672c05d49c
future: rename ttyopen() -> tty_open() and ttyclose() -> tty_close(). We need the ttyopen() and ttyclose() for the new generic cdevsw functions for tty devices in order to have consistent naming.
833 lines
19 KiB
C
833 lines
19 KiB
C
/*
|
|
* Copyright (c) 1999, 2000 Hellmuth Michaelis
|
|
*
|
|
* Copyright (c) 1992, 1995 Hellmuth Michaelis and Joerg Wunsch.
|
|
*
|
|
* Copyright (c) 1992, 1993 Brian Dunford-Shore and Scott Turner.
|
|
*
|
|
* Copyright (c) 1993 Charles Hannum.
|
|
*
|
|
* All rights reserved.
|
|
*
|
|
* Parts of this code regarding the NetBSD interface were written
|
|
* by Charles Hannum.
|
|
*
|
|
* This code is derived from software contributed to Berkeley by
|
|
* William Jolitz and Don Ahn.
|
|
*
|
|
* 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
|
|
* Hellmuth Michaelis, Brian Dunford-Shore, Joerg Wunsch, Scott Turner
|
|
* and Charles Hannum.
|
|
* 4. The name authors may not be used to endorse or promote products
|
|
* derived from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``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 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.
|
|
*/
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
*
|
|
* pcvt_drv.c VT220 Driver Main Module / OS - Interface
|
|
* ---------------------------------------------------------
|
|
*
|
|
* Last Edit-Date: [Sat Jul 15 15:06:06 2000]
|
|
*
|
|
* $FreeBSD$
|
|
*
|
|
*---------------------------------------------------------------------------*/
|
|
|
|
#define MAIN
|
|
#include <i386/isa/pcvt/pcvt_hdr.h>
|
|
#undef MAIN
|
|
|
|
|
|
#include <sys/resource.h>
|
|
#include <sys/bus.h>
|
|
#include <sys/rman.h>
|
|
|
|
#include <machine/resource.h>
|
|
#include <machine/bus.h>
|
|
|
|
#include <isa/isareg.h>
|
|
#include <isa/isavar.h>
|
|
|
|
static kbd_callback_func_t pcvt_event;
|
|
static int pcvt_kbd_wptr = 0;
|
|
static u_char pcvt_timeout_scheduled = 0;
|
|
|
|
static void vgapelinit(void);
|
|
static void detect_kbd(void *arg);
|
|
static void pcvt_start(register struct tty *tp);
|
|
static int pcvt_param(struct tty *tp, struct termios *t);
|
|
|
|
static cn_probe_t pcvt_cn_probe;
|
|
static cn_init_t pcvt_cn_init;
|
|
static cn_term_t pcvt_cn_term;
|
|
static cn_getc_t pcvt_cn_getc;
|
|
static cn_checkc_t pcvt_cn_checkc;
|
|
static cn_putc_t pcvt_cn_putc;
|
|
|
|
CONS_DRIVER(vt, pcvt_cn_probe, pcvt_cn_init, pcvt_cn_term, pcvt_cn_getc,
|
|
pcvt_cn_checkc, pcvt_cn_putc, NULL);
|
|
|
|
static d_open_t pcvt_open;
|
|
static d_close_t pcvt_close;
|
|
static d_ioctl_t pcvt_ioctl;
|
|
static d_mmap_t pcvt_mmap;
|
|
|
|
static struct cdevsw vt_cdevsw = {
|
|
.d_version = D_VERSION,
|
|
.d_open = pcvt_open,
|
|
.d_close = pcvt_close,
|
|
.d_ioctl = pcvt_ioctl,
|
|
.d_mmap = pcvt_mmap,
|
|
.d_name = "vt",
|
|
.d_flags = D_TTY | D_NEEDGIANT,
|
|
};
|
|
|
|
static int pcvt_probe(device_t dev);
|
|
static int pcvt_attach(device_t dev);
|
|
static void pcvt_identify (driver_t *driver, device_t parent);
|
|
|
|
static device_method_t pcvt_methods[] = {
|
|
DEVMETHOD(device_identify, pcvt_identify),
|
|
DEVMETHOD(device_probe, pcvt_probe),
|
|
DEVMETHOD(device_attach, pcvt_attach),
|
|
DEVMETHOD(bus_print_child, bus_generic_print_child),
|
|
{ 0, 0 }
|
|
};
|
|
|
|
static driver_t pcvt_driver = {
|
|
"vt",
|
|
pcvt_methods,
|
|
0
|
|
};
|
|
|
|
static devclass_t pcvt_devclass;
|
|
|
|
DRIVER_MODULE(pcvt, isa, pcvt_driver, pcvt_devclass, 0, 0);
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* driver identify
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
pcvt_identify (driver_t *driver, device_t parent)
|
|
{
|
|
BUS_ADD_CHILD(parent, ISA_ORDER_SPECULATIVE, "vt", 0);
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* driver probe
|
|
*---------------------------------------------------------------------------*/
|
|
static int
|
|
pcvt_probe(device_t dev)
|
|
{
|
|
int i;
|
|
device_t bus;
|
|
|
|
int unit = device_get_unit(dev);
|
|
|
|
/* No pnp support */
|
|
if(isa_get_vendorid(dev))
|
|
return ENXIO;
|
|
|
|
if(unit != 0)
|
|
return ENXIO;
|
|
|
|
device_set_desc(dev, "pcvt VT220 console driver");
|
|
|
|
bus = device_get_parent(dev);
|
|
bus_set_resource(dev, SYS_RES_IOPORT, 0, 0x3b0, 0x30);
|
|
bus_set_resource(dev, SYS_RES_MEMORY, 0, (u_long) Crtat, 0x8000);
|
|
|
|
if (kbd == NULL)
|
|
{
|
|
reset_keyboard = 0;
|
|
kbd_configure(KB_CONF_PROBE_ONLY);
|
|
i = kbd_allocate("*", -1, (void *)&kbd, pcvt_event, (void *)&vs[unit]);
|
|
if ((i < 0) || ((kbd = kbd_get_keyboard(i)) == NULL))
|
|
return 0;
|
|
}
|
|
reset_keyboard = 1; /* it's now safe to do kbd reset */
|
|
|
|
kbd_code_init();
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* driver attach
|
|
*---------------------------------------------------------------------------*/
|
|
static int
|
|
pcvt_attach(device_t dev)
|
|
{
|
|
int i;
|
|
struct resource *port;
|
|
struct resource *mem;
|
|
|
|
int unit = device_get_unit(dev);
|
|
|
|
if(unit != 0)
|
|
return ENXIO;
|
|
|
|
i = 0;
|
|
port = bus_alloc_resource(dev, SYS_RES_IOPORT, &i, 0, ~0, 0,
|
|
RF_ACTIVE | RF_SHAREABLE);
|
|
|
|
i = 0;
|
|
mem = bus_alloc_resource(dev, SYS_RES_MEMORY, &i, 0, ~0, 0,
|
|
RF_ACTIVE | RF_SHAREABLE);
|
|
|
|
vt_coldmalloc(); /* allocate memory for screens */
|
|
|
|
if (kbd == NULL)
|
|
timeout(detect_kbd, (void *)&vs[unit], hz*2);
|
|
|
|
printf("vt%d: ", unit);
|
|
|
|
switch(adaptor_type)
|
|
{
|
|
case MDA_ADAPTOR:
|
|
printf("MDA");
|
|
break;
|
|
|
|
case CGA_ADAPTOR:
|
|
printf("CGA");
|
|
break;
|
|
|
|
case EGA_ADAPTOR:
|
|
printf("EGA");
|
|
break;
|
|
|
|
case VGA_ADAPTOR:
|
|
printf("%s VGA, ", (char *)vga_string(vga_type));
|
|
if(can_do_132col)
|
|
printf("80/132 columns");
|
|
else
|
|
printf("80 columns");
|
|
vgapelinit();
|
|
break;
|
|
|
|
default:
|
|
printf("unknown");
|
|
break;
|
|
}
|
|
|
|
if(color == 0)
|
|
printf(", mono");
|
|
else
|
|
printf(", color");
|
|
|
|
printf(", %d screens, ", totalscreens);
|
|
|
|
switch(keyboard_type)
|
|
{
|
|
case KB_AT:
|
|
printf("AT-");
|
|
break;
|
|
|
|
case KB_MFII:
|
|
printf("MF2-");
|
|
break;
|
|
|
|
default:
|
|
printf("unknown ");
|
|
break;
|
|
}
|
|
|
|
printf("keyboard\n");
|
|
|
|
for(i = 0; i < totalscreens; i++)
|
|
{
|
|
pcvt_tty[i] = ttymalloc(pcvt_tty[i]);
|
|
vs[i].vs_tty = pcvt_tty[i];
|
|
make_dev(&vt_cdevsw, i, UID_ROOT, GID_WHEEL, 0600, "ttyv%r", i);
|
|
}
|
|
|
|
async_update(UPDATE_START); /* start asynchronous updates */
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* driver open
|
|
*---------------------------------------------------------------------------*/
|
|
static int
|
|
pcvt_open(struct cdev *dev, int flag, int mode, struct thread *td)
|
|
{
|
|
register struct tty *tp;
|
|
register struct video_state *vsx;
|
|
int s, retval;
|
|
int winsz = 0;
|
|
int i = minor(dev);
|
|
|
|
vsx = &vs[i];
|
|
|
|
if(i >= PCVT_NSCREENS)
|
|
return ENXIO;
|
|
|
|
tp = pcvt_tty[i];
|
|
|
|
dev->si_tty = tp;
|
|
|
|
vsx->openf++;
|
|
|
|
tp->t_oproc = pcvt_start;
|
|
tp->t_param = pcvt_param;
|
|
tp->t_stop = nottystop;
|
|
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;
|
|
pcvt_param(tp, &tp->t_termios);
|
|
ttyld_modem(tp, 1); /* fake connection */
|
|
winsz = 1; /* set winsize later */
|
|
}
|
|
else if (tp->t_state & TS_XCLUDE && suser(td))
|
|
{
|
|
return (EBUSY);
|
|
}
|
|
|
|
retval = (ttyld_open(tp, dev));
|
|
|
|
if(winsz == 1)
|
|
{
|
|
/*
|
|
* The line discipline has clobbered t_winsize if TS_ISOPEN
|
|
* was clear. (NetBSD PR #400 from Bill Sommerfeld)
|
|
* We have to do this after calling the open routine, because
|
|
* it does some other things in other/older *BSD releases -hm
|
|
*/
|
|
|
|
s = spltty();
|
|
|
|
tp->t_winsize.ws_col = vsx->maxcol;
|
|
tp->t_winsize.ws_row = vsx->screen_rows;
|
|
tp->t_winsize.ws_xpixel = (vsx->maxcol == 80)? 720: 1056;
|
|
tp->t_winsize.ws_ypixel = 400;
|
|
|
|
splx(s);
|
|
}
|
|
return(retval);
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* driver close
|
|
*---------------------------------------------------------------------------*/
|
|
static int
|
|
pcvt_close(struct cdev *dev, int flag, int mode, struct thread *td)
|
|
{
|
|
register struct tty *tp;
|
|
register struct video_state *vsx;
|
|
int i = minor(dev);
|
|
|
|
vsx = &vs[i];
|
|
|
|
if(i >= PCVT_NSCREENS)
|
|
return ENXIO;
|
|
|
|
tp = pcvt_tty[i];
|
|
|
|
ttyld_close(tp, flag);
|
|
|
|
tty_close(tp);
|
|
|
|
vsx->openf = 0;
|
|
|
|
#ifdef XSERVER
|
|
reset_usl_modes(vsx);
|
|
#endif /* XSERVER */
|
|
|
|
return(0);
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* driver ioctl
|
|
*---------------------------------------------------------------------------*/
|
|
static int
|
|
pcvt_ioctl(struct cdev *dev, u_long cmd, caddr_t data, int flag, struct thread *td)
|
|
{
|
|
register int error;
|
|
register struct tty *tp;
|
|
int i = minor(dev);
|
|
|
|
if(i >= PCVT_NSCREENS)
|
|
return ENXIO;
|
|
|
|
tp = pcvt_tty[i];
|
|
|
|
/* note that some ioctl's are global, e.g. KBSTPMAT: There is
|
|
* only one keyboard and different repeat rates for instance between
|
|
* sessions are a suspicious wish. If you really need this make the
|
|
* appropriate variables arrays
|
|
*/
|
|
|
|
#ifdef XSERVER
|
|
if((error = usl_vt_ioctl(dev, cmd, data, flag, td)) >= 0)
|
|
return error;
|
|
#endif /* XSERVER */
|
|
|
|
if((error = kbdioctl(dev,cmd,data,flag)) >= 0)
|
|
return error;
|
|
|
|
if((error = vgaioctl(dev,cmd,data,flag)) >= 0)
|
|
return error;
|
|
|
|
return (ttyioctl(dev, cmd, data, flag, td));
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* driver mmap
|
|
*---------------------------------------------------------------------------*/
|
|
static int
|
|
pcvt_mmap(struct cdev *dev, vm_offset_t offset, vm_paddr_t *paddr, int nprot)
|
|
{
|
|
if (offset > 0x20000 - PAGE_SIZE)
|
|
return -1;
|
|
*paddr = 0xa0000 + offset;
|
|
return 0;
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* timeout handler
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
pcvt_timeout(void *arg)
|
|
{
|
|
u_char *cp;
|
|
struct tty *tp;
|
|
|
|
#if PCVT_SLOW_INTERRUPT
|
|
int s;
|
|
#endif
|
|
|
|
pcvt_timeout_scheduled = 0;
|
|
|
|
#if PCVT_SCREENSAVER
|
|
pcvt_scrnsv_reset();
|
|
#endif /* PCVT_SCREENSAVER */
|
|
|
|
tp = pcvt_tty[current_video_screen];
|
|
while (pcvt_kbd_count)
|
|
{
|
|
if (((cp = sgetc(1)) != 0) &&
|
|
(vs[current_video_screen].openf))
|
|
{
|
|
|
|
#if PCVT_NULLCHARS
|
|
if(*cp == '\0')
|
|
{
|
|
/* pass a NULL character */
|
|
ttyld_rint(tp, '\0');
|
|
}
|
|
/* XXX */ else
|
|
#endif /* PCVT_NULLCHARS */
|
|
|
|
while (*cp)
|
|
ttyld_rint(tp, *cp++ & 0xff);
|
|
}
|
|
|
|
PCVT_DISABLE_INTR ();
|
|
|
|
if (!pcvt_kbd_count)
|
|
pcvt_timeout_scheduled = 0;
|
|
|
|
PCVT_ENABLE_INTR ();
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* check for keyboard
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
detect_kbd(void *arg)
|
|
{
|
|
int unit = (int)arg;
|
|
int i;
|
|
|
|
if (kbd != NULL)
|
|
return;
|
|
i = kbd_allocate("*", -1, (void *)&kbd, pcvt_event, (void *)unit);
|
|
if (i >= 0)
|
|
kbd = kbd_get_keyboard(i);
|
|
if (kbd != NULL)
|
|
{
|
|
reset_keyboard = 1; /* ok to reset the keyboard */
|
|
kbd_code_init();
|
|
return;
|
|
}
|
|
reset_keyboard = 0;
|
|
timeout(detect_kbd, (void *)unit, hz*2);
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* keyboard event handler
|
|
*---------------------------------------------------------------------------*/
|
|
static int
|
|
pcvt_event(keyboard_t *thiskbd, int event, void *arg)
|
|
{
|
|
int unit = (int)arg;
|
|
|
|
if (thiskbd != kbd)
|
|
return EINVAL; /* shouldn't happen */
|
|
|
|
switch (event) {
|
|
case KBDIO_KEYINPUT:
|
|
pcvt_rint(unit);
|
|
return 0;
|
|
case KBDIO_UNLOADING:
|
|
reset_keyboard = 0;
|
|
kbd = NULL;
|
|
kbd_release(thiskbd, (void *)&kbd);
|
|
timeout(detect_kbd, (void *)unit, hz*4);
|
|
return 0;
|
|
default:
|
|
return EINVAL;
|
|
}
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* (keyboard) interrupt handler
|
|
*---------------------------------------------------------------------------*/
|
|
void
|
|
pcvt_rint(int unit)
|
|
{
|
|
u_char dt;
|
|
u_char ret = -1;
|
|
int c;
|
|
|
|
# if PCVT_SLOW_INTERRUPT
|
|
int s;
|
|
# endif
|
|
|
|
#if PCVT_SCREENSAVER
|
|
pcvt_scrnsv_reset();
|
|
#endif /* PCVT_SCREENSAVER */
|
|
|
|
if (kbd_polling)
|
|
{
|
|
sgetc(1);
|
|
return;
|
|
}
|
|
|
|
while ((c = (*kbdsw[kbd->kb_index]->read)(kbd, FALSE)) != -1)
|
|
{
|
|
ret = 1; /* got something */
|
|
dt = c;
|
|
|
|
if (pcvt_kbd_count >= PCVT_KBD_FIFO_SZ) /* fifo overflow ? */
|
|
{
|
|
log (LOG_WARNING, "pcvt: keyboard buffer overflow\n");
|
|
}
|
|
else
|
|
{
|
|
pcvt_kbd_fifo[pcvt_kbd_wptr++] = dt; /* data -> fifo */
|
|
|
|
PCVT_DISABLE_INTR (); /* XXX necessary ? */
|
|
pcvt_kbd_count++; /* update fifo count */
|
|
PCVT_ENABLE_INTR ();
|
|
|
|
if (pcvt_kbd_wptr >= PCVT_KBD_FIFO_SZ)
|
|
pcvt_kbd_wptr = 0; /* wraparound pointer */
|
|
}
|
|
}
|
|
|
|
if (ret == 1) /* got data from keyboard ? */
|
|
{
|
|
if (!pcvt_timeout_scheduled) /* if not already active .. */
|
|
{
|
|
PCVT_DISABLE_INTR ();
|
|
pcvt_timeout_scheduled = 1; /* flag active */
|
|
timeout(pcvt_timeout, NULL, hz / 100); /* fire off */
|
|
PCVT_ENABLE_INTR ();
|
|
}
|
|
}
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* start output
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
pcvt_start(register struct tty *tp)
|
|
{
|
|
register struct clist *rbp;
|
|
int s, len;
|
|
u_char buf[PCVT_PCBURST];
|
|
|
|
s = spltty();
|
|
|
|
if (tp->t_state & (TS_TIMEOUT|TS_BUSY|TS_TTSTOP))
|
|
goto out;
|
|
|
|
tp->t_state |= TS_BUSY;
|
|
|
|
splx(s);
|
|
|
|
async_update(UPDATE_KERN);
|
|
|
|
rbp = &tp->t_outq;
|
|
|
|
/*
|
|
* Call q_to_b() at spltty() to ensure that the queue is empty when
|
|
* the loop terminates.
|
|
*/
|
|
|
|
s = spltty();
|
|
|
|
while((len = q_to_b(rbp, buf, PCVT_PCBURST)) > 0)
|
|
{
|
|
if(vs[minor(tp->t_dev)].scrolling)
|
|
sgetc(SCROLLBACK_COOKIE);
|
|
|
|
/*
|
|
* We need to do this outside spl since it could be fairly
|
|
* expensive and we don't want our serial ports to overflow.
|
|
*/
|
|
splx(s);
|
|
sput(&buf[0], 0, len, minor(tp->t_dev));
|
|
s = spltty();
|
|
}
|
|
|
|
tp->t_state &= ~TS_BUSY;
|
|
|
|
ttwwakeup(tp);
|
|
|
|
out:
|
|
splx(s);
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* console probe
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
pcvt_cn_probe(struct consdev *cp)
|
|
{
|
|
int unit = 0;
|
|
|
|
/* See if this driver is disabled in probe hint. */
|
|
if (resource_disabled("vt", unit))
|
|
{
|
|
cp->cn_pri = CN_DEAD;
|
|
return;
|
|
}
|
|
|
|
kbd_configure(KB_CONF_PROBE_ONLY);
|
|
|
|
if (kbd_find_keyboard("*", unit) < 0)
|
|
{
|
|
cp->cn_pri = CN_DEAD;
|
|
return;
|
|
}
|
|
|
|
/* initialize required fields */
|
|
|
|
sprintf(cp->cn_name, "ttyv%r", 0);
|
|
cp->cn_pri = CN_INTERNAL;
|
|
pcvt_tty[0] = ttymalloc(pcvt_tty[0]);
|
|
cp->cn_tp = pcvt_tty[0];
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* console init
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
pcvt_cn_init(struct consdev *cp)
|
|
{
|
|
int unit = 0;
|
|
int i;
|
|
|
|
pcvt_is_console = 1;
|
|
pcvt_consptr = cp;
|
|
|
|
/*
|
|
* Don't reset the keyboard via `kbdio' just yet.
|
|
* The system clock has not been calibrated...
|
|
*/
|
|
reset_keyboard = 0;
|
|
|
|
if (kbd)
|
|
{
|
|
kbd_release(kbd, (void *)&kbd);
|
|
kbd = NULL;
|
|
}
|
|
|
|
i = kbd_allocate("*", -1, (void *)&kbd, pcvt_event, (void *)unit);
|
|
|
|
if (i >= 0)
|
|
kbd = kbd_get_keyboard(i);
|
|
|
|
#if PCVT_SCANSET == 2
|
|
/*
|
|
* Turn off scancode translation early so that
|
|
* DDB can read the keyboard.
|
|
*/
|
|
if (kbd)
|
|
{
|
|
empty_both_buffers(*(KBDC *)kbd->kb_data, 10);
|
|
set_controller_command_byte(*(KBDC *)kbd->kb_data,
|
|
KBD_TRANSLATION, 0);
|
|
}
|
|
#endif /* PCVT_SCANSET == 2 */
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* console finish
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
pcvt_cn_term(struct consdev *cp)
|
|
{
|
|
if (kbd)
|
|
{
|
|
kbd_release(kbd, (void *)&kbd);
|
|
kbd = NULL;
|
|
}
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* console put char
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
pcvt_cn_putc(struct consdev *cd, int c)
|
|
{
|
|
if (c == '\n')
|
|
sput("\r", 1, 1, 0);
|
|
|
|
sput((char *) &c, 1, 1, 0);
|
|
|
|
async_update(UPDATE_KERN);
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* console get char
|
|
*---------------------------------------------------------------------------*/
|
|
static int
|
|
pcvt_cn_getc(struct consdev *cd)
|
|
{
|
|
register int s;
|
|
static u_char *cp, cbuf[4]; /* Temp buf for multi-char key sequence. */
|
|
register u_char c;
|
|
|
|
#ifdef XSERVER
|
|
if (pcvt_kbd_raw)
|
|
return 0;
|
|
#endif /* XSERVER */
|
|
|
|
if (cp && *cp)
|
|
{
|
|
/*
|
|
* We still have a pending key sequence, e.g.
|
|
* from an arrow key. Deliver this one first.
|
|
*/
|
|
return (*cp++);
|
|
}
|
|
|
|
if (kbd == NULL)
|
|
return 0;
|
|
|
|
s = spltty(); /* block pcvt_rint while we poll */
|
|
kbd_polling = 1;
|
|
(*kbdsw[kbd->kb_index]->enable)(kbd);
|
|
cp = sgetc(0);
|
|
(*kbdsw[kbd->kb_index]->disable)(kbd);
|
|
kbd_polling = 0;
|
|
splx(s);
|
|
|
|
c = *cp++;
|
|
|
|
if (c && *cp)
|
|
{
|
|
/* Preserve the multi-char sequence for the next call. */
|
|
bcopy(cp, cbuf, 3); /* take care for a trailing '\0' */
|
|
cp = cbuf;
|
|
}
|
|
else
|
|
{
|
|
cp = 0;
|
|
}
|
|
return c;
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* console check for char
|
|
*---------------------------------------------------------------------------*/
|
|
static int
|
|
pcvt_cn_checkc(struct consdev *cd)
|
|
{
|
|
char *cp;
|
|
int x;
|
|
|
|
if (kbd == NULL)
|
|
return 0;
|
|
|
|
x = spltty();
|
|
kbd_polling = 1;
|
|
(*kbdsw[kbd->kb_index]->enable)(kbd);
|
|
cp = sgetc(1);
|
|
(*kbdsw[kbd->kb_index]->disable)(kbd);
|
|
kbd_polling = 0;
|
|
splx(x);
|
|
|
|
return (cp == NULL ? -1 : *cp);
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* Set line parameters
|
|
*---------------------------------------------------------------------------*/
|
|
static int
|
|
pcvt_param(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);
|
|
}
|
|
|
|
/*----------------------------------------------------------------------*
|
|
* read initial VGA palette (as stored by VGA ROM BIOS) into
|
|
* palette save area
|
|
*----------------------------------------------------------------------*/
|
|
static void
|
|
vgapelinit(void)
|
|
{
|
|
register unsigned idx;
|
|
register struct rgb *val;
|
|
|
|
/* first, read all and store to first screen's save buffer */
|
|
for(idx = 0, val = vs[0].palette; idx < NVGAPEL; idx++, val++)
|
|
vgapaletteio(idx, val, 0 /* read it */);
|
|
|
|
/* now, duplicate for remaining screens */
|
|
for(idx = 1; idx < PCVT_NSCREENS; idx++)
|
|
bcopy(vs[0].palette, vs[idx].palette,
|
|
NVGAPEL * sizeof(struct rgb));
|
|
}
|
|
|
|
/*-------------------------- E O F -------------------------------------*/
|