1/* $FreeBSD: head/sys/dev/usb/usb_generic.c 250201 2013-05-03 07:44:58Z 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
85static usb_callback_t ugen_read_clear_stall_callback;
86static usb_callback_t ugen_write_clear_stall_callback;
87static usb_callback_t ugen_ctrl_read_callback;
88static usb_callback_t ugen_ctrl_write_callback;
89static usb_callback_t ugen_isoc_read_callback;
90static usb_callback_t ugen_isoc_write_callback;
91static usb_callback_t ugen_ctrl_fs_callback;
92
93static usb_fifo_open_t ugen_open;
94static usb_fifo_close_t ugen_close;
95static usb_fifo_ioctl_t ugen_ioctl;
96static usb_fifo_ioctl_t ugen_ioctl_post;
97static usb_fifo_cmd_t ugen_start_read;
98static usb_fifo_cmd_t ugen_start_write;
99static usb_fifo_cmd_t ugen_stop_io;
100
101static int ugen_transfer_setup(struct usb_fifo *,
102 const struct usb_config *, uint8_t);
103static int ugen_open_pipe_write(struct usb_fifo *);
104static int ugen_open_pipe_read(struct usb_fifo *);
105static int ugen_set_config(struct usb_fifo *, uint8_t);
106static int ugen_set_interface(struct usb_fifo *, uint8_t, uint8_t);
107static int ugen_get_cdesc(struct usb_fifo *, struct usb_gen_descriptor *);
108static int ugen_get_sdesc(struct usb_fifo *, struct usb_gen_descriptor *);
109static int ugen_get_iface_driver(struct usb_fifo *f, struct usb_gen_descriptor *ugd);
110static int usb_gen_fill_deviceinfo(struct usb_fifo *,
111 struct usb_device_info *);
112static int ugen_re_enumerate(struct usb_fifo *);
113static int ugen_iface_ioctl(struct usb_fifo *, u_long, void *, int);
114static uint8_t ugen_fs_get_complete(struct usb_fifo *, uint8_t *);
115static int ugen_fs_uninit(struct usb_fifo *f);
116
117/* structures */
118
119struct 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
131static int ugen_debug = 0;
132
133static SYSCTL_NODE(_hw_usb, OID_AUTO, ugen, CTLFLAG_RW, 0, "USB generic");
134SYSCTL_INT(_hw_usb_ugen, OID_AUTO, debug, CTLFLAG_RW | CTLFLAG_TUN, &ugen_debug,
135 0, "Debug level");
136TUNABLE_INT("hw.usb.ugen.debug", &ugen_debug);
137#endif
138
139
140/* prototypes */
141
142static int
143ugen_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
178static int
179ugen_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
212static void
213ugen_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
233static int
234ugen_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
302static int
303ugen_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
373static void
374ugen_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
386static void
387ugen_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
399static void
400ugen_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
407static void
408ugen_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
459static void
460ugen_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
497static void
498ugen_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
514static void
515ugen_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
531static void
532ugen_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:
554tr_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
570static void
571ugen_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:
583tr_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
610static int
611ugen_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
640static int
641ugen_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 *------------------------------------------------------------------------*/
673static int
674ugen_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 }
694 free_data = 0;
695
696 } else {
697 if (usbd_req_get_config_desc_full(udev,
698 NULL, &cdesc, M_USBDEV,
699 ugd->ugd_config_index)) {
700 return (ENXIO);
701 }
702 free_data = 1;
703 }
704
705 len = UGETW(cdesc->wTotalLength);
706 if (len > ugd->ugd_maxlen) {
707 len = ugd->ugd_maxlen;
708 }
709 DPRINTFN(6, "len=%u\n", len);
710
711 ugd->ugd_actlen = len;
712 ugd->ugd_offset = 0;
713
714 error = copyout(cdesc, ugd->ugd_data, len);
715
716 if (free_data) {
717 free(cdesc, M_USBDEV);
718 }
719 return (error);
720}
721
722/*
723 * This function is called having the enumeration SX locked which
724 * protects the scratch area used.
725 */
726static int
727ugen_get_sdesc(struct usb_fifo *f, struct usb_gen_descriptor *ugd)
728{
729 void *ptr;
730 uint16_t size;
731 int error;
732
733 ptr = f->udev->scratch.data;
734 size = sizeof(f->udev->scratch.data);
735
736 if (usbd_req_get_string_desc(f->udev, NULL, ptr,
737 size, ugd->ugd_lang_id, ugd->ugd_string_index)) {
738 error = EINVAL;
739 } else {
740
741 if (size > ((uint8_t *)ptr)[0]) {
742 size = ((uint8_t *)ptr)[0];
743 }
744 if (size > ugd->ugd_maxlen) {
745 size = ugd->ugd_maxlen;
746 }
747 ugd->ugd_actlen = size;
748 ugd->ugd_offset = 0;
749
750 error = copyout(ptr, ugd->ugd_data, size);
751 }
752 return (error);
753}
754
755/*------------------------------------------------------------------------*
756 * ugen_get_iface_driver
757 *
758 * This function generates an USB interface description for userland.
759 *
760 * Returns:
761 * 0: Success
762 * Else: Failure
763 *------------------------------------------------------------------------*/
764static int
765ugen_get_iface_driver(struct usb_fifo *f, struct usb_gen_descriptor *ugd)
766{
767 struct usb_device *udev = f->udev;
768 struct usb_interface *iface;
769 const char *ptr;
770 const char *desc;
771 unsigned int len;
772 unsigned int maxlen;
773 char buf[128];
774 int error;
775
776 DPRINTFN(6, "\n");
777
778 if ((ugd->ugd_data == NULL) || (ugd->ugd_maxlen == 0)) {
779 /* userland pointer should not be zero */
780 return (EINVAL);
781 }
782
783 iface = usbd_get_iface(udev, ugd->ugd_iface_index);
784 if ((iface == NULL) || (iface->idesc == NULL)) {
785 /* invalid interface index */
786 return (EINVAL);
787 }
788
789 /* read out device nameunit string, if any */
790 if ((iface->subdev != NULL) &&
791 device_is_attached(iface->subdev) &&
792 (ptr = device_get_nameunit(iface->subdev)) &&
793 (desc = device_get_desc(iface->subdev))) {
794
795 /* print description */
796 snprintf(buf, sizeof(buf), "%s: <%s>", ptr, desc);
797
798 /* range checks */
799 maxlen = ugd->ugd_maxlen - 1;
800 len = strlen(buf);
801 if (len > maxlen)
802 len = maxlen;
803
804 /* update actual length, including terminating zero */
805 ugd->ugd_actlen = len + 1;
806
807 /* copy out interface description */
808 error = copyout(buf, ugd->ugd_data, ugd->ugd_actlen);
809 } else {
810 /* zero length string is default */
811 error = copyout("", ugd->ugd_data, 1);
812 }
813 return (error);
814}
815
816/*------------------------------------------------------------------------*
817 * usb_gen_fill_deviceinfo
818 *
819 * This function dumps information about an USB device to the
820 * structure pointed to by the "di" argument.
821 *
822 * Returns:
823 * 0: Success
824 * Else: Failure
825 *------------------------------------------------------------------------*/
826static int
827usb_gen_fill_deviceinfo(struct usb_fifo *f, struct usb_device_info *di)
828{
829 struct usb_device *udev;
830 struct usb_device *hub;
831
832 udev = f->udev;
833
834 bzero(di, sizeof(di[0]));
835
836 di->udi_bus = device_get_unit(udev->bus->bdev);
837 di->udi_addr = udev->address;
838 di->udi_index = udev->device_index;
839 strlcpy(di->udi_serial, usb_get_serial(udev), sizeof(di->udi_serial));
840 strlcpy(di->udi_vendor, usb_get_manufacturer(udev), sizeof(di->udi_vendor));
841 strlcpy(di->udi_product, usb_get_product(udev), sizeof(di->udi_product));
842 usb_printbcd(di->udi_release, sizeof(di->udi_release),
843 UGETW(udev->ddesc.bcdDevice));
844 di->udi_vendorNo = UGETW(udev->ddesc.idVendor);
845 di->udi_productNo = UGETW(udev->ddesc.idProduct);
846 di->udi_releaseNo = UGETW(udev->ddesc.bcdDevice);
847 di->udi_class = udev->ddesc.bDeviceClass;
848 di->udi_subclass = udev->ddesc.bDeviceSubClass;
849 di->udi_protocol = udev->ddesc.bDeviceProtocol;
850 di->udi_config_no = udev->curr_config_no;
851 di->udi_config_index = udev->curr_config_index;
852 di->udi_power = udev->flags.self_powered ? 0 : udev->power;
853 di->udi_speed = udev->speed;
854 di->udi_mode = udev->flags.usb_mode;
855 di->udi_power_mode = udev->power_mode;
856 di->udi_suspended = udev->flags.peer_suspended;
857
858 hub = udev->parent_hub;
859 if (hub) {
860 di->udi_hubaddr = hub->address;
861 di->udi_hubindex = hub->device_index;
862 di->udi_hubport = udev->port_no;
863 }
864 return (0);
865}
866
867/*------------------------------------------------------------------------*
868 * ugen_check_request
869 *
870 * Return values:
871 * 0: Access allowed
872 * Else: No access
873 *------------------------------------------------------------------------*/
874static int
875ugen_check_request(struct usb_device *udev, struct usb_device_request *req)
876{
877 struct usb_endpoint *ep;
878 int error;
879
880 /*
881 * Avoid requests that would damage the bus integrity:
882 */
883 if (((req->bmRequestType == UT_WRITE_DEVICE) &&
884 (req->bRequest == UR_SET_ADDRESS)) ||
885 ((req->bmRequestType == UT_WRITE_DEVICE) &&
886 (req->bRequest == UR_SET_CONFIG)) ||
887 ((req->bmRequestType == UT_WRITE_INTERFACE) &&
888 (req->bRequest == UR_SET_INTERFACE))) {
889 /*
890 * These requests can be useful for testing USB drivers.
891 */
892 error = priv_check(curthread, PRIV_DRIVER);
893 if (error) {
894 return (error);
895 }
896 }
897 /*
898 * Special case - handle clearing of stall
899 */
900 if (req->bmRequestType == UT_WRITE_ENDPOINT) {
901
902 ep = usbd_get_ep_by_addr(udev, req->wIndex[0]);
903 if (ep == NULL) {
904 return (EINVAL);
905 }
906 if ((req->bRequest == UR_CLEAR_FEATURE) &&
907 (UGETW(req->wValue) == UF_ENDPOINT_HALT)) {
908 usbd_clear_data_toggle(udev, ep);
909 }
910 }
911 /* TODO: add more checks to verify the interface index */
912
913 return (0);
914}
915
916int
917ugen_do_request(struct usb_fifo *f, struct usb_ctl_request *ur)
918{
919 int error;
920 uint16_t len;
921 uint16_t actlen;
922
923 if (ugen_check_request(f->udev, &ur->ucr_request)) {
924 return (EPERM);
925 }
926 len = UGETW(ur->ucr_request.wLength);
927
928 /* check if "ucr_data" is valid */
929 if (len != 0) {
930 if (ur->ucr_data == NULL) {
931 return (EFAULT);
932 }
933 }
934 /* do the USB request */
935 error = usbd_do_request_flags
936 (f->udev, NULL, &ur->ucr_request, ur->ucr_data,
937 (ur->ucr_flags & USB_SHORT_XFER_OK) |
938 USB_USER_DATA_PTR, &actlen,
939 USB_DEFAULT_TIMEOUT);
940
941 ur->ucr_actlen = actlen;
942
943 if (error) {
944 error = EIO;
945 }
946 return (error);
947}
948
949/*------------------------------------------------------------------------
950 * ugen_re_enumerate
951 *------------------------------------------------------------------------*/
952static int
953ugen_re_enumerate(struct usb_fifo *f)
954{
955 struct usb_device *udev = f->udev;
956 int error;
957
958 /*
959 * This request can be useful for testing USB drivers:
960 */
961 error = priv_check(curthread, PRIV_DRIVER);
962 if (error) {
963 return (error);
964 }
965 if (udev->flags.usb_mode != USB_MODE_HOST) {
966 /* not possible in device side mode */
967 DPRINTFN(6, "device mode\n");
968 return (ENOTTY);
969 }
970 if (udev->parent_hub == NULL) {
971 /* the root HUB cannot be re-enumerated */
972 DPRINTFN(6, "cannot reset root HUB\n");
973 return (EINVAL);
974 }
975 /* make sure all FIFO's are gone */
976 /* else there can be a deadlock */
977 if (ugen_fs_uninit(f)) {
978 /* ignore any errors */
979 DPRINTFN(6, "no FIFOs\n");
980 }
981 /* start re-enumeration of device */
982 usbd_start_re_enumerate(udev);
983 return (0);
984}
985
986int
987ugen_fs_uninit(struct usb_fifo *f)
988{
989 if (f->fs_xfer == NULL) {
990 return (EINVAL);
991 }
992 usbd_transfer_unsetup(f->fs_xfer, f->fs_ep_max);
993 free(f->fs_xfer, M_USB);
994 f->fs_xfer = NULL;
995 f->fs_ep_max = 0;
996 f->fs_ep_ptr = NULL;
997 f->flag_iscomplete = 0;
998 usb_fifo_free_buffer(f);
999 return (0);
1000}
1001
1002static uint8_t
1003ugen_fs_get_complete(struct usb_fifo *f, uint8_t *pindex)
1004{
1005 struct usb_mbuf *m;
1006
1007 USB_IF_DEQUEUE(&f->used_q, m);
1008
1009 if (m) {
1010 *pindex = *((uint8_t *)(m->cur_data_ptr));
1011
1012 USB_IF_ENQUEUE(&f->free_q, m);
1013
1014 return (0); /* success */
1015 } else {
1016
1017 *pindex = 0; /* fix compiler warning */
1018
1019 f->flag_iscomplete = 0;
1020 }
1021 return (1); /* failure */
1022}
1023
1024static void
1025ugen_fs_set_complete(struct usb_fifo *f, uint8_t index)
1026{
1027 struct usb_mbuf *m;
1028
1029 USB_IF_DEQUEUE(&f->free_q, m);
1030
1031 if (m == NULL) {
1032 /* can happen during close */
1033 DPRINTF("out of buffers\n");
1034 return;
1035 }
1036 USB_MBUF_RESET(m);
1037
1038 *((uint8_t *)(m->cur_data_ptr)) = index;
1039
1040 USB_IF_ENQUEUE(&f->used_q, m);
1041
1042 f->flag_iscomplete = 1;
1043
1044 usb_fifo_wakeup(f);
1045}
1046
1047static int
1048ugen_fs_copy_in(struct usb_fifo *f, uint8_t ep_index)
1049{
1050 struct usb_device_request *req;
1051 struct usb_xfer *xfer;
1052 struct usb_fs_endpoint fs_ep;
1053 void *uaddr; /* userland pointer */
1054 void *kaddr;
1055 usb_frlength_t offset;
1056 usb_frlength_t rem;
1057 usb_frcount_t n;
1058 uint32_t length;
1059 int error;
1060 uint8_t isread;
1061
1062 if (ep_index >= f->fs_ep_max) {
1063 return (EINVAL);
1064 }
1065 xfer = f->fs_xfer[ep_index];
1066 if (xfer == NULL) {
1067 return (EINVAL);
1068 }
1069 mtx_lock(f->priv_mtx);
1070 if (usbd_transfer_pending(xfer)) {
1071 mtx_unlock(f->priv_mtx);
1072 return (EBUSY); /* should not happen */
1073 }
1074 mtx_unlock(f->priv_mtx);
1075
1076 error = copyin(f->fs_ep_ptr +
1077 ep_index, &fs_ep, sizeof(fs_ep));
1078 if (error) {
1079 return (error);
1080 }
1081 /* security checks */
1082
1083 if (fs_ep.nFrames > xfer->max_frame_count) {
1084 xfer->error = USB_ERR_INVAL;
1085 goto complete;
1086 }
1087 if (fs_ep.nFrames == 0) {
1088 xfer->error = USB_ERR_INVAL;
1089 goto complete;
1090 }
1091 error = copyin(fs_ep.ppBuffer,
1092 &uaddr, sizeof(uaddr));
1093 if (error) {
1094 return (error);
1095 }
1096 /* reset first frame */
1097 usbd_xfer_set_frame_offset(xfer, 0, 0);
1098
1099 if (xfer->flags_int.control_xfr) {
1100
1101 req = xfer->frbuffers[0].buffer;
1102
1103 error = copyin(fs_ep.pLength,
1104 &length, sizeof(length));
1105 if (error) {
1106 return (error);
1107 }
1108 if (length != sizeof(*req)) {
1109 xfer->error = USB_ERR_INVAL;
1110 goto complete;
1111 }
1112 if (length != 0) {
1113 error = copyin(uaddr, req, length);
1114 if (error) {
1115 return (error);
1116 }
1117 }
1118 if (ugen_check_request(f->udev, req)) {
1119 xfer->error = USB_ERR_INVAL;
1120 goto complete;
1121 }
1122 usbd_xfer_set_frame_len(xfer, 0, length);
1123
1124 /* Host mode only ! */
1125 if ((req->bmRequestType &
1126 (UT_READ | UT_WRITE)) == UT_READ) {
1127 isread = 1;
1128 } else {
1129 isread = 0;
1130 }
1131 n = 1;
1132 offset = sizeof(*req);
1133
1134 } else {
1135 /* Device and Host mode */
1136 if (USB_GET_DATA_ISREAD(xfer)) {
1137 isread = 1;
1138 } else {
1139 isread = 0;
1140 }
1141 n = 0;
1142 offset = 0;
1143 }
1144
1145 rem = usbd_xfer_max_len(xfer);
1146 xfer->nframes = fs_ep.nFrames;
1147 xfer->timeout = fs_ep.timeout;
1148 if (xfer->timeout > 65535) {
1149 xfer->timeout = 65535;
1150 }
1151 if (fs_ep.flags & USB_FS_FLAG_SINGLE_SHORT_OK)
1152 xfer->flags.short_xfer_ok = 1;
1153 else
1154 xfer->flags.short_xfer_ok = 0;
1155
1156 if (fs_ep.flags & USB_FS_FLAG_MULTI_SHORT_OK)
1157 xfer->flags.short_frames_ok = 1;
1158 else
1159 xfer->flags.short_frames_ok = 0;
1160
1161 if (fs_ep.flags & USB_FS_FLAG_FORCE_SHORT)
1162 xfer->flags.force_short_xfer = 1;
1163 else
1164 xfer->flags.force_short_xfer = 0;
1165
1166 if (fs_ep.flags & USB_FS_FLAG_CLEAR_STALL)
1167 usbd_xfer_set_stall(xfer);
1168 else
1169 xfer->flags.stall_pipe = 0;
1170
1171 for (; n != xfer->nframes; n++) {
1172
1173 error = copyin(fs_ep.pLength + n,
1174 &length, sizeof(length));
1175 if (error) {
1176 break;
1177 }
1178 usbd_xfer_set_frame_len(xfer, n, length);
1179
1180 if (length > rem) {
1181 xfer->error = USB_ERR_INVAL;
1182 goto complete;
1183 }
1184 rem -= length;
1185
1186 if (!isread) {
1187
1188 /* we need to know the source buffer */
1189 error = copyin(fs_ep.ppBuffer + n,
1190 &uaddr, sizeof(uaddr));
1191 if (error) {
1192 break;
1193 }
1194 if (xfer->flags_int.isochronous_xfr) {
1195 /* get kernel buffer address */
1196 kaddr = xfer->frbuffers[0].buffer;
1197 kaddr = USB_ADD_BYTES(kaddr, offset);
1198 } else {
1199 /* set current frame offset */
1200 usbd_xfer_set_frame_offset(xfer, offset, n);
1201
1202 /* get kernel buffer address */
1203 kaddr = xfer->frbuffers[n].buffer;
1204 }
1205
1206 /* move data */
1207 error = copyin(uaddr, kaddr, length);
1208 if (error) {
1209 break;
1210 }
1211 }
1212 offset += length;
1213 }
1214 return (error);
1215
1216complete:
1217 mtx_lock(f->priv_mtx);
1218 ugen_fs_set_complete(f, ep_index);
1219 mtx_unlock(f->priv_mtx);
1220 return (0);
1221}
1222
1223static int
1224ugen_fs_copy_out(struct usb_fifo *f, uint8_t ep_index)
1225{
1226 struct usb_device_request *req;
1227 struct usb_xfer *xfer;
1228 struct usb_fs_endpoint fs_ep;
1229 struct usb_fs_endpoint *fs_ep_uptr; /* userland ptr */
1230 void *uaddr; /* userland ptr */
1231 void *kaddr;
1232 usb_frlength_t offset;
1233 usb_frlength_t rem;
1234 usb_frcount_t n;
1235 uint32_t length;
1236 uint32_t temp;
1237 int error;
1238 uint8_t isread;
1239
1240 if (ep_index >= f->fs_ep_max)
1241 return (EINVAL);
1242
1243 xfer = f->fs_xfer[ep_index];
1244 if (xfer == NULL)
1245 return (EINVAL);
1246
1247 mtx_lock(f->priv_mtx);
1248 if (usbd_transfer_pending(xfer)) {
1249 mtx_unlock(f->priv_mtx);
1250 return (EBUSY); /* should not happen */
1251 }
1252 mtx_unlock(f->priv_mtx);
1253
1254 fs_ep_uptr = f->fs_ep_ptr + ep_index;
1255 error = copyin(fs_ep_uptr, &fs_ep, sizeof(fs_ep));
1256 if (error) {
1257 return (error);
1258 }
1259 fs_ep.status = xfer->error;
1260 fs_ep.aFrames = xfer->aframes;
1261 fs_ep.isoc_time_complete = xfer->isoc_time_complete;
1262 if (xfer->error) {
1263 goto complete;
1264 }
1265 if (xfer->flags_int.control_xfr) {
1266 req = xfer->frbuffers[0].buffer;
1267
1268 /* Host mode only ! */
1269 if ((req->bmRequestType & (UT_READ | UT_WRITE)) == UT_READ) {
1270 isread = 1;
1271 } else {
1272 isread = 0;
1273 }
1274 if (xfer->nframes == 0)
1275 n = 0; /* should never happen */
1276 else
1277 n = 1;
1278 } else {
1279 /* Device and Host mode */
1280 if (USB_GET_DATA_ISREAD(xfer)) {
1281 isread = 1;
1282 } else {
1283 isread = 0;
1284 }
1285 n = 0;
1286 }
1287
1288 /* Update lengths and copy out data */
1289
1290 rem = usbd_xfer_max_len(xfer);
1291 offset = 0;
1292
1293 for (; n != xfer->nframes; n++) {
1294
1295 /* get initial length into "temp" */
1296 error = copyin(fs_ep.pLength + n,
1297 &temp, sizeof(temp));
1298 if (error) {
1299 return (error);
1300 }
1301 if (temp > rem) {
1302 /* the userland length has been corrupted */
1303 DPRINTF("corrupt userland length "
1304 "%u > %u\n", temp, rem);
1305 fs_ep.status = USB_ERR_INVAL;
1306 goto complete;
1307 }
1308 rem -= temp;
1309
1310 /* get actual transfer length */
1311 length = xfer->frlengths[n];
1312 if (length > temp) {
1313 /* data overflow */
1314 fs_ep.status = USB_ERR_INVAL;
1315 DPRINTF("data overflow %u > %u\n",
1316 length, temp);
1317 goto complete;
1318 }
1319 if (isread) {
1320
1321 /* we need to know the destination buffer */
1322 error = copyin(fs_ep.ppBuffer + n,
1323 &uaddr, sizeof(uaddr));
1324 if (error) {
1325 return (error);
1326 }
1327 if (xfer->flags_int.isochronous_xfr) {
1328 /* only one frame buffer */
1329 kaddr = USB_ADD_BYTES(
1330 xfer->frbuffers[0].buffer, offset);
1331 } else {
1332 /* multiple frame buffers */
1333 kaddr = xfer->frbuffers[n].buffer;
1334 }
1335
1336 /* move data */
1337 error = copyout(kaddr, uaddr, length);
1338 if (error) {
1339 return (error);
1340 }
1341 }
1342 /*
1343 * Update offset according to initial length, which is
1344 * needed by isochronous transfers!
1345 */
1346 offset += temp;
1347
1348 /* update length */
1349 error = copyout(&length,
1350 fs_ep.pLength + n, sizeof(length));
1351 if (error) {
1352 return (error);
1353 }
1354 }
1355
1356complete:
1357 /* update "aFrames" */
1358 error = copyout(&fs_ep.aFrames, &fs_ep_uptr->aFrames,
1359 sizeof(fs_ep.aFrames));
1360 if (error)
1361 goto done;
1362
1363 /* update "isoc_time_complete" */
1364 error = copyout(&fs_ep.isoc_time_complete,
1365 &fs_ep_uptr->isoc_time_complete,
1366 sizeof(fs_ep.isoc_time_complete));
1367 if (error)
1368 goto done;
1369 /* update "status" */
1370 error = copyout(&fs_ep.status, &fs_ep_uptr->status,
1371 sizeof(fs_ep.status));
1372done:
1373 return (error);
1374}
1375
1376static uint8_t
1377ugen_fifo_in_use(struct usb_fifo *f, int fflags)
1378{
1379 struct usb_fifo *f_rx;
1380 struct usb_fifo *f_tx;
1381
1382 f_rx = f->udev->fifo[(f->fifo_index & ~1) + USB_FIFO_RX];
1383 f_tx = f->udev->fifo[(f->fifo_index & ~1) + USB_FIFO_TX];
1384
1385 if ((fflags & FREAD) && f_rx &&
1386 (f_rx->xfer[0] || f_rx->xfer[1])) {
1387 return (1); /* RX FIFO in use */
1388 }
1389 if ((fflags & FWRITE) && f_tx &&
1390 (f_tx->xfer[0] || f_tx->xfer[1])) {
1391 return (1); /* TX FIFO in use */
1392 }
1393 return (0); /* not in use */
1394}
1395
1396static int
1397ugen_ioctl(struct usb_fifo *f, u_long cmd, void *addr, int fflags)
1398{
1399 struct usb_config usb_config[1];
1400 struct usb_device_request req;
1401 union {
1402 struct usb_fs_complete *pcomp;
1403 struct usb_fs_start *pstart;
1404 struct usb_fs_stop *pstop;
1405 struct usb_fs_open *popen;
1406 struct usb_fs_open_stream *popen_stream;
1407 struct usb_fs_close *pclose;
1408 struct usb_fs_clear_stall_sync *pstall;
1409 void *addr;
1410 } u;
1411 struct usb_endpoint *ep;
1412 struct usb_endpoint_descriptor *ed;
1413 struct usb_xfer *xfer;
1414 int error = 0;
1415 uint8_t iface_index;
1416 uint8_t isread;
1417 uint8_t ep_index;
1418 uint8_t pre_scale;
1419
1420 u.addr = addr;
1421
1422 DPRINTFN(6, "cmd=0x%08lx\n", cmd);
1423
1424 switch (cmd) {
1425 case USB_FS_COMPLETE:
1426 mtx_lock(f->priv_mtx);
1427 error = ugen_fs_get_complete(f, &ep_index);
1428 mtx_unlock(f->priv_mtx);
1429
1430 if (error) {
1431 error = EBUSY;
1432 break;
1433 }
1434 u.pcomp->ep_index = ep_index;
1435 error = ugen_fs_copy_out(f, u.pcomp->ep_index);
1436 break;
1437
1438 case USB_FS_START:
1439 error = ugen_fs_copy_in(f, u.pstart->ep_index);
1440 if (error)
1441 break;
1442 mtx_lock(f->priv_mtx);
1443 xfer = f->fs_xfer[u.pstart->ep_index];
1444 usbd_transfer_start(xfer);
1445 mtx_unlock(f->priv_mtx);
1446 break;
1447
1448 case USB_FS_STOP:
1449 if (u.pstop->ep_index >= f->fs_ep_max) {
1450 error = EINVAL;
1451 break;
1452 }
1453 mtx_lock(f->priv_mtx);
1454 xfer = f->fs_xfer[u.pstart->ep_index];
1455 if (usbd_transfer_pending(xfer)) {
1456 usbd_transfer_stop(xfer);
1457 /*
1458 * Check if the USB transfer was stopped
1459 * before it was even started. Else a cancel
1460 * callback will be pending.
1461 */
1462 if (!xfer->flags_int.transferring) {
1463 ugen_fs_set_complete(xfer->priv_sc,
1464 USB_P2U(xfer->priv_fifo));
1465 }
1466 }
1467 mtx_unlock(f->priv_mtx);
1468 break;
1469
1470 case USB_FS_OPEN:
1471 case USB_FS_OPEN_STREAM:
1472 if (u.popen->ep_index >= f->fs_ep_max) {
1473 error = EINVAL;
1474 break;
1475 }
1476 if (f->fs_xfer[u.popen->ep_index] != NULL) {
1477 error = EBUSY;
1478 break;
1479 }
1480 if (u.popen->max_bufsize > USB_FS_MAX_BUFSIZE) {
1481 u.popen->max_bufsize = USB_FS_MAX_BUFSIZE;
1482 }
1483 if (u.popen->max_frames & USB_FS_MAX_FRAMES_PRE_SCALE) {
1484 pre_scale = 1;
1485 u.popen->max_frames &= ~USB_FS_MAX_FRAMES_PRE_SCALE;
1486 } else {
1487 pre_scale = 0;
1488 }
1489 if (u.popen->max_frames > USB_FS_MAX_FRAMES) {
1490 u.popen->max_frames = USB_FS_MAX_FRAMES;
1491 break;
1492 }
1493 if (u.popen->max_frames == 0) {
1494 error = EINVAL;
1495 break;
1496 }
1497 ep = usbd_get_ep_by_addr(f->udev, u.popen->ep_no);
1498 if (ep == NULL) {
1499 error = EINVAL;
1500 break;
1501 }
1502 ed = ep->edesc;
1503 if (ed == NULL) {
1504 error = ENXIO;
1505 break;
1506 }
1507 iface_index = ep->iface_index;
1508
1509 memset(usb_config, 0, sizeof(usb_config));
1510
1511 usb_config[0].type = ed->bmAttributes & UE_XFERTYPE;
1512 usb_config[0].endpoint = ed->bEndpointAddress & UE_ADDR;
1513 usb_config[0].direction = ed->bEndpointAddress & (UE_DIR_OUT | UE_DIR_IN);
1514 usb_config[0].interval = USB_DEFAULT_INTERVAL;
1515 usb_config[0].flags.proxy_buffer = 1;
1516 if (pre_scale != 0)
1517 usb_config[0].flags.pre_scale_frames = 1;
1518 usb_config[0].callback = &ugen_ctrl_fs_callback;
1519 usb_config[0].timeout = 0; /* no timeout */
1520 usb_config[0].frames = u.popen->max_frames;
1521 usb_config[0].bufsize = u.popen->max_bufsize;
1522 usb_config[0].usb_mode = USB_MODE_DUAL; /* both modes */
1523 if (cmd == USB_FS_OPEN_STREAM)
1524 usb_config[0].stream_id = u.popen_stream->stream_id;
1525
1526 if (usb_config[0].type == UE_CONTROL) {
1527 if (f->udev->flags.usb_mode != USB_MODE_HOST) {
1528 error = EINVAL;
1529 break;
1530 }
1531 } else {
1532
1533 isread = ((usb_config[0].endpoint &
1534 (UE_DIR_IN | UE_DIR_OUT)) == UE_DIR_IN);
1535
1536 if (f->udev->flags.usb_mode != USB_MODE_HOST) {
1537 isread = !isread;
1538 }
1539 /* check permissions */
1540 if (isread) {
1541 if (!(fflags & FREAD)) {
1542 error = EPERM;
1543 break;
1544 }
1545 } else {
1546 if (!(fflags & FWRITE)) {
1547 error = EPERM;
1548 break;
1549 }
1550 }
1551 }
1552 error = usbd_transfer_setup(f->udev, &iface_index,
1553 f->fs_xfer + u.popen->ep_index, usb_config, 1,
1554 f, f->priv_mtx);
1555 if (error == 0) {
1556 /* update maximums */
1557 u.popen->max_packet_length =
1558 f->fs_xfer[u.popen->ep_index]->max_frame_size;
1559 u.popen->max_bufsize =
1560 f->fs_xfer[u.popen->ep_index]->max_data_length;
1561 /* update number of frames */
1562 u.popen->max_frames =
1563 f->fs_xfer[u.popen->ep_index]->nframes;
1564 /* store index of endpoint */
1565 f->fs_xfer[u.popen->ep_index]->priv_fifo =
1566 ((uint8_t *)0) + u.popen->ep_index;
1567 } else {
1568 error = ENOMEM;
1569 }
1570 break;
1571
1572 case USB_FS_CLOSE:
1573 if (u.pclose->ep_index >= f->fs_ep_max) {
1574 error = EINVAL;
1575 break;
1576 }
1577 if (f->fs_xfer[u.pclose->ep_index] == NULL) {
1578 error = EINVAL;
1579 break;
1580 }
1581 usbd_transfer_unsetup(f->fs_xfer + u.pclose->ep_index, 1);
1582 break;
1583
1584 case USB_FS_CLEAR_STALL_SYNC:
1585 if (u.pstall->ep_index >= f->fs_ep_max) {
1586 error = EINVAL;
1587 break;
1588 }
1589 if (f->fs_xfer[u.pstall->ep_index] == NULL) {
1590 error = EINVAL;
1591 break;
1592 }
1593 if (f->udev->flags.usb_mode != USB_MODE_HOST) {
1594 error = EINVAL;
1595 break;
1596 }
1597 mtx_lock(f->priv_mtx);
1598 error = usbd_transfer_pending(f->fs_xfer[u.pstall->ep_index]);
1599 mtx_unlock(f->priv_mtx);
1600
1601 if (error) {
1602 return (EBUSY);
1603 }
1604 ep = f->fs_xfer[u.pstall->ep_index]->endpoint;
1605
1606 /* setup a clear-stall packet */
1607 req.bmRequestType = UT_WRITE_ENDPOINT;
1608 req.bRequest = UR_CLEAR_FEATURE;
1609 USETW(req.wValue, UF_ENDPOINT_HALT);
1610 req.wIndex[0] = ep->edesc->bEndpointAddress;
1611 req.wIndex[1] = 0;
1612 USETW(req.wLength, 0);
1613
1614 error = usbd_do_request(f->udev, NULL, &req, NULL);
1615 if (error == 0) {
1616 usbd_clear_data_toggle(f->udev, ep);
1617 } else {
1618 error = ENXIO;
1619 }
1620 break;
1621
1622 default:
1623 error = ENOIOCTL;
1624 break;
1625 }
1626
1627 DPRINTFN(6, "error=%d\n", error);
1628
1629 return (error);
1630}
1631
1632static int
1633ugen_set_short_xfer(struct usb_fifo *f, void *addr)
1634{
1635 uint8_t t;
1636
1637 if (*(int *)addr)
1638 t = 1;
1639 else
1640 t = 0;
1641
1642 if (f->flag_short == t) {
1643 /* same value like before - accept */
1644 return (0);
1645 }
1646 if (f->xfer[0] || f->xfer[1]) {
1647 /* cannot change this during transfer */
1648 return (EBUSY);
1649 }
1650 f->flag_short = t;
1651 return (0);
1652}
1653
1654static int
1655ugen_set_timeout(struct usb_fifo *f, void *addr)
1656{
1657 f->timeout = *(int *)addr;
1658 if (f->timeout > 65535) {
1659 /* limit user input */
1660 f->timeout = 65535;
1661 }
1662 return (0);
1663}
1664
1665static int
1666ugen_get_frame_size(struct usb_fifo *f, void *addr)
1667{
1668 if (f->xfer[0]) {
1669 *(int *)addr = f->xfer[0]->max_frame_size;
1670 } else {
1671 return (EINVAL);
1672 }
1673 return (0);
1674}
1675
1676static int
1677ugen_set_buffer_size(struct usb_fifo *f, void *addr)
1678{
1679 usb_frlength_t t;
1680
1681 if (*(int *)addr < 0)
1682 t = 0; /* use "wMaxPacketSize" */
1683 else if (*(int *)addr < (256 * 1024))
1684 t = *(int *)addr;
1685 else
1686 t = 256 * 1024;
1687
1688 if (f->bufsize == t) {
1689 /* same value like before - accept */
1690 return (0);
1691 }
1692 if (f->xfer[0] || f->xfer[1]) {
1693 /* cannot change this during transfer */
1694 return (EBUSY);
1695 }
1696 f->bufsize = t;
1697 return (0);
1698}
1699
1700static int
1701ugen_get_buffer_size(struct usb_fifo *f, void *addr)
1702{
1703 *(int *)addr = f->bufsize;
1704 return (0);
1705}
1706
1707static int
1708ugen_get_iface_desc(struct usb_fifo *f,
1709 struct usb_interface_descriptor *idesc)
1710{
1711 struct usb_interface *iface;
1712
1713 iface = usbd_get_iface(f->udev, f->iface_index);
1714 if (iface && iface->idesc) {
1715 *idesc = *(iface->idesc);
1716 } else {
1717 return (EIO);
1718 }
1719 return (0);
1720}
1721
1722static int
1723ugen_get_endpoint_desc(struct usb_fifo *f,
1724 struct usb_endpoint_descriptor *ed)
1725{
1726 struct usb_endpoint *ep;
1727
1728 ep = usb_fifo_softc(f);
1729
1730 if (ep && ep->edesc) {
1731 *ed = *ep->edesc;
1732 } else {
1733 return (EINVAL);
1734 }
1735 return (0);
1736}
1737
1738static int
1739ugen_set_power_mode(struct usb_fifo *f, int mode)
1740{
1741 struct usb_device *udev = f->udev;
1742 int err;
1743 uint8_t old_mode;
1744
1745 if ((udev == NULL) ||
1746 (udev->parent_hub == NULL)) {
1747 return (EINVAL);
1748 }
1749 err = priv_check(curthread, PRIV_DRIVER);
1750 if (err)
1751 return (err);
1752
1753 /* get old power mode */
1754 old_mode = udev->power_mode;
1755
1756 /* if no change, then just return */
1757 if (old_mode == mode)
1758 return (0);
1759
1760 switch (mode) {
1761 case USB_POWER_MODE_OFF:
1762 /* get the device unconfigured */
1763 err = ugen_set_config(f, USB_UNCONFIG_INDEX);
1764 if (err) {
1765 DPRINTFN(0, "Could not unconfigure "
1766 "device (ignored)\n");
1767 }
1768
1769 /* clear port enable */
1770 err = usbd_req_clear_port_feature(udev->parent_hub,
1771 NULL, udev->port_no, UHF_PORT_ENABLE);
1772 break;
1773
1774 case USB_POWER_MODE_ON:
1775 case USB_POWER_MODE_SAVE:
1776 break;
1777
1778 case USB_POWER_MODE_RESUME:
1779#if USB_HAVE_POWERD
1780 /* let USB-powerd handle resume */
1781 USB_BUS_LOCK(udev->bus);
1782 udev->pwr_save.write_refs++;
1783 udev->pwr_save.last_xfer_time = ticks;
1784 USB_BUS_UNLOCK(udev->bus);
1785
1786 /* set new power mode */
1787 usbd_set_power_mode(udev, USB_POWER_MODE_SAVE);
1788
1789 /* wait for resume to complete */
1790 usb_pause_mtx(NULL, hz / 4);
1791
1792 /* clear write reference */
1793 USB_BUS_LOCK(udev->bus);
1794 udev->pwr_save.write_refs--;
1795 USB_BUS_UNLOCK(udev->bus);
1796#endif
1797 mode = USB_POWER_MODE_SAVE;
1798 break;
1799
1800 case USB_POWER_MODE_SUSPEND:
1801#if USB_HAVE_POWERD
1802 /* let USB-powerd handle suspend */
1803 USB_BUS_LOCK(udev->bus);
1804 udev->pwr_save.last_xfer_time = ticks - (256 * hz);
1805 USB_BUS_UNLOCK(udev->bus);
1806#endif
1807 mode = USB_POWER_MODE_SAVE;
1808 break;
1809
1810 default:
1811 return (EINVAL);
1812 }
1813
1814 if (err)
1815 return (ENXIO); /* I/O failure */
1816
1817 /* if we are powered off we need to re-enumerate first */
1818 if (old_mode == USB_POWER_MODE_OFF) {
1819 if (udev->flags.usb_mode == USB_MODE_HOST) {
1820 if (udev->re_enumerate_wait == 0)
1821 udev->re_enumerate_wait = 1;
1822 }
1823 /* set power mode will wake up the explore thread */
1824 }
1825
1826 /* set new power mode */
1827 usbd_set_power_mode(udev, mode);
1828
1829 return (0); /* success */
1830}
1831
1832static int
1833ugen_get_power_mode(struct usb_fifo *f)
1834{
1835 struct usb_device *udev = f->udev;
1836
1837 if (udev == NULL)
1838 return (USB_POWER_MODE_ON);
1839
1840 return (udev->power_mode);
1841}
1842
1843static int
1844ugen_get_port_path(struct usb_fifo *f, struct usb_device_port_path *dpp)
1845{
1846 struct usb_device *udev = f->udev;
1847 struct usb_device *next;
1848 unsigned int nlevel = 0;
1849
1850 if (udev == NULL)
1851 goto error;
1852
1853 dpp->udp_bus = device_get_unit(udev->bus->bdev);
1854 dpp->udp_index = udev->device_index;
1855
1856 /* count port levels */
1857 next = udev;
1858 while (next->parent_hub != NULL) {
1859 nlevel++;
1860 next = next->parent_hub;
1861 }
1862
1863 /* check if too many levels */
1864 if (nlevel > USB_DEVICE_PORT_PATH_MAX)
1865 goto error;
1866
1867 /* store port index array */
1868 next = udev;
1869 while (next->parent_hub != NULL) {
1870 nlevel--;
1871
1872 dpp->udp_port_no[nlevel] = next->port_no;
1873 dpp->udp_port_level = nlevel;
1874
1875 next = next->parent_hub;
1876 }
1877 return (0); /* success */
1878
1879error:
1880 return (EINVAL); /* failure */
1881}
1882
1883static int
1884ugen_get_power_usage(struct usb_fifo *f)
1885{
1886 struct usb_device *udev = f->udev;
1887
1888 if (udev == NULL)
1889 return (0);
1890
1891 return (udev->power);
1892}
1893
1894static int
1895ugen_do_port_feature(struct usb_fifo *f, uint8_t port_no,
1896 uint8_t set, uint16_t feature)
1897{
1898 struct usb_device *udev = f->udev;
1899 struct usb_hub *hub;
1900 int err;
1901
1902 err = priv_check(curthread, PRIV_DRIVER);
1903 if (err) {
1904 return (err);
1905 }
1906 if (port_no == 0) {
1907 return (EINVAL);
1908 }
1909 if ((udev == NULL) ||
1910 (udev->hub == NULL)) {
1911 return (EINVAL);
1912 }
1913 hub = udev->hub;
1914
1915 if (port_no > hub->nports) {
1916 return (EINVAL);
1917 }
1918 if (set)
1919 err = usbd_req_set_port_feature(udev,
1920 NULL, port_no, feature);
1921 else
1922 err = usbd_req_clear_port_feature(udev,
1923 NULL, port_no, feature);
1924
1925 if (err)
1926 return (ENXIO); /* failure */
1927
1928 return (0); /* success */
1929}
1930
1931static int
1932ugen_iface_ioctl(struct usb_fifo *f, u_long cmd, void *addr, int fflags)
1933{
1934 struct usb_fifo *f_rx;
1935 struct usb_fifo *f_tx;
1936 int error = 0;
1937
1938 f_rx = f->udev->fifo[(f->fifo_index & ~1) + USB_FIFO_RX];
1939 f_tx = f->udev->fifo[(f->fifo_index & ~1) + USB_FIFO_TX];
1940
1941 switch (cmd) {
1942 case USB_SET_RX_SHORT_XFER:
1943 if (fflags & FREAD) {
1944 error = ugen_set_short_xfer(f_rx, addr);
1945 } else {
1946 error = EINVAL;
1947 }
1948 break;
1949
1950 case USB_SET_TX_FORCE_SHORT:
1951 if (fflags & FWRITE) {
1952 error = ugen_set_short_xfer(f_tx, addr);
1953 } else {
1954 error = EINVAL;
1955 }
1956 break;
1957
1958 case USB_SET_RX_TIMEOUT:
1959 if (fflags & FREAD) {
1960 error = ugen_set_timeout(f_rx, addr);
1961 } else {
1962 error = EINVAL;
1963 }
1964 break;
1965
1966 case USB_SET_TX_TIMEOUT:
1967 if (fflags & FWRITE) {
1968 error = ugen_set_timeout(f_tx, addr);
1969 } else {
1970 error = EINVAL;
1971 }
1972 break;
1973
1974 case USB_GET_RX_FRAME_SIZE:
1975 if (fflags & FREAD) {
1976 error = ugen_get_frame_size(f_rx, addr);
1977 } else {
1978 error = EINVAL;
1979 }
1980 break;
1981
1982 case USB_GET_TX_FRAME_SIZE:
1983 if (fflags & FWRITE) {
1984 error = ugen_get_frame_size(f_tx, addr);
1985 } else {
1986 error = EINVAL;
1987 }
1988 break;
1989
1990 case USB_SET_RX_BUFFER_SIZE:
1991 if (fflags & FREAD) {
1992 error = ugen_set_buffer_size(f_rx, addr);
1993 } else {
1994 error = EINVAL;
1995 }
1996 break;
1997
1998 case USB_SET_TX_BUFFER_SIZE:
1999 if (fflags & FWRITE) {
2000 error = ugen_set_buffer_size(f_tx, addr);
2001 } else {
2002 error = EINVAL;
2003 }
2004 break;
2005
2006 case USB_GET_RX_BUFFER_SIZE:
2007 if (fflags & FREAD) {
2008 error = ugen_get_buffer_size(f_rx, addr);
2009 } else {
2010 error = EINVAL;
2011 }
2012 break;
2013
2014 case USB_GET_TX_BUFFER_SIZE:
2015 if (fflags & FWRITE) {
2016 error = ugen_get_buffer_size(f_tx, addr);
2017 } else {
2018 error = EINVAL;
2019 }
2020 break;
2021
2022 case USB_GET_RX_INTERFACE_DESC:
2023 if (fflags & FREAD) {
2024 error = ugen_get_iface_desc(f_rx, addr);
2025 } else {
2026 error = EINVAL;
2027 }
2028 break;
2029
2030 case USB_GET_TX_INTERFACE_DESC:
2031 if (fflags & FWRITE) {
2032 error = ugen_get_iface_desc(f_tx, addr);
2033 } else {
2034 error = EINVAL;
2035 }
2036 break;
2037
2038 case USB_GET_RX_ENDPOINT_DESC:
2039 if (fflags & FREAD) {
2040 error = ugen_get_endpoint_desc(f_rx, addr);
2041 } else {
2042 error = EINVAL;
2043 }
2044 break;
2045
2046 case USB_GET_TX_ENDPOINT_DESC:
2047 if (fflags & FWRITE) {
2048 error = ugen_get_endpoint_desc(f_tx, addr);
2049 } else {
2050 error = EINVAL;
2051 }
2052 break;
2053
2054 case USB_SET_RX_STALL_FLAG:
2055 if ((fflags & FREAD) && (*(int *)addr)) {
2056 f_rx->flag_stall = 1;
2057 }
2058 break;
2059
2060 case USB_SET_TX_STALL_FLAG:
2061 if ((fflags & FWRITE) && (*(int *)addr)) {
2062 f_tx->flag_stall = 1;
2063 }
2064 break;
2065
2066 default:
2067 error = ENOIOCTL;
2068 break;
2069 }
2070 return (error);
2071}
2072
2073static int
2074ugen_ioctl_post(struct usb_fifo *f, u_long cmd, void *addr, int fflags)
2075{
2076 union {
2077 struct usb_interface_descriptor *idesc;
2078 struct usb_alt_interface *ai;
2079 struct usb_device_descriptor *ddesc;
2080 struct usb_config_descriptor *cdesc;
2081 struct usb_device_stats *stat;
2082 struct usb_fs_init *pinit;
2083 struct usb_fs_uninit *puninit;
2084 struct usb_device_port_path *dpp;
2085 uint32_t *ptime;
2086 void *addr;
2087 int *pint;
2088 } u;
2089 struct usb_device_descriptor *dtemp;
2090 struct usb_config_descriptor *ctemp;
2091 struct usb_interface *iface;
2092 int error = 0;
2093 uint8_t n;
2094
2095 u.addr = addr;
2096
2097 DPRINTFN(6, "cmd=0x%08lx\n", cmd);
2098
2099 switch (cmd) {
2100 case USB_DISCOVER:
2101 usb_needs_explore_all();
2102 break;
2103
2104 case USB_SETDEBUG:
2105 if (!(fflags & FWRITE)) {
2106 error = EPERM;
2107 break;
2108 }
2109 usb_debug = *(int *)addr;
2110 break;
2111
2112 case USB_GET_CONFIG:
2113 *(int *)addr = f->udev->curr_config_index;
2114 break;
2115
2116 case USB_SET_CONFIG:
2117 if (!(fflags & FWRITE)) {
2118 error = EPERM;
2119 break;
2120 }
2121 error = ugen_set_config(f, *(int *)addr);
2122 break;
2123
2124 case USB_GET_ALTINTERFACE:
2125 iface = usbd_get_iface(f->udev,
2126 u.ai->uai_interface_index);
2127 if (iface && iface->idesc) {
2128 u.ai->uai_alt_index = iface->alt_index;
2129 } else {
2130 error = EINVAL;
2131 }
2132 break;
2133
2134 case USB_SET_ALTINTERFACE:
2135 if (!(fflags & FWRITE)) {
2136 error = EPERM;
2137 break;
2138 }
2139 error = ugen_set_interface(f,
2140 u.ai->uai_interface_index, u.ai->uai_alt_index);
2141 break;
2142
2143 case USB_GET_DEVICE_DESC:
2144 dtemp = usbd_get_device_descriptor(f->udev);
2145 if (!dtemp) {
2146 error = EIO;
2147 break;
2148 }
2149 *u.ddesc = *dtemp;
2150 break;
2151
2152 case USB_GET_CONFIG_DESC:
2153 ctemp = usbd_get_config_descriptor(f->udev);
2154 if (!ctemp) {
2155 error = EIO;
2156 break;
2157 }
2158 *u.cdesc = *ctemp;
2159 break;
2160
2161 case USB_GET_FULL_DESC:
2162 error = ugen_get_cdesc(f, addr);
2163 break;
2164
2165 case USB_GET_STRING_DESC:
2166 error = ugen_get_sdesc(f, addr);
2167 break;
2168
2169 case USB_GET_IFACE_DRIVER:
2170 error = ugen_get_iface_driver(f, addr);
2171 break;
2172
2173 case USB_REQUEST:
2174 case USB_DO_REQUEST:
2175 if (!(fflags & FWRITE)) {
2176 error = EPERM;
2177 break;
2178 }
2179 error = ugen_do_request(f, addr);
2180 break;
2181
2182 case USB_DEVICEINFO:
2183 case USB_GET_DEVICEINFO:
2184 error = usb_gen_fill_deviceinfo(f, addr);
2185 break;
2186
2187 case USB_DEVICESTATS:
2188 for (n = 0; n != 4; n++) {
2189
2190 u.stat->uds_requests_fail[n] =
2191 f->udev->bus->stats_err.uds_requests[n];
2192
2193 u.stat->uds_requests_ok[n] =
2194 f->udev->bus->stats_ok.uds_requests[n];
2195 }
2196 break;
2197
2198 case USB_DEVICEENUMERATE:
2199 error = ugen_re_enumerate(f);
2200 break;
2201
2202 case USB_GET_PLUGTIME:
2203 *u.ptime = f->udev->plugtime;
2204 break;
2205
2206 case USB_CLAIM_INTERFACE:
2207 case USB_RELEASE_INTERFACE:
2208 /* TODO */
2209 break;
2210
2211 case USB_IFACE_DRIVER_ACTIVE:
2212
2213 n = *u.pint & 0xFF;
2214
2215 iface = usbd_get_iface(f->udev, n);
2216
2217 if (iface && iface->subdev)
2218 error = 0;
2219 else
2220 error = ENXIO;
2221 break;
2222
2223 case USB_IFACE_DRIVER_DETACH:
2224
2225 error = priv_check(curthread, PRIV_DRIVER);
2226
2227 if (error)
2228 break;
2229
2230 n = *u.pint & 0xFF;
2231
2232 if (n == USB_IFACE_INDEX_ANY) {
2233 error = EINVAL;
2234 break;
2235 }
2236
2237 /*
2238 * Detach the currently attached driver.
2239 */
2240 usb_detach_device(f->udev, n, 0);
2241
2242 /*
2243 * Set parent to self, this should keep attach away
2244 * until the next set configuration event.
2245 */
2246 usbd_set_parent_iface(f->udev, n, n);
2247 break;
2248
2249 case USB_SET_POWER_MODE:
2250 error = ugen_set_power_mode(f, *u.pint);
2251 break;
2252
2253 case USB_GET_POWER_MODE:
2254 *u.pint = ugen_get_power_mode(f);
2255 break;
2256
2257 case USB_GET_DEV_PORT_PATH:
2258 error = ugen_get_port_path(f, u.dpp);
2259 break;
2260
2261 case USB_GET_POWER_USAGE:
2262 *u.pint = ugen_get_power_usage(f);
2263 break;
2264
2265 case USB_SET_PORT_ENABLE:
2266 error = ugen_do_port_feature(f,
2267 *u.pint, 1, UHF_PORT_ENABLE);
2268 break;
2269
2270 case USB_SET_PORT_DISABLE:
2271 error = ugen_do_port_feature(f,
2272 *u.pint, 0, UHF_PORT_ENABLE);
2273 break;
2274
2275 case USB_FS_INIT:
2276 /* verify input parameters */
2277 if (u.pinit->pEndpoints == NULL) {
2278 error = EINVAL;
2279 break;
2280 }
2281 if (u.pinit->ep_index_max > 127) {
2282 error = EINVAL;
2283 break;
2284 }
2285 if (u.pinit->ep_index_max == 0) {
2286 error = EINVAL;
2287 break;
2288 }
2289 if (f->fs_xfer != NULL) {
2290 error = EBUSY;
2291 break;
2292 }
2293 if (f->dev_ep_index != 0) {
2294 error = EINVAL;
2295 break;
2296 }
2297 if (ugen_fifo_in_use(f, fflags)) {
2298 error = EBUSY;
2299 break;
2300 }
2301 error = usb_fifo_alloc_buffer(f, 1, u.pinit->ep_index_max);
2302 if (error) {
2303 break;
2304 }
2305 f->fs_xfer = malloc(sizeof(f->fs_xfer[0]) *
2306 u.pinit->ep_index_max, M_USB, M_WAITOK | M_ZERO);
2307 if (f->fs_xfer == NULL) {
2308 usb_fifo_free_buffer(f);
2309 error = ENOMEM;
2310 break;
2311 }
2312 f->fs_ep_max = u.pinit->ep_index_max;
2313 f->fs_ep_ptr = u.pinit->pEndpoints;
2314 break;
2315
2316 case USB_FS_UNINIT:
2317 if (u.puninit->dummy != 0) {
2318 error = EINVAL;
2319 break;
2320 }
2321 error = ugen_fs_uninit(f);
2322 break;
2323
2324 default:
2325 mtx_lock(f->priv_mtx);
2326 error = ugen_iface_ioctl(f, cmd, addr, fflags);
2327 mtx_unlock(f->priv_mtx);
2328 break;
2329 }
2330 DPRINTFN(6, "error=%d\n", error);
2331 return (error);
2332}
2333
2334static void
2335ugen_ctrl_fs_callback(struct usb_xfer *xfer, usb_error_t error)
2336{
2337 ; /* workaround for a bug in "indent" */
2338
2339 DPRINTF("st=%u alen=%u aframes=%u\n",
2340 USB_GET_STATE(xfer), xfer->actlen, xfer->aframes);
2341
2342 switch (USB_GET_STATE(xfer)) {
2343 case USB_ST_SETUP:
2344 usbd_transfer_submit(xfer);
2345 break;
2346 default:
2347 ugen_fs_set_complete(xfer->priv_sc, USB_P2U(xfer->priv_fifo));
2348 break;
2349 }
2350}
2351#endif /* USB_HAVE_UGEN */