1/* 2 * $Id: tmdc.c,v 1.1.1.1 2008/10/15 03:26:32 james26_jang Exp $ 3 * 4 * Copyright (c) 1998-2000 Vojtech Pavlik 5 * 6 * Sponsored by SuSE 7 * 8 * Based on the work of: 9 * Trystan Larey-Williams 10 * 11 */ 12 13/* 14 * ThrustMaster DirectConnect (BSP) joystick family driver for Linux 15 */ 16 17/* 18 * This program is free software; you can redistribute it and/or modify 19 * it under the terms of the GNU General Public License as published by 20 * the Free Software Foundation; either version 2 of the License, or 21 * (at your option) any later version. 22 * 23 * This program is distributed in the hope that it will be useful, 24 * but WITHOUT ANY WARRANTY; without even the implied warranty of 25 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 26 * GNU General Public License for more details. 27 * 28 * You should have received a copy of the GNU General Public License 29 * along with this program; if not, write to the Free Software 30 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 31 * 32 * Should you need to contact me, the author, you can do so either by 33 * e-mail - mail your message to <vojtech@suse.cz>, or by paper mail: 34 * Vojtech Pavlik, Ucitelska 1576, Prague 8, 182 00 Czech Republic 35 */ 36 37#include <linux/delay.h> 38#include <linux/kernel.h> 39#include <linux/slab.h> 40#include <linux/module.h> 41#include <linux/init.h> 42#include <linux/gameport.h> 43#include <linux/input.h> 44 45#define TMDC_MAX_START 400 /* 400 us */ 46#define TMDC_MAX_STROBE 45 /* 45 us */ 47#define TMDC_MAX_LENGTH 13 48#define TMDC_REFRESH_TIME HZ/50 /* 20 ms */ 49 50#define TMDC_MODE_M3DI 1 51#define TMDC_MODE_3DRP 3 52#define TMDC_MODE_AT 4 53#define TMDC_MODE_FM 8 54#define TMDC_MODE_FGP 163 55 56#define TMDC_BYTE_ID 10 57#define TMDC_BYTE_REV 11 58#define TMDC_BYTE_DEF 12 59 60#define TMDC_ABS 7 61#define TMDC_ABS_HAT 4 62#define TMDC_BTN 16 63 64static unsigned char tmdc_byte_a[16] = { 0, 1, 3, 4, 6, 7 }; 65static unsigned char tmdc_byte_d[16] = { 2, 5, 8, 9 }; 66 67static signed char tmdc_abs[TMDC_ABS] = 68 { ABS_X, ABS_Y, ABS_RUDDER, ABS_THROTTLE, ABS_RX, ABS_RY, ABS_RZ }; 69static signed char tmdc_abs_hat[TMDC_ABS_HAT] = 70 { ABS_HAT0X, ABS_HAT0Y, ABS_HAT1X, ABS_HAT1Y }; 71static signed char tmdc_abs_at[TMDC_ABS] = 72 { ABS_X, ABS_Y, ABS_RUDDER, -1, ABS_THROTTLE }; 73static signed char tmdc_abs_fm[TMDC_ABS] = 74 { ABS_RX, ABS_RY, ABS_X, ABS_Y }; 75 76static short tmdc_btn_pad[TMDC_BTN] = 77 { BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, BTN_START, BTN_SELECT, BTN_TL, BTN_TR }; 78static short tmdc_btn_joy[TMDC_BTN] = 79 { BTN_TRIGGER, BTN_THUMB, BTN_TOP, BTN_TOP2, BTN_BASE, BTN_BASE2, BTN_THUMB2, BTN_PINKIE, 80 BTN_BASE3, BTN_BASE4, BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z }; 81static short tmdc_btn_fm[TMDC_BTN] = 82 { BTN_TRIGGER, BTN_C, BTN_B, BTN_A, BTN_THUMB, BTN_X, BTN_Y, BTN_Z, BTN_TOP, BTN_TOP2 }; 83static short tmdc_btn_at[TMDC_BTN] = 84 { BTN_TRIGGER, BTN_THUMB2, BTN_PINKIE, BTN_THUMB, BTN_BASE6, BTN_BASE5, BTN_BASE4, 85 BTN_BASE3, BTN_BASE2, BTN_BASE }; 86 87static struct { 88 int x; 89 int y; 90} tmdc_hat_to_axis[] = {{ 0, 0}, { 1, 0}, { 0,-1}, {-1, 0}, { 0, 1}}; 91 92struct tmdc { 93 struct gameport *gameport; 94 struct timer_list timer; 95 struct input_dev dev[2]; 96 char name[2][64]; 97 int mode[2]; 98 signed char *abs[2]; 99 short *btn[2]; 100 unsigned char absc[2]; 101 unsigned char btnc[2][4]; 102 unsigned char btno[2][4]; 103 int used; 104 int reads; 105 int bads; 106 unsigned char exists; 107}; 108 109/* 110 * tmdc_read_packet() reads a ThrustMaster packet. 111 */ 112 113static int tmdc_read_packet(struct gameport *gameport, unsigned char data[2][TMDC_MAX_LENGTH]) 114{ 115 unsigned char u, v, w, x; 116 unsigned long flags; 117 int i[2], j[2], t[2], p, k; 118 119 p = gameport_time(gameport, TMDC_MAX_STROBE); 120 121 for (k = 0; k < 2; k++) { 122 t[k] = gameport_time(gameport, TMDC_MAX_START); 123 i[k] = j[k] = 0; 124 } 125 126 __save_flags(flags); 127 __cli(); 128 gameport_trigger(gameport); 129 130 w = gameport_read(gameport) >> 4; 131 132 do { 133 x = w; 134 w = gameport_read(gameport) >> 4; 135 136 for (k = 0, v = w, u = x; k < 2; k++, v >>= 2, u >>= 2) { 137 if (~v & u & 2) { 138 if (t[k] <= 0 || i[k] >= TMDC_MAX_LENGTH) continue; 139 t[k] = p; 140 if (j[k] == 0) { /* Start bit */ 141 if (~v & 1) t[k] = 0; 142 data[k][i[k]] = 0; j[k]++; continue; 143 } 144 if (j[k] == 9) { /* Stop bit */ 145 if (v & 1) t[k] = 0; 146 j[k] = 0; i[k]++; continue; 147 } 148 data[k][i[k]] |= (~v & 1) << (j[k]++ - 1); /* Data bit */ 149 } 150 t[k]--; 151 } 152 } while (t[0] > 0 || t[1] > 0); 153 154 __restore_flags(flags); 155 156 return (i[0] == TMDC_MAX_LENGTH) | ((i[1] == TMDC_MAX_LENGTH) << 1); 157} 158 159/* 160 * tmdc_read() reads and analyzes ThrustMaster joystick data. 161 */ 162 163static void tmdc_timer(unsigned long private) 164{ 165 unsigned char data[2][TMDC_MAX_LENGTH]; 166 struct tmdc *tmdc = (void *) private; 167 struct input_dev *dev; 168 unsigned char r, bad = 0; 169 int i, j, k, l; 170 171 tmdc->reads++; 172 173 if ((r = tmdc_read_packet(tmdc->gameport, data)) != tmdc->exists) 174 bad = 1; 175 176 for (j = 0; j < 2; j++) 177 if (r & (1 << j) & tmdc->exists) { 178 179 if (data[j][TMDC_BYTE_ID] != tmdc->mode[j]) { 180 bad = 1; 181 continue; 182 } 183 184 dev = tmdc->dev + j; 185 186 for (i = 0; i < tmdc->absc[j]; i++) { 187 if (tmdc->abs[j][i] < 0) continue; 188 input_report_abs(dev, tmdc->abs[j][i], data[j][tmdc_byte_a[i]]); 189 } 190 191 switch (tmdc->mode[j]) { 192 193 case TMDC_MODE_M3DI: 194 195 i = tmdc_byte_d[0]; 196 input_report_abs(dev, ABS_HAT0X, ((data[j][i] >> 3) & 1) - ((data[j][i] >> 1) & 1)); 197 input_report_abs(dev, ABS_HAT0Y, ((data[j][i] >> 2) & 1) - ( data[j][i] & 1)); 198 break; 199 200 case TMDC_MODE_AT: 201 202 i = tmdc_byte_a[3]; 203 input_report_abs(dev, ABS_HAT0X, tmdc_hat_to_axis[(data[j][i] - 141) / 25].x); 204 input_report_abs(dev, ABS_HAT0Y, tmdc_hat_to_axis[(data[j][i] - 141) / 25].y); 205 break; 206 207 } 208 209 for (k = l = 0; k < 4; k++) { 210 for (i = 0; i < tmdc->btnc[j][k]; i++) 211 input_report_key(dev, tmdc->btn[j][i + l], 212 ((data[j][tmdc_byte_d[k]] >> (i + tmdc->btno[j][k])) & 1)); 213 l += tmdc->btnc[j][k]; 214 } 215 } 216 217 tmdc->bads += bad; 218 219 mod_timer(&tmdc->timer, jiffies + TMDC_REFRESH_TIME); 220} 221 222static int tmdc_open(struct input_dev *dev) 223{ 224 struct tmdc *tmdc = dev->private; 225 if (!tmdc->used++) 226 mod_timer(&tmdc->timer, jiffies + TMDC_REFRESH_TIME); 227 return 0; 228} 229 230static void tmdc_close(struct input_dev *dev) 231{ 232 struct tmdc *tmdc = dev->private; 233 if (!--tmdc->used) 234 del_timer(&tmdc->timer); 235} 236 237/* 238 * tmdc_probe() probes for ThrustMaster type joysticks. 239 */ 240 241static void tmdc_connect(struct gameport *gameport, struct gameport_dev *dev) 242{ 243 struct models { 244 unsigned char id; 245 char *name; 246 char abs; 247 char hats; 248 char btnc[4]; 249 char btno[4]; 250 signed char *axes; 251 short *buttons; 252 } models[] = { { 1, "ThrustMaster Millenium 3D Inceptor", 6, 2, { 4, 2 }, { 4, 6 }, tmdc_abs, tmdc_btn_joy }, 253 { 3, "ThrustMaster Rage 3D Gamepad", 2, 0, { 8, 2 }, { 0, 0 }, tmdc_abs, tmdc_btn_pad }, 254 { 4, "ThrustMaster Attack Throttle", 5, 2, { 4, 6 }, { 4, 2 }, tmdc_abs_at, tmdc_btn_at }, 255 { 8, "ThrustMaster FragMaster", 4, 0, { 8, 2 }, { 0, 0 }, tmdc_abs_fm, tmdc_btn_fm }, 256 { 163, "Thrustmaster Fusion GamePad", 2, 0, { 8, 2 }, { 0, 0 }, tmdc_abs, tmdc_btn_pad }, 257 { 0, "Unknown %d-axis, %d-button TM device %d", 0, 0, { 0, 0 }, { 0, 0 }, tmdc_abs, tmdc_btn_joy }}; 258 259 unsigned char data[2][TMDC_MAX_LENGTH]; 260 struct tmdc *tmdc; 261 int i, j, k, l, m; 262 263 if (!(tmdc = kmalloc(sizeof(struct tmdc), GFP_KERNEL))) 264 return; 265 memset(tmdc, 0, sizeof(struct tmdc)); 266 267 gameport->private = tmdc; 268 269 tmdc->gameport = gameport; 270 init_timer(&tmdc->timer); 271 tmdc->timer.data = (long) tmdc; 272 tmdc->timer.function = tmdc_timer; 273 274 if (gameport_open(gameport, dev, GAMEPORT_MODE_RAW)) 275 goto fail1; 276 277 if (!(tmdc->exists = tmdc_read_packet(gameport, data))) 278 goto fail2; 279 280 for (j = 0; j < 2; j++) 281 if (tmdc->exists & (1 << j)) { 282 283 tmdc->mode[j] = data[j][TMDC_BYTE_ID]; 284 285 for (m = 0; models[m].id && models[m].id != tmdc->mode[j]; m++); 286 287 tmdc->abs[j] = models[m].axes; 288 tmdc->btn[j] = models[m].buttons; 289 290 if (!models[m].id) { 291 models[m].abs = data[j][TMDC_BYTE_DEF] >> 4; 292 for (k = 0; k < 4; k++) 293 models[m].btnc[k] = k < (data[j][TMDC_BYTE_DEF] & 0xf) ? 8 : 0; 294 } 295 296 tmdc->absc[j] = models[m].abs; 297 for (k = 0; k < 4; k++) { 298 tmdc->btnc[j][k] = models[m].btnc[k]; 299 tmdc->btno[j][k] = models[m].btno[k]; 300 } 301 302 sprintf(tmdc->name[j], models[m].name, models[m].abs, 303 (data[j][TMDC_BYTE_DEF] & 0xf) << 3, tmdc->mode[j]); 304 305 tmdc->dev[j].private = tmdc; 306 tmdc->dev[j].open = tmdc_open; 307 tmdc->dev[j].close = tmdc_close; 308 309 tmdc->dev[j].name = tmdc->name[j]; 310 tmdc->dev[j].idbus = BUS_GAMEPORT; 311 tmdc->dev[j].idvendor = GAMEPORT_ID_VENDOR_THRUSTMASTER; 312 tmdc->dev[j].idproduct = models[m].id; 313 tmdc->dev[j].idversion = 0x0100; 314 315 tmdc->dev[j].evbit[0] = BIT(EV_KEY) | BIT(EV_ABS); 316 317 for (i = 0; i < models[m].abs && i < TMDC_ABS; i++) { 318 if (tmdc->abs[i] < 0) continue; 319 set_bit(tmdc->abs[j][i], tmdc->dev[j].absbit); 320 tmdc->dev[j].absmin[tmdc->abs[j][i]] = 8; 321 tmdc->dev[j].absmax[tmdc->abs[j][i]] = 248; 322 tmdc->dev[j].absfuzz[tmdc->abs[j][i]] = 2; 323 tmdc->dev[j].absflat[tmdc->abs[j][i]] = 4; 324 } 325 326 for (i = 0; i < models[m].hats && i < TMDC_ABS_HAT; i++) { 327 set_bit(tmdc_abs_hat[i], tmdc->dev[j].absbit); 328 tmdc->dev[j].absmin[tmdc_abs_hat[i]] = -1; 329 tmdc->dev[j].absmax[tmdc_abs_hat[i]] = 1; 330 } 331 332 for (k = l = 0; k < 4; k++) { 333 for (i = 0; i < models[m].btnc[k] && i < TMDC_BTN; i++) 334 set_bit(tmdc->btn[j][i + l], tmdc->dev[j].keybit); 335 l += models[m].btnc[k]; 336 } 337 338 input_register_device(tmdc->dev + j); 339 printk(KERN_INFO "input%d: %s on gameport%d.%d\n", 340 tmdc->dev[j].number, tmdc->name[j], gameport->number, j); 341 } 342 343 return; 344fail2: gameport_close(gameport); 345fail1: kfree(tmdc); 346} 347 348static void tmdc_disconnect(struct gameport *gameport) 349{ 350 struct tmdc *tmdc = gameport->private; 351 int i; 352 for (i = 0; i < 2; i++) 353 if (tmdc->exists & (1 << i)) 354 input_unregister_device(tmdc->dev + i); 355 gameport_close(gameport); 356 kfree(tmdc); 357} 358 359static struct gameport_dev tmdc_dev = { 360 connect: tmdc_connect, 361 disconnect: tmdc_disconnect, 362}; 363 364int __init tmdc_init(void) 365{ 366 gameport_register_device(&tmdc_dev); 367 return 0; 368} 369 370void __exit tmdc_exit(void) 371{ 372 gameport_unregister_device(&tmdc_dev); 373} 374 375module_init(tmdc_init); 376module_exit(tmdc_exit); 377 378MODULE_LICENSE("GPL"); 379