1/* $NetBSD: pic_cpc700.c,v 1.8 2020/11/21 15:42:20 thorpej Exp $ */ 2 3/*- 4 * Copyright (c) 2007 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Tim Rightnour 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32#include <sys/cdefs.h> 33__KERNEL_RCSID(0, "$NetBSD: pic_cpc700.c,v 1.8 2020/11/21 15:42:20 thorpej Exp $"); 34 35#include <sys/param.h> 36#include <sys/kmem.h> 37#include <sys/kernel.h> 38 39#include <machine/pio.h> 40#include <machine/intr.h> 41#include <sys/bus.h> 42 43#include <arch/powerpc/pic/picvar.h> 44 45#include <dev/ic/cpc700reg.h> 46#include <dev/ic/cpc700uic.h> 47 48static void cpc700_pic_enable_irq(struct pic_ops *, int, int); 49static void cpc700_pic_disable_irq(struct pic_ops *, int); 50static int cpc700_get_irq(struct pic_ops *, int); 51static void cpc700_ack_irq(struct pic_ops *, int); 52 53struct cpc700_ops { 54 struct pic_ops pic; 55}; 56 57struct pic_ops * 58setup_cpc700(void) 59{ 60 struct cpc700_ops *cpc700; 61 struct pic_ops *pic; 62 63 cpc700 = kmem_alloc(sizeof(struct cpc700_ops), KM_SLEEP); 64 pic = &cpc700->pic; 65 66 pic->pic_numintrs = 32; 67 pic->pic_cookie = (void *)NULL; 68 pic->pic_enable_irq = cpc700_pic_enable_irq; 69 pic->pic_reenable_irq = cpc700_pic_enable_irq; 70 pic->pic_disable_irq = cpc700_pic_disable_irq; 71 pic->pic_get_irq = cpc700_get_irq; 72 pic->pic_ack_irq = cpc700_ack_irq; 73 pic->pic_establish_irq = dummy_pic_establish_intr; 74 strcpy(pic->pic_name, "cpc700"); 75 pic_add(pic); 76 77 return pic; 78} 79 80static void 81cpc700_pic_enable_irq(struct pic_ops *pic, int irq, int type) 82{ 83 cpc700_enable_irq(irq); 84} 85 86static void 87cpc700_pic_disable_irq(struct pic_ops *pic, int irq) 88{ 89 cpc700_disable_irq(irq); 90} 91 92static int 93cpc700_get_irq(struct pic_ops *pic, int dummy) 94{ 95 int irq; 96 97 irq = cpc700_read_irq(); 98 if (irq < 0) 99 return 255; 100 return irq; 101} 102 103static void 104cpc700_ack_irq(struct pic_ops *pic, int irq) 105{ 106 cpc700_eoi(irq); 107} 108