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      1 /*	$NetBSD: consinit.c,v 1.13 2013/11/06 02:35:26 christos Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1998
      5  *	Matthias Drochner.  All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     17  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     18  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     19  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     21  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     22  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     23  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     24  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     25  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     26  *
     27  */
     28 
     29 #include <sys/cdefs.h>
     30 __KERNEL_RCSID(0, "$NetBSD: consinit.c,v 1.13 2013/11/06 02:35:26 christos Exp $");
     31 
     32 #include <sys/param.h>
     33 #include <sys/systm.h>
     34 #include <sys/device.h>
     35 #include <dev/cons.h>
     36 #include <sys/bus.h>
     37 #include <dev/isa/isavar.h>
     38 
     39 #include "vga.h"
     40 #if (NVGA > 0)
     41 #include <dev/ic/mc6845reg.h>
     42 #include <dev/ic/pcdisplayvar.h>
     43 #include <dev/ic/vgareg.h>
     44 #include <dev/ic/vgavar.h>
     45 #endif
     46 #include "vga_ofbus.h"
     47 #if (NVGA_OFBUS > 0)
     48 #include <shark/ofw/vga_ofbusvar.h>
     49 #endif
     50 
     51 #include "pckbc.h"
     52 #if (NPCKBC > 0)
     53 #include <dev/isa/isareg.h>
     54 #include <dev/ic/i8042reg.h>
     55 #include <dev/ic/pckbcvar.h>
     56 #include <dev/pckbport/pckbportvar.h>
     57 #endif
     58 #include "pckbd.h" /* for pckbc_machdep_cnattach */
     59 
     60 #include "com.h"
     61 #if (NCOM > 0)
     62 #include <sys/termios.h>
     63 #include <dev/ic/comreg.h>
     64 #include <dev/ic/comvar.h>
     65 #endif
     66 
     67 #include "ofcons.h"
     68 #if (NOFCONS > 0)
     69 cons_decl(ofcons_)
     70 static struct consdev ofcons = cons_init(ofcons_);
     71 #endif
     72 
     73 #include "igsfb_ofbus.h"
     74 #include "chipsfb_ofbus.h"
     75 #include <shark/ofw/igsfb_ofbusvar.h>
     76 
     77 #if (NCHIPSFB_OFBUS > 0)
     78 extern int chipsfb_ofbus_cnattach(bus_space_tag_t, bus_space_tag_t);
     79 #endif
     80 
     81 #if (NCOM > 0)
     82 #ifndef CONADDR
     83 #define CONADDR 0x3f8
     84 #endif
     85 #ifndef CONSPEED
     86 #define CONSPEED TTYDEF_SPEED
     87 #endif
     88 #ifndef CONMODE
     89 #define CONMODE ((TTYDEF_CFLAG & ~(CSIZE | CSTOPB | PARENB)) | CS8) /* 8N1 */
     90 #endif
     91 int comcnmode = CONMODE;
     92 #endif /* NCOM */
     93 #ifdef COMCONSOLE
     94 int comconsole = 1;
     95 #else
     96 int comconsole = 0;
     97 #endif
     98 
     99 /*
    100  * consinit:
    101  * initialize the system console.
    102  */
    103 void
    104 consinit(void)
    105 {
    106 	static int initted;
    107 
    108 	if (initted)
    109 		return;
    110 	initted = 1;
    111 
    112 #if (NVGA > 0)
    113 	/* The font built into the VGA ROM is broken: all the characters
    114 	 * above the 127th do not match the standard set expected by the
    115 	 * console.  E.g. boxes drawn using the ACS are incorrect. */
    116 	vga_no_builtinfont = 1;
    117 #endif
    118 
    119 	if (!comconsole) {
    120 #if (NVGA > 0) || (NCHIPSFB_OFBUS > 0) || (NIGSFB_OFBUS > 0)
    121 #if (NIGSFB_OFBUS > 0)
    122 		if (!igsfb_ofbus_cnattach(&isa_io_bs_tag, &isa_mem_bs_tag)) {
    123 #if (NPCKBC > 0)
    124 			pckbc_cnattach(&isa_io_bs_tag, IO_KBD, KBCMDP,
    125 			    PCKBC_KBD_SLOT, 0);
    126 #endif /* NPCKBC */
    127 			return;
    128 		}
    129 #endif /* NIGSFB_OFBUS */
    130 #if (NCHIPSFB_OFBUS > 0)
    131 		if (!chipsfb_ofbus_cnattach(&isa_io_bs_tag, &isa_mem_bs_tag)) {
    132 #if (NPCKBC > 0)
    133 			pckbc_cnattach(&isa_io_bs_tag, IO_KBD, KBCMDP,
    134 			    PCKBC_KBD_SLOT, 0);
    135 #endif /* NPCKBC */
    136 			return;
    137 		}
    138 #endif /* NCHIPSFB_OFBUS */
    139 #if (NVGA_OFBUS > 0)
    140 		if (!vga_ofbus_cnattach(&isa_io_bs_tag, &isa_mem_bs_tag)) {
    141 #if (NPCKBC > 0)
    142 			pckbc_cnattach(&isa_io_bs_tag, IO_KBD, KBCMDP,
    143 			    PCKBC_KBD_SLOT, 0);
    144 #endif /* NPCKBC */
    145 			return;
    146 		}
    147 #endif /* NVGA_OFBUS */
    148 
    149 #else /* NVGA */
    150 #if (NOFCONS > 0)
    151 		struct consdev *cp = &ofcons;
    152 		ofcons_cnprobe(cp);
    153 		if (cp->cn_pri == CN_INTERNAL) {
    154 			ofcons_cninit(cp);
    155 			cn_tab = cp;
    156 			return;
    157 		}
    158 #endif /* NOFCONS */
    159 #endif /* NVGA */
    160 	}
    161 #if (NCOM > 0)
    162 	if (comcnattach(&isa_io_bs_tag, CONADDR, CONSPEED, COM_FREQ,
    163 	    COM_TYPE_NORMAL, comcnmode))
    164 		panic("can't init serial console");
    165 #endif
    166 }
    167