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!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
}