--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/cs/drivers/drv_app/ffs/board/ffspcm.c	Sun Jul 15 04:39:26 2018 +0000
@@ -0,0 +1,160 @@
+/*
+ * Flash File System (ffs)
+ *
+ * WCP PCM Compatibility Support
+ */
+
+#include <string.h>
+#include "main/sys_types.h"
+#include "memif/mem.h"
+#include "ffs/ffs.h" 
+#include "ffs/board/ffspcm.h"
+#include "nucleus.h"
+#include "csmi/csmi.h" 
+#include "csmi/csmi_gsmctrl.h" 
+#include "ffs/pcm.h" 
+
+
+// Factory FFS area description
+#pragma DATA_SECTION(FlashImage, ".ffs_img")
+const unsigned char FlashImage[0x4000];
+
+
+/*
+ *
+ * ffs_InitRFCap
+ * 
+ * Purpose  : Set rfcap for tri-band config
+ *
+ * Arguments: In : none
+ *                 
+ *            Out: none
+ *
+ * Returns  : none
+ *
+ */
+
+#define SIZE_EF_RFCAP	16
+
+static const UBYTE rfcap_TriBand[SIZE_EF_RFCAP] =   {0x00, 0x0F, 0x41, 0x10, 0x00, 0x00, 0x00, 0x00, \
+                                                     0x40, 0x00, 0x00, 0xA5, 0x05, 0x00, 0xC0, 0x00};
+
+static const UBYTE rfcap_DualExt[SIZE_EF_RFCAP] =   {0x00, 0x0B, 0x41, 0x00, 0x00, 0x00, 0x00, 0x00, \
+                                                     0x40, 0x00, 0x00, 0xA5, 0x05, 0x00, 0xC0, 0x00};
+                                                     
+effs_t ffs_InitRFCap ()
+{
+    ffs_mkdir_nb("/gsm" ,0);
+    ffs_mkdir_nb("/gsm/com" ,0);
+
+    ffs_fwrite_nb("/gsm/com/rfcap", (void*)rfcap_TriBand, SIZE_EF_RFCAP, 0);
+}
+
+/*
+ *
+ * ffs_SetBand
+ * 
+ * Purpose  : Set std config according to the selected Band
+ *
+ * Arguments: In : Band number
+ *                 
+ *            Out: none
+ *
+ * Returns  : none
+ *
+ */
+
+effs_t ffs_SetBand (unsigned char* band)
+{
+    // Check validity of std band (1, 3 and 6 are supported)
+    switch(*band)
+    {
+        case 1:
+        case 3:
+        case 6:
+          // fall through
+          break;
+
+        default:
+          return EFFS_BADNAME;
+    }
+
+    // Write STD file and set global variable
+    ffs_fwrite_nb("/pcm/STD", band, 1, 0);
+}
+
+/*
+ *
+ * ffs_GetBand
+ * 
+ * Purpose  : Get STD config as recorded in FFS
+ *
+ * Arguments: In : none
+ *                 
+ *            Out: none
+ *
+ * Returns  : STD
+ *
+ */
+
+unsigned char ffs_GetBand ()
+{
+    UBYTE   ubStd = 0;
+    effs_t  result;
+
+    // get FFS value
+    result = ffs_fread("/pcm/STD", &ubStd, 1);
+
+    // default if an error occured : 900-1800
+    if (result < EFFS_OK)
+    {
+        ubStd = 6;
+    }
+
+    return ubStd;
+}
+
+/*
+ * ffs_restore
+ *
+ * Restores flash file system from MPU Persistent Storage
+ * Restore Factory FFS in cae of file corruption
+ *
+ * Procedure described in PE023 document
+ *
+ */
+
+void ffs_restore(void)
+{
+    effs_t res;
+
+    // FFS restore procedure started
+    // send a message through CSMI
+    if( GC_RestoreFFSReq(FFS_BASE_ADDRESS, IMAGE_SIZE) == CSMI_ERROR )
+    {
+      // In case of MPU File corruption, 
+      // restore working FFS from factory FFS
+      memcpy((char *) FFS_BASE_ADDRESS, FlashImage, IMAGE_SIZE);
+
+      // backup FFS on MPU side 
+      // if we are running with the OS
+      if(GC_RunningWithOs())
+        ffs_backup();
+    }
+}
+
+/*
+ * ffs_backup
+ *
+ * Backup flash file system
+ *
+ * Procedure described in PE023 document
+ *
+ */
+
+void ffs_backup(void)
+{
+    // FFS backup procedure started
+    // send a message through CSMI
+    GC_BackupFFSReq(FFS_BASE_ADDRESS, IMAGE_SIZE);
+}