sys/dev/disk/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  * $FreeBSD: src/sys/dev/advansys/adv_isa.c,v 1.14.2.5 2002/01/06 21:21:42 dwmalone Exp $
  48  */
  49
  50 #include <sys/param.h>
  51 #include <sys/systm.h>
  52 #include <sys/kernel.h>
  53 #include <sys/bus.h>
  54 #include <sys/rman.h>
  55
  56 #include <bus/isa/isavar.h>
  57
  58 #include "advansys.h"
  59
  60 #include <bus/cam/scsi/scsi_all.h>
  61
  62 #define ADV_ISA_MAX_DMA_ADDR    (0x00FFFFFFL)
  63 #define ADV_ISA_MAX_DMA_COUNT   (0x00FFFFFFL)
  64
  65 #define ADV_VL_MAX_DMA_ADDR     (0x07FFFFFFL)
  66 #define ADV_VL_MAX_DMA_COUNT    (0x07FFFFFFL)
  67
  68 /*
  69  * The overrun buffer shared amongst all ISA/VL adapters.
  70  */
  71 static  u_int8_t*       overrun_buf;
  72 static  bus_dma_tag_t   overrun_dmat;
  73 static  bus_dmamap_t    overrun_dmamap;
  74 static  bus_addr_t      overrun_physbase;
  75
  76 /* Possible port addresses an ISA or VL adapter can live at */
  77 static u_int16_t adv_isa_ioports[] =
  78 {
  79         0x100,
  80         0x110,  /* First selection in BIOS setup */
  81         0x120,
  82         0x130,  /* Second selection in BIOS setup */
  83         0x140,
  84         0x150,  /* Third selection in BIOS setup */
  85         0x190,  /* Fourth selection in BIOS setup */
  86         0x210,  /* Fifth selection in BIOS setup */
  87         0x230,  /* Sixth selection in BIOS setup */
  88         0x250,  /* Seventh selection in BIOS setup */
  89         0x330   /* Eighth and default selection in BIOS setup */
  90 };
  91
  92 #define MAX_ISA_IOPORT_INDEX (sizeof(adv_isa_ioports)/sizeof(u_int16_t) - 1)
  93
  94 static  int     adv_isa_probe(device_t dev);
  95 static  int     adv_isa_attach(device_t dev);
  96 static  void    adv_set_isapnp_wait_for_key(void);
  97 static  int     adv_get_isa_dma_channel(struct adv_softc *adv);
  98 static  int     adv_set_isa_dma_settings(struct adv_softc *adv);
  99
 100 static int
 101 adv_isa_probe(device_t dev)
 102 {
 103         int     port_index;
 104         int     max_port_index;
 105         u_long  iobase, iocount, irq;
 106         int     user_iobase = 0;
 107         int     rid = 0;
 108         void    *ih;
 109         struct resource *iores, *irqres;
 110
 111         /*
 112          * Default to scanning all possible device locations.
 113          */
 114         port_index = 0;
 115         max_port_index = MAX_ISA_IOPORT_INDEX;
 116
 117         if (bus_get_resource(dev, SYS_RES_IOPORT, 0, &iobase, &iocount) == 0) {
 118                 user_iobase = 1;
 119                 for (;port_index <= max_port_index; port_index++)
 120                         if (iobase <= adv_isa_ioports[port_index])
 121                                 break;
 122                 if ((port_index > max_port_index)
 123                  || (iobase != adv_isa_ioports[port_index])) {
 124                         if (bootverbose)
 125                             kprintf("adv%d: Invalid baseport of 0x%lx specified. "
 126                                 "Nearest valid baseport is 0x%x.  Failing "
 127                                 "probe.\n", device_get_unit(dev), iobase,
 128                                 (port_index <= max_port_index) ?
 129                                         adv_isa_ioports[port_index] :
 130                                         adv_isa_ioports[max_port_index]);
 131                         return ENXIO;
 132                 }
 133                 max_port_index = port_index;
 134         }
 135
 136         /* Perform the actual probing */
 137         adv_set_isapnp_wait_for_key();
 138         for (;port_index <= max_port_index; port_index++) {
 139                 u_int16_t port_addr = adv_isa_ioports[port_index];
 140                 bus_size_t maxsegsz;
 141                 bus_size_t maxsize;
 142                 bus_addr_t lowaddr;
 143                 int error;
 144                 struct adv_softc *adv;
 145
 146                 if (port_addr == 0)
 147                         /* Already been attached */
 148                         continue;
 149
 150                 if (bus_set_resource(dev, SYS_RES_IOPORT, 0, port_addr, 1))
 151                         continue;
 152
 153                 /* XXX what is the real portsize? */
 154                 iores = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 0, ~0, 1,
 155                                            RF_ACTIVE);
 156                 if (iores == NULL)
 157                         continue;
 158
 159                 if (adv_find_signature(rman_get_bustag(iores),
 160                                        rman_get_bushandle(iores)) == 0) {
 161                         bus_release_resource(dev, SYS_RES_IOPORT, 0, iores);
 162                         continue;
 163                 }
 164
 165                 /*
 166                  * Got one.  Now allocate our softc
 167                  * and see if we can initialize the card.
 168                  */
 169                 adv = adv_alloc(dev, rman_get_bustag(iores),
 170                                 rman_get_bushandle(iores));
 171                 if (adv == NULL) {
 172                         bus_release_resource(dev, SYS_RES_IOPORT, 0, iores);
 173                         break;
 174                 }
 175
 176                 /*
 177                  * Stop the chip.
 178                  */
 179                 ADV_OUTB(adv, ADV_CHIP_CTRL, ADV_CC_HALT);
 180                 ADV_OUTW(adv, ADV_CHIP_STATUS, 0);
 181                 /*
 182                  * Determine the chip version.
 183                  */
 184                 adv->chip_version = ADV_INB(adv, ADV_NONEISA_CHIP_REVISION);
 185                 if ((adv->chip_version >= ADV_CHIP_MIN_VER_VL)
 186                     && (adv->chip_version <= ADV_CHIP_MAX_VER_VL)) {
 187                         adv->type = ADV_VL;
 188                         maxsegsz = ADV_VL_MAX_DMA_COUNT;
 189                         maxsize = BUS_SPACE_MAXSIZE_32BIT;
 190                         lowaddr = ADV_VL_MAX_DMA_ADDR;
 191                         bus_delete_resource(dev, SYS_RES_DRQ, 0);
 192                 } else if ((adv->chip_version >= ADV_CHIP_MIN_VER_ISA)
 193                            && (adv->chip_version <= ADV_CHIP_MAX_VER_ISA)) {
 194                         if (adv->chip_version >= ADV_CHIP_MIN_VER_ISA_PNP) {
 195                                 adv->type = ADV_ISAPNP;
 196                                 ADV_OUTB(adv, ADV_REG_IFC,
 197                                          ADV_IFC_INIT_DEFAULT);
 198                         } else {
 199                                 adv->type = ADV_ISA;
 200                         }
 201                         maxsegsz = ADV_ISA_MAX_DMA_COUNT;
 202                         maxsize = BUS_SPACE_MAXSIZE_24BIT;
 203                         lowaddr = ADV_ISA_MAX_DMA_ADDR;
 204                         adv->isa_dma_speed = ADV_DEF_ISA_DMA_SPEED;
 205                         adv->isa_dma_channel = adv_get_isa_dma_channel(adv);
 206                         bus_set_resource(dev, SYS_RES_DRQ, 0,
 207                                          adv->isa_dma_channel, 1);
 208                 } else {
 209                         panic("advisaprobe: Unknown card revision\n");
 210                 }
 211
 212                 /*
 213                  * Allocate a parent dmatag for all tags created
 214                  * by the MI portions of the advansys driver
 215                  */
 216                 /* XXX Should be a child of the ISA bus dma tag */
 217                 error = bus_dma_tag_create(/*parent*/NULL,
 218                                            /*alignemnt*/1,
 219                                            /*boundary*/0,
 220                                            lowaddr,
 221                                            /*highaddr*/BUS_SPACE_MAXADDR,
 222                                            /*filter*/NULL,
 223                                            /*filterarg*/NULL,
 224                                            maxsize,
 225                                            /*nsegs*/BUS_SPACE_UNRESTRICTED,
 226                                            maxsegsz,
 227                                            /*flags*/0,
 228                                            &adv->parent_dmat);
 229
 230                 if (error != 0) {
 231                         kprintf("%s: Could not allocate DMA tag - error %d\n",
 232                                adv_name(adv), error);
 233                         adv_free(adv);
 234                         bus_release_resource(dev, SYS_RES_IOPORT, 0, iores);
 235                         break;
 236                 }
 237
 238                 adv->init_level += 2;
 239
 240                 if (overrun_buf == NULL) {
 241                         /* Need to allocate our overrun buffer */
 242                         if (bus_dma_tag_create(adv->parent_dmat,
 243                                                /*alignment*/8,
 244                                                /*boundary*/0,
 245                                                ADV_ISA_MAX_DMA_ADDR,
 246                                                BUS_SPACE_MAXADDR,
 247                                                /*filter*/NULL,
 248                                                /*filterarg*/NULL,
 249                                                ADV_OVERRUN_BSIZE,
 250                                                /*nsegments*/1,
 251                                                BUS_SPACE_MAXSIZE_32BIT,
 252                                                /*flags*/0,
 253                                                &overrun_dmat) != 0) {
 254                                 adv_free(adv);
 255                                 bus_release_resource(dev, SYS_RES_IOPORT, 0,
 256                                                      iores);
 257                                 break;
 258                         }
 259                         if (bus_dmamem_alloc(overrun_dmat,
 260                                              (void **)&overrun_buf,
 261                                              BUS_DMA_NOWAIT,
 262                                              &overrun_dmamap) != 0) {
 263                                 bus_dma_tag_destroy(overrun_dmat);
 264                                 adv_free(adv);
 265                                 bus_release_resource(dev, SYS_RES_IOPORT, 0,
 266                                                      iores);
 267                                 break;
 268                         }
 269                         /* And permanently map it in */
 270                         bus_dmamap_load(overrun_dmat, overrun_dmamap,
 271                                         overrun_buf, ADV_OVERRUN_BSIZE,
 272                                         adv_map, &overrun_physbase,
 273                                         /*flags*/0);
 274                 }
 275
 276                 adv->overrun_physbase = overrun_physbase;
 277
 278                 if (adv_init(adv) != 0) {
 279                         bus_dmamap_unload(overrun_dmat, overrun_dmamap);
 280                         bus_dmamem_free(overrun_dmat, overrun_buf,
 281                             overrun_dmamap);
 282                         bus_dma_tag_destroy(overrun_dmat);
 283                         adv_free(adv);
 284                         bus_release_resource(dev, SYS_RES_IOPORT, 0, iores);
 285                         break;
 286                 }
 287
 288                 switch (adv->type) {
 289                 case ADV_ISAPNP:
 290                         if (adv->chip_version == ADV_CHIP_VER_ASYN_BUG) {
 291                                 adv->bug_fix_control
 292                                     |= ADV_BUG_FIX_ASYN_USE_SYN;
 293                                 adv->fix_asyn_xfer = ~0;
 294                         }
 295                         /* Fall Through */
 296                 case ADV_ISA:
 297                         adv->max_dma_count = ADV_ISA_MAX_DMA_COUNT;
 298                         adv->max_dma_addr = ADV_ISA_MAX_DMA_ADDR;
 299                         adv_set_isa_dma_settings(adv);
 300                         break;
 301
 302                 case ADV_VL:
 303                         adv->max_dma_count = ADV_VL_MAX_DMA_COUNT;
 304                         adv->max_dma_addr = ADV_VL_MAX_DMA_ADDR;
 305                         break;
 306                 default:
 307                         panic("advisaprobe: Invalid card type\n");
 308                 }
 309
 310                 /* Determine our IRQ */
 311                 if (bus_get_resource(dev, SYS_RES_IRQ, 0, &irq, NULL))
 312                         bus_set_resource(dev, SYS_RES_IRQ, 0,
 313                                          adv_get_chip_irq(adv), 1);
 314                 else
 315                         adv_set_chip_irq(adv, irq);
 316
 317                 irqres = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 0, ~0, 1,
 318                                             RF_ACTIVE);
 319                 if (irqres == NULL ||
 320                     bus_setup_intr(dev, irqres, 0, adv_intr, adv,
 321                                    &ih, NULL)) {
 322                         bus_dmamap_unload(overrun_dmat, overrun_dmamap);
 323                         bus_dmamem_free(overrun_dmat, overrun_buf,
 324                             overrun_dmamap);
 325                         bus_dma_tag_destroy(overrun_dmat);
 326                         adv_free(adv);
 327                         bus_release_resource(dev, SYS_RES_IOPORT, 0, iores);
 328                         break;
 329                 }
 330
 331                 /* Mark as probed */
 332                 adv_isa_ioports[port_index] = 0;
 333                 return 0;
 334         }
 335
 336         if (user_iobase)
 337                 bus_set_resource(dev, SYS_RES_IOPORT, 0, iobase, iocount);
 338         else
 339                 bus_delete_resource(dev, SYS_RES_IOPORT, 0);
 340
 341         return ENXIO;
 342 }
 343
 344 static int
 345 adv_isa_attach(device_t dev)
 346 {
 347         struct adv_softc *adv = device_get_softc(dev);
 348
 349         return (adv_attach(adv));
 350 }
 351
 352 static int
 353 adv_get_isa_dma_channel(struct adv_softc *adv)
 354 {
 355         int channel;
 356
 357         channel = ADV_INW(adv, ADV_CONFIG_LSW) & ADV_CFG_LSW_ISA_DMA_CHANNEL;
 358         if (channel == 0x03)
 359                 return (0);
 360         else if (channel == 0x00)
 361                 return (7);
 362         return (channel + 4);
 363 }
 364
 365 static int
 366 adv_set_isa_dma_settings(struct adv_softc *adv)
 367 {
 368         u_int16_t cfg_lsw;
 369         u_int8_t  value;
 370
 371         if ((adv->isa_dma_channel >= 5) && (adv->isa_dma_channel <= 7)) {
 372                 if (adv->isa_dma_channel == 7)
 373                         value = 0x00;
 374                 else
 375                         value = adv->isa_dma_channel - 4;
 376                 cfg_lsw = ADV_INW(adv, ADV_CONFIG_LSW)
 377                         & ~ADV_CFG_LSW_ISA_DMA_CHANNEL;
 378                 cfg_lsw |= value;
 379                 ADV_OUTW(adv, ADV_CONFIG_LSW, cfg_lsw);
 380
 381                 adv->isa_dma_speed &= 0x07;
 382                 adv_set_bank(adv, 1);
 383                 ADV_OUTB(adv, ADV_DMA_SPEED, adv->isa_dma_speed);
 384                 adv_set_bank(adv, 0);
 385                 isa_dmacascade(adv->isa_dma_channel);
 386         }
 387         return (0);
 388 }
 389
 390 static void
 391 adv_set_isapnp_wait_for_key(void)
 392 {
 393         static  int isapnp_wait_set = 0;
 394         if (isapnp_wait_set == 0) {
 395                 outb(ADV_ISA_PNP_PORT_ADDR, 0x02);
 396                 outb(ADV_ISA_PNP_PORT_WRITE, 0x02);
 397                 isapnp_wait_set++;
 398         }
 399 }
 400
 401 static device_method_t adv_isa_methods[] = {
 402         /* Device interface */
 403         DEVMETHOD(device_probe,         adv_isa_probe),
 404         DEVMETHOD(device_attach,        adv_isa_attach),
 405         { 0, 0 }
 406 };
 407
 408 static driver_t adv_isa_driver = {
 409         "adv", adv_isa_methods, sizeof(struct adv_softc)
 410 };
 411
 412 static devclass_t adv_isa_devclass;
 413 DRIVER_MODULE(adv, isa, adv_isa_driver, adv_isa_devclass, NULL, NULL);