powerpc/pic/pic_i8259.c

1.6     matt /* $NetBSD: pic_i8259.c,v 1.6 2012/02/01 09:54:03 matt Exp $ */
1.2  garbled
1.2  garbled /*-
1.2  garbled  * Copyright (c) 2007 The NetBSD Foundation, Inc.
1.2  garbled  * All rights reserved.
1.2  garbled  *
1.2  garbled  * This code is derived from software contributed to The NetBSD Foundation
1.2  garbled  * by Tim Rightnour
1.2  garbled  *
1.2  garbled  * Redistribution and use in source and binary forms, with or without
1.2  garbled  * modification, are permitted provided that the following conditions
1.2  garbled  * are met:
1.2  garbled  * 1. Redistributions of source code must retain the above copyright
1.2  garbled  *    notice, this list of conditions and the following disclaimer.
1.2  garbled  * 2. Redistributions in binary form must reproduce the above copyright
1.2  garbled  *    notice, this list of conditions and the following disclaimer in the
1.2  garbled  *    documentation and/or other materials provided with the distribution.
1.2  garbled  *
1.2  garbled  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
1.2  garbled  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
1.2  garbled  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
1.2  garbled  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
1.2  garbled  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
1.2  garbled  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
1.2  garbled  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
1.2  garbled  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
1.2  garbled  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
1.2  garbled  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
1.2  garbled  * POSSIBILITY OF SUCH DAMAGE.
1.2  garbled  */
1.2  garbled
1.2  garbled #include <sys/cdefs.h>
1.6     matt __KERNEL_RCSID(0, "$NetBSD: pic_i8259.c,v 1.6 2012/02/01 09:54:03 matt Exp $");
1.2  garbled
1.2  garbled #include <sys/param.h>
1.6     matt #include <sys/kmem.h>
1.2  garbled #include <sys/kernel.h>
1.4     matt #include <sys/intr.h>
1.2  garbled
1.2  garbled #include <uvm/uvm_extern.h>
1.2  garbled
1.2  garbled #include <machine/pio.h>
1.2  garbled
1.5     matt #include <powerpc/pic/picvar.h>
1.2  garbled
1.2  garbled #include <dev/isa/isareg.h>
1.2  garbled #include <dev/isa/isavar.h>
1.2  garbled
1.2  garbled void i8259_initialize(void);
1.2  garbled
1.2  garbled struct pic_ops *
1.2  garbled setup_i8259(void)
1.2  garbled {
1.2  garbled 	struct i8259_ops *i8259;
1.2  garbled 	struct pic_ops *pic;
1.2  garbled
1.6     matt 	i8259 = kmem_alloc(sizeof(*i8259), KM_SLEEP);
1.2  garbled 	KASSERT(i8259 != NULL);
1.2  garbled 	pic = &i8259->pic;
1.2  garbled
1.2  garbled 	pic->pic_numintrs = 16;
1.2  garbled 	pic->pic_cookie = (void *)NULL;
1.2  garbled 	pic->pic_enable_irq = i8259_enable_irq;
1.2  garbled 	pic->pic_reenable_irq = i8259_enable_irq;
1.2  garbled 	pic->pic_disable_irq = i8259_disable_irq;
1.2  garbled 	pic->pic_get_irq = i8259_get_irq;
1.2  garbled 	pic->pic_ack_irq = i8259_ack_irq;
1.2  garbled 	pic->pic_establish_irq = dummy_pic_establish_intr;
1.2  garbled 	pic->pic_finish_setup = NULL;
1.2  garbled 	strcpy(pic->pic_name, "i8259");
1.2  garbled 	pic_add(pic);
1.2  garbled 	i8259->pending_events = 0;
1.2  garbled 	i8259->enable_mask = 0xffffffff;
1.2  garbled 	i8259->irqs = 0;
1.2  garbled
1.2  garbled 	i8259_initialize();
1.2  garbled
1.2  garbled 	return pic;
1.2  garbled }