From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753979AbbKGQLK (ORCPT ); Sat, 7 Nov 2015 11:11:10 -0500 Received: from host18.canaca.com ([66.49.204.205]:58574 "EHLO host18.canaca.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753910AbbKGQKZ (ORCPT ); Sat, 7 Nov 2015 11:10:25 -0500 From: Simon Wood To: linux-input@vger.kernel.org Cc: linux-kernel@vger.kernel.org, Jiri Kosina , Edwin , =?UTF-8?q?Michal=20Mal=C3=BD?= , elias vanderstuyft , Benjamin Tissoires , Simon Wood Subject: [PATCH 3/6] HID: hid-logitech-hidpp: Add basic support for Logitech G920 Date: Sat, 7 Nov 2015 09:10:06 -0700 Message-Id: <1446912609-2573-4-git-send-email-simon@mungewell.org> X-Mailer: git-send-email 2.1.4 In-Reply-To: <1446912609-2573-1-git-send-email-simon@mungewell.org> References: <1446912609-2573-1-git-send-email-simon@mungewell.org> X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - host18.canaca.com X-AntiAbuse: Original Domain - vger.kernel.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - mungewell.org X-Get-Message-Sender-Via: host18.canaca.com: authenticated_id: gitsend@mungewell.org X-Authenticated-Sender: host18.canaca.com: gitsend@mungewell.org X-Source: X-Source-Args: X-Source-Dir: Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patch adds basic support for the Logitech G920 wheel when in HID mode. This wheel 'speaks' the HID++ protocol, and therefor is driven with hid-logitech-hidpp. At this stage the driver only shows that it can communicate with the wheel by outputting the name discovered over HID++. The normal HID functions work to give input functionality using joystick/event interface. Signed-off-by: Simon Wood --- drivers/hid/hid-core.c | 1 + drivers/hid/hid-ids.h | 1 + drivers/hid/hid-logitech-hidpp.c | 69 +++++++++++++++++++++++++++++++--------- 3 files changed, 56 insertions(+), 15 deletions(-) diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c index bcd914a..60d564d 100644 --- a/drivers/hid/hid-core.c +++ b/drivers/hid/hid-core.c @@ -1896,6 +1896,7 @@ static const struct hid_device_id hid_have_special_driver[] = { { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD_CORD) }, { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD) }, { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2_2) }, + { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G920_WHEEL) }, { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_F3D) }, { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_FFG ) }, { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_FORCE3D_PRO) }, diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h index f769208..d3500c4 100644 --- a/drivers/hid/hid-ids.h +++ b/drivers/hid/hid-ids.h @@ -614,6 +614,7 @@ #define USB_DEVICE_ID_LOGITECH_RUMBLEPAD2 0xc218 #define USB_DEVICE_ID_LOGITECH_RUMBLEPAD2_2 0xc219 #define USB_DEVICE_ID_LOGITECH_G29_WHEEL 0xc24f +#define USB_DEVICE_ID_LOGITECH_G920_WHEEL 0xc262 #define USB_DEVICE_ID_LOGITECH_WINGMAN_F3D 0xc283 #define USB_DEVICE_ID_LOGITECH_FORCE3D_PRO 0xc286 #define USB_DEVICE_ID_LOGITECH_FLIGHT_SYSTEM_G940 0xc287 diff --git a/drivers/hid/hid-logitech-hidpp.c b/drivers/hid/hid-logitech-hidpp.c index 08e65e8..dbb9ff3 100644 --- a/drivers/hid/hid-logitech-hidpp.c +++ b/drivers/hid/hid-logitech-hidpp.c @@ -49,11 +49,13 @@ MODULE_PARM_DESC(disable_tap_to_click, #define HIDPP_QUIRK_CLASS_WTP BIT(0) #define HIDPP_QUIRK_CLASS_M560 BIT(1) #define HIDPP_QUIRK_CLASS_K400 BIT(2) +#define HIDPP_QUIRK_CLASS_G920 BIT(3) /* bits 2..20 are reserved for classes */ #define HIDPP_QUIRK_CONNECT_EVENTS BIT(21) #define HIDPP_QUIRK_WTP_PHYSICAL_BUTTONS BIT(22) #define HIDPP_QUIRK_NO_HIDINPUT BIT(23) +#define HIDPP_QUIRK_FORCE_OUTPUT_REPORTS BIT(24) #define HIDPP_QUIRK_DELAYED_INIT (HIDPP_QUIRK_NO_HIDINPUT | \ HIDPP_QUIRK_CONNECT_EVENTS) @@ -146,8 +148,11 @@ static void hidpp_connect_event(struct hidpp_device *hidpp_dev); static int __hidpp_send_report(struct hid_device *hdev, struct hidpp_report *hidpp_report) { + struct hidpp_device *hidpp = hid_get_drvdata(hdev); int fields_count, ret; + hidpp = hid_get_drvdata(hdev); + switch (hidpp_report->report_id) { case REPORT_ID_HIDPP_SHORT: fields_count = HIDPP_REPORT_SHORT_LENGTH; @@ -168,9 +173,13 @@ static int __hidpp_send_report(struct hid_device *hdev, */ hidpp_report->device_index = 0xff; - ret = hid_hw_raw_request(hdev, hidpp_report->report_id, - (u8 *)hidpp_report, fields_count, HID_OUTPUT_REPORT, - HID_REQ_SET_REPORT); + if (hidpp->quirks & HIDPP_QUIRK_FORCE_OUTPUT_REPORTS) { + ret = hid_hw_output_report(hdev, (u8 *)hidpp_report, fields_count); + } else { + ret = hid_hw_raw_request(hdev, hidpp_report->report_id, + (u8 *)hidpp_report, fields_count, HID_OUTPUT_REPORT, + HID_REQ_SET_REPORT); + } return ret == fields_count ? 0 : -1; } @@ -1430,8 +1439,10 @@ static void hidpp_overwrite_name(struct hid_device *hdev, bool use_unifying) if (!name) hid_err(hdev, "unable to retrieve the name of the device"); - else + else { + dbg_hid("HID++: Got name: %s\n", name); snprintf(hdev->name, sizeof(hdev->name), "%s", name); + } kfree(name); } @@ -1594,6 +1605,25 @@ static int hidpp_probe(struct hid_device *hdev, const struct hid_device_id *id) goto hid_parse_fail; } + if (hidpp->quirks & HIDPP_QUIRK_DELAYED_INIT) + 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; + } + } + + /* Allow incoming packets */ hid_device_io_start(hdev); @@ -1602,8 +1632,7 @@ static int hidpp_probe(struct hid_device *hdev, const struct hid_device_id *id) if (!connected) { ret = -ENODEV; hid_err(hdev, "Device not connected"); - hid_device_io_stop(hdev); - goto hid_parse_fail; + goto hid_hw_open_failed; } hid_info(hdev, "HID++ %u.%u device connected.\n", @@ -1616,19 +1645,18 @@ 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_parse_fail; + goto hid_hw_open_failed; } /* Block incoming packets */ hid_device_io_stop(hdev); - if (hidpp->quirks & HIDPP_QUIRK_NO_HIDINPUT) - connect_mask &= ~HID_CONNECT_HIDINPUT; - - 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; + 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; + } } if (hidpp->quirks & HIDPP_QUIRK_CONNECT_EVENTS) { @@ -1640,6 +1668,12 @@ static int hidpp_probe(struct hid_device *hdev, const struct hid_device_id *id) 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_start_fail: hid_parse_fail: cancel_work_sync(&hidpp->work); @@ -1653,9 +1687,11 @@ static void hidpp_remove(struct hid_device *hdev) { struct hidpp_device *hidpp = hid_get_drvdata(hdev); + if (hidpp->quirks & HIDPP_QUIRK_CLASS_G920) + hid_hw_close(hdev); + hid_hw_stop(hdev); cancel_work_sync(&hidpp->work); mutex_destroy(&hidpp->send_mutex); - hid_hw_stop(hdev); } static const struct hid_device_id hidpp_devices[] = { @@ -1683,6 +1719,9 @@ static const struct hid_device_id hidpp_devices[] = { { HID_DEVICE(BUS_USB, HID_GROUP_LOGITECH_DJ_DEVICE, USB_VENDOR_ID_LOGITECH, HID_ANY_ID)}, + + { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G920_WHEEL), + .driver_data = HIDPP_QUIRK_CLASS_G920 | HIDPP_QUIRK_FORCE_OUTPUT_REPORTS}, {} }; -- 2.1.4