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view src/g23m-fad/t30/t30_kers.c @ 303:f76436d19a7a default tip

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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 :  GSM-F&D (8411)
|  Modul   :  t30_kers
+----------------------------------------------------------------------------- 
|  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 T30 of the mobile station
+----------------------------------------------------------------------------- 
*/ 

#ifndef T30_KERS_C
#define T30_KERS_C
#endif

#define ENTITY_T30

#define MEMCOPLEN(d,s,c) memcpy(t30_data->hdlc_rcv.d, s, MINIMUM(t30_data->hdlc_rcv.c, NSF_LEN))

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

#include <string.h>
#include <stdlib.h>
#include <stddef.h>
#include "typedefs.h"
#include "pcm.h"
#include "vsi.h"
#include "macdef.h"
#include "pconst.cdg"
#include "mconst.cdg"
#include "message.h"
#include "ccdapi.h"
#include "custom.h"
#include "gsm.h"
#include "prim.h"
#include "cnf_t30.h"
#include "mon_t30.h"
#include "pei.h"
#include "tok.h"
#include "dti.h"      /* functionality of the dti library */
#include "t30.h"

/*==== CONST =======================================================*/
/*==== TYPES =======================================================*/
/*==== VAR EXPORT ==================================================*/
/*==== VAR LOCAL ===================================================*/
/*==== FUNCTIONS ===================================================*/

LOCAL void snd_fad_rcv_tcf_req(void)
{
  PALLOC (fad_rcv_tcf_req, FAD_RCV_TCF_REQ);
  fad_rcv_tcf_req->trans_rate = t30_data->trans_rate;
  PSENDX (FAD, fad_rcv_tcf_req);
}

LOCAL void snd_t30_cap_ind(void)
{
  PALLOC (t30_cap_ind, T30_CAP_IND);
  memcpy (&t30_cap_ind->hdlc_info, &t30_data->hdlc_rcv, sizeof(T_hdlc_info));
  memset (&t30_data->hdlc_rcv, 0, sizeof(T_hdlc_info));
  PSENDX (MMI, t30_cap_ind);
}

GLOBAL void act_on_sgn_req(void)
{
  switch (t30_data->sgn_req)
  {
  case SGN_EOM:
    SET_STATE (KER, T30_SND_SGN);
    _decodedMsg[0] = BCS_EOM;
    sig_ker_bcs_bdat_req (FINAL_YES);
    break;

  case SGN_EOP:
    SET_STATE (KER, T30_SND_SGN);
    _decodedMsg[0] = BCS_EOP;
    sig_ker_bcs_bdat_req (FINAL_YES);
    break;

  case SGN_MPS:
    SET_STATE (KER, T30_SND_SGN);
    _decodedMsg[0] = BCS_MPS;
    sig_ker_bcs_bdat_req (FINAL_YES);
    break;

  case SGN_PRI_EOM:
    SET_STATE (KER, T30_SND_SGN);
    _decodedMsg[0] = BCS_PRI_EOM;
    sig_ker_bcs_bdat_req (FINAL_YES);
    break;

  case SGN_PRI_EOP:
    SET_STATE (KER, T30_SND_SGN);
    _decodedMsg[0] = BCS_PRI_EOP;
    sig_ker_bcs_bdat_req (FINAL_YES);
    break;

  case SGN_PRI_MPS:
    SET_STATE (KER, T30_SND_SGN);
    _decodedMsg[0] = BCS_PRI_MPS;
    sig_ker_bcs_bdat_req (FINAL_YES);
    break;

  default:
    break;
  }
}

/*
+--------------------------------------------------------------------+
| PROJECT : GSM-F&D (8411)             MODULE  : T30_KERS            |
| STATE   : code                       ROUTINE : sig_bcs_ker_bdat_ind|
+--------------------------------------------------------------------+
  PURPOSE : Process signal BDAT_IND received from process BCS.
            This signal contains a received HDLC frame from FAD,
            decoded by CCD.
*/

GLOBAL void sig_bcs_ker_bdat_ind (void)
{
  TRACE_FUNCTION ("sig_bcs_ker_bdat_ind()");

  switch (GET_STATE (KER))
  {
    case T30_NULL:
#ifdef _SIMULATION_ /* test BCS formatter only */
      if (t30_data->test_mode & TST_BCS)
      {
        SHORT size = 0;
        switch (_decodedMsg[0])
        {
          case BCS_DIS:      size = sizeof(T_BCS_DIS)      ; break;
          case BCS_CSI:      size = sizeof(T_BCS_CSI)      ; break;
          case BCS_NSF:      size = sizeof(T_BCS_NSF)      ; break;
          case BCS_DTC:      size = sizeof(T_BCS_DTC)      ; break;
          case BCS_CIG:      size = sizeof(T_BCS_CIG)      ; break;
          case BCS_NSC:      size = sizeof(T_BCS_NSC)      ; break;
          case BCS_PWD_POLL: size = sizeof(T_BCS_PWD_POLL) ; break;
          case BCS_SEP:      size = sizeof(T_BCS_SEP)      ; break;
          case BCS_DCS:      size = sizeof(T_BCS_DCS)      ; break;
          case BCS_TSI:      size = sizeof(T_BCS_TSI)      ; break;
          case BCS_NSS:      size = sizeof(T_BCS_NSS)      ; break;
          case BCS_SUB:      size = sizeof(T_BCS_SUB)      ; break;
          case BCS_PWD_SND:  size = sizeof(T_BCS_PWD_SND)  ; break;
          
          case BCS_CFR:
          case BCS_FTT:
          case BCS_EOM:
          case BCS_MPS:
          case BCS_EOP:
          case BCS_PRI_EOM:
          case BCS_PRI_MPS:
          case BCS_PRI_EOP:
          case BCS_MCF:
          case BCS_RTP:
          case BCS_RTN:
          case BCS_PIP:
          case BCS_PIN:
          case BCS_DCN:
          case BCS_CRP:
            size = 1;
            break;
        }
        {
        PALLOC_SDU (dti_data_test_ind, DTI2_DATA_TEST_IND, REPORT_SIZE_BITS);
        dti_data_test_ind->link_id         = t30_data->link_id;
        dti_data_test_ind->parameters.p_id = DTI_PID_UOS;
        dti_data_test_ind->parameters.st_lines.st_flow      = DTI_FLOW_OFF;
        dti_data_test_ind->parameters.st_lines.st_line_sa   = DTI_SA_ON;
        dti_data_test_ind->parameters.st_lines.st_line_sb   = DTI_SB_ON;
        dti_data_test_ind->parameters.st_lines.st_break_len = DTI_BREAK_OFF;
        dti_data_test_ind->sdu.l_buf  = size << 3;
        dti_data_test_ind->sdu.o_buf  = 0;
        memcpy (dti_data_test_ind->sdu.buf, _decodedMsg, size);
        PSENDX (MMI, dti_data_test_ind);
        }
      }
#endif
      break;

    case T30_IDLE:
    {
      switch (_decodedMsg[0])
      {
      case BCS_CIG: TRACE_EVENT ("Rec  BCS_CIG");
        {
        MCAST (bcs_cig, BCS_CIG);
        t30_data->hdlc_rcv.c_cig = bcs_cig->c_clg_sub_nr;
        MEMCOPSIZ(t30_data->hdlc_rcv.cig, bcs_cig->clg_sub_nr);
        } 
        break;

      case BCS_CSI: TRACE_EVENT ("Rec  BCS_CSI");
        {
        MCAST (bcs_csi, BCS_CSI);
        t30_data->hdlc_rcv.c_csi = bcs_csi->c_cld_sub_nr;
        MEMCOPSIZ(t30_data->hdlc_rcv.csi, bcs_csi->cld_sub_nr);
        }
        break;

      case BCS_DCN: TRACE_EVENT ("Rec  BCS_DCN");
        SET_STATE (KER, T30_IDLE);
        TIMERSTOP (T1_INDEX);
        snd_t30_sgn_ind(SGN_DCN);
        break;

      case BCS_DIS: TRACE_EVENT ("Rec  BCS_DIS");
        {
        MCAST (bcs_dis, BCS_DIS);
        TIMERSTOP (T1_INDEX);
        ker_fill_dis_info (bcs_dis);
        t30_data->fmod    = FMOD_SND;
        t30_data->repeat  = 1;
        t30_data->dir     = 0x80;
        snd_t30_cap_ind();
        SET_STATE (KER, T30_SND_CAP);
        memset (&t30_data->hdlc_snd, 0, sizeof(T_hdlc_info));
        }
        break;

      case BCS_DTC: TRACE_EVENT ("Rec  BCS_DTC");
        {
        MCAST (bcs_dtc, BCS_DTC);
        TIMERSTOP (T1_INDEX);
        ker_fill_dtc_info (bcs_dtc);
        t30_data->fmod    = FMOD_SND;
        t30_data->repeat  = 1;
        snd_t30_cap_ind();
        SET_STATE (KER, T30_SND_CAP);
        memset (&t30_data->hdlc_snd, 0, sizeof(T_hdlc_info));
        }
        break;

      case BCS_NSC: TRACE_EVENT ("Rec  BCS_NSC");
        {
        MCAST (bcs_nsc, BCS_NSC);
        t30_data->hdlc_rcv.c_nsc = (UBYTE)(bcs_nsc->non_std_fac.l_non_std_fac >> 3);
        MEMCOPLEN(nsc, bcs_nsc->non_std_fac.b_non_std_fac, c_nsc);
        }
        break;

      case BCS_NSF: TRACE_EVENT ("Rec  BCS_NSF");
        {
        MCAST (bcs_nsf, BCS_NSF);
        t30_data->hdlc_rcv.c_nsf = (UBYTE)(bcs_nsf->non_std_fac.l_non_std_fac >> 3);
        MEMCOPLEN(nsf, bcs_nsf->non_std_fac.b_non_std_fac, c_nsf);
        }
        break;

      case BCS_PWD_POLL: TRACE_EVENT ("Rec  BCS_PWD_POLL");
        {
        MCAST (bcs_pwd_poll, BCS_PWD_POLL);
        t30_data->hdlc_rcv.c_pwd = bcs_pwd_poll->c_pm_pword;
        MEMCOPSIZ(t30_data->hdlc_rcv.pwd, bcs_pwd_poll->pm_pword);
        }
        break;

      case BCS_SEP: TRACE_EVENT ("Rec  BCS_SEP");
        {
        MCAST (bcs_sep, BCS_SEP);
        t30_data->hdlc_rcv.c_sep = bcs_sep->c_pm_sub_addr;
        MEMCOPSIZ(t30_data->hdlc_rcv.sep, bcs_sep->pm_sub_addr);
        }
        break;

      default:
        TIMERSTOP (T1_INDEX);
        snd_error_ind(ERR_PH_B_SND_COMREC_INVALID_CMD_RCVD);
        break;
      }
      break;
    }
    
    case T30_RCV_DCN:
      switch (_decodedMsg[0])
      {
      case BCS_DCN: TRACE_EVENT ("Rec  BCS_DCN");
        snd_complete_ind(CMPL_EOP);
        break;

      default:
        snd_error_ind(ERR_PH_D_RCV_INVALID_RESP_RCVD);
        SET_STATE (KER, T30_IDLE);
        break;
      }
      TIMERSTOP (T2_INDEX);
      break;

    case T30_RCV_DCS:
    {
      switch (_decodedMsg[0])
      {
      case BCS_CIG: TRACE_EVENT ("Rec  BCS_CIG");
        {
        MCAST (bcs_cig, BCS_CIG);
        t30_data->hdlc_rcv.c_cig = bcs_cig->c_clg_sub_nr;
        MEMCOPSIZ(t30_data->hdlc_rcv.cig, bcs_cig->clg_sub_nr);
        }
        break;

      case BCS_CRP: TRACE_EVENT ("Rec  BCS_CRP");
        SET_STATE (KER, T30_RCV_DIS);
        ker_send_dis ();
        break;

      case BCS_CSI: TRACE_EVENT ("Rec  BCS_CSI");
        {
        MCAST (bcs_csi, BCS_CSI);
        t30_data->hdlc_rcv.c_csi = bcs_csi->c_cld_sub_nr;
        MEMCOPSIZ(t30_data->hdlc_rcv.csi, bcs_csi->cld_sub_nr);
        }
        break;

      case BCS_DCN: TRACE_EVENT ("Rec  BCS_DCN");
        SET_STATE (KER, T30_IDLE);
        TIMERSTOP (T1_INDEX);
        TIMERSTOP (T4_INDEX);
        snd_t30_sgn_ind(SGN_DCN);
        break;

      case BCS_DCS: TRACE_EVENT ("Rec  BCS_DCS");
        {
        MCAST (bcs_dcs, BCS_DCS);
        ker_fill_dcs_info (bcs_dcs);
        }
        TIMERSTOP (T1_INDEX);
        TIMERSTOP (T4_INDEX);
        
        if (t30_data->fmod NEQ FMOD_POLL)
          t30_data->dir = 0;

        t30_data->fmod    = FMOD_RCV;
        t30_data->repeat  = 1;
        snd_t30_cap_ind();
        SET_STATE (KER, T30_RCV_TCF);
        snd_fad_rcv_tcf_req();
        break;

      case BCS_DIS: TRACE_EVENT ("Rec  BCS_DIS");
        {
        MCAST (bcs_dis, BCS_DIS);
        ker_fill_dis_info (bcs_dis);
        }
        TIMERSTOP (T1_INDEX);
        TIMERSTOP (T4_INDEX);
        t30_data->fmod    = FMOD_SND;
        t30_data->prev    = HDLC_ADDR;
        t30_data->dir     = 0x80;
        snd_t30_cap_ind();          
        SET_STATE (KER, T30_IDLE);
        break;

      case BCS_DTC: TRACE_EVENT ("Rec  BCS_DTC");
        {
        MCAST (bcs_dtc, BCS_DTC);
        ker_fill_dtc_info (bcs_dtc);
        }
        TIMERSTOP (T1_INDEX);
        TIMERSTOP (T4_INDEX);

        if (t30_data->fmod NEQ FMOD_POLL)
          t30_data->dir = 0;

        t30_data->fmod = FMOD_POLL;
        snd_t30_cap_ind();          
        SET_STATE (KER, T30_SND_CAP);
        break;

      case BCS_MPS: TRACE_EVENT ("Rec  BCS_MPS");
        switch (t30_data->prev)
        {
        case BCS_RTN:
          _decodedMsg[0] = BCS_RTN;
          SET_STATE (KER, T30_RCV_RT2);
          sig_ker_bcs_bdat_req (FINAL_YES);
          break;

        case BCS_RTP: TRACE_EVENT ("Rec  BCS_RTP");
          _decodedMsg[0] = BCS_RTP;
          SET_STATE (KER, T30_RCV_RT2);
          sig_ker_bcs_bdat_req (FINAL_YES);
          break;

        default:
          snd_error_ind(ERR_PH_B_RCV_INVALID_RESP_RCVD);
          TIMERSTOP (T1_INDEX);
          TIMERSTOP (T4_INDEX);
          SET_STATE (KER, T30_IDLE);
          break;
        }
        break;

      case BCS_NSC: TRACE_EVENT ("Rec  BCS_NSC");
        {
        MCAST (bcs_nsc, BCS_NSC);
        t30_data->hdlc_rcv.c_nsc = (UBYTE)(bcs_nsc->non_std_fac.l_non_std_fac >> 3);
        MEMCOPLEN(nsc, bcs_nsc->non_std_fac.b_non_std_fac, c_nsc);
        }
        break;

      case BCS_NSF: TRACE_EVENT ("Rec  BCS_NSF");
        {
        MCAST (bcs_nsf, BCS_NSF);
        t30_data->hdlc_rcv.c_nsf = (UBYTE)(bcs_nsf->non_std_fac.l_non_std_fac >> 3);
        MEMCOPLEN(nsf, bcs_nsf->non_std_fac.b_non_std_fac, c_nsf);
        }
        break;

      case BCS_NSS: TRACE_EVENT ("Rec  BCS_NSS");
        {
        MCAST (bcs_nss, BCS_NSS);
        t30_data->hdlc_rcv.c_nss = (UBYTE)(bcs_nss->non_std_fac.l_non_std_fac >> 3);
        MEMCOPLEN(nss, bcs_nss->non_std_fac.b_non_std_fac, c_nss);
        }
        break;

      case BCS_PWD_POLL: TRACE_EVENT ("Rec  BCS_PWD_POLL");
        {
        MCAST (bcs_pwd_poll, BCS_PWD_POLL);
        t30_data->hdlc_rcv.c_pwd = bcs_pwd_poll->c_pm_pword;
        MEMCOPSIZ(t30_data->hdlc_rcv.pwd, bcs_pwd_poll->pm_pword);
        }
        break;

      case BCS_PWD_SND: TRACE_EVENT ("Rec  BCS_PWD_SND");
        {
        MCAST (bcs_pwd_snd, BCS_PWD_SND);
        t30_data->hdlc_rcv.c_pwd = bcs_pwd_snd->c_sm_pword;
        MEMCOPSIZ(t30_data->hdlc_rcv.pwd, bcs_pwd_snd->sm_pword);
        }
        break;

      case BCS_SEP: TRACE_EVENT ("Rec  BCS_SEP");
        {
        MCAST (bcs_sep, BCS_SEP);
        t30_data->hdlc_rcv.c_sep = bcs_sep->c_pm_sub_addr;
        MEMCOPSIZ(t30_data->hdlc_rcv.sep, bcs_sep->pm_sub_addr);
        }
        break;

      case BCS_SUB: TRACE_EVENT ("Rec  BCS_SUB");
        {
        MCAST (bcs_sub, BCS_SUB);
        t30_data->hdlc_rcv.c_sub = bcs_sub->c_sub_addr;
        MEMCOPSIZ(t30_data->hdlc_rcv.sub, bcs_sub->sub_addr);
        }
        break;

      case BCS_TSI: TRACE_EVENT ("Rec  BCS_TSI");
        {
        MCAST (bcs_tsi, BCS_TSI);
        t30_data->hdlc_rcv.c_tsi = bcs_tsi->c_tra_sub_nr;
        MEMCOPSIZ(t30_data->hdlc_rcv.tsi, bcs_tsi->tra_sub_nr);
        }
        break;

      default:
        TRACE_EVENT_P1 ("Rec  %02x", _decodedMsg[0]);
        snd_error_ind(ERR_PH_B_RCV_INVALID_RESP_RCVD);
        TIMERSTOP (T1_INDEX);
        TIMERSTOP (T4_INDEX);
        SET_STATE (KER, T30_IDLE);
        break;
      }
      break;
    }

    case T30_RCV_TCF:
      switch (_decodedMsg[0])
      {
      case BCS_DCS: TRACE_EVENT ("Rec  BCS_DCS");
        TIMERSTOP (T1_INDEX);
        TIMERSTOP (T4_INDEX);

        if (t30_data->rate_modified)
          snd_fad_rcv_tcf_req();
        break;
      }
      break;

    case T30_RCV_MSG:
      switch (_decodedMsg[0])
      {
      case BCS_DCN: TRACE_EVENT ("Rec  BCS_DCN");
        snd_t30_sgn_ind(SGN_DCN);
        SET_STATE (KER, T30_IDLE);
        TIMERSTOP (T2_INDEX);
        break;

      case BCS_MPS: TRACE_EVENT ("Rec  BCS_MPS");
        TIMERSTOP (T2_INDEX);
        _decodedMsg[0] = t30_data->prev;
        SET_STATE (KER, T30_RCV_CFR);
        sig_ker_bcs_bdat_req (FINAL_YES);
        break;

      case BCS_TSI: TRACE_EVENT ("Rec  BCS_TSI");
        {
        MCAST (bcs_tsi, BCS_TSI);
        t30_data->hdlc_rcv.c_tsi = bcs_tsi->c_tra_sub_nr;
        MEMCOPSIZ(t30_data->hdlc_rcv.tsi, bcs_tsi->tra_sub_nr);
        }
        SET_STATE (KER, T30_RCV_DCS);
        break;

      default:
        snd_error_ind(ERR_PH_B_RCV_INVALID_RESP_RCVD);
        TIMERSTOP (T2_INDEX);
        SET_STATE (KER, T30_IDLE);
        break;
      }
      break;

    case T30_RCV_PST:
      TIMERSTOP (T2_INDEX);
      switch (_decodedMsg[0])
      {
      case BCS_DCN: TRACE_EVENT ("Rec  BCS_DCN");
        SET_STATE (KER, T30_IDLE);
        snd_t30_sgn_ind(SGN_DCN);
        break;

      case BCS_EOM: TRACE_EVENT ("Rec  BCS_EOM");
        t30_data->res = SGN_EOM;
        snd_t30_sgn_ind(SGN_EOM);
        break;

      case BCS_EOP: TRACE_EVENT ("Rec  BCS_EOP");
        t30_data->res = SGN_EOP;
        snd_t30_sgn_ind(SGN_EOP);
        break;

      case BCS_MPS: TRACE_EVENT ("Rec  BCS_MPS");
        t30_data->res = SGN_MPS;
        snd_t30_sgn_ind(SGN_MPS);
        break;

      case BCS_PRI_EOM: TRACE_EVENT ("Rec  BCS_PRI_EOM");
        t30_data->res = SGN_PRI_EOM;
        snd_t30_sgn_ind(SGN_PRI_EOM);
        break;

      case BCS_PRI_EOP: TRACE_EVENT ("Rec  BCS_PRI_EOP");
        t30_data->res = SGN_PRI_EOP;
        snd_t30_sgn_ind(SGN_PRI_EOP);
        break;

      case BCS_PRI_MPS: TRACE_EVENT ("Rec  BCS_PRI_MPS");
        t30_data->res = SGN_PRI_MPS;
        snd_t30_sgn_ind(SGN_PRI_MPS);
        break;

      default:
        snd_error_ind(ERR_PH_D_RCV_INVALID_RESP_RCVD);
        SET_STATE (KER, T30_IDLE);
        break;
      }
      break;

    case T30_RCV_T2:
      TIMERSTOP (T2_INDEX);
      switch (_decodedMsg[0])
      {
      case BCS_DCN: TRACE_EVENT ("Rec  BCS_DCN");
        snd_t30_sgn_ind(SGN_DCN);
        SET_STATE (KER, T30_IDLE);
        break;

      case BCS_EOM: TRACE_EVENT ("Rec  BCS_EOM");
        TIMERSTART (T2_INDEX, T2_VALUE);
        _decodedMsg[0] = BCS_MCF;
        sig_ker_bcs_bdat_req (FINAL_YES);
        break;

      default:
        snd_error_ind(ERR_PH_D_RCV_INVALID_RESP_RCVD);
        SET_STATE (KER, T30_IDLE);
        break;
      }
      break;

    case T30_SND_CFR:
      switch (_decodedMsg[0])
      {
      case BCS_CFR: TRACE_EVENT ("Rec  BCS_CFR");
        TIMERSTOP (T4_INDEX);
        SET_STATE (KER, T30_SND_MSG);
        t30_data->mux.mode = MUX_MSG;
        sig_ker_mux_mux_req ();
        snd_t30_phase_ind(MSG_PHASE);
        break;

      case BCS_CIG: TRACE_EVENT ("Rec  BCS_CIG");
        {
        MCAST (bcs_cig, BCS_CIG);
        t30_data->hdlc_rcv.c_cig = bcs_cig->c_clg_sub_nr;
        MEMCOPSIZ(t30_data->hdlc_rcv.cig, bcs_cig->clg_sub_nr);
        }
        break;

      case BCS_CRP: TRACE_EVENT ("Rec  BCS_CRP");
        TIMERSTOP (T4_INDEX);
        t30_data->repeat++;
        SET_STATE (KER, T30_SND_CAP);
        snd_t30_sgn_ind(SGN_CRP);
        break;

      case BCS_CSI: TRACE_EVENT ("Rec  BCS_CSI");
        {
        MCAST (bcs_csi, BCS_CSI);
        t30_data->hdlc_rcv.c_csi = bcs_csi->c_cld_sub_nr;
        MEMCOPSIZ(t30_data->hdlc_rcv.csi, bcs_csi->cld_sub_nr);
        }
        break;

      case BCS_DCN: TRACE_EVENT ("Rec  BCS_DCN");
        SET_STATE (KER, T30_IDLE);
        TIMERSTOP (T4_INDEX);
        snd_t30_sgn_ind(SGN_DCN);
        break;

      case BCS_DIS: TRACE_EVENT ("Rec  BCS_DIS");
        TIMERSTOP (T4_INDEX);

        if (t30_data->repeat++ EQ 3)
        {
          snd_error_ind(ERR_PH_B_SND_DIS_DTC_RCVD_3_TIMES);
          SET_STATE (KER, T30_IDLE);
        }
        else
        {
          MCAST (bcs_dis, BCS_DIS);
          ker_fill_dis_info (bcs_dis);
          t30_data->fmod = FMOD_SND;
          snd_t30_cap_ind();          
          SET_STATE (KER, T30_SND_CAP);
        }
        memset (&t30_data->hdlc_snd, 0, sizeof(T_hdlc_info));
        break;

      case BCS_DTC: TRACE_EVENT ("Rec  BCS_DTC");
        TIMERSTOP (T4_INDEX);
        if (t30_data->repeat++ EQ 3)
        {
          snd_error_ind(ERR_PH_B_SND_DIS_DTC_RCVD_3_TIMES);
          SET_STATE (KER, T30_IDLE);
        }
        else
        {
          MCAST (bcs_dtc, BCS_DTC);
          ker_fill_dtc_info (bcs_dtc);
          t30_data->fmod = FMOD_POLL;
          snd_t30_cap_ind();          
          SET_STATE (KER, T30_SND_CAP);
        }
        memset (&t30_data->hdlc_snd, 0, sizeof(T_hdlc_info));
        break;

      case BCS_FTT: TRACE_EVENT ("Rec  BCS_FTT");
        TIMERSTOP (T4_INDEX);
        SET_STATE (KER, T30_SND_CAP);
        snd_t30_sgn_ind(SGN_FTT);
        break;

      case BCS_NSC: TRACE_EVENT ("Rec  BCS_NSC");
        {
        MCAST (bcs_nsc, BCS_NSC);
        t30_data->hdlc_rcv.c_nsc = (UBYTE)(bcs_nsc->non_std_fac.l_non_std_fac >> 3);
        MEMCOPLEN(nsc, bcs_nsc->non_std_fac.b_non_std_fac, c_nsc);
        }
        break;

      case BCS_NSF: TRACE_EVENT ("Rec  BCS_NSF");
        {
        MCAST (bcs_nsf, BCS_NSF);
        t30_data->hdlc_rcv.c_nsf = (UBYTE)(bcs_nsf->non_std_fac.l_non_std_fac >> 3);
        MEMCOPLEN(nsf, bcs_nsf->non_std_fac.b_non_std_fac, c_nsf);
        }
        break;

      default:
        snd_error_ind(ERR_PH_B_SND_INVALID_RESP_RCVD);
        TIMERSTOP (T4_INDEX);
        SET_STATE (KER, T30_IDLE);
        break;
      }
      break;
    
    case T30_SND_MCF:
      switch (_decodedMsg[0])
      {
      case BCS_CRP: TRACE_EVENT ("Rec  BCS_CRP");
        if (t30_data->repeat EQ 3)
        {
          snd_error_ind(ERR_PH_D_SND_RSPREC);
          SET_STATE (KER, T30_DCN);
          _decodedMsg[0] = BCS_DCN;
          sig_ker_bcs_bdat_req (FINAL_YES);
        }
        else
        {
          t30_data->repeat++;
          act_on_sgn_req();
        }
        break;

      case BCS_DCN: TRACE_EVENT ("Rec  BCS_DCN");
        SET_STATE (KER, T30_IDLE);
        TIMERSTOP (T4_INDEX);
        snd_t30_sgn_ind(SGN_DCN);
        break;

      case BCS_MCF: TRACE_EVENT ("Rec  BCS_MCF");
        switch (t30_data->sgn_req)
        {
        case SGN_EOM:
          TIMERSTOP (T1_INDEX);
          TIMERSTOP (T4_INDEX);
          snd_complete_ind(CMPL_EOM);
          break;

        case SGN_EOP:
          TIMERSTOP (T4_INDEX);
          _decodedMsg[0] = BCS_DCN;
          SET_STATE (KER, T30_SND_DCN);
          sig_ker_bcs_bdat_req (FINAL_YES);
          break;

        case SGN_MPS:
          TIMERSTOP (T4_INDEX);
          SET_STATE (KER, T30_SND_MSG);
          t30_data->mux.mode = MUX_MSG;
          sig_ker_mux_mux_req ();
          snd_t30_phase_ind(MSG_PHASE);
          break;

        default:
          break;
        }
        break;

      case BCS_PIN: TRACE_EVENT ("Rec  BCS_PIN");
        TIMERSTOP (T4_INDEX);
        SET_STATE (KER, T30_SND_PI);
        snd_t30_sgn_ind(SGN_PIN);
        break;

      case BCS_PIP: TRACE_EVENT ("Rec  BCS_PIP");
        TIMERSTOP (T4_INDEX);
        SET_STATE (KER, T30_SND_PI);
        snd_t30_sgn_ind(SGN_PIP);
        break;

      case BCS_RTN: TRACE_EVENT ("Rec  BCS_RTN");
        TIMERSTOP (T4_INDEX);
        switch (t30_data->sgn_req)
        {
        case SGN_EOM:
          SET_STATE (KER, T30_IDLE);
          snd_t30_sgn_ind(SGN_RTN);
          break;

        case SGN_EOP:
        case SGN_MPS:
          SET_STATE (KER, T30_SND_CAP);
          snd_t30_sgn_ind(SGN_RTN);
          break;

        default:
          snd_error_ind(ERR_PH_D_SND_UNSPEC);
          SET_STATE (KER, T30_DCN);
          _decodedMsg[0] = BCS_DCN;
          sig_ker_bcs_bdat_req (FINAL_YES);
          break;
        }
        break;

      case BCS_RTP: TRACE_EVENT ("Rec  BCS_RTP");
        TIMERSTOP (T4_INDEX);
        switch (t30_data->sgn_req)
        {
        case SGN_EOM:
          SET_STATE (KER, T30_IDLE);
          snd_t30_sgn_ind(SGN_RTP);
          break;

        case SGN_EOP:
          _decodedMsg[0] = BCS_DCN;
          SET_STATE (KER, T30_SND_DCN);
          sig_ker_bcs_bdat_req (FINAL_YES);
          break;

        case SGN_MPS:
          SET_STATE (KER, T30_SND_CAP);
          snd_t30_sgn_ind(SGN_RTP);
          break;

        default:
          snd_error_ind(ERR_PH_D_SND_UNSPEC);
          SET_STATE (KER, T30_DCN);
          _decodedMsg[0] = BCS_DCN;
          sig_ker_bcs_bdat_req(FINAL_YES);
          break;
        }
        break;

      default:
        TIMERSTOP (T4_INDEX);
        switch (t30_data->sgn_req)
        {
        case SGN_EOM: case SGN_PRI_EOM:
          snd_error_ind(ERR_PH_D_SND_INVALID_RESP_TO_EOM);
          break;

        case SGN_EOP: case SGN_PRI_EOP:
          snd_error_ind(ERR_PH_D_SND_INVALID_RESP_TO_EOP);
          break;

        case SGN_MPS: case SGN_PRI_MPS:
          snd_error_ind(ERR_PH_D_SND_INVALID_RESP_TO_MPS);
          break;

        default:
          snd_error_ind(ERR_PH_D_SND_UNSPEC);
          break;
        }
        SET_STATE (KER, T30_DCN);
        _decodedMsg[0] = BCS_DCN;
        sig_ker_bcs_bdat_req (FINAL_YES);
        break;
      }
      break;

    default:
      break;
  }
}

/*
+--------------------------------------------------------------------+
| PROJECT : GSM-F&D (8411)             MODULE  : T30_KERS            |
| STATE   : code                       ROUTINE : sig_msg_ker_mdat_ind|
+--------------------------------------------------------------------+
  PURPOSE : Process signal MDAT_IND received from process BCS.
            The signal contains a fax data block which is passed to DTI.
*/
GLOBAL void sig_msg_ker_mdat_ind (T_FAD_DATA_IND *fad_data_ind)
{
  TRACE_FUNCTION ("sig_msg_ker_mdat_ind()");
  switch (GET_STATE (KER))
  {
    case T30_RCV_DAT:
      if (fad_data_ind->final)
      {
        TIMERSTART (T2_INDEX, MSG_VALUE);
        SET_STATE (KER, T30_RCV_RDYF);
      }
      else
      {
        SET_STATE (KER, T30_RCV_RDY);
      }
      prepare_dti_data_ind(fad_data_ind);
      snd_dti_data_ind(&t30_data->dti_data_ind);
      break;

    case T30_RCV_DATW:
      if (fad_data_ind->final)
      {
        TIMERSTART (T2_INDEX, MSG_VALUE);
        SET_STATE (KER, T30_RCV_RDYF);
      }
      else
      {
        TIMERSTOP (T2_INDEX);
        SET_STATE (KER, T30_RCV_RDY);
      }
      prepare_dti_data_ind(fad_data_ind);
      snd_dti_data_ind(&t30_data->dti_data_ind);
      break;

    case T30_RCV_MSG:
    case T30_RCV_MSGW:
      if (fad_data_ind->final)
      {
        TIMERSTART (T2_INDEX, MSG_VALUE);
        SET_STATE (KER, T30_RCV_RDYF);
      }
      prepare_dti_data_ind(fad_data_ind);
      break;

    case T30_RCV_RDY:
      prepare_dti_data_ind(fad_data_ind);
      break;

    default:
      TRACE_EVENT("ERROR: FAD_DATA_IND in wrong KER state");
      break;
  }
}

/*
+--------------------------------------------------------------------+
| PROJECT : GSM-F&D (8411)             MODULE  : T30_KERS            |
| STATE   : code                       ROUTINE : sig_bcs_ker_err_ind |
+--------------------------------------------------------------------+
  PURPOSE : Process signal ERR_IND received from process BCS.
            This signal contains an error message from the BCS formatter.
*/
GLOBAL void sig_bcs_ker_err_ind (UBYTE cause)
{
  const char tab[8][25] =
  {
    "",
    "BUF_FULL",
    "CCD_DEC",
    "CCD_ENC",
    "FCS",
    "FINAL",
    "FRAME_NO_FLAG",
    "FRAME_TOO_MANY_FRAMES"
  };

  TRACE_FUNCTION ("sig_bcs_ker_err_ind()");
  TRACE_EVENT_P2("*** BCS error cause = %d, %s", cause, tab[cause]);

  switch (GET_STATE (KER))
  {
    case T30_SND_CFR:
    {
      switch (cause)
      {
      case ERR_FCS:
      {
        TIMERSTOP (T4_INDEX);
        t30_data->repeat++;
        SET_STATE (KER, T30_SND_CAP);
        snd_t30_sgn_ind(SGN_FCS_ERR);
        break;
      }
      default:
        break;
      }
      break ;
    }
    case T30_SND_MCF:
      switch (cause)
      {
      case ERR_FCS:
        if (t30_data->repeat EQ 3)
        {
          snd_error_ind(ERR_PH_D_SND_RSPREC);
          SET_STATE (KER, T30_DCN);
          _decodedMsg[0] = BCS_DCN;
          sig_ker_bcs_bdat_req (FINAL_YES);
        }
        break;

      default:
        t30_data->repeat++;
        act_on_sgn_req();
        break;
      }
      break;

    default:
      break;
  }
}
#undef MEMCOPLEN