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Based on 1 normalized pattern(s): 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 this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not write to the free software foundation inc 59 temple place suite 330 boston ma 02111 1307 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 1334 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Richard Fontana <rfontana@redhat.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070033.113240726@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
97 lines
3.6 KiB
C
97 lines
3.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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#ifndef __USBHID_H
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#define __USBHID_H
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/*
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* Copyright (c) 1999 Andreas Gal
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* Copyright (c) 2000-2001 Vojtech Pavlik
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* Copyright (c) 2006 Jiri Kosina
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*/
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/*
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*/
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#include <linux/types.h>
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#include <linux/slab.h>
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#include <linux/list.h>
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#include <linux/mutex.h>
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#include <linux/timer.h>
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#include <linux/wait.h>
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#include <linux/workqueue.h>
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#include <linux/input.h>
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/* API provided by hid-core.c for USB HID drivers */
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void usbhid_init_reports(struct hid_device *hid);
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struct usb_interface *usbhid_find_interface(int minor);
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/* iofl flags */
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#define HID_CTRL_RUNNING 1
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#define HID_OUT_RUNNING 2
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#define HID_IN_RUNNING 3
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#define HID_RESET_PENDING 4
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#define HID_SUSPENDED 5
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#define HID_CLEAR_HALT 6
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#define HID_DISCONNECTED 7
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#define HID_STARTED 8
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#define HID_KEYS_PRESSED 10
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#define HID_NO_BANDWIDTH 11
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#define HID_RESUME_RUNNING 12
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/*
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* The device is opened, meaning there is a client that is interested
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* in data coming from the device.
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*/
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#define HID_OPENED 13
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/*
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* We are polling input endpoint by [re]submitting IN URB, because
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* either HID device is opened or ALWAYS POLL quirk is set for the
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* device.
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*/
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#define HID_IN_POLLING 14
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/*
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* USB-specific HID struct, to be pointed to
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* from struct hid_device->driver_data
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*/
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struct usbhid_device {
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struct hid_device *hid; /* pointer to corresponding HID dev */
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struct usb_interface *intf; /* USB interface */
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int ifnum; /* USB interface number */
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unsigned int bufsize; /* URB buffer size */
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struct urb *urbin; /* Input URB */
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char *inbuf; /* Input buffer */
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dma_addr_t inbuf_dma; /* Input buffer dma */
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struct urb *urbctrl; /* Control URB */
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struct usb_ctrlrequest *cr; /* Control request struct */
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struct hid_control_fifo ctrl[HID_CONTROL_FIFO_SIZE]; /* Control fifo */
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unsigned char ctrlhead, ctrltail; /* Control fifo head & tail */
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char *ctrlbuf; /* Control buffer */
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dma_addr_t ctrlbuf_dma; /* Control buffer dma */
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unsigned long last_ctrl; /* record of last output for timeouts */
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struct urb *urbout; /* Output URB */
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struct hid_output_fifo out[HID_CONTROL_FIFO_SIZE]; /* Output pipe fifo */
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unsigned char outhead, outtail; /* Output pipe fifo head & tail */
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char *outbuf; /* Output buffer */
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dma_addr_t outbuf_dma; /* Output buffer dma */
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unsigned long last_out; /* record of last output for timeouts */
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spinlock_t lock; /* fifo spinlock */
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unsigned long iofl; /* I/O flags (CTRL_RUNNING, OUT_RUNNING) */
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struct timer_list io_retry; /* Retry timer */
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unsigned long stop_retry; /* Time to give up, in jiffies */
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unsigned int retry_delay; /* Delay length in ms */
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struct work_struct reset_work; /* Task context for resets */
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wait_queue_head_t wait; /* For sleeping */
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};
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#define hid_to_usb_dev(hid_dev) \
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to_usb_device(hid_dev->dev.parent->parent)
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#endif
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