FreeBSD/Linux Kernel Cross Reference
sys/dev/ofisa/atppc_ofisa.c

     /* $NetBSD: atppc_ofisa.c,v 1.1 2004/01/28 18:47:13 jdolecek Exp $ */
     
     /*-
      * Copyright (c) 2004 The NetBSD Foundation, Inc.
      * All rights reserved.
      *
      * This code is derived from software contributed to The NetBSD Foundation
      * by Jaromir Dolecek.
      *
     * 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: atppc_ofisa.c,v 1.1 2004/01/28 18:47:13 jdolecek Exp $");
    
    #include "opt_atppc.h"
    
    #include <sys/param.h>
    #include <sys/systm.h>
    #include <sys/errno.h>
    #include <sys/ioctl.h>
    #include <sys/syslog.h>
    #include <sys/device.h>
    #include <sys/proc.h>
    #include <sys/termios.h>
    
    #include <machine/bus.h>
    
    #include <dev/ofw/openfirm.h>
    #include <dev/isa/isavar.h>
    #include <dev/ofisa/ofisavar.h>
    
    #include <dev/ic/atppcvar.h>
    #include <dev/isa/atppc_isadma.h>
    
    static int      atppc_ofisa_match(struct device *, struct cfdata *, void *);
    static void     atppc_ofisa_attach(struct device *, struct device *, void *);
    
    struct atppc_ofisa_softc {
            struct atppc_softc sc_atppc;
    
            isa_chipset_tag_t sc_ic;
            int sc_drq;
    };
    
    CFATTACH_DECL(atppc_ofisa, sizeof(struct atppc_ofisa_softc), atppc_ofisa_match,
        atppc_ofisa_attach, NULL, NULL);
    
    static int atppc_ofisa_dma_start(struct atppc_softc *, void *, u_int, 
            u_int8_t);
    static int atppc_ofisa_dma_finish(struct atppc_softc *);
    static int atppc_ofisa_dma_abort(struct atppc_softc *);
    static int atppc_ofisa_dma_malloc(struct device *, caddr_t *, bus_addr_t *, 
            bus_size_t);
    static void atppc_ofisa_dma_free(struct device *, caddr_t *, bus_addr_t *, 
            bus_size_t);
    /*
     * atppc_ofisa_match: autoconf(9) match routine
     */
    static int
    atppc_ofisa_match(struct device *parent, struct cfdata *match, void *aux)
    {
            struct ofisa_attach_args *aa = aux;
            static const char *const compatible_strings[] = { "pnpPNP,401", NULL };
            int rv = 0;
    
            if (of_compatible(aa->oba.oba_phandle, compatible_strings) != -1)
                    rv = 5;
    #ifdef _LPT_OFISA_MD_MATCH
            if (!rv)
                    rv = lpt_ofisa_md_match(parent, match, aux);
    #endif
            return (rv);
   }
   
   static void
   atppc_ofisa_attach(struct device *parent, struct device *self, void *aux)
   {
           struct atppc_softc *sc = (struct atppc_softc *) self;
           struct atppc_ofisa_softc *asc = (struct atppc_ofisa_softc *)self;
           struct ofisa_attach_args *aa = aux;
           struct ofisa_reg_desc reg;
           struct ofisa_intr_desc intr;
           struct ofisa_dma_desc dma;
           int n;
   
           sc->sc_dev_ok = ATPPC_NOATTACH;
   
           printf(": AT Parallel Port\n");
   
           /* find our I/O space */
           n = ofisa_reg_get(aa->oba.oba_phandle, &reg, 1);
   #ifdef _LPT_OFISA_MD_REG_FIXUP
           n = lpt_ofisa_md_reg_fixup(parent, self, aux, &reg, 1, n);
   #endif
           if (n != 1) {
                   printf("%s: unable to find i/o register resource\n",
                       sc->sc_dev.dv_xname);
                   return;
           }
   
           /* find our IRQ */
           n = ofisa_intr_get(aa->oba.oba_phandle, &intr, 1);
   #ifdef _LPT_OFISA_MD_INTR_FIXUP
           n = lpt_ofisa_md_intr_fixup(parent, self, aux, &intr, 1, n);
   #endif
           if (n != 1) {
                   printf("%s: unable to find irq resource\n",
                       sc->sc_dev.dv_xname);
                   return;
           }
   
           /* find our DRQ */
           if (ofisa_dma_get(aa->oba.oba_phandle, &dma, 1) != 1) {
                   printf("%s: unable to find DMA data\n",
                       sc->sc_dev.dv_xname);
                   return;
           }
           asc->sc_drq = dma.drq;
   
           /* Attach */
           sc->sc_iot = (reg.type == OFISA_REG_TYPE_IO) ? aa->iot : aa->memt;
           sc->sc_has = 0;
           asc->sc_ic = aa->ic;
   
           sc->sc_dev_ok = ATPPC_ATTACHED;
   
           if (bus_space_map(sc->sc_iot, reg.addr, reg.len, 0,
                   &sc->sc_ioh) != 0) {
                   printf("%s: attempt to map bus space failed, device not "
                           "properly attached.\n", self->dv_xname);
                   return;
           }
   
           sc->sc_ieh = isa_intr_establish(aa->ic, intr.irq, intr.share,
               IPL_TTY, atppcintr, sc);
           sc->sc_has |= ATPPC_HAS_INTR;
   
           /* setup DMA hooks */
           if (atppc_isadma_setup(sc, asc->sc_ic, asc->sc_drq) == 0) {
                   sc->sc_has |= ATPPC_HAS_DMA;
                   sc->sc_dma_start = atppc_ofisa_dma_start;
                   sc->sc_dma_finish = atppc_ofisa_dma_finish;
                   sc->sc_dma_abort = atppc_ofisa_dma_abort;
                   sc->sc_dma_malloc = atppc_ofisa_dma_malloc;
                   sc->sc_dma_free = atppc_ofisa_dma_free;
           }
   
           /* Run soft configuration attach */
           atppc_sc_attach(sc);
   }
   
   /* Start DMA operation over ISA bus */
   static int 
   atppc_ofisa_dma_start(struct atppc_softc *lsc, void *buf, u_int nbytes,
           u_int8_t mode)
   {
           struct atppc_ofisa_softc * sc = (struct atppc_ofisa_softc *) lsc;
           
           return atppc_isadma_start(sc->sc_ic, sc->sc_drq, buf, nbytes, mode);
   }
   
   /* Stop DMA operation over ISA bus */
   static int 
   atppc_ofisa_dma_finish(struct atppc_softc * lsc)
   {
           struct atppc_ofisa_softc * sc = (struct atppc_ofisa_softc *) lsc;
           
           return atppc_isadma_finish(sc->sc_ic, sc->sc_drq);
   }
   
   /* Abort DMA operation over ISA bus */
   int 
   atppc_ofisa_dma_abort(struct atppc_softc * lsc)
   {
           struct atppc_ofisa_softc * sc = (struct atppc_ofisa_softc *) lsc;
           
           return atppc_isadma_abort(sc->sc_ic, sc->sc_drq);
   }
   
   /* Allocate memory for DMA over ISA bus */ 
   int
   atppc_ofisa_dma_malloc(struct device * dev, caddr_t * buf, bus_addr_t * bus_addr,
           bus_size_t size)
   {
           struct atppc_ofisa_softc * sc = (struct atppc_ofisa_softc *) dev;
   
           return atppc_isadma_malloc(sc->sc_ic, sc->sc_drq, buf, bus_addr, size);
   }
   
   /* Free memory allocated by atppc_isa_dma_malloc() */ 
   void 
   atppc_ofisa_dma_free(struct device * dev, caddr_t * buf, bus_addr_t * bus_addr, 
           bus_size_t size)
   {
           struct atppc_ofisa_softc * sc = (struct atppc_ofisa_softc *) dev;
   
           return atppc_isadma_free(sc->sc_ic, sc->sc_drq, buf, bus_addr, size);
   }

Cache object: eabdf647f07516092958c476d5c1b86f