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
|
/*
* Force feedback support for GreenAsia (Product ID 0x12) based devices
*
* The devices are distributed under various names and the same USB device ID
* can be used in many game controllers.
*
*
* 0e8f:0012 "GreenAsia Inc. USB Joystick "
* - tested with MANTA Warior MM816 and SpeedLink Strike2 SL-6635.
*
* Copyright (c) 2008 Lukasz Lubojanski <lukasz@lubojanski.info>
*/
/*
* 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/input.h>
#include <linux/slab.h>
#include <linux/usb.h>
#include <linux/hid.h>
#include "hid-ids.h"
#ifdef CONFIG_GREENASIA_FF
#include "usbhid/usbhid.h"
struct gaff_device {
struct hid_report *report;
};
static int hid_gaff_play(struct input_dev *dev, void *data,
struct ff_effect *effect)
{
struct hid_device *hid = input_get_drvdata(dev);
struct gaff_device *gaff = data;
int left, right;
left = effect->u.rumble.strong_magnitude;
right = effect->u.rumble.weak_magnitude;
dbg_hid("called with 0x%04x 0x%04x", left, right);
left = left * 0xfe / 0xffff;
right = right * 0xfe / 0xffff;
gaff->report->field[0]->value[0] = 0x51;
gaff->report->field[0]->value[1] = 0x0;
gaff->report->field[0]->value[2] = right;
gaff->report->field[0]->value[3] = 0;
gaff->report->field[0]->value[4] = left;
gaff->report->field[0]->value[5] = 0;
dbg_hid("running with 0x%02x 0x%02x", left, right);
usbhid_submit_report(hid, gaff->report, USB_DIR_OUT);
gaff->report->field[0]->value[0] = 0xfa;
gaff->report->field[0]->value[1] = 0xfe;
gaff->report->field[0]->value[2] = 0x0;
gaff->report->field[0]->value[4] = 0x0;
usbhid_submit_report(hid, gaff->report, USB_DIR_OUT);
return 0;
}
static int gaff_init(struct hid_device *hid)
{
struct gaff_device *gaff;
struct hid_report *report;
struct hid_input *hidinput = list_entry(hid->inputs.next,
struct hid_input, list);
struct list_head *report_list =
&hid->report_enum[HID_OUTPUT_REPORT].report_list;
struct list_head *report_ptr = report_list;
struct input_dev *dev = hidinput->input;
int error;
if (list_empty(report_list)) {
hid_err(hid, "no output reports found\n");
return -ENODEV;
}
report_ptr = report_ptr->next;
report = list_entry(report_ptr, struct hid_report, list);
if (report->maxfield < 1) {
hid_err(hid, "no fields in the report\n");
return -ENODEV;
}
if (report->field[0]->report_count < 6) {
hid_err(hid, "not enough values in the field\n");
return -ENODEV;
}
gaff = kzalloc(sizeof(struct gaff_device), GFP_KERNEL);
if (!gaff)
return -ENOMEM;
set_bit(FF_RUMBLE, dev->ffbit);
error = input_ff_create_memless(dev, gaff, hid_gaff_play);
if (error) {
kfree(gaff);
return error;
}
gaff->report = report;
gaff->report->field[0]->value[0] = 0x51;
gaff->report->field[0]->value[1] = 0x00;
gaff->report->field[0]->value[2] = 0x00;
gaff->report->field[0]->value[3] = 0x00;
usbhid_submit_report(hid, gaff->report, USB_DIR_OUT);
gaff->report->field[0]->value[0] = 0xfa;
gaff->report->field[0]->value[1] = 0xfe;
usbhid_submit_report(hid, gaff->report, USB_DIR_OUT);
hid_info(hid, "Force Feedback for GreenAsia 0x12 devices by Lukasz Lubojanski <lukasz@lubojanski.info>\n");
return 0;
}
#else
static inline int gaff_init(struct hid_device *hdev)
{
return 0;
}
#endif
static int ga_probe(struct hid_device *hdev, const struct hid_device_id *id)
{
int ret;
dev_dbg(&hdev->dev, "Greenasia HID hardware probe...");
ret = hid_parse(hdev);
if (ret) {
hid_err(hdev, "parse failed\n");
goto err;
}
ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT & ~HID_CONNECT_FF);
if (ret) {
hid_err(hdev, "hw start failed\n");
goto err;
}
gaff_init(hdev);
return 0;
err:
return ret;
}
static const struct hid_device_id ga_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_GREENASIA, 0x0012), },
{ }
};
MODULE_DEVICE_TABLE(hid, ga_devices);
static struct hid_driver ga_driver = {
.name = "greenasia",
.id_table = ga_devices,
.probe = ga_probe,
};
static int __init ga_init(void)
{
return hid_register_driver(&ga_driver);
}
static void __exit ga_exit(void)
{
hid_unregister_driver(&ga_driver);
}
module_init(ga_init);
module_exit(ga_exit);
MODULE_LICENSE("GPL");
|
