diff src/gpf/ccd/gsm5_v.c @ 0:4e78acac3d88

src/{condat,cs,gpf,nucleus}: import from Selenite
author Mychaela Falconia <falcon@freecalypso.org>
date Fri, 16 Oct 2020 06:23:26 +0000
parents
children
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/gpf/ccd/gsm5_v.c	Fri Oct 16 06:23:26 2020 +0000
@@ -0,0 +1,210 @@
+/* 
++----------------------------------------------------------------------------- 
+|  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 */