/* $NetBSD: ite.c,v 1.100 2022/05/28 10:36:22 andvar 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 * @(#)ite.c 7.6 (Berkeley) 5/16/91 */ /* * ite - bitmaped terminal. * Supports VT200, a few terminal features will be unavailable until * the system actually probes the device (i.e. not after consinit()) */ #include "opt_ddb.h" #include __KERNEL_RCSID(0, "$NetBSD: ite.c,v 1.100 2022/05/28 10:36:22 andvar Exp $"); #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include /* DEBUG */ #include /* DEBUG */ #include #include #include #include #include #include #include #include /* for is_draco() */ #include #include "grfcc.h" #include "ite.h" /* * XXX go ask sys/kern/tty.c:ttselect() */ #define ITEUNIT(dev) (minor(dev)) #define SUBR_INIT(ip) (ip)->grf->g_iteinit(ip) #define SUBR_DEINIT(ip) (ip)->grf->g_itedeinit(ip) #define SUBR_PUTC(ip,c,dy,dx,m) (ip)->grf->g_iteputc(ip,c,dy,dx,m) #define SUBR_CURSOR(ip,flg) (ip)->grf->g_itecursor(ip,flg) #define SUBR_CLEAR(ip,sy,sx,h,w) (ip)->grf->g_iteclear(ip,sy,sx,h,w) #define SUBR_SCROLL(ip,sy,sx,count,dir) \ (ip)->grf->g_itescroll(ip,sy,sx,count,dir) int start_repeat_timeo = 30; /* first repeat after x s/100 */ int next_repeat_timeo = 10; /* next repeat after x s/100 */ int ite_default_wrap = 1; /* you want vtxxx-nam, binpatch */ struct ite_softc con_itesoftc; u_char cons_tabs[MAX_TABS]; struct ite_softc *kbd_ite; /* audio bell stuff */ u_int bvolume = 10; u_int bpitch = 660; u_int bmsec = 75; static char *bsamplep; static char sample[20] = { 0,39,75,103,121,127,121,103,75,39,0, -39,-75,-103,-121,-127,-121,-103,-75,-39 }; static callout_t repeat_ch; void iteputchar(int c, struct ite_softc *ip); void ite_putstr(const char * s, int len, dev_t dev); void iteattach(device_t, device_t, void *); int itematch(device_t, cfdata_t, void *); static void iteprecheckwrap(struct ite_softc *); static void itecheckwrap(struct ite_softc *); struct ite_softc *getitesp(dev_t); void init_bell(void); void ite_bell(void); void itecnpollc(dev_t, int); static void repeat_handler(void *); inline static void ite_sendstr(const char *); static void alignment_display(struct ite_softc *); inline static void snap_cury(struct ite_softc *); inline static void ite_dnchar(struct ite_softc *, int); inline static void ite_inchar(struct ite_softc *, int); inline static void ite_clrtoeol(struct ite_softc *); inline static void ite_clrtobol(struct ite_softc *); inline static void ite_clrline(struct ite_softc *); inline static void ite_clrtoeos(struct ite_softc *); inline static void ite_clrtobos(struct ite_softc *); inline static void ite_clrscreen(struct ite_softc *); inline static void ite_dnline(struct ite_softc *, int); inline static void ite_inline(struct ite_softc *, int); inline static void ite_lf(struct ite_softc *); inline static void ite_crlf(struct ite_softc *); inline static void ite_cr(struct ite_softc *); inline static void ite_rlf(struct ite_softc *); inline static int atoi(const char *); inline static int ite_argnum(struct ite_softc *); inline static int ite_zargnum(struct ite_softc *); CFATTACH_DECL_NEW(ite, sizeof(struct ite_softc), itematch, iteattach, NULL, NULL); extern struct cfdriver ite_cd; 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 }; int itematch(device_t parent, cfdata_t cf, void *aux) { struct grf_softc *gp; int maj; gp = aux; /* * XXX * normally this would be done in attach, however * during early init we do not have a device pointer * and thus no unit number. */ maj = cdevsw_lookup_major(&ite_cdevsw); gp->g_itedev = makedev(maj, cf->cf_unit); return(1); } void iteattach(device_t parent, device_t self, void *aux) { struct grf_softc *gp; struct ite_softc *ip; int s; gp = aux; if (self) { ip = device_private(self); s = spltty(); if (con_itesoftc.grf != NULL && con_itesoftc.grf->g_unit == gp->g_unit) { /* * console reinit copy params over. * and console always gets keyboard */ memcpy(&ip->grf, &con_itesoftc.grf, (char *)&ip[1] - (char *)&ip->grf); con_itesoftc.grf = NULL; kbd_ite = ip; } ip->grf = gp; splx(s); iteinit(gp->g_itedev); printf(": rows %d cols %d", ip->rows, ip->cols); printf(" repeat at (%d/100)s next at (%d/100)s", start_repeat_timeo, next_repeat_timeo); if (kbd_ite == NULL) kbd_ite = ip; if (kbd_ite == ip) printf(" has keyboard"); printf("\n"); ip->flags |= ITE_ATTACHED; } else { if (con_itesoftc.grf != NULL && con_itesoftc.grf->g_conpri > gp->g_conpri) return; con_itesoftc.grf = gp; con_itesoftc.tabs = cons_tabs; } } struct ite_softc * getitesp(dev_t dev) { if (amiga_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; } } /* audio bell stuff */ void init_bell(void) { if (bsamplep != NULL) return; bsamplep = alloc_chipmem(20); if (bsamplep == NULL) panic("no chipmem for ite_bell"); memcpy(bsamplep, sample, 20); } void ite_bell(void) { u_int clock; u_int period; u_int count; clock = 3579545; /* PAL 3546895 */ /* * the number of clock ticks per sample byte must be > 124 * ergo bpitch must be < clock / 124*20 * i.e. ~1443, 1300 to be safe (PAL etc.). also not zero obviously */ period = clock / (bpitch * 20); count = bmsec * bpitch / 1000; play_sample(10, PREP_DMA_MEM(bsamplep), period, bvolume, 0x3, count); } void itecninit(struct consdev *cd) { struct ite_softc *ip; ip = getitesp(cd->cn_dev); iteinit(cd->cn_dev); ip->flags |= ITE_ACTIVE | ITE_ISCONS; #ifdef DRACO if (!is_draco()) #endif init_bell(); } /* * ite_cnfinish() is called in ite_init() when the device is * being probed in the normal fashion, thus we can finish setting * up this ite now that the system is more functional. */ void ite_cnfinish(struct ite_softc *ip) { static int done; if (done) return; done = 1; } int itecngetc(dev_t dev) { int c; /* XXX this should be moved */ kbdenable(); 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 *ip; char ch; ip = getitesp(dev); ch = c; if (panicstr && !paniced && (ip->flags & (ITE_ACTIVE | ITE_INGRF)) != ITE_ACTIVE) { ite_on(dev, 3); paniced = 1; } iteputchar(ch, ip); } void itecnpollc(dev_t dev, int on) { } /* * standard entry points to the device. */ /* * iteinit() is the standard entry point for initialization of * an ite device, it is also called from ite_cninit(). * */ void iteinit(dev_t dev) { struct ite_softc *ip; static int kbdmap_loaded = 0; ip = getitesp(dev); if (ip->flags & ITE_INITED) return; if (kbdmap_loaded == 0) { memcpy(&kbdmap, &ascii_kbdmap, sizeof(struct kbdmap)); kbdmap_loaded = 1; } callout_init(&repeat_ch, 0); ip->cursorx = 0; ip->cursory = 0; if (ip->grf->g_iteinit == NULL) return; /* grf has no console */ SUBR_INIT(ip); SUBR_CURSOR(ip, DRAW_CURSOR); if (ip->tabs == NULL) ip->tabs = malloc(MAX_TABS * sizeof(u_char),M_DEVBUF,M_WAITOK); ite_reset(ip); ip->flags |= ITE_INITED; } int iteopen(dev_t dev, int mode, int devtype, struct lwp *l) { struct ite_softc *ip; struct tty *tp; int error, first, unit; unit = ITEUNIT(dev); first = 0; if (unit >= ite_cd.cd_ndevs) return ENXIO; ip = getitesp(dev); if (ip == NULL) return ENXIO; if ((ip->flags & ITE_ATTACHED) == 0) return ENXIO; if (ip->tp == NULL) { tp = ip->tp = tty_alloc(); tty_attach(tp); } else tp = ip->tp; if (kauth_authorize_device_tty(l->l_cred, KAUTH_DEVICE_TTY_OPEN, tp)) return (EBUSY); if ((ip->flags & ITE_ACTIVE) == 0) { ite_on(dev, 0); first = 1; } tp->t_oproc = itestart; tp->t_param = ite_param; tp->t_dev = dev; if ((tp->t_state & TS_ISOPEN) == 0 && tp->t_wopen == 0) { ttychars(tp); tp->t_iflag = TTYDEF_IFLAG; tp->t_oflag = TTYDEF_OFLAG; tp->t_cflag = TTYDEF_CFLAG; tp->t_lflag = TTYDEF_LFLAG; tp->t_ispeed = tp->t_ospeed = TTYDEF_SPEED; tp->t_state = TS_CARR_ON; ttsetwater(tp); } error = ttyopen(tp, 0, mode & O_NONBLOCK); if (error) goto bad; error = tp->t_linesw->l_open(dev, tp); if (error) goto bad; tp->t_winsize.ws_row = ip->rows; tp->t_winsize.ws_col = ip->cols; 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 *ip; struct itebell *ib; struct tty *tp; int error; ip = getitesp(dev); tp = ip->tp; 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 ITEIOCGBELL: ib = (struct itebell *)addr; ib->volume = bvolume; ib->pitch = bpitch; ib->msec = bmsec; return (0); case ITEIOCSBELL: ib = (struct itebell *)addr; if (ib->pitch > MAXBPITCH || ib->pitch < MINBPITCH || ib->volume > MAXBVOLUME || ib->msec > MAXBTIME) return (EINVAL); bvolume = ib->volume; bpitch = ib->pitch; bmsec = ib->msec; return (0); case ITEIOCSKMAP: if (addr == 0) return(EFAULT); memcpy(&kbdmap, addr, sizeof(struct kbdmap)); return(0); case ITEIOCGKMAP: if (addr == NULL) return(EFAULT); memcpy(addr, &kbdmap, sizeof(struct kbdmap)); return(0); case ITEIOCGREPT: irp = (struct iterepeat *)addr; irp->start = start_repeat_timeo; irp->next = next_repeat_timeo; return (0); case ITEIOCSREPT: 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); } #if NGRFCC > 0 /* XXX */ if (minor(dev) == 0) { error = ite_grf_ioctl(ip, cmd, addr, flag, l); if (error >= 0) return (error); } #endif return (EPASSTHROUGH); } void itestart(struct tty *tp) { struct clist *rbp; u_char buf[ITEBURST]; int s, len; (void)getitesp(tp->t_dev); 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(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 *ip; ip = getitesp(dev); /* force ite active, overriding graphics mode */ if (flag & 1) { ip->flags |= ITE_ACTIVE; ip->flags &= ~(ITE_INGRF | ITE_INITED); } /* leave graphics mode */ if (flag & 2) { ip->flags &= ~ITE_INGRF; if ((ip->flags & ITE_ACTIVE) == 0) return; } ip->flags |= ITE_ACTIVE; if (ip->flags & ITE_INGRF) return; iteinit(dev); } void ite_off(dev_t dev, int flag) { struct ite_softc *ip; ip = getitesp(dev); if (flag & 2) ip->flags |= ITE_INGRF; if ((ip->flags & ITE_ACTIVE) == 0) return; if ((flag & 1) || (ip->flags & (ITE_INGRF | ITE_ISCONS | ITE_INITED)) == ITE_INITED) SUBR_DEINIT(ip); /* XXX hmm grfon() I think wants this to go inactive. */ if ((flag & 2) == 0) ip->flags &= ~ITE_ACTIVE; } /* XXX called after changes made in underlying grf layer. */ /* I want to nuke this */ void ite_reinit(dev_t dev) { struct ite_softc *ip; ip = getitesp(dev); ip->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 *ip) { int i; ip->curx = 0; ip->cury = 0; ip->attribute = ATTR_NOR; ip->save_curx = 0; ip->save_cury = 0; ip->save_attribute = ATTR_NOR; ip->ap = ip->argbuf; ip->emul_level = 0; ip->eightbit_C1 = 0; ip->top_margin = 0; ip->bottom_margin = ip->rows - 1; ip->inside_margins = 0; ip->linefeed_newline = 0; ip->auto_wrap = ite_default_wrap; ip->cursor_appmode = 0; ip->keypad_appmode = 0; ip->imode = 0; ip->key_repeat = 1; memset(ip->tabs, 0, ip->cols); for (i = 0; i < ip->cols; i++) ip->tabs[i] = ((i & 7) == 0); } /* * has to be global because of the shared filters. */ static u_char key_mod; static u_char last_dead; /* Used in console at startup only */ int ite_cnfilter(u_char c, enum caller caller) { struct key key; u_char code, up, mask; int s, i; up = c & 0x80 ? 1 : 0; c &= 0x7f; code = 0; s = spltty(); i = (int)c - KBD_LEFT_SHIFT; if (i >= 0 && i <= (KBD_RIGHT_META - KBD_LEFT_SHIFT)) { mask = 1 << i; if (up) key_mod &= ~mask; else key_mod |= mask; splx(s); return -1; } if (up) { splx(s); return -1; } /* translate modifiers */ if (key_mod & KBD_MOD_SHIFT) { if (key_mod & KBD_MOD_ALT) key = kbdmap.alt_shift_keys[c]; else key = kbdmap.shift_keys[c]; } else if (key_mod & KBD_MOD_ALT) key = kbdmap.alt_keys[c]; else { key = kbdmap.keys[c]; /* if CAPS and key is CAPable (no pun intended) */ if ((key_mod & KBD_MOD_CAPS) && (key.mode & KBD_MODE_CAPS)) key = kbdmap.shift_keys[c]; } code = key.code; /* if string return */ 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; } if (key_mod & KBD_MOD_CTRL) code &= 0x1f; if (key_mod & KBD_MOD_META) code |= 0x80; /* 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_char last_char; static u_char tout_pending; /*ARGSUSED*/ static void repeat_handler(void *arg) { tout_pending = 0; if (last_char) ite_filter(last_char, ITEFILT_REPEATER); } void ite_filter(u_char c, enum caller caller) { struct tty *kbd_tty; u_char code, *str, up, mask; struct key key; int s, i; if (kbd_ite == NULL || kbd_ite->tp == NULL) return; kbd_tty = kbd_ite->tp; /* have to make sure we're at spltty in here */ s = spltty(); up = c & 0x80 ? 1 : 0; c &= 0x7f; code = 0; i = (int)c - KBD_LEFT_SHIFT; if (i >= 0 && i <= (KBD_RIGHT_META - KBD_LEFT_SHIFT)) { mask = 1 << i; if (up) key_mod &= ~mask; else key_mod |= mask; splx(s); return; } /* 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; } /* Safety button, switch back to ascii keymap. */ if (key_mod == (KBD_MOD_LALT | KBD_MOD_LMETA) && c == 0x50) { memcpy(&kbdmap, &ascii_kbdmap, sizeof(struct kbdmap)); splx(s); return; #ifdef DDB } else if (key_mod == (KBD_MOD_LALT | KBD_MOD_LMETA) && c == 0x59) { Debugger(); splx(s); return; #endif } /* translate modifiers */ if (key_mod & KBD_MOD_SHIFT) { if (key_mod & KBD_MOD_ALT) key = kbdmap.alt_shift_keys[c]; else key = kbdmap.shift_keys[c]; } else if (key_mod & KBD_MOD_ALT) key = kbdmap.alt_keys[c]; else { key = kbdmap.keys[c]; /* if CAPS and key is CAPable (no pun intended) */ if ((key_mod & 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 META and CTRL modifiers */ if (!(key.mode & KBD_MODE_STRING) && (!(key.mode & KBD_MODE_KPAD) || (kbd_ite && !kbd_ite->keypad_appmode))) { if (key_mod & KBD_MOD_CTRL) code &= 0x1f; if (key_mod & KBD_MOD_META) code |= 0x80; } else if ((key.mode & KBD_MODE_KPAD) && (kbd_ite && kbd_ite->keypad_appmode)) { static char in[] = { 0x0f /* 0 */, 0x1d /* 1 */, 0x1e /* 2 */, 0x1f /* 3 */, 0x2d /* 4 */, 0x2e /* 5 */, 0x2f /* 6 */, 0x3d /* 7 */, 0x3e /* 8 */, 0x3f /* 9 */, 0x4a /* - */, 0x5e /* + */, 0x3c /* . */, 0x43 /* e */, 0x5a /* ( */, 0x5b /* ) */, 0x5c /* / */, 0x5d /* * */ }; static const char *out = "pqrstuvwxymlnMPQRS"; char *cp = strchr(in, c); /* * 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 >= 0x4c && c <= 0x4f && 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 */ inline static 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 *ip) { int i, j; for (j = 0; j < ip->rows; j++) for (i = 0; i < ip->cols; i++) SUBR_PUTC(ip, 'E', j, i, ATTR_NOR); attrclr(ip, 0, 0, ip->rows, ip->cols); SUBR_CURSOR(ip, DRAW_CURSOR); } inline static void snap_cury(struct ite_softc *ip) { if (ip->inside_margins) { if (ip->cury < ip->top_margin) ip->cury = ip->top_margin; if (ip->cury > ip->bottom_margin) ip->cury = ip->bottom_margin; } } inline static void ite_dnchar(struct ite_softc *ip, int n) { n = uimin(n, ip->cols - ip->curx); if (n < ip->cols - ip->curx) { SUBR_SCROLL(ip, ip->cury, ip->curx + n, n, SCROLL_LEFT); attrmov(ip, ip->cury, ip->curx + n, ip->cury, ip->curx, 1, ip->cols - ip->curx - n); attrclr(ip, ip->cury, ip->cols - n, 1, n); } while (n-- > 0) SUBR_PUTC(ip, ' ', ip->cury, ip->cols - n - 1, ATTR_NOR); SUBR_CURSOR(ip, DRAW_CURSOR); } inline static void ite_inchar(struct ite_softc *ip, int n) { n = uimin(n, ip->cols - ip->curx); if (n < ip->cols - ip->curx) { SUBR_SCROLL(ip, ip->cury, ip->curx, n, SCROLL_RIGHT); attrmov(ip, ip->cury, ip->curx, ip->cury, ip->curx + n, 1, ip->cols - ip->curx - n); attrclr(ip, ip->cury, ip->curx, 1, n); } while (n--) SUBR_PUTC(ip, ' ', ip->cury, ip->curx + n, ATTR_NOR); SUBR_CURSOR(ip, DRAW_CURSOR); } inline static void ite_clrtoeol(struct ite_softc *ip) { int y = ip->cury, x = ip->curx; if (ip->cols - x > 0) { SUBR_CLEAR(ip, y, x, 1, ip->cols - x); attrclr(ip, y, x, 1, ip->cols - x); SUBR_CURSOR(ip, DRAW_CURSOR); } } inline static void ite_clrtobol(struct ite_softc *ip) { int y = ip->cury, x = uimin(ip->curx + 1, ip->cols); SUBR_CLEAR(ip, y, 0, 1, x); attrclr(ip, y, 0, 1, x); SUBR_CURSOR(ip, DRAW_CURSOR); } inline static void ite_clrline(struct ite_softc *ip) { int y = ip->cury; SUBR_CLEAR(ip, y, 0, 1, ip->cols); attrclr(ip, y, 0, 1, ip->cols); SUBR_CURSOR(ip, DRAW_CURSOR); } inline static void ite_clrtoeos(struct ite_softc *ip) { ite_clrtoeol(ip); if (ip->cury < ip->rows - 1) { SUBR_CLEAR(ip, ip->cury + 1, 0, ip->rows - 1 - ip->cury, ip->cols); attrclr(ip, ip->cury, 0, ip->rows - ip->cury, ip->cols); SUBR_CURSOR(ip, DRAW_CURSOR); } } inline static void ite_clrtobos(struct ite_softc *ip) { ite_clrtobol(ip); if (ip->cury > 0) { SUBR_CLEAR(ip, 0, 0, ip->cury, ip->cols); attrclr(ip, 0, 0, ip->cury, ip->cols); SUBR_CURSOR(ip, DRAW_CURSOR); } } inline static void ite_clrscreen(struct ite_softc *ip) { SUBR_CLEAR(ip, 0, 0, ip->rows, ip->cols); attrclr(ip, 0, 0, ip->rows, ip->cols); SUBR_CURSOR(ip, DRAW_CURSOR); } inline static void ite_dnline(struct ite_softc *ip, int n) { /* interesting.. if the cursor is outside the scrolling region, this command is simply ignored.. */ if (ip->cury < ip->top_margin || ip->cury > ip->bottom_margin) return; n = uimin(n, ip->bottom_margin + 1 - ip->cury); if (n <= ip->bottom_margin - ip->cury) { SUBR_SCROLL(ip, ip->cury + n, 0, n, SCROLL_UP); attrmov(ip, ip->cury + n, 0, ip->cury, 0, ip->bottom_margin + 1 - ip->cury - n, ip->cols); } SUBR_CLEAR(ip, ip->bottom_margin - n + 1, 0, n, ip->cols); attrclr(ip, ip->bottom_margin - n + 1, 0, n, ip->cols); SUBR_CURSOR(ip, DRAW_CURSOR); } inline static void ite_inline(struct ite_softc *ip, int n) { /* interesting.. if the cursor is outside the scrolling region, this command is simply ignored.. */ if (ip->cury < ip->top_margin || ip->cury > ip->bottom_margin) return; n = uimin(n, ip->bottom_margin + 1 - ip->cury); if (n <= ip->bottom_margin - ip->cury) { SUBR_SCROLL(ip, ip->cury, 0, n, SCROLL_DOWN); attrmov(ip, ip->cury, 0, ip->cury + n, 0, ip->bottom_margin + 1 - ip->cury - n, ip->cols); } SUBR_CLEAR(ip, ip->cury, 0, n, ip->cols); attrclr(ip, ip->cury, 0, n, ip->cols); SUBR_CURSOR(ip, DRAW_CURSOR); } inline static void ite_lf(struct ite_softc *ip) { ++ip->cury; if ((ip->cury == ip->bottom_margin+1) || (ip->cury == ip->rows)) { ip->cury--; SUBR_SCROLL(ip, ip->top_margin + 1, 0, 1, SCROLL_UP); ite_clrline(ip); } SUBR_CURSOR(ip, MOVE_CURSOR); clr_attr(ip, ATTR_INV); } inline static void ite_crlf(struct ite_softc *ip) { ip->curx = 0; ite_lf (ip); } inline static void ite_cr(struct ite_softc *ip) { if (ip->curx) { ip->curx = 0; SUBR_CURSOR(ip, MOVE_CURSOR); } } inline static void ite_rlf(struct ite_softc *ip) { ip->cury--; if ((ip->cury < 0) || (ip->cury == ip->top_margin - 1)) { ip->cury++; SUBR_SCROLL(ip, ip->top_margin, 0, 1, SCROLL_DOWN); ite_clrline(ip); } SUBR_CURSOR(ip, MOVE_CURSOR); clr_attr(ip, ATTR_INV); } inline static int atoi(const char *cp) { int n; for (n = 0; *cp && *cp >= '0' && *cp <= '9'; cp++) n = n * 10 + *cp - '0'; return n; } inline static int ite_argnum(struct ite_softc *ip) { char ch; int n; /* convert argument string into number */ if (ip->ap == ip->argbuf) return 1; ch = *ip->ap; *ip->ap = 0; n = atoi (ip->argbuf); *ip->ap = ch; return n; } inline static int ite_zargnum(struct ite_softc *ip) { char ch; int n; /* convert argument string into number */ if (ip->ap == ip->argbuf) return 0; ch = *ip->ap; *ip->ap = 0; n = atoi (ip->argbuf); *ip->ap = ch; return n; /* don't "n ? n : 1" here, 0m != 1m ! */ } void ite_putstr(const char *s, int len, dev_t dev) { struct ite_softc *ip; int i; ip = getitesp(dev); /* XXX avoid problems */ if ((ip->flags & (ITE_ACTIVE|ITE_INGRF)) != ITE_ACTIVE) return; SUBR_CURSOR(ip, START_CURSOROPT); for (i = 0; i < len; i++) if (s[i]) iteputchar(s[i], ip); SUBR_CURSOR(ip, END_CURSOROPT); } static void iteprecheckwrap(struct ite_softc *ip) { if (ip->auto_wrap && ip->curx == ip->cols) { ip->curx = 0; clr_attr(ip, ATTR_INV); if (++ip->cury >= ip->bottom_margin + 1) { ip->cury = ip->bottom_margin; SUBR_CURSOR(ip, MOVE_CURSOR); SUBR_SCROLL(ip, ip->top_margin + 1, 0, 1, SCROLL_UP); ite_clrtoeol(ip); } else SUBR_CURSOR(ip, MOVE_CURSOR); } } static void itecheckwrap(struct ite_softc *ip) { #if 0 if (++ip->curx == ip->cols) { if (ip->auto_wrap) { ip->curx = 0; clr_attr(ip, ATTR_INV); if (++ip->cury >= ip->bottom_margin + 1) { ip->cury = ip->bottom_margin; SUBR_CURSOR(ip, MOVE_CURSOR); SUBR_SCROLL(ip, ip->top_margin + 1, 0, 1, SCROLL_UP); ite_clrtoeol(ip); return; } } else /* stay there if no autowrap.. */ ip->curx--; } #else if (ip->curx < ip->cols) { ip->curx++; SUBR_CURSOR(ip, MOVE_CURSOR); } #endif } void iteputchar(register int c, struct ite_softc *ip) { struct tty *kbd_tty; int n, x, y; char *cp; if (kbd_ite == NULL) kbd_tty = NULL; else kbd_tty = kbd_ite->tp; if (ip->escape) { switch (ip->escape) { case ESC: switch (c) { /* * first 7bit equivalents for the * 8bit control characters */ case 'D': c = IND; ip->escape = 0; break; /* * and fall into the next * switch below (same for all `break') */ case 'E': c = NEL; ip->escape = 0; break; case 'H': c = HTS; ip->escape = 0; break; case 'M': c = RI; ip->escape = 0; break; case 'N': c = SS2; ip->escape = 0; break; case 'O': c = SS3; ip->escape = 0; break; case 'P': c = DCS; ip->escape = 0; break; case '[': c = CSI; ip->escape = 0; break; case '\\': c = ST; ip->escape = 0; break; case ']': c = OSC; ip->escape = 0; break; case '^': c = PM; ip->escape = 0; break; case '_': c = APC; ip->escape = 0; break; /* introduces 7/8bit control */ case ' ': /* can be followed by either F or G */ ip->escape = ' '; break; /* * a lot of character set selections, not yet * used... 94-character sets: */ case '(': /* G0 */ case ')': /* G1 */ ip->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..) */ ip->escape = 0; /* just ignore for now */ return; /* * locking shift modes (as you might guess, not * yet supported..) */ case '`': ip->GR = ip->G1; ip->escape = 0; return; case 'n': ip->GL = ip->G2; ip->escape = 0; return; case '}': ip->GR = ip->G2; ip->escape = 0; return; case 'o': ip->GL = ip->G3; ip->escape = 0; return; case '|': ip->GR = ip->G3; ip->escape = 0; return; case '#': /* font width/height control */ ip->escape = '#'; return; case 'c': /* hard terminal reset .. */ ite_reset(ip); SUBR_CURSOR(ip, MOVE_CURSOR); ip->escape = 0; return; case '7': ip->save_curx = ip->curx; ip->save_cury = ip->cury; ip->save_attribute = ip->attribute; ip->escape = 0; return; case '8': ip->curx = ip->save_curx; ip->cury = ip->save_cury; ip->attribute = ip->save_attribute; SUBR_CURSOR(ip, MOVE_CURSOR); ip->escape = 0; return; case '=': ip->keypad_appmode = 1; ip->escape = 0; return; case '>': ip->keypad_appmode = 0; ip->escape = 0; return; case 'Z': /* request ID */ /* XXX not clean */ if (ip->emul_level == EMUL_VT100) ite_sendstr("\033[?61;0c"); else ite_sendstr("\033[?63;0c"); ip->escape = 0; return; default: /* * default catch all for not recognized ESC * sequences */ ip->escape = 0; return; } break; case '(': case ')': ip->escape = 0; return; case ' ': switch (c) { case 'F': ip->eightbit_C1 = 0; ip->escape = 0; return; case 'G': ip->eightbit_C1 = 1; ip->escape = 0; return; default: /* not supported */ ip->escape = 0; return; } break; case '#': switch (c) { case '5': /* single height, single width */ ip->escape = 0; return; case '6': /* double width, single height */ ip->escape = 0; return; case '3': /* top half */ ip->escape = 0; return; case '4': /* bottom half */ ip->escape = 0; return; case '8': /* screen alignment pattern... */ alignment_display(ip); ip->escape = 0; return; default: ip->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 (ip->ap < ip->argbuf + MAX_ARGSIZE) *ip->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 (--ip->curx < 0) ip->curx = 0; else SUBR_CURSOR(ip, MOVE_CURSOR); break; case 'p': *ip->ap = 0; if (!strncmp(ip->argbuf, "61\"", 3)) ip->emul_level = EMUL_VT100; else if (!strncmp(ip->argbuf, "63;1\"", 5) || !strncmp(ip->argbuf, "62;1\"", 5)) ip->emul_level = EMUL_VT300_7; else ip->emul_level = EMUL_VT300_8; ip->escape = 0; return; case '?': *ip->ap = 0; ip->escape = '?'; ip->ap = ip->argbuf; return; case 'c': *ip->ap = 0; if (ip->argbuf[0] == '>') { ite_sendstr("\033[>24;0;0;0c"); } else switch (ite_zargnum(ip)) { case 0: /* * primary DA request, send * primary DA response */ if (ip->emul_level == EMUL_VT100) ite_sendstr( "\033[?1;1c"); else ite_sendstr( "\033[?63;1c"); break; } ip->escape = 0; return; case 'n': switch (ite_zargnum(ip)) { case 5: /* no malfunction */ ite_sendstr("\033[0n"); break; case 6: /* cursor position report */ snprintf(ip->argbuf, sizeof(ip->argbuf), "\033[%d;%dR", ip->cury + 1, ip->curx + 1); ite_sendstr(ip->argbuf); break; } ip->escape = 0; return; case 'x': switch (ite_zargnum(ip)) { 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; } ip->escape = 0; return; case 'g': switch (ite_zargnum(ip)) { case 0: if (ip->curx < ip->cols) ip->tabs[ip->curx] = 0; break; case 3: for (n = 0; n < ip->cols; n++) ip->tabs[n] = 0; break; } ip->escape = 0; return; case 'h': case 'l': n = ite_zargnum(ip); switch (n) { case 4: /* insert/replace mode */ ip->imode = (c == 'h'); break; case 20: ip->linefeed_newline = (c == 'h'); break; } ip->escape = 0; return; case 'M': ite_dnline(ip, ite_argnum(ip)); ip->escape = 0; return; case 'L': ite_inline(ip, ite_argnum(ip)); ip->escape = 0; return; case 'P': ite_dnchar(ip, ite_argnum(ip)); ip->escape = 0; return; case '@': ite_inchar(ip, ite_argnum(ip)); ip->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. */ *ip->ap = 0; x = atoi(ip->argbuf); if (x) x--; ip->curx = uimin(x, ip->cols - 1); ip->escape = 0; SUBR_CURSOR(ip, MOVE_CURSOR); clr_attr(ip, ATTR_INV); return; case 'd': /* * same thing here, this one's for setting the * absolute vertical cursor position. Not * documented... */ *ip->ap = 0; y = atoi(ip->argbuf); if (y) y--; if (ip->inside_margins) y += ip->top_margin; ip->cury = uimin(y, ip->rows - 1); ip->escape = 0; snap_cury(ip); SUBR_CURSOR(ip, MOVE_CURSOR); clr_attr(ip, ATTR_INV); return; case 'H': case 'f': *ip->ap = 0; y = atoi(ip->argbuf); x = 0; cp = strchr(ip->argbuf, ';'); if (cp) x = atoi(cp + 1); if (x) x--; if (y) y--; if (ip->inside_margins) y += ip->top_margin; ip->cury = uimin(y, ip->rows - 1); ip->curx = uimin(x, ip->cols - 1); ip->escape = 0; snap_cury(ip); SUBR_CURSOR(ip, MOVE_CURSOR); clr_attr(ip, ATTR_INV); return; case 'A': n = ite_argnum(ip); n = ip->cury - (n ? n : 1); if (n < 0) n = 0; if (ip->inside_margins) n = uimax(ip->top_margin, n); else if (n == ip->top_margin - 1) /* * allow scrolling outside region, but * don't scroll out of active region * without explicit CUP */ n = ip->top_margin; ip->cury = n; ip->escape = 0; SUBR_CURSOR(ip, MOVE_CURSOR); clr_attr(ip, ATTR_INV); return; case 'B': n = ite_argnum(ip); n = ip->cury + (n ? n : 1); n = uimin(ip->rows - 1, n); if (ip->inside_margins) n = uimin(ip->bottom_margin, n); else if (n == ip->bottom_margin + 1) /* * allow scrolling outside region, but * don't scroll out of active region * without explicit CUP */ n = ip->bottom_margin; ip->cury = n; ip->escape = 0; SUBR_CURSOR(ip, MOVE_CURSOR); clr_attr(ip, ATTR_INV); return; case 'C': n = ite_argnum(ip); n = n ? n : 1; ip->curx = uimin(ip->curx + n, ip->cols - 1); ip->escape = 0; SUBR_CURSOR(ip, MOVE_CURSOR); clr_attr(ip, ATTR_INV); return; case 'D': n = ite_argnum(ip); n = n ? n : 1; n = ip->curx - n; ip->curx = n >= 0 ? n : 0; ip->escape = 0; SUBR_CURSOR(ip, MOVE_CURSOR); clr_attr(ip, ATTR_INV); return; case 'J': *ip->ap = 0; n = ite_zargnum(ip); if (n == 0) ite_clrtoeos(ip); else if (n == 1) ite_clrtobos(ip); else if (n == 2) ite_clrscreen(ip); ip->escape = 0; return; case 'K': n = ite_zargnum(ip); if (n == 0) ite_clrtoeol(ip); else if (n == 1) ite_clrtobol(ip); else if (n == 2) ite_clrline(ip); ip->escape = 0; return; case 'X': n = ite_argnum(ip) - 1; n = uimin(n, ip->cols - 1 - ip->curx); for (; n >= 0; n--) { attrclr(ip, ip->cury, ip->curx + n, 1, 1); SUBR_PUTC(ip, ' ', ip->cury, ip->curx + n, ATTR_NOR); } ip->escape = 0; return; case '}': case '`': /* status line control */ ip->escape = 0; return; case 'r': *ip->ap = 0; x = atoi(ip->argbuf); x = x ? x : 1; y = ip->rows; cp = strchr(ip->argbuf, ';'); if (cp) { y = atoi(cp + 1); y = y ? y : ip->rows; } if (y - x < 2) { /* * if illegal scrolling region, reset * to defaults */ x = 1; y = ip->rows; } x--; y--; ip->top_margin = uimin(x, ip->rows - 1); ip->bottom_margin = uimin(y, ip->rows - 1); if (ip->inside_margins) { ip->cury = ip->top_margin; ip->curx = 0; SUBR_CURSOR(ip, MOVE_CURSOR); } ip->escape = 0; return; case 'm': /* big attribute setter/resetter */ { char *_cp; *ip->ap = 0; /* kludge to make CSIm work (== CSI0m) */ if (ip->ap == ip->argbuf) ip->ap++; for (_cp = ip->argbuf; _cp < ip->ap;) { switch (*_cp) { case 0: case '0': clr_attr(ip, ATTR_ALL); _cp++; break; case '1': set_attr(ip, ATTR_BOLD); _cp++; break; case '2': switch (_cp[1]) { case '2': clr_attr(ip, ATTR_BOLD); _cp += 2; break; case '4': clr_attr(ip, ATTR_UL); _cp += 2; break; case '5': clr_attr(ip, ATTR_BLINK); _cp += 2; break; case '7': clr_attr(ip, ATTR_INV); _cp += 2; break; default: _cp++; break; } break; case '4': set_attr(ip, ATTR_UL); _cp++; break; case '5': set_attr(ip, ATTR_BLINK); _cp++; break; case '7': set_attr(ip, ATTR_INV); _cp++; break; default: _cp++; break; } } ip->escape = 0; return; } case 'u': /* DECRQTSR */ ite_sendstr("\033P\033\\"); ip->escape = 0; return; default: ip->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 (ip->ap < ip->argbuf + MAX_ARGSIZE - 1) *ip->ap++ = c; return; case 'n': *ip->ap = 0; if (ip->ap == &ip->argbuf[2]) { if (!strncmp(ip->argbuf, "15", 2)) /* printer status: no printer */ ite_sendstr("\033[13n"); else if (!strncmp(ip->argbuf, "25", 2)) /* udk status */ ite_sendstr("\033[20n"); else if (!strncmp(ip->argbuf, "26", 2)) /* keyboard dialect: US */ ite_sendstr("\033[27;1n"); } ip->escape = 0; return; case 'h': case 'l': n = ite_zargnum(ip); switch (n) { case 1: ip->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 */ ip->inside_margins = (c == 'h'); ip->curx = 0; ip->cury = ip->inside_margins ? ip->top_margin : 0; SUBR_CURSOR(ip, MOVE_CURSOR); break; case 7: /* auto wraparound */ ip->auto_wrap = (c == 'h'); break; case 8: /* keyboard repeat */ ip->key_repeat = (c == 'h'); break; case 20: /* newline mode */ ip->linefeed_newline = (c == 'h'); break; case 25: /* cursor on/off */ SUBR_CURSOR(ip, (c == 'h') ? DRAW_CURSOR : ERASE_CURSOR); break; } ip->escape = 0; return; default: ip->escape = 0; return; } break; default: ip->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 (ip->linefeed_newline) ite_crlf(ip); else ite_lf(ip); break; case CR: ite_cr(ip); break; case BS: if (--ip->curx < 0) ip->curx = 0; else SUBR_CURSOR(ip, MOVE_CURSOR); break; case HT: for (n = ip->curx + 1; n < ip->cols; n++) { if (ip->tabs[n]) { ip->curx = n; SUBR_CURSOR(ip, MOVE_CURSOR); break; } } break; case BEL: if (kbd_tty && kbd_ite && kbd_ite->tp == kbd_tty #ifdef DRACO && !is_draco() #endif ) ite_bell(); break; case SO: ip->GL = ip->G1; break; case SI: ip->GL = ip->G0; break; case ENQ: /* send answer-back message !! */ break; case CAN: ip->escape = 0; /* cancel any escape sequence in progress */ break; case SUB: ip->escape = 0; /* dito, but see below */ /* should also display a reverse question mark!! */ break; case ESC: ip->escape = ESC; break; /* * now it gets weird.. 8bit control sequences.. */ case IND: /* index: move cursor down, scroll */ ite_lf(ip); break; case NEL: /* next line. next line, first pos. */ ite_crlf(ip); break; case HTS: /* set horizontal tab */ if (ip->curx < ip->cols) ip->tabs[ip->curx] = 1; break; case RI: /* reverse index */ ite_rlf(ip); 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 */ ip->escape = DCS; ip->ap = ip->argbuf; break; case CSI: /* control sequence introducer */ ip->escape = CSI; ip->ap = ip->argbuf; break; case ST: /* string terminator */ /* ignore, if not used as terminator */ break; case OSC: /* * introduces OS command. Ignore everything * upto ST */ ip->escape = OSC; break; case PM: /* privacy message, ignore everything upto ST */ ip->escape = PM; break; case APC: /* * application program command, ignore * everything upto ST */ ip->escape = APC; break; default: if ((c & 0x7f) < ' ' || c == DEL) break; if (ip->imode) ite_inchar(ip, 1); iteprecheckwrap(ip); #ifdef DO_WEIRD_ATTRIBUTES if ((ip->attribute & ATTR_INV) || attrtest(ip, ATTR_INV)) { attrset(ip, ATTR_INV); SUBR_PUTC(ip, c, ip->cury, ip->curx, ATTR_INV); } else SUBR_PUTC(ip, c, ip->cury, ip->curx, ATTR_NOR); #else SUBR_PUTC(ip, c, ip->cury, ip->curx, ip->attribute); #endif SUBR_CURSOR(ip, DRAW_CURSOR); itecheckwrap(ip); break; } }