annotate src/cs/services/tty/tty_api.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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4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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1 /**
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2 * @file tty_api.h
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3 *
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4 * API Definition for TTY SWE.
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5 *
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6 * @author Frederic Turgis (f-turgis@ti.com) & Gerard Cauvy (g-cauvy@ti.com)
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7 * @version 0.1
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8 */
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4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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10 /*
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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11 * History:
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12 *
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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13 * Date Modification
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14 * ------------------------------------
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15 * 01/27/2003 Create
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16 *
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17 * (C) Copyright 2003 by Texas Instruments Incorporated, All Rights Reserved
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18 */
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19
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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20 #ifndef __TTY_API_H_
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21 #define __TTY_API_H_
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23 #include "rvm/rvm_gen.h" /* Generic RVM types and functions. */
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25 /* TTY entity (Background Task) is highly linked to the Audio entity. */
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26 #include "audio/audio_api.h"
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28 #ifdef __cplusplus
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29 extern "C"
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30 {
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31 #endif
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32
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33 typedef struct
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34 {
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35 UINT8 Mode;
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36 UINT16 ThresholdRead;
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37 UINT16 ThreshHoldWrite;
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38 }
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39 T_AUDIO_TTY_CONFIG_PARAMETER;
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40
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41 #define TTY_STOP (0)
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42 #define TTY_EXT_START (1)
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44 T_AUDIO_RET audio_tty_set_config (T_AUDIO_TTY_CONFIG_PARAMETER *parameter,
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45 T_RV_RETURN *return_path);
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47 #define AUDIO_TTY_STATUS_MSG (0x00F2 | AUDIO_EVENT_EXTERN | AUDIO_EVENTS_MASK)
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4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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49 typedef struct
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50 {
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51 T_RV_HDR os_hdr;
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52 INT8 status;
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53 }
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54 T_AUDIO_TTY_STATUS;
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4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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56 #ifdef __cplusplus
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57 }
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58 #endif
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61 #endif /*__TTY_API_H_*/
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