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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           : udp.pdf
;*** Creation       : Wed Mar 11 09:58:55 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  : udp
;*** Document No.   : 8444.100.00.006
;*** Document Date  : 2003-08-26
;*** Document Status: BEING_PROCESSED
;*** Document Author: JK
;********************************************************************************



PRAGMA 	SRC_FILE_TIME 	"Thu Nov 29 09:56:22 2007"
PRAGMA 	LAST_MODIFIED 	"2003-08-26"
PRAGMA 	ID_AND_VERSION 	"8444.100.00.006"






VALTAB 	VAL_port
VAL 	0 	UDP_AUTOASSIGN_PORT 	"UDP must assign a free port number"

VALTAB 	VAL_err
VAL 	0 	UDP_BIND_NOERROR 	"no error"
VAL 	1 	UDP_BIND_PORTINUSE 	"port already in use"
VAL 	2 	UDP_BIND_UDPDOWN 	"udp is deactivated"




VAR 	port 	"destination port" 	S

VAL 	@p_udp - VAL_port@ 	

VAR 	err 	"error code" 	B

VAL 	@p_udp - VAL_err@ 	

VAR 	dst_port 	"destination port" 	S


VAR 	src_port 	"source port" 	S


VAR 	err_msg 	"error message" 	B


VAR 	src_addr 	"source address" 	L


VAR 	dst_addr 	"destination address" 	L








; UDP_BIND_REQ 	0x80000046
; UDP_BIND_CNF 	0x80004046
; UDP_CLOSEPORT_REQ 	0x80010046
; UDP_CLOSEPORT_CNF 	0x80014046
; UDP_ERROR_IND 	0x80024046
; UDP_ERROR_RES 	0x80020046
; UDP_SHUTDOWN_IND 	0x80034046
; UDP_SHUTDOWN_RES 	0x80030046



PRIM 	UDP_BIND_REQ 	0x80000046
{
 	port 	 ; port
}






PRIM 	UDP_BIND_CNF 	0x80004046
{
 	port 	 ; port
 	err 	 ; error code
}






PRIM 	UDP_CLOSEPORT_REQ 	0x80010046
{
 	port 	 ; port
}






PRIM 	UDP_CLOSEPORT_CNF 	0x80014046
{
}






PRIM 	UDP_ERROR_IND 	0x80024046
{
 	dst_port 	 ; Destination port
 	src_port 	 ; source port
 	err_msg 	 ; error message
 	src_addr 	 ; source address
 	dst_addr 	 ; Destination address
}






PRIM 	UDP_ERROR_RES 	0x80020046
{
}






PRIM 	UDP_SHUTDOWN_IND 	0x80034046
{
}






PRIM 	UDP_SHUTDOWN_RES 	0x80030046
{
}