From 4d842b5fae9f54fde1000266ff562b3d61957509 Mon Sep 17 00:00:00 2001
From: RocketGod <57732082+RocketGod-git@users.noreply.github.com>
Date: Wed, 26 Mar 2025 07:56:27 -0700
Subject: [PATCH] Force 433.92 and remove metadata check (#2599)

* Force 433.92 and remove metadata check: we already know the frequency for all files so don't need a million metadata files to match.
* Variable fixes and move to header
---
 .../external/cvs_spam/cvs_spam.cpp            | 37 +++++--------------
 .../external/cvs_spam/cvs_spam.hpp            |  3 ++
 2 files changed, 12 insertions(+), 28 deletions(-)

diff --git a/firmware/application/external/cvs_spam/cvs_spam.cpp b/firmware/application/external/cvs_spam/cvs_spam.cpp
index 3486d7192..862fe6b52 100644
--- a/firmware/application/external/cvs_spam/cvs_spam.cpp
+++ b/firmware/application/external/cvs_spam/cvs_spam.cpp
@@ -81,8 +81,6 @@ void CVSSpamView::start_tx(const uint32_t id) {
         return;
     }
 
-    const uint32_t sample_rate = 250000;
-
     current_file = cvsfiles_dir / file_list[id].filename();
 
     File capture_file;
@@ -99,20 +97,13 @@ void CVSSpamView::start_tx(const uint32_t id) {
         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();
     transmitter_model.disable();
     ready_signal = false;
 
-    baseband::set_sample_rate(metadata->sample_rate, get_oversample_rate(metadata->sample_rate));
+    baseband::set_sample_rate(SAMPLE_RATE, get_oversample_rate(SAMPLE_RATE));
 
     auto reader = std::make_unique<FileConvertReader>();
     if (auto error = reader->open(current_file)) {
@@ -120,10 +111,7 @@ void CVSSpamView::start_tx(const uint32_t id) {
                    "Cannot read C16 data.\n"
                    "Check file format/perms.\n"
                    "Rate: " +
-                       to_string_dec_uint(metadata->sample_rate) +
-                       "\n"
-                       "Size: " +
-                       to_string_dec_uint(file_size) +
+                       to_string_dec_uint(SAMPLE_RATE) +
                        "\n"
                        "Error: " +
                        std::to_string(static_cast<uint32_t>(error)));
@@ -132,9 +120,9 @@ void CVSSpamView::start_tx(const uint32_t id) {
 
     progressbar.set_value(0);
 
-    transmitter_model.set_sampling_rate(get_actual_sample_rate(metadata->sample_rate));
-    transmitter_model.set_baseband_bandwidth(metadata->sample_rate <= 500000 ? 1750000 : 2500000);
-    transmitter_model.set_target_frequency(metadata->center_frequency);
+    transmitter_model.set_sampling_rate(get_actual_sample_rate(SAMPLE_RATE));
+    transmitter_model.set_baseband_bandwidth(SAMPLE_RATE <= 500000 ? 1750000 : 2500000);
+    transmitter_model.set_target_frequency(TARGET_FREQUENCY);
     transmitter_model.enable();
 
     chThdSleepMilliseconds(100);
@@ -164,7 +152,6 @@ void CVSSpamView::start_random_tx() {
     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;
@@ -174,19 +161,13 @@ void CVSSpamView::start_random_tx() {
         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};
-    }
-
     capture_file.close();
 
     replay_thread.reset();
     transmitter_model.disable();
     ready_signal = false;
 
-    baseband::set_sample_rate(metadata->sample_rate, get_oversample_rate(metadata->sample_rate));
+    baseband::set_sample_rate(SAMPLE_RATE, get_oversample_rate(SAMPLE_RATE));
 
     auto reader = std::make_unique<FileConvertReader>();
     if (auto error = reader->open(current_file)) {
@@ -196,9 +177,9 @@ void CVSSpamView::start_random_tx() {
 
     progressbar.set_value(0);
 
-    transmitter_model.set_sampling_rate(get_actual_sample_rate(metadata->sample_rate));
-    transmitter_model.set_baseband_bandwidth(metadata->sample_rate <= 500000 ? 1750000 : 2500000);
-    transmitter_model.set_target_frequency(metadata->center_frequency);
+    transmitter_model.set_sampling_rate(get_actual_sample_rate(SAMPLE_RATE));
+    transmitter_model.set_baseband_bandwidth(SAMPLE_RATE <= 500000 ? 1750000 : 2500000);
+    transmitter_model.set_target_frequency(TARGET_FREQUENCY);
     transmitter_model.enable();
 
     chThdSleepMilliseconds(100);
diff --git a/firmware/application/external/cvs_spam/cvs_spam.hpp b/firmware/application/external/cvs_spam/cvs_spam.hpp
index 77320d4c7..b1528562f 100644
--- a/firmware/application/external/cvs_spam/cvs_spam.hpp
+++ b/firmware/application/external/cvs_spam/cvs_spam.hpp
@@ -16,6 +16,9 @@ using namespace portapack;
 
 namespace ui::external_app::cvs_spam {
 
+constexpr uint32_t SAMPLE_RATE = 250000;
+constexpr uint64_t TARGET_FREQUENCY = 433920000;
+
 class CVSSpamView : public View {
    public:
     explicit CVSSpamView(NavigationView& nav);