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https://github.com/lwvmobile/dsd-fme.git
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T_Max Frame Sync Work; Reorganizing;
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lwvmobile
121
include/dsd.h
121
include/dsd.h
@@ -70,39 +70,6 @@ typedef struct
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char groupName[50];
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} groupinfo;
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typedef struct
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{
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uint8_t RFChannelType;
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uint8_t FunctionnalChannelType;
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uint8_t Option;
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uint8_t Direction;
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uint8_t CompleteLich; /* 7 bits of LICH without parity */
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uint8_t PreviousCompleteLich; /* 7 bits of previous LICH without parity */
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} NxdnLich_t;
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typedef struct
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{
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uint8_t StructureField;
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uint8_t RAN;
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uint8_t Data[18];
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uint8_t CrcIsGood;
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} NxdnSacchRawPart_t;
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typedef struct
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{
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uint8_t Data[80];
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uint8_t CrcIsGood;
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} NxdnFacch1RawPart_t;
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typedef struct
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{
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uint8_t Data[184];
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uint8_t CrcIsGood;
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} NxdnFacch2RawPart_t;
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typedef struct
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{
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@@ -143,11 +110,11 @@ typedef struct
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uint8_t NextIVComputed[8];
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} NxdnElementsContent_t;
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//Read Solomon (12,9) constant
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//Reed Solomon (12,9) constant
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#define RS_12_9_DATASIZE 9
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#define RS_12_9_CHECKSUMSIZE 3
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//Read Solomon (12,9) struct
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//Reed Solomon (12,9) struct
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typedef struct
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{
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uint8_t data[RS_12_9_DATASIZE+RS_12_9_CHECKSUMSIZE];
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@@ -255,14 +222,14 @@ typedef struct
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int p25status;
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int p25tg;
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int scoperate;
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char audio_in_dev[2048]; //increase size for super long directory/file names?
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char audio_in_dev[2048]; //increase size for super long directory/file names
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int audio_in_fd;
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SNDFILE *audio_in_file;
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SF_INFO *audio_in_file_info;
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uint32_t rtlsdr_center_freq;
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int rtlsdr_ppm_error; //was int, changed to float
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int audio_in_type; // 0 for device, 1 for file, 3 for rtlsdr
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int rtlsdr_ppm_error;
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int audio_in_type;
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char audio_out_dev[1024];
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int audio_out_fd;
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SNDFILE *audio_out_file;
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@@ -390,7 +357,7 @@ typedef struct
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int wav_interpolator;
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int wav_decimator;
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int p25_trunk; //enable experimental P25 trunking with RIGCTL (or RTLFM)
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int p25_trunk; //experimental P25 trunking with RIGCTL (or RTLFM)
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int p25_is_tuned; //set to 1 if currently on VC, set back to 0 if on CC
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//csv import filenames
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@@ -423,7 +390,6 @@ typedef struct
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int audio_out_idx2;
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int audio_out_idxR;
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int audio_out_idx2R;
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//int wav_out_bytes;
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int center;
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int jitter;
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int synctype;
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@@ -470,7 +436,6 @@ typedef struct
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int numtdulc;
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int firstframe;
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char slot0light[8];
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//char slot1light[8];
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float aout_gain;
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float aout_gainR;
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float aout_max_buf[200];
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@@ -537,16 +502,10 @@ typedef struct
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unsigned int nxdn_key;
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char nxdn_call_type[1024];
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char dmr_callsign[2][6][99]; //plenty of room in case of overflow;
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char dmr_lrrp[2][6][9999]; //memory hog
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char dmr_lrrp[2][6][9999]; //need to fix this
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unsigned long long int dmr_lrrp_source[2];
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NxdnSacchRawPart_t NxdnSacchRawPart[4];
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NxdnFacch1RawPart_t NxdnFacch1RawPart[2];
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NxdnFacch2RawPart_t NxdnFacch2RawPart;
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NxdnElementsContent_t NxdnElementsContent;
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NxdnLich_t NxdnLich;
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int printNXDNAmbeVoiceSampleHex;
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char ambe_ciphered[49];
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char ambe_deciphered[49];
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@@ -670,7 +629,7 @@ typedef struct
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//trunking group and lcn freq list
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long int trunk_lcn_freq[26]; //max number on an EDACS system, should be enough on DMR too hopefully
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groupinfo group_array[0x3FF]; //max supported by Cygwin is 3FFF (signed vs unsigned?)
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groupinfo group_array[0x3FF]; //max supported by Cygwin is 3FFF, I hope nobody actually tries to import this many groups
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unsigned int group_tally; //tally number of groups imported from CSV file for referencing later
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int lcn_freq_count;
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int lcn_freq_roll; //number we have 'rolled' to in search of the CC
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@@ -684,7 +643,7 @@ typedef struct
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uint8_t nxdn_sacch_frame_segment[4][18]; //part of frame by 18 bits
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uint8_t nxdn_sacch_frame_segcrc[4];
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uint8_t nxdn_alias_block_number;
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char nxdn_alias_block_segment[4][4][8]; //might be too large? maybe just an 8?
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char nxdn_alias_block_segment[4][4][8];
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} dsd_state;
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@@ -840,45 +799,47 @@ void processP2(dsd_opts * opts, dsd_state * state); //P2
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void processTSBK(dsd_opts * opts, dsd_state * state);
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short dmr_filter(short sample);
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short nxdn_filter(short sample);
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short dpmr_filter(short sample);
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int strncmperr(const char *s1, const char *s2, size_t size, int MaxErr);
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/* Global functions */ //also borrowed
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/* Global functions */
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uint32_t ConvertBitIntoBytes(uint8_t * BufferIn, uint32_t BitLength);
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uint32_t ConvertAsciiToByte(uint8_t AsciiMsbByte, uint8_t AsciiLsbByte, uint8_t * OutputByte);
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void Convert49BitSampleInto7Bytes(char * InputBit, char * OutputByte);
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void Convert7BytesInto49BitSample(char * InputByte, char * OutputBit);
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void ncursesOpen (dsd_opts * opts, dsd_state * state);
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void ncursesPrinter (dsd_opts * opts, dsd_state * state);
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void ncursesClose ();
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/* NXDN frame decoding functions */
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void ProcessNXDNFrame(dsd_opts * opts, dsd_state * state, uint8_t Inverted);
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void ProcessNxdnRCCHFrame(dsd_opts * opts, dsd_state * state, uint8_t Inverted);
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void ProcessNxdnRTCHFrame(dsd_opts * opts, dsd_state * state, uint8_t Inverted);
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void ProcessNxdnRDCHFrame(dsd_opts * opts, dsd_state * state, uint8_t Inverted);
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void ProcessNxdnRTCH_C_Frame(dsd_opts * opts, dsd_state * state, uint8_t Inverted);
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void ProcessNXDNIdleData (dsd_opts * opts, dsd_state * state, uint8_t Inverted);
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void ProcessNXDNFacch1Data (dsd_opts * opts, dsd_state * state, uint8_t Inverted);
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void ProcessNXDNUdchData (dsd_opts * opts, dsd_state * state, uint8_t Inverted);
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//end borrow
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//new NXDN Functions start here!
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void nxdn_frame (dsd_opts * opts, dsd_state * state);
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void nxdn_descramble (uint8_t dibits[], int len);
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void nxdn_deperm_facch (dsd_opts * opts, dsd_state * state, uint8_t bits[144]);
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void nxdn_deperm_sacch (dsd_opts * opts, dsd_state * state, uint8_t bits[60]);
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void nxdn_deperm_cac (dsd_opts * opts, dsd_state * state, uint8_t bits[300]);
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void nxdn_deperm_facch2_udch (dsd_opts * opts, dsd_state * state, uint8_t bits[348]);
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void nxdn_message_type (dsd_opts * opts, dsd_state * state, uint8_t MessageType);
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void nxdn_voice (dsd_opts * opts, dsd_state * state, int voice, uint8_t dbuf[182]);
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//utility functions from OP25 needed by NXDN frame handler
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static inline int load_i(const uint8_t val[], int len);
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static inline void cfill(uint8_t result[], const uint8_t src[], int len);
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static inline void trellis_encode(uint8_t result[], const uint8_t source[], int result_len, int reg);
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static inline void trellis_decode(uint8_t result[], const uint8_t source[], int result_len);
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//OP25 CRC functions
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static uint8_t crc6(const uint8_t buf[], int len);
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static uint16_t crc12f(const uint8_t buf[], int len);
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static uint16_t crc15(const uint8_t buf[], int len);
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static uint16_t crc16cac(const uint8_t buf[], int len);
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/* NXDN functions */
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void CNXDNConvolution_start(void);
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void CNXDNConvolution_decode(uint8_t s0, uint8_t s1);
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void CNXDNConvolution_chainback(unsigned char* out, unsigned int nBits);
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void CNXDNConvolution_encode(const unsigned char* in, unsigned char* out, unsigned int nBits);
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uint8_t NXDN_decode_LICH(uint8_t InputLich[8],
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uint8_t * RFChannelType,
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uint8_t * FunctionnalChannelType,
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uint8_t * Option,
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uint8_t * Direction,
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uint8_t * CompleteLichBinaryFormat,
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uint8_t Inverted);
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uint8_t NXDN_SACCH_raw_part_decode(uint8_t * Input, uint8_t * Output);
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//keeping these
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void NXDN_SACCH_Full_decode(dsd_opts * opts, dsd_state * state);
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uint8_t NXDN_FACCH1_decode(uint8_t * Input, uint8_t * Output);
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uint8_t NXDN_UDCH_decode(uint8_t * Input, uint8_t * Output);
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void NXDN_Elements_Content_decode(dsd_opts * opts, dsd_state * state,
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uint8_t CrcCorrect, uint8_t * ElementsContent);
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void NXDN_decode_VCALL(dsd_opts * opts, dsd_state * state, uint8_t * Message);
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@@ -886,9 +847,7 @@ void NXDN_decode_VCALL_IV(dsd_opts * opts, dsd_state * state, uint8_t * Message)
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char * NXDN_Call_Type_To_Str(uint8_t CallType);
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void NXDN_Voice_Call_Option_To_Str(uint8_t VoiceCallOption, uint8_t * Duplex, uint8_t * TransmissionMode);
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char * NXDN_Cipher_Type_To_Str(uint8_t CipherType);
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uint16_t CRC15BitNXDN(uint8_t * BufferIn, uint32_t BitLength);
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uint16_t CRC12BitNXDN(uint8_t * BufferIn, uint32_t BitLength);
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uint8_t CRC6BitNXDN(uint8_t * BufferIn, uint32_t BitLength);
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void NXDN_decode_Alias(dsd_opts * opts, dsd_state * state, uint8_t * Message);
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void dPMRVoiceFrameProcess(dsd_opts * opts, dsd_state * state);
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void printdPMRAmbeVoiceSample(dsd_opts * opts, dsd_state * state);
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@@ -911,7 +870,7 @@ uint32_t BPTC_196x96_Extract_Data(uint8_t InputDeInteleavedData[196], uint8_t DM
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uint32_t BPTC_128x77_Extract_Data(uint8_t InputDataMatrix[8][16], uint8_t DMRDataExtracted[77]);
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uint32_t BPTC_16x2_Extract_Data(uint8_t InputInterleavedData[32], uint8_t DMRDataExtracted[32]);
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//Read Solomon (12,9) functions
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//Reed Solomon (12,9) functions
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void rs_12_9_calc_syndrome(rs_12_9_codeword_t *codeword, rs_12_9_poly_t *syndrome);
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uint8_t rs_12_9_check_syndrome(rs_12_9_poly_t *syndrome);
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rs_12_9_correct_errors_result_t rs_12_9_correct_errors(rs_12_9_codeword_t *codeword, rs_12_9_poly_t *syndrome, uint8_t *errors_found);
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@@ -1014,7 +973,7 @@ bool GetSignalLevelEx(int sockfd, double *dBFS, int n_samp);
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//UDP socket connection
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int UDPBind (char *hostname, int portno);
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//Edacs
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//EDACS
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void edacs(dsd_opts * opts, dsd_state * state);
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unsigned long long int edacs_bch (unsigned long long int message);
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@@ -1032,10 +991,9 @@ void cleanup_rtlsdr_stream();
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void get_rtlsdr_sample(int16_t *sample, dsd_opts * opts, dsd_state * state);
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void rtlsdr_sighandler();
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#endif
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//TRELLIS
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//DMR TRELLIS
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void CDMRTrellisTribitsToBits(const unsigned char* tribits, unsigned char* payload);
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unsigned int CDMRTrellisCheckCode(const unsigned char* points, unsigned char* tribits);
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//unsigned int CDMRTrellisCheckCode(const unsigned char* points, unsigned char* state, unsigned char* tribits);
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bool CDMRTrellisFixCode(unsigned char* points, unsigned int failPos, unsigned char* payload);
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void CDMRTrellisDeinterleave(const unsigned char* data, signed char* dibits);
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void CDMRTrellisDibitsToPoints(const signed char* dibits, unsigned char* points);
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@@ -1049,7 +1007,6 @@ int ez_rs28_facch (int payload[156], int parity[114]); //ezpwd bridge for FME
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int ez_rs28_sacch (int payload[180], int parity[132]); //ezpwd bridge for FME
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unsigned long long int isch_lookup (unsigned long long int isch); //isch map lookup
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int bd_bridge (int payload[196], uint8_t decoded[12]); //bridge to Michael Ossmann Block De-interleaver and 1/2 rate trellis decoder
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// uint16_t crc16(uint8_t buf[], int len);
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int crc16_lb_bridge (int payload[190], int len);
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int crc12_xb_bridge (int payload[190], int len);
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