FreeCalypso > hg > fc-tourmaline
view src/gpf/frame/frm_ext.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 | 4e78acac3d88 |
children |
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/* +------------------------------------------------------------------------------ | File: frm_ext.h +------------------------------------------------------------------------------ | Copyright 2005 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. +----------------------------------------------------------------------------- | Purpose : This module provides functionality for the Frame Extension | Interface. +----------------------------------------------------------------------------- */ #ifndef __FRM_EXT_C__ #define __FRM_EXT_C__ /*==== INCLUDES ===================================================*/ #include <stdio.h> #include <string.h> #include "typedefs.h" #include "os.h" #include "vsi.h" #include "frame.h" #include "tools.h" #include "frm_defs.h" #include "frm_types.h" #include "frm_glob.h" #include "p_mem.h" #include "frm_ext.h" /*==== TYPES ================================================================*/ /*==== PROTOTYPES ===============================================================*/ void fei_lemu_SendToQueue_init ( void ); void fei_lemu_SendToQueue_register(int(* func)(OS_HANDLE SndComHandle, OS_HANDLE RcvComHandle, OS_HANDLE RcvQHandle, USHORT Prio, ULONG Suspend, OS_QDATA *Msg ), ULONG ret_ok); /*==== MACROS ================================================================*/ #define LEMU_SENDTOQUEUE_INITIALIZED 0xaffedead /*==== VARIABLES ==================================================*/ #ifndef _TOOLS_ #ifndef RUN_INT_RAM T_lemu_SendToQueue lemu_SendToQueue_func; #else extern T_lemu_SendToQueue lemu_SendToQueue_func; #endif #endif /*==== FUNCTIONS ==================================================*/ #ifndef _TOOLS_ #ifndef RUN_INT_RAM /* +------------------------------------------------------------------------------ | Function : fei_lemu_SendToQueue_register +------------------------------------------------------------------------------ | Description : register the lemu_SendToQueue function. | | Parameters : func - pointer to API function pointer table | | Return : void +------------------------------------------------------------------------------ */ void fei_lemu_SendToQueue_register( int (* func)(OS_HANDLE SndComHandle, OS_HANDLE RcvComHandle, OS_HANDLE RcvQHandle, USHORT Prio, ULONG Suspend, OS_QDATA *Msg ), ULONG ret_ok) { lemu_SendToQueue_func.ret_ok = ret_ok; lemu_SendToQueue_func.plemu_SendToQueue = func; lemu_SendToQueue_func.magic_nr = LEMU_SENDTOQUEUE_INITIALIZED; } #endif #ifndef RUN_INT_RAM /* +------------------------------------------------------------------------------ | Function : fei_lemu_SendToQueue_init +------------------------------------------------------------------------------ | Description : initialize lemu_SendToQueue function pointer table. | | Parameters : void | | Return : void +------------------------------------------------------------------------------ */ void fei_lemu_SendToQueue_init ( void ) { if ( lemu_SendToQueue_func.magic_nr != LEMU_SENDTOQUEUE_INITIALIZED) { lemu_SendToQueue_func.ret_ok = 0; lemu_SendToQueue_func.plemu_SendToQueue = NULL; lemu_SendToQueue_func.magic_nr = 0; } } #endif #endif /* !_TOOLS_*/ #endif /* __FRM_EXT_C__ */