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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 | * Permission is hereby granted, free of charge, to any person obtaining a copy | |
15 | * of this software and associated documentation files (the "Software"), to deal | |
16 | * in the Software without restriction, including without limitation the rights | |
17 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
18 | * copies of the Software, and to permit persons to whom the Software is | |
19 | * furnished to do so, subject to the following conditions: | |
20 | * | |
21 | * The above copyright notice and this permission notice shall be included in | |
22 | * all copies or substantial portions of the Software. | |
23 | * | |
24 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
25 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
26 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
27 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
28 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
29 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | |
30 | * THE SOFTWARE. | |
31 | */ | |
32 | ||
33 | #include "qemu-common.h" | |
34 | #include "qemu-timer.h" | |
35 | #include "monitor.h" | |
36 | #include "sysemu.h" | |
37 | ||
38 | #include <dirent.h> | |
39 | #include <sys/ioctl.h> | |
40 | ||
41 | #include <linux/usbdevice_fs.h> | |
42 | #include <linux/version.h> | |
43 | #include "hw/usb.h" | |
44 | ||
45 | /* We redefine it to avoid version problems */ | |
46 | struct usb_ctrltransfer { | |
47 | uint8_t bRequestType; | |
48 | uint8_t bRequest; | |
49 | uint16_t wValue; | |
50 | uint16_t wIndex; | |
51 | uint16_t wLength; | |
52 | uint32_t timeout; | |
53 | void *data; | |
54 | }; | |
55 | ||
56 | typedef int USBScanFunc(void *opaque, int bus_num, int addr, char *port, | |
57 | int class_id, int vendor_id, int product_id, | |
58 | const char *product_name, int speed); | |
59 | ||
60 | //#define DEBUG | |
61 | ||
62 | #ifdef DEBUG | |
63 | #define DPRINTF printf | |
64 | #else | |
65 | #define DPRINTF(...) | |
66 | #endif | |
67 | ||
68 | #define USBDBG_DEVOPENED "husb: opened %s/devices\n" | |
69 | ||
70 | #define USBPROCBUS_PATH "/proc/bus/usb" | |
71 | #define PRODUCT_NAME_SZ 32 | |
72 | #define MAX_ENDPOINTS 15 | |
73 | #define MAX_PORTLEN 16 | |
74 | #define USBDEVBUS_PATH "/dev/bus/usb" | |
75 | #define USBSYSBUS_PATH "/sys/bus/usb" | |
76 | ||
77 | static char *usb_host_device_path; | |
78 | ||
79 | #define USB_FS_NONE 0 | |
80 | #define USB_FS_PROC 1 | |
81 | #define USB_FS_DEV 2 | |
82 | #define USB_FS_SYS 3 | |
83 | ||
84 | static int usb_fs_type; | |
85 | ||
86 | /* endpoint association data */ | |
87 | #define ISO_FRAME_DESC_PER_URB 32 | |
88 | #define ISO_URB_COUNT 3 | |
89 | #define INVALID_EP_TYPE 255 | |
90 | ||
91 | /* devio.c limits single requests to 16k */ | |
92 | #define MAX_USBFS_BUFFER_SIZE 16384 | |
93 | ||
94 | typedef struct AsyncURB AsyncURB; | |
95 | ||
96 | struct endp_data { | |
97 | uint8_t type; | |
98 | uint8_t halted; | |
99 | uint8_t iso_started; | |
100 | AsyncURB *iso_urb; | |
101 | int iso_urb_idx; | |
102 | int iso_buffer_used; | |
103 | int max_packet_size; | |
104 | }; | |
105 | ||
106 | struct USBAutoFilter { | |
107 | uint32_t bus_num; | |
108 | uint32_t addr; | |
109 | char *port; | |
110 | uint32_t vendor_id; | |
111 | uint32_t product_id; | |
112 | }; | |
113 | ||
114 | typedef struct USBHostDevice { | |
115 | USBDevice dev; | |
116 | int fd; | |
117 | ||
118 | uint8_t descr[1024]; | |
119 | int descr_len; | |
120 | int configuration; | |
121 | int ninterfaces; | |
122 | int closing; | |
123 | Notifier exit; | |
124 | ||
125 | struct endp_data endp_table[MAX_ENDPOINTS]; | |
126 | QLIST_HEAD(, AsyncURB) aurbs; | |
127 | ||
128 | /* Host side address */ | |
129 | int bus_num; | |
130 | int addr; | |
131 | char port[MAX_PORTLEN]; | |
132 | struct USBAutoFilter match; | |
133 | ||
134 | QTAILQ_ENTRY(USBHostDevice) next; | |
135 | } USBHostDevice; | |
136 | ||
137 | static QTAILQ_HEAD(, USBHostDevice) hostdevs = QTAILQ_HEAD_INITIALIZER(hostdevs); | |
138 | ||
139 | static int usb_host_close(USBHostDevice *dev); | |
140 | static int parse_filter(const char *spec, struct USBAutoFilter *f); | |
141 | static void usb_host_auto_check(void *unused); | |
142 | static int usb_host_read_file(char *line, size_t line_size, | |
143 | const char *device_file, const char *device_name); | |
144 | ||
145 | static int is_isoc(USBHostDevice *s, int ep) | |
146 | { | |
147 | return s->endp_table[ep - 1].type == USBDEVFS_URB_TYPE_ISO; | |
148 | } | |
149 | ||
150 | static int is_valid(USBHostDevice *s, int ep) | |
151 | { | |
152 | return s->endp_table[ep - 1].type != INVALID_EP_TYPE; | |
153 | } | |
154 | ||
155 | static int is_halted(USBHostDevice *s, int ep) | |
156 | { | |
157 | return s->endp_table[ep - 1].halted; | |
158 | } | |
159 | ||
160 | static void clear_halt(USBHostDevice *s, int ep) | |
161 | { | |
162 | s->endp_table[ep - 1].halted = 0; | |
163 | } | |
164 | ||
165 | static void set_halt(USBHostDevice *s, int ep) | |
166 | { | |
167 | s->endp_table[ep - 1].halted = 1; | |
168 | } | |
169 | ||
170 | static int is_iso_started(USBHostDevice *s, int ep) | |
171 | { | |
172 | return s->endp_table[ep - 1].iso_started; | |
173 | } | |
174 | ||
175 | static void clear_iso_started(USBHostDevice *s, int ep) | |
176 | { | |
177 | s->endp_table[ep - 1].iso_started = 0; | |
178 | } | |
179 | ||
180 | static void set_iso_started(USBHostDevice *s, int ep) | |
181 | { | |
182 | s->endp_table[ep - 1].iso_started = 1; | |
183 | } | |
184 | ||
185 | static void set_iso_urb(USBHostDevice *s, int ep, AsyncURB *iso_urb) | |
186 | { | |
187 | s->endp_table[ep - 1].iso_urb = iso_urb; | |
188 | } | |
189 | ||
190 | static AsyncURB *get_iso_urb(USBHostDevice *s, int ep) | |
191 | { | |
192 | return s->endp_table[ep - 1].iso_urb; | |
193 | } | |
194 | ||
195 | static void set_iso_urb_idx(USBHostDevice *s, int ep, int i) | |
196 | { | |
197 | s->endp_table[ep - 1].iso_urb_idx = i; | |
198 | } | |
199 | ||
200 | static int get_iso_urb_idx(USBHostDevice *s, int ep) | |
201 | { | |
202 | return s->endp_table[ep - 1].iso_urb_idx; | |
203 | } | |
204 | ||
205 | static void set_iso_buffer_used(USBHostDevice *s, int ep, int i) | |
206 | { | |
207 | s->endp_table[ep - 1].iso_buffer_used = i; | |
208 | } | |
209 | ||
210 | static int get_iso_buffer_used(USBHostDevice *s, int ep) | |
211 | { | |
212 | return s->endp_table[ep - 1].iso_buffer_used; | |
213 | } | |
214 | ||
215 | static void set_max_packet_size(USBHostDevice *s, int ep, uint8_t *descriptor) | |
216 | { | |
217 | int raw = descriptor[4] + (descriptor[5] << 8); | |
218 | int size, microframes; | |
219 | ||
220 | size = raw & 0x7ff; | |
221 | switch ((raw >> 11) & 3) { | |
222 | case 1: microframes = 2; break; | |
223 | case 2: microframes = 3; break; | |
224 | default: microframes = 1; break; | |
225 | } | |
226 | DPRINTF("husb: max packet size: 0x%x -> %d x %d\n", | |
227 | raw, microframes, size); | |
228 | s->endp_table[ep - 1].max_packet_size = size * microframes; | |
229 | } | |
230 | ||
231 | static int get_max_packet_size(USBHostDevice *s, int ep) | |
232 | { | |
233 | return s->endp_table[ep - 1].max_packet_size; | |
234 | } | |
235 | ||
236 | /* | |
237 | * Async URB state. | |
238 | * We always allocate iso packet descriptors even for bulk transfers | |
239 | * to simplify allocation and casts. | |
240 | */ | |
241 | struct AsyncURB | |
242 | { | |
243 | struct usbdevfs_urb urb; | |
244 | struct usbdevfs_iso_packet_desc isocpd[ISO_FRAME_DESC_PER_URB]; | |
245 | USBHostDevice *hdev; | |
246 | QLIST_ENTRY(AsyncURB) next; | |
247 | ||
248 | /* For regular async urbs */ | |
249 | USBPacket *packet; | |
250 | int more; /* large transfer, more urbs follow */ | |
251 | ||
252 | /* For buffered iso handling */ | |
253 | int iso_frame_idx; /* -1 means in flight */ | |
254 | }; | |
255 | ||
256 | static AsyncURB *async_alloc(USBHostDevice *s) | |
257 | { | |
258 | AsyncURB *aurb = qemu_mallocz(sizeof(AsyncURB)); | |
259 | aurb->hdev = s; | |
260 | QLIST_INSERT_HEAD(&s->aurbs, aurb, next); | |
261 | return aurb; | |
262 | } | |
263 | ||
264 | static void async_free(AsyncURB *aurb) | |
265 | { | |
266 | QLIST_REMOVE(aurb, next); | |
267 | qemu_free(aurb); | |
268 | } | |
269 | ||
270 | static void async_complete(void *opaque) | |
271 | { | |
272 | USBHostDevice *s = opaque; | |
273 | AsyncURB *aurb; | |
274 | ||
275 | while (1) { | |
276 | USBPacket *p; | |
277 | ||
278 | int r = ioctl(s->fd, USBDEVFS_REAPURBNDELAY, &aurb); | |
279 | if (r < 0) { | |
280 | if (errno == EAGAIN) { | |
281 | return; | |
282 | } | |
283 | if (errno == ENODEV && !s->closing) { | |
284 | printf("husb: device %d.%d disconnected\n", | |
285 | s->bus_num, s->addr); | |
286 | usb_host_close(s); | |
287 | usb_host_auto_check(NULL); | |
288 | return; | |
289 | } | |
290 | ||
291 | DPRINTF("husb: async. reap urb failed errno %d\n", errno); | |
292 | return; | |
293 | } | |
294 | ||
295 | DPRINTF("husb: async completed. aurb %p status %d alen %d\n", | |
296 | aurb, aurb->urb.status, aurb->urb.actual_length); | |
297 | ||
298 | /* If this is a buffered iso urb mark it as complete and don't do | |
299 | anything else (it is handled further in usb_host_handle_iso_data) */ | |
300 | if (aurb->iso_frame_idx == -1) { | |
301 | if (aurb->urb.status == -EPIPE) { | |
302 | set_halt(s, aurb->urb.endpoint & 0xf); | |
303 | } | |
304 | aurb->iso_frame_idx = 0; | |
305 | continue; | |
306 | } | |
307 | ||
308 | p = aurb->packet; | |
309 | ||
310 | if (p) { | |
311 | switch (aurb->urb.status) { | |
312 | case 0: | |
313 | p->len += aurb->urb.actual_length; | |
314 | break; | |
315 | ||
316 | case -EPIPE: | |
317 | set_halt(s, p->devep); | |
318 | p->len = USB_RET_STALL; | |
319 | break; | |
320 | ||
321 | default: | |
322 | p->len = USB_RET_NAK; | |
323 | break; | |
324 | } | |
325 | ||
326 | if (aurb->urb.type == USBDEVFS_URB_TYPE_CONTROL) { | |
327 | usb_generic_async_ctrl_complete(&s->dev, p); | |
328 | } else if (!aurb->more) { | |
329 | usb_packet_complete(&s->dev, p); | |
330 | } | |
331 | } | |
332 | ||
333 | async_free(aurb); | |
334 | } | |
335 | } | |
336 | ||
337 | static void usb_host_async_cancel(USBDevice *dev, USBPacket *p) | |
338 | { | |
339 | USBHostDevice *s = DO_UPCAST(USBHostDevice, dev, dev); | |
340 | AsyncURB *aurb; | |
341 | ||
342 | QLIST_FOREACH(aurb, &s->aurbs, next) { | |
343 | if (p != aurb->packet) { | |
344 | continue; | |
345 | } | |
346 | ||
347 | DPRINTF("husb: async cancel: packet %p, aurb %p\n", p, aurb); | |
348 | ||
349 | /* Mark it as dead (see async_complete above) */ | |
350 | aurb->packet = NULL; | |
351 | ||
352 | int r = ioctl(s->fd, USBDEVFS_DISCARDURB, aurb); | |
353 | if (r < 0) { | |
354 | DPRINTF("husb: async. discard urb failed errno %d\n", errno); | |
355 | } | |
356 | } | |
357 | } | |
358 | ||
359 | static int usb_host_claim_interfaces(USBHostDevice *dev, int configuration) | |
360 | { | |
361 | int dev_descr_len, config_descr_len; | |
362 | int interface, nb_interfaces; | |
363 | int ret, i; | |
364 | ||
365 | if (configuration == 0) /* address state - ignore */ | |
366 | return 1; | |
367 | ||
368 | DPRINTF("husb: claiming interfaces. config %d\n", configuration); | |
369 | ||
370 | i = 0; | |
371 | dev_descr_len = dev->descr[0]; | |
372 | if (dev_descr_len > dev->descr_len) { | |
373 | goto fail; | |
374 | } | |
375 | ||
376 | i += dev_descr_len; | |
377 | while (i < dev->descr_len) { | |
378 | DPRINTF("husb: i is %d, descr_len is %d, dl %d, dt %d\n", | |
379 | i, dev->descr_len, | |
380 | dev->descr[i], dev->descr[i+1]); | |
381 | ||
382 | if (dev->descr[i+1] != USB_DT_CONFIG) { | |
383 | i += dev->descr[i]; | |
384 | continue; | |
385 | } | |
386 | config_descr_len = dev->descr[i]; | |
387 | ||
388 | printf("husb: config #%d need %d\n", dev->descr[i + 5], configuration); | |
389 | ||
390 | if (configuration < 0 || configuration == dev->descr[i + 5]) { | |
391 | configuration = dev->descr[i + 5]; | |
392 | break; | |
393 | } | |
394 | ||
395 | i += config_descr_len; | |
396 | } | |
397 | ||
398 | if (i >= dev->descr_len) { | |
399 | fprintf(stderr, | |
400 | "husb: update iface failed. no matching configuration\n"); | |
401 | goto fail; | |
402 | } | |
403 | nb_interfaces = dev->descr[i + 4]; | |
404 | ||
405 | #ifdef USBDEVFS_DISCONNECT | |
406 | /* earlier Linux 2.4 do not support that */ | |
407 | { | |
408 | struct usbdevfs_ioctl ctrl; | |
409 | for (interface = 0; interface < nb_interfaces; interface++) { | |
410 | ctrl.ioctl_code = USBDEVFS_DISCONNECT; | |
411 | ctrl.ifno = interface; | |
412 | ctrl.data = 0; | |
413 | ret = ioctl(dev->fd, USBDEVFS_IOCTL, &ctrl); | |
414 | if (ret < 0 && errno != ENODATA) { | |
415 | perror("USBDEVFS_DISCONNECT"); | |
416 | goto fail; | |
417 | } | |
418 | } | |
419 | } | |
420 | #endif | |
421 | ||
422 | /* XXX: only grab if all interfaces are free */ | |
423 | for (interface = 0; interface < nb_interfaces; interface++) { | |
424 | ret = ioctl(dev->fd, USBDEVFS_CLAIMINTERFACE, &interface); | |
425 | if (ret < 0) { | |
426 | if (errno == EBUSY) { | |
427 | printf("husb: update iface. device already grabbed\n"); | |
428 | } else { | |
429 | perror("husb: failed to claim interface"); | |
430 | } | |
431 | fail: | |
432 | return 0; | |
433 | } | |
434 | } | |
435 | ||
436 | printf("husb: %d interfaces claimed for configuration %d\n", | |
437 | nb_interfaces, configuration); | |
438 | ||
439 | dev->ninterfaces = nb_interfaces; | |
440 | dev->configuration = configuration; | |
441 | return 1; | |
442 | } | |
443 | ||
444 | static int usb_host_release_interfaces(USBHostDevice *s) | |
445 | { | |
446 | int ret, i; | |
447 | ||
448 | DPRINTF("husb: releasing interfaces\n"); | |
449 | ||
450 | for (i = 0; i < s->ninterfaces; i++) { | |
451 | ret = ioctl(s->fd, USBDEVFS_RELEASEINTERFACE, &i); | |
452 | if (ret < 0) { | |
453 | perror("husb: failed to release interface"); | |
454 | return 0; | |
455 | } | |
456 | } | |
457 | ||
458 | return 1; | |
459 | } | |
460 | ||
461 | static void usb_host_handle_reset(USBDevice *dev) | |
462 | { | |
463 | USBHostDevice *s = DO_UPCAST(USBHostDevice, dev, dev); | |
464 | ||
465 | DPRINTF("husb: reset device %u.%u\n", s->bus_num, s->addr); | |
466 | ||
467 | ioctl(s->fd, USBDEVFS_RESET); | |
468 | ||
469 | usb_host_claim_interfaces(s, s->configuration); | |
470 | } | |
471 | ||
472 | static void usb_host_handle_destroy(USBDevice *dev) | |
473 | { | |
474 | USBHostDevice *s = (USBHostDevice *)dev; | |
475 | ||
476 | usb_host_close(s); | |
477 | QTAILQ_REMOVE(&hostdevs, s, next); | |
478 | qemu_remove_exit_notifier(&s->exit); | |
479 | } | |
480 | ||
481 | static int usb_linux_update_endp_table(USBHostDevice *s); | |
482 | ||
483 | /* iso data is special, we need to keep enough urbs in flight to make sure | |
484 | that the controller never runs out of them, otherwise the device will | |
485 | likely suffer a buffer underrun / overrun. */ | |
486 | static AsyncURB *usb_host_alloc_iso(USBHostDevice *s, uint8_t ep, int in) | |
487 | { | |
488 | AsyncURB *aurb; | |
489 | int i, j, len = get_max_packet_size(s, ep); | |
490 | ||
491 | aurb = qemu_mallocz(ISO_URB_COUNT * sizeof(*aurb)); | |
492 | for (i = 0; i < ISO_URB_COUNT; i++) { | |
493 | aurb[i].urb.endpoint = ep; | |
494 | aurb[i].urb.buffer_length = ISO_FRAME_DESC_PER_URB * len; | |
495 | aurb[i].urb.buffer = qemu_malloc(aurb[i].urb.buffer_length); | |
496 | aurb[i].urb.type = USBDEVFS_URB_TYPE_ISO; | |
497 | aurb[i].urb.flags = USBDEVFS_URB_ISO_ASAP; | |
498 | aurb[i].urb.number_of_packets = ISO_FRAME_DESC_PER_URB; | |
499 | for (j = 0 ; j < ISO_FRAME_DESC_PER_URB; j++) | |
500 | aurb[i].urb.iso_frame_desc[j].length = len; | |
501 | if (in) { | |
502 | aurb[i].urb.endpoint |= 0x80; | |
503 | /* Mark as fully consumed (idle) */ | |
504 | aurb[i].iso_frame_idx = ISO_FRAME_DESC_PER_URB; | |
505 | } | |
506 | } | |
507 | set_iso_urb(s, ep, aurb); | |
508 | ||
509 | return aurb; | |
510 | } | |
511 | ||
512 | static void usb_host_stop_n_free_iso(USBHostDevice *s, uint8_t ep) | |
513 | { | |
514 | AsyncURB *aurb; | |
515 | int i, ret, killed = 0, free = 1; | |
516 | ||
517 | aurb = get_iso_urb(s, ep); | |
518 | if (!aurb) { | |
519 | return; | |
520 | } | |
521 | ||
522 | for (i = 0; i < ISO_URB_COUNT; i++) { | |
523 | /* in flight? */ | |
524 | if (aurb[i].iso_frame_idx == -1) { | |
525 | ret = ioctl(s->fd, USBDEVFS_DISCARDURB, &aurb[i]); | |
526 | if (ret < 0) { | |
527 | printf("husb: discard isoc in urb failed errno %d\n", errno); | |
528 | free = 0; | |
529 | continue; | |
530 | } | |
531 | killed++; | |
532 | } | |
533 | } | |
534 | ||
535 | /* Make sure any urbs we've killed are reaped before we free them */ | |
536 | if (killed) { | |
537 | async_complete(s); | |
538 | } | |
539 | ||
540 | for (i = 0; i < ISO_URB_COUNT; i++) { | |
541 | qemu_free(aurb[i].urb.buffer); | |
542 | } | |
543 | ||
544 | if (free) | |
545 | qemu_free(aurb); | |
546 | else | |
547 | printf("husb: leaking iso urbs because of discard failure\n"); | |
548 | set_iso_urb(s, ep, NULL); | |
549 | set_iso_urb_idx(s, ep, 0); | |
550 | clear_iso_started(s, ep); | |
551 | } | |
552 | ||
553 | static int urb_status_to_usb_ret(int status) | |
554 | { | |
555 | switch (status) { | |
556 | case -EPIPE: | |
557 | return USB_RET_STALL; | |
558 | default: | |
559 | return USB_RET_NAK; | |
560 | } | |
561 | } | |
562 | ||
563 | static int usb_host_handle_iso_data(USBHostDevice *s, USBPacket *p, int in) | |
564 | { | |
565 | AsyncURB *aurb; | |
566 | int i, j, ret, max_packet_size, offset, len = 0; | |
567 | ||
568 | max_packet_size = get_max_packet_size(s, p->devep); | |
569 | if (max_packet_size == 0) | |
570 | return USB_RET_NAK; | |
571 | ||
572 | aurb = get_iso_urb(s, p->devep); | |
573 | if (!aurb) { | |
574 | aurb = usb_host_alloc_iso(s, p->devep, in); | |
575 | } | |
576 | ||
577 | i = get_iso_urb_idx(s, p->devep); | |
578 | j = aurb[i].iso_frame_idx; | |
579 | if (j >= 0 && j < ISO_FRAME_DESC_PER_URB) { | |
580 | if (in) { | |
581 | /* Check urb status */ | |
582 | if (aurb[i].urb.status) { | |
583 | len = urb_status_to_usb_ret(aurb[i].urb.status); | |
584 | /* Move to the next urb */ | |
585 | aurb[i].iso_frame_idx = ISO_FRAME_DESC_PER_URB - 1; | |
586 | /* Check frame status */ | |
587 | } else if (aurb[i].urb.iso_frame_desc[j].status) { | |
588 | len = urb_status_to_usb_ret( | |
589 | aurb[i].urb.iso_frame_desc[j].status); | |
590 | /* Check the frame fits */ | |
591 | } else if (aurb[i].urb.iso_frame_desc[j].actual_length > p->len) { | |
592 | printf("husb: received iso data is larger then packet\n"); | |
593 | len = USB_RET_NAK; | |
594 | /* All good copy data over */ | |
595 | } else { | |
596 | len = aurb[i].urb.iso_frame_desc[j].actual_length; | |
597 | memcpy(p->data, | |
598 | aurb[i].urb.buffer + | |
599 | j * aurb[i].urb.iso_frame_desc[0].length, | |
600 | len); | |
601 | } | |
602 | } else { | |
603 | len = p->len; | |
604 | offset = (j == 0) ? 0 : get_iso_buffer_used(s, p->devep); | |
605 | ||
606 | /* Check the frame fits */ | |
607 | if (len > max_packet_size) { | |
608 | printf("husb: send iso data is larger then max packet size\n"); | |
609 | return USB_RET_NAK; | |
610 | } | |
611 | ||
612 | /* All good copy data over */ | |
613 | memcpy(aurb[i].urb.buffer + offset, p->data, len); | |
614 | aurb[i].urb.iso_frame_desc[j].length = len; | |
615 | offset += len; | |
616 | set_iso_buffer_used(s, p->devep, offset); | |
617 | ||
618 | /* Start the stream once we have buffered enough data */ | |
619 | if (!is_iso_started(s, p->devep) && i == 1 && j == 8) { | |
620 | set_iso_started(s, p->devep); | |
621 | } | |
622 | } | |
623 | aurb[i].iso_frame_idx++; | |
624 | if (aurb[i].iso_frame_idx == ISO_FRAME_DESC_PER_URB) { | |
625 | i = (i + 1) % ISO_URB_COUNT; | |
626 | set_iso_urb_idx(s, p->devep, i); | |
627 | } | |
628 | } else { | |
629 | if (in) { | |
630 | set_iso_started(s, p->devep); | |
631 | } else { | |
632 | DPRINTF("hubs: iso out error no free buffer, dropping packet\n"); | |
633 | } | |
634 | } | |
635 | ||
636 | if (is_iso_started(s, p->devep)) { | |
637 | /* (Re)-submit all fully consumed / filled urbs */ | |
638 | for (i = 0; i < ISO_URB_COUNT; i++) { | |
639 | if (aurb[i].iso_frame_idx == ISO_FRAME_DESC_PER_URB) { | |
640 | ret = ioctl(s->fd, USBDEVFS_SUBMITURB, &aurb[i]); | |
641 | if (ret < 0) { | |
642 | printf("husb error submitting iso urb %d: %d\n", i, errno); | |
643 | if (!in || len == 0) { | |
644 | switch(errno) { | |
645 | case ETIMEDOUT: | |
646 | len = USB_RET_NAK; | |
647 | break; | |
648 | case EPIPE: | |
649 | default: | |
650 | len = USB_RET_STALL; | |
651 | } | |
652 | } | |
653 | break; | |
654 | } | |
655 | aurb[i].iso_frame_idx = -1; | |
656 | } | |
657 | } | |
658 | } | |
659 | ||
660 | return len; | |
661 | } | |
662 | ||
663 | static int usb_host_handle_data(USBDevice *dev, USBPacket *p) | |
664 | { | |
665 | USBHostDevice *s = DO_UPCAST(USBHostDevice, dev, dev); | |
666 | struct usbdevfs_urb *urb; | |
667 | AsyncURB *aurb; | |
668 | int ret, rem; | |
669 | uint8_t *pbuf; | |
670 | uint8_t ep; | |
671 | ||
672 | if (!is_valid(s, p->devep)) { | |
673 | return USB_RET_NAK; | |
674 | } | |
675 | ||
676 | if (p->pid == USB_TOKEN_IN) { | |
677 | ep = p->devep | 0x80; | |
678 | } else { | |
679 | ep = p->devep; | |
680 | } | |
681 | ||
682 | if (is_halted(s, p->devep)) { | |
683 | ret = ioctl(s->fd, USBDEVFS_CLEAR_HALT, &ep); | |
684 | if (ret < 0) { | |
685 | DPRINTF("husb: failed to clear halt. ep 0x%x errno %d\n", | |
686 | ep, errno); | |
687 | return USB_RET_NAK; | |
688 | } | |
689 | clear_halt(s, p->devep); | |
690 | } | |
691 | ||
692 | if (is_isoc(s, p->devep)) { | |
693 | return usb_host_handle_iso_data(s, p, p->pid == USB_TOKEN_IN); | |
694 | } | |
695 | ||
696 | rem = p->len; | |
697 | pbuf = p->data; | |
698 | p->len = 0; | |
699 | while (rem) { | |
700 | aurb = async_alloc(s); | |
701 | aurb->packet = p; | |
702 | ||
703 | urb = &aurb->urb; | |
704 | urb->endpoint = ep; | |
705 | urb->type = USBDEVFS_URB_TYPE_BULK; | |
706 | urb->usercontext = s; | |
707 | urb->buffer = pbuf; | |
708 | ||
709 | if (rem > MAX_USBFS_BUFFER_SIZE) { | |
710 | urb->buffer_length = MAX_USBFS_BUFFER_SIZE; | |
711 | aurb->more = 1; | |
712 | } else { | |
713 | urb->buffer_length = rem; | |
714 | aurb->more = 0; | |
715 | } | |
716 | pbuf += urb->buffer_length; | |
717 | rem -= urb->buffer_length; | |
718 | ||
719 | ret = ioctl(s->fd, USBDEVFS_SUBMITURB, urb); | |
720 | ||
721 | DPRINTF("husb: data submit: ep 0x%x, len %u, more %d, packet %p, aurb %p\n", | |
722 | urb->endpoint, urb->buffer_length, aurb->more, p, aurb); | |
723 | ||
724 | if (ret < 0) { | |
725 | DPRINTF("husb: submit failed. errno %d\n", errno); | |
726 | async_free(aurb); | |
727 | ||
728 | switch(errno) { | |
729 | case ETIMEDOUT: | |
730 | return USB_RET_NAK; | |
731 | case EPIPE: | |
732 | default: | |
733 | return USB_RET_STALL; | |
734 | } | |
735 | } | |
736 | } | |
737 | ||
738 | return USB_RET_ASYNC; | |
739 | } | |
740 | ||
741 | static int ctrl_error(void) | |
742 | { | |
743 | if (errno == ETIMEDOUT) { | |
744 | return USB_RET_NAK; | |
745 | } else { | |
746 | return USB_RET_STALL; | |
747 | } | |
748 | } | |
749 | ||
750 | static int usb_host_set_address(USBHostDevice *s, int addr) | |
751 | { | |
752 | DPRINTF("husb: ctrl set addr %u\n", addr); | |
753 | s->dev.addr = addr; | |
754 | return 0; | |
755 | } | |
756 | ||
757 | static int usb_host_set_config(USBHostDevice *s, int config) | |
758 | { | |
759 | usb_host_release_interfaces(s); | |
760 | ||
761 | int ret = ioctl(s->fd, USBDEVFS_SETCONFIGURATION, &config); | |
762 | ||
763 | DPRINTF("husb: ctrl set config %d ret %d errno %d\n", config, ret, errno); | |
764 | ||
765 | if (ret < 0) { | |
766 | return ctrl_error(); | |
767 | } | |
768 | usb_host_claim_interfaces(s, config); | |
769 | return 0; | |
770 | } | |
771 | ||
772 | static int usb_host_set_interface(USBHostDevice *s, int iface, int alt) | |
773 | { | |
774 | struct usbdevfs_setinterface si; | |
775 | int i, ret; | |
776 | ||
777 | for (i = 1; i <= MAX_ENDPOINTS; i++) { | |
778 | if (is_isoc(s, i)) { | |
779 | usb_host_stop_n_free_iso(s, i); | |
780 | } | |
781 | } | |
782 | ||
783 | si.interface = iface; | |
784 | si.altsetting = alt; | |
785 | ret = ioctl(s->fd, USBDEVFS_SETINTERFACE, &si); | |
786 | ||
787 | DPRINTF("husb: ctrl set iface %d altset %d ret %d errno %d\n", | |
788 | iface, alt, ret, errno); | |
789 | ||
790 | if (ret < 0) { | |
791 | return ctrl_error(); | |
792 | } | |
793 | usb_linux_update_endp_table(s); | |
794 | return 0; | |
795 | } | |
796 | ||
797 | static int usb_host_handle_control(USBDevice *dev, USBPacket *p, | |
798 | int request, int value, int index, int length, uint8_t *data) | |
799 | { | |
800 | USBHostDevice *s = DO_UPCAST(USBHostDevice, dev, dev); | |
801 | struct usbdevfs_urb *urb; | |
802 | AsyncURB *aurb; | |
803 | int ret; | |
804 | ||
805 | /* | |
806 | * Process certain standard device requests. | |
807 | * These are infrequent and are processed synchronously. | |
808 | */ | |
809 | ||
810 | /* Note request is (bRequestType << 8) | bRequest */ | |
811 | DPRINTF("husb: ctrl type 0x%x req 0x%x val 0x%x index %u len %u\n", | |
812 | request >> 8, request & 0xff, value, index, length); | |
813 | ||
814 | switch (request) { | |
815 | case DeviceOutRequest | USB_REQ_SET_ADDRESS: | |
816 | return usb_host_set_address(s, value); | |
817 | ||
818 | case DeviceOutRequest | USB_REQ_SET_CONFIGURATION: | |
819 | return usb_host_set_config(s, value & 0xff); | |
820 | ||
821 | case InterfaceOutRequest | USB_REQ_SET_INTERFACE: | |
822 | return usb_host_set_interface(s, index, value); | |
823 | } | |
824 | ||
825 | /* The rest are asynchronous */ | |
826 | ||
827 | if (length > sizeof(dev->data_buf)) { | |
828 | fprintf(stderr, "husb: ctrl buffer too small (%d > %zu)\n", | |
829 | length, sizeof(dev->data_buf)); | |
830 | return USB_RET_STALL; | |
831 | } | |
832 | ||
833 | aurb = async_alloc(s); | |
834 | aurb->packet = p; | |
835 | ||
836 | /* | |
837 | * Setup ctrl transfer. | |
838 | * | |
839 | * s->ctrl is laid out such that data buffer immediately follows | |
840 | * 'req' struct which is exactly what usbdevfs expects. | |
841 | */ | |
842 | urb = &aurb->urb; | |
843 | ||
844 | urb->type = USBDEVFS_URB_TYPE_CONTROL; | |
845 | urb->endpoint = p->devep; | |
846 | ||
847 | urb->buffer = &dev->setup_buf; | |
848 | urb->buffer_length = length + 8; | |
849 | ||
850 | urb->usercontext = s; | |
851 | ||
852 | ret = ioctl(s->fd, USBDEVFS_SUBMITURB, urb); | |
853 | ||
854 | DPRINTF("husb: submit ctrl. len %u aurb %p\n", urb->buffer_length, aurb); | |
855 | ||
856 | if (ret < 0) { | |
857 | DPRINTF("husb: submit failed. errno %d\n", errno); | |
858 | async_free(aurb); | |
859 | ||
860 | switch(errno) { | |
861 | case ETIMEDOUT: | |
862 | return USB_RET_NAK; | |
863 | case EPIPE: | |
864 | default: | |
865 | return USB_RET_STALL; | |
866 | } | |
867 | } | |
868 | ||
869 | return USB_RET_ASYNC; | |
870 | } | |
871 | ||
872 | static int usb_linux_get_configuration(USBHostDevice *s) | |
873 | { | |
874 | uint8_t configuration; | |
875 | struct usb_ctrltransfer ct; | |
876 | int ret; | |
877 | ||
878 | if (usb_fs_type == USB_FS_SYS) { | |
879 | char device_name[32], line[1024]; | |
880 | int configuration; | |
881 | ||
882 | sprintf(device_name, "%d-%s", s->bus_num, s->port); | |
883 | ||
884 | if (!usb_host_read_file(line, sizeof(line), "bConfigurationValue", | |
885 | device_name)) { | |
886 | goto usbdevfs; | |
887 | } | |
888 | if (sscanf(line, "%d", &configuration) != 1) { | |
889 | goto usbdevfs; | |
890 | } | |
891 | return configuration; | |
892 | } | |
893 | ||
894 | usbdevfs: | |
895 | ct.bRequestType = USB_DIR_IN; | |
896 | ct.bRequest = USB_REQ_GET_CONFIGURATION; | |
897 | ct.wValue = 0; | |
898 | ct.wIndex = 0; | |
899 | ct.wLength = 1; | |
900 | ct.data = &configuration; | |
901 | ct.timeout = 50; | |
902 | ||
903 | ret = ioctl(s->fd, USBDEVFS_CONTROL, &ct); | |
904 | if (ret < 0) { | |
905 | perror("usb_linux_get_configuration"); | |
906 | return -1; | |
907 | } | |
908 | ||
909 | /* in address state */ | |
910 | if (configuration == 0) { | |
911 | return -1; | |
912 | } | |
913 | ||
914 | return configuration; | |
915 | } | |
916 | ||
917 | static uint8_t usb_linux_get_alt_setting(USBHostDevice *s, | |
918 | uint8_t configuration, uint8_t interface) | |
919 | { | |
920 | uint8_t alt_setting; | |
921 | struct usb_ctrltransfer ct; | |
922 | int ret; | |
923 | ||
924 | if (usb_fs_type == USB_FS_SYS) { | |
925 | char device_name[64], line[1024]; | |
926 | int alt_setting; | |
927 | ||
928 | sprintf(device_name, "%d-%s:%d.%d", s->bus_num, s->port, | |
929 | (int)configuration, (int)interface); | |
930 | ||
931 | if (!usb_host_read_file(line, sizeof(line), "bAlternateSetting", | |
932 | device_name)) { | |
933 | goto usbdevfs; | |
934 | } | |
935 | if (sscanf(line, "%d", &alt_setting) != 1) { | |
936 | goto usbdevfs; | |
937 | } | |
938 | return alt_setting; | |
939 | } | |
940 | ||
941 | usbdevfs: | |
942 | ct.bRequestType = USB_DIR_IN | USB_RECIP_INTERFACE; | |
943 | ct.bRequest = USB_REQ_GET_INTERFACE; | |
944 | ct.wValue = 0; | |
945 | ct.wIndex = interface; | |
946 | ct.wLength = 1; | |
947 | ct.data = &alt_setting; | |
948 | ct.timeout = 50; | |
949 | ret = ioctl(s->fd, USBDEVFS_CONTROL, &ct); | |
950 | if (ret < 0) { | |
951 | /* Assume alt 0 on error */ | |
952 | return 0; | |
953 | } | |
954 | ||
955 | return alt_setting; | |
956 | } | |
957 | ||
958 | /* returns 1 on problem encountered or 0 for success */ | |
959 | static int usb_linux_update_endp_table(USBHostDevice *s) | |
960 | { | |
961 | uint8_t *descriptors; | |
962 | uint8_t devep, type, configuration, alt_interface; | |
963 | int interface, length, i; | |
964 | ||
965 | for (i = 0; i < MAX_ENDPOINTS; i++) | |
966 | s->endp_table[i].type = INVALID_EP_TYPE; | |
967 | ||
968 | i = usb_linux_get_configuration(s); | |
969 | if (i < 0) | |
970 | return 1; | |
971 | configuration = i; | |
972 | ||
973 | /* get the desired configuration, interface, and endpoint descriptors | |
974 | * from device description */ | |
975 | descriptors = &s->descr[18]; | |
976 | length = s->descr_len - 18; | |
977 | i = 0; | |
978 | ||
979 | if (descriptors[i + 1] != USB_DT_CONFIG || | |
980 | descriptors[i + 5] != configuration) { | |
981 | DPRINTF("invalid descriptor data - configuration\n"); | |
982 | return 1; | |
983 | } | |
984 | i += descriptors[i]; | |
985 | ||
986 | while (i < length) { | |
987 | if (descriptors[i + 1] != USB_DT_INTERFACE || | |
988 | (descriptors[i + 1] == USB_DT_INTERFACE && | |
989 | descriptors[i + 4] == 0)) { | |
990 | i += descriptors[i]; | |
991 | continue; | |
992 | } | |
993 | ||
994 | interface = descriptors[i + 2]; | |
995 | alt_interface = usb_linux_get_alt_setting(s, configuration, interface); | |
996 | ||
997 | /* the current interface descriptor is the active interface | |
998 | * and has endpoints */ | |
999 | if (descriptors[i + 3] != alt_interface) { | |
1000 | i += descriptors[i]; | |
1001 | continue; | |
1002 | } | |
1003 | ||
1004 | /* advance to the endpoints */ | |
1005 | while (i < length && descriptors[i +1] != USB_DT_ENDPOINT) { | |
1006 | i += descriptors[i]; | |
1007 | } | |
1008 | ||
1009 | if (i >= length) | |
1010 | break; | |
1011 | ||
1012 | while (i < length) { | |
1013 | if (descriptors[i + 1] != USB_DT_ENDPOINT) { | |
1014 | break; | |
1015 | } | |
1016 | ||
1017 | devep = descriptors[i + 2]; | |
1018 | switch (descriptors[i + 3] & 0x3) { | |
1019 | case 0x00: | |
1020 | type = USBDEVFS_URB_TYPE_CONTROL; | |
1021 | break; | |
1022 | case 0x01: | |
1023 | type = USBDEVFS_URB_TYPE_ISO; | |
1024 | set_max_packet_size(s, (devep & 0xf), descriptors + i); | |
1025 | break; | |
1026 | case 0x02: | |
1027 | type = USBDEVFS_URB_TYPE_BULK; | |
1028 | break; | |
1029 | case 0x03: | |
1030 | type = USBDEVFS_URB_TYPE_INTERRUPT; | |
1031 | break; | |
1032 | default: | |
1033 | DPRINTF("usb_host: malformed endpoint type\n"); | |
1034 | type = USBDEVFS_URB_TYPE_BULK; | |
1035 | } | |
1036 | s->endp_table[(devep & 0xf) - 1].type = type; | |
1037 | s->endp_table[(devep & 0xf) - 1].halted = 0; | |
1038 | ||
1039 | i += descriptors[i]; | |
1040 | } | |
1041 | } | |
1042 | return 0; | |
1043 | } | |
1044 | ||
1045 | static int usb_host_open(USBHostDevice *dev, int bus_num, | |
1046 | int addr, char *port, const char *prod_name) | |
1047 | { | |
1048 | int fd = -1, ret; | |
1049 | struct usbdevfs_connectinfo ci; | |
1050 | char buf[1024]; | |
1051 | ||
1052 | if (dev->fd != -1) { | |
1053 | goto fail; | |
1054 | } | |
1055 | printf("husb: open device %d.%d\n", bus_num, addr); | |
1056 | ||
1057 | if (!usb_host_device_path) { | |
1058 | perror("husb: USB Host Device Path not set"); | |
1059 | goto fail; | |
1060 | } | |
1061 | snprintf(buf, sizeof(buf), "%s/%03d/%03d", usb_host_device_path, | |
1062 | bus_num, addr); | |
1063 | fd = open(buf, O_RDWR | O_NONBLOCK); | |
1064 | if (fd < 0) { | |
1065 | perror(buf); | |
1066 | goto fail; | |
1067 | } | |
1068 | DPRINTF("husb: opened %s\n", buf); | |
1069 | ||
1070 | dev->bus_num = bus_num; | |
1071 | dev->addr = addr; | |
1072 | strcpy(dev->port, port); | |
1073 | dev->fd = fd; | |
1074 | ||
1075 | /* read the device description */ | |
1076 | dev->descr_len = read(fd, dev->descr, sizeof(dev->descr)); | |
1077 | if (dev->descr_len <= 0) { | |
1078 | perror("husb: reading device data failed"); | |
1079 | goto fail; | |
1080 | } | |
1081 | ||
1082 | #ifdef DEBUG | |
1083 | { | |
1084 | int x; | |
1085 | printf("=== begin dumping device descriptor data ===\n"); | |
1086 | for (x = 0; x < dev->descr_len; x++) { | |
1087 | printf("%02x ", dev->descr[x]); | |
1088 | } | |
1089 | printf("\n=== end dumping device descriptor data ===\n"); | |
1090 | } | |
1091 | #endif | |
1092 | ||
1093 | ||
1094 | /* | |
1095 | * Initial configuration is -1 which makes us claim first | |
1096 | * available config. We used to start with 1, which does not | |
1097 | * always work. I've seen devices where first config starts | |
1098 | * with 2. | |
1099 | */ | |
1100 | if (!usb_host_claim_interfaces(dev, -1)) { | |
1101 | goto fail; | |
1102 | } | |
1103 | ||
1104 | ret = ioctl(fd, USBDEVFS_CONNECTINFO, &ci); | |
1105 | if (ret < 0) { | |
1106 | perror("usb_host_device_open: USBDEVFS_CONNECTINFO"); | |
1107 | goto fail; | |
1108 | } | |
1109 | ||
1110 | printf("husb: grabbed usb device %d.%d\n", bus_num, addr); | |
1111 | ||
1112 | ret = usb_linux_update_endp_table(dev); | |
1113 | if (ret) { | |
1114 | goto fail; | |
1115 | } | |
1116 | ||
1117 | if (ci.slow) { | |
1118 | dev->dev.speed = USB_SPEED_LOW; | |
1119 | } else { | |
1120 | dev->dev.speed = USB_SPEED_HIGH; | |
1121 | } | |
1122 | ||
1123 | if (!prod_name || prod_name[0] == '\0') { | |
1124 | snprintf(dev->dev.product_desc, sizeof(dev->dev.product_desc), | |
1125 | "host:%d.%d", bus_num, addr); | |
1126 | } else { | |
1127 | pstrcpy(dev->dev.product_desc, sizeof(dev->dev.product_desc), | |
1128 | prod_name); | |
1129 | } | |
1130 | ||
1131 | /* USB devio uses 'write' flag to check for async completions */ | |
1132 | qemu_set_fd_handler(dev->fd, NULL, async_complete, dev); | |
1133 | ||
1134 | usb_device_attach(&dev->dev); | |
1135 | return 0; | |
1136 | ||
1137 | fail: | |
1138 | dev->fd = -1; | |
1139 | if (fd != -1) { | |
1140 | close(fd); | |
1141 | } | |
1142 | return -1; | |
1143 | } | |
1144 | ||
1145 | static int usb_host_close(USBHostDevice *dev) | |
1146 | { | |
1147 | int i; | |
1148 | ||
1149 | if (dev->fd == -1) { | |
1150 | return -1; | |
1151 | } | |
1152 | ||
1153 | qemu_set_fd_handler(dev->fd, NULL, NULL, NULL); | |
1154 | dev->closing = 1; | |
1155 | for (i = 1; i <= MAX_ENDPOINTS; i++) { | |
1156 | if (is_isoc(dev, i)) { | |
1157 | usb_host_stop_n_free_iso(dev, i); | |
1158 | } | |
1159 | } | |
1160 | async_complete(dev); | |
1161 | dev->closing = 0; | |
1162 | usb_device_detach(&dev->dev); | |
1163 | ioctl(dev->fd, USBDEVFS_RESET); | |
1164 | close(dev->fd); | |
1165 | dev->fd = -1; | |
1166 | return 0; | |
1167 | } | |
1168 | ||
1169 | static void usb_host_exit_notifier(struct Notifier* n) | |
1170 | { | |
1171 | USBHostDevice *s = container_of(n, USBHostDevice, exit); | |
1172 | ||
1173 | if (s->fd != -1) { | |
1174 | ioctl(s->fd, USBDEVFS_RESET); | |
1175 | } | |
1176 | } | |
1177 | ||
1178 | static int usb_host_initfn(USBDevice *dev) | |
1179 | { | |
1180 | USBHostDevice *s = DO_UPCAST(USBHostDevice, dev, dev); | |
1181 | ||
1182 | dev->auto_attach = 0; | |
1183 | s->fd = -1; | |
1184 | QTAILQ_INSERT_TAIL(&hostdevs, s, next); | |
1185 | s->exit.notify = usb_host_exit_notifier; | |
1186 | qemu_add_exit_notifier(&s->exit); | |
1187 | usb_host_auto_check(NULL); | |
1188 | return 0; | |
1189 | } | |
1190 | ||
1191 | static struct USBDeviceInfo usb_host_dev_info = { | |
1192 | .product_desc = "USB Host Device", | |
1193 | .qdev.name = "usb-host", | |
1194 | .qdev.size = sizeof(USBHostDevice), | |
1195 | .init = usb_host_initfn, | |
1196 | .handle_packet = usb_generic_handle_packet, | |
1197 | .cancel_packet = usb_host_async_cancel, | |
1198 | .handle_data = usb_host_handle_data, | |
1199 | .handle_control = usb_host_handle_control, | |
1200 | .handle_reset = usb_host_handle_reset, | |
1201 | .handle_destroy = usb_host_handle_destroy, | |
1202 | .usbdevice_name = "host", | |
1203 | .usbdevice_init = usb_host_device_open, | |
1204 | .qdev.props = (Property[]) { | |
1205 | DEFINE_PROP_UINT32("hostbus", USBHostDevice, match.bus_num, 0), | |
1206 | DEFINE_PROP_UINT32("hostaddr", USBHostDevice, match.addr, 0), | |
1207 | DEFINE_PROP_STRING("hostport", USBHostDevice, match.port), | |
1208 | DEFINE_PROP_HEX32("vendorid", USBHostDevice, match.vendor_id, 0), | |
1209 | DEFINE_PROP_HEX32("productid", USBHostDevice, match.product_id, 0), | |
1210 | DEFINE_PROP_END_OF_LIST(), | |
1211 | }, | |
1212 | }; | |
1213 | ||
1214 | static void usb_host_register_devices(void) | |
1215 | { | |
1216 | usb_qdev_register(&usb_host_dev_info); | |
1217 | } | |
1218 | device_init(usb_host_register_devices) | |
1219 | ||
1220 | USBDevice *usb_host_device_open(const char *devname) | |
1221 | { | |
1222 | struct USBAutoFilter filter; | |
1223 | USBDevice *dev; | |
1224 | char *p; | |
1225 | ||
1226 | dev = usb_create(NULL /* FIXME */, "usb-host"); | |
1227 | ||
1228 | if (strstr(devname, "auto:")) { | |
1229 | if (parse_filter(devname, &filter) < 0) { | |
1230 | goto fail; | |
1231 | } | |
1232 | } else { | |
1233 | if ((p = strchr(devname, '.'))) { | |
1234 | filter.bus_num = strtoul(devname, NULL, 0); | |
1235 | filter.addr = strtoul(p + 1, NULL, 0); | |
1236 | filter.vendor_id = 0; | |
1237 | filter.product_id = 0; | |
1238 | } else if ((p = strchr(devname, ':'))) { | |
1239 | filter.bus_num = 0; | |
1240 | filter.addr = 0; | |
1241 | filter.vendor_id = strtoul(devname, NULL, 16); | |
1242 | filter.product_id = strtoul(p + 1, NULL, 16); | |
1243 | } else { | |
1244 | goto fail; | |
1245 | } | |
1246 | } | |
1247 | ||
1248 | qdev_prop_set_uint32(&dev->qdev, "hostbus", filter.bus_num); | |
1249 | qdev_prop_set_uint32(&dev->qdev, "hostaddr", filter.addr); | |
1250 | qdev_prop_set_uint32(&dev->qdev, "vendorid", filter.vendor_id); | |
1251 | qdev_prop_set_uint32(&dev->qdev, "productid", filter.product_id); | |
1252 | qdev_init_nofail(&dev->qdev); | |
1253 | return dev; | |
1254 | ||
1255 | fail: | |
1256 | qdev_free(&dev->qdev); | |
1257 | return NULL; | |
1258 | } | |
1259 | ||
1260 | int usb_host_device_close(const char *devname) | |
1261 | { | |
1262 | #if 0 | |
1263 | char product_name[PRODUCT_NAME_SZ]; | |
1264 | int bus_num, addr; | |
1265 | USBHostDevice *s; | |
1266 | ||
1267 | if (strstr(devname, "auto:")) { | |
1268 | return usb_host_auto_del(devname); | |
1269 | } | |
1270 | if (usb_host_find_device(&bus_num, &addr, product_name, | |
1271 | sizeof(product_name), devname) < 0) { | |
1272 | return -1; | |
1273 | } | |
1274 | s = hostdev_find(bus_num, addr); | |
1275 | if (s) { | |
1276 | usb_device_delete_addr(s->bus_num, s->dev.addr); | |
1277 | return 0; | |
1278 | } | |
1279 | #endif | |
1280 | ||
1281 | return -1; | |
1282 | } | |
1283 | ||
1284 | static int get_tag_value(char *buf, int buf_size, | |
1285 | const char *str, const char *tag, | |
1286 | const char *stopchars) | |
1287 | { | |
1288 | const char *p; | |
1289 | char *q; | |
1290 | p = strstr(str, tag); | |
1291 | if (!p) { | |
1292 | return -1; | |
1293 | } | |
1294 | p += strlen(tag); | |
1295 | while (qemu_isspace(*p)) { | |
1296 | p++; | |
1297 | } | |
1298 | q = buf; | |
1299 | while (*p != '\0' && !strchr(stopchars, *p)) { | |
1300 | if ((q - buf) < (buf_size - 1)) { | |
1301 | *q++ = *p; | |
1302 | } | |
1303 | p++; | |
1304 | } | |
1305 | *q = '\0'; | |
1306 | return q - buf; | |
1307 | } | |
1308 | ||
1309 | /* | |
1310 | * Use /proc/bus/usb/devices or /dev/bus/usb/devices file to determine | |
1311 | * host's USB devices. This is legacy support since many distributions | |
1312 | * are moving to /sys/bus/usb | |
1313 | */ | |
1314 | static int usb_host_scan_dev(void *opaque, USBScanFunc *func) | |
1315 | { | |
1316 | FILE *f = NULL; | |
1317 | char line[1024]; | |
1318 | char buf[1024]; | |
1319 | int bus_num, addr, speed, device_count, class_id, product_id, vendor_id; | |
1320 | char product_name[512]; | |
1321 | int ret = 0; | |
1322 | ||
1323 | if (!usb_host_device_path) { | |
1324 | perror("husb: USB Host Device Path not set"); | |
1325 | goto the_end; | |
1326 | } | |
1327 | snprintf(line, sizeof(line), "%s/devices", usb_host_device_path); | |
1328 | f = fopen(line, "r"); | |
1329 | if (!f) { | |
1330 | perror("husb: cannot open devices file"); | |
1331 | goto the_end; | |
1332 | } | |
1333 | ||
1334 | device_count = 0; | |
1335 | bus_num = addr = speed = class_id = product_id = vendor_id = 0; | |
1336 | for(;;) { | |
1337 | if (fgets(line, sizeof(line), f) == NULL) { | |
1338 | break; | |
1339 | } | |
1340 | if (strlen(line) > 0) { | |
1341 | line[strlen(line) - 1] = '\0'; | |
1342 | } | |
1343 | if (line[0] == 'T' && line[1] == ':') { | |
1344 | if (device_count && (vendor_id || product_id)) { | |
1345 | /* New device. Add the previously discovered device. */ | |
1346 | ret = func(opaque, bus_num, addr, 0, class_id, vendor_id, | |
1347 | product_id, product_name, speed); | |
1348 | if (ret) { | |
1349 | goto the_end; | |
1350 | } | |
1351 | } | |
1352 | if (get_tag_value(buf, sizeof(buf), line, "Bus=", " ") < 0) { | |
1353 | goto fail; | |
1354 | } | |
1355 | bus_num = atoi(buf); | |
1356 | if (get_tag_value(buf, sizeof(buf), line, "Dev#=", " ") < 0) { | |
1357 | goto fail; | |
1358 | } | |
1359 | addr = atoi(buf); | |
1360 | if (get_tag_value(buf, sizeof(buf), line, "Spd=", " ") < 0) { | |
1361 | goto fail; | |
1362 | } | |
1363 | if (!strcmp(buf, "480")) { | |
1364 | speed = USB_SPEED_HIGH; | |
1365 | } else if (!strcmp(buf, "1.5")) { | |
1366 | speed = USB_SPEED_LOW; | |
1367 | } else { | |
1368 | speed = USB_SPEED_FULL; | |
1369 | } | |
1370 | product_name[0] = '\0'; | |
1371 | class_id = 0xff; | |
1372 | device_count++; | |
1373 | product_id = 0; | |
1374 | vendor_id = 0; | |
1375 | } else if (line[0] == 'P' && line[1] == ':') { | |
1376 | if (get_tag_value(buf, sizeof(buf), line, "Vendor=", " ") < 0) { | |
1377 | goto fail; | |
1378 | } | |
1379 | vendor_id = strtoul(buf, NULL, 16); | |
1380 | if (get_tag_value(buf, sizeof(buf), line, "ProdID=", " ") < 0) { | |
1381 | goto fail; | |
1382 | } | |
1383 | product_id = strtoul(buf, NULL, 16); | |
1384 | } else if (line[0] == 'S' && line[1] == ':') { | |
1385 | if (get_tag_value(buf, sizeof(buf), line, "Product=", "") < 0) { | |
1386 | goto fail; | |
1387 | } | |
1388 | pstrcpy(product_name, sizeof(product_name), buf); | |
1389 | } else if (line[0] == 'D' && line[1] == ':') { | |
1390 | if (get_tag_value(buf, sizeof(buf), line, "Cls=", " (") < 0) { | |
1391 | goto fail; | |
1392 | } | |
1393 | class_id = strtoul(buf, NULL, 16); | |
1394 | } | |
1395 | fail: ; | |
1396 | } | |
1397 | if (device_count && (vendor_id || product_id)) { | |
1398 | /* Add the last device. */ | |
1399 | ret = func(opaque, bus_num, addr, 0, class_id, vendor_id, | |
1400 | product_id, product_name, speed); | |
1401 | } | |
1402 | the_end: | |
1403 | if (f) { | |
1404 | fclose(f); | |
1405 | } | |
1406 | return ret; | |
1407 | } | |
1408 | ||
1409 | /* | |
1410 | * Read sys file-system device file | |
1411 | * | |
1412 | * @line address of buffer to put file contents in | |
1413 | * @line_size size of line | |
1414 | * @device_file path to device file (printf format string) | |
1415 | * @device_name device being opened (inserted into device_file) | |
1416 | * | |
1417 | * @return 0 failed, 1 succeeded ('line' contains data) | |
1418 | */ | |
1419 | static int usb_host_read_file(char *line, size_t line_size, | |
1420 | const char *device_file, const char *device_name) | |
1421 | { | |
1422 | FILE *f; | |
1423 | int ret = 0; | |
1424 | char filename[PATH_MAX]; | |
1425 | ||
1426 | snprintf(filename, PATH_MAX, USBSYSBUS_PATH "/devices/%s/%s", device_name, | |
1427 | device_file); | |
1428 | f = fopen(filename, "r"); | |
1429 | if (f) { | |
1430 | ret = fgets(line, line_size, f) != NULL; | |
1431 | fclose(f); | |
1432 | } | |
1433 | ||
1434 | return ret; | |
1435 | } | |
1436 | ||
1437 | /* | |
1438 | * Use /sys/bus/usb/devices/ directory to determine host's USB | |
1439 | * devices. | |
1440 | * | |
1441 | * This code is based on Robert Schiele's original patches posted to | |
1442 | * the Novell bug-tracker https://bugzilla.novell.com/show_bug.cgi?id=241950 | |
1443 | */ | |
1444 | static int usb_host_scan_sys(void *opaque, USBScanFunc *func) | |
1445 | { | |
1446 | DIR *dir = NULL; | |
1447 | char line[1024]; | |
1448 | int bus_num, addr, speed, class_id, product_id, vendor_id; | |
1449 | int ret = 0; | |
1450 | char port[MAX_PORTLEN]; | |
1451 | char product_name[512]; | |
1452 | struct dirent *de; | |
1453 | ||
1454 | dir = opendir(USBSYSBUS_PATH "/devices"); | |
1455 | if (!dir) { | |
1456 | perror("husb: cannot open devices directory"); | |
1457 | goto the_end; | |
1458 | } | |
1459 | ||
1460 | while ((de = readdir(dir))) { | |
1461 | if (de->d_name[0] != '.' && !strchr(de->d_name, ':')) { | |
1462 | if (sscanf(de->d_name, "%d-%7[0-9.]", &bus_num, port) < 2) { | |
1463 | continue; | |
1464 | } | |
1465 | ||
1466 | if (!usb_host_read_file(line, sizeof(line), "devnum", de->d_name)) { | |
1467 | goto the_end; | |
1468 | } | |
1469 | if (sscanf(line, "%d", &addr) != 1) { | |
1470 | goto the_end; | |
1471 | } | |
1472 | if (!usb_host_read_file(line, sizeof(line), "bDeviceClass", | |
1473 | de->d_name)) { | |
1474 | goto the_end; | |
1475 | } | |
1476 | if (sscanf(line, "%x", &class_id) != 1) { | |
1477 | goto the_end; | |
1478 | } | |
1479 | ||
1480 | if (!usb_host_read_file(line, sizeof(line), "idVendor", | |
1481 | de->d_name)) { | |
1482 | goto the_end; | |
1483 | } | |
1484 | if (sscanf(line, "%x", &vendor_id) != 1) { | |
1485 | goto the_end; | |
1486 | } | |
1487 | if (!usb_host_read_file(line, sizeof(line), "idProduct", | |
1488 | de->d_name)) { | |
1489 | goto the_end; | |
1490 | } | |
1491 | if (sscanf(line, "%x", &product_id) != 1) { | |
1492 | goto the_end; | |
1493 | } | |
1494 | if (!usb_host_read_file(line, sizeof(line), "product", | |
1495 | de->d_name)) { | |
1496 | *product_name = 0; | |
1497 | } else { | |
1498 | if (strlen(line) > 0) { | |
1499 | line[strlen(line) - 1] = '\0'; | |
1500 | } | |
1501 | pstrcpy(product_name, sizeof(product_name), line); | |
1502 | } | |
1503 | ||
1504 | if (!usb_host_read_file(line, sizeof(line), "speed", de->d_name)) { | |
1505 | goto the_end; | |
1506 | } | |
1507 | if (!strcmp(line, "480\n")) { | |
1508 | speed = USB_SPEED_HIGH; | |
1509 | } else if (!strcmp(line, "1.5\n")) { | |
1510 | speed = USB_SPEED_LOW; | |
1511 | } else { | |
1512 | speed = USB_SPEED_FULL; | |
1513 | } | |
1514 | ||
1515 | ret = func(opaque, bus_num, addr, port, class_id, vendor_id, | |
1516 | product_id, product_name, speed); | |
1517 | if (ret) { | |
1518 | goto the_end; | |
1519 | } | |
1520 | } | |
1521 | } | |
1522 | the_end: | |
1523 | if (dir) { | |
1524 | closedir(dir); | |
1525 | } | |
1526 | return ret; | |
1527 | } | |
1528 | ||
1529 | /* | |
1530 | * Determine how to access the host's USB devices and call the | |
1531 | * specific support function. | |
1532 | */ | |
1533 | static int usb_host_scan(void *opaque, USBScanFunc *func) | |
1534 | { | |
1535 | Monitor *mon = cur_mon; | |
1536 | FILE *f = NULL; | |
1537 | DIR *dir = NULL; | |
1538 | int ret = 0; | |
1539 | const char *fs_type[] = {"unknown", "proc", "dev", "sys"}; | |
1540 | char devpath[PATH_MAX]; | |
1541 | ||
1542 | /* only check the host once */ | |
1543 | if (!usb_fs_type) { | |
1544 | dir = opendir(USBSYSBUS_PATH "/devices"); | |
1545 | if (dir) { | |
1546 | /* devices found in /dev/bus/usb/ (yes - not a mistake!) */ | |
1547 | strcpy(devpath, USBDEVBUS_PATH); | |
1548 | usb_fs_type = USB_FS_SYS; | |
1549 | closedir(dir); | |
1550 | DPRINTF(USBDBG_DEVOPENED, USBSYSBUS_PATH); | |
1551 | goto found_devices; | |
1552 | } | |
1553 | f = fopen(USBPROCBUS_PATH "/devices", "r"); | |
1554 | if (f) { | |
1555 | /* devices found in /proc/bus/usb/ */ | |
1556 | strcpy(devpath, USBPROCBUS_PATH); | |
1557 | usb_fs_type = USB_FS_PROC; | |
1558 | fclose(f); | |
1559 | DPRINTF(USBDBG_DEVOPENED, USBPROCBUS_PATH); | |
1560 | goto found_devices; | |
1561 | } | |
1562 | /* try additional methods if an access method hasn't been found yet */ | |
1563 | f = fopen(USBDEVBUS_PATH "/devices", "r"); | |
1564 | if (f) { | |
1565 | /* devices found in /dev/bus/usb/ */ | |
1566 | strcpy(devpath, USBDEVBUS_PATH); | |
1567 | usb_fs_type = USB_FS_DEV; | |
1568 | fclose(f); | |
1569 | DPRINTF(USBDBG_DEVOPENED, USBDEVBUS_PATH); | |
1570 | goto found_devices; | |
1571 | } | |
1572 | found_devices: | |
1573 | if (!usb_fs_type) { | |
1574 | if (mon) { | |
1575 | monitor_printf(mon, "husb: unable to access USB devices\n"); | |
1576 | } | |
1577 | return -ENOENT; | |
1578 | } | |
1579 | ||
1580 | /* the module setting (used later for opening devices) */ | |
1581 | usb_host_device_path = qemu_mallocz(strlen(devpath)+1); | |
1582 | strcpy(usb_host_device_path, devpath); | |
1583 | if (mon) { | |
1584 | monitor_printf(mon, "husb: using %s file-system with %s\n", | |
1585 | fs_type[usb_fs_type], usb_host_device_path); | |
1586 | } | |
1587 | } | |
1588 | ||
1589 | switch (usb_fs_type) { | |
1590 | case USB_FS_PROC: | |
1591 | case USB_FS_DEV: | |
1592 | ret = usb_host_scan_dev(opaque, func); | |
1593 | break; | |
1594 | case USB_FS_SYS: | |
1595 | ret = usb_host_scan_sys(opaque, func); | |
1596 | break; | |
1597 | default: | |
1598 | ret = -EINVAL; | |
1599 | break; | |
1600 | } | |
1601 | return ret; | |
1602 | } | |
1603 | ||
1604 | static QEMUTimer *usb_auto_timer; | |
1605 | ||
1606 | static int usb_host_auto_scan(void *opaque, int bus_num, int addr, char *port, | |
1607 | int class_id, int vendor_id, int product_id, | |
1608 | const char *product_name, int speed) | |
1609 | { | |
1610 | struct USBAutoFilter *f; | |
1611 | struct USBHostDevice *s; | |
1612 | ||
1613 | /* Ignore hubs */ | |
1614 | if (class_id == 9) | |
1615 | return 0; | |
1616 | ||
1617 | QTAILQ_FOREACH(s, &hostdevs, next) { | |
1618 | f = &s->match; | |
1619 | ||
1620 | if (f->bus_num > 0 && f->bus_num != bus_num) { | |
1621 | continue; | |
1622 | } | |
1623 | if (f->addr > 0 && f->addr != addr) { | |
1624 | continue; | |
1625 | } | |
1626 | if (f->port != NULL && (port == NULL || strcmp(f->port, port) != 0)) { | |
1627 | continue; | |
1628 | } | |
1629 | ||
1630 | if (f->vendor_id > 0 && f->vendor_id != vendor_id) { | |
1631 | continue; | |
1632 | } | |
1633 | ||
1634 | if (f->product_id > 0 && f->product_id != product_id) { | |
1635 | continue; | |
1636 | } | |
1637 | /* We got a match */ | |
1638 | ||
1639 | /* Already attached ? */ | |
1640 | if (s->fd != -1) { | |
1641 | return 0; | |
1642 | } | |
1643 | DPRINTF("husb: auto open: bus_num %d addr %d\n", bus_num, addr); | |
1644 | ||
1645 | usb_host_open(s, bus_num, addr, port, product_name); | |
1646 | } | |
1647 | ||
1648 | return 0; | |
1649 | } | |
1650 | ||
1651 | static void usb_host_auto_check(void *unused) | |
1652 | { | |
1653 | struct USBHostDevice *s; | |
1654 | int unconnected = 0; | |
1655 | ||
1656 | usb_host_scan(NULL, usb_host_auto_scan); | |
1657 | ||
1658 | QTAILQ_FOREACH(s, &hostdevs, next) { | |
1659 | if (s->fd == -1) { | |
1660 | unconnected++; | |
1661 | } | |
1662 | } | |
1663 | ||
1664 | if (unconnected == 0) { | |
1665 | /* nothing to watch */ | |
1666 | if (usb_auto_timer) { | |
1667 | qemu_del_timer(usb_auto_timer); | |
1668 | } | |
1669 | return; | |
1670 | } | |
1671 | ||
1672 | if (!usb_auto_timer) { | |
1673 | usb_auto_timer = qemu_new_timer_ms(rt_clock, usb_host_auto_check, NULL); | |
1674 | if (!usb_auto_timer) { | |
1675 | return; | |
1676 | } | |
1677 | } | |
1678 | qemu_mod_timer(usb_auto_timer, qemu_get_clock_ms(rt_clock) + 2000); | |
1679 | } | |
1680 | ||
1681 | /* | |
1682 | * Autoconnect filter | |
1683 | * Format: | |
1684 | * auto:bus:dev[:vid:pid] | |
1685 | * auto:bus.dev[:vid:pid] | |
1686 | * | |
1687 | * bus - bus number (dec, * means any) | |
1688 | * dev - device number (dec, * means any) | |
1689 | * vid - vendor id (hex, * means any) | |
1690 | * pid - product id (hex, * means any) | |
1691 | * | |
1692 | * See 'lsusb' output. | |
1693 | */ | |
1694 | static int parse_filter(const char *spec, struct USBAutoFilter *f) | |
1695 | { | |
1696 | enum { BUS, DEV, VID, PID, DONE }; | |
1697 | const char *p = spec; | |
1698 | int i; | |
1699 | ||
1700 | f->bus_num = 0; | |
1701 | f->addr = 0; | |
1702 | f->vendor_id = 0; | |
1703 | f->product_id = 0; | |
1704 | ||
1705 | for (i = BUS; i < DONE; i++) { | |
1706 | p = strpbrk(p, ":."); | |
1707 | if (!p) { | |
1708 | break; | |
1709 | } | |
1710 | p++; | |
1711 | ||
1712 | if (*p == '*') { | |
1713 | continue; | |
1714 | } | |
1715 | switch(i) { | |
1716 | case BUS: f->bus_num = strtol(p, NULL, 10); break; | |
1717 | case DEV: f->addr = strtol(p, NULL, 10); break; | |
1718 | case VID: f->vendor_id = strtol(p, NULL, 16); break; | |
1719 | case PID: f->product_id = strtol(p, NULL, 16); break; | |
1720 | } | |
1721 | } | |
1722 | ||
1723 | if (i < DEV) { | |
1724 | fprintf(stderr, "husb: invalid auto filter spec %s\n", spec); | |
1725 | return -1; | |
1726 | } | |
1727 | ||
1728 | return 0; | |
1729 | } | |
1730 | ||
1731 | /**********************/ | |
1732 | /* USB host device info */ | |
1733 | ||
1734 | struct usb_class_info { | |
1735 | int class; | |
1736 | const char *class_name; | |
1737 | }; | |
1738 | ||
1739 | static const struct usb_class_info usb_class_info[] = { | |
1740 | { USB_CLASS_AUDIO, "Audio"}, | |
1741 | { USB_CLASS_COMM, "Communication"}, | |
1742 | { USB_CLASS_HID, "HID"}, | |
1743 | { USB_CLASS_HUB, "Hub" }, | |
1744 | { USB_CLASS_PHYSICAL, "Physical" }, | |
1745 | { USB_CLASS_PRINTER, "Printer" }, | |
1746 | { USB_CLASS_MASS_STORAGE, "Storage" }, | |
1747 | { USB_CLASS_CDC_DATA, "Data" }, | |
1748 | { USB_CLASS_APP_SPEC, "Application Specific" }, | |
1749 | { USB_CLASS_VENDOR_SPEC, "Vendor Specific" }, | |
1750 | { USB_CLASS_STILL_IMAGE, "Still Image" }, | |
1751 | { USB_CLASS_CSCID, "Smart Card" }, | |
1752 | { USB_CLASS_CONTENT_SEC, "Content Security" }, | |
1753 | { -1, NULL } | |
1754 | }; | |
1755 | ||
1756 | static const char *usb_class_str(uint8_t class) | |
1757 | { | |
1758 | const struct usb_class_info *p; | |
1759 | for(p = usb_class_info; p->class != -1; p++) { | |
1760 | if (p->class == class) { | |
1761 | break; | |
1762 | } | |
1763 | } | |
1764 | return p->class_name; | |
1765 | } | |
1766 | ||
1767 | static void usb_info_device(Monitor *mon, int bus_num, int addr, char *port, | |
1768 | int class_id, int vendor_id, int product_id, | |
1769 | const char *product_name, | |
1770 | int speed) | |
1771 | { | |
1772 | const char *class_str, *speed_str; | |
1773 | ||
1774 | switch(speed) { | |
1775 | case USB_SPEED_LOW: | |
1776 | speed_str = "1.5"; | |
1777 | break; | |
1778 | case USB_SPEED_FULL: | |
1779 | speed_str = "12"; | |
1780 | break; | |
1781 | case USB_SPEED_HIGH: | |
1782 | speed_str = "480"; | |
1783 | break; | |
1784 | default: | |
1785 | speed_str = "?"; | |
1786 | break; | |
1787 | } | |
1788 | ||
1789 | monitor_printf(mon, " Bus %d, Addr %d, Port %s, Speed %s Mb/s\n", | |
1790 | bus_num, addr, port, speed_str); | |
1791 | class_str = usb_class_str(class_id); | |
1792 | if (class_str) { | |
1793 | monitor_printf(mon, " %s:", class_str); | |
1794 | } else { | |
1795 | monitor_printf(mon, " Class %02x:", class_id); | |
1796 | } | |
1797 | monitor_printf(mon, " USB device %04x:%04x", vendor_id, product_id); | |
1798 | if (product_name[0] != '\0') { | |
1799 | monitor_printf(mon, ", %s", product_name); | |
1800 | } | |
1801 | monitor_printf(mon, "\n"); | |
1802 | } | |
1803 | ||
1804 | static int usb_host_info_device(void *opaque, int bus_num, int addr, | |
1805 | char *path, int class_id, | |
1806 | int vendor_id, int product_id, | |
1807 | const char *product_name, | |
1808 | int speed) | |
1809 | { | |
1810 | Monitor *mon = opaque; | |
1811 | ||
1812 | usb_info_device(mon, bus_num, addr, path, class_id, vendor_id, product_id, | |
1813 | product_name, speed); | |
1814 | return 0; | |
1815 | } | |
1816 | ||
1817 | static void dec2str(int val, char *str, size_t size) | |
1818 | { | |
1819 | if (val == 0) { | |
1820 | snprintf(str, size, "*"); | |
1821 | } else { | |
1822 | snprintf(str, size, "%d", val); | |
1823 | } | |
1824 | } | |
1825 | ||
1826 | static void hex2str(int val, char *str, size_t size) | |
1827 | { | |
1828 | if (val == 0) { | |
1829 | snprintf(str, size, "*"); | |
1830 | } else { | |
1831 | snprintf(str, size, "%04x", val); | |
1832 | } | |
1833 | } | |
1834 | ||
1835 | void usb_host_info(Monitor *mon) | |
1836 | { | |
1837 | struct USBAutoFilter *f; | |
1838 | struct USBHostDevice *s; | |
1839 | ||
1840 | usb_host_scan(mon, usb_host_info_device); | |
1841 | ||
1842 | if (QTAILQ_EMPTY(&hostdevs)) { | |
1843 | return; | |
1844 | } | |
1845 | ||
1846 | monitor_printf(mon, " Auto filters:\n"); | |
1847 | QTAILQ_FOREACH(s, &hostdevs, next) { | |
1848 | char bus[10], addr[10], vid[10], pid[10]; | |
1849 | f = &s->match; | |
1850 | dec2str(f->bus_num, bus, sizeof(bus)); | |
1851 | dec2str(f->addr, addr, sizeof(addr)); | |
1852 | hex2str(f->vendor_id, vid, sizeof(vid)); | |
1853 | hex2str(f->product_id, pid, sizeof(pid)); | |
1854 | monitor_printf(mon, " Bus %s, Addr %s, Port %s, ID %s:%s\n", | |
1855 | bus, addr, f->port ? f->port : "*", vid, pid); | |
1856 | } | |
1857 | } |