drivers/macintosh/adbhid.c

   1 /*
   2  * drivers/input/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/pmac_feature.h>
  50 #endif
  51
  52 #ifdef CONFIG_PMAC_BACKLIGHT
  53 #include <asm/backlight.h>
  54 #endif
  55
  56 MODULE_AUTHOR("Franz Sirl <Franz.Sirl-kernel@lauterbach.com>");
  57
  58 #define KEYB_KEYREG     0       /* register # for key up/down data */
  59 #define KEYB_LEDREG     2       /* register # for leds on ADB keyboard */
  60 #define MOUSE_DATAREG   0       /* reg# for movement/button codes from mouse */
  61
  62 static int adb_message_handler(struct notifier_block *, unsigned long, void *);
  63 static struct notifier_block adbhid_adb_notifier = {
  64         .notifier_call  = adb_message_handler,
  65 };
  66
  67 /* Some special keys */
  68 #define ADB_KEY_DEL             0x33
  69 #define ADB_KEY_CMD             0x37
  70 #define ADB_KEY_CAPSLOCK        0x39
  71 #define ADB_KEY_FN              0x3f
  72 #define ADB_KEY_FWDEL           0x75
  73 #define ADB_KEY_POWER_OLD       0x7e
  74 #define ADB_KEY_POWER           0x7f
  75
  76 u8 adb_to_linux_keycodes[128] = {
  77         /* 0x00 */ KEY_A,               /*  30 */
  78         /* 0x01 */ KEY_S,               /*  31 */
  79         /* 0x02 */ KEY_D,               /*  32 */
  80         /* 0x03 */ KEY_F,               /*  33 */
  81         /* 0x04 */ KEY_H,               /*  35 */
  82         /* 0x05 */ KEY_G,               /*  34 */
  83         /* 0x06 */ KEY_Z,               /*  44 */
  84         /* 0x07 */ KEY_X,               /*  45 */
  85         /* 0x08 */ KEY_C,               /*  46 */
  86         /* 0x09 */ KEY_V,               /*  47 */
  87         /* 0x0a */ KEY_102ND,           /*  86 */
  88         /* 0x0b */ KEY_B,               /*  48 */
  89         /* 0x0c */ KEY_Q,               /*  16 */
  90         /* 0x0d */ KEY_W,               /*  17 */
  91         /* 0x0e */ KEY_E,               /*  18 */
  92         /* 0x0f */ KEY_R,               /*  19 */
  93         /* 0x10 */ KEY_Y,               /*  21 */
  94         /* 0x11 */ KEY_T,               /*  20 */
  95         /* 0x12 */ KEY_1,               /*   2 */
  96         /* 0x13 */ KEY_2,               /*   3 */
  97         /* 0x14 */ KEY_3,               /*   4 */
  98         /* 0x15 */ KEY_4,               /*   5 */
  99         /* 0x16 */ KEY_6,               /*   7 */
 100         /* 0x17 */ KEY_5,               /*   6 */
 101         /* 0x18 */ KEY_EQUAL,           /*  13 */
 102         /* 0x19 */ KEY_9,               /*  10 */
 103         /* 0x1a */ KEY_7,               /*   8 */
 104         /* 0x1b */ KEY_MINUS,           /*  12 */
 105         /* 0x1c */ KEY_8,               /*   9 */
 106         /* 0x1d */ KEY_0,               /*  11 */
 107         /* 0x1e */ KEY_RIGHTBRACE,      /*  27 */
 108         /* 0x1f */ KEY_O,               /*  24 */
 109         /* 0x20 */ KEY_U,               /*  22 */
 110         /* 0x21 */ KEY_LEFTBRACE,       /*  26 */
 111         /* 0x22 */ KEY_I,               /*  23 */
 112         /* 0x23 */ KEY_P,               /*  25 */
 113         /* 0x24 */ KEY_ENTER,           /*  28 */
 114         /* 0x25 */ KEY_L,               /*  38 */
 115         /* 0x26 */ KEY_J,               /*  36 */
 116         /* 0x27 */ KEY_APOSTROPHE,      /*  40 */
 117         /* 0x28 */ KEY_K,               /*  37 */
 118         /* 0x29 */ KEY_SEMICOLON,       /*  39 */
 119         /* 0x2a */ KEY_BACKSLASH,       /*  43 */
 120         /* 0x2b */ KEY_COMMA,           /*  51 */
 121         /* 0x2c */ KEY_SLASH,           /*  53 */
 122         /* 0x2d */ KEY_N,               /*  49 */
 123         /* 0x2e */ KEY_M,               /*  50 */
 124         /* 0x2f */ KEY_DOT,             /*  52 */
 125         /* 0x30 */ KEY_TAB,             /*  15 */
 126         /* 0x31 */ KEY_SPACE,           /*  57 */
 127         /* 0x32 */ KEY_GRAVE,           /*  41 */
 128         /* 0x33 */ KEY_BACKSPACE,       /*  14 */
 129         /* 0x34 */ KEY_KPENTER,         /*  96 */
 130         /* 0x35 */ KEY_ESC,             /*   1 */
 131         /* 0x36 */ KEY_LEFTCTRL,        /*  29 */
 132         /* 0x37 */ KEY_LEFTMETA,        /* 125 */
 133         /* 0x38 */ KEY_LEFTSHIFT,       /*  42 */
 134         /* 0x39 */ KEY_CAPSLOCK,        /*  58 */
 135         /* 0x3a */ KEY_LEFTALT,         /*  56 */
 136         /* 0x3b */ KEY_LEFT,            /* 105 */
 137         /* 0x3c */ KEY_RIGHT,           /* 106 */
 138         /* 0x3d */ KEY_DOWN,            /* 108 */
 139         /* 0x3e */ KEY_UP,              /* 103 */
 140         /* 0x3f */ 0,
 141         /* 0x40 */ 0,
 142         /* 0x41 */ KEY_KPDOT,           /*  83 */
 143         /* 0x42 */ 0,
 144         /* 0x43 */ KEY_KPASTERISK,      /*  55 */
 145         /* 0x44 */ 0,
 146         /* 0x45 */ KEY_KPPLUS,          /*  78 */
 147         /* 0x46 */ 0,
 148         /* 0x47 */ KEY_NUMLOCK,         /*  69 */
 149         /* 0x48 */ 0,
 150         /* 0x49 */ 0,
 151         /* 0x4a */ 0,
 152         /* 0x4b */ KEY_KPSLASH,         /*  98 */
 153         /* 0x4c */ KEY_KPENTER,         /*  96 */
 154         /* 0x4d */ 0,
 155         /* 0x4e */ KEY_KPMINUS,         /*  74 */
 156         /* 0x4f */ 0,
 157         /* 0x50 */ 0,
 158         /* 0x51 */ KEY_KPEQUAL,         /* 117 */
 159         /* 0x52 */ KEY_KP0,             /*  82 */
 160         /* 0x53 */ KEY_KP1,             /*  79 */
 161         /* 0x54 */ KEY_KP2,             /*  80 */
 162         /* 0x55 */ KEY_KP3,             /*  81 */
 163         /* 0x56 */ KEY_KP4,             /*  75 */
 164         /* 0x57 */ KEY_KP5,             /*  76 */
 165         /* 0x58 */ KEY_KP6,             /*  77 */
 166         /* 0x59 */ KEY_KP7,             /*  71 */
 167         /* 0x5a */ 0,
 168         /* 0x5b */ KEY_KP8,             /*  72 */
 169         /* 0x5c */ KEY_KP9,             /*  73 */
 170         /* 0x5d */ KEY_YEN,             /* 124 */
 171         /* 0x5e */ KEY_RO,              /*  89 */
 172         /* 0x5f */ KEY_KPCOMMA,         /* 121 */
 173         /* 0x60 */ KEY_F5,              /*  63 */
 174         /* 0x61 */ KEY_F6,              /*  64 */
 175         /* 0x62 */ KEY_F7,              /*  65 */
 176         /* 0x63 */ KEY_F3,              /*  61 */
 177         /* 0x64 */ KEY_F8,              /*  66 */
 178         /* 0x65 */ KEY_F9,              /*  67 */
 179         /* 0x66 */ KEY_HANJA,           /* 123 */
 180         /* 0x67 */ KEY_F11,             /*  87 */
 181         /* 0x68 */ KEY_HANGEUL,         /* 122 */
 182         /* 0x69 */ KEY_SYSRQ,           /*  99 */
 183         /* 0x6a */ 0,
 184         /* 0x6b */ KEY_SCROLLLOCK,      /*  70 */
 185         /* 0x6c */ 0,
 186         /* 0x6d */ KEY_F10,             /*  68 */
 187         /* 0x6e */ KEY_COMPOSE,         /* 127 */
 188         /* 0x6f */ KEY_F12,             /*  88 */
 189         /* 0x70 */ 0,
 190         /* 0x71 */ KEY_PAUSE,           /* 119 */
 191         /* 0x72 */ KEY_INSERT,          /* 110 */
 192         /* 0x73 */ KEY_HOME,            /* 102 */
 193         /* 0x74 */ KEY_PAGEUP,          /* 104 */
 194         /* 0x75 */ KEY_DELETE,          /* 111 */
 195         /* 0x76 */ KEY_F4,              /*  62 */
 196         /* 0x77 */ KEY_END,             /* 107 */
 197         /* 0x78 */ KEY_F2,              /*  60 */
 198         /* 0x79 */ KEY_PAGEDOWN,        /* 109 */
 199         /* 0x7a */ KEY_F1,              /*  59 */
 200         /* 0x7b */ KEY_RIGHTSHIFT,      /*  54 */
 201         /* 0x7c */ KEY_RIGHTALT,        /* 100 */
 202         /* 0x7d */ KEY_RIGHTCTRL,       /*  97 */
 203         /* 0x7e */ KEY_RIGHTMETA,       /* 126 */
 204         /* 0x7f */ KEY_POWER,           /* 116 */
 205 };
 206
 207 struct adbhid {
 208         struct input_dev *input;
 209         int id;
 210         int default_id;
 211         int original_handler_id;
 212         int current_handler_id;
 213         int mouse_kind;
 214         unsigned char *keycode;
 215         char name[64];
 216         char phys[32];
 217         int flags;
 218 };
 219
 220 #define FLAG_FN_KEY_PRESSED     0x00000001
 221 #define FLAG_POWER_FROM_FN      0x00000002
 222 #define FLAG_EMU_FWDEL_DOWN     0x00000004
 223
 224 static struct adbhid *adbhid[16];
 225
 226 static void adbhid_probe(void);
 227
 228 static void adbhid_input_keycode(int, int, int, struct pt_regs *);
 229
 230 static void init_trackpad(int id);
 231 static void init_trackball(int id);
 232 static void init_turbomouse(int id);
 233 static void init_microspeed(int id);
 234 static void init_ms_a3(int id);
 235
 236 static struct adb_ids keyboard_ids;
 237 static struct adb_ids mouse_ids;
 238 static struct adb_ids buttons_ids;
 239
 240 #ifdef CONFIG_PMAC_BACKLIGHT
 241 /* Exported to via-pmu.c */
 242 int disable_kernel_backlight = 0;
 243 #endif /* CONFIG_PMAC_BACKLIGHT */
 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, struct pt_regs *regs, 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, regs);
 278         if (!(data[2] == 0xff || (data[2] == 0x7f && data[1] == 0x7f)))
 279                 adbhid_input_keycode(id, data[2], 0, regs);
 280 }
 281
 282 static void
 283 adbhid_input_keycode(int id, int keycode, int repeat, struct pt_regs *regs)
 284 {
 285         struct adbhid *ahid = adbhid[id];
 286         int up_flag;
 287
 288         up_flag = (keycode & 0x80);
 289         keycode &= 0x7f;
 290
 291         switch (keycode) {
 292         case ADB_KEY_CAPSLOCK: /* Generate down/up events for CapsLock everytime. */
 293                 input_regs(ahid->input, regs);
 294                 input_report_key(ahid->input, KEY_CAPSLOCK, 1);
 295                 input_report_key(ahid->input, KEY_CAPSLOCK, 0);
 296                 input_sync(ahid->input);
 297                 return;
 298 #ifdef CONFIG_PPC_PMAC
 299         case ADB_KEY_POWER_OLD: /* Power key on PBook 3400 needs remapping */
 300                 switch(pmac_call_feature(PMAC_FTR_GET_MB_INFO,
 301                         NULL, PMAC_MB_INFO_MODEL, 0)) {
 302                 case PMAC_TYPE_COMET:
 303                 case PMAC_TYPE_HOOPER:
 304                 case PMAC_TYPE_KANGA:
 305                         keycode = ADB_KEY_POWER;
 306                 }
 307                 break;
 308         case ADB_KEY_POWER:
 309                 /* Fn + Command will produce a bogus "power" keycode */
 310                 if (ahid->flags & FLAG_FN_KEY_PRESSED) {
 311                         keycode = ADB_KEY_CMD;
 312                         if (up_flag)
 313                                 ahid->flags &= ~FLAG_POWER_FROM_FN;
 314                         else
 315                                 ahid->flags |= FLAG_POWER_FROM_FN;
 316                 } else if (ahid->flags & FLAG_POWER_FROM_FN) {
 317                         keycode = ADB_KEY_CMD;
 318                         ahid->flags &= ~FLAG_POWER_FROM_FN;
 319                 }
 320                 break;
 321         case ADB_KEY_FN:
 322                 /* Keep track of the Fn key state */
 323                 if (up_flag) {
 324                         ahid->flags &= ~FLAG_FN_KEY_PRESSED;
 325                         /* Emulate Fn+delete = forward delete */
 326                         if (ahid->flags & FLAG_EMU_FWDEL_DOWN) {
 327                                 ahid->flags &= ~FLAG_EMU_FWDEL_DOWN;
 328                                 keycode = ADB_KEY_FWDEL;
 329                                 break;
 330                         }
 331                 } else
 332                         ahid->flags |= FLAG_FN_KEY_PRESSED;
 333                 /* Swallow the key press */
 334                 return;
 335         case ADB_KEY_DEL:
 336                 /* Emulate Fn+delete = forward delete */
 337                 if (ahid->flags & FLAG_FN_KEY_PRESSED) {
 338                         keycode = ADB_KEY_FWDEL;
 339                         if (up_flag)
 340                                 ahid->flags &= ~FLAG_EMU_FWDEL_DOWN;
 341                         else
 342                                 ahid->flags |= FLAG_EMU_FWDEL_DOWN;
 343                 }
 344                 break;
 345 #endif /* CONFIG_PPC_PMAC */
 346         }
 347
 348         if (adbhid[id]->keycode[keycode]) {
 349                 input_regs(adbhid[id]->input, regs);
 350                 input_report_key(adbhid[id]->input,
 351                                  adbhid[id]->keycode[keycode], !up_flag);
 352                 input_sync(adbhid[id]->input);
 353         } else
 354                 printk(KERN_INFO "Unhandled ADB key (scancode %#02x) %s.\n", keycode,
 355                        up_flag ? "released" : "pressed");
 356
 357 }
 358
 359 static void
 360 adbhid_mouse_input(unsigned char *data, int nb, struct pt_regs *regs, int autopoll)
 361 {
 362         int id = (data[0] >> 4) & 0x0f;
 363
 364         if (!adbhid[id]) {
 365                 printk(KERN_ERR "ADB HID on ID %d not yet registered\n", id);
 366                 return;
 367         }
 368
 369   /*
 370     Handler 1 -- 100cpi original Apple mouse protocol.
 371     Handler 2 -- 200cpi original Apple mouse protocol.
 372
 373     For Apple's standard one-button mouse protocol the data array will
 374     contain the following values:
 375
 376                 BITS    COMMENTS
 377     data[0] = dddd 1100 ADB command: Talk, register 0, for device dddd.
 378     data[1] = bxxx xxxx First button and x-axis motion.
 379     data[2] = byyy yyyy Second button and y-axis motion.
 380
 381     Handler 4 -- Apple Extended mouse protocol.
 382
 383     For Apple's 3-button mouse protocol the data array will contain the
 384     following values:
 385
 386                 BITS    COMMENTS
 387     data[0] = dddd 1100 ADB command: Talk, register 0, for device dddd.
 388     data[1] = bxxx xxxx Left button and x-axis motion.
 389     data[2] = byyy yyyy Second button and y-axis motion.
 390     data[3] = byyy bxxx Third button and fourth button.  Y is additional
 391               high bits of y-axis motion.  XY is additional
 392               high bits of x-axis motion.
 393
 394     MacAlly 2-button mouse protocol.
 395
 396     For MacAlly 2-button mouse protocol the data array will contain the
 397     following values:
 398
 399                 BITS    COMMENTS
 400     data[0] = dddd 1100 ADB command: Talk, register 0, for device dddd.
 401     data[1] = bxxx xxxx Left button and x-axis motion.
 402     data[2] = byyy yyyy Right button and y-axis motion.
 403     data[3] = ???? ???? unknown
 404     data[4] = ???? ???? unknown
 405
 406   */
 407
 408         /* If it's a trackpad, we alias the second button to the first.
 409            NOTE: Apple sends an ADB flush command to the trackpad when
 410                  the first (the real) button is released. We could do
 411                  this here using async flush requests.
 412         */
 413         switch (adbhid[id]->mouse_kind)
 414         {
 415             case ADBMOUSE_TRACKPAD:
 416                 data[1] = (data[1] & 0x7f) | ((data[1] & data[2]) & 0x80);
 417                 data[2] = data[2] | 0x80;
 418                 break;
 419             case ADBMOUSE_MICROSPEED:
 420                 data[1] = (data[1] & 0x7f) | ((data[3] & 0x01) << 7);
 421                 data[2] = (data[2] & 0x7f) | ((data[3] & 0x02) << 6);
 422                 data[3] = (data[3] & 0x77) | ((data[3] & 0x04) << 5)
 423                         | (data[3] & 0x08);
 424                 break;
 425             case ADBMOUSE_TRACKBALLPRO:
 426                 data[1] = (data[1] & 0x7f) | (((data[3] & 0x04) << 5)
 427                         & ((data[3] & 0x08) << 4));
 428                 data[2] = (data[2] & 0x7f) | ((data[3] & 0x01) << 7);
 429                 data[3] = (data[3] & 0x77) | ((data[3] & 0x02) << 6);
 430                 break;
 431             case ADBMOUSE_MS_A3:
 432                 data[1] = (data[1] & 0x7f) | ((data[3] & 0x01) << 7);
 433                 data[2] = (data[2] & 0x7f) | ((data[3] & 0x02) << 6);
 434                 data[3] = ((data[3] & 0x04) << 5);
 435                 break;
 436             case ADBMOUSE_MACALLY2:
 437                 data[3] = (data[2] & 0x80) ? 0x80 : 0x00;
 438                 data[2] |= 0x80;  /* Right button is mapped as button 3 */
 439                 nb=4;
 440                 break;
 441         }
 442
 443         input_regs(adbhid[id]->input, regs);
 444
 445         input_report_key(adbhid[id]->input, BTN_LEFT,   !((data[1] >> 7) & 1));
 446         input_report_key(adbhid[id]->input, BTN_MIDDLE, !((data[2] >> 7) & 1));
 447
 448         if (nb >= 4 && adbhid[id]->mouse_kind != ADBMOUSE_TRACKPAD)
 449                 input_report_key(adbhid[id]->input, BTN_RIGHT,  !((data[3] >> 7) & 1));
 450
 451         input_report_rel(adbhid[id]->input, REL_X,
 452                          ((data[2]&0x7f) < 64 ? (data[2]&0x7f) : (data[2]&0x7f)-128 ));
 453         input_report_rel(adbhid[id]->input, REL_Y,
 454                          ((data[1]&0x7f) < 64 ? (data[1]&0x7f) : (data[1]&0x7f)-128 ));
 455
 456         input_sync(adbhid[id]->input);
 457 }
 458
 459 static void
 460 adbhid_buttons_input(unsigned char *data, int nb, struct pt_regs *regs, int autopoll)
 461 {
 462         int id = (data[0] >> 4) & 0x0f;
 463
 464         if (!adbhid[id]) {
 465                 printk(KERN_ERR "ADB HID on ID %d not yet registered\n", id);
 466                 return;
 467         }
 468
 469         input_regs(adbhid[id]->input, regs);
 470
 471         switch (adbhid[id]->original_handler_id) {
 472         default:
 473         case 0x02: /* Adjustable keyboard button device */
 474           {
 475                 int down = (data[1] == (data[1] & 0xf));
 476
 477                 switch (data[1] & 0x0f) {
 478                 case 0x0:       /* microphone */
 479                         input_report_key(adbhid[id]->input, KEY_SOUND, down);
 480                         break;
 481
 482                 case 0x1:       /* mute */
 483                         input_report_key(adbhid[id]->input, KEY_MUTE, down);
 484                         break;
 485
 486                 case 0x2:       /* volume decrease */
 487                         input_report_key(adbhid[id]->input, KEY_VOLUMEDOWN, down);
 488                         break;
 489
 490                 case 0x3:       /* volume increase */
 491                         input_report_key(adbhid[id]->input, KEY_VOLUMEUP, down);
 492                         break;
 493
 494                 default:
 495                         printk(KERN_INFO "Unhandled ADB_MISC event %02x, %02x, %02x, %02x\n",
 496                                data[0], data[1], data[2], data[3]);
 497                         break;
 498                 }
 499           }
 500           break;
 501
 502         case 0x1f: /* Powerbook button device */
 503           {
 504                 int down = (data[1] == (data[1] & 0xf));
 505
 506                 /*
 507                  * XXX: Where is the contrast control for the passive?
 508                  *  -- Cort
 509                  */
 510
 511                 switch (data[1] & 0x0f) {
 512                 case 0x8:       /* mute */
 513                         input_report_key(adbhid[id]->input, KEY_MUTE, down);
 514                         break;
 515
 516                 case 0x7:       /* volume decrease */
 517                         input_report_key(adbhid[id]->input, KEY_VOLUMEDOWN, down);
 518                         break;
 519
 520                 case 0x6:       /* volume increase */
 521                         input_report_key(adbhid[id]->input, KEY_VOLUMEUP, down);
 522                         break;
 523
 524                 case 0xb:       /* eject */
 525                         input_report_key(adbhid[id]->input, KEY_EJECTCD, down);
 526                         break;
 527
 528                 case 0xa:       /* brightness decrease */
 529 #ifdef CONFIG_PMAC_BACKLIGHT
 530                         if (!disable_kernel_backlight && down)
 531                                 pmac_backlight_key_down();
 532 #endif
 533                         input_report_key(adbhid[id]->input, KEY_BRIGHTNESSDOWN, down);
 534                         break;
 535
 536                 case 0x9:       /* brightness increase */
 537 #ifdef CONFIG_PMAC_BACKLIGHT
 538                         if (!disable_kernel_backlight && down)
 539                                 pmac_backlight_key_up();
 540 #endif
 541                         input_report_key(adbhid[id]->input, KEY_BRIGHTNESSUP, down);
 542                         break;
 543
 544                 case 0xc:       /* videomode switch */
 545                         input_report_key(adbhid[id]->input, KEY_SWITCHVIDEOMODE, down);
 546                         break;
 547
 548                 case 0xd:       /* keyboard illumination toggle */
 549                         input_report_key(adbhid[id]->input, KEY_KBDILLUMTOGGLE, down);
 550                         break;
 551
 552                 case 0xe:       /* keyboard illumination decrease */
 553                         input_report_key(adbhid[id]->input, KEY_KBDILLUMDOWN, down);
 554                         break;
 555
 556                 case 0xf:
 557                         switch (data[1]) {
 558                         case 0x8f:
 559                         case 0x0f:
 560                                 /* keyboard illumination increase */
 561                                 input_report_key(adbhid[id]->input, KEY_KBDILLUMUP, down);
 562                                 break;
 563
 564                         case 0x7f:
 565                         case 0xff:
 566                                 /* keypad overlay toogle */
 567                                 break;
 568
 569                         default:
 570                                 printk(KERN_INFO "Unhandled ADB_MISC event %02x, %02x, %02x, %02x\n",
 571                                        data[0], data[1], data[2], data[3]);
 572                                 break;
 573                         }
 574                         break;
 575                 default:
 576                         printk(KERN_INFO "Unhandled ADB_MISC event %02x, %02x, %02x, %02x\n",
 577                                data[0], data[1], data[2], data[3]);
 578                         break;
 579                 }
 580           }
 581           break;
 582         }
 583
 584         input_sync(adbhid[id]->input);
 585 }
 586
 587 static struct adb_request led_request;
 588 static int leds_pending[16];
 589 static int leds_req_pending;
 590 static int pending_devs[16];
 591 static int pending_led_start=0;
 592 static int pending_led_end=0;
 593 static DEFINE_SPINLOCK(leds_lock);
 594
 595 static void leds_done(struct adb_request *req)
 596 {
 597         int leds = 0, device = 0, pending = 0;
 598         unsigned long flags;
 599
 600         spin_lock_irqsave(&leds_lock, flags);
 601
 602         if (pending_led_start != pending_led_end) {
 603                 device = pending_devs[pending_led_start];
 604                 leds = leds_pending[device] & 0xff;
 605                 leds_pending[device] = 0;
 606                 pending_led_start++;
 607                 pending_led_start = (pending_led_start < 16) ? pending_led_start : 0;
 608                 pending = leds_req_pending;
 609         } else
 610                 leds_req_pending = 0;
 611         spin_unlock_irqrestore(&leds_lock, flags);
 612         if (pending)
 613                 adb_request(&led_request, leds_done, 0, 3,
 614                             ADB_WRITEREG(device, KEYB_LEDREG), 0xff, ~leds);
 615 }
 616
 617 static void real_leds(unsigned char leds, int device)
 618 {
 619         unsigned long flags;
 620
 621         spin_lock_irqsave(&leds_lock, flags);
 622         if (!leds_req_pending) {
 623                 leds_req_pending = 1;
 624                 spin_unlock_irqrestore(&leds_lock, flags);
 625                 adb_request(&led_request, leds_done, 0, 3,
 626                             ADB_WRITEREG(device, KEYB_LEDREG), 0xff, ~leds);
 627                 return;
 628         } else {
 629                 if (!(leds_pending[device] & 0x100)) {
 630                         pending_devs[pending_led_end] = device;
 631                         pending_led_end++;
 632                         pending_led_end = (pending_led_end < 16) ? pending_led_end : 0;
 633                 }
 634                 leds_pending[device] = leds | 0x100;
 635         }
 636         spin_unlock_irqrestore(&leds_lock, flags);
 637 }
 638
 639 /*
 640  * Event callback from the input module. Events that change the state of
 641  * the hardware are processed here.
 642  */
 643 static int adbhid_kbd_event(struct input_dev *dev, unsigned int type, unsigned int code, int value)
 644 {
 645         struct adbhid *adbhid = dev->private;
 646         unsigned char leds;
 647
 648         switch (type) {
 649         case EV_LED:
 650           leds = (test_bit(LED_SCROLLL, dev->led) ? 4 : 0)
 651                | (test_bit(LED_NUML,    dev->led) ? 1 : 0)
 652                | (test_bit(LED_CAPSL,   dev->led) ? 2 : 0);
 653           real_leds(leds, adbhid->id);
 654           return 0;
 655         }
 656
 657         return -1;
 658 }
 659
 660 static int
 661 adb_message_handler(struct notifier_block *this, unsigned long code, void *x)
 662 {
 663         switch (code) {
 664         case ADB_MSG_PRE_RESET:
 665         case ADB_MSG_POWERDOWN:
 666                 /* Stop the repeat timer. Autopoll is already off at this point */
 667                 {
 668                         int i;
 669                         for (i = 1; i < 16; i++) {
 670                                 if (adbhid[i])
 671                                         del_timer_sync(&adbhid[i]->input->timer);
 672                         }
 673                 }
 674
 675                 /* Stop pending led requests */
 676                 while(leds_req_pending)
 677                         adb_poll();
 678                 break;
 679
 680         case ADB_MSG_POST_RESET:
 681                 adbhid_probe();
 682                 break;
 683         }
 684         return NOTIFY_DONE;
 685 }
 686
 687 static int
 688 adbhid_input_register(int id, int default_id, int original_handler_id,
 689                       int current_handler_id, int mouse_kind)
 690 {
 691         struct adbhid *hid;
 692         struct input_dev *input_dev;
 693         int err;
 694         int i;
 695
 696         if (adbhid[id]) {
 697                 printk(KERN_ERR "Trying to reregister ADB HID on ID %d\n", id);
 698                 return -EEXIST;
 699         }
 700
 701         adbhid[id] = hid = kzalloc(sizeof(struct adbhid), GFP_KERNEL);
 702         input_dev = input_allocate_device();
 703         if (!hid || !input_dev) {
 704                 err = -ENOMEM;
 705                 goto fail;
 706
 707         }
 708
 709         sprintf(hid->phys, "adb%d:%d.%02x/input", id, default_id, original_handler_id);
 710
 711         hid->input = input_dev;
 712         hid->id = default_id;
 713         hid->original_handler_id = original_handler_id;
 714         hid->current_handler_id = current_handler_id;
 715         hid->mouse_kind = mouse_kind;
 716         hid->flags = 0;
 717         input_dev->private = hid;
 718         input_dev->name = hid->name;
 719         input_dev->phys = hid->phys;
 720         input_dev->id.bustype = BUS_ADB;
 721         input_dev->id.vendor = 0x0001;
 722         input_dev->id.product = (id << 12) | (default_id << 8) | original_handler_id;
 723         input_dev->id.version = 0x0100;
 724
 725         switch (default_id) {
 726         case ADB_KEYBOARD:
 727                 hid->keycode = kmalloc(sizeof(adb_to_linux_keycodes), GFP_KERNEL);
 728                 if (!hid->keycode) {
 729                         err = -ENOMEM;
 730                         goto fail;
 731                 }
 732
 733                 sprintf(hid->name, "ADB keyboard");
 734
 735                 memcpy(hid->keycode, adb_to_linux_keycodes, sizeof(adb_to_linux_keycodes));
 736
 737                 printk(KERN_INFO "Detected ADB keyboard, type ");
 738                 switch (original_handler_id) {
 739                 default:
 740                         printk("<unknown>.\n");
 741                         input_dev->id.version = ADB_KEYBOARD_UNKNOWN;
 742                         break;
 743
 744                 case 0x01: case 0x02: case 0x03: case 0x06: case 0x08:
 745                 case 0x0C: case 0x10: case 0x18: case 0x1B: case 0x1C:
 746                 case 0xC0: case 0xC3: case 0xC6:
 747                         printk("ANSI.\n");
 748                         input_dev->id.version = ADB_KEYBOARD_ANSI;
 749                         break;
 750
 751                 case 0x04: case 0x05: case 0x07: case 0x09: case 0x0D:
 752                 case 0x11: case 0x14: case 0x19: case 0x1D: case 0xC1:
 753                 case 0xC4: case 0xC7:
 754                         printk("ISO, swapping keys.\n");
 755                         input_dev->id.version = ADB_KEYBOARD_ISO;
 756                         i = hid->keycode[10];
 757                         hid->keycode[10] = hid->keycode[50];
 758                         hid->keycode[50] = i;
 759                         break;
 760
 761                 case 0x12: case 0x15: case 0x16: case 0x17: case 0x1A:
 762                 case 0x1E: case 0xC2: case 0xC5: case 0xC8: case 0xC9:
 763                         printk("JIS.\n");
 764                         input_dev->id.version = ADB_KEYBOARD_JIS;
 765                         break;
 766                 }
 767
 768                 for (i = 0; i < 128; i++)
 769                         if (hid->keycode[i])
 770                                 set_bit(hid->keycode[i], input_dev->keybit);
 771
 772                 input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_LED) | BIT(EV_REP);
 773                 input_dev->ledbit[0] = BIT(LED_SCROLLL) | BIT(LED_CAPSL) | BIT(LED_NUML);
 774                 input_dev->event = adbhid_kbd_event;
 775                 input_dev->keycodemax = 127;
 776                 input_dev->keycodesize = 1;
 777                 break;
 778
 779         case ADB_MOUSE:
 780                 sprintf(hid->name, "ADB mouse");
 781
 782                 input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_REL);
 783                 input_dev->keybit[LONG(BTN_MOUSE)] = BIT(BTN_LEFT) | BIT(BTN_MIDDLE) | BIT(BTN_RIGHT);
 784                 input_dev->relbit[0] = BIT(REL_X) | BIT(REL_Y);
 785                 break;
 786
 787         case ADB_MISC:
 788                 switch (original_handler_id) {
 789                 case 0x02: /* Adjustable keyboard button device */
 790                         sprintf(hid->name, "ADB adjustable keyboard buttons");
 791                         input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_REP);
 792                         set_bit(KEY_SOUND, input_dev->keybit);
 793                         set_bit(KEY_MUTE, input_dev->keybit);
 794                         set_bit(KEY_VOLUMEUP, input_dev->keybit);
 795                         set_bit(KEY_VOLUMEDOWN, input_dev->keybit);
 796                         break;
 797                 case 0x1f: /* Powerbook button device */
 798                         sprintf(hid->name, "ADB Powerbook buttons");
 799                         input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_REP);
 800                         set_bit(KEY_MUTE, input_dev->keybit);
 801                         set_bit(KEY_VOLUMEUP, input_dev->keybit);
 802                         set_bit(KEY_VOLUMEDOWN, input_dev->keybit);
 803                         set_bit(KEY_BRIGHTNESSUP, input_dev->keybit);
 804                         set_bit(KEY_BRIGHTNESSDOWN, input_dev->keybit);
 805                         set_bit(KEY_EJECTCD, input_dev->keybit);
 806                         set_bit(KEY_SWITCHVIDEOMODE, input_dev->keybit);
 807                         set_bit(KEY_KBDILLUMTOGGLE, input_dev->keybit);
 808                         set_bit(KEY_KBDILLUMDOWN, input_dev->keybit);
 809                         set_bit(KEY_KBDILLUMUP, input_dev->keybit);
 810                         break;
 811                 }
 812                 if (hid->name[0])
 813                         break;
 814                 /* else fall through */
 815
 816         default:
 817                 printk(KERN_INFO "Trying to register unknown ADB device to input layer.\n");
 818                 err = -ENODEV;
 819                 goto fail;
 820         }
 821
 822         input_dev->keycode = hid->keycode;
 823
 824         input_register_device(input_dev);
 825
 826         if (default_id == ADB_KEYBOARD) {
 827                 /* HACK WARNING!! This should go away as soon there is an utility
 828                  * to control that for event devices.
 829                  */
 830                 input_dev->rep[REP_DELAY] = 500;   /* input layer default: 250 */
 831                 input_dev->rep[REP_PERIOD] = 66; /* input layer default: 33 */
 832         }
 833
 834         return 0;
 835
 836  fail:  input_free_device(input_dev);
 837         kfree(hid);
 838         adbhid[id] = NULL;
 839         return err;
 840 }
 841
 842 static void adbhid_input_unregister(int id)
 843 {
 844         input_unregister_device(adbhid[id]->input);
 845         kfree(adbhid[id]->keycode);
 846         kfree(adbhid[id]);
 847         adbhid[id] = NULL;
 848 }
 849
 850
 851 static u16
 852 adbhid_input_reregister(int id, int default_id, int org_handler_id,
 853                         int cur_handler_id, int mk)
 854 {
 855         if (adbhid[id]) {
 856                 if (adbhid[id]->input->id.product !=
 857                     ((id << 12)|(default_id << 8)|org_handler_id)) {
 858                         adbhid_input_unregister(id);
 859                         adbhid_input_register(id, default_id, org_handler_id,
 860                                               cur_handler_id, mk);
 861                 }
 862         } else
 863                 adbhid_input_register(id, default_id, org_handler_id,
 864                                       cur_handler_id, mk);
 865         return 1<<id;
 866 }
 867
 868 static void
 869 adbhid_input_devcleanup(u16 exist)
 870 {
 871         int i;
 872         for(i=1; i<16; i++)
 873                 if (adbhid[i] && !(exist&(1<<i)))
 874                         adbhid_input_unregister(i);
 875 }
 876
 877 static void
 878 adbhid_probe(void)
 879 {
 880         struct adb_request req;
 881         int i, default_id, org_handler_id, cur_handler_id;
 882         u16 reg = 0;
 883
 884         adb_register(ADB_MOUSE, 0, &mouse_ids, adbhid_mouse_input);
 885         adb_register(ADB_KEYBOARD, 0, &keyboard_ids, adbhid_keyboard_input);
 886         adb_register(ADB_MISC, 0, &buttons_ids, adbhid_buttons_input);
 887
 888         for (i = 0; i < keyboard_ids.nids; i++) {
 889                 int id = keyboard_ids.id[i];
 890
 891                 adb_get_infos(id, &default_id, &org_handler_id);
 892
 893                 /* turn off all leds */
 894                 adb_request(&req, NULL, ADBREQ_SYNC, 3,
 895                             ADB_WRITEREG(id, KEYB_LEDREG), 0xff, 0xff);
 896
 897                 /* Enable full feature set of the keyboard
 898                    ->get it to send separate codes for left and right shift,
 899                    control, option keys */
 900 #if 0           /* handler 5 doesn't send separate codes for R modifiers */
 901                 if (adb_try_handler_change(id, 5))
 902                         printk("ADB keyboard at %d, handler set to 5\n", id);
 903                 else
 904 #endif
 905                 if (adb_try_handler_change(id, 3))
 906                         printk("ADB keyboard at %d, handler set to 3\n", id);
 907                 else
 908                         printk("ADB keyboard at %d, handler 1\n", id);
 909
 910                 adb_get_infos(id, &default_id, &cur_handler_id);
 911                 reg |= adbhid_input_reregister(id, default_id, org_handler_id,
 912                                                cur_handler_id, 0);
 913         }
 914
 915         for (i = 0; i < buttons_ids.nids; i++) {
 916                 int id = buttons_ids.id[i];
 917
 918                 adb_get_infos(id, &default_id, &org_handler_id);
 919                 reg |= adbhid_input_reregister(id, default_id, org_handler_id,
 920                                                org_handler_id, 0);
 921         }
 922
 923         /* Try to switch all mice to handler 4, or 2 for three-button
 924            mode and full resolution. */
 925         for (i = 0; i < mouse_ids.nids; i++) {
 926                 int id = mouse_ids.id[i];
 927                 int mouse_kind;
 928
 929                 adb_get_infos(id, &default_id, &org_handler_id);
 930
 931                 if (adb_try_handler_change(id, 4)) {
 932                         printk("ADB mouse at %d, handler set to 4", id);
 933                         mouse_kind = ADBMOUSE_EXTENDED;
 934                 }
 935                 else if (adb_try_handler_change(id, 0x2F)) {
 936                         printk("ADB mouse at %d, handler set to 0x2F", id);
 937                         mouse_kind = ADBMOUSE_MICROSPEED;
 938                 }
 939                 else if (adb_try_handler_change(id, 0x42)) {
 940                         printk("ADB mouse at %d, handler set to 0x42", id);
 941                         mouse_kind = ADBMOUSE_TRACKBALLPRO;
 942                 }
 943                 else if (adb_try_handler_change(id, 0x66)) {
 944                         printk("ADB mouse at %d, handler set to 0x66", id);
 945                         mouse_kind = ADBMOUSE_MICROSPEED;
 946                 }
 947                 else if (adb_try_handler_change(id, 0x5F)) {
 948                         printk("ADB mouse at %d, handler set to 0x5F", id);
 949                         mouse_kind = ADBMOUSE_MICROSPEED;
 950                 }
 951                 else if (adb_try_handler_change(id, 3)) {
 952                         printk("ADB mouse at %d, handler set to 3", id);
 953                         mouse_kind = ADBMOUSE_MS_A3;
 954                 }
 955                 else if (adb_try_handler_change(id, 2)) {
 956                         printk("ADB mouse at %d, handler set to 2", id);
 957                         mouse_kind = ADBMOUSE_STANDARD_200;
 958                 }
 959                 else {
 960                         printk("ADB mouse at %d, handler 1", id);
 961                         mouse_kind = ADBMOUSE_STANDARD_100;
 962                 }
 963
 964                 if ((mouse_kind == ADBMOUSE_TRACKBALLPRO)
 965                     || (mouse_kind == ADBMOUSE_MICROSPEED)) {
 966                         init_microspeed(id);
 967                 } else if (mouse_kind == ADBMOUSE_MS_A3) {
 968                         init_ms_a3(id);
 969                 } else if (mouse_kind ==  ADBMOUSE_EXTENDED) {
 970                         /*
 971                          * Register 1 is usually used for device
 972                          * identification.  Here, we try to identify
 973                          * a known device and call the appropriate
 974                          * init function.
 975                          */
 976                         adb_request(&req, NULL, ADBREQ_SYNC | ADBREQ_REPLY, 1,
 977                                     ADB_READREG(id, 1));
 978
 979                         if ((req.reply_len) &&
 980                             (req.reply[1] == 0x9a) && ((req.reply[2] == 0x21)
 981                                 || (req.reply[2] == 0x20))) {
 982                                 mouse_kind = ADBMOUSE_TRACKBALL;
 983                                 init_trackball(id);
 984                         }
 985                         else if ((req.reply_len >= 4) &&
 986                             (req.reply[1] == 0x74) && (req.reply[2] == 0x70) &&
 987                             (req.reply[3] == 0x61) && (req.reply[4] == 0x64)) {
 988                                 mouse_kind = ADBMOUSE_TRACKPAD;
 989                                 init_trackpad(id);
 990                         }
 991                         else if ((req.reply_len >= 4) &&
 992                             (req.reply[1] == 0x4b) && (req.reply[2] == 0x4d) &&
 993                             (req.reply[3] == 0x4c) && (req.reply[4] == 0x31)) {
 994                                 mouse_kind = ADBMOUSE_TURBOMOUSE5;
 995                                 init_turbomouse(id);
 996                         }
 997                         else if ((req.reply_len == 9) &&
 998                             (req.reply[1] == 0x4b) && (req.reply[2] == 0x4f) &&
 999                             (req.reply[3] == 0x49) && (req.reply[4] == 0x54)) {
1000                                 if (adb_try_handler_change(id, 0x42)) {
1001                                         printk("\nADB MacAlly 2-button mouse at %d, handler set to 0x42", id);
1002                                         mouse_kind = ADBMOUSE_MACALLY2;
1003                                 }
1004                         }
1005                 }
1006                 printk("\n");
1007
1008                 adb_get_infos(id, &default_id, &cur_handler_id);
1009                 reg |= adbhid_input_reregister(id, default_id, org_handler_id,
1010                                                cur_handler_id, mouse_kind);
1011         }
1012         adbhid_input_devcleanup(reg);
1013 }
1014
1015 static void
1016 init_trackpad(int id)
1017 {
1018         struct adb_request req;
1019         unsigned char r1_buffer[8];
1020
1021         printk(" (trackpad)");
1022
1023         adb_request(&req, NULL, ADBREQ_SYNC | ADBREQ_REPLY, 1,
1024                     ADB_READREG(id,1));
1025         if (req.reply_len < 8)
1026             printk("bad length for reg. 1\n");
1027         else
1028         {
1029             memcpy(r1_buffer, &req.reply[1], 8);
1030
1031             adb_request(&req, NULL, ADBREQ_SYNC, 9,
1032                 ADB_WRITEREG(id,1),
1033                     r1_buffer[0],
1034                     r1_buffer[1],
1035                     r1_buffer[2],
1036                     r1_buffer[3],
1037                     r1_buffer[4],
1038                     r1_buffer[5],
1039                     0x0d,
1040                     r1_buffer[7]);
1041
1042             adb_request(&req, NULL, ADBREQ_SYNC, 9,
1043                 ADB_WRITEREG(id,2),
1044                     0x99,
1045                     0x94,
1046                     0x19,
1047                     0xff,
1048                     0xb2,
1049                     0x8a,
1050                     0x1b,
1051                     0x50);
1052
1053             adb_request(&req, NULL, ADBREQ_SYNC, 9,
1054                 ADB_WRITEREG(id,1),
1055                     r1_buffer[0],
1056                     r1_buffer[1],
1057                     r1_buffer[2],
1058                     r1_buffer[3],
1059                     r1_buffer[4],
1060                     r1_buffer[5],
1061                     0x03, /*r1_buffer[6],*/
1062                     r1_buffer[7]);
1063
1064             /* Without this flush, the trackpad may be locked up */
1065             adb_request(&req, NULL, ADBREQ_SYNC, 1, ADB_FLUSH(id));
1066         }
1067 }
1068
1069 static void
1070 init_trackball(int id)
1071 {
1072         struct adb_request req;
1073
1074         printk(" (trackman/mouseman)");
1075
1076         adb_request(&req, NULL, ADBREQ_SYNC, 3,
1077         ADB_WRITEREG(id,1), 00,0x81);
1078
1079         adb_request(&req, NULL, ADBREQ_SYNC, 3,
1080         ADB_WRITEREG(id,1), 01,0x81);
1081
1082         adb_request(&req, NULL, ADBREQ_SYNC, 3,
1083         ADB_WRITEREG(id,1), 02,0x81);
1084
1085         adb_request(&req, NULL, ADBREQ_SYNC, 3,
1086         ADB_WRITEREG(id,1), 03,0x38);
1087
1088         adb_request(&req, NULL, ADBREQ_SYNC, 3,
1089         ADB_WRITEREG(id,1), 00,0x81);
1090
1091         adb_request(&req, NULL, ADBREQ_SYNC, 3,
1092         ADB_WRITEREG(id,1), 01,0x81);
1093
1094         adb_request(&req, NULL, ADBREQ_SYNC, 3,
1095         ADB_WRITEREG(id,1), 02,0x81);
1096
1097         adb_request(&req, NULL, ADBREQ_SYNC, 3,
1098         ADB_WRITEREG(id,1), 03,0x38);
1099 }
1100
1101 static void
1102 init_turbomouse(int id)
1103 {
1104         struct adb_request req;
1105
1106         printk(" (TurboMouse 5)");
1107
1108         adb_request(&req, NULL, ADBREQ_SYNC, 1, ADB_FLUSH(id));
1109
1110         adb_request(&req, NULL, ADBREQ_SYNC, 1, ADB_FLUSH(3));
1111
1112         adb_request(&req, NULL, ADBREQ_SYNC, 9,
1113         ADB_WRITEREG(3,2),
1114             0xe7,
1115             0x8c,
1116             0,
1117             0,
1118             0,
1119             0xff,
1120             0xff,
1121             0x94);
1122
1123         adb_request(&req, NULL, ADBREQ_SYNC, 1, ADB_FLUSH(3));
1124
1125         adb_request(&req, NULL, ADBREQ_SYNC, 9,
1126         ADB_WRITEREG(3,2),
1127             0xa5,
1128             0x14,
1129             0,
1130             0,
1131             0x69,
1132             0xff,
1133             0xff,
1134             0x27);
1135 }
1136
1137 static void
1138 init_microspeed(int id)
1139 {
1140         struct adb_request req;
1141
1142         printk(" (Microspeed/MacPoint or compatible)");
1143
1144         adb_request(&req, NULL, ADBREQ_SYNC, 1, ADB_FLUSH(id));
1145
1146         /* This will initialize mice using the Microspeed, MacPoint and
1147            other compatible firmware. Bit 12 enables extended protocol.
1148
1149            Register 1 Listen (4 Bytes)
1150             0 -  3     Button is mouse (set also for double clicking!!!)
1151             4 -  7     Button is locking (affects change speed also)
1152             8 - 11     Button changes speed
1153            12          1 = Extended mouse mode, 0 = normal mouse mode
1154            13 - 15     unused 0
1155            16 - 23     normal speed
1156            24 - 31     changed speed
1157
1158        Register 1 talk holds version and product identification information.
1159        Register 1 Talk (4 Bytes):
1160             0 -  7     Product code
1161             8 - 23     undefined, reserved
1162            24 - 31     Version number
1163
1164        Speed 0 is max. 1 to 255 set speed in increments of 1/256 of max.
1165  */
1166         adb_request(&req, NULL, ADBREQ_SYNC, 5,
1167         ADB_WRITEREG(id,1),
1168             0x20,       /* alt speed = 0x20 (rather slow) */
1169             0x00,       /* norm speed = 0x00 (fastest) */
1170             0x10,       /* extended protocol, no speed change */
1171             0x07);      /* all buttons enabled as mouse buttons, no locking */
1172
1173
1174         adb_request(&req, NULL, ADBREQ_SYNC, 1, ADB_FLUSH(id));
1175 }
1176
1177 static void
1178 init_ms_a3(int id)
1179 {
1180         struct adb_request req;
1181
1182         printk(" (Mouse Systems A3 Mouse, or compatible)");
1183         adb_request(&req, NULL, ADBREQ_SYNC, 3,
1184         ADB_WRITEREG(id, 0x2),
1185             0x00,
1186             0x07);
1187
1188         adb_request(&req, NULL, ADBREQ_SYNC, 1, ADB_FLUSH(id));
1189 }
1190
1191 static int __init adbhid_init(void)
1192 {
1193 #ifndef CONFIG_MAC
1194         if (!machine_is(chrp) && !machine_is(powermac))
1195                 return 0;
1196 #endif
1197
1198         led_request.complete = 1;
1199
1200         adbhid_probe();
1201
1202         blocking_notifier_chain_register(&adb_client_list,
1203                         &adbhid_adb_notifier);
1204
1205         return 0;
1206 }
1207
1208 static void __exit adbhid_exit(void)
1209 {
1210 }
1211
1212 module_init(adbhid_init);
1213 module_exit(adbhid_exit);