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abb_inth.c: check all interrupt causes, not just one The original code used if - else if - else if etc constructs, thus the first detected interrupt was the only one handled. However, Iota ITSTATREG is a clear-on-read register, thus if we only handle the first detected interrupt and skip checking the others, then the other interrupts will be lost, if more than one interrupt happened to occur in one ABB interrupt handling cycle - a form of rare race condition. Change the code to check all interrupts that were read in this cycle.
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 13 Jun 2021 18:17:53 +0000
parents 35f7a1dc9f7d
children
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;********************************************************************************
;*** File           : ppp.pdf
;*** Creation       : Wed Mar 11 09:58:36 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  : ppp
;*** Document No.   : 8441.116.99.016
;*** Document Date  : 2002-10-21
;*** Document Status: BEING_PROCESSED
;*** Document Author: STW
;********************************************************************************



PRAGMA 	SRC_FILE_TIME 	"Thu Nov 29 09:51:00 2007"
PRAGMA 	LAST_MODIFIED 	"2002-10-21"
PRAGMA 	ID_AND_VERSION 	"8441.116.99.016"



CONST 	PPP_LOGIN_NAME_LENGTH 	33 	; Length of login name 
CONST 	PPP_PASSWORD_LENGTH 	25 	; Length of password
EXTERN CONST 	@p_gsmcom - PPP_ORIGINATING_ENTITY@ 	PPP_ORIGINATING_ENTITY 	; mask for indicating the originating entity of a cause is PPP



VALTAB 	VAL_mru
VAL 	1500 	PPP_MRU_DEFAULT 	"default value for mru"

VALTAB 	VAL_ap
VAL 	0 	PPP_AP_NO 	"no authentication"
VAL 	1 	PPP_AP_PAP 	"password authentication protocol"
VAL 	2 	PPP_AP_CHAP 	"challenge handshake authentication protocol"
VAL 	3 	PPP_AP_AUTO 	"automatic authentication"

VALTAB 	VAL_accm
VAL 	0xFFFFFFFF 	PPP_ACCM_DEFAULT 	"default value for accm"
VAL 	0x00000000 	PPP_ACCM_OFF 	"disable control character mapping"

VALTAB 	VAL_rt
VAL 	3 	PPP_RT_DEFAULT 	"default value for restart timer"

VALTAB 	VAL_mc
VAL 	10 	PPP_MC_DEFAULT 	"default value for max configure"

VALTAB 	VAL_mt
VAL 	2 	PPP_MT_DEFAULT 	"default value for max terminate"

VALTAB 	VAL_mf
VAL 	5 	PPP_MF_DEFAULT 	"default value for max failure"

VALTAB 	VAL_ppp_cause
VAL 	0b1100111100000001 	PPP_TERM_OK_MMI 	"successful terminated (MMI initiated)"
VAL 	0b1100111100000010 	PPP_TERM_OK_PEER 	"successful terminated (PPP peer initiated)"
VAL 	0b1100111100000011 	PPP_TERM_NO_RESPONSE 	"no response from the PPP peer"
VAL 	0b1100111100000100 	PPP_TERM_LOOP_BACK 	"looped-back link detected"
VAL 	0b1100111100000101 	PPP_TERM_LCP_NOT_CONVERGE 	"LCP configuration is not converging"
VAL 	0b1100111100000110 	PPP_TERM_IPCP_NOT_CONVERGE 	"IPCP configuration is not converging"
VAL 	0b1100111100000111 	PPP_TERM_IPCP_NOT_STARTED 	"PPP peer did not start IPCP configuration"
VAL 	0b1100111100001000 	PPP_TERM_NO_CHANNEL 	"can not open communication channels"
VAL 	0b1100111100001001 	PPP_TERM_PROT_REJ_UNEXPECTED 	"unexpected Protocol Rejection from PPP peer"
VAL 	0b1100111100001010 	PPP_TERM_USE_AUTHED_FAILED 	"user authentication failed"
VAL 	0b1100111100001011 	PPP_TERM_PROT_ERROR_UNSPEC 	"unspecified protocol error"

VALTAB 	VAL_ppp_hc
VAL 	0 	PPP_HC_OFF 	"no header compression"
VAL 	1 	PPP_HC_VJ 	"Van Jacobson header compression"

VALTAB 	VAL_ip
VAL 	0x00000000 	PPP_IP_DYNAMIC 	"dynaminc IP address negotiation"

VALTAB 	VAL_dns1
VAL 	0x00000000 	PPP_DNS1_DYNAMIC 	"dynaminc primary DNS server address negotiation"

VALTAB 	VAL_dns2
VAL 	0x00000000 	PPP_DNS2_DYNAMIC 	"dynaminc secondary DNS server address negotiation"

VALTAB 	VAL_mode
VAL 	0 	PPP_CLIENT 	"start PPP as client"
VAL 	1 	PPP_SERVER 	"start PPP as server"
VAL 	2 	PPP_TRANSPARENT 	"start PPP in transparent mode"

VALTAB 	VAL_lower_layer
VAL 	0 	PPP_LOWER_LAYER_DOWN 	"lower layer is not available"
VAL 	1 	PPP_LOWER_LAYER_UP 	"lower layer is available"

VALTAB 	VAL_connected_direction
VAL 	0 	PPP_DTI_CONN_PEER 	"DTI channel is connected to Peer Layer"
VAL 	1 	PPP_DTI_CONN_PROT 	"DTI channel is connected to Protocol Layer"




VAR 	mru 	"maximum receive unit" 	S

VAL 	@p_ppp - VAL_mru@ 	

VAR 	ap 	"authentication protocol" 	B

VAL 	@p_ppp - VAL_ap@ 	

VAR 	accm 	"async control character map" 	L

VAL 	@p_ppp - VAL_accm@ 	

VAR 	rt 	"restart timer" 	B

VAL 	@p_ppp - VAL_rt@ 	

VAR 	mc 	"max configure" 	B

VAL 	@p_ppp - VAL_mc@ 	

VAR 	mt 	"max terminate" 	B

VAL 	@p_ppp - VAL_mt@ 	

VAR 	mf 	"max failure" 	B

VAL 	@p_ppp - VAL_mf@ 	

VAR 	ppp_cause 	"PPP error cause" 	S

VAL 	@p_ppp - VAL_ppp_cause@ 	

VAR 	ppp_hc 	"header compression of PPP connection" 	B

VAL 	@p_ppp - VAL_ppp_hc@ 	

VAR 	msid 	"max slot identifier" 	B


VAR 	l_buf 	"length of content in bit" 	S


VAR 	o_buf 	"offset of content in bit" 	S


VAR 	Buf 	"protocol configuration options" 	B


VAR 	peer_entity 	"PPP-peer communication channel name value" 	B


VAR 	protocol_entity 	"network protocol communication channel name value" 	B


VAR 	name_len 	"length of name" 	B


VAR 	name 	"login name" 	B


VAR 	password_len 	"length of password" 	B


VAR 	password 	"login password" 	B


VAR 	ip 	"Internet Protocol address" 	L

VAL 	@p_ppp - VAL_ip@ 	

VAR 	dns1 	"primary DNS server address" 	L

VAL 	@p_ppp - VAL_dns1@ 	

VAR 	dns2 	"secondary DNS server address" 	L

VAL 	@p_ppp - VAL_dns2@ 	

VAR 	mode 	"working mode" 	B

VAL 	@p_ppp - VAL_mode@ 	

VAR 	lower_layer 	"status of lower layer" 	B

VAL 	@p_ppp - VAL_lower_layer@ 	

VAR 	peer_direction 	"Direction for the Peer Layer" 	B


VAR 	prot_direction 	"Direction for the Protocol Layer" 	B


VAR 	peer_link_id 	"Link Id to Peer Layer" 	L


VAR 	prot_link_id 	"Link Id to Protocol Layer" 	L


VAR 	connected_direction 	"DTI direction" 	B

VAL 	@p_ppp - VAL_connected_direction@ 	




COMP 	sdu 	 "list of protocol configuration options"
{
 	l_buf 	 ; length of content in bit
 	o_buf 	 ; offset of content in bit
 	Buf 	[1] 	 ; protocol configuration options
}



COMP 	peer_channel 	 "PPP-peer communication channel name"
{
 	peer_entity 	[6] 	 ; PPP-peer communication channel name value
}



COMP 	protocol_channel 	 "network protocol communication channel name"
{
 	protocol_entity 	[6] 	 ; network protocol communication channel name value
}



COMP 	login 	 "authentication values"
{
 	name_len 	 ; length of name
 	name 	[PPP_LOGIN_NAME_LENGTH] 	 ; login name
 	password_len 	 ; length of password
 	password 	[PPP_PASSWORD_LENGTH] 	 ; login password
}






; PPP_ESTABLISH_REQ 	0x7500
; PPP_ESTABLISH_CNF 	0x3500
; PPP_TERMINATE_REQ 	0x7501
; PPP_TERMINATE_IND 	0x3501
; PPP_PDP_ACTIVATE_IND 	0x3502
; PPP_PDP_ACTIVATE_RES 	0x7502
; PPP_PDP_ACTIVATE_REJ 	0x7503
; PPP_MODIFICATION_REQ 	0x7504
; PPP_MODIFICATION_CNF 	0x3503
; PPP_DTI_CONNECTED_IND 	0x3504
; NEW_POWER_STATUS 	0x7505



PRIM 	PPP_ESTABLISH_REQ 	0x7500
{
 	mode 	 ; working mode
 	mru 	 ; maximum receive unit
 	ap 	 ; authentication protocol
 	login 	 ; authentication values
 	accm 	 ; async control character map
 	rt 	 ; restart timer
 	mc 	 ; max configure
 	mt 	 ; max terminate
 	mf 	 ; max failure
 	ppp_hc 	 ; header compression of PPP connection
 	ip 	 ; Internet Protocol address
 	dns1 	 ; primary DNS server address
 	dns2 	 ; secondary DNS server address
 	peer_channel 	 ; PPP-peer communication channel name
 	protocol_channel 	 ; network protocol communication channel name
 	peer_direction 	 ; direction of PPP peer communication channel
 	prot_direction 	 ; direction of PPP protocol communication channel
 	peer_link_id 	 ; link id for peer channel
 	prot_link_id 	 ; link id for protocol channel
}






PRIM 	PPP_ESTABLISH_CNF 	0x3500
{
 	mru 	 ; maximum receive unit
 	ppp_hc 	 ; header compression of PPP connection
 	msid 	 ; max slot identifier
 	ip 	 ; Internet Protocol address
 	dns1 	 ; primary DNS server address
 	dns2 	 ; secondary DNS server address
}






PRIM 	PPP_TERMINATE_REQ 	0x7501
{
 	lower_layer 	 ; status of lower layer
}






PRIM 	PPP_TERMINATE_IND 	0x3501
{
 	ppp_cause 	 ; PPP error cause
}






PRIM 	PPP_PDP_ACTIVATE_IND 	0x3502
{
 	ppp_hc 	 ; header compression of PPP connection
 	msid 	 ; max slot identifier
 	sdu 	 ; list of protocol configuration options
}






PRIM 	PPP_PDP_ACTIVATE_RES 	0x7502
{
 	ppp_hc 	 ; header compression of PPP connection
 	msid 	 ; max slot identifier
 	ip 	 ; Internet Protocol address
 	sdu 	 ; list of protocol configuration options
}






PRIM 	PPP_PDP_ACTIVATE_REJ 	0x7503
{
 	ppp_cause 	 ; PPP error cause
}






PRIM 	PPP_MODIFICATION_REQ 	0x7504
{
 	ppp_hc 	 ; header compression of PPP connection
 	msid 	 ; max slot identifier
}






PRIM 	PPP_MODIFICATION_CNF 	0x3503
{
 	ppp_hc 	 ; header compression of PPP connection
 	msid 	 ; max slot identifier
}






PRIM 	PPP_DTI_CONNECTED_IND 	0x3504
{
 	connected_direction 	 ; connection DTI channel direction
}






PRIM 	NEW_POWER_STATUS 	0x7505
{
}