From patchwork Fri Oct 14 11:15:31 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Eirin Nya X-Patchwork-Id: 615914 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 49A60C4332F for ; Fri, 14 Oct 2022 11:16:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229815AbiJNLQb (ORCPT ); Fri, 14 Oct 2022 07:16:31 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58472 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229836AbiJNLQ0 (ORCPT ); Fri, 14 Oct 2022 07:16:26 -0400 Received: from mail-pl1-x62d.google.com (mail-pl1-x62d.google.com [IPv6:2607:f8b0:4864:20::62d]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 675FD105650; Fri, 14 Oct 2022 04:16:23 -0700 (PDT) Received: by mail-pl1-x62d.google.com with SMTP id f23so4437167plr.6; Fri, 14 Oct 2022 04:16:23 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=gLxzw5+5P9J9R3KO3i/HaA++CGx0Vnt/e4O2kC9C4sY=; b=FG+KOruDTgIzTuTp8m9ioJeEVGqdp7cK890uLZClBTnm+jYTSIPQ1ogCsr5npYoWQ7 aGYvQpJcm+qscQAW+134W75E4i4FIMU4ThzQm+Mz1aWKjBvw31aIf1BHvrmyHdk/pDlr YFQ3lO1CnuUEmOLgnsA7J6YVRIAZfFysb+2RdA0erk9bnmRddZ1ubMgDrKz01lUK+mVX Q4vsW9l9HUOvxU99HhHfcChm4dJLYlLb+tTG1W4vcPwqJZvrN6EJX4/j8F8BbdnUfYND 3rThUKaIcCKKCXRihoVPwneY/1+QX3AdKg7mHNEXg+U7iXPB5B/Qesvph3OdVnkMsen9 H1HA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=gLxzw5+5P9J9R3KO3i/HaA++CGx0Vnt/e4O2kC9C4sY=; b=Uus+Txa56MyD32Lai+o8BAvu/wVIjdL6rxe+61OSLUBeIZonHHDeFTnaURJQCTIRf7 yr18YE1uYcZEJtiUat9TdisV8vLEF3TlqZPkZSFPZwZVvt7tx6+nRdUa8btWVKQAXyWA auaqBgGFeIlTTZ3JVozSS7jvl0RNZx5f7B7UwNJEskSDHo5kNkv+TMFmxrWBjE8twfSl Qc8fCA2Ftx1y0Lb2KANu9D+BnjjhcHkeSfpjc6quR4SQrZt6op0ppAwMD6Gyy5cey0IW YgTMgK8i7DUNKe2+OQbxxBnAIW/6cmsI2acMQeC3OPmPM4TS16hpVUXrM5vd59m+WZrM EsIQ== X-Gm-Message-State: ACrzQf3hKQpioiB6cQDWLBGwzcu+Pg7yd1IX9u6y8sja6WCah9HNU8pg ngw73ElvY/PtbTXblo6hYIrqGfktYSRynA== X-Google-Smtp-Source: AMsMyM6BmWr+snx4QhjAtt6CF3I2QPd72fb9udd8UfYSwhx6lZO3ZvMM3O9V+CyxXIHP4yA2aLRkBg== X-Received: by 2002:a17:903:1d1:b0:17f:6494:f8c3 with SMTP id e17-20020a17090301d100b0017f6494f8c3mr4536833plh.157.1665746182056; Fri, 14 Oct 2022 04:16:22 -0700 (PDT) Received: from dell-void.nyanpasu256.gmail.com.beta.tailscale.net (c-71-202-83-242.hsd1.ca.comcast.net. [71.202.83.242]) by smtp.gmail.com with ESMTPSA id n9-20020a17090aab8900b001fd6066284dsm1304628pjq.6.2022.10.14.04.16.21 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 14 Oct 2022 04:16:21 -0700 (PDT) From: Eirin Nya To: linux-input@vger.kernel.org Cc: linux-kernel@vger.kernel.org, Eirin Nya Subject: [PATCH V2 1/3] Input: elantech - Remove redundant field elantech_data::y_max Date: Fri, 14 Oct 2022 04:15:31 -0700 Message-Id: <20221014111533.908-2-nyanpasu256@gmail.com> X-Mailer: git-send-email 2.38.0 In-Reply-To: <20221014111533.908-1-nyanpasu256@gmail.com> References: <20221014111533.908-1-nyanpasu256@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org elantech_data::y_max is copied from elantech_device_info::y_max, and neither is mutated after initialization. So remove the redundant variable to prevent future bugs when updating y_max. Signed-off-by: Eirin Nya --- drivers/input/mouse/elantech.c | 17 ++++++++--------- drivers/input/mouse/elantech.h | 1 - 2 files changed, 8 insertions(+), 10 deletions(-) diff --git a/drivers/input/mouse/elantech.c b/drivers/input/mouse/elantech.c index ece97f8c6a..79e31611fc 100644 --- a/drivers/input/mouse/elantech.c +++ b/drivers/input/mouse/elantech.c @@ -360,7 +360,7 @@ static void elantech_report_absolute_v1(struct psmouse *psmouse) input_report_abs(dev, ABS_X, ((packet[1] & 0x0c) << 6) | packet[2]); input_report_abs(dev, ABS_Y, - etd->y_max - (((packet[1] & 0x03) << 8) | packet[3])); + etd->info.y_max - (((packet[1] & 0x03) << 8) | packet[3])); } input_report_key(dev, BTN_TOOL_FINGER, fingers == 1); @@ -435,7 +435,7 @@ static void elantech_report_absolute_v2(struct psmouse *psmouse) * byte 4: . . . . y11 y10 y9 y8 * byte 5: y7 y6 y5 y4 y3 y2 y1 y0 */ - y1 = etd->y_max - (((packet[4] & 0x0f) << 8) | packet[5]); + y1 = etd->info.y_max - (((packet[4] & 0x0f) << 8) | packet[5]); pres = (packet[1] & 0xf0) | ((packet[4] & 0xf0) >> 4); width = ((packet[0] & 0x30) >> 2) | ((packet[3] & 0x30) >> 4); @@ -450,7 +450,7 @@ static void elantech_report_absolute_v2(struct psmouse *psmouse) */ x1 = (((packet[0] & 0x10) << 4) | packet[1]) << 2; /* byte 2: ay7 ay6 ay5 ay4 ay3 ay2 ay1 ay0 */ - y1 = etd->y_max - + y1 = etd->info.y_max - ((((packet[0] & 0x20) << 3) | packet[2]) << 2); /* * byte 3: . . by8 bx8 . . . . @@ -458,7 +458,7 @@ static void elantech_report_absolute_v2(struct psmouse *psmouse) */ x2 = (((packet[3] & 0x10) << 4) | packet[4]) << 2; /* byte 5: by7 by8 by5 by4 by3 by2 by1 by0 */ - y2 = etd->y_max - + y2 = etd->info.y_max - ((((packet[3] & 0x20) << 3) | packet[5]) << 2); /* Unknown so just report sensible values */ @@ -579,7 +579,7 @@ static void elantech_report_absolute_v3(struct psmouse *psmouse, * byte 4: . . . . y11 y10 y9 y8 * byte 5: y7 y6 y5 y4 y3 y2 y1 y0 */ - y1 = etd->y_max - (((packet[4] & 0x0f) << 8) | packet[5]); + y1 = etd->info.y_max - (((packet[4] & 0x0f) << 8) | packet[5]); break; case 2: @@ -593,7 +593,7 @@ static void elantech_report_absolute_v3(struct psmouse *psmouse, * byte 4: . . . . ay11 ay10 ay9 ay8 * byte 5: ay7 ay6 ay5 ay4 ay3 ay2 ay1 ay0 */ - etd->mt[0].y = etd->y_max - + etd->mt[0].y = etd->info.y_max - (((packet[4] & 0x0f) << 8) | packet[5]); /* * wait for next packet @@ -605,7 +605,7 @@ static void elantech_report_absolute_v3(struct psmouse *psmouse, x1 = etd->mt[0].x; y1 = etd->mt[0].y; x2 = ((packet[1] & 0x0f) << 8) | packet[2]; - y2 = etd->y_max - (((packet[4] & 0x0f) << 8) | packet[5]); + y2 = etd->info.y_max - (((packet[4] & 0x0f) << 8) | packet[5]); break; } @@ -681,7 +681,7 @@ static void process_packet_head_v4(struct psmouse *psmouse) return; etd->mt[id].x = ((packet[1] & 0x0f) << 8) | packet[2]; - etd->mt[id].y = etd->y_max - (((packet[4] & 0x0f) << 8) | packet[5]); + etd->mt[id].y = etd->info.y_max - (((packet[4] & 0x0f) << 8) | packet[5]); pres = (packet[1] & 0xf0) | ((packet[4] & 0xf0) >> 4); traces = (packet[0] & 0xf0) >> 4; @@ -1253,7 +1253,6 @@ static int elantech_set_input_params(struct psmouse *psmouse) input_abs_set_res(dev, ABS_MT_POSITION_Y, info->y_res); } - etd->y_max = y_max; etd->width = width; return 0; diff --git a/drivers/input/mouse/elantech.h b/drivers/input/mouse/elantech.h index 571e6ca11d..1ec004f72d 100644 --- a/drivers/input/mouse/elantech.h +++ b/drivers/input/mouse/elantech.h @@ -180,7 +180,6 @@ struct elantech_data { unsigned char reg_25; unsigned char reg_26; unsigned int single_finger_reports; - unsigned int y_max; unsigned int width; struct finger_pos mt[ETP_MAX_FINGERS]; unsigned char parity[256]; From patchwork Fri Oct 14 11:15:32 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Eirin Nya X-Patchwork-Id: 615915 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id D67A8C4332F for ; Fri, 14 Oct 2022 11:16:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229824AbiJNLQ2 (ORCPT ); Fri, 14 Oct 2022 07:16:28 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58514 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229826AbiJNLQ1 (ORCPT ); Fri, 14 Oct 2022 07:16:27 -0400 Received: from mail-pj1-x1035.google.com (mail-pj1-x1035.google.com [IPv6:2607:f8b0:4864:20::1035]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A9991108DCD; 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[71.202.83.242]) by smtp.gmail.com with ESMTPSA id n9-20020a17090aab8900b001fd6066284dsm1304628pjq.6.2022.10.14.04.16.23 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 14 Oct 2022 04:16:23 -0700 (PDT) From: Eirin Nya To: linux-input@vger.kernel.org Cc: linux-kernel@vger.kernel.org, Eirin Nya Subject: [PATCH V2 2/3] Input: elantech - Remove redundant field elantech_data::width Date: Fri, 14 Oct 2022 04:15:32 -0700 Message-Id: <20221014111533.908-3-nyanpasu256@gmail.com> X-Mailer: git-send-email 2.38.0 In-Reply-To: <20221014111533.908-1-nyanpasu256@gmail.com> References: <20221014111533.908-1-nyanpasu256@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org elantech_data::width is copied from elantech_device_info::width, and neither is mutated after initialization. So remove the redundant variable to prevent future bugs. Signed-off-by: Eirin Nya --- drivers/input/mouse/elantech.c | 4 +--- drivers/input/mouse/elantech.h | 1 - 2 files changed, 1 insertion(+), 4 deletions(-) diff --git a/drivers/input/mouse/elantech.c b/drivers/input/mouse/elantech.c index 79e31611fc..263779c031 100644 --- a/drivers/input/mouse/elantech.c +++ b/drivers/input/mouse/elantech.c @@ -691,7 +691,7 @@ static void process_packet_head_v4(struct psmouse *psmouse) input_report_abs(dev, ABS_MT_POSITION_X, etd->mt[id].x); input_report_abs(dev, ABS_MT_POSITION_Y, etd->mt[id].y); input_report_abs(dev, ABS_MT_PRESSURE, pres); - input_report_abs(dev, ABS_MT_TOUCH_MAJOR, traces * etd->width); + input_report_abs(dev, ABS_MT_TOUCH_MAJOR, traces * etd->info.width); /* report this for backwards compatibility */ input_report_abs(dev, ABS_TOOL_WIDTH, traces); @@ -1253,8 +1253,6 @@ static int elantech_set_input_params(struct psmouse *psmouse) input_abs_set_res(dev, ABS_MT_POSITION_Y, info->y_res); } - etd->width = width; - return 0; } diff --git a/drivers/input/mouse/elantech.h b/drivers/input/mouse/elantech.h index 1ec004f72d..fb093134ea 100644 --- a/drivers/input/mouse/elantech.h +++ b/drivers/input/mouse/elantech.h @@ -180,7 +180,6 @@ struct elantech_data { unsigned char reg_25; unsigned char reg_26; unsigned int single_finger_reports; - unsigned int width; struct finger_pos mt[ETP_MAX_FINGERS]; unsigned char parity[256]; struct elantech_device_info info; From patchwork Fri Oct 14 11:15:33 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Eirin Nya X-Patchwork-Id: 615159 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 98618C433FE for ; Fri, 14 Oct 2022 11:16:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229850AbiJNLQ3 (ORCPT ); Fri, 14 Oct 2022 07:16:29 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58528 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229847AbiJNLQ1 (ORCPT ); Fri, 14 Oct 2022 07:16:27 -0400 Received: from mail-pj1-x1031.google.com (mail-pj1-x1031.google.com [IPv6:2607:f8b0:4864:20::1031]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id EBFD71119E5; Fri, 14 Oct 2022 04:16:25 -0700 (PDT) Received: by mail-pj1-x1031.google.com with SMTP id d7-20020a17090a2a4700b0020d268b1f02so7626746pjg.1; Fri, 14 Oct 2022 04:16:25 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=IQ9x1DKTDjWXt2rrutxCXuZDyQghZxj5+fEV2TfvAvs=; b=GGR9QAAHAfGR9wweKWtDevR/eOldcfQ/e3droNg75WCBIpN/C/lma0OPWhc8Hd4U9V YjnZxHcC9hcfeFfwycH8GwZRAdKsHsj+yD0uazhdKYcbsGCd+kMPULTc8spBWEAZQ3uX jvP9oHCKS3C5VWdxjNLJoppUf4j7M9WWQYzw//4O/fqseNDD81EwxfP/PgAY+O/6/C2i 7vjmV5PM9vz9VqLfe5xWXLUUCFj5T9apYLbLdcmTHSZuXY+M+xiB0JEol8+ShyZLsUxb PKOpZgyih+6xnf8kXEMaB/esQNABS/qy38N9Dx8VejPPQYP3S4DJtEO6goan4wWikLVp Dd9Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=IQ9x1DKTDjWXt2rrutxCXuZDyQghZxj5+fEV2TfvAvs=; b=DL6nvpwxrOsyO+UZQFvKXjW+GDQTkgXzHz5SY5vH2fqdgUA+jeZVEPIePewlBSp1tl g5+idqpdCYFuZo4rBS+wEeOO80jTqjqnO8hl5ka43hYcCzeRLqi3kEkWd8cPf4i6XrGD e+LsgddLiawlu8aSl8CSaLd740wV+uYhaHZLh3Jq1isNbCxskRj8Mf7JU1lrSdrSrGAg gxdDsG76SNEhqoFYLhwmO5EnPt+vypXDi1KT7OhUmxjEC1RrZxAzV6+vU+4b/tonV+fp 5XZLcpmyoR+b61HcEDcqW7fWLEb+HkspE34Bl5Ke5ZItPO4i9VOk9pQNd+kz76mj0s88 nx+Q== X-Gm-Message-State: ACrzQf1YzJvJQc5EIPxEmrC0f58SPcHEJkBCO4JfTWk98K1bDaldE0aG dBX2/es442cuhPqY6mWQIhaD46Q5lVRTVw== X-Google-Smtp-Source: AMsMyM7aDREuTHl33wnQ/JXerAa++TTxykddWXni6Bj6WI5JVwfUP0KF13Cqh5ADZVOarFqL0oCiKg== X-Received: by 2002:a17:90b:400f:b0:20a:9965:ef08 with SMTP id ie15-20020a17090b400f00b0020a9965ef08mr5338283pjb.155.1665746185246; Fri, 14 Oct 2022 04:16:25 -0700 (PDT) Received: from dell-void.nyanpasu256.gmail.com.beta.tailscale.net (c-71-202-83-242.hsd1.ca.comcast.net. [71.202.83.242]) by smtp.gmail.com with ESMTPSA id n9-20020a17090aab8900b001fd6066284dsm1304628pjq.6.2022.10.14.04.16.24 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 14 Oct 2022 04:16:24 -0700 (PDT) From: Eirin Nya To: linux-input@vger.kernel.org Cc: linux-kernel@vger.kernel.org, Eirin Nya Subject: [PATCH V2 3/3] Input: elantech - Fix incorrectly halved touchpad range on ELAN v3 touchpads Date: Fri, 14 Oct 2022 04:15:33 -0700 Message-Id: <20221014111533.908-4-nyanpasu256@gmail.com> X-Mailer: git-send-email 2.38.0 In-Reply-To: <20221014111533.908-1-nyanpasu256@gmail.com> References: <20221014111533.908-1-nyanpasu256@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org On Linux 5.19.10, on my laptop (Dell Inspiron 15R SE 7520) with an Elan v3 touchpad (dmesg says "with firmware version 0x450f02"), the reported size of my touchpad (in userspace by calling mtdev_configure() and libevdev_get_abs_maximum(), in kernel space elantech_device_info::x_max/y_max, either way 1470 by 700) is half that of the actual touch range (2940 by 1400), and the upper half of my touchpad reports negative values. As a result, with the Synaptics or libinput X11 driver set to edge scrolling mode, the entire right half of my touchpad has x-values past evdev's reported maximum size, and acts as a giant scrollbar! The problem is that elantech_setup_ps2() -> elantech_set_absolute_mode() sets up absolute mode and doubles the hardware resolution (doubling the hardware's maximum reported x/y coordinates and its response to ETP_FW_ID_QUERY), *after* elantech_query_info() fetches the touchpad coordinate system size using ETP_FW_ID_QUERY, which gets cached and reported to userspace through ioctl(fd, EVIOCGABS(ABS_X/Y), ...). So the touchpad size reported to userspace (and used to subtract vertical coordinates from) is half the maximum position of actual touches. This patch splits out a function elantech_query_range_v3() which fetches *only* ETP_FW_ID_QUERY (touchpad size), and calls it a second time if elantech_set_absolute_mode() enables double-size mode. This means the first call is redundant and wasted if a second call occurs, but this minimizes the need to restructure the driver. Link: https://lore.kernel.org/linux-input/CAL57YxZNutUVxBtvbVWKMw-V2kqeVB5kTQ5BFdJmN=mdPq8Q8Q@mail.gmail.com/ Link: https://lore.kernel.org/linux-input/20221008093437.72d0f6b0@dell-void.nyanpasu256.gmail.com.beta.tailscale.net/ Fixes: 37548659bb22 ("Input: elantech - query the min/max information beforehand too") Signed-off-by: Eirin Nya Reviewed-by: Mattijs Korpershoek --- Notes: Should we move (elantech_set_absolute_mode -> elantech_write_reg(...0x0b or 0x01)) *earlier* into elantech_query_info() before "query range information"? See discussion at https://lore.kernel.org/linux-input/20221008093437.72d0f6b0@dell-void.nyanpasu256.gmail.com.beta.tailscale.net/ drivers/input/mouse/elantech.c | 30 ++++++++++++++++++++++++++---- 1 file changed, 26 insertions(+), 4 deletions(-) diff --git a/drivers/input/mouse/elantech.c b/drivers/input/mouse/elantech.c index 263779c031..a2176f0fd3 100644 --- a/drivers/input/mouse/elantech.c +++ b/drivers/input/mouse/elantech.c @@ -1006,6 +1006,9 @@ static void elantech_set_rate_restore_reg_07(struct psmouse *psmouse, psmouse_err(psmouse, "restoring reg_07 failed\n"); } +static int elantech_query_range_v3(struct psmouse *psmouse, + struct elantech_device_info *info); + /* * Put the touchpad into absolute mode */ @@ -1047,6 +1050,14 @@ static int elantech_set_absolute_mode(struct psmouse *psmouse) if (elantech_write_reg(psmouse, 0x10, etd->reg_10)) rc = -1; + /* + * If we boost hardware resolution, we have to re-query + * info->x_max and y_max. + */ + if (etd->info.set_hw_resolution) + if (elantech_query_range_v3(psmouse, &etd->info)) + rc = -1; + break; case 4: @@ -1671,6 +1682,20 @@ static int elantech_set_properties(struct elantech_device_info *info) return 0; } +static int elantech_query_range_v3(struct psmouse *psmouse, + struct elantech_device_info *info) +{ + unsigned char param[3]; + + if (info->send_cmd(psmouse, ETP_FW_ID_QUERY, param)) + return -EINVAL; + + info->x_max = (0x0f & param[0]) << 8 | param[1]; + info->y_max = (0xf0 & param[0]) << 4 | param[2]; + + return 0; +} + static int elantech_query_info(struct psmouse *psmouse, struct elantech_device_info *info) { @@ -1826,11 +1851,8 @@ static int elantech_query_info(struct psmouse *psmouse, break; case 3: - if (info->send_cmd(psmouse, ETP_FW_ID_QUERY, param)) + if (elantech_query_range_v3(psmouse, info)) return -EINVAL; - - info->x_max = (0x0f & param[0]) << 8 | param[1]; - info->y_max = (0xf0 & param[0]) << 4 | param[2]; break; case 4: