FreeCalypso > hg > fc-tourmaline
view src/cs/layer1/gtt_include/l1gtt_defty.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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/************* Revision Controle System Header ************* * GSM Layer 1 software * L1GTT_DEFTY.H * * Filename l1gtt_defty.h * Copyright 2003 (C) Texas Instruments * ************* Revision Controle System Header *************/ #ifndef _L1GTT_DEFTY_H_ #define _L1GTT_DEFTY_H_ #if (L1_GTT == 1) // GTT L1A/L1S COM structure //--------------------------- typedef struct { BOOL start; BOOL stop; } T_GTT_COMMAND; typedef struct { UWORD8 scen_enable; UWORD16 rate; } T_GTT_TEST; typedef struct { T_GTT_TEST test; T_GTT_COMMAND command; } T_GTT_TASK; // FIFO structure //---------------- #if (CODE_VERSION == SIMULATION) // DSP address do not exist --> 32-bit addresses typedef struct { API *ptr_read; //API pointer to current data to read API *ptr_write; //API pointer to free area to write to API *buffer_start; //pointer to start UWORD16 buffer_length; //length of buffer } T_TTY_FIFO_struct; #else typedef struct { API ptr_read; //API pointer to current data to read API ptr_write; //API pointer to free area to write to API buffer_start; //pointer to start API buffer_length; //length of buffer } T_TTY_FIFO_struct; #endif // GTT test data //-------------- typedef struct { UWORD16 scen_index; UWORD16 scen_length; char *scen_ptr; UWORD8 chars_to_push; UWORD16 frame_count; } T_GTT_TEST_L1S; #endif #endif //_L1GTT_DEFTY_H_
