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36#include "qemu/osdep.h"
37#ifndef CONFIG_WIN32
38#include <poll.h>
39#endif
40#include <libusb.h>
41
42#include "qapi/error.h"
43#include "monitor/monitor.h"
44#include "qemu/error-report.h"
45#include "qemu/module.h"
46#include "sysemu/sysemu.h"
47#include "trace.h"
48
49#include "hw/usb.h"
50
51
52
53#define TYPE_USB_HOST_DEVICE "usb-host"
54#define USB_HOST_DEVICE(obj) \
55 OBJECT_CHECK(USBHostDevice, (obj), TYPE_USB_HOST_DEVICE)
56
57typedef struct USBHostDevice USBHostDevice;
58typedef struct USBHostRequest USBHostRequest;
59typedef struct USBHostIsoXfer USBHostIsoXfer;
60typedef struct USBHostIsoRing USBHostIsoRing;
61
62struct USBAutoFilter {
63 uint32_t bus_num;
64 uint32_t addr;
65 char *port;
66 uint32_t vendor_id;
67 uint32_t product_id;
68};
69
70enum USBHostDeviceOptions {
71 USB_HOST_OPT_PIPELINE,
72};
73
74struct USBHostDevice {
75 USBDevice parent_obj;
76
77
78 struct USBAutoFilter match;
79 int32_t bootindex;
80 uint32_t iso_urb_count;
81 uint32_t iso_urb_frames;
82 uint32_t options;
83 uint32_t loglevel;
84 bool needs_autoscan;
85 bool allow_guest_reset;
86
87 QTAILQ_ENTRY(USBHostDevice) next;
88 int seen, errcount;
89 int bus_num;
90 int addr;
91 char port[16];
92
93 libusb_device *dev;
94 libusb_device_handle *dh;
95 struct libusb_device_descriptor ddesc;
96
97 struct {
98 bool detached;
99 bool claimed;
100 } ifs[USB_MAX_INTERFACES];
101
102
103 QEMUBH *bh_nodev;
104 QEMUBH *bh_postld;
105 bool bh_postld_pending;
106 Notifier exit;
107
108
109 QTAILQ_HEAD(, USBHostRequest) requests;
110 QTAILQ_HEAD(, USBHostIsoRing) isorings;
111};
112
113struct USBHostRequest {
114 USBHostDevice *host;
115 USBPacket *p;
116 bool in;
117 struct libusb_transfer *xfer;
118 unsigned char *buffer;
119 unsigned char *cbuf;
120 unsigned int clen;
121 bool usb3ep0quirk;
122 QTAILQ_ENTRY(USBHostRequest) next;
123};
124
125struct USBHostIsoXfer {
126 USBHostIsoRing *ring;
127 struct libusb_transfer *xfer;
128 bool copy_complete;
129 unsigned int packet;
130 QTAILQ_ENTRY(USBHostIsoXfer) next;
131};
132
133struct USBHostIsoRing {
134 USBHostDevice *host;
135 USBEndpoint *ep;
136 QTAILQ_HEAD(, USBHostIsoXfer) unused;
137 QTAILQ_HEAD(, USBHostIsoXfer) inflight;
138 QTAILQ_HEAD(, USBHostIsoXfer) copy;
139 QTAILQ_ENTRY(USBHostIsoRing) next;
140};
141
142static QTAILQ_HEAD(, USBHostDevice) hostdevs =
143 QTAILQ_HEAD_INITIALIZER(hostdevs);
144
145static void usb_host_auto_check(void *unused);
146static void usb_host_release_interfaces(USBHostDevice *s);
147static void usb_host_nodev(USBHostDevice *s);
148static void usb_host_detach_kernel(USBHostDevice *s);
149static void usb_host_attach_kernel(USBHostDevice *s);
150
151
152
153#ifndef LIBUSB_LOG_LEVEL_WARNING
154#define LIBUSB_LOG_LEVEL_WARNING 2
155#endif
156
157
158
159#define CONTROL_TIMEOUT 10000
160#define BULK_TIMEOUT 0
161#define INTR_TIMEOUT 0
162
163#ifndef LIBUSB_API_VERSION
164# define LIBUSB_API_VERSION LIBUSBX_API_VERSION
165#endif
166#if LIBUSB_API_VERSION >= 0x01000103
167# define HAVE_STREAMS 1
168#endif
169
170static const char *speed_name[] = {
171 [LIBUSB_SPEED_UNKNOWN] = "?",
172 [LIBUSB_SPEED_LOW] = "1.5",
173 [LIBUSB_SPEED_FULL] = "12",
174 [LIBUSB_SPEED_HIGH] = "480",
175 [LIBUSB_SPEED_SUPER] = "5000",
176};
177
178static const unsigned int speed_map[] = {
179 [LIBUSB_SPEED_LOW] = USB_SPEED_LOW,
180 [LIBUSB_SPEED_FULL] = USB_SPEED_FULL,
181 [LIBUSB_SPEED_HIGH] = USB_SPEED_HIGH,
182 [LIBUSB_SPEED_SUPER] = USB_SPEED_SUPER,
183};
184
185static const unsigned int status_map[] = {
186 [LIBUSB_TRANSFER_COMPLETED] = USB_RET_SUCCESS,
187 [LIBUSB_TRANSFER_ERROR] = USB_RET_IOERROR,
188 [LIBUSB_TRANSFER_TIMED_OUT] = USB_RET_IOERROR,
189 [LIBUSB_TRANSFER_CANCELLED] = USB_RET_IOERROR,
190 [LIBUSB_TRANSFER_STALL] = USB_RET_STALL,
191 [LIBUSB_TRANSFER_NO_DEVICE] = USB_RET_NODEV,
192 [LIBUSB_TRANSFER_OVERFLOW] = USB_RET_BABBLE,
193};
194
195static const char *err_names[] = {
196 [-LIBUSB_ERROR_IO] = "IO",
197 [-LIBUSB_ERROR_INVALID_PARAM] = "INVALID_PARAM",
198 [-LIBUSB_ERROR_ACCESS] = "ACCESS",
199 [-LIBUSB_ERROR_NO_DEVICE] = "NO_DEVICE",
200 [-LIBUSB_ERROR_NOT_FOUND] = "NOT_FOUND",
201 [-LIBUSB_ERROR_BUSY] = "BUSY",
202 [-LIBUSB_ERROR_TIMEOUT] = "TIMEOUT",
203 [-LIBUSB_ERROR_OVERFLOW] = "OVERFLOW",
204 [-LIBUSB_ERROR_PIPE] = "PIPE",
205 [-LIBUSB_ERROR_INTERRUPTED] = "INTERRUPTED",
206 [-LIBUSB_ERROR_NO_MEM] = "NO_MEM",
207 [-LIBUSB_ERROR_NOT_SUPPORTED] = "NOT_SUPPORTED",
208 [-LIBUSB_ERROR_OTHER] = "OTHER",
209};
210
211static libusb_context *ctx;
212static uint32_t loglevel;
213
214#ifndef CONFIG_WIN32
215
216static void usb_host_handle_fd(void *opaque)
217{
218 struct timeval tv = { 0, 0 };
219 libusb_handle_events_timeout(ctx, &tv);
220}
221
222static void usb_host_add_fd(int fd, short events, void *user_data)
223{
224 qemu_set_fd_handler(fd,
225 (events & POLLIN) ? usb_host_handle_fd : NULL,
226 (events & POLLOUT) ? usb_host_handle_fd : NULL,
227 ctx);
228}
229
230static void usb_host_del_fd(int fd, void *user_data)
231{
232 qemu_set_fd_handler(fd, NULL, NULL, NULL);
233}
234
235#endif
236
237static int usb_host_init(void)
238{
239#ifndef CONFIG_WIN32
240 const struct libusb_pollfd **poll;
241#endif
242 int rc;
243
244 if (ctx) {
245 return 0;
246 }
247 rc = libusb_init(&ctx);
248 if (rc != 0) {
249 return -1;
250 }
251#if LIBUSB_API_VERSION >= 0x01000106
252 libusb_set_option(ctx, LIBUSB_OPTION_LOG_LEVEL, loglevel);
253#else
254 libusb_set_debug(ctx, loglevel);
255#endif
256#ifdef CONFIG_WIN32
257
258#else
259 libusb_set_pollfd_notifiers(ctx, usb_host_add_fd,
260 usb_host_del_fd,
261 ctx);
262 poll = libusb_get_pollfds(ctx);
263 if (poll) {
264 int i;
265 for (i = 0; poll[i] != NULL; i++) {
266 usb_host_add_fd(poll[i]->fd, poll[i]->events, ctx);
267 }
268 }
269 free(poll);
270#endif
271 return 0;
272}
273
274static int usb_host_get_port(libusb_device *dev, char *port, size_t len)
275{
276 uint8_t path[7];
277 size_t off;
278 int rc, i;
279
280#if LIBUSB_API_VERSION >= 0x01000102
281 rc = libusb_get_port_numbers(dev, path, 7);
282#else
283 rc = libusb_get_port_path(ctx, dev, path, 7);
284#endif
285 if (rc < 0) {
286 return 0;
287 }
288 off = snprintf(port, len, "%d", path[0]);
289 for (i = 1; i < rc; i++) {
290 off += snprintf(port+off, len-off, ".%d", path[i]);
291 }
292 return off;
293}
294
295static void usb_host_libusb_error(const char *func, int rc)
296{
297 const char *errname;
298
299 if (rc >= 0) {
300 return;
301 }
302
303 if (-rc < ARRAY_SIZE(err_names) && err_names[-rc]) {
304 errname = err_names[-rc];
305 } else {
306 errname = "?";
307 }
308 error_report("%s: %d [%s]", func, rc, errname);
309}
310
311
312
313static bool usb_host_use_combining(USBEndpoint *ep)
314{
315 int type;
316
317 if (!ep->pipeline) {
318 return false;
319 }
320 if (ep->pid != USB_TOKEN_IN) {
321 return false;
322 }
323 type = usb_ep_get_type(ep->dev, ep->pid, ep->nr);
324 if (type != USB_ENDPOINT_XFER_BULK) {
325 return false;
326 }
327 return true;
328}
329
330
331
332static USBHostRequest *usb_host_req_alloc(USBHostDevice *s, USBPacket *p,
333 bool in, size_t bufsize)
334{
335 USBHostRequest *r = g_new0(USBHostRequest, 1);
336
337 r->host = s;
338 r->p = p;
339 r->in = in;
340 r->xfer = libusb_alloc_transfer(0);
341 if (bufsize) {
342 r->buffer = g_malloc(bufsize);
343 }
344 QTAILQ_INSERT_TAIL(&s->requests, r, next);
345 return r;
346}
347
348static void usb_host_req_free(USBHostRequest *r)
349{
350 if (r->host) {
351 QTAILQ_REMOVE(&r->host->requests, r, next);
352 }
353 libusb_free_transfer(r->xfer);
354 g_free(r->buffer);
355 g_free(r);
356}
357
358static USBHostRequest *usb_host_req_find(USBHostDevice *s, USBPacket *p)
359{
360 USBHostRequest *r;
361
362 QTAILQ_FOREACH(r, &s->requests, next) {
363 if (r->p == p) {
364 return r;
365 }
366 }
367 return NULL;
368}
369
370static void LIBUSB_CALL usb_host_req_complete_ctrl(struct libusb_transfer *xfer)
371{
372 USBHostRequest *r = xfer->user_data;
373 USBHostDevice *s = r->host;
374 bool disconnect = (xfer->status == LIBUSB_TRANSFER_NO_DEVICE);
375
376 if (r->p == NULL) {
377 goto out;
378 }
379
380 r->p->status = status_map[xfer->status];
381 r->p->actual_length = xfer->actual_length;
382 if (r->in && xfer->actual_length) {
383 memcpy(r->cbuf, r->buffer + 8, xfer->actual_length);
384
385
386
387 if (r->usb3ep0quirk && xfer->actual_length >= 18 &&
388 r->cbuf[7] == 9) {
389 r->cbuf[7] = 64;
390 }
391 }
392 trace_usb_host_req_complete(s->bus_num, s->addr, r->p,
393 r->p->status, r->p->actual_length);
394 usb_generic_async_ctrl_complete(USB_DEVICE(s), r->p);
395
396out:
397 usb_host_req_free(r);
398 if (disconnect) {
399 usb_host_nodev(s);
400 }
401}
402
403static void LIBUSB_CALL usb_host_req_complete_data(struct libusb_transfer *xfer)
404{
405 USBHostRequest *r = xfer->user_data;
406 USBHostDevice *s = r->host;
407 bool disconnect = (xfer->status == LIBUSB_TRANSFER_NO_DEVICE);
408
409 if (r->p == NULL) {
410 goto out;
411 }
412
413 r->p->status = status_map[xfer->status];
414 if (r->in && xfer->actual_length) {
415 usb_packet_copy(r->p, r->buffer, xfer->actual_length);
416 }
417 trace_usb_host_req_complete(s->bus_num, s->addr, r->p,
418 r->p->status, r->p->actual_length);
419 if (usb_host_use_combining(r->p->ep)) {
420 usb_combined_input_packet_complete(USB_DEVICE(s), r->p);
421 } else {
422 usb_packet_complete(USB_DEVICE(s), r->p);
423 }
424
425out:
426 usb_host_req_free(r);
427 if (disconnect) {
428 usb_host_nodev(s);
429 }
430}
431
432static void usb_host_req_abort(USBHostRequest *r)
433{
434 USBHostDevice *s = r->host;
435 bool inflight = (r->p && r->p->state == USB_PACKET_ASYNC);
436
437 if (inflight) {
438 r->p->status = USB_RET_NODEV;
439 trace_usb_host_req_complete(s->bus_num, s->addr, r->p,
440 r->p->status, r->p->actual_length);
441 if (r->p->ep->nr == 0) {
442 usb_generic_async_ctrl_complete(USB_DEVICE(s), r->p);
443 } else {
444 usb_packet_complete(USB_DEVICE(s), r->p);
445 }
446 r->p = NULL;
447 }
448
449 QTAILQ_REMOVE(&r->host->requests, r, next);
450 r->host = NULL;
451
452 if (inflight) {
453 libusb_cancel_transfer(r->xfer);
454 }
455}
456
457
458
459static void LIBUSB_CALL
460usb_host_req_complete_iso(struct libusb_transfer *transfer)
461{
462 USBHostIsoXfer *xfer = transfer->user_data;
463
464 if (!xfer) {
465
466 g_free(transfer->buffer);
467 libusb_free_transfer(transfer);
468 return;
469 }
470
471 QTAILQ_REMOVE(&xfer->ring->inflight, xfer, next);
472 if (QTAILQ_EMPTY(&xfer->ring->inflight)) {
473 USBHostDevice *s = xfer->ring->host;
474 trace_usb_host_iso_stop(s->bus_num, s->addr, xfer->ring->ep->nr);
475 }
476 if (xfer->ring->ep->pid == USB_TOKEN_IN) {
477 QTAILQ_INSERT_TAIL(&xfer->ring->copy, xfer, next);
478 usb_wakeup(xfer->ring->ep, 0);
479 } else {
480 QTAILQ_INSERT_TAIL(&xfer->ring->unused, xfer, next);
481 }
482}
483
484static USBHostIsoRing *usb_host_iso_alloc(USBHostDevice *s, USBEndpoint *ep)
485{
486 USBHostIsoRing *ring = g_new0(USBHostIsoRing, 1);
487 USBHostIsoXfer *xfer;
488
489 int packets = s->iso_urb_frames;
490 int i;
491
492 ring->host = s;
493 ring->ep = ep;
494 QTAILQ_INIT(&ring->unused);
495 QTAILQ_INIT(&ring->inflight);
496 QTAILQ_INIT(&ring->copy);
497 QTAILQ_INSERT_TAIL(&s->isorings, ring, next);
498
499 for (i = 0; i < s->iso_urb_count; i++) {
500 xfer = g_new0(USBHostIsoXfer, 1);
501 xfer->ring = ring;
502 xfer->xfer = libusb_alloc_transfer(packets);
503 xfer->xfer->dev_handle = s->dh;
504 xfer->xfer->type = LIBUSB_TRANSFER_TYPE_ISOCHRONOUS;
505
506 xfer->xfer->endpoint = ring->ep->nr;
507 if (ring->ep->pid == USB_TOKEN_IN) {
508 xfer->xfer->endpoint |= USB_DIR_IN;
509 }
510 xfer->xfer->callback = usb_host_req_complete_iso;
511 xfer->xfer->user_data = xfer;
512
513 xfer->xfer->num_iso_packets = packets;
514 xfer->xfer->length = ring->ep->max_packet_size * packets;
515 xfer->xfer->buffer = g_malloc0(xfer->xfer->length);
516
517 QTAILQ_INSERT_TAIL(&ring->unused, xfer, next);
518 }
519
520 return ring;
521}
522
523static USBHostIsoRing *usb_host_iso_find(USBHostDevice *s, USBEndpoint *ep)
524{
525 USBHostIsoRing *ring;
526
527 QTAILQ_FOREACH(ring, &s->isorings, next) {
528 if (ring->ep == ep) {
529 return ring;
530 }
531 }
532 return NULL;
533}
534
535static void usb_host_iso_reset_xfer(USBHostIsoXfer *xfer)
536{
537 libusb_set_iso_packet_lengths(xfer->xfer,
538 xfer->ring->ep->max_packet_size);
539 xfer->packet = 0;
540 xfer->copy_complete = false;
541}
542
543static void usb_host_iso_free_xfer(USBHostIsoXfer *xfer, bool inflight)
544{
545 if (inflight) {
546 xfer->xfer->user_data = NULL;
547 } else {
548 g_free(xfer->xfer->buffer);
549 libusb_free_transfer(xfer->xfer);
550 }
551 g_free(xfer);
552}
553
554static void usb_host_iso_free(USBHostIsoRing *ring)
555{
556 USBHostIsoXfer *xfer;
557
558 while ((xfer = QTAILQ_FIRST(&ring->inflight)) != NULL) {
559 QTAILQ_REMOVE(&ring->inflight, xfer, next);
560 usb_host_iso_free_xfer(xfer, true);
561 }
562 while ((xfer = QTAILQ_FIRST(&ring->unused)) != NULL) {
563 QTAILQ_REMOVE(&ring->unused, xfer, next);
564 usb_host_iso_free_xfer(xfer, false);
565 }
566 while ((xfer = QTAILQ_FIRST(&ring->copy)) != NULL) {
567 QTAILQ_REMOVE(&ring->copy, xfer, next);
568 usb_host_iso_free_xfer(xfer, false);
569 }
570
571 QTAILQ_REMOVE(&ring->host->isorings, ring, next);
572 g_free(ring);
573}
574
575static void usb_host_iso_free_all(USBHostDevice *s)
576{
577 USBHostIsoRing *ring;
578
579 while ((ring = QTAILQ_FIRST(&s->isorings)) != NULL) {
580 usb_host_iso_free(ring);
581 }
582}
583
584static bool usb_host_iso_data_copy(USBHostIsoXfer *xfer, USBPacket *p)
585{
586 unsigned int psize;
587 unsigned char *buf;
588
589 buf = libusb_get_iso_packet_buffer_simple(xfer->xfer, xfer->packet);
590 if (p->pid == USB_TOKEN_OUT) {
591 psize = p->iov.size;
592 if (psize > xfer->ring->ep->max_packet_size) {
593
594 psize = xfer->ring->ep->max_packet_size;
595 }
596 xfer->xfer->iso_packet_desc[xfer->packet].length = psize;
597 } else {
598 psize = xfer->xfer->iso_packet_desc[xfer->packet].actual_length;
599 if (psize > p->iov.size) {
600
601 psize = p->iov.size;
602 }
603 }
604 usb_packet_copy(p, buf, psize);
605 xfer->packet++;
606 xfer->copy_complete = (xfer->packet == xfer->xfer->num_iso_packets);
607 return xfer->copy_complete;
608}
609
610static void usb_host_iso_data_in(USBHostDevice *s, USBPacket *p)
611{
612 USBHostIsoRing *ring;
613 USBHostIsoXfer *xfer;
614 bool disconnect = false;
615 int rc;
616
617 ring = usb_host_iso_find(s, p->ep);
618 if (ring == NULL) {
619 ring = usb_host_iso_alloc(s, p->ep);
620 }
621
622
623 xfer = QTAILQ_FIRST(&ring->copy);
624 if (xfer != NULL) {
625 if (usb_host_iso_data_copy(xfer, p)) {
626 QTAILQ_REMOVE(&ring->copy, xfer, next);
627 QTAILQ_INSERT_TAIL(&ring->unused, xfer, next);
628 }
629 }
630
631
632 while ((xfer = QTAILQ_FIRST(&ring->unused)) != NULL) {
633 QTAILQ_REMOVE(&ring->unused, xfer, next);
634 usb_host_iso_reset_xfer(xfer);
635 rc = libusb_submit_transfer(xfer->xfer);
636 if (rc != 0) {
637 usb_host_libusb_error("libusb_submit_transfer [iso]", rc);
638 QTAILQ_INSERT_TAIL(&ring->unused, xfer, next);
639 if (rc == LIBUSB_ERROR_NO_DEVICE) {
640 disconnect = true;
641 }
642 break;
643 }
644 if (QTAILQ_EMPTY(&ring->inflight)) {
645 trace_usb_host_iso_start(s->bus_num, s->addr, p->ep->nr);
646 }
647 QTAILQ_INSERT_TAIL(&ring->inflight, xfer, next);
648 }
649
650 if (disconnect) {
651 usb_host_nodev(s);
652 }
653}
654
655static void usb_host_iso_data_out(USBHostDevice *s, USBPacket *p)
656{
657 USBHostIsoRing *ring;
658 USBHostIsoXfer *xfer;
659 bool disconnect = false;
660 int rc, filled = 0;
661
662 ring = usb_host_iso_find(s, p->ep);
663 if (ring == NULL) {
664 ring = usb_host_iso_alloc(s, p->ep);
665 }
666
667
668 xfer = QTAILQ_FIRST(&ring->copy);
669 while (xfer != NULL && xfer->copy_complete) {
670 filled++;
671 xfer = QTAILQ_NEXT(xfer, next);
672 }
673 if (xfer == NULL) {
674 xfer = QTAILQ_FIRST(&ring->unused);
675 if (xfer == NULL) {
676 trace_usb_host_iso_out_of_bufs(s->bus_num, s->addr, p->ep->nr);
677 return;
678 }
679 QTAILQ_REMOVE(&ring->unused, xfer, next);
680 usb_host_iso_reset_xfer(xfer);
681 QTAILQ_INSERT_TAIL(&ring->copy, xfer, next);
682 }
683 usb_host_iso_data_copy(xfer, p);
684
685 if (QTAILQ_EMPTY(&ring->inflight)) {
686
687
688 if (filled*2 < s->iso_urb_count) {
689 return;
690 }
691 }
692
693
694 while ((xfer = QTAILQ_FIRST(&ring->copy)) != NULL &&
695 xfer->copy_complete) {
696 QTAILQ_REMOVE(&ring->copy, xfer, next);
697 rc = libusb_submit_transfer(xfer->xfer);
698 if (rc != 0) {
699 usb_host_libusb_error("libusb_submit_transfer [iso]", rc);
700 QTAILQ_INSERT_TAIL(&ring->unused, xfer, next);
701 if (rc == LIBUSB_ERROR_NO_DEVICE) {
702 disconnect = true;
703 }
704 break;
705 }
706 if (QTAILQ_EMPTY(&ring->inflight)) {
707 trace_usb_host_iso_start(s->bus_num, s->addr, p->ep->nr);
708 }
709 QTAILQ_INSERT_TAIL(&ring->inflight, xfer, next);
710 }
711
712 if (disconnect) {
713 usb_host_nodev(s);
714 }
715}
716
717
718
719static void usb_host_speed_compat(USBHostDevice *s)
720{
721 USBDevice *udev = USB_DEVICE(s);
722 struct libusb_config_descriptor *conf;
723 const struct libusb_interface_descriptor *intf;
724 const struct libusb_endpoint_descriptor *endp;
725#ifdef HAVE_STREAMS
726 struct libusb_ss_endpoint_companion_descriptor *endp_ss_comp;
727#endif
728 bool compat_high = true;
729 bool compat_full = true;
730 uint8_t type;
731 int rc, c, i, a, e;
732
733 for (c = 0;; c++) {
734 rc = libusb_get_config_descriptor(s->dev, c, &conf);
735 if (rc != 0) {
736 break;
737 }
738 for (i = 0; i < conf->bNumInterfaces; i++) {
739 for (a = 0; a < conf->interface[i].num_altsetting; a++) {
740 intf = &conf->interface[i].altsetting[a];
741 for (e = 0; e < intf->bNumEndpoints; e++) {
742 endp = &intf->endpoint[e];
743 type = endp->bmAttributes & 0x3;
744 switch (type) {
745 case 0x01:
746 compat_full = false;
747 compat_high = false;
748 break;
749 case 0x02:
750#ifdef HAVE_STREAMS
751 rc = libusb_get_ss_endpoint_companion_descriptor
752 (ctx, endp, &endp_ss_comp);
753 if (rc == LIBUSB_SUCCESS) {
754 int streams = endp_ss_comp->bmAttributes & 0x1f;
755 if (streams) {
756 compat_full = false;
757 compat_high = false;
758 }
759 libusb_free_ss_endpoint_companion_descriptor
760 (endp_ss_comp);
761 }
762#endif
763 break;
764 case 0x03:
765 if (endp->wMaxPacketSize > 64) {
766 compat_full = false;
767 }
768 if (endp->wMaxPacketSize > 1024) {
769 compat_high = false;
770 }
771 break;
772 }
773 }
774 }
775 }
776 libusb_free_config_descriptor(conf);
777 }
778
779 udev->speedmask = (1 << udev->speed);
780 if (udev->speed == USB_SPEED_SUPER && compat_high) {
781 udev->speedmask |= USB_SPEED_MASK_HIGH;
782 }
783 if (udev->speed == USB_SPEED_SUPER && compat_full) {
784 udev->speedmask |= USB_SPEED_MASK_FULL;
785 }
786 if (udev->speed == USB_SPEED_HIGH && compat_full) {
787 udev->speedmask |= USB_SPEED_MASK_FULL;
788 }
789}
790
791static void usb_host_ep_update(USBHostDevice *s)
792{
793 static const char *tname[] = {
794 [USB_ENDPOINT_XFER_CONTROL] = "control",
795 [USB_ENDPOINT_XFER_ISOC] = "isoc",
796 [USB_ENDPOINT_XFER_BULK] = "bulk",
797 [USB_ENDPOINT_XFER_INT] = "int",
798 };
799 USBDevice *udev = USB_DEVICE(s);
800 struct libusb_config_descriptor *conf;
801 const struct libusb_interface_descriptor *intf;
802 const struct libusb_endpoint_descriptor *endp;
803#ifdef HAVE_STREAMS
804 struct libusb_ss_endpoint_companion_descriptor *endp_ss_comp;
805#endif
806 uint8_t devep, type;
807 int pid, ep;
808 int rc, i, e;
809
810 usb_ep_reset(udev);
811 rc = libusb_get_active_config_descriptor(s->dev, &conf);
812 if (rc != 0) {
813 return;
814 }
815 trace_usb_host_parse_config(s->bus_num, s->addr,
816 conf->bConfigurationValue, true);
817
818 for (i = 0; i < conf->bNumInterfaces; i++) {
819 assert(udev->altsetting[i] < conf->interface[i].num_altsetting);
820 intf = &conf->interface[i].altsetting[udev->altsetting[i]];
821 trace_usb_host_parse_interface(s->bus_num, s->addr,
822 intf->bInterfaceNumber,
823 intf->bAlternateSetting, true);
824 for (e = 0; e < intf->bNumEndpoints; e++) {
825 endp = &intf->endpoint[e];
826
827 devep = endp->bEndpointAddress;
828 pid = (devep & USB_DIR_IN) ? USB_TOKEN_IN : USB_TOKEN_OUT;
829 ep = devep & 0xf;
830 type = endp->bmAttributes & 0x3;
831
832 if (ep == 0) {
833 trace_usb_host_parse_error(s->bus_num, s->addr,
834 "invalid endpoint address");
835 return;
836 }
837 if (usb_ep_get_type(udev, pid, ep) != USB_ENDPOINT_XFER_INVALID) {
838 trace_usb_host_parse_error(s->bus_num, s->addr,
839 "duplicate endpoint address");
840 return;
841 }
842
843 trace_usb_host_parse_endpoint(s->bus_num, s->addr, ep,
844 (devep & USB_DIR_IN) ? "in" : "out",
845 tname[type], true);
846 usb_ep_set_max_packet_size(udev, pid, ep,
847 endp->wMaxPacketSize);
848 usb_ep_set_type(udev, pid, ep, type);
849 usb_ep_set_ifnum(udev, pid, ep, i);
850 usb_ep_set_halted(udev, pid, ep, 0);
851#ifdef HAVE_STREAMS
852 if (type == LIBUSB_TRANSFER_TYPE_BULK &&
853 libusb_get_ss_endpoint_companion_descriptor(ctx, endp,
854 &endp_ss_comp) == LIBUSB_SUCCESS) {
855 usb_ep_set_max_streams(udev, pid, ep,
856 endp_ss_comp->bmAttributes);
857 libusb_free_ss_endpoint_companion_descriptor(endp_ss_comp);
858 }
859#endif
860 }
861 }
862
863 libusb_free_config_descriptor(conf);
864}
865
866static int usb_host_open(USBHostDevice *s, libusb_device *dev)
867{
868 USBDevice *udev = USB_DEVICE(s);
869 int bus_num = libusb_get_bus_number(dev);
870 int addr = libusb_get_device_address(dev);
871 int rc;
872 Error *local_err = NULL;
873
874 if (s->bh_postld_pending) {
875 return -1;
876 }
877
878 trace_usb_host_open_started(bus_num, addr);
879
880 if (s->dh != NULL) {
881 goto fail;
882 }
883 rc = libusb_open(dev, &s->dh);
884 if (rc != 0) {
885 goto fail;
886 }
887
888 s->dev = dev;
889 s->bus_num = bus_num;
890 s->addr = addr;
891
892 usb_host_detach_kernel(s);
893
894 libusb_get_device_descriptor(dev, &s->ddesc);
895 usb_host_get_port(s->dev, s->port, sizeof(s->port));
896
897 usb_ep_init(udev);
898 usb_host_ep_update(s);
899
900 udev->speed = speed_map[libusb_get_device_speed(dev)];
901 usb_host_speed_compat(s);
902
903 if (s->ddesc.iProduct) {
904 libusb_get_string_descriptor_ascii(s->dh, s->ddesc.iProduct,
905 (unsigned char *)udev->product_desc,
906 sizeof(udev->product_desc));
907 } else {
908 snprintf(udev->product_desc, sizeof(udev->product_desc),
909 "host:%d.%d", bus_num, addr);
910 }
911
912 usb_device_attach(udev, &local_err);
913 if (local_err) {
914 error_report_err(local_err);
915 goto fail;
916 }
917
918 trace_usb_host_open_success(bus_num, addr);
919 return 0;
920
921fail:
922 trace_usb_host_open_failure(bus_num, addr);
923 if (s->dh != NULL) {
924 usb_host_release_interfaces(s);
925 libusb_reset_device(s->dh);
926 usb_host_attach_kernel(s);
927 libusb_close(s->dh);
928 s->dh = NULL;
929 s->dev = NULL;
930 }
931 return -1;
932}
933
934static void usb_host_abort_xfers(USBHostDevice *s)
935{
936 USBHostRequest *r, *rtmp;
937
938 QTAILQ_FOREACH_SAFE(r, &s->requests, next, rtmp) {
939 usb_host_req_abort(r);
940 }
941}
942
943static int usb_host_close(USBHostDevice *s)
944{
945 USBDevice *udev = USB_DEVICE(s);
946
947 if (s->dh == NULL) {
948 return -1;
949 }
950
951 trace_usb_host_close(s->bus_num, s->addr);
952
953 usb_host_abort_xfers(s);
954 usb_host_iso_free_all(s);
955
956 if (udev->attached) {
957 usb_device_detach(udev);
958 }
959
960 usb_host_release_interfaces(s);
961 libusb_reset_device(s->dh);
962 usb_host_attach_kernel(s);
963 libusb_close(s->dh);
964 s->dh = NULL;
965 s->dev = NULL;
966
967 usb_host_auto_check(NULL);
968 return 0;
969}
970
971static void usb_host_nodev_bh(void *opaque)
972{
973 USBHostDevice *s = opaque;
974 usb_host_close(s);
975}
976
977static void usb_host_nodev(USBHostDevice *s)
978{
979 if (!s->bh_nodev) {
980 s->bh_nodev = qemu_bh_new(usb_host_nodev_bh, s);
981 }
982 qemu_bh_schedule(s->bh_nodev);
983}
984
985static void usb_host_exit_notifier(struct Notifier *n, void *data)
986{
987 USBHostDevice *s = container_of(n, USBHostDevice, exit);
988
989 if (s->dh) {
990 usb_host_release_interfaces(s);
991 libusb_reset_device(s->dh);
992 usb_host_attach_kernel(s);
993 libusb_close(s->dh);
994 }
995}
996
997static libusb_device *usb_host_find_ref(int bus, int addr)
998{
999 libusb_device **devs = NULL;
1000 libusb_device *ret = NULL;
1001 int i, n;
1002
1003 if (usb_host_init() != 0) {
1004 return NULL;
1005 }
1006 n = libusb_get_device_list(ctx, &devs);
1007 for (i = 0; i < n; i++) {
1008 if (libusb_get_bus_number(devs[i]) == bus &&
1009 libusb_get_device_address(devs[i]) == addr) {
1010 ret = libusb_ref_device(devs[i]);
1011 break;
1012 }
1013 }
1014 libusb_free_device_list(devs, 1);
1015 return ret;
1016}
1017
1018static void usb_host_realize(USBDevice *udev, Error **errp)
1019{
1020 USBHostDevice *s = USB_HOST_DEVICE(udev);
1021 libusb_device *ldev;
1022 int rc;
1023
1024 if (s->match.vendor_id > 0xffff) {
1025 error_setg(errp, "vendorid out of range");
1026 return;
1027 }
1028 if (s->match.product_id > 0xffff) {
1029 error_setg(errp, "productid out of range");
1030 return;
1031 }
1032 if (s->match.addr > 127) {
1033 error_setg(errp, "hostaddr out of range");
1034 return;
1035 }
1036
1037 loglevel = s->loglevel;
1038 udev->flags |= (1 << USB_DEV_FLAG_IS_HOST);
1039 udev->auto_attach = 0;
1040 QTAILQ_INIT(&s->requests);
1041 QTAILQ_INIT(&s->isorings);
1042
1043 if (s->match.addr && s->match.bus_num &&
1044 !s->match.vendor_id &&
1045 !s->match.product_id &&
1046 !s->match.port) {
1047 s->needs_autoscan = false;
1048 ldev = usb_host_find_ref(s->match.bus_num,
1049 s->match.addr);
1050 if (!ldev) {
1051 error_setg(errp, "failed to find host usb device %d:%d",
1052 s->match.bus_num, s->match.addr);
1053 return;
1054 }
1055 rc = usb_host_open(s, ldev);
1056 libusb_unref_device(ldev);
1057 if (rc < 0) {
1058 error_setg(errp, "failed to open host usb device %d:%d",
1059 s->match.bus_num, s->match.addr);
1060 return;
1061 }
1062 } else {
1063 s->needs_autoscan = true;
1064 QTAILQ_INSERT_TAIL(&hostdevs, s, next);
1065 usb_host_auto_check(NULL);
1066 }
1067
1068 s->exit.notify = usb_host_exit_notifier;
1069 qemu_add_exit_notifier(&s->exit);
1070}
1071
1072static void usb_host_instance_init(Object *obj)
1073{
1074 USBDevice *udev = USB_DEVICE(obj);
1075 USBHostDevice *s = USB_HOST_DEVICE(udev);
1076
1077 device_add_bootindex_property(obj, &s->bootindex,
1078 "bootindex", NULL,
1079 &udev->qdev, NULL);
1080}
1081
1082static void usb_host_unrealize(USBDevice *udev, Error **errp)
1083{
1084 USBHostDevice *s = USB_HOST_DEVICE(udev);
1085
1086 qemu_remove_exit_notifier(&s->exit);
1087 if (s->needs_autoscan) {
1088 QTAILQ_REMOVE(&hostdevs, s, next);
1089 }
1090 usb_host_close(s);
1091}
1092
1093static void usb_host_cancel_packet(USBDevice *udev, USBPacket *p)
1094{
1095 USBHostDevice *s = USB_HOST_DEVICE(udev);
1096 USBHostRequest *r;
1097
1098 if (p->combined) {
1099 usb_combined_packet_cancel(udev, p);
1100 return;
1101 }
1102
1103 trace_usb_host_req_canceled(s->bus_num, s->addr, p);
1104
1105 r = usb_host_req_find(s, p);
1106 if (r && r->p) {
1107 r->p = NULL;
1108 libusb_cancel_transfer(r->xfer);
1109 }
1110}
1111
1112static void usb_host_detach_kernel(USBHostDevice *s)
1113{
1114 struct libusb_config_descriptor *conf;
1115 int rc, i;
1116
1117 rc = libusb_get_active_config_descriptor(s->dev, &conf);
1118 if (rc != 0) {
1119 return;
1120 }
1121 for (i = 0; i < USB_MAX_INTERFACES; i++) {
1122 rc = libusb_kernel_driver_active(s->dh, i);
1123 usb_host_libusb_error("libusb_kernel_driver_active", rc);
1124 if (rc != 1) {
1125 if (rc == 0) {
1126 s->ifs[i].detached = true;
1127 }
1128 continue;
1129 }
1130 trace_usb_host_detach_kernel(s->bus_num, s->addr, i);
1131 rc = libusb_detach_kernel_driver(s->dh, i);
1132 usb_host_libusb_error("libusb_detach_kernel_driver", rc);
1133 s->ifs[i].detached = true;
1134 }
1135 libusb_free_config_descriptor(conf);
1136}
1137
1138static void usb_host_attach_kernel(USBHostDevice *s)
1139{
1140 struct libusb_config_descriptor *conf;
1141 int rc, i;
1142
1143 rc = libusb_get_active_config_descriptor(s->dev, &conf);
1144 if (rc != 0) {
1145 return;
1146 }
1147 for (i = 0; i < USB_MAX_INTERFACES; i++) {
1148 if (!s->ifs[i].detached) {
1149 continue;
1150 }
1151 trace_usb_host_attach_kernel(s->bus_num, s->addr, i);
1152 libusb_attach_kernel_driver(s->dh, i);
1153 s->ifs[i].detached = false;
1154 }
1155 libusb_free_config_descriptor(conf);
1156}
1157
1158static int usb_host_claim_interfaces(USBHostDevice *s, int configuration)
1159{
1160 USBDevice *udev = USB_DEVICE(s);
1161 struct libusb_config_descriptor *conf;
1162 int rc, i, claimed;
1163
1164 for (i = 0; i < USB_MAX_INTERFACES; i++) {
1165 udev->altsetting[i] = 0;
1166 }
1167 udev->ninterfaces = 0;
1168 udev->configuration = 0;
1169
1170 usb_host_detach_kernel(s);
1171
1172 rc = libusb_get_active_config_descriptor(s->dev, &conf);
1173 if (rc != 0) {
1174 if (rc == LIBUSB_ERROR_NOT_FOUND) {
1175
1176 return USB_RET_SUCCESS;
1177 }
1178 return USB_RET_STALL;
1179 }
1180
1181 claimed = 0;
1182 for (i = 0; i < USB_MAX_INTERFACES; i++) {
1183 trace_usb_host_claim_interface(s->bus_num, s->addr, configuration, i);
1184 rc = libusb_claim_interface(s->dh, i);
1185 if (rc == 0) {
1186 s->ifs[i].claimed = true;
1187 if (++claimed == conf->bNumInterfaces) {
1188 break;
1189 }
1190 }
1191 }
1192 if (claimed != conf->bNumInterfaces) {
1193 return USB_RET_STALL;
1194 }
1195
1196 udev->ninterfaces = conf->bNumInterfaces;
1197 udev->configuration = configuration;
1198
1199 libusb_free_config_descriptor(conf);
1200 return USB_RET_SUCCESS;
1201}
1202
1203static void usb_host_release_interfaces(USBHostDevice *s)
1204{
1205 int i, rc;
1206
1207 for (i = 0; i < USB_MAX_INTERFACES; i++) {
1208 if (!s->ifs[i].claimed) {
1209 continue;
1210 }
1211 trace_usb_host_release_interface(s->bus_num, s->addr, i);
1212 rc = libusb_release_interface(s->dh, i);
1213 usb_host_libusb_error("libusb_release_interface", rc);
1214 s->ifs[i].claimed = false;
1215 }
1216}
1217
1218static void usb_host_set_address(USBHostDevice *s, int addr)
1219{
1220 USBDevice *udev = USB_DEVICE(s);
1221
1222 trace_usb_host_set_address(s->bus_num, s->addr, addr);
1223 udev->addr = addr;
1224}
1225
1226static void usb_host_set_config(USBHostDevice *s, int config, USBPacket *p)
1227{
1228 int rc = 0;
1229
1230 trace_usb_host_set_config(s->bus_num, s->addr, config);
1231
1232 usb_host_release_interfaces(s);
1233 if (s->ddesc.bNumConfigurations != 1) {
1234 rc = libusb_set_configuration(s->dh, config);
1235 if (rc != 0) {
1236 usb_host_libusb_error("libusb_set_configuration", rc);
1237 p->status = USB_RET_STALL;
1238 if (rc == LIBUSB_ERROR_NO_DEVICE) {
1239 usb_host_nodev(s);
1240 }
1241 return;
1242 }
1243 }
1244 p->status = usb_host_claim_interfaces(s, config);
1245 if (p->status != USB_RET_SUCCESS) {
1246 return;
1247 }
1248 usb_host_ep_update(s);
1249}
1250
1251static void usb_host_set_interface(USBHostDevice *s, int iface, int alt,
1252 USBPacket *p)
1253{
1254 USBDevice *udev = USB_DEVICE(s);
1255 int rc;
1256
1257 trace_usb_host_set_interface(s->bus_num, s->addr, iface, alt);
1258
1259 usb_host_iso_free_all(s);
1260
1261 if (iface >= USB_MAX_INTERFACES) {
1262 p->status = USB_RET_STALL;
1263 return;
1264 }
1265
1266 rc = libusb_set_interface_alt_setting(s->dh, iface, alt);
1267 if (rc != 0) {
1268 usb_host_libusb_error("libusb_set_interface_alt_setting", rc);
1269 p->status = USB_RET_STALL;
1270 if (rc == LIBUSB_ERROR_NO_DEVICE) {
1271 usb_host_nodev(s);
1272 }
1273 return;
1274 }
1275
1276 udev->altsetting[iface] = alt;
1277 usb_host_ep_update(s);
1278}
1279
1280static void usb_host_handle_control(USBDevice *udev, USBPacket *p,
1281 int request, int value, int index,
1282 int length, uint8_t *data)
1283{
1284 USBHostDevice *s = USB_HOST_DEVICE(udev);
1285 USBHostRequest *r;
1286 int rc;
1287
1288 trace_usb_host_req_control(s->bus_num, s->addr, p, request, value, index);
1289
1290 if (s->dh == NULL) {
1291 p->status = USB_RET_NODEV;
1292 trace_usb_host_req_emulated(s->bus_num, s->addr, p, p->status);
1293 return;
1294 }
1295
1296 switch (request) {
1297 case DeviceOutRequest | USB_REQ_SET_ADDRESS:
1298 usb_host_set_address(s, value);
1299 trace_usb_host_req_emulated(s->bus_num, s->addr, p, p->status);
1300 return;
1301
1302 case DeviceOutRequest | USB_REQ_SET_CONFIGURATION:
1303 usb_host_set_config(s, value & 0xff, p);
1304 trace_usb_host_req_emulated(s->bus_num, s->addr, p, p->status);
1305 return;
1306
1307 case InterfaceOutRequest | USB_REQ_SET_INTERFACE:
1308 usb_host_set_interface(s, index, value, p);
1309 trace_usb_host_req_emulated(s->bus_num, s->addr, p, p->status);
1310 return;
1311
1312 case EndpointOutRequest | USB_REQ_CLEAR_FEATURE:
1313 if (value == 0) {
1314 int pid = (index & USB_DIR_IN) ? USB_TOKEN_IN : USB_TOKEN_OUT;
1315 libusb_clear_halt(s->dh, index);
1316 usb_ep_set_halted(udev, pid, index & 0x0f, 0);
1317 trace_usb_host_req_emulated(s->bus_num, s->addr, p, p->status);
1318 return;
1319 }
1320 }
1321
1322 r = usb_host_req_alloc(s, p, (request >> 8) & USB_DIR_IN, length + 8);
1323 r->cbuf = data;
1324 r->clen = length;
1325 memcpy(r->buffer, udev->setup_buf, 8);
1326 if (!r->in) {
1327 memcpy(r->buffer + 8, r->cbuf, r->clen);
1328 }
1329
1330
1331
1332 if ((udev->speedmask & USB_SPEED_MASK_SUPER) &&
1333 !(udev->port->speedmask & USB_SPEED_MASK_SUPER) &&
1334 request == 0x8006 && value == 0x100 && index == 0) {
1335 r->usb3ep0quirk = true;
1336 }
1337
1338 libusb_fill_control_transfer(r->xfer, s->dh, r->buffer,
1339 usb_host_req_complete_ctrl, r,
1340 CONTROL_TIMEOUT);
1341 rc = libusb_submit_transfer(r->xfer);
1342 if (rc != 0) {
1343 p->status = USB_RET_NODEV;
1344 trace_usb_host_req_complete(s->bus_num, s->addr, p,
1345 p->status, p->actual_length);
1346 if (rc == LIBUSB_ERROR_NO_DEVICE) {
1347 usb_host_nodev(s);
1348 }
1349 return;
1350 }
1351
1352 p->status = USB_RET_ASYNC;
1353}
1354
1355static void usb_host_handle_data(USBDevice *udev, USBPacket *p)
1356{
1357 USBHostDevice *s = USB_HOST_DEVICE(udev);
1358 USBHostRequest *r;
1359 size_t size;
1360 int ep, rc;
1361
1362 if (usb_host_use_combining(p->ep) && p->state == USB_PACKET_SETUP) {
1363 p->status = USB_RET_ADD_TO_QUEUE;
1364 return;
1365 }
1366
1367 trace_usb_host_req_data(s->bus_num, s->addr, p,
1368 p->pid == USB_TOKEN_IN,
1369 p->ep->nr, p->iov.size);
1370
1371 if (s->dh == NULL) {
1372 p->status = USB_RET_NODEV;
1373 trace_usb_host_req_emulated(s->bus_num, s->addr, p, p->status);
1374 return;
1375 }
1376 if (p->ep->halted) {
1377 p->status = USB_RET_STALL;
1378 trace_usb_host_req_emulated(s->bus_num, s->addr, p, p->status);
1379 return;
1380 }
1381
1382 switch (usb_ep_get_type(udev, p->pid, p->ep->nr)) {
1383 case USB_ENDPOINT_XFER_BULK:
1384 size = usb_packet_size(p);
1385 r = usb_host_req_alloc(s, p, p->pid == USB_TOKEN_IN, size);
1386 if (!r->in) {
1387 usb_packet_copy(p, r->buffer, size);
1388 }
1389 ep = p->ep->nr | (r->in ? USB_DIR_IN : 0);
1390 if (p->stream) {
1391#ifdef HAVE_STREAMS
1392 libusb_fill_bulk_stream_transfer(r->xfer, s->dh, ep, p->stream,
1393 r->buffer, size,
1394 usb_host_req_complete_data, r,
1395 BULK_TIMEOUT);
1396#else
1397 usb_host_req_free(r);
1398 p->status = USB_RET_STALL;
1399 return;
1400#endif
1401 } else {
1402 libusb_fill_bulk_transfer(r->xfer, s->dh, ep,
1403 r->buffer, size,
1404 usb_host_req_complete_data, r,
1405 BULK_TIMEOUT);
1406 }
1407 break;
1408 case USB_ENDPOINT_XFER_INT:
1409 r = usb_host_req_alloc(s, p, p->pid == USB_TOKEN_IN, p->iov.size);
1410 if (!r->in) {
1411 usb_packet_copy(p, r->buffer, p->iov.size);
1412 }
1413 ep = p->ep->nr | (r->in ? USB_DIR_IN : 0);
1414 libusb_fill_interrupt_transfer(r->xfer, s->dh, ep,
1415 r->buffer, p->iov.size,
1416 usb_host_req_complete_data, r,
1417 INTR_TIMEOUT);
1418 break;
1419 case USB_ENDPOINT_XFER_ISOC:
1420 if (p->pid == USB_TOKEN_IN) {
1421 usb_host_iso_data_in(s, p);
1422 } else {
1423 usb_host_iso_data_out(s, p);
1424 }
1425 trace_usb_host_req_complete(s->bus_num, s->addr, p,
1426 p->status, p->actual_length);
1427 return;
1428 default:
1429 p->status = USB_RET_STALL;
1430 trace_usb_host_req_complete(s->bus_num, s->addr, p,
1431 p->status, p->actual_length);
1432 return;
1433 }
1434
1435 rc = libusb_submit_transfer(r->xfer);
1436 if (rc != 0) {
1437 p->status = USB_RET_NODEV;
1438 trace_usb_host_req_complete(s->bus_num, s->addr, p,
1439 p->status, p->actual_length);
1440 if (rc == LIBUSB_ERROR_NO_DEVICE) {
1441 usb_host_nodev(s);
1442 }
1443 return;
1444 }
1445
1446 p->status = USB_RET_ASYNC;
1447}
1448
1449static void usb_host_flush_ep_queue(USBDevice *dev, USBEndpoint *ep)
1450{
1451 if (usb_host_use_combining(ep)) {
1452 usb_ep_combine_input_packets(ep);
1453 }
1454}
1455
1456static void usb_host_handle_reset(USBDevice *udev)
1457{
1458 USBHostDevice *s = USB_HOST_DEVICE(udev);
1459 int rc;
1460
1461 if (!s->allow_guest_reset) {
1462 return;
1463 }
1464 if (udev->addr == 0) {
1465 return;
1466 }
1467
1468 trace_usb_host_reset(s->bus_num, s->addr);
1469
1470 rc = libusb_reset_device(s->dh);
1471 if (rc != 0) {
1472 usb_host_nodev(s);
1473 }
1474}
1475
1476static int usb_host_alloc_streams(USBDevice *udev, USBEndpoint **eps,
1477 int nr_eps, int streams)
1478{
1479#ifdef HAVE_STREAMS
1480 USBHostDevice *s = USB_HOST_DEVICE(udev);
1481 unsigned char endpoints[30];
1482 int i, rc;
1483
1484 for (i = 0; i < nr_eps; i++) {
1485 endpoints[i] = eps[i]->nr;
1486 if (eps[i]->pid == USB_TOKEN_IN) {
1487 endpoints[i] |= 0x80;
1488 }
1489 }
1490 rc = libusb_alloc_streams(s->dh, streams, endpoints, nr_eps);
1491 if (rc < 0) {
1492 usb_host_libusb_error("libusb_alloc_streams", rc);
1493 } else if (rc != streams) {
1494 error_report("libusb_alloc_streams: got less streams "
1495 "then requested %d < %d", rc, streams);
1496 }
1497
1498 return (rc == streams) ? 0 : -1;
1499#else
1500 error_report("libusb_alloc_streams: error not implemented");
1501 return -1;
1502#endif
1503}
1504
1505static void usb_host_free_streams(USBDevice *udev, USBEndpoint **eps,
1506 int nr_eps)
1507{
1508#ifdef HAVE_STREAMS
1509 USBHostDevice *s = USB_HOST_DEVICE(udev);
1510 unsigned char endpoints[30];
1511 int i;
1512
1513 for (i = 0; i < nr_eps; i++) {
1514 endpoints[i] = eps[i]->nr;
1515 if (eps[i]->pid == USB_TOKEN_IN) {
1516 endpoints[i] |= 0x80;
1517 }
1518 }
1519 libusb_free_streams(s->dh, endpoints, nr_eps);
1520#endif
1521}
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539static void usb_host_post_load_bh(void *opaque)
1540{
1541 USBHostDevice *dev = opaque;
1542 USBDevice *udev = USB_DEVICE(dev);
1543
1544 if (dev->dh != NULL) {
1545 usb_host_close(dev);
1546 }
1547 if (udev->attached) {
1548 usb_device_detach(udev);
1549 }
1550 dev->bh_postld_pending = false;
1551 usb_host_auto_check(NULL);
1552}
1553
1554static int usb_host_post_load(void *opaque, int version_id)
1555{
1556 USBHostDevice *dev = opaque;
1557
1558 if (!dev->bh_postld) {
1559 dev->bh_postld = qemu_bh_new(usb_host_post_load_bh, dev);
1560 }
1561 qemu_bh_schedule(dev->bh_postld);
1562 dev->bh_postld_pending = true;
1563 return 0;
1564}
1565
1566static const VMStateDescription vmstate_usb_host = {
1567 .name = "usb-host",
1568 .version_id = 1,
1569 .minimum_version_id = 1,
1570 .post_load = usb_host_post_load,
1571 .fields = (VMStateField[]) {
1572 VMSTATE_USB_DEVICE(parent_obj, USBHostDevice),
1573 VMSTATE_END_OF_LIST()
1574 }
1575};
1576
1577static Property usb_host_dev_properties[] = {
1578 DEFINE_PROP_UINT32("hostbus", USBHostDevice, match.bus_num, 0),
1579 DEFINE_PROP_UINT32("hostaddr", USBHostDevice, match.addr, 0),
1580 DEFINE_PROP_STRING("hostport", USBHostDevice, match.port),
1581 DEFINE_PROP_UINT32("vendorid", USBHostDevice, match.vendor_id, 0),
1582 DEFINE_PROP_UINT32("productid", USBHostDevice, match.product_id, 0),
1583 DEFINE_PROP_UINT32("isobufs", USBHostDevice, iso_urb_count, 4),
1584 DEFINE_PROP_UINT32("isobsize", USBHostDevice, iso_urb_frames, 32),
1585 DEFINE_PROP_BOOL("guest-reset", USBHostDevice, allow_guest_reset, true),
1586 DEFINE_PROP_UINT32("loglevel", USBHostDevice, loglevel,
1587 LIBUSB_LOG_LEVEL_WARNING),
1588 DEFINE_PROP_BIT("pipeline", USBHostDevice, options,
1589 USB_HOST_OPT_PIPELINE, true),
1590 DEFINE_PROP_END_OF_LIST(),
1591};
1592
1593static void usb_host_class_initfn(ObjectClass *klass, void *data)
1594{
1595 DeviceClass *dc = DEVICE_CLASS(klass);
1596 USBDeviceClass *uc = USB_DEVICE_CLASS(klass);
1597
1598 uc->realize = usb_host_realize;
1599 uc->product_desc = "USB Host Device";
1600 uc->cancel_packet = usb_host_cancel_packet;
1601 uc->handle_data = usb_host_handle_data;
1602 uc->handle_control = usb_host_handle_control;
1603 uc->handle_reset = usb_host_handle_reset;
1604 uc->unrealize = usb_host_unrealize;
1605 uc->flush_ep_queue = usb_host_flush_ep_queue;
1606 uc->alloc_streams = usb_host_alloc_streams;
1607 uc->free_streams = usb_host_free_streams;
1608 dc->vmsd = &vmstate_usb_host;
1609 dc->props = usb_host_dev_properties;
1610 set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories);
1611}
1612
1613static TypeInfo usb_host_dev_info = {
1614 .name = TYPE_USB_HOST_DEVICE,
1615 .parent = TYPE_USB_DEVICE,
1616 .instance_size = sizeof(USBHostDevice),
1617 .class_init = usb_host_class_initfn,
1618 .instance_init = usb_host_instance_init,
1619};
1620
1621static void usb_host_register_types(void)
1622{
1623 type_register_static(&usb_host_dev_info);
1624}
1625
1626type_init(usb_host_register_types)
1627
1628
1629
1630static QEMUTimer *usb_auto_timer;
1631static VMChangeStateEntry *usb_vmstate;
1632
1633static void usb_host_vm_state(void *unused, int running, RunState state)
1634{
1635 if (running) {
1636 usb_host_auto_check(unused);
1637 }
1638}
1639
1640static void usb_host_auto_check(void *unused)
1641{
1642 struct USBHostDevice *s;
1643 struct USBAutoFilter *f;
1644 libusb_device **devs = NULL;
1645 struct libusb_device_descriptor ddesc;
1646 int unconnected = 0;
1647 int i, n;
1648
1649 if (usb_host_init() != 0) {
1650 return;
1651 }
1652
1653 if (runstate_is_running()) {
1654 n = libusb_get_device_list(ctx, &devs);
1655 for (i = 0; i < n; i++) {
1656 if (libusb_get_device_descriptor(devs[i], &ddesc) != 0) {
1657 continue;
1658 }
1659 if (ddesc.bDeviceClass == LIBUSB_CLASS_HUB) {
1660 continue;
1661 }
1662 QTAILQ_FOREACH(s, &hostdevs, next) {
1663 f = &s->match;
1664 if (f->bus_num > 0 &&
1665 f->bus_num != libusb_get_bus_number(devs[i])) {
1666 continue;
1667 }
1668 if (f->addr > 0 &&
1669 f->addr != libusb_get_device_address(devs[i])) {
1670 continue;
1671 }
1672 if (f->port != NULL) {
1673 char port[16] = "-";
1674 usb_host_get_port(devs[i], port, sizeof(port));
1675 if (strcmp(f->port, port) != 0) {
1676 continue;
1677 }
1678 }
1679 if (f->vendor_id > 0 &&
1680 f->vendor_id != ddesc.idVendor) {
1681 continue;
1682 }
1683 if (f->product_id > 0 &&
1684 f->product_id != ddesc.idProduct) {
1685 continue;
1686 }
1687
1688
1689 s->seen++;
1690 if (s->errcount >= 3) {
1691 continue;
1692 }
1693 if (s->dh != NULL) {
1694 continue;
1695 }
1696 if (usb_host_open(s, devs[i]) < 0) {
1697 s->errcount++;
1698 continue;
1699 }
1700 break;
1701 }
1702 }
1703 libusb_free_device_list(devs, 1);
1704
1705 QTAILQ_FOREACH(s, &hostdevs, next) {
1706 if (s->dh == NULL) {
1707 unconnected++;
1708 }
1709 if (s->seen == 0) {
1710 if (s->dh) {
1711 usb_host_close(s);
1712 }
1713 s->errcount = 0;
1714 }
1715 s->seen = 0;
1716 }
1717
1718#if 0
1719 if (unconnected == 0) {
1720
1721 if (usb_auto_timer) {
1722 timer_del(usb_auto_timer);
1723 trace_usb_host_auto_scan_disabled();
1724 }
1725 return;
1726 }
1727#endif
1728 }
1729
1730 if (!usb_vmstate) {
1731 usb_vmstate = qemu_add_vm_change_state_handler(usb_host_vm_state, NULL);
1732 }
1733 if (!usb_auto_timer) {
1734 usb_auto_timer = timer_new_ms(QEMU_CLOCK_REALTIME, usb_host_auto_check, NULL);
1735 if (!usb_auto_timer) {
1736 return;
1737 }
1738 trace_usb_host_auto_scan_enabled();
1739 }
1740 timer_mod(usb_auto_timer, qemu_clock_get_ms(QEMU_CLOCK_REALTIME) + 2000);
1741}
1742
1743
1744
1745
1746bool usb_host_dev_is_scsi_storage(USBDevice *ud)
1747{
1748 USBHostDevice *uhd = USB_HOST_DEVICE(ud);
1749 struct libusb_config_descriptor *conf;
1750 const struct libusb_interface_descriptor *intf;
1751 bool is_scsi_storage = false;
1752 int i;
1753
1754 if (!uhd || libusb_get_active_config_descriptor(uhd->dev, &conf) != 0) {
1755 return false;
1756 }
1757
1758 for (i = 0; i < conf->bNumInterfaces; i++) {
1759 intf = &conf->interface[i].altsetting[ud->altsetting[i]];
1760 if (intf->bInterfaceClass == LIBUSB_CLASS_MASS_STORAGE &&
1761 intf->bInterfaceSubClass == 6) {
1762 is_scsi_storage = true;
1763 break;
1764 }
1765 }
1766
1767 libusb_free_config_descriptor(conf);
1768
1769 return is_scsi_storage;
1770}
1771
1772void hmp_info_usbhost(Monitor *mon, const QDict *qdict)
1773{
1774 libusb_device **devs = NULL;
1775 struct libusb_device_descriptor ddesc;
1776 char port[16];
1777 int i, n;
1778
1779 if (usb_host_init() != 0) {
1780 return;
1781 }
1782
1783 n = libusb_get_device_list(ctx, &devs);
1784 for (i = 0; i < n; i++) {
1785 if (libusb_get_device_descriptor(devs[i], &ddesc) != 0) {
1786 continue;
1787 }
1788 if (ddesc.bDeviceClass == LIBUSB_CLASS_HUB) {
1789 continue;
1790 }
1791 usb_host_get_port(devs[i], port, sizeof(port));
1792 monitor_printf(mon, " Bus %d, Addr %d, Port %s, Speed %s Mb/s\n",
1793 libusb_get_bus_number(devs[i]),
1794 libusb_get_device_address(devs[i]),
1795 port,
1796 speed_name[libusb_get_device_speed(devs[i])]);
1797 monitor_printf(mon, " Class %02x:", ddesc.bDeviceClass);
1798 monitor_printf(mon, " USB device %04x:%04x",
1799 ddesc.idVendor, ddesc.idProduct);
1800 if (ddesc.iProduct) {
1801 libusb_device_handle *handle;
1802 if (libusb_open(devs[i], &handle) == 0) {
1803 unsigned char name[64] = "";
1804 libusb_get_string_descriptor_ascii(handle,
1805 ddesc.iProduct,
1806 name, sizeof(name));
1807 libusb_close(handle);
1808 monitor_printf(mon, ", %s", name);
1809 }
1810 }
1811 monitor_printf(mon, "\n");
1812 }
1813 libusb_free_device_list(devs, 1);
1814}
1815
