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/usb.h> 33 #include <linux/hid.h> 34 35 #include "hid-ids.h" 36 37 #ifdef CONFIG_DRAGONRISE_FF 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)) { 99 hid_err(hid, "no output reports found\n"); 100 return -ENODEV; 101 } 102 103 report = list_first_entry(report_list, struct hid_report, list); 104 if (report->maxfield < 1) { 105 hid_err(hid, "no fields in the report\n"); 106 return -ENODEV; 107 } 108 109 if (report->field[0]->report_count < 7) { 110 hid_err(hid, "not enough values in the field\n"); 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); 135 136 hid_info(hid, "Force Feedback for DragonRise Inc. " 137 "game controllers by Richard Walmsley <richwalm@gmail.com>\n"); 138 139 return 0; 140 } 141 #else 142 static inline int drff_init(struct hid_device *hid) 143 { 144 return 0; 145 } 146 #endif 147 148 /* 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 } 251 252 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) { 260 hid_err(hdev, "parse failed\n"); 261 goto err; 262 } 263 264 ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT & ~HID_CONNECT_FF); 265 if (ret) { 266 hid_err(hdev, "hw start failed\n"); 267 goto err; 268 } 269 270 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 } 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), }, 288 { HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, 0x0011), }, 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, 296 .report_fixup = dr_report_fixup, 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"); 313