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      1 /*	$NetBSD: isa_machdep_common.c,v 1.7 2011/06/18 06:41:43 matt Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2007 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Tim Rightnour
      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 #include <sys/cdefs.h>
     33 __KERNEL_RCSID(0, "$NetBSD: isa_machdep_common.c,v 1.7 2011/06/18 06:41:43 matt Exp $");
     34 
     35 #include <sys/param.h>
     36 #include <sys/systm.h>
     37 #include <sys/syslog.h>
     38 #include <sys/device.h>
     39 #include <sys/intr.h>
     40 
     41 #include <machine/pio.h>
     42 
     43 #include <dev/isa/isareg.h>
     44 #include <dev/isa/isavar.h>
     45 
     46 #define	IO_ELCR1	0x4d0
     47 #define	IO_ELCR2	0x4d1
     48 
     49 const struct evcnt *
     50 genppc_isa_intr_evcnt(isa_chipset_tag_t ic, int irq)
     51 {
     52 
     53 	/* XXX for now, no evcnt parent reported */
     54 	return NULL;
     55 }
     56 
     57 /*
     58  * Set up an interrupt handler to start being called.
     59  */
     60 void *
     61 genppc_isa_intr_establish(isa_chipset_tag_t ic, int irq, int type, int level,
     62     int (*ih_fun)(void *), void *ih_arg)
     63 {
     64 
     65 	return (void *)intr_establish(irq, type, level, ih_fun, ih_arg);
     66 }
     67 
     68 /*
     69  * Deregister an interrupt handler.
     70  */
     71 void
     72 genppc_isa_intr_disestablish(isa_chipset_tag_t ic, void *arg)
     73 {
     74 
     75 	intr_disestablish(arg);
     76 }
     77 
     78 void
     79 genppc_isa_attach_hook(device_t parent, device_t self,
     80     struct isabus_attach_args *iba)
     81 {
     82 
     83 	/* Nothing to do. */
     84 }
     85 
     86 void
     87 genppc_isa_detach_hook(isa_chipset_tag_t ic, device_t self)
     88 {
     89 
     90 	/* Nothing to do. */
     91 }
     92