mirror of
https://github.com/portapack-mayhem/mayhem-firmware.git
synced 2026-08-16 21:03:24 +00:00
Sarah Rose
bf5ea0a004
* Add KISS TNC external app for APRS RX/TX over USB serial Adds a KISS TNC (Terminal Node Controller) app that bridges APRS packets between the HackRF radio and a connected PC over USB CDC serial using the KISS protocol. Features: - APRS receive at 144.390 MHz (configurable), decoding packets via the existing APRS RX baseband (PAPR.bin) - Received AX.25 frames forwarded to host as KISS-framed data over USB serial - KISS frames received from host transmitted as AFSK audio using the existing AFSK TX baseband (PAFT.bin) - Clean RX->TX->RX baseband switching with proper timing delays - USB connection status indicator with periodic refresh - Compatible with standard KISS TNC clients (Xastir, APRSISCE/32, Dire Wolf, etc.) Firmware changes required to support the external app: - baseband_api.cpp: mark set_aprs() __attribute__((used)) so it is retained by the linker for external app use - protocols/ax25: add make_frame_from_raw() to build NRZI bitstream from raw AX.25 bytes, marked __attribute__((used)) - usb_serial_host_to_device: add kiss_raw_handler hook to route incoming USB bytes directly to a registered callback, bypassing the shell; marked __attribute__((used)) - baseband/proc_aprsrx: add constructor that auto-configures at 1200 baud so external apps do not need to call set_aprs() at init * Address PR review: generic RAII USB handler, fix TX cutoff and buffer overflow - Replace KISS-specific set_kiss_raw_handler() in shared USB code with a generic UsbSerialInputHandler RAII class; any app can now register a handler via the ctor and it auto-clears in the dtor — no app-specific 'if' checks in shared code, no __attribute__((used)) needed - Remove __attribute__((used)) from set_aprs() — it is referenced directly by ui_aprs_rx.cpp so it will never be dead-stripped - Fix send_kiss_frame() buffer overflow: per-byte bounds check prevents 2-byte escape sequences from writing past the end of the output buffer - Replace fillOBuffer(TIME_INFINITE) with chOQWriteTimeout(TIME_IMMEDIATE) to drop bytes instead of blocking the event loop - Remove chThdSleepMilliseconds() calls from start_tx() and finish_tx() - Fix TX cutoff bug: call start_tx() directly from process_kiss_frame() instead of deferring via tx_pending_ flag (deferral caused kiss_idx_ to be 0 by the time start_tx() fired, producing an empty frame) * Move USB write into UsbSerialInputHandler class Add a write() method to UsbSerialInputHandler so all USB I/O (both input callback and output) is encapsulated in the class. KISS TNC now uses usb_input_handler_->write() instead of calling chOQWriteTimeout(&SUSBD1.oqueue, ...) directly, keeping raw USB details out of app code. * Address PR review: remove auto-configure from APRSRxProcessor, add timeout param to write() - Remove default_config from APRSRxProcessor() constructor; baseband should start unconfigured and wait for APRSRxConfigureMessage from the app side (already sent via baseband::set_aprs() in KISS TNC and APRS RX app) - Remove stray #include "stdio.h" from proc_aprsrx.cpp - Add systime_t timeout parameter with default TIME_IMMEDIATE to UsbSerialInputHandler::write() so callers can choose blocking behaviour
85 lines
2.2 KiB
C++
85 lines
2.2 KiB
C++
/*
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* Copyright (C) 2024 Sarah Rose
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*
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* This file is part of PortaPack.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street,
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* Boston, MA 02110-1301, USA.
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*/
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#include "ui.hpp"
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#include "ui_kiss_tnc.hpp"
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#include "ui_navigation.hpp"
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#include "external_app.hpp"
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namespace ui::external_app::kiss_tnc {
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void initialize_app(ui::NavigationView& nav) {
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nav.push<KissTncView>();
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}
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} // namespace ui::external_app::kiss_tnc
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extern "C" {
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__attribute__((section(".external_app.app_kiss_tnc.application_information"), used)) application_information_t _application_information_kiss_tnc = {
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/*.memory_location = */ (uint8_t*)0x00000000,
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/*.externalAppEntry = */ ui::external_app::kiss_tnc::initialize_app,
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/*.header_version = */ CURRENT_HEADER_VERSION,
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/*.app_version = */ VERSION_MD5,
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/*.app_name = */ "KISS TNC",
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/*.bitmap_data = */ {
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// 16x16 icon - radio tower / TNC
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0x00,
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0x00,
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0x08,
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0x00,
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0x14,
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0x00,
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0x22,
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0x00,
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0x08,
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0x00,
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0x08,
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0x00,
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0x08,
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0x00,
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0x3E,
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0x00,
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0x22,
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0x00,
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0x22,
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0x00,
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0x22,
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0x00,
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0x22,
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0x00,
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0x3E,
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0x00,
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0x1C,
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0x00,
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0x08,
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0x00,
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0x00,
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0x00,
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},
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/*.icon_color = */ ui::Color::green().v,
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/*.menu_location = */ app_location_t::TRX,
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/*.desired_menu_position = */ -1,
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/*.m4_app_tag = portapack::spi_flash::image_tag_aprs_rx */ {'P', 'A', 'P', 'R'},
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/*.m4_app_offset = */ 0x00000000,
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};
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}
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