Update CYD-E32R28T and fixed some minor issues

- Disable `DisplayDriver` for `St7701Display` (on CYD 4848)
- Improve `GraphicsDemo`: check for feature capability and show alert dialog if there's an issue
- `DevelopmentService` installs to `/data` instead of `/sdcard`
- Fixed `tt_app_get_data_directory()` and `tt_app_get_data_directory_lvgl()` (C++ to C)
- `tt_kernel.h` now defines `MAX_TICKS`
- `tt_init.cpp` now exports `esp_log()` which is required since ESP-IDF 5.5

.github/workflows/build-firmware.yml

@@ -27,6 +27,15 @@ jobs:
         with:
           board_id: cyd-2432s028r
           arch: esp32
+  cyd-e32r28t:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: "Build"
+        uses: ./.github/actions/build-firmware
+        with:
+          board_id: cyd-e32r28t
+          arch: esp32
   cyd-2432s032c:
     runs-on: ubuntu-latest
     steps:
@@ -179,4 +188,4 @@ jobs:
         uses: ./.github/actions/build-firmware
         with:
           board_id: waveshare-s3-touch-43
-          arch: esp32s3
+          arch: esp32s3

.gitignore

@@ -7,6 +7,7 @@ build-sim/
 cmake-build-*/
 CMakeCache.txt
 *.cbp
+CMakeFiles
 
 release/
 
@@ -17,4 +18,5 @@ managed_components/
 dependencies.lock
 
 .vscode/
+.gitpod.yml
 

App/CMakeLists.txt

@@ -25,4 +25,4 @@ else ()
 
     add_definitions(-D_Nullable=)
     add_definitions(-D_Nonnull=)
-endif ()
+endif ()

App/Kconfig

@@ -15,6 +15,8 @@ menu "Tactility App"
             bool "CYD 2432S024C"
         config TT_BOARD_CYD_2432S028R
             bool "CYD 2432S028R"
+        config TT_BOARD_CYD_E32R28T
+            bool "CYD E32R28T"    
         config TT_BOARD_CYD_2432S032C
             bool "CYD 2432S032C"
         config TT_BOARD_CYD_8048S043C

App/Source/Boards.h

@@ -17,6 +17,9 @@
 #elif defined(CONFIG_TT_BOARD_CYD_2432S028R)
 #include "CYD2432S028R.h"
 #define TT_BOARD_HARDWARE &cyd_2432s028r_config
+#elif defined(CONFIG_TT_BOARD_CYD_E32R28T)
+#include "E32R28T.h"
+#define TT_BOARD_HARDWARE &cyd_e32r28t_config
 #elif defined(CONFIG_TT_BOARD_CYD_2432S032C)
 #include "CYD2432S032C.h"
 #define TT_BOARD_HARDWARE &cyd_2432S032c_config

App/Source/Main.cpp

@@ -28,4 +28,4 @@ void app_main() {
     tt::run(config);
 }
 
-} // extern
+} // extern

Boards/CYD-2432S028R/Source/CYD2432S028R.h

@@ -2,5 +2,5 @@
 
 #include <Tactility/hal/Configuration.h>
 
-// Resitive touch version of the 2.8" yellow board
+// Resistive touch version of the 2.8" yellow board
 extern const tt::hal::Configuration cyd_2432s028r_config;

Boards/CYD-4848S040C/Source/devices/St7701Display.h

@@ -32,4 +32,7 @@ public:
     void setBacklightDuty(uint8_t backlightDuty) override;
 
     bool supportsBacklightDuty() const override { return true; }
+
+    // TODO: Find out why it crashes
+    bool supportsDisplayDriver() const override { return false; }
 };

Boards/CYD-E32R28T/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 ILI934x XPT2046SoftSPI PwmBacklight driver vfs fatfs
+)

Boards/CYD-E32R28T/Source/E32R28T.cpp

@@ -0,0 +1,73 @@
+#include "E32R28T.h"
+#include "devices/SdCard.h"
+#include "devices/Display.h"
+#include <Tactility/lvgl/LvglSync.h>
+#include <PwmBacklight.h>
+
+#define CYD_SPI_TRANSFER_SIZE_LIMIT (240 * 320 / 4 * 2)
+
+static bool initBoot() {
+    return driver::pwmbacklight::init(CYD_BACKLIGHT_PIN);
+}
+
+static tt::hal::DeviceVector createDevices() {
+    return {
+        createDisplay(),
+        createSdCard()
+    };
+}
+
+const tt::hal::Configuration cyd_e32r28t_config = {
+    .initBoot = initBoot,
+    .createDevices = createDevices,
+    .i2c = {},
+    .spi = {
+        tt::hal::spi::Configuration {
+            .device = SPI2_HOST,
+            .dma = SPI_DMA_CH_AUTO,
+            .config = {
+                .mosi_io_num = GPIO_NUM_13,
+                .miso_io_num = GPIO_NUM_12,
+                .sclk_io_num = GPIO_NUM_14,
+                .quadwp_io_num = GPIO_NUM_NC,
+                .quadhd_io_num = GPIO_NUM_NC,
+                .data4_io_num = GPIO_NUM_NC,
+                .data5_io_num = GPIO_NUM_NC,
+                .data6_io_num = GPIO_NUM_NC,
+                .data7_io_num = GPIO_NUM_NC,
+                .data_io_default_level = false,
+                .max_transfer_sz = CYD_SPI_TRANSFER_SIZE_LIMIT,
+                .flags = 0,
+                .isr_cpu_id = ESP_INTR_CPU_AFFINITY_AUTO,
+                .intr_flags = 0
+            },
+            .initMode = tt::hal::spi::InitMode::ByTactility,
+            .isMutable = false,
+            .lock = tt::lvgl::getSyncLock()
+        },
+        tt::hal::spi::Configuration {
+            .device = SPI3_HOST,
+            .dma = SPI_DMA_CH_AUTO,
+            .config = {
+                .mosi_io_num = GPIO_NUM_23,
+                .miso_io_num = GPIO_NUM_19,
+                .sclk_io_num = GPIO_NUM_18,
+                .quadwp_io_num = GPIO_NUM_NC,
+                .quadhd_io_num = GPIO_NUM_NC,
+                .data4_io_num = GPIO_NUM_NC,
+                .data5_io_num = GPIO_NUM_NC,
+                .data6_io_num = GPIO_NUM_NC,
+                .data7_io_num = GPIO_NUM_NC,
+                .data_io_default_level = false,
+                .max_transfer_sz = CYD_SPI_TRANSFER_SIZE_LIMIT,
+                .flags = 0,
+                .isr_cpu_id = ESP_INTR_CPU_AFFINITY_AUTO,
+                .intr_flags = 0
+            },
+            .initMode = tt::hal::spi::InitMode::ByTactility,
+            .isMutable = false,
+            .lock = tt::lvgl::getSyncLock()
+        },
+
+    }
+};

Boards/CYD-E32R28T/Source/E32R28T.h

@@ -0,0 +1,6 @@
+#pragma once
+
+#include <Tactility/hal/Configuration.h>
+
+// Resistive touch version of the waveshare 2.8" yellow board
+extern const tt::hal::Configuration cyd_e32r28t_config;

Boards/CYD-E32R28T/Source/devices/Display.cpp

@@ -0,0 +1,41 @@
+#include "Display.h"
+
+#include <Xpt2046SoftSpi.h>
+#include <Ili934xDisplay.h>
+#include <PwmBacklight.h>
+#include <Tactility/hal/touch/TouchDevice.h>
+
+static std::shared_ptr<tt::hal::touch::TouchDevice> createTouch() {
+    auto config = std::make_unique<Xpt2046SoftSpi::Configuration>(
+        CYD_TOUCH_MOSI_PIN,
+        CYD_TOUCH_MISO_PIN,
+        CYD_TOUCH_SCK_PIN,
+        CYD_TOUCH_CS_PIN,
+        CYD_DISPLAY_HORIZONTAL_RESOLUTION,
+        CYD_DISPLAY_VERTICAL_RESOLUTION,
+        false,
+        true,
+        false
+    );
+
+    return std::make_shared<Xpt2046SoftSpi>(std::move(config));
+}
+
+std::shared_ptr<tt::hal::display::DisplayDevice> createDisplay() {
+    auto configuration = std::make_unique<Ili934xDisplay::Configuration>(
+        CYD_DISPLAY_SPI_HOST,
+        CYD_DISPLAY_PIN_CS,
+        CYD_DISPLAY_PIN_DC,
+        CYD_DISPLAY_HORIZONTAL_RESOLUTION,
+        CYD_DISPLAY_VERTICAL_RESOLUTION,
+        createTouch(),
+        false,
+        true,
+        false,
+        false,
+        0,
+        LCD_RGB_ELEMENT_ORDER_BGR
+    );
+    configuration->backlightDutyFunction = driver::pwmbacklight::setBacklightDuty;
+    return std::make_shared<Ili934xDisplay>(std::move(configuration));
+}

Boards/CYD-E32R28T/Source/devices/Display.h

@@ -0,0 +1,25 @@
+#pragma once
+
+#include <Tactility/hal/display/DisplayDevice.h>
+#include <memory>
+
+// Display
+#define CYD_DISPLAY_SPI_HOST SPI2_HOST
+#define CYD_DISPLAY_PIN_CS GPIO_NUM_15
+#define CYD_DISPLAY_PIN_DC GPIO_NUM_2
+#define CYD_DISPLAY_HORIZONTAL_RESOLUTION 240
+#define CYD_DISPLAY_VERTICAL_RESOLUTION 320
+#define CYD_DISPLAY_DRAW_BUFFER_HEIGHT (CYD_DISPLAY_VERTICAL_RESOLUTION / 10)
+#define CYD_DISPLAY_DRAW_BUFFER_SIZE (CYD_DISPLAY_HORIZONTAL_RESOLUTION * CYD_DISPLAY_DRAW_BUFFER_HEIGHT)
+
+// Touch (Software SPI)
+#define CYD_TOUCH_MISO_PIN GPIO_NUM_39
+#define CYD_TOUCH_MOSI_PIN GPIO_NUM_32
+#define CYD_TOUCH_SCK_PIN GPIO_NUM_25
+#define CYD_TOUCH_CS_PIN GPIO_NUM_33
+#define CYD_TOUCH_IRQ_PIN GPIO_NUM_36
+
+// Backlight
+#define CYD_BACKLIGHT_PIN GPIO_NUM_21
+
+std::shared_ptr<tt::hal::display::DisplayDevice> createDisplay();

Boards/CYD-E32R28T/Source/devices/SdCard.cpp

@@ -0,0 +1,21 @@
+#include "SdCard.h"
+#include <Tactility/hal/sdcard/SpiSdCardDevice.h>
+
+using tt::hal::sdcard::SpiSdCardDevice;
+
+std::shared_ptr<SdCardDevice> createSdCard() {
+    auto configuration = std::make_unique<SpiSdCardDevice::Config>(
+        GPIO_NUM_5,
+        GPIO_NUM_NC,
+        GPIO_NUM_NC,
+        GPIO_NUM_NC,
+        SdCardDevice::MountBehaviour::AtBoot,
+        std::make_shared<tt::Mutex>(),
+        std::vector<gpio_num_t>(),
+        SPI3_HOST
+    );
+
+    return std::make_shared<SpiSdCardDevice>(
+        std::move(configuration)
+    );
+}

Boards/CYD-E32R28T/Source/devices/SdCard.h

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

Buildscripts/board.cmake

@@ -24,7 +24,9 @@ function(INIT_TACTILITY_GLOBALS SDKCONFIG_FILE)
     if (board_id STREQUAL "cyd-2432s024c")
         set(TACTILITY_BOARD_PROJECT CYD-2432S024C)
     elseif (board_id STREQUAL "cyd-2432s028r")
-        set(TACTILITY_BOARD_PROJECT CYD-2432S028R)
+        set(TACTILITY_BOARD_PROJECT CYD-2432S028R)    
+    elseif (board_id STREQUAL "cyd-e32r28t")
+        set(TACTILITY_BOARD_PROJECT CYD-E32R28T)   
     elseif (board_id STREQUAL "cyd-2432s032c")
         set(TACTILITY_BOARD_PROJECT CYD-2432S032C)
     elseif (board_id STREQUAL "cyd-4848s040c")

Documentation/ideas.md

@@ -5,14 +5,17 @@
 - Fix Development service: when no SD card is present, the app fails to install. Consider installing to `/data`
   Note: Change app install to "transfer file" functionality. We can have a proper install when we have app packaging.
   Note: Consider installation path option in interface
-- Update ILI934x to v2.0.1
 - External app loading: Check the version of Tactility and check ESP target hardware to check for compatibility.
 - Make a URL handler. Use it for handling local files. Match file types with apps.
   Create some kind of "intent" handler like on Android.
   The intent can have an action (e.g. view), a URL and an optional bundle.
   The manifest can provide the intent handler
-- App packaging
 - Bug: GraphicsDemo should check if display supports the DisplayDriver interface (and same for touch) and show an AlertDialog error if there's a problem
+- Update ILI934x to v2.0.1
+- App packaging
+- Create an "app install paths" settings app to add/remove paths.
+  Scan these paths on startup.
+  Make the AppList use the scan results.
 
 ## Lower Priority
 

Drivers/EspLcdCompat/Source/EspLcdDisplay.h

@@ -8,7 +8,7 @@
 #include <esp_lvgl_port_disp.h>
 #include <Tactility/Check.h>
 
-class EspLcdDisplay : tt::hal::display::DisplayDevice {
+class EspLcdDisplay : public tt::hal::display::DisplayDevice {
 
     esp_lcd_panel_io_handle_t _Nullable ioHandle = nullptr;
     esp_lcd_panel_handle_t _Nullable panelHandle = nullptr;
@@ -56,7 +56,7 @@ public:
 
     // endregion
 
-    // region NativeDisplay
+    // region DisplayDriver
 
     bool supportsDisplayDriver() const override { return true; }
 

ExternalApps/GraphicsDemo/main/Source/Main.cpp

@@ -5,22 +5,55 @@
 #include <esp_log.h>
 
 #include <tt_app.h>
+#include <tt_app_alertdialog.h>
 #include <tt_lvgl.h>
 
 constexpr auto TAG = "Main";
 
-static void onCreate(AppHandle appHandle, void* data) {
+/** Find a DisplayDevice that supports the DisplayDriver interface */
+static bool findUsableDisplay(DeviceId& deviceId) {
     uint16_t display_count = 0;
+    if (!tt_hal_device_find(DEVICE_TYPE_DISPLAY, &deviceId, &display_count, 1)) {
+        ESP_LOGE(TAG, "No display device found");
+        return false;
+    }
+
+    if (!tt_hal_display_driver_supported(deviceId)) {
+        ESP_LOGE(TAG, "Display doesn't support driver mode");
+        return false;
+    }
+
+    return true;
+}
+
+/** Find a TouchDevice that supports the TouchDriver interface */
+static bool findUsableTouch(DeviceId& deviceId) {
+    uint16_t touch_count = 0;
+    if (!tt_hal_device_find(DEVICE_TYPE_TOUCH, &deviceId, &touch_count, 1)) {
+        ESP_LOGE(TAG, "No touch device found");
+        return false;
+    }
+
+    if (!tt_hal_touch_driver_supported(deviceId)) {
+        ESP_LOGE(TAG, "Touch doesn't support driver mode");
+        return false;
+    }
+
+    return true;
+}
+
+static void onCreate(AppHandle appHandle, void* data) {
     DeviceId display_id;
-    if (!tt_hal_device_find(DEVICE_TYPE_DISPLAY, &display_id, &display_count, 1)) {
-        ESP_LOGI(TAG, "No display device found");
+    if (!findUsableDisplay(display_id)) {
+        tt_app_stop();
+        tt_app_alertdialog_start("Error", "The display doesn't support the required features.", nullptr, 0);
         return;
     }
 
-    uint16_t touch_count = 0;
     DeviceId touch_id;
-    if (!tt_hal_device_find(DEVICE_TYPE_TOUCH, &touch_id, &touch_count, 1)) {
-        ESP_LOGI(TAG, "No touch device found");
+    if (!findUsableTouch(touch_id)) {
+        tt_app_stop();
+        tt_app_alertdialog_start("Error", "The touch driver doesn't support the required features.", nullptr, 0);
         return;
     }
 

Tactility/Source/service/development/DevelopmentService.cpp

@@ -251,7 +251,7 @@ esp_err_t DevelopmentService::handleAppInstall(httpd_req_t* request) {
     content_left -= content_read;
 
     // Write file
-    auto file_path = std::format("/sdcard/{}", filename_entry->second);
+    auto file_path = std::format("/data/{}", filename_entry->second);
     auto* file = fopen(file_path.c_str(), "wb");
     auto file_bytes_written = fwrite(buffer.get(), 1, file_size, file);
     fclose(file);

TactilityC/Include/tt_app.h

@@ -29,7 +29,7 @@ bool tt_app_has_result(AppHandle handle);
  * @param[out] buffer the output buffer (recommended size is 256 bytes)
  * @param[inout] size used as input for maximum buffer size (including null terminator) and is set with the path string length by this function
  */
-void tt_app_get_data_directory(AppPathsHandle handle, char* buffer, size_t& size);
+void tt_app_get_data_directory(AppPathsHandle handle, char* buffer, size_t* size);
 
 /** Get the path to the data directory of this app, with LVGL drive letter prefix applied.
  * The recommended buffer size is 256 bytes.
@@ -37,7 +37,7 @@ void tt_app_get_data_directory(AppPathsHandle handle, char* buffer, size_t& size
  * @param[out] buffer the output buffer (recommended size is 256 bytes)
  * @param[inout] size used as input for maximum buffer size (including null terminator) and is set with the path string length by this function
  */
-void tt_app_get_data_directory_lvgl(AppPathsHandle handle, char* buffer, size_t& size);
+void tt_app_get_data_directory_lvgl(AppPathsHandle handle, char* buffer, size_t* size);
 
 /**
  * Start an app by id.

TactilityC/Include/tt_kernel.h

@@ -8,6 +8,8 @@ extern "C" {
 
 typedef unsigned long TickType;
 
+#define MAX_TICKS INT32_MAX
+
 /**
  * Stall the current task for the specified amount of time.
  * @param milliseconds the time in milliseconds to stall.

TactilityC/Source/tt_app.cpp

@@ -33,38 +33,40 @@ void tt_app_stop() {
     tt::app::stop();
 }
 
-void tt_app_get_data_directory(AppPathsHandle handle, char* buffer, size_t& size) {
+void tt_app_get_data_directory(AppPathsHandle handle, char* buffer, size_t* size) {
     assert(buffer != nullptr);
-    assert(size > 0);
+    assert(size != nullptr);
+    assert(*size > 0);
     auto paths = HANDLE_AS_APP_CONTEXT(handle)->getPaths();
     auto data_path = paths->getDataDirectory();
     auto expected_length = data_path.length() + 1;
-    if (size < expected_length) {
+    if (*size < expected_length) {
         TT_LOG_E(TAG, "Path buffer not large enough (%d < %d)", size, expected_length);
-        size = 0;
+        *size = 0;
         buffer[0] = 0;
         return;
     }
 
     strcpy(buffer, data_path.c_str());
-    size = data_path.length();
+    *size = data_path.length();
 }
 
-void tt_app_get_data_directory_lvgl(AppPathsHandle handle, char* buffer, size_t& size) {
+void tt_app_get_data_directory_lvgl(AppPathsHandle handle, char* buffer, size_t* size) {
     assert(buffer != nullptr);
-    assert(size > 0);
+    assert(size != nullptr);
+    assert(*size > 0);
     auto paths = HANDLE_AS_APP_CONTEXT(handle)->getPaths();
     auto data_path = paths->getDataDirectoryLvgl();
     auto expected_length = data_path.length() + 1;
-    if (size < expected_length) {
+    if (*size < expected_length) {
         TT_LOG_E(TAG, "Path buffer not large enough (%d < %d)", size, expected_length);
-        size = 0;
+        *size = 0;
         buffer[0] = 0;
         return;
     }
 
     strcpy(buffer, data_path.c_str());
-    size = data_path.length();
+    *size = data_path.length();
 }
 
 }

TactilityC/Source/tt_init.cpp

@@ -105,6 +105,7 @@ const esp_elfsym elf_symbols[] {
     ESP_ELFSYM_EXPORT(tolower),
     ESP_ELFSYM_EXPORT(toupper),
     // ESP-IDF
+    ESP_ELFSYM_EXPORT(esp_log),
     ESP_ELFSYM_EXPORT(esp_log_write),
     ESP_ELFSYM_EXPORT(esp_log_timestamp),
     // Tactility

sdkconfig.board.cyd-e32r28t

@@ -0,0 +1,56 @@
+# Software defaults
+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_FATFS_LFN_HEAP=y
+CONFIG_FATFS_VOLUME_COUNT=3
+
+# Hardware: Main
+CONFIG_TT_BOARD_CYD_E32R28T=y
+CONFIG_TT_BOARD_NAME="CYD E32R28T"
+CONFIG_TT_BOARD_ID="cyd-e32r28t"
+CONFIG_IDF_TARGET="esp32"
+CONFIG_ESP_DEFAULT_CPU_FREQ_MHZ_240=y
+CONFIG_ESP32_DEFAULT_CPU_FREQ_240=y
+CONFIG_ESPTOOLPY_FLASHSIZE_4MB=y
+CONFIG_FLASHMODE_QIO=y
+
+# LVGL
+CONFIG_LV_DISP_DEF_REFR_PERIOD=10
+CONFIG_LV_DPI_DEF=130  # Adjusted for 2.8" 240x320 (~130 DPI)
+CONFIG_LVGL_BUFFER_WIDTH=240
+CONFIG_LVGL_BUFFER_HEIGHT=40
+CONFIG_LVGL_COLOR_DEPTH=16
+
+# Drivers
+CONFIG_DISPLAY_DRIVER_ILI9341=y
+CONFIG_TOUCH_DRIVER_XPT2046=y
+CONFIG_TOUCH_CALIBRATION=y
+CONFIG_SD_CARD_ENABLE=y
+
+# Fix for IRAM
+CONFIG_FREERTOS_PLACE_FUNCTIONS_INTO_FLASH=y
+CONFIG_FREERTOS_PLACE_SNAPSHOT_FUNS_INTO_FLASH=y
+CONFIG_HEAP_PLACE_FUNCTION_INTO_FLASH=y
+CONFIG_RINGBUF_PLACE_FUNCTIONS_INTO_FLASH=y