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