as the ST7735 or ILI9163.
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// cfg.memory_width = TFT_WIDTH; // Maximum width supported by the
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// driver IC cfg.memory_height = TFT_HEIGHT; // Maximum height supported
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// by the driver IC
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_panel_instance.config(cfg);
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}
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// Set the backlight control. (delete if not necessary)
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{
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auto cfg = _light_instance.config(); // Gets a structure for backlight settings.
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cfg.pin_bl = 21; // Pin number to which the backlight is connected
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cfg.invert = false; // true to invert the brightness of the backlight
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cfg.freq = 44100;
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cfg.pwm_channel = 7;
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_light_instance.config(cfg);
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_panel_instance.setLight(&_light_instance); // Set the backlight on the panel.
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}
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setPanel(&_panel_instance); // Sets the panel to use.
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}
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};

‎include/graphics/driver/DisplayDriverConfig.h‎

Lines changed: 2 additions & 1 deletion
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@@ -36,7 +36,8 @@ class DisplayDriverConfig
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ESP2432S028RV1,
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ESP2432S028RV2,
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ESP4848S040,
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MAKERFABS480X480
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MAKERFABS480X480,
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HELTECV4_TFT
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};
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struct panel_config_t {

‎source/graphics/driver/DisplayDriverFactory.cpp‎

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@@ -69,6 +69,9 @@
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#ifdef NODEMCU_32S
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#include "graphics/LGFX/LGFX_ESPILI9341XPT2046.h"
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#endif
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#ifdef HELTEC_V4_TFT
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#include "graphics/LGFX/LGFX_HELTEC_V4_TFT.h"
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#endif
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#endif
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DisplayDriverFactory::DisplayDriverFactory() {}
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case DisplayDriverConfig::device_t::X11:
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return &X11Driver::create(cfg.width(), cfg.height());
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break;
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#elif defined(HELTEC_V4_TFT)
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case DisplayDriverConfig::device_t::HELTECV4_TFT:
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return new LGFXDriver<LGFX_HELTEC_V4_TFT>(cfg.width(), cfg.height());
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break;
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#endif
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default:
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ILOG_CRIT("LGFX device_t config not implemented: %d", cfg._device);

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