1 /* $NetBSD: pic_cpc700.c,v 1.5 2010/12/20 00:25:32 matt 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 1.5 2010/12/20 00:25:32 matt Exp $"); 34 35 #include <sys/param.h> 36 #include <sys/malloc.h> 37 #include <sys/kernel.h> 38 39 #include <machine/pio.h> 40 #include <machine/intr.h> 41 #include <machine/bus.h> 42 43 #include <arch/powerpc/pic/picvar.h> 44 45 #include <dev/ic/cpc700reg.h> 46 #include <dev/ic/cpc700uic.h> 47 48 static void cpc700_pic_enable_irq(struct pic_ops *, int, int); 49 static void cpc700_pic_disable_irq(struct pic_ops *, int); 50 static int cpc700_get_irq(struct pic_ops *, int); 51 static void cpc700_ack_irq(struct pic_ops *, int); 52 53 struct cpc700_ops { 54 struct pic_ops pic; 55 }; 56 57 struct pic_ops * 58 setup_cpc700(void) 59 { 60 struct cpc700_ops *cpc700; 61 struct pic_ops *pic; 62 63 cpc700 = malloc(sizeof(struct cpc700_ops), M_DEVBUF, M_NOWAIT); 64 KASSERT(cpc700 != NULL); 65 pic = &cpc700->pic; 66 67 pic->pic_numintrs = 32; 68 pic->pic_cookie = (void *)NULL; 69 pic->pic_enable_irq = cpc700_pic_enable_irq; 70 pic->pic_reenable_irq = cpc700_pic_enable_irq; 71 pic->pic_disable_irq = cpc700_pic_disable_irq; 72 pic->pic_get_irq = cpc700_get_irq; 73 pic->pic_ack_irq = cpc700_ack_irq; 74 pic->pic_establish_irq = dummy_pic_establish_intr; 75 strcpy(pic->pic_name, "cpc700"); 76 pic_add(pic); 77 78 return pic; 79 } 80 81 static void 82 cpc700_pic_enable_irq(struct pic_ops *pic, int irq, int type) 83 { 84 cpc700_enable_irq(irq); 85 } 86 87 static void 88 cpc700_pic_disable_irq(struct pic_ops *pic, int irq) 89 { 90 cpc700_disable_irq(irq); 91 } 92 93 static int 94 cpc700_get_irq(struct pic_ops *pic, int dummy) 95 { 96 int irq; 97 98 irq = cpc700_read_irq(); 99 if (irq < 0) 100 return 255; 101 return irq; 102 } 103 104 static void 105 cpc700_ack_irq(struct pic_ops *pic, int irq) 106 { 107 cpc700_eoi(irq); 108 } 109