/* $NetBSD: pic_i8259.c,v 1.7 2017/06/01 02:45:07 chs Exp $ */

/*-
* Copyright (c) 2007 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Tim Rightnour
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
*    notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
*    notice, this list of conditions and the following disclaimer in the
*    documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/

#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: pic_i8259.c,v 1.7 2017/06/01 02:45:07 chs Exp $");

#include <sys/param.h>
#include <sys/kmem.h>
#include <sys/kernel.h>
#include <sys/intr.h>

#include <uvm/uvm_extern.h>

#include <machine/pio.h>

#include <powerpc/pic/picvar.h>

#include <dev/isa/isareg.h>
#include <dev/isa/isavar.h>

void i8259_initialize(void);

struct pic_ops *
setup_i8259(void)
{
       struct i8259_ops *i8259;
       struct pic_ops *pic;

       i8259 = kmem_alloc(sizeof(*i8259), KM_SLEEP);
       pic = &i8259->pic;

       pic->pic_numintrs = 16;
       pic->pic_cookie = (void *)NULL;
       pic->pic_enable_irq = i8259_enable_irq;
       pic->pic_reenable_irq = i8259_enable_irq;
       pic->pic_disable_irq = i8259_disable_irq;
       pic->pic_get_irq = i8259_get_irq;
       pic->pic_ack_irq = i8259_ack_irq;
       pic->pic_establish_irq = dummy_pic_establish_intr;
       pic->pic_finish_setup = NULL;
       strcpy(pic->pic_name, "i8259");
       pic_add(pic);
       i8259->pending_events = 0;
       i8259->enable_mask = 0xffffffff;
       i8259->irqs = 0;

       i8259_initialize();

       return pic;
}