drivers/macintosh/adbhid.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * drivers/macintosh/adbhid.c
   4  *
   5  * ADB HID driver for Power Macintosh computers.
   6  *
   7  * Adapted from drivers/macintosh/mac_keyb.c by Franz Sirl.
   8  * drivers/macintosh/mac_keyb.c was Copyright (C) 1996 Paul Mackerras
   9  * with considerable contributions from Ben Herrenschmidt and others.
  10  *
  11  * Copyright (C) 2000 Franz Sirl.
  12  *
  13  * Adapted to ADB changes and support for more devices by
  14  * Benjamin Herrenschmidt. Adapted from code in MkLinux
  15  * and reworked.
  16  *
  17  * Supported devices:
  18  *
  19  * - Standard 1 button mouse
  20  * - All standard Apple Extended protocol (handler ID 4)
  21  * - mouseman and trackman mice & trackballs
  22  * - PowerBook Trackpad (default setup: enable tapping)
  23  * - MicroSpeed mouse & trackball (needs testing)
  24  * - CH Products Trackball Pro (needs testing)
  25  * - Contour Design (Contour Mouse)
  26  * - Hunter digital (NoHandsMouse)
  27  * - Kensignton TurboMouse 5 (needs testing)
  28  * - Mouse Systems A3 mice and trackballs <aidan@kublai.com>
  29  * - MacAlly 2-buttons mouse (needs testing) <pochini@denise.shiny.it>
  30  *
  31  * To do:
  32  *
  33  * Improve Kensington support.
  34  * Split mouse/kbd
  35  * Move to syfs
  36  */
  37
  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/backlight.h>
  51 #include <asm/pmac_feature.h>
  52 #endif
  53
  54 MODULE_AUTHOR("Franz Sirl <Franz.Sirl-kernel@lauterbach.com>");
  55
  56 static int restore_capslock_events;
  57 module_param(restore_capslock_events, int, 0644);
  58 MODULE_PARM_DESC(restore_capslock_events,
  59         "Produce keypress events for capslock on both keyup and keydown.");
  60
  61 #define KEYB_KEYREG     0       /* register # for key up/down data */
  62 #define KEYB_LEDREG     2       /* register # for leds on ADB keyboard */
  63 #define MOUSE_DATAREG   0       /* reg# for movement/button codes from mouse */
  64
  65 static int adb_message_handler(struct notifier_block *, unsigned long, void *);
  66 static struct notifier_block adbhid_adb_notifier = {
  67         .notifier_call  = adb_message_handler,
  68 };
  69
  70 /* Some special keys */
  71 #define ADB_KEY_DEL             0x33
  72 #define ADB_KEY_CMD             0x37
  73 #define ADB_KEY_CAPSLOCK        0x39
  74 #define ADB_KEY_FN              0x3f
  75 #define ADB_KEY_FWDEL           0x75
  76 #define ADB_KEY_POWER_OLD       0x7e
  77 #define ADB_KEY_POWER           0x7f
  78
  79 static const u16 adb_to_linux_keycodes[128] = {
  80         /* 0x00 */ KEY_A,               /*  30 */
  81         /* 0x01 */ KEY_S,               /*  31 */
  82         /* 0x02 */ KEY_D,               /*  32 */
  83         /* 0x03 */ KEY_F,               /*  33 */
  84         /* 0x04 */ KEY_H,               /*  35 */
  85         /* 0x05 */ KEY_G,               /*  34 */
  86         /* 0x06 */ KEY_Z,               /*  44 */
  87         /* 0x07 */ KEY_X,               /*  45 */
  88         /* 0x08 */ KEY_C,               /*  46 */
  89         /* 0x09 */ KEY_V,               /*  47 */
  90         /* 0x0a */ KEY_102ND,           /*  86 */
  91         /* 0x0b */ KEY_B,               /*  48 */
  92         /* 0x0c */ KEY_Q,               /*  16 */
  93         /* 0x0d */ KEY_W,               /*  17 */
  94         /* 0x0e */ KEY_E,               /*  18 */
  95         /* 0x0f */ KEY_R,               /*  19 */
  96         /* 0x10 */ KEY_Y,               /*  21 */
  97         /* 0x11 */ KEY_T,               /*  20 */
  98         /* 0x12 */ KEY_1,               /*   2 */
  99         /* 0x13 */ KEY_2,               /*   3 */
 100         /* 0x14 */ KEY_3,               /*   4 */
 101         /* 0x15 */ KEY_4,               /*   5 */
 102         /* 0x16 */ KEY_6,               /*   7 */
 103         /* 0x17 */ KEY_5,               /*   6 */
 104         /* 0x18 */ KEY_EQUAL,           /*  13 */
 105         /* 0x19 */ KEY_9,               /*  10 */
 106         /* 0x1a */ KEY_7,               /*   8 */
 107         /* 0x1b */ KEY_MINUS,           /*  12 */
 108         /* 0x1c */ KEY_8,               /*   9 */
 109         /* 0x1d */ KEY_0,               /*  11 */
 110         /* 0x1e */ KEY_RIGHTBRACE,      /*  27 */
 111         /* 0x1f */ KEY_O,               /*  24 */
 112         /* 0x20 */ KEY_U,               /*  22 */
 113         /* 0x21 */ KEY_LEFTBRACE,       /*  26 */
 114         /* 0x22 */ KEY_I,               /*  23 */
 115         /* 0x23 */ KEY_P,               /*  25 */
 116         /* 0x24 */ KEY_ENTER,           /*  28 */
 117         /* 0x25 */ KEY_L,               /*  38 */
 118         /* 0x26 */ KEY_J,               /*  36 */
 119         /* 0x27 */ KEY_APOSTROPHE,      /*  40 */
 120         /* 0x28 */ KEY_K,               /*  37 */
 121         /* 0x29 */ KEY_SEMICOLON,       /*  39 */
 122         /* 0x2a */ KEY_BACKSLASH,       /*  43 */
 123         /* 0x2b */ KEY_COMMA,           /*  51 */
 124         /* 0x2c */ KEY_SLASH,           /*  53 */
 125         /* 0x2d */ KEY_N,               /*  49 */
 126         /* 0x2e */ KEY_M,               /*  50 */
 127         /* 0x2f */ KEY_DOT,             /*  52 */
 128         /* 0x30 */ KEY_TAB,             /*  15 */
 129         /* 0x31 */ KEY_SPACE,           /*  57 */
 130         /* 0x32 */ KEY_GRAVE,           /*  41 */
 131         /* 0x33 */ KEY_BACKSPACE,       /*  14 */
 132         /* 0x34 */ KEY_KPENTER,         /*  96 */
 133         /* 0x35 */ KEY_ESC,             /*   1 */
 134         /* 0x36 */ KEY_LEFTCTRL,        /*  29 */
 135         /* 0x37 */ KEY_LEFTMETA,        /* 125 */
 136         /* 0x38 */ KEY_LEFTSHIFT,       /*  42 */
 137         /* 0x39 */ KEY_CAPSLOCK,        /*  58 */
 138         /* 0x3a */ KEY_LEFTALT,         /*  56 */
 139         /* 0x3b */ KEY_LEFT,            /* 105 */
 140         /* 0x3c */ KEY_RIGHT,           /* 106 */
 141         /* 0x3d */ KEY_DOWN,            /* 108 */
 142         /* 0x3e */ KEY_UP,              /* 103 */
 143         /* 0x3f */ KEY_FN,              /* 0x1d0 */
 144         /* 0x40 */ 0,
 145         /* 0x41 */ KEY_KPDOT,           /*  83 */
 146         /* 0x42 */ 0,
 147         /* 0x43 */ KEY_KPASTERISK,      /*  55 */
 148         /* 0x44 */ 0,
 149         /* 0x45 */ KEY_KPPLUS,          /*  78 */
 150         /* 0x46 */ 0,
 151         /* 0x47 */ KEY_NUMLOCK,         /*  69 */
 152         /* 0x48 */ 0,
 153         /* 0x49 */ 0,
 154         /* 0x4a */ 0,
 155         /* 0x4b */ KEY_KPSLASH,         /*  98 */
 156         /* 0x4c */ KEY_KPENTER,         /*  96 */
 157         /* 0x4d */ 0,
 158         /* 0x4e */ KEY_KPMINUS,         /*  74 */
 159         /* 0x4f */ 0,
 160         /* 0x50 */ 0,
 161         /* 0x51 */ KEY_KPEQUAL,         /* 117 */
 162         /* 0x52 */ KEY_KP0,             /*  82 */
 163         /* 0x53 */ KEY_KP1,             /*  79 */
 164         /* 0x54 */ KEY_KP2,             /*  80 */
 165         /* 0x55 */ KEY_KP3,             /*  81 */
 166         /* 0x56 */ KEY_KP4,             /*  75 */
 167         /* 0x57 */ KEY_KP5,             /*  76 */
 168         /* 0x58 */ KEY_KP6,             /*  77 */
 169         /* 0x59 */ KEY_KP7,             /*  71 */
 170         /* 0x5a */ 0,
 171         /* 0x5b */ KEY_KP8,             /*  72 */
 172         /* 0x5c */ KEY_KP9,             /*  73 */
 173         /* 0x5d */ KEY_YEN,             /* 124 */
 174         /* 0x5e */ KEY_RO,              /*  89 */
 175         /* 0x5f */ KEY_KPCOMMA,         /* 121 */
 176         /* 0x60 */ KEY_F5,              /*  63 */
 177         /* 0x61 */ KEY_F6,              /*  64 */
 178         /* 0x62 */ KEY_F7,              /*  65 */
 179         /* 0x63 */ KEY_F3,              /*  61 */
 180         /* 0x64 */ KEY_F8,              /*  66 */
 181         /* 0x65 */ KEY_F9,              /*  67 */
 182         /* 0x66 */ KEY_HANJA,           /* 123 */
 183         /* 0x67 */ KEY_F11,             /*  87 */
 184         /* 0x68 */ KEY_HANGEUL,         /* 122 */
 185         /* 0x69 */ KEY_SYSRQ,           /*  99 */
 186         /* 0x6a */ 0,
 187         /* 0x6b */ KEY_SCROLLLOCK,      /*  70 */
 188         /* 0x6c */ 0,
 189         /* 0x6d */ KEY_F10,             /*  68 */
 190         /* 0x6e */ KEY_COMPOSE,         /* 127 */
 191         /* 0x6f */ KEY_F12,             /*  88 */
 192         /* 0x70 */ 0,
 193         /* 0x71 */ KEY_PAUSE,           /* 119 */
 194         /* 0x72 */ KEY_INSERT,          /* 110 */
 195         /* 0x73 */ KEY_HOME,            /* 102 */
 196         /* 0x74 */ KEY_PAGEUP,          /* 104 */
 197         /* 0x75 */ KEY_DELETE,          /* 111 */
 198         /* 0x76 */ KEY_F4,              /*  62 */
 199         /* 0x77 */ KEY_END,             /* 107 */
 200         /* 0x78 */ KEY_F2,              /*  60 */
 201         /* 0x79 */ KEY_PAGEDOWN,        /* 109 */
 202         /* 0x7a */ KEY_F1,              /*  59 */
 203         /* 0x7b */ KEY_RIGHTSHIFT,      /*  54 */
 204         /* 0x7c */ KEY_RIGHTALT,        /* 100 */
 205         /* 0x7d */ KEY_RIGHTCTRL,       /*  97 */
 206         /* 0x7e */ KEY_RIGHTMETA,       /* 126 */
 207         /* 0x7f */ KEY_POWER,           /* 116 */
 208 };
 209
 210 struct adbhid {
 211         struct input_dev *input;
 212         int id;
 213         int default_id;
 214         int original_handler_id;
 215         int current_handler_id;
 216         int mouse_kind;
 217         u16 *keycode;
 218         char name[64];
 219         char phys[32];
 220         int flags;
 221 };
 222
 223 #define FLAG_FN_KEY_PRESSED             0x00000001
 224 #define FLAG_POWER_FROM_FN              0x00000002
 225 #define FLAG_EMU_FWDEL_DOWN             0x00000004
 226 #define FLAG_CAPSLOCK_TRANSLATE         0x00000008
 227 #define FLAG_CAPSLOCK_DOWN              0x00000010
 228 #define FLAG_CAPSLOCK_IGNORE_NEXT       0x00000020
 229 #define FLAG_POWER_KEY_PRESSED          0x00000040
 230
 231 static struct adbhid *adbhid[16];
 232
 233 static void adbhid_probe(void);
 234
 235 static void adbhid_input_keycode(int, int, int);
 236
 237 static void init_trackpad(int id);
 238 static void init_trackball(int id);
 239 static void init_turbomouse(int id);
 240 static void init_microspeed(int id);
 241 static void init_ms_a3(int id);
 242
 243 static struct adb_ids keyboard_ids;
 244 static struct adb_ids mouse_ids;
 245 static struct adb_ids buttons_ids;
 246
 247 /* Kind of keyboard, see Apple technote 1152  */
 248 #define ADB_KEYBOARD_UNKNOWN    0
 249 #define ADB_KEYBOARD_ANSI       0x0100
 250 #define ADB_KEYBOARD_ISO        0x0200
 251 #define ADB_KEYBOARD_JIS        0x0300
 252
 253 /* Kind of mouse  */
 254 #define ADBMOUSE_STANDARD_100   0       /* Standard 100cpi mouse (handler 1) */
 255 #define ADBMOUSE_STANDARD_200   1       /* Standard 200cpi mouse (handler 2) */
 256 #define ADBMOUSE_EXTENDED       2       /* Apple Extended mouse (handler 4) */
 257 #define ADBMOUSE_TRACKBALL      3       /* TrackBall (handler 4) */
 258 #define ADBMOUSE_TRACKPAD       4       /* Apple's PowerBook trackpad (handler 4) */
 259 #define ADBMOUSE_TURBOMOUSE5    5       /* Turbomouse 5 (previously req. mousehack) */
 260 #define ADBMOUSE_MICROSPEED     6       /* Microspeed mouse (&trackball ?), MacPoint */
 261 #define ADBMOUSE_TRACKBALLPRO   7       /* Trackball Pro (special buttons) */
 262 #define ADBMOUSE_MS_A3          8       /* Mouse systems A3 trackball (handler 3) */
 263 #define ADBMOUSE_MACALLY2       9       /* MacAlly 2-button mouse */
 264
 265 static void
 266 adbhid_keyboard_input(unsigned char *data, int nb, int apoll)
 267 {
 268         int id = (data[0] >> 4) & 0x0f;
 269
 270         if (!adbhid[id]) {
 271                 pr_err("ADB HID on ID %d not yet registered, packet %#02x, %#02x, %#02x, %#02x\n",
 272                        id, data[0], data[1], data[2], data[3]);
 273                 return;
 274         }
 275
 276         /* first check this is from register 0 */
 277         if (nb != 3 || (data[0] & 3) != KEYB_KEYREG)
 278                 return;         /* ignore it */
 279         adbhid_input_keycode(id, data[1], 0);
 280         if (!(data[2] == 0xff || (data[2] == 0x7f && data[1] == 0x7f)))
 281                 adbhid_input_keycode(id, data[2], 0);
 282 }
 283
 284 static void
 285 adbhid_input_keycode(int id, int scancode, int repeat)
 286 {
 287         struct adbhid *ahid = adbhid[id];
 288         int keycode, up_flag, key;
 289
 290         keycode = scancode & 0x7f;
 291         up_flag = scancode & 0x80;
 292
 293         if (restore_capslock_events) {
 294                 if (keycode == ADB_KEY_CAPSLOCK && !up_flag) {
 295                         /* Key pressed, turning on the CapsLock LED.
 296                          * The next 0xff will be interpreted as a release. */
 297                         if (ahid->flags & FLAG_CAPSLOCK_IGNORE_NEXT) {
 298                                 /* Throw away this key event if it happens
 299                                  * just after resume. */
 300                                 ahid->flags &= ~FLAG_CAPSLOCK_IGNORE_NEXT;
 301                                 return;
 302                         } else {
 303                                 ahid->flags |= FLAG_CAPSLOCK_TRANSLATE
 304                                         | FLAG_CAPSLOCK_DOWN;
 305                         }
 306                 } else if (scancode == 0xff &&
 307                            !(ahid->flags & FLAG_POWER_KEY_PRESSED)) {
 308                         /* Scancode 0xff usually signifies that the capslock
 309                          * key was either pressed or released, or that the
 310                          * power button was released. */
 311                         if (ahid->flags & FLAG_CAPSLOCK_TRANSLATE) {
 312                                 keycode = ADB_KEY_CAPSLOCK;
 313                                 if (ahid->flags & FLAG_CAPSLOCK_DOWN) {
 314                                         /* Key released */
 315                                         up_flag = 1;
 316                                         ahid->flags &= ~FLAG_CAPSLOCK_DOWN;
 317                                 } else {
 318                                         /* Key pressed */
 319                                         up_flag = 0;
 320                                         ahid->flags &= ~FLAG_CAPSLOCK_TRANSLATE;
 321                                 }
 322                         } else {
 323                                 pr_info("Spurious caps lock event (scancode 0xff).\n");
 324                         }
 325                 }
 326         }
 327
 328         switch (keycode) {
 329         case ADB_KEY_CAPSLOCK:
 330                 if (!restore_capslock_events) {
 331                         /* Generate down/up events for CapsLock every time. */
 332                         input_report_key(ahid->input, KEY_CAPSLOCK, 1);
 333                         input_sync(ahid->input);
 334                         input_report_key(ahid->input, KEY_CAPSLOCK, 0);
 335                         input_sync(ahid->input);
 336                         return;
 337                 }
 338                 break;
 339 #ifdef CONFIG_PPC_PMAC
 340         case ADB_KEY_POWER_OLD: /* Power key on PBook 3400 needs remapping */
 341                 switch(pmac_call_feature(PMAC_FTR_GET_MB_INFO,
 342                         NULL, PMAC_MB_INFO_MODEL, 0)) {
 343                 case PMAC_TYPE_COMET:
 344                 case PMAC_TYPE_HOOPER:
 345                 case PMAC_TYPE_KANGA:
 346                         keycode = ADB_KEY_POWER;
 347                 }
 348                 break;
 349         case ADB_KEY_POWER:
 350                 /* Keep track of the power key state */
 351                 if (up_flag)
 352                         ahid->flags &= ~FLAG_POWER_KEY_PRESSED;
 353                 else
 354                         ahid->flags |= FLAG_POWER_KEY_PRESSED;
 355
 356                 /* Fn + Command will produce a bogus "power" keycode */
 357                 if (ahid->flags & FLAG_FN_KEY_PRESSED) {
 358                         keycode = ADB_KEY_CMD;
 359                         if (up_flag)
 360                                 ahid->flags &= ~FLAG_POWER_FROM_FN;
 361                         else
 362                                 ahid->flags |= FLAG_POWER_FROM_FN;
 363                 } else if (ahid->flags & FLAG_POWER_FROM_FN) {
 364                         keycode = ADB_KEY_CMD;
 365                         ahid->flags &= ~FLAG_POWER_FROM_FN;
 366                 }
 367                 break;
 368         case ADB_KEY_FN:
 369                 /* Keep track of the Fn key state */
 370                 if (up_flag) {
 371                         ahid->flags &= ~FLAG_FN_KEY_PRESSED;
 372                         /* Emulate Fn+delete = forward delete */
 373                         if (ahid->flags & FLAG_EMU_FWDEL_DOWN) {
 374                                 ahid->flags &= ~FLAG_EMU_FWDEL_DOWN;
 375                                 keycode = ADB_KEY_FWDEL;
 376                                 break;
 377                         }
 378                 } else
 379                         ahid->flags |= FLAG_FN_KEY_PRESSED;
 380                 break;
 381         case ADB_KEY_DEL:
 382                 /* Emulate Fn+delete = forward delete */
 383                 if (ahid->flags & FLAG_FN_KEY_PRESSED) {
 384                         keycode = ADB_KEY_FWDEL;
 385                         if (up_flag)
 386                                 ahid->flags &= ~FLAG_EMU_FWDEL_DOWN;
 387                         else
 388                                 ahid->flags |= FLAG_EMU_FWDEL_DOWN;
 389                 }
 390                 break;
 391 #endif /* CONFIG_PPC_PMAC */
 392         }
 393
 394         key = adbhid[id]->keycode[keycode];
 395         if (key) {
 396                 input_report_key(adbhid[id]->input, key, !up_flag);
 397                 input_sync(adbhid[id]->input);
 398         } else
 399                 pr_info("Unhandled ADB key (scancode %#02x) %s.\n", keycode,
 400                         up_flag ? "released" : "pressed");
 401
 402 }
 403
 404 static void
 405 adbhid_mouse_input(unsigned char *data, int nb, int autopoll)
 406 {
 407         int id = (data[0] >> 4) & 0x0f;
 408
 409         if (!adbhid[id]) {
 410                 pr_err("ADB HID on ID %d not yet registered\n", id);
 411                 return;
 412         }
 413
 414   /*
 415     Handler 1 -- 100cpi original Apple mouse protocol.
 416     Handler 2 -- 200cpi original Apple mouse protocol.
 417
 418     For Apple's standard one-button mouse protocol the data array will
 419     contain the following values:
 420
 421                 BITS    COMMENTS
 422     data[0] = dddd 1100 ADB command: Talk, register 0, for device dddd.
 423     data[1] = bxxx xxxx First button and x-axis motion.
 424     data[2] = byyy yyyy Second button and y-axis motion.
 425
 426     Handler 4 -- Apple Extended mouse protocol.
 427
 428     For Apple's 3-button mouse protocol the data array will contain the
 429     following values:
 430
 431                 BITS    COMMENTS
 432     data[0] = dddd 1100 ADB command: Talk, register 0, for device dddd.
 433     data[1] = bxxx xxxx Left button and x-axis motion.
 434     data[2] = byyy yyyy Second button and y-axis motion.
 435     data[3] = byyy bxxx Third button and fourth button.  Y is additional
 436               high bits of y-axis motion.  XY is additional
 437               high bits of x-axis motion.
 438
 439     MacAlly 2-button mouse protocol.
 440
 441     For MacAlly 2-button mouse protocol the data array will contain the
 442     following values:
 443
 444                 BITS    COMMENTS
 445     data[0] = dddd 1100 ADB command: Talk, register 0, for device dddd.
 446     data[1] = bxxx xxxx Left button and x-axis motion.
 447     data[2] = byyy yyyy Right button and y-axis motion.
 448     data[3] = ???? ???? unknown
 449     data[4] = ???? ???? unknown
 450
 451   */
 452
 453         /* If it's a trackpad, we alias the second button to the first.
 454            NOTE: Apple sends an ADB flush command to the trackpad when
 455                  the first (the real) button is released. We could do
 456                  this here using async flush requests.
 457         */
 458         switch (adbhid[id]->mouse_kind)
 459         {
 460             case ADBMOUSE_TRACKPAD:
 461                 data[1] = (data[1] & 0x7f) | ((data[1] & data[2]) & 0x80);
 462                 data[2] = data[2] | 0x80;
 463                 break;
 464             case ADBMOUSE_MICROSPEED:
 465                 data[1] = (data[1] & 0x7f) | ((data[3] & 0x01) << 7);
 466                 data[2] = (data[2] & 0x7f) | ((data[3] & 0x02) << 6);
 467                 data[3] = (data[3] & 0x77) | ((data[3] & 0x04) << 5)
 468                         | (data[3] & 0x08);
 469                 break;
 470             case ADBMOUSE_TRACKBALLPRO:
 471                 data[1] = (data[1] & 0x7f) | (((data[3] & 0x04) << 5)
 472                         & ((data[3] & 0x08) << 4));
 473                 data[2] = (data[2] & 0x7f) | ((data[3] & 0x01) << 7);
 474                 data[3] = (data[3] & 0x77) | ((data[3] & 0x02) << 6);
 475                 break;
 476             case ADBMOUSE_MS_A3:
 477                 data[1] = (data[1] & 0x7f) | ((data[3] & 0x01) << 7);
 478                 data[2] = (data[2] & 0x7f) | ((data[3] & 0x02) << 6);
 479                 data[3] = ((data[3] & 0x04) << 5);
 480                 break;
 481             case ADBMOUSE_MACALLY2:
 482                 data[3] = (data[2] & 0x80) ? 0x80 : 0x00;
 483                 data[2] |= 0x80;  /* Right button is mapped as button 3 */
 484                 nb=4;
 485                 break;
 486         }
 487
 488         input_report_key(adbhid[id]->input, BTN_LEFT,   !((data[1] >> 7) & 1));
 489         input_report_key(adbhid[id]->input, BTN_MIDDLE, !((data[2] >> 7) & 1));
 490
 491         if (nb >= 4 && adbhid[id]->mouse_kind != ADBMOUSE_TRACKPAD)
 492                 input_report_key(adbhid[id]->input, BTN_RIGHT,  !((data[3] >> 7) & 1));
 493
 494         input_report_rel(adbhid[id]->input, REL_X,
 495                          ((data[2]&0x7f) < 64 ? (data[2]&0x7f) : (data[2]&0x7f)-128 ));
 496         input_report_rel(adbhid[id]->input, REL_Y,
 497                          ((data[1]&0x7f) < 64 ? (data[1]&0x7f) : (data[1]&0x7f)-128 ));
 498
 499         input_sync(adbhid[id]->input);
 500 }
 501
 502 static void
 503 adbhid_buttons_input(unsigned char *data, int nb, int autopoll)
 504 {
 505         int id = (data[0] >> 4) & 0x0f;
 506
 507         if (!adbhid[id]) {
 508                 pr_err("ADB HID on ID %d not yet registered\n", id);
 509                 return;
 510         }
 511
 512         switch (adbhid[id]->original_handler_id) {
 513         default:
 514         case 0x02: /* Adjustable keyboard button device */
 515           {
 516                 int down = (data[1] == (data[1] & 0xf));
 517
 518                 switch (data[1] & 0x0f) {
 519                 case 0x0:       /* microphone */
 520                         input_report_key(adbhid[id]->input, KEY_SOUND, down);
 521                         break;
 522
 523                 case 0x1:       /* mute */
 524                         input_report_key(adbhid[id]->input, KEY_MUTE, down);
 525                         break;
 526
 527                 case 0x2:       /* volume decrease */
 528                         input_report_key(adbhid[id]->input, KEY_VOLUMEDOWN, down);
 529                         break;
 530
 531                 case 0x3:       /* volume increase */
 532                         input_report_key(adbhid[id]->input, KEY_VOLUMEUP, down);
 533                         break;
 534
 535                 default:
 536                         pr_info("Unhandled ADB_MISC event %02x, %02x, %02x, %02x\n",
 537                                 data[0], data[1], data[2], data[3]);
 538                         break;
 539                 }
 540           }
 541           break;
 542
 543         case 0x1f: /* Powerbook button device */
 544           {
 545                 int down = (data[1] == (data[1] & 0xf));
 546
 547                 /*
 548                  * XXX: Where is the contrast control for the passive?
 549                  *  -- Cort
 550                  */
 551
 552                 switch (data[1] & 0x0f) {
 553                 case 0x8:       /* mute */
 554                         input_report_key(adbhid[id]->input, KEY_MUTE, down);
 555                         break;
 556
 557                 case 0x7:       /* volume decrease */
 558                         input_report_key(adbhid[id]->input, KEY_VOLUMEDOWN, down);
 559                         break;
 560
 561                 case 0x6:       /* volume increase */
 562                         input_report_key(adbhid[id]->input, KEY_VOLUMEUP, down);
 563                         break;
 564
 565                 case 0xb:       /* eject */
 566                         input_report_key(adbhid[id]->input, KEY_EJECTCD, down);
 567                         break;
 568
 569                 case 0xa:       /* brightness decrease */
 570 #ifdef CONFIG_PMAC_BACKLIGHT
 571                         if (down)
 572                                 pmac_backlight_key_down();
 573 #endif
 574                         input_report_key(adbhid[id]->input, KEY_BRIGHTNESSDOWN, down);
 575                         break;
 576
 577                 case 0x9:       /* brightness increase */
 578 #ifdef CONFIG_PMAC_BACKLIGHT
 579                         if (down)
 580                                 pmac_backlight_key_up();
 581 #endif
 582                         input_report_key(adbhid[id]->input, KEY_BRIGHTNESSUP, down);
 583                         break;
 584
 585                 case 0xc:       /* videomode switch */
 586                         input_report_key(adbhid[id]->input, KEY_SWITCHVIDEOMODE, down);
 587                         break;
 588
 589                 case 0xd:       /* keyboard illumination toggle */
 590                         input_report_key(adbhid[id]->input, KEY_KBDILLUMTOGGLE, down);
 591                         break;
 592
 593                 case 0xe:       /* keyboard illumination decrease */
 594                         input_report_key(adbhid[id]->input, KEY_KBDILLUMDOWN, down);
 595                         break;
 596
 597                 case 0xf:
 598                         switch (data[1]) {
 599                         case 0x8f:
 600                         case 0x0f:
 601                                 /* keyboard illumination increase */
 602                                 input_report_key(adbhid[id]->input, KEY_KBDILLUMUP, down);
 603                                 break;
 604
 605                         case 0x7f:
 606                         case 0xff:
 607                                 /* keypad overlay toogle */
 608                                 break;
 609
 610                         default:
 611                                 pr_info("Unhandled ADB_MISC event %02x, %02x, %02x, %02x\n",
 612                                         data[0], data[1], data[2], data[3]);
 613                                 break;
 614                         }
 615                         break;
 616                 default:
 617                         pr_info("Unhandled ADB_MISC event %02x, %02x, %02x, %02x\n",
 618                                 data[0], data[1], data[2], data[3]);
 619                         break;
 620                 }
 621           }
 622           break;
 623         }
 624
 625         input_sync(adbhid[id]->input);
 626 }
 627
 628 static struct adb_request led_request;
 629 static int leds_pending[16];
 630 static int leds_req_pending;
 631 static int pending_devs[16];
 632 static int pending_led_start;
 633 static int pending_led_end;
 634 static DEFINE_SPINLOCK(leds_lock);
 635
 636 static void leds_done(struct adb_request *req)
 637 {
 638         int leds = 0, device = 0, pending = 0;
 639         unsigned long flags;
 640
 641         spin_lock_irqsave(&leds_lock, flags);
 642
 643         if (pending_led_start != pending_led_end) {
 644                 device = pending_devs[pending_led_start];
 645                 leds = leds_pending[device] & 0xff;
 646                 leds_pending[device] = 0;
 647                 pending_led_start++;
 648                 pending_led_start = (pending_led_start < 16) ? pending_led_start : 0;
 649                 pending = leds_req_pending;
 650         } else
 651                 leds_req_pending = 0;
 652         spin_unlock_irqrestore(&leds_lock, flags);
 653         if (pending)
 654                 adb_request(&led_request, leds_done, 0, 3,
 655                             ADB_WRITEREG(device, KEYB_LEDREG), 0xff, ~leds);
 656 }
 657
 658 static void real_leds(unsigned char leds, int device)
 659 {
 660         unsigned long flags;
 661
 662         spin_lock_irqsave(&leds_lock, flags);
 663         if (!leds_req_pending) {
 664                 leds_req_pending = 1;
 665                 spin_unlock_irqrestore(&leds_lock, flags);
 666                 adb_request(&led_request, leds_done, 0, 3,
 667                             ADB_WRITEREG(device, KEYB_LEDREG), 0xff, ~leds);
 668                 return;
 669         } else {
 670                 if (!(leds_pending[device] & 0x100)) {
 671                         pending_devs[pending_led_end] = device;
 672                         pending_led_end++;
 673                         pending_led_end = (pending_led_end < 16) ? pending_led_end : 0;
 674                 }
 675                 leds_pending[device] = leds | 0x100;
 676         }
 677         spin_unlock_irqrestore(&leds_lock, flags);
 678 }
 679
 680 /*
 681  * Event callback from the input module. Events that change the state of
 682  * the hardware are processed here.
 683  */
 684 static int adbhid_kbd_event(struct input_dev *dev, unsigned int type, unsigned int code, int value)
 685 {
 686         struct adbhid *adbhid = input_get_drvdata(dev);
 687         unsigned char leds;
 688
 689         switch (type) {
 690         case EV_LED:
 691                 leds =  (test_bit(LED_SCROLLL, dev->led) ? 4 : 0) |
 692                         (test_bit(LED_NUML,    dev->led) ? 1 : 0) |
 693                         (test_bit(LED_CAPSL,   dev->led) ? 2 : 0);
 694                 real_leds(leds, adbhid->id);
 695                 return 0;
 696         }
 697
 698         return -1;
 699 }
 700
 701 static void
 702 adbhid_kbd_capslock_remember(void)
 703 {
 704         struct adbhid *ahid;
 705         int i;
 706
 707         for (i = 1; i < 16; i++) {
 708                 ahid = adbhid[i];
 709
 710                 if (ahid && ahid->id == ADB_KEYBOARD)
 711                         if (ahid->flags & FLAG_CAPSLOCK_TRANSLATE)
 712                                 ahid->flags |= FLAG_CAPSLOCK_IGNORE_NEXT;
 713         }
 714 }
 715
 716 static int
 717 adb_message_handler(struct notifier_block *this, unsigned long code, void *x)
 718 {
 719         switch (code) {
 720         case ADB_MSG_PRE_RESET:
 721         case ADB_MSG_POWERDOWN:
 722                 /* Stop the repeat timer. Autopoll is already off at this point */
 723                 {
 724                         int i;
 725                         for (i = 1; i < 16; i++) {
 726                                 if (adbhid[i])
 727                                         del_timer_sync(&adbhid[i]->input->timer);
 728                         }
 729                 }
 730
 731                 /* Stop pending led requests */
 732                 while (leds_req_pending)
 733                         adb_poll();
 734
 735                 /* After resume, and if the capslock LED is on, the PMU will
 736                  * send a "capslock down" key event. This confuses the
 737                  * restore_capslock_events logic. Remember if the capslock
 738                  * LED was on before suspend so the unwanted key event can
 739                  * be ignored after resume. */
 740                 if (restore_capslock_events)
 741                         adbhid_kbd_capslock_remember();
 742
 743                 break;
 744
 745         case ADB_MSG_POST_RESET:
 746                 adbhid_probe();
 747                 break;
 748         }
 749         return NOTIFY_DONE;
 750 }
 751
 752 static int
 753 adbhid_input_register(int id, int default_id, int original_handler_id,
 754                       int current_handler_id, int mouse_kind)
 755 {
 756         struct adbhid *hid;
 757         struct input_dev *input_dev;
 758         int err;
 759         int i;
 760         char *keyboard_type;
 761
 762         if (adbhid[id]) {
 763                 pr_err("Trying to reregister ADB HID on ID %d\n", id);
 764                 return -EEXIST;
 765         }
 766
 767         adbhid[id] = hid = kzalloc(sizeof(struct adbhid), GFP_KERNEL);
 768         input_dev = input_allocate_device();
 769         if (!hid || !input_dev) {
 770                 err = -ENOMEM;
 771                 goto fail;
 772         }
 773
 774         sprintf(hid->phys, "adb%d:%d.%02x/input", id, default_id, original_handler_id);
 775
 776         hid->input = input_dev;
 777         hid->id = default_id;
 778         hid->original_handler_id = original_handler_id;
 779         hid->current_handler_id = current_handler_id;
 780         hid->mouse_kind = mouse_kind;
 781         hid->flags = 0;
 782         input_set_drvdata(input_dev, hid);
 783         input_dev->name = hid->name;
 784         input_dev->phys = hid->phys;
 785         input_dev->id.bustype = BUS_ADB;
 786         input_dev->id.vendor = 0x0001;
 787         input_dev->id.product = (id << 12) | (default_id << 8) | original_handler_id;
 788         input_dev->id.version = 0x0100;
 789
 790         switch (default_id) {
 791         case ADB_KEYBOARD:
 792                 hid->keycode = kmemdup(adb_to_linux_keycodes,
 793                                        sizeof(adb_to_linux_keycodes), GFP_KERNEL);
 794                 if (!hid->keycode) {
 795                         err = -ENOMEM;
 796                         goto fail;
 797                 }
 798
 799                 sprintf(hid->name, "ADB keyboard");
 800
 801                 switch (original_handler_id) {
 802                 default:
 803                         keyboard_type = "<unknown>";
 804                         input_dev->id.version = ADB_KEYBOARD_UNKNOWN;
 805                         break;
 806
 807                 case 0x01: case 0x02: case 0x03: case 0x06: case 0x08:
 808                 case 0x0C: case 0x10: case 0x18: case 0x1B: case 0x1C:
 809                 case 0xC0: case 0xC3: case 0xC6:
 810                         keyboard_type = "ANSI";
 811                         input_dev->id.version = ADB_KEYBOARD_ANSI;
 812                         break;
 813
 814                 case 0x04: case 0x05: case 0x07: case 0x09: case 0x0D:
 815                 case 0x11: case 0x14: case 0x19: case 0x1D: case 0xC1:
 816                 case 0xC4: case 0xC7:
 817                         keyboard_type = "ISO, swapping keys";
 818                         input_dev->id.version = ADB_KEYBOARD_ISO;
 819                         swap(hid->keycode[10], hid->keycode[50]);
 820                         break;
 821
 822                 case 0x12: case 0x15: case 0x16: case 0x17: case 0x1A:
 823                 case 0x1E: case 0xC2: case 0xC5: case 0xC8: case 0xC9:
 824                         keyboard_type = "JIS";
 825                         input_dev->id.version = ADB_KEYBOARD_JIS;
 826                         break;
 827                 }
 828                 pr_info("Detected ADB keyboard, type %s.\n", keyboard_type);
 829
 830                 for (i = 0; i < 128; i++)
 831                         if (hid->keycode[i])
 832                                 set_bit(hid->keycode[i], input_dev->keybit);
 833
 834                 input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_LED) |
 835                         BIT_MASK(EV_REP);
 836                 input_dev->ledbit[0] = BIT_MASK(LED_SCROLLL) |
 837                         BIT_MASK(LED_CAPSL) | BIT_MASK(LED_NUML);
 838                 input_dev->event = adbhid_kbd_event;
 839                 input_dev->keycodemax = KEY_FN;
 840                 input_dev->keycodesize = sizeof(hid->keycode[0]);
 841                 break;
 842
 843         case ADB_MOUSE:
 844                 sprintf(hid->name, "ADB mouse");
 845
 846                 input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL);
 847                 input_dev->keybit[BIT_WORD(BTN_MOUSE)] = BIT_MASK(BTN_LEFT) |
 848                         BIT_MASK(BTN_MIDDLE) | BIT_MASK(BTN_RIGHT);
 849                 input_dev->relbit[0] = BIT_MASK(REL_X) | BIT_MASK(REL_Y);
 850                 break;
 851
 852         case ADB_MISC:
 853                 switch (original_handler_id) {
 854                 case 0x02: /* Adjustable keyboard button device */
 855                         sprintf(hid->name, "ADB adjustable keyboard buttons");
 856                         input_dev->evbit[0] = BIT_MASK(EV_KEY) |
 857                                 BIT_MASK(EV_REP);
 858                         set_bit(KEY_SOUND, input_dev->keybit);
 859                         set_bit(KEY_MUTE, input_dev->keybit);
 860                         set_bit(KEY_VOLUMEUP, input_dev->keybit);
 861                         set_bit(KEY_VOLUMEDOWN, input_dev->keybit);
 862                         break;
 863                 case 0x1f: /* Powerbook button device */
 864                         sprintf(hid->name, "ADB Powerbook buttons");
 865                         input_dev->evbit[0] = BIT_MASK(EV_KEY) |
 866                                 BIT_MASK(EV_REP);
 867                         set_bit(KEY_MUTE, input_dev->keybit);
 868                         set_bit(KEY_VOLUMEUP, input_dev->keybit);
 869                         set_bit(KEY_VOLUMEDOWN, input_dev->keybit);
 870                         set_bit(KEY_BRIGHTNESSUP, input_dev->keybit);
 871                         set_bit(KEY_BRIGHTNESSDOWN, input_dev->keybit);
 872                         set_bit(KEY_EJECTCD, input_dev->keybit);
 873                         set_bit(KEY_SWITCHVIDEOMODE, input_dev->keybit);
 874                         set_bit(KEY_KBDILLUMTOGGLE, input_dev->keybit);
 875                         set_bit(KEY_KBDILLUMDOWN, input_dev->keybit);
 876                         set_bit(KEY_KBDILLUMUP, input_dev->keybit);
 877                         break;
 878                 }
 879                 if (hid->name[0])
 880                         break;
 881                 fallthrough;
 882
 883         default:
 884                 pr_info("Trying to register unknown ADB device to input layer.\n");
 885                 err = -ENODEV;
 886                 goto fail;
 887         }
 888
 889         input_dev->keycode = hid->keycode;
 890
 891         err = input_register_device(input_dev);
 892         if (err)
 893                 goto fail;
 894
 895         if (default_id == ADB_KEYBOARD) {
 896                 /* HACK WARNING!! This should go away as soon there is an utility
 897                  * to control that for event devices.
 898                  */
 899                 input_dev->rep[REP_DELAY] = 500;   /* input layer default: 250 */
 900                 input_dev->rep[REP_PERIOD] = 66; /* input layer default: 33 */
 901         }
 902
 903         return 0;
 904
 905  fail:  input_free_device(input_dev);
 906         if (hid) {
 907                 kfree(hid->keycode);
 908                 kfree(hid);
 909         }
 910         adbhid[id] = NULL;
 911         return err;
 912 }
 913
 914 static void adbhid_input_unregister(int id)
 915 {
 916         input_unregister_device(adbhid[id]->input);
 917         kfree(adbhid[id]->keycode);
 918         kfree(adbhid[id]);
 919         adbhid[id] = NULL;
 920 }
 921
 922
 923 static u16
 924 adbhid_input_reregister(int id, int default_id, int org_handler_id,
 925                         int cur_handler_id, int mk)
 926 {
 927         if (adbhid[id]) {
 928                 if (adbhid[id]->input->id.product !=
 929                     ((id << 12)|(default_id << 8)|org_handler_id)) {
 930                         adbhid_input_unregister(id);
 931                         adbhid_input_register(id, default_id, org_handler_id,
 932                                               cur_handler_id, mk);
 933                 }
 934         } else
 935                 adbhid_input_register(id, default_id, org_handler_id,
 936                                       cur_handler_id, mk);
 937         return 1<<id;
 938 }
 939
 940 static void
 941 adbhid_input_devcleanup(u16 exist)
 942 {
 943         int i;
 944         for(i=1; i<16; i++)
 945                 if (adbhid[i] && !(exist&(1<<i)))
 946                         adbhid_input_unregister(i);
 947 }
 948
 949 static void
 950 adbhid_probe(void)
 951 {
 952         struct adb_request req;
 953         int i, default_id, org_handler_id, cur_handler_id;
 954         u16 reg = 0;
 955
 956         adb_register(ADB_MOUSE, 0, &mouse_ids, adbhid_mouse_input);
 957         adb_register(ADB_KEYBOARD, 0, &keyboard_ids, adbhid_keyboard_input);
 958         adb_register(ADB_MISC, 0, &buttons_ids, adbhid_buttons_input);
 959
 960         for (i = 0; i < keyboard_ids.nids; i++) {
 961                 int id = keyboard_ids.id[i];
 962
 963                 adb_get_infos(id, &default_id, &org_handler_id);
 964
 965                 /* turn off all leds */
 966                 adb_request(&req, NULL, ADBREQ_SYNC, 3,
 967                             ADB_WRITEREG(id, KEYB_LEDREG), 0xff, 0xff);
 968
 969                 /* Enable full feature set of the keyboard
 970                    ->get it to send separate codes for left and right shift,
 971                    control, option keys */
 972 #if 0           /* handler 5 doesn't send separate codes for R modifiers */
 973                 if (!adb_try_handler_change(id, 5))
 974 #endif
 975                 adb_try_handler_change(id, 3);
 976
 977                 adb_get_infos(id, &default_id, &cur_handler_id);
 978                 printk(KERN_DEBUG "ADB keyboard at %d has handler 0x%X\n",
 979                        id, cur_handler_id);
 980                 reg |= adbhid_input_reregister(id, default_id, org_handler_id,
 981                                                cur_handler_id, 0);
 982         }
 983
 984         for (i = 0; i < buttons_ids.nids; i++) {
 985                 int id = buttons_ids.id[i];
 986
 987                 adb_get_infos(id, &default_id, &org_handler_id);
 988                 reg |= adbhid_input_reregister(id, default_id, org_handler_id,
 989                                                org_handler_id, 0);
 990         }
 991
 992         /* Try to switch all mice to handler 4, or 2 for three-button
 993            mode and full resolution. */
 994         for (i = 0; i < mouse_ids.nids; i++) {
 995                 int id = mouse_ids.id[i];
 996                 int mouse_kind;
 997                 char *desc = "standard";
 998
 999                 adb_get_infos(id, &default_id, &org_handler_id);
1000
1001                 if (adb_try_handler_change(id, 4)) {
1002                         mouse_kind = ADBMOUSE_EXTENDED;
1003                 }
1004                 else if (adb_try_handler_change(id, 0x2F)) {
1005                         mouse_kind = ADBMOUSE_MICROSPEED;
1006                 }
1007                 else if (adb_try_handler_change(id, 0x42)) {
1008                         mouse_kind = ADBMOUSE_TRACKBALLPRO;
1009                 }
1010                 else if (adb_try_handler_change(id, 0x66)) {
1011                         mouse_kind = ADBMOUSE_MICROSPEED;
1012                 }
1013                 else if (adb_try_handler_change(id, 0x5F)) {
1014                         mouse_kind = ADBMOUSE_MICROSPEED;
1015                 }
1016                 else if (adb_try_handler_change(id, 3)) {
1017                         mouse_kind = ADBMOUSE_MS_A3;
1018                 }
1019                 else if (adb_try_handler_change(id, 2)) {
1020                         mouse_kind = ADBMOUSE_STANDARD_200;
1021                 }
1022                 else {
1023                         mouse_kind = ADBMOUSE_STANDARD_100;
1024                 }
1025
1026                 if ((mouse_kind == ADBMOUSE_TRACKBALLPRO)
1027                     || (mouse_kind == ADBMOUSE_MICROSPEED)) {
1028                         desc = "Microspeed/MacPoint or compatible";
1029                         init_microspeed(id);
1030                 } else if (mouse_kind == ADBMOUSE_MS_A3) {
1031                         desc = "Mouse Systems A3 Mouse or compatible";
1032                         init_ms_a3(id);
1033                 } else if (mouse_kind ==  ADBMOUSE_EXTENDED) {
1034                         desc = "extended";
1035                         /*
1036                          * Register 1 is usually used for device
1037                          * identification.  Here, we try to identify
1038                          * a known device and call the appropriate
1039                          * init function.
1040                          */
1041                         adb_request(&req, NULL, ADBREQ_SYNC | ADBREQ_REPLY, 1,
1042                                     ADB_READREG(id, 1));
1043
1044                         if ((req.reply_len) &&
1045                             (req.reply[1] == 0x9a) && ((req.reply[2] == 0x21)
1046                                 || (req.reply[2] == 0x20))) {
1047                                 mouse_kind = ADBMOUSE_TRACKBALL;
1048                                 desc = "trackman/mouseman";
1049                                 init_trackball(id);
1050                         }
1051                         else if ((req.reply_len >= 4) &&
1052                             (req.reply[1] == 0x74) && (req.reply[2] == 0x70) &&
1053                             (req.reply[3] == 0x61) && (req.reply[4] == 0x64)) {
1054                                 mouse_kind = ADBMOUSE_TRACKPAD;
1055                                 desc = "trackpad";
1056                                 init_trackpad(id);
1057                         }
1058                         else if ((req.reply_len >= 4) &&
1059                             (req.reply[1] == 0x4b) && (req.reply[2] == 0x4d) &&
1060                             (req.reply[3] == 0x4c) && (req.reply[4] == 0x31)) {
1061                                 mouse_kind = ADBMOUSE_TURBOMOUSE5;
1062                                 desc = "TurboMouse 5";
1063                                 init_turbomouse(id);
1064                         }
1065                         else if ((req.reply_len == 9) &&
1066                             (req.reply[1] == 0x4b) && (req.reply[2] == 0x4f) &&
1067                             (req.reply[3] == 0x49) && (req.reply[4] == 0x54)) {
1068                                 if (adb_try_handler_change(id, 0x42)) {
1069                                         mouse_kind = ADBMOUSE_MACALLY2;
1070                                         desc = "MacAlly 2-button";
1071                                 }
1072                         }
1073                 }
1074
1075                 adb_get_infos(id, &default_id, &cur_handler_id);
1076                 printk(KERN_DEBUG "ADB mouse (%s) at %d has handler 0x%X\n",
1077                        desc, id, cur_handler_id);
1078                 reg |= adbhid_input_reregister(id, default_id, org_handler_id,
1079                                                cur_handler_id, mouse_kind);
1080         }
1081         adbhid_input_devcleanup(reg);
1082 }
1083
1084 static void
1085 init_trackpad(int id)
1086 {
1087         struct adb_request req;
1088         unsigned char r1_buffer[8];
1089
1090         adb_request(&req, NULL, ADBREQ_SYNC | ADBREQ_REPLY, 1,
1091                     ADB_READREG(id,1));
1092         if (req.reply_len < 8)
1093                 pr_err("%s: bad length for reg. 1\n", __func__);
1094         else
1095         {
1096             memcpy(r1_buffer, &req.reply[1], 8);
1097
1098             adb_request(&req, NULL, ADBREQ_SYNC, 9,
1099                 ADB_WRITEREG(id,1),
1100                     r1_buffer[0],
1101                     r1_buffer[1],
1102                     r1_buffer[2],
1103                     r1_buffer[3],
1104                     r1_buffer[4],
1105                     r1_buffer[5],
1106                     0x0d,
1107                     r1_buffer[7]);
1108
1109             adb_request(&req, NULL, ADBREQ_SYNC, 9,
1110                 ADB_WRITEREG(id,2),
1111                     0x99,
1112                     0x94,
1113                     0x19,
1114                     0xff,
1115                     0xb2,
1116                     0x8a,
1117                     0x1b,
1118                     0x50);
1119
1120             adb_request(&req, NULL, ADBREQ_SYNC, 9,
1121                 ADB_WRITEREG(id,1),
1122                     r1_buffer[0],
1123                     r1_buffer[1],
1124                     r1_buffer[2],
1125                     r1_buffer[3],
1126                     r1_buffer[4],
1127                     r1_buffer[5],
1128                     0x03, /*r1_buffer[6],*/
1129                     r1_buffer[7]);
1130
1131             /* Without this flush, the trackpad may be locked up */
1132             adb_request(&req, NULL, ADBREQ_SYNC, 1, ADB_FLUSH(id));
1133         }
1134 }
1135
1136 static void
1137 init_trackball(int id)
1138 {
1139         struct adb_request req;
1140
1141         adb_request(&req, NULL, ADBREQ_SYNC, 3,
1142         ADB_WRITEREG(id,1), 00,0x81);
1143
1144         adb_request(&req, NULL, ADBREQ_SYNC, 3,
1145         ADB_WRITEREG(id,1), 01,0x81);
1146
1147         adb_request(&req, NULL, ADBREQ_SYNC, 3,
1148         ADB_WRITEREG(id,1), 02,0x81);
1149
1150         adb_request(&req, NULL, ADBREQ_SYNC, 3,
1151         ADB_WRITEREG(id,1), 03,0x38);
1152
1153         adb_request(&req, NULL, ADBREQ_SYNC, 3,
1154         ADB_WRITEREG(id,1), 00,0x81);
1155
1156         adb_request(&req, NULL, ADBREQ_SYNC, 3,
1157         ADB_WRITEREG(id,1), 01,0x81);
1158
1159         adb_request(&req, NULL, ADBREQ_SYNC, 3,
1160         ADB_WRITEREG(id,1), 02,0x81);
1161
1162         adb_request(&req, NULL, ADBREQ_SYNC, 3,
1163         ADB_WRITEREG(id,1), 03,0x38);
1164 }
1165
1166 static void
1167 init_turbomouse(int id)
1168 {
1169         struct adb_request req;
1170
1171         adb_request(&req, NULL, ADBREQ_SYNC, 1, ADB_FLUSH(id));
1172
1173         adb_request(&req, NULL, ADBREQ_SYNC, 1, ADB_FLUSH(3));
1174
1175         adb_request(&req, NULL, ADBREQ_SYNC, 9,
1176         ADB_WRITEREG(3,2),
1177             0xe7,
1178             0x8c,
1179             0,
1180             0,
1181             0,
1182             0xff,
1183             0xff,
1184             0x94);
1185
1186         adb_request(&req, NULL, ADBREQ_SYNC, 1, ADB_FLUSH(3));
1187
1188         adb_request(&req, NULL, ADBREQ_SYNC, 9,
1189         ADB_WRITEREG(3,2),
1190             0xa5,
1191             0x14,
1192             0,
1193             0,
1194             0x69,
1195             0xff,
1196             0xff,
1197             0x27);
1198 }
1199
1200 static void
1201 init_microspeed(int id)
1202 {
1203         struct adb_request req;
1204
1205         adb_request(&req, NULL, ADBREQ_SYNC, 1, ADB_FLUSH(id));
1206
1207         /* This will initialize mice using the Microspeed, MacPoint and
1208            other compatible firmware. Bit 12 enables extended protocol.
1209
1210            Register 1 Listen (4 Bytes)
1211             0 -  3     Button is mouse (set also for double clicking!!!)
1212             4 -  7     Button is locking (affects change speed also)
1213             8 - 11     Button changes speed
1214            12          1 = Extended mouse mode, 0 = normal mouse mode
1215            13 - 15     unused 0
1216            16 - 23     normal speed
1217            24 - 31     changed speed
1218
1219        Register 1 talk holds version and product identification information.
1220        Register 1 Talk (4 Bytes):
1221             0 -  7     Product code
1222             8 - 23     undefined, reserved
1223            24 - 31     Version number
1224
1225        Speed 0 is max. 1 to 255 set speed in increments of 1/256 of max.
1226  */
1227         adb_request(&req, NULL, ADBREQ_SYNC, 5,
1228         ADB_WRITEREG(id,1),
1229             0x20,       /* alt speed = 0x20 (rather slow) */
1230             0x00,       /* norm speed = 0x00 (fastest) */
1231             0x10,       /* extended protocol, no speed change */
1232             0x07);      /* all buttons enabled as mouse buttons, no locking */
1233
1234
1235         adb_request(&req, NULL, ADBREQ_SYNC, 1, ADB_FLUSH(id));
1236 }
1237
1238 static void
1239 init_ms_a3(int id)
1240 {
1241         struct adb_request req;
1242
1243         adb_request(&req, NULL, ADBREQ_SYNC, 3,
1244         ADB_WRITEREG(id, 0x2),
1245             0x00,
1246             0x07);
1247
1248         adb_request(&req, NULL, ADBREQ_SYNC, 1, ADB_FLUSH(id));
1249 }
1250
1251 static int __init adbhid_init(void)
1252 {
1253 #ifndef CONFIG_MAC
1254         if (!machine_is(chrp) && !machine_is(powermac))
1255                 return 0;
1256 #endif
1257
1258         led_request.complete = 1;
1259
1260         adbhid_probe();
1261
1262         blocking_notifier_chain_register(&adb_client_list,
1263                         &adbhid_adb_notifier);
1264
1265         return 0;
1266 }
1267
1268 static void __exit adbhid_exit(void)
1269 {
1270 }
1271
1272 module_init(adbhid_init);
1273 module_exit(adbhid_exit);