LilyGo T-Display (#406)

+ expose lvglSwapBytes setting for the St7789Display driver. + updated all relevant boards accordingly.
2025-11-03 01:56:03 +10:00
parent ab2aa2c4d4
commit 0d8c0a37cc
20 changed files with 193 additions and 10 deletions
@@ -0,0 +1,32 @@
+#include "Display.h"
+
+#include <PwmBacklight.h>
+#include <St7789Display.h>
+
+std::shared_ptr<tt::hal::display::DisplayDevice> createDisplay() {
+    St7789Display::Configuration panel_configuration = {
+        .horizontalResolution = LCD_HORIZONTAL_RESOLUTION,
+        .verticalResolution = LCD_VERTICAL_RESOLUTION,
+        .gapX = 52,
+        .gapY = 40,
+        .swapXY = false,
+        .mirrorX = false,
+        .mirrorY = false,
+        .invertColor = true,
+        .bufferSize = LCD_BUFFER_SIZE,
+        .touch = nullptr,
+        .backlightDutyFunction = driver::pwmbacklight::setBacklightDuty,
+        .resetPin = LCD_PIN_RESET,
+        .lvglSwapBytes = true
+    };
+
+    auto spi_configuration = std::make_shared<St7789Display::SpiConfiguration>(St7789Display::SpiConfiguration {
+        .spiHostDevice = LCD_SPI_HOST,
+        .csPin = LCD_PIN_CS,
+        .dcPin = LCD_PIN_DC,
+        .pixelClockFrequency = 62'500'000,
+        .transactionQueueDepth = 10
+    });
+
+    return std::make_shared<St7789Display>(panel_configuration, spi_configuration);
+}
@@ -0,0 +1,19 @@
+#pragma once
+
+#include <Tactility/hal/display/DisplayDevice.h>
+#include <memory>
+#include <driver/gpio.h>
+#include <driver/spi_common.h>
+
+constexpr auto LCD_SPI_HOST = SPI2_HOST;
+constexpr auto LCD_PIN_CS = GPIO_NUM_5;
+constexpr auto LCD_PIN_DC = GPIO_NUM_16;
+constexpr auto LCD_PIN_RESET = GPIO_NUM_23;
+constexpr auto LCD_PIN_BACKLIGHT = GPIO_NUM_4;
+constexpr auto LCD_HORIZONTAL_RESOLUTION = 135;
+constexpr auto LCD_VERTICAL_RESOLUTION = 240;
+constexpr auto LCD_BUFFER_HEIGHT = LCD_VERTICAL_RESOLUTION / 3;
+constexpr auto LCD_BUFFER_SIZE = LCD_HORIZONTAL_RESOLUTION * LCD_BUFFER_HEIGHT;
+constexpr auto LCD_SPI_TRANSFER_SIZE_LIMIT = LCD_BUFFER_SIZE * LV_COLOR_DEPTH / 8;
+
+std::shared_ptr<tt::hal::display::DisplayDevice> createDisplay();