tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
HID: betop: add drivers/hid/hid-betopff.c
Commit fc38a8a66e ("HID: add BETOP game controller force feedback support")
is missing the actual addition of drivers/hid/hid-betopff.c due to my
mistake (I forgot to add the file after fixing conflicts).
Fixes: fc38a8a66e1b ("HID: add BETOP game controller force feedback support")
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
+160
+160
drivers/hid/hid-betopff.c
+160
drivers/hid/hid-betopff.c
···
1
+
/*
2
+
* Force feedback support for Betop based devices
3
+
*
4
+
* The devices are distributed under various names and the same USB device ID
5
+
* can be used in both adapters and actual game controllers.
6
+
*
7
+
* 0x11c2:0x2208 "BTP2185 BFM mode Joystick"
8
+
* - tested with BTP2185 BFM Mode.
9
+
*
10
+
* 0x11C0:0x5506 "BTP2185 PC mode Joystick"
11
+
* - tested with BTP2185 PC Mode.
12
+
*
13
+
* 0x8380:0x1850 "BTP2185 V2 PC mode USB Gamepad"
14
+
* - tested with BTP2185 PC Mode with another version.
15
+
*
16
+
* 0x20bc:0x5500 "BTP2185 V2 BFM mode Joystick"
17
+
* - tested with BTP2171s.
18
+
* Copyright (c) 2014 Huang Bo <huangbobupt@163.com>
19
+
*/
20
+
21
+
/*
22
+
* This program is free software; you can redistribute it and/or modify it
23
+
* under the terms of the GNU General Public License as published by the Free
24
+
* Software Foundation; either version 2 of the License, or (at your option)
25
+
* any later version.
26
+
*/
27
+
28
+
29
+
#include <linux/input.h>
30
+
#include <linux/slab.h>
31
+
#include <linux/module.h>
32
+
#include <linux/hid.h>
33
+
34
+
#include "hid-ids.h"
35
+
36
+
struct betopff_device {
37
+
struct hid_report *report;
38
+
};
39
+
40
+
static int hid_betopff_play(struct input_dev *dev, void *data,
41
+
struct ff_effect *effect)
42
+
{
43
+
struct hid_device *hid = input_get_drvdata(dev);
44
+
struct betopff_device *betopff = data;
45
+
__u16 left, right;
46
+
47
+
left = effect->u.rumble.strong_magnitude;
48
+
right = effect->u.rumble.weak_magnitude;
49
+
50
+
betopff->report->field[2]->value[0] = left / 256;
51
+
betopff->report->field[3]->value[0] = right / 256;
52
+
53
+
hid_hw_request(hid, betopff->report, HID_REQ_SET_REPORT);
54
+
55
+
return 0;
56
+
}
57
+
58
+
static int betopff_init(struct hid_device *hid)
59
+
{
60
+
struct betopff_device *betopff;
61
+
struct hid_report *report;
62
+
struct hid_input *hidinput =
63
+
list_first_entry(&hid->inputs, struct hid_input, list);
64
+
struct list_head *report_list =
65
+
&hid->report_enum[HID_OUTPUT_REPORT].report_list;
66
+
struct input_dev *dev = hidinput->input;
67
+
int field_count = 0;
68
+
int error;
69
+
int i, j;
70
+
71
+
if (list_empty(report_list)) {
72
+
hid_err(hid, "no output reports found\n");
73
+
return -ENODEV;
74
+
}
75
+
76
+
report = list_first_entry(report_list, struct hid_report, list);
77
+
/*
78
+
* Actually there are 4 fields for 4 Bytes as below:
79
+
* -----------------------------------------
80
+
* Byte0 Byte1 Byte2 Byte3
81
+
* 0x00 0x00 left_motor right_motor
82
+
* -----------------------------------------
83
+
* Do init them with default value.
84
+
*/
85
+
for (i = 0; i < report->maxfield; i++) {
86
+
for (j = 0; j < report->field[i]->report_count; j++) {
87
+
report->field[i]->value[j] = 0x00;
88
+
field_count++;
89
+
}
90
+
}
91
+
92
+
if (field_count < 4) {
93
+
hid_err(hid, "not enough fields in the report: %d\n",
94
+
field_count);
95
+
return -ENODEV;
96
+
}
97
+
98
+
betopff = kzalloc(sizeof(*betopff), GFP_KERNEL);
99
+
if (!betopff)
100
+
return -ENOMEM;
101
+
102
+
set_bit(FF_RUMBLE, dev->ffbit);
103
+
104
+
error = input_ff_create_memless(dev, betopff, hid_betopff_play);
105
+
if (error) {
106
+
kfree(betopff);
107
+
return error;
108
+
}
109
+
110
+
betopff->report = report;
111
+
hid_hw_request(hid, betopff->report, HID_REQ_SET_REPORT);
112
+
113
+
hid_info(hid, "Force feedback for betop devices by huangbo <huangbobupt@163.com>\n");
114
+
115
+
return 0;
116
+
}
117
+
118
+
static int betop_probe(struct hid_device *hdev, const struct hid_device_id *id)
119
+
{
120
+
int ret;
121
+
122
+
if (id->driver_data)
123
+
hdev->quirks |= HID_QUIRK_MULTI_INPUT;
124
+
125
+
ret = hid_parse(hdev);
126
+
if (ret) {
127
+
hid_err(hdev, "parse failed\n");
128
+
goto err;
129
+
}
130
+
131
+
ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT & ~HID_CONNECT_FF);
132
+
if (ret) {
133
+
hid_err(hdev, "hw start failed\n");
134
+
goto err;
135
+
}
136
+
137
+
betopff_init(hdev);
138
+
139
+
return 0;
140
+
err:
141
+
return ret;
142
+
}
143
+
144
+
static const struct hid_device_id betop_devices[] = {
145
+
{ HID_USB_DEVICE(USB_VENDOR_ID_BETOP_2185BFM, 0x2208) },
146
+
{ HID_USB_DEVICE(USB_VENDOR_ID_BETOP_2185PC, 0x5506) },
147
+
{ HID_USB_DEVICE(USB_VENDOR_ID_BETOP_2185V2PC, 0x1850) },
148
+
{ HID_USB_DEVICE(USB_VENDOR_ID_BETOP_2185V2BFM, 0x5500) },
149
+
{ }
150
+
};
151
+
MODULE_DEVICE_TABLE(hid, betop_devices);
152
+
153
+
static struct hid_driver betop_driver = {
154
+
.name = "betop",
155
+
.id_table = betop_devices,
156
+
.probe = betop_probe,
157
+
};
158
+
module_hid_driver(betop_driver);
159
+
160
+
MODULE_LICENSE("GPL");