NetBSD-5.0.2/sys/dev/hpc/hpckbd.c
/* $NetBSD: hpckbd.c,v 1.25 2008/04/28 20:23:48 martin Exp $ */
/*-
* Copyright (c) 1999-2001 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by UCHIYAMA Yasushi.
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: hpckbd.c,v 1.25 2008/04/28 20:23:48 martin Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <sys/tty.h>
#include <sys/bus.h>
#include <sys/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/wsksymvar.h>
#include <dev/pckbport/wskbdmap_mfii.h>
#ifdef WSDISPLAY_COMPAT_RAWKBD
#include <dev/hpc/pckbd_encode.h>
#endif
#include <dev/hpc/hpckbdvar.h>
#include <dev/hpc/hpckbdkeymap.h>
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 uint8_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(struct device *, struct cfdata *, void *);
void hpckbd_attach(struct device *, struct device *, void *);
void hpckbd_initcore(struct hpckbd_core *, struct hpckbd_ic_if *, int);
void hpckbd_initif(struct hpckbd_core *);
int hpckbd_getevent(struct hpckbd_core *, u_int *, int *);
int hpckbd_putevent(struct hpckbd_core *, u_int, int);
void hpckbd_keymap_lookup(struct hpckbd_core*);
void hpckbd_keymap_setup(struct hpckbd_core *, const keysym_t *, int);
int __hpckbd_input(void *, int, int);
void __hpckbd_input_hook(void *);
CFATTACH_DECL(hpckbd, sizeof(struct hpckbd_softc),
hpckbd_match, hpckbd_attach, NULL, NULL);
/* wskbd accessopts */
int hpckbd_enable(void *, int);
void hpckbd_set_leds(void *, int);
int hpckbd_ioctl(void *, u_long, void *, int, struct lwp *);
/* consopts */
struct hpckbd_core hpckbd_consdata;
void hpckbd_cngetc(void *, u_int *, int*);
void hpckbd_cnpollc(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,
NULL,
};
struct wskbd_mapdata hpckbd_keymapdata = {
pckbd_keydesctab,
#ifdef PCKBD_LAYOUT
PCKBD_LAYOUT
#else
KB_US
#endif
};
int
hpckbd_match(struct device *parent,
struct cfdata *cf, void *aux)
{
return (1);
}
void
hpckbd_attach(struct device *parent, struct device *self, void *aux)
{
struct hpckbd_attach_args *haa = aux;
struct hpckbd_softc *sc = device_private(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(void *aux, const char *pnp)
{
return (pnp ? QUIET : UNCONF);
}
void
hpckbd_initcore(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(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(struct hpckbd_core* hc, u_int type, int data)
{
int s = spltty();
if (hc->hc_nevents == NEVENTQ) {
splx(s);
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;
splx(s);
return (1);
}
int
hpckbd_getevent(struct hpckbd_core* hc, u_int *type, int *data)
{
int s = spltty();
if (hc->hc_nevents == 0) {
splx(s);
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;
splx(s);
return (1);
}
void
hpckbd_keymap_setup(struct hpckbd_core *hc,
const keysym_t *map, int mapsize)
{
int i;
struct wscons_keydesc *desc;
/* fix keydesc table */
/*
* XXX The way this is done is really wrong. The __UNCONST()
* is a hint as to what is wrong. This actually ends up modifying
* initialized data which is marked "const".
* The reason we get away with it here is apparently that text
* and read-only data gets mapped read/write on the platforms
* using this code.
*/
desc = (struct wscons_keydesc *)__UNCONST(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(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(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(void *arg, int flag, int scancode)
{
struct hpckbd_core *hc = arg;
int type, key;
if (flag) {
type = WSCONS_EVENT_KEY_DOWN;
} else {
type = WSCONS_EVENT_KEY_UP;
}
key = hc->hc_keymap[scancode];
if (key == UNK) {
#ifdef DEBUG
printf("hpckbd: unknown scan code %#x (%d, %d)\n",
scancode, scancode >> 3,
scancode - ((scancode >> 3) << 3));
#endif /* DEBUG */
return (0);
}
if (key == IGN) {
return (0);
}
if (key == SPL) {
if (!flag)
return (0);
if (scancode == hc->hc_special[KEY_SPECIAL_OFF]) {
config_hook_call(CONFIG_HOOK_BUTTONEVENT,
CONFIG_HOOK_BUTTONEVENT_POWER, (void *)1 /* on */);
} 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 {
#ifdef DEBUG
printf("unknown special key %d\n", scancode);
#endif
}
return (0);
}
if (hc->hc_polling) {
if (hpckbd_putevent(hc, type, key) == 0)
printf("hpckbd: queue over flow\n");
} else {
#ifdef WSDISPLAY_COMPAT_RAWKBD
if (hc->hc_rawkbd) {
int n;
u_char data[16];
n = pckbd_encode(type, key, data);
wskbd_rawinput(hc->hc_wskbddev, data, n);
} else
#endif
wskbd_input(hc->hc_wskbddev, type, key);
}
return (0);
}
/*
* console support routines
*/
int
hpckbd_cnattach(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(void *arg, u_int *type, int *data)
{
struct hpckbd_core *hc = arg;
if (!hc->hc_console || !hc->hc_polling || !hc->hc_ic)
return;
while (hpckbd_getevent(hc, type, data) == 0) /* busy loop */
hpckbd_ic_poll(hc->hc_ic);
}
void
hpckbd_cnpollc(void *arg, int on)
{
struct hpckbd_core *hc = arg;
hc->hc_polling = on;
}
int
hpckbd_enable(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(void *arg, int leds)
{
/* Can you find any LED which tells you about keyboard? */
}
int
hpckbd_ioctl(void *arg, u_long cmd, void *data, int flag,
struct lwp *l)
{
#ifdef WSDISPLAY_COMPAT_RAWKBD
struct hpckbd_core *hc = arg;
#endif
switch (cmd) {
case WSKBDIO_GTYPE:
*(int *)data = WSKBD_TYPE_HPC_KBD;
return (0);
case WSKBDIO_SETLEDS:
return 0;
case WSKBDIO_GETLEDS:
*(int *)data = 0; /* dummy for wsconsctl(8) */
return (0);
#ifdef WSDISPLAY_COMPAT_RAWKBD
case WSKBDIO_SETMODE:
hc->hc_rawkbd = (*(int *)data == WSKBD_RAW);
return (0);
#endif
}
return (EPASSTHROUGH);
}