1 /* $NetBSD: pic_cpc700.c,v 1.3 2008/04/24 23:22:24 alc 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 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 #include <sys/cdefs.h> 40 __KERNEL_RCSID(0, "$NetBSD: pic_cpc700.c,v 1.3 2008/04/24 23:22:24 alc Exp $"); 41 42 #include <sys/param.h> 43 #include <sys/malloc.h> 44 #include <sys/kernel.h> 45 46 #include <uvm/uvm_extern.h> 47 48 #include <machine/pio.h> 49 #include <machine/intr.h> 50 #include <machine/bus.h> 51 52 #include <arch/powerpc/pic/picvar.h> 53 54 #include <dev/ic/cpc700reg.h> 55 #include <dev/ic/cpc700uic.h> 56 57 static void cpc700_pic_enable_irq(struct pic_ops *, int, int); 58 static void cpc700_pic_disable_irq(struct pic_ops *, int); 59 static int cpc700_get_irq(struct pic_ops *, int); 60 static void cpc700_ack_irq(struct pic_ops *, int); 61 62 struct cpc700_ops { 63 struct pic_ops pic; 64 }; 65 66 struct pic_ops * 67 setup_cpc700(void) 68 { 69 struct cpc700_ops *cpc700; 70 struct pic_ops *pic; 71 72 cpc700 = malloc(sizeof(struct cpc700_ops), M_DEVBUF, M_NOWAIT); 73 KASSERT(cpc700 != NULL); 74 pic = &cpc700->pic; 75 76 pic->pic_numintrs = 32; 77 pic->pic_cookie = (void *)NULL; 78 pic->pic_enable_irq = cpc700_pic_enable_irq; 79 pic->pic_reenable_irq = cpc700_pic_enable_irq; 80 pic->pic_disable_irq = cpc700_pic_disable_irq; 81 pic->pic_get_irq = cpc700_get_irq; 82 pic->pic_ack_irq = cpc700_ack_irq; 83 pic->pic_establish_irq = dummy_pic_establish_intr; 84 strcpy(pic->pic_name, "cpc700"); 85 pic_add(pic); 86 87 return pic; 88 } 89 90 static void 91 cpc700_pic_enable_irq(struct pic_ops *pic, int irq, int type) 92 { 93 cpc700_enable_irq(irq); 94 } 95 96 static void 97 cpc700_pic_disable_irq(struct pic_ops *pic, int irq) 98 { 99 cpc700_disable_irq(irq); 100 } 101 102 static int 103 cpc700_get_irq(struct pic_ops *pic, int dummy) 104 { 105 int irq; 106 107 irq = cpc700_read_irq(); 108 if (irq < 0) 109 return 255; 110 return irq; 111 } 112 113 static void 114 cpc700_ack_irq(struct pic_ops *pic, int irq) 115 { 116 cpc700_eoi(irq); 117 } 118