drivers/input/joystick/db9.c

   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 Sjövall
   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);