55973ff54008f36e6c2381275a1c26e08db25f47
5 * Copyright (c) 1999 Andreas Gal
6 * Copyright (c) 2000-2001 Vojtech Pavlik
7 * Copyright (c) 2006 Jiri Kosina
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2 of the License, or
14 * (at your option) any later version.
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
27 #include <linux/types.h>
28 #include <linux/slab.h>
29 #include <linux/list.h>
30 #include <linux/mutex.h>
31 #include <linux/timer.h>
32 #include <linux/wait.h>
33 #include <linux/workqueue.h>
34 #include <linux/input.h>
36 /* API provided by hid-core.c for USB HID drivers */
37 int usbhid_wait_io(struct hid_device
* hid
);
38 void usbhid_close(struct hid_device
*hid
);
39 int usbhid_open(struct hid_device
*hid
);
40 void usbhid_init_reports(struct hid_device
*hid
);
41 void usbhid_submit_report(struct hid_device
*hid
, struct hid_report
*report
, unsigned char dir
);
44 * USB-specific HID struct, to be pointed to
45 * from struct hid_device->driver_data
48 struct usbhid_device
{
49 struct hid_device
*hid
; /* pointer to corresponding HID dev */
51 struct usb_interface
*intf
; /* USB interface */
52 int ifnum
; /* USB interface number */
54 unsigned int bufsize
; /* URB buffer size */
56 struct urb
*urbin
; /* Input URB */
57 char *inbuf
; /* Input buffer */
58 dma_addr_t inbuf_dma
; /* Input buffer dma */
59 spinlock_t inlock
; /* Input fifo spinlock */
61 struct urb
*urbctrl
; /* Control URB */
62 struct usb_ctrlrequest
*cr
; /* Control request struct */
63 dma_addr_t cr_dma
; /* Control request struct dma */
64 struct hid_control_fifo ctrl
[HID_CONTROL_FIFO_SIZE
]; /* Control fifo */
65 unsigned char ctrlhead
, ctrltail
; /* Control fifo head & tail */
66 char *ctrlbuf
; /* Control buffer */
67 dma_addr_t ctrlbuf_dma
; /* Control buffer dma */
68 spinlock_t ctrllock
; /* Control fifo spinlock */
70 struct urb
*urbout
; /* Output URB */
71 struct hid_output_fifo out
[HID_CONTROL_FIFO_SIZE
]; /* Output pipe fifo */
72 unsigned char outhead
, outtail
; /* Output pipe fifo head & tail */
73 char *outbuf
; /* Output buffer */
74 dma_addr_t outbuf_dma
; /* Output buffer dma */
75 spinlock_t outlock
; /* Output fifo spinlock */
78 unsigned long iofl
; /* I/O flags (CTRL_RUNNING, OUT_RUNNING) */
79 struct timer_list io_retry
; /* Retry timer */
80 unsigned long stop_retry
; /* Time to give up, in jiffies */
81 unsigned int retry_delay
; /* Delay length in ms */
82 struct work_struct reset_work
; /* Task context for resets */
83 wait_queue_head_t wait
; /* For sleeping */
86 #define hid_to_usb_dev(hid_dev) \
87 container_of(hid_dev->dev.parent->parent, struct usb_device, dev)
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