1 /*
2 * usbfs header structures
3 * Copyright © 2007 Daniel Drake <dsd@gentoo.org>
4 * Copyright © 2001 Johannes Erdfelt <johannes@erdfelt.com>
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20
21 #ifndef LIBUSB_USBFS_H
22 #define LIBUSB_USBFS_H
23
24 #include <linux/magic.h>
25 #include <linux/types.h>
26
27 #define SYSFS_MOUNT_PATH "/sys"
28 #define SYSFS_DEVICE_PATH SYSFS_MOUNT_PATH "/bus/usb/devices"
29
30 struct usbfs_ctrltransfer {
31 /* keep in sync with usbdevice_fs.h:usbdevfs_ctrltransfer */
32 __u8 bmRequestType;
33 __u8 bRequest;
34 __u16 wValue;
35 __u16 wIndex;
36 __u16 wLength;
37 __u32 timeout; /* in milliseconds */
38
39 /* pointer to data */
40 void *data;
41 };
42
43 struct usbfs_setinterface {
44 /* keep in sync with usbdevice_fs.h:usbdevfs_setinterface */
45 unsigned int interface;
46 unsigned int altsetting;
47 };
48
49 #define USBFS_MAXDRIVERNAME 255
50
51 struct usbfs_getdriver {
52 unsigned int interface;
53 char driver[USBFS_MAXDRIVERNAME + 1];
54 };
55
56 #define USBFS_URB_SHORT_NOT_OK 0x01
57 #define USBFS_URB_ISO_ASAP 0x02
58 #define USBFS_URB_BULK_CONTINUATION 0x04
59 #define USBFS_URB_QUEUE_BULK 0x10
60 #define USBFS_URB_ZERO_PACKET 0x40
61
62 #define USBFS_URB_TYPE_ISO 0
63 #define USBFS_URB_TYPE_INTERRUPT 1
64 #define USBFS_URB_TYPE_CONTROL 2
65 #define USBFS_URB_TYPE_BULK 3
66
67 struct usbfs_iso_packet_desc {
68 unsigned int length;
69 unsigned int actual_length;
70 unsigned int status;
71 };
72
73 #define MAX_BULK_BUFFER_LENGTH 16384
74 #define MAX_CTRL_BUFFER_LENGTH 4096
75
76 #define MAX_ISO_PACKETS_PER_URB 128
77
78 struct usbfs_urb {
79 unsigned char type;
80 unsigned char endpoint;
81 int status;
82 unsigned int flags;
83 void *buffer;
84 int buffer_length;
85 int actual_length;
86 int start_frame;
87 union {
88 int number_of_packets; /* Only used for isoc urbs */
89 unsigned int stream_id; /* Only used with bulk streams */
90 };
91 int error_count;
92 unsigned int signr;
93 void *usercontext;
94 struct usbfs_iso_packet_desc iso_frame_desc[0];
95 };
96
97 struct usbfs_connectinfo {
98 unsigned int devnum;
99 unsigned char slow;
100 };
101
102 struct usbfs_ioctl {
103 int ifno; /* interface 0..N ; negative numbers reserved */
104 int ioctl_code; /* MUST encode size + direction of data so the
105 * macros in <asm/ioctl.h> give correct values */
106 void *data; /* param buffer (in, or out) */
107 };
108
109 #define USBFS_CAP_ZERO_PACKET 0x01
110 #define USBFS_CAP_BULK_CONTINUATION 0x02
111 #define USBFS_CAP_NO_PACKET_SIZE_LIM 0x04
112 #define USBFS_CAP_BULK_SCATTER_GATHER 0x08
113 #define USBFS_CAP_REAP_AFTER_DISCONNECT 0x10
114
115 #define USBFS_DISCONNECT_CLAIM_IF_DRIVER 0x01
116 #define USBFS_DISCONNECT_CLAIM_EXCEPT_DRIVER 0x02
117
118 struct usbfs_disconnect_claim {
119 unsigned int interface;
120 unsigned int flags;
121 char driver[USBFS_MAXDRIVERNAME + 1];
122 };
123
124 struct usbfs_streams {
125 unsigned int num_streams; /* Not used by USBDEVFS_FREE_STREAMS */
126 unsigned int num_eps;
127 unsigned char eps[0];
128 };
129
130 #define USBFS_SPEED_UNKNOWN 0
131 #define USBFS_SPEED_LOW 1
132 #define USBFS_SPEED_FULL 2
133 #define USBFS_SPEED_HIGH 3
134 #define USBFS_SPEED_WIRELESS 4
135 #define USBFS_SPEED_SUPER 5
136 #define USBFS_SPEED_SUPER_PLUS 6
137
138 #define IOCTL_USBFS_CONTROL _IOWR('U', 0, struct usbfs_ctrltransfer)
139 #define IOCTL_USBFS_SETINTERFACE _IOR('U', 4, struct usbfs_setinterface)
140 #define IOCTL_USBFS_SETCONFIGURATION _IOR('U', 5, unsigned int)
141 #define IOCTL_USBFS_GETDRIVER _IOW('U', 8, struct usbfs_getdriver)
142 #define IOCTL_USBFS_SUBMITURB _IOR('U', 10, struct usbfs_urb)
143 #define IOCTL_USBFS_DISCARDURB _IO('U', 11)
144 #define IOCTL_USBFS_REAPURBNDELAY _IOW('U', 13, void *)
145 #define IOCTL_USBFS_CLAIMINTERFACE _IOR('U', 15, unsigned int)
146 #define IOCTL_USBFS_RELEASEINTERFACE _IOR('U', 16, unsigned int)
147 #define IOCTL_USBFS_CONNECTINFO _IOW('U', 17, struct usbfs_connectinfo)
148 #define IOCTL_USBFS_IOCTL _IOWR('U', 18, struct usbfs_ioctl)
149 #define IOCTL_USBFS_RESET _IO('U', 20)
150 #define IOCTL_USBFS_CLEAR_HALT _IOR('U', 21, unsigned int)
151 #define IOCTL_USBFS_DISCONNECT _IO('U', 22)
152 #define IOCTL_USBFS_CONNECT _IO('U', 23)
153 #define IOCTL_USBFS_GET_CAPABILITIES _IOR('U', 26, __u32)
154 #define IOCTL_USBFS_DISCONNECT_CLAIM _IOR('U', 27, struct usbfs_disconnect_claim)
155 #define IOCTL_USBFS_ALLOC_STREAMS _IOR('U', 28, struct usbfs_streams)
156 #define IOCTL_USBFS_FREE_STREAMS _IOR('U', 29, struct usbfs_streams)
157 #define IOCTL_USBFS_DROP_PRIVILEGES _IOW('U', 30, __u32)
158 #define IOCTL_USBFS_GET_SPEED _IO('U', 31)
159
160 extern usbi_mutex_static_t linux_hotplug_lock;
161
162 #ifdef HAVE_LIBUDEV
163 int linux_udev_start_event_monitor(void);
164 int linux_udev_stop_event_monitor(void);
165 int linux_udev_scan_devices(struct libusb_context *ctx);
166 void linux_udev_hotplug_poll(void);
167 #else
168 int linux_netlink_start_event_monitor(void);
169 int linux_netlink_stop_event_monitor(void);
170 void linux_netlink_hotplug_poll(void);
171 #endif
172
linux_start_event_monitor(void)173 static inline int linux_start_event_monitor(void)
174 {
175 #if defined(HAVE_LIBUDEV)
176 return linux_udev_start_event_monitor();
177 #elif !defined(__ANDROID__)
178 return linux_netlink_start_event_monitor();
179 #else
180 return LIBUSB_SUCCESS;
181 #endif
182 }
183
linux_stop_event_monitor(void)184 static inline void linux_stop_event_monitor(void)
185 {
186 #if defined(HAVE_LIBUDEV)
187 linux_udev_stop_event_monitor();
188 #elif !defined(__ANDROID__)
189 linux_netlink_stop_event_monitor();
190 #endif
191 }
192
linux_hotplug_poll(void)193 static inline void linux_hotplug_poll(void)
194 {
195 #if defined(HAVE_LIBUDEV)
196 linux_udev_hotplug_poll();
197 #elif !defined(__ANDROID__)
198 linux_netlink_hotplug_poll();
199 #endif
200 }
201
202 void linux_hotplug_enumerate(uint8_t busnum, uint8_t devaddr, const char *sys_name);
203 void linux_device_disconnected(uint8_t busnum, uint8_t devaddr);
204
205 int linux_get_device_address(struct libusb_context *ctx, int detached,
206 uint8_t *busnum, uint8_t *devaddr, const char *dev_node,
207 const char *sys_name, int fd);
208 int linux_enumerate_device(struct libusb_context *ctx,
209 uint8_t busnum, uint8_t devaddr, const char *sysfs_dir);
210
211 #endif
212