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-rw-r--r--sys/legacy/dev/usb/ulpt.c815
1 files changed, 815 insertions, 0 deletions
diff --git a/sys/legacy/dev/usb/ulpt.c b/sys/legacy/dev/usb/ulpt.c
new file mode 100644
index 0000000..99a1433
--- /dev/null
+++ b/sys/legacy/dev/usb/ulpt.c
@@ -0,0 +1,815 @@
+/* $NetBSD: ulpt.c,v 1.60 2003/10/04 21:19:50 augustss Exp $ */
+
+/*-
+ * Copyright (c) 1998, 2003 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.
+ *
+ * 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.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the NetBSD
+ * Foundation, Inc. and its contributors.
+ * 4. Neither the name of The NetBSD Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * 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 <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+/*
+ * Printer Class spec: http://www.usb.org/developers/data/devclass/usbprint109.PDF
+ */
+
+/* XXXimp: need to migrate from devclass_get_softc */
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/proc.h>
+#include <sys/kernel.h>
+#include <sys/fcntl.h>
+#include <sys/ioccom.h>
+#include <sys/module.h>
+#include <sys/bus.h>
+#include <sys/uio.h>
+#include <sys/conf.h>
+#include <sys/syslog.h>
+#include <sys/sysctl.h>
+
+#include <dev/usb/usb.h>
+#include <dev/usb/usbdi.h>
+#include <dev/usb/usbdi_util.h>
+#include "usbdevs.h"
+#include <dev/usb/usb_quirks.h>
+
+#define TIMEOUT hz*16 /* wait up to 16 seconds for a ready */
+#define STEP hz/4
+
+#define LPTPRI (PZERO+8)
+#define ULPT_BSIZE PAGE_SIZE
+
+#define ULPT_READS_PER_SEC 5
+#define ULPT_READ_TIMO 10
+
+#ifdef USB_DEBUG
+#define DPRINTF(x) if (ulptdebug) printf x
+#define DPRINTFN(n,x) if (ulptdebug>(n)) printf x
+int ulptdebug = 0;
+SYSCTL_NODE(_hw_usb, OID_AUTO, ulpt, CTLFLAG_RW, 0, "USB ulpt");
+SYSCTL_INT(_hw_usb_ulpt, OID_AUTO, debug, CTLFLAG_RW,
+ &ulptdebug, 0, "ulpt debug level");
+#else
+#define DPRINTF(x)
+#define DPRINTFN(n,x)
+#endif
+
+#define UR_GET_DEVICE_ID 0
+#define UR_GET_PORT_STATUS 1
+#define UR_SOFT_RESET 2
+
+#define LPS_NERR 0x08 /* printer no error */
+#define LPS_SELECT 0x10 /* printer selected */
+#define LPS_NOPAPER 0x20 /* printer out of paper */
+#define LPS_INVERT (LPS_SELECT|LPS_NERR)
+#define LPS_MASK (LPS_SELECT|LPS_NERR|LPS_NOPAPER)
+
+struct ulpt_softc {
+ device_t sc_dev;
+ usbd_device_handle sc_udev; /* device */
+ usbd_interface_handle sc_iface; /* interface */
+ int sc_ifaceno;
+
+ int sc_out;
+ usbd_pipe_handle sc_out_pipe; /* bulk out pipe */
+ usbd_xfer_handle sc_out_xfer;
+ void *sc_out_buf;
+
+ int sc_in;
+ usbd_pipe_handle sc_in_pipe; /* bulk in pipe */
+ usbd_xfer_handle sc_in_xfer;
+ void *sc_in_buf;
+
+ struct callout sc_read_callout;
+ int sc_has_callout;
+
+ u_char sc_state;
+#define ULPT_OPEN 0x01 /* device is open */
+#define ULPT_OBUSY 0x02 /* printer is busy doing output */
+#define ULPT_INIT 0x04 /* waiting to initialize for open */
+ u_char sc_flags;
+#define ULPT_NOPRIME 0x40 /* don't prime on open */
+ u_char sc_laststatus;
+
+ int sc_refcnt;
+ u_char sc_dying;
+
+ struct cdev *dev;
+ struct cdev *dev_noprime;
+};
+
+static d_open_t ulptopen;
+static d_close_t ulptclose;
+static d_write_t ulptwrite;
+static d_read_t ulptread;
+static d_ioctl_t ulptioctl;
+
+
+static struct cdevsw ulpt_cdevsw = {
+ .d_version = D_VERSION,
+ .d_flags = D_NEEDGIANT,
+ .d_open = ulptopen,
+ .d_close = ulptclose,
+ .d_write = ulptwrite,
+ .d_read = ulptread,
+ .d_ioctl = ulptioctl,
+ .d_name = "ulpt",
+};
+
+void ulpt_disco(void *);
+
+int ulpt_do_write(struct ulpt_softc *, struct uio *uio, int);
+int ulpt_do_read(struct ulpt_softc *, struct uio *uio, int);
+int ulpt_status(struct ulpt_softc *);
+void ulpt_reset(struct ulpt_softc *);
+int ulpt_statusmsg(u_char, struct ulpt_softc *);
+void ulpt_read_cb(usbd_xfer_handle xfer, usbd_private_handle priv,
+ usbd_status status);
+void ulpt_tick(void *xsc);
+
+#if 0
+void ieee1284_print_id(char *);
+#endif
+
+#define ULPTUNIT(s) (dev2unit(s) & 0x1f)
+#define ULPTFLAGS(s) (dev2unit(s) & 0xe0)
+
+static device_probe_t ulpt_match;
+static device_attach_t ulpt_attach;
+static device_detach_t ulpt_detach;
+
+static device_method_t ulpt_methods[] = {
+ /* Device interface */
+ DEVMETHOD(device_probe, ulpt_match),
+ DEVMETHOD(device_attach, ulpt_attach),
+ DEVMETHOD(device_detach, ulpt_detach),
+
+ { 0, 0 }
+};
+
+static driver_t ulpt_driver = {
+ "ulpt",
+ ulpt_methods,
+ sizeof(struct ulpt_softc)
+};
+
+static devclass_t ulpt_devclass;
+
+MODULE_DEPEND(umass, usb, 1, 1, 1);
+DRIVER_MODULE(ulpt, uhub, ulpt_driver, ulpt_devclass, usbd_driver_load, 0);
+
+static int
+ulpt_match(device_t self)
+{
+ struct usb_attach_arg *uaa = device_get_ivars(self);
+ usb_interface_descriptor_t *id;
+
+ DPRINTFN(10,("ulpt_match\n"));
+ if (uaa->iface == NULL)
+ return (UMATCH_NONE);
+ id = usbd_get_interface_descriptor(uaa->iface);
+ if (id != NULL &&
+ id->bInterfaceClass == UICLASS_PRINTER &&
+ id->bInterfaceSubClass == UISUBCLASS_PRINTER &&
+ (id->bInterfaceProtocol == UIPROTO_PRINTER_UNI ||
+ id->bInterfaceProtocol == UIPROTO_PRINTER_BI ||
+ id->bInterfaceProtocol == UIPROTO_PRINTER_1284))
+ return (UMATCH_IFACECLASS_IFACESUBCLASS_IFACEPROTO);
+ return (UMATCH_NONE);
+}
+
+static int
+ulpt_attach(device_t self)
+{
+ struct ulpt_softc *sc = device_get_softc(self);
+ struct usb_attach_arg *uaa = device_get_ivars(self);
+ usbd_device_handle dev = uaa->device;
+ usbd_interface_handle iface = uaa->iface;
+ usb_interface_descriptor_t *ifcd = usbd_get_interface_descriptor(iface);
+ usb_interface_descriptor_t *id, *iend;
+ usb_config_descriptor_t *cdesc;
+ usbd_status err;
+ usb_endpoint_descriptor_t *ed;
+ u_int8_t epcount;
+ int i, altno;
+
+ DPRINTFN(10,("ulpt_attach: sc=%p\n", sc));
+ sc->sc_dev = self;
+
+ /* XXX
+ * Stepping through the alternate settings needs to be abstracted out.
+ */
+ cdesc = usbd_get_config_descriptor(dev);
+ if (cdesc == NULL) {
+ printf("%s: failed to get configuration descriptor\n",
+ device_get_nameunit(sc->sc_dev));
+ return ENXIO;
+ }
+ iend = (usb_interface_descriptor_t *)
+ ((char *)cdesc + UGETW(cdesc->wTotalLength));
+#ifdef DIAGNOSTIC
+ if (ifcd < (usb_interface_descriptor_t *)cdesc ||
+ ifcd >= iend)
+ panic("ulpt: iface desc out of range");
+#endif
+ /* Step through all the descriptors looking for bidir mode */
+ for (id = ifcd, altno = 0;
+ id < iend;
+ id = (void *)((char *)id + id->bLength)) {
+ if (id->bDescriptorType == UDESC_INTERFACE &&
+ id->bInterfaceNumber == ifcd->bInterfaceNumber) {
+ if (id->bInterfaceClass == UICLASS_PRINTER &&
+ id->bInterfaceSubClass == UISUBCLASS_PRINTER &&
+ (id->bInterfaceProtocol == UIPROTO_PRINTER_BI /* ||
+ id->bInterfaceProtocol == UIPROTO_PRINTER_1284 */))
+ goto found;
+ altno++;
+ }
+ }
+ id = ifcd; /* not found, use original */
+ found:
+ if (id != ifcd) {
+ /* Found a new bidir setting */
+ DPRINTF(("ulpt_attach: set altno = %d\n", altno));
+ err = usbd_set_interface(iface, altno);
+ if (err) {
+ printf("%s: setting alternate interface failed\n",
+ device_get_nameunit(sc->sc_dev));
+ sc->sc_dying = 1;
+ return ENXIO;
+ }
+ }
+
+ epcount = 0;
+ (void)usbd_endpoint_count(iface, &epcount);
+
+ sc->sc_in = -1;
+ sc->sc_out = -1;
+ for (i = 0; i < epcount; i++) {
+ ed = usbd_interface2endpoint_descriptor(iface, i);
+ if (ed == NULL) {
+ printf("%s: couldn't get ep %d\n",
+ device_get_nameunit(sc->sc_dev), i);
+ return ENXIO;
+ }
+ if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
+ UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
+ sc->sc_in = ed->bEndpointAddress;
+ } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT &&
+ UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
+ sc->sc_out = ed->bEndpointAddress;
+ }
+ }
+ if (sc->sc_out == -1) {
+ printf("%s: could not find bulk out endpoint\n",
+ device_get_nameunit(sc->sc_dev));
+ sc->sc_dying = 1;
+ return ENXIO;
+ }
+
+ if (usbd_get_quirks(dev)->uq_flags & UQ_BROKEN_BIDIR) {
+ /* This device doesn't handle reading properly. */
+ sc->sc_in = -1;
+ }
+
+ printf("%s: using %s-directional mode\n", device_get_nameunit(sc->sc_dev),
+ sc->sc_in >= 0 ? "bi" : "uni");
+
+ DPRINTFN(10, ("ulpt_attach: bulk=%d\n", sc->sc_out));
+
+ sc->sc_iface = iface;
+ sc->sc_ifaceno = id->bInterfaceNumber;
+ sc->sc_udev = dev;
+
+#if 0
+/*
+ * This code is disabled because for some mysterious reason it causes
+ * printing not to work. But only sometimes, and mostly with
+ * UHCI and less often with OHCI. *sigh*
+ */
+ {
+ usb_config_descriptor_t *cd = usbd_get_config_descriptor(dev);
+ usb_device_request_t req;
+ int len, alen;
+
+ req.bmRequestType = UT_READ_CLASS_INTERFACE;
+ req.bRequest = UR_GET_DEVICE_ID;
+ USETW(req.wValue, cd->bConfigurationValue);
+ USETW2(req.wIndex, id->bInterfaceNumber, id->bAlternateSetting);
+ USETW(req.wLength, sizeof devinfo - 1);
+ err = usbd_do_request_flags(dev, &req, devinfo, USBD_SHORT_XFER_OK,
+ &alen, USBD_DEFAULT_TIMEOUT);
+ if (err) {
+ printf("%s: cannot get device id\n", device_get_nameunit(sc->sc_dev));
+ } else if (alen <= 2) {
+ printf("%s: empty device id, no printer connected?\n",
+ device_get_nameunit(sc->sc_dev));
+ } else {
+ /* devinfo now contains an IEEE-1284 device ID */
+ len = ((devinfo[0] & 0xff) << 8) | (devinfo[1] & 0xff);
+ if (len > sizeof devinfo - 3)
+ len = sizeof devinfo - 3;
+ devinfo[len] = 0;
+ printf("%s: device id <", device_get_nameunit(sc->sc_dev));
+ ieee1284_print_id(devinfo+2);
+ printf(">\n");
+ }
+ }
+#endif
+
+ sc->dev = make_dev(&ulpt_cdevsw, device_get_unit(self),
+ UID_ROOT, GID_OPERATOR, 0644, "ulpt%d", device_get_unit(self));
+ sc->dev_noprime = make_dev(&ulpt_cdevsw,
+ device_get_unit(self)|ULPT_NOPRIME,
+ UID_ROOT, GID_OPERATOR, 0644, "unlpt%d", device_get_unit(self));
+
+ usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, sc->sc_dev);
+
+ return 0;
+}
+
+
+static int
+ulpt_detach(device_t self)
+{
+ struct ulpt_softc *sc = device_get_softc(self);
+ int s;
+
+ DPRINTF(("ulpt_detach: sc=%p\n", sc));
+
+ sc->sc_dying = 1;
+ if (sc->sc_out_pipe != NULL)
+ usbd_abort_pipe(sc->sc_out_pipe);
+ if (sc->sc_in_pipe != NULL)
+ usbd_abort_pipe(sc->sc_in_pipe);
+
+ s = splusb();
+ if (--sc->sc_refcnt >= 0) {
+ /* There is noone to wake, aborting the pipe is enough */
+ /* Wait for processes to go away. */
+ usb_detach_wait(sc->sc_dev);
+ }
+ splx(s);
+
+ destroy_dev(sc->dev);
+ destroy_dev(sc->dev_noprime);
+
+ usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, sc->sc_dev);
+
+ return (0);
+}
+
+int
+ulpt_status(struct ulpt_softc *sc)
+{
+ usb_device_request_t req;
+ usbd_status err;
+ u_char status;
+
+ req.bmRequestType = UT_READ_CLASS_INTERFACE;
+ req.bRequest = UR_GET_PORT_STATUS;
+ USETW(req.wValue, 0);
+ USETW(req.wIndex, sc->sc_ifaceno);
+ USETW(req.wLength, 1);
+ err = usbd_do_request(sc->sc_udev, &req, &status);
+ DPRINTFN(1, ("ulpt_status: status=0x%02x err=%d\n", status, err));
+ if (!err)
+ return (status);
+ else
+ return (0);
+}
+
+void
+ulpt_reset(struct ulpt_softc *sc)
+{
+ usb_device_request_t req;
+
+ DPRINTFN(1, ("ulpt_reset\n"));
+ req.bRequest = UR_SOFT_RESET;
+ USETW(req.wValue, 0);
+ USETW(req.wIndex, sc->sc_ifaceno);
+ USETW(req.wLength, 0);
+
+ /*
+ * There was a mistake in the USB printer 1.0 spec that gave the
+ * request type as UT_WRITE_CLASS_OTHER; it should have been
+ * UT_WRITE_CLASS_INTERFACE. Many printers use the old one,
+ * so we try both.
+ */
+ req.bmRequestType = UT_WRITE_CLASS_OTHER;
+ if (usbd_do_request(sc->sc_udev, &req, 0)) { /* 1.0 */
+ req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
+ (void)usbd_do_request(sc->sc_udev, &req, 0); /* 1.1 */
+ }
+}
+#if 0
+static void
+ulpt_input(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status)
+{
+ struct ulpt_softc *sc = priv;
+ u_int32_t count;
+
+ /* Don't loop on errors or 0-length input. */
+ usbd_get_xfer_status(xfer, NULL, NULL, &count, NULL);
+ if (status != USBD_NORMAL_COMPLETION || count == 0)
+ return;
+
+ DPRINTFN(2,("ulpt_input: got some data\n"));
+ /* Do it again. */
+ if (xfer == sc->sc_in_xfer1)
+ usbd_transfer(sc->sc_in_xfer2);
+ else
+ usbd_transfer(sc->sc_in_xfer1);
+}
+#endif
+
+int ulptusein = 1;
+
+/*
+ * Reset the printer, then wait until it's selected and not busy.
+ */
+int
+ulptopen(struct cdev *dev, int flag, int mode, struct thread *p)
+{
+ u_char flags = ULPTFLAGS(dev);
+ struct ulpt_softc *sc;
+ usbd_status err;
+ int error;
+
+ sc = devclass_get_softc(ulpt_devclass, ULPTUNIT(dev));
+ if (sc == NULL)
+ return (ENXIO);
+
+ if (sc == NULL || sc->sc_iface == NULL || sc->sc_dying)
+ return (ENXIO);
+
+ if (sc->sc_state)
+ return (EBUSY);
+
+ sc->sc_state = ULPT_INIT;
+ sc->sc_flags = flags;
+ DPRINTF(("ulptopen: flags=0x%x\n", (unsigned)flags));
+
+#if defined(USB_DEBUG)
+ /* Ignoring these flags might not be a good idea */
+ if ((flags & ~ULPT_NOPRIME) != 0)
+ printf("ulptopen: flags ignored: %b\n", flags,
+ "\20\3POS_INIT\4POS_ACK\6PRIME_OPEN\7AUTOLF\10BYPASS");
+#endif
+
+
+ error = 0;
+ sc->sc_refcnt++;
+
+ if ((flags & ULPT_NOPRIME) == 0) {
+ ulpt_reset(sc);
+ if (sc->sc_dying) {
+ error = ENXIO;
+ sc->sc_state = 0;
+ goto done;
+ }
+ }
+
+ err = usbd_open_pipe(sc->sc_iface, sc->sc_out, 0, &sc->sc_out_pipe);
+ if (err) {
+ error = EIO;
+ goto err0;
+ }
+ sc->sc_out_xfer = usbd_alloc_xfer(sc->sc_udev);
+ if (sc->sc_out_xfer == NULL) {
+ error = ENOMEM;
+ goto err1;
+ }
+ sc->sc_out_buf = usbd_alloc_buffer(sc->sc_out_xfer, ULPT_BSIZE);
+ if (sc->sc_out_buf == NULL) {
+ error = ENOMEM;
+ goto err2;
+ }
+
+ if (ulptusein && sc->sc_in != -1) {
+ DPRINTF(("ulpt_open: open input pipe\n"));
+ err = usbd_open_pipe(sc->sc_iface, sc->sc_in,0,&sc->sc_in_pipe);
+ if (err) {
+ error = EIO;
+ goto err2;
+ }
+ sc->sc_in_xfer = usbd_alloc_xfer(sc->sc_udev);
+ if (sc->sc_in_xfer == NULL) {
+ error = ENOMEM;
+ goto err3;
+ }
+ sc->sc_in_buf = usbd_alloc_buffer(sc->sc_in_xfer, ULPT_BSIZE);
+ if (sc->sc_in_buf == NULL) {
+ error = ENOMEM;
+ goto err4;
+ }
+
+ /* If it's not opened for read the set up a reader. */
+ if (!(flag & FREAD)) {
+ DPRINTF(("ulpt_open: start read callout\n"));
+ callout_init(&sc->sc_read_callout, 0);
+ callout_reset(&sc->sc_read_callout, hz/5, ulpt_tick,
+ sc);
+ sc->sc_has_callout = 1;
+ }
+ }
+
+ sc->sc_state = ULPT_OPEN;
+ goto done;
+
+ err4:
+ usbd_free_xfer(sc->sc_in_xfer);
+ sc->sc_in_xfer = NULL;
+ err3:
+ usbd_close_pipe(sc->sc_in_pipe);
+ sc->sc_in_pipe = NULL;
+ err2:
+ usbd_free_xfer(sc->sc_out_xfer);
+ sc->sc_out_xfer = NULL;
+ err1:
+ usbd_close_pipe(sc->sc_out_pipe);
+ sc->sc_out_pipe = NULL;
+ err0:
+ sc->sc_state = 0;
+
+ done:
+ if (--sc->sc_refcnt < 0)
+ usb_detach_wakeup(sc->sc_dev);
+
+ DPRINTF(("ulptopen: done, error=%d\n", error));
+ return (error);
+}
+
+int
+ulpt_statusmsg(u_char status, struct ulpt_softc *sc)
+{
+ u_char new;
+
+ status = (status ^ LPS_INVERT) & LPS_MASK;
+ new = status & ~sc->sc_laststatus;
+ sc->sc_laststatus = status;
+
+ if (new & LPS_SELECT)
+ log(LOG_NOTICE, "%s: offline\n", device_get_nameunit(sc->sc_dev));
+ else if (new & LPS_NOPAPER)
+ log(LOG_NOTICE, "%s: out of paper\n", device_get_nameunit(sc->sc_dev));
+ else if (new & LPS_NERR)
+ log(LOG_NOTICE, "%s: output error\n", device_get_nameunit(sc->sc_dev));
+
+ return (status);
+}
+
+int
+ulptclose(struct cdev *dev, int flag, int mode, struct thread *p)
+{
+ struct ulpt_softc *sc;
+
+ sc = devclass_get_softc(ulpt_devclass, ULPTUNIT(dev));
+
+ if (sc->sc_state != ULPT_OPEN)
+ /* We are being forced to close before the open completed. */
+ return (0);
+
+ if (sc->sc_has_callout) {
+ callout_stop(&sc->sc_read_callout);
+ sc->sc_has_callout = 0;
+ }
+
+ if (sc->sc_out_pipe != NULL) {
+ usbd_abort_pipe(sc->sc_out_pipe);
+ usbd_close_pipe(sc->sc_out_pipe);
+ sc->sc_out_pipe = NULL;
+ }
+ if (sc->sc_out_xfer != NULL) {
+ usbd_free_xfer(sc->sc_out_xfer);
+ sc->sc_out_xfer = NULL;
+ }
+
+ if (sc->sc_in_pipe != NULL) {
+ usbd_abort_pipe(sc->sc_in_pipe);
+ usbd_close_pipe(sc->sc_in_pipe);
+ sc->sc_in_pipe = NULL;
+ }
+ if (sc->sc_in_xfer != NULL) {
+ usbd_free_xfer(sc->sc_in_xfer);
+ sc->sc_in_xfer = NULL;
+ }
+
+ sc->sc_state = 0;
+
+ DPRINTF(("ulptclose: closed\n"));
+ return (0);
+}
+
+int
+ulpt_do_write(struct ulpt_softc *sc, struct uio *uio, int flags)
+{
+ u_int32_t n;
+ int error = 0;
+ void *bufp;
+ usbd_xfer_handle xfer;
+ usbd_status err;
+
+ DPRINTF(("ulptwrite\n"));
+ xfer = sc->sc_out_xfer;
+ bufp = sc->sc_out_buf;
+ while ((n = min(ULPT_BSIZE, uio->uio_resid)) != 0) {
+ ulpt_statusmsg(ulpt_status(sc), sc);
+ error = uiomove(bufp, n, uio);
+ if (error)
+ break;
+ DPRINTFN(1, ("ulptwrite: transfer %d bytes\n", n));
+ err = usbd_bulk_transfer(xfer, sc->sc_out_pipe, USBD_NO_COPY,
+ USBD_NO_TIMEOUT, bufp, &n, "ulptwr");
+ if (err) {
+ DPRINTF(("ulptwrite: error=%d\n", err));
+ error = EIO;
+ break;
+ }
+ }
+
+ return (error);
+}
+
+int
+ulptwrite(struct cdev *dev, struct uio *uio, int flags)
+{
+ struct ulpt_softc *sc;
+ int error;
+
+ sc = devclass_get_softc(ulpt_devclass, ULPTUNIT(dev));
+
+ if (sc->sc_dying)
+ return (EIO);
+
+ sc->sc_refcnt++;
+ error = ulpt_do_write(sc, uio, flags);
+ if (--sc->sc_refcnt < 0)
+ usb_detach_wakeup(sc->sc_dev);
+ return (error);
+}
+
+int
+ulpt_do_read(struct ulpt_softc *sc, struct uio *uio, int flags)
+{
+ u_int32_t n, on;
+ int error = 0;
+ void *bufp;
+ usbd_xfer_handle xfer;
+ usbd_status err;
+
+ DPRINTF(("ulptread\n"));
+
+ if (sc->sc_in_pipe == NULL)
+ return 0;
+
+ xfer = sc->sc_in_xfer;
+ bufp = sc->sc_in_buf;
+ while ((n = min(ULPT_BSIZE, uio->uio_resid)) != 0) {
+ DPRINTFN(1, ("ulptread: transfer %d bytes\n", n));
+ on = n;
+ err = usbd_bulk_transfer(xfer, sc->sc_in_pipe,
+ USBD_NO_COPY | USBD_SHORT_XFER_OK,
+ USBD_NO_TIMEOUT, bufp, &n, "ulptrd");
+ if (err) {
+ DPRINTF(("ulptread: error=%d\n", err));
+ error = EIO;
+ break;
+ }
+ error = uiomove(bufp, n, uio);
+ if (error)
+ break;
+ if (on != n)
+ break;
+ }
+
+ return (error);
+}
+
+int
+ulptread(struct cdev *dev, struct uio *uio, int flags)
+{
+ struct ulpt_softc *sc;
+ int error;
+
+ sc = devclass_get_softc(ulpt_devclass, ULPTUNIT(dev));
+
+ if (sc->sc_dying)
+ return (EIO);
+
+ sc->sc_refcnt++;
+ error = ulpt_do_read(sc, uio, flags);
+ if (--sc->sc_refcnt < 0)
+ usb_detach_wakeup(sc->sc_dev);
+ return (error);
+}
+
+void
+ulpt_read_cb(usbd_xfer_handle xfer, usbd_private_handle priv,
+ usbd_status status)
+{
+ usbd_status err;
+ u_int32_t n;
+ usbd_private_handle xsc;
+ struct ulpt_softc *sc;
+
+ usbd_get_xfer_status(xfer, &xsc, NULL, &n, &err);
+ sc = xsc;
+
+ DPRINTFN(1,("ulpt_read_cb: start sc=%p, err=%d n=%d\n", sc, err, n));
+
+#ifdef ULPT_DEBUG
+ if (!err && n > 0)
+ DPRINTF(("ulpt_tick: discarding %d bytes\n", n));
+#endif
+ if (!err || err == USBD_TIMEOUT)
+ callout_reset(&sc->sc_read_callout, hz / ULPT_READS_PER_SEC,
+ ulpt_tick, sc);
+}
+
+void
+ulpt_tick(void *xsc)
+{
+ struct ulpt_softc *sc = xsc;
+ usbd_status err;
+
+ if (sc == NULL || sc->sc_dying)
+ return;
+
+ DPRINTFN(1,("ulpt_tick: start sc=%p\n", sc));
+
+ usbd_setup_xfer(sc->sc_in_xfer, sc->sc_in_pipe, sc, sc->sc_in_buf,
+ ULPT_BSIZE, USBD_NO_COPY | USBD_SHORT_XFER_OK,
+ ULPT_READ_TIMO, ulpt_read_cb);
+ err = usbd_transfer(sc->sc_in_xfer);
+ DPRINTFN(1,("ulpt_tick: err=%d\n", err));
+}
+
+int
+ulptioctl(struct cdev *dev, u_long cmd, caddr_t data, int flag, struct thread *p)
+{
+ int error = 0;
+
+ switch (cmd) {
+ default:
+ error = ENODEV;
+ }
+
+ return (error);
+}
+
+#if 0
+/* XXX This does not belong here. */
+/*
+ * Print select parts of an IEEE 1284 device ID.
+ */
+void
+ieee1284_print_id(char *str)
+{
+ char *p, *q;
+
+ for (p = str-1; p; p = strchr(p, ';')) {
+ p++; /* skip ';' */
+ if (strncmp(p, "MFG:", 4) == 0 ||
+ strncmp(p, "MANUFACTURER:", 14) == 0 ||
+ strncmp(p, "MDL:", 4) == 0 ||
+ strncmp(p, "MODEL:", 6) == 0) {
+ q = strchr(p, ';');
+ if (q)
+ printf("%.*s", (int)(q - p + 1), p);
+ }
+ }
+}
+#endif
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