FreeCalypso > hg > fc-tourmaline
view cdg-hybrid/sap/dti.pdf @ 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 | 35f7a1dc9f7d |
children |
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;******************************************************************************** ;*** File : dti.pdf ;*** Creation : Wed Mar 11 09:57:58 CST 2009 ;*** 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 : Service Access Point Specification ;*** Document Name : dti ;*** Document No. : 8411.110.00.007 ;*** Document Date : 2000-06-29 ;*** Document Status: BEING_PROCESSED ;*** Document Author: MG ;******************************************************************************** PRAGMA SRC_FILE_TIME "Thu Nov 29 09:40:22 2007" PRAGMA LAST_MODIFIED "2000-06-29" PRAGMA ID_AND_VERSION "8411.110.00.007" VALTAB VAL_c_id VAL 0 DTI_NSAPI_0 "escape mechanism for future extensions" VAL 1 DTI_NSAPI_1 "Point-To-Multipoint Multicast information" VAL 2 DTI_NSAPI_2 "reserved for future use" VAL 3 DTI_NSAPI_3 "reserved for future use" VAL 4 DTI_NSAPI_4 "reserved for future use" VAL 5 DTI_NSAPI_5 "dynamically allocated NSAPI value" VAL 6 DTI_NSAPI_6 "dynamically allocated NSAPI value" VAL 7 DTI_NSAPI_7 "dynamically allocated NSAPI value" VAL 8 DTI_NSAPI_8 "dynamically allocated NSAPI value" VAL 9 DTI_NSAPI_9 "dynamically allocated NSAPI value" VAL 10 DTI_NSAPI_10 "dynamically allocated NSAPI value" VAL 11 DTI_NSAPI_11 "dynamically allocated NSAPI value" VAL 12 DTI_NSAPI_12 "dynamically allocated NSAPI value" VAL 13 DTI_NSAPI_13 "dynamically allocated NSAPI value" VAL 14 DTI_NSAPI_14 "dynamically allocated NSAPI value" VAL 15 DTI_NSAPI_15 "dynamically allocated NSAPI value" VAL 5 DTI_C_ID_DEFAULT "Default value for c_id" VALTAB VAL_p_id VAL 0x21 DTI_PID_IP "simple ip packet" VAL 0x2D DTI_PID_CTCP "Van Jacobson compressed TCP/IP header" VAL 0x2F DTI_PID_UTCP "Van Jacobson uncompressed TCP/IP header" VAL 0x00 DTI_PID_FRAME "PPP frame" VALTAB VAL_op_ack VAL 0x01 OP_ACK "acknowledged operation mode" VAL 0x00 OP_UNACK "unacknowledged operation mode" VALTAB VAL_st_flow VAL 0 DTI_FLOW_ON "flow control is inactive" VAL 1 DTI_FLOW_OFF "flow control is active" VALTAB VAL_st_line_sa VAL 0 DTI_SA_ON "SA is inactive" VAL 1 DTI_SA_OFF "SA is active" VALTAB VAL_st_line_sb VAL 0 DTI_SB_ON "SB is inactive" VAL 1 DTI_SB_OFF "SB is active" VALTAB VAL_st_escape VAL 0 DTI_ESC_OFF "No escape detected" VAL 1 DTI_ESC_ON "Escape detected" VAR list_len "length in octets of whole data" S VAR first "pointer to first generic data descriptor" L VAR next "next generic data descriptor" L VAR len "length of content in octets" S VAR buffer "buffer content" B VAR tui "transmission unit identifier" S VAR c_id "channel identifier" B VAL @p_dti - VAL_c_id@ VAR p_id "protocol identifier" B VAL @p_dti - VAL_p_id@ VAR op_ack "operation mode" B VAL @p_dti - VAL_op_ack@ VAR st_flow "flow control state" B VAL @p_dti - VAL_st_flow@ VAR st_line_sa "line state sa" B VAL @p_dti - VAL_st_line_sa@ VAR st_line_sb "line state sb" B VAL @p_dti - VAL_st_line_sb@ VAR st_escape "escape state" B VAL @p_dti - VAL_st_escape@ VAR l_buf "length of content in bit" S VAR o_buf "offset of content in bit" S VAR buf "test data" B COMP desc_list "list of generic data descriptors" { list_len ; length in octets of whole data first ; pointer to first generic data descriptor } COMP desc "generic data descriptor" { next ; next generic data descriptor len ; length of content in octets buffer [1] ; buffer content } COMP sdu "test data" { l_buf ; length of content in bit o_buf ; offset of content in bit buf [1] ; test data } ; DTI_READY_IND 0x7700 ; DTI_GETDATA_REQ 0x3700 ; DTI_DATA_REQ 0x3701 ; DTI_DATA_IND 0x7701 ; DTI_DATA_TEST_REQ 0x3702 ; DTI_DATA_TEST_IND 0x7702 ; DTI_DUMMY_REQ 0x3703 PRIM DTI_READY_IND 0x7700 { tui ; transmission unit identifier c_id ; channel identifier op_ack ; operation mode (acknowledged or not) } PRIM DTI_GETDATA_REQ 0x3700 { tui ; transmission unit identifier c_id ; channel identifier op_ack ; operation mode (acknowledged or not) } PRIM DTI_DATA_REQ 0x3701 { tui ; transmission unit identifier c_id ; channel identifier p_id ; protocol identifier op_ack ; operation mode (acknowledged or not) st_flow ; flow control state st_line_sa ; line state sa st_line_sb ; line state sb st_escape ; escape state desc_list ; list of generic data descriptors } PRIM DTI_DATA_IND 0x7701 { tui ; transmission unit identifier c_id ; channel identifier p_id ; protocol identifier op_ack ; operation mode (acknowledged or not) st_flow ; flow control state st_line_sa ; line state sa st_line_sb ; line state sb st_escape ; escape state desc_list ; list of generic data descriptors } PRIM DTI_DATA_TEST_REQ 0x3702 { tui ; transmission unit identifier c_id ; channel identifier p_id ; protocol identifier op_ack ; operation mode (acknowledged or not) st_flow ; flow control state st_line_sa ; line state sa st_line_sb ; line state sb st_escape ; escape state sdu ; test data } PRIM DTI_DATA_TEST_IND 0x7702 { tui ; transmission unit identifier c_id ; channel identifier p_id ; protocol identifier op_ack ; operation mode (acknowledged or not) st_flow ; flow control state st_line_sa ; line state sa st_line_sb ; line state sb st_escape ; escape state sdu ; test data } PRIM DTI_DUMMY_REQ 0x3703 { desc ; generic data descriptor }