drivers/macintosh/adbhid.c

   1 /*
   2  * drivers/macintosh/adbhid.c
   3  *
   4  * ADB HID driver for Power Macintosh computers.
   5  *
   6  * Adapted from drivers/macintosh/mac_keyb.c by Franz Sirl.
   7  * drivers/macintosh/mac_keyb.c was Copyright (C) 1996 Paul Mackerras
   8  * with considerable contributions from Ben Herrenschmidt and others.
   9  *
  10  * Copyright (C) 2000 Franz Sirl.
  11  *
  12  * Adapted to ADB changes and support for more devices by
  13  * Benjamin Herrenschmidt. Adapted from code in MkLinux
  14  * and reworked.
  15  *
  16  * Supported devices:
  17  *
  18  * - Standard 1 button mouse
  19  * - All standard Apple Extended protocol (handler ID 4)
  20  * - mouseman and trackman mice & trackballs
  21  * - PowerBook Trackpad (default setup: enable tapping)
  22  * - MicroSpeed mouse & trackball (needs testing)
  23  * - CH Products Trackball Pro (needs testing)
  24  * - Contour Design (Contour Mouse)
  25  * - Hunter digital (NoHandsMouse)
  26  * - Kensignton TurboMouse 5 (needs testing)
  27  * - Mouse Systems A3 mice and trackballs <aidan@kublai.com>
  28  * - MacAlly 2-buttons mouse (needs testing) <pochini@denise.shiny.it>
  29  *
  30  * To do:
  31  *
  32  * Improve Kensington support.
  33  * Split mouse/kbd
  34  * Move to syfs
  35  */
  36
  37 #include <linux/module.h>
  38 #include <linux/slab.h>
  39 #include <linux/init.h>
  40 #include <linux/notifier.h>
  41 #include <linux/input.h>
  42
  43 #include <linux/adb.h>
  44 #include <linux/cuda.h>
  45 #include <linux/pmu.h>
  46
  47 #include <asm/machdep.h>
  48 #ifdef CONFIG_PPC_PMAC
  49 #include <asm/backlight.h>
  50 #include <asm/pmac_feature.h>
  51 #endif
  52
  53 MODULE_AUTHOR("Franz Sirl <Franz.Sirl-kernel@lauterbach.com>");
  54
  55 static int restore_capslock_events;
  56 module_param(restore_capslock_events, int, 0644);
  57 MODULE_PARM_DESC(restore_capslock_events,
  58         "Produce keypress events for capslock on both keyup and keydown.");
  59
  60 #define KEYB_KEYREG     0       /* register # for key up/down data */
  61 #define KEYB_LEDREG     2       /* register # for leds on ADB keyboard */
  62 #define MOUSE_DATAREG   0       /* reg# for movement/button codes from mouse */
  63
  64 static int adb_message_handler(struct notifier_block *, unsigned long, void *);
  65 static struct notifier_block adbhid_adb_notifier = {
  66         .notifier_call  = adb_message_handler,
  67 };
  68
  69 /* Some special keys */
  70 #define ADB_KEY_DEL             0x33
  71 #define ADB_KEY_CMD             0x37
  72 #define ADB_KEY_CAPSLOCK        0x39
  73 #define ADB_KEY_FN              0x3f
  74 #define ADB_KEY_FWDEL           0x75
  75 #define ADB_KEY_POWER_OLD       0x7e
  76 #define ADB_KEY_POWER           0x7f
  77
  78 u16 adb_to_linux_keycodes[128] = {
  79         /* 0x00 */ KEY_A,               /*  30 */
  80         /* 0x01 */ KEY_S,               /*  31 */
  81         /* 0x02 */ KEY_D,               /*  32 */
  82         /* 0x03 */ KEY_F,               /*  33 */
  83         /* 0x04 */ KEY_H,               /*  35 */
  84         /* 0x05 */ KEY_G,               /*  34 */
  85         /* 0x06 */ KEY_Z,               /*  44 */
  86         /* 0x07 */ KEY_X,               /*  45 */
  87         /* 0x08 */ KEY_C,               /*  46 */
  88         /* 0x09 */ KEY_V,               /*  47 */
  89         /* 0x0a */ KEY_102ND,           /*  86 */
  90         /* 0x0b */ KEY_B,               /*  48 */
  91         /* 0x0c */ KEY_Q,               /*  16 */
  92         /* 0x0d */ KEY_W,               /*  17 */
  93         /* 0x0e */ KEY_E,               /*  18 */
  94         /* 0x0f */ KEY_R,               /*  19 */
  95         /* 0x10 */ KEY_Y,               /*  21 */
  96         /* 0x11 */ KEY_T,               /*  20 */
  97         /* 0x12 */ KEY_1,               /*   2 */
  98         /* 0x13 */ KEY_2,               /*   3 */
  99         /* 0x14 */ KEY_3,               /*   4 */
 100         /* 0x15 */ KEY_4,               /*   5 */
 101         /* 0x16 */ KEY_6,               /*   7 */
 102         /* 0x17 */ KEY_5,               /*   6 */
 103         /* 0x18 */ KEY_EQUAL,           /*  13 */
 104         /* 0x19 */ KEY_9,               /*  10 */
 105         /* 0x1a */ KEY_7,               /*   8 */
 106         /* 0x1b */ KEY_MINUS,           /*  12 */
 107         /* 0x1c */ KEY_8,               /*   9 */
 108         /* 0x1d */ KEY_0,               /*  11 */
 109         /* 0x1e */ KEY_RIGHTBRACE,      /*  27 */
 110         /* 0x1f */ KEY_O,               /*  24 */
 111         /* 0x20 */ KEY_U,               /*  22 */
 112         /* 0x21 */ KEY_LEFTBRACE,       /*  26 */
 113         /* 0x22 */ KEY_I,               /*  23 */
 114         /* 0x23 */ KEY_P,               /*  25 */
 115         /* 0x24 */ KEY_ENTER,           /*  28 */
 116         /* 0x25 */ KEY_L,               /*  38 */
 117         /* 0x26 */ KEY_J,               /*  36 */
 118         /* 0x27 */ KEY_APOSTROPHE,      /*  40 */
 119         /* 0x28 */ KEY_K,               /*  37 */
 120         /* 0x29 */ KEY_SEMICOLON,       /*  39 */
 121         /* 0x2a */ KEY_BACKSLASH,       /*  43 */
 122         /* 0x2b */ KEY_COMMA,           /*  51 */
 123         /* 0x2c */ KEY_SLASH,           /*  53 */
 124         /* 0x2d */ KEY_N,               /*  49 */
 125         /* 0x2e */ KEY_M,               /*  50 */
 126         /* 0x2f */ KEY_DOT,             /*  52 */
 127         /* 0x30 */ KEY_TAB,             /*  15 */
 128         /* 0x31 */ KEY_SPACE,           /*  57 */
 129         /* 0x32 */ KEY_GRAVE,           /*  41 */
 130         /* 0x33 */ KEY_BACKSPACE,       /*  14 */
 131         /* 0x34 */ KEY_KPENTER,         /*  96 */
 132         /* 0x35 */ KEY_ESC,             /*   1 */
 133         /* 0x36 */ KEY_LEFTCTRL,        /*  29 */
 134         /* 0x37 */ KEY_LEFTMETA,        /* 125 */
 135         /* 0x38 */ KEY_LEFTSHIFT,       /*  42 */
 136         /* 0x39 */ KEY_CAPSLOCK,        /*  58 */
 137         /* 0x3a */ KEY_LEFTALT,         /*  56 */
 138         /* 0x3b */ KEY_LEFT,            /* 105 */
 139         /* 0x3c */ KEY_RIGHT,           /* 106 */
 140         /* 0x3d */ KEY_DOWN,            /* 108 */
 141         /* 0x3e */ KEY_UP,              /* 103 */
 142         /* 0x3f */ KEY_FN,              /* 0x1d0 */
 143         /* 0x40 */ 0,
 144         /* 0x41 */ KEY_KPDOT,           /*  83 */
 145         /* 0x42 */ 0,
 146         /* 0x43 */ KEY_KPASTERISK,      /*  55 */
 147         /* 0x44 */ 0,
 148         /* 0x45 */ KEY_KPPLUS,          /*  78 */
 149         /* 0x46 */ 0,
 150         /* 0x47 */ KEY_NUMLOCK,         /*  69 */
 151         /* 0x48 */ 0,
 152         /* 0x49 */ 0,
 153         /* 0x4a */ 0,
 154         /* 0x4b */ KEY_KPSLASH,         /*  98 */
 155         /* 0x4c */ KEY_KPENTER,         /*  96 */
 156         /* 0x4d */ 0,
 157         /* 0x4e */ KEY_KPMINUS,         /*  74 */
 158         /* 0x4f */ 0,
 159         /* 0x50 */ 0,
 160         /* 0x51 */ KEY_KPEQUAL,         /* 117 */
 161         /* 0x52 */ KEY_KP0,             /*  82 */
 162         /* 0x53 */ KEY_KP1,             /*  79 */
 163         /* 0x54 */ KEY_KP2,             /*  80 */
 164         /* 0x55 */ KEY_KP3,             /*  81 */
 165         /* 0x56 */ KEY_KP4,             /*  75 */
 166         /* 0x57 */ KEY_KP5,             /*  76 */
 167         /* 0x58 */ KEY_KP6,             /*  77 */
 168         /* 0x59 */ KEY_KP7,             /*  71 */
 169         /* 0x5a */ 0,
 170         /* 0x5b */ KEY_KP8,             /*  72 */
 171         /* 0x5c */ KEY_KP9,             /*  73 */
 172         /* 0x5d */ KEY_YEN,             /* 124 */
 173         /* 0x5e */ KEY_RO,              /*  89 */
 174         /* 0x5f */ KEY_KPCOMMA,         /* 121 */
 175         /* 0x60 */ KEY_F5,              /*  63 */
 176         /* 0x61 */ KEY_F6,              /*  64 */
 177         /* 0x62 */ KEY_F7,              /*  65 */
 178         /* 0x63 */ KEY_F3,              /*  61 */
 179         /* 0x64 */ KEY_F8,              /*  66 */
 180         /* 0x65 */ KEY_F9,              /*  67 */
 181         /* 0x66 */ KEY_HANJA,           /* 123 */
 182         /* 0x67 */ KEY_F11,             /*  87 */
 183         /* 0x68 */ KEY_HANGEUL,         /* 122 */
 184         /* 0x69 */ KEY_SYSRQ,           /*  99 */
 185         /* 0x6a */ 0,
 186         /* 0x6b */ KEY_SCROLLLOCK,      /*  70 */
 187         /* 0x6c */ 0,
 188         /* 0x6d */ KEY_F10,             /*  68 */
 189         /* 0x6e */ KEY_COMPOSE,         /* 127 */
 190         /* 0x6f */ KEY_F12,             /*  88 */
 191         /* 0x70 */ 0,
 192         /* 0x71 */ KEY_PAUSE,           /* 119 */
 193         /* 0x72 */ KEY_INSERT,          /* 110 */
 194         /* 0x73 */ KEY_HOME,            /* 102 */
 195         /* 0x74 */ KEY_PAGEUP,          /* 104 */
 196         /* 0x75 */ KEY_DELETE,          /* 111 */
 197         /* 0x76 */ KEY_F4,              /*  62 */
 198         /* 0x77 */ KEY_END,             /* 107 */
 199         /* 0x78 */ KEY_F2,              /*  60 */
 200         /* 0x79 */ KEY_PAGEDOWN,        /* 109 */
 201         /* 0x7a */ KEY_F1,              /*  59 */
 202         /* 0x7b */ KEY_RIGHTSHIFT,      /*  54 */
 203         /* 0x7c */ KEY_RIGHTALT,        /* 100 */
 204         /* 0x7d */ KEY_RIGHTCTRL,       /*  97 */
 205         /* 0x7e */ KEY_RIGHTMETA,       /* 126 */
 206         /* 0x7f */ KEY_POWER,           /* 116 */
 207 };
 208
 209 struct adbhid {
 210         struct input_dev *input;
 211         int id;
 212         int default_id;
 213         int original_handler_id;
 214         int current_handler_id;
 215         int mouse_kind;
 216         u16 *keycode;
 217         char name[64];
 218         char phys[32];
 219         int flags;
 220 };
 221
 222 #define FLAG_FN_KEY_PRESSED             0x00000001
 223 #define FLAG_POWER_FROM_FN              0x00000002
 224 #define FLAG_EMU_FWDEL_DOWN             0x00000004
 225 #define FLAG_CAPSLOCK_TRANSLATE         0x00000008
 226 #define FLAG_CAPSLOCK_DOWN              0x00000010
 227 #define FLAG_CAPSLOCK_IGNORE_NEXT       0x00000020
 228
 229 static struct adbhid *adbhid[16];
 230
 231 static void adbhid_probe(void);
 232
 233 static void adbhid_input_keycode(int, int, int);
 234
 235 static void init_trackpad(int id);
 236 static void init_trackball(int id);
 237 static void init_turbomouse(int id);
 238 static void init_microspeed(int id);
 239 static void init_ms_a3(int id);
 240
 241 static struct adb_ids keyboard_ids;
 242 static struct adb_ids mouse_ids;
 243 static struct adb_ids buttons_ids;
 244
 245 /* Kind of keyboard, see Apple technote 1152  */
 246 #define ADB_KEYBOARD_UNKNOWN    0
 247 #define ADB_KEYBOARD_ANSI       0x0100
 248 #define ADB_KEYBOARD_ISO        0x0200
 249 #define ADB_KEYBOARD_JIS        0x0300
 250
 251 /* Kind of mouse  */
 252 #define ADBMOUSE_STANDARD_100   0       /* Standard 100cpi mouse (handler 1) */
 253 #define ADBMOUSE_STANDARD_200   1       /* Standard 200cpi mouse (handler 2) */
 254 #define ADBMOUSE_EXTENDED       2       /* Apple Extended mouse (handler 4) */
 255 #define ADBMOUSE_TRACKBALL      3       /* TrackBall (handler 4) */
 256 #define ADBMOUSE_TRACKPAD       4       /* Apple's PowerBook trackpad (handler 4) */
 257 #define ADBMOUSE_TURBOMOUSE5    5       /* Turbomouse 5 (previously req. mousehack) */
 258 #define ADBMOUSE_MICROSPEED     6       /* Microspeed mouse (&trackball ?), MacPoint */
 259 #define ADBMOUSE_TRACKBALLPRO   7       /* Trackball Pro (special buttons) */
 260 #define ADBMOUSE_MS_A3          8       /* Mouse systems A3 trackball (handler 3) */
 261 #define ADBMOUSE_MACALLY2       9       /* MacAlly 2-button mouse */
 262
 263 static void
 264 adbhid_keyboard_input(unsigned char *data, int nb, int apoll)
 265 {
 266         int id = (data[0] >> 4) & 0x0f;
 267
 268         if (!adbhid[id]) {
 269                 printk(KERN_ERR "ADB HID on ID %d not yet registered, packet %#02x, %#02x, %#02x, %#02x\n",
 270                        id, data[0], data[1], data[2], data[3]);
 271                 return;
 272         }
 273
 274         /* first check this is from register 0 */
 275         if (nb != 3 || (data[0] & 3) != KEYB_KEYREG)
 276                 return;         /* ignore it */
 277         adbhid_input_keycode(id, data[1], 0);
 278         if (!(data[2] == 0xff || (data[2] == 0x7f && data[1] == 0x7f)))
 279                 adbhid_input_keycode(id, data[2], 0);
 280 }
 281
 282 static void
 283 adbhid_input_keycode(int id, int scancode, int repeat)
 284 {
 285         struct adbhid *ahid = adbhid[id];
 286         int keycode, up_flag, key;
 287
 288         keycode = scancode & 0x7f;
 289         up_flag = scancode & 0x80;
 290
 291         if (restore_capslock_events) {
 292                 if (keycode == ADB_KEY_CAPSLOCK && !up_flag) {
 293                         /* Key pressed, turning on the CapsLock LED.
 294                          * The next 0xff will be interpreted as a release. */
 295                         if (ahid->flags & FLAG_CAPSLOCK_IGNORE_NEXT) {
 296                                 /* Throw away this key event if it happens
 297                                  * just after resume. */
 298                                 ahid->flags &= ~FLAG_CAPSLOCK_IGNORE_NEXT;
 299                                 return;
 300                         } else {
 301                                 ahid->flags |= FLAG_CAPSLOCK_TRANSLATE
 302                                         | FLAG_CAPSLOCK_DOWN;
 303                         }
 304                 } else if (scancode == 0xff) {
 305                         /* Scancode 0xff usually signifies that the capslock
 306                          * key was either pressed or released. */
 307                         if (ahid->flags & FLAG_CAPSLOCK_TRANSLATE) {
 308                                 keycode = ADB_KEY_CAPSLOCK;
 309                                 if (ahid->flags & FLAG_CAPSLOCK_DOWN) {
 310                                         /* Key released */
 311                                         up_flag = 1;
 312                                         ahid->flags &= ~FLAG_CAPSLOCK_DOWN;
 313                                 } else {
 314                                         /* Key pressed */
 315                                         up_flag = 0;
 316                                         ahid->flags &= ~FLAG_CAPSLOCK_TRANSLATE;
 317                                 }
 318                         } else {
 319                                 printk(KERN_INFO "Spurious caps lock event "
 320                                                 "(scancode 0xff).");
 321                         }
 322                 }
 323         }
 324
 325         switch (keycode) {
 326         case ADB_KEY_CAPSLOCK:
 327                 if (!restore_capslock_events) {
 328                         /* Generate down/up events for CapsLock everytime. */
 329                         input_report_key(ahid->input, KEY_CAPSLOCK, 1);
 330                         input_sync(ahid->input);
 331                         input_report_key(ahid->input, KEY_CAPSLOCK, 0);
 332                         input_sync(ahid->input);
 333                         return;
 334                 }
 335                 break;
 336 #ifdef CONFIG_PPC_PMAC
 337         case ADB_KEY_POWER_OLD: /* Power key on PBook 3400 needs remapping */
 338                 switch(pmac_call_feature(PMAC_FTR_GET_MB_INFO,
 339                         NULL, PMAC_MB_INFO_MODEL, 0)) {
 340                 case PMAC_TYPE_COMET:
 341                 case PMAC_TYPE_HOOPER:
 342                 case PMAC_TYPE_KANGA:
 343                         keycode = ADB_KEY_POWER;
 344                 }
 345                 break;
 346         case ADB_KEY_POWER:
 347                 /* Fn + Command will produce a bogus "power" keycode */
 348                 if (ahid->flags & FLAG_FN_KEY_PRESSED) {
 349                         keycode = ADB_KEY_CMD;
 350                         if (up_flag)
 351                                 ahid->flags &= ~FLAG_POWER_FROM_FN;
 352                         else
 353                                 ahid->flags |= FLAG_POWER_FROM_FN;
 354                 } else if (ahid->flags & FLAG_POWER_FROM_FN) {
 355                         keycode = ADB_KEY_CMD;
 356                         ahid->flags &= ~FLAG_POWER_FROM_FN;
 357                 }
 358                 break;
 359         case ADB_KEY_FN:
 360                 /* Keep track of the Fn key state */
 361                 if (up_flag) {
 362                         ahid->flags &= ~FLAG_FN_KEY_PRESSED;
 363                         /* Emulate Fn+delete = forward delete */
 364                         if (ahid->flags & FLAG_EMU_FWDEL_DOWN) {
 365                                 ahid->flags &= ~FLAG_EMU_FWDEL_DOWN;
 366                                 keycode = ADB_KEY_FWDEL;
 367                                 break;
 368                         }
 369                 } else
 370                         ahid->flags |= FLAG_FN_KEY_PRESSED;
 371                 break;
 372         case ADB_KEY_DEL:
 373                 /* Emulate Fn+delete = forward delete */
 374                 if (ahid->flags & FLAG_FN_KEY_PRESSED) {
 375                         keycode = ADB_KEY_FWDEL;
 376                         if (up_flag)
 377                                 ahid->flags &= ~FLAG_EMU_FWDEL_DOWN;
 378                         else
 379                                 ahid->flags |= FLAG_EMU_FWDEL_DOWN;
 380                 }
 381                 break;
 382 #endif /* CONFIG_PPC_PMAC */
 383         }
 384
 385         key = adbhid[id]->keycode[keycode];
 386         if (key) {
 387                 input_report_key(adbhid[id]->input, key, !up_flag);
 388                 input_sync(adbhid[id]->input);
 389         } else
 390                 printk(KERN_INFO "Unhandled ADB key (scancode %#02x) %s.\n", keycode,
 391                        up_flag ? "released" : "pressed");
 392
 393 }
 394
 395 static void
 396 adbhid_mouse_input(unsigned char *data, int nb, int autopoll)
 397 {
 398         int id = (data[0] >> 4) & 0x0f;
 399
 400         if (!adbhid[id]) {
 401                 printk(KERN_ERR "ADB HID on ID %d not yet registered\n", id);
 402                 return;
 403         }
 404
 405   /*
 406     Handler 1 -- 100cpi original Apple mouse protocol.
 407     Handler 2 -- 200cpi original Apple mouse protocol.
 408
 409     For Apple's standard one-button mouse protocol the data array will
 410     contain the following values:
 411
 412                 BITS    COMMENTS
 413     data[0] = dddd 1100 ADB command: Talk, register 0, for device dddd.
 414     data[1] = bxxx xxxx First button and x-axis motion.
 415     data[2] = byyy yyyy Second button and y-axis motion.
 416
 417     Handler 4 -- Apple Extended mouse protocol.
 418
 419     For Apple's 3-button mouse protocol the data array will contain the
 420     following values:
 421
 422                 BITS    COMMENTS
 423     data[0] = dddd 1100 ADB command: Talk, register 0, for device dddd.
 424     data[1] = bxxx xxxx Left button and x-axis motion.
 425     data[2] = byyy yyyy Second button and y-axis motion.
 426     data[3] = byyy bxxx Third button and fourth button.  Y is additional
 427               high bits of y-axis motion.  XY is additional
 428               high bits of x-axis motion.
 429
 430     MacAlly 2-button mouse protocol.
 431
 432     For MacAlly 2-button mouse protocol the data array will contain the
 433     following values:
 434
 435                 BITS    COMMENTS
 436     data[0] = dddd 1100 ADB command: Talk, register 0, for device dddd.
 437     data[1] = bxxx xxxx Left button and x-axis motion.
 438     data[2] = byyy yyyy Right button and y-axis motion.
 439     data[3] = ???? ???? unknown
 440     data[4] = ???? ???? unknown
 441
 442   */
 443
 444         /* If it's a trackpad, we alias the second button to the first.
 445            NOTE: Apple sends an ADB flush command to the trackpad when
 446                  the first (the real) button is released. We could do
 447                  this here using async flush requests.
 448         */
 449         switch (adbhid[id]->mouse_kind)
 450         {
 451             case ADBMOUSE_TRACKPAD:
 452                 data[1] = (data[1] & 0x7f) | ((data[1] & data[2]) & 0x80);
 453                 data[2] = data[2] | 0x80;
 454                 break;
 455             case ADBMOUSE_MICROSPEED:
 456                 data[1] = (data[1] & 0x7f) | ((data[3] & 0x01) << 7);
 457                 data[2] = (data[2] & 0x7f) | ((data[3] & 0x02) << 6);
 458                 data[3] = (data[3] & 0x77) | ((data[3] & 0x04) << 5)
 459                         | (data[3] & 0x08);
 460                 break;
 461             case ADBMOUSE_TRACKBALLPRO:
 462                 data[1] = (data[1] & 0x7f) | (((data[3] & 0x04) << 5)
 463                         & ((data[3] & 0x08) << 4));
 464                 data[2] = (data[2] & 0x7f) | ((data[3] & 0x01) << 7);
 465                 data[3] = (data[3] & 0x77) | ((data[3] & 0x02) << 6);
 466                 break;
 467             case ADBMOUSE_MS_A3:
 468                 data[1] = (data[1] & 0x7f) | ((data[3] & 0x01) << 7);
 469                 data[2] = (data[2] & 0x7f) | ((data[3] & 0x02) << 6);
 470                 data[3] = ((data[3] & 0x04) << 5);
 471                 break;
 472             case ADBMOUSE_MACALLY2:
 473                 data[3] = (data[2] & 0x80) ? 0x80 : 0x00;
 474                 data[2] |= 0x80;  /* Right button is mapped as button 3 */
 475                 nb=4;
 476                 break;
 477         }
 478
 479         input_report_key(adbhid[id]->input, BTN_LEFT,   !((data[1] >> 7) & 1));
 480         input_report_key(adbhid[id]->input, BTN_MIDDLE, !((data[2] >> 7) & 1));
 481
 482         if (nb >= 4 && adbhid[id]->mouse_kind != ADBMOUSE_TRACKPAD)
 483                 input_report_key(adbhid[id]->input, BTN_RIGHT,  !((data[3] >> 7) & 1));
 484
 485         input_report_rel(adbhid[id]->input, REL_X,
 486                          ((data[2]&0x7f) < 64 ? (data[2]&0x7f) : (data[2]&0x7f)-128 ));
 487         input_report_rel(adbhid[id]->input, REL_Y,
 488                          ((data[1]&0x7f) < 64 ? (data[1]&0x7f) : (data[1]&0x7f)-128 ));
 489
 490         input_sync(adbhid[id]->input);
 491 }
 492
 493 static void
 494 adbhid_buttons_input(unsigned char *data, int nb, int autopoll)
 495 {
 496         int id = (data[0] >> 4) & 0x0f;
 497
 498         if (!adbhid[id]) {
 499                 printk(KERN_ERR "ADB HID on ID %d not yet registered\n", id);
 500                 return;
 501         }
 502
 503         switch (adbhid[id]->original_handler_id) {
 504         default:
 505         case 0x02: /* Adjustable keyboard button device */
 506           {
 507                 int down = (data[1] == (data[1] & 0xf));
 508
 509                 switch (data[1] & 0x0f) {
 510                 case 0x0:       /* microphone */
 511                         input_report_key(adbhid[id]->input, KEY_SOUND, down);
 512                         break;
 513
 514                 case 0x1:       /* mute */
 515                         input_report_key(adbhid[id]->input, KEY_MUTE, down);
 516                         break;
 517
 518                 case 0x2:       /* volume decrease */
 519                         input_report_key(adbhid[id]->input, KEY_VOLUMEDOWN, down);
 520                         break;
 521
 522                 case 0x3:       /* volume increase */
 523                         input_report_key(adbhid[id]->input, KEY_VOLUMEUP, down);
 524                         break;
 525
 526                 default:
 527                         printk(KERN_INFO "Unhandled ADB_MISC event %02x, %02x, %02x, %02x\n",
 528                                data[0], data[1], data[2], data[3]);
 529                         break;
 530                 }
 531           }
 532           break;
 533
 534         case 0x1f: /* Powerbook button device */
 535           {
 536                 int down = (data[1] == (data[1] & 0xf));
 537
 538                 /*
 539                  * XXX: Where is the contrast control for the passive?
 540                  *  -- Cort
 541                  */
 542
 543                 switch (data[1] & 0x0f) {
 544                 case 0x8:       /* mute */
 545                         input_report_key(adbhid[id]->input, KEY_MUTE, down);
 546                         break;
 547
 548                 case 0x7:       /* volume decrease */
 549                         input_report_key(adbhid[id]->input, KEY_VOLUMEDOWN, down);
 550                         break;
 551
 552                 case 0x6:       /* volume increase */
 553                         input_report_key(adbhid[id]->input, KEY_VOLUMEUP, down);
 554                         break;
 555
 556                 case 0xb:       /* eject */
 557                         input_report_key(adbhid[id]->input, KEY_EJECTCD, down);
 558                         break;
 559
 560                 case 0xa:       /* brightness decrease */
 561 #ifdef CONFIG_PMAC_BACKLIGHT
 562                         if (down)
 563                                 pmac_backlight_key_down();
 564 #endif
 565                         input_report_key(adbhid[id]->input, KEY_BRIGHTNESSDOWN, down);
 566                         break;
 567
 568                 case 0x9:       /* brightness increase */
 569 #ifdef CONFIG_PMAC_BACKLIGHT
 570                         if (down)
 571                                 pmac_backlight_key_up();
 572 #endif
 573                         input_report_key(adbhid[id]->input, KEY_BRIGHTNESSUP, down);
 574                         break;
 575
 576                 case 0xc:       /* videomode switch */
 577                         input_report_key(adbhid[id]->input, KEY_SWITCHVIDEOMODE, down);
 578                         break;
 579
 580                 case 0xd:       /* keyboard illumination toggle */
 581                         input_report_key(adbhid[id]->input, KEY_KBDILLUMTOGGLE, down);
 582                         break;
 583
 584                 case 0xe:       /* keyboard illumination decrease */
 585                         input_report_key(adbhid[id]->input, KEY_KBDILLUMDOWN, down);
 586                         break;
 587
 588                 case 0xf:
 589                         switch (data[1]) {
 590                         case 0x8f:
 591                         case 0x0f:
 592                                 /* keyboard illumination increase */
 593                                 input_report_key(adbhid[id]->input, KEY_KBDILLUMUP, down);
 594                                 break;
 595
 596                         case 0x7f:
 597                         case 0xff:
 598                                 /* keypad overlay toogle */
 599                                 break;
 600
 601                         default:
 602                                 printk(KERN_INFO "Unhandled ADB_MISC event %02x, %02x, %02x, %02x\n",
 603                                        data[0], data[1], data[2], data[3]);
 604                                 break;
 605                         }
 606                         break;
 607                 default:
 608                         printk(KERN_INFO "Unhandled ADB_MISC event %02x, %02x, %02x, %02x\n",
 609                                data[0], data[1], data[2], data[3]);
 610                         break;
 611                 }
 612           }
 613           break;
 614         }
 615
 616         input_sync(adbhid[id]->input);
 617 }
 618
 619 static struct adb_request led_request;
 620 static int leds_pending[16];
 621 static int leds_req_pending;
 622 static int pending_devs[16];
 623 static int pending_led_start;
 624 static int pending_led_end;
 625 static DEFINE_SPINLOCK(leds_lock);
 626
 627 static void leds_done(struct adb_request *req)
 628 {
 629         int leds = 0, device = 0, pending = 0;
 630         unsigned long flags;
 631
 632         spin_lock_irqsave(&leds_lock, flags);
 633
 634         if (pending_led_start != pending_led_end) {
 635                 device = pending_devs[pending_led_start];
 636                 leds = leds_pending[device] & 0xff;
 637                 leds_pending[device] = 0;
 638                 pending_led_start++;
 639                 pending_led_start = (pending_led_start < 16) ? pending_led_start : 0;
 640                 pending = leds_req_pending;
 641         } else
 642                 leds_req_pending = 0;
 643         spin_unlock_irqrestore(&leds_lock, flags);
 644         if (pending)
 645                 adb_request(&led_request, leds_done, 0, 3,
 646                             ADB_WRITEREG(device, KEYB_LEDREG), 0xff, ~leds);
 647 }
 648
 649 static void real_leds(unsigned char leds, int device)
 650 {
 651         unsigned long flags;
 652
 653         spin_lock_irqsave(&leds_lock, flags);
 654         if (!leds_req_pending) {
 655                 leds_req_pending = 1;
 656                 spin_unlock_irqrestore(&leds_lock, flags);
 657                 adb_request(&led_request, leds_done, 0, 3,
 658                             ADB_WRITEREG(device, KEYB_LEDREG), 0xff, ~leds);
 659                 return;
 660         } else {
 661                 if (!(leds_pending[device] & 0x100)) {
 662                         pending_devs[pending_led_end] = device;
 663                         pending_led_end++;
 664                         pending_led_end = (pending_led_end < 16) ? pending_led_end : 0;
 665                 }
 666                 leds_pending[device] = leds | 0x100;
 667         }
 668         spin_unlock_irqrestore(&leds_lock, flags);
 669 }
 670
 671 /*
 672  * Event callback from the input module. Events that change the state of
 673  * the hardware are processed here.
 674  */
 675 static int adbhid_kbd_event(struct input_dev *dev, unsigned int type, unsigned int code, int value)
 676 {
 677         struct adbhid *adbhid = input_get_drvdata(dev);
 678         unsigned char leds;
 679
 680         switch (type) {
 681         case EV_LED:
 682                 leds =  (test_bit(LED_SCROLLL, dev->led) ? 4 : 0) |
 683                         (test_bit(LED_NUML,    dev->led) ? 1 : 0) |
 684                         (test_bit(LED_CAPSL,   dev->led) ? 2 : 0);
 685                 real_leds(leds, adbhid->id);
 686                 return 0;
 687         }
 688
 689         return -1;
 690 }
 691
 692 static void
 693 adbhid_kbd_capslock_remember(void)
 694 {
 695         struct adbhid *ahid;
 696         int i;
 697
 698         for (i = 1; i < 16; i++) {
 699                 ahid = adbhid[i];
 700
 701                 if (ahid && ahid->id == ADB_KEYBOARD)
 702                         if (ahid->flags & FLAG_CAPSLOCK_TRANSLATE)
 703                                 ahid->flags |= FLAG_CAPSLOCK_IGNORE_NEXT;
 704         }
 705 }
 706
 707 static int
 708 adb_message_handler(struct notifier_block *this, unsigned long code, void *x)
 709 {
 710         switch (code) {
 711         case ADB_MSG_PRE_RESET:
 712         case ADB_MSG_POWERDOWN:
 713                 /* Stop the repeat timer. Autopoll is already off at this point */
 714                 {
 715                         int i;
 716                         for (i = 1; i < 16; i++) {
 717                                 if (adbhid[i])
 718                                         del_timer_sync(&adbhid[i]->input->timer);
 719                         }
 720                 }
 721
 722                 /* Stop pending led requests */
 723                 while (leds_req_pending)
 724                         adb_poll();
 725
 726                 /* After resume, and if the capslock LED is on, the PMU will
 727                  * send a "capslock down" key event. This confuses the
 728                  * restore_capslock_events logic. Remember if the capslock
 729                  * LED was on before suspend so the unwanted key event can
 730                  * be ignored after resume. */
 731                 if (restore_capslock_events)
 732                         adbhid_kbd_capslock_remember();
 733
 734                 break;
 735
 736         case ADB_MSG_POST_RESET:
 737                 adbhid_probe();
 738                 break;
 739         }
 740         return NOTIFY_DONE;
 741 }
 742
 743 static int
 744 adbhid_input_register(int id, int default_id, int original_handler_id,
 745                       int current_handler_id, int mouse_kind)
 746 {
 747         struct adbhid *hid;
 748         struct input_dev *input_dev;
 749         int err;
 750         int i;
 751
 752         if (adbhid[id]) {
 753                 printk(KERN_ERR "Trying to reregister ADB HID on ID %d\n", id);
 754                 return -EEXIST;
 755         }
 756
 757         adbhid[id] = hid = kzalloc(sizeof(struct adbhid), GFP_KERNEL);
 758         input_dev = input_allocate_device();
 759         if (!hid || !input_dev) {
 760                 err = -ENOMEM;
 761                 goto fail;
 762         }
 763
 764         sprintf(hid->phys, "adb%d:%d.%02x/input", id, default_id, original_handler_id);
 765
 766         hid->input = input_dev;
 767         hid->id = default_id;
 768         hid->original_handler_id = original_handler_id;
 769         hid->current_handler_id = current_handler_id;
 770         hid->mouse_kind = mouse_kind;
 771         hid->flags = 0;
 772         input_set_drvdata(input_dev, hid);
 773         input_dev->name = hid->name;
 774         input_dev->phys = hid->phys;
 775         input_dev->id.bustype = BUS_ADB;
 776         input_dev->id.vendor = 0x0001;
 777         input_dev->id.product = (id << 12) | (default_id << 8) | original_handler_id;
 778         input_dev->id.version = 0x0100;
 779
 780         switch (default_id) {
 781         case ADB_KEYBOARD:
 782                 hid->keycode = kmalloc(sizeof(adb_to_linux_keycodes), GFP_KERNEL);
 783                 if (!hid->keycode) {
 784                         err = -ENOMEM;
 785                         goto fail;
 786                 }
 787
 788                 sprintf(hid->name, "ADB keyboard");
 789
 790                 memcpy(hid->keycode, adb_to_linux_keycodes, sizeof(adb_to_linux_keycodes));
 791
 792                 printk(KERN_INFO "Detected ADB keyboard, type ");
 793                 switch (original_handler_id) {
 794                 default:
 795                         printk("<unknown>.\n");
 796                         input_dev->id.version = ADB_KEYBOARD_UNKNOWN;
 797                         break;
 798
 799                 case 0x01: case 0x02: case 0x03: case 0x06: case 0x08:
 800                 case 0x0C: case 0x10: case 0x18: case 0x1B: case 0x1C:
 801                 case 0xC0: case 0xC3: case 0xC6:
 802                         printk("ANSI.\n");
 803                         input_dev->id.version = ADB_KEYBOARD_ANSI;
 804                         break;
 805
 806                 case 0x04: case 0x05: case 0x07: case 0x09: case 0x0D:
 807                 case 0x11: case 0x14: case 0x19: case 0x1D: case 0xC1:
 808                 case 0xC4: case 0xC7:
 809                         printk("ISO, swapping keys.\n");
 810                         input_dev->id.version = ADB_KEYBOARD_ISO;
 811                         i = hid->keycode[10];
 812                         hid->keycode[10] = hid->keycode[50];
 813                         hid->keycode[50] = i;
 814                         break;
 815
 816                 case 0x12: case 0x15: case 0x16: case 0x17: case 0x1A:
 817                 case 0x1E: case 0xC2: case 0xC5: case 0xC8: case 0xC9:
 818                         printk("JIS.\n");
 819                         input_dev->id.version = ADB_KEYBOARD_JIS;
 820                         break;
 821                 }
 822
 823                 for (i = 0; i < 128; i++)
 824                         if (hid->keycode[i])
 825                                 set_bit(hid->keycode[i], input_dev->keybit);
 826
 827                 input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_LED) |
 828                         BIT_MASK(EV_REP);
 829                 input_dev->ledbit[0] = BIT_MASK(LED_SCROLLL) |
 830                         BIT_MASK(LED_CAPSL) | BIT_MASK(LED_NUML);
 831                 input_dev->event = adbhid_kbd_event;
 832                 input_dev->keycodemax = KEY_FN;
 833                 input_dev->keycodesize = sizeof(hid->keycode[0]);
 834                 break;
 835
 836         case ADB_MOUSE:
 837                 sprintf(hid->name, "ADB mouse");
 838
 839                 input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL);
 840                 input_dev->keybit[BIT_WORD(BTN_MOUSE)] = BIT_MASK(BTN_LEFT) |
 841                         BIT_MASK(BTN_MIDDLE) | BIT_MASK(BTN_RIGHT);
 842                 input_dev->relbit[0] = BIT_MASK(REL_X) | BIT_MASK(REL_Y);
 843                 break;
 844
 845         case ADB_MISC:
 846                 switch (original_handler_id) {
 847                 case 0x02: /* Adjustable keyboard button device */
 848                         sprintf(hid->name, "ADB adjustable keyboard buttons");
 849                         input_dev->evbit[0] = BIT_MASK(EV_KEY) |
 850                                 BIT_MASK(EV_REP);
 851                         set_bit(KEY_SOUND, input_dev->keybit);
 852                         set_bit(KEY_MUTE, input_dev->keybit);
 853                         set_bit(KEY_VOLUMEUP, input_dev->keybit);
 854                         set_bit(KEY_VOLUMEDOWN, input_dev->keybit);
 855                         break;
 856                 case 0x1f: /* Powerbook button device */
 857                         sprintf(hid->name, "ADB Powerbook buttons");
 858                         input_dev->evbit[0] = BIT_MASK(EV_KEY) |
 859                                 BIT_MASK(EV_REP);
 860                         set_bit(KEY_MUTE, input_dev->keybit);
 861                         set_bit(KEY_VOLUMEUP, input_dev->keybit);
 862                         set_bit(KEY_VOLUMEDOWN, input_dev->keybit);
 863                         set_bit(KEY_BRIGHTNESSUP, input_dev->keybit);
 864                         set_bit(KEY_BRIGHTNESSDOWN, input_dev->keybit);
 865                         set_bit(KEY_EJECTCD, input_dev->keybit);
 866                         set_bit(KEY_SWITCHVIDEOMODE, input_dev->keybit);
 867                         set_bit(KEY_KBDILLUMTOGGLE, input_dev->keybit);
 868                         set_bit(KEY_KBDILLUMDOWN, input_dev->keybit);
 869                         set_bit(KEY_KBDILLUMUP, input_dev->keybit);
 870                         break;
 871                 }
 872                 if (hid->name[0])
 873                         break;
 874                 /* else fall through */
 875
 876         default:
 877                 printk(KERN_INFO "Trying to register unknown ADB device to input layer.\n");
 878                 err = -ENODEV;
 879                 goto fail;
 880         }
 881
 882         input_dev->keycode = hid->keycode;
 883
 884         err = input_register_device(input_dev);
 885         if (err)
 886                 goto fail;
 887
 888         if (default_id == ADB_KEYBOARD) {
 889                 /* HACK WARNING!! This should go away as soon there is an utility
 890                  * to control that for event devices.
 891                  */
 892                 input_dev->rep[REP_DELAY] = 500;   /* input layer default: 250 */
 893                 input_dev->rep[REP_PERIOD] = 66; /* input layer default: 33 */
 894         }
 895
 896         return 0;
 897
 898  fail:  input_free_device(input_dev);
 899         if (hid) {
 900                 kfree(hid->keycode);
 901                 kfree(hid);
 902         }
 903         adbhid[id] = NULL;
 904         return err;
 905 }
 906
 907 static void adbhid_input_unregister(int id)
 908 {
 909         input_unregister_device(adbhid[id]->input);
 910         kfree(adbhid[id]->keycode);
 911         kfree(adbhid[id]);
 912         adbhid[id] = NULL;
 913 }
 914
 915
 916 static u16
 917 adbhid_input_reregister(int id, int default_id, int org_handler_id,
 918                         int cur_handler_id, int mk)
 919 {
 920         if (adbhid[id]) {
 921                 if (adbhid[id]->input->id.product !=
 922                     ((id << 12)|(default_id << 8)|org_handler_id)) {
 923                         adbhid_input_unregister(id);
 924                         adbhid_input_register(id, default_id, org_handler_id,
 925                                               cur_handler_id, mk);
 926                 }
 927         } else
 928                 adbhid_input_register(id, default_id, org_handler_id,
 929                                       cur_handler_id, mk);
 930         return 1<<id;
 931 }
 932
 933 static void
 934 adbhid_input_devcleanup(u16 exist)
 935 {
 936         int i;
 937         for(i=1; i<16; i++)
 938                 if (adbhid[i] && !(exist&(1<<i)))
 939                         adbhid_input_unregister(i);
 940 }
 941
 942 static void
 943 adbhid_probe(void)
 944 {
 945         struct adb_request req;
 946         int i, default_id, org_handler_id, cur_handler_id;
 947         u16 reg = 0;
 948
 949         adb_register(ADB_MOUSE, 0, &mouse_ids, adbhid_mouse_input);
 950         adb_register(ADB_KEYBOARD, 0, &keyboard_ids, adbhid_keyboard_input);
 951         adb_register(ADB_MISC, 0, &buttons_ids, adbhid_buttons_input);
 952
 953         for (i = 0; i < keyboard_ids.nids; i++) {
 954                 int id = keyboard_ids.id[i];
 955
 956                 adb_get_infos(id, &default_id, &org_handler_id);
 957
 958                 /* turn off all leds */
 959                 adb_request(&req, NULL, ADBREQ_SYNC, 3,
 960                             ADB_WRITEREG(id, KEYB_LEDREG), 0xff, 0xff);
 961
 962                 /* Enable full feature set of the keyboard
 963                    ->get it to send separate codes for left and right shift,
 964                    control, option keys */
 965 #if 0           /* handler 5 doesn't send separate codes for R modifiers */
 966                 if (adb_try_handler_change(id, 5))
 967                         printk("ADB keyboard at %d, handler set to 5\n", id);
 968                 else
 969 #endif
 970                 if (adb_try_handler_change(id, 3))
 971                         printk("ADB keyboard at %d, handler set to 3\n", id);
 972                 else
 973                         printk("ADB keyboard at %d, handler 1\n", id);
 974
 975                 adb_get_infos(id, &default_id, &cur_handler_id);
 976                 reg |= adbhid_input_reregister(id, default_id, org_handler_id,
 977                                                cur_handler_id, 0);
 978         }
 979
 980         for (i = 0; i < buttons_ids.nids; i++) {
 981                 int id = buttons_ids.id[i];
 982
 983                 adb_get_infos(id, &default_id, &org_handler_id);
 984                 reg |= adbhid_input_reregister(id, default_id, org_handler_id,
 985                                                org_handler_id, 0);
 986         }
 987
 988         /* Try to switch all mice to handler 4, or 2 for three-button
 989            mode and full resolution. */
 990         for (i = 0; i < mouse_ids.nids; i++) {
 991                 int id = mouse_ids.id[i];
 992                 int mouse_kind;
 993
 994                 adb_get_infos(id, &default_id, &org_handler_id);
 995
 996                 if (adb_try_handler_change(id, 4)) {
 997                         printk("ADB mouse at %d, handler set to 4", id);
 998                         mouse_kind = ADBMOUSE_EXTENDED;
 999                 }
1000                 else if (adb_try_handler_change(id, 0x2F)) {
1001                         printk("ADB mouse at %d, handler set to 0x2F", id);
1002                         mouse_kind = ADBMOUSE_MICROSPEED;
1003                 }
1004                 else if (adb_try_handler_change(id, 0x42)) {
1005                         printk("ADB mouse at %d, handler set to 0x42", id);
1006                         mouse_kind = ADBMOUSE_TRACKBALLPRO;
1007                 }
1008                 else if (adb_try_handler_change(id, 0x66)) {
1009                         printk("ADB mouse at %d, handler set to 0x66", id);
1010                         mouse_kind = ADBMOUSE_MICROSPEED;
1011                 }
1012                 else if (adb_try_handler_change(id, 0x5F)) {
1013                         printk("ADB mouse at %d, handler set to 0x5F", id);
1014                         mouse_kind = ADBMOUSE_MICROSPEED;
1015                 }
1016                 else if (adb_try_handler_change(id, 3)) {
1017                         printk("ADB mouse at %d, handler set to 3", id);
1018                         mouse_kind = ADBMOUSE_MS_A3;
1019                 }
1020                 else if (adb_try_handler_change(id, 2)) {
1021                         printk("ADB mouse at %d, handler set to 2", id);
1022                         mouse_kind = ADBMOUSE_STANDARD_200;
1023                 }
1024                 else {
1025                         printk("ADB mouse at %d, handler 1", id);
1026                         mouse_kind = ADBMOUSE_STANDARD_100;
1027                 }
1028
1029                 if ((mouse_kind == ADBMOUSE_TRACKBALLPRO)
1030                     || (mouse_kind == ADBMOUSE_MICROSPEED)) {
1031                         init_microspeed(id);
1032                 } else if (mouse_kind == ADBMOUSE_MS_A3) {
1033                         init_ms_a3(id);
1034                 } else if (mouse_kind ==  ADBMOUSE_EXTENDED) {
1035                         /*
1036                          * Register 1 is usually used for device
1037                          * identification.  Here, we try to identify
1038                          * a known device and call the appropriate
1039                          * init function.
1040                          */
1041                         adb_request(&req, NULL, ADBREQ_SYNC | ADBREQ_REPLY, 1,
1042                                     ADB_READREG(id, 1));
1043
1044                         if ((req.reply_len) &&
1045                             (req.reply[1] == 0x9a) && ((req.reply[2] == 0x21)
1046                                 || (req.reply[2] == 0x20))) {
1047                                 mouse_kind = ADBMOUSE_TRACKBALL;
1048                                 init_trackball(id);
1049                         }
1050                         else if ((req.reply_len >= 4) &&
1051                             (req.reply[1] == 0x74) && (req.reply[2] == 0x70) &&
1052                             (req.reply[3] == 0x61) && (req.reply[4] == 0x64)) {
1053                                 mouse_kind = ADBMOUSE_TRACKPAD;
1054                                 init_trackpad(id);
1055                         }
1056                         else if ((req.reply_len >= 4) &&
1057                             (req.reply[1] == 0x4b) && (req.reply[2] == 0x4d) &&
1058                             (req.reply[3] == 0x4c) && (req.reply[4] == 0x31)) {
1059                                 mouse_kind = ADBMOUSE_TURBOMOUSE5;
1060                                 init_turbomouse(id);
1061                         }
1062                         else if ((req.reply_len == 9) &&
1063                             (req.reply[1] == 0x4b) && (req.reply[2] == 0x4f) &&
1064                             (req.reply[3] == 0x49) && (req.reply[4] == 0x54)) {
1065                                 if (adb_try_handler_change(id, 0x42)) {
1066                                         printk("\nADB MacAlly 2-button mouse at %d, handler set to 0x42", id);
1067                                         mouse_kind = ADBMOUSE_MACALLY2;
1068                                 }
1069                         }
1070                 }
1071                 printk("\n");
1072
1073                 adb_get_infos(id, &default_id, &cur_handler_id);
1074                 reg |= adbhid_input_reregister(id, default_id, org_handler_id,
1075                                                cur_handler_id, mouse_kind);
1076         }
1077         adbhid_input_devcleanup(reg);
1078 }
1079
1080 static void
1081 init_trackpad(int id)
1082 {
1083         struct adb_request req;
1084         unsigned char r1_buffer[8];
1085
1086         printk(" (trackpad)");
1087
1088         adb_request(&req, NULL, ADBREQ_SYNC | ADBREQ_REPLY, 1,
1089                     ADB_READREG(id,1));
1090         if (req.reply_len < 8)
1091             printk("bad length for reg. 1\n");
1092         else
1093         {
1094             memcpy(r1_buffer, &req.reply[1], 8);
1095
1096             adb_request(&req, NULL, ADBREQ_SYNC, 9,
1097                 ADB_WRITEREG(id,1),
1098                     r1_buffer[0],
1099                     r1_buffer[1],
1100                     r1_buffer[2],
1101                     r1_buffer[3],
1102                     r1_buffer[4],
1103                     r1_buffer[5],
1104                     0x0d,
1105                     r1_buffer[7]);
1106
1107             adb_request(&req, NULL, ADBREQ_SYNC, 9,
1108                 ADB_WRITEREG(id,2),
1109                     0x99,
1110                     0x94,
1111                     0x19,
1112                     0xff,
1113                     0xb2,
1114                     0x8a,
1115                     0x1b,
1116                     0x50);
1117
1118             adb_request(&req, NULL, ADBREQ_SYNC, 9,
1119                 ADB_WRITEREG(id,1),
1120                     r1_buffer[0],
1121                     r1_buffer[1],
1122                     r1_buffer[2],
1123                     r1_buffer[3],
1124                     r1_buffer[4],
1125                     r1_buffer[5],
1126                     0x03, /*r1_buffer[6],*/
1127                     r1_buffer[7]);
1128
1129             /* Without this flush, the trackpad may be locked up */
1130             adb_request(&req, NULL, ADBREQ_SYNC, 1, ADB_FLUSH(id));
1131         }
1132 }
1133
1134 static void
1135 init_trackball(int id)
1136 {
1137         struct adb_request req;
1138
1139         printk(" (trackman/mouseman)");
1140
1141         adb_request(&req, NULL, ADBREQ_SYNC, 3,
1142         ADB_WRITEREG(id,1), 00,0x81);
1143
1144         adb_request(&req, NULL, ADBREQ_SYNC, 3,
1145         ADB_WRITEREG(id,1), 01,0x81);
1146
1147         adb_request(&req, NULL, ADBREQ_SYNC, 3,
1148         ADB_WRITEREG(id,1), 02,0x81);
1149
1150         adb_request(&req, NULL, ADBREQ_SYNC, 3,
1151         ADB_WRITEREG(id,1), 03,0x38);
1152
1153         adb_request(&req, NULL, ADBREQ_SYNC, 3,
1154         ADB_WRITEREG(id,1), 00,0x81);
1155
1156         adb_request(&req, NULL, ADBREQ_SYNC, 3,
1157         ADB_WRITEREG(id,1), 01,0x81);
1158
1159         adb_request(&req, NULL, ADBREQ_SYNC, 3,
1160         ADB_WRITEREG(id,1), 02,0x81);
1161
1162         adb_request(&req, NULL, ADBREQ_SYNC, 3,
1163         ADB_WRITEREG(id,1), 03,0x38);
1164 }
1165
1166 static void
1167 init_turbomouse(int id)
1168 {
1169         struct adb_request req;
1170
1171         printk(" (TurboMouse 5)");
1172
1173         adb_request(&req, NULL, ADBREQ_SYNC, 1, ADB_FLUSH(id));
1174
1175         adb_request(&req, NULL, ADBREQ_SYNC, 1, ADB_FLUSH(3));
1176
1177         adb_request(&req, NULL, ADBREQ_SYNC, 9,
1178         ADB_WRITEREG(3,2),
1179             0xe7,
1180             0x8c,
1181             0,
1182             0,
1183             0,
1184             0xff,
1185             0xff,
1186             0x94);
1187
1188         adb_request(&req, NULL, ADBREQ_SYNC, 1, ADB_FLUSH(3));
1189
1190         adb_request(&req, NULL, ADBREQ_SYNC, 9,
1191         ADB_WRITEREG(3,2),
1192             0xa5,
1193             0x14,
1194             0,
1195             0,
1196             0x69,
1197             0xff,
1198             0xff,
1199             0x27);
1200 }
1201
1202 static void
1203 init_microspeed(int id)
1204 {
1205         struct adb_request req;
1206
1207         printk(" (Microspeed/MacPoint or compatible)");
1208
1209         adb_request(&req, NULL, ADBREQ_SYNC, 1, ADB_FLUSH(id));
1210
1211         /* This will initialize mice using the Microspeed, MacPoint and
1212            other compatible firmware. Bit 12 enables extended protocol.
1213
1214            Register 1 Listen (4 Bytes)
1215             0 -  3     Button is mouse (set also for double clicking!!!)
1216             4 -  7     Button is locking (affects change speed also)
1217             8 - 11     Button changes speed
1218            12          1 = Extended mouse mode, 0 = normal mouse mode
1219            13 - 15     unused 0
1220            16 - 23     normal speed
1221            24 - 31     changed speed
1222
1223        Register 1 talk holds version and product identification information.
1224        Register 1 Talk (4 Bytes):
1225             0 -  7     Product code
1226             8 - 23     undefined, reserved
1227            24 - 31     Version number
1228
1229        Speed 0 is max. 1 to 255 set speed in increments of 1/256 of max.
1230  */
1231         adb_request(&req, NULL, ADBREQ_SYNC, 5,
1232         ADB_WRITEREG(id,1),
1233             0x20,       /* alt speed = 0x20 (rather slow) */
1234             0x00,       /* norm speed = 0x00 (fastest) */
1235             0x10,       /* extended protocol, no speed change */
1236             0x07);      /* all buttons enabled as mouse buttons, no locking */
1237
1238
1239         adb_request(&req, NULL, ADBREQ_SYNC, 1, ADB_FLUSH(id));
1240 }
1241
1242 static void
1243 init_ms_a3(int id)
1244 {
1245         struct adb_request req;
1246
1247         printk(" (Mouse Systems A3 Mouse, or compatible)");
1248         adb_request(&req, NULL, ADBREQ_SYNC, 3,
1249         ADB_WRITEREG(id, 0x2),
1250             0x00,
1251             0x07);
1252
1253         adb_request(&req, NULL, ADBREQ_SYNC, 1, ADB_FLUSH(id));
1254 }
1255
1256 static int __init adbhid_init(void)
1257 {
1258 #ifndef CONFIG_MAC
1259         if (!machine_is(chrp) && !machine_is(powermac))
1260                 return 0;
1261 #endif
1262
1263         led_request.complete = 1;
1264
1265         adbhid_probe();
1266
1267         blocking_notifier_chain_register(&adb_client_list,
1268                         &adbhid_adb_notifier);
1269
1270         return 0;
1271 }
1272
1273 static void __exit adbhid_exit(void)
1274 {
1275 }
1276
1277 module_init(adbhid_init);
1278 module_exit(adbhid_exit);