aha_mca.c revision 117126
1/*- 2 * Copyright (c) 1999 Matthew N. Dodd <winter@jurai.net> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * $FreeBSD: head/sys/dev/aha/aha_mca.c 117126 2003-07-01 15:52:06Z scottl $ 27 * 28 * Based on aha_isa.c 29 */ 30 31#include <sys/types.h> 32#include <sys/param.h> 33#include <sys/kernel.h> 34#include <sys/lock.h> 35#include <sys/mutex.h> 36 37#include <sys/module.h> 38#include <sys/bus.h> 39#include <machine/bus.h> 40#include <machine/resource.h> 41#include <sys/rman.h> 42 43#include <i386/isa/isa_dma.h> 44 45#include <dev/mca/mca_busreg.h> 46#include <dev/mca/mca_busvar.h> 47 48#include <dev/aha/ahareg.h> 49 50static struct mca_ident aha_mca_devs[] = { 51 { 0x0f1f, "Adaptec AHA-1640 SCSI Adapter" }, 52 { 0, NULL }, 53}; 54 55#define AHA_MCA_IOPORT_POS MCA_ADP_POS(MCA_POS1) 56# define AHA_MCA_IOPORT_MASK1 0x07 57# define AHA_MCA_IOPORT_MASK2 0xc0 58# define AHA_MCA_IOPORT_SIZE 0x03 59# define AHA_MCA_IOPORT(pos) (0x30 + \ 60 (((u_int32_t)pos & \ 61 AHA_MCA_IOPORT_MASK1) << 8) + \ 62 (((u_int32_t)pos & \ 63 AHA_MCA_IOPORT_MASK2) >> 4)) 64 65#define AHA_MCA_DRQ_POS MCA_ADP_POS(MCA_POS3) 66# define AHA_MCA_DRQ_MASK 0x0f 67# define AHA_MCA_DRQ(pos) (pos & AHA_MCA_DRQ_MASK) 68 69#define AHA_MCA_IRQ_POS MCA_ADP_POS(MCA_POS2) 70# define AHA_MCA_IRQ_MASK 0x07 71# define AHA_MCA_IRQ(pos) ((pos & AHA_MCA_IRQ_MASK) + 8) 72 73/* 74 * Not needed as the board knows its config 75 * internally and the ID will be fetched 76 * via AOP_INQUIRE_SETUP_INFO command. 77 */ 78#define AHA_MCA_SCSIID_POS MCA_ADP_POS(MCA_POS2) 79#define AHA_MCA_SCSIID_MASK 0xe0 80#define AHA_MCA_SCSIID(pos) ((pos & AHA_MCA_SCSIID_MASK) >> 5) 81 82static int 83aha_mca_probe (device_t dev) 84{ 85 const char * desc; 86 mca_id_t id = mca_get_id(dev); 87 u_int32_t iobase = 0; 88 u_int32_t iosize = 0; 89 u_int8_t drq = 0; 90 u_int8_t irq = 0; 91 u_int8_t pos; 92 93 desc = mca_match_id(id, aha_mca_devs); 94 if (!desc) 95 return (ENXIO); 96 device_set_desc(dev, desc); 97 98 pos = mca_pos_read(dev, AHA_MCA_IOPORT_POS); 99 iobase = AHA_MCA_IOPORT(pos); 100 iosize = AHA_MCA_IOPORT_SIZE; 101 102 pos = mca_pos_read(dev, AHA_MCA_DRQ_POS); 103 drq = AHA_MCA_DRQ(pos); 104 105 pos = mca_pos_read(dev, AHA_MCA_IRQ_POS); 106 irq = AHA_MCA_IRQ(pos); 107 108 mca_add_iospace(dev, iobase, iosize); 109 mca_add_drq(dev, drq); 110 mca_add_irq(dev, irq); 111 112 aha_unit++; 113 114 return (0); 115} 116 117static int 118aha_mca_attach (device_t dev) 119{ 120 struct aha_softc * sc = NULL; 121 struct resource * io = NULL; 122 struct resource * irq = NULL; 123 struct resource * drq = NULL; 124 int error = 0; 125 int unit = device_get_unit(dev); 126 int rid; 127 void * ih; 128 129 rid = 0; 130 io = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 131 0, ~0, 1, RF_ACTIVE); 132 if (!io) { 133 device_printf(dev, "No I/O space?!\n"); 134 error = ENOMEM; 135 goto bad; 136 } 137 138 rid = 0; 139 irq = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 140 0, ~0, 1, RF_ACTIVE); 141 if (irq == NULL) { 142 device_printf(dev, "No IRQ?!\n"); 143 error = ENOMEM; 144 goto bad; 145 } 146 147 rid = 0; 148 drq = bus_alloc_resource(dev, SYS_RES_DRQ, &rid, 149 0, ~0, 1, RF_ACTIVE); 150 if (drq == NULL) { 151 device_printf(dev, "No DRQ?!\n"); 152 error = ENOMEM; 153 goto bad; 154 } 155 156 sc = aha_alloc(unit, rman_get_bustag(io), rman_get_bushandle(io)); 157 if (sc == NULL) { 158 device_printf(dev, "aha_alloc() failed!\n"); 159 error = ENOMEM; 160 goto bad; 161 } 162 163 error = aha_probe(sc); 164 if (error) { 165 device_printf(dev, "aha_probe() failed!\n"); 166 goto bad; 167 } 168 169 error = aha_fetch_adapter_info(sc); 170 if (error) { 171 device_printf(dev, "aha_fetch_adapter_info() failed!\n"); 172 goto bad; 173 } 174 175 isa_dmacascade(rman_get_start(drq)); 176 177 error = bus_dma_tag_create( 178 /* parent */ NULL, 179 /* alignemnt */ 1, 180 /* boundary */ 0, 181 /* lowaddr */ BUS_SPACE_MAXADDR_24BIT, 182 /* highaddr */ BUS_SPACE_MAXADDR, 183 /* filter */ NULL, 184 /* filterarg */ NULL, 185 /* maxsize */ BUS_SPACE_MAXSIZE_24BIT, 186 /* nsegments */ ~0, 187 /* maxsegsz */ BUS_SPACE_MAXSIZE_24BIT, 188 /* flags */ 0, 189 /* lockfunc */ busdma_lock_mutex, 190 /* lockarg */ &Giant, 191 &sc->parent_dmat); 192 if (error) { 193 device_printf(dev, "bus_dma_tag_create() failed!\n"); 194 goto bad; 195 } 196 197 error = aha_init(sc); 198 if (error) { 199 device_printf(dev, "aha_init() failed\n"); 200 goto bad; 201 } 202 203 error = aha_attach(sc); 204 if (error) { 205 device_printf(dev, "aha_attach() failed\n"); 206 goto bad; 207 } 208 209 error = bus_setup_intr(dev, irq, INTR_TYPE_CAM|INTR_ENTROPY, aha_intr, sc, &ih); 210 if (error) { 211 device_printf(dev, "Unable to register interrupt handler\n"); 212 goto bad; 213 } 214 215 return (0); 216 217bad: 218 aha_free(sc); 219 220 if (io) 221 bus_release_resource(dev, SYS_RES_IOPORT, 0, io); 222 if (irq) 223 bus_release_resource(dev, SYS_RES_IRQ, 0, irq); 224 if (drq) 225 bus_release_resource(dev, SYS_RES_DRQ, 0, drq); 226 227 return (error); 228} 229 230static device_method_t aha_mca_methods[] = { 231 DEVMETHOD(device_probe, aha_mca_probe), 232 DEVMETHOD(device_attach, aha_mca_attach), 233 234 { 0, 0 } 235}; 236 237static driver_t aha_mca_driver = { 238 "aha", 239 aha_mca_methods, 240 1, 241/* 242 sizeof(struct aha_softc *), 243 */ 244}; 245 246static devclass_t aha_devclass; 247 248DRIVER_MODULE(aha, mca, aha_mca_driver, aha_devclass, 0, 0); 249