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      1 /* $NetBSD: p64h2apic.c,v 1.15 2009/05/04 12:15:51 cegger Exp $ */
      2 
      3 /*-
      4  * Copyright (c) 2002 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Bill Sommerfeld.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 /*
     33  * Driver for P64H2 IOxAPIC
     34  *
     35  * This is an ioapic which appears in PCI space.
     36  * This driver currently does nothing useful but will eventually
     37  * thwak the ioapic into working correctly.
     38  */
     39 
     40 #include <sys/cdefs.h>
     41 __KERNEL_RCSID(0, "$NetBSD: p64h2apic.c,v 1.15 2009/05/04 12:15:51 cegger Exp $");
     42 
     43 #include <sys/param.h>
     44 #include <sys/systm.h>
     45 #include <sys/kernel.h>
     46 #include <sys/device.h>
     47 
     48 #include <dev/pci/pcireg.h>
     49 #include <dev/pci/pcivar.h>
     50 #include <dev/pci/pcidevs.h>
     51 
     52 static int	p64h2match(device_t, cfdata_t, void *);
     53 static void	p64h2attach(device_t, device_t, void *);
     54 
     55 struct p64h2apic_softc {
     56 	pcitag_t sc_tag;
     57 };
     58 
     59 CFATTACH_DECL_NEW(p64h2apic, sizeof(struct p64h2apic_softc),
     60     p64h2match, p64h2attach, NULL, NULL);
     61 
     62 static int
     63 p64h2match(device_t parent, cfdata_t match, void *aux)
     64 {
     65 	struct pci_attach_args *pa = aux;
     66 
     67 	if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_INTEL &&
     68 	    PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_82870P2_IOxAPIC)
     69 		return (1);
     70 
     71 	return (0);
     72 }
     73 
     74 static void
     75 p64h2attach(device_t parent, device_t self, void *aux)
     76 {
     77 	struct p64h2apic_softc *sc = device_private(self);
     78 	struct pci_attach_args *pa = aux;
     79 	char devinfo[256];
     80 
     81 	aprint_naive("\n");
     82 	aprint_normal("\n");
     83 
     84 	pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo, sizeof(devinfo));
     85 	aprint_normal_dev(self, "%s (rev. 0x%02x)\n", devinfo,
     86 	    PCI_REVISION(pa->pa_class));
     87 
     88 	sc->sc_tag = pa->pa_tag;
     89 }
     90