From mboxrd@z Thu Jan 1 00:00:00 1970 From: JJ Ding Subject: [PATCH v2 1/7] Input: elantech - correct x, y value range for v2 hardware Date: Wed, 24 Aug 2011 13:44:40 +0800 Message-ID: <1314164686-866-2-git-send-email-jj_ding@emc.com.tw> References: <1314164686-866-1-git-send-email-jj_ding@emc.com.tw> Return-path: Received: from emcscan.emc.com.tw ([192.72.220.5]:33543 "EHLO emcscan.emc.com.tw" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750835Ab1HXFmW (ORCPT ); Wed, 24 Aug 2011 01:42:22 -0400 In-Reply-To: <1314164686-866-1-git-send-email-jj_ding@emc.com.tw> Sender: linux-input-owner@vger.kernel.org List-Id: linux-input@vger.kernel.org To: linux-input@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Seth Forshee , Dmitry Torokhov , Aaron Huang , Tom Lin , =?UTF-8?q?=C3=89ric=20Piel?= , Daniel Kurtz , Chase Douglas , Henrik Rydberg , Alessandro Rubini , JJ Ding x, y values are actually 12-bit long. Also update protocol document to reflect the change. Signed-off-by: JJ Ding --- Documentation/input/elantech.txt | 8 ++++---- drivers/input/mouse/elantech.c | 8 ++++---- 2 files changed, 8 insertions(+), 8 deletions(-) diff --git a/Documentation/input/elantech.txt b/Documentation/input/elantech.txt index db798af..bce9941 100644 --- a/Documentation/input/elantech.txt +++ b/Documentation/input/elantech.txt @@ -389,14 +389,14 @@ byte 0: byte 1: bit 7 6 5 4 3 2 1 0 - p7 p6 p5 p4 . x10 x9 x8 + p7 p6 p5 p4 x11 x10 x9 x8 byte 2: bit 7 6 5 4 3 2 1 0 x7 x6 x5 x4 x3 x2 x1 x0 - x10..x0 = absolute x value (horizontal) + x11..x0 = absolute x value (horizontal) byte 3: @@ -420,7 +420,7 @@ byte 3: byte 4: bit 7 6 5 4 3 2 1 0 - p3 p1 p2 p0 . . y9 y8 + p3 p1 p2 p0 y11 y10 y9 y8 p7..p0 = pressure (not EF113) @@ -429,7 +429,7 @@ byte 5: bit 7 6 5 4 3 2 1 0 y7 y6 y5 y4 y3 y2 y1 y0 - y9..y0 = absolute y value (vertical) + y11..y0 = absolute y value (vertical) 4.2.2 Two finger touch diff --git a/drivers/input/mouse/elantech.c b/drivers/input/mouse/elantech.c index 3250356..da161da 100644 --- a/drivers/input/mouse/elantech.c +++ b/drivers/input/mouse/elantech.c @@ -290,15 +290,15 @@ static void elantech_report_absolute_v2(struct psmouse *psmouse) /* pass through... */ case 1: /* - * byte 1: . . . . . x10 x9 x8 + * byte 1: . . . . x11 x10 x9 x8 * byte 2: x7 x6 x5 x4 x4 x2 x1 x0 */ - x1 = ((packet[1] & 0x07) << 8) | packet[2]; + x1 = ((packet[1] & 0x0f) << 8) | packet[2]; /* - * byte 4: . . . . . . y9 y8 + * byte 4: . . . . y11 y10 y9 y8 * byte 5: y7 y6 y5 y4 y3 y2 y1 y0 */ - y1 = ETP_YMAX_V2 - (((packet[4] & 0x03) << 8) | packet[5]); + y1 = ETP_YMAX_V2 - (((packet[4] & 0x0f) << 8) | packet[5]); input_report_abs(dev, ABS_X, x1); input_report_abs(dev, ABS_Y, y1); -- 1.7.4.1