CVS Spam v0.2 (#2357)

* Make the CVS Spam app

CHAOS.C16 is over 100mb and send to JLynx to be included in the sdcard ZIP file.

* indentation

* C16 files are perfect. Disregard any previous files for sdcard/CVSFILES. CHAOS now randomizes files to save space.

---------

Co-authored-by: sommermorgentraum <24917424+zxkmm@users.noreply.github.com>

firmware/application/external/cvs_spam/cvs_spam.cpp

@@ -8,6 +8,7 @@
 #include "metadata_file.hpp"
 #include "oversample.hpp"
 #include "io_convert.hpp"
+#include "lfsr_random.hpp"
 
 using namespace portapack;
 
@@ -80,7 +81,7 @@ void CVSSpamView::start_tx(const uint32_t id) {
         return;
     }
 
-    const uint32_t sample_rate = 500000;
+    const uint32_t sample_rate = 250000;
 
     current_file = cvsfiles_dir / file_list[id].filename();
 
@@ -149,36 +150,36 @@ void CVSSpamView::start_tx(const uint32_t id) {
         });
 }
 
-void CVSSpamView::start_chaos_tx() {
+void CVSSpamView::start_random_tx() {
     if (is_active()) {
         stop_tx();
         return;
     }
 
-    const std::filesystem::path chaos_file_path = cvsfiles_dir / "chaos.c16";
-    const uint32_t sample_rate = 500000;
-
-    File capture_file;
-    auto open_error = capture_file.open(chaos_file_path);
-    if (open_error) {
-        file_error(chaos_file_path,
-                   "Cannot open CHAOS.C16.\n"
-                   "Initial file check failed.\n"
-                   "Path: " +
-                       cvsfiles_dir.string() +
-                       "\n"
-                       "Error: " +
-                       std::to_string(static_cast<uint32_t>(open_error)));
+    if (file_list.empty()) {
+        nav_.display_modal("Error", "No files found!");
         return;
     }
 
-    auto metadata_path = get_metadata_path(chaos_file_path);
+    lfsr_v = lfsr_iterate(lfsr_v);
+    size_t random_index = lfsr_v % file_list.size();
+
+    const uint32_t sample_rate = 250000;
+    current_file = cvsfiles_dir / file_list[random_index].filename();
+
+    File capture_file;
+    auto open_error = capture_file.open(current_file);
+    if (open_error) {
+        file_error(current_file, "Cannot open file.\nInitial check failed.");
+        return;
+    }
+
+    auto metadata_path = get_metadata_path(current_file);
     auto metadata = read_metadata_file(metadata_path);
     if (!metadata) {
         metadata = capture_metadata{transmitter_model.target_frequency(), sample_rate};
     }
 
-    auto file_size = capture_file.size();
     capture_file.close();
 
     replay_thread.reset();
@@ -188,18 +189,8 @@ void CVSSpamView::start_chaos_tx() {
     baseband::set_sample_rate(metadata->sample_rate, get_oversample_rate(metadata->sample_rate));
 
     auto reader = std::make_unique<FileConvertReader>();
-    if (auto error = reader->open(chaos_file_path)) {
-        file_error(chaos_file_path,
-                   "Cannot read CHAOS.C16.\n"
-                   "Check file format/perms.\n"
-                   "Rate: " +
-                       to_string_dec_uint(metadata->sample_rate) +
-                       "\n"
-                       "Size: " +
-                       to_string_dec_uint(file_size) +
-                       "\n"
-                       "Error: " +
-                       std::to_string(static_cast<uint32_t>(error)));
+    if (auto error = reader->open(current_file)) {
+        file_error(current_file, "Cannot read file data.");
         return;
     }
 
@@ -241,9 +232,9 @@ bool CVSSpamView::is_active() const {
 void CVSSpamView::stop_tx() {
     replay_thread.reset();
     transmitter_model.disable();
-    audio::output::stop();
     ready_signal = false;
     thread_sync_complete = false;
+    chaos_mode = false;
     progressbar.set_value(0);
     chThdSleepMilliseconds(50);
 }
@@ -295,7 +286,13 @@ CVSSpamView::CVSSpamView(NavigationView& nav)
     };
 
     button_chaos.on_select = [this](Button&) {
-        start_chaos_tx();
+        if (is_active()) {
+            chaos_mode = false;
+            stop_tx();
+        } else {
+            chaos_mode = true;
+            start_random_tx();
+        }
     };
 
     button_stop.on_select = [this](Button&) {

firmware/application/external/cvs_spam/cvs_spam.hpp

@@ -11,7 +11,6 @@
 #include "baseband_api.hpp"
 #include "ui_language.hpp"
 #include "file_path.hpp"
-#include "audio.hpp"
 
 using namespace portapack;
 
@@ -29,6 +28,9 @@ class CVSSpamView : public View {
     static constexpr size_t read_size = 0x4000;
     static constexpr size_t buffer_count = 3;
 
+    lfsr_word_t lfsr_v = 1;
+    bool chaos_mode{false};
+
     NavigationView& nav_;
     std::unique_ptr<ReplayThread> replay_thread{};
     bool ready_signal{false};
@@ -40,7 +42,7 @@ class CVSSpamView : public View {
     void file_error(const std::filesystem::path& path, const std::string& error_details);
     void refresh_list();
     void start_tx(const uint32_t id);
-    void start_chaos_tx();
+    void start_random_tx();
     void on_tx_progress(const uint32_t progress);
 
     uint32_t page = 1;
@@ -102,12 +104,31 @@ class CVSSpamView : public View {
         [this](const Message* const p) {
             const auto message = *reinterpret_cast<const ReplayThreadDoneMessage*>(p);
             if (message.return_code == ReplayThread::END_OF_FILE) {
-                if (is_active()) {
+                if (chaos_mode) {
+                    replay_thread.reset();
+                    transmitter_model.disable();
+                    ready_signal = false;
+                    lfsr_v = lfsr_iterate(lfsr_v);
+                    size_t random_index = lfsr_v % file_list.size();
+                    menu_view.set_highlighted(random_index);
+                    chThdSleepMilliseconds(100);
+                    start_tx(random_index);
+                } else {
                     thread_sync_complete = true;
                     stop_tx();
                 }
             } else if (message.return_code == ReplayThread::READ_ERROR) {
                 file_error(file_list[menu_view.highlighted_index()], "Read error during playback");
+                if (chaos_mode) {
+                    replay_thread.reset();
+                    transmitter_model.disable();
+                    ready_signal = false;
+                    lfsr_v = lfsr_iterate(lfsr_v);
+                    size_t random_index = lfsr_v % file_list.size();
+                    menu_view.set_highlighted(random_index);
+                    chThdSleepMilliseconds(100);
+                    start_tx(random_index);
+                }
             }
         }};
 };