diff options
Diffstat (limited to 'sys/dev/syscons/syscons.c')
| -rw-r--r-- | sys/dev/syscons/syscons.c | 3574 |
1 files changed, 3574 insertions, 0 deletions
diff --git a/sys/dev/syscons/syscons.c b/sys/dev/syscons/syscons.c new file mode 100644 index 0000000..6a885c4 --- /dev/null +++ b/sys/dev/syscons/syscons.c @@ -0,0 +1,3574 @@ +/*- + * 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, 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_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, 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 */ + (*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_WAITOK|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, 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; + (*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); + } +} |
