diff g23m-gsm/cc/cc_rel.c @ 0:75a11d740a02

initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 09 Jun 2016 00:02:41 +0000
parents
children
line wrap: on
line diff
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/g23m-gsm/cc/cc_rel.c	Thu Jun 09 00:02:41 2016 +0000
@@ -0,0 +1,1230 @@
+/* 
++----------------------------------------------------------------------------- 
+|  Project :  GSM-PS (6147)
+|  Modul   :  CC_REL
++----------------------------------------------------------------------------- 
+|  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 call release
+|             of the component CC of the mobile station.
++----------------------------------------------------------------------------- 
+*/ 
+
+#ifndef CC_REL_C
+#define CC_REL_C
+
+#include "config.h"
+#include "fixedconf.h"
+#include "condat-features.h"
+
+#define ENTITY_CC
+/*==== INCLUDES ===================================================*/
+
+#include <string.h>
+#include "typedefs.h"
+#include "pcm.h"
+#include "vsi.h"
+#include "custom.h"
+#include "gsm.h"
+#include "message.h"
+#include "ccdapi.h"
+#include "prim.h"
+#include "cnf_cc.h"
+#include "mon_cc.h"
+#include "pei.h"
+#include "tok.h"
+#include "cc.h"
+#include "cc_em.h"
+
+/*==== EXPORT =====================================================*/
+
+/*==== PROTOTYPES =================================================*/
+/* Implements Measure#  8 */
+LOCAL void cc_mncc_release_ind  (T_PRIM * prim);
+/* Implements Measure#  9 */
+LOCAL void cc_mncc_release_cnf (T_PRIM * prim);
+/* Implements Measure#  41 */
+LOCAL void cc_mncc_sync_ind ( UBYTE ti, 
+                              UBYTE new_state);
+/*==== PRIVAT =====================================================*/
+
+/*==== VARIABLES ==================================================*/
+
+/*==== FUNCTIONS ==================================================*/
+
+/*
++--------------------------------------------------------------------+
+| PROJECT : GSM-PS (6147)       MODULE  : CC_REL                     |
+| STATE   : code                ROUTINE : cc_check_setup_reattempt   |
++--------------------------------------------------------------------+
+
+  PURPOSE : This function checks whether a the mobile originated setup
+            may be reattempted. This will be done for some certain
+            reasons which may indicate network failure.
+            This function is considered as a hack only
+            for networks which tend to deliver a poor quality
+            of service only (e.g. typically in China). 
+            This behaviour or the algorithm is not specified / implied 
+            by GSM but driven by customer requests and the desire
+            to have a good, working product.
+*/
+
+LOCAL void cc_check_setup_reattempt ( const T_M_CC_cc_cause *cc_cause)
+{
+  GET_INSTANCE_DATA;
+  EXTERN BOOL poor_quality_network;
+
+  TRACE_FUNCTION ("cc_check_setup_reattempt()");
+
+#ifdef  WIN32
+  /*
+   * Set poor_quality_network for test, pei_config() is the appropriate place,
+   * but this seems not to be working for some strange reasons
+   */
+  poor_quality_network = TRUE;
+#endif
+
+  /* reattempt already "running", see cc_setup_reattempt for further reasoning */
+  if (cc_data->setup_reattempt_ti NEQ NOT_PRESENT_8BIT)
+    return;
+
+  switch (cc_data->state[cc_data->index_ti])
+  {
+    case M_CC_CS_1:  /* call initiated                     */
+    case M_CC_CS_3:  /* mobile originating call proceeding */
+      cc_data->setup_attempts++;
+      if (poor_quality_network AND
+          (cc_data->setup_attempts < MAX_SETUP_ATTEMPTS) AND
+          (cc_cause->v_cause))
+      {
+        /*
+         * Mobile originated call got disconnect,
+         * max. number of setup attempts not reached.
+         * New dial attempt for certain disconnect reasons
+         */
+        switch (cc_cause->cause)
+        {
+          case M_CC_CAUSE_NO_CHAN_AVAIL:       /* #34  */
+          case M_CC_CAUSE_NETWORK_ORDER:       /* #38  */
+          case M_CC_CAUSE_TEMP_FAIL:           /* #41  */
+          case M_CC_CAUSE_SWITCH_CONGEST:      /* #42  */
+          case M_CC_CAUSE_INFO_DISCARD:        /* #43  */
+          case M_CC_CAUSE_REQ_CHAN_UNAVAIL:    /* #44  */
+          case M_CC_CAUSE_RESOURCE_UNAVAIL:    /* #47  */
+          case M_CC_CAUSE_QOS_UNAVAIL:         /* #49  */
+          case M_CC_CAUSE_BEARER_CAP_UNAVAIL:  /* #58  */
+          case M_CC_CAUSE_TIMER:               /* #102 */
+          case M_CC_CAUSE_INTERWORKING:        /* #127 */
+            /*
+             * Maybe some more causes to added here
+             * which indicate network failure
+             */
+
+            /* try setup reattempt, remember this by setting setup_reattempt_ti */
+            cc_data->setup_reattempt_ti = cc_data->ti;
+            break;
+
+          default: /* Don't try setup reattempt, no appropriate cause */
+            srv_free_stored_setup ();
+            break;
+        }
+      }
+      break;
+
+    default: /* Don't try setup reattempt in other states */
+      break;
+  }
+}
+
+/*
++--------------------------------------------------------------------+
+| PROJECT : GSM-PS (6147)       MODULE  : CC_REL                     |
+| STATE   : code                ROUTINE : cc_setup_reattempt         |
++--------------------------------------------------------------------+
+
+  PURPOSE : This function reattempts the mobile originated setup
+            for some certain reasons which may indicate network
+            failure. This function is considered as a hack only
+            for networks which tend to deliver a poor quality
+            of service only.
+
+*/
+
+LOCAL void cc_setup_reattempt (void)
+{
+  GET_INSTANCE_DATA;
+  TRACE_FUNCTION ("cc_setup_reattempt()");
+
+  if (cc_data->ti EQ cc_data->setup_reattempt_ti)
+  {
+    PALLOC (est, MMCM_ESTABLISH_REQ); /* T_MMCM_ESTABLISH_REQ */
+    est->ti    = cc_data->ti;
+    est->estcs = cc_data->estcs;
+    for_est_req (est);
+
+    cc_data->setup_reattempt_ti = NOT_PRESENT_8BIT;
+    cc_data->progress_desc[cc_data->index_ti] = NOT_PRESENT_8BIT;
+    cc_set_state (M_CC_CS_01);
+    TIMERSTART (T303, T303_VALUE);
+  }
+}
+
+/*==== VARIABLES ==================================================*/
+
+/*==== FUNCTIONS ==================================================*/
+/*
++--------------------------------------------------------------------+
+| PROJECT : GSM-PS (6147)       MODULE  : CC_REL                     |
+| STATE   : code                ROUTINE : cc_mncc_disconnect_req     |
++--------------------------------------------------------------------+
+
+  PURPOSE : Disconnection of call by the mobile side.
+
+*/
+
+GLOBAL void cc_mncc_disconnect_req (T_MNCC_DISCONNECT_REQ * disc)
+{
+  GET_INSTANCE_DATA;
+  TRACE_FUNCTION ("cc_mncc_disconnect_req()");
+
+  if ((cc_data->index_ti = srv_convert_ti (disc->ti))
+       EQ NOT_PRESENT_8BIT)
+  {
+    PFREE (disc);
+    return;
+  }
+  if (cc_data->ti EQ cc_data->setup_reattempt_ti)
+  {
+    srv_free_stored_setup ();  
+  }
+  switch (cc_data->state[cc_data->index_ti])
+  {
+    case M_CC_CS_03: /* WAIT FOR NW. INFO */
+    case M_CC_CS_05: /* CC ESTABLISHMENT CONFIRMED */
+    case M_CC_CS_06: /* RECALL PRESENT */
+      /* Forget stored CCBS setup */
+      if (cc_data->stored_ccbs_setup NEQ NULL)
+      {
+        PFREE (cc_data->stored_ccbs_setup);
+        cc_data->stored_ccbs_setup = NULL;
+      }
+
+      /* Send a (faked) MNCC_RELEASE_IND to MMI */
+      {
+        PALLOC (rel, MNCC_RELEASE_IND);
+        rel->ti    = disc->ti;
+        rel->cause = disc->cause;
+        rel->c_raw_cause = 0;
+        PSENDX (MMI, rel);
+      }
+
+      /* Send RELEASE COMPLETE to network */
+      CCD_START;
+      {
+        MCAST (rel_com, U_RELEASE_COMP);
+        cc_build_release_complete (rel_com, disc->cause);
+        for_release_complete (rel_com);
+      }
+      CCD_END;
+
+      /* Release MM connection */
+      for_rel_req ();
+
+      PFREE (disc);
+
+      /* Stop all running timers */
+      TIMERSTOP (TIMER_CC);
+
+      /* Next state is NULL */
+      cc_set_state (M_CC_CS_0);
+      break;
+
+    case M_CC_CS_01:
+    case CS_101:
+    case CS_261:
+      {
+        TIMERSTOP (TIMER_CC);
+
+        cc_reset_dtmf ();
+
+        {
+          PALLOC (rel, MNCC_RELEASE_IND);
+          rel->ti    = disc->ti;
+          rel->cause = disc->cause;
+          rel->c_raw_cause = 0;
+          PSENDX (MMI, rel);
+        }
+
+        for_rel_req ();
+        cc_set_state (M_CC_CS_0);
+        srv_use_stored_prim ();
+        PFREE (disc);
+      }
+      break;
+
+    case M_CC_CS_1:      
+    case M_CC_CS_3:
+    case M_CC_CS_4:
+    case M_CC_CS_7:
+    case M_CC_CS_8:
+    case M_CC_CS_9:
+    case M_CC_CS_10:
+    case M_CC_CS_26:
+      TIMERSTOP (TIMER_CC);
+
+      CCD_START;
+      {
+        MCAST (disconnect, U_DISCONNECT);
+        
+        cc_build_disconnect (disconnect, disc->cause,
+                             &disc->fac_inf, disc->ss_version);
+        cc_set_state (M_CC_CS_11);
+        for_disconnect (disconnect);
+      }
+      CCD_END;
+      TIMERSTART (T305, T305_VALUE);
+      PFREE (disc);
+      break;
+
+    case M_CC_CS_12: /* DISCONNECT INDICATION, this is clear collision here */
+      CCD_START;
+      {
+        MCAST (release, U_RELEASE);
+
+        cc_build_release (release, disc->cause,
+                          NULL, MNCC_SS_VER_NOT_PRES);
+        cc_set_state (M_CC_CS_19);
+        for_release (release);
+
+      }
+      CCD_END;
+      TIMERSTART (T308, T308_VALUE);
+      PFREE (disc);
+      break;
+
+    default:
+      PFREE (disc);
+      break;
+
+  }
+}
+/*
++--------------------------------------------------------------------+
+| PROJECT : GSM-PS (6147)       MODULE  : CC_REL                     |
+| STATE   : code                ROUTINE : cc_mncc_reject_req         |
++--------------------------------------------------------------------+
+
+  PURPOSE : Release of call by the mobile side by sending
+            a RELEASE COMPLETE message.
+
+*/
+
+GLOBAL void cc_mncc_reject_req (T_MNCC_REJECT_REQ * rej)
+{
+  GET_INSTANCE_DATA;
+
+  TRACE_FUNCTION ("cc_mncc_reject_req");
+
+  if ((cc_data->index_ti = srv_convert_ti (rej->ti))
+      EQ NOT_PRESENT_8BIT)
+  {
+    PFREE (rej);
+    return;
+  }
+
+  if (cc_data->ti EQ cc_data->setup_reattempt_ti)
+  {
+    srv_free_stored_setup ();
+  }
+
+  switch (cc_data->state[cc_data->index_ti])
+  {
+    case M_CC_CS_03: /* WAIT FOR NW. INFO */
+    case M_CC_CS_05: /* CC ESTABLISHMENT CONFIRMED */
+    case M_CC_CS_06: /* RECALL PRESENT */
+      /* Forget stored CCBS setup */
+      if (cc_data->stored_ccbs_setup NEQ NULL)
+      {
+        PFREE (cc_data->stored_ccbs_setup);
+        cc_data->stored_ccbs_setup = NULL;
+      }
+
+      /* Send RELEASE COMPLETE */
+      CCD_START;
+      {
+        MCAST (rel_com, U_RELEASE_COMP);
+        cc_build_release_complete (rel_com, rej->cause);
+        for_release_complete (rel_com);
+      }
+      CCD_END;
+
+      /* Release MM connection */
+      for_rel_req ();
+
+      PFREE (rej);
+
+      /* Stop all running timers */
+      TIMERSTOP (TIMER_CC);
+
+      /* Next state is NULL */
+      cc_set_state (M_CC_CS_0);
+      break;
+    default:
+      PFREE (rej);
+      break;
+  }
+}
+
+
+/*
++--------------------------------------------------------------------+
+| PROJECT : GSM-PS (6147)       MODULE  : CC_REL                     |
+| STATE   : code                ROUTINE : cc_mncc_release_req        |
++--------------------------------------------------------------------+
+
+  PURPOSE : Release of call by the mobile side.
+
+*/
+GLOBAL void cc_mncc_release_req (T_MNCC_RELEASE_REQ * rel)
+{
+  GET_INSTANCE_DATA;
+
+  TRACE_FUNCTION ("cc_mncc_release_req()");
+
+  if ((cc_data->index_ti = srv_convert_ti (rel->ti))
+      EQ NOT_PRESENT_8BIT)
+  {
+    PFREE (rel);
+    return;
+  }
+
+  if (cc_data->ti EQ cc_data->setup_reattempt_ti)
+  {
+    srv_free_stored_setup ();
+  }
+
+  switch (cc_data->state[cc_data->index_ti])
+  {
+    case M_CC_CS_12: /* DISCONNECT INDICATION */
+
+      CCD_START;
+      {
+        MCAST (release, U_RELEASE);
+
+        cc_build_release (release, rel->cause, 
+                          &rel->fac_inf, rel->ss_version);
+        cc_set_state (M_CC_CS_19);
+        for_release (release);
+
+      }
+      CCD_END;
+      TIMERSTART (T308, T308_VALUE);
+      PFREE (rel);
+      break;
+
+    default:
+      PFREE (rel);
+      break;
+
+  }
+}
+
+/*
++--------------------------------------------------------------------+
+| PROJECT : GSM-PS (6147)       MODULE  : CC_REL                     |
+| STATE   : code                ROUTINE : cc_disconnect              |
++--------------------------------------------------------------------+
+
+  PURPOSE : Processing an incoming disconnect message.
+
+*/
+
+GLOBAL void cc_disconnect (T_D_DISCONNECT * disconnect)
+{
+  GET_INSTANCE_DATA;
+
+  TRACE_FUNCTION ("cc_disconnect()");
+
+  /* The cause is in DISCONNECT a mandatory IE (given intact message) */
+  TRACE_EVENT_P1 ("DISCONNECT cause: %02x", disconnect->cc_cause.cause);
+
+  EM_CC_DISCONNECT_RECEIVED;
+
+  switch (cc_data->state[cc_data->index_ti])
+  {
+    case M_CC_CS_11: /* DISCONNECT REQUEST, this is clear collision here */
+      CCD_END;
+      CCD_START;
+      {
+        MCAST (release, U_RELEASE);
+
+        TIMERSTOP (TIMER_CC);
+        /* PATCH LE 10.04.00
+         * set disconnect collision flag
+         */ 
+        cc_data->disc_coll [cc_data->index_ti]    = TRUE;
+        /* END PATCH LE 10.04.00 */
+
+        switch (cc_data->error)
+        {
+          case M_CC_CAUSE_INVALID_MAND_INFO:
+          case M_CC_CAUSE_COND_INFO_ELEM:
+            cc_build_release (release, CAUSE_MAKE(DEFBY_STD, 
+                                                  ORIGSIDE_MS, 
+                                                  MNCC_CC_ORIGINATING_ENTITY,
+                                                  cc_data->error),
+                              NULL, MNCC_SS_VER_NOT_PRES);
+            cc_set_state (M_CC_CS_19);
+            for_release (release);
+            TIMERSTART (T308, T308_VALUE);
+            break;
+
+          default:
+            if (disconnect->v_progress) 
+            {
+              cc_data->progress_desc[cc_data->index_ti] = 
+                disconnect->progress.progress_desc;
+            }
+            cc_build_release (release, CAUSE_MAKE(DEFBY_CONDAT, 
+                                                  ORIGSIDE_MS, 
+                                                  MNCC_CC_ORIGINATING_ENTITY,
+                                                  NOT_PRESENT_8BIT),
+                              NULL, MNCC_SS_VER_NOT_PRES);
+            cc_set_state (M_CC_CS_19);
+            for_release (release);
+            TIMERSTART (T308, T308_VALUE);
+            break;
+        }
+      }
+      CCD_END;
+      break;
+
+    case M_CC_CS_12: /* DISCONNECT INDICATION */
+    case M_CC_CS_19: /* RELEASE REQUEST */
+      /* NULL (M_CC_CS_0) is handled by the formatter */
+      CCD_END;
+/* Implements Measure#  3 and streamline encoding */
+      cc_send_status (M_CC_CAUSE_MESSAGE_TYPE_INCOMPAT);
+      break;
+
+    default:
+      /* any "normal" state */
+      TIMERSTOP (TIMER_CC);
+
+      switch (cc_data->error)
+      {
+        case M_CC_CAUSE_INVALID_MAND_INFO:
+        case M_CC_CAUSE_COND_INFO_ELEM:
+          CCD_END;
+          CCD_START;
+          {
+            USHORT curr_cause; /* local variable to avoid repeated CAUSE_MAKEs for the same cause */
+
+            MCAST (release, U_RELEASE);
+            PALLOC (disc_ind, MNCC_DISCONNECT_IND);
+
+            disc_ind->ti    = cc_data->ti;
+            curr_cause = CAUSE_MAKE(DEFBY_STD, 
+                                    ORIGSIDE_MS, 
+                                    MNCC_CC_ORIGINATING_ENTITY,
+                                    cc_data->error);
+            disc_ind->cause = curr_cause; 
+            /* Setting raw_cause to empty as this is a local release
+             * of MM connection,CC is not receiving any cause value
+             * from Network
+             */
+            disc_ind->c_raw_cause = 0;
+
+            disc_ind->diagnostic = NOT_PRESENT_8BIT;
+            disc_ind->progress_desc = MNCC_PROG_NOT_PRES;
+            /* CQ 23619: get the ss diagnostic >> */
+            disc_ind->ss_diag = MNCC_SS_DIAG_NOT_PROVIDED;
+            /* CQ 23619 << */
+            PSENDX (MMI, disc_ind);
+            
+            /* Patch HM 29-Jan-02 >>> */
+            cc_build_facility_ind (MNCC_FAC_IN_DISCONNECT,
+                                   disconnect->v_facility, &disconnect->facility);
+            /* Patch HM 29-Jan-02 <<< */
+            cc_build_release (release, cc_data->error,
+                              NULL, MNCC_SS_VER_NOT_PRES);
+            cc_set_state (M_CC_CS_19);
+            for_release (release);
+            TIMERSTART (T308, T308_VALUE);
+          }
+          CCD_END;
+        break;
+
+        default:
+          if (disconnect->v_progress) 
+          {
+            cc_data->progress_desc[cc_data->index_ti] = 
+              disconnect->progress.progress_desc;
+          }
+          cc_check_setup_reattempt (&disconnect->cc_cause);
+
+          if (cc_data->ti NEQ cc_data->setup_reattempt_ti)
+          {
+            /*
+             * We don't perform setup reattempt, so send disconnect to MMI
+             */
+            USHORT curr_cause; /* local variable to avoid repeated CAUSE_MAKEs for the same cause */             
+            PALLOC (disc_ind, MNCC_DISCONNECT_IND); /* T_MNCC_DISCONNECT_IND */
+            disc_ind->ti    = cc_data->ti;
+            disc_ind->cause = curr_cause = CAUSE_MAKE(DEFBY_STD, 
+                                                      ORIGSIDE_NET, 
+                                                      MNCC_CC_ORIGINATING_ENTITY,
+                                                      disconnect->cc_cause.cause);
+            disc_ind->c_raw_cause = cc_build_cause (&disconnect->cc_cause,
+                                                     disc_ind->raw_cause);
+            disc_ind->diagnostic = NOT_PRESENT_8BIT;
+
+            if (disconnect->v_progress)
+              disc_ind->progress_desc = disconnect->progress.progress_desc;
+            else
+              disc_ind->progress_desc = MNCC_PROG_NOT_PRES;
+
+            /* Handle CCBS possible flag */
+            if ((cc_data->call_ctrl_cap.pcp NEQ 0) AND
+                (disconnect->v_allowed_actions NEQ 0) AND
+                (disconnect->allowed_actions.ccbs_act EQ M_CC_CCBS_YES))
+            {
+              /* CCBS indicated as possible by the network */
+              disc_ind->diagnostic = MNCC_DIAG_CCBS_POSSIBLE;
+            }
+            /* CQ 23619: get the ss diagnostic */
+            disc_ind->ss_diag = cc_get_ss_diag(curr_cause, disconnect);
+            /* CQ 23619 << */
+            PSENDX (MMI, disc_ind);
+            /* Patch HM 29-Jan-02 >>> */
+            cc_build_facility_ind (MNCC_FAC_IN_DISCONNECT,
+                                   disconnect->v_facility, &disconnect->facility);            
+            /* Patch HM 29-Jan-02 <<< */
+          }
+          if ((cc_data->ti NEQ cc_data->setup_reattempt_ti) AND
+              (((disconnect->v_progress AND
+                (disconnect->progress.progress_desc EQ M_CC_PROG_INBAND_AVAIL) AND
+                (cc_data->channel_mode != NAS_CHM_SIG_ONLY)))
+              OR
+              ((cc_data->call_ctrl_cap.pcp NEQ 0) AND
+               (disconnect->v_allowed_actions NEQ 0) AND
+               (disconnect->allowed_actions.ccbs_act EQ M_CC_CCBS_YES))))
+          {
+            /*
+             * Hook on tone is generated by the
+             * infrastructure and signalled via TCH OR CCBS is possible
+             */
+            CCD_END;
+            cc_set_state (M_CC_CS_12);
+          }
+          else
+          {
+            CCD_END;
+            CCD_START;
+            {
+              MCAST (release, U_RELEASE);
+
+              /*
+               * Hook on tone is generated internally by the mobile station
+               * and no CCBS possible, the connection is released
+               */
+              cc_build_release (release, CAUSE_MAKE(DEFBY_CONDAT, 
+                                                    ORIGSIDE_MS, 
+                                                    MNCC_CC_ORIGINATING_ENTITY,
+                                                    NOT_PRESENT_8BIT),
+                                NULL, MNCC_SS_VER_NOT_PRES);
+              cc_set_state (M_CC_CS_19);
+              for_release (release);
+              TIMERSTART (T308, T308_VALUE);
+            }
+            CCD_END;
+          }
+          break;
+      }
+      break;
+  }
+}
+
+/*
++--------------------------------------------------------------------+
+| PROJECT : GSM-PS (6147)       MODULE  : CC_REL                     |
+| STATE   : code                ROUTINE : cc_release                 |
++--------------------------------------------------------------------+
+
+  PURPOSE : Processing an incoming release message.
+
+*/
+
+GLOBAL void cc_release (T_D_RELEASE * release)
+{
+  GET_INSTANCE_DATA;
+
+  TRACE_FUNCTION ("cc_release()");
+ 
+  if (release->cc_cause.v_cause)
+  {
+    /* The cause is in RELEASE an optional IE */
+    TRACE_EVENT_P1 ("RELEASE cause: %02x", release->cc_cause.cause);
+  }
+  else
+  {
+    TRACE_EVENT ("RELEASE cause: --");
+  }
+
+  switch (cc_data->state[cc_data->index_ti])
+  {
+    /*
+     * M_CC_CS_0 is handled by the formatter
+     */
+    case M_CC_CS_19: /* Release Request */
+    {
+      cc_reset_dtmf ();
+      /* PATCH LE 10.04.00
+       * in disconnect collision case send
+       * MNCC_RELEASE_IND instead of MNCC_RELEASE_CNF
+....   */
+      TIMERSTOP (TIMER_CC);
+      if (cc_data->disc_coll [cc_data->index_ti])
+      {
+/* Implements Measure#  8 */
+        cc_mncc_release_ind ((T_PRIM *)D2P(release));
+      }
+      else
+      {
+/* Implements Measure#  9 */
+        cc_mncc_release_cnf ((T_PRIM *)D2P(release));
+      }
+      // END PATCH LE 10.04.00     
+
+      for_rel_req ();
+      cc_set_state (M_CC_CS_0);
+      /* END PATCH LE 10.04.00 */
+      CCD_END;
+      break;
+    }
+
+    case M_CC_CS_1:  /* call initiated                     */
+    case M_CC_CS_3:  /* mobile originating call proceeding */ 
+      cc_check_setup_reattempt (&release->cc_cause);
+      /*FALLTHROUGH*/ /*lint -fallthrough*/
+    default:
+      cc_reset_dtmf (); /* China change HM 11.07.00 */
+      CCD_END;
+      CCD_START;
+      {
+        MCAST (rel_com, U_RELEASE_COMP);
+        
+        TIMERSTOP (TIMER_CC);
+        switch (cc_data->error)
+        {
+          case M_CC_CAUSE_INVALID_MAND_INFO:
+          case M_CC_CAUSE_COND_INFO_ELEM:
+            {
+              /* local variable to avoid repeated CAUSE_MAKEs
+		 for the same cause */
+              USHORT curr_cause;
+              curr_cause = CAUSE_MAKE(DEFBY_STD, 
+                                      ORIGSIDE_MS, 
+                                      MNCC_CC_ORIGINATING_ENTITY,
+                                      cc_data->error);
+
+              if (cc_data->ti NEQ cc_data->setup_reattempt_ti)
+              {
+                PALLOC (rel_ind, MNCC_RELEASE_IND);
+                rel_ind->ti = cc_data->ti;
+                rel_ind->cause = curr_cause;
+                rel_ind->c_raw_cause = 0;
+                PSENDX (MMI, rel_ind);
+              }
+              cc_build_release_complete (rel_com, curr_cause);
+            }
+            break;
+
+          default:
+            if (cc_data->ti NEQ cc_data->setup_reattempt_ti)
+            {
+/* Implements Measure#  8 */
+              cc_mncc_release_ind ((T_PRIM *)D2P(release));
+            }       
+            cc_build_release_complete (rel_com, CAUSE_MAKE(DEFBY_CONDAT, 
+                                                    ORIGSIDE_MS, 
+                                                    MNCC_CC_ORIGINATING_ENTITY,
+                                                    NOT_PRESENT_8BIT));
+            break;
+        }
+
+        for_release_complete (rel_com);
+      }
+      CCD_END;
+      for_rel_req ();
+      cc_set_state (M_CC_CS_0);
+      cc_setup_reattempt ();
+      break;
+  }
+}
+
+/*
++--------------------------------------------------------------------+
+| PROJECT : GSM-PS (6147)       MODULE  : CC_REL                     |
+| STATE   : code                ROUTINE : cc_release_complete        |
++--------------------------------------------------------------------+
+
+  PURPOSE : Processing an incoming release complete message.
+
+*/
+
+GLOBAL void cc_release_complete (T_D_RELEASE_COMP * rel_com)
+{
+  GET_INSTANCE_DATA;
+
+  TRACE_FUNCTION ("cc_release_complete()");
+
+  if (rel_com->cc_cause.v_cause)
+  {
+    /* The cause is in RELEASE COMPLETE an optional IE */
+    TRACE_EVENT_P1 ("RELEASE COMPLETE cause: %02x", rel_com->cc_cause.cause);
+  }
+  else
+  {
+    TRACE_EVENT ("RELEASE COMPLETE cause: --");
+  }
+
+  EM_CC_RELEASE_COMPLETE_RECEIVED;
+
+  switch (cc_data->state[cc_data->index_ti])
+  {
+    case M_CC_CS_0: /* NULL */
+      CCD_END;
+      for_rel_req ();
+      break;
+
+    case M_CC_CS_03: /* WAIT FOR NETWORK INFO*/
+      /* Stop all running CC timers */
+      TIMERSTOP (TIMER_CC);
+
+      /* Inform MMI */
+      {
+        PALLOC (release, MNCC_RELEASE_IND);
+        release->ti  = cc_data->ti;
+        if (rel_com->v_cc_cause AND rel_com->cc_cause.v_cause)
+        {
+          release->cause = CAUSE_MAKE(DEFBY_STD, 
+                                      ORIGSIDE_NET, 
+                                      MNCC_CC_ORIGINATING_ENTITY,
+                                      rel_com->cc_cause.cause);
+          release->c_raw_cause = cc_build_cause (&rel_com->cc_cause,
+                                                  release->raw_cause);
+        }
+        else
+        {
+          release->cause = CAUSE_MAKE(DEFBY_CONDAT, 
+                                      ORIGSIDE_NET, 
+                                      MNCC_CC_ORIGINATING_ENTITY,
+                                      NOT_PRESENT_8BIT);
+          release->c_raw_cause = 0;
+        }
+        PSENDX (MMI, release);
+      }
+
+      CCD_END;
+
+      /* Release MM connection */
+      for_rel_req ();
+
+      /* Next state is NULL */
+      cc_set_state (M_CC_CS_0);
+      break;
+
+    case M_CC_CS_05: /* CC ESTABLISHMENT CONFIRMED */
+    case M_CC_CS_06: /* RECALL PRESENT */
+      /* Forget stored CCBS setup */
+      PFREE (cc_data->stored_ccbs_setup);
+      cc_data->stored_ccbs_setup = NULL;
+
+      /* Stop all running CC timers */
+      TIMERSTOP (TIMER_CC);
+
+      /* Inform MMI */
+      {
+        PALLOC (release, MNCC_RELEASE_IND);
+        release->ti  = cc_data->ti;
+        if (rel_com->v_cc_cause AND rel_com->cc_cause.v_cause)
+        {
+          release->cause = CAUSE_MAKE(DEFBY_STD, 
+                                      ORIGSIDE_NET, 
+                                      MNCC_CC_ORIGINATING_ENTITY,
+                                      rel_com->cc_cause.cause);
+          release->c_raw_cause = cc_build_cause (&rel_com->cc_cause,
+                                                  release->raw_cause);
+        }
+        else
+        {
+          release->cause = CAUSE_MAKE(DEFBY_CONDAT, 
+                                      ORIGSIDE_NET, 
+                                      MNCC_CC_ORIGINATING_ENTITY,
+                                      NOT_PRESENT_8BIT);
+          release->c_raw_cause = 0;
+        }
+        PSENDX (MMI, release);
+      }
+
+      CCD_END;
+
+      /* Release MM connection */
+      for_rel_req ();
+
+      /* Next state is NULL */
+      cc_set_state (M_CC_CS_0);
+      break;
+
+    case M_CC_CS_19: /* RELEASE REQUEST */
+      cc_reset_dtmf ();
+      /* PATCH LE 10.04.00
+       * in disconnect collision case send
+       * MNCC_RELEASE_IND instead of MNCC_RELEASE_CNF
+       */
+      TIMERSTOP (TIMER_CC);
+
+      if (cc_data->ti NEQ cc_data->setup_reattempt_ti) 
+      {
+        /* Inform MMI only if no setup reattempt for this ti */
+        if (cc_data->disc_coll [cc_data->index_ti])
+        {
+/* Implements Measure#  9 */
+          cc_mncc_release_ind ((T_PRIM *)D2P(rel_com));
+        }
+        else
+        {
+/* Implements Measure#  9 */
+          cc_mncc_release_cnf ((T_PRIM *)D2P(rel_com));
+        }
+        /* END PATCH LE 10.04.00 */
+
+      }
+
+      for_rel_req ();
+      cc_set_state (M_CC_CS_0);
+      CCD_END;
+      cc_setup_reattempt ();
+      break;
+
+    case M_CC_CS_1:  /* call initiated                     */
+    case M_CC_CS_3:  /* mobile originating call proceeding */
+      cc_check_setup_reattempt (&rel_com->cc_cause);
+      /*FALLTHROUGH*/ /*lint -fallthrough*/
+    default:
+      cc_reset_dtmf (); /* China change HM 11.07.00 */
+      if (cc_data->ti NEQ cc_data->setup_reattempt_ti)
+      {
+        /* Implements Measure#  10 */
+        cc_mncc_release_ind ((T_PRIM *)D2P(rel_com));
+      }
+      for_rel_req ();
+      CCD_END;
+      cc_set_state (M_CC_CS_0);
+      cc_setup_reattempt ();
+      break;
+  }
+}
+
+/*
++--------------------------------------------------------------------+
+| PROJECT : GSM-PS (6147)       MODULE  : CC_REL                     |
+| STATE   : code                ROUTINE : cc_rel_ind                 |
++--------------------------------------------------------------------+
+
+  PURPOSE : Processing of an incoming release indication from
+            mobility management.
+
+*/
+
+GLOBAL void cc_rel_ind (USHORT cause)
+{
+  GET_INSTANCE_DATA;
+
+  TRACE_FUNCTION ("cc_rel_ind()");
+
+  switch (cc_data->state[cc_data->index_ti])
+  {
+    case M_CC_CS_0:
+      break;
+
+    case M_CC_CS_05: /* CC ESTABLISHMENT CONFIRMED */
+    case M_CC_CS_06: /* RECALL PRESENT */
+      /* Stop all timers */
+      TIMERSTOP (TIMER_CC);
+
+      /* Forget stored CCBS setup message */
+      PFREE (cc_data->stored_ccbs_setup);
+      cc_data->stored_ccbs_setup = NULL;
+
+      /* Inform MMI */
+      {
+        PALLOC (release, MNCC_RELEASE_IND);
+        release->ti    = cc_data->ti;
+        release->cause = cause; /* provide cause from lower layers transparently to higher layers */
+        release->c_raw_cause = 0;
+        PSENDX (MMI, release);
+      }
+
+      cc_set_state (M_CC_CS_0);
+      srv_use_stored_prim ();
+      break;
+
+    case CS_101: /* Re-establishment request in state M_CC_CS_10 */\
+    case CS_261: /* Re-establishment request in state CS_26 */\
+      EM_CC_REESTABLISHED_FAILED;
+      /*FALLTHROUGH*/ /*lint -fallthrough*/
+
+    default:
+      cc_reset_dtmf (); /* China change HM 11.07.00 */
+      if (cc_data->ti NEQ cc_data->setup_reattempt_ti)
+      {
+        PALLOC (rej_ind, MNCC_REJECT_IND);
+        rej_ind->ti  = cc_data->ti;
+        rej_ind->cause = cause;
+        PSENDX (MMI, rej_ind);
+      }
+
+      cc_set_state (M_CC_CS_0);
+      if (cc_data->ti EQ cc_data->setup_reattempt_ti)
+      {
+        cc_setup_reattempt();
+      }
+      else
+      {
+        srv_use_stored_prim ();
+      }
+      break;
+  }
+}
+
+/*
++--------------------------------------------------------------------+
+| PROJECT : GSM-PS (6147)       MODULE  : CC_REL                     |
+| STATE   : code                ROUTINE : cc_err_ind                 |
++--------------------------------------------------------------------+
+
+  PURPOSE : Processing of an incoming error indication from
+            mobility management.
+
+*/
+
+GLOBAL void cc_err_ind (T_MMCM_ERROR_IND * err_ind)
+{
+  GET_INSTANCE_DATA;
+
+  TRACE_FUNCTION ("cc_err_ind()");
+
+  switch (cc_data->state[cc_data->index_ti])
+  {
+    case M_CC_CS_0:
+      break;
+
+    case M_CC_CS_10:
+      {
+/* Implements Measure#  41 */
+        cc_mncc_sync_ind(err_ind->ti, CS_101);
+
+        EM_CC_REESTABLISHED_STARTED;
+
+      }
+      break;
+
+    case M_CC_CS_26:
+      {
+/* Implements Measure#  41 */
+        cc_mncc_sync_ind(err_ind->ti, CS_261);
+
+        EM_CC_REESTABLISHED_STARTED;
+
+      }
+      break;
+
+    default:
+      cc_reset_dtmf ();
+      if (cc_data->ti NEQ cc_data->setup_reattempt_ti)
+      {
+        PALLOC (rel_ind, MNCC_RELEASE_IND);
+        rel_ind->cause = err_ind->cause;
+        rel_ind->ti    = cc_data->ti;
+        rel_ind->c_raw_cause = 0;
+        PSENDX (MMI, rel_ind);
+      }
+      cc_set_state (M_CC_CS_0);
+      for_rel_req ();
+      cc_setup_reattempt ();
+      break;
+  }
+  PFREE (err_ind);
+}
+/* Implements Measure#  8 */
+/*
++--------------------------------------------------------------------+
+| PROJECT : GSM-PS (6147)       MODULE  : CC_REL                     |
+| STATE   : code                ROUTINE : cc_mncc_release_ind        |
++--------------------------------------------------------------------+
+
+  PURPOSE : send mncc_release_ind
+
+*/
+
+LOCAL void cc_mncc_release_ind (T_PRIM * prim)
+{
+  GET_INSTANCE_DATA;
+  UBYTE                     v_cc_cause;
+  T_M_CC_cc_cause                *cc_cause;                             
+  
+  TRACE_FUNCTION ("cc_mncc_release_ind()");
+  
+  if (prim->custom.opc EQ D_RELEASE)
+  {
+    v_cc_cause = ((T_D_RELEASE *)P2D(prim))->v_cc_cause;
+    cc_cause   = &((T_D_RELEASE *)P2D(prim))->cc_cause;
+    cc_build_facility_ind (MNCC_FAC_IN_RELEASE, 
+                           ((T_D_RELEASE *)P2D(prim))->v_facility,
+                           &((T_D_RELEASE *)P2D(prim))->facility);
+  }
+  else
+  {
+    v_cc_cause = ((T_D_RELEASE_COMP *)P2D(prim))->v_cc_cause;
+    cc_cause   = &((T_D_RELEASE_COMP *)P2D(prim))->cc_cause;
+    cc_build_facility_ind (MNCC_FAC_IN_RELEASE_COMP,
+                           ((T_D_RELEASE_COMP *)P2D(prim))->v_facility, 
+                           &((T_D_RELEASE_COMP *)P2D(prim))->facility);
+  }
+
+  /* Patch HM 29-Jan-02 <<< */
+  {
+    PALLOC (rel_ind, MNCC_RELEASE_IND);
+    rel_ind->ti    = cc_data->ti;
+    if (v_cc_cause)
+    {
+      rel_ind->cause = CAUSE_MAKE(DEFBY_STD, 
+                                   ORIGSIDE_NET, 
+                                   MNCC_CC_ORIGINATING_ENTITY,
+                                   cc_cause->cause);
+      rel_ind->c_raw_cause = cc_build_cause (cc_cause,
+                                             rel_ind->raw_cause);
+    }
+    else
+    {
+      rel_ind->cause = CAUSE_MAKE(DEFBY_CONDAT, 
+                                   ORIGSIDE_NET, 
+                                   MNCC_CC_ORIGINATING_ENTITY,
+                                   NOT_PRESENT_8BIT);
+      /* Setting raw_cause to empty as this is a local release
+       * of MM connection,CC is not receiving any cause value
+       * from Network
+       */
+       rel_ind->c_raw_cause = 0;
+    }
+    PSENDX (MMI, rel_ind);
+  }
+}
+
+/* Implements Measure#  9 */
+/*
++--------------------------------------------------------------------+
+| PROJECT : GSM-PS (6147)       MODULE  : CC_REL                     |
+| STATE   : code                ROUTINE : cc_mncc_release_cnf        |
++--------------------------------------------------------------------+
+
+  PURPOSE : send mncc_release_cnf
+
+*/
+
+LOCAL void cc_mncc_release_cnf (T_PRIM * prim)
+{
+  GET_INSTANCE_DATA;
+  UBYTE                     v_cc_cause;
+  T_M_CC_cc_cause                *cc_cause;                             
+
+  TRACE_FUNCTION ("cc_mncc_release_cnf()");
+  
+  if (prim->custom.opc EQ D_RELEASE)
+  {
+    v_cc_cause = ((T_D_RELEASE *)P2D(prim))->v_cc_cause;
+    cc_cause   = &((T_D_RELEASE *)P2D(prim))->cc_cause;
+    cc_build_facility_ind (MNCC_FAC_IN_RELEASE_COMP, /* A little bit dirty */
+                           ((T_D_RELEASE *)P2D(prim))->v_facility,
+                           &((T_D_RELEASE *)P2D(prim))->facility);
+  }
+  else
+  {
+    v_cc_cause = ((T_D_RELEASE_COMP *)P2D(prim))->v_cc_cause;
+    cc_cause   = &((T_D_RELEASE_COMP *)P2D(prim))->cc_cause;
+    cc_build_facility_ind (MNCC_FAC_IN_RELEASE_COMP,
+                           ((T_D_RELEASE_COMP *)P2D(prim))->v_facility, 
+                           &((T_D_RELEASE_COMP *)P2D(prim))->facility);
+  }
+
+  /* Patch HM 29-Jan-02  <<< */
+  {
+    PALLOC (rel_cnf, MNCC_RELEASE_CNF);
+    rel_cnf->ti    = cc_data->ti;
+    if (v_cc_cause)
+    {
+      rel_cnf->cause = CAUSE_MAKE(DEFBY_STD, 
+                                  ORIGSIDE_NET, 
+                                  MNCC_CC_ORIGINATING_ENTITY,
+                                  cc_cause->cause);
+      rel_cnf->c_raw_cause = cc_build_cause (cc_cause,
+                                             rel_cnf->raw_cause);
+    }
+    else
+    {
+      rel_cnf->cause = CAUSE_MAKE(DEFBY_CONDAT, 
+                                  ORIGSIDE_NET, 
+                                  MNCC_CC_ORIGINATING_ENTITY,
+                                  NOT_PRESENT_8BIT);
+      /* Setting raw_cause to empty as this is a local release
+       * of MM connection,CC is not receiving any cause value
+       * from Network
+       */
+       rel_cnf->c_raw_cause = 0;
+    }
+    PSENDX (MMI, rel_cnf);
+  }
+}
+
+
+/* Implements Measure#  41 */
+/*
++--------------------------------------------------------------------+
+| PROJECT : GSM-PS (6147)       MODULE  : CC_REL                     |
+| STATE   : code                ROUTINE : cc_mncc_sync_ind           |
++--------------------------------------------------------------------+
+
+  PURPOSE : send cc_mncc_sync_ind
+
+*/
+
+LOCAL void cc_mncc_sync_ind (UBYTE ti, UBYTE new_state)
+{
+  TRACE_FUNCTION ("cc_mncc_sync_ind()");
+  {
+    PALLOC (sync_ind, MNCC_SYNC_IND); /* T_MNCC_SYNC_IND */
+
+    sync_ind->ti    = ti;
+    sync_ind->cause = MNCC_CAUSE_REEST_STARTED;
+    sync_ind->ch_info.ch_mode=NOT_PRESENT_8BIT;
+    sync_ind->ch_info.ch_type=NOT_PRESENT_8BIT;
+    
+    PSENDX (MMI, sync_ind);
+    
+    for_reest_req ();
+    cc_set_state (new_state);
+  }
+
+}
+#endif