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   1 /*
   2  * drivers/input/adbhid.c
   3  *
   4  * ADB HID driver for Power Macintosh computers.
   5  *
   6  * Adapted from drivers/macintosh/mac_keyb.c by Franz Sirl.
   7  * drivers/macintosh/mac_keyb.c was Copyright (C) 1996 Paul Mackerras
   8  * with considerable contributions from Ben Herrenschmidt and others.
   9  *
  10  * Copyright (C) 2000 Franz Sirl.
  11  *
  12  * Adapted to ADB changes and support for more devices by
  13  * Benjamin Herrenschmidt. Adapted from code in MkLinux
  14  * and reworked.
  15  *
  16  * Supported devices:
  17  *
  18  * - Standard 1 button mouse
  19  * - All standard Apple Extended protocol (handler ID 4)
  20  * - mouseman and trackman mice & trackballs
  21  * - PowerBook Trackpad (default setup: enable tapping)
  22  * - MicroSpeed mouse & trackball (needs testing)
  23  * - CH Products Trackball Pro (needs testing)
  24  * - Contour Design (Contour Mouse)
  25  * - Hunter digital (NoHandsMouse)
  26  * - Kensignton TurboMouse 5 (needs testing)
  27  * - Mouse Systems A3 mice and trackballs <aidan@kublai.com>
  28  * - MacAlly 2-buttons mouse (needs testing) <pochini@denise.shiny.it>
  29  *
  30  * To do:
  31  *
  32  * Improve Kensington support.
  33  * Split mouse/kbd
  34  * Move to syfs
  35  */
  36
  37 #include <linux/config.h>
  38 #include <linux/module.h>
  39 #include <linux/slab.h>
  40 #include <linux/init.h>
  41 #include <linux/notifier.h>
  42 #include <linux/input.h>
  43
  44 #include <linux/adb.h>
  45 #include <linux/cuda.h>
  46 #include <linux/pmu.h>
  47
  48 #include <asm/machdep.h>
  49 #ifdef CONFIG_PPC_PMAC
  50 #include <asm/pmac_feature.h>
  51 #endif
  52
  53 #ifdef CONFIG_PMAC_BACKLIGHT
  54 #include <asm/backlight.h>
  55 #endif
  56
  57 MODULE_AUTHOR("Franz Sirl <Franz.Sirl-kernel@lauterbach.com>");
  58
  59 #define KEYB_KEYREG     0       /* register # for key up/down data */
  60 #define KEYB_LEDREG     2       /* register # for leds on ADB keyboard */
  61 #define MOUSE_DATAREG   0       /* reg# for movement/button codes from mouse */
  62
  63 static int adb_message_handler(struct notifier_block *, unsigned long, void *);
  64 static struct notifier_block adbhid_adb_notifier = {
  65         .notifier_call  = adb_message_handler,
  66 };
  67
  68 /* Some special keys */
  69 #define ADB_KEY_DEL             0x33
  70 #define ADB_KEY_CMD             0x37
  71 #define ADB_KEY_CAPSLOCK        0x39
  72 #define ADB_KEY_FN              0x3f
  73 #define ADB_KEY_FWDEL           0x75
  74 #define ADB_KEY_POWER_OLD       0x7e
  75 #define ADB_KEY_POWER           0x7f
  76
  77 u8 adb_to_linux_keycodes[128] = {
  78         /* 0x00 */ KEY_A,               /*  30 */
  79         /* 0x01 */ KEY_S,               /*  31 */
  80         /* 0x02 */ KEY_D,               /*  32 */
  81         /* 0x03 */ KEY_F,               /*  33 */
  82         /* 0x04 */ KEY_H,               /*  35 */
  83         /* 0x05 */ KEY_G,               /*  34 */
  84         /* 0x06 */ KEY_Z,               /*  44 */
  85         /* 0x07 */ KEY_X,               /*  45 */
  86         /* 0x08 */ KEY_C,               /*  46 */
  87         /* 0x09 */ KEY_V,               /*  47 */
  88         /* 0x0a */ KEY_102ND,           /*  86 */
  89         /* 0x0b */ KEY_B,               /*  48 */
  90         /* 0x0c */ KEY_Q,               /*  16 */
  91         /* 0x0d */ KEY_W,               /*  17 */
  92         /* 0x0e */ KEY_E,               /*  18 */
  93         /* 0x0f */ KEY_R,               /*  19 */
  94         /* 0x10 */ KEY_Y,               /*  21 */
  95         /* 0x11 */ KEY_T,               /*  20 */
  96         /* 0x12 */ KEY_1,               /*   2 */
  97         /* 0x13 */ KEY_2,               /*   3 */
  98         /* 0x14 */ KEY_3,               /*   4 */
  99         /* 0x15 */ KEY_4,               /*   5 */
 100         /* 0x16 */ KEY_6,               /*   7 */
 101         /* 0x17 */ KEY_5,               /*   6 */
 102         /* 0x18 */ KEY_EQUAL,           /*  13 */
 103         /* 0x19 */ KEY_9,               /*  10 */
 104         /* 0x1a */ KEY_7,               /*   8 */
 105         /* 0x1b */ KEY_MINUS,           /*  12 */
 106         /* 0x1c */ KEY_8,               /*   9 */
 107         /* 0x1d */ KEY_0,               /*  11 */
 108         /* 0x1e */ KEY_RIGHTBRACE,      /*  27 */
 109         /* 0x1f */ KEY_O,               /*  24 */
 110         /* 0x20 */ KEY_U,               /*  22 */
 111         /* 0x21 */ KEY_LEFTBRACE,       /*  26 */
 112         /* 0x22 */ KEY_I,               /*  23 */
 113         /* 0x23 */ KEY_P,               /*  25 */
 114         /* 0x24 */ KEY_ENTER,           /*  28 */
 115         /* 0x25 */ KEY_L,               /*  38 */
 116         /* 0x26 */ KEY_J,               /*  36 */
 117         /* 0x27 */ KEY_APOSTROPHE,      /*  40 */
 118         /* 0x28 */ KEY_K,               /*  37 */
 119         /* 0x29 */ KEY_SEMICOLON,       /*  39 */
 120         /* 0x2a */ KEY_BACKSLASH,       /*  43 */
 121         /* 0x2b */ KEY_COMMA,           /*  51 */
 122         /* 0x2c */ KEY_SLASH,           /*  53 */
 123         /* 0x2d */ KEY_N,               /*  49 */
 124         /* 0x2e */ KEY_M,               /*  50 */
 125         /* 0x2f */ KEY_DOT,             /*  52 */
 126         /* 0x30 */ KEY_TAB,             /*  15 */
 127         /* 0x31 */ KEY_SPACE,           /*  57 */
 128         /* 0x32 */ KEY_GRAVE,           /*  41 */
 129         /* 0x33 */ KEY_BACKSPACE,       /*  14 */
 130         /* 0x34 */ KEY_KPENTER,         /*  96 */
 131         /* 0x35 */ KEY_ESC,             /*   1 */
 132         /* 0x36 */ KEY_LEFTCTRL,        /*  29 */
 133         /* 0x37 */ KEY_LEFTMETA,        /* 125 */
 134         /* 0x38 */ KEY_LEFTSHIFT,       /*  42 */
 135         /* 0x39 */ KEY_CAPSLOCK,        /*  58 */
 136         /* 0x3a */ KEY_LEFTALT,         /*  56 */
 137         /* 0x3b */ KEY_LEFT,            /* 105 */
 138         /* 0x3c */ KEY_RIGHT,           /* 106 */
 139         /* 0x3d */ KEY_DOWN,            /* 108 */
 140         /* 0x3e */ KEY_UP,              /* 103 */
 141         /* 0x3f */ 0,
 142         /* 0x40 */ 0,
 143         /* 0x41 */ KEY_KPDOT,           /*  83 */
 144         /* 0x42 */ 0,
 145         /* 0x43 */ KEY_KPASTERISK,      /*  55 */
 146         /* 0x44 */ 0,
 147         /* 0x45 */ KEY_KPPLUS,          /*  78 */
 148         /* 0x46 */ 0,
 149         /* 0x47 */ KEY_NUMLOCK,         /*  69 */
 150         /* 0x48 */ 0,
 151         /* 0x49 */ 0,
 152         /* 0x4a */ 0,
 153         /* 0x4b */ KEY_KPSLASH,         /*  98 */
 154         /* 0x4c */ KEY_KPENTER,         /*  96 */
 155         /* 0x4d */ 0,
 156         /* 0x4e */ KEY_KPMINUS,         /*  74 */
 157         /* 0x4f */ 0,
 158         /* 0x50 */ 0,
 159         /* 0x51 */ KEY_KPEQUAL,         /* 117 */
 160         /* 0x52 */ KEY_KP0,             /*  82 */
 161         /* 0x53 */ KEY_KP1,             /*  79 */
 162         /* 0x54 */ KEY_KP2,             /*  80 */
 163         /* 0x55 */ KEY_KP3,             /*  81 */
 164         /* 0x56 */ KEY_KP4,             /*  75 */
 165         /* 0x57 */ KEY_KP5,             /*  76 */
 166         /* 0x58 */ KEY_KP6,             /*  77 */
 167         /* 0x59 */ KEY_KP7,             /*  71 */
 168         /* 0x5a */ 0,
 169         /* 0x5b */ KEY_KP8,             /*  72 */
 170         /* 0x5c */ KEY_KP9,             /*  73 */
 171         /* 0x5d */ KEY_YEN,             /* 124 */
 172         /* 0x5e */ KEY_RO,              /*  89 */
 173         /* 0x5f */ KEY_KPCOMMA,         /* 121 */
 174         /* 0x60 */ KEY_F5,              /*  63 */
 175         /* 0x61 */ KEY_F6,              /*  64 */
 176         /* 0x62 */ KEY_F7,              /*  65 */
 177         /* 0x63 */ KEY_F3,              /*  61 */
 178         /* 0x64 */ KEY_F8,              /*  66 */
 179         /* 0x65 */ KEY_F9,              /*  67 */
 180         /* 0x66 */ KEY_HANJA,           /* 123 */
 181         /* 0x67 */ KEY_F11,             /*  87 */
 182         /* 0x68 */ KEY_HANGUEL,         /* 122 */
 183         /* 0x69 */ KEY_SYSRQ,           /*  99 */
 184         /* 0x6a */ 0,
 185         /* 0x6b */ KEY_SCROLLLOCK,      /*  70 */
 186         /* 0x6c */ 0,
 187         /* 0x6d */ KEY_F10,             /*  68 */
 188         /* 0x6e */ KEY_COMPOSE,         /* 127 */
 189         /* 0x6f */ KEY_F12,             /*  88 */
 190         /* 0x70 */ 0,
 191         /* 0x71 */ KEY_PAUSE,           /* 119 */
 192         /* 0x72 */ KEY_INSERT,          /* 110 */
 193         /* 0x73 */ KEY_HOME,            /* 102 */
 194         /* 0x74 */ KEY_PAGEUP,          /* 104 */
 195         /* 0x75 */ KEY_DELETE,          /* 111 */
 196         /* 0x76 */ KEY_F4,              /*  62 */
 197         /* 0x77 */ KEY_END,             /* 107 */
 198         /* 0x78 */ KEY_F2,              /*  60 */
 199         /* 0x79 */ KEY_PAGEDOWN,        /* 109 */
 200         /* 0x7a */ KEY_F1,              /*  59 */
 201         /* 0x7b */ KEY_RIGHTSHIFT,      /*  54 */
 202         /* 0x7c */ KEY_RIGHTALT,        /* 100 */
 203         /* 0x7d */ KEY_RIGHTCTRL,       /*  97 */
 204         /* 0x7e */ KEY_RIGHTMETA,       /* 126 */
 205         /* 0x7f */ KEY_POWER,           /* 116 */
 206 };
 207
 208 struct adbhid {
 209         struct input_dev *input;
 210         int id;
 211         int default_id;
 212         int original_handler_id;
 213         int current_handler_id;
 214         int mouse_kind;
 215         unsigned char *keycode;
 216         char name[64];
 217         char phys[32];
 218         int flags;
 219 };
 220
 221 #define FLAG_FN_KEY_PRESSED     0x00000001
 222 #define FLAG_POWER_FROM_FN      0x00000002
 223 #define FLAG_EMU_FWDEL_DOWN     0x00000004
 224
 225 static struct adbhid *adbhid[16];
 226
 227 static void adbhid_probe(void);
 228
 229 static void adbhid_input_keycode(int, int, int, struct pt_regs *);
 230
 231 static void init_trackpad(int id);
 232 static void init_trackball(int id);
 233 static void init_turbomouse(int id);
 234 static void init_microspeed(int id);
 235 static void init_ms_a3(int id);
 236
 237 static struct adb_ids keyboard_ids;
 238 static struct adb_ids mouse_ids;
 239 static struct adb_ids buttons_ids;
 240
 241 #ifdef CONFIG_PMAC_BACKLIGHT
 242 /* Exported to via-pmu.c */
 243 int disable_kernel_backlight = 0;
 244 #endif /* CONFIG_PMAC_BACKLIGHT */
 245
 246 /* Kind of keyboard, see Apple technote 1152  */
 247 #define ADB_KEYBOARD_UNKNOWN    0
 248 #define ADB_KEYBOARD_ANSI       0x0100
 249 #define ADB_KEYBOARD_ISO        0x0200
 250 #define ADB_KEYBOARD_JIS        0x0300
 251
 252 /* Kind of mouse  */
 253 #define ADBMOUSE_STANDARD_100   0       /* Standard 100cpi mouse (handler 1) */
 254 #define ADBMOUSE_STANDARD_200   1       /* Standard 200cpi mouse (handler 2) */
 255 #define ADBMOUSE_EXTENDED       2       /* Apple Extended mouse (handler 4) */
 256 #define ADBMOUSE_TRACKBALL      3       /* TrackBall (handler 4) */
 257 #define ADBMOUSE_TRACKPAD       4       /* Apple's PowerBook trackpad (handler 4) */
 258 #define ADBMOUSE_TURBOMOUSE5    5       /* Turbomouse 5 (previously req. mousehack) */
 259 #define ADBMOUSE_MICROSPEED     6       /* Microspeed mouse (&trackball ?), MacPoint */
 260 #define ADBMOUSE_TRACKBALLPRO   7       /* Trackball Pro (special buttons) */
 261 #define ADBMOUSE_MS_A3          8       /* Mouse systems A3 trackball (handler 3) */
 262 #define ADBMOUSE_MACALLY2       9       /* MacAlly 2-button mouse */
 263
 264 static void
 265 adbhid_keyboard_input(unsigned char *data, int nb, struct pt_regs *regs, int apoll)
 266 {
 267         int id = (data[0] >> 4) & 0x0f;
 268
 269         if (!adbhid[id]) {
 270                 printk(KERN_ERR "ADB HID on ID %d not yet registered, packet %#02x, %#02x, %#02x, %#02x\n",
 271                        id, data[0], data[1], data[2], data[3]);
 272                 return;
 273         }
 274
 275         /* first check this is from register 0 */
 276         if (nb != 3 || (data[0] & 3) != KEYB_KEYREG)
 277                 return;         /* ignore it */
 278         adbhid_input_keycode(id, data[1], 0, regs);
 279         if (!(data[2] == 0xff || (data[2] == 0x7f && data[1] == 0x7f)))
 280                 adbhid_input_keycode(id, data[2], 0, regs);
 281 }
 282
 283 static void
 284 adbhid_input_keycode(int id, int keycode, int repeat, struct pt_regs *regs)
 285 {
 286         struct adbhid *ahid = adbhid[id];
 287         int up_flag;
 288
 289         up_flag = (keycode & 0x80);
 290         keycode &= 0x7f;
 291
 292         switch (keycode) {
 293         case ADB_KEY_CAPSLOCK: /* Generate down/up events for CapsLock everytime. */
 294                 input_regs(ahid->input, regs);
 295                 input_report_key(ahid->input, KEY_CAPSLOCK, 1);
 296                 input_report_key(ahid->input, KEY_CAPSLOCK, 0);
 297                 input_sync(ahid->input);
 298                 return;
 299 #ifdef CONFIG_PPC_PMAC
 300         case ADB_KEY_POWER_OLD: /* Power key on PBook 3400 needs remapping */
 301                 switch(pmac_call_feature(PMAC_FTR_GET_MB_INFO,
 302                         NULL, PMAC_MB_INFO_MODEL, 0)) {
 303                 case PMAC_TYPE_COMET:
 304                 case PMAC_TYPE_HOOPER:
 305                 case PMAC_TYPE_KANGA:
 306                         keycode = ADB_KEY_POWER;
 307                 }
 308                 break;
 309         case ADB_KEY_POWER:
 310                 /* Fn + Command will produce a bogus "power" keycode */
 311                 if (ahid->flags & FLAG_FN_KEY_PRESSED) {
 312                         keycode = ADB_KEY_CMD;
 313                         if (up_flag)
 314                                 ahid->flags &= ~FLAG_POWER_FROM_FN;
 315                         else
 316                                 ahid->flags |= FLAG_POWER_FROM_FN;
 317                 } else if (ahid->flags & FLAG_POWER_FROM_FN) {
 318                         keycode = ADB_KEY_CMD;
 319                         ahid->flags &= ~FLAG_POWER_FROM_FN;
 320                 }
 321                 break;
 322         case ADB_KEY_FN:
 323                 /* Keep track of the Fn key state */
 324                 if (up_flag) {
 325                         ahid->flags &= ~FLAG_FN_KEY_PRESSED;
 326                         /* Emulate Fn+delete = forward delete */
 327                         if (ahid->flags & FLAG_EMU_FWDEL_DOWN) {
 328                                 ahid->flags &= ~FLAG_EMU_FWDEL_DOWN;
 329                                 keycode = ADB_KEY_FWDEL;
 330                                 break;
 331                         }
 332                 } else
 333                         ahid->flags |= FLAG_FN_KEY_PRESSED;
 334                 /* Swallow the key press */
 335                 return;
 336         case ADB_KEY_DEL:
 337                 /* Emulate Fn+delete = forward delete */
 338                 if (ahid->flags & FLAG_FN_KEY_PRESSED) {
 339                         keycode = ADB_KEY_FWDEL;
 340                         if (up_flag)
 341                                 ahid->flags &= ~FLAG_EMU_FWDEL_DOWN;
 342                         else
 343                                 ahid->flags |= FLAG_EMU_FWDEL_DOWN;
 344                 }
 345                 break;
 346 #endif /* CONFIG_PPC_PMAC */
 347         }
 348
 349         if (adbhid[id]->keycode[keycode]) {
 350                 input_regs(adbhid[id]->input, regs);
 351                 input_report_key(adbhid[id]->input,
 352                                  adbhid[id]->keycode[keycode], !up_flag);
 353                 input_sync(adbhid[id]->input);
 354         } else
 355                 printk(KERN_INFO "Unhandled ADB key (scancode %#02x) %s.\n", keycode,
 356                        up_flag ? "released" : "pressed");
 357
 358 }
 359
 360 static void
 361 adbhid_mouse_input(unsigned char *data, int nb, struct pt_regs *regs, int autopoll)
 362 {
 363         int id = (data[0] >> 4) & 0x0f;
 364
 365         if (!adbhid[id]) {
 366                 printk(KERN_ERR "ADB HID on ID %d not yet registered\n", id);
 367                 return;
 368         }
 369
 370   /*
 371     Handler 1 -- 100cpi original Apple mouse protocol.
 372     Handler 2 -- 200cpi original Apple mouse protocol.
 373
 374     For Apple's standard one-button mouse protocol the data array will
 375     contain the following values:
 376
 377                 BITS    COMMENTS
 378     data[0] = dddd 1100 ADB command: Talk, register 0, for device dddd.
 379     data[1] = bxxx xxxx First button and x-axis motion.
 380     data[2] = byyy yyyy Second button and y-axis motion.
 381
 382     Handler 4 -- Apple Extended mouse protocol.
 383
 384     For Apple's 3-button mouse protocol the data array will contain the
 385     following values:
 386
 387                 BITS    COMMENTS
 388     data[0] = dddd 1100 ADB command: Talk, register 0, for device dddd.
 389     data[1] = bxxx xxxx Left button and x-axis motion.
 390     data[2] = byyy yyyy Second button and y-axis motion.
 391     data[3] = byyy bxxx Third button and fourth button.  Y is additional
 392               high bits of y-axis motion.  XY is additional
 393               high bits of x-axis motion.
 394
 395     MacAlly 2-button mouse protocol.
 396
 397     For MacAlly 2-button mouse protocol the data array will contain the
 398     following values:
 399
 400                 BITS    COMMENTS
 401     data[0] = dddd 1100 ADB command: Talk, register 0, for device dddd.
 402     data[1] = bxxx xxxx Left button and x-axis motion.
 403     data[2] = byyy yyyy Right button and y-axis motion.
 404     data[3] = ???? ???? unknown
 405     data[4] = ???? ???? unknown
 406
 407   */
 408
 409         /* If it's a trackpad, we alias the second button to the first.
 410            NOTE: Apple sends an ADB flush command to the trackpad when
 411                  the first (the real) button is released. We could do
 412                  this here using async flush requests.
 413         */
 414         switch (adbhid[id]->mouse_kind)
 415         {
 416             case ADBMOUSE_TRACKPAD:
 417                 data[1] = (data[1] & 0x7f) | ((data[1] & data[2]) & 0x80);
 418                 data[2] = data[2] | 0x80;
 419                 break;
 420             case ADBMOUSE_MICROSPEED:
 421                 data[1] = (data[1] & 0x7f) | ((data[3] & 0x01) << 7);
 422                 data[2] = (data[2] & 0x7f) | ((data[3] & 0x02) << 6);
 423                 data[3] = (data[3] & 0x77) | ((data[3] & 0x04) << 5)
 424                         | (data[3] & 0x08);
 425                 break;
 426             case ADBMOUSE_TRACKBALLPRO:
 427                 data[1] = (data[1] & 0x7f) | (((data[3] & 0x04) << 5)
 428                         & ((data[3] & 0x08) << 4));
 429                 data[2] = (data[2] & 0x7f) | ((data[3] & 0x01) << 7);
 430                 data[3] = (data[3] & 0x77) | ((data[3] & 0x02) << 6);
 431                 break;
 432             case ADBMOUSE_MS_A3:
 433                 data[1] = (data[1] & 0x7f) | ((data[3] & 0x01) << 7);
 434                 data[2] = (data[2] & 0x7f) | ((data[3] & 0x02) << 6);
 435                 data[3] = ((data[3] & 0x04) << 5);
 436                 break;
 437             case ADBMOUSE_MACALLY2:
 438                 data[3] = (data[2] & 0x80) ? 0x80 : 0x00;
 439                 data[2] |= 0x80;  /* Right button is mapped as button 3 */
 440                 nb=4;
 441                 break;
 442         }
 443
 444         input_regs(adbhid[id]->input, regs);
 445
 446         input_report_key(adbhid[id]->input, BTN_LEFT,   !((data[1] >> 7) & 1));
 447         input_report_key(adbhid[id]->input, BTN_MIDDLE, !((data[2] >> 7) & 1));
 448
 449         if (nb >= 4 && adbhid[id]->mouse_kind != ADBMOUSE_TRACKPAD)
 450                 input_report_key(adbhid[id]->input, BTN_RIGHT,  !((data[3] >> 7) & 1));
 451
 452         input_report_rel(adbhid[id]->input, REL_X,
 453                          ((data[2]&0x7f) < 64 ? (data[2]&0x7f) : (data[2]&0x7f)-128 ));
 454         input_report_rel(adbhid[id]->input, REL_Y,
 455                          ((data[1]&0x7f) < 64 ? (data[1]&0x7f) : (data[1]&0x7f)-128 ));
 456
 457         input_sync(adbhid[id]->input);
 458 }
 459
 460 static void
 461 adbhid_buttons_input(unsigned char *data, int nb, struct pt_regs *regs, int autopoll)
 462 {
 463         int id = (data[0] >> 4) & 0x0f;
 464
 465         if (!adbhid[id]) {
 466                 printk(KERN_ERR "ADB HID on ID %d not yet registered\n", id);
 467                 return;
 468         }
 469
 470         input_regs(adbhid[id]->input, regs);
 471
 472         switch (adbhid[id]->original_handler_id) {
 473         default:
 474         case 0x02: /* Adjustable keyboard button device */
 475           {
 476                 int down = (data[1] == (data[1] & 0xf));
 477
 478                 switch (data[1] & 0x0f) {
 479                 case 0x0:       /* microphone */
 480                         input_report_key(adbhid[id]->input, KEY_SOUND, down);
 481                         break;
 482
 483                 case 0x1:       /* mute */
 484                         input_report_key(adbhid[id]->input, KEY_MUTE, down);
 485                         break;
 486
 487                 case 0x2:       /* volume decrease */
 488                         input_report_key(adbhid[id]->input, KEY_VOLUMEDOWN, down);
 489                         break;
 490
 491                 case 0x3:       /* volume increase */
 492                         input_report_key(adbhid[id]->input, KEY_VOLUMEUP, down);
 493                         break;
 494
 495                 default:
 496                         printk(KERN_INFO "Unhandled ADB_MISC event %02x, %02x, %02x, %02x\n",
 497                                data[0], data[1], data[2], data[3]);
 498                         break;
 499                 }
 500           }
 501           break;
 502
 503         case 0x1f: /* Powerbook button device */
 504           {
 505                 int down = (data[1] == (data[1] & 0xf));
 506 #ifdef CONFIG_PMAC_BACKLIGHT
 507                 int backlight = get_backlight_level();
 508 #endif
 509                 /*
 510                  * XXX: Where is the contrast control for the passive?
 511                  *  -- Cort
 512                  */
 513
 514                 switch (data[1] & 0x0f) {
 515                 case 0x8:       /* mute */
 516                         input_report_key(adbhid[id]->input, KEY_MUTE, down);
 517                         break;
 518
 519                 case 0x7:       /* volume decrease */
 520                         input_report_key(adbhid[id]->input, KEY_VOLUMEDOWN, down);
 521                         break;
 522
 523                 case 0x6:       /* volume increase */
 524                         input_report_key(adbhid[id]->input, KEY_VOLUMEUP, down);
 525                         break;
 526
 527                 case 0xb:       /* eject */
 528                         input_report_key(adbhid[id]->input, KEY_EJECTCD, down);
 529                         break;
 530
 531                 case 0xa:       /* brightness decrease */
 532 #ifdef CONFIG_PMAC_BACKLIGHT
 533                         if (!disable_kernel_backlight) {
 534                                 if (down && backlight >= 0) {
 535                                         if (backlight > BACKLIGHT_OFF)
 536                                                 set_backlight_level(backlight-1);
 537                                         else
 538                                                 set_backlight_level(BACKLIGHT_OFF);
 539                                 }
 540                         }
 541 #endif /* CONFIG_PMAC_BACKLIGHT */
 542                         input_report_key(adbhid[id]->input, KEY_BRIGHTNESSDOWN, down);
 543                         break;
 544
 545                 case 0x9:       /* brightness increase */
 546 #ifdef CONFIG_PMAC_BACKLIGHT
 547                         if (!disable_kernel_backlight) {
 548                                 if (down && backlight >= 0) {
 549                                         if (backlight < BACKLIGHT_MAX)
 550                                                 set_backlight_level(backlight+1);
 551                                         else
 552                                                 set_backlight_level(BACKLIGHT_MAX);
 553                                 }
 554                         }
 555 #endif /* CONFIG_PMAC_BACKLIGHT */
 556                         input_report_key(adbhid[id]->input, KEY_BRIGHTNESSUP, down);
 557                         break;
 558
 559                 case 0xc:       /* videomode switch */
 560                         input_report_key(adbhid[id]->input, KEY_SWITCHVIDEOMODE, down);
 561                         break;
 562
 563                 case 0xd:       /* keyboard illumination toggle */
 564                         input_report_key(adbhid[id]->input, KEY_KBDILLUMTOGGLE, down);
 565                         break;
 566
 567                 case 0xe:       /* keyboard illumination decrease */
 568                         input_report_key(adbhid[id]->input, KEY_KBDILLUMDOWN, down);
 569                         break;
 570
 571                 case 0xf:
 572                         switch (data[1]) {
 573                         case 0x8f:
 574                         case 0x0f:
 575                                 /* keyboard illumination increase */
 576                                 input_report_key(adbhid[id]->input, KEY_KBDILLUMUP, down);
 577                                 break;
 578
 579                         case 0x7f:
 580                         case 0xff:
 581                                 /* keypad overlay toogle */
 582                                 break;
 583
 584                         default:
 585                                 printk(KERN_INFO "Unhandled ADB_MISC event %02x, %02x, %02x, %02x\n",
 586                                        data[0], data[1], data[2], data[3]);
 587                                 break;
 588                         }
 589                         break;
 590                 default:
 591                         printk(KERN_INFO "Unhandled ADB_MISC event %02x, %02x, %02x, %02x\n",
 592                                data[0], data[1], data[2], data[3]);
 593                         break;
 594                 }
 595           }
 596           break;
 597         }
 598
 599         input_sync(adbhid[id]->input);
 600 }
 601
 602 static struct adb_request led_request;
 603 static int leds_pending[16];
 604 static int leds_req_pending;
 605 static int pending_devs[16];
 606 static int pending_led_start=0;
 607 static int pending_led_end=0;
 608 static DEFINE_SPINLOCK(leds_lock);
 609
 610 static void leds_done(struct adb_request *req)
 611 {
 612         int leds = 0, device = 0, pending = 0;
 613         unsigned long flags;
 614
 615         spin_lock_irqsave(&leds_lock, flags);
 616
 617         if (pending_led_start != pending_led_end) {
 618                 device = pending_devs[pending_led_start];
 619                 leds = leds_pending[device] & 0xff;
 620                 leds_pending[device] = 0;
 621                 pending_led_start++;
 622                 pending_led_start = (pending_led_start < 16) ? pending_led_start : 0;
 623                 pending = leds_req_pending;
 624         } else
 625                 leds_req_pending = 0;
 626         spin_unlock_irqrestore(&leds_lock, flags);
 627         if (pending)
 628                 adb_request(&led_request, leds_done, 0, 3,
 629                             ADB_WRITEREG(device, KEYB_LEDREG), 0xff, ~leds);
 630 }
 631
 632 static void real_leds(unsigned char leds, int device)
 633 {
 634         unsigned long flags;
 635
 636         spin_lock_irqsave(&leds_lock, flags);
 637         if (!leds_req_pending) {
 638                 leds_req_pending = 1;
 639                 spin_unlock_irqrestore(&leds_lock, flags);
 640                 adb_request(&led_request, leds_done, 0, 3,
 641                             ADB_WRITEREG(device, KEYB_LEDREG), 0xff, ~leds);
 642                 return;
 643         } else {
 644                 if (!(leds_pending[device] & 0x100)) {
 645                         pending_devs[pending_led_end] = device;
 646                         pending_led_end++;
 647                         pending_led_end = (pending_led_end < 16) ? pending_led_end : 0;
 648                 }
 649                 leds_pending[device] = leds | 0x100;
 650         }
 651         spin_unlock_irqrestore(&leds_lock, flags);
 652 }
 653
 654 /*
 655  * Event callback from the input module. Events that change the state of
 656  * the hardware are processed here.
 657  */
 658 static int adbhid_kbd_event(struct input_dev *dev, unsigned int type, unsigned int code, int value)
 659 {
 660         struct adbhid *adbhid = dev->private;
 661         unsigned char leds;
 662
 663         switch (type) {
 664         case EV_LED:
 665           leds = (test_bit(LED_SCROLLL, dev->led) ? 4 : 0)
 666                | (test_bit(LED_NUML,    dev->led) ? 1 : 0)
 667                | (test_bit(LED_CAPSL,   dev->led) ? 2 : 0);
 668           real_leds(leds, adbhid->id);
 669           return 0;
 670         }
 671
 672         return -1;
 673 }
 674
 675 static int
 676 adb_message_handler(struct notifier_block *this, unsigned long code, void *x)
 677 {
 678         switch (code) {
 679         case ADB_MSG_PRE_RESET:
 680         case ADB_MSG_POWERDOWN:
 681                 /* Stop the repeat timer. Autopoll is already off at this point */
 682                 {
 683                         int i;
 684                         for (i = 1; i < 16; i++) {
 685                                 if (adbhid[i])
 686                                         del_timer_sync(&adbhid[i]->input->timer);
 687                         }
 688                 }
 689
 690                 /* Stop pending led requests */
 691                 while(leds_req_pending)
 692                         adb_poll();
 693                 break;
 694
 695         case ADB_MSG_POST_RESET:
 696                 adbhid_probe();
 697                 break;
 698         }
 699         return NOTIFY_DONE;
 700 }
 701
 702 static int
 703 adbhid_input_register(int id, int default_id, int original_handler_id,
 704                       int current_handler_id, int mouse_kind)
 705 {
 706         struct adbhid *hid;
 707         struct input_dev *input_dev;
 708         int err;
 709         int i;
 710
 711         if (adbhid[id]) {
 712                 printk(KERN_ERR "Trying to reregister ADB HID on ID %d\n", id);
 713                 return -EEXIST;
 714         }
 715
 716         adbhid[id] = hid = kzalloc(sizeof(struct adbhid), GFP_KERNEL);
 717         input_dev = input_allocate_device();
 718         if (!hid || !input_dev) {
 719                 err = -ENOMEM;
 720                 goto fail;
 721
 722         }
 723
 724         sprintf(hid->phys, "adb%d:%d.%02x/input", id, default_id, original_handler_id);
 725
 726         hid->input = input_dev;
 727         hid->id = default_id;
 728         hid->original_handler_id = original_handler_id;
 729         hid->current_handler_id = current_handler_id;
 730         hid->mouse_kind = mouse_kind;
 731         hid->flags = 0;
 732         input_dev->private = hid;
 733         input_dev->name = hid->name;
 734         input_dev->phys = hid->phys;
 735         input_dev->id.bustype = BUS_ADB;
 736         input_dev->id.vendor = 0x0001;
 737         input_dev->id.product = (id << 12) | (default_id << 8) | original_handler_id;
 738         input_dev->id.version = 0x0100;
 739
 740         switch (default_id) {
 741         case ADB_KEYBOARD:
 742                 hid->keycode = kmalloc(sizeof(adb_to_linux_keycodes), GFP_KERNEL);
 743                 if (!hid->keycode) {
 744                         err = -ENOMEM;
 745                         goto fail;
 746                 }
 747
 748                 sprintf(hid->name, "ADB keyboard");
 749
 750                 memcpy(hid->keycode, adb_to_linux_keycodes, sizeof(adb_to_linux_keycodes));
 751
 752                 printk(KERN_INFO "Detected ADB keyboard, type ");
 753                 switch (original_handler_id) {
 754                 default:
 755                         printk("<unknown>.\n");
 756                         input_dev->id.version = ADB_KEYBOARD_UNKNOWN;
 757                         break;
 758
 759                 case 0x01: case 0x02: case 0x03: case 0x06: case 0x08:
 760                 case 0x0C: case 0x10: case 0x18: case 0x1B: case 0x1C:
 761                 case 0xC0: case 0xC3: case 0xC6:
 762                         printk("ANSI.\n");
 763                         input_dev->id.version = ADB_KEYBOARD_ANSI;
 764                         break;
 765
 766                 case 0x04: case 0x05: case 0x07: case 0x09: case 0x0D:
 767                 case 0x11: case 0x14: case 0x19: case 0x1D: case 0xC1:
 768                 case 0xC4: case 0xC7:
 769                         printk("ISO, swapping keys.\n");
 770                         input_dev->id.version = ADB_KEYBOARD_ISO;
 771                         i = hid->keycode[10];
 772                         hid->keycode[10] = hid->keycode[50];
 773                         hid->keycode[50] = i;
 774                         break;
 775
 776                 case 0x12: case 0x15: case 0x16: case 0x17: case 0x1A:
 777                 case 0x1E: case 0xC2: case 0xC5: case 0xC8: case 0xC9:
 778                         printk("JIS.\n");
 779                         input_dev->id.version = ADB_KEYBOARD_JIS;
 780                         break;
 781                 }
 782
 783                 for (i = 0; i < 128; i++)
 784                         if (hid->keycode[i])
 785                                 set_bit(hid->keycode[i], input_dev->keybit);
 786
 787                 input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_LED) | BIT(EV_REP);
 788                 input_dev->ledbit[0] = BIT(LED_SCROLLL) | BIT(LED_CAPSL) | BIT(LED_NUML);
 789                 input_dev->event = adbhid_kbd_event;
 790                 input_dev->keycodemax = 127;
 791                 input_dev->keycodesize = 1;
 792                 break;
 793
 794         case ADB_MOUSE:
 795                 sprintf(hid->name, "ADB mouse");
 796
 797                 input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_REL);
 798                 input_dev->keybit[LONG(BTN_MOUSE)] = BIT(BTN_LEFT) | BIT(BTN_MIDDLE) | BIT(BTN_RIGHT);
 799                 input_dev->relbit[0] = BIT(REL_X) | BIT(REL_Y);
 800                 break;
 801
 802         case ADB_MISC:
 803                 switch (original_handler_id) {
 804                 case 0x02: /* Adjustable keyboard button device */
 805                         sprintf(hid->name, "ADB adjustable keyboard buttons");
 806                         input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_REP);
 807                         set_bit(KEY_SOUND, input_dev->keybit);
 808                         set_bit(KEY_MUTE, input_dev->keybit);
 809                         set_bit(KEY_VOLUMEUP, input_dev->keybit);
 810                         set_bit(KEY_VOLUMEDOWN, input_dev->keybit);
 811                         break;
 812                 case 0x1f: /* Powerbook button device */
 813                         sprintf(hid->name, "ADB Powerbook buttons");
 814                         input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_REP);
 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                         set_bit(KEY_BRIGHTNESSUP, input_dev->keybit);
 819                         set_bit(KEY_BRIGHTNESSDOWN, input_dev->keybit);
 820                         set_bit(KEY_EJECTCD, input_dev->keybit);
 821                         set_bit(KEY_SWITCHVIDEOMODE, input_dev->keybit);
 822                         set_bit(KEY_KBDILLUMTOGGLE, input_dev->keybit);
 823                         set_bit(KEY_KBDILLUMDOWN, input_dev->keybit);
 824                         set_bit(KEY_KBDILLUMUP, input_dev->keybit);
 825                         break;
 826                 }
 827                 if (hid->name[0])
 828                         break;
 829                 /* else fall through */
 830
 831         default:
 832                 printk(KERN_INFO "Trying to register unknown ADB device to input layer.\n");
 833                 err = -ENODEV;
 834                 goto fail;
 835         }
 836
 837         input_dev->keycode = hid->keycode;
 838
 839         input_register_device(input_dev);
 840
 841         if (default_id == ADB_KEYBOARD) {
 842                 /* HACK WARNING!! This should go away as soon there is an utility
 843                  * to control that for event devices.
 844                  */
 845                 input_dev->rep[REP_DELAY] = 500;   /* input layer default: 250 */
 846                 input_dev->rep[REP_PERIOD] = 66; /* input layer default: 33 */
 847         }
 848
 849         return 0;
 850
 851  fail:  input_free_device(input_dev);
 852         kfree(hid);
 853         adbhid[id] = NULL;
 854         return err;
 855 }
 856
 857 static void adbhid_input_unregister(int id)
 858 {
 859         input_unregister_device(adbhid[id]->input);
 860         if (adbhid[id]->keycode)
 861                 kfree(adbhid[id]->keycode);
 862         kfree(adbhid[id]);
 863         adbhid[id] = NULL;
 864 }
 865
 866
 867 static u16
 868 adbhid_input_reregister(int id, int default_id, int org_handler_id,
 869                         int cur_handler_id, int mk)
 870 {
 871         if (adbhid[id]) {
 872                 if (adbhid[id]->input->id.product !=
 873                     ((id << 12)|(default_id << 8)|org_handler_id)) {
 874                         adbhid_input_unregister(id);
 875                         adbhid_input_register(id, default_id, org_handler_id,
 876                                               cur_handler_id, mk);
 877                 }
 878         } else
 879                 adbhid_input_register(id, default_id, org_handler_id,
 880                                       cur_handler_id, mk);
 881         return 1<<id;
 882 }
 883
 884 static void
 885 adbhid_input_devcleanup(u16 exist)
 886 {
 887         int i;
 888         for(i=1; i<16; i++)
 889                 if (adbhid[i] && !(exist&(1<<i)))
 890                         adbhid_input_unregister(i);
 891 }
 892
 893 static void
 894 adbhid_probe(void)
 895 {
 896         struct adb_request req;
 897         int i, default_id, org_handler_id, cur_handler_id;
 898         u16 reg = 0;
 899
 900         adb_register(ADB_MOUSE, 0, &mouse_ids, adbhid_mouse_input);
 901         adb_register(ADB_KEYBOARD, 0, &keyboard_ids, adbhid_keyboard_input);
 902         adb_register(ADB_MISC, 0, &buttons_ids, adbhid_buttons_input);
 903
 904         for (i = 0; i < keyboard_ids.nids; i++) {
 905                 int id = keyboard_ids.id[i];
 906
 907                 adb_get_infos(id, &default_id, &org_handler_id);
 908
 909                 /* turn off all leds */
 910                 adb_request(&req, NULL, ADBREQ_SYNC, 3,
 911                             ADB_WRITEREG(id, KEYB_LEDREG), 0xff, 0xff);
 912
 913                 /* Enable full feature set of the keyboard
 914                    ->get it to send separate codes for left and right shift,
 915                    control, option keys */
 916 #if 0           /* handler 5 doesn't send separate codes for R modifiers */
 917                 if (adb_try_handler_change(id, 5))
 918                         printk("ADB keyboard at %d, handler set to 5\n", id);
 919                 else
 920 #endif
 921                 if (adb_try_handler_change(id, 3))
 922                         printk("ADB keyboard at %d, handler set to 3\n", id);
 923                 else
 924                         printk("ADB keyboard at %d, handler 1\n", id);
 925
 926                 adb_get_infos(id, &default_id, &cur_handler_id);
 927                 reg |= adbhid_input_reregister(id, default_id, org_handler_id,
 928                                                cur_handler_id, 0);
 929         }
 930
 931         for (i = 0; i < buttons_ids.nids; i++) {
 932                 int id = buttons_ids.id[i];
 933
 934                 adb_get_infos(id, &default_id, &org_handler_id);
 935                 reg |= adbhid_input_reregister(id, default_id, org_handler_id,
 936                                                org_handler_id, 0);
 937         }
 938
 939         /* Try to switch all mice to handler 4, or 2 for three-button
 940            mode and full resolution. */
 941         for (i = 0; i < mouse_ids.nids; i++) {
 942                 int id = mouse_ids.id[i];
 943                 int mouse_kind;
 944
 945                 adb_get_infos(id, &default_id, &org_handler_id);
 946
 947                 if (adb_try_handler_change(id, 4)) {
 948                         printk("ADB mouse at %d, handler set to 4", id);
 949                         mouse_kind = ADBMOUSE_EXTENDED;
 950                 }
 951                 else if (adb_try_handler_change(id, 0x2F)) {
 952                         printk("ADB mouse at %d, handler set to 0x2F", id);
 953                         mouse_kind = ADBMOUSE_MICROSPEED;
 954                 }
 955                 else if (adb_try_handler_change(id, 0x42)) {
 956                         printk("ADB mouse at %d, handler set to 0x42", id);
 957                         mouse_kind = ADBMOUSE_TRACKBALLPRO;
 958                 }
 959                 else if (adb_try_handler_change(id, 0x66)) {
 960                         printk("ADB mouse at %d, handler set to 0x66", id);
 961                         mouse_kind = ADBMOUSE_MICROSPEED;
 962                 }
 963                 else if (adb_try_handler_change(id, 0x5F)) {
 964                         printk("ADB mouse at %d, handler set to 0x5F", id);
 965                         mouse_kind = ADBMOUSE_MICROSPEED;
 966                 }
 967                 else if (adb_try_handler_change(id, 3)) {
 968                         printk("ADB mouse at %d, handler set to 3", id);
 969                         mouse_kind = ADBMOUSE_MS_A3;
 970                 }
 971                 else if (adb_try_handler_change(id, 2)) {
 972                         printk("ADB mouse at %d, handler set to 2", id);
 973                         mouse_kind = ADBMOUSE_STANDARD_200;
 974                 }
 975                 else {
 976                         printk("ADB mouse at %d, handler 1", id);
 977                         mouse_kind = ADBMOUSE_STANDARD_100;
 978                 }
 979
 980                 if ((mouse_kind == ADBMOUSE_TRACKBALLPRO)
 981                     || (mouse_kind == ADBMOUSE_MICROSPEED)) {
 982                         init_microspeed(id);
 983                 } else if (mouse_kind == ADBMOUSE_MS_A3) {
 984                         init_ms_a3(id);
 985                 } else if (mouse_kind ==  ADBMOUSE_EXTENDED) {
 986                         /*
 987                          * Register 1 is usually used for device
 988                          * identification.  Here, we try to identify
 989                          * a known device and call the appropriate
 990                          * init function.
 991                          */
 992                         adb_request(&req, NULL, ADBREQ_SYNC | ADBREQ_REPLY, 1,
 993                                     ADB_READREG(id, 1));
 994
 995                         if ((req.reply_len) &&
 996                             (req.reply[1] == 0x9a) && ((req.reply[2] == 0x21)
 997                                 || (req.reply[2] == 0x20))) {
 998                                 mouse_kind = ADBMOUSE_TRACKBALL;
 999                                 init_trackball(id);
1000                         }
1001                         else if ((req.reply_len >= 4) &&
1002                             (req.reply[1] == 0x74) && (req.reply[2] == 0x70) &&
1003                             (req.reply[3] == 0x61) && (req.reply[4] == 0x64)) {
1004                                 mouse_kind = ADBMOUSE_TRACKPAD;
1005                                 init_trackpad(id);
1006                         }
1007                         else if ((req.reply_len >= 4) &&
1008                             (req.reply[1] == 0x4b) && (req.reply[2] == 0x4d) &&
1009                             (req.reply[3] == 0x4c) && (req.reply[4] == 0x31)) {
1010                                 mouse_kind = ADBMOUSE_TURBOMOUSE5;
1011                                 init_turbomouse(id);
1012                         }
1013                         else if ((req.reply_len == 9) &&
1014                             (req.reply[1] == 0x4b) && (req.reply[2] == 0x4f) &&
1015                             (req.reply[3] == 0x49) && (req.reply[4] == 0x54)) {
1016                                 if (adb_try_handler_change(id, 0x42)) {
1017                                         printk("\nADB MacAlly 2-button mouse at %d, handler set to 0x42", id);
1018                                         mouse_kind = ADBMOUSE_MACALLY2;
1019                                 }
1020                         }
1021                 }
1022                 printk("\n");
1023
1024                 adb_get_infos(id, &default_id, &cur_handler_id);
1025                 reg |= adbhid_input_reregister(id, default_id, org_handler_id,
1026                                                cur_handler_id, mouse_kind);
1027         }
1028         adbhid_input_devcleanup(reg);
1029 }
1030
1031 static void
1032 init_trackpad(int id)
1033 {
1034         struct adb_request req;
1035         unsigned char r1_buffer[8];
1036
1037         printk(" (trackpad)");
1038
1039         adb_request(&req, NULL, ADBREQ_SYNC | ADBREQ_REPLY, 1,
1040                     ADB_READREG(id,1));
1041         if (req.reply_len < 8)
1042             printk("bad length for reg. 1\n");
1043         else
1044         {
1045             memcpy(r1_buffer, &req.reply[1], 8);
1046
1047             adb_request(&req, NULL, ADBREQ_SYNC, 9,
1048                 ADB_WRITEREG(id,1),
1049                     r1_buffer[0],
1050                     r1_buffer[1],
1051                     r1_buffer[2],
1052                     r1_buffer[3],
1053                     r1_buffer[4],
1054                     r1_buffer[5],
1055                     0x0d,
1056                     r1_buffer[7]);
1057
1058             adb_request(&req, NULL, ADBREQ_SYNC, 9,
1059                 ADB_WRITEREG(id,2),
1060                     0x99,
1061                     0x94,
1062                     0x19,
1063                     0xff,
1064                     0xb2,
1065                     0x8a,
1066                     0x1b,
1067                     0x50);
1068
1069             adb_request(&req, NULL, ADBREQ_SYNC, 9,
1070                 ADB_WRITEREG(id,1),
1071                     r1_buffer[0],
1072                     r1_buffer[1],
1073                     r1_buffer[2],
1074                     r1_buffer[3],
1075                     r1_buffer[4],
1076                     r1_buffer[5],
1077                     0x03, /*r1_buffer[6],*/
1078                     r1_buffer[7]);
1079
1080             /* Without this flush, the trackpad may be locked up */
1081             adb_request(&req, NULL, ADBREQ_SYNC, 1, ADB_FLUSH(id));
1082         }
1083 }
1084
1085 static void
1086 init_trackball(int id)
1087 {
1088         struct adb_request req;
1089
1090         printk(" (trackman/mouseman)");
1091
1092         adb_request(&req, NULL, ADBREQ_SYNC, 3,
1093         ADB_WRITEREG(id,1), 00,0x81);
1094
1095         adb_request(&req, NULL, ADBREQ_SYNC, 3,
1096         ADB_WRITEREG(id,1), 01,0x81);
1097
1098         adb_request(&req, NULL, ADBREQ_SYNC, 3,
1099         ADB_WRITEREG(id,1), 02,0x81);
1100
1101         adb_request(&req, NULL, ADBREQ_SYNC, 3,
1102         ADB_WRITEREG(id,1), 03,0x38);
1103
1104         adb_request(&req, NULL, ADBREQ_SYNC, 3,
1105         ADB_WRITEREG(id,1), 00,0x81);
1106
1107         adb_request(&req, NULL, ADBREQ_SYNC, 3,
1108         ADB_WRITEREG(id,1), 01,0x81);
1109
1110         adb_request(&req, NULL, ADBREQ_SYNC, 3,
1111         ADB_WRITEREG(id,1), 02,0x81);
1112
1113         adb_request(&req, NULL, ADBREQ_SYNC, 3,
1114         ADB_WRITEREG(id,1), 03,0x38);
1115 }
1116
1117 static void
1118 init_turbomouse(int id)
1119 {
1120         struct adb_request req;
1121
1122         printk(" (TurboMouse 5)");
1123
1124         adb_request(&req, NULL, ADBREQ_SYNC, 1, ADB_FLUSH(id));
1125
1126         adb_request(&req, NULL, ADBREQ_SYNC, 1, ADB_FLUSH(3));
1127
1128         adb_request(&req, NULL, ADBREQ_SYNC, 9,
1129         ADB_WRITEREG(3,2),
1130             0xe7,
1131             0x8c,
1132             0,
1133             0,
1134             0,
1135             0xff,
1136             0xff,
1137             0x94);
1138
1139         adb_request(&req, NULL, ADBREQ_SYNC, 1, ADB_FLUSH(3));
1140
1141         adb_request(&req, NULL, ADBREQ_SYNC, 9,
1142         ADB_WRITEREG(3,2),
1143             0xa5,
1144             0x14,
1145             0,
1146             0,
1147             0x69,
1148             0xff,
1149             0xff,
1150             0x27);
1151 }
1152
1153 static void
1154 init_microspeed(int id)
1155 {
1156         struct adb_request req;
1157
1158         printk(" (Microspeed/MacPoint or compatible)");
1159
1160         adb_request(&req, NULL, ADBREQ_SYNC, 1, ADB_FLUSH(id));
1161
1162         /* This will initialize mice using the Microspeed, MacPoint and
1163            other compatible firmware. Bit 12 enables extended protocol.
1164
1165            Register 1 Listen (4 Bytes)
1166             0 -  3     Button is mouse (set also for double clicking!!!)
1167             4 -  7     Button is locking (affects change speed also)
1168             8 - 11     Button changes speed
1169            12          1 = Extended mouse mode, 0 = normal mouse mode
1170            13 - 15     unused 0
1171            16 - 23     normal speed
1172            24 - 31     changed speed
1173
1174        Register 1 talk holds version and product identification information.
1175        Register 1 Talk (4 Bytes):
1176             0 -  7     Product code
1177             8 - 23     undefined, reserved
1178            24 - 31     Version number
1179
1180        Speed 0 is max. 1 to 255 set speed in increments of 1/256 of max.
1181  */
1182         adb_request(&req, NULL, ADBREQ_SYNC, 5,
1183         ADB_WRITEREG(id,1),
1184             0x20,       /* alt speed = 0x20 (rather slow) */
1185             0x00,       /* norm speed = 0x00 (fastest) */
1186             0x10,       /* extended protocol, no speed change */
1187             0x07);      /* all buttons enabled as mouse buttons, no locking */
1188
1189
1190         adb_request(&req, NULL, ADBREQ_SYNC, 1, ADB_FLUSH(id));
1191 }
1192
1193 static void
1194 init_ms_a3(int id)
1195 {
1196         struct adb_request req;
1197
1198         printk(" (Mouse Systems A3 Mouse, or compatible)");
1199         adb_request(&req, NULL, ADBREQ_SYNC, 3,
1200         ADB_WRITEREG(id, 0x2),
1201             0x00,
1202             0x07);
1203
1204         adb_request(&req, NULL, ADBREQ_SYNC, 1, ADB_FLUSH(id));
1205 }
1206
1207 static int __init adbhid_init(void)
1208 {
1209 #ifndef CONFIG_MAC
1210         if ( (_machine != _MACH_chrp) && (_machine != _MACH_Pmac) )
1211             return 0;
1212 #endif
1213
1214         led_request.complete = 1;
1215
1216         adbhid_probe();
1217
1218         notifier_chain_register(&adb_client_list, &adbhid_adb_notifier);
1219
1220         return 0;
1221 }
1222
1223 static void __exit adbhid_exit(void)
1224 {
1225 }
1226
1227 module_init(adbhid_init);
1228 module_exit(adbhid_exit);