1/* $FreeBSD$ */
2/*-
3 * Copyright (c) 2008 Hans Petter Selasky. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26
27#ifdef USB_GLOBAL_INCLUDE_FILE
28#include USB_GLOBAL_INCLUDE_FILE
29#else
30#include <sys/stdint.h>
31#include <sys/stddef.h>
32#include <sys/param.h>
33#include <sys/queue.h>
34#include <sys/types.h>
35#include <sys/systm.h>
36#include <sys/kernel.h>
37#include <sys/bus.h>
38#include <sys/module.h>
39#include <sys/lock.h>
40#include <sys/mutex.h>
41#include <sys/condvar.h>
42#include <sys/sysctl.h>
43#include <sys/sx.h>
44#include <sys/unistd.h>
45#include <sys/callout.h>
46#include <sys/malloc.h>
47#include <sys/priv.h>
48
49#include <dev/usb/usb.h>
50#include <dev/usb/usbdi.h>
51
52#include <dev/usb/usb_core.h>
53#include <dev/usb/usb_process.h>
54#include <dev/usb/usb_device.h>
55#include <dev/usb/usb_dynamic.h>
56#include <dev/usb/usb_request.h>
57#endif			/* USB_GLOBAL_INCLUDE_FILE */
58
59/* function prototypes */
60static usb_handle_req_t usb_temp_get_desc_w;
61static usb_temp_setup_by_index_t usb_temp_setup_by_index_w;
62static usb_temp_unsetup_t usb_temp_unsetup_w;
63static usb_test_quirk_t usb_test_quirk_w;
64static usb_quirk_ioctl_t usb_quirk_ioctl_w;
65
66/* global variables */
67usb_handle_req_t *usb_temp_get_desc_p = &usb_temp_get_desc_w;
68usb_temp_setup_by_index_t *usb_temp_setup_by_index_p = &usb_temp_setup_by_index_w;
69usb_temp_unsetup_t *usb_temp_unsetup_p = &usb_temp_unsetup_w;
70usb_test_quirk_t *usb_test_quirk_p = &usb_test_quirk_w;
71usb_quirk_ioctl_t *usb_quirk_ioctl_p = &usb_quirk_ioctl_w;
72devclass_t usb_devclass_ptr;
73
74static usb_error_t
75usb_temp_setup_by_index_w(struct usb_device *udev, uint16_t index)
76{
77	return (USB_ERR_INVAL);
78}
79
80static uint8_t
81usb_test_quirk_w(const struct usbd_lookup_info *info, uint16_t quirk)
82{
83	return (0);			/* no match */
84}
85
86static int
87usb_quirk_ioctl_w(unsigned long cmd, caddr_t data, int fflag, struct thread *td)
88{
89	return (ENOIOCTL);
90}
91
92static usb_error_t
93usb_temp_get_desc_w(struct usb_device *udev, struct usb_device_request *req, const void **pPtr, uint16_t *pLength)
94{
95	/* stall */
96	return (USB_ERR_STALLED);
97}
98
99static void
100usb_temp_unsetup_w(struct usb_device *udev)
101{
102	usbd_free_config_desc(udev, udev->usb_template_ptr);
103	udev->usb_template_ptr = NULL;
104}
105
106void
107usb_quirk_unload(void *arg)
108{
109	/* reset function pointers */
110
111	usb_test_quirk_p = &usb_test_quirk_w;
112	usb_quirk_ioctl_p = &usb_quirk_ioctl_w;
113
114	/* wait for CPU to exit the loaded functions, if any */
115
116	/* XXX this is a tradeoff */
117
118	pause("WAIT", hz);
119}
120
121void
122usb_temp_unload(void *arg)
123{
124	/* reset function pointers */
125
126	usb_temp_get_desc_p = &usb_temp_get_desc_w;
127	usb_temp_setup_by_index_p = &usb_temp_setup_by_index_w;
128	usb_temp_unsetup_p = &usb_temp_unsetup_w;
129
130	/* wait for CPU to exit the loaded functions, if any */
131
132	/* XXX this is a tradeoff */
133
134	pause("WAIT", hz);
135}
136
137void
138usb_bus_unload(void *arg)
139{
140	/* reset function pointers */
141
142	usb_devclass_ptr = NULL;
143
144	/* wait for CPU to exit the loaded functions, if any */
145
146	/* XXX this is a tradeoff */
147
148	pause("WAIT", hz);
149}
150