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/pdq/if_fea.c

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    1 /*-
    2  * Copyright (c) 1995, 1996 Matt Thomas <matt@3am-software.com>
    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. The name of the author may not be used to endorse or promote products
   11  *    derived from this software without specific prior written permission
   12  *
   13  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
   14  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   15  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   16  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
   17  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   18  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   19  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   20  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   21  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   22  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   23  *
   24  * $FreeBSD$
   25  */
   26 
   27 /*
   28  * DEC PDQ FDDI Controller
   29  *
   30  *      This module support the DEFEA EISA FDDI Controller.
   31  */
   32 
   33 #include <sys/param.h>
   34 #include <sys/systm.h>
   35 #include <sys/kernel.h>
   36 #include <sys/socket.h>
   37 
   38 #include <sys/module.h>
   39 #include <sys/bus.h>
   40 
   41 #include <machine/bus.h>
   42 #include <machine/resource.h>
   43 #include <sys/rman.h> 
   44 
   45 #include <net/if.h>
   46 #include <net/if_media.h>
   47 #include <net/fddi.h>
   48 
   49 #include <dev/eisa/eisaconf.h>
   50 
   51 #include <dev/pdq/pdq_freebsd.h>
   52 #include <dev/pdq/pdqreg.h>
   53 
   54 static void             pdq_eisa_subprobe       (pdq_bus_t, u_int32_t, u_int32_t *, u_int32_t *, u_int32_t *);
   55 static void             pdq_eisa_devinit        (pdq_softc_t *);
   56 static const char *     pdq_eisa_match          (eisa_id_t);
   57 
   58 static int              pdq_eisa_probe          (device_t);
   59 static int              pdq_eisa_attach         (device_t);
   60 static int              pdq_eisa_detach         (device_t);
   61 static int              pdq_eisa_shutdown       (device_t);
   62 static void             pdq_eisa_ifintr         (void *);
   63 
   64 #define DEFEA_IRQS                      0x0000FBA9U
   65 
   66 #define DEFEA_INTRENABLE                0x8     /* level interrupt */
   67 #define DEFEA_DECODE_IRQ(n)             ((DEFEA_IRQS >> ((n) << 2)) & 0x0f)
   68 
   69 #define EISA_DEVICE_ID_DEC_DEC3001      0x10a33001
   70 #define EISA_DEVICE_ID_DEC_DEC3002      0x10a33002
   71 #define EISA_DEVICE_ID_DEC_DEC3003      0x10a33003
   72 #define EISA_DEVICE_ID_DEC_DEC3004      0x10a33004
   73 
   74 static void
   75 pdq_eisa_subprobe(bc, iobase, maddr, msize, irq)
   76         pdq_bus_t       bc;
   77         u_int32_t       iobase;
   78         u_int32_t       *maddr;
   79         u_int32_t       *msize;
   80         u_int32_t       *irq;
   81 {
   82         if (irq != NULL)
   83                 *irq = DEFEA_DECODE_IRQ(PDQ_OS_IORD_8(bc, iobase, PDQ_EISA_IO_CONFIG_STAT_0) & 3);
   84         *maddr = (PDQ_OS_IORD_8(bc, iobase, PDQ_EISA_MEM_ADD_CMP_0) << 8)
   85                  | (PDQ_OS_IORD_8(bc, iobase, PDQ_EISA_MEM_ADD_CMP_1) << 16);
   86         *msize = (PDQ_OS_IORD_8(bc, iobase, PDQ_EISA_MEM_ADD_MASK_0) + 4) << 8;
   87 
   88         return;
   89 }
   90 
   91 static void
   92 pdq_eisa_devinit (sc)
   93         pdq_softc_t     *sc;
   94 {
   95         pdq_uint8_t     data;
   96 
   97         /*
   98          * Do the standard initialization for the DEFEA registers.
   99          */
  100         PDQ_OS_IOWR_8(sc->io_bst, sc->io_bsh, PDQ_EISA_FUNCTION_CTRL, 0x23);
  101         PDQ_OS_IOWR_8(sc->io_bst, sc->io_bsh, PDQ_EISA_IO_CMP_1_1, (sc->io_bsh >> 8) & 0xF0);
  102         PDQ_OS_IOWR_8(sc->io_bst, sc->io_bsh, PDQ_EISA_IO_CMP_0_1, (sc->io_bsh >> 8) & 0xF0);
  103         PDQ_OS_IOWR_8(sc->io_bst, sc->io_bsh, PDQ_EISA_SLOT_CTRL, 0x01);
  104         data = PDQ_OS_IORD_8(sc->io_bst, sc->io_bsh, PDQ_EISA_BURST_HOLDOFF);
  105 #if defined(PDQ_IOMAPPED)
  106         PDQ_OS_IOWR_8(sc->io_bst, sc->io_bsh, PDQ_EISA_BURST_HOLDOFF, data & ~1);
  107 #else
  108         PDQ_OS_IOWR_8(sc->io_bst, sc->io_bsh, PDQ_EISA_BURST_HOLDOFF, data | 1);
  109 #endif
  110         data = PDQ_OS_IORD_8(sc->io_bst, sc->io_bsh, PDQ_EISA_IO_CONFIG_STAT_0);
  111         PDQ_OS_IOWR_8(sc->io_bst, sc->io_bsh, PDQ_EISA_IO_CONFIG_STAT_0, data | DEFEA_INTRENABLE);
  112 
  113         return;
  114 }
  115 
  116 static const char *
  117 pdq_eisa_match (type)
  118         eisa_id_t       type;
  119 {
  120         switch (type) {
  121                 case EISA_DEVICE_ID_DEC_DEC3001:
  122                 case EISA_DEVICE_ID_DEC_DEC3002:
  123                 case EISA_DEVICE_ID_DEC_DEC3003:
  124                 case EISA_DEVICE_ID_DEC_DEC3004:
  125                         return ("DEC FDDIcontroller/EISA Adapter");
  126                         break;
  127                  default:
  128                         break;
  129         }
  130         return (NULL);
  131 }
  132 
  133 static int
  134 pdq_eisa_probe (dev)
  135         device_t        dev;
  136 {
  137         const char      *desc;
  138         u_int32_t       iobase;
  139         u_int32_t       irq;
  140         u_int32_t       maddr;
  141         u_int32_t       msize;
  142 
  143         u_int32_t       eisa_id = eisa_get_id(dev);;
  144 
  145         desc = pdq_eisa_match(eisa_id);
  146         if (!desc) {
  147                 return (ENXIO);
  148         }
  149 
  150         device_set_desc(dev, desc);
  151 
  152         iobase = eisa_get_slot(dev) * EISA_SLOT_SIZE;
  153         pdq_eisa_subprobe((pdq_bus_t)SYS_RES_IOPORT, iobase, &maddr, &msize, &irq);
  154 
  155         eisa_add_iospace(dev, iobase, 0x200, RESVADDR_NONE);
  156         eisa_add_mspace(dev, maddr, msize, RESVADDR_NONE);
  157         eisa_add_intr(dev, irq, EISA_TRIGGER_LEVEL);
  158         
  159         return (0);
  160 }
  161 
  162 static void
  163 pdq_eisa_ifintr(arg)
  164         void *          arg;
  165 {
  166         device_t        dev;
  167         pdq_softc_t *   sc;
  168 
  169         dev = (device_t)arg;
  170         sc = device_get_softc(dev);
  171 
  172         PDQ_LOCK(sc);
  173         (void) pdq_interrupt(sc->sc_pdq);
  174         PDQ_LOCK(sc);
  175 
  176         return;
  177 }
  178 
  179 static int
  180 pdq_eisa_attach (dev)
  181         device_t        dev;
  182 {
  183         pdq_softc_t *   sc;
  184         struct ifnet *  ifp;
  185         int             error;
  186 
  187         sc = device_get_softc(dev);
  188         ifp = sc->ifp;
  189 
  190         sc->dev = dev;
  191 
  192         sc->io_rid = 0;
  193         sc->io_type = SYS_RES_IOPORT;
  194         sc->io = bus_alloc_resource_any(dev, sc->io_type, &sc->io_rid,
  195                                         RF_ACTIVE);
  196         if (!sc->io) {
  197                 device_printf(dev, "Unable to allocate I/O space resource.\n");
  198                 error = ENXIO;
  199                 goto bad;
  200         }
  201         sc->io_bsh = rman_get_bushandle(sc->io);
  202         sc->io_bst = rman_get_bustag(sc->io);
  203 
  204         sc->mem_rid = 0;
  205         sc->mem_type = SYS_RES_MEMORY;
  206         sc->mem = bus_alloc_resource_any(dev, sc->mem_type, &sc->mem_rid,
  207                                          RF_ACTIVE);
  208         if (!sc->mem) {
  209                 device_printf(dev, "Unable to allocate memory resource.\n");
  210                 error = ENXIO;
  211                 goto bad;
  212         }
  213         sc->mem_bsh = rman_get_bushandle(sc->mem);
  214         sc->mem_bst = rman_get_bustag(sc->mem);
  215 
  216         sc->irq_rid = 0;
  217         sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->irq_rid,
  218                                          RF_SHAREABLE | RF_ACTIVE);
  219         if (!sc->irq) {
  220                 device_printf(dev, "Unable to allocate interrupt resource.\n");
  221                 error = ENXIO;
  222                 goto bad;
  223         }
  224 
  225         if_initname(ifp, device_get_name(dev), device_get_unit(dev));
  226 
  227         pdq_eisa_devinit(sc);
  228         sc->sc_pdq = pdq_initialize(sc->mem_bst, sc->mem_bsh,
  229                                     ifp->if_xname, -1,
  230                                     (void *)sc, PDQ_DEFEA);
  231         if (sc->sc_pdq == NULL) {
  232                 device_printf(dev, "Initialization failed.\n");
  233                 error = ENXIO;
  234                 goto bad;
  235         }
  236 
  237         error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET,
  238                                NULL, pdq_eisa_ifintr, dev, &sc->irq_ih);
  239         if (error) {
  240                 device_printf(dev, "Failed to setup interrupt handler.\n");
  241                 error = ENXIO;
  242                 goto bad;
  243         }
  244 
  245         pdq_ifattach(sc, sc->sc_pdq->pdq_hwaddr.lanaddr_bytes);
  246 
  247         return (0);
  248 bad:
  249         pdq_free(dev);
  250         return (error);
  251 }
  252 
  253 static int
  254 pdq_eisa_detach (dev)
  255         device_t        dev;
  256 {
  257         pdq_softc_t *   sc;
  258 
  259         sc = device_get_softc(dev);
  260         pdq_ifdetach(sc);
  261 
  262         return (0);
  263 }
  264 
  265 static int
  266 pdq_eisa_shutdown(dev)
  267         device_t        dev;
  268 {
  269         pdq_softc_t *   sc;
  270 
  271         sc = device_get_softc(dev);
  272         pdq_hwreset(sc->sc_pdq);
  273 
  274         return (0);
  275 }
  276 
  277 static device_method_t pdq_eisa_methods[] = {
  278         DEVMETHOD(device_probe,         pdq_eisa_probe),
  279         DEVMETHOD(device_attach,        pdq_eisa_attach),
  280         DEVMETHOD(device_attach,        pdq_eisa_detach),
  281         DEVMETHOD(device_shutdown,      pdq_eisa_shutdown),
  282 
  283         { 0, 0 }
  284 };
  285 
  286 static driver_t pdq_eisa_driver = {
  287         "fea",
  288         pdq_eisa_methods,
  289         sizeof(pdq_softc_t),
  290 };
  291 
  292 DRIVER_MODULE(fea, eisa, pdq_eisa_driver, pdq_devclass, 0, 0);
  293 /* MODULE_DEPEND(fea, eisa, 1, 1, 1); */
  294 MODULE_DEPEND(fea, fddi, 1, 1, 1);

Cache object: 81ae1d5a4dc4663d87662fc23612c94b


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