From patchwork Tue Feb 13 12:03:06 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Rodrigo Rivas Costa X-Patchwork-Id: 10215949 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 9FDAF601C2 for ; Tue, 13 Feb 2018 12:03:41 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 8EAAF28DC5 for ; Tue, 13 Feb 2018 12:03:41 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 828CC28DCE; Tue, 13 Feb 2018 12:03:41 +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=-6.8 required=2.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED, DKIM_SIGNED, FREEMAIL_FROM, RCVD_IN_DNSWL_HI, T_DKIM_INVALID 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 4C7C028DC5 for ; Tue, 13 Feb 2018 12:03:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934661AbeBMMDj (ORCPT ); Tue, 13 Feb 2018 07:03:39 -0500 Received: from mail-wm0-f66.google.com ([74.125.82.66]:51634 "EHLO mail-wm0-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S934231AbeBMMDh (ORCPT ); Tue, 13 Feb 2018 07:03:37 -0500 Received: by mail-wm0-f66.google.com with SMTP id r71so15618575wmd.1; Tue, 13 Feb 2018 04:03:36 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id; bh=Ephoca4fJa5xCbPX3YMkV/Oi08ZrZ1ww01IyQbeZfxg=; b=tJ0tyUqf3+kYWfAUoz1olPFLxg+taPYeRfN9nq6UWTSNWYhUB0XmjuxhhzQ8iiuZHW 9yb9YRFqTRcGR7Nt7wzgRzQa3wkM/96ssqTz9RlP5hHIUDJn49KAmRRwQyJ2qCx1rUcS ZnVjgRxGDT+YqD0PVEiX+SyqmRJykcB+ZYp97lnVzjPZyK8i7NSOic9tfjEvMTbsIqp0 oVLZuYWE1PYVuZaJNMHHqC5ppUR6bfAvhgrnsw2FOc1hOtUtCnB2qVjFdfL1w5wXPE7S C/+KUl9BJMl0WhvNmelor4934ytT4j2JCSHaPKbyk7ED72Ied1oRoMUQn5Qh088SNTij tpdA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id; bh=Ephoca4fJa5xCbPX3YMkV/Oi08ZrZ1ww01IyQbeZfxg=; b=Yxl0XbP/MKL0lABQltJ2iJy/ZmehvorQiuwjXFC4mt2WfaHErm0nSuwlMYu4fDVWXI Ge9reScPwph4jvvDCcQNXV3R83jWED11fNeUAXKPFRCLWYqUZ3DuzsTFMv+cQ8odmcDZ cuzzcyuKpN5snV7u7SmM7EPZPy042bxMNoHXLJ4qniKuv5PoDtb0AwRqAGWSYk74pjIB vlm/MGOBXBuN+IKAP55weN3Emboz66nfTCOJFHeg6V+H0LT+IFVFgt0iXyF3yXYWh6Ge EH7TE8DWvpespjPRScCnFdfTqrinb6exDjt9ucqIk1fo8V3/ct8tn2iHaKRRtV9+YgDk ddQA== X-Gm-Message-State: APf1xPAsa0WgAaZT1rSBAu4rQLOn48Hf1dClx17FTIko9xw02lbwzCYq MTX4QxGPenp1hmnCrvmiMMgxFdNXDbw= X-Google-Smtp-Source: AH8x227DMWwLAn7SFw6OP+84PWqKH0rjsNFUWNG93Q81YEP1oxk/DiucTWbogfhHsJmUpG2/4wA90g== X-Received: by 10.28.19.199 with SMTP id 190mr1206621wmt.41.1518523415520; Tue, 13 Feb 2018 04:03:35 -0800 (PST) Received: from localhost.localdomain ([2a01:c50e:5126:7a00:bca6:624f:b432:9029]) by smtp.gmail.com with ESMTPSA id 62sm11641550wrg.81.2018.02.13.04.03.34 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 13 Feb 2018 04:03:34 -0800 (PST) From: Rodrigo Rivas Costa To: Jiri Kosina , Benjamin Tissoires , linux-kernel@vger.kernel.org, linux-input@vger.kernel.org Cc: Rodrigo Rivas Costa Subject: [PATCH 1/3] HID: add driver for Valve Steam Controller Date: Tue, 13 Feb 2018 13:03:06 +0100 Message-Id: <20180213120308.23879-1-rodrigorivascosta@gmail.com> X-Mailer: git-send-email 2.16.1 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 There are two ways to connect the Steam Controller: directly to the USB or with the USB wireless adapter. Both methods are similar, but the wireless adapter can connect up to 4 devices at the same time. The wired device will appear as 3 interfaces: a virtual mouse, a virtual keyboard and a custom HID device. The wireless device will appear as 5 interfaces: a virtual keyboard and 4 custom HID devices, that will remain silent until a device is actually connected. The custom HID device has a report descriptor with all vendor specific usages, so the hid-generic is not very useful. In a PC/SteamBox Valve Steam Client provices a software translation by using direct USB access and a creates a uinput virtual gamepad. This driver was reverse engineered to provide direct kernel support in case you cannot, or do not want to, use Valve Steam Client. It disables the virtual keyboard and mouse, as they are not so useful when you have a working gamepad. Working: buttons, axes, pads, wireless connect/disconnect. TO-DO: Battery, force-feedback, accelerometer/gyro, led, beeper... Signed-off-by: Rodrigo Rivas Costa --- drivers/hid/Kconfig | 8 + drivers/hid/Makefile | 1 + drivers/hid/hid-ids.h | 4 + drivers/hid/hid-quirks.c | 4 + drivers/hid/hid-steam.c | 480 +++++++++++++++++++++++++++++++++++++++++++++++ 5 files changed, 497 insertions(+) create mode 100644 drivers/hid/hid-steam.c diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig index 19c499f5623d..6e80fbf04e03 100644 --- a/drivers/hid/Kconfig +++ b/drivers/hid/Kconfig @@ -823,6 +823,14 @@ config HID_SPEEDLINK ---help--- Support for Speedlink Vicious and Divine Cezanne mouse. +config HID_STEAM + tristate "Steam Controller support" + depends on HID + ---help--- + Say Y here if you have a Steam Controller if you want to use it + without running the Steam Client. It supports both the wired and + the wireless adaptor. + config HID_STEELSERIES tristate "Steelseries SRW-S1 steering wheel support" depends on HID diff --git a/drivers/hid/Makefile b/drivers/hid/Makefile index eb13b9e92d85..60a8abf84682 100644 --- a/drivers/hid/Makefile +++ b/drivers/hid/Makefile @@ -95,6 +95,7 @@ obj-$(CONFIG_HID_SAMSUNG) += hid-samsung.o obj-$(CONFIG_HID_SMARTJOYPLUS) += hid-sjoy.o obj-$(CONFIG_HID_SONY) += hid-sony.o obj-$(CONFIG_HID_SPEEDLINK) += hid-speedlink.o +obj-$(CONFIG_HID_STEAM) += hid-steam.o obj-$(CONFIG_HID_STEELSERIES) += hid-steelseries.o obj-$(CONFIG_HID_SUNPLUS) += hid-sunplus.o obj-$(CONFIG_HID_GREENASIA) += hid-gaff.o diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h index 43ddcdfbd0da..be31a3c20818 100644 --- a/drivers/hid/hid-ids.h +++ b/drivers/hid/hid-ids.h @@ -988,6 +988,10 @@ #define USB_VENDOR_ID_STANTUM_SITRONIX 0x1403 #define USB_DEVICE_ID_MTP_SITRONIX 0x5001 +#define USB_VENDOR_ID_VALVE 0x28de +#define USB_DEVICE_ID_STEAM_CONTROLLER 0x1102 +#define USB_DEVICE_ID_STEAM_CONTROLLER_WIRELESS 0x1142 + #define USB_VENDOR_ID_STEELSERIES 0x1038 #define USB_DEVICE_ID_STEELSERIES_SRWS1 0x1410 diff --git a/drivers/hid/hid-quirks.c b/drivers/hid/hid-quirks.c index 5f6035a5ce36..72ac972dc00b 100644 --- a/drivers/hid/hid-quirks.c +++ b/drivers/hid/hid-quirks.c @@ -629,6 +629,10 @@ static const struct hid_device_id hid_have_special_driver[] = { #if IS_ENABLED(CONFIG_HID_SPEEDLINK) { HID_USB_DEVICE(USB_VENDOR_ID_X_TENSIONS, USB_DEVICE_ID_SPEEDLINK_VAD_CEZANNE) }, #endif +#if IS_ENABLED(CONFIG_HID_STEAM) + { HID_USB_DEVICE(USB_VENDOR_ID_VALVE, USB_DEVICE_ID_STEAM_CONTROLLER) }, + { HID_USB_DEVICE(USB_VENDOR_ID_VALVE, USB_DEVICE_ID_STEAM_CONTROLLER_WIRELESS) }, +#endif #if IS_ENABLED(CONFIG_HID_STEELSERIES) { HID_USB_DEVICE(USB_VENDOR_ID_STEELSERIES, USB_DEVICE_ID_STEELSERIES_SRWS1) }, #endif diff --git a/drivers/hid/hid-steam.c b/drivers/hid/hid-steam.c new file mode 100644 index 000000000000..03f912ab5484 --- /dev/null +++ b/drivers/hid/hid-steam.c @@ -0,0 +1,480 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * HID driver for Valve Steam Controller + * + * Supports both the wired and wireless interfaces. + * + * Copyright (c) 2018 Rodrigo Rivas Costa + */ + +/* + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the Free + * Software Foundation; either version 2 of the License, or (at your option) + * any later version. + */ + +#include +#include +#include +#include +#include +#include +#include "hid-ids.h" + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Rodrigo Rivas Costa "); + +#define STEAM_QUIRK_WIRELESS BIT(0) + +struct steam_device { + spinlock_t lock; + struct hid_device *hid_dev; + struct input_dev *input_dev; + unsigned long quirks; + struct work_struct work_connect; + bool connected; +}; + +static int steam_register(struct steam_device *steam); +static void steam_unregister(struct steam_device *steam); +static void steam_do_connect_event(struct steam_device *steam, bool connected); +static void steam_do_input_event(struct steam_device *steam, u8 *data); + +static int steam_input_open(struct input_dev *dev) +{ + struct steam_device *steam = input_get_drvdata(dev); + + return hid_hw_open(steam->hid_dev); +} + +static void steam_input_close(struct input_dev *dev) +{ + struct steam_device *steam = input_get_drvdata(dev); + + hid_hw_close(steam->hid_dev); +} + +static void steam_work_connect_cb(struct work_struct *work) +{ + struct steam_device *steam = container_of(work, struct steam_device, + work_connect); + unsigned long flags; + bool connected; + int ret; + + dbg_hid("%s\n", __func__); + + spin_lock_irqsave(&steam->lock, flags); + connected = steam->connected; + spin_unlock_irqrestore(&steam->lock, flags); + + if (connected) { + if (steam->input_dev) { + dbg_hid("%s: already connected\n", __func__); + return; + } + ret = steam_register(steam); + if (ret) { + hid_err(steam->hid_dev, + "%s:steam_register returned error %d\n", + __func__, ret); + return; + } + } else { + steam_unregister(steam); + } +} + +static int steam_probe(struct hid_device *hdev, + const struct hid_device_id *id) +{ + struct usb_interface *intf = to_usb_interface(hdev->dev.parent); + struct steam_device *steam; + int ret; + + dbg_hid("%s called for ifnum %d protocol %d\n", __func__, + intf->cur_altsetting->desc.bInterfaceNumber, + intf->cur_altsetting->desc.bInterfaceProtocol + ); + + /* + * The wired device creates 3 interfaces: + * 0: emulated mouse. + * 1: emulated keyboard. + * 2: the real game pad. + * The wireless device creates 5 interfaces: + * 0: emulated keyboard. + * 1-4: slots where up to 4 real game pads will be connected to. + * Instead of the interface index we use the protocol, it is 0 + * for the real game pad. + * Since we have a real game pad now, we can ignore the virtual + * mouse and keyboard. + */ + if (intf->cur_altsetting->desc.bInterfaceProtocol != 0) { + dbg_hid("%s: interface ignored\n", __func__); + return -ENODEV; + } + + steam = kzalloc(sizeof(struct steam_device), GFP_KERNEL); + if (!steam) + return -ENOMEM; + + spin_lock_init(&steam->lock); + steam->hid_dev = hdev; + hid_set_drvdata(hdev, steam); + steam->quirks = id->driver_data; + INIT_WORK(&steam->work_connect, steam_work_connect_cb); + + ret = hid_parse(hdev); + if (ret) { + hid_err(hdev, + "%s:parse of hid interface failed\n", __func__); + goto hid_parse_fail; + } + ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT); + if (ret) { + hid_err(hdev, + "%s:hid_hw_start returned error\n", __func__); + goto hid_hw_start_fail; + } + + if (steam->quirks & STEAM_QUIRK_WIRELESS) { + steam->input_dev = NULL; + ret = hid_hw_open(hdev); + if (ret) { + hid_err(hdev, + "%s:hid_hw_open for wireless\n", + __func__); + goto hid_hw_open_fail; + } + hid_info(hdev, "Steam wireless receiver connected"); + } else { + ret = steam_register(steam); + if (ret) { + hid_err(hdev, + "%s:steam_register returned error\n", + __func__); + goto input_register_fail; + } + } + + return 0; + +input_register_fail: +hid_hw_open_fail: + hid_hw_stop(hdev); +hid_hw_start_fail: +hid_parse_fail: + cancel_work_sync(&steam->work_connect); + kfree(steam); + hid_set_drvdata(hdev, NULL); + return ret; +} + +static void steam_remove(struct hid_device *hdev) +{ + struct steam_device *steam = hid_get_drvdata(hdev); + + dbg_hid("%s\n", __func__); + + if (steam->quirks & STEAM_QUIRK_WIRELESS) { + hid_info(hdev, "Steam wireless receiver disconnected"); + hid_hw_close(hdev); + } + hid_hw_stop(hdev); + steam_unregister(steam); + cancel_work_sync(&steam->work_connect); + kfree(steam); + hid_set_drvdata(hdev, NULL); +} + +static int steam_raw_event(struct hid_device *hdev, + struct hid_report *report, u8 *data, + int size) +{ + struct steam_device *steam = hid_get_drvdata(hdev); + + /* + * All messages are size=64, all values little-endian. + * The format is: + * Offset| Meaning + * -------+-------------------------------------------- + * 0-1 | always 0x01, 0x00, maybe protocol version? + * 2 | type of message + * 3 | length of the real payload (not checked) + * 4-n | payload data, depends on the type + * + * There are these known types of message: + * 0x01: input data (60 bytes) + * 0x03: wireless connect/disconnect (1 byte) + * 0x04: battery status (11 bytes) + */ + + if (size != 64 || data[0] != 1 || data[1] != 0) + return 0; + + switch (data[2]) { + case 0x01: + steam_do_input_event(steam, data); + break; + case 0x03: + /* + * The payload of this event is a single byte: + * 0x01: disconnected. + * 0x02: connected. + */ + switch (data[4]) { + case 0x01: + steam_do_connect_event(steam, false); + break; + case 0x02: + steam_do_connect_event(steam, true); + break; + } + break; + case 0x04: + /* TODO battery status */ + break; + } + return 0; +} + +static void steam_do_connect_event(struct steam_device *steam, bool connected) +{ + unsigned long flags; + + spin_lock_irqsave(&steam->lock, flags); + steam->connected = connected; + spin_unlock_irqrestore(&steam->lock, flags); + + if (schedule_work(&steam->work_connect) == 0) + dbg_hid("%s: connected=%d event already queued\n", + __func__, connected); +} + +/* The size for this message payload is 60. + * The known values are: + * (* values are not sent through wireless) + * (* accelerator/gyro is disabled by default) + * Offset| Type | Mapped to |Meaning + * -------+-------+-----------+-------------------------- + * 4-7 | u32 | -- | sequence number + * 8-10 | 24bit | see below | buttons + * 11 | u8 | ABS_Z | left trigger + * 12 | u8 | ABS_RZ | right trigger + * 13-15 | -- | -- | always 0 + * 16-17 | s16 | ABS_X | X value + * 18-19 | s16 | ABS_Y | Y value + * 20-21 | s16 | ABS_RX | right-pad X value + * 22-23 | s16 | ABS_RY | right-pad Y value + * 24-25 | s16 | -- | * left trigger + * 26-27 | s16 | -- | * right trigger + * 28-29 | s16 | -- | * accelerometer X value + * 30-31 | s16 | -- | * accelerometer Y value + * 32-33 | s16 | -- | * accelerometer Z value + * 34-35 | s16 | -- | gyro X value + * 36-36 | s16 | -- | gyro Y value + * 38-39 | s16 | -- | gyro Z value + * 40-41 | s16 | -- | quaternion W value + * 42-43 | s16 | -- | quaternion X value + * 44-45 | s16 | -- | quaternion Y value + * 46-47 | s16 | -- | quaternion Z value + * 48-49 | -- | -- | always 0 + * 50-51 | s16 | -- | * left trigger (uncalibrated) + * 52-53 | s16 | -- | * right trigger (uncalibrated) + * 54-55 | s16 | -- | * joystick X value (uncalibrated) + * 56-57 | s16 | -- | * joystick Y value (uncalibrated) + * 58-59 | s16 | -- | * left-pad X value + * 60-61 | s16 | -- | * left-pad Y value + * 62-63 | u16 | -- | * battery voltage + * + * The buttons are: + * Bit | Mapped to | Description + * ------+------------+-------------------------------- + * 8.0 | BTN_TR2 | right trigger fully pressed + * 8.1 | BTN_TL2 | left trigger fully pressed + * 8.2 | BTN_TR | right shoulder + * 8.3 | BTN_TL | left shoulder + * 8.4 | BTN_Y | button Y + * 8.5 | BTN_B | button B + * 8.6 | BTN_X | button X + * 8.7 | BTN_A | button A + * 9.0 | -ABS_HAT0Y | lef-pad up + * 9.1 | +ABS_HAT0X | lef-pad right + * 9.2 | -ABS_HAT0X | lef-pad left + * 9.3 | +ABS_HAT0Y | lef-pad down + * 9.4 | BTN_SELECT | menu left + * 9.5 | BTN_MODE | steam logo + * 9.6 | BTN_START | menu right + * 9.7 | BTN_GEAR_DOWN | left back lever + * 10.0 | BTN_GEAR_UP | right back lever + * 10.1 | -- | left-pad clicked + * 10.2 | BTN_THUMBR | right-pad clicked + * 10.3 | -- | left-pad touched + * 10.4 | -- | right-pad touched + * 10.5 | -- | unknown + * 10.6 | BTN_THUMBL | joystick clicked + * 10.7 | -- | lpad_and_joy + */ + +static void steam_do_input_event(struct steam_device *steam, u8 *data) +{ + struct input_dev *input = steam->input_dev; + + /* 24 bits of buttons */ + u8 b8, b9, b10; + + /* + * If we get input events from the wireless without a 'connected' + * event, just connect it now. + * This can happen, for example, if we bind the HID device with + * the controller already paired. + */ + if (unlikely(!input)) { + dbg_hid("%s: input data without connect event\n", __func__); + steam_do_connect_event(steam, true); + return; + } + + input_report_abs(input, ABS_Z, data[11]); + input_report_abs(input, ABS_RZ, data[12]); + + input_report_abs(input, ABS_X, + (s16) le16_to_cpup((__le16 *)(data + 16))); + input_report_abs(input, ABS_Y, + -(s16) le16_to_cpup((__le16 *)(data + 18))); + input_report_abs(input, ABS_RX, + (s16) le16_to_cpup((__le16 *)(data + 20))); + input_report_abs(input, ABS_RY, + -(s16) le16_to_cpup((__le16 *)(data + 22))); + + b8 = data[8]; + b9 = data[9]; + b10 = data[10]; + + input_event(input, EV_KEY, BTN_TR2, !!(b8 & 0x01)); + input_event(input, EV_KEY, BTN_TL2, !!(b8 & 0x02)); + input_event(input, EV_KEY, BTN_TR, !!(b8 & 0x04)); + input_event(input, EV_KEY, BTN_TL, !!(b8 & 0x08)); + input_event(input, EV_KEY, BTN_Y, !!(b8 & 0x10)); + input_event(input, EV_KEY, BTN_B, !!(b8 & 0x20)); + input_event(input, EV_KEY, BTN_X, !!(b8 & 0x40)); + input_event(input, EV_KEY, BTN_A, !!(b8 & 0x80)); + input_event(input, EV_KEY, BTN_SELECT, !!(b9 & 0x10)); + input_event(input, EV_KEY, BTN_MODE, !!(b9 & 0x20)); + input_event(input, EV_KEY, BTN_START, !!(b9 & 0x40)); + input_event(input, EV_KEY, BTN_GEAR_DOWN, !!(b9 & 0x80)); + input_event(input, EV_KEY, BTN_GEAR_UP, !!(b10 & 0x01)); + input_event(input, EV_KEY, BTN_THUMBR, !!(b10 & 0x04)); + input_event(input, EV_KEY, BTN_THUMBL, !!(b10 & 0x40)); + + input_report_abs(input, ABS_HAT0X, + !!(b9 & 0x02) - !!(b9 & 0x04)); + input_report_abs(input, ABS_HAT0Y, + !!(b9 & 0x08) - !!(b9 & 0x01)); + + input_sync(input); +} + +static int steam_register(struct steam_device *steam) +{ + struct hid_device *hdev = steam->hid_dev; + struct input_dev *input; + int ret; + + dbg_hid("%s\n", __func__); + + hid_info(hdev, "Steam Controller connected"); + + input = input_allocate_device(); + if (!input) + return -ENOMEM; + + input_set_drvdata(input, steam); + input->dev.parent = &hdev->dev; + input->open = steam_input_open; + input->close = steam_input_close; + + input->name = "Steam Controller"; + input->phys = hdev->phys; + input->uniq = hdev->uniq; + input->id.bustype = hdev->bus; + input->id.vendor = hdev->vendor; + input->id.product = hdev->product; + input->id.version = hdev->version; + + input_set_capability(input, EV_KEY, BTN_TR2); + input_set_capability(input, EV_KEY, BTN_TL2); + input_set_capability(input, EV_KEY, BTN_TR); + input_set_capability(input, EV_KEY, BTN_TL); + input_set_capability(input, EV_KEY, BTN_Y); + input_set_capability(input, EV_KEY, BTN_B); + input_set_capability(input, EV_KEY, BTN_X); + input_set_capability(input, EV_KEY, BTN_A); + input_set_capability(input, EV_KEY, BTN_SELECT); + input_set_capability(input, EV_KEY, BTN_MODE); + input_set_capability(input, EV_KEY, BTN_START); + input_set_capability(input, EV_KEY, BTN_GEAR_DOWN); + input_set_capability(input, EV_KEY, BTN_GEAR_UP); + input_set_capability(input, EV_KEY, BTN_THUMBR); + input_set_capability(input, EV_KEY, BTN_THUMBL); + + input_set_abs_params(input, ABS_Z, 0, 255, 0, 0); + input_set_abs_params(input, ABS_RZ, 0, 255, 0, 0); + input_set_abs_params(input, ABS_X, -32767, 32767, 0, 0); + input_set_abs_params(input, ABS_Y, -32767, 32767, 0, 0); + input_set_abs_params(input, ABS_RX, -32767, 32767, 0, 0); + input_set_abs_params(input, ABS_RY, -32767, 32767, 0, 0); + input_set_abs_params(input, ABS_HAT0X, -1, 1, 0, 0); + input_set_abs_params(input, ABS_HAT0Y, -1, 1, 0, 0); + + ret = input_register_device(input); + if (ret) + goto input_register_fail; + + steam->input_dev = input; + + return 0; + +input_register_fail: + input_free_device(input); + return ret; +} + +static void steam_unregister(struct steam_device *steam) +{ + dbg_hid("%s\n", __func__); + + if (steam->input_dev) { + hid_info(steam->hid_dev, "Steam Controller disconnected"); + input_unregister_device(steam->input_dev); + steam->input_dev = NULL; + } +} + +static const struct hid_device_id steam_controllers[] = { + { /* Wired Steam Controller */ + HID_USB_DEVICE(USB_VENDOR_ID_VALVE, + USB_DEVICE_ID_STEAM_CONTROLLER) + }, + { /* Wireless Steam Controller */ + HID_USB_DEVICE(USB_VENDOR_ID_VALVE, + USB_DEVICE_ID_STEAM_CONTROLLER_WIRELESS), + .driver_data = STEAM_QUIRK_WIRELESS + }, + {} +}; + +MODULE_DEVICE_TABLE(hid, steam_controllers); + +static struct hid_driver steam_controller_driver = { + .name = "hid-steam", + .id_table = steam_controllers, + .probe = steam_probe, + .remove = steam_remove, + .raw_event = steam_raw_event, +}; + +module_hid_driver(steam_controller_driver); +/* vi: set softtabstop=8 shiftwidth=8 noexpandtab tabstop=8: */