Files
mayhem-firmware/firmware/application/baseband_api.hpp
T
Sarah Rose 55a15958ec Add P25 Phase 1 TSCC TX external app (p25_tx) (#3090)
* Add P25 TX external app (UI shell)

- Register p25_tx in external.cmake and external.ld at 0xAE010000
- UI with NAC, SYSID, WACN, RFSSID, SITEID, TG, VCH fields
- 2.4 Msps TX, 155 MHz default, no baseband (m4_app_tag={0,0,0,0})

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Add P25 TX baseband processor (M4)

- P25TxConfigure = 102 in message.hpp + P25TxConfigureMessage
- image_tag_p25_tx in spi_image.hpp
- set_p25tx_data() in baseband_api (copies dibits to bb_data, sends msg)
- proc_p25_tx registered in baseband CMakeLists (tag P25T)
- m4_app_tag updated to {'P','2','5','T'}
- TX wired: transmits P25 FSW test pattern (512 dibits) via M4 C4FM proc
- on_tx_progress handler stops TX when frame complete

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* p25_tx: implement correct P25 TSBK encoding from ccemu

- BCH(63,16) via generator matrix (not polynomial division)
- CRC-CCITT bit-by-bit init=0 over 80 bits
- 1/2-rate trellis encoder (4 states)
- DataInterleave per TIA-102
- Status symbol insertion (SS=0x02 every 35 dibits)
- TSBK rotation: IDEN_UP -> NET_STS -> RFSS_STS -> NET_STS
- tsbk_idx_ persists across buffer refills, resets on stop_tx

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* p25_tx: apply clang-format

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* p25_tx: fix HackRF lockup - zero output buffer when idle

When configured=false, execute() returned without writing to the
output buffer. The DMA would re-use stale IQ samples from the
previous cycle, sending garbage to the HackRF and causing it to
lock up mid-transmission.

Fix: explicitly zero the output buffer when the proc is idle.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* p25_tx: address PR review feedback and fix TX restart lockup

- Replace NumberField with SymField::Type::Hex for NAC, SYSID, WACN,
  RFSSID, SITEID, TG, VCH (hex values should display as hex)
- Add voice grant TSBK (OpcodeGrpVChGrant 0x00) to rotation cycle;
  rotation is now 5-step: IDEN_UP->NET_STS->RFSS_STS->GRP_V_GRANT->NET_STS
- Wire TG and VCH fields into fill_tx_buffer for voice grant encoding
- Reset txprogress_message.done=false on new P25TxConfigure in baseband
- Add #include <cstring> to baseband_api.cpp (needed for memcpy)
- Fix TX restart lockup: remove baseband::shutdown() from stop_tx() so
  the M4 stays loaded between sessions; only shut down in destructor.
  Previously, the stale ShutdownMessage in the queue would be picked up
  by the restarted M4 on second TX, causing it to exit immediately and
  leaving the HackRF stuck in TX mode.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* ifndef guard instead of pragma
2026-03-17 08:41:01 +01:00

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6.2 KiB
C++

/*
* Copyright (C) 2016 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 __BASEBAND_API_H__
#define __BASEBAND_API_H__
#include "message.hpp"
#include "pocsag_packet.hpp"
#include "jammer.hpp"
#include "dsp_fir_taps.hpp"
#include "spi_image.hpp"
#include <cstddef>
namespace baseband {
struct AMConfig {
const fir_taps_real<32> decim_1; // added to handle two var LPF in AMFM to avoid aliasing when spectrum zoom factor 2.
const fir_taps_real<32> decim_2; // added to handle two var types decim_2 9k, 6k
const fir_taps_complex<64> channel;
const AMConfigureMessage::Modulation modulation;
const iir_biquad_config_t audio_12k_iir_filter_config; // added to handle two var IIR filter types : 300 hpf(as before) , 1500Hz lpf for Wefax.
const size_t spectrum_decimation_factor; // used to handle LCD AM waterfall zoom x1 / zoom x2.
void apply() const;
};
struct NBFMConfig {
const fir_taps_real<24> decim_0;
const fir_taps_real<32> decim_1;
const fir_taps_real<32> channel;
const size_t deviation;
void apply(const uint8_t squelch_level) const;
};
struct WFMConfig {
const fir_taps_real<24> decim_0; // To handle all 3 WFM filters , 200k, 180k and 80K-
const fir_taps_real<16> decim_1;
void apply() const;
};
struct WFMAMConfig {
const fir_taps_real<24> decim_0; // To handle WFM filter BW=40K for NOAA APT
const fir_taps_real<32> decim_1;
const fir_taps_real<64> taps_64_lp_bpf; // to handle dynamically LPF / BPF .
void apply() const;
};
void set_tone(const uint32_t index, const uint32_t delta, const uint32_t duration);
void set_tones_config(const uint32_t bw, const uint32_t pre_silence, const uint16_t tone_count, const bool dual_tone, const bool audio_out);
void kill_tone();
void set_sstv_data(const uint8_t vis_code, const uint32_t pixel_duration);
void set_sstvrx_data(const uint8_t code);
void set_sstvrx_phase_slant(const int16_t phase, const int16_t slant);
void set_audiotx_config(const uint32_t divider, const float deviation_hz, const float audio_gain, uint8_t audio_shift_bits_s16, uint8_t bits_per_sample, const uint32_t tone_key_delta, const bool am_enabled, const bool dsb_enabled, const bool usb_enabled, const bool lsb_enabled);
void set_fifo_data(const int8_t* data);
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 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_fsk(const uint8_t samplesPerSymbol, const uint32_t syncWord, const uint8_t syncWordLength, const uint32_t preamble, const uint8_t preambleLength, uint16_t numDataBytes);
void set_aprs(const uint32_t baudrate);
void set_btlerx(uint8_t channel_number);
void set_btletx(uint8_t channel_number, char* macAddress, char* advertisementData, uint8_t pduType);
void set_nrf(const uint32_t baudrate, const uint32_t word_length, const uint32_t trigger_value, const bool trigger_word);
void set_ook_data(const uint32_t stream_length, const uint32_t samples_per_bit, const uint8_t repeat, const uint32_t pause_symbols, const uint8_t de_bruijn_length = 0);
void kill_ook();
void set_fsk_data(const uint32_t stream_length, const uint32_t samples_per_bit, const uint32_t shift, const uint32_t progress_notice);
void set_pocsag(int8_t baud_config = -1);
void set_adsb();
void set_jammer(const bool run, const jammer::JammerType type, const uint32_t speed);
void set_rds_data(const uint16_t message_length);
void set_spectrum(
const size_t sampling_rate,
const size_t trigger);
void set_time_sink(
const size_t sampling_rate,
const size_t trigger);
void set_siggen_tone(const uint32_t tone);
void set_siggen_config(const uint32_t bw, const uint32_t shape, const uint32_t duration);
void set_spectrum_painter_config(const uint16_t width, const uint16_t height, bool update, int32_t bw);
void set_subghzd_config(uint8_t modulation, uint32_t sampling_rate);
void set_moreserx_config(uint8_t mode);
void set_morsetx_config(uint8_t mode, uint32_t tone, float fm_delta);
void set_morsetx_key(bool key_down);
void set_wefax_config(uint8_t lpm, uint8_t ioc);
void set_noaaapt_config();
void set_flex_config();
void set_bitstream_config(uint32_t deviation, uint8_t mode); // mode 0 for am, 1 for 2fsk
void set_rtty_config(uint16_t baud, uint16_t shift, uint8_t* payload = nullptr, uint16_t payload_length = 0); // baud*100
void set_rtty_config(RTTYDataMessage& message);
void set_epirb_tx_config(EPIRBTXDataMessage& message);
void set_p25tx_data(const uint8_t* dibits, uint16_t frame_length);
void request_roger_beep();
void request_rssi_beep();
void request_beep_stop();
void request_audio_beep(uint32_t freq, uint32_t sample_rate, uint32_t duration_ms);
void run_image(const portapack::spi_flash::image_tag_t image_tag);
void run_prepared_image(const uint32_t m4_code);
void shutdown();
void spectrum_streaming_start();
void spectrum_streaming_stop();
/* NB: sample_rate should be desired rate. Don't pre-scale. */
void set_sample_rate(uint32_t sample_rate, OversampleRate oversample_rate = OversampleRate::None);
void capture_start(CaptureConfig* const config);
void capture_stop();
void replay_start(ReplayConfig* const config);
void replay_stop();
} /* namespace baseband */
#endif /*__BASEBAND_API_H__*/