mirror of
https://github.com/qemu/qemu.git
synced 2024-12-06 02:03:38 +08:00
3bc36a401e
Most LegacyUSBFactory usbdevice_init() methods realize with qdev_init_nofail(), even though their caller usbdevice_create() can handle failure. Okay if it really can't fail (I didn't check), but somewhat brittle. usb_msd_init() and usb_bt_init() call qdev_init(). The latter additionally reports an error when qdev_init() fails. Realization failure produces multiple error reports: a specific one from qdev_init(), and generic ones from usb_bt_init(), usb_create_simple(), usbdevice_create() and usb_parse(). Remove realization from the usbdevice_init() methods. Realize in usbdevice_create(), and produce exactly one error message there. You still get another one from usb_parse(). Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
144 lines
4.1 KiB
C
144 lines
4.1 KiB
C
/*
|
|
* Linux host USB redirector
|
|
*
|
|
* Copyright (c) 2005 Fabrice Bellard
|
|
*
|
|
* Copyright (c) 2008 Max Krasnyansky
|
|
* Support for host device auto connect & disconnect
|
|
* Major rewrite to support fully async operation
|
|
*
|
|
* Copyright 2008 TJ <linux@tjworld.net>
|
|
* Added flexible support for /dev/bus/usb /sys/bus/usb/devices in addition
|
|
* to the legacy /proc/bus/usb USB device discovery and handling
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
* of this software and associated documentation files (the "Software"), to deal
|
|
* in the Software without restriction, including without limitation the rights
|
|
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
* copies of the Software, and to permit persons to whom the Software is
|
|
* furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in
|
|
* all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
* THE SOFTWARE.
|
|
*/
|
|
|
|
#include "qemu-common.h"
|
|
#include "hw/usb.h"
|
|
#include "hw/usb/host.h"
|
|
|
|
/*
|
|
* Autoconnect filter
|
|
* Format:
|
|
* auto:bus:dev[:vid:pid]
|
|
* auto:bus.dev[:vid:pid]
|
|
*
|
|
* bus - bus number (dec, * means any)
|
|
* dev - device number (dec, * means any)
|
|
* vid - vendor id (hex, * means any)
|
|
* pid - product id (hex, * means any)
|
|
*
|
|
* See 'lsusb' output.
|
|
*/
|
|
static int parse_filter(const char *spec, struct USBAutoFilter *f)
|
|
{
|
|
enum { BUS, DEV, VID, PID, DONE };
|
|
const char *p = spec;
|
|
int i;
|
|
|
|
f->bus_num = 0;
|
|
f->addr = 0;
|
|
f->vendor_id = 0;
|
|
f->product_id = 0;
|
|
|
|
for (i = BUS; i < DONE; i++) {
|
|
p = strpbrk(p, ":.");
|
|
if (!p) {
|
|
break;
|
|
}
|
|
p++;
|
|
|
|
if (*p == '*') {
|
|
continue;
|
|
}
|
|
switch (i) {
|
|
case BUS:
|
|
f->bus_num = strtol(p, NULL, 10);
|
|
break;
|
|
case DEV:
|
|
f->addr = strtol(p, NULL, 10);
|
|
break;
|
|
case VID:
|
|
f->vendor_id = strtol(p, NULL, 16);
|
|
break;
|
|
case PID:
|
|
f->product_id = strtol(p, NULL, 16);
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (i < DEV) {
|
|
fprintf(stderr, "husb: invalid auto filter spec %s\n", spec);
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
USBDevice *usb_host_device_open(USBBus *bus, const char *devname)
|
|
{
|
|
struct USBAutoFilter filter;
|
|
USBDevice *dev;
|
|
char *p;
|
|
|
|
dev = usb_create(bus, "usb-host");
|
|
|
|
if (strstr(devname, "auto:")) {
|
|
if (parse_filter(devname, &filter) < 0) {
|
|
goto fail;
|
|
}
|
|
} else {
|
|
p = strchr(devname, '.');
|
|
if (p) {
|
|
filter.bus_num = strtoul(devname, NULL, 0);
|
|
filter.addr = strtoul(p + 1, NULL, 0);
|
|
filter.vendor_id = 0;
|
|
filter.product_id = 0;
|
|
} else {
|
|
p = strchr(devname, ':');
|
|
if (p) {
|
|
filter.bus_num = 0;
|
|
filter.addr = 0;
|
|
filter.vendor_id = strtoul(devname, NULL, 16);
|
|
filter.product_id = strtoul(p + 1, NULL, 16);
|
|
} else {
|
|
goto fail;
|
|
}
|
|
}
|
|
}
|
|
|
|
qdev_prop_set_uint32(&dev->qdev, "hostbus", filter.bus_num);
|
|
qdev_prop_set_uint32(&dev->qdev, "hostaddr", filter.addr);
|
|
qdev_prop_set_uint32(&dev->qdev, "vendorid", filter.vendor_id);
|
|
qdev_prop_set_uint32(&dev->qdev, "productid", filter.product_id);
|
|
return dev;
|
|
|
|
fail:
|
|
object_unparent(OBJECT(dev));
|
|
return NULL;
|
|
}
|
|
|
|
static void usb_host_register_types(void)
|
|
{
|
|
usb_legacy_register("usb-host", "host", usb_host_device_open);
|
|
}
|
|
|
|
type_init(usb_host_register_types)
|