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!GPRS config: fix long-standing AT+COPS chance hanging bug There has been a long-standing bug in FreeCalypso going back years: sometimes in the AT command bring-up sequence of an ACI-only MS, the AT+COPS command would produce only a power scan followed by cessation of protocol stack activity (only L1 ADC traces), instead of the expected network search sequence. This behaviour was seen in different FC firmware versions going back to Citrine, and seemed to follow some law of chance, not reliably repeatable. This bug has been tracked down and found to be specific to !GPRS configuration, stemming from our TCS2/TCS3 hybrid and reconstruction of !GPRS support that was bitrotten in TCS3.2/LoCosto version. ACI module psa_mms.c, needed only for !GPRS, was missing in the TCS3 version and had to be pulled from TCS2 - but as it turns out, there is a new field in the MMR_REG_REQ primitive that needs to be set correctly, and that psa_mms.c module is the place where this initialization needed to be added.
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 08 Jun 2023 08:23:37 +0000
parents fa8dc04885d8
children
line wrap: on
line source

/*  
+----------------------------------------------------------------------------- 
|  Project :  GPRS (8441)
|  Modul   :  GRLC
+----------------------------------------------------------------------------- 
|  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 module implements primitive handler functions for service
|             GFF of entity GRLC.
+----------------------------------------------------------------------------- 
*/ 

#ifndef GRLC_GFFP_C
#define GRLC_GFFP_C
#endif

#define ENTITY_GRLC

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

#include <stdio.h>
#include "typedefs.h"    /* to get Condat data types */
#include "vsi.h"        /* to get a lot of macros */
#include "macdef.h"
#include "gprs.h"
#include "gsm.h"        /* to get a lot of macros */
#include "ccdapi.h"     /* to get CCD API */
#include "prim.h"       /* to get the definitions of used SAP and directions */
#include "message.h"
#include "grlc.h"        /* to get the global entity definitions */
#include "grlc_gfff.h" 
#include "grlc_f.h" 
#include <string.h>
#include "grlc_rus.h"
#include "grlc_rds.h"
#include "grlc_func.h"
#include "grlc_tpcs.h"
#include "grlc_meass.h"
#include "cl_rlcmac.h"
#if defined REL99 AND defined TI_PS_FF_TBF_EST_PACCH
#include "grlc_tms.h"
#endif

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

#define BITS_PER_RADIO_BLOCK 456

/*==== LOCAL VARS ===========================================================*/

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

/*==== PUBLIC FUNCTIONS =====================================================*/
/*
+------------------------------------------------------------------------------
| Function    : gff_mac_pwr_ctrl_ind
+------------------------------------------------------------------------------
| Description : Handles the primitive MAC_PWR_CTRL_IND
|
| Parameters  : *mac_pwr_ctrl_ind - Ptr to primitive payload
|
+------------------------------------------------------------------------------
*/
GLOBAL void gff_mac_pwr_ctrl_ind ( T_MAC_PWR_CTRL_IND * mac_pwr_ctrl_ind )
{ 
  TRACE_FUNCTION( "gff_mac_pwr_ctrl_ind" );
  
#if defined _TARGET_ && !defined (NTRACE)

  if( grlc_data->tpc.n_tpc_trace & M_TPC_TRACE_FUNCTION )
  {
    T_L1TEST_CALL_MPHP_POWER_CONTROL l1test_call;

    UBYTE i;
    
    l1test_call.assignment_id = ( U8 )mac_pwr_ctrl_ind->assignment_id;
    l1test_call.crc_error     =       mac_pwr_ctrl_ind->crc_error;
    l1test_call.bcch_level    = ( S8 )mac_pwr_ctrl_ind->bcch_level;

    for( i = 0; i < L1TEST_BURST_PER_BLOCK; i++ )
    {
      l1test_call.burst_level[i] = ( S8 )mac_pwr_ctrl_ind->burst_level[i];
      l1test_call.radio_freq [i] =       mac_pwr_ctrl_ind->radio_freq[i];
    }

    TRACE_MEMORY_PRIM ( hCommL1, hCommGRLC, L1TEST_CALL_MPHP_POWER_CONTROL,
                        &l1test_call, sizeof( T_L1TEST_CALL_MPHP_POWER_CONTROL ) );
  }

#endif /* #if defined _TARGET_ && !defined (NTRACE) */

  gff_clip_rxlev( &mac_pwr_ctrl_ind->bcch_level,
                  &mac_pwr_ctrl_ind->bcch_level, 1 );
  
  gff_clip_rxlev( mac_pwr_ctrl_ind->burst_level,
                  mac_pwr_ctrl_ind->burst_level, 
                  MAC_BURST_PER_BLOCK );

  sig_gff_tpc_pwr_ctrl_ind( mac_pwr_ctrl_ind );

#if defined _TARGET_ && !defined (NTRACE)

  if( grlc_data->tpc.n_tpc_trace & M_TPC_TRACE_FUNCTION )
  {
    T_L1TEST_RETURN_MPHP_POWER_CONTROL l1test_return;
    
    tpc_get_pch( &l1test_return.pch[0] );
    
    TRACE_MEMORY_PRIM ( hCommGRLC, hCommL1, L1TEST_RETURN_MPHP_POWER_CONTROL,
                        &l1test_return, sizeof( T_L1TEST_RETURN_MPHP_POWER_CONTROL ) );
  }

#endif /* #if defined _TARGET_ && !defined (NTRACE) */

} /* gff_mac_pwr_ctrl_ind() */

/*
+------------------------------------------------------------------------------
| Function    : gff_mac_data_ind
+------------------------------------------------------------------------------
| Description : Handles the primitive MAC_DATA_IND
|
| Parameters  : *mac_data_ind - Ptr to primitive payload
|
+------------------------------------------------------------------------------
*/
GLOBAL void gff_mac_data_ind ( T_MAC_DATA_IND * mac_data_ind )
{ 
  UBYTE   i;
  USHORT  rx_no;

  TRACE_FUNCTION( "mac_data_ind" );
  
  rx_no  = grlc_data->func.dl_blocks.data_ptr.rx_no;

#ifdef _SIMULATION_
  {
    /*
     * copy received primitive to grlc_data->func.mac_data_ind
     */

    TRACE_EVENT_P5("mac_data_ind fn=%ld tn= %d -> mask=%x UL_MASK=%x DL_MASK=%x"
                                                   ,mac_data_ind->fn
                                                   ,mac_data_ind->dl_data.tn
                                                   ,0x80>>mac_data_ind->dl_data.tn
                                                   ,grlc_data->ul_tn_mask
                                                   ,grlc_data->dl_tn_mask);

    grlc_data->dl_fn = mac_data_ind->fn;
    grlc_data->ul_fn = mac_data_ind->fn;
    memcpy (
            &(grlc_data->func.mac_data_ind),
            mac_data_ind,
            sizeof(T_MAC_DATA_IND));
    PFREE(mac_data_ind);
    mac_data_ind = &(grlc_data->func.mac_data_ind);
    rx_no = 1;
  }
#endif

  switch( GET_STATE( GFF ) ) 
  {
    case GFF_ACTIVE:  
#if defined REL99 AND defined TI_PS_FF_TBF_EST_PACCH
    case GFF_TWO_PHASE: 		
#endif
      {
        T_BER_IND ber_ind;

        ber_ind.num_dl_blck = 0;

        for(i=0; i< rx_no; i++)
        {
        

#ifdef _TARGET_
          {
            /*
             * copy next primitive to grlc_data->func.mac_data_ind
             */
            grlc_data->func.mac_data_ind.fn      = grlc_data->func.dl_blocks.fn;
            grlc_data->func.mac_data_ind.rx_no   = grlc_data->func.dl_blocks.data_ptr.rx_no;
            grlc_data->func.mac_data_ind.dl_data = grlc_data->func.dl_blocks.data_ptr.dl_data[i];  
            mac_data_ind = &(grlc_data->func.mac_data_ind);
          }
          
          TRACE_MEMORY_PRIM ( hCommL1, hCommGRLC, MAC_DATA_IND,
                              mac_data_ind, sizeof( T_MAC_DATA_IND ) );
          
#endif /* #ifdef _TARGET_ */

          /* 
           * In Test mode B,if there is CRC error on the payload data the MS will,
           * where required by the USF, transmit the decoded payload data. The block
           * transmitted will be a valid uplink block format.
           */
	      
          if( ( (mac_data_ind->dl_data.block_status & 0x0100) EQ 0x0000)  OR ( (grlc_data->testmode.mode EQ CGRLC_LOOP) ) )
          {
            /*
             * Only successfully decoded blocks shall be considered
             */

            if( gff_analyse_dl_data( mac_data_ind->fn, &( mac_data_ind->dl_data ) ) )
            {
              /*
               * Only blocks intended for that MS shall be considered
               */

              if( ber_ind.num_dl_blck < MAC_MAX_DL_DATA_BLCKS )
              {
                ber_ind.be_info[ber_ind.num_dl_blck].total = BITS_PER_RADIO_BLOCK;

                if( ( mac_data_ind->dl_data.block_status & 0x000F ) EQ 0x0006 )
                {
                  /* 
                   * If CS4 is used, the MS is allowed to report RXQUAL = 7,
                   * so just set the BER to 100%
                   */
                  ber_ind.be_info[ber_ind.num_dl_blck].fault =
                                                          BITS_PER_RADIO_BLOCK;
                }
                else
                {
                  ber_ind.be_info[ber_ind.num_dl_blck].fault =
                                    grlc_data->func.mac_data_ind.dl_data.d_nerr;
                }

                ber_ind.num_dl_blck++;
              }
              else
              {
                TRACE_ERROR( "be_info overflow in gff_mac_data_ind" );
              }
            }
          }
          else
          {
            TRACE_ERROR( "MAC_DATA_IND with bad CRC" );

            TRACE_BINDUMP
              ( hCommGRLC, TC_USER5,
                cl_rlcmac_get_msg_name( D_MSG_TYPE_CRC_ERROR_c, RLC_MAC_ROUTE_DL ),
                mac_data_ind->dl_data.dl_block, MAX_L2_FRAME_SIZE ); /*lint !e569*/

            /* grlc_data->nr_of_crc_errors++; */
          }
        }

        if( ber_ind.num_dl_blck NEQ 0 )
        {
           meas_sq_update( &ber_ind );
        }
      }
      break;
    default:
      /*TRACE_ERROR( "MAC_DATA_IND unexpected" );*/
      break;
  }

/*call control of asyn part TARGET DEBUGGING*/
#if defined (_TARGET_)
  grlc_data->dl_cnt_asyn = grlc_data->dl_cnt_syn;
#endif /* defined (_TARGET_) */

} /* gff_mac_data_ind() */



/*
+------------------------------------------------------------------------------
| Function    : gff_mac_ready_ind
+------------------------------------------------------------------------------
| Description : Handles the primitive MAC_READY_IND
|
| Parameters  : *mac_ready_ind - Ptr to primitive payload
|
+------------------------------------------------------------------------------
*/
GLOBAL void gff_mac_ready_ind ( T_MAC_READY_IND * mac_ready_ind )
{ 
  TRACE_FUNCTION( "mac_ready_ind" );

  /*
   * calculate the frame number from downlink call
   */
#ifdef _TARGET_
  {
    ULONG current_dl_fn;
    ULONG last_dl_fn;
    ULONG last_ul_fn;
    ULONG current_ul_fn;
    BOOL  trace_dl_gap = TRUE;

    current_dl_fn = grlc_data->func.mac_ready_ind.fn;
    last_dl_fn    = grlc_data->last_dl_fn;
    last_ul_fn    = grlc_data->last_ul_fn;

    grlc_data->func.mac_ready_ind.fn = grlc_data->ul_fn ;
    current_ul_fn                   = grlc_data->ul_fn;

    if(grlc_data->func.mac_ready_ind.last_poll_resp)
    {
      TRACE_EVENT_P5("POLL NOT SENT BY LAYER 1 fn=%ld last_poll_resp=0x%x np_fn=%ld,bs=%d,ind=%d"
                                                ,grlc_data->func.mac_ready_ind.fn
                                                ,grlc_data->func.mac_ready_ind.last_poll_resp
																								,grlc_data->next_poll_fn
																								,grlc_data->ul_poll_resp[0].block_status
																								,grlc_data->ul_poll_pos_index);
    }

    /* handle gaps*/
    if ((grlc_data->next_poll_fn EQ 2) OR (grlc_data->next_poll_fn EQ 1))
    { /* last poll is sent*/
      grlc_data->func.mac_ready_ind.last_poll_resp = 0; /* no ul gap for poll */ 
    }
    else if( grlc_data->ul_call_errors AND 
             (grlc_data->ul_fn_errors[grlc_data->ul_call_errors-1] EQ grlc_data->next_poll_fn ))
    {
      trace_dl_gap = FALSE;
      TRACE_EVENT_P7("CALL ERR:c_dl_fn=%ld l_dl_fn=%ld c_ul_fn=%ld l_ul_fn=%ld callerr=%d err_fn=%ld lp_fn=%ld",
                                                    current_dl_fn,
                                                    last_dl_fn,
                                                    current_ul_fn,
                                                    last_ul_fn,
                                                    grlc_data->ul_call_errors,
                                                    grlc_data->ul_fn_errors[grlc_data->ul_call_errors-1],
                                                    grlc_data->next_poll_fn);

      grlc_data->func.mac_ready_ind.last_poll_resp = 0xFF;
      grlc_data->next_poll_fn =2 ;
    }
    else if(current_ul_fn >= grlc_data->next_poll_fn) 
    {
      trace_dl_gap = FALSE;
      TRACE_EVENT_P6("2UL GAP NO POLL:c_dl_fn=%ld l_dl_fn=%ld c_ul_fn=%ld l_ul_fn=%ld lpr=%d lp_fn=%ld",
                                                    current_dl_fn,
                                                    last_dl_fn,
                                                    current_ul_fn,
                                                    last_ul_fn,
                                                    grlc_data->func.mac_ready_ind.last_poll_resp,
                                                    grlc_data->next_poll_fn);

      grlc_data->func.mac_ready_ind.last_poll_resp = 0xFF;
      grlc_data->next_poll_fn =2 ;
    }
    else if((grlc_data->next_poll_fn > current_ul_fn) AND (current_ul_fn < 52)) /*fn overflow*/
    {
      trace_dl_gap = FALSE;
      TRACE_EVENT_P6("3UL GAP NO POLL:c_dl_fn=%ld l_dl_fn=%ld c_ul_fn=%ld l_ul_fn=%ld lpr=%d lp_fn=%ld",
                                                    current_dl_fn,
                                                    last_dl_fn,
                                                    current_ul_fn,
                                                    last_ul_fn,
                                                    grlc_data->func.mac_ready_ind.last_poll_resp,
                                                    grlc_data->next_poll_fn);
      grlc_data->func.mac_ready_ind.last_poll_resp = 0xFF;
      grlc_data->next_poll_fn =2 ;
    }
    
    if( trace_dl_gap                           AND 
        ( ( current_dl_fn - last_dl_fn ) > 5 ) AND
        ( grlc_data->dl_cnt_syn OR grlc_data->dl_fn_store[0] OR grlc_data->dl_fn_store[1] ) )
    {
      TRACE_EVENT_P2( "DL GAP: c_dl_fn=%ld l_dl_fn=%ld", current_dl_fn, last_dl_fn );
    }
  }
#endif /* _TARGET_ */

#ifdef _SIMULATION_
  {
    /*
     * copy received primitive to grlc_data->func.mac_ready_ind
     */
    grlc_data->ul_fn = mac_ready_ind->fn;
    memcpy (
            &(grlc_data->func.mac_ready_ind),
            mac_ready_ind,
            sizeof(T_MAC_READY_IND));
    PFREE(mac_ready_ind);
  }
#endif


  mac_ready_ind = &(grlc_data->func.mac_ready_ind);

#ifdef _TARGET_

  TRACE_MEMORY_PRIM ( hCommL1, hCommGRLC, MAC_READY_IND, 
                      mac_ready_ind, sizeof( T_MAC_READY_IND ) );

#endif /* #ifdef _TARGET_ */

  /*
   * handle ta value
   */
  gff_handle_continious_ta();


  switch( GET_STATE(GFF) )
  {
    case GFF_ACTIVE:
      if(grlc_data->tfi_change NEQ TFI_CHANGE_NULL)
      {
        grlc_activate_tfi(mac_ready_ind->fn);
      }
      grlc_data->ul_poll_pos_index = 0;
      if(grlc_data->gff.rlc_status EQ RLC_STATUS_BOTH)
      {
        sig_gff_ru_mac_ready_ind(mac_ready_ind);
        sig_gff_rd_mac_ready_ind(mac_ready_ind);
      }
      else if(grlc_data->gff.rlc_status EQ RLC_STATUS_UL)
        sig_gff_ru_mac_ready_ind(mac_ready_ind);
      else if(grlc_data->gff.rlc_status EQ RLC_STATUS_DL)
        sig_gff_rd_mac_ready_ind(mac_ready_ind);
      else
      {
        TRACE_ERROR("unknown rlc status: gff active but no tbf");
      }
      break;
#if defined REL99 AND defined TI_PS_FF_TBF_EST_PACCH
    case GFF_TWO_PHASE:
      grlc_data->ul_poll_pos_index = 0;
      sig_gff_tm_mac_ready_ind_two_phase(mac_ready_ind);
      break;
#endif
    default:
      /*TRACE_ERROR( "MAC_READY_IND unexpected" );*/
      break;
  }

#if defined (_TARGET_)
  /*call control of asyn part*/
  grlc_data->ul_cnt_asyn = grlc_data->ul_cnt_syn;
#endif /* defined (_TARGET_) */


} /* gff_mac_ready_ind() */

/*
+------------------------------------------------------------------------------
| Function    : gff_l1test_call_mphp_power_control
+------------------------------------------------------------------------------
| Description : Handles the primitive L1TEST_CALL_MPHP_POWER_CONTROL
|
| Parameters  : *mphp_power_control - Ptr to primitive payload
|
+------------------------------------------------------------------------------
*/

#ifdef _SIMULATION_

GLOBAL void gff_l1test_call_mphp_power_control 
                  ( T_L1TEST_CALL_MPHP_POWER_CONTROL *call_mphp_power_control )
{ 
  PALLOC( return_mphp_power_control, L1TEST_RETURN_MPHP_POWER_CONTROL );

  maca_power_control( call_mphp_power_control->assignment_id,
                      call_mphp_power_control->crc_error,
                      call_mphp_power_control->bcch_level,
                      call_mphp_power_control->radio_freq,
                      call_mphp_power_control->burst_level,
                      return_mphp_power_control->pch );

  PSEND( hCommL1, return_mphp_power_control );

  TRACE_FUNCTION( "gff_l1test_call_mphp_power_control" );

  PFREE( call_mphp_power_control );

} /* gff_l1test_call_mphp_power_control() */

#endif /* #ifdef _SIMULATION_ */