FreeBSD/Linux Kernel Cross Reference
sys/dev/sbus/cgthree_sbus.c

     /*      $NetBSD: cgthree_sbus.c,v 1.14 2004/03/17 17:04:58 pk Exp $ */
     
     /*-
      * Copyright (c) 1998 The NetBSD Foundation, Inc.
      * All rights reserved.
      *
      * This code is derived from software contributed to The NetBSD Foundation
      * by Paul Kranenburg.
      *
     * 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.
     */
    
    /*
     * Copyright (c) 1992, 1993
     *      The Regents of the University of California.  All rights reserved.
     *
     * This software was developed by the Computer Systems Engineering group
     * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
     * contributed to Berkeley.
     *
     * All advertising materials mentioning features or use of this software
     * must display the following acknowledgement:
     *      This product includes software developed by the University of
     *      California, Lawrence Berkeley Laboratory.
     *
     * 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. Neither the name of the University 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 REGENTS 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 REGENTS 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.
     *
     *      @(#)cgthree.c   8.2 (Berkeley) 10/30/93
     */
    
    /*
     * color display (cgthree) driver.
     *
     * Does not handle interrupts, even though they can occur.
     *
     * XXX should defer colormap updates to vertical retrace interrupts
     */
    
    #include <sys/cdefs.h>
    __KERNEL_RCSID(0, "$NetBSD: cgthree_sbus.c,v 1.14 2004/03/17 17:04:58 pk Exp $");
    
    #include <sys/param.h>
    #include <sys/systm.h>
    #include <sys/buf.h>
    #include <sys/device.h>
    #include <sys/ioctl.h>
    #include <sys/malloc.h>
    #include <sys/mman.h>
    #include <sys/tty.h>
    #include <sys/conf.h>
    
   #include <machine/bus.h>
   #include <machine/autoconf.h>
   
   #include <dev/sun/fbio.h>
   #include <dev/sun/fbvar.h>
   
   #include <dev/sun/btreg.h>
   #include <dev/sun/btvar.h>
   #include <dev/sun/cgthreereg.h>
   #include <dev/sun/cgthreevar.h>
   
   #include <dev/sbus/sbusvar.h>
   
   /* Allocate an `sbusdev' in addition to the cgthree softc */
   struct cgthree_sbus_softc {
           struct cgthree_softc bss_softc;
           struct sbusdev bss_sd;
   };
   
   
   /* autoconfiguration driver */
   static int      cgthreematch_sbus(struct device *, struct cfdata *, void *);
   static void     cgthreeattach_sbus(struct device *, struct device *, void *);
   
   CFATTACH_DECL(cgthree_sbus, sizeof(struct cgthree_softc),
       cgthreematch_sbus, cgthreeattach_sbus, NULL, NULL);
   
   /*
    * Match a cgthree.
    */
   int
   cgthreematch_sbus(parent, cf, aux)
           struct device *parent;
           struct cfdata *cf;
           void *aux;
   {
           struct sbus_attach_args *sa = aux;
   
           return (strcmp(cf->cf_name, sa->sa_name) == 0);
   }
   
   /*
    * Attach a display.  We need to notice if it is the console, too.
    */
   void
   cgthreeattach_sbus(parent, self, args)
           struct device *parent, *self;
           void *args;
   {
           struct cgthree_softc *sc = (struct cgthree_softc *)self;
           struct sbusdev *sd = &((struct cgthree_sbus_softc *)self)->bss_sd;
           struct sbus_attach_args *sa = args;
           struct fbdevice *fb = &sc->sc_fb;
           int node = sa->sa_node;
           int isconsole;
           char *name;
           bus_space_handle_t bh;
   
           /* Remember cookies for cgthree_mmap() */
           sc->sc_bustag = sa->sa_bustag;
           sc->sc_paddr = sbus_bus_addr(sa->sa_bustag, sa->sa_slot, sa->sa_offset);
   
           fb->fb_device = &sc->sc_dev;
           fb->fb_flags = sc->sc_dev.dv_cfdata->cf_flags & FB_USERMASK;
           fb->fb_type.fb_type = FBTYPE_SUN3COLOR;
   
           fb->fb_type.fb_depth = 8;
           fb_setsize_obp(fb, fb->fb_type.fb_depth, 1152, 900, node);
   
           /*
            * When the ROM has mapped in a cgthree display, the address
            * maps only the video RAM, so in any case we have to map the
            * registers ourselves.  We only need the video RAM if we are
            * going to print characters via rconsole.
            */
           if (sbus_bus_map(sa->sa_bustag,
                            sa->sa_slot,
                            sa->sa_offset + CG3REG_REG,
                            sizeof(struct fbcontrol),
                            BUS_SPACE_MAP_LINEAR, &bh) != 0) {
                   printf("%s: cannot map control registers\n", self->dv_xname);
                   return;
           }
           sc->sc_fbc = (struct fbcontrol *)bus_space_vaddr(sa->sa_bustag, bh);
   
           isconsole = fb_is_console(node);
           name = prom_getpropstring(node, "model");
           if (name == NULL)
                   name = "cgthree";
   
           if (sa->sa_npromvaddrs != 0)
                   fb->fb_pixels = (caddr_t)(u_long)sa->sa_promvaddrs[0];
           if (isconsole && fb->fb_pixels == NULL) {
                   int ramsize = fb->fb_type.fb_height * fb->fb_linebytes;
                   if (sbus_bus_map(sa->sa_bustag,
                                    sa->sa_slot,
                                    sa->sa_offset + CG3REG_MEM,
                                    ramsize,
                                    BUS_SPACE_MAP_LINEAR, &bh) != 0) {
                           printf("%s: cannot map pixels\n", self->dv_xname);
                           return;
                   }
                   fb->fb_pixels = (char *)bus_space_vaddr(sa->sa_bustag, bh);
           }
   
           sbus_establish(sd, &sc->sc_dev);
           cgthreeattach(sc, name, isconsole);
   }

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