view cdg-hybrid/sap/mmss.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           : mmss.pdf
;*** Creation       : Wed Mar 11 09:58:23 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  : mmss
;*** Document No.   : 6147.105.97.102
;*** Document Date  : 2002-07-19
;*** Document Status: BEING_PROCESSED
;*** Document Author: HM
;********************************************************************************



PRAGMA 	SRC_FILE_TIME 	"Thu Nov 29 09:47:24 2007"
PRAGMA 	LAST_MODIFIED 	"2002-07-19"
PRAGMA 	ID_AND_VERSION 	"6147.105.97.102"



CONST 	MAX_SDU_LEN 	1 	; maximum service data unit length



VALTAB 	VAL_ti
VAL 	0 - 6 	"ms originated transaction"
VAL 	8 - 14 	"ms originated transaction"
VAL 	7 	TI_RES_MO 	"reserved"
VAL 	15 	TI_RES_MT 	"reserved"




VAR 	cause 	"MM cause" 	S


VAR 	l_buf 	"length in bits" 	S


VAR 	o_buf 	"offset in bits" 	S


VAR 	buf 	"bit buffer" 	B


VAR 	ti 	"transaction identifier" 	B

VAL 	@p_mmss - VAL_ti@ 	

VAR 	d1 	"dummy, not used" 	B


VAR 	d2 	"dummy, not used" 	B





COMP 	sdu 	 "Service Data Unit"
{
 	l_buf 	 ; length in bits
 	o_buf 	 ; offset in bits
 	buf 	[MAX_SDU_LEN] 	 ; bit buffer
}






; MMSS_ESTABLISH_REQ 	0x80000008
; MMSS_RELEASE_REQ 	0x80010008
; MMSS_DATA_REQ 	0x80020008
; MMSS_DATA_IND 	0x80004008
; MMSS_ERROR_IND 	0x80014008
; MMSS_ESTABLISH_CNF 	0x80024008
; MMSS_ESTABLISH_IND 	0x80034008
; MMSS_RELEASE_IND 	0x80044008



PRIM 	MMSS_ESTABLISH_REQ 	0x80000008
{
 	ti 	 ; transaction identifier
}






PRIM 	MMSS_RELEASE_REQ 	0x80010008
{
 	ti 	 ; transaction identifier
}






PRIM 	MMSS_DATA_REQ 	0x80020008
{
 	d1 	 ; dummy
 	d2 	 ; dummy
 	sdu 	 ; service data unit
}






PRIM 	MMSS_DATA_IND 	0x80004008
{
 	d1 	 ; dummy
 	d2 	 ; dummy
 	sdu 	 ; service data unit
}






PRIM 	MMSS_ERROR_IND 	0x80014008
{
 	ti 	 ; transaction identifier
 	cause 	 ; error cause
}






PRIM 	MMSS_ESTABLISH_CNF 	0x80024008
{
 	ti 	 ; transaction identifier
}






PRIM 	MMSS_ESTABLISH_IND 	0x80034008
{
 	d1 	 ; dummy
 	d2 	 ; dummy
 	sdu 	 ; service data unit
}






PRIM 	MMSS_RELEASE_IND 	0x80044008
{
 	ti 	 ; transaction identifier
 	cause 	 ; release cause
}