# HG changeset patch
# User Mychaela Falconia <falcon@freecalypso.org>
# Date 1500877090 0
# Node ID a33da2d26a312462e8708aac07568a18a404a607
# Parent  3b8d291ed45af1a04beb3b5666543b414193354e
aci3: FreeCalypso +CGSN logic ported over

diff -r 3b8d291ed45a -r a33da2d26a31 src/g23m-aci/aci/ati_bas.c
--- a/src/g23m-aci/aci/ati_bas.c	Mon Jul 24 04:41:53 2017 +0000
+++ b/src/g23m-aci/aci/ati_bas.c	Mon Jul 24 06:18:10 2017 +0000
@@ -73,6 +73,10 @@
 
 #endif /*FF_ATI_BAT*/
 
+#include "cl_imei.h"
+#include "ksd.h"
+#include "cmh_ss.h"
+
 #include "fc-target.cfg"
 
 LOCAL T_ATI_RSLT aciPrcsPlusCG (UBYTE srcId, CHAR* cl, CHAR* ef);
@@ -2136,9 +2140,42 @@
 */
 GLOBAL T_ATI_RSLT atPlusCGSN ( char *cl, UBYTE srcId )
 {
+  int i;
+  UBYTE      IMEIBuf[CL_IMEI_SIZE];      /* IMEI buffer */
+  T_ACI_IMEI imei;
+
   TRACE_FUNCTION("atPlusCGSN()");
 
-  return aciPrcsPlusCG (srcId, cl, EF_CGSN_ID);
+  /*
+   * New FreeCalypso logic:
+   *
+   * look for /pcm/CGSN first, using direct FFS API rather than PCM;
+   * if /pcm/CGSN is present, return the string stored in there;
+   * if no /pcm/CGSN, return 15-digit IMEI with computed check digit.
+   */
+
+  i = ffs_file_read("/pcm/CGSN", (UBYTE *)g_sa, SIZE_EF_CGSN);
+  if (i > 0)
+    g_sa[i] = '\0';
+  else {
+    cl_get_imeisv(CL_IMEI_SIZE, IMEIBuf, CL_IMEI_GET_STORED_IMEI);
+    imei.tac1 = IMEIBuf[0];
+    imei.tac2 = IMEIBuf[1];
+    imei.tac3 = IMEIBuf[2];
+    imei.fac  = IMEIBuf[3];
+    imei.snr1 = IMEIBuf[4];
+    imei.snr2 = IMEIBuf[5];
+    imei.snr3 = IMEIBuf[6];
+    imei.svn  = IMEIBuf[7];
+    imei.cd   = cmhSS_getCdFromImei ( &imei );
+    sprintf(g_sa, "%02x%02x%02x%02x%02x%02x%02x%d",
+            imei.tac1, imei.tac2, imei.tac3, imei.fac,
+            imei.snr1, imei.snr2, imei.snr3, imei.cd);
+  }
+
+  io_sendMessage (srcId, g_sa, ATI_NORMAL_OUTPUT);
+
+  return ATI_CMPL;
 }
 
 /*