--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/g23m-aci/aci/plmn_decoder.c	Fri Oct 16 06:25:50 2020 +0000
@@ -0,0 +1,227 @@
+/* plmn_decoder.cpp : Defines the entry point for the console application. */
+
+#include <assert.h>
+#include <stdio.h>
+#include <stddef.h>
+#include <stdlib.h>
+#include <string.h>
+
+#ifdef TI_PS_OP_OPN_TAB_ROMBASED
+#ifndef CMH_PLMN_DECODER_C
+#define CMH_PLMN_DECODER_C
+#endif
+
+#include "aci_all.h"
+
+/*==== INCLUDES ===================================================*/
+
+#include "aci_cmh.h"
+#include "ati_cmd.h"
+#include "aci_cmd.h"
+#include "aci_mem.h"
+#include "pcm.h"
+
+#ifdef TI_PS_OP_OPN_TAB_ROMBASED
+  #include "rom_tables.h"
+#endif /* TI_PS_OP_OPN_TAB_ROMBASED */
+
+
+#ifdef FAX_AND_DATA
+#include "aci_fd.h"
+#endif    /* of #ifdef FAX_AND_DATA */
+
+#include "aci.h"
+#include "psa.h"
+#include "psa_mm.h"
+#include "psa_sim.h"
+#include "psa_util.h"
+#include "cmh.h"
+
+
+
+#define PLMN_LONGNAME_LOOKUP 0xff
+
+EXTERN void  cmhSIM_getMncMccFrmPLMNsel( const UBYTE* ntry, 
+                                                         SHORT* mcc, 
+                                                         SHORT* mnc );
+
+/* NHK:
+ * Once the tables plmn_compressed, plmn_dict_offset and plmn_dict go to ROM, their names below should match corresponding ROM addresses
+ * KSR: Moved to g23m\condat\com\src\drivers\rom_tables.c
+ */
+
+/*
++----------------------------------------------------------------------------+
+| PROJECT : GSM-PS (6147)       MODULE  : MM_MM                              |
+| STATE   : code                ROUTINE : cmhMM_CompLongLength               |
++----------------------------------------------------------------------------+
+
+  PURPOSE : This function gets the compressed length of the longName
+            from a compressed PLMN entry.
+  
+*/
+LOCAL USHORT cmhMM_CompLongLength (const UBYTE *plmn_comp_entry)
+{
+  UBYTE length_byte;
+
+  length_byte = *(plmn_comp_entry + 3);
+
+  return ((length_byte >> 3) & 0x1f) + 1;
+}
+
+/*
++----------------------------------------------------------------------------+
+| PROJECT : GSM-PS (6147)       MODULE  : MM_MM                              |
+| STATE   : code                ROUTINE : cmhMM_CompShrtLength               |
++----------------------------------------------------------------------------+
+
+  PURPOSE : This function gets the compressed length of the shrtName
+            from a compressed PLMN entry.
+  
+*/
+LOCAL USHORT cmhMM_CompShrtLength (const UBYTE *plmn_comp_entry)
+{
+  UBYTE length_byte;
+
+  length_byte = *(plmn_comp_entry + 3);
+
+  return ((length_byte     ) & 0x07) + 1;
+}
+
+
+/*
++----------------------------------------------------------------------------+
+| PROJECT : GSM-PS (6147)       MODULE  : MM_MM                              |
+| STATE   : code                ROUTINE : cmhMM_PlmnEntryLength              |
++----------------------------------------------------------------------------+
+
+  PURPOSE : This function gets the length of a compressed PLMN entry.
+  
+*/
+GLOBAL USHORT cmhMM_PlmnEntryLength (const UBYTE *plmn_comp_entry)
+{
+  return (4 + cmhMM_CompLongLength (plmn_comp_entry) 
+            + cmhMM_CompShrtLength (plmn_comp_entry));
+}
+
+
+/*
++----------------------------------------------------------------------------+
+| PROJECT : GSM-PS (6147)       MODULE  : MM_MM                              |
+| STATE   : code                ROUTINE : cmhMM_Decompress                   |
++----------------------------------------------------------------------------+
+
+  PURPOSE : This function decompresses a compressed string.
+            If the decompressed string is the long PLMN name the longName
+            parameter is NULL, when the decompressed string is the short
+            PLMN name the longName parameter is the previously decompressed
+            PLMN long name, as in some cases the short PLMN name consists of
+            parts of the long PLMN name lookups within the decompressed long
+            name will be done when advised to do so by the compressed byte 
+            string.
+            On success the function returns with zero, on detection of an
+            internal error a negative value is returned.
+ 
+*/
+LOCAL SHORT cmhMM_Decompress (char *decomp_string, 
+                              const char *longName,
+                              const UBYTE *comp_string,
+                              USHORT comp_length)
+{
+  USHORT offset;
+  USHORT length;
+
+  while (comp_length > 0)
+  {
+    if (*comp_string < 128)
+    {
+      /* GSM default alphabet. Take character 1:1 */
+      *decomp_string = *comp_string;
+      decomp_string++;
+    }
+    else if (*comp_string EQ PLMN_LONGNAME_LOOKUP)
+    {
+      if ((longName EQ NULL) OR (comp_length <= 1))
+      {
+        TRACE_ERROR ("Cannot process longName lookup");
+        return -1;
+      }
+
+      /* Decoding short name. Lookup into long name */
+
+      /* Skip PLMN_LONGNAME_LOOKUP */
+      comp_string++;
+      comp_length--;
+
+      /* Get offset and length of substring in long name */
+      offset = (*comp_string >> 3) & 0x1f;
+      length = (*comp_string & 0x07) + 1;
+      memcpy (decomp_string, longName + offset, length);
+      decomp_string += length;
+    }
+    else
+    {
+      /* Dictionary lookup */
+
+      /* Get offset of dictionary entry */
+      offset = *(ptr_plmn_dict_offset + (*comp_string - 128)); 
+
+      /* Get length of dictionary entry */
+      length = *(ptr_plmn_dict_offset + (*comp_string - 128 + 1)) - offset;
+      memcpy (decomp_string, ptr_plmn_dict + offset, length);
+      decomp_string += length;
+    }
+    comp_string++;
+    comp_length--;
+  }
+  decomp_string = '\0';
+  return 0;
+}
+
+
+/*
++----------------------------------------------------------------------------+
+| PROJECT : GSM-PS (6147)       MODULE  : MM_MM                              |
+| STATE   : code                ROUTINE : cmhMM_decodePlmn                   |
++----------------------------------------------------------------------------+
+
+  PURPOSE : This function decodes a compressed PLMN entry into a decompressed
+            T_OPER_ENTRY structure. On success this function returns with 
+            zero, if during decompression an internal error is detected the
+            function returns with a negative value.
+ 
+*/
+GLOBAL SHORT cmhMM_decodePlmn (T_OPER_ENTRY *oper, const UBYTE *plmn_comp_entry)
+{
+  SHORT mcc;              /* Mobile Country Code */
+  SHORT mnc;              /* Mobile Network Code */
+  USHORT comp_Length;     /* Compressed string length */
+  SHORT result;           /* Decompression result */
+  const UBYTE *comp_ptr;  /* Compressed PLMNs pointer */
+
+  memset (oper, 0, sizeof (T_OPER_ENTRY));
+
+  cmhSIM_getMncMccFrmPLMNsel (plmn_comp_entry, &mcc, &mnc);
+  oper->mcc = mcc;
+  oper->mnc = mnc;
+
+  if (mcc EQ -1)
+    return -1; /* Got end of list, not processing further */
+
+  /* Decompress longName */
+  comp_ptr = plmn_comp_entry + 4;
+  comp_Length = cmhMM_CompLongLength (plmn_comp_entry);
+  result = cmhMM_Decompress (oper->longName, NULL,
+                             comp_ptr, comp_Length);
+  if (result < 0)
+    return result;
+
+  /* Decompress shrtName */
+  comp_ptr += comp_Length;
+  comp_Length = cmhMM_CompShrtLength (plmn_comp_entry);
+  result = cmhMM_Decompress (oper->shrtName, oper->longName, 
+                             comp_ptr, comp_Length);
+  return result;
+}
+
+#endif