| 1 | #include "qemu/osdep.h" |
| 2 | #include "hw/core/qdev-properties.h" |
| 3 | #include "hw/usb/usb.h" |
| 4 | #include "qapi/error.h" |
| 5 | #include "qapi/qapi-commands-machine.h" |
| 6 | #include "qapi/type-helpers.h" |
| 7 | #include "qemu/error-report.h" |
| 8 | #include "qemu/module.h" |
| 9 | #include "system/system.h" |
| 10 | #include "migration/vmstate.h" |
| 11 | #include "monitor/monitor.h" |
| 12 | #include "monitor/hmp.h" |
| 13 | #include "trace.h" |
| 14 | #include "qemu/cutils.h" |
| 15 | |
| 16 | #ifdef CONFIG_HMP |
| 17 | static void usb_bus_dev_print(MonitorHMP *hmp, DeviceState *qdev, int indent); |
| 18 | #endif |
| 19 | |
| 20 | static char *usb_get_dev_path(DeviceState *dev); |
| 21 | static char *usb_get_fw_dev_path(DeviceState *qdev); |
| 22 | static void usb_qdev_unrealize(DeviceState *qdev); |
| 23 | |
| 24 | static const Property usb_props[] = { |
| 25 | DEFINE_PROP_STRING("port", USBDevice, port_path), |
| 26 | DEFINE_PROP_STRING("serial", USBDevice, serial), |
| 27 | DEFINE_PROP_BIT("msos-desc", USBDevice, flags, |
| 28 | USB_DEV_FLAG_MSOS_DESC_ENABLE, true), |
| 29 | DEFINE_PROP_STRING("pcap", USBDevice, pcap_filename), |
| 30 | }; |
| 31 | |
| 32 | static void usb_bus_class_init(ObjectClass *klass, const void *data) |
| 33 | { |
| 34 | BusClass *k = BUS_CLASS(klass); |
| 35 | HotplugHandlerClass *hc = HOTPLUG_HANDLER_CLASS(klass); |
| 36 | |
| 37 | #ifdef CONFIG_HMP |
| 38 | k->print_dev = usb_bus_dev_print; |
| 39 | #endif |
| 40 | k->get_dev_path = usb_get_dev_path; |
| 41 | k->get_fw_dev_path = usb_get_fw_dev_path; |
| 42 | hc->unplug = qdev_simple_device_unplug_cb; |
| 43 | } |
| 44 | |
| 45 | static const TypeInfo usb_bus_info = { |
| 46 | .name = TYPE_USB_BUS, |
| 47 | .parent = TYPE_BUS, |
| 48 | .instance_size = sizeof(USBBus), |
| 49 | .class_init = usb_bus_class_init, |
| 50 | .interfaces = (const InterfaceInfo[]) { |
| 51 | { TYPE_HOTPLUG_HANDLER }, |
| 52 | { } |
| 53 | } |
| 54 | }; |
| 55 | |
| 56 | static int next_usb_bus = 0; |
| 57 | static QTAILQ_HEAD(, USBBus) busses = QTAILQ_HEAD_INITIALIZER(busses); |
| 58 | |
| 59 | static int usb_device_post_load(void *opaque, int version_id) |
| 60 | { |
| 61 | USBDevice *dev = opaque; |
| 62 | |
| 63 | if (dev->state == USB_STATE_NOTATTACHED) { |
| 64 | dev->attached = false; |
| 65 | } else { |
| 66 | dev->attached = true; |
| 67 | } |
| 68 | return 0; |
| 69 | } |
| 70 | |
| 71 | const VMStateDescription vmstate_usb_device = { |
| 72 | .name = "USBDevice", |
| 73 | .version_id = 1, |
| 74 | .minimum_version_id = 1, |
| 75 | .post_load = usb_device_post_load, |
| 76 | .fields = (const VMStateField[]) { |
| 77 | VMSTATE_UINT8(addr, USBDevice), |
| 78 | VMSTATE_INT32(state, USBDevice), |
| 79 | VMSTATE_INT32(remote_wakeup, USBDevice), |
| 80 | VMSTATE_INT32(setup_state, USBDevice), |
| 81 | VMSTATE_INT32(setup_len, USBDevice), |
| 82 | VMSTATE_INT32(setup_index, USBDevice), |
| 83 | VMSTATE_UINT8_ARRAY(setup_buf, USBDevice, 8), |
| 84 | VMSTATE_END_OF_LIST(), |
| 85 | } |
| 86 | }; |
| 87 | |
| 88 | void usb_bus_new(USBBus *bus, size_t bus_size, |
| 89 | USBBusOps *ops, DeviceState *host) |
| 90 | { |
| 91 | qbus_init(bus, bus_size, TYPE_USB_BUS, host, NULL); |
| 92 | qbus_set_bus_hotplug_handler(BUS(bus)); |
| 93 | bus->ops = ops; |
| 94 | bus->busnr = next_usb_bus++; |
| 95 | QTAILQ_INIT(&bus->free); |
| 96 | QTAILQ_INIT(&bus->used); |
| 97 | QTAILQ_INSERT_TAIL(&busses, bus, next); |
| 98 | } |
| 99 | |
| 100 | void usb_bus_release(USBBus *bus) |
| 101 | { |
| 102 | assert(next_usb_bus > 0); |
| 103 | |
| 104 | QTAILQ_REMOVE(&busses, bus, next); |
| 105 | } |
| 106 | |
| 107 | static void usb_device_realize(USBDevice *dev, Error **errp) |
| 108 | { |
| 109 | USBDeviceClass *klass = USB_DEVICE_GET_CLASS(dev); |
| 110 | |
| 111 | if (klass->realize) { |
| 112 | klass->realize(dev, errp); |
| 113 | } |
| 114 | } |
| 115 | |
| 116 | USBDevice *usb_device_find_device(USBDevice *dev, uint8_t addr) |
| 117 | { |
| 118 | USBDeviceClass *klass = USB_DEVICE_GET_CLASS(dev); |
| 119 | if (klass->find_device) { |
| 120 | return klass->find_device(dev, addr); |
| 121 | } |
| 122 | return NULL; |
| 123 | } |
| 124 | |
| 125 | static void usb_device_unrealize(USBDevice *dev) |
| 126 | { |
| 127 | USBDeviceClass *klass = USB_DEVICE_GET_CLASS(dev); |
| 128 | |
| 129 | if (klass->unrealize) { |
| 130 | klass->unrealize(dev); |
| 131 | } |
| 132 | } |
| 133 | |
| 134 | void usb_device_cancel_packet(USBDevice *dev, USBPacket *p) |
| 135 | { |
| 136 | USBDeviceClass *klass = USB_DEVICE_GET_CLASS(dev); |
| 137 | if (klass->cancel_packet) { |
| 138 | klass->cancel_packet(dev, p); |
| 139 | } |
| 140 | } |
| 141 | |
| 142 | void usb_device_handle_attach(USBDevice *dev) |
| 143 | { |
| 144 | USBDeviceClass *klass = USB_DEVICE_GET_CLASS(dev); |
| 145 | if (klass->handle_attach) { |
| 146 | klass->handle_attach(dev); |
| 147 | } |
| 148 | } |
| 149 | |
| 150 | void usb_device_handle_reset(USBDevice *dev) |
| 151 | { |
| 152 | USBDeviceClass *klass = USB_DEVICE_GET_CLASS(dev); |
| 153 | if (klass->handle_reset) { |
| 154 | klass->handle_reset(dev); |
| 155 | } |
| 156 | } |
| 157 | |
| 158 | void usb_device_handle_control(USBDevice *dev, USBPacket *p, int request, |
| 159 | int value, int index, int length, uint8_t *data) |
| 160 | { |
| 161 | USBDeviceClass *klass = USB_DEVICE_GET_CLASS(dev); |
| 162 | if (klass->handle_control) { |
| 163 | klass->handle_control(dev, p, request, value, index, length, data); |
| 164 | } |
| 165 | } |
| 166 | |
| 167 | void usb_device_handle_data(USBDevice *dev, USBPacket *p) |
| 168 | { |
| 169 | USBDeviceClass *klass = USB_DEVICE_GET_CLASS(dev); |
| 170 | if (klass->handle_data) { |
| 171 | klass->handle_data(dev, p); |
| 172 | } |
| 173 | } |
| 174 | |
| 175 | const char *usb_device_get_product_desc(USBDevice *dev) |
| 176 | { |
| 177 | USBDeviceClass *klass = USB_DEVICE_GET_CLASS(dev); |
| 178 | return klass->product_desc; |
| 179 | } |
| 180 | |
| 181 | const USBDesc *usb_device_get_usb_desc(USBDevice *dev) |
| 182 | { |
| 183 | USBDeviceClass *klass = USB_DEVICE_GET_CLASS(dev); |
| 184 | if (dev->usb_desc) { |
| 185 | return dev->usb_desc; |
| 186 | } |
| 187 | return klass->usb_desc; |
| 188 | } |
| 189 | |
| 190 | void usb_device_set_interface(USBDevice *dev, int interface, |
| 191 | int alt_old, int alt_new) |
| 192 | { |
| 193 | USBDeviceClass *klass = USB_DEVICE_GET_CLASS(dev); |
| 194 | if (klass->set_interface) { |
| 195 | klass->set_interface(dev, interface, alt_old, alt_new); |
| 196 | } |
| 197 | } |
| 198 | |
| 199 | void usb_device_flush_ep_queue(USBDevice *dev, USBEndpoint *ep) |
| 200 | { |
| 201 | USBDeviceClass *klass = USB_DEVICE_GET_CLASS(dev); |
| 202 | if (klass->flush_ep_queue) { |
| 203 | klass->flush_ep_queue(dev, ep); |
| 204 | } |
| 205 | } |
| 206 | |
| 207 | void usb_device_ep_stopped(USBDevice *dev, USBEndpoint *ep) |
| 208 | { |
| 209 | USBDeviceClass *klass = USB_DEVICE_GET_CLASS(dev); |
| 210 | if (klass->ep_stopped) { |
| 211 | klass->ep_stopped(dev, ep); |
| 212 | } |
| 213 | } |
| 214 | |
| 215 | int usb_device_alloc_streams(USBDevice *dev, USBEndpoint **eps, int nr_eps, |
| 216 | int streams) |
| 217 | { |
| 218 | USBDeviceClass *klass = USB_DEVICE_GET_CLASS(dev); |
| 219 | if (klass->alloc_streams) { |
| 220 | return klass->alloc_streams(dev, eps, nr_eps, streams); |
| 221 | } |
| 222 | return 0; |
| 223 | } |
| 224 | |
| 225 | void usb_device_free_streams(USBDevice *dev, USBEndpoint **eps, int nr_eps) |
| 226 | { |
| 227 | USBDeviceClass *klass = USB_DEVICE_GET_CLASS(dev); |
| 228 | if (klass->free_streams) { |
| 229 | klass->free_streams(dev, eps, nr_eps); |
| 230 | } |
| 231 | } |
| 232 | |
| 233 | static void usb_qdev_realize(DeviceState *qdev, Error **errp) |
| 234 | { |
| 235 | USBDevice *dev = USB_DEVICE(qdev); |
| 236 | Error *local_err = NULL; |
| 237 | |
| 238 | pstrcpy(dev->product_desc, sizeof(dev->product_desc), |
| 239 | usb_device_get_product_desc(dev)); |
| 240 | dev->auto_attach = 1; |
| 241 | QLIST_INIT(&dev->strings); |
| 242 | usb_ep_init(dev); |
| 243 | |
| 244 | usb_claim_port(dev, &local_err); |
| 245 | if (local_err) { |
| 246 | error_propagate(errp, local_err); |
| 247 | return; |
| 248 | } |
| 249 | |
| 250 | usb_device_realize(dev, &local_err); |
| 251 | if (local_err) { |
| 252 | usb_release_port(dev); |
| 253 | error_propagate(errp, local_err); |
| 254 | return; |
| 255 | } |
| 256 | |
| 257 | if (dev->auto_attach) { |
| 258 | usb_device_attach(dev, &local_err); |
| 259 | if (local_err) { |
| 260 | usb_qdev_unrealize(qdev); |
| 261 | error_propagate(errp, local_err); |
| 262 | return; |
| 263 | } |
| 264 | } |
| 265 | |
| 266 | if (dev->pcap_filename) { |
| 267 | int fd = qemu_create(dev->pcap_filename, |
| 268 | O_WRONLY | O_TRUNC | O_BINARY, 0666, errp); |
| 269 | if (fd < 0) { |
| 270 | usb_qdev_unrealize(qdev); |
| 271 | return; |
| 272 | } |
| 273 | dev->pcap = fdopen(fd, "wb"); |
| 274 | usb_pcap_init(dev->pcap); |
| 275 | } |
| 276 | } |
| 277 | |
| 278 | static void usb_qdev_unrealize(DeviceState *qdev) |
| 279 | { |
| 280 | USBDevice *dev = USB_DEVICE(qdev); |
| 281 | USBDescString *s, *next; |
| 282 | |
| 283 | QLIST_FOREACH_SAFE(s, &dev->strings, next, next) { |
| 284 | QLIST_REMOVE(s, next); |
| 285 | g_free(s->str); |
| 286 | g_free(s); |
| 287 | } |
| 288 | |
| 289 | if (dev->pcap) { |
| 290 | fclose(dev->pcap); |
| 291 | } |
| 292 | |
| 293 | if (dev->attached) { |
| 294 | usb_device_detach(dev); |
| 295 | } |
| 296 | usb_device_unrealize(dev); |
| 297 | if (dev->port) { |
| 298 | usb_release_port(dev); |
| 299 | } |
| 300 | } |
| 301 | |
| 302 | typedef struct LegacyUSBFactory |
| 303 | { |
| 304 | const char *name; |
| 305 | const char *usbdevice_name; |
| 306 | USBDevice *(*usbdevice_init)(void); |
| 307 | } LegacyUSBFactory; |
| 308 | |
| 309 | static GSList *legacy_usb_factory; |
| 310 | |
| 311 | void usb_legacy_register(const char *typename, const char *usbdevice_name, |
| 312 | USBDevice *(*usbdevice_init)(void)) |
| 313 | { |
| 314 | if (usbdevice_name) { |
| 315 | LegacyUSBFactory *f = g_malloc0(sizeof(*f)); |
| 316 | f->name = typename; |
| 317 | f->usbdevice_name = usbdevice_name; |
| 318 | f->usbdevice_init = usbdevice_init; |
| 319 | legacy_usb_factory = g_slist_append(legacy_usb_factory, f); |
| 320 | } |
| 321 | } |
| 322 | |
| 323 | static void usb_fill_port(USBPort *port, void *opaque, int index, |
| 324 | USBPortOps *ops, int speedmask) |
| 325 | { |
| 326 | port->opaque = opaque; |
| 327 | port->index = index; |
| 328 | port->ops = ops; |
| 329 | port->speedmask = speedmask; |
| 330 | usb_port_location(port, NULL, index + 1); |
| 331 | } |
| 332 | |
| 333 | void usb_register_port(USBBus *bus, USBPort *port, void *opaque, int index, |
| 334 | USBPortOps *ops, int speedmask) |
| 335 | { |
| 336 | usb_fill_port(port, opaque, index, ops, speedmask); |
| 337 | QTAILQ_INSERT_TAIL(&bus->free, port, next); |
| 338 | bus->nfree++; |
| 339 | } |
| 340 | |
| 341 | void usb_register_companion(const char *masterbus, USBPort *ports[], |
| 342 | uint32_t portcount, uint32_t firstport, |
| 343 | void *opaque, USBPortOps *ops, int speedmask, |
| 344 | Error **errp) |
| 345 | { |
| 346 | USBBus *bus; |
| 347 | int i; |
| 348 | |
| 349 | QTAILQ_FOREACH(bus, &busses, next) { |
| 350 | if (strcmp(bus->qbus.name, masterbus) == 0) { |
| 351 | break; |
| 352 | } |
| 353 | } |
| 354 | |
| 355 | if (!bus) { |
| 356 | error_setg(errp, "USB bus '%s' not found", masterbus); |
| 357 | return; |
| 358 | } |
| 359 | if (!bus->ops->register_companion) { |
| 360 | error_setg(errp, "Can't use USB bus '%s' as masterbus," |
| 361 | " it doesn't support companion controllers", |
| 362 | masterbus); |
| 363 | return; |
| 364 | } |
| 365 | |
| 366 | for (i = 0; i < portcount; i++) { |
| 367 | usb_fill_port(ports[i], opaque, i, ops, speedmask); |
| 368 | } |
| 369 | |
| 370 | bus->ops->register_companion(bus, ports, portcount, firstport, errp); |
| 371 | } |
| 372 | |
| 373 | void usb_port_location(USBPort *downstream, USBPort *upstream, int portnr) |
| 374 | { |
| 375 | if (upstream) { |
| 376 | int l = snprintf(downstream->path, sizeof(downstream->path), "%s.%d", |
| 377 | upstream->path, portnr); |
| 378 | /* Max string is nn.nn.nn.nn.nn, which fits in 16 bytes */ |
| 379 | assert(l < sizeof(downstream->path)); |
| 380 | downstream->hubcount = upstream->hubcount + 1; |
| 381 | } else { |
| 382 | snprintf(downstream->path, sizeof(downstream->path), "%d", portnr); |
| 383 | downstream->hubcount = 0; |
| 384 | } |
| 385 | } |
| 386 | |
| 387 | void usb_unregister_port(USBBus *bus, USBPort *port) |
| 388 | { |
| 389 | if (port->dev) { |
| 390 | object_unparent(OBJECT(port->dev)); |
| 391 | } |
| 392 | QTAILQ_REMOVE(&bus->free, port, next); |
| 393 | bus->nfree--; |
| 394 | } |
| 395 | |
| 396 | void usb_claim_port(USBDevice *dev, Error **errp) |
| 397 | { |
| 398 | USBBus *bus = usb_bus_from_device(dev); |
| 399 | USBPort *port; |
| 400 | USBDevice *hub; |
| 401 | |
| 402 | assert(dev->port == NULL); |
| 403 | |
| 404 | if (dev->port_path) { |
| 405 | QTAILQ_FOREACH(port, &bus->free, next) { |
| 406 | if (strcmp(port->path, dev->port_path) == 0) { |
| 407 | break; |
| 408 | } |
| 409 | } |
| 410 | if (port == NULL) { |
| 411 | error_setg(errp, "usb port %s (bus %s) not found (in use?)", |
| 412 | dev->port_path, bus->qbus.name); |
| 413 | return; |
| 414 | } |
| 415 | } else { |
| 416 | if (bus->nfree == 1 && strcmp(object_get_typename(OBJECT(dev)), "usb-hub") != 0) { |
| 417 | /* Create a new hub and chain it on */ |
| 418 | hub = USB_DEVICE(qdev_try_new("usb-hub")); |
| 419 | if (hub) { |
| 420 | usb_realize_and_unref(hub, bus, NULL); |
| 421 | } |
| 422 | } |
| 423 | if (bus->nfree == 0) { |
| 424 | error_setg(errp, "tried to attach usb device %s to a bus " |
| 425 | "with no free ports", dev->product_desc); |
| 426 | return; |
| 427 | } |
| 428 | port = QTAILQ_FIRST(&bus->free); |
| 429 | } |
| 430 | trace_usb_port_claim(bus->busnr, port->path); |
| 431 | |
| 432 | QTAILQ_REMOVE(&bus->free, port, next); |
| 433 | bus->nfree--; |
| 434 | |
| 435 | dev->port = port; |
| 436 | port->dev = dev; |
| 437 | |
| 438 | QTAILQ_INSERT_TAIL(&bus->used, port, next); |
| 439 | bus->nused++; |
| 440 | } |
| 441 | |
| 442 | void usb_release_port(USBDevice *dev) |
| 443 | { |
| 444 | USBBus *bus = usb_bus_from_device(dev); |
| 445 | USBPort *port = dev->port; |
| 446 | |
| 447 | assert(port != NULL); |
| 448 | trace_usb_port_release(bus->busnr, port->path); |
| 449 | |
| 450 | QTAILQ_REMOVE(&bus->used, port, next); |
| 451 | bus->nused--; |
| 452 | |
| 453 | dev->port = NULL; |
| 454 | port->dev = NULL; |
| 455 | |
| 456 | QTAILQ_INSERT_TAIL(&bus->free, port, next); |
| 457 | bus->nfree++; |
| 458 | } |
| 459 | |
| 460 | static void usb_mask_to_str(char *dest, size_t size, |
| 461 | unsigned int speedmask) |
| 462 | { |
| 463 | static const struct { |
| 464 | unsigned int mask; |
| 465 | const char *name; |
| 466 | } speeds[] = { |
| 467 | { .mask = USB_SPEED_MASK_FULL, .name = "full" }, |
| 468 | { .mask = USB_SPEED_MASK_HIGH, .name = "high" }, |
| 469 | { .mask = USB_SPEED_MASK_SUPER, .name = "super" }, |
| 470 | }; |
| 471 | int i, pos = 0; |
| 472 | |
| 473 | for (i = 0; i < ARRAY_SIZE(speeds); i++) { |
| 474 | if (speeds[i].mask & speedmask) { |
| 475 | pos += snprintf(dest + pos, size - pos, "%s%s", |
| 476 | pos ? "+" : "", |
| 477 | speeds[i].name); |
| 478 | } |
| 479 | } |
| 480 | |
| 481 | if (pos == 0) { |
| 482 | snprintf(dest, size, "unknown"); |
| 483 | } |
| 484 | } |
| 485 | |
| 486 | void usb_check_attach(USBDevice *dev, Error **errp) |
| 487 | { |
| 488 | USBBus *bus = usb_bus_from_device(dev); |
| 489 | USBPort *port = dev->port; |
| 490 | char devspeed[32], portspeed[32]; |
| 491 | |
| 492 | assert(port != NULL); |
| 493 | assert(!dev->attached); |
| 494 | usb_mask_to_str(devspeed, sizeof(devspeed), dev->speedmask); |
| 495 | usb_mask_to_str(portspeed, sizeof(portspeed), port->speedmask); |
| 496 | trace_usb_port_attach(bus->busnr, port->path, |
| 497 | devspeed, portspeed); |
| 498 | |
| 499 | if (!(port->speedmask & dev->speedmask)) { |
| 500 | error_setg(errp, "Warning: speed mismatch trying to attach" |
| 501 | " usb device \"%s\" (%s speed)" |
| 502 | " to bus \"%s\", port \"%s\" (%s speed)", |
| 503 | dev->product_desc, devspeed, |
| 504 | bus->qbus.name, port->path, portspeed); |
| 505 | return; |
| 506 | } |
| 507 | } |
| 508 | |
| 509 | void usb_device_attach(USBDevice *dev, Error **errp) |
| 510 | { |
| 511 | USBPort *port = dev->port; |
| 512 | Error *local_err = NULL; |
| 513 | |
| 514 | usb_check_attach(dev, &local_err); |
| 515 | if (local_err) { |
| 516 | error_propagate(errp, local_err); |
| 517 | return; |
| 518 | } |
| 519 | |
| 520 | dev->attached = true; |
| 521 | usb_attach(port); |
| 522 | } |
| 523 | |
| 524 | int usb_device_detach(USBDevice *dev) |
| 525 | { |
| 526 | USBBus *bus = usb_bus_from_device(dev); |
| 527 | USBPort *port = dev->port; |
| 528 | |
| 529 | assert(port != NULL); |
| 530 | assert(dev->attached); |
| 531 | trace_usb_port_detach(bus->busnr, port->path); |
| 532 | |
| 533 | usb_detach(port); |
| 534 | dev->attached = false; |
| 535 | return 0; |
| 536 | } |
| 537 | |
| 538 | static const char *usb_speed(unsigned int speed) |
| 539 | { |
| 540 | static const char *txt[] = { |
| 541 | [ USB_SPEED_LOW ] = "1.5", |
| 542 | [ USB_SPEED_FULL ] = "12", |
| 543 | [ USB_SPEED_HIGH ] = "480", |
| 544 | [ USB_SPEED_SUPER ] = "5000", |
| 545 | }; |
| 546 | if (speed >= ARRAY_SIZE(txt)) |
| 547 | return "?"; |
| 548 | return txt[speed]; |
| 549 | } |
| 550 | |
| 551 | #ifdef CONFIG_HMP |
| 552 | static void usb_bus_dev_print(MonitorHMP *hmp, DeviceState *qdev, int indent) |
| 553 | { |
| 554 | USBDevice *dev = USB_DEVICE(qdev); |
| 555 | USBBus *bus = usb_bus_from_device(dev); |
| 556 | |
| 557 | monitor_hmp_printf(hmp, "%*saddr %d.%d, port %s, speed %s, name %s%s\n", |
| 558 | indent, "", bus->busnr, dev->addr, |
| 559 | dev->port ? dev->port->path : "-", |
| 560 | usb_speed(dev->speed), dev->product_desc, |
| 561 | dev->attached ? ", attached" : ""); |
| 562 | } |
| 563 | #endif |
| 564 | |
| 565 | static char *usb_get_dev_path(DeviceState *qdev) |
| 566 | { |
| 567 | USBDevice *dev = USB_DEVICE(qdev); |
| 568 | DeviceState *hcd = qdev->parent_bus->parent; |
| 569 | char *id = qdev_get_dev_path(hcd); |
| 570 | |
| 571 | if (id) { |
| 572 | char *ret = g_strdup_printf("%s/%s", id, dev->port->path); |
| 573 | g_free(id); |
| 574 | return ret; |
| 575 | } else { |
| 576 | return g_strdup(dev->port->path); |
| 577 | } |
| 578 | } |
| 579 | |
| 580 | static char *usb_get_fw_dev_path(DeviceState *qdev) |
| 581 | { |
| 582 | USBDevice *dev = USB_DEVICE(qdev); |
| 583 | char *fw_path, *in; |
| 584 | ssize_t pos = 0, fw_len; |
| 585 | long nr; |
| 586 | |
| 587 | fw_len = 32 + strlen(dev->port->path) * 6; |
| 588 | fw_path = g_malloc(fw_len); |
| 589 | in = dev->port->path; |
| 590 | while (fw_len - pos > 0) { |
| 591 | nr = strtol(in, &in, 10); |
| 592 | if (in[0] == '.') { |
| 593 | /* some hub between root port and device */ |
| 594 | pos += snprintf(fw_path + pos, fw_len - pos, "hub@%lx/", nr); |
| 595 | in++; |
| 596 | } else { |
| 597 | /* the device itself */ |
| 598 | snprintf(fw_path + pos, fw_len - pos, "%s@%lx", |
| 599 | qdev_fw_name(qdev), nr); |
| 600 | break; |
| 601 | } |
| 602 | } |
| 603 | return fw_path; |
| 604 | } |
| 605 | |
| 606 | HumanReadableText *qmp_x_query_usb(Error **errp) |
| 607 | { |
| 608 | g_autoptr(GString) buf = g_string_new(""); |
| 609 | USBBus *bus; |
| 610 | USBDevice *dev; |
| 611 | USBPort *port; |
| 612 | |
| 613 | if (QTAILQ_EMPTY(&busses)) { |
| 614 | error_setg(errp, "USB support not enabled"); |
| 615 | return NULL; |
| 616 | } |
| 617 | |
| 618 | QTAILQ_FOREACH(bus, &busses, next) { |
| 619 | QTAILQ_FOREACH(port, &bus->used, next) { |
| 620 | dev = port->dev; |
| 621 | if (!dev) |
| 622 | continue; |
| 623 | g_string_append_printf(buf, |
| 624 | " Device %d.%d, Port %s, Speed %s Mb/s, " |
| 625 | "Product %s%s%s\n", |
| 626 | bus->busnr, dev->addr, port->path, |
| 627 | usb_speed(dev->speed), dev->product_desc, |
| 628 | dev->qdev.id ? ", ID: " : "", |
| 629 | dev->qdev.id ?: ""); |
| 630 | } |
| 631 | } |
| 632 | |
| 633 | return human_readable_text_from_str(buf); |
| 634 | } |
| 635 | |
| 636 | /* handle legacy -usbdevice cmd line option */ |
| 637 | USBDevice *usbdevice_create(const char *driver) |
| 638 | { |
| 639 | USBBus *bus = QTAILQ_FIRST(&busses); |
| 640 | LegacyUSBFactory *f = NULL; |
| 641 | Error *err = NULL; |
| 642 | GSList *i; |
| 643 | USBDevice *dev; |
| 644 | |
| 645 | if (strchr(driver, ':')) { |
| 646 | error_report("usbdevice parameters are not supported anymore"); |
| 647 | return NULL; |
| 648 | } |
| 649 | |
| 650 | for (i = legacy_usb_factory; i; i = i->next) { |
| 651 | f = i->data; |
| 652 | if (strcmp(f->usbdevice_name, driver) == 0) { |
| 653 | break; |
| 654 | } |
| 655 | } |
| 656 | if (i == NULL) { |
| 657 | #if 0 |
| 658 | /* no error because some drivers are not converted (yet) */ |
| 659 | error_report("usbdevice %s not found", driver); |
| 660 | #endif |
| 661 | return NULL; |
| 662 | } |
| 663 | |
| 664 | if (!bus) { |
| 665 | error_report("Error: no usb bus to attach usbdevice %s, " |
| 666 | "please try -machine usb=on and check that " |
| 667 | "the machine model supports USB", driver); |
| 668 | return NULL; |
| 669 | } |
| 670 | |
| 671 | dev = f->usbdevice_init ? f->usbdevice_init() |
| 672 | : USB_DEVICE(qdev_new(f->name)); |
| 673 | if (!dev) { |
| 674 | error_report("Failed to create USB device '%s'", f->name); |
| 675 | return NULL; |
| 676 | } |
| 677 | if (!usb_realize_and_unref(dev, bus, &err)) { |
| 678 | error_reportf_err(err, "Failed to initialize USB device '%s': ", |
| 679 | f->name); |
| 680 | object_unparent(OBJECT(dev)); |
| 681 | return NULL; |
| 682 | } |
| 683 | return dev; |
| 684 | } |
| 685 | |
| 686 | static bool usb_get_attached(Object *obj, Error **errp) |
| 687 | { |
| 688 | USBDevice *dev = USB_DEVICE(obj); |
| 689 | |
| 690 | return dev->attached; |
| 691 | } |
| 692 | |
| 693 | static void usb_set_attached(Object *obj, bool value, Error **errp) |
| 694 | { |
| 695 | USBDevice *dev = USB_DEVICE(obj); |
| 696 | |
| 697 | if (dev->attached == value) { |
| 698 | return; |
| 699 | } |
| 700 | |
| 701 | if (value) { |
| 702 | usb_device_attach(dev, errp); |
| 703 | } else { |
| 704 | usb_device_detach(dev); |
| 705 | } |
| 706 | } |
| 707 | |
| 708 | static void usb_device_instance_init(Object *obj) |
| 709 | { |
| 710 | USBDevice *dev = USB_DEVICE(obj); |
| 711 | USBDeviceClass *klass = USB_DEVICE_GET_CLASS(dev); |
| 712 | |
| 713 | if (klass->attached_settable) { |
| 714 | object_property_add_bool(obj, "attached", |
| 715 | usb_get_attached, usb_set_attached); |
| 716 | } else { |
| 717 | object_property_add_bool(obj, "attached", |
| 718 | usb_get_attached, NULL); |
| 719 | } |
| 720 | } |
| 721 | |
| 722 | static void usb_device_class_init(ObjectClass *klass, const void *data) |
| 723 | { |
| 724 | DeviceClass *k = DEVICE_CLASS(klass); |
| 725 | k->bus_type = TYPE_USB_BUS; |
| 726 | k->realize = usb_qdev_realize; |
| 727 | k->unrealize = usb_qdev_unrealize; |
| 728 | device_class_set_props(k, usb_props); |
| 729 | } |
| 730 | |
| 731 | static const TypeInfo usb_device_type_info = { |
| 732 | .name = TYPE_USB_DEVICE, |
| 733 | .parent = TYPE_DEVICE, |
| 734 | .instance_size = sizeof(USBDevice), |
| 735 | .instance_init = usb_device_instance_init, |
| 736 | .abstract = true, |
| 737 | .class_size = sizeof(USBDeviceClass), |
| 738 | .class_init = usb_device_class_init, |
| 739 | }; |
| 740 | |
| 741 | static void usb_register_types(void) |
| 742 | { |
| 743 | type_register_static(&usb_bus_info); |
| 744 | type_register_static(&usb_device_type_info); |
| 745 | } |
| 746 | |
| 747 | type_init(usb_register_types) |