summaryrefslogtreecommitdiffstats
path: root/qemu/hw/usb/host-legacy.c
diff options
context:
space:
mode:
Diffstat (limited to 'qemu/hw/usb/host-legacy.c')
-rw-r--r--qemu/hw/usb/host-legacy.c143
1 files changed, 143 insertions, 0 deletions
diff --git a/qemu/hw/usb/host-legacy.c b/qemu/hw/usb/host-legacy.c
new file mode 100644
index 000000000..422ed9a65
--- /dev/null
+++ b/qemu/hw/usb/host-legacy.c
@@ -0,0 +1,143 @@
+/*
+ * 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)