Add LilyGO T-Deck Max (e-paper) base board support (#552)

2026-07-08 02:40:09 -04:00
parent f4f91f81d6
commit d6ac070e30
27 changed files with 2274 additions and 0 deletions
@@ -0,0 +1,57 @@
+#include "Display.h"
+#include "Cst66xxTouch.h"
+
+#include <Gdeq031t10Display.h>
+#include <tactility/log.h>
+#include <tactility/device.h>
+
+constexpr auto* TAG = "TdeckmaxDisplay";
+
+// Pins and I2C address from Xinyuan-LilyGO/T-Deck-MAX's
+// lib/TDeckMaxBoard/src/TDeckMaxBoard.h and docs/pinmap.md.
+constexpr auto EPD_SPI_HOST = SPI2_HOST;
+constexpr auto EPD_PIN_CS = GPIO_NUM_34;
+constexpr auto EPD_PIN_DC = GPIO_NUM_35;
+constexpr auto EPD_PIN_RST = GPIO_NUM_9;
+constexpr auto EPD_PIN_BUSY = GPIO_NUM_37;
+constexpr uint16_t TOUCH_I2C_ADDRESS = 0x1A;
+
+static std::shared_ptr<tt::hal::touch::TouchDevice> createTouch() {
+    auto* i2c = device_find_by_name("i2c0");
+    if (i2c == nullptr) {
+        LOG_E(TAG, "i2c0 not found, booting without touch");
+        return nullptr;
+    }
+
+    // The touch reset line is released earlier via the XL9555 expander (see
+    // Configuration.cpp). Orientation flags are starting guesses; adjust after
+    // checking on hardware.
+    const Cst66xxTouch::Configuration configuration = {
+        .i2cController = i2c,
+        .address = TOUCH_I2C_ADDRESS,
+        .width = Gdeq031t10Display::WIDTH,
+        .height = Gdeq031t10Display::HEIGHT,
+        .swapXy = false,
+        .mirrorX = false,
+        .mirrorY = false,
+    };
+
+    return std::make_shared<Cst66xxTouch>(configuration);
+}
+
+std::shared_ptr<tt::hal::display::DisplayDevice> createDisplay() {
+    auto configuration = std::make_unique<Gdeq031t10Display::Configuration>(
+        EPD_SPI_HOST,
+        EPD_PIN_CS,
+        EPD_PIN_DC,
+        EPD_PIN_RST,
+        EPD_PIN_BUSY,
+        createTouch(),
+        10'000'000,
+        // Default to a fast (~1s) refresh for the automatic ghost-clears so the
+        // full-screen flash they cause is as short as possible.
+        Gdeq031t10Display::RefreshMode::Fast
+    );
+
+    return std::make_shared<Gdeq031t10Display>(std::move(configuration));
+}