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freebsd/sys/dev/syscons/syscons.c
Alfred Perlstein 44956c9863 Remove M_TRYWAIT/M_WAITOK/M_WAIT. Callers should use 0. 
Merge M_NOWAIT/M_DONTWAIT into a single flag M_NOWAIT.
2003-01-21 08:56:16 +00:00

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/*-
* Copyright (c) 1992-1998 Søren Schmidt
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer,
* 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.
*
* $FreeBSD$
*/
#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/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/proc.h>
#include <sys/random.h>
#include <sys/reboot.h>
#include <sys/signalvar.h>
#include <sys/sysctl.h>
#include <sys/tty.h>
#include <sys/power.h>
#include <machine/clock.h>
#include <machine/pc/display.h>
#ifdef __i386__
#include <machine/psl.h>
#include <machine/apm_bios.h>
#include <machine/frame.h>
#endif
#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 void *kernel_console_ts;
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 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");
#if !defined(SC_NO_FONT_LOADING) && defined(SC_DFLT_FONT)
#include "font.h"
#endif
d_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, "");
#define SC_CONSOLECTL 255
#define VIRTUAL_TTY(sc, x) (SC_DEV((sc), (x)) != NULL ? \
SC_DEV((sc), (x))->si_tty : NULL)
#define ISTTYOPEN(tp) ((tp) && ((tp)->t_state & TS_ISOPEN))
static int debugger;
/* prototypes */
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(dev_t dev);
static kbd_callback_func_t sckbdevent;
static int scparam(struct tty *tp, struct termios *t);
static void scstart(struct tty *tp);
static void scinit(int unit, int flags);
#if __i386__ || __ia64__
static void scterm(int unit, int flags);
#endif
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;
#define CDEV_MAJOR 12
static cn_probe_t sccnprobe;
static cn_init_t sccninit;
static cn_getc_t sccngetc;
static cn_checkc_t sccncheckc;
static cn_putc_t sccnputc;
static cn_dbctl_t sccndbctl;
static cn_term_t sccnterm;
#if __alpha__
void sccnattach(void);
#endif
CONS_DRIVER(sc, sccnprobe, sccninit, sccnterm, sccngetc, sccncheckc, sccnputc,
sccndbctl);
static d_open_t scopen;
static d_close_t scclose;
static d_read_t scread;
static d_ioctl_t scioctl;
static d_mmap_t scmmap;
static struct cdevsw sc_cdevsw = {
/* open */ scopen,
/* close */ scclose,
/* read */ scread,
/* write */ ttywrite,
/* ioctl */ scioctl,
/* poll */ ttypoll,
/* mmap */ scmmap,
/* strategy */ nostrategy,
/* name */ "sc",
/* maj */ CDEV_MAJOR,
/* dump */ nodump,
/* psize */ nopsize,
/* flags */ D_TTY | D_KQFILTER,
/* kqfilter */ ttykqfilter
};
int
sc_probe_unit(int unit, int flags)
{
if (!scvidprobe(unit, flags, FALSE)) {
if (bootverbose)
printf("sc%d: no video adapter found.\n", 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];
}
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;
dev_t dev;
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, 0);
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_STAT(sc->dev[0]);
if (sc_console == NULL) /* sc_console_unit < 0 */
sc_console = scp;
#ifdef SC_PIXEL_MODE
if ((sc->config & SC_VESA800X600)
&& ((*vidsw[sc->adapter]->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);
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 */
kbd_ioctl(sc->kbd, KDSKBMODE, (caddr_t)&scp->kbd_mode);
update_kbd_state(scp, scp->status, LOCK_MASK);
printf("sc%d: %s <%d virtual consoles, flags=0x%x>\n",
unit, adapter_name(sc->adp), sc->vtys, sc->config);
if (bootverbose) {
printf("sc%d:", 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++) {
dev = make_dev(&sc_cdevsw, vc + unit * MAXCONS,
UID_ROOT, GID_WHEEL, 0600, "ttyv%r", vc + unit * MAXCONS);
sc->dev[vc] = dev;
/*
* The first vty already has struct tty and scr_stat initialized
* in scinit(). The other vtys will have these structs when
* first opened.
*/
}
dev = make_dev(&sc_cdevsw, SC_CONSOLECTL,
UID_ROOT, GID_WHEEL, 0600, "consolectl");
dev->si_tty = sc_console_tty = ttymalloc(sc_console_tty);
SC_STAT(dev) = 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(dev_t dev)
{
int vty = SC_VTY(dev);
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
scopen(dev_t dev, int flag, int mode, struct thread *td)
{
int unit = scdevtounit(dev);
sc_softc_t *sc;
struct tty *tp;
scr_stat *scp;
keyarg_t key;
int error;
DPRINTF(5, ("scopen: dev:%d,%d, unit:%d, vty:%d\n",
major(dev), minor(dev), unit, SC_VTY(dev)));
sc = sc_get_softc(unit, (sc_console_unit == unit) ? SC_KERNEL_CONSOLE : 0);
if (sc == NULL)
return ENXIO;
tp = dev->si_tty = ttymalloc(dev->si_tty);
tp->t_oproc = scstart;
tp->t_param = scparam;
tp->t_stop = nottystop;
tp->t_dev = dev;
if (!ISTTYOPEN(tp)) {
ttychars(tp);
/* Use the current setting of the <-- key as default VERASE. */
/* If the Delete key is preferable, an stty is necessary */
if (sc->kbd != NULL) {
key.keynum = KEYCODE_BS;
kbd_ioctl(sc->kbd, GIO_KEYMAPENT, (caddr_t)&key);
tp->t_cc[VERASE] = key.key.map[0];
}
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;
scparam(tp, &tp->t_termios);
(*linesw[tp->t_line].l_modem)(tp, 1);
}
else
if (tp->t_state & TS_XCLUDE && suser(td))
return(EBUSY);
error = (*linesw[tp->t_line].l_open)(dev, tp);
scp = SC_STAT(dev);
if (scp == NULL) {
scp = SC_STAT(dev) = alloc_scp(sc, SC_VTY(dev));
if (ISGRAPHSC(scp))
sc_set_pixel_mode(scp, NULL, COL, ROW, 16);
}
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 error;
}
static int
scclose(dev_t dev, int flag, int mode, struct thread *td)
{
struct tty *tp = dev->si_tty;
scr_stat *scp;
int s;
if (SC_VTY(dev) != SC_CONSOLECTL) {
scp = SC_STAT(tp->t_dev);
/* 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))
cons_unavail = FALSE;
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, "));
#if not_yet_done
if (scp == &main_console) {
scp->pid = 0;
scp->proc = NULL;
scp->smode.mode = VT_AUTO;
}
else {
sc_vtb_destroy(&scp->vtb);
sc_vtb_destroy(&scp->scr);
sc_free_history_buffer(scp, scp->ysize);
SC_STAT(dev) = 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)
kbd_ioctl(scp->sc->kbd, KDSKBMODE, (caddr_t)&scp->kbd_mode);
DPRINTF(5, ("done.\n"));
}
spltty();
(*linesw[tp->t_line].l_close)(tp, flag);
ttyclose(tp);
spl0();
return(0);
}
static int
scread(dev_t dev, struct uio *uio, int flag)
{
if (!sc_saver_keyb_only)
sc_touch_scrn_saver();
return ttyread(dev, uio, flag);
}
static int
sckbdevent(keyboard_t *thiskbd, int event, void *arg)
{
sc_softc_t *sc;
struct tty *cur_tty;
int c;
size_t len;
u_char *cp;
sc = (sc_softc_t *)arg;
/* assert(thiskbd == sc->kbd) */
switch (event) {
case KBDIO_KEYINPUT:
break;
case KBDIO_UNLOADING:
sc->kbd = NULL;
sc->keyboard = -1;
kbd_release(thiskbd, (void *)&sc->keyboard);
return 0;
default:
return EINVAL;
}
/*
* 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 = VIRTUAL_TTY(sc, sc->cur_scp->index);
if (!ISTTYOPEN(cur_tty)) {
cur_tty = sc_console_tty;
if (!ISTTYOPEN(cur_tty))
continue;
}
if ((*sc->cur_scp->tsw->te_input)(sc->cur_scp, c, cur_tty))
continue;
switch (KEYFLAGS(c)) {
case 0x0000: /* normal key */
(*linesw[cur_tty->t_line].l_rint)(KEYCHAR(c), cur_tty);
break;
case FKEY: /* function key, return string */
cp = kbd_get_fkeystr(thiskbd, KEYCHAR(c), &len);
if (cp != NULL) {
while (len-- > 0)
(*linesw[cur_tty->t_line].l_rint)(*cp++, cur_tty);
}
break;
case MKEY: /* meta is active, prepend ESC */
(*linesw[cur_tty->t_line].l_rint)(0x1b, cur_tty);
(*linesw[cur_tty->t_line].l_rint)(KEYCHAR(c), cur_tty);
break;
case BKEY: /* backtab fixed sequence (esc [ Z) */
(*linesw[cur_tty->t_line].l_rint)(0x1b, cur_tty);
(*linesw[cur_tty->t_line].l_rint)('[', cur_tty);
(*linesw[cur_tty->t_line].l_rint)('Z', cur_tty);
break;
}
}
sc->cur_scp->status |= MOUSE_HIDDEN;
return 0;
}
static int
scparam(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;
}
static int
scioctl(dev_t dev, u_long cmd, caddr_t data, int flag, struct thread *td)
{
int error;
int i;
struct tty *tp;
sc_softc_t *sc;
scr_stat *scp;
int s;
tp = dev->si_tty;
/* If there is a user_ioctl function call that first */
if (sc_user_ioctl) {
error = (*sc_user_ioctl)(dev, cmd, data, flag, td);
if (error != ENOIOCTL)
return error;
}
error = sc_vid_ioctl(tp, cmd, data, flag, td);
if (error != ENOIOCTL)
return error;
#ifndef SC_NO_HISTORY
error = sc_hist_ioctl(tp, cmd, data, flag, td);
if (error != ENOIOCTL)
return error;
#endif
#ifndef SC_NO_SYSMOUSE
error = sc_mouse_ioctl(tp, cmd, data, flag, td);
if (error != ENOIOCTL)
return error;
#endif
scp = SC_STAT(tp->t_dev);
/* 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, flag, 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) & 0x01)
sc->flags |= SC_VISUAL_BELL;
else
sc->flags &= ~SC_VISUAL_BELL;
if ((*(int *)data) & 0x02)
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;
s = spltty();
if (ISGRAPHSC(scp)) {
splx(s);
return EOPNOTSUPP;
}
hist_rsz = (scp->history != NULL) ? scp->history->vtb_rows : 0;
if ((ptr->x + ptr->xsize) > scp->xsize ||
(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 */
(vm_offset_t)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;
(vm_offset_t)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, ("sc%d: VT_SETMODE ", 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))
cons_unavail = FALSE;
/* 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))
cons_unavail = TRUE;
}
splx(s);
DPRINTF(5, ("\n"));
return 0;
}
case VT_GETMODE: /* get screen switcher mode */
bcopy(&scp->smode, data, sizeof(struct vt_mode));
return 0;
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, ("sc%d: VT_FALSE\n", sc->unit));
break;
case VT_TRUE: /* user has released screen, go on */
if ((error = finish_vt_rel(scp, TRUE, &s)) == 0)
DPRINTF(5, ("sc%d: VT_TRUE\n", sc->unit));
break;
case VT_ACKACQ: /* acquire acknowledged, switch completed */
if ((error = finish_vt_acq(scp)) == 0)
DPRINTF(5, ("sc%d: VT_ACKACQ\n", 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 = VIRTUAL_TTY(sc, i);
if (!ISTTYOPEN(tp)) {
*(int *)data = i + 1;
return 0;
}
}
return EINVAL;
case VT_ACTIVATE: /* switch to screen *data */
i = (*(int *)data == 0) ? scp->index : (*(int *)data - 1);
s = spltty();
sc_clean_up(sc->cur_scp);
splx(s);
return sc_switch_scr(sc, i);
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;
s = spltty();
error = sc_clean_up(sc->cur_scp);
splx(s);
if (error)
return error;
scp = SC_STAT(SC_DEV(sc, i));
if (scp == scp->sc->cur_scp)
return 0;
while ((error=tsleep((caddr_t)&scp->smode, PZERO|PCATCH,
"waitvt", 0)) == ERESTART) ;
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 = suser(td);
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;
#endif
return 0;
case KDDISABIO: /* disallow io operations (default) */
#ifdef __i386__
td->td_frame->tf_eflags &= ~PSL_IOPL;
#endif
return 0;
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 = kbd_ioctl(sc->kbd, cmd, data);
if (error == ENOIOCTL)
error = ENODEV;
return error;
case KDSETRAD: /* set keyboard repeat & delay rates (old) */
if (*(int *)data & ~0x7f)
return EINVAL;
error = kbd_ioctl(sc->kbd, cmd, data);
if (error == ENOIOCTL)
error = ENODEV;
return error;
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)
kbd_ioctl(sc->kbd, cmd, data);
return 0;
default:
return EINVAL;
}
/* NOT REACHED */
case KDGKBMODE: /* get keyboard mode */
*(int *)data = scp->kbd_mode;
return 0;
case KDGKBINFO:
error = kbd_ioctl(sc->kbd, cmd, data);
if (error == ENOIOCTL)
error = ENODEV;
return error;
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;
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 = kbd_ioctl(sc->kbd, cmd, data);
if (error == ENOIOCTL) {
/* always return something? XXX */
*(int *)data = 0;
}
return 0;
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 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;
kbd_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 = kbd_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, 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, 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, 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;
}
error = (*linesw[tp->t_line].l_ioctl)(tp, cmd, data, flag, td);
if (error != ENOIOCTL)
return(error);
error = ttioctl(tp, cmd, data, flag);
if (error != ENOIOCTL)
return(error);
return(ENOTTY);
}
static void
scstart(struct tty *tp)
{
struct clist *rbp;
int s, len;
u_char buf[PCBURST];
scr_stat *scp = SC_STAT(tp->t_dev);
if (scp->status & SLKED || scp->sc->blink_in_progress)
return;
s = spltty();
if (!(tp->t_state & (TS_TIMEOUT | TS_BUSY | TS_TTSTOP))) {
tp->t_state |= TS_BUSY;
rbp = &tp->t_outq;
while (rbp->c_cc) {
len = q_to_b(rbp, buf, PCBURST);
splx(s);
sc_puts(scp, buf, len);
s = spltty();
}
tp->t_state &= ~TS_BUSY;
ttwwakeup(tp);
}
splx(s);
}
static void
sccnprobe(struct consdev *cp)
{
#if __i386__ || __ia64__
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 */
cp->cn_dev = makedev(CDEV_MAJOR, SC_CONSOLECTL);
#endif /* __i386__ || __ia64__ */
#if __alpha__
/*
* alpha use sccnattach() rather than cnprobe()/cninit()/cnterm()
* interface to install the console. Always return CN_DEAD from
* here.
*/
cp->cn_pri = CN_DEAD;
#endif /* __alpha__ */
}
static void
sccninit(struct consdev *cp)
{
#if __i386__ || __ia64__
int unit;
int flags;
sc_get_cons_priority(&unit, &flags);
scinit(unit, flags | SC_KERNEL_CONSOLE);
sc_console_unit = unit;
sc_console = SC_STAT(sc_get_softc(unit, SC_KERNEL_CONSOLE)->dev[0]);
#endif /* __i386__ */
#if __alpha__
/* SHOULDN'T REACH HERE */
#endif /* __alpha__ */
}
static void
sccnterm(struct consdev *cp)
{
/* we are not the kernel console any more, release everything */
if (sc_console_unit < 0)
return; /* shouldn't happen */
#if __i386__ || __ia64__
#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;
#endif /* __i386__ */
#if __alpha__
/* do nothing XXX */
#endif /* __alpha__ */
}
#ifdef __alpha__
void
sccnattach(void)
{
static struct consdev consdev;
int unit;
int flags;
bcopy(&sc_consdev, &consdev, sizeof(sc_consdev));
consdev.cn_pri = sc_get_cons_priority(&unit, &flags);
/* a video card is always required */
if (!scvidprobe(unit, flags, TRUE))
consdev.cn_pri = CN_DEAD;
/* alpha doesn't allow the console being without a keyboard... Why? */
if (!sckbdprobe(unit, flags, TRUE))
consdev.cn_pri = CN_DEAD;
if (consdev.cn_pri == CN_DEAD)
return;
scinit(unit, flags | SC_KERNEL_CONSOLE);
sc_console_unit = unit;
sc_console = SC_STAT(sc_get_softc(unit, SC_KERNEL_CONSOLE)->dev[0]);
consdev.cn_dev = makedev(CDEV_MAJOR, 0);
cnadd(&consdev);
}
#endif /* __alpha__ */
static void
sccnputc(dev_t dev, 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 = VIRTUAL_TTY(scp->sc, scp->index);
if (ISTTYOPEN(tp))
scstart(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
sccngetc(dev_t dev)
{
return sccngetch(0);
}
static int
sccncheckc(dev_t dev)
{
return sccngetch(SCGETC_NONBLOCK);
}
static void
sccndbctl(dev_t dev, int on)
{
/* assert(sc_console_unit >= 0) */
/* try to switch to the kernel console screen */
if (on && debugger == 0) {
/*
* TRY to make sure the screen saver is stopped,
* and the screen is updated before switching to
* the vty0.
*/
scrn_timer(NULL);
if (!cold
&& sc_console->sc->cur_scp->smode.mode == VT_AUTO
&& sc_console->smode.mode == VT_AUTO) {
sc_console->sc->cur_scp->status |= MOUSE_HIDDEN;
++debugger; /* XXX */
sc_switch_scr(sc_console->sc, sc_console->index);
--debugger; /* XXX */
}
}
if (on)
++debugger;
else
--debugger;
}
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.
*/
kbd_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;
kbd_ioctl(scp->sc->kbd, KDSKBMODE, (caddr_t)&scp->kbd_mode);
kbd_poll(scp->sc->kbd, TRUE);
c = scgetc(scp->sc, SCGETC_CN | flags);
kbd_poll(scp->sc->kbd, FALSE);
scp->kbd_mode = cur_mode;
kbd_ioctl(scp->sc->kbd, KDSKBMODE, (caddr_t)&scp->kbd_mode);
kbd_disable(scp->sc->kbd);
splx(s);
switch (KEYFLAGS(c)) {
case 0: /* normal char */
return KEYCHAR(c);
case FKEY: /* function key */
p = kbd_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 || scp->sc->videoio_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)
{
static int kbd_interval = 0;
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 || sc->videoio_in_progress) {
if (again)
timeout(scrn_timer, sc, hz / 10);
return;
}
s = spltty();
if ((sc->kbd == NULL) && (sc->config & SC_AUTODETECT_KBD)) {
/* try to allocate a keyboard automatically */
if (++kbd_interval >= 25) {
sc->keyboard = kbd_allocate("*", -1, (void *)&sc->keyboard,
sckbdevent, sc);
if (sc->keyboard >= 0) {
sc->kbd = kbd_get_keyboard(sc->keyboard);
kbd_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;
}
}
/* 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) */
++scp->sc->videoio_in_progress;
#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;
--scp->sc->videoio_in_progress;
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;
--scp->sc->videoio_in_progress;
}
#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 | RB_CONFIG))) {
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)
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
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((caddr_t)&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((caddr_t)&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));
/* 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->videoio_in_progress) {
sc->delayed_next_scr = next_scr + 1;
sc_touch_scrn_saver();
DPRINTF(5, ("switch delayed\n"));
return 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 = VIRTUAL_TTY(sc, cur_scp->index);
if ((cur_scp->index != next_scr)
&& ISTTYOPEN(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 = VIRTUAL_TTY(sc, next_scr);
if (!ISTTYOPEN(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->t_dev)->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->delayed_next_scr = 0;
sc->old_scp = cur_scp;
sc->new_scp = SC_STAT(SC_DEV(sc, next_scr));
if (sc->new_scp == sc->old_scp) {
sc->switch_in_progress = 0;
/*
* XXX wakeup() calls mtx_lock(&sched_lock) which will hang if
* sched_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((caddr_t)&sc->new_scp->smode);
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((caddr_t)&sc->cur_scp->smode);
/* 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)
cons_unavail = FALSE;
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((caddr_t)&sc->cur_scp->smode);
/* 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)
cons_unavail = FALSE;
}
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)
cons_unavail = TRUE;
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;
if (sc->old_scp->mode != scp->mode || ISUNKNOWNSC(sc->old_scp))
set_mode(scp);
else
sc_vtb_init(&scp->scr, VTB_FRAMEBUFFER, scp->xsize, scp->ysize,
(void *)sc->adp->va_window, FALSE);
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))
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)
kbd_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)
{
#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)
(*scp->tsw->te_puts)(scp, buf, len);
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); */
++scp->sc->videoio_in_progress;
(*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;
--scp->sc->videoio_in_progress;
}
void
sc_remove_cursor_image(scr_stat *scp)
{
/* assert(scp == scp->sc->cur_scp); */
++scp->sc->videoio_in_progress;
(*scp->rndr->draw_cursor)(scp, scp->cursor_oldpos,
scp->curs_attr.flags & CONS_BLINK_CURSOR, FALSE,
sc_inside_cutmark(scp, scp->cursor_oldpos));
--scp->sc->videoio_in_progress;
}
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); */
++scp->sc->videoio_in_progress;
(*scp->rndr->set_cursor)(scp, scp->curs_attr.base, scp->curs_attr.height,
scp->curs_attr.flags & CONS_BLINK_CURSOR);
--scp->sc->videoio_in_progress;
}
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;
dev_t dev;
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 ((dev = SC_DEV(sc, i)) == NODEV)
continue;
if ((scp = SC_STAT(dev)) == 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
*/
static scr_stat main_console;
static dev_t main_devs[MAXCONS];
static struct tty main_tty;
static u_short sc_buffer[ROW*COL]; /* XXX */
#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);
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 = kbd_allocate("*", unit, (void *)&sc->keyboard,
sckbdevent, sc);
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, 0);
sc->font_14 = malloc(sizeof(font_14), M_DEVBUF, 0);
sc->font_16 = malloc(sizeof(font_16), M_DEVBUF, 0);
}
#endif
/* extract the hardware cursor location and hide the cursor for now */
(*vidsw[sc->adapter]->read_hw_cursor)(sc->adp, &col, &row);
(*vidsw[sc->adapter]->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) {
sc->dev = main_devs;
sc->dev[0] = makedev(CDEV_MAJOR, unit*MAXCONS);
sc->dev[0]->si_tty = &main_tty;
ttyregister(&main_tty);
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(dev_t)*sc->vtys, M_DEVBUF, M_ZERO);
sc->dev[0] = makedev(CDEV_MAJOR, unit*MAXCONS);
sc->dev[0]->si_tty = ttymalloc(sc->dev[0]->si_tty);
scp = alloc_scp(sc, sc->first_vty);
}
SC_STAT(sc->dev[0]) = scp;
sc->cur_scp = scp;
/* 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);
/* 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, sc->font_8, 0, 256);
} else if (scp->font_size >= 16) {
sc_load_font(scp, 0, 16, sc->font_16, 0, 256);
} else {
sc_load_font(scp, 0, 14, sc->font_14, 0, 256);
}
#else /* !SC_DFLT_FONT */
if (scp->font_size < 14) {
sc_save_font(scp, 0, 8, sc->font_8, 0, 256);
sc->fonts_loaded = FONT_8;
} else if (scp->font_size >= 16) {
sc_save_font(scp, 0, 16, sc->font_16, 0, 256);
sc->fonts_loaded = FONT_16;
} else {
sc_save_font(scp, 0, 14, 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
save_palette(sc->adp, sc->palette);
#endif
#ifdef DEV_SPLASH
if (!(sc->flags & SC_SPLASH_SCRN) && (flags & SC_KERNEL_CONSOLE)) {
/* 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;
sc->flags |= SC_INIT_DONE;
}
#if __i386__ || __ia64__
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 */
(*vidsw[sc->adapter]->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_STAT(sc->dev[0]);
if (scp->tsw)
(*scp->tsw->te_term)(scp, &scp->ts);
if (scp->ts != NULL)
free(scp->ts, M_DEVBUF);
/* 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;
}
#endif
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, 0);
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;
(*vidsw[sc->adapter]->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;
if (info.vi_cheight < 14) {
scp->font_size = 8;
#ifndef SC_NO_FONT_LOADING
scp->font = sc->font_8;
#else
scp->font = NULL;
#endif
} else if (info.vi_cheight >= 16) {
scp->font_size = 16;
#ifndef SC_NO_FONT_LOADING
scp->font = sc->font_16;
#else
scp->font = NULL;
#endif
} else {
scp->font_size = 14;
#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);
sc_vtb_init(&scp->scr, VTB_FRAMEBUFFER, 0, 0, NULL, FALSE);
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 = BG_BLACK;
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;
}
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;
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;
/* 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 = kbd_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:
kbd_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 = VIRTUAL_TTY(sc, scp->index);
if (ISTTYOPEN(tp))
scstart(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
shutdown_nice(0);
#endif
break;
case HALT:
#ifndef SC_DISABLE_REBOOT
shutdown_nice(RB_HALT);
#endif
break;
case PDWN:
#ifndef SC_DISABLE_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_DDBKEY
#ifdef DDB
Debugger("manual escape to debugger");
#else
printf("No debugger in kernel\n");
#endif
#else /* SC_DISABLE_DDBKEY */
/* do nothing */
#endif /* SC_DISABLE_DDBKEY */
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 = VIRTUAL_TTY(sc, sc->first_vty + i);
if (ISTTYOPEN(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 = VIRTUAL_TTY(sc, sc->first_vty + i);
if (ISTTYOPEN(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
scmmap(dev_t dev, vm_offset_t offset, int nprot)
{
scr_stat *scp;
scp = SC_STAT(dev);
if (scp != scp->sc->cur_scp)
return -1;
return (*vidsw[scp->sc->adapter]->mmap)(scp->sc->adp, offset, nprot);
}
static int
save_kbd_state(scr_stat *scp)
{
int state;
int error;
error = kbd_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 = kbd_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 = kbd_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 = kbd_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 ((*vidsw[scp->sc->adapter]->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 */
(*vidsw[scp->sc->adapter]->set_mode)(scp->sc->adp, scp->mode);
sc_vtb_init(&scp->scr, VTB_FRAMEBUFFER, scp->xsize, scp->ysize,
(void *)scp->sc->adp->va_window, FALSE);
#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, 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, scp->sc->font_16, 0, 256);
} else {
if (scp->sc->fonts_loaded & FONT_14)
sc_load_font(scp, 0, 14, 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)
{
++scp->sc->videoio_in_progress;
(*scp->rndr->draw_border)(scp, color);
--scp->sc->videoio_in_progress;
}
#ifndef SC_NO_FONT_LOADING
void
sc_load_font(scr_stat *scp, int page, int size, u_char *buf,
int base, int count)
{
sc_softc_t *sc;
sc = scp->sc;
sc->font_loading_in_progress = TRUE;
(*vidsw[sc->adapter]->load_font)(sc->adp, page, size, buf, base, count);
sc->font_loading_in_progress = FALSE;
}
void
sc_save_font(scr_stat *scp, int page, int size, u_char *buf,
int base, int count)
{
sc_softc_t *sc;
sc = scp->sc;
sc->font_loading_in_progress = TRUE;
(*vidsw[sc->adapter]->save_font)(sc->adp, page, size, buf, base, count);
sc->font_loading_in_progress = FALSE;
}
void
sc_show_font(scr_stat *scp, int page)
{
(*vidsw[scp->sc->adapter]->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 = VIRTUAL_TTY(scp->sc, scp->sc->cur_scp->index);
if (!ISTTYOPEN(tp))
return;
rmap = scp->sc->scr_rmap;
for (; count > 0; --count)
(*linesw[tp->t_line].l_rint)(rmap[*p++], tp);
}
void
sc_bell(scr_stat *scp, int pitch, int duration)
{
if (cold || shutdown_in_progress)
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 (scp != scp->sc->cur_scp)
pitch *= 2;
sysbeep(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 = VIRTUAL_TTY(scp->sc, scp->index);
if (ISTTYOPEN(tp))
scstart(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);
}
}
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