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                                 device_printf(dev,
 139                                     "Invalid baseport of 0x%lx specified. "
 140                                     "Nearest valid baseport is 0x%x.  Failing "
 141                                     "probe.\n", iobase,
 142                                     (port_index <= max_port_index) ?
 143                                     adv_isa_ioports[port_index] :
 144                                     adv_isa_ioports[max_port_index]);
 145                         return ENXIO;
 146                 }
 147                 max_port_index = port_index;
 148         }
 149
 150         /* Perform the actual probing */
 151         adv_set_isapnp_wait_for_key();
 152         for (;port_index <= max_port_index; port_index++) {
 153                 u_int16_t port_addr = adv_isa_ioports[port_index];
 154                 bus_size_t maxsegsz;
 155                 bus_size_t maxsize;
 156                 bus_addr_t lowaddr;
 157                 int error;
 158                 struct adv_softc *adv;
 159
 160                 if (port_addr == 0)
 161                         /* Already been attached */
 162                         continue;
 163
 164                 if (bus_set_resource(dev, SYS_RES_IOPORT, 0, port_addr, 1))
 165                         continue;
 166
 167                 /* XXX what is the real portsize? */
 168                 iores = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid,
 169                                                RF_ACTIVE);
 170                 if (iores == NULL)
 171                         continue;
 172
 173                 if (adv_find_signature(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, iores, 0);
 183                 if (adv == NULL) {
 184                         bus_release_resource(dev, SYS_RES_IOPORT, 0, iores);
 185                         break;
 186                 }
 187
 188                 /*
 189                  * Stop the chip.
 190                  */
 191                 ADV_OUTB(adv, ADV_CHIP_CTRL, ADV_CC_HALT);
 192                 ADV_OUTW(adv, ADV_CHIP_STATUS, 0);
 193                 /*
 194                  * Determine the chip version.
 195                  */
 196                 adv->chip_version = ADV_INB(adv, ADV_NONEISA_CHIP_REVISION);
 197                 if ((adv->chip_version >= ADV_CHIP_MIN_VER_VL)
 198                     && (adv->chip_version <= ADV_CHIP_MAX_VER_VL)) {
 199                         adv->type = ADV_VL;
 200                         maxsegsz = ADV_VL_MAX_DMA_COUNT;
 201                         maxsize = BUS_SPACE_MAXSIZE_32BIT;
 202                         lowaddr = ADV_VL_MAX_DMA_ADDR;
 203                         bus_delete_resource(dev, SYS_RES_DRQ, 0);
 204                 } else if ((adv->chip_version >= ADV_CHIP_MIN_VER_ISA)
 205                            && (adv->chip_version <= ADV_CHIP_MAX_VER_ISA)) {
 206                         if (adv->chip_version >= ADV_CHIP_MIN_VER_ISA_PNP) {
 207                                 adv->type = ADV_ISAPNP;
 208                                 ADV_OUTB(adv, ADV_REG_IFC,
 209                                          ADV_IFC_INIT_DEFAULT);
 210                         } else {
 211                                 adv->type = ADV_ISA;
 212                         }
 213                         maxsegsz = ADV_ISA_MAX_DMA_COUNT;
 214                         maxsize = BUS_SPACE_MAXSIZE_24BIT;
 215                         lowaddr = ADV_ISA_MAX_DMA_ADDR;
 216                         adv->isa_dma_speed = ADV_DEF_ISA_DMA_SPEED;
 217                         adv->isa_dma_channel = adv_get_isa_dma_channel(adv);
 218                         bus_set_resource(dev, SYS_RES_DRQ, 0,
 219                                          adv->isa_dma_channel, 1);
 220                 } else {
 221                         panic("advisaprobe: Unknown card revision\n");
 222                 }
 223
 224                 /*
 225                  * Allocate a parent dmatag for all tags created
 226                  * by the MI portions of the advansys driver
 227                  */
 228                 error = bus_dma_tag_create(
 229                                 /* parent       */ bus_get_dma_tag(dev),
 230                                 /* alignemnt    */ 1,
 231                                 /* boundary     */ 0,
 232                                 /* lowaddr      */ lowaddr,
 233                                 /* highaddr     */ BUS_SPACE_MAXADDR,
 234                                 /* filter       */ NULL,
 235                                 /* filterarg    */ NULL,
 236                                 /* maxsize      */ maxsize,
 237                                 /* nsegments    */ ~0,
 238                                 /* maxsegsz     */ maxsegsz,
 239                                 /* flags        */ 0,
 240                                 /* lockfunc     */ NULL,
 241                                 /* lockarg      */ NULL,
 242                                 &adv->parent_dmat);
 243
 244                 if (error != 0) {
 245                         device_printf(dev,
 246                             "Could not allocate DMA tag - error %d\n", error);
 247                         adv_free(adv);
 248                         bus_release_resource(dev, SYS_RES_IOPORT, 0, iores);
 249                         break;
 250                 }
 251
 252                 adv->init_level += 2;
 253
 254                 if (overrun_buf == NULL) {
 255                         /* Need to allocate our overrun buffer */
 256                         if (bus_dma_tag_create(
 257                                 /* parent       */ adv->parent_dmat,
 258                                 /* alignment    */ 8,
 259                                 /* boundary     */ 0,
 260                                 /* lowaddr      */ ADV_ISA_MAX_DMA_ADDR,
 261                                 /* highaddr     */ BUS_SPACE_MAXADDR,
 262                                 /* filter       */ NULL,
 263                                 /* filterarg    */ NULL,
 264                                 /* maxsize      */ ADV_OVERRUN_BSIZE,
 265                                 /* nsegments    */ 1,
 266                                 /* maxsegsz     */ BUS_SPACE_MAXSIZE_32BIT,
 267                                 /* flags        */ 0,
 268                                 /* lockfunc     */ NULL,
 269                                 /* lockarg      */ NULL,
 270                                 &overrun_dmat) != 0) {
 271                                 adv_free(adv);
 272                                 bus_release_resource(dev, SYS_RES_IOPORT, 0,
 273                                                      iores);
 274                                 break;
 275                         }
 276                         if (bus_dmamem_alloc(overrun_dmat,
 277                                              (void **)&overrun_buf,
 278                                              BUS_DMA_NOWAIT,
 279                                              &overrun_dmamap) != 0) {
 280                                 bus_dma_tag_destroy(overrun_dmat);
 281                                 adv_free(adv);
 282                                 bus_release_resource(dev, SYS_RES_IOPORT, 0,
 283                                                      iores);
 284                                 break;
 285                         }
 286                         /* And permanently map it in */
 287                         bus_dmamap_load(overrun_dmat, overrun_dmamap,
 288                                         overrun_buf, ADV_OVERRUN_BSIZE,
 289                                         adv_map, &overrun_physbase,
 290                                         /*flags*/0);
 291                 }
 292
 293                 adv->overrun_physbase = overrun_physbase;
 294
 295                 if (adv_init(adv) != 0) {
 296                         bus_dmamap_unload(overrun_dmat, overrun_dmamap);
 297                         bus_dmamem_free(overrun_dmat, overrun_buf,
 298                             overrun_dmamap);
 299                         bus_dma_tag_destroy(overrun_dmat);
 300                         adv_free(adv);
 301                         bus_release_resource(dev, SYS_RES_IOPORT, 0, iores);
 302                         break;
 303                 }
 304
 305                 switch (adv->type) {
 306                 case ADV_ISAPNP:
 307                         if (adv->chip_version == ADV_CHIP_VER_ASYN_BUG) {
 308                                 adv->bug_fix_control
 309                                     |= ADV_BUG_FIX_ASYN_USE_SYN;
 310                                 adv->fix_asyn_xfer = ~0;
 311                         }
 312                         /* Fall Through */
 313                 case ADV_ISA:
 314                         adv->max_dma_count = ADV_ISA_MAX_DMA_COUNT;
 315                         adv->max_dma_addr = ADV_ISA_MAX_DMA_ADDR;
 316                         adv_set_isa_dma_settings(adv);
 317                         break;
 318
 319                 case ADV_VL:
 320                         adv->max_dma_count = ADV_VL_MAX_DMA_COUNT;
 321                         adv->max_dma_addr = ADV_VL_MAX_DMA_ADDR;
 322                         break;
 323                 default:
 324                         panic("advisaprobe: Invalid card type\n");
 325                 }
 326
 327                 /* Determine our IRQ */
 328                 if (bus_get_resource(dev, SYS_RES_IRQ, 0, &irq, NULL))
 329                         bus_set_resource(dev, SYS_RES_IRQ, 0,
 330                                          adv_get_chip_irq(adv), 1);
 331                 else
 332                         adv_set_chip_irq(adv, irq);
 333
 334                 irqres = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid,
 335                                                 RF_ACTIVE);
 336                 if (irqres == NULL ||
 337                     bus_setup_intr(dev, irqres, INTR_TYPE_CAM|INTR_ENTROPY|
 338                     INTR_MPSAFE, NULL, adv_intr, adv, &ih) != 0) {
 339                         if (irqres != NULL)
 340                                 bus_release_resource(dev, SYS_RES_IRQ, rid,
 341                                     irqres);
 342                         bus_dmamap_unload(overrun_dmat, overrun_dmamap);
 343                         bus_dmamem_free(overrun_dmat, overrun_buf,
 344                             overrun_dmamap);
 345                         bus_dma_tag_destroy(overrun_dmat);
 346                         adv_free(adv);
 347                         bus_release_resource(dev, SYS_RES_IOPORT, 0, iores);
 348                         break;
 349                 }
 350
 351                 /* Mark as probed */
 352                 adv_isa_ioports[port_index] = 0;
 353                 return 0;
 354         }
 355
 356         if (user_iobase)
 357                 bus_set_resource(dev, SYS_RES_IOPORT, 0, iobase, iocount);
 358         else
 359                 bus_delete_resource(dev, SYS_RES_IOPORT, 0);
 360
 361         return ENXIO;
 362 }
 363
 364 static int
 365 adv_isa_attach(device_t dev)
 366 {
 367         struct adv_softc *adv = device_get_softc(dev);
 368
 369         return (adv_attach(adv));
 370 }
 371
 372 static int
 373 adv_get_isa_dma_channel(struct adv_softc *adv)
 374 {
 375         int channel;
 376
 377         channel = ADV_INW(adv, ADV_CONFIG_LSW) & ADV_CFG_LSW_ISA_DMA_CHANNEL;
 378         if (channel == 0x03)
 379                 return (0);
 380         else if (channel == 0x00)
 381                 return (7);
 382         return (channel + 4);
 383 }
 384
 385 static int
 386 adv_set_isa_dma_settings(struct adv_softc *adv)
 387 {
 388         u_int16_t cfg_lsw;
 389         u_int8_t  value;
 390
 391         if ((adv->isa_dma_channel >= 5) && (adv->isa_dma_channel <= 7)) {
 392                 if (adv->isa_dma_channel == 7)
 393                         value = 0x00;
 394                 else
 395                         value = adv->isa_dma_channel - 4;
 396                 cfg_lsw = ADV_INW(adv, ADV_CONFIG_LSW)
 397                         & ~ADV_CFG_LSW_ISA_DMA_CHANNEL;
 398                 cfg_lsw |= value;
 399                 ADV_OUTW(adv, ADV_CONFIG_LSW, cfg_lsw);
 400
 401                 adv->isa_dma_speed &= 0x07;
 402                 adv_set_bank(adv, 1);
 403                 ADV_OUTB(adv, ADV_DMA_SPEED, adv->isa_dma_speed);
 404                 adv_set_bank(adv, 0);
 405                 isa_dmacascade(adv->isa_dma_channel);
 406         }
 407         return (0);
 408 }
 409
 410 static void
 411 adv_set_isapnp_wait_for_key(void)
 412 {
 413         static  int isapnp_wait_set = 0;
 414         if (isapnp_wait_set == 0) {
 415                 outb(ADV_ISA_PNP_PORT_ADDR, 0x02);
 416                 outb(ADV_ISA_PNP_PORT_WRITE, 0x02);
 417                 isapnp_wait_set++;
 418         }
 419 }
 420
 421 static device_method_t adv_isa_methods[] = {
 422         /* Device interface */
 423         DEVMETHOD(device_probe,         adv_isa_probe),
 424         DEVMETHOD(device_attach,        adv_isa_attach),
 425         { 0, 0 }
 426 };
 427
 428 static driver_t adv_isa_driver = {
 429         "adv", adv_isa_methods, sizeof(struct adv_softc)
 430 };
 431
 432 static devclass_t adv_isa_devclass;
 433 DRIVER_MODULE(adv, isa, adv_isa_driver, adv_isa_devclass, 0, 0);
 434 MODULE_DEPEND(adv, isa, 1, 1, 1);