1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
|
/*
* Driver for ST5481 USB ISDN modem
*
* Author Frode Isaksen
* Copyright 2001 by Frode Isaksen <fisaksen@bewan.com>
* 2001 by Kai Germaschewski <kai.germaschewski@gmx.de>
*
* This software may be used and distributed according to the terms
* of the GNU General Public License, incorporated herein by reference.
*
*/
/*
* TODO:
*
* b layer1 delay?
* hotplug / unregister issues
* mod_inc/dec_use_count
* unify parts of d/b channel usb handling
* file header
* avoid copy to isoc buffer?
* improve usb delay?
* merge l1 state machines?
* clean up debug
*/
#include <linux/config.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/usb.h>
#include <linux/slab.h>
#include "st5481.h"
MODULE_DESCRIPTION("ISDN4Linux: driver for ST5481 USB ISDN adapter");
MODULE_AUTHOR("Frode Isaksen");
MODULE_LICENSE("GPL");
static int protocol = 2; /* EURO-ISDN Default */
module_param(protocol, int, 0);
static int number_of_leds = 2; /* 2 LEDs on the adpater default */
module_param(number_of_leds, int, 0);
#ifdef CONFIG_HISAX_DEBUG
static int debug = 0;
module_param(debug, int, 0);
#endif
int st5481_debug;
static LIST_HEAD(adapter_list);
/* ======================================================================
* registration/deregistration with the USB layer
*/
/*
* This function will be called when the adapter is plugged
* into the USB bus.
*/
static int probe_st5481(struct usb_interface *intf,
const struct usb_device_id *id)
{
struct usb_device *dev = interface_to_usbdev(intf);
struct st5481_adapter *adapter;
struct hisax_b_if *b_if[2];
int retval, i;
printk(KERN_INFO "st541: found adapter VendorId %04x, ProductId %04x, LEDs %d\n",
le16_to_cpu(dev->descriptor.idVendor),
le16_to_cpu(dev->descriptor.idProduct),
number_of_leds);
adapter = kmalloc(sizeof(struct st5481_adapter), GFP_KERNEL);
if (!adapter)
return -ENOMEM;
memset(adapter, 0, sizeof(struct st5481_adapter));
adapter->number_of_leds = number_of_leds;
adapter->usb_dev = dev;
adapter->hisax_d_if.owner = THIS_MODULE;
adapter->hisax_d_if.ifc.priv = adapter;
adapter->hisax_d_if.ifc.l2l1 = st5481_d_l2l1;
for (i = 0; i < 2; i++) {
adapter->bcs[i].adapter = adapter;
adapter->bcs[i].channel = i;
adapter->bcs[i].b_if.ifc.priv = &adapter->bcs[i];
adapter->bcs[i].b_if.ifc.l2l1 = st5481_b_l2l1;
}
list_add(&adapter->list, &adapter_list);
retval = st5481_setup_usb(adapter);
if (retval < 0)
goto err;
retval = st5481_setup_d(adapter);
if (retval < 0)
goto err_usb;
retval = st5481_setup_b(&adapter->bcs[0]);
if (retval < 0)
goto err_d;
retval = st5481_setup_b(&adapter->bcs[1]);
if (retval < 0)
goto err_b;
for (i = 0; i < 2; i++)
b_if[i] = &adapter->bcs[i].b_if;
hisax_register(&adapter->hisax_d_if, b_if, "st5481_usb", protocol);
st5481_start(adapter);
usb_set_intfdata(intf, adapter);
return 0;
err_b:
st5481_release_b(&adapter->bcs[0]);
err_d:
st5481_release_d(adapter);
err_usb:
st5481_release_usb(adapter);
err:
return -EIO;
}
/*
* This function will be called when the adapter is removed
* from the USB bus.
*/
static void disconnect_st5481(struct usb_interface *intf)
{
struct st5481_adapter *adapter = usb_get_intfdata(intf);
DBG(1,"");
usb_set_intfdata(intf, NULL);
if (!adapter)
return;
list_del(&adapter->list);
st5481_stop(adapter);
st5481_release_b(&adapter->bcs[1]);
st5481_release_b(&adapter->bcs[0]);
st5481_release_d(adapter);
// we would actually better wait for completion of outstanding urbs
mdelay(2);
st5481_release_usb(adapter);
hisax_unregister(&adapter->hisax_d_if);
kfree(adapter);
}
/*
* The last 4 bits in the Product Id is set with 4 pins on the chip.
*/
static struct usb_device_id st5481_ids[] = {
{ USB_DEVICE(ST_VENDOR_ID, ST5481_PRODUCT_ID+0x0) },
{ USB_DEVICE(ST_VENDOR_ID, ST5481_PRODUCT_ID+0x1) },
{ USB_DEVICE(ST_VENDOR_ID, ST5481_PRODUCT_ID+0x2) },
{ USB_DEVICE(ST_VENDOR_ID, ST5481_PRODUCT_ID+0x3) },
{ USB_DEVICE(ST_VENDOR_ID, ST5481_PRODUCT_ID+0x4) },
{ USB_DEVICE(ST_VENDOR_ID, ST5481_PRODUCT_ID+0x5) },
{ USB_DEVICE(ST_VENDOR_ID, ST5481_PRODUCT_ID+0x6) },
{ USB_DEVICE(ST_VENDOR_ID, ST5481_PRODUCT_ID+0x7) },
{ USB_DEVICE(ST_VENDOR_ID, ST5481_PRODUCT_ID+0x8) },
{ USB_DEVICE(ST_VENDOR_ID, ST5481_PRODUCT_ID+0x9) },
{ USB_DEVICE(ST_VENDOR_ID, ST5481_PRODUCT_ID+0xA) },
{ USB_DEVICE(ST_VENDOR_ID, ST5481_PRODUCT_ID+0xB) },
{ USB_DEVICE(ST_VENDOR_ID, ST5481_PRODUCT_ID+0xC) },
{ USB_DEVICE(ST_VENDOR_ID, ST5481_PRODUCT_ID+0xD) },
{ USB_DEVICE(ST_VENDOR_ID, ST5481_PRODUCT_ID+0xE) },
{ USB_DEVICE(ST_VENDOR_ID, ST5481_PRODUCT_ID+0xF) },
{ }
};
MODULE_DEVICE_TABLE (usb, st5481_ids);
static struct usb_driver st5481_usb_driver = {
.name = "st5481_usb",
.probe = probe_st5481,
.disconnect = disconnect_st5481,
.id_table = st5481_ids,
};
static int __init st5481_usb_init(void)
{
int retval;
#ifdef CONFIG_HISAX_DEBUG
st5481_debug = debug;
#endif
printk(KERN_INFO "hisax_st5481: ST5481 USB ISDN driver $Revision: 2.4.2.3 $\n");
retval = st5481_d_init();
if (retval < 0)
goto out;
retval = usb_register(&st5481_usb_driver);
if (retval < 0)
goto out_d_exit;
return 0;
out_d_exit:
st5481_d_exit();
out:
return retval;
}
static void __exit st5481_usb_exit(void)
{
usb_deregister(&st5481_usb_driver);
st5481_d_exit();
}
module_init(st5481_usb_init);
module_exit(st5481_usb_exit);
|
