From e7a17d7d24b477b843f5a53bdf55e3a6be2ee65f Mon Sep 17 00:00:00 2001
From: Dobrica Pavlinusic <dpavlin@rot13.org>
Date: Wed, 28 Jul 2010 15:59:19 +0200
Subject: [PATCH] write_afi

---
 lib/RFID/Serial/3M810.pm | 33 ++++++++++++++++++++++++++++++++-
 t/10-3M-810.t            | 18 ++++++++++++++++--
 2 files changed, 48 insertions(+), 3 deletions(-)

diff --git a/lib/RFID/Serial/3M810.pm b/lib/RFID/Serial/3M810.pm
index 8802711..e209d48 100644
--- a/lib/RFID/Serial/3M810.pm
+++ b/lib/RFID/Serial/3M810.pm
@@ -223,7 +223,38 @@ sub read_afi {
 			warn "IGNORED ",as_hex($data);
 		}
 	});
-	return as_hex $afi;
+	warn "## read_afi ",dump($tag, $afi);
+	return $afi;
+}
+
+sub write_afi {
+	my $tag = shift;
+	$tag = shift if ref $tag;
+	my $afi = shift || die "no afi?";
+
+	$afi = as_hex $afi;
+
+	cmd(
+		"09 $tag $afi", "write_afi $tag $afi", sub {
+		my $data = shift;
+
+		if ( my $rest = _matched $data => '09 00' ) {
+
+			my $tag = substr($rest,0,8);
+			   $afi = substr($rest,8,1);
+
+			warn "# SECURITY ", hex_tag($tag), " AFI: ", as_hex($afi);
+
+		} elsif ( my $rest = _matched $data => '0A 06' ) {
+			warn "ERROR writing AFI to $tag ", as_hex($data);
+			undef $afi;
+		} else {
+			warn "IGNORED ",as_hex($data);
+			undef $afi;
+		}
+	});
+	warn "## write_afi ", dump( $tag, $afi );
+	return $afi;
 }
 
 1
diff --git a/t/10-3M-810.t b/t/10-3M-810.t
index 972b41a..d52b355 100755
--- a/t/10-3M-810.t
+++ b/t/10-3M-810.t
@@ -14,9 +14,23 @@ ok( my $o = RFID::Serial::3M810->new( device => '/dev/ttyUSB0' ), 'new' );
 ok( my @tags = $o->inventory, 'inventory' );
 diag dump @tags;
 
-ok( my $blocks = $o->read_blocks( $_ ), "read_blocks $_" ) foreach @tags;
+my $old_afi;
 
-ok( my $afi = $o->read_afi( $_ ), "read_afi $_" ) foreach @tags;
+foreach my $tag ( @tags ) {
+
+	ok( my $blocks = $o->read_blocks( $tag ), "read_blocks $tag" );
+
+	ok( my $afi = $o->read_afi( $tag ), "read_afi $tag" );
+
+	my $new_afi = "\x42";
+
+	ok( $o->write_afi( $tag, $new_afi ), sprintf( "write_afi %s %x", $tag, $new_afi ) );
+
+	cmp_ok( $o->read_afi( $tag ), 'eq', $new_afi, 'AFI check' );
+
+	ok( $o->write_afi( $tag, $afi ), sprintf( "write_afi %s %x", $tag, $afi ) );
+
+}
 
 ok( my $visible = $o->scan, 'scan' );
 diag dump $visible;
-- 
2.20.1