/* * Copyright (C) 2016 Jared Boone, ShareBrained Technology, Inc. * Copyright (C) 2018 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 "capture_app.hpp" #include "baseband_api.hpp" #include "portapack.hpp" #include "ui_freqman.hpp" using namespace portapack; namespace ui { CaptureAppView::CaptureAppView(NavigationView& nav) : nav_{nav} { freqman_set_bandwidth_option(SPEC_MODULATION, option_bandwidth); baseband::run_image(portapack::spi_flash::image_tag_capture); add_children({ &labels, &rssi, &channel, &field_frequency, &field_frequency_step, &field_rf_amp, &field_lna, &field_vga, &option_bandwidth, &record_view, &waterfall, }); /* THE ONE LINE BELOW IS A TEMPORARY KLUDGE WORKAROUND FOR A MYSTERY M4 BASEBAND HANG ISSUE WHEN THE CAPTURE APP IS THE FIRST APP STARTED AFTER POWER-UP, OR THE CAPTURE APP IS RUN AFTER RUNNING REPLAY WITH A HIGH SAMPLE RATE. IT SHOULD NOT BE NECESSARY SINCE sampling_rate IS ALREADY INITIALIZED BY RADIOSTATE BUT APPARENTLY IS ADDING JUST THE RIGHT AMOUNT OF DELAY. ISSUE DOES NOT AFFECT ALL PORTAPACK UNITS. INVESTIGATION IS ONGOING, SEE ISSUE #1283. */ receiver_model.set_sampling_rate(3072000); /* END MYSTERY HANG WORKAROUND. */ field_frequency_step.set_by_value(receiver_model.frequency_step()); field_frequency_step.on_change = [this](size_t, OptionsField::value_t v) { receiver_model.set_frequency_step(v); this->field_frequency.set_step(v); }; option_bandwidth.on_change = [this](size_t, uint32_t base_rate) { sampling_rate = 8 * base_rate; // Decimation by 8 done on baseband side /* base_rate 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 */ waterfall.on_hide(); /* Set up proper anti aliasing BPF bandwith in MAX2837 before ADC sampling according to the new added BW Options. */ auto anti_alias_baseband_bandwidth_filter = filter_bandwidth_for_sampling_rate(sampling_rate); record_view.set_sampling_rate(sampling_rate); receiver_model.set_sampling_rate(sampling_rate); receiver_model.set_baseband_bandwidth(anti_alias_baseband_bandwidth_filter); waterfall.on_show(); }; option_bandwidth.set_selected_index(7); // Preselected default option 500kHz. receiver_model.enable(); record_view.on_error = [&nav](std::string message) { nav.display_modal("Error", message); }; } CaptureAppView::~CaptureAppView() { receiver_model.disable(); baseband::shutdown(); } void CaptureAppView::on_hide() { waterfall.on_hide(); View::on_hide(); } void CaptureAppView::set_parent_rect(const Rect new_parent_rect) { View::set_parent_rect(new_parent_rect); ui::Rect waterfall_rect{0, header_height, new_parent_rect.width(), new_parent_rect.height() - header_height}; waterfall.set_parent_rect(waterfall_rect); } void CaptureAppView::focus() { record_view.focus(); } } /* namespace ui */