From mboxrd@z Thu Jan 1 00:00:00 1970 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 CAB2FC04A68 for ; Wed, 27 Jul 2022 16:33:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237973AbiG0QdU (ORCPT ); Wed, 27 Jul 2022 12:33:20 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34498 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237778AbiG0Qcs (ORCPT ); Wed, 27 Jul 2022 12:32:48 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 415E953D04; Wed, 27 Jul 2022 09:26:20 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 5CBC2B821BF; Wed, 27 Jul 2022 16:26:20 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id AC04FC433C1; Wed, 27 Jul 2022 16:26:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1658939179; bh=ZNOEerogwL3QPkDGQqI5U5SJ+ivJ/Zl/Vr1t0W0P1UI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=G4jXdI5fpZELXJPRlxVcY1Kwm//Nyt1foA6OLCc0vlafc45RlzNHVn7wCahCqz1tP bdYFfm0ZGkwx3DPVBJuP0NHGjsef3I+CHvxsbEJZxYCNWZ61tGWnHdNQeAK1H2Ya+6 Tx6tMwEXN4ocjuGfnKD7Y5sUmc8uWrJEdYciowFY= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Benjamin Tissoires , Sasha Levin , Matthias Fend Subject: [PATCH 4.19 40/62] HID: multitouch: add support for the Smart Tech panel Date: Wed, 27 Jul 2022 18:10:49 +0200 Message-Id: <20220727161005.764401878@linuxfoundation.org> X-Mailer: git-send-email 2.37.1 In-Reply-To: <20220727161004.175638564@linuxfoundation.org> References: <20220727161004.175638564@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Benjamin Tissoires [ Upstream commit 69ecd44d68a7bf4caeda39825af720362db69233 ] This panel is not very friendly to us: it exposes multiple multitouch collections, some of them being of logical application stylus. Usually, a device has only one report per application, and that is what I assumed in commit 8dfe14b3b47f ("HID: multitouch: ditch mt_report_id") To avoid breaking all working device, add a new class and a new quirk for that situation. Reported-and-tested-by: Matthias Fend Signed-off-by: Benjamin Tissoires Signed-off-by: Sasha Levin --- drivers/hid/hid-multitouch.c | 34 ++++++++++++++++++++++++++++------ 1 file changed, 28 insertions(+), 6 deletions(-) diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c index 1c4426c60972..ce027eda9b17 100644 --- a/drivers/hid/hid-multitouch.c +++ b/drivers/hid/hid-multitouch.c @@ -72,6 +72,7 @@ MODULE_LICENSE("GPL"); #define MT_QUIRK_STICKY_FINGERS BIT(16) #define MT_QUIRK_ASUS_CUSTOM_UP BIT(17) #define MT_QUIRK_WIN8_PTP_BUTTONS BIT(18) +#define MT_QUIRK_SEPARATE_APP_REPORT BIT(19) #define MT_INPUTMODE_TOUCHSCREEN 0x02 #define MT_INPUTMODE_TOUCHPAD 0x03 @@ -107,6 +108,7 @@ struct mt_usages { struct mt_application { struct list_head list; unsigned int application; + unsigned int report_id; struct list_head mt_usages; /* mt usages list */ __s32 quirks; @@ -207,6 +209,7 @@ static void mt_post_parse(struct mt_device *td, struct mt_application *app); #define MT_CLS_VTL 0x0110 #define MT_CLS_GOOGLE 0x0111 #define MT_CLS_RAZER_BLADE_STEALTH 0x0112 +#define MT_CLS_SMART_TECH 0x0113 #define MT_DEFAULT_MAXCONTACT 10 #define MT_MAX_MAXCONTACT 250 @@ -357,6 +360,12 @@ static const struct mt_class mt_classes[] = { MT_QUIRK_CONTACT_CNT_ACCURATE | MT_QUIRK_WIN8_PTP_BUTTONS, }, + { .name = MT_CLS_SMART_TECH, + .quirks = MT_QUIRK_ALWAYS_VALID | + MT_QUIRK_IGNORE_DUPLICATES | + MT_QUIRK_CONTACT_CNT_ACCURATE | + MT_QUIRK_SEPARATE_APP_REPORT, + }, { } }; @@ -513,8 +522,9 @@ static struct mt_usages *mt_allocate_usage(struct hid_device *hdev, } static struct mt_application *mt_allocate_application(struct mt_device *td, - unsigned int application) + struct hid_report *report) { + unsigned int application = report->application; struct mt_application *mt_application; mt_application = devm_kzalloc(&td->hdev->dev, sizeof(*mt_application), @@ -539,6 +549,7 @@ static struct mt_application *mt_allocate_application(struct mt_device *td, mt_application->scantime = DEFAULT_ZERO; mt_application->raw_cc = DEFAULT_ZERO; mt_application->quirks = td->mtclass.quirks; + mt_application->report_id = report->id; list_add_tail(&mt_application->list, &td->applications); @@ -546,19 +557,23 @@ static struct mt_application *mt_allocate_application(struct mt_device *td, } static struct mt_application *mt_find_application(struct mt_device *td, - unsigned int application) + struct hid_report *report) { + unsigned int application = report->application; struct mt_application *tmp, *mt_application = NULL; list_for_each_entry(tmp, &td->applications, list) { if (application == tmp->application) { - mt_application = tmp; - break; + if (!(td->mtclass.quirks & MT_QUIRK_SEPARATE_APP_REPORT) || + tmp->report_id == report->id) { + mt_application = tmp; + break; + } } } if (!mt_application) - mt_application = mt_allocate_application(td, application); + mt_application = mt_allocate_application(td, report); return mt_application; } @@ -575,7 +590,7 @@ static struct mt_report_data *mt_allocate_report_data(struct mt_device *td, return NULL; rdata->report = report; - rdata->application = mt_find_application(td, report->application); + rdata->application = mt_find_application(td, report); if (!rdata->application) { devm_kfree(&td->hdev->dev, rdata); @@ -1571,6 +1586,9 @@ static int mt_input_configured(struct hid_device *hdev, struct hid_input *hi) case HID_VD_ASUS_CUSTOM_MEDIA_KEYS: suffix = "Custom Media Keys"; break; + case HID_DG_PEN: + suffix = "Stylus"; + break; default: suffix = "UNKNOWN"; break; @@ -2038,6 +2056,10 @@ static const struct hid_device_id mt_devices[] = { HID_DEVICE(BUS_I2C, HID_GROUP_MULTITOUCH_WIN_8, USB_VENDOR_ID_SYNAPTICS, 0x8323) }, + /* Smart Tech panels */ + { .driver_data = MT_CLS_SMART_TECH, + MT_USB_DEVICE(0x0b8c, 0x0092)}, + /* Stantum panels */ { .driver_data = MT_CLS_CONFIDENCE, MT_USB_DEVICE(USB_VENDOR_ID_STANTUM_STM, -- 2.35.1