FreeCalypso > hg > fc-tourmaline
view cdg-hybrid/sap/rrrrlp.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 : rrrrlp.pdf ;*** Creation : Wed Mar 11 09:58:48 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 : rrrrlp ;*** Document No. : 0000.000.00.002 ;*** Document Date : 2002-09-10 ;*** Document Status: BEING_PROCESSED ;*** Document Author: VK ;******************************************************************************** PRAGMA SRC_FILE_TIME "Thu Nov 29 09:53:22 2007" PRAGMA LAST_MODIFIED "2002-09-10" PRAGMA ID_AND_VERSION "0000.000.00.002" CONST MAX_SDU_LEN 1 ; CONST MAX_NCELL_L1 12 ; Max no. of NC layer 1 is able to measure CONST MAX_NCELL_EOTD 15 ; Max no. of NC reported in the Measurement Assistance Data Element (3GPP 04.31) CONST MAX_NCELL_EOTD_SI 32 ; Max no. of NC reported in the Measurement Assistance Data SI List Element (3GPP 04.31) VAR dummy "Dummy" B VAR l_buf "length in bits" S VAR o_buf "offset in bits" S VAR buf "bit buffer" B VAR cr "Command or Response" B COMP sdu "Service Data Unit" { l_buf ; length in bits o_buf ; offset in bits buf [MAX_SDU_LEN] ; bit buffer } ; RRRRLP_DATA_IND 0x80004041 ; RRRRLP_DATA_REQ 0x80000041 ; RRRRLP_DATA_CNF 0x80014041 ; RRRRLP_ERROR_IND 0x80024041 PRIM RRRRLP_DATA_IND 0x80004041 { cr ; Command / Response sdu ; APDU_IND } PRIM RRRRLP_DATA_REQ 0x80000041 { cr ; Command / Response sdu ; APDU_REQ } PRIM RRRRLP_DATA_CNF 0x80014041 { dummy ; Dummy } PRIM RRRRLP_ERROR_IND 0x80024041 { dummy ; Dummy }