1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
|
/* $FreeBSD$ */
/*-
* Copyright (c) 2008 Hans Petter Selasky. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef _USB_DEV_H_
#define _USB_DEV_H_
#ifndef USB_GLOBAL_INCLUDE_FILE
#include <sys/file.h>
#include <sys/selinfo.h>
#include <sys/poll.h>
#include <sys/signalvar.h>
#include <sys/proc.h>
#endif
struct usb_fifo;
struct usb_mbuf;
struct usb_symlink {
TAILQ_ENTRY(usb_symlink) sym_entry;
char src_path[32]; /* Source path - including terminating
* zero */
char dst_path[32]; /* Destination path - including
* terminating zero */
uint8_t src_len; /* String length */
uint8_t dst_len; /* String length */
};
/*
* Private per-device information.
*/
struct usb_cdev_privdata {
struct usb_bus *bus;
struct usb_device *udev;
struct usb_interface *iface;
int bus_index; /* bus index */
int dev_index; /* device index */
int ep_addr; /* endpoint address */
int fflags;
uint8_t fifo_index; /* FIFO index */
};
/*
* The following structure defines a minimum re-implementation of the
* ifqueue structure in the kernel.
*/
struct usb_ifqueue {
struct usb_mbuf *ifq_head;
struct usb_mbuf *ifq_tail;
usb_size_t ifq_len;
usb_size_t ifq_maxlen;
};
/*
* Private per-device and per-thread reference information
*/
struct usb_cdev_refdata {
struct usb_fifo *rxfifo;
struct usb_fifo *txfifo;
uint8_t is_read; /* location has read access */
uint8_t is_write; /* location has write access */
uint8_t is_uref; /* USB refcount decr. needed */
uint8_t is_usbfs; /* USB-FS is active */
uint8_t do_unlock; /* USB enum unlock needed */
};
struct usb_fs_privdata {
int bus_index;
int dev_index;
int ep_addr;
int mode;
int fifo_index;
struct cdev *cdev;
LIST_ENTRY(usb_fs_privdata) pd_next;
};
/*
* Most of the fields in the "usb_fifo" structure are used by the
* generic USB access layer.
*/
struct usb_fifo {
struct usb_ifqueue free_q;
struct usb_ifqueue used_q;
struct selinfo selinfo;
struct cv cv_io;
struct cv cv_drain;
struct usb_fifo_methods *methods;
struct usb_symlink *symlink[2];/* our symlinks */
struct proc *async_p; /* process that wants SIGIO */
struct usb_fs_endpoint *fs_ep_ptr;
struct usb_device *udev;
struct usb_xfer *xfer[2];
struct usb_xfer **fs_xfer;
struct mtx *priv_mtx; /* client data */
/* set if FIFO is opened by a FILE: */
struct usb_cdev_privdata *curr_cpd;
void *priv_sc0; /* client data */
void *priv_sc1; /* client data */
void *queue_data;
usb_timeout_t timeout; /* timeout in milliseconds */
usb_frlength_t bufsize; /* BULK and INTERRUPT buffer size */
usb_frcount_t nframes; /* for isochronous mode */
uint16_t dev_ep_index; /* our device endpoint index */
uint8_t flag_sleeping; /* set if FIFO is sleeping */
uint8_t flag_iscomplete; /* set if a USB transfer is complete */
uint8_t flag_iserror; /* set if FIFO error happened */
uint8_t flag_isselect; /* set if FIFO is selected */
uint8_t flag_flushing; /* set if FIFO is flushing data */
uint8_t flag_short; /* set if short_ok or force_short
* transfer flags should be set */
uint8_t flag_stall; /* set if clear stall should be run */
uint8_t flag_write_defrag; /* set to defrag written data */
uint8_t flag_have_fragment; /* set if defragging */
uint8_t iface_index; /* set to the interface we belong to */
uint8_t fifo_index; /* set to the FIFO index in "struct
* usb_device" */
uint8_t fs_ep_max;
uint8_t fifo_zlp; /* zero length packet count */
uint8_t refcount;
#define USB_FIFO_REF_MAX 0xFF
};
extern struct cdevsw usb_devsw;
int usb_fifo_wait(struct usb_fifo *fifo);
void usb_fifo_signal(struct usb_fifo *fifo);
uint8_t usb_fifo_opened(struct usb_fifo *fifo);
struct usb_symlink *usb_alloc_symlink(const char *target);
void usb_free_symlink(struct usb_symlink *ps);
int usb_read_symlink(uint8_t *user_ptr, uint32_t startentry,
uint32_t user_len);
#endif /* _USB_DEV_H_ */
|
