FreeBSD/Linux Kernel Cross Reference
sys/dev/pci/fwlynx_pci.c

     /*      $NetBSD: fwlynx_pci.c,v 1.7 2003/01/31 00:07:42 thorpej Exp $   */
     
     /*-
      * Copyright (c) 2000 The NetBSD Foundation, Inc.
      * All rights reserved.
      *
      * This code is derived from software contributed to The NetBSD Foundation
      * by Matt Thomas of 3am Software Foundry.
      *
     * Redistribution and use in source and binary forms, with or without
     * modification, are permitted provided that the following conditions
     * are met:
     * 1. Redistributions of source code must retain the above copyright
     *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     * 3. All advertising materials mentioning features or use of this software
     *    must display the following acknowledgement:
     *        This product includes software developed by the NetBSD
     *        Foundation, Inc. and its contributors.
     * 4. Neither the name of The NetBSD Foundation nor the names of its
     *    contributors may be used to endorse or promote products derived
     *    from this software without specific prior written permission.
     *
     * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     * POSSIBILITY OF SUCH DAMAGE.
     */
    
    #include <sys/cdefs.h>
    __KERNEL_RCSID(0, "$NetBSD: fwlynx_pci.c,v 1.7 2003/01/31 00:07:42 thorpej Exp $");
    
    #include <sys/param.h>
    #include <sys/systm.h>
    #include <sys/socket.h>
    #include <sys/device.h>
    
    #include <machine/bus.h>
    #include <machine/intr.h>
    
    #include <dev/pci/pcireg.h>
    #include <dev/pci/pcivar.h>
    #include <dev/ieee1394/ieee1394reg.h>
    #include <dev/ieee1394/ieee1394var.h>
    #include <dev/ieee1394/fwlynxreg.h>
    #include <dev/ieee1394/fwlynxvar.h>
    
    struct fwlynx_pci_softc {
            struct fwlynx_softc psc_sc;
            pci_chipset_tag_t psc_pc;
            void *psc_ih;
    };
    
    static int fwlynx_pci_match __P((struct device *, struct cfdata *, void *));
    static void fwlynx_pci_attach __P((struct device *, struct device *, void *));
    
    CFATTACH_DECL(fwlynx_pci, sizeof(struct fwlynx_pci_softc),
        fwlynx_pci_match, fwlynx_pci_attach, NULL, NULL);
    
    static int
    fwlynx_pci_match(struct device *parent, struct cfdata *match, void *aux)
    {
            struct pci_attach_args *pa = (struct pci_attach_args *) aux;
    
            if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_TI &&
                PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_TI_TSB12LV21)
                    return 1;
     
            return 0;
    }
    
    static void
    fwlynx_pci_attach(struct device *parent, struct device *self, void *aux)
    {
            struct pci_attach_args *pa = (struct pci_attach_args *) aux;
            struct fwlynx_pci_softc *psc = (struct fwlynx_pci_softc *) self;
            char devinfo[256];
            char const *intrstr;
            pci_intr_handle_t ih;
            u_int32_t csr;
    
            aprint_naive(": IEEE 1394 Controller\n");
    
            pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo);
            aprint_normal(": %s (rev. 0x%02x)\n", devinfo,
                PCI_REVISION(pa->pa_class));
    
            psc->psc_sc.sc_dmat = pa->pa_dmat;
            psc->psc_pc = pa->pa_pc;
            psc->psc_tag = pa->pa_tag;
   
           /* Map I/O registers */
           if (pci_mapreg_map(pa, PCI_LYNX_MAP_REGISTER, PCI_MAPREG_TYPE_MEM, 0,
                              &psc->psc_sc.sc_memt, &psc->psc_sc.sc_memh,
                              NULL, &psc->psc_sc.sc_memsize)) {
                   aprint_error("%s: can't map register space\n", self->dv_xname);
                   return;
           }
   
           /* Disable interrupts, so we don't get any spurious ones. */
           pci_conf_write(psc->psc_pc, psc->psc_tag, 0);
   
           /* Enable the device. */
           csr = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG);
           pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG,
                          csr | PCI_COMMAND_MASTER_ENABLE);
   
           /* Map and establish the interrupt. */
           if (pci_intr_map(pa->pa_pc, pa->pa_intrtag, pa->pa_intrpin,
               pa->pa_intrline, &ih)) {
                   aprint_error("%s: couldn't map interrupt\n", self->dv_xname);
                   return;
           }
           intrstr = pci_intr_string(pa->pa_pc, ih);
           psc->psc_ih = pci_intr_establish(pa->pa_pc, ih, IPL_BIO,
               fwlynx_intr, &psc->psc_sc);
           if (psc->psc_ih == NULL) {
                   aprint_error("%s: couldn't establish interrupt",
                       self->dv_xname);
                   if (intrstr != NULL)
                           aprint_normal(" at %s", intrstr);
                   aprint_normal("\n");
                   return;
           }
           aprint_normal("%s: interrupting at %s\n", self->dv_xname, intrstr);
   
           if (fwlynx_init(&psc->psc_sc, pci_intr_evcnt(pa->pa_pc, ih)) != 0) {
                   pci_intr_disestablish(pa->pa_pc, psc->psc_ih);
                   bus_space_unmap(psc->psc_sc.sc_memt, psc->psc_sc.sc_memh,
                       psc->psc_sc.sc_memsize);
           }
   }

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