FreeCalypso > hg > fc-tourmaline
view src/gpf/ccd/ccd_elem.c @ 275:79cfefc1e2b4
audio mode load: gracefully handle mode files of wrong AEC version
Unfortunately our change of enabling L1_NEW_AEC (which is necessary
in order to bring our Calypso ARM fw into match with the underlying
DSP reality) brings along a change in the audio mode file binary
format and file size - all those new tunable AEC parameters do need
to be stored somewhere, after all. But we already have existing
mode files in the old format, and setting AEC config to garbage when
loading old audio modes (which is what would happen without the
present change) is not an appealing proposition.
The solution implemented in the present change is as follows: the
audio mode loading code checks the file size, and if it differs
from the active version of T_AUDIO_MODE, the T_AUDIO_AEC_CFG structure
is cleared - set to the default (disabled AEC) for the compiled type
of AEC. We got lucky in that this varying T_AUDIO_AEC_CFG structure
sits at the end of T_AUDIO_MODE!
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Fri, 30 Jul 2021 02:55:48 +0000 |
parents | 4e78acac3d88 |
children |
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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 */