FreeCalypso > hg > fc-tourmaline
view src/g23m-aci/gdd_dio/gdd_sys.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 : +----------------------------------------------------------------------------- | Copyright 2004 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 : Implementation of the GDD system interface +----------------------------------------------------------------------------- */ #define GDD_SYS_C /*==== INCLUDES =============================================================*/ #include <string.h> #include <stdlib.h> #include <stddef.h> #include "typedefs.h" #include "pcm.h" #include "vsi.h" #include "custom.h" #include "gsm.h" #include "gdd_dio.h" #include "gdd_sys.h" /*==== DEFINITIONS===========================================================*/ #ifdef GDD_DIO_USE_EXTERNAL_MEM_POOL #define EXT_ALLOC(S) (void*)vsi_m_new(S,ExtGroupHandle FILE_LINE_MACRO) #define EXT_FREE(P) vsi_m_free((T_VOID_STRUCT **)&P FILE_LINE_MACRO) /* Handle to external memory pool dediated to GDD_SYS */ T_HANDLE ExtGroupHandle = 3; #endif /* GDD_DIO_USE_EXTERNAL_MEM_POOL */ /*==== TYPES ================================================================*/ /*==== PROTOTYPES ===========================================================*/ /*==== GLOBAL VARS ==========================================================*/ /*==== LOCAL FUNCTIONS=======================================================*/ /*==== EXPORTED FUNCTIONS====================================================*/ void * gdd_sys_mem_malloc(int size) { void * p; TRACE_USER_CLASS_P1(TC_SYS_INTERFACE, "[GDD] gdd_sys_mem_malloc(size=%d)", size); #ifdef GDD_DIO_USE_EXTERNAL_MEM_POOL p = EXT_ALLOC(size); #else /* GDD_DIO_USE_EXTERNAL_MEM_POOL */ p = M_ALLOC(size); #endif /* GDD_DIO_USE_EXTERNAL_MEM_POOL */ TRACE_USER_CLASS_P1(TC_SYS_INTERFACE, "[GDD] allocated buffer: 0x%4x", p); return p; } void gdd_sys_mem_free(void * p) { TRACE_USER_CLASS_P1(TC_SYS_INTERFACE, "[GDD] gdd_sys_mem_free(p=0x%4x)", p); #ifdef GDD_DIO_USE_EXTERNAL_MEM_POOL EXT_FREE(p); #else /* GDD_DIO_USE_EXTERNAL_MEM_POOL */ M_FREE(p); #endif /* GDD_DIO_USE_EXTERNAL_MEM_POOL */ } T_GDD_SEM gdd_sys_sem_open(char * name, unsigned short count) { TRACE_USER_CLASS_P2(TC_SYS_INTERFACE, "[GDD] gdd_sys_sem_open(name=%s, count=%d)", name, count); return vsi_s_open(VSI_CALLER name, count); } int gdd_sys_sem_close(T_GDD_SEM sem) { TRACE_USER_CLASS_P1(TC_SYS_INTERFACE, "[GDD] gdd_sys_sem_close(sem=%d)", sem); return vsi_s_close(VSI_CALLER sem); } int gdd_sys_sem_down(T_GDD_SEM sem) { TRACE_USER_CLASS_P1(TC_SYS_INTERFACE, "[GDD] gdd_sys_sem_down(sem=%d)", sem); return vsi_s_get(VSI_CALLER sem); } int gdd_sys_sem_up(T_GDD_SEM sem) { TRACE_USER_CLASS_P1(TC_SYS_INTERFACE, "[GDD] gdd_sys_sem_up(sem=%d)", sem); return vsi_s_release(VSI_CALLER sem); } int gdd_sys_sem_status(T_GDD_SEM sem, /*out*/ unsigned short * count) { TRACE_USER_CLASS_P1(TC_SYS_INTERFACE, "[GDD] gdd_sys_sem_status(sem=%d)", sem); return vsi_s_status(VSI_CALLER sem, count); }