1 /* $NetBSD: pci_alphabook1.c,v 1.17 2014/03/21 16:39:29 christos 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 1.17 2014/03/21 16:39:29 christos 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 73 #include <dev/isa/isavar.h> 74 #include <dev/pci/pcireg.h> 75 #include <dev/pci/pcivar.h> 76 77 #include <alpha/pci/lcavar.h> 78 79 #include <alpha/pci/pci_alphabook1.h> 80 #include <alpha/pci/siovar.h> 81 #include <alpha/pci/sioreg.h> 82 83 #include "sio.h" 84 85 int dec_alphabook1_intr_map(const struct pci_attach_args *, 86 pci_intr_handle_t *); 87 const char *dec_alphabook1_intr_string(void *, pci_intr_handle_t, char *, 88 size_t); 89 const struct evcnt *dec_alphabook1_intr_evcnt(void *, pci_intr_handle_t); 90 void *dec_alphabook1_intr_establish(void *, pci_intr_handle_t, 91 int, int (*func)(void *), void *); 92 void dec_alphabook1_intr_disestablish(void *, void *); 93 94 #define LCA_SIO_DEVICE 7 /* XXX */ 95 96 void 97 pci_alphabook1_pickintr(struct lca_config *lcp) 98 { 99 bus_space_tag_t iot = &lcp->lc_iot; 100 pci_chipset_tag_t pc = &lcp->lc_pc; 101 pcireg_t sioclass; 102 int sioII; 103 104 /* XXX MAGIC NUMBER */ 105 sioclass = pci_conf_read(pc, pci_make_tag(pc, 0, LCA_SIO_DEVICE, 0), 106 PCI_CLASS_REG); 107 sioII = (sioclass & 0xff) >= 3; 108 109 if (!sioII) 110 printf("WARNING: SIO NOT SIO II... NO BETS...\n"); 111 112 pc->pc_intr_v = lcp; 113 pc->pc_intr_map = dec_alphabook1_intr_map; 114 pc->pc_intr_string = dec_alphabook1_intr_string; 115 pc->pc_intr_evcnt = dec_alphabook1_intr_evcnt; 116 pc->pc_intr_establish = dec_alphabook1_intr_establish; 117 pc->pc_intr_disestablish = dec_alphabook1_intr_disestablish; 118 119 /* Not supported on AlphaBook. */ 120 pc->pc_pciide_compat_intr_establish = NULL; 121 122 #if NSIO 123 sio_intr_setup(pc, iot); 124 #else 125 panic("pci_alphabook1_pickintr: no I/O interrupt handler (no sio)"); 126 #endif 127 } 128 129 int 130 dec_alphabook1_intr_map(const struct pci_attach_args *pa, 131 pci_intr_handle_t *ihp) 132 { 133 pcitag_t bustag = pa->pa_intrtag; 134 int buspin = pa->pa_intrpin; 135 pci_chipset_tag_t pc = pa->pa_pc; 136 int device, irq; 137 138 if (buspin == 0) { 139 /* No IRQ used. */ 140 return 1; 141 } 142 if (buspin > 4) { 143 printf("dec_alphabook1_intr_map: bad interrupt pin %d\n", 144 buspin); 145 return 1; 146 } 147 148 pci_decompose_tag(pc, bustag, NULL, &device, NULL); 149 150 /* 151 * There is only one interrupting PCI device on the AlphaBook: an 152 * NCR SCSI at device 6. Devices 7 and 8 are the SIO and a 153 * Cirrus PD6729 PCMCIA controller. There are no option slots 154 * available. 155 * 156 * NOTE! Apparently, there was a later AlphaBook which uses 157 * a different interrupt scheme, and has a built-in Tulip Ethernet 158 * interface! We do not handle that here! 159 */ 160 161 switch (device) { 162 case 6: /* NCR SCSI */ 163 irq = 14; 164 break; 165 166 default: 167 printf("dec_alphabook1_intr_map: weird device number %d\n", 168 device); 169 return 1; 170 } 171 172 *ihp = irq; 173 return (0); 174 } 175 176 const char * 177 dec_alphabook1_intr_string(void *lcv, pci_intr_handle_t ih, char *buf, size_t len) 178 { 179 #if 0 180 struct lca_config *lcp = lcv; 181 #endif 182 183 return sio_intr_string(NULL /*XXX*/, ih, buf, len); 184 } 185 186 const struct evcnt * 187 dec_alphabook1_intr_evcnt(void *lcv, pci_intr_handle_t ih) 188 { 189 #if 0 190 struct lca_config *lcp = lcv; 191 #endif 192 193 return sio_intr_evcnt(NULL /*XXX*/, ih); 194 } 195 196 void * 197 dec_alphabook1_intr_establish(void *lcv, pci_intr_handle_t ih, int level, int (*func)(void *), void *arg) 198 { 199 #if 0 200 struct lca_config *lcp = lcv; 201 #endif 202 203 return sio_intr_establish(NULL /*XXX*/, ih, IST_LEVEL, level, func, 204 arg); 205 } 206 207 void 208 dec_alphabook1_intr_disestablish(void *lcv, void *cookie) 209 { 210 #if 0 211 struct lca_config *lcp = lcv; 212 #endif 213 214 sio_intr_disestablish(NULL /*XXX*/, cookie); 215 } 216