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/aha/aha_isa.c

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    1 /*
    2  * Product specific probe and attach routines for:
    3  *      Adaptec 154x.
    4  */
    5 /*-
    6  * Copyright (c) 1999-2003 M. Warner Losh
    7  * All rights reserved.
    8  *
    9  * Redistribution and use in source and binary forms, with or without
   10  * modification, are permitted provided that the following conditions
   11  * are met:
   12  * 1. Redistributions of source code must retain the above copyright
   13  *    notice, this list of conditions, and the following disclaimer,
   14  *    without modification, immediately at the beginning of the file.
   15  * 2. The name of the author may not be used to endorse or promote products
   16  *    derived from this software without specific prior written permission.
   17  *
   18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   19  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   20  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   21  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
   22  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   23  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   24  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   25  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   26  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   27  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   28  * SUCH DAMAGE.
   29  *
   30  * Derived from bt isa from end, written by:
   31  *
   32  * Copyright (c) 1998 Justin T. Gibbs
   33  * All rights reserved.
   34  *
   35  * Redistribution and use in source and binary forms, with or without
   36  * modification, are permitted provided that the following conditions
   37  * are met:
   38  * 1. Redistributions of source code must retain the above copyright
   39  *    notice, this list of conditions, and the following disclaimer,
   40  *    without modification, immediately at the beginning of the file.
   41  * 2. The name of the author may not be used to endorse or promote products
   42  *    derived from this software without specific prior written permission.
   43  *
   44  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   45  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   46  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   47  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
   48  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   49  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   50  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   51  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   52  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   53  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   54  * SUCH DAMAGE.
   55  */
   56 
   57 #include <sys/cdefs.h>
   58 __FBSDID("$FreeBSD: releng/10.3/sys/dev/aha/aha_isa.c 241603 2012-10-16 08:40:09Z glebius $");
   59 
   60 #include <sys/param.h>
   61 #include <sys/systm.h>
   62 #include <sys/kernel.h>
   63 #include <sys/lock.h>
   64 #include <sys/mutex.h>
   65 
   66 #include <machine/bus.h>
   67 #include <machine/resource.h>
   68 #include <sys/module.h>
   69 #include <sys/bus.h>
   70 #include <sys/rman.h>
   71 
   72 #include <isa/isavar.h>
   73 
   74 #include <dev/aha/ahareg.h>
   75 
   76 #include <cam/scsi/scsi_all.h>
   77 
   78 static struct isa_pnp_id aha_ids[] = {
   79         {ADP0100_PNP,           "Adaptec 1540/1542 ISA SCSI"},  /* ADP0100 */
   80         {AHA1540_PNP,           "Adaptec 1540/aha-1640/aha-1535"},/* ADP1540 */
   81         {AHA1542_PNP,           "Adaptec 1542/aha-1535"},       /* ADP1542 */
   82         {AHA1542_PNPCOMPAT,     "Adaptec 1542 compatible"},     /* PNP00A0 */
   83         {ICU0091_PNP,           "Adaptec AHA-1540/1542 SCSI"},  /* ICU0091 */
   84         {0}
   85 };
   86 
   87 /*
   88  * I/O ports listed in the order enumerated by the card for certain op codes.
   89  */
   90 static bus_addr_t aha_board_ports[] =
   91 {
   92         0x330,
   93         0x334,
   94         0x230,
   95         0x234,
   96         0x130,
   97         0x134
   98 };
   99 
  100 /*
  101  * Check if the device can be found at the port given
  102  */
  103 static int
  104 aha_isa_probe(device_t dev)
  105 {
  106         /*
  107          * find unit and check we have that many defined
  108          */
  109         struct  aha_softc *aha = device_get_softc(dev);
  110         int     error;
  111         u_long  port_start;
  112         int     port_rid;
  113         int     drq;
  114         int     irq;
  115         config_data_t config_data;
  116 
  117         aha->dev = dev;
  118         /* Check isapnp ids */
  119         if (ISA_PNP_PROBE(device_get_parent(dev), dev, aha_ids) == ENXIO)
  120                 return (ENXIO);
  121 
  122         port_rid = 0;
  123         aha->port = bus_alloc_resource(dev, SYS_RES_IOPORT, &port_rid,
  124             0ul, ~0ul, AHA_NREGS, RF_ACTIVE);
  125 
  126         if (aha->port == NULL)
  127                 return (ENXIO);
  128 
  129         port_start = rman_get_start(aha->port);
  130         aha_alloc(aha);
  131 
  132         /* See if there is really a card present */
  133         if (aha_probe(aha) || aha_fetch_adapter_info(aha)) {
  134                 aha_free(aha);
  135                 bus_release_resource(dev, SYS_RES_IOPORT, port_rid, aha->port);
  136                 return (ENXIO);
  137         }
  138 
  139         /*
  140          * Determine our IRQ, and DMA settings and
  141          * export them to the configuration system.
  142          */
  143         error = aha_cmd(aha, AOP_INQUIRE_CONFIG, NULL, /*parmlen*/0,
  144             (uint8_t*)&config_data, sizeof(config_data), DEFAULT_CMD_TIMEOUT);
  145 
  146         if (error != 0) {
  147                 device_printf(dev, "Could not determine IRQ or DMA "
  148                     "settings for adapter at %#jx.  Failing probe\n",
  149                     (uintmax_t)port_start);
  150                 aha_free(aha);
  151                 bus_release_resource(dev, SYS_RES_IOPORT, port_rid,
  152                     aha->port);
  153                 return (ENXIO);
  154         }
  155 
  156         bus_release_resource(dev, SYS_RES_IOPORT, port_rid, aha->port);
  157         aha->port = NULL;
  158 
  159         switch (config_data.dma_chan) {
  160         case DMA_CHAN_5:
  161                 drq = 5;
  162                 break;
  163         case DMA_CHAN_6:
  164                 drq = 6;
  165                 break;
  166         case DMA_CHAN_7:
  167                 drq = 7;
  168                 break;
  169         default:
  170                 device_printf(dev, "Invalid DMA setting for adapter at %#jx.",
  171                     (uintmax_t)port_start);
  172                 return (ENXIO);
  173         }
  174         error = bus_set_resource(dev, SYS_RES_DRQ, 0, drq, 1);
  175         if (error)
  176                 return error;
  177 
  178         irq = ffs(config_data.irq) + 8;
  179         error = bus_set_resource(dev, SYS_RES_IRQ, 0, irq, 1);
  180         return (error);
  181 }
  182 
  183 /*
  184  * Attach all the sub-devices we can find
  185  */
  186 static int
  187 aha_isa_attach(device_t dev)
  188 {
  189         struct  aha_softc *aha = device_get_softc(dev);
  190         int              error = ENOMEM;
  191 
  192         aha->dev = dev;
  193         aha->portrid = 0;
  194         aha->port = bus_alloc_resource(dev, SYS_RES_IOPORT, &aha->portrid,
  195             0ul, ~0ul, AHA_NREGS, RF_ACTIVE);
  196         if (!aha->port) {
  197                 device_printf(dev, "Unable to allocate I/O ports\n");
  198                 goto fail;
  199         }
  200 
  201         aha->irqrid = 0;
  202         aha->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &aha->irqrid,
  203             RF_ACTIVE);
  204         if (!aha->irq) {
  205                 device_printf(dev, "Unable to allocate excluse use of irq\n");
  206                 goto fail;
  207         }
  208 
  209         aha->drqrid = 0;
  210         aha->drq = bus_alloc_resource_any(dev, SYS_RES_DRQ, &aha->drqrid,
  211             RF_ACTIVE);
  212         if (!aha->drq) {
  213                 device_printf(dev, "Unable to allocate drq\n");
  214                 goto fail;
  215         }
  216 
  217 #if 0                           /* is the drq ever unset? */
  218         if (dev->id_drq != -1)
  219                 isa_dmacascade(dev->id_drq);
  220 #endif
  221         isa_dmacascade(rman_get_start(aha->drq));
  222 
  223         /* Allocate our parent dmatag */
  224         if (bus_dma_tag_create( /* parent       */ bus_get_dma_tag(dev),
  225                                 /* alignemnt    */ 1,
  226                                 /* boundary     */ 0,
  227                                 /* lowaddr      */ BUS_SPACE_MAXADDR_24BIT,
  228                                 /* highaddr     */ BUS_SPACE_MAXADDR,
  229                                 /* filter       */ NULL,
  230                                 /* filterarg    */ NULL,
  231                                 /* maxsize      */ BUS_SPACE_MAXSIZE_24BIT,
  232                                 /* nsegments    */ ~0,
  233                                 /* maxsegsz     */ BUS_SPACE_MAXSIZE_24BIT,
  234                                 /* flags        */ 0,
  235                                 /* lockfunc     */ NULL,
  236                                 /* lockarg      */ NULL,
  237                                 &aha->parent_dmat) != 0) {
  238                 device_printf(dev, "dma tag create failed.\n");
  239                 goto fail;
  240         }                              
  241 
  242         if (aha_init(aha)) {
  243                 device_printf(dev, "init failed\n");
  244                 goto fail;
  245         }
  246         /*
  247          * The 1542A and B look the same.  So we guess based on
  248          * the firmware revision.  It appears that only rev 0 is on
  249          * the A cards.
  250          */
  251         if (aha->boardid <= BOARD_1542 && aha->fw_major == 0) {
  252                 device_printf(dev, "154xA may not work\n");
  253                 aha->ccb_sg_opcode = INITIATOR_SG_CCB;
  254                 aha->ccb_ccb_opcode = INITIATOR_CCB;
  255         }
  256         
  257         error = aha_attach(aha);
  258         if (error) {
  259                 device_printf(dev, "attach failed\n");
  260                 goto fail;
  261         }
  262 
  263         error = bus_setup_intr(dev, aha->irq, INTR_TYPE_CAM|INTR_ENTROPY|
  264             INTR_MPSAFE, NULL, aha_intr, aha, &aha->ih);
  265         if (error) {
  266                 device_printf(dev, "Unable to register interrupt handler\n");
  267                 aha_detach(aha);
  268                 goto fail;
  269         }
  270 
  271         return (0);
  272 fail: ;
  273         aha_free(aha);
  274         bus_free_resource(dev, SYS_RES_IOPORT, aha->port);
  275         bus_free_resource(dev, SYS_RES_IRQ, aha->irq);
  276         bus_free_resource(dev, SYS_RES_DRQ, aha->drq);
  277         return (error);
  278 }
  279 
  280 static int
  281 aha_isa_detach(device_t dev)
  282 {
  283         struct aha_softc *aha = (struct aha_softc *)device_get_softc(dev);
  284         int error;
  285 
  286         error = bus_teardown_intr(dev, aha->irq, aha->ih);
  287         if (error)
  288                 device_printf(dev, "failed to unregister interrupt handler\n");
  289 
  290         error = aha_detach(aha);
  291         if (error) {
  292                 device_printf(dev, "detach failed\n");
  293                 return (error);
  294         }
  295         aha_free(aha);
  296         bus_free_resource(dev, SYS_RES_IOPORT, aha->port);
  297         bus_free_resource(dev, SYS_RES_IRQ, aha->irq);
  298         bus_free_resource(dev, SYS_RES_DRQ, aha->drq);
  299 
  300         return (0);
  301 }
  302 
  303 static void
  304 aha_isa_identify(driver_t *driver, device_t parent)
  305 {
  306         int i;
  307         bus_addr_t ioport;
  308         struct aha_softc aha;
  309         int rid;
  310         device_t child;
  311 
  312         /* Attempt to find an adapter */
  313         for (i = 0; i < sizeof(aha_board_ports) / sizeof(aha_board_ports[0]);
  314             i++) {
  315                 bzero(&aha, sizeof(aha));
  316                 ioport = aha_board_ports[i];
  317                 /*
  318                  * XXX Check to see if we have a hard-wired aha device at
  319                  * XXX this port, if so, skip.  This should also cover the
  320                  * XXX case where we are run multiple times due to, eg,
  321                  * XXX kldload/kldunload.
  322                  */
  323                 rid = 0;
  324                 aha.port = bus_alloc_resource(parent, SYS_RES_IOPORT, &rid,
  325                     ioport, ioport, AHA_NREGS, RF_ACTIVE);
  326                 if (aha.port == NULL)
  327                         continue;
  328                 aha_alloc(&aha);
  329                 /* See if there is really a card present */
  330                 if (aha_probe(&aha) || aha_fetch_adapter_info(&aha))
  331                         goto not_this_one;
  332                 child = BUS_ADD_CHILD(parent, ISA_ORDER_SPECULATIVE, "aha", -1);
  333                 bus_set_resource(child, SYS_RES_IOPORT, 0, ioport, AHA_NREGS);
  334                 /*
  335                  * Could query the board and set IRQ/DRQ, but probe does
  336                  * that.
  337                  */
  338         not_this_one:
  339                 bus_release_resource(parent, SYS_RES_IOPORT, rid, aha.port);
  340                 aha_free(&aha);
  341         }
  342 }
  343 
  344 static device_method_t aha_isa_methods[] = {
  345         /* Device interface */
  346         DEVMETHOD(device_probe,         aha_isa_probe),
  347         DEVMETHOD(device_attach,        aha_isa_attach),
  348         DEVMETHOD(device_detach,        aha_isa_detach),
  349         DEVMETHOD(device_identify,      aha_isa_identify),
  350 
  351         { 0, 0 }
  352 };
  353 
  354 static driver_t aha_isa_driver = {
  355         "aha",
  356         aha_isa_methods,
  357         sizeof(struct aha_softc),
  358 };
  359 
  360 static devclass_t aha_devclass;
  361 
  362 DRIVER_MODULE(aha, isa, aha_isa_driver, aha_devclass, 0, 0);
  363 MODULE_DEPEND(aha, isa, 1, 1, 1);

Cache object: 27ede4ffe733a0b4d9fc6bb4b2df1b99


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