1 /* $NetBSD: pci_alphabook1.c,v 1.9 2008/04/28 20:23:11 martin 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 1.9 2008/04/28 20:23:11 martin 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 <uvm/uvm_extern.h> 72 73 #include <machine/autoconf.h> 74 #include <machine/bus.h> 75 #include <machine/intr.h> 76 77 #include <dev/isa/isavar.h> 78 #include <dev/pci/pcireg.h> 79 #include <dev/pci/pcivar.h> 80 81 #include <alpha/pci/lcavar.h> 82 83 #include <alpha/pci/pci_alphabook1.h> 84 #include <alpha/pci/siovar.h> 85 #include <alpha/pci/sioreg.h> 86 87 #include "sio.h" 88 89 int dec_alphabook1_intr_map __P((struct pci_attach_args *, pci_intr_handle_t *)); 90 const char *dec_alphabook1_intr_string __P((void *, pci_intr_handle_t)); 91 const struct evcnt *dec_alphabook1_intr_evcnt __P((void *, pci_intr_handle_t)); 92 void *dec_alphabook1_intr_establish __P((void *, pci_intr_handle_t, 93 int, int (*func)(void *), void *)); 94 void dec_alphabook1_intr_disestablish __P((void *, void *)); 95 96 #define LCA_SIO_DEVICE 7 /* XXX */ 97 98 void 99 pci_alphabook1_pickintr(lcp) 100 struct lca_config *lcp; 101 { 102 bus_space_tag_t iot = &lcp->lc_iot; 103 pci_chipset_tag_t pc = &lcp->lc_pc; 104 pcireg_t sioclass; 105 int sioII; 106 107 /* XXX MAGIC NUMBER */ 108 sioclass = pci_conf_read(pc, pci_make_tag(pc, 0, LCA_SIO_DEVICE, 0), 109 PCI_CLASS_REG); 110 sioII = (sioclass & 0xff) >= 3; 111 112 if (!sioII) 113 printf("WARNING: SIO NOT SIO II... NO BETS...\n"); 114 115 pc->pc_intr_v = lcp; 116 pc->pc_intr_map = dec_alphabook1_intr_map; 117 pc->pc_intr_string = dec_alphabook1_intr_string; 118 pc->pc_intr_evcnt = dec_alphabook1_intr_evcnt; 119 pc->pc_intr_establish = dec_alphabook1_intr_establish; 120 pc->pc_intr_disestablish = dec_alphabook1_intr_disestablish; 121 122 /* Not supported on AlphaBook. */ 123 pc->pc_pciide_compat_intr_establish = NULL; 124 125 #if NSIO 126 sio_intr_setup(pc, iot); 127 #else 128 panic("pci_alphabook1_pickintr: no I/O interrupt handler (no sio)"); 129 #endif 130 } 131 132 int 133 dec_alphabook1_intr_map(pa, ihp) 134 struct pci_attach_args *pa; 135 pci_intr_handle_t *ihp; 136 { 137 pcitag_t bustag = pa->pa_intrtag; 138 int buspin = pa->pa_intrpin; 139 pci_chipset_tag_t pc = pa->pa_pc; 140 int device, irq; 141 142 if (buspin == 0) { 143 /* No IRQ used. */ 144 return 1; 145 } 146 if (buspin > 4) { 147 printf("dec_alphabook1_intr_map: bad interrupt pin %d\n", 148 buspin); 149 return 1; 150 } 151 152 pci_decompose_tag(pc, bustag, NULL, &device, NULL); 153 154 /* 155 * There is only one interrupting PCI device on the AlphaBook: an 156 * NCR SCSI at device 6. Devices 7 and 8 are the SIO and a 157 * Cirrus PD6729 PCMCIA controller. There are no option slots 158 * available. 159 * 160 * NOTE! Apparently, there was a later AlphaBook which uses 161 * a different interrupt scheme, and has a built-in Tulip Ethernet 162 * interface! We do not handle that here! 163 */ 164 165 switch (device) { 166 case 6: /* NCR SCSI */ 167 irq = 14; 168 break; 169 170 default: 171 printf("dec_alphabook1_intr_map: weird device number %d\n", 172 device); 173 return 1; 174 } 175 176 *ihp = irq; 177 return (0); 178 } 179 180 const char * 181 dec_alphabook1_intr_string(lcv, ih) 182 void *lcv; 183 pci_intr_handle_t ih; 184 { 185 #if 0 186 struct lca_config *lcp = lcv; 187 #endif 188 189 return sio_intr_string(NULL /*XXX*/, ih); 190 } 191 192 const struct evcnt * 193 dec_alphabook1_intr_evcnt(lcv, ih) 194 void *lcv; 195 pci_intr_handle_t ih; 196 { 197 #if 0 198 struct lca_config *lcp = lcv; 199 #endif 200 201 return sio_intr_evcnt(NULL /*XXX*/, ih); 202 } 203 204 void * 205 dec_alphabook1_intr_establish(lcv, ih, level, func, arg) 206 void *lcv, *arg; 207 pci_intr_handle_t ih; 208 int level; 209 int (*func) __P((void *)); 210 { 211 #if 0 212 struct lca_config *lcp = lcv; 213 #endif 214 215 return sio_intr_establish(NULL /*XXX*/, ih, IST_LEVEL, level, func, 216 arg); 217 } 218 219 void 220 dec_alphabook1_intr_disestablish(lcv, cookie) 221 void *lcv, *cookie; 222 { 223 #if 0 224 struct lca_config *lcp = lcv; 225 #endif 226 227 sio_intr_disestablish(NULL /*XXX*/, cookie); 228 } 229