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view src/g23m-fad/rlp/rlp_sndf.c @ 268:f2e52cab0a73

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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
line source

/* 
+----------------------------------------------------------------------------- 
|  Project :  CSD (8411)
|  Modul   :  Rlp_sndf.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 procedures and functions for
|             the component Radio Link Protocol of the base station 
+----------------------------------------------------------------------------- 
*/ 


#ifndef RLP_SNDF_C
#define RLP_SNDF_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"

#ifdef _TARGET_
  #include "ra_l1int.h"
#endif

/*==== CONST =======================================================*/

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

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

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

/*
+------------------------------------------------------------------------------
|  Function    : snd_sendDataToRA
+------------------------------------------------------------------------------
|  Description : send a RA_DATA_REQ primitive to RA. In the implementation
|                this function uses the functional interface of the
|                RA-Adaptation layer to pass the primitive to RA.
|
|
|  Parameters  : dataDesc
|                 
|
|  Return      : -
+------------------------------------------------------------------------------
*/


LOCAL void snd_sendDataToRA(T_FRAME_DESC *dataDesc)
{
#ifdef _SIMULATION_

  UBYTE  i, j;
  USHORT sduLen = (dataDesc->Len[0]+dataDesc->Len[1]+3)<<3;
  
  PALLOC_SDU (ra_data_req, RA_DATA_REQ, sduLen);

  TRACE_FUNCTION ("snd_sendDataToRA()");

  ra_data_req->fr_type   = FR_RLP;
  ra_data_req->dtx_flg   = DTX_DIS;
  ra_data_req->sdu.l_buf = sduLen;
  ra_data_req->sdu.o_buf = 0;
  
  j=0;

  for (i=0; i < dataDesc->Len[0]; i++)
    ra_data_req->sdu.buf[j++] = dataDesc->Adr[0][i]; 

  for (i=0; i < dataDesc->Len[1]; i++)
    ra_data_req->sdu.buf[j++] = dataDesc->Adr[1][i]; 
  
  ra_data_req->sdu.buf[rlp_data->snd.FrameSize - TRAILER_LEN]     = 0x4f;
  ra_data_req->sdu.buf[rlp_data->snd.FrameSize - TRAILER_LEN + 1] = 0x4f;
  ra_data_req->sdu.buf[rlp_data->snd.FrameSize - TRAILER_LEN + 2] = 0x4f;

#ifdef TRACE_RLP_FRAME
  if (rlp_data->uplink_frame_trace)
  {
    ker_trace_rlp_frame((T_RLP_FRAMEPTR)ra_data_req->sdu.buf);
  }
#endif

  PSENDX (RA, ra_data_req);

#else /* _TARGET_ */
  /*
   * use functional interface of RA
   */
  T_RA_DATA_REQ RA_data_req;

  RA_data_req.fr_type  = FR_RLP;
  RA_data_req.dtx_flg  = DTX_DIS;
  RA_data_req.status   = 0;

#ifdef TRACE_RLP_FRAME
  if (rlp_data->uplink_frame_trace)
  {
    ker_trace_rlp_frame((T_RLP_FRAMEPTR)datadesc->Adr[0]);
  }
#endif

  l1i_ra_data_req (&RA_data_req, dataDesc);

#endif /* _TARGET_ */
}

/*
+------------------------------------------------------------------------------
|  Function    : snd_init
+------------------------------------------------------------------------------
|  Description : initialise the rlp data for the send formatter process
|
|  Parameters  : 
|                 
|
|  Return      : 
+------------------------------------------------------------------------------
*/


GLOBAL void snd_init(T_SND *snd)
{
  USHORT i;

  TRACE_FUNCTION ("snd_init()");
  
  /*
   * initialize the header only frame descriptor
   */
  snd->HO_FrameDesc.Adr[0] = snd->HO_Frame;
  snd->HO_FrameDesc.Len[0] = FRAME_SIZE_LONG;
  snd->HO_FrameDesc.Adr[1] = NULL;
  snd->HO_FrameDesc.Len[1] = 0;
  
/*  memset (rlp_data->snd.HO_Frame, 0x2b, FRAME_SIZE_LONG); */

  for (i = 2; i < FRAME_SIZE_LONG; i++)
  {
    snd->HO_Frame[i] = 0x41 + i;
  }
  INIT_STATE (SND, SPDU_WAIT_EVENT);
}

/*
+------------------------------------------------------------------------------
|  Function    : snd_send_u_frame
+------------------------------------------------------------------------------
|  Description : build and send a U-Frame in uplink direction
|
|  Parameters  : frameType -
|                pFBit     -
|                crBit     -
|                dataDesc  -
|                 
|
|  Return      : -
+------------------------------------------------------------------------------
*/

GLOBAL void snd_send_u_frame 
            (
              T_UF          frameType,
              T_BIT         pFBit,
              T_BIT         crBit,
              T_FRAME_DESC *dataDesc
            )
{
  UBYTE *frame;

  TRACE_FUNCTION ("snd_send_u_frame()");

  if (dataDesc EQ NULL)
    dataDesc = &rlp_data->snd.HO_FrameDesc;
  
  frame = dataDesc->Adr[0];    

  /*
   * M5-M1 Bits (16, 15-11)
   */
  frame[1] = (UBYTE) (frameType << 2);
  /*
   * P/F Bit (10) and Bit 9=1 
   */
  frame[1] |= ((pFBit << 1) | 1);
  /*
   * Bits 8-2=1111100 Bit 1 = crBit
   */
  frame[0] = (0xf8 | crBit);
 
  snd_sendDataToRA (dataDesc);
}

/*
+------------------------------------------------------------------------------
|  Function    : snd_send_s_frame
+------------------------------------------------------------------------------
|  Description : build and send a S-Frame in uplink direction
|
|  Parameters  : 
|                 
|
|  Return      : 
+------------------------------------------------------------------------------
*/


GLOBAL void snd_send_s_frame 
            (
              T_SF          frameType,
              T_FRAME_NUM   nr,
              T_BIT         pFBit,
              T_BIT         crBit,
              T_FRAME_DESC *dataDesc
            )
{
  UBYTE *frame;

  TRACE_FUNCTION ("snd_send_s_frame()");

  if (dataDesc EQ NULL)
    dataDesc = &rlp_data->snd.HO_FrameDesc;
 
  frame = dataDesc->Adr[0];    
  /*
   * N(R) Bits (16-11)
   */
  frame[1] = (UBYTE) (nr << 2);
  /*
   * P/F Bit (10) and Bit 9=1 
   */
  frame[1] |= ((pFBit << 1) | 1);
  /*
   * Bits 8-4=11111, Bits 3-2 = frameType, Bit 1 = crBit
   */
  frame[0] = (0xf0 | (frameType << 1) | crBit);
   
  snd_sendDataToRA (dataDesc);
}

/*
+------------------------------------------------------------------------------
|  Function    : snd_send_si_frame
+------------------------------------------------------------------------------
|  Description : build and send a S+I-Frame in uplink direction
|
|  Parameters  : frameType  -
|                nr         -
|                pFBit      -
|                ns         -
|                crBit      -
|                dataDesc   -
|  
|  Return      : -
+------------------------------------------------------------------------------
*/


GLOBAL void snd_send_si_frame 
            (
              T_SF          frameType,
              T_FRAME_NUM   nr,
              T_BIT         pFBit,
              T_FRAME_NUM   ns,
              T_BIT         crBit,
              T_FRAME_DESC *dataDesc
            )
{
  UBYTE  *frame;

  TRACE_FUNCTION ("snd_send_si_frame()");

  if (dataDesc EQ NULL)
    dataDesc = &rlp_data->snd.HO_FrameDesc;
  
  frame = dataDesc->Adr[0];    

  /*
   * N(R) Bits (16-11)
   */
  frame[1] = (UBYTE) (nr << 2);
  /*
   * P/F Bit (10) and Bit 9=ns(bit 0-4) 
   */
  frame[1] |= ((pFBit << 1) | (ns >> 5));
  /*
   * Bits 8-4 = ns (bits 4-0), Bits 3-2 = frameType, Bit 1 = crBit
   */
  frame[0] = ((ns << 3) | (frameType << 1) | crBit);
   
  snd_sendDataToRA (dataDesc);
}