1 /* $FreeBSD: releng/10.0/sys/dev/usb/usb_generic.c 257375 2013-10-30 08:05:39Z 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 if (f->udev->curr_config_index == index) {
620 /* no change needed */
621 return (0);
622 }
623 /* make sure all FIFO's are gone */
624 /* else there can be a deadlock */
625 if (ugen_fs_uninit(f)) {
626 /* ignore any errors */
627 DPRINTFN(6, "no FIFOs\n");
628 }
629 /* change setting - will free generic FIFOs, if any */
630 if (usbd_set_config_index(f->udev, index)) {
631 return (EIO);
632 }
633 /* probe and attach */
634 if (usb_probe_and_attach(f->udev, USB_IFACE_INDEX_ANY)) {
635 return (EIO);
636 }
637 return (0);
638 }
639
640 static int
641 ugen_set_interface(struct usb_fifo *f,
642 uint8_t iface_index, uint8_t alt_index)
643 {
644 DPRINTFN(2, "%u, %u\n", iface_index, alt_index);
645
646 if (f->udev->flags.usb_mode != USB_MODE_HOST) {
647 /* not possible in device side mode */
648 return (ENOTTY);
649 }
650 /* make sure all FIFO's are gone */
651 /* else there can be a deadlock */
652 if (ugen_fs_uninit(f)) {
653 /* ignore any errors */
654 DPRINTFN(6, "no FIFOs\n");
655 }
656 /* change setting - will free generic FIFOs, if any */
657 if (usbd_set_alt_interface_index(f->udev, iface_index, alt_index)) {
658 return (EIO);
659 }
660 /* probe and attach */
661 if (usb_probe_and_attach(f->udev, iface_index)) {
662 return (EIO);
663 }
664 return (0);
665 }
666
667 /*------------------------------------------------------------------------*
668 * ugen_get_cdesc
669 *
670 * This function will retrieve the complete configuration descriptor
671 * at the given index.
672 *------------------------------------------------------------------------*/
673 static int
674 ugen_get_cdesc(struct usb_fifo *f, struct usb_gen_descriptor *ugd)
675 {
676 struct usb_config_descriptor *cdesc;
677 struct usb_device *udev = f->udev;
678 int error;
679 uint16_t len;
680 uint8_t free_data;
681
682 DPRINTFN(6, "\n");
683
684 if (ugd->ugd_data == NULL) {
685 /* userland pointer should not be zero */
686 return (EINVAL);
687 }
688 if ((ugd->ugd_config_index == USB_UNCONFIG_INDEX) ||
689 (ugd->ugd_config_index == udev->curr_config_index)) {
690 cdesc = usbd_get_config_descriptor(udev);
691 if (cdesc == NULL)
692 return (ENXIO);
693 free_data = 0;
694
695 } else {
696 #if (USB_HAVE_FIXED_CONFIG == 0)
697 if (usbd_req_get_config_desc_full(udev,
698 NULL, &cdesc, ugd->ugd_config_index)) {
699 return (ENXIO);
700 }
701 free_data = 1;
702 #else
703 /* configuration descriptor data is shared */
704 return (EINVAL);
705 #endif
706 }
707
708 len = UGETW(cdesc->wTotalLength);
709 if (len > ugd->ugd_maxlen) {
710 len = ugd->ugd_maxlen;
711 }
712 DPRINTFN(6, "len=%u\n", len);
713
714 ugd->ugd_actlen = len;
715 ugd->ugd_offset = 0;
716
717 error = copyout(cdesc, ugd->ugd_data, len);
718
719 if (free_data)
720 usbd_free_config_desc(udev, cdesc);
721
722 return (error);
723 }
724
725 /*
726 * This function is called having the enumeration SX locked which
727 * protects the scratch area used.
728 */
729 static int
730 ugen_get_sdesc(struct usb_fifo *f, struct usb_gen_descriptor *ugd)
731 {
732 void *ptr;
733 uint16_t size;
734 int error;
735
736 ptr = f->udev->scratch.data;
737 size = sizeof(f->udev->scratch.data);
738
739 if (usbd_req_get_string_desc(f->udev, NULL, ptr,
740 size, ugd->ugd_lang_id, ugd->ugd_string_index)) {
741 error = EINVAL;
742 } else {
743
744 if (size > ((uint8_t *)ptr)[0]) {
745 size = ((uint8_t *)ptr)[0];
746 }
747 if (size > ugd->ugd_maxlen) {
748 size = ugd->ugd_maxlen;
749 }
750 ugd->ugd_actlen = size;
751 ugd->ugd_offset = 0;
752
753 error = copyout(ptr, ugd->ugd_data, size);
754 }
755 return (error);
756 }
757
758 /*------------------------------------------------------------------------*
759 * ugen_get_iface_driver
760 *
761 * This function generates an USB interface description for userland.
762 *
763 * Returns:
764 * 0: Success
765 * Else: Failure
766 *------------------------------------------------------------------------*/
767 static int
768 ugen_get_iface_driver(struct usb_fifo *f, struct usb_gen_descriptor *ugd)
769 {
770 struct usb_device *udev = f->udev;
771 struct usb_interface *iface;
772 const char *ptr;
773 const char *desc;
774 unsigned int len;
775 unsigned int maxlen;
776 char buf[128];
777 int error;
778
779 DPRINTFN(6, "\n");
780
781 if ((ugd->ugd_data == NULL) || (ugd->ugd_maxlen == 0)) {
782 /* userland pointer should not be zero */
783 return (EINVAL);
784 }
785
786 iface = usbd_get_iface(udev, ugd->ugd_iface_index);
787 if ((iface == NULL) || (iface->idesc == NULL)) {
788 /* invalid interface index */
789 return (EINVAL);
790 }
791
792 /* read out device nameunit string, if any */
793 if ((iface->subdev != NULL) &&
794 device_is_attached(iface->subdev) &&
795 (ptr = device_get_nameunit(iface->subdev)) &&
796 (desc = device_get_desc(iface->subdev))) {
797
798 /* print description */
799 snprintf(buf, sizeof(buf), "%s: <%s>", ptr, desc);
800
801 /* range checks */
802 maxlen = ugd->ugd_maxlen - 1;
803 len = strlen(buf);
804 if (len > maxlen)
805 len = maxlen;
806
807 /* update actual length, including terminating zero */
808 ugd->ugd_actlen = len + 1;
809
810 /* copy out interface description */
811 error = copyout(buf, ugd->ugd_data, ugd->ugd_actlen);
812 } else {
813 /* zero length string is default */
814 error = copyout("", ugd->ugd_data, 1);
815 }
816 return (error);
817 }
818
819 /*------------------------------------------------------------------------*
820 * usb_gen_fill_deviceinfo
821 *
822 * This function dumps information about an USB device to the
823 * structure pointed to by the "di" argument.
824 *
825 * Returns:
826 * 0: Success
827 * Else: Failure
828 *------------------------------------------------------------------------*/
829 static int
830 usb_gen_fill_deviceinfo(struct usb_fifo *f, struct usb_device_info *di)
831 {
832 struct usb_device *udev;
833 struct usb_device *hub;
834
835 udev = f->udev;
836
837 bzero(di, sizeof(di[0]));
838
839 di->udi_bus = device_get_unit(udev->bus->bdev);
840 di->udi_addr = udev->address;
841 di->udi_index = udev->device_index;
842 strlcpy(di->udi_serial, usb_get_serial(udev), sizeof(di->udi_serial));
843 strlcpy(di->udi_vendor, usb_get_manufacturer(udev), sizeof(di->udi_vendor));
844 strlcpy(di->udi_product, usb_get_product(udev), sizeof(di->udi_product));
845 usb_printbcd(di->udi_release, sizeof(di->udi_release),
846 UGETW(udev->ddesc.bcdDevice));
847 di->udi_vendorNo = UGETW(udev->ddesc.idVendor);
848 di->udi_productNo = UGETW(udev->ddesc.idProduct);
849 di->udi_releaseNo = UGETW(udev->ddesc.bcdDevice);
850 di->udi_class = udev->ddesc.bDeviceClass;
851 di->udi_subclass = udev->ddesc.bDeviceSubClass;
852 di->udi_protocol = udev->ddesc.bDeviceProtocol;
853 di->udi_config_no = udev->curr_config_no;
854 di->udi_config_index = udev->curr_config_index;
855 di->udi_power = udev->flags.self_powered ? 0 : udev->power;
856 di->udi_speed = udev->speed;
857 di->udi_mode = udev->flags.usb_mode;
858 di->udi_power_mode = udev->power_mode;
859 di->udi_suspended = udev->flags.peer_suspended;
860
861 hub = udev->parent_hub;
862 if (hub) {
863 di->udi_hubaddr = hub->address;
864 di->udi_hubindex = hub->device_index;
865 di->udi_hubport = udev->port_no;
866 }
867 return (0);
868 }
869
870 /*------------------------------------------------------------------------*
871 * ugen_check_request
872 *
873 * Return values:
874 * 0: Access allowed
875 * Else: No access
876 *------------------------------------------------------------------------*/
877 static int
878 ugen_check_request(struct usb_device *udev, struct usb_device_request *req)
879 {
880 struct usb_endpoint *ep;
881 int error;
882
883 /*
884 * Avoid requests that would damage the bus integrity:
885 */
886 if (((req->bmRequestType == UT_WRITE_DEVICE) &&
887 (req->bRequest == UR_SET_ADDRESS)) ||
888 ((req->bmRequestType == UT_WRITE_DEVICE) &&
889 (req->bRequest == UR_SET_CONFIG)) ||
890 ((req->bmRequestType == UT_WRITE_INTERFACE) &&
891 (req->bRequest == UR_SET_INTERFACE))) {
892 /*
893 * These requests can be useful for testing USB drivers.
894 */
895 error = priv_check(curthread, PRIV_DRIVER);
896 if (error) {
897 return (error);
898 }
899 }
900 /*
901 * Special case - handle clearing of stall
902 */
903 if (req->bmRequestType == UT_WRITE_ENDPOINT) {
904
905 ep = usbd_get_ep_by_addr(udev, req->wIndex[0]);
906 if (ep == NULL) {
907 return (EINVAL);
908 }
909 if ((req->bRequest == UR_CLEAR_FEATURE) &&
910 (UGETW(req->wValue) == UF_ENDPOINT_HALT)) {
911 usbd_clear_data_toggle(udev, ep);
912 }
913 }
914 /* TODO: add more checks to verify the interface index */
915
916 return (0);
917 }
918
919 int
920 ugen_do_request(struct usb_fifo *f, struct usb_ctl_request *ur)
921 {
922 int error;
923 uint16_t len;
924 uint16_t actlen;
925
926 if (ugen_check_request(f->udev, &ur->ucr_request)) {
927 return (EPERM);
928 }
929 len = UGETW(ur->ucr_request.wLength);
930
931 /* check if "ucr_data" is valid */
932 if (len != 0) {
933 if (ur->ucr_data == NULL) {
934 return (EFAULT);
935 }
936 }
937 /* do the USB request */
938 error = usbd_do_request_flags
939 (f->udev, NULL, &ur->ucr_request, ur->ucr_data,
940 (ur->ucr_flags & USB_SHORT_XFER_OK) |
941 USB_USER_DATA_PTR, &actlen,
942 USB_DEFAULT_TIMEOUT);
943
944 ur->ucr_actlen = actlen;
945
946 if (error) {
947 error = EIO;
948 }
949 return (error);
950 }
951
952 /*------------------------------------------------------------------------
953 * ugen_re_enumerate
954 *------------------------------------------------------------------------*/
955 static int
956 ugen_re_enumerate(struct usb_fifo *f)
957 {
958 struct usb_device *udev = f->udev;
959 int error;
960
961 /*
962 * This request can be useful for testing USB drivers:
963 */
964 error = priv_check(curthread, PRIV_DRIVER);
965 if (error) {
966 return (error);
967 }
968 if (udev->flags.usb_mode != USB_MODE_HOST) {
969 /* not possible in device side mode */
970 DPRINTFN(6, "device mode\n");
971 return (ENOTTY);
972 }
973 if (udev->parent_hub == NULL) {
974 /* the root HUB cannot be re-enumerated */
975 DPRINTFN(6, "cannot reset root HUB\n");
976 return (EINVAL);
977 }
978 /* make sure all FIFO's are gone */
979 /* else there can be a deadlock */
980 if (ugen_fs_uninit(f)) {
981 /* ignore any errors */
982 DPRINTFN(6, "no FIFOs\n");
983 }
984 /* start re-enumeration of device */
985 usbd_start_re_enumerate(udev);
986 return (0);
987 }
988
989 int
990 ugen_fs_uninit(struct usb_fifo *f)
991 {
992 if (f->fs_xfer == NULL) {
993 return (EINVAL);
994 }
995 usbd_transfer_unsetup(f->fs_xfer, f->fs_ep_max);
996 free(f->fs_xfer, M_USB);
997 f->fs_xfer = NULL;
998 f->fs_ep_max = 0;
999 f->fs_ep_ptr = NULL;
1000 f->flag_iscomplete = 0;
1001 usb_fifo_free_buffer(f);
1002 return (0);
1003 }
1004
1005 static uint8_t
1006 ugen_fs_get_complete(struct usb_fifo *f, uint8_t *pindex)
1007 {
1008 struct usb_mbuf *m;
1009
1010 USB_IF_DEQUEUE(&f->used_q, m);
1011
1012 if (m) {
1013 *pindex = *((uint8_t *)(m->cur_data_ptr));
1014
1015 USB_IF_ENQUEUE(&f->free_q, m);
1016
1017 return (0); /* success */
1018 } else {
1019
1020 *pindex = 0; /* fix compiler warning */
1021
1022 f->flag_iscomplete = 0;
1023 }
1024 return (1); /* failure */
1025 }
1026
1027 static void
1028 ugen_fs_set_complete(struct usb_fifo *f, uint8_t index)
1029 {
1030 struct usb_mbuf *m;
1031
1032 USB_IF_DEQUEUE(&f->free_q, m);
1033
1034 if (m == NULL) {
1035 /* can happen during close */
1036 DPRINTF("out of buffers\n");
1037 return;
1038 }
1039 USB_MBUF_RESET(m);
1040
1041 *((uint8_t *)(m->cur_data_ptr)) = index;
1042
1043 USB_IF_ENQUEUE(&f->used_q, m);
1044
1045 f->flag_iscomplete = 1;
1046
1047 usb_fifo_wakeup(f);
1048 }
1049
1050 static int
1051 ugen_fs_copy_in(struct usb_fifo *f, uint8_t ep_index)
1052 {
1053 struct usb_device_request *req;
1054 struct usb_xfer *xfer;
1055 struct usb_fs_endpoint fs_ep;
1056 void *uaddr; /* userland pointer */
1057 void *kaddr;
1058 usb_frlength_t offset;
1059 usb_frlength_t rem;
1060 usb_frcount_t n;
1061 uint32_t length;
1062 int error;
1063 uint8_t isread;
1064
1065 if (ep_index >= f->fs_ep_max) {
1066 return (EINVAL);
1067 }
1068 xfer = f->fs_xfer[ep_index];
1069 if (xfer == NULL) {
1070 return (EINVAL);
1071 }
1072 mtx_lock(f->priv_mtx);
1073 if (usbd_transfer_pending(xfer)) {
1074 mtx_unlock(f->priv_mtx);
1075 return (EBUSY); /* should not happen */
1076 }
1077 mtx_unlock(f->priv_mtx);
1078
1079 error = copyin(f->fs_ep_ptr +
1080 ep_index, &fs_ep, sizeof(fs_ep));
1081 if (error) {
1082 return (error);
1083 }
1084 /* security checks */
1085
1086 if (fs_ep.nFrames > xfer->max_frame_count) {
1087 xfer->error = USB_ERR_INVAL;
1088 goto complete;
1089 }
1090 if (fs_ep.nFrames == 0) {
1091 xfer->error = USB_ERR_INVAL;
1092 goto complete;
1093 }
1094 error = copyin(fs_ep.ppBuffer,
1095 &uaddr, sizeof(uaddr));
1096 if (error) {
1097 return (error);
1098 }
1099 /* reset first frame */
1100 usbd_xfer_set_frame_offset(xfer, 0, 0);
1101
1102 if (xfer->flags_int.control_xfr) {
1103
1104 req = xfer->frbuffers[0].buffer;
1105
1106 error = copyin(fs_ep.pLength,
1107 &length, sizeof(length));
1108 if (error) {
1109 return (error);
1110 }
1111 if (length != sizeof(*req)) {
1112 xfer->error = USB_ERR_INVAL;
1113 goto complete;
1114 }
1115 if (length != 0) {
1116 error = copyin(uaddr, req, length);
1117 if (error) {
1118 return (error);
1119 }
1120 }
1121 if (ugen_check_request(f->udev, req)) {
1122 xfer->error = USB_ERR_INVAL;
1123 goto complete;
1124 }
1125 usbd_xfer_set_frame_len(xfer, 0, length);
1126
1127 /* Host mode only ! */
1128 if ((req->bmRequestType &
1129 (UT_READ | UT_WRITE)) == UT_READ) {
1130 isread = 1;
1131 } else {
1132 isread = 0;
1133 }
1134 n = 1;
1135 offset = sizeof(*req);
1136
1137 } else {
1138 /* Device and Host mode */
1139 if (USB_GET_DATA_ISREAD(xfer)) {
1140 isread = 1;
1141 } else {
1142 isread = 0;
1143 }
1144 n = 0;
1145 offset = 0;
1146 }
1147
1148 rem = usbd_xfer_max_len(xfer);
1149 xfer->nframes = fs_ep.nFrames;
1150 xfer->timeout = fs_ep.timeout;
1151 if (xfer->timeout > 65535) {
1152 xfer->timeout = 65535;
1153 }
1154 if (fs_ep.flags & USB_FS_FLAG_SINGLE_SHORT_OK)
1155 xfer->flags.short_xfer_ok = 1;
1156 else
1157 xfer->flags.short_xfer_ok = 0;
1158
1159 if (fs_ep.flags & USB_FS_FLAG_MULTI_SHORT_OK)
1160 xfer->flags.short_frames_ok = 1;
1161 else
1162 xfer->flags.short_frames_ok = 0;
1163
1164 if (fs_ep.flags & USB_FS_FLAG_FORCE_SHORT)
1165 xfer->flags.force_short_xfer = 1;
1166 else
1167 xfer->flags.force_short_xfer = 0;
1168
1169 if (fs_ep.flags & USB_FS_FLAG_CLEAR_STALL)
1170 usbd_xfer_set_stall(xfer);
1171 else
1172 xfer->flags.stall_pipe = 0;
1173
1174 for (; n != xfer->nframes; n++) {
1175
1176 error = copyin(fs_ep.pLength + n,
1177 &length, sizeof(length));
1178 if (error) {
1179 break;
1180 }
1181 usbd_xfer_set_frame_len(xfer, n, length);
1182
1183 if (length > rem) {
1184 xfer->error = USB_ERR_INVAL;
1185 goto complete;
1186 }
1187 rem -= length;
1188
1189 if (!isread) {
1190
1191 /* we need to know the source buffer */
1192 error = copyin(fs_ep.ppBuffer + n,
1193 &uaddr, sizeof(uaddr));
1194 if (error) {
1195 break;
1196 }
1197 if (xfer->flags_int.isochronous_xfr) {
1198 /* get kernel buffer address */
1199 kaddr = xfer->frbuffers[0].buffer;
1200 kaddr = USB_ADD_BYTES(kaddr, offset);
1201 } else {
1202 /* set current frame offset */
1203 usbd_xfer_set_frame_offset(xfer, offset, n);
1204
1205 /* get kernel buffer address */
1206 kaddr = xfer->frbuffers[n].buffer;
1207 }
1208
1209 /* move data */
1210 error = copyin(uaddr, kaddr, length);
1211 if (error) {
1212 break;
1213 }
1214 }
1215 offset += length;
1216 }
1217 return (error);
1218
1219 complete:
1220 mtx_lock(f->priv_mtx);
1221 ugen_fs_set_complete(f, ep_index);
1222 mtx_unlock(f->priv_mtx);
1223 return (0);
1224 }
1225
1226 static int
1227 ugen_fs_copy_out(struct usb_fifo *f, uint8_t ep_index)
1228 {
1229 struct usb_device_request *req;
1230 struct usb_xfer *xfer;
1231 struct usb_fs_endpoint fs_ep;
1232 struct usb_fs_endpoint *fs_ep_uptr; /* userland ptr */
1233 void *uaddr; /* userland ptr */
1234 void *kaddr;
1235 usb_frlength_t offset;
1236 usb_frlength_t rem;
1237 usb_frcount_t n;
1238 uint32_t length;
1239 uint32_t temp;
1240 int error;
1241 uint8_t isread;
1242
1243 if (ep_index >= f->fs_ep_max)
1244 return (EINVAL);
1245
1246 xfer = f->fs_xfer[ep_index];
1247 if (xfer == NULL)
1248 return (EINVAL);
1249
1250 mtx_lock(f->priv_mtx);
1251 if (usbd_transfer_pending(xfer)) {
1252 mtx_unlock(f->priv_mtx);
1253 return (EBUSY); /* should not happen */
1254 }
1255 mtx_unlock(f->priv_mtx);
1256
1257 fs_ep_uptr = f->fs_ep_ptr + ep_index;
1258 error = copyin(fs_ep_uptr, &fs_ep, sizeof(fs_ep));
1259 if (error) {
1260 return (error);
1261 }
1262 fs_ep.status = xfer->error;
1263 fs_ep.aFrames = xfer->aframes;
1264 fs_ep.isoc_time_complete = xfer->isoc_time_complete;
1265 if (xfer->error) {
1266 goto complete;
1267 }
1268 if (xfer->flags_int.control_xfr) {
1269 req = xfer->frbuffers[0].buffer;
1270
1271 /* Host mode only ! */
1272 if ((req->bmRequestType & (UT_READ | UT_WRITE)) == UT_READ) {
1273 isread = 1;
1274 } else {
1275 isread = 0;
1276 }
1277 if (xfer->nframes == 0)
1278 n = 0; /* should never happen */
1279 else
1280 n = 1;
1281 } else {
1282 /* Device and Host mode */
1283 if (USB_GET_DATA_ISREAD(xfer)) {
1284 isread = 1;
1285 } else {
1286 isread = 0;
1287 }
1288 n = 0;
1289 }
1290
1291 /* Update lengths and copy out data */
1292
1293 rem = usbd_xfer_max_len(xfer);
1294 offset = 0;
1295
1296 for (; n != xfer->nframes; n++) {
1297
1298 /* get initial length into "temp" */
1299 error = copyin(fs_ep.pLength + n,
1300 &temp, sizeof(temp));
1301 if (error) {
1302 return (error);
1303 }
1304 if (temp > rem) {
1305 /* the userland length has been corrupted */
1306 DPRINTF("corrupt userland length "
1307 "%u > %u\n", temp, rem);
1308 fs_ep.status = USB_ERR_INVAL;
1309 goto complete;
1310 }
1311 rem -= temp;
1312
1313 /* get actual transfer length */
1314 length = xfer->frlengths[n];
1315 if (length > temp) {
1316 /* data overflow */
1317 fs_ep.status = USB_ERR_INVAL;
1318 DPRINTF("data overflow %u > %u\n",
1319 length, temp);
1320 goto complete;
1321 }
1322 if (isread) {
1323
1324 /* we need to know the destination buffer */
1325 error = copyin(fs_ep.ppBuffer + n,
1326 &uaddr, sizeof(uaddr));
1327 if (error) {
1328 return (error);
1329 }
1330 if (xfer->flags_int.isochronous_xfr) {
1331 /* only one frame buffer */
1332 kaddr = USB_ADD_BYTES(
1333 xfer->frbuffers[0].buffer, offset);
1334 } else {
1335 /* multiple frame buffers */
1336 kaddr = xfer->frbuffers[n].buffer;
1337 }
1338
1339 /* move data */
1340 error = copyout(kaddr, uaddr, length);
1341 if (error) {
1342 return (error);
1343 }
1344 }
1345 /*
1346 * Update offset according to initial length, which is
1347 * needed by isochronous transfers!
1348 */
1349 offset += temp;
1350
1351 /* update length */
1352 error = copyout(&length,
1353 fs_ep.pLength + n, sizeof(length));
1354 if (error) {
1355 return (error);
1356 }
1357 }
1358
1359 complete:
1360 /* update "aFrames" */
1361 error = copyout(&fs_ep.aFrames, &fs_ep_uptr->aFrames,
1362 sizeof(fs_ep.aFrames));
1363 if (error)
1364 goto done;
1365
1366 /* update "isoc_time_complete" */
1367 error = copyout(&fs_ep.isoc_time_complete,
1368 &fs_ep_uptr->isoc_time_complete,
1369 sizeof(fs_ep.isoc_time_complete));
1370 if (error)
1371 goto done;
1372 /* update "status" */
1373 error = copyout(&fs_ep.status, &fs_ep_uptr->status,
1374 sizeof(fs_ep.status));
1375 done:
1376 return (error);
1377 }
1378
1379 static uint8_t
1380 ugen_fifo_in_use(struct usb_fifo *f, int fflags)
1381 {
1382 struct usb_fifo *f_rx;
1383 struct usb_fifo *f_tx;
1384
1385 f_rx = f->udev->fifo[(f->fifo_index & ~1) + USB_FIFO_RX];
1386 f_tx = f->udev->fifo[(f->fifo_index & ~1) + USB_FIFO_TX];
1387
1388 if ((fflags & FREAD) && f_rx &&
1389 (f_rx->xfer[0] || f_rx->xfer[1])) {
1390 return (1); /* RX FIFO in use */
1391 }
1392 if ((fflags & FWRITE) && f_tx &&
1393 (f_tx->xfer[0] || f_tx->xfer[1])) {
1394 return (1); /* TX FIFO in use */
1395 }
1396 return (0); /* not in use */
1397 }
1398
1399 static int
1400 ugen_ioctl(struct usb_fifo *f, u_long cmd, void *addr, int fflags)
1401 {
1402 struct usb_config usb_config[1];
1403 struct usb_device_request req;
1404 union {
1405 struct usb_fs_complete *pcomp;
1406 struct usb_fs_start *pstart;
1407 struct usb_fs_stop *pstop;
1408 struct usb_fs_open *popen;
1409 struct usb_fs_open_stream *popen_stream;
1410 struct usb_fs_close *pclose;
1411 struct usb_fs_clear_stall_sync *pstall;
1412 void *addr;
1413 } u;
1414 struct usb_endpoint *ep;
1415 struct usb_endpoint_descriptor *ed;
1416 struct usb_xfer *xfer;
1417 int error = 0;
1418 uint8_t iface_index;
1419 uint8_t isread;
1420 uint8_t ep_index;
1421 uint8_t pre_scale;
1422
1423 u.addr = addr;
1424
1425 DPRINTFN(6, "cmd=0x%08lx\n", cmd);
1426
1427 switch (cmd) {
1428 case USB_FS_COMPLETE:
1429 mtx_lock(f->priv_mtx);
1430 error = ugen_fs_get_complete(f, &ep_index);
1431 mtx_unlock(f->priv_mtx);
1432
1433 if (error) {
1434 error = EBUSY;
1435 break;
1436 }
1437 u.pcomp->ep_index = ep_index;
1438 error = ugen_fs_copy_out(f, u.pcomp->ep_index);
1439 break;
1440
1441 case USB_FS_START:
1442 error = ugen_fs_copy_in(f, u.pstart->ep_index);
1443 if (error)
1444 break;
1445 mtx_lock(f->priv_mtx);
1446 xfer = f->fs_xfer[u.pstart->ep_index];
1447 usbd_transfer_start(xfer);
1448 mtx_unlock(f->priv_mtx);
1449 break;
1450
1451 case USB_FS_STOP:
1452 if (u.pstop->ep_index >= f->fs_ep_max) {
1453 error = EINVAL;
1454 break;
1455 }
1456 mtx_lock(f->priv_mtx);
1457 xfer = f->fs_xfer[u.pstart->ep_index];
1458 if (usbd_transfer_pending(xfer)) {
1459 usbd_transfer_stop(xfer);
1460 /*
1461 * Check if the USB transfer was stopped
1462 * before it was even started. Else a cancel
1463 * callback will be pending.
1464 */
1465 if (!xfer->flags_int.transferring) {
1466 ugen_fs_set_complete(xfer->priv_sc,
1467 USB_P2U(xfer->priv_fifo));
1468 }
1469 }
1470 mtx_unlock(f->priv_mtx);
1471 break;
1472
1473 case USB_FS_OPEN:
1474 case USB_FS_OPEN_STREAM:
1475 if (u.popen->ep_index >= f->fs_ep_max) {
1476 error = EINVAL;
1477 break;
1478 }
1479 if (f->fs_xfer[u.popen->ep_index] != NULL) {
1480 error = EBUSY;
1481 break;
1482 }
1483 if (u.popen->max_bufsize > USB_FS_MAX_BUFSIZE) {
1484 u.popen->max_bufsize = USB_FS_MAX_BUFSIZE;
1485 }
1486 if (u.popen->max_frames & USB_FS_MAX_FRAMES_PRE_SCALE) {
1487 pre_scale = 1;
1488 u.popen->max_frames &= ~USB_FS_MAX_FRAMES_PRE_SCALE;
1489 } else {
1490 pre_scale = 0;
1491 }
1492 if (u.popen->max_frames > USB_FS_MAX_FRAMES) {
1493 u.popen->max_frames = USB_FS_MAX_FRAMES;
1494 break;
1495 }
1496 if (u.popen->max_frames == 0) {
1497 error = EINVAL;
1498 break;
1499 }
1500 ep = usbd_get_ep_by_addr(f->udev, u.popen->ep_no);
1501 if (ep == NULL) {
1502 error = EINVAL;
1503 break;
1504 }
1505 ed = ep->edesc;
1506 if (ed == NULL) {
1507 error = ENXIO;
1508 break;
1509 }
1510 iface_index = ep->iface_index;
1511
1512 memset(usb_config, 0, sizeof(usb_config));
1513
1514 usb_config[0].type = ed->bmAttributes & UE_XFERTYPE;
1515 usb_config[0].endpoint = ed->bEndpointAddress & UE_ADDR;
1516 usb_config[0].direction = ed->bEndpointAddress & (UE_DIR_OUT | UE_DIR_IN);
1517 usb_config[0].interval = USB_DEFAULT_INTERVAL;
1518 usb_config[0].flags.proxy_buffer = 1;
1519 if (pre_scale != 0)
1520 usb_config[0].flags.pre_scale_frames = 1;
1521 usb_config[0].callback = &ugen_ctrl_fs_callback;
1522 usb_config[0].timeout = 0; /* no timeout */
1523 usb_config[0].frames = u.popen->max_frames;
1524 usb_config[0].bufsize = u.popen->max_bufsize;
1525 usb_config[0].usb_mode = USB_MODE_DUAL; /* both modes */
1526 if (cmd == USB_FS_OPEN_STREAM)
1527 usb_config[0].stream_id = u.popen_stream->stream_id;
1528
1529 if (usb_config[0].type == UE_CONTROL) {
1530 if (f->udev->flags.usb_mode != USB_MODE_HOST) {
1531 error = EINVAL;
1532 break;
1533 }
1534 } else {
1535
1536 isread = ((usb_config[0].endpoint &
1537 (UE_DIR_IN | UE_DIR_OUT)) == UE_DIR_IN);
1538
1539 if (f->udev->flags.usb_mode != USB_MODE_HOST) {
1540 isread = !isread;
1541 }
1542 /* check permissions */
1543 if (isread) {
1544 if (!(fflags & FREAD)) {
1545 error = EPERM;
1546 break;
1547 }
1548 } else {
1549 if (!(fflags & FWRITE)) {
1550 error = EPERM;
1551 break;
1552 }
1553 }
1554 }
1555 error = usbd_transfer_setup(f->udev, &iface_index,
1556 f->fs_xfer + u.popen->ep_index, usb_config, 1,
1557 f, f->priv_mtx);
1558 if (error == 0) {
1559 /* update maximums */
1560 u.popen->max_packet_length =
1561 f->fs_xfer[u.popen->ep_index]->max_frame_size;
1562 u.popen->max_bufsize =
1563 f->fs_xfer[u.popen->ep_index]->max_data_length;
1564 /* update number of frames */
1565 u.popen->max_frames =
1566 f->fs_xfer[u.popen->ep_index]->nframes;
1567 /* store index of endpoint */
1568 f->fs_xfer[u.popen->ep_index]->priv_fifo =
1569 ((uint8_t *)0) + u.popen->ep_index;
1570 } else {
1571 error = ENOMEM;
1572 }
1573 break;
1574
1575 case USB_FS_CLOSE:
1576 if (u.pclose->ep_index >= f->fs_ep_max) {
1577 error = EINVAL;
1578 break;
1579 }
1580 if (f->fs_xfer[u.pclose->ep_index] == NULL) {
1581 error = EINVAL;
1582 break;
1583 }
1584 usbd_transfer_unsetup(f->fs_xfer + u.pclose->ep_index, 1);
1585 break;
1586
1587 case USB_FS_CLEAR_STALL_SYNC:
1588 if (u.pstall->ep_index >= f->fs_ep_max) {
1589 error = EINVAL;
1590 break;
1591 }
1592 if (f->fs_xfer[u.pstall->ep_index] == NULL) {
1593 error = EINVAL;
1594 break;
1595 }
1596 if (f->udev->flags.usb_mode != USB_MODE_HOST) {
1597 error = EINVAL;
1598 break;
1599 }
1600 mtx_lock(f->priv_mtx);
1601 error = usbd_transfer_pending(f->fs_xfer[u.pstall->ep_index]);
1602 mtx_unlock(f->priv_mtx);
1603
1604 if (error) {
1605 return (EBUSY);
1606 }
1607 ep = f->fs_xfer[u.pstall->ep_index]->endpoint;
1608
1609 /* setup a clear-stall packet */
1610 req.bmRequestType = UT_WRITE_ENDPOINT;
1611 req.bRequest = UR_CLEAR_FEATURE;
1612 USETW(req.wValue, UF_ENDPOINT_HALT);
1613 req.wIndex[0] = ep->edesc->bEndpointAddress;
1614 req.wIndex[1] = 0;
1615 USETW(req.wLength, 0);
1616
1617 error = usbd_do_request(f->udev, NULL, &req, NULL);
1618 if (error == 0) {
1619 usbd_clear_data_toggle(f->udev, ep);
1620 } else {
1621 error = ENXIO;
1622 }
1623 break;
1624
1625 default:
1626 error = ENOIOCTL;
1627 break;
1628 }
1629
1630 DPRINTFN(6, "error=%d\n", error);
1631
1632 return (error);
1633 }
1634
1635 static int
1636 ugen_set_short_xfer(struct usb_fifo *f, void *addr)
1637 {
1638 uint8_t t;
1639
1640 if (*(int *)addr)
1641 t = 1;
1642 else
1643 t = 0;
1644
1645 if (f->flag_short == t) {
1646 /* same value like before - accept */
1647 return (0);
1648 }
1649 if (f->xfer[0] || f->xfer[1]) {
1650 /* cannot change this during transfer */
1651 return (EBUSY);
1652 }
1653 f->flag_short = t;
1654 return (0);
1655 }
1656
1657 static int
1658 ugen_set_timeout(struct usb_fifo *f, void *addr)
1659 {
1660 f->timeout = *(int *)addr;
1661 if (f->timeout > 65535) {
1662 /* limit user input */
1663 f->timeout = 65535;
1664 }
1665 return (0);
1666 }
1667
1668 static int
1669 ugen_get_frame_size(struct usb_fifo *f, void *addr)
1670 {
1671 if (f->xfer[0]) {
1672 *(int *)addr = f->xfer[0]->max_frame_size;
1673 } else {
1674 return (EINVAL);
1675 }
1676 return (0);
1677 }
1678
1679 static int
1680 ugen_set_buffer_size(struct usb_fifo *f, void *addr)
1681 {
1682 usb_frlength_t t;
1683
1684 if (*(int *)addr < 0)
1685 t = 0; /* use "wMaxPacketSize" */
1686 else if (*(int *)addr < (256 * 1024))
1687 t = *(int *)addr;
1688 else
1689 t = 256 * 1024;
1690
1691 if (f->bufsize == t) {
1692 /* same value like before - accept */
1693 return (0);
1694 }
1695 if (f->xfer[0] || f->xfer[1]) {
1696 /* cannot change this during transfer */
1697 return (EBUSY);
1698 }
1699 f->bufsize = t;
1700 return (0);
1701 }
1702
1703 static int
1704 ugen_get_buffer_size(struct usb_fifo *f, void *addr)
1705 {
1706 *(int *)addr = f->bufsize;
1707 return (0);
1708 }
1709
1710 static int
1711 ugen_get_iface_desc(struct usb_fifo *f,
1712 struct usb_interface_descriptor *idesc)
1713 {
1714 struct usb_interface *iface;
1715
1716 iface = usbd_get_iface(f->udev, f->iface_index);
1717 if (iface && iface->idesc) {
1718 *idesc = *(iface->idesc);
1719 } else {
1720 return (EIO);
1721 }
1722 return (0);
1723 }
1724
1725 static int
1726 ugen_get_endpoint_desc(struct usb_fifo *f,
1727 struct usb_endpoint_descriptor *ed)
1728 {
1729 struct usb_endpoint *ep;
1730
1731 ep = usb_fifo_softc(f);
1732
1733 if (ep && ep->edesc) {
1734 *ed = *ep->edesc;
1735 } else {
1736 return (EINVAL);
1737 }
1738 return (0);
1739 }
1740
1741 static int
1742 ugen_set_power_mode(struct usb_fifo *f, int mode)
1743 {
1744 struct usb_device *udev = f->udev;
1745 int err;
1746 uint8_t old_mode;
1747
1748 if ((udev == NULL) ||
1749 (udev->parent_hub == NULL)) {
1750 return (EINVAL);
1751 }
1752 err = priv_check(curthread, PRIV_DRIVER);
1753 if (err)
1754 return (err);
1755
1756 /* get old power mode */
1757 old_mode = udev->power_mode;
1758
1759 /* if no change, then just return */
1760 if (old_mode == mode)
1761 return (0);
1762
1763 switch (mode) {
1764 case USB_POWER_MODE_OFF:
1765 if (udev->flags.usb_mode == USB_MODE_HOST &&
1766 udev->re_enumerate_wait == USB_RE_ENUM_DONE) {
1767 udev->re_enumerate_wait = USB_RE_ENUM_PWR_OFF;
1768 }
1769 /* set power mode will wake up the explore thread */
1770 break;
1771
1772 case USB_POWER_MODE_ON:
1773 case USB_POWER_MODE_SAVE:
1774 break;
1775
1776 case USB_POWER_MODE_RESUME:
1777 #if USB_HAVE_POWERD
1778 /* let USB-powerd handle resume */
1779 USB_BUS_LOCK(udev->bus);
1780 udev->pwr_save.write_refs++;
1781 udev->pwr_save.last_xfer_time = ticks;
1782 USB_BUS_UNLOCK(udev->bus);
1783
1784 /* set new power mode */
1785 usbd_set_power_mode(udev, USB_POWER_MODE_SAVE);
1786
1787 /* wait for resume to complete */
1788 usb_pause_mtx(NULL, hz / 4);
1789
1790 /* clear write reference */
1791 USB_BUS_LOCK(udev->bus);
1792 udev->pwr_save.write_refs--;
1793 USB_BUS_UNLOCK(udev->bus);
1794 #endif
1795 mode = USB_POWER_MODE_SAVE;
1796 break;
1797
1798 case USB_POWER_MODE_SUSPEND:
1799 #if USB_HAVE_POWERD
1800 /* let USB-powerd handle suspend */
1801 USB_BUS_LOCK(udev->bus);
1802 udev->pwr_save.last_xfer_time = ticks - (256 * hz);
1803 USB_BUS_UNLOCK(udev->bus);
1804 #endif
1805 mode = USB_POWER_MODE_SAVE;
1806 break;
1807
1808 default:
1809 return (EINVAL);
1810 }
1811
1812 if (err)
1813 return (ENXIO); /* I/O failure */
1814
1815 /* if we are powered off we need to re-enumerate first */
1816 if (old_mode == USB_POWER_MODE_OFF) {
1817 if (udev->flags.usb_mode == USB_MODE_HOST &&
1818 udev->re_enumerate_wait == USB_RE_ENUM_DONE) {
1819 udev->re_enumerate_wait = USB_RE_ENUM_START;
1820 }
1821 /* set power mode will wake up the explore thread */
1822 }
1823
1824 /* set new power mode */
1825 usbd_set_power_mode(udev, mode);
1826
1827 return (0); /* success */
1828 }
1829
1830 static int
1831 ugen_get_power_mode(struct usb_fifo *f)
1832 {
1833 struct usb_device *udev = f->udev;
1834
1835 if (udev == NULL)
1836 return (USB_POWER_MODE_ON);
1837
1838 return (udev->power_mode);
1839 }
1840
1841 static int
1842 ugen_get_port_path(struct usb_fifo *f, struct usb_device_port_path *dpp)
1843 {
1844 struct usb_device *udev = f->udev;
1845 struct usb_device *next;
1846 unsigned int nlevel = 0;
1847
1848 if (udev == NULL)
1849 goto error;
1850
1851 dpp->udp_bus = device_get_unit(udev->bus->bdev);
1852 dpp->udp_index = udev->device_index;
1853
1854 /* count port levels */
1855 next = udev;
1856 while (next->parent_hub != NULL) {
1857 nlevel++;
1858 next = next->parent_hub;
1859 }
1860
1861 /* check if too many levels */
1862 if (nlevel > USB_DEVICE_PORT_PATH_MAX)
1863 goto error;
1864
1865 /* store port index array */
1866 next = udev;
1867 while (next->parent_hub != NULL) {
1868 nlevel--;
1869
1870 dpp->udp_port_no[nlevel] = next->port_no;
1871 dpp->udp_port_level = nlevel;
1872
1873 next = next->parent_hub;
1874 }
1875 return (0); /* success */
1876
1877 error:
1878 return (EINVAL); /* failure */
1879 }
1880
1881 static int
1882 ugen_get_power_usage(struct usb_fifo *f)
1883 {
1884 struct usb_device *udev = f->udev;
1885
1886 if (udev == NULL)
1887 return (0);
1888
1889 return (udev->power);
1890 }
1891
1892 static int
1893 ugen_do_port_feature(struct usb_fifo *f, uint8_t port_no,
1894 uint8_t set, uint16_t feature)
1895 {
1896 struct usb_device *udev = f->udev;
1897 struct usb_hub *hub;
1898 int err;
1899
1900 err = priv_check(curthread, PRIV_DRIVER);
1901 if (err) {
1902 return (err);
1903 }
1904 if (port_no == 0) {
1905 return (EINVAL);
1906 }
1907 if ((udev == NULL) ||
1908 (udev->hub == NULL)) {
1909 return (EINVAL);
1910 }
1911 hub = udev->hub;
1912
1913 if (port_no > hub->nports) {
1914 return (EINVAL);
1915 }
1916 if (set)
1917 err = usbd_req_set_port_feature(udev,
1918 NULL, port_no, feature);
1919 else
1920 err = usbd_req_clear_port_feature(udev,
1921 NULL, port_no, feature);
1922
1923 if (err)
1924 return (ENXIO); /* failure */
1925
1926 return (0); /* success */
1927 }
1928
1929 static int
1930 ugen_iface_ioctl(struct usb_fifo *f, u_long cmd, void *addr, int fflags)
1931 {
1932 struct usb_fifo *f_rx;
1933 struct usb_fifo *f_tx;
1934 int error = 0;
1935
1936 f_rx = f->udev->fifo[(f->fifo_index & ~1) + USB_FIFO_RX];
1937 f_tx = f->udev->fifo[(f->fifo_index & ~1) + USB_FIFO_TX];
1938
1939 switch (cmd) {
1940 case USB_SET_RX_SHORT_XFER:
1941 if (fflags & FREAD) {
1942 error = ugen_set_short_xfer(f_rx, addr);
1943 } else {
1944 error = EINVAL;
1945 }
1946 break;
1947
1948 case USB_SET_TX_FORCE_SHORT:
1949 if (fflags & FWRITE) {
1950 error = ugen_set_short_xfer(f_tx, addr);
1951 } else {
1952 error = EINVAL;
1953 }
1954 break;
1955
1956 case USB_SET_RX_TIMEOUT:
1957 if (fflags & FREAD) {
1958 error = ugen_set_timeout(f_rx, addr);
1959 } else {
1960 error = EINVAL;
1961 }
1962 break;
1963
1964 case USB_SET_TX_TIMEOUT:
1965 if (fflags & FWRITE) {
1966 error = ugen_set_timeout(f_tx, addr);
1967 } else {
1968 error = EINVAL;
1969 }
1970 break;
1971
1972 case USB_GET_RX_FRAME_SIZE:
1973 if (fflags & FREAD) {
1974 error = ugen_get_frame_size(f_rx, addr);
1975 } else {
1976 error = EINVAL;
1977 }
1978 break;
1979
1980 case USB_GET_TX_FRAME_SIZE:
1981 if (fflags & FWRITE) {
1982 error = ugen_get_frame_size(f_tx, addr);
1983 } else {
1984 error = EINVAL;
1985 }
1986 break;
1987
1988 case USB_SET_RX_BUFFER_SIZE:
1989 if (fflags & FREAD) {
1990 error = ugen_set_buffer_size(f_rx, addr);
1991 } else {
1992 error = EINVAL;
1993 }
1994 break;
1995
1996 case USB_SET_TX_BUFFER_SIZE:
1997 if (fflags & FWRITE) {
1998 error = ugen_set_buffer_size(f_tx, addr);
1999 } else {
2000 error = EINVAL;
2001 }
2002 break;
2003
2004 case USB_GET_RX_BUFFER_SIZE:
2005 if (fflags & FREAD) {
2006 error = ugen_get_buffer_size(f_rx, addr);
2007 } else {
2008 error = EINVAL;
2009 }
2010 break;
2011
2012 case USB_GET_TX_BUFFER_SIZE:
2013 if (fflags & FWRITE) {
2014 error = ugen_get_buffer_size(f_tx, addr);
2015 } else {
2016 error = EINVAL;
2017 }
2018 break;
2019
2020 case USB_GET_RX_INTERFACE_DESC:
2021 if (fflags & FREAD) {
2022 error = ugen_get_iface_desc(f_rx, addr);
2023 } else {
2024 error = EINVAL;
2025 }
2026 break;
2027
2028 case USB_GET_TX_INTERFACE_DESC:
2029 if (fflags & FWRITE) {
2030 error = ugen_get_iface_desc(f_tx, addr);
2031 } else {
2032 error = EINVAL;
2033 }
2034 break;
2035
2036 case USB_GET_RX_ENDPOINT_DESC:
2037 if (fflags & FREAD) {
2038 error = ugen_get_endpoint_desc(f_rx, addr);
2039 } else {
2040 error = EINVAL;
2041 }
2042 break;
2043
2044 case USB_GET_TX_ENDPOINT_DESC:
2045 if (fflags & FWRITE) {
2046 error = ugen_get_endpoint_desc(f_tx, addr);
2047 } else {
2048 error = EINVAL;
2049 }
2050 break;
2051
2052 case USB_SET_RX_STALL_FLAG:
2053 if ((fflags & FREAD) && (*(int *)addr)) {
2054 f_rx->flag_stall = 1;
2055 }
2056 break;
2057
2058 case USB_SET_TX_STALL_FLAG:
2059 if ((fflags & FWRITE) && (*(int *)addr)) {
2060 f_tx->flag_stall = 1;
2061 }
2062 break;
2063
2064 default:
2065 error = ENOIOCTL;
2066 break;
2067 }
2068 return (error);
2069 }
2070
2071 static int
2072 ugen_ioctl_post(struct usb_fifo *f, u_long cmd, void *addr, int fflags)
2073 {
2074 union {
2075 struct usb_interface_descriptor *idesc;
2076 struct usb_alt_interface *ai;
2077 struct usb_device_descriptor *ddesc;
2078 struct usb_config_descriptor *cdesc;
2079 struct usb_device_stats *stat;
2080 struct usb_fs_init *pinit;
2081 struct usb_fs_uninit *puninit;
2082 struct usb_device_port_path *dpp;
2083 uint32_t *ptime;
2084 void *addr;
2085 int *pint;
2086 } u;
2087 struct usb_device_descriptor *dtemp;
2088 struct usb_config_descriptor *ctemp;
2089 struct usb_interface *iface;
2090 int error = 0;
2091 uint8_t n;
2092
2093 u.addr = addr;
2094
2095 DPRINTFN(6, "cmd=0x%08lx\n", cmd);
2096
2097 switch (cmd) {
2098 case USB_DISCOVER:
2099 usb_needs_explore_all();
2100 break;
2101
2102 case USB_SETDEBUG:
2103 if (!(fflags & FWRITE)) {
2104 error = EPERM;
2105 break;
2106 }
2107 usb_debug = *(int *)addr;
2108 break;
2109
2110 case USB_GET_CONFIG:
2111 *(int *)addr = f->udev->curr_config_index;
2112 break;
2113
2114 case USB_SET_CONFIG:
2115 if (!(fflags & FWRITE)) {
2116 error = EPERM;
2117 break;
2118 }
2119 error = ugen_set_config(f, *(int *)addr);
2120 break;
2121
2122 case USB_GET_ALTINTERFACE:
2123 iface = usbd_get_iface(f->udev,
2124 u.ai->uai_interface_index);
2125 if (iface && iface->idesc) {
2126 u.ai->uai_alt_index = iface->alt_index;
2127 } else {
2128 error = EINVAL;
2129 }
2130 break;
2131
2132 case USB_SET_ALTINTERFACE:
2133 if (!(fflags & FWRITE)) {
2134 error = EPERM;
2135 break;
2136 }
2137 error = ugen_set_interface(f,
2138 u.ai->uai_interface_index, u.ai->uai_alt_index);
2139 break;
2140
2141 case USB_GET_DEVICE_DESC:
2142 dtemp = usbd_get_device_descriptor(f->udev);
2143 if (!dtemp) {
2144 error = EIO;
2145 break;
2146 }
2147 *u.ddesc = *dtemp;
2148 break;
2149
2150 case USB_GET_CONFIG_DESC:
2151 ctemp = usbd_get_config_descriptor(f->udev);
2152 if (!ctemp) {
2153 error = EIO;
2154 break;
2155 }
2156 *u.cdesc = *ctemp;
2157 break;
2158
2159 case USB_GET_FULL_DESC:
2160 error = ugen_get_cdesc(f, addr);
2161 break;
2162
2163 case USB_GET_STRING_DESC:
2164 error = ugen_get_sdesc(f, addr);
2165 break;
2166
2167 case USB_GET_IFACE_DRIVER:
2168 error = ugen_get_iface_driver(f, addr);
2169 break;
2170
2171 case USB_REQUEST:
2172 case USB_DO_REQUEST:
2173 if (!(fflags & FWRITE)) {
2174 error = EPERM;
2175 break;
2176 }
2177 error = ugen_do_request(f, addr);
2178 break;
2179
2180 case USB_DEVICEINFO:
2181 case USB_GET_DEVICEINFO:
2182 error = usb_gen_fill_deviceinfo(f, addr);
2183 break;
2184
2185 case USB_DEVICESTATS:
2186 for (n = 0; n != 4; n++) {
2187
2188 u.stat->uds_requests_fail[n] =
2189 f->udev->bus->stats_err.uds_requests[n];
2190
2191 u.stat->uds_requests_ok[n] =
2192 f->udev->bus->stats_ok.uds_requests[n];
2193 }
2194 break;
2195
2196 case USB_DEVICEENUMERATE:
2197 error = ugen_re_enumerate(f);
2198 break;
2199
2200 case USB_GET_PLUGTIME:
2201 *u.ptime = f->udev->plugtime;
2202 break;
2203
2204 case USB_CLAIM_INTERFACE:
2205 case USB_RELEASE_INTERFACE:
2206 /* TODO */
2207 break;
2208
2209 case USB_IFACE_DRIVER_ACTIVE:
2210
2211 n = *u.pint & 0xFF;
2212
2213 iface = usbd_get_iface(f->udev, n);
2214
2215 if (iface && iface->subdev)
2216 error = 0;
2217 else
2218 error = ENXIO;
2219 break;
2220
2221 case USB_IFACE_DRIVER_DETACH:
2222
2223 error = priv_check(curthread, PRIV_DRIVER);
2224
2225 if (error)
2226 break;
2227
2228 n = *u.pint & 0xFF;
2229
2230 if (n == USB_IFACE_INDEX_ANY) {
2231 error = EINVAL;
2232 break;
2233 }
2234
2235 /*
2236 * Detach the currently attached driver.
2237 */
2238 usb_detach_device(f->udev, n, 0);
2239
2240 /*
2241 * Set parent to self, this should keep attach away
2242 * until the next set configuration event.
2243 */
2244 usbd_set_parent_iface(f->udev, n, n);
2245 break;
2246
2247 case USB_SET_POWER_MODE:
2248 error = ugen_set_power_mode(f, *u.pint);
2249 break;
2250
2251 case USB_GET_POWER_MODE:
2252 *u.pint = ugen_get_power_mode(f);
2253 break;
2254
2255 case USB_GET_DEV_PORT_PATH:
2256 error = ugen_get_port_path(f, u.dpp);
2257 break;
2258
2259 case USB_GET_POWER_USAGE:
2260 *u.pint = ugen_get_power_usage(f);
2261 break;
2262
2263 case USB_SET_PORT_ENABLE:
2264 error = ugen_do_port_feature(f,
2265 *u.pint, 1, UHF_PORT_ENABLE);
2266 break;
2267
2268 case USB_SET_PORT_DISABLE:
2269 error = ugen_do_port_feature(f,
2270 *u.pint, 0, UHF_PORT_ENABLE);
2271 break;
2272
2273 case USB_FS_INIT:
2274 /* verify input parameters */
2275 if (u.pinit->pEndpoints == NULL) {
2276 error = EINVAL;
2277 break;
2278 }
2279 if (u.pinit->ep_index_max > 127) {
2280 error = EINVAL;
2281 break;
2282 }
2283 if (u.pinit->ep_index_max == 0) {
2284 error = EINVAL;
2285 break;
2286 }
2287 if (f->fs_xfer != NULL) {
2288 error = EBUSY;
2289 break;
2290 }
2291 if (f->dev_ep_index != 0) {
2292 error = EINVAL;
2293 break;
2294 }
2295 if (ugen_fifo_in_use(f, fflags)) {
2296 error = EBUSY;
2297 break;
2298 }
2299 error = usb_fifo_alloc_buffer(f, 1, u.pinit->ep_index_max);
2300 if (error) {
2301 break;
2302 }
2303 f->fs_xfer = malloc(sizeof(f->fs_xfer[0]) *
2304 u.pinit->ep_index_max, M_USB, M_WAITOK | M_ZERO);
2305 if (f->fs_xfer == NULL) {
2306 usb_fifo_free_buffer(f);
2307 error = ENOMEM;
2308 break;
2309 }
2310 f->fs_ep_max = u.pinit->ep_index_max;
2311 f->fs_ep_ptr = u.pinit->pEndpoints;
2312 break;
2313
2314 case USB_FS_UNINIT:
2315 if (u.puninit->dummy != 0) {
2316 error = EINVAL;
2317 break;
2318 }
2319 error = ugen_fs_uninit(f);
2320 break;
2321
2322 default:
2323 mtx_lock(f->priv_mtx);
2324 error = ugen_iface_ioctl(f, cmd, addr, fflags);
2325 mtx_unlock(f->priv_mtx);
2326 break;
2327 }
2328 DPRINTFN(6, "error=%d\n", error);
2329 return (error);
2330 }
2331
2332 static void
2333 ugen_ctrl_fs_callback(struct usb_xfer *xfer, usb_error_t error)
2334 {
2335 ; /* workaround for a bug in "indent" */
2336
2337 DPRINTF("st=%u alen=%u aframes=%u\n",
2338 USB_GET_STATE(xfer), xfer->actlen, xfer->aframes);
2339
2340 switch (USB_GET_STATE(xfer)) {
2341 case USB_ST_SETUP:
2342 usbd_transfer_submit(xfer);
2343 break;
2344 default:
2345 ugen_fs_set_complete(xfer->priv_sc, USB_P2U(xfer->priv_fifo));
2346 break;
2347 }
2348 }
2349 #endif /* USB_HAVE_UGEN */
Cache object: f8771add95a31ebf8980d708c300974f
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