view src/g23m-gprs/grlc/grlc_tpcg.c @ 662:8cd8fd15a095

SIM speed enhancement re-enabled and made configurable TI's original code supported SIM speed enhancement, but Openmoko had it disabled, and OM's disabling of speed enhancement somehow caused certain SIM cards to start working which didn't work before (OM's bug #666). Because our FC community is much smaller in year 2020 than OM's community was in their day, we are not able to find one of those #666-affected SIMs, thus the real issue they had encountered remains elusive. Thus our solution is to re-enable SIM speed enhancement and simply wait for if and when someone runs into a #666-affected SIM once again. We provide a SIM_allow_speed_enhancement global variable that allows SIM speed enhancement to be enabled or disabled per session, and an /etc/SIM_spenh file in FFS that allows it to enabled or disabled on a non-volatile basis. SIM speed enhancement is now enabled by default.
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 24 May 2020 05:02:28 +0000
parents 219afcfc6250
children
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/* 
+----------------------------------------------------------------------------- 
|  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
|             TPC of entity GRLC.
+----------------------------------------------------------------------------- 
*/ 

/*
 * !!!ATTENTION!!!ATTENTION!!!ATTENTION!!!ATTENTION!!!ATTENTION!!!ATTENTION!!!
 * 
 * This file was previously named grlc_tpcf.c.
 *
 * A renaming was necessary due to an ClearCase evil twin problem across the
 * TCS2/TCS3/TCS4 and the TCS5 programs.
 *
 * The same applied for the file grlc_tpcf.h.
 * 
 * !!!ATTENTION!!!ATTENTION!!!ATTENTION!!!ATTENTION!!!ATTENTION!!!ATTENTION!!!
 */

#ifndef GRLC_TPCG_C
#define GRLC_TPCG_C
#endif /* #ifndef GRLC_TPCG_C */

#define ENTITY_GRLC

/*==== INCLUDES =============================================================*/

#include <string.h>
#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"

/*==== CONST ================================================================*/

#define MIN_PCL_GSM900  31 /* minimum power control level GSM 900  */
#define MAX_PCL_GSM900  0  /* maximum power control level GSM 900  */
#define MIN_PCL_DCS1800 28 /* minimum power control level DCS 1800 */
#define MAX_PCL_DCS1800 29 /* maximum power control level DCS 1800 */
#define MIN_PCL_PCS1900 21 /* minimum power control level PCS 1900 */
#define MAX_PCL_PCS1900 22 /* maximum power control level PCS 1900 */

#define GAMMA_0_GSM900  39
#define GAMMA_0_DCS1800 36
#define GAMMA_0_PCS1900 36

#define MAX_PCL 32

/*==== DIAGNOSTICS ==========================================================*/

/*==== LOCAL VARS ===========================================================*/
/*
 * The following tables converts the air-interface coding of
 * the system information parameter MAX_TXPWR_CCCH to a value
 * in dBm depending on the frequency standard (GSM, DCS or PCS).
 */
const UBYTE pcl_to_dbm_gsm [MAX_PCL] =
{                                      39,   /*  0 -> 39 dBm */
                                       39,   /*  1 -> 39 dBm */
                                       39,   /*  2 -> 39 dBm */
                                       37,   /*  3 -> 37 dBm */
                                       35,   /*  4 -> 35 dBm */
                                       33,   /*  5 -> 33 dBm */
                                       31,   /*  6 -> 31 dBm */
                                       29,   /*  7 -> 29 dBm */
                                       27,   /*  8 -> 27 dBm */
                                       25,   /*  9 -> 25 dBm */
                                       23,   /* 10 -> 23 dBm */
                                       21,   /* 11 -> 21 dBm */
                                       19,   /* 12 -> 19 dBm */
                                       17,   /* 13 -> 17 dBm */
                                       15,   /* 14 -> 15 dBm */
                                       13,   /* 15 -> 13 dBm */
                                       11,   /* 16 -> 11 dBm */
                                        9,   /* 17 ->  9 dBm */
                                        7,   /* 18 ->  7 dBm */
                                        5,   /* 19 ->  5 dBm */
                                        5,   /* 20 ->  5 dBm */
                                        5,   /* 21 ->  5 dBm */
                                        5,   /* 22 ->  5 dBm */
                                        5,   /* 23 ->  5 dBm */
                                        5,   /* 24 ->  5 dBm */
                                        5,   /* 25 ->  5 dBm */
                                        5,   /* 26 ->  5 dBm */
                                        5,   /* 27 ->  5 dBm */
                                        5,   /* 28 ->  5 dBm */
                                        5,   /* 29 ->  5 dBm */
                                        5,   /* 30 ->  5 dBm */
                                        5    /* 31 ->  5 dBm */
};

const UBYTE pcl_to_dbm_dcs [MAX_PCL] =
{                                      30,   /*  0 -> 30 dBm */
                                       28,   /*  1 -> 28 dBm */
                                       26,   /*  2 -> 26 dBm */
                                       24,   /*  3 -> 24 dBm */
                                       22,   /*  4 -> 22 dBm */
                                       20,   /*  5 -> 20 dBm */
                                       18,   /*  6 -> 18 dBm */
                                       16,   /*  7 -> 16 dBm */
                                       14,   /*  8 -> 14 dBm */
                                       12,   /*  9 -> 12 dBm */
                                       10,   /* 10 -> 10 dBm */
                                        8,   /* 11 ->  8 dBm */
                                        6,   /* 12 ->  6 dBm */
                                        4,   /* 13 ->  4 dBm */
                                        2,   /* 14 ->  2 dBm */
                                        0,   /* 15 ->  0 dBm */
                                        0,   /* 16 ->  0 dBm */
                                        0,   /* 17 ->  0 dBm */
                                        0,   /* 18 ->  0 dBm */
                                        0,   /* 19 ->  0 dBm */
                                        0,   /* 20 ->  0 dBm */
                                        0,   /* 21 ->  0 dBm */
                                        0,   /* 22 ->  0 dBm */
                                        0,   /* 23 ->  0 dBm */
                                        0,   /* 24 ->  0 dBm */
                                        0,   /* 25 ->  0 dBm */
                                        0,   /* 26 ->  0 dBm */
                                        0,   /* 27 ->  0 dBm */
                                        0,   /* 28 ->  0 dBm */
                                       36,   /* 29 -> 36 dBm */
                                       34,   /* 30 -> 34 dBm */
                                       32    /* 31 -> 32 dBm */
};

const UBYTE pcl_to_dbm_pcs [MAX_PCL] =
{                                      30,   /*  0 -> 30 dBm */
                                       28,   /*  1 -> 28 dBm */
                                       26,   /*  2 -> 26 dBm */
                                       24,   /*  3 -> 24 dBm */
                                       22,   /*  4 -> 22 dBm */
                                       20,   /*  5 -> 20 dBm */
                                       18,   /*  6 -> 18 dBm */
                                       16,   /*  7 -> 16 dBm */
                                       14,   /*  8 -> 14 dBm */
                                       12,   /*  9 -> 12 dBm */
                                       10,   /* 10 -> 10 dBm */
                                        8,   /* 11 ->  8 dBm */
                                        6,   /* 12 ->  6 dBm */
                                        4,   /* 13 ->  4 dBm */
                                        2,   /* 14 ->  2 dBm */
                                        0,   /* 15 ->  0 dBm */
                                        0,   /* 16 ->  0 dBm */
                                        0,   /* 17 ->  0 dBm */
                                        0,   /* 18 ->  0 dBm */
                                        0,   /* 19 ->  0 dBm */
                                        0,   /* 20 ->  0 dBm */
                                        0,   /* 21 ->  0 dBm */
                                       33,   /* 22 -> 33 dBm */
                                       33,   /* 23 -> 33 dBm */
                                       33,   /* 24 -> 33 dBm */
                                       33,   /* 25 -> 33 dBm */
                                       33,   /* 26 -> 33 dBm */
                                       33,   /* 27 -> 33 dBm */
                                       33,   /* 28 -> 33 dBm */
                                       33,   /* 29 -> 33 dBm */
                                       33,   /* 30 -> 33 dBm */
                                       32    /* 31 -> 32 dBm */
};

/*==== PRIVATE FUNCTIONS ====================================================*/

/*==== PUBLIC FUNCTIONS =====================================================*/
/*
+------------------------------------------------------------------------------
| Function    : tpc_get_ms_pwr_cap
+------------------------------------------------------------------------------
| Description :
|
| Parameters  :
|
+------------------------------------------------------------------------------
*/
GLOBAL void tpc_get_ms_pwr_cap ( UBYTE         band_indicator,
                                 T_MS_PWR_CAP *ms_pwr_cap )
{ 
  TRACE_FUNCTION( "tpc_get_ms_pwr_cap" ); 

  switch( band_indicator )
  {
    default:
    case CGRLC_GSM_400:
    case CGRLC_GSM_850:
    case CGRLC_GSM_900:
      ms_pwr_cap->p_control = pcl_to_dbm_gsm;
      ms_pwr_cap->pwr_min   = pcl_to_dbm_gsm[MIN_PCL_GSM900];
      ms_pwr_cap->gamma_0   = GAMMA_0_GSM900;
      break;

    case CGRLC_DCS_1800:
      ms_pwr_cap->p_control = pcl_to_dbm_dcs;
      ms_pwr_cap->pwr_min   = pcl_to_dbm_dcs[MIN_PCL_DCS1800];
      ms_pwr_cap->gamma_0   = GAMMA_0_DCS1800;
      break;

    case CGRLC_PCS_1900:
      ms_pwr_cap->p_control = pcl_to_dbm_pcs;
      ms_pwr_cap->pwr_min   = pcl_to_dbm_pcs[MIN_PCL_PCS1900];
      ms_pwr_cap->gamma_0   = GAMMA_0_PCS1900;
      break;
  }

} /* tpc_get_ms_pwr_cap() */

/*
+------------------------------------------------------------------------------
| Function    : tpc_get_pcl
+------------------------------------------------------------------------------
| Description : This function is used to convert the nominal output power to 
|               the power control level
|
| Parameters  : p_ctrl - pointer to table of power control levels
|               nop    - nominal output power
|
+------------------------------------------------------------------------------
*/
GLOBAL UBYTE tpc_get_pcl ( UBYTE const *p_ctrl, SHORT nop )
{ 
  UBYTE pcl = 0; /* power control level */

  TRACE_FUNCTION( "tpc_get_pcl" ); 

  /* get power control level */
  while( nop < (SHORT)p_ctrl[pcl] - 1 OR nop >= (SHORT)p_ctrl[pcl] + 1 ) pcl++;

  return( pcl );

} /* tpc_get_pcl() */