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 | |
25 | #include "qemu/osdep.h" |
26 | #include "qapi/error.h" |
27 | #include "qemu/timer.h" |
28 | #include "trace.h" |
29 | #include "hw/qdev-properties.h" |
30 | #include "hw/usb.h" |
31 | #include "migration/vmstate.h" |
32 | #include "desc.h" |
33 | #include "qemu/error-report.h" |
34 | #include "qemu/module.h" |
35 | |
36 | #define MAX_PORTS 8 |
37 | |
38 | typedef struct USBHubPort { |
39 | USBPort port; |
40 | uint16_t wPortStatus; |
41 | uint16_t wPortChange; |
42 | } USBHubPort; |
43 | |
44 | typedef struct USBHubState { |
45 | USBDevice dev; |
46 | USBEndpoint *intr; |
47 | uint32_t num_ports; |
48 | bool port_power; |
49 | QEMUTimer *port_timer; |
50 | USBHubPort ports[MAX_PORTS]; |
51 | } USBHubState; |
52 | |
53 | #define TYPE_USB_HUB "usb-hub" |
54 | #define USB_HUB(obj) OBJECT_CHECK(USBHubState, (obj), TYPE_USB_HUB) |
55 | |
56 | #define ClearHubFeature (0x2000 | USB_REQ_CLEAR_FEATURE) |
57 | #define ClearPortFeature (0x2300 | USB_REQ_CLEAR_FEATURE) |
58 | #define GetHubDescriptor (0xa000 | USB_REQ_GET_DESCRIPTOR) |
59 | #define GetHubStatus (0xa000 | USB_REQ_GET_STATUS) |
60 | #define GetPortStatus (0xa300 | USB_REQ_GET_STATUS) |
61 | #define SetHubFeature (0x2000 | USB_REQ_SET_FEATURE) |
62 | #define SetPortFeature (0x2300 | USB_REQ_SET_FEATURE) |
63 | |
64 | #define PORT_STAT_CONNECTION 0x0001 |
65 | #define PORT_STAT_ENABLE 0x0002 |
66 | #define PORT_STAT_SUSPEND 0x0004 |
67 | #define PORT_STAT_OVERCURRENT 0x0008 |
68 | #define PORT_STAT_RESET 0x0010 |
69 | #define PORT_STAT_POWER 0x0100 |
70 | #define PORT_STAT_LOW_SPEED 0x0200 |
71 | #define PORT_STAT_HIGH_SPEED 0x0400 |
72 | #define PORT_STAT_TEST 0x0800 |
73 | #define PORT_STAT_INDICATOR 0x1000 |
74 | |
75 | #define PORT_STAT_C_CONNECTION 0x0001 |
76 | #define PORT_STAT_C_ENABLE 0x0002 |
77 | #define PORT_STAT_C_SUSPEND 0x0004 |
78 | #define PORT_STAT_C_OVERCURRENT 0x0008 |
79 | #define PORT_STAT_C_RESET 0x0010 |
80 | |
81 | #define PORT_CONNECTION 0 |
82 | #define PORT_ENABLE 1 |
83 | #define PORT_SUSPEND 2 |
84 | #define PORT_OVERCURRENT 3 |
85 | #define PORT_RESET 4 |
86 | #define PORT_POWER 8 |
87 | #define PORT_LOWSPEED 9 |
88 | #define PORT_HIGHSPEED 10 |
89 | #define PORT_C_CONNECTION 16 |
90 | #define PORT_C_ENABLE 17 |
91 | #define PORT_C_SUSPEND 18 |
92 | #define PORT_C_OVERCURRENT 19 |
93 | #define PORT_C_RESET 20 |
94 | #define PORT_TEST 21 |
95 | #define PORT_INDICATOR 22 |
96 | |
97 | /* same as Linux kernel root hubs */ |
98 | |
99 | enum { |
100 | STR_MANUFACTURER = 1, |
101 | STR_PRODUCT, |
102 | STR_SERIALNUMBER, |
103 | }; |
104 | |
105 | static const USBDescStrings desc_strings = { |
106 | [STR_MANUFACTURER] = "QEMU" , |
107 | [STR_PRODUCT] = "QEMU USB Hub" , |
108 | [STR_SERIALNUMBER] = "314159" , |
109 | }; |
110 | |
111 | static const USBDescIface desc_iface_hub = { |
112 | .bInterfaceNumber = 0, |
113 | .bNumEndpoints = 1, |
114 | .bInterfaceClass = USB_CLASS_HUB, |
115 | .eps = (USBDescEndpoint[]) { |
116 | { |
117 | .bEndpointAddress = USB_DIR_IN | 0x01, |
118 | .bmAttributes = USB_ENDPOINT_XFER_INT, |
119 | .wMaxPacketSize = 1 + DIV_ROUND_UP(MAX_PORTS, 8), |
120 | .bInterval = 0xff, |
121 | }, |
122 | } |
123 | }; |
124 | |
125 | static const USBDescDevice desc_device_hub = { |
126 | .bcdUSB = 0x0110, |
127 | .bDeviceClass = USB_CLASS_HUB, |
128 | .bMaxPacketSize0 = 8, |
129 | .bNumConfigurations = 1, |
130 | .confs = (USBDescConfig[]) { |
131 | { |
132 | .bNumInterfaces = 1, |
133 | .bConfigurationValue = 1, |
134 | .bmAttributes = USB_CFG_ATT_ONE | USB_CFG_ATT_SELFPOWER | |
135 | USB_CFG_ATT_WAKEUP, |
136 | .nif = 1, |
137 | .ifs = &desc_iface_hub, |
138 | }, |
139 | }, |
140 | }; |
141 | |
142 | static const USBDesc desc_hub = { |
143 | .id = { |
144 | .idVendor = 0x0409, |
145 | .idProduct = 0x55aa, |
146 | .bcdDevice = 0x0101, |
147 | .iManufacturer = STR_MANUFACTURER, |
148 | .iProduct = STR_PRODUCT, |
149 | .iSerialNumber = STR_SERIALNUMBER, |
150 | }, |
151 | .full = &desc_device_hub, |
152 | .str = desc_strings, |
153 | }; |
154 | |
155 | static const uint8_t qemu_hub_hub_descriptor[] = |
156 | { |
157 | 0x00, /* u8 bLength; patched in later */ |
158 | 0x29, /* u8 bDescriptorType; Hub-descriptor */ |
159 | 0x00, /* u8 bNbrPorts; (patched later) */ |
160 | 0x0a, /* u16 wHubCharacteristics; */ |
161 | 0x00, /* (per-port OC, no power switching) */ |
162 | 0x01, /* u8 bPwrOn2pwrGood; 2ms */ |
163 | 0x00 /* u8 bHubContrCurrent; 0 mA */ |
164 | |
165 | /* DeviceRemovable and PortPwrCtrlMask patched in later */ |
166 | }; |
167 | |
168 | static bool usb_hub_port_change(USBHubPort *port, uint16_t status) |
169 | { |
170 | bool notify = false; |
171 | |
172 | if (status & 0x1f) { |
173 | port->wPortChange |= status; |
174 | notify = true; |
175 | } |
176 | return notify; |
177 | } |
178 | |
179 | static bool usb_hub_port_set(USBHubPort *port, uint16_t status) |
180 | { |
181 | if (port->wPortStatus & status) { |
182 | return false; |
183 | } |
184 | port->wPortStatus |= status; |
185 | return usb_hub_port_change(port, status); |
186 | } |
187 | |
188 | static bool usb_hub_port_clear(USBHubPort *port, uint16_t status) |
189 | { |
190 | if (!(port->wPortStatus & status)) { |
191 | return false; |
192 | } |
193 | port->wPortStatus &= ~status; |
194 | return usb_hub_port_change(port, status); |
195 | } |
196 | |
197 | static bool usb_hub_port_update(USBHubPort *port) |
198 | { |
199 | bool notify = false; |
200 | |
201 | if (port->port.dev && port->port.dev->attached) { |
202 | notify = usb_hub_port_set(port, PORT_STAT_CONNECTION); |
203 | if (port->port.dev->speed == USB_SPEED_LOW) { |
204 | usb_hub_port_set(port, PORT_STAT_LOW_SPEED); |
205 | } else { |
206 | usb_hub_port_clear(port, PORT_STAT_LOW_SPEED); |
207 | } |
208 | } |
209 | return notify; |
210 | } |
211 | |
212 | static void usb_hub_port_update_timer(void *opaque) |
213 | { |
214 | USBHubState *s = opaque; |
215 | bool notify = false; |
216 | int i; |
217 | |
218 | for (i = 0; i < s->num_ports; i++) { |
219 | notify |= usb_hub_port_update(&s->ports[i]); |
220 | } |
221 | if (notify) { |
222 | usb_wakeup(s->intr, 0); |
223 | } |
224 | } |
225 | |
226 | static void usb_hub_attach(USBPort *port1) |
227 | { |
228 | USBHubState *s = port1->opaque; |
229 | USBHubPort *port = &s->ports[port1->index]; |
230 | |
231 | trace_usb_hub_attach(s->dev.addr, port1->index + 1); |
232 | usb_hub_port_update(port); |
233 | usb_wakeup(s->intr, 0); |
234 | } |
235 | |
236 | static void usb_hub_detach(USBPort *port1) |
237 | { |
238 | USBHubState *s = port1->opaque; |
239 | USBHubPort *port = &s->ports[port1->index]; |
240 | |
241 | trace_usb_hub_detach(s->dev.addr, port1->index + 1); |
242 | usb_wakeup(s->intr, 0); |
243 | |
244 | /* Let upstream know the device on this port is gone */ |
245 | s->dev.port->ops->child_detach(s->dev.port, port1->dev); |
246 | |
247 | usb_hub_port_clear(port, PORT_STAT_CONNECTION); |
248 | usb_hub_port_clear(port, PORT_STAT_ENABLE); |
249 | usb_hub_port_clear(port, PORT_STAT_SUSPEND); |
250 | usb_wakeup(s->intr, 0); |
251 | } |
252 | |
253 | static void usb_hub_child_detach(USBPort *port1, USBDevice *child) |
254 | { |
255 | USBHubState *s = port1->opaque; |
256 | |
257 | /* Pass along upstream */ |
258 | s->dev.port->ops->child_detach(s->dev.port, child); |
259 | } |
260 | |
261 | static void usb_hub_wakeup(USBPort *port1) |
262 | { |
263 | USBHubState *s = port1->opaque; |
264 | USBHubPort *port = &s->ports[port1->index]; |
265 | |
266 | if (usb_hub_port_clear(port, PORT_STAT_SUSPEND)) { |
267 | usb_wakeup(s->intr, 0); |
268 | } |
269 | } |
270 | |
271 | static void usb_hub_complete(USBPort *port, USBPacket *packet) |
272 | { |
273 | USBHubState *s = port->opaque; |
274 | |
275 | /* |
276 | * Just pass it along upstream for now. |
277 | * |
278 | * If we ever implement usb 2.0 split transactions this will |
279 | * become a little more complicated ... |
280 | * |
281 | * Can't use usb_packet_complete() here because packet->owner is |
282 | * cleared already, go call the ->complete() callback directly |
283 | * instead. |
284 | */ |
285 | s->dev.port->ops->complete(s->dev.port, packet); |
286 | } |
287 | |
288 | static USBDevice *usb_hub_find_device(USBDevice *dev, uint8_t addr) |
289 | { |
290 | USBHubState *s = USB_HUB(dev); |
291 | USBHubPort *port; |
292 | USBDevice *downstream; |
293 | int i; |
294 | |
295 | for (i = 0; i < s->num_ports; i++) { |
296 | port = &s->ports[i]; |
297 | if (!(port->wPortStatus & PORT_STAT_ENABLE)) { |
298 | continue; |
299 | } |
300 | downstream = usb_find_device(&port->port, addr); |
301 | if (downstream != NULL) { |
302 | return downstream; |
303 | } |
304 | } |
305 | return NULL; |
306 | } |
307 | |
308 | static void usb_hub_handle_reset(USBDevice *dev) |
309 | { |
310 | USBHubState *s = USB_HUB(dev); |
311 | USBHubPort *port; |
312 | int i; |
313 | |
314 | trace_usb_hub_reset(s->dev.addr); |
315 | for (i = 0; i < s->num_ports; i++) { |
316 | port = s->ports + i; |
317 | port->wPortStatus = 0; |
318 | port->wPortChange = 0; |
319 | usb_hub_port_set(port, PORT_STAT_POWER); |
320 | usb_hub_port_update(port); |
321 | } |
322 | } |
323 | |
324 | static const char *feature_name(int feature) |
325 | { |
326 | static const char *name[] = { |
327 | [PORT_CONNECTION] = "connection" , |
328 | [PORT_ENABLE] = "enable" , |
329 | [PORT_SUSPEND] = "suspend" , |
330 | [PORT_OVERCURRENT] = "overcurrent" , |
331 | [PORT_RESET] = "reset" , |
332 | [PORT_POWER] = "power" , |
333 | [PORT_LOWSPEED] = "lowspeed" , |
334 | [PORT_HIGHSPEED] = "highspeed" , |
335 | [PORT_C_CONNECTION] = "change-connection" , |
336 | [PORT_C_ENABLE] = "change-enable" , |
337 | [PORT_C_SUSPEND] = "change-suspend" , |
338 | [PORT_C_OVERCURRENT] = "change-overcurrent" , |
339 | [PORT_C_RESET] = "change-reset" , |
340 | [PORT_TEST] = "test" , |
341 | [PORT_INDICATOR] = "indicator" , |
342 | }; |
343 | if (feature < 0 || feature >= ARRAY_SIZE(name)) { |
344 | return "?" ; |
345 | } |
346 | return name[feature] ?: "?" ; |
347 | } |
348 | |
349 | static void usb_hub_handle_control(USBDevice *dev, USBPacket *p, |
350 | int request, int value, int index, int length, uint8_t *data) |
351 | { |
352 | USBHubState *s = (USBHubState *)dev; |
353 | int ret; |
354 | |
355 | trace_usb_hub_control(s->dev.addr, request, value, index, length); |
356 | |
357 | ret = usb_desc_handle_control(dev, p, request, value, index, length, data); |
358 | if (ret >= 0) { |
359 | return; |
360 | } |
361 | |
362 | switch(request) { |
363 | case EndpointOutRequest | USB_REQ_CLEAR_FEATURE: |
364 | if (value == 0 && index != 0x81) { /* clear ep halt */ |
365 | goto fail; |
366 | } |
367 | break; |
368 | /* usb specific requests */ |
369 | case GetHubStatus: |
370 | data[0] = 0; |
371 | data[1] = 0; |
372 | data[2] = 0; |
373 | data[3] = 0; |
374 | p->actual_length = 4; |
375 | break; |
376 | case GetPortStatus: |
377 | { |
378 | unsigned int n = index - 1; |
379 | USBHubPort *port; |
380 | if (n >= s->num_ports) { |
381 | goto fail; |
382 | } |
383 | port = &s->ports[n]; |
384 | trace_usb_hub_get_port_status(s->dev.addr, index, |
385 | port->wPortStatus, |
386 | port->wPortChange); |
387 | data[0] = port->wPortStatus; |
388 | data[1] = port->wPortStatus >> 8; |
389 | data[2] = port->wPortChange; |
390 | data[3] = port->wPortChange >> 8; |
391 | p->actual_length = 4; |
392 | } |
393 | break; |
394 | case SetHubFeature: |
395 | case ClearHubFeature: |
396 | if (value != 0 && value != 1) { |
397 | goto fail; |
398 | } |
399 | break; |
400 | case SetPortFeature: |
401 | { |
402 | unsigned int n = index - 1; |
403 | USBHubPort *port; |
404 | USBDevice *dev; |
405 | |
406 | trace_usb_hub_set_port_feature(s->dev.addr, index, |
407 | feature_name(value)); |
408 | |
409 | if (n >= s->num_ports) { |
410 | goto fail; |
411 | } |
412 | port = &s->ports[n]; |
413 | dev = port->port.dev; |
414 | switch(value) { |
415 | case PORT_SUSPEND: |
416 | port->wPortStatus |= PORT_STAT_SUSPEND; |
417 | break; |
418 | case PORT_RESET: |
419 | usb_hub_port_set(port, PORT_STAT_RESET); |
420 | usb_hub_port_clear(port, PORT_STAT_RESET); |
421 | if (dev && dev->attached) { |
422 | usb_device_reset(dev); |
423 | usb_hub_port_set(port, PORT_STAT_ENABLE); |
424 | } |
425 | usb_wakeup(s->intr, 0); |
426 | break; |
427 | case PORT_POWER: |
428 | if (s->port_power) { |
429 | int64_t now = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL); |
430 | usb_hub_port_set(port, PORT_STAT_POWER); |
431 | timer_mod(s->port_timer, now + 5000000); /* 5 ms */ |
432 | } |
433 | break; |
434 | default: |
435 | goto fail; |
436 | } |
437 | } |
438 | break; |
439 | case ClearPortFeature: |
440 | { |
441 | unsigned int n = index - 1; |
442 | USBHubPort *port; |
443 | |
444 | trace_usb_hub_clear_port_feature(s->dev.addr, index, |
445 | feature_name(value)); |
446 | |
447 | if (n >= s->num_ports) { |
448 | goto fail; |
449 | } |
450 | port = &s->ports[n]; |
451 | switch(value) { |
452 | case PORT_ENABLE: |
453 | port->wPortStatus &= ~PORT_STAT_ENABLE; |
454 | break; |
455 | case PORT_C_ENABLE: |
456 | port->wPortChange &= ~PORT_STAT_C_ENABLE; |
457 | break; |
458 | case PORT_SUSPEND: |
459 | usb_hub_port_clear(port, PORT_STAT_SUSPEND); |
460 | break; |
461 | case PORT_C_SUSPEND: |
462 | port->wPortChange &= ~PORT_STAT_C_SUSPEND; |
463 | break; |
464 | case PORT_C_CONNECTION: |
465 | port->wPortChange &= ~PORT_STAT_C_CONNECTION; |
466 | break; |
467 | case PORT_C_OVERCURRENT: |
468 | port->wPortChange &= ~PORT_STAT_C_OVERCURRENT; |
469 | break; |
470 | case PORT_C_RESET: |
471 | port->wPortChange &= ~PORT_STAT_C_RESET; |
472 | break; |
473 | case PORT_POWER: |
474 | if (s->port_power) { |
475 | usb_hub_port_clear(port, PORT_STAT_POWER); |
476 | usb_hub_port_clear(port, PORT_STAT_CONNECTION); |
477 | usb_hub_port_clear(port, PORT_STAT_ENABLE); |
478 | usb_hub_port_clear(port, PORT_STAT_SUSPEND); |
479 | port->wPortChange = 0; |
480 | } |
481 | default: |
482 | goto fail; |
483 | } |
484 | } |
485 | break; |
486 | case GetHubDescriptor: |
487 | { |
488 | unsigned int n, limit, var_hub_size = 0; |
489 | memcpy(data, qemu_hub_hub_descriptor, |
490 | sizeof(qemu_hub_hub_descriptor)); |
491 | data[2] = s->num_ports; |
492 | |
493 | if (s->port_power) { |
494 | data[3] &= ~0x03; |
495 | data[3] |= 0x01; |
496 | } |
497 | |
498 | /* fill DeviceRemovable bits */ |
499 | limit = DIV_ROUND_UP(s->num_ports + 1, 8) + 7; |
500 | for (n = 7; n < limit; n++) { |
501 | data[n] = 0x00; |
502 | var_hub_size++; |
503 | } |
504 | |
505 | /* fill PortPwrCtrlMask bits */ |
506 | limit = limit + DIV_ROUND_UP(s->num_ports, 8); |
507 | for (;n < limit; n++) { |
508 | data[n] = 0xff; |
509 | var_hub_size++; |
510 | } |
511 | |
512 | p->actual_length = sizeof(qemu_hub_hub_descriptor) + var_hub_size; |
513 | data[0] = p->actual_length; |
514 | break; |
515 | } |
516 | default: |
517 | fail: |
518 | p->status = USB_RET_STALL; |
519 | break; |
520 | } |
521 | } |
522 | |
523 | static void usb_hub_handle_data(USBDevice *dev, USBPacket *p) |
524 | { |
525 | USBHubState *s = (USBHubState *)dev; |
526 | |
527 | switch(p->pid) { |
528 | case USB_TOKEN_IN: |
529 | if (p->ep->nr == 1) { |
530 | USBHubPort *port; |
531 | unsigned int status; |
532 | uint8_t buf[4]; |
533 | int i, n; |
534 | n = DIV_ROUND_UP(s->num_ports + 1, 8); |
535 | if (p->iov.size == 1) { /* FreeBSD workaround */ |
536 | n = 1; |
537 | } else if (n > p->iov.size) { |
538 | p->status = USB_RET_BABBLE; |
539 | return; |
540 | } |
541 | status = 0; |
542 | for (i = 0; i < s->num_ports; i++) { |
543 | port = &s->ports[i]; |
544 | if (port->wPortChange) |
545 | status |= (1 << (i + 1)); |
546 | } |
547 | if (status != 0) { |
548 | trace_usb_hub_status_report(s->dev.addr, status); |
549 | for(i = 0; i < n; i++) { |
550 | buf[i] = status >> (8 * i); |
551 | } |
552 | usb_packet_copy(p, buf, n); |
553 | } else { |
554 | p->status = USB_RET_NAK; /* usb11 11.13.1 */ |
555 | } |
556 | } else { |
557 | goto fail; |
558 | } |
559 | break; |
560 | case USB_TOKEN_OUT: |
561 | default: |
562 | fail: |
563 | p->status = USB_RET_STALL; |
564 | break; |
565 | } |
566 | } |
567 | |
568 | static void usb_hub_unrealize(USBDevice *dev, Error **errp) |
569 | { |
570 | USBHubState *s = (USBHubState *)dev; |
571 | int i; |
572 | |
573 | for (i = 0; i < s->num_ports; i++) { |
574 | usb_unregister_port(usb_bus_from_device(dev), |
575 | &s->ports[i].port); |
576 | } |
577 | |
578 | timer_del(s->port_timer); |
579 | timer_free(s->port_timer); |
580 | } |
581 | |
582 | static USBPortOps usb_hub_port_ops = { |
583 | .attach = usb_hub_attach, |
584 | .detach = usb_hub_detach, |
585 | .child_detach = usb_hub_child_detach, |
586 | .wakeup = usb_hub_wakeup, |
587 | .complete = usb_hub_complete, |
588 | }; |
589 | |
590 | static void usb_hub_realize(USBDevice *dev, Error **errp) |
591 | { |
592 | USBHubState *s = USB_HUB(dev); |
593 | USBHubPort *port; |
594 | int i; |
595 | |
596 | if (s->num_ports < 1 || s->num_ports > MAX_PORTS) { |
597 | error_setg(errp, "num_ports (%d) out of range (1..%d)" , |
598 | s->num_ports, MAX_PORTS); |
599 | return; |
600 | } |
601 | |
602 | if (dev->port->hubcount == 5) { |
603 | error_setg(errp, "usb hub chain too deep" ); |
604 | return; |
605 | } |
606 | |
607 | usb_desc_create_serial(dev); |
608 | usb_desc_init(dev); |
609 | s->port_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, |
610 | usb_hub_port_update_timer, s); |
611 | s->intr = usb_ep_get(dev, USB_TOKEN_IN, 1); |
612 | for (i = 0; i < s->num_ports; i++) { |
613 | port = &s->ports[i]; |
614 | usb_register_port(usb_bus_from_device(dev), |
615 | &port->port, s, i, &usb_hub_port_ops, |
616 | USB_SPEED_MASK_LOW | USB_SPEED_MASK_FULL); |
617 | usb_port_location(&port->port, dev->port, i+1); |
618 | } |
619 | usb_hub_handle_reset(dev); |
620 | } |
621 | |
622 | static const VMStateDescription vmstate_usb_hub_port = { |
623 | .name = "usb-hub-port" , |
624 | .version_id = 1, |
625 | .minimum_version_id = 1, |
626 | .fields = (VMStateField[]) { |
627 | VMSTATE_UINT16(wPortStatus, USBHubPort), |
628 | VMSTATE_UINT16(wPortChange, USBHubPort), |
629 | VMSTATE_END_OF_LIST() |
630 | } |
631 | }; |
632 | |
633 | static bool usb_hub_port_timer_needed(void *opaque) |
634 | { |
635 | USBHubState *s = opaque; |
636 | |
637 | return s->port_power; |
638 | } |
639 | |
640 | static const VMStateDescription vmstate_usb_hub_port_timer = { |
641 | .name = "usb-hub/port-timer" , |
642 | .version_id = 1, |
643 | .minimum_version_id = 1, |
644 | .needed = usb_hub_port_timer_needed, |
645 | .fields = (VMStateField[]) { |
646 | VMSTATE_TIMER_PTR(port_timer, USBHubState), |
647 | VMSTATE_END_OF_LIST() |
648 | }, |
649 | }; |
650 | |
651 | static const VMStateDescription vmstate_usb_hub = { |
652 | .name = "usb-hub" , |
653 | .version_id = 1, |
654 | .minimum_version_id = 1, |
655 | .fields = (VMStateField[]) { |
656 | VMSTATE_USB_DEVICE(dev, USBHubState), |
657 | VMSTATE_STRUCT_ARRAY(ports, USBHubState, MAX_PORTS, 0, |
658 | vmstate_usb_hub_port, USBHubPort), |
659 | VMSTATE_END_OF_LIST() |
660 | }, |
661 | .subsections = (const VMStateDescription * []) { |
662 | &vmstate_usb_hub_port_timer, |
663 | NULL |
664 | } |
665 | }; |
666 | |
667 | static Property usb_hub_properties[] = { |
668 | DEFINE_PROP_UINT32("ports" , USBHubState, num_ports, 8), |
669 | DEFINE_PROP_BOOL("port-power" , USBHubState, port_power, false), |
670 | DEFINE_PROP_END_OF_LIST(), |
671 | }; |
672 | |
673 | static void usb_hub_class_initfn(ObjectClass *klass, void *data) |
674 | { |
675 | DeviceClass *dc = DEVICE_CLASS(klass); |
676 | USBDeviceClass *uc = USB_DEVICE_CLASS(klass); |
677 | |
678 | uc->realize = usb_hub_realize; |
679 | uc->product_desc = "QEMU USB Hub" ; |
680 | uc->usb_desc = &desc_hub; |
681 | uc->find_device = usb_hub_find_device; |
682 | uc->handle_reset = usb_hub_handle_reset; |
683 | uc->handle_control = usb_hub_handle_control; |
684 | uc->handle_data = usb_hub_handle_data; |
685 | uc->unrealize = usb_hub_unrealize; |
686 | set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories); |
687 | dc->fw_name = "hub" ; |
688 | dc->vmsd = &vmstate_usb_hub; |
689 | dc->props = usb_hub_properties; |
690 | } |
691 | |
692 | static const TypeInfo hub_info = { |
693 | .name = TYPE_USB_HUB, |
694 | .parent = TYPE_USB_DEVICE, |
695 | .instance_size = sizeof(USBHubState), |
696 | .class_init = usb_hub_class_initfn, |
697 | }; |
698 | |
699 | static void usb_hub_register_types(void) |
700 | { |
701 | type_register_static(&hub_info); |
702 | } |
703 | |
704 | type_init(usb_hub_register_types) |
705 | |