+
−/* 
+
−+----------------------------------------------------------------------------- 
+
−|  Project :  CSD (8411)
+
−|  Modul   :  tra_dnf.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 defines the procedures and functions for TRA
+
−+----------------------------------------------------------------------------- 
+
−*/ 
+
−
+
−#ifndef TRA_DNF_C
+
−#define TRA_DNF_C
+
−#endif
+
−
+
−#define ENTITY_L2R
+
−
+
−/*==== INCLUDES ===================================================*/
+
−
+
−#include <string.h>
+
−#include "typedefs.h"
+
−#include "pconst.cdg"
+
−#include "vsi.h"
+
−#include "macdef.h"
+
−#include "custom.h"
+
−#include "gsm.h"
+
−#include "prim.h"
+
−#include "pei.h"
+
−#include "tok.h"
+
−#include "dti.h"
+
−
+
−#include "cl_ribu.h"
+
−#include "tra_pei.h"
+
−#include "tra.h"
+
−
+
−/*==== CONST =======================================================*/
+
−
+
−/*==== TYPES =======================================================*/
+
−
+
−/*==== VAR EXPORT ==================================================*/
+
−
+
−/*==== VAR LOCAL ===================================================*/
+
−
+
−/*==== FUNCTIONS ===================================================*/
+
−
+
−/*
+
−+------------------------------------------------------------------------------
+
−|  Function    : dl_init
+
−+------------------------------------------------------------------------------
+
−|  Description : initialise the l2r data for the downlink process
+
−|
+
−|  Parameters  : T_TRA_DN *ddl
+
−|
+
−|
+
−|  Return      : -
+
−+------------------------------------------------------------------------------
+
−*/
+
−
+
−GLOBAL void dl_init(T_TRA_DN *ddl)
+
−{
+
−  TRACE_FUNCTION ("dl_init()");
+
−
+
−  ddl->sa               = FL_INACTIVE;
+
−  ddl->sb               = FL_INACTIVE;
+
−  ddl->x                = FL_INACTIVE;
+
−  ddl->prim             = NULL;       /* meaning: no DTI2_DATA_IND allocated yet */
+
−  ddl->Brk_dti_data_ind = NULL;
+
−
+
−  SET_STATE (DN, DN_INACTIVE);
+
−}
+
−
+
−/*
+
−+------------------------------------------------------------------------------
+
−|  Function    : dl_send_data_ind
+
−+------------------------------------------------------------------------------
+
−|  Description : This procedure copies data from the downlink ring buffer
+
−|                into a a dti_data_ind primitive and sends this primitive
+
−|                to the upper layer.
+
−|                (Just the SDU data are copied into the ring buffer by RA!)
+
−|  Parameters  : -
+
−|
+
−|
+
−|  Return      : -
+
−+------------------------------------------------------------------------------
+
−*/
+
−
+
−GLOBAL BOOL dl_send_data_ind(void)
+
−{
+
−  T_TRA_DN *ddl = &tra_data->dn;
+
−
+
−  TRACE_FUNCTION ("dl_send_data_ind()");
+
−
+
−  if (ddl->prim NEQ NULL) /* check for existing dti_data_ind */
+
−  {
+
−    ddl->prim->parameters.st_lines.st_line_sa   = ddl->sa;
+
−    ddl->prim->parameters.st_lines.st_line_sb   = ddl->sb;
+
−    ddl->prim->parameters.st_lines.st_flow      = ddl->x;
+
−    ddl->prim->parameters.st_lines.st_break_len = DTI_BREAK_OFF;
+
−    
+
−    ddl->prim->parameters.p_id = DTI_PID_UOS;
+
−    ddl->prim->link_id = 0; /* dummy init */
+
−
+
−    dti_send_data (l2r_hDTI, TRA_DTI_UP_INSTANCE, TRA_DTI_UP_INTERFACE, TRA_DTI_UP_CHANNEL, ddl->prim);
+
−    ddl->prim = NULL;
+
−    return TRUE;
+
−  }
+
−  else
+
−  {
+
−    TRACE_EVENT("no prim to send");
+
−  }
+
−  return FALSE;
+
−}
+
−
+
−/*
+
−+------------------------------------------------------------------------------
+
−|  Function    : dl_prep_data_ind
+
−+------------------------------------------------------------------------------
+
−|  Description : This procedure appends data from the downlink ring buffer
+
−|                to a already allocated dti_data_ind primitive
+
−|
+
−|  Parameters  : -
+
−|
+
−|
+
−|  Return      : -
+
−+------------------------------------------------------------------------------
+
−*/
+
−
+
−GLOBAL void dl_prep_data_ind(T_FD *pFD)
+
−{
+
−  T_desc2* desc;   /* block to be copied to */
+
−  T_desc2* p_desc; /* prim to be copied to */
+
−
+
−  T_TRA_DN *ddl = &tra_data->dn;
+
−
+
−  TRACE_FUNCTION ("dl_prep_data_ind()");
+
−
+
−  if (ddl->prim EQ NULL) /* check for existing dti_data_ind */
+
−  {
+
−    PALLOC (dti_data_ind, DTI2_DATA_IND); /* start new prim */
+
−    ddl->prim = dti_data_ind;
+
−
+
−    ddl->prim->desc_list2.list_len = 0;
+
−
+
−    MALLOC (desc, TRA_DTI_BUF_SIZE);      /* contains header bytes, too! */
+
−
+
−    dti_data_ind->desc_list2.first =(ULONG) desc;
+
−
+
−    p_desc         = (T_desc2 *) dti_data_ind->desc_list2.first;
+
−    p_desc->len    = 0;
+
−    p_desc->size   = 0;
+
−    p_desc->offset = 0;
+
−    p_desc->next   = 0;
+
−
+
−    ddl->list_end = desc;   /* set flag for next entrance without sending */
+
−  }
+
−  else
+
−  {
+
−    p_desc = ddl->list_end; /* append to remembered list end */
+
−  }
+
−
+
−  if (!pFD) /* status bits changed; no data received */
+
−  {
+
−    return;
+
−  }
+
−
+
−  if ((TRA_DTI_BUF_SIZE - p_desc->len - sizeof(T_desc2) + 1) >= MAX_SDU_SIZE)
+
−  {
+
−    memcpy(&p_desc->buffer[p_desc->len], pFD->buf, pFD->len); /* copy data from ring buffer */
+
−  }
+
−  else /* start new block */
+
−  {
+
−    MALLOC (desc, (USHORT)TRA_DTI_BUF_SIZE);
+
−    p_desc->next   = (ULONG) desc;
+
−
+
−    /* Initialize the new block's fields to zero */
+
−    p_desc = (T_desc2 *)p_desc->next;
+
−    p_desc->len    = 0;
+
−    p_desc->next   = 0;
+
−    p_desc->size   = 0;
+
−    p_desc->offset = 0; /* temporary solution */
+
−
+
−    memcpy(&p_desc->buffer[p_desc->len], pFD->buf, pFD->len); /* copy data from ring buffer */
+
−    ddl->list_end = p_desc;                                     /* write back start of last list */
+
−  }
+
−  p_desc->len += pFD->len;
+
−  p_desc->size = p_desc->len;
+
−  ddl->prim->desc_list2.list_len += pFD->len;
+
−}
+
−
+
−/*
+
−+------------------------------------------------------------------------------
+
−|  Function    : rbm_init
+
−+------------------------------------------------------------------------------
+
−|  Description :
+
−|
+
−|  Parameters  :
+
−|
+
−|  Return      : -
+
−+------------------------------------------------------------------------------
+
−*/
+
−
+
−GLOBAL void rbm_init(T_TRA_DN *ddl)
+
−{
+
−  TRACE_FUNCTION ("rbm_init()");
+
−
+
−  cl_ribu_create(&tra_data->dn.ribu, MAX_SDU_SIZE, TRA_DLR_DEPTH);
+
−}
+
−
+
−/*
+
−+------------------------------------------------------------------------------
+
−|  Function    : tra_get_next_FrameDesc
+
−+------------------------------------------------------------------------------
+
−|  Description : This function is called from the RA.
+
−|                It returns the frame descriptor for that buffer,
+
−|                which the RA has to write in the received frame.
+
−|
+
−|                WRAPPER: Get frame descriptor for Layer 1 (TI)
+
−|  Parameters  : -
+
−|
+
−|  Return      : -
+
−+------------------------------------------------------------------------------
+
−*/
+
−
+
−GLOBAL T_FD *tra_get_next_FrameDesc(void)
+
−{
+
−  return (cl_ribu_get_new_frame_desc(tra_data->dn.ribu));
+
−}