Support for building and running external apps (#112)

2024-12-08 16:46:19 +01:00
parent 42e843b463
commit 415442e410
74 changed files with 2901 additions and 126 deletions
@@ -0,0 +1,126 @@
+#ifdef ESP_PLATFORM
+
+#include "file/File.h"
+#include "ElfApp.h"
+#include "TactilityCore.h"
+#include "esp_elf.h"
+
+#include "service/loader/Loader.h"
+
+namespace tt::app {
+
+#define TAG "elf_app"
+#define ELF_WRAPPER_APP_ID "ElfWrapper"
+
+static size_t elfManifestSetCount = 0;
+std::unique_ptr<uint8_t[]> elfFileData;
+esp_elf_t elf;
+
+bool startElfApp(const char* filePath) {
+    TT_LOG_I(TAG, "Starting ELF %s", filePath);
+
+    assert(elfFileData == nullptr);
+
+    size_t size = 0;
+    elfFileData = file::readBinary(filePath, size);
+    if (elfFileData == nullptr) {
+        return false;
+    }
+
+    if (esp_elf_init(&elf) < 0) {
+        TT_LOG_E(TAG, "Failed to initialize");
+        return false;
+    }
+
+    if (esp_elf_relocate(&elf, elfFileData.get()) < 0) {
+        TT_LOG_E(TAG, "Failed to load executable");
+        return false;
+    }
+
+    int argc = 0;
+    char* argv[] = {};
+
+    size_t manifest_set_count = elfManifestSetCount;
+    if (esp_elf_request(&elf, 0, argc, argv) < 0) {
+        TT_LOG_W(TAG, "Executable returned error code");
+        return false;
+    }
+
+    if (elfManifestSetCount > manifest_set_count) {
+        service::loader::startApp(ELF_WRAPPER_APP_ID);
+    } else {
+        TT_LOG_W(TAG, "App did not set manifest to run - cleaning up ELF");
+        esp_elf_deinit(&elf);
+        elfFileData = nullptr;
+    }
+
+    return true;
+}
+
+static void onStart(AppContext& app) {}
+static void onStop(AppContext& app) {}
+static void onShow(AppContext& app, lv_obj_t* parent) {}
+static void onHide(AppContext& app) {}
+static void onResult(AppContext& app, Result result, const Bundle& resultBundle) {}
+
+AppManifest elfManifest = {
+    .id = "",
+    .name = "",
+    .type = TypeHidden,
+    .onStart = onStart,
+    .onStop = onStop,
+    .onShow = onShow,
+    .onHide = onHide,
+    .onResult = onResult
+};
+
+static void onStartWrapper(AppContext& app) {
+    elfManifest.onStart(app);
+}
+
+static void onStopWrapper(AppContext& app) {
+    elfManifest.onStop(app);
+    TT_LOG_I(TAG, "Cleaning up ELF");
+    esp_elf_deinit(&elf);
+    elfFileData = nullptr;
+}
+
+static void onShowWrapper(AppContext& app, lv_obj_t* parent) {
+    elfManifest.onShow(app, parent);
+}
+
+static void onHideWrapper(AppContext& app) {
+    elfManifest.onHide(app);
+}
+
+static void onResultWrapper(AppContext& app, Result result, const Bundle& bundle) {
+    elfManifest.onResult(app, result, bundle);
+}
+
+AppManifest elfWrapperManifest = {
+    .id = ELF_WRAPPER_APP_ID,
+    .name = "ELF Wrapper",
+    .type = TypeHidden,
+    .onStart = onStartWrapper,
+    .onStop = onStopWrapper,
+    .onShow = onShowWrapper,
+    .onHide = onHideWrapper,
+    .onResult = onResultWrapper
+};
+
+void setElfAppManifest(const AppManifest& manifest) {
+    elfManifest.id = manifest.id;
+    elfManifest.name = manifest.name;
+    elfWrapperManifest.name = manifest.name;
+    elfManifest.onStart = manifest.onStart;
+    elfManifest.onStop = manifest.onStop;
+    elfManifest.onShow = manifest.onShow;
+    elfManifest.onHide = manifest.onHide;
+    elfManifest.onResult = manifest.onResult;
+
+    elfManifestSetCount++;
+}
+
+} // namespace
+
+#endif // ESP_PLATFORM