1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2 /*
3  *	usbip.h
4  *
5  *	USBIP uapi defines and function prototypes etc.
6 */
7 
8 #ifndef _UAPI_LINUX_USBIP_H
9 #define _UAPI_LINUX_USBIP_H
10 
11 /* usbip device status - exported in usbip device sysfs status */
12 enum usbip_device_status {
13 	/* sdev is available. */
14 	SDEV_ST_AVAILABLE = 0x01,
15 	/* sdev is now used. */
16 	SDEV_ST_USED,
17 	/* sdev is unusable because of a fatal error. */
18 	SDEV_ST_ERROR,
19 
20 	/* vdev does not connect a remote device. */
21 	VDEV_ST_NULL,
22 	/* vdev is used, but the USB address is not assigned yet */
23 	VDEV_ST_NOTASSIGNED,
24 	VDEV_ST_USED,
25 	VDEV_ST_ERROR
26 };
27 
28 /* USB URB Transfer flags:
29  *
30  * USBIP server and client (vchi) pack URBs in TCP packets. The following
31  * are the transfer type defines used in USBIP protocol.
32  */
33 
34 #define USBIP_URB_SHORT_NOT_OK		0x0001
35 #define USBIP_URB_ISO_ASAP		0x0002
36 #define USBIP_URB_NO_TRANSFER_DMA_MAP	0x0004
37 #define USBIP_URB_ZERO_PACKET		0x0040
38 #define USBIP_URB_NO_INTERRUPT		0x0080
39 #define USBIP_URB_FREE_BUFFER		0x0100
40 #define USBIP_URB_DIR_IN		0x0200
41 #define USBIP_URB_DIR_OUT		0
42 #define USBIP_URB_DIR_MASK		USBIP_URB_DIR_IN
43 
44 #define USBIP_URB_DMA_MAP_SINGLE	0x00010000
45 #define USBIP_URB_DMA_MAP_PAGE		0x00020000
46 #define USBIP_URB_DMA_MAP_SG		0x00040000
47 #define USBIP_URB_MAP_LOCAL		0x00080000
48 #define USBIP_URB_SETUP_MAP_SINGLE	0x00100000
49 #define USBIP_URB_SETUP_MAP_LOCAL	0x00200000
50 #define USBIP_URB_DMA_SG_COMBINED	0x00400000
51 #define USBIP_URB_ALIGNED_TEMP_BUFFER	0x00800000
52 
53 #endif /* _UAPI_LINUX_USBIP_H */
54