1 /* $NetBSD: pic_cpc700.c,v 1.4 2008/04/28 20:23:17 martin 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 1.4 2008/04/28 20:23:17 martin Exp $"); 34 35 #include <sys/param.h> 36 #include <sys/malloc.h> 37 #include <sys/kernel.h> 38 39 #include <uvm/uvm_extern.h> 40 41 #include <machine/pio.h> 42 #include <machine/intr.h> 43 #include <machine/bus.h> 44 45 #include <arch/powerpc/pic/picvar.h> 46 47 #include <dev/ic/cpc700reg.h> 48 #include <dev/ic/cpc700uic.h> 49 50 static void cpc700_pic_enable_irq(struct pic_ops *, int, int); 51 static void cpc700_pic_disable_irq(struct pic_ops *, int); 52 static int cpc700_get_irq(struct pic_ops *, int); 53 static void cpc700_ack_irq(struct pic_ops *, int); 54 55 struct cpc700_ops { 56 struct pic_ops pic; 57 }; 58 59 struct pic_ops * 60 setup_cpc700(void) 61 { 62 struct cpc700_ops *cpc700; 63 struct pic_ops *pic; 64 65 cpc700 = malloc(sizeof(struct cpc700_ops), M_DEVBUF, M_NOWAIT); 66 KASSERT(cpc700 != NULL); 67 pic = &cpc700->pic; 68 69 pic->pic_numintrs = 32; 70 pic->pic_cookie = (void *)NULL; 71 pic->pic_enable_irq = cpc700_pic_enable_irq; 72 pic->pic_reenable_irq = cpc700_pic_enable_irq; 73 pic->pic_disable_irq = cpc700_pic_disable_irq; 74 pic->pic_get_irq = cpc700_get_irq; 75 pic->pic_ack_irq = cpc700_ack_irq; 76 pic->pic_establish_irq = dummy_pic_establish_intr; 77 strcpy(pic->pic_name, "cpc700"); 78 pic_add(pic); 79 80 return pic; 81 } 82 83 static void 84 cpc700_pic_enable_irq(struct pic_ops *pic, int irq, int type) 85 { 86 cpc700_enable_irq(irq); 87 } 88 89 static void 90 cpc700_pic_disable_irq(struct pic_ops *pic, int irq) 91 { 92 cpc700_disable_irq(irq); 93 } 94 95 static int 96 cpc700_get_irq(struct pic_ops *pic, int dummy) 97 { 98 int irq; 99 100 irq = cpc700_read_irq(); 101 if (irq < 0) 102 return 255; 103 return irq; 104 } 105 106 static void 107 cpc700_ack_irq(struct pic_ops *pic, int irq) 108 { 109 cpc700_eoi(irq); 110 } 111