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freebsd-dev/sys/dev/syscons/syscons.c
Ed Schouten bc093719ca Integrate the new MPSAFE TTY layer to the FreeBSD operating system. 
The last half year I've been working on a replacement TTY layer for the
FreeBSD kernel. The new TTY layer was designed to improve the following:

- Improved driver model:

  The old TTY layer has a driver model that is not abstract enough to
  make it friendly to use. A good example is the output path, where the
  device drivers directly access the output buffers. This means that an
  in-kernel PPP implementation must always convert network buffers into
  TTY buffers.

  If a PPP implementation would be built on top of the new TTY layer
  (still needs a hooks layer, though), it would allow the PPP
  implementation to directly hand the data to the TTY driver.

- Improved hotplugging:

  With the old TTY layer, it isn't entirely safe to destroy TTY's from
  the system. This implementation has a two-step destructing design,
  where the driver first abandons the TTY. After all threads have left
  the TTY, the TTY layer calls a routine in the driver, which can be
  used to free resources (unit numbers, etc).

  The pts(4) driver also implements this feature, which means
  posix_openpt() will now return PTY's that are created on the fly.

- Improved performance:

  One of the major improvements is the per-TTY mutex, which is expected
  to improve scalability when compared to the old Giant locking.
  Another change is the unbuffered copying to userspace, which is both
  used on TTY device nodes and PTY masters.

Upgrading should be quite straightforward. Unlike previous versions,
existing kernel configuration files do not need to be changed, except
when they reference device drivers that are listed in UPDATING.

Obtained from:		//depot/projects/mpsafetty/...
Approved by:		philip (ex-mentor)
Discussed:		on the lists, at BSDCan, at the DevSummit
Sponsored by:		Snow B.V., the Netherlands
dcons(4) fixed by:	kan
2008-08-20 08:31:58 +00:00

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/*-
* Copyright (c) 1992-1998 Søren Schmidt
* All rights reserved.
*
* This code is derived from software contributed to The DragonFly Project
* by Sascha Wildner <saw@online.de>
*
* 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,
* without modification, immediately at the beginning of the file.
* 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. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include "opt_compat.h"
#include "opt_syscons.h"
#include "opt_splash.h"
#include "opt_ddb.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/conf.h>
#include <sys/cons.h>
#include <sys/consio.h>
#include <sys/kdb.h>
#include <sys/eventhandler.h>
#include <sys/fbio.h>
#include <sys/kbio.h>
#include <sys/kernel.h>
#include <sys/lock.h>
#include <sys/malloc.h>
#include <sys/mutex.h>
#include <sys/priv.h>
#include <sys/proc.h>
#include <sys/random.h>
#include <sys/reboot.h>
#include <sys/serial.h>
#include <sys/signalvar.h>
#include <sys/sysctl.h>
#include <sys/tty.h>
#include <sys/power.h>
#include <machine/clock.h>
#if defined(__sparc64__) || defined(__powerpc__)
#include <machine/sc_machdep.h>
#else
#include <machine/pc/display.h>
#endif
#if defined( __i386__) || defined(__amd64__)
#include <machine/psl.h>
#include <machine/frame.h>
#endif
#include <machine/stdarg.h>
#include <dev/kbd/kbdreg.h>
#include <dev/fb/fbreg.h>
#include <dev/fb/splashreg.h>
#include <dev/syscons/syscons.h>
#define COLD 0
#define WARM 1
#define DEFAULT_BLANKTIME (5*60) /* 5 minutes */
#define MAX_BLANKTIME (7*24*60*60) /* 7 days!? */
#define KEYCODE_BS 0x0e /* "<-- Backspace" key, XXX */
typedef struct default_attr {
int std_color; /* normal hardware color */
int rev_color; /* reverse hardware color */
} default_attr;
static default_attr user_default = {
SC_NORM_ATTR,
SC_NORM_REV_ATTR,
};
static default_attr kernel_default = {
SC_KERNEL_CONS_ATTR,
SC_KERNEL_CONS_REV_ATTR,
};
static int sc_console_unit = -1;
static int sc_saver_keyb_only = 1;
static scr_stat *sc_console;
static struct tty *sc_console_tty;
static struct consdev *sc_consptr;
static void *kernel_console_ts;
static scr_stat main_console;
static struct tty *main_devs[MAXCONS];
static char init_done = COLD;
static char shutdown_in_progress = FALSE;
static char sc_malloc = FALSE;
static int saver_mode = CONS_NO_SAVER; /* LKM/user saver */
static int run_scrn_saver = FALSE; /* should run the saver? */
static int enable_bell = TRUE; /* enable beeper */
#ifndef SC_DISABLE_REBOOT
static int enable_reboot = TRUE; /* enable keyboard reboot */
#endif
#ifndef SC_DISABLE_KDBKEY
static int enable_kdbkey = TRUE; /* enable keyboard debug */
#endif
static long scrn_blank_time = 0; /* screen saver timeout value */
#ifdef DEV_SPLASH
static int scrn_blanked; /* # of blanked screen */
static int sticky_splash = FALSE;
static void none_saver(sc_softc_t *sc, int blank) { }
static void (*current_saver)(sc_softc_t *, int) = none_saver;
#endif
SYSCTL_NODE(_hw, OID_AUTO, syscons, CTLFLAG_RD, 0, "syscons");
SYSCTL_NODE(_hw_syscons, OID_AUTO, saver, CTLFLAG_RD, 0, "saver");
SYSCTL_INT(_hw_syscons_saver, OID_AUTO, keybonly, CTLFLAG_RW,
&sc_saver_keyb_only, 0, "screen saver interrupted by input only");
SYSCTL_INT(_hw_syscons, OID_AUTO, bell, CTLFLAG_RW, &enable_bell,
0, "enable bell");
#ifndef SC_DISABLE_REBOOT
SYSCTL_INT(_hw_syscons, OID_AUTO, kbd_reboot, CTLFLAG_RW|CTLFLAG_SECURE, &enable_reboot,
0, "enable keyboard reboot");
#endif
#ifndef SC_DISABLE_KDBKEY
SYSCTL_INT(_hw_syscons, OID_AUTO, kbd_debug, CTLFLAG_RW|CTLFLAG_SECURE, &enable_kdbkey,
0, "enable keyboard debug");
#endif
#if !defined(SC_NO_FONT_LOADING) && defined(SC_DFLT_FONT)
#include "font.h"
#endif
tsw_ioctl_t *sc_user_ioctl;
static bios_values_t bios_value;
static int enable_panic_key;
SYSCTL_INT(_machdep, OID_AUTO, enable_panic_key, CTLFLAG_RW, &enable_panic_key,
0, "Enable panic via keypress specified in kbdmap(5)");
#define SC_CONSOLECTL 255
#define VTY_WCHAN(sc, vty) (&SC_DEV(sc, vty))
static int debugger;
/* prototypes */
static int sc_allocate_keyboard(sc_softc_t *sc, int unit);
static int scvidprobe(int unit, int flags, int cons);
static int sckbdprobe(int unit, int flags, int cons);
static void scmeminit(void *arg);
static int scdevtounit(struct tty *tp);
static kbd_callback_func_t sckbdevent;
static void scinit(int unit, int flags);
static scr_stat *sc_get_stat(struct tty *tp);
static void scterm(int unit, int flags);
static void scshutdown(void *arg, int howto);
static u_int scgetc(sc_softc_t *sc, u_int flags);
#define SCGETC_CN 1
#define SCGETC_NONBLOCK 2
static int sccngetch(int flags);
static void sccnupdate(scr_stat *scp);
static scr_stat *alloc_scp(sc_softc_t *sc, int vty);
static void init_scp(sc_softc_t *sc, int vty, scr_stat *scp);
static timeout_t scrn_timer;
static int and_region(int *s1, int *e1, int s2, int e2);
static void scrn_update(scr_stat *scp, int show_cursor);
#ifdef DEV_SPLASH
static int scsplash_callback(int event, void *arg);
static void scsplash_saver(sc_softc_t *sc, int show);
static int add_scrn_saver(void (*this_saver)(sc_softc_t *, int));
static int remove_scrn_saver(void (*this_saver)(sc_softc_t *, int));
static int set_scrn_saver_mode(scr_stat *scp, int mode, u_char *pal, int border);
static int restore_scrn_saver_mode(scr_stat *scp, int changemode);
static void stop_scrn_saver(sc_softc_t *sc, void (*saver)(sc_softc_t *, int));
static int wait_scrn_saver_stop(sc_softc_t *sc);
#define scsplash_stick(stick) (sticky_splash = (stick))
#else /* !DEV_SPLASH */
#define scsplash_stick(stick)
#endif /* DEV_SPLASH */
static int do_switch_scr(sc_softc_t *sc, int s);
static int vt_proc_alive(scr_stat *scp);
static int signal_vt_rel(scr_stat *scp);
static int signal_vt_acq(scr_stat *scp);
static int finish_vt_rel(scr_stat *scp, int release, int *s);
static int finish_vt_acq(scr_stat *scp);
static void exchange_scr(sc_softc_t *sc);
static void update_cursor_image(scr_stat *scp);
static void change_cursor_shape(scr_stat *scp, int flags, int base, int height);
static int save_kbd_state(scr_stat *scp);
static int update_kbd_state(scr_stat *scp, int state, int mask);
static int update_kbd_leds(scr_stat *scp, int which);
static timeout_t blink_screen;
static struct tty *sc_alloc_tty(int, const char *, ...) __printflike(2, 3);
static cn_probe_t sc_cnprobe;
static cn_init_t sc_cninit;
static cn_term_t sc_cnterm;
static cn_getc_t sc_cngetc;
static cn_putc_t sc_cnputc;
CONSOLE_DRIVER(sc);
static tsw_open_t sctty_open;
static tsw_close_t sctty_close;
static tsw_outwakeup_t sctty_outwakeup;
static tsw_ioctl_t sctty_ioctl;
static tsw_mmap_t sctty_mmap;
static struct ttydevsw sc_ttydevsw = {
/*
* XXX: we should use the prefix, but this doesn't work for
* consolectl.
*/
.tsw_flags = TF_NOPREFIX,
.tsw_open = sctty_open,
.tsw_close = sctty_close,
.tsw_outwakeup = sctty_outwakeup,
.tsw_ioctl = sctty_ioctl,
.tsw_mmap = sctty_mmap,
};
int
sc_probe_unit(int unit, int flags)
{
if (!scvidprobe(unit, flags, FALSE)) {
if (bootverbose)
printf("%s%d: no video adapter found.\n", SC_DRIVER_NAME, unit);
return ENXIO;
}
/* syscons will be attached even when there is no keyboard */
sckbdprobe(unit, flags, FALSE);
return 0;
}
/* probe video adapters, return TRUE if found */
static int
scvidprobe(int unit, int flags, int cons)
{
/*
* Access the video adapter driver through the back door!
* Video adapter drivers need to be configured before syscons.
* However, when syscons is being probed as the low-level console,
* they have not been initialized yet. We force them to initialize
* themselves here. XXX
*/
vid_configure(cons ? VIO_PROBE_ONLY : 0);
return (vid_find_adapter("*", unit) >= 0);
}
/* probe the keyboard, return TRUE if found */
static int
sckbdprobe(int unit, int flags, int cons)
{
/* access the keyboard driver through the backdoor! */
kbd_configure(cons ? KB_CONF_PROBE_ONLY : 0);
return (kbd_find_keyboard("*", unit) >= 0);
}
static char
*adapter_name(video_adapter_t *adp)
{
static struct {
int type;
char *name[2];
} names[] = {
{ KD_MONO, { "MDA", "MDA" } },
{ KD_HERCULES, { "Hercules", "Hercules" } },
{ KD_CGA, { "CGA", "CGA" } },
{ KD_EGA, { "EGA", "EGA (mono)" } },
{ KD_VGA, { "VGA", "VGA (mono)" } },
{ KD_PC98, { "PC-98x1", "PC-98x1" } },
{ KD_TGA, { "TGA", "TGA" } },
{ -1, { "Unknown", "Unknown" } },
};
int i;
for (i = 0; names[i].type != -1; ++i)
if (names[i].type == adp->va_type)
break;
return names[i].name[(adp->va_flags & V_ADP_COLOR) ? 0 : 1];
}
static void
sctty_outwakeup(struct tty *tp)
{
size_t len;
u_char buf[PCBURST];
scr_stat *scp = sc_get_stat(tp);
if (scp->status & SLKED ||
(scp == scp->sc->cur_scp && scp->sc->blink_in_progress))
return;
for (;;) {
len = ttydisc_getc(tp, buf, sizeof buf);
if (len == 0)
break;
sc_puts(scp, buf, len);
}
}
static struct tty *
sc_alloc_tty(int index, const char *fmt, ...)
{
va_list ap;
struct sc_ttysoftc *stc;
struct tty *tp;
char name[11]; /* "consolectl" */
va_start(ap, fmt);
/* Allocate TTY object and softc to store unit number. */
stc = malloc(sizeof(struct sc_ttysoftc), M_DEVBUF, M_WAITOK);
stc->st_index = index;
stc->st_stat = NULL;
tp = tty_alloc(&sc_ttydevsw, stc, &Giant);
/* Create device node. */
va_start(ap, fmt);
vsnrprintf(name, sizeof name, 32, fmt, ap);
va_end(ap);
tty_makedev(tp, NULL, "%s", name);
return (tp);
}
int
sc_attach_unit(int unit, int flags)
{
sc_softc_t *sc;
scr_stat *scp;
#ifdef SC_PIXEL_MODE
video_info_t info;
#endif
int vc;
flags &= ~SC_KERNEL_CONSOLE;
if (sc_console_unit == unit) {
/*
* If this unit is being used as the system console, we need to
* adjust some variables and buffers before and after scinit().
*/
/* assert(sc_console != NULL) */
flags |= SC_KERNEL_CONSOLE;
scmeminit(NULL);
scinit(unit, flags);
if (sc_console->tsw->te_size > 0) {
/* assert(sc_console->ts != NULL); */
kernel_console_ts = sc_console->ts;
sc_console->ts = malloc(sc_console->tsw->te_size,
M_DEVBUF, M_WAITOK);
bcopy(kernel_console_ts, sc_console->ts, sc_console->tsw->te_size);
(*sc_console->tsw->te_default_attr)(sc_console,
user_default.std_color,
user_default.rev_color);
}
} else {
scinit(unit, flags);
}
sc = sc_get_softc(unit, flags & SC_KERNEL_CONSOLE);
sc->config = flags;
scp = sc_get_stat(sc->dev[0]);
if (sc_console == NULL) /* sc_console_unit < 0 */
sc_console = scp;
#ifdef SC_PIXEL_MODE
if ((sc->config & SC_VESA800X600)
&& (vidd_get_info(sc->adp, M_VESA_800x600, &info) == 0)) {
#ifdef DEV_SPLASH
if (sc->flags & SC_SPLASH_SCRN)
splash_term(sc->adp);
#endif
sc_set_graphics_mode(scp, NULL, M_VESA_800x600);
sc_set_pixel_mode(scp, NULL, COL, ROW, 16, 8);
sc->initial_mode = M_VESA_800x600;
#ifdef DEV_SPLASH
/* put up the splash again! */
if (sc->flags & SC_SPLASH_SCRN)
splash_init(sc->adp, scsplash_callback, sc);
#endif
}
#endif /* SC_PIXEL_MODE */
/* initialize cursor */
if (!ISGRAPHSC(scp))
update_cursor_image(scp);
/* get screen update going */
scrn_timer(sc);
/* set up the keyboard */
kbdd_ioctl(sc->kbd, KDSKBMODE, (caddr_t)&scp->kbd_mode);
update_kbd_state(scp, scp->status, LOCK_MASK);
printf("%s%d: %s <%d virtual consoles, flags=0x%x>\n",
SC_DRIVER_NAME, unit, adapter_name(sc->adp), sc->vtys, sc->config);
if (bootverbose) {
printf("%s%d:", SC_DRIVER_NAME, unit);
if (sc->adapter >= 0)
printf(" fb%d", sc->adapter);
if (sc->keyboard >= 0)
printf(", kbd%d", sc->keyboard);
if (scp->tsw)
printf(", terminal emulator: %s (%s)",
scp->tsw->te_name, scp->tsw->te_desc);
printf("\n");
}
/* register a shutdown callback for the kernel console */
if (sc_console_unit == unit)
EVENTHANDLER_REGISTER(shutdown_pre_sync, scshutdown,
(void *)(uintptr_t)unit, SHUTDOWN_PRI_DEFAULT);
for (vc = 0; vc < sc->vtys; vc++) {
if (sc->dev[vc] == NULL) {
sc->dev[vc] = sc_alloc_tty(vc, "ttyv%r", vc + unit * MAXCONS);
if (vc == 0 && sc->dev == main_devs)
SC_STAT(sc->dev[0]) = &main_console;
}
/*
* The first vty already has struct tty and scr_stat initialized
* in scinit(). The other vtys will have these structs when
* first opened.
*/
}
sc_console_tty = sc_alloc_tty(0, "consolectl");
SC_STAT(sc_console_tty) = sc_console;
return 0;
}
static void
scmeminit(void *arg)
{
if (sc_malloc)
return;
sc_malloc = TRUE;
/*
* As soon as malloc() becomes functional, we had better allocate
* various buffers for the kernel console.
*/
if (sc_console_unit < 0) /* sc_console == NULL */
return;
/* copy the temporary buffer to the final buffer */
sc_alloc_scr_buffer(sc_console, FALSE, FALSE);
#ifndef SC_NO_CUTPASTE
sc_alloc_cut_buffer(sc_console, FALSE);
#endif
#ifndef SC_NO_HISTORY
/* initialize history buffer & pointers */
sc_alloc_history_buffer(sc_console, 0, 0, FALSE);
#endif
}
/* XXX */
SYSINIT(sc_mem, SI_SUB_KMEM, SI_ORDER_ANY, scmeminit, NULL);
static int
scdevtounit(struct tty *tp)
{
int vty = SC_VTY(tp);
if (vty == SC_CONSOLECTL)
return ((sc_console != NULL) ? sc_console->sc->unit : -1);
else if ((vty < 0) || (vty >= MAXCONS*sc_max_unit()))
return -1;
else
return vty/MAXCONS;
}
static int
sctty_open(struct tty *tp)
{
int unit = scdevtounit(tp);
sc_softc_t *sc;
scr_stat *scp;
#ifndef __sparc64__
keyarg_t key;
#endif
DPRINTF(5, ("scopen: dev:%s, unit:%d, vty:%d\n",
devtoname(tp->t_dev), unit, SC_VTY(tp)));
sc = sc_get_softc(unit, (sc_console_unit == unit) ? SC_KERNEL_CONSOLE : 0);
if (sc == NULL)
return ENXIO;
if (!tty_opened(tp)) {
/* Use the current setting of the <-- key as default VERASE. */
/* If the Delete key is preferable, an stty is necessary */
#ifndef __sparc64__
if (sc->kbd != NULL) {
key.keynum = KEYCODE_BS;
kbdd_ioctl(sc->kbd, GIO_KEYMAPENT, (caddr_t)&key);
tp->t_termios.c_cc[VERASE] = key.key.map[0];
}
#endif
}
scp = sc_get_stat(tp);
if (scp == NULL) {
scp = SC_STAT(tp) = alloc_scp(sc, SC_VTY(tp));
if (ISGRAPHSC(scp))
sc_set_pixel_mode(scp, NULL, COL, ROW, 16, 8);
}
if (!tp->t_winsize.ws_col && !tp->t_winsize.ws_row) {
tp->t_winsize.ws_col = scp->xsize;
tp->t_winsize.ws_row = scp->ysize;
}
return (0);
}
static void
sctty_close(struct tty *tp)
{
scr_stat *scp;
int s;
if (SC_VTY(tp) != SC_CONSOLECTL) {
scp = sc_get_stat(tp);
/* were we in the middle of the VT switching process? */
DPRINTF(5, ("sc%d: scclose(), ", scp->sc->unit));
s = spltty();
if ((scp == scp->sc->cur_scp) && (scp->sc->unit == sc_console_unit))
cnavailable(sc_consptr, TRUE);
if (finish_vt_rel(scp, TRUE, &s) == 0) /* force release */
DPRINTF(5, ("reset WAIT_REL, "));
if (finish_vt_acq(scp) == 0) /* force acknowledge */
DPRINTF(5, ("reset WAIT_ACQ, "));
#ifdef not_yet_done
if (scp == &main_console) {
scp->pid = 0;
scp->proc = NULL;
scp->smode.mode = VT_AUTO;
}
else {
sc_vtb_destroy(&scp->vtb);
#ifndef __sparc64__
sc_vtb_destroy(&scp->scr);
#endif
sc_free_history_buffer(scp, scp->ysize);
SC_STAT(tp) = NULL;
free(scp, M_DEVBUF);
}
#else
scp->pid = 0;
scp->proc = NULL;
scp->smode.mode = VT_AUTO;
#endif
scp->kbd_mode = K_XLATE;
if (scp == scp->sc->cur_scp)
kbdd_ioctl(scp->sc->kbd, KDSKBMODE, (caddr_t)&scp->kbd_mode);
DPRINTF(5, ("done.\n"));
}
}
#if 0 /* XXX mpsafetty: fix screensaver. What about outwakeup? */
static int
scread(struct cdev *dev, struct uio *uio, int flag)
{
if (!sc_saver_keyb_only)
sc_touch_scrn_saver();
return ttyread(dev, uio, flag);
}
#endif
static int
sckbdevent(keyboard_t *thiskbd, int event, void *arg)
{
sc_softc_t *sc;
struct tty *cur_tty;
int c, error = 0;
size_t len;
u_char *cp;
sc = (sc_softc_t *)arg;
/* assert(thiskbd == sc->kbd) */
mtx_lock(&Giant);
switch (event) {
case KBDIO_KEYINPUT:
break;
case KBDIO_UNLOADING:
sc->kbd = NULL;
sc->keyboard = -1;
kbd_release(thiskbd, (void *)&sc->keyboard);
goto done;
default:
error = EINVAL;
goto done;
}
/*
* Loop while there is still input to get from the keyboard.
* I don't think this is nessesary, and it doesn't fix
* the Xaccel-2.1 keyboard hang, but it can't hurt. XXX
*/
while ((c = scgetc(sc, SCGETC_NONBLOCK)) != NOKEY) {
cur_tty = SC_DEV(sc, sc->cur_scp->index);
if (!tty_opened(cur_tty)) {
cur_tty = sc_console_tty;
if (cur_tty == NULL)
continue;
if (!tty_opened(cur_tty))
continue;
}
if ((*sc->cur_scp->tsw->te_input)(sc->cur_scp, c, cur_tty))
continue;
switch (KEYFLAGS(c)) {
case 0x0000: /* normal key */
ttydisc_rint(cur_tty, KEYCHAR(c), 0);
break;
case FKEY: /* function key, return string */
cp = kbdd_get_fkeystr(thiskbd, KEYCHAR(c), &len);
if (cp != NULL) {
if (ttydisc_can_bypass(cur_tty)) {
ttydisc_rint_bypass(cur_tty, cp, len);
} else {
while (len-- > 0)
ttydisc_rint(cur_tty, *cp++, 0);
}
}
break;
case MKEY: /* meta is active, prepend ESC */
ttydisc_rint(cur_tty, 0x1b, 0);
ttydisc_rint(cur_tty, KEYCHAR(c), 0);
break;
case BKEY: /* backtab fixed sequence (esc [ Z) */
ttydisc_rint(cur_tty, 0x1b, 0);
ttydisc_rint(cur_tty, '[', 0);
ttydisc_rint(cur_tty, 'Z', 0);
break;
}
ttydisc_rint_done(cur_tty);
}
sc->cur_scp->status |= MOUSE_HIDDEN;
done:
mtx_unlock(&Giant);
return (error);
}
static int
sctty_ioctl(struct tty *tp, u_long cmd, caddr_t data, struct thread *td)
{
int error;
int i;
sc_softc_t *sc;
scr_stat *scp;
int s;
#if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
int ival;
#endif
/* If there is a user_ioctl function call that first */
if (sc_user_ioctl) {
error = (*sc_user_ioctl)(tp, cmd, data, td);
if (error != ENOIOCTL)
return error;
}
error = sc_vid_ioctl(tp, cmd, data, td);
if (error != ENOIOCTL)
return error;
#ifndef SC_NO_HISTORY
error = sc_hist_ioctl(tp, cmd, data, td);
if (error != ENOIOCTL)
return error;
#endif
#ifndef SC_NO_SYSMOUSE
error = sc_mouse_ioctl(tp, cmd, data, td);
if (error != ENOIOCTL)
return error;
#endif
scp = sc_get_stat(tp);
/* assert(scp != NULL) */
/* scp is sc_console, if SC_VTY(dev) == SC_CONSOLECTL. */
sc = scp->sc;
if (scp->tsw) {
error = (*scp->tsw->te_ioctl)(scp, tp, cmd, data, td);
if (error != ENOIOCTL)
return error;
}
switch (cmd) { /* process console hardware related ioctl's */
case GIO_ATTR: /* get current attributes */
/* this ioctl is not processed here, but in the terminal emulator */
return ENOTTY;
case GIO_COLOR: /* is this a color console ? */
*(int *)data = (sc->adp->va_flags & V_ADP_COLOR) ? 1 : 0;
return 0;
case CONS_BLANKTIME: /* set screen saver timeout (0 = no saver) */
if (*(int *)data < 0 || *(int *)data > MAX_BLANKTIME)
return EINVAL;
s = spltty();
scrn_blank_time = *(int *)data;
run_scrn_saver = (scrn_blank_time != 0);
splx(s);
return 0;
case CONS_CURSORTYPE: /* set cursor type (obsolete) */
s = spltty();
*(int *)data &= CONS_CURSOR_ATTRS;
sc_change_cursor_shape(scp, *(int *)data, -1, -1);
splx(s);
return 0;
case CONS_GETCURSORSHAPE: /* get cursor shape (new interface) */
if (((int *)data)[0] & CONS_LOCAL_CURSOR) {
((int *)data)[0] = scp->curr_curs_attr.flags;
((int *)data)[1] = scp->curr_curs_attr.base;
((int *)data)[2] = scp->curr_curs_attr.height;
} else {
((int *)data)[0] = sc->curs_attr.flags;
((int *)data)[1] = sc->curs_attr.base;
((int *)data)[2] = sc->curs_attr.height;
}
return 0;
case CONS_SETCURSORSHAPE: /* set cursor shape (new interface) */
s = spltty();
sc_change_cursor_shape(scp, ((int *)data)[0],
((int *)data)[1], ((int *)data)[2]);
splx(s);
return 0;
case CONS_BELLTYPE: /* set bell type sound/visual */
if ((*(int *)data) & CONS_VISUAL_BELL)
sc->flags |= SC_VISUAL_BELL;
else
sc->flags &= ~SC_VISUAL_BELL;
if ((*(int *)data) & CONS_QUIET_BELL)
sc->flags |= SC_QUIET_BELL;
else
sc->flags &= ~SC_QUIET_BELL;
return 0;
case CONS_GETINFO: /* get current (virtual) console info */
{
vid_info_t *ptr = (vid_info_t*)data;
if (ptr->size == sizeof(struct vid_info)) {
ptr->m_num = sc->cur_scp->index;
ptr->font_size = scp->font_size;
ptr->mv_col = scp->xpos;
ptr->mv_row = scp->ypos;
ptr->mv_csz = scp->xsize;
ptr->mv_rsz = scp->ysize;
ptr->mv_hsz = (scp->history != NULL) ? scp->history->vtb_rows : 0;
/*
* The following fields are filled by the terminal emulator. XXX
*
* ptr->mv_norm.fore
* ptr->mv_norm.back
* ptr->mv_rev.fore
* ptr->mv_rev.back
*/
ptr->mv_grfc.fore = 0; /* not supported */
ptr->mv_grfc.back = 0; /* not supported */
ptr->mv_ovscan = scp->border;
if (scp == sc->cur_scp)
save_kbd_state(scp);
ptr->mk_keylock = scp->status & LOCK_MASK;
return 0;
}
return EINVAL;
}
case CONS_GETVERS: /* get version number */
*(int*)data = 0x200; /* version 2.0 */
return 0;
case CONS_IDLE: /* see if the screen has been idle */
/*
* When the screen is in the GRAPHICS_MODE or UNKNOWN_MODE,
* the user process may have been writing something on the
* screen and syscons is not aware of it. Declare the screen
* is NOT idle if it is in one of these modes. But there is
* an exception to it; if a screen saver is running in the
* graphics mode in the current screen, we should say that the
* screen has been idle.
*/
*(int *)data = (sc->flags & SC_SCRN_IDLE)
&& (!ISGRAPHSC(sc->cur_scp)
|| (sc->cur_scp->status & SAVER_RUNNING));
return 0;
case CONS_SAVERMODE: /* set saver mode */
switch(*(int *)data) {
case CONS_NO_SAVER:
case CONS_USR_SAVER:
/* if a LKM screen saver is running, stop it first. */
scsplash_stick(FALSE);
saver_mode = *(int *)data;
s = spltty();
#ifdef DEV_SPLASH
if ((error = wait_scrn_saver_stop(NULL))) {
splx(s);
return error;
}
#endif
run_scrn_saver = TRUE;
if (saver_mode == CONS_USR_SAVER)
scp->status |= SAVER_RUNNING;
else
scp->status &= ~SAVER_RUNNING;
scsplash_stick(TRUE);
splx(s);
break;
case CONS_LKM_SAVER:
s = spltty();
if ((saver_mode == CONS_USR_SAVER) && (scp->status & SAVER_RUNNING))
scp->status &= ~SAVER_RUNNING;
saver_mode = *(int *)data;
splx(s);
break;
default:
return EINVAL;
}
return 0;
case CONS_SAVERSTART: /* immediately start/stop the screen saver */
/*
* Note that this ioctl does not guarantee the screen saver
* actually starts or stops. It merely attempts to do so...
*/
s = spltty();
run_scrn_saver = (*(int *)data != 0);
if (run_scrn_saver)
sc->scrn_time_stamp -= scrn_blank_time;
splx(s);
return 0;
case CONS_SCRSHOT: /* get a screen shot */
{
int retval, hist_rsz;
size_t lsize, csize;
vm_offset_t frbp, hstp;
unsigned lnum;
scrshot_t *ptr = (scrshot_t *)data;
void *outp = ptr->buf;
if (ptr->x < 0 || ptr->y < 0 || ptr->xsize < 0 || ptr->ysize < 0)
return EINVAL;
s = spltty();
if (ISGRAPHSC(scp)) {
splx(s);
return EOPNOTSUPP;
}
hist_rsz = (scp->history != NULL) ? scp->history->vtb_rows : 0;
if (((u_int)ptr->x + ptr->xsize) > scp->xsize ||
((u_int)ptr->y + ptr->ysize) > (scp->ysize + hist_rsz)) {
splx(s);
return EINVAL;
}
lsize = scp->xsize * sizeof(u_int16_t);
csize = ptr->xsize * sizeof(u_int16_t);
/* Pointer to the last line of framebuffer */
frbp = scp->vtb.vtb_buffer + scp->ysize * lsize + ptr->x *
sizeof(u_int16_t);
/* Pointer to the last line of target buffer */
outp = (char *)outp + ptr->ysize * csize;
/* Pointer to the last line of history buffer */
if (scp->history != NULL)
hstp = scp->history->vtb_buffer + sc_vtb_tail(scp->history) *
sizeof(u_int16_t) + ptr->x * sizeof(u_int16_t);
else
hstp = 0;
retval = 0;
for (lnum = 0; lnum < (ptr->y + ptr->ysize); lnum++) {
if (lnum < scp->ysize) {
frbp -= lsize;
} else {
hstp -= lsize;
if (hstp < scp->history->vtb_buffer)
hstp += scp->history->vtb_rows * lsize;
frbp = hstp;
}
if (lnum < ptr->y)
continue;
outp = (char *)outp - csize;
retval = copyout((void *)frbp, outp, csize);
if (retval != 0)
break;
}
splx(s);
return retval;
}
case VT_SETMODE: /* set screen switcher mode */
{
struct vt_mode *mode;
struct proc *p1;
mode = (struct vt_mode *)data;
DPRINTF(5, ("%s%d: VT_SETMODE ", SC_DRIVER_NAME, sc->unit));
if (scp->smode.mode == VT_PROCESS) {
p1 = pfind(scp->pid);
if (scp->proc == p1 && scp->proc != td->td_proc) {
if (p1)
PROC_UNLOCK(p1);
DPRINTF(5, ("error EPERM\n"));
return EPERM;
}
if (p1)
PROC_UNLOCK(p1);
}
s = spltty();
if (mode->mode == VT_AUTO) {
scp->smode.mode = VT_AUTO;
scp->proc = NULL;
scp->pid = 0;
DPRINTF(5, ("VT_AUTO, "));
if ((scp == sc->cur_scp) && (sc->unit == sc_console_unit))
cnavailable(sc_consptr, TRUE);
/* were we in the middle of the vty switching process? */
if (finish_vt_rel(scp, TRUE, &s) == 0)
DPRINTF(5, ("reset WAIT_REL, "));
if (finish_vt_acq(scp) == 0)
DPRINTF(5, ("reset WAIT_ACQ, "));
} else {
if (!ISSIGVALID(mode->relsig) || !ISSIGVALID(mode->acqsig)
|| !ISSIGVALID(mode->frsig)) {
splx(s);
DPRINTF(5, ("error EINVAL\n"));
return EINVAL;
}
DPRINTF(5, ("VT_PROCESS %d, ", td->td_proc->p_pid));
bcopy(data, &scp->smode, sizeof(struct vt_mode));
scp->proc = td->td_proc;
scp->pid = scp->proc->p_pid;
if ((scp == sc->cur_scp) && (sc->unit == sc_console_unit))
cnavailable(sc_consptr, FALSE);
}
splx(s);
DPRINTF(5, ("\n"));
return 0;
}
case VT_GETMODE: /* get screen switcher mode */
bcopy(&scp->smode, data, sizeof(struct vt_mode));
return 0;
#if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
case _IO('v', 4):
ival = IOCPARM_IVAL(data);
data = (caddr_t)&ival;
/* FALLTHROUGH */
#endif
case VT_RELDISP: /* screen switcher ioctl */
s = spltty();
/*
* This must be the current vty which is in the VT_PROCESS
* switching mode...
*/
if ((scp != sc->cur_scp) || (scp->smode.mode != VT_PROCESS)) {
splx(s);
return EINVAL;
}
/* ...and this process is controlling it. */
if (scp->proc != td->td_proc) {
splx(s);
return EPERM;
}
error = EINVAL;
switch(*(int *)data) {
case VT_FALSE: /* user refuses to release screen, abort */
if ((error = finish_vt_rel(scp, FALSE, &s)) == 0)
DPRINTF(5, ("%s%d: VT_FALSE\n", SC_DRIVER_NAME, sc->unit));
break;
case VT_TRUE: /* user has released screen, go on */
if ((error = finish_vt_rel(scp, TRUE, &s)) == 0)
DPRINTF(5, ("%s%d: VT_TRUE\n", SC_DRIVER_NAME, sc->unit));
break;
case VT_ACKACQ: /* acquire acknowledged, switch completed */
if ((error = finish_vt_acq(scp)) == 0)
DPRINTF(5, ("%s%d: VT_ACKACQ\n", SC_DRIVER_NAME, sc->unit));
break;
default:
break;
}
splx(s);
return error;
case VT_OPENQRY: /* return free virtual console */
for (i = sc->first_vty; i < sc->first_vty + sc->vtys; i++) {
tp = SC_DEV(sc, i);
if (!tty_opened(tp)) {
*(int *)data = i + 1;
return 0;
}
}
return EINVAL;
#if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
case _IO('v', 5):
ival = IOCPARM_IVAL(data);
data = (caddr_t)&ival;
/* FALLTHROUGH */
#endif
case VT_ACTIVATE: /* switch to screen *data */
i = (*(int *)data == 0) ? scp->index : (*(int *)data - 1);
s = spltty();
error = sc_clean_up(sc->cur_scp);
splx(s);
if (error)
return error;
error = sc_switch_scr(sc, i);
return (error);
#if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
case _IO('v', 6):
ival = IOCPARM_IVAL(data);
data = (caddr_t)&ival;
/* FALLTHROUGH */
#endif
case VT_WAITACTIVE: /* wait for switch to occur */
i = (*(int *)data == 0) ? scp->index : (*(int *)data - 1);
if ((i < sc->first_vty) || (i >= sc->first_vty + sc->vtys))
return EINVAL;
if (i == sc->cur_scp->index)
return 0;
error = tsleep(VTY_WCHAN(sc, i), (PZERO + 1) | PCATCH, "waitvt", 0);
return error;
case VT_GETACTIVE: /* get active vty # */
*(int *)data = sc->cur_scp->index + 1;
return 0;
case VT_GETINDEX: /* get this vty # */
*(int *)data = scp->index + 1;
return 0;
case VT_LOCKSWITCH: /* prevent vty switching */
if ((*(int *)data) & 0x01)
sc->flags |= SC_SCRN_VTYLOCK;
else
sc->flags &= ~SC_SCRN_VTYLOCK;
return 0;
case KDENABIO: /* allow io operations */
error = priv_check(td, PRIV_IO);
if (error != 0)
return error;
error = securelevel_gt(td->td_ucred, 0);
if (error != 0)
return error;
#ifdef __i386__
td->td_frame->tf_eflags |= PSL_IOPL;
#elif defined(__amd64__)
td->td_frame->tf_rflags |= PSL_IOPL;
#endif
return 0;
case KDDISABIO: /* disallow io operations (default) */
#ifdef __i386__
td->td_frame->tf_eflags &= ~PSL_IOPL;
#elif defined(__amd64__)
td->td_frame->tf_rflags &= ~PSL_IOPL;
#endif
return 0;
#if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
case _IO('K', 20):
ival = IOCPARM_IVAL(data);
data = (caddr_t)&ival;
/* FALLTHROUGH */
#endif
case KDSKBSTATE: /* set keyboard state (locks) */
if (*(int *)data & ~LOCK_MASK)
return EINVAL;
scp->status &= ~LOCK_MASK;
scp->status |= *(int *)data;
if (scp == sc->cur_scp)
update_kbd_state(scp, scp->status, LOCK_MASK);
return 0;
case KDGKBSTATE: /* get keyboard state (locks) */
if (scp == sc->cur_scp)
save_kbd_state(scp);
*(int *)data = scp->status & LOCK_MASK;
return 0;
case KDGETREPEAT: /* get keyboard repeat & delay rates */
case KDSETREPEAT: /* set keyboard repeat & delay rates (new) */
error = kbdd_ioctl(sc->kbd, cmd, data);
if (error == ENOIOCTL)
error = ENODEV;
return error;
#if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
case _IO('K', 67):
ival = IOCPARM_IVAL(data);
data = (caddr_t)&ival;
/* FALLTHROUGH */
#endif
case KDSETRAD: /* set keyboard repeat & delay rates (old) */
if (*(int *)data & ~0x7f)
return EINVAL;
error = kbdd_ioctl(sc->kbd, KDSETRAD, data);
if (error == ENOIOCTL)
error = ENODEV;
return error;
#if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
case _IO('K', 7):
ival = IOCPARM_IVAL(data);
data = (caddr_t)&ival;
/* FALLTHROUGH */
#endif
case KDSKBMODE: /* set keyboard mode */
switch (*(int *)data) {
case K_XLATE: /* switch to XLT ascii mode */
case K_RAW: /* switch to RAW scancode mode */
case K_CODE: /* switch to CODE mode */
scp->kbd_mode = *(int *)data;
if (scp == sc->cur_scp)
kbdd_ioctl(sc->kbd, KDSKBMODE, data);
return 0;
default:
return EINVAL;
}
/* NOT REACHED */
case KDGKBMODE: /* get keyboard mode */
*(int *)data = scp->kbd_mode;
return 0;
case KDGKBINFO:
error = kbdd_ioctl(sc->kbd, cmd, data);
if (error == ENOIOCTL)
error = ENODEV;
return error;
#if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
case _IO('K', 8):
ival = IOCPARM_IVAL(data);
data = (caddr_t)&ival;
/* FALLTHROUGH */
#endif
case KDMKTONE: /* sound the bell */
if (*(int*)data)
sc_bell(scp, (*(int*)data)&0xffff,
(((*(int*)data)>>16)&0xffff)*hz/1000);
else
sc_bell(scp, scp->bell_pitch, scp->bell_duration);
return 0;
#if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
case _IO('K', 63):
ival = IOCPARM_IVAL(data);
data = (caddr_t)&ival;
/* FALLTHROUGH */
#endif
case KIOCSOUND: /* make tone (*data) hz */
if (scp == sc->cur_scp) {
if (*(int *)data)
return sc_tone(*(int *)data);
else
return sc_tone(0);
}
return 0;
case KDGKBTYPE: /* get keyboard type */
error = kbdd_ioctl(sc->kbd, cmd, data);
if (error == ENOIOCTL) {
/* always return something? XXX */
*(int *)data = 0;
}
return 0;
#if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
case _IO('K', 66):
ival = IOCPARM_IVAL(data);
data = (caddr_t)&ival;
/* FALLTHROUGH */
#endif
case KDSETLED: /* set keyboard LED status */
if (*(int *)data & ~LED_MASK) /* FIXME: LOCK_MASK? */
return EINVAL;
scp->status &= ~LED_MASK;
scp->status |= *(int *)data;
if (scp == sc->cur_scp)
update_kbd_leds(scp, scp->status);
return 0;
case KDGETLED: /* get keyboard LED status */
if (scp == sc->cur_scp)
save_kbd_state(scp);
*(int *)data = scp->status & LED_MASK;
return 0;
case KBADDKBD: /* add/remove keyboard to/from mux */
case KBRELKBD:
error = kbdd_ioctl(sc->kbd, cmd, data);
if (error == ENOIOCTL)
error = ENODEV;
return error;
#if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
case _IO('c', 110):
ival = IOCPARM_IVAL(data);
data = (caddr_t)&ival;
/* FALLTHROUGH */
#endif
case CONS_SETKBD: /* set the new keyboard */
{
keyboard_t *newkbd;
s = spltty();
newkbd = kbd_get_keyboard(*(int *)data);
if (newkbd == NULL) {
splx(s);
return EINVAL;
}
error = 0;
if (sc->kbd != newkbd) {
i = kbd_allocate(newkbd->kb_name, newkbd->kb_unit,
(void *)&sc->keyboard, sckbdevent, sc);
/* i == newkbd->kb_index */
if (i >= 0) {
if (sc->kbd != NULL) {
save_kbd_state(sc->cur_scp);
kbd_release(sc->kbd, (void *)&sc->keyboard);
}
sc->kbd = kbd_get_keyboard(i); /* sc->kbd == newkbd */
sc->keyboard = i;
kbdd_ioctl(sc->kbd, KDSKBMODE,
(caddr_t)&sc->cur_scp->kbd_mode);
update_kbd_state(sc->cur_scp, sc->cur_scp->status,
LOCK_MASK);
} else {
error = EPERM; /* XXX */
}
}
splx(s);
return error;
}
case CONS_RELKBD: /* release the current keyboard */
s = spltty();
error = 0;
if (sc->kbd != NULL) {
save_kbd_state(sc->cur_scp);
error = kbd_release(sc->kbd, (void *)&sc->keyboard);
if (error == 0) {
sc->kbd = NULL;
sc->keyboard = -1;
}
}
splx(s);
return error;
case CONS_GETTERM: /* get the current terminal emulator info */
{
sc_term_sw_t *sw;
if (((term_info_t *)data)->ti_index == 0) {
sw = scp->tsw;
} else {
sw = sc_term_match_by_number(((term_info_t *)data)->ti_index);
}
if (sw != NULL) {
strncpy(((term_info_t *)data)->ti_name, sw->te_name,
sizeof(((term_info_t *)data)->ti_name));
strncpy(((term_info_t *)data)->ti_desc, sw->te_desc,
sizeof(((term_info_t *)data)->ti_desc));
((term_info_t *)data)->ti_flags = 0;
return 0;
} else {
((term_info_t *)data)->ti_name[0] = '\0';
((term_info_t *)data)->ti_desc[0] = '\0';
((term_info_t *)data)->ti_flags = 0;
return EINVAL;
}
}
case CONS_SETTERM: /* set the current terminal emulator */
s = spltty();
error = sc_init_emulator(scp, ((term_info_t *)data)->ti_name);
/* FIXME: what if scp == sc_console! XXX */
splx(s);
return error;
case GIO_SCRNMAP: /* get output translation table */
bcopy(&sc->scr_map, data, sizeof(sc->scr_map));
return 0;
case PIO_SCRNMAP: /* set output translation table */
bcopy(data, &sc->scr_map, sizeof(sc->scr_map));
for (i=0; i<sizeof(sc->scr_map); i++) {
sc->scr_rmap[sc->scr_map[i]] = i;
}
return 0;
case GIO_KEYMAP: /* get keyboard translation table */
case PIO_KEYMAP: /* set keyboard translation table */
case GIO_DEADKEYMAP: /* get accent key translation table */
case PIO_DEADKEYMAP: /* set accent key translation table */
case GETFKEY: /* get function key string */
case SETFKEY: /* set function key string */
error = kbdd_ioctl(sc->kbd, cmd, data);
if (error == ENOIOCTL)
error = ENODEV;
return error;
#ifndef SC_NO_FONT_LOADING
case PIO_FONT8x8: /* set 8x8 dot font */
if (!ISFONTAVAIL(sc->adp->va_flags))
return ENXIO;
bcopy(data, sc->font_8, 8*256);
sc->fonts_loaded |= FONT_8;
/*
* FONT KLUDGE
* Always use the font page #0. XXX
* Don't load if the current font size is not 8x8.
*/
if (ISTEXTSC(sc->cur_scp) && (sc->cur_scp->font_size < 14))
sc_load_font(sc->cur_scp, 0, 8, 8, sc->font_8, 0, 256);
return 0;
case GIO_FONT8x8: /* get 8x8 dot font */
if (!ISFONTAVAIL(sc->adp->va_flags))
return ENXIO;
if (sc->fonts_loaded & FONT_8) {
bcopy(sc->font_8, data, 8*256);
return 0;
}
else
return ENXIO;
case PIO_FONT8x14: /* set 8x14 dot font */
if (!ISFONTAVAIL(sc->adp->va_flags))
return ENXIO;
bcopy(data, sc->font_14, 14*256);
sc->fonts_loaded |= FONT_14;
/*
* FONT KLUDGE
* Always use the font page #0. XXX
* Don't load if the current font size is not 8x14.
*/
if (ISTEXTSC(sc->cur_scp)
&& (sc->cur_scp->font_size >= 14)
&& (sc->cur_scp->font_size < 16))
sc_load_font(sc->cur_scp, 0, 14, 8, sc->font_14, 0, 256);
return 0;
case GIO_FONT8x14: /* get 8x14 dot font */
if (!ISFONTAVAIL(sc->adp->va_flags))
return ENXIO;
if (sc->fonts_loaded & FONT_14) {
bcopy(sc->font_14, data, 14*256);
return 0;
}
else
return ENXIO;
case PIO_FONT8x16: /* set 8x16 dot font */
if (!ISFONTAVAIL(sc->adp->va_flags))
return ENXIO;
bcopy(data, sc->font_16, 16*256);
sc->fonts_loaded |= FONT_16;
/*
* FONT KLUDGE
* Always use the font page #0. XXX
* Don't load if the current font size is not 8x16.
*/
if (ISTEXTSC(sc->cur_scp) && (sc->cur_scp->font_size >= 16))
sc_load_font(sc->cur_scp, 0, 16, 8, sc->font_16, 0, 256);
return 0;
case GIO_FONT8x16: /* get 8x16 dot font */
if (!ISFONTAVAIL(sc->adp->va_flags))
return ENXIO;
if (sc->fonts_loaded & FONT_16) {
bcopy(sc->font_16, data, 16*256);
return 0;
}
else
return ENXIO;
#endif /* SC_NO_FONT_LOADING */
default:
break;
}
return (ENOIOCTL);
}
static void
sc_cnprobe(struct consdev *cp)
{
int unit;
int flags;
cp->cn_pri = sc_get_cons_priority(&unit, &flags);
/* a video card is always required */
if (!scvidprobe(unit, flags, TRUE))
cp->cn_pri = CN_DEAD;
/* syscons will become console even when there is no keyboard */
sckbdprobe(unit, flags, TRUE);
if (cp->cn_pri == CN_DEAD)
return;
/* initialize required fields */
sprintf(cp->cn_name, "consolectl");
}
static void
sc_cninit(struct consdev *cp)
{
int unit;
int flags;
sc_get_cons_priority(&unit, &flags);
scinit(unit, flags | SC_KERNEL_CONSOLE);
sc_console_unit = unit;
sc_console = sc_get_stat(sc_get_softc(unit, SC_KERNEL_CONSOLE)->dev[0]);
sc_consptr = cp;
}
static void
sc_cnterm(struct consdev *cp)
{
/* we are not the kernel console any more, release everything */
if (sc_console_unit < 0)
return; /* shouldn't happen */
#if 0 /* XXX */
sc_clear_screen(sc_console);
sccnupdate(sc_console);
#endif
scterm(sc_console_unit, SC_KERNEL_CONSOLE);
sc_console_unit = -1;
sc_console = NULL;
}
static void
sc_cnputc(struct consdev *cd, int c)
{
u_char buf[1];
scr_stat *scp = sc_console;
void *save;
#ifndef SC_NO_HISTORY
struct tty *tp;
#endif /* !SC_NO_HISTORY */
int s;
/* assert(sc_console != NULL) */
#ifndef SC_NO_HISTORY
if (scp == scp->sc->cur_scp && scp->status & SLKED) {
scp->status &= ~SLKED;
update_kbd_state(scp, scp->status, SLKED);
if (scp->status & BUFFER_SAVED) {
if (!sc_hist_restore(scp))
sc_remove_cutmarking(scp);
scp->status &= ~BUFFER_SAVED;
scp->status |= CURSOR_ENABLED;
sc_draw_cursor_image(scp);
}
tp = SC_DEV(scp->sc, scp->index);
tty_lock(tp);
if (tty_opened(tp))
sctty_outwakeup(tp);
tty_unlock(tp);
}
#endif /* !SC_NO_HISTORY */
save = scp->ts;
if (kernel_console_ts != NULL)
scp->ts = kernel_console_ts;
buf[0] = c;
sc_puts(scp, buf, 1);
scp->ts = save;
s = spltty(); /* block sckbdevent and scrn_timer */
sccnupdate(scp);
splx(s);
}
static int
sc_cngetc(struct consdev *cd)
{
return sccngetch(SCGETC_NONBLOCK);
}
static int
sccngetch(int flags)
{
static struct fkeytab fkey;
static int fkeycp;
scr_stat *scp;
u_char *p;
int cur_mode;
int s = spltty(); /* block sckbdevent and scrn_timer while we poll */
int c;
/* assert(sc_console != NULL) */
/*
* Stop the screen saver and update the screen if necessary.
* What if we have been running in the screen saver code... XXX
*/
sc_touch_scrn_saver();
scp = sc_console->sc->cur_scp; /* XXX */
sccnupdate(scp);
if (fkeycp < fkey.len) {
splx(s);
return fkey.str[fkeycp++];
}
if (scp->sc->kbd == NULL) {
splx(s);
return -1;
}
/*
* Make sure the keyboard is accessible even when the kbd device
* driver is disabled.
*/
kbdd_enable(scp->sc->kbd);
/* we shall always use the keyboard in the XLATE mode here */
cur_mode = scp->kbd_mode;
scp->kbd_mode = K_XLATE;
kbdd_ioctl(scp->sc->kbd, KDSKBMODE, (caddr_t)&scp->kbd_mode);
kbdd_poll(scp->sc->kbd, TRUE);
c = scgetc(scp->sc, SCGETC_CN | flags);
kbdd_poll(scp->sc->kbd, FALSE);
scp->kbd_mode = cur_mode;
kbdd_ioctl(scp->sc->kbd, KDSKBMODE, (caddr_t)&scp->kbd_mode);
kbdd_disable(scp->sc->kbd);
splx(s);
switch (KEYFLAGS(c)) {
case 0: /* normal char */
return KEYCHAR(c);
case FKEY: /* function key */
p = kbdd_get_fkeystr(scp->sc->kbd, KEYCHAR(c), (size_t *)&fkeycp);
fkey.len = fkeycp;
if ((p != NULL) && (fkey.len > 0)) {
bcopy(p, fkey.str, fkey.len);
fkeycp = 1;
return fkey.str[0];
}
return c; /* XXX */
case NOKEY:
case ERRKEY:
default:
return -1;
}
/* NOT REACHED */
}
static void
sccnupdate(scr_stat *scp)
{
/* this is a cut-down version of scrn_timer()... */
if (scp->sc->font_loading_in_progress)
return;
if (debugger > 0 || panicstr || shutdown_in_progress) {
sc_touch_scrn_saver();
} else if (scp != scp->sc->cur_scp) {
return;
}
if (!run_scrn_saver)
scp->sc->flags &= ~SC_SCRN_IDLE;
#ifdef DEV_SPLASH
if ((saver_mode != CONS_LKM_SAVER) || !(scp->sc->flags & SC_SCRN_IDLE))
if (scp->sc->flags & SC_SCRN_BLANKED)
stop_scrn_saver(scp->sc, current_saver);
#endif
if (scp != scp->sc->cur_scp || scp->sc->blink_in_progress
|| scp->sc->switch_in_progress)
return;
/*
* FIXME: unlike scrn_timer(), we call scrn_update() from here even
* when write_in_progress is non-zero. XXX
*/
if (!ISGRAPHSC(scp) && !(scp->sc->flags & SC_SCRN_BLANKED))
scrn_update(scp, TRUE);
}
static void
scrn_timer(void *arg)
{
#ifndef PC98
static int kbd_interval = 0;
#endif
struct timeval tv;
sc_softc_t *sc;
scr_stat *scp;
int again;
int s;
again = (arg != NULL);
if (arg != NULL)
sc = (sc_softc_t *)arg;
else if (sc_console != NULL)
sc = sc_console->sc;
else
return;
/* don't do anything when we are performing some I/O operations */
if (sc->font_loading_in_progress) {
if (again)
timeout(scrn_timer, sc, hz / 10);
return;
}
s = spltty();
#ifndef PC98
if ((sc->kbd == NULL) && (sc->config & SC_AUTODETECT_KBD)) {
/* try to allocate a keyboard automatically */
if (++kbd_interval >= 25) {
sc->keyboard = sc_allocate_keyboard(sc, -1);
if (sc->keyboard >= 0) {
sc->kbd = kbd_get_keyboard(sc->keyboard);
kbdd_ioctl(sc->kbd, KDSKBMODE,
(caddr_t)&sc->cur_scp->kbd_mode);
update_kbd_state(sc->cur_scp, sc->cur_scp->status,
LOCK_MASK);
}
kbd_interval = 0;
}
}
#endif /* PC98 */
/* find the vty to update */
scp = sc->cur_scp;
/* should we stop the screen saver? */
getmicrouptime(&tv);
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)
sc->flags |= SC_SCRN_IDLE;
else
sc->flags &= ~SC_SCRN_IDLE;
} else {
sc->scrn_time_stamp = tv.tv_sec;
sc->flags &= ~SC_SCRN_IDLE;
if (scrn_blank_time > 0)
run_scrn_saver = TRUE;
}
#ifdef DEV_SPLASH
if ((saver_mode != CONS_LKM_SAVER) || !(sc->flags & SC_SCRN_IDLE))
if (sc->flags & SC_SCRN_BLANKED)
stop_scrn_saver(sc, current_saver);
#endif
/* should we just return ? */
if (sc->blink_in_progress || sc->switch_in_progress
|| sc->write_in_progress) {
if (again)
timeout(scrn_timer, sc, hz / 10);
splx(s);
return;
}
/* Update the screen */
scp = sc->cur_scp; /* cur_scp may have changed... */
if (!ISGRAPHSC(scp) && !(sc->flags & SC_SCRN_BLANKED))
scrn_update(scp, TRUE);
#ifdef DEV_SPLASH
/* should we activate the screen saver? */
if ((saver_mode == CONS_LKM_SAVER) && (sc->flags & SC_SCRN_IDLE))
if (!ISGRAPHSC(scp) || (sc->flags & SC_SCRN_BLANKED))
(*current_saver)(sc, TRUE);
#endif
if (again)
timeout(scrn_timer, sc, hz / 25);
splx(s);
}
static int
and_region(int *s1, int *e1, int s2, int e2)
{
if (*e1 < s2 || e2 < *s1)
return FALSE;
*s1 = imax(*s1, s2);
*e1 = imin(*e1, e2);
return TRUE;
}
static void
scrn_update(scr_stat *scp, int show_cursor)
{
int start;
int end;
int s;
int e;
/* assert(scp == scp->sc->cur_scp) */
SC_VIDEO_LOCK(scp->sc);
#ifndef SC_NO_CUTPASTE
/* remove the previous mouse pointer image if necessary */
if (scp->status & MOUSE_VISIBLE) {
s = scp->mouse_pos;
e = scp->mouse_pos + scp->xsize + 1;
if ((scp->status & (MOUSE_MOVED | MOUSE_HIDDEN))
|| and_region(&s, &e, scp->start, scp->end)
|| ((scp->status & CURSOR_ENABLED) &&
(scp->cursor_pos != scp->cursor_oldpos) &&
(and_region(&s, &e, scp->cursor_pos, scp->cursor_pos)
|| and_region(&s, &e, scp->cursor_oldpos, scp->cursor_oldpos)))) {
sc_remove_mouse_image(scp);
if (scp->end >= scp->xsize*scp->ysize)
scp->end = scp->xsize*scp->ysize - 1;
}
}
#endif /* !SC_NO_CUTPASTE */
#if 1
/* debug: XXX */
if (scp->end >= scp->xsize*scp->ysize) {
printf("scrn_update(): scp->end %d > size_of_screen!!\n", scp->end);
scp->end = scp->xsize*scp->ysize - 1;
}
if (scp->start < 0) {
printf("scrn_update(): scp->start %d < 0\n", scp->start);
scp->start = 0;
}
#endif
/* update screen image */
if (scp->start <= scp->end) {
if (scp->mouse_cut_end >= 0) {
/* there is a marked region for cut & paste */
if (scp->mouse_cut_start <= scp->mouse_cut_end) {
start = scp->mouse_cut_start;
end = scp->mouse_cut_end;
} else {
start = scp->mouse_cut_end;
end = scp->mouse_cut_start - 1;
}
s = start;
e = end;
/* does the cut-mark region overlap with the update region? */
if (and_region(&s, &e, scp->start, scp->end)) {
(*scp->rndr->draw)(scp, s, e - s + 1, TRUE);
s = 0;
e = start - 1;
if (and_region(&s, &e, scp->start, scp->end))
(*scp->rndr->draw)(scp, s, e - s + 1, FALSE);
s = end + 1;
e = scp->xsize*scp->ysize - 1;
if (and_region(&s, &e, scp->start, scp->end))
(*scp->rndr->draw)(scp, s, e - s + 1, FALSE);
} else {
(*scp->rndr->draw)(scp, scp->start,
scp->end - scp->start + 1, FALSE);
}
} else {
(*scp->rndr->draw)(scp, scp->start,
scp->end - scp->start + 1, FALSE);
}
}
/* we are not to show the cursor and the mouse pointer... */
if (!show_cursor) {
scp->end = 0;
scp->start = scp->xsize*scp->ysize - 1;
SC_VIDEO_UNLOCK(scp->sc);
return;
}
/* update cursor image */
if (scp->status & CURSOR_ENABLED) {
s = scp->start;
e = scp->end;
/* did cursor move since last time ? */
if (scp->cursor_pos != scp->cursor_oldpos) {
/* do we need to remove old cursor image ? */
if (!and_region(&s, &e, scp->cursor_oldpos, scp->cursor_oldpos))
sc_remove_cursor_image(scp);
sc_draw_cursor_image(scp);
} else {
if (and_region(&s, &e, scp->cursor_pos, scp->cursor_pos))
/* cursor didn't move, but has been overwritten */
sc_draw_cursor_image(scp);
else if (scp->curs_attr.flags & CONS_BLINK_CURSOR)
/* if it's a blinking cursor, update it */
(*scp->rndr->blink_cursor)(scp, scp->cursor_pos,
sc_inside_cutmark(scp,
scp->cursor_pos));
}
}
#ifndef SC_NO_CUTPASTE
/* update "pseudo" mouse pointer image */
if (scp->sc->flags & SC_MOUSE_ENABLED) {
if (!(scp->status & (MOUSE_VISIBLE | MOUSE_HIDDEN))) {
scp->status &= ~MOUSE_MOVED;
sc_draw_mouse_image(scp);
}
}
#endif /* SC_NO_CUTPASTE */
scp->end = 0;
scp->start = scp->xsize*scp->ysize - 1;
SC_VIDEO_UNLOCK(scp->sc);
}
#ifdef DEV_SPLASH
static int
scsplash_callback(int event, void *arg)
{
sc_softc_t *sc;
int error;
sc = (sc_softc_t *)arg;
switch (event) {
case SPLASH_INIT:
if (add_scrn_saver(scsplash_saver) == 0) {
sc->flags &= ~SC_SAVER_FAILED;
run_scrn_saver = TRUE;
if (cold && !(boothowto & RB_VERBOSE)) {
scsplash_stick(TRUE);
(*current_saver)(sc, TRUE);
}
}
return 0;
case SPLASH_TERM:
if (current_saver == scsplash_saver) {
scsplash_stick(FALSE);
error = remove_scrn_saver(scsplash_saver);
if (error)
return error;
}
return 0;
default:
return EINVAL;
}
}
static void
scsplash_saver(sc_softc_t *sc, int show)
{
static int busy = FALSE;
scr_stat *scp;
if (busy)
return;
busy = TRUE;
scp = sc->cur_scp;
if (show) {
if (!(sc->flags & SC_SAVER_FAILED)) {
if (!(sc->flags & SC_SCRN_BLANKED))
set_scrn_saver_mode(scp, -1, NULL, 0);
switch (splash(sc->adp, TRUE)) {
case 0: /* succeeded */
break;
case EAGAIN: /* try later */
restore_scrn_saver_mode(scp, FALSE);
sc_touch_scrn_saver(); /* XXX */
break;
default:
sc->flags |= SC_SAVER_FAILED;
scsplash_stick(FALSE);
restore_scrn_saver_mode(scp, TRUE);
printf("scsplash_saver(): failed to put up the image\n");
break;
}
}
} else if (!sticky_splash) {
if ((sc->flags & SC_SCRN_BLANKED) && (splash(sc->adp, FALSE) == 0))
restore_scrn_saver_mode(scp, TRUE);
}
busy = FALSE;
}
static int
add_scrn_saver(void (*this_saver)(sc_softc_t *, int))
{
#if 0
int error;
if (current_saver != none_saver) {
error = remove_scrn_saver(current_saver);
if (error)
return error;
}
#endif
if (current_saver != none_saver)
return EBUSY;
run_scrn_saver = FALSE;
saver_mode = CONS_LKM_SAVER;
current_saver = this_saver;
return 0;
}
static int
remove_scrn_saver(void (*this_saver)(sc_softc_t *, int))
{
if (current_saver != this_saver)
return EINVAL;
#if 0
/*
* In order to prevent `current_saver' from being called by
* the timeout routine `scrn_timer()' while we manipulate
* the saver list, we shall set `current_saver' to `none_saver'
* before stopping the current saver, rather than blocking by `splXX()'.
*/
current_saver = none_saver;
if (scrn_blanked)
stop_scrn_saver(this_saver);
#endif
/* unblank all blanked screens */
wait_scrn_saver_stop(NULL);
if (scrn_blanked)
return EBUSY;
current_saver = none_saver;
return 0;
}
static int
set_scrn_saver_mode(scr_stat *scp, int mode, u_char *pal, int border)
{
int s;
/* assert(scp == scp->sc->cur_scp) */
s = spltty();
if (!ISGRAPHSC(scp))
sc_remove_cursor_image(scp);
scp->splash_save_mode = scp->mode;
scp->splash_save_status = scp->status & (GRAPHICS_MODE | PIXEL_MODE);
scp->status &= ~(GRAPHICS_MODE | PIXEL_MODE);
scp->status |= (UNKNOWN_MODE | SAVER_RUNNING);
scp->sc->flags |= SC_SCRN_BLANKED;
++scrn_blanked;
splx(s);
if (mode < 0)
return 0;
scp->mode = mode;
if (set_mode(scp) == 0) {
if (scp->sc->adp->va_info.vi_flags & V_INFO_GRAPHICS)
scp->status |= GRAPHICS_MODE;
#ifndef SC_NO_PALETTE_LOADING
if (pal != NULL)
vidd_load_palette(scp->sc->adp, pal);
#endif
sc_set_border(scp, border);
return 0;
} else {
s = spltty();
scp->mode = scp->splash_save_mode;
scp->status &= ~(UNKNOWN_MODE | SAVER_RUNNING);
scp->status |= scp->splash_save_status;
splx(s);
return 1;
}
}
static int
restore_scrn_saver_mode(scr_stat *scp, int changemode)
{
int mode;
int status;
int s;
/* assert(scp == scp->sc->cur_scp) */
s = spltty();
mode = scp->mode;
status = scp->status;
scp->mode = scp->splash_save_mode;
scp->status &= ~(UNKNOWN_MODE | SAVER_RUNNING);
scp->status |= scp->splash_save_status;
scp->sc->flags &= ~SC_SCRN_BLANKED;
if (!changemode) {
if (!ISGRAPHSC(scp))
sc_draw_cursor_image(scp);
--scrn_blanked;
splx(s);
return 0;
}
if (set_mode(scp) == 0) {
#ifndef SC_NO_PALETTE_LOADING
vidd_load_palette(scp->sc->adp, scp->sc->palette);
#endif
--scrn_blanked;
splx(s);
return 0;
} else {
scp->mode = mode;
scp->status = status;
splx(s);
return 1;
}
}
static void
stop_scrn_saver(sc_softc_t *sc, void (*saver)(sc_softc_t *, int))
{
(*saver)(sc, FALSE);
run_scrn_saver = FALSE;
/* the screen saver may have chosen not to stop after all... */
if (sc->flags & SC_SCRN_BLANKED)
return;
mark_all(sc->cur_scp);
if (sc->delayed_next_scr)
sc_switch_scr(sc, sc->delayed_next_scr - 1);
if (debugger == 0)
wakeup(&scrn_blanked);
}
static int
wait_scrn_saver_stop(sc_softc_t *sc)
{
int error = 0;
while (scrn_blanked > 0) {
run_scrn_saver = FALSE;
if (sc && !(sc->flags & SC_SCRN_BLANKED)) {
error = 0;
break;
}
error = tsleep(&scrn_blanked, PZERO | PCATCH, "scrsav", 0);
if ((error != 0) && (error != ERESTART))
break;
}
run_scrn_saver = FALSE;
return error;
}
#endif /* DEV_SPLASH */
void
sc_touch_scrn_saver(void)
{
scsplash_stick(FALSE);
run_scrn_saver = FALSE;
}
int
sc_switch_scr(sc_softc_t *sc, u_int next_scr)
{
scr_stat *cur_scp;
struct tty *tp;
struct proc *p;
int s;
DPRINTF(5, ("sc0: sc_switch_scr() %d ", next_scr + 1));
if (sc->cur_scp == NULL)
return (0);
/* prevent switch if previously requested */
if (sc->flags & SC_SCRN_VTYLOCK) {
sc_bell(sc->cur_scp, sc->cur_scp->bell_pitch,
sc->cur_scp->bell_duration);
return EPERM;
}
/* delay switch if the screen is blanked or being updated */
if ((sc->flags & SC_SCRN_BLANKED) || sc->write_in_progress
|| sc->blink_in_progress) {
sc->delayed_next_scr = next_scr + 1;
sc_touch_scrn_saver();
DPRINTF(5, ("switch delayed\n"));
return 0;
}
sc->delayed_next_scr = 0;
s = spltty();
cur_scp = sc->cur_scp;
/* we are in the middle of the vty switching process... */
if (sc->switch_in_progress
&& (cur_scp->smode.mode == VT_PROCESS)
&& cur_scp->proc) {
p = pfind(cur_scp->pid);
if (cur_scp->proc != p) {
if (p)
PROC_UNLOCK(p);
/*
* The controlling process has died!!. Do some clean up.
* NOTE:`cur_scp->proc' and `cur_scp->smode.mode'
* are not reset here yet; they will be cleared later.
*/
DPRINTF(5, ("cur_scp controlling process %d died, ",
cur_scp->pid));
if (cur_scp->status & SWITCH_WAIT_REL) {
/*
* Force the previous switch to finish, but return now
* with error.
*/
DPRINTF(5, ("reset WAIT_REL, "));
finish_vt_rel(cur_scp, TRUE, &s);
splx(s);
DPRINTF(5, ("finishing previous switch\n"));
return EINVAL;
} else if (cur_scp->status & SWITCH_WAIT_ACQ) {
/* let's assume screen switch has been completed. */
DPRINTF(5, ("reset WAIT_ACQ, "));
finish_vt_acq(cur_scp);
} else {
/*
* We are in between screen release and acquisition, and
* reached here via scgetc() or scrn_timer() which has
* interrupted exchange_scr(). Don't do anything stupid.
*/
DPRINTF(5, ("waiting nothing, "));
}
} else {
if (p)
PROC_UNLOCK(p);
/*
* The controlling process is alive, but not responding...
* It is either buggy or it may be just taking time.
* The following code is a gross kludge to cope with this
* problem for which there is no clean solution. XXX
*/
if (cur_scp->status & SWITCH_WAIT_REL) {
switch (sc->switch_in_progress++) {
case 1:
break;
case 2:
DPRINTF(5, ("sending relsig again, "));
signal_vt_rel(cur_scp);
break;
case 3:
break;
case 4:
default:
/*
* Act as if the controlling program returned
* VT_FALSE.
*/
DPRINTF(5, ("force reset WAIT_REL, "));
finish_vt_rel(cur_scp, FALSE, &s);
splx(s);
DPRINTF(5, ("act as if VT_FALSE was seen\n"));
return EINVAL;
}
} else if (cur_scp->status & SWITCH_WAIT_ACQ) {
switch (sc->switch_in_progress++) {
case 1:
break;
case 2:
DPRINTF(5, ("sending acqsig again, "));
signal_vt_acq(cur_scp);
break;
case 3:
break;
case 4:
default:
/* clear the flag and finish the previous switch */
DPRINTF(5, ("force reset WAIT_ACQ, "));
finish_vt_acq(cur_scp);
break;
}
}
}
}
/*
* Return error if an invalid argument is given, or vty switch
* is still in progress.
*/
if ((next_scr < sc->first_vty) || (next_scr >= sc->first_vty + sc->vtys)
|| sc->switch_in_progress) {
splx(s);
sc_bell(cur_scp, bios_value.bell_pitch, BELL_DURATION);
DPRINTF(5, ("error 1\n"));
return EINVAL;
}
/*
* Don't allow switching away from the graphics mode vty
* if the switch mode is VT_AUTO, unless the next vty is the same
* as the current or the current vty has been closed (but showing).
*/
tp = SC_DEV(sc, cur_scp->index);
if ((cur_scp->index != next_scr)
&& tty_opened(tp)
&& (cur_scp->smode.mode == VT_AUTO)
&& ISGRAPHSC(cur_scp)) {
splx(s);
sc_bell(cur_scp, bios_value.bell_pitch, BELL_DURATION);
DPRINTF(5, ("error, graphics mode\n"));
return EINVAL;
}
/*
* Is the wanted vty open? Don't allow switching to a closed vty.
* If we are in DDB, don't switch to a vty in the VT_PROCESS mode.
* Note that we always allow the user to switch to the kernel
* console even if it is closed.
*/
if ((sc_console == NULL) || (next_scr != sc_console->index)) {
tp = SC_DEV(sc, next_scr);
if (!tty_opened(tp)) {
splx(s);
sc_bell(cur_scp, bios_value.bell_pitch, BELL_DURATION);
DPRINTF(5, ("error 2, requested vty isn't open!\n"));
return EINVAL;
}
if ((debugger > 0) && (SC_STAT(tp)->smode.mode == VT_PROCESS)) {
splx(s);
DPRINTF(5, ("error 3, requested vty is in the VT_PROCESS mode\n"));
return EINVAL;
}
}
/* this is the start of vty switching process... */
++sc->switch_in_progress;
sc->old_scp = cur_scp;
sc->new_scp = sc_get_stat(SC_DEV(sc, next_scr));
if (sc->new_scp == sc->old_scp) {
sc->switch_in_progress = 0;
/*
* XXX wakeup() locks the scheduler lock which will hang if
* the lock is in an in-between state, e.g., when we stop at
* a breakpoint at fork_exit. It has always been wrong to call
* wakeup() when the debugger is active. In RELENG_4, wakeup()
* is supposed to be locked by splhigh(), but the debugger may
* be invoked at splhigh().
*/
if (debugger == 0)
wakeup(VTY_WCHAN(sc,next_scr));
splx(s);
DPRINTF(5, ("switch done (new == old)\n"));
return 0;
}
/* has controlling process died? */
vt_proc_alive(sc->old_scp);
vt_proc_alive(sc->new_scp);
/* wait for the controlling process to release the screen, if necessary */
if (signal_vt_rel(sc->old_scp)) {
splx(s);
return 0;
}
/* go set up the new vty screen */
splx(s);
exchange_scr(sc);
s = spltty();
/* wake up processes waiting for this vty */
if (debugger == 0)
wakeup(VTY_WCHAN(sc,next_scr));
/* wait for the controlling process to acknowledge, if necessary */
if (signal_vt_acq(sc->cur_scp)) {
splx(s);
return 0;
}
sc->switch_in_progress = 0;
if (sc->unit == sc_console_unit)
cnavailable(sc_consptr, TRUE);
splx(s);
DPRINTF(5, ("switch done\n"));
return 0;
}
static int
do_switch_scr(sc_softc_t *sc, int s)
{
vt_proc_alive(sc->new_scp);
splx(s);
exchange_scr(sc);
s = spltty();
/* sc->cur_scp == sc->new_scp */
wakeup(VTY_WCHAN(sc,sc->cur_scp->index));
/* wait for the controlling process to acknowledge, if necessary */
if (!signal_vt_acq(sc->cur_scp)) {
sc->switch_in_progress = 0;
if (sc->unit == sc_console_unit)
cnavailable(sc_consptr, TRUE);
}
return s;
}
static int
vt_proc_alive(scr_stat *scp)
{
struct proc *p;
if (scp->proc) {
if ((p = pfind(scp->pid)) != NULL)
PROC_UNLOCK(p);
if (scp->proc == p)
return TRUE;
scp->proc = NULL;
scp->smode.mode = VT_AUTO;
DPRINTF(5, ("vt controlling process %d died\n", scp->pid));
}
return FALSE;
}
static int
signal_vt_rel(scr_stat *scp)
{
if (scp->smode.mode != VT_PROCESS)
return FALSE;
scp->status |= SWITCH_WAIT_REL;
PROC_LOCK(scp->proc);
psignal(scp->proc, scp->smode.relsig);
PROC_UNLOCK(scp->proc);
DPRINTF(5, ("sending relsig to %d\n", scp->pid));
return TRUE;
}
static int
signal_vt_acq(scr_stat *scp)
{
if (scp->smode.mode != VT_PROCESS)
return FALSE;
if (scp->sc->unit == sc_console_unit)
cnavailable(sc_consptr, FALSE);
scp->status |= SWITCH_WAIT_ACQ;
PROC_LOCK(scp->proc);
psignal(scp->proc, scp->smode.acqsig);
PROC_UNLOCK(scp->proc);
DPRINTF(5, ("sending acqsig to %d\n", scp->pid));
return TRUE;
}
static int
finish_vt_rel(scr_stat *scp, int release, int *s)
{
if (scp == scp->sc->old_scp && scp->status & SWITCH_WAIT_REL) {
scp->status &= ~SWITCH_WAIT_REL;
if (release)
*s = do_switch_scr(scp->sc, *s);
else
scp->sc->switch_in_progress = 0;
return 0;
}
return EINVAL;
}
static int
finish_vt_acq(scr_stat *scp)
{
if (scp == scp->sc->new_scp && scp->status & SWITCH_WAIT_ACQ) {
scp->status &= ~SWITCH_WAIT_ACQ;
scp->sc->switch_in_progress = 0;
return 0;
}
return EINVAL;
}
static void
exchange_scr(sc_softc_t *sc)
{
scr_stat *scp;
/* save the current state of video and keyboard */
sc_move_cursor(sc->old_scp, sc->old_scp->xpos, sc->old_scp->ypos);
if (!ISGRAPHSC(sc->old_scp))
sc_remove_cursor_image(sc->old_scp);
if (sc->old_scp->kbd_mode == K_XLATE)
save_kbd_state(sc->old_scp);
/* set up the video for the new screen */
scp = sc->cur_scp = sc->new_scp;
#ifdef PC98
if (sc->old_scp->mode != scp->mode || ISUNKNOWNSC(sc->old_scp) || ISUNKNOWNSC(sc->new_scp))
#else
if (sc->old_scp->mode != scp->mode || ISUNKNOWNSC(sc->old_scp))
#endif
set_mode(scp);
#ifndef __sparc64__
else
sc_vtb_init(&scp->scr, VTB_FRAMEBUFFER, scp->xsize, scp->ysize,
(void *)sc->adp->va_window, FALSE);
#endif
scp->status |= MOUSE_HIDDEN;
sc_move_cursor(scp, scp->xpos, scp->ypos);
if (!ISGRAPHSC(scp))
sc_set_cursor_image(scp);
#ifndef SC_NO_PALETTE_LOADING
if (ISGRAPHSC(sc->old_scp))
vidd_load_palette(sc->adp, sc->palette);
#endif
sc_set_border(scp, scp->border);
/* set up the keyboard for the new screen */
if (sc->old_scp->kbd_mode != scp->kbd_mode)
kbdd_ioctl(sc->kbd, KDSKBMODE, (caddr_t)&scp->kbd_mode);
update_kbd_state(scp, scp->status, LOCK_MASK);
mark_all(scp);
}
void
sc_puts(scr_stat *scp, u_char *buf, int len)
{
int need_unlock = 0;
#ifdef DEV_SPLASH
/* make screensaver happy */
if (!sticky_splash && scp == scp->sc->cur_scp && !sc_saver_keyb_only)
run_scrn_saver = FALSE;
#endif
if (scp->tsw) {
if (!kdb_active && !mtx_owned(&scp->scr_lock)) {
need_unlock = 1;
mtx_lock_spin(&scp->scr_lock);
}
(*scp->tsw->te_puts)(scp, buf, len);
if (need_unlock)
mtx_unlock_spin(&scp->scr_lock);
}
if (scp->sc->delayed_next_scr)
sc_switch_scr(scp->sc, scp->sc->delayed_next_scr - 1);
}
void
sc_draw_cursor_image(scr_stat *scp)
{
/* assert(scp == scp->sc->cur_scp); */
SC_VIDEO_LOCK(scp->sc);
(*scp->rndr->draw_cursor)(scp, scp->cursor_pos,
scp->curs_attr.flags & CONS_BLINK_CURSOR, TRUE,
sc_inside_cutmark(scp, scp->cursor_pos));
scp->cursor_oldpos = scp->cursor_pos;
SC_VIDEO_UNLOCK(scp->sc);
}
void
sc_remove_cursor_image(scr_stat *scp)
{
/* assert(scp == scp->sc->cur_scp); */
SC_VIDEO_LOCK(scp->sc);
(*scp->rndr->draw_cursor)(scp, scp->cursor_oldpos,
scp->curs_attr.flags & CONS_BLINK_CURSOR, FALSE,
sc_inside_cutmark(scp, scp->cursor_oldpos));
SC_VIDEO_UNLOCK(scp->sc);
}
static void
update_cursor_image(scr_stat *scp)
{
/* assert(scp == scp->sc->cur_scp); */
sc_remove_cursor_image(scp);
sc_set_cursor_image(scp);
sc_draw_cursor_image(scp);
}
void
sc_set_cursor_image(scr_stat *scp)
{
scp->curs_attr.flags = scp->curr_curs_attr.flags;
if (scp->curs_attr.flags & CONS_HIDDEN_CURSOR) {
/* hidden cursor is internally represented as zero-height underline */
scp->curs_attr.flags = CONS_CHAR_CURSOR;
scp->curs_attr.base = scp->curs_attr.height = 0;
} else if (scp->curs_attr.flags & CONS_CHAR_CURSOR) {
scp->curs_attr.base = imin(scp->curr_curs_attr.base,
scp->font_size - 1);
scp->curs_attr.height = imin(scp->curr_curs_attr.height,
scp->font_size - scp->curs_attr.base);
} else { /* block cursor */
scp->curs_attr.base = 0;
scp->curs_attr.height = scp->font_size;
}
/* assert(scp == scp->sc->cur_scp); */
SC_VIDEO_LOCK(scp->sc);
(*scp->rndr->set_cursor)(scp, scp->curs_attr.base, scp->curs_attr.height,
scp->curs_attr.flags & CONS_BLINK_CURSOR);
SC_VIDEO_UNLOCK(scp->sc);
}
static void
change_cursor_shape(scr_stat *scp, int flags, int base, int height)
{
if ((scp == scp->sc->cur_scp) && !ISGRAPHSC(scp))
sc_remove_cursor_image(scp);
if (base >= 0)
scp->curr_curs_attr.base = base;
if (height >= 0)
scp->curr_curs_attr.height = height;
if (flags & CONS_RESET_CURSOR)
scp->curr_curs_attr = scp->dflt_curs_attr;
else
scp->curr_curs_attr.flags = flags & CONS_CURSOR_ATTRS;
if ((scp == scp->sc->cur_scp) && !ISGRAPHSC(scp)) {
sc_set_cursor_image(scp);
sc_draw_cursor_image(scp);
}
}
void
sc_change_cursor_shape(scr_stat *scp, int flags, int base, int height)
{
sc_softc_t *sc;
struct tty *tp;
int s;
int i;
s = spltty();
if ((flags != -1) && (flags & CONS_LOCAL_CURSOR)) {
/* local (per vty) change */
change_cursor_shape(scp, flags, base, height);
splx(s);
return;
}
/* global change */
sc = scp->sc;
if (base >= 0)
sc->curs_attr.base = base;
if (height >= 0)
sc->curs_attr.height = height;
if (flags != -1) {
if (flags & CONS_RESET_CURSOR)
sc->curs_attr = sc->dflt_curs_attr;
else
sc->curs_attr.flags = flags & CONS_CURSOR_ATTRS;
}
for (i = sc->first_vty; i < sc->first_vty + sc->vtys; ++i) {
if ((tp = SC_DEV(sc, i)) == NULL)
continue;
if ((scp = sc_get_stat(tp)) == NULL)
continue;
scp->dflt_curs_attr = sc->curs_attr;
change_cursor_shape(scp, CONS_RESET_CURSOR, -1, -1);
}
splx(s);
}
static void
scinit(int unit, int flags)
{
/*
* When syscons is being initialized as the kernel console, malloc()
* is not yet functional, because various kernel structures has not been
* fully initialized yet. Therefore, we need to declare the following
* static buffers for the console. This is less than ideal,
* but is necessry evil for the time being. XXX
*/
#ifdef PC98
static u_short sc_buffer[ROW*COL*2];/* XXX */
#else
static u_short sc_buffer[ROW*COL]; /* XXX */
#endif
#ifndef SC_NO_FONT_LOADING
static u_char font_8[256*8];
static u_char font_14[256*14];
static u_char font_16[256*16];
#endif
sc_softc_t *sc;
scr_stat *scp;
video_adapter_t *adp;
int col;
int row;
int i;
/* one time initialization */
if (init_done == COLD)
sc_get_bios_values(&bios_value);
init_done = WARM;
/*
* Allocate resources. Even if we are being called for the second
* time, we must allocate them again, because they might have
* disappeared...
*/
sc = sc_get_softc(unit, flags & SC_KERNEL_CONSOLE);
if ((sc->flags & SC_INIT_DONE) == 0)
SC_VIDEO_LOCKINIT(sc);
adp = NULL;
if (sc->adapter >= 0) {
vid_release(sc->adp, (void *)&sc->adapter);
adp = sc->adp;
sc->adp = NULL;
}
if (sc->keyboard >= 0) {
DPRINTF(5, ("sc%d: releasing kbd%d\n", unit, sc->keyboard));
i = kbd_release(sc->kbd, (void *)&sc->keyboard);
DPRINTF(5, ("sc%d: kbd_release returned %d\n", unit, i));
if (sc->kbd != NULL) {
DPRINTF(5, ("sc%d: kbd != NULL!, index:%d, unit:%d, flags:0x%x\n",
unit, sc->kbd->kb_index, sc->kbd->kb_unit, sc->kbd->kb_flags));
}
sc->kbd = NULL;
}
sc->adapter = vid_allocate("*", unit, (void *)&sc->adapter);
sc->adp = vid_get_adapter(sc->adapter);
/* assert((sc->adapter >= 0) && (sc->adp != NULL)) */
sc->keyboard = sc_allocate_keyboard(sc, unit);
DPRINTF(1, ("sc%d: keyboard %d\n", unit, sc->keyboard));
sc->kbd = kbd_get_keyboard(sc->keyboard);
if (sc->kbd != NULL) {
DPRINTF(1, ("sc%d: kbd index:%d, unit:%d, flags:0x%x\n",
unit, sc->kbd->kb_index, sc->kbd->kb_unit, sc->kbd->kb_flags));
}
if (!(sc->flags & SC_INIT_DONE) || (adp != sc->adp)) {
sc->initial_mode = sc->adp->va_initial_mode;
#ifndef SC_NO_FONT_LOADING
if (flags & SC_KERNEL_CONSOLE) {
sc->font_8 = font_8;
sc->font_14 = font_14;
sc->font_16 = font_16;
} else if (sc->font_8 == NULL) {
/* assert(sc_malloc) */
sc->font_8 = malloc(sizeof(font_8), M_DEVBUF, M_WAITOK);
sc->font_14 = malloc(sizeof(font_14), M_DEVBUF, M_WAITOK);
sc->font_16 = malloc(sizeof(font_16), M_DEVBUF, M_WAITOK);
}
#endif
/* extract the hardware cursor location and hide the cursor for now */
vidd_read_hw_cursor(sc->adp, &col, &row);
vidd_set_hw_cursor(sc->adp, -1, -1);
/* set up the first console */
sc->first_vty = unit*MAXCONS;
sc->vtys = MAXCONS; /* XXX: should be configurable */
if (flags & SC_KERNEL_CONSOLE) {
/*
* Set up devs structure but don't use it yet, calling make_dev()
* might panic kernel. Wait for sc_attach_unit() to actually
* create the devices.
*/
sc->dev = main_devs;
scp = &main_console;
init_scp(sc, sc->first_vty, scp);
sc_vtb_init(&scp->vtb, VTB_MEMORY, scp->xsize, scp->ysize,
(void *)sc_buffer, FALSE);
if (sc_init_emulator(scp, SC_DFLT_TERM))
sc_init_emulator(scp, "*");
(*scp->tsw->te_default_attr)(scp,
kernel_default.std_color,
kernel_default.rev_color);
} else {
/* assert(sc_malloc) */
sc->dev = malloc(sizeof(struct tty *)*sc->vtys, M_DEVBUF,
M_WAITOK|M_ZERO);
sc->dev[0] = sc_alloc_tty(0, "ttyv%r", unit * MAXCONS);
scp = alloc_scp(sc, sc->first_vty);
SC_STAT(sc->dev[0]) = scp;
}
sc->cur_scp = scp;
#ifndef __sparc64__
/* copy screen to temporary buffer */
sc_vtb_init(&scp->scr, VTB_FRAMEBUFFER, scp->xsize, scp->ysize,
(void *)scp->sc->adp->va_window, FALSE);
if (ISTEXTSC(scp))
sc_vtb_copy(&scp->scr, 0, &scp->vtb, 0, scp->xsize*scp->ysize);
#endif
/* move cursors to the initial positions */
if (col >= scp->xsize)
col = 0;
if (row >= scp->ysize)
row = scp->ysize - 1;
scp->xpos = col;
scp->ypos = row;
scp->cursor_pos = scp->cursor_oldpos = row*scp->xsize + col;
if (bios_value.cursor_end < scp->font_size)
sc->dflt_curs_attr.base = scp->font_size -
bios_value.cursor_end - 1;
else
sc->dflt_curs_attr.base = 0;
i = bios_value.cursor_end - bios_value.cursor_start + 1;
sc->dflt_curs_attr.height = imin(i, scp->font_size);
sc->dflt_curs_attr.flags = 0;
sc->curs_attr = sc->dflt_curs_attr;
scp->curr_curs_attr = scp->dflt_curs_attr = sc->curs_attr;
#ifndef SC_NO_SYSMOUSE
sc_mouse_move(scp, scp->xpixel/2, scp->ypixel/2);
#endif
if (!ISGRAPHSC(scp)) {
sc_set_cursor_image(scp);
sc_draw_cursor_image(scp);
}
/* save font and palette */
#ifndef SC_NO_FONT_LOADING
sc->fonts_loaded = 0;
if (ISFONTAVAIL(sc->adp->va_flags)) {
#ifdef SC_DFLT_FONT
bcopy(dflt_font_8, sc->font_8, sizeof(dflt_font_8));
bcopy(dflt_font_14, sc->font_14, sizeof(dflt_font_14));
bcopy(dflt_font_16, sc->font_16, sizeof(dflt_font_16));
sc->fonts_loaded = FONT_16 | FONT_14 | FONT_8;
if (scp->font_size < 14) {
sc_load_font(scp, 0, 8, 8, sc->font_8, 0, 256);
} else if (scp->font_size >= 16) {
sc_load_font(scp, 0, 16, 8, sc->font_16, 0, 256);
} else {
sc_load_font(scp, 0, 14, 8, sc->font_14, 0, 256);
}
#else /* !SC_DFLT_FONT */
if (scp->font_size < 14) {
sc_save_font(scp, 0, 8, 8, sc->font_8, 0, 256);
sc->fonts_loaded = FONT_8;
} else if (scp->font_size >= 16) {
sc_save_font(scp, 0, 16, 8, sc->font_16, 0, 256);
sc->fonts_loaded = FONT_16;
} else {
sc_save_font(scp, 0, 14, 8, sc->font_14, 0, 256);
sc->fonts_loaded = FONT_14;
}
#endif /* SC_DFLT_FONT */
/* FONT KLUDGE: always use the font page #0. XXX */
sc_show_font(scp, 0);
}
#endif /* !SC_NO_FONT_LOADING */
#ifndef SC_NO_PALETTE_LOADING
vidd_save_palette(sc->adp, sc->palette);
#endif
#ifdef DEV_SPLASH
if (!(sc->flags & SC_SPLASH_SCRN)) {
/* we are ready to put up the splash image! */
splash_init(sc->adp, scsplash_callback, sc);
sc->flags |= SC_SPLASH_SCRN;
}
#endif
}
/* the rest is not necessary, if we have done it once */
if (sc->flags & SC_INIT_DONE)
return;
/* initialize mapscrn arrays to a one to one map */
for (i = 0; i < sizeof(sc->scr_map); i++)
sc->scr_map[i] = sc->scr_rmap[i] = i;
#ifdef PC98
sc->scr_map[0x5c] = (u_char)0xfc; /* for backslash */
#endif
sc->flags |= SC_INIT_DONE;
}
static void
scterm(int unit, int flags)
{
sc_softc_t *sc;
scr_stat *scp;
sc = sc_get_softc(unit, flags & SC_KERNEL_CONSOLE);
if (sc == NULL)
return; /* shouldn't happen */
#ifdef DEV_SPLASH
/* this console is no longer available for the splash screen */
if (sc->flags & SC_SPLASH_SCRN) {
splash_term(sc->adp);
sc->flags &= ~SC_SPLASH_SCRN;
}
#endif
#if 0 /* XXX */
/* move the hardware cursor to the upper-left corner */
vidd_set_hw_cursor(sc->adp, 0, 0);
#endif
/* release the keyboard and the video card */
if (sc->keyboard >= 0)
kbd_release(sc->kbd, &sc->keyboard);
if (sc->adapter >= 0)
vid_release(sc->adp, &sc->adapter);
/* stop the terminal emulator, if any */
scp = sc_get_stat(sc->dev[0]);
if (scp->tsw)
(*scp->tsw->te_term)(scp, &scp->ts);
if (scp->ts != NULL)
free(scp->ts, M_DEVBUF);
mtx_destroy(&scp->scr_lock);
/* clear the structure */
if (!(flags & SC_KERNEL_CONSOLE)) {
/* XXX: We need delete_dev() for this */
free(sc->dev, M_DEVBUF);
#if 0
/* XXX: We need a ttyunregister for this */
free(sc->tty, M_DEVBUF);
#endif
#ifndef SC_NO_FONT_LOADING
free(sc->font_8, M_DEVBUF);
free(sc->font_14, M_DEVBUF);
free(sc->font_16, M_DEVBUF);
#endif
/* XXX vtb, history */
}
bzero(sc, sizeof(*sc));
sc->keyboard = -1;
sc->adapter = -1;
}
static void
scshutdown(void *arg, int howto)
{
/* assert(sc_console != NULL) */
sc_touch_scrn_saver();
if (!cold && sc_console
&& sc_console->sc->cur_scp->smode.mode == VT_AUTO
&& sc_console->smode.mode == VT_AUTO)
sc_switch_scr(sc_console->sc, sc_console->index);
shutdown_in_progress = TRUE;
}
int
sc_clean_up(scr_stat *scp)
{
#ifdef DEV_SPLASH
int error;
#endif
if (scp->sc->flags & SC_SCRN_BLANKED) {
sc_touch_scrn_saver();
#ifdef DEV_SPLASH
if ((error = wait_scrn_saver_stop(scp->sc)))
return error;
#endif
}
scp->status |= MOUSE_HIDDEN;
sc_remove_mouse_image(scp);
sc_remove_cutmarking(scp);
return 0;
}
void
sc_alloc_scr_buffer(scr_stat *scp, int wait, int discard)
{
sc_vtb_t new;
sc_vtb_t old;
old = scp->vtb;
sc_vtb_init(&new, VTB_MEMORY, scp->xsize, scp->ysize, NULL, wait);
if (!discard && (old.vtb_flags & VTB_VALID)) {
/* retain the current cursor position and buffer contants */
scp->cursor_oldpos = scp->cursor_pos;
/*
* This works only if the old buffer has the same size as or larger
* than the new one. XXX
*/
sc_vtb_copy(&old, 0, &new, 0, scp->xsize*scp->ysize);
scp->vtb = new;
} else {
scp->vtb = new;
sc_vtb_destroy(&old);
}
#ifndef SC_NO_SYSMOUSE
/* move the mouse cursor at the center of the screen */
sc_mouse_move(scp, scp->xpixel / 2, scp->ypixel / 2);
#endif
}
static scr_stat
*alloc_scp(sc_softc_t *sc, int vty)
{
scr_stat *scp;
/* assert(sc_malloc) */
scp = (scr_stat *)malloc(sizeof(scr_stat), M_DEVBUF, M_WAITOK);
init_scp(sc, vty, scp);
sc_alloc_scr_buffer(scp, TRUE, TRUE);
if (sc_init_emulator(scp, SC_DFLT_TERM))
sc_init_emulator(scp, "*");
#ifndef SC_NO_CUTPASTE
sc_alloc_cut_buffer(scp, TRUE);
#endif
#ifndef SC_NO_HISTORY
sc_alloc_history_buffer(scp, 0, 0, TRUE);
#endif
return scp;
}
static void
init_scp(sc_softc_t *sc, int vty, scr_stat *scp)
{
video_info_t info;
bzero(scp, sizeof(*scp));
scp->index = vty;
scp->sc = sc;
scp->status = 0;
scp->mode = sc->initial_mode;
vidd_get_info(sc->adp, scp->mode, &info);
if (info.vi_flags & V_INFO_GRAPHICS) {
scp->status |= GRAPHICS_MODE;
scp->xpixel = info.vi_width;
scp->ypixel = info.vi_height;
scp->xsize = info.vi_width/info.vi_cwidth;
scp->ysize = info.vi_height/info.vi_cheight;
scp->font_size = 0;
scp->font = NULL;
} else {
scp->xsize = info.vi_width;
scp->ysize = info.vi_height;
scp->xpixel = scp->xsize*info.vi_cwidth;
scp->ypixel = scp->ysize*info.vi_cheight;
scp->font_size = info.vi_cheight;
scp->font_width = info.vi_cwidth;
if (info.vi_cheight < 14) {
#ifndef SC_NO_FONT_LOADING
scp->font = sc->font_8;
#else
scp->font = NULL;
#endif
} else if (info.vi_cheight >= 16) {
#ifndef SC_NO_FONT_LOADING
scp->font = sc->font_16;
#else
scp->font = NULL;
#endif
} else {
#ifndef SC_NO_FONT_LOADING
scp->font = sc->font_14;
#else
scp->font = NULL;
#endif
}
}
sc_vtb_init(&scp->vtb, VTB_MEMORY, 0, 0, NULL, FALSE);
#ifndef __sparc64__
sc_vtb_init(&scp->scr, VTB_FRAMEBUFFER, 0, 0, NULL, FALSE);
#endif
scp->xoff = scp->yoff = 0;
scp->xpos = scp->ypos = 0;
scp->start = scp->xsize * scp->ysize - 1;
scp->end = 0;
scp->tsw = NULL;
scp->ts = NULL;
scp->rndr = NULL;
scp->border = (SC_NORM_ATTR >> 4) & 0x0f;
scp->curr_curs_attr = scp->dflt_curs_attr = sc->curs_attr;
scp->mouse_cut_start = scp->xsize*scp->ysize;
scp->mouse_cut_end = -1;
scp->mouse_signal = 0;
scp->mouse_pid = 0;
scp->mouse_proc = NULL;
scp->kbd_mode = K_XLATE;
scp->bell_pitch = bios_value.bell_pitch;
scp->bell_duration = BELL_DURATION;
scp->status |= (bios_value.shift_state & NLKED);
scp->status |= CURSOR_ENABLED | MOUSE_HIDDEN;
scp->pid = 0;
scp->proc = NULL;
scp->smode.mode = VT_AUTO;
scp->history = NULL;
scp->history_pos = 0;
scp->history_size = 0;
mtx_init(&scp->scr_lock, "scrlock", NULL, MTX_SPIN);
}
int
sc_init_emulator(scr_stat *scp, char *name)
{
sc_term_sw_t *sw;
sc_rndr_sw_t *rndr;
void *p;
int error;
if (name == NULL) /* if no name is given, use the current emulator */
sw = scp->tsw;
else /* ...otherwise find the named emulator */
sw = sc_term_match(name);
if (sw == NULL)
return EINVAL;
rndr = NULL;
if (strcmp(sw->te_renderer, "*") != 0) {
rndr = sc_render_match(scp, sw->te_renderer,
scp->status & (GRAPHICS_MODE | PIXEL_MODE));
}
if (rndr == NULL) {
rndr = sc_render_match(scp, scp->sc->adp->va_name,
scp->status & (GRAPHICS_MODE | PIXEL_MODE));
if (rndr == NULL)
return ENODEV;
}
if (sw == scp->tsw) {
error = (*sw->te_init)(scp, &scp->ts, SC_TE_WARM_INIT);
scp->rndr = rndr;
scp->rndr->init(scp);
sc_clear_screen(scp);
/* assert(error == 0); */
return error;
}
if (sc_malloc && (sw->te_size > 0))
p = malloc(sw->te_size, M_DEVBUF, M_NOWAIT);
else
p = NULL;
error = (*sw->te_init)(scp, &p, SC_TE_COLD_INIT);
if (error)
return error;
if (scp->tsw)
(*scp->tsw->te_term)(scp, &scp->ts);
if (scp->ts != NULL)
free(scp->ts, M_DEVBUF);
scp->tsw = sw;
scp->ts = p;
scp->rndr = rndr;
scp->rndr->init(scp);
/* XXX */
(*sw->te_default_attr)(scp, user_default.std_color, user_default.rev_color);
sc_clear_screen(scp);
return 0;
}
/*
* scgetc(flags) - get character from keyboard.
* If flags & SCGETC_CN, then avoid harmful side effects.
* If flags & SCGETC_NONBLOCK, then wait until a key is pressed, else
* return NOKEY if there is nothing there.
*/
static u_int
scgetc(sc_softc_t *sc, u_int flags)
{
scr_stat *scp;
#ifndef SC_NO_HISTORY
struct tty *tp;
#endif
u_int c;
int this_scr;
int f;
int i;
if (sc->kbd == NULL)
return NOKEY;
next_code:
#if 1
/* I don't like this, but... XXX */
if (flags & SCGETC_CN)
sccnupdate(sc->cur_scp);
#endif
scp = sc->cur_scp;
/* first see if there is something in the keyboard port */
for (;;) {
c = kbdd_read_char(sc->kbd, !(flags & SCGETC_NONBLOCK));
if (c == ERRKEY) {
if (!(flags & SCGETC_CN))
sc_bell(scp, bios_value.bell_pitch, BELL_DURATION);
} else if (c == NOKEY)
return c;
else
break;
}
/* make screensaver happy */
if (!(c & RELKEY))
sc_touch_scrn_saver();
if (!(flags & SCGETC_CN))
random_harvest(&c, sizeof(c), 1, 0, RANDOM_KEYBOARD);
if (scp->kbd_mode != K_XLATE)
return KEYCHAR(c);
/* if scroll-lock pressed allow history browsing */
if (!ISGRAPHSC(scp) && scp->history && scp->status & SLKED) {
scp->status &= ~CURSOR_ENABLED;
sc_remove_cursor_image(scp);
#ifndef SC_NO_HISTORY
if (!(scp->status & BUFFER_SAVED)) {
scp->status |= BUFFER_SAVED;
sc_hist_save(scp);
}
switch (c) {
/* FIXME: key codes */
case SPCLKEY | FKEY | F(49): /* home key */
sc_remove_cutmarking(scp);
sc_hist_home(scp);
goto next_code;
case SPCLKEY | FKEY | F(57): /* end key */
sc_remove_cutmarking(scp);
sc_hist_end(scp);
goto next_code;
case SPCLKEY | FKEY | F(50): /* up arrow key */
sc_remove_cutmarking(scp);
if (sc_hist_up_line(scp))
if (!(flags & SCGETC_CN))
sc_bell(scp, bios_value.bell_pitch, BELL_DURATION);
goto next_code;
case SPCLKEY | FKEY | F(58): /* down arrow key */
sc_remove_cutmarking(scp);
if (sc_hist_down_line(scp))
if (!(flags & SCGETC_CN))
sc_bell(scp, bios_value.bell_pitch, BELL_DURATION);
goto next_code;
case SPCLKEY | FKEY | F(51): /* page up key */
sc_remove_cutmarking(scp);
for (i=0; i<scp->ysize; i++)
if (sc_hist_up_line(scp)) {
if (!(flags & SCGETC_CN))
sc_bell(scp, bios_value.bell_pitch, BELL_DURATION);
break;
}
goto next_code;
case SPCLKEY | FKEY | F(59): /* page down key */
sc_remove_cutmarking(scp);
for (i=0; i<scp->ysize; i++)
if (sc_hist_down_line(scp)) {
if (!(flags & SCGETC_CN))
sc_bell(scp, bios_value.bell_pitch, BELL_DURATION);
break;
}
goto next_code;
}
#endif /* SC_NO_HISTORY */
}
/*
* Process and consume special keys here. Return a plain char code
* or a char code with the META flag or a function key code.
*/
if (c & RELKEY) {
/* key released */
/* goto next_code */
} else {
/* key pressed */
if (c & SPCLKEY) {
c &= ~SPCLKEY;
switch (KEYCHAR(c)) {
/* LOCKING KEYS */
case NLK: case CLK: case ALK:
break;
case SLK:
kbdd_ioctl(sc->kbd, KDGKBSTATE, (caddr_t)&f);
if (f & SLKED) {
scp->status |= SLKED;
} else {
if (scp->status & SLKED) {
scp->status &= ~SLKED;
#ifndef SC_NO_HISTORY
if (scp->status & BUFFER_SAVED) {
if (!sc_hist_restore(scp))
sc_remove_cutmarking(scp);
scp->status &= ~BUFFER_SAVED;
scp->status |= CURSOR_ENABLED;
sc_draw_cursor_image(scp);
}
tp = SC_DEV(sc, scp->index);
if (tty_opened(tp))
sctty_outwakeup(tp);
#endif
}
}
break;
case PASTE:
#ifndef SC_NO_CUTPASTE
sc_mouse_paste(scp);
#endif
break;
/* NON-LOCKING KEYS */
case NOP:
case LSH: case RSH: case LCTR: case RCTR:
case LALT: case RALT: case ASH: case META:
break;
case BTAB:
if (!(sc->flags & SC_SCRN_BLANKED))
return c;
break;
case SPSC:
#ifdef DEV_SPLASH
/* force activatation/deactivation of the screen saver */
if (!(sc->flags & SC_SCRN_BLANKED)) {
run_scrn_saver = TRUE;
sc->scrn_time_stamp -= scrn_blank_time;
}
if (cold) {
/*
* While devices are being probed, the screen saver need
* to be invoked explictly. XXX
*/
if (sc->flags & SC_SCRN_BLANKED) {
scsplash_stick(FALSE);
stop_scrn_saver(sc, current_saver);
} else {
if (!ISGRAPHSC(scp)) {
scsplash_stick(TRUE);
(*current_saver)(sc, TRUE);
}
}
}
#endif /* DEV_SPLASH */
break;
case RBT:
#ifndef SC_DISABLE_REBOOT
if (enable_reboot)
shutdown_nice(0);
#endif
break;
case HALT:
#ifndef SC_DISABLE_REBOOT
if (enable_reboot)
shutdown_nice(RB_HALT);
#endif
break;
case PDWN:
#ifndef SC_DISABLE_REBOOT
if (enable_reboot)
shutdown_nice(RB_HALT|RB_POWEROFF);
#endif
break;
case SUSP:
power_pm_suspend(POWER_SLEEP_STATE_SUSPEND);
break;
case STBY:
power_pm_suspend(POWER_SLEEP_STATE_STANDBY);
break;
case DBG:
#ifndef SC_DISABLE_KDBKEY
if (enable_kdbkey)
kdb_enter(KDB_WHY_BREAK, "manual escape to debugger");
#endif
break;
case PNC:
if (enable_panic_key)
panic("Forced by the panic key");
break;
case NEXT:
this_scr = scp->index;
for (i = (this_scr - sc->first_vty + 1)%sc->vtys;
sc->first_vty + i != this_scr;
i = (i + 1)%sc->vtys) {
struct tty *tp = SC_DEV(sc, sc->first_vty + i);
if (tty_opened(tp)) {
sc_switch_scr(scp->sc, sc->first_vty + i);
break;
}
}
break;
case PREV:
this_scr = scp->index;
for (i = (this_scr - sc->first_vty + sc->vtys - 1)%sc->vtys;
sc->first_vty + i != this_scr;
i = (i + sc->vtys - 1)%sc->vtys) {
struct tty *tp = SC_DEV(sc, sc->first_vty + i);
if (tty_opened(tp)) {
sc_switch_scr(scp->sc, sc->first_vty + i);
break;
}
}
break;
default:
if (KEYCHAR(c) >= F_SCR && KEYCHAR(c) <= L_SCR) {
sc_switch_scr(scp->sc, sc->first_vty + KEYCHAR(c) - F_SCR);
break;
}
/* assert(c & FKEY) */
if (!(sc->flags & SC_SCRN_BLANKED))
return c;
break;
}
/* goto next_code */
} else {
/* regular keys (maybe MKEY is set) */
if (!(sc->flags & SC_SCRN_BLANKED))
return c;
}
}
goto next_code;
}
static int
sctty_mmap(struct tty *tp, vm_offset_t offset, vm_paddr_t *paddr, int nprot)
{
scr_stat *scp;
scp = sc_get_stat(tp);
if (scp != scp->sc->cur_scp)
return -1;
return vidd_mmap(scp->sc->adp, offset, paddr, nprot);
}
static int
save_kbd_state(scr_stat *scp)
{
int state;
int error;
error = kbdd_ioctl(scp->sc->kbd, KDGKBSTATE, (caddr_t)&state);
if (error == ENOIOCTL)
error = ENODEV;
if (error == 0) {
scp->status &= ~LOCK_MASK;
scp->status |= state;
}
return error;
}
static int
update_kbd_state(scr_stat *scp, int new_bits, int mask)
{
int state;
int error;
if (mask != LOCK_MASK) {
error = kbdd_ioctl(scp->sc->kbd, KDGKBSTATE, (caddr_t)&state);
if (error == ENOIOCTL)
error = ENODEV;
if (error)
return error;
state &= ~mask;
state |= new_bits & mask;
} else {
state = new_bits & LOCK_MASK;
}
error = kbdd_ioctl(scp->sc->kbd, KDSKBSTATE, (caddr_t)&state);
if (error == ENOIOCTL)
error = ENODEV;
return error;
}
static int
update_kbd_leds(scr_stat *scp, int which)
{
int error;
which &= LOCK_MASK;
error = kbdd_ioctl(scp->sc->kbd, KDSETLED, (caddr_t)&which);
if (error == ENOIOCTL)
error = ENODEV;
return error;
}
int
set_mode(scr_stat *scp)
{
video_info_t info;
/* reject unsupported mode */
if (vidd_get_info(scp->sc->adp, scp->mode, &info))
return 1;
/* if this vty is not currently showing, do nothing */
if (scp != scp->sc->cur_scp)
return 0;
/* setup video hardware for the given mode */
vidd_set_mode(scp->sc->adp, scp->mode);
scp->rndr->init(scp);
#ifndef __sparc64__
sc_vtb_init(&scp->scr, VTB_FRAMEBUFFER, scp->xsize, scp->ysize,
(void *)scp->sc->adp->va_window, FALSE);
#endif
#ifndef SC_NO_FONT_LOADING
/* load appropriate font */
if (!(scp->status & GRAPHICS_MODE)) {
if (!(scp->status & PIXEL_MODE) && ISFONTAVAIL(scp->sc->adp->va_flags)) {
if (scp->font_size < 14) {
if (scp->sc->fonts_loaded & FONT_8)
sc_load_font(scp, 0, 8, 8, scp->sc->font_8, 0, 256);
} else if (scp->font_size >= 16) {
if (scp->sc->fonts_loaded & FONT_16)
sc_load_font(scp, 0, 16, 8, scp->sc->font_16, 0, 256);
} else {
if (scp->sc->fonts_loaded & FONT_14)
sc_load_font(scp, 0, 14, 8, scp->sc->font_14, 0, 256);
}
/*
* FONT KLUDGE:
* This is an interim kludge to display correct font.
* Always use the font page #0 on the video plane 2.
* Somehow we cannot show the font in other font pages on
* some video cards... XXX
*/
sc_show_font(scp, 0);
}
mark_all(scp);
}
#endif /* !SC_NO_FONT_LOADING */
sc_set_border(scp, scp->border);
sc_set_cursor_image(scp);
return 0;
}
void
sc_set_border(scr_stat *scp, int color)
{
SC_VIDEO_LOCK(scp->sc);
(*scp->rndr->draw_border)(scp, color);
SC_VIDEO_UNLOCK(scp->sc);
}
#ifndef SC_NO_FONT_LOADING
void
sc_load_font(scr_stat *scp, int page, int size, int width, u_char *buf,
int base, int count)
{
sc_softc_t *sc;
sc = scp->sc;
sc->font_loading_in_progress = TRUE;
vidd_load_font(sc->adp, page, size, width, buf, base, count);
sc->font_loading_in_progress = FALSE;
}
void
sc_save_font(scr_stat *scp, int page, int size, int width, u_char *buf,
int base, int count)
{
sc_softc_t *sc;
sc = scp->sc;
sc->font_loading_in_progress = TRUE;
vidd_save_font(sc->adp, page, size, width, buf, base, count);
sc->font_loading_in_progress = FALSE;
}
void
sc_show_font(scr_stat *scp, int page)
{
vidd_show_font(scp->sc->adp, page);
}
#endif /* !SC_NO_FONT_LOADING */
void
sc_paste(scr_stat *scp, u_char *p, int count)
{
struct tty *tp;
u_char *rmap;
tp = SC_DEV(scp->sc, scp->sc->cur_scp->index);
if (!tty_opened(tp))
return;
rmap = scp->sc->scr_rmap;
for (; count > 0; --count)
ttydisc_rint(tp, rmap[*p++], 0);
ttydisc_rint_done(tp);
}
void
sc_bell(scr_stat *scp, int pitch, int duration)
{
if (cold || shutdown_in_progress || !enable_bell)
return;
if (scp != scp->sc->cur_scp && (scp->sc->flags & SC_QUIET_BELL))
return;
if (scp->sc->flags & SC_VISUAL_BELL) {
if (scp->sc->blink_in_progress)
return;
scp->sc->blink_in_progress = 3;
if (scp != scp->sc->cur_scp)
scp->sc->blink_in_progress += 2;
blink_screen(scp->sc->cur_scp);
} else if (duration != 0 && pitch != 0) {
if (scp != scp->sc->cur_scp)
pitch *= 2;
sysbeep(1193182 / pitch, duration);
}
}
static void
blink_screen(void *arg)
{
scr_stat *scp = arg;
struct tty *tp;
if (ISGRAPHSC(scp) || (scp->sc->blink_in_progress <= 1)) {
scp->sc->blink_in_progress = 0;
mark_all(scp);
tp = SC_DEV(scp->sc, scp->index);
if (tty_opened(tp))
sctty_outwakeup(tp);
if (scp->sc->delayed_next_scr)
sc_switch_scr(scp->sc, scp->sc->delayed_next_scr - 1);
}
else {
(*scp->rndr->draw)(scp, 0, scp->xsize*scp->ysize,
scp->sc->blink_in_progress & 1);
scp->sc->blink_in_progress--;
timeout(blink_screen, scp, hz / 10);
}
}
/*
* Until sc_attach_unit() gets called no dev structures will be available
* to store the per-screen current status. This is the case when the
* kernel is initially booting and needs access to its console. During
* this early phase of booting the console's current status is kept in
* one statically defined scr_stat structure, and any pointers to the
* dev structures will be NULL.
*/
static scr_stat *
sc_get_stat(struct tty *tp)
{
if (tp == NULL)
return (&main_console);
return (SC_STAT(tp));
}
/*
* Allocate active keyboard. Try to allocate "kbdmux" keyboard first, and,
* if found, add all non-busy keyboards to "kbdmux". Otherwise look for
* any keyboard.
*/
static int
sc_allocate_keyboard(sc_softc_t *sc, int unit)
{
int idx0, idx;
keyboard_t *k0, *k;
keyboard_info_t ki;
idx0 = kbd_allocate("kbdmux", -1, (void *)&sc->keyboard, sckbdevent, sc);
if (idx0 != -1) {
k0 = kbd_get_keyboard(idx0);
for (idx = kbd_find_keyboard2("*", -1, 0);
idx != -1;
idx = kbd_find_keyboard2("*", -1, idx + 1)) {
k = kbd_get_keyboard(idx);
if (idx == idx0 || KBD_IS_BUSY(k))
continue;
bzero(&ki, sizeof(ki));
strcpy(ki.kb_name, k->kb_name);
ki.kb_unit = k->kb_unit;
kbdd_ioctl(k0, KBADDKBD, (caddr_t) &ki);
}
} else
idx0 = kbd_allocate("*", unit, (void *)&sc->keyboard, sckbdevent, sc);
return (idx0);
}
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