]>
Commit | Line | Data |
---|---|---|
72899afc FB |
1 | /* |
2 | * QEMU USB HUB emulation | |
3 | * | |
4 | * Copyright (c) 2005 Fabrice Bellard | |
5 | * | |
6 | * Permission is hereby granted, free of charge, to any person obtaining a copy | |
7 | * of this software and associated documentation files (the "Software"), to deal | |
8 | * in the Software without restriction, including without limitation the rights | |
9 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
10 | * copies of the Software, and to permit persons to whom the Software is | |
11 | * furnished to do so, subject to the following conditions: | |
12 | * | |
13 | * The above copyright notice and this permission notice shall be included in | |
14 | * all copies or substantial portions of the Software. | |
15 | * | |
16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
19 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
21 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | |
22 | * THE SOFTWARE. | |
23 | */ | |
24 | #include "vl.h" | |
25 | ||
26 | //#define DEBUG | |
27 | ||
28 | #define MAX_PORTS 8 | |
29 | ||
30 | typedef struct USBHubPort { | |
31 | USBPort port; | |
32 | uint16_t wPortStatus; | |
33 | uint16_t wPortChange; | |
34 | } USBHubPort; | |
35 | ||
36 | typedef struct USBHubState { | |
37 | USBDevice dev; | |
38 | int nb_ports; | |
39 | USBHubPort ports[MAX_PORTS]; | |
40 | } USBHubState; | |
41 | ||
42 | #define ClearHubFeature (0x2000 | USB_REQ_CLEAR_FEATURE) | |
43 | #define ClearPortFeature (0x2300 | USB_REQ_CLEAR_FEATURE) | |
44 | #define GetHubDescriptor (0xa000 | USB_REQ_GET_DESCRIPTOR) | |
45 | #define GetHubStatus (0xa000 | USB_REQ_GET_STATUS) | |
46 | #define GetPortStatus (0xa300 | USB_REQ_GET_STATUS) | |
47 | #define SetHubFeature (0x2000 | USB_REQ_SET_FEATURE) | |
48 | #define SetPortFeature (0x2300 | USB_REQ_SET_FEATURE) | |
49 | ||
50 | #define PORT_STAT_CONNECTION 0x0001 | |
51 | #define PORT_STAT_ENABLE 0x0002 | |
52 | #define PORT_STAT_SUSPEND 0x0004 | |
53 | #define PORT_STAT_OVERCURRENT 0x0008 | |
54 | #define PORT_STAT_RESET 0x0010 | |
55 | #define PORT_STAT_POWER 0x0100 | |
56 | #define PORT_STAT_LOW_SPEED 0x0200 | |
57 | #define PORT_STAT_HIGH_SPEED 0x0400 | |
58 | #define PORT_STAT_TEST 0x0800 | |
59 | #define PORT_STAT_INDICATOR 0x1000 | |
60 | ||
61 | #define PORT_STAT_C_CONNECTION 0x0001 | |
62 | #define PORT_STAT_C_ENABLE 0x0002 | |
63 | #define PORT_STAT_C_SUSPEND 0x0004 | |
64 | #define PORT_STAT_C_OVERCURRENT 0x0008 | |
65 | #define PORT_STAT_C_RESET 0x0010 | |
66 | ||
67 | #define PORT_CONNECTION 0 | |
68 | #define PORT_ENABLE 1 | |
69 | #define PORT_SUSPEND 2 | |
70 | #define PORT_OVERCURRENT 3 | |
71 | #define PORT_RESET 4 | |
72 | #define PORT_POWER 8 | |
73 | #define PORT_LOWSPEED 9 | |
74 | #define PORT_HIGHSPEED 10 | |
75 | #define PORT_C_CONNECTION 16 | |
76 | #define PORT_C_ENABLE 17 | |
77 | #define PORT_C_SUSPEND 18 | |
78 | #define PORT_C_OVERCURRENT 19 | |
79 | #define PORT_C_RESET 20 | |
80 | #define PORT_TEST 21 | |
81 | #define PORT_INDICATOR 22 | |
82 | ||
83 | /* same as Linux kernel root hubs */ | |
84 | ||
85 | static const uint8_t qemu_hub_dev_descriptor[] = { | |
86 | 0x12, /* u8 bLength; */ | |
87 | 0x01, /* u8 bDescriptorType; Device */ | |
88 | 0x10, 0x01, /* u16 bcdUSB; v1.1 */ | |
89 | ||
90 | 0x09, /* u8 bDeviceClass; HUB_CLASSCODE */ | |
91 | 0x00, /* u8 bDeviceSubClass; */ | |
92 | 0x00, /* u8 bDeviceProtocol; [ low/full speeds only ] */ | |
93 | 0x08, /* u8 bMaxPacketSize0; 8 Bytes */ | |
94 | ||
95 | 0x00, 0x00, /* u16 idVendor; */ | |
96 | 0x00, 0x00, /* u16 idProduct; */ | |
97 | 0x01, 0x01, /* u16 bcdDevice */ | |
98 | ||
99 | 0x03, /* u8 iManufacturer; */ | |
100 | 0x02, /* u8 iProduct; */ | |
101 | 0x01, /* u8 iSerialNumber; */ | |
102 | 0x01 /* u8 bNumConfigurations; */ | |
103 | }; | |
104 | ||
105 | /* XXX: patch interrupt size */ | |
106 | static const uint8_t qemu_hub_config_descriptor[] = { | |
107 | ||
108 | /* one configuration */ | |
109 | 0x09, /* u8 bLength; */ | |
110 | 0x02, /* u8 bDescriptorType; Configuration */ | |
111 | 0x19, 0x00, /* u16 wTotalLength; */ | |
112 | 0x01, /* u8 bNumInterfaces; (1) */ | |
113 | 0x01, /* u8 bConfigurationValue; */ | |
114 | 0x00, /* u8 iConfiguration; */ | |
115 | 0xc0, /* u8 bmAttributes; | |
116 | Bit 7: must be set, | |
117 | 6: Self-powered, | |
118 | 5: Remote wakeup, | |
119 | 4..0: resvd */ | |
120 | 0x00, /* u8 MaxPower; */ | |
121 | ||
122 | /* USB 1.1: | |
123 | * USB 2.0, single TT organization (mandatory): | |
124 | * one interface, protocol 0 | |
125 | * | |
126 | * USB 2.0, multiple TT organization (optional): | |
127 | * two interfaces, protocols 1 (like single TT) | |
128 | * and 2 (multiple TT mode) ... config is | |
129 | * sometimes settable | |
130 | * NOT IMPLEMENTED | |
131 | */ | |
132 | ||
133 | /* one interface */ | |
134 | 0x09, /* u8 if_bLength; */ | |
135 | 0x04, /* u8 if_bDescriptorType; Interface */ | |
136 | 0x00, /* u8 if_bInterfaceNumber; */ | |
137 | 0x00, /* u8 if_bAlternateSetting; */ | |
138 | 0x01, /* u8 if_bNumEndpoints; */ | |
139 | 0x09, /* u8 if_bInterfaceClass; HUB_CLASSCODE */ | |
140 | 0x00, /* u8 if_bInterfaceSubClass; */ | |
141 | 0x00, /* u8 if_bInterfaceProtocol; [usb1.1 or single tt] */ | |
142 | 0x00, /* u8 if_iInterface; */ | |
143 | ||
144 | /* one endpoint (status change endpoint) */ | |
145 | 0x07, /* u8 ep_bLength; */ | |
146 | 0x05, /* u8 ep_bDescriptorType; Endpoint */ | |
147 | 0x81, /* u8 ep_bEndpointAddress; IN Endpoint 1 */ | |
148 | 0x03, /* u8 ep_bmAttributes; Interrupt */ | |
149 | 0x02, 0x00, /* u16 ep_wMaxPacketSize; 1 + (MAX_ROOT_PORTS / 8) */ | |
150 | 0xff /* u8 ep_bInterval; (255ms -- usb 2.0 spec) */ | |
151 | }; | |
152 | ||
153 | static const uint8_t qemu_hub_hub_descriptor[] = | |
154 | { | |
67f36560 | 155 | 0x00, /* u8 bLength; patched in later */ |
72899afc FB |
156 | 0x29, /* u8 bDescriptorType; Hub-descriptor */ |
157 | 0x00, /* u8 bNbrPorts; (patched later) */ | |
158 | 0x0a, /* u16 wHubCharacteristics; */ | |
159 | 0x00, /* (per-port OC, no power switching) */ | |
160 | 0x01, /* u8 bPwrOn2pwrGood; 2ms */ | |
985d1742 FB |
161 | 0x00 /* u8 bHubContrCurrent; 0 mA */ |
162 | ||
163 | /* DeviceRemovable and PortPwrCtrlMask patched in later */ | |
72899afc FB |
164 | }; |
165 | ||
166 | static void usb_hub_attach(USBPort *port1, USBDevice *dev) | |
167 | { | |
168 | USBHubState *s = port1->opaque; | |
169 | USBHubPort *port = &s->ports[port1->index]; | |
170 | ||
171 | if (dev) { | |
172 | if (port->port.dev) | |
173 | usb_attach(port1, NULL); | |
174 | ||
175 | port->wPortStatus |= PORT_STAT_CONNECTION; | |
176 | port->wPortChange |= PORT_STAT_C_CONNECTION; | |
177 | if (dev->speed == USB_SPEED_LOW) | |
178 | port->wPortStatus |= PORT_STAT_LOW_SPEED; | |
179 | else | |
180 | port->wPortStatus &= ~PORT_STAT_LOW_SPEED; | |
181 | port->port.dev = dev; | |
182 | } else { | |
183 | dev = port->port.dev; | |
184 | if (dev) { | |
185 | port->wPortStatus &= ~PORT_STAT_CONNECTION; | |
186 | port->wPortChange |= PORT_STAT_C_CONNECTION; | |
187 | if (port->wPortStatus & PORT_STAT_ENABLE) { | |
188 | port->wPortStatus &= ~PORT_STAT_ENABLE; | |
189 | port->wPortChange |= PORT_STAT_C_ENABLE; | |
190 | } | |
191 | port->port.dev = NULL; | |
192 | } | |
193 | } | |
194 | } | |
195 | ||
196 | static void usb_hub_handle_reset(USBDevice *dev) | |
197 | { | |
198 | /* XXX: do it */ | |
199 | } | |
200 | ||
201 | static int usb_hub_handle_control(USBDevice *dev, int request, int value, | |
202 | int index, int length, uint8_t *data) | |
203 | { | |
204 | USBHubState *s = (USBHubState *)dev; | |
205 | int ret; | |
206 | ||
207 | switch(request) { | |
208 | case DeviceRequest | USB_REQ_GET_STATUS: | |
209 | data[0] = (1 << USB_DEVICE_SELF_POWERED) | | |
210 | (dev->remote_wakeup << USB_DEVICE_REMOTE_WAKEUP); | |
211 | data[1] = 0x00; | |
212 | ret = 2; | |
213 | break; | |
214 | case DeviceOutRequest | USB_REQ_CLEAR_FEATURE: | |
215 | if (value == USB_DEVICE_REMOTE_WAKEUP) { | |
216 | dev->remote_wakeup = 0; | |
217 | } else { | |
218 | goto fail; | |
219 | } | |
220 | ret = 0; | |
221 | break; | |
985d1742 FB |
222 | case EndpointOutRequest | USB_REQ_CLEAR_FEATURE: |
223 | if (value == 0 && index != 0x81) { /* clear ep halt */ | |
224 | goto fail; | |
225 | } | |
226 | ret = 0; | |
227 | break; | |
72899afc FB |
228 | case DeviceOutRequest | USB_REQ_SET_FEATURE: |
229 | if (value == USB_DEVICE_REMOTE_WAKEUP) { | |
230 | dev->remote_wakeup = 1; | |
231 | } else { | |
232 | goto fail; | |
233 | } | |
234 | ret = 0; | |
235 | break; | |
236 | case DeviceOutRequest | USB_REQ_SET_ADDRESS: | |
237 | dev->addr = value; | |
238 | ret = 0; | |
239 | break; | |
240 | case DeviceRequest | USB_REQ_GET_DESCRIPTOR: | |
241 | switch(value >> 8) { | |
242 | case USB_DT_DEVICE: | |
243 | memcpy(data, qemu_hub_dev_descriptor, | |
244 | sizeof(qemu_hub_dev_descriptor)); | |
245 | ret = sizeof(qemu_hub_dev_descriptor); | |
246 | break; | |
247 | case USB_DT_CONFIG: | |
248 | memcpy(data, qemu_hub_config_descriptor, | |
249 | sizeof(qemu_hub_config_descriptor)); | |
985d1742 FB |
250 | |
251 | /* status change endpoint size based on number | |
252 | * of ports */ | |
253 | data[22] = (s->nb_ports + 1 + 7) / 8; | |
254 | ||
72899afc FB |
255 | ret = sizeof(qemu_hub_config_descriptor); |
256 | break; | |
257 | case USB_DT_STRING: | |
258 | switch(value & 0xff) { | |
259 | case 0: | |
260 | /* language ids */ | |
261 | data[0] = 4; | |
262 | data[1] = 3; | |
263 | data[2] = 0x09; | |
264 | data[3] = 0x04; | |
265 | ret = 4; | |
266 | break; | |
267 | case 1: | |
268 | /* serial number */ | |
269 | ret = set_usb_string(data, "314159"); | |
270 | break; | |
271 | case 2: | |
272 | /* product description */ | |
273 | ret = set_usb_string(data, "QEMU USB Hub"); | |
274 | break; | |
275 | case 3: | |
276 | /* vendor description */ | |
277 | ret = set_usb_string(data, "QEMU " QEMU_VERSION); | |
278 | break; | |
279 | default: | |
280 | goto fail; | |
281 | } | |
282 | break; | |
283 | default: | |
284 | goto fail; | |
285 | } | |
286 | break; | |
287 | case DeviceRequest | USB_REQ_GET_CONFIGURATION: | |
288 | data[0] = 1; | |
289 | ret = 1; | |
290 | break; | |
291 | case DeviceOutRequest | USB_REQ_SET_CONFIGURATION: | |
292 | ret = 0; | |
293 | break; | |
294 | case DeviceRequest | USB_REQ_GET_INTERFACE: | |
295 | data[0] = 0; | |
296 | ret = 1; | |
297 | break; | |
298 | case DeviceOutRequest | USB_REQ_SET_INTERFACE: | |
299 | ret = 0; | |
300 | break; | |
301 | /* usb specific requests */ | |
302 | case GetHubStatus: | |
303 | data[0] = 0; | |
304 | data[1] = 0; | |
305 | data[2] = 0; | |
306 | data[3] = 0; | |
307 | ret = 4; | |
308 | break; | |
309 | case GetPortStatus: | |
310 | { | |
311 | unsigned int n = index - 1; | |
312 | USBHubPort *port; | |
313 | if (n >= s->nb_ports) | |
314 | goto fail; | |
315 | port = &s->ports[n]; | |
316 | data[0] = port->wPortStatus; | |
317 | data[1] = port->wPortStatus >> 8; | |
318 | data[2] = port->wPortChange; | |
319 | data[3] = port->wPortChange >> 8; | |
320 | ret = 4; | |
321 | } | |
322 | break; | |
323 | case SetHubFeature: | |
324 | case ClearHubFeature: | |
325 | if (value == 0 || value == 1) { | |
326 | } else { | |
327 | goto fail; | |
328 | } | |
329 | ret = 0; | |
330 | break; | |
331 | case SetPortFeature: | |
332 | { | |
333 | unsigned int n = index - 1; | |
334 | USBHubPort *port; | |
335 | USBDevice *dev; | |
336 | if (n >= s->nb_ports) | |
337 | goto fail; | |
338 | port = &s->ports[n]; | |
339 | dev = port->port.dev; | |
340 | switch(value) { | |
341 | case PORT_SUSPEND: | |
342 | port->wPortStatus |= PORT_STAT_SUSPEND; | |
343 | break; | |
344 | case PORT_RESET: | |
345 | if (dev) { | |
346 | dev->handle_packet(dev, | |
347 | USB_MSG_RESET, 0, 0, NULL, 0); | |
348 | port->wPortChange |= PORT_STAT_C_RESET; | |
349 | /* set enable bit */ | |
72899afc FB |
350 | port->wPortStatus |= PORT_STAT_ENABLE; |
351 | } | |
352 | break; | |
353 | case PORT_POWER: | |
354 | break; | |
355 | default: | |
356 | goto fail; | |
357 | } | |
358 | ret = 0; | |
359 | } | |
360 | break; | |
361 | case ClearPortFeature: | |
362 | { | |
363 | unsigned int n = index - 1; | |
364 | USBHubPort *port; | |
365 | USBDevice *dev; | |
366 | if (n >= s->nb_ports) | |
367 | goto fail; | |
368 | port = &s->ports[n]; | |
369 | dev = port->port.dev; | |
370 | switch(value) { | |
371 | case PORT_ENABLE: | |
372 | port->wPortStatus &= ~PORT_STAT_ENABLE; | |
373 | break; | |
374 | case PORT_C_ENABLE: | |
375 | port->wPortChange &= ~PORT_STAT_C_ENABLE; | |
376 | break; | |
377 | case PORT_SUSPEND: | |
378 | port->wPortStatus &= ~PORT_STAT_SUSPEND; | |
379 | break; | |
380 | case PORT_C_SUSPEND: | |
381 | port->wPortChange &= ~PORT_STAT_C_SUSPEND; | |
382 | break; | |
383 | case PORT_C_CONNECTION: | |
384 | port->wPortChange &= ~PORT_STAT_C_CONNECTION; | |
385 | break; | |
386 | case PORT_C_OVERCURRENT: | |
387 | port->wPortChange &= ~PORT_STAT_C_OVERCURRENT; | |
388 | break; | |
389 | case PORT_C_RESET: | |
390 | port->wPortChange &= ~PORT_STAT_C_RESET; | |
391 | break; | |
392 | default: | |
393 | goto fail; | |
394 | } | |
395 | ret = 0; | |
396 | } | |
397 | break; | |
398 | case GetHubDescriptor: | |
985d1742 FB |
399 | { |
400 | unsigned int n, limit, var_hub_size = 0; | |
401 | memcpy(data, qemu_hub_hub_descriptor, | |
402 | sizeof(qemu_hub_hub_descriptor)); | |
403 | data[2] = s->nb_ports; | |
404 | ||
405 | /* fill DeviceRemovable bits */ | |
406 | limit = ((s->nb_ports + 1 + 7) / 8) + 7; | |
407 | for (n = 7; n < limit; n++) { | |
408 | data[n] = 0x00; | |
409 | var_hub_size++; | |
410 | } | |
411 | ||
412 | /* fill PortPwrCtrlMask bits */ | |
413 | limit = limit + ((s->nb_ports + 7) / 8); | |
414 | for (;n < limit; n++) { | |
415 | data[n] = 0xff; | |
416 | var_hub_size++; | |
417 | } | |
418 | ||
419 | ret = sizeof(qemu_hub_hub_descriptor) + var_hub_size; | |
67f36560 | 420 | data[0] = ret; |
985d1742 FB |
421 | break; |
422 | } | |
72899afc FB |
423 | default: |
424 | fail: | |
425 | ret = USB_RET_STALL; | |
426 | break; | |
427 | } | |
428 | return ret; | |
429 | } | |
430 | ||
431 | static int usb_hub_handle_data(USBDevice *dev, int pid, | |
432 | uint8_t devep, uint8_t *data, int len) | |
433 | { | |
434 | USBHubState *s = (USBHubState *)dev; | |
435 | int ret; | |
436 | ||
437 | switch(pid) { | |
438 | case USB_TOKEN_IN: | |
439 | if (devep == 1) { | |
440 | USBHubPort *port; | |
441 | unsigned int status; | |
442 | int i, n; | |
443 | n = (s->nb_ports + 1 + 7) / 8; | |
985d1742 FB |
444 | if (len == 1) { /* FreeBSD workaround */ |
445 | n = 1; | |
446 | } else if (n > len) { | |
72899afc | 447 | return USB_RET_BABBLE; |
985d1742 | 448 | } |
72899afc FB |
449 | status = 0; |
450 | for(i = 0; i < s->nb_ports; i++) { | |
451 | port = &s->ports[i]; | |
452 | if (port->wPortChange) | |
453 | status |= (1 << (i + 1)); | |
454 | } | |
455 | if (status != 0) { | |
456 | for(i = 0; i < n; i++) { | |
457 | data[i] = status >> (8 * i); | |
458 | } | |
459 | ret = n; | |
460 | } else { | |
985d1742 | 461 | ret = USB_RET_NAK; /* usb11 11.13.1 */ |
72899afc FB |
462 | } |
463 | } else { | |
464 | goto fail; | |
465 | } | |
466 | break; | |
467 | case USB_TOKEN_OUT: | |
468 | default: | |
469 | fail: | |
470 | ret = USB_RET_STALL; | |
471 | break; | |
472 | } | |
473 | return ret; | |
474 | } | |
475 | ||
476 | static int usb_hub_broadcast_packet(USBHubState *s, int pid, | |
477 | uint8_t devaddr, uint8_t devep, | |
478 | uint8_t *data, int len) | |
479 | { | |
480 | USBHubPort *port; | |
481 | USBDevice *dev; | |
482 | int i, ret; | |
483 | ||
484 | for(i = 0; i < s->nb_ports; i++) { | |
485 | port = &s->ports[i]; | |
486 | dev = port->port.dev; | |
487 | if (dev && (port->wPortStatus & PORT_STAT_ENABLE)) { | |
488 | ret = dev->handle_packet(dev, pid, | |
489 | devaddr, devep, | |
490 | data, len); | |
491 | if (ret != USB_RET_NODEV) { | |
492 | return ret; | |
493 | } | |
494 | } | |
495 | } | |
496 | return USB_RET_NODEV; | |
497 | } | |
498 | ||
499 | static int usb_hub_handle_packet(USBDevice *dev, int pid, | |
500 | uint8_t devaddr, uint8_t devep, | |
501 | uint8_t *data, int len) | |
502 | { | |
503 | USBHubState *s = (USBHubState *)dev; | |
504 | ||
505 | #if defined(DEBUG) && 0 | |
506 | printf("usb_hub: pid=0x%x\n", pid); | |
507 | #endif | |
508 | if (dev->state == USB_STATE_DEFAULT && | |
509 | dev->addr != 0 && | |
510 | devaddr != dev->addr && | |
511 | (pid == USB_TOKEN_SETUP || | |
512 | pid == USB_TOKEN_OUT || | |
513 | pid == USB_TOKEN_IN)) { | |
514 | /* broadcast the packet to the devices */ | |
515 | return usb_hub_broadcast_packet(s, pid, devaddr, devep, data, len); | |
516 | } | |
517 | return usb_generic_handle_packet(dev, pid, devaddr, devep, data, len); | |
518 | } | |
519 | ||
520 | USBDevice *usb_hub_init(USBPort **usb_ports, int nb_ports) | |
521 | { | |
522 | USBHubState *s; | |
523 | USBHubPort *port; | |
524 | int i; | |
525 | ||
526 | if (nb_ports > MAX_PORTS) | |
527 | return NULL; | |
528 | s = qemu_mallocz(sizeof(USBHubState)); | |
529 | if (!s) | |
530 | return NULL; | |
531 | s->dev.speed = USB_SPEED_FULL; | |
532 | s->dev.handle_packet = usb_hub_handle_packet; | |
533 | ||
534 | /* generic USB device init */ | |
535 | s->dev.handle_reset = usb_hub_handle_reset; | |
536 | s->dev.handle_control = usb_hub_handle_control; | |
537 | s->dev.handle_data = usb_hub_handle_data; | |
538 | ||
539 | s->nb_ports = nb_ports; | |
540 | for(i = 0; i < s->nb_ports; i++) { | |
541 | port = &s->ports[i]; | |
542 | port->wPortStatus = PORT_STAT_POWER; | |
543 | port->wPortChange = 0; | |
544 | port->port.attach = usb_hub_attach; | |
545 | port->port.opaque = s; | |
546 | port->port.index = i; | |
547 | usb_ports[i] = &port->port; | |
548 | } | |
549 | return (USBDevice *)s; | |
550 | } |