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  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
    7  *
    8  * Copyright (c) 1999-2003 M. Warner Losh
    9  * All rights reserved.
   10  *
   11  * Redistribution and use in source and binary forms, with or without
   12  * modification, are permitted provided that the following conditions
   13  * are met:
   14  * 1. Redistributions of source code must retain the above copyright
   15  *    notice, this list of conditions, and the following disclaimer,
   16  *    without modification, immediately at the beginning of the file.
   17  * 2. The name of the author may not be used to endorse or promote products
   18  *    derived from this software without specific prior written permission.
   19  *
   20  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   23  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
   24  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   30  * SUCH DAMAGE.
   31  *
   32  * Derived from bt isa from end, written by:
   33  *
   34  * Copyright (c) 1998 Justin T. Gibbs
   35  * All rights reserved.
   36  *
   37  * Redistribution and use in source and binary forms, with or without
   38  * modification, are permitted provided that the following conditions
   39  * are met:
   40  * 1. Redistributions of source code must retain the above copyright
   41  *    notice, this list of conditions, and the following disclaimer,
   42  *    without modification, immediately at the beginning of the file.
   43  * 2. The name of the author may not be used to endorse or promote products
   44  *    derived from this software without specific prior written permission.
   45  *
   46  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   47  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   48  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   49  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
   50  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   51  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   52  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   53  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   54  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   55  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   56  * SUCH DAMAGE.
   57  */
   58 
   59 #include <sys/cdefs.h>
   60 __FBSDID("$FreeBSD: releng/12.0/sys/dev/aha/aha_isa.c 327102 2017-12-23 06:49:27Z imp $");
   61 
   62 #include <sys/param.h>
   63 #include <sys/systm.h>
   64 #include <sys/kernel.h>
   65 #include <sys/lock.h>
   66 #include <sys/mutex.h>
   67 
   68 #include <machine/bus.h>
   69 #include <machine/resource.h>
   70 #include <sys/module.h>
   71 #include <sys/bus.h>
   72 #include <sys/rman.h>
   73 
   74 #include <isa/isavar.h>
   75 
   76 #include <dev/aha/ahareg.h>
   77 
   78 #include <cam/scsi/scsi_all.h>
   79 
   80 static struct isa_pnp_id aha_ids[] = {
   81         {ADP0100_PNP,           "Adaptec 1540/1542 ISA SCSI"},  /* ADP0100 */
   82         {AHA1540_PNP,           "Adaptec 1540/aha-1640/aha-1535"},/* ADP1540 */
   83         {AHA1542_PNP,           "Adaptec 1542/aha-1535"},       /* ADP1542 */
   84         {AHA1542_PNPCOMPAT,     "Adaptec 1542 compatible"},     /* PNP00A0 */
   85         {ICU0091_PNP,           "Adaptec AHA-1540/1542 SCSI"},  /* ICU0091 */
   86         {0}
   87 };
   88 
   89 /*
   90  * I/O ports listed in the order enumerated by the card for certain op codes.
   91  */
   92 static bus_addr_t aha_board_ports[] =
   93 {
   94         0x330,
   95         0x334,
   96         0x230,
   97         0x234,
   98         0x130,
   99         0x134
  100 };
  101 
  102 /*
  103  * Check if the device can be found at the port given
  104  */
  105 static int
  106 aha_isa_probe(device_t dev)
  107 {
  108         /*
  109          * find unit and check we have that many defined
  110          */
  111         struct  aha_softc *aha = device_get_softc(dev);
  112         int     error;
  113         u_long  port_start;
  114         int     port_rid;
  115         int     drq;
  116         int     irq;
  117         config_data_t config_data;
  118 
  119         aha->dev = dev;
  120         /* Check isapnp ids */
  121         if (ISA_PNP_PROBE(device_get_parent(dev), dev, aha_ids) == ENXIO)
  122                 return (ENXIO);
  123 
  124         port_rid = 0;
  125         aha->port = bus_alloc_resource_anywhere(dev, SYS_RES_IOPORT, &port_rid,
  126             AHA_NREGS, RF_ACTIVE);
  127 
  128         if (aha->port == NULL)
  129                 return (ENXIO);
  130 
  131         port_start = rman_get_start(aha->port);
  132         aha_alloc(aha);
  133 
  134         /* See if there is really a card present */
  135         if (aha_probe(aha) || aha_fetch_adapter_info(aha)) {
  136                 aha_free(aha);
  137                 bus_release_resource(dev, SYS_RES_IOPORT, port_rid, aha->port);
  138                 return (ENXIO);
  139         }
  140 
  141         /*
  142          * Determine our IRQ, and DMA settings and
  143          * export them to the configuration system.
  144          */
  145         error = aha_cmd(aha, AOP_INQUIRE_CONFIG, NULL, /*parmlen*/0,
  146             (uint8_t*)&config_data, sizeof(config_data), DEFAULT_CMD_TIMEOUT);
  147 
  148         if (error != 0) {
  149                 device_printf(dev, "Could not determine IRQ or DMA "
  150                     "settings for adapter at %#jx.  Failing probe\n",
  151                     (uintmax_t)port_start);
  152                 aha_free(aha);
  153                 bus_release_resource(dev, SYS_RES_IOPORT, port_rid,
  154                     aha->port);
  155                 return (ENXIO);
  156         }
  157 
  158         bus_release_resource(dev, SYS_RES_IOPORT, port_rid, aha->port);
  159         aha->port = NULL;
  160 
  161         switch (config_data.dma_chan) {
  162         case DMA_CHAN_5:
  163                 drq = 5;
  164                 break;
  165         case DMA_CHAN_6:
  166                 drq = 6;
  167                 break;
  168         case DMA_CHAN_7:
  169                 drq = 7;
  170                 break;
  171         default:
  172                 device_printf(dev, "Invalid DMA setting for adapter at %#jx.",
  173                     (uintmax_t)port_start);
  174                 return (ENXIO);
  175         }
  176         error = bus_set_resource(dev, SYS_RES_DRQ, 0, drq, 1);
  177         if (error)
  178                 return error;
  179 
  180         irq = ffs(config_data.irq) + 8;
  181         error = bus_set_resource(dev, SYS_RES_IRQ, 0, irq, 1);
  182         return (error);
  183 }
  184 
  185 /*
  186  * Attach all the sub-devices we can find
  187  */
  188 static int
  189 aha_isa_attach(device_t dev)
  190 {
  191         struct  aha_softc *aha = device_get_softc(dev);
  192         int              error = ENOMEM;
  193 
  194         aha->dev = dev;
  195         aha->portrid = 0;
  196         aha->port = bus_alloc_resource_anywhere(dev, SYS_RES_IOPORT,
  197             &aha->portrid, AHA_NREGS, RF_ACTIVE);
  198         if (!aha->port) {
  199                 device_printf(dev, "Unable to allocate I/O ports\n");
  200                 goto fail;
  201         }
  202 
  203         aha->irqrid = 0;
  204         aha->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &aha->irqrid,
  205             RF_ACTIVE);
  206         if (!aha->irq) {
  207                 device_printf(dev, "Unable to allocate excluse use of irq\n");
  208                 goto fail;
  209         }
  210 
  211         aha->drqrid = 0;
  212         aha->drq = bus_alloc_resource_any(dev, SYS_RES_DRQ, &aha->drqrid,
  213             RF_ACTIVE);
  214         if (!aha->drq) {
  215                 device_printf(dev, "Unable to allocate drq\n");
  216                 goto fail;
  217         }
  218 
  219 #if 0                           /* is the drq ever unset? */
  220         if (dev->id_drq != -1)
  221                 isa_dmacascade(dev->id_drq);
  222 #endif
  223         isa_dmacascade(rman_get_start(aha->drq));
  224 
  225         /* Allocate our parent dmatag */
  226         if (bus_dma_tag_create( /* parent       */ bus_get_dma_tag(dev),
  227                                 /* alignemnt    */ 1,
  228                                 /* boundary     */ 0,
  229                                 /* lowaddr      */ BUS_SPACE_MAXADDR_24BIT,
  230                                 /* highaddr     */ BUS_SPACE_MAXADDR,
  231                                 /* filter       */ NULL,
  232                                 /* filterarg    */ NULL,
  233                                 /* maxsize      */ BUS_SPACE_MAXSIZE_24BIT,
  234                                 /* nsegments    */ ~0,
  235                                 /* maxsegsz     */ BUS_SPACE_MAXSIZE_24BIT,
  236                                 /* flags        */ 0,
  237                                 /* lockfunc     */ NULL,
  238                                 /* lockarg      */ NULL,
  239                                 &aha->parent_dmat) != 0) {
  240                 device_printf(dev, "dma tag create failed.\n");
  241                 goto fail;
  242         }                              
  243 
  244         if (aha_init(aha)) {
  245                 device_printf(dev, "init failed\n");
  246                 goto fail;
  247         }
  248         /*
  249          * The 1542A and B look the same.  So we guess based on
  250          * the firmware revision.  It appears that only rev 0 is on
  251          * the A cards.
  252          */
  253         if (aha->boardid <= BOARD_1542 && aha->fw_major == 0) {
  254                 device_printf(dev, "154xA may not work\n");
  255                 aha->ccb_sg_opcode = INITIATOR_SG_CCB;
  256                 aha->ccb_ccb_opcode = INITIATOR_CCB;
  257         }
  258         
  259         error = aha_attach(aha);
  260         if (error) {
  261                 device_printf(dev, "attach failed\n");
  262                 goto fail;
  263         }
  264 
  265         error = bus_setup_intr(dev, aha->irq, INTR_TYPE_CAM|INTR_ENTROPY|
  266             INTR_MPSAFE, NULL, aha_intr, aha, &aha->ih);
  267         if (error) {
  268                 device_printf(dev, "Unable to register interrupt handler\n");
  269                 aha_detach(aha);
  270                 goto fail;
  271         }
  272 
  273         return (0);
  274 fail: ;
  275         aha_free(aha);
  276         bus_free_resource(dev, SYS_RES_IOPORT, aha->port);
  277         bus_free_resource(dev, SYS_RES_IRQ, aha->irq);
  278         bus_free_resource(dev, SYS_RES_DRQ, aha->drq);
  279         return (error);
  280 }
  281 
  282 static int
  283 aha_isa_detach(device_t dev)
  284 {
  285         struct aha_softc *aha = (struct aha_softc *)device_get_softc(dev);
  286         int error;
  287 
  288         error = bus_teardown_intr(dev, aha->irq, aha->ih);
  289         if (error)
  290                 device_printf(dev, "failed to unregister interrupt handler\n");
  291 
  292         error = aha_detach(aha);
  293         if (error) {
  294                 device_printf(dev, "detach failed\n");
  295                 return (error);
  296         }
  297         aha_free(aha);
  298         bus_free_resource(dev, SYS_RES_IOPORT, aha->port);
  299         bus_free_resource(dev, SYS_RES_IRQ, aha->irq);
  300         bus_free_resource(dev, SYS_RES_DRQ, aha->drq);
  301 
  302         return (0);
  303 }
  304 
  305 static void
  306 aha_isa_identify(driver_t *driver, device_t parent)
  307 {
  308         int i;
  309         bus_addr_t ioport;
  310         struct aha_softc aha;
  311         int rid;
  312         device_t child;
  313 
  314         /* Attempt to find an adapter */
  315         for (i = 0; i < nitems(aha_board_ports); i++) {
  316                 bzero(&aha, sizeof(aha));
  317                 ioport = aha_board_ports[i];
  318                 /*
  319                  * XXX Check to see if we have a hard-wired aha device at
  320                  * XXX this port, if so, skip.  This should also cover the
  321                  * XXX case where we are run multiple times due to, eg,
  322                  * XXX kldload/kldunload.
  323                  */
  324                 rid = 0;
  325                 aha.port = bus_alloc_resource(parent, SYS_RES_IOPORT, &rid,
  326                     ioport, ioport, AHA_NREGS, RF_ACTIVE);
  327                 if (aha.port == NULL)
  328                         continue;
  329                 aha_alloc(&aha);
  330                 /* See if there is really a card present */
  331                 if (aha_probe(&aha) || aha_fetch_adapter_info(&aha))
  332                         goto not_this_one;
  333                 child = BUS_ADD_CHILD(parent, ISA_ORDER_SPECULATIVE, "aha", -1);
  334                 bus_set_resource(child, SYS_RES_IOPORT, 0, ioport, AHA_NREGS);
  335                 /*
  336                  * Could query the board and set IRQ/DRQ, but probe does
  337                  * that.
  338                  */
  339         not_this_one:
  340                 bus_release_resource(parent, SYS_RES_IOPORT, rid, aha.port);
  341                 aha_free(&aha);
  342         }
  343 }
  344 
  345 static device_method_t aha_isa_methods[] = {
  346         /* Device interface */
  347         DEVMETHOD(device_probe,         aha_isa_probe),
  348         DEVMETHOD(device_attach,        aha_isa_attach),
  349         DEVMETHOD(device_detach,        aha_isa_detach),
  350         DEVMETHOD(device_identify,      aha_isa_identify),
  351 
  352         { 0, 0 }
  353 };
  354 
  355 static driver_t aha_isa_driver = {
  356         "aha",
  357         aha_isa_methods,
  358         sizeof(struct aha_softc),
  359 };
  360 
  361 static devclass_t aha_devclass;
  362 
  363 DRIVER_MODULE(aha, isa, aha_isa_driver, aha_devclass, 0, 0);
  364 MODULE_DEPEND(aha, isa, 1, 1, 1);
  365 ISA_PNP_INFO(aha_ids);

Cache object: a829a1374149c22fd987de74e5a89d6d


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