FreeCalypso > hg > fc-tourmaline
view cdg-hybrid/sap/mdl.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 : mdl.pdf ;*** Creation : Wed Mar 11 09:58:17 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 : mdl ;*** Document No. : 6147.111.97.101 ;*** Document Date : 2002-04-19 ;*** Document Status: BEING_PROCESSED ;*** Document Author: SBK ;******************************************************************************** PRAGMA SRC_FILE_TIME "Thu Nov 29 09:45:46 2007" PRAGMA LAST_MODIFIED "2002-04-19" PRAGMA ID_AND_VERSION "6147.111.97.101" VALTAB VAL_ch_type VAL 0 CH_TYPE_SACCH "SACCH" VAL 1 CH_TYPE_SDCCH "SDCCH" VAL 2 CH_TYPE_FACCH "FACCH" VAL 3 CH_TYPE_BCCH "BCCH" VAL 4 CH_TYPE_CCCH "CCCH" VAL 5 CH_TYPE_RACH "RACH" VAL 6 CH_TYPE_NBR_CEL_BCCH "Neighbour Cell BCCH" VALTAB VAL_sapi VAL 0 SAPI_0 "SAPI 0" VAL 3 SAPI_3 "SAPI 3" VALTAB VAL_cs VAL 0 CS_T200_EXP "T200 expired (N200 + 1 times)" VAL 1 CS_REEST_REQ "re-establishment request" VAL 2 CS_UNSOL_UA_RESP "unsolicited UA response" VAL 3 CS_UNSOL_DM_RESP "unsolicited DM response" VAL 4 CS_UNSOL_DM_RESP_MULT_FRM "unsolicited DM response, multiple frame established state" VAL 5 CS_UNSOL_SUP_RESP "unsolicited supervisory response" VAL 6 CS_SEQ_ERR "sequence error" VAL 7 CS_UFRM_W_INC_PARA "U frame with incorrect parameters" VAL 8 CS_SFRM_W_INC_PARA "S frame with incorrect parameters" VAL 9 CS_IFRM_W_INC_MBIT "I frame with incorrect use of M bit" VAL 10 CS_IFRM_W_INC_LEN "I frame with incorrect length" VAL 11 CS_FRM_NOT_IMPL "frame not implemented" VAL 12 CS_SABM_MULT_FRM "SABM command, multiple frame established state" VAL 13 CS_SABM_NO_INFO "SABM command with information field not allowed in this state" VAL 14 CS_NR_SEQ_ERR "sequence error, perform abnormal release" VAR ch_type "channel type" B VAL @p_mdl - VAL_ch_type@ VAR sapi "service access point identifier" B VAL @p_mdl - VAL_sapi@ VAR cs "error cause" B VAL @p_mdl - VAL_cs@ ; MDL_ERROR_IND 0x80000004 ; MDL_RELEASE_REQ 0x80004004 PRIM MDL_ERROR_IND 0x80000004 { ch_type ; channel type sapi ; service access point identifier cs ; error cause } PRIM MDL_RELEASE_REQ 0x80004004 { ch_type ; channel type sapi ; service access point identifier }