From: Chris Bagwell <chris@cnpbagwell.com>
Date: Sun, 12 Sep 2010 07:12:28 +0000 (-0700)
Subject: Input: wacom - disable Bamboo touchpad when pen is being used
X-Git-Tag: v2.6.37-rc1~5^2~3^2~40
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=33d5f713a19b0f5cb93e0594f7206d2730cf39da;p=platform%2Fkernel%2Flinux-3.10.git

Input: wacom - disable Bamboo touchpad when pen is being used

Signed-off-by: Chris Bagwell <chris@cnpbagwell.com>
Acked-by: Ping Cheng <pingc@wacom.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
---

diff --git a/drivers/input/tablet/wacom_wac.c b/drivers/input/tablet/wacom_wac.c
index 536156b..e1b65ba 100644
--- a/drivers/input/tablet/wacom_wac.c
+++ b/drivers/input/tablet/wacom_wac.c
@@ -866,7 +866,13 @@ static int wacom_bpt_touch(struct wacom_wac *wacom)
 	for (i = 0; i < 2; i++) {
 		int p = data[9 * i + 2];
 		input_mt_slot(input, i);
-		if (p) {
+		/*
+		 * Touch events need to be disabled while stylus is
+		 * in proximity because user's hand is resting on touchpad
+		 * and sending unwanted events.  User expects tablet buttons
+		 * to continue working though.
+		 */
+		if (p && !wacom->shared->stylus_in_proximity) {
 			int x = get_unaligned_be16(&data[9 * i + 3]) & 0x7ff;
 			int y = get_unaligned_be16(&data[9 * i + 5]) & 0x7ff;
 			if (features->quirks & WACOM_QUIRK_BBTOUCH_LOWRES) {