Added back frequency display for CTCSS

Attempted to fix replay, just fixed StreamBuffer read() and added
waterfall display...
Updated binary

firmware/application/analog_audio_app.cpp

@@ -333,12 +333,11 @@ void AnalogAudioView::squelched() {
 }
 
 void AnalogAudioView::handle_coded_squelch(const uint32_t value) {
-	//const std::string value_string = to_string_dec_uint(value / 10) + "." + to_string_dec_uint(value % 10);
 	float diff, min_diff = value;
 	size_t min_idx { 0 };
 	size_t c;
 	
-	for (c = 0; c < KEY_TONES_NB; c++) {
+	for (c = 0; c < tone_keys.size(); c++) {
 		diff = abs(((float)value / 100.0) - tone_keys[c].second);
 		if (diff < min_diff) {
 			min_idx = c;

firmware/application/main.cpp

@@ -27,6 +27,7 @@
 //TEST: Check AFSK transmit end, skips last bits ?
 //TEST: Imperial in whipcalc
 
+//BUG: Crash on rename file with long filename
 //BUG: Auto backlight off doesn't work anymore
 //BUG: CPLD-related rx ok, tx bad, see portapack.cpp lines 214+ to disable CPLD overlay
 //BUG: REPLAY See what's wrong with quality (format, or need for interpolation filter ?)

firmware/application/replay_app.cpp

@@ -51,7 +51,7 @@ ReplayAppView::ReplayAppView(
 		&field_frequency_step,
 		&field_rf_amp,
 		&replay_view,
-		//&waterfall,
+		&waterfall,
 	});
 	
 	replay_view.set_file_list(file_list);
@@ -89,17 +89,16 @@ ReplayAppView::~ReplayAppView() {
 void ReplayAppView::on_hide() {
 	// TODO: Terrible kludge because widget system doesn't notify Waterfall that
 	// it's being shown or hidden.
-	
-	//waterfall.on_hide();
+	waterfall.on_hide();
 	View::on_hide();
 }
 
-/*void ReplayAppView::set_parent_rect(const Rect new_parent_rect) {
+void ReplayAppView::set_parent_rect(const Rect new_parent_rect) {
 	View::set_parent_rect(new_parent_rect);
 
-	const ui::Rect waterfall_rect { 0, header_height, new_parent_rect.width(), static_cast<ui::Dim>(new_parent_rect.height() - header_height) };
+	const ui::Rect waterfall_rect { 0, header_height, new_parent_rect.width(), new_parent_rect.height() - header_height };
 	waterfall.set_parent_rect(waterfall_rect);
-}*/
+}
 
 void ReplayAppView::focus() {
 	if (!file_error) {

firmware/application/replay_app.hpp

@@ -41,7 +41,7 @@ public:
 
 	void on_hide() override;
 
-	//void set_parent_rect(const Rect new_parent_rect) override;
+	void set_parent_rect(const Rect new_parent_rect) override;
 
 	void focus() override;
 
@@ -54,9 +54,6 @@ private:
 	
 	static constexpr ui::Dim header_height = 2 * 16;
 
-	static constexpr uint32_t sampling_rate = 500000;
-	static constexpr uint32_t baseband_bandwidth = 2500000;
-
 	void on_target_frequency_changed(rf::Frequency f);
 
 	rf::Frequency target_frequency() const;
@@ -79,7 +76,7 @@ private:
 		16384, 3
 	};
 
-	//spectrum::WaterfallWidget waterfall { };
+	spectrum::WaterfallWidget waterfall { };
 };
 
 } /* namespace ui */

firmware/application/replay_thread.cpp

@@ -77,14 +77,46 @@ Optional<File::Error> ReplayThread::run() {
 	BasebandReplay replay { &config };
 	BufferExchange buffers { &config };
 	
-	while( !chThdShouldTerminate() ) {
-		auto buffer = buffers.get();
+	StreamBuffer* prefill_buffer { nullptr };
 	
-		auto read_result = reader->read(buffer->data(), buffer->capacity());
-		buffer->set_size(buffer->capacity());
+	// TESTING: Prefill
+	// While empty buffers fifo is not empty...
+	while (!buffers.empty()) {
+		prefill_buffer = buffers.get_prefill();
+		
+		if (prefill_buffer == nullptr) {
+			buffers.put_app(prefill_buffer);
+		} else {
+			size_t blocks = prefill_buffer->capacity() / 512;
+			
+			for (size_t c = 0; c < blocks; c++) {
+				auto read_result = reader->read(&((uint8_t*)prefill_buffer->data())[c * 512], 512);
 				if( read_result.is_error() ) {
 					return read_result.error();
 				}
+			}
+			
+			prefill_buffer->set_size(prefill_buffer->capacity());
+			
+			buffers.put(prefill_buffer);
+			//if (!buffers.put(prefill_buffer)) for(;;) {};
+			
+		}
+	};
+
+	while( !chThdShouldTerminate() ) {
+		auto buffer = buffers.get();
+		
+		size_t blocks = buffer->capacity() / 512;
+		
+		for (size_t c = 0; c < blocks; c++) {
+			auto read_result = reader->read(&((uint8_t*)buffer->data())[c * 512], 512);
+			if( read_result.is_error() ) {
+				return read_result.error();
+			}
+		}
+		
+		buffer->set_size(buffer->capacity());
 		
 		buffers.put(buffer);
 	}

firmware/application/tone_key.cpp

@@ -20,12 +20,12 @@
  * Boston, MA 02110-1301, USA.
  */
 
-#include "tone_key.hpp"
 #include "string_format.hpp"
+#include "tone_key.hpp"
 
 namespace tonekey {
 
-const tone_key_t tone_keys[] = {
+const tone_key_t tone_keys = {
 	{ "None", 0.0 },
 	{ "0 XZ", 67.000 },
 	{ "1 WZ", 69.400 },
@@ -90,14 +90,22 @@ void tone_keys_populate(OptionsField& field) {
 	options_t tone_key_options;
 	std::string tone_name;
 	
-	for (size_t c = 0; c < KEY_TONES_NB; c++) {
-		if (c && (c < 51))
-			tone_name = "CTCSS " + tone_keys[c].first;
-		else
+	for (size_t c = 0; c < tone_keys.size(); c++) {
+		if (c && c < 51) {
+			auto f = tone_keys[c].second;
+			tone_name = "CTCSS " + tone_keys[c].first + " " + to_string_dec_uint(f) + "." + to_string_dec_uint((uint32_t)(f * 10) % 10);
+		} else {
 			tone_name = tone_keys[c].first;
+		}
+		
 		tone_key_options.emplace_back(tone_name, c);
 	}
+	
 	field.set_options(tone_key_options);
 }
 
+float tone_key_frequency(const uint32_t index) {
+	return tone_keys[index].second;
+}
+
 }

firmware/application/tone_key.hpp

@@ -28,15 +28,14 @@
 
 using namespace ui;
 
-#define KEY_TONES_NB	56
-
 namespace tonekey {
 
-using tone_key_t = std::pair<std::string, float>; 
+using tone_key_t = std::vector<std::pair<std::string, float>>;
 
-extern const tone_key_t tone_keys[];
+extern const tone_key_t tone_keys;
 
 void tone_keys_populate(OptionsField& field);
+float tone_key_frequency(const uint32_t index);
 
 }
 

firmware/application/ui_mictx.cpp

@@ -59,7 +59,7 @@ void MicTXView::configure_baseband() {
 		sampling_rate / 20,		// Update vu-meter at 20Hz
 		transmitting ? transmitter_model.channel_bandwidth() : 0,
 		mic_gain_x10,
-		TONES_F2D(tone_keys[tone_key_index].second),
+		TONES_F2D(tone_key_frequency(tone_key_index)),
 		0.2		// 20% mix
 	);
 }

firmware/application/ui_replay_view.cpp

@@ -91,7 +91,7 @@ void ReplayView::set_file_list(const std::vector<std::filesystem::path>& file_li
 	
 	for (const auto& file : file_list) {
 		bbd_file.open("/" + file.string());
-		duration = bbd_file.size() / (2 * 2 * sampling_rate / 4);
+		duration = bbd_file.size() / (2 * 2 * sampling_rate / 8);
 		file_options.emplace_back(file.string().substr(0, 8), duration);
 	}
 	options_files.set_options(file_options);

firmware/application/ui_replay_view.hpp

@@ -105,7 +105,7 @@ private:
 
 	std::unique_ptr<ReplayThread> replay_thread { };
 
-	MessageHandlerRegistration message_handler_capture_thread_error {
+	MessageHandlerRegistration message_handler_replay_thread_error {
 		Message::ID::CaptureThreadDone,
 		[this](const Message* const p) {
 			const auto message = *reinterpret_cast<const ReplayThreadDoneMessage*>(p);

firmware/application/ui_soundboard.cpp

@@ -127,7 +127,7 @@ void SoundBoardView::play_sound(uint16_t id) {
 		divider,
 		number_bw.value() * 1000,
 		10,
-		TONES_F2D(tone_keys[tone_key_index].second),
+		TONES_F2D(tone_key_frequency(tone_key_index)),
 		0.2		// 20% mix
 	);
 }

firmware/baseband/proc_replay.cpp

@@ -21,19 +21,20 @@
  */
 
 #include "proc_replay.hpp"
+#include "sine_table_int8.hpp"
 
 #include "event_m4.hpp"
 
 #include "utility.hpp"
 
 ReplayProcessor::ReplayProcessor() {
-	// TODO: Interpolation filter needed !
+	channel_filter_pass_f = taps_200k_decim_1.pass_frequency_normalized * 1000000;	// 162760.416666667
+	channel_filter_stop_f = taps_200k_decim_1.stop_frequency_normalized * 1000000;	// 337239.583333333
 	
-	/*spectrum_interval_samples = baseband_fs / spectrum_rate_hz;
+	spectrum_interval_samples = (baseband_fs / 8) / spectrum_rate_hz;
 	spectrum_samples = 0;
 
-	channel_spectrum.set_decimation_factor(1);*/
-	
+	channel_spectrum.set_decimation_factor(1);
 }
 
 void ReplayProcessor::execute(const buffer_c8_t& buffer) {
@@ -43,13 +44,13 @@ void ReplayProcessor::execute(const buffer_c8_t& buffer) {
 	
 	// File data is in C16 format, we need C8
 	// File samplerate is 500kHz, we're at 4MHz
-	// iq_buffer can only be 512 samples (RAM limitation)
-	// For a full 2048-sample C8 buffer, we need:
+	// iq_buffer can only be 512 C16 samples (RAM limitation)
+	// To fill up the 2048-sample C8 buffer, we need:
 	// 2048 samples * 2 bytes per sample = 4096 bytes
-	// Since we're oversampling by 4M/500k = 8, we only need 2048/8 = 256 samples from the file
+	// Since we're oversampling by 4M/500k = 8, we only need 2048/8 = 256 samples from the file and duplicate them 8 times each
 	// So 256 * 4 bytes per sample (C16) = 1024 bytes from the file
 	if( stream ) {
-		const size_t bytes_to_read = sizeof(*buffer.p) * 2 * (buffer.count / 8);	// *2 (C16), /8 (oversampling)
+		const size_t bytes_to_read = sizeof(*buffer.p) * 2 * (buffer.count / 8);	// *2 (C16), /8 (oversampling) should be == 1024
 		const auto result = stream->read(iq_buffer.p, bytes_to_read);
 	}
 
@@ -57,25 +58,39 @@ void ReplayProcessor::execute(const buffer_c8_t& buffer) {
 	
 	// Zero-stuff
 	for (size_t i = 0; i < buffer.count; i++) {
-		if (i & 3)
-			buffer.p[i] = { 0, 0 };
-		else
-			buffer.p[i] = { iq_buffer.p[i >> 3].real() >> 8, iq_buffer.p[i >> 3].imag() >> 8 };
+		
+		// DEBUG: This works. Transmits a 1kHz tone
+		/*sample = (sine_table_i8[(tone_phase & 0xFF000000) >> 24]);
+		tone_phase += (1000 * ((1ULL << 32) / baseband_fs));
+		// Do FM
+		delta = sample * 30000 * (0xFFFFFFULL / baseband_fs);
+		phase += delta;
+		sphase = phase + (64 << 24);
+		iq_buffer.p[i >> 3] = { (int16_t)(sine_table_i8[(sphase & 0xFF000000) >> 24]) << 8, (int16_t)(sine_table_i8[(phase & 0xFF000000) >> 24]) << 8 };
+		*/
+		
+		/*if (i & 3)
+			buffer.p[i] = buffer.p[i - 1];
+		else {*/
+			auto re_out = iq_buffer.p[i >> 3].real() >> 8;
+			auto im_out = iq_buffer.p[i >> 3].imag() >> 8;
+			buffer.p[i] = { re_out, im_out };
+		//}
 	}
 	
-	/*spectrum_samples += channel.count;
+	spectrum_samples += buffer.count;
 	if( spectrum_samples >= spectrum_interval_samples ) {
 		spectrum_samples -= spectrum_interval_samples;
-		channel_spectrum.feed(channel, channel_filter_pass_f, channel_filter_stop_f);
-	}*/
+		channel_spectrum.feed(iq_buffer, channel_filter_pass_f, channel_filter_stop_f);
+	}
 }
 
 void ReplayProcessor::on_message(const Message* const message) {
 	switch(message->id) {
-	/*case Message::ID::UpdateSpectrum:
+	case Message::ID::UpdateSpectrum:
 	case Message::ID::SpectrumStreamingConfig:
 		channel_spectrum.on_message(message);
-		break;*/
+		break;
 
 	case Message::ID::ReplayConfig:
 		replay_config(*reinterpret_cast<const ReplayConfigMessage*>(message));

firmware/baseband/proc_replay.hpp

@@ -43,21 +43,28 @@ public:
 
 private:
 	static constexpr size_t baseband_fs = 4000000;
-	//static constexpr auto spectrum_rate_hz = 50.0f;
+	static constexpr auto spectrum_rate_hz = 50.0f;
 
 	BasebandThread baseband_thread { baseband_fs, this, NORMALPRIO + 20, baseband::Direction::Transmit };
 
-	std::array<complex16_t, 256> iq { };	// This fits in just right in allocated RAM
+	std::array<complex16_t, 256> iq { };	// This fits in just right in allocated RAM - Too big ?
 	const buffer_c16_t iq_buffer {
 		iq.data(),
 		iq.size()
 	};
 	
+	uint32_t channel_filter_pass_f = 0;
+	uint32_t channel_filter_stop_f = 0;
+	
+	// DEBUG
+	//uint32_t tone_phase { 0 }, phase { 0 }, delta { 0 }, sphase { 0 };
+	//int8_t sample { 0 };
+
 	std::unique_ptr<StreamOutput> stream { };
 
-	/*SpectrumCollector channel_spectrum;
+	SpectrumCollector channel_spectrum { };
 	size_t spectrum_interval_samples = 0;
-	size_t spectrum_samples = 0;*/
+	size_t spectrum_samples = 0;
 
 	void replay_config(const ReplayConfigMessage& message);
 };

firmware/baseband/stream_output.cpp

@@ -35,7 +35,9 @@ StreamOutput::StreamOutput(ReplayConfig* const config) :
 	config->fifo_buffers_full = &fifo_buffers_full;
 
 	for(size_t i=0; i<config->buffer_count; i++) {
+		// Set buffers to point consecutively in previously allocated unique_ptr "data"
 		buffers[i] = { &(data.get()[i * config->read_size]), config->read_size };
+		// Put all buffer pointers in the "empty buffer" FIFO
 		fifo_buffers_empty.in(&buffers[i]);
 	}
 }
@@ -49,6 +51,8 @@ size_t StreamOutput::read(void* const data, const size_t length) {
 			// We need a full buffer...
 			if( !fifo_buffers_full.out(active_buffer) ) {
 				// ...but none are available. Hole in transmission (inform app and stop ?)
+				//active_buffer = nullptr;
+				//creg::m4txevent::assert();
 				break;
 			}
 		}

firmware/common/buffer_exchange.cpp

@@ -69,3 +69,10 @@ StreamBuffer* BufferExchange::get(FIFO<StreamBuffer*>* fifo) {
 		chSysUnlock();
 	}
 }
+
+StreamBuffer* BufferExchange::get_prefill(FIFO<StreamBuffer*>* fifo) {
+	StreamBuffer* p { nullptr };
+	fifo->out(p);
+	
+	return p;
+}

firmware/common/buffer_exchange.hpp

@@ -47,9 +47,18 @@ public:
 		return get(fifo_buffers_for_application);
 	}
 	
+	StreamBuffer* get_prefill() {
+		return get_prefill(fifo_buffers_for_application);
+	}
+
 	bool put(StreamBuffer* const p) {
 		return fifo_buffers_for_baseband->in(p);
 	}
+	
+	// TESTING...
+	bool put_app(StreamBuffer* const p) {
+		return fifo_buffers_for_application->in(p);
+	}
 #endif
 
 #if defined(LPC43XX_M4)
@@ -99,4 +108,6 @@ private:
 	}
 
 	StreamBuffer* get(FIFO<StreamBuffer*>* fifo);
+	
+	StreamBuffer* get_prefill(FIFO<StreamBuffer*>* fifo);
 };

firmware/common/message.hpp

@@ -541,7 +541,7 @@ public:
 	
 	size_t read(void* p, const size_t count) {
 		const auto copy_size = std::min(used_, count);
-		memcpy(p, &data_[used_ - copy_size], copy_size);
+		memcpy(p, &data_[capacity_ - used_], copy_size);
 		used_ -= copy_size;
 		return copy_size;
 	}