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!

/*
 *        Filename l1audio_abb.h
 *  Copyright 2003 (C) Texas Instruments  
 *
 *
 */

#define ABB_L1_WRITE(addr,data) (((data) << 6) | (addr) | 0x01)

void ABB_CAL_UlVolume     (UWORD8 pga_index);
void ABB_CAL_DlVolume     (UWORD8 volume_index, UWORD8 pga_index);
void ABB_UlVolume         (UWORD8 volume_index);
void ABB_DlVolume         (UWORD8 volume_index);
void ABB_DlMute           (BOOL mute);
void ABB_SideTone         (UWORD8 volume_index);
void ABB_Audio_Config     (UWORD16 data);
void ABB_Audio_Config_2   (UWORD16 data); 
void ABB_UlMute           (BOOL mute);
void ABB_Audio_Control    (UWORD16 data);
void ABB_Audio_On_Off     (UWORD16 data);
void ABB_Audio_Volume     (UWORD16 data);
void ABB_Audio_PLL        (UWORD16 data);
void ABB_Audio_VBPop      (UWORD16 data);
void ABB_Audio_Delay_Init (UWORD8 delay);