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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           : tra.pdf
;*** Creation       : Wed Mar 11 09:58:53 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  : tra
;*** Document No.   : 8411.106.98.101
;*** Document Date  : 2002-06-10
;*** Document Status: BEING_PROCESSED
;*** Document Author: TVO
;********************************************************************************



PRAGMA 	SRC_FILE_TIME 	"Thu Nov 29 09:55:46 2007"
PRAGMA 	LAST_MODIFIED 	"2002-06-10"
PRAGMA 	ID_AND_VERSION 	"8411.106.98.101"






VALTAB 	VAL_entity_name
VAL 	6 	TRA_ENTITY_NAME_LEN 	"Max name length"

VALTAB 	VAL_ack_flg
VAL 	0 	TRA_ACK 	"acknowledged"
VAL 	1 	TRA_NAK 	"not acknowledged"

VALTAB 	VAL_dti_direction
VAL 	0 	TRA_DTI_NORMAL 	"DTI used normally"
VAL 	1 	TRA_DTI_INVERTED 	"DTI is inverted"

VALTAB 	VAL_dti_conn
VAL 	0 	TRA_CONNECT_DTI 	"Connect DTI to TRA"
VAL 	1 	TRA_DISCONNECT_DTI 	"Connect DTI to upper layer"




VAR 	entity_name 	"name of an neighbour entity" 	B

VAL 	@p_tra - VAL_entity_name@ 	

VAR 	ack_flg 	"acknowledge flag" 	B

VAL 	@p_tra - VAL_ack_flg@ 	

VAR 	link_id 	"link identifier" 	L


VAR 	dti_direction 	"DTI direction" 	B

VAL 	@p_tra - VAL_dti_direction@ 	

VAR 	dti_conn 	"DTI connect" 	B

VAL 	@p_tra - VAL_dti_conn@ 	







; TRA_ACTIVATE_REQ 	0x80000019
; TRA_ACTIVATE_CNF 	0x80004019
; TRA_DEACTIVATE_REQ 	0x80010019
; TRA_DEACTIVATE_CNF 	0x80014019
; TRA_DTI_REQ 	0x80020019
; TRA_DTI_CNF 	0x80024019
; TRA_DTI_IND 	0x80034019



PRIM 	TRA_ACTIVATE_REQ 	0x80000019
{
}






PRIM 	TRA_ACTIVATE_CNF 	0x80004019
{
 	ack_flg 	 ; acknowledge flag
}






PRIM 	TRA_DEACTIVATE_REQ 	0x80010019
{
}






PRIM 	TRA_DEACTIVATE_CNF 	0x80014019
{
}






PRIM 	TRA_DTI_REQ 	0x80020019
{
 	dti_conn 	 ; DTI connect
 	link_id 	 ; Link identifier of DTI
 	entity_name 	[TRA_ENTITY_NAME_LEN] 	 ; Communication entity name
 	dti_direction 	 ; DTI direction
}






PRIM 	TRA_DTI_CNF 	0x80024019
{
 	dti_conn 	 ; DTI connect
 	link_id 	 ; Link identifier
}






PRIM 	TRA_DTI_IND 	0x80034019
{
 	link_id 	 ; link identifier
}