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