1/*********************************************************************
2 *
3 * Filename:      esi.c
4 * Version:       1.5
5 * Description:   Driver for the Extended Systems JetEye PC dongle
6 * Status:        Experimental.
7 * Author:        Dag Brattli <dagb@cs.uit.no>
8 * Created at:    Sat Feb 21 18:54:38 1998
9 * Modified at:   Fri Dec 17 09:14:04 1999
10 * Modified by:   Dag Brattli <dagb@cs.uit.no>
11 *
12 *     Copyright (c) 1999 Dag Brattli, <dagb@cs.uit.no>,
13 *     Copyright (c) 1998 Thomas Davis, <ratbert@radiks.net>,
14 *     All Rights Reserved.
15 *
16 *     This program is free software; you can redistribute it and/or
17 *     modify it under the terms of the GNU General Public License as
18 *     published by the Free Software Foundation; either version 2 of
19 *     the License, or (at your option) any later version.
20 *
21 *     This program is distributed in the hope that it will be useful,
22 *     but WITHOUT ANY WARRANTY; without even the implied warranty of
23 *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
24 *     GNU General Public License for more details.
25 *
26 *     You should have received a copy of the GNU General Public License
27 *     along with this program; if not, write to the Free Software
28 *     Foundation, Inc., 59 Temple Place, Suite 330, Boston,
29 *     MA 02111-1307 USA
30 *
31 ********************************************************************/
32
33#include <linux/module.h>
34#include <linux/delay.h>
35#include <linux/tty.h>
36#include <linux/init.h>
37
38#include <net/irda/irda.h>
39#include <net/irda/irda_device.h>
40
41static void esi_open(dongle_t *self, struct qos_info *qos);
42static void esi_close(dongle_t *self);
43static int  esi_change_speed(struct irda_task *task);
44static int  esi_reset(struct irda_task *task);
45
46static struct dongle_reg dongle = {
47	.type = IRDA_ESI_DONGLE,
48	.open = esi_open,
49	.close = esi_close,
50	.reset = esi_reset,
51	.change_speed = esi_change_speed,
52	.owner = THIS_MODULE,
53};
54
55static int __init esi_init(void)
56{
57	return irda_device_register_dongle(&dongle);
58}
59
60static void __exit esi_cleanup(void)
61{
62	irda_device_unregister_dongle(&dongle);
63}
64
65static void esi_open(dongle_t *self, struct qos_info *qos)
66{
67	qos->baud_rate.bits &= IR_9600|IR_19200|IR_115200;
68	qos->min_turn_time.bits = 0x01; /* Needs at least 10 ms */
69}
70
71static void esi_close(dongle_t *dongle)
72{
73	/* Power off dongle */
74	dongle->set_dtr_rts(dongle->dev, FALSE, FALSE);
75}
76
77/*
78 * Function esi_change_speed (task)
79 *
80 *    Set the speed for the Extended Systems JetEye PC ESI-9680 type dongle
81 *
82 */
83static int esi_change_speed(struct irda_task *task)
84{
85	dongle_t *self = (dongle_t *) task->instance;
86	__u32 speed = (__u32) task->param;
87	int dtr, rts;
88
89	switch (speed) {
90	case 19200:
91		dtr = TRUE;
92		rts = FALSE;
93		break;
94	case 115200:
95		dtr = rts = TRUE;
96		break;
97	case 9600:
98	default:
99		dtr = FALSE;
100		rts = TRUE;
101		break;
102	}
103
104	/* Change speed of dongle */
105	self->set_dtr_rts(self->dev, dtr, rts);
106	self->speed = speed;
107
108	irda_task_next_state(task, IRDA_TASK_DONE);
109
110	return 0;
111}
112
113/*
114 * Function esi_reset (task)
115 *
116 *    Reset dongle;
117 *
118 */
119static int esi_reset(struct irda_task *task)
120{
121	dongle_t *self = (dongle_t *) task->instance;
122
123	self->set_dtr_rts(self->dev, FALSE, FALSE);
124	irda_task_next_state(task, IRDA_TASK_DONE);
125
126	return 0;
127}
128
129MODULE_AUTHOR("Dag Brattli <dagb@cs.uit.no>");
130MODULE_DESCRIPTION("Extended Systems JetEye PC dongle driver");
131MODULE_LICENSE("GPL");
132MODULE_ALIAS("irda-dongle-1"); /* IRDA_ESI_DONGLE */
133
134/*
135 * Function init_module (void)
136 *
137 *    Initialize ESI module
138 *
139 */
140module_init(esi_init);
141
142/*
143 * Function cleanup_module (void)
144 *
145 *    Cleanup ESI module
146 *
147 */
148module_exit(esi_cleanup);
149