view src/g23m-fad/ip/ip_csf.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 :  GSM-FaD (8411)
|  Modul   :  IP_CSF
+----------------------------------------------------------------------------- 
|  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. 
+----------------------------------------------------------------------------- 
|  Purpose :  This Modul defines the custom specific functions
|             for the component Radio Link Protocol
|             of the mobile station
+----------------------------------------------------------------------------- 
*/ 

#define ENTITY_IP

/*==== INCLUDES ===================================================*/

#include <string.h>
#include "typedefs.h"
#include "pconst.cdg"
#include "vsi.h"
#include "pconst.cdg"
#include "custom.h"
#include "gsm.h"
#include "cnf_ip.h"
#include "mon_ip.h"
#include "prim.h"
#include "pei.h"
#include "tok.h"
#include "ccdapi.h"

#include "dti.h"
#include "ip.h"

/*==== EXPORT =====================================================*/

/*==== PRIVAT =====================================================*/

/*==== VARIABLES ==================================================*/

/*==== FUNCTIONS ==================================================*/
/*
+--------------------------------------------------------------------+
| PROJECT : GSM-FaD (8411)             MODULE  : IP_CSF              |
| STATE   : code                       ROUTINE : csf_init_timer      |
+--------------------------------------------------------------------+

  PURPOSE : Initialize the timer.

*/

GLOBAL BOOL csf_init_timer (void)
{
  USHORT        i;

  TRACE_FUNCTION ("csf_init_timer()");

  for (i=0; i < MAX_IP_TIMER; i++)
  {
    ip_data->lola.timer_reass_running[i % MAX_SEGM_SERVER] = FALSE;
  }
  
  TRACE_FUNCTION ("csf_init_timer() RETURN TRUE");

  return TRUE;
}

/*
+--------------------------------------------------------------------+
| PROJECT : GSM-FaD (8411)             MODULE  : IP_CSF              |
| STATE   : code                       ROUTINE : csf_close_timer     |
+--------------------------------------------------------------------+

  PURPOSE : Closes all timer of the timer pool.

*/

GLOBAL void csf_close_timer (void)
{
}

/*
+--------------------------------------------------------------------+
| PROJECT : GSM-FaD (8411)             MODULE  : IP_CSF              |
| STATE   : code                       ROUTINE : csf_stop_timer      |
+--------------------------------------------------------------------+

  PURPOSE : The function stops one timer.

*/


GLOBAL void csf_stop_timer (USHORT index)
{
  vsi_t_stop (VSI_CALLER index);
}


/*
+--------------------------------------------------------------------+
| PROJECT : GSM-FaD (8411)             MODULE  : IP_CSF              |
| STATE   : code                       ROUTINE : csf_timer_expired   |
+--------------------------------------------------------------------+

  PURPOSE : After timeout the according instance is searched. 
  
*/


GLOBAL BOOL csf_timer_expired (USHORT           index,
                               USHORT         * layer,
                               USHORT         * segm_server,
                               USHORT         * timer)
{
  if (index < MAX_IP_TIMER)
  {
    * layer       = (USHORT) (index / MAX_SEGM_SERVER);
    * segm_server = (USHORT) (index % MAX_SEGM_SERVER);
    ip_data->lola.timer_reass_running[*segm_server] = FALSE;
    * timer      = TREASSEMBLY;
		
    return TRUE;
	}

  *timer = NOT_PRESENT_16BIT;

  return FALSE;
}