xref: /freebsd/sys/dev/usb/usb_pf.h (revision a9fcb51fbb8d2c5b47a35bcae5b4d5fb771c5985)
1 /*-
2  * Copyright (c) 1990, 1991, 1993
3  *	The Regents of the University of California.  All rights reserved.
4  *
5  * This code is derived from the Stanford/CMU enet packet filter,
6  * (net/enet.c) distributed as part of 4.3BSD, and code contributed
7  * to Berkeley by Steven McCanne and Van Jacobson both of Lawrence
8  * Berkeley Laboratory.
9  *
10  * Redistribution and use in source and binary forms, with or without
11  * modification, are permitted provided that the following conditions
12  * are met:
13  * 1. Redistributions of source code must retain the above copyright
14  *    notice, this list of conditions and the following disclaimer.
15  * 2. Redistributions in binary form must reproduce the above copyright
16  *    notice, this list of conditions and the following disclaimer in the
17  *    documentation and/or other materials provided with the distribution.
18  * 4. Neither the name of the University nor the names of its contributors
19  *    may be used to endorse or promote products derived from this software
20  *    without specific prior written permission.
21  *
22  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32  * SUCH DAMAGE.
33  *
34  * $FreeBSD$
35  */
36 
37 #ifndef _DEV_USB_PF_H
38 #define	_DEV_USB_PF_H
39 
40 struct usbpf_pkthdr {
41 	uint32_t	up_totlen;	/* Total length including all headers */
42 	uint32_t	up_busunit;	/* Host controller unit number */
43 	uint8_t		up_address;	/* USB device index */
44 	uint8_t		up_mode;	/* Mode of transfer */
45 #define	USBPF_MODE_HOST		0
46 #define	USBPF_MODE_DEVICE	1
47 	uint8_t		up_type;	/* points SUBMIT / DONE */
48 	uint8_t		up_xfertype;	/* Transfer type, see USB2.0 spec. */
49 	uint32_t	up_flags;	/* Transfer flags */
50 #define	USBPF_FLAG_FORCE_SHORT_XFER	(1 << 0)
51 #define	USBPF_FLAG_SHORT_XFER_OK	(1 << 1)
52 #define	USBPF_FLAG_SHORT_FRAMES_OK	(1 << 2)
53 #define	USBPF_FLAG_PIPE_BOF		(1 << 3)
54 #define	USBPF_FLAG_PROXY_BUFFER		(1 << 4)
55 #define	USBPF_FLAG_EXT_BUFFER		(1 << 5)
56 #define	USBPF_FLAG_MANUAL_STATUS	(1 << 6)
57 #define	USBPF_FLAG_NO_PIPE_OK		(1 << 7)
58 #define	USBPF_FLAG_STALL_PIPE		(1 << 8)
59 	uint32_t	up_status;	/* Transfer status */
60 #define	USBPF_STATUS_OPEN		(1 << 0)
61 #define	USBPF_STATUS_TRANSFERRING	(1 << 1)
62 #define	USBPF_STATUS_DID_DMA_DELAY	(1 << 2)
63 #define	USBPF_STATUS_DID_CLOSE		(1 << 3)
64 #define	USBPF_STATUS_DRAINING		(1 << 4)
65 #define	USBPF_STATUS_STARTED		(1 << 5)
66 #define	USBPF_STATUS_BW_RECLAIMED	(1 << 6)
67 #define	USBPF_STATUS_CONTROL_XFR	(1 << 7)
68 #define	USBPF_STATUS_CONTROL_HDR	(1 << 8)
69 #define	USBPF_STATUS_CONTROL_ACT	(1 << 9)
70 #define	USBPF_STATUS_CONTROL_STALL	(1 << 10)
71 #define	USBPF_STATUS_SHORT_FRAMES_OK	(1 << 11)
72 #define	USBPF_STATUS_SHORT_XFER_OK	(1 << 12)
73 #define	USBPF_STATUS_BDMA_ENABLE	(1 << 13)
74 #define	USBPF_STATUS_BDMA_NO_POST_SYNC	(1 << 14)
75 #define	USBPF_STATUS_BDMA_SETUP		(1 << 15)
76 #define	USBPF_STATUS_ISOCHRONOUS_XFR	(1 << 16)
77 #define	USBPF_STATUS_CURR_DMA_SET	(1 << 17)
78 #define	USBPF_STATUS_CAN_CANCEL_IMMED	(1 << 18)
79 #define	USBPF_STATUS_DOING_CALLBACK	(1 << 19)
80 	uint32_t	up_error;	/* USB error, see USB_ERR_XXX */
81 	uint32_t	up_interval;	/* For interrupt and isoc (ms) */
82 	uint32_t	up_frames;	/* Number of following frames */
83 	uint32_t	up_packet_size;	/* Packet size used */
84 	uint32_t	up_packet_count;	/* Packet count used */
85 	uint32_t	up_endpoint;	/* USB endpoint / stream ID */
86 	uint8_t		up_speed;	/* USB speed, see USB_SPEED_XXX */
87 	/* sizeof(struct usbpf_pkthdr) == 128 bytes */
88 	uint8_t		up_reserved[83];
89 };
90 
91 struct usbpf_framehdr {
92 	/*
93 	 * The frame length field excludes length of frame header and
94 	 * any alignment.
95 	 */
96 	uint32_t length;
97 #define	USBPF_FRAME_ALIGN(x)		(((x) + 3) & ~3)
98 	uint32_t flags;
99 #define	USBPF_FRAMEFLAG_READ		(1 << 0)
100 #define	USBPF_FRAMEFLAG_DATA_FOLLOWS	(1 << 1)
101 };
102 
103 #define	USBPF_HDR_LEN		128	/* bytes */
104 #define	USBPF_FRAME_HDR_LEN	8	/* bytes */
105 
106 extern uint8_t usbpf_pkthdr_size_ok[
107     (sizeof(struct usbpf_pkthdr) == USBPF_HDR_LEN) ? 1 : -1];
108 extern uint8_t usbpf_framehdr_size_ok[
109     (sizeof(struct usbpf_framehdr) == USBPF_FRAME_HDR_LEN) ? 1 : -1];
110 
111 #define	USBPF_XFERTAP_SUBMIT	0
112 #define	USBPF_XFERTAP_DONE	1
113 
114 #ifdef _KERNEL
115 void	usbpf_attach(struct usb_bus *);
116 void	usbpf_detach(struct usb_bus *);
117 void	usbpf_xfertap(struct usb_xfer *, int);
118 #endif
119 
120 #endif
121