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1a59d1b8 | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
3f866fbd RW |
2 | /* |
3 | * Force feedback support for DragonRise Inc. game controllers | |
4 | * | |
5 | * From what I have gathered, these devices are mass produced in China and are | |
6 | * distributed under several vendors. They often share the same design as | |
7 | * the original PlayStation DualShock controller. | |
8 | * | |
9 | * 0079:0006 "DragonRise Inc. Generic USB Joystick " | |
10 | * - tested with a Tesun USB-703 game controller. | |
11 | * | |
12 | * Copyright (c) 2009 Richard Walmsley <richwalm@gmail.com> | |
13 | */ | |
14 | ||
15 | /* | |
3f866fbd RW |
16 | */ |
17 | ||
18 | #include <linux/input.h> | |
5a0e3ad6 | 19 | #include <linux/slab.h> |
3f866fbd | 20 | #include <linux/hid.h> |
8f86a2c3 | 21 | #include <linux/module.h> |
3f866fbd RW |
22 | |
23 | #include "hid-ids.h" | |
0f6f4319 JK |
24 | |
25 | #ifdef CONFIG_DRAGONRISE_FF | |
3f866fbd RW |
26 | |
27 | struct drff_device { | |
28 | struct hid_report *report; | |
29 | }; | |
30 | ||
31 | static int drff_play(struct input_dev *dev, void *data, | |
32 | struct ff_effect *effect) | |
33 | { | |
34 | struct hid_device *hid = input_get_drvdata(dev); | |
35 | struct drff_device *drff = data; | |
36 | int strong, weak; | |
37 | ||
38 | strong = effect->u.rumble.strong_magnitude; | |
39 | weak = effect->u.rumble.weak_magnitude; | |
40 | ||
41 | dbg_hid("called with 0x%04x 0x%04x", strong, weak); | |
42 | ||
43 | if (strong || weak) { | |
44 | strong = strong * 0xff / 0xffff; | |
45 | weak = weak * 0xff / 0xffff; | |
46 | ||
47 | /* While reverse engineering this device, I found that when | |
48 | this value is set, it causes the strong rumble to function | |
49 | at a near maximum speed, so we'll bypass it. */ | |
50 | if (weak == 0x0a) | |
51 | weak = 0x0b; | |
52 | ||
53 | drff->report->field[0]->value[0] = 0x51; | |
54 | drff->report->field[0]->value[1] = 0x00; | |
55 | drff->report->field[0]->value[2] = weak; | |
56 | drff->report->field[0]->value[4] = strong; | |
d8814272 | 57 | hid_hw_request(hid, drff->report, HID_REQ_SET_REPORT); |
3f866fbd RW |
58 | |
59 | drff->report->field[0]->value[0] = 0xfa; | |
60 | drff->report->field[0]->value[1] = 0xfe; | |
61 | } else { | |
62 | drff->report->field[0]->value[0] = 0xf3; | |
63 | drff->report->field[0]->value[1] = 0x00; | |
64 | } | |
65 | ||
66 | drff->report->field[0]->value[2] = 0x00; | |
67 | drff->report->field[0]->value[4] = 0x00; | |
68 | dbg_hid("running with 0x%02x 0x%02x", strong, weak); | |
d8814272 | 69 | hid_hw_request(hid, drff->report, HID_REQ_SET_REPORT); |
3f866fbd RW |
70 | |
71 | return 0; | |
72 | } | |
73 | ||
74 | static int drff_init(struct hid_device *hid) | |
75 | { | |
76 | struct drff_device *drff; | |
77 | struct hid_report *report; | |
78 | struct hid_input *hidinput = list_first_entry(&hid->inputs, | |
79 | struct hid_input, list); | |
80 | struct list_head *report_list = | |
81 | &hid->report_enum[HID_OUTPUT_REPORT].report_list; | |
82 | struct input_dev *dev = hidinput->input; | |
83 | int error; | |
84 | ||
85 | if (list_empty(report_list)) { | |
4291ee30 | 86 | hid_err(hid, "no output reports found\n"); |
3f866fbd RW |
87 | return -ENODEV; |
88 | } | |
89 | ||
90 | report = list_first_entry(report_list, struct hid_report, list); | |
91 | if (report->maxfield < 1) { | |
4291ee30 | 92 | hid_err(hid, "no fields in the report\n"); |
3f866fbd RW |
93 | return -ENODEV; |
94 | } | |
95 | ||
96 | if (report->field[0]->report_count < 7) { | |
4291ee30 | 97 | hid_err(hid, "not enough values in the field\n"); |
3f866fbd RW |
98 | return -ENODEV; |
99 | } | |
100 | ||
101 | drff = kzalloc(sizeof(struct drff_device), GFP_KERNEL); | |
102 | if (!drff) | |
103 | return -ENOMEM; | |
104 | ||
105 | set_bit(FF_RUMBLE, dev->ffbit); | |
106 | ||
107 | error = input_ff_create_memless(dev, drff, drff_play); | |
108 | if (error) { | |
109 | kfree(drff); | |
110 | return error; | |
111 | } | |
112 | ||
113 | drff->report = report; | |
114 | drff->report->field[0]->value[0] = 0xf3; | |
115 | drff->report->field[0]->value[1] = 0x00; | |
116 | drff->report->field[0]->value[2] = 0x00; | |
117 | drff->report->field[0]->value[3] = 0x00; | |
118 | drff->report->field[0]->value[4] = 0x00; | |
119 | drff->report->field[0]->value[5] = 0x00; | |
120 | drff->report->field[0]->value[6] = 0x00; | |
d8814272 | 121 | hid_hw_request(hid, drff->report, HID_REQ_SET_REPORT); |
3f866fbd | 122 | |
4291ee30 JP |
123 | hid_info(hid, "Force Feedback for DragonRise Inc. " |
124 | "game controllers by Richard Walmsley <richwalm@gmail.com>\n"); | |
3f866fbd RW |
125 | |
126 | return 0; | |
127 | } | |
0f6f4319 JK |
128 | #else |
129 | static inline int drff_init(struct hid_device *hid) | |
130 | { | |
131 | return 0; | |
132 | } | |
133 | #endif | |
3f866fbd | 134 | |
e05eefb9 NK |
135 | /* |
136 | * The original descriptor of joystick with PID 0x0011, represented by DVTech PC | |
137 | * JS19. It seems both copied from another device and a result of confusion | |
138 | * either about the specification or about the program used to create the | |
139 | * descriptor. In any case, it's a wonder it works on Windows. | |
140 | * | |
141 | * Usage Page (Desktop), ; Generic desktop controls (01h) | |
313726ca | 142 | * Usage (Joystick), ; Joystick (04h, application collection) |
e05eefb9 NK |
143 | * Collection (Application), |
144 | * Collection (Logical), | |
145 | * Report Size (8), | |
146 | * Report Count (5), | |
147 | * Logical Minimum (0), | |
148 | * Logical Maximum (255), | |
149 | * Physical Minimum (0), | |
150 | * Physical Maximum (255), | |
151 | * Usage (X), ; X (30h, dynamic value) | |
152 | * Usage (X), ; X (30h, dynamic value) | |
153 | * Usage (X), ; X (30h, dynamic value) | |
154 | * Usage (X), ; X (30h, dynamic value) | |
155 | * Usage (Y), ; Y (31h, dynamic value) | |
156 | * Input (Variable), | |
157 | * Report Size (4), | |
158 | * Report Count (1), | |
159 | * Logical Maximum (7), | |
160 | * Physical Maximum (315), | |
161 | * Unit (Degrees), | |
162 | * Usage (00h), | |
163 | * Input (Variable, Null State), | |
164 | * Unit, | |
165 | * Report Size (1), | |
166 | * Report Count (10), | |
167 | * Logical Maximum (1), | |
168 | * Physical Maximum (1), | |
169 | * Usage Page (Button), ; Button (09h) | |
170 | * Usage Minimum (01h), | |
171 | * Usage Maximum (0Ah), | |
172 | * Input (Variable), | |
173 | * Usage Page (FF00h), ; FF00h, vendor-defined | |
174 | * Report Size (1), | |
175 | * Report Count (10), | |
176 | * Logical Maximum (1), | |
177 | * Physical Maximum (1), | |
178 | * Usage (01h), | |
179 | * Input (Variable), | |
180 | * End Collection, | |
181 | * Collection (Logical), | |
182 | * Report Size (8), | |
183 | * Report Count (4), | |
184 | * Physical Maximum (255), | |
185 | * Logical Maximum (255), | |
186 | * Usage (02h), | |
187 | * Output (Variable), | |
188 | * End Collection, | |
189 | * End Collection | |
190 | */ | |
191 | ||
192 | /* Size of the original descriptor of the PID 0x0011 joystick */ | |
193 | #define PID0011_RDESC_ORIG_SIZE 101 | |
194 | ||
195 | /* Fixed report descriptor for PID 0x011 joystick */ | |
196 | static __u8 pid0011_rdesc_fixed[] = { | |
197 | 0x05, 0x01, /* Usage Page (Desktop), */ | |
313726ca | 198 | 0x09, 0x04, /* Usage (Joystick), */ |
e05eefb9 NK |
199 | 0xA1, 0x01, /* Collection (Application), */ |
200 | 0xA1, 0x02, /* Collection (Logical), */ | |
201 | 0x14, /* Logical Minimum (0), */ | |
202 | 0x75, 0x08, /* Report Size (8), */ | |
203 | 0x95, 0x03, /* Report Count (3), */ | |
204 | 0x81, 0x01, /* Input (Constant), */ | |
205 | 0x26, 0xFF, 0x00, /* Logical Maximum (255), */ | |
206 | 0x95, 0x02, /* Report Count (2), */ | |
207 | 0x09, 0x30, /* Usage (X), */ | |
208 | 0x09, 0x31, /* Usage (Y), */ | |
209 | 0x81, 0x02, /* Input (Variable), */ | |
210 | 0x75, 0x01, /* Report Size (1), */ | |
211 | 0x95, 0x04, /* Report Count (4), */ | |
212 | 0x81, 0x01, /* Input (Constant), */ | |
213 | 0x25, 0x01, /* Logical Maximum (1), */ | |
214 | 0x95, 0x0A, /* Report Count (10), */ | |
215 | 0x05, 0x09, /* Usage Page (Button), */ | |
216 | 0x19, 0x01, /* Usage Minimum (01h), */ | |
217 | 0x29, 0x0A, /* Usage Maximum (0Ah), */ | |
218 | 0x81, 0x02, /* Input (Variable), */ | |
219 | 0x95, 0x0A, /* Report Count (10), */ | |
220 | 0x81, 0x01, /* Input (Constant), */ | |
221 | 0xC0, /* End Collection, */ | |
222 | 0xC0 /* End Collection */ | |
223 | }; | |
224 | ||
225 | static __u8 *dr_report_fixup(struct hid_device *hdev, __u8 *rdesc, | |
226 | unsigned int *rsize) | |
227 | { | |
228 | switch (hdev->product) { | |
229 | case 0x0011: | |
230 | if (*rsize == PID0011_RDESC_ORIG_SIZE) { | |
231 | rdesc = pid0011_rdesc_fixed; | |
232 | *rsize = sizeof(pid0011_rdesc_fixed); | |
233 | } | |
234 | break; | |
235 | } | |
236 | return rdesc; | |
237 | } | |
238 | ||
e1594409 IAR |
239 | #define map_abs(c) hid_map_usage(hi, usage, bit, max, EV_ABS, (c)) |
240 | #define map_rel(c) hid_map_usage(hi, usage, bit, max, EV_REL, (c)) | |
241 | ||
242 | static int dr_input_mapping(struct hid_device *hdev, struct hid_input *hi, | |
243 | struct hid_field *field, struct hid_usage *usage, | |
244 | unsigned long **bit, int *max) | |
245 | { | |
246 | switch (usage->hid) { | |
247 | /* | |
248 | * revert to the old hid-input behavior where axes | |
249 | * can be randomly assigned when hid->usage is reused. | |
250 | */ | |
251 | case HID_GD_X: case HID_GD_Y: case HID_GD_Z: | |
252 | case HID_GD_RX: case HID_GD_RY: case HID_GD_RZ: | |
253 | if (field->flags & HID_MAIN_ITEM_RELATIVE) | |
254 | map_rel(usage->hid & 0xf); | |
255 | else | |
256 | map_abs(usage->hid & 0xf); | |
257 | return 1; | |
258 | } | |
259 | ||
260 | return 0; | |
261 | } | |
262 | ||
3f866fbd RW |
263 | static int dr_probe(struct hid_device *hdev, const struct hid_device_id *id) |
264 | { | |
265 | int ret; | |
266 | ||
267 | dev_dbg(&hdev->dev, "DragonRise Inc. HID hardware probe..."); | |
268 | ||
269 | ret = hid_parse(hdev); | |
270 | if (ret) { | |
4291ee30 | 271 | hid_err(hdev, "parse failed\n"); |
3f866fbd RW |
272 | goto err; |
273 | } | |
274 | ||
275 | ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT & ~HID_CONNECT_FF); | |
276 | if (ret) { | |
4291ee30 | 277 | hid_err(hdev, "hw start failed\n"); |
3f866fbd RW |
278 | goto err; |
279 | } | |
280 | ||
e05eefb9 NK |
281 | switch (hdev->product) { |
282 | case 0x0006: | |
283 | ret = drff_init(hdev); | |
284 | if (ret) { | |
285 | dev_err(&hdev->dev, "force feedback init failed\n"); | |
286 | hid_hw_stop(hdev); | |
287 | goto err; | |
288 | } | |
289 | break; | |
290 | } | |
3f866fbd RW |
291 | |
292 | return 0; | |
293 | err: | |
294 | return ret; | |
295 | } | |
296 | ||
297 | static const struct hid_device_id dr_devices[] = { | |
298 | { HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, 0x0006), }, | |
e05eefb9 | 299 | { HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, 0x0011), }, |
3f866fbd RW |
300 | { } |
301 | }; | |
302 | MODULE_DEVICE_TABLE(hid, dr_devices); | |
303 | ||
304 | static struct hid_driver dr_driver = { | |
305 | .name = "dragonrise", | |
306 | .id_table = dr_devices, | |
e05eefb9 | 307 | .report_fixup = dr_report_fixup, |
3f866fbd | 308 | .probe = dr_probe, |
e1594409 | 309 | .input_mapping = dr_input_mapping, |
3f866fbd | 310 | }; |
f425458e | 311 | module_hid_driver(dr_driver); |
3f866fbd | 312 | |
3f866fbd | 313 | MODULE_LICENSE("GPL"); |