drivers/macintosh/adbhid.c

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