FreeCalypso > hg > fc-tourmaline
view cdg-hybrid/sap/udpa.pdf @ 303:f76436d19a7a default tip
!GPRS config: fix long-standing AT+COPS chance hanging bug
There has been a long-standing bug in FreeCalypso going back years:
sometimes in the AT command bring-up sequence of an ACI-only MS,
the AT+COPS command would produce only a power scan followed by
cessation of protocol stack activity (only L1 ADC traces), instead
of the expected network search sequence. This behaviour was seen
in different FC firmware versions going back to Citrine, and seemed
to follow some law of chance, not reliably repeatable.
This bug has been tracked down and found to be specific to !GPRS
configuration, stemming from our TCS2/TCS3 hybrid and reconstruction
of !GPRS support that was bitrotten in TCS3.2/LoCosto version.
ACI module psa_mms.c, needed only for !GPRS, was missing in the TCS3
version and had to be pulled from TCS2 - but as it turns out,
there is a new field in the MMR_REG_REQ primitive that needs to be
set correctly, and that psa_mms.c module is the place where this
initialization needed to be added.
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Thu, 08 Jun 2023 08:23:37 +0000 |
parents | 35f7a1dc9f7d |
children |
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;******************************************************************************** ;*** File : udpa.pdf ;*** Creation : Wed Mar 11 09:58:55 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 : udpa ;*** Document No. : 8444.103.02.006 ;*** Document Date : 2003-08-26 ;*** Document Status: BEING_PROCESSED ;*** Document Author: Jacek ;******************************************************************************** PRAGMA SRC_FILE_TIME "Thu Nov 29 09:56:38 2007" PRAGMA LAST_MODIFIED "2003-08-26" PRAGMA ID_AND_VERSION "8444.103.02.006" CONST UDPA_ENTITY_NAME_LEN 6 ; maximum length of entity name including NULL VALTAB VAL_dti_conn VAL 0 UDPA_CONNECT_DTI "Connect DTI2 to UDP" VAL 1 UDPA_DISCONNECT_DTI "Disconnect DTI2 from UDP" VALTAB VAL_link_id VAL 0 UDPA_LINK_ID_DEFAULT "Default link id" VALTAB VAL_dti_direction VAL 0 UDPA_DTI_TO_HIGHER_LAYER "DTI2 used normally" VAL 1 UDPA_DTI_TO_LOWER_LAYER "DTI2 is inverted" VALTAB VAL_cmd VAL 0 UDPA_CONFIG_UP "enable the interface" VAL 1 UDPA_CONFIG_DOWN "disable the interface" VAR dti_conn "DTI2 connect" B VAL @p_udpa - VAL_dti_conn@ VAR link_id "Link identifier" L VAL @p_udpa - VAL_link_id@ VAR dti_direction "DTI2 direction" B VAL @p_udpa - VAL_dti_direction@ VAR entity_name "name of an neighbour entity" B VAR cmd "command" B VAL @p_udpa - VAL_cmd@ ; UDPA_DTI_REQ 0x8000003B ; UDPA_DTI_CNF 0x8000403B ; UDPA_DTI_IND 0x8001403B ; UDPA_CONFIG_REQ 0x8001003B ; UDPA_CONFIG_CNF 0x8002403B PRIM UDPA_DTI_REQ 0x8000003B { dti_conn ; DTI connect entity_name [UDPA_ENTITY_NAME_LEN] ; Entity name link_id ; Link identifier dti_direction ; DTI direction } PRIM UDPA_DTI_CNF 0x8000403B { dti_conn ; DTI connect link_id ; Link identifier } PRIM UDPA_DTI_IND 0x8001403B { link_id ; link identifier } PRIM UDPA_CONFIG_REQ 0x8001003B { cmd ; Command } PRIM UDPA_CONFIG_CNF 0x8002403B { }