FreeCalypso > hg > fc-tourmaline
view src/gpf/ccd/gsm6_tlv.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 : gsm6_tlv.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 : Definition of encoding and decoding functions for GSM6_TLV 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_gsm6tlv_decode | +--------------------------------------------------------------------+ PURPOSE : Decoding of the GSM Type 6TLV element. This element consists of a 8 bit T component a 16 Bit L component and a V component wich length depends on the value of the L component. */ SHORT cdc_gsm6tlv_decode (const ULONG c_ref, const ULONG e_ref, T_CCD_Globs *globs) { T_TLV_SORT tlv_inf; tlv_inf.gotTag = TRUE; tlv_inf.gotLen = TRUE; #ifdef DEBUG_CCD #ifndef CCD_SYMBOLS TRACE_CCD (globs, "cdc_gsm6tlv_decode()"); #else TRACE_CCD (globs, "cdc_gsm6tlv_decode() %s", ccddata_get_alias((USHORT) e_ref, 1)); #endif #endif return cdc_tlv_decode (c_ref, e_ref, &tlv_inf, globs); } #endif /* !RUN_INT_RAM */ #ifndef RUN_INT_RAM /* +--------------------------------------------------------------------+ | PROJECT : CCD (6144) MODULE : CDC_GSM | | STATE : code ROUTINE : cdc_gsm6tlv_encode | +--------------------------------------------------------------------+ PURPOSE : Encoding of the GSM Type 6TLV element. This element consists of a 8 bit T component a 16 Bit L component and a V component wich length depends on the value of the L component. */ SHORT cdc_gsm6tlv_encode (const ULONG c_ref, const ULONG e_ref, T_CCD_Globs *globs) { #ifdef DEBUG_CCD #ifndef CCD_SYMBOLS TRACE_CCD (globs, "cdc_gsm6tlv_encode()"); #else TRACE_CCD (globs, "cdc_gsm6tlv_encode() %s", ccddata_get_alias((USHORT) e_ref, 1)); #endif #endif cdc_tlv_encode (e_ref, 8, 16, globs); return 1; } #endif /* !RUN_INT_RAM */