pic_i8259.c revision 1.5.2.1
1 1.5.2.1 yamt /* $NetBSD: pic_i8259.c,v 1.5.2.1 2012/04/17 00:06:48 yamt Exp $ */ 2 1.2 garbled 3 1.2 garbled /*- 4 1.2 garbled * Copyright (c) 2007 The NetBSD Foundation, Inc. 5 1.2 garbled * All rights reserved. 6 1.2 garbled * 7 1.2 garbled * This code is derived from software contributed to The NetBSD Foundation 8 1.2 garbled * by Tim Rightnour 9 1.2 garbled * 10 1.2 garbled * Redistribution and use in source and binary forms, with or without 11 1.2 garbled * modification, are permitted provided that the following conditions 12 1.2 garbled * are met: 13 1.2 garbled * 1. Redistributions of source code must retain the above copyright 14 1.2 garbled * notice, this list of conditions and the following disclaimer. 15 1.2 garbled * 2. Redistributions in binary form must reproduce the above copyright 16 1.2 garbled * notice, this list of conditions and the following disclaimer in the 17 1.2 garbled * documentation and/or other materials provided with the distribution. 18 1.2 garbled * 19 1.2 garbled * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 1.2 garbled * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 1.2 garbled * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 1.2 garbled * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 1.2 garbled * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 1.2 garbled * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 1.2 garbled * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 1.2 garbled * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 1.2 garbled * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 1.2 garbled * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 1.2 garbled * POSSIBILITY OF SUCH DAMAGE. 30 1.2 garbled */ 31 1.2 garbled 32 1.2 garbled #include <sys/cdefs.h> 33 1.5.2.1 yamt __KERNEL_RCSID(0, "$NetBSD: pic_i8259.c,v 1.5.2.1 2012/04/17 00:06:48 yamt Exp $"); 34 1.2 garbled 35 1.2 garbled #include <sys/param.h> 36 1.5.2.1 yamt #include <sys/kmem.h> 37 1.2 garbled #include <sys/kernel.h> 38 1.4 matt #include <sys/intr.h> 39 1.2 garbled 40 1.2 garbled #include <uvm/uvm_extern.h> 41 1.2 garbled 42 1.2 garbled #include <machine/pio.h> 43 1.2 garbled 44 1.5 matt #include <powerpc/pic/picvar.h> 45 1.2 garbled 46 1.2 garbled #include <dev/isa/isareg.h> 47 1.2 garbled #include <dev/isa/isavar.h> 48 1.2 garbled 49 1.2 garbled void i8259_initialize(void); 50 1.2 garbled 51 1.2 garbled struct pic_ops * 52 1.2 garbled setup_i8259(void) 53 1.2 garbled { 54 1.2 garbled struct i8259_ops *i8259; 55 1.2 garbled struct pic_ops *pic; 56 1.2 garbled 57 1.5.2.1 yamt i8259 = kmem_alloc(sizeof(*i8259), KM_SLEEP); 58 1.2 garbled KASSERT(i8259 != NULL); 59 1.2 garbled pic = &i8259->pic; 60 1.2 garbled 61 1.2 garbled pic->pic_numintrs = 16; 62 1.2 garbled pic->pic_cookie = (void *)NULL; 63 1.2 garbled pic->pic_enable_irq = i8259_enable_irq; 64 1.2 garbled pic->pic_reenable_irq = i8259_enable_irq; 65 1.2 garbled pic->pic_disable_irq = i8259_disable_irq; 66 1.2 garbled pic->pic_get_irq = i8259_get_irq; 67 1.2 garbled pic->pic_ack_irq = i8259_ack_irq; 68 1.2 garbled pic->pic_establish_irq = dummy_pic_establish_intr; 69 1.2 garbled pic->pic_finish_setup = NULL; 70 1.2 garbled strcpy(pic->pic_name, "i8259"); 71 1.2 garbled pic_add(pic); 72 1.2 garbled i8259->pending_events = 0; 73 1.2 garbled i8259->enable_mask = 0xffffffff; 74 1.2 garbled i8259->irqs = 0; 75 1.2 garbled 76 1.2 garbled i8259_initialize(); 77 1.2 garbled 78 1.2 garbled return pic; 79 1.2 garbled } 80
Indexes created Mon Oct 27 02:09:54 GMT 2025