root / usb-linux.c @ 6dfcdccb
History | View | Annotate | Download (50.2 kB)
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 |
#include <signal.h> |
41 |
|
42 |
#include <linux/usbdevice_fs.h> |
43 |
#include <linux/version.h> |
44 |
#include "hw/usb.h" |
45 |
|
46 |
/* We redefine it to avoid version problems */
|
47 |
struct usb_ctrltransfer {
|
48 |
uint8_t bRequestType; |
49 |
uint8_t bRequest; |
50 |
uint16_t wValue; |
51 |
uint16_t wIndex; |
52 |
uint16_t wLength; |
53 |
uint32_t timeout; |
54 |
void *data;
|
55 |
}; |
56 |
|
57 |
typedef int USBScanFunc(void *opaque, int bus_num, int addr, char *port, |
58 |
int class_id, int vendor_id, int product_id, |
59 |
const char *product_name, int speed); |
60 |
|
61 |
//#define DEBUG
|
62 |
|
63 |
#ifdef DEBUG
|
64 |
#define DPRINTF printf
|
65 |
#else
|
66 |
#define DPRINTF(...)
|
67 |
#endif
|
68 |
|
69 |
#define USBDBG_DEVOPENED "husb: opened %s/devices\n" |
70 |
|
71 |
#define USBPROCBUS_PATH "/proc/bus/usb" |
72 |
#define PRODUCT_NAME_SZ 32 |
73 |
#define MAX_ENDPOINTS 15 |
74 |
#define MAX_PORTLEN 16 |
75 |
#define USBDEVBUS_PATH "/dev/bus/usb" |
76 |
#define USBSYSBUS_PATH "/sys/bus/usb" |
77 |
|
78 |
static char *usb_host_device_path; |
79 |
|
80 |
#define USB_FS_NONE 0 |
81 |
#define USB_FS_PROC 1 |
82 |
#define USB_FS_DEV 2 |
83 |
#define USB_FS_SYS 3 |
84 |
|
85 |
static int usb_fs_type; |
86 |
|
87 |
/* endpoint association data */
|
88 |
#define ISO_FRAME_DESC_PER_URB 32 |
89 |
#define ISO_URB_COUNT 3 |
90 |
#define INVALID_EP_TYPE 255 |
91 |
|
92 |
/* devio.c limits single requests to 16k */
|
93 |
#define MAX_USBFS_BUFFER_SIZE 16384 |
94 |
|
95 |
typedef struct AsyncURB AsyncURB; |
96 |
|
97 |
struct endp_data {
|
98 |
uint8_t type; |
99 |
uint8_t halted; |
100 |
uint8_t iso_started; |
101 |
AsyncURB *iso_urb; |
102 |
int iso_urb_idx;
|
103 |
int iso_buffer_used;
|
104 |
int max_packet_size;
|
105 |
}; |
106 |
|
107 |
struct USBAutoFilter {
|
108 |
uint32_t bus_num; |
109 |
uint32_t addr; |
110 |
char *port;
|
111 |
uint32_t vendor_id; |
112 |
uint32_t product_id; |
113 |
}; |
114 |
|
115 |
typedef struct USBHostDevice { |
116 |
USBDevice dev; |
117 |
int fd;
|
118 |
|
119 |
uint8_t descr[1024];
|
120 |
int descr_len;
|
121 |
int configuration;
|
122 |
int ninterfaces;
|
123 |
int closing;
|
124 |
Notifier exit; |
125 |
|
126 |
struct endp_data endp_table[MAX_ENDPOINTS];
|
127 |
QLIST_HEAD(, AsyncURB) aurbs; |
128 |
|
129 |
/* Host side address */
|
130 |
int bus_num;
|
131 |
int addr;
|
132 |
char port[MAX_PORTLEN];
|
133 |
struct USBAutoFilter match;
|
134 |
|
135 |
QTAILQ_ENTRY(USBHostDevice) next; |
136 |
} USBHostDevice; |
137 |
|
138 |
static QTAILQ_HEAD(, USBHostDevice) hostdevs = QTAILQ_HEAD_INITIALIZER(hostdevs);
|
139 |
|
140 |
static int usb_host_close(USBHostDevice *dev); |
141 |
static int parse_filter(const char *spec, struct USBAutoFilter *f); |
142 |
static void usb_host_auto_check(void *unused); |
143 |
static int usb_host_read_file(char *line, size_t line_size, |
144 |
const char *device_file, const char *device_name); |
145 |
|
146 |
static int is_isoc(USBHostDevice *s, int ep) |
147 |
{ |
148 |
return s->endp_table[ep - 1].type == USBDEVFS_URB_TYPE_ISO; |
149 |
} |
150 |
|
151 |
static int is_valid(USBHostDevice *s, int ep) |
152 |
{ |
153 |
return s->endp_table[ep - 1].type != INVALID_EP_TYPE; |
154 |
} |
155 |
|
156 |
static int is_halted(USBHostDevice *s, int ep) |
157 |
{ |
158 |
return s->endp_table[ep - 1].halted; |
159 |
} |
160 |
|
161 |
static void clear_halt(USBHostDevice *s, int ep) |
162 |
{ |
163 |
s->endp_table[ep - 1].halted = 0; |
164 |
} |
165 |
|
166 |
static void set_halt(USBHostDevice *s, int ep) |
167 |
{ |
168 |
s->endp_table[ep - 1].halted = 1; |
169 |
} |
170 |
|
171 |
static int is_iso_started(USBHostDevice *s, int ep) |
172 |
{ |
173 |
return s->endp_table[ep - 1].iso_started; |
174 |
} |
175 |
|
176 |
static void clear_iso_started(USBHostDevice *s, int ep) |
177 |
{ |
178 |
s->endp_table[ep - 1].iso_started = 0; |
179 |
} |
180 |
|
181 |
static void set_iso_started(USBHostDevice *s, int ep) |
182 |
{ |
183 |
s->endp_table[ep - 1].iso_started = 1; |
184 |
} |
185 |
|
186 |
static void set_iso_urb(USBHostDevice *s, int ep, AsyncURB *iso_urb) |
187 |
{ |
188 |
s->endp_table[ep - 1].iso_urb = iso_urb;
|
189 |
} |
190 |
|
191 |
static AsyncURB *get_iso_urb(USBHostDevice *s, int ep) |
192 |
{ |
193 |
return s->endp_table[ep - 1].iso_urb; |
194 |
} |
195 |
|
196 |
static void set_iso_urb_idx(USBHostDevice *s, int ep, int i) |
197 |
{ |
198 |
s->endp_table[ep - 1].iso_urb_idx = i;
|
199 |
} |
200 |
|
201 |
static int get_iso_urb_idx(USBHostDevice *s, int ep) |
202 |
{ |
203 |
return s->endp_table[ep - 1].iso_urb_idx; |
204 |
} |
205 |
|
206 |
static void set_iso_buffer_used(USBHostDevice *s, int ep, int i) |
207 |
{ |
208 |
s->endp_table[ep - 1].iso_buffer_used = i;
|
209 |
} |
210 |
|
211 |
static int get_iso_buffer_used(USBHostDevice *s, int ep) |
212 |
{ |
213 |
return s->endp_table[ep - 1].iso_buffer_used; |
214 |
} |
215 |
|
216 |
static void set_max_packet_size(USBHostDevice *s, int ep, uint8_t *descriptor) |
217 |
{ |
218 |
int raw = descriptor[4] + (descriptor[5] << 8); |
219 |
int size, microframes;
|
220 |
|
221 |
size = raw & 0x7ff;
|
222 |
switch ((raw >> 11) & 3) { |
223 |
case 1: microframes = 2; break; |
224 |
case 2: microframes = 3; break; |
225 |
default: microframes = 1; break; |
226 |
} |
227 |
DPRINTF("husb: max packet size: 0x%x -> %d x %d\n",
|
228 |
raw, microframes, size); |
229 |
s->endp_table[ep - 1].max_packet_size = size * microframes;
|
230 |
} |
231 |
|
232 |
static int get_max_packet_size(USBHostDevice *s, int ep) |
233 |
{ |
234 |
return s->endp_table[ep - 1].max_packet_size; |
235 |
} |
236 |
|
237 |
/*
|
238 |
* Async URB state.
|
239 |
* We always allocate iso packet descriptors even for bulk transfers
|
240 |
* to simplify allocation and casts.
|
241 |
*/
|
242 |
struct AsyncURB
|
243 |
{ |
244 |
struct usbdevfs_urb urb;
|
245 |
struct usbdevfs_iso_packet_desc isocpd[ISO_FRAME_DESC_PER_URB];
|
246 |
USBHostDevice *hdev; |
247 |
QLIST_ENTRY(AsyncURB) next; |
248 |
|
249 |
/* For regular async urbs */
|
250 |
USBPacket *packet; |
251 |
int more; /* large transfer, more urbs follow */ |
252 |
|
253 |
/* For buffered iso handling */
|
254 |
int iso_frame_idx; /* -1 means in flight */ |
255 |
}; |
256 |
|
257 |
static AsyncURB *async_alloc(USBHostDevice *s)
|
258 |
{ |
259 |
AsyncURB *aurb = qemu_mallocz(sizeof(AsyncURB));
|
260 |
aurb->hdev = s; |
261 |
QLIST_INSERT_HEAD(&s->aurbs, aurb, next); |
262 |
return aurb;
|
263 |
} |
264 |
|
265 |
static void async_free(AsyncURB *aurb) |
266 |
{ |
267 |
QLIST_REMOVE(aurb, next); |
268 |
qemu_free(aurb); |
269 |
} |
270 |
|
271 |
static void async_complete(void *opaque) |
272 |
{ |
273 |
USBHostDevice *s = opaque; |
274 |
AsyncURB *aurb; |
275 |
|
276 |
while (1) { |
277 |
USBPacket *p; |
278 |
|
279 |
int r = ioctl(s->fd, USBDEVFS_REAPURBNDELAY, &aurb);
|
280 |
if (r < 0) { |
281 |
if (errno == EAGAIN) {
|
282 |
return;
|
283 |
} |
284 |
if (errno == ENODEV && !s->closing) {
|
285 |
printf("husb: device %d.%d disconnected\n",
|
286 |
s->bus_num, s->addr); |
287 |
usb_host_close(s); |
288 |
usb_host_auto_check(NULL);
|
289 |
return;
|
290 |
} |
291 |
|
292 |
DPRINTF("husb: async. reap urb failed errno %d\n", errno);
|
293 |
return;
|
294 |
} |
295 |
|
296 |
DPRINTF("husb: async completed. aurb %p status %d alen %d\n",
|
297 |
aurb, aurb->urb.status, aurb->urb.actual_length); |
298 |
|
299 |
/* If this is a buffered iso urb mark it as complete and don't do
|
300 |
anything else (it is handled further in usb_host_handle_iso_data) */
|
301 |
if (aurb->iso_frame_idx == -1) { |
302 |
if (aurb->urb.status == -EPIPE) {
|
303 |
set_halt(s, aurb->urb.endpoint & 0xf);
|
304 |
} |
305 |
aurb->iso_frame_idx = 0;
|
306 |
continue;
|
307 |
} |
308 |
|
309 |
p = aurb->packet; |
310 |
|
311 |
if (p) {
|
312 |
switch (aurb->urb.status) {
|
313 |
case 0: |
314 |
p->len += aurb->urb.actual_length; |
315 |
break;
|
316 |
|
317 |
case -EPIPE:
|
318 |
set_halt(s, p->devep); |
319 |
p->len = USB_RET_STALL; |
320 |
break;
|
321 |
|
322 |
default:
|
323 |
p->len = USB_RET_NAK; |
324 |
break;
|
325 |
} |
326 |
|
327 |
if (aurb->urb.type == USBDEVFS_URB_TYPE_CONTROL) {
|
328 |
usb_generic_async_ctrl_complete(&s->dev, p); |
329 |
} else if (!aurb->more) { |
330 |
usb_packet_complete(&s->dev, p); |
331 |
} |
332 |
} |
333 |
|
334 |
async_free(aurb); |
335 |
} |
336 |
} |
337 |
|
338 |
static void async_cancel(USBPacket *p, void *opaque) |
339 |
{ |
340 |
USBHostDevice *s = opaque; |
341 |
AsyncURB *aurb; |
342 |
|
343 |
QLIST_FOREACH(aurb, &s->aurbs, next) { |
344 |
if (p != aurb->packet) {
|
345 |
continue;
|
346 |
} |
347 |
|
348 |
DPRINTF("husb: async cancel: packet %p, aurb %p\n", p, aurb);
|
349 |
|
350 |
/* Mark it as dead (see async_complete above) */
|
351 |
aurb->packet = NULL;
|
352 |
|
353 |
int r = ioctl(s->fd, USBDEVFS_DISCARDURB, aurb);
|
354 |
if (r < 0) { |
355 |
DPRINTF("husb: async. discard urb failed errno %d\n", errno);
|
356 |
} |
357 |
} |
358 |
} |
359 |
|
360 |
static int usb_host_claim_interfaces(USBHostDevice *dev, int configuration) |
361 |
{ |
362 |
int dev_descr_len, config_descr_len;
|
363 |
int interface, nb_interfaces;
|
364 |
int ret, i;
|
365 |
|
366 |
if (configuration == 0) /* address state - ignore */ |
367 |
return 1; |
368 |
|
369 |
DPRINTF("husb: claiming interfaces. config %d\n", configuration);
|
370 |
|
371 |
i = 0;
|
372 |
dev_descr_len = dev->descr[0];
|
373 |
if (dev_descr_len > dev->descr_len) {
|
374 |
goto fail;
|
375 |
} |
376 |
|
377 |
i += dev_descr_len; |
378 |
while (i < dev->descr_len) {
|
379 |
DPRINTF("husb: i is %d, descr_len is %d, dl %d, dt %d\n",
|
380 |
i, dev->descr_len, |
381 |
dev->descr[i], dev->descr[i+1]);
|
382 |
|
383 |
if (dev->descr[i+1] != USB_DT_CONFIG) { |
384 |
i += dev->descr[i]; |
385 |
continue;
|
386 |
} |
387 |
config_descr_len = dev->descr[i]; |
388 |
|
389 |
printf("husb: config #%d need %d\n", dev->descr[i + 5], configuration); |
390 |
|
391 |
if (configuration < 0 || configuration == dev->descr[i + 5]) { |
392 |
configuration = dev->descr[i + 5];
|
393 |
break;
|
394 |
} |
395 |
|
396 |
i += config_descr_len; |
397 |
} |
398 |
|
399 |
if (i >= dev->descr_len) {
|
400 |
fprintf(stderr, |
401 |
"husb: update iface failed. no matching configuration\n");
|
402 |
goto fail;
|
403 |
} |
404 |
nb_interfaces = dev->descr[i + 4];
|
405 |
|
406 |
#ifdef USBDEVFS_DISCONNECT
|
407 |
/* earlier Linux 2.4 do not support that */
|
408 |
{ |
409 |
struct usbdevfs_ioctl ctrl;
|
410 |
for (interface = 0; interface < nb_interfaces; interface++) { |
411 |
ctrl.ioctl_code = USBDEVFS_DISCONNECT; |
412 |
ctrl.ifno = interface; |
413 |
ctrl.data = 0;
|
414 |
ret = ioctl(dev->fd, USBDEVFS_IOCTL, &ctrl); |
415 |
if (ret < 0 && errno != ENODATA) { |
416 |
perror("USBDEVFS_DISCONNECT");
|
417 |
goto fail;
|
418 |
} |
419 |
} |
420 |
} |
421 |
#endif
|
422 |
|
423 |
/* XXX: only grab if all interfaces are free */
|
424 |
for (interface = 0; interface < nb_interfaces; interface++) { |
425 |
ret = ioctl(dev->fd, USBDEVFS_CLAIMINTERFACE, &interface); |
426 |
if (ret < 0) { |
427 |
if (errno == EBUSY) {
|
428 |
printf("husb: update iface. device already grabbed\n");
|
429 |
} else {
|
430 |
perror("husb: failed to claim interface");
|
431 |
} |
432 |
fail:
|
433 |
return 0; |
434 |
} |
435 |
} |
436 |
|
437 |
printf("husb: %d interfaces claimed for configuration %d\n",
|
438 |
nb_interfaces, configuration); |
439 |
|
440 |
dev->ninterfaces = nb_interfaces; |
441 |
dev->configuration = configuration; |
442 |
return 1; |
443 |
} |
444 |
|
445 |
static int usb_host_release_interfaces(USBHostDevice *s) |
446 |
{ |
447 |
int ret, i;
|
448 |
|
449 |
DPRINTF("husb: releasing interfaces\n");
|
450 |
|
451 |
for (i = 0; i < s->ninterfaces; i++) { |
452 |
ret = ioctl(s->fd, USBDEVFS_RELEASEINTERFACE, &i); |
453 |
if (ret < 0) { |
454 |
perror("husb: failed to release interface");
|
455 |
return 0; |
456 |
} |
457 |
} |
458 |
|
459 |
return 1; |
460 |
} |
461 |
|
462 |
static void usb_host_handle_reset(USBDevice *dev) |
463 |
{ |
464 |
USBHostDevice *s = DO_UPCAST(USBHostDevice, dev, dev); |
465 |
|
466 |
DPRINTF("husb: reset device %u.%u\n", s->bus_num, s->addr);
|
467 |
|
468 |
ioctl(s->fd, USBDEVFS_RESET); |
469 |
|
470 |
usb_host_claim_interfaces(s, s->configuration); |
471 |
} |
472 |
|
473 |
static void usb_host_handle_destroy(USBDevice *dev) |
474 |
{ |
475 |
USBHostDevice *s = (USBHostDevice *)dev; |
476 |
|
477 |
usb_host_close(s); |
478 |
QTAILQ_REMOVE(&hostdevs, s, next); |
479 |
qemu_remove_exit_notifier(&s->exit); |
480 |
} |
481 |
|
482 |
static int usb_linux_update_endp_table(USBHostDevice *s); |
483 |
|
484 |
/* iso data is special, we need to keep enough urbs in flight to make sure
|
485 |
that the controller never runs out of them, otherwise the device will
|
486 |
likely suffer a buffer underrun / overrun. */
|
487 |
static AsyncURB *usb_host_alloc_iso(USBHostDevice *s, uint8_t ep, int in) |
488 |
{ |
489 |
AsyncURB *aurb; |
490 |
int i, j, len = get_max_packet_size(s, ep);
|
491 |
|
492 |
aurb = qemu_mallocz(ISO_URB_COUNT * sizeof(*aurb));
|
493 |
for (i = 0; i < ISO_URB_COUNT; i++) { |
494 |
aurb[i].urb.endpoint = ep; |
495 |
aurb[i].urb.buffer_length = ISO_FRAME_DESC_PER_URB * len; |
496 |
aurb[i].urb.buffer = qemu_malloc(aurb[i].urb.buffer_length); |
497 |
aurb[i].urb.type = USBDEVFS_URB_TYPE_ISO; |
498 |
aurb[i].urb.flags = USBDEVFS_URB_ISO_ASAP; |
499 |
aurb[i].urb.number_of_packets = ISO_FRAME_DESC_PER_URB; |
500 |
for (j = 0 ; j < ISO_FRAME_DESC_PER_URB; j++) |
501 |
aurb[i].urb.iso_frame_desc[j].length = len; |
502 |
if (in) {
|
503 |
aurb[i].urb.endpoint |= 0x80;
|
504 |
/* Mark as fully consumed (idle) */
|
505 |
aurb[i].iso_frame_idx = ISO_FRAME_DESC_PER_URB; |
506 |
} |
507 |
} |
508 |
set_iso_urb(s, ep, aurb); |
509 |
|
510 |
return aurb;
|
511 |
} |
512 |
|
513 |
static void usb_host_stop_n_free_iso(USBHostDevice *s, uint8_t ep) |
514 |
{ |
515 |
AsyncURB *aurb; |
516 |
int i, ret, killed = 0, free = 1; |
517 |
|
518 |
aurb = get_iso_urb(s, ep); |
519 |
if (!aurb) {
|
520 |
return;
|
521 |
} |
522 |
|
523 |
for (i = 0; i < ISO_URB_COUNT; i++) { |
524 |
/* in flight? */
|
525 |
if (aurb[i].iso_frame_idx == -1) { |
526 |
ret = ioctl(s->fd, USBDEVFS_DISCARDURB, &aurb[i]); |
527 |
if (ret < 0) { |
528 |
printf("husb: discard isoc in urb failed errno %d\n", errno);
|
529 |
free = 0;
|
530 |
continue;
|
531 |
} |
532 |
killed++; |
533 |
} |
534 |
} |
535 |
|
536 |
/* Make sure any urbs we've killed are reaped before we free them */
|
537 |
if (killed) {
|
538 |
async_complete(s); |
539 |
} |
540 |
|
541 |
for (i = 0; i < ISO_URB_COUNT; i++) { |
542 |
qemu_free(aurb[i].urb.buffer); |
543 |
} |
544 |
|
545 |
if (free)
|
546 |
qemu_free(aurb); |
547 |
else
|
548 |
printf("husb: leaking iso urbs because of discard failure\n");
|
549 |
set_iso_urb(s, ep, NULL);
|
550 |
set_iso_urb_idx(s, ep, 0);
|
551 |
clear_iso_started(s, ep); |
552 |
} |
553 |
|
554 |
static int urb_status_to_usb_ret(int status) |
555 |
{ |
556 |
switch (status) {
|
557 |
case -EPIPE:
|
558 |
return USB_RET_STALL;
|
559 |
default:
|
560 |
return USB_RET_NAK;
|
561 |
} |
562 |
} |
563 |
|
564 |
static int usb_host_handle_iso_data(USBHostDevice *s, USBPacket *p, int in) |
565 |
{ |
566 |
AsyncURB *aurb; |
567 |
int i, j, ret, max_packet_size, offset, len = 0; |
568 |
|
569 |
max_packet_size = get_max_packet_size(s, p->devep); |
570 |
if (max_packet_size == 0) |
571 |
return USB_RET_NAK;
|
572 |
|
573 |
aurb = get_iso_urb(s, p->devep); |
574 |
if (!aurb) {
|
575 |
aurb = usb_host_alloc_iso(s, p->devep, in); |
576 |
} |
577 |
|
578 |
i = get_iso_urb_idx(s, p->devep); |
579 |
j = aurb[i].iso_frame_idx; |
580 |
if (j >= 0 && j < ISO_FRAME_DESC_PER_URB) { |
581 |
if (in) {
|
582 |
/* Check urb status */
|
583 |
if (aurb[i].urb.status) {
|
584 |
len = urb_status_to_usb_ret(aurb[i].urb.status); |
585 |
/* Move to the next urb */
|
586 |
aurb[i].iso_frame_idx = ISO_FRAME_DESC_PER_URB - 1;
|
587 |
/* Check frame status */
|
588 |
} else if (aurb[i].urb.iso_frame_desc[j].status) { |
589 |
len = urb_status_to_usb_ret( |
590 |
aurb[i].urb.iso_frame_desc[j].status); |
591 |
/* Check the frame fits */
|
592 |
} else if (aurb[i].urb.iso_frame_desc[j].actual_length > p->len) { |
593 |
printf("husb: received iso data is larger then packet\n");
|
594 |
len = USB_RET_NAK; |
595 |
/* All good copy data over */
|
596 |
} else {
|
597 |
len = aurb[i].urb.iso_frame_desc[j].actual_length; |
598 |
memcpy(p->data, |
599 |
aurb[i].urb.buffer + |
600 |
j * aurb[i].urb.iso_frame_desc[0].length,
|
601 |
len); |
602 |
} |
603 |
} else {
|
604 |
len = p->len; |
605 |
offset = (j == 0) ? 0 : get_iso_buffer_used(s, p->devep); |
606 |
|
607 |
/* Check the frame fits */
|
608 |
if (len > max_packet_size) {
|
609 |
printf("husb: send iso data is larger then max packet size\n");
|
610 |
return USB_RET_NAK;
|
611 |
} |
612 |
|
613 |
/* All good copy data over */
|
614 |
memcpy(aurb[i].urb.buffer + offset, p->data, len); |
615 |
aurb[i].urb.iso_frame_desc[j].length = len; |
616 |
offset += len; |
617 |
set_iso_buffer_used(s, p->devep, offset); |
618 |
|
619 |
/* Start the stream once we have buffered enough data */
|
620 |
if (!is_iso_started(s, p->devep) && i == 1 && j == 8) { |
621 |
set_iso_started(s, p->devep); |
622 |
} |
623 |
} |
624 |
aurb[i].iso_frame_idx++; |
625 |
if (aurb[i].iso_frame_idx == ISO_FRAME_DESC_PER_URB) {
|
626 |
i = (i + 1) % ISO_URB_COUNT;
|
627 |
set_iso_urb_idx(s, p->devep, i); |
628 |
} |
629 |
} else {
|
630 |
if (in) {
|
631 |
set_iso_started(s, p->devep); |
632 |
} else {
|
633 |
DPRINTF("hubs: iso out error no free buffer, dropping packet\n");
|
634 |
} |
635 |
} |
636 |
|
637 |
if (is_iso_started(s, p->devep)) {
|
638 |
/* (Re)-submit all fully consumed / filled urbs */
|
639 |
for (i = 0; i < ISO_URB_COUNT; i++) { |
640 |
if (aurb[i].iso_frame_idx == ISO_FRAME_DESC_PER_URB) {
|
641 |
ret = ioctl(s->fd, USBDEVFS_SUBMITURB, &aurb[i]); |
642 |
if (ret < 0) { |
643 |
printf("husb error submitting iso urb %d: %d\n", i, errno);
|
644 |
if (!in || len == 0) { |
645 |
switch(errno) {
|
646 |
case ETIMEDOUT:
|
647 |
len = USB_RET_NAK; |
648 |
break;
|
649 |
case EPIPE:
|
650 |
default:
|
651 |
len = USB_RET_STALL; |
652 |
} |
653 |
} |
654 |
break;
|
655 |
} |
656 |
aurb[i].iso_frame_idx = -1;
|
657 |
} |
658 |
} |
659 |
} |
660 |
|
661 |
return len;
|
662 |
} |
663 |
|
664 |
static int usb_host_handle_data(USBDevice *dev, USBPacket *p) |
665 |
{ |
666 |
USBHostDevice *s = DO_UPCAST(USBHostDevice, dev, dev); |
667 |
struct usbdevfs_urb *urb;
|
668 |
AsyncURB *aurb; |
669 |
int ret, rem;
|
670 |
uint8_t *pbuf; |
671 |
uint8_t ep; |
672 |
|
673 |
if (!is_valid(s, p->devep)) {
|
674 |
return USB_RET_NAK;
|
675 |
} |
676 |
|
677 |
if (p->pid == USB_TOKEN_IN) {
|
678 |
ep = p->devep | 0x80;
|
679 |
} else {
|
680 |
ep = p->devep; |
681 |
} |
682 |
|
683 |
if (is_halted(s, p->devep)) {
|
684 |
ret = ioctl(s->fd, USBDEVFS_CLEAR_HALT, &ep); |
685 |
if (ret < 0) { |
686 |
DPRINTF("husb: failed to clear halt. ep 0x%x errno %d\n",
|
687 |
ep, errno); |
688 |
return USB_RET_NAK;
|
689 |
} |
690 |
clear_halt(s, p->devep); |
691 |
} |
692 |
|
693 |
if (is_isoc(s, p->devep)) {
|
694 |
return usb_host_handle_iso_data(s, p, p->pid == USB_TOKEN_IN);
|
695 |
} |
696 |
|
697 |
rem = p->len; |
698 |
pbuf = p->data; |
699 |
p->len = 0;
|
700 |
while (rem) {
|
701 |
aurb = async_alloc(s); |
702 |
aurb->packet = p; |
703 |
|
704 |
urb = &aurb->urb; |
705 |
urb->endpoint = ep; |
706 |
urb->type = USBDEVFS_URB_TYPE_BULK; |
707 |
urb->usercontext = s; |
708 |
urb->buffer = pbuf; |
709 |
|
710 |
if (rem > MAX_USBFS_BUFFER_SIZE) {
|
711 |
urb->buffer_length = MAX_USBFS_BUFFER_SIZE; |
712 |
aurb->more = 1;
|
713 |
} else {
|
714 |
urb->buffer_length = rem; |
715 |
aurb->more = 0;
|
716 |
} |
717 |
pbuf += urb->buffer_length; |
718 |
rem -= urb->buffer_length; |
719 |
|
720 |
ret = ioctl(s->fd, USBDEVFS_SUBMITURB, urb); |
721 |
|
722 |
DPRINTF("husb: data submit: ep 0x%x, len %u, more %d, packet %p, aurb %p\n",
|
723 |
urb->endpoint, urb->buffer_length, aurb->more, p, aurb); |
724 |
|
725 |
if (ret < 0) { |
726 |
DPRINTF("husb: submit failed. errno %d\n", errno);
|
727 |
async_free(aurb); |
728 |
|
729 |
switch(errno) {
|
730 |
case ETIMEDOUT:
|
731 |
return USB_RET_NAK;
|
732 |
case EPIPE:
|
733 |
default:
|
734 |
return USB_RET_STALL;
|
735 |
} |
736 |
} |
737 |
} |
738 |
|
739 |
usb_defer_packet(p, async_cancel, s); |
740 |
return USB_RET_ASYNC;
|
741 |
} |
742 |
|
743 |
static int ctrl_error(void) |
744 |
{ |
745 |
if (errno == ETIMEDOUT) {
|
746 |
return USB_RET_NAK;
|
747 |
} else {
|
748 |
return USB_RET_STALL;
|
749 |
} |
750 |
} |
751 |
|
752 |
static int usb_host_set_address(USBHostDevice *s, int addr) |
753 |
{ |
754 |
DPRINTF("husb: ctrl set addr %u\n", addr);
|
755 |
s->dev.addr = addr; |
756 |
return 0; |
757 |
} |
758 |
|
759 |
static int usb_host_set_config(USBHostDevice *s, int config) |
760 |
{ |
761 |
usb_host_release_interfaces(s); |
762 |
|
763 |
int ret = ioctl(s->fd, USBDEVFS_SETCONFIGURATION, &config);
|
764 |
|
765 |
DPRINTF("husb: ctrl set config %d ret %d errno %d\n", config, ret, errno);
|
766 |
|
767 |
if (ret < 0) { |
768 |
return ctrl_error();
|
769 |
} |
770 |
usb_host_claim_interfaces(s, config); |
771 |
return 0; |
772 |
} |
773 |
|
774 |
static int usb_host_set_interface(USBHostDevice *s, int iface, int alt) |
775 |
{ |
776 |
struct usbdevfs_setinterface si;
|
777 |
int i, ret;
|
778 |
|
779 |
for (i = 1; i <= MAX_ENDPOINTS; i++) { |
780 |
if (is_isoc(s, i)) {
|
781 |
usb_host_stop_n_free_iso(s, i); |
782 |
} |
783 |
} |
784 |
|
785 |
si.interface = iface; |
786 |
si.altsetting = alt; |
787 |
ret = ioctl(s->fd, USBDEVFS_SETINTERFACE, &si); |
788 |
|
789 |
DPRINTF("husb: ctrl set iface %d altset %d ret %d errno %d\n",
|
790 |
iface, alt, ret, errno); |
791 |
|
792 |
if (ret < 0) { |
793 |
return ctrl_error();
|
794 |
} |
795 |
usb_linux_update_endp_table(s); |
796 |
return 0; |
797 |
} |
798 |
|
799 |
static int usb_host_handle_control(USBDevice *dev, USBPacket *p, |
800 |
int request, int value, int index, int length, uint8_t *data) |
801 |
{ |
802 |
USBHostDevice *s = DO_UPCAST(USBHostDevice, dev, dev); |
803 |
struct usbdevfs_urb *urb;
|
804 |
AsyncURB *aurb; |
805 |
int ret;
|
806 |
|
807 |
/*
|
808 |
* Process certain standard device requests.
|
809 |
* These are infrequent and are processed synchronously.
|
810 |
*/
|
811 |
|
812 |
/* Note request is (bRequestType << 8) | bRequest */
|
813 |
DPRINTF("husb: ctrl type 0x%x req 0x%x val 0x%x index %u len %u\n",
|
814 |
request >> 8, request & 0xff, value, index, length); |
815 |
|
816 |
switch (request) {
|
817 |
case DeviceOutRequest | USB_REQ_SET_ADDRESS:
|
818 |
return usb_host_set_address(s, value);
|
819 |
|
820 |
case DeviceOutRequest | USB_REQ_SET_CONFIGURATION:
|
821 |
return usb_host_set_config(s, value & 0xff); |
822 |
|
823 |
case InterfaceOutRequest | USB_REQ_SET_INTERFACE:
|
824 |
return usb_host_set_interface(s, index, value);
|
825 |
} |
826 |
|
827 |
/* The rest are asynchronous */
|
828 |
|
829 |
if (length > sizeof(dev->data_buf)) { |
830 |
fprintf(stderr, "husb: ctrl buffer too small (%d > %zu)\n",
|
831 |
length, sizeof(dev->data_buf));
|
832 |
return USB_RET_STALL;
|
833 |
} |
834 |
|
835 |
aurb = async_alloc(s); |
836 |
aurb->packet = p; |
837 |
|
838 |
/*
|
839 |
* Setup ctrl transfer.
|
840 |
*
|
841 |
* s->ctrl is laid out such that data buffer immediately follows
|
842 |
* 'req' struct which is exactly what usbdevfs expects.
|
843 |
*/
|
844 |
urb = &aurb->urb; |
845 |
|
846 |
urb->type = USBDEVFS_URB_TYPE_CONTROL; |
847 |
urb->endpoint = p->devep; |
848 |
|
849 |
urb->buffer = &dev->setup_buf; |
850 |
urb->buffer_length = length + 8;
|
851 |
|
852 |
urb->usercontext = s; |
853 |
|
854 |
ret = ioctl(s->fd, USBDEVFS_SUBMITURB, urb); |
855 |
|
856 |
DPRINTF("husb: submit ctrl. len %u aurb %p\n", urb->buffer_length, aurb);
|
857 |
|
858 |
if (ret < 0) { |
859 |
DPRINTF("husb: submit failed. errno %d\n", errno);
|
860 |
async_free(aurb); |
861 |
|
862 |
switch(errno) {
|
863 |
case ETIMEDOUT:
|
864 |
return USB_RET_NAK;
|
865 |
case EPIPE:
|
866 |
default:
|
867 |
return USB_RET_STALL;
|
868 |
} |
869 |
} |
870 |
|
871 |
usb_defer_packet(p, async_cancel, s); |
872 |
return USB_RET_ASYNC;
|
873 |
} |
874 |
|
875 |
static int usb_linux_get_configuration(USBHostDevice *s) |
876 |
{ |
877 |
uint8_t configuration; |
878 |
struct usb_ctrltransfer ct;
|
879 |
int ret;
|
880 |
|
881 |
if (usb_fs_type == USB_FS_SYS) {
|
882 |
char device_name[32], line[1024]; |
883 |
int configuration;
|
884 |
|
885 |
sprintf(device_name, "%d-%s", s->bus_num, s->port);
|
886 |
|
887 |
if (!usb_host_read_file(line, sizeof(line), "bConfigurationValue", |
888 |
device_name)) { |
889 |
goto usbdevfs;
|
890 |
} |
891 |
if (sscanf(line, "%d", &configuration) != 1) { |
892 |
goto usbdevfs;
|
893 |
} |
894 |
return configuration;
|
895 |
} |
896 |
|
897 |
usbdevfs:
|
898 |
ct.bRequestType = USB_DIR_IN; |
899 |
ct.bRequest = USB_REQ_GET_CONFIGURATION; |
900 |
ct.wValue = 0;
|
901 |
ct.wIndex = 0;
|
902 |
ct.wLength = 1;
|
903 |
ct.data = &configuration; |
904 |
ct.timeout = 50;
|
905 |
|
906 |
ret = ioctl(s->fd, USBDEVFS_CONTROL, &ct); |
907 |
if (ret < 0) { |
908 |
perror("usb_linux_get_configuration");
|
909 |
return -1; |
910 |
} |
911 |
|
912 |
/* in address state */
|
913 |
if (configuration == 0) { |
914 |
return -1; |
915 |
} |
916 |
|
917 |
return configuration;
|
918 |
} |
919 |
|
920 |
static uint8_t usb_linux_get_alt_setting(USBHostDevice *s,
|
921 |
uint8_t configuration, uint8_t interface) |
922 |
{ |
923 |
uint8_t alt_setting; |
924 |
struct usb_ctrltransfer ct;
|
925 |
int ret;
|
926 |
|
927 |
if (usb_fs_type == USB_FS_SYS) {
|
928 |
char device_name[64], line[1024]; |
929 |
int alt_setting;
|
930 |
|
931 |
sprintf(device_name, "%d-%s:%d.%d", s->bus_num, s->port,
|
932 |
(int)configuration, (int)interface); |
933 |
|
934 |
if (!usb_host_read_file(line, sizeof(line), "bAlternateSetting", |
935 |
device_name)) { |
936 |
goto usbdevfs;
|
937 |
} |
938 |
if (sscanf(line, "%d", &alt_setting) != 1) { |
939 |
goto usbdevfs;
|
940 |
} |
941 |
return alt_setting;
|
942 |
} |
943 |
|
944 |
usbdevfs:
|
945 |
ct.bRequestType = USB_DIR_IN | USB_RECIP_INTERFACE; |
946 |
ct.bRequest = USB_REQ_GET_INTERFACE; |
947 |
ct.wValue = 0;
|
948 |
ct.wIndex = interface; |
949 |
ct.wLength = 1;
|
950 |
ct.data = &alt_setting; |
951 |
ct.timeout = 50;
|
952 |
ret = ioctl(s->fd, USBDEVFS_CONTROL, &ct); |
953 |
if (ret < 0) { |
954 |
/* Assume alt 0 on error */
|
955 |
return 0; |
956 |
} |
957 |
|
958 |
return alt_setting;
|
959 |
} |
960 |
|
961 |
/* returns 1 on problem encountered or 0 for success */
|
962 |
static int usb_linux_update_endp_table(USBHostDevice *s) |
963 |
{ |
964 |
uint8_t *descriptors; |
965 |
uint8_t devep, type, configuration, alt_interface; |
966 |
int interface, length, i;
|
967 |
|
968 |
for (i = 0; i < MAX_ENDPOINTS; i++) |
969 |
s->endp_table[i].type = INVALID_EP_TYPE; |
970 |
|
971 |
i = usb_linux_get_configuration(s); |
972 |
if (i < 0) |
973 |
return 1; |
974 |
configuration = i; |
975 |
|
976 |
/* get the desired configuration, interface, and endpoint descriptors
|
977 |
* from device description */
|
978 |
descriptors = &s->descr[18];
|
979 |
length = s->descr_len - 18;
|
980 |
i = 0;
|
981 |
|
982 |
if (descriptors[i + 1] != USB_DT_CONFIG || |
983 |
descriptors[i + 5] != configuration) {
|
984 |
DPRINTF("invalid descriptor data - configuration\n");
|
985 |
return 1; |
986 |
} |
987 |
i += descriptors[i]; |
988 |
|
989 |
while (i < length) {
|
990 |
if (descriptors[i + 1] != USB_DT_INTERFACE || |
991 |
(descriptors[i + 1] == USB_DT_INTERFACE &&
|
992 |
descriptors[i + 4] == 0)) { |
993 |
i += descriptors[i]; |
994 |
continue;
|
995 |
} |
996 |
|
997 |
interface = descriptors[i + 2];
|
998 |
alt_interface = usb_linux_get_alt_setting(s, configuration, interface); |
999 |
|
1000 |
/* the current interface descriptor is the active interface
|
1001 |
* and has endpoints */
|
1002 |
if (descriptors[i + 3] != alt_interface) { |
1003 |
i += descriptors[i]; |
1004 |
continue;
|
1005 |
} |
1006 |
|
1007 |
/* advance to the endpoints */
|
1008 |
while (i < length && descriptors[i +1] != USB_DT_ENDPOINT) { |
1009 |
i += descriptors[i]; |
1010 |
} |
1011 |
|
1012 |
if (i >= length)
|
1013 |
break;
|
1014 |
|
1015 |
while (i < length) {
|
1016 |
if (descriptors[i + 1] != USB_DT_ENDPOINT) { |
1017 |
break;
|
1018 |
} |
1019 |
|
1020 |
devep = descriptors[i + 2];
|
1021 |
switch (descriptors[i + 3] & 0x3) { |
1022 |
case 0x00: |
1023 |
type = USBDEVFS_URB_TYPE_CONTROL; |
1024 |
break;
|
1025 |
case 0x01: |
1026 |
type = USBDEVFS_URB_TYPE_ISO; |
1027 |
set_max_packet_size(s, (devep & 0xf), descriptors + i);
|
1028 |
break;
|
1029 |
case 0x02: |
1030 |
type = USBDEVFS_URB_TYPE_BULK; |
1031 |
break;
|
1032 |
case 0x03: |
1033 |
type = USBDEVFS_URB_TYPE_INTERRUPT; |
1034 |
break;
|
1035 |
default:
|
1036 |
DPRINTF("usb_host: malformed endpoint type\n");
|
1037 |
type = USBDEVFS_URB_TYPE_BULK; |
1038 |
} |
1039 |
s->endp_table[(devep & 0xf) - 1].type = type; |
1040 |
s->endp_table[(devep & 0xf) - 1].halted = 0; |
1041 |
|
1042 |
i += descriptors[i]; |
1043 |
} |
1044 |
} |
1045 |
return 0; |
1046 |
} |
1047 |
|
1048 |
static int usb_host_open(USBHostDevice *dev, int bus_num, |
1049 |
int addr, char *port, const char *prod_name) |
1050 |
{ |
1051 |
int fd = -1, ret; |
1052 |
struct usbdevfs_connectinfo ci;
|
1053 |
char buf[1024]; |
1054 |
|
1055 |
if (dev->fd != -1) { |
1056 |
goto fail;
|
1057 |
} |
1058 |
printf("husb: open device %d.%d\n", bus_num, addr);
|
1059 |
|
1060 |
if (!usb_host_device_path) {
|
1061 |
perror("husb: USB Host Device Path not set");
|
1062 |
goto fail;
|
1063 |
} |
1064 |
snprintf(buf, sizeof(buf), "%s/%03d/%03d", usb_host_device_path, |
1065 |
bus_num, addr); |
1066 |
fd = open(buf, O_RDWR | O_NONBLOCK); |
1067 |
if (fd < 0) { |
1068 |
perror(buf); |
1069 |
goto fail;
|
1070 |
} |
1071 |
DPRINTF("husb: opened %s\n", buf);
|
1072 |
|
1073 |
dev->bus_num = bus_num; |
1074 |
dev->addr = addr; |
1075 |
strcpy(dev->port, port); |
1076 |
dev->fd = fd; |
1077 |
|
1078 |
/* read the device description */
|
1079 |
dev->descr_len = read(fd, dev->descr, sizeof(dev->descr));
|
1080 |
if (dev->descr_len <= 0) { |
1081 |
perror("husb: reading device data failed");
|
1082 |
goto fail;
|
1083 |
} |
1084 |
|
1085 |
#ifdef DEBUG
|
1086 |
{ |
1087 |
int x;
|
1088 |
printf("=== begin dumping device descriptor data ===\n");
|
1089 |
for (x = 0; x < dev->descr_len; x++) { |
1090 |
printf("%02x ", dev->descr[x]);
|
1091 |
} |
1092 |
printf("\n=== end dumping device descriptor data ===\n");
|
1093 |
} |
1094 |
#endif
|
1095 |
|
1096 |
|
1097 |
/*
|
1098 |
* Initial configuration is -1 which makes us claim first
|
1099 |
* available config. We used to start with 1, which does not
|
1100 |
* always work. I've seen devices where first config starts
|
1101 |
* with 2.
|
1102 |
*/
|
1103 |
if (!usb_host_claim_interfaces(dev, -1)) { |
1104 |
goto fail;
|
1105 |
} |
1106 |
|
1107 |
ret = ioctl(fd, USBDEVFS_CONNECTINFO, &ci); |
1108 |
if (ret < 0) { |
1109 |
perror("usb_host_device_open: USBDEVFS_CONNECTINFO");
|
1110 |
goto fail;
|
1111 |
} |
1112 |
|
1113 |
printf("husb: grabbed usb device %d.%d\n", bus_num, addr);
|
1114 |
|
1115 |
ret = usb_linux_update_endp_table(dev); |
1116 |
if (ret) {
|
1117 |
goto fail;
|
1118 |
} |
1119 |
|
1120 |
if (ci.slow) {
|
1121 |
dev->dev.speed = USB_SPEED_LOW; |
1122 |
} else {
|
1123 |
dev->dev.speed = USB_SPEED_HIGH; |
1124 |
} |
1125 |
|
1126 |
if (!prod_name || prod_name[0] == '\0') { |
1127 |
snprintf(dev->dev.product_desc, sizeof(dev->dev.product_desc),
|
1128 |
"host:%d.%d", bus_num, addr);
|
1129 |
} else {
|
1130 |
pstrcpy(dev->dev.product_desc, sizeof(dev->dev.product_desc),
|
1131 |
prod_name); |
1132 |
} |
1133 |
|
1134 |
/* USB devio uses 'write' flag to check for async completions */
|
1135 |
qemu_set_fd_handler(dev->fd, NULL, async_complete, dev);
|
1136 |
|
1137 |
usb_device_attach(&dev->dev); |
1138 |
return 0; |
1139 |
|
1140 |
fail:
|
1141 |
dev->fd = -1;
|
1142 |
if (fd != -1) { |
1143 |
close(fd); |
1144 |
} |
1145 |
return -1; |
1146 |
} |
1147 |
|
1148 |
static int usb_host_close(USBHostDevice *dev) |
1149 |
{ |
1150 |
int i;
|
1151 |
|
1152 |
if (dev->fd == -1) { |
1153 |
return -1; |
1154 |
} |
1155 |
|
1156 |
qemu_set_fd_handler(dev->fd, NULL, NULL, NULL); |
1157 |
dev->closing = 1;
|
1158 |
for (i = 1; i <= MAX_ENDPOINTS; i++) { |
1159 |
if (is_isoc(dev, i)) {
|
1160 |
usb_host_stop_n_free_iso(dev, i); |
1161 |
} |
1162 |
} |
1163 |
async_complete(dev); |
1164 |
dev->closing = 0;
|
1165 |
usb_device_detach(&dev->dev); |
1166 |
ioctl(dev->fd, USBDEVFS_RESET); |
1167 |
close(dev->fd); |
1168 |
dev->fd = -1;
|
1169 |
return 0; |
1170 |
} |
1171 |
|
1172 |
static void usb_host_exit_notifier(struct Notifier* n) |
1173 |
{ |
1174 |
USBHostDevice *s = container_of(n, USBHostDevice, exit); |
1175 |
|
1176 |
if (s->fd != -1) { |
1177 |
ioctl(s->fd, USBDEVFS_RESET); |
1178 |
} |
1179 |
} |
1180 |
|
1181 |
static int usb_host_initfn(USBDevice *dev) |
1182 |
{ |
1183 |
USBHostDevice *s = DO_UPCAST(USBHostDevice, dev, dev); |
1184 |
|
1185 |
dev->auto_attach = 0;
|
1186 |
s->fd = -1;
|
1187 |
QTAILQ_INSERT_TAIL(&hostdevs, s, next); |
1188 |
s->exit.notify = usb_host_exit_notifier; |
1189 |
qemu_add_exit_notifier(&s->exit); |
1190 |
usb_host_auto_check(NULL);
|
1191 |
return 0; |
1192 |
} |
1193 |
|
1194 |
static struct USBDeviceInfo usb_host_dev_info = { |
1195 |
.product_desc = "USB Host Device",
|
1196 |
.qdev.name = "usb-host",
|
1197 |
.qdev.size = sizeof(USBHostDevice),
|
1198 |
.init = usb_host_initfn, |
1199 |
.handle_packet = usb_generic_handle_packet, |
1200 |
.handle_data = usb_host_handle_data, |
1201 |
.handle_control = usb_host_handle_control, |
1202 |
.handle_reset = usb_host_handle_reset, |
1203 |
.handle_destroy = usb_host_handle_destroy, |
1204 |
.usbdevice_name = "host",
|
1205 |
.usbdevice_init = usb_host_device_open, |
1206 |
.qdev.props = (Property[]) { |
1207 |
DEFINE_PROP_UINT32("hostbus", USBHostDevice, match.bus_num, 0), |
1208 |
DEFINE_PROP_UINT32("hostaddr", USBHostDevice, match.addr, 0), |
1209 |
DEFINE_PROP_STRING("hostport", USBHostDevice, match.port),
|
1210 |
DEFINE_PROP_HEX32("vendorid", USBHostDevice, match.vendor_id, 0), |
1211 |
DEFINE_PROP_HEX32("productid", USBHostDevice, match.product_id, 0), |
1212 |
DEFINE_PROP_END_OF_LIST(), |
1213 |
}, |
1214 |
}; |
1215 |
|
1216 |
static void usb_host_register_devices(void) |
1217 |
{ |
1218 |
usb_qdev_register(&usb_host_dev_info); |
1219 |
} |
1220 |
device_init(usb_host_register_devices) |
1221 |
|
1222 |
USBDevice *usb_host_device_open(const char *devname) |
1223 |
{ |
1224 |
struct USBAutoFilter filter;
|
1225 |
USBDevice *dev; |
1226 |
char *p;
|
1227 |
|
1228 |
dev = usb_create(NULL /* FIXME */, "usb-host"); |
1229 |
|
1230 |
if (strstr(devname, "auto:")) { |
1231 |
if (parse_filter(devname, &filter) < 0) { |
1232 |
goto fail;
|
1233 |
} |
1234 |
} else {
|
1235 |
if ((p = strchr(devname, '.'))) { |
1236 |
filter.bus_num = strtoul(devname, NULL, 0); |
1237 |
filter.addr = strtoul(p + 1, NULL, 0); |
1238 |
filter.vendor_id = 0;
|
1239 |
filter.product_id = 0;
|
1240 |
} else if ((p = strchr(devname, ':'))) { |
1241 |
filter.bus_num = 0;
|
1242 |
filter.addr = 0;
|
1243 |
filter.vendor_id = strtoul(devname, NULL, 16); |
1244 |
filter.product_id = strtoul(p + 1, NULL, 16); |
1245 |
} else {
|
1246 |
goto fail;
|
1247 |
} |
1248 |
} |
1249 |
|
1250 |
qdev_prop_set_uint32(&dev->qdev, "hostbus", filter.bus_num);
|
1251 |
qdev_prop_set_uint32(&dev->qdev, "hostaddr", filter.addr);
|
1252 |
qdev_prop_set_uint32(&dev->qdev, "vendorid", filter.vendor_id);
|
1253 |
qdev_prop_set_uint32(&dev->qdev, "productid", filter.product_id);
|
1254 |
qdev_init_nofail(&dev->qdev); |
1255 |
return dev;
|
1256 |
|
1257 |
fail:
|
1258 |
qdev_free(&dev->qdev); |
1259 |
return NULL; |
1260 |
} |
1261 |
|
1262 |
int usb_host_device_close(const char *devname) |
1263 |
{ |
1264 |
#if 0
|
1265 |
char product_name[PRODUCT_NAME_SZ];
|
1266 |
int bus_num, addr;
|
1267 |
USBHostDevice *s;
|
1268 |
|
1269 |
if (strstr(devname, "auto:")) {
|
1270 |
return usb_host_auto_del(devname);
|
1271 |
}
|
1272 |
if (usb_host_find_device(&bus_num, &addr, product_name,
|
1273 |
sizeof(product_name), devname) < 0) {
|
1274 |
return -1;
|
1275 |
}
|
1276 |
s = hostdev_find(bus_num, addr);
|
1277 |
if (s) {
|
1278 |
usb_device_delete_addr(s->bus_num, s->dev.addr);
|
1279 |
return 0;
|
1280 |
}
|
1281 |
#endif
|
1282 |
|
1283 |
return -1; |
1284 |
} |
1285 |
|
1286 |
static int get_tag_value(char *buf, int buf_size, |
1287 |
const char *str, const char *tag, |
1288 |
const char *stopchars) |
1289 |
{ |
1290 |
const char *p; |
1291 |
char *q;
|
1292 |
p = strstr(str, tag); |
1293 |
if (!p) {
|
1294 |
return -1; |
1295 |
} |
1296 |
p += strlen(tag); |
1297 |
while (qemu_isspace(*p)) {
|
1298 |
p++; |
1299 |
} |
1300 |
q = buf; |
1301 |
while (*p != '\0' && !strchr(stopchars, *p)) { |
1302 |
if ((q - buf) < (buf_size - 1)) { |
1303 |
*q++ = *p; |
1304 |
} |
1305 |
p++; |
1306 |
} |
1307 |
*q = '\0';
|
1308 |
return q - buf;
|
1309 |
} |
1310 |
|
1311 |
/*
|
1312 |
* Use /proc/bus/usb/devices or /dev/bus/usb/devices file to determine
|
1313 |
* host's USB devices. This is legacy support since many distributions
|
1314 |
* are moving to /sys/bus/usb
|
1315 |
*/
|
1316 |
static int usb_host_scan_dev(void *opaque, USBScanFunc *func) |
1317 |
{ |
1318 |
FILE *f = NULL;
|
1319 |
char line[1024]; |
1320 |
char buf[1024]; |
1321 |
int bus_num, addr, speed, device_count, class_id, product_id, vendor_id;
|
1322 |
char product_name[512]; |
1323 |
int ret = 0; |
1324 |
|
1325 |
if (!usb_host_device_path) {
|
1326 |
perror("husb: USB Host Device Path not set");
|
1327 |
goto the_end;
|
1328 |
} |
1329 |
snprintf(line, sizeof(line), "%s/devices", usb_host_device_path); |
1330 |
f = fopen(line, "r");
|
1331 |
if (!f) {
|
1332 |
perror("husb: cannot open devices file");
|
1333 |
goto the_end;
|
1334 |
} |
1335 |
|
1336 |
device_count = 0;
|
1337 |
bus_num = addr = speed = class_id = product_id = vendor_id = 0;
|
1338 |
for(;;) {
|
1339 |
if (fgets(line, sizeof(line), f) == NULL) { |
1340 |
break;
|
1341 |
} |
1342 |
if (strlen(line) > 0) { |
1343 |
line[strlen(line) - 1] = '\0'; |
1344 |
} |
1345 |
if (line[0] == 'T' && line[1] == ':') { |
1346 |
if (device_count && (vendor_id || product_id)) {
|
1347 |
/* New device. Add the previously discovered device. */
|
1348 |
ret = func(opaque, bus_num, addr, 0, class_id, vendor_id,
|
1349 |
product_id, product_name, speed); |
1350 |
if (ret) {
|
1351 |
goto the_end;
|
1352 |
} |
1353 |
} |
1354 |
if (get_tag_value(buf, sizeof(buf), line, "Bus=", " ") < 0) { |
1355 |
goto fail;
|
1356 |
} |
1357 |
bus_num = atoi(buf); |
1358 |
if (get_tag_value(buf, sizeof(buf), line, "Dev#=", " ") < 0) { |
1359 |
goto fail;
|
1360 |
} |
1361 |
addr = atoi(buf); |
1362 |
if (get_tag_value(buf, sizeof(buf), line, "Spd=", " ") < 0) { |
1363 |
goto fail;
|
1364 |
} |
1365 |
if (!strcmp(buf, "480")) { |
1366 |
speed = USB_SPEED_HIGH; |
1367 |
} else if (!strcmp(buf, "1.5")) { |
1368 |
speed = USB_SPEED_LOW; |
1369 |
} else {
|
1370 |
speed = USB_SPEED_FULL; |
1371 |
} |
1372 |
product_name[0] = '\0'; |
1373 |
class_id = 0xff;
|
1374 |
device_count++; |
1375 |
product_id = 0;
|
1376 |
vendor_id = 0;
|
1377 |
} else if (line[0] == 'P' && line[1] == ':') { |
1378 |
if (get_tag_value(buf, sizeof(buf), line, "Vendor=", " ") < 0) { |
1379 |
goto fail;
|
1380 |
} |
1381 |
vendor_id = strtoul(buf, NULL, 16); |
1382 |
if (get_tag_value(buf, sizeof(buf), line, "ProdID=", " ") < 0) { |
1383 |
goto fail;
|
1384 |
} |
1385 |
product_id = strtoul(buf, NULL, 16); |
1386 |
} else if (line[0] == 'S' && line[1] == ':') { |
1387 |
if (get_tag_value(buf, sizeof(buf), line, "Product=", "") < 0) { |
1388 |
goto fail;
|
1389 |
} |
1390 |
pstrcpy(product_name, sizeof(product_name), buf);
|
1391 |
} else if (line[0] == 'D' && line[1] == ':') { |
1392 |
if (get_tag_value(buf, sizeof(buf), line, "Cls=", " (") < 0) { |
1393 |
goto fail;
|
1394 |
} |
1395 |
class_id = strtoul(buf, NULL, 16); |
1396 |
} |
1397 |
fail: ;
|
1398 |
} |
1399 |
if (device_count && (vendor_id || product_id)) {
|
1400 |
/* Add the last device. */
|
1401 |
ret = func(opaque, bus_num, addr, 0, class_id, vendor_id,
|
1402 |
product_id, product_name, speed); |
1403 |
} |
1404 |
the_end:
|
1405 |
if (f) {
|
1406 |
fclose(f); |
1407 |
} |
1408 |
return ret;
|
1409 |
} |
1410 |
|
1411 |
/*
|
1412 |
* Read sys file-system device file
|
1413 |
*
|
1414 |
* @line address of buffer to put file contents in
|
1415 |
* @line_size size of line
|
1416 |
* @device_file path to device file (printf format string)
|
1417 |
* @device_name device being opened (inserted into device_file)
|
1418 |
*
|
1419 |
* @return 0 failed, 1 succeeded ('line' contains data)
|
1420 |
*/
|
1421 |
static int usb_host_read_file(char *line, size_t line_size, |
1422 |
const char *device_file, const char *device_name) |
1423 |
{ |
1424 |
FILE *f; |
1425 |
int ret = 0; |
1426 |
char filename[PATH_MAX];
|
1427 |
|
1428 |
snprintf(filename, PATH_MAX, USBSYSBUS_PATH "/devices/%s/%s", device_name,
|
1429 |
device_file); |
1430 |
f = fopen(filename, "r");
|
1431 |
if (f) {
|
1432 |
ret = fgets(line, line_size, f) != NULL;
|
1433 |
fclose(f); |
1434 |
} |
1435 |
|
1436 |
return ret;
|
1437 |
} |
1438 |
|
1439 |
/*
|
1440 |
* Use /sys/bus/usb/devices/ directory to determine host's USB
|
1441 |
* devices.
|
1442 |
*
|
1443 |
* This code is based on Robert Schiele's original patches posted to
|
1444 |
* the Novell bug-tracker https://bugzilla.novell.com/show_bug.cgi?id=241950
|
1445 |
*/
|
1446 |
static int usb_host_scan_sys(void *opaque, USBScanFunc *func) |
1447 |
{ |
1448 |
DIR *dir = NULL;
|
1449 |
char line[1024]; |
1450 |
int bus_num, addr, speed, class_id, product_id, vendor_id;
|
1451 |
int ret = 0; |
1452 |
char port[MAX_PORTLEN];
|
1453 |
char product_name[512]; |
1454 |
struct dirent *de;
|
1455 |
|
1456 |
dir = opendir(USBSYSBUS_PATH "/devices");
|
1457 |
if (!dir) {
|
1458 |
perror("husb: cannot open devices directory");
|
1459 |
goto the_end;
|
1460 |
} |
1461 |
|
1462 |
while ((de = readdir(dir))) {
|
1463 |
if (de->d_name[0] != '.' && !strchr(de->d_name, ':')) { |
1464 |
if (sscanf(de->d_name, "%d-%7[0-9.]", &bus_num, port) < 2) { |
1465 |
continue;
|
1466 |
} |
1467 |
|
1468 |
if (!usb_host_read_file(line, sizeof(line), "devnum", de->d_name)) { |
1469 |
goto the_end;
|
1470 |
} |
1471 |
if (sscanf(line, "%d", &addr) != 1) { |
1472 |
goto the_end;
|
1473 |
} |
1474 |
if (!usb_host_read_file(line, sizeof(line), "bDeviceClass", |
1475 |
de->d_name)) { |
1476 |
goto the_end;
|
1477 |
} |
1478 |
if (sscanf(line, "%x", &class_id) != 1) { |
1479 |
goto the_end;
|
1480 |
} |
1481 |
|
1482 |
if (!usb_host_read_file(line, sizeof(line), "idVendor", |
1483 |
de->d_name)) { |
1484 |
goto the_end;
|
1485 |
} |
1486 |
if (sscanf(line, "%x", &vendor_id) != 1) { |
1487 |
goto the_end;
|
1488 |
} |
1489 |
if (!usb_host_read_file(line, sizeof(line), "idProduct", |
1490 |
de->d_name)) { |
1491 |
goto the_end;
|
1492 |
} |
1493 |
if (sscanf(line, "%x", &product_id) != 1) { |
1494 |
goto the_end;
|
1495 |
} |
1496 |
if (!usb_host_read_file(line, sizeof(line), "product", |
1497 |
de->d_name)) { |
1498 |
*product_name = 0;
|
1499 |
} else {
|
1500 |
if (strlen(line) > 0) { |
1501 |
line[strlen(line) - 1] = '\0'; |
1502 |
} |
1503 |
pstrcpy(product_name, sizeof(product_name), line);
|
1504 |
} |
1505 |
|
1506 |
if (!usb_host_read_file(line, sizeof(line), "speed", de->d_name)) { |
1507 |
goto the_end;
|
1508 |
} |
1509 |
if (!strcmp(line, "480\n")) { |
1510 |
speed = USB_SPEED_HIGH; |
1511 |
} else if (!strcmp(line, "1.5\n")) { |
1512 |
speed = USB_SPEED_LOW; |
1513 |
} else {
|
1514 |
speed = USB_SPEED_FULL; |
1515 |
} |
1516 |
|
1517 |
ret = func(opaque, bus_num, addr, port, class_id, vendor_id, |
1518 |
product_id, product_name, speed); |
1519 |
if (ret) {
|
1520 |
goto the_end;
|
1521 |
} |
1522 |
} |
1523 |
} |
1524 |
the_end:
|
1525 |
if (dir) {
|
1526 |
closedir(dir); |
1527 |
} |
1528 |
return ret;
|
1529 |
} |
1530 |
|
1531 |
/*
|
1532 |
* Determine how to access the host's USB devices and call the
|
1533 |
* specific support function.
|
1534 |
*/
|
1535 |
static int usb_host_scan(void *opaque, USBScanFunc *func) |
1536 |
{ |
1537 |
Monitor *mon = cur_mon; |
1538 |
FILE *f = NULL;
|
1539 |
DIR *dir = NULL;
|
1540 |
int ret = 0; |
1541 |
const char *fs_type[] = {"unknown", "proc", "dev", "sys"}; |
1542 |
char devpath[PATH_MAX];
|
1543 |
|
1544 |
/* only check the host once */
|
1545 |
if (!usb_fs_type) {
|
1546 |
dir = opendir(USBSYSBUS_PATH "/devices");
|
1547 |
if (dir) {
|
1548 |
/* devices found in /dev/bus/usb/ (yes - not a mistake!) */
|
1549 |
strcpy(devpath, USBDEVBUS_PATH); |
1550 |
usb_fs_type = USB_FS_SYS; |
1551 |
closedir(dir); |
1552 |
DPRINTF(USBDBG_DEVOPENED, USBSYSBUS_PATH); |
1553 |
goto found_devices;
|
1554 |
} |
1555 |
f = fopen(USBPROCBUS_PATH "/devices", "r"); |
1556 |
if (f) {
|
1557 |
/* devices found in /proc/bus/usb/ */
|
1558 |
strcpy(devpath, USBPROCBUS_PATH); |
1559 |
usb_fs_type = USB_FS_PROC; |
1560 |
fclose(f); |
1561 |
DPRINTF(USBDBG_DEVOPENED, USBPROCBUS_PATH); |
1562 |
goto found_devices;
|
1563 |
} |
1564 |
/* try additional methods if an access method hasn't been found yet */
|
1565 |
f = fopen(USBDEVBUS_PATH "/devices", "r"); |
1566 |
if (f) {
|
1567 |
/* devices found in /dev/bus/usb/ */
|
1568 |
strcpy(devpath, USBDEVBUS_PATH); |
1569 |
usb_fs_type = USB_FS_DEV; |
1570 |
fclose(f); |
1571 |
DPRINTF(USBDBG_DEVOPENED, USBDEVBUS_PATH); |
1572 |
goto found_devices;
|
1573 |
} |
1574 |
found_devices:
|
1575 |
if (!usb_fs_type) {
|
1576 |
if (mon) {
|
1577 |
monitor_printf(mon, "husb: unable to access USB devices\n");
|
1578 |
} |
1579 |
return -ENOENT;
|
1580 |
} |
1581 |
|
1582 |
/* the module setting (used later for opening devices) */
|
1583 |
usb_host_device_path = qemu_mallocz(strlen(devpath)+1);
|
1584 |
strcpy(usb_host_device_path, devpath); |
1585 |
if (mon) {
|
1586 |
monitor_printf(mon, "husb: using %s file-system with %s\n",
|
1587 |
fs_type[usb_fs_type], usb_host_device_path); |
1588 |
} |
1589 |
} |
1590 |
|
1591 |
switch (usb_fs_type) {
|
1592 |
case USB_FS_PROC:
|
1593 |
case USB_FS_DEV:
|
1594 |
ret = usb_host_scan_dev(opaque, func); |
1595 |
break;
|
1596 |
case USB_FS_SYS:
|
1597 |
ret = usb_host_scan_sys(opaque, func); |
1598 |
break;
|
1599 |
default:
|
1600 |
ret = -EINVAL; |
1601 |
break;
|
1602 |
} |
1603 |
return ret;
|
1604 |
} |
1605 |
|
1606 |
static QEMUTimer *usb_auto_timer;
|
1607 |
|
1608 |
static int usb_host_auto_scan(void *opaque, int bus_num, int addr, char *port, |
1609 |
int class_id, int vendor_id, int product_id, |
1610 |
const char *product_name, int speed) |
1611 |
{ |
1612 |
struct USBAutoFilter *f;
|
1613 |
struct USBHostDevice *s;
|
1614 |
|
1615 |
/* Ignore hubs */
|
1616 |
if (class_id == 9) |
1617 |
return 0; |
1618 |
|
1619 |
QTAILQ_FOREACH(s, &hostdevs, next) { |
1620 |
f = &s->match; |
1621 |
|
1622 |
if (f->bus_num > 0 && f->bus_num != bus_num) { |
1623 |
continue;
|
1624 |
} |
1625 |
if (f->addr > 0 && f->addr != addr) { |
1626 |
continue;
|
1627 |
} |
1628 |
if (f->port != NULL && (port == NULL || strcmp(f->port, port) != 0)) { |
1629 |
continue;
|
1630 |
} |
1631 |
|
1632 |
if (f->vendor_id > 0 && f->vendor_id != vendor_id) { |
1633 |
continue;
|
1634 |
} |
1635 |
|
1636 |
if (f->product_id > 0 && f->product_id != product_id) { |
1637 |
continue;
|
1638 |
} |
1639 |
/* We got a match */
|
1640 |
|
1641 |
/* Already attached ? */
|
1642 |
if (s->fd != -1) { |
1643 |
return 0; |
1644 |
} |
1645 |
DPRINTF("husb: auto open: bus_num %d addr %d\n", bus_num, addr);
|
1646 |
|
1647 |
usb_host_open(s, bus_num, addr, port, product_name); |
1648 |
} |
1649 |
|
1650 |
return 0; |
1651 |
} |
1652 |
|
1653 |
static void usb_host_auto_check(void *unused) |
1654 |
{ |
1655 |
struct USBHostDevice *s;
|
1656 |
int unconnected = 0; |
1657 |
|
1658 |
usb_host_scan(NULL, usb_host_auto_scan);
|
1659 |
|
1660 |
QTAILQ_FOREACH(s, &hostdevs, next) { |
1661 |
if (s->fd == -1) { |
1662 |
unconnected++; |
1663 |
} |
1664 |
} |
1665 |
|
1666 |
if (unconnected == 0) { |
1667 |
/* nothing to watch */
|
1668 |
if (usb_auto_timer) {
|
1669 |
qemu_del_timer(usb_auto_timer); |
1670 |
} |
1671 |
return;
|
1672 |
} |
1673 |
|
1674 |
if (!usb_auto_timer) {
|
1675 |
usb_auto_timer = qemu_new_timer_ms(rt_clock, usb_host_auto_check, NULL);
|
1676 |
if (!usb_auto_timer) {
|
1677 |
return;
|
1678 |
} |
1679 |
} |
1680 |
qemu_mod_timer(usb_auto_timer, qemu_get_clock_ms(rt_clock) + 2000);
|
1681 |
} |
1682 |
|
1683 |
/*
|
1684 |
* Autoconnect filter
|
1685 |
* Format:
|
1686 |
* auto:bus:dev[:vid:pid]
|
1687 |
* auto:bus.dev[:vid:pid]
|
1688 |
*
|
1689 |
* bus - bus number (dec, * means any)
|
1690 |
* dev - device number (dec, * means any)
|
1691 |
* vid - vendor id (hex, * means any)
|
1692 |
* pid - product id (hex, * means any)
|
1693 |
*
|
1694 |
* See 'lsusb' output.
|
1695 |
*/
|
1696 |
static int parse_filter(const char *spec, struct USBAutoFilter *f) |
1697 |
{ |
1698 |
enum { BUS, DEV, VID, PID, DONE };
|
1699 |
const char *p = spec; |
1700 |
int i;
|
1701 |
|
1702 |
f->bus_num = 0;
|
1703 |
f->addr = 0;
|
1704 |
f->vendor_id = 0;
|
1705 |
f->product_id = 0;
|
1706 |
|
1707 |
for (i = BUS; i < DONE; i++) {
|
1708 |
p = strpbrk(p, ":.");
|
1709 |
if (!p) {
|
1710 |
break;
|
1711 |
} |
1712 |
p++; |
1713 |
|
1714 |
if (*p == '*') { |
1715 |
continue;
|
1716 |
} |
1717 |
switch(i) {
|
1718 |
case BUS: f->bus_num = strtol(p, NULL, 10); break; |
1719 |
case DEV: f->addr = strtol(p, NULL, 10); break; |
1720 |
case VID: f->vendor_id = strtol(p, NULL, 16); break; |
1721 |
case PID: f->product_id = strtol(p, NULL, 16); break; |
1722 |
} |
1723 |
} |
1724 |
|
1725 |
if (i < DEV) {
|
1726 |
fprintf(stderr, "husb: invalid auto filter spec %s\n", spec);
|
1727 |
return -1; |
1728 |
} |
1729 |
|
1730 |
return 0; |
1731 |
} |
1732 |
|
1733 |
/**********************/
|
1734 |
/* USB host device info */
|
1735 |
|
1736 |
struct usb_class_info {
|
1737 |
int class;
|
1738 |
const char *class_name; |
1739 |
}; |
1740 |
|
1741 |
static const struct usb_class_info usb_class_info[] = { |
1742 |
{ USB_CLASS_AUDIO, "Audio"},
|
1743 |
{ USB_CLASS_COMM, "Communication"},
|
1744 |
{ USB_CLASS_HID, "HID"},
|
1745 |
{ USB_CLASS_HUB, "Hub" },
|
1746 |
{ USB_CLASS_PHYSICAL, "Physical" },
|
1747 |
{ USB_CLASS_PRINTER, "Printer" },
|
1748 |
{ USB_CLASS_MASS_STORAGE, "Storage" },
|
1749 |
{ USB_CLASS_CDC_DATA, "Data" },
|
1750 |
{ USB_CLASS_APP_SPEC, "Application Specific" },
|
1751 |
{ USB_CLASS_VENDOR_SPEC, "Vendor Specific" },
|
1752 |
{ USB_CLASS_STILL_IMAGE, "Still Image" },
|
1753 |
{ USB_CLASS_CSCID, "Smart Card" },
|
1754 |
{ USB_CLASS_CONTENT_SEC, "Content Security" },
|
1755 |
{ -1, NULL } |
1756 |
}; |
1757 |
|
1758 |
static const char *usb_class_str(uint8_t class) |
1759 |
{ |
1760 |
const struct usb_class_info *p; |
1761 |
for(p = usb_class_info; p->class != -1; p++) { |
1762 |
if (p->class == class) {
|
1763 |
break;
|
1764 |
} |
1765 |
} |
1766 |
return p->class_name;
|
1767 |
} |
1768 |
|
1769 |
static void usb_info_device(Monitor *mon, int bus_num, int addr, char *port, |
1770 |
int class_id, int vendor_id, int product_id, |
1771 |
const char *product_name, |
1772 |
int speed)
|
1773 |
{ |
1774 |
const char *class_str, *speed_str; |
1775 |
|
1776 |
switch(speed) {
|
1777 |
case USB_SPEED_LOW:
|
1778 |
speed_str = "1.5";
|
1779 |
break;
|
1780 |
case USB_SPEED_FULL:
|
1781 |
speed_str = "12";
|
1782 |
break;
|
1783 |
case USB_SPEED_HIGH:
|
1784 |
speed_str = "480";
|
1785 |
break;
|
1786 |
default:
|
1787 |
speed_str = "?";
|
1788 |
break;
|
1789 |
} |
1790 |
|
1791 |
monitor_printf(mon, " Bus %d, Addr %d, Port %s, Speed %s Mb/s\n",
|
1792 |
bus_num, addr, port, speed_str); |
1793 |
class_str = usb_class_str(class_id); |
1794 |
if (class_str) {
|
1795 |
monitor_printf(mon, " %s:", class_str);
|
1796 |
} else {
|
1797 |
monitor_printf(mon, " Class %02x:", class_id);
|
1798 |
} |
1799 |
monitor_printf(mon, " USB device %04x:%04x", vendor_id, product_id);
|
1800 |
if (product_name[0] != '\0') { |
1801 |
monitor_printf(mon, ", %s", product_name);
|
1802 |
} |
1803 |
monitor_printf(mon, "\n");
|
1804 |
} |
1805 |
|
1806 |
static int usb_host_info_device(void *opaque, int bus_num, int addr, |
1807 |
char *path, int class_id, |
1808 |
int vendor_id, int product_id, |
1809 |
const char *product_name, |
1810 |
int speed)
|
1811 |
{ |
1812 |
Monitor *mon = opaque; |
1813 |
|
1814 |
usb_info_device(mon, bus_num, addr, path, class_id, vendor_id, product_id, |
1815 |
product_name, speed); |
1816 |
return 0; |
1817 |
} |
1818 |
|
1819 |
static void dec2str(int val, char *str, size_t size) |
1820 |
{ |
1821 |
if (val == 0) { |
1822 |
snprintf(str, size, "*");
|
1823 |
} else {
|
1824 |
snprintf(str, size, "%d", val);
|
1825 |
} |
1826 |
} |
1827 |
|
1828 |
static void hex2str(int val, char *str, size_t size) |
1829 |
{ |
1830 |
if (val == 0) { |
1831 |
snprintf(str, size, "*");
|
1832 |
} else {
|
1833 |
snprintf(str, size, "%04x", val);
|
1834 |
} |
1835 |
} |
1836 |
|
1837 |
void usb_host_info(Monitor *mon)
|
1838 |
{ |
1839 |
struct USBAutoFilter *f;
|
1840 |
struct USBHostDevice *s;
|
1841 |
|
1842 |
usb_host_scan(mon, usb_host_info_device); |
1843 |
|
1844 |
if (QTAILQ_EMPTY(&hostdevs)) {
|
1845 |
return;
|
1846 |
} |
1847 |
|
1848 |
monitor_printf(mon, " Auto filters:\n");
|
1849 |
QTAILQ_FOREACH(s, &hostdevs, next) { |
1850 |
char bus[10], addr[10], vid[10], pid[10]; |
1851 |
f = &s->match; |
1852 |
dec2str(f->bus_num, bus, sizeof(bus));
|
1853 |
dec2str(f->addr, addr, sizeof(addr));
|
1854 |
hex2str(f->vendor_id, vid, sizeof(vid));
|
1855 |
hex2str(f->product_id, pid, sizeof(pid));
|
1856 |
monitor_printf(mon, " Bus %s, Addr %s, Port %s, ID %s:%s\n",
|
1857 |
bus, addr, f->port ? f->port : "*", vid, pid);
|
1858 |
} |
1859 |
} |