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dsd-fme_20_06_2023/src/dmr_dburst.c

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/*-------------------------------------------------------------------------------
* dmr_dburst.c
* DMR Data Burst Handling and related BPTC/FEC/CRC Functions
*
* Portions of BPTC/FEC/CRC code from LouisErigHerve
* Source: https://github.com/LouisErigHerve/dsd/blob/master/src/dmr_sync.c
*
* LWVMOBILE
* 2022-12 DSD-FME Florida Man Edition
*-----------------------------------------------------------------------------*/
//WIP: Unified Single Block Data - USBD -- TODO: USBD LIP Protocol Handling
//WIP: UDT Header and Blocks (coded - need samples)
//WIP: CRC9/CRC32 on Rate 1 Data (need samples)
//WIP: Reverse Channel Signalling - RC single burst BPTC/7-bit CRC (rc interleave) and when to run RC and not SB
//WIP: Single Burst Embedded LC - Non-RC single burst LC - Look for Late Entry Alg/Key
#include "dsd.h"
void dmr_data_burst_handler(dsd_opts * opts, dsd_state * state, uint8_t info[196], uint8_t databurst)
{
uint32_t i, j, k;
uint32_t CRCExtracted = 0;
uint32_t CRCComputed = 0;
uint32_t CRCCorrect = 0;
uint32_t IrrecoverableErrors = 0;
uint8_t slot = state->currentslot;
uint8_t block = state->data_block_counter[slot];
//confirmed data
uint8_t dbsn = 0; //data block serial number for confirmed data blocks
uint8_t blockcounter = 0; //local block count
uint8_t confdatabits[250]; //array to reshuffle conf data block bits into sequence for crc9 check
memset (confdatabits, 0, sizeof(confdatabits));
//BPTC 196x96 Specific
uint8_t BPTCDeInteleavedData[196];
uint8_t BPTCDmrDataBit[96];
uint8_t BPTCDmrDataByte[12];
//Embedded Signalling Specific
uint8_t BptcDataMatrix[8][16];
uint8_t LC_DataBit[77];
uint8_t LC_DataBytes[10];
int Burst = -1;
memset (BPTCDeInteleavedData, 0, sizeof(BPTCDeInteleavedData));
memset (BPTCDmrDataBit, 0, sizeof(BPTCDmrDataBit));
memset (BPTCDmrDataByte, 0, sizeof(BPTCDmrDataByte));
memset (BptcDataMatrix, 0, sizeof(BptcDataMatrix));
memset (LC_DataBit, 0, sizeof(LC_DataBit));
memset (LC_DataBytes, 0, sizeof(LC_DataBytes));
//PDU Bytes and Bits
uint8_t DMR_PDU[25];
uint8_t DMR_PDU_bits[196];
memset (DMR_PDU, 0, sizeof (DMR_PDU));
memset (DMR_PDU_bits, 0, sizeof (DMR_PDU_bits));
uint8_t R[3];
uint8_t BPTCReservedBits = 0;
uint8_t is_ras = 0;
uint8_t crc_original_validity = 0;
uint32_t crcmask = 0;
uint8_t crclen = 0;
uint8_t is_bptc = 0;
uint8_t is_trellis = 0;
uint8_t is_emb = 0;
uint8_t is_lc = 0;
uint8_t is_full = 0;
uint8_t is_udt = 0;
uint8_t pdu_len = 0;
uint8_t pdu_start = 0; //starting value of pdu (0 normal, 2 for confirmed)
uint8_t usbd_st = 0; //usbd service type
switch(databurst){
case 0x00: //PI
is_bptc = 1;
crclen = 16;
crcmask = 0x6969; //insert pi and 69 jokes here
pdu_len = 12; //12 bytes
sprintf(state->fsubtype, " PI ");
break;
case 0x01: //VLC
is_bptc = 1;
is_lc = 1;
crclen = 24;
crcmask = 0x969696;
pdu_len = 12; //12 bytes
sprintf(state->fsubtype, " VLC ");
break;
case 0x02: //TLC
is_bptc = 1;
is_lc = 1;
crcmask = 0x999999;
crclen = 24;
pdu_len = 12; //12 bytes
sprintf(state->fsubtype, " TLC ");
break;
case 0x03: //CSBK
is_bptc = 1;
crclen = 16;
crcmask = 0xA5A5;
pdu_len = 12; //12 bytes
sprintf(state->fsubtype, " CSBK");
break;
case 0x04: //MBC Header
is_bptc = 1;
crclen = 16;
crcmask = 0xAAAA;
pdu_len = 12; //12 bytes
sprintf(state->fsubtype, " MBCH");
break;
case 0x05: //MBC Continuation
is_bptc = 1;
//let block assembler carry out crc on the completed message
pdu_len = 12; //12 bytes
sprintf(state->fsubtype, " MBCC");
break;
case 0x06: //Data Header
is_bptc = 1;
crclen = 16;
crcmask = 0xCCCC;
pdu_len = 12; //12 bytes
sprintf(state->fsubtype, " DATA");
break;
case 0x07: //1/2 Rate Data
is_bptc = 1;
crclen = 9; //confirmed data only
crcmask = 0x0F0;
pdu_len = 12; //12 bytes unconfirmed
sprintf(state->fsubtype, " R12U ");
if (state->data_conf_data[slot] == 1)
{
pdu_len = 10;
pdu_start = 2; //start at plus two when assembling
sprintf(state->fsubtype, " R12C ");
}
if (state->data_header_format[slot] == 0) //UDT 1/2 Encoded Blocks
{
is_udt = 1;
sprintf(state->fsubtype, " UDTC ");
}
break;
case 0x08: //3/4 Rate Data
is_trellis = 1;
crclen = 9; //confirmed data only
crcmask = 0x1FF;
pdu_len = 18; //18 bytes unconfirmed
sprintf(state->fsubtype, " R34U ");
if (state->data_conf_data[slot] == 1)
{
pdu_len = 16;
pdu_start = 2; //start at plus two when assembling
sprintf(state->fsubtype, " R34C ");
}
break;
case 0x09: //Idle
//pseudo-random data fill, no need to do anything with this
sprintf(state->fsubtype, " IDLE ");
break;
case 0x0A: //1 Rate Data
crclen = 9; //confirmed data only
crcmask = 0x10F;
is_full = 1;
pdu_len = 25; //196 bits - 24.5 bytes
sprintf(state->fsubtype, " R_1U ");
if (state->data_conf_data[slot] == 1)
{
pdu_len = 23;
pdu_start = 2; //start at plus two when assembling
sprintf(state->fsubtype, " R_1C ");
}
break;
case 0x0B: //Unified Single Block Data USBD
is_bptc = 1;
crclen = 16;
crcmask = 0x3333;
pdu_len = 12; //12 bytes
sprintf(state->fsubtype, " USBD ");
break;
//special types (not real data 'sync' bursts)
case 0xEB: //Embedded Signalling
crclen = 5;
is_emb = 1;
pdu_len = 9;
break;
default:
//Slot Type FEC should catch this so we never see it,
//but if it doesn't, then we can still dump the entire 'packet'
//treat like rate 1 unconfirmed data
is_full = 1;
pdu_len = 25; //196 bits - 24.5 bytes
sprintf(state->fsubtype, " _UNK ");
break;
}
//flag off prop head when not looking at data blocks
if (databurst != 0x6 && databurst != 0x7 && databurst != 0x8 && databurst != 0xA && databurst != 0xB) state->data_p_head[slot] = 0;
if (databurst != 0xEB)
{
if (state->dmr_ms_mode == 0) fprintf(stderr, "| Color Code=%02d ", state->dmr_color_code);
fprintf(stderr, "|%s", state->fsubtype);
//'DSP' output to file
if (opts->use_dsp_output == 1)
{
FILE * pFile; //file pointer
pFile = fopen (opts->dsp_out_file, "a");
fprintf (pFile, "\n%d 98 ", slot+1); //'98' is CACH designation value
for (i = 0; i < 6; i++) //3 byte CACH
{
int cach_byte = (state->dmr_stereo_payload[i*2] << 2) | state->dmr_stereo_payload[i*2 + 1];
fprintf (pFile, "%X", cach_byte); //nibble, not a byte, next time I look at this and wonder why its not %02X
}
fprintf (pFile, "\n%d %02X ", slot+1, databurst); //use hex value of current data burst type
for (i = 6; i < 72; i++) //33 bytes, no CACH
{
int dsp_byte = (state->dmr_stereo_payload[i*2] << 2) | state->dmr_stereo_payload[i*2 + 1];
fprintf (pFile, "%X", dsp_byte);
}
fclose (pFile);
}
}
//Most Data Sync Burst types will use the bptc 196x96
if (is_bptc)
{
CRCExtracted = 0;
CRCComputed = 0;
IrrecoverableErrors = 0;
/* Deinterleave DMR data */
BPTCDeInterleaveDMRData(info, BPTCDeInteleavedData);
/* Extract the BPTC 196,96 DMR data */
IrrecoverableErrors = BPTC_196x96_Extract_Data(BPTCDeInteleavedData, BPTCDmrDataBit, R);
/* Fill the reserved bit (R(0)-R(2) of the BPTC(196,96) block) */
BPTCReservedBits = (R[0] & 0x01) | ((R[1] << 1) & 0x02) | ((R[2] << 2) & 0x04);
//debug print
//fprintf (stderr, " RAS? %X - %d %d %d", BPTCReservedBits, R[0], R[1], R[2]);
/* Convert the 96 bits BPTC data into 12 bytes */
k = 0;
for(i = 0; i < 12; i++)
{
BPTCDmrDataByte[i] = 0;
for(j = 0; j < 8; j++)
{
BPTCDmrDataByte[i] = BPTCDmrDataByte[i] << 1;
BPTCDmrDataByte[i] = BPTCDmrDataByte[i] | (BPTCDmrDataBit[k] & 0x01);
k++;
}
}
/* Fill the CRC extracted (before Reed-Solomon (12,9) FEC correction) */
CRCExtracted = 0;
for(i = 0; i < crclen; i++)
{
CRCExtracted = CRCExtracted << 1;
CRCExtracted = CRCExtracted | (uint32_t)(BPTCDmrDataBit[i + 96 - crclen] & 1);
}
/* Apply the CRC mask (see DMR standard B.3.12 Data Type CRC Mask) */
CRCExtracted = CRCExtracted ^ crcmask;
/* Check/correct the BPTC data and compute the Reed-Solomon (12,9) CRC */
if (is_lc) CRCCorrect = ComputeAndCorrectFullLinkControlCrc(BPTCDmrDataByte, &CRCComputed, crcmask);
//set CRC to correct on unconfirmed 1/2 data blocks (for reporting due to no CRC available on these)
else if (state->data_conf_data[slot] == 0 && databurst == 0x7)
{
CRCComputed = 0;
CRCExtracted = 0;
CRCCorrect = 1;
}
//run CRC9 on intermediate and last 1/2 confirmed data blocks
else if (state->data_conf_data[slot] == 1 && databurst == 0x7)
{
blockcounter = state->data_block_counter[slot]; //current block number according to the counter
dbsn = (uint32_t)ConvertBitIntoBytes(&BPTCDmrDataBit[0], 7) + 1; //recover data block serial number
CRCExtracted = (uint32_t)ConvertBitIntoBytes(&BPTCDmrDataBit[7], 9); //extract CRC from data
CRCExtracted = CRCExtracted ^ crcmask;
//reorganize the BPTCDmrDataBit array into confdatabits, just for CRC9 check
//need to find a sample to confirm this
for(i = 0; i < 80; i++) confdatabits[i] = BPTCDmrDataBit[i + 16];
for(i = 0; i < 7; i++) confdatabits[i + 80] = BPTCDmrDataBit[i];
CRCComputed = ComputeCrc9Bit(confdatabits, 87);
if (CRCExtracted == CRCComputed)
{
CRCCorrect = 1;
state->data_block_crc_valid[slot][blockcounter] = 1;
}
else state->data_block_crc_valid[slot][blockcounter] = 0;
}
//run CCITT on other data forms
else
{
CRCComputed = ComputeCrcCCITT(BPTCDmrDataBit);
if (CRCComputed == CRCExtracted) CRCCorrect = 1;
else CRCCorrect = 0;
}
//set the 'RAS Flag', if no irrecoverable errors but bad crc, only when enabled by user (to prevent a lot of bad data CSBKs)
if (opts->aggressive_framesync == 0 && CRCCorrect == 0 && IrrecoverableErrors == 0 && BPTCReservedBits == 4) is_ras = 1;
//make sure the system type isn't Hytera, but could just be bad decodes on bad sample
if (BPTCDmrDataByte[1] == 0x68) is_ras = 0;
//if this is a RAS system, set the CRC to okay if irrecoverable errors are okay
//if we don't do this, then we can't view some data (CSBKs on RAS enabled systems)
if (is_ras == 1)
{
crc_original_validity = CRCCorrect;
CRCCorrect = 1;
}
if (databurst == 0x04 || databurst == 0x06) //MBC Header, Data Header
{
if (CRCCorrect)
{
state->data_block_crc_valid[slot][0] = 1;
}
else state->data_block_crc_valid[slot][0] = 0;
}
/* Convert corrected x bytes into x*8 bits */
for(i = 0, j = 0; i < pdu_len; i++, j+=8)
{
BPTCDmrDataBit[j + 0] = (BPTCDmrDataByte[i+pdu_start] >> 7) & 0x01;
BPTCDmrDataBit[j + 1] = (BPTCDmrDataByte[i+pdu_start] >> 6) & 0x01;
BPTCDmrDataBit[j + 2] = (BPTCDmrDataByte[i+pdu_start] >> 5) & 0x01;
BPTCDmrDataBit[j + 3] = (BPTCDmrDataByte[i+pdu_start] >> 4) & 0x01;
BPTCDmrDataBit[j + 4] = (BPTCDmrDataByte[i+pdu_start] >> 3) & 0x01;
BPTCDmrDataBit[j + 5] = (BPTCDmrDataByte[i+pdu_start] >> 2) & 0x01;
BPTCDmrDataBit[j + 6] = (BPTCDmrDataByte[i+pdu_start] >> 1) & 0x01;
BPTCDmrDataBit[j + 7] = (BPTCDmrDataByte[i+pdu_start] >> 0) & 0x01;
}
//convert to DMR_PDU and DMR_PDU_bits
for (i = 0; i < pdu_len; i++)
{
DMR_PDU[i] = BPTCDmrDataByte[i+pdu_start];
}
for (i = 0; i < pdu_len * 8; i++)
{
DMR_PDU_bits[i] = BPTCDmrDataBit[i];
}
}
//Embedded Signalling will use BPTC 128x77
if (is_emb)
{
CRCExtracted = 0;
CRCComputed = 0;
IrrecoverableErrors = 0;
/* First step : Reconstitute the BPTC 16x8 matrix */
Burst = 1; /* Burst B to E contains embedded signaling data */
k = 0;
for(i = 0; i < 16; i++)
{
for(j = 0; j < 8; j++)
{
/* Only the LSBit of the byte is stored */
BptcDataMatrix[j][i] = state->dmr_embedded_signalling[slot][Burst][k+8];
k++;
/* Go on to the next burst once 32 bit
* of the SNYC have been stored */
if(k >= 32)
{
k = 0;
Burst++;
}
} /* End for(j = 0; j < 8; j++) */
} /* End for(i = 0; i < 16; i++) */
/* Extract the 72 LC bit (+ 5 CRC bit) of the matrix */
IrrecoverableErrors = BPTC_128x77_Extract_Data(BptcDataMatrix, LC_DataBit);
/* Reconstitute the 5 bit CRC */
CRCExtracted = (uint32_t)ConvertBitIntoBytes(&LC_DataBit[72], 5);
/* Compute the 5 bit CRC */
CRCComputed = ComputeCrc5Bit(LC_DataBit);
if(CRCExtracted == CRCComputed) CRCCorrect = 1;
else CRCCorrect = 0;
for (i = 0; i < 72; i++)
{
DMR_PDU_bits[i] = LC_DataBit[i];
}
for (i = 0; i < 9; i++)
{
DMR_PDU[i] = (uint8_t)ConvertBitIntoBytes(&LC_DataBit[i*8], 8);
}
}
//the ugly one
if (is_trellis)
{
CRCExtracted = 0;
CRCComputed = 0;
IrrecoverableErrors = 1;
bool trellis_good = TRUE;
uint8_t tdibits[98];
memset (tdibits, 0, sizeof(tdibits));
//reconstitute info bits into reverse ordered dibits for the trellis decoder
for (i = 0; i < 98; i++)
{
tdibits[97-i] = (info[i*2] << 1) | info[i*2+1];
}
unsigned char TrellisReturn[18];
memset (TrellisReturn, 0, sizeof(TrellisReturn));
trellis_good = CDMRTrellisDecode(tdibits, TrellisReturn);
if (trellis_good == TRUE) IrrecoverableErrors = 0;
// else (fprintf (stderr, " Trellis Failure")); //debug print
for (i = 0; i < pdu_len; i++) //18
{
DMR_PDU[i] = (uint8_t)TrellisReturn[i+pdu_start];
}
for(i = 0, j = 0; i < 18; i++, j+=8)
{
DMR_PDU_bits[j + 0] = (TrellisReturn[i] >> 7) & 0x01;
DMR_PDU_bits[j + 1] = (TrellisReturn[i] >> 6) & 0x01;
DMR_PDU_bits[j + 2] = (TrellisReturn[i] >> 5) & 0x01;
DMR_PDU_bits[j + 3] = (TrellisReturn[i] >> 4) & 0x01;
DMR_PDU_bits[j + 4] = (TrellisReturn[i] >> 3) & 0x01;
DMR_PDU_bits[j + 5] = (TrellisReturn[i] >> 2) & 0x01;
DMR_PDU_bits[j + 6] = (TrellisReturn[i] >> 1) & 0x01;
DMR_PDU_bits[j + 7] = (TrellisReturn[i] >> 0) & 0x01;
}
//set CRC to correct on unconfirmed 3/4 data blocks (for reporting due to no CRC available on these)
if (state->data_conf_data[slot] == 0) CRCCorrect = 1;
//run CRC9 on intermediate and last 3/4 data blocks
else if (state->data_conf_data[slot] == 1)
{
blockcounter = state->data_block_counter[slot]; //current block number according to the counter
dbsn = (uint32_t)ConvertBitIntoBytes(&DMR_PDU_bits[0], 7) + 1; //recover data block serial number
CRCExtracted = (uint32_t)ConvertBitIntoBytes(&DMR_PDU_bits[7], 9); //extract CRC from data
CRCExtracted = CRCExtracted ^ crcmask;
//reorganize the DMR_PDU_bits array into confdatabits, just for CRC9 check
//confirmed working now!
for(i = 0; i < 128; i++) confdatabits[i] = DMR_PDU_bits[i + 16];
for(i = 0; i < 7; i++) confdatabits[i + 128] = DMR_PDU_bits[i];
CRCComputed = ComputeCrc9Bit(confdatabits, 135);
if (CRCExtracted == CRCComputed)
{
CRCCorrect = 1;
state->data_block_crc_valid[slot][blockcounter] = 1;
}
else
{
// IrrecoverableErrors = 9; //set as a shim since the trellis decoder is a pain to fix
state->data_block_crc_valid[slot][blockcounter] = 0;
}
}
//reorganize the DMR_PDU_bits into PDU friendly format (minus the dbsn and crc9)
memset (DMR_PDU_bits, 0, sizeof(DMR_PDU_bits));
for(i = 0, j = 0; i < pdu_len; i++, j+=8)
{
DMR_PDU_bits[j + 0] = (TrellisReturn[i+pdu_start] >> 7) & 0x01;
DMR_PDU_bits[j + 1] = (TrellisReturn[i+pdu_start] >> 6) & 0x01;
DMR_PDU_bits[j + 2] = (TrellisReturn[i+pdu_start] >> 5) & 0x01;
DMR_PDU_bits[j + 3] = (TrellisReturn[i+pdu_start] >> 4) & 0x01;
DMR_PDU_bits[j + 4] = (TrellisReturn[i+pdu_start] >> 3) & 0x01;
DMR_PDU_bits[j + 5] = (TrellisReturn[i+pdu_start] >> 2) & 0x01;
DMR_PDU_bits[j + 6] = (TrellisReturn[i+pdu_start] >> 1) & 0x01;
DMR_PDU_bits[j + 7] = (TrellisReturn[i+pdu_start] >> 0) & 0x01;
}
}
if (is_full) //Rate 1 Data
{
CRCExtracted = 0;
CRCComputed = 0;
IrrecoverableErrors = 0; //implicit, since there is no encoding
for (i = 0; i < 24; i++)
{
DMR_PDU[i] = (uint8_t)ConvertBitIntoBytes(&info[i*8], 8);
}
//leftover 4 bits, manual doesn't say which 4 so assuming last 4
//pushing last 4 to 25 and shifting it
DMR_PDU[25] = (uint8_t)ConvertBitIntoBytes(&info[192], 4);
DMR_PDU[25] = DMR_PDU[25] << 4;
//set CRC to correct on unconfirmed 1 rate data blocks (for reporting due to no CRC available on these)
if (state->data_conf_data[slot] == 0) CRCCorrect = 1;
//run CRC9 on intermediate and last 1 rate data blocks
else if (state->data_conf_data[slot] == 1)
{
blockcounter = state->data_block_counter[slot]; //current block number according to the counter
dbsn = (uint32_t)ConvertBitIntoBytes(&info[0], 7) + 1; //recover data block serial number
CRCExtracted = (uint32_t)ConvertBitIntoBytes(&info[7], 9); //extract CRC from data
CRCExtracted = CRCExtracted ^ crcmask;
//reorganize the info bit array into confdatabits, just for CRC9 check
//unconfirmed, haven't seen any samples with rate 1 data
for(i = 0; i < 176; i++) confdatabits[i] = info[i + 16];
for(i = 0; i < 7; i++) confdatabits[i + 176] = info[i];
CRCComputed = ComputeCrc9Bit(confdatabits, 183);
if (CRCExtracted == CRCComputed)
{
CRCCorrect = 1;
state->data_block_crc_valid[slot][blockcounter] = 1;
}
else state->data_block_crc_valid[slot][blockcounter] = 0;
}
//copy info to dmr_pdu_bits
memcpy(DMR_PDU_bits, info, sizeof(DMR_PDU_bits));
}
//time for some pi
if (databurst == 0x00) dmr_pi (opts, state, DMR_PDU, CRCCorrect, IrrecoverableErrors);
//full link control
if (databurst == 0x01) dmr_flco (opts, state, DMR_PDU_bits, CRCCorrect, IrrecoverableErrors, 1); //VLC
if (databurst == 0x02) dmr_flco (opts, state, DMR_PDU_bits, CRCCorrect, IrrecoverableErrors, 2); //TLC
if (databurst == 0xEB) dmr_flco (opts, state, DMR_PDU_bits, CRCCorrect, IrrecoverableErrors, 3); //EMB
//dmr data header and multi block types (header, 1/2, 3/4, 1, UDT) - type 1
if (databurst == 0x06) dmr_dheader (opts, state, DMR_PDU, DMR_PDU_bits, CRCCorrect, IrrecoverableErrors);
if (databurst == 0x08) dmr_block_assembler (opts, state, DMR_PDU, pdu_len, databurst, 1); //3/4 Rate Data
if (databurst == 0x0A) dmr_block_assembler (opts, state, DMR_PDU, pdu_len, databurst, 1); //Full Rate Data
if (databurst == 0x07 && is_udt == 0) dmr_block_assembler (opts, state, DMR_PDU, pdu_len, databurst, 1); //1/2 Rate Data
if (databurst == 0x07 && is_udt == 1) dmr_block_assembler (opts, state, DMR_PDU, pdu_len, databurst, 3); //UDT with 1/2 Rate Encoding
//control signalling types (CSBK, MBC)
if (databurst == 0x03) dmr_cspdu (opts, state, DMR_PDU_bits, DMR_PDU, CRCCorrect, IrrecoverableErrors);
//both MBC header and MBC continuation will go to the block_assembler - type 2, and then to dmr_cspdu
if (databurst == 0x04)
{
state->data_block_counter[slot] = 0; //zero block counter before running header
state->data_header_valid[slot] = 1; //set valid header since we received one
dmr_block_assembler (opts, state, DMR_PDU, pdu_len, databurst, 2);
}
if (databurst == 0x05) dmr_block_assembler (opts, state, DMR_PDU, pdu_len, databurst, 2);
//Unified Single Data Block (USBD) -- Not to be confused with Unified Data Transport (UDT)
if (databurst == 0x0B)
{
//TODO: provide more robust handling at a later date -- ETSI TS 102 361-4 V1.11.1 (2021-01) 6.6.11.3
usbd_st = (uint8_t)ConvertBitIntoBytes(&DMR_PDU_bits[0], 4);
fprintf (stderr, "%s\n", KYEL);
fprintf (stderr, " Unified Single Block Data - ");
if (usbd_st == 0) fprintf (stderr, "Location Information Protocol");
else if (usbd_st > 8) fprintf (stderr, "Manufacturer Specific Service %d ", usbd_st);
else fprintf (stderr, "Reserved %d ", usbd_st);
}
//set the original CRCCorrect back to its original value if the RAS flag was tripped
if (is_ras == 1) CRCCorrect = crc_original_validity;
//start printing relevant fec/crc/ras messages, don't print on idle or MBC continuation blocks (handled in dmr_block.c)
if (IrrecoverableErrors == 0 && CRCCorrect == 1 && databurst != 0x09 && databurst != 0x05) ; //fprintf(stderr, "(CRC OK)");
// if (IrrecoverableErrors == 0 && CRCCorrect == 0 && databurst != 0x09 && databurst != 0x05)
// {
// fprintf (stderr, "%s", KYEL);
// fprintf(stderr, " (FEC OK)");
// fprintf (stderr, "%s", KNRM);
// }
if (IrrecoverableErrors != 0 && databurst != 0x09) //&& databurst != 0x05
{
fprintf (stderr, "%s", KRED);
fprintf(stderr, " (FEC ERR)");
fprintf (stderr, "%s", KNRM);
}
//print whether or not the 'RAS Field' bits are set to indicate RAS enabled (to be verified)
if (is_ras == 1)
{
fprintf (stderr, "%s", KRED);
fprintf (stderr, " -RAS ");
//the value of this field seems to always, or usually, be 4, or just R[2] bit is set
if (opts->payload == 1) fprintf (stderr, "%X ", BPTCReservedBits);
fprintf (stderr, "%s", KNRM);
}
if (IrrecoverableErrors == 0 && CRCCorrect == 0 && is_ras == 0 && databurst != 0x09 && databurst != 0x05)
{
fprintf (stderr, "%s", KRED);
fprintf (stderr, " (CRC ERR) ");
fprintf (stderr, "%s", KNRM);
}
//print the unified PDU format here, if not slot idle
if (opts->payload == 1 && databurst != 0x09)
{
fprintf (stderr, "\n");
fprintf (stderr, "%s", KCYN);
fprintf (stderr, " DMR PDU Payload ");
for (i = 0; i < pdu_len; i++)
{
fprintf (stderr, "[%02X]", DMR_PDU[i]);
}
//debug print
// if (dbsn) fprintf (stderr, " SN %X", dbsn);
// fprintf (stderr, " CRC - EXT %X CMP %X", CRCExtracted, CRCComputed);
fprintf (stderr, "%s", KNRM);
}
}
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