aha_isa.c revision 119418
1/* 2 * Product specific probe and attach routines for: 3 * Adaptec 154x. 4 * 5 * Derived from code written by: 6 * 7 * Copyright (c) 1998 Justin T. Gibbs 8 * All rights reserved. 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 * without modification, immediately at the beginning of the file. 16 * 2. The name of the author may not be used to endorse or promote products 17 * derived from this software without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 23 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32#include <sys/cdefs.h> 33__FBSDID("$FreeBSD: head/sys/dev/aha/aha_isa.c 119418 2003-08-24 17:55:58Z obrien $"); 34 35#include <sys/param.h> 36#include <sys/systm.h> 37#include <sys/kernel.h> 38#include <sys/lock.h> 39#include <sys/mutex.h> 40 41#include <machine/bus_pio.h> 42#include <machine/bus.h> 43#include <machine/resource.h> 44#include <sys/module.h> 45#include <sys/bus.h> 46#include <sys/rman.h> 47 48#include <isa/isavar.h> 49 50#include <dev/aha/ahareg.h> 51 52#include <cam/scsi/scsi_all.h> 53 54static struct isa_pnp_id aha_ids[] = { 55 {ADP0100_PNP, "Adaptec 1540/1542 ISA SCSI"}, /* ADP0100 */ 56 {AHA1540_PNP, "Adaptec 1540/aha-1640/aha-1535"},/* ADP1542 */ 57 {AHA1542_PNP, "Adaptec 1542/aha-1535"}, /* ADP1542 */ 58 {AHA1542_PNPCOMPAT, "Adaptec 1542 compatible"}, /* PNP00A0 */ 59 {ICU0091_PNP, "Adaptec AHA-1540/1542 SCSI"}, /* ICU0091 */ 60 {0} 61}; 62 63/* 64 * Check if the device can be found at the port given 65 * and if so, set it up ready for further work 66 * as an argument, takes the isa_device structure from 67 * autoconf.c 68 */ 69static int 70aha_isa_probe(device_t dev) 71{ 72 /* 73 * find unit and check we have that many defined 74 */ 75 struct aha_softc **sc = device_get_softc(dev); 76 struct aha_softc *aha; 77 int port_index; 78 int max_port_index; 79 int error; 80 u_long port_start, port_count; 81 struct resource *port_res; 82 int port_rid; 83 int drq; 84 int irq; 85 86 aha = NULL; 87 88 /* Check isapnp ids */ 89 if (ISA_PNP_PROBE(device_get_parent(dev), dev, aha_ids) == ENXIO) 90 return (ENXIO); 91 92 error = bus_get_resource(dev, SYS_RES_IOPORT, 0, 93 &port_start, &port_count); 94 if (error != 0) 95 port_start = 0; 96 97 /* 98 * Bound our board search if the user has 99 * specified an exact port. 100 */ 101 aha_find_probe_range(port_start, &port_index, &max_port_index); 102 103 if (port_index < 0) 104 return ENXIO; 105 106 /* Attempt to find an adapter */ 107 for (;port_index <= max_port_index; port_index++) { 108 config_data_t config_data; 109 u_int ioport; 110 int error; 111 112 ioport = aha_iop_from_bio(port_index); 113 114 error = bus_set_resource(dev, SYS_RES_IOPORT, 0, 115 ioport, AHA_NREGS); 116 if (error) 117 return error; 118 119 port_rid = 0; 120 port_res = bus_alloc_resource(dev, SYS_RES_IOPORT, &port_rid, 121 0, ~0, AHA_NREGS, RF_ACTIVE); 122 if (!port_res) 123 continue; 124 125 /* Allocate a softc for use during probing */ 126 aha = aha_alloc(device_get_unit(dev), rman_get_bustag(port_res), 127 rman_get_bushandle(port_res)); 128 129 if (aha == NULL) { 130 bus_release_resource(dev, SYS_RES_IOPORT, port_rid, 131 port_res); 132 break; 133 } 134 135 /* See if there is really a card present */ 136 if (aha_probe(aha) || aha_fetch_adapter_info(aha)) { 137 aha_free(aha); 138 bus_release_resource(dev, SYS_RES_IOPORT, port_rid, 139 port_res); 140 continue; 141 } 142 143 /* 144 * Determine our IRQ, and DMA settings and 145 * export them to the configuration system. 146 */ 147 error = aha_cmd(aha, AOP_INQUIRE_CONFIG, NULL, /*parmlen*/0, 148 (u_int8_t*)&config_data, sizeof(config_data), 149 DEFAULT_CMD_TIMEOUT); 150 151 if (error != 0) { 152 printf("aha_isa_probe: Could not determine IRQ or DMA " 153 "settings for adapter at 0x%x. Failing probe\n", 154 ioport); 155 aha_free(aha); 156 bus_release_resource(dev, SYS_RES_IOPORT, port_rid, 157 port_res); 158 continue; 159 } 160 161 bus_release_resource(dev, SYS_RES_IOPORT, port_rid, port_res); 162 163 switch (config_data.dma_chan) { 164 case DMA_CHAN_5: 165 drq = 5; 166 break; 167 case DMA_CHAN_6: 168 drq = 6; 169 break; 170 case DMA_CHAN_7: 171 drq = 7; 172 break; 173 default: 174 printf("aha_isa_probe: Invalid DMA setting " 175 "detected for adapter at 0x%x. " 176 "Failing probe\n", ioport); 177 return (ENXIO); 178 } 179 error = bus_set_resource(dev, SYS_RES_DRQ, 0, drq, 1); 180 if (error) 181 return error; 182 183 irq = ffs(config_data.irq) + 8; 184 error = bus_set_resource(dev, SYS_RES_IRQ, 0, irq, 1); 185 if (error) 186 return error; 187 188 *sc = aha; 189 aha_unit++; 190 191 return (0); 192 } 193 194 return (ENXIO); 195} 196 197/* 198 * Attach all the sub-devices we can find 199 */ 200static int 201aha_isa_attach(device_t dev) 202{ 203 struct aha_softc **sc = device_get_softc(dev); 204 struct aha_softc *aha; 205 bus_dma_filter_t *filter; 206 void *filter_arg; 207 bus_addr_t lowaddr; 208 void *ih; 209 int error; 210 211 aha = *sc; 212 aha->portrid = 0; 213 aha->port = bus_alloc_resource(dev, SYS_RES_IOPORT, &aha->portrid, 214 0, ~0, AHA_NREGS, RF_ACTIVE); 215 if (!aha->port) { 216 device_printf(dev, "Unable to allocate I/O ports\n"); 217 return ENOMEM; 218 } 219 220 aha->irqrid = 0; 221 aha->irq = bus_alloc_resource(dev, SYS_RES_IRQ, &aha->irqrid, 0, ~0, 1, 222 RF_ACTIVE); 223 if (!aha->irq) { 224 device_printf(dev, "Unable to allocate excluse use of irq\n"); 225 bus_release_resource(dev, SYS_RES_IOPORT, aha->portrid, aha->port); 226 return ENOMEM; 227 } 228 229 aha->drqrid = 0; 230 aha->drq = bus_alloc_resource(dev, SYS_RES_DRQ, &aha->drqrid, 0, ~0, 1, 231 RF_ACTIVE); 232 if (!aha->drq) { 233 device_printf(dev, "Unable to allocate drq\n"); 234 bus_release_resource(dev, SYS_RES_IOPORT, aha->portrid, aha->port); 235 bus_release_resource(dev, SYS_RES_IRQ, aha->irqrid, aha->irq); 236 return ENOMEM; 237 } 238 239#if 0 /* is the drq ever unset? */ 240 if (dev->id_drq != -1) 241 isa_dmacascade(dev->id_drq); 242#endif 243 isa_dmacascade(rman_get_start(aha->drq)); 244 245 /* Allocate our parent dmatag */ 246 filter = NULL; 247 filter_arg = NULL; 248 lowaddr = BUS_SPACE_MAXADDR_24BIT; 249 250 if (bus_dma_tag_create( /* parent */ NULL, 251 /* alignemnt */ 1, 252 /* boundary */ 0, 253 /* lowaddr */ lowaddr, 254 /* highaddr */ BUS_SPACE_MAXADDR, 255 /* filter */ filter, 256 /* filterarg */ filter_arg, 257 /* maxsize */ BUS_SPACE_MAXSIZE_24BIT, 258 /* nsegments */ ~0, 259 /* maxsegsz */ BUS_SPACE_MAXSIZE_24BIT, 260 /* flags */ 0, 261 /* lockfunc */ busdma_lock_mutex, 262 /* lockarg */ &Giant, 263 &aha->parent_dmat) != 0) { 264 aha_free(aha); 265 bus_release_resource(dev, SYS_RES_IOPORT, aha->portrid, aha->port); 266 bus_release_resource(dev, SYS_RES_IRQ, aha->irqrid, aha->irq); 267 bus_release_resource(dev, SYS_RES_DRQ, aha->drqrid, aha->drq); 268 return (ENOMEM); 269 } 270 271 if (aha_init(aha)) { 272 device_printf(dev, "init failed\n"); 273 aha_free(aha); 274 bus_release_resource(dev, SYS_RES_IOPORT, aha->portrid, aha->port); 275 bus_release_resource(dev, SYS_RES_IRQ, aha->irqrid, aha->irq); 276 bus_release_resource(dev, SYS_RES_DRQ, aha->drqrid, aha->drq); 277 return (ENOMEM); 278 } 279 280 error = aha_attach(aha); 281 if (error) { 282 device_printf(dev, "attach failed\n"); 283 aha_free(aha); 284 bus_release_resource(dev, SYS_RES_IOPORT, aha->portrid, aha->port); 285 bus_release_resource(dev, SYS_RES_IRQ, aha->irqrid, aha->irq); 286 bus_release_resource(dev, SYS_RES_DRQ, aha->drqrid, aha->drq); 287 return (error); 288 } 289 290 error = bus_setup_intr(dev, aha->irq, INTR_TYPE_CAM|INTR_ENTROPY, aha_intr, aha, 291 &ih); 292 if (error) { 293 device_printf(dev, "Unable to register interrupt handler\n"); 294 aha_free(aha); 295 bus_release_resource(dev, SYS_RES_IOPORT, aha->portrid, aha->port); 296 bus_release_resource(dev, SYS_RES_IRQ, aha->irqrid, aha->irq); 297 bus_release_resource(dev, SYS_RES_DRQ, aha->drqrid, aha->drq); 298 return (error); 299 } 300 301 return (0); 302} 303 304static int 305aha_isa_detach(device_t dev) 306{ 307 struct aha_softc *aha = *(struct aha_softc **) device_get_softc(dev); 308 int error; 309 310 error = bus_teardown_intr(dev, aha->irq, aha->ih); 311 if (error) { 312 device_printf(dev, "failed to unregister interrupt handler\n"); 313 } 314 315 bus_release_resource(dev, SYS_RES_IOPORT, aha->portrid, aha->port); 316 bus_release_resource(dev, SYS_RES_IRQ, aha->irqrid, aha->irq); 317 bus_release_resource(dev, SYS_RES_DRQ, aha->drqrid, aha->drq); 318 319 error = aha_detach(aha); 320 if (error) { 321 device_printf(dev, "detach failed\n"); 322 return (error); 323 } 324 aha_free(aha); 325 326 return (0); 327} 328 329static void 330aha_isa_identify(driver_t *driver, device_t parent) 331{ 332} 333 334static device_method_t aha_isa_methods[] = { 335 /* Device interface */ 336 DEVMETHOD(device_probe, aha_isa_probe), 337 DEVMETHOD(device_attach, aha_isa_attach), 338 DEVMETHOD(device_detach, aha_isa_detach), 339 DEVMETHOD(device_identify, aha_isa_identify), 340 341 { 0, 0 } 342}; 343 344static driver_t aha_isa_driver = { 345 "aha", 346 aha_isa_methods, 347 sizeof(struct aha_softc*), 348}; 349 350static devclass_t aha_devclass; 351 352DRIVER_MODULE(aha, isa, aha_isa_driver, aha_devclass, 0, 0); 353