From patchwork Tue Dec 8 21:01:50 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vasyl Vavrychuk X-Patchwork-Id: 340009 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-13.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id CA69EC4361B for ; Tue, 8 Dec 2020 21:09:09 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9E76D23B23 for ; Tue, 8 Dec 2020 21:09:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728694AbgLHVIx (ORCPT ); Tue, 8 Dec 2020 16:08:53 -0500 Received: from plasma33.jpberlin.de ([80.241.58.43]:35425 "EHLO plasma33.jpberlin.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726512AbgLHVIx (ORCPT ); Tue, 8 Dec 2020 16:08:53 -0500 X-Greylist: delayed 363 seconds by postgrey-1.27 at vger.kernel.org; Tue, 08 Dec 2020 16:08:52 EST Received: from spamfilter05.heinlein-hosting.de (spamfilter05.heinlein-hosting.de [80.241.56.123]) by plasma.jpberlin.de (Postfix) with ESMTP id 72A57105564; Tue, 8 Dec 2020 22:02:05 +0100 (CET) X-Virus-Scanned: amavisd-new at heinlein-support.de Received: from plasma.jpberlin.de ([80.241.56.76]) by spamfilter05.heinlein-hosting.de (spamfilter05.heinlein-hosting.de [80.241.56.123]) (amavisd-new, port 10030) with ESMTP id szCGRUWyRsVe; Tue, 8 Dec 2020 22:02:01 +0100 (CET) Received: from webmail.opensynergy.com (unknown [217.66.60.5]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-SHA384 (256/256 bits)) (Client CN "*.opensynergy.com", Issuer "Starfield Secure Certificate Authority - G2" (not verified)) (Authenticated sender: opensynergy@jpberlin.de) by plasma.jpberlin.de (Postfix) with ESMTPSA id EB3C11054DC; Tue, 8 Dec 2020 22:02:00 +0100 (CET) From: Vasyl Vavrychuk To: , , , CC: "Michael S. Tsirkin" , Jason Wang , Gerd Hoffmann , Henrik Rydberg , Mathias Crombez , Vasyl Vavrychuk Subject: [PATCH RESEND v2] virtio-input: add multi-touch support Date: Tue, 8 Dec 2020 23:01:50 +0200 Message-ID: <20201208210150.20001-1-vasyl.vavrychuk@opensynergy.com> MIME-Version: 1.0 X-ClientProxiedBy: SR-MAIL-01.open-synergy.com (10.26.10.21) To SR-MAIL-01.open-synergy.com (10.26.10.21) X-MBO-SPAM-Probability: X-Rspamd-Score: -5.38 / 15.00 / 15.00 X-Rspamd-Queue-Id: 72A57105564 X-Rspamd-UID: d20710 Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org From: Mathias Crombez Without multi-touch slots allocated, ABS_MT_SLOT events will be lost by input_handle_abs_event. Signed-off-by: Mathias Crombez Signed-off-by: Vasyl Vavrychuk Tested-by: Vasyl Vavrychuk --- v2: fix patch corrupted by corporate email server drivers/virtio/Kconfig | 11 +++++++++++ drivers/virtio/virtio_input.c | 8 ++++++++ 2 files changed, 19 insertions(+) diff --git a/drivers/virtio/Kconfig b/drivers/virtio/Kconfig index 7b41130d3f35..2cfd5b01d96d 100644 --- a/drivers/virtio/Kconfig +++ b/drivers/virtio/Kconfig @@ -111,6 +111,17 @@ config VIRTIO_INPUT If unsure, say M. +config VIRTIO_INPUT_MULTITOUCH_SLOTS + depends on VIRTIO_INPUT + int "Number of multitouch slots" + range 0 64 + default 10 + help + Define the number of multitouch slots used. Default to 10. + This parameter is unused if there is no multitouch capability. + + 0 will disable the feature. + config VIRTIO_MMIO tristate "Platform bus driver for memory mapped virtio devices" depends on HAS_IOMEM && HAS_DMA diff --git a/drivers/virtio/virtio_input.c b/drivers/virtio/virtio_input.c index f1f6208edcf5..13f3d90e6c30 100644 --- a/drivers/virtio/virtio_input.c +++ b/drivers/virtio/virtio_input.c @@ -7,6 +7,7 @@ #include #include +#include struct virtio_input { struct virtio_device *vdev; @@ -205,6 +206,7 @@ static int virtinput_probe(struct virtio_device *vdev) unsigned long flags; size_t size; int abs, err; + bool is_mt = false; if (!virtio_has_feature(vdev, VIRTIO_F_VERSION_1)) return -ENODEV; @@ -287,9 +289,15 @@ static int virtinput_probe(struct virtio_device *vdev) for (abs = 0; abs < ABS_CNT; abs++) { if (!test_bit(abs, vi->idev->absbit)) continue; + if (input_is_mt_value(abs)) + is_mt = true; virtinput_cfg_abs(vi, abs); } } + if (is_mt) + input_mt_init_slots(vi->idev, + CONFIG_VIRTIO_INPUT_MULTITOUCH_SLOTS, + INPUT_MT_DIRECT); virtio_device_ready(vdev); vi->ready = true;