view cdg-hybrid/sap/llgmm.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           : llgmm.pdf
;*** Creation       : Wed Mar 11 09:58:16 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  : llgmm
;*** Document No.   : 8441.103.99.014
;*** Document Date  : 2003-03-21
;*** Document Status: BEING_PROCESSED
;*** Document Author: ANS
;********************************************************************************



PRAGMA 	SRC_FILE_TIME 	"Thu Nov 29 09:44:54 2007"
PRAGMA 	LAST_MODIFIED 	"2003-03-21"
PRAGMA 	ID_AND_VERSION 	"8441.103.99.014"



CONST 	LLGMM_MAX_SEQ_NR 	511 	; maximum sequence number value
CONST 	LLGMM_NUM_SAPIS 	16 	; number of SAPIs (not all are available)
CONST 	LLGMM_TLLI_INVALID 	0xFFFFFFFF 	; invalid TLLI value



VALTAB 	VAL_ciphering_algorithm
VAL 	0 	LLGMM_CIPHER_NO_ALGORITHM 	"no ciphering algorithm"
VAL 	1 	LLGMM_CIPHER_GPRS_A5_1 	"GPRS A5/1 ciphering algorithm"
VAL 	2 	LLGMM_CIPHER_GPRS_A5_2 	"GPRS A5/2 ciphering algorithm"
VAL 	255 	LLGMM_CIPHER_NA 	"value n/a"

VALTAB 	VAL_trigger_cause
VAL 	1 	LLGMM_TRICS_PAGE_RESPONSE 	"trigger was sent due to a received paging message"
VAL 	3 	LLGMM_TRICS_CELL_UPDATE 	"trigger was sent because of a cell update"
VAL 	4 	LLGMM_TRICS_CELL_UPDATE_NULL_FRAME 	%REL99% 	"LLC can use NULL frame for cell updates"

VALTAB 	VAL_error_cause
VAL 	0 - 99 	"reserved for GRR error causes"
VAL 	DEF 	 	"invalid error cause"
VAL 	0b1101000001100100 	LLGMM_ERRCS_INVALID_UA 	"invalid UA response"
VAL 	0b1101000001100101 	LLGMM_ERRCS_SABM_INVALID_XID 	"invalid XID response during connection establishment"
VAL 	0b1101000001100110 	LLGMM_ERRCS_SABM_NO_PEER_RES 	"no peer response during connection establishment"
VAL 	0b1101000001100111 	LLGMM_ERRCS_XID_INVALID_XID 	"invalid XID response during parameter negotiation"
VAL 	0b1101000001101000 	LLGMM_ERRCS_XID_NO_PEER_RES 	"no peer response during parameter negotiation"
VAL 	0b1101000001101001 	LLGMM_ERRCS_DISC_NO_PEER_RES 	"no peer response during release of connection"
VAL 	0b1101000001101010 	LLGMM_ERRCS_MULT_ASS_TLLI 	"possible multiple assignment of a TLLI value"
VAL 	0b1101000001101011 	LLGMM_ERRCS_DM1_RECEIVED 	"unsolicited DM response with F bit 1 in state ABM"
VAL 	0b1101000001101100 	LLGMM_ERRCS_DM1_RECEIVED_REEST 	"unsolicited DM response with F bit 1 in state Timer Recovery; re-establishment procedure initiated"
VAL 	0b1101000001101101 	LLGMM_ERRCS_ACK_NO_PEER_RES_REEST 	"no peer response during waiting for acknowledgement; re-establishment procedure initiated"
VAL 	0b1101000001101110 	LLGMM_ERRCS_PEER_BUSY_REEST 	"peer receiver busy condition; re-establishment procedure initiated"
VAL 	0b1101000001101111 	LLGMM_ERRCS_FRMR_COND 	"frame rejection condition; frame discarded"
VAL 	0b1101000001110000 	LLGMM_ERRCS_FRMR_COND_REEST 	"frame rejection condition; re-establishment procedure initiated"
VAL 	0b1101000001110001 	LLGMM_ERRCS_FRMR_RECEIVED 	"FRMR response received; frame discarded"
VAL 	0b1101000001110010 	LLGMM_ERRCS_L3_REEST 	"layer 3 initiated re-establishment procedure"
VAL 	0b1101000001110011 	LLGMM_ERRCS_PEER_REEST 	"peer initiated re-establishment procedure"
VAL 	0b1101000001110100 	LLGMM_ERRCS_DM0_RECEIVED_REEST 	"unsolicited DM response with F bit 0; re-establishment procedure initiated"

VALTAB 	VAL_susp_cause
VAL 	DEF 	 	"suspension because of Attach or RAU"
VAL 	0 	LLGMM_RAU 	"suspension because of Attach or RAU, GRR has to be suspended"
VAL 	1 	LLGMM_CALL 	"suspension because of GSM establishment request"
VAL 	2 	LLGMM_LIMITED 	"suspension because of limited service"
VAL 	3 	LLGMM_PERIODIC_RAU 	"suspension because of periodic RAU"
VAL 	4 	LLGMM_NO_GPRS_SERVICE 	"suspension because of no service or no GPRS supported"




VAR 	old_tlli 	"old temporary logical link identifier" 	L


VAR 	new_tlli 	"new temporary logical link identifier" 	L


VAR 	key 	"ciphering key content" 	B


VAR 	ciphering_algorithm 	"ciphering algorithm" 	B

VAL 	@p_llgmm - VAL_ciphering_algorithm@ 	

VAR 	trigger_cause 	"cause of the trigger primitive" 	B

VAL 	@p_llgmm - VAL_trigger_cause@ 	

VAR 	error_cause 	"error cause" 	S

VAL 	@p_llgmm - VAL_error_cause@ 	

VAR 	susp_cause 	"suspension cause" 	B

VAL 	@p_llgmm - VAL_susp_cause@ 	




COMP 	llgmm_kc 	 "GPRS ciphering key"
{
 	key 	[8] 	 ; ciphering key content
}






; LLGMM_ASSIGN_REQ 	0x2100
; LLGMM_TRIGGER_REQ 	0x2101
; LLGMM_SUSPEND_REQ 	0x2102
; LLGMM_RESUME_REQ 	0x2103
; LLGMM_STATUS_IND 	0x6100
; LLGMM_TLLI_IND 	0x6101



PRIM 	LLGMM_ASSIGN_REQ 	0x2100
{
 	old_tlli 	 ; old temporary logical link entity
 	new_tlli 	 ; new temporary logical link entity
 	llgmm_kc 	 ; ciphering key
 	ciphering_algorithm 	 ; ciphering algorithm
}






PRIM 	LLGMM_TRIGGER_REQ 	0x2101
{
 	trigger_cause 	 ; trigger cause
}






PRIM 	LLGMM_SUSPEND_REQ 	0x2102
{
 	susp_cause 	 ; suspension cause
}






PRIM 	LLGMM_RESUME_REQ 	0x2103
{
}






PRIM 	LLGMM_STATUS_IND 	0x6100
{
 	error_cause 	 ; error cause
}






PRIM 	LLGMM_TLLI_IND 	0x6101
{
 	new_tlli 	 ; Newly received TLLI
}