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);
1288