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pccons_jazzio.c revision 1.7 
      1 /* $NetBSD: pccons_jazzio.c,v 1.7 2005/11/15 12:12:21 tsutsui 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 1.7 2005/11/15 12:12:21 tsutsui 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 #include <machine/wired_map.h>
     42 
     43 #include <mips/pte.h>
     44 
     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(struct device *, struct cfdata *, void *);
     53 void	pccons_jazzio_attach(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(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(void)
     73 {
     74 
     75 	/* nothing to do */
     76 }
     77 
     78 int	pccons_jazzio_init_tag(const char *, bus_space_tag_t*,bus_space_tag_t*);
     79 
     80 int
     81 pccons_jazzio_init_tag(const char *name, bus_space_tag_t *iotp,
     82     bus_space_tag_t *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_wired_enter_page(
    101 		    PICA_V_LOCAL_VIDEO_CTRL,
    102 		    PICA_P_LOCAL_VIDEO_CTRL,
    103 		    PICA_S_LOCAL_VIDEO_CTRL / 2);
    104 		arc_wired_enter_page(
    105 		    PICA_V_LOCAL_VIDEO_CTRL + PICA_S_LOCAL_VIDEO_CTRL / 2,
    106 		    PICA_P_LOCAL_VIDEO_CTRL + PICA_S_LOCAL_VIDEO_CTRL / 2,
    107 		    PICA_S_LOCAL_VIDEO_CTRL / 2);
    108 
    109 		arc_wired_enter_page(PICA_V_LOCAL_VIDEO,
    110 		    PICA_P_LOCAL_VIDEO,
    111 		    PICA_S_LOCAL_VIDEO / 2);
    112 		arc_wired_enter_page(
    113 		    PICA_V_LOCAL_VIDEO + PICA_S_LOCAL_VIDEO / 2,
    114 		    PICA_P_LOCAL_VIDEO + PICA_S_LOCAL_VIDEO / 2,
    115 		    PICA_S_LOCAL_VIDEO / 2);
    116 #if 0
    117 		arc_wired_enter_page(PICA_V_EXTND_VIDEO_CTRL,
    118 		    PICA_P_EXTND_VIDEO_CTRL,
    119 		    PICA_S_EXTND_VIDEO_CTRL / 2);
    120 		arc_wired_enter_page(
    121 		    PICA_V_EXTND_VIDEO_CTRL + PICA_S_EXTND_VIDEO_CTRL / 2,
    122 		    PICA_P_EXTND_VIDEO_CTRL + PICA_S_EXTND_VIDEO_CTRL / 2,
    123 		    PICA_S_EXTND_VIDEO_CTRL / 2);
    124 #endif
    125 	}
    126 	*iotp = &vga_io;
    127 	*memtp = &vga_mem;
    128 	return 0;
    129 }
    130 
    131 int
    132 pccons_jazzio_match(struct device *parent, struct cfdata *match, void *aux)
    133 {
    134 	struct jazzio_attach_args *ja = aux;
    135 	bus_space_tag_t crt_iot, crt_memt;
    136 
    137 	if (pccons_jazzio_init_tag(ja->ja_name, &crt_iot, &crt_memt))
    138 		return 0;
    139 
    140 	if (!pccons_common_match(crt_iot, crt_memt, ja->ja_bust,
    141 	    &pccons_jazzio_conf))
    142 		return 0;
    143 
    144 	return 1;
    145 }
    146 
    147 void
    148 pccons_jazzio_attach(struct device *parent, struct device *self, void *aux)
    149 {
    150 	struct pc_softc *sc = (struct pc_softc *)self;
    151 	struct jazzio_attach_args *ja = aux;
    152 	bus_space_tag_t crt_iot, crt_memt;
    153 
    154 	pccons_jazzio_init_tag(ja->ja_name, &crt_iot, &crt_memt);
    155 	jazzio_intr_establish(PCKBD_INTR, pcintr, self);
    156 	pccons_common_attach(sc, crt_iot, crt_memt, ja->ja_bust,
    157 	    &pccons_jazzio_conf);
    158 }
    159 
    160 int
    161 pccons_jazzio_cnattach(char *name, bus_space_tag_t kbd_iot)
    162 {
    163 	bus_space_tag_t crt_iot, crt_memt;
    164 
    165 	if (pccons_jazzio_init_tag(name, &crt_iot, &crt_memt))
    166 		return ENXIO;
    167 	pccons_common_cnattach(crt_iot, crt_memt, kbd_iot,
    168 	    &pccons_jazzio_conf);
    169 	return 0;
    170 }
    171