Improved close call precision

firmware/Makefile

@@ -65,7 +65,7 @@ modules: $(TARGET_BASEBAND).bin $(TARGET_BASEBAND_TX).bin
 	cp $(PATH_BASEBAND_TX).bin ../sdcard/$(PATH_BASEBAND_TX).bin
 
 $(TARGET).bin: modules $(MAKE_SPI_IMAGE) $(TARGET_BOOTSTRAP).bin $(TARGET_HACKRF_FIRMWARE).dfu $(TARGET_BASEBAND_TX)_inc.bin $(TARGET_APPLICATION).bin
-	$(MAKE_SPI_IMAGE) $(TARGET_BOOTSTRAP).bin $(TARGET_HACKRF_FIRMWARE).dfu $(TARGET_BASEBAND)_inc.bin $(TARGET_APPLICATION).bin $(TARGET).bin
+	$(MAKE_SPI_IMAGE) $(TARGET_BOOTSTRAP).bin $(TARGET_HACKRF_FIRMWARE).dfu $(TARGET_BASEBAND_TX)_inc.bin $(TARGET_APPLICATION).bin $(TARGET).bin
 
 $(TARGET_BOOTSTRAP).bin: $(TARGET_BOOTSTRAP).elf
 	$(CP) -O binary $(TARGET_BOOTSTRAP).elf $(TARGET_BOOTSTRAP).bin

firmware/application/baseband_api.cpp

@@ -86,6 +86,15 @@ void shutdown() {
 	shared_memory.baseband_queue.push(shutdown_message);
 }
 
+void spectrum_streaming_start(size_t decimation_factor) {
+	shared_memory.baseband_queue.push_and_wait(
+		SpectrumStreamingConfigMessage {
+			SpectrumStreamingConfigMessage::Mode::Running,
+			decimation_factor
+		}
+	);
+}
+
 void spectrum_streaming_start() {
 	shared_memory.baseband_queue.push_and_wait(
 		SpectrumStreamingConfigMessage {

firmware/application/baseband_api.hpp

@@ -55,6 +55,7 @@ void stop();
 
 void shutdown();
 
+void spectrum_streaming_start(size_t decimation_factor);
 void spectrum_streaming_start();
 void spectrum_streaming_stop();
 

firmware/application/transmitter_model.hpp

@@ -66,7 +66,7 @@ private:
 	uint32_t baseband_bandwidth_ { max2837::filter::bandwidth_minimum };
 	int32_t vga_gain_db_ { 8 };
 	BasebandConfiguration baseband_configuration {
-		.mode = 0,			/* TODO: Enum! */
+		.mode = 0,
 		.sampling_rate = 3072000,
 		.decimation_factor = 1,
 	};

firmware/application/ui_closecall.cpp

@@ -24,10 +24,9 @@
 #include "ui_receiver.hpp"
 
 #include "ch.h"
-#include "evtimer.h"
+#include "time.hpp"
 
 #include "event_m0.hpp"
-#include "ff.h"
 #include "hackrf_gpio.hpp"
 #include "portapack.hpp"
 #include "radio.hpp"
@@ -50,6 +49,7 @@ void CloseCallView::focus() {
 
 CloseCallView::~CloseCallView() {
 	receiver_model.disable();
+	time::signal_tick_second -= signal_token_tick_second;
 }
 
 void CloseCallView::do_detection() {
@@ -224,7 +224,7 @@ void CloseCallView::on_show() {
 		}
 	);
 
-	baseband::spectrum_streaming_start();
+	baseband::spectrum_streaming_start(1);
 }
 
 void CloseCallView::on_hide() {
@@ -286,7 +286,7 @@ void CloseCallView::on_vga_changed(int32_t v_db) {
 	receiver_model.set_vga(v_db);
 }
 
-void CloseCallView::update_rate() {
+void CloseCallView::on_tick_second() {
 	text_rate.set(to_string_dec_uint(scan_counter, 3));
 	scan_counter = 0;
 }
@@ -343,8 +343,8 @@ CloseCallView::CloseCallView(
 		};
 	};
 	
-	field_frequency_max.set_value(receiver_model.tuning_frequency() + 5000000);
+	field_frequency_max.set_value(receiver_model.tuning_frequency() + 2000000);
-	field_frequency_max.set_step(200000);
+	field_frequency_max.set_step(100000);
 	field_frequency_max.on_change = [this](rf::Frequency f) {
 		(void) f;
 		this->on_range_changed();
@@ -373,6 +373,10 @@ CloseCallView::CloseCallView(
 		nav.pop();
 	};
 	
+	signal_token_tick_second = time::signal_tick_second += [this]() {
+		this->on_tick_second();
+	};
+	
 	//audio::output::mute();
 	receiver_model.set_baseband_configuration({
 		.mode = toUType(ReceiverModel::Mode::CloseCall),

firmware/application/ui_closecall.hpp

@@ -43,7 +43,7 @@
 
 namespace ui {
 
-#define CC_SLICE_WIDTH	5000000 //10000000
+#define CC_SLICE_WIDTH	3000000 //10000000
 #define CC_BIN_NB		236
 #define CC_BIN_WIDTH	CC_SLICE_WIDTH/CC_BIN_NB
 
@@ -74,6 +74,7 @@ private:
 	uint8_t slicemax_db[32];		// Todo: Cap max slices !
 	uint8_t slicemax_idx[32];
 	uint8_t scan_counter;
+	SignalToken signal_token_tick_second;
 	bool ignore = true;
 	bool slicing;
 	bool locked = false;
@@ -82,7 +83,7 @@ private:
 	void do_detection();
 	void on_lna_changed(int32_t v_db);
 	void on_vga_changed(int32_t v_db);
-	void update_rate();
+	void on_tick_second();
 	
 	/* |012345678901234567890123456789|
 	 * | Min:      Max:       LNA VGA |

firmware/application/ui_xylos.cpp

@@ -270,7 +270,7 @@ XylosView::XylosView(
 	receiver_code.set_value(1);
 	header_code_a.set_value(0);
 	header_code_b.set_value(0);
-	options_freq.set_selected_index(5);
+	options_freq.set_selected_index(6);		// 5 ! DEBUG
 	
 	checkbox_wcsubfamily.set_value(true);
 	checkbox_wcid.set_value(true);
@@ -331,13 +331,15 @@ XylosView::XylosView(
 	
 	button_transmit.set_style(&style_val);
 	
-	button_txtest.on_select = [this,&transmitter_model](Button&) {
+	XylosView::upd_message();
+	
+	button_txtest.on_select = [this](Button&) {
 		const uint8_t ccirtest[21] = { 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,14,13,12,11,0xFF };
 		if (txing == false) {
 			EventDispatcher::message_map().unregister_handler(Message::ID::TXDone);
 			
 			EventDispatcher::message_map().register_handler(Message::ID::TXDone,
-				[this,&transmitter_model](Message* const p) {
+				[this](Message* const p) {
 					const auto message = static_cast<const TXDoneMessage*>(p);
 					if (message->n == 25) {
 						audio::headphone::set_volume(volume_t::decibel(0 - 99) + audio::headphone::volume_range().max);
@@ -364,14 +366,14 @@ XylosView::XylosView(
 		}
 	};
 
-	button_transmit.on_select = [this,&transmitter_model](Button&) {
+	button_transmit.on_select = [this](Button&) {
 		if (txing == false) {
 			upd_message();
 			
 			EventDispatcher::message_map().unregister_handler(Message::ID::TXDone);
 			
 			EventDispatcher::message_map().register_handler(Message::ID::TXDone,
-				[this,&transmitter_model](Message* const p) {
+				[this](Message* const p) {
 					uint8_t c;
 					char progress[21];
 					const auto message = static_cast<const TXDoneMessage*>(p);
@@ -390,7 +392,7 @@ XylosView::XylosView(
 							journuit();
 						}
 					} else {
-						for (c=0;c<message->n;c++)
+						for (c=0;c<message->n;c++)		// Todo: Use progressbar !
 							progress[c] = ' ';
 						progress[c] = '.';
 						progress[++c] = 0;

firmware/baseband-tx/baseband_thread.cpp

@@ -85,7 +85,7 @@ void BasebandThread::run() {
 	const auto baseband_buffer = std::make_unique<std::array<baseband::sample_t, 8192>>();
 	baseband::dma::configure(
 		baseband_buffer->data(),
-		direction()
+		baseband::Direction::Transmit
 	);
 	//baseband::dma::allocate(4, 2048);
 
@@ -98,7 +98,7 @@ void BasebandThread::run() {
 
 	while(true) {
 		// TODO: Place correct sampling rate into buffer returned here:
-		const auto buffer_tmp = baseband::dma::wait_for_rx_buffer();
+		const auto buffer_tmp = baseband::dma::wait_for_tx_buffer();
 		if( buffer_tmp ) {
 			buffer_c8_t buffer {
 				buffer_tmp.p, buffer_tmp.count, baseband_configuration.sampling_rate
@@ -139,8 +139,8 @@ void BasebandThread::disable() {
 
 void BasebandThread::enable() {
 	if( baseband_processor ) {
-		baseband_sgpio.configure(direction());
+		baseband_sgpio.configure(baseband::Direction::Transmit);
-		baseband::dma::enable(direction());
+		baseband::dma::enable(baseband::Direction::Transmit);
 		baseband_sgpio.streaming_enable();
 	}
 }

firmware/baseband-tx/baseband_thread.hpp

@@ -33,12 +33,6 @@ public:
 	Thread* start(const tprio_t priority);
 
 	void on_message(const Message* const message);
-	
-	// This getter should die, it's just here to leak information to code that
-	// isn't in the right place to begin with.
-	baseband::Direction direction() const {
-		return baseband::Direction::Transmit;
-	}
 
 	void wait_for_switch(void);
 

firmware/baseband-tx/proc_xylos.cpp

@@ -30,16 +30,11 @@
 
 #include <cstdint>
 
-// 1990 1131 1201 1275 1357 ...
-
-// 14 13 12 11:
-// 2108 989 2259 931
-
 void XylosProcessor::execute(const buffer_c8_t& buffer) {
 	
 	// This is called at 1536000/2048 = 750Hz
 	
-	ai = 0;
+	// ai = 0;
 	
 	for (size_t i = 0; i<buffer.count; i++) {
 		
@@ -65,7 +60,7 @@ void XylosProcessor::execute(const buffer_c8_t& buffer) {
 				sample_count++;
 			}
 			
-			aphase += ccir_phases[digit];
+			aphase += ccir_phases[digit];		// DEBUG
 		} else {
 			s++;
 		}
@@ -73,15 +68,15 @@ void XylosProcessor::execute(const buffer_c8_t& buffer) {
 		sample = (sine_table_f32[(aphase & 0x03FF0000)>>18]*255);
 		
 		// Audio preview sample generation: 1536000/48000 = 32
-		if (as >= 31) {
+		/*if (as >= 31) {
 			as = 0;
 			audio[ai++] = sample * 128;
 		} else {
 			as++;
-		}
+		}*/
 		
 		//FM
-		frq = sample * 300; // ~10kHz wide
+		frq = sample * 1000; // ~10kHz wide
 		
 		phase = (phase + frq);
 		sphase = phase + (256<<16);

firmware/baseband-tx/proc_xylos.hpp

@@ -39,10 +39,10 @@ public:
 	void execute(const buffer_c8_t& buffer) override;
 
 private:
-	int16_t audio_data[64];
+	/*int16_t audio_data[64];
 	
 	std::array<int16_t, 64> audio;
-	/*const buffer_s16_t audio_buffer {
+	const buffer_s16_t audio_buffer {
 		audio.data(),
 		audio.size()
 	};*/
@@ -75,7 +75,7 @@ private:
 	int32_t sample, frq;
 	TXDoneMessage message;
 	
-	AudioOutput audio_output;
+	//AudioOutput audio_output;
 };
 
 #endif

firmware/baseband/Makefile

@@ -144,6 +144,7 @@ CPPSRC = main.cpp \
          proc_wfm_audio.cpp \
          proc_ais.cpp \
          proc_wideband_spectrum.cpp \
+         proc_closecall.cpp \
          proc_tpms.cpp \
          proc_ert.cpp \
          proc_capture.cpp \

firmware/baseband/baseband_thread.cpp

@@ -36,6 +36,7 @@
 #include "proc_wfm_audio.hpp"
 #include "proc_ais.hpp"
 #include "proc_wideband_spectrum.hpp"
+#include "proc_closecall.hpp"
 #include "proc_tpms.hpp"
 #include "proc_ert.hpp"
 #include "proc_capture.hpp"
@@ -132,7 +133,7 @@ BasebandProcessor* BasebandThread::create_processor(const int32_t mode) {
 	case 5:		return new TPMSProcessor();
 	case 6:		return new ERTProcessor();
 	case 7:		return new CaptureProcessor();
-	case 10:	return new WidebandSpectrum();	// Close call
+	case 10:	return new CloseCallProcessor();
 	default:	return nullptr;
 	}
 }

firmware/baseband/proc_closecall.cpp

@@ -0,0 +1,72 @@
+/*
+ * Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
+ *
+ * This file is part of PortaPack.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include "proc_closecall.hpp"
+
+#include "event_m4.hpp"
+
+#include <cstdint>
+#include <cstddef>
+
+#include <array>
+
+void CloseCallProcessor::execute(const buffer_c8_t& buffer) {
+	// 2048 complex8_t samples per buffer.
+	// 102.4us per buffer. 20480 instruction cycles per buffer.
+
+	if( phase == 0 ) {
+		std::fill(spectrum.begin(), spectrum.end(), 0);
+	}
+
+	for(size_t i=0; i<spectrum.size(); i++) {
+		// TODO: Removed window-presum windowing, due to lack of available code RAM.
+		// TODO: Apply window to improve spectrum bin sidelobes.
+		spectrum[i] += buffer.p[i +    0];
+		spectrum[i] += buffer.p[i + 1024];
+	}
+
+	if( phase == 127 ) {
+		const buffer_c16_t buffer_c16 {
+			spectrum.data(),
+			spectrum.size(),
+			buffer.sampling_rate
+		};
+		channel_spectrum.feed(
+			buffer_c16,
+			0, 0
+		);
+		phase = 0;
+	} else {
+		phase++;
+	}
+}
+
+void CloseCallProcessor::on_message(const Message* const message) {
+	switch(message->id) {
+	case Message::ID::UpdateSpectrum:
+	case Message::ID::SpectrumStreamingConfig:
+		channel_spectrum.on_message(message);
+		break;
+		
+	default:
+		break;
+	}
+}

firmware/baseband/proc_closecall.hpp

@@ -0,0 +1,48 @@
+/*
+ * Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
+ *
+ * This file is part of PortaPack.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifndef __PROC_CLOSECALLPROCESSOR_H__
+#define __PROC_CLOSECALLPROCESSOR_H__
+
+#include "baseband_processor.hpp"
+#include "spectrum_collector.hpp"
+
+#include "message.hpp"
+
+#include <cstddef>
+#include <array>
+#include <complex>
+
+class CloseCallProcessor : public BasebandProcessor {
+public:
+	void execute(const buffer_c8_t& buffer) override;
+
+	void on_message(const Message* const message) override;
+
+private:
+	SpectrumCollector channel_spectrum;
+
+	std::array<complex16_t, 256> spectrum;
+
+	size_t phase = 0;
+};
+
+#endif/*__PROC_CLOSECALLPROCESSOR_H__*/

firmware/baseband/spectrum_collector.cpp

@@ -47,6 +47,7 @@ void SpectrumCollector::on_message(const Message* const message) {
 }
 
 void SpectrumCollector::set_state(const SpectrumStreamingConfigMessage& message) {
+	set_decimation_factor(message.decimation_factor);
 	if( message.mode == SpectrumStreamingConfigMessage::Mode::Running ) {
 		start();
 	} else {

firmware/common/message.hpp

@@ -237,15 +237,26 @@ public:
 		Stopped = 0,
 		Running = 1,
 	};
-
+	
 	constexpr SpectrumStreamingConfigMessage(
 		Mode mode
 	) : Message { ID::SpectrumStreamingConfig },
-		mode { mode }
+		mode { mode },
+		decimation_factor { 1 }
+	{
+	}
+
+	constexpr SpectrumStreamingConfigMessage(
+		Mode mode,
+		size_t decimation_factor
+	) : Message { ID::SpectrumStreamingConfig },
+		mode { mode },
+		decimation_factor { decimation_factor }
 	{
 	}
 
 	Mode mode { Mode::Stopped };
+	size_t decimation_factor = 1;
 };
 
 struct ChannelSpectrum {

firmware/common/modules.h

@@ -1,2 +1,2 @@
-const char md5_baseband[16] = {0x1a,0x50,0xbc,0xc5,0xf4,0x5a,0x50,0x1b,0x3f,0x88,0x4c,0xb5,0xb3,0x95,0xa9,0x4d,};
+const char md5_baseband[16] = {0x07,0xff,0xf6,0x7f,0x06,0x02,0xd1,0xd7,0x67,0x8f,0x67,0xdc,0xe8,0x36,0xa9,0xc0,};
-const char md5_baseband_tx[16] = {0xf6,0x31,0x51,0xa5,0x0a,0xb1,0x36,0xf8,0xbe,0x4e,0xe2,0x7b,0x84,0xfc,0x62,0xac,};
+const char md5_baseband_tx[16] = {0xe9,0xeb,0x30,0xea,0x3f,0xf5,0xea,0x93,0xf9,0x62,0x1e,0x9c,0x5f,0x29,0xa7,0x95,};