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isa_machdep_common.c revision 1.2 
      1 /*	$NetBSD: isa_machdep_common.c,v 1.2 2007/10/17 19:56:42 garbled 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  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *        This product includes software developed by the NetBSD
     21  *        Foundation, Inc. and its contributors.
     22  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23  *    contributors may be used to endorse or promote products derived
     24  *    from this software without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36  * POSSIBILITY OF SUCH DAMAGE.
     37  */
     38 
     39 #include <sys/cdefs.h>
     40 __KERNEL_RCSID(0, "$NetBSD: isa_machdep_common.c,v 1.2 2007/10/17 19:56:42 garbled Exp $");
     41 
     42 #include <sys/param.h>
     43 #include <sys/systm.h>
     44 #include <sys/syslog.h>
     45 #include <sys/device.h>
     46 
     47 #include <machine/pio.h>
     48 #include <machine/intr.h>
     49 
     50 #include <dev/isa/isareg.h>
     51 #include <dev/isa/isavar.h>
     52 
     53 #define	IO_ELCR1	0x4d0
     54 #define	IO_ELCR2	0x4d1
     55 
     56 const struct evcnt *
     57 genppc_isa_intr_evcnt(isa_chipset_tag_t ic, int irq)
     58 {
     59 
     60 	/* XXX for now, no evcnt parent reported */
     61 	return NULL;
     62 }
     63 
     64 /*
     65  * Set up an interrupt handler to start being called.
     66  */
     67 void *
     68 genppc_isa_intr_establish(isa_chipset_tag_t ic, int irq, int type, int level,
     69     int (*ih_fun)(void *), void *ih_arg)
     70 {
     71 
     72 	return (void *)intr_establish(irq, type, level, ih_fun, ih_arg);
     73 }
     74 
     75 /*
     76  * Deregister an interrupt handler.
     77  */
     78 void
     79 genppc_isa_intr_disestablish(isa_chipset_tag_t ic, void *arg)
     80 {
     81 
     82 	intr_disestablish(arg);
     83 }
     84 
     85 void
     86 genppc_isa_attach_hook(struct device *parent, struct device *self,
     87     struct isabus_attach_args *iba)
     88 {
     89 
     90 	/* Nothing to do. */
     91 }
     92