kbd.c

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    1 /*      $NetBSD: kbd.c,v 1.39 2003/09/21 19:16:56 jdolecek Exp $        */
    2 
    3 /*
    4  * Copyright (c) 1992, 1993
    5  *      The Regents of the University of California.  All rights reserved.
    6  *
    7  * This software was developed by the Computer Systems Engineering group
    8  * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
    9  * contributed to Berkeley.
   10  *
   11  * All advertising materials mentioning features or use of this software
   12  * must display the following acknowledgement:
   13  *      This product includes software developed by the University of
   14  *      California, Lawrence Berkeley Laboratory.
   15  *
   16  * Redistribution and use in source and binary forms, with or without
   17  * modification, are permitted provided that the following conditions
   18  * are met:
   19  * 1. Redistributions of source code must retain the above copyright
   20  *    notice, this list of conditions and the following disclaimer.
   21  * 2. Redistributions in binary form must reproduce the above copyright
   22  *    notice, this list of conditions and the following disclaimer in the
   23  *    documentation and/or other materials provided with the distribution.
   24  * 3. Neither the name of the University nor the names of its contributors
   25  *    may be used to endorse or promote products derived from this software
   26  *    without specific prior written permission.
   27  *
   28  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
   29  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   30  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   31  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   32  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   33  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   34  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   35  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   36  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   37  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   38  * SUCH DAMAGE.
   39  *
   40  *      @(#)kbd.c       8.2 (Berkeley) 10/30/93
   41  */
   42 
   43 /*
   44  * Keyboard driver (/dev/kbd -- note that we do not have minor numbers
   45  * [yet?]).  Translates incoming bytes to ASCII or to `firm_events' and
   46  * passes them up to the appropriate reader.
   47  */
   48 
   49 #include <sys/cdefs.h>
   50 __KERNEL_RCSID(0, "$NetBSD: kbd.c,v 1.39 2003/09/21 19:16:56 jdolecek Exp $");
   51 
   52 #include <sys/param.h>
   53 #include <sys/systm.h>
   54 #include <sys/conf.h>
   55 #include <sys/device.h>
   56 #include <sys/ioctl.h>
   57 #include <sys/kernel.h>
   58 #include <sys/proc.h>
   59 #include <sys/malloc.h>
   60 #include <sys/signal.h>
   61 #include <sys/signalvar.h>
   62 #include <sys/time.h>
   63 #include <sys/syslog.h>
   64 #include <sys/select.h>
   65 #include <sys/poll.h>
   66 #include <sys/file.h>
   67 
   68 #include <dev/wscons/wsksymdef.h>
   69 
   70 #include <dev/sun/kbd_reg.h>
   71 #include <dev/sun/kbio.h>
   72 #include <dev/sun/vuid_event.h>
   73 #include <dev/sun/event_var.h>
   74 #include <dev/sun/kbd_xlate.h>
   75 #include <dev/sun/kbdvar.h>
   76 
   77 #include "locators.h"
   78 
   79 extern struct cfdriver kbd_cd;
   80 
   81 dev_type_open(kbdopen);
   82 dev_type_close(kbdclose);
   83 dev_type_read(kbdread);
   84 dev_type_ioctl(kbdioctl);
   85 dev_type_poll(kbdpoll);
   86 dev_type_kqfilter(kbdkqfilter);
   87 
   88 const struct cdevsw kbd_cdevsw = {
   89         kbdopen, kbdclose, kbdread, nowrite, kbdioctl,
   90         nostop, notty, kbdpoll, nommap, kbdkqfilter
   91 };
   92 
   93 #if NWSKBD > 0
   94 int     wssunkbd_enable __P((void *, int));
   95 void    wssunkbd_set_leds __P((void *, int));
   96 int     wssunkbd_ioctl __P((void *, u_long, caddr_t, int, struct proc *));
   97 
   98 void    sunkbd_wskbd_cngetc __P((void *, u_int *, int *));
   99 void    sunkbd_wskbd_cnpollc __P((void *, int));
  100 void    sunkbd_wskbd_cnbell __P((void *, u_int, u_int, u_int));
  101 static void sunkbd_bell_off(void *v);
  102 
  103 const struct wskbd_accessops sunkbd_wskbd_accessops = {
  104         wssunkbd_enable,
  105         wssunkbd_set_leds,
  106         wssunkbd_ioctl,
  107 };
  108 
  109 extern const struct wscons_keydesc wssun_keydesctab[];
  110 const struct wskbd_mapdata sunkbd_wskbd_keymapdata = {
  111         wssun_keydesctab,
  112 #ifdef SUNKBD_LAYOUT
  113         SUNKBD_LAYOUT,
  114 #else
  115         KB_US,
  116 #endif
  117 };
  118 
  119 const struct wskbd_consops sunkbd_wskbd_consops = {
  120         sunkbd_wskbd_cngetc,
  121         sunkbd_wskbd_cnpollc,
  122         sunkbd_wskbd_cnbell,
  123 };
  124 
  125 void kbd_wskbd_attach(struct kbd_softc *k, int isconsole);
  126 #endif
  127 
  128 /* ioctl helpers */
  129 static int kbd_iockeymap(struct kbd_state *ks,
  130                          u_long cmd, struct kiockeymap *kio);
  131 #ifdef KIOCGETKEY
  132 static int kbd_oldkeymap(struct kbd_state *ks,
  133                          u_long cmd, struct okiockey *okio);
  134 #endif
  135 
  136 
  137 /* callbacks for console driver */
  138 static int kbd_cc_open(struct cons_channel *);
  139 static int kbd_cc_close(struct cons_channel *);
  140 
  141 /* console input */
  142 static void     kbd_input_console(struct kbd_softc *, int);
  143 static void     kbd_repeat(void *);
  144 static int      kbd_input_keysym(struct kbd_softc *, int);
  145 static void     kbd_input_string(struct kbd_softc *, char *);
  146 static void     kbd_input_funckey(struct kbd_softc *, int);
  147 static void     kbd_update_leds(struct kbd_softc *);
  148 
  149 #if NWSKBD > 0
  150 static void     kbd_input_wskbd(struct kbd_softc *, int);
  151 #endif
  152 
  153 /* firm events input */
  154 static void     kbd_input_event(struct kbd_softc *, int);
  155 
  156 
  157 
  158 /****************************************************************
  159  *  Entry points for /dev/kbd
  160  *  (open,close,read,write,...)
  161  ****************************************************************/
  162 
  163 /*
  164  * Open:
  165  * Check exclusion, open actual device (_iopen),
  166  * setup event channel, clear ASCII repeat stuff.
  167  */
  168 int
  169 kbdopen(dev, flags, mode, p)
  170         dev_t dev;
  171         int flags, mode;
  172         struct proc *p;
  173 {
  174         struct kbd_softc *k;
  175         int error, unit;
  176 
  177         /* locate device */
  178         unit = minor(dev);
  179         if (unit >= kbd_cd.cd_ndevs)
  180                 return (ENXIO);
  181         k = kbd_cd.cd_devs[unit];
  182         if (k == NULL)
  183                 return (ENXIO);
  184 
  185         /*
  186          * NB: wscons support: while we can track if wskbd has called
  187          * enable(), we can't tell if that's for console input or for
  188          * events input, so we should probably just let the open to
  189          * always succeed regardless (e.g. Xsun opening /dev/kbd).
  190          */
  191 
  192         /* exclusive open required for /dev/kbd */
  193         if (k->k_events.ev_io)
  194                 return (EBUSY);
  195         k->k_events.ev_io = p;
  196 
  197         /* stop pending autorepeat of console input */
  198         if (k->k_repeating) {
  199                 k->k_repeating = 0;
  200                 callout_stop(&k->k_repeat_ch);
  201         }
  202 
  203         /* open actual underlying device */
  204         if (k->k_ops != NULL && k->k_ops->open != NULL)
  205                 if ((error = (*k->k_ops->open)(k)) != 0) {
  206                         k->k_events.ev_io = NULL;
  207                         return (error);
  208                 }
  209 
  210         ev_init(&k->k_events);
  211         k->k_evmode = 0;        /* XXX: OK? */
  212 
  213         return (0);
  214 }
  215 
  216 
  217 /*
  218  * Close:
  219  * Turn off event mode, dump the queue, and close the keyboard
  220  * unless it is supplying console input.
  221  */
  222 int
  223 kbdclose(dev, flags, mode, p)
  224         dev_t dev;
  225         int flags, mode;
  226         struct proc *p;
  227 {
  228         struct kbd_softc *k;
  229 
  230         k = kbd_cd.cd_devs[minor(dev)];
  231         k->k_evmode = 0;
  232         ev_fini(&k->k_events);
  233         k->k_events.ev_io = NULL;
  234 
  235         if (k->k_ops != NULL && k->k_ops->close != NULL) {
  236                 int error;
  237                 if ((error = (*k->k_ops->close)(k)) != 0)
  238                         return (error);
  239         }
  240         return (0);
  241 }
  242 
  243 
  244 int
  245 kbdread(dev, uio, flags)
  246         dev_t dev;
  247         struct uio *uio;
  248         int flags;
  249 {
  250         struct kbd_softc *k;
  251 
  252         k = kbd_cd.cd_devs[minor(dev)];
  253         return (ev_read(&k->k_events, uio, flags));
  254 }
  255 
  256 
  257 int
  258 kbdpoll(dev, events, p)
  259         dev_t dev;
  260         int events;
  261         struct proc *p;
  262 {
  263         struct kbd_softc *k;
  264 
  265         k = kbd_cd.cd_devs[minor(dev)];
  266         return (ev_poll(&k->k_events, events, p));
  267 }
  268 
  269 int
  270 kbdkqfilter(dev, kn)
  271         dev_t dev;
  272         struct knote *kn;
  273 {
  274         struct kbd_softc *k;
  275 
  276         k = kbd_cd.cd_devs[minor(dev)];
  277         return (ev_kqfilter(&k->k_events, kn));
  278 }
  279 
  280 int
  281 kbdioctl(dev, cmd, data, flag, p)
  282         dev_t dev;
  283         u_long cmd;
  284         caddr_t data;
  285         int flag;
  286         struct proc *p;
  287 {
  288         struct kbd_softc *k;
  289         struct kbd_state *ks;
  290         int error = 0;
  291 
  292         k = kbd_cd.cd_devs[minor(dev)];
  293         ks = &k->k_state;
  294 
  295         switch (cmd) {
  296 
  297         case KIOCTRANS:         /* Set translation mode */
  298                 /* We only support "raw" mode on /dev/kbd */
  299                 if (*(int *)data != TR_UNTRANS_EVENT)
  300                         error = EINVAL;
  301                 break;
  302 
  303         case KIOCGTRANS:        /* Get translation mode */
  304                 /* We only support "raw" mode on /dev/kbd */
  305                 *(int *)data = TR_UNTRANS_EVENT;
  306                 break;
  307 
  308 #ifdef KIOCGETKEY
  309         case KIOCGETKEY:        /* Get keymap entry (old format) */
  310                 error = kbd_oldkeymap(ks, cmd, (struct okiockey *)data);
  311                 break;
  312 #endif /* KIOCGETKEY */
  313 
  314         case KIOCSKEY:          /* Set keymap entry */
  315                 /* FALLTHROUGH */
  316         case KIOCGKEY:          /* Get keymap entry */
  317                 error = kbd_iockeymap(ks, cmd, (struct kiockeymap *)data);
  318                 break;
  319 
  320         case KIOCCMD:           /* Send a command to the keyboard */
  321                 /* pass it to the middle layer */
  322                 if (k->k_ops != NULL && k->k_ops->docmd != NULL)
  323                         error = (*k->k_ops->docmd)(k, *(int *)data, 1);
  324                 break;
  325 
  326         case KIOCTYPE:          /* Get keyboard type */
  327                 *(int *)data = ks->kbd_id;
  328                 break;
  329 
  330         case KIOCSDIRECT:       /* Where to send input */
  331                 k->k_evmode = *(int *)data;
  332                 break;
  333 
  334         case KIOCLAYOUT:        /* Get keyboard layout */
  335                 *(int *)data = ks->kbd_layout;
  336                 break;
  337 
  338         case KIOCSLED:          /* Set keyboard LEDs */
  339                 /* pass the request to the middle layer */
  340                 if (k->k_ops != NULL && k->k_ops->setleds != NULL)
  341                         error = (*k->k_ops->setleds)(k, *(char *)data, 1);
  342                 break;
  343 
  344         case KIOCGLED:          /* Get keyboard LEDs */
  345                 *(char *)data = ks->kbd_leds;
  346                 break;
  347 
  348         case FIONBIO:           /* we will remove this someday (soon???) */
  349                 break;
  350 
  351         case FIOASYNC:
  352                 k->k_events.ev_async = (*(int *)data != 0);
  353                 break;
  354 
  355         case FIOSETOWN:
  356                 if (-*(int *)data != k->k_events.ev_io->p_pgid
  357                     && *(int *)data != k->k_events.ev_io->p_pid)
  358                         error = EPERM;
  359                 break;
  360 
  361         case TIOCSPGRP:
  362                 if (*(int *)data != k->k_events.ev_io->p_pgid)
  363                         error = EPERM;
  364                 break;
  365 
  366         default:
  367                 error = ENOTTY;
  368                 break;
  369         }
  370 
  371         return (error);
  372 }
  373 
  374 
  375 /****************************************************************
  376  * ioctl helpers
  377  ****************************************************************/
  378 
  379 /*
  380  * Get/Set keymap entry
  381  */
  382 static int
  383 kbd_iockeymap(ks, cmd, kio)
  384         struct kbd_state *ks;
  385         u_long cmd;
  386         struct kiockeymap *kio;
  387 {
  388         u_short *km;
  389         u_int station;
  390 
  391         switch (kio->kio_tablemask) {
  392         case KIOC_NOMASK:
  393                 km = ks->kbd_k.k_normal;
  394                 break;
  395         case KIOC_SHIFTMASK:
  396                 km = ks->kbd_k.k_shifted;
  397                 break;
  398         case KIOC_CTRLMASK:
  399                 km = ks->kbd_k.k_control;
  400                 break;
  401         case KIOC_UPMASK:
  402                 km = ks->kbd_k.k_release;
  403                 break;
  404         default:
  405                 /* Silently ignore unsupported masks */
  406                 return (0);
  407         }
  408 
  409         /* Range-check the table position. */
  410         station = kio->kio_station;
  411         if (station >= KEYMAP_SIZE)
  412                 return (EINVAL);
  413 
  414         switch (cmd) {
  415 
  416         case KIOCGKEY:  /* Get keymap entry */
  417                 kio->kio_entry = km[station];
  418                 break;
  419 
  420         case KIOCSKEY:  /* Set keymap entry */
  421                 km[station] = kio->kio_entry;
  422                 break;
  423 
  424         default:
  425                 return(ENOTTY);
  426         }
  427         return (0);
  428 }
  429 
  430 
  431 #ifdef KIOCGETKEY
  432 /*
  433  * Get/Set keymap entry,
  434  * old format (compatibility)
  435  */
  436 int
  437 kbd_oldkeymap(ks, cmd, kio)
  438         struct kbd_state *ks;
  439         u_long cmd;
  440         struct okiockey *kio;
  441 {
  442         int error = 0;
  443 
  444         switch (cmd) {
  445 
  446         case KIOCGETKEY:
  447                 if (kio->kio_station == 118) {
  448                         /*
  449                          * This is X11 asking if a type 3 keyboard is
  450                          * really a type 3 keyboard.  Say yes, it is,
  451                          * by reporting key station 118 as a "hole".
  452                          * Note old (SunOS 3.5) definition of HOLE!
  453                          */
  454                         kio->kio_entry = 0xA2;
  455                         break;
  456                 }
  457                 /* fall through */
  458 
  459         default:
  460                 error = ENOTTY;
  461                 break;
  462         }
  463 
  464         return (error);
  465 }
  466 #endif /* KIOCGETKEY */
  467 
  468 
  469 
  470 /****************************************************************
  471  *  Keyboard input - called by middle layer at spltty().
  472  ****************************************************************/
  473 
  474 void
  475 kbd_input(k, code)
  476         struct kbd_softc *k;
  477         int code;
  478 {
  479         if (k->k_evmode) {
  480 
  481 #ifdef KBD_IDLE_EVENTS
  482                 /*
  483                  * XXX: is this still true?
  484                  * IDLEs confuse the MIT X11R4 server badly, so we must drop them.
  485                  * This is bad as it means the server will not automatically resync
  486                  * on all-up IDLEs, but I did not drop them before, and the server
  487                  * goes crazy when it comes time to blank the screen....
  488                  */
  489                 if (code == KBD_IDLE)
  490                         return;
  491 #endif
  492 
  493                 /*
  494                  * Keyboard is generating firm events.  Turn this keystroke
  495                  * into an event and put it in the queue.
  496                  */
  497                 kbd_input_event(k, code);
  498                 return;
  499         }
  500 
  501 #if NWSKBD > 0
  502         if (k->k_wskbd != NULL && k->k_wsenabled) {
  503                 /*
  504                  * We are using wskbd input mode, pass the event up.
  505                  */
  506                 kbd_input_wskbd(k, code);
  507                 return;
  508         }
  509 #endif
  510 
  511         /*
  512          * If /dev/kbd is not connected in event mode, or wskbd mode,
  513          * translate and send upstream (to console).
  514          */
  515         kbd_input_console(k, code);
  516 }
  517 
  518 
  519 
  520 /****************************************************************
  521  *  Open/close routines called upon opening /dev/console
  522  *  if we serve console input.
  523  ****************************************************************/
  524 
  525 struct cons_channel *
  526 kbd_cc_alloc(k)
  527         struct kbd_softc *k;
  528 {
  529         struct cons_channel *cc;
  530 
  531         if ((cc = malloc(sizeof *cc, M_DEVBUF, M_NOWAIT)) == NULL)
  532                 return (NULL);
  533 
  534         /* our callbacks for the console driver */
  535         cc->cc_dev = k;
  536         cc->cc_iopen = kbd_cc_open;
  537         cc->cc_iclose = kbd_cc_close;
  538 
  539         /* will be provided by the console driver so that we can feed input */
  540         cc->cc_upstream = NULL;
  541 
  542         /*
  543          * TODO: clean up cons_attach_input() vs kd_attach_input() in
  544          * lower layers and move that code here.
  545          */
  546 
  547         k->k_cc = cc;
  548         return (cc);
  549 }
  550 
  551 
  552 static int
  553 kbd_cc_open(cc)
  554         struct cons_channel *cc;
  555 {
  556         struct kbd_softc *k;
  557         int ret;
  558 
  559         if (cc == NULL)
  560                 return (0);
  561 
  562         k = (struct kbd_softc *)cc->cc_dev;
  563         if (k == NULL)
  564                 return (0);
  565 
  566         if (k->k_ops != NULL && k->k_ops->open != NULL)
  567                 ret = (*k->k_ops->open)(k);
  568         else
  569                 ret = 0;
  570 
  571         /* XXX: verify that callout is not active? */
  572         k->k_repeat_start = hz/2;
  573         k->k_repeat_step = hz/20;
  574         callout_init(&k->k_repeat_ch);
  575 
  576         return (ret);
  577 }
  578 
  579 
  580 static int
  581 kbd_cc_close(cc)
  582         struct cons_channel *cc;
  583 {
  584         struct kbd_softc *k;
  585         int ret;
  586 
  587         if (cc == NULL)
  588                 return (0);
  589 
  590         k = (struct kbd_softc *)cc->cc_dev;
  591         if (k == NULL)
  592                 return (0);
  593 
  594         if (k->k_ops != NULL && k->k_ops->close != NULL)
  595                 ret = (*k->k_ops->close)(k);
  596         else
  597                 ret = 0;
  598 
  599         /* stop any pending auto-repeat */
  600         if (k->k_repeating) {
  601                 k->k_repeating = 0;
  602                 callout_stop(&k->k_repeat_ch);
  603         }
  604 
  605         return (ret);
  606 }
  607 
  608 
  609 
  610 /****************************************************************
  611  *  Console input - called by middle layer at spltty().
  612  ****************************************************************/
  613 
  614 static void
  615 kbd_input_console(k, code)
  616         struct kbd_softc *k;
  617         int code;
  618 {
  619         struct kbd_state *ks= &k->k_state;
  620         int keysym;
  621 
  622         /* any input stops auto-repeat (i.e. key release) */
  623         if (k->k_repeating) {
  624                 k->k_repeating = 0;
  625                 callout_stop(&k->k_repeat_ch);
  626         }
  627 
  628         keysym = kbd_code_to_keysym(ks, code);
  629 
  630         /* pass to console */
  631         if (kbd_input_keysym(k, keysym)) {
  632                 log(LOG_WARNING, "%s: code=0x%x with mod=0x%x"
  633                     " produced unexpected keysym 0x%x\n",
  634                     k->k_dev.dv_xname,
  635                     code, ks->kbd_modbits, keysym);
  636                 return;         /* no point in auto-repeat here */
  637         }
  638 
  639         if (KEYSYM_NOREPEAT(keysym))
  640                 return;
  641 
  642         /* setup for auto-repeat after initial delay */
  643         k->k_repeating = 1;
  644         k->k_repeatsym = keysym;
  645         callout_reset(&k->k_repeat_ch, k->k_repeat_start,
  646                       kbd_repeat, k);
  647 }
  648 
  649 
  650 /*
  651  * This is the autorepeat callout function scheduled by kbd_input() above.
  652  * Called at splsoftclock().
  653  */
  654 static void
  655 kbd_repeat(arg)
  656         void *arg;
  657 {
  658         struct kbd_softc *k = (struct kbd_softc *)arg;
  659         int s;
  660 
  661         s = spltty();
  662         if (k->k_repeating && k->k_repeatsym >= 0) {
  663                 /* feed typematic keysym to the console */
  664                 (void)kbd_input_keysym(k, k->k_repeatsym);
  665 
  666                 /* reschedule next repeat */
  667                 callout_reset(&k->k_repeat_ch, k->k_repeat_step,
  668                               kbd_repeat, k);
  669         }
  670         splx(s);
  671 }
  672 
  673 
  674 
  675 /*
  676  * Supply keysym as console input.  Convert keysym to character(s) and
  677  * pass them up to cons_channel's upstream hook.
  678  *
  679  * Return zero on success, else the keysym that we could not handle
  680  * (so that the caller may complain).
  681  */
  682 static int
  683 kbd_input_keysym(k, keysym)
  684         struct kbd_softc *k;
  685         int keysym;
  686 {
  687         struct kbd_state *ks = &k->k_state;
  688         int data;
  689 
  690         /* Check if a recipient has been configured */
  691         if (k->k_cc == NULL || k->k_cc->cc_upstream == NULL)
  692                 return (0);
  693 
  694         switch (KEYSYM_CLASS(keysym)) {
  695 
  696         case KEYSYM_ASCII:
  697                 data = KEYSYM_DATA(keysym);
  698                 if (ks->kbd_modbits & KBMOD_META_MASK)
  699                         data |= 0x80;
  700                 (*k->k_cc->cc_upstream)(data);
  701                 break;
  702 
  703         case KEYSYM_STRING:
  704                 data = keysym & 0xF;
  705                 kbd_input_string(k, kbd_stringtab[data]);
  706                 break;
  707 
  708         case KEYSYM_FUNC:
  709                 kbd_input_funckey(k, keysym);
  710                 break;
  711 
  712         case KEYSYM_CLRMOD:
  713                 data = 1 << (keysym & 0x1F);
  714                 ks->kbd_modbits &= ~data;
  715                 break;
  716 
  717         case KEYSYM_SETMOD:
  718                 data = 1 << (keysym & 0x1F);
  719                 ks->kbd_modbits |= data;
  720                 break;
  721 
  722         case KEYSYM_INVMOD:
  723                 data = 1 << (keysym & 0x1F);
  724                 ks->kbd_modbits ^= data;
  725                 kbd_update_leds(k);
  726                 break;
  727 
  728         case KEYSYM_ALL_UP:
  729                 ks->kbd_modbits &= ~0xFFFF;
  730                 break;
  731 
  732         case KEYSYM_SPECIAL:
  733                 if (keysym == KEYSYM_NOP)
  734                         break;
  735                 /* FALLTHROUGH */
  736         default:
  737                 /* We could not handle it. */
  738                 return (keysym);
  739         }
  740 
  741         return (0);
  742 }
  743 
  744 
  745 /*
  746  * Send string upstream.
  747  */
  748 static void
  749 kbd_input_string(k, str)
  750         struct kbd_softc *k;
  751         char *str;
  752 {
  753 
  754         while (*str) {
  755                 (*k->k_cc->cc_upstream)(*str);
  756                 ++str;
  757         }
  758 }
  759 
  760 
  761 /*
  762  * Format the F-key sequence and send as a string.
  763  * XXX: Ugly compatibility mappings.
  764  */
  765 static void
  766 kbd_input_funckey(k, keysym)
  767         struct kbd_softc *k;
  768         int keysym;
  769 {
  770         int n;
  771         char str[12];
  772 
  773         n = 0xC0 + (keysym & 0x3F);
  774         sprintf(str, "\033[%dz", n);
  775         kbd_input_string(k, str);
  776 }
  777 
  778 
  779 /*
  780  * Update LEDs to reflect console input state.
  781  */
  782 static void
  783 kbd_update_leds(k)
  784         struct kbd_softc *k;
  785 {
  786         struct kbd_state *ks = &k->k_state;
  787         char leds;
  788 
  789         leds = ks->kbd_leds;
  790         leds &= ~(LED_CAPS_LOCK|LED_NUM_LOCK);
  791 
  792         if (ks->kbd_modbits & (1 << KBMOD_CAPSLOCK))
  793                 leds |= LED_CAPS_LOCK;
  794         if (ks->kbd_modbits & (1 << KBMOD_NUMLOCK))
  795                 leds |= LED_NUM_LOCK;
  796 
  797         if (k->k_ops != NULL && k->k_ops->setleds != NULL)
  798                 (void)(*k->k_ops->setleds)(k, leds, 0);
  799 }
  800 
  801 
  802 
  803 /****************************************************************
  804  *  Events input - called by middle layer at spltty().
  805  ****************************************************************/
  806 
  807 /*
  808  * Supply raw keystrokes when keyboard is open in firm event mode.
  809  *
  810  * Turn the keystroke into an event and put it in the queue.
  811  * If the queue is full, the keystroke is lost (sorry!).
  812  */
  813 static void
  814 kbd_input_event(k, code)
  815         struct kbd_softc *k;
  816         int code;
  817 {
  818         struct firm_event *fe;
  819         int put;
  820 
  821 #ifdef DIAGNOSTIC
  822         if (!k->k_evmode) {
  823                 printf("%s: kbd_input_event called when not in event mode\n",
  824                        k->k_dev.dv_xname);
  825                 return;
  826         }
  827 #endif
  828         put = k->k_events.ev_put;
  829         fe = &k->k_events.ev_q[put];
  830         put = (put + 1) % EV_QSIZE;
  831         if (put == k->k_events.ev_get) {
  832                 log(LOG_WARNING, "%s: event queue overflow\n",
  833                     k->k_dev.dv_xname);
  834                 return;
  835         }
  836 
  837         fe->id = KEY_CODE(code);
  838         fe->value = KEY_UP(code) ? VKEY_UP : VKEY_DOWN;
  839         fe->time = time;
  840         k->k_events.ev_put = put;
  841         EV_WAKEUP(&k->k_events);
  842 }
  843 
  844 
  845 
  846 /****************************************************************
  847  *  Translation stuff declared in kbd_xlate.h
  848  ****************************************************************/
  849 
  850 /*
  851  * Initialization - called by either lower layer attach or by kdcninit.
  852  */
  853 void
  854 kbd_xlate_init(ks)
  855         struct kbd_state *ks;
  856 {
  857         struct keyboard *ktbls;
  858         int id;
  859 
  860         id = ks->kbd_id;
  861         if (id < KBD_MIN_TYPE)
  862                 id = KBD_MIN_TYPE;
  863         if (id > kbd_max_type)
  864                 id = kbd_max_type;
  865         ktbls = keyboards[id];
  866 
  867         ks->kbd_k = *ktbls;     /* struct assignment */
  868         ks->kbd_modbits = 0;
  869 }
  870 
  871 /*
  872  * Turn keyboard up/down codes into a KEYSYM.
  873  * Note that the "kd" driver (on sun3 and sparc64) uses this too!
  874  */
  875 int
  876 kbd_code_to_keysym(ks, c)
  877         struct kbd_state *ks;
  878         int c;
  879 {
  880         u_short *km;
  881         int keysym;
  882 
  883         /*
  884          * Get keymap pointer.  One of these:
  885          * release, control, shifted, normal, ...
  886          */
  887         if (KEY_UP(c))
  888                 km = ks->kbd_k.k_release;
  889         else if (ks->kbd_modbits & KBMOD_CTRL_MASK)
  890                 km = ks->kbd_k.k_control;
  891         else if (ks->kbd_modbits & KBMOD_SHIFT_MASK)
  892                 km = ks->kbd_k.k_shifted;
  893         else
  894                 km = ks->kbd_k.k_normal;
  895 
  896         if (km == NULL) {
  897                 /*
  898                  * Do not know how to translate yet.
  899                  * We will find out when a RESET comes along.
  900                  */
  901                 return (KEYSYM_NOP);
  902         }
  903         keysym = km[KEY_CODE(c)];
  904 
  905         /*
  906          * Post-processing for Caps-lock
  907          */
  908         if ((ks->kbd_modbits & (1 << KBMOD_CAPSLOCK)) &&
  909                 (KEYSYM_CLASS(keysym) == KEYSYM_ASCII) )
  910         {
  911                 if (('a' <= keysym) && (keysym <= 'z'))
  912                         keysym -= ('a' - 'A');
  913         }
  914 
  915         /*
  916          * Post-processing for Num-lock.  All "function"
  917          * keysyms get indirected through another table.
  918          * (XXX: Only if numlock on.  Want off also!)
  919          */
  920         if ((ks->kbd_modbits & (1 << KBMOD_NUMLOCK)) &&
  921                 (KEYSYM_CLASS(keysym) == KEYSYM_FUNC) )
  922         {
  923                 keysym = kbd_numlock_map[keysym & 0x3F];
  924         }
  925 
  926         return (keysym);
  927 }
  928 
  929 
  930 /*
  931  * Back door for rcons (fb.c)
  932  */
  933 void
  934 kbd_bell(on)
  935         int on;
  936 {
  937         struct kbd_softc *k = kbd_cd.cd_devs[0]; /* XXX: hardcoded minor */
  938 
  939         if (k == NULL || k->k_ops == NULL || k->k_ops->docmd == NULL)
  940                 return;
  941 
  942         (void)(*k->k_ops->docmd)(k, on ? KBD_CMD_BELL : KBD_CMD_NOBELL, 0);
  943 }
  944 
  945 #if NWSKBD > 0
  946 static void
  947 kbd_input_wskbd(struct kbd_softc *k, int code)
  948 {
  949         int type, key;
  950 
  951         type = KEY_UP(code) ? WSCONS_EVENT_KEY_UP : WSCONS_EVENT_KEY_DOWN;
  952         key = KEY_CODE(code);
  953         wskbd_input(k->k_wskbd, type, key);
  954 }
  955 
  956 int
  957 wssunkbd_enable(v, on)
  958         void *v;
  959         int on;
  960 {
  961         struct kbd_softc *k = v;
  962 
  963         k->k_wsenabled = on;
  964         if (on) {
  965                 /* open actual underlying device */
  966                 if (k->k_ops != NULL && k->k_ops->open != NULL)
  967                         (*k->k_ops->open)(k);
  968                 ev_init(&k->k_events);
  969                 k->k_evmode = 0;        /* XXX: OK? */
  970         } else {
  971                 /* close underlying device */
  972                 if (k->k_ops != NULL && k->k_ops->close != NULL)
  973                         (*k->k_ops->close)(k);
  974         }
  975         
  976         return 0;
  977 }
  978 
  979 void
  980 wssunkbd_set_leds(v, leds)
  981         void *v;
  982         int leds;
  983 {
  984         struct kbd_softc *k = v;
  985         int l = 0;
  986 
  987         if (leds & WSKBD_LED_CAPS)
  988                 l |= LED_CAPS_LOCK;
  989         if (leds & WSKBD_LED_NUM)
  990                 l |= LED_NUM_LOCK;
  991         if (leds & WSKBD_LED_SCROLL)
  992                 l |= LED_SCROLL_LOCK;
  993         if (leds & WSKBD_LED_COMPOSE)
  994                 l |= LED_COMPOSE;
  995         if (k->k_ops != NULL && k->k_ops->setleds != NULL)
  996                 (*k->k_ops->setleds)(k, l, 0);
  997 }
  998 
  999 int
 1000 wssunkbd_ioctl(v, cmd, data, flag, p)
 1001         void *v;
 1002         u_long cmd;
 1003         caddr_t data;
 1004         int flag;
 1005         struct proc *p;
 1006 {
 1007         return EPASSTHROUGH;
 1008 }
 1009 
 1010 void
 1011 sunkbd_wskbd_cngetc(v, type, data)
 1012         void *v;
 1013         u_int *type;
 1014         int *data;
 1015 {
 1016         /* struct kbd_sun_softc *k = v; */
 1017 }
 1018 
 1019 void
 1020 sunkbd_wskbd_cnpollc(v, on)
 1021         void *v;
 1022         int on;
 1023 {
 1024 }
 1025 
 1026 static void
 1027 sunkbd_bell_off(v)
 1028         void *v;
 1029 {
 1030         struct kbd_softc *k = v;
 1031         k->k_ops->docmd(k, KBD_CMD_NOBELL, 0);
 1032 }
 1033 
 1034 void
 1035 sunkbd_wskbd_cnbell(v, pitch, period, volume)
 1036         void *v;
 1037         u_int pitch, period, volume;
 1038 {
 1039         struct kbd_softc *k = v;
 1040 
 1041         callout_reset(&k->k_wsbell, period*1000/hz, sunkbd_bell_off, v);
 1042         k->k_ops->docmd(k, KBD_CMD_BELL, 0);
 1043 }
 1044 
 1045 void
 1046 kbd_wskbd_attach(k, isconsole)
 1047         struct kbd_softc *k;
 1048         int isconsole;
 1049 {
 1050         struct wskbddev_attach_args a;
 1051 
 1052         a.console = isconsole;
 1053 
 1054         if (a.console)
 1055                 wskbd_cnattach(&sunkbd_wskbd_consops, k, &sunkbd_wskbd_keymapdata);
 1056 
 1057         a.keymap = &sunkbd_wskbd_keymapdata;
 1058 
 1059         a.accessops = &sunkbd_wskbd_accessops;
 1060         a.accesscookie = k;
 1061 
 1062         /* Attach the wskbd */
 1063         k->k_wskbd = config_found(&k->k_dev, &a, wskbddevprint);
 1064         k->k_wsenabled = 0;
 1065         callout_init(&k->k_wsbell);
 1066 }
 1067 #endif
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FreeBSD/Linux Kernel Cross Reference sys/dev/sun/kbd.c

FreeBSD/Linux Kernel Cross Reference
sys/dev/sun/kbd.c
