NetBSD/sys/arch/hpcmips/dev/hpckbd.c

/*	$NetBSD: hpckbd.c,v 1.4 2000/10/22 10:42:31 uch Exp $ */

/*-
 * Copyright (c) 1999, 2000 UCHIYAMA Yasushi.  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. 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 "opt_tx39xx.h"

#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>

#include <sys/tty.h> 

#include <machine/bus.h>
#include <machine/intr.h>

#include <machine/config_hook.h>
#include <machine/platid.h>
#include <machine/platid_mask.h>

#include "opt_wsdisplay_compat.h"
#include "opt_pckbd_layout.h"
#include <dev/wscons/wsksymdef.h>
#include <dev/wscons/wsconsio.h>
#include <dev/wscons/wskbdvar.h>
#include <dev/wscons/wsksymdef.h>
#include <dev/wscons/wsksymvar.h>
#include <dev/pckbc/wskbdmap_mfii.h>
#ifdef WSDISPLAY_COMPAT_RAWKBD
#include <hpcmips/dev/pckbd_encode.h>
#endif

#include <hpcmips/dev/hpckbdvar.h>
#include <hpcmips/dev/hpckbdkeymap.h>

#ifdef TX39XX
#include <hpcmips/tx/tx39var.h>
#include <hpcmips/tx/txsnd.h>
#endif

struct hpckbd_softc;

#define NEVENTQ 32
struct hpckbd_eventq {
	u_int	hq_type;
	int	hq_data;
};

struct hpckbd_core {
	struct hpckbd_if	hc_if;
	struct hpckbd_ic_if	*hc_ic;
	const u_int8_t		*hc_keymap;
	const int		*hc_special;
	int			hc_polling;
	int			hc_console;
#define NEVENTQ 32
	struct hpckbd_eventq	hc_eventq[NEVENTQ];
	struct hpckbd_eventq	*hc_head, *hc_tail;
	int			hc_nevents;
	int			hc_enabled;
	struct device		*hc_wskbddev;
	struct hpckbd_softc*	hc_sc;	/* back link */
#ifdef WSDISPLAY_COMPAT_RAWKBD
	int			hc_rawkbd;
#endif
};

struct hpckbd_softc {
	struct device		sc_dev;
	struct hpckbd_core	*sc_core;
	struct hpckbd_core	sc_coredata;
};

int	hpckbd_match __P((struct device*, struct cfdata*, void*));
void	hpckbd_attach __P((struct device*, struct device*, void*));

void	hpckbd_initcore __P((struct hpckbd_core*, struct hpckbd_ic_if*,
			     int));
void	hpckbd_initif __P((struct hpckbd_core*));
int	hpckbd_getevent __P((struct hpckbd_core*, u_int*, int*));
int	hpckbd_putevent __P((struct hpckbd_core*, u_int, int));
void	hpckbd_keymap_lookup __P((struct hpckbd_core*));
void	hpckbd_keymap_setup __P((struct hpckbd_core *, const keysym_t *, int));
int	__hpckbd_input __P((void*, int, int));
void	__hpckbd_input_hook __P((void*));

struct cfattach hpckbd_ca = {
	sizeof(struct hpckbd_softc), hpckbd_match, hpckbd_attach
};

/* wskbd accessopts */
int	hpckbd_enable __P((void *, int));
void	hpckbd_set_leds __P((void *, int));
int	hpckbd_ioctl __P((void *, u_long, caddr_t, int, struct proc *));

/* consopts */
struct	hpckbd_core hpckbd_consdata;
void	hpckbd_cngetc __P((void*, u_int*, int*));
void	hpckbd_cnpollc __P((void *, int));

const struct wskbd_accessops hpckbd_accessops = {
	hpckbd_enable,
	hpckbd_set_leds,
	hpckbd_ioctl,
};

const struct wskbd_consops hpckbd_consops = {
	hpckbd_cngetc,
	hpckbd_cnpollc,
};

struct wskbd_mapdata hpckbd_keymapdata = {
	pckbd_keydesctab,
#ifdef PCKBD_LAYOUT
	PCKBD_LAYOUT
#else
	KB_US
#endif
};

int
hpckbd_match(parent, cf, aux)
	struct device *parent;
	struct cfdata *cf;
	void *aux;
{
	return (1);
}

void
hpckbd_attach(parent, self, aux)
	struct device *parent;
	struct device *self;
	void *aux;
{
	struct hpckbd_attach_args *haa = aux;
	struct hpckbd_softc *sc = (void*)self;
	struct hpckbd_ic_if *ic = haa->haa_ic;
	struct wskbddev_attach_args wa;

	/*
	 * Initialize core if it isn't console
	 */
	if (hpckbd_consdata.hc_ic == ic) {
		sc->sc_core = &hpckbd_consdata;
		/* The core has been initialized in hpckbd_cnattach. */
	} else {
		sc->sc_core = &sc->sc_coredata;
		hpckbd_initcore(sc->sc_core, ic, 0 /* not console */);
	}

	if (sc->sc_core->hc_keymap == default_keymap)
		printf(": no keymap.");
	
	printf("\n");

	/*
	 * setup hpckbd public interface for parent controller.
	 */
	hpckbd_initif(sc->sc_core);

	/*
	 * attach wskbd
	 */
	wa.console = sc->sc_core->hc_console;
	wa.keymap = &hpckbd_keymapdata;
	wa.accessops = &hpckbd_accessops;
	wa.accesscookie = sc->sc_core;
	sc->sc_core->hc_wskbddev = config_found(self, &wa, wskbddevprint);
}

int
hpckbd_print(aux, pnp)
	void *aux;
	const char *pnp;
{
	return (pnp ? QUIET : UNCONF);
}

void
hpckbd_initcore(hc, ic, console)
	struct hpckbd_core *hc;
	struct hpckbd_ic_if *ic;
	int console;
{
	hc->hc_polling = 0;
	hc->hc_console = console;
	hc->hc_ic = ic;

	/* setup event queue */
	hc->hc_head = hc->hc_tail = hc->hc_eventq;
	hc->hc_nevents = 0;

	hpckbd_keymap_lookup(hc);
}

void
hpckbd_initif(hc)
	struct hpckbd_core *hc;
{
	struct hpckbd_if *kbdif = &hc->hc_if;

	kbdif->hi_ctx = hc;
	kbdif->hi_input = __hpckbd_input;
	kbdif->hi_input_hook = __hpckbd_input_hook;
	hpckbd_ic_establish(hc->hc_ic, &hc->hc_if);
}

int
hpckbd_putevent(hc, type, data)
	struct hpckbd_core* hc;
	u_int type;
	int data;
{
	if (hc->hc_nevents == NEVENTQ)
		return (0); /* queue is full */

	hc->hc_nevents++;
	hc->hc_tail->hq_type = type;
	hc->hc_tail->hq_data = data;
	if (&hc->hc_eventq[NEVENTQ] <= ++hc->hc_tail)
		hc->hc_tail = hc->hc_eventq;

	return (1);
}

int
hpckbd_getevent(hc, type, data)
	struct hpckbd_core* hc;
	u_int *type;
	int *data;
{
	if (hc->hc_nevents == 0)
		return (0); /* queue is empty */

	*type = hc->hc_head->hq_type;
	*data = hc->hc_head->hq_data;
	hc->hc_nevents--;
	if (&hc->hc_eventq[NEVENTQ] <= ++hc->hc_head)
		hc->hc_head = hc->hc_eventq;

	return (1);
}

void
hpckbd_keymap_setup(hc, map, mapsize)
	struct hpckbd_core *hc;
	const keysym_t *map;
	int mapsize;
{
	int i;
	struct wscons_keydesc *desc;

	/* fix keydesc table */
	desc = (struct wscons_keydesc *)hpckbd_keymapdata.keydesc;
	for (i = 0; desc[i].name != 0; i++) {
		if ((desc[i].name & KB_MACHDEP) && desc[i].map == NULL) {
			desc[i].map = map;
			desc[i].map_size = mapsize;
		}
	}

	return;
}

void
hpckbd_keymap_lookup(hc)
	struct hpckbd_core *hc;
{
	const struct hpckbd_keymap_table *tab;
	platid_mask_t mask;

	for (tab = hpckbd_keymap_table; tab->ht_platform != NULL; tab++) {

		mask = PLATID_DEREF(tab->ht_platform);

		if (platid_match(&platid, &mask)) {
			hc->hc_keymap = tab->ht_keymap;
			hc->hc_special = tab->ht_special;
#if !defined(PCKBD_LAYOUT)
			hpckbd_keymapdata.layout = tab->ht_layout;
#endif
			if (tab->ht_cmdmap.map) {
				hpckbd_keymap_setup(hc, tab->ht_cmdmap.map, 
						    tab->ht_cmdmap.size);
#if !defined(PCKBD_LAYOUT)
				hpckbd_keymapdata.layout |= KB_MACHDEP;
#endif
			} else {
				hpckbd_keymapdata.layout &= ~KB_MACHDEP;
			}
			return;
		}
	}

	/* no keymap. use default. */
	hc->hc_keymap = default_keymap;
	hc->hc_special = default_special_keymap;
#if !defined(PCKBD_LAYOUT)
	hpckbd_keymapdata.layout = KB_US;
#endif
}

void
__hpckbd_input_hook(arg)
 	void *arg;
{
#if 0
	struct hpckbd_core *hc = arg;

	if (hc->hc_polling) {
		hc->hc_type = WSCONS_EVENT_ALL_KEYS_UP;
	}
#endif
}

int
__hpckbd_input(arg, flag, scancode)
 	void *arg;
	int flag, scancode;
{
	struct hpckbd_core *hc = arg;
	int type, key;

	if (flag) {
#ifdef TX39XX
		tx_sound_click(tx_conf_get_tag());
#endif
		type = WSCONS_EVENT_KEY_DOWN; 
	} else {
		type = WSCONS_EVENT_KEY_UP;
	}
	
	if ((key = hc->hc_keymap[scancode]) == UNK) {
		printf("hpckbd: unknown scan code %#x\n", scancode);

		return (0);
	}

	if (key == IGN) {
		return (0);
	}

	if (key == SPL) {
		if (!flag)
			return (0);
		
		if (scancode == hc->hc_special[KEY_SPECIAL_OFF])
			printf("off button\n");
		else if (scancode == hc->hc_special[KEY_SPECIAL_LIGHT]) {
			static int onoff; /* XXX -uch */
			config_hook_call(CONFIG_HOOK_BUTTONEVENT,
					 CONFIG_HOOK_BUTTONEVENT_LIGHT, 
					 (void *)(onoff ^= 1));
		} else 
			printf("unknown special key %d\n", scancode);
		
		return (0);
	}

	if (hc->hc_polling) {
		if (hpckbd_putevent(hc, type, hc->hc_keymap[scancode]) == 0)
			printf("hpckbd: queue over flow");
	} else {
#ifdef WSDISPLAY_COMPAT_RAWKBD
		if (hc->hc_rawkbd) {
			int n;
			u_char data[16];
			n = pckbd_encode(type, hc->hc_keymap[scancode], data);
			wskbd_rawinput(hc->hc_wskbddev, data, n);
		} else
#endif
		wskbd_input(hc->hc_wskbddev, type,
			    hc->hc_keymap[scancode]);
	}

	return (0);
}

/*
 * console support routines
 */
int
hpckbd_cnattach(ic)
	struct hpckbd_ic_if *ic;
{
	struct hpckbd_core *hc = &hpckbd_consdata;

	hpckbd_initcore(hc, ic, 1 /* console */);

	/* attach controller */
	hpckbd_initif(hc);

	/* attach wskbd */
	wskbd_cnattach(&hpckbd_consops, hc, &hpckbd_keymapdata);
	
	return (0);
}

void
hpckbd_cngetc(arg, type, data)
	void *arg;
	u_int *type;
	int *data;
{
	struct hpckbd_core *hc = arg;
	int s;

	if (!hc->hc_console || !hc->hc_polling || !hc->hc_ic)
		return;

	s = splimp();
	while (hpckbd_getevent(hc, type, data) == 0) /* busy loop */
		hpckbd_ic_poll(hc->hc_ic);
	splx(s);
}

void
hpckbd_cnpollc(arg, on)
	void *arg;
        int on;
{
	struct hpckbd_core *hc = arg;
	int s = splimp();

	hc->hc_polling = on;

	splx(s);
}

int
hpckbd_enable(arg, on)
	void *arg;
	int on;
{
	struct hpckbd_core *hc = arg;

	if (on) {
		if (hc->hc_enabled)
			return (EBUSY);
		hc->hc_enabled = 1;
	} else {
		if (hc->hc_console)
			return (EBUSY);
		hc->hc_enabled = 0;
	}

	return (0);
}

void
hpckbd_set_leds(arg, leds)
	void *arg;
	int leds;
{
	/* Can you find any LED which tells you about keyboard? */
}

int
hpckbd_ioctl(arg, cmd, data, flag, p)
	void *arg;
	u_long cmd;
	caddr_t data;
	int flag;
	struct proc *p;
{
#ifdef WSDISPLAY_COMPAT_RAWKBD
	struct hpckbd_core *hc = arg;
#endif
	switch (cmd) {
	case WSKBDIO_GTYPE:
		*(int *)data = WSKBD_TYPE_HPC_KBD;
		return (0);
#ifdef WSDISPLAY_COMPAT_RAWKBD
	case WSKBDIO_SETMODE:
		hc->hc_rawkbd = (*(int *)data == WSKBD_RAW);
		return (0);
#endif
	}
	return (-1);
}