FreeCalypso > hg > fc-tourmaline
view src/nucleus/mb_extr.h @ 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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/*************************************************************************/ /* */ /* Copyright Mentor Graphics Corporation 2002 */ /* All Rights Reserved. */ /* */ /* THIS WORK CONTAINS TRADE SECRET AND PROPRIETARY INFORMATION WHICH IS */ /* THE PROPERTY OF MENTOR GRAPHICS CORPORATION OR ITS LICENSORS AND IS */ /* SUBJECT TO LICENSE TERMS. */ /* */ /*************************************************************************/ /*************************************************************************/ /* */ /* FILE NAME VERSION */ /* */ /* mb_extr.h Nucleus PLUS 1.14 */ /* */ /* COMPONENT */ /* */ /* MB - Mailbox Management */ /* */ /* DESCRIPTION */ /* */ /* This file contains function prototypes of all functions */ /* accessible to other components. */ /* */ /* DATA STRUCTURES */ /* */ /* None */ /* */ /* FUNCTIONS */ /* */ /* None */ /* */ /* DEPENDENCIES */ /* */ /* mb_defs.h Mailbox Management constants */ /* */ /* HISTORY */ /* */ /* DATE REMARKS */ /* */ /* 03-01-1993 Created initial version 1.0 */ /* 04-19-1993 Verified version 1.0 */ /* 03-01-1994 Moved include files outside of */ /* the file #ifndef to allow the */ /* use of actual data structures, */ /* changed the names of several */ /* mailboxes services to reflect */ /* the new file structure, */ /* modified function interface to */ /* exactly match the prototype, */ /* resulting in version 1.1 */ /* */ /* 03-18-1994 Verified version 1.1 */ /* 04-17-1996 updated to version 1.2 */ /* 03-24-1998 Released version 1.3 */ /* 03-26-1999 Released 1.11m (new release */ /* numbering scheme) */ /* 04-17-2002 Released version 1.13m */ /* 11-07-2002 Released version 1.14 */ /*************************************************************************/ #include "mb_defs.h" /* Include MB constants */ /* Check to see if the file has been included already. */ #ifndef MB_EXTR #define MB_EXTR /* Initialization functions. */ VOID MBI_Initialize(VOID); /* Core error checking functions. */ STATUS MBCE_Create_Mailbox(NU_MAILBOX *mailbox_ptr, CHAR *name, OPTION suspend_type); STATUS MBCE_Delete_Mailbox(NU_MAILBOX *mailbox_ptr); STATUS MBCE_Send_To_Mailbox(NU_MAILBOX *mailbox_ptr, VOID *message, UNSIGNED suspend); STATUS MBCE_Receive_From_Mailbox(NU_MAILBOX *mailbox_ptr, VOID *message, UNSIGNED suspend); /* Supplemental error checking functions. */ STATUS MBSE_Reset_Mailbox(NU_MAILBOX *mailbox_ptr); STATUS MBSE_Broadcast_To_Mailbox(NU_MAILBOX *mailbox_ptr, VOID *message, UNSIGNED suspend); /* Core processing functions. */ STATUS MBC_Create_Mailbox(NU_MAILBOX *mailbox_ptr, CHAR *name, OPTION suspend_type); STATUS MBC_Delete_Mailbox(NU_MAILBOX *mailbox_ptr); STATUS MBC_Send_To_Mailbox(NU_MAILBOX *mailbox_ptr, VOID *message, UNSIGNED suspend); STATUS MBC_Receive_From_Mailbox(NU_MAILBOX *mailbox_ptr, VOID *message, UNSIGNED suspend); /* Supplemental mailbox functions. */ STATUS MBS_Reset_Mailbox(NU_MAILBOX *mailbox_ptr); STATUS MBS_Broadcast_To_Mailbox(NU_MAILBOX *mailbox_ptr, VOID *message, UNSIGNED suspend); /* Mailbox fact retrieval functions. */ UNSIGNED MBF_Established_Mailboxes(VOID); STATUS MBF_Mailbox_Information(NU_MAILBOX *mailbox_ptr, CHAR *name, OPTION *suspend_type, DATA_ELEMENT *message_present, UNSIGNED *tasks_waiting, NU_TASK **first_task); UNSIGNED MBF_Mailbox_Pointers(NU_MAILBOX **pointer_list, UNSIGNED maximum_pointers); #endif