linux-headers (unknown)
1 /* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
2 /*****************************************************************************/
3
4 /*
5 * usbdevice_fs.h -- USB device file system.
6 *
7 * Copyright (C) 2000
8 * Thomas Sailer (sailer@ife.ee.ethz.ch)
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
23 *
24 * History:
25 * 0.1 04.01.2000 Created
26 */
27
28 /*****************************************************************************/
29
30 #ifndef _LINUX_USBDEVICE_FS_H
31 #define _LINUX_USBDEVICE_FS_H
32
33 #include <linux/types.h>
34 #include <linux/magic.h>
35
36 /* --------------------------------------------------------------------- */
37
38 /* usbdevfs ioctl codes */
39
40 struct usbdevfs_ctrltransfer {
41 __u8 bRequestType;
42 __u8 bRequest;
43 __u16 wValue;
44 __u16 wIndex;
45 __u16 wLength;
46 __u32 timeout; /* in milliseconds */
47 void *data;
48 };
49
50 struct usbdevfs_bulktransfer {
51 unsigned int ep;
52 unsigned int len;
53 unsigned int timeout; /* in milliseconds */
54 void *data;
55 };
56
57 struct usbdevfs_setinterface {
58 unsigned int interface;
59 unsigned int altsetting;
60 };
61
62 struct usbdevfs_disconnectsignal {
63 unsigned int signr;
64 void *context;
65 };
66
67 #define USBDEVFS_MAXDRIVERNAME 255
68
69 struct usbdevfs_getdriver {
70 unsigned int interface;
71 char driver[USBDEVFS_MAXDRIVERNAME + 1];
72 };
73
74 struct usbdevfs_connectinfo {
75 unsigned int devnum;
76 unsigned char slow;
77 };
78
79 struct usbdevfs_conninfo_ex {
80 __u32 size; /* Size of the structure from the kernel's */
81 /* point of view. Can be used by userspace */
82 /* to determine how much data can be */
83 /* used/trusted. */
84 __u32 busnum; /* USB bus number, as enumerated by the */
85 /* kernel, the device is connected to. */
86 __u32 devnum; /* Device address on the bus. */
87 __u32 speed; /* USB_SPEED_* constants from ch9.h */
88 __u8 num_ports; /* Number of ports the device is connected */
89 /* to on the way to the root hub. It may */
90 /* be bigger than size of 'ports' array so */
91 /* userspace can detect overflows. */
92 __u8 ports[7]; /* List of ports on the way from the root */
93 /* hub to the device. Current limit in */
94 /* USB specification is 7 tiers (root hub, */
95 /* 5 intermediate hubs, device), which */
96 /* gives at most 6 port entries. */
97 };
98
99 #define USBDEVFS_URB_SHORT_NOT_OK 0x01
100 #define USBDEVFS_URB_ISO_ASAP 0x02
101 #define USBDEVFS_URB_BULK_CONTINUATION 0x04
102 #define USBDEVFS_URB_NO_FSBR 0x20 /* Not used */
103 #define USBDEVFS_URB_ZERO_PACKET 0x40
104 #define USBDEVFS_URB_NO_INTERRUPT 0x80
105
106 #define USBDEVFS_URB_TYPE_ISO 0
107 #define USBDEVFS_URB_TYPE_INTERRUPT 1
108 #define USBDEVFS_URB_TYPE_CONTROL 2
109 #define USBDEVFS_URB_TYPE_BULK 3
110
111 struct usbdevfs_iso_packet_desc {
112 unsigned int length;
113 unsigned int actual_length;
114 unsigned int status;
115 };
116
117 struct usbdevfs_urb {
118 unsigned char type;
119 unsigned char endpoint;
120 int status;
121 unsigned int flags;
122 void *buffer;
123 int buffer_length;
124 int actual_length;
125 int start_frame;
126 union {
127 int number_of_packets; /* Only used for isoc urbs */
128 unsigned int stream_id; /* Only used with bulk streams */
129 };
130 int error_count;
131 unsigned int signr; /* signal to be sent on completion,
132 or 0 if none should be sent. */
133 void *usercontext;
134 struct usbdevfs_iso_packet_desc iso_frame_desc[];
135 };
136
137 /* ioctls for talking directly to drivers */
138 struct usbdevfs_ioctl {
139 int ifno; /* interface 0..N ; negative numbers reserved */
140 int ioctl_code; /* MUST encode size + direction of data so the
141 * macros in <asm/ioctl.h> give correct values */
142 void *data; /* param buffer (in, or out) */
143 };
144
145 /* You can do most things with hubs just through control messages,
146 * except find out what device connects to what port. */
147 struct usbdevfs_hub_portinfo {
148 char nports; /* number of downstream ports in this hub */
149 char port [127]; /* e.g. port 3 connects to device 27 */
150 };
151
152 /* System and bus capability flags */
153 #define USBDEVFS_CAP_ZERO_PACKET 0x01
154 #define USBDEVFS_CAP_BULK_CONTINUATION 0x02
155 #define USBDEVFS_CAP_NO_PACKET_SIZE_LIM 0x04
156 #define USBDEVFS_CAP_BULK_SCATTER_GATHER 0x08
157 #define USBDEVFS_CAP_REAP_AFTER_DISCONNECT 0x10
158 #define USBDEVFS_CAP_MMAP 0x20
159 #define USBDEVFS_CAP_DROP_PRIVILEGES 0x40
160 #define USBDEVFS_CAP_CONNINFO_EX 0x80
161 #define USBDEVFS_CAP_SUSPEND 0x100
162
163 /* USBDEVFS_DISCONNECT_CLAIM flags & struct */
164
165 /* disconnect-and-claim if the driver matches the driver field */
166 #define USBDEVFS_DISCONNECT_CLAIM_IF_DRIVER 0x01
167 /* disconnect-and-claim except when the driver matches the driver field */
168 #define USBDEVFS_DISCONNECT_CLAIM_EXCEPT_DRIVER 0x02
169
170 struct usbdevfs_disconnect_claim {
171 unsigned int interface;
172 unsigned int flags;
173 char driver[USBDEVFS_MAXDRIVERNAME + 1];
174 };
175
176 struct usbdevfs_streams {
177 unsigned int num_streams; /* Not used by USBDEVFS_FREE_STREAMS */
178 unsigned int num_eps;
179 unsigned char eps[];
180 };
181
182 /*
183 * USB_SPEED_* values returned by USBDEVFS_GET_SPEED are defined in
184 * linux/usb/ch9.h
185 */
186
187 #define USBDEVFS_CONTROL _IOWR('U', 0, struct usbdevfs_ctrltransfer)
188 #define USBDEVFS_CONTROL32 _IOWR('U', 0, struct usbdevfs_ctrltransfer32)
189 #define USBDEVFS_BULK _IOWR('U', 2, struct usbdevfs_bulktransfer)
190 #define USBDEVFS_BULK32 _IOWR('U', 2, struct usbdevfs_bulktransfer32)
191 #define USBDEVFS_RESETEP _IOR('U', 3, unsigned int)
192 #define USBDEVFS_SETINTERFACE _IOR('U', 4, struct usbdevfs_setinterface)
193 #define USBDEVFS_SETCONFIGURATION _IOR('U', 5, unsigned int)
194 #define USBDEVFS_GETDRIVER _IOW('U', 8, struct usbdevfs_getdriver)
195 #define USBDEVFS_SUBMITURB _IOR('U', 10, struct usbdevfs_urb)
196 #define USBDEVFS_SUBMITURB32 _IOR('U', 10, struct usbdevfs_urb32)
197 #define USBDEVFS_DISCARDURB _IO('U', 11)
198 #define USBDEVFS_REAPURB _IOW('U', 12, void *)
199 #define USBDEVFS_REAPURB32 _IOW('U', 12, __u32)
200 #define USBDEVFS_REAPURBNDELAY _IOW('U', 13, void *)
201 #define USBDEVFS_REAPURBNDELAY32 _IOW('U', 13, __u32)
202 #define USBDEVFS_DISCSIGNAL _IOR('U', 14, struct usbdevfs_disconnectsignal)
203 #define USBDEVFS_DISCSIGNAL32 _IOR('U', 14, struct usbdevfs_disconnectsignal32)
204 #define USBDEVFS_CLAIMINTERFACE _IOR('U', 15, unsigned int)
205 #define USBDEVFS_RELEASEINTERFACE _IOR('U', 16, unsigned int)
206 #define USBDEVFS_CONNECTINFO _IOW('U', 17, struct usbdevfs_connectinfo)
207 #define USBDEVFS_IOCTL _IOWR('U', 18, struct usbdevfs_ioctl)
208 #define USBDEVFS_IOCTL32 _IOWR('U', 18, struct usbdevfs_ioctl32)
209 #define USBDEVFS_HUB_PORTINFO _IOR('U', 19, struct usbdevfs_hub_portinfo)
210 #define USBDEVFS_RESET _IO('U', 20)
211 #define USBDEVFS_CLEAR_HALT _IOR('U', 21, unsigned int)
212 #define USBDEVFS_DISCONNECT _IO('U', 22)
213 #define USBDEVFS_CONNECT _IO('U', 23)
214 #define USBDEVFS_CLAIM_PORT _IOR('U', 24, unsigned int)
215 #define USBDEVFS_RELEASE_PORT _IOR('U', 25, unsigned int)
216 #define USBDEVFS_GET_CAPABILITIES _IOR('U', 26, __u32)
217 #define USBDEVFS_DISCONNECT_CLAIM _IOR('U', 27, struct usbdevfs_disconnect_claim)
218 #define USBDEVFS_ALLOC_STREAMS _IOR('U', 28, struct usbdevfs_streams)
219 #define USBDEVFS_FREE_STREAMS _IOR('U', 29, struct usbdevfs_streams)
220 #define USBDEVFS_DROP_PRIVILEGES _IOW('U', 30, __u32)
221 #define USBDEVFS_GET_SPEED _IO('U', 31)
222 /*
223 * Returns struct usbdevfs_conninfo_ex; length is variable to allow
224 * extending size of the data returned.
225 */
226 #define USBDEVFS_CONNINFO_EX(len) _IOC(_IOC_READ, 'U', 32, len)
227 #define USBDEVFS_FORBID_SUSPEND _IO('U', 33)
228 #define USBDEVFS_ALLOW_SUSPEND _IO('U', 34)
229 #define USBDEVFS_WAIT_FOR_RESUME _IO('U', 35)
230
231 #endif /* _LINUX_USBDEVICE_FS_H */
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