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2b2325ff GH |
1 | /* |
2 | * Linux host USB redirector | |
3 | * | |
4 | * Copyright (c) 2005 Fabrice Bellard | |
5 | * | |
6 | * Copyright (c) 2008 Max Krasnyansky | |
7 | * Support for host device auto connect & disconnect | |
8 | * Major rewrite to support fully async operation | |
9 | * | |
10 | * Copyright 2008 TJ <linux@tjworld.net> | |
11 | * Added flexible support for /dev/bus/usb /sys/bus/usb/devices in addition | |
12 | * to the legacy /proc/bus/usb USB device discovery and handling | |
13 | * | |
14 | * (c) 2012 Gerd Hoffmann <kraxel@redhat.com> | |
15 | * Completely rewritten to use libusb instead of usbfs ioctls. | |
16 | * | |
17 | * Permission is hereby granted, free of charge, to any person obtaining a copy | |
18 | * of this software and associated documentation files (the "Software"), to deal | |
19 | * in the Software without restriction, including without limitation the rights | |
20 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
21 | * copies of the Software, and to permit persons to whom the Software is | |
22 | * furnished to do so, subject to the following conditions: | |
23 | * | |
24 | * The above copyright notice and this permission notice shall be included in | |
25 | * all copies or substantial portions of the Software. | |
26 | * | |
27 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
28 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
29 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
30 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
31 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
32 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | |
33 | * THE SOFTWARE. | |
34 | */ | |
35 | ||
36 | #include <poll.h> | |
37 | #include <libusb.h> | |
38 | ||
39 | #include "qemu-common.h" | |
40 | #include "monitor/monitor.h" | |
41 | #include "sysemu/sysemu.h" | |
42 | #include "trace.h" | |
43 | ||
44 | #include "hw/usb.h" | |
45 | ||
46 | /* ------------------------------------------------------------------------ */ | |
47 | ||
48 | #define TYPE_USB_HOST_DEVICE "usb-host" | |
49 | #define USB_HOST_DEVICE(obj) \ | |
50 | OBJECT_CHECK(USBHostDevice, (obj), TYPE_USB_HOST_DEVICE) | |
51 | ||
52 | typedef struct USBHostDevice USBHostDevice; | |
53 | typedef struct USBHostRequest USBHostRequest; | |
54 | typedef struct USBHostIsoXfer USBHostIsoXfer; | |
55 | typedef struct USBHostIsoRing USBHostIsoRing; | |
56 | ||
57 | struct USBAutoFilter { | |
58 | uint32_t bus_num; | |
59 | uint32_t addr; | |
60 | char *port; | |
61 | uint32_t vendor_id; | |
62 | uint32_t product_id; | |
63 | }; | |
64 | ||
65 | enum USBHostDeviceOptions { | |
66 | USB_HOST_OPT_PIPELINE, | |
67 | }; | |
68 | ||
69 | struct USBHostDevice { | |
70 | USBDevice parent_obj; | |
71 | ||
72 | /* properties */ | |
73 | struct USBAutoFilter match; | |
74 | int32_t bootindex; | |
75 | uint32_t iso_urb_count; | |
76 | uint32_t iso_urb_frames; | |
77 | uint32_t options; | |
78 | uint32_t loglevel; | |
79 | ||
80 | /* state */ | |
81 | QTAILQ_ENTRY(USBHostDevice) next; | |
82 | int seen, errcount; | |
83 | int bus_num; | |
84 | int addr; | |
85 | char port[16]; | |
86 | ||
87 | libusb_device *dev; | |
88 | libusb_device_handle *dh; | |
89 | struct libusb_device_descriptor ddesc; | |
90 | ||
91 | struct { | |
92 | bool detached; | |
93 | bool claimed; | |
94 | } ifs[USB_MAX_INTERFACES]; | |
95 | ||
96 | /* callbacks & friends */ | |
97 | QEMUBH *bh; | |
98 | Notifier exit; | |
99 | ||
100 | /* request queues */ | |
101 | QTAILQ_HEAD(, USBHostRequest) requests; | |
102 | QTAILQ_HEAD(, USBHostIsoRing) isorings; | |
103 | }; | |
104 | ||
105 | struct USBHostRequest { | |
106 | USBHostDevice *host; | |
107 | USBPacket *p; | |
108 | bool in; | |
109 | struct libusb_transfer *xfer; | |
110 | unsigned char *buffer; | |
111 | unsigned char *cbuf; | |
112 | unsigned int clen; | |
113 | QTAILQ_ENTRY(USBHostRequest) next; | |
114 | }; | |
115 | ||
116 | struct USBHostIsoXfer { | |
117 | USBHostIsoRing *ring; | |
118 | struct libusb_transfer *xfer; | |
119 | bool copy_complete; | |
120 | unsigned int packet; | |
121 | QTAILQ_ENTRY(USBHostIsoXfer) next; | |
122 | }; | |
123 | ||
124 | struct USBHostIsoRing { | |
125 | USBHostDevice *host; | |
126 | USBEndpoint *ep; | |
127 | QTAILQ_HEAD(, USBHostIsoXfer) unused; | |
128 | QTAILQ_HEAD(, USBHostIsoXfer) inflight; | |
129 | QTAILQ_HEAD(, USBHostIsoXfer) copy; | |
130 | QTAILQ_ENTRY(USBHostIsoRing) next; | |
131 | }; | |
132 | ||
133 | static QTAILQ_HEAD(, USBHostDevice) hostdevs = | |
134 | QTAILQ_HEAD_INITIALIZER(hostdevs); | |
135 | ||
136 | static void usb_host_auto_check(void *unused); | |
137 | static void usb_host_release_interfaces(USBHostDevice *s); | |
138 | static void usb_host_nodev(USBHostDevice *s); | |
139 | static void usb_host_attach_kernel(USBHostDevice *s); | |
140 | ||
141 | /* ------------------------------------------------------------------------ */ | |
142 | ||
143 | #define CONTROL_TIMEOUT 10000 /* 10 sec */ | |
144 | #define BULK_TIMEOUT 0 /* unlimited */ | |
145 | #define INTR_TIMEOUT 0 /* unlimited */ | |
146 | ||
147 | static const char *speed_name[] = { | |
148 | [LIBUSB_SPEED_UNKNOWN] = "?", | |
149 | [LIBUSB_SPEED_LOW] = "1.5", | |
150 | [LIBUSB_SPEED_FULL] = "12", | |
151 | [LIBUSB_SPEED_HIGH] = "480", | |
152 | [LIBUSB_SPEED_SUPER] = "5000", | |
153 | }; | |
154 | ||
155 | static const unsigned int speed_map[] = { | |
156 | [LIBUSB_SPEED_LOW] = USB_SPEED_LOW, | |
157 | [LIBUSB_SPEED_FULL] = USB_SPEED_FULL, | |
158 | [LIBUSB_SPEED_HIGH] = USB_SPEED_HIGH, | |
159 | [LIBUSB_SPEED_SUPER] = USB_SPEED_SUPER, | |
160 | }; | |
161 | ||
162 | static const unsigned int status_map[] = { | |
163 | [LIBUSB_TRANSFER_COMPLETED] = USB_RET_SUCCESS, | |
164 | [LIBUSB_TRANSFER_ERROR] = USB_RET_IOERROR, | |
165 | [LIBUSB_TRANSFER_TIMED_OUT] = USB_RET_IOERROR, | |
166 | [LIBUSB_TRANSFER_CANCELLED] = USB_RET_IOERROR, | |
167 | [LIBUSB_TRANSFER_STALL] = USB_RET_STALL, | |
168 | [LIBUSB_TRANSFER_NO_DEVICE] = USB_RET_NODEV, | |
169 | [LIBUSB_TRANSFER_OVERFLOW] = USB_RET_BABBLE, | |
170 | }; | |
171 | ||
172 | static const char *err_names[] = { | |
173 | [-LIBUSB_ERROR_IO] = "IO", | |
174 | [-LIBUSB_ERROR_INVALID_PARAM] = "INVALID_PARAM", | |
175 | [-LIBUSB_ERROR_ACCESS] = "ACCESS", | |
176 | [-LIBUSB_ERROR_NO_DEVICE] = "NO_DEVICE", | |
177 | [-LIBUSB_ERROR_NOT_FOUND] = "NOT_FOUND", | |
178 | [-LIBUSB_ERROR_BUSY] = "BUSY", | |
179 | [-LIBUSB_ERROR_TIMEOUT] = "TIMEOUT", | |
180 | [-LIBUSB_ERROR_OVERFLOW] = "OVERFLOW", | |
181 | [-LIBUSB_ERROR_PIPE] = "PIPE", | |
182 | [-LIBUSB_ERROR_INTERRUPTED] = "INTERRUPTED", | |
183 | [-LIBUSB_ERROR_NO_MEM] = "NO_MEM", | |
184 | [-LIBUSB_ERROR_NOT_SUPPORTED] = "NOT_SUPPORTED", | |
185 | [-LIBUSB_ERROR_OTHER] = "OTHER", | |
186 | }; | |
187 | ||
188 | static libusb_context *ctx; | |
189 | static uint32_t loglevel; | |
190 | ||
191 | static void usb_host_handle_fd(void *opaque) | |
192 | { | |
193 | struct timeval tv = { 0, 0 }; | |
194 | libusb_handle_events_timeout(ctx, &tv); | |
195 | } | |
196 | ||
197 | static void usb_host_add_fd(int fd, short events, void *user_data) | |
198 | { | |
199 | qemu_set_fd_handler(fd, | |
200 | (events & POLLIN) ? usb_host_handle_fd : NULL, | |
201 | (events & POLLOUT) ? usb_host_handle_fd : NULL, | |
202 | ctx); | |
203 | } | |
204 | ||
205 | static void usb_host_del_fd(int fd, void *user_data) | |
206 | { | |
207 | qemu_set_fd_handler(fd, NULL, NULL, NULL); | |
208 | } | |
209 | ||
210 | static int usb_host_init(void) | |
211 | { | |
212 | const struct libusb_pollfd **poll; | |
213 | int i, rc; | |
214 | ||
215 | if (ctx) { | |
216 | return 0; | |
217 | } | |
218 | rc = libusb_init(&ctx); | |
219 | if (rc != 0) { | |
220 | return -1; | |
221 | } | |
222 | libusb_set_debug(ctx, loglevel); | |
223 | ||
224 | libusb_set_pollfd_notifiers(ctx, usb_host_add_fd, | |
225 | usb_host_del_fd, | |
226 | ctx); | |
227 | poll = libusb_get_pollfds(ctx); | |
228 | if (poll) { | |
229 | for (i = 0; poll[i] != NULL; i++) { | |
230 | usb_host_add_fd(poll[i]->fd, poll[i]->events, ctx); | |
231 | } | |
232 | } | |
233 | free(poll); | |
234 | return 0; | |
235 | } | |
236 | ||
237 | static int usb_host_get_port(libusb_device *dev, char *port, size_t len) | |
238 | { | |
2b2325ff GH |
239 | uint8_t path[7]; |
240 | size_t off; | |
241 | int rc, i; | |
242 | ||
243 | rc = libusb_get_port_path(ctx, dev, path, 7); | |
244 | if (rc < 0) { | |
245 | return 0; | |
246 | } | |
247 | off = snprintf(port, len, "%d", path[0]); | |
248 | for (i = 1; i < rc; i++) { | |
249 | off += snprintf(port+off, len-off, ".%d", path[i]); | |
250 | } | |
251 | return off; | |
2b2325ff GH |
252 | } |
253 | ||
254 | static void usb_host_libusb_error(const char *func, int rc) | |
255 | { | |
256 | const char *errname; | |
257 | ||
258 | if (rc >= 0) { | |
259 | return; | |
260 | } | |
261 | ||
262 | if (-rc < ARRAY_SIZE(err_names) && err_names[-rc]) { | |
263 | errname = err_names[-rc]; | |
264 | } else { | |
265 | errname = "?"; | |
266 | } | |
267 | fprintf(stderr, "%s: %d [%s]\n", func, rc, errname); | |
268 | } | |
269 | ||
270 | /* ------------------------------------------------------------------------ */ | |
271 | ||
272 | static bool usb_host_use_combining(USBEndpoint *ep) | |
273 | { | |
274 | int type; | |
275 | ||
276 | if (!ep->pipeline) { | |
277 | return false; | |
278 | } | |
279 | if (ep->pid != USB_TOKEN_IN) { | |
280 | return false; | |
281 | } | |
282 | type = usb_ep_get_type(ep->dev, ep->pid, ep->nr); | |
283 | if (type != USB_ENDPOINT_XFER_BULK) { | |
284 | return false; | |
285 | } | |
286 | return true; | |
287 | } | |
288 | ||
289 | /* ------------------------------------------------------------------------ */ | |
290 | ||
291 | static USBHostRequest *usb_host_req_alloc(USBHostDevice *s, USBPacket *p, | |
292 | bool in, size_t bufsize) | |
293 | { | |
294 | USBHostRequest *r = g_new0(USBHostRequest, 1); | |
295 | ||
296 | r->host = s; | |
297 | r->p = p; | |
298 | r->in = in; | |
299 | r->xfer = libusb_alloc_transfer(0); | |
300 | if (bufsize) { | |
301 | r->buffer = g_malloc(bufsize); | |
302 | } | |
303 | QTAILQ_INSERT_TAIL(&s->requests, r, next); | |
304 | return r; | |
305 | } | |
306 | ||
307 | static void usb_host_req_free(USBHostRequest *r) | |
308 | { | |
309 | if (r->host) { | |
310 | QTAILQ_REMOVE(&r->host->requests, r, next); | |
311 | } | |
312 | libusb_free_transfer(r->xfer); | |
313 | g_free(r->buffer); | |
314 | g_free(r); | |
315 | } | |
316 | ||
317 | static USBHostRequest *usb_host_req_find(USBHostDevice *s, USBPacket *p) | |
318 | { | |
319 | USBHostRequest *r; | |
320 | ||
321 | QTAILQ_FOREACH(r, &s->requests, next) { | |
322 | if (r->p == p) { | |
323 | return r; | |
324 | } | |
325 | } | |
326 | return NULL; | |
327 | } | |
328 | ||
329 | static void usb_host_req_complete_ctrl(struct libusb_transfer *xfer) | |
330 | { | |
331 | USBHostRequest *r = xfer->user_data; | |
332 | USBHostDevice *s = r->host; | |
333 | bool disconnect = (xfer->status == LIBUSB_TRANSFER_NO_DEVICE); | |
334 | ||
335 | if (r->p == NULL) { | |
336 | goto out; /* request was canceled */ | |
337 | } | |
338 | ||
339 | r->p->status = status_map[xfer->status]; | |
340 | r->p->actual_length = xfer->actual_length; | |
341 | if (r->in && xfer->actual_length) { | |
342 | memcpy(r->cbuf, r->buffer + 8, xfer->actual_length); | |
343 | } | |
344 | trace_usb_host_req_complete(s->bus_num, s->addr, r->p, | |
345 | r->p->status, r->p->actual_length); | |
346 | usb_generic_async_ctrl_complete(USB_DEVICE(s), r->p); | |
347 | ||
348 | out: | |
349 | usb_host_req_free(r); | |
350 | if (disconnect) { | |
351 | usb_host_nodev(s); | |
352 | } | |
353 | } | |
354 | ||
355 | static void usb_host_req_complete_data(struct libusb_transfer *xfer) | |
356 | { | |
357 | USBHostRequest *r = xfer->user_data; | |
358 | USBHostDevice *s = r->host; | |
359 | bool disconnect = (xfer->status == LIBUSB_TRANSFER_NO_DEVICE); | |
360 | ||
361 | if (r->p == NULL) { | |
362 | goto out; /* request was canceled */ | |
363 | } | |
364 | ||
365 | r->p->status = status_map[xfer->status]; | |
366 | if (r->in && xfer->actual_length) { | |
367 | usb_packet_copy(r->p, r->buffer, xfer->actual_length); | |
368 | } | |
369 | trace_usb_host_req_complete(s->bus_num, s->addr, r->p, | |
370 | r->p->status, r->p->actual_length); | |
371 | if (usb_host_use_combining(r->p->ep)) { | |
372 | usb_combined_input_packet_complete(USB_DEVICE(s), r->p); | |
373 | } else { | |
374 | usb_packet_complete(USB_DEVICE(s), r->p); | |
375 | } | |
376 | ||
377 | out: | |
378 | usb_host_req_free(r); | |
379 | if (disconnect) { | |
380 | usb_host_nodev(s); | |
381 | } | |
382 | } | |
383 | ||
384 | static void usb_host_req_abort(USBHostRequest *r) | |
385 | { | |
386 | USBHostDevice *s = r->host; | |
387 | bool inflight = (r->p && r->p->state == USB_RET_ASYNC); | |
388 | ||
389 | if (inflight) { | |
390 | r->p->status = USB_RET_NODEV; | |
391 | trace_usb_host_req_complete(s->bus_num, s->addr, r->p, | |
392 | r->p->status, r->p->actual_length); | |
393 | if (r->p->ep->nr == 0) { | |
394 | usb_generic_async_ctrl_complete(USB_DEVICE(s), r->p); | |
395 | } else { | |
396 | usb_packet_complete(USB_DEVICE(s), r->p); | |
397 | } | |
398 | r->p = NULL; | |
399 | } | |
400 | ||
401 | QTAILQ_REMOVE(&r->host->requests, r, next); | |
402 | r->host = NULL; | |
403 | ||
404 | if (inflight) { | |
405 | libusb_cancel_transfer(r->xfer); | |
406 | } | |
407 | } | |
408 | ||
409 | /* ------------------------------------------------------------------------ */ | |
410 | ||
411 | static void usb_host_req_complete_iso(struct libusb_transfer *transfer) | |
412 | { | |
413 | USBHostIsoXfer *xfer = transfer->user_data; | |
414 | ||
415 | if (!xfer) { | |
416 | /* USBHostIsoXfer released while inflight */ | |
417 | g_free(transfer->buffer); | |
418 | libusb_free_transfer(transfer); | |
419 | return; | |
420 | } | |
421 | ||
422 | QTAILQ_REMOVE(&xfer->ring->inflight, xfer, next); | |
423 | if (QTAILQ_EMPTY(&xfer->ring->inflight)) { | |
424 | USBHostDevice *s = xfer->ring->host; | |
425 | trace_usb_host_iso_stop(s->bus_num, s->addr, xfer->ring->ep->nr); | |
426 | } | |
427 | if (xfer->ring->ep->pid == USB_TOKEN_IN) { | |
428 | QTAILQ_INSERT_TAIL(&xfer->ring->copy, xfer, next); | |
429 | } else { | |
430 | QTAILQ_INSERT_TAIL(&xfer->ring->unused, xfer, next); | |
431 | } | |
432 | } | |
433 | ||
434 | static USBHostIsoRing *usb_host_iso_alloc(USBHostDevice *s, USBEndpoint *ep) | |
435 | { | |
436 | USBHostIsoRing *ring = g_new0(USBHostIsoRing, 1); | |
437 | USBHostIsoXfer *xfer; | |
438 | /* FIXME: check interval (for now assume one xfer per frame) */ | |
439 | int packets = s->iso_urb_frames; | |
440 | int i; | |
441 | ||
442 | ring->host = s; | |
443 | ring->ep = ep; | |
444 | QTAILQ_INIT(&ring->unused); | |
445 | QTAILQ_INIT(&ring->inflight); | |
446 | QTAILQ_INIT(&ring->copy); | |
447 | QTAILQ_INSERT_TAIL(&s->isorings, ring, next); | |
448 | ||
449 | for (i = 0; i < s->iso_urb_count; i++) { | |
450 | xfer = g_new0(USBHostIsoXfer, 1); | |
451 | xfer->ring = ring; | |
452 | xfer->xfer = libusb_alloc_transfer(packets); | |
453 | xfer->xfer->dev_handle = s->dh; | |
454 | xfer->xfer->type = LIBUSB_TRANSFER_TYPE_ISOCHRONOUS; | |
455 | ||
456 | xfer->xfer->endpoint = ring->ep->nr; | |
457 | if (ring->ep->pid == USB_TOKEN_IN) { | |
458 | xfer->xfer->endpoint |= USB_DIR_IN; | |
459 | } | |
460 | xfer->xfer->callback = usb_host_req_complete_iso; | |
461 | xfer->xfer->user_data = xfer; | |
462 | ||
463 | xfer->xfer->num_iso_packets = packets; | |
464 | xfer->xfer->length = ring->ep->max_packet_size * packets; | |
465 | xfer->xfer->buffer = g_malloc0(xfer->xfer->length); | |
466 | ||
467 | QTAILQ_INSERT_TAIL(&ring->unused, xfer, next); | |
468 | } | |
469 | ||
470 | return ring; | |
471 | } | |
472 | ||
473 | static USBHostIsoRing *usb_host_iso_find(USBHostDevice *s, USBEndpoint *ep) | |
474 | { | |
475 | USBHostIsoRing *ring; | |
476 | ||
477 | QTAILQ_FOREACH(ring, &s->isorings, next) { | |
478 | if (ring->ep == ep) { | |
479 | return ring; | |
480 | } | |
481 | } | |
482 | return NULL; | |
483 | } | |
484 | ||
485 | static void usb_host_iso_reset_xfer(USBHostIsoXfer *xfer) | |
486 | { | |
487 | libusb_set_iso_packet_lengths(xfer->xfer, | |
488 | xfer->ring->ep->max_packet_size); | |
489 | xfer->packet = 0; | |
490 | xfer->copy_complete = false; | |
491 | } | |
492 | ||
493 | static void usb_host_iso_free_xfer(USBHostIsoXfer *xfer, bool inflight) | |
494 | { | |
495 | if (inflight) { | |
496 | xfer->xfer->user_data = NULL; | |
497 | } else { | |
498 | g_free(xfer->xfer->buffer); | |
499 | libusb_free_transfer(xfer->xfer); | |
500 | } | |
501 | g_free(xfer); | |
502 | } | |
503 | ||
504 | static void usb_host_iso_free(USBHostIsoRing *ring) | |
505 | { | |
506 | USBHostIsoXfer *xfer; | |
507 | ||
508 | while ((xfer = QTAILQ_FIRST(&ring->inflight)) != NULL) { | |
509 | QTAILQ_REMOVE(&ring->inflight, xfer, next); | |
510 | usb_host_iso_free_xfer(xfer, true); | |
511 | } | |
512 | while ((xfer = QTAILQ_FIRST(&ring->unused)) != NULL) { | |
513 | QTAILQ_REMOVE(&ring->unused, xfer, next); | |
514 | usb_host_iso_free_xfer(xfer, false); | |
515 | } | |
516 | while ((xfer = QTAILQ_FIRST(&ring->copy)) != NULL) { | |
517 | QTAILQ_REMOVE(&ring->copy, xfer, next); | |
518 | usb_host_iso_free_xfer(xfer, false); | |
519 | } | |
520 | ||
521 | QTAILQ_REMOVE(&ring->host->isorings, ring, next); | |
522 | g_free(ring); | |
523 | } | |
524 | ||
525 | static void usb_host_iso_free_all(USBHostDevice *s) | |
526 | { | |
527 | USBHostIsoRing *ring; | |
528 | ||
529 | while ((ring = QTAILQ_FIRST(&s->isorings)) != NULL) { | |
530 | usb_host_iso_free(ring); | |
531 | } | |
532 | } | |
533 | ||
534 | static bool usb_host_iso_data_copy(USBHostIsoXfer *xfer, USBPacket *p) | |
535 | { | |
536 | unsigned int psize; | |
537 | unsigned char *buf; | |
538 | ||
539 | buf = libusb_get_iso_packet_buffer_simple(xfer->xfer, xfer->packet); | |
540 | if (p->pid == USB_TOKEN_OUT) { | |
541 | psize = p->iov.size; | |
542 | if (psize > xfer->ring->ep->max_packet_size) { | |
543 | /* should not happen (guest bug) */ | |
544 | psize = xfer->ring->ep->max_packet_size; | |
545 | } | |
546 | xfer->xfer->iso_packet_desc[xfer->packet].length = psize; | |
547 | } else { | |
548 | psize = xfer->xfer->iso_packet_desc[xfer->packet].actual_length; | |
549 | if (psize > p->iov.size) { | |
550 | /* should not happen (guest bug) */ | |
551 | psize = p->iov.size; | |
552 | } | |
553 | } | |
554 | usb_packet_copy(p, buf, psize); | |
555 | xfer->packet++; | |
556 | xfer->copy_complete = (xfer->packet == xfer->xfer->num_iso_packets); | |
557 | return xfer->copy_complete; | |
558 | } | |
559 | ||
560 | static void usb_host_iso_data_in(USBHostDevice *s, USBPacket *p) | |
561 | { | |
562 | USBHostIsoRing *ring; | |
563 | USBHostIsoXfer *xfer; | |
564 | bool disconnect = false; | |
565 | int rc; | |
566 | ||
567 | ring = usb_host_iso_find(s, p->ep); | |
568 | if (ring == NULL) { | |
569 | ring = usb_host_iso_alloc(s, p->ep); | |
570 | } | |
571 | ||
572 | /* copy data to guest */ | |
573 | xfer = QTAILQ_FIRST(&ring->copy); | |
574 | if (xfer != NULL) { | |
575 | if (usb_host_iso_data_copy(xfer, p)) { | |
576 | QTAILQ_REMOVE(&ring->copy, xfer, next); | |
577 | QTAILQ_INSERT_TAIL(&ring->unused, xfer, next); | |
578 | } | |
579 | } | |
580 | ||
581 | /* submit empty bufs to host */ | |
582 | while ((xfer = QTAILQ_FIRST(&ring->unused)) != NULL) { | |
583 | QTAILQ_REMOVE(&ring->unused, xfer, next); | |
584 | usb_host_iso_reset_xfer(xfer); | |
585 | rc = libusb_submit_transfer(xfer->xfer); | |
586 | if (rc != 0) { | |
587 | usb_host_libusb_error("libusb_submit_transfer [iso]", rc); | |
588 | QTAILQ_INSERT_TAIL(&ring->unused, xfer, next); | |
589 | if (rc == LIBUSB_ERROR_NO_DEVICE) { | |
590 | disconnect = true; | |
591 | } | |
592 | break; | |
593 | } | |
594 | if (QTAILQ_EMPTY(&ring->inflight)) { | |
595 | trace_usb_host_iso_start(s->bus_num, s->addr, p->ep->nr); | |
596 | } | |
597 | QTAILQ_INSERT_TAIL(&ring->inflight, xfer, next); | |
598 | } | |
599 | ||
600 | if (disconnect) { | |
601 | usb_host_nodev(s); | |
602 | } | |
603 | } | |
604 | ||
605 | static void usb_host_iso_data_out(USBHostDevice *s, USBPacket *p) | |
606 | { | |
607 | USBHostIsoRing *ring; | |
608 | USBHostIsoXfer *xfer; | |
609 | bool disconnect = false; | |
610 | int rc, filled = 0; | |
611 | ||
612 | ring = usb_host_iso_find(s, p->ep); | |
613 | if (ring == NULL) { | |
614 | ring = usb_host_iso_alloc(s, p->ep); | |
615 | } | |
616 | ||
617 | /* copy data from guest */ | |
618 | xfer = QTAILQ_FIRST(&ring->copy); | |
619 | while (xfer != NULL && xfer->copy_complete) { | |
620 | filled++; | |
621 | xfer = QTAILQ_NEXT(xfer, next); | |
622 | } | |
623 | if (xfer == NULL) { | |
624 | xfer = QTAILQ_FIRST(&ring->unused); | |
625 | if (xfer == NULL) { | |
626 | trace_usb_host_iso_out_of_bufs(s->bus_num, s->addr, p->ep->nr); | |
627 | return; | |
628 | } | |
629 | QTAILQ_REMOVE(&ring->unused, xfer, next); | |
630 | usb_host_iso_reset_xfer(xfer); | |
631 | QTAILQ_INSERT_TAIL(&ring->copy, xfer, next); | |
632 | } | |
633 | usb_host_iso_data_copy(xfer, p); | |
634 | ||
635 | if (QTAILQ_EMPTY(&ring->inflight)) { | |
636 | /* wait until half of our buffers are filled | |
637 | before kicking the iso out stream */ | |
638 | if (filled*2 < s->iso_urb_count) { | |
639 | return; | |
640 | } | |
641 | } | |
642 | ||
643 | /* submit filled bufs to host */ | |
644 | while ((xfer = QTAILQ_FIRST(&ring->copy)) != NULL && | |
645 | xfer->copy_complete) { | |
646 | QTAILQ_REMOVE(&ring->copy, xfer, next); | |
647 | rc = libusb_submit_transfer(xfer->xfer); | |
648 | if (rc != 0) { | |
649 | usb_host_libusb_error("libusb_submit_transfer [iso]", rc); | |
650 | QTAILQ_INSERT_TAIL(&ring->unused, xfer, next); | |
651 | if (rc == LIBUSB_ERROR_NO_DEVICE) { | |
652 | disconnect = true; | |
653 | } | |
654 | break; | |
655 | } | |
656 | if (QTAILQ_EMPTY(&ring->inflight)) { | |
657 | trace_usb_host_iso_start(s->bus_num, s->addr, p->ep->nr); | |
658 | } | |
659 | QTAILQ_INSERT_TAIL(&ring->inflight, xfer, next); | |
660 | } | |
661 | ||
662 | if (disconnect) { | |
663 | usb_host_nodev(s); | |
664 | } | |
665 | } | |
666 | ||
667 | /* ------------------------------------------------------------------------ */ | |
668 | ||
669 | static void usb_host_ep_update(USBHostDevice *s) | |
670 | { | |
671 | static const char *tname[] = { | |
672 | [USB_ENDPOINT_XFER_CONTROL] = "control", | |
673 | [USB_ENDPOINT_XFER_ISOC] = "isoc", | |
674 | [USB_ENDPOINT_XFER_BULK] = "bulk", | |
675 | [USB_ENDPOINT_XFER_INT] = "int", | |
676 | }; | |
677 | USBDevice *udev = USB_DEVICE(s); | |
678 | struct libusb_config_descriptor *conf; | |
679 | const struct libusb_interface_descriptor *intf; | |
680 | const struct libusb_endpoint_descriptor *endp; | |
681 | uint8_t devep, type; | |
682 | int pid, ep; | |
683 | int rc, i, e; | |
684 | ||
685 | usb_ep_reset(udev); | |
686 | rc = libusb_get_active_config_descriptor(s->dev, &conf); | |
687 | if (rc != 0) { | |
688 | return; | |
689 | } | |
690 | trace_usb_host_parse_config(s->bus_num, s->addr, | |
691 | conf->bConfigurationValue, true); | |
692 | ||
693 | for (i = 0; i < conf->bNumInterfaces; i++) { | |
694 | assert(udev->altsetting[i] < conf->interface[i].num_altsetting); | |
695 | intf = &conf->interface[i].altsetting[udev->altsetting[i]]; | |
696 | trace_usb_host_parse_interface(s->bus_num, s->addr, | |
697 | intf->bInterfaceNumber, | |
698 | intf->bAlternateSetting, true); | |
699 | for (e = 0; e < intf->bNumEndpoints; e++) { | |
700 | endp = &intf->endpoint[e]; | |
701 | ||
702 | devep = endp->bEndpointAddress; | |
703 | pid = (devep & USB_DIR_IN) ? USB_TOKEN_IN : USB_TOKEN_OUT; | |
704 | ep = devep & 0xf; | |
705 | type = endp->bmAttributes & 0x3; | |
706 | ||
707 | if (ep == 0) { | |
708 | trace_usb_host_parse_error(s->bus_num, s->addr, | |
709 | "invalid endpoint address"); | |
710 | return; | |
711 | } | |
712 | if (usb_ep_get_type(udev, pid, ep) != USB_ENDPOINT_XFER_INVALID) { | |
713 | trace_usb_host_parse_error(s->bus_num, s->addr, | |
714 | "duplicate endpoint address"); | |
715 | return; | |
716 | } | |
717 | ||
718 | trace_usb_host_parse_endpoint(s->bus_num, s->addr, ep, | |
719 | (devep & USB_DIR_IN) ? "in" : "out", | |
720 | tname[type], true); | |
721 | usb_ep_set_max_packet_size(udev, pid, ep, | |
722 | endp->wMaxPacketSize); | |
723 | usb_ep_set_type(udev, pid, ep, type); | |
724 | usb_ep_set_ifnum(udev, pid, ep, i); | |
725 | usb_ep_set_halted(udev, pid, ep, 0); | |
726 | } | |
727 | } | |
728 | ||
729 | libusb_free_config_descriptor(conf); | |
730 | } | |
731 | ||
732 | static int usb_host_open(USBHostDevice *s, libusb_device *dev) | |
733 | { | |
734 | USBDevice *udev = USB_DEVICE(s); | |
735 | int bus_num = libusb_get_bus_number(dev); | |
736 | int addr = libusb_get_device_address(dev); | |
737 | int rc; | |
738 | ||
739 | trace_usb_host_open_started(bus_num, addr); | |
740 | ||
741 | if (s->dh != NULL) { | |
742 | goto fail; | |
743 | } | |
744 | rc = libusb_open(dev, &s->dh); | |
745 | if (rc != 0) { | |
746 | goto fail; | |
747 | } | |
748 | ||
749 | libusb_get_device_descriptor(dev, &s->ddesc); | |
750 | s->dev = dev; | |
751 | s->bus_num = bus_num; | |
752 | s->addr = addr; | |
753 | usb_host_get_port(s->dev, s->port, sizeof(s->port)); | |
754 | ||
755 | usb_ep_init(udev); | |
756 | usb_host_ep_update(s); | |
757 | ||
758 | udev->speed = speed_map[libusb_get_device_speed(dev)]; | |
759 | udev->speedmask = (1 << udev->speed); | |
760 | #if 0 | |
761 | if (udev->speed == USB_SPEED_HIGH && usb_linux_full_speed_compat(dev)) { | |
762 | udev->speedmask |= USB_SPEED_MASK_FULL; | |
763 | } | |
764 | #endif | |
765 | ||
766 | if (s->ddesc.iProduct) { | |
767 | libusb_get_string_descriptor_ascii(s->dh, s->ddesc.iProduct, | |
768 | (unsigned char *)udev->product_desc, | |
769 | sizeof(udev->product_desc)); | |
770 | } else { | |
771 | snprintf(udev->product_desc, sizeof(udev->product_desc), | |
772 | "host:%d.%d", bus_num, addr); | |
773 | } | |
774 | ||
775 | rc = usb_device_attach(udev); | |
776 | if (rc) { | |
777 | goto fail; | |
778 | } | |
779 | ||
780 | trace_usb_host_open_success(bus_num, addr); | |
781 | return 0; | |
782 | ||
783 | fail: | |
784 | trace_usb_host_open_failure(bus_num, addr); | |
785 | if (s->dh != NULL) { | |
786 | libusb_close(s->dh); | |
787 | s->dh = NULL; | |
788 | s->dev = NULL; | |
789 | } | |
790 | return -1; | |
791 | } | |
792 | ||
793 | static void usb_host_abort_xfers(USBHostDevice *s) | |
794 | { | |
795 | USBHostRequest *r, *rtmp; | |
796 | ||
797 | QTAILQ_FOREACH_SAFE(r, &s->requests, next, rtmp) { | |
798 | usb_host_req_abort(r); | |
799 | } | |
800 | } | |
801 | ||
802 | static int usb_host_close(USBHostDevice *s) | |
803 | { | |
804 | USBDevice *udev = USB_DEVICE(s); | |
805 | ||
806 | if (s->dh == NULL) { | |
807 | return -1; | |
808 | } | |
809 | ||
810 | trace_usb_host_close(s->bus_num, s->addr); | |
811 | ||
812 | usb_host_abort_xfers(s); | |
813 | usb_host_iso_free_all(s); | |
814 | ||
815 | if (udev->attached) { | |
816 | usb_device_detach(udev); | |
817 | } | |
818 | ||
819 | usb_host_release_interfaces(s); | |
820 | libusb_reset_device(s->dh); | |
821 | usb_host_attach_kernel(s); | |
822 | libusb_close(s->dh); | |
823 | s->dh = NULL; | |
824 | s->dev = NULL; | |
825 | ||
826 | usb_host_auto_check(NULL); | |
827 | return 0; | |
828 | } | |
829 | ||
830 | static void usb_host_nodev_bh(void *opaque) | |
831 | { | |
832 | USBHostDevice *s = opaque; | |
833 | usb_host_close(s); | |
834 | } | |
835 | ||
836 | static void usb_host_nodev(USBHostDevice *s) | |
837 | { | |
838 | if (!s->bh) { | |
839 | s->bh = qemu_bh_new(usb_host_nodev_bh, s); | |
840 | } | |
841 | qemu_bh_schedule(s->bh); | |
842 | } | |
843 | ||
844 | static void usb_host_exit_notifier(struct Notifier *n, void *data) | |
845 | { | |
846 | USBHostDevice *s = container_of(n, USBHostDevice, exit); | |
847 | ||
848 | if (s->dh) { | |
849 | usb_host_release_interfaces(s); | |
850 | usb_host_attach_kernel(s); | |
851 | } | |
852 | } | |
853 | ||
854 | static int usb_host_initfn(USBDevice *udev) | |
855 | { | |
856 | USBHostDevice *s = USB_HOST_DEVICE(udev); | |
857 | ||
858 | loglevel = s->loglevel; | |
859 | udev->auto_attach = 0; | |
860 | QTAILQ_INIT(&s->requests); | |
861 | QTAILQ_INIT(&s->isorings); | |
862 | ||
863 | s->exit.notify = usb_host_exit_notifier; | |
864 | qemu_add_exit_notifier(&s->exit); | |
865 | ||
866 | QTAILQ_INSERT_TAIL(&hostdevs, s, next); | |
867 | add_boot_device_path(s->bootindex, &udev->qdev, NULL); | |
868 | usb_host_auto_check(NULL); | |
869 | return 0; | |
870 | } | |
871 | ||
872 | static void usb_host_handle_destroy(USBDevice *udev) | |
873 | { | |
874 | USBHostDevice *s = USB_HOST_DEVICE(udev); | |
875 | ||
876 | qemu_remove_exit_notifier(&s->exit); | |
877 | QTAILQ_REMOVE(&hostdevs, s, next); | |
878 | usb_host_close(s); | |
879 | } | |
880 | ||
881 | static void usb_host_cancel_packet(USBDevice *udev, USBPacket *p) | |
882 | { | |
883 | USBHostDevice *s = USB_HOST_DEVICE(udev); | |
884 | USBHostRequest *r; | |
885 | ||
886 | if (p->combined) { | |
887 | usb_combined_packet_cancel(udev, p); | |
888 | return; | |
889 | } | |
890 | ||
891 | trace_usb_host_req_canceled(s->bus_num, s->addr, p); | |
892 | ||
893 | r = usb_host_req_find(s, p); | |
894 | if (r && r->p) { | |
895 | r->p = NULL; /* mark as dead */ | |
896 | libusb_cancel_transfer(r->xfer); | |
897 | } | |
898 | } | |
899 | ||
900 | static void usb_host_detach_kernel(USBHostDevice *s) | |
901 | { | |
902 | struct libusb_config_descriptor *conf; | |
903 | int rc, i; | |
904 | ||
905 | rc = libusb_get_active_config_descriptor(s->dev, &conf); | |
906 | if (rc != 0) { | |
907 | return; | |
908 | } | |
909 | for (i = 0; i < conf->bNumInterfaces; i++) { | |
910 | rc = libusb_kernel_driver_active(s->dh, i); | |
911 | usb_host_libusb_error("libusb_kernel_driver_active", rc); | |
912 | if (rc != 1) { | |
913 | continue; | |
914 | } | |
915 | trace_usb_host_detach_kernel(s->bus_num, s->addr, i); | |
916 | rc = libusb_detach_kernel_driver(s->dh, i); | |
917 | usb_host_libusb_error("libusb_detach_kernel_driver", rc); | |
918 | s->ifs[i].detached = true; | |
919 | } | |
920 | libusb_free_config_descriptor(conf); | |
921 | } | |
922 | ||
923 | static void usb_host_attach_kernel(USBHostDevice *s) | |
924 | { | |
925 | struct libusb_config_descriptor *conf; | |
926 | int rc, i; | |
927 | ||
928 | rc = libusb_get_active_config_descriptor(s->dev, &conf); | |
929 | if (rc != 0) { | |
930 | return; | |
931 | } | |
932 | for (i = 0; i < conf->bNumInterfaces; i++) { | |
933 | if (!s->ifs[i].detached) { | |
934 | continue; | |
935 | } | |
936 | trace_usb_host_attach_kernel(s->bus_num, s->addr, i); | |
937 | libusb_attach_kernel_driver(s->dh, i); | |
938 | s->ifs[i].detached = false; | |
939 | } | |
940 | libusb_free_config_descriptor(conf); | |
941 | } | |
942 | ||
943 | static int usb_host_claim_interfaces(USBHostDevice *s, int configuration) | |
944 | { | |
945 | USBDevice *udev = USB_DEVICE(s); | |
946 | struct libusb_config_descriptor *conf; | |
947 | int rc, i; | |
948 | ||
949 | for (i = 0; i < USB_MAX_INTERFACES; i++) { | |
950 | udev->altsetting[i] = 0; | |
951 | } | |
952 | udev->ninterfaces = 0; | |
953 | udev->configuration = 0; | |
954 | ||
955 | if (configuration == 0) { | |
956 | /* address state - ignore */ | |
957 | return USB_RET_SUCCESS; | |
958 | } | |
959 | ||
960 | usb_host_detach_kernel(s); | |
961 | ||
962 | rc = libusb_get_active_config_descriptor(s->dev, &conf); | |
963 | if (rc != 0) { | |
964 | return USB_RET_STALL; | |
965 | } | |
966 | ||
967 | for (i = 0; i < conf->bNumInterfaces; i++) { | |
968 | trace_usb_host_claim_interface(s->bus_num, s->addr, configuration, i); | |
969 | rc = libusb_claim_interface(s->dh, i); | |
970 | usb_host_libusb_error("libusb_claim_interface", rc); | |
971 | if (rc != 0) { | |
972 | return USB_RET_STALL; | |
973 | } | |
974 | s->ifs[i].claimed = true; | |
975 | } | |
976 | ||
977 | udev->ninterfaces = conf->bNumInterfaces; | |
978 | udev->configuration = configuration; | |
979 | ||
980 | libusb_free_config_descriptor(conf); | |
981 | return USB_RET_SUCCESS; | |
982 | } | |
983 | ||
984 | static void usb_host_release_interfaces(USBHostDevice *s) | |
985 | { | |
986 | USBDevice *udev = USB_DEVICE(s); | |
987 | int i, rc; | |
988 | ||
989 | for (i = 0; i < udev->ninterfaces; i++) { | |
990 | if (!s->ifs[i].claimed) { | |
991 | continue; | |
992 | } | |
993 | trace_usb_host_release_interface(s->bus_num, s->addr, i); | |
994 | rc = libusb_release_interface(s->dh, i); | |
995 | usb_host_libusb_error("libusb_release_interface", rc); | |
996 | s->ifs[i].claimed = false; | |
997 | } | |
998 | } | |
999 | ||
1000 | static void usb_host_set_address(USBHostDevice *s, int addr) | |
1001 | { | |
1002 | USBDevice *udev = USB_DEVICE(s); | |
1003 | ||
1004 | trace_usb_host_set_address(s->bus_num, s->addr, addr); | |
1005 | udev->addr = addr; | |
1006 | } | |
1007 | ||
1008 | static void usb_host_set_config(USBHostDevice *s, int config, USBPacket *p) | |
1009 | { | |
1010 | int rc; | |
1011 | ||
1012 | trace_usb_host_set_config(s->bus_num, s->addr, config); | |
1013 | ||
1014 | usb_host_release_interfaces(s); | |
1015 | usb_host_detach_kernel(s); | |
1016 | rc = libusb_set_configuration(s->dh, config); | |
1017 | if (rc != 0) { | |
1018 | usb_host_libusb_error("libusb_set_configuration", rc); | |
1019 | p->status = USB_RET_STALL; | |
1020 | if (rc == LIBUSB_ERROR_NO_DEVICE) { | |
1021 | usb_host_nodev(s); | |
1022 | } | |
1023 | return; | |
1024 | } | |
1025 | p->status = usb_host_claim_interfaces(s, config); | |
1026 | if (p->status != USB_RET_SUCCESS) { | |
1027 | return; | |
1028 | } | |
1029 | usb_host_ep_update(s); | |
1030 | } | |
1031 | ||
1032 | static void usb_host_set_interface(USBHostDevice *s, int iface, int alt, | |
1033 | USBPacket *p) | |
1034 | { | |
1035 | USBDevice *udev = USB_DEVICE(s); | |
1036 | int rc; | |
1037 | ||
1038 | trace_usb_host_set_interface(s->bus_num, s->addr, iface, alt); | |
1039 | ||
1040 | usb_host_iso_free_all(s); | |
1041 | ||
1042 | if (iface >= USB_MAX_INTERFACES) { | |
1043 | p->status = USB_RET_STALL; | |
1044 | return; | |
1045 | } | |
1046 | ||
1047 | rc = libusb_set_interface_alt_setting(s->dh, iface, alt); | |
1048 | if (rc != 0) { | |
1049 | usb_host_libusb_error("libusb_set_interface_alt_setting", rc); | |
1050 | p->status = USB_RET_STALL; | |
1051 | if (rc == LIBUSB_ERROR_NO_DEVICE) { | |
1052 | usb_host_nodev(s); | |
1053 | } | |
1054 | return; | |
1055 | } | |
1056 | ||
1057 | udev->altsetting[iface] = alt; | |
1058 | usb_host_ep_update(s); | |
1059 | } | |
1060 | ||
1061 | static void usb_host_handle_control(USBDevice *udev, USBPacket *p, | |
1062 | int request, int value, int index, | |
1063 | int length, uint8_t *data) | |
1064 | { | |
1065 | USBHostDevice *s = USB_HOST_DEVICE(udev); | |
1066 | USBHostRequest *r; | |
1067 | int rc; | |
1068 | ||
1069 | trace_usb_host_req_control(s->bus_num, s->addr, p, request, value, index); | |
1070 | ||
1071 | if (s->dh == NULL) { | |
1072 | p->status = USB_RET_NODEV; | |
1073 | trace_usb_host_req_emulated(s->bus_num, s->addr, p, p->status); | |
1074 | return; | |
1075 | } | |
1076 | ||
1077 | switch (request) { | |
1078 | case DeviceOutRequest | USB_REQ_SET_ADDRESS: | |
1079 | usb_host_set_address(s, value); | |
1080 | trace_usb_host_req_emulated(s->bus_num, s->addr, p, p->status); | |
1081 | return; | |
1082 | ||
1083 | case DeviceOutRequest | USB_REQ_SET_CONFIGURATION: | |
1084 | usb_host_set_config(s, value & 0xff, p); | |
1085 | trace_usb_host_req_emulated(s->bus_num, s->addr, p, p->status); | |
1086 | return; | |
1087 | ||
1088 | case InterfaceOutRequest | USB_REQ_SET_INTERFACE: | |
1089 | usb_host_set_interface(s, index, value, p); | |
1090 | trace_usb_host_req_emulated(s->bus_num, s->addr, p, p->status); | |
1091 | return; | |
1092 | ||
1093 | case EndpointOutRequest | USB_REQ_CLEAR_FEATURE: | |
1094 | if (value == 0) { /* clear halt */ | |
1095 | int pid = (index & USB_DIR_IN) ? USB_TOKEN_IN : USB_TOKEN_OUT; | |
1096 | libusb_clear_halt(s->dh, index); | |
1097 | usb_ep_set_halted(udev, pid, index & 0x0f, 0); | |
1098 | trace_usb_host_req_emulated(s->bus_num, s->addr, p, p->status); | |
1099 | return; | |
1100 | } | |
1101 | } | |
1102 | ||
1103 | r = usb_host_req_alloc(s, p, (request >> 8) & USB_DIR_IN, length + 8); | |
1104 | r->cbuf = data; | |
1105 | r->clen = length; | |
1106 | memcpy(r->buffer, udev->setup_buf, 8); | |
1107 | if (!r->in) { | |
1108 | memcpy(r->buffer + 8, r->cbuf, r->clen); | |
1109 | } | |
1110 | ||
1111 | libusb_fill_control_transfer(r->xfer, s->dh, r->buffer, | |
1112 | usb_host_req_complete_ctrl, r, | |
1113 | CONTROL_TIMEOUT); | |
1114 | rc = libusb_submit_transfer(r->xfer); | |
1115 | if (rc != 0) { | |
1116 | p->status = USB_RET_NODEV; | |
1117 | trace_usb_host_req_complete(s->bus_num, s->addr, p, | |
1118 | p->status, p->actual_length); | |
1119 | if (rc == LIBUSB_ERROR_NO_DEVICE) { | |
1120 | usb_host_nodev(s); | |
1121 | } | |
1122 | return; | |
1123 | } | |
1124 | ||
1125 | p->status = USB_RET_ASYNC; | |
1126 | } | |
1127 | ||
1128 | static void usb_host_handle_data(USBDevice *udev, USBPacket *p) | |
1129 | { | |
1130 | USBHostDevice *s = USB_HOST_DEVICE(udev); | |
1131 | USBHostRequest *r; | |
1132 | size_t size; | |
1133 | int ep, rc; | |
1134 | ||
1135 | if (usb_host_use_combining(p->ep) && p->state == USB_PACKET_SETUP) { | |
1136 | p->status = USB_RET_ADD_TO_QUEUE; | |
1137 | return; | |
1138 | } | |
1139 | ||
1140 | trace_usb_host_req_data(s->bus_num, s->addr, p, | |
1141 | p->pid == USB_TOKEN_IN, | |
1142 | p->ep->nr, p->iov.size); | |
1143 | ||
1144 | if (s->dh == NULL) { | |
1145 | p->status = USB_RET_NODEV; | |
1146 | trace_usb_host_req_emulated(s->bus_num, s->addr, p, p->status); | |
1147 | return; | |
1148 | } | |
1149 | if (p->ep->halted) { | |
1150 | p->status = USB_RET_STALL; | |
1151 | trace_usb_host_req_emulated(s->bus_num, s->addr, p, p->status); | |
1152 | return; | |
1153 | } | |
1154 | ||
1155 | switch (usb_ep_get_type(udev, p->pid, p->ep->nr)) { | |
1156 | case USB_ENDPOINT_XFER_BULK: | |
1157 | size = usb_packet_size(p); | |
1158 | r = usb_host_req_alloc(s, p, p->pid == USB_TOKEN_IN, size); | |
1159 | if (!r->in) { | |
1160 | usb_packet_copy(p, r->buffer, size); | |
1161 | } | |
1162 | ep = p->ep->nr | (r->in ? USB_DIR_IN : 0); | |
1163 | libusb_fill_bulk_transfer(r->xfer, s->dh, ep, | |
1164 | r->buffer, size, | |
1165 | usb_host_req_complete_data, r, | |
1166 | BULK_TIMEOUT); | |
1167 | break; | |
1168 | case USB_ENDPOINT_XFER_INT: | |
1169 | r = usb_host_req_alloc(s, p, p->pid == USB_TOKEN_IN, p->iov.size); | |
1170 | if (!r->in) { | |
1171 | usb_packet_copy(p, r->buffer, p->iov.size); | |
1172 | } | |
1173 | ep = p->ep->nr | (r->in ? USB_DIR_IN : 0); | |
1174 | libusb_fill_interrupt_transfer(r->xfer, s->dh, ep, | |
1175 | r->buffer, p->iov.size, | |
1176 | usb_host_req_complete_data, r, | |
1177 | INTR_TIMEOUT); | |
1178 | break; | |
1179 | case USB_ENDPOINT_XFER_ISOC: | |
1180 | if (p->pid == USB_TOKEN_IN) { | |
1181 | usb_host_iso_data_in(s, p); | |
1182 | } else { | |
1183 | usb_host_iso_data_out(s, p); | |
1184 | } | |
1185 | trace_usb_host_req_complete(s->bus_num, s->addr, p, | |
1186 | p->status, p->actual_length); | |
1187 | return; | |
1188 | default: | |
1189 | p->status = USB_RET_STALL; | |
1190 | trace_usb_host_req_complete(s->bus_num, s->addr, p, | |
1191 | p->status, p->actual_length); | |
1192 | return; | |
1193 | } | |
1194 | ||
1195 | rc = libusb_submit_transfer(r->xfer); | |
1196 | if (rc != 0) { | |
1197 | p->status = USB_RET_NODEV; | |
1198 | trace_usb_host_req_complete(s->bus_num, s->addr, p, | |
1199 | p->status, p->actual_length); | |
1200 | if (rc == LIBUSB_ERROR_NO_DEVICE) { | |
1201 | usb_host_nodev(s); | |
1202 | } | |
1203 | return; | |
1204 | } | |
1205 | ||
1206 | p->status = USB_RET_ASYNC; | |
1207 | } | |
1208 | ||
1209 | static void usb_host_flush_ep_queue(USBDevice *dev, USBEndpoint *ep) | |
1210 | { | |
1211 | if (usb_host_use_combining(ep)) { | |
1212 | usb_ep_combine_input_packets(ep); | |
1213 | } | |
1214 | } | |
1215 | ||
1216 | static void usb_host_handle_reset(USBDevice *udev) | |
1217 | { | |
1218 | USBHostDevice *s = USB_HOST_DEVICE(udev); | |
1219 | ||
1220 | trace_usb_host_reset(s->bus_num, s->addr); | |
1221 | ||
1222 | if (udev->configuration == 0) { | |
1223 | return; | |
1224 | } | |
1225 | usb_host_release_interfaces(s); | |
1226 | libusb_reset_device(s->dh); | |
1227 | usb_host_claim_interfaces(s, 0); | |
1228 | usb_host_ep_update(s); | |
1229 | } | |
1230 | ||
1231 | static const VMStateDescription vmstate_usb_host = { | |
1232 | .name = "usb-host", | |
1233 | .unmigratable = 1, | |
1234 | .fields = (VMStateField[]) { | |
1235 | VMSTATE_USB_DEVICE(parent_obj, USBHostDevice), | |
1236 | VMSTATE_END_OF_LIST() | |
1237 | } | |
1238 | }; | |
1239 | ||
1240 | static Property usb_host_dev_properties[] = { | |
1241 | DEFINE_PROP_UINT32("hostbus", USBHostDevice, match.bus_num, 0), | |
1242 | DEFINE_PROP_UINT32("hostaddr", USBHostDevice, match.addr, 0), | |
1243 | DEFINE_PROP_STRING("hostport", USBHostDevice, match.port), | |
1244 | DEFINE_PROP_HEX32("vendorid", USBHostDevice, match.vendor_id, 0), | |
1245 | DEFINE_PROP_HEX32("productid", USBHostDevice, match.product_id, 0), | |
1246 | DEFINE_PROP_UINT32("isobufs", USBHostDevice, iso_urb_count, 4), | |
1247 | DEFINE_PROP_UINT32("isobsize", USBHostDevice, iso_urb_frames, 32), | |
1248 | DEFINE_PROP_INT32("bootindex", USBHostDevice, bootindex, -1), | |
1249 | DEFINE_PROP_UINT32("loglevel", USBHostDevice, loglevel, | |
1250 | LIBUSB_LOG_LEVEL_WARNING), | |
1251 | DEFINE_PROP_BIT("pipeline", USBHostDevice, options, | |
1252 | USB_HOST_OPT_PIPELINE, true), | |
1253 | DEFINE_PROP_END_OF_LIST(), | |
1254 | }; | |
1255 | ||
1256 | static void usb_host_class_initfn(ObjectClass *klass, void *data) | |
1257 | { | |
1258 | DeviceClass *dc = DEVICE_CLASS(klass); | |
1259 | USBDeviceClass *uc = USB_DEVICE_CLASS(klass); | |
1260 | ||
1261 | uc->init = usb_host_initfn; | |
1262 | uc->product_desc = "USB Host Device"; | |
1263 | uc->cancel_packet = usb_host_cancel_packet; | |
1264 | uc->handle_data = usb_host_handle_data; | |
1265 | uc->handle_control = usb_host_handle_control; | |
1266 | uc->handle_reset = usb_host_handle_reset; | |
1267 | uc->handle_destroy = usb_host_handle_destroy; | |
1268 | uc->flush_ep_queue = usb_host_flush_ep_queue; | |
1269 | dc->vmsd = &vmstate_usb_host; | |
1270 | dc->props = usb_host_dev_properties; | |
1271 | } | |
1272 | ||
1273 | static TypeInfo usb_host_dev_info = { | |
1274 | .name = TYPE_USB_HOST_DEVICE, | |
1275 | .parent = TYPE_USB_DEVICE, | |
1276 | .instance_size = sizeof(USBHostDevice), | |
1277 | .class_init = usb_host_class_initfn, | |
1278 | }; | |
1279 | ||
1280 | static void usb_host_register_types(void) | |
1281 | { | |
1282 | type_register_static(&usb_host_dev_info); | |
1283 | } | |
1284 | ||
1285 | type_init(usb_host_register_types) | |
1286 | ||
1287 | /* ------------------------------------------------------------------------ */ | |
1288 | ||
1289 | static QEMUTimer *usb_auto_timer; | |
1290 | static VMChangeStateEntry *usb_vmstate; | |
1291 | ||
1292 | static void usb_host_vm_state(void *unused, int running, RunState state) | |
1293 | { | |
1294 | if (running) { | |
1295 | usb_host_auto_check(unused); | |
1296 | } | |
1297 | } | |
1298 | ||
1299 | static void usb_host_auto_check(void *unused) | |
1300 | { | |
1301 | struct USBHostDevice *s; | |
1302 | struct USBAutoFilter *f; | |
1303 | libusb_device **devs; | |
1304 | struct libusb_device_descriptor ddesc; | |
1305 | int unconnected = 0; | |
1306 | int i, n; | |
1307 | ||
1308 | if (usb_host_init() != 0) { | |
1309 | return; | |
1310 | } | |
1311 | ||
1312 | if (runstate_is_running()) { | |
1313 | n = libusb_get_device_list(ctx, &devs); | |
1314 | for (i = 0; i < n; i++) { | |
1315 | if (libusb_get_device_descriptor(devs[i], &ddesc) != 0) { | |
1316 | continue; | |
1317 | } | |
1318 | if (ddesc.bDeviceClass == LIBUSB_CLASS_HUB) { | |
1319 | continue; | |
1320 | } | |
1321 | QTAILQ_FOREACH(s, &hostdevs, next) { | |
1322 | f = &s->match; | |
1323 | if (f->bus_num > 0 && | |
1324 | f->bus_num != libusb_get_bus_number(devs[i])) { | |
1325 | continue; | |
1326 | } | |
1327 | if (f->addr > 0 && | |
1328 | f->addr != libusb_get_device_address(devs[i])) { | |
1329 | continue; | |
1330 | } | |
1331 | if (f->port != NULL) { | |
1332 | char port[16] = "-"; | |
1333 | usb_host_get_port(devs[i], port, sizeof(port)); | |
1334 | if (strcmp(f->port, port) != 0) { | |
1335 | continue; | |
1336 | } | |
1337 | } | |
1338 | if (f->vendor_id > 0 && | |
1339 | f->vendor_id != ddesc.idVendor) { | |
1340 | continue; | |
1341 | } | |
1342 | if (f->product_id > 0 && | |
1343 | f->product_id != ddesc.idProduct) { | |
1344 | continue; | |
1345 | } | |
1346 | ||
1347 | /* We got a match */ | |
1348 | s->seen++; | |
1349 | if (s->errcount >= 3) { | |
1350 | continue; | |
1351 | } | |
1352 | if (s->dh != NULL) { | |
1353 | continue; | |
1354 | } | |
1355 | if (usb_host_open(s, devs[i]) < 0) { | |
1356 | s->errcount++; | |
1357 | continue; | |
1358 | } | |
1359 | break; | |
1360 | } | |
1361 | } | |
1362 | libusb_free_device_list(devs, 1); | |
1363 | ||
1364 | QTAILQ_FOREACH(s, &hostdevs, next) { | |
1365 | if (s->dh == NULL) { | |
1366 | unconnected++; | |
1367 | } | |
1368 | if (s->seen == 0) { | |
1369 | if (s->dh) { | |
1370 | usb_host_close(s); | |
1371 | } | |
1372 | s->errcount = 0; | |
1373 | } | |
1374 | s->seen = 0; | |
1375 | } | |
1376 | ||
1377 | #if 0 | |
1378 | if (unconnected == 0) { | |
1379 | /* nothing to watch */ | |
1380 | if (usb_auto_timer) { | |
1381 | qemu_del_timer(usb_auto_timer); | |
1382 | trace_usb_host_auto_scan_disabled(); | |
1383 | } | |
1384 | return; | |
1385 | } | |
1386 | #endif | |
1387 | } | |
1388 | ||
1389 | if (!usb_vmstate) { | |
1390 | usb_vmstate = qemu_add_vm_change_state_handler(usb_host_vm_state, NULL); | |
1391 | } | |
1392 | if (!usb_auto_timer) { | |
1393 | usb_auto_timer = qemu_new_timer_ms(rt_clock, usb_host_auto_check, NULL); | |
1394 | if (!usb_auto_timer) { | |
1395 | return; | |
1396 | } | |
1397 | trace_usb_host_auto_scan_enabled(); | |
1398 | } | |
1399 | qemu_mod_timer(usb_auto_timer, qemu_get_clock_ms(rt_clock) + 2000); | |
1400 | } | |
1401 | ||
1402 | void usb_host_info(Monitor *mon, const QDict *qdict) | |
1403 | { | |
1404 | libusb_device **devs; | |
1405 | struct libusb_device_descriptor ddesc; | |
1406 | char port[16]; | |
1407 | int i, n; | |
1408 | ||
1409 | if (usb_host_init() != 0) { | |
1410 | return; | |
1411 | } | |
1412 | ||
1413 | n = libusb_get_device_list(ctx, &devs); | |
1414 | for (i = 0; i < n; i++) { | |
1415 | if (libusb_get_device_descriptor(devs[i], &ddesc) != 0) { | |
1416 | continue; | |
1417 | } | |
1418 | if (ddesc.bDeviceClass == LIBUSB_CLASS_HUB) { | |
1419 | continue; | |
1420 | } | |
1421 | usb_host_get_port(devs[i], port, sizeof(port)); | |
1422 | monitor_printf(mon, " Bus %d, Addr %d, Port %s, Speed %s Mb/s\n", | |
1423 | libusb_get_bus_number(devs[i]), | |
1424 | libusb_get_device_address(devs[i]), | |
1425 | port, | |
1426 | speed_name[libusb_get_device_speed(devs[i])]); | |
1427 | monitor_printf(mon, " Class %02x:", ddesc.bDeviceClass); | |
1428 | monitor_printf(mon, " USB device %04x:%04x", | |
1429 | ddesc.idVendor, ddesc.idProduct); | |
1430 | if (ddesc.iProduct) { | |
1431 | libusb_device_handle *handle; | |
1432 | if (libusb_open(devs[i], &handle) == 0) { | |
1433 | unsigned char name[64] = ""; | |
1434 | libusb_get_string_descriptor_ascii(handle, | |
1435 | ddesc.iProduct, | |
1436 | name, sizeof(name)); | |
1437 | libusb_close(handle); | |
1438 | monitor_printf(mon, ", %s", name); | |
1439 | } | |
1440 | } | |
1441 | monitor_printf(mon, "\n"); | |
1442 | } | |
1443 | libusb_free_device_list(devs, 1); | |
1444 | } |