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         struct semaphore sem;
 102         char phys[2][32];
 103 };
 104
 105 static struct db9 *db9_base[3];
 106
 107 static short db9_multi_btn[] = { BTN_TRIGGER, BTN_THUMB };
 108 static short db9_genesis_btn[] = { BTN_START, BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, BTN_MODE };
 109 static short db9_cd32_btn[] = { BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, BTN_TL, BTN_TR, BTN_START };
 110
 111 static char db9_buttons[DB9_MAX_PAD] = { 0, 1, 2, 4, 0, 6, 8, 9, 1, 1, 7, 9, 9 };
 112 static short *db9_btn[DB9_MAX_PAD] = { NULL, db9_multi_btn, db9_multi_btn, db9_genesis_btn, NULL, db9_genesis_btn,
 113                                         db9_genesis_btn, db9_cd32_btn, db9_multi_btn, db9_multi_btn, db9_cd32_btn,
 114                                         db9_cd32_btn, db9_cd32_btn };
 115 static char *db9_name[DB9_MAX_PAD] = { NULL, "Multisystem joystick", "Multisystem joystick (2 fire)", "Genesis pad",
 116                                       NULL, "Genesis 5 pad", "Genesis 6 pad", "Saturn pad", "Multisystem (0.8.0.2) joystick",
 117                                      "Multisystem (0.8.0.2-dual) joystick", "Amiga CD-32 pad", "Saturn dpp", "Saturn dpp dual" };
 118
 119 static const int db9_max_pads[DB9_MAX_PAD] = { 0, 1, 1, 1, 0, 1, 1, 6, 1, 2, 1, 6, 12 };
 120 static const int db9_num_axis[DB9_MAX_PAD] = { 0, 2, 2, 2, 0, 2, 2, 7, 2, 2, 2 ,7, 7 };
 121 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 };
 122 static const int db9_bidirectional[DB9_MAX_PAD] = { 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 0, 0 };
 123 static const int db9_reverse[DB9_MAX_PAD] = { 0, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 0, 0 };
 124
 125 /*
 126  * Saturn controllers
 127  */
 128 #define DB9_SATURN_DELAY 300
 129 static const int db9_saturn_byte[] = { 1, 1, 1, 2, 2, 2, 2, 2, 1 };
 130 static const unsigned char db9_saturn_mask[] = { 0x04, 0x01, 0x02, 0x40, 0x20, 0x10, 0x08, 0x80, 0x08 };
 131
 132 /*
 133  * db9_saturn_write_sub() writes 2 bit data.
 134  */
 135 static void db9_saturn_write_sub(struct parport *port, int type, unsigned char data, int powered, int pwr_sub)
 136 {
 137         unsigned char c;
 138
 139         switch (type) {
 140         case 1: /* DPP1 */
 141                 c = 0x80 | 0x30 | (powered ? 0x08 : 0) | (pwr_sub ? 0x04 : 0) | data;
 142                 parport_write_data(port, c);
 143                 break;
 144         case 2: /* DPP2 */
 145                 c = 0x40 | data << 4 | (powered ? 0x08 : 0) | (pwr_sub ? 0x04 : 0) | 0x03;
 146                 parport_write_data(port, c);
 147                 break;
 148         case 0: /* DB9 */
 149                 c = ((((data & 2) ? 2 : 0) | ((data & 1) ? 4 : 0)) ^ 0x02) | !powered;
 150                 parport_write_control(port, c);
 151                 break;
 152         }
 153 }
 154
 155 /*
 156  * gc_saturn_read_sub() reads 4 bit data.
 157  */
 158 static unsigned char db9_saturn_read_sub(struct parport *port, int type)
 159 {
 160         unsigned char data;
 161
 162         if (type) {
 163                 /* DPP */
 164                 data = parport_read_status(port) ^ 0x80;
 165                 return (data & 0x80 ? 1 : 0) | (data & 0x40 ? 2 : 0)
 166                      | (data & 0x20 ? 4 : 0) | (data & 0x10 ? 8 : 0);
 167         } else {
 168                 /* DB9 */
 169                 data = parport_read_data(port) & 0x0f;
 170                 return (data & 0x8 ? 1 : 0) | (data & 0x4 ? 2 : 0)
 171                      | (data & 0x2 ? 4 : 0) | (data & 0x1 ? 8 : 0);
 172         }
 173 }
 174
 175 /*
 176  * db9_saturn_read_analog() sends clock and reads 8 bit data.
 177  */
 178 static unsigned char db9_saturn_read_analog(struct parport *port, int type, int powered)
 179 {
 180         unsigned char data;
 181
 182         db9_saturn_write_sub(port, type, 0, powered, 0);
 183         udelay(DB9_SATURN_DELAY);
 184         data = db9_saturn_read_sub(port, type) << 4;
 185         db9_saturn_write_sub(port, type, 2, powered, 0);
 186         udelay(DB9_SATURN_DELAY);
 187         data |= db9_saturn_read_sub(port, type);
 188         return data;
 189 }
 190
 191 /*
 192  * db9_saturn_read_packet() reads whole saturn packet at connector
 193  * and returns device identifier code.
 194  */
 195 static unsigned char db9_saturn_read_packet(struct parport *port, unsigned char *data, int type, int powered)
 196 {
 197         int i, j;
 198         unsigned char tmp;
 199
 200         db9_saturn_write_sub(port, type, 3, powered, 0);
 201         data[0] = db9_saturn_read_sub(port, type);
 202         switch (data[0] & 0x0f) {
 203         case 0xf:
 204                 /* 1111  no pad */
 205                 return data[0] = 0xff;
 206         case 0x4: case 0x4 | 0x8:
 207                 /* ?100 : digital controller */
 208                 db9_saturn_write_sub(port, type, 0, powered, 1);
 209                 data[2] = db9_saturn_read_sub(port, type) << 4;
 210                 db9_saturn_write_sub(port, type, 2, powered, 1);
 211                 data[1] = db9_saturn_read_sub(port, type) << 4;
 212                 db9_saturn_write_sub(port, type, 1, powered, 1);
 213                 data[1] |= db9_saturn_read_sub(port, type);
 214                 db9_saturn_write_sub(port, type, 3, powered, 1);
 215                 /* data[2] |= db9_saturn_read_sub(port, type); */
 216                 data[2] |= data[0];
 217                 return data[0] = 0x02;
 218         case 0x1:
 219                 /* 0001 : analog controller or multitap */
 220                 db9_saturn_write_sub(port, type, 2, powered, 0);
 221                 udelay(DB9_SATURN_DELAY);
 222                 data[0] = db9_saturn_read_analog(port, type, powered);
 223                 if (data[0] != 0x41) {
 224                         /* read analog controller */
 225                         for (i = 0; i < (data[0] & 0x0f); i++)
 226                                 data[i + 1] = db9_saturn_read_analog(port, type, powered);
 227                         db9_saturn_write_sub(port, type, 3, powered, 0);
 228                         return data[0];
 229                 } else {
 230                         /* read multitap */
 231                         if (db9_saturn_read_analog(port, type, powered) != 0x60)
 232                                 return data[0] = 0xff;
 233                         for (i = 0; i < 60; i += 10) {
 234                                 data[i] = db9_saturn_read_analog(port, type, powered);
 235                                 if (data[i] != 0xff)
 236                                         /* read each pad */
 237                                         for (j = 0; j < (data[i] & 0x0f); j++)
 238                                                 data[i + j + 1] = db9_saturn_read_analog(port, type, powered);
 239                         }
 240                         db9_saturn_write_sub(port, type, 3, powered, 0);
 241                         return 0x41;
 242                 }
 243         case 0x0:
 244                 /* 0000 : mouse */
 245                 db9_saturn_write_sub(port, type, 2, powered, 0);
 246                 udelay(DB9_SATURN_DELAY);
 247                 tmp = db9_saturn_read_analog(port, type, powered);
 248                 if (tmp == 0xff) {
 249                         for (i = 0; i < 3; i++)
 250                                 data[i + 1] = db9_saturn_read_analog(port, type, powered);
 251                         db9_saturn_write_sub(port, type, 3, powered, 0);
 252                         return data[0] = 0xe3;
 253                 }
 254         default:
 255                 return data[0];
 256         }
 257 }
 258
 259 /*
 260  * db9_saturn_report() analyzes packet and reports.
 261  */
 262 static int db9_saturn_report(unsigned char id, unsigned char data[60], struct input_dev *dev, int n, int max_pads)
 263 {
 264         int tmp, i, j;
 265
 266         tmp = (id == 0x41) ? 60 : 10;
 267         for (j = 0; (j < tmp) && (n < max_pads); j += 10, n++) {
 268                 switch (data[j]) {
 269                 case 0x16: /* multi controller (analog 4 axis) */
 270                         input_report_abs(dev + n, db9_abs[5], data[j + 6]);
 271                 case 0x15: /* mission stick (analog 3 axis) */
 272                         input_report_abs(dev + n, db9_abs[3], data[j + 4]);
 273                         input_report_abs(dev + n, db9_abs[4], data[j + 5]);
 274                 case 0x13: /* racing controller (analog 1 axis) */
 275                         input_report_abs(dev + n, db9_abs[2], data[j + 3]);
 276                 case 0x34: /* saturn keyboard (udlr ZXC ASD QE Esc) */
 277                 case 0x02: /* digital pad (digital 2 axis + buttons) */
 278                         input_report_abs(dev + n, db9_abs[0], !(data[j + 1] & 128) - !(data[j + 1] & 64));
 279                         input_report_abs(dev + n, db9_abs[1], !(data[j + 1] & 32) - !(data[j + 1] & 16));
 280                         for (i = 0; i < 9; i++)
 281                                 input_report_key(dev + n, db9_cd32_btn[i], ~data[j + db9_saturn_byte[i]] & db9_saturn_mask[i]);
 282                         break;
 283                 case 0x19: /* mission stick x2 (analog 6 axis + buttons) */
 284                         input_report_abs(dev + n, db9_abs[0], !(data[j + 1] & 128) - !(data[j + 1] & 64));
 285                         input_report_abs(dev + n, db9_abs[1], !(data[j + 1] & 32) - !(data[j + 1] & 16));
 286                         for (i = 0; i < 9; i++)
 287                                 input_report_key(dev + n, db9_cd32_btn[i], ~data[j + db9_saturn_byte[i]] & db9_saturn_mask[i]);
 288                         input_report_abs(dev + n, db9_abs[2], data[j + 3]);
 289                         input_report_abs(dev + n, db9_abs[3], data[j + 4]);
 290                         input_report_abs(dev + n, db9_abs[4], data[j + 5]);
 291                         /*
 292                         input_report_abs(dev + n, db9_abs[8], (data[j + 6] & 128 ? 0 : 1) - (data[j + 6] & 64 ? 0 : 1));
 293                         input_report_abs(dev + n, db9_abs[9], (data[j + 6] & 32 ? 0 : 1) - (data[j + 6] & 16 ? 0 : 1));
 294                         */
 295                         input_report_abs(dev + n, db9_abs[6], data[j + 7]);
 296                         input_report_abs(dev + n, db9_abs[7], data[j + 8]);
 297                         input_report_abs(dev + n, db9_abs[5], data[j + 9]);
 298                         break;
 299                 case 0xd3: /* sankyo ff (analog 1 axis + stop btn) */
 300                         input_report_key(dev + n, BTN_A, data[j + 3] & 0x80);
 301                         input_report_abs(dev + n, db9_abs[2], data[j + 3] & 0x7f);
 302                         break;
 303                 case 0xe3: /* shuttle mouse (analog 2 axis + buttons. signed value) */
 304                         input_report_key(dev + n, BTN_START, data[j + 1] & 0x08);
 305                         input_report_key(dev + n, BTN_A, data[j + 1] & 0x04);
 306                         input_report_key(dev + n, BTN_C, data[j + 1] & 0x02);
 307                         input_report_key(dev + n, BTN_B, data[j + 1] & 0x01);
 308                         input_report_abs(dev + n, db9_abs[2], data[j + 2] ^ 0x80);
 309                         input_report_abs(dev + n, db9_abs[3], (0xff-(data[j + 3] ^ 0x80))+1); /* */
 310                         break;
 311                 case 0xff:
 312                 default: /* no pad */
 313                         input_report_abs(dev + n, db9_abs[0], 0);
 314                         input_report_abs(dev + n, db9_abs[1], 0);
 315                         for (i = 0; i < 9; i++)
 316                                 input_report_key(dev + n, db9_cd32_btn[i], 0);
 317                         break;
 318                 }
 319         }
 320         return n;
 321 }
 322
 323 static int db9_saturn(int mode, struct parport *port, struct input_dev *dev)
 324 {
 325         unsigned char id, data[60];
 326         int type, n, max_pads;
 327         int tmp, i;
 328
 329         switch (mode) {
 330         case DB9_SATURN_PAD:
 331                 type = 0;
 332                 n = 1;
 333                 break;
 334         case DB9_SATURN_DPP:
 335                 type = 1;
 336                 n = 1;
 337                 break;
 338         case DB9_SATURN_DPP_2:
 339                 type = 1;
 340                 n = 2;
 341                 break;
 342         default:
 343                 return -1;
 344         }
 345         max_pads = min(db9_max_pads[mode], DB9_MAX_DEVICES);
 346         for (tmp = 0, i = 0; i < n; i++) {
 347                 id = db9_saturn_read_packet(port, data, type + i, 1);
 348                 tmp = db9_saturn_report(id, data, dev, tmp, max_pads);
 349         }
 350         return 0;
 351 }
 352
 353 static void db9_timer(unsigned long private)
 354 {
 355         struct db9 *db9 = (void *) private;
 356         struct parport *port = db9->pd->port;
 357         struct input_dev *dev = db9->dev;
 358         int data, i;
 359
 360         switch(db9->mode) {
 361                 case DB9_MULTI_0802_2:
 362
 363                         data = parport_read_data(port) >> 3;
 364
 365                         input_report_abs(dev + 1, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1));
 366                         input_report_abs(dev + 1, ABS_Y, (data & DB9_DOWN  ? 0 : 1) - (data & DB9_UP   ? 0 : 1));
 367                         input_report_key(dev + 1, BTN_TRIGGER, ~data & DB9_FIRE1);
 368
 369                 case DB9_MULTI_0802:
 370
 371                         data = parport_read_status(port) >> 3;
 372
 373                         input_report_abs(dev, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1));
 374                         input_report_abs(dev, ABS_Y, (data & DB9_DOWN  ? 0 : 1) - (data & DB9_UP   ? 0 : 1));
 375                         input_report_key(dev, BTN_TRIGGER, data & DB9_FIRE1);
 376                         break;
 377
 378                 case DB9_MULTI_STICK:
 379
 380                         data = parport_read_data(port);
 381
 382                         input_report_abs(dev, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1));
 383                         input_report_abs(dev, ABS_Y, (data & DB9_DOWN  ? 0 : 1) - (data & DB9_UP   ? 0 : 1));
 384                         input_report_key(dev, BTN_TRIGGER, ~data & DB9_FIRE1);
 385                         break;
 386
 387                 case DB9_MULTI2_STICK:
 388
 389                         data = parport_read_data(port);
 390
 391                         input_report_abs(dev, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1));
 392                         input_report_abs(dev, ABS_Y, (data & DB9_DOWN  ? 0 : 1) - (data & DB9_UP   ? 0 : 1));
 393                         input_report_key(dev, BTN_TRIGGER, ~data & DB9_FIRE1);
 394                         input_report_key(dev, BTN_THUMB,   ~data & DB9_FIRE2);
 395                         break;
 396
 397                 case DB9_GENESIS_PAD:
 398
 399                         parport_write_control(port, DB9_NOSELECT);
 400                         data = parport_read_data(port);
 401
 402                         input_report_abs(dev, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1));
 403                         input_report_abs(dev, ABS_Y, (data & DB9_DOWN  ? 0 : 1) - (data & DB9_UP   ? 0 : 1));
 404                         input_report_key(dev, BTN_B, ~data & DB9_FIRE1);
 405                         input_report_key(dev, BTN_C, ~data & DB9_FIRE2);
 406
 407                         parport_write_control(port, DB9_NORMAL);
 408                         data=parport_read_data(port);
 409
 410                         input_report_key(dev, BTN_A,     ~data & DB9_FIRE1);
 411                         input_report_key(dev, BTN_START, ~data & DB9_FIRE2);
 412                         break;
 413
 414                 case DB9_GENESIS5_PAD:
 415
 416                         parport_write_control(port, DB9_NOSELECT);
 417                         data=parport_read_data(port);
 418
 419                         input_report_abs(dev, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1));
 420                         input_report_abs(dev, ABS_Y, (data & DB9_DOWN  ? 0 : 1) - (data & DB9_UP   ? 0 : 1));
 421                         input_report_key(dev, BTN_B, ~data & DB9_FIRE1);
 422                         input_report_key(dev, BTN_C, ~data & DB9_FIRE2);
 423
 424                         parport_write_control(port, DB9_NORMAL);
 425                         data=parport_read_data(port);
 426
 427                         input_report_key(dev, BTN_A,     ~data & DB9_FIRE1);
 428                         input_report_key(dev, BTN_X,     ~data & DB9_FIRE2);
 429                         input_report_key(dev, BTN_Y,     ~data & DB9_LEFT);
 430                         input_report_key(dev, BTN_START, ~data & DB9_RIGHT);
 431                         break;
 432
 433                 case DB9_GENESIS6_PAD:
 434
 435                         parport_write_control(port, DB9_NOSELECT); /* 1 */
 436                         udelay(DB9_GENESIS6_DELAY);
 437                         data=parport_read_data(port);
 438
 439                         input_report_abs(dev, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1));
 440                         input_report_abs(dev, ABS_Y, (data & DB9_DOWN  ? 0 : 1) - (data & DB9_UP   ? 0 : 1));
 441                         input_report_key(dev, BTN_B, ~data & DB9_FIRE1);
 442                         input_report_key(dev, BTN_C, ~data & DB9_FIRE2);
 443
 444                         parport_write_control(port, DB9_NORMAL);
 445                         udelay(DB9_GENESIS6_DELAY);
 446                         data=parport_read_data(port);
 447
 448                         input_report_key(dev, BTN_A, ~data & DB9_FIRE1);
 449                         input_report_key(dev, BTN_START, ~data & DB9_FIRE2);
 450
 451                         parport_write_control(port, DB9_NOSELECT); /* 2 */
 452                         udelay(DB9_GENESIS6_DELAY);
 453                         parport_write_control(port, DB9_NORMAL);
 454                         udelay(DB9_GENESIS6_DELAY);
 455                         parport_write_control(port, DB9_NOSELECT); /* 3 */
 456                         udelay(DB9_GENESIS6_DELAY);
 457                         data=parport_read_data(port);
 458
 459                         input_report_key(dev, BTN_X,    ~data & DB9_LEFT);
 460                         input_report_key(dev, BTN_Y,    ~data & DB9_DOWN);
 461                         input_report_key(dev, BTN_Z,    ~data & DB9_UP);
 462                         input_report_key(dev, BTN_MODE, ~data & DB9_RIGHT);
 463
 464                         parport_write_control(port, DB9_NORMAL);
 465                         udelay(DB9_GENESIS6_DELAY);
 466                         parport_write_control(port, DB9_NOSELECT); /* 4 */
 467                         udelay(DB9_GENESIS6_DELAY);
 468                         parport_write_control(port, DB9_NORMAL);
 469                         break;
 470
 471                 case DB9_SATURN_PAD:
 472                 case DB9_SATURN_DPP:
 473                 case DB9_SATURN_DPP_2:
 474
 475                         db9_saturn(db9->mode, port, dev);
 476                         break;
 477
 478                 case DB9_CD32_PAD:
 479
 480                         data=parport_read_data(port);
 481
 482                         input_report_abs(dev, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1));
 483                         input_report_abs(dev, ABS_Y, (data & DB9_DOWN  ? 0 : 1) - (data & DB9_UP   ? 0 : 1));
 484
 485                         parport_write_control(port, 0x0a);
 486
 487                         for (i = 0; i < 7; i++) {
 488                                 data = parport_read_data(port);
 489                                 parport_write_control(port, 0x02);
 490                                 parport_write_control(port, 0x0a);
 491                                 input_report_key(dev, db9_cd32_btn[i], ~data & DB9_FIRE2);
 492                                 }
 493
 494                         parport_write_control(port, 0x00);
 495                         break;
 496                 }
 497
 498         input_sync(dev);
 499
 500         mod_timer(&db9->timer, jiffies + DB9_REFRESH_TIME);
 501 }
 502
 503 static int db9_open(struct input_dev *dev)
 504 {
 505         struct db9 *db9 = dev->private;
 506         struct parport *port = db9->pd->port;
 507         int err;
 508
 509         err = down_interruptible(&db9->sem);
 510         if (err)
 511                 return err;
 512
 513         if (!db9->used++) {
 514                 parport_claim(db9->pd);
 515                 parport_write_data(port, 0xff);
 516                 if (db9_reverse[db9->mode]) {
 517                         parport_data_reverse(port);
 518                         parport_write_control(port, DB9_NORMAL);
 519                 }
 520                 mod_timer(&db9->timer, jiffies + DB9_REFRESH_TIME);
 521         }
 522
 523         up(&db9->sem);
 524         return 0;
 525 }
 526
 527 static void db9_close(struct input_dev *dev)
 528 {
 529         struct db9 *db9 = dev->private;
 530         struct parport *port = db9->pd->port;
 531
 532         down(&db9->sem);
 533         if (!--db9->used) {
 534                 del_timer_sync(&db9->timer);
 535                 parport_write_control(port, 0x00);
 536                 parport_data_forward(port);
 537                 parport_release(db9->pd);
 538         }
 539         up(&db9->sem);
 540 }
 541
 542 static struct db9 __init *db9_probe(int *config, int nargs)
 543 {
 544         struct db9 *db9;
 545         struct parport *pp;
 546         int i, j;
 547
 548         if (config[0] < 0)
 549                 return NULL;
 550
 551         if (nargs < 2) {
 552                 printk(KERN_ERR "db9.c: Device type must be specified.\n");
 553                 return NULL;
 554         }
 555
 556         if (config[1] < 1 || config[1] >= DB9_MAX_PAD || !db9_buttons[config[1]]) {
 557                 printk(KERN_ERR "db9.c: bad config\n");
 558                 return NULL;
 559         }
 560
 561         pp = parport_find_number(config[0]);
 562         if (!pp) {
 563                 printk(KERN_ERR "db9.c: no such parport\n");
 564                 return NULL;
 565         }
 566
 567         if (db9_bidirectional[config[1]]) {
 568                 if (!(pp->modes & PARPORT_MODE_TRISTATE)) {
 569                         printk(KERN_ERR "db9.c: specified parport is not bidirectional\n");
 570                         parport_put_port(pp);
 571                         return NULL;
 572                 }
 573         }
 574
 575         if (!(db9 = kzalloc(sizeof(struct db9), GFP_KERNEL))) {
 576                 parport_put_port(pp);
 577                 return NULL;
 578         }
 579
 580         init_MUTEX(&db9->sem);
 581         db9->mode = config[1];
 582         init_timer(&db9->timer);
 583         db9->timer.data = (long) db9;
 584         db9->timer.function = db9_timer;
 585
 586         db9->pd = parport_register_device(pp, "db9", NULL, NULL, NULL, PARPORT_DEV_EXCL, NULL);
 587         parport_put_port(pp);
 588
 589         if (!db9->pd) {
 590                 printk(KERN_ERR "db9.c: parport busy already - lp.o loaded?\n");
 591                 kfree(db9);
 592                 return NULL;
 593         }
 594
 595         for (i = 0; i < (min(db9_max_pads[db9->mode], DB9_MAX_DEVICES)); i++) {
 596
 597                 sprintf(db9->phys[i], "%s/input%d", db9->pd->port->name, i);
 598
 599                 db9->dev[i].private = db9;
 600                 db9->dev[i].open = db9_open;
 601                 db9->dev[i].close = db9_close;
 602
 603                 db9->dev[i].name = db9_name[db9->mode];
 604                 db9->dev[i].phys = db9->phys[i];
 605                 db9->dev[i].id.bustype = BUS_PARPORT;
 606                 db9->dev[i].id.vendor = 0x0002;
 607                 db9->dev[i].id.product = config[1];
 608                 db9->dev[i].id.version = 0x0100;
 609
 610                 db9->dev[i].evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
 611                 for (j = 0; j < db9_buttons[db9->mode]; j++)
 612                         set_bit(db9_btn[db9->mode][j], db9->dev[i].keybit);
 613                 for (j = 0; j < db9_num_axis[db9->mode]; j++) {
 614                         set_bit(db9_abs[j], db9->dev[i].absbit);
 615                         if (j < 2) {
 616                                 db9->dev[i].absmin[db9_abs[j]] = -1;
 617                                 db9->dev[i].absmax[db9_abs[j]] = 1;
 618                         } else {
 619                                 db9->dev[i].absmin[db9_abs[j]] = 1;
 620                                 db9->dev[i].absmax[db9_abs[j]] = 255;
 621                                 db9->dev[i].absflat[db9_abs[j]] = 0;
 622                         }
 623                 }
 624                 input_register_device(db9->dev + i);
 625                 printk(KERN_INFO "input: %s on %s\n", db9->dev[i].name, db9->pd->port->name);
 626         }
 627
 628         return db9;
 629 }
 630
 631 static int __init db9_init(void)
 632 {
 633         db9_base[0] = db9_probe(db9, db9_nargs);
 634         db9_base[1] = db9_probe(db9_2, db9_nargs_2);
 635         db9_base[2] = db9_probe(db9_3, db9_nargs_3);
 636
 637         if (db9_base[0] || db9_base[1] || db9_base[2])
 638                 return 0;
 639
 640         return -ENODEV;
 641 }
 642
 643 static void __exit db9_exit(void)
 644 {
 645         int i, j;
 646
 647         for (i = 0; i < 3; i++)
 648                 if (db9_base[i]) {
 649                         for (j = 0; j < min(db9_max_pads[db9_base[i]->mode], DB9_MAX_DEVICES); j++)
 650                                 input_unregister_device(db9_base[i]->dev + j);
 651                 parport_unregister_device(db9_base[i]->pd);
 652         }
 653 }
 654
 655 module_init(db9_init);
 656 module_exit(db9_exit);