New board: Elecrow CrowPanel Advance 3.5" (#231)

- Implement CrowPanel Advance 3.5"
- New driver subproject: ILI9488
- New driver subproject: GT911
- Refactor T-Deck to use new driver subproject
- Fix for `flash.ps1`: don't set flash speed

.github/workflows/build-firmware.yml

@@ -27,6 +27,15 @@ jobs:
         with:
           board_id: elecrow-crowpanel-advance-28
           arch: esp32s3
+  elecrow-crowpanel-advance-35:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: "Build"
+        uses: ./.github/actions/build-firmware
+        with:
+          board_id: elecrow-crowpanel-advance-35
+          arch: esp32s3
   elecrow-crowpanel-basic-28:
     runs-on: ubuntu-latest
     steps:

App/CMakeLists.txt

@@ -14,6 +14,7 @@ if (DEFINED ENV{ESP_IDF_VERSION})
     if("${IDF_TARGET}" STREQUAL "esp32s3")
         list(APPEND BOARD_COMPONENTS
             ElecrowCrowpanelAdvance28
+            ElecrowCrowpanelAdvance35
             LilygoTdeck
             M5stackCoreS3
             UnPhone

App/Source/Boards.h

@@ -13,6 +13,9 @@
 #elif (defined(CONFIG_TT_BOARD_ELECROW_CROWPANEL_ADVANCE_28))
 #define TT_BOARD_HARDWARE &crowpanel_advance_28
 #include "CrowPanelAdvance28.h"
+#elif (defined(CONFIG_TT_BOARD_ELECROW_CROWPANEL_ADVANCE_35))
+#define TT_BOARD_HARDWARE &crowpanel_advance_35
+#include "CrowPanelAdvance35.h"
 #elif (defined(CONFIG_TT_BOARD_ELECROW_CROWPANEL_BASIC_28))
 #define TT_BOARD_HARDWARE &crowpanel_basic_28
 #include "CrowPanelBasic28.h"

App/idf_component.yml

@@ -1,5 +1,6 @@
 dependencies:
   espressif/esp_lcd_ili9341: "2.0.0"
+  atanisoft/esp_lcd_ili9488: "1.0.10"
   espressif/esp_lcd_touch: "1.1.2"
   atanisoft/esp_lcd_touch_xpt2046: "1.0.5"
   espressif/esp_lcd_touch_cst816s: "1.0.3"

Boards/ElecrowCrowpanelAdvance35/CMakeLists.txt

@@ -0,0 +1,7 @@
+file(GLOB_RECURSE SOURCE_FILES Source/*.c*)
+
+idf_component_register(
+    SRCS ${SOURCE_FILES}
+    INCLUDE_DIRS "Source"
+    REQUIRES Tactility esp_lvgl_port ILI9488 GT911 PwmBacklight driver
+)

Boards/ElecrowCrowpanelAdvance35/Source/CrowPanelAdvance35.cpp

@@ -0,0 +1,150 @@
+#include "PwmBacklight.h"
+#include "Tactility/lvgl/LvglSync.h"
+#include "hal/CrowPanelDisplay.h"
+#include "hal/CrowPanelDisplayConstants.h"
+#include "hal/CrowPanelSdCard.h"
+
+#include <Tactility/hal/Configuration.h>
+
+#define CROWPANEL_SPI_TRANSFER_SIZE_LIMIT (CROWPANEL_LCD_HORIZONTAL_RESOLUTION * CROWPANEL_LCD_SPI_TRANSFER_HEIGHT * (LV_COLOR_DEPTH / 8))
+
+using namespace tt::hal;
+
+bool initBoot() {
+    return driver::pwmbacklight::init(GPIO_NUM_38);
+}
+
+extern const Configuration crowpanel_advance_35 = {
+    .initBoot = initBoot,
+    .createDisplay = createDisplay,
+    .sdcard = createSdCard(),
+    .i2c = {
+        // There is only 1 (internal for touch, and also serves as "I2C-OUT" port)
+        // Note: You could repurpose 1 or more UART interfaces as I2C interfaces
+        i2c::Configuration {
+            .name = "Main",
+            .port = I2C_NUM_0,
+            .initMode = i2c::InitMode::ByTactility,
+            .canReinit = false,
+            .hasMutableConfiguration = false,
+            .config = (i2c_config_t) {
+                .mode = I2C_MODE_MASTER,
+                .sda_io_num = GPIO_NUM_15,
+                .scl_io_num = GPIO_NUM_16,
+                .sda_pullup_en = true,
+                .scl_pullup_en = true,
+                .master = {
+                    .clk_speed = 400000
+                },
+                .clk_flags = 0
+            }
+        }
+    },
+    .spi {
+        // Display
+        spi::Configuration {
+            .device = SPI2_HOST,
+            .dma = SPI_DMA_DISABLED,
+            .config = {
+                .mosi_io_num = GPIO_NUM_39,
+                .miso_io_num = GPIO_NUM_NC,
+                .sclk_io_num = GPIO_NUM_42,
+                .quadwp_io_num = GPIO_NUM_NC,
+                .quadhd_io_num = GPIO_NUM_NC,
+                .data4_io_num = 0,
+                .data5_io_num = 0,
+                .data6_io_num = 0,
+                .data7_io_num = 0,
+                .data_io_default_level = false,
+                .max_transfer_sz = CROWPANEL_SPI_TRANSFER_SIZE_LIMIT,
+                .flags = 0,
+                .isr_cpu_id = ESP_INTR_CPU_AFFINITY_AUTO,
+                .intr_flags = 0
+            },
+            .initMode = spi::InitMode::ByTactility,
+            .canReinit = false,
+            .hasMutableConfiguration = false,
+            .lock = tt::lvgl::getSyncLock() // esp_lvgl_port owns the lock for the display
+        },
+        // SD card
+        spi::Configuration {
+            .device = SPI3_HOST,
+            .dma = SPI_DMA_CH_AUTO,
+            .config = {
+                .mosi_io_num = GPIO_NUM_6,
+                .miso_io_num = GPIO_NUM_4,
+                .sclk_io_num = GPIO_NUM_5,
+                .quadwp_io_num = GPIO_NUM_NC,
+                .quadhd_io_num = GPIO_NUM_NC,
+                .data4_io_num = 0,
+                .data5_io_num = 0,
+                .data6_io_num = 0,
+                .data7_io_num = 0,
+                .data_io_default_level = false,
+                .max_transfer_sz = 32768,
+                .flags = 0,
+                .isr_cpu_id = ESP_INTR_CPU_AFFINITY_AUTO,
+                .intr_flags = 0
+            },
+            .initMode = spi::InitMode::ByTactility,
+            .canReinit = false,
+            .hasMutableConfiguration = false,
+            .lock = nullptr // No custom lock needed
+        }
+    },
+    .uart {
+        // "UART0-IN"
+        uart::Configuration {
+            .port = UART_NUM_1,
+            .initMode = uart::InitMode::Disabled, // Manual init
+            .canReinit = true,
+            .hasMutableConfiguration = false,
+            .rxPin = GPIO_NUM_44,
+            .txPin = GPIO_NUM_43,
+            .rtsPin = GPIO_NUM_NC,
+            .ctsPin = GPIO_NUM_NC,
+            .rxBufferSize = 1024,
+            .txBufferSize = 1024,
+            .config = {
+                .baud_rate = 115200,
+                .data_bits = UART_DATA_8_BITS,
+                .parity    = UART_PARITY_DISABLE,
+                .stop_bits = UART_STOP_BITS_1,
+                .flow_ctrl = UART_HW_FLOWCTRL_DISABLE,
+                .rx_flow_ctrl_thresh = 0,
+                .source_clk = UART_SCLK_DEFAULT,
+                .flags = {
+                    .allow_pd = 0,
+                    .backup_before_sleep = 0,
+                }
+            }
+        },
+        // "UART1-OUT"
+        uart::Configuration {
+            .port = UART_NUM_1,
+            .initMode = uart::InitMode::Disabled, // Manual init
+            .canReinit = true,
+            .hasMutableConfiguration = false,
+            .rxPin = GPIO_NUM_18,
+            .txPin = GPIO_NUM_17,
+            .rtsPin = GPIO_NUM_NC,
+            .ctsPin = GPIO_NUM_NC,
+            .rxBufferSize = 1024,
+            .txBufferSize = 1024,
+            .config = {
+                .baud_rate = 115200,
+                .data_bits = UART_DATA_8_BITS,
+                .parity    = UART_PARITY_DISABLE,
+                .stop_bits = UART_STOP_BITS_1,
+                .flow_ctrl = UART_HW_FLOWCTRL_DISABLE,
+                .rx_flow_ctrl_thresh = 0,
+                .source_clk = UART_SCLK_DEFAULT,
+                .flags = {
+                    .allow_pd = 0,
+                    .backup_before_sleep = 0,
+                }
+            }
+        }
+    },
+    .gps = {}
+};

Boards/ElecrowCrowpanelAdvance35/Source/CrowPanelAdvance35.h

@@ -0,0 +1,5 @@
+#pragma once
+
+#include <Tactility/hal/Configuration.h>
+
+extern const tt::hal::Configuration crowpanel_advance_35;

Boards/ElecrowCrowpanelAdvance35/Source/hal/CrowPanelDisplay.cpp

@@ -0,0 +1,40 @@
+#include "CrowPanelDisplay.h"
+#include "CrowPanelDisplayConstants.h"
+
+#include <Gt911Touch.h>
+#include <PwmBacklight.h>
+#include <Ili9488Display.h>
+
+#define TAG "crowpanel_display"
+
+static std::shared_ptr<tt::hal::touch::TouchDevice> createTouch() {
+    // Note for future changes: Reset pin is 48 and interrupt pin is 47
+    auto configuration = std::make_unique<Gt911Touch::Configuration>(
+        I2C_NUM_0,
+        320,
+        480
+    );
+
+    return std::make_shared<Gt911Touch>(std::move(configuration));
+}
+
+std::shared_ptr<tt::hal::display::DisplayDevice> createDisplay() {
+    auto touch = createTouch();
+
+    auto configuration = std::make_unique<Ili9488Display::Configuration>(
+        CROWPANEL_LCD_SPI_HOST,
+        CROWPANEL_LCD_PIN_CS,
+        CROWPANEL_LCD_PIN_DC,
+        CROWPANEL_LCD_HORIZONTAL_RESOLUTION,
+        CROWPANEL_LCD_VERTICAL_RESOLUTION,
+        touch,
+        false,
+        false,
+        false,
+        true
+    );
+
+    configuration->backlightDutyFunction = driver::pwmbacklight::setBacklightDuty;
+
+    return std::make_shared<Ili9488Display>(std::move(configuration));
+}

Boards/ElecrowCrowpanelAdvance35/Source/hal/CrowPanelDisplay.h

@@ -0,0 +1,40 @@
+#pragma once
+
+#include "Tactility/hal/display/DisplayDevice.h"
+#include <esp_lcd_types.h>
+#include <lvgl.h>
+
+class CrowPanelDisplay : public tt::hal::display::DisplayDevice {
+
+private:
+
+    esp_lcd_panel_io_handle_t ioHandle = nullptr;
+    esp_lcd_panel_handle_t panelHandle = nullptr;
+    lv_display_t* displayHandle = nullptr;
+    bool poweredOn = false;
+
+public:
+
+    std::string getName() const final { return "ST7789"; }
+    std::string getDescription() const final { return "SPI display"; }
+
+    bool start() override;
+
+    bool stop() override;
+
+    void setPowerOn(bool turnOn) override;
+    bool isPoweredOn() const override { return poweredOn; };
+    bool supportsPowerControl() const override { return true; }
+
+    std::shared_ptr<tt::hal::touch::TouchDevice> _Nullable createTouch() override;
+
+    void setBacklightDuty(uint8_t backlightDuty) override;
+    bool supportsBacklightDuty() const override { return true; }
+
+    void setGammaCurve(uint8_t index) override;
+    uint8_t getGammaCurveCount() const override { return 4; };
+
+    lv_display_t* _Nullable getLvglDisplay() const override { return displayHandle; }
+};
+
+std::shared_ptr<tt::hal::display::DisplayDevice> createDisplay();

Boards/ElecrowCrowpanelAdvance35/Source/hal/CrowPanelDisplayConstants.h

@@ -0,0 +1,8 @@
+#pragma once
+
+#define CROWPANEL_LCD_SPI_HOST SPI2_HOST
+#define CROWPANEL_LCD_PIN_CS GPIO_NUM_40
+#define CROWPANEL_LCD_PIN_DC GPIO_NUM_41 // RS
+#define CROWPANEL_LCD_HORIZONTAL_RESOLUTION 320
+#define CROWPANEL_LCD_VERTICAL_RESOLUTION 480
+#define CROWPANEL_LCD_SPI_TRANSFER_HEIGHT (CROWPANEL_LCD_VERTICAL_RESOLUTION / 10)

Boards/ElecrowCrowpanelAdvance35/Source/hal/CrowPanelSdCard.cpp

@@ -0,0 +1,29 @@
+#include "CrowPanelSdCard.h"
+
+#include <Tactility/lvgl/LvglSync.h>
+#include <Tactility/hal/sdcard/SpiSdCardDevice.h>
+
+#include <esp_vfs_fat.h>
+
+using tt::hal::sdcard::SpiSdCardDevice;
+
+#define CROWPANEL_SDCARD_PIN_CS GPIO_NUM_7
+
+std::shared_ptr<SdCardDevice> createSdCard() {
+    auto* configuration = new SpiSdCardDevice::Config(
+        CROWPANEL_SDCARD_PIN_CS,
+        GPIO_NUM_NC,
+        GPIO_NUM_NC,
+        GPIO_NUM_NC,
+        SdCardDevice::MountBehaviour::AtBoot,
+        tt::lvgl::getSyncLock(),
+        {},
+        SPI3_HOST
+    );
+
+    auto* sdcard = (SdCardDevice*) new SpiSdCardDevice(
+        std::unique_ptr<SpiSdCardDevice::Config>(configuration)
+    );
+
+    return std::shared_ptr<SdCardDevice>(sdcard);
+}

Boards/ElecrowCrowpanelAdvance35/Source/hal/CrowPanelSdCard.h

@@ -0,0 +1,7 @@
+#pragma once
+
+#include "Tactility/hal/sdcard/SdCardDevice.h"
+
+using tt::hal::sdcard::SdCardDevice;
+
+std::shared_ptr<SdCardDevice> createSdCard();

Boards/LilygoTdeck/CMakeLists.txt

@@ -3,5 +3,5 @@ file(GLOB_RECURSE SOURCE_FILES Source/*.c*)
 idf_component_register(
     SRCS ${SOURCE_FILES}
     INCLUDE_DIRS "Source"
-    REQUIRES Tactility esp_lvgl_port esp_lcd esp_lcd_touch_gt911 ST7789 PwmBacklight driver esp_adc
+    REQUIRES Tactility esp_lvgl_port esp_lcd ST7789 GT911 PwmBacklight driver esp_adc
 )

Boards/LilygoTdeck/Source/hal/TdeckDisplay.cpp

@@ -1,7 +1,7 @@
 #include "TdeckDisplay.h"
 #include "TdeckDisplayConstants.h"
-#include "TdeckTouch.h"
 
+#include <Gt911Touch.h>
 #include <PwmBacklight.h>
 #include <St7789Display.h>
 
@@ -9,8 +9,22 @@
 
 #define TAG "tdeck_display"
 
+static std::shared_ptr<tt::hal::touch::TouchDevice> createTouch() {
+    // Note for future changes: Reset pin is 48 and interrupt pin is 47
+    auto configuration = std::make_unique<Gt911Touch::Configuration>(
+        I2C_NUM_0,
+        240,
+        320,
+        true,
+        true,
+        false
+    );
+
+    return std::make_shared<Gt911Touch>(std::move(configuration));
+}
+
 std::shared_ptr<tt::hal::display::DisplayDevice> createDisplay() {
-    auto touch = std::make_shared<TdeckTouch>();
+    auto touch = createTouch();
 
     auto configuration = std::make_unique<St7789Display::Configuration>(
         TDECK_LCD_SPI_HOST,

Boards/LilygoTdeck/Source/hal/TdeckTouch.h

@@ -1,25 +0,0 @@
-#pragma once
-
-#include "Tactility/hal/touch/TouchDevice.h"
-#include <Tactility/TactilityCore.h>
-#include <esp_lcd_panel_io_interface.h>
-#include <esp_lcd_touch.h>
-
-class TdeckTouch : public tt::hal::touch::TouchDevice {
-
-private:
-
-    std::string getName() const final { return "GT911"; }
-    std::string getDescription() const final { return "I2C Touch Driver"; }
-
-    esp_lcd_panel_io_handle_t _Nullable ioHandle = nullptr;
-    esp_lcd_touch_handle_t _Nullable touchHandle = nullptr;
-    lv_indev_t* _Nullable deviceHandle = nullptr;
-    void cleanup();
-
-public:
-
-    bool start(lv_display_t* display) override;
-    bool stop() override;
-    lv_indev_t* _Nullable getLvglIndev() override { return deviceHandle; }
-};

Buildscripts/Flashing/flash.ps1

@@ -15,7 +15,7 @@ $jsonClean = $jsonClean -replace '[\=]', ' '
 cd Binaries
 $command = "esptool --port $port erase_flash"
 Invoke-Expression $command
-$command = "esptool --port $port -b 460800 write_flash $jsonClean"
+$command = "esptool --port $port write_flash $jsonClean"
 Invoke-Expression $command
 cd ..
 

Buildscripts/build-and-release-all.sh

@@ -17,6 +17,9 @@ SECONDS=0
 build elecrow-crowpanel-advance-28
 release elecrow-crowpanel-advance-28
 
+build elecrow-crowpanel-advance-35
+release elecrow-crowpanel-advance-35
+
 build elecrow-crowpanel-basic-28
 release elecrow-crowpanel-basic-28
 

CMakeLists.txt

@@ -44,6 +44,7 @@ if (DEFINED ENV{ESP_IDF_VERSION})
     # Non-ESP32-S3 boards
     if(NOT "${IDF_TARGET}" STREQUAL "esp32s3")
         set(EXCLUDE_COMPONENTS "ElecrowCrowpanelAdvance28")
+        set(EXCLUDE_COMPONENTS "ElecrowCrowpanelAdvance35")
         set(EXCLUDE_COMPONENTS "LilygoTdeck")
         set(EXCLUDE_COMPONENTS "M5stackCoreS3")
         set(EXCLUDE_COMPONENTS "UnPhone")

Drivers/GT911/CMakeLists.txt

@@ -0,0 +1,5 @@
+idf_component_register(
+    SRC_DIRS "Source"
+    INCLUDE_DIRS "Source"
+    REQUIRES Tactility esp_lvgl_port esp_lcd_touch esp_lcd_touch_gt911 driver
+)

Drivers/GT911/README.md

@@ -0,0 +1,3 @@
+# GT911
+
+GT911 touch driver for Tactility.

Drivers/GT911/Source/Gt911Touch.cpp

@@ -1,38 +1,34 @@
-#include "TdeckTouch.h"
+#include "Gt911Touch.h"
 
-#include <esp_err.h>
-#include <esp_lcd_touch_gt911.h>
 #include <Tactility/Log.h>
+
+#include <esp_lcd_touch_gt911.h>
+#include <esp_err.h>
 #include <esp_lvgl_port.h>
 
-#define TAG "tdeck_touch"
+#define TAG "GT911"
 
-// Touch (GT911)
+bool Gt911Touch::start(lv_display_t* display) {
-#define TDECK_TOUCH_I2C_BUS_HANDLE I2C_NUM_0
-#define TDECK_TOUCH_X_MAX 240
-#define TDECK_TOUCH_Y_MAX 320
-
-bool TdeckTouch::start(lv_display_t* display) {
     const esp_lcd_panel_io_i2c_config_t io_config = ESP_LCD_TOUCH_IO_I2C_GT911_CONFIG();
 
-    if (esp_lcd_new_panel_io_i2c(TDECK_TOUCH_I2C_BUS_HANDLE, &io_config, &ioHandle) != ESP_OK) {
+    if (esp_lcd_new_panel_io_i2c(configuration->port, &io_config, &ioHandle) != ESP_OK) {
-        TT_LOG_E(TAG, "touch io i2c creation failed");
+        TT_LOG_E(TAG, "Touch IO I2C creation failed");
         return false;
     }
 
     esp_lcd_touch_config_t config = {
-        .x_max = TDECK_TOUCH_X_MAX,
+        .x_max = configuration->xMax,
-        .y_max = TDECK_TOUCH_Y_MAX,
+        .y_max = configuration->yMax,
-        .rst_gpio_num = GPIO_NUM_NC,
+        .rst_gpio_num = configuration->pinReset,
-        .int_gpio_num = GPIO_NUM_NC, // There is no reset pin for touch on the T-Deck, leading to a bug in esp_lvgl_port firing multiple click events when tapping the screen
+        .int_gpio_num = configuration->pinInterrupt,
         .levels = {
-            .reset = 0,
+            .reset = configuration->pinResetLevel,
-            .interrupt = 0,
+            .interrupt = configuration->pinInterruptLevel,
         },
         .flags = {
-            .swap_xy = 1,
+            .swap_xy = configuration->swapXy,
-            .mirror_x = 1,
+            .mirror_x = configuration->mirrorX,
-            .mirror_y = 0,
+            .mirror_y = configuration->mirrorY,
         },
         .process_coordinates = nullptr,
         .interrupt_callback = nullptr,
@@ -41,7 +37,7 @@ bool TdeckTouch::start(lv_display_t* display) {
     };
 
     if (esp_lcd_touch_new_i2c_gt911(ioHandle, &config, &touchHandle) != ESP_OK) {
-        TT_LOG_E(TAG, "GT911 driver init failed");
+        TT_LOG_E(TAG, "Driver init failed");
         cleanup();
         return false;
     }
@@ -62,12 +58,12 @@ bool TdeckTouch::start(lv_display_t* display) {
     return true;
 }
 
-bool TdeckTouch::stop() {
+bool Gt911Touch::stop() {
     cleanup();
     return true;
 }
 
-void TdeckTouch::cleanup() {
+void Gt911Touch::cleanup() {
     if (deviceHandle != nullptr) {
         lv_indev_delete(deviceHandle);
         deviceHandle = nullptr;

Drivers/GT911/Source/Gt911Touch.h

@@ -0,0 +1,73 @@
+#pragma once
+
+#include <Tactility/hal/touch/TouchDevice.h>
+#include <Tactility/TactilityCore.h>
+#include <driver/i2c.h>
+
+#include <esp_lcd_panel_io_interface.h>
+#include <esp_lcd_touch.h>
+
+class Gt911Touch final : public tt::hal::touch::TouchDevice {
+
+public:
+
+    class Configuration {
+    public:
+
+        Configuration(
+            i2c_port_t port,
+            uint16_t xMax,
+            uint16_t yMax,
+            bool swapXy = false,
+            bool mirrorX = false,
+            bool mirrorY = false,
+            gpio_num_t pinReset = GPIO_NUM_NC,
+            gpio_num_t pinInterrupt = GPIO_NUM_NC,
+            unsigned int pinResetLevel = 0,
+            unsigned int pinInterruptLevel = 0
+        ) : port(port),
+            xMax(xMax),
+            yMax(yMax),
+            swapXy(swapXy),
+            mirrorX(mirrorX),
+            mirrorY(mirrorY),
+            pinReset(pinReset),
+            pinInterrupt(pinInterrupt),
+            pinResetLevel(pinResetLevel),
+            pinInterruptLevel(pinInterruptLevel)
+        {}
+
+        i2c_port_t port;
+        uint16_t xMax;
+        uint16_t yMax;
+        bool swapXy;
+        bool mirrorX;
+        bool mirrorY;
+        gpio_num_t pinReset;
+        gpio_num_t pinInterrupt;
+        unsigned int pinResetLevel;
+        unsigned int pinInterruptLevel;
+    };
+
+private:
+
+    std::unique_ptr<Configuration> configuration;
+    esp_lcd_panel_io_handle_t _Nullable ioHandle = nullptr;
+    esp_lcd_touch_handle_t _Nullable touchHandle = nullptr;
+    lv_indev_t* _Nullable deviceHandle = nullptr;
+
+    void cleanup();
+
+public:
+
+    explicit Gt911Touch(std::unique_ptr<Configuration> inConfiguration) : configuration(std::move(inConfiguration)) {
+        assert(configuration != nullptr);
+    }
+
+    bool start(lv_display_t* display) override;
+    bool stop() override;
+    lv_indev_t* _Nullable getLvglIndev() override { return deviceHandle; }
+
+    std::string getName() const final { return "GT911"; }
+    std::string getDescription() const final { return "I2C Touch Driver"; }
+};

Drivers/ILI9488/CMakeLists.txt

@@ -0,0 +1,5 @@
+idf_component_register(
+    SRC_DIRS "Source"
+    INCLUDE_DIRS "Source"
+    REQUIRES Tactility esp_lvgl_port esp_lcd esp_lcd_ili9488 driver
+)

Drivers/ILI9488/README.md

@@ -0,0 +1,6 @@
+# ILI9488
+
+A basic Tactility display driver for ILI9488 panels.
+
+**Warning:** This driver uses 3 or 18 bits per pixel in SPI mode. This requires a software pixel conversion at runtime
+and comes with a big performance penalty. It lowers the rate of rendering and it also requires an extra display buffer.

Drivers/ILI9488/Source/Ili9488Display.cpp

@@ -0,0 +1,143 @@
+#include "Ili9488Display.h"
+
+#include <Tactility/Log.h>
+
+#include <esp_lcd_ili9488.h>
+#include <esp_lcd_panel_commands.h>
+#include <esp_lvgl_port.h>
+
+#define TAG "ili9488"
+
+bool Ili9488Display::start() {
+    TT_LOG_I(TAG, "Starting");
+
+    const esp_lcd_panel_io_spi_config_t panel_io_config = {
+        .cs_gpio_num = configuration->csPin,
+        .dc_gpio_num = configuration->dcPin,
+        .spi_mode = 0,
+        .pclk_hz = configuration->pixelClockFrequency,
+        .trans_queue_depth = configuration->transactionQueueDepth,
+        .on_color_trans_done = nullptr,
+        .user_ctx = nullptr,
+        .lcd_cmd_bits = 8,
+        .lcd_param_bits = 8,
+        .cs_ena_pretrans = 0,
+        .cs_ena_posttrans = 0,
+        .flags = {
+            .dc_high_on_cmd = 0,
+            .dc_low_on_data = 0,
+            .dc_low_on_param = 0,
+            .octal_mode = 0,
+            .quad_mode = 0,
+            .sio_mode = 0,
+            .lsb_first = 0,
+            .cs_high_active = 0
+        }
+    };
+
+    if (esp_lcd_new_panel_io_spi(configuration->spiBusHandle, &panel_io_config, &ioHandle) != ESP_OK) {
+        TT_LOG_E(TAG, "Failed to create panel");
+        return false;
+    }
+
+    const esp_lcd_panel_dev_config_t panel_config = {
+        .reset_gpio_num = configuration->resetPin,
+        .rgb_ele_order = LCD_RGB_ELEMENT_ORDER_BGR,
+        .data_endian = LCD_RGB_DATA_ENDIAN_LITTLE,
+        .bits_per_pixel = 18,
+        .flags = {
+            .reset_active_high = false
+        },
+        .vendor_config = nullptr
+    };
+
+    uint32_t buffer_size;
+    if (configuration->bufferSize == 0) {
+        buffer_size = configuration->horizontalResolution * configuration->verticalResolution / 20;
+    } else {
+        buffer_size = configuration->bufferSize;
+    }
+
+    if (esp_lcd_new_panel_ili9488(ioHandle, &panel_config, buffer_size, &panelHandle) != ESP_OK) {
+        TT_LOG_E(TAG, "Failed to create panel");
+        return false;
+    }
+
+    if (esp_lcd_panel_reset(panelHandle) != ESP_OK) {
+        TT_LOG_E(TAG, "Failed to reset panel");
+        return false;
+    }
+
+    if (esp_lcd_panel_init(panelHandle) != ESP_OK) {
+        TT_LOG_E(TAG, "Failed to init panel");
+        return false;
+    }
+
+    if (esp_lcd_panel_swap_xy(panelHandle, configuration->swapXY) != ESP_OK) {
+        TT_LOG_E(TAG, "Failed to swap XY ");
+        return false;
+    }
+
+    if (esp_lcd_panel_mirror(panelHandle, configuration->mirrorX, configuration->mirrorY) != ESP_OK) {
+        TT_LOG_E(TAG, "Failed to set panel to mirror");
+        return false;
+    }
+
+    if (esp_lcd_panel_invert_color(panelHandle, configuration->invertColor) != ESP_OK) {
+        TT_LOG_E(TAG, "Failed to set panel to invert");
+        return false;
+    }
+
+    if (esp_lcd_panel_disp_on_off(panelHandle, true) != ESP_OK) {
+        TT_LOG_E(TAG, "Failed to turn display on");
+        return false;
+    }
+
+    const lvgl_port_display_cfg_t disp_cfg = {
+        .io_handle = ioHandle,
+        .panel_handle = panelHandle,
+        .control_handle = nullptr,
+        .buffer_size = buffer_size,
+        .double_buffer = false,
+        .trans_size = 0,
+        .hres = configuration->horizontalResolution,
+        .vres = configuration->verticalResolution,
+        .monochrome = false,
+        .rotation = {
+            .swap_xy = configuration->swapXY,
+            .mirror_x = configuration->mirrorX,
+            .mirror_y = configuration->mirrorY,
+        },
+        .color_format = LV_COLOR_FORMAT_RGB565,
+        .flags = {
+            .buff_dma = true,
+            .buff_spiram = false,
+            .sw_rotate = false,
+            .swap_bytes = false,
+            .full_refresh = false,
+            .direct_mode = false
+        }
+    };
+
+    displayHandle = lvgl_port_add_disp(&disp_cfg);
+
+    TT_LOG_I(TAG, "Finished");
+    return displayHandle != nullptr;
+}
+
+bool Ili9488Display::stop() {
+    assert(displayHandle != nullptr);
+
+    lvgl_port_remove_disp(displayHandle);
+
+    if (esp_lcd_panel_del(panelHandle) != ESP_OK) {
+        return false;
+    }
+
+    if (esp_lcd_panel_io_del(ioHandle) != ESP_OK) {
+        return false;
+    }
+
+    displayHandle = nullptr;
+    return true;
+}

Drivers/ILI9488/Source/Ili9488Display.h

@@ -0,0 +1,95 @@
+#pragma once
+
+#include "Tactility/hal/display/DisplayDevice.h"
+
+#include <driver/spi_common.h>
+#include <driver/gpio.h>
+#include <esp_lcd_panel_io.h>
+#include <esp_lcd_types.h>
+#include <functional>
+#include <lvgl.h>
+
+class Ili9488Display final : public tt::hal::display::DisplayDevice {
+
+public:
+
+    class Configuration {
+
+    public:
+
+        Configuration(
+            esp_lcd_spi_bus_handle_t spi_bus_handle,
+            gpio_num_t csPin,
+            gpio_num_t dcPin,
+            unsigned int horizontalResolution,
+            unsigned int verticalResolution,
+            std::shared_ptr<tt::hal::touch::TouchDevice> touch,
+            bool swapXY = false,
+            bool mirrorX = false,
+            bool mirrorY = false,
+            bool invertColor = false,
+            uint32_t bufferSize = 0 // Size in pixel count. 0 means default, which is 1/20 of the screen size
+        ) : spiBusHandle(spi_bus_handle),
+            csPin(csPin),
+            dcPin(dcPin),
+            horizontalResolution(horizontalResolution),
+            verticalResolution(verticalResolution),
+            swapXY(swapXY),
+            mirrorX(mirrorX),
+            mirrorY(mirrorY),
+            invertColor(invertColor),
+            bufferSize(bufferSize),
+            touch(std::move(touch))
+        {}
+
+        esp_lcd_spi_bus_handle_t spiBusHandle;
+        gpio_num_t csPin;
+        gpio_num_t dcPin;
+        gpio_num_t resetPin = GPIO_NUM_NC;
+        unsigned int pixelClockFrequency = 40'000'000; // Hertz
+        size_t transactionQueueDepth = 10;
+        unsigned int horizontalResolution;
+        unsigned int verticalResolution;
+        bool swapXY = false;
+        bool mirrorX = false;
+        bool mirrorY = false;
+        bool invertColor = false;
+        uint32_t bufferSize = 0; // Size in pixel count. 0 means default, which is 1/10 of the screen size
+        std::shared_ptr<tt::hal::touch::TouchDevice> touch;
+        std::function<void(uint8_t)> _Nullable backlightDutyFunction = nullptr;
+    };
+
+private:
+
+    std::unique_ptr<Configuration> configuration;
+    esp_lcd_panel_io_handle_t ioHandle = nullptr;
+    esp_lcd_panel_handle_t panelHandle = nullptr;
+    lv_display_t* displayHandle = nullptr;
+
+public:
+
+    explicit Ili9488Display(std::unique_ptr<Configuration> inConfiguration) : configuration(std::move(inConfiguration)) {
+        assert(configuration != nullptr);
+    }
+
+    std::string getName() const final { return "ILI9488"; }
+    std::string getDescription() const final { return "ILI9488 display"; }
+
+    bool start() final;
+
+    bool stop() final;
+
+    std::shared_ptr<tt::hal::touch::TouchDevice> _Nullable createTouch() final { return configuration->touch; }
+
+    void setBacklightDuty(uint8_t backlightDuty) final {
+        if (configuration->backlightDutyFunction != nullptr) {
+            configuration->backlightDutyFunction(backlightDuty);
+        }
+    }
+
+    bool supportsBacklightDuty() const final { return configuration->backlightDutyFunction != nullptr; }
+
+    lv_display_t* _Nullable getLvglDisplay() const final { return displayHandle; }
+};
+
+std::shared_ptr<tt::hal::display::DisplayDevice> createDisplay();

Tactility/Source/service/gui/Gui.cpp

@@ -40,6 +40,7 @@ Gui* gui_alloc() {
     tt_check(lvgl::lock(1000 / portTICK_PERIOD_MS));
     instance->keyboardGroup = lv_group_create();
     auto* screen_root = lv_scr_act();
+    assert(screen_root != nullptr);
 
     lvgl::obj_set_style_bg_blacken(screen_root);
 

sdkconfig.board.elecrow-crowpanel-advance-35

@@ -0,0 +1,55 @@
+# Software defaults
+# Increase stack size for WiFi (fixes crash after scan)
+CONFIG_ESP_SYSTEM_EVENT_TASK_STACK_SIZE=3072
+CONFIG_LV_FONT_MONTSERRAT_14=y
+CONFIG_LV_FONT_MONTSERRAT_18=y
+CONFIG_LV_USE_USER_DATA=y
+CONFIG_LV_USE_FS_STDIO=y
+CONFIG_LV_FS_STDIO_LETTER=65
+CONFIG_LV_FS_STDIO_PATH=""
+CONFIG_LV_FS_STDIO_CACHE_SIZE=4096
+CONFIG_LV_USE_LODEPNG=y
+CONFIG_LV_USE_BUILTIN_MALLOC=n
+CONFIG_LV_USE_CLIB_MALLOC=y
+CONFIG_LV_USE_MSGBOX=n
+CONFIG_LV_USE_SPINNER=n
+CONFIG_LV_USE_WIN=n
+CONFIG_LV_USE_SNAPSHOT=y
+CONFIG_FREERTOS_HZ=1000
+CONFIG_FREERTOS_TASK_NOTIFICATION_ARRAY_ENTRIES=2
+CONFIG_FREERTOS_SMP=n
+CONFIG_FREERTOS_UNICORE=n
+CONFIG_FREERTOS_TIMER_TASK_STACK_DEPTH=4096
+CONFIG_FREERTOS_USE_TRACE_FACILITY=y
+CONFIG_PARTITION_TABLE_CUSTOM=y
+CONFIG_PARTITION_TABLE_CUSTOM_FILENAME="partitions.csv"
+CONFIG_PARTITION_TABLE_FILENAME="partitions.csv"
+CONFIG_ELF_LOADER_CUSTOMER_SYMBOLS=y
+CONFIG_FATFS_LFN_HEAP=y
+CONFIG_FATFS_VOLUME_COUNT=3
+
+# Hardware: Main
+CONFIG_TT_BOARD_ELECROW_CROWPANEL_ADVANCE_35=y
+CONFIG_TT_BOARD_NAME="CrowPanel Advance 3.5"
+CONFIG_TT_BOARD_ID="crowpanel-advance-35"
+CONFIG_IDF_EXPERIMENTAL_FEATURES=y
+CONFIG_IDF_TARGET="esp32s3"
+CONFIG_ESP_DEFAULT_CPU_FREQ_MHZ_240=y
+CONFIG_ESP32_DEFAULT_CPU_FREQ_240=y
+CONFIG_ESPTOOLPY_FLASHSIZE_16MB=y
+CONFIG_FLASHMODE_QIO=y
+# Hardware: SPI RAM
+CONFIG_ESP32S3_SPIRAM_SUPPORT=y
+CONFIG_SPIRAM_MODE_OCT=y
+CONFIG_SPIRAM_SPEED_120M=y
+CONFIG_SPIRAM_USE_MALLOC=y
+CONFIG_SPIRAM_TRY_ALLOCATE_WIFI_LWIP=y
+# SPI Flash (can set back to 80MHz after ESP-IDF bug is resolved)
+CONFIG_ESPTOOLPY_FLASHFREQ_120M=y
+# LVGL
+# TODO: Update DPI
+CONFIG_LV_DPI_DEF=143
+CONFIG_LV_DISP_DEF_REFR_PERIOD=10
+# USB
+CONFIG_TINYUSB_MSC_ENABLED=y
+CONFIG_TINYUSB_MSC_MOUNT_PATH="/sdcard"