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Synced with sys/dev/syscons/syscons.c rev 1.331.

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This commit is contained in:
KATO Takenori 2000-01-13 12:24:43 +00:00
parent 62285547ec
commit 1a5f564f56
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=55904
1 changed files with 28 additions and 27 deletions
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55
sys/pc98/pc98/syscons.c
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@ -125,15 +125,7 @@ static u_char default_kanji = UJIS;
#define VIRTUAL_TTY(sc, x) (SC_DEV((sc), (x))->si_tty)
#define debugger FALSE
#ifdef __i386__
#ifdef DDB
extern int in_Debugger;
#undef debugger
#define debugger in_Debugger
#endif /* DDB */
#endif /* __i386__ */
static int debugger;
/* prototypes */
static int scvidprobe(int unit, int flags, int cons);
@ -198,13 +190,15 @@ static cn_init_t sccninit;
static cn_getc_t sccngetc;
static cn_checkc_t sccncheckc;
static cn_putc_t sccnputc;
static cn_dbctl_t sccndbctl;
static cn_term_t sccnterm;
#if __alpha__
void sccnattach(void);
#endif
CONS_DRIVER(sc, sccnprobe, sccninit, sccnterm, sccngetc, sccncheckc, sccnputc);
CONS_DRIVER(sc, sccnprobe, sccninit, sccnterm, sccngetc, sccncheckc, sccnputc,
sccndbctl);
static d_open_t scopen;
static d_close_t scclose;
@ -1468,6 +1462,28 @@ sccncheckc(dev_t dev)
return sccngetch(SCGETC_NONBLOCK);
}
static void
sccndbctl(dev_t dev, int on)
{
/* try to switch to the kernel console screen */
if (on && debugger == 0) {
/*
* TRY to make sure the screen saver is stopped,
* and the screen is updated before switching to
* the vty0.
*/
scrn_timer(NULL);
if (!cold
&& sc_console->sc->cur_scp->smode.mode == VT_AUTO
&& sc_console->smode.mode == VT_AUTO)
switch_scr(sc_console->sc, sc_console->index);
}
if (on)
++debugger;
else
--debugger;
}
static int
sccngetch(int flags)
{
@ -1547,7 +1563,7 @@ sccnupdate(scr_stat *scp)
if (scp->sc->font_loading_in_progress || scp->sc->videoio_in_progress)
return;
if (debugger || panicstr || shutdown_in_progress) {
if (debugger > 0 || panicstr || shutdown_in_progress) {
sc_touch_scrn_saver();
} else if (scp != scp->sc->cur_scp) {
return;
@ -1624,7 +1640,7 @@ scrn_timer(void *arg)
/* should we stop the screen saver? */
getmicrouptime(&tv);
if (debugger || panicstr || shutdown_in_progress)
if (debugger > 0 || panicstr || shutdown_in_progress)
sc_touch_scrn_saver();
if (run_scrn_saver) {
if (tv.tv_sec > sc->scrn_time_stamp + scrn_blank_time)
@ -4007,21 +4023,6 @@ scgetc(sc_softc_t *sc, u_int flags)
case DBG:
#ifndef SC_DISABLE_DDBKEY
#ifdef DDB
if (debugger)
break;
/* try to switch to the kernel console screen */
if (sc_console) {
/*
* TRY to make sure the screen saver is stopped,
* and the screen is updated before switching to
* the vty0.
*/
scrn_timer(NULL);
if (!cold
&& sc_console->sc->cur_scp->smode.mode == VT_AUTO
&& sc_console->smode.mode == VT_AUTO)
switch_scr(sc_console->sc, sc_console->index);
}
Debugger("manual escape to debugger");
#else
printf("No debugger in kernel\n");