view src/g23m-fad/rlp/rlp_rcvs.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
line wrap: on
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/* 
+----------------------------------------------------------------------------- 
|  Project :  CSD (8411)
|  Modul   :  Rlp_rcvs.c
+----------------------------------------------------------------------------- 
|  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 functions for processing
|             of incomming signals for the component
|             Radio Link Protocol of the base station
+----------------------------------------------------------------------------- 
*/ 

#ifndef RLP_RCVS_C
#define RLP_RCVS_C
#endif

#define ENTITY_RLP

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

#include <string.h>
#include "typedefs.h"
#include "vsi.h"
#include "macdef.h"
#include "custom.h"
#include "gsm.h"
#include "cus_rlp.h"
#include "prim.h"
#include "tok.h"
#include "rlp.h"

/*==== COnsT =======================================================*/

/*==== TYPES =======================================================*/

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

/*==== VAR LOCAL ===================================================*/

/*==== FUNCTIONS ===================================================*/

LOCAL void sig_rcv_ker_ui_ind(void)
{
  TRACE_FUNCTION ("sig_rcv_ker_ui_ind()");

  switch (GET_STATE (KER))
  {
    case RLP_ADM_AND_DETACHED:
      /*
       * processing for state RLP_ADM_AND_DETACHED
       */
      break; 

    default:
    {
#ifdef _TARGET_
      USHORT  sduSize = rlp_data->ker.FrameSize<<3;
#else
      USHORT  sduSize = (rlp_data->ker.FrameSize + 3)<<3;
#endif
      /*
       * processing for any other kernel state
       */
      PALLOC_SDU (rlp_ui_ind, RLP_UI_IND, sduSize);

      rlp_ui_ind->sdu.o_buf = 0;
      rlp_ui_ind->sdu.l_buf = sduSize;

      ker_copy_frame_to_sdu
      (
        rbm_get_current_frame (),
        &rlp_ui_ind->sdu
      );
      /*
       * clear the RLP header
       */
      memset (&rlp_ui_ind->sdu.buf[0], 0, HEADER_LEN); /*lint !e419 ( Apparent data overrun for function 'memset')*/
      
#ifdef _SIMULATION_ /* for test purpose clear the CRC trailer */
      memset (&rlp_ui_ind->sdu.buf[(sduSize>>3)-3], 0, 3); 
#endif
      
      PSENDX (L2R, rlp_ui_ind); 
      break;
    }
  }
}

/*
+------------------------------------------------------------------------------
|  Function    : sig_ker_rcv_rawdata_res
+------------------------------------------------------------------------------
|  Description : Process signal SIG_RAWDATA_RES received
|                from process kernel.
|
|
|  Parameters  : pduType -
|                cBit    -
|                pFBit   -
|                nr      -
|                ns      -
|                crc     -
|                 
|
|  Return      : -
+------------------------------------------------------------------------------
*/


GLOBAL void sig_ker_rcv_rawdata_res 
            (
              T_PDU_TYPE  pduType,
              T_BIT       cBit,
              T_BIT       pFBit,
              T_FRAME_NUM nr,
              T_FRAME_NUM ns,
              BOOL        crc
            )
{
  TRACE_FUNCTION ("sig_ker_rcv_rawdata_res()");

  if (GET_STATE(RCV) NEQ RPDU_WAIT_FOR_A_BLOCK OR crc EQ FALSE)
    return;
  
  switch (pduType)
  {
  case PDU_SABM:
    if (cBit NEQ 0 AND pFBit NEQ 0)
      sig_rcv_ker_sabm_ind ();
   break;

  case PDU_DISC:
    if (cBit NEQ 0)
      sig_rcv_ker_disc_ind (pFBit);
    break;

  case PDU_UA:
    if (cBit EQ 0)
      sig_rcv_ker_ua_ind (pFBit);
    break;

  case PDU_DM:
    if (cBit EQ 0)
      sig_rcv_ker_dm_ind (pFBit);
    break;

  case PDU_TEST:
    sig_rcv_ker_test_ind (cBit, pFBit);
    break;

  case PDU_XID:
    sig_rcv_ker_xid_ind (cBit, pFBit);
    break;

  case PDU_UI:
    sig_rcv_ker_ui_ind ();
    break;

  case PDU_RR_I:
    sig_rcv_ker_rr_i_ind (cBit, pFBit, nr, ns);
    break;

  case PDU_RNR_I:
    sig_rcv_ker_rnr_i_ind (cBit, pFBit, nr, ns);
    break;

  case PDU_SREJ_I:
    sig_rcv_ker_srej_i_ind (cBit, pFBit, nr, ns);
    break;

  case PDU_REJ_I:
    sig_rcv_ker_rej_i_ind (cBit, pFBit, nr, ns);
    break;

  case PDU_RR:
    sig_rcv_ker_rr_ind (cBit, pFBit, nr);
    break;

  case PDU_RNR:
    sig_rcv_ker_rnr_ind (cBit, pFBit, nr);
    break;

  case PDU_SREJ:
    sig_rcv_ker_srej_ind (cBit, pFBit, nr);
    break;

  case PDU_REJ:
    sig_rcv_ker_rej_ind (cBit, pFBit, nr);
    break;

  case PDU_REMAP:
    if (cBit EQ 0 AND pFBit EQ 0)
      sig_rcv_ker_remap_ind ();
    break;

  default: /* ignore block */
    break;
  }
}