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3f866fbd RW |
1 | /* |
2 | * Force feedback support for DragonRise Inc. game controllers | |
3 | * | |
4 | * From what I have gathered, these devices are mass produced in China and are | |
5 | * distributed under several vendors. They often share the same design as | |
6 | * the original PlayStation DualShock controller. | |
7 | * | |
8 | * 0079:0006 "DragonRise Inc. Generic USB Joystick " | |
9 | * - tested with a Tesun USB-703 game controller. | |
10 | * | |
11 | * Copyright (c) 2009 Richard Walmsley <richwalm@gmail.com> | |
12 | */ | |
13 | ||
14 | /* | |
15 | * This program is free software; you can redistribute it and/or modify | |
16 | * it under the terms of the GNU General Public License as published by | |
17 | * the Free Software Foundation; either version 2 of the License, or | |
18 | * (at your option) any later version. | |
19 | * | |
20 | * This program is distributed in the hope that it will be useful, | |
21 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
22 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
23 | * GNU General Public License for more details. | |
24 | * | |
25 | * You should have received a copy of the GNU General Public License | |
26 | * along with this program; if not, write to the Free Software | |
27 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
28 | */ | |
29 | ||
30 | #include <linux/input.h> | |
5a0e3ad6 | 31 | #include <linux/slab.h> |
3f866fbd RW |
32 | #include <linux/usb.h> |
33 | #include <linux/hid.h> | |
34 | ||
35 | #include "hid-ids.h" | |
0f6f4319 JK |
36 | |
37 | #ifdef CONFIG_DRAGONRISE_FF | |
3f866fbd RW |
38 | #include "usbhid/usbhid.h" |
39 | ||
40 | struct drff_device { | |
41 | struct hid_report *report; | |
42 | }; | |
43 | ||
44 | static int drff_play(struct input_dev *dev, void *data, | |
45 | struct ff_effect *effect) | |
46 | { | |
47 | struct hid_device *hid = input_get_drvdata(dev); | |
48 | struct drff_device *drff = data; | |
49 | int strong, weak; | |
50 | ||
51 | strong = effect->u.rumble.strong_magnitude; | |
52 | weak = effect->u.rumble.weak_magnitude; | |
53 | ||
54 | dbg_hid("called with 0x%04x 0x%04x", strong, weak); | |
55 | ||
56 | if (strong || weak) { | |
57 | strong = strong * 0xff / 0xffff; | |
58 | weak = weak * 0xff / 0xffff; | |
59 | ||
60 | /* While reverse engineering this device, I found that when | |
61 | this value is set, it causes the strong rumble to function | |
62 | at a near maximum speed, so we'll bypass it. */ | |
63 | if (weak == 0x0a) | |
64 | weak = 0x0b; | |
65 | ||
66 | drff->report->field[0]->value[0] = 0x51; | |
67 | drff->report->field[0]->value[1] = 0x00; | |
68 | drff->report->field[0]->value[2] = weak; | |
69 | drff->report->field[0]->value[4] = strong; | |
70 | usbhid_submit_report(hid, drff->report, USB_DIR_OUT); | |
71 | ||
72 | drff->report->field[0]->value[0] = 0xfa; | |
73 | drff->report->field[0]->value[1] = 0xfe; | |
74 | } else { | |
75 | drff->report->field[0]->value[0] = 0xf3; | |
76 | drff->report->field[0]->value[1] = 0x00; | |
77 | } | |
78 | ||
79 | drff->report->field[0]->value[2] = 0x00; | |
80 | drff->report->field[0]->value[4] = 0x00; | |
81 | dbg_hid("running with 0x%02x 0x%02x", strong, weak); | |
82 | usbhid_submit_report(hid, drff->report, USB_DIR_OUT); | |
83 | ||
84 | return 0; | |
85 | } | |
86 | ||
87 | static int drff_init(struct hid_device *hid) | |
88 | { | |
89 | struct drff_device *drff; | |
90 | struct hid_report *report; | |
91 | struct hid_input *hidinput = list_first_entry(&hid->inputs, | |
92 | struct hid_input, list); | |
93 | struct list_head *report_list = | |
94 | &hid->report_enum[HID_OUTPUT_REPORT].report_list; | |
95 | struct input_dev *dev = hidinput->input; | |
96 | int error; | |
97 | ||
98 | if (list_empty(report_list)) { | |
4291ee30 | 99 | hid_err(hid, "no output reports found\n"); |
3f866fbd RW |
100 | return -ENODEV; |
101 | } | |
102 | ||
103 | report = list_first_entry(report_list, struct hid_report, list); | |
104 | if (report->maxfield < 1) { | |
4291ee30 | 105 | hid_err(hid, "no fields in the report\n"); |
3f866fbd RW |
106 | return -ENODEV; |
107 | } | |
108 | ||
109 | if (report->field[0]->report_count < 7) { | |
4291ee30 | 110 | hid_err(hid, "not enough values in the field\n"); |
3f866fbd RW |
111 | return -ENODEV; |
112 | } | |
113 | ||
114 | drff = kzalloc(sizeof(struct drff_device), GFP_KERNEL); | |
115 | if (!drff) | |
116 | return -ENOMEM; | |
117 | ||
118 | set_bit(FF_RUMBLE, dev->ffbit); | |
119 | ||
120 | error = input_ff_create_memless(dev, drff, drff_play); | |
121 | if (error) { | |
122 | kfree(drff); | |
123 | return error; | |
124 | } | |
125 | ||
126 | drff->report = report; | |
127 | drff->report->field[0]->value[0] = 0xf3; | |
128 | drff->report->field[0]->value[1] = 0x00; | |
129 | drff->report->field[0]->value[2] = 0x00; | |
130 | drff->report->field[0]->value[3] = 0x00; | |
131 | drff->report->field[0]->value[4] = 0x00; | |
132 | drff->report->field[0]->value[5] = 0x00; | |
133 | drff->report->field[0]->value[6] = 0x00; | |
134 | usbhid_submit_report(hid, drff->report, USB_DIR_OUT); | |
135 | ||
4291ee30 JP |
136 | hid_info(hid, "Force Feedback for DragonRise Inc. " |
137 | "game controllers by Richard Walmsley <richwalm@gmail.com>\n"); | |
3f866fbd RW |
138 | |
139 | return 0; | |
140 | } | |
0f6f4319 JK |
141 | #else |
142 | static inline int drff_init(struct hid_device *hid) | |
143 | { | |
144 | return 0; | |
145 | } | |
146 | #endif | |
3f866fbd | 147 | |
e05eefb9 NK |
148 | /* |
149 | * The original descriptor of joystick with PID 0x0011, represented by DVTech PC | |
150 | * JS19. It seems both copied from another device and a result of confusion | |
151 | * either about the specification or about the program used to create the | |
152 | * descriptor. In any case, it's a wonder it works on Windows. | |
153 | * | |
154 | * Usage Page (Desktop), ; Generic desktop controls (01h) | |
155 | * Usage (Joystik), ; Joystik (04h, application collection) | |
156 | * Collection (Application), | |
157 | * Collection (Logical), | |
158 | * Report Size (8), | |
159 | * Report Count (5), | |
160 | * Logical Minimum (0), | |
161 | * Logical Maximum (255), | |
162 | * Physical Minimum (0), | |
163 | * Physical Maximum (255), | |
164 | * Usage (X), ; X (30h, dynamic value) | |
165 | * Usage (X), ; X (30h, dynamic value) | |
166 | * Usage (X), ; X (30h, dynamic value) | |
167 | * Usage (X), ; X (30h, dynamic value) | |
168 | * Usage (Y), ; Y (31h, dynamic value) | |
169 | * Input (Variable), | |
170 | * Report Size (4), | |
171 | * Report Count (1), | |
172 | * Logical Maximum (7), | |
173 | * Physical Maximum (315), | |
174 | * Unit (Degrees), | |
175 | * Usage (00h), | |
176 | * Input (Variable, Null State), | |
177 | * Unit, | |
178 | * Report Size (1), | |
179 | * Report Count (10), | |
180 | * Logical Maximum (1), | |
181 | * Physical Maximum (1), | |
182 | * Usage Page (Button), ; Button (09h) | |
183 | * Usage Minimum (01h), | |
184 | * Usage Maximum (0Ah), | |
185 | * Input (Variable), | |
186 | * Usage Page (FF00h), ; FF00h, vendor-defined | |
187 | * Report Size (1), | |
188 | * Report Count (10), | |
189 | * Logical Maximum (1), | |
190 | * Physical Maximum (1), | |
191 | * Usage (01h), | |
192 | * Input (Variable), | |
193 | * End Collection, | |
194 | * Collection (Logical), | |
195 | * Report Size (8), | |
196 | * Report Count (4), | |
197 | * Physical Maximum (255), | |
198 | * Logical Maximum (255), | |
199 | * Usage (02h), | |
200 | * Output (Variable), | |
201 | * End Collection, | |
202 | * End Collection | |
203 | */ | |
204 | ||
205 | /* Size of the original descriptor of the PID 0x0011 joystick */ | |
206 | #define PID0011_RDESC_ORIG_SIZE 101 | |
207 | ||
208 | /* Fixed report descriptor for PID 0x011 joystick */ | |
209 | static __u8 pid0011_rdesc_fixed[] = { | |
210 | 0x05, 0x01, /* Usage Page (Desktop), */ | |
211 | 0x09, 0x04, /* Usage (Joystik), */ | |
212 | 0xA1, 0x01, /* Collection (Application), */ | |
213 | 0xA1, 0x02, /* Collection (Logical), */ | |
214 | 0x14, /* Logical Minimum (0), */ | |
215 | 0x75, 0x08, /* Report Size (8), */ | |
216 | 0x95, 0x03, /* Report Count (3), */ | |
217 | 0x81, 0x01, /* Input (Constant), */ | |
218 | 0x26, 0xFF, 0x00, /* Logical Maximum (255), */ | |
219 | 0x95, 0x02, /* Report Count (2), */ | |
220 | 0x09, 0x30, /* Usage (X), */ | |
221 | 0x09, 0x31, /* Usage (Y), */ | |
222 | 0x81, 0x02, /* Input (Variable), */ | |
223 | 0x75, 0x01, /* Report Size (1), */ | |
224 | 0x95, 0x04, /* Report Count (4), */ | |
225 | 0x81, 0x01, /* Input (Constant), */ | |
226 | 0x25, 0x01, /* Logical Maximum (1), */ | |
227 | 0x95, 0x0A, /* Report Count (10), */ | |
228 | 0x05, 0x09, /* Usage Page (Button), */ | |
229 | 0x19, 0x01, /* Usage Minimum (01h), */ | |
230 | 0x29, 0x0A, /* Usage Maximum (0Ah), */ | |
231 | 0x81, 0x02, /* Input (Variable), */ | |
232 | 0x95, 0x0A, /* Report Count (10), */ | |
233 | 0x81, 0x01, /* Input (Constant), */ | |
234 | 0xC0, /* End Collection, */ | |
235 | 0xC0 /* End Collection */ | |
236 | }; | |
237 | ||
238 | static __u8 *dr_report_fixup(struct hid_device *hdev, __u8 *rdesc, | |
239 | unsigned int *rsize) | |
240 | { | |
241 | switch (hdev->product) { | |
242 | case 0x0011: | |
243 | if (*rsize == PID0011_RDESC_ORIG_SIZE) { | |
244 | rdesc = pid0011_rdesc_fixed; | |
245 | *rsize = sizeof(pid0011_rdesc_fixed); | |
246 | } | |
247 | break; | |
248 | } | |
249 | return rdesc; | |
250 | } | |
251 | ||
3f866fbd RW |
252 | static int dr_probe(struct hid_device *hdev, const struct hid_device_id *id) |
253 | { | |
254 | int ret; | |
255 | ||
256 | dev_dbg(&hdev->dev, "DragonRise Inc. HID hardware probe..."); | |
257 | ||
258 | ret = hid_parse(hdev); | |
259 | if (ret) { | |
4291ee30 | 260 | hid_err(hdev, "parse failed\n"); |
3f866fbd RW |
261 | goto err; |
262 | } | |
263 | ||
264 | ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT & ~HID_CONNECT_FF); | |
265 | if (ret) { | |
4291ee30 | 266 | hid_err(hdev, "hw start failed\n"); |
3f866fbd RW |
267 | goto err; |
268 | } | |
269 | ||
e05eefb9 NK |
270 | switch (hdev->product) { |
271 | case 0x0006: | |
272 | ret = drff_init(hdev); | |
273 | if (ret) { | |
274 | dev_err(&hdev->dev, "force feedback init failed\n"); | |
275 | hid_hw_stop(hdev); | |
276 | goto err; | |
277 | } | |
278 | break; | |
279 | } | |
3f866fbd RW |
280 | |
281 | return 0; | |
282 | err: | |
283 | return ret; | |
284 | } | |
285 | ||
286 | static const struct hid_device_id dr_devices[] = { | |
287 | { HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, 0x0006), }, | |
e05eefb9 | 288 | { HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, 0x0011), }, |
3f866fbd RW |
289 | { } |
290 | }; | |
291 | MODULE_DEVICE_TABLE(hid, dr_devices); | |
292 | ||
293 | static struct hid_driver dr_driver = { | |
294 | .name = "dragonrise", | |
295 | .id_table = dr_devices, | |
e05eefb9 | 296 | .report_fixup = dr_report_fixup, |
3f866fbd RW |
297 | .probe = dr_probe, |
298 | }; | |
299 | ||
300 | static int __init dr_init(void) | |
301 | { | |
302 | return hid_register_driver(&dr_driver); | |
303 | } | |
304 | ||
305 | static void __exit dr_exit(void) | |
306 | { | |
307 | hid_unregister_driver(&dr_driver); | |
308 | } | |
309 | ||
310 | module_init(dr_init); | |
311 | module_exit(dr_exit); | |
312 | MODULE_LICENSE("GPL"); |