FreeBSD/Linux Kernel Cross Reference
sys/dev/acpi/atppc_acpi.c

     /* $NetBSD: atppc_acpi.c,v 1.1 2004/01/25 11:46:49 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_acpi.c,v 1.1 2004/01/25 11:46:49 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/isa/isavar.h>
    #include <dev/isa/isadmavar.h>
    
    #include <dev/acpi/acpica.h>
    #include <dev/acpi/acpireg.h>
    #include <dev/acpi/acpivar.h>
    
    #include <dev/ic/atppcvar.h>
    #include <dev/isa/atppc_isadma.h>
    
    static int      atppc_acpi_match(struct device *, struct cfdata *, void *);
    static void     atppc_acpi_attach(struct device *, struct device *, void *);
    
    struct atppc_acpi_softc {
            struct atppc_softc sc_atppc;
    
            isa_chipset_tag_t sc_ic;
            int sc_drq;
    };
    
    CFATTACH_DECL(atppc_acpi, sizeof(struct atppc_acpi_softc), atppc_acpi_match,
        atppc_acpi_attach, NULL, NULL);
    
    /*
     * Supported device IDs
     */
    
    static const char * const atppc_acpi_ids[] = {
            "PNP04??",      /* Standard AT printer port */
            NULL
    };
    
    static int atppc_acpi_dma_start(struct atppc_softc *, void *, u_int, 
            u_int8_t);
    static int atppc_acpi_dma_finish(struct atppc_softc *);
    static int atppc_acpi_dma_abort(struct atppc_softc *);
    static int atppc_acpi_dma_malloc(struct device *, caddr_t *, bus_addr_t *, 
            bus_size_t);
    static void atppc_acpi_dma_free(struct device *, caddr_t *, bus_addr_t *, 
            bus_size_t);
    /*
     * atppc_acpi_match: autoconf(9) match routine
     */
    static int
    atppc_acpi_match(struct device *parent, struct cfdata *match, void *aux)
   {
           struct acpi_attach_args *aa = aux;
   
           if (aa->aa_node->ad_type != ACPI_TYPE_DEVICE)
                   return 0;
   
           return acpi_match_hid(aa->aa_node->ad_devinfo, atppc_acpi_ids);
   }
   
   static void
   atppc_acpi_attach(struct device *parent, struct device *self, void *aux)
   {
           struct atppc_softc *sc = (struct atppc_softc *) self;
           struct atppc_acpi_softc *asc = (struct atppc_acpi_softc *)self;
           struct acpi_attach_args *aa = aux;
           struct acpi_resources res;
           struct acpi_io *io;
           struct acpi_irq *irq;
           struct acpi_drq *drq;
           ACPI_STATUS rv;
           int nirq;
   
           sc->sc_dev_ok = ATPPC_NOATTACH;
   
           printf(": AT Parallel Port\n");
   
           /* parse resources */
           rv = acpi_resource_parse(&sc->sc_dev, aa->aa_node, &res,
               &acpi_resource_parse_ops_default);
           if (ACPI_FAILURE(rv))
                   return;
   
           /* find our i/o registers */
           io = acpi_res_io(&res, 0);
           if (io == NULL) {
                   printf("%s: unable to find i/o register resource\n",
                       sc->sc_dev.dv_xname);
                   return;
           }
   
           /* find our IRQ */
           irq = acpi_res_irq(&res, 0);
           if (irq == NULL) {
                   printf("%s: unable to find irq resource\n",
                       sc->sc_dev.dv_xname);
                   return;
           }
           nirq = irq->ar_irq;
   
           /* find our DRQ */
           drq = acpi_res_drq(&res, 0);
           if (drq == NULL) {
                   printf("%s: unable to find drq resource\n",
                       sc->sc_dev.dv_xname);
                   return;
           }
           asc->sc_drq = drq->ar_drq;
   
           /* Attach */
           sc->sc_iot = aa->aa_iot;
           sc->sc_has = 0;
           asc->sc_ic = aa->aa_ic;
   
           sc->sc_dev_ok = ATPPC_ATTACHED;
   
           if (bus_space_map(sc->sc_iot, io->ar_base, io->ar_length, 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->aa_ic, nirq,
               (irq->ar_type == ACPI_EDGE_SENSITIVE) ? IST_EDGE : IST_LEVEL,
               IPL_TTY, atppcintr, sc);
   
           /* 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_acpi_dma_start;
                   sc->sc_dma_finish = atppc_acpi_dma_finish;
                   sc->sc_dma_abort = atppc_acpi_dma_abort;
                   sc->sc_dma_malloc = atppc_acpi_dma_malloc;
                   sc->sc_dma_free = atppc_acpi_dma_free;
           }
   
           sc->sc_has |= ATPPC_HAS_INTR;
   
           /* Run soft configuration attach */
           atppc_sc_attach(sc);
   }
   
   /* Start DMA operation over ISA bus */
   static int 
   atppc_acpi_dma_start(struct atppc_softc *lsc, void *buf, u_int nbytes,
           u_int8_t mode)
   {
           struct atppc_acpi_softc * sc = (struct atppc_acpi_softc *) lsc;
           
           return atppc_isadma_start(sc->sc_ic, sc->sc_drq, buf, nbytes, mode);
   }
   
   /* Stop DMA operation over ISA bus */
   static int 
   atppc_acpi_dma_finish(struct atppc_softc * lsc)
   {
           struct atppc_acpi_softc * sc = (struct atppc_acpi_softc *) lsc;
           
           return atppc_isadma_finish(sc->sc_ic, sc->sc_drq);
   }
   
   /* Abort DMA operation over ISA bus */
   int 
   atppc_acpi_dma_abort(struct atppc_softc * lsc)
   {
           struct atppc_acpi_softc * sc = (struct atppc_acpi_softc *) lsc;
           
           return atppc_isadma_abort(sc->sc_ic, sc->sc_drq);
   }
   
   /* Allocate memory for DMA over ISA bus */ 
   int
   atppc_acpi_dma_malloc(struct device * dev, caddr_t * buf, bus_addr_t * bus_addr,
           bus_size_t size)
   {
           struct atppc_acpi_softc * sc = (struct atppc_acpi_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_acpi_dma_free(struct device * dev, caddr_t * buf, bus_addr_t * bus_addr, 
           bus_size_t size)
   {
           struct atppc_acpi_softc * sc = (struct atppc_acpi_softc *) dev;
   
           return atppc_isadma_free(sc->sc_ic, sc->sc_drq, buf, bus_addr, size);
   }

Cache object: a934394723b19984d0ccd85a0acbb213