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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 35f7a1dc9f7d
children
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;********************************************************************************
;*** File           : tst.mdf
;*** Creation       : Thu Jun 19 15:32:14 CST 2008
;*** XSLT Processor : Apache Software Foundation / http://xml.apache.org/xalan-j / supports XSLT-Ver: 1
;*** Copyright      : (c) Texas Instruments AG, Berlin Germany 2002
;********************************************************************************
;*** Document Type  : Air Interface Message Specification
;*** Document Name  : tst
;*** Document No.   : 8441.603.99.005
;*** Document Date  : 2000-10-23
;*** Document Status: BEING_PROCESSED
;*** Document Author: ANS
;********************************************************************************



PRAGMA 	SRC_FILE_TIME 	"Wed Nov 28 10:21:30 2007"
PRAGMA 	LAST_MODIFIED 	"2000-10-23"
PRAGMA 	ID_AND_VERSION 	"8441.603.99.005"



CONST 	L3MAX 	251 	; maximum size of a L3 buffer
CONST 	MAX_N_PDU_NUMBER_LIST 	11 	; maximum size of N-PDU number list



VALTAB 	VAL_no_of_pdus
VAL 	DEF 	 	"Number of PDUs to transmit"
VAL 	0 	TEST_INFINITIVE_NO 	"ciphering not used"

VALTAB 	VAL_dl_timeslot_offset
VAL 	0 	TEST_TN0 	"downlink timeslot offsett 0"
VAL 	1 	TEST_TN1 	"downlink timeslot offsett 1"
VAL 	2 	TEST_TN2 	"downlink timeslot offsett 2"
VAL 	3 	TEST_TN3 	"downlink timeslot offsett 3"
VAL 	4 	TEST_TN4 	"downlink timeslot offsett 4"
VAL 	5 	TEST_TN5 	"downlink timeslot offsett 5"
VAL 	6 	TEST_TN6 	"downlink timeslot offsett 6"
VAL 	7 	TEST_TN7 	"downlink timeslot offsett 7"

VALTAB 	VAL_mode_flag_val
VAL 	0 	TEST_RANDOM 	"pseudorandom data"
VAL 	1 	TEST_LOOP 	"loop back"




VAR 	msg_type 	"Message Type" 	
 	8


VAR 	no_of_pdus 	"Number of PDUs" 	
 	12

VAL 	@m_tst - VAL_no_of_pdus@ 	

VAR 	dl_timeslot_offset 	"Downlink Timeslot Offset" 	
 	3

VAL 	@m_tst - VAL_dl_timeslot_offset@ 	

VAR 	mode_flag_val 	"Mode Flag Value" 	
 	1

VAL 	@m_tst - VAL_mode_flag_val@ 	




COMP 	pdu_description 	"PDU Description"
{
 	.000  ; spare
 	 	no_of_pdus 	 ; Number
}



COMP 	pdu_description_ie 	"PDU Description IE"
{
 	CSN1_S1  	pdu_description 	 ; PDU Description
}



COMP 	mode_flag 	"Mode Flag"
{
 	.0000  ; spare
 	 	dl_timeslot_offset 	 ; Downlink Timeslot Offset
 	 	mode_flag_val 	 ; Mode Flag Value
}






MSG 	gprs_test_mode_cmd 	downlink 	36 ; gprs_test_mode_cmd
{
 	GSM3_V  	msg_type 	 ; Message Type
 	GSM3_V  	pdu_description_ie 	 ; PDU description
 	GSM3_V  	mode_flag 	 ; Mode Flag
}