Home | History | Annotate | Line # | Download | only in dev
ffb_mainbus.c revision 1.14 
      1 /*	$NetBSD: ffb_mainbus.c,v 1.14 2016/11/04 18:11:15 macallan 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 1.14 2016/11/04 18:11:15 macallan 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 <sys/bus.h>
     46 #include <machine/autoconf.h>
     47 #include <machine/openfirm.h>
     48 
     49 #include <dev/wscons/wsconsio.h>
     50 #include <dev/sun/fbio.h>
     51 #include <dev/sun/fbvar.h>
     52 
     53 #include <sparc64/dev/ffbreg.h>
     54 #include <sparc64/dev/ffbvar.h>
     55 
     56 extern int prom_stdout_node;
     57 
     58 int	ffb_mainbus_match(device_t, cfdata_t, void *);
     59 void	ffb_mainbus_attach(device_t, device_t, void *);
     60 
     61 CFATTACH_DECL_NEW(ffb_mainbus, sizeof(struct ffb_softc),
     62     ffb_mainbus_match, ffb_mainbus_attach, NULL, NULL);
     63 
     64 int
     65 ffb_mainbus_match(device_t parent, cfdata_t match, void *aux)
     66 {
     67 	struct mainbus_attach_args *ma = aux;
     68 
     69 	if (strcmp(ma->ma_name, "SUNW,ffb") == 0 ||
     70 	    strcmp(ma->ma_name, "SUNW,afb") == 0)
     71 		return 1;
     72 	return 0;
     73 }
     74 
     75 void
     76 ffb_mainbus_attach(device_t parent, device_t self, void *aux)
     77 {
     78 	struct ffb_softc *sc = device_private(self);
     79 	struct mainbus_attach_args *ma = aux;
     80 	int i, nregs;
     81 
     82 	sc->sc_dev = self;
     83 	sc->sc_bt = ma->ma_bustag;
     84 
     85 	nregs = min(ma->ma_nreg, FFB_NREGS);
     86 
     87 	if (nregs < FFB_REG_DFB24) {
     88 		printf(": no dfb24 regs found\n");
     89 		goto fail1;
     90 	}
     91 
     92 
     93 	if (bus_space_map(sc->sc_bt, ma->ma_reg[FFB_REG_FBC].ur_paddr,
     94 	    ma->ma_reg[FFB_REG_FBC].ur_len, 0, &sc->sc_fbc_h)) {
     95 		printf(": failed to map fbc\n");
     96 		goto fail1;
     97 	}
     98 
     99 	if (bus_space_map(sc->sc_bt, ma->ma_reg[FFB_REG_DAC].ur_paddr,
    100 	    ma->ma_reg[FFB_REG_DAC].ur_len, 0, &sc->sc_dac_h)) {
    101 		printf(": failed to map dac\n");
    102 		goto unmap_fbc;
    103 	}
    104 
    105 	if (bus_space_map(sc->sc_bt, ma->ma_reg[FFB_REG_SFB32].ur_paddr,
    106 	    ma->ma_reg[FFB_REG_SFB32].ur_len,
    107 	    BUS_SPACE_MAP_LINEAR | BUS_SPACE_MAP_PREFETCHABLE,
    108 	    &sc->sc_sfb32_h)) {
    109 		panic(": failed to map SFB32\n");
    110 		goto unmap_dac;
    111 	}
    112 	sc->sc_sfb32 = bus_space_vaddr(sc->sc_bt, sc->sc_sfb32_h);
    113 
    114 	for (i = 0; i < nregs; i++) {
    115 		sc->sc_addrs[i] = ma->ma_reg[i].ur_paddr;
    116 		sc->sc_sizes[i] = ma->ma_reg[i].ur_len;
    117 	}
    118 	sc->sc_nreg = nregs;
    119 
    120 	sc->sc_console = (prom_stdout_node == ma->ma_node);
    121 	sc->sc_node = ma->ma_node;
    122 
    123 	if (strcmp(ma->ma_name, "SUNW,afb") == 0)
    124 		sc->sc_type = FFB_AFB;
    125 
    126 	ffb_attach(self);
    127 
    128 	return;
    129 
    130 unmap_dac:
    131 	bus_space_unmap(sc->sc_bt, sc->sc_dac_h,
    132 		    ma->ma_reg[FFB_REG_DAC].ur_len);
    133 
    134 unmap_fbc:
    135 	bus_space_unmap(sc->sc_bt, sc->sc_fbc_h,
    136 		    ma->ma_reg[FFB_REG_FBC].ur_len);
    137 fail1:
    138 	return;
    139 }
    140