mirror of https://gitee.com/openkylin/linux.git
150 lines
3.6 KiB
C
150 lines
3.6 KiB
C
/*********************************************************************
|
|
*
|
|
* Filename: esi.c
|
|
* Version: 1.5
|
|
* 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: Fri Dec 17 09:14:04 1999
|
|
* Modified by: Dag Brattli <dagb@cs.uit.no>
|
|
*
|
|
* Copyright (c) 1999 Dag Brattli, <dagb@cs.uit.no>,
|
|
* Copyright (c) 1998 Thomas Davis, <ratbert@radiks.net>,
|
|
* 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/tty.h>
|
|
#include <linux/init.h>
|
|
|
|
#include <net/irda/irda.h>
|
|
#include <net/irda/irda_device.h>
|
|
|
|
static void esi_open(dongle_t *self, struct qos_info *qos);
|
|
static void esi_close(dongle_t *self);
|
|
static int esi_change_speed(struct irda_task *task);
|
|
static int esi_reset(struct irda_task *task);
|
|
|
|
static struct dongle_reg dongle = {
|
|
.type = IRDA_ESI_DONGLE,
|
|
.open = esi_open,
|
|
.close = esi_close,
|
|
.reset = esi_reset,
|
|
.change_speed = esi_change_speed,
|
|
.owner = THIS_MODULE,
|
|
};
|
|
|
|
static int __init esi_init(void)
|
|
{
|
|
return irda_device_register_dongle(&dongle);
|
|
}
|
|
|
|
static void __exit esi_cleanup(void)
|
|
{
|
|
irda_device_unregister_dongle(&dongle);
|
|
}
|
|
|
|
static void esi_open(dongle_t *self, struct qos_info *qos)
|
|
{
|
|
qos->baud_rate.bits &= IR_9600|IR_19200|IR_115200;
|
|
qos->min_turn_time.bits = 0x01; /* Needs at least 10 ms */
|
|
}
|
|
|
|
static void esi_close(dongle_t *dongle)
|
|
{
|
|
/* Power off dongle */
|
|
dongle->set_dtr_rts(dongle->dev, FALSE, FALSE);
|
|
}
|
|
|
|
/*
|
|
* Function esi_change_speed (task)
|
|
*
|
|
* Set the speed for the Extended Systems JetEye PC ESI-9680 type dongle
|
|
*
|
|
*/
|
|
static int esi_change_speed(struct irda_task *task)
|
|
{
|
|
dongle_t *self = (dongle_t *) task->instance;
|
|
__u32 speed = (__u32) task->param;
|
|
int dtr, rts;
|
|
|
|
switch (speed) {
|
|
case 19200:
|
|
dtr = TRUE;
|
|
rts = FALSE;
|
|
break;
|
|
case 115200:
|
|
dtr = rts = TRUE;
|
|
break;
|
|
case 9600:
|
|
default:
|
|
dtr = FALSE;
|
|
rts = TRUE;
|
|
break;
|
|
}
|
|
|
|
/* Change speed of dongle */
|
|
self->set_dtr_rts(self->dev, dtr, rts);
|
|
self->speed = speed;
|
|
|
|
irda_task_next_state(task, IRDA_TASK_DONE);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Function esi_reset (task)
|
|
*
|
|
* Reset dongle;
|
|
*
|
|
*/
|
|
static int esi_reset(struct irda_task *task)
|
|
{
|
|
dongle_t *self = (dongle_t *) task->instance;
|
|
|
|
self->set_dtr_rts(self->dev, FALSE, FALSE);
|
|
irda_task_next_state(task, IRDA_TASK_DONE);
|
|
|
|
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 */
|
|
|
|
/*
|
|
* Function init_module (void)
|
|
*
|
|
* Initialize ESI module
|
|
*
|
|
*/
|
|
module_init(esi_init);
|
|
|
|
/*
|
|
* Function cleanup_module (void)
|
|
*
|
|
* Cleanup ESI module
|
|
*
|
|
*/
|
|
module_exit(esi_cleanup);
|
|
|