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
|
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* HID driver for Saitek devices.
*
* PS1000 (USB gamepad):
* Fixes the HID report descriptor by removing a non-existent axis and
* clearing the constant bit on the input reports for buttons and d-pad.
* (This module is based on "hid-ortek".)
* Copyright (c) 2012 Andreas Hübner
*
* R.A.T.7, R.A.T.9, M.M.O.7 (USB gaming mice):
* Fixes the mode button which cycles through three constantly pressed
* buttons. All three press events are mapped to one button and the
* missing release event is generated immediately.
*/
/*
*/
#include <linux/device.h>
#include <linux/hid.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include "hid-ids.h"
#define SAITEK_FIX_PS1000 0x0001
#define SAITEK_RELEASE_MODE_RAT7 0x0002
#define SAITEK_RELEASE_MODE_MMO7 0x0004
struct saitek_sc {
unsigned long quirks;
int mode;
};
static int saitek_probe(struct hid_device *hdev,
const struct hid_device_id *id)
{
unsigned long quirks = id->driver_data;
struct saitek_sc *ssc;
int ret;
ssc = devm_kzalloc(&hdev->dev, sizeof(*ssc), GFP_KERNEL);
if (ssc == NULL) {
hid_err(hdev, "can't alloc saitek descriptor\n");
return -ENOMEM;
}
ssc->quirks = quirks;
ssc->mode = -1;
hid_set_drvdata(hdev, ssc);
ret = hid_parse(hdev);
if (ret) {
hid_err(hdev, "parse failed\n");
return ret;
}
ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
if (ret) {
hid_err(hdev, "hw start failed\n");
return ret;
}
return 0;
}
static __u8 *saitek_report_fixup(struct hid_device *hdev, __u8 *rdesc,
unsigned int *rsize)
{
struct saitek_sc *ssc = hid_get_drvdata(hdev);
if ((ssc->quirks & SAITEK_FIX_PS1000) && *rsize == 137 &&
rdesc[20] == 0x09 && rdesc[21] == 0x33 &&
rdesc[94] == 0x81 && rdesc[95] == 0x03 &&
rdesc[110] == 0x81 && rdesc[111] == 0x03) {
hid_info(hdev, "Fixing up Saitek PS1000 report descriptor\n");
/* convert spurious axis to a "noop" Logical Minimum (0) */
rdesc[20] = 0x15;
rdesc[21] = 0x00;
/* clear constant bit on buttons and d-pad */
rdesc[95] = 0x02;
rdesc[111] = 0x02;
}
return rdesc;
}
static int saitek_raw_event(struct hid_device *hdev,
struct hid_report *report, u8 *raw_data, int size)
{
struct saitek_sc *ssc = hid_get_drvdata(hdev);
if (ssc->quirks & SAITEK_RELEASE_MODE_RAT7 && size == 7) {
/* R.A.T.7 uses bits 13, 14, 15 for the mode */
int mode = -1;
if (raw_data[1] & 0x01)
mode = 0;
else if (raw_data[1] & 0x02)
mode = 1;
else if (raw_data[1] & 0x04)
mode = 2;
/* clear mode bits */
raw_data[1] &= ~0x07;
if (mode != ssc->mode) {
hid_dbg(hdev, "entered mode %d\n", mode);
if (ssc->mode != -1) {
/* use bit 13 as the mode button */
raw_data[1] |= 0x04;
}
ssc->mode = mode;
}
} else if (ssc->quirks & SAITEK_RELEASE_MODE_MMO7 && size == 8) {
/* M.M.O.7 uses bits 8, 22, 23 for the mode */
int mode = -1;
if (raw_data[1] & 0x80)
mode = 0;
else if (raw_data[2] & 0x01)
mode = 1;
else if (raw_data[2] & 0x02)
mode = 2;
/* clear mode bits */
raw_data[1] &= ~0x80;
raw_data[2] &= ~0x03;
if (mode != ssc->mode) {
hid_dbg(hdev, "entered mode %d\n", mode);
if (ssc->mode != -1) {
/* use bit 8 as the mode button, bits 22
* and 23 do not represent buttons
* according to the HID report descriptor
*/
raw_data[1] |= 0x80;
}
ssc->mode = mode;
}
}
return 0;
}
static int saitek_event(struct hid_device *hdev, struct hid_field *field,
struct hid_usage *usage, __s32 value)
{
struct saitek_sc *ssc = hid_get_drvdata(hdev);
struct input_dev *input = field->hidinput->input;
if (usage->type == EV_KEY && value &&
(((ssc->quirks & SAITEK_RELEASE_MODE_RAT7) &&
usage->code - BTN_MOUSE == 10) ||
((ssc->quirks & SAITEK_RELEASE_MODE_MMO7) &&
usage->code - BTN_MOUSE == 15))) {
input_report_key(input, usage->code, 1);
/* report missing release event */
input_report_key(input, usage->code, 0);
return 1;
}
return 0;
}
static const struct hid_device_id saitek_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_PS1000),
.driver_data = SAITEK_FIX_PS1000 },
{ HID_USB_DEVICE(USB_VENDOR_ID_MADCATZ, USB_DEVICE_ID_MADCATZ_RAT5),
.driver_data = SAITEK_RELEASE_MODE_RAT7 },
{ HID_USB_DEVICE(USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_RAT7_OLD),
.driver_data = SAITEK_RELEASE_MODE_RAT7 },
{ HID_USB_DEVICE(USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_RAT7),
.driver_data = SAITEK_RELEASE_MODE_RAT7 },
{ HID_USB_DEVICE(USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_RAT7_CONTAGION),
.driver_data = SAITEK_RELEASE_MODE_RAT7 },
{ HID_USB_DEVICE(USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_RAT9),
.driver_data = SAITEK_RELEASE_MODE_RAT7 },
{ HID_USB_DEVICE(USB_VENDOR_ID_MADCATZ, USB_DEVICE_ID_MADCATZ_RAT9),
.driver_data = SAITEK_RELEASE_MODE_RAT7 },
{ HID_USB_DEVICE(USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_MMO7),
.driver_data = SAITEK_RELEASE_MODE_MMO7 },
{ HID_USB_DEVICE(USB_VENDOR_ID_MADCATZ, USB_DEVICE_ID_MADCATZ_MMO7),
.driver_data = SAITEK_RELEASE_MODE_MMO7 },
{ }
};
MODULE_DEVICE_TABLE(hid, saitek_devices);
static struct hid_driver saitek_driver = {
.name = "saitek",
.id_table = saitek_devices,
.probe = saitek_probe,
.report_fixup = saitek_report_fixup,
.raw_event = saitek_raw_event,
.event = saitek_event,
};
module_hid_driver(saitek_driver);
MODULE_LICENSE("GPL");
|
