Implement crash handler and diagnostics app (#119)

2024-12-12 22:38:48 +01:00
parent 74a53b2735
commit 51c6aaa428
38 changed files with 3717 additions and 24 deletions
@@ -0,0 +1,121 @@
+#ifdef ESP_PLATFORM
+
+#include <esp_private/panic_internal.h>
+#include "lvgl.h"
+#include "lvgl/Statusbar.h"
+#include "service/loader/Loader.h"
+#include "qrcode.h"
+#include "QrHelpers.h"
+#include "QrUrl.h"
+
+#define TAG "crash_diagnostics"
+
+namespace tt::app::crashdiagnostics {
+
+void onContinuePressed(TT_UNUSED lv_event_t* event) {
+    tt::service::loader::stopApp();
+    tt::service::loader::startApp("Desktop");
+}
+
+static void onShow(TT_UNUSED AppContext& app, lv_obj_t* parent) {
+    auto* display = lv_obj_get_display(parent);
+    int32_t parent_height = lv_display_get_vertical_resolution(display) - STATUSBAR_HEIGHT;
+
+    lv_obj_add_event_cb(parent, onContinuePressed, LV_EVENT_CLICKED, nullptr);
+    auto* top_label = lv_label_create(parent);
+    lv_label_set_text(top_label, "Oops! We've crashed ..."); // TODO: Funny messages
+    lv_obj_align(top_label, LV_ALIGN_TOP_MID, 0, 2);
+
+    auto* bottom_label = lv_label_create(parent);
+    lv_label_set_text(bottom_label, "Tap screen to continue");
+    lv_obj_align(bottom_label, LV_ALIGN_BOTTOM_MID, 0, -2);
+
+    std::string url = getUrlFromCrashData();
+    TT_LOG_I(TAG, "%s", url.c_str());
+    size_t url_length = url.length();
+
+    int qr_version;
+    if (!getQrVersionForBinaryDataLength(url_length, qr_version)) {
+        TT_LOG_E(TAG, "QR is too large");
+        service::loader::stopApp();
+        return;
+    }
+
+    TT_LOG_I(TAG, "QR version %d (length: %d)", qr_version, url_length);
+    auto qrcodeData = std::make_shared<uint8_t[]>(qrcode_getBufferSize(qr_version));
+    if (qrcodeData == nullptr) {
+        TT_LOG_E(TAG, "Failed to allocate QR buffer");
+        service::loader::stopApp();
+        return;
+    }
+
+    QRCode qrcode;
+    TT_LOG_I(TAG, "QR init text");
+    if (qrcode_initText(&qrcode, qrcodeData.get(), qr_version, ECC_LOW, url.c_str()) != 0) {
+        TT_LOG_E(TAG, "QR init text  failed");
+        service::loader::stopApp();
+        return;
+    }
+
+    TT_LOG_I(TAG, "QR size: %d", qrcode.size);
+
+    // Calculate QR dot size
+    int32_t top_label_height = lv_obj_get_height(top_label) + 2;
+    int32_t bottom_label_height = lv_obj_get_height(bottom_label) + 2;
+    TT_LOG_I(TAG, "Create canvas");
+    int32_t available_height = parent_height - top_label_height - bottom_label_height;
+    int32_t available_width = lv_display_get_horizontal_resolution(display);
+    int32_t smallest_size = TT_MIN(available_height, available_width);
+    int32_t pixel_size;
+    if (qrcode.size * 2 <= smallest_size) {
+        pixel_size = 2;
+    } else if (qrcode.size <= smallest_size) {
+        pixel_size = 1;
+    } else {
+        TT_LOG_E(TAG, "QR code won't fit screen");
+        service::loader::stopApp();
+        return;
+    }
+
+    auto* canvas = lv_canvas_create(parent);
+    lv_obj_set_size(canvas, pixel_size * qrcode.size, pixel_size * qrcode.size);
+    lv_obj_align(canvas, LV_ALIGN_CENTER, 0, 0);
+    lv_canvas_fill_bg(canvas, lv_color_black(), LV_OPA_COVER);
+    lv_obj_set_content_height(canvas, qrcode.size * pixel_size);
+    lv_obj_set_content_width(canvas, qrcode.size * pixel_size);
+
+    TT_LOG_I(TAG, "Create draw buffer");
+    auto* draw_buf = lv_draw_buf_create(pixel_size * qrcode.size, pixel_size * qrcode.size, LV_COLOR_FORMAT_RGB565, LV_STRIDE_AUTO);
+    if (draw_buf == nullptr) {
+        TT_LOG_E(TAG, "Draw buffer alloc");
+        service::loader::stopApp();
+        return;
+    }
+
+    lv_canvas_set_draw_buf(canvas, draw_buf);
+
+    for (uint8_t y = 0; y < qrcode.size; y++) {
+        for (uint8_t x = 0; x < qrcode.size; x++) {
+            bool colored = qrcode_getModule(&qrcode, x, y);
+            auto color = colored ? lv_color_white() : lv_color_black();
+            int32_t pos_x = x * pixel_size;
+            int32_t pos_y = y * pixel_size;
+            for (int px = 0; px < pixel_size; px++) {
+                for (int py = 0; py < pixel_size; py++) {
+                    lv_canvas_set_px(canvas, pos_x + px, pos_y + py, color, LV_OPA_COVER);
+                }
+            }
+        }
+    }
+}
+
+extern const AppManifest manifest = {
+    .id = "CrashDiagnostics",
+    .name = "Crash Diagnostics",
+    .type = TypeHidden,
+    .onShow = onShow
+};
+
+} // namespace
+
+#endif
@@ -0,0 +1,27 @@
+#include <cstdint>
+#include <cassert>
+#include "QrHelpers.h"
+
+/**
+ * Maps QR version (starting at a fictitious 0)  to the usable byte size for L(ow) CRC checking QR.
+ *
+ * See https://www.qrcode.com/en/about/version.html
+ */
+uint16_t qr_version_binary_sizes[] = {
+    0, 17, 32, 53, 78, 106, 134, 154, 192, 230, // 0 - 9
+    271, 321, 367, 425, 458, 520, 586, 644, 718, 792, // 10-19
+    858, 929, 1003, 1091, 1171, 1273, 1367, 1465, 1528, 1682, // 20-29
+    1732, 1840, 1952, 2068, 2188, 2303, 2431, 2563, 2699, 2809, 2953 // 30-40
+};
+
+bool getQrVersionForBinaryDataLength(size_t inLength, int& outVersion) {
+    static_assert(sizeof(qr_version_binary_sizes) == 41 * sizeof(int16_t));
+    for (int version = 1; version < 41; version++) {
+        if (inLength <= qr_version_binary_sizes[version]) {
+            outVersion = version;
+            return true;
+        }
+    }
+    return false;
+}
+
@@ -0,0 +1,5 @@
+#pragma once
+
+#include <cstdio>
+
+bool getQrVersionForBinaryDataLength(size_t inLength, int& outVersion);
@@ -0,0 +1,43 @@
+#ifdef ESP_TARGET
+
+#include "QrUrl.h"
+
+#include "kernel/PanicHandler.h"
+#include "Log.h"
+
+#include <sstream>
+#include <esp_cpu_utils.h>
+
+std::string getUrlFromCrashData() {
+    auto* crash_data = getRtcCrashData();
+    auto* stack_buffer = (uint32_t*) malloc(crash_data->callstackLength * 2 * sizeof(uint32_t));
+    for (int i = 0; i < crash_data->callstackLength; ++i) {
+        const CallstackFrame&frame = crash_data->callstack[i];
+        uint32_t pc = esp_cpu_process_stack_pc(frame.pc);
+        uint32_t sp = frame.sp;
+        stack_buffer[i * 2] = pc;
+        stack_buffer[(i * 2) + 1] = sp;
+    }
+
+    assert(sizeof(CallstackFrame) == 8);
+
+    std::stringstream stream;
+
+    stream << "https://oops.bytewelder.com?";
+    stream << "i=1"; // Application id
+    stream << "&v=" << TT_VERSION; // Version
+    stream << "&a=" << CONFIG_IDF_TARGET; // Architecture
+    stream << "&s="; // Stacktrace
+
+    for (int i = crash_data->callstackLength - 1; i >= 0; --i) {
+        uint32_t pc = stack_buffer[(i * 2)];
+        uint32_t sp = stack_buffer[(i * 2) + 1];
+        stream << std::hex << pc << std::hex << sp;
+    }
+
+    free(stack_buffer);
+
+    return stream.str();
+}
+
+#endif
@@ -0,0 +1,5 @@
+#pragma once
+
+#include <string>
+
+std::string getUrlFromCrashData();