2 * $NetBSD: uscanner.c,v 1.30 2002/07/11 21:14:36 augustss Exp $
3 * $FreeBSD: src/sys/dev/usb/uscanner.c,v 1.48 2003/12/22 19:58:27 sanpei Exp $
4 * $DragonFly: src/sys/dev/usbmisc/uscanner/uscanner.c,v 1.26 2007/11/06 07:37:01 hasso Exp $
7 /* Also already merged from NetBSD:
8 * $NetBSD: uscanner.c,v 1.33 2002/09/23 05:51:24 simonb Exp $
12 * Copyright (c) 2000 The NetBSD Foundation, Inc.
13 * All rights reserved.
15 * This code is derived from software contributed to The NetBSD Foundation
16 * by Lennart Augustsson (lennart@augustsson.net) at
17 * Carlstedt Research & Technology
18 * and Nick Hibma (n_hibma@qubesoft.com).
20 * Redistribution and use in source and binary forms, with or without
21 * modification, are permitted provided that the following conditions
23 * 1. Redistributions of source code must retain the above copyright
24 * notice, this list of conditions and the following disclaimer.
25 * 2. Redistributions in binary form must reproduce the above copyright
26 * notice, this list of conditions and the following disclaimer in the
27 * documentation and/or other materials provided with the distribution.
28 * 3. All advertising materials mentioning features or use of this software
29 * must display the following acknowledgement:
30 * This product includes software developed by the NetBSD
31 * Foundation, Inc. and its contributors.
32 * 4. Neither the name of The NetBSD Foundation nor the names of its
33 * contributors may be used to endorse or promote products derived
34 * from this software without specific prior written permission.
36 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
37 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
38 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
39 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
40 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
41 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
42 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
43 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
44 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
45 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
46 * POSSIBILITY OF SUCH DAMAGE.
50 #include <sys/param.h>
51 #include <sys/systm.h>
52 #include <sys/kernel.h>
53 #include <sys/malloc.h>
54 #include <sys/module.h>
57 #include <sys/fcntl.h>
58 #include <sys/filio.h>
61 #include <sys/select.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>
73 #define DPRINTF(x) if (uscannerdebug) kprintf x
74 #define DPRINTFN(n,x) if (uscannerdebug>(n)) kprintf x
75 int uscannerdebug = 0;
76 SYSCTL_NODE(_hw_usb, OID_AUTO, uscanner, CTLFLAG_RW, 0, "USB uscanner");
77 SYSCTL_INT(_hw_usb_uscanner, OID_AUTO, debug, CTLFLAG_RW,
78 &uscannerdebug, 0, "uscanner debug level");
85 struct usb_devno devno;
87 #define USC_KEEP_OPEN 1
90 /* Table of scanners that may work with this driver. */
91 static const struct uscan_info uscanner_devs[] = {
92 /* Acer Peripherals */
93 {{ USB_DEVICE(0x04a5, 0x2022) }, 0 }, /* Acerscan 320U */
94 {{ USB_DEVICE(0x04a5, 0x2040) }, 0 }, /* Acerscan 640U */
95 {{ USB_DEVICE(0x04a5, 0x2060) }, 0 }, /* Acerscan 620U */
96 {{ USB_DEVICE(0x04a5, 0x12a6) }, 0 }, /* Acerscan C310U */
98 {{ USB_DEVICE(0x06bd, 0x0002) }, 0 }, /* SnapScan 1236U */
99 {{ USB_DEVICE(0x06bd, 0x0001) }, 0 }, /* SnapScan 1212U */
100 {{ USB_DEVICE(0x06bd, 0x2061) }, 0 }, /* SnapScan 1212U */
101 {{ USB_DEVICE(0x06bd, 0x0100) }, 0 }, /* SnapScan Touch */
102 {{ USB_DEVICE(0x06bd, 0x208d) }, 0 }, /* SnapScan e40 */
103 {{ USB_DEVICE(0x06bd, 0x208f) }, 0 }, /* SnapScan e50 */
104 {{ USB_DEVICE(0x06bd, 0x2091) }, 0 }, /* SnapScan e20 */
105 {{ USB_DEVICE(0x06bd, 0x2095) }, 0 }, /* SnapScan e25 */
106 {{ USB_DEVICE(0x06bd, 0x2097) }, 0 }, /* SnapScan e26 */
107 {{ USB_DEVICE(0x06bd, 0x20fd) }, 0 }, /* SnapScan e52 */
109 {{ USB_DEVICE(0x0638, 0x0268) }, 0 }, /* Avision 1200U */
111 {{ USB_DEVICE(0x04a9, 0x2206) }, 0 }, /* CanoScan N656U */
112 {{ USB_DEVICE(0x04a9, 0x220d) }, 0 }, /* CanoScan N676U */
113 {{ USB_DEVICE(0x04a9, 0x2208) }, 0 }, /* CanoScan D660U */
115 {{ USB_DEVICE(0x0458, 0x2001) }, 0 }, /* ColorPage Vivid-Pro */
117 {{ USB_DEVICE(0x03f0, 0x0605) }, 0 }, /* ScanJet 2200C */
118 {{ USB_DEVICE(0x03f0, 0x0205) }, 0 }, /* ScanJet 3300C */
119 {{ USB_DEVICE(0x03f0, 0x0405) }, 0 }, /* ScanJet 3400cse */
120 {{ USB_DEVICE(0x03f0, 0x0101) }, 0 }, /* Scanjet 4100C */
121 {{ USB_DEVICE(0x03f0, 0x0105) }, 0 }, /* ScanJet 4200C */
122 {{ USB_DEVICE(0x03f0, 0x0305) }, 0 }, /* Scanjet 4300C */
123 {{ USB_DEVICE(0x03f0, 0x0102) }, 0 }, /* Photosmart S20 */
124 {{ USB_DEVICE(0x03f0, 0x0401) }, 0 }, /* Scanjet 5200C */
125 {{ USB_DEVICE(0x03f0, 0x0701) }, 0 }, /* Scanjet 5300C */
126 {{ USB_DEVICE(0x03f0, 0x1005) }, 0 }, /* Scanjet 5400C */
127 {{ USB_DEVICE(0x03f0, 0x0201) }, 0 }, /* ScanJet 6200C */
128 {{ USB_DEVICE(0x03f0, 0x0601) }, 0 }, /* Scanjet 6300C */
130 {{ USB_DEVICE(0x04ce, 0x0300) }, 0 }, /* Phantom 336CX - C3 */
132 {{ USB_DEVICE(0x05da, 0x0099) }, 0 }, /* Phantom 336CX - C3 */
133 {{ USB_DEVICE(0x05da, 0x0094) }, 0 }, /* ScanMaker X6 - X6U */
134 {{ USB_DEVICE(0x05da, 0x00a0) }, 0 }, /* Phantom 336CX - C3 */
135 {{ USB_DEVICE(0x05da, 0x009a) }, 0 }, /* Phantom C6 */
136 {{ USB_DEVICE(0x05da, 0x00a3) }, 0 }, /* ScanMaker V6USL */
137 {{ USB_DEVICE(0x05da, 0x80a3) }, 0 }, /* ScanMaker V6USL */
138 {{ USB_DEVICE(0x05da, 0x80ac) }, 0 }, /* ScanMaker V6UL */
140 {{ USB_DEVICE(0x0686, 0x400e) }, 0 }, /* Dimage 5400 */
142 {{ USB_DEVICE(0x055f, 0x0001) }, 0 }, /* 1200 CU */
143 {{ USB_DEVICE(0x055f, 0x0010) }, 0 }, /* BearPaw 1200F */
144 {{ USB_DEVICE(0x055f, 0x021e) }, 0 }, /* BearPaw 1200TA */
145 {{ USB_DEVICE(0x055f, 0x0873) }, 0 }, /* 600 USB */
146 {{ USB_DEVICE(0x055f, 0x0002) }, 0 }, /* 600 CU */
147 {{ USB_DEVICE(0x055f, 0x0003) }, 0 }, /* 1200 USB */
148 {{ USB_DEVICE(0x055f, 0x0006) }, 0 }, /* 1200 UB */
149 {{ USB_DEVICE(0x055f, 0x0007) }, 0 }, /* 1200 USB */
150 {{ USB_DEVICE(0x055f, 0x0008) }, 0 }, /* 1200 CU */
152 {{ USB_DEVICE(0x0400, 0x1000) }, 0 }, /* BearPaw 1200 */
153 {{ USB_DEVICE(0x0400, 0x1001) }, 0 }, /* BearPaw 2400 */
155 {{ USB_DEVICE(0x0461, 0x0300) }, 0 }, /* G2-200 */
156 {{ USB_DEVICE(0x0461, 0x0301) }, 0 }, /* G2E-300 */
157 {{ USB_DEVICE(0x0461, 0x0302) }, 0 }, /* G2-300 */
158 {{ USB_DEVICE(0x0461, 0x0303) }, 0 }, /* G2E-300 */
159 {{ USB_DEVICE(0x0461, 0x0340) }, 0 }, /* Colorado USB 9600 */
160 {{ USB_DEVICE(0x0461, 0x0341) }, 0 }, /* Colorado 600u */
161 {{ USB_DEVICE(0x0461, 0x0345) }, 0 }, /* Visioneer 6200 */
162 {{ USB_DEVICE(0x0461, 0x0360) }, 0 }, /* Colorado USB 19200 */
163 {{ USB_DEVICE(0x0461, 0x0361) }, 0 }, /* Colorado 1200u */
164 {{ USB_DEVICE(0x0461, 0x0380) }, 0 }, /* G2-600 */
165 {{ USB_DEVICE(0x0461, 0x0381) }, 0 }, /* ReadyScan 636i */
166 {{ USB_DEVICE(0x0461, 0x0382) }, 0 }, /* G2-600 */
167 {{ USB_DEVICE(0x0461, 0x0383) }, 0 }, /* G2E-600 */
169 {{ USB_DEVICE(0x04b8, 0x0101) }, 0 }, /* Perfection 636U/636Photo */
170 {{ USB_DEVICE(0x04b8, 0x0103) }, 0 }, /* Perfection 610 */
171 {{ USB_DEVICE(0x04b8, 0x0104) }, 0 }, /* Perfection 1200U/1200Photo */
172 {{ USB_DEVICE(0x04b8, 0x010b) }, 0 }, /* Perfection 1240U/1240Photo */
173 {{ USB_DEVICE(0x04b8, 0x010f) }, 0 }, /* Perfection 1250U/1250Photo */
174 {{ USB_DEVICE(0x04b8, 0x0107) }, 0 }, /* Expression 1600 */
175 {{ USB_DEVICE(0x04b8, 0x010a) }, 0 }, /* Perfection 1640SU */
176 {{ USB_DEVICE(0x04b8, 0x010c) }, 0 }, /* Perfection 640U */
177 {{ USB_DEVICE(0x04b8, 0x0110) }, 0 }, /* Perfection 1650 */
178 {{ USB_DEVICE(0x04b8, 0x011e) }, 0 }, /* Perfection 1660 */
179 {{ USB_DEVICE(0x04b8, 0x011d) }, 0 }, /* Perfection 1260 */
180 {{ USB_DEVICE(0x04b8, 0x0112) }, USC_KEEP_OPEN }, /* GT-9700F */
181 {{ USB_DEVICE(0x04b8, 0x011b) }, 0 }, /* GT-9300UF */
183 {{ USB_DEVICE(0x1606, 0x0010) }, 0 }, /* Astra 1220U */
184 {{ USB_DEVICE(0x1606, 0x0002) }, 0 }, /* Astra 1236U */
185 {{ USB_DEVICE(0x1606, 0x0030) }, 0 }, /* Astra 2000U */
186 {{ USB_DEVICE(0x1606, 0x0130) }, 0 }, /* Astra 2100U */
187 {{ USB_DEVICE(0x1606, 0x0230) }, 0 }, /* Astra 2200U */
188 {{ USB_DEVICE(0x1606, 0x0060) }, 0 }, /* Astra 3400 */
190 {{ USB_DEVICE(0x04a7, 0x0224) }, 0 }, /* Scanport 3000 */
191 {{ USB_DEVICE(0x04a7, 0x0221) }, 0 }, /* OneTouch 5300 */
192 {{ USB_DEVICE(0x04a7, 0x0211) }, 0 }, /* OneTouch 7600 */
193 {{ USB_DEVICE(0x04a7, 0x0231) }, 0 }, /* OneTouch 6100 */
194 {{ USB_DEVICE(0x04a7, 0x0311) }, 0 }, /* OneTouch 6200 */
195 {{ USB_DEVICE(0x04a7, 0x0321) }, 0 }, /* OneTouch 8100 */
196 {{ USB_DEVICE(0x04a7, 0x0331) }, 0 }, /* OneTouch 8600 */
198 {{ USB_DEVICE(0x05d8, 0x4002) }, 0 }, /* 1200 UB Plus */
200 #define uscanner_lookup(v, p) ((const struct uscan_info *)usb_lookup(uscanner_devs, v, p))
202 #define USCANNER_BUFFERSIZE 1024
204 struct uscanner_softc {
205 device_t sc_dev; /* base device */
206 usbd_device_handle sc_udev;
207 usbd_interface_handle sc_iface;
211 usbd_pipe_handle sc_bulkin_pipe;
213 usbd_xfer_handle sc_bulkin_xfer;
214 void *sc_bulkin_buffer;
215 int sc_bulkin_bufferlen;
216 int sc_bulkin_datalen;
218 usbd_pipe_handle sc_bulkout_pipe;
220 usbd_xfer_handle sc_bulkout_xfer;
221 void *sc_bulkout_buffer;
222 int sc_bulkout_bufferlen;
223 int sc_bulkout_datalen;
226 #define USCANNER_OPEN 0x01 /* opened */
232 d_open_t uscanneropen;
233 d_close_t uscannerclose;
234 d_read_t uscannerread;
235 d_write_t uscannerwrite;
236 d_poll_t uscannerpoll;
238 #define USCANNER_CDEV_MAJOR 156
240 static struct dev_ops uscanner_ops = {
241 { "uscanner", USCANNER_CDEV_MAJOR, 0 },
242 .d_open = uscanneropen,
243 .d_close = uscannerclose,
244 .d_read = uscannerread,
245 .d_write = uscannerwrite,
246 .d_poll = uscannerpoll,
249 static int uscanner_do_read(struct uscanner_softc *, struct uio *, int);
250 static int uscanner_do_write(struct uscanner_softc *, struct uio *, int);
251 static void uscanner_do_close(struct uscanner_softc *);
253 #define USCANNERUNIT(n) (minor(n))
255 static device_probe_t uscanner_match;
256 static device_attach_t uscanner_attach;
257 static device_detach_t uscanner_detach;
259 static devclass_t uscanner_devclass;
261 static kobj_method_t uscanner_methods[] = {
262 DEVMETHOD(device_probe, uscanner_match),
263 DEVMETHOD(device_attach, uscanner_attach),
264 DEVMETHOD(device_detach, uscanner_detach),
268 static driver_t uscanner_driver = {
271 sizeof(struct uscanner_softc)
274 MODULE_DEPEND(uscanner, usb, 1, 1, 1);
277 uscanner_match(device_t self)
279 struct usb_attach_arg *uaa = device_get_ivars(self);
281 if (uaa->iface != NULL)
284 return (uscanner_lookup(uaa->vendor, uaa->product) != NULL ?
285 UMATCH_VENDOR_PRODUCT : UMATCH_NONE);
289 uscanner_attach(device_t self)
291 struct uscanner_softc *sc = device_get_softc(self);
292 struct usb_attach_arg *uaa = device_get_ivars(self);
293 usb_interface_descriptor_t *id = 0;
294 usb_endpoint_descriptor_t *ed, *ed_bulkin = NULL, *ed_bulkout = NULL;
300 sc->sc_dev_flags = uscanner_lookup(uaa->vendor, uaa->product)->flags;
302 sc->sc_udev = uaa->device;
304 err = usbd_set_config_no(uaa->device, 1, 1); /* XXX */
306 kprintf("%s: setting config no failed\n",
307 device_get_nameunit(sc->sc_dev));
311 /* XXX We only check the first interface */
312 err = usbd_device2interface_handle(sc->sc_udev, 0, &sc->sc_iface);
313 if (!err && sc->sc_iface)
314 id = usbd_get_interface_descriptor(sc->sc_iface);
315 if (err || id == 0) {
316 kprintf("%s: could not get interface descriptor, err=%d,id=%p\n",
317 device_get_nameunit(sc->sc_dev), err, id);
321 /* Find the two first bulk endpoints */
322 for (i = 0 ; i < id->bNumEndpoints; i++) {
323 ed = usbd_interface2endpoint_descriptor(sc->sc_iface, i);
325 kprintf("%s: could not read endpoint descriptor\n",
326 device_get_nameunit(sc->sc_dev));
330 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN
331 && (ed->bmAttributes & UE_XFERTYPE) == UE_BULK) {
333 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT
334 && (ed->bmAttributes & UE_XFERTYPE) == UE_BULK) {
338 if (ed_bulkin && ed_bulkout) /* found all we need */
342 /* Verify that we goething sensible */
343 if (ed_bulkin == NULL || ed_bulkout == NULL) {
344 kprintf("%s: bulk-in and/or bulk-out endpoint not found\n",
345 device_get_nameunit(sc->sc_dev));
349 sc->sc_bulkin = ed_bulkin->bEndpointAddress;
350 sc->sc_bulkout = ed_bulkout->bEndpointAddress;
352 /* the main device, ctrl endpoint */
353 dev_ops_add(&uscanner_ops, -1, device_get_unit(sc->sc_dev));
354 make_dev(&uscanner_ops, device_get_unit(sc->sc_dev),
355 UID_ROOT, GID_OPERATOR, 0644, "%s", device_get_nameunit(sc->sc_dev));
357 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev,
364 uscanneropen(struct dev_open_args *ap)
366 cdev_t dev = ap->a_head.a_dev;
367 struct uscanner_softc *sc;
368 int unit = USCANNERUNIT(dev);
371 sc = devclass_get_softc(uscanner_devclass, unit);
375 DPRINTFN(5, ("uscanneropen: flag=%d, mode=%d, unit=%d\n",
376 ap->a_oflags, ap->a_devtype, unit));
381 if (sc->sc_state & USCANNER_OPEN)
384 sc->sc_state |= USCANNER_OPEN;
386 sc->sc_bulkin_buffer = kmalloc(USCANNER_BUFFERSIZE, M_USBDEV, M_WAITOK);
387 sc->sc_bulkout_buffer = kmalloc(USCANNER_BUFFERSIZE, M_USBDEV, M_WAITOK);
388 /* No need to check buffers for NULL since we have WAITOK */
390 sc->sc_bulkin_bufferlen = USCANNER_BUFFERSIZE;
391 sc->sc_bulkout_bufferlen = USCANNER_BUFFERSIZE;
393 /* We have decided on which endpoints to use, now open the pipes */
394 if (sc->sc_bulkin_pipe == NULL) {
395 err = usbd_open_pipe(sc->sc_iface, sc->sc_bulkin,
396 USBD_EXCLUSIVE_USE, &sc->sc_bulkin_pipe);
398 kprintf("%s: cannot open bulk-in pipe (addr %d)\n",
399 device_get_nameunit(sc->sc_dev), sc->sc_bulkin);
400 uscanner_do_close(sc);
404 if (sc->sc_bulkout_pipe == NULL) {
405 err = usbd_open_pipe(sc->sc_iface, sc->sc_bulkout,
406 USBD_EXCLUSIVE_USE, &sc->sc_bulkout_pipe);
408 kprintf("%s: cannot open bulk-out pipe (addr %d)\n",
409 device_get_nameunit(sc->sc_dev), sc->sc_bulkout);
410 uscanner_do_close(sc);
415 sc->sc_bulkin_xfer = usbd_alloc_xfer(sc->sc_udev);
416 if (sc->sc_bulkin_xfer == NULL) {
417 uscanner_do_close(sc);
420 sc->sc_bulkout_xfer = usbd_alloc_xfer(sc->sc_udev);
421 if (sc->sc_bulkout_xfer == NULL) {
422 uscanner_do_close(sc);
426 return (0); /* success */
430 uscannerclose(struct dev_close_args *ap)
432 cdev_t dev = ap->a_head.a_dev;
433 struct uscanner_softc *sc;
435 sc = devclass_get_softc(uscanner_devclass, USCANNERUNIT(dev));
437 DPRINTFN(5, ("uscannerclose: flag=%d, mode=%d, unit=%d\n",
438 ap->a_fflag, ap->a_devtype, USCANNERUNIT(dev)));
441 if (!(sc->sc_state & USCANNER_OPEN)) {
442 kprintf("uscannerclose: not open\n");
447 uscanner_do_close(sc);
453 uscanner_do_close(struct uscanner_softc *sc)
455 if (sc->sc_bulkin_xfer) {
456 usbd_free_xfer(sc->sc_bulkin_xfer);
457 sc->sc_bulkin_xfer = NULL;
459 if (sc->sc_bulkout_xfer) {
460 usbd_free_xfer(sc->sc_bulkout_xfer);
461 sc->sc_bulkout_xfer = NULL;
464 if (!(sc->sc_dev_flags & USC_KEEP_OPEN)) {
465 if (sc->sc_bulkin_pipe != NULL) {
466 usbd_abort_pipe(sc->sc_bulkin_pipe);
467 usbd_close_pipe(sc->sc_bulkin_pipe);
468 sc->sc_bulkin_pipe = NULL;
470 if (sc->sc_bulkout_pipe != NULL) {
471 usbd_abort_pipe(sc->sc_bulkout_pipe);
472 usbd_close_pipe(sc->sc_bulkout_pipe);
473 sc->sc_bulkout_pipe = NULL;
477 if (sc->sc_bulkin_buffer) {
478 kfree(sc->sc_bulkin_buffer, M_USBDEV);
479 sc->sc_bulkin_buffer = NULL;
481 if (sc->sc_bulkout_buffer) {
482 kfree(sc->sc_bulkout_buffer, M_USBDEV);
483 sc->sc_bulkout_buffer = NULL;
486 sc->sc_state &= ~USCANNER_OPEN;
490 uscanner_do_read(struct uscanner_softc *sc, struct uio *uio, int flag)
496 DPRINTFN(5, ("%s: uscannerread\n", device_get_nameunit(sc->sc_dev)));
501 while ((n = min(sc->sc_bulkin_bufferlen, uio->uio_resid)) != 0) {
502 DPRINTFN(1, ("uscannerread: start transfer %d bytes\n",n));
505 err = usbd_bulk_transfer(
506 sc->sc_bulkin_xfer, sc->sc_bulkin_pipe,
507 USBD_SHORT_XFER_OK, USBD_NO_TIMEOUT,
508 sc->sc_bulkin_buffer, &tn,
511 if (err == USBD_INTERRUPTED)
513 else if (err == USBD_TIMEOUT)
519 DPRINTFN(1, ("uscannerread: got %d bytes\n", tn));
520 error = uiomove(sc->sc_bulkin_buffer, tn, uio);
529 uscannerread(struct dev_read_args *ap)
531 cdev_t dev = ap->a_head.a_dev;
532 struct uscanner_softc *sc;
535 sc = devclass_get_softc(uscanner_devclass, USCANNERUNIT(dev));
538 error = uscanner_do_read(sc, ap->a_uio, ap->a_ioflag);
539 if (--sc->sc_refcnt < 0)
540 usb_detach_wakeup(sc->sc_dev);
546 uscanner_do_write(struct uscanner_softc *sc, struct uio *uio, int flag)
552 DPRINTFN(5, ("%s: uscanner_do_write\n", device_get_nameunit(sc->sc_dev)));
557 while ((n = min(sc->sc_bulkout_bufferlen, uio->uio_resid)) != 0) {
558 error = uiomove(sc->sc_bulkout_buffer, n, uio);
561 DPRINTFN(1, ("uscanner_do_write: transfer %d bytes\n", n));
562 err = usbd_bulk_transfer(
563 sc->sc_bulkout_xfer, sc->sc_bulkout_pipe,
565 sc->sc_bulkout_buffer, &n,
568 if (err == USBD_INTERRUPTED)
580 uscannerwrite(struct dev_write_args *ap)
582 cdev_t dev = ap->a_head.a_dev;
583 struct uscanner_softc *sc;
586 sc = devclass_get_softc(uscanner_devclass, USCANNERUNIT(dev));
589 error = uscanner_do_write(sc, ap->a_uio, ap->a_ioflag);
590 if (--sc->sc_refcnt < 0)
591 usb_detach_wakeup(sc->sc_dev);
596 uscanner_detach(device_t self)
598 struct uscanner_softc *sc = device_get_softc(self);
600 DPRINTF(("uscanner_detach: sc=%p\n", sc));
603 sc->sc_dev_flags = 0; /* make close really close device */
605 /* Abort all pipes. Causes processes waiting for transfer to wake. */
606 if (sc->sc_bulkin_pipe != NULL)
607 usbd_abort_pipe(sc->sc_bulkin_pipe);
608 if (sc->sc_bulkout_pipe != NULL)
609 usbd_abort_pipe(sc->sc_bulkout_pipe);
612 if (--sc->sc_refcnt >= 0) {
613 /* Wait for processes to go away. */
614 usb_detach_wait(sc->sc_dev);
618 /* destroy the device for the control endpoint */
619 dev_ops_remove(&uscanner_ops, -1, device_get_unit(sc->sc_dev));
621 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev,
628 uscannerpoll(struct dev_poll_args *ap)
630 cdev_t dev = ap->a_head.a_dev;
631 struct uscanner_softc *sc;
634 sc = devclass_get_softc(uscanner_devclass, USCANNERUNIT(dev));
640 * We have no easy way of determining if a read will
641 * yield any data or a write will happen.
644 revents |= ap->a_events &
645 (POLLIN | POLLRDNORM | POLLOUT | POLLWRNORM);
647 ap->a_events = revents;
651 DRIVER_MODULE(uscanner, uhub, uscanner_driver, uscanner_devclass, usbd_driver_load, 0);