/*      $NetBSD: dzkbd.c,v 1.35 2025/04/06 03:36:13 riastradh Exp $     */

/*
 * Copyright (c) 1992, 1993
 *      The Regents of the University of California.  All rights reserved.
 *
 * This software was developed by the Computer Systems Engineering group
 * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
 * contributed to Berkeley.
 *
 * All advertising materials mentioning features or use of this software
 * must display the following acknowledgement:
 *      This product includes software developed by the University of
 *      California, Lawrence Berkeley Laboratory.
 *
 * 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.
 *
 *      @(#)kbd.c       8.2 (Berkeley) 10/30/93
 */

/*
 * LK200/LK400 keyboard attached to line 0 of the DZ*-11
 */

#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: dzkbd.c,v 1.35 2025/04/06 03:36:13 riastradh Exp $");

#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <sys/ioctl.h>
#include <sys/syslog.h>
#include <sys/malloc.h>
#include <sys/intr.h>

#include <dev/wscons/wsconsio.h>
#include <dev/wscons/wskbdvar.h>
#include <dev/wscons/wsksymdef.h>
#include <dev/wscons/wsksymvar.h>
#include <dev/dec/wskbdmap_lk201.h>

#include <sys/bus.h>

#include <dev/dec/dzreg.h>
#include <dev/dec/dzvar.h>
#include <dev/dec/dzkbdvar.h>
#include <dev/dec/lk201reg.h>
#include <dev/dec/lk201var.h>

#include "locators.h"

struct dzkbd_internal {
        struct dz_linestate *dzi_ls;
        struct lk201_state dzi_ks;
};

struct dzkbd_internal dzkbd_console_internal;

struct dzkbd_softc {
        struct dzkbd_internal *sc_itl;

        int sc_enabled;
        int kbd_type;

        device_t sc_wskbddev;
};

static int      dzkbd_input(void *, int);

static int      dzkbd_match(device_t, cfdata_t, void *);
static void     dzkbd_attach(device_t, device_t, void *);

CFATTACH_DECL_NEW(dzkbd, sizeof(struct dzkbd_softc),
    dzkbd_match, dzkbd_attach, NULL, NULL);

static int      dzkbd_enable(void *, int);
static void     dzkbd_set_leds(void *, int);
static int      dzkbd_ioctl(void *, u_long, void *, int, struct lwp *);

const struct wskbd_accessops dzkbd_accessops = {
        dzkbd_enable,
        dzkbd_set_leds,
        dzkbd_ioctl,
};

static void     dzkbd_cngetc(void *, u_int *, int *);
static void     dzkbd_cnpollc(void *, int);

const struct wskbd_consops dzkbd_consops = {
        dzkbd_cngetc,
        dzkbd_cnpollc,
};

static int dzkbd_sendchar(void *, u_char);

const struct wskbd_mapdata dzkbd_keymapdata = {
        lkkbd_keydesctab,
#ifdef DZKBD_LAYOUT
        DZKBD_LAYOUT,
#else
        KB_US | KB_LK401,
#endif
};

/*
 * kbd_match: how is this dz line configured?
 */
static int
dzkbd_match(device_t parent, cfdata_t cf, void *aux)
{
        struct dzkm_attach_args *daa = aux;

        /* Exact match is better than wildcard. */
        if (cf->cf_loc[DZCF_LINE] == daa->daa_line)
                return 2;

        /* This driver accepts wildcard. */
        if (cf->cf_loc[DZCF_LINE] == DZCF_LINE_DEFAULT)
                return 1;

        return 0;
}

static void
dzkbd_attach(device_t parent, device_t self, void *aux)
{
        struct dz_softc *dz = device_private(parent);
        struct dzkbd_softc *dzkbd = device_private(self);
        struct dzkm_attach_args *daa = aux;
        struct dz_linestate *ls;
        struct dzkbd_internal *dzi;
        struct wskbddev_attach_args a;
        int isconsole;

        dz->sc_dz[daa->daa_line].dz_catch = dzkbd_input;
        dz->sc_dz[daa->daa_line].dz_private = dzkbd;
        ls = &dz->sc_dz[daa->daa_line];

        isconsole = (daa->daa_flags & DZKBD_CONSOLE);

        if (isconsole)
                dzi = &dzkbd_console_internal;
        else
                dzi = malloc(sizeof(struct dzkbd_internal), M_DEVBUF, M_WAITOK);

        dzi->dzi_ks.attmt.sendchar = dzkbd_sendchar;
        dzi->dzi_ks.attmt.cookie = ls;
        dzi->dzi_ls = ls;
        dzkbd->sc_itl = dzi;

        aprint_normal("\n");

        DELAY(100000);
        lk201_init(&dzi->dzi_ks);

        /*
         * Set the keyboard type according to what lk201_init()
         * detected.
         *
         * XXX: should also do something about the layout, which
         * presently hardcodes LK401 layout.
         */
        switch (dzi->dzi_ks.kbdtype) {
        default:
        case KBD_LK201:
                dzkbd->kbd_type = WSKBD_TYPE_LK201;
                break;

        case KBD_LK401:
                dzkbd->kbd_type = WSKBD_TYPE_LK401;
                break;
        }

        dzkbd->sc_enabled = 1;

        a.console = isconsole;
        a.keymap = &dzkbd_keymapdata;
        a.accessops = &dzkbd_accessops;
        a.accesscookie = dzkbd;

        dzkbd->sc_wskbddev = config_found(self, &a, wskbddevprint, CFARGS_NONE);
}

int
dzkbd_cnattach(struct dz_linestate *ls)
{

        dzkbd_console_internal.dzi_ks.attmt.sendchar = dzkbd_sendchar;
        dzkbd_console_internal.dzi_ks.attmt.cookie = ls;
        lk201_init(&dzkbd_console_internal.dzi_ks);
        dzkbd_console_internal.dzi_ls = ls;

        wskbd_cnattach(&dzkbd_consops, &dzkbd_console_internal,
                       &dzkbd_keymapdata);

        return 0;
}

static int
dzkbd_enable(void *v, int on)
{
        struct dzkbd_softc *sc = v;

        sc->sc_enabled = on;
        return 0;
}

static int
dzkbd_sendchar(void *v, u_char c)
{
        struct dz_linestate *ls = v;
        int s;

        s = spltty();
        dzputc(ls, c);
        splx(s);
        return (0);
}

static void
dzkbd_cngetc(void *v, u_int *type, int *data)
{
        struct dzkbd_internal *dzi = v;
        int c;

        do {
                c = dzgetc(dzi->dzi_ls);
        } while (lk201_decode(&dzi->dzi_ks, 0, c, type, data) == LKD_NODATA);
}

static void
dzkbd_cnpollc(void *v, int on)
{
#if 0
        struct dzkbd_internal *dzi = v;
#endif
}

static void
dzkbd_set_leds(void *v, int leds)
{
        struct dzkbd_softc *sc = (struct dzkbd_softc *)v;

//printf("dzkbd_set_leds\n");
        lk201_set_leds(&sc->sc_itl->dzi_ks, leds);
}

static int
dzkbd_ioctl(void *v, u_long cmd, void *data, int flag, struct lwp *l)
{
        struct dzkbd_softc *sc = (struct dzkbd_softc *)v;

        switch (cmd) {
        case WSKBDIO_GTYPE:
                *(int *)data = sc->kbd_type;
                return 0;
        case WSKBDIO_SETLEDS:
                lk201_set_leds(&sc->sc_itl->dzi_ks, *(int *)data);
                return 0;
        case WSKBDIO_GETLEDS:
                /* XXX don't dig in kbd internals */
                *(int *)data = sc->sc_itl->dzi_ks.leds_state;
                return 0;
        case WSKBDIO_COMPLEXBELL:
                lk201_bell(&sc->sc_itl->dzi_ks,
                           (struct wskbd_bell_data *)data);
                return 0;
        case WSKBDIO_SETKEYCLICK:
                lk201_set_keyclick(&sc->sc_itl->dzi_ks, *(int *)data);
                return 0;
        case WSKBDIO_GETKEYCLICK:
                /* XXX don't dig in kbd internals */
                *(int *)data = sc->sc_itl->dzi_ks.kcvol;
                return 0;
        }
        return (EPASSTHROUGH);
}

static int
dzkbd_input(void *v, int data)
{
        struct dzkbd_softc *sc = (struct dzkbd_softc *)v;
        u_int type;
        int val;
        int decode;

        do {
                decode = lk201_decode(&sc->sc_itl->dzi_ks, 1,
                    data, &type, &val);
                if (decode != LKD_NODATA)
                        wskbd_input(sc->sc_wskbddev, type, val);
        } while (decode == LKD_MORE);

        return(1);
}