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
  54 #include <machine/bus_pio.h>
  55 #include <machine/bus.h>
  56 #include <machine/resource.h>
  57 #include <sys/bus.h>
  58 #include <sys/rman.h>
  59
  60 #include <isa/isavar.h>
  61
  62 #include <dev/advansys/advansys.h>
  63
  64 #include <cam/scsi/scsi_all.h>
  65
  66 #define ADV_ISA_MAX_DMA_ADDR    (0x00FFFFFFL)
  67 #define ADV_ISA_MAX_DMA_COUNT   (0x00FFFFFFL)
  68
  69 #define ADV_VL_MAX_DMA_ADDR     (0x07FFFFFFL)
  70 #define ADV_VL_MAX_DMA_COUNT    (0x07FFFFFFL)
  71
  72 /*
  73  * The overrun buffer shared amongst all ISA/VL adapters.
  74  */
  75 static  u_int8_t*       overrun_buf;
  76 static  bus_dma_tag_t   overrun_dmat;
  77 static  bus_dmamap_t    overrun_dmamap;
  78 static  bus_addr_t      overrun_physbase;
  79
  80 /* Possible port addresses an ISA or VL adapter can live at */
  81 static u_int16_t adv_isa_ioports[] =
  82 {
  83         0x100,
  84         0x110,  /* First selection in BIOS setup */
  85         0x120,
  86         0x130,  /* Second selection in BIOS setup */
  87         0x140,
  88         0x150,  /* Third selection in BIOS setup */
  89         0x190,  /* Fourth selection in BIOS setup */
  90         0x210,  /* Fifth selection in BIOS setup */
  91         0x230,  /* Sixth selection in BIOS setup */
  92         0x250,  /* Seventh selection in BIOS setup */
  93         0x330   /* Eighth and default selection in BIOS setup */
  94 };
  95
  96 #define MAX_ISA_IOPORT_INDEX (sizeof(adv_isa_ioports)/sizeof(u_int16_t) - 1)
  97
  98 static  int     adv_isa_probe(device_t dev);
  99 static  int     adv_isa_attach(device_t dev);
 100 static  void    adv_set_isapnp_wait_for_key(void);
 101 static  int     adv_get_isa_dma_channel(struct adv_softc *adv);
 102 static  int     adv_set_isa_dma_settings(struct adv_softc *adv);
 103
 104 static int
 105 adv_isa_probe(device_t dev)
 106 {
 107         int     port_index;
 108         int     max_port_index;
 109         u_long  iobase, iocount, irq;
 110         int     user_iobase = 0;
 111         int     rid = 0;
 112         void    *ih;
 113         struct resource *iores, *irqres;
 114
 115         /*
 116          * Default to scanning all possible device locations.
 117          */
 118         port_index = 0;
 119         max_port_index = MAX_ISA_IOPORT_INDEX;
 120
 121         if (bus_get_resource(dev, SYS_RES_IOPORT, 0, &iobase, &iocount) == 0) {
 122                 user_iobase = 1;
 123                 for (;port_index <= max_port_index; port_index++)
 124                         if (iobase <= adv_isa_ioports[port_index])
 125                                 break;
 126                 if ((port_index > max_port_index)
 127                  || (iobase != adv_isa_ioports[port_index])) {
 128                         if (bootverbose)
 129                             printf("adv%d: Invalid baseport of 0x%lx specified. "
 130                                 "Nearest valid baseport is 0x%x.  Failing "
 131                                 "probe.\n", device_get_unit(dev), iobase,
 132                                 (port_index <= max_port_index) ?
 133                                         adv_isa_ioports[port_index] :
 134                                         adv_isa_ioports[max_port_index]);
 135                         return ENXIO;
 136                 }
 137                 max_port_index = port_index;
 138         }
 139
 140         /* Perform the actual probing */
 141         adv_set_isapnp_wait_for_key();
 142         for (;port_index <= max_port_index; port_index++) {
 143                 u_int16_t port_addr = adv_isa_ioports[port_index];
 144                 bus_size_t maxsegsz;
 145                 bus_size_t maxsize;
 146                 bus_addr_t lowaddr;
 147                 int error;
 148                 struct adv_softc *adv;
 149
 150                 if (port_addr == 0)
 151                         /* Already been attached */
 152                         continue;
 153
 154                 if (bus_set_resource(dev, SYS_RES_IOPORT, 0, port_addr, 1))
 155                         continue;
 156
 157                 /* XXX what is the real portsize? */
 158                 iores = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 0, ~0, 1,
 159                                            RF_ACTIVE);
 160                 if (iores == NULL)
 161                         continue;
 162
 163                 if (adv_find_signature(rman_get_bustag(iores),
 164                                        rman_get_bushandle(iores)) == 0) {
 165                         bus_release_resource(dev, SYS_RES_IOPORT, 0, iores);
 166                         continue;
 167                 }
 168
 169                 /*
 170                  * Got one.  Now allocate our softc
 171                  * and see if we can initialize the card.
 172                  */
 173                 adv = adv_alloc(dev, rman_get_bustag(iores),
 174                                 rman_get_bushandle(iores));
 175                 if (adv == NULL) {
 176                         bus_release_resource(dev, SYS_RES_IOPORT, 0, iores);
 177                         break;
 178                 }
 179
 180                 /*
 181                  * Stop the chip.
 182                  */
 183                 ADV_OUTB(adv, ADV_CHIP_CTRL, ADV_CC_HALT);
 184                 ADV_OUTW(adv, ADV_CHIP_STATUS, 0);
 185                 /*
 186                  * Determine the chip version.
 187                  */
 188                 adv->chip_version = ADV_INB(adv, ADV_NONEISA_CHIP_REVISION);
 189                 if ((adv->chip_version >= ADV_CHIP_MIN_VER_VL)
 190                     && (adv->chip_version <= ADV_CHIP_MAX_VER_VL)) {
 191                         adv->type = ADV_VL;
 192                         maxsegsz = ADV_VL_MAX_DMA_COUNT;
 193                         maxsize = BUS_SPACE_MAXSIZE_32BIT;
 194                         lowaddr = ADV_VL_MAX_DMA_ADDR;
 195                         bus_delete_resource(dev, SYS_RES_DRQ, 0);
 196                 } else if ((adv->chip_version >= ADV_CHIP_MIN_VER_ISA)
 197                            && (adv->chip_version <= ADV_CHIP_MAX_VER_ISA)) {
 198                         if (adv->chip_version >= ADV_CHIP_MIN_VER_ISA_PNP) {
 199                                 adv->type = ADV_ISAPNP;
 200                                 ADV_OUTB(adv, ADV_REG_IFC,
 201                                          ADV_IFC_INIT_DEFAULT);
 202                         } else {
 203                                 adv->type = ADV_ISA;
 204                         }
 205                         maxsegsz = ADV_ISA_MAX_DMA_COUNT;
 206                         maxsize = BUS_SPACE_MAXSIZE_24BIT;
 207                         lowaddr = ADV_ISA_MAX_DMA_ADDR;
 208                         adv->isa_dma_speed = ADV_DEF_ISA_DMA_SPEED;
 209                         adv->isa_dma_channel = adv_get_isa_dma_channel(adv);
 210                         bus_set_resource(dev, SYS_RES_DRQ, 0,
 211                                          adv->isa_dma_channel, 1);
 212                 } else {
 213                         panic("advisaprobe: Unknown card revision\n");
 214                 }
 215
 216                 /*
 217                  * Allocate a parent dmatag for all tags created
 218                  * by the MI portions of the advansys driver
 219                  */
 220                 /* XXX Should be a child of the ISA bus dma tag */
 221                 error = bus_dma_tag_create(/*parent*/NULL,
 222                                            /*alignemnt*/1,
 223                                            /*boundary*/0,
 224                                            lowaddr,
 225                                            /*highaddr*/BUS_SPACE_MAXADDR,
 226                                            /*filter*/NULL,
 227                                            /*filterarg*/NULL,
 228                                            maxsize,
 229                                            /*nsegs*/BUS_SPACE_UNRESTRICTED,
 230                                            maxsegsz,
 231                                            /*flags*/0,
 232                                            &adv->parent_dmat);
 233
 234                 if (error != 0) {
 235                         printf("%s: Could not allocate DMA tag - error %d\n",
 236                                adv_name(adv), error);
 237                         adv_free(adv);
 238                         bus_release_resource(dev, SYS_RES_IOPORT, 0, iores);
 239                         break;
 240                 }
 241
 242                 adv->init_level += 2;
 243
 244                 if (overrun_buf == NULL) {
 245                         /* Need to allocate our overrun buffer */
 246                         if (bus_dma_tag_create(adv->parent_dmat,
 247                                                /*alignment*/8,
 248                                                /*boundary*/0,
 249                                                ADV_ISA_MAX_DMA_ADDR,
 250                                                BUS_SPACE_MAXADDR,
 251                                                /*filter*/NULL,
 252                                                /*filterarg*/NULL,
 253                                                ADV_OVERRUN_BSIZE,
 254                                                /*nsegments*/1,
 255                                                BUS_SPACE_MAXSIZE_32BIT,
 256                                                /*flags*/0,
 257                                                &overrun_dmat) != 0) {
 258                                 adv_free(adv);
 259                                 bus_release_resource(dev, SYS_RES_IOPORT, 0,
 260                                                      iores);
 261                                 break;
 262                         }
 263                         if (bus_dmamem_alloc(overrun_dmat,
 264                                              (void **)&overrun_buf,
 265                                              BUS_DMA_NOWAIT,
 266                                              &overrun_dmamap) != 0) {
 267                                 bus_dma_tag_destroy(overrun_dmat);
 268                                 adv_free(adv);
 269                                 bus_release_resource(dev, SYS_RES_IOPORT, 0,
 270                                                      iores);
 271                                 break;
 272                         }
 273                         /* And permanently map it in */
 274                         bus_dmamap_load(overrun_dmat, overrun_dmamap,
 275                                         overrun_buf, ADV_OVERRUN_BSIZE,
 276                                         adv_map, &overrun_physbase,
 277                                         /*flags*/0);
 278                 }
 279
 280                 adv->overrun_physbase = overrun_physbase;
 281
 282                 if (adv_init(adv) != 0) {
 283                         bus_dmamap_unload(overrun_dmat, overrun_dmamap);
 284                         bus_dmamem_free(overrun_dmat, overrun_buf,
 285                             overrun_dmamap);
 286                         bus_dma_tag_destroy(overrun_dmat);
 287                         adv_free(adv);
 288                         bus_release_resource(dev, SYS_RES_IOPORT, 0, iores);
 289                         break;
 290                 }
 291
 292                 switch (adv->type) {
 293                 case ADV_ISAPNP:
 294                         if (adv->chip_version == ADV_CHIP_VER_ASYN_BUG) {
 295                                 adv->bug_fix_control
 296                                     |= ADV_BUG_FIX_ASYN_USE_SYN;
 297                                 adv->fix_asyn_xfer = ~0;
 298                         }
 299                         /* Fall Through */
 300                 case ADV_ISA:
 301                         adv->max_dma_count = ADV_ISA_MAX_DMA_COUNT;
 302                         adv->max_dma_addr = ADV_ISA_MAX_DMA_ADDR;
 303                         adv_set_isa_dma_settings(adv);
 304                         break;
 305
 306                 case ADV_VL:
 307                         adv->max_dma_count = ADV_VL_MAX_DMA_COUNT;
 308                         adv->max_dma_addr = ADV_VL_MAX_DMA_ADDR;
 309                         break;
 310                 default:
 311                         panic("advisaprobe: Invalid card type\n");
 312                 }
 313
 314                 /* Determine our IRQ */
 315                 if (bus_get_resource(dev, SYS_RES_IRQ, 0, &irq, NULL))
 316                         bus_set_resource(dev, SYS_RES_IRQ, 0,
 317                                          adv_get_chip_irq(adv), 1);
 318                 else
 319                         adv_set_chip_irq(adv, irq);
 320
 321                 irqres = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 0, ~0, 1,
 322                                             RF_ACTIVE);
 323                 if (irqres == NULL ||
 324                     bus_setup_intr(dev, irqres, INTR_TYPE_CAM, adv_intr, adv,
 325                                    &ih)) {
 326                         bus_dmamap_unload(overrun_dmat, overrun_dmamap);
 327                         bus_dmamem_free(overrun_dmat, overrun_buf,
 328                             overrun_dmamap);
 329                         bus_dma_tag_destroy(overrun_dmat);
 330                         adv_free(adv);
 331                         bus_release_resource(dev, SYS_RES_IOPORT, 0, iores);
 332                         break;
 333                 }
 334
 335                 /* Mark as probed */
 336                 adv_isa_ioports[port_index] = 0;
 337                 return 0;
 338         }
 339
 340         if (user_iobase)
 341                 bus_set_resource(dev, SYS_RES_IOPORT, 0, iobase, iocount);
 342         else
 343                 bus_delete_resource(dev, SYS_RES_IOPORT, 0);
 344
 345         return ENXIO;
 346 }
 347
 348 static int
 349 adv_isa_attach(device_t dev)
 350 {
 351         struct adv_softc *adv = device_get_softc(dev);
 352
 353         return (adv_attach(adv));
 354 }
 355
 356 static int
 357 adv_get_isa_dma_channel(struct adv_softc *adv)
 358 {
 359         int channel;
 360
 361         channel = ADV_INW(adv, ADV_CONFIG_LSW) & ADV_CFG_LSW_ISA_DMA_CHANNEL;
 362         if (channel == 0x03)
 363                 return (0);
 364         else if (channel == 0x00)
 365                 return (7);
 366         return (channel + 4);
 367 }
 368
 369 static int
 370 adv_set_isa_dma_settings(struct adv_softc *adv)
 371 {
 372         u_int16_t cfg_lsw;
 373         u_int8_t  value;
 374
 375         if ((adv->isa_dma_channel >= 5) && (adv->isa_dma_channel <= 7)) {
 376                 if (adv->isa_dma_channel == 7)
 377                         value = 0x00;
 378                 else
 379                         value = adv->isa_dma_channel - 4;
 380                 cfg_lsw = ADV_INW(adv, ADV_CONFIG_LSW)
 381                         & ~ADV_CFG_LSW_ISA_DMA_CHANNEL;
 382                 cfg_lsw |= value;
 383                 ADV_OUTW(adv, ADV_CONFIG_LSW, cfg_lsw);
 384
 385                 adv->isa_dma_speed &= 0x07;
 386                 adv_set_bank(adv, 1);
 387                 ADV_OUTB(adv, ADV_DMA_SPEED, adv->isa_dma_speed);
 388                 adv_set_bank(adv, 0);
 389                 isa_dmacascade(adv->isa_dma_channel);
 390         }
 391         return (0);
 392 }
 393
 394 static void
 395 adv_set_isapnp_wait_for_key(void)
 396 {
 397         static  int isapnp_wait_set = 0;
 398         if (isapnp_wait_set == 0) {
 399                 outb(ADV_ISA_PNP_PORT_ADDR, 0x02);
 400                 outb(ADV_ISA_PNP_PORT_WRITE, 0x02);
 401                 isapnp_wait_set++;
 402         }
 403 }
 404
 405 static device_method_t adv_isa_methods[] = {
 406         /* Device interface */
 407         DEVMETHOD(device_probe,         adv_isa_probe),
 408         DEVMETHOD(device_attach,        adv_isa_attach),
 409         { 0, 0 }
 410 };
 411
 412 static driver_t adv_isa_driver = {
 413         "adv", adv_isa_methods, sizeof(struct adv_softc)
 414 };
 415
 416 static devclass_t adv_isa_devclass;
 417 DRIVER_MODULE(adv, isa, adv_isa_driver, adv_isa_devclass, 0, 0);