+
−/*
+
−+-----------------------------------------------------------------------------
+
−|  Project :  GPRS (8441)
+
−|  Modul   :  sndcp_nup.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 is part of the entity SNDCP and implements all
+
−|             functions to handles the incoming primitives as described in
+
−|             the SDL-documentation (NU-statemachine)
+
−+-----------------------------------------------------------------------------
+
−*/
+
−
+
−/*---- HISTORY --------------------------------------------------------------*/
+
−
+
−#define ENTITY_SNDCP
+
−
+
−/*==== INCLUDES =============================================================*/
+
−
+
−#include "typedefs.h"    /* to get Condat data types */
+
−#include "vsi.h"        /* to get a lot of macros */
+
−#include "macdef.h"
+
−#include "gsm.h"        /* to get a lot of macros */
+
−#include "prim.h"       /* to get the definitions of used SAP and directions */
+
−
+
−#include "dti.h"
+
−
+
−#include "sndcp.h"        /* to get the global entity definitions */
+
−#include "sndcp_f.h"       /* to get the functions to access the global arrays*/
+
−
+
−#include "sndcp_nuf.h"    /* to get functions from nu service */
+
−#include "sndcp_sus.h"    /* to get internal signals to su signals */
+
−#include "sndcp_suas.h"    /* to get internal signals to sua signals */
+
−
+
−
+
−/*==== CONST ================================================================*/
+
−
+
−/*==== LOCAL VARS ===========================================================*/
+
−
+
−/*==== PRIVATE FUNCTIONS ====================================================*/
+
−
+
−/*==== PUBLIC FUNCTIONS =====================================================*/
+
−
+
−
+
−/*
+
−+------------------------------------------------------------------------------
+
−| Function    : nu_connection_state
+
−+------------------------------------------------------------------------------
+
−| Description : DTI connnection has been opened by calling sndcp_sig_callback
+
−|               with reason DTI_REASON_CONNECTION_OPENED.
+
−|
+
−| Parameters  : UBYTE nsapi: the affected NSAPI
+
−|
+
−+------------------------------------------------------------------------------
+
−*/
+
−GLOBAL void nu_connection_state (UBYTE nsapi, BOOL opened)
+
−{
+
−  TRACE_ISIG( "nu_connection_state" );
+
−
+
−  /*
+
−   * set service instance according to nsapi in primitive
+
−   */
+
−  sndcp_data->nu = & sndcp_data->nu_base[nsapi];
+
−
+
−  switch( GET_STATE( NU ) )
+
−  {
+
−
+
−    case NU_UNACK_SU_RECEPTIVE :
+
−    case NU_UNACK_SU_NOT_RECEPTIVE:
+
−#ifndef NCONFIG
+
−    case NU_SEND_UNACK_SU_RECEPTIVE:
+
−    case NU_SEND_UNACK_SU_NOT_RECEPTIVE:
+
−#endif /* NCONFIG */
+
−      if (!sndcp_data->nu->connection_is_opened
+
−          &&
+
−          opened) {
+
−        sndcp_data->nu->connection_is_opened = TRUE;
+
−#ifndef SNDCP_UPM_INCLUDED
+
−        if (sndcp_data->nu->sn_switch_cnf_expected) {
+
−          PALLOC (sn_switch_cnf, SN_SWITCH_CNF);
+
−          sn_switch_cnf->nsapi = nsapi;
+
−          sndcp_data->nu->sn_switch_cnf_expected = FALSE;
+
−          PSEND(hCommMMI, sn_switch_cnf);
+
−        }
+
−#endif /*SNDCP_UPM_INCLUDED*/
+
−#ifdef SNDCP_UPM_INCLUDED
+
−        {
+
−          U32 linkid = 0;
+
−          PALLOC (sn_dti_cnf, SN_DTI_CNF);
+
−          sndcp_get_nsapi_linkid(nsapi, &linkid);
+
−          sn_dti_cnf->dti_linkid = linkid;
+
−          sndcp_data->nu->sn_dti_cnf_expected = FALSE;
+
−          sn_dti_cnf->dti_conn = NAS_CONNECT_DTI;
+
−
+
−          PSEND(hCommMMI, sn_dti_cnf);
+
−        }
+
−#endif
+
−        nu_unitready_ind_if_nec(nsapi);
+
−
+
−      } else if (!opened) {
+
−        sndcp_data->nu->connection_is_opened = FALSE;
+
−        sndcp_data->nu->sn_unitready_ind_pending = FALSE;
+
−        sndcp_data->nu->sn_switch_cnf_expected = FALSE;
+
−      }
+
−      break;
+
−    case NU_ACK_SUA_RECEPTIVE:
+
−    case NU_ACK_SUA_NOT_RECEPTIVE:
+
−    case NU_SUS_SUA_RECEPTIVE:
+
−    case NU_SUS_SUA_NOT_RECEPTIVE:
+
−    case NU_REC_SUA_NOT_RECEPTIVE:
+
−#ifndef NCONFIG
+
−    case NU_SEND_ACK_SUA_RECEPTIVE:
+
−    case NU_SEND_ACK_SUA_NOT_RECEPTIVE:
+
−    case NU_SEND_SUS_SUA_RECEPTIVE:
+
−    case NU_SEND_SUS_SUA_NOT_RECEPTIVE:
+
−    case NU_SEND_REC_SUA_NOT_RECEPTIVE:
+
−#endif /* NCONFIG */
+
−      if (!sndcp_data->nu->connection_is_opened
+
−          &&
+
−          opened) {
+
−        sndcp_data->nu->connection_is_opened = TRUE;
+
−#ifdef SNDCP_UPM_INCLUDED
+
−        {
+
−          U32 linkid = 0;
+
−          PALLOC (sn_dti_cnf, SN_DTI_CNF);
+
−          sndcp_get_nsapi_linkid(nsapi, &linkid);
+
−          sn_dti_cnf->dti_linkid = linkid;
+
−          sndcp_data->nu->sn_dti_cnf_expected = FALSE;
+
−          sn_dti_cnf->dti_conn = NAS_CONNECT_DTI;
+
−
+
−          PSEND(hCommMMI, sn_dti_cnf);
+
−        }
+
−        
+
−#else 
+
−        if (sndcp_data->nu->sn_switch_cnf_expected) {
+
−          PALLOC (sn_switch_cnf, SN_SWITCH_CNF);
+
−          sn_switch_cnf->nsapi = nsapi;
+
−          sndcp_data->nu->sn_switch_cnf_expected = FALSE;
+
−          PSEND(hCommMMI, sn_switch_cnf);
+
−        }
+
−#endif
+
−        nu_ready_ind_if_nec(nsapi);
+
−      } else if (!opened) {
+
−        sndcp_data->nu->connection_is_opened = FALSE;
+
−        sndcp_data->nu->sn_ready_ind_pending = FALSE;
+
−        sndcp_data->nu->sn_switch_cnf_expected = FALSE;
+
−      }
+
−      break;
+
−    default:
+
−      TRACE_ERROR( "Function nu_connection_state unexpected" );
+
−      break;
+
−  }
+
−} /* nu_connection_state() */
+
−
+
−/*
+
−+------------------------------------------------------------------------------
+
−| Function    : nu_sn_data_req
+
−+------------------------------------------------------------------------------
+
−| Description : Handles the primitive SN_DATA_REQ
+
−|
+
−| Parameters  : *sn_data_req - Ptr to primitive payload
+
−|
+
−+------------------------------------------------------------------------------
+
−*/
+
−GLOBAL void nu_sn_data_req ( T_SN_DATA_REQ *sn_data_req )
+
−{
+
−  BOOL used = FALSE;
+
−  BOOL sack = FALSE;
+
−  UBYTE sapi = 0;
+
−
+
−  TRACE_FUNCTION( "nu_sn_data_req" );
+
−
+
−  dti_stop(sndcp_data->hDTI,
+
−           0,
+
−#ifndef SNDCP_UPM_INCLUDED
+
−           SNDCP_INTERFACE_ACK,
+
−#else
+
−           SNDCP_INTERFACE_UNACK,
+
−#endif
+
−           sn_data_req->nsapi);
+
−
+
−  /*
+
−   * set service instance according to nsapi in primitive
+
−   */
+
−  sndcp_data->nu = & sndcp_data->nu_base[sn_data_req->nsapi];
+
−  /*
+
−   * User has used up his ready_ind.
+
−   */
+
−  sndcp_data->nu->sn_ready_ind_pending = FALSE;
+
−  /*
+
−   * If context is not active, discard primitive.
+
−   */
+
−  sndcp_is_nsapi_used(sn_data_req->nsapi, &used);
+
−  if (!used && sn_data_req != NULL) {
+
−    MFREE_PRIM(sn_data_req);  
+
−    sn_data_req = NULL;
+
−    return;
+
−  }
+
−  if (sn_data_req == NULL) {
+
−    /*
+
−     * Should not be possible. Only included to avoid NULL pointer use.
+
−     */
+
−    return;
+
−  }
+
−
+
−#ifdef SNDCP_TRACE_IP_DATAGRAM
+
−  if(sndcp_data->trace_ip_header || sndcp_data->trace_ip_datagram){
+
−    TRACE_EVENT("--------- Uplink IP datagram ---------");
+
−#ifdef _SNDCP_DTI_2_
+
−    sndcp_trace_ip_datagram(& sn_data_req->desc_list2);
+
−#else /*_SNDCP_DTI_2_*/
+
−    sndcp_trace_ip_datagram(& sn_data_req->desc_list);
+
−#endif /*_SNDCP_DTI_2_*/
+
−    TRACE_EVENT("--------------------------------------");
+
−  } else {
+
−#ifdef _SNDCP_DTI_2_
+
−    sndcp_default_ip_trace(& sn_data_req->desc_list2, SNDCP_UL_PACKET);
+
−#else /*_SNDCP_DTI_2_*/
+
−    sndcp_default_ip_trace& sn_data_req->desc_list, SNDCP_UL_PACKET);
+
−#endif /*_SNDCP_DTI_2_*/
+
−  }
+
−  if(sndcp_data->trace_ip_bin){
+
−#ifdef _SNDCP_DTI_2_
+
−    sndcp_bin_trace_ip(& sn_data_req->desc_list2, SNDCP_UL_PACKET);
+
−#else /*_SNDCP_DTI_2_*/
+
−    sndcp_bin_trace_ip(& sn_data_req->desc_list, SNDCP_UL_PACKET);
+
−#endif /*_SNDCP_DTI_2_*/
+
−  }
+
−
+
−#else /* SNDCP_TRACE_IP_DATAGRAM */
+
−
+
−#ifdef SNDCP_TRACE_BUFFER
+
−#ifdef _SNDCP_DTI_2_
+
−  TRACE_EVENT_P1("uplink at SN SAP: %d octets",
+
−                 sn_data_req->desc_list2.list_len);
+
−  sndcp_trace_desc_list(& sn_data_req->desc_list2);
+
−#else /*_SNDCP_DTI_2_*/
+
−  TRACE_EVENT_P1("uplink at SN SAP: %d octets",
+
−                 sn_data_req->desc_list.list_len);
+
−  sndcp_trace_desc_list(& sn_data_req->desc_list);
+
−#endif /*_SNDCP_DTI_2_*/
+
−#endif /* SNDCP_TRACE_BUFFER */
+
−#endif /* SNDCP_TRACE_IP_DATAGRAM */
+
−
+
−
+
−  switch( GET_STATE( NU ) )
+
−  {
+
−    case NU_ACK_SUA_RECEPTIVE:
+
−      /*
+
−       * Buffer the given N-PDU
+
−       */
+
−      nu_buffer_npdu(sndcp_data->nu->send_npdu_number_ack, sn_data_req);
+
−      /*
+
−       * It is not checked here if the nsapi is active anyway!
+
−       */
+
−      sndcp_get_nsapi_sapi(sndcp_data->nu->nsapi, &sapi);
+
−      SET_STATE(NU, NU_ACK_SUA_NOT_RECEPTIVE);
+
−      sndcp_data->nu->send_npdu_number_ack =
+
−        (U8)((sndcp_data->nu->send_npdu_number_ack + 1) % MAX_NPDU_NUMBER_ACK);
+
−      sndcp_get_sapi_ack(sapi, &sack);
+
−      if(sack){
+
−        sig_nu_sua_data_req(sn_data_req,
+
−                            (U8)((sndcp_data->nu->send_npdu_number_ack - 1
+
−                            + MAX_NPDU_NUMBER_ACK)% MAX_NPDU_NUMBER_ACK),
+
−                            sn_data_req->nsapi,
+
−                            sapi);
+
−      }
+
−
+
−
+
−      break;
+
−    case NU_UNACK_SU_NOT_RECEPTIVE:
+
−    case NU_UNACK_SU_RECEPTIVE:
+
−      nu_unitready_ind_if_nec(sn_data_req->nsapi);
+
−#ifdef _SNDCP_DTI_2_
+
−      MFREE_PRIM(sn_data_req);
+
−#else /*_SNDCP_DTI_2_*/
+
−      PFREE_DESC(sn_data_req);
+
−#endif /*_SNDCP_DTI_2_*/
+
−      sn_data_req = NULL;
+
−      break;
+
−    case NU_REC_SUA_NOT_RECEPTIVE:
+
−    case NU_SUS_SUA_NOT_RECEPTIVE:
+
−    case NU_SUS_SUA_RECEPTIVE:
+
−    case NU_ACK_SUA_NOT_RECEPTIVE:
+
−
+
−      nu_buffer_npdu(sndcp_data->nu->send_npdu_number_ack,
+
−                     sn_data_req);
+
−      sndcp_data->nu->send_npdu_number_ack =
+
−        (U8)((sndcp_data->nu->send_npdu_number_ack + 1) % MAX_NPDU_NUMBER_ACK);
+
−      break;
+
−#ifndef NCONFIG
+
−    case NU_SEND_UNACK_SU_RECEPTIVE:
+
−    case NU_SEND_UNACK_SU_NOT_RECEPTIVE:
+
−    case NU_SEND_ACK_SUA_RECEPTIVE:
+
−    case NU_SEND_ACK_SUA_NOT_RECEPTIVE:
+
−    case NU_SEND_SUS_SUA_RECEPTIVE:
+
−    case NU_SEND_SUS_SUA_NOT_RECEPTIVE:
+
−    case NU_SEND_REC_SUA_NOT_RECEPTIVE:
+
−#ifndef SNDCP_UPM_INCLUDED
+
−    dti_start(sndcp_data->hDTI, 0, SNDCP_INTERFACE_ACK, sn_data_req->nsapi);
+
−#ifdef _SNDCP_DTI_2_
+
−    MFREE_PRIM(sn_data_req);
+
−#else /*_SNDCP_DTI_2_*/
+
−    PFREE_DESC(sn_data_req);
+
−#endif /*_SNDCP_DTI_2_*/
+
−#else /*#ifndef SNDCP_UPM_INCLUDED*/
+
−    dti_start(sndcp_data->hDTI, 0, SNDCP_INTERFACE_UNACK, sn_data_req->nsapi);
+
−    MFREE_PRIM(sn_data_req);
+
−#endif /*#ifndef  SNDCP_UPM_INCLUDED*/
+
−
+
−      sn_data_req = NULL;
+
−      break;
+
−#endif
+
−    default:
+
−      TRACE_ERROR( "SN_DATA_REQ unexpected" );
+
−#ifdef _SNDCP_DTI_2_
+
−      MFREE_PRIM(sn_data_req);
+
−#else /*_SNDCP_DTI_2_*/
+
−      PFREE_DESC(sn_data_req);
+
−#endif /*_SNDCP_DTI_2_*/
+
−      sn_data_req = NULL;
+
−      break;
+
−  }
+
−
+
−} /* nu_sn_data_req() */
+
−
+
−/*
+
−+------------------------------------------------------------------------------
+
−| Function    : nu_sn_unitdata_req
+
−+------------------------------------------------------------------------------
+
−| Description : Handles the primitive SN_UNITDATA_REQ
+
−|
+
−| Parameters  : *sn_unitdata_req - Ptr to primitive payload
+
−|
+
−+------------------------------------------------------------------------------
+
−*/
+
−GLOBAL void nu_sn_unitdata_req ( T_SN_UNITDATA_REQ *sn_unitdata_req )
+
−{
+
−  UBYTE sapi = 0;
+
−  BOOL used = FALSE;
+
−  UBYTE nsapi = sn_unitdata_req->nsapi;
+
−
+
−
+
−#ifdef FLOW_TRACE
+
−  sndcp_trace_flow_control(FLOW_TRACE_SNDCP, FLOW_TRACE_UP, FLOW_TRACE_TOP, FALSE);
+
−#endif
+
−
+
−  TRACE_FUNCTION( "nu_sn_unitdata_req" );
+
−
+
−     dti_stop(sndcp_data->hDTI,
+
−              0,
+
−              SNDCP_INTERFACE_UNACK,
+
−              sn_unitdata_req->nsapi);
+
−
+
− /*
+
−  * set service instance according to nsapi in primitive
+
−  */
+
−  sndcp_data->nu = & sndcp_data->nu_base[sn_unitdata_req->nsapi];
+
−  /*
+
−   * User has used up his ready_ind.
+
−   */
+
−  sndcp_data->nu->sn_unitready_ind_pending = FALSE;
+
−  /*
+
−   * If context is not active, discard primitive.
+
−   */
+
−  sndcp_is_nsapi_used(sn_unitdata_req->nsapi, &used);
+
−  if (!used) {
+
−#ifdef _SNDCP_DTI_2_
+
−    MFREE_PRIM (sn_unitdata_req);
+
−#else /*_SNDCP_DTI_2_*/
+
−    PFREE_DESC (sn_unitdata_req);
+
−#endif /*_SNDCP_DTI_2_*/
+
−    sn_unitdata_req = NULL;
+
−    return;
+
−  }
+
−
+
−#ifdef SNDCP_TRACE_IP_DATAGRAM
+
−  if(sndcp_data->trace_ip_header || sndcp_data->trace_ip_datagram){
+
−    TRACE_EVENT("--------- Uplink IP datagram ---------");
+
−#ifdef _SNDCP_DTI_2_
+
−    sndcp_trace_ip_datagram(& sn_unitdata_req->desc_list2);
+
−#else /*_SNDCP_DTI_2_*/
+
−    sndcp_trace_ip_datagram(& sn_unitdata_req->desc_list);
+
−#endif /*_SNDCP_DTI_2_*/
+
−    TRACE_EVENT("--------------------------------------");
+
−  } else {
+
−#ifdef _SNDCP_DTI_2_
+
−    sndcp_default_ip_trace(& sn_unitdata_req->desc_list2, SNDCP_UL_PACKET);  
+
−#else /*_SNDCP_DTI_2_*/
+
−    sndcp_default_ip_trace(& sn_unitdata_req->desc_list, SNDCP_UL_PACKET);
+
−#endif /*_SNDCP_DTI_2_*/
+
−  }
+
−  if(sndcp_data->trace_ip_bin){
+
−#ifdef _SNDCP_DTI_2_
+
−    sndcp_bin_trace_ip(& sn_unitdata_req->desc_list2, SNDCP_UL_PACKET);
+
−#else /*_SNDCP_DTI_2_*/
+
−    sndcp_bin_trace_ip(& sn_unitdata_req->desc_list, SNDCP_UL_PACKET);
+
−#endif /*_SNDCP_DTI_2_*/
+
−  } 
+
−#else /* SNDCP_TRACE_IP_DATAGRAM */
+
−
+
−#ifdef SNDCP_TRACE_BUFFER
+
−#ifdef _SNDCP_DTI_2_
+
−  TRACE_EVENT_P1("uplink at SN SAP: %d octets",
+
−                 sn_unitdata_req->desc_list2.list_len);
+
−  sndcp_trace_desc_list(& sn_unitdata_req->desc_list2);
+
−#else /*_SNDCP_DTI_2_*/
+
−  TRACE_EVENT_P1("uplink at SN SAP: %d octets",
+
−                 sn_unitdata_req->desc_list.list_len);
+
−  sndcp_trace_desc_list(& sn_unitdata_req->desc_list);
+
−#endif /*_SNDCP_DTI_2_*/
+
−#endif /* SNDCP_TRACE_BUFFER */
+
−#endif /* SNDCP_TRACE_IP_DATAGRAM */
+
−
+
−  switch( GET_STATE( NU ) )
+
−  {
+
−    case NU_ACK_SUA_NOT_RECEPTIVE:
+
−    case NU_ACK_SUA_RECEPTIVE:
+
−      if (sn_unitdata_req != NULL) {
+
−#ifdef _SNDCP_DTI_2_
+
−        MFREE_PRIM (sn_unitdata_req);
+
−#else /*_SNDCP_DTI_2_*/
+
−        PFREE_DESC(sn_unitdata_req);
+
−#endif /*_SNDCP_DTI_2_*/
+
−        sn_unitdata_req = NULL;
+
−      }
+
−      nu_ready_ind_if_nec(nsapi);
+
−      break;
+
−    case NU_UNACK_SU_NOT_RECEPTIVE:
+
−      if (sn_unitdata_req != NULL) {
+
−#ifdef _SNDCP_DTI_2_
+
−        MFREE_PRIM (sn_unitdata_req);
+
−#else /*_SNDCP_DTI_2_*/
+
−        PFREE_DESC(sn_unitdata_req);
+
−#endif /*_SNDCP_DTI_2_*/
+
−        sn_unitdata_req = NULL;
+
−      }
+
−     break;
+
−    case NU_UNACK_SU_RECEPTIVE:
+
−      /*
+
−       * It is not checked here if the nsapi is active anyway!
+
−       */
+
−      sndcp_get_nsapi_sapi(sndcp_data->nu->nsapi, &sapi);
+
−      SET_STATE(NU, NU_UNACK_SU_NOT_RECEPTIVE);
+
−      sndcp_data->nu->send_npdu_number_unack =
+
−        (sndcp_data->nu->send_npdu_number_unack + 1) % MAX_NPDU_NUMBER_UNACK;
+
−      sig_nu_su_unitdata_req(sn_unitdata_req,
+
−                             (U16)((sndcp_data->nu->send_npdu_number_unack - 1
+
−                             + MAX_NPDU_NUMBER_UNACK) % MAX_NPDU_NUMBER_UNACK),
+
−                             sndcp_data->nu->nsapi,
+
−                             sapi);
+
−
+
−
+
−      break;
+
−#ifndef NCONFIG
+
−    case NU_SEND_UNACK_SU_RECEPTIVE:
+
−    case NU_SEND_UNACK_SU_NOT_RECEPTIVE:
+
−    case NU_SEND_ACK_SUA_RECEPTIVE:
+
−    case NU_SEND_ACK_SUA_NOT_RECEPTIVE:
+
−    case NU_SEND_SUS_SUA_RECEPTIVE:
+
−    case NU_SEND_SUS_SUA_NOT_RECEPTIVE:
+
−    case NU_SEND_REC_SUA_NOT_RECEPTIVE:
+
−      dti_start(sndcp_data->hDTI, 0, SNDCP_INTERFACE_UNACK, sn_unitdata_req->nsapi);
+
−      if (sn_unitdata_req != NULL) {
+
−#ifdef _SNDCP_DTI_2_
+
−        MFREE_PRIM (sn_unitdata_req);
+
−#else /*_SNDCP_DTI_2_*/
+
−        PFREE_DESC(sn_unitdata_req);
+
−#endif /*_SNDCP_DTI_2_*/
+
−        sn_unitdata_req = NULL;
+
−      }
+
−
+
−      break;
+
−#endif
+
−    default:
+
−      TRACE_ERROR( "SN_UNITDATA_REQ unexpected" );
+
−#ifdef _SNDCP_DTI_2_
+
−      MFREE_PRIM (sn_unitdata_req);
+
−#else /*_SNDCP_DTI_2_*/
+
−      PFREE_DESC(sn_unitdata_req);
+
−#endif /*_SNDCP_DTI_2_*/
+
−
+
−      sn_unitdata_req = NULL;
+
−      break;
+
−  }
+
−
+
−} /* nu_sn_unitdata_req() */
+
−
+
−