New and Improved BLE App. (#1524)

* First BLE work

* Adding new fsk proc WIP

* Reverting ble stuff

* Initial compile working

* more work.

* Adding waterfall for debug

* more edits to debug

* Work to get widgets to show.

* cleanup before attempting diff fsk modulation method

* Temporary debug to learn how decimation scales.

* Tab view for console and spectrum. Spectrum still not working right.

* Fixed spectrum offset.

* Added audio sampling rate increments to freqman

* Added overriding range for frequency field and working off  deviation

* BLE cleanup. Got PDU parsing.

* Parsing CRC

* forgot :

* Removing AA again because cluttering UI

* fix compile

* attempt at throttling.

* WIP changes.

* Decimating by 4 to handle issue with overloading.

* Attempt to parse MAC still needs work.

* Small fixes. MAC still wrong.

* Fixed invalid indexing on Symbols.

* List view of BLE Mac Addresses

* Added Channel Option and improved GUI header.

* renaming to dB and fixing some warnings.

* Advertisements only.

* Initial cut of BLE Advertisement scan app.

* Copyrights

* formatting correctly in association to clang13

* Fixing warning and hiding fsk rx.

* spacing

* Removing some cmake install files that weren't suppose to be there.

* missed some.

* Added name to about.

* Edits for PR review pt.1

* Refactor ORing with 0 doesn't make sense.

* remove  parenthesis

* More PR Review changes.

* Fix compiler error.

* PR Review edits.

* PR review changes.

* Fixes.

* Unneeded ;

* Update ui_about_simple.cpp

---------

Co-authored-by: jLynx <admin@jlynx.net>
This commit is contained in:
Netro 2023-10-23 01:58:14 -04:00 committed by GitHub
parent 0feacfa102
commit b96f14762f
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
20 changed files with 2228 additions and 245 deletions

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@ -244,6 +244,7 @@ set(CPPSRC
apps/ais_app.cpp apps/ais_app.cpp
apps/analog_audio_app.cpp apps/analog_audio_app.cpp
apps/analog_tv_app.cpp apps/analog_tv_app.cpp
apps/ble_app.cpp
apps/capture_app.cpp apps/capture_app.cpp
apps/ert_app.cpp apps/ert_app.cpp
apps/gps_sim_app.cpp apps/gps_sim_app.cpp
@ -268,6 +269,7 @@ set(CPPSRC
apps/ui_fileman.cpp apps/ui_fileman.cpp
apps/ui_flash_utility.cpp apps/ui_flash_utility.cpp
apps/ui_freqman.cpp apps/ui_freqman.cpp
apps/ui_fsk_rx.cpp
apps/ui_iq_trim.cpp apps/ui_iq_trim.cpp
apps/ui_jammer.cpp apps/ui_jammer.cpp
# apps/ui_keyfob.cpp # apps/ui_keyfob.cpp

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@ -0,0 +1,383 @@
/*
* Copyright (C) 2014 Jared Boone, ShareBrained Technology, Inc.
* Copyright (C) 2017 Furrtek
* Copyright (C) 2023 TJ Baginski
*
* 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 "ble_app.hpp"
#include "ui_modemsetup.hpp"
#include "modems.hpp"
#include "audio.hpp"
#include "rtc_time.hpp"
#include "baseband_api.hpp"
#include "string_format.hpp"
#include "portapack_persistent_memory.hpp"
using namespace portapack;
using namespace modems;
void BLELogger::log_raw_data(const std::string& data) {
log_file.write_entry(data);
}
std::string pad_string_with_spaces(int snakes) {
std::string paddedStr(snakes, ' ');
return paddedStr;
}
namespace ui {
template <>
void RecentEntriesTable<BleRecentEntries>::draw(
const Entry& entry,
const Rect& target_rect,
Painter& painter,
const Style& style) {
std::string line = to_string_hex(entry.macAddress & 0xFF, 2);
line += ":" + to_string_hex((entry.macAddress >> 8) & 0xFF, 2);
line += ":" + to_string_hex((entry.macAddress >> 16) & 0xFF, 2);
line += ":" + to_string_hex((entry.macAddress >> 24) & 0xFF, 2);
line += ":" + to_string_hex((entry.macAddress >> 32) & 0xFF, 2);
line += ":" + to_string_hex((entry.macAddress >> 40), 2);
// Handle spacing for negative sign.
uint8_t db_spacing = entry.dbValue > 0 ? 7 : 6;
// Pushing single digit values down right justified.
if (entry.dbValue > 9 || entry.dbValue < -9) {
db_spacing--;
}
line += pad_string_with_spaces(db_spacing) + to_string_dec_int(entry.dbValue);
line.resize(target_rect.width() / 8, ' ');
painter.draw_string(target_rect.location(), style, line);
}
BleRecentEntryDetailView::BleRecentEntryDetailView(NavigationView& nav, const BleRecentEntry& entry)
: nav_{nav},
entry_{entry} {
add_children({&button_done,
&labels});
button_done.on_select = [this](const ui::Button&) {
nav_.pop();
};
}
void BleRecentEntryDetailView::update_data() {
}
void BleRecentEntryDetailView::focus() {
button_done.focus();
}
Rect BleRecentEntryDetailView::draw_field(
Painter& painter,
const Rect& draw_rect,
const Style& style,
const std::string& label,
const std::string& value) {
const int label_length_max = 4;
painter.draw_string(Point{draw_rect.left(), draw_rect.top()}, style, label);
painter.draw_string(Point{draw_rect.left() + (label_length_max + 1) * 8, draw_rect.top()}, style, value);
return {draw_rect.left(), draw_rect.top() + draw_rect.height(), draw_rect.width(), draw_rect.height()};
}
void BleRecentEntryDetailView::paint(Painter& painter) {
View::paint(painter);
const auto s = style();
const auto rect = screen_rect();
auto field_rect = Rect{rect.left(), rect.top() + 16, rect.width(), 16};
uint8_t type[total_data_lines];
uint8_t length[total_data_lines];
uint8_t data[total_data_lines][40];
int currentByte = 0;
int currentPacket = 0;
int i = 0;
int j = 0;
int k = 0;
for (currentByte = 0; (currentByte < entry_.packetData.dataLen) && (currentPacket < total_data_lines);) {
length[currentPacket] = entry_.packetData.data[currentByte++];
type[currentPacket] = entry_.packetData.data[currentByte++];
// This should never happen, but in here just in case.
// Break because we can't trust rest of data.
// if (length[currentPacket] > entry_.packetData.dataLen)
// {
// break;
// }
// Subtract 1 because type is part of the length.
for (i = 0; i < length[currentPacket] - 1; i++) {
data[currentPacket][i] = entry_.packetData.data[currentByte++];
}
currentPacket++;
}
for (i = 0; i < currentPacket; i++) {
uint8_t number_data_lines = ceil((float)(length[i] - 1) / 10.0);
uint8_t current_line = 0;
std::array<std::string, total_data_lines> data_strings{};
for (j = 0; (j < (number_data_lines * 10)) && (j < length[i] - 1); j++) {
if ((j / 10) != current_line) {
current_line++;
}
data_strings[current_line] += to_string_hex(data[i][j], 2);
}
// Read the type back to the total length.
field_rect = draw_field(painter, field_rect, s, to_string_hex(length[i]), to_string_hex(type[i]) + pad_string_with_spaces(3) + data_strings[0]);
if (number_data_lines > 1) {
for (k = 1; k < number_data_lines; k++) {
if (data_strings[k].empty()) {
field_rect = draw_field(painter, field_rect, s, "", pad_string_with_spaces(5) + data_strings[k]);
}
}
}
}
}
void BleRecentEntryDetailView::set_entry(const BleRecentEntry& entry) {
entry_ = entry;
set_dirty();
}
static std::uint64_t get_freq_by_channel_number(uint8_t channel_number) {
uint64_t freq_hz;
switch (channel_number) {
case 37:
freq_hz = 2'402'000'000ull;
break;
case 38:
freq_hz = 2'426'000'000ull;
break;
case 39:
freq_hz = 2'480'000'000ull;
break;
case 0 ... 10:
freq_hz = 2'404'000'000ull + channel_number * 2'000'000ull;
break;
case 11 ... 36:
freq_hz = 2'428'000'000ull + (channel_number - 11) * 2'000'000ull;
break;
default:
freq_hz = UINT64_MAX;
}
return freq_hz;
}
void BLERxView::focus() {
field_frequency.focus();
}
BLERxView::BLERxView(NavigationView& nav)
: nav_{nav} {
baseband::run_image(portapack::spi_flash::image_tag_btle_rx);
add_children({&rssi,
&channel,
&field_rf_amp,
&field_lna,
&field_vga,
&options_region,
&field_frequency,
&check_log,
&recent_entries_view,
&recent_entry_detail_view});
recent_entry_detail_view.hidden(true);
recent_entries_view.on_select = [this](const BleRecentEntry& entry) {
nav_.push<BleRecentEntryDetailView>(entry);
};
// field_frequency.set_value(get_freq_by_channel_number(37));
field_frequency.set_step(2000000);
check_log.set_value(logging);
check_log.on_select = [this](Checkbox&, bool v) {
str_log = "";
logging = v;
};
options_region.on_change = [this](size_t, int32_t i) {
field_frequency.set_value(get_freq_by_channel_number(i));
channel_number = i;
baseband::set_btle(channel_number);
};
options_region.set_selected_index(0, true);
logger = std::make_unique<BLELogger>();
if (logger)
logger->append(LOG_ROOT_DIR "/BLELOG_" + to_string_timestamp(rtc_time::now()) + ".TXT");
// Auto-configure modem for LCR RX (will be removed later)
baseband::set_btle(channel_number);
receiver_model.enable();
}
void BLERxView::on_data(BlePacketData* packet) {
std::string str_console = "";
if (!logging) {
str_log = "";
}
switch ((ADV_PDU_TYPE)packet->type) {
case ADV_IND:
str_console += "ADV_IND";
break;
case ADV_DIRECT_IND:
str_console += "ADV_DIRECT_IND";
break;
case ADV_NONCONN_IND:
str_console += "ADV_NONCONN_IND";
break;
case SCAN_REQ:
str_console += "SCAN_REQ";
break;
case SCAN_RSP:
str_console += "SCAN_RSP";
break;
case CONNECT_REQ:
str_console += "CONNECT_REQ";
break;
case ADV_SCAN_IND:
str_console += "ADV_SCAN_IND";
break;
case RESERVED0:
case RESERVED1:
case RESERVED2:
case RESERVED3:
case RESERVED4:
case RESERVED5:
case RESERVED6:
case RESERVED7:
case RESERVED8:
str_console += "RESERVED";
break;
default:
str_console += "UNKNOWN";
break;
}
// str_console += to_string_dec_uint(value);
str_console += " Len: ";
str_console += to_string_dec_uint(packet->size);
str_console += "\n";
str_console += "Mac";
str_console += ":" + to_string_hex(packet->macAddress[0], 2);
str_console += ":" + to_string_hex(packet->macAddress[1], 2);
str_console += ":" + to_string_hex(packet->macAddress[2], 2);
str_console += ":" + to_string_hex(packet->macAddress[3], 2);
str_console += ":" + to_string_hex(packet->macAddress[4], 2);
str_console += ":" + to_string_hex(packet->macAddress[5], 2);
str_console += "\n";
str_console += "Data:";
int i;
for (i = 0; i < packet->dataLen; i++) {
str_console += " " + to_string_hex(packet->data[i], 2);
}
str_console += "\n";
// Start of Packet stuffing.
uint64_t macAddressEncoded = 0;
memcpy(&macAddressEncoded, packet->macAddress, sizeof(uint64_t));
// Masking off the top 2 bytes to avoid invalid keys.
auto& entry = ::on_packet(recent, macAddressEncoded & 0xFFFFFFFFFFFF);
entry.dbValue = packet->max_dB;
entry.packetData.type = packet->type;
entry.packetData.size = packet->size;
entry.packetData.dataLen = packet->dataLen;
entry.packetData.macAddress[0] = packet->macAddress[0];
entry.packetData.macAddress[1] = packet->macAddress[1];
entry.packetData.macAddress[2] = packet->macAddress[2];
entry.packetData.macAddress[3] = packet->macAddress[3];
entry.packetData.macAddress[4] = packet->macAddress[4];
entry.packetData.macAddress[5] = packet->macAddress[5];
for (int i = 0; i < packet->dataLen; i++) {
entry.packetData.data[i] = packet->data[i];
}
// entry.update(packet);
recent_entries_view.set_dirty();
// TODO: Crude hack, should be a more formal listener arrangement...
if (entry.key() == recent_entry_detail_view.entry().key()) {
recent_entry_detail_view.set_entry(entry);
}
// Log at End of Packet.
if (logger && logging) {
logger->log_raw_data(str_console);
}
}
void BLERxView::set_parent_rect(const Rect new_parent_rect) {
View::set_parent_rect(new_parent_rect);
const Rect content_rect{0, header_height, new_parent_rect.width(), new_parent_rect.height() - header_height};
recent_entries_view.set_parent_rect(content_rect);
recent_entry_detail_view.set_parent_rect(content_rect);
}
BLERxView::~BLERxView() {
receiver_model.disable();
baseband::shutdown();
}
// BleRecentEntry
// void BleRecentEntry::update(const BlePacketData * packet)
// {
// }
} /* namespace ui */

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@ -0,0 +1,234 @@
/*
* Copyright (C) 2014 Jared Boone, ShareBrained Technology, Inc.
* Copyright (C) 2017 Furrtek
* Copyright (C) 2023 TJ Baginski
*
* 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 __BLE_APP_H__
#define __BLE_APP_H__
#include "ui.hpp"
#include "ui_navigation.hpp"
#include "ui_receiver.hpp"
#include "ui_freq_field.hpp"
#include "ui_record_view.hpp"
#include "app_settings.hpp"
#include "radio_state.hpp"
#include "log_file.hpp"
#include "utility.hpp"
#include "recent_entries.hpp"
class BLELogger {
public:
Optional<File::Error> append(const std::string& filename) {
return log_file.append(filename);
}
void log_raw_data(const std::string& data);
private:
LogFile log_file{};
};
namespace ui {
typedef enum {
ADV_IND = 0,
ADV_DIRECT_IND = 1,
ADV_NONCONN_IND = 2,
SCAN_REQ = 3,
SCAN_RSP = 4,
CONNECT_REQ = 5,
ADV_SCAN_IND = 6,
RESERVED0 = 7,
RESERVED1 = 8,
RESERVED2 = 9,
RESERVED3 = 10,
RESERVED4 = 11,
RESERVED5 = 12,
RESERVED6 = 13,
RESERVED7 = 14,
RESERVED8 = 15
} ADV_PDU_TYPE;
struct BleRecentEntry {
using Key = uint64_t;
static constexpr Key invalid_key = 0xffffffff;
uint64_t macAddress;
int dbValue;
BlePacketData packetData;
BleRecentEntry()
: BleRecentEntry{0} {
}
BleRecentEntry(
const uint64_t macAddress)
: macAddress{macAddress},
dbValue{},
packetData{} {
}
Key key() const {
return macAddress;
}
// void update(const BlePacketData * packet);
};
using BleRecentEntries = RecentEntries<BleRecentEntry>;
using BleRecentEntriesView = RecentEntriesView<BleRecentEntries>;
class BleRecentEntryDetailView : public View {
public:
BleRecentEntryDetailView(NavigationView& nav, const BleRecentEntry& entry);
void set_entry(const BleRecentEntry& new_entry);
const BleRecentEntry& entry() const { return entry_; };
void update_data();
void focus() override;
void paint(Painter&) override;
private:
NavigationView& nav_;
BleRecentEntry entry_{};
static constexpr uint8_t total_data_lines{5};
Labels labels{
{{0 * 8, 0 * 16}, "Len", Color::light_grey()},
{{5 * 8, 0 * 16}, "Type", Color::light_grey()},
{{10 * 8, 0 * 16}, "Value", Color::light_grey()},
};
Button button_done{
{125, 224, 96, 24},
"Done"};
bool send_updates{false};
Rect draw_field(
Painter& painter,
const Rect& draw_rect,
const Style& style,
const std::string& label,
const std::string& value);
};
class BLERxView : public View {
public:
BLERxView(NavigationView& nav);
~BLERxView();
void set_parent_rect(const Rect new_parent_rect) override;
void paint(Painter&) override{};
void focus() override;
std::string title() const override { return "BLE RX"; };
private:
void on_data(BlePacketData* packetData);
NavigationView& nav_;
RxRadioState radio_state_{
2402000000 /* frequency */,
4000000 /* bandwidth */,
4000000 /* sampling rate */,
ReceiverModel::Mode::WidebandFMAudio};
app_settings::SettingsManager settings_{
"BLE Rx", app_settings::Mode::RX};
uint8_t console_color{0};
uint32_t prev_value{0};
uint8_t channel_number = 37;
static constexpr auto header_height = 12 + 2 * 16;
RFAmpField field_rf_amp{
{16 * 8, 0 * 16}};
LNAGainField field_lna{
{18 * 8, 0 * 16}};
VGAGainField field_vga{
{21 * 8, 0 * 16}};
RSSI rssi{
{24 * 8, 0, 6 * 8, 4}};
Channel channel{
{24 * 8, 5, 6 * 8, 4}};
RxFrequencyField field_frequency{
{6 * 8, 0 * 16},
nav_};
OptionsField options_region{
{0 * 8, 0 * 8},
5,
{{"Ch.37 ", 37},
{"Ch.38", 38},
{"Ch.39", 39}}};
Console console{
{0, 4 * 16, 240, 240}};
Checkbox check_log{
{0 * 8, 1 * 16},
3,
"LOG",
false};
std::string str_log{""};
bool logging{false};
std::unique_ptr<BLELogger> logger{};
// const RecentEntriesColumns columns{{{"Source", 9},
// {"Loc", 6},
// {"Hits", 4},
// {"Time", 8}}};
BleRecentEntries recent{};
const RecentEntriesColumns columns{{
{"Mac Address", 20},
{"dB", 20},
}};
BleRecentEntry entry_{};
BleRecentEntriesView recent_entries_view{columns, recent};
BleRecentEntryDetailView recent_entry_detail_view{nav_, entry_};
MessageHandlerRegistration message_handler_packet{
Message::ID::BlePacket,
[this](Message* const p) {
const auto message = static_cast<const BLEPacketMessage*>(p);
this->on_data(message->packet);
}};
};
} /* namespace ui */
#endif /*__UI_AFSK_RX_H__*/

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@ -37,6 +37,7 @@ void AboutView::update() {
break; break;
case 2: case 2:
console.writeln("NotherNgineer,zxkmm,u-foka"); console.writeln("NotherNgineer,zxkmm,u-foka");
console.writeln("Netro");
console.writeln(""); console.writeln("");
break; break;

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@ -70,7 +70,7 @@ BTLERxView::BTLERxView(NavigationView& nav)
}; };
// Auto-configure modem for LCR RX (will be removed later) // Auto-configure modem for LCR RX (will be removed later)
baseband::set_btle(persistent_memory::modem_baudrate(), 8, 0, false); baseband::set_btle(channel_number);
audio::set_rate(audio::Rate::Hz_24000); audio::set_rate(audio::Rate::Hz_24000);
audio::output::start(); audio::output::start();

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@ -60,6 +60,8 @@ class BTLERxView : public View {
uint8_t console_color{0}; uint8_t console_color{0};
uint32_t prev_value{0}; uint32_t prev_value{0};
static constexpr uint8_t channel_number = 37;
RFAmpField field_rf_amp{ RFAmpField field_rf_amp{
{13 * 8, 0 * 16}}; {13 * 8, 0 * 16}};
LNAGainField field_lna{ LNAGainField field_lna{

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@ -0,0 +1,197 @@
/*
* Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
* Copyright (C) 2016 Furrtek
*
* 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 "ui_fsk_rx.hpp"
#include "audio.hpp"
#include "baseband_api.hpp"
#include "portapack_persistent_memory.hpp"
#include "string_format.hpp"
#include "utility.hpp"
#include "ui_freqman.hpp"
using namespace portapack;
namespace pmem = portapack::persistent_memory;
void FskRxLogger::log_raw_data(const std::string& data, const uint32_t frequency) {
std::string entry = "Raw: F:" + to_string_dec_uint(frequency) + "Hz";
// // Raw hex dump of all the codewords
// for (size_t c = 0; c < 16; c++)
// entry += to_string_hex(packet[c], 8) + " ";
log_file.write_entry(data + entry);
}
void FskRxLogger::log_decoded(Timestamp timestamp, const std::string& text) {
log_file.write_entry(timestamp, text);
}
namespace ui {
//---------------------------------------------------------------------------------------------------------------
// Console View
//---------------------------------------------------------------------------------------------------------------
FskRxAppConsoleView::FskRxAppConsoleView(NavigationView& nav, Rect parent_rect)
: View(parent_rect), nav_{nav} {
add_child(&console);
};
void FskRxAppConsoleView::on_packet(uint32_t value, bool is_data) {
if (is_data) {
console.write(to_string_dec_uint(value) + " ");
}
}
void FskRxAppConsoleView::on_show() {
hidden(false);
}
void FskRxAppConsoleView::on_hide() {
hidden(true);
}
FskRxAppConsoleView::~FskRxAppConsoleView() {
}
//---------------------------------------------------------------------------------------------------------------
// Spectrum View
//---------------------------------------------------------------------------------------------------------------
FskRxAppView::FskRxAppView(NavigationView& nav, Rect parent_rect)
: View(parent_rect), nav_{nav} {
add_child(&waterfall);
hidden(true);
}
FskRxAppView::~FskRxAppView() {
}
void FskRxAppView::focus() {
}
void FskRxAppView::on_show() {
hidden(false);
waterfall.start();
}
void FskRxAppView::on_hide() {
hidden(true);
waterfall.stop();
}
//---------------------------------------------------------------------------------------------------------------
// Base View
//---------------------------------------------------------------------------------------------------------------
FskxRxMainView::FskxRxMainView(NavigationView& nav)
: nav_{nav} {
add_children({&tab_view,
&view_data,
&view_stream,
&labels,
&rssi,
&channel,
&field_rf_amp,
&field_lna,
&field_vga,
&field_frequency,
&deviation_frequency,
&record_view});
baseband::run_image(portapack::spi_flash::image_tag_fskrx);
// DEBUG
record_view.on_error = [&nav](std::string message) {
nav.display_modal("Error", message);
};
deviation_frequency.on_change = [this](rf::Frequency f) {
refresh_ui(f);
};
// Set initial sampling rate
/* Bandwidth of 2FSK is 2 * Deviation */
record_view.set_sampling_rate(initial_deviation * 2);
field_frequency.set_value(initial_target_frequency);
deviation_frequency.set_value(initial_deviation);
logger.append(LOG_ROOT_DIR "/FSKRX.TXT");
baseband::set_fsk(initial_deviation);
audio::output::start();
receiver_model.enable();
}
void FskxRxMainView::handle_decoded(Timestamp timestamp, const std::string& prefix) {
if (logging()) {
logger.log_decoded(timestamp, prefix);
}
}
void FskxRxMainView::refresh_ui(rf::Frequency deviationHz) {
/* Nyquist would imply a sample rate of 2x bandwidth, but because the ADC
* provides 2 values (I,Q), the sample_rate is equal to bandwidth here. */
/* Bandwidth of 2FSK is 2 * Deviation */
auto sample_rate = deviationHz * 2;
/* base_rate (bandwidth) is used for FFT calculation and display LCD, and also in recording writing SD Card rate. */
/* ex. sampling_rate values, 4Mhz, when recording 500 kHz (BW) and fs 8 Mhz, when selected 1 Mhz BW ... */
/* ex. recording 500kHz BW to .C16 file, base_rate clock 500kHz x2(I,Q) x 2 bytes (int signed) =2MB/sec rate SD Card. */
if (!view_stream.hidden()) {
view_stream.waterfall.stop();
}
// record_view determines the correct oversampling to apply and returns the actual sample rate.
// NB: record_view is what actually updates proc_capture baseband settings.
auto actual_sample_rate = record_view.set_sampling_rate(sample_rate);
// Update the radio model with the actual sampling rate.
receiver_model.set_sampling_rate(actual_sample_rate);
// Get suitable anti-aliasing BPF bandwidth for MAX2837 given the actual sample rate.
auto anti_alias_filter_bandwidth = filter_bandwidth_for_sampling_rate(actual_sample_rate);
receiver_model.set_baseband_bandwidth(anti_alias_filter_bandwidth);
if (!view_stream.hidden()) {
view_stream.waterfall.start();
}
}
void FskxRxMainView::focus() {
field_frequency.focus();
}
void FskxRxMainView::set_parent_rect(const Rect new_parent_rect) {
View::set_parent_rect(new_parent_rect);
ui::Rect waterfall_rect{0, 0, new_parent_rect.width(), new_parent_rect.height() - header_height};
view_stream.waterfall.set_parent_rect(waterfall_rect);
}
FskxRxMainView::~FskxRxMainView() {
audio::output::stop();
receiver_model.disable();
baseband::shutdown();
}
} /* namespace ui */

View File

@ -0,0 +1,178 @@
/*
* Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
* Copyright (C) 2018 Furrtek
* Copyright (C) 2023 gullradriel, Nilorea Studio 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 __UI_FSK_RX_H__
#define __UI_FSK_RX_H__
#include "ui_widget.hpp"
#include "ui_freq_field.hpp"
#include "ui_receiver.hpp"
#include "ui_record_view.hpp"
#include "ui_rssi.hpp"
#include "ui_spectrum.hpp"
#include "ui_styles.hpp"
#include "ui_tabview.hpp"
#include "app_settings.hpp"
#include "log_file.hpp"
#include "radio_state.hpp"
#include "pocsag_app.hpp"
#include <functional>
class FskRxLogger {
public:
Optional<File::Error> append(const std::string& filename) {
return log_file.append(filename);
}
void log_raw_data(const std::string& data, const uint32_t frequency);
void log_decoded(Timestamp timestamp, const std::string& text);
private:
LogFile log_file{};
};
namespace ui {
class FskRxAppConsoleView : public View {
public:
FskRxAppConsoleView(NavigationView& nav, Rect parent_rec);
~FskRxAppConsoleView();
std::string title() const override { return "FSK RX Data"; };
void on_packet(uint32_t value, bool is_data);
void on_show() override;
void on_hide() override;
private:
NavigationView& nav_;
Console console{
{0, 0, 240, 224}};
};
class FskRxAppView : public View {
public:
FskRxAppView(NavigationView& nav, Rect parent_rect);
~FskRxAppView();
void focus() override;
void on_show() override;
void on_hide() override;
spectrum::WaterfallView waterfall{};
std::string title() const override { return "FSK RX Stream"; };
private:
NavigationView& nav_;
RxRadioState radio_state_{};
};
class FskxRxMainView : public View {
public:
FskxRxMainView(NavigationView& nav);
~FskxRxMainView();
void focus() override;
void set_parent_rect(const Rect new_parent_rect) override;
std::string title() const override { return "FSK RX"; };
private:
static constexpr uint32_t initial_target_frequency = 902'075'000;
static constexpr ui::Dim header_height = (5 * 16);
uint32_t initial_deviation{3750};
bool logging() const { return false; };
bool logging_raw() const { return false; };
NavigationView& nav_;
Rect view_rect = {0, header_height, 240, 224};
FskRxAppView view_stream{nav_, view_rect};
FskRxAppConsoleView view_data{nav_, view_rect};
TabView tab_view{
{"Data", Color::yellow(), &view_data},
{"Stream", Color::cyan(), &view_stream}};
void refresh_ui(rf::Frequency f);
void on_packet(uint32_t value, bool is_data);
void handle_decoded(Timestamp timestamp, const std::string& prefix);
uint32_t last_address = 0;
FskRxLogger logger{};
uint16_t packet_count = 0;
RxFrequencyField field_frequency{
{0 * 8, 4 * 8},
nav_};
RFAmpField field_rf_amp{
{11 * 8, 2 * 16}};
LNAGainField field_lna{
{13 * 8, 2 * 16}};
VGAGainField field_vga{
{16 * 8, 2 * 16}};
RSSI rssi{
{19 * 8 - 4, 35, 6 * 8, 4}};
Channel channel{
{19 * 8 - 4, 40, 6 * 8, 4}};
Labels labels{
{{0 * 8, 3 * 16}, "Deviation:", Color::light_grey()},
};
FrequencyField deviation_frequency{
{10 * 8, 3 * 16},
{3750, 500000},
};
// DEBUG
RecordView record_view{
{0 * 8, 4 * 16, 30 * 8, 1 * 16},
u"FSKRX_????.C16",
u"FSKRX",
RecordView::FileType::RawS16,
16384,
3};
MessageHandlerRegistration message_handler_packet{
Message::ID::AFSKData,
[this](Message* const p) {
const auto message = static_cast<const AFSKDataMessage*>(p);
this->view_data.on_packet(message->value, message->is_data);
}};
};
} /* namespace ui */
#endif /*__POCSAG_APP_H__*/

View File

@ -149,12 +149,9 @@ void set_aprs(const uint32_t baudrate) {
send_message(&message); send_message(&message);
} }
void set_btle(const uint32_t baudrate, const uint32_t word_length, const uint32_t trigger_value, const bool trigger_word) { void set_btle(uint8_t channel_number) {
const BTLERxConfigureMessage message{ const BTLERxConfigureMessage message{
baudrate, channel_number};
word_length,
trigger_value,
trigger_word};
send_message(&message); send_message(&message);
} }
@ -167,6 +164,17 @@ void set_nrf(const uint32_t baudrate, const uint32_t word_length, const uint32_t
send_message(&message); send_message(&message);
} }
void set_fsk(const size_t deviation) {
const FSKRxConfigureMessage message{
taps_200k_decim_0,
taps_16k0_decim_1,
taps_11k0_channel,
2,
deviation};
send_message(&message);
}
void set_afsk_data(const uint32_t afsk_samples_per_bit, const uint32_t afsk_phase_inc_mark, const uint32_t afsk_phase_inc_space, const uint8_t afsk_repeat, const uint32_t afsk_bw, const uint8_t symbol_count) { void set_afsk_data(const uint32_t afsk_samples_per_bit, const uint32_t afsk_phase_inc_mark, const uint32_t afsk_phase_inc_space, const uint8_t afsk_repeat, const uint32_t afsk_bw, const uint8_t symbol_count) {
const AFSKTxConfigureMessage message{ const AFSKTxConfigureMessage message{
afsk_samples_per_bit, afsk_samples_per_bit,

View File

@ -69,9 +69,10 @@ void set_pitch_rssi(int32_t avg, bool enabled);
void set_afsk_data(const uint32_t afsk_samples_per_bit, const uint32_t afsk_phase_inc_mark, const uint32_t afsk_phase_inc_space, const uint8_t afsk_repeat, const uint32_t afsk_bw, const uint8_t symbol_count); void set_afsk_data(const uint32_t afsk_samples_per_bit, const uint32_t afsk_phase_inc_mark, const uint32_t afsk_phase_inc_space, const uint8_t afsk_repeat, const uint32_t afsk_bw, const uint8_t symbol_count);
void kill_afsk(); void kill_afsk();
void set_afsk(const uint32_t baudrate, const uint32_t word_length, const uint32_t trigger_value, const bool trigger_word); void set_afsk(const uint32_t baudrate, const uint32_t word_length, const uint32_t trigger_value, const bool trigger_word);
void set_fsk(const size_t deviation);
void set_aprs(const uint32_t baudrate); void set_aprs(const uint32_t baudrate);
void set_btle(const uint32_t baudrate, const uint32_t word_length, const uint32_t trigger_value, const bool trigger_word); void set_btle(uint8_t channel_number);
void set_nrf(const uint32_t baudrate, const uint32_t word_length, const uint32_t trigger_value, const bool trigger_word); void set_nrf(const uint32_t baudrate, const uint32_t word_length, const uint32_t trigger_value, const bool trigger_word);

View File

@ -42,6 +42,16 @@ FrequencyField::FrequencyField(
set_focusable(true); set_focusable(true);
} }
FrequencyField::FrequencyField(
const Point parent_pos,
const rf::FrequencyRange range)
: Widget{{parent_pos, {8 * 10, 16}}},
length_{11},
range_{range} {
initial_switch_config_ = get_switches_long_press_config();
set_focusable(true);
}
FrequencyField::~FrequencyField() { FrequencyField::~FrequencyField() {
reset_switch_config(); reset_switch_config();
} }

View File

@ -48,6 +48,7 @@ class FrequencyField : public Widget {
using range_t = rf::FrequencyRange; using range_t = rf::FrequencyRange;
FrequencyField(Point parent_pos); FrequencyField(Point parent_pos);
FrequencyField(Point parent_pos, rf::FrequencyRange range);
~FrequencyField(); ~FrequencyField();
rf::Frequency value() const; rf::Frequency value() const;
@ -66,8 +67,7 @@ class FrequencyField : public Widget {
private: private:
const size_t length_; const size_t length_;
const range_t range_; range_t range_;
rf::Frequency value_{0}; rf::Frequency value_{0};
rf::Frequency step_{25000}; rf::Frequency step_{25000};
uint64_t last_ms_{0}; uint64_t last_ms_{0};

View File

@ -45,6 +45,7 @@
#include "ui_flash_utility.hpp" #include "ui_flash_utility.hpp"
#include "ui_font_fixed_8x16.hpp" #include "ui_font_fixed_8x16.hpp"
#include "ui_freqman.hpp" #include "ui_freqman.hpp"
#include "ui_fsk_rx.hpp"
#include "ui_iq_trim.hpp" #include "ui_iq_trim.hpp"
#include "ui_jammer.hpp" #include "ui_jammer.hpp"
// #include "ui_keyfob.hpp" // #include "ui_keyfob.hpp"
@ -85,6 +86,7 @@
#include "ais_app.hpp" #include "ais_app.hpp"
#include "analog_audio_app.hpp" #include "analog_audio_app.hpp"
#include "analog_tv_app.hpp" #include "analog_tv_app.hpp"
#include "ble_app.hpp"
#include "capture_app.hpp" #include "capture_app.hpp"
#include "ert_app.hpp" #include "ert_app.hpp"
#include "gps_sim_app.hpp" #include "gps_sim_app.hpp"
@ -547,7 +549,8 @@ ReceiversMenuView::ReceiversMenuView(NavigationView& nav) {
{"Analog TV", Color::yellow(), &bitmap_icon_sstv, [&nav]() { nav.push<AnalogTvView>(); }}, {"Analog TV", Color::yellow(), &bitmap_icon_sstv, [&nav]() { nav.push<AnalogTvView>(); }},
{"APRS", Color::green(), &bitmap_icon_aprs, [&nav]() { nav.push<APRSRXView>(); }}, {"APRS", Color::green(), &bitmap_icon_aprs, [&nav]() { nav.push<APRSRXView>(); }},
{"Audio", Color::green(), &bitmap_icon_speaker, [&nav]() { nav.push<AnalogAudioView>(); }}, {"Audio", Color::green(), &bitmap_icon_speaker, [&nav]() { nav.push<AnalogAudioView>(); }},
{"BTLE", Color::yellow(), &bitmap_icon_btle, [&nav]() { nav.push<BTLERxView>(); }}, //{"BTLE", Color::yellow(), &bitmap_icon_btle, [&nav]() { nav.push<BTLERxView>(); }},
{"BLE", Color::yellow(), &bitmap_icon_btle, [&nav]() { nav.push<BLERxView>(); }},
{"ERT Meter", Color::green(), &bitmap_icon_ert, [&nav]() { nav.push<ERTAppView>(); }}, {"ERT Meter", Color::green(), &bitmap_icon_ert, [&nav]() { nav.push<ERTAppView>(); }},
{"Level", Color::green(), &bitmap_icon_options_radio, [&nav]() { nav.push<LevelView>(); }}, {"Level", Color::green(), &bitmap_icon_options_radio, [&nav]() { nav.push<LevelView>(); }},
{"NRF", Color::yellow(), &bitmap_icon_nrf, [&nav]() { nav.push<NRFRxView>(); }}, {"NRF", Color::yellow(), &bitmap_icon_nrf, [&nav]() { nav.push<NRFRxView>(); }},
@ -556,6 +559,7 @@ ReceiversMenuView::ReceiversMenuView(NavigationView& nav) {
{"Recon", Color::green(), &bitmap_icon_scanner, [&nav]() { nav.push<ReconView>(); }}, {"Recon", Color::green(), &bitmap_icon_scanner, [&nav]() { nav.push<ReconView>(); }},
{"Search", Color::yellow(), &bitmap_icon_search, [&nav]() { nav.push<SearchView>(); }}, {"Search", Color::yellow(), &bitmap_icon_search, [&nav]() { nav.push<SearchView>(); }},
{"TPMS Cars", Color::green(), &bitmap_icon_tpms, [&nav]() { nav.push<TPMSAppView>(); }}, {"TPMS Cars", Color::green(), &bitmap_icon_tpms, [&nav]() { nav.push<TPMSAppView>(); }},
// {"FSK RX", Color::yellow(), &bitmap_icon_remote, [&nav]() { nav.push<FskxRxMainView>(); }},
// {"DMR", Color::dark_grey(), &bitmap_icon_dmr, [&nav](){ nav.push<NotImplementedView>(); }}, // {"DMR", Color::dark_grey(), &bitmap_icon_dmr, [&nav](){ nav.push<NotImplementedView>(); }},
// {"SIGFOX", Color::dark_grey(), &bitmap_icon_fox, [&nav](){ nav.push<NotImplementedView>(); }}, // {"SIGFOX", Color::dark_grey(), &bitmap_icon_fox, [&nav](){ nav.push<NotImplementedView>(); }},
// {"LoRa", Color::dark_grey(), &bitmap_icon_lora, [&nav](){ nav.push<NotImplementedView>(); }}, // {"LoRa", Color::dark_grey(), &bitmap_icon_lora, [&nav](){ nav.push<NotImplementedView>(); }},

View File

@ -416,6 +416,13 @@ set(MODE_CPPSRC
) )
DeclareTargets(PFSK fsktx) DeclareTargets(PFSK fsktx)
### FSK RX
set(MODE_CPPSRC
proc_fsk_rx.cpp
)
DeclareTargets(PFSR fskrx)
### Jammer ### Jammer
set(MODE_CPPSRC set(MODE_CPPSRC

View File

@ -2,6 +2,7 @@
* Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc. * Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
* Copyright (C) 2016 Furrtek * Copyright (C) 2016 Furrtek
* Copyright (C) 2020 Shao * Copyright (C) 2020 Shao
* Copyright (C) 2023 TJ Baginski
* *
* This file is part of PortaPack. * This file is part of PortaPack.
* *
@ -26,245 +27,475 @@
#include "event_m4.hpp" #include "event_m4.hpp"
uint32_t BTLERxProcessor::crc_init_reorder(uint32_t crc_init) {
int i;
uint32_t crc_init_tmp, crc_init_input, crc_init_input_tmp;
crc_init_input_tmp = crc_init;
crc_init_input = 0;
crc_init_input = crc_init_input_tmp & 0xFF;
crc_init_input_tmp = (crc_init_input_tmp >> 8);
crc_init_input = ((crc_init_input << 8) | (crc_init_input_tmp & 0xFF));
crc_init_input_tmp = (crc_init_input_tmp >> 8);
crc_init_input = ((crc_init_input << 8) | (crc_init_input_tmp & 0xFF));
crc_init_input = (crc_init_input << 1);
crc_init_tmp = 0;
for (i = 0; i < 24; i++) {
crc_init_input = (crc_init_input >> 1);
crc_init_tmp = ((crc_init_tmp << 1) | (crc_init_input & 0x01));
}
return (crc_init_tmp);
}
uint_fast32_t BTLERxProcessor::crc_update(uint_fast32_t crc, const void* data, size_t data_len) {
const unsigned char* d = (const unsigned char*)data;
unsigned int tbl_idx;
while (data_len--) {
tbl_idx = (crc ^ *d) & 0xff;
crc = (crc_table[tbl_idx] ^ (crc >> 8)) & 0xffffff;
d++;
}
return crc & 0xffffff;
}
uint_fast32_t BTLERxProcessor::crc24_byte(uint8_t* byte_in, int num_byte, uint32_t init_hex) {
uint_fast32_t crc = init_hex;
crc = crc_update(crc, byte_in, num_byte);
return (crc);
}
bool BTLERxProcessor::crc_check(uint8_t* tmp_byte, int body_len, uint32_t crc_init) {
int crc24_checksum;
crc24_checksum = crc24_byte(tmp_byte, body_len, crc_init); // 0x555555 --> 0xaaaaaa. maybe because byte order
checksumReceived = 0;
checksumReceived = ((checksumReceived << 8) | tmp_byte[body_len + 2]);
checksumReceived = ((checksumReceived << 8) | tmp_byte[body_len + 1]);
checksumReceived = ((checksumReceived << 8) | tmp_byte[body_len + 0]);
return (crc24_checksum != checksumReceived);
}
void BTLERxProcessor::scramble_byte(uint8_t* byte_in, int num_byte, const uint8_t* scramble_table_byte, uint8_t* byte_out) {
int i;
for (i = 0; i < num_byte; i++) {
byte_out[i] = byte_in[i] ^ scramble_table_byte[i];
}
}
// void BTLERxProcessor::demod_byte(int num_byte, uint8_t *out_byte)
//{
// int i, j;
// int I0, Q0, I1, Q1;
// uint8_t bit_decision;
// int sample_idx = 0;
// for (i = 0; i < num_byte; i++)
// {
// out_byte[i] = 0;
// for (j = 0; j < 8; j++)
// {
// I0 = dst_buffer.p[sample_idx].real();
// Q0 = dst_buffer.p[sample_idx].imag();
// I1 = dst_buffer.p[sample_idx + 1].real();
// Q1 = dst_buffer.p[sample_idx + 1].imag();
// bit_decision = (I0 * Q1 - I1 * Q0) > 0 ? 1 : 0;
// out_byte[i] = out_byte[i] | (bit_decision << j);
// sample_idx += SAMPLE_PER_SYMBOL;;}
//}
int BTLERxProcessor::parse_adv_pdu_payload_byte(uint8_t* payload_byte, int num_payload_byte, ADV_PDU_TYPE pdu_type, void* adv_pdu_payload) {
// Should at least have 6 bytes for the MAC Address.
// Also ensuring that there is at least 1 byte of data.
if (num_payload_byte <= 6) {
// printf("Error: Payload Too Short (only %d bytes)!\n", num_payload_byte);
return -1;
}
if (pdu_type == ADV_IND || pdu_type == ADV_NONCONN_IND || pdu_type == SCAN_RSP || pdu_type == ADV_SCAN_IND) {
payload_type_0_2_4_6 = (ADV_PDU_PAYLOAD_TYPE_0_2_4_6*)adv_pdu_payload;
macAddress[0] = payload_byte[5];
macAddress[1] = payload_byte[4];
macAddress[2] = payload_byte[3];
macAddress[3] = payload_byte[2];
macAddress[4] = payload_byte[1];
macAddress[5] = payload_byte[0];
memcpy(payload_type_0_2_4_6->Data, payload_byte + 6, num_payload_byte - 6);
}
// Only processing advertisments for right now.
else {
return -1;
}
// else if (pdu_type == ADV_DIRECT_IND || pdu_type == SCAN_REQ)
// {
// if (num_payload_byte != 12)
// {
// //printf("Error: Payload length %d bytes. Need to be 12 for PDU Type %s!\n", num_payload_byte, ADV_PDU_TYPE_STR[pdu_type]);
// return(-1);
// }
// payload_type_1_3 = (ADV_PDU_PAYLOAD_TYPE_1_3 *)adv_pdu_payload;
// //AdvA = reorder_bytes_str( payload_bytes(1 : (2*6)) );
// macAddress[0] = payload_byte[5];
// macAddress[1] = payload_byte[4];
// macAddress[2] = payload_byte[3];
// macAddress[3] = payload_byte[2];
// macAddress[4] = payload_byte[1];
// macAddress[5] = payload_byte[0];
// //InitA = reorder_bytes_str( payload_bytes((2*6+1):end) );
// payload_type_1_3->A1[0] = payload_byte[11];
// payload_type_1_3->A1[1] = payload_byte[10];
// payload_type_1_3->A1[2] = payload_byte[9];
// payload_type_1_3->A1[3] = payload_byte[8];
// payload_type_1_3->A1[4] = payload_byte[7];
// payload_type_1_3->A1[5] = payload_byte[6];
// //payload_parse_result_str = ['AdvA:' AdvA ' InitA:' InitA];
// }
// else if (pdu_type == CONNECT_REQ)
// {
// if (num_payload_byte != 34)
// {
// //printf("Error: Payload length %d bytes. Need to be 34 for PDU Type %s!\n", num_payload_byte, ADV_PDU_TYPE_STR[pdu_type]);
// return(-1);
// }
// payload_type_5 = (ADV_PDU_PAYLOAD_TYPE_5 *)adv_pdu_payload;
// //InitA = reorder_bytes_str( payload_bytes(1 : (2*6)) );
// macAddress[0] = payload_byte[5];
// macAddress[1] = payload_byte[4];
// macAddress[2] = payload_byte[3];
// macAddress[3] = payload_byte[2];
// macAddress[4] = payload_byte[1];
// macAddress[5] = payload_byte[0];
// //AdvA = reorder_bytes_str( payload_bytes((2*6+1):(2*6+2*6)) );
// payload_type_5->AdvA[0] = payload_byte[11];
// payload_type_5->AdvA[1] = payload_byte[10];
// payload_type_5->AdvA[2] = payload_byte[9];
// payload_type_5->AdvA[3] = payload_byte[8];
// payload_type_5->AdvA[4] = payload_byte[7];
// payload_type_5->AdvA[5] = payload_byte[6];
// //AA = reorder_bytes_str( payload_bytes((2*6+2*6+1):(2*6+2*6+2*4)) );
// payload_type_5->AA[0] = payload_byte[15];
// payload_type_5->AA[1] = payload_byte[14];
// payload_type_5->AA[2] = payload_byte[13];
// payload_type_5->AA[3] = payload_byte[12];
// //CRCInit = payload_bytes((2*6+2*6+2*4+1):(2*6+2*6+2*4+2*3));
// payload_type_5->CRCInit = ( payload_byte[16] );
// payload_type_5->CRCInit = ( (payload_type_5->CRCInit << 8) | payload_byte[17] );
// payload_type_5->CRCInit = ( (payload_type_5->CRCInit << 8) | payload_byte[18] );
// //WinSize = payload_bytes((2*6+2*6+2*4+2*3+1):(2*6+2*6+2*4+2*3+2*1));
// payload_type_5->WinSize = payload_byte[19];
// //WinOffset = reorder_bytes_str( payload_bytes((2*6+2*6+2*4+2*3+2*1+1):(2*6+2*6+2*4+2*3+2*1+2*2)) );
// payload_type_5->WinOffset = ( payload_byte[21] );
// payload_type_5->WinOffset = ( (payload_type_5->WinOffset << 8) | payload_byte[20] );
// //Interval = reorder_bytes_str( payload_bytes((2*6+2*6+2*4+2*3+2*1+2*2+1):(2*6+2*6+2*4+2*3+2*1+2*2+2*2)) );
// payload_type_5->Interval = ( payload_byte[23] );
// payload_type_5->Interval = ( (payload_type_5->Interval << 8) | payload_byte[22] );
// //Latency = reorder_bytes_str( payload_bytes((2*6+2*6+2*4+2*3+2*1+2*2+2*2+1):(2*6+2*6+2*4+2*3+2*1+2*2+2*2+2*2)) );
// payload_type_5->Latency = ( payload_byte[25] );
// payload_type_5->Latency = ( (payload_type_5->Latency << 8) | payload_byte[24] );
// //Timeout = reorder_bytes_str( payload_bytes((2*6+2*6+2*4+2*3+2*1+2*2+2*2+2*2+1):(2*6+2*6+2*4+2*3+2*1+2*2+2*2+2*2+2*2)) );
// payload_type_5->Timeout = ( payload_byte[27] );
// payload_type_5->Timeout = ( (payload_type_5->Timeout << 8) | payload_byte[26] );
// //ChM = reorder_bytes_str( payload_bytes((2*6+2*6+2*4+2*3+2*1+2*2+2*2+2*2+2*2+1):(2*6+2*6+2*4+2*3+2*1+2*2+2*2+2*2+2*2+2*5)) );
// payload_type_5->ChM[0] = payload_byte[32];
// payload_type_5->ChM[1] = payload_byte[31];
// payload_type_5->ChM[2] = payload_byte[30];
// payload_type_5->ChM[3] = payload_byte[29];
// payload_type_5->ChM[4] = payload_byte[28];
// //tmp_bits = payload_bits((end-7) : end);
// //Hop = num2str( bi2de(tmp_bits(1:5), 'right-msb') );
// //SCA = num2str( bi2de(tmp_bits(6:end), 'right-msb') );
// payload_type_5->Hop = (payload_byte[33]&0x1F);
// payload_type_5->SCA = ((payload_byte[33]>>5)&0x07);
// }
// else
// {
// //TODO: Handle Unknown PDU.
// payload_type_R = (ADV_PDU_PAYLOAD_TYPE_R *)adv_pdu_payload;
// memcpy(payload_type_R->payload_byte, payload_byte, num_payload_byte);
// return(-1);
// }
return 0;
}
void BTLERxProcessor::execute(const buffer_c8_t& buffer) { void BTLERxProcessor::execute(const buffer_c8_t& buffer) {
if (!configured) return; if (!configured) return;
// FM demodulation // Pulled this implementation from channel_stats_collector.c to time slice a specific packet's dB.
uint32_t max_squared = 0;
/*const auto decim_0_out = decim_0.execute(buffer, dst_buffer); void* src_p = buffer.p;
const auto channel = decim_1.execute(decim_0_out, dst_buffer);
feed_channel_stats(channel); while (src_p < &buffer.p[buffer.count]) {
const uint32_t sample = *__SIMD32(src_p)++;
auto audio_oversampled = demod.execute(channel, work_audio_buffer);*/ const uint32_t mag_sq = __SMUAD(sample, sample);
if (mag_sq > max_squared) {
const auto decim_0_out = decim_0.execute(buffer, dst_buffer); max_squared = mag_sq;
feed_channel_stats(decim_0_out);
auto audio_oversampled = demod.execute(decim_0_out, work_audio_buffer);
/*std::fill(spectrum.begin(), spectrum.end(), 0);
for(size_t i=0; i<spectrum.size(); i++) {
spectrum[i] += buffer.p[i];
} }
const buffer_c16_t buffer_c16 {spectrum.data(),spectrum.size(),buffer.sampling_rate}; }
feed_channel_stats(buffer_c16);
auto audio_oversampled = demod.execute(buffer_c16, work_audio_buffer);*/ const float max_squared_f = max_squared;
// Audio signal processing const int32_t max_dB = mag2_to_dbv_norm(max_squared_f * (1.0f / (32768.0f * 32768.0f)));
for (size_t c = 0; c < audio_oversampled.count; c++) {
/*const int32_t sample_int = audio_oversampled.p[c] * 32768.0f;
int32_t current_sample = __SSAT(sample_int, 16);
current_sample /= 128;*/
int32_t current_sample = audio_oversampled.p[c]; // if I directly use this, some results can pass crc but not correct. decim_0.execute(buffer, dst_buffer);
rb_head++; feed_channel_stats(dst_buffer);
rb_head = (rb_head) % RB_SIZE;
rb_buf[rb_head] = current_sample; const buffer_c8_t iq_buffer{
buffer.p,
buffer.count,
baseband_fs};
skipSamples = skipSamples - 1; // process++;
if (skipSamples < 1) { // if ((process % 50) != 0) return;
int32_t threshold_tmp = 0;
for (int c = 0; c < 8; c++) {
threshold_tmp = threshold_tmp + (int32_t)rb_buf[(rb_head + c) % RB_SIZE];
}
g_threshold = (int32_t)threshold_tmp / 8;
int transitions = 0; // 4Mhz 2048 samples
if (rb_buf[(rb_head + 9) % RB_SIZE] > g_threshold) {
for (int c = 0; c < 8; c++) { //--------------Variable Defines---------------------------------//
if (rb_buf[(rb_head + c) % RB_SIZE] > rb_buf[(rb_head + c + 1) % RB_SIZE])
transitions = transitions + 1; int i, sp, j = 0;
} int I0, Q0, I1, Q1 = 0;
} else { int k, p, phase_idx = 0;
for (int c = 0; c < 8; c++) { int num_demod_byte = 0;
if (rb_buf[(rb_head + c) % RB_SIZE] < rb_buf[(rb_head + c + 1) % RB_SIZE])
transitions = transitions + 1; bool unequal_flag;
const int demod_buf_len = LEN_DEMOD_BUF_ACCESS; // For AA
int demod_buf_offset = 0;
int num_symbol_left = dst_buffer.count / SAMPLE_PER_SYMBOL; // One buffer sample consist of I and Q.
int symbols_eaten = 0;
int hit_idx = (-1);
//--------------Start Parsing For Access Address---------------//
static uint8_t demod_buf_access[SAMPLE_PER_SYMBOL][LEN_DEMOD_BUF_ACCESS];
uint32_t uint32_tmp = DEFAULT_ACCESS_ADDR;
uint8_t accessAddrBits[LEN_DEMOD_BUF_ACCESS];
uint32_t accesssAddress = 0;
// Filling up addressBits with the access address we are looking to find.
for (i = 0; i < 32; i++) {
accessAddrBits[i] = 0x01 & uint32_tmp;
uint32_tmp = (uint32_tmp >> 1);
}
memset(demod_buf_access, 0, SAMPLE_PER_SYMBOL * demod_buf_len);
for (i = 0; i < num_symbol_left * SAMPLE_PER_SYMBOL; i += SAMPLE_PER_SYMBOL) {
sp = ((demod_buf_offset - demod_buf_len + 1) & (demod_buf_len - 1));
for (j = 0; j < SAMPLE_PER_SYMBOL; j++) {
// Sample and compare with the adjacent next sample.
I0 = dst_buffer.p[i + j].real();
Q0 = dst_buffer.p[i + j].imag();
I1 = dst_buffer.p[i + j + 1].real();
Q1 = dst_buffer.p[i + j + 1].imag();
phase_idx = j;
demod_buf_access[phase_idx][demod_buf_offset] = (I0 * Q1 - I1 * Q0) > 0 ? 1 : 0;
k = sp;
unequal_flag = false;
accesssAddress = 0;
for (p = 0; p < demod_buf_len; p++) {
if (demod_buf_access[phase_idx][k] != accessAddrBits[p]) {
unequal_flag = true;
hit_idx = (-1);
break;
} }
accesssAddress = (accesssAddress & (~(1 << p))) | (demod_buf_access[phase_idx][k] << p);
k = ((k + 1) & (demod_buf_len - 1));
} }
bool packet_detected = false; if (unequal_flag == false) {
// if ( transitions==4 && abs(g_threshold)<15500) hit_idx = (i + j - (demod_buf_len - 1) * SAMPLE_PER_SYMBOL);
if (transitions == 4) { break;
uint8_t packet_data[500]; }
int packet_length; }
uint32_t packet_crc;
// uint32_t calced_crc; // NOTE: restore when CRC is passing
uint64_t packet_addr_l;
// uint32_t result; // NOTE: restore when CRC is passing
uint8_t crc[3];
uint8_t packet_header_arr[2];
packet_addr_l = 0; if (unequal_flag == false) {
for (int i = 0; i < 4; i++) { break;
bool current_bit; }
uint8_t byte = 0;
for (int c = 0; c < 8; c++) {
if (rb_buf[(rb_head + (i + 1) * 8 + c) % RB_SIZE] > g_threshold)
current_bit = true;
else
current_bit = false;
byte |= current_bit << (7 - c);
}
uint8_t byte_temp = (uint8_t)(((byte * 0x0802LU & 0x22110LU) | (byte * 0x8020LU & 0x88440LU)) * 0x10101LU >> 16);
packet_addr_l |= ((uint64_t)byte_temp) << (8 * i);
}
channel_number = 38; demod_buf_offset = ((demod_buf_offset + 1) & (demod_buf_len - 1));
}
for (int t = 0; t < 2; t++) { if (hit_idx == -1) {
bool current_bit; // Process more samples.
uint8_t byte = 0; return;
for (int c = 0; c < 8; c++) { }
if (rb_buf[(rb_head + 5 * 8 + t * 8 + c) % RB_SIZE] > g_threshold)
current_bit = true;
else
current_bit = false;
byte |= current_bit << (7 - c);
}
packet_header_arr[t] = byte; symbols_eaten += hit_idx;
}
uint8_t byte_temp2 = (uint8_t)(((channel_number * 0x0802LU & 0x22110LU) | (channel_number * 0x8020LU & 0x88440LU)) * 0x10101LU >> 16); symbols_eaten += (8 * NUM_ACCESS_ADDR_BYTE * SAMPLE_PER_SYMBOL); // move to beginning of PDU header
uint8_t lfsr_1 = byte_temp2 | 2;
int header_length = 2;
int header_counter = 0;
while (header_length--) {
for (uint8_t i = 0x80; i; i >>= 1) {
if (lfsr_1 & 0x80) {
lfsr_1 ^= 0x11;
(packet_header_arr[header_counter]) ^= i;
}
lfsr_1 <<= 1;
}
header_counter = header_counter + 1;
}
if (packet_addr_l == 0x8E89BED6) { num_symbol_left = num_symbol_left - symbols_eaten;
uint8_t byte_temp3 = (uint8_t)(((packet_header_arr[1] * 0x0802LU & 0x22110LU) | (packet_header_arr[1] * 0x8020LU & 0x88440LU)) * 0x10101LU >> 16);
packet_length = byte_temp3 & 0x3F;
} else { //--------------Start PDU Header Parsing-----------------------//
packet_length = 0;
}
for (int t = 0; t < packet_length + 2 + 3; t++) { num_demod_byte = 2; // PDU header has 2 octets
bool current_bit;
uint8_t byte = 0;
for (int c = 0; c < 8; c++) {
if (rb_buf[(rb_head + 5 * 8 + t * 8 + c) % RB_SIZE] > g_threshold)
current_bit = true;
else
current_bit = false;
byte |= current_bit << (7 - c);
}
packet_data[t] = byte; symbols_eaten += 8 * num_demod_byte * SAMPLE_PER_SYMBOL;
}
uint8_t byte_temp4 = (uint8_t)(((channel_number * 0x0802LU & 0x22110LU) | (channel_number * 0x8020LU & 0x88440LU)) * 0x10101LU >> 16); if (symbols_eaten > (int)dst_buffer.count) {
uint8_t lfsr_2 = byte_temp4 | 2; return;
int pdu_crc_length = packet_length + 2 + 3; }
int pdu_crc_counter = 0;
while (pdu_crc_length--) {
for (uint8_t i = 0x80; i; i >>= 1) {
if (lfsr_2 & 0x80) {
lfsr_2 ^= 0x11;
(packet_data[pdu_crc_counter]) ^= i;
}
lfsr_2 <<= 1;
}
pdu_crc_counter = pdu_crc_counter + 1;
}
if (packet_addr_l == 0x8E89BED6) { // //Demod the PDU Header
crc[0] = crc[1] = crc[2] = 0x55; uint8_t bit_decision;
} else {
crc[0] = crc[1] = crc[2] = 0;
}
uint8_t v, t, d, crc_length; // Jump back down to beginning of PDU header.
uint32_t crc_result = 0; int sample_idx = symbols_eaten - (8 * num_demod_byte * SAMPLE_PER_SYMBOL);
crc_length = packet_length + 2;
int counter = 0;
while (crc_length--) {
uint8_t byte_temp5 = (uint8_t)(((packet_data[counter] * 0x0802LU & 0x22110LU) | (packet_data[counter] * 0x8020LU & 0x88440LU)) * 0x10101LU >> 16);
d = byte_temp5;
for (v = 0; v < 8; v++, d >>= 1) {
t = crc[0] >> 7;
crc[0] <<= 1;
if (crc[1] & 0x80) crc[0] |= 1;
crc[1] <<= 1;
if (crc[2] & 0x80) crc[1] |= 1;
crc[2] <<= 1;
if (t != (d & 1)) {
crc[2] ^= 0x5B;
crc[1] ^= 0x06;
}
}
counter = counter + 1;
}
for (v = 0; v < 3; v++) crc_result = (crc_result << 8) | crc[v];
// calced_crc = crc_result; // NOTE: restore when CRC is passing
packet_crc = 0; uint16_t packet_index = 0;
for (int c = 0; c < 3; c++) packet_crc = (packet_crc << 8) | packet_data[packet_length + 2 + c];
if (packet_addr_l == 0x8E89BED6) for (i = 0; i < num_demod_byte; i++) {
// if (packet_crc==calced_crc) // NOTE: restore when CRC is passing rb_buf[packet_index] = 0;
{
uint8_t mac_data[6];
int counter = 0;
for (int i = 7; i >= 2; i--) {
uint8_t byte_temp6 = (uint8_t)(((packet_data[i] * 0x0802LU & 0x22110LU) | (packet_data[i] * 0x8020LU & 0x88440LU)) * 0x10101LU >> 16);
// result = byte_temp6; // NOTE: restore when CRC is passing
mac_data[counter] = byte_temp6;
counter = counter + 1;
}
data_message.is_data = false; for (j = 0; j < 8; j++) {
data_message.value = 'A'; I0 = dst_buffer.p[sample_idx].real();
shared_memory.application_queue.push(data_message); Q0 = dst_buffer.p[sample_idx].imag();
I1 = dst_buffer.p[sample_idx + 1].real();
Q1 = dst_buffer.p[sample_idx + 1].imag();
data_message.is_data = true; bit_decision = (I0 * Q1 - I1 * Q0) > 0 ? 1 : 0;
data_message.value = mac_data[0]; rb_buf[packet_index] = rb_buf[packet_index] | (bit_decision << j);
shared_memory.application_queue.push(data_message);
data_message.is_data = true; sample_idx += SAMPLE_PER_SYMBOL;
data_message.value = mac_data[1]; }
shared_memory.application_queue.push(data_message);
data_message.is_data = true; packet_index++;
data_message.value = mac_data[2]; }
shared_memory.application_queue.push(data_message);
data_message.is_data = true; // demod_byte(num_demod_byte, rb_buf);
data_message.value = mac_data[3];
shared_memory.application_queue.push(data_message);
data_message.is_data = true; scramble_byte(rb_buf, num_demod_byte, scramble_table[channel_number], rb_buf);
data_message.value = mac_data[4];
shared_memory.application_queue.push(data_message);
data_message.is_data = true; uint8_t pdu_type = (ADV_PDU_TYPE)(rb_buf[0] & 0x0F);
data_message.value = mac_data[5]; // uint8_t tx_add = ((rb_buf[0] & 0x40) != 0);
shared_memory.application_queue.push(data_message); // uint8_t rx_add = ((rb_buf[0] & 0x80) != 0);
uint8_t payload_len = (rb_buf[1] & 0x3F);
data_message.is_data = false; // Not valid Advertise Payload.
data_message.value = 'B'; if ((payload_len < 6) || (payload_len > 37)) {
shared_memory.application_queue.push(data_message); return;
}
packet_detected = true; //--------------Start Payload Parsing--------------------------//
} else
packet_detected = false; num_demod_byte = (payload_len + 3);
symbols_eaten += 8 * num_demod_byte * SAMPLE_PER_SYMBOL;
if (symbols_eaten > (int)dst_buffer.count) {
return;
}
// sample_idx = symbols_eaten - (8 * num_demod_byte * SAMPLE_PER_SYMBOL);
for (i = 0; i < num_demod_byte; i++) {
rb_buf[packet_index] = 0;
for (j = 0; j < 8; j++) {
I0 = dst_buffer.p[sample_idx].real();
Q0 = dst_buffer.p[sample_idx].imag();
I1 = dst_buffer.p[sample_idx + 1].real();
Q1 = dst_buffer.p[sample_idx + 1].imag();
bit_decision = (I0 * Q1 - I1 * Q0) > 0 ? 1 : 0;
rb_buf[packet_index] = rb_buf[packet_index] | (bit_decision << j);
sample_idx += SAMPLE_PER_SYMBOL;
}
packet_index++;
}
// demod_byte(num_demod_byte, rb_buf + 2);
scramble_byte(rb_buf + 2, num_demod_byte, scramble_table[channel_number] + 2, rb_buf + 2);
//--------------Start CRC Checking-----------------------------//
// Check CRC
bool crc_flag = crc_check(rb_buf, payload_len + 2, crc_init_internal);
// pkt_count++;
// This should be the flag that determines if the data should be sent to the application layer.
bool sendPacket = false;
// Checking CRC and excluding Reserved PDU types.
if (pdu_type < RESERVED0 && !crc_flag) {
if (parse_adv_pdu_payload_byte(rb_buf + 2, payload_len, (ADV_PDU_TYPE)pdu_type, (void*)(&adv_pdu_payload)) == 0) {
sendPacket = true;
}
// TODO: Make this a packet builder function?
if (sendPacket) {
blePacketData.max_dB = max_dB;
blePacketData.type = pdu_type;
blePacketData.size = payload_len;
blePacketData.macAddress[0] = macAddress[0];
blePacketData.macAddress[1] = macAddress[1];
blePacketData.macAddress[2] = macAddress[2];
blePacketData.macAddress[3] = macAddress[3];
blePacketData.macAddress[4] = macAddress[4];
blePacketData.macAddress[5] = macAddress[5];
// Skip Header Byte and MAC Address
uint8_t startIndex = 8;
for (i = 0; i < payload_len - 6; i++) {
blePacketData.data[i] = rb_buf[startIndex++];
} }
if (packet_detected) { blePacketData.dataLen = i;
skipSamples = 20;
} BLEPacketMessage data_message{&blePacketData};
shared_memory.application_queue.push(data_message);
} }
} }
} }
@ -275,12 +506,13 @@ void BTLERxProcessor::on_message(const Message* const message) {
} }
void BTLERxProcessor::configure(const BTLERxConfigureMessage& message) { void BTLERxProcessor::configure(const BTLERxConfigureMessage& message) {
(void)message; // avoid warning channel_number = message.channel_number;
decim_0.configure(taps_200k_wfm_decim_0.taps); decim_0.configure(taps_200k_wfm_decim_0.taps);
decim_1.configure(taps_200k_wfm_decim_1.taps); demod.configure(48000, 5000);
demod.configure(audio_fs, 5000);
configured = true; configured = true;
crc_init_internal = crc_init_reorder(crc_initalVale);
} }
int main() { int main() {

View File

@ -2,6 +2,7 @@
* Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc. * Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
* Copyright (C) 2016 Furrtek * Copyright (C) 2016 Furrtek
* Copyright (C) 2020 Shao * Copyright (C) 2020 Shao
* Copyright (C) 2023 Netro
* *
* This file is part of PortaPack. * This file is part of PortaPack.
* *
@ -42,48 +43,191 @@ class BTLERxProcessor : public BasebandProcessor {
void on_message(const Message* const message) override; void on_message(const Message* const message) override;
private: private:
static constexpr int SAMPLE_PER_SYMBOL{1};
static constexpr int LEN_DEMOD_BUF_ACCESS{32};
static constexpr uint32_t DEFAULT_ACCESS_ADDR{0x8E89BED6};
static constexpr int NUM_ACCESS_ADDR_BYTE{4};
enum ADV_PDU_TYPE {
ADV_IND = 0,
ADV_DIRECT_IND = 1,
ADV_NONCONN_IND = 2,
SCAN_REQ = 3,
SCAN_RSP = 4,
CONNECT_REQ = 5,
ADV_SCAN_IND = 6,
RESERVED0 = 7,
RESERVED1 = 8,
RESERVED2 = 9,
RESERVED3 = 10,
RESERVED4 = 11,
RESERVED5 = 12,
RESERVED6 = 13,
RESERVED7 = 14,
RESERVED8 = 15
};
uint8_t macAddress[6];
int checksumReceived = 0;
struct ADV_PDU_PAYLOAD_TYPE_0_2_4_6 {
uint8_t Data[31];
};
struct ADV_PDU_PAYLOAD_TYPE_1_3 {
uint8_t A1[6];
};
struct ADV_PDU_PAYLOAD_TYPE_5 {
uint8_t AdvA[6];
uint8_t AA[4];
uint32_t CRCInit;
uint8_t WinSize;
uint16_t WinOffset;
uint16_t Interval;
uint16_t Latency;
uint16_t Timeout;
uint8_t ChM[5];
uint8_t Hop;
uint8_t SCA;
};
struct ADV_PDU_PAYLOAD_TYPE_R {
uint8_t payload_byte[40];
};
static constexpr size_t baseband_fs = 4000000; static constexpr size_t baseband_fs = 4000000;
static constexpr size_t audio_fs = baseband_fs / 8 / 8 / 2; static constexpr size_t audio_fs = baseband_fs / 8 / 8 / 2;
std::array<complex16_t, 512> dst{}; uint_fast32_t crc_update(uint_fast32_t crc, const void* data, size_t data_len);
uint_fast32_t crc24_byte(uint8_t* byte_in, int num_byte, uint32_t init_hex);
bool crc_check(uint8_t* tmp_byte, int body_len, uint32_t crc_init);
uint32_t crc_init_reorder(uint32_t crc_init);
uint32_t crc_initalVale = 0x555555;
uint32_t crc_init_internal = 0x00;
void scramble_byte(uint8_t* byte_in, int num_byte, const uint8_t* scramble_table_byte, uint8_t* byte_out);
// void demod_byte(int num_byte, uint8_t *out_byte);
int parse_adv_pdu_payload_byte(uint8_t* payload_byte, int num_payload_byte, ADV_PDU_TYPE pdu_type, void* adv_pdu_payload);
std::array<complex16_t, 1024> dst{};
const buffer_c16_t dst_buffer{ const buffer_c16_t dst_buffer{
dst.data(), dst.data(),
dst.size()}; dst.size()};
std::array<complex16_t, 512> spectrum{}; static constexpr int RB_SIZE = 2048;
const buffer_c16_t spectrum_buffer{ uint8_t rb_buf[2048];
spectrum.data(),
spectrum.size()};
const buffer_s16_t work_audio_buffer{
(int16_t*)dst.data(),
sizeof(dst) / sizeof(int16_t)};
// Array size ok down to 375 bauds (24000 / 375)
std::array<int32_t, 64> delay_line{0};
std::array<int16_t, 1000> rb_buf{0};
/*dsp::decimate::FIRC8xR16x24FS4Decim8 decim_0 { };
dsp::decimate::FIRC16xR16x32Decim8 decim_1 { };
dsp::decimate::FIRAndDecimateComplex channel_filter { };*/
dsp::decimate::FIRC8xR16x24FS4Decim4 decim_0{}; dsp::decimate::FIRC8xR16x24FS4Decim4 decim_0{};
dsp::decimate::FIRC16xR16x16Decim2 decim_1{};
dsp::demodulate::FM demod{}; dsp::demodulate::FM demod{};
int rb_head{-1}; int rb_head{-1};
int32_t g_threshold{0}; int32_t g_threshold{0};
uint8_t channel_number{38}; uint8_t channel_number{37};
int skipSamples{1000};
int RB_SIZE{1000}; uint16_t process = 0;
bool configured{false}; bool configured{false};
AFSKDataMessage data_message{false, 0}; BlePacketData blePacketData{};
/* NB: Threads should be the last members in the class definition. */ /* NB: Threads should be the last members in the class definition. */
BasebandThread baseband_thread{baseband_fs, this, baseband::Direction::Receive}; BasebandThread baseband_thread{baseband_fs, this, baseband::Direction::Receive};
RSSIThread rssi_thread{}; RSSIThread rssi_thread{};
void configure(const BTLERxConfigureMessage& message); void configure(const BTLERxConfigureMessage& message);
ADV_PDU_PAYLOAD_TYPE_0_2_4_6* payload_type_0_2_4_6 = nullptr;
ADV_PDU_PAYLOAD_TYPE_1_3* payload_type_1_3 = nullptr;
ADV_PDU_PAYLOAD_TYPE_5* payload_type_5 = nullptr;
ADV_PDU_PAYLOAD_TYPE_R* payload_type_R = nullptr;
ADV_PDU_PAYLOAD_TYPE_R adv_pdu_payload = {0};
// clang-format off
// Scramble table definition
const uint8_t scramble_table[40][42] =
{
{64, 178, 188, 195, 31, 55, 74, 95, 133, 246, 156, 154, 193, 214, 197, 68, 32, 89, 222, 225, 143, 27, 165, 175, 66, 123, 78, 205, 96, 235, 98, 34, 144, 44, 239, 240, 199, 141, 210, 87, 161, 61, },
{137, 64, 178, 188, 195, 31, 55, 74, 95, 133, 246, 156, 154, 193, 214, 197, 68, 32, 89, 222, 225, 143, 27, 165, 175, 66, 123, 78, 205, 96, 235, 98, 34, 144, 44, 239, 240, 199, 141, 210, 87, 161, },
{210, 87, 161, 61, 167, 102, 176, 117, 49, 17, 72, 150, 119, 248, 227, 70, 233, 171, 208, 158, 83, 51, 216, 186, 152, 8, 36, 203, 59, 252, 113, 163, 244, 85, 104, 207, 169, 25, 108, 93, 76, 4, },
{27, 165, 175, 66, 123, 78, 205, 96, 235, 98, 34, 144, 44, 239, 240, 199, 141, 210, 87, 161, 61, 167, 102, 176, 117, 49, 17, 72, 150, 119, 248, 227, 70, 233, 171, 208, 158, 83, 51, 216, 186, 152, },
{100, 121, 135, 63, 110, 148, 190, 10, 237, 57, 53, 131, 173, 139, 137, 64, 178, 188, 195, 31, 55, 74, 95, 133, 246, 156, 154, 193, 214, 197, 68, 32, 89, 222, 225, 143, 27, 165, 175, 66, 123, 78, },
{173, 139, 137, 64, 178, 188, 195, 31, 55, 74, 95, 133, 246, 156, 154, 193, 214, 197, 68, 32, 89, 222, 225, 143, 27, 165, 175, 66, 123, 78, 205, 96, 235, 98, 34, 144, 44, 239, 240, 199, 141, 210, },
{246, 156, 154, 193, 214, 197, 68, 32, 89, 222, 225, 143, 27, 165, 175, 66, 123, 78, 205, 96, 235, 98, 34, 144, 44, 239, 240, 199, 141, 210, 87, 161, 61, 167, 102, 176, 117, 49, 17, 72, 150, 119, },
{63, 110, 148, 190, 10, 237, 57, 53, 131, 173, 139, 137, 64, 178, 188, 195, 31, 55, 74, 95, 133, 246, 156, 154, 193, 214, 197, 68, 32, 89, 222, 225, 143, 27, 165, 175, 66, 123, 78, 205, 96, 235, },
{8, 36, 203, 59, 252, 113, 163, 244, 85, 104, 207, 169, 25, 108, 93, 76, 4, 146, 229, 29, 254, 184, 81, 250, 42, 180, 231, 212, 12, 182, 46, 38, 2, 201, 242, 14, 127, 220, 40, 125, 21, 218, },
{193, 214, 197, 68, 32, 89, 222, 225, 143, 27, 165, 175, 66, 123, 78, 205, 96, 235, 98, 34, 144, 44, 239, 240, 199, 141, 210, 87, 161, 61, 167, 102, 176, 117, 49, 17, 72, 150, 119, 248, 227, 70, },
{154, 193, 214, 197, 68, 32, 89, 222, 225, 143, 27, 165, 175, 66, 123, 78, 205, 96, 235, 98, 34, 144, 44, 239, 240, 199, 141, 210, 87, 161, 61, 167, 102, 176, 117, 49, 17, 72, 150, 119, 248, 227, },
{83, 51, 216, 186, 152, 8, 36, 203, 59, 252, 113, 163, 244, 85, 104, 207, 169, 25, 108, 93, 76, 4, 146, 229, 29, 254, 184, 81, 250, 42, 180, 231, 212, 12, 182, 46, 38, 2, 201, 242, 14, 127, },
{44, 239, 240, 199, 141, 210, 87, 161, 61, 167, 102, 176, 117, 49, 17, 72, 150, 119, 248, 227, 70, 233, 171, 208, 158, 83, 51, 216, 186, 152, 8, 36, 203, 59, 252, 113, 163, 244, 85, 104, 207, 169, },
{229, 29, 254, 184, 81, 250, 42, 180, 231, 212, 12, 182, 46, 38, 2, 201, 242, 14, 127, 220, 40, 125, 21, 218, 115, 106, 6, 91, 23, 19, 129, 100, 121, 135, 63, 110, 148, 190, 10, 237, 57, 53, },
{190, 10, 237, 57, 53, 131, 173, 139, 137, 64, 178, 188, 195, 31, 55, 74, 95, 133, 246, 156, 154, 193, 214, 197, 68, 32, 89, 222, 225, 143, 27, 165, 175, 66, 123, 78, 205, 96, 235, 98, 34, 144, },
{119, 248, 227, 70, 233, 171, 208, 158, 83, 51, 216, 186, 152, 8, 36, 203, 59, 252, 113, 163, 244, 85, 104, 207, 169, 25, 108, 93, 76, 4, 146, 229, 29, 254, 184, 81, 250, 42, 180, 231, 212, 12, },
{208, 158, 83, 51, 216, 186, 152, 8, 36, 203, 59, 252, 113, 163, 244, 85, 104, 207, 169, 25, 108, 93, 76, 4, 146, 229, 29, 254, 184, 81, 250, 42, 180, 231, 212, 12, 182, 46, 38, 2, 201, 242, },
{25, 108, 93, 76, 4, 146, 229, 29, 254, 184, 81, 250, 42, 180, 231, 212, 12, 182, 46, 38, 2, 201, 242, 14, 127, 220, 40, 125, 21, 218, 115, 106, 6, 91, 23, 19, 129, 100, 121, 135, 63, 110, },
{66, 123, 78, 205, 96, 235, 98, 34, 144, 44, 239, 240, 199, 141, 210, 87, 161, 61, 167, 102, 176, 117, 49, 17, 72, 150, 119, 248, 227, 70, 233, 171, 208, 158, 83, 51, 216, 186, 152, 8, 36, 203, },
{139, 137, 64, 178, 188, 195, 31, 55, 74, 95, 133, 246, 156, 154, 193, 214, 197, 68, 32, 89, 222, 225, 143, 27, 165, 175, 66, 123, 78, 205, 96, 235, 98, 34, 144, 44, 239, 240, 199, 141, 210, 87, },
{244, 85, 104, 207, 169, 25, 108, 93, 76, 4, 146, 229, 29, 254, 184, 81, 250, 42, 180, 231, 212, 12, 182, 46, 38, 2, 201, 242, 14, 127, 220, 40, 125, 21, 218, 115, 106, 6, 91, 23, 19, 129, },
{61, 167, 102, 176, 117, 49, 17, 72, 150, 119, 248, 227, 70, 233, 171, 208, 158, 83, 51, 216, 186, 152, 8, 36, 203, 59, 252, 113, 163, 244, 85, 104, 207, 169, 25, 108, 93, 76, 4, 146, 229, 29, },
{102, 176, 117, 49, 17, 72, 150, 119, 248, 227, 70, 233, 171, 208, 158, 83, 51, 216, 186, 152, 8, 36, 203, 59, 252, 113, 163, 244, 85, 104, 207, 169, 25, 108, 93, 76, 4, 146, 229, 29, 254, 184, },
{175, 66, 123, 78, 205, 96, 235, 98, 34, 144, 44, 239, 240, 199, 141, 210, 87, 161, 61, 167, 102, 176, 117, 49, 17, 72, 150, 119, 248, 227, 70, 233, 171, 208, 158, 83, 51, 216, 186, 152, 8, 36, },
{152, 8, 36, 203, 59, 252, 113, 163, 244, 85, 104, 207, 169, 25, 108, 93, 76, 4, 146, 229, 29, 254, 184, 81, 250, 42, 180, 231, 212, 12, 182, 46, 38, 2, 201, 242, 14, 127, 220, 40, 125, 21, },
{81, 250, 42, 180, 231, 212, 12, 182, 46, 38, 2, 201, 242, 14, 127, 220, 40, 125, 21, 218, 115, 106, 6, 91, 23, 19, 129, 100, 121, 135, 63, 110, 148, 190, 10, 237, 57, 53, 131, 173, 139, 137, },
{10, 237, 57, 53, 131, 173, 139, 137, 64, 178, 188, 195, 31, 55, 74, 95, 133, 246, 156, 154, 193, 214, 197, 68, 32, 89, 222, 225, 143, 27, 165, 175, 66, 123, 78, 205, 96, 235, 98, 34, 144, 44, },
{195, 31, 55, 74, 95, 133, 246, 156, 154, 193, 214, 197, 68, 32, 89, 222, 225, 143, 27, 165, 175, 66, 123, 78, 205, 96, 235, 98, 34, 144, 44, 239, 240, 199, 141, 210, 87, 161, 61, 167, 102, 176, },
{188, 195, 31, 55, 74, 95, 133, 246, 156, 154, 193, 214, 197, 68, 32, 89, 222, 225, 143, 27, 165, 175, 66, 123, 78, 205, 96, 235, 98, 34, 144, 44, 239, 240, 199, 141, 210, 87, 161, 61, 167, 102, },
{117, 49, 17, 72, 150, 119, 248, 227, 70, 233, 171, 208, 158, 83, 51, 216, 186, 152, 8, 36, 203, 59, 252, 113, 163, 244, 85, 104, 207, 169, 25, 108, 93, 76, 4, 146, 229, 29, 254, 184, 81, 250, },
{46, 38, 2, 201, 242, 14, 127, 220, 40, 125, 21, 218, 115, 106, 6, 91, 23, 19, 129, 100, 121, 135, 63, 110, 148, 190, 10, 237, 57, 53, 131, 173, 139, 137, 64, 178, 188, 195, 31, 55, 74, 95, },
{231, 212, 12, 182, 46, 38, 2, 201, 242, 14, 127, 220, 40, 125, 21, 218, 115, 106, 6, 91, 23, 19, 129, 100, 121, 135, 63, 110, 148, 190, 10, 237, 57, 53, 131, 173, 139, 137, 64, 178, 188, 195, },
{96, 235, 98, 34, 144, 44, 239, 240, 199, 141, 210, 87, 161, 61, 167, 102, 176, 117, 49, 17, 72, 150, 119, 248, 227, 70, 233, 171, 208, 158, 83, 51, 216, 186, 152, 8, 36, 203, 59, 252, 113, 163, },
{169, 25, 108, 93, 76, 4, 146, 229, 29, 254, 184, 81, 250, 42, 180, 231, 212, 12, 182, 46, 38, 2, 201, 242, 14, 127, 220, 40, 125, 21, 218, 115, 106, 6, 91, 23, 19, 129, 100, 121, 135, 63, },
{242, 14, 127, 220, 40, 125, 21, 218, 115, 106, 6, 91, 23, 19, 129, 100, 121, 135, 63, 110, 148, 190, 10, 237, 57, 53, 131, 173, 139, 137, 64, 178, 188, 195, 31, 55, 74, 95, 133, 246, 156, 154, },
{59, 252, 113, 163, 244, 85, 104, 207, 169, 25, 108, 93, 76, 4, 146, 229, 29, 254, 184, 81, 250, 42, 180, 231, 212, 12, 182, 46, 38, 2, 201, 242, 14, 127, 220, 40, 125, 21, 218, 115, 106, 6, },
{68, 32, 89, 222, 225, 143, 27, 165, 175, 66, 123, 78, 205, 96, 235, 98, 34, 144, 44, 239, 240, 199, 141, 210, 87, 161, 61, 167, 102, 176, 117, 49, 17, 72, 150, 119, 248, 227, 70, 233, 171, 208, },
{141, 210, 87, 161, 61, 167, 102, 176, 117, 49, 17, 72, 150, 119, 248, 227, 70, 233, 171, 208, 158, 83, 51, 216, 186, 152, 8, 36, 203, 59, 252, 113, 163, 244, 85, 104, 207, 169, 25, 108, 93, 76, },
{214, 197, 68, 32, 89, 222, 225, 143, 27, 165, 175, 66, 123, 78, 205, 96, 235, 98, 34, 144, 44, 239, 240, 199, 141, 210, 87, 161, 61, 167, 102, 176, 117, 49, 17, 72, 150, 119, 248, 227, 70, 233, },
{31, 55, 74, 95, 133, 246, 156, 154, 193, 214, 197, 68, 32, 89, 222, 225, 143, 27, 165, 175, 66, 123, 78, 205, 96, 235, 98, 34, 144, 44, 239, 240, 199, 141, 210, 87, 161, 61, 167, 102, 176, 117, },
};
/**
* Static table used for the table_driven implementation.
*****************************************************************************/
const uint_fast32_t crc_table[256] =
{
0x000000, 0x01b4c0, 0x036980, 0x02dd40, 0x06d300, 0x0767c0, 0x05ba80, 0x040e40,
0x0da600, 0x0c12c0, 0x0ecf80, 0x0f7b40, 0x0b7500, 0x0ac1c0, 0x081c80, 0x09a840,
0x1b4c00, 0x1af8c0, 0x182580, 0x199140, 0x1d9f00, 0x1c2bc0, 0x1ef680, 0x1f4240,
0x16ea00, 0x175ec0, 0x158380, 0x143740, 0x103900, 0x118dc0, 0x135080, 0x12e440,
0x369800, 0x372cc0, 0x35f180, 0x344540, 0x304b00, 0x31ffc0, 0x332280, 0x329640,
0x3b3e00, 0x3a8ac0, 0x385780, 0x39e340, 0x3ded00, 0x3c59c0, 0x3e8480, 0x3f3040,
0x2dd400, 0x2c60c0, 0x2ebd80, 0x2f0940, 0x2b0700, 0x2ab3c0, 0x286e80, 0x29da40,
0x207200, 0x21c6c0, 0x231b80, 0x22af40, 0x26a100, 0x2715c0, 0x25c880, 0x247c40,
0x6d3000, 0x6c84c0, 0x6e5980, 0x6fed40, 0x6be300, 0x6a57c0, 0x688a80, 0x693e40,
0x609600, 0x6122c0, 0x63ff80, 0x624b40, 0x664500, 0x67f1c0, 0x652c80, 0x649840,
0x767c00, 0x77c8c0, 0x751580, 0x74a140, 0x70af00, 0x711bc0, 0x73c680, 0x727240,
0x7bda00, 0x7a6ec0, 0x78b380, 0x790740, 0x7d0900, 0x7cbdc0, 0x7e6080, 0x7fd440,
0x5ba800, 0x5a1cc0, 0x58c180, 0x597540, 0x5d7b00, 0x5ccfc0, 0x5e1280, 0x5fa640,
0x560e00, 0x57bac0, 0x556780, 0x54d340, 0x50dd00, 0x5169c0, 0x53b480, 0x520040,
0x40e400, 0x4150c0, 0x438d80, 0x423940, 0x463700, 0x4783c0, 0x455e80, 0x44ea40,
0x4d4200, 0x4cf6c0, 0x4e2b80, 0x4f9f40, 0x4b9100, 0x4a25c0, 0x48f880, 0x494c40,
0xda6000, 0xdbd4c0, 0xd90980, 0xd8bd40, 0xdcb300, 0xdd07c0, 0xdfda80, 0xde6e40,
0xd7c600, 0xd672c0, 0xd4af80, 0xd51b40, 0xd11500, 0xd0a1c0, 0xd27c80, 0xd3c840,
0xc12c00, 0xc098c0, 0xc24580, 0xc3f140, 0xc7ff00, 0xc64bc0, 0xc49680, 0xc52240,
0xcc8a00, 0xcd3ec0, 0xcfe380, 0xce5740, 0xca5900, 0xcbedc0, 0xc93080, 0xc88440,
0xecf800, 0xed4cc0, 0xef9180, 0xee2540, 0xea2b00, 0xeb9fc0, 0xe94280, 0xe8f640,
0xe15e00, 0xe0eac0, 0xe23780, 0xe38340, 0xe78d00, 0xe639c0, 0xe4e480, 0xe55040,
0xf7b400, 0xf600c0, 0xf4dd80, 0xf56940, 0xf16700, 0xf0d3c0, 0xf20e80, 0xf3ba40,
0xfa1200, 0xfba6c0, 0xf97b80, 0xf8cf40, 0xfcc100, 0xfd75c0, 0xffa880, 0xfe1c40,
0xb75000, 0xb6e4c0, 0xb43980, 0xb58d40, 0xb18300, 0xb037c0, 0xb2ea80, 0xb35e40,
0xbaf600, 0xbb42c0, 0xb99f80, 0xb82b40, 0xbc2500, 0xbd91c0, 0xbf4c80, 0xbef840,
0xac1c00, 0xada8c0, 0xaf7580, 0xaec140, 0xaacf00, 0xab7bc0, 0xa9a680, 0xa81240,
0xa1ba00, 0xa00ec0, 0xa2d380, 0xa36740, 0xa76900, 0xa6ddc0, 0xa40080, 0xa5b440,
0x81c800, 0x807cc0, 0x82a180, 0x831540, 0x871b00, 0x86afc0, 0x847280, 0x85c640,
0x8c6e00, 0x8ddac0, 0x8f0780, 0x8eb340, 0x8abd00, 0x8b09c0, 0x89d480, 0x886040,
0x9a8400, 0x9b30c0, 0x99ed80, 0x985940, 0x9c5700, 0x9de3c0, 0x9f3e80, 0x9e8a40,
0x972200, 0x9696c0, 0x944b80, 0x95ff40, 0x91f100, 0x9045c0, 0x929880, 0x932c40
};
// clang-format on
}; };
#endif /*__PROC_BTLERX_H__*/ #endif /*__PROC_BTLERX_H__*/

View File

@ -0,0 +1,318 @@
/*
* Copyright (C) 1996 Thomas Sailer (sailer@ife.ee.ethz.ch, hb9jnx@hb9w.che.eu)
* Copyright (C) 2012-2014 Elias Oenal (multimon-ng@eliasoenal.com)
* Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
* Copyright (C) 2016 Furrtek
* Copyright (C) 2023 Kyle Reed
*
* 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_fsk_rx.hpp"
#include "event_m4.hpp"
#include <algorithm>
#include <cmath>
#include <cstdint>
#include <cstddef>
using namespace std;
using namespace dsp::decimate;
namespace {
/* Count of bits that differ between the two values. */
uint8_t diff_bit_count(uint32_t left, uint32_t right) {
uint32_t diff = left ^ right;
uint8_t count = 0;
for (size_t i = 0; i < sizeof(diff) * 8; ++i) {
if (((diff >> i) & 0x1) == 1)
++count;
}
return count;
}
} // namespace
/* AudioNormalizer ***************************************/
void AudioNormalizer::execute_in_place(const buffer_f32_t& audio) {
// Decay min/max every second (@24kHz).
if (counter_ >= 24'000) {
// 90% decay factor seems to work well.
// This keeps large transients from wrecking the filter.
max_ *= 0.9f;
min_ *= 0.9f;
counter_ = 0;
calculate_thresholds();
}
counter_ += audio.count;
for (size_t i = 0; i < audio.count; ++i) {
auto& val = audio.p[i];
if (val > max_) {
max_ = val;
calculate_thresholds();
}
if (val < min_) {
min_ = val;
calculate_thresholds();
}
if (val >= t_hi_)
val = 1.0f;
else if (val <= t_lo_)
val = -1.0f;
else
val = 0.0;
}
}
void AudioNormalizer::calculate_thresholds() {
auto center = (max_ + min_) / 2.0f;
auto range = (max_ - min_) / 2.0f;
// 10% off center force either +/-1.0f.
// Higher == larger dead zone.
// Lower == more false positives.
auto threshold = range * 0.1;
t_hi_ = center + threshold;
t_lo_ = center - threshold;
}
/* FSKRxProcessor ******************************************/
void FSKRxProcessor::clear_data_bits() {
data = 0;
bit_count = 0;
}
void FSKRxProcessor::handle_sync(bool inverted) {
clear_data_bits();
has_sync_ = true;
inverted = inverted;
word_count = 0;
}
void FSKRxProcessor::process_bits(const buffer_c8_t& buffer) {
// Process all of the bits in the bits queue.
while (buffer.count > 0) {
// Wait until data_ is full.
if (bit_count < data_bit_count)
continue;
// Wait for the sync frame.
if (!has_sync_) {
if (diff_bit_count(data, sync_codeword) <= 2)
handle_sync(/*inverted=*/false);
else if (diff_bit_count(data, ~sync_codeword) <= 2)
handle_sync(/*inverted=*/true);
continue;
}
}
}
/* FSKRxProcessor ***************************************/
FSKRxProcessor::FSKRxProcessor() {
}
void FSKRxProcessor::execute(const buffer_c8_t& buffer) {
if (!configured) {
return;
}
// Decimate by current decim 0 and decim 1.
const auto decim_0_out = decim_0.execute(buffer, dst_buffer);
const auto decim_1_out = decim_1.execute(decim_0_out, dst_buffer);
feed_channel_stats(decim_1_out);
spectrum_samples += decim_1_out.count;
if (spectrum_samples >= spectrum_interval_samples) {
spectrum_samples -= spectrum_interval_samples;
channel_spectrum.feed(decim_1_out, channel_filter_low_f,
channel_filter_high_f, channel_filter_transition);
}
// process_bits();
// Update the status.
samples_processed += buffer.count;
if (samples_processed >= stat_update_threshold) {
// send_packet(data);
samples_processed -= stat_update_threshold;
}
}
void FSKRxProcessor::on_message(const Message* const message) {
switch (message->id) {
case Message::ID::FSKRxConfigure:
configure(*reinterpret_cast<const FSKRxConfigureMessage*>(message));
break;
case Message::ID::UpdateSpectrum:
case Message::ID::SpectrumStreamingConfig:
channel_spectrum.on_message(message);
break;
case Message::ID::SampleRateConfig:
sample_rate_config(*reinterpret_cast<const SampleRateConfigMessage*>(message));
break;
case Message::ID::CaptureConfig:
capture_config(*reinterpret_cast<const CaptureConfigMessage*>(message));
break;
default:
break;
}
}
void FSKRxProcessor::configure(const FSKRxConfigureMessage& message) {
// Extract message variables.
deviation = message.deviation;
channel_decimation = message.channel_decimation;
// channel_filter_taps = message.channel_filter;
channel_spectrum.set_decimation_factor(1);
}
void FSKRxProcessor::capture_config(const CaptureConfigMessage& message) {
if (message.config) {
audio_output.set_stream(std::make_unique<StreamInput>(message.config));
} else {
audio_output.set_stream(nullptr);
}
}
void FSKRxProcessor::sample_rate_config(const SampleRateConfigMessage& message) {
const auto sample_rate = message.sample_rate;
// The actual sample rate is the requested rate * the oversample rate.
// See oversample.hpp for more details on oversampling.
baseband_fs = sample_rate * toUType(message.oversample_rate);
baseband_thread.set_sampling_rate(baseband_fs);
// TODO: Do we need to use the taps that the decimators get configured with?
channel_filter_low_f = taps_200k_decim_1.low_frequency_normalized * sample_rate;
channel_filter_high_f = taps_200k_decim_1.high_frequency_normalized * sample_rate;
channel_filter_transition = taps_200k_decim_1.transition_normalized * sample_rate;
// Compute the scalar that corrects the oversample_rate to be x8 when computing
// the spectrum update interval. The original implementation only supported x8.
// TODO: Why is this needed here but not in proc_replay? There must be some other
// assumption about x8 oversampling in some component that makes this necessary.
const auto oversample_correction = toUType(message.oversample_rate) / 8.0;
// The spectrum update interval controls how often the waterfall is fed new samples.
spectrum_interval_samples = sample_rate / (spectrum_rate_hz * oversample_correction);
spectrum_samples = 0;
// For high sample rates, the M4 is busy collecting samples so the
// waterfall runs slower. Reduce the update interval so it runs faster.
// NB: Trade off: looks nicer, but more frequent updates == more CPU.
if (sample_rate >= 1'500'000)
spectrum_interval_samples /= (sample_rate / 750'000);
switch (message.oversample_rate) {
case OversampleRate::x4:
// M4 can't handle 2 decimation passes for sample rates needing x4.
decim_0.set<FIRC8xR16x24FS4Decim4>().configure(taps_200k_decim_0.taps);
decim_1.set<NoopDecim>();
break;
case OversampleRate::x8:
// M4 can't handle 2 decimation passes for sample rates <= 600k.
if (message.sample_rate < 600'000) {
decim_0.set<FIRC8xR16x24FS4Decim4>().configure(taps_200k_decim_0.taps);
decim_1.set<FIRC16xR16x16Decim2>().configure(taps_200k_decim_1.taps);
} else {
// Using 180k taps to provide better filtering with a single pass.
decim_0.set<FIRC8xR16x24FS4Decim8>().configure(taps_180k_wfm_decim_0.taps);
decim_1.set<NoopDecim>();
}
break;
case OversampleRate::x16:
decim_0.set<FIRC8xR16x24FS4Decim8>().configure(taps_200k_decim_0.taps);
decim_1.set<FIRC16xR16x16Decim2>().configure(taps_200k_decim_1.taps);
break;
case OversampleRate::x32:
decim_0.set<FIRC8xR16x24FS4Decim4>().configure(taps_200k_decim_0.taps);
decim_1.set<FIRC16xR16x32Decim8>().configure(taps_16k0_decim_1.taps);
break;
case OversampleRate::x64:
decim_0.set<FIRC8xR16x24FS4Decim8>().configure(taps_200k_decim_0.taps);
decim_1.set<FIRC16xR16x32Decim8>().configure(taps_16k0_decim_1.taps);
break;
default:
chDbgPanic("Unhandled OversampleRate");
break;
}
// Update demodulator based on new decimation. Todo: Confirm this works.
size_t decim_0_input_fs = baseband_fs;
size_t decim_0_output_fs = decim_0_input_fs / decim_0.decimation_factor();
size_t decim_1_input_fs = decim_0_output_fs;
size_t decim_1_output_fs = decim_1_input_fs / decim_1.decimation_factor();
// size_t channel_filter_input_fs = decim_1_output_fs;
// size_t channel_filter_output_fs = channel_filter_input_fs / channel_decimation;
size_t demod_input_fs = decim_1_output_fs;
send_packet((uint32_t)demod_input_fs);
// Set ready to process data.
configured = true;
}
void FSKRxProcessor::flush() {
// word_extractor.flush();
}
void FSKRxProcessor::reset() {
clear_data_bits();
has_sync_ = false;
inverted = false;
word_count = 0;
samples_processed = 0;
}
void FSKRxProcessor::send_packet(uint32_t data) {
data_message.is_data = true;
data_message.value = data;
shared_memory.application_queue.push(data_message);
}
/* main **************************************************/
int main() {
EventDispatcher event_dispatcher{std::make_unique<FSKRxProcessor>()};
event_dispatcher.run();
return 0;
}

View File

@ -0,0 +1,225 @@
/*
* Copyright (C) 2014 Jared Boone, ShareBrained Technology, Inc.
* Copyright (C) 2016 Furrtek
*
* 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_FSK_RX_H__
#define __PROC_FSK_RX_H__
#include "audio_output.hpp"
#include "baseband_processor.hpp"
#include "baseband_thread.hpp"
#include "rssi_thread.hpp"
#include "dsp_decimate.hpp"
#include "dsp_demodulate.hpp"
#include "dsp_iir_config.hpp"
#include "dsp_fir_taps.hpp"
#include "spectrum_collector.hpp"
#include "stream_input.hpp"
#include "message.hpp"
#include "portapack_shared_memory.hpp"
#include <array>
#include <memory>
#include <tuple>
#include <variant>
#include <cstdint>
#include <functional>
/* Normalizes audio stream to +/-1.0f */
class AudioNormalizer {
public:
void execute_in_place(const buffer_f32_t& audio);
private:
void calculate_thresholds();
uint32_t counter_ = 0;
float min_ = 99.0f;
float max_ = -99.0f;
float t_hi_ = 1.0;
float t_lo_ = 1.0;
};
/* A decimator that just returns the source buffer. */
class NoopDecim {
public:
static constexpr int decimation_factor = 1;
template <typename Buffer>
Buffer execute(const Buffer& src, const Buffer&) {
// TODO: should this copy to 'dst'?
return {src.p, src.count, src.sampling_rate};
}
};
/* Decimator wrapper that can hold one of a set of decimators and dispatch at runtime. */
template <typename... Args>
class MultiDecimator {
public:
/* Dispatches to the underlying type's execute. */
template <typename Source, typename Destination>
Destination execute(
const Source& src,
const Destination& dst) {
return std::visit(
[&src, &dst](auto&& arg) -> Destination {
return arg.execute(src, dst);
},
decimator_);
}
size_t decimation_factor() const {
return std::visit(
[](auto&& arg) -> size_t {
return arg.decimation_factor;
},
decimator_);
}
/* Sets this decimator to a new instance of the specified decimator type.
* NB: The instance is returned by-ref so 'configure' can easily be called. */
template <typename Decimator>
Decimator& set() {
decimator_ = Decimator{};
return std::get<Decimator>(decimator_);
}
private:
std::variant<Args...> decimator_{};
};
class FSKRxProcessor : public BasebandProcessor {
public:
FSKRxProcessor();
void execute(const buffer_c8_t& buffer) override;
void on_message(const Message* const message) override;
private:
size_t baseband_fs = 1024000; // aka: sample_rate
uint8_t stat_update_interval = 10;
uint32_t stat_update_threshold = baseband_fs / stat_update_interval;
static constexpr auto spectrum_rate_hz = 50.0f;
void configure(const FSKRxConfigureMessage& message);
void capture_config(const CaptureConfigMessage& message);
void sample_rate_config(const SampleRateConfigMessage& message);
void flush();
void reset();
void send_packet(uint32_t data);
void process_bits(const buffer_c8_t& buffer);
void clear_data_bits();
void handle_sync(bool inverted);
/* Returns true if the batch has as sync frame. */
bool has_sync() const { return has_sync_; }
/* Set once app is ready to receive messages. */
bool configured = false;
/* Buffer for decimated IQ data. */
std::array<complex16_t, 512> dst{};
const buffer_c16_t dst_buffer{
dst.data(),
dst.size()};
/* Buffer for demodulated audio. */
std::array<float, 16> audio{};
const buffer_f32_t audio_buffer{audio.data(), audio.size()};
/* The actual type will be configured depending on the sample rate. */
MultiDecimator<
dsp::decimate::FIRC8xR16x24FS4Decim4,
dsp::decimate::FIRC8xR16x24FS4Decim8>
decim_0{};
MultiDecimator<
dsp::decimate::FIRC16xR16x16Decim2,
dsp::decimate::FIRC16xR16x32Decim8,
NoopDecim>
decim_1{};
/* Filter to 24kHz and demodulate. */
dsp::decimate::FIRAndDecimateComplex channel_filter{};
size_t deviation = 3750;
// fir_taps_real<32> channel_filter_taps = 0;
size_t channel_decimation = 2;
int32_t channel_filter_low_f = 0;
int32_t channel_filter_high_f = 0;
int32_t channel_filter_transition = 0;
/* Squelch to ignore noise. */
FMSquelch squelch{};
uint64_t squelch_history = 0;
// /* LPF to reduce noise. POCSAG supports 2400 baud, but that falls
// * nicely into the transition band of this 1800Hz filter.
// * scipy.signal.butter(2, 1800, "lowpass", fs=24000, analog=False) */
// IIRBiquadFilter lpf{{{0.04125354f, 0.082507070f, 0.04125354f},
// {1.00000000f, -1.34896775f, 0.51398189f}}};
/* Attempts to de-noise and normalize signal. */
AudioNormalizer normalizer{};
/* Handles writing audio stream to hardware. */
AudioOutput audio_output{};
/* Holds the data sent to the app. */
AFSKDataMessage data_message{false, 0};
/* Used to keep track of how many samples were processed
* between status update messages. */
uint32_t samples_processed = 0;
/* Number of bits in 'data_' member. */
static constexpr uint8_t data_bit_count = sizeof(uint32_t) * 8;
/* Sync frame codeword. */
static constexpr uint32_t sync_codeword = 0x12345678;
/* When true, sync frame has been received. */
bool has_sync_ = false;
/* When true, bit vales are flipped in the codewords. */
bool inverted = false;
uint32_t data = 0;
uint8_t bit_count = 0;
uint8_t word_count = 0;
/* LPF to reduce noise. POCSAG supports 2400 baud, but that falls
* nicely into the transition band of this 1800Hz filter.
* scipy.signal.butter(2, 1800, "lowpass", fs=24000, analog=False) */
IIRBiquadFilter lpf{{{0.04125354f, 0.082507070f, 0.04125354f},
{1.00000000f, -1.34896775f, 0.51398189f}}};
SpectrumCollector channel_spectrum{};
size_t spectrum_interval_samples = 0;
size_t spectrum_samples = 0;
/* NB: Threads should be the last members in the class definition. */
BasebandThread baseband_thread{baseband_fs, this, baseband::Direction::Receive};
RSSIThread rssi_thread{};
};
#endif

View File

@ -112,6 +112,8 @@ class Message {
SpectrumPainterBufferRequestConfigure = 55, SpectrumPainterBufferRequestConfigure = 55,
SpectrumPainterBufferResponseConfigure = 56, SpectrumPainterBufferResponseConfigure = 56,
POCSAGStats = 57, POCSAGStats = 57,
FSKRxConfigure = 58,
BlePacket = 58,
MAX MAX
}; };
@ -400,6 +402,26 @@ class AFSKDataMessage : public Message {
uint32_t value; uint32_t value;
}; };
struct BlePacketData {
int max_dB;
uint8_t type;
uint8_t size;
uint8_t macAddress[6];
uint8_t data[40];
uint8_t dataLen;
};
class BLEPacketMessage : public Message {
public:
constexpr BLEPacketMessage(
BlePacketData* packet)
: Message{ID::BlePacket},
packet{packet} {
}
BlePacketData* packet{nullptr};
};
class CodedSquelchMessage : public Message { class CodedSquelchMessage : public Message {
public: public:
constexpr CodedSquelchMessage( constexpr CodedSquelchMessage(
@ -726,20 +748,11 @@ class APRSRxConfigureMessage : public Message {
class BTLERxConfigureMessage : public Message { class BTLERxConfigureMessage : public Message {
public: public:
constexpr BTLERxConfigureMessage( constexpr BTLERxConfigureMessage(
const uint32_t baudrate, const uint8_t channel_number)
const uint32_t word_length,
const uint32_t trigger_value,
const bool trigger_word)
: Message{ID::BTLERxConfigure}, : Message{ID::BTLERxConfigure},
baudrate(baudrate), channel_number(channel_number) {
word_length(word_length),
trigger_value(trigger_value),
trigger_word(trigger_word) {
} }
const uint32_t baudrate; const uint8_t channel_number;
const uint32_t word_length;
const uint32_t trigger_value;
const bool trigger_word;
}; };
class NRFRxConfigureMessage : public Message { class NRFRxConfigureMessage : public Message {
@ -1013,6 +1026,29 @@ class FSKConfigureMessage : public Message {
const uint32_t progress_notice; const uint32_t progress_notice;
}; };
class FSKRxConfigureMessage : public Message {
public:
constexpr FSKRxConfigureMessage(
const fir_taps_real<24> decim_0_filter,
const fir_taps_real<32> decim_1_filter,
const fir_taps_real<32> channel_filter,
const size_t channel_decimation,
const size_t deviation)
: Message{ID::FSKRxConfigure},
decim_0_filter(decim_0_filter),
decim_1_filter(decim_1_filter),
channel_filter(channel_filter),
channel_decimation{channel_decimation},
deviation{deviation} {
}
const fir_taps_real<24> decim_0_filter;
const fir_taps_real<32> decim_1_filter;
const fir_taps_real<32> channel_filter;
const size_t channel_decimation;
const size_t deviation;
};
class POCSAGConfigureMessage : public Message { class POCSAGConfigureMessage : public Message {
public: public:
constexpr POCSAGConfigureMessage() constexpr POCSAGConfigureMessage()

View File

@ -97,6 +97,7 @@ constexpr image_tag_t image_tag_adsb_tx{'P', 'A', 'D', 'T'};
constexpr image_tag_t image_tag_afsk{'P', 'A', 'F', 'T'}; constexpr image_tag_t image_tag_afsk{'P', 'A', 'F', 'T'};
constexpr image_tag_t image_tag_audio_tx{'P', 'A', 'T', 'X'}; constexpr image_tag_t image_tag_audio_tx{'P', 'A', 'T', 'X'};
constexpr image_tag_t image_tag_fsktx{'P', 'F', 'S', 'K'}; constexpr image_tag_t image_tag_fsktx{'P', 'F', 'S', 'K'};
constexpr image_tag_t image_tag_fskrx{'P', 'F', 'S', 'R'};
constexpr image_tag_t image_tag_jammer{'P', 'J', 'A', 'M'}; constexpr image_tag_t image_tag_jammer{'P', 'J', 'A', 'M'};
constexpr image_tag_t image_tag_mic_tx{'P', 'M', 'T', 'X'}; constexpr image_tag_t image_tag_mic_tx{'P', 'M', 'T', 'X'};
constexpr image_tag_t image_tag_ook{'P', 'O', 'O', 'K'}; constexpr image_tag_t image_tag_ook{'P', 'O', 'O', 'K'};