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      1 /*	$NetBSD: pciide_machdep.c,v 1.17 2017/11/04 15:24:42 cherry 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  * PCI IDE controller driver (i386 machine-dependent portion).
     35  *
     36  * Author: Christopher G. Demetriou, March 2, 1998 (derived from NetBSD
     37  * sys/dev/pci/ppb.c, revision 1.16).
     38  *
     39  * See "PCI IDE Controller Specification, Revision 1.0 3/4/94" from the
     40  * PCI SIG.
     41  */
     42 
     43 #include <sys/cdefs.h>
     44 __KERNEL_RCSID(0, "$NetBSD: pciide_machdep.c,v 1.17 2017/11/04 15:24:42 cherry Exp $");
     45 
     46 #include <sys/param.h>
     47 #include <sys/systm.h>
     48 #include <sys/device.h>
     49 
     50 #include <dev/pci/pcireg.h>
     51 #include <dev/pci/pcivar.h>
     52 #include <dev/pci/pciidereg.h>
     53 #include <dev/pci/pciidevar.h>
     54 
     55 #include <dev/isa/isavar.h>
     56 
     57 #include "ioapic.h"
     58 
     59 #if NIOAPIC > 0
     60 #include <machine/i82093var.h>
     61 #include <machine/mpbiosvar.h>
     62 #endif
     63 
     64 #ifdef __HAVE_PCIIDE_MACHDEP_COMPAT_INTR_ESTABLISH
     65 void *
     66 pciide_machdep_compat_intr_establish(device_t dev,
     67     const struct pci_attach_args *pa, int chan, int (*func)(void *),
     68     void *arg)
     69 {
     70 	int irq;
     71 	void *cookie;
     72 #if NIOAPIC > 0
     73 	intr_handle_t mpih;
     74 	char buf[PCI_INTRSTR_LEN];
     75 #endif
     76 	char intr_xname[64];
     77 
     78 	snprintf(intr_xname, sizeof(intr_xname), "%s %s",
     79 	    device_xname(dev), PCIIDE_CHANNEL_NAME(chan));
     80 
     81 	irq = PCIIDE_COMPAT_IRQ(chan);
     82 	cookie = isa_intr_establish_xname(NULL, irq, IST_EDGE, IPL_BIO,
     83 	    func, arg, intr_xname);
     84 	if (cookie == NULL)
     85 		return NULL;
     86 #if NIOAPIC > 0
     87 	if (mp_busses != NULL &&
     88 	    (intr_find_mpmapping(mp_isa_bus, irq, &mpih) == 0 ||
     89 	     intr_find_mpmapping(mp_eisa_bus, irq, &mpih) == 0)) {
     90 		mpih |= irq;
     91 		aprint_normal_dev(dev, "%s channel interrupting at %s\n",
     92 		    PCIIDE_CHANNEL_NAME(chan),
     93 		    intr_string(mpih, buf, sizeof(buf)));
     94 	} else
     95 #endif
     96 	aprint_normal_dev(dev, "%s channel interrupting at irq %d\n",
     97 	    PCIIDE_CHANNEL_NAME(chan), irq);
     98 	return cookie;
     99 }
    100 #endif /* __HAVE_PCIIDE_MACHDEP_COMPAT_INTR_ESTABLISH */
    101 
    102 #ifdef __HAVE_PCIIDE_MACHDEP_COMPAT_INTR_DISESTABLISH
    103 void
    104 pciide_machdep_compat_intr_disestablish(device_t dev, pci_chipset_tag_t pc,
    105     int chan, void *cookie)
    106 {
    107 	isa_intr_disestablish(NULL, cookie);
    108 	return;
    109 }
    110 #endif /* __HAVE_PCIIDE_MACHDEP_COMPAT_INTR_DISESTABLISH */
    111