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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 "qemu-common.h"
44#include "monitor/monitor.h"
45#include "qemu/error-report.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
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 usb_host_attach_kernel(s);
992 }
993}
994
995static libusb_device *usb_host_find_ref(int bus, int addr)
996{
997 libusb_device **devs = NULL;
998 libusb_device *ret = NULL;
999 int i, n;
1000
1001 if (usb_host_init() != 0) {
1002 return NULL;
1003 }
1004 n = libusb_get_device_list(ctx, &devs);
1005 for (i = 0; i < n; i++) {
1006 if (libusb_get_bus_number(devs[i]) == bus &&
1007 libusb_get_device_address(devs[i]) == addr) {
1008 ret = libusb_ref_device(devs[i]);
1009 break;
1010 }
1011 }
1012 libusb_free_device_list(devs, 1);
1013 return ret;
1014}
1015
1016static void usb_host_realize(USBDevice *udev, Error **errp)
1017{
1018 USBHostDevice *s = USB_HOST_DEVICE(udev);
1019 libusb_device *ldev;
1020 int rc;
1021
1022 if (s->match.vendor_id > 0xffff) {
1023 error_setg(errp, "vendorid out of range");
1024 return;
1025 }
1026 if (s->match.product_id > 0xffff) {
1027 error_setg(errp, "productid out of range");
1028 return;
1029 }
1030 if (s->match.addr > 127) {
1031 error_setg(errp, "hostaddr out of range");
1032 return;
1033 }
1034
1035 loglevel = s->loglevel;
1036 udev->flags |= (1 << USB_DEV_FLAG_IS_HOST);
1037 udev->auto_attach = 0;
1038 QTAILQ_INIT(&s->requests);
1039 QTAILQ_INIT(&s->isorings);
1040
1041 if (s->match.addr && s->match.bus_num &&
1042 !s->match.vendor_id &&
1043 !s->match.product_id &&
1044 !s->match.port) {
1045 s->needs_autoscan = false;
1046 ldev = usb_host_find_ref(s->match.bus_num,
1047 s->match.addr);
1048 if (!ldev) {
1049 error_setg(errp, "failed to find host usb device %d:%d",
1050 s->match.bus_num, s->match.addr);
1051 return;
1052 }
1053 rc = usb_host_open(s, ldev);
1054 libusb_unref_device(ldev);
1055 if (rc < 0) {
1056 error_setg(errp, "failed to open host usb device %d:%d",
1057 s->match.bus_num, s->match.addr);
1058 return;
1059 }
1060 } else {
1061 s->needs_autoscan = true;
1062 QTAILQ_INSERT_TAIL(&hostdevs, s, next);
1063 usb_host_auto_check(NULL);
1064 }
1065
1066 s->exit.notify = usb_host_exit_notifier;
1067 qemu_add_exit_notifier(&s->exit);
1068}
1069
1070static void usb_host_instance_init(Object *obj)
1071{
1072 USBDevice *udev = USB_DEVICE(obj);
1073 USBHostDevice *s = USB_HOST_DEVICE(udev);
1074
1075 device_add_bootindex_property(obj, &s->bootindex,
1076 "bootindex", NULL,
1077 &udev->qdev, NULL);
1078}
1079
1080static void usb_host_unrealize(USBDevice *udev, Error **errp)
1081{
1082 USBHostDevice *s = USB_HOST_DEVICE(udev);
1083
1084 qemu_remove_exit_notifier(&s->exit);
1085 if (s->needs_autoscan) {
1086 QTAILQ_REMOVE(&hostdevs, s, next);
1087 }
1088 usb_host_close(s);
1089}
1090
1091static void usb_host_cancel_packet(USBDevice *udev, USBPacket *p)
1092{
1093 USBHostDevice *s = USB_HOST_DEVICE(udev);
1094 USBHostRequest *r;
1095
1096 if (p->combined) {
1097 usb_combined_packet_cancel(udev, p);
1098 return;
1099 }
1100
1101 trace_usb_host_req_canceled(s->bus_num, s->addr, p);
1102
1103 r = usb_host_req_find(s, p);
1104 if (r && r->p) {
1105 r->p = NULL;
1106 libusb_cancel_transfer(r->xfer);
1107 }
1108}
1109
1110static void usb_host_detach_kernel(USBHostDevice *s)
1111{
1112 struct libusb_config_descriptor *conf;
1113 int rc, i;
1114
1115 rc = libusb_get_active_config_descriptor(s->dev, &conf);
1116 if (rc != 0) {
1117 return;
1118 }
1119 for (i = 0; i < USB_MAX_INTERFACES; i++) {
1120 rc = libusb_kernel_driver_active(s->dh, i);
1121 usb_host_libusb_error("libusb_kernel_driver_active", rc);
1122 if (rc != 1) {
1123 if (rc == 0) {
1124 s->ifs[i].detached = true;
1125 }
1126 continue;
1127 }
1128 trace_usb_host_detach_kernel(s->bus_num, s->addr, i);
1129 rc = libusb_detach_kernel_driver(s->dh, i);
1130 usb_host_libusb_error("libusb_detach_kernel_driver", rc);
1131 s->ifs[i].detached = true;
1132 }
1133 libusb_free_config_descriptor(conf);
1134}
1135
1136static void usb_host_attach_kernel(USBHostDevice *s)
1137{
1138 struct libusb_config_descriptor *conf;
1139 int rc, i;
1140
1141 rc = libusb_get_active_config_descriptor(s->dev, &conf);
1142 if (rc != 0) {
1143 return;
1144 }
1145 for (i = 0; i < USB_MAX_INTERFACES; i++) {
1146 if (!s->ifs[i].detached) {
1147 continue;
1148 }
1149 trace_usb_host_attach_kernel(s->bus_num, s->addr, i);
1150 libusb_attach_kernel_driver(s->dh, i);
1151 s->ifs[i].detached = false;
1152 }
1153 libusb_free_config_descriptor(conf);
1154}
1155
1156static int usb_host_claim_interfaces(USBHostDevice *s, int configuration)
1157{
1158 USBDevice *udev = USB_DEVICE(s);
1159 struct libusb_config_descriptor *conf;
1160 int rc, i, claimed;
1161
1162 for (i = 0; i < USB_MAX_INTERFACES; i++) {
1163 udev->altsetting[i] = 0;
1164 }
1165 udev->ninterfaces = 0;
1166 udev->configuration = 0;
1167
1168 usb_host_detach_kernel(s);
1169
1170 rc = libusb_get_active_config_descriptor(s->dev, &conf);
1171 if (rc != 0) {
1172 if (rc == LIBUSB_ERROR_NOT_FOUND) {
1173
1174 return USB_RET_SUCCESS;
1175 }
1176 return USB_RET_STALL;
1177 }
1178
1179 claimed = 0;
1180 for (i = 0; i < USB_MAX_INTERFACES; i++) {
1181 trace_usb_host_claim_interface(s->bus_num, s->addr, configuration, i);
1182 rc = libusb_claim_interface(s->dh, i);
1183 if (rc == 0) {
1184 s->ifs[i].claimed = true;
1185 if (++claimed == conf->bNumInterfaces) {
1186 break;
1187 }
1188 }
1189 }
1190 if (claimed != conf->bNumInterfaces) {
1191 return USB_RET_STALL;
1192 }
1193
1194 udev->ninterfaces = conf->bNumInterfaces;
1195 udev->configuration = configuration;
1196
1197 libusb_free_config_descriptor(conf);
1198 return USB_RET_SUCCESS;
1199}
1200
1201static void usb_host_release_interfaces(USBHostDevice *s)
1202{
1203 int i, rc;
1204
1205 for (i = 0; i < USB_MAX_INTERFACES; i++) {
1206 if (!s->ifs[i].claimed) {
1207 continue;
1208 }
1209 trace_usb_host_release_interface(s->bus_num, s->addr, i);
1210 rc = libusb_release_interface(s->dh, i);
1211 usb_host_libusb_error("libusb_release_interface", rc);
1212 s->ifs[i].claimed = false;
1213 }
1214}
1215
1216static void usb_host_set_address(USBHostDevice *s, int addr)
1217{
1218 USBDevice *udev = USB_DEVICE(s);
1219
1220 trace_usb_host_set_address(s->bus_num, s->addr, addr);
1221 udev->addr = addr;
1222}
1223
1224static void usb_host_set_config(USBHostDevice *s, int config, USBPacket *p)
1225{
1226 int rc;
1227
1228 trace_usb_host_set_config(s->bus_num, s->addr, config);
1229
1230 usb_host_release_interfaces(s);
1231 rc = libusb_set_configuration(s->dh, config);
1232 if (rc != 0) {
1233 usb_host_libusb_error("libusb_set_configuration", rc);
1234 p->status = USB_RET_STALL;
1235 if (rc == LIBUSB_ERROR_NO_DEVICE) {
1236 usb_host_nodev(s);
1237 }
1238 return;
1239 }
1240 p->status = usb_host_claim_interfaces(s, config);
1241 if (p->status != USB_RET_SUCCESS) {
1242 return;
1243 }
1244 usb_host_ep_update(s);
1245}
1246
1247static void usb_host_set_interface(USBHostDevice *s, int iface, int alt,
1248 USBPacket *p)
1249{
1250 USBDevice *udev = USB_DEVICE(s);
1251 int rc;
1252
1253 trace_usb_host_set_interface(s->bus_num, s->addr, iface, alt);
1254
1255 usb_host_iso_free_all(s);
1256
1257 if (iface >= USB_MAX_INTERFACES) {
1258 p->status = USB_RET_STALL;
1259 return;
1260 }
1261
1262 rc = libusb_set_interface_alt_setting(s->dh, iface, alt);
1263 if (rc != 0) {
1264 usb_host_libusb_error("libusb_set_interface_alt_setting", rc);
1265 p->status = USB_RET_STALL;
1266 if (rc == LIBUSB_ERROR_NO_DEVICE) {
1267 usb_host_nodev(s);
1268 }
1269 return;
1270 }
1271
1272 udev->altsetting[iface] = alt;
1273 usb_host_ep_update(s);
1274}
1275
1276static void usb_host_handle_control(USBDevice *udev, USBPacket *p,
1277 int request, int value, int index,
1278 int length, uint8_t *data)
1279{
1280 USBHostDevice *s = USB_HOST_DEVICE(udev);
1281 USBHostRequest *r;
1282 int rc;
1283
1284 trace_usb_host_req_control(s->bus_num, s->addr, p, request, value, index);
1285
1286 if (s->dh == NULL) {
1287 p->status = USB_RET_NODEV;
1288 trace_usb_host_req_emulated(s->bus_num, s->addr, p, p->status);
1289 return;
1290 }
1291
1292 switch (request) {
1293 case DeviceOutRequest | USB_REQ_SET_ADDRESS:
1294 usb_host_set_address(s, value);
1295 trace_usb_host_req_emulated(s->bus_num, s->addr, p, p->status);
1296 return;
1297
1298 case DeviceOutRequest | USB_REQ_SET_CONFIGURATION:
1299 usb_host_set_config(s, value & 0xff, p);
1300 trace_usb_host_req_emulated(s->bus_num, s->addr, p, p->status);
1301 return;
1302
1303 case InterfaceOutRequest | USB_REQ_SET_INTERFACE:
1304 usb_host_set_interface(s, index, value, p);
1305 trace_usb_host_req_emulated(s->bus_num, s->addr, p, p->status);
1306 return;
1307
1308 case EndpointOutRequest | USB_REQ_CLEAR_FEATURE:
1309 if (value == 0) {
1310 int pid = (index & USB_DIR_IN) ? USB_TOKEN_IN : USB_TOKEN_OUT;
1311 libusb_clear_halt(s->dh, index);
1312 usb_ep_set_halted(udev, pid, index & 0x0f, 0);
1313 trace_usb_host_req_emulated(s->bus_num, s->addr, p, p->status);
1314 return;
1315 }
1316 }
1317
1318 r = usb_host_req_alloc(s, p, (request >> 8) & USB_DIR_IN, length + 8);
1319 r->cbuf = data;
1320 r->clen = length;
1321 memcpy(r->buffer, udev->setup_buf, 8);
1322 if (!r->in) {
1323 memcpy(r->buffer + 8, r->cbuf, r->clen);
1324 }
1325
1326
1327
1328 if ((udev->speedmask & USB_SPEED_MASK_SUPER) &&
1329 !(udev->port->speedmask & USB_SPEED_MASK_SUPER) &&
1330 request == 0x8006 && value == 0x100 && index == 0) {
1331 r->usb3ep0quirk = true;
1332 }
1333
1334 libusb_fill_control_transfer(r->xfer, s->dh, r->buffer,
1335 usb_host_req_complete_ctrl, r,
1336 CONTROL_TIMEOUT);
1337 rc = libusb_submit_transfer(r->xfer);
1338 if (rc != 0) {
1339 p->status = USB_RET_NODEV;
1340 trace_usb_host_req_complete(s->bus_num, s->addr, p,
1341 p->status, p->actual_length);
1342 if (rc == LIBUSB_ERROR_NO_DEVICE) {
1343 usb_host_nodev(s);
1344 }
1345 return;
1346 }
1347
1348 p->status = USB_RET_ASYNC;
1349}
1350
1351static void usb_host_handle_data(USBDevice *udev, USBPacket *p)
1352{
1353 USBHostDevice *s = USB_HOST_DEVICE(udev);
1354 USBHostRequest *r;
1355 size_t size;
1356 int ep, rc;
1357
1358 if (usb_host_use_combining(p->ep) && p->state == USB_PACKET_SETUP) {
1359 p->status = USB_RET_ADD_TO_QUEUE;
1360 return;
1361 }
1362
1363 trace_usb_host_req_data(s->bus_num, s->addr, p,
1364 p->pid == USB_TOKEN_IN,
1365 p->ep->nr, p->iov.size);
1366
1367 if (s->dh == NULL) {
1368 p->status = USB_RET_NODEV;
1369 trace_usb_host_req_emulated(s->bus_num, s->addr, p, p->status);
1370 return;
1371 }
1372 if (p->ep->halted) {
1373 p->status = USB_RET_STALL;
1374 trace_usb_host_req_emulated(s->bus_num, s->addr, p, p->status);
1375 return;
1376 }
1377
1378 switch (usb_ep_get_type(udev, p->pid, p->ep->nr)) {
1379 case USB_ENDPOINT_XFER_BULK:
1380 size = usb_packet_size(p);
1381 r = usb_host_req_alloc(s, p, p->pid == USB_TOKEN_IN, size);
1382 if (!r->in) {
1383 usb_packet_copy(p, r->buffer, size);
1384 }
1385 ep = p->ep->nr | (r->in ? USB_DIR_IN : 0);
1386 if (p->stream) {
1387#ifdef HAVE_STREAMS
1388 libusb_fill_bulk_stream_transfer(r->xfer, s->dh, ep, p->stream,
1389 r->buffer, size,
1390 usb_host_req_complete_data, r,
1391 BULK_TIMEOUT);
1392#else
1393 usb_host_req_free(r);
1394 p->status = USB_RET_STALL;
1395 return;
1396#endif
1397 } else {
1398 libusb_fill_bulk_transfer(r->xfer, s->dh, ep,
1399 r->buffer, size,
1400 usb_host_req_complete_data, r,
1401 BULK_TIMEOUT);
1402 }
1403 break;
1404 case USB_ENDPOINT_XFER_INT:
1405 r = usb_host_req_alloc(s, p, p->pid == USB_TOKEN_IN, p->iov.size);
1406 if (!r->in) {
1407 usb_packet_copy(p, r->buffer, p->iov.size);
1408 }
1409 ep = p->ep->nr | (r->in ? USB_DIR_IN : 0);
1410 libusb_fill_interrupt_transfer(r->xfer, s->dh, ep,
1411 r->buffer, p->iov.size,
1412 usb_host_req_complete_data, r,
1413 INTR_TIMEOUT);
1414 break;
1415 case USB_ENDPOINT_XFER_ISOC:
1416 if (p->pid == USB_TOKEN_IN) {
1417 usb_host_iso_data_in(s, p);
1418 } else {
1419 usb_host_iso_data_out(s, p);
1420 }
1421 trace_usb_host_req_complete(s->bus_num, s->addr, p,
1422 p->status, p->actual_length);
1423 return;
1424 default:
1425 p->status = USB_RET_STALL;
1426 trace_usb_host_req_complete(s->bus_num, s->addr, p,
1427 p->status, p->actual_length);
1428 return;
1429 }
1430
1431 rc = libusb_submit_transfer(r->xfer);
1432 if (rc != 0) {
1433 p->status = USB_RET_NODEV;
1434 trace_usb_host_req_complete(s->bus_num, s->addr, p,
1435 p->status, p->actual_length);
1436 if (rc == LIBUSB_ERROR_NO_DEVICE) {
1437 usb_host_nodev(s);
1438 }
1439 return;
1440 }
1441
1442 p->status = USB_RET_ASYNC;
1443}
1444
1445static void usb_host_flush_ep_queue(USBDevice *dev, USBEndpoint *ep)
1446{
1447 if (usb_host_use_combining(ep)) {
1448 usb_ep_combine_input_packets(ep);
1449 }
1450}
1451
1452static void usb_host_handle_reset(USBDevice *udev)
1453{
1454 USBHostDevice *s = USB_HOST_DEVICE(udev);
1455 int rc;
1456
1457 trace_usb_host_reset(s->bus_num, s->addr);
1458
1459 rc = libusb_reset_device(s->dh);
1460 if (rc != 0) {
1461 usb_host_nodev(s);
1462 }
1463}
1464
1465static int usb_host_alloc_streams(USBDevice *udev, USBEndpoint **eps,
1466 int nr_eps, int streams)
1467{
1468#ifdef HAVE_STREAMS
1469 USBHostDevice *s = USB_HOST_DEVICE(udev);
1470 unsigned char endpoints[30];
1471 int i, rc;
1472
1473 for (i = 0; i < nr_eps; i++) {
1474 endpoints[i] = eps[i]->nr;
1475 if (eps[i]->pid == USB_TOKEN_IN) {
1476 endpoints[i] |= 0x80;
1477 }
1478 }
1479 rc = libusb_alloc_streams(s->dh, streams, endpoints, nr_eps);
1480 if (rc < 0) {
1481 usb_host_libusb_error("libusb_alloc_streams", rc);
1482 } else if (rc != streams) {
1483 error_report("libusb_alloc_streams: got less streams "
1484 "then requested %d < %d", rc, streams);
1485 }
1486
1487 return (rc == streams) ? 0 : -1;
1488#else
1489 error_report("libusb_alloc_streams: error not implemented");
1490 return -1;
1491#endif
1492}
1493
1494static void usb_host_free_streams(USBDevice *udev, USBEndpoint **eps,
1495 int nr_eps)
1496{
1497#ifdef HAVE_STREAMS
1498 USBHostDevice *s = USB_HOST_DEVICE(udev);
1499 unsigned char endpoints[30];
1500 int i;
1501
1502 for (i = 0; i < nr_eps; i++) {
1503 endpoints[i] = eps[i]->nr;
1504 if (eps[i]->pid == USB_TOKEN_IN) {
1505 endpoints[i] |= 0x80;
1506 }
1507 }
1508 libusb_free_streams(s->dh, endpoints, nr_eps);
1509#endif
1510}
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528static void usb_host_post_load_bh(void *opaque)
1529{
1530 USBHostDevice *dev = opaque;
1531 USBDevice *udev = USB_DEVICE(dev);
1532
1533 if (dev->dh != NULL) {
1534 usb_host_close(dev);
1535 }
1536 if (udev->attached) {
1537 usb_device_detach(udev);
1538 }
1539 dev->bh_postld_pending = false;
1540 usb_host_auto_check(NULL);
1541}
1542
1543static int usb_host_post_load(void *opaque, int version_id)
1544{
1545 USBHostDevice *dev = opaque;
1546
1547 if (!dev->bh_postld) {
1548 dev->bh_postld = qemu_bh_new(usb_host_post_load_bh, dev);
1549 }
1550 qemu_bh_schedule(dev->bh_postld);
1551 dev->bh_postld_pending = true;
1552 return 0;
1553}
1554
1555static const VMStateDescription vmstate_usb_host = {
1556 .name = "usb-host",
1557 .version_id = 1,
1558 .minimum_version_id = 1,
1559 .post_load = usb_host_post_load,
1560 .fields = (VMStateField[]) {
1561 VMSTATE_USB_DEVICE(parent_obj, USBHostDevice),
1562 VMSTATE_END_OF_LIST()
1563 }
1564};
1565
1566static Property usb_host_dev_properties[] = {
1567 DEFINE_PROP_UINT32("hostbus", USBHostDevice, match.bus_num, 0),
1568 DEFINE_PROP_UINT32("hostaddr", USBHostDevice, match.addr, 0),
1569 DEFINE_PROP_STRING("hostport", USBHostDevice, match.port),
1570 DEFINE_PROP_UINT32("vendorid", USBHostDevice, match.vendor_id, 0),
1571 DEFINE_PROP_UINT32("productid", USBHostDevice, match.product_id, 0),
1572 DEFINE_PROP_UINT32("isobufs", USBHostDevice, iso_urb_count, 4),
1573 DEFINE_PROP_UINT32("isobsize", USBHostDevice, iso_urb_frames, 32),
1574 DEFINE_PROP_UINT32("loglevel", USBHostDevice, loglevel,
1575 LIBUSB_LOG_LEVEL_WARNING),
1576 DEFINE_PROP_BIT("pipeline", USBHostDevice, options,
1577 USB_HOST_OPT_PIPELINE, true),
1578 DEFINE_PROP_END_OF_LIST(),
1579};
1580
1581static void usb_host_class_initfn(ObjectClass *klass, void *data)
1582{
1583 DeviceClass *dc = DEVICE_CLASS(klass);
1584 USBDeviceClass *uc = USB_DEVICE_CLASS(klass);
1585
1586 uc->realize = usb_host_realize;
1587 uc->product_desc = "USB Host Device";
1588 uc->cancel_packet = usb_host_cancel_packet;
1589 uc->handle_data = usb_host_handle_data;
1590 uc->handle_control = usb_host_handle_control;
1591 uc->handle_reset = usb_host_handle_reset;
1592 uc->unrealize = usb_host_unrealize;
1593 uc->flush_ep_queue = usb_host_flush_ep_queue;
1594 uc->alloc_streams = usb_host_alloc_streams;
1595 uc->free_streams = usb_host_free_streams;
1596 dc->vmsd = &vmstate_usb_host;
1597 dc->props = usb_host_dev_properties;
1598 set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories);
1599}
1600
1601static TypeInfo usb_host_dev_info = {
1602 .name = TYPE_USB_HOST_DEVICE,
1603 .parent = TYPE_USB_DEVICE,
1604 .instance_size = sizeof(USBHostDevice),
1605 .class_init = usb_host_class_initfn,
1606 .instance_init = usb_host_instance_init,
1607};
1608
1609static void usb_host_register_types(void)
1610{
1611 type_register_static(&usb_host_dev_info);
1612}
1613
1614type_init(usb_host_register_types)
1615
1616
1617
1618static QEMUTimer *usb_auto_timer;
1619static VMChangeStateEntry *usb_vmstate;
1620
1621static void usb_host_vm_state(void *unused, int running, RunState state)
1622{
1623 if (running) {
1624 usb_host_auto_check(unused);
1625 }
1626}
1627
1628static void usb_host_auto_check(void *unused)
1629{
1630 struct USBHostDevice *s;
1631 struct USBAutoFilter *f;
1632 libusb_device **devs = NULL;
1633 struct libusb_device_descriptor ddesc;
1634 int unconnected = 0;
1635 int i, n;
1636
1637 if (usb_host_init() != 0) {
1638 return;
1639 }
1640
1641 if (runstate_is_running()) {
1642 n = libusb_get_device_list(ctx, &devs);
1643 for (i = 0; i < n; i++) {
1644 if (libusb_get_device_descriptor(devs[i], &ddesc) != 0) {
1645 continue;
1646 }
1647 if (ddesc.bDeviceClass == LIBUSB_CLASS_HUB) {
1648 continue;
1649 }
1650 QTAILQ_FOREACH(s, &hostdevs, next) {
1651 f = &s->match;
1652 if (f->bus_num > 0 &&
1653 f->bus_num != libusb_get_bus_number(devs[i])) {
1654 continue;
1655 }
1656 if (f->addr > 0 &&
1657 f->addr != libusb_get_device_address(devs[i])) {
1658 continue;
1659 }
1660 if (f->port != NULL) {
1661 char port[16] = "-";
1662 usb_host_get_port(devs[i], port, sizeof(port));
1663 if (strcmp(f->port, port) != 0) {
1664 continue;
1665 }
1666 }
1667 if (f->vendor_id > 0 &&
1668 f->vendor_id != ddesc.idVendor) {
1669 continue;
1670 }
1671 if (f->product_id > 0 &&
1672 f->product_id != ddesc.idProduct) {
1673 continue;
1674 }
1675
1676
1677 s->seen++;
1678 if (s->errcount >= 3) {
1679 continue;
1680 }
1681 if (s->dh != NULL) {
1682 continue;
1683 }
1684 if (usb_host_open(s, devs[i]) < 0) {
1685 s->errcount++;
1686 continue;
1687 }
1688 break;
1689 }
1690 }
1691 libusb_free_device_list(devs, 1);
1692
1693 QTAILQ_FOREACH(s, &hostdevs, next) {
1694 if (s->dh == NULL) {
1695 unconnected++;
1696 }
1697 if (s->seen == 0) {
1698 if (s->dh) {
1699 usb_host_close(s);
1700 }
1701 s->errcount = 0;
1702 }
1703 s->seen = 0;
1704 }
1705
1706#if 0
1707 if (unconnected == 0) {
1708
1709 if (usb_auto_timer) {
1710 timer_del(usb_auto_timer);
1711 trace_usb_host_auto_scan_disabled();
1712 }
1713 return;
1714 }
1715#endif
1716 }
1717
1718 if (!usb_vmstate) {
1719 usb_vmstate = qemu_add_vm_change_state_handler(usb_host_vm_state, NULL);
1720 }
1721 if (!usb_auto_timer) {
1722 usb_auto_timer = timer_new_ms(QEMU_CLOCK_REALTIME, usb_host_auto_check, NULL);
1723 if (!usb_auto_timer) {
1724 return;
1725 }
1726 trace_usb_host_auto_scan_enabled();
1727 }
1728 timer_mod(usb_auto_timer, qemu_clock_get_ms(QEMU_CLOCK_REALTIME) + 2000);
1729}
1730
1731
1732
1733
1734bool usb_host_dev_is_scsi_storage(USBDevice *ud)
1735{
1736 USBHostDevice *uhd = USB_HOST_DEVICE(ud);
1737 struct libusb_config_descriptor *conf;
1738 const struct libusb_interface_descriptor *intf;
1739 bool is_scsi_storage = false;
1740 int i;
1741
1742 if (!uhd || libusb_get_active_config_descriptor(uhd->dev, &conf) != 0) {
1743 return false;
1744 }
1745
1746 for (i = 0; i < conf->bNumInterfaces; i++) {
1747 intf = &conf->interface[i].altsetting[ud->altsetting[i]];
1748 if (intf->bInterfaceClass == LIBUSB_CLASS_MASS_STORAGE &&
1749 intf->bInterfaceSubClass == 6) {
1750 is_scsi_storage = true;
1751 break;
1752 }
1753 }
1754
1755 libusb_free_config_descriptor(conf);
1756
1757 return is_scsi_storage;
1758}
1759
1760void hmp_info_usbhost(Monitor *mon, const QDict *qdict)
1761{
1762 libusb_device **devs = NULL;
1763 struct libusb_device_descriptor ddesc;
1764 char port[16];
1765 int i, n;
1766
1767 if (usb_host_init() != 0) {
1768 return;
1769 }
1770
1771 n = libusb_get_device_list(ctx, &devs);
1772 for (i = 0; i < n; i++) {
1773 if (libusb_get_device_descriptor(devs[i], &ddesc) != 0) {
1774 continue;
1775 }
1776 if (ddesc.bDeviceClass == LIBUSB_CLASS_HUB) {
1777 continue;
1778 }
1779 usb_host_get_port(devs[i], port, sizeof(port));
1780 monitor_printf(mon, " Bus %d, Addr %d, Port %s, Speed %s Mb/s\n",
1781 libusb_get_bus_number(devs[i]),
1782 libusb_get_device_address(devs[i]),
1783 port,
1784 speed_name[libusb_get_device_speed(devs[i])]);
1785 monitor_printf(mon, " Class %02x:", ddesc.bDeviceClass);
1786 monitor_printf(mon, " USB device %04x:%04x",
1787 ddesc.idVendor, ddesc.idProduct);
1788 if (ddesc.iProduct) {
1789 libusb_device_handle *handle;
1790 if (libusb_open(devs[i], &handle) == 0) {
1791 unsigned char name[64] = "";
1792 libusb_get_string_descriptor_ascii(handle,
1793 ddesc.iProduct,
1794 name, sizeof(name));
1795 libusb_close(handle);
1796 monitor_printf(mon, ", %s", name);
1797 }
1798 }
1799 monitor_printf(mon, "\n");
1800 }
1801 libusb_free_device_list(devs, 1);
1802}
1803
