/* $OpenBSD: ulpt.c,v 1.25 2007/06/06 19:25:49 mk Exp $ */ /* $NetBSD: ulpt.c,v 1.57 2003/01/05 10:19:42 scw Exp $ */ /* $FreeBSD: src/sys/dev/usb/ulpt.c,v 1.24 1999/11/17 22:33:44 n_hibma Exp $ */ /* * Copyright (c) 1998 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. */ /* * Printer Class spec: * http://www.usb.org/developers/devclass_docs/usbprint11.pdf */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #define TIMEOUT hz*16 /* wait up to 16 seconds for a ready */ #define STEP hz/4 #define LPTPRI (PZERO+8) #define ULPT_BSIZE 16384 #ifdef ULPT_DEBUG #define DPRINTF(x) do { if (ulptdebug) printf x; } while (0) #define DPRINTFN(n,x) do { if (ulptdebug>(n)) printf x; } while (0) int ulptdebug = 0; #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 { struct device 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 */ int sc_in; usbd_pipe_handle sc_in_pipe; /* bulk in pipe */ usbd_xfer_handle sc_in_xfer1; usbd_xfer_handle sc_in_xfer2; u_char sc_junk[64]; /* somewhere to dump input */ 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; }; void ulpt_disco(void *); int ulpt_do_write(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 *); #if 0 void ieee1284_print_id(char *); #endif #define ULPTUNIT(s) (minor(s) & 0x1f) #define ULPTFLAGS(s) (minor(s) & 0xe0) USB_DECLARE_DRIVER(ulpt); int ulpt_match(struct device *parent, void *match, void *aux) { struct usb_attach_arg *uaa = aux; 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); } void ulpt_attach(struct device *parent, struct device *self, void *aux) { struct ulpt_softc *sc = (struct ulpt_softc *)self; struct usb_attach_arg *uaa = aux; 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; char *devinfop; usb_endpoint_descriptor_t *ed; u_int8_t epcount; int i, altno; DPRINTFN(10,("ulpt_attach: sc=%p\n", sc)); devinfop = usbd_devinfo_alloc(dev, 0); printf("\n%s: %s, iclass %d/%d\n", USBDEVNAME(sc->sc_dev), devinfop, ifcd->bInterfaceClass, ifcd->bInterfaceSubClass); usbd_devinfo_free(devinfop); /* 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", USBDEVNAME(sc->sc_dev)); return; } 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", USBDEVNAME(sc->sc_dev)); sc->sc_dying = 1; return; } } 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", USBDEVNAME(sc->sc_dev), i); return; } 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", USBDEVNAME(sc->sc_dev)); sc->sc_dying = 1; return; } 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", USBDEVNAME(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, DEVINFOSIZE - 1); err = usbd_do_request_flags(dev, &req, devinfop, USBD_SHORT_XFER_OK, &alen, USBD_DEFAULT_TIMEOUT); if (err) { printf("%s: cannot get device id\n", USBDEVNAME(sc->sc_dev)); } else if (alen <= 2) { printf("%s: empty device id, no printer connected?\n", USBDEVNAME(sc->sc_dev)); } else { /* devinfop now contains an IEEE-1284 device ID */ len = ((devinfop[0] & 0xff) << 8) | (devinfop[1] & 0xff); if (len > DEVINFOSIZE - 3) len = DEVINFOSIZE - 3; devinfo[len] = 0; printf("%s: device id <", USBDEVNAME(sc->sc_dev)); ieee1284_print_id(devinfop+2); printf(">\n"); } } #endif usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, USBDEV(sc->sc_dev)); } int ulpt_activate(device_ptr_t self, enum devact act) { struct ulpt_softc *sc = (struct ulpt_softc *)self; switch (act) { case DVACT_ACTIVATE: break; case DVACT_DEACTIVATE: sc->sc_dying = 1; break; } return (0); } int ulpt_detach(struct device *self, int flags) { struct ulpt_softc *sc = (struct ulpt_softc *)self; int s; int maj, mn; 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(USBDEV(sc->sc_dev)); } splx(s); /* locate the major number */ for (maj = 0; maj < nchrdev; maj++) if (cdevsw[maj].d_open == ulptopen) break; /* Nuke the vnodes for any open instances (calls close). */ mn = self->dv_unit; vdevgone(maj, mn, mn, VCHR); vdevgone(maj, mn | ULPT_NOPRIME , mn | ULPT_NOPRIME, VCHR); usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, USBDEV(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 */ } } static void ulpt_input(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status) { struct ulpt_softc *sc = priv; 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); } int ulptusein = 1; /* * Reset the printer, then wait until it's selected and not busy. */ int ulptopen(dev_t dev, int flag, int mode, usb_proc_ptr p) { u_char flags = ULPTFLAGS(dev); struct ulpt_softc *sc; usbd_status err; int spin, error; USB_GET_SC_OPEN(ulpt, ULPTUNIT(dev), sc); 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)); error = 0; sc->sc_refcnt++; if ((flags & ULPT_NOPRIME) == 0) ulpt_reset(sc); for (spin = 0; (ulpt_status(sc) & LPS_SELECT) == 0; spin += STEP) { DPRINTF(("ulpt_open: waiting a while\n")); if (spin >= TIMEOUT) { error = EBUSY; sc->sc_state = 0; goto done; } /* wait 1/4 second, give up if we get a signal */ error = tsleep((caddr_t)sc, LPTPRI | PCATCH, "ulptop", STEP); if (error != EWOULDBLOCK) { sc->sc_state = 0; goto done; } 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) { sc->sc_state = 0; error = EIO; goto done; } 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; usbd_close_pipe(sc->sc_out_pipe); sc->sc_out_pipe = NULL; sc->sc_state = 0; goto done; } sc->sc_in_xfer1 = usbd_alloc_xfer(sc->sc_udev); sc->sc_in_xfer2 = usbd_alloc_xfer(sc->sc_udev); if (sc->sc_in_xfer1 == NULL || sc->sc_in_xfer2 == NULL) { error = ENOMEM; if (sc->sc_in_xfer1 != NULL) { usbd_free_xfer(sc->sc_in_xfer1); sc->sc_in_xfer1 = NULL; } if (sc->sc_in_xfer2 != NULL) { usbd_free_xfer(sc->sc_in_xfer2); sc->sc_in_xfer2 = NULL; } usbd_close_pipe(sc->sc_out_pipe); sc->sc_out_pipe = NULL; usbd_close_pipe(sc->sc_in_pipe); sc->sc_in_pipe = NULL; sc->sc_state = 0; goto done; } usbd_setup_xfer(sc->sc_in_xfer1, sc->sc_in_pipe, sc, sc->sc_junk, sizeof sc->sc_junk, USBD_SHORT_XFER_OK, USBD_NO_TIMEOUT, ulpt_input); usbd_setup_xfer(sc->sc_in_xfer2, sc->sc_in_pipe, sc, sc->sc_junk, sizeof sc->sc_junk, USBD_SHORT_XFER_OK, USBD_NO_TIMEOUT, ulpt_input); usbd_transfer(sc->sc_in_xfer1); /* ignore failed start */ } sc->sc_state = ULPT_OPEN; done: if (--sc->sc_refcnt < 0) usb_detach_wakeup(USBDEV(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", USBDEVNAME(sc->sc_dev)); else if (new & LPS_NOPAPER) log(LOG_NOTICE, "%s: out of paper\n", USBDEVNAME(sc->sc_dev)); else if (new & LPS_NERR) log(LOG_NOTICE, "%s: output error\n", USBDEVNAME(sc->sc_dev)); return (status); } int ulptclose(dev_t dev, int flag, int mode, usb_proc_ptr p) { struct ulpt_softc *sc; USB_GET_SC(ulpt, ULPTUNIT(dev), sc); if (sc->sc_state != ULPT_OPEN) /* We are being forced to close before the open completed. */ return (0); if (sc->sc_out_pipe != NULL) { usbd_close_pipe(sc->sc_out_pipe); sc->sc_out_pipe = 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_xfer1 != NULL) { usbd_free_xfer(sc->sc_in_xfer1); sc->sc_in_xfer1 = NULL; } if (sc->sc_in_xfer2 != NULL) { usbd_free_xfer(sc->sc_in_xfer2); sc->sc_in_xfer2 = 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 = usbd_alloc_xfer(sc->sc_udev); if (xfer == NULL) return (ENOMEM); bufp = usbd_alloc_buffer(xfer, ULPT_BSIZE); if (bufp == NULL) { usbd_free_xfer(xfer); return (ENOMEM); } 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; } } usbd_free_xfer(xfer); return (error); } int ulptwrite(dev_t dev, struct uio *uio, int flags) { struct ulpt_softc *sc; int error; USB_GET_SC(ulpt, ULPTUNIT(dev), sc); if (sc->sc_dying) return (EIO); sc->sc_refcnt++; error = ulpt_do_write(sc, uio, flags); if (--sc->sc_refcnt < 0) usb_detach_wakeup(USBDEV(sc->sc_dev)); return (error); } int ulptioctl(dev_t dev, u_long cmd, caddr_t data, int flag, usb_proc_ptr p) { int error = 0; switch (cmd) { default: error = ENODEV; } return (error); } #if 0 /* XXX This does not belong here. */ /* * Print select parts of a 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