8 static void usb_bus_dev_print(Monitor *mon, DeviceState *qdev, int indent);
10 static char *usb_get_dev_path(DeviceState *dev);
11 static char *usb_get_fw_dev_path(DeviceState *qdev);
12 static int usb_qdev_exit(DeviceState *qdev);
14 static struct BusInfo usb_bus_info = {
16 .size = sizeof(USBBus),
17 .print_dev = usb_bus_dev_print,
18 .get_dev_path = usb_get_dev_path,
19 .get_fw_dev_path = usb_get_fw_dev_path,
20 .props = (Property[]) {
21 DEFINE_PROP_STRING("port", USBDevice, port_path),
22 DEFINE_PROP_END_OF_LIST()
25 static int next_usb_bus = 0;
26 static QTAILQ_HEAD(, USBBus) busses = QTAILQ_HEAD_INITIALIZER(busses);
28 const VMStateDescription vmstate_usb_device = {
31 .minimum_version_id = 1,
32 .fields = (VMStateField []) {
33 VMSTATE_UINT8(addr, USBDevice),
34 VMSTATE_INT32(state, USBDevice),
35 VMSTATE_INT32(remote_wakeup, USBDevice),
36 VMSTATE_INT32(setup_state, USBDevice),
37 VMSTATE_INT32(setup_len, USBDevice),
38 VMSTATE_INT32(setup_index, USBDevice),
39 VMSTATE_UINT8_ARRAY(setup_buf, USBDevice, 8),
40 VMSTATE_END_OF_LIST(),
44 void usb_bus_new(USBBus *bus, USBBusOps *ops, DeviceState *host)
46 qbus_create_inplace(&bus->qbus, &usb_bus_info, host, NULL);
48 bus->busnr = next_usb_bus++;
49 bus->qbus.allow_hotplug = 1; /* Yes, we can */
50 QTAILQ_INIT(&bus->free);
51 QTAILQ_INIT(&bus->used);
52 QTAILQ_INSERT_TAIL(&busses, bus, next);
55 USBBus *usb_bus_find(int busnr)
60 return QTAILQ_FIRST(&busses);
61 QTAILQ_FOREACH(bus, &busses, next) {
62 if (bus->busnr == busnr)
68 static int usb_device_init(USBDevice *dev)
70 USBDeviceClass *klass = USB_DEVICE_GET_CLASS(dev);
72 return klass->init(dev);
77 static void usb_device_handle_destroy(USBDevice *dev)
79 USBDeviceClass *klass = USB_DEVICE_GET_CLASS(dev);
80 if (klass->handle_destroy) {
81 klass->handle_destroy(dev);
85 int usb_device_handle_packet(USBDevice *dev, USBPacket *p)
87 USBDeviceClass *klass = USB_DEVICE_GET_CLASS(dev);
88 if (klass->handle_packet) {
89 return klass->handle_packet(dev, p);
94 void usb_device_cancel_packet(USBDevice *dev, USBPacket *p)
96 USBDeviceClass *klass = USB_DEVICE_GET_CLASS(dev);
97 if (klass->cancel_packet) {
98 klass->cancel_packet(dev, p);
102 void usb_device_handle_attach(USBDevice *dev)
104 USBDeviceClass *klass = USB_DEVICE_GET_CLASS(dev);
105 if (klass->handle_attach) {
106 klass->handle_attach(dev);
110 void usb_device_handle_reset(USBDevice *dev)
112 USBDeviceClass *klass = USB_DEVICE_GET_CLASS(dev);
113 if (klass->handle_reset) {
114 klass->handle_reset(dev);
118 int usb_device_handle_control(USBDevice *dev, USBPacket *p, int request,
119 int value, int index, int length, uint8_t *data)
121 USBDeviceClass *klass = USB_DEVICE_GET_CLASS(dev);
122 if (klass->handle_control) {
123 return klass->handle_control(dev, p, request, value, index, length,
129 int usb_device_handle_data(USBDevice *dev, USBPacket *p)
131 USBDeviceClass *klass = USB_DEVICE_GET_CLASS(dev);
132 if (klass->handle_data) {
133 return klass->handle_data(dev, p);
138 const char *usb_device_get_product_desc(USBDevice *dev)
140 USBDeviceClass *klass = USB_DEVICE_GET_CLASS(dev);
141 return klass->product_desc;
144 const USBDesc *usb_device_get_usb_desc(USBDevice *dev)
146 USBDeviceClass *klass = USB_DEVICE_GET_CLASS(dev);
147 return klass->usb_desc;
150 void usb_device_set_interface(USBDevice *dev, int interface,
151 int alt_old, int alt_new)
153 USBDeviceClass *klass = USB_DEVICE_GET_CLASS(dev);
154 if (klass->set_interface) {
155 klass->set_interface(dev, interface, alt_old, alt_new);
159 static int usb_qdev_init(DeviceState *qdev)
161 USBDevice *dev = USB_DEVICE(qdev);
164 pstrcpy(dev->product_desc, sizeof(dev->product_desc),
165 usb_device_get_product_desc(dev));
166 dev->auto_attach = 1;
167 QLIST_INIT(&dev->strings);
169 rc = usb_claim_port(dev);
173 rc = usb_device_init(dev);
175 usb_release_port(dev);
178 if (dev->auto_attach) {
179 rc = usb_device_attach(dev);
188 static int usb_qdev_exit(DeviceState *qdev)
190 USBDevice *dev = USB_DEVICE(qdev);
193 usb_device_detach(dev);
195 usb_device_handle_destroy(dev);
197 usb_release_port(dev);
202 typedef struct LegacyUSBFactory
205 const char *usbdevice_name;
206 USBDevice *(*usbdevice_init)(const char *params);
209 static GSList *legacy_usb_factory;
211 void usb_legacy_register(const char *typename, const char *usbdevice_name,
212 USBDevice *(*usbdevice_init)(const char *params))
214 if (usbdevice_name) {
215 LegacyUSBFactory *f = g_malloc0(sizeof(*f));
217 f->usbdevice_name = usbdevice_name;
218 f->usbdevice_init = usbdevice_init;
219 legacy_usb_factory = g_slist_append(legacy_usb_factory, f);
223 USBDevice *usb_create(USBBus *bus, const char *name)
228 /* temporary stopgap until all usb is properly qdev-ified */
230 bus = usb_bus_find(-1);
233 error_report("%s: no bus specified, using \"%s\" for \"%s\"",
234 __FUNCTION__, bus->qbus.name, name);
238 dev = qdev_create(&bus->qbus, name);
239 return USB_DEVICE(dev);
242 USBDevice *usb_create_simple(USBBus *bus, const char *name)
244 USBDevice *dev = usb_create(bus, name);
248 error_report("Failed to create USB device '%s'", name);
251 rc = qdev_init(&dev->qdev);
253 error_report("Failed to initialize USB device '%s'", name);
259 static void usb_fill_port(USBPort *port, void *opaque, int index,
260 USBPortOps *ops, int speedmask)
262 port->opaque = opaque;
265 port->speedmask = speedmask;
266 usb_port_location(port, NULL, index + 1);
269 void usb_register_port(USBBus *bus, USBPort *port, void *opaque, int index,
270 USBPortOps *ops, int speedmask)
272 usb_fill_port(port, opaque, index, ops, speedmask);
273 QTAILQ_INSERT_TAIL(&bus->free, port, next);
277 int usb_register_companion(const char *masterbus, USBPort *ports[],
278 uint32_t portcount, uint32_t firstport,
279 void *opaque, USBPortOps *ops, int speedmask)
284 QTAILQ_FOREACH(bus, &busses, next) {
285 if (strcmp(bus->qbus.name, masterbus) == 0) {
290 if (!bus || !bus->ops->register_companion) {
291 qerror_report(QERR_INVALID_PARAMETER_VALUE, "masterbus",
294 error_printf_unless_qmp(
295 "USB bus '%s' does not allow companion controllers\n",
301 for (i = 0; i < portcount; i++) {
302 usb_fill_port(ports[i], opaque, i, ops, speedmask);
305 return bus->ops->register_companion(bus, ports, portcount, firstport);
308 void usb_port_location(USBPort *downstream, USBPort *upstream, int portnr)
311 snprintf(downstream->path, sizeof(downstream->path), "%s.%d",
312 upstream->path, portnr);
314 snprintf(downstream->path, sizeof(downstream->path), "%d", portnr);
318 void usb_unregister_port(USBBus *bus, USBPort *port)
321 qdev_free(&port->dev->qdev);
322 QTAILQ_REMOVE(&bus->free, port, next);
326 int usb_claim_port(USBDevice *dev)
328 USBBus *bus = usb_bus_from_device(dev);
331 assert(dev->port == NULL);
333 if (dev->port_path) {
334 QTAILQ_FOREACH(port, &bus->free, next) {
335 if (strcmp(port->path, dev->port_path) == 0) {
340 error_report("Error: usb port %s (bus %s) not found (in use?)",
341 dev->port_path, bus->qbus.name);
345 if (bus->nfree == 1 && strcmp(object_get_typename(OBJECT(dev)), "usb-hub") != 0) {
346 /* Create a new hub and chain it on */
347 usb_create_simple(bus, "usb-hub");
349 if (bus->nfree == 0) {
350 error_report("Error: tried to attach usb device %s to a bus "
351 "with no free ports", dev->product_desc);
354 port = QTAILQ_FIRST(&bus->free);
356 trace_usb_port_claim(bus->busnr, port->path);
358 QTAILQ_REMOVE(&bus->free, port, next);
364 QTAILQ_INSERT_TAIL(&bus->used, port, next);
369 void usb_release_port(USBDevice *dev)
371 USBBus *bus = usb_bus_from_device(dev);
372 USBPort *port = dev->port;
374 assert(port != NULL);
375 trace_usb_port_release(bus->busnr, port->path);
377 QTAILQ_REMOVE(&bus->used, port, next);
383 QTAILQ_INSERT_TAIL(&bus->free, port, next);
387 int usb_device_attach(USBDevice *dev)
389 USBBus *bus = usb_bus_from_device(dev);
390 USBPort *port = dev->port;
392 assert(port != NULL);
393 assert(!dev->attached);
394 trace_usb_port_attach(bus->busnr, port->path);
396 if (!(port->speedmask & dev->speedmask)) {
397 error_report("Warning: speed mismatch trying to attach "
398 "usb device %s to bus %s",
399 dev->product_desc, bus->qbus.name);
409 int usb_device_detach(USBDevice *dev)
411 USBBus *bus = usb_bus_from_device(dev);
412 USBPort *port = dev->port;
414 assert(port != NULL);
415 assert(dev->attached);
416 trace_usb_port_detach(bus->busnr, port->path);
423 int usb_device_delete_addr(int busnr, int addr)
429 bus = usb_bus_find(busnr);
433 QTAILQ_FOREACH(port, &bus->used, next) {
434 if (port->dev->addr == addr)
441 qdev_free(&dev->qdev);
445 static const char *usb_speed(unsigned int speed)
447 static const char *txt[] = {
448 [ USB_SPEED_LOW ] = "1.5",
449 [ USB_SPEED_FULL ] = "12",
450 [ USB_SPEED_HIGH ] = "480",
451 [ USB_SPEED_SUPER ] = "5000",
453 if (speed >= ARRAY_SIZE(txt))
458 static void usb_bus_dev_print(Monitor *mon, DeviceState *qdev, int indent)
460 USBDevice *dev = USB_DEVICE(qdev);
461 USBBus *bus = usb_bus_from_device(dev);
463 monitor_printf(mon, "%*saddr %d.%d, port %s, speed %s, name %s%s\n",
464 indent, "", bus->busnr, dev->addr,
465 dev->port ? dev->port->path : "-",
466 usb_speed(dev->speed), dev->product_desc,
467 dev->attached ? ", attached" : "");
470 static char *usb_get_dev_path(DeviceState *qdev)
472 USBDevice *dev = USB_DEVICE(qdev);
473 return g_strdup(dev->port->path);
476 static char *usb_get_fw_dev_path(DeviceState *qdev)
478 USBDevice *dev = USB_DEVICE(qdev);
480 ssize_t pos = 0, fw_len;
483 fw_len = 32 + strlen(dev->port->path) * 6;
484 fw_path = g_malloc(fw_len);
485 in = dev->port->path;
486 while (fw_len - pos > 0) {
487 nr = strtol(in, &in, 10);
489 /* some hub between root port and device */
490 pos += snprintf(fw_path + pos, fw_len - pos, "hub@%ld/", nr);
493 /* the device itself */
494 pos += snprintf(fw_path + pos, fw_len - pos, "%s@%ld",
495 qdev_fw_name(qdev), nr);
502 void usb_info(Monitor *mon)
508 if (QTAILQ_EMPTY(&busses)) {
509 monitor_printf(mon, "USB support not enabled\n");
513 QTAILQ_FOREACH(bus, &busses, next) {
514 QTAILQ_FOREACH(port, &bus->used, next) {
518 monitor_printf(mon, " Device %d.%d, Port %s, Speed %s Mb/s, Product %s\n",
519 bus->busnr, dev->addr, port->path, usb_speed(dev->speed),
525 /* handle legacy -usbdevice cmd line option */
526 USBDevice *usbdevice_create(const char *cmdline)
528 USBBus *bus = usb_bus_find(-1 /* any */);
529 LegacyUSBFactory *f = NULL;
535 params = strchr(cmdline,':');
538 len = params - cmdline;
539 if (len > sizeof(driver))
540 len = sizeof(driver);
541 pstrcpy(driver, len, cmdline);
544 pstrcpy(driver, sizeof(driver), cmdline);
547 for (i = legacy_usb_factory; i; i = i->next) {
549 if (strcmp(f->usbdevice_name, driver) == 0) {
555 /* no error because some drivers are not converted (yet) */
556 error_report("usbdevice %s not found", driver);
561 if (!f->usbdevice_init) {
563 error_report("usbdevice %s accepts no params", driver);
566 return usb_create_simple(bus, f->name);
568 return f->usbdevice_init(params);
571 static void usb_device_class_init(ObjectClass *klass, void *data)
573 DeviceClass *k = DEVICE_CLASS(klass);
574 k->bus_info = &usb_bus_info;
575 k->init = usb_qdev_init;
576 k->unplug = qdev_simple_unplug_cb;
577 k->exit = usb_qdev_exit;
580 static TypeInfo usb_device_type_info = {
581 .name = TYPE_USB_DEVICE,
582 .parent = TYPE_DEVICE,
583 .instance_size = sizeof(USBDevice),
585 .class_size = sizeof(USBDeviceClass),
586 .class_init = usb_device_class_init,
589 static void usb_register_devices(void)
591 type_register_static(&usb_device_type_info);
594 device_init(usb_register_devices);