1 /*****************************************************************************/
2
3 /*
4 * usbdevice_fs.h -- USB device file system.
5 *
6 * Copyright (C) 2000
7 * Thomas Sailer (sailer@ife.ee.ethz.ch)
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
22 *
23 * History:
24 * 0.1 04.01.2000 Created
25 *
26 * $Id: usbdevice_fs.h,v 1.1 2000/01/06 18:40:41 tom Exp $
27 */
28
29 /*****************************************************************************/
30
31 #ifndef _LINUX_USBDEVICE_FS_H
32 #define _LINUX_USBDEVICE_FS_H
33
34 #include <linux/types.h>
35
36 /* --------------------------------------------------------------------- */
37
38 #define USBDEVICE_SUPER_MAGIC 0x9fa2
39
40 /* usbdevfs ioctl codes */
41
42 struct usbdevfs_ctrltransfer {
43 __u8 requesttype;
44 __u8 request;
45 __u16 value;
46 __u16 index;
47 __u16 length;
48 __u32 timeout; /* in milliseconds */
49 void *data;
50 };
51
52 struct usbdevfs_bulktransfer {
53 unsigned int ep;
54 unsigned int len;
55 unsigned int timeout; /* in milliseconds */
56 void *data;
57 };
58
59 struct usbdevfs_setinterface {
60 unsigned int interface;
61 unsigned int altsetting;
62 };
63
64 struct usbdevfs_disconnectsignal {
65 unsigned int signr;
66 void *context;
67 };
68
69 #define USBDEVFS_MAXDRIVERNAME 255
70
71 struct usbdevfs_getdriver {
72 unsigned int interface;
73 char driver[USBDEVFS_MAXDRIVERNAME + 1];
74 };
75
76 struct usbdevfs_connectinfo {
77 unsigned int devnum;
78 unsigned char slow;
79 };
80
81 #define USBDEVFS_URB_DISABLE_SPD 1
82 #define USBDEVFS_URB_ISO_ASAP 2
83 #define USBDEVFS_URB_QUEUE_BULK 0x10
84
85 #define USBDEVFS_URB_TYPE_ISO 0
86 #define USBDEVFS_URB_TYPE_INTERRUPT 1
87 #define USBDEVFS_URB_TYPE_CONTROL 2
88 #define USBDEVFS_URB_TYPE_BULK 3
89
90 struct usbdevfs_iso_packet_desc {
91 unsigned int length;
92 unsigned int actual_length;
93 unsigned int status;
94 };
95
96 struct usbdevfs_urb {
97 unsigned char type;
98 unsigned char endpoint;
99 int status;
100 unsigned int flags;
101 void *buffer;
102 int buffer_length;
103 int actual_length;
104 int start_frame;
105 int number_of_packets;
106 int error_count;
107 unsigned int signr; /* signal to be sent on error, -1 if none should be sent */
108 void *usercontext;
109 struct usbdevfs_iso_packet_desc iso_frame_desc[0];
110 };
111
112 /* ioctls for talking to drivers in the usbcore module: */
113 struct usbdevfs_ioctl {
114 int ifno; /* interface 0..N ; negative numbers reserved */
115 int ioctl_code; /* MUST encode size + direction of data so the
116 * macros in <asm/ioctl.h> give correct values */
117 void *data; /* param buffer (in, or out) */
118 };
119
120 /* You can do most things with hubs just through control messages,
121 * except find out what device connects to what port. */
122 struct usbdevfs_hub_portinfo {
123 char nports; /* number of downstream ports in this hub */
124 char port [127]; /* e.g. port 3 connects to device 27 */
125 };
126
127 #define USBDEVFS_CONTROL _IOWR('U', 0, struct usbdevfs_ctrltransfer)
128 #define USBDEVFS_BULK _IOWR('U', 2, struct usbdevfs_bulktransfer)
129 #define USBDEVFS_RESETEP _IOR('U', 3, unsigned int)
130 #define USBDEVFS_SETINTERFACE _IOR('U', 4, struct usbdevfs_setinterface)
131 #define USBDEVFS_SETCONFIGURATION _IOR('U', 5, unsigned int)
132 #define USBDEVFS_GETDRIVER _IOW('U', 8, struct usbdevfs_getdriver)
133 #define USBDEVFS_SUBMITURB _IOR('U', 10, struct usbdevfs_urb)
134 #define USBDEVFS_DISCARDURB _IO('U', 11)
135 #define USBDEVFS_REAPURB _IOW('U', 12, void *)
136 #define USBDEVFS_REAPURBNDELAY _IOW('U', 13, void *)
137 #define USBDEVFS_DISCSIGNAL _IOR('U', 14, struct usbdevfs_disconnectsignal)
138 #define USBDEVFS_CLAIMINTERFACE _IOR('U', 15, unsigned int)
139 #define USBDEVFS_RELEASEINTERFACE _IOR('U', 16, unsigned int)
140 #define USBDEVFS_CONNECTINFO _IOW('U', 17, struct usbdevfs_connectinfo)
141 #define USBDEVFS_IOCTL _IOWR('U', 18, struct usbdevfs_ioctl)
142 #define USBDEVFS_HUB_PORTINFO _IOR('U', 19, struct usbdevfs_hub_portinfo)
143 #define USBDEVFS_RESET _IO('U', 20)
144 #define USBDEVFS_CLEAR_HALT _IOR('U', 21, unsigned int)
145
146 /* --------------------------------------------------------------------- */
147
148 #ifdef __KERNEL__
149
150 #include <linux/list.h>
151 #include <asm/semaphore.h>
152
153 /*
154 * inode number macros
155 */
156 #define ITYPE(x) ((x)&(0xf<<28))
157 #define ISPECIAL (0<<28)
158 #define IBUS (1<<28)
159 #define IDEVICE (2<<28)
160 #define IBUSNR(x) (((x)>>8)&0xff)
161 #define IDEVNR(x) ((x)&0xff)
162
163 #define IROOT 1
164
165 /*
166 * sigh. rwsemaphores do not (yet) work from modules
167 */
168
169 #define rw_semaphore semaphore
170 #define init_rwsem init_MUTEX
171 #define down_read down
172 #define down_write down
173 #define up_read up
174 #define up_write up
175
176
177 struct dev_state {
178 struct list_head list; /* state list */
179 struct rw_semaphore devsem; /* protects modifications to dev (dev == NULL indicating disconnect) */
180 struct usb_device *dev;
181 struct file *file;
182 spinlock_t lock; /* protects the async urb lists */
183 struct list_head async_pending;
184 struct list_head async_completed;
185 wait_queue_head_t wait; /* wake up if a request completed */
186 unsigned int discsignr;
187 struct task_struct *disctask;
188 void *disccontext;
189 unsigned long ifclaimed;
190 };
191
192 /* internal methods & data */
193 extern struct usb_driver usbdevfs_driver;
194 extern struct file_operations usbdevfs_drivers_fops;
195 extern struct file_operations usbdevfs_devices_fops;
196 extern struct file_operations usbdevfs_device_file_operations;
197 extern struct inode_operations usbdevfs_device_inode_operations;
198 extern struct inode_operations usbdevfs_bus_inode_operations;
199 extern struct file_operations usbdevfs_bus_file_operations;
200 extern void usbdevfs_conn_disc_event(void);
201
202 #endif /* __KERNEL__ */
203
204 /* --------------------------------------------------------------------- */
205 #endif /* _LINUX_USBDEVICE_FS_H */
206
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