1/*
   2 * drivers/macintosh/adbhid.c
   3 *
   4 * ADB HID driver for Power Macintosh computers.
   5 *
   6 * Adapted from drivers/macintosh/mac_keyb.c by Franz Sirl.
   7 * drivers/macintosh/mac_keyb.c was Copyright (C) 1996 Paul Mackerras
   8 * with considerable contributions from Ben Herrenschmidt and others.
   9 *
  10 * Copyright (C) 2000 Franz Sirl.
  11 *
  12 * Adapted to ADB changes and support for more devices by
  13 * Benjamin Herrenschmidt. Adapted from code in MkLinux
  14 * and reworked.
  15 * 
  16 * Supported devices:
  17 *
  18 * - Standard 1 button mouse
  19 * - All standard Apple Extended protocol (handler ID 4)
  20 * - mouseman and trackman mice & trackballs 
  21 * - PowerBook Trackpad (default setup: enable tapping)
  22 * - MicroSpeed mouse & trackball (needs testing)
  23 * - CH Products Trackball Pro (needs testing)
  24 * - Contour Design (Contour Mouse)
  25 * - Hunter digital (NoHandsMouse)
  26 * - Kensignton TurboMouse 5 (needs testing)
  27 * - Mouse Systems A3 mice and trackballs <aidan@kublai.com>
  28 * - MacAlly 2-buttons mouse (needs testing) <pochini@denise.shiny.it>
  29 *
  30 * To do:
  31 *
  32 * Improve Kensington support.
  33 * Split mouse/kbd
  34 * Move to syfs
  35 */
  36
  37#include <linux/module.h>
  38#include <linux/slab.h>
  39#include <linux/init.h>
  40#include <linux/notifier.h>
  41#include <linux/input.h>
  42
  43#include <linux/adb.h>
  44#include <linux/cuda.h>
  45#include <linux/pmu.h>
  46
  47#include <asm/machdep.h>
  48#ifdef CONFIG_PPC_PMAC
  49#include <asm/backlight.h>
  50#include <asm/pmac_feature.h>
  51#endif
  52
  53MODULE_AUTHOR("Franz Sirl <Franz.Sirl-kernel@lauterbach.com>");
  54
  55static int restore_capslock_events;
  56module_param(restore_capslock_events, int, 0644);
  57MODULE_PARM_DESC(restore_capslock_events,
  58	"Produce keypress events for capslock on both keyup and keydown.");
  59
  60#define KEYB_KEYREG	0	/* register # for key up/down data */
  61#define KEYB_LEDREG	2	/* register # for leds on ADB keyboard */
  62#define MOUSE_DATAREG	0	/* reg# for movement/button codes from mouse */
  63
  64static int adb_message_handler(struct notifier_block *, unsigned long, void *);
  65static struct notifier_block adbhid_adb_notifier = {
  66	.notifier_call	= adb_message_handler,
  67};
  68
  69/* Some special keys */
  70#define ADB_KEY_DEL		0x33
  71#define ADB_KEY_CMD		0x37
  72#define ADB_KEY_CAPSLOCK	0x39
  73#define ADB_KEY_FN		0x3f
  74#define ADB_KEY_FWDEL		0x75
  75#define ADB_KEY_POWER_OLD	0x7e
  76#define ADB_KEY_POWER		0x7f
  77
  78static const u16 adb_to_linux_keycodes[128] = {
  79	/* 0x00 */ KEY_A, 		/*  30 */
  80	/* 0x01 */ KEY_S, 		/*  31 */
  81	/* 0x02 */ KEY_D,		/*  32 */
  82	/* 0x03 */ KEY_F,		/*  33 */
  83	/* 0x04 */ KEY_H,		/*  35 */
  84	/* 0x05 */ KEY_G,		/*  34 */
  85	/* 0x06 */ KEY_Z,		/*  44 */
  86	/* 0x07 */ KEY_X,		/*  45 */
  87	/* 0x08 */ KEY_C,		/*  46 */
  88	/* 0x09 */ KEY_V,		/*  47 */
  89	/* 0x0a */ KEY_102ND,		/*  86 */
  90	/* 0x0b */ KEY_B,		/*  48 */
  91	/* 0x0c */ KEY_Q,		/*  16 */
  92	/* 0x0d */ KEY_W,		/*  17 */
  93	/* 0x0e */ KEY_E,		/*  18 */
  94	/* 0x0f */ KEY_R,		/*  19 */
  95	/* 0x10 */ KEY_Y,		/*  21 */
  96	/* 0x11 */ KEY_T,		/*  20 */
  97	/* 0x12 */ KEY_1,		/*   2 */
  98	/* 0x13 */ KEY_2,		/*   3 */
  99	/* 0x14 */ KEY_3,		/*   4 */
 100	/* 0x15 */ KEY_4,		/*   5 */
 101	/* 0x16 */ KEY_6,		/*   7 */
 102	/* 0x17 */ KEY_5,		/*   6 */
 103	/* 0x18 */ KEY_EQUAL,		/*  13 */
 104	/* 0x19 */ KEY_9,		/*  10 */
 105	/* 0x1a */ KEY_7,		/*   8 */
 106	/* 0x1b */ KEY_MINUS,		/*  12 */
 107	/* 0x1c */ KEY_8,		/*   9 */
 108	/* 0x1d */ KEY_0,		/*  11 */
 109	/* 0x1e */ KEY_RIGHTBRACE,	/*  27 */
 110	/* 0x1f */ KEY_O,		/*  24 */
 111	/* 0x20 */ KEY_U,		/*  22 */
 112	/* 0x21 */ KEY_LEFTBRACE,	/*  26 */
 113	/* 0x22 */ KEY_I,		/*  23 */
 114	/* 0x23 */ KEY_P,		/*  25 */
 115	/* 0x24 */ KEY_ENTER,		/*  28 */
 116	/* 0x25 */ KEY_L,		/*  38 */
 117	/* 0x26 */ KEY_J,		/*  36 */
 118	/* 0x27 */ KEY_APOSTROPHE,	/*  40 */
 119	/* 0x28 */ KEY_K,		/*  37 */
 120	/* 0x29 */ KEY_SEMICOLON,	/*  39 */
 121	/* 0x2a */ KEY_BACKSLASH,	/*  43 */
 122	/* 0x2b */ KEY_COMMA,		/*  51 */
 123	/* 0x2c */ KEY_SLASH,		/*  53 */
 124	/* 0x2d */ KEY_N,		/*  49 */
 125	/* 0x2e */ KEY_M,		/*  50 */
 126	/* 0x2f */ KEY_DOT,		/*  52 */
 127	/* 0x30 */ KEY_TAB,		/*  15 */
 128	/* 0x31 */ KEY_SPACE,		/*  57 */
 129	/* 0x32 */ KEY_GRAVE,		/*  41 */
 130	/* 0x33 */ KEY_BACKSPACE,	/*  14 */
 131	/* 0x34 */ KEY_KPENTER,		/*  96 */
 132	/* 0x35 */ KEY_ESC,		/*   1 */
 133	/* 0x36 */ KEY_LEFTCTRL,	/*  29 */
 134	/* 0x37 */ KEY_LEFTMETA,	/* 125 */
 135	/* 0x38 */ KEY_LEFTSHIFT,	/*  42 */
 136	/* 0x39 */ KEY_CAPSLOCK,	/*  58 */
 137	/* 0x3a */ KEY_LEFTALT,		/*  56 */
 138	/* 0x3b */ KEY_LEFT,		/* 105 */
 139	/* 0x3c */ KEY_RIGHT,		/* 106 */
 140	/* 0x3d */ KEY_DOWN,		/* 108 */
 141	/* 0x3e */ KEY_UP,		/* 103 */
 142	/* 0x3f */ KEY_FN,		/* 0x1d0 */
 143	/* 0x40 */ 0,
 144	/* 0x41 */ KEY_KPDOT,		/*  83 */
 145	/* 0x42 */ 0,
 146	/* 0x43 */ KEY_KPASTERISK,	/*  55 */
 147	/* 0x44 */ 0,
 148	/* 0x45 */ KEY_KPPLUS,		/*  78 */
 149	/* 0x46 */ 0,
 150	/* 0x47 */ KEY_NUMLOCK,		/*  69 */
 151	/* 0x48 */ 0,
 152	/* 0x49 */ 0,
 153	/* 0x4a */ 0,
 154	/* 0x4b */ KEY_KPSLASH,		/*  98 */
 155	/* 0x4c */ KEY_KPENTER,		/*  96 */
 156	/* 0x4d */ 0,
 157	/* 0x4e */ KEY_KPMINUS,		/*  74 */
 158	/* 0x4f */ 0,
 159	/* 0x50 */ 0,
 160	/* 0x51 */ KEY_KPEQUAL,		/* 117 */
 161	/* 0x52 */ KEY_KP0,		/*  82 */
 162	/* 0x53 */ KEY_KP1,		/*  79 */
 163	/* 0x54 */ KEY_KP2,		/*  80 */
 164	/* 0x55 */ KEY_KP3,		/*  81 */
 165	/* 0x56 */ KEY_KP4,		/*  75 */
 166	/* 0x57 */ KEY_KP5,		/*  76 */
 167	/* 0x58 */ KEY_KP6,		/*  77 */
 168	/* 0x59 */ KEY_KP7,		/*  71 */
 169	/* 0x5a */ 0,
 170	/* 0x5b */ KEY_KP8,		/*  72 */
 171	/* 0x5c */ KEY_KP9,		/*  73 */
 172	/* 0x5d */ KEY_YEN,		/* 124 */
 173	/* 0x5e */ KEY_RO,		/*  89 */
 174	/* 0x5f */ KEY_KPCOMMA,		/* 121 */
 175	/* 0x60 */ KEY_F5,		/*  63 */
 176	/* 0x61 */ KEY_F6,		/*  64 */
 177	/* 0x62 */ KEY_F7,		/*  65 */
 178	/* 0x63 */ KEY_F3,		/*  61 */
 179	/* 0x64 */ KEY_F8,		/*  66 */
 180	/* 0x65 */ KEY_F9,		/*  67 */
 181	/* 0x66 */ KEY_HANJA,		/* 123 */
 182	/* 0x67 */ KEY_F11,		/*  87 */
 183	/* 0x68 */ KEY_HANGEUL,		/* 122 */
 184	/* 0x69 */ KEY_SYSRQ,		/*  99 */
 185	/* 0x6a */ 0,
 186	/* 0x6b */ KEY_SCROLLLOCK,	/*  70 */
 187	/* 0x6c */ 0,
 188	/* 0x6d */ KEY_F10,		/*  68 */
 189	/* 0x6e */ KEY_COMPOSE,		/* 127 */
 190	/* 0x6f */ KEY_F12,		/*  88 */
 191	/* 0x70 */ 0,
 192	/* 0x71 */ KEY_PAUSE,		/* 119 */
 193	/* 0x72 */ KEY_INSERT,		/* 110 */
 194	/* 0x73 */ KEY_HOME,		/* 102 */
 195	/* 0x74 */ KEY_PAGEUP,		/* 104 */
 196	/* 0x75 */ KEY_DELETE,		/* 111 */
 197	/* 0x76 */ KEY_F4,		/*  62 */
 198	/* 0x77 */ KEY_END,		/* 107 */
 199	/* 0x78 */ KEY_F2,		/*  60 */
 200	/* 0x79 */ KEY_PAGEDOWN,	/* 109 */
 201	/* 0x7a */ KEY_F1,		/*  59 */
 202	/* 0x7b */ KEY_RIGHTSHIFT,	/*  54 */
 203	/* 0x7c */ KEY_RIGHTALT,	/* 100 */
 204	/* 0x7d */ KEY_RIGHTCTRL,	/*  97 */
 205	/* 0x7e */ KEY_RIGHTMETA,	/* 126 */
 206	/* 0x7f */ KEY_POWER,		/* 116 */
 207};
 208
 209struct adbhid {
 210	struct input_dev *input;
 211	int id;
 212	int default_id;
 213	int original_handler_id;
 214	int current_handler_id;
 215	int mouse_kind;
 216	u16 *keycode;
 217	char name[64];
 218	char phys[32];
 219	int flags;
 220};
 221
 222#define FLAG_FN_KEY_PRESSED		0x00000001
 223#define FLAG_POWER_FROM_FN		0x00000002
 224#define FLAG_EMU_FWDEL_DOWN		0x00000004
 225#define FLAG_CAPSLOCK_TRANSLATE		0x00000008
 226#define FLAG_CAPSLOCK_DOWN		0x00000010
 227#define FLAG_CAPSLOCK_IGNORE_NEXT	0x00000020
 228#define FLAG_POWER_KEY_PRESSED		0x00000040
 229
 230static struct adbhid *adbhid[16];
 231
 232static void adbhid_probe(void);
 233
 234static void adbhid_input_keycode(int, int, int);
 235
 236static void init_trackpad(int id);
 237static void init_trackball(int id);
 238static void init_turbomouse(int id);
 239static void init_microspeed(int id);
 240static void init_ms_a3(int id);
 241
 242static struct adb_ids keyboard_ids;
 243static struct adb_ids mouse_ids;
 244static struct adb_ids buttons_ids;
 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
 264static void
 265adbhid_keyboard_input(unsigned char *data, int nb, 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);
 279	if (!(data[2] == 0xff || (data[2] == 0x7f && data[1] == 0x7f)))
 280		adbhid_input_keycode(id, data[2], 0);
 281}
 282
 283static void
 284adbhid_input_keycode(int id, int scancode, int repeat)
 285{
 286	struct adbhid *ahid = adbhid[id];
 287	int keycode, up_flag, key;
 288
 289	keycode = scancode & 0x7f;
 290	up_flag = scancode & 0x80;
 291
 292	if (restore_capslock_events) {
 293		if (keycode == ADB_KEY_CAPSLOCK && !up_flag) {
 294			/* Key pressed, turning on the CapsLock LED.
 295			 * The next 0xff will be interpreted as a release. */
 296			if (ahid->flags & FLAG_CAPSLOCK_IGNORE_NEXT) {
 297				/* Throw away this key event if it happens
 298				 * just after resume. */
 299				ahid->flags &= ~FLAG_CAPSLOCK_IGNORE_NEXT;
 300				return;
 301			} else {
 302				ahid->flags |= FLAG_CAPSLOCK_TRANSLATE
 303					| FLAG_CAPSLOCK_DOWN;
 304			}
 305		} else if (scancode == 0xff &&
 306			   !(ahid->flags & FLAG_POWER_KEY_PRESSED)) {
 307			/* Scancode 0xff usually signifies that the capslock
 308			 * key was either pressed or released, or that the
 309			 * power button was released. */
 310			if (ahid->flags & FLAG_CAPSLOCK_TRANSLATE) {
 311				keycode = ADB_KEY_CAPSLOCK;
 312				if (ahid->flags & FLAG_CAPSLOCK_DOWN) {
 313					/* Key released */
 314					up_flag = 1;
 315					ahid->flags &= ~FLAG_CAPSLOCK_DOWN;
 316				} else {
 317					/* Key pressed */
 318					up_flag = 0;
 319					ahid->flags &= ~FLAG_CAPSLOCK_TRANSLATE;
 320				}
 321			} else {
 322				printk(KERN_INFO "Spurious caps lock event "
 323						 "(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		printk(KERN_INFO "Unhandled ADB key (scancode %#02x) %s.\n", keycode,
 400		       up_flag ? "released" : "pressed");
 401
 402}
 403
 404static void
 405adbhid_mouse_input(unsigned char *data, int nb, int autopoll)
 406{
 407	int id = (data[0] >> 4) & 0x0f;
 408
 409	if (!adbhid[id]) {
 410		printk(KERN_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
 502static void
 503adbhid_buttons_input(unsigned char *data, int nb, int autopoll)
 504{
 505	int id = (data[0] >> 4) & 0x0f;
 506
 507	if (!adbhid[id]) {
 508		printk(KERN_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			printk(KERN_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				printk(KERN_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			printk(KERN_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
 628static struct adb_request led_request;
 629static int leds_pending[16];
 630static int leds_req_pending;
 631static int pending_devs[16];
 632static int pending_led_start;
 633static int pending_led_end;
 634static DEFINE_SPINLOCK(leds_lock);
 635
 636static 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
 658static 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 */
 684static 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
 701static void
 702adbhid_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
 716static int
 717adb_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
 752static int
 753adbhid_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
 761	if (adbhid[id]) {
 762		printk(KERN_ERR "Trying to reregister ADB HID on ID %d\n", id);
 763		return -EEXIST;
 764	}
 765
 766	adbhid[id] = hid = kzalloc(sizeof(struct adbhid), GFP_KERNEL);
 767	input_dev = input_allocate_device();
 768	if (!hid || !input_dev) {
 769		err = -ENOMEM;
 770		goto fail;
 771	}
 772
 773	sprintf(hid->phys, "adb%d:%d.%02x/input", id, default_id, original_handler_id);
 774
 775	hid->input = input_dev;
 776	hid->id = default_id;
 777	hid->original_handler_id = original_handler_id;
 778	hid->current_handler_id = current_handler_id;
 779	hid->mouse_kind = mouse_kind;
 780	hid->flags = 0;
 781	input_set_drvdata(input_dev, hid);
 782	input_dev->name = hid->name;
 783	input_dev->phys = hid->phys;
 784	input_dev->id.bustype = BUS_ADB;
 785	input_dev->id.vendor = 0x0001;
 786	input_dev->id.product = (id << 12) | (default_id << 8) | original_handler_id;
 787	input_dev->id.version = 0x0100;
 788
 789	switch (default_id) {
 790	case ADB_KEYBOARD:
 791		hid->keycode = kmalloc(sizeof(adb_to_linux_keycodes), GFP_KERNEL);
 792		if (!hid->keycode) {
 793			err = -ENOMEM;
 794			goto fail;
 795		}
 796
 797		sprintf(hid->name, "ADB keyboard");
 798
 799		memcpy(hid->keycode, adb_to_linux_keycodes, sizeof(adb_to_linux_keycodes));
 800
 801		printk(KERN_INFO "Detected ADB keyboard, type ");
 802		switch (original_handler_id) {
 803		default:
 804			printk("<unknown>.\n");
 805			input_dev->id.version = ADB_KEYBOARD_UNKNOWN;
 806			break;
 807
 808		case 0x01: case 0x02: case 0x03: case 0x06: case 0x08:
 809		case 0x0C: case 0x10: case 0x18: case 0x1B: case 0x1C:
 810		case 0xC0: case 0xC3: case 0xC6:
 811			printk("ANSI.\n");
 812			input_dev->id.version = ADB_KEYBOARD_ANSI;
 813			break;
 814
 815		case 0x04: case 0x05: case 0x07: case 0x09: case 0x0D:
 816		case 0x11: case 0x14: case 0x19: case 0x1D: case 0xC1:
 817		case 0xC4: case 0xC7:
 818			printk("ISO, swapping keys.\n");
 819			input_dev->id.version = ADB_KEYBOARD_ISO;
 820			i = hid->keycode[10];
 821			hid->keycode[10] = hid->keycode[50];
 822			hid->keycode[50] = i;
 823			break;
 824
 825		case 0x12: case 0x15: case 0x16: case 0x17: case 0x1A:
 826		case 0x1E: case 0xC2: case 0xC5: case 0xC8: case 0xC9:
 827			printk("JIS.\n");
 828			input_dev->id.version = ADB_KEYBOARD_JIS;
 829			break;
 830		}
 831
 832		for (i = 0; i < 128; i++)
 833			if (hid->keycode[i])
 834				set_bit(hid->keycode[i], input_dev->keybit);
 835
 836		input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_LED) |
 837			BIT_MASK(EV_REP);
 838		input_dev->ledbit[0] = BIT_MASK(LED_SCROLLL) |
 839			BIT_MASK(LED_CAPSL) | BIT_MASK(LED_NUML);
 840		input_dev->event = adbhid_kbd_event;
 841		input_dev->keycodemax = KEY_FN;
 842		input_dev->keycodesize = sizeof(hid->keycode[0]);
 843		break;
 844
 845	case ADB_MOUSE:
 846		sprintf(hid->name, "ADB mouse");
 847
 848		input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL);
 849		input_dev->keybit[BIT_WORD(BTN_MOUSE)] = BIT_MASK(BTN_LEFT) |
 850			BIT_MASK(BTN_MIDDLE) | BIT_MASK(BTN_RIGHT);
 851		input_dev->relbit[0] = BIT_MASK(REL_X) | BIT_MASK(REL_Y);
 852		break;
 853
 854	case ADB_MISC:
 855		switch (original_handler_id) {
 856		case 0x02: /* Adjustable keyboard button device */
 857			sprintf(hid->name, "ADB adjustable keyboard buttons");
 858			input_dev->evbit[0] = BIT_MASK(EV_KEY) |
 859				BIT_MASK(EV_REP);
 860			set_bit(KEY_SOUND, input_dev->keybit);
 861			set_bit(KEY_MUTE, input_dev->keybit);
 862			set_bit(KEY_VOLUMEUP, input_dev->keybit);
 863			set_bit(KEY_VOLUMEDOWN, input_dev->keybit);
 864			break;
 865		case 0x1f: /* Powerbook button device */
 866			sprintf(hid->name, "ADB Powerbook buttons");
 867			input_dev->evbit[0] = BIT_MASK(EV_KEY) |
 868				BIT_MASK(EV_REP);
 869			set_bit(KEY_MUTE, input_dev->keybit);
 870			set_bit(KEY_VOLUMEUP, input_dev->keybit);
 871			set_bit(KEY_VOLUMEDOWN, input_dev->keybit);
 872			set_bit(KEY_BRIGHTNESSUP, input_dev->keybit);
 873			set_bit(KEY_BRIGHTNESSDOWN, input_dev->keybit);
 874			set_bit(KEY_EJECTCD, input_dev->keybit);
 875			set_bit(KEY_SWITCHVIDEOMODE, input_dev->keybit);
 876			set_bit(KEY_KBDILLUMTOGGLE, input_dev->keybit);
 877			set_bit(KEY_KBDILLUMDOWN, input_dev->keybit);
 878			set_bit(KEY_KBDILLUMUP, input_dev->keybit);
 879			break;
 880		}
 881		if (hid->name[0])
 882			break;
 883		/* else fall through */
 884
 885	default:
 886		printk(KERN_INFO "Trying to register unknown ADB device to input layer.\n");
 887		err = -ENODEV;
 888		goto fail;
 889	}
 890
 891	input_dev->keycode = hid->keycode;
 892
 893	err = input_register_device(input_dev);
 894	if (err)
 895		goto fail;
 896
 897	if (default_id == ADB_KEYBOARD) {
 898		/* HACK WARNING!! This should go away as soon there is an utility
 899		 * to control that for event devices.
 900		 */
 901		input_dev->rep[REP_DELAY] = 500;   /* input layer default: 250 */
 902		input_dev->rep[REP_PERIOD] = 66; /* input layer default: 33 */
 903	}
 904
 905	return 0;
 906
 907 fail:	input_free_device(input_dev);
 908	if (hid) {
 909		kfree(hid->keycode);
 910		kfree(hid);
 911	}
 912	adbhid[id] = NULL;
 913	return err;
 914}
 915
 916static void adbhid_input_unregister(int id)
 917{
 918	input_unregister_device(adbhid[id]->input);
 919	kfree(adbhid[id]->keycode);
 920	kfree(adbhid[id]);
 921	adbhid[id] = NULL;
 922}
 923
 924
 925static u16
 926adbhid_input_reregister(int id, int default_id, int org_handler_id,
 927			int cur_handler_id, int mk)
 928{
 929	if (adbhid[id]) {
 930		if (adbhid[id]->input->id.product !=
 931		    ((id << 12)|(default_id << 8)|org_handler_id)) {
 932			adbhid_input_unregister(id);
 933			adbhid_input_register(id, default_id, org_handler_id,
 934					      cur_handler_id, mk);
 935		}
 936	} else
 937		adbhid_input_register(id, default_id, org_handler_id,
 938				      cur_handler_id, mk);
 939	return 1<<id;
 940}
 941
 942static void
 943adbhid_input_devcleanup(u16 exist)
 944{
 945	int i;
 946	for(i=1; i<16; i++)
 947		if (adbhid[i] && !(exist&(1<<i)))
 948			adbhid_input_unregister(i);
 949}
 950
 951static void
 952adbhid_probe(void)
 953{
 954	struct adb_request req;
 955	int i, default_id, org_handler_id, cur_handler_id;
 956	u16 reg = 0;
 957
 958	adb_register(ADB_MOUSE, 0, &mouse_ids, adbhid_mouse_input);
 959	adb_register(ADB_KEYBOARD, 0, &keyboard_ids, adbhid_keyboard_input);
 960	adb_register(ADB_MISC, 0, &buttons_ids, adbhid_buttons_input);
 961
 962	for (i = 0; i < keyboard_ids.nids; i++) {
 963		int id = keyboard_ids.id[i];
 964
 965		adb_get_infos(id, &default_id, &org_handler_id);
 966
 967		/* turn off all leds */
 968		adb_request(&req, NULL, ADBREQ_SYNC, 3,
 969			    ADB_WRITEREG(id, KEYB_LEDREG), 0xff, 0xff);
 970
 971		/* Enable full feature set of the keyboard
 972		   ->get it to send separate codes for left and right shift,
 973		   control, option keys */
 974#if 0		/* handler 5 doesn't send separate codes for R modifiers */
 975		if (adb_try_handler_change(id, 5))
 976			printk("ADB keyboard at %d, handler set to 5\n", id);
 977		else
 978#endif
 979		if (adb_try_handler_change(id, 3))
 980			printk("ADB keyboard at %d, handler set to 3\n", id);
 981		else
 982			printk("ADB keyboard at %d, handler 1\n", id);
 983
 984		adb_get_infos(id, &default_id, &cur_handler_id);
 985		reg |= adbhid_input_reregister(id, default_id, org_handler_id,
 986					       cur_handler_id, 0);
 987	}
 988
 989	for (i = 0; i < buttons_ids.nids; i++) {
 990		int id = buttons_ids.id[i];
 991
 992		adb_get_infos(id, &default_id, &org_handler_id);
 993		reg |= adbhid_input_reregister(id, default_id, org_handler_id,
 994					       org_handler_id, 0);
 995	}
 996
 997	/* Try to switch all mice to handler 4, or 2 for three-button
 998	   mode and full resolution. */
 999	for (i = 0; i < mouse_ids.nids; i++) {
1000		int id = mouse_ids.id[i];
1001		int mouse_kind;
1002
1003		adb_get_infos(id, &default_id, &org_handler_id);
1004
1005		if (adb_try_handler_change(id, 4)) {
1006			printk("ADB mouse at %d, handler set to 4", id);
1007			mouse_kind = ADBMOUSE_EXTENDED;
1008		}
1009		else if (adb_try_handler_change(id, 0x2F)) {
1010			printk("ADB mouse at %d, handler set to 0x2F", id);
1011			mouse_kind = ADBMOUSE_MICROSPEED;
1012		}
1013		else if (adb_try_handler_change(id, 0x42)) {
1014			printk("ADB mouse at %d, handler set to 0x42", id);
1015			mouse_kind = ADBMOUSE_TRACKBALLPRO;
1016		}
1017		else if (adb_try_handler_change(id, 0x66)) {
1018			printk("ADB mouse at %d, handler set to 0x66", id);
1019			mouse_kind = ADBMOUSE_MICROSPEED;
1020		}
1021		else if (adb_try_handler_change(id, 0x5F)) {
1022			printk("ADB mouse at %d, handler set to 0x5F", id);
1023			mouse_kind = ADBMOUSE_MICROSPEED;
1024		}
1025		else if (adb_try_handler_change(id, 3)) {
1026			printk("ADB mouse at %d, handler set to 3", id);
1027			mouse_kind = ADBMOUSE_MS_A3;
1028		}
1029		else if (adb_try_handler_change(id, 2)) {
1030			printk("ADB mouse at %d, handler set to 2", id);
1031			mouse_kind = ADBMOUSE_STANDARD_200;
1032		}
1033		else {
1034			printk("ADB mouse at %d, handler 1", id);
1035			mouse_kind = ADBMOUSE_STANDARD_100;
1036		}
1037
1038		if ((mouse_kind == ADBMOUSE_TRACKBALLPRO)
1039		    || (mouse_kind == ADBMOUSE_MICROSPEED)) {
1040			init_microspeed(id);
1041		} else if (mouse_kind == ADBMOUSE_MS_A3) {
1042			init_ms_a3(id);
1043		} else if (mouse_kind ==  ADBMOUSE_EXTENDED) {
1044			/*
1045			 * Register 1 is usually used for device
1046			 * identification.  Here, we try to identify
1047			 * a known device and call the appropriate
1048			 * init function.
1049			 */
1050			adb_request(&req, NULL, ADBREQ_SYNC | ADBREQ_REPLY, 1,
1051				    ADB_READREG(id, 1));
1052
1053			if ((req.reply_len) &&
1054			    (req.reply[1] == 0x9a) && ((req.reply[2] == 0x21)
1055			    	|| (req.reply[2] == 0x20))) {
1056				mouse_kind = ADBMOUSE_TRACKBALL;
1057				init_trackball(id);
1058			}
1059			else if ((req.reply_len >= 4) &&
1060			    (req.reply[1] == 0x74) && (req.reply[2] == 0x70) &&
1061			    (req.reply[3] == 0x61) && (req.reply[4] == 0x64)) {
1062				mouse_kind = ADBMOUSE_TRACKPAD;
1063				init_trackpad(id);
1064			}
1065			else if ((req.reply_len >= 4) &&
1066			    (req.reply[1] == 0x4b) && (req.reply[2] == 0x4d) &&
1067			    (req.reply[3] == 0x4c) && (req.reply[4] == 0x31)) {
1068				mouse_kind = ADBMOUSE_TURBOMOUSE5;
1069				init_turbomouse(id);
1070			}
1071			else if ((req.reply_len == 9) &&
1072			    (req.reply[1] == 0x4b) && (req.reply[2] == 0x4f) &&
1073			    (req.reply[3] == 0x49) && (req.reply[4] == 0x54)) {
1074				if (adb_try_handler_change(id, 0x42)) {
1075					printk("\nADB MacAlly 2-button mouse at %d, handler set to 0x42", id);
1076					mouse_kind = ADBMOUSE_MACALLY2;
1077				}
1078			}
1079		}
1080		printk("\n");
1081
1082		adb_get_infos(id, &default_id, &cur_handler_id);
1083		reg |= adbhid_input_reregister(id, default_id, org_handler_id,
1084					       cur_handler_id, mouse_kind);
1085	}
1086	adbhid_input_devcleanup(reg);
1087}
1088
1089static void 
1090init_trackpad(int id)
1091{
1092	struct adb_request req;
1093	unsigned char r1_buffer[8];
1094
1095	printk(" (trackpad)");
1096
1097	adb_request(&req, NULL, ADBREQ_SYNC | ADBREQ_REPLY, 1,
1098		    ADB_READREG(id,1));
1099	if (req.reply_len < 8)
1100	    printk("bad length for reg. 1\n");
1101	else
1102	{
1103	    memcpy(r1_buffer, &req.reply[1], 8);
1104
1105	    adb_request(&req, NULL, ADBREQ_SYNC, 9,
1106	        ADB_WRITEREG(id,1),
1107	            r1_buffer[0],
1108	            r1_buffer[1],
1109	            r1_buffer[2],
1110	            r1_buffer[3],
1111	            r1_buffer[4],
1112	            r1_buffer[5],
1113	            0x0d,
1114	            r1_buffer[7]);
1115
1116            adb_request(&req, NULL, ADBREQ_SYNC, 9,
1117	        ADB_WRITEREG(id,2),
1118	    	    0x99,
1119	    	    0x94,
1120	    	    0x19,
1121	    	    0xff,
1122	    	    0xb2,
1123	    	    0x8a,
1124	    	    0x1b,
1125	    	    0x50);
1126
1127	    adb_request(&req, NULL, ADBREQ_SYNC, 9,
1128	        ADB_WRITEREG(id,1),
1129	            r1_buffer[0],
1130	            r1_buffer[1],
1131	            r1_buffer[2],
1132	            r1_buffer[3],
1133	            r1_buffer[4],
1134	            r1_buffer[5],
1135	            0x03, /*r1_buffer[6],*/
1136	            r1_buffer[7]);
1137
1138	    /* Without this flush, the trackpad may be locked up */
1139	    adb_request(&req, NULL, ADBREQ_SYNC, 1, ADB_FLUSH(id));
1140        }
1141}
1142
1143static void 
1144init_trackball(int id)
1145{
1146	struct adb_request req;
1147
1148	printk(" (trackman/mouseman)");
1149
1150	adb_request(&req, NULL, ADBREQ_SYNC, 3,
1151	ADB_WRITEREG(id,1), 00,0x81);
1152
1153	adb_request(&req, NULL, ADBREQ_SYNC, 3,
1154	ADB_WRITEREG(id,1), 01,0x81);
1155
1156	adb_request(&req, NULL, ADBREQ_SYNC, 3,
1157	ADB_WRITEREG(id,1), 02,0x81);
1158
1159	adb_request(&req, NULL, ADBREQ_SYNC, 3,
1160	ADB_WRITEREG(id,1), 03,0x38);
1161
1162	adb_request(&req, NULL, ADBREQ_SYNC, 3,
1163	ADB_WRITEREG(id,1), 00,0x81);
1164
1165	adb_request(&req, NULL, ADBREQ_SYNC, 3,
1166	ADB_WRITEREG(id,1), 01,0x81);
1167
1168	adb_request(&req, NULL, ADBREQ_SYNC, 3,
1169	ADB_WRITEREG(id,1), 02,0x81);
1170
1171	adb_request(&req, NULL, ADBREQ_SYNC, 3,
1172	ADB_WRITEREG(id,1), 03,0x38);
1173}
1174
1175static void
1176init_turbomouse(int id)
1177{
1178	struct adb_request req;
1179
1180        printk(" (TurboMouse 5)");
1181
1182	adb_request(&req, NULL, ADBREQ_SYNC, 1, ADB_FLUSH(id));
1183
1184	adb_request(&req, NULL, ADBREQ_SYNC, 1, ADB_FLUSH(3));
1185
1186	adb_request(&req, NULL, ADBREQ_SYNC, 9,
1187	ADB_WRITEREG(3,2),
1188	    0xe7,
1189	    0x8c,
1190	    0,
1191	    0,
1192	    0,
1193	    0xff,
1194	    0xff,
1195	    0x94);
1196
1197	adb_request(&req, NULL, ADBREQ_SYNC, 1, ADB_FLUSH(3));
1198
1199	adb_request(&req, NULL, ADBREQ_SYNC, 9,
1200	ADB_WRITEREG(3,2),
1201	    0xa5,
1202	    0x14,
1203	    0,
1204	    0,
1205	    0x69,
1206	    0xff,
1207	    0xff,
1208	    0x27);
1209}
1210
1211static void
1212init_microspeed(int id)
1213{
1214	struct adb_request req;
1215
1216        printk(" (Microspeed/MacPoint or compatible)");
1217
1218	adb_request(&req, NULL, ADBREQ_SYNC, 1, ADB_FLUSH(id));
1219
1220	/* This will initialize mice using the Microspeed, MacPoint and
1221	   other compatible firmware. Bit 12 enables extended protocol.
1222	   
1223	   Register 1 Listen (4 Bytes)
1224            0 -  3     Button is mouse (set also for double clicking!!!)
1225            4 -  7     Button is locking (affects change speed also)
1226            8 - 11     Button changes speed
1227           12          1 = Extended mouse mode, 0 = normal mouse mode
1228           13 - 15     unused 0
1229           16 - 23     normal speed
1230           24 - 31     changed speed
1231
1232       Register 1 talk holds version and product identification information.
1233       Register 1 Talk (4 Bytes):
1234            0 -  7     Product code
1235            8 - 23     undefined, reserved
1236           24 - 31     Version number
1237        
1238       Speed 0 is max. 1 to 255 set speed in increments of 1/256 of max.
1239 */
1240	adb_request(&req, NULL, ADBREQ_SYNC, 5,
1241	ADB_WRITEREG(id,1),
1242	    0x20,	/* alt speed = 0x20 (rather slow) */
1243	    0x00,	/* norm speed = 0x00 (fastest) */
1244	    0x10,	/* extended protocol, no speed change */
1245	    0x07);	/* all buttons enabled as mouse buttons, no locking */
1246
1247
1248	adb_request(&req, NULL, ADBREQ_SYNC, 1, ADB_FLUSH(id));
1249}
1250
1251static void
1252init_ms_a3(int id)
1253{
1254	struct adb_request req;
1255
1256	printk(" (Mouse Systems A3 Mouse, or compatible)");
1257	adb_request(&req, NULL, ADBREQ_SYNC, 3,
1258	ADB_WRITEREG(id, 0x2),
1259	    0x00,
1260	    0x07);
1261 
1262 	adb_request(&req, NULL, ADBREQ_SYNC, 1, ADB_FLUSH(id));
1263}
1264
1265static int __init adbhid_init(void)
1266{
1267#ifndef CONFIG_MAC
1268	if (!machine_is(chrp) && !machine_is(powermac))
1269		return 0;
1270#endif
1271
1272	led_request.complete = 1;
1273
1274	adbhid_probe();
1275
1276	blocking_notifier_chain_register(&adb_client_list,
1277			&adbhid_adb_notifier);
1278
1279	return 0;
1280}
1281
1282static void __exit adbhid_exit(void)
1283{
1284}
1285 
1286module_init(adbhid_init);
1287module_exit(adbhid_exit);