/********************************************************************* *                 * Filename:      esi.c * Version:       1.6 * Description:   Driver for the Extended Systems JetEye PC dongle * Status:        Experimental. * Author:        Dag Brattli <dagb@cs.uit.no> * Created at:    Sat Feb 21 18:54:38 1998 * Modified at:   Sun Oct 27 22:01:04 2002 * Modified by:   Martin Diehl <mad@mdiehl.de> *  *     Copyright (c) 1999 Dag Brattli, <dagb@cs.uit.no>, *     Copyright (c) 1998 Thomas Davis, <ratbert@radiks.net>, *     Copyright (c) 2002 Martin Diehl, <mad@mdiehl.de>, *     All Rights Reserved. *      *     This program is free software; you can redistribute it and/or  *     modify it under the terms of the GNU General Public License as  *     published by the Free Software Foundation; either version 2 of  *     the License, or (at your option) any later version. *  *     This program is distributed in the hope that it will be useful, *     but WITHOUT ANY WARRANTY; without even the implied warranty of *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *     GNU General Public License for more details. *  *     You should have received a copy of the GNU General Public License  *     along with this program; if not, write to the Free Software  *     Foundation, Inc., 59 Temple Place, Suite 330, Boston,  *     MA 02111-1307 USA *      ********************************************************************/#include <linux/module.h>#include <linux/delay.h>#include <linux/init.h>#include <net/irda/irda.h>#include "sir-dev.h"static int esi_open(struct sir_dev *);static int esi_close(struct sir_dev *);static int esi_change_speed(struct sir_dev *, unsigned);static int esi_reset(struct sir_dev *);static struct dongle_driver esi = {	.owner		= THIS_MODULE,	.driver_name	= "JetEye PC ESI-9680 PC",	.type		= IRDA_ESI_DONGLE,	.open		= esi_open,	.close		= esi_close,	.reset		= esi_reset,	.set_speed	= esi_change_speed,};static int __init esi_sir_init(void){	return irda_register_dongle(&esi);}static void __exit esi_sir_cleanup(void){	irda_unregister_dongle(&esi);}static int esi_open(struct sir_dev *dev){	struct qos_info *qos = &dev->qos;	/* Power up and set dongle to 9600 baud */	sirdev_set_dtr_rts(dev, FALSE, TRUE);	qos->baud_rate.bits &= IR_9600|IR_19200|IR_115200;	qos->min_turn_time.bits = 0x01; /* Needs at least 10 ms */	irda_qos_bits_to_value(qos);	/* irda thread waits 50 msec for power settling */	return 0;}static int esi_close(struct sir_dev *dev){	/* Power off dongle */	sirdev_set_dtr_rts(dev, FALSE, FALSE);	return 0;}/* * Function esi_change_speed (task) * * Set the speed for the Extended Systems JetEye PC ESI-9680 type dongle * Apparently (see old esi-driver) no delays are needed here... * */static int esi_change_speed(struct sir_dev *dev, unsigned speed){	int ret = 0;	int dtr, rts;		switch (speed) {	case 19200:		dtr = TRUE;		rts = FALSE;		break;	case 115200:		dtr = rts = TRUE;		break;	default:		ret = -EINVAL;		speed = 9600;		/* fall through */	case 9600:		dtr = FALSE;		rts = TRUE;		break;	}	/* Change speed of dongle */	sirdev_set_dtr_rts(dev, dtr, rts);	dev->speed = speed;	return ret;}/* * Function esi_reset (task) * *    Reset dongle; * */static int esi_reset(struct sir_dev *dev){	sirdev_set_dtr_rts(dev, FALSE, FALSE);	/* Hm, the old esi-driver left the dongle unpowered relying on	 * the following speed change to repower. This might work for	 * the esi because we only need the modem lines. However, now the	 * general rule is reset must bring the dongle to some working	 * well-known state because speed change might write to registers.	 * The old esi-driver didn't any delay here - let's hope it' fine.	 */	sirdev_set_dtr_rts(dev, FALSE, TRUE);	dev->speed = 9600;	return 0;}MODULE_AUTHOR("Dag Brattli <dagb@cs.uit.no>");MODULE_DESCRIPTION("Extended Systems JetEye PC dongle driver");MODULE_LICENSE("GPL");MODULE_ALIAS("irda-dongle-1"); /* IRDA_ESI_DONGLE */module_init(esi_sir_init);module_exit(esi_sir_cleanup);