From patchwork Fri May 13 21:52:37 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ping Cheng X-Patchwork-Id: 572346 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 579C8C433EF for ; Fri, 13 May 2022 21:52:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1380222AbiEMVwo (ORCPT ); Fri, 13 May 2022 17:52:44 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47846 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1353675AbiEMVwn (ORCPT ); Fri, 13 May 2022 17:52:43 -0400 Received: from mail-pl1-x62b.google.com (mail-pl1-x62b.google.com [IPv6:2607:f8b0:4864:20::62b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DA2F125287 for ; Fri, 13 May 2022 14:52:41 -0700 (PDT) Received: by mail-pl1-x62b.google.com with SMTP id n8so9193389plh.1 for ; Fri, 13 May 2022 14:52:41 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=A3DeCmyzMOhZ5g1MUUwlkj6rPj8RtVX0Xz0D5cC6IVM=; b=gYI/RHQCEkl4YmyegbByaWZvkpxY9b8fxkAaNtzO7PAbk8/FbEi6StOGplDt7HpTp5 xNBkVHuQdhufTMXJN0tVNFZLQbG+CeJ78Pi9j0FKbl1sMRf1Vx6B4XXrjTfTlChK6UEF QQ4/SW26zSuGYP7yQyHs5r2rAffq8Lv76dfFmKmT5g+PMwWsbiYYYmDyLb4WobqfmLs0 dkp/3aV6pUdWcW3aOw700GPGrLrsFxYCb6WmPXiN5G2C3liM3wklh43fZlqHUkkaoIYN rXG20ib+s5q62m84vyhQIvLQNFMJUHelJ6XnnBeGE6rX2dGxG1sTKj/bduiTZkX7yl2j vnxg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=A3DeCmyzMOhZ5g1MUUwlkj6rPj8RtVX0Xz0D5cC6IVM=; b=4/fk6UPmZ81AsQTKcHnymxqAJhBo3fYkYCZq0YinQ+9hr73tfLVHv3VhR4fmCAZDIG dYHVHFOnqcQJ0YTYMGS9ITn/z6K13W8CTGGjPQx1KE+/LRDQqN+dnVn7KROXqU8X1bbO PUW9iI3obJ37HMy91K4+O5JZ/ngk5bBLtTaEB2tThck9jUUfbqNJGgnZq7E+8AjHLxfk MP+jQtFzow90npT+ehdKoXvSZGTmp/3tCmIX+3VwEn4v2wdGtMmZenoYN/nL2+NYGoiy xHTCBRo8uYIk0ZwO+7BSbTUupAepqbknw+ngqsgdYj+09r3kp0boFBd8ar0D/eA7TUay 80fQ== X-Gm-Message-State: AOAM533vmns1ZmBjNgXlwBH/4dXzelp9PdO3PExjZwxyvVPqL83Ws6vh o0jy3t2dNcykHpNK0jAqWTb7Lrr0tmo= X-Google-Smtp-Source: ABdhPJz4kiZlWcKszY/eKi515GD4Uq/L/RYyvw9wcUvOwktK5sHgupDAEKOsL0te6Z29f91kgnyCJA== X-Received: by 2002:a17:902:d541:b0:15e:ba3a:90d2 with SMTP id z1-20020a170902d54100b0015eba3a90d2mr6580824plf.11.1652478761349; Fri, 13 May 2022 14:52:41 -0700 (PDT) Received: from localhost.localdomain ([2601:1c2:4f00:cef0:71f2:2d00:2ce2:66bf]) by smtp.gmail.com with ESMTPSA id u21-20020a17090ae01500b001d5e1b124a0sm4066449pjy.7.2022.05.13.14.52.40 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 13 May 2022 14:52:41 -0700 (PDT) From: Ping Cheng X-Google-Original-From: Ping Cheng To: jikos@kernel.org Cc: linux-input@vger.kernel.org, Aaron.Skomra@wacom.com, joshua.dickens@wacom.com, Ping Cheng , Jason Gerecke Subject: [PATCH 2/2] HID: wacom: Don't register pad_input for touch switch Date: Fri, 13 May 2022 14:52:37 -0700 Message-Id: <20220513215237.15121-1-ping.cheng@wacom.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org Touch switch state is received through WACOM_PAD_FIELD. However, it is reported by touch_input. Don't register pad_input if no other pad events require the interface. Signed-off-by: Ping Cheng Reviewed-by: Jason Gerecke --- drivers/hid/wacom_sys.c | 2 +- drivers/hid/wacom_wac.c | 43 ++++++++++++++++++++++++----------------- 2 files changed, 26 insertions(+), 19 deletions(-) diff --git a/drivers/hid/wacom_sys.c b/drivers/hid/wacom_sys.c index 066c567dbaa2..9a81e63c330e 100644 --- a/drivers/hid/wacom_sys.c +++ b/drivers/hid/wacom_sys.c @@ -2121,7 +2121,7 @@ static int wacom_register_inputs(struct wacom *wacom) error = wacom_setup_pad_input_capabilities(pad_input_dev, wacom_wac); if (error) { - /* no pad in use on this interface */ + /* no pad events using this interface */ input_free_device(pad_input_dev); wacom_wac->pad_input = NULL; pad_input_dev = NULL; diff --git a/drivers/hid/wacom_wac.c b/drivers/hid/wacom_wac.c index 3bee4f46003d..6491dc6b3ea8 100644 --- a/drivers/hid/wacom_wac.c +++ b/drivers/hid/wacom_wac.c @@ -2017,7 +2017,6 @@ static void wacom_wac_pad_usage_mapping(struct hid_device *hdev, wacom_wac->has_mute_touch_switch = true; usage->type = EV_SW; usage->code = SW_MUTE_DEVICE; - features->device_type |= WACOM_DEVICETYPE_PAD; break; case WACOM_HID_WD_TOUCHSTRIP: wacom_map_usage(input, usage, field, EV_ABS, ABS_RX, 0); @@ -2097,6 +2096,30 @@ static void wacom_wac_pad_event(struct hid_device *hdev, struct hid_field *field wacom_wac->hid_data.inrange_state |= value; } + /* Process touch switch state first since it is reported through touch interface, + * which is indepentent of pad interface. In the case when there are no other pad + * events, the pad interface will not even be created. + */ + if ((equivalent_usage == WACOM_HID_WD_MUTE_DEVICE) || + (equivalent_usage == WACOM_HID_WD_TOUCHONOFF)) { + if (wacom_wac->shared->touch_input) { + bool *is_touch_on = &wacom_wac->shared->is_touch_on; + + if (equivalent_usage == WACOM_HID_WD_MUTE_DEVICE && value) + *is_touch_on = !(*is_touch_on); + else if (equivalent_usage == WACOM_HID_WD_TOUCHONOFF) + *is_touch_on = value; + + input_report_switch(wacom_wac->shared->touch_input, + SW_MUTE_DEVICE, !(*is_touch_on)); + input_sync(wacom_wac->shared->touch_input); + } + return; + } + + if (!input) + return; + switch (equivalent_usage) { case WACOM_HID_WD_TOUCHRING: /* @@ -2132,22 +2155,6 @@ static void wacom_wac_pad_event(struct hid_device *hdev, struct hid_field *field input_event(input, usage->type, usage->code, 0); break; - case WACOM_HID_WD_MUTE_DEVICE: - case WACOM_HID_WD_TOUCHONOFF: - if (wacom_wac->shared->touch_input) { - bool *is_touch_on = &wacom_wac->shared->is_touch_on; - - if (equivalent_usage == WACOM_HID_WD_MUTE_DEVICE && value) - *is_touch_on = !(*is_touch_on); - else if (equivalent_usage == WACOM_HID_WD_TOUCHONOFF) - *is_touch_on = value; - - input_report_switch(wacom_wac->shared->touch_input, - SW_MUTE_DEVICE, !(*is_touch_on)); - input_sync(wacom_wac->shared->touch_input); - } - break; - case WACOM_HID_WD_MODE_CHANGE: if (wacom_wac->is_direct_mode != value) { wacom_wac->is_direct_mode = value; @@ -2808,7 +2815,7 @@ void wacom_wac_event(struct hid_device *hdev, struct hid_field *field, /* usage tests must precede field tests */ if (WACOM_BATTERY_USAGE(usage)) wacom_wac_battery_event(hdev, field, usage, value); - else if (WACOM_PAD_FIELD(field) && wacom->wacom_wac.pad_input) + else if (WACOM_PAD_FIELD(field)) wacom_wac_pad_event(hdev, field, usage, value); else if (WACOM_PEN_FIELD(field) && wacom->wacom_wac.pen_input) wacom_wac_pen_event(hdev, field, usage, value);