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

     /* $NetBSD: if_mtd_pci.c,v 1.3 2003/10/15 06:32:35 simonb Exp $ */
     
     /*-
      * Copyright (c) 2002 The NetBSD Foundation, Inc.
      * All rights reserved.
      *
      * This code is derived from software contributed to The NetBSD Foundation
      * by Peter Bex <Peter.Bex@student.kun.nl>.
      *
     * 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.
     */
    
    /*
     * PCI interface for MTD803 cards
     * Written by Peter Bex (peter.bex@student.kun.nl)
     */
    
    /* TODO: Check why in IO space, the MII won't work. Memory mapped works */
    
    #include <sys/cdefs.h>
    __KERNEL_RCSID(0, "$NetBSD: if_mtd_pci.c,v 1.3 2003/10/15 06:32:35 simonb Exp $");
    
    #include <sys/param.h>
    #include <sys/device.h>
    #include <sys/systm.h>
    #include <sys/socket.h>
    #include <net/if.h>
    #include <net/if_ether.h>
    #include <net/if_media.h>
    #include <machine/bus.h>
    #include <dev/mii/miivar.h>
    #include <dev/ic/mtd803reg.h>
    #include <dev/ic/mtd803var.h>
    #include <dev/pci/pcidevs.h>
    #include <dev/pci/pcireg.h>
    #include <dev/pci/pcivar.h>
    
    #define PCI_IO_MAP_REG          0x10
    #define PCI_MEM_MAP_REG         0x14
    
    struct mtd_pci_device_id {
            pci_vendor_id_t         vendor;         /* PCI vendor ID */
            pci_product_id_t        product;        /* PCI product ID */
    };
    
    static struct mtd_pci_device_id mtd_ids[] = {
            { PCI_VENDOR_MYSON, PCI_PRODUCT_MYSON_MTD803 },
            { 0, 0 }
    };
    
    int     mtd_pci_match __P((struct device *, struct cfdata *, void *));
    void    mtd_pci_attach __P((struct device *, struct device *, void *));
    
    CFATTACH_DECL(mtd_pci, sizeof(struct mtd_softc), mtd_pci_match, mtd_pci_attach,
        NULL, NULL);
    
    int
    mtd_pci_match(parent, match, aux)
            struct device *parent;
            struct cfdata *match;
            void *aux;
    {
            struct pci_attach_args *pa = aux;
            struct mtd_pci_device_id *id;
    
            for (id = mtd_ids; id->vendor != 0; ++id) {
                    if (PCI_VENDOR(pa->pa_id) == id->vendor &&
                        PCI_PRODUCT(pa->pa_id) == id->product)
                            return (1);
            }
            return (0);
    }
    
   void
   mtd_pci_attach(parent, self, aux)
           struct device *parent;
           struct device *self;
           void *aux;
   {
           struct pci_attach_args * const pa = aux;
           struct mtd_softc * const sc = (void *)self;
           pci_intr_handle_t ih;
           const char *intrstring = NULL;
           bus_space_tag_t iot, memt;
           bus_space_handle_t ioh, memh;
           int io_valid, mem_valid;
           char devinfo[256];
   
           pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo);
           printf(": %s (rev. 0x%02x)\n", devinfo, PCI_REVISION(pa->pa_class));
   
           io_valid = (pci_mapreg_map(pa, PCI_IO_MAP_REG, PCI_MAPREG_TYPE_IO,
                           0, &iot, &ioh, NULL, NULL) == 0);
           mem_valid = (pci_mapreg_map(pa, PCI_MEM_MAP_REG, PCI_MAPREG_TYPE_MEM
                           | PCI_MAPREG_MEM_TYPE_32BIT, 0, &memt, &memh, 
                           NULL, NULL) == 0);
   
           if (mem_valid) {
                   sc->bus_tag = memt;
                   sc->bus_handle = memh;
           } else if (io_valid) {
                   sc->bus_tag = iot;
                   sc->bus_handle = ioh;
           } else {
                   printf("%s: could not map memory or i/o space\n",
                           sc->dev.dv_xname);
                   return;
           }
           sc->dma_tag = pa->pa_dmat;
   
           /* Do generic attach. Seems this must be done before setting IRQ */
           mtd_config(sc);
   
           if (pci_intr_map(pa, &ih)) {
                   printf("%s: could not map interrupt\n", sc->dev.dv_xname);
                   return;
           }
           intrstring = pci_intr_string(pa->pa_pc, ih);
   
           if (pci_intr_establish(pa->pa_pc, ih, IPL_NET, mtd_irq_h, sc) == NULL) {
                   printf("%s: could not establish interrupt", sc->dev.dv_xname);
                   if (intrstring != NULL)
                           printf(" at %s", intrstring);
                   printf("\n");
                   return;
           } else {
                   printf("%s: using %s for interrupt\n",
                           sc->dev.dv_xname,
                           intrstring ? intrstring : "unknown interrupt");
           }
   }

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