FreeCalypso > hg > fc-tourmaline
view cdg-hybrid/sap/mmss.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 : mmss.pdf ;*** Creation : Wed Mar 11 09:58:23 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 : mmss ;*** Document No. : 6147.105.97.102 ;*** Document Date : 2002-07-19 ;*** Document Status: BEING_PROCESSED ;*** Document Author: HM ;******************************************************************************** PRAGMA SRC_FILE_TIME "Thu Nov 29 09:47:24 2007" PRAGMA LAST_MODIFIED "2002-07-19" PRAGMA ID_AND_VERSION "6147.105.97.102" CONST MAX_SDU_LEN 1 ; maximum service data unit length VALTAB VAL_ti VAL 0 - 6 "ms originated transaction" VAL 8 - 14 "ms originated transaction" VAL 7 TI_RES_MO "reserved" VAL 15 TI_RES_MT "reserved" VAR cause "MM cause" S VAR l_buf "length in bits" S VAR o_buf "offset in bits" S VAR buf "bit buffer" B VAR ti "transaction identifier" B VAL @p_mmss - VAL_ti@ VAR d1 "dummy, not used" B VAR d2 "dummy, not used" B COMP sdu "Service Data Unit" { l_buf ; length in bits o_buf ; offset in bits buf [MAX_SDU_LEN] ; bit buffer } ; MMSS_ESTABLISH_REQ 0x80000008 ; MMSS_RELEASE_REQ 0x80010008 ; MMSS_DATA_REQ 0x80020008 ; MMSS_DATA_IND 0x80004008 ; MMSS_ERROR_IND 0x80014008 ; MMSS_ESTABLISH_CNF 0x80024008 ; MMSS_ESTABLISH_IND 0x80034008 ; MMSS_RELEASE_IND 0x80044008 PRIM MMSS_ESTABLISH_REQ 0x80000008 { ti ; transaction identifier } PRIM MMSS_RELEASE_REQ 0x80010008 { ti ; transaction identifier } PRIM MMSS_DATA_REQ 0x80020008 { d1 ; dummy d2 ; dummy sdu ; service data unit } PRIM MMSS_DATA_IND 0x80004008 { d1 ; dummy d2 ; dummy sdu ; service data unit } PRIM MMSS_ERROR_IND 0x80014008 { ti ; transaction identifier cause ; error cause } PRIM MMSS_ESTABLISH_CNF 0x80024008 { ti ; transaction identifier } PRIM MMSS_ESTABLISH_IND 0x80034008 { d1 ; dummy d2 ; dummy sdu ; service data unit } PRIM MMSS_RELEASE_IND 0x80044008 { ti ; transaction identifier cause ; release cause }