/* $NetBSD: uscanner.c,v 1.84 2019/05/05 03:17:54 mrg Exp $ */ /* * Copyright (c) 2000 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Lennart Augustsson (lennart@augustsson.net) at * Carlstedt Research & Technology * and Nick Hibma (n_hibma@qubesoft.com). * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #include __KERNEL_RCSID(0, "$NetBSD: uscanner.c,v 1.84 2019/05/05 03:17:54 mrg Exp $"); #ifdef _KERNEL_OPT #include "opt_usb.h" #endif #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "ioconf.h" #ifdef USCANNER_DEBUG #define DPRINTF(x) if (uscannerdebug) printf x #define DPRINTFN(n,x) if (uscannerdebug>(n)) printf x int uscannerdebug = 0; #else #define DPRINTF(x) #define DPRINTFN(n,x) #endif struct uscan_info { struct usb_devno devno; u_int flags; #define USC_KEEP_OPEN 1 }; /* Table of scanners that may work with this driver. */ static const struct uscan_info uscanner_devs[] = { /* Acer Peripherals */ {{ USB_VENDOR_ACERP, USB_PRODUCT_ACERP_ACERSCAN_320U }, 0 }, {{ USB_VENDOR_ACERP, USB_PRODUCT_ACERP_ACERSCAN_640U }, 0 }, {{ USB_VENDOR_ACERP, USB_PRODUCT_ACERP_ACERSCAN_620U }, 0 }, {{ USB_VENDOR_ACERP, USB_PRODUCT_ACERP_ACERSCAN_C310U }, 0 }, /* AGFA */ {{ USB_VENDOR_AGFA, USB_PRODUCT_AGFA_SNAPSCAN1236U }, 0 }, {{ USB_VENDOR_AGFA, USB_PRODUCT_AGFA_SNAPSCAN1212U }, 0 }, {{ USB_VENDOR_AGFA, USB_PRODUCT_AGFA_SNAPSCAN1212U2 }, 0 }, {{ USB_VENDOR_AGFA, USB_PRODUCT_AGFA_SNAPSCANTOUCH }, 0 }, {{ USB_VENDOR_AGFA, USB_PRODUCT_AGFA_SNAPSCANE40 }, 0 }, {{ USB_VENDOR_AGFA, USB_PRODUCT_AGFA_SNAPSCANE50 }, 0 }, {{ USB_VENDOR_AGFA, USB_PRODUCT_AGFA_SNAPSCANE20 }, 0 }, {{ USB_VENDOR_AGFA, USB_PRODUCT_AGFA_SNAPSCANE25 }, 0 }, {{ USB_VENDOR_AGFA, USB_PRODUCT_AGFA_SNAPSCANE26 }, 0 }, {{ USB_VENDOR_AGFA, USB_PRODUCT_AGFA_SNAPSCANE52 }, 0 }, /* Avision */ {{ USB_VENDOR_AVISION, USB_PRODUCT_AVISION_1200U }, 0 }, /* Canon */ {{ USB_VENDOR_CANON, USB_PRODUCT_CANON_N656U }, 0 }, {{ USB_VENDOR_CANON, USB_PRODUCT_CANON_N670U }, 0 }, {{ USB_VENDOR_CANON, USB_PRODUCT_CANON_N1220U }, 0 }, {{ USB_VENDOR_CANON, USB_PRODUCT_CANON_N1240U }, 0 }, /* Kye */ {{ USB_VENDOR_KYE, USB_PRODUCT_KYE_VIVIDPRO }, 0 }, /* HP */ {{ USB_VENDOR_HP, USB_PRODUCT_HP_2200C }, 0 }, {{ USB_VENDOR_HP, USB_PRODUCT_HP_3300C }, 0 }, {{ USB_VENDOR_HP, USB_PRODUCT_HP_3400CSE }, 0 }, {{ USB_VENDOR_HP, USB_PRODUCT_HP_4100C }, 0 }, {{ USB_VENDOR_HP, USB_PRODUCT_HP_4200C }, 0 }, {{ USB_VENDOR_HP, USB_PRODUCT_HP_4300C }, 0 }, {{ USB_VENDOR_HP, USB_PRODUCT_HP_S20 }, 0 }, {{ USB_VENDOR_HP, USB_PRODUCT_HP_5200C }, 0 }, #if 0 /* Handled by usscanner */ {{ USB_VENDOR_HP, USB_PRODUCT_HP_5300C }, 0 }, #endif {{ USB_VENDOR_HP, USB_PRODUCT_HP_6200C }, 0 }, {{ USB_VENDOR_HP, USB_PRODUCT_HP_6300C }, 0 }, #if 0 /* XXX Should be handled by usscanner */ /* Microtek */ {{ USB_VENDOR_SCANLOGIC, USB_PRODUCT_SCANLOGIC_336CX }, 0 }, {{ USB_VENDOR_MICROTEK, USB_PRODUCT_MICROTEK_X6U }, 0 }, {{ USB_VENDOR_MICROTEK, USB_PRODUCT_MICROTEK_336CX }, 0 }, {{ USB_VENDOR_MICROTEK, USB_PRODUCT_MICROTEK_336CX2 }, 0 }, {{ USB_VENDOR_MICROTEK, USB_PRODUCT_MICROTEK_C6 }, 0 }, {{ USB_VENDOR_MICROTEK, USB_PRODUCT_MICROTEK_V6USL }, 0 }, {{ USB_VENDOR_MICROTEK, USB_PRODUCT_MICROTEK_V6USL2 }, 0 }, {{ USB_VENDOR_MICROTEK, USB_PRODUCT_MICROTEK_V6UL }, 0 }, #endif /* Minolta */ {{ USB_VENDOR_MINOLTA, USB_PRODUCT_MINOLTA_5400 }, 0 }, /* Mustek */ {{ USB_VENDOR_MUSTEK, USB_PRODUCT_MUSTEK_1200CU }, 0 }, {{ USB_VENDOR_MUSTEK, USB_PRODUCT_MUSTEK_BEARPAW1200F }, 0 }, {{ USB_VENDOR_MUSTEK, USB_PRODUCT_MUSTEK_BEARPAW1200TA }, 0 }, {{ USB_VENDOR_MUSTEK, USB_PRODUCT_MUSTEK_600USB }, 0 }, {{ USB_VENDOR_MUSTEK, USB_PRODUCT_MUSTEK_600CU }, 0 }, {{ USB_VENDOR_MUSTEK, USB_PRODUCT_MUSTEK_1200USB }, 0 }, {{ USB_VENDOR_MUSTEK, USB_PRODUCT_MUSTEK_1200UB }, 0 }, {{ USB_VENDOR_MUSTEK, USB_PRODUCT_MUSTEK_1200USBPLUS }, 0 }, {{ USB_VENDOR_MUSTEK, USB_PRODUCT_MUSTEK_1200CUPLUS }, 0 }, /* National */ {{ USB_VENDOR_NATIONAL, USB_PRODUCT_NATIONAL_BEARPAW1200 }, 0 }, {{ USB_VENDOR_NATIONAL, USB_PRODUCT_NATIONAL_BEARPAW2400 }, 0 }, /* Primax */ {{ USB_VENDOR_PRIMAX, USB_PRODUCT_PRIMAX_G2X300 }, 0 }, {{ USB_VENDOR_PRIMAX, USB_PRODUCT_PRIMAX_G2E300 }, 0 }, {{ USB_VENDOR_PRIMAX, USB_PRODUCT_PRIMAX_G2300 }, 0 }, {{ USB_VENDOR_PRIMAX, USB_PRODUCT_PRIMAX_G2E3002 }, 0 }, {{ USB_VENDOR_PRIMAX, USB_PRODUCT_PRIMAX_9600 }, 0 }, {{ USB_VENDOR_PRIMAX, USB_PRODUCT_PRIMAX_600U }, 0 }, {{ USB_VENDOR_PRIMAX, USB_PRODUCT_PRIMAX_6200 }, 0 }, {{ USB_VENDOR_PRIMAX, USB_PRODUCT_PRIMAX_19200 }, 0 }, {{ USB_VENDOR_PRIMAX, USB_PRODUCT_PRIMAX_1200U }, 0 }, {{ USB_VENDOR_PRIMAX, USB_PRODUCT_PRIMAX_G600 }, 0 }, {{ USB_VENDOR_PRIMAX, USB_PRODUCT_PRIMAX_636I }, 0 }, {{ USB_VENDOR_PRIMAX, USB_PRODUCT_PRIMAX_G2600 }, 0 }, {{ USB_VENDOR_PRIMAX, USB_PRODUCT_PRIMAX_G2E600 }, 0 }, /* Epson */ {{ USB_VENDOR_EPSON, USB_PRODUCT_EPSON_636 }, 0 }, {{ USB_VENDOR_EPSON, USB_PRODUCT_EPSON_610 }, 0 }, {{ USB_VENDOR_EPSON, USB_PRODUCT_EPSON_1200 }, 0 }, {{ USB_VENDOR_EPSON, USB_PRODUCT_EPSON_1240 }, 0 }, {{ USB_VENDOR_EPSON, USB_PRODUCT_EPSON_1250 }, 0 }, {{ USB_VENDOR_EPSON, USB_PRODUCT_EPSON_1260 }, 0 }, {{ USB_VENDOR_EPSON, USB_PRODUCT_EPSON_1600 }, 0 }, {{ USB_VENDOR_EPSON, USB_PRODUCT_EPSON_1640 }, 0 }, {{ USB_VENDOR_EPSON, USB_PRODUCT_EPSON_1660 }, 0 }, {{ USB_VENDOR_EPSON, USB_PRODUCT_EPSON_1670 }, 0 }, {{ USB_VENDOR_EPSON, USB_PRODUCT_EPSON_640U }, 0 }, {{ USB_VENDOR_EPSON, USB_PRODUCT_EPSON_1650 }, 0 }, {{ USB_VENDOR_EPSON, USB_PRODUCT_EPSON_2400 }, 0 }, {{ USB_VENDOR_EPSON, USB_PRODUCT_EPSON_GT9700F }, USC_KEEP_OPEN }, /* UMAX */ {{ USB_VENDOR_UMAX, USB_PRODUCT_UMAX_ASTRA1220U }, 0 }, {{ USB_VENDOR_UMAX, USB_PRODUCT_UMAX_ASTRA1236U }, 0 }, {{ USB_VENDOR_UMAX, USB_PRODUCT_UMAX_ASTRA2000U }, 0 }, {{ USB_VENDOR_UMAX, USB_PRODUCT_UMAX_ASTRA2100U }, 0 }, {{ USB_VENDOR_UMAX, USB_PRODUCT_UMAX_ASTRA2200U }, 0 }, {{ USB_VENDOR_UMAX, USB_PRODUCT_UMAX_ASTRA3400 }, 0 }, /* Visioneer */ {{ USB_VENDOR_VISIONEER, USB_PRODUCT_VISIONEER_3000 }, 0 }, {{ USB_VENDOR_VISIONEER, USB_PRODUCT_VISIONEER_5300 }, 0 }, {{ USB_VENDOR_VISIONEER, USB_PRODUCT_VISIONEER_7600 }, 0 }, {{ USB_VENDOR_VISIONEER, USB_PRODUCT_VISIONEER_6100 }, 0 }, {{ USB_VENDOR_VISIONEER, USB_PRODUCT_VISIONEER_6200 }, 0 }, {{ USB_VENDOR_VISIONEER, USB_PRODUCT_VISIONEER_8100 }, 0 }, {{ USB_VENDOR_VISIONEER, USB_PRODUCT_VISIONEER_8600 }, 0 }, /* Ultima */ {{ USB_VENDOR_ULTIMA, USB_PRODUCT_ULTIMA_1200UBPLUS }, 0 }, }; #define uscanner_lookup(v, p) ((const struct uscan_info *)usb_lookup(uscanner_devs, v, p)) #define USCANNER_BUFFERSIZE 1024 struct uscanner_softc { device_t sc_dev; /* base device */ struct usbd_device *sc_udev; struct usbd_interface *sc_iface; u_int sc_dev_flags; struct usbd_pipe *sc_bulkin_pipe; int sc_bulkin; struct usbd_xfer *sc_bulkin_xfer; void *sc_bulkin_buffer; int sc_bulkin_bufferlen; int sc_bulkin_datalen; struct usbd_pipe *sc_bulkout_pipe; int sc_bulkout; struct usbd_xfer *sc_bulkout_xfer; void *sc_bulkout_buffer; int sc_bulkout_bufferlen; int sc_bulkout_datalen; struct selinfo sc_selq; u_char sc_state; #define USCANNER_OPEN 0x01 /* opened */ int sc_refcnt; u_char sc_dying; }; dev_type_open(uscanneropen); dev_type_close(uscannerclose); dev_type_read(uscannerread); dev_type_write(uscannerwrite); dev_type_ioctl(uscannerioctl); dev_type_poll(uscannerpoll); dev_type_kqfilter(uscannerkqfilter); const struct cdevsw uscanner_cdevsw = { .d_open = uscanneropen, .d_close = uscannerclose, .d_read = uscannerread, .d_write = uscannerwrite, .d_ioctl = uscannerioctl, .d_stop = nostop, .d_tty = notty, .d_poll = uscannerpoll, .d_mmap = nommap, .d_kqfilter = uscannerkqfilter, .d_discard = nodiscard, .d_flag = D_OTHER }; Static int uscanner_do_read(struct uscanner_softc *, struct uio *, int); Static int uscanner_do_write(struct uscanner_softc *, struct uio *, int); Static void uscanner_do_close(struct uscanner_softc *); #define USCANNERUNIT(n) (minor(n)) int uscanner_match(device_t, cfdata_t, void *); void uscanner_attach(device_t, device_t, void *); int uscanner_detach(device_t, int); int uscanner_activate(device_t, enum devact); CFATTACH_DECL_NEW(uscanner, sizeof(struct uscanner_softc), uscanner_match, uscanner_attach, uscanner_detach, uscanner_activate); int uscanner_match(device_t parent, cfdata_t match, void *aux) { struct usb_attach_arg *uaa = aux; return uscanner_lookup(uaa->uaa_vendor, uaa->uaa_product) != NULL ? UMATCH_VENDOR_PRODUCT : UMATCH_NONE; } void uscanner_attach(device_t parent, device_t self, void *aux) { struct uscanner_softc *sc = device_private(self); struct usb_attach_arg *uaa = aux; usb_interface_descriptor_t *id = 0; usb_endpoint_descriptor_t *ed, *ed_bulkin = NULL, *ed_bulkout = NULL; char *devinfop; int i; usbd_status err; sc->sc_dev = self; aprint_naive("\n"); aprint_normal("\n"); devinfop = usbd_devinfo_alloc(uaa->uaa_device, 0); aprint_normal_dev(self, "%s\n", devinfop); usbd_devinfo_free(devinfop); sc->sc_dev_flags = uscanner_lookup(uaa->uaa_vendor, uaa->uaa_product)->flags; sc->sc_udev = uaa->uaa_device; err = usbd_set_config_no(uaa->uaa_device, 1, 1); /* XXX */ if (err) { aprint_error_dev(self, "failed to set configuration, err=%s\n", usbd_errstr(err)); sc->sc_dying = 1; return; } /* XXX We only check the first interface */ err = usbd_device2interface_handle(sc->sc_udev, 0, &sc->sc_iface); if (!err && sc->sc_iface) id = usbd_get_interface_descriptor(sc->sc_iface); if (err || id == 0) { aprint_error_dev(self, "could not get interface descriptor, err=%d,id=%p\n", err, id); sc->sc_dying = 1; return; } /* Find the two first bulk endpoints */ for (i = 0 ; i < id->bNumEndpoints; i++) { ed = usbd_interface2endpoint_descriptor(sc->sc_iface, i); if (ed == 0) { aprint_error_dev(self, "could not read endpoint descriptor\n"); sc->sc_dying = 1; return; } if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && (ed->bmAttributes & UE_XFERTYPE) == UE_BULK) { ed_bulkin = ed; } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && (ed->bmAttributes & UE_XFERTYPE) == UE_BULK) { ed_bulkout = ed; } if (ed_bulkin && ed_bulkout) /* found all we need */ break; } /* Verify that we got something sensible */ if (ed_bulkin == NULL || ed_bulkout == NULL) { aprint_error_dev(self, "bulk-in and/or bulk-out endpoint not found\n"); sc->sc_dying = 1; return; } sc->sc_bulkin = ed_bulkin->bEndpointAddress; sc->sc_bulkout = ed_bulkout->bEndpointAddress; selinit(&sc->sc_selq); usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, sc->sc_dev); return; } int uscanneropen(dev_t dev, int flag, int mode, struct lwp *l) { struct uscanner_softc *sc; int unit = USCANNERUNIT(dev); usbd_status err; sc = device_lookup_private(&uscanner_cd, unit); if (sc == NULL) return ENXIO; DPRINTFN(5, ("uscanneropen: flag=%d, mode=%d, unit=%d\n", flag, mode, unit)); if (sc->sc_dying) return ENXIO; if (sc->sc_state & USCANNER_OPEN) return EBUSY; sc->sc_state |= USCANNER_OPEN; sc->sc_bulkin_bufferlen = USCANNER_BUFFERSIZE; sc->sc_bulkout_bufferlen = USCANNER_BUFFERSIZE; /* We have decided on which endpoints to use, now open the pipes */ if (sc->sc_bulkin_pipe == NULL) { err = usbd_open_pipe(sc->sc_iface, sc->sc_bulkin, USBD_EXCLUSIVE_USE, &sc->sc_bulkin_pipe); if (err) { printf("%s: cannot open bulk-in pipe (addr %d)\n", device_xname(sc->sc_dev), sc->sc_bulkin); uscanner_do_close(sc); return EIO; } } if (sc->sc_bulkout_pipe == NULL) { err = usbd_open_pipe(sc->sc_iface, sc->sc_bulkout, USBD_EXCLUSIVE_USE, &sc->sc_bulkout_pipe); if (err) { printf("%s: cannot open bulk-out pipe (addr %d)\n", device_xname(sc->sc_dev), sc->sc_bulkout); uscanner_do_close(sc); return EIO; } } int error = usbd_create_xfer(sc->sc_bulkin_pipe, USCANNER_BUFFERSIZE, 0, 0, &sc->sc_bulkin_xfer); if (error) { uscanner_do_close(sc); return error; } sc->sc_bulkin_buffer = usbd_get_buffer(sc->sc_bulkin_xfer); error = usbd_create_xfer(sc->sc_bulkout_pipe, USCANNER_BUFFERSIZE, 0, 0, &sc->sc_bulkout_xfer); if (error) { uscanner_do_close(sc); return error; } sc->sc_bulkout_buffer = usbd_get_buffer(sc->sc_bulkout_xfer); return 0; /* success */ } int uscannerclose(dev_t dev, int flag, int mode, struct lwp *l) { struct uscanner_softc *sc; sc = device_lookup_private(&uscanner_cd, USCANNERUNIT(dev)); DPRINTFN(5, ("uscannerclose: flag=%d, mode=%d, unit=%"PRId32"\n", flag, mode, USCANNERUNIT(dev))); #ifdef DIAGNOSTIC if (!(sc->sc_state & USCANNER_OPEN)) { printf("uscannerclose: not open\n"); return EINVAL; } #endif uscanner_do_close(sc); return 0; } void uscanner_do_close(struct uscanner_softc *sc) { if (!(sc->sc_dev_flags & USC_KEEP_OPEN)) { if (sc->sc_bulkin_pipe != NULL) { usbd_abort_pipe(sc->sc_bulkin_pipe); } if (sc->sc_bulkout_pipe != NULL) { usbd_abort_pipe(sc->sc_bulkout_pipe); } if (sc->sc_bulkin_xfer) { usbd_destroy_xfer(sc->sc_bulkin_xfer); sc->sc_bulkin_xfer = NULL; } if (sc->sc_bulkout_xfer) { usbd_destroy_xfer(sc->sc_bulkout_xfer); sc->sc_bulkout_xfer = NULL; } if (sc->sc_bulkin_pipe != NULL) { usbd_close_pipe(sc->sc_bulkin_pipe); sc->sc_bulkin_pipe = NULL; } if (sc->sc_bulkout_pipe != NULL) { usbd_close_pipe(sc->sc_bulkout_pipe); sc->sc_bulkout_pipe = NULL; } } if (sc->sc_bulkin_buffer) { kmem_free(sc->sc_bulkin_buffer, sc->sc_bulkin_bufferlen); sc->sc_bulkin_buffer = NULL; } if (sc->sc_bulkout_buffer) { kmem_free(sc->sc_bulkout_buffer, sc->sc_bulkin_bufferlen); sc->sc_bulkout_buffer = NULL; } sc->sc_state &= ~USCANNER_OPEN; } Static int uscanner_do_read(struct uscanner_softc *sc, struct uio *uio, int flag) { uint32_t n, tn; usbd_status err; int error = 0; DPRINTFN(5, ("%s: uscannerread\n", device_xname(sc->sc_dev))); if (sc->sc_dying) return EIO; while ((n = uimin(sc->sc_bulkin_bufferlen, uio->uio_resid)) != 0) { DPRINTFN(1, ("uscannerread: start transfer %d bytes\n",n)); tn = n; err = usbd_bulk_transfer(sc->sc_bulkin_xfer, sc->sc_bulkin_pipe, USBD_SHORT_XFER_OK, USBD_NO_TIMEOUT, sc->sc_bulkin_buffer, &tn); if (err) { if (err == USBD_INTERRUPTED) error = EINTR; else if (err == USBD_TIMEOUT) error = ETIMEDOUT; else error = EIO; break; } DPRINTFN(1, ("uscannerread: got %d bytes\n", tn)); error = uiomove(sc->sc_bulkin_buffer, tn, uio); if (error || tn < n) break; } return error; } int uscannerread(dev_t dev, struct uio *uio, int flag) { struct uscanner_softc *sc; int error; sc = device_lookup_private(&uscanner_cd, USCANNERUNIT(dev)); sc->sc_refcnt++; error = uscanner_do_read(sc, uio, flag); if (--sc->sc_refcnt < 0) usb_detach_wakeupold(sc->sc_dev); return error; } Static int uscanner_do_write(struct uscanner_softc *sc, struct uio *uio, int flag) { uint32_t n; int error = 0; usbd_status err; DPRINTFN(5, ("%s: uscanner_do_write\n", device_xname(sc->sc_dev))); if (sc->sc_dying) return EIO; while ((n = uimin(sc->sc_bulkout_bufferlen, uio->uio_resid)) != 0) { error = uiomove(sc->sc_bulkout_buffer, n, uio); if (error) break; DPRINTFN(1, ("uscanner_do_write: transfer %d bytes\n", n)); err = usbd_bulk_transfer(sc->sc_bulkout_xfer, sc->sc_bulkout_pipe, 0, USBD_NO_TIMEOUT, sc->sc_bulkout_buffer, &n); if (err) { if (err == USBD_INTERRUPTED) error = EINTR; else error = EIO; break; } } return error; } int uscannerwrite(dev_t dev, struct uio *uio, int flag) { struct uscanner_softc *sc; int error; sc = device_lookup_private(&uscanner_cd, USCANNERUNIT(dev)); sc->sc_refcnt++; error = uscanner_do_write(sc, uio, flag); if (--sc->sc_refcnt < 0) usb_detach_wakeupold(sc->sc_dev); return error; } int uscanner_activate(device_t self, enum devact act) { struct uscanner_softc *sc = device_private(self); switch (act) { case DVACT_DEACTIVATE: sc->sc_dying = 1; return 0; default: return EOPNOTSUPP; } } int uscanner_detach(device_t self, int flags) { struct uscanner_softc *sc = device_private(self); int s; int maj, mn; DPRINTF(("uscanner_detach: sc=%p flags=%d\n", sc, flags)); sc->sc_dying = 1; sc->sc_dev_flags = 0; /* make close really close device */ /* Abort all pipes. Causes processes waiting for transfer to wake. */ if (sc->sc_bulkin_pipe != NULL) usbd_abort_pipe(sc->sc_bulkin_pipe); if (sc->sc_bulkout_pipe != NULL) usbd_abort_pipe(sc->sc_bulkout_pipe); s = splusb(); if (--sc->sc_refcnt >= 0) { /* Wait for processes to go away. */ usb_detach_waitold(sc->sc_dev); } splx(s); /* locate the major number */ maj = cdevsw_lookup_major(&uscanner_cdevsw); /* Nuke the vnodes for any open instances (calls close). */ mn = device_unit(self) * USB_MAX_ENDPOINTS; vdevgone(maj, mn, mn + USB_MAX_ENDPOINTS - 1, VCHR); usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, sc->sc_dev); seldestroy(&sc->sc_selq); return 0; } int uscannerpoll(dev_t dev, int events, struct lwp *l) { struct uscanner_softc *sc; int revents = 0; sc = device_lookup_private(&uscanner_cd, USCANNERUNIT(dev)); if (sc->sc_dying) return POLLHUP; /* * We have no easy way of determining if a read will * yield any data or a write will happen. * Pretend they will. */ revents |= events & (POLLIN | POLLRDNORM | POLLOUT | POLLWRNORM); return revents; } static void filt_uscannerdetach(struct knote *kn) { struct uscanner_softc *sc = kn->kn_hook; SLIST_REMOVE(&sc->sc_selq.sel_klist, kn, knote, kn_selnext); } static const struct filterops uscanner_seltrue_filtops = { .f_isfd = 1, .f_attach = NULL, .f_detach = filt_uscannerdetach, .f_event = filt_seltrue, }; int uscannerkqfilter(dev_t dev, struct knote *kn) { struct uscanner_softc *sc; struct klist *klist; sc = device_lookup_private(&uscanner_cd, USCANNERUNIT(dev)); if (sc->sc_dying) return ENXIO; switch (kn->kn_filter) { case EVFILT_READ: case EVFILT_WRITE: /* * We have no easy way of determining if a read will * yield any data or a write will happen. * Pretend they will. */ klist = &sc->sc_selq.sel_klist; kn->kn_fop = &uscanner_seltrue_filtops; break; default: return EINVAL; } kn->kn_hook = sc; SLIST_INSERT_HEAD(klist, kn, kn_selnext); return 0; } int uscannerioctl(dev_t dev, u_long cmd, void *addr, int flag, struct lwp *l) { return EINVAL; }