Subversion Repositories HelenOS

/*

 * Copyright (c) 2006 Josef Cejka

 * All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 *

 * - Redistributions of source code must retain the above copyright

 *   notice, this list of conditions and the following disclaimer.

 * - 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.

 * - 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.

 */

/**

 * @addtogroup kbdgen generic

 * @brief	HelenOS generic uspace keyboard handler.

 * @ingroup  kbd

 * @{

 */ 

/** @file

 */

#include <ipc/ipc.h>

#include <ipc/services.h>

#include <sysinfo.h>

#include <stdio.h>

#include <unistd.h>

#include <stdlib.h>

#include <stdio.h>

#include <ipc/ns.h>

#include <async.h>

#include <errno.h>

#include <libadt/fifo.h>

#include <kbd/kbd.h>

#include <kbd/keycode.h>

#include <kbd.h>

#include <key_buffer.h>

#include <kbd_port.h>

#include <kbd_ctl.h>

#include <layout.h>

#define NAME "kbd"

int cons_connected = 0;

int phone2cons = -1;

keybuffer_t keybuffer;

/** Currently active modifiers. */

static unsigned mods = KM_NUM_LOCK;

/** Currently pressed lock keys. We track these to tackle autorepeat. */

static unsigned lock_keys;

int cir_service = 0;

int cir_phone = -1;

#define NUM_LAYOUTS 3

static layout_op_t *layout[NUM_LAYOUTS] = {

	&us_qwerty_op,

	&us_dvorak_op,

	&cz_op

};

static int active_layout = 0;

void kbd_push_scancode(int scancode)

{

/*	printf("scancode: 0x%x\n", scancode);*/

	kbd_ctl_parse_scancode(scancode);

}

void kbd_push_ev(int type, unsigned int key)

{

	kbd_event_t ev;

	unsigned mod_mask;

	switch (key) {

	case KC_LCTRL: mod_mask = KM_LCTRL; break;

	case KC_RCTRL: mod_mask = KM_RCTRL; break;

	case KC_LSHIFT: mod_mask = KM_LSHIFT; break;

	case KC_RSHIFT: mod_mask = KM_RSHIFT; break;

	case KC_LALT: mod_mask = KM_LALT; break;

	case KC_RALT: mod_mask = KM_RALT; break;

	default: mod_mask = 0; break;

	}

	if (mod_mask != 0) {

		if (type == KE_PRESS)

			mods = mods | mod_mask;

		else

			mods = mods & ~mod_mask;

	}

	switch (key) {

	case KC_CAPS_LOCK: mod_mask = KM_CAPS_LOCK; break;

	case KC_NUM_LOCK: mod_mask = KM_NUM_LOCK; break;

	case KC_SCROLL_LOCK: mod_mask = KM_SCROLL_LOCK; break;

	default: mod_mask = 0; break;

	}

	if (mod_mask != 0) {

		if (type == KE_PRESS) {

			/*

			 * Only change lock state on transition from released

			 * to pressed. This prevents autorepeat from messing

			 * up the lock state.

			 */

			mods = mods ^ (mod_mask & ~lock_keys);

			lock_keys = lock_keys | mod_mask;

		} else {

			lock_keys = lock_keys & ~mod_mask;

		}

	}

/*

	printf("type: %d\n", type);

	printf("mods: 0x%x\n", mods);

	printf("keycode: %u\n", key);

*/

	if (type == KE_PRESS && (mods & KM_LCTRL) &&

		key == KC_F1) {

		active_layout = 0;

		layout[active_layout]->reset();

		return;

	}

	if (type == KE_PRESS && (mods & KM_LCTRL) &&

		key == KC_F2) {

		active_layout = 1;

		layout[active_layout]->reset();

		return;

	}

	if (type == KE_PRESS && (mods & KM_LCTRL) &&

		key == KC_F3) {

		active_layout = 2;

		layout[active_layout]->reset();

		return;

	}

	ev.type = type;

	ev.key = key;

	ev.mods = mods;

	ev.c = layout[active_layout]->parse_ev(&ev);

	async_msg_4(phone2cons, KBD_EVENT, ev.type, ev.key, ev.mods, ev.c);

}

static void console_connection(ipc_callid_t iid, ipc_call_t *icall)

{

	ipc_callid_t callid;

	ipc_call_t call;

	int retval;

	if (cons_connected) {

		ipc_answer_0(iid, ELIMIT);

		return;

	}

	cons_connected = 1;

	ipc_answer_0(iid, EOK);

	while (1) {

		callid = async_get_call(&call);

		switch (IPC_GET_METHOD(call)) {

		case IPC_M_PHONE_HUNGUP:

			cons_connected = 0;

			ipc_hangup(phone2cons);

			phone2cons = -1;

			ipc_answer_0(callid, EOK);

			return;

		case IPC_M_CONNECT_TO_ME:

			if (phone2cons != -1) {

				retval = ELIMIT;

				break;

			}

			phone2cons = IPC_GET_ARG5(call);

			retval = 0;

			break;

		case KBD_YIELD:

			kbd_port_yield();

			retval = 0;

			break;

		case KBD_RECLAIM:

			kbd_port_reclaim();

			retval = 0;

			break;

		default:

			retval = EINVAL;

		}

		ipc_answer_0(callid, retval);

	}	

}

int main(int argc, char **argv)

{

	printf(NAME ": HelenOS Keyboard service\n");

	ipcarg_t phonead;

	if (sysinfo_value("kbd.cir.fhc") == 1)

		cir_service = SERVICE_FHC;

	else if (sysinfo_value("kbd.cir.obio") == 1)

		cir_service = SERVICE_OBIO;

	if (cir_service) {

		while (cir_phone < 0) {

			cir_phone = ipc_connect_me_to_blocking(PHONE_NS, cir_service,

			    0, 0);

		}

	}

	/* Initialize port driver. */

	if (kbd_port_init() != 0)

		return -1;

	/* Initialize controller driver. */

	if (kbd_ctl_init() != 0)

		return -1;

	/* Initialize (reset) layout. */

	layout[active_layout]->reset();

	/* Initialize key buffer */

	keybuffer_init(&keybuffer);

	async_set_client_connection(console_connection);

	/* Register service at nameserver. */

	if (ipc_connect_to_me(PHONE_NS, SERVICE_KEYBOARD, 0, 0, &phonead) != 0)

		return -1;

	printf(NAME ": Accepting connections\n");

	async_manager();

	/* Not reached. */

	return 0;

}

/**

 * @}

 */