2 * Linux host USB redirector
4 * Copyright (c) 2005 Fabrice Bellard
6 * Copyright (c) 2008 Max Krasnyansky
7 * Support for host device auto connect & disconnect
8 * Major rewrite to support fully async operation
11 * Added flexible support for /dev/bus/usb /sys/bus/usb/devices in addition
12 * to the legacy /proc/bus/usb USB device discovery and handling
14 * Permission is hereby granted, free of charge, to any person obtaining a copy
15 * of this software and associated documentation files (the "Software"), to deal
16 * in the Software without restriction, including without limitation the rights
17 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
18 * copies of the Software, and to permit persons to whom the Software is
19 * furnished to do so, subject to the following conditions:
21 * The above copyright notice and this permission notice shall be included in
22 * all copies or substantial portions of the Software.
24 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
25 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
26 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
27 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
28 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
29 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
33 #include "qemu-common.h"
35 #include "hw/usb/host.h"
40 * auto:bus:dev[:vid:pid]
41 * auto:bus.dev[:vid:pid]
43 * bus - bus number (dec, * means any)
44 * dev - device number (dec, * means any)
45 * vid - vendor id (hex, * means any)
46 * pid - product id (hex, * means any)
50 static int parse_filter(const char *spec, struct USBAutoFilter *f)
52 enum { BUS, DEV, VID, PID, DONE };
61 for (i = BUS; i < DONE; i++) {
73 f->bus_num = strtol(p, NULL, 10);
76 f->addr = strtol(p, NULL, 10);
79 f->vendor_id = strtol(p, NULL, 16);
82 f->product_id = strtol(p, NULL, 16);
88 fprintf(stderr, "husb: invalid auto filter spec %s\n", spec);
95 USBDevice *usb_host_device_open(USBBus *bus, const char *devname)
97 struct USBAutoFilter filter;
101 dev = usb_create(bus, "usb-host");
103 if (strstr(devname, "auto:")) {
104 if (parse_filter(devname, &filter) < 0) {
108 p = strchr(devname, '.');
110 filter.bus_num = strtoul(devname, NULL, 0);
111 filter.addr = strtoul(p + 1, NULL, 0);
112 filter.vendor_id = 0;
113 filter.product_id = 0;
115 p = strchr(devname, ':');
119 filter.vendor_id = strtoul(devname, NULL, 16);
120 filter.product_id = strtoul(p + 1, NULL, 16);
127 qdev_prop_set_uint32(&dev->qdev, "hostbus", filter.bus_num);
128 qdev_prop_set_uint32(&dev->qdev, "hostaddr", filter.addr);
129 qdev_prop_set_uint32(&dev->qdev, "vendorid", filter.vendor_id);
130 qdev_prop_set_uint32(&dev->qdev, "productid", filter.product_id);
131 qdev_init_nofail(&dev->qdev);
135 object_unparent(OBJECT(dev));
139 static void usb_host_register_types(void)
141 usb_legacy_register("usb-host", "host", usb_host_device_open);
144 type_init(usb_host_register_types)