From patchwork Wed Apr 10 14:54:47 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hans de Goede X-Patchwork-Id: 10894143 X-Patchwork-Delegate: jikos@jikos.cz Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id E4E6B13B5 for ; Wed, 10 Apr 2019 14:55:54 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id CB23D28870 for ; Wed, 10 Apr 2019 14:55:54 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id C953628A44; Wed, 10 Apr 2019 14:55:54 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 4A0C528A74 for ; Wed, 10 Apr 2019 14:55:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732870AbfDJOzx (ORCPT ); Wed, 10 Apr 2019 10:55:53 -0400 Received: from mx1.redhat.com ([209.132.183.28]:55894 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732944AbfDJOzx (ORCPT ); Wed, 10 Apr 2019 10:55:53 -0400 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id E6655C05D275; Wed, 10 Apr 2019 14:55:52 +0000 (UTC) Received: from shalem.localdomain.com (ovpn-116-249.ams2.redhat.com [10.36.116.249]) by smtp.corp.redhat.com (Postfix) with ESMTP id C8AB161102; Wed, 10 Apr 2019 14:55:51 +0000 (UTC) From: Hans de Goede To: Jiri Kosina , Benjamin Tissoires Cc: Hans de Goede , Nestor Lopez Casado , linux-input@vger.kernel.org Subject: [PATCH v2 25/37] HID: logitech-hidpp: make .probe usbhid capable Date: Wed, 10 Apr 2019 16:54:47 +0200 Message-Id: <20190410145459.11430-26-hdegoede@redhat.com> In-Reply-To: <20190410145459.11430-1-hdegoede@redhat.com> References: <20190410145459.11430-1-hdegoede@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.31]); Wed, 10 Apr 2019 14:55:52 +0000 (UTC) Sender: linux-input-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Benjamin Tissoires The current custom solution for the G920 is not the best because hid_hw_start() is not called at the end of the .probe(). It means that any configuration retrieved after the initial hid_hw_start would not be exposed to user space without races. We can simply force hid_hw_start to just enable the transport layer by not using a connect_mask. This way, we can have a common path between USB, Unifying and Bluetooth devices. With this change, we can now support the non DJ receivers for low end devices, which will allow us to fetch the actual names of the paired device (instead of 'Logitech Wireless Receiver') Tested with a M185 with the non unifying receiver, a T650 and many other unifying devices, and the T651 over Bluetooth. Signed-off-by: Benjamin Tissoires --- drivers/hid/hid-logitech-hidpp.c | 86 +++++++++++++++++--------------- 1 file changed, 45 insertions(+), 41 deletions(-) diff --git a/drivers/hid/hid-logitech-hidpp.c b/drivers/hid/hid-logitech-hidpp.c index 3b4d466963af..b389fcc1a894 100644 --- a/drivers/hid/hid-logitech-hidpp.c +++ b/drivers/hid/hid-logitech-hidpp.c @@ -3316,24 +3316,23 @@ static int hidpp_probe(struct hid_device *hdev, const struct hid_device_id *id) hid_warn(hdev, "Cannot allocate sysfs group for %s\n", hdev->name); - if (hidpp->quirks & HIDPP_QUIRK_NO_HIDINPUT) - connect_mask &= ~HID_CONNECT_HIDINPUT; - - if (hidpp->quirks & HIDPP_QUIRK_CLASS_G920) { - ret = hid_hw_start(hdev, connect_mask); - if (ret) { - hid_err(hdev, "hw start failed\n"); - goto hid_hw_start_fail; - } - ret = hid_hw_open(hdev); - if (ret < 0) { - dev_err(&hdev->dev, "%s:hid_hw_open returned error:%d\n", - __func__, ret); - hid_hw_stop(hdev); - goto hid_hw_start_fail; - } + /* + * Plain USB connections need to actually call start and open + * on the transport driver to allow incoming data. + */ + ret = hid_hw_start(hdev, 0); + if (ret) { + hid_err(hdev, "hw start failed\n"); + goto hid_hw_start_fail; } + ret = hid_hw_open(hdev); + if (ret < 0) { + dev_err(&hdev->dev, "%s:hid_hw_open returned error:%d\n", + __func__, ret); + hid_hw_stop(hdev); + goto hid_hw_open_fail; + } /* Allow incoming packets */ hid_device_io_start(hdev); @@ -3347,7 +3346,7 @@ static int hidpp_probe(struct hid_device *hdev, const struct hid_device_id *id) if (!connected) { ret = -ENODEV; hid_err(hdev, "Device not connected"); - goto hid_hw_open_failed; + goto hid_hw_init_fail; } hidpp_overwrite_name(hdev); @@ -3356,37 +3355,36 @@ static int hidpp_probe(struct hid_device *hdev, const struct hid_device_id *id) if (connected && (hidpp->quirks & HIDPP_QUIRK_CLASS_WTP)) { ret = wtp_get_config(hidpp); if (ret) - goto hid_hw_open_failed; + goto hid_hw_init_fail; } else if (connected && (hidpp->quirks & HIDPP_QUIRK_CLASS_G920)) { ret = g920_get_config(hidpp); if (ret) - goto hid_hw_open_failed; + goto hid_hw_init_fail; } - /* Block incoming packets */ - hid_device_io_stop(hdev); + hidpp_connect_event(hidpp); - if (!(hidpp->quirks & HIDPP_QUIRK_CLASS_G920)) { - ret = hid_hw_start(hdev, connect_mask); - if (ret) { - hid_err(hdev, "%s:hid_hw_start returned error\n", __func__); - goto hid_hw_start_fail; - } - } + /* Reset the HID node state */ + hid_device_io_stop(hdev); + hid_hw_close(hdev); + hid_hw_stop(hdev); - /* Allow incoming packets */ - hid_device_io_start(hdev); + if (hidpp->quirks & HIDPP_QUIRK_NO_HIDINPUT) + connect_mask &= ~HID_CONNECT_HIDINPUT; - hidpp_connect_event(hidpp); + /* Now export the actual inputs and hidraw nodes to the world */ + ret = hid_hw_start(hdev, connect_mask); + if (ret) { + hid_err(hdev, "%s:hid_hw_start returned error\n", __func__); + goto hid_hw_start_fail; + } return ret; -hid_hw_open_failed: - hid_device_io_stop(hdev); - if (hidpp->quirks & HIDPP_QUIRK_CLASS_G920) { - hid_hw_close(hdev); - hid_hw_stop(hdev); - } +hid_hw_init_fail: + hid_hw_close(hdev); +hid_hw_open_fail: + hid_hw_stop(hdev); hid_hw_start_fail: sysfs_remove_group(&hdev->dev.kobj, &ps_attribute_group); cancel_work_sync(&hidpp->work); @@ -3403,10 +3401,9 @@ static void hidpp_remove(struct hid_device *hdev) sysfs_remove_group(&hdev->dev.kobj, &ps_attribute_group); - if (hidpp->quirks & HIDPP_QUIRK_CLASS_G920) { + if (hidpp->quirks & HIDPP_QUIRK_CLASS_G920) hidpp_ff_deinit(hdev); - hid_hw_close(hdev); - } + hid_hw_stop(hdev); cancel_work_sync(&hidpp->work); mutex_destroy(&hidpp->send_mutex); @@ -3470,7 +3467,14 @@ static const struct hid_device_id hidpp_devices[] = { { LDJ_DEVICE(HID_ANY_ID) }, - { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G920_WHEEL), + { /* Logitech G403 Gaming Mouse over USB */ + HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, 0xC082) }, + { /* Logitech G700 Gaming Mouse over USB */ + HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, 0xC06B) }, + { /* Logitech G900 Gaming Mouse over USB */ + HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, 0xC081) }, + { /* Logitech G920 Wheel over USB */ + HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G920_WHEEL), .driver_data = HIDPP_QUIRK_CLASS_G920 | HIDPP_QUIRK_FORCE_OUTPUT_REPORTS}, {} };