xref: /aosp_15_r20/external/coreboot/payloads/libpayload/drivers/usb/usb_dev.c (revision b9411a12aaaa7e1e6a6fb7c5e057f44ee179a49c)
1 /*
2  *
3  * Copyright (C) 2008 coresystems GmbH
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  * 3. The name of the author may not be used to endorse or promote products
14  *    derived from this software without specific prior written permission.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26  * SUCH DAMAGE.
27  */
28 
29 #include <usb/usb.h>
30 
31 static void
usb_nop_destroy(usbdev_t * dev)32 usb_nop_destroy(usbdev_t *dev)
33 {
34 	usb_nop_init(dev);
35 	dev->address = -1;
36 	dev->hub = -1;
37 	dev->port = -1;
38 }
39 
40 static void
usb_nop_poll(usbdev_t * dev)41 usb_nop_poll(usbdev_t *dev)
42 {
43 	return;
44 }
45 
46 void
usb_nop_init(usbdev_t * dev)47 usb_nop_init(usbdev_t *dev)
48 {
49 	dev->descriptor = NULL;
50 	dev->configuration = NULL;
51 	dev->destroy = usb_nop_destroy;
52 	dev->poll = usb_nop_poll;
53 }
54