From 4a4d71a277c26464bc6c844a3d3eae9d8e12904a Mon Sep 17 00:00:00 2001
From: Oskari Saarenmaa <os@ohmu.fi>
Date: Tue, 3 Apr 2012 09:46:32 -0700
Subject: [PATCH] Input: sentelic - filter taps in absolute mode
BugLink: http://bugs.launchpad.net/bugs/969334
Taps in absolute positioning single-finger mode are currently reported
as physical clicks by the driver. This should be handled by userspace,
not the kernel.
When a tap occurs, the FSP_PB0_LBTN bit is set, but the FSP_PB0_PHY_BTN
is not. We use this to filter out physical clicks from taps.
Signed-off-by: Oskari Saarenmaa <os@ohmu.fi>
Reviewed-by: Tai-hwa Liang <avatar@sentelic.com>
Reviewed-by: Chase Douglas <chase.douglas@canonical.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
(cherry picked from commit d626dad58f02e13730ded6ac84d6a9e53123f0e8)
Signed-off-by: Tim Gardner <tim.gardner@canonical.com>
Acked-by: Chase Douglas <chase.douglas@canonical.com>
---
drivers/input/mouse/sentelic.c | 8 ++++++++
1 file changed, 8 insertions(+)
@@ -720,6 +720,14 @@ static psmouse_ret_t fsp_process_byte(struct psmouse *psmouse)
}
} else {
/* SFAC packet */
+ if ((packet[0] & (FSP_PB0_LBTN|FSP_PB0_PHY_BTN)) ==
+ FSP_PB0_LBTN) {
+ /* On-pad click in SFAC mode should be handled
+ * by userspace. On-pad clicks in MFMC mode
+ * are real clickpad clicks, and not ignored.
+ */
+ packet[0] &= ~FSP_PB0_LBTN;
+ }
/* no multi-finger information */
ad->last_mt_fgr = 0;
--
1.7.9.5