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4916b3a5 JK |
1 | #ifndef __USBHID_H |
2 | #define __USBHID_H | |
3 | ||
4 | /* | |
5 | * Copyright (c) 1999 Andreas Gal | |
6 | * Copyright (c) 2000-2001 Vojtech Pavlik | |
7 | * Copyright (c) 2006 Jiri Kosina | |
8 | */ | |
9 | ||
10 | /* | |
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. | |
15 | * | |
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. | |
20 | * | |
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 | |
24 | * | |
25 | */ | |
26 | ||
27 | #include <linux/types.h> | |
28 | #include <linux/slab.h> | |
29 | #include <linux/list.h> | |
3d5afd32 | 30 | #include <linux/mutex.h> |
4916b3a5 | 31 | #include <linux/timer.h> |
1d1bdd20 | 32 | #include <linux/wait.h> |
4916b3a5 JK |
33 | #include <linux/workqueue.h> |
34 | #include <linux/input.h> | |
35 | ||
36 | /* API provided by hid-core.c for USB HID drivers */ | |
4916b3a5 JK |
37 | void usbhid_close(struct hid_device *hid); |
38 | int usbhid_open(struct hid_device *hid); | |
39 | void usbhid_init_reports(struct hid_device *hid); | |
0361a28d ON |
40 | int usbhid_get_power(struct hid_device *hid); |
41 | void usbhid_put_power(struct hid_device *hid); | |
8fe294ca | 42 | struct usb_interface *usbhid_find_interface(int minor); |
4916b3a5 | 43 | |
0ed94b33 JS |
44 | /* iofl flags */ |
45 | #define HID_CTRL_RUNNING 1 | |
46 | #define HID_OUT_RUNNING 2 | |
47 | #define HID_IN_RUNNING 3 | |
48 | #define HID_RESET_PENDING 4 | |
49 | #define HID_SUSPENDED 5 | |
50 | #define HID_CLEAR_HALT 6 | |
51 | #define HID_DISCONNECTED 7 | |
52 | #define HID_STARTED 8 | |
0361a28d | 53 | #define HID_KEYS_PRESSED 10 |
a8c52b66 | 54 | #define HID_NO_BANDWIDTH 11 |
b905811a | 55 | #define HID_RESUME_RUNNING 12 |
0ed94b33 | 56 | |
4916b3a5 JK |
57 | /* |
58 | * USB-specific HID struct, to be pointed to | |
59 | * from struct hid_device->driver_data | |
60 | */ | |
61 | ||
62 | struct usbhid_device { | |
63 | struct hid_device *hid; /* pointer to corresponding HID dev */ | |
64 | ||
65 | struct usb_interface *intf; /* USB interface */ | |
66 | int ifnum; /* USB interface number */ | |
67 | ||
68 | unsigned int bufsize; /* URB buffer size */ | |
69 | ||
70 | struct urb *urbin; /* Input URB */ | |
71 | char *inbuf; /* Input buffer */ | |
72 | dma_addr_t inbuf_dma; /* Input buffer dma */ | |
4916b3a5 JK |
73 | |
74 | struct urb *urbctrl; /* Control URB */ | |
75 | struct usb_ctrlrequest *cr; /* Control request struct */ | |
4916b3a5 JK |
76 | struct hid_control_fifo ctrl[HID_CONTROL_FIFO_SIZE]; /* Control fifo */ |
77 | unsigned char ctrlhead, ctrltail; /* Control fifo head & tail */ | |
78 | char *ctrlbuf; /* Control buffer */ | |
79 | dma_addr_t ctrlbuf_dma; /* Control buffer dma */ | |
858155fb | 80 | unsigned long last_ctrl; /* record of last output for timeouts */ |
4916b3a5 JK |
81 | |
82 | struct urb *urbout; /* Output URB */ | |
f129ea6d | 83 | struct hid_output_fifo out[HID_CONTROL_FIFO_SIZE]; /* Output pipe fifo */ |
4916b3a5 JK |
84 | unsigned char outhead, outtail; /* Output pipe fifo head & tail */ |
85 | char *outbuf; /* Output buffer */ | |
86 | dma_addr_t outbuf_dma; /* Output buffer dma */ | |
858155fb | 87 | unsigned long last_out; /* record of last output for timeouts */ |
4916b3a5 | 88 | |
0361a28d | 89 | spinlock_t lock; /* fifo spinlock */ |
4916b3a5 JK |
90 | unsigned long iofl; /* I/O flags (CTRL_RUNNING, OUT_RUNNING) */ |
91 | struct timer_list io_retry; /* Retry timer */ | |
92 | unsigned long stop_retry; /* Time to give up, in jiffies */ | |
93 | unsigned int retry_delay; /* Delay length in ms */ | |
94 | struct work_struct reset_work; /* Task context for resets */ | |
1d1bdd20 | 95 | wait_queue_head_t wait; /* For sleeping */ |
4916b3a5 JK |
96 | }; |
97 | ||
be820975 | 98 | #define hid_to_usb_dev(hid_dev) \ |
7775fb92 | 99 | to_usb_device(hid_dev->dev.parent->parent) |
be820975 | 100 | |
4916b3a5 JK |
101 | #endif |
102 |