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
|
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Force feedback support for ACRUX game controllers
*
* From what I have gathered, these devices are mass produced in China
* by several vendors. They often share the same design as the original
* Xbox 360 controller.
*
* 1a34:0802 "ACRUX USB GAMEPAD 8116"
* - tested with an EXEQ EQ-PCU-02090 game controller.
*
* Copyright (c) 2010 Sergei Kolzun <x0r@dv-life.ru>
*/
/*
*/
#include <linux/input.h>
#include <linux/slab.h>
#include <linux/hid.h>
#include <linux/module.h>
#include "hid-ids.h"
#ifdef CONFIG_HID_ACRUX_FF
struct axff_device {
struct hid_report *report;
};
static int axff_play(struct input_dev *dev, void *data, struct ff_effect *effect)
{
struct hid_device *hid = input_get_drvdata(dev);
struct axff_device *axff = data;
struct hid_report *report = axff->report;
int field_count = 0;
int left, right;
int i, j;
left = effect->u.rumble.strong_magnitude;
right = effect->u.rumble.weak_magnitude;
dbg_hid("called with 0x%04x 0x%04x", left, right);
left = left * 0xff / 0xffff;
right = right * 0xff / 0xffff;
for (i = 0; i < report->maxfield; i++) {
for (j = 0; j < report->field[i]->report_count; j++) {
report->field[i]->value[j] =
field_count % 2 ? right : left;
field_count++;
}
}
dbg_hid("running with 0x%02x 0x%02x", left, right);
hid_hw_request(hid, axff->report, HID_REQ_SET_REPORT);
return 0;
}
static int axff_init(struct hid_device *hid)
{
struct axff_device *axff;
struct hid_report *report;
struct hid_input *hidinput = list_first_entry(&hid->inputs, struct hid_input, list);
struct list_head *report_list =&hid->report_enum[HID_OUTPUT_REPORT].report_list;
struct input_dev *dev = hidinput->input;
int field_count = 0;
int i, j;
int error;
if (list_empty(report_list)) {
hid_err(hid, "no output reports found\n");
return -ENODEV;
}
report = list_first_entry(report_list, struct hid_report, list);
for (i = 0; i < report->maxfield; i++) {
for (j = 0; j < report->field[i]->report_count; j++) {
report->field[i]->value[j] = 0x00;
field_count++;
}
}
if (field_count < 4 && hid->product != 0xf705) {
hid_err(hid, "not enough fields in the report: %d\n",
field_count);
return -ENODEV;
}
axff = kzalloc(sizeof(struct axff_device), GFP_KERNEL);
if (!axff)
return -ENOMEM;
set_bit(FF_RUMBLE, dev->ffbit);
error = input_ff_create_memless(dev, axff, axff_play);
if (error)
goto err_free_mem;
axff->report = report;
hid_hw_request(hid, axff->report, HID_REQ_SET_REPORT);
hid_info(hid, "Force Feedback for ACRUX game controllers by Sergei Kolzun <x0r@dv-life.ru>\n");
return 0;
err_free_mem:
kfree(axff);
return error;
}
#else
static inline int axff_init(struct hid_device *hid)
{
return 0;
}
#endif
static int ax_probe(struct hid_device *hdev, const struct hid_device_id *id)
{
int error;
dev_dbg(&hdev->dev, "ACRUX HID hardware probe...\n");
error = hid_parse(hdev);
if (error) {
hid_err(hdev, "parse failed\n");
return error;
}
error = hid_hw_start(hdev, HID_CONNECT_DEFAULT & ~HID_CONNECT_FF);
if (error) {
hid_err(hdev, "hw start failed\n");
return error;
}
error = axff_init(hdev);
if (error) {
/*
* Do not fail device initialization completely as device
* may still be partially operable, just warn.
*/
hid_warn(hdev,
"Failed to enable force feedback support, error: %d\n",
error);
}
/*
* We need to start polling device right away, otherwise
* it will go into a coma.
*/
error = hid_hw_open(hdev);
if (error) {
dev_err(&hdev->dev, "hw open failed\n");
hid_hw_stop(hdev);
return error;
}
return 0;
}
static void ax_remove(struct hid_device *hdev)
{
hid_hw_close(hdev);
hid_hw_stop(hdev);
}
static const struct hid_device_id ax_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_ACRUX, 0x0802), },
{ HID_USB_DEVICE(USB_VENDOR_ID_ACRUX, 0xf705), },
{ }
};
MODULE_DEVICE_TABLE(hid, ax_devices);
static struct hid_driver ax_driver = {
.name = "acrux",
.id_table = ax_devices,
.probe = ax_probe,
.remove = ax_remove,
};
module_hid_driver(ax_driver);
MODULE_AUTHOR("Sergei Kolzun");
MODULE_DESCRIPTION("Force feedback support for ACRUX game controllers");
MODULE_LICENSE("GPL");
|
