FreeCalypso > hg > fc-magnetite
diff src/gpf3/ccd/hl_flag.c @ 2:c41a534f33c6
src/gpf3: preened GPF goo from TCS3.2
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Sun, 25 Sep 2016 23:52:50 +0000 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/gpf3/ccd/hl_flag.c Sun Sep 25 23:52:50 2016 +0000 @@ -0,0 +1,345 @@ +/* ++----------------------------------------------------------------------------- +| Project : +| Modul : hl_flag.c ++----------------------------------------------------------------------------- +| Copyright 2002 Texas Instruments Inc. +| All rights reserved. +| +| This file is confidential and a trade secret of Texas +| Instruments Berlin, AG +| The receipt of or possession of this file does not convey +| any rights to reproduce or disclose its contents or to +| manufacture, use, or sell anything it may describe, in +| whole, or in part, without the specific written consent of +| Texas Instruments Berlin, AG. ++----------------------------------------------------------------------------- +| Purpose : Definition of encoding and decoding functions for HL_FLAG elements ++----------------------------------------------------------------------------- +*/ + + +/* + * standard definitions like GLOBAL, UCHAR, ERROR etc. + */ +#include "typedefs.h" +#include "header.h" + +/* + * Prototypes of ccd (USE_DRIVER EQ undef) for prototypes only + * look at ccdapi.h + */ +#undef USE_DRIVER +#include "ccdapi.h" + +/* + * Types and functions for bit access and manipulation + */ +#include "ccd_globs.h" +#include "bitfun.h" + +/* + * Prototypes of ccd internal functions + */ +#include "ccd.h" + +/* + * Declaration of coder/decoder tables + */ +#include "ccdtable.h" +#include "ccddata.h" + + +#ifndef RUN_INT_RAM +/* ++--------------------------------------------------------------------+ +| PROJECT : CCD (6144) MODULE : CDC_GSM | +| STATE : code ROUTINE : cdc_hl_flag_decode | ++--------------------------------------------------------------------+ + + PURPOSE : Decoding of the GSM Type HL_FLAG element. This element + consists of a single bit only. The decoded value will be 0 + if the encoded value is L respectively 1 if the encoded + value is H. + +*/ + +SHORT cdc_hl_flag_decode (const ULONG c_ref, const ULONG e_ref, T_CCD_Globs *globs) +{ + ULONG repeat, max_rep; + BOOL is_variable = FALSE; + ULONG cix_ref, num_prolog_steps, prolog_step_ref; + +#ifdef DEBUG_CCD + #ifndef CCD_SYMBOLS + TRACE_CCD (globs, "cdc_hl_flag_decode()"); + #else + TRACE_CCD (globs, "cdc_hl_flag_decode() %s", ccddata_get_alias((USHORT) e_ref, 1)); + #endif +#endif + + globs->SeekTLVExt = FALSE; + cix_ref = melem[e_ref].calcIdxRef; + num_prolog_steps = calcidx[cix_ref].numPrologSteps; + prolog_step_ref = calcidx[cix_ref].prologStepRef; + repeat = 1; + + if (cix_ref != 0) + { + /* + * if this element is conditional, check the condition + */ + if (calcidx[cix_ref].numCondCalcs NEQ 0 + AND ! ccd_conditionOK (e_ref, globs)) + return 1; + + /* + * if this element have a defined Prolog + * we have to process it before decoding the bitstream + */ + if (num_prolog_steps) + { + ccd_performOperations (num_prolog_steps, prolog_step_ref, globs); + } + if (melem[e_ref].repType NEQ ' ') + { + is_variable = ccd_calculateRep (e_ref, &repeat, &max_rep, globs); + } + } + /* + * Element is not a SPARE. Setup the struct pointer + */ + globs->pstructOffs = melem[e_ref].structOffs; + + + if (melem[e_ref].optional) + { + /* + * for optional elements we must set the valid-flag + * ??. + * Therefore we store the address of the valid flag. + */ + *(globs->pstruct + globs->pstructOffs++) = TRUE; + + } + + globs->pstruct[globs->pstructOffs++] = (UBYTE) (bf_readBit(globs) == GET_HL_PREV(1)); +#ifdef DEBUG_CCD +#ifdef CCD_SYMBOLS + TRACE_CCD (globs, "decoding var %s",ccddata_get_alias((USHORT) e_ref, 1)); +#else + TRACE_CCD (globs, "decoding var %d", melem[e_ref].elemRef); +#endif +#endif + + return 1; +} +#endif /* !RUN_INT_RAM */ + +#ifndef RUN_INT_RAM +/* ++--------------------------------------------------------------------+ +| PROJECT : CCD (6144) MODULE : CDC_GSM | +| STATE : code ROUTINE : cdc_hl_flag_encode | ++--------------------------------------------------------------------+ + + PURPOSE : Encoding of the GSM Type HL_FLAG element. This element + consists of a single bit only. If the element is set to 1 + a H bit will be coded. Otherwise a L bit will be coded if + the element value to encode is set to 0. + +*/ + +SHORT cdc_hl_flag_encode (const ULONG c_ref, const ULONG e_ref, T_CCD_Globs *globs) +{ + ULONG repeat=1, amount=1; + USHORT cSize = 0, startOffset; + ULONG i; + ULONG cix_ref, num_prolog_steps, prolog_step_ref; + +#ifdef DEBUG_CCD + #ifndef CCD_SYMBOLS + TRACE_CCD (globs, "cdc_hl_flag_encode()"); + #else + TRACE_CCD (globs, "cdc_hl_flag_encode() %s", ccddata_get_alias((USHORT) e_ref, 1)); + #endif +#endif + + cix_ref = melem[e_ref].calcIdxRef; + num_prolog_steps = calcidx[cix_ref].numPrologSteps; + prolog_step_ref = calcidx[cix_ref].prologStepRef; + + if (cix_ref != 0) + { + /* + * if this element is conditional, check the condition + */ + if (calcidx[cix_ref].numCondCalcs NEQ 0 + AND ! ccd_conditionOK (e_ref, globs)) + return 1; + + /* + * if this element have a defined Prolog + * we have to process it before decoding the bitstream + */ + if (num_prolog_steps) + { + ccd_performOperations (num_prolog_steps, prolog_step_ref, globs); + } + } + + if (melem[e_ref].elemType NEQ 'S') + { + /* + * Element is not a SPARE. + * Setup the offset into the C-structure for this element + */ + globs->pstructOffs = melem[e_ref].structOffs; + + if (melem[e_ref].optional) + { + /* + * for optional elements check the valid-flag in the C-struct. + * Spare elements does not have a corresponding valid flag. + */ + if (globs->pstruct[globs->pstructOffs++] == FALSE) + { + /* + * element is invalid so we must code a 0 bit + */ + bf_writeBit (GET_HL(0), globs); + + return 1; + } + + else + { +#ifdef DEBUG_CCD + if (globs->pstruct [melem[e_ref].structOffs] != TRUE) + { + TRACE_CCD (globs, "Ambiguous value for valid flag!\n...assumed 1 for ccdID=%d", + e_ref); + } +#endif + /* + * element is valid so we must code a 1 bit + */ + bf_writeBit (GET_HL(1), globs); + } + } + + if (melem[e_ref].repType NEQ ' ') + { + /* As a default amount =1 due to initialization. */ + if (melem[e_ref].repType EQ 'i') + { + /* + * for variable repeatable elements read the amount + * of repeats out of the C-Structure (c_xxx). + * If the number of repeats given by the C-Structure + * exceeds the allowed value CCD gives a warning! + */ + if (melem[e_ref].maxRepeat > 255) + { + ULONG count = (ULONG) (* (USHORT *)(globs->pstruct + globs->pstructOffs++)); + repeat = MINIMUM (count, (ULONG) melem[e_ref].maxRepeat); + if (repeat < count) + ccd_recordFault (globs, ERR_MAX_REPEAT, CONTINUE, + (USHORT) e_ref, globs->pstruct + globs->pstructOffs); + } + else + { + repeat = (ULONG) MINIMUM (globs->pstruct[globs->pstructOffs], + melem[e_ref].maxRepeat); + if ( repeat < (ULONG)(globs->pstruct[globs->pstructOffs]) ) + ccd_recordFault (globs, ERR_MAX_REPEAT, CONTINUE, + (USHORT) e_ref, globs->pstruct + globs->pstructOffs); + } + globs->pstructOffs++; + } + else + if (melem[e_ref].repType EQ 'v') + { + /* + * for variable repeatable elements read the amount + * of repeats out of the C-Structure (c_xxx). + * If the number of repetitions given by the C-Structure + * exceeds the allowed value (maxRepeat) CCD gives a warning! + */ + if (melem[e_ref].maxRepeat > 255) + { + ULONG count = (ULONG) (* (USHORT *)(globs->pstruct + globs->pstructOffs++)); + amount = MINIMUM (count, (ULONG) melem[e_ref].maxRepeat); + if (amount < count) + ccd_recordFault (globs, ERR_MAX_REPEAT, CONTINUE, + (USHORT) e_ref, globs->pstruct + globs->pstructOffs); + } + else + { + amount = (ULONG) MINIMUM (globs->pstruct[globs->pstructOffs], + melem[e_ref].maxRepeat); + if ( amount < (ULONG) (globs->pstruct[globs->pstructOffs]) ) + ccd_recordFault (globs, ERR_MAX_REPEAT, CONTINUE, + (USHORT) e_ref, globs->pstruct + globs->pstructOffs); + } + globs->pstructOffs++; + } + else + if (melem[e_ref].repType EQ 'c') + { + amount = (ULONG) melem[e_ref].maxRepeat; + } + + if (melem[e_ref].repType EQ 'v' OR melem[e_ref].repType EQ 'i') + { + cSize = (USHORT)(((melem[e_ref].elemType EQ 'V') + ? mvar[melem[e_ref].elemRef].cSize + : mcomp[melem[e_ref].elemRef].cSize + )); + startOffset = (USHORT) globs->pstructOffs; + } + } + + for (i=0; i < repeat; i++) + { + if (cSize) + { + /* + * calculate the offset if it is an array + */ + globs->pstructOffs = (USHORT)(startOffset + (i * cSize)); + } + /* + * encode the value + */ + if (globs->pstruct[globs->pstructOffs++] EQ FALSE) + { + /* + * element is 0 so we must signalize L + */ + bf_writeBit (GET_HL(0), globs); + } + else + { + /* + * element is 1 so we must signalize H + */ + bf_writeBit (GET_HL(1), globs); + } + + globs->pstructOffs += mvar[melem[e_ref].elemRef].cSize; + } + + if (melem[e_ref].repType EQ 'i') + { + /* + * for variable CNS1 fields we code a 0 flag to mark the end of the + * arrays + */ + bf_writeBit (GET_HL(0), globs); + } + } + + return 1; +} +#endif /* !RUN_INT_RAM */