FreeCalypso > hg > fc-tourmaline
view cdg-hybrid/sap/udpa.pdf @ 268:f2e52cab0a73
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 : udpa.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 : udpa ;*** Document No. : 8444.103.02.006 ;*** Document Date : 2003-08-26 ;*** Document Status: BEING_PROCESSED ;*** Document Author: Jacek ;******************************************************************************** PRAGMA SRC_FILE_TIME "Thu Nov 29 09:56:38 2007" PRAGMA LAST_MODIFIED "2003-08-26" PRAGMA ID_AND_VERSION "8444.103.02.006" CONST UDPA_ENTITY_NAME_LEN 6 ; maximum length of entity name including NULL VALTAB VAL_dti_conn VAL 0 UDPA_CONNECT_DTI "Connect DTI2 to UDP" VAL 1 UDPA_DISCONNECT_DTI "Disconnect DTI2 from UDP" VALTAB VAL_link_id VAL 0 UDPA_LINK_ID_DEFAULT "Default link id" VALTAB VAL_dti_direction VAL 0 UDPA_DTI_TO_HIGHER_LAYER "DTI2 used normally" VAL 1 UDPA_DTI_TO_LOWER_LAYER "DTI2 is inverted" VALTAB VAL_cmd VAL 0 UDPA_CONFIG_UP "enable the interface" VAL 1 UDPA_CONFIG_DOWN "disable the interface" VAR dti_conn "DTI2 connect" B VAL @p_udpa - VAL_dti_conn@ VAR link_id "Link identifier" L VAL @p_udpa - VAL_link_id@ VAR dti_direction "DTI2 direction" B VAL @p_udpa - VAL_dti_direction@ VAR entity_name "name of an neighbour entity" B VAR cmd "command" B VAL @p_udpa - VAL_cmd@ ; UDPA_DTI_REQ 0x8000003B ; UDPA_DTI_CNF 0x8000403B ; UDPA_DTI_IND 0x8001403B ; UDPA_CONFIG_REQ 0x8001003B ; UDPA_CONFIG_CNF 0x8002403B PRIM UDPA_DTI_REQ 0x8000003B { dti_conn ; DTI connect entity_name [UDPA_ENTITY_NAME_LEN] ; Entity name link_id ; Link identifier dti_direction ; DTI direction } PRIM UDPA_DTI_CNF 0x8000403B { dti_conn ; DTI connect link_id ; Link identifier } PRIM UDPA_DTI_IND 0x8001403B { link_id ; link identifier } PRIM UDPA_CONFIG_REQ 0x8001003B { cmd ; Command } PRIM UDPA_CONFIG_CNF 0x8002403B { }