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); 
}