FreeCalypso > hg > fc-tourmaline
view src/g23m-aci/aci/dcm_f.c @ 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 | fa8dc04885d8 |
children |
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/* +----------------------------------------------------------------------------- | Project : | Modul : ACI - DCM +----------------------------------------------------------------------------- | Copyright 2002 Texas Instruments Berlin, AG | All rights reserved. | | This file is confidential and a trade secret of Texas | Instruments Berlin, AG | The receipt of or possession of this file does not convey | any rights to reproduce or disclose its contents or to | manufacture, use, or sell anything it may describe, in | whole, or in part, without the specific written consent of | Texas Instruments Berlin, AG. +----------------------------------------------------------------------------- | Description : Contains functionality to maintain UDP/IP and TCP/IP stacks | in parallel +----------------------------------------------------------------------------- */ #include "dcm_f.h" #include "aci_all.h" /* This flag is set if an application uses the GPF TCP/IP functionality, in case using the old UDP/IP stack this flag is set to false (default) */ static BOOL gpfTcpIpCall = FALSE; /******************************************************************************/ BOOL is_gpf_tcpip_call() { /* check to ensure that everything is configured well*/ #if !defined(FF_GPF_TCPIP) ACI_ASSERT(gpfTcpIpCall EQ FALSE); #endif return gpfTcpIpCall; } /******************************************************************************/ void set_gpf_tcpip_call() { #if !defined(FF_GPF_TCPIP) ACI_ASSERT(FALSE); #endif ACI_ASSERT(gpfTcpIpCall NEQ TRUE); gpfTcpIpCall = TRUE; } /******************************************************************************/ void reset_gpf_tcpip_call() { #if !defined(FF_GPF_TCPIP) ACI_ASSERT(FALSE); #endif /*ACI_ASSERT(gpfTcpIpCall EQ TRUE);*/ gpfTcpIpCall = FALSE; }