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
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
|
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Force feedback support for DragonRise Inc. game controllers
*
* From what I have gathered, these devices are mass produced in China and are
* distributed under several vendors. They often share the same design as
* the original PlayStation DualShock controller.
*
* 0079:0006 "DragonRise Inc. Generic USB Joystick "
* - tested with a Tesun USB-703 game controller.
*
* Copyright (c) 2009 Richard Walmsley <richwalm@gmail.com>
*/
/*
*/
#include <linux/input.h>
#include <linux/slab.h>
#include <linux/hid.h>
#include <linux/module.h>
#include "hid-ids.h"
#ifdef CONFIG_DRAGONRISE_FF
struct drff_device {
struct hid_report *report;
};
static int drff_play(struct input_dev *dev, void *data,
struct ff_effect *effect)
{
struct hid_device *hid = input_get_drvdata(dev);
struct drff_device *drff = data;
int strong, weak;
strong = effect->u.rumble.strong_magnitude;
weak = effect->u.rumble.weak_magnitude;
dbg_hid("called with 0x%04x 0x%04x", strong, weak);
if (strong || weak) {
strong = strong * 0xff / 0xffff;
weak = weak * 0xff / 0xffff;
/* While reverse engineering this device, I found that when
this value is set, it causes the strong rumble to function
at a near maximum speed, so we'll bypass it. */
if (weak == 0x0a)
weak = 0x0b;
drff->report->field[0]->value[0] = 0x51;
drff->report->field[0]->value[1] = 0x00;
drff->report->field[0]->value[2] = weak;
drff->report->field[0]->value[4] = strong;
hid_hw_request(hid, drff->report, HID_REQ_SET_REPORT);
drff->report->field[0]->value[0] = 0xfa;
drff->report->field[0]->value[1] = 0xfe;
} else {
drff->report->field[0]->value[0] = 0xf3;
drff->report->field[0]->value[1] = 0x00;
}
drff->report->field[0]->value[2] = 0x00;
drff->report->field[0]->value[4] = 0x00;
dbg_hid("running with 0x%02x 0x%02x", strong, weak);
hid_hw_request(hid, drff->report, HID_REQ_SET_REPORT);
return 0;
}
static int drff_init(struct hid_device *hid)
{
struct drff_device *drff;
struct hid_report *report;
struct hid_input *hidinput;
struct list_head *report_list =
&hid->report_enum[HID_OUTPUT_REPORT].report_list;
struct input_dev *dev;
int error;
if (list_empty(&hid->inputs)) {
hid_err(hid, "no inputs found\n");
return -ENODEV;
}
hidinput = list_first_entry(&hid->inputs, struct hid_input, list);
dev = hidinput->input;
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);
if (report->maxfield < 1) {
hid_err(hid, "no fields in the report\n");
return -ENODEV;
}
if (report->field[0]->report_count < 7) {
hid_err(hid, "not enough values in the field\n");
return -ENODEV;
}
drff = kzalloc(sizeof(struct drff_device), GFP_KERNEL);
if (!drff)
return -ENOMEM;
set_bit(FF_RUMBLE, dev->ffbit);
error = input_ff_create_memless(dev, drff, drff_play);
if (error) {
kfree(drff);
return error;
}
drff->report = report;
drff->report->field[0]->value[0] = 0xf3;
drff->report->field[0]->value[1] = 0x00;
drff->report->field[0]->value[2] = 0x00;
drff->report->field[0]->value[3] = 0x00;
drff->report->field[0]->value[4] = 0x00;
drff->report->field[0]->value[5] = 0x00;
drff->report->field[0]->value[6] = 0x00;
hid_hw_request(hid, drff->report, HID_REQ_SET_REPORT);
hid_info(hid, "Force Feedback for DragonRise Inc. "
"game controllers by Richard Walmsley <richwalm@gmail.com>\n");
return 0;
}
#else
static inline int drff_init(struct hid_device *hid)
{
return 0;
}
#endif
/*
* The original descriptor of joystick with PID 0x0011, represented by DVTech PC
* JS19. It seems both copied from another device and a result of confusion
* either about the specification or about the program used to create the
* descriptor. In any case, it's a wonder it works on Windows.
*
* Usage Page (Desktop), ; Generic desktop controls (01h)
* Usage (Joystick), ; Joystick (04h, application collection)
* Collection (Application),
* Collection (Logical),
* Report Size (8),
* Report Count (5),
* Logical Minimum (0),
* Logical Maximum (255),
* Physical Minimum (0),
* Physical Maximum (255),
* Usage (X), ; X (30h, dynamic value)
* Usage (X), ; X (30h, dynamic value)
* Usage (X), ; X (30h, dynamic value)
* Usage (X), ; X (30h, dynamic value)
* Usage (Y), ; Y (31h, dynamic value)
* Input (Variable),
* Report Size (4),
* Report Count (1),
* Logical Maximum (7),
* Physical Maximum (315),
* Unit (Degrees),
* Usage (00h),
* Input (Variable, Null State),
* Unit,
* Report Size (1),
* Report Count (10),
* Logical Maximum (1),
* Physical Maximum (1),
* Usage Page (Button), ; Button (09h)
* Usage Minimum (01h),
* Usage Maximum (0Ah),
* Input (Variable),
* Usage Page (FF00h), ; FF00h, vendor-defined
* Report Size (1),
* Report Count (10),
* Logical Maximum (1),
* Physical Maximum (1),
* Usage (01h),
* Input (Variable),
* End Collection,
* Collection (Logical),
* Report Size (8),
* Report Count (4),
* Physical Maximum (255),
* Logical Maximum (255),
* Usage (02h),
* Output (Variable),
* End Collection,
* End Collection
*/
/* Size of the original descriptor of the PID 0x0011 joystick */
#define PID0011_RDESC_ORIG_SIZE 101
/* Fixed report descriptor for PID 0x011 joystick */
static const __u8 pid0011_rdesc_fixed[] = {
0x05, 0x01, /* Usage Page (Desktop), */
0x09, 0x04, /* Usage (Joystick), */
0xA1, 0x01, /* Collection (Application), */
0xA1, 0x02, /* Collection (Logical), */
0x14, /* Logical Minimum (0), */
0x75, 0x08, /* Report Size (8), */
0x95, 0x03, /* Report Count (3), */
0x81, 0x01, /* Input (Constant), */
0x26, 0xFF, 0x00, /* Logical Maximum (255), */
0x95, 0x02, /* Report Count (2), */
0x09, 0x30, /* Usage (X), */
0x09, 0x31, /* Usage (Y), */
0x81, 0x02, /* Input (Variable), */
0x75, 0x01, /* Report Size (1), */
0x95, 0x04, /* Report Count (4), */
0x81, 0x01, /* Input (Constant), */
0x25, 0x01, /* Logical Maximum (1), */
0x95, 0x0A, /* Report Count (10), */
0x05, 0x09, /* Usage Page (Button), */
0x19, 0x01, /* Usage Minimum (01h), */
0x29, 0x0A, /* Usage Maximum (0Ah), */
0x81, 0x02, /* Input (Variable), */
0x95, 0x0A, /* Report Count (10), */
0x81, 0x01, /* Input (Constant), */
0xC0, /* End Collection, */
0xC0 /* End Collection */
};
static const __u8 *dr_report_fixup(struct hid_device *hdev, __u8 *rdesc,
unsigned int *rsize)
{
switch (hdev->product) {
case 0x0011:
if (*rsize == PID0011_RDESC_ORIG_SIZE) {
*rsize = sizeof(pid0011_rdesc_fixed);
return pid0011_rdesc_fixed;
}
break;
}
return rdesc;
}
#define map_abs(c) hid_map_usage(hi, usage, bit, max, EV_ABS, (c))
#define map_rel(c) hid_map_usage(hi, usage, bit, max, EV_REL, (c))
static int dr_input_mapping(struct hid_device *hdev, struct hid_input *hi,
struct hid_field *field, struct hid_usage *usage,
unsigned long **bit, int *max)
{
switch (usage->hid) {
/*
* revert to the old hid-input behavior where axes
* can be randomly assigned when hid->usage is reused.
*/
case HID_GD_X: case HID_GD_Y: case HID_GD_Z:
case HID_GD_RX: case HID_GD_RY: case HID_GD_RZ:
if (field->flags & HID_MAIN_ITEM_RELATIVE)
map_rel(usage->hid & 0xf);
else
map_abs(usage->hid & 0xf);
return 1;
}
return 0;
}
static int dr_probe(struct hid_device *hdev, const struct hid_device_id *id)
{
int ret;
dev_dbg(&hdev->dev, "DragonRise Inc. 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;
}
switch (hdev->product) {
case 0x0006:
ret = drff_init(hdev);
if (ret) {
dev_err(&hdev->dev, "force feedback init failed\n");
hid_hw_stop(hdev);
goto err;
}
break;
}
return 0;
err:
return ret;
}
static const struct hid_device_id dr_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, 0x0006), },
{ HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, 0x0011), },
{ }
};
MODULE_DEVICE_TABLE(hid, dr_devices);
static struct hid_driver dr_driver = {
.name = "dragonrise",
.id_table = dr_devices,
.report_fixup = dr_report_fixup,
.probe = dr_probe,
.input_mapping = dr_input_mapping,
};
module_hid_driver(dr_driver);
MODULE_DESCRIPTION("Force feedback support for DragonRise Inc. game controllers");
MODULE_LICENSE("GPL");
|
