The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/dev/buslogic/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  */
   30 
   31 #include <sys/cdefs.h>
   32 __FBSDID("$FreeBSD: releng/9.0/sys/dev/buslogic/bt_eisa.c 165102 2006-12-11 18:28:31Z mjacob $");
   33 
   34 #include <sys/param.h>
   35 #include <sys/systm.h>
   36 #include <sys/kernel.h>
   37 #include <sys/module.h>
   38 #include <sys/lock.h>
   39 #include <sys/mutex.h>
   40 #include <sys/bus.h>
   41 
   42 #include <machine/bus.h>
   43 #include <machine/resource.h>
   44 #include <sys/rman.h>
   45 
   46 #include <dev/eisa/eisaconf.h>
   47 
   48 #include <dev/buslogic/btreg.h>
   49 
   50 #define EISA_DEVICE_ID_BUSLOGIC_74X_B   0x0ab34201
   51 #define EISA_DEVICE_ID_BUSLOGIC_74X_C   0x0ab34202
   52 #define EISA_DEVICE_ID_SDC3222B         0x0ab34281
   53 #define EISA_DEVICE_ID_SDC3222F         0x0ab34781
   54 #define EISA_DEVICE_ID_SDC3222WS        0x0ab34981
   55 #define EISA_DEVICE_ID_SDC3222WB        0x0ab34982
   56 #define EISA_DEVICE_ID_AMI_4801         0x05a94801
   57 
   58 #define BT_IOSIZE               0x04            /* Move to central header */
   59 #define BT_EISA_IOSIZE          0x100
   60 #define BT_EISA_SLOT_OFFSET     0xc00
   61 
   62 #define EISA_IOCONF                     0x08C
   63 #define         PORTADDR                0x07
   64 #define                 PORT_330        0x00
   65 #define                 PORT_334        0x01
   66 #define                 PORT_230        0x02
   67 #define                 PORT_234        0x03
   68 #define                 PORT_130        0x04
   69 #define                 PORT_134        0x05
   70 #define         IRQ_CHANNEL             0xe0
   71 #define                 INT_11          0x40
   72 #define                 INT_10          0x20
   73 #define                 INT_15          0xa0
   74 #define                 INT_12          0x60
   75 #define                 INT_14          0x80
   76 #define                 INT_9           0x00
   77 
   78 #define EISA_IRQ_TYPE                   0x08D
   79 #define       LEVEL                     0x40
   80 
   81 /* Definitions for the AMI Series 48 controler */
   82 #define AMI_EISA_IOSIZE                 0x500   /* Two separate ranges?? */
   83 #define AMI_EISA_SLOT_OFFSET            0x800
   84 #define AMI_EISA_IOCONF                 0x000
   85 #define         AMI_DMA_CHANNEL         0x03
   86 #define         AMI_IRQ_CHANNEL         0x1c
   87 #define                 AMI_INT_15      0x14
   88 #define                 AMI_INT_14      0x10
   89 #define                 AMI_INT_12      0x0c
   90 #define                 AMI_INT_11      0x00
   91 #define                 AMI_INT_10      0x08
   92 #define                 AMI_INT_9       0x04
   93 #define         AMI_BIOS_ADDR           0xe0
   94 
   95 #define AMI_EISA_IOCONF1                0x001
   96 #define         AMI_PORTADDR            0x0e
   97 #define                 AMI_PORT_334    0x08
   98 #define                 AMI_PORT_330    0x00
   99 #define                 AMI_PORT_234    0x0c
  100 #define                 AMI_PORT_230    0x04
  101 #define                 AMI_PORT_134    0x0a
  102 #define                 AMI_PORT_130    0x02
  103 #define         AMI_IRQ_LEVEL           0x01
  104 
  105 
  106 #define AMI_MISC2_OPTIONS               0x49E
  107 #define         AMI_ENABLE_ISA_DMA      0x08
  108 
  109 static const char *bt_match(eisa_id_t type);
  110 
  111 static int
  112 bt_eisa_alloc_resources(device_t dev)
  113 {
  114         struct  bt_softc *bt = device_get_softc(dev);
  115         int rid;
  116         struct resource *port;
  117         struct resource *irq;
  118         int shared;
  119 
  120         /*
  121          * XXX assumes that the iospace ranges are sorted in increasing
  122          * order.
  123          */
  124         rid = 0;
  125         port = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid, RF_ACTIVE);
  126         if (!port)
  127                 return (ENOMEM);
  128 
  129         bt_init_softc(dev, port, 0, 0);
  130 
  131         if (eisa_get_irq(dev) != -1) {
  132                 shared = bt->level_trigger_ints ? RF_SHAREABLE : 0;
  133                 rid = 0;
  134                 irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid,
  135                                              shared | RF_ACTIVE);
  136                 if (!irq) {
  137                         if (port)
  138                                 bus_release_resource(dev, SYS_RES_IOPORT,
  139                                                      0, port);
  140                         return (ENOMEM);
  141                 }
  142         } else
  143                 irq = 0;
  144         bt->irq = irq;
  145 
  146         return (0);
  147 }
  148 
  149 static void
  150 bt_eisa_release_resources(device_t dev)
  151 {
  152         struct  bt_softc *bt = device_get_softc(dev);
  153 
  154         if (bt->port)
  155                 bus_release_resource(dev, SYS_RES_IOPORT, 0, bt->port);
  156         if (bt->irq)
  157                 bus_release_resource(dev, SYS_RES_IRQ, 0, bt->irq);
  158         bt_free_softc(dev);
  159 }
  160 
  161 static const char*
  162 bt_match(eisa_id_t type)
  163 {
  164         switch(type) {
  165                 case EISA_DEVICE_ID_BUSLOGIC_74X_B:
  166                         return ("Buslogic 74xB SCSI host adapter");
  167                 case EISA_DEVICE_ID_BUSLOGIC_74X_C:
  168                         return ("Buslogic 74xC SCSI host adapter");
  169                 case EISA_DEVICE_ID_SDC3222B:
  170                         return ("Storage Dimensions SDC3222B SCSI host adapter");
  171                 case EISA_DEVICE_ID_SDC3222F:
  172                         return ("Storage Dimensions SDC3222F SCSI host adapter");
  173                 case EISA_DEVICE_ID_SDC3222WS:
  174                         return ("Storage Dimensions SDC3222WS SCSI host adapter");
  175                 case EISA_DEVICE_ID_SDC3222WB:
  176                         return ("Storage Dimensions SDC3222WB SCSI host adapter");
  177                 case EISA_DEVICE_ID_AMI_4801:
  178                         return ("AMI Series 48 SCSI host adapter");
  179                 default:
  180                         break;
  181         }
  182         return (NULL);
  183 }
  184 
  185 static int
  186 bt_eisa_probe(device_t dev)
  187 {
  188         const char *desc;
  189         u_long iobase;
  190         struct bt_probe_info info;
  191         u_long port;
  192         u_long iosize;
  193         u_int  ioconf;
  194         int    result;
  195         int    shared;
  196 
  197         desc = bt_match(eisa_get_id(dev));
  198         if (!desc)
  199                 return (ENXIO);
  200         device_set_desc(dev, desc);
  201 
  202         iobase = (eisa_get_slot(dev) * EISA_SLOT_SIZE); 
  203         if (eisa_get_id(dev) == EISA_DEVICE_ID_AMI_4801) {
  204                 u_int ioconf1;
  205 
  206                 iobase += AMI_EISA_SLOT_OFFSET;
  207                 iosize = AMI_EISA_IOSIZE;
  208                 ioconf1 = inb(iobase + AMI_EISA_IOCONF1);
  209                 /* Determine "ISA" I/O port */
  210                 switch (ioconf1 & AMI_PORTADDR) {
  211                 case AMI_PORT_330:
  212                         port = 0x330;
  213                         break;
  214                 case AMI_PORT_334:
  215                         port = 0x334;
  216                         break;
  217                 case AMI_PORT_230:
  218                         port = 0x230;
  219                         break;
  220                 case AMI_PORT_234:
  221                         port = 0x234;
  222                         break;
  223                 case AMI_PORT_134:
  224                         port = 0x134;
  225                         break;
  226                 case AMI_PORT_130:
  227                         port = 0x130;
  228                         break;
  229                 default:
  230                         /* Disabled */
  231                         printf("bt: AMI EISA Adapter at "
  232                                "slot %d has a disabled I/O "
  233                                "port.  Cannot attach.\n",
  234                                eisa_get_slot(dev));
  235                         return (ENXIO);
  236                 }
  237                 shared = (inb(iobase + AMI_EISA_IOCONF1) & AMI_IRQ_LEVEL) ?
  238                                 EISA_TRIGGER_LEVEL : EISA_TRIGGER_EDGE;
  239         } else {
  240                 iobase += BT_EISA_SLOT_OFFSET;
  241                 iosize = BT_EISA_IOSIZE;
  242 
  243                 ioconf = inb(iobase + EISA_IOCONF);
  244                 /* Determine "ISA" I/O port */
  245                 switch (ioconf & PORTADDR) {
  246                 case PORT_330:
  247                         port = 0x330;
  248                         break;
  249                 case PORT_334:
  250                         port = 0x334;
  251                         break;
  252                 case PORT_230:
  253                         port = 0x230;
  254                         break;
  255                 case PORT_234:
  256                         port = 0x234;
  257                         break;
  258                 case PORT_130:
  259                         port = 0x130;
  260                         break;
  261                 case PORT_134:
  262                         port = 0x134;
  263                         break;
  264                 default:
  265                         /* Disabled */
  266                         printf("bt: Buslogic EISA Adapter at "
  267                                "slot %d has a disabled I/O "
  268                                "port.  Cannot attach.\n",
  269                                eisa_get_slot(dev));
  270                         return (ENXIO);
  271                 }
  272                 shared = (inb(iobase + EISA_IRQ_TYPE) & LEVEL) ?
  273                                 EISA_TRIGGER_LEVEL : EISA_TRIGGER_EDGE;
  274         }
  275         bt_mark_probed_iop(port);
  276 
  277         /* Tell parent where our resources are going to be */
  278         eisa_add_iospace(dev, iobase, iosize, RESVADDR_NONE);
  279         eisa_add_iospace(dev, port, BT_IOSIZE, RESVADDR_NONE);
  280 
  281         /* And allocate them */
  282         bt_eisa_alloc_resources(dev);
  283 
  284         if (bt_port_probe(dev, &info) != 0) {
  285                 printf("bt_eisa_probe: Probe failed for "
  286                        "card at slot 0x%x\n", eisa_get_slot(dev));
  287                 result = ENXIO;
  288         } else {
  289                 eisa_add_intr(dev, info.irq, shared);
  290                 result = 0;
  291         }
  292         bt_eisa_release_resources(dev);
  293 
  294         return (result);
  295 }
  296 
  297 static int
  298 bt_eisa_attach(device_t dev)
  299 {
  300         struct bt_softc *bt = device_get_softc(dev);
  301 
  302         /* Allocate resources */
  303         bt_eisa_alloc_resources(dev);
  304 
  305         /* Allocate a dmatag for our SCB DMA maps */
  306         /* XXX Should be a child of the PCI bus dma tag */
  307         if (bus_dma_tag_create( /* parent       */ NULL,
  308                                 /* alignment    */ 1,
  309                                 /* boundary     */ 0,
  310                                 /* lowaddr      */ BUS_SPACE_MAXADDR_32BIT,
  311                                 /* highaddr     */ BUS_SPACE_MAXADDR,
  312                                 /* filter       */ NULL,
  313                                 /* filterarg    */ NULL,
  314                                 /* maxsize      */ BUS_SPACE_MAXSIZE_32BIT,
  315                                 /* nsegments    */ ~0,
  316                                 /* maxsegsz     */ BUS_SPACE_MAXSIZE_32BIT,
  317                                 /* flags        */ 0,
  318                                 /* lockfunc     */ busdma_lock_mutex,
  319                                 /* lockarg,     */ &Giant,
  320                                 &bt->parent_dmat) != 0) {
  321                 bt_eisa_release_resources(dev);
  322                 return -1;
  323         }
  324 
  325         /*
  326          * Now that we know we own the resources we need, do the full
  327          * card initialization.
  328          */
  329         if (bt_probe(dev) || bt_fetch_adapter_info(dev) || bt_init(dev)) {
  330                 bt_eisa_release_resources(dev);
  331                 return -1;
  332         }
  333 
  334         /* Attach sub-devices - always succeeds (sets up intr) */
  335         bt_attach(dev);
  336 
  337         return 0;
  338 }
  339 
  340 static device_method_t bt_eisa_methods[] = {
  341         /* Device interface */
  342         DEVMETHOD(device_probe,         bt_eisa_probe),
  343         DEVMETHOD(device_attach,        bt_eisa_attach),
  344 
  345         { 0, 0 }
  346 };
  347 
  348 static driver_t bt_eisa_driver = {
  349         "bt",
  350         bt_eisa_methods,
  351         sizeof(struct bt_softc),
  352 };
  353 
  354 static devclass_t bt_devclass;
  355 
  356 DRIVER_MODULE(bt, eisa, bt_eisa_driver, bt_devclass, 0, 0);
  357 MODULE_DEPEND(bt, eisa, 1, 1, 1);

Cache object: d437451ab9e8549cabd7592cc797a339


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