[chirp_devel] [PATCH 2 of 4] [ft8x7] Detect us driver used to clone non us radio

[Marco Filippi IZ3GME]

# HG changeset patch
# User Marco Filippi <iz3gme.marco at gmail.com>
# Date 1389909601 -3600
# Node ID 5236e0423182974b1c7c8851105fa3f3fa1d173e
# Parent  fe6805f6f632016c4cf63fc3f6a75560533e5ae8
[ft8x7] Detect us driver used to clone non us radio
Implement feature #1375

diff -r fe6805f6f632 -r 5236e0423182 chirp/ft817.py
--- a/chirp/ft817.py	Thu Jan 16 22:46:33 2014 +0100
+++ b/chirp/ft817.py	Thu Jan 16 23:00:01 2014 +0100
@@ -294,7 +294,7 @@
             4. Press the [C] key ("RX" will appear on the LCD)."""))
         return rp
 
-    def _read(self, block, blocknum):
+    def _read(self, block, blocknum, lastblock):
         for _i in range(0, 60):
             data = self.pipe.read(block+2)
             if data:
@@ -309,7 +309,13 @@
                                     checksum.get_calculated(data), blocknum))
             data = data[1:block+1] # Chew away the block number and the checksum
         else:
-            raise Exception("Unable to read block %02X expected %i got %i" %
+            if lastblock and self._US_model:
+                raise Exception(_("Unable to read last block. "
+                            "This often happens when the selected model is US "
+                            "but the radio is a non-US one (or widebanded). "
+                            "Please choose the correct model and try again."))
+            else:
+                raise Exception("Unable to read block %02X expected %i got %i" %
                                 (blocknum, block+2, len(data)))
     
         if os.getenv("CHIRP_DEBUG"):
@@ -326,7 +332,8 @@
         blocks = 0
         status = chirp_common.Status()
         status.msg = _("Cloning from radio")
-        status.max = len(self._block_lengths) + 39
+        nblocks = len(self._block_lengths) + 39
+        status.max = nblocks
         for block in self._block_lengths:
             if blocks == 8:
                 # repeated read of 40 block same size (memory area)
@@ -334,7 +341,7 @@
             else:
                 repeat = 1
             for _i in range(0, repeat):	
-                data += self._read(block, blocks)
+                data += self._read(block, blocks, blocks == nblocks-1)
                 self.pipe.write(chr(CMD_ACK))
                 blocks += 1
                 status.cur = blocks