sys/dev/advansys/adv_isa.c

   1 /*-
   2  * Device probe and attach routines for the following
   3  * Advanced Systems Inc. SCSI controllers:
   4  *
   5  *   Connectivity Products:
   6  *      ABP510/5150 - Bus-Master ISA (240 CDB) *
   7  *      ABP5140 - Bus-Master ISA PnP (16 CDB) * **
   8  *      ABP5142 - Bus-Master ISA PnP with floppy (16 CDB) ***
   9  *
  10  *   Single Channel Products:
  11  *      ABP542 - Bus-Master ISA with floppy (240 CDB)
  12  *      ABP842 - Bus-Master VL (240 CDB)
  13  *
  14  *   Dual Channel Products:
  15  *      ABP852 - Dual Channel Bus-Master VL (240 CDB Per Channel)
  16  *
  17  *    * This board has been shipped by HP with the 4020i CD-R drive.
  18  *      The board has no BIOS so it cannot control a boot device, but
  19  *      it can control any secondary SCSI device.
  20  *   ** This board has been sold by SIIG as the i540 SpeedMaster.
  21  *  *** This board has been sold by SIIG as the i542 SpeedMaster.
  22  *
  23  * Copyright (c) 1996, 1997 Justin T. Gibbs.
  24  * All rights reserved.
  25  *
  26  * Redistribution and use in source and binary forms, with or without
  27  * modification, are permitted provided that the following conditions
  28  * are met:
  29  * 1. Redistributions of source code must retain the above copyright
  30  *    notice, this list of conditions, and the following disclaimer,
  31  *    without modification, immediately at the beginning of the file.
  32  * 2. The name of the author may not be used to endorse or promote products
  33  *    derived from this software without specific prior written permission.
  34  *
  35  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  36  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  37  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  38  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
  39  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  40  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  41  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  42  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  43  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  44  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  45  * SUCH DAMAGE.
  46  */
  47
  48 #include <sys/cdefs.h>
  49 __FBSDID("$FreeBSD$");
  50
  51 #include <sys/param.h>
  52 #include <sys/systm.h>
  53 #include <sys/kernel.h>
  54 #include <sys/module.h>
  55 #include <sys/lock.h>
  56 #include <sys/mutex.h>
  57
  58 #include <machine/bus.h>
  59 #include <machine/resource.h>
  60 #include <sys/bus.h>
  61 #include <sys/rman.h>
  62
  63 #include <isa/isavar.h>
  64
  65 #include <dev/advansys/advansys.h>
  66
  67 #include <cam/scsi/scsi_all.h>
  68
  69 #define ADV_ISA_MAX_DMA_ADDR    (0x00FFFFFFL)
  70 #define ADV_ISA_MAX_DMA_COUNT   (0x00FFFFFFL)
  71
  72 #define ADV_VL_MAX_DMA_ADDR     (0x07FFFFFFL)
  73 #define ADV_VL_MAX_DMA_COUNT    (0x07FFFFFFL)
  74
  75 /*
  76  * The overrun buffer shared amongst all ISA/VL adapters.
  77  */
  78 static  u_int8_t*       overrun_buf;
  79 static  bus_dma_tag_t   overrun_dmat;
  80 static  bus_dmamap_t    overrun_dmamap;
  81 static  bus_addr_t      overrun_physbase;
  82
  83 /* Possible port addresses an ISA or VL adapter can live at */
  84 static u_int16_t adv_isa_ioports[] =
  85 {
  86         0x100,
  87         0x110,  /* First selection in BIOS setup */
  88         0x120,
  89         0x130,  /* Second selection in BIOS setup */
  90         0x140,
  91         0x150,  /* Third selection in BIOS setup */
  92         0x190,  /* Fourth selection in BIOS setup */
  93         0x210,  /* Fifth selection in BIOS setup */
  94         0x230,  /* Sixth selection in BIOS setup */
  95         0x250,  /* Seventh selection in BIOS setup */
  96         0x330   /* Eighth and default selection in BIOS setup */
  97 };
  98
  99 #define MAX_ISA_IOPORT_INDEX (sizeof(adv_isa_ioports)/sizeof(u_int16_t) - 1)
 100
 101 static  int     adv_isa_probe(device_t dev);
 102 static  int     adv_isa_attach(device_t dev);
 103 static  void    adv_set_isapnp_wait_for_key(void);
 104 static  int     adv_get_isa_dma_channel(struct adv_softc *adv);
 105 static  int     adv_set_isa_dma_settings(struct adv_softc *adv);
 106
 107 static int
 108 adv_isa_probe(device_t dev)
 109 {
 110         int     port_index;
 111         int     max_port_index;
 112         u_long  iobase, iocount, irq;
 113         int     user_iobase = 0;
 114         int     rid = 0;
 115         void    *ih;
 116         struct resource *iores, *irqres;
 117
 118         /*
 119          * We don't know of any PnP ID's for these cards.
 120          */
 121         if (isa_get_logicalid(dev) != 0)
 122                 return (ENXIO);
 123
 124         /*
 125          * Default to scanning all possible device locations.
 126          */
 127         port_index = 0;
 128         max_port_index = MAX_ISA_IOPORT_INDEX;
 129
 130         if (bus_get_resource(dev, SYS_RES_IOPORT, 0, &iobase, &iocount) == 0) {
 131                 user_iobase = 1;
 132                 for (;port_index <= max_port_index; port_index++)
 133                         if (iobase <= adv_isa_ioports[port_index])
 134                                 break;
 135                 if ((port_index > max_port_index)
 136                  || (iobase != adv_isa_ioports[port_index])) {
 137                         if (bootverbose)
 138                             printf("adv%d: Invalid baseport of 0x%lx specified. "
 139                                 "Nearest valid baseport is 0x%x.  Failing "
 140                                 "probe.\n", device_get_unit(dev), iobase,
 141                                 (port_index <= max_port_index) ?
 142                                         adv_isa_ioports[port_index] :
 143                                         adv_isa_ioports[max_port_index]);
 144                         return ENXIO;
 145                 }
 146                 max_port_index = port_index;
 147         }
 148
 149         /* Perform the actual probing */
 150         adv_set_isapnp_wait_for_key();
 151         for (;port_index <= max_port_index; port_index++) {
 152                 u_int16_t port_addr = adv_isa_ioports[port_index];
 153                 bus_size_t maxsegsz;
 154                 bus_size_t maxsize;
 155                 bus_addr_t lowaddr;
 156                 int error;
 157                 struct adv_softc *adv;
 158
 159                 if (port_addr == 0)
 160                         /* Already been attached */
 161                         continue;
 162
 163                 if (bus_set_resource(dev, SYS_RES_IOPORT, 0, port_addr, 1))
 164                         continue;
 165
 166                 /* XXX what is the real portsize? */
 167                 iores = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid,
 168                                                RF_ACTIVE);
 169                 if (iores == NULL)
 170                         continue;
 171
 172                 if (adv_find_signature(rman_get_bustag(iores),
 173                                        rman_get_bushandle(iores)) == 0) {
 174                         bus_release_resource(dev, SYS_RES_IOPORT, 0, iores);
 175                         continue;
 176                 }
 177
 178                 /*
 179                  * Got one.  Now allocate our softc
 180                  * and see if we can initialize the card.
 181                  */
 182                 adv = adv_alloc(dev, rman_get_bustag(iores),
 183                                 rman_get_bushandle(iores));
 184                 if (adv == NULL) {
 185                         bus_release_resource(dev, SYS_RES_IOPORT, 0, iores);
 186                         break;
 187                 }
 188
 189                 /*
 190                  * Stop the chip.
 191                  */
 192                 ADV_OUTB(adv, ADV_CHIP_CTRL, ADV_CC_HALT);
 193                 ADV_OUTW(adv, ADV_CHIP_STATUS, 0);
 194                 /*
 195                  * Determine the chip version.
 196                  */
 197                 adv->chip_version = ADV_INB(adv, ADV_NONEISA_CHIP_REVISION);
 198                 if ((adv->chip_version >= ADV_CHIP_MIN_VER_VL)
 199                     && (adv->chip_version <= ADV_CHIP_MAX_VER_VL)) {
 200                         adv->type = ADV_VL;
 201                         maxsegsz = ADV_VL_MAX_DMA_COUNT;
 202                         maxsize = BUS_SPACE_MAXSIZE_32BIT;
 203                         lowaddr = ADV_VL_MAX_DMA_ADDR;
 204                         bus_delete_resource(dev, SYS_RES_DRQ, 0);
 205                 } else if ((adv->chip_version >= ADV_CHIP_MIN_VER_ISA)
 206                            && (adv->chip_version <= ADV_CHIP_MAX_VER_ISA)) {
 207                         if (adv->chip_version >= ADV_CHIP_MIN_VER_ISA_PNP) {
 208                                 adv->type = ADV_ISAPNP;
 209                                 ADV_OUTB(adv, ADV_REG_IFC,
 210                                          ADV_IFC_INIT_DEFAULT);
 211                         } else {
 212                                 adv->type = ADV_ISA;
 213                         }
 214                         maxsegsz = ADV_ISA_MAX_DMA_COUNT;
 215                         maxsize = BUS_SPACE_MAXSIZE_24BIT;
 216                         lowaddr = ADV_ISA_MAX_DMA_ADDR;
 217                         adv->isa_dma_speed = ADV_DEF_ISA_DMA_SPEED;
 218                         adv->isa_dma_channel = adv_get_isa_dma_channel(adv);
 219                         bus_set_resource(dev, SYS_RES_DRQ, 0,
 220                                          adv->isa_dma_channel, 1);
 221                 } else {
 222                         panic("advisaprobe: Unknown card revision\n");
 223                 }
 224
 225                 /*
 226                  * Allocate a parent dmatag for all tags created
 227                  * by the MI portions of the advansys driver
 228                  */
 229                 /* XXX Should be a child of the ISA bus dma tag */
 230                 error = bus_dma_tag_create(
 231                                 /* parent       */ NULL,
 232                                 /* alignemnt    */ 1,
 233                                 /* boundary     */ 0,
 234                                 /* lowaddr      */ lowaddr,
 235                                 /* highaddr     */ BUS_SPACE_MAXADDR,
 236                                 /* filter       */ NULL,
 237                                 /* filterarg    */ NULL,
 238                                 /* maxsize      */ maxsize,
 239                                 /* nsegments    */ ~0,
 240                                 /* maxsegsz     */ maxsegsz,
 241                                 /* flags        */ 0,
 242                                 /* lockfunc     */ busdma_lock_mutex,
 243                                 /* lockarg      */ &Giant,
 244                                 &adv->parent_dmat);
 245
 246                 if (error != 0) {
 247                         printf("%s: Could not allocate DMA tag - error %d\n",
 248                                adv_name(adv), error);
 249                         adv_free(adv);
 250                         bus_release_resource(dev, SYS_RES_IOPORT, 0, iores);
 251                         break;
 252                 }
 253
 254                 adv->init_level += 2;
 255
 256                 if (overrun_buf == NULL) {
 257                         /* Need to allocate our overrun buffer */
 258                         if (bus_dma_tag_create(
 259                                 /* parent       */ adv->parent_dmat,
 260                                 /* alignment    */ 8,
 261                                 /* boundary     */ 0,
 262                                 /* lowaddr      */ ADV_ISA_MAX_DMA_ADDR,
 263                                 /* highaddr     */ BUS_SPACE_MAXADDR,
 264                                 /* filter       */ NULL,
 265                                 /* filterarg    */ NULL,
 266                                 /* maxsize      */ ADV_OVERRUN_BSIZE,
 267                                 /* nsegments    */ 1,
 268                                 /* maxsegsz     */ BUS_SPACE_MAXSIZE_32BIT,
 269                                 /* flags        */ 0,
 270                                 /* lockfunc     */ NULL,
 271                                 /* lockarg      */ NULL,
 272                                 &overrun_dmat) != 0) {
 273                                 adv_free(adv);
 274                                 bus_release_resource(dev, SYS_RES_IOPORT, 0,
 275                                                      iores);
 276                                 break;
 277                         }
 278                         if (bus_dmamem_alloc(overrun_dmat,
 279                                              (void **)&overrun_buf,
 280                                              BUS_DMA_NOWAIT,
 281                                              &overrun_dmamap) != 0) {
 282                                 bus_dma_tag_destroy(overrun_dmat);
 283                                 adv_free(adv);
 284                                 bus_release_resource(dev, SYS_RES_IOPORT, 0,
 285                                                      iores);
 286                                 break;
 287                         }
 288                         /* And permanently map it in */
 289                         bus_dmamap_load(overrun_dmat, overrun_dmamap,
 290                                         overrun_buf, ADV_OVERRUN_BSIZE,
 291                                         adv_map, &overrun_physbase,
 292                                         /*flags*/0);
 293                 }
 294
 295                 adv->overrun_physbase = overrun_physbase;
 296
 297                 if (adv_init(adv) != 0) {
 298                         bus_dmamap_unload(overrun_dmat, overrun_dmamap);
 299                         bus_dmamem_free(overrun_dmat, overrun_buf,
 300                             overrun_dmamap);
 301                         bus_dma_tag_destroy(overrun_dmat);
 302                         adv_free(adv);
 303                         bus_release_resource(dev, SYS_RES_IOPORT, 0, iores);
 304                         break;
 305                 }
 306
 307                 switch (adv->type) {
 308                 case ADV_ISAPNP:
 309                         if (adv->chip_version == ADV_CHIP_VER_ASYN_BUG) {
 310                                 adv->bug_fix_control
 311                                     |= ADV_BUG_FIX_ASYN_USE_SYN;
 312                                 adv->fix_asyn_xfer = ~0;
 313                         }
 314                         /* Fall Through */
 315                 case ADV_ISA:
 316                         adv->max_dma_count = ADV_ISA_MAX_DMA_COUNT;
 317                         adv->max_dma_addr = ADV_ISA_MAX_DMA_ADDR;
 318                         adv_set_isa_dma_settings(adv);
 319                         break;
 320
 321                 case ADV_VL:
 322                         adv->max_dma_count = ADV_VL_MAX_DMA_COUNT;
 323                         adv->max_dma_addr = ADV_VL_MAX_DMA_ADDR;
 324                         break;
 325                 default:
 326                         panic("advisaprobe: Invalid card type\n");
 327                 }
 328
 329                 /* Determine our IRQ */
 330                 if (bus_get_resource(dev, SYS_RES_IRQ, 0, &irq, NULL))
 331                         bus_set_resource(dev, SYS_RES_IRQ, 0,
 332                                          adv_get_chip_irq(adv), 1);
 333                 else
 334                         adv_set_chip_irq(adv, irq);
 335
 336                 irqres = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid,
 337                                                 RF_ACTIVE);
 338                 if (irqres == NULL ||
 339                     bus_setup_intr(dev, irqres, INTR_TYPE_CAM|INTR_ENTROPY,
 340                         NULL, adv_intr, adv, &ih)) {
 341                         bus_dmamap_unload(overrun_dmat, overrun_dmamap);
 342                         bus_dmamem_free(overrun_dmat, overrun_buf,
 343                             overrun_dmamap);
 344                         bus_dma_tag_destroy(overrun_dmat);
 345                         adv_free(adv);
 346                         bus_release_resource(dev, SYS_RES_IOPORT, 0, iores);
 347                         break;
 348                 }
 349
 350                 /* Mark as probed */
 351                 adv_isa_ioports[port_index] = 0;
 352                 return 0;
 353         }
 354
 355         if (user_iobase)
 356                 bus_set_resource(dev, SYS_RES_IOPORT, 0, iobase, iocount);
 357         else
 358                 bus_delete_resource(dev, SYS_RES_IOPORT, 0);
 359
 360         return ENXIO;
 361 }
 362
 363 static int
 364 adv_isa_attach(device_t dev)
 365 {
 366         struct adv_softc *adv = device_get_softc(dev);
 367
 368         return (adv_attach(adv));
 369 }
 370
 371 static int
 372 adv_get_isa_dma_channel(struct adv_softc *adv)
 373 {
 374         int channel;
 375
 376         channel = ADV_INW(adv, ADV_CONFIG_LSW) & ADV_CFG_LSW_ISA_DMA_CHANNEL;
 377         if (channel == 0x03)
 378                 return (0);
 379         else if (channel == 0x00)
 380                 return (7);
 381         return (channel + 4);
 382 }
 383
 384 static int
 385 adv_set_isa_dma_settings(struct adv_softc *adv)
 386 {
 387         u_int16_t cfg_lsw;
 388         u_int8_t  value;
 389
 390         if ((adv->isa_dma_channel >= 5) && (adv->isa_dma_channel <= 7)) {
 391                 if (adv->isa_dma_channel == 7)
 392                         value = 0x00;
 393                 else
 394                         value = adv->isa_dma_channel - 4;
 395                 cfg_lsw = ADV_INW(adv, ADV_CONFIG_LSW)
 396                         & ~ADV_CFG_LSW_ISA_DMA_CHANNEL;
 397                 cfg_lsw |= value;
 398                 ADV_OUTW(adv, ADV_CONFIG_LSW, cfg_lsw);
 399
 400                 adv->isa_dma_speed &= 0x07;
 401                 adv_set_bank(adv, 1);
 402                 ADV_OUTB(adv, ADV_DMA_SPEED, adv->isa_dma_speed);
 403                 adv_set_bank(adv, 0);
 404                 isa_dmacascade(adv->isa_dma_channel);
 405         }
 406         return (0);
 407 }
 408
 409 static void
 410 adv_set_isapnp_wait_for_key(void)
 411 {
 412         static  int isapnp_wait_set = 0;
 413         if (isapnp_wait_set == 0) {
 414                 outb(ADV_ISA_PNP_PORT_ADDR, 0x02);
 415                 outb(ADV_ISA_PNP_PORT_WRITE, 0x02);
 416                 isapnp_wait_set++;
 417         }
 418 }
 419
 420 static device_method_t adv_isa_methods[] = {
 421         /* Device interface */
 422         DEVMETHOD(device_probe,         adv_isa_probe),
 423         DEVMETHOD(device_attach,        adv_isa_attach),
 424         { 0, 0 }
 425 };
 426
 427 static driver_t adv_isa_driver = {
 428         "adv", adv_isa_methods, sizeof(struct adv_softc)
 429 };
 430
 431 static devclass_t adv_isa_devclass;
 432 DRIVER_MODULE(adv, isa, adv_isa_driver, adv_isa_devclass, 0, 0);
 433 MODULE_DEPEND(adv, isa, 1, 1, 1);