Input: ALPS - add protocol version field in alps_model_info

In preparation for adding support for more ALPS protocol versions,
add a field for the protocol version to the model info instead of
using a field in the flags. OLDPROTO and !OLDPROTO are now called
version 1 and version 2, repsectively.

Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
Acked-by: Chase Douglas <chase.douglas@canonical.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/input/mouse/alps.h b/drivers/input/mouse/alps.h
index 904ed8b3c8be..4ce9bba6a3cd 100644
--- a/drivers/input/mouse/alps.h
+++ b/drivers/input/mouse/alps.h
@@ -12,8 +12,12 @@
 #ifndef _ALPS_H
 #define _ALPS_H
 
+#define ALPS_PROTO_V1   0
+#define ALPS_PROTO_V2   1
+
 struct alps_model_info {
         unsigned char signature[3];
+        unsigned char proto_version;
         unsigned char byte0, mask0;
         unsigned char flags;
 };