1 /* 2 * $Id: db9.c,v 1.13 2002/04/07 20:13:37 vojtech Exp $ 3 * 4 * Copyright (c) 1999-2001 Vojtech Pavlik 5 * 6 * Based on the work of: 7 * Andree Borrmann Mats Sj�vall 8 */ 9 10 /* 11 * Atari, Amstrad, Commodore, Amiga, Sega, etc. joystick driver for Linux 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 * Should you need to contact me, the author, you can do so either by 30 * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail: 31 * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic 32 */ 33 34 #include <linux/kernel.h> 35 #include <linux/module.h> 36 #include <linux/moduleparam.h> 37 #include <linux/delay.h> 38 #include <linux/init.h> 39 #include <linux/parport.h> 40 #include <linux/input.h> 41 42 MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>"); 43 MODULE_DESCRIPTION("Atari, Amstrad, Commodore, Amiga, Sega, etc. joystick driver"); 44 MODULE_LICENSE("GPL"); 45 46 static int db9[] __initdata = { -1, 0 }; 47 static int db9_nargs __initdata = 0; 48 module_param_array_named(dev, db9, int, &db9_nargs, 0); 49 MODULE_PARM_DESC(dev, "Describes first attached device (<parport#>,<type>)"); 50 51 static int db9_2[] __initdata = { -1, 0 }; 52 static int db9_nargs_2 __initdata = 0; 53 module_param_array_named(dev2, db9_2, int, &db9_nargs_2, 0); 54 MODULE_PARM_DESC(dev2, "Describes second attached device (<parport#>,<type>)"); 55 56 static int db9_3[] __initdata = { -1, 0 }; 57 static int db9_nargs_3 __initdata = 0; 58 module_param_array_named(dev3, db9_3, int, &db9_nargs_3, 0); 59 MODULE_PARM_DESC(dev3, "Describes third attached device (<parport#>,<type>)"); 60 61 __obsolete_setup("db9="); 62 __obsolete_setup("db9_2="); 63 __obsolete_setup("db9_3="); 64 65 #define DB9_MULTI_STICK 0x01 66 #define DB9_MULTI2_STICK 0x02 67 #define DB9_GENESIS_PAD 0x03 68 #define DB9_GENESIS5_PAD 0x05 69 #define DB9_GENESIS6_PAD 0x06 70 #define DB9_SATURN_PAD 0x07 71 #define DB9_MULTI_0802 0x08 72 #define DB9_MULTI_0802_2 0x09 73 #define DB9_CD32_PAD 0x0A 74 #define DB9_SATURN_DPP 0x0B 75 #define DB9_SATURN_DPP_2 0x0C 76 #define DB9_MAX_PAD 0x0D 77 78 #define DB9_UP 0x01 79 #define DB9_DOWN 0x02 80 #define DB9_LEFT 0x04 81 #define DB9_RIGHT 0x08 82 #define DB9_FIRE1 0x10 83 #define DB9_FIRE2 0x20 84 #define DB9_FIRE3 0x40 85 #define DB9_FIRE4 0x80 86 87 #define DB9_NORMAL 0x0a 88 #define DB9_NOSELECT 0x08 89 90 #define DB9_MAX_DEVICES 2 91 92 #define DB9_GENESIS6_DELAY 14 93 #define DB9_REFRESH_TIME HZ/100 94 95 struct db9 { 96 struct input_dev dev[DB9_MAX_DEVICES]; 97 struct timer_list timer; 98 struct pardevice *pd; 99 int mode; 100 int used; 101 char phys[2][32]; 102 }; 103 104 static struct db9 *db9_base[3]; 105 106 static short db9_multi_btn[] = { BTN_TRIGGER, BTN_THUMB }; 107 static short db9_genesis_btn[] = { BTN_START, BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, BTN_MODE }; 108 static short db9_cd32_btn[] = { BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, BTN_TL, BTN_TR, BTN_START }; 109 110 static char db9_buttons[DB9_MAX_PAD] = { 0, 1, 2, 4, 0, 6, 8, 9, 1, 1, 7, 9, 9 }; 111 static short *db9_btn[DB9_MAX_PAD] = { NULL, db9_multi_btn, db9_multi_btn, db9_genesis_btn, NULL, db9_genesis_btn, 112 db9_genesis_btn, db9_cd32_btn, db9_multi_btn, db9_multi_btn, db9_cd32_btn, 113 db9_cd32_btn, db9_cd32_btn }; 114 static char *db9_name[DB9_MAX_PAD] = { NULL, "Multisystem joystick", "Multisystem joystick (2 fire)", "Genesis pad", 115 NULL, "Genesis 5 pad", "Genesis 6 pad", "Saturn pad", "Multisystem (0.8.0.2) joystick", 116 "Multisystem (0.8.0.2-dual) joystick", "Amiga CD-32 pad", "Saturn dpp", "Saturn dpp dual" }; 117 118 static const int db9_max_pads[DB9_MAX_PAD] = { 0, 1, 1, 1, 0, 1, 1, 6, 1, 2, 1, 6, 12 }; 119 static const int db9_num_axis[DB9_MAX_PAD] = { 0, 2, 2, 2, 0, 2, 2, 7, 2, 2, 2 ,7, 7 }; 120 static const short db9_abs[] = { ABS_X, ABS_Y, ABS_RX, ABS_RY, ABS_RZ, ABS_Z, ABS_HAT0X, ABS_HAT0Y, ABS_HAT1X, ABS_HAT1Y }; 121 static const int db9_bidirectional[DB9_MAX_PAD] = { 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 0, 0 }; 122 static const int db9_reverse[DB9_MAX_PAD] = { 0, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 0, 0 }; 123 124 /* 125 * Saturn controllers 126 */ 127 #define DB9_SATURN_DELAY 300 128 static const int db9_saturn_byte[] = { 1, 1, 1, 2, 2, 2, 2, 2, 1 }; 129 static const unsigned char db9_saturn_mask[] = { 0x04, 0x01, 0x02, 0x40, 0x20, 0x10, 0x08, 0x80, 0x08 }; 130 131 /* 132 * db9_saturn_write_sub() writes 2 bit data. 133 */ 134 static void db9_saturn_write_sub(struct parport *port, int type, unsigned char data, int powered, int pwr_sub) 135 { 136 unsigned char c; 137 138 switch (type) { 139 case 1: /* DPP1 */ 140 c = 0x80 | 0x30 | (powered ? 0x08 : 0) | (pwr_sub ? 0x04 : 0) | data; 141 parport_write_data(port, c); 142 break; 143 case 2: /* DPP2 */ 144 c = 0x40 | data << 4 | (powered ? 0x08 : 0) | (pwr_sub ? 0x04 : 0) | 0x03; 145 parport_write_data(port, c); 146 break; 147 case 0: /* DB9 */ 148 c = ((((data & 2) ? 2 : 0) | ((data & 1) ? 4 : 0)) ^ 0x02) | !powered; 149 parport_write_control(port, c); 150 break; 151 } 152 } 153 154 /* 155 * gc_saturn_read_sub() reads 4 bit data. 156 */ 157 static unsigned char db9_saturn_read_sub(struct parport *port, int type) 158 { 159 unsigned char data; 160 161 if (type) { 162 /* DPP */ 163 data = parport_read_status(port) ^ 0x80; 164 return (data & 0x80 ? 1 : 0) | (data & 0x40 ? 2 : 0) 165 | (data & 0x20 ? 4 : 0) | (data & 0x10 ? 8 : 0); 166 } else { 167 /* DB9 */ 168 data = parport_read_data(port) & 0x0f; 169 return (data & 0x8 ? 1 : 0) | (data & 0x4 ? 2 : 0) 170 | (data & 0x2 ? 4 : 0) | (data & 0x1 ? 8 : 0); 171 } 172 } 173 174 /* 175 * db9_saturn_read_analog() sends clock and reads 8 bit data. 176 */ 177 static unsigned char db9_saturn_read_analog(struct parport *port, int type, int powered) 178 { 179 unsigned char data; 180 181 db9_saturn_write_sub(port, type, 0, powered, 0); 182 udelay(DB9_SATURN_DELAY); 183 data = db9_saturn_read_sub(port, type) << 4; 184 db9_saturn_write_sub(port, type, 2, powered, 0); 185 udelay(DB9_SATURN_DELAY); 186 data |= db9_saturn_read_sub(port, type); 187 return data; 188 } 189 190 /* 191 * db9_saturn_read_packet() reads whole saturn packet at connector 192 * and returns device identifier code. 193 */ 194 static unsigned char db9_saturn_read_packet(struct parport *port, unsigned char *data, int type, int powered) 195 { 196 int i, j; 197 unsigned char tmp; 198 199 db9_saturn_write_sub(port, type, 3, powered, 0); 200 data[0] = db9_saturn_read_sub(port, type); 201 switch (data[0] & 0x0f) { 202 case 0xf: 203 /* 1111 no pad */ 204 return data[0] = 0xff; 205 case 0x4: case 0x4 | 0x8: 206 /* ?100 : digital controller */ 207 db9_saturn_write_sub(port, type, 0, powered, 1); 208 data[2] = db9_saturn_read_sub(port, type) << 4; 209 db9_saturn_write_sub(port, type, 2, powered, 1); 210 data[1] = db9_saturn_read_sub(port, type) << 4; 211 db9_saturn_write_sub(port, type, 1, powered, 1); 212 data[1] |= db9_saturn_read_sub(port, type); 213 db9_saturn_write_sub(port, type, 3, powered, 1); 214 /* data[2] |= db9_saturn_read_sub(port, type); */ 215 data[2] |= data[0]; 216 return data[0] = 0x02; 217 case 0x1: 218 /* 0001 : analog controller or multitap */ 219 db9_saturn_write_sub(port, type, 2, powered, 0); 220 udelay(DB9_SATURN_DELAY); 221 data[0] = db9_saturn_read_analog(port, type, powered); 222 if (data[0] != 0x41) { 223 /* read analog controller */ 224 for (i = 0; i < (data[0] & 0x0f); i++) 225 data[i + 1] = db9_saturn_read_analog(port, type, powered); 226 db9_saturn_write_sub(port, type, 3, powered, 0); 227 return data[0]; 228 } else { 229 /* read multitap */ 230 if (db9_saturn_read_analog(port, type, powered) != 0x60) 231 return data[0] = 0xff; 232 for (i = 0; i < 60; i += 10) { 233 data[i] = db9_saturn_read_analog(port, type, powered); 234 if (data[i] != 0xff) 235 /* read each pad */ 236 for (j = 0; j < (data[i] & 0x0f); j++) 237 data[i + j + 1] = db9_saturn_read_analog(port, type, powered); 238 } 239 db9_saturn_write_sub(port, type, 3, powered, 0); 240 return 0x41; 241 } 242 case 0x0: 243 /* 0000 : mouse */ 244 db9_saturn_write_sub(port, type, 2, powered, 0); 245 udelay(DB9_SATURN_DELAY); 246 tmp = db9_saturn_read_analog(port, type, powered); 247 if (tmp == 0xff) { 248 for (i = 0; i < 3; i++) 249 data[i + 1] = db9_saturn_read_analog(port, type, powered); 250 db9_saturn_write_sub(port, type, 3, powered, 0); 251 return data[0] = 0xe3; 252 } 253 default: 254 return data[0]; 255 } 256 } 257 258 /* 259 * db9_saturn_report() analyzes packet and reports. 260 */ 261 static int db9_saturn_report(unsigned char id, unsigned char data[60], struct input_dev *dev, int n, int max_pads) 262 { 263 int tmp, i, j; 264 265 tmp = (id == 0x41) ? 60 : 10; 266 for (j = 0; (j < tmp) && (n < max_pads); j += 10, n++) { 267 switch (data[j]) { 268 case 0x16: /* multi controller (analog 4 axis) */ 269 input_report_abs(dev + n, db9_abs[5], data[j + 6]); 270 case 0x15: /* mission stick (analog 3 axis) */ 271 input_report_abs(dev + n, db9_abs[3], data[j + 4]); 272 input_report_abs(dev + n, db9_abs[4], data[j + 5]); 273 case 0x13: /* racing controller (analog 1 axis) */ 274 input_report_abs(dev + n, db9_abs[2], data[j + 3]); 275 case 0x34: /* saturn keyboard (udlr ZXC ASD QE Esc) */ 276 case 0x02: /* digital pad (digital 2 axis + buttons) */ 277 input_report_abs(dev + n, db9_abs[0], !(data[j + 1] & 128) - !(data[j + 1] & 64)); 278 input_report_abs(dev + n, db9_abs[1], !(data[j + 1] & 32) - !(data[j + 1] & 16)); 279 for (i = 0; i < 9; i++) 280 input_report_key(dev + n, db9_cd32_btn[i], ~data[j + db9_saturn_byte[i]] & db9_saturn_mask[i]); 281 break; 282 case 0x19: /* mission stick x2 (analog 6 axis + buttons) */ 283 input_report_abs(dev + n, db9_abs[0], !(data[j + 1] & 128) - !(data[j + 1] & 64)); 284 input_report_abs(dev + n, db9_abs[1], !(data[j + 1] & 32) - !(data[j + 1] & 16)); 285 for (i = 0; i < 9; i++) 286 input_report_key(dev + n, db9_cd32_btn[i], ~data[j + db9_saturn_byte[i]] & db9_saturn_mask[i]); 287 input_report_abs(dev + n, db9_abs[2], data[j + 3]); 288 input_report_abs(dev + n, db9_abs[3], data[j + 4]); 289 input_report_abs(dev + n, db9_abs[4], data[j + 5]); 290 /* 291 input_report_abs(dev + n, db9_abs[8], (data[j + 6] & 128 ? 0 : 1) - (data[j + 6] & 64 ? 0 : 1)); 292 input_report_abs(dev + n, db9_abs[9], (data[j + 6] & 32 ? 0 : 1) - (data[j + 6] & 16 ? 0 : 1)); 293 */ 294 input_report_abs(dev + n, db9_abs[6], data[j + 7]); 295 input_report_abs(dev + n, db9_abs[7], data[j + 8]); 296 input_report_abs(dev + n, db9_abs[5], data[j + 9]); 297 break; 298 case 0xd3: /* sankyo ff (analog 1 axis + stop btn) */ 299 input_report_key(dev + n, BTN_A, data[j + 3] & 0x80); 300 input_report_abs(dev + n, db9_abs[2], data[j + 3] & 0x7f); 301 break; 302 case 0xe3: /* shuttle mouse (analog 2 axis + buttons. signed value) */ 303 input_report_key(dev + n, BTN_START, data[j + 1] & 0x08); 304 input_report_key(dev + n, BTN_A, data[j + 1] & 0x04); 305 input_report_key(dev + n, BTN_C, data[j + 1] & 0x02); 306 input_report_key(dev + n, BTN_B, data[j + 1] & 0x01); 307 input_report_abs(dev + n, db9_abs[2], data[j + 2] ^ 0x80); 308 input_report_abs(dev + n, db9_abs[3], (0xff-(data[j + 3] ^ 0x80))+1); /* */ 309 break; 310 case 0xff: 311 default: /* no pad */ 312 input_report_abs(dev + n, db9_abs[0], 0); 313 input_report_abs(dev + n, db9_abs[1], 0); 314 for (i = 0; i < 9; i++) 315 input_report_key(dev + n, db9_cd32_btn[i], 0); 316 break; 317 } 318 } 319 return n; 320 } 321 322 static int db9_saturn(int mode, struct parport *port, struct input_dev *dev) 323 { 324 unsigned char id, data[60]; 325 int type, n, max_pads; 326 int tmp, i; 327 328 switch (mode) { 329 case DB9_SATURN_PAD: 330 type = 0; 331 n = 1; 332 break; 333 case DB9_SATURN_DPP: 334 type = 1; 335 n = 1; 336 break; 337 case DB9_SATURN_DPP_2: 338 type = 1; 339 n = 2; 340 break; 341 default: 342 return -1; 343 } 344 max_pads = min(db9_max_pads[mode], DB9_MAX_DEVICES); 345 for (tmp = 0, i = 0; i < n; i++) { 346 id = db9_saturn_read_packet(port, data, type + i, 1); 347 tmp = db9_saturn_report(id, data, dev, tmp, max_pads); 348 } 349 return 0; 350 } 351 352 static void db9_timer(unsigned long private) 353 { 354 struct db9 *db9 = (void *) private; 355 struct parport *port = db9->pd->port; 356 struct input_dev *dev = db9->dev; 357 int data, i; 358 359 switch(db9->mode) { 360 case DB9_MULTI_0802_2: 361 362 data = parport_read_data(port) >> 3; 363 364 input_report_abs(dev + 1, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1)); 365 input_report_abs(dev + 1, ABS_Y, (data & DB9_DOWN ? 0 : 1) - (data & DB9_UP ? 0 : 1)); 366 input_report_key(dev + 1, BTN_TRIGGER, ~data & DB9_FIRE1); 367 368 case DB9_MULTI_0802: 369 370 data = parport_read_status(port) >> 3; 371 372 input_report_abs(dev, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1)); 373 input_report_abs(dev, ABS_Y, (data & DB9_DOWN ? 0 : 1) - (data & DB9_UP ? 0 : 1)); 374 input_report_key(dev, BTN_TRIGGER, data & DB9_FIRE1); 375 break; 376 377 case DB9_MULTI_STICK: 378 379 data = parport_read_data(port); 380 381 input_report_abs(dev, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1)); 382 input_report_abs(dev, ABS_Y, (data & DB9_DOWN ? 0 : 1) - (data & DB9_UP ? 0 : 1)); 383 input_report_key(dev, BTN_TRIGGER, ~data & DB9_FIRE1); 384 break; 385 386 case DB9_MULTI2_STICK: 387 388 data = parport_read_data(port); 389 390 input_report_abs(dev, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1)); 391 input_report_abs(dev, ABS_Y, (data & DB9_DOWN ? 0 : 1) - (data & DB9_UP ? 0 : 1)); 392 input_report_key(dev, BTN_TRIGGER, ~data & DB9_FIRE1); 393 input_report_key(dev, BTN_THUMB, ~data & DB9_FIRE2); 394 break; 395 396 case DB9_GENESIS_PAD: 397 398 parport_write_control(port, DB9_NOSELECT); 399 data = parport_read_data(port); 400 401 input_report_abs(dev, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1)); 402 input_report_abs(dev, ABS_Y, (data & DB9_DOWN ? 0 : 1) - (data & DB9_UP ? 0 : 1)); 403 input_report_key(dev, BTN_B, ~data & DB9_FIRE1); 404 input_report_key(dev, BTN_C, ~data & DB9_FIRE2); 405 406 parport_write_control(port, DB9_NORMAL); 407 data=parport_read_data(port); 408 409 input_report_key(dev, BTN_A, ~data & DB9_FIRE1); 410 input_report_key(dev, BTN_START, ~data & DB9_FIRE2); 411 break; 412 413 case DB9_GENESIS5_PAD: 414 415 parport_write_control(port, DB9_NOSELECT); 416 data=parport_read_data(port); 417 418 input_report_abs(dev, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1)); 419 input_report_abs(dev, ABS_Y, (data & DB9_DOWN ? 0 : 1) - (data & DB9_UP ? 0 : 1)); 420 input_report_key(dev, BTN_B, ~data & DB9_FIRE1); 421 input_report_key(dev, BTN_C, ~data & DB9_FIRE2); 422 423 parport_write_control(port, DB9_NORMAL); 424 data=parport_read_data(port); 425 426 input_report_key(dev, BTN_A, ~data & DB9_FIRE1); 427 input_report_key(dev, BTN_X, ~data & DB9_FIRE2); 428 input_report_key(dev, BTN_Y, ~data & DB9_LEFT); 429 input_report_key(dev, BTN_START, ~data & DB9_RIGHT); 430 break; 431 432 case DB9_GENESIS6_PAD: 433 434 parport_write_control(port, DB9_NOSELECT); /* 1 */ 435 udelay(DB9_GENESIS6_DELAY); 436 data=parport_read_data(port); 437 438 input_report_abs(dev, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1)); 439 input_report_abs(dev, ABS_Y, (data & DB9_DOWN ? 0 : 1) - (data & DB9_UP ? 0 : 1)); 440 input_report_key(dev, BTN_B, ~data & DB9_FIRE1); 441 input_report_key(dev, BTN_C, ~data & DB9_FIRE2); 442 443 parport_write_control(port, DB9_NORMAL); 444 udelay(DB9_GENESIS6_DELAY); 445 data=parport_read_data(port); 446 447 input_report_key(dev, BTN_A, ~data & DB9_FIRE1); 448 input_report_key(dev, BTN_START, ~data & DB9_FIRE2); 449 450 parport_write_control(port, DB9_NOSELECT); /* 2 */ 451 udelay(DB9_GENESIS6_DELAY); 452 parport_write_control(port, DB9_NORMAL); 453 udelay(DB9_GENESIS6_DELAY); 454 parport_write_control(port, DB9_NOSELECT); /* 3 */ 455 udelay(DB9_GENESIS6_DELAY); 456 data=parport_read_data(port); 457 458 input_report_key(dev, BTN_X, ~data & DB9_LEFT); 459 input_report_key(dev, BTN_Y, ~data & DB9_DOWN); 460 input_report_key(dev, BTN_Z, ~data & DB9_UP); 461 input_report_key(dev, BTN_MODE, ~data & DB9_RIGHT); 462 463 parport_write_control(port, DB9_NORMAL); 464 udelay(DB9_GENESIS6_DELAY); 465 parport_write_control(port, DB9_NOSELECT); /* 4 */ 466 udelay(DB9_GENESIS6_DELAY); 467 parport_write_control(port, DB9_NORMAL); 468 break; 469 470 case DB9_SATURN_PAD: 471 case DB9_SATURN_DPP: 472 case DB9_SATURN_DPP_2: 473 474 db9_saturn(db9->mode, port, dev); 475 break; 476 477 case DB9_CD32_PAD: 478 479 data=parport_read_data(port); 480 481 input_report_abs(dev, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1)); 482 input_report_abs(dev, ABS_Y, (data & DB9_DOWN ? 0 : 1) - (data & DB9_UP ? 0 : 1)); 483 484 parport_write_control(port, 0x0a); 485 486 for (i = 0; i < 7; i++) { 487 data = parport_read_data(port); 488 parport_write_control(port, 0x02); 489 parport_write_control(port, 0x0a); 490 input_report_key(dev, db9_cd32_btn[i], ~data & DB9_FIRE2); 491 } 492 493 parport_write_control(port, 0x00); 494 break; 495 } 496 497 input_sync(dev); 498 499 mod_timer(&db9->timer, jiffies + DB9_REFRESH_TIME); 500 } 501 502 static int db9_open(struct input_dev *dev) 503 { 504 struct db9 *db9 = dev->private; 505 struct parport *port = db9->pd->port; 506 507 if (!db9->used++) { 508 parport_claim(db9->pd); 509 parport_write_data(port, 0xff); 510 if (db9_reverse[db9->mode]) { 511 parport_data_reverse(port); 512 parport_write_control(port, DB9_NORMAL); 513 } 514 mod_timer(&db9->timer, jiffies + DB9_REFRESH_TIME); 515 } 516 517 return 0; 518 } 519 520 static void db9_close(struct input_dev *dev) 521 { 522 struct db9 *db9 = dev->private; 523 struct parport *port = db9->pd->port; 524 525 if (!--db9->used) { 526 del_timer(&db9->timer); 527 parport_write_control(port, 0x00); 528 parport_data_forward(port); 529 parport_release(db9->pd); 530 } 531 } 532 533 static struct db9 __init *db9_probe(int *config, int nargs) 534 { 535 struct db9 *db9; 536 struct parport *pp; 537 int i, j; 538 539 if (config[0] < 0) 540 return NULL; 541 542 if (nargs < 2) { 543 printk(KERN_ERR "db9.c: Device type must be specified.\n"); 544 return NULL; 545 } 546 547 if (config[1] < 1 || config[1] >= DB9_MAX_PAD || !db9_buttons[config[1]]) { 548 printk(KERN_ERR "db9.c: bad config\n"); 549 return NULL; 550 } 551 552 pp = parport_find_number(config[0]); 553 if (!pp) { 554 printk(KERN_ERR "db9.c: no such parport\n"); 555 return NULL; 556 } 557 558 if (db9_bidirectional[config[1]]) { 559 if (!(pp->modes & PARPORT_MODE_TRISTATE)) { 560 printk(KERN_ERR "db9.c: specified parport is not bidirectional\n"); 561 parport_put_port(pp); 562 return NULL; 563 } 564 } 565 566 if (!(db9 = kmalloc(sizeof(struct db9), GFP_KERNEL))) { 567 parport_put_port(pp); 568 return NULL; 569 } 570 memset(db9, 0, sizeof(struct db9)); 571 572 db9->mode = config[1]; 573 init_timer(&db9->timer); 574 db9->timer.data = (long) db9; 575 db9->timer.function = db9_timer; 576 577 db9->pd = parport_register_device(pp, "db9", NULL, NULL, NULL, PARPORT_DEV_EXCL, NULL); 578 parport_put_port(pp); 579 580 if (!db9->pd) { 581 printk(KERN_ERR "db9.c: parport busy already - lp.o loaded?\n"); 582 kfree(db9); 583 return NULL; 584 } 585 586 for (i = 0; i < (min(db9_max_pads[db9->mode], DB9_MAX_DEVICES)); i++) { 587 588 sprintf(db9->phys[i], "%s/input%d", db9->pd->port->name, i); 589 590 db9->dev[i].private = db9; 591 db9->dev[i].open = db9_open; 592 db9->dev[i].close = db9_close; 593 594 db9->dev[i].name = db9_name[db9->mode]; 595 db9->dev[i].phys = db9->phys[i]; 596 db9->dev[i].id.bustype = BUS_PARPORT; 597 db9->dev[i].id.vendor = 0x0002; 598 db9->dev[i].id.product = config[1]; 599 db9->dev[i].id.version = 0x0100; 600 601 db9->dev[i].evbit[0] = BIT(EV_KEY) | BIT(EV_ABS); 602 for (j = 0; j < db9_buttons[db9->mode]; j++) 603 set_bit(db9_btn[db9->mode][j], db9->dev[i].keybit); 604 for (j = 0; j < db9_num_axis[db9->mode]; j++) { 605 set_bit(db9_abs[j], db9->dev[i].absbit); 606 if (j < 2) { 607 db9->dev[i].absmin[db9_abs[j]] = -1; 608 db9->dev[i].absmax[db9_abs[j]] = 1; 609 } else { 610 db9->dev[i].absmin[db9_abs[j]] = 1; 611 db9->dev[i].absmax[db9_abs[j]] = 255; 612 db9->dev[i].absflat[db9_abs[j]] = 0; 613 } 614 } 615 input_register_device(db9->dev + i); 616 printk(KERN_INFO "input: %s on %s\n", db9->dev[i].name, db9->pd->port->name); 617 } 618 619 return db9; 620 } 621 622 static int __init db9_init(void) 623 { 624 db9_base[0] = db9_probe(db9, db9_nargs); 625 db9_base[1] = db9_probe(db9_2, db9_nargs_2); 626 db9_base[2] = db9_probe(db9_3, db9_nargs_3); 627 628 if (db9_base[0] || db9_base[1] || db9_base[2]) 629 return 0; 630 631 return -ENODEV; 632 } 633 634 static void __exit db9_exit(void) 635 { 636 int i, j; 637 638 for (i = 0; i < 3; i++) 639 if (db9_base[i]) { 640 for (j = 0; j < min(db9_max_pads[db9_base[i]->mode], DB9_MAX_DEVICES); j++) 641 input_unregister_device(db9_base[i]->dev + j); 642 parport_unregister_device(db9_base[i]->pd); 643 } 644 } 645 646 module_init(db9_init); 647 module_exit(db9_exit); 648