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Refactor LDPC API to make common API with various implementations

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This commit is contained in:
Laurent THOMAS
2023-11-28 09:37:37 +01:00
committed by Raymond Knopp
parent e945b260f8
commit 99ca87a1c1
22 changed files with 622 additions and 1299 deletions
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openair1/PHY/CODING/nrLDPC_decoder/nrLDPC_decoder.c
+50 -30
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@@ -133,14 +133,24 @@
#include "bnProc128/nrLDPC_bnProc_BG2_R23_128.h"
#endif
//#define NR_LDPC_ENABLE_PARITY_CHECK
//#define NR_LDPC_PROFILER_DETAIL(a) a
#define NR_LDPC_PROFILER_DETAIL(a)
#include "openair1/PHY/CODING/nrLDPC_extern.h"
#ifdef NR_LDPC_DEBUG_MODE
#include "nrLDPC_tools/nrLDPC_debug.h"
#endif
// decoder interface
/**
\brief LDPC decoder API type definition
\param p_decParams LDPC decoder parameters
\param p_llr Input LLRs
\param p_llrOut Output vector
\param p_profiler LDPC profiler statistics
*/
static inline uint32_t nrLDPC_decoder_core(int8_t* p_llr,
int8_t* p_out,
uint32_t numLLR,
@@ -148,13 +158,25 @@ static inline uint32_t nrLDPC_decoder_core(int8_t* p_llr,
t_nrLDPC_dec_params* p_decParams,
t_nrLDPC_time_stats* p_profiler,
decode_abort_t* ab);
void nrLDPC_initcall(t_nrLDPC_dec_params* p_decParams, int8_t* p_llr, int8_t* p_out) {
int32_t LDPCinit()
{
return 0;
}
int32_t nrLDPC_decod(t_nrLDPC_dec_params* p_decParams,
int8_t* p_llr,
int8_t* p_out,
t_nrLDPC_time_stats* p_profiler,
decode_abort_t* ab)
int32_t LDPCshutdown()
{
return 0;
}
int32_t LDPCdecoder(t_nrLDPC_dec_params* p_decParams,
uint8_t harq_pid,
uint8_t ulsch_id,
uint8_t C,
int8_t* p_llr,
int8_t* p_out,
t_nrLDPC_time_stats* p_profiler,
decode_abort_t* ab)
{
uint32_t numLLR;
t_nrLDPC_lut lut;
@@ -817,31 +839,30 @@ static inline uint32_t nrLDPC_decoder_core(int8_t* p_llr,
#endif
// Parity Check
#ifdef NR_LDPC_ENABLE_PARITY_CHECK
NR_LDPC_PROFILER_DETAIL(start_meas(&p_profiler->cnProcPc));
if (BG == 1)
pcRes = nrLDPC_cnProcPc_BG1(p_lut, cnProcBuf, cnProcBufRes, Z);
else
pcRes = nrLDPC_cnProcPc_BG2(p_lut, cnProcBuf, cnProcBufRes, Z);
NR_LDPC_PROFILER_DETAIL(stop_meas(&p_profiler->cnProcPc));
#else
if (numIter > 2) {
int8_t llrOut[NR_LDPC_MAX_NUM_LLR] __attribute__((aligned(64))) = {0};
int8_t* p_llrOut = outMode == nrLDPC_outMode_LLRINT8 ? p_out : llrOut;
nrLDPC_llrRes2llrOut(p_lut, p_llrOut, llrRes, Z, BG);
if (outMode == nrLDPC_outMode_BIT)
nrLDPC_llr2bitPacked(p_out, p_llrOut, numLLR);
else // if (outMode == nrLDPC_outMode_BITINT8)
nrLDPC_llr2bit(p_out, p_llrOut, numLLR);
if (check_crc((uint8_t*)p_out, p_decParams->block_length, p_decParams->crc_type)) {
LOG_D(PHY, "Segment CRC OK, exiting LDPC decoder\n");
break;
if (!p_decParams->check_crc) {
NR_LDPC_PROFILER_DETAIL(start_meas(&p_profiler->cnProcPc));
if (BG == 1)
pcRes = nrLDPC_cnProcPc_BG1(p_lut, cnProcBuf, cnProcBufRes, Z);
else
pcRes = nrLDPC_cnProcPc_BG2(p_lut, cnProcBuf, cnProcBufRes, Z);
NR_LDPC_PROFILER_DETAIL(stop_meas(&p_profiler->cnProcPc));
} else {
if (numIter > 2) {
int8_t llrOut[NR_LDPC_MAX_NUM_LLR] __attribute__((aligned(64))) = {0};
int8_t* p_llrOut = outMode == nrLDPC_outMode_LLRINT8 ? p_out : llrOut;
nrLDPC_llrRes2llrOut(p_lut, p_llrOut, llrRes, Z, BG);
if (outMode == nrLDPC_outMode_BIT)
nrLDPC_llr2bitPacked(p_out, p_llrOut, numLLR);
else // if (outMode == nrLDPC_outMode_BITINT8)
nrLDPC_llr2bit(p_out, p_llrOut, numLLR);
if (p_decParams->check_crc((uint8_t*)p_out, p_decParams->E, p_decParams->crc_type)) {
LOG_D(PHY, "Segment CRC OK, exiting LDPC decoder\n");
break;
}
}
}
#endif
}
#ifdef NR_LDPC_ENABLE_PARITY_CHECK
{
if (!p_decParams->check_crc) {
int8_t llrOut[NR_LDPC_MAX_NUM_LLR] __attribute__((aligned(64))) = {0};
int8_t* p_llrOut = outMode == nrLDPC_outMode_LLRINT8 ? p_out : llrOut;
// Assign results from processing buffer to output
@@ -856,7 +877,6 @@ static inline uint32_t nrLDPC_decoder_core(int8_t* p_llr,
nrLDPC_llr2bit(p_out, p_llrOut, numLLR);
NR_LDPC_PROFILER_DETAIL(stop_meas(&p_profiler->llr2bit));
}
#endif
return numIter;
}