bt_eisa.c

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    1 /*
    2  * Product specific probe and attach routines for:
    3  *      Buslogic BT74x SCSI controllers
    4  *
    5  * Copyright (c) 1995, 1998, 1999 Justin T. Gibbs
    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 immediately at the beginning of the file, without modification,
   13  *    this list of conditions, and the following disclaimer.
   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  * $FreeBSD$
   30  */
   31 
   32 #include <sys/param.h>
   33 #include <sys/systm.h>
   34 #include <sys/kernel.h>
   35 #include <sys/module.h>
   36 #include <sys/bus.h>
   37 
   38 #include <machine/bus_pio.h>
   39 #include <machine/bus.h>
   40 #include <machine/resource.h>
   41 #include <sys/rman.h>
   42 
   43 #include <dev/eisa/eisaconf.h>
   44 
   45 #include <dev/buslogic/btreg.h>
   46 
   47 #define EISA_DEVICE_ID_BUSLOGIC_74X_B   0x0ab34201
   48 #define EISA_DEVICE_ID_BUSLOGIC_74X_C   0x0ab34202
   49 #define EISA_DEVICE_ID_SDC3222F         0x0ab34781
   50 #define EISA_DEVICE_ID_AMI_4801         0x05a94801
   51 
   52 #define BT_IOSIZE               0x04            /* Move to central header */
   53 #define BT_EISA_IOSIZE          0x100
   54 #define BT_EISA_SLOT_OFFSET     0xc00
   55 
   56 #define EISA_IOCONF                     0x08C
   57 #define         PORTADDR                0x07
   58 #define                 PORT_330        0x00
   59 #define                 PORT_334        0x01
   60 #define                 PORT_230        0x02
   61 #define                 PORT_234        0x03
   62 #define                 PORT_130        0x04
   63 #define                 PORT_134        0x05
   64 #define         IRQ_CHANNEL             0xe0
   65 #define                 INT_11          0x40
   66 #define                 INT_10          0x20
   67 #define                 INT_15          0xa0
   68 #define                 INT_12          0x60
   69 #define                 INT_14          0x80
   70 #define                 INT_9           0x00
   71 
   72 #define EISA_IRQ_TYPE                   0x08D
   73 #define       LEVEL                     0x40
   74 
   75 /* Definitions for the AMI Series 48 controler */
   76 #define AMI_EISA_IOSIZE                 0x500   /* Two separate ranges?? */
   77 #define AMI_EISA_SLOT_OFFSET            0x800
   78 #define AMI_EISA_IOCONF                 0x000
   79 #define         AMI_DMA_CHANNEL         0x03
   80 #define         AMI_IRQ_CHANNEL         0x1c
   81 #define                 AMI_INT_15      0x14
   82 #define                 AMI_INT_14      0x10
   83 #define                 AMI_INT_12      0x0c
   84 #define                 AMI_INT_11      0x00
   85 #define                 AMI_INT_10      0x08
   86 #define                 AMI_INT_9       0x04
   87 #define         AMI_BIOS_ADDR           0xe0
   88 
   89 #define AMI_EISA_IOCONF1                0x001
   90 #define         AMI_PORTADDR            0x0e
   91 #define                 AMI_PORT_334    0x08
   92 #define                 AMI_PORT_330    0x00
   93 #define                 AMI_PORT_234    0x0c
   94 #define                 AMI_PORT_230    0x04
   95 #define                 AMI_PORT_134    0x0a
   96 #define                 AMI_PORT_130    0x02
   97 #define         AMI_IRQ_LEVEL           0x01
   98 
   99 
  100 #define AMI_MISC2_OPTIONS               0x49E
  101 #define         AMI_ENABLE_ISA_DMA      0x08
  102 
  103 static const char *bt_match(eisa_id_t type);
  104 
  105 static int
  106 bt_eisa_alloc_resources(device_t dev)
  107 {
  108         struct  bt_softc *bt = device_get_softc(dev);
  109         int rid;
  110         struct resource *port;
  111         struct resource *irq;
  112         int shared;
  113 
  114         /*
  115          * XXX assumes that the iospace ranges are sorted in increasing
  116          * order.
  117          */
  118         rid = 0;
  119         port = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid,
  120                                   0, ~0, 1, RF_ACTIVE);
  121         if (!port)
  122                 return (ENOMEM);
  123 
  124         bt_init_softc(dev, port, 0, 0);
  125 
  126         if (eisa_get_irq(dev) != -1) {
  127                 shared = bt->level_trigger_ints ? RF_SHAREABLE : 0;
  128                 rid = 0;
  129                 irq = bus_alloc_resource(dev, SYS_RES_IRQ, &rid,
  130                                          0, ~0, 1, shared | RF_ACTIVE);
  131                 if (!irq) {
  132                         if (port)
  133                                 bus_release_resource(dev, SYS_RES_IOPORT,
  134                                                      0, port);
  135                         return (ENOMEM);
  136                 }
  137         } else
  138                 irq = 0;
  139         bt->irq = irq;
  140 
  141         return (0);
  142 }
  143 
  144 static void
  145 bt_eisa_release_resources(device_t dev)
  146 {
  147         struct  bt_softc *bt = device_get_softc(dev);
  148 
  149         if (bt->port)
  150                 bus_release_resource(dev, SYS_RES_IOPORT, 0, bt->port);
  151         if (bt->irq)
  152                 bus_release_resource(dev, SYS_RES_IRQ, 0, bt->irq);
  153         bt_free_softc(dev);
  154 }
  155 
  156 static const char*
  157 bt_match(eisa_id_t type)
  158 {
  159         switch(type) {
  160                 case EISA_DEVICE_ID_BUSLOGIC_74X_B:
  161                         return ("Buslogic 74xB SCSI host adapter");
  162                         break;
  163                 case EISA_DEVICE_ID_BUSLOGIC_74X_C:
  164                         return ("Buslogic 74xC SCSI host adapter");
  165                         break;
  166                 case EISA_DEVICE_ID_SDC3222F:
  167                         return ("Storage Dimensions SDC3222F SCSI host adapter");
  168                         break;
  169                 case EISA_DEVICE_ID_AMI_4801:
  170                         return ("AMI Series 48 SCSI host adapter");
  171                         break;
  172                 default:
  173                         break;
  174         }
  175         return (NULL);
  176 }
  177 
  178 static int
  179 bt_eisa_probe(device_t dev)
  180 {
  181         const char *desc;
  182         u_long iobase;
  183         struct bt_probe_info info;
  184         u_long port;
  185         u_long iosize;
  186         u_int  ioconf;
  187         int    result;
  188         int    shared;
  189 
  190         desc = bt_match(eisa_get_id(dev));
  191         if (!desc)
  192                 return (ENXIO);
  193         device_set_desc(dev, desc);
  194 
  195         iobase = (eisa_get_slot(dev) * EISA_SLOT_SIZE); 
  196         if (eisa_get_id(dev) == EISA_DEVICE_ID_AMI_4801) {
  197                 u_int ioconf1;
  198 
  199                 iobase += AMI_EISA_SLOT_OFFSET;
  200                 iosize = AMI_EISA_IOSIZE;
  201                 ioconf1 = inb(iobase + AMI_EISA_IOCONF1);
  202                 /* Determine "ISA" I/O port */
  203                 switch (ioconf1 & AMI_PORTADDR) {
  204                 case AMI_PORT_330:
  205                         port = 0x330;
  206                         break;
  207                 case AMI_PORT_334:
  208                         port = 0x334;
  209                         break;
  210                 case AMI_PORT_230:
  211                         port = 0x230;
  212                         break;
  213                 case AMI_PORT_234:
  214                         port = 0x234;
  215                         break;
  216                 case AMI_PORT_134:
  217                         port = 0x134;
  218                         break;
  219                 case AMI_PORT_130:
  220                         port = 0x130;
  221                         break;
  222                 default:
  223                         /* Disabled */
  224                         printf("bt: AMI EISA Adapter at "
  225                                "slot %d has a disabled I/O "
  226                                "port.  Cannot attach.\n",
  227                                eisa_get_slot(dev));
  228                         return (ENXIO);
  229                 }
  230                 shared = (inb(iobase + AMI_EISA_IOCONF1) & AMI_IRQ_LEVEL) ?
  231                                 EISA_TRIGGER_LEVEL : EISA_TRIGGER_EDGE;
  232         } else {
  233                 iobase += BT_EISA_SLOT_OFFSET;
  234                 iosize = BT_EISA_IOSIZE;
  235 
  236                 ioconf = inb(iobase + EISA_IOCONF);
  237                 /* Determine "ISA" I/O port */
  238                 switch (ioconf & PORTADDR) {
  239                 case PORT_330:
  240                         port = 0x330;
  241                         break;
  242                 case PORT_334:
  243                         port = 0x334;
  244                         break;
  245                 case PORT_230:
  246                         port = 0x230;
  247                         break;
  248                 case PORT_234:
  249                         port = 0x234;
  250                         break;
  251                 case PORT_130:
  252                         port = 0x130;
  253                         break;
  254                 case PORT_134:
  255                         port = 0x134;
  256                         break;
  257                 default:
  258                         /* Disabled */
  259                         printf("bt: Buslogic EISA Adapter at "
  260                                "slot %d has a disabled I/O "
  261                                "port.  Cannot attach.\n",
  262                                eisa_get_slot(dev));
  263                         return (ENXIO);
  264                 }
  265                 shared = (inb(iobase + EISA_IRQ_TYPE) & LEVEL) ?
  266                                 EISA_TRIGGER_LEVEL : EISA_TRIGGER_EDGE;
  267         }
  268         bt_mark_probed_iop(port);
  269 
  270         /* Tell parent where our resources are going to be */
  271         eisa_add_iospace(dev, iobase, iosize, RESVADDR_NONE);
  272         eisa_add_iospace(dev, port, BT_IOSIZE, RESVADDR_NONE);
  273 
  274         /* And allocate them */
  275         bt_eisa_alloc_resources(dev);
  276 
  277         if (bt_port_probe(dev, &info) != 0) {
  278                 printf("bt_eisa_probe: Probe failed for "
  279                        "card at slot 0x%x\n", eisa_get_slot(dev));
  280                 result = ENXIO;
  281         } else {
  282                 eisa_add_intr(dev, info.irq, shared);
  283                 result = 0;
  284         }
  285         bt_eisa_release_resources(dev);
  286 
  287         return (result);
  288 }
  289 
  290 static int
  291 bt_eisa_attach(device_t dev)
  292 {
  293         struct bt_softc *bt = device_get_softc(dev);
  294 
  295         /* Allocate resources */
  296         bt_eisa_alloc_resources(dev);
  297 
  298         /* Allocate a dmatag for our SCB DMA maps */
  299         /* XXX Should be a child of the PCI bus dma tag */
  300         if (bus_dma_tag_create(/*parent*/NULL, /*alignment*/1, /*boundary*/0,
  301                                /*lowaddr*/BUS_SPACE_MAXADDR_32BIT,
  302                                /*highaddr*/BUS_SPACE_MAXADDR,
  303                                /*filter*/NULL, /*filterarg*/NULL,
  304                                /*maxsize*/BUS_SPACE_MAXSIZE_32BIT,
  305                                /*nsegments*/BUS_SPACE_UNRESTRICTED,
  306                                /*maxsegsz*/BUS_SPACE_MAXSIZE_32BIT,
  307                                /*flags*/0, &bt->parent_dmat) != 0) {
  308                 bt_eisa_release_resources(dev);
  309                 return -1;
  310         }
  311 
  312         /*
  313          * Now that we know we own the resources we need, do the full
  314          * card initialization.
  315          */
  316         if (bt_probe(dev) || bt_fetch_adapter_info(dev) || bt_init(dev)) {
  317                 bt_eisa_release_resources(dev);
  318                 return -1;
  319         }
  320 
  321         /* Attach sub-devices - always succeeds (sets up intr) */
  322         bt_attach(dev);
  323 
  324         return 0;
  325 }
  326 
  327 static device_method_t bt_eisa_methods[] = {
  328         /* Device interface */
  329         DEVMETHOD(device_probe,         bt_eisa_probe),
  330         DEVMETHOD(device_attach,        bt_eisa_attach),
  331 
  332         { 0, 0 }
  333 };
  334 
  335 static driver_t bt_eisa_driver = {
  336         "bt",
  337         bt_eisa_methods,
  338         sizeof(struct bt_softc),
  339 };
  340 
  341 static devclass_t bt_devclass;
  342 
  343 DRIVER_MODULE(bt, eisa, bt_eisa_driver, bt_devclass, 0, 0);
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FreeBSD/Linux Kernel Cross Reference sys/dev/buslogic/bt_eisa.c

FreeBSD/Linux Kernel Cross Reference
sys/dev/buslogic/bt_eisa.c
