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1/*********************************************************************
2 *
3 * Filename: old_belkin.c
4 * Version: 1.1
5 * Description: Driver for the Belkin (old) SmartBeam dongle
6 * Status: Experimental...
7 * Author: Jean Tourrilhes <jt@hpl.hp.com>
8 * Created at: 22/11/99
9 * Modified at: Fri Dec 17 09:13:32 1999
10 * Modified by: Dag Brattli <dagb@cs.uit.no>
11 *
12 * Copyright (c) 1999 Jean Tourrilhes, All Rights Reserved.
13 *
14 * This program is free software; you can redistribute it and/or
15 * modify it under the terms of the GNU General Public License as
16 * published by the Free Software Foundation; either version 2 of
17 * the License, or (at your option) any later version.
18 *
19 * This program is distributed in the hope that it will be useful,
20 * but WITHOUT ANY WARRANTY; without even the implied warranty of
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 * GNU General Public License for more details.
23 *
24 * You should have received a copy of the GNU General Public License
25 * along with this program; if not, write to the Free Software
26 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
27 * MA 02111-1307 USA
28 *
29 ********************************************************************/
30
31#include <linux/module.h>
32#include <linux/delay.h>
33#include <linux/init.h>
34
35#include <net/irda/irda.h>
36// #include <net/irda/irda_device.h>
37
38#include "sir-dev.h"
39
40/*
41 * Belkin is selling a dongle called the SmartBeam.
42 * In fact, there is two hardware version of this dongle, of course with
43 * the same name and looking the exactly same (grrr...).
44 * I guess that I've got the old one, because inside I don't have
45 * a jumper for IrDA/ASK...
46 *
47 * As far as I can make it from info on their web site, the old dongle
48 * support only 9600 b/s, which make our life much simpler as far as
49 * the driver is concerned, but you might not like it very much ;-)
50 * The new SmartBeam does 115 kb/s, and I've not tested it...
51 *
52 * Belkin claim that the correct driver for the old dongle (in Windows)
53 * is the generic Parallax 9500a driver, but the Linux LiteLink driver
54 * fails for me (probably because Linux-IrDA doesn't rate fallback),
55 * so I created this really dumb driver...
56 *
57 * In fact, this driver doesn't do much. The only thing it does is to
58 * prevent Linux-IrDA to use any other speed than 9600 b/s ;-) This
59 * driver is called "old_belkin" so that when the new SmartBeam is supported
60 * its driver can be called "belkin" instead of "new_belkin".
61 *
62 * Note : this driver was written without any info/help from Belkin,
63 * so a lot of info here might be totally wrong. Blame me ;-)
64 */
65
66static int old_belkin_open(struct sir_dev *dev);
67static int old_belkin_close(struct sir_dev *dev);
68static int old_belkin_change_speed(struct sir_dev *dev, unsigned speed);
69static int old_belkin_reset(struct sir_dev *dev);
70
71static struct dongle_driver old_belkin = {
72 .owner = THIS_MODULE,
73 .driver_name = "Old Belkin SmartBeam",
74 .type = IRDA_OLD_BELKIN_DONGLE,
75 .open = old_belkin_open,
76 .close = old_belkin_close,
77 .reset = old_belkin_reset,
78 .set_speed = old_belkin_change_speed,
79};
80
81static int __init old_belkin_sir_init(void)
82{
83 return irda_register_dongle(&old_belkin);
84}
85
86static void __exit old_belkin_sir_cleanup(void)
87{
88 irda_unregister_dongle(&old_belkin);
89}
90
91static int old_belkin_open(struct sir_dev *dev)
92{
93 struct qos_info *qos = &dev->qos;
94
95 IRDA_DEBUG(2, "%s()\n", __func__);
96
97 /* Power on dongle */
98 sirdev_set_dtr_rts(dev, TRUE, TRUE);
99
100 /* Not too fast, please... */
101 qos->baud_rate.bits &= IR_9600;
102 /* Needs at least 10 ms (totally wild guess, can do probably better) */
103 qos->min_turn_time.bits = 0x01;
104 irda_qos_bits_to_value(qos);
105
106 /* irda thread waits 50 msec for power settling */
107
108 return 0;
109}
110
111static int old_belkin_close(struct sir_dev *dev)
112{
113 IRDA_DEBUG(2, "%s()\n", __func__);
114
115 /* Power off dongle */
116 sirdev_set_dtr_rts(dev, FALSE, FALSE);
117
118 return 0;
119}
120
121/*
122 * Function old_belkin_change_speed (task)
123 *
124 * With only one speed available, not much to do...
125 */
126static int old_belkin_change_speed(struct sir_dev *dev, unsigned speed)
127{
128 IRDA_DEBUG(2, "%s()\n", __func__);
129
130 dev->speed = 9600;
131 return (speed==dev->speed) ? 0 : -EINVAL;
132}
133
134/*
135 * Function old_belkin_reset (task)
136 *
137 * Reset the Old-Belkin type dongle.
138 *
139 */
140static int old_belkin_reset(struct sir_dev *dev)
141{
142 IRDA_DEBUG(2, "%s()\n", __func__);
143
144 /* This dongles speed "defaults" to 9600 bps ;-) */
145 dev->speed = 9600;
146
147 return 0;
148}
149
150MODULE_AUTHOR("Jean Tourrilhes <jt@hpl.hp.com>");
151MODULE_DESCRIPTION("Belkin (old) SmartBeam dongle driver");
152MODULE_LICENSE("GPL");
153MODULE_ALIAS("irda-dongle-7"); /* IRDA_OLD_BELKIN_DONGLE */
154
155module_init(old_belkin_sir_init);
156module_exit(old_belkin_sir_cleanup);
1/*********************************************************************
2 *
3 * Filename: old_belkin.c
4 * Version: 1.1
5 * Description: Driver for the Belkin (old) SmartBeam dongle
6 * Status: Experimental...
7 * Author: Jean Tourrilhes <jt@hpl.hp.com>
8 * Created at: 22/11/99
9 * Modified at: Fri Dec 17 09:13:32 1999
10 * Modified by: Dag Brattli <dagb@cs.uit.no>
11 *
12 * Copyright (c) 1999 Jean Tourrilhes, All Rights Reserved.
13 *
14 * This program is free software; you can redistribute it and/or
15 * modify it under the terms of the GNU General Public License as
16 * published by the Free Software Foundation; either version 2 of
17 * the License, or (at your option) any later version.
18 *
19 * This program is distributed in the hope that it will be useful,
20 * but WITHOUT ANY WARRANTY; without even the implied warranty of
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 * GNU General Public License for more details.
23 *
24 * You should have received a copy of the GNU General Public License
25 * along with this program; if not, see <http://www.gnu.org/licenses/>.
26 *
27 ********************************************************************/
28
29#include <linux/module.h>
30#include <linux/delay.h>
31#include <linux/init.h>
32
33#include <net/irda/irda.h>
34// #include <net/irda/irda_device.h>
35
36#include "sir-dev.h"
37
38/*
39 * Belkin is selling a dongle called the SmartBeam.
40 * In fact, there is two hardware version of this dongle, of course with
41 * the same name and looking the exactly same (grrr...).
42 * I guess that I've got the old one, because inside I don't have
43 * a jumper for IrDA/ASK...
44 *
45 * As far as I can make it from info on their web site, the old dongle
46 * support only 9600 b/s, which make our life much simpler as far as
47 * the driver is concerned, but you might not like it very much ;-)
48 * The new SmartBeam does 115 kb/s, and I've not tested it...
49 *
50 * Belkin claim that the correct driver for the old dongle (in Windows)
51 * is the generic Parallax 9500a driver, but the Linux LiteLink driver
52 * fails for me (probably because Linux-IrDA doesn't rate fallback),
53 * so I created this really dumb driver...
54 *
55 * In fact, this driver doesn't do much. The only thing it does is to
56 * prevent Linux-IrDA to use any other speed than 9600 b/s ;-) This
57 * driver is called "old_belkin" so that when the new SmartBeam is supported
58 * its driver can be called "belkin" instead of "new_belkin".
59 *
60 * Note : this driver was written without any info/help from Belkin,
61 * so a lot of info here might be totally wrong. Blame me ;-)
62 */
63
64static int old_belkin_open(struct sir_dev *dev);
65static int old_belkin_close(struct sir_dev *dev);
66static int old_belkin_change_speed(struct sir_dev *dev, unsigned speed);
67static int old_belkin_reset(struct sir_dev *dev);
68
69static struct dongle_driver old_belkin = {
70 .owner = THIS_MODULE,
71 .driver_name = "Old Belkin SmartBeam",
72 .type = IRDA_OLD_BELKIN_DONGLE,
73 .open = old_belkin_open,
74 .close = old_belkin_close,
75 .reset = old_belkin_reset,
76 .set_speed = old_belkin_change_speed,
77};
78
79static int __init old_belkin_sir_init(void)
80{
81 return irda_register_dongle(&old_belkin);
82}
83
84static void __exit old_belkin_sir_cleanup(void)
85{
86 irda_unregister_dongle(&old_belkin);
87}
88
89static int old_belkin_open(struct sir_dev *dev)
90{
91 struct qos_info *qos = &dev->qos;
92
93 /* Power on dongle */
94 sirdev_set_dtr_rts(dev, TRUE, TRUE);
95
96 /* Not too fast, please... */
97 qos->baud_rate.bits &= IR_9600;
98 /* Needs at least 10 ms (totally wild guess, can do probably better) */
99 qos->min_turn_time.bits = 0x01;
100 irda_qos_bits_to_value(qos);
101
102 /* irda thread waits 50 msec for power settling */
103
104 return 0;
105}
106
107static int old_belkin_close(struct sir_dev *dev)
108{
109 /* Power off dongle */
110 sirdev_set_dtr_rts(dev, FALSE, FALSE);
111
112 return 0;
113}
114
115/*
116 * Function old_belkin_change_speed (task)
117 *
118 * With only one speed available, not much to do...
119 */
120static int old_belkin_change_speed(struct sir_dev *dev, unsigned speed)
121{
122 dev->speed = 9600;
123 return (speed==dev->speed) ? 0 : -EINVAL;
124}
125
126/*
127 * Function old_belkin_reset (task)
128 *
129 * Reset the Old-Belkin type dongle.
130 *
131 */
132static int old_belkin_reset(struct sir_dev *dev)
133{
134 /* This dongles speed "defaults" to 9600 bps ;-) */
135 dev->speed = 9600;
136
137 return 0;
138}
139
140MODULE_AUTHOR("Jean Tourrilhes <jt@hpl.hp.com>");
141MODULE_DESCRIPTION("Belkin (old) SmartBeam dongle driver");
142MODULE_LICENSE("GPL");
143MODULE_ALIAS("irda-dongle-7"); /* IRDA_OLD_BELKIN_DONGLE */
144
145module_init(old_belkin_sir_init);
146module_exit(old_belkin_sir_cleanup);