1 /* $FreeBSD: releng/10.2/sys/dev/usb/usb_generic.c 277845 2015-01-28 19:41:31Z hselasky $ */
2 /*-
3 * Copyright (c) 2008 Hans Petter Selasky. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26
27 #ifdef USB_GLOBAL_INCLUDE_FILE
28 #include USB_GLOBAL_INCLUDE_FILE
29 #else
30 #include <sys/stdint.h>
31 #include <sys/stddef.h>
32 #include <sys/param.h>
33 #include <sys/queue.h>
34 #include <sys/types.h>
35 #include <sys/systm.h>
36 #include <sys/kernel.h>
37 #include <sys/bus.h>
38 #include <sys/module.h>
39 #include <sys/lock.h>
40 #include <sys/mutex.h>
41 #include <sys/condvar.h>
42 #include <sys/sysctl.h>
43 #include <sys/sx.h>
44 #include <sys/unistd.h>
45 #include <sys/callout.h>
46 #include <sys/malloc.h>
47 #include <sys/priv.h>
48 #include <sys/conf.h>
49 #include <sys/fcntl.h>
50
51 #include <dev/usb/usb.h>
52 #include <dev/usb/usb_ioctl.h>
53 #include <dev/usb/usbdi.h>
54 #include <dev/usb/usbdi_util.h>
55
56 #define USB_DEBUG_VAR ugen_debug
57
58 #include <dev/usb/usb_core.h>
59 #include <dev/usb/usb_dev.h>
60 #include <dev/usb/usb_mbuf.h>
61 #include <dev/usb/usb_process.h>
62 #include <dev/usb/usb_device.h>
63 #include <dev/usb/usb_debug.h>
64 #include <dev/usb/usb_request.h>
65 #include <dev/usb/usb_busdma.h>
66 #include <dev/usb/usb_util.h>
67 #include <dev/usb/usb_hub.h>
68 #include <dev/usb/usb_generic.h>
69 #include <dev/usb/usb_transfer.h>
70
71 #include <dev/usb/usb_controller.h>
72 #include <dev/usb/usb_bus.h>
73 #endif /* USB_GLOBAL_INCLUDE_FILE */
74
75 #if USB_HAVE_UGEN
76
77 /* defines */
78
79 #define UGEN_BULK_FS_BUFFER_SIZE (64*32) /* bytes */
80 #define UGEN_BULK_HS_BUFFER_SIZE (1024*32) /* bytes */
81 #define UGEN_HW_FRAMES 50 /* number of milliseconds per transfer */
82
83 /* function prototypes */
84
85 static usb_callback_t ugen_read_clear_stall_callback;
86 static usb_callback_t ugen_write_clear_stall_callback;
87 static usb_callback_t ugen_ctrl_read_callback;
88 static usb_callback_t ugen_ctrl_write_callback;
89 static usb_callback_t ugen_isoc_read_callback;
90 static usb_callback_t ugen_isoc_write_callback;
91 static usb_callback_t ugen_ctrl_fs_callback;
92
93 static usb_fifo_open_t ugen_open;
94 static usb_fifo_close_t ugen_close;
95 static usb_fifo_ioctl_t ugen_ioctl;
96 static usb_fifo_ioctl_t ugen_ioctl_post;
97 static usb_fifo_cmd_t ugen_start_read;
98 static usb_fifo_cmd_t ugen_start_write;
99 static usb_fifo_cmd_t ugen_stop_io;
100
101 static int ugen_transfer_setup(struct usb_fifo *,
102 const struct usb_config *, uint8_t);
103 static int ugen_open_pipe_write(struct usb_fifo *);
104 static int ugen_open_pipe_read(struct usb_fifo *);
105 static int ugen_set_config(struct usb_fifo *, uint8_t);
106 static int ugen_set_interface(struct usb_fifo *, uint8_t, uint8_t);
107 static int ugen_get_cdesc(struct usb_fifo *, struct usb_gen_descriptor *);
108 static int ugen_get_sdesc(struct usb_fifo *, struct usb_gen_descriptor *);
109 static int ugen_get_iface_driver(struct usb_fifo *f, struct usb_gen_descriptor *ugd);
110 static int usb_gen_fill_deviceinfo(struct usb_fifo *,
111 struct usb_device_info *);
112 static int ugen_re_enumerate(struct usb_fifo *);
113 static int ugen_iface_ioctl(struct usb_fifo *, u_long, void *, int);
114 static uint8_t ugen_fs_get_complete(struct usb_fifo *, uint8_t *);
115 static int ugen_fs_uninit(struct usb_fifo *f);
116
117 /* structures */
118
119 struct usb_fifo_methods usb_ugen_methods = {
120 .f_open = &ugen_open,
121 .f_close = &ugen_close,
122 .f_ioctl = &ugen_ioctl,
123 .f_ioctl_post = &ugen_ioctl_post,
124 .f_start_read = &ugen_start_read,
125 .f_stop_read = &ugen_stop_io,
126 .f_start_write = &ugen_start_write,
127 .f_stop_write = &ugen_stop_io,
128 };
129
130 #ifdef USB_DEBUG
131 static int ugen_debug = 0;
132
133 static SYSCTL_NODE(_hw_usb, OID_AUTO, ugen, CTLFLAG_RW, 0, "USB generic");
134 SYSCTL_INT(_hw_usb_ugen, OID_AUTO, debug, CTLFLAG_RW | CTLFLAG_TUN, &ugen_debug,
135 0, "Debug level");
136 TUNABLE_INT("hw.usb.ugen.debug", &ugen_debug);
137 #endif
138
139
140 /* prototypes */
141
142 static int
143 ugen_transfer_setup(struct usb_fifo *f,
144 const struct usb_config *setup, uint8_t n_setup)
145 {
146 struct usb_endpoint *ep = usb_fifo_softc(f);
147 struct usb_device *udev = f->udev;
148 uint8_t iface_index = ep->iface_index;
149 int error;
150
151 mtx_unlock(f->priv_mtx);
152
153 /*
154 * "usbd_transfer_setup()" can sleep so one needs to make a wrapper,
155 * exiting the mutex and checking things
156 */
157 error = usbd_transfer_setup(udev, &iface_index, f->xfer,
158 setup, n_setup, f, f->priv_mtx);
159 if (error == 0) {
160
161 if (f->xfer[0]->nframes == 1) {
162 error = usb_fifo_alloc_buffer(f,
163 f->xfer[0]->max_data_length, 2);
164 } else {
165 error = usb_fifo_alloc_buffer(f,
166 f->xfer[0]->max_frame_size,
167 2 * f->xfer[0]->nframes);
168 }
169 if (error) {
170 usbd_transfer_unsetup(f->xfer, n_setup);
171 }
172 }
173 mtx_lock(f->priv_mtx);
174
175 return (error);
176 }
177
178 static int
179 ugen_open(struct usb_fifo *f, int fflags)
180 {
181 struct usb_endpoint *ep = usb_fifo_softc(f);
182 struct usb_endpoint_descriptor *ed = ep->edesc;
183 uint8_t type;
184
185 DPRINTFN(6, "flag=0x%x\n", fflags);
186
187 mtx_lock(f->priv_mtx);
188 switch (usbd_get_speed(f->udev)) {
189 case USB_SPEED_LOW:
190 case USB_SPEED_FULL:
191 f->nframes = UGEN_HW_FRAMES;
192 f->bufsize = UGEN_BULK_FS_BUFFER_SIZE;
193 break;
194 default:
195 f->nframes = UGEN_HW_FRAMES * 8;
196 f->bufsize = UGEN_BULK_HS_BUFFER_SIZE;
197 break;
198 }
199
200 type = ed->bmAttributes & UE_XFERTYPE;
201 if (type == UE_INTERRUPT) {
202 f->bufsize = 0; /* use "wMaxPacketSize" */
203 }
204 f->timeout = USB_NO_TIMEOUT;
205 f->flag_short = 0;
206 f->fifo_zlp = 0;
207 mtx_unlock(f->priv_mtx);
208
209 return (0);
210 }
211
212 static void
213 ugen_close(struct usb_fifo *f, int fflags)
214 {
215 DPRINTFN(6, "flag=0x%x\n", fflags);
216
217 /* cleanup */
218
219 mtx_lock(f->priv_mtx);
220 usbd_transfer_stop(f->xfer[0]);
221 usbd_transfer_stop(f->xfer[1]);
222 mtx_unlock(f->priv_mtx);
223
224 usbd_transfer_unsetup(f->xfer, 2);
225 usb_fifo_free_buffer(f);
226
227 if (ugen_fs_uninit(f)) {
228 /* ignore any errors - we are closing */
229 DPRINTFN(6, "no FIFOs\n");
230 }
231 }
232
233 static int
234 ugen_open_pipe_write(struct usb_fifo *f)
235 {
236 struct usb_config usb_config[2];
237 struct usb_endpoint *ep = usb_fifo_softc(f);
238 struct usb_endpoint_descriptor *ed = ep->edesc;
239
240 mtx_assert(f->priv_mtx, MA_OWNED);
241
242 if (f->xfer[0] || f->xfer[1]) {
243 /* transfers are already opened */
244 return (0);
245 }
246 memset(usb_config, 0, sizeof(usb_config));
247
248 usb_config[1].type = UE_CONTROL;
249 usb_config[1].endpoint = 0;
250 usb_config[1].direction = UE_DIR_ANY;
251 usb_config[1].timeout = 1000; /* 1 second */
252 usb_config[1].interval = 50;/* 50 milliseconds */
253 usb_config[1].bufsize = sizeof(struct usb_device_request);
254 usb_config[1].callback = &ugen_write_clear_stall_callback;
255 usb_config[1].usb_mode = USB_MODE_HOST;
256
257 usb_config[0].type = ed->bmAttributes & UE_XFERTYPE;
258 usb_config[0].endpoint = ed->bEndpointAddress & UE_ADDR;
259 usb_config[0].stream_id = 0; /* XXX support more stream ID's */
260 usb_config[0].direction = UE_DIR_TX;
261 usb_config[0].interval = USB_DEFAULT_INTERVAL;
262 usb_config[0].flags.proxy_buffer = 1;
263 usb_config[0].usb_mode = USB_MODE_DUAL; /* both modes */
264
265 switch (ed->bmAttributes & UE_XFERTYPE) {
266 case UE_INTERRUPT:
267 case UE_BULK:
268 if (f->flag_short) {
269 usb_config[0].flags.force_short_xfer = 1;
270 }
271 usb_config[0].callback = &ugen_ctrl_write_callback;
272 usb_config[0].timeout = f->timeout;
273 usb_config[0].frames = 1;
274 usb_config[0].bufsize = f->bufsize;
275 if (ugen_transfer_setup(f, usb_config, 2)) {
276 return (EIO);
277 }
278 /* first transfer does not clear stall */
279 f->flag_stall = 0;
280 break;
281
282 case UE_ISOCHRONOUS:
283 usb_config[0].flags.short_xfer_ok = 1;
284 usb_config[0].bufsize = 0; /* use default */
285 usb_config[0].frames = f->nframes;
286 usb_config[0].callback = &ugen_isoc_write_callback;
287 usb_config[0].timeout = 0;
288
289 /* clone configuration */
290 usb_config[1] = usb_config[0];
291
292 if (ugen_transfer_setup(f, usb_config, 2)) {
293 return (EIO);
294 }
295 break;
296 default:
297 return (EINVAL);
298 }
299 return (0);
300 }
301
302 static int
303 ugen_open_pipe_read(struct usb_fifo *f)
304 {
305 struct usb_config usb_config[2];
306 struct usb_endpoint *ep = usb_fifo_softc(f);
307 struct usb_endpoint_descriptor *ed = ep->edesc;
308
309 mtx_assert(f->priv_mtx, MA_OWNED);
310
311 if (f->xfer[0] || f->xfer[1]) {
312 /* transfers are already opened */
313 return (0);
314 }
315 memset(usb_config, 0, sizeof(usb_config));
316
317 usb_config[1].type = UE_CONTROL;
318 usb_config[1].endpoint = 0;
319 usb_config[1].direction = UE_DIR_ANY;
320 usb_config[1].timeout = 1000; /* 1 second */
321 usb_config[1].interval = 50;/* 50 milliseconds */
322 usb_config[1].bufsize = sizeof(struct usb_device_request);
323 usb_config[1].callback = &ugen_read_clear_stall_callback;
324 usb_config[1].usb_mode = USB_MODE_HOST;
325
326 usb_config[0].type = ed->bmAttributes & UE_XFERTYPE;
327 usb_config[0].endpoint = ed->bEndpointAddress & UE_ADDR;
328 usb_config[0].stream_id = 0; /* XXX support more stream ID's */
329 usb_config[0].direction = UE_DIR_RX;
330 usb_config[0].interval = USB_DEFAULT_INTERVAL;
331 usb_config[0].flags.proxy_buffer = 1;
332 usb_config[0].usb_mode = USB_MODE_DUAL; /* both modes */
333
334 switch (ed->bmAttributes & UE_XFERTYPE) {
335 case UE_INTERRUPT:
336 case UE_BULK:
337 if (f->flag_short) {
338 usb_config[0].flags.short_xfer_ok = 1;
339 }
340 usb_config[0].timeout = f->timeout;
341 usb_config[0].frames = 1;
342 usb_config[0].callback = &ugen_ctrl_read_callback;
343 usb_config[0].bufsize = f->bufsize;
344
345 if (ugen_transfer_setup(f, usb_config, 2)) {
346 return (EIO);
347 }
348 /* first transfer does not clear stall */
349 f->flag_stall = 0;
350 break;
351
352 case UE_ISOCHRONOUS:
353 usb_config[0].flags.short_xfer_ok = 1;
354 usb_config[0].bufsize = 0; /* use default */
355 usb_config[0].frames = f->nframes;
356 usb_config[0].callback = &ugen_isoc_read_callback;
357 usb_config[0].timeout = 0;
358
359 /* clone configuration */
360 usb_config[1] = usb_config[0];
361
362 if (ugen_transfer_setup(f, usb_config, 2)) {
363 return (EIO);
364 }
365 break;
366
367 default:
368 return (EINVAL);
369 }
370 return (0);
371 }
372
373 static void
374 ugen_start_read(struct usb_fifo *f)
375 {
376 /* check that pipes are open */
377 if (ugen_open_pipe_read(f)) {
378 /* signal error */
379 usb_fifo_put_data_error(f);
380 }
381 /* start transfers */
382 usbd_transfer_start(f->xfer[0]);
383 usbd_transfer_start(f->xfer[1]);
384 }
385
386 static void
387 ugen_start_write(struct usb_fifo *f)
388 {
389 /* check that pipes are open */
390 if (ugen_open_pipe_write(f)) {
391 /* signal error */
392 usb_fifo_get_data_error(f);
393 }
394 /* start transfers */
395 usbd_transfer_start(f->xfer[0]);
396 usbd_transfer_start(f->xfer[1]);
397 }
398
399 static void
400 ugen_stop_io(struct usb_fifo *f)
401 {
402 /* stop transfers */
403 usbd_transfer_stop(f->xfer[0]);
404 usbd_transfer_stop(f->xfer[1]);
405 }
406
407 static void
408 ugen_ctrl_read_callback(struct usb_xfer *xfer, usb_error_t error)
409 {
410 struct usb_fifo *f = usbd_xfer_softc(xfer);
411 struct usb_mbuf *m;
412
413 DPRINTFN(4, "actlen=%u, aframes=%u\n", xfer->actlen, xfer->aframes);
414
415 switch (USB_GET_STATE(xfer)) {
416 case USB_ST_TRANSFERRED:
417 if (xfer->actlen == 0) {
418 if (f->fifo_zlp != 4) {
419 f->fifo_zlp++;
420 } else {
421 /*
422 * Throttle a little bit we have multiple ZLPs
423 * in a row!
424 */
425 xfer->interval = 64; /* ms */
426 }
427 } else {
428 /* clear throttle */
429 xfer->interval = 0;
430 f->fifo_zlp = 0;
431 }
432 usb_fifo_put_data(f, xfer->frbuffers, 0,
433 xfer->actlen, 1);
434
435 case USB_ST_SETUP:
436 if (f->flag_stall) {
437 usbd_transfer_start(f->xfer[1]);
438 break;
439 }
440 USB_IF_POLL(&f->free_q, m);
441 if (m) {
442 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
443 usbd_transfer_submit(xfer);
444 }
445 break;
446
447 default: /* Error */
448 if (xfer->error != USB_ERR_CANCELLED) {
449 /* send a zero length packet to userland */
450 usb_fifo_put_data(f, xfer->frbuffers, 0, 0, 1);
451 f->flag_stall = 1;
452 f->fifo_zlp = 0;
453 usbd_transfer_start(f->xfer[1]);
454 }
455 break;
456 }
457 }
458
459 static void
460 ugen_ctrl_write_callback(struct usb_xfer *xfer, usb_error_t error)
461 {
462 struct usb_fifo *f = usbd_xfer_softc(xfer);
463 usb_frlength_t actlen;
464
465 DPRINTFN(4, "actlen=%u, aframes=%u\n", xfer->actlen, xfer->aframes);
466
467 switch (USB_GET_STATE(xfer)) {
468 case USB_ST_SETUP:
469 case USB_ST_TRANSFERRED:
470 /*
471 * If writing is in stall, just jump to clear stall
472 * callback and solve the situation.
473 */
474 if (f->flag_stall) {
475 usbd_transfer_start(f->xfer[1]);
476 break;
477 }
478 /*
479 * Write data, setup and perform hardware transfer.
480 */
481 if (usb_fifo_get_data(f, xfer->frbuffers, 0,
482 xfer->max_data_length, &actlen, 0)) {
483 usbd_xfer_set_frame_len(xfer, 0, actlen);
484 usbd_transfer_submit(xfer);
485 }
486 break;
487
488 default: /* Error */
489 if (xfer->error != USB_ERR_CANCELLED) {
490 f->flag_stall = 1;
491 usbd_transfer_start(f->xfer[1]);
492 }
493 break;
494 }
495 }
496
497 static void
498 ugen_read_clear_stall_callback(struct usb_xfer *xfer, usb_error_t error)
499 {
500 struct usb_fifo *f = usbd_xfer_softc(xfer);
501 struct usb_xfer *xfer_other = f->xfer[0];
502
503 if (f->flag_stall == 0) {
504 /* nothing to do */
505 return;
506 }
507 if (usbd_clear_stall_callback(xfer, xfer_other)) {
508 DPRINTFN(5, "f=%p: stall cleared\n", f);
509 f->flag_stall = 0;
510 usbd_transfer_start(xfer_other);
511 }
512 }
513
514 static void
515 ugen_write_clear_stall_callback(struct usb_xfer *xfer, usb_error_t error)
516 {
517 struct usb_fifo *f = usbd_xfer_softc(xfer);
518 struct usb_xfer *xfer_other = f->xfer[0];
519
520 if (f->flag_stall == 0) {
521 /* nothing to do */
522 return;
523 }
524 if (usbd_clear_stall_callback(xfer, xfer_other)) {
525 DPRINTFN(5, "f=%p: stall cleared\n", f);
526 f->flag_stall = 0;
527 usbd_transfer_start(xfer_other);
528 }
529 }
530
531 static void
532 ugen_isoc_read_callback(struct usb_xfer *xfer, usb_error_t error)
533 {
534 struct usb_fifo *f = usbd_xfer_softc(xfer);
535 usb_frlength_t offset;
536 usb_frcount_t n;
537
538 DPRINTFN(4, "actlen=%u, aframes=%u\n", xfer->actlen, xfer->aframes);
539
540 switch (USB_GET_STATE(xfer)) {
541 case USB_ST_TRANSFERRED:
542
543 DPRINTFN(6, "actlen=%d\n", xfer->actlen);
544
545 offset = 0;
546
547 for (n = 0; n != xfer->aframes; n++) {
548 usb_fifo_put_data(f, xfer->frbuffers, offset,
549 xfer->frlengths[n], 1);
550 offset += xfer->max_frame_size;
551 }
552
553 case USB_ST_SETUP:
554 tr_setup:
555 for (n = 0; n != xfer->nframes; n++) {
556 /* setup size for next transfer */
557 usbd_xfer_set_frame_len(xfer, n, xfer->max_frame_size);
558 }
559 usbd_transfer_submit(xfer);
560 break;
561
562 default: /* Error */
563 if (xfer->error == USB_ERR_CANCELLED) {
564 break;
565 }
566 goto tr_setup;
567 }
568 }
569
570 static void
571 ugen_isoc_write_callback(struct usb_xfer *xfer, usb_error_t error)
572 {
573 struct usb_fifo *f = usbd_xfer_softc(xfer);
574 usb_frlength_t actlen;
575 usb_frlength_t offset;
576 usb_frcount_t n;
577
578 DPRINTFN(4, "actlen=%u, aframes=%u\n", xfer->actlen, xfer->aframes);
579
580 switch (USB_GET_STATE(xfer)) {
581 case USB_ST_TRANSFERRED:
582 case USB_ST_SETUP:
583 tr_setup:
584 offset = 0;
585 for (n = 0; n != xfer->nframes; n++) {
586 if (usb_fifo_get_data(f, xfer->frbuffers, offset,
587 xfer->max_frame_size, &actlen, 1)) {
588 usbd_xfer_set_frame_len(xfer, n, actlen);
589 offset += actlen;
590 } else {
591 break;
592 }
593 }
594
595 for (; n != xfer->nframes; n++) {
596 /* fill in zero frames */
597 usbd_xfer_set_frame_len(xfer, n, 0);
598 }
599 usbd_transfer_submit(xfer);
600 break;
601
602 default: /* Error */
603 if (xfer->error == USB_ERR_CANCELLED) {
604 break;
605 }
606 goto tr_setup;
607 }
608 }
609
610 static int
611 ugen_set_config(struct usb_fifo *f, uint8_t index)
612 {
613 DPRINTFN(2, "index %u\n", index);
614
615 if (f->udev->flags.usb_mode != USB_MODE_HOST) {
616 /* not possible in device side mode */
617 return (ENOTTY);
618 }
619
620 /* make sure all FIFO's are gone */
621 /* else there can be a deadlock */
622 if (ugen_fs_uninit(f)) {
623 /* ignore any errors */
624 DPRINTFN(6, "no FIFOs\n");
625 }
626
627 if (usbd_start_set_config(f->udev, index) != 0)
628 return (EIO);
629
630 return (0);
631 }
632
633 static int
634 ugen_set_interface(struct usb_fifo *f,
635 uint8_t iface_index, uint8_t alt_index)
636 {
637 DPRINTFN(2, "%u, %u\n", iface_index, alt_index);
638
639 if (f->udev->flags.usb_mode != USB_MODE_HOST) {
640 /* not possible in device side mode */
641 return (ENOTTY);
642 }
643 /* make sure all FIFO's are gone */
644 /* else there can be a deadlock */
645 if (ugen_fs_uninit(f)) {
646 /* ignore any errors */
647 DPRINTFN(6, "no FIFOs\n");
648 }
649 /* change setting - will free generic FIFOs, if any */
650 if (usbd_set_alt_interface_index(f->udev, iface_index, alt_index)) {
651 return (EIO);
652 }
653 /* probe and attach */
654 if (usb_probe_and_attach(f->udev, iface_index)) {
655 return (EIO);
656 }
657 return (0);
658 }
659
660 /*------------------------------------------------------------------------*
661 * ugen_get_cdesc
662 *
663 * This function will retrieve the complete configuration descriptor
664 * at the given index.
665 *------------------------------------------------------------------------*/
666 static int
667 ugen_get_cdesc(struct usb_fifo *f, struct usb_gen_descriptor *ugd)
668 {
669 struct usb_config_descriptor *cdesc;
670 struct usb_device *udev = f->udev;
671 int error;
672 uint16_t len;
673 uint8_t free_data;
674
675 DPRINTFN(6, "\n");
676
677 if (ugd->ugd_data == NULL) {
678 /* userland pointer should not be zero */
679 return (EINVAL);
680 }
681 if ((ugd->ugd_config_index == USB_UNCONFIG_INDEX) ||
682 (ugd->ugd_config_index == udev->curr_config_index)) {
683 cdesc = usbd_get_config_descriptor(udev);
684 if (cdesc == NULL)
685 return (ENXIO);
686 free_data = 0;
687
688 } else {
689 #if (USB_HAVE_FIXED_CONFIG == 0)
690 if (usbd_req_get_config_desc_full(udev,
691 NULL, &cdesc, ugd->ugd_config_index)) {
692 return (ENXIO);
693 }
694 free_data = 1;
695 #else
696 /* configuration descriptor data is shared */
697 return (EINVAL);
698 #endif
699 }
700
701 len = UGETW(cdesc->wTotalLength);
702 if (len > ugd->ugd_maxlen) {
703 len = ugd->ugd_maxlen;
704 }
705 DPRINTFN(6, "len=%u\n", len);
706
707 ugd->ugd_actlen = len;
708 ugd->ugd_offset = 0;
709
710 error = copyout(cdesc, ugd->ugd_data, len);
711
712 if (free_data)
713 usbd_free_config_desc(udev, cdesc);
714
715 return (error);
716 }
717
718 /*
719 * This function is called having the enumeration SX locked which
720 * protects the scratch area used.
721 */
722 static int
723 ugen_get_sdesc(struct usb_fifo *f, struct usb_gen_descriptor *ugd)
724 {
725 void *ptr;
726 uint16_t size;
727 int error;
728
729 ptr = f->udev->scratch.data;
730 size = sizeof(f->udev->scratch.data);
731
732 if (usbd_req_get_string_desc(f->udev, NULL, ptr,
733 size, ugd->ugd_lang_id, ugd->ugd_string_index)) {
734 error = EINVAL;
735 } else {
736
737 if (size > ((uint8_t *)ptr)[0]) {
738 size = ((uint8_t *)ptr)[0];
739 }
740 if (size > ugd->ugd_maxlen) {
741 size = ugd->ugd_maxlen;
742 }
743 ugd->ugd_actlen = size;
744 ugd->ugd_offset = 0;
745
746 error = copyout(ptr, ugd->ugd_data, size);
747 }
748 return (error);
749 }
750
751 /*------------------------------------------------------------------------*
752 * ugen_get_iface_driver
753 *
754 * This function generates an USB interface description for userland.
755 *
756 * Returns:
757 * 0: Success
758 * Else: Failure
759 *------------------------------------------------------------------------*/
760 static int
761 ugen_get_iface_driver(struct usb_fifo *f, struct usb_gen_descriptor *ugd)
762 {
763 struct usb_device *udev = f->udev;
764 struct usb_interface *iface;
765 const char *ptr;
766 const char *desc;
767 unsigned int len;
768 unsigned int maxlen;
769 char buf[128];
770 int error;
771
772 DPRINTFN(6, "\n");
773
774 if ((ugd->ugd_data == NULL) || (ugd->ugd_maxlen == 0)) {
775 /* userland pointer should not be zero */
776 return (EINVAL);
777 }
778
779 iface = usbd_get_iface(udev, ugd->ugd_iface_index);
780 if ((iface == NULL) || (iface->idesc == NULL)) {
781 /* invalid interface index */
782 return (EINVAL);
783 }
784
785 /* read out device nameunit string, if any */
786 if ((iface->subdev != NULL) &&
787 device_is_attached(iface->subdev) &&
788 (ptr = device_get_nameunit(iface->subdev)) &&
789 (desc = device_get_desc(iface->subdev))) {
790
791 /* print description */
792 snprintf(buf, sizeof(buf), "%s: <%s>", ptr, desc);
793
794 /* range checks */
795 maxlen = ugd->ugd_maxlen - 1;
796 len = strlen(buf);
797 if (len > maxlen)
798 len = maxlen;
799
800 /* update actual length, including terminating zero */
801 ugd->ugd_actlen = len + 1;
802
803 /* copy out interface description */
804 error = copyout(buf, ugd->ugd_data, ugd->ugd_actlen);
805 } else {
806 /* zero length string is default */
807 error = copyout("", ugd->ugd_data, 1);
808 }
809 return (error);
810 }
811
812 /*------------------------------------------------------------------------*
813 * usb_gen_fill_deviceinfo
814 *
815 * This function dumps information about an USB device to the
816 * structure pointed to by the "di" argument.
817 *
818 * Returns:
819 * 0: Success
820 * Else: Failure
821 *------------------------------------------------------------------------*/
822 static int
823 usb_gen_fill_deviceinfo(struct usb_fifo *f, struct usb_device_info *di)
824 {
825 struct usb_device *udev;
826 struct usb_device *hub;
827
828 udev = f->udev;
829
830 bzero(di, sizeof(di[0]));
831
832 di->udi_bus = device_get_unit(udev->bus->bdev);
833 di->udi_addr = udev->address;
834 di->udi_index = udev->device_index;
835 strlcpy(di->udi_serial, usb_get_serial(udev), sizeof(di->udi_serial));
836 strlcpy(di->udi_vendor, usb_get_manufacturer(udev), sizeof(di->udi_vendor));
837 strlcpy(di->udi_product, usb_get_product(udev), sizeof(di->udi_product));
838 usb_printbcd(di->udi_release, sizeof(di->udi_release),
839 UGETW(udev->ddesc.bcdDevice));
840 di->udi_vendorNo = UGETW(udev->ddesc.idVendor);
841 di->udi_productNo = UGETW(udev->ddesc.idProduct);
842 di->udi_releaseNo = UGETW(udev->ddesc.bcdDevice);
843 di->udi_class = udev->ddesc.bDeviceClass;
844 di->udi_subclass = udev->ddesc.bDeviceSubClass;
845 di->udi_protocol = udev->ddesc.bDeviceProtocol;
846 di->udi_config_no = udev->curr_config_no;
847 di->udi_config_index = udev->curr_config_index;
848 di->udi_power = udev->flags.self_powered ? 0 : udev->power;
849 di->udi_speed = udev->speed;
850 di->udi_mode = udev->flags.usb_mode;
851 di->udi_power_mode = udev->power_mode;
852 di->udi_suspended = udev->flags.peer_suspended;
853
854 hub = udev->parent_hub;
855 if (hub) {
856 di->udi_hubaddr = hub->address;
857 di->udi_hubindex = hub->device_index;
858 di->udi_hubport = udev->port_no;
859 }
860 return (0);
861 }
862
863 /*------------------------------------------------------------------------*
864 * ugen_check_request
865 *
866 * Return values:
867 * 0: Access allowed
868 * Else: No access
869 *------------------------------------------------------------------------*/
870 static int
871 ugen_check_request(struct usb_device *udev, struct usb_device_request *req)
872 {
873 struct usb_endpoint *ep;
874 int error;
875
876 /*
877 * Avoid requests that would damage the bus integrity:
878 */
879 if (((req->bmRequestType == UT_WRITE_DEVICE) &&
880 (req->bRequest == UR_SET_ADDRESS)) ||
881 ((req->bmRequestType == UT_WRITE_DEVICE) &&
882 (req->bRequest == UR_SET_CONFIG)) ||
883 ((req->bmRequestType == UT_WRITE_INTERFACE) &&
884 (req->bRequest == UR_SET_INTERFACE))) {
885 /*
886 * These requests can be useful for testing USB drivers.
887 */
888 error = priv_check(curthread, PRIV_DRIVER);
889 if (error) {
890 return (error);
891 }
892 }
893 /*
894 * Special case - handle clearing of stall
895 */
896 if (req->bmRequestType == UT_WRITE_ENDPOINT) {
897
898 ep = usbd_get_ep_by_addr(udev, req->wIndex[0]);
899 if (ep == NULL) {
900 return (EINVAL);
901 }
902 if ((req->bRequest == UR_CLEAR_FEATURE) &&
903 (UGETW(req->wValue) == UF_ENDPOINT_HALT)) {
904 usbd_clear_data_toggle(udev, ep);
905 }
906 }
907 /* TODO: add more checks to verify the interface index */
908
909 return (0);
910 }
911
912 int
913 ugen_do_request(struct usb_fifo *f, struct usb_ctl_request *ur)
914 {
915 int error;
916 uint16_t len;
917 uint16_t actlen;
918
919 if (ugen_check_request(f->udev, &ur->ucr_request)) {
920 return (EPERM);
921 }
922 len = UGETW(ur->ucr_request.wLength);
923
924 /* check if "ucr_data" is valid */
925 if (len != 0) {
926 if (ur->ucr_data == NULL) {
927 return (EFAULT);
928 }
929 }
930 /* do the USB request */
931 error = usbd_do_request_flags
932 (f->udev, NULL, &ur->ucr_request, ur->ucr_data,
933 (ur->ucr_flags & USB_SHORT_XFER_OK) |
934 USB_USER_DATA_PTR, &actlen,
935 USB_DEFAULT_TIMEOUT);
936
937 ur->ucr_actlen = actlen;
938
939 if (error) {
940 error = EIO;
941 }
942 return (error);
943 }
944
945 /*------------------------------------------------------------------------
946 * ugen_re_enumerate
947 *------------------------------------------------------------------------*/
948 static int
949 ugen_re_enumerate(struct usb_fifo *f)
950 {
951 struct usb_device *udev = f->udev;
952 int error;
953
954 /*
955 * This request can be useful for testing USB drivers:
956 */
957 error = priv_check(curthread, PRIV_DRIVER);
958 if (error) {
959 return (error);
960 }
961 if (udev->flags.usb_mode != USB_MODE_HOST) {
962 /* not possible in device side mode */
963 DPRINTFN(6, "device mode\n");
964 return (ENOTTY);
965 }
966 /* make sure all FIFO's are gone */
967 /* else there can be a deadlock */
968 if (ugen_fs_uninit(f)) {
969 /* ignore any errors */
970 DPRINTFN(6, "no FIFOs\n");
971 }
972 /* start re-enumeration of device */
973 usbd_start_re_enumerate(udev);
974 return (0);
975 }
976
977 int
978 ugen_fs_uninit(struct usb_fifo *f)
979 {
980 if (f->fs_xfer == NULL) {
981 return (EINVAL);
982 }
983 usbd_transfer_unsetup(f->fs_xfer, f->fs_ep_max);
984 free(f->fs_xfer, M_USB);
985 f->fs_xfer = NULL;
986 f->fs_ep_max = 0;
987 f->fs_ep_ptr = NULL;
988 f->flag_iscomplete = 0;
989 usb_fifo_free_buffer(f);
990 return (0);
991 }
992
993 static uint8_t
994 ugen_fs_get_complete(struct usb_fifo *f, uint8_t *pindex)
995 {
996 struct usb_mbuf *m;
997
998 USB_IF_DEQUEUE(&f->used_q, m);
999
1000 if (m) {
1001 *pindex = *((uint8_t *)(m->cur_data_ptr));
1002
1003 USB_IF_ENQUEUE(&f->free_q, m);
1004
1005 return (0); /* success */
1006 } else {
1007
1008 *pindex = 0; /* fix compiler warning */
1009
1010 f->flag_iscomplete = 0;
1011 }
1012 return (1); /* failure */
1013 }
1014
1015 static void
1016 ugen_fs_set_complete(struct usb_fifo *f, uint8_t index)
1017 {
1018 struct usb_mbuf *m;
1019
1020 USB_IF_DEQUEUE(&f->free_q, m);
1021
1022 if (m == NULL) {
1023 /* can happen during close */
1024 DPRINTF("out of buffers\n");
1025 return;
1026 }
1027 USB_MBUF_RESET(m);
1028
1029 *((uint8_t *)(m->cur_data_ptr)) = index;
1030
1031 USB_IF_ENQUEUE(&f->used_q, m);
1032
1033 f->flag_iscomplete = 1;
1034
1035 usb_fifo_wakeup(f);
1036 }
1037
1038 static int
1039 ugen_fs_copy_in(struct usb_fifo *f, uint8_t ep_index)
1040 {
1041 struct usb_device_request *req;
1042 struct usb_xfer *xfer;
1043 struct usb_fs_endpoint fs_ep;
1044 void *uaddr; /* userland pointer */
1045 void *kaddr;
1046 usb_frlength_t offset;
1047 usb_frlength_t rem;
1048 usb_frcount_t n;
1049 uint32_t length;
1050 int error;
1051 uint8_t isread;
1052
1053 if (ep_index >= f->fs_ep_max) {
1054 return (EINVAL);
1055 }
1056 xfer = f->fs_xfer[ep_index];
1057 if (xfer == NULL) {
1058 return (EINVAL);
1059 }
1060 mtx_lock(f->priv_mtx);
1061 if (usbd_transfer_pending(xfer)) {
1062 mtx_unlock(f->priv_mtx);
1063 return (EBUSY); /* should not happen */
1064 }
1065 mtx_unlock(f->priv_mtx);
1066
1067 error = copyin(f->fs_ep_ptr +
1068 ep_index, &fs_ep, sizeof(fs_ep));
1069 if (error) {
1070 return (error);
1071 }
1072 /* security checks */
1073
1074 if (fs_ep.nFrames > xfer->max_frame_count) {
1075 xfer->error = USB_ERR_INVAL;
1076 goto complete;
1077 }
1078 if (fs_ep.nFrames == 0) {
1079 xfer->error = USB_ERR_INVAL;
1080 goto complete;
1081 }
1082 error = copyin(fs_ep.ppBuffer,
1083 &uaddr, sizeof(uaddr));
1084 if (error) {
1085 return (error);
1086 }
1087 /* reset first frame */
1088 usbd_xfer_set_frame_offset(xfer, 0, 0);
1089
1090 if (xfer->flags_int.control_xfr) {
1091
1092 req = xfer->frbuffers[0].buffer;
1093
1094 error = copyin(fs_ep.pLength,
1095 &length, sizeof(length));
1096 if (error) {
1097 return (error);
1098 }
1099 if (length != sizeof(*req)) {
1100 xfer->error = USB_ERR_INVAL;
1101 goto complete;
1102 }
1103 if (length != 0) {
1104 error = copyin(uaddr, req, length);
1105 if (error) {
1106 return (error);
1107 }
1108 }
1109 if (ugen_check_request(f->udev, req)) {
1110 xfer->error = USB_ERR_INVAL;
1111 goto complete;
1112 }
1113 usbd_xfer_set_frame_len(xfer, 0, length);
1114
1115 /* Host mode only ! */
1116 if ((req->bmRequestType &
1117 (UT_READ | UT_WRITE)) == UT_READ) {
1118 isread = 1;
1119 } else {
1120 isread = 0;
1121 }
1122 n = 1;
1123 offset = sizeof(*req);
1124
1125 } else {
1126 /* Device and Host mode */
1127 if (USB_GET_DATA_ISREAD(xfer)) {
1128 isread = 1;
1129 } else {
1130 isread = 0;
1131 }
1132 n = 0;
1133 offset = 0;
1134 }
1135
1136 rem = usbd_xfer_max_len(xfer);
1137 xfer->nframes = fs_ep.nFrames;
1138 xfer->timeout = fs_ep.timeout;
1139 if (xfer->timeout > 65535) {
1140 xfer->timeout = 65535;
1141 }
1142 if (fs_ep.flags & USB_FS_FLAG_SINGLE_SHORT_OK)
1143 xfer->flags.short_xfer_ok = 1;
1144 else
1145 xfer->flags.short_xfer_ok = 0;
1146
1147 if (fs_ep.flags & USB_FS_FLAG_MULTI_SHORT_OK)
1148 xfer->flags.short_frames_ok = 1;
1149 else
1150 xfer->flags.short_frames_ok = 0;
1151
1152 if (fs_ep.flags & USB_FS_FLAG_FORCE_SHORT)
1153 xfer->flags.force_short_xfer = 1;
1154 else
1155 xfer->flags.force_short_xfer = 0;
1156
1157 if (fs_ep.flags & USB_FS_FLAG_CLEAR_STALL)
1158 usbd_xfer_set_stall(xfer);
1159 else
1160 xfer->flags.stall_pipe = 0;
1161
1162 for (; n != xfer->nframes; n++) {
1163
1164 error = copyin(fs_ep.pLength + n,
1165 &length, sizeof(length));
1166 if (error) {
1167 break;
1168 }
1169 usbd_xfer_set_frame_len(xfer, n, length);
1170
1171 if (length > rem) {
1172 xfer->error = USB_ERR_INVAL;
1173 goto complete;
1174 }
1175 rem -= length;
1176
1177 if (!isread) {
1178
1179 /* we need to know the source buffer */
1180 error = copyin(fs_ep.ppBuffer + n,
1181 &uaddr, sizeof(uaddr));
1182 if (error) {
1183 break;
1184 }
1185 if (xfer->flags_int.isochronous_xfr) {
1186 /* get kernel buffer address */
1187 kaddr = xfer->frbuffers[0].buffer;
1188 kaddr = USB_ADD_BYTES(kaddr, offset);
1189 } else {
1190 /* set current frame offset */
1191 usbd_xfer_set_frame_offset(xfer, offset, n);
1192
1193 /* get kernel buffer address */
1194 kaddr = xfer->frbuffers[n].buffer;
1195 }
1196
1197 /* move data */
1198 error = copyin(uaddr, kaddr, length);
1199 if (error) {
1200 break;
1201 }
1202 }
1203 offset += length;
1204 }
1205 return (error);
1206
1207 complete:
1208 mtx_lock(f->priv_mtx);
1209 ugen_fs_set_complete(f, ep_index);
1210 mtx_unlock(f->priv_mtx);
1211 return (0);
1212 }
1213
1214 static int
1215 ugen_fs_copy_out(struct usb_fifo *f, uint8_t ep_index)
1216 {
1217 struct usb_device_request *req;
1218 struct usb_xfer *xfer;
1219 struct usb_fs_endpoint fs_ep;
1220 struct usb_fs_endpoint *fs_ep_uptr; /* userland ptr */
1221 void *uaddr; /* userland ptr */
1222 void *kaddr;
1223 usb_frlength_t offset;
1224 usb_frlength_t rem;
1225 usb_frcount_t n;
1226 uint32_t length;
1227 uint32_t temp;
1228 int error;
1229 uint8_t isread;
1230
1231 if (ep_index >= f->fs_ep_max)
1232 return (EINVAL);
1233
1234 xfer = f->fs_xfer[ep_index];
1235 if (xfer == NULL)
1236 return (EINVAL);
1237
1238 mtx_lock(f->priv_mtx);
1239 if (usbd_transfer_pending(xfer)) {
1240 mtx_unlock(f->priv_mtx);
1241 return (EBUSY); /* should not happen */
1242 }
1243 mtx_unlock(f->priv_mtx);
1244
1245 fs_ep_uptr = f->fs_ep_ptr + ep_index;
1246 error = copyin(fs_ep_uptr, &fs_ep, sizeof(fs_ep));
1247 if (error) {
1248 return (error);
1249 }
1250 fs_ep.status = xfer->error;
1251 fs_ep.aFrames = xfer->aframes;
1252 fs_ep.isoc_time_complete = xfer->isoc_time_complete;
1253 if (xfer->error) {
1254 goto complete;
1255 }
1256 if (xfer->flags_int.control_xfr) {
1257 req = xfer->frbuffers[0].buffer;
1258
1259 /* Host mode only ! */
1260 if ((req->bmRequestType & (UT_READ | UT_WRITE)) == UT_READ) {
1261 isread = 1;
1262 } else {
1263 isread = 0;
1264 }
1265 if (xfer->nframes == 0)
1266 n = 0; /* should never happen */
1267 else
1268 n = 1;
1269 } else {
1270 /* Device and Host mode */
1271 if (USB_GET_DATA_ISREAD(xfer)) {
1272 isread = 1;
1273 } else {
1274 isread = 0;
1275 }
1276 n = 0;
1277 }
1278
1279 /* Update lengths and copy out data */
1280
1281 rem = usbd_xfer_max_len(xfer);
1282 offset = 0;
1283
1284 for (; n != xfer->nframes; n++) {
1285
1286 /* get initial length into "temp" */
1287 error = copyin(fs_ep.pLength + n,
1288 &temp, sizeof(temp));
1289 if (error) {
1290 return (error);
1291 }
1292 if (temp > rem) {
1293 /* the userland length has been corrupted */
1294 DPRINTF("corrupt userland length "
1295 "%u > %u\n", temp, rem);
1296 fs_ep.status = USB_ERR_INVAL;
1297 goto complete;
1298 }
1299 rem -= temp;
1300
1301 /* get actual transfer length */
1302 length = xfer->frlengths[n];
1303 if (length > temp) {
1304 /* data overflow */
1305 fs_ep.status = USB_ERR_INVAL;
1306 DPRINTF("data overflow %u > %u\n",
1307 length, temp);
1308 goto complete;
1309 }
1310 if (isread) {
1311
1312 /* we need to know the destination buffer */
1313 error = copyin(fs_ep.ppBuffer + n,
1314 &uaddr, sizeof(uaddr));
1315 if (error) {
1316 return (error);
1317 }
1318 if (xfer->flags_int.isochronous_xfr) {
1319 /* only one frame buffer */
1320 kaddr = USB_ADD_BYTES(
1321 xfer->frbuffers[0].buffer, offset);
1322 } else {
1323 /* multiple frame buffers */
1324 kaddr = xfer->frbuffers[n].buffer;
1325 }
1326
1327 /* move data */
1328 error = copyout(kaddr, uaddr, length);
1329 if (error) {
1330 return (error);
1331 }
1332 }
1333 /*
1334 * Update offset according to initial length, which is
1335 * needed by isochronous transfers!
1336 */
1337 offset += temp;
1338
1339 /* update length */
1340 error = copyout(&length,
1341 fs_ep.pLength + n, sizeof(length));
1342 if (error) {
1343 return (error);
1344 }
1345 }
1346
1347 complete:
1348 /* update "aFrames" */
1349 error = copyout(&fs_ep.aFrames, &fs_ep_uptr->aFrames,
1350 sizeof(fs_ep.aFrames));
1351 if (error)
1352 goto done;
1353
1354 /* update "isoc_time_complete" */
1355 error = copyout(&fs_ep.isoc_time_complete,
1356 &fs_ep_uptr->isoc_time_complete,
1357 sizeof(fs_ep.isoc_time_complete));
1358 if (error)
1359 goto done;
1360 /* update "status" */
1361 error = copyout(&fs_ep.status, &fs_ep_uptr->status,
1362 sizeof(fs_ep.status));
1363 done:
1364 return (error);
1365 }
1366
1367 static uint8_t
1368 ugen_fifo_in_use(struct usb_fifo *f, int fflags)
1369 {
1370 struct usb_fifo *f_rx;
1371 struct usb_fifo *f_tx;
1372
1373 f_rx = f->udev->fifo[(f->fifo_index & ~1) + USB_FIFO_RX];
1374 f_tx = f->udev->fifo[(f->fifo_index & ~1) + USB_FIFO_TX];
1375
1376 if ((fflags & FREAD) && f_rx &&
1377 (f_rx->xfer[0] || f_rx->xfer[1])) {
1378 return (1); /* RX FIFO in use */
1379 }
1380 if ((fflags & FWRITE) && f_tx &&
1381 (f_tx->xfer[0] || f_tx->xfer[1])) {
1382 return (1); /* TX FIFO in use */
1383 }
1384 return (0); /* not in use */
1385 }
1386
1387 static int
1388 ugen_ioctl(struct usb_fifo *f, u_long cmd, void *addr, int fflags)
1389 {
1390 struct usb_config usb_config[1];
1391 struct usb_device_request req;
1392 union {
1393 struct usb_fs_complete *pcomp;
1394 struct usb_fs_start *pstart;
1395 struct usb_fs_stop *pstop;
1396 struct usb_fs_open *popen;
1397 struct usb_fs_open_stream *popen_stream;
1398 struct usb_fs_close *pclose;
1399 struct usb_fs_clear_stall_sync *pstall;
1400 void *addr;
1401 } u;
1402 struct usb_endpoint *ep;
1403 struct usb_endpoint_descriptor *ed;
1404 struct usb_xfer *xfer;
1405 int error = 0;
1406 uint8_t iface_index;
1407 uint8_t isread;
1408 uint8_t ep_index;
1409 uint8_t pre_scale;
1410
1411 u.addr = addr;
1412
1413 DPRINTFN(6, "cmd=0x%08lx\n", cmd);
1414
1415 switch (cmd) {
1416 case USB_FS_COMPLETE:
1417 mtx_lock(f->priv_mtx);
1418 error = ugen_fs_get_complete(f, &ep_index);
1419 mtx_unlock(f->priv_mtx);
1420
1421 if (error) {
1422 error = EBUSY;
1423 break;
1424 }
1425 u.pcomp->ep_index = ep_index;
1426 error = ugen_fs_copy_out(f, u.pcomp->ep_index);
1427 break;
1428
1429 case USB_FS_START:
1430 error = ugen_fs_copy_in(f, u.pstart->ep_index);
1431 if (error)
1432 break;
1433 mtx_lock(f->priv_mtx);
1434 xfer = f->fs_xfer[u.pstart->ep_index];
1435 usbd_transfer_start(xfer);
1436 mtx_unlock(f->priv_mtx);
1437 break;
1438
1439 case USB_FS_STOP:
1440 if (u.pstop->ep_index >= f->fs_ep_max) {
1441 error = EINVAL;
1442 break;
1443 }
1444 mtx_lock(f->priv_mtx);
1445 xfer = f->fs_xfer[u.pstart->ep_index];
1446 if (usbd_transfer_pending(xfer)) {
1447 usbd_transfer_stop(xfer);
1448 /*
1449 * Check if the USB transfer was stopped
1450 * before it was even started. Else a cancel
1451 * callback will be pending.
1452 */
1453 if (!xfer->flags_int.transferring) {
1454 ugen_fs_set_complete(xfer->priv_sc,
1455 USB_P2U(xfer->priv_fifo));
1456 }
1457 }
1458 mtx_unlock(f->priv_mtx);
1459 break;
1460
1461 case USB_FS_OPEN:
1462 case USB_FS_OPEN_STREAM:
1463 if (u.popen->ep_index >= f->fs_ep_max) {
1464 error = EINVAL;
1465 break;
1466 }
1467 if (f->fs_xfer[u.popen->ep_index] != NULL) {
1468 error = EBUSY;
1469 break;
1470 }
1471 if (u.popen->max_bufsize > USB_FS_MAX_BUFSIZE) {
1472 u.popen->max_bufsize = USB_FS_MAX_BUFSIZE;
1473 }
1474 if (u.popen->max_frames & USB_FS_MAX_FRAMES_PRE_SCALE) {
1475 pre_scale = 1;
1476 u.popen->max_frames &= ~USB_FS_MAX_FRAMES_PRE_SCALE;
1477 } else {
1478 pre_scale = 0;
1479 }
1480 if (u.popen->max_frames > USB_FS_MAX_FRAMES) {
1481 u.popen->max_frames = USB_FS_MAX_FRAMES;
1482 break;
1483 }
1484 if (u.popen->max_frames == 0) {
1485 error = EINVAL;
1486 break;
1487 }
1488 ep = usbd_get_ep_by_addr(f->udev, u.popen->ep_no);
1489 if (ep == NULL) {
1490 error = EINVAL;
1491 break;
1492 }
1493 ed = ep->edesc;
1494 if (ed == NULL) {
1495 error = ENXIO;
1496 break;
1497 }
1498 iface_index = ep->iface_index;
1499
1500 memset(usb_config, 0, sizeof(usb_config));
1501
1502 usb_config[0].type = ed->bmAttributes & UE_XFERTYPE;
1503 usb_config[0].endpoint = ed->bEndpointAddress & UE_ADDR;
1504 usb_config[0].direction = ed->bEndpointAddress & (UE_DIR_OUT | UE_DIR_IN);
1505 usb_config[0].interval = USB_DEFAULT_INTERVAL;
1506 usb_config[0].flags.proxy_buffer = 1;
1507 if (pre_scale != 0)
1508 usb_config[0].flags.pre_scale_frames = 1;
1509 usb_config[0].callback = &ugen_ctrl_fs_callback;
1510 usb_config[0].timeout = 0; /* no timeout */
1511 usb_config[0].frames = u.popen->max_frames;
1512 usb_config[0].bufsize = u.popen->max_bufsize;
1513 usb_config[0].usb_mode = USB_MODE_DUAL; /* both modes */
1514 if (cmd == USB_FS_OPEN_STREAM)
1515 usb_config[0].stream_id = u.popen_stream->stream_id;
1516
1517 if (usb_config[0].type == UE_CONTROL) {
1518 if (f->udev->flags.usb_mode != USB_MODE_HOST) {
1519 error = EINVAL;
1520 break;
1521 }
1522 } else {
1523
1524 isread = ((usb_config[0].endpoint &
1525 (UE_DIR_IN | UE_DIR_OUT)) == UE_DIR_IN);
1526
1527 if (f->udev->flags.usb_mode != USB_MODE_HOST) {
1528 isread = !isread;
1529 }
1530 /* check permissions */
1531 if (isread) {
1532 if (!(fflags & FREAD)) {
1533 error = EPERM;
1534 break;
1535 }
1536 } else {
1537 if (!(fflags & FWRITE)) {
1538 error = EPERM;
1539 break;
1540 }
1541 }
1542 }
1543 error = usbd_transfer_setup(f->udev, &iface_index,
1544 f->fs_xfer + u.popen->ep_index, usb_config, 1,
1545 f, f->priv_mtx);
1546 if (error == 0) {
1547 /* update maximums */
1548 u.popen->max_packet_length =
1549 f->fs_xfer[u.popen->ep_index]->max_frame_size;
1550 u.popen->max_bufsize =
1551 f->fs_xfer[u.popen->ep_index]->max_data_length;
1552 /* update number of frames */
1553 u.popen->max_frames =
1554 f->fs_xfer[u.popen->ep_index]->nframes;
1555 /* store index of endpoint */
1556 f->fs_xfer[u.popen->ep_index]->priv_fifo =
1557 ((uint8_t *)0) + u.popen->ep_index;
1558 } else {
1559 error = ENOMEM;
1560 }
1561 break;
1562
1563 case USB_FS_CLOSE:
1564 if (u.pclose->ep_index >= f->fs_ep_max) {
1565 error = EINVAL;
1566 break;
1567 }
1568 if (f->fs_xfer[u.pclose->ep_index] == NULL) {
1569 error = EINVAL;
1570 break;
1571 }
1572 usbd_transfer_unsetup(f->fs_xfer + u.pclose->ep_index, 1);
1573 break;
1574
1575 case USB_FS_CLEAR_STALL_SYNC:
1576 if (u.pstall->ep_index >= f->fs_ep_max) {
1577 error = EINVAL;
1578 break;
1579 }
1580 if (f->fs_xfer[u.pstall->ep_index] == NULL) {
1581 error = EINVAL;
1582 break;
1583 }
1584 if (f->udev->flags.usb_mode != USB_MODE_HOST) {
1585 error = EINVAL;
1586 break;
1587 }
1588 mtx_lock(f->priv_mtx);
1589 error = usbd_transfer_pending(f->fs_xfer[u.pstall->ep_index]);
1590 mtx_unlock(f->priv_mtx);
1591
1592 if (error) {
1593 return (EBUSY);
1594 }
1595 ep = f->fs_xfer[u.pstall->ep_index]->endpoint;
1596
1597 /* setup a clear-stall packet */
1598 req.bmRequestType = UT_WRITE_ENDPOINT;
1599 req.bRequest = UR_CLEAR_FEATURE;
1600 USETW(req.wValue, UF_ENDPOINT_HALT);
1601 req.wIndex[0] = ep->edesc->bEndpointAddress;
1602 req.wIndex[1] = 0;
1603 USETW(req.wLength, 0);
1604
1605 error = usbd_do_request(f->udev, NULL, &req, NULL);
1606 if (error == 0) {
1607 usbd_clear_data_toggle(f->udev, ep);
1608 } else {
1609 error = ENXIO;
1610 }
1611 break;
1612
1613 default:
1614 error = ENOIOCTL;
1615 break;
1616 }
1617
1618 DPRINTFN(6, "error=%d\n", error);
1619
1620 return (error);
1621 }
1622
1623 static int
1624 ugen_set_short_xfer(struct usb_fifo *f, void *addr)
1625 {
1626 uint8_t t;
1627
1628 if (*(int *)addr)
1629 t = 1;
1630 else
1631 t = 0;
1632
1633 if (f->flag_short == t) {
1634 /* same value like before - accept */
1635 return (0);
1636 }
1637 if (f->xfer[0] || f->xfer[1]) {
1638 /* cannot change this during transfer */
1639 return (EBUSY);
1640 }
1641 f->flag_short = t;
1642 return (0);
1643 }
1644
1645 static int
1646 ugen_set_timeout(struct usb_fifo *f, void *addr)
1647 {
1648 f->timeout = *(int *)addr;
1649 if (f->timeout > 65535) {
1650 /* limit user input */
1651 f->timeout = 65535;
1652 }
1653 return (0);
1654 }
1655
1656 static int
1657 ugen_get_frame_size(struct usb_fifo *f, void *addr)
1658 {
1659 if (f->xfer[0]) {
1660 *(int *)addr = f->xfer[0]->max_frame_size;
1661 } else {
1662 return (EINVAL);
1663 }
1664 return (0);
1665 }
1666
1667 static int
1668 ugen_set_buffer_size(struct usb_fifo *f, void *addr)
1669 {
1670 usb_frlength_t t;
1671
1672 if (*(int *)addr < 0)
1673 t = 0; /* use "wMaxPacketSize" */
1674 else if (*(int *)addr < (256 * 1024))
1675 t = *(int *)addr;
1676 else
1677 t = 256 * 1024;
1678
1679 if (f->bufsize == t) {
1680 /* same value like before - accept */
1681 return (0);
1682 }
1683 if (f->xfer[0] || f->xfer[1]) {
1684 /* cannot change this during transfer */
1685 return (EBUSY);
1686 }
1687 f->bufsize = t;
1688 return (0);
1689 }
1690
1691 static int
1692 ugen_get_buffer_size(struct usb_fifo *f, void *addr)
1693 {
1694 *(int *)addr = f->bufsize;
1695 return (0);
1696 }
1697
1698 static int
1699 ugen_get_iface_desc(struct usb_fifo *f,
1700 struct usb_interface_descriptor *idesc)
1701 {
1702 struct usb_interface *iface;
1703
1704 iface = usbd_get_iface(f->udev, f->iface_index);
1705 if (iface && iface->idesc) {
1706 *idesc = *(iface->idesc);
1707 } else {
1708 return (EIO);
1709 }
1710 return (0);
1711 }
1712
1713 static int
1714 ugen_get_endpoint_desc(struct usb_fifo *f,
1715 struct usb_endpoint_descriptor *ed)
1716 {
1717 struct usb_endpoint *ep;
1718
1719 ep = usb_fifo_softc(f);
1720
1721 if (ep && ep->edesc) {
1722 *ed = *ep->edesc;
1723 } else {
1724 return (EINVAL);
1725 }
1726 return (0);
1727 }
1728
1729 static int
1730 ugen_set_power_mode(struct usb_fifo *f, int mode)
1731 {
1732 struct usb_device *udev = f->udev;
1733 int err;
1734 uint8_t old_mode;
1735
1736 if ((udev == NULL) ||
1737 (udev->parent_hub == NULL)) {
1738 return (EINVAL);
1739 }
1740 err = priv_check(curthread, PRIV_DRIVER);
1741 if (err)
1742 return (err);
1743
1744 /* get old power mode */
1745 old_mode = udev->power_mode;
1746
1747 /* if no change, then just return */
1748 if (old_mode == mode)
1749 return (0);
1750
1751 switch (mode) {
1752 case USB_POWER_MODE_OFF:
1753 if (udev->flags.usb_mode == USB_MODE_HOST &&
1754 udev->re_enumerate_wait == USB_RE_ENUM_DONE) {
1755 udev->re_enumerate_wait = USB_RE_ENUM_PWR_OFF;
1756 }
1757 /* set power mode will wake up the explore thread */
1758 break;
1759
1760 case USB_POWER_MODE_ON:
1761 case USB_POWER_MODE_SAVE:
1762 break;
1763
1764 case USB_POWER_MODE_RESUME:
1765 #if USB_HAVE_POWERD
1766 /* let USB-powerd handle resume */
1767 USB_BUS_LOCK(udev->bus);
1768 udev->pwr_save.write_refs++;
1769 udev->pwr_save.last_xfer_time = ticks;
1770 USB_BUS_UNLOCK(udev->bus);
1771
1772 /* set new power mode */
1773 usbd_set_power_mode(udev, USB_POWER_MODE_SAVE);
1774
1775 /* wait for resume to complete */
1776 usb_pause_mtx(NULL, hz / 4);
1777
1778 /* clear write reference */
1779 USB_BUS_LOCK(udev->bus);
1780 udev->pwr_save.write_refs--;
1781 USB_BUS_UNLOCK(udev->bus);
1782 #endif
1783 mode = USB_POWER_MODE_SAVE;
1784 break;
1785
1786 case USB_POWER_MODE_SUSPEND:
1787 #if USB_HAVE_POWERD
1788 /* let USB-powerd handle suspend */
1789 USB_BUS_LOCK(udev->bus);
1790 udev->pwr_save.last_xfer_time = ticks - (256 * hz);
1791 USB_BUS_UNLOCK(udev->bus);
1792 #endif
1793 mode = USB_POWER_MODE_SAVE;
1794 break;
1795
1796 default:
1797 return (EINVAL);
1798 }
1799
1800 if (err)
1801 return (ENXIO); /* I/O failure */
1802
1803 /* if we are powered off we need to re-enumerate first */
1804 if (old_mode == USB_POWER_MODE_OFF) {
1805 if (udev->flags.usb_mode == USB_MODE_HOST &&
1806 udev->re_enumerate_wait == USB_RE_ENUM_DONE) {
1807 udev->re_enumerate_wait = USB_RE_ENUM_START;
1808 }
1809 /* set power mode will wake up the explore thread */
1810 }
1811
1812 /* set new power mode */
1813 usbd_set_power_mode(udev, mode);
1814
1815 return (0); /* success */
1816 }
1817
1818 static int
1819 ugen_get_power_mode(struct usb_fifo *f)
1820 {
1821 struct usb_device *udev = f->udev;
1822
1823 if (udev == NULL)
1824 return (USB_POWER_MODE_ON);
1825
1826 return (udev->power_mode);
1827 }
1828
1829 static int
1830 ugen_get_port_path(struct usb_fifo *f, struct usb_device_port_path *dpp)
1831 {
1832 struct usb_device *udev = f->udev;
1833 struct usb_device *next;
1834 unsigned int nlevel = 0;
1835
1836 if (udev == NULL)
1837 goto error;
1838
1839 dpp->udp_bus = device_get_unit(udev->bus->bdev);
1840 dpp->udp_index = udev->device_index;
1841
1842 /* count port levels */
1843 next = udev;
1844 while (next->parent_hub != NULL) {
1845 nlevel++;
1846 next = next->parent_hub;
1847 }
1848
1849 /* check if too many levels */
1850 if (nlevel > USB_DEVICE_PORT_PATH_MAX)
1851 goto error;
1852
1853 /* store total level of ports */
1854 dpp->udp_port_level = nlevel;
1855
1856 /* store port index array */
1857 next = udev;
1858 while (next->parent_hub != NULL) {
1859 dpp->udp_port_no[--nlevel] = next->port_no;
1860 next = next->parent_hub;
1861 }
1862 return (0); /* success */
1863
1864 error:
1865 return (EINVAL); /* failure */
1866 }
1867
1868 static int
1869 ugen_get_power_usage(struct usb_fifo *f)
1870 {
1871 struct usb_device *udev = f->udev;
1872
1873 if (udev == NULL)
1874 return (0);
1875
1876 return (udev->power);
1877 }
1878
1879 static int
1880 ugen_do_port_feature(struct usb_fifo *f, uint8_t port_no,
1881 uint8_t set, uint16_t feature)
1882 {
1883 struct usb_device *udev = f->udev;
1884 struct usb_hub *hub;
1885 int err;
1886
1887 err = priv_check(curthread, PRIV_DRIVER);
1888 if (err) {
1889 return (err);
1890 }
1891 if (port_no == 0) {
1892 return (EINVAL);
1893 }
1894 if ((udev == NULL) ||
1895 (udev->hub == NULL)) {
1896 return (EINVAL);
1897 }
1898 hub = udev->hub;
1899
1900 if (port_no > hub->nports) {
1901 return (EINVAL);
1902 }
1903 if (set)
1904 err = usbd_req_set_port_feature(udev,
1905 NULL, port_no, feature);
1906 else
1907 err = usbd_req_clear_port_feature(udev,
1908 NULL, port_no, feature);
1909
1910 if (err)
1911 return (ENXIO); /* failure */
1912
1913 return (0); /* success */
1914 }
1915
1916 static int
1917 ugen_iface_ioctl(struct usb_fifo *f, u_long cmd, void *addr, int fflags)
1918 {
1919 struct usb_fifo *f_rx;
1920 struct usb_fifo *f_tx;
1921 int error = 0;
1922
1923 f_rx = f->udev->fifo[(f->fifo_index & ~1) + USB_FIFO_RX];
1924 f_tx = f->udev->fifo[(f->fifo_index & ~1) + USB_FIFO_TX];
1925
1926 switch (cmd) {
1927 case USB_SET_RX_SHORT_XFER:
1928 if (fflags & FREAD) {
1929 error = ugen_set_short_xfer(f_rx, addr);
1930 } else {
1931 error = EINVAL;
1932 }
1933 break;
1934
1935 case USB_SET_TX_FORCE_SHORT:
1936 if (fflags & FWRITE) {
1937 error = ugen_set_short_xfer(f_tx, addr);
1938 } else {
1939 error = EINVAL;
1940 }
1941 break;
1942
1943 case USB_SET_RX_TIMEOUT:
1944 if (fflags & FREAD) {
1945 error = ugen_set_timeout(f_rx, addr);
1946 } else {
1947 error = EINVAL;
1948 }
1949 break;
1950
1951 case USB_SET_TX_TIMEOUT:
1952 if (fflags & FWRITE) {
1953 error = ugen_set_timeout(f_tx, addr);
1954 } else {
1955 error = EINVAL;
1956 }
1957 break;
1958
1959 case USB_GET_RX_FRAME_SIZE:
1960 if (fflags & FREAD) {
1961 error = ugen_get_frame_size(f_rx, addr);
1962 } else {
1963 error = EINVAL;
1964 }
1965 break;
1966
1967 case USB_GET_TX_FRAME_SIZE:
1968 if (fflags & FWRITE) {
1969 error = ugen_get_frame_size(f_tx, addr);
1970 } else {
1971 error = EINVAL;
1972 }
1973 break;
1974
1975 case USB_SET_RX_BUFFER_SIZE:
1976 if (fflags & FREAD) {
1977 error = ugen_set_buffer_size(f_rx, addr);
1978 } else {
1979 error = EINVAL;
1980 }
1981 break;
1982
1983 case USB_SET_TX_BUFFER_SIZE:
1984 if (fflags & FWRITE) {
1985 error = ugen_set_buffer_size(f_tx, addr);
1986 } else {
1987 error = EINVAL;
1988 }
1989 break;
1990
1991 case USB_GET_RX_BUFFER_SIZE:
1992 if (fflags & FREAD) {
1993 error = ugen_get_buffer_size(f_rx, addr);
1994 } else {
1995 error = EINVAL;
1996 }
1997 break;
1998
1999 case USB_GET_TX_BUFFER_SIZE:
2000 if (fflags & FWRITE) {
2001 error = ugen_get_buffer_size(f_tx, addr);
2002 } else {
2003 error = EINVAL;
2004 }
2005 break;
2006
2007 case USB_GET_RX_INTERFACE_DESC:
2008 if (fflags & FREAD) {
2009 error = ugen_get_iface_desc(f_rx, addr);
2010 } else {
2011 error = EINVAL;
2012 }
2013 break;
2014
2015 case USB_GET_TX_INTERFACE_DESC:
2016 if (fflags & FWRITE) {
2017 error = ugen_get_iface_desc(f_tx, addr);
2018 } else {
2019 error = EINVAL;
2020 }
2021 break;
2022
2023 case USB_GET_RX_ENDPOINT_DESC:
2024 if (fflags & FREAD) {
2025 error = ugen_get_endpoint_desc(f_rx, addr);
2026 } else {
2027 error = EINVAL;
2028 }
2029 break;
2030
2031 case USB_GET_TX_ENDPOINT_DESC:
2032 if (fflags & FWRITE) {
2033 error = ugen_get_endpoint_desc(f_tx, addr);
2034 } else {
2035 error = EINVAL;
2036 }
2037 break;
2038
2039 case USB_SET_RX_STALL_FLAG:
2040 if ((fflags & FREAD) && (*(int *)addr)) {
2041 f_rx->flag_stall = 1;
2042 }
2043 break;
2044
2045 case USB_SET_TX_STALL_FLAG:
2046 if ((fflags & FWRITE) && (*(int *)addr)) {
2047 f_tx->flag_stall = 1;
2048 }
2049 break;
2050
2051 default:
2052 error = ENOIOCTL;
2053 break;
2054 }
2055 return (error);
2056 }
2057
2058 static int
2059 ugen_ioctl_post(struct usb_fifo *f, u_long cmd, void *addr, int fflags)
2060 {
2061 union {
2062 struct usb_interface_descriptor *idesc;
2063 struct usb_alt_interface *ai;
2064 struct usb_device_descriptor *ddesc;
2065 struct usb_config_descriptor *cdesc;
2066 struct usb_device_stats *stat;
2067 struct usb_fs_init *pinit;
2068 struct usb_fs_uninit *puninit;
2069 struct usb_device_port_path *dpp;
2070 uint32_t *ptime;
2071 void *addr;
2072 int *pint;
2073 } u;
2074 struct usb_device_descriptor *dtemp;
2075 struct usb_config_descriptor *ctemp;
2076 struct usb_interface *iface;
2077 int error = 0;
2078 uint8_t n;
2079
2080 u.addr = addr;
2081
2082 DPRINTFN(6, "cmd=0x%08lx\n", cmd);
2083
2084 switch (cmd) {
2085 case USB_DISCOVER:
2086 usb_needs_explore_all();
2087 break;
2088
2089 case USB_SETDEBUG:
2090 if (!(fflags & FWRITE)) {
2091 error = EPERM;
2092 break;
2093 }
2094 usb_debug = *(int *)addr;
2095 break;
2096
2097 case USB_GET_CONFIG:
2098 *(int *)addr = f->udev->curr_config_index;
2099 break;
2100
2101 case USB_SET_CONFIG:
2102 if (!(fflags & FWRITE)) {
2103 error = EPERM;
2104 break;
2105 }
2106 error = ugen_set_config(f, *(int *)addr);
2107 break;
2108
2109 case USB_GET_ALTINTERFACE:
2110 iface = usbd_get_iface(f->udev,
2111 u.ai->uai_interface_index);
2112 if (iface && iface->idesc) {
2113 u.ai->uai_alt_index = iface->alt_index;
2114 } else {
2115 error = EINVAL;
2116 }
2117 break;
2118
2119 case USB_SET_ALTINTERFACE:
2120 if (!(fflags & FWRITE)) {
2121 error = EPERM;
2122 break;
2123 }
2124 error = ugen_set_interface(f,
2125 u.ai->uai_interface_index, u.ai->uai_alt_index);
2126 break;
2127
2128 case USB_GET_DEVICE_DESC:
2129 dtemp = usbd_get_device_descriptor(f->udev);
2130 if (!dtemp) {
2131 error = EIO;
2132 break;
2133 }
2134 *u.ddesc = *dtemp;
2135 break;
2136
2137 case USB_GET_CONFIG_DESC:
2138 ctemp = usbd_get_config_descriptor(f->udev);
2139 if (!ctemp) {
2140 error = EIO;
2141 break;
2142 }
2143 *u.cdesc = *ctemp;
2144 break;
2145
2146 case USB_GET_FULL_DESC:
2147 error = ugen_get_cdesc(f, addr);
2148 break;
2149
2150 case USB_GET_STRING_DESC:
2151 error = ugen_get_sdesc(f, addr);
2152 break;
2153
2154 case USB_GET_IFACE_DRIVER:
2155 error = ugen_get_iface_driver(f, addr);
2156 break;
2157
2158 case USB_REQUEST:
2159 case USB_DO_REQUEST:
2160 if (!(fflags & FWRITE)) {
2161 error = EPERM;
2162 break;
2163 }
2164 error = ugen_do_request(f, addr);
2165 break;
2166
2167 case USB_DEVICEINFO:
2168 case USB_GET_DEVICEINFO:
2169 error = usb_gen_fill_deviceinfo(f, addr);
2170 break;
2171
2172 case USB_DEVICESTATS:
2173 for (n = 0; n != 4; n++) {
2174
2175 u.stat->uds_requests_fail[n] =
2176 f->udev->bus->stats_err.uds_requests[n];
2177
2178 u.stat->uds_requests_ok[n] =
2179 f->udev->bus->stats_ok.uds_requests[n];
2180 }
2181 break;
2182
2183 case USB_DEVICEENUMERATE:
2184 error = ugen_re_enumerate(f);
2185 break;
2186
2187 case USB_GET_PLUGTIME:
2188 *u.ptime = f->udev->plugtime;
2189 break;
2190
2191 case USB_CLAIM_INTERFACE:
2192 case USB_RELEASE_INTERFACE:
2193 /* TODO */
2194 break;
2195
2196 case USB_IFACE_DRIVER_ACTIVE:
2197
2198 n = *u.pint & 0xFF;
2199
2200 iface = usbd_get_iface(f->udev, n);
2201
2202 if (iface && iface->subdev)
2203 error = 0;
2204 else
2205 error = ENXIO;
2206 break;
2207
2208 case USB_IFACE_DRIVER_DETACH:
2209
2210 error = priv_check(curthread, PRIV_DRIVER);
2211
2212 if (error)
2213 break;
2214
2215 n = *u.pint & 0xFF;
2216
2217 if (n == USB_IFACE_INDEX_ANY) {
2218 error = EINVAL;
2219 break;
2220 }
2221
2222 /*
2223 * Detach the currently attached driver.
2224 */
2225 usb_detach_device(f->udev, n, 0);
2226
2227 /*
2228 * Set parent to self, this should keep attach away
2229 * until the next set configuration event.
2230 */
2231 usbd_set_parent_iface(f->udev, n, n);
2232 break;
2233
2234 case USB_SET_POWER_MODE:
2235 error = ugen_set_power_mode(f, *u.pint);
2236 break;
2237
2238 case USB_GET_POWER_MODE:
2239 *u.pint = ugen_get_power_mode(f);
2240 break;
2241
2242 case USB_GET_DEV_PORT_PATH:
2243 error = ugen_get_port_path(f, u.dpp);
2244 break;
2245
2246 case USB_GET_POWER_USAGE:
2247 *u.pint = ugen_get_power_usage(f);
2248 break;
2249
2250 case USB_SET_PORT_ENABLE:
2251 error = ugen_do_port_feature(f,
2252 *u.pint, 1, UHF_PORT_ENABLE);
2253 break;
2254
2255 case USB_SET_PORT_DISABLE:
2256 error = ugen_do_port_feature(f,
2257 *u.pint, 0, UHF_PORT_ENABLE);
2258 break;
2259
2260 case USB_FS_INIT:
2261 /* verify input parameters */
2262 if (u.pinit->pEndpoints == NULL) {
2263 error = EINVAL;
2264 break;
2265 }
2266 if (u.pinit->ep_index_max > 127) {
2267 error = EINVAL;
2268 break;
2269 }
2270 if (u.pinit->ep_index_max == 0) {
2271 error = EINVAL;
2272 break;
2273 }
2274 if (f->fs_xfer != NULL) {
2275 error = EBUSY;
2276 break;
2277 }
2278 if (f->dev_ep_index != 0) {
2279 error = EINVAL;
2280 break;
2281 }
2282 if (ugen_fifo_in_use(f, fflags)) {
2283 error = EBUSY;
2284 break;
2285 }
2286 error = usb_fifo_alloc_buffer(f, 1, u.pinit->ep_index_max);
2287 if (error) {
2288 break;
2289 }
2290 f->fs_xfer = malloc(sizeof(f->fs_xfer[0]) *
2291 u.pinit->ep_index_max, M_USB, M_WAITOK | M_ZERO);
2292 if (f->fs_xfer == NULL) {
2293 usb_fifo_free_buffer(f);
2294 error = ENOMEM;
2295 break;
2296 }
2297 f->fs_ep_max = u.pinit->ep_index_max;
2298 f->fs_ep_ptr = u.pinit->pEndpoints;
2299 break;
2300
2301 case USB_FS_UNINIT:
2302 if (u.puninit->dummy != 0) {
2303 error = EINVAL;
2304 break;
2305 }
2306 error = ugen_fs_uninit(f);
2307 break;
2308
2309 default:
2310 mtx_lock(f->priv_mtx);
2311 error = ugen_iface_ioctl(f, cmd, addr, fflags);
2312 mtx_unlock(f->priv_mtx);
2313 break;
2314 }
2315 DPRINTFN(6, "error=%d\n", error);
2316 return (error);
2317 }
2318
2319 static void
2320 ugen_ctrl_fs_callback(struct usb_xfer *xfer, usb_error_t error)
2321 {
2322 ; /* workaround for a bug in "indent" */
2323
2324 DPRINTF("st=%u alen=%u aframes=%u\n",
2325 USB_GET_STATE(xfer), xfer->actlen, xfer->aframes);
2326
2327 switch (USB_GET_STATE(xfer)) {
2328 case USB_ST_SETUP:
2329 usbd_transfer_submit(xfer);
2330 break;
2331 default:
2332 ugen_fs_set_complete(xfer->priv_sc, USB_P2U(xfer->priv_fifo));
2333 break;
2334 }
2335 }
2336 #endif /* USB_HAVE_UGEN */
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