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pccons_jazzio.c revision 1.4 
      1 /* $NetBSD: pccons_jazzio.c,v 1.4 2003/07/15 00:04:50 lukem Exp $ */
      2 /* NetBSD: vga_isa.c,v 1.4 2000/08/14 20:14:51 thorpej Exp  */
      3 
      4 /*
      5  * Copyright (c) 1995, 1996 Carnegie-Mellon University.
      6  * All rights reserved.
      7  *
      8  * Author: Chris G. Demetriou
      9  *
     10  * Permission to use, copy, modify and distribute this software and
     11  * its documentation is hereby granted, provided that both the copyright
     12  * notice and this permission notice appear in all copies of the
     13  * software, derivative works or modified versions, and any portions
     14  * thereof, and that both notices appear in supporting documentation.
     15  *
     16  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
     17  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
     18  * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
     19  *
     20  * Carnegie Mellon requests users of this software to return to
     21  *
     22  *  Software Distribution Coordinator  or  Software.Distribution (at) CS.CMU.EDU
     23  *  School of Computer Science
     24  *  Carnegie Mellon University
     25  *  Pittsburgh PA 15213-3890
     26  *
     27  * any improvements or extensions that they make and grant Carnegie the
     28  * rights to redistribute these changes.
     29  */
     30 
     31 #include <sys/cdefs.h>
     32 __KERNEL_RCSID(0, "$NetBSD: pccons_jazzio.c,v 1.4 2003/07/15 00:04:50 lukem Exp $");
     33 
     34 #include <sys/param.h>
     35 #include <sys/systm.h>
     36 #include <sys/device.h>
     37 #include <uvm/uvm_extern.h>
     38 
     39 #include <machine/autoconf.h>
     40 #include <machine/bus.h>
     41 
     42 #include <mips/pte.h>
     43 
     44 #include <arc/arc/wired_map.h>
     45 #include <arc/dev/pcconsvar.h>
     46 #include <arc/jazz/jazziovar.h>
     47 #include <arc/jazz/pica.h>
     48 #include <arc/jazz/pccons_jazziovar.h>
     49 
     50 #define PCKBD_INTR 6	/* XXX - should be obtained from firmware */
     51 
     52 int	pccons_jazzio_match __P((struct device *, struct cfdata *, void *));
     53 void	pccons_jazzio_attach __P((struct device *, struct device *, void *));
     54 
     55 CFATTACH_DECL(pc_jazzio, sizeof(struct pc_softc),
     56     pccons_jazzio_match, pccons_jazzio_attach, NULL, NULL);
     57 
     58 /*
     59  * chipset-dependent pccons configuration
     60  */
     61 
     62 void pccons_jazzio_init __P((void));
     63 
     64 struct pccons_config pccons_jazzio_conf = {
     65 	0x3b4, 0xb0000,	/* mono: iobase, memaddr */
     66 	0x3d4, 0xb8000,	/* cga:  iobase, memaddr */
     67 	PICA_SYS_KBD + 0x61, PICA_SYS_KBD + 0x60, /* kbdc: cmdport, dataport */
     68 	pccons_jazzio_init
     69 };
     70 
     71 void
     72 pccons_jazzio_init()
     73 {
     74 	/* nothing to do */
     75 }
     76 
     77 int	pccons_jazzio_init_tag __P((char*, bus_space_tag_t*,bus_space_tag_t*));
     78 
     79 int
     80 pccons_jazzio_init_tag(name, iotp, memtp)
     81 	char *name;
     82 	bus_space_tag_t *iotp, *memtp;
     83 {
     84 	static int initialized = 0;
     85 	static struct arc_bus_space vga_io, vga_mem;
     86 
     87 	if (strcmp(name, "ALI_S3") != 0)
     88 		return(ENXIO);
     89 
     90 	if (!initialized) {
     91 		initialized = 1;
     92 
     93 		arc_bus_space_init(&vga_io, "vga_jazzio_io",
     94 		    PICA_P_LOCAL_VIDEO_CTRL, PICA_V_LOCAL_VIDEO_CTRL,
     95 		    0, PICA_S_LOCAL_VIDEO_CTRL);
     96 		arc_bus_space_init(&vga_mem, "vga_jazzio_mem",
     97 		    PICA_P_LOCAL_VIDEO, PICA_V_LOCAL_VIDEO,
     98 		    0, PICA_S_LOCAL_VIDEO);
     99 
    100 		arc_enter_wired(PICA_V_LOCAL_VIDEO_CTRL,
    101 		    PICA_P_LOCAL_VIDEO_CTRL,
    102 		    PICA_P_LOCAL_VIDEO_CTRL + PICA_S_LOCAL_VIDEO_CTRL/2,
    103 		    MIPS3_PG_SIZE_1M);
    104 		arc_enter_wired(PICA_V_LOCAL_VIDEO,
    105 		    PICA_P_LOCAL_VIDEO,
    106 		    PICA_P_LOCAL_VIDEO + PICA_S_LOCAL_VIDEO/2,
    107 		    MIPS3_PG_SIZE_4M);
    108 #if 0
    109 		arc_enter_wired(PICA_V_EXTND_VIDEO_CTRL,
    110 		    PICA_P_EXTND_VIDEO_CTRL,
    111 		    PICA_P_EXTND_VIDEO_CTRL + PICA_S_EXTND_VIDEO_CTRL/2,
    112 		    MIPS3_PG_SIZE_1M);
    113 #endif
    114 	}
    115 	*iotp = &vga_io;
    116 	*memtp = &vga_mem;
    117 	return (0);
    118 }
    119 
    120 int
    121 pccons_jazzio_match(parent, match, aux)
    122 	struct device *parent;
    123 	struct cfdata *match;
    124 	void *aux;
    125 {
    126 	struct jazzio_attach_args *ja = aux;
    127 	bus_space_tag_t crt_iot, crt_memt;
    128 
    129 	if (pccons_jazzio_init_tag(ja->ja_name, &crt_iot, &crt_memt))
    130 		return (0);
    131 
    132 	if (!pccons_common_match(crt_iot, crt_memt, ja->ja_bust,
    133 	    &pccons_jazzio_conf))
    134 		return (0);
    135 
    136 	return (1);
    137 }
    138 
    139 void
    140 pccons_jazzio_attach(parent, self, aux)
    141 	struct device *parent, *self;
    142 	void *aux;
    143 {
    144 	struct pc_softc *sc = (struct pc_softc *)self;
    145 	struct jazzio_attach_args *ja = aux;
    146 	bus_space_tag_t crt_iot, crt_memt;
    147 
    148 	pccons_jazzio_init_tag(ja->ja_name, &crt_iot, &crt_memt);
    149 	jazzio_intr_establish(PCKBD_INTR, pcintr, self);
    150 	pccons_common_attach(sc, crt_iot, crt_memt, ja->ja_bust,
    151 	    &pccons_jazzio_conf);
    152 }
    153 
    154 int
    155 pccons_jazzio_cnattach(name, kbd_iot)
    156 	char *name;
    157 	bus_space_tag_t kbd_iot;
    158 {
    159 	bus_space_tag_t crt_iot, crt_memt;
    160 
    161 	if (pccons_jazzio_init_tag(name, &crt_iot, &crt_memt))
    162 		return (ENXIO);
    163 	pccons_common_cnattach(crt_iot, crt_memt, kbd_iot,
    164 	    &pccons_jazzio_conf);
    165 	return (0);
    166 }
    167 
    168