mirror of
https://github.com/portapack-mayhem/mayhem-firmware.git
synced 2026-08-31 03:49:04 +00:00
Sarah Rose
5c2d1d3dfb
Implements MDC-1200 single and double-packet TX as a PPMA external app. Features: - Supports PTT ID, Emergency, Radio Check, Stun/Unstun, Call Alert, Selective Call (1 & 2), Status Request/Response, Remote Monitor, Message - Auto-fills Arg byte on Op selection - AFSK FSK modulation: 1800 Hz mark / 1200 Hz space, 1200 baud - NRZI encoding with Golay FEC per MDC-1200 spec - Tap-to-edit frequency via keypad - Default TX gain of 30 dB - Uses AFSK baseband (same as POCSAG/SAME TX) - All buffers kept off the stack to avoid hard faults in ext app environment * mdc_tx: address PR review feedback - Move MDC helpers into ui::external_app::mdc_tx namespace (drop anonymous namespace) - Use AFSK_TX_SAMPLERATE macro instead of hardcoded 1536000 - Add #include "modems.hpp" explicitly for AFSK_TX_SAMPLERATE - Replace n*8/n*16 pixel positions with UI_POS_X/UI_POS_Y macros - Fix field comments: 'hex bytes' -> 'decimal bytes (0-255)' - Fix TransmitterView frequency_step: 1750000 -> 12500 (12.5kHz NFM step) - Fix MDC preamble: replace leading 0x00 bytes with 0xAA after NRZI encoding stayed 0x00, terminating TX on the first word. 0xAA bytes NRZI-encode to 0xFF (continuous 1800Hz mark tone), which is the standard MDC-1200 preamble and does not trigger the sentinel.
125 lines
4.2 KiB
C++
125 lines
4.2 KiB
C++
/*
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* Copyright (C) 2025 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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#ifndef __UI_MDC_TX_H__
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#define __UI_MDC_TX_H__
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#include "ui.hpp"
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#include "ui_widget.hpp"
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#include "ui_navigation.hpp"
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#include "ui_transmitter.hpp"
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#include "app_settings.hpp"
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#include "radio_state.hpp"
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#include "message.hpp"
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#include "modems.hpp"
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namespace ui::external_app::mdc_tx {
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class MdcTxView : public View {
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public:
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MdcTxView(NavigationView& nav);
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~MdcTxView();
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MdcTxView(const MdcTxView&) = delete;
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MdcTxView& operator=(const MdcTxView&) = delete;
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void focus() override;
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std::string title() const override { return "MDC-1200 TX"; }
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private:
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NavigationView& nav_;
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// TxRadioState MUST be declared before SettingsManager
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TxRadioState radio_state_{
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462562500,
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1750000,
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AFSK_TX_SAMPLERATE};
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app_settings::SettingsManager settings_{
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"tx_mdc_tx",
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app_settings::Mode::TX};
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Labels labels_{{
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{{UI_POS_X(0), UI_POS_Y(0)}, "Op:", ui::Theme::getInstance()->fg_light->foreground},
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{{UI_POS_X(0), UI_POS_Y(1)}, "ID:", ui::Theme::getInstance()->fg_light->foreground},
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{{UI_POS_X(13), UI_POS_Y(1)}, "Arg:", ui::Theme::getInstance()->fg_light->foreground},
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{{UI_POS_X(0), UI_POS_Y(2)}, "Src:", ui::Theme::getInstance()->fg_light->foreground},
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}};
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// Only one OptionsField allowed per external app
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// Stun=Op 0x2B Arg 0x00, Unstun=Op 0x2B Arg 0x0C (auto-set via on_change)
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OptionsField field_op{
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{UI_POS_X(4), UI_POS_Y(0)},
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14,
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{{"PTT ID", 0x01},
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{"Emergency", 0x00},
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{"Radio Check", 0x63},
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{"Stun", 0x2B},
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{"Unstun", 0xFE}, // sentinel: op=0x2B, arg=0x0C
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{"Call Alert", 0x81},
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{"Sel Call 1", 0x80},
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{"Sel Call 2", 0x82},
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{"Status Req", 0x22},
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{"Status Resp", 0x06},
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{"Rem Monitor", 0x11},
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{"Message", 0x07}}};
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// Unit ID: two decimal bytes (0-255) combined into a 16-bit ID
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NumberField field_id_hi{{UI_POS_X(4), UI_POS_Y(1)}, 3, {0, 255}, 1, '0'};
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NumberField field_id_lo{{UI_POS_X(7), UI_POS_Y(1)}, 3, {0, 255}, 1, '0'};
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// Argument byte (decimal 0-255, auto-set by op selection)
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NumberField field_arg{{UI_POS_X(17), UI_POS_Y(1)}, 3, {0, 255}, 1, '0'};
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// Source ID: two decimal bytes (0-255) combined into a 16-bit ID
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NumberField field_src_hi{{UI_POS_X(4), UI_POS_Y(2)}, 3, {0, 255}, 1, '0'};
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NumberField field_src_lo{{UI_POS_X(7), UI_POS_Y(2)}, 3, {0, 255}, 1, '0'};
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Text text_status{{0, UI_POS_Y(3), UI_POS_MAXWIDTH, UI_POS_DEFAULT_HEIGHT}, "Ready"};
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TransmitterView tx_view{
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(int16_t)UI_POS_Y_BOTTOM(4),
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12500,
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0};
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bool tx_active_{false};
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// Class-owned scratch buffers — keep large allocations off the stack
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uint8_t tx_stream_[128]{};
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uint8_t lbits_[112]{};
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void pack_codeword(uint8_t cw[14]);
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int build_single(uint8_t op, uint8_t arg, uint8_t id_hi, uint8_t id_lo);
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int build_double(uint8_t op1, uint8_t arg1, uint8_t id1_hi, uint8_t id1_lo, uint8_t op2, uint8_t arg2, uint8_t id2_hi, uint8_t id2_lo);
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void start_tx();
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void stop_tx();
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void on_tx_progress(uint32_t progress, bool done);
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MessageHandlerRegistration message_handler_tx_progress{
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Message::ID::TXProgress,
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[this](const Message* const p) {
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const auto msg = *reinterpret_cast<const TXProgressMessage*>(p);
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this->on_tx_progress(msg.progress, msg.done);
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}};
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};
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} // namespace ui::external_app::mdc_tx
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#endif
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