sys/dev/pci/lpt_puc.c

   1 /*      $NetBSD: lpt_puc.c,v 1.13 2007/10/19 12:00:52 ad Exp $  */
   2
   3 /*
   4  * Copyright (c) 1998 Christopher G. Demetriou.  All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in the
  13  *    documentation and/or other materials provided with the distribution.
  14  * 3. All advertising materials mentioning features or use of this software
  15  *    must display the following acknowledgement:
  16  *      This product includes software developed by Christopher G. Demetriou
  17  *      for the NetBSD Project.
  18  * 4. The name of the author may not be used to endorse or promote products
  19  *    derived from this software without specific prior written permission
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  22  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  23  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  24  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  25  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  26  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  27  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  28  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  29  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  30  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  31  */
  32
  33 /*
  34  * Machine-independent parallel port ('lpt') driver attachment to "PCI
  35  * Universal Communications" controller driver.
  36  *
  37  * Author: Christopher G. Demetriou, May 17, 1998.
  38  */
  39
  40 #include <sys/cdefs.h>
  41 __KERNEL_RCSID(0, "$NetBSD: lpt_puc.c,v 1.13 2007/10/19 12:00:52 ad Exp $");
  42
  43 #include <sys/param.h>
  44 #include <sys/systm.h>
  45 #include <sys/device.h>
  46
  47 #include <sys/bus.h>
  48
  49 #include <dev/pci/pcivar.h>
  50 #include <dev/pci/pucvar.h>
  51 #include <dev/ic/lptvar.h>
  52
  53 static int
  54 lpt_puc_probe(device_t parent, cfdata_t match, void *aux)
  55 {
  56         struct puc_attach_args *aa = aux;
  57
  58         /*
  59          * Locators already matched, just check the type.
  60          */
  61         if (aa->type != PUC_PORT_TYPE_LPT)
  62                 return (0);
  63
  64         return (1);
  65 }
  66
  67 static void
  68 lpt_puc_attach(device_t parent, device_t self, void *aux)
  69 {
  70         struct lpt_softc *sc = device_private(self);
  71         struct puc_attach_args *aa = aux;
  72         const char *intrstr;
  73
  74         sc->sc_dev = self;
  75         sc->sc_iot = aa->t;
  76         sc->sc_ioh = aa->h;
  77
  78         intrstr = pci_intr_string(aa->pc, aa->intrhandle);
  79         sc->sc_ih = pci_intr_establish(aa->pc, aa->intrhandle, IPL_TTY,
  80             lptintr, sc);
  81         if (sc->sc_ih == NULL) {
  82                 aprint_error(": couldn't establish interrupt");
  83                 if (intrstr != NULL)
  84                         aprint_error(" at %s", intrstr);
  85                 aprint_error("\n");
  86                 return;
  87         }
  88         aprint_normal(": interrupting at %s\n", intrstr);
  89
  90         lpt_attach_subr(sc);
  91 }
  92
  93 CFATTACH_DECL_NEW(lpt_puc, sizeof(struct lpt_softc),
  94     lpt_puc_probe, lpt_puc_attach, NULL, NULL);