/*      $NetBSD: akbd.c,v 1.30 2026/05/23 20:52:49 nat Exp $    */

/*
 * Copyright (C) 1998   Colin Wood
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 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. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *      This product includes software developed by Colin Wood.
 * 4. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: akbd.c,v 1.30 2026/05/23 20:52:49 nat Exp $");

#include "opt_adb.h"

#include <sys/param.h>
#include <sys/device.h>
#include <sys/fcntl.h>
#include <sys/poll.h>
#include <sys/select.h>
#include <sys/proc.h>
#include <sys/signalvar.h>
#include <sys/systm.h>
#include <sys/kernel.h>

#include "aed.h"
#include "wskbd.h"

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

#include <machine/autoconf.h>
#include <machine/cpu.h>
#define KEYBOARD_ARRAY
#include <machine/keyboard.h>
#include <machine/viareg.h>

#include <mac68k/mac68k/macrom.h>
#include <mac68k/dev/adbvar.h>
#include <mac68k/dev/aedvar.h>
#include <mac68k/dev/akbdmap.h>
#include <mac68k/dev/akbdvar.h>
#include <mac68k/dev/amsvar.h>

/*
 * Function declarations.
 */
static int      akbdmatch(device_t, cfdata_t, void *);
static void     akbdattach(device_t, device_t, void *);
static void     kbd_processevent(adb_event_t *, struct akbd_softc *);
#ifdef notyet
static u_char   getleds(int);
static int      setleds(struct akbd_softc *, u_char);
static void     blinkleds(struct akbd_softc *);
#endif

/*
 * Local variables.
 */

/* Driver definition. */
CFATTACH_DECL_NEW(akbd, sizeof(struct akbd_softc),
    akbdmatch, akbdattach, NULL, NULL);

extern struct cfdriver akbd_cd;

int kbd_intr(adb_event_t *, struct akbd_softc *);
int akbd_enable(void *, int);
void akbd_set_leds(void *, int);
int akbd_ioctl(void *, u_long, void *, int, struct lwp *);

struct wskbd_accessops akbd_accessops = {
        akbd_enable,
        akbd_set_leds,
        akbd_ioctl,
};

void akbd_cngetc(void *, u_int *, int *);
void akbd_cnpollc(void *, int);
int akbd_cnattach(void);

struct wskbd_consops akbd_consops = {
        akbd_cngetc,
        akbd_cnpollc,
};

struct wskbd_mapdata akbd_keymapdata = {
        akbd_keydesctab,
        KB_US,
};

int leds;
static int akbd_is_console(void);

static int
akbdmatch(device_t parent, cfdata_t cf, void *aux)
{
        struct adb_attach_args *aa_args = (struct adb_attach_args *)aux;

        if (aa_args->origaddr == ADBADDR_KBD)
                return 1;
        else
                return 0;
}

static void
akbdattach(device_t parent, device_t self, void *aux)
{
        ADBSetInfoBlock adbinfo;
        struct akbd_softc *sc = device_private(self);
        struct adb_attach_args *aa_args = (struct adb_attach_args *)aux;
        int error __unused, kbd_done;
        short cmd;
        u_char buffer[9];
#if NWSKBD > 0
        struct wskbddev_attach_args a;
        static int akbd_console_initted;
        int wskbd_eligible;

        wskbd_eligible = 1;
#endif

        sc->origaddr = aa_args->origaddr;
        sc->adbaddr = aa_args->adbaddr;
        sc->handler_id = aa_args->handler_id;

        sc->sc_leds = (u_int8_t)0x00;   /* initially off */

        adbinfo.siServiceRtPtr = (Ptr)adb_kbd_asmcomplete;
        adbinfo.siDataAreaAddr = (void *)sc;

        switch (sc->handler_id) {
        case ADB_STDKBD:
                printf("standard keyboard\n");
                break;
        case ADB_ISOKBD:
                printf("standard keyboard (ISO layout)\n");
                break;
        case ADB_EXTKBD:
                cmd = ADBTALK(sc->adbaddr, 1);
                kbd_done =
                    (adb_op_sync((Ptr)buffer, (Ptr)0, (Ptr)0, cmd) == 0);

                /* Ignore Logitech MouseMan/Trackman pseudo keyboard */
                if (kbd_done && buffer[1] == 0x9a && buffer[2] == 0x20) {
                        printf("Mouseman (non-EMP) pseudo keyboard\n");
                        adbinfo.siServiceRtPtr = (Ptr)0;
                        adbinfo.siDataAreaAddr = (Ptr)0;
#if NWSKBD > 0
                        wskbd_eligible = 0;
#endif /* NWSKBD > 0 */
                } else if (kbd_done && buffer[1] == 0x9a && buffer[2] == 0x21) {
                        printf("Trackman (non-EMP) pseudo keyboard\n");
                        adbinfo.siServiceRtPtr = (Ptr)0;
                        adbinfo.siDataAreaAddr = (Ptr)0;
#if NWSKBD > 0
                        wskbd_eligible = 0;
#endif /* NWSKBD > 0 */
                } else {
                        printf("extended keyboard\n");
#ifdef notyet  
                        blinkleds(sc);
#endif
                }
                break;
        case ADB_EXTISOKBD:
                printf("extended keyboard (ISO layout)\n");
#ifdef notyet
                blinkleds(sc);
#endif
                break;
        case ADB_KBDII:
                printf("keyboard II\n");
                break;
        case ADB_ISOKBDII:
                printf("keyboard II (ISO layout)\n");
                break;
        case ADB_PBKBD:
                printf("PowerBook keyboard\n");
                break;
        case ADB_PBISOKBD:
                printf("PowerBook keyboard (ISO layout)\n");
                break;
        case ADB_ADJKPD:
                printf("adjustable keypad\n");
#if NWSKBD > 0
                wskbd_eligible = 0;
#endif /* NWSKBD > 0 */
                break;
        case ADB_ADJKBD:
                printf("adjustable keyboard\n");
                break;
        case ADB_ADJISOKBD:
                printf("adjustable keyboard (ISO layout)\n");
                break;
        case ADB_ADJJAPKBD:
                printf("adjustable keyboard (Japanese layout)\n");
                break;
        case ADB_PBEXTISOKBD:
                printf("PowerBook extended keyboard (ISO layout)\n");
                break;
        case ADB_PBEXTJAPKBD:
                printf("PowerBook extended keyboard (Japanese layout)\n");
                break;
        case ADB_JPKBDII:
                printf("keyboard II (Japanese layout)\n");
                break;
        case ADB_PBEXTKBD:
                printf("PowerBook extended keyboard\n");
                break;
        case ADB_DESIGNKBD:
                printf("extended keyboard\n");
#ifdef notyet
                blinkleds(sc);
#endif
                break;
        case ADB_PBJPKBD:
                printf("PowerBook keyboard (Japanese layout)\n");
                break;
        default:
                printf("mapped device (%d)\n", sc->handler_id);
#if NWSKBD > 0
                wskbd_eligible = 0;
#endif /* NWSKBD > 0 */
                break;
        }
        error = SetADBInfo(&adbinfo, sc->adbaddr);
#ifdef ADB_DEBUG
        if (adb_debug)
                printf("akbd: returned %d from SetADBInfo\n", error);
#endif

#if NWSKBD > 0
        if (akbd_is_console() && wskbd_eligible)
                a.console = (++akbd_console_initted == 1);
        else
                a.console = 0;
        a.keymap = &akbd_keymapdata;
        a.accessops = &akbd_accessops;
        a.accesscookie = sc;

        sc->sc_wskbddev = config_found(self, &a, wskbddevprint, CFARGS_NONE);
#endif
}


/*
 * Handle putting the keyboard data received from the ADB into
 * an ADB event record.
 */
void 
kbd_adbcomplete(uint8_t *buffer, void *data_area, int adb_command)
{
        adb_event_t event;
        struct akbd_softc *ksc;
        int adbaddr;
#ifdef ADB_DEBUG
        int i;

        if (adb_debug)
                printf("adb: transaction completion\n");
#endif

        adbaddr = ADB_CMDADDR(adb_command);
        ksc = (struct akbd_softc *)data_area;

        event.addr = adbaddr;
        event.hand_id = ksc->handler_id;
        event.def_addr = ksc->origaddr;
        event.byte_count = buffer[0];
        memcpy(event.bytes, buffer + 1, event.byte_count);

#ifdef ADB_DEBUG
        if (adb_debug) {
                printf("akbd: from %d at %d (org %d) %d:", event.addr,
                    event.hand_id, event.def_addr, buffer[0]);
                for (i = 1; i <= buffer[0]; i++)
                        printf(" %x", buffer[i]);
                printf("\n");
        }
#endif

        microtime(&event.timestamp);

        kbd_processevent(&event, ksc);
}

/*
 * Given a keyboard ADB event, record the keycodes and call the key 
 * repeat handler, optionally passing the event through the mouse
 * button emulation handler first.
 */
static void
kbd_processevent(adb_event_t *event, struct akbd_softc *ksc)
{
        adb_event_t new_event;

        new_event = *event;
        new_event.u.k.key = event->bytes[0];
        new_event.bytes[1] = 0xff;
#if NAED > 0
        int result;

        if ((result = aed_input(&new_event)) != 0)
                return;

        if (adb_polling || !result)
#endif
#if NWSKBD > 0
                if (ksc->sc_wskbddev != NULL) /* wskbd is attached? */
                        kbd_intr(&new_event, ksc);
#else
                /* do nothing */ ;
#endif
        if (event->bytes[1] != 0xff) {
                new_event.u.k.key = event->bytes[1];
                new_event.bytes[0] = event->bytes[1];
                new_event.bytes[1] = 0xff;
#if NAED > 0
                if (adb_polling || !aed_input(&new_event))
#endif
#if NWSKBD > 0
                        if (ksc->sc_wskbddev != NULL) /* wskbd is attached? */
                                kbd_intr(&new_event, ksc);
#else
                        /* do nothing */ ;
#endif
        }

}

#ifdef notyet
/*
 * Get the actual hardware LED state and convert it to softc format.
 */
static u_char
getleds(int addr)
{
        short cmd;
        u_char buffer[9], leds;

        leds = 0x00;    /* all off */
        buffer[0] = 0;

        cmd = ADBTALK(addr, 2);
        if (adb_op_sync((Ptr)buffer, (Ptr)0, (Ptr)0, cmd) == 0 &&
            buffer[0] > 0)
                leds = ~(buffer[2]) & 0x07;

        return (leds);
}

/*
 * Set the keyboard LED's.
 * 
 * Automatically translates from ioctl/softc format to the
 * actual keyboard register format
 */
static int 
setleds(struct akbd_softc *ksc, u_char leds)
{
        int addr;
        short cmd;
        u_char buffer[9];

        if ((leds & 0x07) == (ksc->sc_leds & 0x07))
                return (0);

        addr = ksc->adbaddr;
        buffer[0] = 0;

        cmd = ADBTALK(addr, 2);
        if (adb_op_sync((Ptr)buffer, (Ptr)0, (Ptr)0, cmd) || buffer[0] == 0)
                return (EIO);

        leds = ~leds & 0x07;
        buffer[2] &= 0xf8;
        buffer[2] |= leds;

        cmd = ADBLISTEN(addr, 2);
        adb_op_sync((Ptr)buffer, (Ptr)0, (Ptr)0, cmd);

        /* talk R2 */
        cmd = ADBTALK(addr, 2);
        if (adb_op_sync((Ptr)buffer, (Ptr)0, (Ptr)0, cmd) || buffer[0] == 0)
                return (EIO);

        ksc->sc_leds = ~((u_int8_t)buffer[2]) & 0x07;

        if ((buffer[2] & 0xf8) != leds)
                return (EIO);
        else
                return (0); 
}

/*
 * Toggle all of the LED's on and off, just for show.
 */
static void 
blinkleds(struct akbd_softc *ksc)
{
        int addr, i;
        u_char blinkleds, origleds;

        addr = ksc->adbaddr;
        origleds = getleds(addr);
        blinkleds = LED_NUMLOCK | LED_CAPSLOCK | LED_SCROLL_LOCK;

        (void)setleds(ksc, blinkleds);

        for (i = 0; i < 10000; i++)
                delay(50);

        /* make sure that we restore the LED settings */
        i = 10;
        do {
                (void)setleds(ksc, (u_char)origleds);
        } while (setleds(ksc, (u_char)origleds) && (i-- > 0)); 

        return;
}
#endif

int
akbd_is_console(void)
{
        extern struct mac68k_machine_S mac68k_machine;

        return ((mac68k_machine.serial_console & 0x03) == 0);
}

int
akbd_enable(void *v, int on)
{
        return 0;
}

void
akbd_set_leds(void *v, int on)
{
        leds = on;
}

int
akbd_ioctl(void *v, u_long cmd, void *data, int flag, struct lwp *l)
{
#ifdef WSDISPLAY_COMPAT_RAWKBD
        struct akbd_softc *ksc = (struct akbd_softc *) v;
#endif

        switch (cmd) {

        case WSKBDIO_GTYPE:
                *(int *)data = WSKBD_TYPE_ADB;
                return 0;
        case WSKBDIO_SETLEDS:
#ifdef notyet
                setleds(ksc, *(int *)data);
#else
                leds = *(int *)data;
#endif
                return 0;
        case WSKBDIO_GETLEDS:
#ifdef notyet
                *(int *)data = getleds(ksc->adbaddr);
#else
                *(int *)data = leds;
#endif
                return 0;
        case WSKBDIO_COMPLEXBELL:
#define d ((struct wskbd_bell_data *)data)
                mac68k_ring_bell(d->pitch, d->period * hz / 1000, 100);
                /* comes in as msec, goes out as ticks; volume ignored */
#undef d
                return (0);
#ifdef WSDISPLAY_COMPAT_RAWKBD
        case WSKBDIO_SETMODE:
                ksc->sc_rawkbd = *(int *)data == WSKBD_RAW;
                return (0);
#endif
        }
        /* kbdioctl(...); */

        return EPASSTHROUGH;
}

static int polledkey;
extern int adb_polling;

int
kbd_intr(adb_event_t *event, struct akbd_softc *sc)
{
        int key, press, val;
        int type;

        key = event->u.k.key;
        press = ADBK_PRESS(key);
        val = ADBK_KEYVAL(key);

        type = press ? WSCONS_EVENT_KEY_DOWN : WSCONS_EVENT_KEY_UP;

        if (key == 185) {       /* Caps Lock released */
                type = WSCONS_EVENT_KEY_DOWN;
                wskbd_input(sc->sc_wskbddev, type, val);
                type = WSCONS_EVENT_KEY_UP;
        }

        if (adb_polling)
                polledkey = key;
#ifdef WSDISPLAY_COMPAT_RAWKBD
        else if (sc->sc_rawkbd) {
                char cbuf[2];
                int s;
                int j = 0;
                int c = keyboard[ADBK_KEYVAL(key)][3];

                if (c == 0)                     /* XXX */
                        return (0);

                if (c & 0x80)
                        cbuf[j++] = 0xe0;

                cbuf[j++] = (c & 0x7f) | (ADBK_PRESS(key)? 0 : 0x80);

                s = spltty();
                wskbd_rawinput(sc->sc_wskbddev, cbuf, j);
                splx(s);
        }
#endif
        else
                wskbd_input(sc->sc_wskbddev, type, val);

        return 0;
}

int
akbd_cnattach(void)
{
        wskbd_cnattach(&akbd_consops, NULL, &akbd_keymapdata);

        return 0;
}

void
akbd_cngetc(void *v, u_int *type, int *data)
{
        int intbits, key, press, val;
        int s;

        s = splhigh();

        polledkey = -1;
        adb_polling = 1;

        while (polledkey == -1) {
                intbits = via_reg(VIA1, vIFR);

                if (intbits & V1IF_ADBRDY) {
                        mrg_adbintr();
                        via_reg(VIA1, vIFR) = V1IF_ADBRDY;
                }
                if (intbits & 0x10) {
                        mrg_pmintr();
                        via_reg(VIA1, vIFR) = 0x10;
                }
        }

        adb_polling = 0;
        splx(s);

        key = polledkey;
        press = ADBK_PRESS(key);
        val = ADBK_KEYVAL(key);

        *data = val;
        *type = press ? WSCONS_EVENT_KEY_DOWN : WSCONS_EVENT_KEY_UP;
}

void
akbd_cnpollc(void *v, int on)
{
}