1/*-
2 * Copyright (c) 2014 Nahanni Systems Inc.
3 * 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#include <sys/cdefs.h>
28__FBSDID("$FreeBSD: releng/11.0/usr.sbin/bhyve/usb_emul.c 302408 2016-07-08 00:04:57Z gjb $");
29
30#include <sys/types.h>
31#include <sys/queue.h>
32
33#include <assert.h>
34#include <stdio.h>
35#include <stdlib.h>
36#include <string.h>
37#include <pthread.h>
38
39#include "usb_emul.h"
40
41SET_DECLARE(usb_emu_set, struct usb_devemu);
42
43struct usb_devemu *
44usb_emu_finddev(char *name)
45{
46	struct usb_devemu **udpp, *udp;
47
48	SET_FOREACH(udpp, usb_emu_set) {
49		udp = *udpp;
50		if (!strcmp(udp->ue_emu, name))
51			return (udp);
52	}
53
54	return (NULL);
55}
56
57struct usb_data_xfer_block *
58usb_data_xfer_append(struct usb_data_xfer *xfer, void *buf, int blen,
59                     void *hci_data, int ccs)
60{
61	struct usb_data_xfer_block *xb;
62
63	if (xfer->ndata >= USB_MAX_XFER_BLOCKS)
64		return (NULL);
65
66	xb = &xfer->data[xfer->tail];
67	xb->buf = buf;
68	xb->blen = blen;
69	xb->hci_data = hci_data;
70	xb->ccs = ccs;
71	xb->processed = 0;
72	xb->bdone = 0;
73	xfer->ndata++;
74	xfer->tail = (xfer->tail + 1) % USB_MAX_XFER_BLOCKS;
75	return (xb);
76}
77