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
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
|
/*
* $Id: iforce-usb.c,v 1.16 2002/06/09 11:08:04 jdeneux Exp $
*
* Copyright (c) 2000-2002 Vojtech Pavlik <vojtech@ucw.cz>
* Copyright (c) 2001-2002 Johann Deneux <deneux@ifrance.com>
*
* USB/RS232 I-Force joysticks and wheels.
*/
/*
* 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
*
* Should you need to contact me, the author, you can do so either by
* e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
* Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
*/
#include "iforce.h"
void iforce_usb_xmit(struct iforce *iforce)
{
int n, c;
unsigned long flags;
spin_lock_irqsave(&iforce->xmit_lock, flags);
if (iforce->xmit.head == iforce->xmit.tail) {
clear_bit(IFORCE_XMIT_RUNNING, iforce->xmit_flags);
spin_unlock_irqrestore(&iforce->xmit_lock, flags);
return;
}
((char *)iforce->out->transfer_buffer)[0] = iforce->xmit.buf[iforce->xmit.tail];
XMIT_INC(iforce->xmit.tail, 1);
n = iforce->xmit.buf[iforce->xmit.tail];
XMIT_INC(iforce->xmit.tail, 1);
iforce->out->transfer_buffer_length = n + 1;
iforce->out->dev = iforce->usbdev;
/* Copy rest of data then */
c = CIRC_CNT_TO_END(iforce->xmit.head, iforce->xmit.tail, XMIT_SIZE);
if (n < c) c=n;
memcpy(iforce->out->transfer_buffer + 1,
&iforce->xmit.buf[iforce->xmit.tail],
c);
if (n != c) {
memcpy(iforce->out->transfer_buffer + 1 + c,
&iforce->xmit.buf[0],
n-c);
}
XMIT_INC(iforce->xmit.tail, n);
if ( (n=usb_submit_urb(iforce->out, GFP_ATOMIC)) ) {
printk(KERN_WARNING "iforce-usb.c: iforce_usb_xmit: usb_submit_urb failed %d\n", n);
}
/* The IFORCE_XMIT_RUNNING bit is not cleared here. That's intended.
* As long as the urb completion handler is not called, the transmiting
* is considered to be running */
spin_unlock_irqrestore(&iforce->xmit_lock, flags);
}
static void iforce_usb_irq(struct urb *urb)
{
struct iforce *iforce = urb->context;
int status;
switch (urb->status) {
case 0:
/* success */
break;
case -ECONNRESET:
case -ENOENT:
case -ESHUTDOWN:
/* this urb is terminated, clean up */
dbg("%s - urb shutting down with status: %d",
__FUNCTION__, urb->status);
return;
default:
dbg("%s - urb has status of: %d", __FUNCTION__, urb->status);
goto exit;
}
iforce_process_packet(iforce,
(iforce->data[0] << 8) | (urb->actual_length - 1), iforce->data + 1);
exit:
status = usb_submit_urb (urb, GFP_ATOMIC);
if (status)
err ("%s - usb_submit_urb failed with result %d",
__FUNCTION__, status);
}
static void iforce_usb_out(struct urb *urb)
{
struct iforce *iforce = urb->context;
if (urb->status) {
printk(KERN_DEBUG "iforce_usb_out: urb->status %d, exiting", urb->status);
return;
}
iforce_usb_xmit(iforce);
wake_up(&iforce->wait);
}
static void iforce_usb_ctrl(struct urb *urb)
{
struct iforce *iforce = urb->context;
if (urb->status) return;
iforce->ecmd = 0xff00 | urb->actual_length;
wake_up(&iforce->wait);
}
static int iforce_usb_probe(struct usb_interface *intf,
const struct usb_device_id *id)
{
struct usb_device *dev = interface_to_usbdev(intf);
struct usb_host_interface *interface;
struct usb_endpoint_descriptor *epirq, *epout;
struct iforce *iforce;
int err = -ENOMEM;
interface = intf->cur_altsetting;
epirq = &interface->endpoint[0].desc;
epout = &interface->endpoint[1].desc;
if (!(iforce = kzalloc(sizeof(struct iforce) + 32, GFP_KERNEL)))
goto fail;
if (!(iforce->irq = usb_alloc_urb(0, GFP_KERNEL)))
goto fail;
if (!(iforce->out = usb_alloc_urb(0, GFP_KERNEL)))
goto fail;
if (!(iforce->ctrl = usb_alloc_urb(0, GFP_KERNEL)))
goto fail;
iforce->bus = IFORCE_USB;
iforce->usbdev = dev;
iforce->cr.bRequestType = USB_TYPE_VENDOR | USB_DIR_IN | USB_RECIP_INTERFACE;
iforce->cr.wIndex = 0;
iforce->cr.wLength = 16;
usb_fill_int_urb(iforce->irq, dev, usb_rcvintpipe(dev, epirq->bEndpointAddress),
iforce->data, 16, iforce_usb_irq, iforce, epirq->bInterval);
usb_fill_bulk_urb(iforce->out, dev, usb_sndbulkpipe(dev, epout->bEndpointAddress),
iforce + 1, 32, iforce_usb_out, iforce);
usb_fill_control_urb(iforce->ctrl, dev, usb_rcvctrlpipe(dev, 0),
(void*) &iforce->cr, iforce->edata, 16, iforce_usb_ctrl, iforce);
err = iforce_init_device(iforce);
if (err)
goto fail;
usb_set_intfdata(intf, iforce);
return 0;
fail:
if (iforce) {
if (iforce->irq) usb_free_urb(iforce->irq);
if (iforce->out) usb_free_urb(iforce->out);
if (iforce->ctrl) usb_free_urb(iforce->ctrl);
kfree(iforce);
}
return err;
}
/* Called by iforce_delete() */
void iforce_usb_delete(struct iforce* iforce)
{
usb_unlink_urb(iforce->irq);
/* Is it ok to unlink those ? */
usb_unlink_urb(iforce->out);
usb_unlink_urb(iforce->ctrl);
usb_free_urb(iforce->irq);
usb_free_urb(iforce->out);
usb_free_urb(iforce->ctrl);
}
static void iforce_usb_disconnect(struct usb_interface *intf)
{
struct iforce *iforce = usb_get_intfdata(intf);
int open = 0; /* FIXME! iforce->dev.handle->open; */
usb_set_intfdata(intf, NULL);
if (iforce) {
iforce->usbdev = NULL;
input_unregister_device(iforce->dev);
if (!open) {
iforce_delete_device(iforce);
kfree(iforce);
}
}
}
static struct usb_device_id iforce_usb_ids [] = {
{ USB_DEVICE(0x044f, 0xa01c) }, /* Thrustmaster Motor Sport GT */
{ USB_DEVICE(0x046d, 0xc281) }, /* Logitech WingMan Force */
{ USB_DEVICE(0x046d, 0xc291) }, /* Logitech WingMan Formula Force */
{ USB_DEVICE(0x05ef, 0x020a) }, /* AVB Top Shot Pegasus */
{ USB_DEVICE(0x05ef, 0x8884) }, /* AVB Mag Turbo Force */
{ USB_DEVICE(0x05ef, 0x8888) }, /* AVB Top Shot FFB Racing Wheel */
{ USB_DEVICE(0x061c, 0xc0a4) }, /* ACT LABS Force RS */
{ USB_DEVICE(0x06f8, 0x0001) }, /* Guillemot Race Leader Force Feedback */
{ USB_DEVICE(0x06f8, 0x0004) }, /* Guillemot Force Feedback Racing Wheel */
{ USB_DEVICE(0x06f8, 0xa302) }, /* Guillemot Jet Leader 3D */
{ } /* Terminating entry */
};
MODULE_DEVICE_TABLE (usb, iforce_usb_ids);
struct usb_driver iforce_usb_driver = {
.name = "iforce",
.probe = iforce_usb_probe,
.disconnect = iforce_usb_disconnect,
.id_table = iforce_usb_ids,
};
|
