sx_pci.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  * Device driver for Specialix I/O8+ multiport serial card.
    3  *
    4  * Copyright 2003 Frank Mayhar <frank@exit.com>
    5  *
    6  * Derived from the "si" driver by Peter Wemm <peter@netplex.com.au>, using
    7  * lots of information from the Linux "specialix" driver by Roger Wolff
    8  * <R.E.Wolff@BitWizard.nl> and from the Intel CD1865 "Intelligent Eight-
    9  * Channel Communications Controller" datasheet.  Roger was also nice
   10  * enough to answer numerous questions about stuff specific to the I/O8+
   11  * not covered by the CD1865 datasheet.
   12  *
   13  * Redistribution and use in source and binary forms, with or without
   14  * modification, are permitted provided that the following conditions
   15  * are met:
   16  * 1. Redistributions of source code must retain the above copyright
   17  *    notices, this list of conditions and the following disclaimer.
   18  * 2. Redistributions in binary form must reproduce the above copyright
   19  *    notices, this list of conditions and the following disclaimer in the
   20  *    documentation and/or other materials provided with the distribution.
   21  *
   22  * THIS SOFTWARE IS PROVIDED BY ``AS IS'' AND ANY EXPRESS OR IMPLIED
   23  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
   24  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
   25  * NO EVENT SHALL THE AUTHORS BE LIABLE.
   26  *
   27  * $FreeBSD: releng/5.3/sys/dev/sx/sx_pci.c 129879 2004-05-30 20:08:47Z phk $
   28  */
   29 
   30 #include <sys/param.h>
   31 #include <sys/systm.h>
   32 #include <sys/kernel.h>
   33 #include <sys/module.h>
   34 #include <sys/bus.h>
   35 #include <sys/tty.h>
   36 #include <machine/resource.h>   
   37 #include <machine/bus.h>
   38 #include <machine/clock.h>
   39 #include <sys/rman.h>
   40 
   41 #include <dev/sx/cd1865.h>
   42 #include <dev/sx/sxvar.h>
   43 #include <dev/sx/sx.h>
   44 #include <dev/sx/sx_util.h>
   45 
   46 #include <dev/pci/pcivar.h>
   47 
   48 static int
   49 sx_pci_probe(
   50         device_t dev)
   51 {
   52         const char *desc = NULL;
   53 
   54         switch (pci_get_devid(dev)) {
   55                 case 0x200011cb:
   56                         if (pci_get_subdevice(dev) == (uint16_t)0xb008) {
   57                                 desc = "Specialix I/O8+ Multiport Serial Card";
   58                         }
   59                         break;
   60         }
   61         if (desc) {
   62                 device_set_desc(dev, desc);
   63                 return 0;
   64         }
   65         return ENXIO;
   66 }
   67 
   68 static int
   69 sx_pci_attach(device_t dev)
   70 {
   71         struct sx_softc *sc;
   72         void *ih;
   73         int error;
   74 
   75         error = 0;
   76         ih = NULL;
   77         sc = device_get_softc(dev);
   78 
   79         sc->sc_io_rid = 0x18;
   80         sc->sc_io_res = bus_alloc_resource(dev,
   81                                            SYS_RES_IOPORT,
   82                                            &sc->sc_io_rid,
   83                                            0, ~0, 1,
   84                                            RF_ACTIVE);
   85         if (!sc->sc_io_res) {
   86                 device_printf(dev, "can't map I/O\n");
   87                 goto fail;
   88         }
   89         sc->sc_st = rman_get_bustag(sc->sc_io_res);
   90         sc->sc_sh = rman_get_bushandle(sc->sc_io_res);
   91 
   92         /*
   93          * Now that we have the bus handle, we can make certain that this
   94          * is an I/O8+.
   95          */
   96         if (sx_probe_io8(dev)) {
   97                 device_printf(dev, "Oops!  Device is not an I/O8+ board!\n");
   98                 goto fail;
   99         }
  100 
  101         /*sc->sc_paddr = (caddr_t)rman_get_start(sc->sc_io_res);*/
  102         /*sc->sc_maddr = rman_get_virtual(sc->sc_io_res);*/
  103 
  104         sc->sc_irq_rid = 0;
  105         sc->sc_irq_res = bus_alloc_resource(dev,
  106                                             SYS_RES_IRQ,
  107                                             &sc->sc_irq_rid,
  108                                             0, ~0, 1,
  109                                             RF_ACTIVE | RF_SHAREABLE);
  110         if (!sc->sc_irq_res) {
  111                 device_printf(dev, "Can't map interrupt\n");
  112                 goto fail;
  113         }
  114         sc->sc_irq = rman_get_start(sc->sc_irq_res);
  115         error = bus_setup_intr(dev,
  116                                sc->sc_irq_res,
  117                                INTR_TYPE_TTY,
  118                                sx_intr,
  119                                sc, &ih);
  120         if (error) {
  121                 device_printf(dev, "Can't activate interrupt\n");
  122                 goto fail;
  123         }
  124 
  125         error = sxattach(dev);
  126         if (error)
  127                 goto fail;
  128         return (0);             /* success */
  129 
  130 fail:
  131         if (error == 0)
  132                 error = ENXIO;
  133         if (sc->sc_irq_res) {
  134                 if (ih)
  135                         bus_teardown_intr(dev, sc->sc_irq_res, ih);
  136                 bus_release_resource(dev,
  137                                      SYS_RES_IRQ,
  138                                      sc->sc_irq_rid,
  139                                      sc->sc_irq_res);
  140                 sc->sc_irq_res = 0;
  141         }
  142         if (sc->sc_io_res) {
  143                 bus_release_resource(dev,
  144                                      SYS_RES_IOPORT,
  145                                      sc->sc_io_rid,
  146                                      sc->sc_io_res);
  147                 sc->sc_io_res = 0;
  148         }
  149         return(error);
  150 }
  151 
  152 static device_method_t sx_pci_methods[] = {
  153         /* Device interface */
  154         DEVMETHOD(device_probe,         sx_pci_probe),
  155         DEVMETHOD(device_attach,        sx_pci_attach),
  156 /*      DEVMETHOD(device_detach,        sx_pci_detach),*/
  157 
  158         { 0, 0 }
  159 };
  160 
  161 static driver_t sx_pci_driver = {
  162         "sx",
  163         sx_pci_methods,
  164         sizeof(struct sx_softc),
  165 };
  166 
  167 DRIVER_MODULE(sx, pci, sx_pci_driver, sx_devclass, 0, 0);

Cache object: 0bdfec1d30d8ab9cbdfa197ce96fd81d

[ 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/sx/sx_pci.c

FreeBSD/Linux Kernel Cross Reference
sys/dev/sx/sx_pci.c