view src/gpf3/ccd/gsm1_v.c @ 685:3fb7384e820d

tpudrv12.h: FCDEV3B goes back to being itself A while back we had the idea of a FreeCalypso modem family whereby our current fcdev3b target would some day morph into fcmodem, with multiple FC modem family products, potentially either triband or quadband, being firmware-compatible with each other and with our original FCDEV3B. But in light of the discovery of Tango modules that earlier idea is now being withdrawn: instead the already existing Tango hw is being adopted into our FreeCalypso family. Tango cannot be firmware-compatible with triband OM/FCDEV3B targets because the original quadband RFFE on Tango modules is wired in TI's original Leonardo arrangement. Because this Leonardo/Tango way is now becoming the official FreeCalypso way of driving quadband RFFEs thanks to the adoption of Tango into our FC family, our earlier idea of extending FIC's triband RFFE control signals with TSPACT5 no longer makes much sense - we will probably never produce any new hardware with that once-proposed arrangement. Therefore, that triband-or-quadband FCFAM provision is being removed from the code base, and FCDEV3B goes back to being treated the same way as CONFIG_TARGET_GTAMODEM for RFFE control purposes.
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 24 Sep 2020 21:03:08 +0000
parents c41a534f33c6
children
line wrap: on
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/* 
+----------------------------------------------------------------------------- 
|  Project :  
|  Modul   : gsm1_v.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 :  Definition of encoding and decoding functions for GSM1_V elements 
+----------------------------------------------------------------------------- 
*/ 


/*
 * standard definitions like GLOBAL, UCHAR, ERROR etc.
 */
#include "typedefs.h"
#include "header.h"

/*
 * Prototypes of ccd (USE_DRIVER EQ undef) for prototypes only
 * look at ccdapi.h
 */
#undef USE_DRIVER
#include "ccdapi.h"

/*
 * Types and functions for bit access and manipulation
 */
#include "ccd_globs.h"
#include "bitfun.h"

/*
 * Prototypes of ccd internal functions
 */
#include "ccd.h"


/*
 * Declaration of coder/decoder tables
 */
#include "ccdtable.h"
#include "ccddata.h"

#ifndef RUN_FLASH
/*
+--------------------------------------------------------------------+
| PROJECT : CCD (6144)                 MODULE  : CDC_GSM             |
| STATE   : code                       ROUTINE : cdc_gsm1v_decode    |
+--------------------------------------------------------------------+

  PURPOSE : Decoding of the GSM Type 1V element. This element
            consists of a V component with max. 4 Bit length.
*/

SHORT cdc_gsm1v_decode (const ULONG c_ref, const ULONG e_ref, T_CCD_Globs *globs)
{
  SHORT ret; 
  ULONG  cix_ref, num_prolog_steps, prolog_step_ref;

#ifdef DEBUG_CCD
  #ifndef CCD_SYMBOLS
  TRACE_CCD (globs, "cdc_gsm1v_decode()");
  #else
  TRACE_CCD (globs, "cdc_gsm1v_decode() %s", ccddata_get_alias((USHORT) e_ref, 1));
  #endif
#endif

  cix_ref = melem[e_ref].calcIdxRef;
  num_prolog_steps = calcidx[cix_ref].numPrologSteps;
  prolog_step_ref  = calcidx[cix_ref].prologStepRef;

  /*
   * if this element have a defined Prolog
   * we have to process it before decoding the bitstream
   */
  if (num_prolog_steps)
  {
    ccd_performOperations (num_prolog_steps, prolog_step_ref, globs);
  }
  
  if (!globs->Swap1V_inProgress)
  {
    /*
     * check if the next element is a GSM1V too
     */
    if ((ULONG)(mcomp[c_ref].componentRef
        +mcomp[c_ref].numOfComponents) > e_ref
      AND (melem[e_ref].codingType EQ melem[e_ref+1].codingType
           OR melem[e_ref+1].elemType EQ 'S'))
    { 
	    if (melem[e_ref+1].elemType EQ 'S') 
	    {
		    /*
		     * if the next element is a spare then skip the next 4 bits
		     * do not decode the spare bits.
		     */
	      bf_setBitpos ((globs->bitpos+4), globs);

          ret = cdc_std_decode (c_ref, e_ref, globs);

          if (ret EQ 1)
            ret++;

          return ret;
	    }
	    else
	    {
		    /*
		     * another 1V-element follow. We have to swap the nibbles.
		     */
		    globs->Swap1V_inProgress = TRUE;
		    /*
		     * store the akt position
		     */
		    globs->akt1VPos  = (USHORT)(globs->bitpos+4);
		    globs->next1VPos = globs->bitpos;

		    bf_setBitpos (globs->akt1VPos, globs);
        ret = cdc_std_decode (c_ref, e_ref, globs);
        /*
         * increment the globs->maxBitpos by 1 so the bf_endOfBitstream
         * will return FALSE
         */
        globs->maxBitpos++;

        return ret;
      }
    }
    ret = cdc_std_decode (c_ref, e_ref, globs);

  }
  else
  {
    globs->akt1VPos = globs->next1VPos;
    globs->next1VPos = globs->bitpos;

    bf_setBitpos (globs->akt1VPos, globs);
    
    /*
     * decrement the globs->maxBitpos by 1 so the bf_endOfBitstream
     * will return TRUE if the bitstream ended
     */
    globs->maxBitpos--;

    ret = cdc_std_decode (c_ref, e_ref, globs);

    bf_setBitpos (globs->next1VPos, globs);

    globs->Swap1V_inProgress = FALSE;

  }
  return ret;
}
#endif /* !RUN_FLASH */
 
#ifndef RUN_FLASH
/*
+--------------------------------------------------------------------+
| PROJECT : CCD (6144)                 MODULE  : CDC_GSM             |
| STATE   : code                       ROUTINE : cdc_gsm1v_encode    |
+--------------------------------------------------------------------+

  PURPOSE : encoding of the GSM Type 1V element. This element
            consists of a V component with max. 4 Bit length.
*/

SHORT cdc_gsm1v_encode (const ULONG c_ref, const ULONG e_ref, T_CCD_Globs *globs)
{
#ifdef DEBUG_CCD
  #ifndef CCD_SYMBOLS
  TRACE_CCD (globs, "cdc_gsm1v_encode()");
  #else
  TRACE_CCD (globs, "cdc_gsm1v_encode() %s", ccddata_get_alias((USHORT) e_ref, 1));
  #endif
#endif

  if (!globs->Swap1V_inProgress)
  {
    /*
     * check if the next element is a GSM1V too
     */
    if ((ULONG)(mcomp[c_ref].componentRef
        +mcomp[c_ref].numOfComponents) > e_ref
      AND (melem[e_ref].codingType EQ melem[e_ref+1].codingType
           OR melem[e_ref+1].elemType EQ 'S'))
    { 
	    if (melem[e_ref+1].elemType EQ 'S') 
	    {
        SHORT ret; 
		    /*
		     * if the next element is a spare then skip the next 4 bits
		     * do not code the spare bits because the bitstream is cleared.
		     */
	      bf_setBitpos (globs->bitpos+4, globs);

        ret = cdc_std_encode (c_ref, e_ref, globs);

        if (ret EQ 1)
          ret++;

        return ret;
	    }
	    else
      {
        /*
         * another 1V-element follow. We have to swap the nibbles.
         */
        globs->Swap1V_inProgress = TRUE;
        /*
         * store the akt position
         */
        globs->akt1VPos  = (USHORT)(globs->bitpos+4);
        globs->next1VPos = globs->bitpos;

        bf_setBitpos (globs->akt1VPos, globs);
      }
    }
    return cdc_std_encode (c_ref, e_ref, globs);
  }
  else
  {
    SHORT ret;

    globs->akt1VPos = globs->next1VPos;
    globs->next1VPos = globs->bitpos;

    bf_setBitpos (globs->akt1VPos, globs);
    
    ret = cdc_std_encode (c_ref, e_ref, globs);

    bf_setBitpos (globs->next1VPos, globs);

    globs->Swap1V_inProgress = FALSE;

    return ret;
  }
}
#endif /* !RUN_FLASH */