FreeBSD/Linux Kernel Cross Reference
sys/dev/ic/wdc_upc.c

     /* $NetBSD: wdc_upc.c,v 1.23 2006/10/01 21:50:33 bjh21 Exp $ */
     /*-
      * Copyright (c) 2000 Ben Harris
      * All rights reserved.
      *
      * 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. The name of the author may not be used to endorse or promote products
     *    derived from this software without specific prior written permission.
     *
     * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
     */
    /* This file is part of NetBSD/arm26 -- a port of NetBSD to ARM2/3 machines. */
    
    #include <sys/cdefs.h>
    __KERNEL_RCSID(0, "$NetBSD: wdc_upc.c,v 1.23 2006/10/01 21:50:33 bjh21 Exp $");
    
    #include <sys/param.h>
    #include <sys/device.h>
    #include <sys/malloc.h>
    #include <sys/systm.h>
    
    #include <machine/bus.h>
    #include <machine/intr.h>
    
    #include <dev/ata/atavar.h> /* XXX needed by wdcvar.h */
    
    #include <dev/ic/upcvar.h>
    #include <dev/ic/wdcreg.h>
    #include <dev/ic/wdcvar.h>
    
    static int wdc_upc_match(struct device *, struct cfdata *, void *);
    static void wdc_upc_attach(struct device *, struct device *, void *);
    
    struct wdc_upc_softc {
            struct wdc_softc sc_wdc;
            struct ata_channel *sc_chanlist[1];
            struct ata_channel sc_channel;
            struct ata_queue sc_chqueue;
            struct wdc_regs sc_wdc_regs;
    };
    
    CFATTACH_DECL(wdc_upc, sizeof(struct wdc_upc_softc),
        wdc_upc_match, wdc_upc_attach, NULL, NULL);
    
    static int
    wdc_upc_match(struct device *parent, struct cfdata *cf, void *aux)
    {
    
            /* upc_submatch does it all anyway */
            return 1;
    }
    
    static void
    wdc_upc_attach(struct device *parent, struct device *self, void *aux)
    {
            struct wdc_upc_softc *sc = (struct wdc_upc_softc *)self;
            struct wdc_regs *wdr;
            struct upc_attach_args *ua = aux;
            int i;
    
            sc->sc_wdc.regs = wdr = &sc->sc_wdc_regs;
    
            sc->sc_wdc.sc_atac.atac_cap = ATAC_CAP_DATA16;
            sc->sc_wdc.sc_atac.atac_pio_cap = 1; /* XXX ??? */
            sc->sc_wdc.sc_atac.atac_nchannels = 1;
            sc->sc_chanlist[0] = &sc->sc_channel;
            sc->sc_wdc.sc_atac.atac_channels = sc->sc_chanlist;
            wdr->cmd_iot = ua->ua_iot;
            wdr->cmd_baseioh = ua->ua_ioh;
            wdr->ctl_iot = ua->ua_iot;
            wdr->ctl_ioh = ua->ua_ioh2;
            sc->sc_channel.ch_channel = 0;
            sc->sc_channel.ch_atac = &sc->sc_wdc.sc_atac;
            sc->sc_channel.ch_queue = &sc->sc_chqueue;
            sc->sc_channel.ch_ndrive = 2;
            for (i = 0; i < WDC_NREG; i++) {
                    if (bus_space_subregion(ua->ua_iot, ua->ua_ioh, i,
                        i == 0 ? 4 : 1, &wdr->cmd_iohs[i]) != 0) {
                            aprint_error("%s: can't subregion I/O space\n",
                                sc->sc_wdc.sc_atac.atac_dev.dv_xname);
                            return;
                    }
            }
           wdc_init_shadow_regs(&sc->sc_channel);
   
           upc_intr_establish(ua->ua_irqhandle, IPL_BIO, wdcintr,
                              &sc->sc_channel);
   
           aprint_normal("\n");
           aprint_naive("\n");
   
           wdcattach(&sc->sc_channel);
   }

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