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      1 /*	$NetBSD: pciide.c,v 1.219 2010/11/06 00:29:09 jakllsch Exp $	*/
      2 
      3 
      4 /*
      5  * Copyright (c) 1999, 2000, 2001 Manuel Bouyer.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     17  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     18  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     19  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     21  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     22  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     23  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     24  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     25  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     26  *
     27  */
     28 
     29 
     30 /*
     31  * Copyright (c) 1996, 1998 Christopher G. Demetriou.  All rights reserved.
     32  *
     33  * Redistribution and use in source and binary forms, with or without
     34  * modification, are permitted provided that the following conditions
     35  * are met:
     36  * 1. Redistributions of source code must retain the above copyright
     37  *    notice, this list of conditions and the following disclaimer.
     38  * 2. Redistributions in binary form must reproduce the above copyright
     39  *    notice, this list of conditions and the following disclaimer in the
     40  *    documentation and/or other materials provided with the distribution.
     41  * 3. All advertising materials mentioning features or use of this software
     42  *    must display the following acknowledgement:
     43  *      This product includes software developed by Christopher G. Demetriou
     44  *	for the NetBSD Project.
     45  * 4. The name of the author may not be used to endorse or promote products
     46  *    derived from this software without specific prior written permission
     47  *
     48  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     49  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     50  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     51  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     52  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     53  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     54  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     55  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     56  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     57  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     58  */
     59 
     60 /*
     61  * PCI IDE controller driver.
     62  *
     63  * Author: Christopher G. Demetriou, March 2, 1998 (derived from NetBSD
     64  * sys/dev/pci/ppb.c, revision 1.16).
     65  *
     66  * See "PCI IDE Controller Specification, Revision 1.0 3/4/94" and
     67  * "Programming Interface for Bus Master IDE Controller, Revision 1.0
     68  * 5/16/94" from the PCI SIG.
     69  *
     70  */
     71 
     72 #include <sys/cdefs.h>
     73 __KERNEL_RCSID(0, "$NetBSD: pciide.c,v 1.219 2010/11/06 00:29:09 jakllsch Exp $");
     74 
     75 #include <sys/param.h>
     76 
     77 #include <dev/pci/pcivar.h>
     78 #include <dev/pci/pciidereg.h>
     79 #include <dev/pci/pciidevar.h>
     80 
     81 static int	pciide_match(device_t, cfdata_t, void *);
     82 static void	pciide_attach(device_t, device_t, void *);
     83 
     84 CFATTACH_DECL_NEW(pciide, sizeof(struct pciide_softc),
     85     pciide_match, pciide_attach, pciide_detach, NULL);
     86 
     87 static int
     88 pciide_match(device_t parent, cfdata_t match, void *aux)
     89 {
     90 	struct pci_attach_args *pa = aux;
     91 
     92 	/*
     93 	 * Check the ID register to see that it's a PCI IDE controller.
     94 	 * If it is, we assume that we can deal with it; it _should_
     95 	 * work in a standardized way...
     96 	 */
     97 	if (PCI_CLASS(pa->pa_class) == PCI_CLASS_MASS_STORAGE &&
     98 	    PCI_SUBCLASS(pa->pa_class) == PCI_SUBCLASS_MASS_STORAGE_IDE) {
     99 		return (1);
    100 	}
    101 
    102 	return (0);
    103 }
    104 
    105 static void
    106 pciide_attach(device_t parent, device_t self, void *aux)
    107 {
    108 	struct pci_attach_args *pa = aux;
    109 	struct pciide_softc *sc = device_private(self);
    110 
    111 	sc->sc_wdcdev.sc_atac.atac_dev = self;
    112 
    113 	pciide_common_attach(sc, pa, NULL);
    114 }
    115