d974db0ada
This branch was a major cleanup and rototill of many of the various OEA cpu based PPC ports that focused on sharing as much code as possible between the various ports to eliminate near-identical copies of files in every tree. Additionally there is a new PIC system that unifies the interface to interrupt code for all different OEA ppc arches. The work for this branch was done by a variety of people, too long to list here. TODO: bebox still needs work to complete the transition to -renovation. ofppc still needs a bunch of work, which I will be looking at. ev64260 still needs to be renovated amigappc was not attempted. NOTES: pmppc was removed as an arch, and moved to a evbppc target.
87 lines
3.0 KiB
C
87 lines
3.0 KiB
C
/* $NetBSD: pic_i8259.c,v 1.2 2007/10/17 19:56:46 garbled Exp $ */
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/*-
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* Copyright (c) 2007 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Tim Rightnour
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: pic_i8259.c,v 1.2 2007/10/17 19:56:46 garbled Exp $");
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#include <sys/param.h>
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#include <sys/malloc.h>
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#include <sys/kernel.h>
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#include <uvm/uvm_extern.h>
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#include <machine/pio.h>
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#include <machine/intr.h>
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#include <arch/powerpc/pic/picvar.h>
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#include <dev/isa/isareg.h>
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#include <dev/isa/isavar.h>
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void i8259_initialize(void);
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struct pic_ops *
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setup_i8259(void)
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{
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struct i8259_ops *i8259;
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struct pic_ops *pic;
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i8259 = malloc(sizeof(struct i8259_ops), M_DEVBUF, M_NOWAIT);
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KASSERT(i8259 != NULL);
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pic = &i8259->pic;
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pic->pic_numintrs = 16;
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pic->pic_cookie = (void *)NULL;
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pic->pic_enable_irq = i8259_enable_irq;
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pic->pic_reenable_irq = i8259_enable_irq;
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pic->pic_disable_irq = i8259_disable_irq;
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pic->pic_get_irq = i8259_get_irq;
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pic->pic_ack_irq = i8259_ack_irq;
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pic->pic_establish_irq = dummy_pic_establish_intr;
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pic->pic_finish_setup = NULL;
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strcpy(pic->pic_name, "i8259");
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pic_add(pic);
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i8259->pending_events = 0;
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i8259->enable_mask = 0xffffffff;
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i8259->irqs = 0;
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i8259_initialize();
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return pic;
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}
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