--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/g23m-fad/ra/ra_shm.c	Sun Jul 15 04:40:46 2018 +0000
@@ -0,0 +1,159 @@
+/* 
++----------------------------------------------------------------------------- 
+|  Project :  GSM-F&D (8411)
+|  Modul   :  RA_SHM
++----------------------------------------------------------------------------- 
+|  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 Modul defines the functions for accessing the
+|             shared memory segment between MCU and DSP
++----------------------------------------------------------------------------- 
+*/ 
+
+#ifndef RA_SHM_C
+#define RA_SHM_C
+#endif
+
+#define ENTITY_RA
+
+/*==== INCLUDES ===================================================*/
+
+#include <string.h>
+#include "typedefs.h"
+#include "pconst.cdg"
+#include "vsi.h"
+#include "custom.h"
+#include "gsm.h"
+#include "cnf_ra.h"
+#include "prim.h"
+#include "pei.h"
+#include "tok.h"
+#include "ccdapi.h"
+#include "ra.h"
+
+/*==== CONST ======================================================*/
+/*==== TYPES ======================================================*/
+/*==== VARIABLES ==================================================*/
+/*==== FUNCTIONS ==================================================*/
+
+/*
++--------------------------------------------------------------------+
+| PROJECT : GSM-F&D (8411)        MODULE  : RA_SHM                   |
+| STATE   : code                  ROUTINE : shm_set_dsp_buffer       |
++--------------------------------------------------------------------+
+
+  PURPOSE :
+*/
+
+GLOBAL USHORT shm_set_dsp_buffer(T_FRAME_DESC *data, register USHORT *buffer, USHORT offs, USHORT free)
+{
+  register UBYTE  *b;
+  USHORT len, segment;
+
+  buffer = (USHORT*) ( ( (UBYTE*) buffer ) + offs );
+  /*
+   * write the both segments specified by the frame descriptor data to the DSP mem.
+   */
+  for (segment = 0; segment < 2; segment++)
+  {
+    /*
+     * limitate the length fields;
+     */
+    len = free;
+
+    if (len > data->Len[segment])
+      len = data->Len[segment];
+
+    if (len)
+    {
+      data->Len[segment] -= len;
+      b = data->Adr[segment];
+      {
+        memcpy( (UBYTE*) buffer, (UBYTE*) b, (USHORT) len );
+        buffer = (USHORT*) ( ( (UBYTE*) buffer ) + len );
+        free -= len;
+        offs += len;
+      }
+    }
+  }
+  return offs;
+}
+
+GLOBAL U8 shm_set_dsp_buffer_new(T_FD *pFD, USHORT *buffer, U8 offs, U8 free)
+{
+  U8 len;
+
+  buffer = (USHORT*)(((UBYTE*)buffer) + offs);
+  /*
+   * limitate the length fields;
+   */
+  len = MINIMUM(free, pFD->len);
+  if (len)
+  {
+    memcpy((UBYTE*)buffer, (UBYTE*)pFD->buf, (USHORT)len);
+    buffer = (USHORT*)(((UBYTE*)buffer) + len);
+  }
+  return len;
+}
+
+/*
++--------------------------------------------------------------------+
+| PROJECT : GSM-F&D (8411)        MODULE  : RA_SHM                   |
+| STATE   : code                  ROUTINE : shm_get_dsp_buffer       |
++--------------------------------------------------------------------+
+
+  PURPOSE :
+
+*/
+GLOBAL USHORT shm_get_dsp_buffer(T_FRAME_DESC *data, register USHORT *buffer, USHORT bytes_to_read)
+{
+  register UBYTE  *b;
+  USHORT  offs = 0;
+  USHORT  len, segment;
+  /*
+   * read the both segments specified by the frame descriptor data from the DSP mem
+   */
+  for (segment = 0; segment < 2; segment++)
+  {
+    len = MINIMUM(data->Len[segment], bytes_to_read);
+    if (len)
+    {
+      data->Len[segment] -= len;
+      b = data->Adr[segment];
+#ifdef TI_PS_16BIT_CPY
+      api_memcpy((UBYTE*)b, (UBYTE*)buffer, (USHORT)len );
+#else
+      memcpy((UBYTE*)b, (UBYTE*)buffer, (USHORT)len );
+#endif
+      buffer = (USHORT*)(((UBYTE*)buffer) + len);
+      bytes_to_read -= len;
+      offs += len;
+    }
+  }
+  return offs;
+}
+
+GLOBAL U8 shm_get_dsp_buffer_new(USHORT *buffer, U8 bytes_to_read, T_FD *pFD)
+{
+  U8 len = MINIMUM(pFD->len, bytes_to_read);
+  if (len)
+  {
+    pFD->len = len;
+#ifdef TI_PS_16BIT_CPY
+    api_memcpy(pFD->buf, (UBYTE*)buffer, len);
+#else
+    memcpy(pFD->buf, (UBYTE*)buffer, len);
+#endif
+  }
+  return len;
+}
+