415 lines
11 KiB
C
415 lines
11 KiB
C
/* $NetBSD: ulpt.c,v 1.8 1998/12/26 12:53:02 augustss Exp $ */
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/*
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* Copyright (c) 1998 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Lennart Augustsson (augustss@carlstedt.se) at
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* Carlstedt Research & Technology.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/proc.h>
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#include <sys/malloc.h>
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#include <sys/kernel.h>
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#if defined(__NetBSD__)
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#include <sys/device.h>
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#include <sys/ioctl.h>
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#elif defined(__FreeBSD__)
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#include <sys/ioccom.h>
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#include <sys/module.h>
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#include <sys/bus.h>
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#endif
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#include <sys/uio.h>
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#include <sys/conf.h>
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#include <sys/syslog.h>
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#include <dev/usb/usb.h>
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#include <dev/usb/usbdi.h>
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#include <dev/usb/usbdivar.h>
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#include <dev/usb/usbdi_util.h>
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#include <dev/usb/usbdevs.h>
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#include <dev/usb/usb_quirks.h>
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#define TIMEOUT hz*16 /* wait up to 16 seconds for a ready */
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#define STEP hz/4
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#define LPTPRI (PZERO+8)
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#define ULPT_BSIZE 1024
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#ifdef USB_DEBUG
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#define DPRINTF(x) if (ulptdebug) printf x
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#define DPRINTFN(n,x) if (ulptdebug>(n)) printf x
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int ulptdebug = 0;
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#else
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#define DPRINTF(x)
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#define DPRINTFN(n,x)
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#endif
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#define UR_GET_DEVICE_ID 0
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#define UR_GET_PORT_STATUS 1
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#define UR_SOFT_RESET 2
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#define LPS_NERR 0x08 /* printer no error */
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#define LPS_SELECT 0x10 /* printer selected */
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#define LPS_NOPAPER 0x20 /* printer out of paper */
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#define LPS_INVERT (LPS_SELECT|LPS_NERR)
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#define LPS_MASK (LPS_SELECT|LPS_NERR|LPS_NOPAPER)
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struct ulpt_softc {
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bdevice sc_dev;
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usbd_device_handle sc_udev; /* device */
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usbd_interface_handle sc_iface; /* interface */
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int sc_ifaceno;
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usbd_pipe_handle sc_bulkpipe; /* bulk pipe */
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int sc_bulk;
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u_char sc_state;
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#define ULPT_OPEN 0x01 /* device is open */
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#define ULPT_OBUSY 0x02 /* printer is busy doing output */
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#define ULPT_INIT 0x04 /* waiting to initialize for open */
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u_char sc_flags;
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#define ULPT_NOPRIME 0x40 /* don't prime on open */
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u_char sc_laststatus;
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};
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int ulptopen __P((dev_t, int, int, struct proc *));
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int ulptclose __P((dev_t, int, int, struct proc *p));
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int ulptwrite __P((dev_t, struct uio *uio, int));
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int ulptioctl __P((dev_t, u_long, caddr_t, int, struct proc *));
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void ulpt_disco __P((void *));
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int ulpt_status __P((struct ulpt_softc *));
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void ulpt_reset __P((struct ulpt_softc *));
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int ulpt_statusmsg __P((u_char, struct ulpt_softc *));
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#define ULPTUNIT(s) (minor(s) & 0x1f)
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#define ULPTFLAGS(s) (minor(s) & 0xe0)
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USB_DECLARE_DRIVER(ulpt);
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USB_MATCH(ulpt)
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{
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USB_MATCH_START(ulpt, uaa);
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usb_interface_descriptor_t *id;
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DPRINTFN(10,("ulpt_match\n"));
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if (!uaa->iface)
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return (UMATCH_NONE);
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id = usbd_get_interface_descriptor(uaa->iface);
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if (id &&
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id->bInterfaceClass == UCLASS_PRINTER &&
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id->bInterfaceSubClass == USUBCLASS_PRINTER &&
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(id->bInterfaceProtocol == UPROTO_PRINTER_UNI ||
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id->bInterfaceProtocol == UPROTO_PRINTER_BI))
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return (UMATCH_IFACECLASS_IFACESUBCLASS_IFACEPROTO);
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return (UMATCH_NONE);
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}
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USB_ATTACH(ulpt)
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{
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USB_ATTACH_START(ulpt, sc, uaa);
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usbd_device_handle dev = uaa->device;
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usbd_interface_handle iface = uaa->iface;
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usb_interface_descriptor_t *id = usbd_get_interface_descriptor(iface);
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#if 0
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usb_config_descriptor_t *cd = usbd_get_config_descriptor(dev);
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usb_device_request_t req;
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#endif
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char devinfo[1024];
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usb_endpoint_descriptor_t *ed;
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usbd_status r;
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DPRINTFN(10,("ulpt_attach: sc=%p\n", sc));
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usbd_devinfo(dev, 0, devinfo);
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USB_ATTACH_SETUP;
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printf("%s: %s, iclass %d/%d\n", USBDEVNAME(sc->sc_dev),
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devinfo, id->bInterfaceClass, id->bInterfaceSubClass);
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/* Figure out which endpoint is the bulk out endpoint. */
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ed = usbd_interface2endpoint_descriptor(iface, 0);
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if (!ed)
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goto nobulk;
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if ((ed->bEndpointAddress & UE_IN) != UE_OUT ||
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(ed->bmAttributes & UE_XFERTYPE) != UE_BULK) {
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/* In case we are using a bidir protocol... */
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ed = usbd_interface2endpoint_descriptor(iface, 1);
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if (!ed)
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goto nobulk;
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if ((ed->bEndpointAddress & UE_IN) != UE_OUT ||
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(ed->bmAttributes & UE_XFERTYPE) != UE_BULK)
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goto nobulk;
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}
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sc->sc_bulk = ed->bEndpointAddress;
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DPRINTFN(10, ("ulpt_attach: bulk=%d\n", sc->sc_bulk));
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sc->sc_iface = iface;
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r = usbd_interface2device_handle(iface, &sc->sc_udev);
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if (r != USBD_NORMAL_COMPLETION)
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USB_ATTACH_ERROR_RETURN;
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sc->sc_ifaceno = id->bInterfaceNumber;
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#if 0
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XXX needs a different way to read the id string since the length
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is unknown. usbd_do_request() returns error on a short transfer.
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req.bmRequestType = UT_READ_CLASS_INTERFACE;
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req.bRequest = UR_GET_DEVICE_ID;
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USETW(req.wValue, cd->bConfigurationValue);
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USETW2(req.wIndex, id->bInterfaceNumber, id->bAlternateSetting);
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USETW(req.wLength, sizeof devinfo - 1);
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r = usbd_do_request(dev, &req, devinfo);
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if (r == USBD_NORMAL_COMPLETION) {
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int len;
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char *idstr;
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len = (devinfo[0] << 8) | (devinfo[1] & 0xff);
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/* devinfo now contains an IEEE-1284 device ID */
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idstr = devinfo+2;
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idstr[len] = 0;
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printf("%s: device id <%s>\n", USBDEVNAME(sc->sc_dev), idstr);
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} else {
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printf("%s: cannot get device id\n", USBDEVNAME(sc->sc_dev));
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}
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#endif
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USB_ATTACH_SUCCESS_RETURN;
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nobulk:
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printf("%s: could not find bulk endpoint\n", USBDEVNAME(sc->sc_dev));
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USB_ATTACH_ERROR_RETURN;
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}
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int
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ulpt_status(sc)
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struct ulpt_softc *sc;
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{
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usb_device_request_t req;
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usbd_status r;
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u_char status;
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req.bmRequestType = UT_READ_CLASS_INTERFACE;
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req.bRequest = UR_GET_PORT_STATUS;
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USETW(req.wValue, 0);
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USETW(req.wIndex, sc->sc_ifaceno);
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USETW(req.wLength, 1);
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r = usbd_do_request(sc->sc_udev, &req, &status);
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DPRINTFN(1, ("ulpt_status: status=0x%02x r=%d\n", status, r));
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if (r == USBD_NORMAL_COMPLETION)
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return (status);
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else
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return (0);
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}
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void
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ulpt_reset(sc)
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struct ulpt_softc *sc;
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{
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usb_device_request_t req;
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DPRINTFN(1, ("ulpt_reset\n"));
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req.bmRequestType = UT_WRITE_CLASS_OTHER;
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req.bRequest = UR_SOFT_RESET;
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USETW(req.wValue, 0);
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USETW(req.wIndex, sc->sc_ifaceno);
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USETW(req.wLength, 0);
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(void)usbd_do_request(sc->sc_udev, &req, 0);
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}
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/*
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* Reset the printer, then wait until it's selected and not busy.
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*/
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int
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ulptopen(dev, flag, mode, p)
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dev_t dev;
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int flag;
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int mode;
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struct proc *p;
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{
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u_char flags = ULPTFLAGS(dev);
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usbd_status r;
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int spin, error;
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USB_GET_SC_OPEN(ulpt, ULPTUNIT(dev), sc);
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if (!sc || !sc->sc_iface)
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return ENXIO;
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if (sc->sc_state)
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return EBUSY;
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sc->sc_state = ULPT_INIT;
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sc->sc_flags = flags;
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DPRINTF(("ulptopen: flags=0x%x\n", (unsigned)flags));
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if ((flags & ULPT_NOPRIME) == 0)
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ulpt_reset(sc);
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for (spin = 0; (ulpt_status(sc) & LPS_SELECT) == 0; spin += STEP) {
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if (spin >= TIMEOUT) {
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sc->sc_state = 0;
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return EBUSY;
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}
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/* wait 1/4 second, give up if we get a signal */
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error = tsleep((caddr_t)sc, LPTPRI | PCATCH, "ulptop", STEP);
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if (error != EWOULDBLOCK) {
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sc->sc_state = 0;
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return error;
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}
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}
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r = usbd_open_pipe(sc->sc_iface, sc->sc_bulk, 0, &sc->sc_bulkpipe);
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if (r != USBD_NORMAL_COMPLETION) {
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sc->sc_state = 0;
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return (EIO);
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}
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sc->sc_state = ULPT_OPEN;
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DPRINTF(("ulptopen: done\n"));
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return (0);
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}
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int
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ulpt_statusmsg(status, sc)
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u_char status;
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struct ulpt_softc *sc;
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{
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u_char new;
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status = (status ^ LPS_INVERT) & LPS_MASK;
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new = status & ~sc->sc_laststatus;
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sc->sc_laststatus = status;
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if (new & LPS_SELECT)
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log(LOG_NOTICE, "%s: offline\n", USBDEVNAME(sc->sc_dev));
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else if (new & LPS_NOPAPER)
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log(LOG_NOTICE, "%s: out of paper\n", USBDEVNAME(sc->sc_dev));
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else if (new & LPS_NERR)
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log(LOG_NOTICE, "%s: output error\n", USBDEVNAME(sc->sc_dev));
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return status;
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}
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int
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ulptclose(dev, flag, mode, p)
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dev_t dev;
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int flag;
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int mode;
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struct proc *p;
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{
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USB_GET_SC(ulpt, ULPTUNIT(dev), sc);
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usbd_close_pipe(sc->sc_bulkpipe);
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sc->sc_state = 0;
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DPRINTF(("ulptclose: closed\n"));
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return (0);
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}
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int
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ulptwrite(dev, uio, flags)
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dev_t dev;
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struct uio *uio;
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int flags;
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{
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size_t n;
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int error = 0;
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char buf[ULPT_BSIZE];
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usbd_request_handle reqh;
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usbd_status r;
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USB_GET_SC(ulpt, ULPTUNIT(dev), sc);
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DPRINTF(("ulptwrite\n"));
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reqh = usbd_alloc_request();
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if (reqh == 0)
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return (ENOMEM);
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while ((n = min(ULPT_BSIZE, uio->uio_resid)) != 0) {
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ulpt_statusmsg(ulpt_status(sc), sc);
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error = uiomove(buf, n, uio);
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if (error)
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break;
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/* XXX use callback to enable interrupt? */
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r = usbd_setup_request(reqh, sc->sc_bulkpipe, 0, buf, n,
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0, USBD_NO_TIMEOUT, 0);
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if (r != USBD_NORMAL_COMPLETION) {
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error = EIO;
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break;
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}
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DPRINTFN(1, ("ulptwrite: transfer %d bytes\n", n));
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r = usbd_sync_transfer(reqh);
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if (r != USBD_NORMAL_COMPLETION) {
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DPRINTF(("ulptwrite: error=%d\n", r));
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usbd_clear_endpoint_stall(sc->sc_bulkpipe);
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error = EIO;
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break;
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}
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}
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usbd_free_request(reqh);
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return (error);
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}
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int
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ulptioctl(dev, cmd, data, flag, p)
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dev_t dev;
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u_long cmd;
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caddr_t data;
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int flag;
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struct proc *p;
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{
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int error = 0;
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switch (cmd) {
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default:
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error = ENODEV;
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}
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return error;
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}
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#if defined(__FreeBSD__)
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static int
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ulpt_detach(device_t self)
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{
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struct ulpt_softc *sc = device_get_softc(self);
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char *devinfo = (char *) device_get_desc(self);
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if (devinfo) {
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device_set_desc(self, NULL);
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free(devinfo, M_USB);
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}
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return 0;
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}
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DRIVER_MODULE(ulpt, usb, ulpt_driver, ulpt_devclass, usb_driver_load, 0);
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#endif
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