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view src/gpf3/ccd/ccd_elem.c @ 88:46d9d68a3911
top Makefile: support building flash images for the C139
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Sun, 02 Oct 2016 14:11:29 +0000 |
parents | c41a534f33c6 |
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/* +----------------------------------------------------------------------------- | Project : | Modul : ccd_elem.c +----------------------------------------------------------------------------- | Copyright 2002 Texas Instruments Berlin, AG | 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 : Condat Conder Decoder - | Definition of encoding and decoding functions of | information elements of air interface messages +----------------------------------------------------------------------------- */ #define CCD_ELEM_C #include <stdio.h> #include <string.h> #include "typedefs.h" #include "ccd_globs.h" #include "ccd.h" #include "ccdtable.h" #include "ccddata.h" #include "ccdapi.h" #include "bitfun.h" #ifndef RUN_INT_RAM /* +--------------------------------------------------------------------+ | PROJECT : CCD (6144) MODULE : ccd_elem | | STATE : code ROUTINE : ccd_decodeElem | +--------------------------------------------------------------------+ PARAMETERS: ULONG ccdid - Enumeration of the information element to be decoded in the file ccdid.h. This number is also the reference number of the IE in the melem table. USHORT l_buf - Number of bits in the encoded IE. USHORT o_buf - Offset of the bitstream buffer in bits. U8 *buf - Bitstream buffer of the encoded IE. U8 *eStruct - reference to the C-Structure containing the C-Representation of the decoded IE. PURPOSE: decodes a bitstream containing an encoded information element. The results are written to a corresponding C-Structure, the C-Representation of the IE. */ int CCDDATA_PREF(ccd_decodeElem) (ULONG ccdid, USHORT l_buf, USHORT o_buf, UCHAR* buf, UCHAR* eStruct) { int jmp_ret; USHORT mcompRef; T_CCD_Globs *globs; T_CCD_ERR_LIST_HEAD* eentry; T_CCD_STORE_LIST* stoentry; globs = ccd_GetGlobVars (&eentry, &stoentry); #ifdef DEBUG_CCD ccd_dump_msg(l_buf, o_buf, buf, globs); #endif /* * setup the structure-buffer. */ globs->pstruct = eStruct; globs->pstructOffs = 0; ccd_common_decode_init(l_buf, o_buf, buf, globs); ccd_err_reset (eentry); globs->ccd_recurs_level =1; if ((mcompRef = melem[ccdid].elemRef) EQ NO_REF) { ccd_recordFault (globs, ERR_INVALID_CCDID, BREAK, ccdid, NULL); ccd_FreeGlobVars (globs); ccd_err_free (eentry); return (BYTE)globs->CCD_Error; } #ifdef DEBUG_CCD #ifdef CCD_SYMBOLS TRACE_CCD (globs, "CCD decode: Element = %s", mcomp[mcompRef].name); #else TRACE_CCD (globs, "CCD decode: CCD_Id = %x", ccdid); #endif #endif #ifdef ERR_TRC_STK_CCD /* save the value for tracing in error case */ globs->error_stack[0] = mcompRef; #endif /* ERR_TRC_STK_CCD */ /* * Clean up the entite C-structure before decoding. * Do not overwrite the MsgId (1. Byte) */ #ifdef DEBUG_CCD TRACE_CCD (globs, "CCD Cleaning struct %ld bytes", mcomp[mcompRef].cSize); #endif memset ((UBYTE *) globs->pstruct, 0, (size_t)(mcomp[mcompRef].cSize)); /* * clear the UPN stack */ globs->SP=0; globs->StackOvfl=FALSE; globs->KeepReg[0] = 0; /* * inform the GSM-CODEC about the begin of a new message */ cdc_GSM_start (globs); jmp_ret = setjmp (globs->jmp_mark); if (jmp_ret EQ 0) { globs->jmp_mark_set = TRUE; ccd_decodeComposition ((ULONG) mcompRef, globs); } #ifdef DEBUG_CCD TRACE_CCD (globs, "CCD-ERROR = %d", globs->CCD_Error); TRACE_CCD (globs, "-------------------------------------------------"); #endif /* DEBUG_CCD */ ccd_FreeGlobVars (globs); ccd_err_free (eentry); return (BYTE) globs->CCD_Error; } #endif /* !RUN_INT_RAM */ #ifndef RUN_INT_RAM /* +--------------------------------------------------------------------+ | PROJECT : CCD (6144) MODULE : ccd_elem | | STATE : code ROUTINE : ccd_encodeElem | +--------------------------------------------------------------------+ PARAMETERS: ULONG ccdid - Enumeration of the information element to be encoded in the file ccdid.h. This number is also the reference number of the IE in the melem table USHORT l_buf - Number of bits in the encoded IE. USHORT o_buf - Offset of the bitstream buffer in bits. U8 *buf - Bitstream buffer of the encoded IE. UBYTE * eStruct - reference to the C-Structure containing the C-Representation of the decoded IE. PURPOSE: encodes a C-Structure containing the C-Representation of an information element to a bitstream. */ int CCDDATA_PREF(ccd_encodeElem) (ULONG ccdid, USHORT* l_buf, USHORT o_buf, UCHAR* buf, UCHAR* eStruct) { int jmp_ret; USHORT maxBytes, mcompRef; T_CCD_Globs *globs; T_CCD_ERR_LIST_HEAD* eentry; T_CCD_STORE_LIST* stoentry; globs = ccd_GetGlobVars (&eentry, &stoentry); ccd_err_reset (eentry); #ifdef DEBUG_CCD { /* to avoid the vsprintf if the traces won't appear anyhow */ ULONG mask; if (vsi_gettracemask (globs->me, globs->me, &mask) != VSI_ERROR) { globs->TraceIt = mask & TC_CCD; } } #endif /* * Set a sign that no call to setjmp() is done. So ccd_setError * performs no longjmp in case of an error. */ globs->jmp_mark_set = FALSE; /* Setup the bitbuffer. */ globs->bitbuf = buf; globs->bitpos = 0; /* Setup the structure-buffer. */ globs->pstruct = eStruct; globs->pstructOffs = 0; /* Cleanup the read-caches. */ globs->lastbytepos16 = globs->lastbytepos32 = 0xffff; /* Setup the bitoffset. */ globs->bitoffs = o_buf; bf_incBitpos (o_buf, globs); globs->bitbuf[globs->bytepos] = 0; globs->CCD_Error = ccdOK; globs->ccd_recurs_level =1; if ((mcompRef = melem[ccdid].elemRef) EQ NO_REF) { ccd_recordFault (globs, ERR_INVALID_CCDID, BREAK, ccdid, NULL); ccd_FreeGlobVars (globs); ccd_err_free (eentry); return (BYTE)globs->CCD_Error; } #ifdef DEBUG_CCD #ifdef CCD_SYMBOLS TRACE_CCD (globs, "CCD encode: Element = %s", mcomp[mcompRef].name); #else TRACE_CCD (globs, "CCD encode: CCD_Id = %x", ccdid); #endif #endif #ifdef ERR_TRC_STK_CCD /* Save the value for tracing in error case. */ globs->error_stack[0] = mcompRef; #endif maxBytes = (USHORT) (mcomp[mcompRef].bSize+7)>>3; #ifdef DEBUG_CCD TRACE_CCD (globs, "-------------------------------------------------"); TRACE_CCD (globs, "CCD: Code Elem"); TRACE_CCD (globs, "Cleaning %d bits (%d bytes) of the bitstream", mcomp[mcompRef].bSize, maxBytes); #endif /* * Clean up the bit buffer for the encoded message before encoding. */ memset ((U8 *) &buf[o_buf>>3], 0, (size_t) maxBytes); /* Store the length of ereased buffer to support error handling. */ globs->buflen = (USHORT) mcomp[mcompRef].bSize; /* * Clear the UPN stack. */ globs->SP=0; globs->StackOvfl=FALSE; globs->KeepReg[0] = 0; /* * Inform the GSM-CODEC about the begin of a new message. */ cdc_GSM_start (globs); jmp_ret = setjmp (globs->jmp_mark); if (jmp_ret EQ 0) { globs->jmp_mark_set = TRUE; ccd_encodeComposition ((ULONG) mcompRef, globs); } *l_buf = (USHORT)(globs->bitpos - globs->bitoffs); #ifdef DEBUG_CCD { int i, j, buflen; char s[64], c[4]; buflen = (*l_buf + o_buf + 7) >> 3; TRACE_CCD (globs, "-------------------------------------------------"); TRACE_CCD (globs, " After ENCODING: lbuf= %d, obuf= %d", *l_buf, o_buf); TRACE_CCD (globs, " Hex dump of encoded message:"); s[0] = '\0'; for (i = o_buf >> 3; i < buflen; i+=16) { for (j = 0; j < 16; j++) { if ((i+j) < buflen) { sprintf(c, " %02x", buf[i+j]); strcat (s, c); } } TRACE_CCD (globs, "%s", s); s[0] = '\0'; } } #endif #ifdef DEBUG_CCD TRACE_CCD (globs, "CCD-ERROR = %d", globs->CCD_Error); TRACE_CCD (globs, "-------------------------------------------------"); #endif /* DEBUG_CCD */ ccd_FreeGlobVars (globs); ccd_err_free (eentry); return (BYTE) globs->CCD_Error; } #endif /* !RUN_INT_RAM */