/* $NetBSD: ite.c,v 1.77 2016/02/29 18:25:29 christos Exp $ */ /* * Copyright (c) 1988 University of Utah. * Copyright (c) 1990 The Regents of the University of California. * All rights reserved. * * This code is derived from software contributed to Berkeley by * the Systems Programming Group of the University of Utah Computer * Science Department. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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. * * from: Utah Hdr: ite.c 1.1 90/07/09 * from: @(#)ite.c 7.6 (Berkeley) 5/16/91 */ /* * ite - bitmapped terminal. * Supports VT200, a few terminal features will be unavailable until * the system actually probes the device (i.e. not after consinit()) */ #include __KERNEL_RCSID(0, "$NetBSD: ite.c,v 1.77 2016/02/29 18:25:29 christos Exp $"); #include "opt_ddb.h" #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "ioconf.h" #define ITEUNIT(dev) (minor(dev)) #define SUBR_INIT(sc) (sc)->grf->g_iteinit(sc) #define SUBR_DEINIT(sc) (sc)->grf->g_itedeinit(sc) #define SUBR_PUTC(sc,c,dy,dx,m) (sc)->grf->g_iteputc(sc,c,dy,dx,m) #define SUBR_CURSOR(sc,flg) (sc)->grf->g_itecursor(sc,flg) #define SUBR_CLEAR(sc,sy,sx,h,w) (sc)->grf->g_iteclear(sc,sy,sx,h,w) #define SUBR_SCROLL(sc,sy,sx,cnt,dir) (sc)->grf->g_itescroll(sc,sy,sx,cnt,dir) int start_repeat_timeo = 30; /* first repeat after x s/100 */ int next_repeat_timeo = 10; /* next repeat after x s/100 */ /* * Patchable */ int ite_default_x = 0; /* def leftedge offset */ int ite_default_y = 0; /* def topedge offset */ int ite_default_width = 640; /* def width */ int ite_default_depth = 1; /* def depth */ int ite_default_height = 400; /* def height */ int ite_default_wrap = 1; /* if you want vtxxx-nam -> binpatch */ struct ite_softc con_itesoftc; u_char cons_tabs[MAX_TABS]; struct ite_softc *kbd_ite; int kbd_init; static inline int atoi(const char *); static inline int ite_argnum(struct ite_softc *); static inline int ite_zargnum(struct ite_softc *); static inline void ite_cr(struct ite_softc *); static inline void ite_crlf(struct ite_softc *); static inline void ite_clrline(struct ite_softc *); static inline void ite_clrscreen(struct ite_softc *); static inline void ite_clrtobos(struct ite_softc *); static inline void ite_clrtobol(struct ite_softc *); static inline void ite_clrtoeol(struct ite_softc *); static inline void ite_clrtoeos(struct ite_softc *); static inline void ite_dnchar(struct ite_softc *, int); static inline void ite_inchar(struct ite_softc *, int); static inline void ite_inline(struct ite_softc *, int); static inline void ite_lf(struct ite_softc *); static inline void ite_dnline(struct ite_softc *, int); static inline void ite_rlf(struct ite_softc *); static inline void ite_sendstr(const char *); static inline void snap_cury(struct ite_softc *); static void alignment_display(struct ite_softc *); static struct ite_softc *getitesp(dev_t); static void itecheckwrap(struct ite_softc *); static void iteprecheckwrap(struct ite_softc *); static void itestart(struct tty *); static void ite_switch(int); static void repeat_handler(void *); void iteputchar(int c, struct ite_softc *sc); void ite_putstr(const u_char * s, int len, dev_t dev); void iteattach(device_t, device_t, void *); int itematch(device_t, cfdata_t, void *); /* * Console specific types. */ dev_type_cnprobe(itecnprobe); dev_type_cninit(itecninit); dev_type_cngetc(itecngetc); dev_type_cnputc(itecnputc); CFATTACH_DECL_NEW(ite, sizeof(struct ite_softc), itematch, iteattach, NULL, NULL); dev_type_open(iteopen); dev_type_close(iteclose); dev_type_read(iteread); dev_type_write(itewrite); dev_type_ioctl(iteioctl); dev_type_tty(itetty); dev_type_poll(itepoll); const struct cdevsw ite_cdevsw = { .d_open = iteopen, .d_close = iteclose, .d_read = iteread, .d_write = itewrite, .d_ioctl = iteioctl, .d_stop = nostop, .d_tty = itetty, .d_poll = itepoll, .d_mmap = nommap, .d_kqfilter = ttykqfilter, .d_discard = nodiscard, .d_flag = D_TTY }; /* * Keep track of the device number of the ite console. Only used in the * itematch/iteattach functions. */ static int cons_ite = -1; int itematch(device_t parent, cfdata_t cf, void *aux) { /* * Handle early console stuff. The first unit number * is the console unit. All other early matches will fail. */ if (atari_realconfig == 0) { if (cons_ite >= 0) return 0; cons_ite = cf->cf_unit; return 1; } return 1; } void iteattach(device_t parent, device_t self, void *aux) { struct grf_softc *gsc; struct ite_softc *sc; int s; int maj, unit; gsc = device_private(parent); sc = device_private(self); maj = cdevsw_lookup_major(&ite_cdevsw); unit = (self != NULL) ? device_unit(self) : cons_ite; gsc->g_itedev = makedev(maj, unit); if (self != NULL) { s = spltty(); if (con_itesoftc.grf != NULL && con_itesoftc.grf->g_unit == gsc->g_unit) { /* * console reinit copy params over. * and console always gets keyboard */ memcpy(&sc->grf, &con_itesoftc.grf, (char *)&sc[1] - (char *)&sc->grf); con_itesoftc.grf = NULL; kbd_ite = sc; } sc->grf = gsc; splx(s); iteinit(gsc->g_itedev); printf(": %dx%d", sc->rows, sc->cols); printf(" repeat at (%d/100)s next at (%d/100)s", start_repeat_timeo, next_repeat_timeo); if (kbd_ite == NULL) kbd_ite = sc; if (kbd_ite == sc) printf(" has keyboard"); printf("\n"); sc->flags |= ITE_ATTACHED; } else { if (con_itesoftc.grf != NULL && con_itesoftc.grf->g_conpri > gsc->g_conpri) return; con_itesoftc.grf = gsc; con_itesoftc.tabs = cons_tabs; } } static struct ite_softc * getitesp(dev_t dev) { if (atari_realconfig && (con_itesoftc.grf == NULL)) return(device_lookup_private(&ite_cd, ITEUNIT(dev))); if (con_itesoftc.grf == NULL) panic("no ite_softc for console"); return(&con_itesoftc); } /* * cons.c entry points into ite device. */ /* * Return a priority in consdev->cn_pri field highest wins. This function * is called before any devices have been probed. */ void itecnprobe(struct consdev *cd) { /* * return priority of the best ite (already picked from attach) * or CN_DEAD. */ if (con_itesoftc.grf == NULL) cd->cn_pri = CN_DEAD; else { cd->cn_pri = con_itesoftc.grf->g_conpri; cd->cn_dev = con_itesoftc.grf->g_itedev; } } void itecninit(struct consdev *cd) { struct ite_softc *sc; sc = getitesp(cd->cn_dev); sc->flags |= ITE_ISCONS; iteinit(cd->cn_dev); sc->flags |= ITE_ACTIVE | ITE_ISCONS; } /* * ite_cnfinish() is called in ite_init() when the device is * being probed in the normal fasion, thus we can finish setting * up this ite now that the system is more functional. */ void ite_cnfinish(struct ite_softc *sc) { static int done; if (done) return; done = 1; } int itecngetc(dev_t dev) { int c; do { c = kbdgetcn(); c = ite_cnfilter(c, ITEFILT_CONSOLE); } while (c == -1); return (c); } void itecnputc(dev_t dev, int c) { static int paniced; struct ite_softc *sc; char ch; sc = getitesp(dev); ch = c; if (panicstr && !paniced && (sc->flags & (ITE_ACTIVE | ITE_INGRF)) != ITE_ACTIVE) { ite_on(dev, 3); paniced = 1; } SUBR_CURSOR(sc, START_CURSOROPT); iteputchar(ch, sc); SUBR_CURSOR(sc, END_CURSOROPT); } /* * standard entry points to the device. */ /* * iteinit() is the standard entry point for initialization of * an ite device, it is also called from itecninit(). * */ void iteinit(dev_t dev) { struct ite_softc *sc; sc = getitesp(dev); if (sc->flags & ITE_INITED) return; if (atari_realconfig) { if (sc->kbdmap && sc->kbdmap != &ascii_kbdmap) free(sc->kbdmap, M_DEVBUF); sc->kbdmap = malloc(sizeof(struct kbdmap), M_DEVBUF, M_WAITOK); memcpy(sc->kbdmap, &ascii_kbdmap, sizeof(struct kbdmap)); } else sc->kbdmap = &ascii_kbdmap; sc->cursorx = 0; sc->cursory = 0; SUBR_INIT(sc); SUBR_CURSOR(sc, DRAW_CURSOR); if (sc->tabs == NULL) sc->tabs = malloc(MAX_TABS * sizeof(u_char),M_DEVBUF,M_WAITOK); ite_reset(sc); sc->flags |= ITE_INITED; } int iteopen(dev_t dev, int mode, int devtype, struct lwp *l) { struct ite_softc *sc; struct tty *tp; int error, first, unit; unit = ITEUNIT(dev); if (unit >= ite_cd.cd_ndevs) return ENXIO; first = 0; sc = getitesp(dev); if (sc == NULL) return ENXIO; if ((sc->flags & ITE_ATTACHED) == 0) return (ENXIO); if (sc->tp == NULL) { tp = sc->tp = tty_alloc(); tty_attach(tp); } else tp = sc->tp; if (kauth_authorize_device_tty(l->l_cred, KAUTH_DEVICE_TTY_OPEN, tp)) return (EBUSY); if ((sc->flags & ITE_ACTIVE) == 0) { ite_on(dev, 0); first = 1; } if (!(tp->t_state & TS_ISOPEN) && tp->t_wopen == 0) { tp->t_oproc = itestart; tp->t_param = ite_param; tp->t_dev = dev; 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; tp->t_state = TS_CARR_ON; ttychars(tp); ttsetwater(tp); } error = ttyopen(tp, 0, (mode & O_NONBLOCK) ? 1 : 0); if (error) goto bad; error = (*tp->t_linesw->l_open) (dev, tp); if (error) goto bad; tp->t_winsize.ws_row = sc->rows; tp->t_winsize.ws_col = sc->cols; if (!kbd_init) { kbd_init = 1; kbdenable(); } return (0); bad: if (first) ite_off(dev, 0); return (error); } int iteclose(dev_t dev, int flag, int mode, struct lwp *l) { struct tty *tp; tp = getitesp(dev)->tp; KDASSERT(tp); (*tp->t_linesw->l_close) (tp, flag); ttyclose(tp); ite_off(dev, 0); return (0); } int iteread(dev_t dev, struct uio *uio, int flag) { struct tty *tp; tp = getitesp(dev)->tp; KDASSERT(tp); return ((*tp->t_linesw->l_read) (tp, uio, flag)); } int itewrite(dev_t dev, struct uio *uio, int flag) { struct tty *tp; tp = getitesp(dev)->tp; KDASSERT(tp); return ((*tp->t_linesw->l_write) (tp, uio, flag)); } int itepoll(dev_t dev, int events, struct lwp *l) { struct tty *tp; tp = getitesp(dev)->tp; KDASSERT(tp); return ((*tp->t_linesw->l_poll)(tp, events, l)); } struct tty * itetty(dev_t dev) { return(getitesp(dev)->tp); } int iteioctl(dev_t dev, u_long cmd, void * addr, int flag, struct lwp *l) { struct iterepeat *irp; struct ite_softc *sc; struct tty *tp; view_t *view; struct itewinsize *is; struct itebell *ib; int error; sc = getitesp(dev); tp = sc->tp; view = viewview(sc->grf->g_viewdev); KDASSERT(tp); error = (*tp->t_linesw->l_ioctl) (tp, cmd, addr, flag, l); if (error != EPASSTHROUGH) return (error); error = ttioctl(tp, cmd, addr, flag, l); if (error != EPASSTHROUGH) return (error); switch (cmd) { case ITEIOCSKMAP: if (addr == NULL) return(EFAULT); memcpy(sc->kbdmap, addr, sizeof(struct kbdmap)); return 0; case ITEIOCSSKMAP: if (addr == NULL) return(EFAULT); memcpy(&ascii_kbdmap, addr, sizeof(struct kbdmap)); return 0; case ITEIOCGKMAP: if (addr == NULL) return(EFAULT); memcpy(addr, sc->kbdmap, sizeof(struct kbdmap)); return 0; case ITEIOCGREPT: if (addr == NULL) return(EFAULT); irp = (struct iterepeat *)addr; irp->start = start_repeat_timeo; irp->next = next_repeat_timeo; return 0; case ITEIOCSREPT: if (addr == NULL) return(EFAULT); irp = (struct iterepeat *)addr; if (irp->start < ITEMINREPEAT || irp->next < ITEMINREPEAT) return(EINVAL); start_repeat_timeo = irp->start; next_repeat_timeo = irp->next; return 0; case ITEIOCGWINSZ: if (addr == NULL) return(EFAULT); is = (struct itewinsize *)addr; is->x = view->display.x; is->y = view->display.y; is->width = view->display.width; is->height = view->display.height; is->depth = view->bitmap->depth; return 0; case ITEIOCDSPWIN: sc->grf->g_mode(sc->grf, GM_GRFON, NULL, 0, 0); return 0; case ITEIOCREMWIN: sc->grf->g_mode(sc->grf, GM_GRFOFF, NULL, 0, 0); return 0; case ITEIOCSBELL: if (addr == NULL) return(EFAULT); ib = (struct itebell *)addr; kbd_bell_sparms(ib->volume, ib->pitch, ib->msec); return 0; case ITEIOCGBELL: if (addr == NULL) return(EFAULT); ib = (struct itebell *)addr; kbd_bell_gparms(&ib->volume, &ib->pitch, &ib->msec); return 0; } return (sc->itexx_ioctl)(sc, cmd, addr, flag, l); } void itestart(struct tty *tp) { struct clist *rbp; u_char buf[ITEBURST]; int s, len; KDASSERT(tp); s = spltty(); { if (tp->t_state & (TS_TIMEOUT | TS_BUSY | TS_TTSTOP)) goto out; tp->t_state |= TS_BUSY; rbp = &tp->t_outq; len = q_to_b(rbp, buf, ITEBURST); } splx(s); /* Here is a really good place to implement pre/jumpscroll() */ ite_putstr((char *)buf, len, tp->t_dev); s = spltty(); { tp->t_state &= ~TS_BUSY; /* we have characters remaining. */ if (ttypull(tp)) { tp->t_state |= TS_TIMEOUT; callout_schedule(&tp->t_rstrt_ch, 1); } out: ; } splx(s); } void ite_on(dev_t dev, int flag) { struct ite_softc *sc; sc = getitesp(dev); /* force ite active, overriding graphics mode */ if (flag & 1) { sc->flags |= ITE_ACTIVE; sc->flags &= ~(ITE_INGRF | ITE_INITED); } /* leave graphics mode */ if (flag & 2) { sc->flags &= ~ITE_INGRF; if ((sc->flags & ITE_ACTIVE) == 0) return; } sc->flags |= ITE_ACTIVE; if (sc->flags & ITE_INGRF) return; iteinit(dev); } void ite_off(dev_t dev, int flag) { struct ite_softc *sc; sc = getitesp(dev); if (flag & 2) sc->flags |= ITE_INGRF; if ((sc->flags & ITE_ACTIVE) == 0) return; if ((flag & 1) || (sc->flags & (ITE_INGRF | ITE_ISCONS | ITE_INITED)) == ITE_INITED) SUBR_DEINIT(sc); if ((flag & 2) == 0) /* XXX hmm grfon() I think wants this to go inactive. */ sc->flags &= ~ITE_ACTIVE; } static void ite_switch(int unit) { struct ite_softc *sc; extern const struct cdevsw view_cdevsw; sc = device_lookup_private(&ite_cd, unit); if (sc == NULL || (sc->flags & (ITE_ATTACHED | ITE_INITED)) == 0) return; /* * If switching to an active ite, also switch the keyboard. */ if (sc->flags & ITE_ACTIVE) kbd_ite = sc; /* * Now make it visible */ (*view_cdevsw.d_ioctl)(sc->grf->g_viewdev, VIOCDISPLAY, NULL, 0, NOLWP); /* * Make sure the cursor's there too.... */ SUBR_CURSOR(sc, DRAW_CURSOR); } /* XXX called after changes made in underlying grf layer. */ /* I want to nuke this */ void ite_reinit(dev_t dev) { struct ite_softc *sc; sc = getitesp(dev); sc->flags &= ~ITE_INITED; iteinit(dev); } int ite_param(struct tty *tp, struct termios *t) { tp->t_ispeed = t->c_ispeed; tp->t_ospeed = t->c_ospeed; tp->t_cflag = t->c_cflag; return (0); } void ite_reset(struct ite_softc *sc) { int i; sc->curx = 0; sc->cury = 0; sc->attribute = ATTR_NOR; sc->save_curx = 0; sc->save_cury = 0; sc->save_attribute = ATTR_NOR; sc->ap = sc->argbuf; sc->emul_level = 0; sc->eightbit_C1 = 0; sc->top_margin = 0; sc->bottom_margin = sc->rows - 1; sc->inside_margins = 0; sc->linefeed_newline = 0; sc->auto_wrap = ite_default_wrap; sc->cursor_appmode = 0; sc->keypad_appmode = 0; sc->imode = 0; sc->key_repeat = 1; memset(sc->tabs, 0, sc->cols); for (i = 0; i < sc->cols; i++) sc->tabs[i] = ((i & 7) == 0); } /* * has to be global because of the shared filters. */ static u_char last_dead; /* * Used in console at startup only and for DDB. */ int ite_cnfilter(u_int c, enum caller caller) { struct key key; struct kbdmap *kbdmap; u_char code, up; int s; up = KBD_RELEASED(c); c = KBD_SCANCODE(c); code = 0; kbdmap = (kbd_ite == NULL) ? &ascii_kbdmap : kbd_ite->kbdmap; s = spltty(); /* * No special action if key released */ if (up) { splx(s); return -1; } /* translate modifiers */ if (kbd_modifier & KBD_MOD_SHIFT) { if (kbd_modifier & KBD_MOD_ALT) key = kbdmap->alt_shift_keys[c]; else key = kbdmap->shift_keys[c]; } else if (kbd_modifier & KBD_MOD_ALT) key = kbdmap->alt_keys[c]; else { key = kbdmap->keys[c]; /* * If CAPS and key is CAPable (no pun intended) */ if ((kbd_modifier & KBD_MOD_CAPS) && (key.mode & KBD_MODE_CAPS)) key = kbdmap->shift_keys[c]; } code = key.code; #ifdef notyet /* LWP: Didn't have time to look at this yet */ /* * If string return simple console filter */ if (key->mode & (KBD_MODE_STRING | KBD_MODE_KPAD)) { splx(s); return -1; } /* handle dead keys */ if (key->mode & KBD_MODE_DEAD) { /* if entered twice, send accent itself */ if (last_dead == (key->mode & KBD_MODE_ACCMASK)) last_dead = 0; else { last_dead = key->mode & KBD_MODE_ACCMASK; splx(s); return -1; } } if (last_dead) { /* can't apply dead flag to string-keys */ if (code >= '@' && code < 0x7f) code = acctable[KBD_MODE_ACCENT(last_dead)][code - '@']; last_dead = 0; } #endif if (kbd_modifier & KBD_MOD_CTRL) code &= 0x1f; /* * Do console mapping. */ code = code == '\r' ? '\n' : code; splx(s); return (code); } /* And now the old stuff. */ /* these are used to implement repeating keys.. */ static u_int last_char; static u_char tout_pending; static callout_t repeat_ch; /*ARGSUSED*/ static void repeat_handler(void *arg) { tout_pending = 0; if (last_char) add_sicallback((si_farg)ite_filter, (void *)last_char, (void *)ITEFILT_REPEATER); } void ite_filter(u_int c, enum caller caller) { struct tty *kbd_tty; struct kbdmap *kbdmap; u_char code, *str, up; struct key key; int s, i; static bool again; if (!again) { /* XXX */ callout_init(&repeat_ch, 0); again = true; } if (kbd_ite == NULL) return; kbd_tty = kbd_ite->tp; kbdmap = kbd_ite->kbdmap; up = KBD_RELEASED(c); c = KBD_SCANCODE(c); code = 0; /* have to make sure we're at spltty in here */ s = spltty(); /* * keyboard interrupts come at priority 2, while softint * generated keyboard-repeat interrupts come at level 1. So, * to not allow a key-up event to get thru before a repeat for * the key-down, we remove any outstanding callout requests.. */ rem_sicallback((si_farg)ite_filter); /* * Stop repeating on up event */ if (up) { if (tout_pending) { callout_stop(&repeat_ch); tout_pending = 0; last_char = 0; } splx(s); return; } else if (tout_pending && last_char != c) { /* * Different character, stop also */ callout_stop(&repeat_ch); tout_pending = 0; last_char = 0; } /* * Handle ite-switching ALT + Fx */ if ((kbd_modifier == KBD_MOD_ALT) && (c >= 0x3b) && (c <= 0x44)) { ite_switch(c - 0x3b); splx(s); return; } /* * Safety button, switch back to ascii keymap. */ if (kbd_modifier == (KBD_MOD_ALT | KBD_MOD_LSHIFT) && c == 0x3b) { /* ALT + LSHIFT + F1 */ memcpy(kbdmap, &ascii_kbdmap, sizeof(struct kbdmap)); splx(s); return; #ifdef DDB } else if (kbd_modifier == (KBD_MOD_ALT | KBD_MOD_LSHIFT) && c == 0x43) { /* * ALT + LSHIFT + F9 -> Debugger! */ Debugger(); splx(s); return; #endif } /* * The rest of the code is senseless when the device is not open. */ if (kbd_tty == NULL) { splx(s); return; } /* * Translate modifiers */ if (kbd_modifier & KBD_MOD_SHIFT) { if (kbd_modifier & KBD_MOD_ALT) key = kbdmap->alt_shift_keys[c]; else key = kbdmap->shift_keys[c]; } else if (kbd_modifier & KBD_MOD_ALT) key = kbdmap->alt_keys[c]; else { key = kbdmap->keys[c]; /* * If CAPS and key is CAPable (no pun intended) */ if ((kbd_modifier & KBD_MOD_CAPS) && (key.mode & KBD_MODE_CAPS)) key = kbdmap->shift_keys[c]; } code = key.code; /* * Arrange to repeat the keystroke. By doing this at the level * of scan-codes, we can have function keys, and keys that * send strings, repeat too. This also entitles an additional * overhead, since we have to do the conversion each time, but * I guess that's ok. */ if (!tout_pending && caller == ITEFILT_TTY && kbd_ite->key_repeat) { tout_pending = 1; last_char = c; callout_reset(&repeat_ch, start_repeat_timeo * hz / 100, repeat_handler, NULL); } else if (!tout_pending && caller==ITEFILT_REPEATER && kbd_ite->key_repeat) { tout_pending = 1; last_char = c; callout_reset(&repeat_ch, next_repeat_timeo * hz / 100, repeat_handler, NULL); } /* handle dead keys */ if (key.mode & KBD_MODE_DEAD) { /* if entered twice, send accent itself */ if (last_dead == (key.mode & KBD_MODE_ACCMASK)) last_dead = 0; else { last_dead = key.mode & KBD_MODE_ACCMASK; splx(s); return; } } if (last_dead) { /* can't apply dead flag to string-keys */ if (!(key.mode & KBD_MODE_STRING) && code >= '@' && code < 0x7f) code = acctable[KBD_MODE_ACCENT(last_dead)][code - '@']; last_dead = 0; } /* * If not string, apply CTRL modifiers */ if (!(key.mode & KBD_MODE_STRING) && (!(key.mode & KBD_MODE_KPAD) || (kbd_ite && !kbd_ite->keypad_appmode))) { if (kbd_modifier & KBD_MOD_CTRL) code &= 0x1f; } else if ((key.mode & KBD_MODE_KPAD) && (kbd_ite && kbd_ite->keypad_appmode)) { static const char * const in = "0123456789-+.\r()/*"; static const char * const out = "pqrstuvwxymlnMPQRS"; char *cp = strchr(in, code); /* * keypad-appmode sends SS3 followed by the above * translated character */ kbd_tty->t_linesw->l_rint(27, kbd_tty); kbd_tty->t_linesw->l_rint('O', kbd_tty); kbd_tty->t_linesw->l_rint(out[cp - in], kbd_tty); splx(s); return; } else { /* *NO* I don't like this.... */ static u_char app_cursor[] = { 3, 27, 'O', 'A', 3, 27, 'O', 'B', 3, 27, 'O', 'C', 3, 27, 'O', 'D'}; str = kbdmap->strings + code; /* * if this is a cursor key, AND it has the default * keymap setting, AND we're in app-cursor mode, switch * to the above table. This is *nasty* ! */ if (((c == 0x48) || (c == 0x4b) ||(c == 0x4d) || (c == 0x50)) && kbd_ite->cursor_appmode && !memcmp(str, "\x03\x1b[", 3) && strchr("ABCD", str[3])) str = app_cursor + 4 * (str[3] - 'A'); /* * using a length-byte instead of 0-termination allows * to embed \0 into strings, although this is not used * in the default keymap */ for (i = *str++; i; i--) kbd_tty->t_linesw->l_rint(*str++, kbd_tty); splx(s); return; } kbd_tty->t_linesw->l_rint(code, kbd_tty); splx(s); return; } /* helper functions, makes the code below more readable */ static inline void ite_sendstr(const char *str) { struct tty *kbd_tty; kbd_tty = kbd_ite->tp; KDASSERT(kbd_tty); while (*str) kbd_tty->t_linesw->l_rint(*str++, kbd_tty); } static void alignment_display(struct ite_softc *sc) { int i, j; for (j = 0; j < sc->rows; j++) for (i = 0; i < sc->cols; i++) SUBR_PUTC(sc, 'E', j, i, ATTR_NOR); attrclr(sc, 0, 0, sc->rows, sc->cols); SUBR_CURSOR(sc, DRAW_CURSOR); } static inline void snap_cury(struct ite_softc *sc) { if (sc->inside_margins) { if (sc->cury < sc->top_margin) sc->cury = sc->top_margin; if (sc->cury > sc->bottom_margin) sc->cury = sc->bottom_margin; } } static inline void ite_dnchar(struct ite_softc *sc, int n) { n = min(n, sc->cols - sc->curx); if (n < sc->cols - sc->curx) { SUBR_SCROLL(sc, sc->cury, sc->curx + n, n, SCROLL_LEFT); attrmov(sc, sc->cury, sc->curx + n, sc->cury, sc->curx, 1, sc->cols - sc->curx - n); attrclr(sc, sc->cury, sc->cols - n, 1, n); } while (n-- > 0) SUBR_PUTC(sc, ' ', sc->cury, sc->cols - n - 1, ATTR_NOR); SUBR_CURSOR(sc, DRAW_CURSOR); } static inline void ite_inchar(struct ite_softc *sc, int n) { n = min(n, sc->cols - sc->curx); if (n < sc->cols - sc->curx) { SUBR_SCROLL(sc, sc->cury, sc->curx, n, SCROLL_RIGHT); attrmov(sc, sc->cury, sc->curx, sc->cury, sc->curx + n, 1, sc->cols - sc->curx - n); attrclr(sc, sc->cury, sc->curx, 1, n); } while (n--) SUBR_PUTC(sc, ' ', sc->cury, sc->curx + n, ATTR_NOR); SUBR_CURSOR(sc, DRAW_CURSOR); } static inline void ite_clrtoeol(struct ite_softc *sc) { int y = sc->cury, x = sc->curx; if (sc->cols - x > 0) { SUBR_CLEAR(sc, y, x, 1, sc->cols - x); attrclr(sc, y, x, 1, sc->cols - x); SUBR_CURSOR(sc, DRAW_CURSOR); } } static inline void ite_clrtobol(struct ite_softc *sc) { int y = sc->cury, x = min(sc->curx + 1, sc->cols); SUBR_CLEAR(sc, y, 0, 1, x); attrclr(sc, y, 0, 1, x); SUBR_CURSOR(sc, DRAW_CURSOR); } static inline void ite_clrline(struct ite_softc *sc) { int y = sc->cury; SUBR_CLEAR(sc, y, 0, 1, sc->cols); attrclr(sc, y, 0, 1, sc->cols); SUBR_CURSOR(sc, DRAW_CURSOR); } static inline void ite_clrtoeos(struct ite_softc *sc) { ite_clrtoeol(sc); if (sc->cury < sc->rows - 1) { SUBR_CLEAR(sc, sc->cury + 1, 0, sc->rows - 1 - sc->cury, sc->cols); attrclr(sc, sc->cury, 0, sc->rows - sc->cury, sc->cols); SUBR_CURSOR(sc, DRAW_CURSOR); } } static inline void ite_clrtobos(struct ite_softc *sc) { ite_clrtobol(sc); if (sc->cury > 0) { SUBR_CLEAR(sc, 0, 0, sc->cury, sc->cols); attrclr(sc, 0, 0, sc->cury, sc->cols); SUBR_CURSOR(sc, DRAW_CURSOR); } } static inline void ite_clrscreen(struct ite_softc *sc) { SUBR_CLEAR(sc, 0, 0, sc->rows, sc->cols); attrclr(sc, 0, 0, sc->rows, sc->cols); SUBR_CURSOR(sc, DRAW_CURSOR); } static inline void ite_dnline(struct ite_softc *sc, int n) { /* interesting.. if the cursor is outside the scrolling region, this command is simply ignored.. */ if (sc->cury < sc->top_margin || sc->cury > sc->bottom_margin) return; n = min(n, sc->bottom_margin + 1 - sc->cury); if (n <= sc->bottom_margin - sc->cury) { SUBR_SCROLL(sc, sc->cury + n, 0, n, SCROLL_UP); attrmov(sc, sc->cury + n, 0, sc->cury, 0, sc->bottom_margin + 1 - sc->cury - n, sc->cols); } SUBR_CLEAR(sc, sc->bottom_margin - n + 1, 0, n, sc->cols); attrclr(sc, sc->bottom_margin - n + 1, 0, n, sc->cols); SUBR_CURSOR(sc, DRAW_CURSOR); } static inline void ite_inline(struct ite_softc *sc, int n) { /* interesting.. if the cursor is outside the scrolling region, this command is simply ignored.. */ if (sc->cury < sc->top_margin || sc->cury > sc->bottom_margin) return; n = min(n, sc->bottom_margin + 1 - sc->cury); if (n <= sc->bottom_margin - sc->cury) { SUBR_SCROLL(sc, sc->cury, 0, n, SCROLL_DOWN); attrmov(sc, sc->cury, 0, sc->cury + n, 0, sc->bottom_margin + 1 - sc->cury - n, sc->cols); } SUBR_CLEAR(sc, sc->cury, 0, n, sc->cols); attrclr(sc, sc->cury, 0, n, sc->cols); SUBR_CURSOR(sc, DRAW_CURSOR); } static inline void ite_lf (struct ite_softc *sc) { ++sc->cury; if ((sc->cury == sc->bottom_margin+1) || (sc->cury == sc->rows)) { sc->cury--; SUBR_SCROLL(sc, sc->top_margin + 1, 0, 1, SCROLL_UP); ite_clrline(sc); } SUBR_CURSOR(sc, MOVE_CURSOR); clr_attr(sc, ATTR_INV); } static inline void ite_crlf (struct ite_softc *sc) { sc->curx = 0; ite_lf (sc); } static inline void ite_cr (struct ite_softc *sc) { if (sc->curx) { sc->curx = 0; SUBR_CURSOR(sc, MOVE_CURSOR); } } static inline void ite_rlf (struct ite_softc *sc) { sc->cury--; if ((sc->cury < 0) || (sc->cury == sc->top_margin - 1)) { sc->cury++; SUBR_SCROLL(sc, sc->top_margin, 0, 1, SCROLL_DOWN); ite_clrline(sc); } SUBR_CURSOR(sc, MOVE_CURSOR); clr_attr(sc, ATTR_INV); } static inline int atoi (const char *cp) { int n; for (n = 0; *cp && *cp >= '0' && *cp <= '9'; cp++) n = n * 10 + *cp - '0'; return n; } static inline int ite_argnum (struct ite_softc *sc) { char ch; int n; /* convert argument string into number */ if (sc->ap == sc->argbuf) return 1; ch = *sc->ap; *sc->ap = 0; n = atoi (sc->argbuf); *sc->ap = ch; return n; } static inline int ite_zargnum (struct ite_softc *sc) { char ch; int n; /* convert argument string into number */ if (sc->ap == sc->argbuf) return 0; ch = *sc->ap; *sc->ap = 0; n = atoi (sc->argbuf); *sc->ap = ch; return n; /* don't "n ? n : 1" here, 0m != 1m ! */ } void ite_putstr(const u_char *s, int len, dev_t dev) { struct ite_softc *sc; int i; sc = getitesp(dev); /* XXX avoid problems */ if ((sc->flags & (ITE_ACTIVE|ITE_INGRF)) != ITE_ACTIVE) return; SUBR_CURSOR(sc, START_CURSOROPT); for (i = 0; i < len; i++) if (s[i]) iteputchar(s[i], sc); SUBR_CURSOR(sc, END_CURSOROPT); } void iteputchar(register int c, struct ite_softc *sc) { struct tty *kbd_tty; int n, x, y; char *cp; if (kbd_ite == NULL) kbd_tty = NULL; else kbd_tty = kbd_ite->tp; if (sc->escape) { switch (sc->escape) { case ESC: switch (c) { /* first 7bit equivalents for the 8bit control characters */ case 'D': c = IND; sc->escape = 0; break; /* and fall into the next switch below (same for all `break') */ case 'E': c = NEL; sc->escape = 0; break; case 'H': c = HTS; sc->escape = 0; break; case 'M': c = RI; sc->escape = 0; break; case 'N': c = SS2; sc->escape = 0; break; case 'O': c = SS3; sc->escape = 0; break; case 'P': c = DCS; sc->escape = 0; break; case '[': c = CSI; sc->escape = 0; break; case '\\': c = ST; sc->escape = 0; break; case ']': c = OSC; sc->escape = 0; break; case '^': c = PM; sc->escape = 0; break; case '_': c = APC; sc->escape = 0; break; /* introduces 7/8bit control */ case ' ': /* can be followed by either F or G */ sc->escape = ' '; break; /* a lot of character set selections, not yet used... 94-character sets: */ case '(': /* G0 */ case ')': /* G1 */ sc->escape = c; return; case '*': /* G2 */ case '+': /* G3 */ case 'B': /* ASCII */ case 'A': /* ISO latin 1 */ case '<': /* user preferred suplemental */ case '0': /* dec special graphics */ /* 96-character sets: */ case '-': /* G1 */ case '.': /* G2 */ case '/': /* G3 */ /* national character sets: */ case '4': /* dutch */ case '5': case 'C': /* finnish */ case 'R': /* french */ case 'Q': /* french canadian */ case 'K': /* german */ case 'Y': /* italian */ case '6': /* norwegian/danish */ /* note: %5 and %6 are not supported (two chars..) */ sc->escape = 0; /* just ignore for now */ return; /* locking shift modes (as you might guess, not yet supported..) */ case '`': sc->GR = sc->G1; sc->escape = 0; return; case 'n': sc->GL = sc->G2; sc->escape = 0; return; case '}': sc->GR = sc->G2; sc->escape = 0; return; case 'o': sc->GL = sc->G3; sc->escape = 0; return; case '|': sc->GR = sc->G3; sc->escape = 0; return; /* font width/height control */ case '#': sc->escape = '#'; return; /* hard terminal reset .. */ case 'c': ite_reset (sc); SUBR_CURSOR(sc, MOVE_CURSOR); sc->escape = 0; return; case '7': sc->save_curx = sc->curx; sc->save_cury = sc->cury; sc->save_attribute = sc->attribute; sc->escape = 0; return; case '8': sc->curx = sc->save_curx; sc->cury = sc->save_cury; sc->attribute = sc->save_attribute; SUBR_CURSOR(sc, MOVE_CURSOR); sc->escape = 0; return; case '=': sc->keypad_appmode = 1; sc->escape = 0; return; case '>': sc->keypad_appmode = 0; sc->escape = 0; return; case 'Z': /* request ID */ if (sc->emul_level == EMUL_VT100) ite_sendstr ("\033[?61;0c"); /* XXX not clean */ else ite_sendstr ("\033[?63;0c"); /* XXX not clean */ sc->escape = 0; return; /* default catch all for not recognized ESC sequences */ default: sc->escape = 0; return; } break; case '(': case ')': sc->escape = 0; return; case ' ': switch (c) { case 'F': sc->eightbit_C1 = 0; sc->escape = 0; return; case 'G': sc->eightbit_C1 = 1; sc->escape = 0; return; default: /* not supported */ sc->escape = 0; return; } break; case '#': switch (c) { case '5': /* single height, single width */ sc->escape = 0; return; case '6': /* double width, single height */ sc->escape = 0; return; case '3': /* top half */ sc->escape = 0; return; case '4': /* bottom half */ sc->escape = 0; return; case '8': /* screen alignment pattern... */ alignment_display (sc); sc->escape = 0; return; default: sc->escape = 0; return; } break; case CSI: /* the biggie... */ switch (c) { case '0': case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': case ';': case '\"': case '$': case '>': if (sc->ap < sc->argbuf + MAX_ARGSIZE) *sc->ap++ = c; return; case BS: /* you wouldn't believe such perversion is possible? it is.. BS is allowed in between cursor sequences (at least), according to vttest.. */ if (--sc->curx < 0) sc->curx = 0; else SUBR_CURSOR(sc, MOVE_CURSOR); break; case 'p': *sc->ap = 0; if (! strncmp (sc->argbuf, "61\"", 3)) sc->emul_level = EMUL_VT100; else if (! strncmp (sc->argbuf, "63;1\"", 5) || ! strncmp (sc->argbuf, "62;1\"", 5)) sc->emul_level = EMUL_VT300_7; else sc->emul_level = EMUL_VT300_8; sc->escape = 0; return; case '?': *sc->ap = 0; sc->escape = '?'; sc->ap = sc->argbuf; return; case 'c': *sc->ap = 0; if (sc->argbuf[0] == '>') { ite_sendstr ("\033[>24;0;0;0c"); } else switch (ite_zargnum(sc)) { case 0: /* primary DA request, send primary DA response */ if (sc->emul_level == EMUL_VT100) ite_sendstr ("\033[?1;1c"); else ite_sendstr ("\033[?63;1c"); break; } sc->escape = 0; return; case 'n': switch (ite_zargnum(sc)) { case 5: ite_sendstr ("\033[0n"); /* no malfunction */ break; case 6: /* cursor position report */ snprintf (sc->argbuf, sizeof(sc->argbuf), "\033[%d;%dR", sc->cury + 1, sc->curx + 1); ite_sendstr (sc->argbuf); break; } sc->escape = 0; return; case 'x': switch (ite_zargnum(sc)) { case 0: /* Fake some terminal parameters. */ ite_sendstr ("\033[2;1;1;112;112;1;0x"); break; case 1: ite_sendstr ("\033[3;1;1;112;112;1;0x"); break; } sc->escape = 0; return; case 'g': switch (ite_zargnum(sc)) { case 0: if (sc->curx < sc->cols) sc->tabs[sc->curx] = 0; break; case 3: for (n = 0; n < sc->cols; n++) sc->tabs[n] = 0; break; } sc->escape = 0; return; case 'h': case 'l': n = ite_zargnum (sc); switch (n) { case 4: sc->imode = (c == 'h'); /* insert/replace mode */ break; case 20: sc->linefeed_newline = (c == 'h'); break; } sc->escape = 0; return; case 'M': ite_dnline (sc, ite_argnum (sc)); sc->escape = 0; return; case 'L': ite_inline (sc, ite_argnum (sc)); sc->escape = 0; return; case 'P': ite_dnchar (sc, ite_argnum (sc)); sc->escape = 0; return; case '@': ite_inchar (sc, ite_argnum (sc)); sc->escape = 0; return; case 'G': /* this one was *not* in my vt320 manual but in a vt320 termcap entry.. who is right? It's supposed to set the horizontal cursor position. */ *sc->ap = 0; x = atoi (sc->argbuf); if (x) x--; sc->curx = min(x, sc->cols - 1); sc->escape = 0; SUBR_CURSOR(sc, MOVE_CURSOR); clr_attr (sc, ATTR_INV); return; case 'd': /* same thing here, this one's for setting the absolute vertical cursor position. Not documented... */ *sc->ap = 0; y = atoi (sc->argbuf); if (y) y--; if (sc->inside_margins) y += sc->top_margin; sc->cury = min(y, sc->rows - 1); sc->escape = 0; snap_cury(sc); SUBR_CURSOR(sc, MOVE_CURSOR); clr_attr (sc, ATTR_INV); return; case 'H': case 'f': *sc->ap = 0; y = atoi (sc->argbuf); x = 0; cp = strchr(sc->argbuf, ';'); if (cp) x = atoi (cp + 1); if (x) x--; if (y) y--; if (sc->inside_margins) y += sc->top_margin; sc->cury = min(y, sc->rows - 1); sc->curx = min(x, sc->cols - 1); sc->escape = 0; snap_cury(sc); SUBR_CURSOR(sc, MOVE_CURSOR); clr_attr (sc, ATTR_INV); return; case 'A': n = ite_argnum (sc); n = sc->cury - (n ? n : 1); if (n < 0) n = 0; if (sc->inside_margins) n = max(sc->top_margin, n); else if (n == sc->top_margin - 1) /* allow scrolling outside region, but don't scroll out of active region without explicit CUP */ n = sc->top_margin; sc->cury = n; sc->escape = 0; SUBR_CURSOR(sc, MOVE_CURSOR); clr_attr (sc, ATTR_INV); return; case 'B': n = ite_argnum (sc); n = sc->cury + (n ? n : 1); n = min(sc->rows - 1, n); if (sc->inside_margins) n = min(sc->bottom_margin, n); else if (n == sc->bottom_margin + 1) /* allow scrolling outside region, but don't scroll out of active region without explicit CUP */ n = sc->bottom_margin; sc->cury = n; sc->escape = 0; SUBR_CURSOR(sc, MOVE_CURSOR); clr_attr (sc, ATTR_INV); return; case 'C': n = ite_argnum (sc); n = n ? n : 1; sc->curx = min(sc->curx + n, sc->cols - 1); sc->escape = 0; SUBR_CURSOR(sc, MOVE_CURSOR); clr_attr (sc, ATTR_INV); return; case 'D': n = ite_argnum (sc); n = n ? n : 1; n = sc->curx - n; sc->curx = n >= 0 ? n : 0; sc->escape = 0; SUBR_CURSOR(sc, MOVE_CURSOR); clr_attr (sc, ATTR_INV); return; case 'J': *sc->ap = 0; n = ite_zargnum (sc); if (n == 0) ite_clrtoeos(sc); else if (n == 1) ite_clrtobos(sc); else if (n == 2) ite_clrscreen(sc); sc->escape = 0; return; case 'K': n = ite_zargnum (sc); if (n == 0) ite_clrtoeol(sc); else if (n == 1) ite_clrtobol(sc); else if (n == 2) ite_clrline(sc); sc->escape = 0; return; case 'X': n = ite_argnum(sc) - 1; n = min(n, sc->cols - 1 - sc->curx); for (; n >= 0; n--) { attrclr(sc, sc->cury, sc->curx + n, 1, 1); SUBR_PUTC(sc, ' ', sc->cury, sc->curx + n, ATTR_NOR); } sc->escape = 0; return; case '}': case '`': /* status line control */ sc->escape = 0; return; case 'r': *sc->ap = 0; x = atoi (sc->argbuf); x = x ? x : 1; y = sc->rows; cp = strchr(sc->argbuf, ';'); if (cp) { y = atoi (cp + 1); y = y ? y : sc->rows; } if (y - x < 2) { /* if illegal scrolling region, reset to defaults */ x = 1; y = sc->rows; } x--; y--; sc->top_margin = min(x, sc->rows - 1); sc->bottom_margin = min(y, sc->rows - 1); if (sc->inside_margins) { sc->cury = sc->top_margin; sc->curx = 0; SUBR_CURSOR(sc, MOVE_CURSOR); } sc->escape = 0; return; case 'm': /* big attribute setter/resetter */ { char *chp; *sc->ap = 0; /* kludge to make CSIm work (== CSI0m) */ if (sc->ap == sc->argbuf) sc->ap++; for (chp = sc->argbuf; chp < sc->ap; ) { switch (*chp) { case 0: case '0': clr_attr (sc, ATTR_ALL); chp++; break; case '1': set_attr (sc, ATTR_BOLD); chp++; break; case '2': switch (chp[1]) { case '2': clr_attr (sc, ATTR_BOLD); chp += 2; break; case '4': clr_attr (sc, ATTR_UL); chp += 2; break; case '5': clr_attr (sc, ATTR_BLINK); chp += 2; break; case '7': clr_attr (sc, ATTR_INV); chp += 2; break; default: chp++; break; } break; case '4': set_attr (sc, ATTR_UL); chp++; break; case '5': set_attr (sc, ATTR_BLINK); chp++; break; case '7': set_attr (sc, ATTR_INV); chp++; break; default: chp++; break; } } } sc->escape = 0; return; case 'u': /* DECRQTSR */ ite_sendstr ("\033P\033\\"); sc->escape = 0; return; default: sc->escape = 0; return; } break; case '?': /* CSI ? */ switch (c) { case '0': case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': case ';': case '\"': case '$': /* Don't fill the last character; it's needed. */ /* XXX yeah, where ?? */ if (sc->ap < sc->argbuf + MAX_ARGSIZE - 1) *sc->ap++ = c; return; case 'n': *sc->ap = 0; if (sc->ap == &sc->argbuf[2]) { if (! strncmp (sc->argbuf, "15", 2)) /* printer status: no printer */ ite_sendstr ("\033[13n"); else if (! strncmp (sc->argbuf, "25", 2)) /* udk status */ ite_sendstr ("\033[20n"); else if (! strncmp (sc->argbuf, "26", 2)) /* keyboard dialect: US */ ite_sendstr ("\033[27;1n"); } sc->escape = 0; return; case 'h': case 'l': n = ite_zargnum (sc); switch (n) { case 1: sc->cursor_appmode = (c == 'h'); break; case 3: /* 132/80 columns (132 == 'h') */ break; case 4: /* smooth scroll */ break; case 5: /* light background (=='h') /dark background(=='l') */ break; case 6: /* origin mode */ sc->inside_margins = (c == 'h'); sc->curx = 0; sc->cury = sc->inside_margins ? sc->top_margin : 0; SUBR_CURSOR(sc, MOVE_CURSOR); break; case 7: /* auto wraparound */ sc->auto_wrap = (c == 'h'); break; case 8: /* keyboard repeat */ sc->key_repeat = (c == 'h'); break; case 20: /* newline mode */ sc->linefeed_newline = (c == 'h'); break; case 25: /* cursor on/off */ SUBR_CURSOR(sc, (c == 'h') ? DRAW_CURSOR : ERASE_CURSOR); break; } sc->escape = 0; return; default: sc->escape = 0; return; } break; default: sc->escape = 0; return; } } switch (c) { case VT: /* VT is treated like LF */ case FF: /* so is FF */ case LF: /* cr->crlf distinction is done here, on output, not on input! */ if (sc->linefeed_newline) ite_crlf (sc); else ite_lf (sc); break; case CR: ite_cr (sc); break; case BS: if (--sc->curx < 0) sc->curx = 0; else SUBR_CURSOR(sc, MOVE_CURSOR); break; case HT: for (n = sc->curx + 1; n < sc->cols; n++) { if (sc->tabs[n]) { sc->curx = n; SUBR_CURSOR(sc, MOVE_CURSOR); break; } } break; case BEL: if (kbd_tty && kbd_ite && kbd_ite->tp == kbd_tty) kbdbell(); break; case SO: sc->GL = sc->G1; break; case SI: sc->GL = sc->G0; break; case ENQ: /* send answer-back message !! */ break; case CAN: sc->escape = 0; /* cancel any escape sequence in progress */ break; case SUB: sc->escape = 0; /* dito, but see below */ /* should also display a reverse question mark!! */ break; case ESC: sc->escape = ESC; break; /* now it gets weird.. 8bit control sequences.. */ case IND: /* index: move cursor down, scroll */ ite_lf (sc); break; case NEL: /* next line. next line, first pos. */ ite_crlf (sc); break; case HTS: /* set horizontal tab */ if (sc->curx < sc->cols) sc->tabs[sc->curx] = 1; break; case RI: /* reverse index */ ite_rlf (sc); break; case SS2: /* go into G2 for one character */ /* not yet supported */ break; case SS3: /* go into G3 for one character */ break; case DCS: /* device control string introducer */ sc->escape = DCS; sc->ap = sc->argbuf; break; case CSI: /* control sequence introducer */ sc->escape = CSI; sc->ap = sc->argbuf; break; case ST: /* string terminator */ /* ignore, if not used as terminator */ break; case OSC: /* introduces OS command. Ignore everything upto ST */ sc->escape = OSC; break; case PM: /* privacy message, ignore everything upto ST */ sc->escape = PM; break; case APC: /* application program command, ignore everything upto ST */ sc->escape = APC; break; default: if (c < ' ' || c == DEL) break; if (sc->imode) ite_inchar(sc, 1); iteprecheckwrap(sc); #ifdef DO_WEIRD_ATTRIBUTES if ((sc->attribute & ATTR_INV) || attrtest(sc, ATTR_INV)) { attrset(sc, ATTR_INV); SUBR_PUTC(sc, c, sc->cury, sc->curx, ATTR_INV); } else SUBR_PUTC(sc, c, sc->cury, sc->curx, ATTR_NOR); #else SUBR_PUTC(sc, c, sc->cury, sc->curx, sc->attribute); #endif SUBR_CURSOR(sc, DRAW_CURSOR); itecheckwrap(sc); break; } } static void iteprecheckwrap(struct ite_softc *sc) { if (sc->auto_wrap && sc->curx == sc->cols) { sc->curx = 0; clr_attr(sc, ATTR_INV); if (++sc->cury >= sc->bottom_margin + 1) { sc->cury = sc->bottom_margin; SUBR_CURSOR(sc, MOVE_CURSOR); SUBR_SCROLL(sc, sc->top_margin + 1, 0, 1, SCROLL_UP); ite_clrtoeol(sc); } else SUBR_CURSOR(sc, MOVE_CURSOR); } } static void itecheckwrap(struct ite_softc *sc) { if (sc->curx < sc->cols) { sc->curx++; SUBR_CURSOR(sc, MOVE_CURSOR); } }