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> 31 #include <linux/slab.h> 32 #include <linux/hid.h> 33 #include <linux/module.h> 34 35 #include "hid-ids.h" 36 37 #ifdef CONFIG_DRAGONRISE_FF 38 39 struct drff_device { 40 struct hid_report *report; 41 }; 42 43 static int drff_play(struct input_dev *dev, void *data, 44 struct ff_effect *effect) 45 { 46 struct hid_device *hid = input_get_drvdata(dev); 47 struct drff_device *drff = data; 48 int strong, weak; 49 50 strong = effect->u.rumble.strong_magnitude; 51 weak = effect->u.rumble.weak_magnitude; 52 53 dbg_hid("called with 0x%04x 0x%04x", strong, weak); 54 55 if (strong || weak) { 56 strong = strong * 0xff / 0xffff; 57 weak = weak * 0xff / 0xffff; 58 59 /* While reverse engineering this device, I found that when 60 this value is set, it causes the strong rumble to function 61 at a near maximum speed, so we'll bypass it. */ 62 if (weak == 0x0a) 63 weak = 0x0b; 64 65 drff->report->field[0]->value[0] = 0x51; 66 drff->report->field[0]->value[1] = 0x00; 67 drff->report->field[0]->value[2] = weak; 68 drff->report->field[0]->value[4] = strong; 69 hid_hw_request(hid, drff->report, HID_REQ_SET_REPORT); 70 71 drff->report->field[0]->value[0] = 0xfa; 72 drff->report->field[0]->value[1] = 0xfe; 73 } else { 74 drff->report->field[0]->value[0] = 0xf3; 75 drff->report->field[0]->value[1] = 0x00; 76 } 77 78 drff->report->field[0]->value[2] = 0x00; 79 drff->report->field[0]->value[4] = 0x00; 80 dbg_hid("running with 0x%02x 0x%02x", strong, weak); 81 hid_hw_request(hid, drff->report, HID_REQ_SET_REPORT); 82 83 return 0; 84 } 85 86 static int drff_init(struct hid_device *hid) 87 { 88 struct drff_device *drff; 89 struct hid_report *report; 90 struct hid_input *hidinput = list_first_entry(&hid->inputs, 91 struct hid_input, list); 92 struct list_head *report_list = 93 &hid->report_enum[HID_OUTPUT_REPORT].report_list; 94 struct input_dev *dev = hidinput->input; 95 int error; 96 97 if (list_empty(report_list)) { 98 hid_err(hid, "no output reports found\n"); 99 return -ENODEV; 100 } 101 102 report = list_first_entry(report_list, struct hid_report, list); 103 if (report->maxfield < 1) { 104 hid_err(hid, "no fields in the report\n"); 105 return -ENODEV; 106 } 107 108 if (report->field[0]->report_count < 7) { 109 hid_err(hid, "not enough values in the field\n"); 110 return -ENODEV; 111 } 112 113 drff = kzalloc(sizeof(struct drff_device), GFP_KERNEL); 114 if (!drff) 115 return -ENOMEM; 116 117 set_bit(FF_RUMBLE, dev->ffbit); 118 119 error = input_ff_create_memless(dev, drff, drff_play); 120 if (error) { 121 kfree(drff); 122 return error; 123 } 124 125 drff->report = report; 126 drff->report->field[0]->value[0] = 0xf3; 127 drff->report->field[0]->value[1] = 0x00; 128 drff->report->field[0]->value[2] = 0x00; 129 drff->report->field[0]->value[3] = 0x00; 130 drff->report->field[0]->value[4] = 0x00; 131 drff->report->field[0]->value[5] = 0x00; 132 drff->report->field[0]->value[6] = 0x00; 133 hid_hw_request(hid, drff->report, HID_REQ_SET_REPORT); 134 135 hid_info(hid, "Force Feedback for DragonRise Inc. " 136 "game controllers by Richard Walmsley <richwalm@gmail.com>\n"); 137 138 return 0; 139 } 140 #else 141 static inline int drff_init(struct hid_device *hid) 142 { 143 return 0; 144 } 145 #endif 146 147 /* 148 * The original descriptor of joystick with PID 0x0011, represented by DVTech PC 149 * JS19. It seems both copied from another device and a result of confusion 150 * either about the specification or about the program used to create the 151 * descriptor. In any case, it's a wonder it works on Windows. 152 * 153 * Usage Page (Desktop), ; Generic desktop controls (01h) 154 * Usage (Joystick), ; Joystick (04h, application collection) 155 * Collection (Application), 156 * Collection (Logical), 157 * Report Size (8), 158 * Report Count (5), 159 * Logical Minimum (0), 160 * Logical Maximum (255), 161 * Physical Minimum (0), 162 * Physical Maximum (255), 163 * Usage (X), ; X (30h, dynamic value) 164 * Usage (X), ; X (30h, dynamic value) 165 * Usage (X), ; X (30h, dynamic value) 166 * Usage (X), ; X (30h, dynamic value) 167 * Usage (Y), ; Y (31h, dynamic value) 168 * Input (Variable), 169 * Report Size (4), 170 * Report Count (1), 171 * Logical Maximum (7), 172 * Physical Maximum (315), 173 * Unit (Degrees), 174 * Usage (00h), 175 * Input (Variable, Null State), 176 * Unit, 177 * Report Size (1), 178 * Report Count (10), 179 * Logical Maximum (1), 180 * Physical Maximum (1), 181 * Usage Page (Button), ; Button (09h) 182 * Usage Minimum (01h), 183 * Usage Maximum (0Ah), 184 * Input (Variable), 185 * Usage Page (FF00h), ; FF00h, vendor-defined 186 * Report Size (1), 187 * Report Count (10), 188 * Logical Maximum (1), 189 * Physical Maximum (1), 190 * Usage (01h), 191 * Input (Variable), 192 * End Collection, 193 * Collection (Logical), 194 * Report Size (8), 195 * Report Count (4), 196 * Physical Maximum (255), 197 * Logical Maximum (255), 198 * Usage (02h), 199 * Output (Variable), 200 * End Collection, 201 * End Collection 202 */ 203 204 /* Size of the original descriptor of the PID 0x0011 joystick */ 205 #define PID0011_RDESC_ORIG_SIZE 101 206 207 /* Fixed report descriptor for PID 0x011 joystick */ 208 static __u8 pid0011_rdesc_fixed[] = { 209 0x05, 0x01, /* Usage Page (Desktop), */ 210 0x09, 0x04, /* Usage (Joystick), */ 211 0xA1, 0x01, /* Collection (Application), */ 212 0xA1, 0x02, /* Collection (Logical), */ 213 0x14, /* Logical Minimum (0), */ 214 0x75, 0x08, /* Report Size (8), */ 215 0x95, 0x03, /* Report Count (3), */ 216 0x81, 0x01, /* Input (Constant), */ 217 0x26, 0xFF, 0x00, /* Logical Maximum (255), */ 218 0x95, 0x02, /* Report Count (2), */ 219 0x09, 0x30, /* Usage (X), */ 220 0x09, 0x31, /* Usage (Y), */ 221 0x81, 0x02, /* Input (Variable), */ 222 0x75, 0x01, /* Report Size (1), */ 223 0x95, 0x04, /* Report Count (4), */ 224 0x81, 0x01, /* Input (Constant), */ 225 0x25, 0x01, /* Logical Maximum (1), */ 226 0x95, 0x0A, /* Report Count (10), */ 227 0x05, 0x09, /* Usage Page (Button), */ 228 0x19, 0x01, /* Usage Minimum (01h), */ 229 0x29, 0x0A, /* Usage Maximum (0Ah), */ 230 0x81, 0x02, /* Input (Variable), */ 231 0x95, 0x0A, /* Report Count (10), */ 232 0x81, 0x01, /* Input (Constant), */ 233 0xC0, /* End Collection, */ 234 0xC0 /* End Collection */ 235 }; 236 237 static __u8 *dr_report_fixup(struct hid_device *hdev, __u8 *rdesc, 238 unsigned int *rsize) 239 { 240 switch (hdev->product) { 241 case 0x0011: 242 if (*rsize == PID0011_RDESC_ORIG_SIZE) { 243 rdesc = pid0011_rdesc_fixed; 244 *rsize = sizeof(pid0011_rdesc_fixed); 245 } 246 break; 247 } 248 return rdesc; 249 } 250 251 #define map_abs(c) hid_map_usage(hi, usage, bit, max, EV_ABS, (c)) 252 #define map_rel(c) hid_map_usage(hi, usage, bit, max, EV_REL, (c)) 253 254 static int dr_input_mapping(struct hid_device *hdev, struct hid_input *hi, 255 struct hid_field *field, struct hid_usage *usage, 256 unsigned long **bit, int *max) 257 { 258 switch (usage->hid) { 259 /* 260 * revert to the old hid-input behavior where axes 261 * can be randomly assigned when hid->usage is reused. 262 */ 263 case HID_GD_X: case HID_GD_Y: case HID_GD_Z: 264 case HID_GD_RX: case HID_GD_RY: case HID_GD_RZ: 265 if (field->flags & HID_MAIN_ITEM_RELATIVE) 266 map_rel(usage->hid & 0xf); 267 else 268 map_abs(usage->hid & 0xf); 269 return 1; 270 } 271 272 return 0; 273 } 274 275 static int dr_probe(struct hid_device *hdev, const struct hid_device_id *id) 276 { 277 int ret; 278 279 dev_dbg(&hdev->dev, "DragonRise Inc. HID hardware probe..."); 280 281 ret = hid_parse(hdev); 282 if (ret) { 283 hid_err(hdev, "parse failed\n"); 284 goto err; 285 } 286 287 ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT & ~HID_CONNECT_FF); 288 if (ret) { 289 hid_err(hdev, "hw start failed\n"); 290 goto err; 291 } 292 293 switch (hdev->product) { 294 case 0x0006: 295 ret = drff_init(hdev); 296 if (ret) { 297 dev_err(&hdev->dev, "force feedback init failed\n"); 298 hid_hw_stop(hdev); 299 goto err; 300 } 301 break; 302 } 303 304 return 0; 305 err: 306 return ret; 307 } 308 309 static const struct hid_device_id dr_devices[] = { 310 { HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, 0x0006), }, 311 { HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, 0x0011), }, 312 { } 313 }; 314 MODULE_DEVICE_TABLE(hid, dr_devices); 315 316 static struct hid_driver dr_driver = { 317 .name = "dragonrise", 318 .id_table = dr_devices, 319 .report_fixup = dr_report_fixup, 320 .probe = dr_probe, 321 .input_mapping = dr_input_mapping, 322 }; 323 module_hid_driver(dr_driver); 324 325 MODULE_LICENSE("GPL"); 326