2 * $NetBSD: ugen.c,v 1.27 1999/10/28 12:08:38 augustss Exp $
3 * $NetBSD: ugen.c,v 1.59 2002/07/11 21:14:28 augustss Exp $
4 * $FreeBSD: src/sys/dev/usb/ugen.c,v 1.81 2003/11/09 09:17:22 tanimura Exp $
8 * Also already merged from NetBSD:
9 * $NetBSD: ugen.c,v 1.61 2002/09/23 05:51:20 simonb Exp $
10 * $NetBSD: ugen.c,v 1.64 2003/06/28 14:21:46 darrenr Exp $
11 * $NetBSD: ugen.c,v 1.65 2003/06/29 22:30:56 fvdl Exp $
15 * Copyright (c) 1998 The NetBSD Foundation, Inc.
16 * All rights reserved.
18 * This code is derived from software contributed to The NetBSD Foundation
19 * by Lennart Augustsson (lennart@augustsson.net) at
20 * Carlstedt Research & Technology.
22 * Redistribution and use in source and binary forms, with or without
23 * modification, are permitted provided that the following conditions
25 * 1. Redistributions of source code must retain the above copyright
26 * notice, this list of conditions and the following disclaimer.
27 * 2. Redistributions in binary form must reproduce the above copyright
28 * notice, this list of conditions and the following disclaimer in the
29 * documentation and/or other materials provided with the distribution.
30 * 3. All advertising materials mentioning features or use of this software
31 * must display the following acknowledgement:
32 * This product includes software developed by the NetBSD
33 * Foundation, Inc. and its contributors.
34 * 4. Neither the name of The NetBSD Foundation nor the names of its
35 * contributors may be used to endorse or promote products derived
36 * from this software without specific prior written permission.
38 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
39 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
40 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
41 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
42 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
43 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
44 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
45 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
46 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
47 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
48 * POSSIBILITY OF SUCH DAMAGE.
52 #include <sys/param.h>
53 #include <sys/systm.h>
54 #include <sys/kernel.h>
55 #include <sys/malloc.h>
56 #include <sys/module.h>
59 #include <sys/fcntl.h>
60 #include <sys/filio.h>
63 #include <sys/vnode.h>
64 #include <sys/event.h>
65 #include <sys/sysctl.h>
66 #include <sys/thread2.h>
68 #include <bus/usb/usb.h>
69 #include <bus/usb/usbdi.h>
70 #include <bus/usb/usbdi_util.h>
74 SYSCTL_NODE(_hw_usb, OID_AUTO, ugen, CTLFLAG_RW, 0, "USB ugen");
77 #define DPRINTF(x) if (ugendebug) kprintf x
78 #define DPRINTFN(n,x) if (ugendebug>(n)) kprintf x
80 SYSCTL_INT(_hw_usb_ugen, OID_AUTO, debug, CTLFLAG_RW,
81 &ugendebug, 0, "ugen debug level");
87 static int ugen_bufsize = 16384;
88 SYSCTL_INT(_hw_usb_ugen, OID_AUTO, bufsize, CTLFLAG_RW,
89 &ugen_bufsize, 0, "ugen temporary buffer size");
91 #define UGEN_CHUNK 128 /* chunk size for read */
92 #define UGEN_IBSIZE 1020 /* buffer size */
94 #define UGEN_NISOFRAMES 500 /* 0.5 seconds worth */
95 #define UGEN_NISOREQS 6 /* number of outstanding xfer requests */
96 #define UGEN_NISORFRMS 4 /* number of frames (miliseconds) per req */
98 struct ugen_endpoint {
99 struct ugen_softc *sc;
101 usb_endpoint_descriptor_t *edesc;
102 usbd_interface_handle iface;
104 #define UGEN_ASLP 0x02 /* waiting for data */
105 #define UGEN_SHORT_OK 0x04 /* short xfers are OK */
106 usbd_pipe_handle pipeh;
109 u_char *ibuf; /* start of buffer (circular for isoc) */
110 u_char *fill; /* location for input (isoc) */
111 u_char *limit; /* end of circular buffer (isoc) */
112 u_char *cur; /* current read location (isoc) */
115 struct ugen_endpoint *sce;
116 usbd_xfer_handle xfer;
118 u_int16_t sizes[UGEN_NISORFRMS];
119 } isoreqs[UGEN_NISOREQS];
123 device_t sc_dev; /* base device */
124 usbd_device_handle sc_udev;
126 char sc_is_open[USB_MAX_ENDPOINTS];
127 struct ugen_endpoint sc_endpoints[USB_MAX_ENDPOINTS][2];
140 d_kqfilter_t ugenkqfilter;
142 static void ugen_filt_detach(struct knote *);
143 static int ugen_filt_read(struct knote *, long);
144 static int ugen_filt_write(struct knote *, long);
146 static struct dev_ops ugen_ops = {
149 .d_close = ugenclose,
151 .d_write = ugenwrite,
152 .d_ioctl = ugenioctl,
153 .d_kqfilter = ugenkqfilter
156 static void ugenintr(usbd_xfer_handle xfer, usbd_private_handle addr,
158 static void ugen_isoc_rintr(usbd_xfer_handle xfer, usbd_private_handle addr,
160 static int ugen_do_read(struct ugen_softc *, int, struct uio *, int);
161 static int ugen_do_write(struct ugen_softc *, int, struct uio *, int);
162 static int ugen_do_ioctl(struct ugen_softc *, int, u_long,
164 static void ugen_make_devnodes(struct ugen_softc *sc);
165 static void ugen_destroy_devnodes(struct ugen_softc *sc);
166 static int ugen_set_config(struct ugen_softc *sc, int configno);
167 static usb_config_descriptor_t *ugen_get_cdesc(struct ugen_softc *sc,
168 int index, int *lenp);
169 static usbd_status ugen_set_interface(struct ugen_softc *, int, int);
170 static int ugen_get_alt_index(struct ugen_softc *sc, int ifaceidx);
172 #define UGENUNIT(n) ((lminor(n) >> 4) & 0xff)
173 #define UGENENDPOINT(n) (minor(n) & 0xf)
174 #define UGENMINOR(u, e) (((u & 0xf) << 4) | ((u & 0xf0) << 12) | (e))
175 #define UGENUNITMASK 0xffff00f0
177 static device_probe_t ugen_match;
178 static device_attach_t ugen_attach;
179 static device_detach_t ugen_detach;
181 static devclass_t ugen_devclass;
183 static kobj_method_t ugen_methods[] = {
184 DEVMETHOD(device_probe, ugen_match),
185 DEVMETHOD(device_attach, ugen_attach),
186 DEVMETHOD(device_detach, ugen_detach),
190 static driver_t ugen_driver = {
193 sizeof(struct ugen_softc)
196 MODULE_DEPEND(ugen, usb, 1, 1, 1);
199 ugen_match(device_t self)
201 struct usb_attach_arg *uaa = device_get_ivars(self);
205 return (uaa->matchlvl);
208 return (UMATCH_GENERIC);
210 return (UMATCH_NONE);
214 ugen_attach(device_t self)
216 struct ugen_softc *sc = device_get_softc(self);
217 struct usb_attach_arg *uaa = device_get_ivars(self);
218 usbd_device_handle udev;
223 sc->sc_udev = udev = uaa->device;
225 memset(sc->sc_endpoints, 0, sizeof sc->sc_endpoints);
227 /* First set configuration index 0, the default one for ugen. */
228 err = usbd_set_config_index(udev, 0, 0);
230 kprintf("%s: setting configuration index 0 failed\n",
231 device_get_nameunit(sc->sc_dev));
235 conf = usbd_get_config_descriptor(udev)->bConfigurationValue;
237 /* Set up all the local state for this configuration. */
238 err = ugen_set_config(sc, conf);
240 kprintf("%s: setting configuration %d failed\n",
241 device_get_nameunit(sc->sc_dev), conf);
246 /* the main device, ctrl endpoint */
247 make_dev(&ugen_ops, UGENMINOR(device_get_unit(sc->sc_dev), 0),
248 UID_ROOT, GID_OPERATOR, 0644,
249 "%s", device_get_nameunit(sc->sc_dev));
251 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, sc->sc_dev);
256 ugen_make_devnodes(struct ugen_softc *sc)
261 for (endptno = 1; endptno < USB_MAX_ENDPOINTS; endptno++) {
262 if (sc->sc_endpoints[endptno][IN].sc != NULL ||
263 sc->sc_endpoints[endptno][OUT].sc != NULL ) {
264 /* endpt can be 0x81 and 0x01, representing
265 * endpoint address 0x01 and IN/OUT directions.
266 * We map both endpts to the same device,
267 * IN is reading from it, OUT is writing to it.
269 * In the if clause above we check whether one
270 * of the structs is populated.
272 dev = make_dev(&ugen_ops,
273 UGENMINOR(device_get_unit(sc->sc_dev), endptno),
274 UID_ROOT, GID_OPERATOR, 0644,
276 device_get_nameunit(sc->sc_dev), endptno);
277 if (sc->sc_endpoints[endptno][IN].sc != NULL) {
279 if (sc->sc_endpoints[endptno][IN].dev)
280 release_dev(sc->sc_endpoints[endptno][IN].dev);
281 sc->sc_endpoints[endptno][IN].dev = dev;
283 if (sc->sc_endpoints[endptno][OUT].sc != NULL) {
285 if (sc->sc_endpoints[endptno][OUT].dev)
286 release_dev(sc->sc_endpoints[endptno][OUT].dev);
287 sc->sc_endpoints[endptno][OUT].dev = dev;
294 ugen_destroy_devnodes(struct ugen_softc *sc)
296 int endptno, prev_sc_dying;
299 prev_sc_dying = sc->sc_dying;
302 /* destroy all devices for the other (existing) endpoints as well */
303 for (endptno = 1; endptno < USB_MAX_ENDPOINTS; endptno++) {
304 if (sc->sc_endpoints[endptno][IN].sc != NULL ||
305 sc->sc_endpoints[endptno][OUT].sc != NULL ) {
306 /* endpt can be 0x81 and 0x01, representing
307 * endpoint address 0x01 and IN/OUT directions.
308 * We map both endpoint addresses to the same device,
309 * IN is reading from it, OUT is writing to it.
311 * In the if clause above we check whether one
312 * of the structs is populated.
314 dev = sc->sc_endpoints[endptno][IN].dev;
317 sc->sc_endpoints[endptno][IN].dev = NULL;
319 dev = sc->sc_endpoints[endptno][OUT].dev;
322 sc->sc_endpoints[endptno][OUT].dev = NULL;
326 sc->sc_dying = prev_sc_dying;
330 ugen_set_config(struct ugen_softc *sc, int configno)
332 usbd_device_handle dev = sc->sc_udev;
333 usbd_interface_handle iface;
334 usb_endpoint_descriptor_t *ed;
335 struct ugen_endpoint *sce;
336 u_int8_t niface, nendpt;
337 int ifaceno, endptno, endpt;
341 DPRINTFN(1,("ugen_set_config: %s to configno %d, sc=%p\n",
342 device_get_nameunit(sc->sc_dev), configno, sc));
344 ugen_destroy_devnodes(sc);
346 /* We start at 1, not 0, because we don't care whether the
347 * control endpoint is open or not. It is always present.
349 for (endptno = 1; endptno < USB_MAX_ENDPOINTS; endptno++) {
350 if (sc->sc_is_open[endptno]) {
352 ("ugen_set_config: %s - endpoint %d is open\n",
353 device_get_nameunit(sc->sc_dev), endptno));
354 return (USBD_IN_USE);
358 /* Avoid setting the current value. */
359 if (usbd_get_config_descriptor(dev)->bConfigurationValue != configno) {
360 err = usbd_set_config_no(dev, configno, 1);
365 err = usbd_interface_count(dev, &niface);
368 memset(sc->sc_endpoints, 0, sizeof sc->sc_endpoints);
369 for (ifaceno = 0; ifaceno < niface; ifaceno++) {
370 DPRINTFN(1,("ugen_set_config: ifaceno %d\n", ifaceno));
371 err = usbd_device2interface_handle(dev, ifaceno, &iface);
374 err = usbd_endpoint_count(iface, &nendpt);
377 for (endptno = 0; endptno < nendpt; endptno++) {
378 ed = usbd_interface2endpoint_descriptor(iface,endptno);
379 endpt = ed->bEndpointAddress;
380 dir = UE_GET_DIR(endpt) == UE_DIR_IN ? IN : OUT;
381 sce = &sc->sc_endpoints[UE_GET_ADDR(endpt)][dir];
382 DPRINTFN(1,("ugen_set_config: endptno %d, endpt=0x%02x"
384 endptno, endpt, UE_GET_ADDR(endpt),
385 UE_GET_DIR(endpt), sce));
392 ugen_make_devnodes(sc);
394 return (USBD_NORMAL_COMPLETION);
398 ugenopen(struct dev_open_args *ap)
400 cdev_t dev = ap->a_head.a_dev;
401 struct ugen_softc *sc;
402 int unit = UGENUNIT(dev);
403 int endpt = UGENENDPOINT(dev);
404 usb_endpoint_descriptor_t *edesc;
405 struct ugen_endpoint *sce;
408 usbd_xfer_handle xfer;
412 sc = devclass_get_softc(ugen_devclass, unit);
416 DPRINTFN(5, ("ugenopen: flag=%d, mode=%d, unit=%d endpt=%d\n",
417 ap->a_oflags, ap->a_devtype, unit, endpt));
422 if (sc->sc_is_open[endpt])
425 if (endpt == USB_CONTROL_ENDPOINT) {
426 sc->sc_is_open[USB_CONTROL_ENDPOINT] = 1;
430 /* Make sure there are pipes for all directions. */
431 for (dir = OUT; dir <= IN; dir++) {
432 if (ap->a_oflags & (dir == OUT ? FWRITE : FREAD)) {
433 sce = &sc->sc_endpoints[endpt][dir];
434 if (sce == 0 || sce->edesc == 0)
439 /* Actually open the pipes. */
440 /* XXX Should back out properly if it fails. */
441 for (dir = OUT; dir <= IN; dir++) {
442 if (!(ap->a_oflags & (dir == OUT ? FWRITE : FREAD)))
444 sce = &sc->sc_endpoints[endpt][dir];
446 sce->timeout = USBD_NO_TIMEOUT;
447 DPRINTFN(5, ("ugenopen: sc=%p, endpt=%d, dir=%d, sce=%p\n",
448 sc, endpt, dir, sce));
450 switch (edesc->bmAttributes & UE_XFERTYPE) {
453 err = usbd_open_pipe(sce->iface,
454 edesc->bEndpointAddress, 0, &sce->pipeh);
459 isize = UGETW(edesc->wMaxPacketSize);
460 if (isize == 0) /* shouldn't happen */
462 sce->ibuf = kmalloc(isize, M_USBDEV, M_WAITOK);
463 DPRINTFN(5, ("ugenopen: intr endpt=%d,isize=%d\n",
465 if ((clist_alloc_cblocks(&sce->q, UGEN_IBSIZE,
466 UGEN_IBSIZE), 0) == -1)
468 err = usbd_open_pipe_intr(sce->iface,
469 edesc->bEndpointAddress,
470 USBD_SHORT_XFER_OK, &sce->pipeh, sce,
471 sce->ibuf, isize, ugenintr,
472 USBD_DEFAULT_INTERVAL);
474 kfree(sce->ibuf, M_USBDEV);
475 clist_free_cblocks(&sce->q);
478 DPRINTFN(5, ("ugenopen: interrupt open done\n"));
481 err = usbd_open_pipe(sce->iface,
482 edesc->bEndpointAddress, 0, &sce->pipeh);
489 isize = UGETW(edesc->wMaxPacketSize);
490 if (isize == 0) /* shouldn't happen */
492 sce->ibuf = kmalloc(isize * UGEN_NISOFRAMES,
494 sce->cur = sce->fill = sce->ibuf;
495 sce->limit = sce->ibuf + isize * UGEN_NISOFRAMES;
496 DPRINTFN(5, ("ugenopen: isoc endpt=%d, isize=%d\n",
498 err = usbd_open_pipe(sce->iface,
499 edesc->bEndpointAddress, 0, &sce->pipeh);
501 kfree(sce->ibuf, M_USBDEV);
504 for(i = 0; i < UGEN_NISOREQS; ++i) {
505 sce->isoreqs[i].sce = sce;
506 xfer = usbd_alloc_xfer(sc->sc_udev);
509 sce->isoreqs[i].xfer = xfer;
510 buf = usbd_alloc_buffer
511 (xfer, isize * UGEN_NISORFRMS);
516 sce->isoreqs[i].dmabuf = buf;
517 for(j = 0; j < UGEN_NISORFRMS; ++j)
518 sce->isoreqs[i].sizes[j] = isize;
520 (xfer, sce->pipeh, &sce->isoreqs[i],
521 sce->isoreqs[i].sizes,
522 UGEN_NISORFRMS, USBD_NO_COPY,
524 (void)usbd_transfer(xfer);
526 DPRINTFN(5, ("ugenopen: isoc open done\n"));
529 while (--i >= 0) /* implicit buffer free */
530 usbd_free_xfer(sce->isoreqs[i].xfer);
533 sce->timeout = USBD_DEFAULT_TIMEOUT;
537 sc->sc_is_open[endpt] = 1;
542 ugenclose(struct dev_close_args *ap)
544 cdev_t dev = ap->a_head.a_dev;
545 int endpt = UGENENDPOINT(dev);
546 struct ugen_softc *sc;
547 struct ugen_endpoint *sce;
551 sc = devclass_get_softc(ugen_devclass, UGENUNIT(dev));
553 DPRINTFN(5, ("ugenclose: flag=%d, mode=%d, unit=%d, endpt=%d\n",
554 ap->a_fflag, ap->a_devtype, UGENUNIT(dev), endpt));
557 if (!sc->sc_is_open[endpt]) {
558 kprintf("ugenclose: not open\n");
563 if (endpt == USB_CONTROL_ENDPOINT) {
564 DPRINTFN(5, ("ugenclose: close control\n"));
565 sc->sc_is_open[endpt] = 0;
569 for (dir = OUT; dir <= IN; dir++) {
570 if (!(ap->a_fflag & (dir == OUT ? FWRITE : FREAD)))
572 sce = &sc->sc_endpoints[endpt][dir];
573 if (sce->pipeh == NULL)
575 DPRINTFN(5, ("ugenclose: endpt=%d dir=%d sce=%p\n",
578 usbd_abort_pipe(sce->pipeh);
579 usbd_close_pipe(sce->pipeh);
582 switch (sce->edesc->bmAttributes & UE_XFERTYPE) {
584 ndflush(&sce->q, sce->q.c_cc);
585 clist_free_cblocks(&sce->q);
588 for (i = 0; i < UGEN_NISOREQS; ++i)
589 usbd_free_xfer(sce->isoreqs[i].xfer);
594 if (sce->ibuf != NULL) {
595 kfree(sce->ibuf, M_USBDEV);
597 clist_free_cblocks(&sce->q);
600 sc->sc_is_open[endpt] = 0;
606 ugen_do_read(struct ugen_softc *sc, int endpt, struct uio *uio, int flag)
608 struct ugen_endpoint *sce = &sc->sc_endpoints[endpt][IN];
611 usbd_xfer_handle xfer;
615 u_char buffer[UGEN_CHUNK];
617 DPRINTFN(5, ("%s: ugenread: %d\n", device_get_nameunit(sc->sc_dev), endpt));
622 if (endpt == USB_CONTROL_ENDPOINT)
626 if (sce->edesc == NULL) {
627 kprintf("ugenread: no edesc\n");
630 if (sce->pipeh == NULL) {
631 kprintf("ugenread: no pipe\n");
636 buf = getugenbuf(ugen_bufsize, &ugen_bbsize);
638 switch (sce->edesc->bmAttributes & UE_XFERTYPE) {
640 /* Block until activity occurred. */
642 while (sce->q.c_cc == 0) {
643 if (flag & IO_NDELAY) {
648 sce->state |= UGEN_ASLP;
649 DPRINTFN(5, ("ugenread: sleep on %p\n", sce));
650 error = tsleep(sce, PCATCH, "ugenri",
651 (sce->timeout * hz + 999) / 1000);
652 sce->state &= ~UGEN_ASLP;
653 DPRINTFN(5, ("ugenread: woke, error=%d\n", error));
656 if (error == EAGAIN) {
657 error = 0; /* timeout, return 0 bytes */
665 /* Transfer as many chunks as possible. */
666 while (sce->q.c_cc > 0 && uio->uio_resid > 0 && !error) {
667 n = szmin(sce->q.c_cc, uio->uio_resid);
668 if (n > sizeof(buffer))
671 /* Remove a small chunk from the input queue. */
672 q_to_b(&sce->q, buffer, n);
673 DPRINTFN(5, ("ugenread: got %d chars\n", n));
675 /* Copy the data to the user process. */
676 error = uiomove(buffer, n, uio);
682 xfer = usbd_alloc_xfer(sc->sc_udev);
687 while ((n = szmin(ugen_bbsize, uio->uio_resid)) != 0) {
688 DPRINTFN(1, ("ugenread: start transfer %d bytes\n",n));
690 err = usbd_bulk_transfer(
692 sce->state & UGEN_SHORT_OK ?
693 USBD_SHORT_XFER_OK : 0,
694 sce->timeout, buf, &tn, "ugenrb");
696 if (err == USBD_INTERRUPTED)
698 else if (err == USBD_TIMEOUT)
704 DPRINTFN(1, ("ugenread: got %d bytes\n", tn));
705 error = uiomove(buf, tn, uio);
709 usbd_free_xfer(xfer);
713 while (sce->cur == sce->fill) {
714 if (flag & IO_NDELAY) {
719 sce->state |= UGEN_ASLP;
720 DPRINTFN(5, ("ugenread: sleep on %p\n", sce));
721 error = tsleep(sce, PCATCH, "ugenri",
722 (sce->timeout * hz + 999) / 1000);
723 sce->state &= ~UGEN_ASLP;
724 DPRINTFN(5, ("ugenread: woke, error=%d\n", error));
727 if (error == EAGAIN) {
728 error = 0; /* timeout, return 0 bytes */
735 while (sce->cur != sce->fill && uio->uio_resid > 0 && !error) {
736 if (sce->fill > sce->cur)
737 n = szmin(sce->fill - sce->cur, uio->uio_resid);
739 n = szmin(sce->limit- sce->cur, uio->uio_resid);
741 DPRINTFN(5, ("ugenread: isoc got %d chars\n", n));
743 /* Copy the data to the user process. */
744 error = uiomove(sce->cur, n, uio);
748 if(sce->cur >= sce->limit)
749 sce->cur = sce->ibuf;
760 relugenbuf(buf, ugen_bbsize);
765 ugenread(struct dev_read_args *ap)
767 cdev_t dev = ap->a_head.a_dev;
768 int endpt = UGENENDPOINT(dev);
769 struct ugen_softc *sc;
772 sc = devclass_get_softc(ugen_devclass, UGENUNIT(dev));
778 error = ugen_do_read(sc, endpt, ap->a_uio, ap->a_ioflag);
779 if (--sc->sc_refcnt < 0)
780 usb_detach_wakeup(sc->sc_dev);
785 ugen_do_write(struct ugen_softc *sc, int endpt, struct uio *uio, int flag)
787 struct ugen_endpoint *sce = &sc->sc_endpoints[endpt][OUT];
792 usbd_xfer_handle xfer;
795 DPRINTFN(5, ("%s: ugenwrite: %d\n", device_get_nameunit(sc->sc_dev), endpt));
800 if (endpt == USB_CONTROL_ENDPOINT)
804 if (sce->edesc == NULL) {
805 kprintf("ugenwrite: no edesc\n");
808 if (sce->pipeh == NULL) {
809 kprintf("ugenwrite: no pipe\n");
814 buf = getugenbuf(ugen_bufsize, &ugen_bbsize);
816 switch (sce->edesc->bmAttributes & UE_XFERTYPE) {
818 xfer = usbd_alloc_xfer(sc->sc_udev);
823 while ((n = szmin(ugen_bbsize, uio->uio_resid)) != 0) {
824 error = uiomove(buf, n, uio);
827 DPRINTFN(1, ("ugenwrite: transfer %d bytes\n", n));
828 err = usbd_bulk_transfer(xfer, sce->pipeh, 0,
829 sce->timeout, buf, &n,"ugenwb");
831 if (err == USBD_INTERRUPTED)
833 else if (err == USBD_TIMEOUT)
840 usbd_free_xfer(xfer);
843 xfer = usbd_alloc_xfer(sc->sc_udev);
848 while ((n = szmin(UGETW(sce->edesc->wMaxPacketSize),
849 uio->uio_resid)) != 0) {
850 error = uiomove(buf, n, uio);
853 DPRINTFN(1, ("ugenwrite: transfer %d bytes\n", n));
854 err = usbd_intr_transfer(xfer, sce->pipeh, 0,
855 sce->timeout, buf, &n,"ugenwi");
857 if (err == USBD_INTERRUPTED)
859 else if (err == USBD_TIMEOUT)
866 usbd_free_xfer(xfer);
873 relugenbuf(buf, ugen_bbsize);
878 ugenwrite(struct dev_write_args *ap)
880 cdev_t dev = ap->a_head.a_dev;
881 int endpt = UGENENDPOINT(dev);
882 struct ugen_softc *sc;
885 sc = devclass_get_softc(ugen_devclass, UGENUNIT(dev));
891 error = ugen_do_write(sc, endpt, ap->a_uio, ap->a_ioflag);
892 if (--sc->sc_refcnt < 0)
893 usb_detach_wakeup(sc->sc_dev);
898 ugen_detach(device_t self)
900 struct ugen_softc *sc = device_get_softc(self);
901 struct ugen_endpoint *sce;
904 DPRINTF(("ugen_detach: sc=%p\n", sc));
907 /* Abort all pipes. Causes processes waiting for transfer to wake. */
908 for (i = 0; i < USB_MAX_ENDPOINTS; i++) {
909 for (dir = OUT; dir <= IN; dir++) {
910 sce = &sc->sc_endpoints[i][dir];
911 if (sce && sce->pipeh)
912 usbd_abort_pipe(sce->pipeh);
913 KNOTE(&sce->rkq.ki_note, 0);
917 if (--sc->sc_refcnt >= 0) {
919 for (i = 0; i < USB_MAX_ENDPOINTS; i++)
920 wakeup(&sc->sc_endpoints[i][IN]);
921 /* Wait for processes to go away. */
922 usb_detach_wait(sc->sc_dev);
926 /* destroy the device for the control endpoint */
927 ugen_destroy_devnodes(sc);
928 dev_ops_remove_minor(&ugen_ops,
929 /*UGENUNITMASK,*/ UGENMINOR(device_get_unit(sc->sc_dev), 0));
930 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, sc->sc_dev);
935 ugenintr(usbd_xfer_handle xfer, usbd_private_handle addr, usbd_status status)
937 struct ugen_endpoint *sce = addr;
938 /*struct ugen_softc *sc = sce->sc;*/
942 if (status == USBD_CANCELLED)
945 if (status != USBD_NORMAL_COMPLETION) {
946 DPRINTF(("ugenintr: status=%d\n", status));
947 if (status == USBD_STALLED)
948 usbd_clear_endpoint_stall_async(sce->pipeh);
952 usbd_get_xfer_status(xfer, NULL, NULL, &count, NULL);
955 DPRINTFN(5, ("ugenintr: xfer=%p status=%d count=%d\n",
956 xfer, status, count));
957 DPRINTFN(5, (" data = %02x %02x %02x\n",
958 ibuf[0], ibuf[1], ibuf[2]));
960 (void)b_to_q(ibuf, count, &sce->q);
962 if (sce->state & UGEN_ASLP) {
963 sce->state &= ~UGEN_ASLP;
964 DPRINTFN(5, ("ugen_intr: waking %p\n", sce));
967 KNOTE(&sce->rkq.ki_note, 0);
971 ugen_isoc_rintr(usbd_xfer_handle xfer, usbd_private_handle addr,
974 struct isoreq *req = addr;
975 struct ugen_endpoint *sce = req->sce;
979 /* Return if we are aborting. */
980 if (status == USBD_CANCELLED)
983 usbd_get_xfer_status(xfer, NULL, NULL, &count, NULL);
984 DPRINTFN(5,("ugen_isoc_rintr: xfer %d, count=%d\n",
985 (int)(req - sce->isoreqs),
988 /* throw away oldest input if the buffer is full */
989 if(sce->fill < sce->cur && sce->cur <= sce->fill + count) {
991 if(sce->cur >= sce->limit)
992 sce->cur = sce->ibuf + (sce->limit - sce->cur);
993 DPRINTFN(5, ("ugen_isoc_rintr: throwing away %d bytes\n",
997 isize = UGETW(sce->edesc->wMaxPacketSize);
998 for (i = 0; i < UGEN_NISORFRMS; i++) {
999 u_int32_t actlen = req->sizes[i];
1000 char const *buf = (char const *)req->dmabuf + isize * i;
1002 /* copy data to buffer */
1003 while (actlen > 0) {
1004 n = min(actlen, sce->limit - sce->fill);
1005 memcpy(sce->fill, buf, n);
1010 if(sce->fill == sce->limit)
1011 sce->fill = sce->ibuf;
1014 /* setup size for next transfer */
1015 req->sizes[i] = isize;
1018 usbd_setup_isoc_xfer(xfer, sce->pipeh, req, req->sizes, UGEN_NISORFRMS,
1019 USBD_NO_COPY, ugen_isoc_rintr);
1020 (void)usbd_transfer(xfer);
1022 if (sce->state & UGEN_ASLP) {
1023 sce->state &= ~UGEN_ASLP;
1024 DPRINTFN(5, ("ugen_isoc_rintr: waking %p\n", sce));
1027 KNOTE(&sce->rkq.ki_note, 0);
1031 ugen_set_interface(struct ugen_softc *sc, int ifaceidx, int altno)
1033 usbd_interface_handle iface;
1034 usb_endpoint_descriptor_t *ed;
1036 struct ugen_endpoint *sce;
1037 u_int8_t niface, nendpt, endptno, endpt;
1040 DPRINTFN(15, ("ugen_set_interface %d %d\n", ifaceidx, altno));
1042 err = usbd_interface_count(sc->sc_udev, &niface);
1045 if (ifaceidx < 0 || ifaceidx >= niface)
1046 return (USBD_INVAL);
1048 err = usbd_device2interface_handle(sc->sc_udev, ifaceidx, &iface);
1051 err = usbd_endpoint_count(iface, &nendpt);
1055 /* destroy the existing devices, we remake the new ones in a moment */
1056 ugen_destroy_devnodes(sc);
1058 /* XXX should only do this after setting new altno has succeeded */
1059 for (endptno = 0; endptno < nendpt; endptno++) {
1060 ed = usbd_interface2endpoint_descriptor(iface,endptno);
1061 endpt = ed->bEndpointAddress;
1062 dir = UE_GET_DIR(endpt) == UE_DIR_IN ? IN : OUT;
1063 sce = &sc->sc_endpoints[UE_GET_ADDR(endpt)][dir];
1069 /* change setting */
1070 err = usbd_set_interface(iface, altno);
1074 err = usbd_endpoint_count(iface, &nendpt);
1077 for (endptno = 0; endptno < nendpt; endptno++) {
1078 ed = usbd_interface2endpoint_descriptor(iface,endptno);
1079 endpt = ed->bEndpointAddress;
1080 dir = UE_GET_DIR(endpt) == UE_DIR_IN ? IN : OUT;
1081 sce = &sc->sc_endpoints[UE_GET_ADDR(endpt)][dir];
1087 /* make the new devices */
1088 ugen_make_devnodes(sc);
1093 /* Retrieve a complete descriptor for a certain device and index. */
1094 static usb_config_descriptor_t *
1095 ugen_get_cdesc(struct ugen_softc *sc, int index, int *lenp)
1097 usb_config_descriptor_t *cdesc, *tdesc, cdescr;
1101 if (index == USB_CURRENT_CONFIG_INDEX) {
1102 tdesc = usbd_get_config_descriptor(sc->sc_udev);
1103 len = UGETW(tdesc->wTotalLength);
1106 cdesc = kmalloc(len, M_TEMP, M_INTWAIT);
1107 memcpy(cdesc, tdesc, len);
1108 DPRINTFN(5,("ugen_get_cdesc: current, len=%d\n", len));
1110 err = usbd_get_config_desc(sc->sc_udev, index, &cdescr);
1113 len = UGETW(cdescr.wTotalLength);
1114 DPRINTFN(5,("ugen_get_cdesc: index=%d, len=%d\n", index, len));
1117 cdesc = kmalloc(len, M_TEMP, M_INTWAIT);
1118 err = usbd_get_config_desc_full(sc->sc_udev, index, cdesc, len);
1120 kfree(cdesc, M_TEMP);
1128 ugen_get_alt_index(struct ugen_softc *sc, int ifaceidx)
1130 usbd_interface_handle iface;
1133 err = usbd_device2interface_handle(sc->sc_udev, ifaceidx, &iface);
1136 return (usbd_get_interface_altindex(iface));
1140 ugen_do_ioctl(struct ugen_softc *sc, int endpt, u_long cmd,
1141 caddr_t addr, int flag)
1143 struct ugen_endpoint *sce;
1145 usbd_interface_handle iface;
1146 struct usb_config_desc *cd;
1147 usb_config_descriptor_t *cdesc;
1148 struct usb_interface_desc *id;
1149 usb_interface_descriptor_t *idesc;
1150 struct usb_endpoint_desc *ed;
1151 usb_endpoint_descriptor_t *edesc;
1152 struct usb_alt_interface *ai;
1153 struct usb_string_desc *si;
1156 DPRINTFN(5, ("ugenioctl: cmd=%08lx\n", cmd));
1161 case USB_SET_SHORT_XFER:
1162 /* This flag only affects read */
1163 if (endpt == USB_CONTROL_ENDPOINT)
1165 sce = &sc->sc_endpoints[endpt][IN];
1167 if (sce->pipeh == NULL) {
1168 kprintf("ugenioctl: USB_SET_SHORT_XFER, no pipe\n");
1173 sce->state |= UGEN_SHORT_OK;
1175 sce->state &= ~UGEN_SHORT_OK;
1177 case USB_SET_TIMEOUT:
1178 sce = &sc->sc_endpoints[endpt][IN];
1179 sce->timeout = *(int *)addr;
1180 sce = &sc->sc_endpoints[endpt][OUT];
1181 sce->timeout = *(int *)addr;
1187 if (endpt != USB_CONTROL_ENDPOINT)
1193 ugendebug = *(int *)addr;
1196 case USB_GET_CONFIG:
1197 err = usbd_get_config(sc->sc_udev, &conf);
1200 *(int *)addr = conf;
1202 case USB_SET_CONFIG:
1203 if (!(flag & FWRITE))
1205 err = ugen_set_config(sc, *(int *)addr);
1207 case USBD_NORMAL_COMPLETION:
1215 case USB_GET_ALTINTERFACE:
1216 ai = (struct usb_alt_interface *)addr;
1217 err = usbd_device2interface_handle(sc->sc_udev,
1218 ai->uai_interface_index, &iface);
1221 idesc = usbd_get_interface_descriptor(iface);
1224 ai->uai_alt_no = idesc->bAlternateSetting;
1226 case USB_SET_ALTINTERFACE:
1227 if (!(flag & FWRITE))
1229 ai = (struct usb_alt_interface *)addr;
1230 err = usbd_device2interface_handle(sc->sc_udev,
1231 ai->uai_interface_index, &iface);
1234 err = ugen_set_interface(sc, ai->uai_interface_index, ai->uai_alt_no);
1238 case USB_GET_NO_ALT:
1239 ai = (struct usb_alt_interface *)addr;
1240 cdesc = ugen_get_cdesc(sc, ai->uai_config_index, 0);
1243 idesc = usbd_find_idesc(cdesc, ai->uai_interface_index, 0);
1244 if (idesc == NULL) {
1245 kfree(cdesc, M_TEMP);
1248 ai->uai_alt_no = usbd_get_no_alts(cdesc, idesc->bInterfaceNumber);
1249 kfree(cdesc, M_TEMP);
1251 case USB_GET_DEVICE_DESC:
1252 *(usb_device_descriptor_t *)addr =
1253 *usbd_get_device_descriptor(sc->sc_udev);
1255 case USB_GET_CONFIG_DESC:
1256 cd = (struct usb_config_desc *)addr;
1257 cdesc = ugen_get_cdesc(sc, cd->ucd_config_index, 0);
1260 cd->ucd_desc = *cdesc;
1261 kfree(cdesc, M_TEMP);
1263 case USB_GET_INTERFACE_DESC:
1264 id = (struct usb_interface_desc *)addr;
1265 cdesc = ugen_get_cdesc(sc, id->uid_config_index, 0);
1268 if (id->uid_config_index == USB_CURRENT_CONFIG_INDEX &&
1269 id->uid_alt_index == USB_CURRENT_ALT_INDEX)
1270 alt = ugen_get_alt_index(sc, id->uid_interface_index);
1272 alt = id->uid_alt_index;
1273 idesc = usbd_find_idesc(cdesc, id->uid_interface_index, alt);
1274 if (idesc == NULL) {
1275 kfree(cdesc, M_TEMP);
1278 id->uid_desc = *idesc;
1279 kfree(cdesc, M_TEMP);
1281 case USB_GET_ENDPOINT_DESC:
1282 ed = (struct usb_endpoint_desc *)addr;
1283 cdesc = ugen_get_cdesc(sc, ed->ued_config_index, 0);
1286 if (ed->ued_config_index == USB_CURRENT_CONFIG_INDEX &&
1287 ed->ued_alt_index == USB_CURRENT_ALT_INDEX)
1288 alt = ugen_get_alt_index(sc, ed->ued_interface_index);
1290 alt = ed->ued_alt_index;
1291 edesc = usbd_find_edesc(cdesc, ed->ued_interface_index,
1292 alt, ed->ued_endpoint_index);
1293 if (edesc == NULL) {
1294 kfree(cdesc, M_TEMP);
1297 ed->ued_desc = *edesc;
1298 kfree(cdesc, M_TEMP);
1300 case USB_GET_FULL_DESC:
1305 struct usb_full_desc *fd = (struct usb_full_desc *)addr;
1308 cdesc = ugen_get_cdesc(sc, fd->ufd_config_index, &len);
1309 if (len > fd->ufd_size)
1311 iov.iov_base = (caddr_t)fd->ufd_data;
1315 uio.uio_resid = len;
1317 uio.uio_segflg = UIO_USERSPACE;
1318 uio.uio_rw = UIO_READ;
1319 uio.uio_td = curthread;
1320 error = uiomove((void *)cdesc, len, &uio);
1321 kfree(cdesc, M_TEMP);
1324 case USB_GET_STRING_DESC:
1328 si = (struct usb_string_desc *)addr;
1329 err = usbd_get_string_desc(sc->sc_udev, si->usd_string_index,
1330 si->usd_language_id, &si->usd_desc, &size);
1335 case USB_DO_REQUEST:
1337 struct usb_ctl_request *ur = (void *)addr;
1338 int len = UGETW(ur->ucr_request.wLength);
1345 if (!(flag & FWRITE))
1347 /* Avoid requests that would damage the bus integrity. */
1348 if ((ur->ucr_request.bmRequestType == UT_WRITE_DEVICE &&
1349 ur->ucr_request.bRequest == UR_SET_ADDRESS) ||
1350 (ur->ucr_request.bmRequestType == UT_WRITE_DEVICE &&
1351 ur->ucr_request.bRequest == UR_SET_CONFIG) ||
1352 (ur->ucr_request.bmRequestType == UT_WRITE_INTERFACE &&
1353 ur->ucr_request.bRequest == UR_SET_INTERFACE))
1356 if (len < 0 || len > 32767)
1359 iov.iov_base = (caddr_t)ur->ucr_data;
1363 uio.uio_resid = len;
1365 uio.uio_segflg = UIO_USERSPACE;
1367 ur->ucr_request.bmRequestType & UT_READ ?
1368 UIO_READ : UIO_WRITE;
1369 uio.uio_td = curthread;
1370 ptr = kmalloc(len, M_TEMP, M_WAITOK);
1371 if (uio.uio_rw == UIO_WRITE) {
1372 error = uiomove(ptr, len, &uio);
1377 sce = &sc->sc_endpoints[endpt][IN];
1378 err = usbd_do_request_flags(sc->sc_udev, &ur->ucr_request,
1379 ptr, ur->ucr_flags, &ur->ucr_actlen, sce->timeout);
1385 if (uio.uio_rw == UIO_READ) {
1386 error = uiomove(ptr, len, &uio);
1396 case USB_GET_DEVICEINFO:
1397 usbd_fill_deviceinfo(sc->sc_udev,
1398 (struct usb_device_info *)addr, 1);
1407 ugenioctl(struct dev_ioctl_args *ap)
1409 cdev_t dev = ap->a_head.a_dev;
1410 int endpt = UGENENDPOINT(dev);
1411 struct ugen_softc *sc;
1414 sc = devclass_get_softc(ugen_devclass, UGENUNIT(dev));
1419 error = ugen_do_ioctl(sc, endpt, ap->a_cmd, ap->a_data, ap->a_fflag);
1420 if (--sc->sc_refcnt < 0)
1421 usb_detach_wakeup(sc->sc_dev);
1425 static struct filterops ugen_filtops_read =
1426 { FILTEROP_ISFD, NULL, ugen_filt_detach, ugen_filt_read };
1427 static struct filterops ugen_filtops_write =
1428 { FILTEROP_ISFD, NULL, ugen_filt_detach, ugen_filt_write };
1431 ugenkqfilter(struct dev_kqfilter_args *ap)
1433 cdev_t dev = ap->a_head.a_dev;
1434 struct knote *kn = ap->a_kn;
1435 struct klist *klist;
1436 struct ugen_softc *sc;
1437 struct ugen_endpoint *sce;
1439 sc = devclass_get_softc(ugen_devclass, UGENUNIT(dev));
1446 /* Do not allow filter on a control endpoint */
1447 if (UGENENDPOINT(dev) == USB_CONTROL_ENDPOINT)
1452 switch (kn->kn_filter) {
1454 sce = &sc->sc_endpoints[UGENENDPOINT(dev)][IN];
1455 kn->kn_fop = &ugen_filtops_read;
1456 kn->kn_hook = (caddr_t)dev;
1459 sce = &sc->sc_endpoints[UGENENDPOINT(dev)][OUT];
1460 kn->kn_fop = &ugen_filtops_write;
1461 kn->kn_hook = (caddr_t)dev;
1464 ap->a_result = EOPNOTSUPP;
1468 if (sce->edesc != NULL || sce->pipeh != NULL) {
1469 klist = &sce->rkq.ki_note;
1470 knote_insert(klist, kn);
1477 ugen_filt_detach(struct knote *kn)
1479 cdev_t dev = (cdev_t)kn->kn_hook;
1480 struct ugen_softc *sc;
1481 struct ugen_endpoint *sce;
1482 struct klist *klist;
1484 sc = devclass_get_softc(ugen_devclass, UGENUNIT(dev));
1486 switch (kn->kn_filter) {
1488 sce = &sc->sc_endpoints[UGENENDPOINT(dev)][IN];
1491 sce = &sc->sc_endpoints[UGENENDPOINT(dev)][OUT];
1497 if (sce->edesc != NULL || sce->pipeh != NULL) {
1498 klist = &sce->rkq.ki_note;
1499 knote_remove(klist, kn);
1504 ugen_filt_read(struct knote *kn, long hint)
1506 cdev_t dev = (cdev_t)kn->kn_hook;
1507 struct ugen_softc *sc;
1508 struct ugen_endpoint *sce;
1511 sc = devclass_get_softc(ugen_devclass, UGENUNIT(dev));
1512 sce = &sc->sc_endpoints[UGENENDPOINT(dev)][IN];
1514 switch (sce->edesc->bmAttributes & UE_XFERTYPE) {
1516 if (sce->q.c_cc > 0)
1519 case UE_ISOCHRONOUS:
1520 if (sce->cur != sce->fill)
1534 ugen_filt_write(struct knote *kn, long hint)
1536 cdev_t dev = (cdev_t)kn->kn_hook;
1537 struct ugen_softc *sc;
1538 struct ugen_endpoint *sce;
1541 sc = devclass_get_softc(ugen_devclass, UGENUNIT(dev));
1542 sce = &sc->sc_endpoints[UGENENDPOINT(dev)][OUT];
1544 switch (sce->edesc->bmAttributes & UE_XFERTYPE) {
1546 if (sce->q.c_cc > 0)
1549 case UE_ISOCHRONOUS:
1550 if (sce->cur != sce->fill)
1563 DRIVER_MODULE(ugen, uhub, ugen_driver, ugen_devclass, usbd_driver_load, NULL);