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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           : 8010_135_sn_sap.pdf
;*** Creation       : Wed Mar 11 09:57:49 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  : 8010_135_sn_sap
;*** Document No.   : 8010.135.04.012
;*** Document Date  : 2004-06-08
;*** Document Status: APPROVED
;*** Document Author: rpk
;********************************************************************************



PRAGMA 	SRC_FILE_TIME 	"Thu Nov 29 09:27:14 2007"
PRAGMA 	LAST_MODIFIED 	"2004-06-08"
PRAGMA 	ID_AND_VERSION 	"8010.135.04.012"
PRAGMA 	PREFIX 	SN 	; Prefix for this document
PRAGMA 	ALLWAYS_ENUM_IN_VAL_FILE 	YES 	; Enumeration values in value file
PRAGMA 	ENABLE_GROUP 	NO 	; Enable h-file grouping
PRAGMA 	COMPATIBILITY_DEFINES 	NO 	; Compatible to the old #defines



CONST 	MAX_UL_PDU 	255 	; Max number of unconfirmed PDUs transferred between RATs (in SN_GET_PENDING_PDU_CNF).
EXTERN CONST 	@p_8010_137_nas_include - SIZE_NSAPI@ 	SIZE_NSAPI 	; Maximum NSAPI array index for SN_GET_PENDING_PDU_CNF



VALTAB 	VAL_establish
VAL 	0 	ACTIVE_ESTABLISHMENT 	"SNDCP shall send LL_ESTABLISH_REQ"
VAL 	1 	PASSIVE_ESTABLISHMENT 	"SNDCP shall wait for LL_ESTABLISH_IND"




VAR 	list_len 	"Octet count of data in all descriptors" 	S


VAR 	first 	"Pointer to first descriptor in list" 	L


VAR 	dl_sequence_number 	"Sequence number of last unacknowledged downlink PDU (used by the network)" 	B


VAR 	establish 	"" 	B

VAL 	@p_8010_135_sn_sap - VAL_establish@ 	

VAR 	receive_no 	"Receive NPDU number" 	B


VAR 	dti_neighbor 	"DTI neighbor entity name." 	L





COMP 	desc_list2 	 "DTI parameters"
{
 	list_len 	 ; Octet count of data in all descriptors
 	first 	 ; Pointer to first descriptor in list
}



COMP 	ul_pdus 	 "Sequence number and descriptor list handles pr. NSAPI"
{
 	EXTERN @p_8010_137_nas_include - nsapi@ 	nsapi 	 ; Network Service Access Point Identifier
 	dl_sequence_number 	 ; Sequence number of last unacknowledged downlink PDU (used by the network)
 	desc_list2 	PTR [0 .. MAX_UL_PDU] 	 ; List of unconfirmed uplink PDUs
}



COMP 	receive_no_list 	 "Ssequence numbers and MEM  handles pr. NSAPI"
{
 	EXTERN @p_8010_137_nas_include - nsapi@ 	nsapi 	 ; Network layer Service Access Point Identifier
 	receive_no 	 ; Receive NPDU number
}






; SN_ACTIVATE_CNF 	0x8000409E
; SN_ACTIVATE_REQ 	0x8000009E
; SN_DEACTIVATE_CNF 	0x8002409E
; SN_DEACTIVATE_REQ 	0x8001009E
; SN_GET_PENDING_PDU_CNF 	0x8003409E
; SN_GET_PENDING_PDU_REQ 	0x8002009E
; SN_MODIFY_CNF 	0x8004409E
; SN_MODIFY_REQ 	0x8003009E
; SN_STATUS_IND 	0x8005409E
; SN_SEQUENCE_REQ 	0x8004009E
; SN_SEQUENCE_CNF 	0x8006409E
; SN_COUNT_REQ 	0x8005009E
; SN_COUNT_CNF 	0x8008409E
; SN_DTI_REQ 	0x8006009E
; SN_DTI_CNF 	0x8009409E



PRIM 	SN_ACTIVATE_CNF 	0x8000409E
{
 	EXTERN @p_8010_137_nas_include - nsapi@ 	nsapi 	 ; Network layer service access point identifier
 	EXTERN @p_8010_137_nas_include - comp_params@ 	comp_params 	 ; Compression parameters
}






PRIM 	SN_ACTIVATE_REQ 	0x8000009E
{
 	EXTERN @p_8010_137_nas_include - nsapi@ 	nsapi 	 ; Network layer service access point identifier
 	EXTERN @p_8010_152_ps_include - sapi@ 	sapi 	 ; LLC service access point identifier
 	EXTERN @p_8010_152_ps_include - radio_prio@ 	radio_prio 	 ; Radio priority
 	EXTERN @p_8010_152_ps_include - qos_r97@ 	qos_r97 AS snsm_qos 	 ; Peak throughput and other qos
 	establish 	 ; Establish request
 	EXTERN @p_8010_137_nas_include - comp_params@ 	comp_params 	 ; Compression parameters
 	EXTERN @p_8010_152_ps_include - pkt_flow_id@ 	pkt_flow_id 	 ; Packet Flow Identifier
}






PRIM 	SN_DEACTIVATE_CNF 	0x8002409E
{
 	EXTERN @p_8010_137_nas_include - nsapi@ 	nsapi 	 ; Network layer service access point identifier
}






PRIM 	SN_DEACTIVATE_REQ 	0x8001009E
{
 	EXTERN @p_8010_137_nas_include - nsapi@ 	nsapi 	 ; Network layer service access point identifier
 	EXTERN @p_8010_152_ps_include - rel_ind@ 	rel_ind 	 ; Local release indicator
}






PRIM 	SN_GET_PENDING_PDU_CNF 	0x8003409E
{
 	ul_pdus 	[0..SIZE_NSAPI] 	 ; Array of DTI description lists and sequence numbers.
}






PRIM 	SN_GET_PENDING_PDU_REQ 	0x8002009E
{
}






PRIM 	SN_MODIFY_CNF 	0x8004409E
{
 	EXTERN @p_8010_137_nas_include - nsapi@ 	nsapi 	 ; Network layer service access point identifier
}






PRIM 	SN_MODIFY_REQ 	0x8003009E
{
 	EXTERN @p_8010_137_nas_include - nsapi@ 	nsapi 	 ; Network layer service access point identifier
 	EXTERN @p_8010_152_ps_include - sapi@ 	sapi 	 ; LLC service access point identifier
 	EXTERN @p_8010_152_ps_include - radio_prio@ 	radio_prio 	 ; Radio priority
 	EXTERN @p_8010_152_ps_include - qos_r97@ 	qos_r97 AS snsm_qos 	 ; Reliability class and other qos
 	EXTERN @p_8010_152_ps_include - pkt_flow_id@ 	pkt_flow_id 	 ; Packet Flow Identifier
}






PRIM 	SN_STATUS_IND 	0x8005409E
{
 	EXTERN @p_8010_137_nas_include - nsapi_set@ 	nsapi_set 	 ; Set of network layer service access point identifier
 	EXTERN @p_8010_152_ps_include - sapi@ 	sapi 	 ; LLC service access point identifier
 	EXTERN @p_8010_153_cause_include - ps_cause@ 	ps_cause 	 ; Cause parameter
}






PRIM 	SN_SEQUENCE_REQ 	0x8004009E
{
 	receive_no_list 	[0..SIZE_NSAPI] 	 ; Receive NDPU number list
}






PRIM 	SN_SEQUENCE_CNF 	0x8006409E
{
 	receive_no_list 	[0..SIZE_NSAPI] 	 ; Receive NDPU number list
}






PRIM 	SN_COUNT_REQ 	0x8005009E
{
 	EXTERN @p_8010_137_nas_include - nsapi@ 	nsapi 	 ; network layer service access point identifier
 	EXTERN @p_8010_137_nas_include - reset@ 	reset 	 ; shall counters be reset
}






PRIM 	SN_COUNT_CNF 	0x8008409E
{
 	EXTERN @p_8010_137_nas_include - nsapi@ 	nsapi 	 ; network layer service access point identifier
 	EXTERN @p_8010_137_nas_include - octets_uplink@ 	octets_uplink 	 ; octets uplink
 	EXTERN @p_8010_137_nas_include - octets_downlink@ 	octets_downlink 	 ; octets  downlink
 	EXTERN @p_8010_137_nas_include - packets_uplink@ 	packets_uplink 	 ; packets uplink
 	EXTERN @p_8010_137_nas_include - packets_downlink@ 	packets_downlink 	 ; packets downlink
}






PRIM 	SN_DTI_REQ 	0x8006009E
{
 	EXTERN @p_8010_137_nas_include - nsapi@ 	nsapi 	 ; network layer service access point identifier
 	EXTERN @p_8010_137_nas_include - dti_conn@ 	dti_conn 	 ; dti connect
 	EXTERN @p_8010_137_nas_include - dti_linkid@ 	dti_linkid 	 ; dti linkid
 	dti_neighbor 	 ; dti neighbor
 	EXTERN @p_8010_137_nas_include - dti_direction@ 	dti_direction 	 ; dti direction
}






PRIM 	SN_DTI_CNF 	0x8009409E
{
 	EXTERN @p_8010_137_nas_include - dti_linkid@ 	dti_linkid 	 ; dti linkid
 	EXTERN @p_8010_137_nas_include - dti_conn@ 	dti_conn 	 ; dti  connect
}