1/* $NetBSD: pci_alphabook1.c,v 1.20 2021/06/25 13:38:21 thorpej Exp $ */ 2 3/*- 4 * Copyright (c) 1998 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, 9 * NASA Ames Research Center. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 30 * POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33/* 34 * Copyright (c) 1995, 1996 Carnegie-Mellon University. 35 * All rights reserved. 36 * 37 * Authors: Jeffrey Hsu and Chris G. Demetriou 38 * 39 * Permission to use, copy, modify and distribute this software and 40 * its documentation is hereby granted, provided that both the copyright 41 * notice and this permission notice appear in all copies of the 42 * software, derivative works or modified versions, and any portions 43 * thereof, and that both notices appear in supporting documentation. 44 * 45 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 46 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND 47 * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 48 * 49 * Carnegie Mellon requests users of this software to return to 50 * 51 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU 52 * School of Computer Science 53 * Carnegie Mellon University 54 * Pittsburgh PA 15213-3890 55 * 56 * any improvements or extensions that they make and grant Carnegie the 57 * rights to redistribute these changes. 58 */ 59 60#include <sys/cdefs.h> /* RCS ID & Copyright macro defns */ 61 62__KERNEL_RCSID(0, "$NetBSD: pci_alphabook1.c,v 1.20 2021/06/25 13:38:21 thorpej Exp $"); 63 64#include <sys/types.h> 65#include <sys/param.h> 66#include <sys/time.h> 67#include <sys/systm.h> 68#include <sys/errno.h> 69#include <sys/device.h> 70 71#include <machine/intr.h> 72#include <machine/rpb.h> 73 74#include <dev/isa/isavar.h> 75#include <dev/pci/pcireg.h> 76#include <dev/pci/pcivar.h> 77 78#include <alpha/pci/lcavar.h> 79 80#include <alpha/pci/siovar.h> 81#include <alpha/pci/sioreg.h> 82 83#include "sio.h" 84 85static int dec_alphabook1_intr_map(const struct pci_attach_args *, 86 pci_intr_handle_t *); 87 88static void 89pci_alphabook1_pickintr(void *core, bus_space_tag_t iot, bus_space_tag_t memt, 90 pci_chipset_tag_t pc) 91{ 92 93 pc->pc_intr_v = core; 94 pc->pc_intr_map = dec_alphabook1_intr_map; 95 pc->pc_intr_string = sio_pci_intr_string; 96 pc->pc_intr_evcnt = sio_pci_intr_evcnt; 97 pc->pc_intr_establish = sio_pci_intr_establish; 98 pc->pc_intr_disestablish = sio_pci_intr_disestablish; 99 100 /* Not supported on AlphaBook. */ 101 pc->pc_pciide_compat_intr_establish = NULL; 102 103#if NSIO 104 sio_intr_setup(pc, iot); 105#else 106 panic("pci_alphabook1_pickintr: no I/O interrupt handler (no sio)"); 107#endif 108} 109ALPHA_PCI_INTR_INIT(ST_ALPHABOOK1, pci_alphabook1_pickintr) 110 111int 112dec_alphabook1_intr_map(const struct pci_attach_args *pa, 113 pci_intr_handle_t *ihp) 114{ 115 pcitag_t bustag = pa->pa_intrtag; 116 int buspin = pa->pa_intrpin; 117 pci_chipset_tag_t pc = pa->pa_pc; 118 int device, irq; 119 120 if (buspin == 0) { 121 /* No IRQ used. */ 122 return 1; 123 } 124 if (buspin < 0 || buspin > 4) { 125 printf("dec_alphabook1_intr_map: bad interrupt pin %d\n", 126 buspin); 127 return 1; 128 } 129 130 pci_decompose_tag(pc, bustag, NULL, &device, NULL); 131 132 /* 133 * There is only one interrupting PCI device on the AlphaBook: an 134 * NCR SCSI at device 6. Devices 7 and 8 are the SIO and a 135 * Cirrus PD6729 PCMCIA controller. There are no option slots 136 * available. 137 * 138 * NOTE! Apparently, there was a later AlphaBook which uses 139 * a different interrupt scheme, and has a built-in Tulip Ethernet 140 * interface! We do not handle that here! 141 */ 142 143 switch (device) { 144 case 6: /* NCR SCSI */ 145 irq = 14; 146 break; 147 148 default: 149 printf("dec_alphabook1_intr_map: weird device number %d\n", 150 device); 151 return 1; 152 } 153 154 alpha_pci_intr_handle_init(ihp, irq, 0); 155 return (0); 156} 157