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ig4 - Only enable interrupts when we want them. Otherwise keep mask at 0.
[dragonfly.git] / sys / bus / u4b / usb_generic.c
blob798b3f87493f476b2addcedd62cbe0dcf42159be
1 /* $FreeBSD: head/sys/dev/usb/usb_generic.c 277417 2015-01-20 11:43:16Z 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 #include <sys/stdint.h>
28 #include <sys/param.h>
29 #include <sys/queue.h>
30 #include <sys/types.h>
31 #include <sys/systm.h>
32 #include <sys/kernel.h>
33 #include <sys/bus.h>
34 #include <sys/module.h>
35 #include <sys/lock.h>
36 #include <sys/mutex.h>
37 #include <sys/condvar.h>
38 #include <sys/sysctl.h>
39 #include <sys/unistd.h>
40 #include <sys/callout.h>
41 #include <sys/malloc.h>
42 #include <sys/priv.h>
43 #include <sys/conf.h>
44 #include <sys/fcntl.h>
45
46 #include <bus/u4b/usb.h>
47 #include <bus/u4b/usb_ioctl.h>
48 #include <bus/u4b/usbdi.h>
49 #include <bus/u4b/usbdi_util.h>
50
51 #define USB_DEBUG_VAR ugen_debug
52
53 #include <bus/u4b/usb_core.h>
54 #include <bus/u4b/usb_dev.h>
55 #include <bus/u4b/usb_mbuf.h>
56 #include <bus/u4b/usb_process.h>
57 #include <bus/u4b/usb_device.h>
58 #include <bus/u4b/usb_debug.h>
59 #include <bus/u4b/usb_request.h>
60 #include <bus/u4b/usb_busdma.h>
61 #include <bus/u4b/usb_util.h>
62 #include <bus/u4b/usb_hub.h>
63 #include <bus/u4b/usb_generic.h>
64 #include <bus/u4b/usb_transfer.h>
65
66 #include <bus/u4b/usb_controller.h>
67 #include <bus/u4b/usb_bus.h>
68
69 #if USB_HAVE_UGEN
70
71 /* defines */
72
73 #define UGEN_BULK_FS_BUFFER_SIZE (64*32) /* bytes */
74 #define UGEN_BULK_HS_BUFFER_SIZE (1024*32) /* bytes */
75 #define UGEN_HW_FRAMES 50 /* number of milliseconds per transfer */
76
77 /* function prototypes */
78
79 static usb_callback_t ugen_read_clear_stall_callback;
80 static usb_callback_t ugen_write_clear_stall_callback;
81 static usb_callback_t ugen_ctrl_read_callback;
82 static usb_callback_t ugen_ctrl_write_callback;
83 static usb_callback_t ugen_isoc_read_callback;
84 static usb_callback_t ugen_isoc_write_callback;
85 static usb_callback_t ugen_ctrl_fs_callback;
86
87 static usb_fifo_open_t ugen_open;
88 static usb_fifo_close_t ugen_close;
89 static usb_fifo_ioctl_t ugen_ioctl;
90 static usb_fifo_ioctl_t ugen_ioctl_post;
91 static usb_fifo_cmd_t ugen_start_read;
92 static usb_fifo_cmd_t ugen_start_write;
93 static usb_fifo_cmd_t ugen_stop_io;
94
95 static int ugen_transfer_setup(struct usb_fifo *,
96 const struct usb_config *, uint8_t);
97 static int ugen_open_pipe_write(struct usb_fifo *);
98 static int ugen_open_pipe_read(struct usb_fifo *);
99 static int ugen_set_config(struct usb_fifo *, uint8_t);
100 static int ugen_set_interface(struct usb_fifo *, uint8_t, uint8_t);
101 static int ugen_get_cdesc(struct usb_fifo *, struct usb_gen_descriptor *);
102 static int ugen_get_sdesc(struct usb_fifo *, struct usb_gen_descriptor *);
103 static int ugen_get_iface_driver(struct usb_fifo *f, struct usb_gen_descriptor *ugd);
104 static int usb_gen_fill_deviceinfo(struct usb_fifo *,
105 struct usb_device_info *);
106 static int ugen_re_enumerate(struct usb_fifo *);
107 static int ugen_iface_ioctl(struct usb_fifo *, u_long, void *, int);
108 static uint8_t ugen_fs_get_complete(struct usb_fifo *, uint8_t *);
109 static int ugen_fs_uninit(struct usb_fifo *f);
110
111 /* structures */
112
113 struct usb_fifo_methods usb_ugen_methods = {
114 .f_open = &ugen_open,
115 .f_close = &ugen_close,
116 .f_ioctl = &ugen_ioctl,
117 .f_ioctl_post = &ugen_ioctl_post,
118 .f_start_read = &ugen_start_read,
119 .f_stop_read = &ugen_stop_io,
120 .f_start_write = &ugen_start_write,
121 .f_stop_write = &ugen_stop_io,
122 };
123
124 #ifdef USB_DEBUG
125 static int ugen_debug = 0;
126
127 static SYSCTL_NODE(_hw_usb, OID_AUTO, ugen, CTLFLAG_RW, 0, "USB generic");
128 SYSCTL_INT(_hw_usb_ugen, OID_AUTO, debug, CTLFLAG_RW, &ugen_debug,
129 0, "Debug level");
130
131 TUNABLE_INT("hw.usb.ugen.debug", &ugen_debug);
132 #endif
133
134
135 /* prototypes */
136
137 static int
138 ugen_transfer_setup(struct usb_fifo *f,
139 const struct usb_config *setup, uint8_t n_setup)
140 {
141 struct usb_endpoint *ep = usb_fifo_softc(f);
142 struct usb_device *udev = f->udev;
143 uint8_t iface_index = ep->iface_index;
144 int error;
145
146 lockmgr(f->priv_lock, LK_RELEASE);
147
148 /*
149 * "usbd_transfer_setup()" can sleep so one needs to make a wrapper,
150 * exiting the mutex and checking things
151 */
152 error = usbd_transfer_setup(udev, &iface_index, f->xfer,
153 setup, n_setup, f, f->priv_lock);
154 if (error == 0) {
155
156 if (f->xfer[0]->nframes == 1) {
157 error = usb_fifo_alloc_buffer(f,
158 f->xfer[0]->max_data_length, 2);
159 } else {
160 error = usb_fifo_alloc_buffer(f,
161 f->xfer[0]->max_frame_size,
162 2 * f->xfer[0]->nframes);
163 }
164 if (error) {
165 usbd_transfer_unsetup(f->xfer, n_setup);
166 }
167 }
168 lockmgr(f->priv_lock, LK_EXCLUSIVE);
169
170 return (error);
171 }
172
173 static int
174 ugen_open(struct usb_fifo *f, int fflags)
175 {
176 struct usb_endpoint *ep = usb_fifo_softc(f);
177 struct usb_endpoint_descriptor *ed = ep->edesc;
178 uint8_t type;
179
180 DPRINTFN(6, "flag=0x%x\n", fflags);
181
182 lockmgr(f->priv_lock, LK_EXCLUSIVE);
183 switch (usbd_get_speed(f->udev)) {
184 case USB_SPEED_LOW:
185 case USB_SPEED_FULL:
186 f->nframes = UGEN_HW_FRAMES;
187 f->bufsize = UGEN_BULK_FS_BUFFER_SIZE;
188 break;
189 default:
190 f->nframes = UGEN_HW_FRAMES * 8;
191 f->bufsize = UGEN_BULK_HS_BUFFER_SIZE;
192 break;
193 }
194
195 type = ed->bmAttributes & UE_XFERTYPE;
196 if (type == UE_INTERRUPT) {
197 f->bufsize = 0; /* use "wMaxPacketSize" */
198 }
199 f->timeout = USB_NO_TIMEOUT;
200 f->flag_short = 0;
201 f->fifo_zlp = 0;
202 lockmgr(f->priv_lock, LK_RELEASE);
203
204 return (0);
205 }
206
207 static void
208 ugen_close(struct usb_fifo *f, int fflags)
209 {
210 DPRINTFN(6, "flag=0x%x\n", fflags);
211
212 /* cleanup */
213
214 lockmgr(f->priv_lock, LK_EXCLUSIVE);
215 usbd_transfer_stop(f->xfer[0]);
216 usbd_transfer_stop(f->xfer[1]);
217 lockmgr(f->priv_lock, LK_RELEASE);
218
219 usbd_transfer_unsetup(f->xfer, 2);
220 usb_fifo_free_buffer(f);
221
222 if (ugen_fs_uninit(f)) {
223 /* ignore any errors - we are closing */
224 DPRINTFN(6, "no FIFOs\n");
225 }
226 }
227
228 static int
229 ugen_open_pipe_write(struct usb_fifo *f)
230 {
231 struct usb_config usb_config[2];
232 struct usb_endpoint *ep = usb_fifo_softc(f);
233 struct usb_endpoint_descriptor *ed = ep->edesc;
234
235 KKASSERT(lockowned(f->priv_lock));
236
237 if (f->xfer[0] || f->xfer[1]) {
238 /* transfers are already opened */
239 return (0);
240 }
241 memset(usb_config, 0, sizeof(usb_config));
242
243 usb_config[1].type = UE_CONTROL;
244 usb_config[1].endpoint = 0;
245 usb_config[1].direction = UE_DIR_ANY;
246 usb_config[1].timeout = 1000; /* 1 second */
247 usb_config[1].interval = 50;/* 50 milliseconds */
248 usb_config[1].bufsize = sizeof(struct usb_device_request);
249 usb_config[1].callback = &ugen_write_clear_stall_callback;
250 usb_config[1].usb_mode = USB_MODE_HOST;
251
252 usb_config[0].type = ed->bmAttributes & UE_XFERTYPE;
253 usb_config[0].endpoint = ed->bEndpointAddress & UE_ADDR;
254 usb_config[0].stream_id = 0; /* XXX support more stream ID's */
255 usb_config[0].direction = UE_DIR_TX;
256 usb_config[0].interval = USB_DEFAULT_INTERVAL;
257 usb_config[0].flags.proxy_buffer = 1;
258 usb_config[0].usb_mode = USB_MODE_DUAL; /* both modes */
259
260 switch (ed->bmAttributes & UE_XFERTYPE) {
261 case UE_INTERRUPT:
262 case UE_BULK:
263 if (f->flag_short) {
264 usb_config[0].flags.force_short_xfer = 1;
265 }
266 usb_config[0].callback = &ugen_ctrl_write_callback;
267 usb_config[0].timeout = f->timeout;
268 usb_config[0].frames = 1;
269 usb_config[0].bufsize = f->bufsize;
270 if (ugen_transfer_setup(f, usb_config, 2)) {
271 return (EIO);
272 }
273 /* first transfer does not clear stall */
274 f->flag_stall = 0;
275 break;
276
277 case UE_ISOCHRONOUS:
278 usb_config[0].flags.short_xfer_ok = 1;
279 usb_config[0].bufsize = 0; /* use default */
280 usb_config[0].frames = f->nframes;
281 usb_config[0].callback = &ugen_isoc_write_callback;
282 usb_config[0].timeout = 0;
283
284 /* clone configuration */
285 usb_config[1] = usb_config[0];
286
287 if (ugen_transfer_setup(f, usb_config, 2)) {
288 return (EIO);
289 }
290 break;
291 default:
292 return (EINVAL);
293 }
294 return (0);
295 }
296
297 static int
298 ugen_open_pipe_read(struct usb_fifo *f)
299 {
300 struct usb_config usb_config[2];
301 struct usb_endpoint *ep = usb_fifo_softc(f);
302 struct usb_endpoint_descriptor *ed = ep->edesc;
303
304 KKASSERT(lockowned(f->priv_lock));
305
306 if (f->xfer[0] || f->xfer[1]) {
307 /* transfers are already opened */
308 return (0);
309 }
310 memset(usb_config, 0, sizeof(usb_config));
311
312 usb_config[1].type = UE_CONTROL;
313 usb_config[1].endpoint = 0;
314 usb_config[1].direction = UE_DIR_ANY;
315 usb_config[1].timeout = 1000; /* 1 second */
316 usb_config[1].interval = 50;/* 50 milliseconds */
317 usb_config[1].bufsize = sizeof(struct usb_device_request);
318 usb_config[1].callback = &ugen_read_clear_stall_callback;
319 usb_config[1].usb_mode = USB_MODE_HOST;
320
321 usb_config[0].type = ed->bmAttributes & UE_XFERTYPE;
322 usb_config[0].endpoint = ed->bEndpointAddress & UE_ADDR;
323 usb_config[0].stream_id = 0; /* XXX support more stream ID's */
324 usb_config[0].direction = UE_DIR_RX;
325 usb_config[0].interval = USB_DEFAULT_INTERVAL;
326 usb_config[0].flags.proxy_buffer = 1;
327 usb_config[0].usb_mode = USB_MODE_DUAL; /* both modes */
328
329 switch (ed->bmAttributes & UE_XFERTYPE) {
330 case UE_INTERRUPT:
331 case UE_BULK:
332 if (f->flag_short) {
333 usb_config[0].flags.short_xfer_ok = 1;
334 }
335 usb_config[0].timeout = f->timeout;
336 usb_config[0].frames = 1;
337 usb_config[0].callback = &ugen_ctrl_read_callback;
338 usb_config[0].bufsize = f->bufsize;
339
340 if (ugen_transfer_setup(f, usb_config, 2)) {
341 return (EIO);
342 }
343 /* first transfer does not clear stall */
344 f->flag_stall = 0;
345 break;
346
347 case UE_ISOCHRONOUS:
348 usb_config[0].flags.short_xfer_ok = 1;
349 usb_config[0].bufsize = 0; /* use default */
350 usb_config[0].frames = f->nframes;
351 usb_config[0].callback = &ugen_isoc_read_callback;
352 usb_config[0].timeout = 0;
353
354 /* clone configuration */
355 usb_config[1] = usb_config[0];
356
357 if (ugen_transfer_setup(f, usb_config, 2)) {
358 return (EIO);
359 }
360 break;
361
362 default:
363 return (EINVAL);
364 }
365 return (0);
366 }
367
368 static void
369 ugen_start_read(struct usb_fifo *f)
370 {
371 /* check that pipes are open */
372 if (ugen_open_pipe_read(f)) {
373 /* signal error */
374 usb_fifo_put_data_error(f);
375 }
376 /* start transfers */
377 usbd_transfer_start(f->xfer[0]);
378 usbd_transfer_start(f->xfer[1]);
379 }
380
381 static void
382 ugen_start_write(struct usb_fifo *f)
383 {
384 /* check that pipes are open */
385 if (ugen_open_pipe_write(f)) {
386 /* signal error */
387 usb_fifo_get_data_error(f);
388 }
389 /* start transfers */
390 usbd_transfer_start(f->xfer[0]);
391 usbd_transfer_start(f->xfer[1]);
392 }
393
394 static void
395 ugen_stop_io(struct usb_fifo *f)
396 {
397 /* stop transfers */
398 usbd_transfer_stop(f->xfer[0]);
399 usbd_transfer_stop(f->xfer[1]);
400 }
401
402 static void
403 ugen_ctrl_read_callback(struct usb_xfer *xfer, usb_error_t error)
404 {
405 struct usb_fifo *f = usbd_xfer_softc(xfer);
406 struct usb_mbuf *m;
407
408 DPRINTFN(4, "actlen=%u, aframes=%u\n", xfer->actlen, xfer->aframes);
409
410 switch (USB_GET_STATE(xfer)) {
411 case USB_ST_TRANSFERRED:
412 if (xfer->actlen == 0) {
413 if (f->fifo_zlp != 4) {
414 f->fifo_zlp++;
415 } else {
416 /*
417 * Throttle a little bit we have multiple ZLPs
418 * in a row!
419 */
420 xfer->interval = 64; /* ms */
421 }
422 } else {
423 /* clear throttle */
424 xfer->interval = 0;
425 f->fifo_zlp = 0;
426 }
427 usb_fifo_put_data(f, xfer->frbuffers, 0,
428 xfer->actlen, 1);
429
430 case USB_ST_SETUP:
431 if (f->flag_stall) {
432 usbd_transfer_start(f->xfer[1]);
433 break;
434 }
435 USB_IF_POLL(&f->free_q, m);
436 if (m) {
437 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
438 usbd_transfer_submit(xfer);
439 }
440 break;
441
442 default: /* Error */
443 if (xfer->error != USB_ERR_CANCELLED) {
444 /* send a zero length packet to userland */
445 usb_fifo_put_data(f, xfer->frbuffers, 0, 0, 1);
446 f->flag_stall = 1;
447 f->fifo_zlp = 0;
448 usbd_transfer_start(f->xfer[1]);
449 }
450 break;
451 }
452 }
453
454 static void
455 ugen_ctrl_write_callback(struct usb_xfer *xfer, usb_error_t error)
456 {
457 struct usb_fifo *f = usbd_xfer_softc(xfer);
458 usb_frlength_t actlen;
459
460 DPRINTFN(4, "actlen=%u, aframes=%u\n", xfer->actlen, xfer->aframes);
461
462 switch (USB_GET_STATE(xfer)) {
463 case USB_ST_SETUP:
464 case USB_ST_TRANSFERRED:
465 /*
466 * If writing is in stall, just jump to clear stall
467 * callback and solve the situation.
468 */
469 if (f->flag_stall) {
470 usbd_transfer_start(f->xfer[1]);
471 break;
472 }
473 /*
474 * Write data, setup and perform hardware transfer.
475 */
476 if (usb_fifo_get_data(f, xfer->frbuffers, 0,
477 xfer->max_data_length, &actlen, 0)) {
478 usbd_xfer_set_frame_len(xfer, 0, actlen);
479 usbd_transfer_submit(xfer);
480 }
481 break;
482
483 default: /* Error */
484 if (xfer->error != USB_ERR_CANCELLED) {
485 f->flag_stall = 1;
486 usbd_transfer_start(f->xfer[1]);
487 }
488 break;
489 }
490 }
491
492 static void
493 ugen_read_clear_stall_callback(struct usb_xfer *xfer, usb_error_t error)
494 {
495 struct usb_fifo *f = usbd_xfer_softc(xfer);
496 struct usb_xfer *xfer_other = f->xfer[0];
497
498 if (f->flag_stall == 0) {
499 /* nothing to do */
500 return;
501 }
502 if (usbd_clear_stall_callback(xfer, xfer_other)) {
503 DPRINTFN(5, "f=%p: stall cleared\n", f);
504 f->flag_stall = 0;
505 usbd_transfer_start(xfer_other);
506 }
507 }
508
509 static void
510 ugen_write_clear_stall_callback(struct usb_xfer *xfer, usb_error_t error)
511 {
512 struct usb_fifo *f = usbd_xfer_softc(xfer);
513 struct usb_xfer *xfer_other = f->xfer[0];
514
515 if (f->flag_stall == 0) {
516 /* nothing to do */
517 return;
518 }
519 if (usbd_clear_stall_callback(xfer, xfer_other)) {
520 DPRINTFN(5, "f=%p: stall cleared\n", f);
521 f->flag_stall = 0;
522 usbd_transfer_start(xfer_other);
523 }
524 }
525
526 static void
527 ugen_isoc_read_callback(struct usb_xfer *xfer, usb_error_t error)
528 {
529 struct usb_fifo *f = usbd_xfer_softc(xfer);
530 usb_frlength_t offset;
531 usb_frcount_t n;
532
533 DPRINTFN(4, "actlen=%u, aframes=%u\n", xfer->actlen, xfer->aframes);
534
535 switch (USB_GET_STATE(xfer)) {
536 case USB_ST_TRANSFERRED:
537
538 DPRINTFN(6, "actlen=%d\n", xfer->actlen);
539
540 offset = 0;
541
542 for (n = 0; n != xfer->aframes; n++) {
543 usb_fifo_put_data(f, xfer->frbuffers, offset,
544 xfer->frlengths[n], 1);
545 offset += xfer->max_frame_size;
546 }
547
548 case USB_ST_SETUP:
549 tr_setup:
550 for (n = 0; n != xfer->nframes; n++) {
551 /* setup size for next transfer */
552 usbd_xfer_set_frame_len(xfer, n, xfer->max_frame_size);
553 }
554 usbd_transfer_submit(xfer);
555 break;
556
557 default: /* Error */
558 if (xfer->error == USB_ERR_CANCELLED) {
559 break;
560 }
561 goto tr_setup;
562 }
563 }
564
565 static void
566 ugen_isoc_write_callback(struct usb_xfer *xfer, usb_error_t error)
567 {
568 struct usb_fifo *f = usbd_xfer_softc(xfer);
569 usb_frlength_t actlen;
570 usb_frlength_t offset;
571 usb_frcount_t n;
572
573 DPRINTFN(4, "actlen=%u, aframes=%u\n", xfer->actlen, xfer->aframes);
574
575 switch (USB_GET_STATE(xfer)) {
576 case USB_ST_TRANSFERRED:
577 case USB_ST_SETUP:
578 tr_setup:
579 offset = 0;
580 for (n = 0; n != xfer->nframes; n++) {
581 if (usb_fifo_get_data(f, xfer->frbuffers, offset,
582 xfer->max_frame_size, &actlen, 1)) {
583 usbd_xfer_set_frame_len(xfer, n, actlen);
584 offset += actlen;
585 } else {
586 break;
587 }
588 }
589
590 for (; n != xfer->nframes; n++) {
591 /* fill in zero frames */
592 usbd_xfer_set_frame_len(xfer, n, 0);
593 }
594 usbd_transfer_submit(xfer);
595 break;
596
597 default: /* Error */
598 if (xfer->error == USB_ERR_CANCELLED) {
599 break;
600 }
601 goto tr_setup;
602 }
603 }
604
605 static int
606 ugen_set_config(struct usb_fifo *f, uint8_t index)
607 {
608 DPRINTFN(2, "index %u\n", index);
609
610 if (f->udev->flags.usb_mode != USB_MODE_HOST) {
611 /* not possible in device side mode */
612 return (ENOTTY);
613 }
614
615 /* make sure all FIFO's are gone */
616 /* else there can be a deadlock */
617 if (ugen_fs_uninit(f)) {
618 /* ignore any errors */
619 DPRINTFN(6, "no FIFOs\n");
620 }
621
622 if (usbd_start_set_config(f->udev, index) != 0)
623 return (EIO);
624
625 return (0);
626 }
627
628 static int
629 ugen_set_interface(struct usb_fifo *f,
630 uint8_t iface_index, uint8_t alt_index)
631 {
632 DPRINTFN(2, "%u, %u\n", iface_index, alt_index);
633
634 if (f->udev->flags.usb_mode != USB_MODE_HOST) {
635 /* not possible in device side mode */
636 return (ENOTTY);
637 }
638 /* make sure all FIFO's are gone */
639 /* else there can be a deadlock */
640 if (ugen_fs_uninit(f)) {
641 /* ignore any errors */
642 DPRINTFN(6, "no FIFOs\n");
643 }
644 /* change setting - will free generic FIFOs, if any */
645 if (usbd_set_alt_interface_index(f->udev, iface_index, alt_index)) {
646 return (EIO);
647 }
648 /* probe and attach */
649 if (usb_probe_and_attach(f->udev, iface_index)) {
650 return (EIO);
651 }
652 return (0);
653 }
654
655 /*------------------------------------------------------------------------*
656 * ugen_get_cdesc
657 *
658 * This function will retrieve the complete configuration descriptor
659 * at the given index.
660 *------------------------------------------------------------------------*/
661 static int
662 ugen_get_cdesc(struct usb_fifo *f, struct usb_gen_descriptor *ugd)
663 {
664 struct usb_config_descriptor *cdesc;
665 struct usb_device *udev = f->udev;
666 int error;
667 uint16_t len;
668 uint8_t free_data;
669
670 DPRINTFN(6, "\n");
671
672 if (ugd->ugd_data == NULL) {
673 /* userland pointer should not be zero */
674 return (EINVAL);
675 }
676 if ((ugd->ugd_config_index == USB_UNCONFIG_INDEX) ||
677 (ugd->ugd_config_index == udev->curr_config_index)) {
678 cdesc = usbd_get_config_descriptor(udev);
679 if (cdesc == NULL) {
680 return (ENXIO);
681 }
682 free_data = 0;
683
684 } else {
685 #if (USB_HAVE_FIXED_CONFIG == 0)
686 if (usbd_req_get_config_desc_full(udev,
687 NULL, &cdesc, ugd->ugd_config_index)) {
688 return (ENXIO);
689 }
690 free_data = 1;
691 #else
692 /* configuration descriptor data is shared */
693 return (EINVAL);
694 #endif
695 }
696
697 len = UGETW(cdesc->wTotalLength);
698 if (len > ugd->ugd_maxlen) {
699 len = ugd->ugd_maxlen;
700 }
701 DPRINTFN(6, "len=%u\n", len);
702
703 ugd->ugd_actlen = len;
704 ugd->ugd_offset = 0;
705
706 error = copyout(cdesc, ugd->ugd_data, len);
707
708 if (free_data)
709 usbd_free_config_desc(udev, cdesc);
710
711 return (error);
712 }
713
714 /*
715 * This function is called having the enumeration SX locked which
716 * protects the scratch area used.
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
725 ptr = f->udev->scratch.data;
726 size = sizeof(f->udev->scratch.data);
727
728 if (usbd_req_get_string_desc(f->udev, NULL, ptr,
729 size, ugd->ugd_lang_id, ugd->ugd_string_index)) {
730 error = EINVAL;
731 } else {
732
733 if (size > ((uint8_t *)ptr)[0]) {
734 size = ((uint8_t *)ptr)[0];
735 }
736 if (size > ugd->ugd_maxlen) {
737 size = ugd->ugd_maxlen;
738 }
739 ugd->ugd_actlen = size;
740 ugd->ugd_offset = 0;
741
742 error = copyout(ptr, ugd->ugd_data, size);
743 }
744 return (error);
745 }
746
747 /*------------------------------------------------------------------------*
748 * ugen_get_iface_driver
749 *
750 * This function generates an USB interface description for userland.
751 *
752 * Returns:
753 * 0: Success
754 * Else: Failure
755 *------------------------------------------------------------------------*/
756 static int
757 ugen_get_iface_driver(struct usb_fifo *f, struct usb_gen_descriptor *ugd)
758 {
759 struct usb_device *udev = f->udev;
760 struct usb_interface *iface;
761 const char *ptr;
762 const char *desc;
763 unsigned int len;
764 unsigned int maxlen;
765 char buf[128];
766 int error;
767
768 DPRINTFN(6, "\n");
769
770 if ((ugd->ugd_data == NULL) || (ugd->ugd_maxlen == 0)) {
771 /* userland pointer should not be zero */
772 return (EINVAL);
773 }
774
775 iface = usbd_get_iface(udev, ugd->ugd_iface_index);
776 if ((iface == NULL) || (iface->idesc == NULL)) {
777 /* invalid interface index */
778 return (EINVAL);
779 }
780
781 /* read out device nameunit string, if any */
782 if ((iface->subdev != NULL) &&
783 device_is_attached(iface->subdev) &&
784 (ptr = device_get_nameunit(iface->subdev)) &&
785 (desc = device_get_desc(iface->subdev))) {
786
787 /* print description */
788 ksnprintf(buf, sizeof(buf), "%s: <%s>", ptr, desc);
789
790 /* range checks */
791 maxlen = ugd->ugd_maxlen - 1;
792 len = strlen(buf);
793 if (len > maxlen)
794 len = maxlen;
795
796 /* update actual length, including terminating zero */
797 ugd->ugd_actlen = len + 1;
798
799 /* copy out interface description */
800 error = copyout(buf, ugd->ugd_data, ugd->ugd_actlen);
801 } else {
802 /* zero length string is default */
803 error = copyout("", ugd->ugd_data, 1);
804 }
805 return (error);
806 }
807
808 /*------------------------------------------------------------------------*
809 * usb_gen_fill_deviceinfo
810 *
811 * This function dumps information about an USB device to the
812 * structure pointed to by the "di" argument.
813 *
814 * Returns:
815 * 0: Success
816 * Else: Failure
817 *------------------------------------------------------------------------*/
818 static int
819 usb_gen_fill_deviceinfo(struct usb_fifo *f, struct usb_device_info *di)
820 {
821 struct usb_device *udev;
822 struct usb_device *hub;
823
824 udev = f->udev;
825
826 bzero(di, sizeof(di[0]));
827
828 di->udi_bus = device_get_unit(udev->bus->bdev);
829 di->udi_addr = udev->address;
830 di->udi_index = udev->device_index;
831 strlcpy(di->udi_serial, usb_get_serial(udev), sizeof(di->udi_serial));
832 strlcpy(di->udi_vendor, usb_get_manufacturer(udev), sizeof(di->udi_vendor));
833 strlcpy(di->udi_product, usb_get_product(udev), sizeof(di->udi_product));
834 usb_printbcd(di->udi_release, sizeof(di->udi_release),
835 UGETW(udev->ddesc.bcdDevice));
836 di->udi_vendorNo = UGETW(udev->ddesc.idVendor);
837 di->udi_productNo = UGETW(udev->ddesc.idProduct);
838 di->udi_releaseNo = UGETW(udev->ddesc.bcdDevice);
839 di->udi_class = udev->ddesc.bDeviceClass;
840 di->udi_subclass = udev->ddesc.bDeviceSubClass;
841 di->udi_protocol = udev->ddesc.bDeviceProtocol;
842 di->udi_config_no = udev->curr_config_no;
843 di->udi_config_index = udev->curr_config_index;
844 di->udi_power = udev->flags.self_powered ? 0 : udev->power;
845 di->udi_speed = udev->speed;
846 di->udi_mode = udev->flags.usb_mode;
847 di->udi_power_mode = udev->power_mode;
848 di->udi_suspended = udev->flags.peer_suspended;
849
850 hub = udev->parent_hub;
851 if (hub) {
852 di->udi_hubaddr = hub->address;
853 di->udi_hubindex = hub->device_index;
854 di->udi_hubport = udev->port_no;
855 }
856 return (0);
857 }
858
859 /*------------------------------------------------------------------------*
860 * ugen_check_request
861 *
862 * Return values:
863 * 0: Access allowed
864 * Else: No access
865 *------------------------------------------------------------------------*/
866 static int
867 ugen_check_request(struct usb_device *udev, struct usb_device_request *req)
868 {
869 struct usb_endpoint *ep;
870 int error;
871
872 /*
873 * Avoid requests that would damage the bus integrity:
874 */
875 if (((req->bmRequestType == UT_WRITE_DEVICE) &&
876 (req->bRequest == UR_SET_ADDRESS)) ||
877 ((req->bmRequestType == UT_WRITE_DEVICE) &&
878 (req->bRequest == UR_SET_CONFIG)) ||
879 ((req->bmRequestType == UT_WRITE_INTERFACE) &&
880 (req->bRequest == UR_SET_INTERFACE))) {
881 /*
882 * These requests can be useful for testing USB drivers.
883 */
884 error = priv_check(curthread, PRIV_DRIVER);
885 if (error) {
886 return (error);
887 }
888 }
889 /*
890 * Special case - handle clearing of stall
891 */
892 if (req->bmRequestType == UT_WRITE_ENDPOINT) {
893
894 ep = usbd_get_ep_by_addr(udev, req->wIndex[0]);
895 if (ep == NULL) {
896 return (EINVAL);
897 }
898 if ((req->bRequest == UR_CLEAR_FEATURE) &&
899 (UGETW(req->wValue) == UF_ENDPOINT_HALT)) {
900 usbd_clear_data_toggle(udev, ep);
901 }
902 }
903 /* TODO: add more checks to verify the interface index */
904
905 return (0);
906 }
907
908 int
909 ugen_do_request(struct usb_fifo *f, struct usb_ctl_request *ur)
910 {
911 int error;
912 uint16_t len;
913 uint16_t actlen;
914
915 if (ugen_check_request(f->udev, &ur->ucr_request)) {
916 return (EPERM);
917 }
918 len = UGETW(ur->ucr_request.wLength);
919
920 /* check if "ucr_data" is valid */
921 if (len != 0) {
922 if (ur->ucr_data == NULL) {
923 return (EFAULT);
924 }
925 }
926 /* do the USB request */
927 error = usbd_do_request_flags
928 (f->udev, NULL, &ur->ucr_request, ur->ucr_data,
929 (ur->ucr_flags & USB_SHORT_XFER_OK) |
930 USB_USER_DATA_PTR, &actlen,
931 USB_DEFAULT_TIMEOUT);
932
933 ur->ucr_actlen = actlen;
934
935 if (error) {
936 error = EIO;
937 }
938 return (error);
939 }
940
941 /*------------------------------------------------------------------------
942 * ugen_re_enumerate
943 *------------------------------------------------------------------------*/
944 static int
945 ugen_re_enumerate(struct usb_fifo *f)
946 {
947 struct usb_device *udev = f->udev;
948 int error;
949
950 /*
951 * This request can be useful for testing USB drivers:
952 */
953 error = priv_check(curthread, PRIV_DRIVER);
954 if (error) {
955 return (error);
956 }
957 if (udev->flags.usb_mode != USB_MODE_HOST) {
958 /* not possible in device side mode */
959 DPRINTFN(6, "device mode\n");
960 return (ENOTTY);
961 }
962 /* make sure all FIFO's are gone */
963 /* else there can be a deadlock */
964 if (ugen_fs_uninit(f)) {
965 /* ignore any errors */
966 DPRINTFN(6, "no FIFOs\n");
967 }
968 /* start re-enumeration of device */
969 usbd_start_re_enumerate(udev);
970 return (0);
971 }
972
973 int
974 ugen_fs_uninit(struct usb_fifo *f)
975 {
976 if (f->fs_xfer == NULL) {
977 return (EINVAL);
978 }
979 usbd_transfer_unsetup(f->fs_xfer, f->fs_ep_max);
980 kfree(f->fs_xfer, M_USB);
981 f->fs_xfer = NULL;
982 f->fs_ep_max = 0;
983 f->fs_ep_ptr = NULL;
984 f->flag_iscomplete = 0;
985 usb_fifo_free_buffer(f);
986 return (0);
987 }
988
989 static uint8_t
990 ugen_fs_get_complete(struct usb_fifo *f, uint8_t *pindex)
991 {
992 struct usb_mbuf *m;
993
994 USB_IF_DEQUEUE(&f->used_q, m);
995
996 if (m) {
997 *pindex = *((uint8_t *)(m->cur_data_ptr));
998
999 USB_IF_ENQUEUE(&f->free_q, m);
1000
1001 return (0); /* success */
1002 } else {
1003
1004 *pindex = 0; /* fix compiler warning */
1005
1006 f->flag_iscomplete = 0;
1007 }
1008 return (1); /* failure */
1009 }
1010
1011 static void
1012 ugen_fs_set_complete(struct usb_fifo *f, uint8_t index)
1013 {
1014 struct usb_mbuf *m;
1015
1016 USB_IF_DEQUEUE(&f->free_q, m);
1017
1018 if (m == NULL) {
1019 /* can happen during close */
1020 DPRINTF("out of buffers\n");
1021 return;
1022 }
1023 USB_MBUF_RESET(m);
1024
1025 *((uint8_t *)(m->cur_data_ptr)) = index;
1026
1027 USB_IF_ENQUEUE(&f->used_q, m);
1028
1029 f->flag_iscomplete = 1;
1030
1031 usb_fifo_wakeup(f);
1032 }
1033
1034 static int
1035 ugen_fs_copy_in(struct usb_fifo *f, uint8_t ep_index)
1036 {
1037 struct usb_device_request *req;
1038 struct usb_xfer *xfer;
1039 struct usb_fs_endpoint fs_ep;
1040 void *uaddr; /* userland pointer */
1041 void *kaddr;
1042 usb_frlength_t offset;
1043 usb_frlength_t rem;
1044 usb_frcount_t n;
1045 uint32_t length;
1046 int error;
1047 uint8_t isread;
1048
1049 if (ep_index >= f->fs_ep_max) {
1050 return (EINVAL);
1051 }
1052 xfer = f->fs_xfer[ep_index];
1053 if (xfer == NULL) {
1054 return (EINVAL);
1055 }
1056 lockmgr(f->priv_lock, LK_EXCLUSIVE);
1057 if (usbd_transfer_pending(xfer)) {
1058 lockmgr(f->priv_lock, LK_RELEASE);
1059 return (EBUSY); /* should not happen */
1060 }
1061 lockmgr(f->priv_lock, LK_RELEASE);
1062
1063 error = copyin(f->fs_ep_ptr +
1064 ep_index, &fs_ep, sizeof(fs_ep));
1065 if (error) {
1066 return (error);
1067 }
1068 /* security checks */
1069
1070 if (fs_ep.nFrames > xfer->max_frame_count) {
1071 xfer->error = USB_ERR_INVAL;
1072 goto complete;
1073 }
1074 if (fs_ep.nFrames == 0) {
1075 xfer->error = USB_ERR_INVAL;
1076 goto complete;
1077 }
1078 error = copyin(fs_ep.ppBuffer,
1079 &uaddr, sizeof(uaddr));
1080 if (error) {
1081 return (error);
1082 }
1083 /* reset first frame */
1084 usbd_xfer_set_frame_offset(xfer, 0, 0);
1085
1086 if (xfer->flags_int.control_xfr) {
1087
1088 req = xfer->frbuffers[0].buffer;
1089
1090 error = copyin(fs_ep.pLength,
1091 &length, sizeof(length));
1092 if (error) {
1093 return (error);
1094 }
1095 if (length != sizeof(*req)) {
1096 xfer->error = USB_ERR_INVAL;
1097 goto complete;
1098 }
1099 if (length != 0) {
1100 error = copyin(uaddr, req, length);
1101 if (error) {
1102 return (error);
1103 }
1104 }
1105 if (ugen_check_request(f->udev, req)) {
1106 xfer->error = USB_ERR_INVAL;
1107 goto complete;
1108 }
1109 usbd_xfer_set_frame_len(xfer, 0, length);
1110
1111 /* Host mode only ! */
1112 if ((req->bmRequestType &
1113 (UT_READ | UT_WRITE)) == UT_READ) {
1114 isread = 1;
1115 } else {
1116 isread = 0;
1117 }
1118 n = 1;
1119 offset = sizeof(*req);
1120
1121 } else {
1122 /* Device and Host mode */
1123 if (USB_GET_DATA_ISREAD(xfer)) {
1124 isread = 1;
1125 } else {
1126 isread = 0;
1127 }
1128 n = 0;
1129 offset = 0;
1130 }
1131
1132 rem = usbd_xfer_max_len(xfer);
1133 xfer->nframes = fs_ep.nFrames;
1134 xfer->timeout = fs_ep.timeout;
1135 if (xfer->timeout > 65535) {
1136 xfer->timeout = 65535;
1137 }
1138 if (fs_ep.flags & USB_FS_FLAG_SINGLE_SHORT_OK)
1139 xfer->flags.short_xfer_ok = 1;
1140 else
1141 xfer->flags.short_xfer_ok = 0;
1142
1143 if (fs_ep.flags & USB_FS_FLAG_MULTI_SHORT_OK)
1144 xfer->flags.short_frames_ok = 1;
1145 else
1146 xfer->flags.short_frames_ok = 0;
1147
1148 if (fs_ep.flags & USB_FS_FLAG_FORCE_SHORT)
1149 xfer->flags.force_short_xfer = 1;
1150 else
1151 xfer->flags.force_short_xfer = 0;
1152
1153 if (fs_ep.flags & USB_FS_FLAG_CLEAR_STALL)
1154 usbd_xfer_set_stall(xfer);
1155 else
1156 xfer->flags.stall_pipe = 0;
1157
1158 for (; n != xfer->nframes; n++) {
1159
1160 error = copyin(fs_ep.pLength + n,
1161 &length, sizeof(length));
1162 if (error) {
1163 break;
1164 }
1165 usbd_xfer_set_frame_len(xfer, n, length);
1166
1167 if (length > rem) {
1168 xfer->error = USB_ERR_INVAL;
1169 goto complete;
1170 }
1171 rem -= length;
1172
1173 if (!isread) {
1174
1175 /* we need to know the source buffer */
1176 error = copyin(fs_ep.ppBuffer + n,
1177 &uaddr, sizeof(uaddr));
1178 if (error) {
1179 break;
1180 }
1181 if (xfer->flags_int.isochronous_xfr) {
1182 /* get kernel buffer address */
1183 kaddr = xfer->frbuffers[0].buffer;
1184 kaddr = USB_ADD_BYTES(kaddr, offset);
1185 } else {
1186 /* set current frame offset */
1187 usbd_xfer_set_frame_offset(xfer, offset, n);
1188
1189 /* get kernel buffer address */
1190 kaddr = xfer->frbuffers[n].buffer;
1191 }
1192
1193 /* move data */
1194 error = copyin(uaddr, kaddr, length);
1195 if (error) {
1196 break;
1197 }
1198 }
1199 offset += length;
1200 }
1201 return (error);
1202
1203 complete:
1204 lockmgr(f->priv_lock, LK_EXCLUSIVE);
1205 ugen_fs_set_complete(f, ep_index);
1206 lockmgr(f->priv_lock, LK_RELEASE);
1207 return (0);
1208 }
1209
1210 static int
1211 ugen_fs_copy_out(struct usb_fifo *f, uint8_t ep_index)
1212 {
1213 struct usb_device_request *req;
1214 struct usb_xfer *xfer;
1215 struct usb_fs_endpoint fs_ep;
1216 struct usb_fs_endpoint *fs_ep_uptr; /* userland ptr */
1217 void *uaddr; /* userland ptr */
1218 void *kaddr;
1219 usb_frlength_t offset;
1220 usb_frlength_t rem;
1221 usb_frcount_t n;
1222 uint32_t length;
1223 uint32_t temp;
1224 int error;
1225 uint8_t isread;
1226
1227 if (ep_index >= f->fs_ep_max)
1228 return (EINVAL);
1229
1230 xfer = f->fs_xfer[ep_index];
1231 if (xfer == NULL)
1232 return (EINVAL);
1233
1234 lockmgr(f->priv_lock, LK_EXCLUSIVE);
1235 if (usbd_transfer_pending(xfer)) {
1236 lockmgr(f->priv_lock, LK_RELEASE);
1237 return (EBUSY); /* should not happen */
1238 }
1239 lockmgr(f->priv_lock, LK_RELEASE);
1240
1241 fs_ep_uptr = f->fs_ep_ptr + ep_index;
1242 error = copyin(fs_ep_uptr, &fs_ep, sizeof(fs_ep));
1243 if (error) {
1244 return (error);
1245 }
1246 fs_ep.status = xfer->error;
1247 fs_ep.aFrames = xfer->aframes;
1248 fs_ep.isoc_time_complete = xfer->isoc_time_complete;
1249 if (xfer->error) {
1250 goto complete;
1251 }
1252 if (xfer->flags_int.control_xfr) {
1253 req = xfer->frbuffers[0].buffer;
1254
1255 /* Host mode only ! */
1256 if ((req->bmRequestType & (UT_READ | UT_WRITE)) == UT_READ) {
1257 isread = 1;
1258 } else {
1259 isread = 0;
1260 }
1261 if (xfer->nframes == 0)
1262 n = 0; /* should never happen */
1263 else
1264 n = 1;
1265 } else {
1266 /* Device and Host mode */
1267 if (USB_GET_DATA_ISREAD(xfer)) {
1268 isread = 1;
1269 } else {
1270 isread = 0;
1271 }
1272 n = 0;
1273 }
1274
1275 /* Update lengths and copy out data */
1276
1277 rem = usbd_xfer_max_len(xfer);
1278 offset = 0;
1279
1280 for (; n != xfer->nframes; n++) {
1281
1282 /* get initial length into "temp" */
1283 error = copyin(fs_ep.pLength + n,
1284 &temp, sizeof(temp));
1285 if (error) {
1286 return (error);
1287 }
1288 if (temp > rem) {
1289 /* the userland length has been corrupted */
1290 DPRINTF("corrupt userland length "
1291 "%u > %u\n", temp, rem);
1292 fs_ep.status = USB_ERR_INVAL;
1293 goto complete;
1294 }
1295 rem -= temp;
1296
1297 /* get actual transfer length */
1298 length = xfer->frlengths[n];
1299 if (length > temp) {
1300 /* data overflow */
1301 fs_ep.status = USB_ERR_INVAL;
1302 DPRINTF("data overflow %u > %u\n",
1303 length, temp);
1304 goto complete;
1305 }
1306 if (isread) {
1307
1308 /* we need to know the destination buffer */
1309 error = copyin(fs_ep.ppBuffer + n,
1310 &uaddr, sizeof(uaddr));
1311 if (error) {
1312 return (error);
1313 }
1314 if (xfer->flags_int.isochronous_xfr) {
1315 /* only one frame buffer */
1316 kaddr = USB_ADD_BYTES(
1317 xfer->frbuffers[0].buffer, offset);
1318 } else {
1319 /* multiple frame buffers */
1320 kaddr = xfer->frbuffers[n].buffer;
1321 }
1322
1323 /* move data */
1324 error = copyout(kaddr, uaddr, length);
1325 if (error) {
1326 return (error);
1327 }
1328 }
1329 /*
1330 * Update offset according to initial length, which is
1331 * needed by isochronous transfers!
1332 */
1333 offset += temp;
1334
1335 /* update length */
1336 error = copyout(&length,
1337 fs_ep.pLength + n, sizeof(length));
1338 if (error) {
1339 return (error);
1340 }
1341 }
1342
1343 complete:
1344 /* update "aFrames" */
1345 error = copyout(&fs_ep.aFrames, &fs_ep_uptr->aFrames,
1346 sizeof(fs_ep.aFrames));
1347 if (error)
1348 goto done;
1349
1350 /* update "isoc_time_complete" */
1351 error = copyout(&fs_ep.isoc_time_complete,
1352 &fs_ep_uptr->isoc_time_complete,
1353 sizeof(fs_ep.isoc_time_complete));
1354 if (error)
1355 goto done;
1356 /* update "status" */
1357 error = copyout(&fs_ep.status, &fs_ep_uptr->status,
1358 sizeof(fs_ep.status));
1359 done:
1360 return (error);
1361 }
1362
1363 static uint8_t
1364 ugen_fifo_in_use(struct usb_fifo *f, int fflags)
1365 {
1366 struct usb_fifo *f_rx;
1367 struct usb_fifo *f_tx;
1368
1369 f_rx = f->udev->fifo[(f->fifo_index & ~1) + USB_FIFO_RX];
1370 f_tx = f->udev->fifo[(f->fifo_index & ~1) + USB_FIFO_TX];
1371
1372 if ((fflags & FREAD) && f_rx &&
1373 (f_rx->xfer[0] || f_rx->xfer[1])) {
1374 return (1); /* RX FIFO in use */
1375 }
1376 if ((fflags & FWRITE) && f_tx &&
1377 (f_tx->xfer[0] || f_tx->xfer[1])) {
1378 return (1); /* TX FIFO in use */
1379 }
1380 return (0); /* not in use */
1381 }
1382
1383 static int
1384 ugen_ioctl(struct usb_fifo *f, u_long cmd, void *addr, int fflags)
1385 {
1386 struct usb_config usb_config[1];
1387 struct usb_device_request req;
1388 union {
1389 struct usb_fs_complete *pcomp;
1390 struct usb_fs_start *pstart;
1391 struct usb_fs_stop *pstop;
1392 struct usb_fs_open *popen;
1393 struct usb_fs_open_stream *popen_stream;
1394 struct usb_fs_close *pclose;
1395 struct usb_fs_clear_stall_sync *pstall;
1396 void *addr;
1397 } u;
1398 struct usb_endpoint *ep;
1399 struct usb_endpoint_descriptor *ed;
1400 struct usb_xfer *xfer;
1401 int error = 0;
1402 uint8_t iface_index;
1403 uint8_t isread;
1404 uint8_t ep_index;
1405 uint8_t pre_scale;
1406
1407 u.addr = addr;
1408
1409 DPRINTFN(6, "cmd=0x%08lx\n", cmd);
1410
1411 switch (cmd) {
1412 case USB_FS_COMPLETE:
1413 lockmgr(f->priv_lock, LK_EXCLUSIVE);
1414 error = ugen_fs_get_complete(f, &ep_index);
1415 lockmgr(f->priv_lock, LK_RELEASE);
1416
1417 if (error) {
1418 error = EBUSY;
1419 break;
1420 }
1421 u.pcomp->ep_index = ep_index;
1422 error = ugen_fs_copy_out(f, u.pcomp->ep_index);
1423 break;
1424
1425 case USB_FS_START:
1426 error = ugen_fs_copy_in(f, u.pstart->ep_index);
1427 if (error)
1428 break;
1429 lockmgr(f->priv_lock, LK_EXCLUSIVE);
1430 xfer = f->fs_xfer[u.pstart->ep_index];
1431 usbd_transfer_start(xfer);
1432 lockmgr(f->priv_lock, LK_RELEASE);
1433 break;
1434
1435 case USB_FS_STOP:
1436 if (u.pstop->ep_index >= f->fs_ep_max) {
1437 error = EINVAL;
1438 break;
1439 }
1440 lockmgr(f->priv_lock, LK_EXCLUSIVE);
1441 xfer = f->fs_xfer[u.pstart->ep_index];
1442 if (usbd_transfer_pending(xfer)) {
1443 usbd_transfer_stop(xfer);
1444 /*
1445 * Check if the USB transfer was stopped
1446 * before it was even started. Else a cancel
1447 * callback will be pending.
1448 */
1449 if (!xfer->flags_int.transferring) {
1450 ugen_fs_set_complete(xfer->priv_sc,
1451 USB_P2U(xfer->priv_fifo));
1452 }
1453 }
1454 lockmgr(f->priv_lock, LK_RELEASE);
1455 break;
1456
1457 case USB_FS_OPEN:
1458 case USB_FS_OPEN_STREAM:
1459 if (u.popen->ep_index >= f->fs_ep_max) {
1460 error = EINVAL;
1461 break;
1462 }
1463 if (f->fs_xfer[u.popen->ep_index] != NULL) {
1464 error = EBUSY;
1465 break;
1466 }
1467 if (u.popen->max_bufsize > USB_FS_MAX_BUFSIZE) {
1468 u.popen->max_bufsize = USB_FS_MAX_BUFSIZE;
1469 }
1470 if (u.popen->max_frames & USB_FS_MAX_FRAMES_PRE_SCALE) {
1471 pre_scale = 1;
1472 u.popen->max_frames &= ~USB_FS_MAX_FRAMES_PRE_SCALE;
1473 } else {
1474 pre_scale = 0;
1475 }
1476 if (u.popen->max_frames > USB_FS_MAX_FRAMES) {
1477 u.popen->max_frames = USB_FS_MAX_FRAMES;
1478 break;
1479 }
1480 if (u.popen->max_frames == 0) {
1481 error = EINVAL;
1482 break;
1483 }
1484 ep = usbd_get_ep_by_addr(f->udev, u.popen->ep_no);
1485 if (ep == NULL) {
1486 error = EINVAL;
1487 break;
1488 }
1489 ed = ep->edesc;
1490 if (ed == NULL) {
1491 error = ENXIO;
1492 break;
1493 }
1494 iface_index = ep->iface_index;
1495
1496 memset(usb_config, 0, sizeof(usb_config));
1497
1498 usb_config[0].type = ed->bmAttributes & UE_XFERTYPE;
1499 usb_config[0].endpoint = ed->bEndpointAddress & UE_ADDR;
1500 usb_config[0].direction = ed->bEndpointAddress & (UE_DIR_OUT | UE_DIR_IN);
1501 usb_config[0].interval = USB_DEFAULT_INTERVAL;
1502 usb_config[0].flags.proxy_buffer = 1;
1503 if (pre_scale != 0)
1504 usb_config[0].flags.pre_scale_frames = 1;
1505 usb_config[0].callback = &ugen_ctrl_fs_callback;
1506 usb_config[0].timeout = 0; /* no timeout */
1507 usb_config[0].frames = u.popen->max_frames;
1508 usb_config[0].bufsize = u.popen->max_bufsize;
1509 usb_config[0].usb_mode = USB_MODE_DUAL; /* both modes */
1510 if (cmd == USB_FS_OPEN_STREAM)
1511 usb_config[0].stream_id = u.popen_stream->stream_id;
1512
1513 if (usb_config[0].type == UE_CONTROL) {
1514 if (f->udev->flags.usb_mode != USB_MODE_HOST) {
1515 error = EINVAL;
1516 break;
1517 }
1518 } else {
1519
1520 isread = ((usb_config[0].endpoint &
1521 (UE_DIR_IN | UE_DIR_OUT)) == UE_DIR_IN);
1522
1523 if (f->udev->flags.usb_mode != USB_MODE_HOST) {
1524 isread = !isread;
1525 }
1526 /* check permissions */
1527 if (isread) {
1528 if (!(fflags & FREAD)) {
1529 error = EPERM;
1530 break;
1531 }
1532 } else {
1533 if (!(fflags & FWRITE)) {
1534 error = EPERM;
1535 break;
1536 }
1537 }
1538 }
1539 error = usbd_transfer_setup(f->udev, &iface_index,
1540 f->fs_xfer + u.popen->ep_index, usb_config, 1,
1541 f, f->priv_lock);
1542 if (error == 0) {
1543 /* update maximums */
1544 u.popen->max_packet_length =
1545 f->fs_xfer[u.popen->ep_index]->max_frame_size;
1546 u.popen->max_bufsize =
1547 f->fs_xfer[u.popen->ep_index]->max_data_length;
1548 /* update number of frames */
1549 u.popen->max_frames =
1550 f->fs_xfer[u.popen->ep_index]->nframes;
1551 /* store index of endpoint */
1552 f->fs_xfer[u.popen->ep_index]->priv_fifo =
1553 ((uint8_t *)0) + u.popen->ep_index;
1554 } else {
1555 error = ENOMEM;
1556 }
1557 break;
1558
1559 case USB_FS_CLOSE:
1560 if (u.pclose->ep_index >= f->fs_ep_max) {
1561 error = EINVAL;
1562 break;
1563 }
1564 if (f->fs_xfer[u.pclose->ep_index] == NULL) {
1565 error = EINVAL;
1566 break;
1567 }
1568 usbd_transfer_unsetup(f->fs_xfer + u.pclose->ep_index, 1);
1569 break;
1570
1571 case USB_FS_CLEAR_STALL_SYNC:
1572 if (u.pstall->ep_index >= f->fs_ep_max) {
1573 error = EINVAL;
1574 break;
1575 }
1576 if (f->fs_xfer[u.pstall->ep_index] == NULL) {
1577 error = EINVAL;
1578 break;
1579 }
1580 if (f->udev->flags.usb_mode != USB_MODE_HOST) {
1581 error = EINVAL;
1582 break;
1583 }
1584 lockmgr(f->priv_lock, LK_EXCLUSIVE);
1585 error = usbd_transfer_pending(f->fs_xfer[u.pstall->ep_index]);
1586 lockmgr(f->priv_lock, LK_RELEASE);
1587
1588 if (error) {
1589 return (EBUSY);
1590 }
1591 ep = f->fs_xfer[u.pstall->ep_index]->endpoint;
1592
1593 /* setup a clear-stall packet */
1594 req.bmRequestType = UT_WRITE_ENDPOINT;
1595 req.bRequest = UR_CLEAR_FEATURE;
1596 USETW(req.wValue, UF_ENDPOINT_HALT);
1597 req.wIndex[0] = ep->edesc->bEndpointAddress;
1598 req.wIndex[1] = 0;
1599 USETW(req.wLength, 0);
1600
1601 error = usbd_do_request(f->udev, NULL, &req, NULL);
1602 if (error == 0) {
1603 usbd_clear_data_toggle(f->udev, ep);
1604 } else {
1605 error = ENXIO;
1606 }
1607 break;
1608
1609 default:
1610 error = ENOIOCTL;
1611 break;
1612 }
1613
1614 DPRINTFN(6, "error=%d\n", error);
1615
1616 return (error);
1617 }
1618
1619 static int
1620 ugen_set_short_xfer(struct usb_fifo *f, void *addr)
1621 {
1622 uint8_t t;
1623
1624 if (*(int *)addr)
1625 t = 1;
1626 else
1627 t = 0;
1628
1629 if (f->flag_short == t) {
1630 /* same value like before - accept */
1631 return (0);
1632 }
1633 if (f->xfer[0] || f->xfer[1]) {
1634 /* cannot change this during transfer */
1635 return (EBUSY);
1636 }
1637 f->flag_short = t;
1638 return (0);
1639 }
1640
1641 static int
1642 ugen_set_timeout(struct usb_fifo *f, void *addr)
1643 {
1644 f->timeout = *(int *)addr;
1645 if (f->timeout > 65535) {
1646 /* limit user input */
1647 f->timeout = 65535;
1648 }
1649 return (0);
1650 }
1651
1652 static int
1653 ugen_get_frame_size(struct usb_fifo *f, void *addr)
1654 {
1655 if (f->xfer[0]) {
1656 *(int *)addr = f->xfer[0]->max_frame_size;
1657 } else {
1658 return (EINVAL);
1659 }
1660 return (0);
1661 }
1662
1663 static int
1664 ugen_set_buffer_size(struct usb_fifo *f, void *addr)
1665 {
1666 usb_frlength_t t;
1667
1668 if (*(int *)addr < 0)
1669 t = 0; /* use "wMaxPacketSize" */
1670 else if (*(int *)addr < (256 * 1024))
1671 t = *(int *)addr;
1672 else
1673 t = 256 * 1024;
1674
1675 if (f->bufsize == t) {
1676 /* same value like before - accept */
1677 return (0);
1678 }
1679 if (f->xfer[0] || f->xfer[1]) {
1680 /* cannot change this during transfer */
1681 return (EBUSY);
1682 }
1683 f->bufsize = t;
1684 return (0);
1685 }
1686
1687 static int
1688 ugen_get_buffer_size(struct usb_fifo *f, void *addr)
1689 {
1690 *(int *)addr = f->bufsize;
1691 return (0);
1692 }
1693
1694 static int
1695 ugen_get_iface_desc(struct usb_fifo *f,
1696 struct usb_interface_descriptor *idesc)
1697 {
1698 struct usb_interface *iface;
1699
1700 iface = usbd_get_iface(f->udev, f->iface_index);
1701 if (iface && iface->idesc) {
1702 *idesc = *(iface->idesc);
1703 } else {
1704 return (EIO);
1705 }
1706 return (0);
1707 }
1708
1709 static int
1710 ugen_get_endpoint_desc(struct usb_fifo *f,
1711 struct usb_endpoint_descriptor *ed)
1712 {
1713 struct usb_endpoint *ep;
1714
1715 ep = usb_fifo_softc(f);
1716
1717 if (ep && ep->edesc) {
1718 *ed = *ep->edesc;
1719 } else {
1720 return (EINVAL);
1721 }
1722 return (0);
1723 }
1724
1725 static int
1726 ugen_set_power_mode(struct usb_fifo *f, int mode)
1727 {
1728 struct usb_device *udev = f->udev;
1729 int err;
1730 uint8_t old_mode;
1731
1732 if ((udev == NULL) ||
1733 (udev->parent_hub == NULL)) {
1734 return (EINVAL);
1735 }
1736 err = priv_check(curthread, PRIV_DRIVER);
1737 if (err)
1738 return (err);
1739
1740 /* get old power mode */
1741 old_mode = udev->power_mode;
1742
1743 /* if no change, then just return */
1744 if (old_mode == mode)
1745 return (0);
1746
1747 switch (mode) {
1748 case USB_POWER_MODE_OFF:
1749 if (udev->flags.usb_mode == USB_MODE_HOST &&
1750 udev->re_enumerate_wait == USB_RE_ENUM_DONE) {
1751 udev->re_enumerate_wait = USB_RE_ENUM_PWR_OFF;
1752 }
1753 /* set power mode will wake up the explore thread */
1754 break;
1755
1756 case USB_POWER_MODE_ON:
1757 case USB_POWER_MODE_SAVE:
1758 break;
1759
1760 case USB_POWER_MODE_RESUME:
1761 #if USB_HAVE_POWERD
1762 /* let USB-powerd handle resume */
1763 USB_BUS_LOCK(udev->bus);
1764 udev->pwr_save.write_refs++;
1765 udev->pwr_save.last_xfer_time = ticks;
1766 USB_BUS_UNLOCK(udev->bus);
1767
1768 /* set new power mode */
1769 usbd_set_power_mode(udev, USB_POWER_MODE_SAVE);
1770
1771 /* wait for resume to complete */
1772 usb_pause_mtx(NULL, hz / 4);
1773
1774 /* clear write reference */
1775 USB_BUS_LOCK(udev->bus);
1776 udev->pwr_save.write_refs--;
1777 USB_BUS_UNLOCK(udev->bus);
1778 #endif
1779 mode = USB_POWER_MODE_SAVE;
1780 break;
1781
1782 case USB_POWER_MODE_SUSPEND:
1783 #if USB_HAVE_POWERD
1784 /* let USB-powerd handle suspend */
1785 USB_BUS_LOCK(udev->bus);
1786 udev->pwr_save.last_xfer_time = ticks - (256 * hz);
1787 USB_BUS_UNLOCK(udev->bus);
1788 #endif
1789 mode = USB_POWER_MODE_SAVE;
1790 break;
1791
1792 default:
1793 return (EINVAL);
1794 }
1795
1796 if (err)
1797 return (ENXIO); /* I/O failure */
1798
1799 /* if we are powered off we need to re-enumerate first */
1800 if (old_mode == USB_POWER_MODE_OFF) {
1801 if (udev->flags.usb_mode == USB_MODE_HOST &&
1802 udev->re_enumerate_wait == USB_RE_ENUM_DONE) {
1803 udev->re_enumerate_wait = USB_RE_ENUM_START;
1804 }
1805 /* set power mode will wake up the explore thread */
1806 }
1807
1808 /* set new power mode */
1809 usbd_set_power_mode(udev, mode);
1810
1811 return (0); /* success */
1812 }
1813
1814 static int
1815 ugen_get_power_mode(struct usb_fifo *f)
1816 {
1817 struct usb_device *udev = f->udev;
1818
1819 if (udev == NULL)
1820 return (USB_POWER_MODE_ON);
1821
1822 return (udev->power_mode);
1823 }
1824
1825 static int
1826 ugen_get_port_path(struct usb_fifo *f, struct usb_device_port_path *dpp)
1827 {
1828 struct usb_device *udev = f->udev;
1829 struct usb_device *next;
1830 unsigned int nlevel = 0;
1831
1832 if (udev == NULL)
1833 goto error;
1834
1835 dpp->udp_bus = device_get_unit(udev->bus->bdev);
1836 dpp->udp_index = udev->device_index;
1837
1838 /* count port levels */
1839 next = udev;
1840 while (next->parent_hub != NULL) {
1841 nlevel++;
1842 next = next->parent_hub;
1843 }
1844
1845 /* check if too many levels */
1846 if (nlevel > USB_DEVICE_PORT_PATH_MAX)
1847 goto error;
1848
1849 /* store total level of ports */
1850 dpp->udp_port_level = nlevel;
1851
1852 /* store port index array */
1853 next = udev;
1854 while (next->parent_hub != NULL) {
1855 dpp->udp_port_no[--nlevel] = next->port_no;
1856 next = next->parent_hub;
1857 }
1858 return (0); /* success */
1859
1860 error:
1861 return (EINVAL); /* failure */
1862 }
1863
1864 static int
1865 ugen_get_power_usage(struct usb_fifo *f)
1866 {
1867 struct usb_device *udev = f->udev;
1868
1869 if (udev == NULL)
1870 return (0);
1871
1872 return (udev->power);
1873 }
1874
1875 static int
1876 ugen_do_port_feature(struct usb_fifo *f, uint8_t port_no,
1877 uint8_t set, uint16_t feature)
1878 {
1879 struct usb_device *udev = f->udev;
1880 struct usb_hub *hub;
1881 int err;
1882
1883 err = priv_check(curthread, PRIV_DRIVER);
1884 if (err) {
1885 return (err);
1886 }
1887 if (port_no == 0) {
1888 return (EINVAL);
1889 }
1890 if ((udev == NULL) ||
1891 (udev->hub == NULL)) {
1892 return (EINVAL);
1893 }
1894 hub = udev->hub;
1895
1896 if (port_no > hub->nports) {
1897 return (EINVAL);
1898 }
1899 if (set)
1900 err = usbd_req_set_port_feature(udev,
1901 NULL, port_no, feature);
1902 else
1903 err = usbd_req_clear_port_feature(udev,
1904 NULL, port_no, feature);
1905
1906 if (err)
1907 return (ENXIO); /* failure */
1908
1909 return (0); /* success */
1910 }
1911
1912 static int
1913 ugen_iface_ioctl(struct usb_fifo *f, u_long cmd, void *addr, int fflags)
1914 {
1915 struct usb_fifo *f_rx;
1916 struct usb_fifo *f_tx;
1917 int error = 0;
1918
1919 f_rx = f->udev->fifo[(f->fifo_index & ~1) + USB_FIFO_RX];
1920 f_tx = f->udev->fifo[(f->fifo_index & ~1) + USB_FIFO_TX];
1921
1922 switch (cmd) {
1923 case USB_SET_RX_SHORT_XFER:
1924 if (fflags & FREAD) {
1925 error = ugen_set_short_xfer(f_rx, addr);
1926 } else {
1927 error = EINVAL;
1928 }
1929 break;
1930
1931 case USB_SET_TX_FORCE_SHORT:
1932 if (fflags & FWRITE) {
1933 error = ugen_set_short_xfer(f_tx, addr);
1934 } else {
1935 error = EINVAL;
1936 }
1937 break;
1938
1939 case USB_SET_RX_TIMEOUT:
1940 if (fflags & FREAD) {
1941 error = ugen_set_timeout(f_rx, addr);
1942 } else {
1943 error = EINVAL;
1944 }
1945 break;
1946
1947 case USB_SET_TX_TIMEOUT:
1948 if (fflags & FWRITE) {
1949 error = ugen_set_timeout(f_tx, addr);
1950 } else {
1951 error = EINVAL;
1952 }
1953 break;
1954
1955 case USB_GET_RX_FRAME_SIZE:
1956 if (fflags & FREAD) {
1957 error = ugen_get_frame_size(f_rx, addr);
1958 } else {
1959 error = EINVAL;
1960 }
1961 break;
1962
1963 case USB_GET_TX_FRAME_SIZE:
1964 if (fflags & FWRITE) {
1965 error = ugen_get_frame_size(f_tx, addr);
1966 } else {
1967 error = EINVAL;
1968 }
1969 break;
1970
1971 case USB_SET_RX_BUFFER_SIZE:
1972 if (fflags & FREAD) {
1973 error = ugen_set_buffer_size(f_rx, addr);
1974 } else {
1975 error = EINVAL;
1976 }
1977 break;
1978
1979 case USB_SET_TX_BUFFER_SIZE:
1980 if (fflags & FWRITE) {
1981 error = ugen_set_buffer_size(f_tx, addr);
1982 } else {
1983 error = EINVAL;
1984 }
1985 break;
1986
1987 case USB_GET_RX_BUFFER_SIZE:
1988 if (fflags & FREAD) {
1989 error = ugen_get_buffer_size(f_rx, addr);
1990 } else {
1991 error = EINVAL;
1992 }
1993 break;
1994
1995 case USB_GET_TX_BUFFER_SIZE:
1996 if (fflags & FWRITE) {
1997 error = ugen_get_buffer_size(f_tx, addr);
1998 } else {
1999 error = EINVAL;
2000 }
2001 break;
2002
2003 case USB_GET_RX_INTERFACE_DESC:
2004 if (fflags & FREAD) {
2005 error = ugen_get_iface_desc(f_rx, addr);
2006 } else {
2007 error = EINVAL;
2008 }
2009 break;
2010
2011 case USB_GET_TX_INTERFACE_DESC:
2012 if (fflags & FWRITE) {
2013 error = ugen_get_iface_desc(f_tx, addr);
2014 } else {
2015 error = EINVAL;
2016 }
2017 break;
2018
2019 case USB_GET_RX_ENDPOINT_DESC:
2020 if (fflags & FREAD) {
2021 error = ugen_get_endpoint_desc(f_rx, addr);
2022 } else {
2023 error = EINVAL;
2024 }
2025 break;
2026
2027 case USB_GET_TX_ENDPOINT_DESC:
2028 if (fflags & FWRITE) {
2029 error = ugen_get_endpoint_desc(f_tx, addr);
2030 } else {
2031 error = EINVAL;
2032 }
2033 break;
2034
2035 case USB_SET_RX_STALL_FLAG:
2036 if ((fflags & FREAD) && (*(int *)addr)) {
2037 f_rx->flag_stall = 1;
2038 }
2039 break;
2040
2041 case USB_SET_TX_STALL_FLAG:
2042 if ((fflags & FWRITE) && (*(int *)addr)) {
2043 f_tx->flag_stall = 1;
2044 }
2045 break;
2046
2047 default:
2048 error = ENOIOCTL;
2049 break;
2050 }
2051 return (error);
2052 }
2053
2054 static int
2055 ugen_ioctl_post(struct usb_fifo *f, u_long cmd, void *addr, int fflags)
2056 {
2057 union {
2058 struct usb_interface_descriptor *idesc;
2059 struct usb_alt_interface *ai;
2060 struct usb_device_descriptor *ddesc;
2061 struct usb_config_descriptor *cdesc;
2062 struct usb_device_stats *stat;
2063 struct usb_fs_init *pinit;
2064 struct usb_fs_uninit *puninit;
2065 struct usb_device_port_path *dpp;
2066 uint32_t *ptime;
2067 void *addr;
2068 int *pint;
2069 } u;
2070 struct usb_device_descriptor *dtemp;
2071 struct usb_config_descriptor *ctemp;
2072 struct usb_interface *iface;
2073 int error = 0;
2074 uint8_t n;
2075
2076 u.addr = addr;
2077
2078 DPRINTFN(6, "cmd=0x%08lx\n", cmd);
2079
2080 switch (cmd) {
2081 case USB_DISCOVER:
2082 usb_needs_explore_all();
2083 break;
2084
2085 case USB_SETDEBUG:
2086 if (!(fflags & FWRITE)) {
2087 error = EPERM;
2088 break;
2089 }
2090 usb_debug = *(int *)addr;
2091 break;
2092
2093 case USB_GET_CONFIG:
2094 *(int *)addr = f->udev->curr_config_index;
2095 break;
2096
2097 case USB_SET_CONFIG:
2098 if (!(fflags & FWRITE)) {
2099 error = EPERM;
2100 break;
2101 }
2102 error = ugen_set_config(f, *(int *)addr);
2103 break;
2104
2105 case USB_GET_ALTINTERFACE:
2106 iface = usbd_get_iface(f->udev,
2107 u.ai->uai_interface_index);
2108 if (iface && iface->idesc) {
2109 u.ai->uai_alt_index = iface->alt_index;
2110 } else {
2111 error = EINVAL;
2112 }
2113 break;
2114
2115 case USB_SET_ALTINTERFACE:
2116 if (!(fflags & FWRITE)) {
2117 error = EPERM;
2118 break;
2119 }
2120 error = ugen_set_interface(f,
2121 u.ai->uai_interface_index, u.ai->uai_alt_index);
2122 break;
2123
2124 case USB_GET_DEVICE_DESC:
2125 dtemp = usbd_get_device_descriptor(f->udev);
2126 if (!dtemp) {
2127 error = EIO;
2128 break;
2129 }
2130 *u.ddesc = *dtemp;
2131 break;
2132
2133 case USB_GET_CONFIG_DESC:
2134 ctemp = usbd_get_config_descriptor(f->udev);
2135 if (!ctemp) {
2136 error = EIO;
2137 break;
2138 }
2139 *u.cdesc = *ctemp;
2140 break;
2141
2142 case USB_GET_FULL_DESC:
2143 error = ugen_get_cdesc(f, addr);
2144 break;
2145
2146 case USB_GET_STRING_DESC:
2147 error = ugen_get_sdesc(f, addr);
2148 break;
2149
2150 case USB_GET_IFACE_DRIVER:
2151 error = ugen_get_iface_driver(f, addr);
2152 break;
2153
2154 case USB_REQUEST:
2155 case USB_DO_REQUEST:
2156 if (!(fflags & FWRITE)) {
2157 error = EPERM;
2158 break;
2159 }
2160 error = ugen_do_request(f, addr);
2161 break;
2162
2163 case USB_DEVICEINFO:
2164 case USB_GET_DEVICEINFO:
2165 error = usb_gen_fill_deviceinfo(f, addr);
2166 break;
2167
2168 case USB_DEVICESTATS:
2169 for (n = 0; n != 4; n++) {
2170
2171 u.stat->uds_requests_fail[n] =
2172 f->udev->bus->stats_err.uds_requests[n];
2173
2174 u.stat->uds_requests_ok[n] =
2175 f->udev->bus->stats_ok.uds_requests[n];
2176 }
2177 break;
2178
2179 case USB_DEVICEENUMERATE:
2180 error = ugen_re_enumerate(f);
2181 break;
2182
2183 case USB_GET_PLUGTIME:
2184 *u.ptime = f->udev->plugtime;
2185 break;
2186
2187 case USB_CLAIM_INTERFACE:
2188 case USB_RELEASE_INTERFACE:
2189 /* TODO */
2190 break;
2191
2192 case USB_IFACE_DRIVER_ACTIVE:
2193
2194 n = *u.pint & 0xFF;
2195
2196 iface = usbd_get_iface(f->udev, n);
2197
2198 if (iface && iface->subdev)
2199 error = 0;
2200 else
2201 error = ENXIO;
2202 break;
2203
2204 case USB_IFACE_DRIVER_DETACH:
2205
2206 error = priv_check(curthread, PRIV_DRIVER);
2207
2208 if (error)
2209 break;
2210
2211 n = *u.pint & 0xFF;
2212
2213 if (n == USB_IFACE_INDEX_ANY) {
2214 error = EINVAL;
2215 break;
2216 }
2217
2218 /*
2219 * Detach the currently attached driver.
2220 */
2221 usb_detach_device(f->udev, n, 0);
2222
2223 /*
2224 * Set parent to self, this should keep attach away
2225 * until the next set configuration event.
2226 */
2227 usbd_set_parent_iface(f->udev, n, n);
2228 break;
2229
2230 case USB_SET_POWER_MODE:
2231 error = ugen_set_power_mode(f, *u.pint);
2232 break;
2233
2234 case USB_GET_POWER_MODE:
2235 *u.pint = ugen_get_power_mode(f);
2236 break;
2237
2238 case USB_GET_DEV_PORT_PATH:
2239 error = ugen_get_port_path(f, u.dpp);
2240 break;
2241
2242 case USB_GET_POWER_USAGE:
2243 *u.pint = ugen_get_power_usage(f);
2244 break;
2245
2246 case USB_SET_PORT_ENABLE:
2247 error = ugen_do_port_feature(f,
2248 *u.pint, 1, UHF_PORT_ENABLE);
2249 break;
2250
2251 case USB_SET_PORT_DISABLE:
2252 error = ugen_do_port_feature(f,
2253 *u.pint, 0, UHF_PORT_ENABLE);
2254 break;
2255
2256 case USB_FS_INIT:
2257 /* verify input parameters */
2258 if (u.pinit->pEndpoints == NULL) {
2259 error = EINVAL;
2260 break;
2261 }
2262 if (u.pinit->ep_index_max > 127) {
2263 error = EINVAL;
2264 break;
2265 }
2266 if (u.pinit->ep_index_max == 0) {
2267 error = EINVAL;
2268 break;
2269 }
2270 if (f->fs_xfer != NULL) {
2271 error = EBUSY;
2272 break;
2273 }
2274 if (f->dev_ep_index != 0) {
2275 error = EINVAL;
2276 break;
2277 }
2278 if (ugen_fifo_in_use(f, fflags)) {
2279 error = EBUSY;
2280 break;
2281 }
2282 error = usb_fifo_alloc_buffer(f, 1, u.pinit->ep_index_max);
2283 if (error) {
2284 break;
2285 }
2286 f->fs_xfer = kmalloc(sizeof(f->fs_xfer[0]) *
2287 u.pinit->ep_index_max, M_USB, M_WAITOK | M_ZERO);
2288 if (f->fs_xfer == NULL) {
2289 usb_fifo_free_buffer(f);
2290 error = ENOMEM;
2291 break;
2292 }
2293 f->fs_ep_max = u.pinit->ep_index_max;
2294 f->fs_ep_ptr = u.pinit->pEndpoints;
2295 break;
2296
2297 case USB_FS_UNINIT:
2298 if (u.puninit->dummy != 0) {
2299 error = EINVAL;
2300 break;
2301 }
2302 error = ugen_fs_uninit(f);
2303 break;
2304
2305 default:
2306 lockmgr(f->priv_lock, LK_EXCLUSIVE);
2307 error = ugen_iface_ioctl(f, cmd, addr, fflags);
2308 lockmgr(f->priv_lock, LK_RELEASE);
2309 break;
2310 }
2311 DPRINTFN(6, "error=%d\n", error);
2312 return (error);
2313 }
2314
2315 static void
2316 ugen_ctrl_fs_callback(struct usb_xfer *xfer, usb_error_t error)
2317 {
2318 ; /* workaround for a bug in "indent" */
2319
2320 DPRINTF("st=%u alen=%u aframes=%u\n",
2321 USB_GET_STATE(xfer), xfer->actlen, xfer->aframes);
2322
2323 switch (USB_GET_STATE(xfer)) {
2324 case USB_ST_SETUP:
2325 usbd_transfer_submit(xfer);
2326 break;
2327 default:
2328 ugen_fs_set_complete(xfer->priv_sc, USB_P2U(xfer->priv_fifo));
2329 break;
2330 }
2331 }
2332 #endif /* USB_HAVE_UGEN */
DragonFly BSD