--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/g23m-gprs/grlc/grlc_measf.c	Fri Oct 16 06:25:50 2020 +0000
@@ -0,0 +1,155 @@
+/* 
++----------------------------------------------------------------------------- 
+|  Project :  GPRS (8441)
+|  Modul   :  GRLC
++----------------------------------------------------------------------------- 
+|  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 module implements local functions for service
+|             MEAS of entity GRLC.
++----------------------------------------------------------------------------- 
+*/ 
+
+#ifndef GRLC_MEASF_C
+#define GRLC_MEASF_C
+#endif /* #ifndef GRLC_MEASF_C */
+
+#define ENTITY_GRLC
+
+/*==== INCLUDES =============================================================*/
+
+#include "typedefs.h"
+#include "vsi.h"
+#include "macdef.h"
+#include "gprs.h"
+#include "gsm.h"
+#include "ccdapi.h"
+#include "prim.h"
+#include "message.h"
+#include "grlc.h"
+#include "grlc_measf.h"
+
+/*==== CONST ================================================================*/
+
+#define I_LEVEL_MIN             I_LEVEL_0
+#define I_LEVEL_0               0    /* i.lev. is greater than C                  */
+#define I_LEVEL_15              15   /* i.lev. is less than or equal to C - 28 dB */    
+#define I_LEVEL_MAX             I_LEVEL_15
+#define I_LEVEL_GAMMA_0_SKIPPED 0xF0 /* used for tracing                          */
+#define I_LEVEL_GAMMA_1_SKIPPED 0xF1 /* used for tracing                          */
+#define I_LEVEL_GAMMA_2_SKIPPED 0xF2 /* used for tracing                          */
+#define I_LEVEL_GAMMA_3_SKIPPED 0xF3 /* used for tracing                          */
+#define I_LEVEL_STATE_MISMATCH  0xFD /* used for tracing                          */
+#define I_LEVEL_IDX_TO_SMALL    0xFE /* used for tracing                          */
+#define I_LEVEL_NOT_AVAIL       0xFF /* used for tracing                          */
+
+/*==== LOCAL VARS ===========================================================*/
+
+/*==== LOCAL TYPES===========================================================*/
+
+/*==== PUBLIC FUNCTIONS =====================================================*/
+/*
++------------------------------------------------------------------------------
+| Function    : meas_c_calc_mean 
++------------------------------------------------------------------------------
+| Description : This function calculates the mean of the received signal level
+|               of the four normal bursts that compose a block. It returns
+|               the amount of bursts with valid receibed signal values.
+|
+| Parameters  : burst_level - receive signal level of the first valid downlink
+|                             PDCH radio block
+|               radio_freq  - radio frequency of TDMA frame within a
+|                             radio block
+|               ss_block    - mean of the received signal level
+|               pb_rdc      - Pb reduction
+|
++------------------------------------------------------------------------------
+*/
+GLOBAL UBYTE meas_c_calc_mean ( UBYTE              *burst_level,
+                                USHORT             *radio_freq,
+                                ULONG              *ss_block,
+                                UBYTE              *pb_rdc,
+                                T_CGRLC_freq_param *freq_param )
+{ 
+  UBYTE i;            /* used for counting         */
+  UBYTE vld_smpl = 0; /* valid measurement samples */
+
+  TRACE_FUNCTION( "meas_c_calc_mean" );
+
+  *pb_rdc   = 0;
+  *ss_block = 0;
+
+  /* add up all measurement data */
+  for( i = 0; i < MAC_BURST_PER_BLOCK; i++ )
+  {
+    if( burst_level[i] NEQ MAC_RXLEV_NONE ) 
+    {
+      vld_smpl++;      
+
+      *ss_block += burst_level[i];
+
+      if( !( grlc_data->tm.freq_param.pdch_hopping EQ FALSE           AND 
+             grlc_data->tm.freq_param.bcch_arfcn   EQ radio_freq[i] )     )
+      {
+        *pb_rdc += 1;
+      }
+    }
+  }
+
+  /* calculate the mean */
+  if( vld_smpl )
+  {
+    *ss_block = ( *ss_block * MEAS_ACRCY ) / vld_smpl;
+  }
+
+  return( vld_smpl );
+} /* meas_c_calc_mean() */
+
+/*
++------------------------------------------------------------------------------
+| Function    : meas_int_fill_rel_iLevel
++------------------------------------------------------------------------------
+| Description : ...
+|
+| Parameters  : ...
+|
++------------------------------------------------------------------------------
+*/
+GLOBAL void meas_int_fill_rel_iLevel ( UBYTE  *v_ilev,
+                                       UBYTE  *ilev,
+                                       UBYTE   idx,
+                                       USHORT  c_raw_data_lev )
+{
+  UBYTE val; /* holds interference level data */
+
+  if( grlc_data->meas.ilev.ilev[idx] NEQ CGRLC_ILEV_NONE )
+  {
+    if( c_raw_data_lev < grlc_data->meas.ilev.ilev[idx] * MEAS_ACRCY )
+    {
+      *ilev = I_LEVEL_MIN;
+    }
+    else
+    {
+      val = ( c_raw_data_lev - grlc_data->meas.ilev.ilev[idx] * MEAS_ACRCY ) / 
+            ( 2 * MEAS_ACRCY ) + 1;
+    
+      if( val > I_LEVEL_MAX ) *ilev = I_LEVEL_MAX;
+      else                    *ilev = val;
+    }
+
+    *v_ilev = TRUE;
+  }
+  else
+  {
+    *v_ilev = FALSE;
+  }
+} /* meas_int_fill_rel_iLevel() */