1 /* $FreeBSD: releng/10.4/sys/dev/usb/usb_generic.c 305734 2016-09-12 10:17:25Z 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 static int
719 ugen_get_sdesc(struct usb_fifo *f, struct usb_gen_descriptor *ugd)
720 {
721 void *ptr;
722 uint16_t size;
723 int error;
724 uint8_t do_unlock;
725
726 /* Protect scratch area */
727 do_unlock = usbd_ctrl_lock(f->udev);
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 if (do_unlock)
749 usbd_ctrl_unlock(f->udev);
750
751 return (error);
752 }
753
754 /*------------------------------------------------------------------------*
755 * ugen_get_iface_driver
756 *
757 * This function generates an USB interface description for userland.
758 *
759 * Returns:
760 * 0: Success
761 * Else: Failure
762 *------------------------------------------------------------------------*/
763 static int
764 ugen_get_iface_driver(struct usb_fifo *f, struct usb_gen_descriptor *ugd)
765 {
766 struct usb_device *udev = f->udev;
767 struct usb_interface *iface;
768 const char *ptr;
769 const char *desc;
770 unsigned int len;
771 unsigned int maxlen;
772 char buf[128];
773 int error;
774
775 DPRINTFN(6, "\n");
776
777 if ((ugd->ugd_data == NULL) || (ugd->ugd_maxlen == 0)) {
778 /* userland pointer should not be zero */
779 return (EINVAL);
780 }
781
782 iface = usbd_get_iface(udev, ugd->ugd_iface_index);
783 if ((iface == NULL) || (iface->idesc == NULL)) {
784 /* invalid interface index */
785 return (EINVAL);
786 }
787
788 /* read out device nameunit string, if any */
789 if ((iface->subdev != NULL) &&
790 device_is_attached(iface->subdev) &&
791 (ptr = device_get_nameunit(iface->subdev)) &&
792 (desc = device_get_desc(iface->subdev))) {
793
794 /* print description */
795 snprintf(buf, sizeof(buf), "%s: <%s>", ptr, desc);
796
797 /* range checks */
798 maxlen = ugd->ugd_maxlen - 1;
799 len = strlen(buf);
800 if (len > maxlen)
801 len = maxlen;
802
803 /* update actual length, including terminating zero */
804 ugd->ugd_actlen = len + 1;
805
806 /* copy out interface description */
807 error = copyout(buf, ugd->ugd_data, ugd->ugd_actlen);
808 } else {
809 /* zero length string is default */
810 error = copyout("", ugd->ugd_data, 1);
811 }
812 return (error);
813 }
814
815 /*------------------------------------------------------------------------*
816 * usb_gen_fill_deviceinfo
817 *
818 * This function dumps information about an USB device to the
819 * structure pointed to by the "di" argument.
820 *
821 * Returns:
822 * 0: Success
823 * Else: Failure
824 *------------------------------------------------------------------------*/
825 static int
826 usb_gen_fill_deviceinfo(struct usb_fifo *f, struct usb_device_info *di)
827 {
828 struct usb_device *udev;
829 struct usb_device *hub;
830
831 udev = f->udev;
832
833 bzero(di, sizeof(di[0]));
834
835 di->udi_bus = device_get_unit(udev->bus->bdev);
836 di->udi_addr = udev->address;
837 di->udi_index = udev->device_index;
838 strlcpy(di->udi_serial, usb_get_serial(udev), sizeof(di->udi_serial));
839 strlcpy(di->udi_vendor, usb_get_manufacturer(udev), sizeof(di->udi_vendor));
840 strlcpy(di->udi_product, usb_get_product(udev), sizeof(di->udi_product));
841 usb_printbcd(di->udi_release, sizeof(di->udi_release),
842 UGETW(udev->ddesc.bcdDevice));
843 di->udi_vendorNo = UGETW(udev->ddesc.idVendor);
844 di->udi_productNo = UGETW(udev->ddesc.idProduct);
845 di->udi_releaseNo = UGETW(udev->ddesc.bcdDevice);
846 di->udi_class = udev->ddesc.bDeviceClass;
847 di->udi_subclass = udev->ddesc.bDeviceSubClass;
848 di->udi_protocol = udev->ddesc.bDeviceProtocol;
849 di->udi_config_no = udev->curr_config_no;
850 di->udi_config_index = udev->curr_config_index;
851 di->udi_power = udev->flags.self_powered ? 0 : udev->power;
852 di->udi_speed = udev->speed;
853 di->udi_mode = udev->flags.usb_mode;
854 di->udi_power_mode = udev->power_mode;
855 di->udi_suspended = udev->flags.peer_suspended;
856
857 hub = udev->parent_hub;
858 if (hub) {
859 di->udi_hubaddr = hub->address;
860 di->udi_hubindex = hub->device_index;
861 di->udi_hubport = udev->port_no;
862 }
863 return (0);
864 }
865
866 /*------------------------------------------------------------------------*
867 * ugen_check_request
868 *
869 * Return values:
870 * 0: Access allowed
871 * Else: No access
872 *------------------------------------------------------------------------*/
873 static int
874 ugen_check_request(struct usb_device *udev, struct usb_device_request *req)
875 {
876 struct usb_endpoint *ep;
877 int error;
878
879 /*
880 * Avoid requests that would damage the bus integrity:
881 */
882 if (((req->bmRequestType == UT_WRITE_DEVICE) &&
883 (req->bRequest == UR_SET_ADDRESS)) ||
884 ((req->bmRequestType == UT_WRITE_DEVICE) &&
885 (req->bRequest == UR_SET_CONFIG)) ||
886 ((req->bmRequestType == UT_WRITE_INTERFACE) &&
887 (req->bRequest == UR_SET_INTERFACE))) {
888 /*
889 * These requests can be useful for testing USB drivers.
890 */
891 error = priv_check(curthread, PRIV_DRIVER);
892 if (error) {
893 return (error);
894 }
895 }
896 /*
897 * Special case - handle clearing of stall
898 */
899 if (req->bmRequestType == UT_WRITE_ENDPOINT) {
900
901 ep = usbd_get_ep_by_addr(udev, req->wIndex[0]);
902 if (ep == NULL) {
903 return (EINVAL);
904 }
905 if ((req->bRequest == UR_CLEAR_FEATURE) &&
906 (UGETW(req->wValue) == UF_ENDPOINT_HALT)) {
907 usbd_clear_data_toggle(udev, ep);
908 }
909 }
910 /* TODO: add more checks to verify the interface index */
911
912 return (0);
913 }
914
915 int
916 ugen_do_request(struct usb_fifo *f, struct usb_ctl_request *ur)
917 {
918 int error;
919 uint16_t len;
920 uint16_t actlen;
921
922 if (ugen_check_request(f->udev, &ur->ucr_request)) {
923 return (EPERM);
924 }
925 len = UGETW(ur->ucr_request.wLength);
926
927 /* check if "ucr_data" is valid */
928 if (len != 0) {
929 if (ur->ucr_data == NULL) {
930 return (EFAULT);
931 }
932 }
933 /* do the USB request */
934 error = usbd_do_request_flags
935 (f->udev, NULL, &ur->ucr_request, ur->ucr_data,
936 (ur->ucr_flags & USB_SHORT_XFER_OK) |
937 USB_USER_DATA_PTR, &actlen,
938 USB_DEFAULT_TIMEOUT);
939
940 ur->ucr_actlen = actlen;
941
942 if (error) {
943 error = EIO;
944 }
945 return (error);
946 }
947
948 /*------------------------------------------------------------------------
949 * ugen_re_enumerate
950 *------------------------------------------------------------------------*/
951 static int
952 ugen_re_enumerate(struct usb_fifo *f)
953 {
954 struct usb_device *udev = f->udev;
955 int error;
956
957 /*
958 * This request can be useful for testing USB drivers:
959 */
960 error = priv_check(curthread, PRIV_DRIVER);
961 if (error) {
962 return (error);
963 }
964 if (udev->flags.usb_mode != USB_MODE_HOST) {
965 /* not possible in device side mode */
966 DPRINTFN(6, "device mode\n");
967 return (ENOTTY);
968 }
969 /* make sure all FIFO's are gone */
970 /* else there can be a deadlock */
971 if (ugen_fs_uninit(f)) {
972 /* ignore any errors */
973 DPRINTFN(6, "no FIFOs\n");
974 }
975 /* start re-enumeration of device */
976 usbd_start_re_enumerate(udev);
977 return (0);
978 }
979
980 int
981 ugen_fs_uninit(struct usb_fifo *f)
982 {
983 if (f->fs_xfer == NULL) {
984 return (EINVAL);
985 }
986 usbd_transfer_unsetup(f->fs_xfer, f->fs_ep_max);
987 free(f->fs_xfer, M_USB);
988 f->fs_xfer = NULL;
989 f->fs_ep_max = 0;
990 f->fs_ep_ptr = NULL;
991 f->flag_iscomplete = 0;
992 usb_fifo_free_buffer(f);
993 return (0);
994 }
995
996 static uint8_t
997 ugen_fs_get_complete(struct usb_fifo *f, uint8_t *pindex)
998 {
999 struct usb_mbuf *m;
1000
1001 USB_IF_DEQUEUE(&f->used_q, m);
1002
1003 if (m) {
1004 *pindex = *((uint8_t *)(m->cur_data_ptr));
1005
1006 USB_IF_ENQUEUE(&f->free_q, m);
1007
1008 return (0); /* success */
1009 } else {
1010
1011 *pindex = 0; /* fix compiler warning */
1012
1013 f->flag_iscomplete = 0;
1014 }
1015 return (1); /* failure */
1016 }
1017
1018 static void
1019 ugen_fs_set_complete(struct usb_fifo *f, uint8_t index)
1020 {
1021 struct usb_mbuf *m;
1022
1023 USB_IF_DEQUEUE(&f->free_q, m);
1024
1025 if (m == NULL) {
1026 /* can happen during close */
1027 DPRINTF("out of buffers\n");
1028 return;
1029 }
1030 USB_MBUF_RESET(m);
1031
1032 *((uint8_t *)(m->cur_data_ptr)) = index;
1033
1034 USB_IF_ENQUEUE(&f->used_q, m);
1035
1036 f->flag_iscomplete = 1;
1037
1038 usb_fifo_wakeup(f);
1039 }
1040
1041 static int
1042 ugen_fs_copy_in(struct usb_fifo *f, uint8_t ep_index)
1043 {
1044 struct usb_device_request *req;
1045 struct usb_xfer *xfer;
1046 struct usb_fs_endpoint fs_ep;
1047 void *uaddr; /* userland pointer */
1048 void *kaddr;
1049 usb_frlength_t offset;
1050 usb_frlength_t rem;
1051 usb_frcount_t n;
1052 uint32_t length;
1053 int error;
1054 uint8_t isread;
1055
1056 if (ep_index >= f->fs_ep_max) {
1057 return (EINVAL);
1058 }
1059 xfer = f->fs_xfer[ep_index];
1060 if (xfer == NULL) {
1061 return (EINVAL);
1062 }
1063 mtx_lock(f->priv_mtx);
1064 if (usbd_transfer_pending(xfer)) {
1065 mtx_unlock(f->priv_mtx);
1066 return (EBUSY); /* should not happen */
1067 }
1068 mtx_unlock(f->priv_mtx);
1069
1070 error = copyin(f->fs_ep_ptr +
1071 ep_index, &fs_ep, sizeof(fs_ep));
1072 if (error) {
1073 return (error);
1074 }
1075 /* security checks */
1076
1077 if (fs_ep.nFrames > xfer->max_frame_count) {
1078 xfer->error = USB_ERR_INVAL;
1079 goto complete;
1080 }
1081 if (fs_ep.nFrames == 0) {
1082 xfer->error = USB_ERR_INVAL;
1083 goto complete;
1084 }
1085 error = copyin(fs_ep.ppBuffer,
1086 &uaddr, sizeof(uaddr));
1087 if (error) {
1088 return (error);
1089 }
1090 /* reset first frame */
1091 usbd_xfer_set_frame_offset(xfer, 0, 0);
1092
1093 if (xfer->flags_int.control_xfr) {
1094
1095 req = xfer->frbuffers[0].buffer;
1096
1097 error = copyin(fs_ep.pLength,
1098 &length, sizeof(length));
1099 if (error) {
1100 return (error);
1101 }
1102 if (length != sizeof(*req)) {
1103 xfer->error = USB_ERR_INVAL;
1104 goto complete;
1105 }
1106 if (length != 0) {
1107 error = copyin(uaddr, req, length);
1108 if (error) {
1109 return (error);
1110 }
1111 }
1112 if (ugen_check_request(f->udev, req)) {
1113 xfer->error = USB_ERR_INVAL;
1114 goto complete;
1115 }
1116 usbd_xfer_set_frame_len(xfer, 0, length);
1117
1118 /* Host mode only ! */
1119 if ((req->bmRequestType &
1120 (UT_READ | UT_WRITE)) == UT_READ) {
1121 isread = 1;
1122 } else {
1123 isread = 0;
1124 }
1125 n = 1;
1126 offset = sizeof(*req);
1127
1128 } else {
1129 /* Device and Host mode */
1130 if (USB_GET_DATA_ISREAD(xfer)) {
1131 isread = 1;
1132 } else {
1133 isread = 0;
1134 }
1135 n = 0;
1136 offset = 0;
1137 }
1138
1139 rem = usbd_xfer_max_len(xfer);
1140 xfer->nframes = fs_ep.nFrames;
1141 xfer->timeout = fs_ep.timeout;
1142 if (xfer->timeout > 65535) {
1143 xfer->timeout = 65535;
1144 }
1145 if (fs_ep.flags & USB_FS_FLAG_SINGLE_SHORT_OK)
1146 xfer->flags.short_xfer_ok = 1;
1147 else
1148 xfer->flags.short_xfer_ok = 0;
1149
1150 if (fs_ep.flags & USB_FS_FLAG_MULTI_SHORT_OK)
1151 xfer->flags.short_frames_ok = 1;
1152 else
1153 xfer->flags.short_frames_ok = 0;
1154
1155 if (fs_ep.flags & USB_FS_FLAG_FORCE_SHORT)
1156 xfer->flags.force_short_xfer = 1;
1157 else
1158 xfer->flags.force_short_xfer = 0;
1159
1160 if (fs_ep.flags & USB_FS_FLAG_CLEAR_STALL)
1161 usbd_xfer_set_stall(xfer);
1162 else
1163 xfer->flags.stall_pipe = 0;
1164
1165 for (; n != xfer->nframes; n++) {
1166
1167 error = copyin(fs_ep.pLength + n,
1168 &length, sizeof(length));
1169 if (error) {
1170 break;
1171 }
1172 usbd_xfer_set_frame_len(xfer, n, length);
1173
1174 if (length > rem) {
1175 xfer->error = USB_ERR_INVAL;
1176 goto complete;
1177 }
1178 rem -= length;
1179
1180 if (!isread) {
1181
1182 /* we need to know the source buffer */
1183 error = copyin(fs_ep.ppBuffer + n,
1184 &uaddr, sizeof(uaddr));
1185 if (error) {
1186 break;
1187 }
1188 if (xfer->flags_int.isochronous_xfr) {
1189 /* get kernel buffer address */
1190 kaddr = xfer->frbuffers[0].buffer;
1191 kaddr = USB_ADD_BYTES(kaddr, offset);
1192 } else {
1193 /* set current frame offset */
1194 usbd_xfer_set_frame_offset(xfer, offset, n);
1195
1196 /* get kernel buffer address */
1197 kaddr = xfer->frbuffers[n].buffer;
1198 }
1199
1200 /* move data */
1201 error = copyin(uaddr, kaddr, length);
1202 if (error) {
1203 break;
1204 }
1205 }
1206 offset += length;
1207 }
1208 return (error);
1209
1210 complete:
1211 mtx_lock(f->priv_mtx);
1212 ugen_fs_set_complete(f, ep_index);
1213 mtx_unlock(f->priv_mtx);
1214 return (0);
1215 }
1216
1217 static int
1218 ugen_fs_copy_out(struct usb_fifo *f, uint8_t ep_index)
1219 {
1220 struct usb_device_request *req;
1221 struct usb_xfer *xfer;
1222 struct usb_fs_endpoint fs_ep;
1223 struct usb_fs_endpoint *fs_ep_uptr; /* userland ptr */
1224 void *uaddr; /* userland ptr */
1225 void *kaddr;
1226 usb_frlength_t offset;
1227 usb_frlength_t rem;
1228 usb_frcount_t n;
1229 uint32_t length;
1230 uint32_t temp;
1231 int error;
1232 uint8_t isread;
1233
1234 if (ep_index >= f->fs_ep_max)
1235 return (EINVAL);
1236
1237 xfer = f->fs_xfer[ep_index];
1238 if (xfer == NULL)
1239 return (EINVAL);
1240
1241 mtx_lock(f->priv_mtx);
1242 if (usbd_transfer_pending(xfer)) {
1243 mtx_unlock(f->priv_mtx);
1244 return (EBUSY); /* should not happen */
1245 }
1246 mtx_unlock(f->priv_mtx);
1247
1248 fs_ep_uptr = f->fs_ep_ptr + ep_index;
1249 error = copyin(fs_ep_uptr, &fs_ep, sizeof(fs_ep));
1250 if (error) {
1251 return (error);
1252 }
1253 fs_ep.status = xfer->error;
1254 fs_ep.aFrames = xfer->aframes;
1255 fs_ep.isoc_time_complete = xfer->isoc_time_complete;
1256 if (xfer->error) {
1257 goto complete;
1258 }
1259 if (xfer->flags_int.control_xfr) {
1260 req = xfer->frbuffers[0].buffer;
1261
1262 /* Host mode only ! */
1263 if ((req->bmRequestType & (UT_READ | UT_WRITE)) == UT_READ) {
1264 isread = 1;
1265 } else {
1266 isread = 0;
1267 }
1268 if (xfer->nframes == 0)
1269 n = 0; /* should never happen */
1270 else
1271 n = 1;
1272 } else {
1273 /* Device and Host mode */
1274 if (USB_GET_DATA_ISREAD(xfer)) {
1275 isread = 1;
1276 } else {
1277 isread = 0;
1278 }
1279 n = 0;
1280 }
1281
1282 /* Update lengths and copy out data */
1283
1284 rem = usbd_xfer_max_len(xfer);
1285 offset = 0;
1286
1287 for (; n != xfer->nframes; n++) {
1288
1289 /* get initial length into "temp" */
1290 error = copyin(fs_ep.pLength + n,
1291 &temp, sizeof(temp));
1292 if (error) {
1293 return (error);
1294 }
1295 if (temp > rem) {
1296 /* the userland length has been corrupted */
1297 DPRINTF("corrupt userland length "
1298 "%u > %u\n", temp, rem);
1299 fs_ep.status = USB_ERR_INVAL;
1300 goto complete;
1301 }
1302 rem -= temp;
1303
1304 /* get actual transfer length */
1305 length = xfer->frlengths[n];
1306 if (length > temp) {
1307 /* data overflow */
1308 fs_ep.status = USB_ERR_INVAL;
1309 DPRINTF("data overflow %u > %u\n",
1310 length, temp);
1311 goto complete;
1312 }
1313 if (isread) {
1314
1315 /* we need to know the destination buffer */
1316 error = copyin(fs_ep.ppBuffer + n,
1317 &uaddr, sizeof(uaddr));
1318 if (error) {
1319 return (error);
1320 }
1321 if (xfer->flags_int.isochronous_xfr) {
1322 /* only one frame buffer */
1323 kaddr = USB_ADD_BYTES(
1324 xfer->frbuffers[0].buffer, offset);
1325 } else {
1326 /* multiple frame buffers */
1327 kaddr = xfer->frbuffers[n].buffer;
1328 }
1329
1330 /* move data */
1331 error = copyout(kaddr, uaddr, length);
1332 if (error) {
1333 return (error);
1334 }
1335 }
1336 /*
1337 * Update offset according to initial length, which is
1338 * needed by isochronous transfers!
1339 */
1340 offset += temp;
1341
1342 /* update length */
1343 error = copyout(&length,
1344 fs_ep.pLength + n, sizeof(length));
1345 if (error) {
1346 return (error);
1347 }
1348 }
1349
1350 complete:
1351 /* update "aFrames" */
1352 error = copyout(&fs_ep.aFrames, &fs_ep_uptr->aFrames,
1353 sizeof(fs_ep.aFrames));
1354 if (error)
1355 goto done;
1356
1357 /* update "isoc_time_complete" */
1358 error = copyout(&fs_ep.isoc_time_complete,
1359 &fs_ep_uptr->isoc_time_complete,
1360 sizeof(fs_ep.isoc_time_complete));
1361 if (error)
1362 goto done;
1363 /* update "status" */
1364 error = copyout(&fs_ep.status, &fs_ep_uptr->status,
1365 sizeof(fs_ep.status));
1366 done:
1367 return (error);
1368 }
1369
1370 static uint8_t
1371 ugen_fifo_in_use(struct usb_fifo *f, int fflags)
1372 {
1373 struct usb_fifo *f_rx;
1374 struct usb_fifo *f_tx;
1375
1376 f_rx = f->udev->fifo[(f->fifo_index & ~1) + USB_FIFO_RX];
1377 f_tx = f->udev->fifo[(f->fifo_index & ~1) + USB_FIFO_TX];
1378
1379 if ((fflags & FREAD) && f_rx &&
1380 (f_rx->xfer[0] || f_rx->xfer[1])) {
1381 return (1); /* RX FIFO in use */
1382 }
1383 if ((fflags & FWRITE) && f_tx &&
1384 (f_tx->xfer[0] || f_tx->xfer[1])) {
1385 return (1); /* TX FIFO in use */
1386 }
1387 return (0); /* not in use */
1388 }
1389
1390 static int
1391 ugen_ioctl(struct usb_fifo *f, u_long cmd, void *addr, int fflags)
1392 {
1393 struct usb_config usb_config[1];
1394 struct usb_device_request req;
1395 union {
1396 struct usb_fs_complete *pcomp;
1397 struct usb_fs_start *pstart;
1398 struct usb_fs_stop *pstop;
1399 struct usb_fs_open *popen;
1400 struct usb_fs_open_stream *popen_stream;
1401 struct usb_fs_close *pclose;
1402 struct usb_fs_clear_stall_sync *pstall;
1403 void *addr;
1404 } u;
1405 struct usb_endpoint *ep;
1406 struct usb_endpoint_descriptor *ed;
1407 struct usb_xfer *xfer;
1408 int error = 0;
1409 uint8_t iface_index;
1410 uint8_t isread;
1411 uint8_t ep_index;
1412 uint8_t pre_scale;
1413
1414 u.addr = addr;
1415
1416 DPRINTFN(6, "cmd=0x%08lx\n", cmd);
1417
1418 switch (cmd) {
1419 case USB_FS_COMPLETE:
1420 mtx_lock(f->priv_mtx);
1421 error = ugen_fs_get_complete(f, &ep_index);
1422 mtx_unlock(f->priv_mtx);
1423
1424 if (error) {
1425 error = EBUSY;
1426 break;
1427 }
1428 u.pcomp->ep_index = ep_index;
1429 error = ugen_fs_copy_out(f, u.pcomp->ep_index);
1430 break;
1431
1432 case USB_FS_START:
1433 error = ugen_fs_copy_in(f, u.pstart->ep_index);
1434 if (error)
1435 break;
1436 mtx_lock(f->priv_mtx);
1437 xfer = f->fs_xfer[u.pstart->ep_index];
1438 usbd_transfer_start(xfer);
1439 mtx_unlock(f->priv_mtx);
1440 break;
1441
1442 case USB_FS_STOP:
1443 if (u.pstop->ep_index >= f->fs_ep_max) {
1444 error = EINVAL;
1445 break;
1446 }
1447 mtx_lock(f->priv_mtx);
1448 xfer = f->fs_xfer[u.pstart->ep_index];
1449 if (usbd_transfer_pending(xfer)) {
1450 usbd_transfer_stop(xfer);
1451 /*
1452 * Check if the USB transfer was stopped
1453 * before it was even started. Else a cancel
1454 * callback will be pending.
1455 */
1456 if (!xfer->flags_int.transferring) {
1457 ugen_fs_set_complete(xfer->priv_sc,
1458 USB_P2U(xfer->priv_fifo));
1459 }
1460 }
1461 mtx_unlock(f->priv_mtx);
1462 break;
1463
1464 case USB_FS_OPEN:
1465 case USB_FS_OPEN_STREAM:
1466 if (u.popen->ep_index >= f->fs_ep_max) {
1467 error = EINVAL;
1468 break;
1469 }
1470 if (f->fs_xfer[u.popen->ep_index] != NULL) {
1471 error = EBUSY;
1472 break;
1473 }
1474 if (u.popen->max_bufsize > USB_FS_MAX_BUFSIZE) {
1475 u.popen->max_bufsize = USB_FS_MAX_BUFSIZE;
1476 }
1477 if (u.popen->max_frames & USB_FS_MAX_FRAMES_PRE_SCALE) {
1478 pre_scale = 1;
1479 u.popen->max_frames &= ~USB_FS_MAX_FRAMES_PRE_SCALE;
1480 } else {
1481 pre_scale = 0;
1482 }
1483 if (u.popen->max_frames > USB_FS_MAX_FRAMES) {
1484 u.popen->max_frames = USB_FS_MAX_FRAMES;
1485 break;
1486 }
1487 if (u.popen->max_frames == 0) {
1488 error = EINVAL;
1489 break;
1490 }
1491 ep = usbd_get_ep_by_addr(f->udev, u.popen->ep_no);
1492 if (ep == NULL) {
1493 error = EINVAL;
1494 break;
1495 }
1496 ed = ep->edesc;
1497 if (ed == NULL) {
1498 error = ENXIO;
1499 break;
1500 }
1501 iface_index = ep->iface_index;
1502
1503 memset(usb_config, 0, sizeof(usb_config));
1504
1505 usb_config[0].type = ed->bmAttributes & UE_XFERTYPE;
1506 usb_config[0].endpoint = ed->bEndpointAddress & UE_ADDR;
1507 usb_config[0].direction = ed->bEndpointAddress & (UE_DIR_OUT | UE_DIR_IN);
1508 usb_config[0].interval = USB_DEFAULT_INTERVAL;
1509 usb_config[0].flags.proxy_buffer = 1;
1510 if (pre_scale != 0)
1511 usb_config[0].flags.pre_scale_frames = 1;
1512 usb_config[0].callback = &ugen_ctrl_fs_callback;
1513 usb_config[0].timeout = 0; /* no timeout */
1514 usb_config[0].frames = u.popen->max_frames;
1515 usb_config[0].bufsize = u.popen->max_bufsize;
1516 usb_config[0].usb_mode = USB_MODE_DUAL; /* both modes */
1517 if (cmd == USB_FS_OPEN_STREAM)
1518 usb_config[0].stream_id = u.popen_stream->stream_id;
1519
1520 if (usb_config[0].type == UE_CONTROL) {
1521 if (f->udev->flags.usb_mode != USB_MODE_HOST) {
1522 error = EINVAL;
1523 break;
1524 }
1525 } else {
1526
1527 isread = ((usb_config[0].endpoint &
1528 (UE_DIR_IN | UE_DIR_OUT)) == UE_DIR_IN);
1529
1530 if (f->udev->flags.usb_mode != USB_MODE_HOST) {
1531 isread = !isread;
1532 }
1533 /* check permissions */
1534 if (isread) {
1535 if (!(fflags & FREAD)) {
1536 error = EPERM;
1537 break;
1538 }
1539 } else {
1540 if (!(fflags & FWRITE)) {
1541 error = EPERM;
1542 break;
1543 }
1544 }
1545 }
1546 error = usbd_transfer_setup(f->udev, &iface_index,
1547 f->fs_xfer + u.popen->ep_index, usb_config, 1,
1548 f, f->priv_mtx);
1549 if (error == 0) {
1550 /* update maximums */
1551 u.popen->max_packet_length =
1552 f->fs_xfer[u.popen->ep_index]->max_frame_size;
1553 u.popen->max_bufsize =
1554 f->fs_xfer[u.popen->ep_index]->max_data_length;
1555 /* update number of frames */
1556 u.popen->max_frames =
1557 f->fs_xfer[u.popen->ep_index]->nframes;
1558 /* store index of endpoint */
1559 f->fs_xfer[u.popen->ep_index]->priv_fifo =
1560 ((uint8_t *)0) + u.popen->ep_index;
1561 } else {
1562 error = ENOMEM;
1563 }
1564 break;
1565
1566 case USB_FS_CLOSE:
1567 if (u.pclose->ep_index >= f->fs_ep_max) {
1568 error = EINVAL;
1569 break;
1570 }
1571 if (f->fs_xfer[u.pclose->ep_index] == NULL) {
1572 error = EINVAL;
1573 break;
1574 }
1575 usbd_transfer_unsetup(f->fs_xfer + u.pclose->ep_index, 1);
1576 break;
1577
1578 case USB_FS_CLEAR_STALL_SYNC:
1579 if (u.pstall->ep_index >= f->fs_ep_max) {
1580 error = EINVAL;
1581 break;
1582 }
1583 if (f->fs_xfer[u.pstall->ep_index] == NULL) {
1584 error = EINVAL;
1585 break;
1586 }
1587 if (f->udev->flags.usb_mode != USB_MODE_HOST) {
1588 error = EINVAL;
1589 break;
1590 }
1591 mtx_lock(f->priv_mtx);
1592 error = usbd_transfer_pending(f->fs_xfer[u.pstall->ep_index]);
1593 mtx_unlock(f->priv_mtx);
1594
1595 if (error) {
1596 return (EBUSY);
1597 }
1598 ep = f->fs_xfer[u.pstall->ep_index]->endpoint;
1599
1600 /* setup a clear-stall packet */
1601 req.bmRequestType = UT_WRITE_ENDPOINT;
1602 req.bRequest = UR_CLEAR_FEATURE;
1603 USETW(req.wValue, UF_ENDPOINT_HALT);
1604 req.wIndex[0] = ep->edesc->bEndpointAddress;
1605 req.wIndex[1] = 0;
1606 USETW(req.wLength, 0);
1607
1608 error = usbd_do_request(f->udev, NULL, &req, NULL);
1609 if (error == 0) {
1610 usbd_clear_data_toggle(f->udev, ep);
1611 } else {
1612 error = ENXIO;
1613 }
1614 break;
1615
1616 default:
1617 error = ENOIOCTL;
1618 break;
1619 }
1620
1621 DPRINTFN(6, "error=%d\n", error);
1622
1623 return (error);
1624 }
1625
1626 static int
1627 ugen_set_short_xfer(struct usb_fifo *f, void *addr)
1628 {
1629 uint8_t t;
1630
1631 if (*(int *)addr)
1632 t = 1;
1633 else
1634 t = 0;
1635
1636 if (f->flag_short == t) {
1637 /* same value like before - accept */
1638 return (0);
1639 }
1640 if (f->xfer[0] || f->xfer[1]) {
1641 /* cannot change this during transfer */
1642 return (EBUSY);
1643 }
1644 f->flag_short = t;
1645 return (0);
1646 }
1647
1648 static int
1649 ugen_set_timeout(struct usb_fifo *f, void *addr)
1650 {
1651 f->timeout = *(int *)addr;
1652 if (f->timeout > 65535) {
1653 /* limit user input */
1654 f->timeout = 65535;
1655 }
1656 return (0);
1657 }
1658
1659 static int
1660 ugen_get_frame_size(struct usb_fifo *f, void *addr)
1661 {
1662 if (f->xfer[0]) {
1663 *(int *)addr = f->xfer[0]->max_frame_size;
1664 } else {
1665 return (EINVAL);
1666 }
1667 return (0);
1668 }
1669
1670 static int
1671 ugen_set_buffer_size(struct usb_fifo *f, void *addr)
1672 {
1673 usb_frlength_t t;
1674
1675 if (*(int *)addr < 0)
1676 t = 0; /* use "wMaxPacketSize" */
1677 else if (*(int *)addr < (256 * 1024))
1678 t = *(int *)addr;
1679 else
1680 t = 256 * 1024;
1681
1682 if (f->bufsize == t) {
1683 /* same value like before - accept */
1684 return (0);
1685 }
1686 if (f->xfer[0] || f->xfer[1]) {
1687 /* cannot change this during transfer */
1688 return (EBUSY);
1689 }
1690 f->bufsize = t;
1691 return (0);
1692 }
1693
1694 static int
1695 ugen_get_buffer_size(struct usb_fifo *f, void *addr)
1696 {
1697 *(int *)addr = f->bufsize;
1698 return (0);
1699 }
1700
1701 static int
1702 ugen_get_iface_desc(struct usb_fifo *f,
1703 struct usb_interface_descriptor *idesc)
1704 {
1705 struct usb_interface *iface;
1706
1707 iface = usbd_get_iface(f->udev, f->iface_index);
1708 if (iface && iface->idesc) {
1709 *idesc = *(iface->idesc);
1710 } else {
1711 return (EIO);
1712 }
1713 return (0);
1714 }
1715
1716 static int
1717 ugen_get_endpoint_desc(struct usb_fifo *f,
1718 struct usb_endpoint_descriptor *ed)
1719 {
1720 struct usb_endpoint *ep;
1721
1722 ep = usb_fifo_softc(f);
1723
1724 if (ep && ep->edesc) {
1725 *ed = *ep->edesc;
1726 } else {
1727 return (EINVAL);
1728 }
1729 return (0);
1730 }
1731
1732 static int
1733 ugen_set_power_mode(struct usb_fifo *f, int mode)
1734 {
1735 struct usb_device *udev = f->udev;
1736 int err;
1737 uint8_t old_mode;
1738
1739 if ((udev == NULL) ||
1740 (udev->parent_hub == NULL)) {
1741 return (EINVAL);
1742 }
1743 err = priv_check(curthread, PRIV_DRIVER);
1744 if (err)
1745 return (err);
1746
1747 /* get old power mode */
1748 old_mode = udev->power_mode;
1749
1750 /* if no change, then just return */
1751 if (old_mode == mode)
1752 return (0);
1753
1754 switch (mode) {
1755 case USB_POWER_MODE_OFF:
1756 if (udev->flags.usb_mode == USB_MODE_HOST &&
1757 udev->re_enumerate_wait == USB_RE_ENUM_DONE) {
1758 udev->re_enumerate_wait = USB_RE_ENUM_PWR_OFF;
1759 }
1760 /* set power mode will wake up the explore thread */
1761 break;
1762
1763 case USB_POWER_MODE_ON:
1764 case USB_POWER_MODE_SAVE:
1765 break;
1766
1767 case USB_POWER_MODE_RESUME:
1768 #if USB_HAVE_POWERD
1769 /* let USB-powerd handle resume */
1770 USB_BUS_LOCK(udev->bus);
1771 udev->pwr_save.write_refs++;
1772 udev->pwr_save.last_xfer_time = ticks;
1773 USB_BUS_UNLOCK(udev->bus);
1774
1775 /* set new power mode */
1776 usbd_set_power_mode(udev, USB_POWER_MODE_SAVE);
1777
1778 /* wait for resume to complete */
1779 usb_pause_mtx(NULL, hz / 4);
1780
1781 /* clear write reference */
1782 USB_BUS_LOCK(udev->bus);
1783 udev->pwr_save.write_refs--;
1784 USB_BUS_UNLOCK(udev->bus);
1785 #endif
1786 mode = USB_POWER_MODE_SAVE;
1787 break;
1788
1789 case USB_POWER_MODE_SUSPEND:
1790 #if USB_HAVE_POWERD
1791 /* let USB-powerd handle suspend */
1792 USB_BUS_LOCK(udev->bus);
1793 udev->pwr_save.last_xfer_time = ticks - (256 * hz);
1794 USB_BUS_UNLOCK(udev->bus);
1795 #endif
1796 mode = USB_POWER_MODE_SAVE;
1797 break;
1798
1799 default:
1800 return (EINVAL);
1801 }
1802
1803 if (err)
1804 return (ENXIO); /* I/O failure */
1805
1806 /* if we are powered off we need to re-enumerate first */
1807 if (old_mode == USB_POWER_MODE_OFF) {
1808 if (udev->flags.usb_mode == USB_MODE_HOST &&
1809 udev->re_enumerate_wait == USB_RE_ENUM_DONE) {
1810 udev->re_enumerate_wait = USB_RE_ENUM_START;
1811 }
1812 /* set power mode will wake up the explore thread */
1813 }
1814
1815 /* set new power mode */
1816 usbd_set_power_mode(udev, mode);
1817
1818 return (0); /* success */
1819 }
1820
1821 static int
1822 ugen_get_power_mode(struct usb_fifo *f)
1823 {
1824 struct usb_device *udev = f->udev;
1825
1826 if (udev == NULL)
1827 return (USB_POWER_MODE_ON);
1828
1829 return (udev->power_mode);
1830 }
1831
1832 static int
1833 ugen_get_port_path(struct usb_fifo *f, struct usb_device_port_path *dpp)
1834 {
1835 struct usb_device *udev = f->udev;
1836 struct usb_device *next;
1837 unsigned int nlevel = 0;
1838
1839 if (udev == NULL)
1840 goto error;
1841
1842 dpp->udp_bus = device_get_unit(udev->bus->bdev);
1843 dpp->udp_index = udev->device_index;
1844
1845 /* count port levels */
1846 next = udev;
1847 while (next->parent_hub != NULL) {
1848 nlevel++;
1849 next = next->parent_hub;
1850 }
1851
1852 /* check if too many levels */
1853 if (nlevel > USB_DEVICE_PORT_PATH_MAX)
1854 goto error;
1855
1856 /* store total level of ports */
1857 dpp->udp_port_level = nlevel;
1858
1859 /* store port index array */
1860 next = udev;
1861 while (next->parent_hub != NULL) {
1862 dpp->udp_port_no[--nlevel] = next->port_no;
1863 next = next->parent_hub;
1864 }
1865 return (0); /* success */
1866
1867 error:
1868 return (EINVAL); /* failure */
1869 }
1870
1871 static int
1872 ugen_get_power_usage(struct usb_fifo *f)
1873 {
1874 struct usb_device *udev = f->udev;
1875
1876 if (udev == NULL)
1877 return (0);
1878
1879 return (udev->power);
1880 }
1881
1882 static int
1883 ugen_do_port_feature(struct usb_fifo *f, uint8_t port_no,
1884 uint8_t set, uint16_t feature)
1885 {
1886 struct usb_device *udev = f->udev;
1887 struct usb_hub *hub;
1888 int err;
1889
1890 err = priv_check(curthread, PRIV_DRIVER);
1891 if (err) {
1892 return (err);
1893 }
1894 if (port_no == 0) {
1895 return (EINVAL);
1896 }
1897 if ((udev == NULL) ||
1898 (udev->hub == NULL)) {
1899 return (EINVAL);
1900 }
1901 hub = udev->hub;
1902
1903 if (port_no > hub->nports) {
1904 return (EINVAL);
1905 }
1906 if (set)
1907 err = usbd_req_set_port_feature(udev,
1908 NULL, port_no, feature);
1909 else
1910 err = usbd_req_clear_port_feature(udev,
1911 NULL, port_no, feature);
1912
1913 if (err)
1914 return (ENXIO); /* failure */
1915
1916 return (0); /* success */
1917 }
1918
1919 static int
1920 ugen_iface_ioctl(struct usb_fifo *f, u_long cmd, void *addr, int fflags)
1921 {
1922 struct usb_fifo *f_rx;
1923 struct usb_fifo *f_tx;
1924 int error = 0;
1925
1926 f_rx = f->udev->fifo[(f->fifo_index & ~1) + USB_FIFO_RX];
1927 f_tx = f->udev->fifo[(f->fifo_index & ~1) + USB_FIFO_TX];
1928
1929 switch (cmd) {
1930 case USB_SET_RX_SHORT_XFER:
1931 if (fflags & FREAD) {
1932 error = ugen_set_short_xfer(f_rx, addr);
1933 } else {
1934 error = EINVAL;
1935 }
1936 break;
1937
1938 case USB_SET_TX_FORCE_SHORT:
1939 if (fflags & FWRITE) {
1940 error = ugen_set_short_xfer(f_tx, addr);
1941 } else {
1942 error = EINVAL;
1943 }
1944 break;
1945
1946 case USB_SET_RX_TIMEOUT:
1947 if (fflags & FREAD) {
1948 error = ugen_set_timeout(f_rx, addr);
1949 } else {
1950 error = EINVAL;
1951 }
1952 break;
1953
1954 case USB_SET_TX_TIMEOUT:
1955 if (fflags & FWRITE) {
1956 error = ugen_set_timeout(f_tx, addr);
1957 } else {
1958 error = EINVAL;
1959 }
1960 break;
1961
1962 case USB_GET_RX_FRAME_SIZE:
1963 if (fflags & FREAD) {
1964 error = ugen_get_frame_size(f_rx, addr);
1965 } else {
1966 error = EINVAL;
1967 }
1968 break;
1969
1970 case USB_GET_TX_FRAME_SIZE:
1971 if (fflags & FWRITE) {
1972 error = ugen_get_frame_size(f_tx, addr);
1973 } else {
1974 error = EINVAL;
1975 }
1976 break;
1977
1978 case USB_SET_RX_BUFFER_SIZE:
1979 if (fflags & FREAD) {
1980 error = ugen_set_buffer_size(f_rx, addr);
1981 } else {
1982 error = EINVAL;
1983 }
1984 break;
1985
1986 case USB_SET_TX_BUFFER_SIZE:
1987 if (fflags & FWRITE) {
1988 error = ugen_set_buffer_size(f_tx, addr);
1989 } else {
1990 error = EINVAL;
1991 }
1992 break;
1993
1994 case USB_GET_RX_BUFFER_SIZE:
1995 if (fflags & FREAD) {
1996 error = ugen_get_buffer_size(f_rx, addr);
1997 } else {
1998 error = EINVAL;
1999 }
2000 break;
2001
2002 case USB_GET_TX_BUFFER_SIZE:
2003 if (fflags & FWRITE) {
2004 error = ugen_get_buffer_size(f_tx, addr);
2005 } else {
2006 error = EINVAL;
2007 }
2008 break;
2009
2010 case USB_GET_RX_INTERFACE_DESC:
2011 if (fflags & FREAD) {
2012 error = ugen_get_iface_desc(f_rx, addr);
2013 } else {
2014 error = EINVAL;
2015 }
2016 break;
2017
2018 case USB_GET_TX_INTERFACE_DESC:
2019 if (fflags & FWRITE) {
2020 error = ugen_get_iface_desc(f_tx, addr);
2021 } else {
2022 error = EINVAL;
2023 }
2024 break;
2025
2026 case USB_GET_RX_ENDPOINT_DESC:
2027 if (fflags & FREAD) {
2028 error = ugen_get_endpoint_desc(f_rx, addr);
2029 } else {
2030 error = EINVAL;
2031 }
2032 break;
2033
2034 case USB_GET_TX_ENDPOINT_DESC:
2035 if (fflags & FWRITE) {
2036 error = ugen_get_endpoint_desc(f_tx, addr);
2037 } else {
2038 error = EINVAL;
2039 }
2040 break;
2041
2042 case USB_SET_RX_STALL_FLAG:
2043 if ((fflags & FREAD) && (*(int *)addr)) {
2044 f_rx->flag_stall = 1;
2045 }
2046 break;
2047
2048 case USB_SET_TX_STALL_FLAG:
2049 if ((fflags & FWRITE) && (*(int *)addr)) {
2050 f_tx->flag_stall = 1;
2051 }
2052 break;
2053
2054 default:
2055 error = ENOIOCTL;
2056 break;
2057 }
2058 return (error);
2059 }
2060
2061 static int
2062 ugen_ioctl_post(struct usb_fifo *f, u_long cmd, void *addr, int fflags)
2063 {
2064 union {
2065 struct usb_interface_descriptor *idesc;
2066 struct usb_alt_interface *ai;
2067 struct usb_device_descriptor *ddesc;
2068 struct usb_config_descriptor *cdesc;
2069 struct usb_device_stats *stat;
2070 struct usb_fs_init *pinit;
2071 struct usb_fs_uninit *puninit;
2072 struct usb_device_port_path *dpp;
2073 uint32_t *ptime;
2074 void *addr;
2075 int *pint;
2076 } u;
2077 struct usb_device_descriptor *dtemp;
2078 struct usb_config_descriptor *ctemp;
2079 struct usb_interface *iface;
2080 int error = 0;
2081 uint8_t n;
2082
2083 u.addr = addr;
2084
2085 DPRINTFN(6, "cmd=0x%08lx\n", cmd);
2086
2087 switch (cmd) {
2088 case USB_DISCOVER:
2089 usb_needs_explore_all();
2090 break;
2091
2092 case USB_SETDEBUG:
2093 if (!(fflags & FWRITE)) {
2094 error = EPERM;
2095 break;
2096 }
2097 usb_debug = *(int *)addr;
2098 break;
2099
2100 case USB_GET_CONFIG:
2101 *(int *)addr = f->udev->curr_config_index;
2102 break;
2103
2104 case USB_SET_CONFIG:
2105 if (!(fflags & FWRITE)) {
2106 error = EPERM;
2107 break;
2108 }
2109 error = ugen_set_config(f, *(int *)addr);
2110 break;
2111
2112 case USB_GET_ALTINTERFACE:
2113 iface = usbd_get_iface(f->udev,
2114 u.ai->uai_interface_index);
2115 if (iface && iface->idesc) {
2116 u.ai->uai_alt_index = iface->alt_index;
2117 } else {
2118 error = EINVAL;
2119 }
2120 break;
2121
2122 case USB_SET_ALTINTERFACE:
2123 if (!(fflags & FWRITE)) {
2124 error = EPERM;
2125 break;
2126 }
2127 error = ugen_set_interface(f,
2128 u.ai->uai_interface_index, u.ai->uai_alt_index);
2129 break;
2130
2131 case USB_GET_DEVICE_DESC:
2132 dtemp = usbd_get_device_descriptor(f->udev);
2133 if (!dtemp) {
2134 error = EIO;
2135 break;
2136 }
2137 *u.ddesc = *dtemp;
2138 break;
2139
2140 case USB_GET_CONFIG_DESC:
2141 ctemp = usbd_get_config_descriptor(f->udev);
2142 if (!ctemp) {
2143 error = EIO;
2144 break;
2145 }
2146 *u.cdesc = *ctemp;
2147 break;
2148
2149 case USB_GET_FULL_DESC:
2150 error = ugen_get_cdesc(f, addr);
2151 break;
2152
2153 case USB_GET_STRING_DESC:
2154 error = ugen_get_sdesc(f, addr);
2155 break;
2156
2157 case USB_GET_IFACE_DRIVER:
2158 error = ugen_get_iface_driver(f, addr);
2159 break;
2160
2161 case USB_REQUEST:
2162 case USB_DO_REQUEST:
2163 if (!(fflags & FWRITE)) {
2164 error = EPERM;
2165 break;
2166 }
2167 error = ugen_do_request(f, addr);
2168 break;
2169
2170 case USB_DEVICEINFO:
2171 case USB_GET_DEVICEINFO:
2172 error = usb_gen_fill_deviceinfo(f, addr);
2173 break;
2174
2175 case USB_DEVICESTATS:
2176 for (n = 0; n != 4; n++) {
2177
2178 u.stat->uds_requests_fail[n] =
2179 f->udev->bus->stats_err.uds_requests[n];
2180
2181 u.stat->uds_requests_ok[n] =
2182 f->udev->bus->stats_ok.uds_requests[n];
2183 }
2184 break;
2185
2186 case USB_DEVICEENUMERATE:
2187 error = ugen_re_enumerate(f);
2188 break;
2189
2190 case USB_GET_PLUGTIME:
2191 *u.ptime = f->udev->plugtime;
2192 break;
2193
2194 case USB_CLAIM_INTERFACE:
2195 case USB_RELEASE_INTERFACE:
2196 /* TODO */
2197 break;
2198
2199 case USB_IFACE_DRIVER_ACTIVE:
2200
2201 n = *u.pint & 0xFF;
2202
2203 iface = usbd_get_iface(f->udev, n);
2204
2205 if (iface && iface->subdev)
2206 error = 0;
2207 else
2208 error = ENXIO;
2209 break;
2210
2211 case USB_IFACE_DRIVER_DETACH:
2212
2213 error = priv_check(curthread, PRIV_DRIVER);
2214
2215 if (error)
2216 break;
2217
2218 n = *u.pint & 0xFF;
2219
2220 if (n == USB_IFACE_INDEX_ANY) {
2221 error = EINVAL;
2222 break;
2223 }
2224
2225 /*
2226 * Detach the currently attached driver.
2227 */
2228 usb_detach_device(f->udev, n, 0);
2229
2230 /*
2231 * Set parent to self, this should keep attach away
2232 * until the next set configuration event.
2233 */
2234 usbd_set_parent_iface(f->udev, n, n);
2235 break;
2236
2237 case USB_SET_POWER_MODE:
2238 error = ugen_set_power_mode(f, *u.pint);
2239 break;
2240
2241 case USB_GET_POWER_MODE:
2242 *u.pint = ugen_get_power_mode(f);
2243 break;
2244
2245 case USB_GET_DEV_PORT_PATH:
2246 error = ugen_get_port_path(f, u.dpp);
2247 break;
2248
2249 case USB_GET_POWER_USAGE:
2250 *u.pint = ugen_get_power_usage(f);
2251 break;
2252
2253 case USB_SET_PORT_ENABLE:
2254 error = ugen_do_port_feature(f,
2255 *u.pint, 1, UHF_PORT_ENABLE);
2256 break;
2257
2258 case USB_SET_PORT_DISABLE:
2259 error = ugen_do_port_feature(f,
2260 *u.pint, 0, UHF_PORT_ENABLE);
2261 break;
2262
2263 case USB_FS_INIT:
2264 /* verify input parameters */
2265 if (u.pinit->pEndpoints == NULL) {
2266 error = EINVAL;
2267 break;
2268 }
2269 if (u.pinit->ep_index_max > 127) {
2270 error = EINVAL;
2271 break;
2272 }
2273 if (u.pinit->ep_index_max == 0) {
2274 error = EINVAL;
2275 break;
2276 }
2277 if (f->fs_xfer != NULL) {
2278 error = EBUSY;
2279 break;
2280 }
2281 if (f->dev_ep_index != 0) {
2282 error = EINVAL;
2283 break;
2284 }
2285 if (ugen_fifo_in_use(f, fflags)) {
2286 error = EBUSY;
2287 break;
2288 }
2289 error = usb_fifo_alloc_buffer(f, 1, u.pinit->ep_index_max);
2290 if (error) {
2291 break;
2292 }
2293 f->fs_xfer = malloc(sizeof(f->fs_xfer[0]) *
2294 u.pinit->ep_index_max, M_USB, M_WAITOK | M_ZERO);
2295 if (f->fs_xfer == NULL) {
2296 usb_fifo_free_buffer(f);
2297 error = ENOMEM;
2298 break;
2299 }
2300 f->fs_ep_max = u.pinit->ep_index_max;
2301 f->fs_ep_ptr = u.pinit->pEndpoints;
2302 break;
2303
2304 case USB_FS_UNINIT:
2305 if (u.puninit->dummy != 0) {
2306 error = EINVAL;
2307 break;
2308 }
2309 error = ugen_fs_uninit(f);
2310 break;
2311
2312 default:
2313 mtx_lock(f->priv_mtx);
2314 error = ugen_iface_ioctl(f, cmd, addr, fflags);
2315 mtx_unlock(f->priv_mtx);
2316 break;
2317 }
2318 DPRINTFN(6, "error=%d\n", error);
2319 return (error);
2320 }
2321
2322 static void
2323 ugen_ctrl_fs_callback(struct usb_xfer *xfer, usb_error_t error)
2324 {
2325 ; /* workaround for a bug in "indent" */
2326
2327 DPRINTF("st=%u alen=%u aframes=%u\n",
2328 USB_GET_STATE(xfer), xfer->actlen, xfer->aframes);
2329
2330 switch (USB_GET_STATE(xfer)) {
2331 case USB_ST_SETUP:
2332 usbd_transfer_submit(xfer);
2333 break;
2334 default:
2335 ugen_fs_set_complete(xfer->priv_sc, USB_P2U(xfer->priv_fifo));
2336 break;
2337 }
2338 }
2339 #endif /* USB_HAVE_UGEN */
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