mirror of
https://github.com/portapack-mayhem/mayhem-firmware.git
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Added tetra rx ext app (#3257)
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#ifndef __UI_TETRA_RX_H__
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#define __UI_TETRA_RX_H__
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#include "ui.hpp"
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#include "ui_language.hpp"
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#include "ui_navigation.hpp"
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#include "ui_receiver.hpp"
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#include "ui_freq_field.hpp"
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#include "app_settings.hpp"
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#include "radio_state.hpp"
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#include "log_file.hpp"
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#include "utility.hpp"
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#include "message.hpp"
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#include <array>
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#include <string>
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using namespace ui;
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namespace ui::external_app::tetra_rx {
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class TetraChannelDecoder {
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public:
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struct Result {
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enum class Type { None,
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Sync,
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SyncFull,
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Dnb };
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Type type{Type::None};
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bool is_ok{false};
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uint8_t sync_errors{0};
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bool inverted{false};
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uint16_t crc{0};
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int cost{0};
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uint8_t timeslot{0xff};
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uint8_t frame_number{0xff};
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uint16_t mcc{0xffff};
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uint16_t mnc{0xffff};
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uint8_t bcc{0xff};
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uint8_t pdu_type{0xff};
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uint16_t la{0xffff};
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uint8_t encryption{0xff};
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uint8_t cmce_type{0xff};
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uint16_t call_id{0xffff};
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uint32_t calling_ssi{0};
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std::array<uint8_t, 34> payload{};
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};
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std::string get_pdu_name(uint8_t pdu_type) {
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switch (pdu_type) {
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case 0:
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return "MAC-RESOURCE";
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case 1:
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return "MAC-FRAG";
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case 2:
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return "SYSINFO/BCAST";
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case 3:
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return "MAC-U-SIGNAL";
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default:
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return "UNK_" + std::to_string(pdu_type);
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}
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}
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Result decode_burst(const TetraBurstMessage& message);
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Result decode_dnb(const TetraDnbMessage& message);
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private:
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static constexpr size_t BLK1_OFFSET_BITS = 94;
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static constexpr size_t BLK1_LEN_BITS = 120;
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static constexpr size_t TMO_BLK2_OFFSET_BITS = 282;
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static constexpr size_t BLK2_LEN_BITS = 216;
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static constexpr size_t SB1_TYPE1_BITS = 60;
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static constexpr size_t SB1_TYPE2_BITS = 80;
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static constexpr size_t SB1_INTERLEAVE_A = 11;
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static constexpr size_t SB2_TYPE1_BITS = 124;
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static constexpr size_t SB2_TYPE2_BITS = 144;
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static constexpr size_t SB2_INTERLEAVE_A = 101;
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static constexpr size_t SCH_F_LEN_BITS = 432;
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static constexpr size_t SCH_F_TYPE1_BITS = 268;
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static constexpr size_t SCH_F_TYPE2_BITS = 288;
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static constexpr size_t SCH_F_INTERLEAVE_A = 103;
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uint16_t last_mcc{0};
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uint16_t last_mnc{0};
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uint8_t last_bcc{0};
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bool network_synced{false};
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// Viterbi buffer
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uint8_t trace_buffer[9216];
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template <size_t OutBytes>
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bool decode_block(const std::array<uint8_t, 63>& burst,
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size_t offset,
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size_t len_t5,
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size_t type1_bits,
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size_t type2_bits,
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size_t interleave_a,
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std::array<uint8_t, OutBytes>& out,
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uint16_t& crc,
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int& cost,
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uint32_t scramb_init);
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void parse_sync_pdu(Result& result);
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void parse_mac_pdu(Result& result);
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uint32_t read_bits(const uint8_t* bytes, size_t bit, size_t count) const;
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template <size_t N>
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uint8_t get_bit(const std::array<uint8_t, N>& arr, size_t bit_idx) const {
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return (arr[bit_idx / 8] >> (7 - (bit_idx % 8))) & 0x01;
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}
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template <size_t N>
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void set_bit(std::array<uint8_t, N>& arr, size_t bit_idx, uint8_t val) const {
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if (val)
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arr[bit_idx / 8] |= (1 << (7 - (bit_idx % 8)));
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else
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arr[bit_idx / 8] &= ~(1 << (7 - (bit_idx % 8)));
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}
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};
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class TetraRxView : public View {
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public:
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TetraRxView(NavigationView& nav);
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~TetraRxView();
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void focus() override;
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std::string title() const override { return "Tetra RX"; };
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private:
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NavigationView& nav_;
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RxRadioState radio_state_{};
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app_settings::SettingsManager settings_{"rx_tetra", app_settings::Mode::RX};
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uint32_t packet_count{0};
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uint32_t valid_count{0};
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uint32_t h_valid_count{0};
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uint32_t dnb_count{0};
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RxFrequencyField field_frequency{{UI_POS_X(0), UI_POS_Y(0)}, nav_};
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RFAmpField field_rf_amp{{UI_POS_X(13), UI_POS_Y(0)}};
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LNAGainField field_lna{{UI_POS_X(15), UI_POS_Y(0)}};
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VGAGainField field_vga{{UI_POS_X(18), UI_POS_Y(0)}};
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RSSI rssi{{UI_POS_X_RIGHT(9), UI_POS_Y(0), UI_POS_WIDTH(9), 4}};
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Channel channel{{UI_POS_X_RIGHT(9), UI_POS_Y(0) + 5, UI_POS_WIDTH(9), 4}};
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Text text_mcc{{UI_POS_X(0), UI_POS_Y(1), UI_POS_WIDTH(15), UI_POS_HEIGHT(1)}, "MCC: ---"};
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Text text_mnc{{UI_POS_X(15), UI_POS_Y(1), UI_POS_WIDTH(15), UI_POS_HEIGHT(1)}, "MNC: ---"};
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Text text_ts{{UI_POS_X(0), UI_POS_Y(2), UI_POS_WIDTH(15), UI_POS_HEIGHT(1)}, "TS: -"}; // time slot
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Text text_fn{{UI_POS_X(15), UI_POS_Y(2), UI_POS_WIDTH(15), UI_POS_HEIGHT(1)}, "FN: -"}; // frame number
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Text text_bcc{{UI_POS_X(0), UI_POS_Y(3), UI_POS_WIDTH(15), UI_POS_HEIGHT(1)}, "BCC: -"}; // Base Station Color Code
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Text text_enc{{UI_POS_X(15), UI_POS_Y(3), UI_POS_WIDTH(15), UI_POS_HEIGHT(1)}, "ENC: -"}; // encoded or not
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Text text_la{{UI_POS_X(0), UI_POS_Y(4), UI_POS_WIDTH(15), UI_POS_HEIGHT(1)}, "LA: ----"}; // Location Area
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Text text_pdu{{UI_POS_X(15), UI_POS_Y(4), UI_POS_WIDTH(15), UI_POS_HEIGHT(1)}, "PDU: ----"}; // pdu content type
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Text text_debug{{UI_POS_X(0), UI_POS_Y(5), UI_POS_MAXWIDTH, UI_POS_HEIGHT(1)}, "Syn: 0, V: 0, H: 0, E:0"}; // sync, valid, h_valid, errors corrected in top part
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Console console{{UI_POS_X(0), UI_POS_Y(6) + 8, UI_POS_MAXWIDTH, screen_height - (UI_POS_Y(7) + 8)}};
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TetraChannelDecoder decoder{};
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void on_data_tetra(const TetraBurstMessage&);
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void on_data_dnb(const TetraDnbMessage&);
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uint8_t rate_limiter{0}; // limiter, to keep the device responsive
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void on_timer();
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MessageHandlerRegistration message_handler_frame_sync{
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Message::ID::DisplayFrameSync,
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[this](const Message* const) {
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this->on_timer();
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}};
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MessageHandlerRegistration message_handler_packet{
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Message::ID::TetraBsch,
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[this](Message* const p) {
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this->on_data_tetra(*static_cast<const TetraBurstMessage*>(p));
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}};
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MessageHandlerRegistration message_handler_dnb{
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Message::ID::TetraDnb,
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[this](Message* const p) {
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this->on_data_dnb(*static_cast<const TetraDnbMessage*>(p));
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}};
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};
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} // namespace ui::external_app::tetra_rx
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#endif
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