--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gsm-fw/g23m-aci/dti/dti_int.c	Sun Oct 12 01:45:14 2014 +0000
@@ -0,0 +1,1205 @@
+/*
++-----------------------------------------------------------------------------
+|  Project :  DTILIB
+|  Modul   :  DTI
++-----------------------------------------------------------------------------
+|  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 :  Definitions for the Protocol Stack Library
+|             DTI
++-----------------------------------------------------------------------------
+
+  MODULE  : DTI
+
+  PURPOSE : Internal functions of the Protocol Stack Library DTI
+*/
+
+#ifndef DTI_INT_C
+#define DTI_INT_C
+#endif
+
+/*==== CONST =======================================================*/
+
+#include <string.h>
+#include "typedefs.h"
+#include "pconst.cdg"
+#include "vsi.h"
+#include "custom.h"
+#include "gsm.h"
+#include "prim.h"
+#include "dti.h"
+#include "dti_int_def.h"
+#include "dti_int_prot.h"
+
+
+#ifdef FF_TCP_IP
+#include "atp/atp_api.h"
+#endif /* FF_TCP_IP */
+
+/*
++---------------------------------------------------------------------+
+| PROJECT : DTILIB                MODULE  : DTI_KERF                  |
+| STATE   : code                  ROUTINE : set_default_para_data_base|
++---------------------------------------------------------------------+
+
+ *
+ *  Set the default parameter for the DTI data base
+ *
+ */
+
+GLOBAL void set_default_para_data_base(DTI_HANDLE hDTI)
+{
+  hDTI->first_link = D_LINK;
+  hDTI->handle     = D_LINK_HANDLE;
+  hDTI->max_links  = D_MAX_LINKS;
+
+#ifdef FF_TCP_IP
+  hDTI->entity_id_p = D_ATP_SW_ENTITY_ID;
+#endif /* FF_TCP_IP */
+}
+
+/*
++--------------------------------------------------------------------+
+| PROJECT : DTILIB                MODULE  : DTI_KERF                 |
+| STATE   : code                  ROUTINE : free_dti_packets_queue   |
++--------------------------------------------------------------------+
+
+ *
+ *  Free dti packets in the queue
+ *
+ */
+
+LOCAL void free_dti_data_ind_packets_queue(DTI_HANDLE hDTI, T_DTI2_DATA_IND * p_data_ind)
+{
+  T_DTI2_DATA_IND *p_ind;
+
+  BOOL go = TRUE;
+
+  trace_function( hDTI->handle,
+    "free_dti_data_ind_packets_queue()",
+    hDTI->entity_options);
+
+   /*
+    * Are there any packets in the queue ?
+    */
+
+  if (p_data_ind EQ NO_DATA_PACKET )
+    return;
+
+  p_ind = p_data_ind;
+
+  /*
+   *  Check if DTILIB is supported
+   */
+
+  /*
+   *  Free the packets
+   */
+
+  do {
+    T_DTI2_DATA_IND *p_last_ind;
+    p_last_ind = p_ind;
+
+    if(p_ind->link_id NEQ 0)
+      p_ind = (T_DTI2_DATA_IND *) p_ind->link_id;
+    else
+      go = FALSE;
+
+    /*
+     *  Free the descs at first
+     */
+    mfree_desc(hDTI, &p_last_ind->desc_list2);
+
+    /*
+     *  Free the primitive
+     */
+    PFREE (p_last_ind);
+
+  } while( go );
+} /* free_dti_data_ind_packets_queue() */
+
+
+
+/*
++-----------------------------------------------------------------------+
+| PROJECT : DTILIB                MODULE  : DTI_KERF                    |
+| STATE   : code                  ROUTINE : set_default_para_link_table |
++-----------------------------------------------------------------------+
+ *
+ *  Set the default parameter for DTI_LINK
+ *
+ */
+
+GLOBAL void set_default_para_link_table (DTI_HANDLE hDTI,
+                                         DTI_LINK *link,
+                                         U32 link_id,
+                                         U8 direction)
+{
+  /*
+   * Free primitives and descs if there are any in the queue
+   */
+  free_dti_data_ind_packets_queue(hDTI, link->dti_data_ind);
+  link->dti_data_ind = NULL;
+  /*
+   * Set the other parameter to default
+   */
+  link->link_id       = link_id;
+  link->direction     = direction;
+  link->version       = D_VERSION;
+  link->link_options  = D_LINK_OPTIONS;
+  link->instance      = D_INSTANCE;
+  link->interfac      = D_INTERFACE;
+  link->channel       = D_CHANNEL;
+  link->link_handle   = D_LINK_HANDLE;
+  link->queue_size    = D_QUEUE_SIZE;
+  link->queue_len     = 0;
+  link->connect_state = D_CONNECT_STATE;
+  link->rx_state      = DTI_RX_IDLE;
+  link->tx_state      = DTI_TX_IDLE;
+} /* set_default_para_link_table() */
+
+
+
+/*
++-----------------------------------------------------------------------+
+| PROJECT : DTILIB                MODULE  : DTI_int										                    |
+| STATE   : code                  ROUTINE : init_link_table             									|
++-----------------------------------------------------------------------+
+ *
+ *  Set the init parameter for DTI_LINK
+ *
+ */
+
+GLOBAL void init_link_table (DTI_LINK *link)
+{
+  link->link_id          = D_FREE_LINK_ID;
+  link->direction        = D_DIRECTION;
+  link->version          = D_VERSION;
+  link->link_options     = D_LINK_OPTIONS;
+  link->instance         = D_INSTANCE;
+  link->interfac         = D_INTERFACE;
+  link->link_handle      = D_LINK_HANDLE;
+  link->queue_size       = D_QUEUE_SIZE;
+  link->queue_len        = 0;
+  link->channel          = D_CHANNEL;
+  link->dti_data_ind     = NULL;
+  link->connect_state    = D_CONNECT_STATE;
+  link->rx_state         = DTI_RX_IDLE;
+  link->tx_state         = DTI_TX_IDLE;
+  link->next_link        = D_LINK;
+#ifdef FF_TCP_IP
+  link->ul_next_atp_data = 0;
+  link->atp_tx_state     = ATP_TX_FLOW_ON;
+  link->dti_id           = 0;
+  link->entity_db        = (U32) NULL;
+  link->port_nb          = 0;
+#endif /* FF_TCP_IP */
+} /* init_link_table() */
+
+
+
+/*
++--------------------------------------------------------------------+
+| PROJECT : DTILIB                MODULE  : DTI_KERF                 |
+| STATE   : code                  ROUTINE : free_dti_link_structure  |
++--------------------------------------------------------------------+
+
+ *
+ *  Free DTI link structures, DTI_LINK.
+ *
+ */
+
+GLOBAL void free_dti_link_structure(DTI_HANDLE hDTI)
+{
+  DTI_LINK *link_last, *link;
+  BOOL go = TRUE;
+
+  trace_function(hDTI->handle,
+                 "free_dti_link_structure()", /*lint !e605 Increase in pointer capability */
+                 hDTI->entity_options);
+
+  /*
+   *    Check if there are any packets to free
+   */
+  if(hDTI->first_link EQ D_LINK)
+    return;
+
+  link = (DTI_LINK *) hDTI->first_link;
+
+  do {
+    link_last = link;
+
+    if(link->next_link NEQ D_LINK)
+      link = (DTI_LINK *) link->next_link;
+    else
+      go = FALSE;
+
+     /*
+      *  Free the dti_queue
+      */
+    free_dti_data_ind_packets_queue(hDTI, link_last->dti_data_ind);
+
+    /*
+     *  Free a link structure
+     */
+    MFREE (link_last);
+
+  } while( go );
+
+} /* free_dti_link_structure() */
+
+/*
++--------------------------------------------------------------------+
+| PROJECT : DTILIB                MODULE  : DTI_KERF                 |
+| STATE   : code                  ROUTINE : trace_message            |
++--------------------------------------------------------------------+
+
+ *
+ *  Create a string
+ *
+ */
+
+GLOBAL void trace_message (T_HANDLE handle,
+                          char *str,
+                          U32 entity_options)
+{
+  if(! (entity_options & DTI_NO_TRACE) )
+  {
+    TRACE_EVENT(str);
+  }
+} /*lint !e715 handle not referenced trace_message() */
+
+
+
+/*
++--------------------------------------------------------------------+
+| PROJECT : DTILIB                MODULE  : DTI_KERF                 |
+| STATE   : code                  ROUTINE : trace_message_link_id    |
++--------------------------------------------------------------------+
+
+ *
+ *  Create a string and a number
+ *
+ */
+
+GLOBAL void trace_message_link_id (T_HANDLE handle,
+                                  char *str,
+                                  U32 link_id,
+                                  U32 entity_options)
+{
+  if(! (entity_options & DTI_NO_TRACE) )
+  {
+    TRACE_EVENT_P2("%s - link_id=%d", str, link_id);
+  }
+} /*lint !e715 handle not referenced trace_message_link_id() */
+
+
+
+/*
++--------------------------------------------------------------------+
+| PROJECT : DTILIB                MODULE  : DTI_KERF                 |
+| STATE   : code                  ROUTINE : trace_message_l_dl       |
++--------------------------------------------------------------------+
+
+ *
+ *  Create a string with link_id and data length
+ *
+ */
+
+GLOBAL void trace_message_l_dl (T_HANDLE handle,
+                                char *str,
+                                U32 link_id,
+                                U16 length,
+                                U32 entity_options)
+{
+  if(! (entity_options & DTI_NO_TRACE) )
+  {
+    TRACE_EVENT_P3("%s - link_id=%d length=%d", str, link_id, length);
+  }
+} /* trace_message_l_dl() */
+
+
+
+/*
++--------------------------------------------------------------------+
+| PROJECT : DTILIB                MODULE  : DTI_KERF                 |
+| STATE   : code                  ROUTINE : trace_message_iic        |
++--------------------------------------------------------------------+
+
+ *
+ *  Create a string and a number
+ *
+ */
+
+GLOBAL void trace_message_iic (T_HANDLE handle,
+                              char *str,
+                              U8 instance,
+                              U8 interfac,
+                              U8 channel,
+                              U32 entity_options)
+{
+  if(!(entity_options & DTI_NO_TRACE))
+  {
+    TRACE_EVENT_P4("%s - instance=%d interface=%d channel=%d",
+                   str,
+                   instance,
+                   interfac,
+                   channel);
+  }
+} /*lint !e715 handle not referenced trace_message_iic() */
+
+
+
+/*
++--------------------------------------------------------------------+
+| PROJECT : DTILIB                MODULE  : DTI_KERF                 |
+| STATE   : code                  ROUTINE : trace_message_l_e        |
++--------------------------------------------------------------------+
+
+ *
+ *  Create a string and a number
+ *
+ */
+
+GLOBAL void trace_message_l_e (T_HANDLE handle,
+                              char *str,
+                              U32 link_id,
+                              char* entity,
+                              U32 entity_options)
+{
+  if(!(entity_options & DTI_NO_TRACE))
+  {
+    TRACE_EVENT_P3("%s - link_id=%d neighbor_entity=%s",
+                   str,
+                   link_id,
+                   entity);
+  }
+} /*lint !e715 handle not referenced trace_message_l_e() */
+
+/*
++--------------------------------------------------------------------+
+| PROJECT : DTILIB                MODULE  : DTI_KERF                 |
+| STATE   : code                  ROUTINE : trace_function           |
++--------------------------------------------------------------------+
+
+ *
+ * Call macro TRACE_FUNKTION if traces are enabled
+ *
+ */
+
+GLOBAL void trace_function( T_HANDLE handle, char *str, U32 entity_options)
+{
+  if(! (entity_options & DTI_NO_TRACE) )
+  {
+    TRACE_FUNCTION (str);
+  }
+} /*lint !e715 handle not referenced trace_function() */
+
+
+
+/*
++--------------------------------------------------------------------+
+| PROJECT : DTILIB       MODULE  :    DTI_KERF                       |
+| STATE   : code         ROUTINE :  get_pointer_link_table_channel   |
++--------------------------------------------------------------------+
+
+ *
+ *  The function searchs an instance and a channel in the database link list
+ *  and returns a pointer to the link list. If there is no link with the same channel and
+ *  the same interface it returns NULL.
+ */
+
+GLOBAL DTI_LINK * get_pointer_link_table_channel (DTI_HANDLE hDTI,
+                                                 U8 instance,
+                                                 U8 interfac,
+                                                 U8 channel)
+{
+  DTI_LINK *link_last, *link;
+  BOOL go = TRUE;
+
+  trace_function(hDTI->handle,
+                 "get_pointer_link_table_channel()", /*lint !e605 Increase in pointer capability */
+                 hDTI->entity_options);
+
+  link = (DTI_LINK *) hDTI->first_link;
+
+  /*
+   *  Check if the link is not set
+   */
+
+  if(link EQ NULL)
+    return NULL;
+
+  do {
+    link_last = link;
+
+    /*
+     *  Search on instance, interface and channal
+     */
+
+    if((link_last->instance EQ instance) AND (link_last->channel EQ channel) AND
+      (link_last->interfac EQ interfac) AND
+      (link_last->link_id NEQ D_FREE_LINK_ID))
+
+      return link_last;
+
+    if(link->next_link NEQ D_LINK)
+      link = (DTI_LINK *) link->next_link;
+    else
+      go = FALSE;
+
+  } while( go );
+
+  return NULL;
+}
+
+
+/*
++--------------------------------------------------------------------+
+| PROJECT : DTILIB                MODULE  : DTI_KERF                 |
+| STATE   : code                  ROUTINE : get_pointer_link_table   |
++--------------------------------------------------------------------+
+
+ *
+ *  The function searchs a link id in the databank link list and returns a
+ *  pointer to the link list. If there is no link_id with the selected direction it
+ *  returns NULL. Note: the direction is used to select between to equal
+ *  links in a link list because it could be 2 channels are connected on one
+ *  instance.
+ */
+
+GLOBAL DTI_LINK * get_pointer_link_table (DTI_HANDLE hDTI,
+                                          U32 select_link_id,
+                                          U8 select_direction)
+{
+  DTI_LINK* link;
+
+  trace_function(hDTI->handle,
+                 "get_pointer_link_table()",
+                 hDTI->entity_options);
+
+  link = (DTI_LINK *) hDTI->first_link;
+
+  /*
+   *  Find the link and return it
+   */
+  while(link NEQ NULL)
+  {
+    if(link->link_id EQ select_link_id)
+      return link;
+
+    link = (DTI_LINK *) link->next_link;
+  }
+
+  return NULL;
+} /* get_pointer_link_table() */
+
+
+
+/*
++--------------------------------------------------------------------+
+| PROJECT : DTILIB                MODULE  : DTI_KERF                 |
+| STATE   : code                  ROUTINE : get_pointer_free_link    |
++--------------------------------------------------------------------+
+
+PURPOSE : The function searches a free link in the database link list
+          and returns a pointer to the link structure. If there is no
+          linkin the database then it returns NULL.
+*/
+
+GLOBAL DTI_LINK * get_pointer_free_link (DTI_HANDLE hDTI)
+{
+  DTI_LINK* link;
+
+  trace_function( hDTI->handle,
+    "get_pointer_free_link()",
+    hDTI->entity_options);
+
+  /*
+   * Search for unused link
+   */
+  link = (DTI_LINK *) hDTI->first_link;
+  while(link)
+  {
+    if(link->connect_state EQ DTI_CLOSED)
+      return link;
+    link = (DTI_LINK*)link->next_link;
+  }
+
+  /*
+   * Search for a link where only DTI_CONNECT_REQ has been received.
+   * This solves the situation when dti_open() is called for a new link
+   * and all links are used by existing links
+   * which are going to be closed and reopened with an other link_id
+   */
+  link = (DTI_LINK *) hDTI->first_link;
+  while(link)
+  {
+    if(link->connect_state EQ DTI_CONNECTING)
+      return link;
+    link = (DTI_LINK*)link->next_link;
+  }
+
+  return NULL;
+} /* get_pointer_free_link() */
+
+
+
+/*
++--------------------------------------------------------------------+
+| PROJECT : DTILIB                MODULE  : DTI_KERF                 |
+| STATE   : code                  ROUTINE : open_comm_channel        |
++--------------------------------------------------------------------+
+
+ *
+ *  This function opens a VSI communication channel. If it's open it will be closed
+ *  and opened new again. The opened handle is returned in the parameter com_handle.
+ */
+
+GLOBAL void open_comm_channel(T_HANDLE entity_handle,
+                             T_HANDLE *com_handle,
+                             char *name,
+                             U32 entity_options)
+{
+
+  trace_function( entity_handle,
+    "open_comm_channel()",
+    entity_options);
+
+  /* Be sure the channel is closed if it was opened before */
+  vsi_c_close (entity_handle, *com_handle);
+
+  /* Open */
+  *com_handle = vsi_c_open(entity_handle, name);
+}
+
+/*
++--------------------------------------------------------------------+
+| PROJECT : DTILIB                MODULE  : DTI_KERF                 |
+| STATE   : code                  ROUTINE : check_dti_version        |
++--------------------------------------------------------------------+
+
+ *
+ *  This function checks the version in a link table.
+ *  and returns TRUE if the same version is found as in the request_version.
+ */
+
+GLOBAL BOOL check_dti_version (DTI_HANDLE hDTI, U32 request_version)
+{
+  trace_function(hDTI->handle,
+                 "check_dti_version()", /*lint !e605 Increase in pointer capability */
+                 hDTI->entity_options);
+
+  /*
+   *  DTILIB has to be able to use older versions too.
+   *  NOTE: this has been D_VERSION <= request_version until Aug-2002
+   *        just an error or some sort of intricate reasoning??
+   */
+  if(D_VERSION >= request_version)
+    return TRUE;
+  else
+    return FALSE;
+}
+
+/*
++--------------------------------------------------------------------+
+| PROJECT : DTILIB                MODULE  : DTI_KERF                 |
+| STATE   : code                  ROUTINE : validate_open_parameters |
++--------------------------------------------------------------------+
+
+ *
+ *  This function validates the open-parameters
+ */
+GLOBAL DTI_RESULT validate_open_parameters(DTI_HANDLE hDTI,
+                                          U32 link_id,
+                                          U8 *queue_size,
+                                          U8 *direction,
+                                          U32 *link_options,
+                                          U32 version,
+                                          U8 *neighbor_entity)
+{
+  trace_function(hDTI->handle,
+                 "validate_open_parameters()", /*lint !e605 Increase in pointer capability */
+                 hDTI->entity_options);
+
+  /*
+   *  Check version of peer dtilib
+   */
+  if (
+    check_dti_version
+      (
+      hDTI,
+      version
+      ) EQ FALSE
+    )
+  {
+    trace_message_link_id(hDTI->handle,
+      "DTI ERROR: Wrong DTI version", /*lint !e605 Increase in pointer capability */
+      link_id,
+      hDTI->entity_options);
+    return DTI_E_FAIL;
+  }
+
+  /*
+   * Legacy
+   */
+
+  /*
+   *  Check if open with the NULL device.
+   */
+  if (strcmp ((CHAR*)neighbor_entity, NULL_NAME) EQ 0)
+  {
+    *direction = DTI_NULL_LINK;
+  }
+  if (*link_options EQ FLOW_CNTRL_ENABLED)
+  {
+    if (*queue_size EQ DTI_QUEUE_DISABLED)
+    {
+      *link_options = DTI_QUEUE_UNUSED;
+    }
+    else if (*queue_size EQ DTI_QUEUE_UNLIMITED)
+    {
+      *link_options = DTI_QUEUE_UNBOUNDED;
+    }
+    else
+    {
+      /*
+       * Set default behaviour
+       */
+      *link_options = DTI_QUEUE_RM_LIFO;
+    }
+  }
+
+  /*
+   * Ensure consistency
+   */
+  if((*link_options EQ DTI_QUEUE_UNUSED) OR
+     (*link_options EQ DTI_FLOW_CNTRL_DISABLED) OR
+     (*link_options EQ DTI_QUEUE_UNBOUNDED))
+  {
+    *queue_size = 0;
+  }
+  else if(*queue_size EQ 0)
+  {
+    *link_options = DTI_QUEUE_UNUSED;
+  }
+
+  return DTI_S_OK;
+}
+
+
+/*
++-----------------------------------------------------------------------+
+| PROJECT : DTILIB                    MODULE  : DTI_KERF                |
+| STATE   : code                      ROUTINE : set_link_parameter      |
++-----------------------------------------------------------------------+
+
+ *
+ *  Set parameter in a link desc.
+ */
+
+GLOBAL void set_open_para_link_table (DTI_HANDLE hDTI,
+                                      DTI_LINK *link,
+                                      U32   version,
+                                      U32   link_options,
+                                      U8    instance,
+                                      U8    interfac,
+                                      U8    channel,
+                                      U8    queue_size,
+                                      U8    connect_state)
+{
+  trace_function(hDTI->handle,
+                 "set_open_para_link_table()",
+                 hDTI->entity_options);
+
+  /*
+   * Free primitives and descs if there are any in the queue.
+   */
+  free_dti_data_ind_packets_queue(hDTI, link->dti_data_ind);
+  link->dti_data_ind = NULL;
+  /*
+   * set parameters as requested
+   */
+  link->version       = version;
+  link->instance      = instance;
+  link->interfac      = interfac;
+  link->channel       = channel;
+  link->link_handle   = D_LINK_HANDLE;
+  link->queue_len     = 0;
+  link->rx_state      = DTI_RX_IDLE;
+  link->tx_state      = DTI_TX_BUFFER_FULL;
+  link->connect_state = connect_state;
+  link->queue_size    = queue_size;
+  link->link_options  = link_options;
+  /*
+   * the following structure is needed for ATP links
+   */
+#ifdef FF_TCP_IP
+  link->entity_db     = D_HANDLE;
+  link->port_nb       = 0;
+#endif /* FF_TCP_IP */
+} /* set_open_para_link_table() */
+
+
+
+/*
++--------------------------------------------------------------------+
+| PROJECT : DTILIB                MODULE  : DTI_KERF                 |
+| STATE   : code                  ROUTINE : dti_resolve_link_id      |
++--------------------------------------------------------------------+
+
+ *
+ * This function returns the link_id for the given
+ * instance/interface/channel.
+ *
+ * This is to be used to identify primitives sent from the entity to ACI
+ *
+ * return value:  TRUE if associated link_id is found
+ *                FALSE, otherwise
+ */
+
+GLOBAL BOOL dti_resolve_link_id (DTI_HANDLE hDTI,
+                                 U8 instance,
+                                 U8 interfac,
+                                 U8 channel,
+                                 U32 *link_id)
+{
+  DTI_LINK *link;
+
+  trace_function(hDTI->handle,
+                 "dti_resolve_link_id()", /*lint !e605 Increase in pointer capability */
+                 hDTI->entity_options);
+
+  if((link = get_pointer_link_table_channel(hDTI,
+                                            instance,
+                                            interfac,
+                                            channel)) EQ NULL)
+  {
+    return FALSE;
+  }
+
+  *link_id = link->link_id;
+  return TRUE;
+} /* dti_resolve_link_id() */
+
+/*
++--------------------------------------------------------------------+
+| PROJECT : DTILIB                MODULE  : DTI_KERF                 |
+| STATE   : code                  ROUTINE : put_dti_data_ind_in_queue|
++--------------------------------------------------------------------+
+
+ *
+ *  This function puts a dti_data_req primitive in queue.
+ */
+
+GLOBAL void put_dti_data_ind_in_queue( DTI_HANDLE hDTI, DTI_LINK *link,
+  T_DTI2_DATA_IND *dti_data_ind)
+{
+
+  if (hDTI->handle NEQ 0)
+  {
+    trace_function( hDTI->handle,
+      "put_dti_data_ind_in_queue()",
+      hDTI->entity_options);
+  }
+
+  dti_data_ind->link_id = 0;
+
+  /*
+   * Put in the first data packet.
+   * When using the old SAP the link->queue len can be 0 or 1
+   */
+  {
+    T_DTI2_DATA_IND *p_ind;
+    U8 chk     = 1;
+
+    if(link->queue_len EQ 0)
+    {
+      link->dti_data_ind = dti_data_ind;
+      link->queue_len++;
+      return;
+    }
+
+
+    /* Now put more packets in the queue and put the new one on the last position */
+    p_ind = link->dti_data_ind;
+
+    /*
+     *    Search the last packet in queue.
+     */
+    while(p_ind->link_id NEQ 0)
+    {
+      p_ind = (T_DTI2_DATA_IND *) p_ind->link_id;
+      chk++;
+    }
+
+    p_ind->link_id = (U32) dti_data_ind;
+
+    /*
+     * Check the queue length.
+     */
+    if(chk != link->queue_len)
+    {
+      trace_message_link_id(hDTI->handle,
+        "DTI ERROR: Write to queue error", /*lint !e605 Increase in pointer capability */
+        link->link_id,
+        hDTI->entity_options);
+      return;
+    }
+    link->queue_len++;
+  }
+}
+
+
+
+/*
++--------------------------------------------------------------------+
+| PROJECT : DTILIB             MODULE  : DTI_KERF                    |
+| STATE   : code               ROUTINE : get_dti_data_ind_from_queue |
++--------------------------------------------------------------------+
+
+ *
+ *  This function gets a dti_data_ind primitive from queue. If there is
+ *  no packet in the queue it returns NULL.
+ */
+
+GLOBAL T_DTI2_DATA_IND * get_dti_data_ind_from_queue(DTI_HANDLE hDTI,
+                                                     DTI_LINK *link)
+{
+  T_DTI2_DATA_IND *ret_dti_data_ind;
+
+  trace_function( hDTI->handle,
+    "get_dti_data_ind_from_queue()",
+    hDTI->entity_options);
+
+  /*
+   *    Is there any packet in the queue ?
+   */
+  if(link->queue_len EQ 0)
+  {
+    return NULL;
+  }
+  /*
+   *    Set the second data packet on the first position.
+   */
+  ret_dti_data_ind = link->dti_data_ind;
+  /*
+   *    Set the queue length
+   */
+  link->queue_len--;
+  /*
+   *  Put the next data packet in position.
+   */
+  link->dti_data_ind = (T_DTI2_DATA_IND *)link->dti_data_ind->link_id;
+
+  return (ret_dti_data_ind);
+} /* get_dti_data_ind_from_queue() */
+
+
+
+/*
++--------------------------------------------------------------------+
+| PROJECT : DTILIB        MODULE  : DTI_KERF                         |
+| STATE   : code          ROUTINE : get_last_dti_data_ind_from_queue |
++--------------------------------------------------------------------+
+
+ *
+ * This function gets a dti_data_ind primitive from queue. If there is
+ * no packet in the queue it returns NULL.
+ */
+
+LOCAL T_DTI2_DATA_IND * get_last_dti_data_ind_from_queue(DTI_HANDLE hDTI,
+                                                         DTI_LINK *link)
+{
+  T_DTI2_DATA_IND **last_dti_data_ind;
+  T_DTI2_DATA_IND *ret_dti_data_ind;
+
+  trace_function(hDTI->handle,
+    "get_last_dti_data_ind_from_queue()",
+    hDTI->entity_options);
+
+  /*
+   * Is there any packet in the queue?
+   */
+  if(link->queue_len EQ 0)
+  {
+    return NULL;
+  }
+  /*
+   * Get the last data packet
+   */
+  last_dti_data_ind = &(link->dti_data_ind);
+  while((*last_dti_data_ind)->link_id NEQ 0)
+  {
+    last_dti_data_ind = (T_DTI2_DATA_IND **) &((*last_dti_data_ind)->link_id);
+  }
+  ret_dti_data_ind = *last_dti_data_ind;
+  /*
+   * Set the queue length
+   */
+  link->queue_len--;
+  /*
+   * remove the data packet from queue.
+   */
+  *last_dti_data_ind = 0;
+
+  return (ret_dti_data_ind);
+} /* get_last_dti_data_ind_from_queue() */
+
+
+
+/*
++--------------------------------------------------------------------+
+| PROJECT : DTILIB        MODULE  : DTI_KERF                         |
+| STATE   : code          ROUTINE : put_dti_data_ind_in_queue_managed|
++--------------------------------------------------------------------+
+
+ *
+ *  This function puts a dti_data_req primitive in queue.
+ *  If the queue is full, it acts accordingly
+ */
+
+GLOBAL void put_dti_data_ind_in_queue_managed (DTI_HANDLE hDTI,
+                                              DTI_LINK *link,
+                                              T_DTI2_DATA_IND *dti_data_ind)
+{
+  trace_function(hDTI->handle,
+                 "put_dti_data_ind_in_queue_managed()", /*lint !e605 Increase in pointer capability */
+                 hDTI->entity_options);
+
+  /*
+   * Put new data packet into the queue.
+   */
+  if(link->link_options NEQ DTI_QUEUE_UNUSED)
+  {
+    put_dti_data_ind_in_queue(hDTI, link, dti_data_ind);
+  }
+
+  /*
+   * If queue full - send signal to entity.
+   */
+  switch (link->link_options)
+  {
+  case DTI_QUEUE_UNBOUNDED:
+  case DTI_QUEUE_WATERMARK:
+    break;
+
+  case DTI_QUEUE_UNUSED:
+    /* free data primitive since we cannot handle it */
+
+    trace_message_link_id(hDTI->handle,
+      "DTI ERROR: No send queue available, discarding data packet", /*lint !e605 Increase in pointer capability */
+      link->link_id,
+      hDTI->entity_options);
+
+    mfree_desc (hDTI, &dti_data_ind->desc_list2);
+    PFREE (dti_data_ind);
+    break;
+
+  case DTI_QUEUE_RM_FIFO:
+    if (link->queue_len > link->queue_size)
+    {
+      T_DTI2_DATA_IND *free_dti_data_ind
+        = get_dti_data_ind_from_queue(hDTI, link);
+
+      trace_message_link_id(hDTI->handle,
+        "Send queue full, discarding oldest data packet", /*lint !e605 Increase in pointer capability */
+        link->link_id,
+        hDTI->entity_options);
+
+      mfree_desc (hDTI, &free_dti_data_ind->desc_list2);
+      PFREE (free_dti_data_ind);
+    }
+    break;
+
+  case DTI_QUEUE_RM_LIFO:
+    if (link->queue_len > link->queue_size)
+    {
+      T_DTI2_DATA_IND *free_dti_data_ind
+        = get_last_dti_data_ind_from_queue(hDTI, link);
+
+      trace_message_link_id(hDTI->handle,
+        "Send queue full, discarding newest data packet", /*lint !e605 Increase in pointer capability */
+        link->link_id,
+        hDTI->entity_options);
+
+      mfree_desc (hDTI, &free_dti_data_ind->desc_list2);
+      PFREE (free_dti_data_ind);
+    }
+    break;
+
+  default:
+    trace_message_link_id(hDTI->handle,
+      "DTI ERROR: Unknown state for link_options", /*lint !e605 Increase in pointer capability */
+      link->link_id,
+      hDTI->entity_options);
+    break;
+  }
+} /* put_dti_data_ind_in_queue_managed() */
+
+
+
+/*
++--------------------------------------------------------------------+
+| PROJECT : DTILIB                    MODULE  : DTI_KERF             |
+| STATE   : code                      ROUTINE : dti_make_new_desc    |
++--------------------------------------------------------------------+
+
+ *
+ *  Malloc a knew desc. Init a buffer 0 if buff_init_0 is TRUE.
+ *
+ */
+
+BOOL dti_make_new_desc( DTI_HANDLE hDTI, T_desc2 **p_desc_new,
+  U16 malloc_len, BOOL buff_init_0)
+{
+#define VSI_CALLER hDTI->handle,
+
+  trace_function( hDTI->handle,
+    "dti_make_new_desc()",
+    hDTI->entity_options);
+
+  MALLOC ((*p_desc_new), ((U16)(sizeof(T_desc2)-1 + malloc_len)));
+
+  if(*p_desc_new EQ 0)
+    return(FALSE);
+
+  if(buff_init_0)
+  {
+    U16 i;
+    for(i=0; i<malloc_len; i++)
+      (*p_desc_new)->buffer[i] = 0;
+  }
+  (*p_desc_new)->len    = malloc_len;
+  (*p_desc_new)->next   = 0;
+  (*p_desc_new)->offset = 0;
+  (*p_desc_new)->size   = (*p_desc_new)->len + (*p_desc_new)->offset;
+  return(TRUE);
+
+#undef VSI_CALLER
+}
+
+
+/*
++--------------------------------------------------------------------+
+| PROJECT : DTILIB                    MODULE  : DTI_KERF             |
+| STATE   : code                      ROUTINE : mfree_desc           |
++--------------------------------------------------------------------+
+
+ *
+ *  Free the descs in a desc list.
+ *
+ */
+
+
+GLOBAL void mfree_desc(DTI_HANDLE hDTI, T_desc_list2 * desc_list2)
+{
+  BOOL go = TRUE;
+  T_desc2 *p_desc_last, *p_desc;
+
+  trace_function( hDTI->handle,
+    "mfree_desc()",
+    hDTI->entity_options);
+
+  if (desc_list2 EQ NULL)
+    return;
+
+  if (desc_list2->first EQ 0)
+    return;
+
+  p_desc = (T_desc2 *) desc_list2->first;
+
+  do {
+    p_desc_last = p_desc;
+
+    if(p_desc->next >0)
+      p_desc = (T_desc2 *) p_desc->next;
+    else
+      go = FALSE;
+
+    MFREE (p_desc_last);
+
+  } while( go );
+}
+
+
+/*
++-----------------------------------------------------------------------+
+| PROJECT : DTILIB                    MODULE  : DTI_KERF                |
+| STATE   : code                      ROUTINE : close_link_with_signal  |
++-----------------------------------------------------------------------+
+
+ *
+ *  Close a link.
+ */
+
+GLOBAL void close_link_with_signal(DTI_HANDLE hDTI, DTI_LINK *link)
+{
+  U8 hlp_instance, hlp_interface;
+  U8 hlp_channel;
+
+  trace_function( hDTI->handle,
+    "close_link_with_signal()",
+    hDTI->entity_options);
+
+  /*
+   *  Close communication channel
+   */
+  vsi_c_close (hDTI->handle, link->link_handle);
+
+  hlp_instance   =   link->instance;
+  hlp_interface  =   link->interfac;
+  hlp_channel    =   link->channel;
+
+  /*
+   *  Set the default parameter and call the callback function.
+   */
+
+  set_default_para_link_table(hDTI,link, D_FREE_LINK_ID, D_DIRECTION);
+
+  /*
+   *  Call the callback function.
+   */
+
+  hDTI->sig_callback(hlp_instance, hlp_interface, hlp_channel,
+    DTI_REASON_CONNECTION_CLOSED, NULL);
+
+  /*
+   * Note: Any flow control and any data primitive are now silently discarded.
+   */
+}
+
+
+
+/*
++-------------------------------------------------------------------------+
+| PROJECT : DTILIB                MODULE  : DTI_KERF                      |
+| STATE   : code                  ROUTINE : set_reset_req_para_link_table |
++-------------------------------------------------------------------------+
+ *
+ *  Set parameter by reset.
+ *
+ */
+
+GLOBAL void set_reset_req_para_link_table(DTI_HANDLE hDTI, DTI_LINK *link)
+{
+  /*
+   * Free primitives and descs if there are any in the queue.
+   */
+  free_dti_data_ind_packets_queue(hDTI, link->dti_data_ind);
+  link->dti_data_ind = NULL;
+  /*
+   * Set the other parameters
+   */
+  link->queue_len     = 0;
+  link->connect_state = DTI_IDLE;
+} /* set_reset_req_para_link_table() */