pic_i8259.c revision 1.2.4.2
1 1.2.4.2 yamt /* $NetBSD: pic_i8259.c,v 1.2.4.2 2007/10/27 11:28:00 yamt Exp $ */ 2 1.2.4.2 yamt 3 1.2.4.2 yamt /*- 4 1.2.4.2 yamt * Copyright (c) 2007 The NetBSD Foundation, Inc. 5 1.2.4.2 yamt * All rights reserved. 6 1.2.4.2 yamt * 7 1.2.4.2 yamt * This code is derived from software contributed to The NetBSD Foundation 8 1.2.4.2 yamt * by Tim Rightnour 9 1.2.4.2 yamt * 10 1.2.4.2 yamt * Redistribution and use in source and binary forms, with or without 11 1.2.4.2 yamt * modification, are permitted provided that the following conditions 12 1.2.4.2 yamt * are met: 13 1.2.4.2 yamt * 1. Redistributions of source code must retain the above copyright 14 1.2.4.2 yamt * notice, this list of conditions and the following disclaimer. 15 1.2.4.2 yamt * 2. Redistributions in binary form must reproduce the above copyright 16 1.2.4.2 yamt * notice, this list of conditions and the following disclaimer in the 17 1.2.4.2 yamt * documentation and/or other materials provided with the distribution. 18 1.2.4.2 yamt * 3. All advertising materials mentioning features or use of this software 19 1.2.4.2 yamt * must display the following acknowledgement: 20 1.2.4.2 yamt * This product includes software developed by the NetBSD 21 1.2.4.2 yamt * Foundation, Inc. and its contributors. 22 1.2.4.2 yamt * 4. Neither the name of The NetBSD Foundation nor the names of its 23 1.2.4.2 yamt * contributors may be used to endorse or promote products derived 24 1.2.4.2 yamt * from this software without specific prior written permission. 25 1.2.4.2 yamt * 26 1.2.4.2 yamt * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 1.2.4.2 yamt * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 1.2.4.2 yamt * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 1.2.4.2 yamt * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 1.2.4.2 yamt * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 1.2.4.2 yamt * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 1.2.4.2 yamt * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 1.2.4.2 yamt * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 1.2.4.2 yamt * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 1.2.4.2 yamt * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 1.2.4.2 yamt * POSSIBILITY OF SUCH DAMAGE. 37 1.2.4.2 yamt */ 38 1.2.4.2 yamt 39 1.2.4.2 yamt #include <sys/cdefs.h> 40 1.2.4.2 yamt __KERNEL_RCSID(0, "$NetBSD: pic_i8259.c,v 1.2.4.2 2007/10/27 11:28:00 yamt Exp $"); 41 1.2.4.2 yamt 42 1.2.4.2 yamt #include <sys/param.h> 43 1.2.4.2 yamt #include <sys/malloc.h> 44 1.2.4.2 yamt #include <sys/kernel.h> 45 1.2.4.2 yamt 46 1.2.4.2 yamt #include <uvm/uvm_extern.h> 47 1.2.4.2 yamt 48 1.2.4.2 yamt #include <machine/pio.h> 49 1.2.4.2 yamt #include <machine/intr.h> 50 1.2.4.2 yamt 51 1.2.4.2 yamt #include <arch/powerpc/pic/picvar.h> 52 1.2.4.2 yamt 53 1.2.4.2 yamt #include <dev/isa/isareg.h> 54 1.2.4.2 yamt #include <dev/isa/isavar.h> 55 1.2.4.2 yamt 56 1.2.4.2 yamt void i8259_initialize(void); 57 1.2.4.2 yamt 58 1.2.4.2 yamt struct pic_ops * 59 1.2.4.2 yamt setup_i8259(void) 60 1.2.4.2 yamt { 61 1.2.4.2 yamt struct i8259_ops *i8259; 62 1.2.4.2 yamt struct pic_ops *pic; 63 1.2.4.2 yamt 64 1.2.4.2 yamt i8259 = malloc(sizeof(struct i8259_ops), M_DEVBUF, M_NOWAIT); 65 1.2.4.2 yamt KASSERT(i8259 != NULL); 66 1.2.4.2 yamt pic = &i8259->pic; 67 1.2.4.2 yamt 68 1.2.4.2 yamt pic->pic_numintrs = 16; 69 1.2.4.2 yamt pic->pic_cookie = (void *)NULL; 70 1.2.4.2 yamt pic->pic_enable_irq = i8259_enable_irq; 71 1.2.4.2 yamt pic->pic_reenable_irq = i8259_enable_irq; 72 1.2.4.2 yamt pic->pic_disable_irq = i8259_disable_irq; 73 1.2.4.2 yamt pic->pic_get_irq = i8259_get_irq; 74 1.2.4.2 yamt pic->pic_ack_irq = i8259_ack_irq; 75 1.2.4.2 yamt pic->pic_establish_irq = dummy_pic_establish_intr; 76 1.2.4.2 yamt pic->pic_finish_setup = NULL; 77 1.2.4.2 yamt strcpy(pic->pic_name, "i8259"); 78 1.2.4.2 yamt pic_add(pic); 79 1.2.4.2 yamt i8259->pending_events = 0; 80 1.2.4.2 yamt i8259->enable_mask = 0xffffffff; 81 1.2.4.2 yamt i8259->irqs = 0; 82 1.2.4.2 yamt 83 1.2.4.2 yamt i8259_initialize(); 84 1.2.4.2 yamt 85 1.2.4.2 yamt return pic; 86 1.2.4.2 yamt } 87
Indexes created Wed Oct 29 18:09:52 GMT 2025