view src/gpf3/ccd/gsm5_v.c @ 686:59f07d67eb45

luna target split into luna1 and luna2 luna1 is FC Luna based on iWOW DSK v4.0 or v5.0 motherboard luna2 is FC Luna based on FC Caramel2 MB
author Mychaela Falconia <falcon@freecalypso.org>
date Mon, 12 Oct 2020 18:51:24 +0000
parents c41a534f33c6
children
line wrap: on
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/* 
+----------------------------------------------------------------------------- 
|  Project :  
|  Modul   : gsm5_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 GSM5_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_INT_RAM
/*
+--------------------------------------------------------------------+
| PROJECT : CCD (6144)                 MODULE  : CDC_GSM             |
| STATE   : code                       ROUTINE : cdc_gsm5v_decode    |
+--------------------------------------------------------------------+

  PURPOSE : Decoding of the GSM Type 5V element. This element
            consists of the not decoded bits of the bitstream.
            In the target C-structure this element is a bitbuffer
            (T_xxx_BUF) in wich the bitstream content are written.

*/

SHORT cdc_gsm5v_decode (const ULONG c_ref, const ULONG e_ref, T_CCD_Globs *globs)
{
#ifdef DEBUG_CCD
  #ifndef CCD_SYMBOLS
  TRACE_CCD (globs, "cdc_gsm5v_decode()");
	#else
	TRACE_CCD (globs, "cdc_gsm5v_decode() %s", ccddata_get_alias((USHORT) e_ref, 1));
	#endif
#endif

  if (globs->bitpos >= globs->buflen)
  {
    return 1;
  }
  else
  {
    ULONG  cix_ref;
    
    cix_ref = melem[e_ref].calcIdxRef;

    /*
     * if this element is conditional, check the condition
     */
    if (calcidx[cix_ref].numCondCalcs NEQ 0
        AND ! ccd_conditionOK (e_ref, globs))
    {
      return 1;
    }
    else
    {
      ULONG  bits_to_read;
      ULONG  num_prolog_steps, prolog_step_ref;
      
      num_prolog_steps = calcidx[cix_ref].numPrologSteps;
      prolog_step_ref  = calcidx[cix_ref].prologStepRef;

      /* If there is a prologue given for this element, process it. */
      if (num_prolog_steps)
      {
        ccd_performOperations (num_prolog_steps, prolog_step_ref, globs);
      }
      
      /*
       * Setup the offset into the C-structure for this element
       */
      globs->pstructOffs = melem[e_ref].structOffs;

      if (melem[e_ref].optional)
      {  
        /*
         * for optional elements set the valid-flag in the C-struct.
         */
        globs->pstruct[globs->pstructOffs++] = TRUE;
      }

      if (globs->maxBitpos < globs->buflen - 16*globs->numEOCPending)
      {
        ccd_recordFault (globs, ERR_LEN_MISMATCH, CONTINUE, (USHORT) e_ref, 
                         globs->pstruct + globs->pstructOffs);
      }

      bits_to_read = (ULONG)(globs->buflen - globs->bitpos - 16*globs->numEOCPending);  
      bf_readBitChunk (bits_to_read, globs);
    }
  }

  return 1;
}
#endif /* !RUN_INT_RAM */

#ifndef RUN_INT_RAM
/*
+--------------------------------------------------------------------+
| PROJECT : CCD (6144)                 MODULE  : CDC_GSM             |
| STATE   : code                       ROUTINE : cdc_gsm5v_encode    |
+--------------------------------------------------------------------+

  PURPOSE : Encoding of the GSM Type 5V element. This element
            consists of the not decoded bits of the bitstream.
            In the target C-structure this element is a bitbuffer
            (T_xxx_BUF) from wich the bitstream content is read.

*/

SHORT cdc_gsm5v_encode (const ULONG c_ref, const ULONG e_ref, T_CCD_Globs *globs)
{
  ULONG  cix_ref, num_prolog_steps, prolog_step_ref;
  
#ifdef DEBUG_CCD
  #ifndef CCD_SYMBOLS
  TRACE_CCD (globs, "cdc_gsm5v_encode()");
	#else
	TRACE_CCD (globs, "cdc_gsm5v_encode() %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 is conditional, check the condition
   */
  if (calcidx[cix_ref].numCondCalcs NEQ 0
  AND ! ccd_conditionOK (e_ref, globs))
    return 1;

  /*
   * 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);
  }
  
  /*
   * Setup the offset into the C-structure for this element
   */
  globs->pstructOffs = melem[e_ref].structOffs;

  if (melem[e_ref].optional)
  {  
    /*
     * for optional elements check the valid-flag in the C-struct.
     * Spare elements does not have a corresponding valid flag.
     */
    if (globs->pstruct[globs->pstructOffs++] == FALSE)
    {
      return 1;
    }
#ifdef DEBUG_CCD
    else if (globs->pstruct [melem[e_ref].structOffs] != TRUE)
    {
      TRACE_CCD (globs, "Ambiguous value for valid flag!\n...assumed 1 for ccdID=%d",
                 e_ref);
    }
#endif
  }
 
  bf_writeBitChunk (mvar[melem[e_ref].elemRef].bSize, globs);

  return 1;
}
#endif /* !RUN_INT_RAM */