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 #define KEYB_KEYREG     0       /* register # for key up/down data */
  56 #define KEYB_LEDREG     2       /* register # for leds on ADB keyboard */
  57 #define MOUSE_DATAREG   0       /* reg# for movement/button codes from mouse */
  58
  59 static int adb_message_handler(struct notifier_block *, unsigned long, void *);
  60 static struct notifier_block adbhid_adb_notifier = {
  61         .notifier_call  = adb_message_handler,
  62 };
  63
  64 /* Some special keys */
  65 #define ADB_KEY_DEL             0x33
  66 #define ADB_KEY_CMD             0x37
  67 #define ADB_KEY_CAPSLOCK        0x39
  68 #define ADB_KEY_FN              0x3f
  69 #define ADB_KEY_FWDEL           0x75
  70 #define ADB_KEY_POWER_OLD       0x7e
  71 #define ADB_KEY_POWER           0x7f
  72
  73 u8 adb_to_linux_keycodes[128] = {
  74         /* 0x00 */ KEY_A,               /*  30 */
  75         /* 0x01 */ KEY_S,               /*  31 */
  76         /* 0x02 */ KEY_D,               /*  32 */
  77         /* 0x03 */ KEY_F,               /*  33 */
  78         /* 0x04 */ KEY_H,               /*  35 */
  79         /* 0x05 */ KEY_G,               /*  34 */
  80         /* 0x06 */ KEY_Z,               /*  44 */
  81         /* 0x07 */ KEY_X,               /*  45 */
  82         /* 0x08 */ KEY_C,               /*  46 */
  83         /* 0x09 */ KEY_V,               /*  47 */
  84         /* 0x0a */ KEY_102ND,           /*  86 */
  85         /* 0x0b */ KEY_B,               /*  48 */
  86         /* 0x0c */ KEY_Q,               /*  16 */
  87         /* 0x0d */ KEY_W,               /*  17 */
  88         /* 0x0e */ KEY_E,               /*  18 */
  89         /* 0x0f */ KEY_R,               /*  19 */
  90         /* 0x10 */ KEY_Y,               /*  21 */
  91         /* 0x11 */ KEY_T,               /*  20 */
  92         /* 0x12 */ KEY_1,               /*   2 */
  93         /* 0x13 */ KEY_2,               /*   3 */
  94         /* 0x14 */ KEY_3,               /*   4 */
  95         /* 0x15 */ KEY_4,               /*   5 */
  96         /* 0x16 */ KEY_6,               /*   7 */
  97         /* 0x17 */ KEY_5,               /*   6 */
  98         /* 0x18 */ KEY_EQUAL,           /*  13 */
  99         /* 0x19 */ KEY_9,               /*  10 */
 100         /* 0x1a */ KEY_7,               /*   8 */
 101         /* 0x1b */ KEY_MINUS,           /*  12 */
 102         /* 0x1c */ KEY_8,               /*   9 */
 103         /* 0x1d */ KEY_0,               /*  11 */
 104         /* 0x1e */ KEY_RIGHTBRACE,      /*  27 */
 105         /* 0x1f */ KEY_O,               /*  24 */
 106         /* 0x20 */ KEY_U,               /*  22 */
 107         /* 0x21 */ KEY_LEFTBRACE,       /*  26 */
 108         /* 0x22 */ KEY_I,               /*  23 */
 109         /* 0x23 */ KEY_P,               /*  25 */
 110         /* 0x24 */ KEY_ENTER,           /*  28 */
 111         /* 0x25 */ KEY_L,               /*  38 */
 112         /* 0x26 */ KEY_J,               /*  36 */
 113         /* 0x27 */ KEY_APOSTROPHE,      /*  40 */
 114         /* 0x28 */ KEY_K,               /*  37 */
 115         /* 0x29 */ KEY_SEMICOLON,       /*  39 */
 116         /* 0x2a */ KEY_BACKSLASH,       /*  43 */
 117         /* 0x2b */ KEY_COMMA,           /*  51 */
 118         /* 0x2c */ KEY_SLASH,           /*  53 */
 119         /* 0x2d */ KEY_N,               /*  49 */
 120         /* 0x2e */ KEY_M,               /*  50 */
 121         /* 0x2f */ KEY_DOT,             /*  52 */
 122         /* 0x30 */ KEY_TAB,             /*  15 */
 123         /* 0x31 */ KEY_SPACE,           /*  57 */
 124         /* 0x32 */ KEY_GRAVE,           /*  41 */
 125         /* 0x33 */ KEY_BACKSPACE,       /*  14 */
 126         /* 0x34 */ KEY_KPENTER,         /*  96 */
 127         /* 0x35 */ KEY_ESC,             /*   1 */
 128         /* 0x36 */ KEY_LEFTCTRL,        /*  29 */
 129         /* 0x37 */ KEY_LEFTMETA,        /* 125 */
 130         /* 0x38 */ KEY_LEFTSHIFT,       /*  42 */
 131         /* 0x39 */ KEY_CAPSLOCK,        /*  58 */
 132         /* 0x3a */ KEY_LEFTALT,         /*  56 */
 133         /* 0x3b */ KEY_LEFT,            /* 105 */
 134         /* 0x3c */ KEY_RIGHT,           /* 106 */
 135         /* 0x3d */ KEY_DOWN,            /* 108 */
 136         /* 0x3e */ KEY_UP,              /* 103 */
 137         /* 0x3f */ 0,
 138         /* 0x40 */ 0,
 139         /* 0x41 */ KEY_KPDOT,           /*  83 */
 140         /* 0x42 */ 0,
 141         /* 0x43 */ KEY_KPASTERISK,      /*  55 */
 142         /* 0x44 */ 0,
 143         /* 0x45 */ KEY_KPPLUS,          /*  78 */
 144         /* 0x46 */ 0,
 145         /* 0x47 */ KEY_NUMLOCK,         /*  69 */
 146         /* 0x48 */ 0,
 147         /* 0x49 */ 0,
 148         /* 0x4a */ 0,
 149         /* 0x4b */ KEY_KPSLASH,         /*  98 */
 150         /* 0x4c */ KEY_KPENTER,         /*  96 */
 151         /* 0x4d */ 0,
 152         /* 0x4e */ KEY_KPMINUS,         /*  74 */
 153         /* 0x4f */ 0,
 154         /* 0x50 */ 0,
 155         /* 0x51 */ KEY_KPEQUAL,         /* 117 */
 156         /* 0x52 */ KEY_KP0,             /*  82 */
 157         /* 0x53 */ KEY_KP1,             /*  79 */
 158         /* 0x54 */ KEY_KP2,             /*  80 */
 159         /* 0x55 */ KEY_KP3,             /*  81 */
 160         /* 0x56 */ KEY_KP4,             /*  75 */
 161         /* 0x57 */ KEY_KP5,             /*  76 */
 162         /* 0x58 */ KEY_KP6,             /*  77 */
 163         /* 0x59 */ KEY_KP7,             /*  71 */
 164         /* 0x5a */ 0,
 165         /* 0x5b */ KEY_KP8,             /*  72 */
 166         /* 0x5c */ KEY_KP9,             /*  73 */
 167         /* 0x5d */ KEY_YEN,             /* 124 */
 168         /* 0x5e */ KEY_RO,              /*  89 */
 169         /* 0x5f */ KEY_KPCOMMA,         /* 121 */
 170         /* 0x60 */ KEY_F5,              /*  63 */
 171         /* 0x61 */ KEY_F6,              /*  64 */
 172         /* 0x62 */ KEY_F7,              /*  65 */
 173         /* 0x63 */ KEY_F3,              /*  61 */
 174         /* 0x64 */ KEY_F8,              /*  66 */
 175         /* 0x65 */ KEY_F9,              /*  67 */
 176         /* 0x66 */ KEY_HANJA,           /* 123 */
 177         /* 0x67 */ KEY_F11,             /*  87 */
 178         /* 0x68 */ KEY_HANGEUL,         /* 122 */
 179         /* 0x69 */ KEY_SYSRQ,           /*  99 */
 180         /* 0x6a */ 0,
 181         /* 0x6b */ KEY_SCROLLLOCK,      /*  70 */
 182         /* 0x6c */ 0,
 183         /* 0x6d */ KEY_F10,             /*  68 */
 184         /* 0x6e */ KEY_COMPOSE,         /* 127 */
 185         /* 0x6f */ KEY_F12,             /*  88 */
 186         /* 0x70 */ 0,
 187         /* 0x71 */ KEY_PAUSE,           /* 119 */
 188         /* 0x72 */ KEY_INSERT,          /* 110 */
 189         /* 0x73 */ KEY_HOME,            /* 102 */
 190         /* 0x74 */ KEY_PAGEUP,          /* 104 */
 191         /* 0x75 */ KEY_DELETE,          /* 111 */
 192         /* 0x76 */ KEY_F4,              /*  62 */
 193         /* 0x77 */ KEY_END,             /* 107 */
 194         /* 0x78 */ KEY_F2,              /*  60 */
 195         /* 0x79 */ KEY_PAGEDOWN,        /* 109 */
 196         /* 0x7a */ KEY_F1,              /*  59 */
 197         /* 0x7b */ KEY_RIGHTSHIFT,      /*  54 */
 198         /* 0x7c */ KEY_RIGHTALT,        /* 100 */
 199         /* 0x7d */ KEY_RIGHTCTRL,       /*  97 */
 200         /* 0x7e */ KEY_RIGHTMETA,       /* 126 */
 201         /* 0x7f */ KEY_POWER,           /* 116 */
 202 };
 203
 204 struct adbhid {
 205         struct input_dev *input;
 206         int id;
 207         int default_id;
 208         int original_handler_id;
 209         int current_handler_id;
 210         int mouse_kind;
 211         unsigned char *keycode;
 212         char name[64];
 213         char phys[32];
 214         int flags;
 215 };
 216
 217 #define FLAG_FN_KEY_PRESSED     0x00000001
 218 #define FLAG_POWER_FROM_FN      0x00000002
 219 #define FLAG_EMU_FWDEL_DOWN     0x00000004
 220
 221 static struct adbhid *adbhid[16];
 222
 223 static void adbhid_probe(void);
 224
 225 static void adbhid_input_keycode(int, int, int);
 226
 227 static void init_trackpad(int id);
 228 static void init_trackball(int id);
 229 static void init_turbomouse(int id);
 230 static void init_microspeed(int id);
 231 static void init_ms_a3(int id);
 232
 233 static struct adb_ids keyboard_ids;
 234 static struct adb_ids mouse_ids;
 235 static struct adb_ids buttons_ids;
 236
 237 /* Kind of keyboard, see Apple technote 1152  */
 238 #define ADB_KEYBOARD_UNKNOWN    0
 239 #define ADB_KEYBOARD_ANSI       0x0100
 240 #define ADB_KEYBOARD_ISO        0x0200
 241 #define ADB_KEYBOARD_JIS        0x0300
 242
 243 /* Kind of mouse  */
 244 #define ADBMOUSE_STANDARD_100   0       /* Standard 100cpi mouse (handler 1) */
 245 #define ADBMOUSE_STANDARD_200   1       /* Standard 200cpi mouse (handler 2) */
 246 #define ADBMOUSE_EXTENDED       2       /* Apple Extended mouse (handler 4) */
 247 #define ADBMOUSE_TRACKBALL      3       /* TrackBall (handler 4) */
 248 #define ADBMOUSE_TRACKPAD       4       /* Apple's PowerBook trackpad (handler 4) */
 249 #define ADBMOUSE_TURBOMOUSE5    5       /* Turbomouse 5 (previously req. mousehack) */
 250 #define ADBMOUSE_MICROSPEED     6       /* Microspeed mouse (&trackball ?), MacPoint */
 251 #define ADBMOUSE_TRACKBALLPRO   7       /* Trackball Pro (special buttons) */
 252 #define ADBMOUSE_MS_A3          8       /* Mouse systems A3 trackball (handler 3) */
 253 #define ADBMOUSE_MACALLY2       9       /* MacAlly 2-button mouse */
 254
 255 static void
 256 adbhid_keyboard_input(unsigned char *data, int nb, int apoll)
 257 {
 258         int id = (data[0] >> 4) & 0x0f;
 259
 260         if (!adbhid[id]) {
 261                 printk(KERN_ERR "ADB HID on ID %d not yet registered, packet %#02x, %#02x, %#02x, %#02x\n",
 262                        id, data[0], data[1], data[2], data[3]);
 263                 return;
 264         }
 265
 266         /* first check this is from register 0 */
 267         if (nb != 3 || (data[0] & 3) != KEYB_KEYREG)
 268                 return;         /* ignore it */
 269         adbhid_input_keycode(id, data[1], 0);
 270         if (!(data[2] == 0xff || (data[2] == 0x7f && data[1] == 0x7f)))
 271                 adbhid_input_keycode(id, data[2], 0);
 272 }
 273
 274 static void
 275 adbhid_input_keycode(int id, int keycode, int repeat)
 276 {
 277         struct adbhid *ahid = adbhid[id];
 278         int up_flag;
 279
 280         up_flag = (keycode & 0x80);
 281         keycode &= 0x7f;
 282
 283         switch (keycode) {
 284         case ADB_KEY_CAPSLOCK: /* Generate down/up events for CapsLock everytime. */
 285                 input_report_key(ahid->input, KEY_CAPSLOCK, 1);
 286                 input_report_key(ahid->input, KEY_CAPSLOCK, 0);
 287                 input_sync(ahid->input);
 288                 return;
 289 #ifdef CONFIG_PPC_PMAC
 290         case ADB_KEY_POWER_OLD: /* Power key on PBook 3400 needs remapping */
 291                 switch(pmac_call_feature(PMAC_FTR_GET_MB_INFO,
 292                         NULL, PMAC_MB_INFO_MODEL, 0)) {
 293                 case PMAC_TYPE_COMET:
 294                 case PMAC_TYPE_HOOPER:
 295                 case PMAC_TYPE_KANGA:
 296                         keycode = ADB_KEY_POWER;
 297                 }
 298                 break;
 299         case ADB_KEY_POWER:
 300                 /* Fn + Command will produce a bogus "power" keycode */
 301                 if (ahid->flags & FLAG_FN_KEY_PRESSED) {
 302                         keycode = ADB_KEY_CMD;
 303                         if (up_flag)
 304                                 ahid->flags &= ~FLAG_POWER_FROM_FN;
 305                         else
 306                                 ahid->flags |= FLAG_POWER_FROM_FN;
 307                 } else if (ahid->flags & FLAG_POWER_FROM_FN) {
 308                         keycode = ADB_KEY_CMD;
 309                         ahid->flags &= ~FLAG_POWER_FROM_FN;
 310                 }
 311                 break;
 312         case ADB_KEY_FN:
 313                 /* Keep track of the Fn key state */
 314                 if (up_flag) {
 315                         ahid->flags &= ~FLAG_FN_KEY_PRESSED;
 316                         /* Emulate Fn+delete = forward delete */
 317                         if (ahid->flags & FLAG_EMU_FWDEL_DOWN) {
 318                                 ahid->flags &= ~FLAG_EMU_FWDEL_DOWN;
 319                                 keycode = ADB_KEY_FWDEL;
 320                                 break;
 321                         }
 322                 } else
 323                         ahid->flags |= FLAG_FN_KEY_PRESSED;
 324                 /* Swallow the key press */
 325                 return;
 326         case ADB_KEY_DEL:
 327                 /* Emulate Fn+delete = forward delete */
 328                 if (ahid->flags & FLAG_FN_KEY_PRESSED) {
 329                         keycode = ADB_KEY_FWDEL;
 330                         if (up_flag)
 331                                 ahid->flags &= ~FLAG_EMU_FWDEL_DOWN;
 332                         else
 333                                 ahid->flags |= FLAG_EMU_FWDEL_DOWN;
 334                 }
 335                 break;
 336 #endif /* CONFIG_PPC_PMAC */
 337         }
 338
 339         if (adbhid[id]->keycode[keycode]) {
 340                 input_report_key(adbhid[id]->input,
 341                                  adbhid[id]->keycode[keycode], !up_flag);
 342                 input_sync(adbhid[id]->input);
 343         } else
 344                 printk(KERN_INFO "Unhandled ADB key (scancode %#02x) %s.\n", keycode,
 345                        up_flag ? "released" : "pressed");
 346
 347 }
 348
 349 static void
 350 adbhid_mouse_input(unsigned char *data, int nb, int autopoll)
 351 {
 352         int id = (data[0] >> 4) & 0x0f;
 353
 354         if (!adbhid[id]) {
 355                 printk(KERN_ERR "ADB HID on ID %d not yet registered\n", id);
 356                 return;
 357         }
 358
 359   /*
 360     Handler 1 -- 100cpi original Apple mouse protocol.
 361     Handler 2 -- 200cpi original Apple mouse protocol.
 362
 363     For Apple's standard one-button mouse protocol the data array will
 364     contain the following values:
 365
 366                 BITS    COMMENTS
 367     data[0] = dddd 1100 ADB command: Talk, register 0, for device dddd.
 368     data[1] = bxxx xxxx First button and x-axis motion.
 369     data[2] = byyy yyyy Second button and y-axis motion.
 370
 371     Handler 4 -- Apple Extended mouse protocol.
 372
 373     For Apple's 3-button mouse protocol the data array will contain the
 374     following values:
 375
 376                 BITS    COMMENTS
 377     data[0] = dddd 1100 ADB command: Talk, register 0, for device dddd.
 378     data[1] = bxxx xxxx Left button and x-axis motion.
 379     data[2] = byyy yyyy Second button and y-axis motion.
 380     data[3] = byyy bxxx Third button and fourth button.  Y is additional
 381               high bits of y-axis motion.  XY is additional
 382               high bits of x-axis motion.
 383
 384     MacAlly 2-button mouse protocol.
 385
 386     For MacAlly 2-button mouse protocol the data array will contain the
 387     following values:
 388
 389                 BITS    COMMENTS
 390     data[0] = dddd 1100 ADB command: Talk, register 0, for device dddd.
 391     data[1] = bxxx xxxx Left button and x-axis motion.
 392     data[2] = byyy yyyy Right button and y-axis motion.
 393     data[3] = ???? ???? unknown
 394     data[4] = ???? ???? unknown
 395
 396   */
 397
 398         /* If it's a trackpad, we alias the second button to the first.
 399            NOTE: Apple sends an ADB flush command to the trackpad when
 400                  the first (the real) button is released. We could do
 401                  this here using async flush requests.
 402         */
 403         switch (adbhid[id]->mouse_kind)
 404         {
 405             case ADBMOUSE_TRACKPAD:
 406                 data[1] = (data[1] & 0x7f) | ((data[1] & data[2]) & 0x80);
 407                 data[2] = data[2] | 0x80;
 408                 break;
 409             case ADBMOUSE_MICROSPEED:
 410                 data[1] = (data[1] & 0x7f) | ((data[3] & 0x01) << 7);
 411                 data[2] = (data[2] & 0x7f) | ((data[3] & 0x02) << 6);
 412                 data[3] = (data[3] & 0x77) | ((data[3] & 0x04) << 5)
 413                         | (data[3] & 0x08);
 414                 break;
 415             case ADBMOUSE_TRACKBALLPRO:
 416                 data[1] = (data[1] & 0x7f) | (((data[3] & 0x04) << 5)
 417                         & ((data[3] & 0x08) << 4));
 418                 data[2] = (data[2] & 0x7f) | ((data[3] & 0x01) << 7);
 419                 data[3] = (data[3] & 0x77) | ((data[3] & 0x02) << 6);
 420                 break;
 421             case ADBMOUSE_MS_A3:
 422                 data[1] = (data[1] & 0x7f) | ((data[3] & 0x01) << 7);
 423                 data[2] = (data[2] & 0x7f) | ((data[3] & 0x02) << 6);
 424                 data[3] = ((data[3] & 0x04) << 5);
 425                 break;
 426             case ADBMOUSE_MACALLY2:
 427                 data[3] = (data[2] & 0x80) ? 0x80 : 0x00;
 428                 data[2] |= 0x80;  /* Right button is mapped as button 3 */
 429                 nb=4;
 430                 break;
 431         }
 432
 433         input_report_key(adbhid[id]->input, BTN_LEFT,   !((data[1] >> 7) & 1));
 434         input_report_key(adbhid[id]->input, BTN_MIDDLE, !((data[2] >> 7) & 1));
 435
 436         if (nb >= 4 && adbhid[id]->mouse_kind != ADBMOUSE_TRACKPAD)
 437                 input_report_key(adbhid[id]->input, BTN_RIGHT,  !((data[3] >> 7) & 1));
 438
 439         input_report_rel(adbhid[id]->input, REL_X,
 440                          ((data[2]&0x7f) < 64 ? (data[2]&0x7f) : (data[2]&0x7f)-128 ));
 441         input_report_rel(adbhid[id]->input, REL_Y,
 442                          ((data[1]&0x7f) < 64 ? (data[1]&0x7f) : (data[1]&0x7f)-128 ));
 443
 444         input_sync(adbhid[id]->input);
 445 }
 446
 447 static void
 448 adbhid_buttons_input(unsigned char *data, int nb, int autopoll)
 449 {
 450         int id = (data[0] >> 4) & 0x0f;
 451
 452         if (!adbhid[id]) {
 453                 printk(KERN_ERR "ADB HID on ID %d not yet registered\n", id);
 454                 return;
 455         }
 456
 457         switch (adbhid[id]->original_handler_id) {
 458         default:
 459         case 0x02: /* Adjustable keyboard button device */
 460           {
 461                 int down = (data[1] == (data[1] & 0xf));
 462
 463                 switch (data[1] & 0x0f) {
 464                 case 0x0:       /* microphone */
 465                         input_report_key(adbhid[id]->input, KEY_SOUND, down);
 466                         break;
 467
 468                 case 0x1:       /* mute */
 469                         input_report_key(adbhid[id]->input, KEY_MUTE, down);
 470                         break;
 471
 472                 case 0x2:       /* volume decrease */
 473                         input_report_key(adbhid[id]->input, KEY_VOLUMEDOWN, down);
 474                         break;
 475
 476                 case 0x3:       /* volume increase */
 477                         input_report_key(adbhid[id]->input, KEY_VOLUMEUP, down);
 478                         break;
 479
 480                 default:
 481                         printk(KERN_INFO "Unhandled ADB_MISC event %02x, %02x, %02x, %02x\n",
 482                                data[0], data[1], data[2], data[3]);
 483                         break;
 484                 }
 485           }
 486           break;
 487
 488         case 0x1f: /* Powerbook button device */
 489           {
 490                 int down = (data[1] == (data[1] & 0xf));
 491
 492                 /*
 493                  * XXX: Where is the contrast control for the passive?
 494                  *  -- Cort
 495                  */
 496
 497                 switch (data[1] & 0x0f) {
 498                 case 0x8:       /* mute */
 499                         input_report_key(adbhid[id]->input, KEY_MUTE, down);
 500                         break;
 501
 502                 case 0x7:       /* volume decrease */
 503                         input_report_key(adbhid[id]->input, KEY_VOLUMEDOWN, down);
 504                         break;
 505
 506                 case 0x6:       /* volume increase */
 507                         input_report_key(adbhid[id]->input, KEY_VOLUMEUP, down);
 508                         break;
 509
 510                 case 0xb:       /* eject */
 511                         input_report_key(adbhid[id]->input, KEY_EJECTCD, down);
 512                         break;
 513
 514                 case 0xa:       /* brightness decrease */
 515 #ifdef CONFIG_PMAC_BACKLIGHT
 516                         if (down)
 517                                 pmac_backlight_key_down();
 518 #endif
 519                         input_report_key(adbhid[id]->input, KEY_BRIGHTNESSDOWN, down);
 520                         break;
 521
 522                 case 0x9:       /* brightness increase */
 523 #ifdef CONFIG_PMAC_BACKLIGHT
 524                         if (down)
 525                                 pmac_backlight_key_up();
 526 #endif
 527                         input_report_key(adbhid[id]->input, KEY_BRIGHTNESSUP, down);
 528                         break;
 529
 530                 case 0xc:       /* videomode switch */
 531                         input_report_key(adbhid[id]->input, KEY_SWITCHVIDEOMODE, down);
 532                         break;
 533
 534                 case 0xd:       /* keyboard illumination toggle */
 535                         input_report_key(adbhid[id]->input, KEY_KBDILLUMTOGGLE, down);
 536                         break;
 537
 538                 case 0xe:       /* keyboard illumination decrease */
 539                         input_report_key(adbhid[id]->input, KEY_KBDILLUMDOWN, down);
 540                         break;
 541
 542                 case 0xf:
 543                         switch (data[1]) {
 544                         case 0x8f:
 545                         case 0x0f:
 546                                 /* keyboard illumination increase */
 547                                 input_report_key(adbhid[id]->input, KEY_KBDILLUMUP, down);
 548                                 break;
 549
 550                         case 0x7f:
 551                         case 0xff:
 552                                 /* keypad overlay toogle */
 553                                 break;
 554
 555                         default:
 556                                 printk(KERN_INFO "Unhandled ADB_MISC event %02x, %02x, %02x, %02x\n",
 557                                        data[0], data[1], data[2], data[3]);
 558                                 break;
 559                         }
 560                         break;
 561                 default:
 562                         printk(KERN_INFO "Unhandled ADB_MISC event %02x, %02x, %02x, %02x\n",
 563                                data[0], data[1], data[2], data[3]);
 564                         break;
 565                 }
 566           }
 567           break;
 568         }
 569
 570         input_sync(adbhid[id]->input);
 571 }
 572
 573 static struct adb_request led_request;
 574 static int leds_pending[16];
 575 static int leds_req_pending;
 576 static int pending_devs[16];
 577 static int pending_led_start;
 578 static int pending_led_end;
 579 static DEFINE_SPINLOCK(leds_lock);
 580
 581 static void leds_done(struct adb_request *req)
 582 {
 583         int leds = 0, device = 0, pending = 0;
 584         unsigned long flags;
 585
 586         spin_lock_irqsave(&leds_lock, flags);
 587
 588         if (pending_led_start != pending_led_end) {
 589                 device = pending_devs[pending_led_start];
 590                 leds = leds_pending[device] & 0xff;
 591                 leds_pending[device] = 0;
 592                 pending_led_start++;
 593                 pending_led_start = (pending_led_start < 16) ? pending_led_start : 0;
 594                 pending = leds_req_pending;
 595         } else
 596                 leds_req_pending = 0;
 597         spin_unlock_irqrestore(&leds_lock, flags);
 598         if (pending)
 599                 adb_request(&led_request, leds_done, 0, 3,
 600                             ADB_WRITEREG(device, KEYB_LEDREG), 0xff, ~leds);
 601 }
 602
 603 static void real_leds(unsigned char leds, int device)
 604 {
 605         unsigned long flags;
 606
 607         spin_lock_irqsave(&leds_lock, flags);
 608         if (!leds_req_pending) {
 609                 leds_req_pending = 1;
 610                 spin_unlock_irqrestore(&leds_lock, flags);
 611                 adb_request(&led_request, leds_done, 0, 3,
 612                             ADB_WRITEREG(device, KEYB_LEDREG), 0xff, ~leds);
 613                 return;
 614         } else {
 615                 if (!(leds_pending[device] & 0x100)) {
 616                         pending_devs[pending_led_end] = device;
 617                         pending_led_end++;
 618                         pending_led_end = (pending_led_end < 16) ? pending_led_end : 0;
 619                 }
 620                 leds_pending[device] = leds | 0x100;
 621         }
 622         spin_unlock_irqrestore(&leds_lock, flags);
 623 }
 624
 625 /*
 626  * Event callback from the input module. Events that change the state of
 627  * the hardware are processed here.
 628  */
 629 static int adbhid_kbd_event(struct input_dev *dev, unsigned int type, unsigned int code, int value)
 630 {
 631         struct adbhid *adbhid = dev->private;
 632         unsigned char leds;
 633
 634         switch (type) {
 635         case EV_LED:
 636           leds = (test_bit(LED_SCROLLL, dev->led) ? 4 : 0)
 637                | (test_bit(LED_NUML,    dev->led) ? 1 : 0)
 638                | (test_bit(LED_CAPSL,   dev->led) ? 2 : 0);
 639           real_leds(leds, adbhid->id);
 640           return 0;
 641         }
 642
 643         return -1;
 644 }
 645
 646 static int
 647 adb_message_handler(struct notifier_block *this, unsigned long code, void *x)
 648 {
 649         switch (code) {
 650         case ADB_MSG_PRE_RESET:
 651         case ADB_MSG_POWERDOWN:
 652                 /* Stop the repeat timer. Autopoll is already off at this point */
 653                 {
 654                         int i;
 655                         for (i = 1; i < 16; i++) {
 656                                 if (adbhid[i])
 657                                         del_timer_sync(&adbhid[i]->input->timer);
 658                         }
 659                 }
 660
 661                 /* Stop pending led requests */
 662                 while(leds_req_pending)
 663                         adb_poll();
 664                 break;
 665
 666         case ADB_MSG_POST_RESET:
 667                 adbhid_probe();
 668                 break;
 669         }
 670         return NOTIFY_DONE;
 671 }
 672
 673 static int
 674 adbhid_input_register(int id, int default_id, int original_handler_id,
 675                       int current_handler_id, int mouse_kind)
 676 {
 677         struct adbhid *hid;
 678         struct input_dev *input_dev;
 679         int err;
 680         int i;
 681
 682         if (adbhid[id]) {
 683                 printk(KERN_ERR "Trying to reregister ADB HID on ID %d\n", id);
 684                 return -EEXIST;
 685         }
 686
 687         adbhid[id] = hid = kzalloc(sizeof(struct adbhid), GFP_KERNEL);
 688         input_dev = input_allocate_device();
 689         if (!hid || !input_dev) {
 690                 err = -ENOMEM;
 691                 goto fail;
 692         }
 693
 694         sprintf(hid->phys, "adb%d:%d.%02x/input", id, default_id, original_handler_id);
 695
 696         hid->input = input_dev;
 697         hid->id = default_id;
 698         hid->original_handler_id = original_handler_id;
 699         hid->current_handler_id = current_handler_id;
 700         hid->mouse_kind = mouse_kind;
 701         hid->flags = 0;
 702         input_dev->private = hid;
 703         input_dev->name = hid->name;
 704         input_dev->phys = hid->phys;
 705         input_dev->id.bustype = BUS_ADB;
 706         input_dev->id.vendor = 0x0001;
 707         input_dev->id.product = (id << 12) | (default_id << 8) | original_handler_id;
 708         input_dev->id.version = 0x0100;
 709
 710         switch (default_id) {
 711         case ADB_KEYBOARD:
 712                 hid->keycode = kmalloc(sizeof(adb_to_linux_keycodes), GFP_KERNEL);
 713                 if (!hid->keycode) {
 714                         err = -ENOMEM;
 715                         goto fail;
 716                 }
 717
 718                 sprintf(hid->name, "ADB keyboard");
 719
 720                 memcpy(hid->keycode, adb_to_linux_keycodes, sizeof(adb_to_linux_keycodes));
 721
 722                 printk(KERN_INFO "Detected ADB keyboard, type ");
 723                 switch (original_handler_id) {
 724                 default:
 725                         printk("<unknown>.\n");
 726                         input_dev->id.version = ADB_KEYBOARD_UNKNOWN;
 727                         break;
 728
 729                 case 0x01: case 0x02: case 0x03: case 0x06: case 0x08:
 730                 case 0x0C: case 0x10: case 0x18: case 0x1B: case 0x1C:
 731                 case 0xC0: case 0xC3: case 0xC6:
 732                         printk("ANSI.\n");
 733                         input_dev->id.version = ADB_KEYBOARD_ANSI;
 734                         break;
 735
 736                 case 0x04: case 0x05: case 0x07: case 0x09: case 0x0D:
 737                 case 0x11: case 0x14: case 0x19: case 0x1D: case 0xC1:
 738                 case 0xC4: case 0xC7:
 739                         printk("ISO, swapping keys.\n");
 740                         input_dev->id.version = ADB_KEYBOARD_ISO;
 741                         i = hid->keycode[10];
 742                         hid->keycode[10] = hid->keycode[50];
 743                         hid->keycode[50] = i;
 744                         break;
 745
 746                 case 0x12: case 0x15: case 0x16: case 0x17: case 0x1A:
 747                 case 0x1E: case 0xC2: case 0xC5: case 0xC8: case 0xC9:
 748                         printk("JIS.\n");
 749                         input_dev->id.version = ADB_KEYBOARD_JIS;
 750                         break;
 751                 }
 752
 753                 for (i = 0; i < 128; i++)
 754                         if (hid->keycode[i])
 755                                 set_bit(hid->keycode[i], input_dev->keybit);
 756
 757                 input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_LED) | BIT(EV_REP);
 758                 input_dev->ledbit[0] = BIT(LED_SCROLLL) | BIT(LED_CAPSL) | BIT(LED_NUML);
 759                 input_dev->event = adbhid_kbd_event;
 760                 input_dev->keycodemax = 127;
 761                 input_dev->keycodesize = 1;
 762                 break;
 763
 764         case ADB_MOUSE:
 765                 sprintf(hid->name, "ADB mouse");
 766
 767                 input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_REL);
 768                 input_dev->keybit[LONG(BTN_MOUSE)] = BIT(BTN_LEFT) | BIT(BTN_MIDDLE) | BIT(BTN_RIGHT);
 769                 input_dev->relbit[0] = BIT(REL_X) | BIT(REL_Y);
 770                 break;
 771
 772         case ADB_MISC:
 773                 switch (original_handler_id) {
 774                 case 0x02: /* Adjustable keyboard button device */
 775                         sprintf(hid->name, "ADB adjustable keyboard buttons");
 776                         input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_REP);
 777                         set_bit(KEY_SOUND, input_dev->keybit);
 778                         set_bit(KEY_MUTE, input_dev->keybit);
 779                         set_bit(KEY_VOLUMEUP, input_dev->keybit);
 780                         set_bit(KEY_VOLUMEDOWN, input_dev->keybit);
 781                         break;
 782                 case 0x1f: /* Powerbook button device */
 783                         sprintf(hid->name, "ADB Powerbook buttons");
 784                         input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_REP);
 785                         set_bit(KEY_MUTE, input_dev->keybit);
 786                         set_bit(KEY_VOLUMEUP, input_dev->keybit);
 787                         set_bit(KEY_VOLUMEDOWN, input_dev->keybit);
 788                         set_bit(KEY_BRIGHTNESSUP, input_dev->keybit);
 789                         set_bit(KEY_BRIGHTNESSDOWN, input_dev->keybit);
 790                         set_bit(KEY_EJECTCD, input_dev->keybit);
 791                         set_bit(KEY_SWITCHVIDEOMODE, input_dev->keybit);
 792                         set_bit(KEY_KBDILLUMTOGGLE, input_dev->keybit);
 793                         set_bit(KEY_KBDILLUMDOWN, input_dev->keybit);
 794                         set_bit(KEY_KBDILLUMUP, input_dev->keybit);
 795                         break;
 796                 }
 797                 if (hid->name[0])
 798                         break;
 799                 /* else fall through */
 800
 801         default:
 802                 printk(KERN_INFO "Trying to register unknown ADB device to input layer.\n");
 803                 err = -ENODEV;
 804                 goto fail;
 805         }
 806
 807         input_dev->keycode = hid->keycode;
 808
 809         err = input_register_device(input_dev);
 810         if (err)
 811                 goto fail;
 812
 813         if (default_id == ADB_KEYBOARD) {
 814                 /* HACK WARNING!! This should go away as soon there is an utility
 815                  * to control that for event devices.
 816                  */
 817                 input_dev->rep[REP_DELAY] = 500;   /* input layer default: 250 */
 818                 input_dev->rep[REP_PERIOD] = 66; /* input layer default: 33 */
 819         }
 820
 821         return 0;
 822
 823  fail:  input_free_device(input_dev);
 824         if (hid) {
 825                 kfree(hid->keycode);
 826                 kfree(hid);
 827         }
 828         adbhid[id] = NULL;
 829         return err;
 830 }
 831
 832 static void adbhid_input_unregister(int id)
 833 {
 834         input_unregister_device(adbhid[id]->input);
 835         kfree(adbhid[id]->keycode);
 836         kfree(adbhid[id]);
 837         adbhid[id] = NULL;
 838 }
 839
 840
 841 static u16
 842 adbhid_input_reregister(int id, int default_id, int org_handler_id,
 843                         int cur_handler_id, int mk)
 844 {
 845         if (adbhid[id]) {
 846                 if (adbhid[id]->input->id.product !=
 847                     ((id << 12)|(default_id << 8)|org_handler_id)) {
 848                         adbhid_input_unregister(id);
 849                         adbhid_input_register(id, default_id, org_handler_id,
 850                                               cur_handler_id, mk);
 851                 }
 852         } else
 853                 adbhid_input_register(id, default_id, org_handler_id,
 854                                       cur_handler_id, mk);
 855         return 1<<id;
 856 }
 857
 858 static void
 859 adbhid_input_devcleanup(u16 exist)
 860 {
 861         int i;
 862         for(i=1; i<16; i++)
 863                 if (adbhid[i] && !(exist&(1<<i)))
 864                         adbhid_input_unregister(i);
 865 }
 866
 867 static void
 868 adbhid_probe(void)
 869 {
 870         struct adb_request req;
 871         int i, default_id, org_handler_id, cur_handler_id;
 872         u16 reg = 0;
 873
 874         adb_register(ADB_MOUSE, 0, &mouse_ids, adbhid_mouse_input);
 875         adb_register(ADB_KEYBOARD, 0, &keyboard_ids, adbhid_keyboard_input);
 876         adb_register(ADB_MISC, 0, &buttons_ids, adbhid_buttons_input);
 877
 878         for (i = 0; i < keyboard_ids.nids; i++) {
 879                 int id = keyboard_ids.id[i];
 880
 881                 adb_get_infos(id, &default_id, &org_handler_id);
 882
 883                 /* turn off all leds */
 884                 adb_request(&req, NULL, ADBREQ_SYNC, 3,
 885                             ADB_WRITEREG(id, KEYB_LEDREG), 0xff, 0xff);
 886
 887                 /* Enable full feature set of the keyboard
 888                    ->get it to send separate codes for left and right shift,
 889                    control, option keys */
 890 #if 0           /* handler 5 doesn't send separate codes for R modifiers */
 891                 if (adb_try_handler_change(id, 5))
 892                         printk("ADB keyboard at %d, handler set to 5\n", id);
 893                 else
 894 #endif
 895                 if (adb_try_handler_change(id, 3))
 896                         printk("ADB keyboard at %d, handler set to 3\n", id);
 897                 else
 898                         printk("ADB keyboard at %d, handler 1\n", id);
 899
 900                 adb_get_infos(id, &default_id, &cur_handler_id);
 901                 reg |= adbhid_input_reregister(id, default_id, org_handler_id,
 902                                                cur_handler_id, 0);
 903         }
 904
 905         for (i = 0; i < buttons_ids.nids; i++) {
 906                 int id = buttons_ids.id[i];
 907
 908                 adb_get_infos(id, &default_id, &org_handler_id);
 909                 reg |= adbhid_input_reregister(id, default_id, org_handler_id,
 910                                                org_handler_id, 0);
 911         }
 912
 913         /* Try to switch all mice to handler 4, or 2 for three-button
 914            mode and full resolution. */
 915         for (i = 0; i < mouse_ids.nids; i++) {
 916                 int id = mouse_ids.id[i];
 917                 int mouse_kind;
 918
 919                 adb_get_infos(id, &default_id, &org_handler_id);
 920
 921                 if (adb_try_handler_change(id, 4)) {
 922                         printk("ADB mouse at %d, handler set to 4", id);
 923                         mouse_kind = ADBMOUSE_EXTENDED;
 924                 }
 925                 else if (adb_try_handler_change(id, 0x2F)) {
 926                         printk("ADB mouse at %d, handler set to 0x2F", id);
 927                         mouse_kind = ADBMOUSE_MICROSPEED;
 928                 }
 929                 else if (adb_try_handler_change(id, 0x42)) {
 930                         printk("ADB mouse at %d, handler set to 0x42", id);
 931                         mouse_kind = ADBMOUSE_TRACKBALLPRO;
 932                 }
 933                 else if (adb_try_handler_change(id, 0x66)) {
 934                         printk("ADB mouse at %d, handler set to 0x66", id);
 935                         mouse_kind = ADBMOUSE_MICROSPEED;
 936                 }
 937                 else if (adb_try_handler_change(id, 0x5F)) {
 938                         printk("ADB mouse at %d, handler set to 0x5F", id);
 939                         mouse_kind = ADBMOUSE_MICROSPEED;
 940                 }
 941                 else if (adb_try_handler_change(id, 3)) {
 942                         printk("ADB mouse at %d, handler set to 3", id);
 943                         mouse_kind = ADBMOUSE_MS_A3;
 944                 }
 945                 else if (adb_try_handler_change(id, 2)) {
 946                         printk("ADB mouse at %d, handler set to 2", id);
 947                         mouse_kind = ADBMOUSE_STANDARD_200;
 948                 }
 949                 else {
 950                         printk("ADB mouse at %d, handler 1", id);
 951                         mouse_kind = ADBMOUSE_STANDARD_100;
 952                 }
 953
 954                 if ((mouse_kind == ADBMOUSE_TRACKBALLPRO)
 955                     || (mouse_kind == ADBMOUSE_MICROSPEED)) {
 956                         init_microspeed(id);
 957                 } else if (mouse_kind == ADBMOUSE_MS_A3) {
 958                         init_ms_a3(id);
 959                 } else if (mouse_kind ==  ADBMOUSE_EXTENDED) {
 960                         /*
 961                          * Register 1 is usually used for device
 962                          * identification.  Here, we try to identify
 963                          * a known device and call the appropriate
 964                          * init function.
 965                          */
 966                         adb_request(&req, NULL, ADBREQ_SYNC | ADBREQ_REPLY, 1,
 967                                     ADB_READREG(id, 1));
 968
 969                         if ((req.reply_len) &&
 970                             (req.reply[1] == 0x9a) && ((req.reply[2] == 0x21)
 971                                 || (req.reply[2] == 0x20))) {
 972                                 mouse_kind = ADBMOUSE_TRACKBALL;
 973                                 init_trackball(id);
 974                         }
 975                         else if ((req.reply_len >= 4) &&
 976                             (req.reply[1] == 0x74) && (req.reply[2] == 0x70) &&
 977                             (req.reply[3] == 0x61) && (req.reply[4] == 0x64)) {
 978                                 mouse_kind = ADBMOUSE_TRACKPAD;
 979                                 init_trackpad(id);
 980                         }
 981                         else if ((req.reply_len >= 4) &&
 982                             (req.reply[1] == 0x4b) && (req.reply[2] == 0x4d) &&
 983                             (req.reply[3] == 0x4c) && (req.reply[4] == 0x31)) {
 984                                 mouse_kind = ADBMOUSE_TURBOMOUSE5;
 985                                 init_turbomouse(id);
 986                         }
 987                         else if ((req.reply_len == 9) &&
 988                             (req.reply[1] == 0x4b) && (req.reply[2] == 0x4f) &&
 989                             (req.reply[3] == 0x49) && (req.reply[4] == 0x54)) {
 990                                 if (adb_try_handler_change(id, 0x42)) {
 991                                         printk("\nADB MacAlly 2-button mouse at %d, handler set to 0x42", id);
 992                                         mouse_kind = ADBMOUSE_MACALLY2;
 993                                 }
 994                         }
 995                 }
 996                 printk("\n");
 997
 998                 adb_get_infos(id, &default_id, &cur_handler_id);
 999                 reg |= adbhid_input_reregister(id, default_id, org_handler_id,
1000                                                cur_handler_id, mouse_kind);
1001         }
1002         adbhid_input_devcleanup(reg);
1003 }
1004
1005 static void
1006 init_trackpad(int id)
1007 {
1008         struct adb_request req;
1009         unsigned char r1_buffer[8];
1010
1011         printk(" (trackpad)");
1012
1013         adb_request(&req, NULL, ADBREQ_SYNC | ADBREQ_REPLY, 1,
1014                     ADB_READREG(id,1));
1015         if (req.reply_len < 8)
1016             printk("bad length for reg. 1\n");
1017         else
1018         {
1019             memcpy(r1_buffer, &req.reply[1], 8);
1020
1021             adb_request(&req, NULL, ADBREQ_SYNC, 9,
1022                 ADB_WRITEREG(id,1),
1023                     r1_buffer[0],
1024                     r1_buffer[1],
1025                     r1_buffer[2],
1026                     r1_buffer[3],
1027                     r1_buffer[4],
1028                     r1_buffer[5],
1029                     0x0d,
1030                     r1_buffer[7]);
1031
1032             adb_request(&req, NULL, ADBREQ_SYNC, 9,
1033                 ADB_WRITEREG(id,2),
1034                     0x99,
1035                     0x94,
1036                     0x19,
1037                     0xff,
1038                     0xb2,
1039                     0x8a,
1040                     0x1b,
1041                     0x50);
1042
1043             adb_request(&req, NULL, ADBREQ_SYNC, 9,
1044                 ADB_WRITEREG(id,1),
1045                     r1_buffer[0],
1046                     r1_buffer[1],
1047                     r1_buffer[2],
1048                     r1_buffer[3],
1049                     r1_buffer[4],
1050                     r1_buffer[5],
1051                     0x03, /*r1_buffer[6],*/
1052                     r1_buffer[7]);
1053
1054             /* Without this flush, the trackpad may be locked up */
1055             adb_request(&req, NULL, ADBREQ_SYNC, 1, ADB_FLUSH(id));
1056         }
1057 }
1058
1059 static void
1060 init_trackball(int id)
1061 {
1062         struct adb_request req;
1063
1064         printk(" (trackman/mouseman)");
1065
1066         adb_request(&req, NULL, ADBREQ_SYNC, 3,
1067         ADB_WRITEREG(id,1), 00,0x81);
1068
1069         adb_request(&req, NULL, ADBREQ_SYNC, 3,
1070         ADB_WRITEREG(id,1), 01,0x81);
1071
1072         adb_request(&req, NULL, ADBREQ_SYNC, 3,
1073         ADB_WRITEREG(id,1), 02,0x81);
1074
1075         adb_request(&req, NULL, ADBREQ_SYNC, 3,
1076         ADB_WRITEREG(id,1), 03,0x38);
1077
1078         adb_request(&req, NULL, ADBREQ_SYNC, 3,
1079         ADB_WRITEREG(id,1), 00,0x81);
1080
1081         adb_request(&req, NULL, ADBREQ_SYNC, 3,
1082         ADB_WRITEREG(id,1), 01,0x81);
1083
1084         adb_request(&req, NULL, ADBREQ_SYNC, 3,
1085         ADB_WRITEREG(id,1), 02,0x81);
1086
1087         adb_request(&req, NULL, ADBREQ_SYNC, 3,
1088         ADB_WRITEREG(id,1), 03,0x38);
1089 }
1090
1091 static void
1092 init_turbomouse(int id)
1093 {
1094         struct adb_request req;
1095
1096         printk(" (TurboMouse 5)");
1097
1098         adb_request(&req, NULL, ADBREQ_SYNC, 1, ADB_FLUSH(id));
1099
1100         adb_request(&req, NULL, ADBREQ_SYNC, 1, ADB_FLUSH(3));
1101
1102         adb_request(&req, NULL, ADBREQ_SYNC, 9,
1103         ADB_WRITEREG(3,2),
1104             0xe7,
1105             0x8c,
1106             0,
1107             0,
1108             0,
1109             0xff,
1110             0xff,
1111             0x94);
1112
1113         adb_request(&req, NULL, ADBREQ_SYNC, 1, ADB_FLUSH(3));
1114
1115         adb_request(&req, NULL, ADBREQ_SYNC, 9,
1116         ADB_WRITEREG(3,2),
1117             0xa5,
1118             0x14,
1119             0,
1120             0,
1121             0x69,
1122             0xff,
1123             0xff,
1124             0x27);
1125 }
1126
1127 static void
1128 init_microspeed(int id)
1129 {
1130         struct adb_request req;
1131
1132         printk(" (Microspeed/MacPoint or compatible)");
1133
1134         adb_request(&req, NULL, ADBREQ_SYNC, 1, ADB_FLUSH(id));
1135
1136         /* This will initialize mice using the Microspeed, MacPoint and
1137            other compatible firmware. Bit 12 enables extended protocol.
1138
1139            Register 1 Listen (4 Bytes)
1140             0 -  3     Button is mouse (set also for double clicking!!!)
1141             4 -  7     Button is locking (affects change speed also)
1142             8 - 11     Button changes speed
1143            12          1 = Extended mouse mode, 0 = normal mouse mode
1144            13 - 15     unused 0
1145            16 - 23     normal speed
1146            24 - 31     changed speed
1147
1148        Register 1 talk holds version and product identification information.
1149        Register 1 Talk (4 Bytes):
1150             0 -  7     Product code
1151             8 - 23     undefined, reserved
1152            24 - 31     Version number
1153
1154        Speed 0 is max. 1 to 255 set speed in increments of 1/256 of max.
1155  */
1156         adb_request(&req, NULL, ADBREQ_SYNC, 5,
1157         ADB_WRITEREG(id,1),
1158             0x20,       /* alt speed = 0x20 (rather slow) */
1159             0x00,       /* norm speed = 0x00 (fastest) */
1160             0x10,       /* extended protocol, no speed change */
1161             0x07);      /* all buttons enabled as mouse buttons, no locking */
1162
1163
1164         adb_request(&req, NULL, ADBREQ_SYNC, 1, ADB_FLUSH(id));
1165 }
1166
1167 static void
1168 init_ms_a3(int id)
1169 {
1170         struct adb_request req;
1171
1172         printk(" (Mouse Systems A3 Mouse, or compatible)");
1173         adb_request(&req, NULL, ADBREQ_SYNC, 3,
1174         ADB_WRITEREG(id, 0x2),
1175             0x00,
1176             0x07);
1177
1178         adb_request(&req, NULL, ADBREQ_SYNC, 1, ADB_FLUSH(id));
1179 }
1180
1181 static int __init adbhid_init(void)
1182 {
1183 #ifndef CONFIG_MAC
1184         if (!machine_is(chrp) && !machine_is(powermac))
1185                 return 0;
1186 #endif
1187
1188         led_request.complete = 1;
1189
1190         adbhid_probe();
1191
1192         blocking_notifier_chain_register(&adb_client_list,
1193                         &adbhid_adb_notifier);
1194
1195         return 0;
1196 }
1197
1198 static void __exit adbhid_exit(void)
1199 {
1200 }
1201
1202 module_init(adbhid_init);
1203 module_exit(adbhid_exit);