/
console.c
1289 lines (1073 loc) · 25.7 KB
/
console.c
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/* $NetBSD: console.c,v 1.14.10.4 2006/05/13 10:26:26 elad Exp $ */
/*
* Copyright (c) 1994-1995 Melvyn Tang-Richardson
* Copyright (c) 1994-1995 RiscBSD kernel team
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the RiscBSD kernel team
* 4. The name of the company nor the name of the author may be used to
* endorse or promote products derived from this software without specific
* prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE RISCBSD TEAM ``AS IS'' AND ANY EXPRESS
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*
* RiscBSD kernel project
*
* console.c
*
* Console functions
*
* Created : 17/09/94
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: console.c,v 1.14.10.4 2006/05/13 10:26:26 elad Exp $");
#include <sys/types.h>
#include <sys/param.h>
#include <sys/conf.h>
#include <sys/proc.h>
#include <sys/device.h>
#include <sys/time.h>
#include <sys/systm.h>
#include <sys/errno.h>
#include <sys/tty.h>
#include <sys/ioctl.h>
#include <sys/uio.h>
#include <sys/malloc.h>
#include <sys/msgbuf.h>
#include <sys/user.h>
#include <sys/syslog.h>
#include <sys/kernel.h>
#include <sys/kauth.h>
#include <dev/cons.h>
#include <arm/iomd/vidc.h>
#include <arm/iomd/console/console.h>
#include <machine/vconsole.h>
#include <arm/arm32/katelib.h>
#include <machine/bootconfig.h>
#include "vt.h"
#define CONSOLE_VERSION "[V203E]"
/*
* Externals
*/
extern videomemory_t videomemory;
extern struct tty *constty;
extern int debug_flags;
#define consmap_col(x) (x & 0x3)
#define CONSMAP_BOLD 8
#define CONSMAP_ITALIC 16
/*
* Local variables (to this file)
*/
int locked=0; /* Nut - is this really safe ? */
struct tty *physcon_tty[NVT];
struct vconsole vconsole_master_store;
struct vconsole *vconsole_master = &vconsole_master_store;
struct vconsole *vconsole_current;
struct vconsole *vconsole_head;
struct vconsole *vconsole_default;
extern struct vconsole *debug_vc; /* rename this to vconsole_debug */
static char undefined_string[] = "UNDEFINED";
int lastconsole;
static int printing=0;
static int want_switch=-1;
/*
* Prototypes
*/
int physcon_switch(u_int);
void physconstart(struct tty *);
void physconinit(struct consdev *);
int physconparam(struct tty *, struct termios *);
int physcon_switchup(void);
int physcon_switchdown(void);
char physcongetchar(void);
int physconkbd(int);
void rpcconsolecnprobe(struct consdev *);
void rpcconsolecninit(struct consdev *);
char rpcconsolecngetc(dev_t);
void rpcconsolecnputc(dev_t, char);
void rpcconsolecnpollc(dev_t, int);
struct vconsole *find_vc(dev_t);
void vconsole_addcharmap(struct vconsole *);
static struct vconsole *vconsole_spawn(dev_t, struct vconsole *);
void console_flush(void);
/*
* Exported variables
*/
#define BLANKINIT (10*60*70)
int vconsole_pending=0;
int vconsole_blankinit=BLANKINIT;
int vconsole_blankcounter=BLANKINIT;
/*
* Device switch
*/
dev_type_open(physconopen);
dev_type_close(physconclose);
dev_type_read(physconread);
dev_type_write(physconwrite);
dev_type_ioctl(physconioctl);
dev_type_tty(physcontty);
dev_type_poll(physconpoll);
dev_type_mmap(physconmmap);
const struct cdevsw physcon_cdevsw = {
physconopen, physconclose, physconread, physconwrite, physconioctl,
nostop, physcontty, physconpoll, physconmmap, ttykqfilter, D_TTY
};
/*
* Now list all my render engines and terminal emulators
*/
extern struct render_engine vidcrender;
extern struct terminal_emulator vt220;
/*
* These find functions should move the console it finds to the top of
* the list to achieve a caching type of operation. A doubly
* linked list would be faster methinks.
*/
struct tty *
find_tp(dev)
dev_t dev;
{
struct vconsole *vc;
struct vconsole *last=0;
int unit = minor (dev);
int s;
s = spltty();
for (vc=vconsole_head; vc != NULL; vc=vc->next) {
if (vc->number==unit) {
if (vc != vconsole_head) {
last->next = vc->next;
vc->next = vconsole_head;
vconsole_head = vc;
}
(void)splx(s);
return vc->tp;
}
last = vc;
}
(void)splx(s);
return NULL;
}
struct vconsole *
find_vc(dev)
dev_t dev;
{
struct vconsole *vc;
struct vconsole *last=NULL;
int unit = minor (dev);
int s;
s = spltty();
for (vc=vconsole_head; vc!=NULL; vc=vc->next) {
if (vc->number==unit) {
if (vc!=vconsole_head) {
last->next = vc->next;
vc->next = vconsole_head;
vconsole_head = vc;
}
(void)splx(s);
return vc;
}
last=vc;
}
(void)splx(s);
return NULL;
}
struct tty *console_tty = NULL;
/*
* Place a graphics driver under virtual console switching control.
*/
struct vconsole *
vconsole_spawn_re(dev, vc)
dev_t dev;
struct vconsole *vc;
{
struct vconsole *new;
register int num = minor(dev);
MALLOC(new, struct vconsole *, sizeof(struct vconsole),
M_DEVBUF,M_NOWAIT );
/* printf("spawn_re:new=%08x\n", new);*/
memset((char *)new, 0, sizeof(struct vconsole));
*new = *vc;
new->number = num;
new->next = vconsole_head;
new->tp = vc->tp; /* Implied */
new->data=0;
new->t_scrolledback=0;
new->r_scrolledback=0;
new->r_data=0;
new->flags=LOSSY;
new->vtty = 0;
vconsole_head = new;
new->R_INIT ( new );
new->SPAWN ( new );
new->data = 0;
/*new->charmap = 0;*/
new->flags=LOSSY;
new->proc = curproc;
new->vtty = 0;
return new;
}
static struct vconsole *
vconsole_spawn(dev, vc)
dev_t dev;
struct vconsole *vc;
{
struct vconsole *new;
register int num = minor(dev);
if ( find_vc ( dev ) != 0 )
return 0;
MALLOC(new, struct vconsole *, sizeof(struct vconsole),
M_DEVBUF, M_NOWAIT );
/* printf("spawn:new=%08x\n", new);*/
memset((char *)new, 0, sizeof(struct vconsole));
*new = *vc;
new->number = num;
new->next = vconsole_head;
new->tp=NULL;
new->opened=0;
new->data=0;
new->t_scrolledback=0;
new->r_scrolledback=0;
new->r_data=0;
new->vtty = 1;
vconsole_head = new;
new->R_INIT ( new );
new->FLASH ( new, 1 );
new->CURSOR_FLASH ( new, 1 );
new->SPAWN ( new );
new->vtty = 1;
new->charmap = (int *)malloc(sizeof(int)*((new->xchars)*(new->ychars)),
M_DEVBUF, M_NOWAIT);
/* printf("spawn:charmap=%08x\n", new->charmap);*/
if (new->charmap==0)
return 0;
{
int counter=0;
for ( counter=0; counter<((new->xchars)*(new->ychars)); counter++ )
(new->charmap)[counter]=' ';
}
new->TERM_INIT ( new );
new->proc = curproc;
return new;
}
void
vconsole_addcharmap(vc)
struct vconsole *vc;
{
int counter=0;
vc->charmap = (int *)malloc(sizeof(int)*((vc->xchars)*(vc->ychars)),
M_DEVBUF, M_NOWAIT);
/* printf("vc=%08x charmap=%08x\n", vc, vc->charmap);*/
for ( counter=0; counter<((vc->xchars)*(vc->ychars)); counter++ )
(vc->charmap)[counter]=' ';
}
int
physconopen(dev, flag, mode, l)
dev_t dev;
int flag;
int mode;
struct lwp *l;
{
struct vconsole *new;
struct vconsole *vc;
int unit = minor(dev);
int found=0;
int majorhack=0;
int ret;
/*
* To allow the raw consoles a permanat hook for ioctls
* Spawning another virtual console will actuall configure it
*/
if ( unit >= NVT ) {
if ( find_vc(dev)==0 )
return ENXIO;
}
/*
if (unit >= rpc_cd.cd_ndevs || !rpc_cd.cd_devs[unit])
return ENXIO;
*/
/* If this virtual console is the real virtual console and hasn't got */
/* a charmap then to allocate it one. We can be sure addcharmap works */
/* here since this is the open routine. This is incase the console */
/* was initialised before the system was brought up */
if ((unit==0)&&(vconsole_master->charmap==0)) {
if (vconsole_master==vconsole_current)
majorhack=1;
vconsole_addcharmap ( vconsole_master );
vconsole_master->flags &= ~LOSSY;
}
/* Check to see if this console has already been spawned */
for ( vc = vconsole_head; vc!=NULL; vc=vc->next ) {
if ( vc->number == unit ) {
found=1;
break;
}
}
/* Sanity check. If we have no default console, set it to the master one */
if ( vconsole_default==0 )
vconsole_default = vconsole_master;
/* Ensure we have a vconsole structure. Allocate one if we dont already */
if (found==0)
new = vconsole_spawn ( dev, vconsole_default );
else
new = vc;
new->proc = l->l_proc;
/* Initialise the terminal subsystem for this device */
#define TP (new->tp)
if (TP == NULL)
TP = ttymalloc();
physcon_tty[unit] = TP;
TP->t_oproc = physconstart;
TP->t_param = physconparam;
TP->t_dev = dev;
if ((TP->t_state & TS_ISOPEN) == 0) {
ttychars(TP);
TP->t_iflag = TTYDEF_IFLAG;
TP->t_oflag = TTYDEF_OFLAG;
TP->t_cflag = TTYDEF_CFLAG;
TP->t_lflag = TTYDEF_LFLAG;
TP->t_ispeed = TP->t_ospeed = TTYDEF_SPEED;
physconparam(TP, &TP->t_termios);
ttsetwater(TP);
} else if (TP->t_state&TS_XCLUDE &&
kauth_authorize_generic(l->l_proc->p_cred, KAUTH_GENERIC_ISSUSER, &l->l_proc->p_acflag) != 0)
return EBUSY;
TP->t_state |= TS_CARR_ON;
new->opened=1;
TP->t_winsize.ws_col = new->xchars;
TP->t_winsize.ws_row = new->ychars;
ret = (*TP->t_linesw->l_open)(dev, TP);
if ( majorhack==1 ) {
struct vconsole *vc_store;
int counter;
int end;
int lines;
int xs;
end = msgbufp->msg_bufx-1;
if (end>=MSGBUFSIZE) end-=MSGBUFSIZE;
/*
* Try some cute things. Count the number of lines in the msgbuf
* then scroll the real screen up, just to fit the msgbuf on the
* screen, then sink all output, and spew the msgbuf to the
* new consoles charmap!
*/
lines = 0; xs=0;
for (counter=0;counter<end;counter++) {
xs++;
if (*((msgbufp->msg_bufc)+counter)==0x0a) {
if (xs>vc->xchars) lines++;
lines++;
xs=0;
}
}
if ( lines < vc->ychars ) {
counter=vc->ycur;
while ( (counter--) > lines )
new->PUTSTRING ( "\x0a", 1, new );
}
new->SLEEP(new);
vc_store = vconsole_current;
vconsole_current = 0; /* !!! */
/* HAHA, cant do this */
/* new->CLS ( new ); */
new->PUTSTRING ( "\x0c", 1, new );
/*
* Hmmm, I could really pass the whole damn thing to putstring
* since it doesn't have zeros, but I need to do the crlf
* conversion
*/
xs=0;
if ( end < 0 )
panic ( "msgbuf trashed reboot and try again" );
for (counter=0;counter<end;counter++) {
if (*((msgbufp->msg_bufc)+counter)==0x0a) {
new->PUTSTRING ( "\x0d", 1, new );
xs=0;
}
if ( (xs++)<new->xchars )
new->PUTSTRING ((msgbufp->msg_bufc)+counter, 1, new );
}
vconsole_master->ycur = lines;
vconsole_current = vc_store;
new->WAKE(new);
vconsole_current->xcur = 0;
printf ( "\x0a" );
}
return(ret);
}
/*
* int physconclose(dev_t dev, int flag, int mode, struct lwp *l)
*
* Close the physical console
*/
int
physconclose(dev, flag, mode, l)
dev_t dev;
int flag;
int mode;
struct lwp *l;
{
register struct tty *tp;
tp = find_tp ( dev );
if (tp == NULL) {
printf("physconclose: tp=0 dev=%04x\n", dev);
return(ENXIO);
}
(*tp->t_linesw->l_close)(tp, flag);
ttyclose(tp);
return(0);
}
int
physconread(dev, uio, flag)
dev_t dev;
struct uio *uio;
int flag;
{
register struct tty *tp = find_tp ( dev );
if (tp == NULL) {
printf("physconread: tp=0 dev=%04x\n", dev);
return(ENXIO);
}
return ((*tp->t_linesw->l_read)(tp, uio, flag));
}
int
physconwrite(dev, uio, flag)
dev_t dev;
struct uio *uio;
int flag;
{
register struct tty *tp;
tp = find_tp(dev);
if (tp == NULL) {
printf("physconwrite: tp=0 dev=%04x\n", dev);
return(ENXIO);
}
return((*tp->t_linesw->l_write)(tp, uio, flag));
}
int
physconpoll(dev, events, l)
dev_t dev;
int events;
struct lwp *l;
{
register struct tty *tp;
tp = find_tp(dev);
if (tp == NULL) {
printf("physconpoll: tp=0 dev=%04x\n", dev);
return(ENXIO);
}
return ((*tp->t_linesw->l_poll)(tp, events, l));
}
struct tty *
physcontty(dev)
dev_t dev;
{
return(find_tp(dev));
}
int ioctlconsolebug;
int
physconioctl(dev, cmd, data, flag, l)
dev_t dev;
u_long cmd;
caddr_t data;
int flag;
struct lwp *l;
{
struct vconsole vconsole_new;
struct tty *tp=(struct tty *)0xDEADDEAD ;
int error;
int s;
struct vconsole *vc = find_vc(dev);
ioctlconsolebug = cmd;
tp = find_tp(dev);
if ((vc==0)||(tp==0))
return ENXIO;
switch ( cmd ) {
case CONSOLE_SWITCHUP:
physcon_switchup ();
return 0;
case CONSOLE_SWITCHDOWN:
physcon_switchdown ();
return 0;
case CONSOLE_SWITCHTO:
if (!physcon_switch ( *(int *)data ))
return 0;
else
return EINVAL;
case CONSOLE_SWITCHPREV:
physcon_switch ( lastconsole );
return 0;
case CONSOLE_CREATE:
{
int maj;
maj = cdevsw_lookup_major(&physcon_cdevsw);
if ( vconsole_spawn ( makedev ( maj, *(int *)data ),
vconsole_default ) == 0 )
return ENOMEM;
else
return 0;
break;
}
case CONSOLE_RENDERTYPE:
strncpy ( (char *)data, vc->T_NAME, 20 );
return 0;
case CONSOLE_TERMTYPE:
strncpy ( (char *)data, vc->T_NAME, 20 );
return 0;
case CONSOLE_LOCK:
s = spltty();
locked++;
(void)splx(s);
return 0;
case CONSOLE_UNLOCK:
s = spltty();
locked--;
if ( locked<0 )
locked=0;
(void)splx(s);
return 0;
case CONSOLE_SPAWN_VIDC:
/*
vconsole_new = *vconsole_default;
*/
vconsole_new = *vc;
vconsole_new.render_engine = &vidcrender;
if ( vconsole_spawn_re (
makedev ( cdevsw_lookup_major(&physcon_cdevsw),
*(int *)data ),
&vconsole_new ) == 0 )
return ENOMEM;
else
return 0;
case CONSOLE_GETVC:
{
/* struct vconsole *vc_p;
vc_p = find_vc(dev);
*(int *)data = vc_p->number;*/
*(int *)data = vconsole_current->number;
return 0;
}
case CONSOLE_CURSORFLASHRATE:
vc->CURSORFLASHRATE ( vc, *(int *)data );
return 0;
case CONSOLE_BLANKTIME:
{
int blanktime = (*(int *)data);
struct vidc_mode *vm = &((struct vidc_info *)vc->r_data)->mode;
/*
* +ve set blank time
* 0 force blank immediately (no time change)
* -ve disable blank time
*/
if (vm->frame_rate)
blanktime *= vm->frame_rate;
else
blanktime *= 70;
if (blanktime == 0) {
if (vc == vconsole_current)
vconsole_current->BLANK(vconsole_current, BLANK_OFF);
} else {
if (vc == vconsole_current)
vconsole_blankinit = blanktime;
vc->blanktime = blanktime;
if (blanktime < 0)
vconsole_current->BLANK(vconsole_current, BLANK_NONE);
}
return 0;
}
case CONSOLE_DEBUGPRINT:
{
struct vconsole *vc_p;
vc_p = find_vc(makedev(cdevsw_lookup_major(&physcon_cdevsw),
*(int*)data));
if (vc_p==0) return EINVAL;
printf ( "DEBUGPRINT for console %d\n", *(int*)data );
printf ( "flags %08x vtty %01x\n", vc_p->flags, vc_p->vtty );
printf ( "TTY INFO - winsize (%d, %d)\n",
vc_p->tp->t_winsize.ws_col,
vc_p->tp->t_winsize.ws_row);
vc_p->R_DEBUGPRINT ( vc_p );
vc_p->T_DEBUGPRINT ( vc_p );
return 0;
}
default:
error = vc->IOCTL ( vc, dev, cmd, data, flag, l );
if (error != EPASSTHROUGH)
return error;
error = (*tp->t_linesw->l_ioctl)(tp, cmd, data, flag, l);
if (error != EPASSTHROUGH)
return error;
error = ttioctl(tp, cmd, data, flag, l);
if (error != EPASSTHROUGH)
return error;
}
return(EPASSTHROUGH);
}
paddr_t
physconmmap(dev, offset, nprot)
dev_t dev;
off_t offset;
int nprot;
{
struct vconsole *vc = find_vc(dev);
paddr_t physaddr;
if (minor(dev) < 64) {
log(LOG_WARNING, "You should no longer use ttyv to mmap a frame buffer\n");
log(LOG_WARNING, "For vidc use /dev/vidcrender0\n");
}
physaddr = vc->MMAP(vc, offset, nprot);
return(physaddr);
}
/*
* Perform output on specified tty stream
*/
void
physconstart(tp)
struct tty *tp;
{
int s, len;
struct clist *cl;
struct vconsole *vc;
u_char buf[128];
s = spltty();
vc = find_vc ( tp->t_dev );
/* Are we ready to perform output */
if (tp->t_state & (TS_TIMEOUT | TS_BUSY | TS_TTSTOP)) {
(void)splx(s);
return;
}
tp->t_state |= TS_BUSY;
/* Fill our buffer with the data to print */
cl = &tp->t_outq;
if ( vc->r_scrolledback ) vc->R_SCROLLBACKEND ( vc );
if ( vc->t_scrolledback ) vc->T_SCROLLBACKEND ( vc );
(void)splx(s);
/* Apparently we do this out of spl since it _IS_ fairly expensive */
/* and it stops the serial ports overflowing */
while ( (len = q_to_b(cl, buf, 128)) ) {
if ( vc!=NULL )
vc->PUTSTRING(buf, len, vc);
}
s = spltty ();
tp->t_state &= ~TS_BUSY;
if (cl->c_cc) {
tp->t_state |= TS_TIMEOUT;
callout_reset(&tp->t_rstrt_ch, 1, ttrstrt, tp);
}
if (cl->c_cc <= tp->t_lowat) {
if (tp->t_state & TS_ASLEEP) {
tp->t_state &= ~TS_ASLEEP;
wakeup(cl);
}
selwakeup(&tp->t_wsel);
}
if ( want_switch != -1 ) {
physcon_switch ( want_switch );
want_switch=-1;
}
(void)splx(s);
}
int
physconparam(tp, t)
struct tty *tp;
struct termios *t;
{
tp->t_ispeed = t->c_ispeed;
tp->t_ospeed = t->c_ospeed;
tp->t_cflag = t->c_cflag;
return(0);
}
int
physconkbd(key)
int key;
{
const char *string;
register struct tty *tp;
int s;
s = spltty();
tp = vconsole_current->tp;
if (tp == NULL) {
(void)splx(s);
return(1);
}
if ((tp->t_state & TS_ISOPEN) == 0) {
(void)splx(s);
return(1);
}
if (key < 0x100)
(*tp->t_linesw->l_rint)(key, tp);
else {
switch (key) {
case 0x100:
string = "\x1b[A";
break;
case 0x101:
string = "\x1b[B";
break;
case 0x102:
string = "\x1b[D";
break;
case 0x103:
string = "\x1b[C";
break;
case 0x104:
string = "\x1b[6~";
break;
case 0x105:
string = "\x1b[5~";
break;
case 0x108:
string = "\x1b[2~";
break;
case 0x109:
string = "\x7f";
break;
default:
string = "";
break;
}
while (*string != 0) {
(*tp->t_linesw->l_rint)(*string, tp);
++string;
}
}
(void)splx(s);
return(0);
}
static int physconinit_called = 0;
void
physconinit(cp)
struct consdev *cp;
{
int *test;
int counter;
/*
* Incase we're called more than once. All routines below here
* undergo once time initialisation
*/
if (physconinit_called)
return;
physconinit_called=1;
locked=0;
/*
* Create the master console
*/
vconsole_master->next = NULL;
vconsole_master->number = 0;
vconsole_master->opened = 1;
vconsole_master->tp = NULL;
/*
* Right, here I can choose some render routines
*/
vconsole_master->render_engine = &vidcrender;
vconsole_master->terminal_emulator = &vt220;
/*
* We will very soon loose the master console, and number 0 will
* become the current console so as not to waste a struct vconsole
*/
vconsole_current = vconsole_head = vconsole_master;
vconsole_master->data = NULL;
vconsole_master->vtty = 1;
/*
* Perform initial checking
*/
if (vconsole_master->terminal_emulator->name == 0)
vconsole_master->terminal_emulator->name = undefined_string;
if (vconsole_master->render_engine->name == 0)
vconsole_master->render_engine->name = undefined_string;
/*
* Right, I have to assume the init and print procedures are ok
* or there's nothing else that can be done
*/
vconsole_master->R_INIT(vconsole_master);
vconsole_master->SPAWN(vconsole_master);
vconsole_master->TERM_INIT(vconsole_master);
vconsole_master->flags = LOSSY;
vconsole_master->blanktime = BLANKINIT;
/*
* Now I can do some productive verification
*/
/* Ensure there are no zeros in the termulation and render_engine */
test = (int *) vconsole_master->render_engine;
for (counter=0; counter<(sizeof(struct render_engine)/4)-1; counter++)
if (test[counter]==0)
panic ( "Render engine %s is missins a routine",
vconsole_master->render_engine->name );
test = (int *) vconsole_master->terminal_emulator;
for (counter=0; counter<(sizeof(struct terminal_emulator)/4)-1; counter++)
if (test[counter]==0)
panic ( "Render engine %s is missing a routine",
vconsole_master->terminal_emulator->name );
vconsole_master->PUTSTRING("\x0c", 1, vconsole_master);
}
#if CHUQ
/*
* void physconputstring(char *string, int length)
*
* Render a string on the physical console
*/
void
physconputstring(string, length)
char *string;
int length;
{
vconsole_current->PUTSTRING(string, length, vconsole_current);
}
#endif
/*
* void physcongetchar(void)
*
* Get a character from the physical console
*/