461 lines
10 KiB
C
461 lines
10 KiB
C
/* $NetBSD: promio.c,v 1.14 1996/10/13 03:39:48 christos Exp $ */
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/*
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* Copyright (c) 1988 University of Utah.
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* Copyright (c) 1992, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* the Systems Programming Group of the University of Utah Computer
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* Science Department and Ralph Campbell.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* from: Utah Hdr: cons.c 1.1 90/07/09
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*
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* @(#)cons.c 8.2 (Berkeley) 1/11/94
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*/
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#include <sys/param.h>
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#include <sys/device.h>
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#include <dev/cons.h>
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#include <sys/proc.h>
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#include <sys/systm.h>
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#include <sys/buf.h>
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#include <sys/ioctl.h>
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#include <sys/tty.h>
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#include <sys/file.h>
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#include <sys/conf.h>
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#include <pmax/stand/dec_prom.h>
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#include <pmax/pmax/kn01.h>
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#include <pmax/pmax/kn02.h>
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#include <pmax/pmax/kmin.h>
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#include <pmax/pmax/kn03.h>
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#include <pmax/pmax/asic.h>
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#include <pmax/pmax/turbochannel.h>
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#include <pmax/pmax/pmaxtype.h>
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#include <machine/machConst.h>
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#include <machine/pmioctl.h>
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#include <machine/fbio.h>
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#include <machine/fbvar.h>
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#include <pmax/dev/fbreg.h>
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#include <machine/autoconf.h>
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#include <pmax/dev/lk201var.h>
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#include <dev/tc/tcvar.h>
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#include "pm.h"
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#include "cfb.h"
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#include "mfb.h"
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#include "xcfb.h"
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#include "sfb.h"
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#include "dc.h"
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#include "dtop.h"
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#include "scc.h"
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#include "asc.h"
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#include "tc.h"
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#if NDC > 0
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#include <machine/dc7085cons.h>
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#include <pmax/dev/dc_cons.h>
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#include <pmax/dev/dc_ds_cons.h>
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#include <pmax/dev/dc_ioasic_cons.h>
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#endif
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#if NDTOP > 0
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#include <pmax/dev/dtopvar.h>
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#endif
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#if NSCC > 0
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#include <pmax/tc/sccvar.h>
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#endif
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#if NPM > 0
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#include <pmax/dev/pmvar.h>
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#endif
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#if NXCFB > 0
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#include <pmax/dev/xcfbvar.h>
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#endif
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static int romgetc __P ((dev_t));
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static void romputc __P ((dev_t, int));
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static void rompollc __P((dev_t, int));
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extern int pmax_boardtype; /* Mother board type */
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/*
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* Major device numbers for possible console devices. XXX
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*/
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#define DTOPDEV 15
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#define DCDEV 16
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#define SCCDEV 17
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#define RCONSDEV 85
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/*
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* Console I/O is redirected to the appropriate device, either a screen and
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* keyboard, a serial port, or the "virtual" console.
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*/
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extern struct consdev *cn_tab; /* Console I/O table... */
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extern void rcons_vputc __P((dev_t, int)); /* XXX */
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struct consdev cd = {
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(void (*)(struct consdev *))0, /* probe */
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(void (*)(struct consdev *))0, /* init */
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(int (*)(dev_t)) romgetc, /* getc */
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(void (*)(dev_t, int))romputc, /* putc */
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(void (*)(dev_t, int))rompollc, /* pollc */
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makedev (0, 0),
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CN_DEAD,
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};
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/*
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* Should be locals of consinit, but that's split in two until
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* new-style config is finished
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*/
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/*
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* Forward declarations
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*/
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void consinit __P((void));
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void xconsinit __P((void));
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extern struct tc_cpu_desc * cpu_tcdesc __P ((int cputype));
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int kbd;
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int pending_remcons = 0;
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/*
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* Console initialization: called early on from main,
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* before vm init or startup. Do enough configuration
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* to choose and initialize a console.
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*/
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void
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consinit()
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{
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int crt;
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register char *oscon;
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int screen = 0;
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#ifdef RCONS_HACK
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extern void (*v_putc) __P ((dev_t, int));
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#endif
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cn_tab = &cd;
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/*
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* First get the "osconsole" environment variable.
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*/
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oscon = (*callv->_getenv)("osconsole");
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crt = kbd = -1;
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if (oscon && *oscon >= '0' && *oscon <= '9') {
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kbd = *oscon - '0';
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/*cn_tab.cn_pri = CN_DEAD;*/
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screen = 0;
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while (*++oscon) {
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if (*oscon == ',')
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/*cn_tab.cn_pri = CN_INTERNAL;*/
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screen = 1;
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else if (screen &&
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*oscon >= '0' && *oscon <= '9') {
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crt = kbd;
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kbd = *oscon - '0';
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break;
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}
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}
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}
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/*
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* We can't do anything until auto-configuration
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* has run, and that requires kmalloc(), which
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* hasn't been initialized yet. Just keep using
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* whatever the PROM vector gave us.
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*/
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if (pmax_boardtype == DS_PMAX && kbd == 1)
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screen = 1;
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/*
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* The boot program uses PMAX ROM entrypoints so the ROM sets
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* osconsole to '1' like the PMAX.
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*/
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if (pmax_boardtype == DS_3MAX && crt == -1 && kbd == 1) {
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/* Try to use pmax onboard framebuffer */
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screen = 1;
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crt = 0;
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kbd = 7;
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}
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/*
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* First try the keyboard/crt cases then fall through to the
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* remote serial lines.
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*/
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if (screen) {
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switch (pmax_boardtype) {
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case DS_PMAX:
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#if NDC > 0 && NPM > 0
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if (pminit(0, 0, 1)) {
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cd.cn_pri = CN_INTERNAL;
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cd.cn_dev = makedev(DCDEV, DCKBD_PORT);
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cd.cn_getc = LKgetc;
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lk_divert(dcGetc, makedev(DCDEV, DCKBD_PORT));
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cd.cn_putc = rcons_vputc; /*XXX*/
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return;
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}
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#endif /* NDC and NPM */
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goto remcons;
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case DS_MAXINE:
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#if NDTOP > 0
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if (kbd == 3) {
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cd.cn_dev = makedev(DTOPDEV, 0);
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cd.cn_getc = dtopKBDGetc;
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} else
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#endif /* NDTOP */
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goto remcons;
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#if NXCFB > 0
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if (crt == 3 && xcfbinit(NULL, NULL, 0, 0)) {
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cd.cn_pri = CN_INTERNAL;
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cd.cn_putc = rcons_vputc; /*XXX*/
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return;
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}
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#endif /* XCFB */
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break;
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case DS_3MAX:
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#if NDC > 0
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if (kbd == 7) {
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cd.cn_dev = makedev(DCDEV, DCKBD_PORT);
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cd.cn_getc = LKgetc;
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lk_divert(dcGetc, makedev(DCDEV, DCKBD_PORT));
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} else
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#endif /* NDC */
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goto remcons;
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break;
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case DS_3MIN:
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case DS_3MAXPLUS:
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#if NSCC > 0
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if (kbd == 3) {
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/*cd.cn_dev = makedev (RCONSDEV, 0);*/
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cd.cn_dev = makedev(SCCDEV, SCCKBD_PORT);
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lk_divert(sccGetc, makedev(SCCDEV, SCCKBD_PORT));
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cd.cn_getc = LKgetc;
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} else
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#endif /* NSCC */
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goto remcons;
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break;
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default:
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goto remcons;
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};
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/*
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* Check for a suitable turbochannel frame buffer.
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*/
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#if NTC>0
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if (tc_findconsole(crt)) {
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cd.cn_pri = CN_NORMAL;
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#ifdef RCONS_HACK
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/* FIXME */ cd.cn_putc = v_putc;
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cd.cn_dev = makedev (RCONSDEV, 0);
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#endif /* RCONS_HACK */
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cd.cn_putc = rcons_vputc; /*XXX*/
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return;
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} else
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#endif
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printf("No crt console device in slot %d\n", crt);
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}
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remcons:
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/*
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* Configure a serial port as a remote console.
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*/
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switch (pmax_boardtype) {
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case DS_PMAX:
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#if NDC > 0
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if (kbd == 4)
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cd.cn_dev = makedev(DCDEV, DCCOMM_PORT);
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else
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cd.cn_dev = makedev(DCDEV, DCPRINTER_PORT);
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dc_ds_consinit(cd.cn_dev);
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return;
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#endif /* NDC */
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break;
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case DS_3MAX:
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#if NDC > 0
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cd.cn_dev = makedev(DCDEV, DCPRINTER_PORT);
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dc_ioasic_consinit(cd.cn_dev);
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return;
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#endif /* NDC */
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break;
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}
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/*
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* XXX
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* scc serial drivers need to be rewritten to handle init this early.
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* Defer switching to non-PROM driver until after serial device
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* is configured normally.
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*/
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pending_remcons = 1;
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printf("Using PROM serial output until serial drivers initialized\n");
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/* We never changed output; go back to using PROM input */
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cd.cn_dev = makedev (0, 0);
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cd.cn_getc = /*(int (*)(dev_t)) */ romgetc;
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}
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/*
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* Configure a serial port as a remote console.
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* Called by configure() to switch from PROM I/O when the serial
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* device-driver cannot be set up as a serial console until
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* autoconfiguration is done. (i.e., only needed for scc serial driver.)
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*/
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void
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xconsinit()
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{
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if (!pending_remcons)
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return;
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pending_remcons = 0;
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switch (pmax_boardtype) {
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case DS_3MIN:
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case DS_3MAXPLUS:
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#if NSCC > 0
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cd.cn_dev = makedev(SCCDEV, SCCCOMM3_PORT);
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cd.cn_getc = sccGetc;
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cd.cn_putc = sccPutc;
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cd.cn_pri = CN_REMOTE;
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#endif /* NSCC */
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break;
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case DS_MAXINE:
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#if NSCC > 0
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cd.cn_dev = makedev(SCCDEV, SCCCOMM2_PORT);
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cd.cn_getc = sccGetc;
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cd.cn_putc = sccPutc;
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cd.cn_pri = CN_REMOTE;
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#endif /* NSCC */
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break;
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};
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if (cd.cn_dev == NODEV)
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printf("Can't configure console!\n");
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}
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/*
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* Get character from ROM console.
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*/
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static int
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romgetc(dev)
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dev_t dev;
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{
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int s = splhigh ();
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int chr;
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chr = (*callv->_getchar)();
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splx (s);
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return chr;
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}
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/*
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* Print a character on ROM console.
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*/
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static void
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romputc (dev, c)
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dev_t dev;
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register int c;
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{
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int s;
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s = splhigh();
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(*callv->_printf)("%c", c);
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splx(s);
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}
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static void
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rompollc (dev, c)
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dev_t dev;
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register int c;
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{
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return;
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}
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#ifdef notanymore
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/*
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* select() on a possibly-redirected console.
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*/
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extern struct tty *constty; /* virtual console output device */
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extern struct consdev *cn_tab; /* physical console device info */
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extern struct vnode *cn_devvp; /* vnode for underlying device. */
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/*ARGSUSED*/
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int
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pmax_cnselect(dev, rw, p)
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dev_t dev;
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int rw;
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struct proc *p;
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{
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/*
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* Redirect the ioctl, if that's appropriate.
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* I don't want to think of the possible side effects
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* of console redirection here.
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*/
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if (constty != NULL && (cn_tab == NULL || cn_tab->cn_pri != CN_REMOTE))
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dev = constty->t_dev;
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else if (cn_tab == NULL)
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return ENXIO;
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else
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dev = cn_tab->cn_dev;
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#ifdef RCONS
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if (cn_tab -> cn_dev == makedev (85, 0))
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return rconsselect (cn_tab -> cn_dev, rw, p);
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#endif
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return (ttselect(cn_tab->cn_dev, rw, p));
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}
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#endif /* notanymore */
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