Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/dev/aha/aha_isa.c
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1 /* 2 * Product specific probe and attach routines for: 3 * Adaptec 154x. 4 * 5 * Copyright (c) 1999-2003 M. Warner Losh 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions, and the following disclaimer, 13 * without modification, immediately at the beginning of the file. 14 * 2. The name of the author may not be used to endorse or promote products 15 * derived from this software without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 21 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * Derived from bt isa from end, written by: 30 * 31 * Copyright (c) 1998 Justin T. Gibbs 32 * All rights reserved. 33 * 34 * Redistribution and use in source and binary forms, with or without 35 * modification, are permitted provided that the following conditions 36 * are met: 37 * 1. Redistributions of source code must retain the above copyright 38 * notice, this list of conditions, and the following disclaimer, 39 * without modification, immediately at the beginning of the file. 40 * 2. The name of the author may not be used to endorse or promote products 41 * derived from this software without specific prior written permission. 42 * 43 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 44 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 45 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 46 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 47 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 48 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 49 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 50 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 51 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 52 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 53 * SUCH DAMAGE. 54 */ 55 56 #include <sys/cdefs.h> 57 __FBSDID("$FreeBSD: releng/5.2/sys/dev/aha/aha_isa.c 122597 2003-11-13 04:14:53Z imp $"); 58 59 #include <sys/param.h> 60 #include <sys/systm.h> 61 #include <sys/kernel.h> 62 #include <sys/lock.h> 63 #include <sys/mutex.h> 64 65 #include <machine/bus_pio.h> 66 #include <machine/bus.h> 67 #include <machine/resource.h> 68 #include <sys/module.h> 69 #include <sys/bus.h> 70 #include <sys/rman.h> 71 72 #include <isa/isavar.h> 73 74 #include <dev/aha/ahareg.h> 75 76 #include <cam/scsi/scsi_all.h> 77 78 static struct isa_pnp_id aha_ids[] = { 79 {ADP0100_PNP, "Adaptec 1540/1542 ISA SCSI"}, /* ADP0100 */ 80 {AHA1540_PNP, "Adaptec 1540/aha-1640/aha-1535"},/* ADP1540 */ 81 {AHA1542_PNP, "Adaptec 1542/aha-1535"}, /* ADP1542 */ 82 {AHA1542_PNPCOMPAT, "Adaptec 1542 compatible"}, /* PNP00A0 */ 83 {ICU0091_PNP, "Adaptec AHA-1540/1542 SCSI"}, /* ICU0091 */ 84 {0} 85 }; 86 87 /* 88 * I/O ports listed in the order enumerated by the card for certain op codes. 89 */ 90 static bus_addr_t aha_board_ports[] = 91 { 92 0x330, 93 0x334, 94 0x230, 95 0x234, 96 0x130, 97 0x134 98 }; 99 100 /* 101 * Check if the device can be found at the port given 102 */ 103 static int 104 aha_isa_probe(device_t dev) 105 { 106 /* 107 * find unit and check we have that many defined 108 */ 109 struct aha_softc *aha = device_get_softc(dev); 110 int error; 111 u_long port_start; 112 struct resource *port_res; 113 int port_rid; 114 int drq; 115 int irq; 116 config_data_t config_data; 117 118 aha->dev = dev; 119 /* Check isapnp ids */ 120 if (ISA_PNP_PROBE(device_get_parent(dev), dev, aha_ids) == ENXIO) 121 return (ENXIO); 122 123 port_rid = 0; 124 port_res = bus_alloc_resource(dev, SYS_RES_IOPORT, &port_rid, 125 0, ~0, AHA_NREGS, RF_ACTIVE); 126 127 if (port_res == NULL) 128 return (ENXIO); 129 130 port_start = rman_get_start(port_res); 131 aha_alloc(aha, device_get_unit(dev), rman_get_bustag(port_res), 132 rman_get_bushandle(port_res)); 133 134 /* See if there is really a card present */ 135 if (aha_probe(aha) || aha_fetch_adapter_info(aha)) { 136 aha_free(aha); 137 bus_release_resource(dev, SYS_RES_IOPORT, port_rid, port_res); 138 return (ENXIO); 139 } 140 141 /* 142 * Determine our IRQ, and DMA settings and 143 * export them to the configuration system. 144 */ 145 error = aha_cmd(aha, AOP_INQUIRE_CONFIG, NULL, /*parmlen*/0, 146 (uint8_t*)&config_data, sizeof(config_data), DEFAULT_CMD_TIMEOUT); 147 148 if (error != 0) { 149 device_printf(dev, "Could not determine IRQ or DMA " 150 "settings for adapter at %#jx. Failing probe\n", 151 (uintmax_t)port_start); 152 aha_free(aha); 153 bus_release_resource(dev, SYS_RES_IOPORT, port_rid, 154 port_res); 155 return (ENXIO); 156 } 157 158 bus_release_resource(dev, SYS_RES_IOPORT, port_rid, port_res); 159 160 switch (config_data.dma_chan) { 161 case DMA_CHAN_5: 162 drq = 5; 163 break; 164 case DMA_CHAN_6: 165 drq = 6; 166 break; 167 case DMA_CHAN_7: 168 drq = 7; 169 break; 170 default: 171 device_printf(dev, "Invalid DMA setting for adapter at %#jx.", 172 (uintmax_t)port_start); 173 return (ENXIO); 174 } 175 error = bus_set_resource(dev, SYS_RES_DRQ, 0, drq, 1); 176 if (error) 177 return error; 178 179 irq = ffs(config_data.irq) + 8; 180 error = bus_set_resource(dev, SYS_RES_IRQ, 0, irq, 1); 181 return (error); 182 } 183 184 /* 185 * Attach all the sub-devices we can find 186 */ 187 static int 188 aha_isa_attach(device_t dev) 189 { 190 struct aha_softc *aha = device_get_softc(dev); 191 bus_dma_filter_t *filter; 192 void *filter_arg; 193 bus_addr_t lowaddr; 194 void *ih; 195 int error; 196 197 aha->dev = dev; 198 aha->portrid = 0; 199 aha->port = bus_alloc_resource(dev, SYS_RES_IOPORT, &aha->portrid, 200 0, ~0, AHA_NREGS, RF_ACTIVE); 201 if (!aha->port) { 202 device_printf(dev, "Unable to allocate I/O ports\n"); 203 return ENOMEM; 204 } 205 206 aha->irqrid = 0; 207 aha->irq = bus_alloc_resource(dev, SYS_RES_IRQ, &aha->irqrid, 0, ~0, 1, 208 RF_ACTIVE); 209 if (!aha->irq) { 210 device_printf(dev, "Unable to allocate excluse use of irq\n"); 211 bus_release_resource(dev, SYS_RES_IOPORT, aha->portrid, aha->port); 212 return ENOMEM; 213 } 214 215 aha->drqrid = 0; 216 aha->drq = bus_alloc_resource(dev, SYS_RES_DRQ, &aha->drqrid, 0, ~0, 1, 217 RF_ACTIVE); 218 if (!aha->drq) { 219 device_printf(dev, "Unable to allocate drq\n"); 220 bus_release_resource(dev, SYS_RES_IOPORT, aha->portrid, aha->port); 221 bus_release_resource(dev, SYS_RES_IRQ, aha->irqrid, aha->irq); 222 return ENOMEM; 223 } 224 225 #if 0 /* is the drq ever unset? */ 226 if (dev->id_drq != -1) 227 isa_dmacascade(dev->id_drq); 228 #endif 229 isa_dmacascade(rman_get_start(aha->drq)); 230 231 /* Allocate our parent dmatag */ 232 filter = NULL; 233 filter_arg = NULL; 234 lowaddr = BUS_SPACE_MAXADDR_24BIT; 235 236 if (bus_dma_tag_create( /* parent */ NULL, 237 /* alignemnt */ 1, 238 /* boundary */ 0, 239 /* lowaddr */ lowaddr, 240 /* highaddr */ BUS_SPACE_MAXADDR, 241 /* filter */ filter, 242 /* filterarg */ filter_arg, 243 /* maxsize */ BUS_SPACE_MAXSIZE_24BIT, 244 /* nsegments */ ~0, 245 /* maxsegsz */ BUS_SPACE_MAXSIZE_24BIT, 246 /* flags */ 0, 247 /* lockfunc */ busdma_lock_mutex, 248 /* lockarg */ &Giant, 249 &aha->parent_dmat) != 0) { 250 aha_free(aha); 251 bus_release_resource(dev, SYS_RES_IOPORT, aha->portrid, aha->port); 252 bus_release_resource(dev, SYS_RES_IRQ, aha->irqrid, aha->irq); 253 bus_release_resource(dev, SYS_RES_DRQ, aha->drqrid, aha->drq); 254 return (ENOMEM); 255 } 256 257 if (aha_init(aha)) { 258 device_printf(dev, "init failed\n"); 259 aha_free(aha); 260 bus_release_resource(dev, SYS_RES_IOPORT, aha->portrid, aha->port); 261 bus_release_resource(dev, SYS_RES_IRQ, aha->irqrid, aha->irq); 262 bus_release_resource(dev, SYS_RES_DRQ, aha->drqrid, aha->drq); 263 return (ENOMEM); 264 } 265 266 error = aha_attach(aha); 267 if (error) { 268 device_printf(dev, "attach failed\n"); 269 aha_free(aha); 270 bus_release_resource(dev, SYS_RES_IOPORT, aha->portrid, aha->port); 271 bus_release_resource(dev, SYS_RES_IRQ, aha->irqrid, aha->irq); 272 bus_release_resource(dev, SYS_RES_DRQ, aha->drqrid, aha->drq); 273 return (error); 274 } 275 276 error = bus_setup_intr(dev, aha->irq, INTR_TYPE_CAM|INTR_ENTROPY, aha_intr, aha, 277 &ih); 278 if (error) { 279 device_printf(dev, "Unable to register interrupt handler\n"); 280 aha_free(aha); 281 bus_release_resource(dev, SYS_RES_IOPORT, aha->portrid, aha->port); 282 bus_release_resource(dev, SYS_RES_IRQ, aha->irqrid, aha->irq); 283 bus_release_resource(dev, SYS_RES_DRQ, aha->drqrid, aha->drq); 284 return (error); 285 } 286 287 return (0); 288 } 289 290 static int 291 aha_isa_detach(device_t dev) 292 { 293 struct aha_softc *aha = (struct aha_softc *)device_get_softc(dev); 294 int error; 295 296 error = bus_teardown_intr(dev, aha->irq, aha->ih); 297 if (error) { 298 device_printf(dev, "failed to unregister interrupt handler\n"); 299 } 300 301 bus_release_resource(dev, SYS_RES_IOPORT, aha->portrid, aha->port); 302 bus_release_resource(dev, SYS_RES_IRQ, aha->irqrid, aha->irq); 303 bus_release_resource(dev, SYS_RES_DRQ, aha->drqrid, aha->drq); 304 305 error = aha_detach(aha); 306 if (error) { 307 device_printf(dev, "detach failed\n"); 308 return (error); 309 } 310 aha_free(aha); 311 312 return (0); 313 } 314 315 static void 316 aha_isa_identify(driver_t *driver, device_t parent) 317 { 318 int i; 319 bus_addr_t ioport; 320 struct aha_softc aha; 321 int rid; 322 struct resource *res; 323 device_t child; 324 325 /* Attempt to find an adapter */ 326 for (i = 0; i < sizeof(aha_board_ports) / sizeof(aha_board_ports[0]); 327 i++) { 328 bzero(&aha, sizeof(aha)); 329 ioport = aha_board_ports[i]; 330 /* 331 * XXX Check to see if we have a hard-wired aha device at 332 * XXX this port, if so, skip. This should also cover the 333 * XXX case where we are run multiple times due to, eg, 334 * XXX kldload/kldunload. 335 */ 336 rid = 0; 337 res = bus_alloc_resource(parent, SYS_RES_IOPORT, &rid, 338 ioport, ioport, AHA_NREGS, RF_ACTIVE); 339 if (res == NULL) 340 continue; 341 aha_alloc(&aha, -1, rman_get_bustag(res), 342 rman_get_bushandle(res)); 343 /* See if there is really a card present */ 344 if (aha_probe(&aha) || aha_fetch_adapter_info(&aha)) 345 goto not_this_one; 346 child = BUS_ADD_CHILD(parent, ISA_ORDER_SPECULATIVE, "aha", -1); 347 bus_set_resource(child, SYS_RES_IOPORT, 0, ioport, AHA_NREGS); 348 /* 349 * Could query the board and set IRQ/DRQ, but probe does 350 * that. 351 */ 352 not_this_one:; 353 bus_release_resource(parent, SYS_RES_IOPORT, rid, res); 354 aha_free(&aha); 355 } 356 } 357 358 static device_method_t aha_isa_methods[] = { 359 /* Device interface */ 360 DEVMETHOD(device_probe, aha_isa_probe), 361 DEVMETHOD(device_attach, aha_isa_attach), 362 DEVMETHOD(device_detach, aha_isa_detach), 363 DEVMETHOD(device_identify, aha_isa_identify), 364 365 { 0, 0 } 366 }; 367 368 static driver_t aha_isa_driver = { 369 "aha", 370 aha_isa_methods, 371 sizeof(struct aha_softc), 372 }; 373 374 static devclass_t aha_devclass; 375 376 DRIVER_MODULE(aha, isa, aha_isa_driver, aha_devclass, 0, 0);
Cache object: 911d3fe34776ac6d1b9247e79807e7b8
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