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ffb_mainbus.c revision 1.2 
      1 /*	$NetBSD: ffb_mainbus.c,v 1.2 2003/07/15 03:36:05 lukem Exp $	*/
      2 /*	$OpenBSD: creator_mainbus.c,v 1.4 2002/07/26 16:39:04 jason Exp $	*/
      3 
      4 /*
      5  * Copyright (c) 2002 Jason L. Wright (jason (at) thought.net),
      6  *  Federico G. Schwindt (fgsch (at) openbsd.org)
      7  * All rights reserved.
      8  *
      9  * Redistribution and use in source and binary forms, with or without
     10  * modification, are permitted provided that the following conditions
     11  * are met:
     12  * 1. Redistributions of source code must retain the above copyright
     13  *    notice, this list of conditions and the following disclaimer.
     14  * 2. Redistributions in binary form must reproduce the above copyright
     15  *    notice, this list of conditions and the following disclaimer in the
     16  *    documentation and/or other materials provided with the distribution.
     17  * 3. All advertising materials mentioning features or use of this software
     18  *    must display the following acknowledgement:
     19  *	This product includes software developed by Jason L. Wright
     20  * 4. The name of the author may not be used to endorse or promote products
     21  *    derived from this software without specific prior written permission.
     22  *
     23  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     24  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     25  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
     26  * DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
     27  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     28  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
     29  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
     31  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
     32  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     33  * POSSIBILITY OF SUCH DAMAGE.
     34  */
     35 
     36 #include <sys/cdefs.h>
     37 __KERNEL_RCSID(0, "$NetBSD: ffb_mainbus.c,v 1.2 2003/07/15 03:36:05 lukem Exp $");
     38 
     39 #include <sys/types.h>
     40 #include <sys/param.h>
     41 #include <sys/systm.h>
     42 #include <sys/kernel.h>
     43 #include <sys/device.h>
     44 
     45 #include <machine/bus.h>
     46 #include <machine/autoconf.h>
     47 #include <machine/openfirm.h>
     48 
     49 #include <dev/wscons/wsconsio.h>
     50 #include <dev/wscons/wsdisplayvar.h>
     51 #include <dev/wscons/wscons_raster.h>
     52 #include <dev/rasops/rasops.h>
     53 
     54 #include <sparc64/dev/ffbreg.h>
     55 #include <sparc64/dev/ffbvar.h>
     56 
     57 int	ffb_mainbus_match(struct device *, struct cfdata *, void *);
     58 void	ffb_mainbus_attach(struct device *, struct device *, void *);
     59 
     60 CFATTACH_DECL(ffb_mainbus, sizeof(struct ffb_softc),
     61 	      ffb_mainbus_match, ffb_mainbus_attach, NULL, NULL);
     62 
     63 int
     64 ffb_mainbus_match(parent, match, aux)
     65 	struct device *parent;
     66 	struct cfdata *match;
     67 	void *aux;
     68 {
     69 	struct mainbus_attach_args *ma = aux;
     70 
     71 	if (strcmp(ma->ma_name, "SUNW,ffb") == 0 ||
     72 	    strcmp(ma->ma_name, "SUNW,afb") == 0)
     73 		return (1);
     74 	return (0);
     75 }
     76 
     77 void
     78 ffb_mainbus_attach(parent, self, aux)
     79 	struct device *parent, *self;
     80 	void *aux;
     81 {
     82 	struct ffb_softc *sc = (struct ffb_softc *)self;
     83 	struct mainbus_attach_args *ma = aux;
     84 	extern int fbnode;
     85 	int i, nregs;
     86 
     87 	sc->sc_bt = ma->ma_bustag;
     88 
     89 	nregs = min(ma->ma_nreg, FFB_NREGS);
     90 
     91 	if (nregs < FFB_REG_DFB24) {
     92 		printf(": no dfb24 regs found\n");
     93 		goto fail1;
     94 	}
     95 
     96 	if (bus_space_map(sc->sc_bt, ma->ma_reg[FFB_REG_DFB24].ur_paddr,
     97 	    ma->ma_reg[FFB_REG_DFB24].ur_len, BUS_SPACE_MAP_LINEAR,
     98 	    &sc->sc_pixel_h)) {
     99 		printf(": failed to map dfb24\n");
    100 		goto fail1;
    101 	}
    102 
    103 	if (bus_space_map(sc->sc_bt, ma->ma_reg[FFB_REG_FBC].ur_paddr,
    104 	    ma->ma_reg[FFB_REG_FBC].ur_len, 0, &sc->sc_fbc_h)) {
    105 		printf(": failed to map fbc\n");
    106 		goto fail;
    107 	}
    108 
    109 	for (i = 0; i < nregs; i++) {
    110 		sc->sc_addrs[i] = ma->ma_reg[i].ur_paddr;
    111 		sc->sc_sizes[i] = ma->ma_reg[i].ur_len;
    112 	}
    113 	sc->sc_nreg = nregs;
    114 
    115 	sc->sc_console = (fbnode == ma->ma_node);
    116 	sc->sc_node = ma->ma_node;
    117 
    118 	if (strcmp(ma->ma_name, "SUNW,afb") == 0)
    119 		sc->sc_type = FFB_AFB;
    120 
    121 	ffb_attach(sc);
    122 
    123 	return;
    124 
    125 fail:
    126 #if 0
    127 	if (sc->sc_fbc_h != 0)
    128 		bus_space_unmap(sc->sc_bt, sc->sc_fbc_h,
    129 		    ma->ma_reg[FFB_REG_FBC].ur_len);
    130 #endif
    131 /*	if (sc->sc_pixel_h != 0) */
    132 		bus_space_unmap(sc->sc_bt, sc->sc_pixel_h,
    133 		    ma->ma_reg[FFB_REG_DFB24].ur_len);
    134 fail1:
    135 	return;
    136 }
    137