aha_mca.c

Version: - FREEBSD - FREEBSD-13-STABLE - FREEBSD-13-0 - FREEBSD-12-STABLE - FREEBSD-12-0 - FREEBSD-11-STABLE - FREEBSD-11-0 - FREEBSD-10-STABLE - FREEBSD-10-0 - FREEBSD-9-STABLE - FREEBSD-9-0 - FREEBSD-8-STABLE - FREEBSD-8-0 - FREEBSD-7-STABLE - FREEBSD-7-0 - FREEBSD-6-STABLE - FREEBSD-6-0 - FREEBSD-5-STABLE - FREEBSD-5-0 - FREEBSD-4-STABLE - FREEBSD-3-STABLE - FREEBSD22 - l41 - OPENBSD - linux-2.6 - MK84 - PLAN9 - xnu-8792
SearchContext: - none - 3 - 10

    1 /*-
    2  * Copyright (c) 1999 Matthew N. Dodd <winter@jurai.net>
    3  * All rights reserved.
    4  *
    5  * Redistribution and use in source and binary forms, with or without
    6  * modification, are permitted provided that the following conditions
    7  * are met:
    8  * 1. Redistributions of source code must retain the above copyright
    9  *    notice, this list of conditions and the following disclaimer.
   10  * 2. Redistributions in binary form must reproduce the above copyright
   11  *    notice, this list of conditions and the following disclaimer in the
   12  *    documentation and/or other materials provided with the distribution.
   13  *
   14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   24  * SUCH DAMAGE.
   25  *
   26  * $FreeBSD$
   27  *
   28  * Based on aha_isa.c
   29  */
   30 
   31 #include <sys/types.h>
   32 #include <sys/param.h>
   33 #include <sys/systm.h>
   34 #include <sys/kernel.h>
   35 
   36 #include <sys/module.h>
   37 #include <sys/bus.h>
   38 #include <machine/bus.h>
   39 #include <machine/resource.h>
   40 #include <sys/rman.h>
   41 
   42 #include <i386/isa/isa_dma.h>
   43 
   44 #include <dev/mca/mca_busreg.h>
   45 #include <dev/mca/mca_busvar.h>
   46 
   47 #include <dev/aha/ahareg.h>
   48 
   49 static struct mca_ident aha_mca_devs[] = {
   50         { 0x0f1f, "Adaptec AHA-1640 SCSI Adapter" },
   51         { 0, NULL },
   52 };
   53 
   54 #define AHA_MCA_IOPORT_POS              MCA_ADP_POS(MCA_POS1)
   55 # define AHA_MCA_IOPORT_MASK1           0x07
   56 # define AHA_MCA_IOPORT_MASK2           0xc0
   57 # define AHA_MCA_IOPORT_SIZE            0x03
   58 # define AHA_MCA_IOPORT(pos)            (0x30 + \
   59                                         (((u_int32_t)pos & \
   60                                                 AHA_MCA_IOPORT_MASK1) << 8) + \
   61                                         (((u_int32_t)pos & \
   62                                                 AHA_MCA_IOPORT_MASK2) >> 4))
   63 
   64 #define AHA_MCA_DRQ_POS                 MCA_ADP_POS(MCA_POS3)
   65 # define AHA_MCA_DRQ_MASK               0x0f
   66 # define AHA_MCA_DRQ(pos)               (pos & AHA_MCA_DRQ_MASK)
   67 
   68 #define AHA_MCA_IRQ_POS                 MCA_ADP_POS(MCA_POS2)
   69 # define AHA_MCA_IRQ_MASK               0x07
   70 # define AHA_MCA_IRQ(pos)               ((pos & AHA_MCA_IRQ_MASK) + 8)
   71 
   72 /*
   73  * Not needed as the board knows its config
   74  * internally and the ID will be fetched 
   75  * via AOP_INQUIRE_SETUP_INFO command.
   76  */
   77 #define AHA_MCA_SCSIID_POS              MCA_ADP_POS(MCA_POS2)
   78 #define AHA_MCA_SCSIID_MASK             0xe0
   79 #define AHA_MCA_SCSIID(pos)             ((pos & AHA_MCA_SCSIID_MASK) >> 5)
   80 
   81 static int
   82 aha_mca_probe (device_t dev)
   83 {
   84         const char *    desc;
   85         mca_id_t        id = mca_get_id(dev);
   86         u_int32_t       iobase = 0;
   87         u_int32_t       iosize = 0;
   88         u_int8_t        drq = 0;
   89         u_int8_t        irq = 0;
   90         u_int8_t        pos;
   91 
   92         desc = mca_match_id(id, aha_mca_devs);
   93         if (!desc)
   94                 return (ENXIO);
   95         device_set_desc(dev, desc);
   96 
   97         pos = mca_pos_read(dev, AHA_MCA_IOPORT_POS);
   98         iobase = AHA_MCA_IOPORT(pos);
   99         iosize = AHA_MCA_IOPORT_SIZE;
  100 
  101         pos = mca_pos_read(dev, AHA_MCA_DRQ_POS);
  102         drq = AHA_MCA_DRQ(pos);
  103 
  104         pos = mca_pos_read(dev, AHA_MCA_IRQ_POS);
  105         irq = AHA_MCA_IRQ(pos);
  106 
  107         mca_add_iospace(dev, iobase, iosize);
  108         mca_add_drq(dev, drq);
  109         mca_add_irq(dev, irq);
  110 
  111         aha_unit++;
  112 
  113         return (0);
  114 }
  115 
  116 static int
  117 aha_mca_attach (device_t dev)
  118 {
  119         struct aha_softc *      sc = NULL;
  120         struct resource *       io = NULL;
  121         struct resource *       irq = NULL;
  122         struct resource *       drq = NULL;
  123         int                     error = 0;
  124         int                     unit = device_get_unit(dev);
  125         int                     rid;
  126         void *                  ih;
  127 
  128         rid = 0;
  129         io = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid,
  130                                 0, ~0, 1, RF_ACTIVE);
  131         if (!io) {
  132                 device_printf(dev, "No I/O space?!\n");
  133                 error = ENOMEM;
  134                 goto bad;
  135         }
  136 
  137         rid = 0;
  138         irq = bus_alloc_resource(dev, SYS_RES_IRQ, &rid,
  139                                  0, ~0, 1, RF_ACTIVE);
  140         if (irq == NULL) {
  141                 device_printf(dev, "No IRQ?!\n");
  142                 error = ENOMEM;
  143                 goto bad;
  144         }
  145 
  146         rid = 0;
  147         drq = bus_alloc_resource(dev, SYS_RES_DRQ, &rid,
  148                                  0, ~0, 1, RF_ACTIVE);
  149         if (drq == NULL) {
  150                 device_printf(dev, "No DRQ?!\n");
  151                 error = ENOMEM;
  152                 goto bad;
  153         }
  154 
  155         sc = aha_alloc(unit, rman_get_bustag(io), rman_get_bushandle(io));
  156         if (sc == NULL) {
  157                 device_printf(dev, "aha_alloc() failed!\n");
  158                 error = ENOMEM;
  159                 goto bad;
  160         }
  161 
  162         error = aha_probe(sc);
  163         if (error) {
  164                 device_printf(dev, "aha_probe() failed!\n");
  165                 goto bad;
  166         }
  167 
  168         error = aha_fetch_adapter_info(sc);
  169         if (error) {
  170                 device_printf(dev, "aha_fetch_adapter_info() failed!\n");
  171                 goto bad;
  172         }
  173 
  174         isa_dmacascade(rman_get_start(drq));
  175 
  176         error = bus_dma_tag_create(/* parent    */      NULL,
  177                                    /* alignemnt */      1,
  178                                    /* boundary  */      0,
  179                                                         BUS_SPACE_MAXADDR_24BIT,
  180                                    /* highaddr  */      BUS_SPACE_MAXADDR,
  181                                                         NULL,
  182                                                         NULL,
  183                                    /* maxsize   */      BUS_SPACE_MAXSIZE_24BIT,
  184                                    /* nsegments */      BUS_SPACE_UNRESTRICTED,
  185                                    /* maxsegsz  */      BUS_SPACE_MAXSIZE_24BIT,
  186                                    /* flags     */      0,
  187                                                         &sc->parent_dmat);
  188         if (error) {
  189                 device_printf(dev, "bus_dma_tag_create() failed!\n");
  190                 goto bad;
  191         }                             
  192 
  193         error = aha_init(sc);
  194         if (error) {
  195                 device_printf(dev, "aha_init() failed\n");
  196                 goto bad;
  197         }
  198 
  199         error = aha_attach(sc);
  200         if (error) {
  201                 device_printf(dev, "aha_attach() failed\n");
  202                 goto bad;
  203         }
  204 
  205         error = bus_setup_intr(dev, irq, INTR_TYPE_CAM, aha_intr, sc, &ih);
  206         if (error) {
  207                 device_printf(dev, "Unable to register interrupt handler\n");
  208                 goto bad;
  209         }
  210 
  211         return (0);
  212 
  213 bad:
  214         aha_free(sc);
  215 
  216         if (io)
  217                 bus_release_resource(dev, SYS_RES_IOPORT, 0, io);
  218         if (irq)
  219                 bus_release_resource(dev, SYS_RES_IRQ, 0, irq);
  220         if (drq)
  221                 bus_release_resource(dev, SYS_RES_DRQ, 0, drq);
  222 
  223         return (error);
  224 }
  225 
  226 static device_method_t aha_mca_methods[] = {
  227         DEVMETHOD(device_probe,         aha_mca_probe),
  228         DEVMETHOD(device_attach,        aha_mca_attach),
  229 
  230         { 0, 0 }
  231 };
  232 
  233 static driver_t aha_mca_driver = {
  234         "aha",
  235         aha_mca_methods,
  236         1,
  237 /*
  238         sizeof(struct aha_softc *),
  239  */
  240 };
  241 
  242 static devclass_t aha_devclass;
  243 
  244 DRIVER_MODULE(aha, mca, aha_mca_driver, aha_devclass, 0, 0);

Cache object: 64601296fff2bea83f6de07f24f76c9a

[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]

This page is part of the FreeBSD/Linux Linux Kernel Cross-Reference, and was automatically generated using a modified version of the LXR engine.

FreeBSD/Linux Kernel Cross Reference sys/dev/aha/aha_mca.c

FreeBSD/Linux Kernel Cross Reference
sys/dev/aha/aha_mca.c