V4L/DVB (7575): mt312: add attach-time setting to invert lnb-voltage
[linux-2.6] / drivers / macintosh / adbhid.c
1 /*
2  * drivers/macintosh/adbhid.c
3  *
4  * ADB HID driver for Power Macintosh computers.
5  *
6  * Adapted from drivers/macintosh/mac_keyb.c by Franz Sirl.
7  * drivers/macintosh/mac_keyb.c was Copyright (C) 1996 Paul Mackerras
8  * with considerable contributions from Ben Herrenschmidt and others.
9  *
10  * Copyright (C) 2000 Franz Sirl.
11  *
12  * Adapted to ADB changes and support for more devices by
13  * Benjamin Herrenschmidt. Adapted from code in MkLinux
14  * and reworked.
15  * 
16  * Supported devices:
17  *
18  * - Standard 1 button mouse
19  * - All standard Apple Extended protocol (handler ID 4)
20  * - mouseman and trackman mice & trackballs 
21  * - PowerBook Trackpad (default setup: enable tapping)
22  * - MicroSpeed mouse & trackball (needs testing)
23  * - CH Products Trackball Pro (needs testing)
24  * - Contour Design (Contour Mouse)
25  * - Hunter digital (NoHandsMouse)
26  * - Kensignton TurboMouse 5 (needs testing)
27  * - Mouse Systems A3 mice and trackballs <aidan@kublai.com>
28  * - MacAlly 2-buttons mouse (needs testing) <pochini@denise.shiny.it>
29  *
30  * To do:
31  *
32  * Improve Kensington support.
33  * Split mouse/kbd
34  * Move to syfs
35  */
36
37 #include <linux/module.h>
38 #include <linux/slab.h>
39 #include <linux/init.h>
40 #include <linux/notifier.h>
41 #include <linux/input.h>
42
43 #include <linux/adb.h>
44 #include <linux/cuda.h>
45 #include <linux/pmu.h>
46
47 #include <asm/machdep.h>
48 #ifdef CONFIG_PPC_PMAC
49 #include <asm/backlight.h>
50 #include <asm/pmac_feature.h>
51 #endif
52
53 MODULE_AUTHOR("Franz Sirl <Franz.Sirl-kernel@lauterbach.com>");
54
55 static int restore_capslock_events;
56 module_param(restore_capslock_events, int, 0644);
57 MODULE_PARM_DESC(restore_capslock_events,
58         "Produce keypress events for capslock on both keyup and keydown.");
59
60 #define KEYB_KEYREG     0       /* register # for key up/down data */
61 #define KEYB_LEDREG     2       /* register # for leds on ADB keyboard */
62 #define MOUSE_DATAREG   0       /* reg# for movement/button codes from mouse */
63
64 static int adb_message_handler(struct notifier_block *, unsigned long, void *);
65 static struct notifier_block adbhid_adb_notifier = {
66         .notifier_call  = adb_message_handler,
67 };
68
69 /* Some special keys */
70 #define ADB_KEY_DEL             0x33
71 #define ADB_KEY_CMD             0x37
72 #define ADB_KEY_CAPSLOCK        0x39
73 #define ADB_KEY_FN              0x3f
74 #define ADB_KEY_FWDEL           0x75
75 #define ADB_KEY_POWER_OLD       0x7e
76 #define ADB_KEY_POWER           0x7f
77
78 u16 adb_to_linux_keycodes[128] = {
79         /* 0x00 */ KEY_A,               /*  30 */
80         /* 0x01 */ KEY_S,               /*  31 */
81         /* 0x02 */ KEY_D,               /*  32 */
82         /* 0x03 */ KEY_F,               /*  33 */
83         /* 0x04 */ KEY_H,               /*  35 */
84         /* 0x05 */ KEY_G,               /*  34 */
85         /* 0x06 */ KEY_Z,               /*  44 */
86         /* 0x07 */ KEY_X,               /*  45 */
87         /* 0x08 */ KEY_C,               /*  46 */
88         /* 0x09 */ KEY_V,               /*  47 */
89         /* 0x0a */ KEY_102ND,           /*  86 */
90         /* 0x0b */ KEY_B,               /*  48 */
91         /* 0x0c */ KEY_Q,               /*  16 */
92         /* 0x0d */ KEY_W,               /*  17 */
93         /* 0x0e */ KEY_E,               /*  18 */
94         /* 0x0f */ KEY_R,               /*  19 */
95         /* 0x10 */ KEY_Y,               /*  21 */
96         /* 0x11 */ KEY_T,               /*  20 */
97         /* 0x12 */ KEY_1,               /*   2 */
98         /* 0x13 */ KEY_2,               /*   3 */
99         /* 0x14 */ KEY_3,               /*   4 */
100         /* 0x15 */ KEY_4,               /*   5 */
101         /* 0x16 */ KEY_6,               /*   7 */
102         /* 0x17 */ KEY_5,               /*   6 */
103         /* 0x18 */ KEY_EQUAL,           /*  13 */
104         /* 0x19 */ KEY_9,               /*  10 */
105         /* 0x1a */ KEY_7,               /*   8 */
106         /* 0x1b */ KEY_MINUS,           /*  12 */
107         /* 0x1c */ KEY_8,               /*   9 */
108         /* 0x1d */ KEY_0,               /*  11 */
109         /* 0x1e */ KEY_RIGHTBRACE,      /*  27 */
110         /* 0x1f */ KEY_O,               /*  24 */
111         /* 0x20 */ KEY_U,               /*  22 */
112         /* 0x21 */ KEY_LEFTBRACE,       /*  26 */
113         /* 0x22 */ KEY_I,               /*  23 */
114         /* 0x23 */ KEY_P,               /*  25 */
115         /* 0x24 */ KEY_ENTER,           /*  28 */
116         /* 0x25 */ KEY_L,               /*  38 */
117         /* 0x26 */ KEY_J,               /*  36 */
118         /* 0x27 */ KEY_APOSTROPHE,      /*  40 */
119         /* 0x28 */ KEY_K,               /*  37 */
120         /* 0x29 */ KEY_SEMICOLON,       /*  39 */
121         /* 0x2a */ KEY_BACKSLASH,       /*  43 */
122         /* 0x2b */ KEY_COMMA,           /*  51 */
123         /* 0x2c */ KEY_SLASH,           /*  53 */
124         /* 0x2d */ KEY_N,               /*  49 */
125         /* 0x2e */ KEY_M,               /*  50 */
126         /* 0x2f */ KEY_DOT,             /*  52 */
127         /* 0x30 */ KEY_TAB,             /*  15 */
128         /* 0x31 */ KEY_SPACE,           /*  57 */
129         /* 0x32 */ KEY_GRAVE,           /*  41 */
130         /* 0x33 */ KEY_BACKSPACE,       /*  14 */
131         /* 0x34 */ KEY_KPENTER,         /*  96 */
132         /* 0x35 */ KEY_ESC,             /*   1 */
133         /* 0x36 */ KEY_LEFTCTRL,        /*  29 */
134         /* 0x37 */ KEY_LEFTMETA,        /* 125 */
135         /* 0x38 */ KEY_LEFTSHIFT,       /*  42 */
136         /* 0x39 */ KEY_CAPSLOCK,        /*  58 */
137         /* 0x3a */ KEY_LEFTALT,         /*  56 */
138         /* 0x3b */ KEY_LEFT,            /* 105 */
139         /* 0x3c */ KEY_RIGHT,           /* 106 */
140         /* 0x3d */ KEY_DOWN,            /* 108 */
141         /* 0x3e */ KEY_UP,              /* 103 */
142         /* 0x3f */ KEY_FN,              /* 0x1d0 */
143         /* 0x40 */ 0,
144         /* 0x41 */ KEY_KPDOT,           /*  83 */
145         /* 0x42 */ 0,
146         /* 0x43 */ KEY_KPASTERISK,      /*  55 */
147         /* 0x44 */ 0,
148         /* 0x45 */ KEY_KPPLUS,          /*  78 */
149         /* 0x46 */ 0,
150         /* 0x47 */ KEY_NUMLOCK,         /*  69 */
151         /* 0x48 */ 0,
152         /* 0x49 */ 0,
153         /* 0x4a */ 0,
154         /* 0x4b */ KEY_KPSLASH,         /*  98 */
155         /* 0x4c */ KEY_KPENTER,         /*  96 */
156         /* 0x4d */ 0,
157         /* 0x4e */ KEY_KPMINUS,         /*  74 */
158         /* 0x4f */ 0,
159         /* 0x50 */ 0,
160         /* 0x51 */ KEY_KPEQUAL,         /* 117 */
161         /* 0x52 */ KEY_KP0,             /*  82 */
162         /* 0x53 */ KEY_KP1,             /*  79 */
163         /* 0x54 */ KEY_KP2,             /*  80 */
164         /* 0x55 */ KEY_KP3,             /*  81 */
165         /* 0x56 */ KEY_KP4,             /*  75 */
166         /* 0x57 */ KEY_KP5,             /*  76 */
167         /* 0x58 */ KEY_KP6,             /*  77 */
168         /* 0x59 */ KEY_KP7,             /*  71 */
169         /* 0x5a */ 0,
170         /* 0x5b */ KEY_KP8,             /*  72 */
171         /* 0x5c */ KEY_KP9,             /*  73 */
172         /* 0x5d */ KEY_YEN,             /* 124 */
173         /* 0x5e */ KEY_RO,              /*  89 */
174         /* 0x5f */ KEY_KPCOMMA,         /* 121 */
175         /* 0x60 */ KEY_F5,              /*  63 */
176         /* 0x61 */ KEY_F6,              /*  64 */
177         /* 0x62 */ KEY_F7,              /*  65 */
178         /* 0x63 */ KEY_F3,              /*  61 */
179         /* 0x64 */ KEY_F8,              /*  66 */
180         /* 0x65 */ KEY_F9,              /*  67 */
181         /* 0x66 */ KEY_HANJA,           /* 123 */
182         /* 0x67 */ KEY_F11,             /*  87 */
183         /* 0x68 */ KEY_HANGEUL,         /* 122 */
184         /* 0x69 */ KEY_SYSRQ,           /*  99 */
185         /* 0x6a */ 0,
186         /* 0x6b */ KEY_SCROLLLOCK,      /*  70 */
187         /* 0x6c */ 0,
188         /* 0x6d */ KEY_F10,             /*  68 */
189         /* 0x6e */ KEY_COMPOSE,         /* 127 */
190         /* 0x6f */ KEY_F12,             /*  88 */
191         /* 0x70 */ 0,
192         /* 0x71 */ KEY_PAUSE,           /* 119 */
193         /* 0x72 */ KEY_INSERT,          /* 110 */
194         /* 0x73 */ KEY_HOME,            /* 102 */
195         /* 0x74 */ KEY_PAGEUP,          /* 104 */
196         /* 0x75 */ KEY_DELETE,          /* 111 */
197         /* 0x76 */ KEY_F4,              /*  62 */
198         /* 0x77 */ KEY_END,             /* 107 */
199         /* 0x78 */ KEY_F2,              /*  60 */
200         /* 0x79 */ KEY_PAGEDOWN,        /* 109 */
201         /* 0x7a */ KEY_F1,              /*  59 */
202         /* 0x7b */ KEY_RIGHTSHIFT,      /*  54 */
203         /* 0x7c */ KEY_RIGHTALT,        /* 100 */
204         /* 0x7d */ KEY_RIGHTCTRL,       /*  97 */
205         /* 0x7e */ KEY_RIGHTMETA,       /* 126 */
206         /* 0x7f */ KEY_POWER,           /* 116 */
207 };
208
209 struct adbhid {
210         struct input_dev *input;
211         int id;
212         int default_id;
213         int original_handler_id;
214         int current_handler_id;
215         int mouse_kind;
216         u16 *keycode;
217         char name[64];
218         char phys[32];
219         int flags;
220 };
221
222 #define FLAG_FN_KEY_PRESSED     0x00000001
223 #define FLAG_POWER_FROM_FN      0x00000002
224 #define FLAG_EMU_FWDEL_DOWN     0x00000004
225 #define FLAG_CAPSLOCK_TRANSLATE 0x00000008
226 #define FLAG_CAPSLOCK_DOWN      0x00000010
227
228 static struct adbhid *adbhid[16];
229
230 static void adbhid_probe(void);
231
232 static void adbhid_input_keycode(int, int, int);
233
234 static void init_trackpad(int id);
235 static void init_trackball(int id);
236 static void init_turbomouse(int id);
237 static void init_microspeed(int id);
238 static void init_ms_a3(int id);
239
240 static struct adb_ids keyboard_ids;
241 static struct adb_ids mouse_ids;
242 static struct adb_ids buttons_ids;
243
244 /* Kind of keyboard, see Apple technote 1152  */
245 #define ADB_KEYBOARD_UNKNOWN    0
246 #define ADB_KEYBOARD_ANSI       0x0100
247 #define ADB_KEYBOARD_ISO        0x0200
248 #define ADB_KEYBOARD_JIS        0x0300
249
250 /* Kind of mouse  */
251 #define ADBMOUSE_STANDARD_100   0       /* Standard 100cpi mouse (handler 1) */
252 #define ADBMOUSE_STANDARD_200   1       /* Standard 200cpi mouse (handler 2) */
253 #define ADBMOUSE_EXTENDED       2       /* Apple Extended mouse (handler 4) */
254 #define ADBMOUSE_TRACKBALL      3       /* TrackBall (handler 4) */
255 #define ADBMOUSE_TRACKPAD       4       /* Apple's PowerBook trackpad (handler 4) */
256 #define ADBMOUSE_TURBOMOUSE5    5       /* Turbomouse 5 (previously req. mousehack) */
257 #define ADBMOUSE_MICROSPEED     6       /* Microspeed mouse (&trackball ?), MacPoint */
258 #define ADBMOUSE_TRACKBALLPRO   7       /* Trackball Pro (special buttons) */
259 #define ADBMOUSE_MS_A3          8       /* Mouse systems A3 trackball (handler 3) */
260 #define ADBMOUSE_MACALLY2       9       /* MacAlly 2-button mouse */
261
262 static void
263 adbhid_keyboard_input(unsigned char *data, int nb, int apoll)
264 {
265         int id = (data[0] >> 4) & 0x0f;
266
267         if (!adbhid[id]) {
268                 printk(KERN_ERR "ADB HID on ID %d not yet registered, packet %#02x, %#02x, %#02x, %#02x\n",
269                        id, data[0], data[1], data[2], data[3]);
270                 return;
271         }
272
273         /* first check this is from register 0 */
274         if (nb != 3 || (data[0] & 3) != KEYB_KEYREG)
275                 return;         /* ignore it */
276         adbhid_input_keycode(id, data[1], 0);
277         if (!(data[2] == 0xff || (data[2] == 0x7f && data[1] == 0x7f)))
278                 adbhid_input_keycode(id, data[2], 0);
279 }
280
281 static void
282 adbhid_input_keycode(int id, int scancode, int repeat)
283 {
284         struct adbhid *ahid = adbhid[id];
285         int keycode, up_flag, key;
286
287         keycode = scancode & 0x7f;
288         up_flag = scancode & 0x80;
289
290         if (restore_capslock_events) {
291                 if (keycode == ADB_KEY_CAPSLOCK && !up_flag) {
292                         /* Key pressed, turning on the CapsLock LED.
293                          * The next 0xff will be interpreted as a release. */
294                         ahid->flags |= FLAG_CAPSLOCK_TRANSLATE
295                                         | FLAG_CAPSLOCK_DOWN;
296                 } else if (scancode == 0xff) {
297                         /* Scancode 0xff usually signifies that the capslock
298                          * key was either pressed or released. */
299                         if (ahid->flags & FLAG_CAPSLOCK_TRANSLATE) {
300                                 keycode = ADB_KEY_CAPSLOCK;
301                                 if (ahid->flags & FLAG_CAPSLOCK_DOWN) {
302                                         /* Key released */
303                                         up_flag = 1;
304                                         ahid->flags &= ~FLAG_CAPSLOCK_DOWN;
305                                 } else {
306                                         /* Key pressed */
307                                         up_flag = 0;
308                                         ahid->flags &= ~FLAG_CAPSLOCK_TRANSLATE;
309                                 }
310                         } else {
311                                 printk(KERN_INFO "Spurious caps lock event "
312                                                 "(scancode 0xff).");
313                         }
314                 }
315         }
316
317         switch (keycode) {
318         case ADB_KEY_CAPSLOCK:
319                 if (!restore_capslock_events) {
320                         /* Generate down/up events for CapsLock everytime. */
321                         input_report_key(ahid->input, KEY_CAPSLOCK, 1);
322                         input_sync(ahid->input);
323                         input_report_key(ahid->input, KEY_CAPSLOCK, 0);
324                         input_sync(ahid->input);
325                         return;
326                 }
327                 break;
328 #ifdef CONFIG_PPC_PMAC
329         case ADB_KEY_POWER_OLD: /* Power key on PBook 3400 needs remapping */
330                 switch(pmac_call_feature(PMAC_FTR_GET_MB_INFO,
331                         NULL, PMAC_MB_INFO_MODEL, 0)) {
332                 case PMAC_TYPE_COMET:
333                 case PMAC_TYPE_HOOPER:
334                 case PMAC_TYPE_KANGA:
335                         keycode = ADB_KEY_POWER;
336                 }
337                 break;
338         case ADB_KEY_POWER:
339                 /* Fn + Command will produce a bogus "power" keycode */
340                 if (ahid->flags & FLAG_FN_KEY_PRESSED) {
341                         keycode = ADB_KEY_CMD;
342                         if (up_flag)
343                                 ahid->flags &= ~FLAG_POWER_FROM_FN;
344                         else
345                                 ahid->flags |= FLAG_POWER_FROM_FN;
346                 } else if (ahid->flags & FLAG_POWER_FROM_FN) {
347                         keycode = ADB_KEY_CMD;
348                         ahid->flags &= ~FLAG_POWER_FROM_FN;
349                 }
350                 break;
351         case ADB_KEY_FN:
352                 /* Keep track of the Fn key state */
353                 if (up_flag) {
354                         ahid->flags &= ~FLAG_FN_KEY_PRESSED;
355                         /* Emulate Fn+delete = forward delete */
356                         if (ahid->flags & FLAG_EMU_FWDEL_DOWN) {
357                                 ahid->flags &= ~FLAG_EMU_FWDEL_DOWN;
358                                 keycode = ADB_KEY_FWDEL;
359                                 break;
360                         }
361                 } else
362                         ahid->flags |= FLAG_FN_KEY_PRESSED;
363                 break;
364         case ADB_KEY_DEL:
365                 /* Emulate Fn+delete = forward delete */
366                 if (ahid->flags & FLAG_FN_KEY_PRESSED) {
367                         keycode = ADB_KEY_FWDEL;
368                         if (up_flag)
369                                 ahid->flags &= ~FLAG_EMU_FWDEL_DOWN;
370                         else
371                                 ahid->flags |= FLAG_EMU_FWDEL_DOWN;
372                 }
373                 break;
374 #endif /* CONFIG_PPC_PMAC */
375         }
376
377         key = adbhid[id]->keycode[keycode];
378         if (key) {
379                 input_report_key(adbhid[id]->input, key, !up_flag);
380                 input_sync(adbhid[id]->input);
381         } else
382                 printk(KERN_INFO "Unhandled ADB key (scancode %#02x) %s.\n", keycode,
383                        up_flag ? "released" : "pressed");
384
385 }
386
387 static void
388 adbhid_mouse_input(unsigned char *data, int nb, int autopoll)
389 {
390         int id = (data[0] >> 4) & 0x0f;
391
392         if (!adbhid[id]) {
393                 printk(KERN_ERR "ADB HID on ID %d not yet registered\n", id);
394                 return;
395         }
396
397   /*
398     Handler 1 -- 100cpi original Apple mouse protocol.
399     Handler 2 -- 200cpi original Apple mouse protocol.
400
401     For Apple's standard one-button mouse protocol the data array will
402     contain the following values:
403
404                 BITS    COMMENTS
405     data[0] = dddd 1100 ADB command: Talk, register 0, for device dddd.
406     data[1] = bxxx xxxx First button and x-axis motion.
407     data[2] = byyy yyyy Second button and y-axis motion.
408
409     Handler 4 -- Apple Extended mouse protocol.
410
411     For Apple's 3-button mouse protocol the data array will contain the
412     following values:
413
414                 BITS    COMMENTS
415     data[0] = dddd 1100 ADB command: Talk, register 0, for device dddd.
416     data[1] = bxxx xxxx Left button and x-axis motion.
417     data[2] = byyy yyyy Second button and y-axis motion.
418     data[3] = byyy bxxx Third button and fourth button.  Y is additional
419               high bits of y-axis motion.  XY is additional
420               high bits of x-axis motion.
421
422     MacAlly 2-button mouse protocol.
423
424     For MacAlly 2-button mouse protocol the data array will contain the
425     following values:
426
427                 BITS    COMMENTS
428     data[0] = dddd 1100 ADB command: Talk, register 0, for device dddd.
429     data[1] = bxxx xxxx Left button and x-axis motion.
430     data[2] = byyy yyyy Right button and y-axis motion.
431     data[3] = ???? ???? unknown
432     data[4] = ???? ???? unknown
433
434   */
435
436         /* If it's a trackpad, we alias the second button to the first.
437            NOTE: Apple sends an ADB flush command to the trackpad when
438                  the first (the real) button is released. We could do
439                  this here using async flush requests.
440         */
441         switch (adbhid[id]->mouse_kind)
442         {
443             case ADBMOUSE_TRACKPAD:
444                 data[1] = (data[1] & 0x7f) | ((data[1] & data[2]) & 0x80);
445                 data[2] = data[2] | 0x80;
446                 break;
447             case ADBMOUSE_MICROSPEED:
448                 data[1] = (data[1] & 0x7f) | ((data[3] & 0x01) << 7);
449                 data[2] = (data[2] & 0x7f) | ((data[3] & 0x02) << 6);
450                 data[3] = (data[3] & 0x77) | ((data[3] & 0x04) << 5)
451                         | (data[3] & 0x08);
452                 break;
453             case ADBMOUSE_TRACKBALLPRO:
454                 data[1] = (data[1] & 0x7f) | (((data[3] & 0x04) << 5)
455                         & ((data[3] & 0x08) << 4));
456                 data[2] = (data[2] & 0x7f) | ((data[3] & 0x01) << 7);
457                 data[3] = (data[3] & 0x77) | ((data[3] & 0x02) << 6);
458                 break;
459             case ADBMOUSE_MS_A3:
460                 data[1] = (data[1] & 0x7f) | ((data[3] & 0x01) << 7);
461                 data[2] = (data[2] & 0x7f) | ((data[3] & 0x02) << 6);
462                 data[3] = ((data[3] & 0x04) << 5);
463                 break;
464             case ADBMOUSE_MACALLY2:
465                 data[3] = (data[2] & 0x80) ? 0x80 : 0x00;
466                 data[2] |= 0x80;  /* Right button is mapped as button 3 */
467                 nb=4;
468                 break;
469         }
470
471         input_report_key(adbhid[id]->input, BTN_LEFT,   !((data[1] >> 7) & 1));
472         input_report_key(adbhid[id]->input, BTN_MIDDLE, !((data[2] >> 7) & 1));
473
474         if (nb >= 4 && adbhid[id]->mouse_kind != ADBMOUSE_TRACKPAD)
475                 input_report_key(adbhid[id]->input, BTN_RIGHT,  !((data[3] >> 7) & 1));
476
477         input_report_rel(adbhid[id]->input, REL_X,
478                          ((data[2]&0x7f) < 64 ? (data[2]&0x7f) : (data[2]&0x7f)-128 ));
479         input_report_rel(adbhid[id]->input, REL_Y,
480                          ((data[1]&0x7f) < 64 ? (data[1]&0x7f) : (data[1]&0x7f)-128 ));
481
482         input_sync(adbhid[id]->input);
483 }
484
485 static void
486 adbhid_buttons_input(unsigned char *data, int nb, int autopoll)
487 {
488         int id = (data[0] >> 4) & 0x0f;
489
490         if (!adbhid[id]) {
491                 printk(KERN_ERR "ADB HID on ID %d not yet registered\n", id);
492                 return;
493         }
494
495         switch (adbhid[id]->original_handler_id) {
496         default:
497         case 0x02: /* Adjustable keyboard button device */
498           {
499                 int down = (data[1] == (data[1] & 0xf));
500
501                 switch (data[1] & 0x0f) {
502                 case 0x0:       /* microphone */
503                         input_report_key(adbhid[id]->input, KEY_SOUND, down);
504                         break;
505
506                 case 0x1:       /* mute */
507                         input_report_key(adbhid[id]->input, KEY_MUTE, down);
508                         break;
509
510                 case 0x2:       /* volume decrease */
511                         input_report_key(adbhid[id]->input, KEY_VOLUMEDOWN, down);
512                         break;
513
514                 case 0x3:       /* volume increase */
515                         input_report_key(adbhid[id]->input, KEY_VOLUMEUP, down);
516                         break;
517
518                 default:
519                         printk(KERN_INFO "Unhandled ADB_MISC event %02x, %02x, %02x, %02x\n",
520                                data[0], data[1], data[2], data[3]);
521                         break;
522                 }
523           }
524           break;
525
526         case 0x1f: /* Powerbook button device */
527           {
528                 int down = (data[1] == (data[1] & 0xf));
529
530                 /*
531                  * XXX: Where is the contrast control for the passive?
532                  *  -- Cort
533                  */
534
535                 switch (data[1] & 0x0f) {
536                 case 0x8:       /* mute */
537                         input_report_key(adbhid[id]->input, KEY_MUTE, down);
538                         break;
539
540                 case 0x7:       /* volume decrease */
541                         input_report_key(adbhid[id]->input, KEY_VOLUMEDOWN, down);
542                         break;
543
544                 case 0x6:       /* volume increase */
545                         input_report_key(adbhid[id]->input, KEY_VOLUMEUP, down);
546                         break;
547
548                 case 0xb:       /* eject */
549                         input_report_key(adbhid[id]->input, KEY_EJECTCD, down);
550                         break;
551
552                 case 0xa:       /* brightness decrease */
553 #ifdef CONFIG_PMAC_BACKLIGHT
554                         if (down)
555                                 pmac_backlight_key_down();
556 #endif
557                         input_report_key(adbhid[id]->input, KEY_BRIGHTNESSDOWN, down);
558                         break;
559
560                 case 0x9:       /* brightness increase */
561 #ifdef CONFIG_PMAC_BACKLIGHT
562                         if (down)
563                                 pmac_backlight_key_up();
564 #endif
565                         input_report_key(adbhid[id]->input, KEY_BRIGHTNESSUP, down);
566                         break;
567
568                 case 0xc:       /* videomode switch */
569                         input_report_key(adbhid[id]->input, KEY_SWITCHVIDEOMODE, down);
570                         break;
571
572                 case 0xd:       /* keyboard illumination toggle */
573                         input_report_key(adbhid[id]->input, KEY_KBDILLUMTOGGLE, down);
574                         break;
575
576                 case 0xe:       /* keyboard illumination decrease */
577                         input_report_key(adbhid[id]->input, KEY_KBDILLUMDOWN, down);
578                         break;
579
580                 case 0xf:
581                         switch (data[1]) {
582                         case 0x8f:
583                         case 0x0f:
584                                 /* keyboard illumination increase */
585                                 input_report_key(adbhid[id]->input, KEY_KBDILLUMUP, down);
586                                 break;
587
588                         case 0x7f:
589                         case 0xff:
590                                 /* keypad overlay toogle */
591                                 break;
592
593                         default:
594                                 printk(KERN_INFO "Unhandled ADB_MISC event %02x, %02x, %02x, %02x\n",
595                                        data[0], data[1], data[2], data[3]);
596                                 break;
597                         }
598                         break;
599                 default:
600                         printk(KERN_INFO "Unhandled ADB_MISC event %02x, %02x, %02x, %02x\n",
601                                data[0], data[1], data[2], data[3]);
602                         break;
603                 }
604           }
605           break;
606         }
607
608         input_sync(adbhid[id]->input);
609 }
610
611 static struct adb_request led_request;
612 static int leds_pending[16];
613 static int leds_req_pending;
614 static int pending_devs[16];
615 static int pending_led_start;
616 static int pending_led_end;
617 static DEFINE_SPINLOCK(leds_lock);
618
619 static void leds_done(struct adb_request *req)
620 {
621         int leds = 0, device = 0, pending = 0;
622         unsigned long flags;
623
624         spin_lock_irqsave(&leds_lock, flags);
625
626         if (pending_led_start != pending_led_end) {
627                 device = pending_devs[pending_led_start];
628                 leds = leds_pending[device] & 0xff;
629                 leds_pending[device] = 0;
630                 pending_led_start++;
631                 pending_led_start = (pending_led_start < 16) ? pending_led_start : 0;
632                 pending = leds_req_pending;
633         } else
634                 leds_req_pending = 0;
635         spin_unlock_irqrestore(&leds_lock, flags);
636         if (pending)
637                 adb_request(&led_request, leds_done, 0, 3,
638                             ADB_WRITEREG(device, KEYB_LEDREG), 0xff, ~leds);
639 }
640
641 static void real_leds(unsigned char leds, int device)
642 {
643         unsigned long flags;
644
645         spin_lock_irqsave(&leds_lock, flags);
646         if (!leds_req_pending) {
647                 leds_req_pending = 1;
648                 spin_unlock_irqrestore(&leds_lock, flags);             
649                 adb_request(&led_request, leds_done, 0, 3,
650                             ADB_WRITEREG(device, KEYB_LEDREG), 0xff, ~leds);
651                 return;
652         } else {
653                 if (!(leds_pending[device] & 0x100)) {
654                         pending_devs[pending_led_end] = device;
655                         pending_led_end++;
656                         pending_led_end = (pending_led_end < 16) ? pending_led_end : 0;
657                 }
658                 leds_pending[device] = leds | 0x100;
659         }
660         spin_unlock_irqrestore(&leds_lock, flags);             
661 }
662
663 /*
664  * Event callback from the input module. Events that change the state of
665  * the hardware are processed here.
666  */
667 static int adbhid_kbd_event(struct input_dev *dev, unsigned int type, unsigned int code, int value)
668 {
669         struct adbhid *adbhid = input_get_drvdata(dev);
670         unsigned char leds;
671
672         switch (type) {
673         case EV_LED:
674                 leds =  (test_bit(LED_SCROLLL, dev->led) ? 4 : 0) |
675                         (test_bit(LED_NUML,    dev->led) ? 1 : 0) |
676                         (test_bit(LED_CAPSL,   dev->led) ? 2 : 0);
677                 real_leds(leds, adbhid->id);
678                 return 0;
679         }
680
681         return -1;
682 }
683
684 static int
685 adb_message_handler(struct notifier_block *this, unsigned long code, void *x)
686 {
687         switch (code) {
688         case ADB_MSG_PRE_RESET:
689         case ADB_MSG_POWERDOWN:
690                 /* Stop the repeat timer. Autopoll is already off at this point */
691                 {
692                         int i;
693                         for (i = 1; i < 16; i++) {
694                                 if (adbhid[i])
695                                         del_timer_sync(&adbhid[i]->input->timer);
696                         }
697                 }
698
699                 /* Stop pending led requests */
700                 while(leds_req_pending)
701                         adb_poll();
702                 break;
703
704         case ADB_MSG_POST_RESET:
705                 adbhid_probe();
706                 break;
707         }
708         return NOTIFY_DONE;
709 }
710
711 static int
712 adbhid_input_register(int id, int default_id, int original_handler_id,
713                       int current_handler_id, int mouse_kind)
714 {
715         struct adbhid *hid;
716         struct input_dev *input_dev;
717         int err;
718         int i;
719
720         if (adbhid[id]) {
721                 printk(KERN_ERR "Trying to reregister ADB HID on ID %d\n", id);
722                 return -EEXIST;
723         }
724
725         adbhid[id] = hid = kzalloc(sizeof(struct adbhid), GFP_KERNEL);
726         input_dev = input_allocate_device();
727         if (!hid || !input_dev) {
728                 err = -ENOMEM;
729                 goto fail;
730         }
731
732         sprintf(hid->phys, "adb%d:%d.%02x/input", id, default_id, original_handler_id);
733
734         hid->input = input_dev;
735         hid->id = default_id;
736         hid->original_handler_id = original_handler_id;
737         hid->current_handler_id = current_handler_id;
738         hid->mouse_kind = mouse_kind;
739         hid->flags = 0;
740         input_set_drvdata(input_dev, hid);
741         input_dev->name = hid->name;
742         input_dev->phys = hid->phys;
743         input_dev->id.bustype = BUS_ADB;
744         input_dev->id.vendor = 0x0001;
745         input_dev->id.product = (id << 12) | (default_id << 8) | original_handler_id;
746         input_dev->id.version = 0x0100;
747
748         switch (default_id) {
749         case ADB_KEYBOARD:
750                 hid->keycode = kmalloc(sizeof(adb_to_linux_keycodes), GFP_KERNEL);
751                 if (!hid->keycode) {
752                         err = -ENOMEM;
753                         goto fail;
754                 }
755
756                 sprintf(hid->name, "ADB keyboard");
757
758                 memcpy(hid->keycode, adb_to_linux_keycodes, sizeof(adb_to_linux_keycodes));
759
760                 printk(KERN_INFO "Detected ADB keyboard, type ");
761                 switch (original_handler_id) {
762                 default:
763                         printk("<unknown>.\n");
764                         input_dev->id.version = ADB_KEYBOARD_UNKNOWN;
765                         break;
766
767                 case 0x01: case 0x02: case 0x03: case 0x06: case 0x08:
768                 case 0x0C: case 0x10: case 0x18: case 0x1B: case 0x1C:
769                 case 0xC0: case 0xC3: case 0xC6:
770                         printk("ANSI.\n");
771                         input_dev->id.version = ADB_KEYBOARD_ANSI;
772                         break;
773
774                 case 0x04: case 0x05: case 0x07: case 0x09: case 0x0D:
775                 case 0x11: case 0x14: case 0x19: case 0x1D: case 0xC1:
776                 case 0xC4: case 0xC7:
777                         printk("ISO, swapping keys.\n");
778                         input_dev->id.version = ADB_KEYBOARD_ISO;
779                         i = hid->keycode[10];
780                         hid->keycode[10] = hid->keycode[50];
781                         hid->keycode[50] = i;
782                         break;
783
784                 case 0x12: case 0x15: case 0x16: case 0x17: case 0x1A:
785                 case 0x1E: case 0xC2: case 0xC5: case 0xC8: case 0xC9:
786                         printk("JIS.\n");
787                         input_dev->id.version = ADB_KEYBOARD_JIS;
788                         break;
789                 }
790
791                 for (i = 0; i < 128; i++)
792                         if (hid->keycode[i])
793                                 set_bit(hid->keycode[i], input_dev->keybit);
794
795                 input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_LED) |
796                         BIT_MASK(EV_REP);
797                 input_dev->ledbit[0] = BIT_MASK(LED_SCROLLL) |
798                         BIT_MASK(LED_CAPSL) | BIT_MASK(LED_NUML);
799                 input_dev->event = adbhid_kbd_event;
800                 input_dev->keycodemax = KEY_FN;
801                 input_dev->keycodesize = sizeof(hid->keycode[0]);
802                 break;
803
804         case ADB_MOUSE:
805                 sprintf(hid->name, "ADB mouse");
806
807                 input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL);
808                 input_dev->keybit[BIT_WORD(BTN_MOUSE)] = BIT_MASK(BTN_LEFT) |
809                         BIT_MASK(BTN_MIDDLE) | BIT_MASK(BTN_RIGHT);
810                 input_dev->relbit[0] = BIT_MASK(REL_X) | BIT_MASK(REL_Y);
811                 break;
812
813         case ADB_MISC:
814                 switch (original_handler_id) {
815                 case 0x02: /* Adjustable keyboard button device */
816                         sprintf(hid->name, "ADB adjustable keyboard buttons");
817                         input_dev->evbit[0] = BIT_MASK(EV_KEY) |
818                                 BIT_MASK(EV_REP);
819                         set_bit(KEY_SOUND, input_dev->keybit);
820                         set_bit(KEY_MUTE, input_dev->keybit);
821                         set_bit(KEY_VOLUMEUP, input_dev->keybit);
822                         set_bit(KEY_VOLUMEDOWN, input_dev->keybit);
823                         break;
824                 case 0x1f: /* Powerbook button device */
825                         sprintf(hid->name, "ADB Powerbook buttons");
826                         input_dev->evbit[0] = BIT_MASK(EV_KEY) |
827                                 BIT_MASK(EV_REP);
828                         set_bit(KEY_MUTE, input_dev->keybit);
829                         set_bit(KEY_VOLUMEUP, input_dev->keybit);
830                         set_bit(KEY_VOLUMEDOWN, input_dev->keybit);
831                         set_bit(KEY_BRIGHTNESSUP, input_dev->keybit);
832                         set_bit(KEY_BRIGHTNESSDOWN, input_dev->keybit);
833                         set_bit(KEY_EJECTCD, input_dev->keybit);
834                         set_bit(KEY_SWITCHVIDEOMODE, input_dev->keybit);
835                         set_bit(KEY_KBDILLUMTOGGLE, input_dev->keybit);
836                         set_bit(KEY_KBDILLUMDOWN, input_dev->keybit);
837                         set_bit(KEY_KBDILLUMUP, input_dev->keybit);
838                         break;
839                 }
840                 if (hid->name[0])
841                         break;
842                 /* else fall through */
843
844         default:
845                 printk(KERN_INFO "Trying to register unknown ADB device to input layer.\n");
846                 err = -ENODEV;
847                 goto fail;
848         }
849
850         input_dev->keycode = hid->keycode;
851
852         err = input_register_device(input_dev);
853         if (err)
854                 goto fail;
855
856         if (default_id == ADB_KEYBOARD) {
857                 /* HACK WARNING!! This should go away as soon there is an utility
858                  * to control that for event devices.
859                  */
860                 input_dev->rep[REP_DELAY] = 500;   /* input layer default: 250 */
861                 input_dev->rep[REP_PERIOD] = 66; /* input layer default: 33 */
862         }
863
864         return 0;
865
866  fail:  input_free_device(input_dev);
867         if (hid) {
868                 kfree(hid->keycode);
869                 kfree(hid);
870         }
871         adbhid[id] = NULL;
872         return err;
873 }
874
875 static void adbhid_input_unregister(int id)
876 {
877         input_unregister_device(adbhid[id]->input);
878         kfree(adbhid[id]->keycode);
879         kfree(adbhid[id]);
880         adbhid[id] = NULL;
881 }
882
883
884 static u16
885 adbhid_input_reregister(int id, int default_id, int org_handler_id,
886                         int cur_handler_id, int mk)
887 {
888         if (adbhid[id]) {
889                 if (adbhid[id]->input->id.product !=
890                     ((id << 12)|(default_id << 8)|org_handler_id)) {
891                         adbhid_input_unregister(id);
892                         adbhid_input_register(id, default_id, org_handler_id,
893                                               cur_handler_id, mk);
894                 }
895         } else
896                 adbhid_input_register(id, default_id, org_handler_id,
897                                       cur_handler_id, mk);
898         return 1<<id;
899 }
900
901 static void
902 adbhid_input_devcleanup(u16 exist)
903 {
904         int i;
905         for(i=1; i<16; i++)
906                 if (adbhid[i] && !(exist&(1<<i)))
907                         adbhid_input_unregister(i);
908 }
909
910 static void
911 adbhid_probe(void)
912 {
913         struct adb_request req;
914         int i, default_id, org_handler_id, cur_handler_id;
915         u16 reg = 0;
916
917         adb_register(ADB_MOUSE, 0, &mouse_ids, adbhid_mouse_input);
918         adb_register(ADB_KEYBOARD, 0, &keyboard_ids, adbhid_keyboard_input);
919         adb_register(ADB_MISC, 0, &buttons_ids, adbhid_buttons_input);
920
921         for (i = 0; i < keyboard_ids.nids; i++) {
922                 int id = keyboard_ids.id[i];
923
924                 adb_get_infos(id, &default_id, &org_handler_id);
925
926                 /* turn off all leds */
927                 adb_request(&req, NULL, ADBREQ_SYNC, 3,
928                             ADB_WRITEREG(id, KEYB_LEDREG), 0xff, 0xff);
929
930                 /* Enable full feature set of the keyboard
931                    ->get it to send separate codes for left and right shift,
932                    control, option keys */
933 #if 0           /* handler 5 doesn't send separate codes for R modifiers */
934                 if (adb_try_handler_change(id, 5))
935                         printk("ADB keyboard at %d, handler set to 5\n", id);
936                 else
937 #endif
938                 if (adb_try_handler_change(id, 3))
939                         printk("ADB keyboard at %d, handler set to 3\n", id);
940                 else
941                         printk("ADB keyboard at %d, handler 1\n", id);
942
943                 adb_get_infos(id, &default_id, &cur_handler_id);
944                 reg |= adbhid_input_reregister(id, default_id, org_handler_id,
945                                                cur_handler_id, 0);
946         }
947
948         for (i = 0; i < buttons_ids.nids; i++) {
949                 int id = buttons_ids.id[i];
950
951                 adb_get_infos(id, &default_id, &org_handler_id);
952                 reg |= adbhid_input_reregister(id, default_id, org_handler_id,
953                                                org_handler_id, 0);
954         }
955
956         /* Try to switch all mice to handler 4, or 2 for three-button
957            mode and full resolution. */
958         for (i = 0; i < mouse_ids.nids; i++) {
959                 int id = mouse_ids.id[i];
960                 int mouse_kind;
961
962                 adb_get_infos(id, &default_id, &org_handler_id);
963
964                 if (adb_try_handler_change(id, 4)) {
965                         printk("ADB mouse at %d, handler set to 4", id);
966                         mouse_kind = ADBMOUSE_EXTENDED;
967                 }
968                 else if (adb_try_handler_change(id, 0x2F)) {
969                         printk("ADB mouse at %d, handler set to 0x2F", id);
970                         mouse_kind = ADBMOUSE_MICROSPEED;
971                 }
972                 else if (adb_try_handler_change(id, 0x42)) {
973                         printk("ADB mouse at %d, handler set to 0x42", id);
974                         mouse_kind = ADBMOUSE_TRACKBALLPRO;
975                 }
976                 else if (adb_try_handler_change(id, 0x66)) {
977                         printk("ADB mouse at %d, handler set to 0x66", id);
978                         mouse_kind = ADBMOUSE_MICROSPEED;
979                 }
980                 else if (adb_try_handler_change(id, 0x5F)) {
981                         printk("ADB mouse at %d, handler set to 0x5F", id);
982                         mouse_kind = ADBMOUSE_MICROSPEED;
983                 }
984                 else if (adb_try_handler_change(id, 3)) {
985                         printk("ADB mouse at %d, handler set to 3", id);
986                         mouse_kind = ADBMOUSE_MS_A3;
987                 }
988                 else if (adb_try_handler_change(id, 2)) {
989                         printk("ADB mouse at %d, handler set to 2", id);
990                         mouse_kind = ADBMOUSE_STANDARD_200;
991                 }
992                 else {
993                         printk("ADB mouse at %d, handler 1", id);
994                         mouse_kind = ADBMOUSE_STANDARD_100;
995                 }
996
997                 if ((mouse_kind == ADBMOUSE_TRACKBALLPRO)
998                     || (mouse_kind == ADBMOUSE_MICROSPEED)) {
999                         init_microspeed(id);
1000                 } else if (mouse_kind == ADBMOUSE_MS_A3) {
1001                         init_ms_a3(id);
1002                 } else if (mouse_kind ==  ADBMOUSE_EXTENDED) {
1003                         /*
1004                          * Register 1 is usually used for device
1005                          * identification.  Here, we try to identify
1006                          * a known device and call the appropriate
1007                          * init function.
1008                          */
1009                         adb_request(&req, NULL, ADBREQ_SYNC | ADBREQ_REPLY, 1,
1010                                     ADB_READREG(id, 1));
1011
1012                         if ((req.reply_len) &&
1013                             (req.reply[1] == 0x9a) && ((req.reply[2] == 0x21)
1014                                 || (req.reply[2] == 0x20))) {
1015                                 mouse_kind = ADBMOUSE_TRACKBALL;
1016                                 init_trackball(id);
1017                         }
1018                         else if ((req.reply_len >= 4) &&
1019                             (req.reply[1] == 0x74) && (req.reply[2] == 0x70) &&
1020                             (req.reply[3] == 0x61) && (req.reply[4] == 0x64)) {
1021                                 mouse_kind = ADBMOUSE_TRACKPAD;
1022                                 init_trackpad(id);
1023                         }
1024                         else if ((req.reply_len >= 4) &&
1025                             (req.reply[1] == 0x4b) && (req.reply[2] == 0x4d) &&
1026                             (req.reply[3] == 0x4c) && (req.reply[4] == 0x31)) {
1027                                 mouse_kind = ADBMOUSE_TURBOMOUSE5;
1028                                 init_turbomouse(id);
1029                         }
1030                         else if ((req.reply_len == 9) &&
1031                             (req.reply[1] == 0x4b) && (req.reply[2] == 0x4f) &&
1032                             (req.reply[3] == 0x49) && (req.reply[4] == 0x54)) {
1033                                 if (adb_try_handler_change(id, 0x42)) {
1034                                         printk("\nADB MacAlly 2-button mouse at %d, handler set to 0x42", id);
1035                                         mouse_kind = ADBMOUSE_MACALLY2;
1036                                 }
1037                         }
1038                 }
1039                 printk("\n");
1040
1041                 adb_get_infos(id, &default_id, &cur_handler_id);
1042                 reg |= adbhid_input_reregister(id, default_id, org_handler_id,
1043                                                cur_handler_id, mouse_kind);
1044         }
1045         adbhid_input_devcleanup(reg);
1046 }
1047
1048 static void 
1049 init_trackpad(int id)
1050 {
1051         struct adb_request req;
1052         unsigned char r1_buffer[8];
1053
1054         printk(" (trackpad)");
1055
1056         adb_request(&req, NULL, ADBREQ_SYNC | ADBREQ_REPLY, 1,
1057                     ADB_READREG(id,1));
1058         if (req.reply_len < 8)
1059             printk("bad length for reg. 1\n");
1060         else
1061         {
1062             memcpy(r1_buffer, &req.reply[1], 8);
1063
1064             adb_request(&req, NULL, ADBREQ_SYNC, 9,
1065                 ADB_WRITEREG(id,1),
1066                     r1_buffer[0],
1067                     r1_buffer[1],
1068                     r1_buffer[2],
1069                     r1_buffer[3],
1070                     r1_buffer[4],
1071                     r1_buffer[5],
1072                     0x0d,
1073                     r1_buffer[7]);
1074
1075             adb_request(&req, NULL, ADBREQ_SYNC, 9,
1076                 ADB_WRITEREG(id,2),
1077                     0x99,
1078                     0x94,
1079                     0x19,
1080                     0xff,
1081                     0xb2,
1082                     0x8a,
1083                     0x1b,
1084                     0x50);
1085
1086             adb_request(&req, NULL, ADBREQ_SYNC, 9,
1087                 ADB_WRITEREG(id,1),
1088                     r1_buffer[0],
1089                     r1_buffer[1],
1090                     r1_buffer[2],
1091                     r1_buffer[3],
1092                     r1_buffer[4],
1093                     r1_buffer[5],
1094                     0x03, /*r1_buffer[6],*/
1095                     r1_buffer[7]);
1096
1097             /* Without this flush, the trackpad may be locked up */
1098             adb_request(&req, NULL, ADBREQ_SYNC, 1, ADB_FLUSH(id));
1099         }
1100 }
1101
1102 static void 
1103 init_trackball(int id)
1104 {
1105         struct adb_request req;
1106
1107         printk(" (trackman/mouseman)");
1108
1109         adb_request(&req, NULL, ADBREQ_SYNC, 3,
1110         ADB_WRITEREG(id,1), 00,0x81);
1111
1112         adb_request(&req, NULL, ADBREQ_SYNC, 3,
1113         ADB_WRITEREG(id,1), 01,0x81);
1114
1115         adb_request(&req, NULL, ADBREQ_SYNC, 3,
1116         ADB_WRITEREG(id,1), 02,0x81);
1117
1118         adb_request(&req, NULL, ADBREQ_SYNC, 3,
1119         ADB_WRITEREG(id,1), 03,0x38);
1120
1121         adb_request(&req, NULL, ADBREQ_SYNC, 3,
1122         ADB_WRITEREG(id,1), 00,0x81);
1123
1124         adb_request(&req, NULL, ADBREQ_SYNC, 3,
1125         ADB_WRITEREG(id,1), 01,0x81);
1126
1127         adb_request(&req, NULL, ADBREQ_SYNC, 3,
1128         ADB_WRITEREG(id,1), 02,0x81);
1129
1130         adb_request(&req, NULL, ADBREQ_SYNC, 3,
1131         ADB_WRITEREG(id,1), 03,0x38);
1132 }
1133
1134 static void
1135 init_turbomouse(int id)
1136 {
1137         struct adb_request req;
1138
1139         printk(" (TurboMouse 5)");
1140
1141         adb_request(&req, NULL, ADBREQ_SYNC, 1, ADB_FLUSH(id));
1142
1143         adb_request(&req, NULL, ADBREQ_SYNC, 1, ADB_FLUSH(3));
1144
1145         adb_request(&req, NULL, ADBREQ_SYNC, 9,
1146         ADB_WRITEREG(3,2),
1147             0xe7,
1148             0x8c,
1149             0,
1150             0,
1151             0,
1152             0xff,
1153             0xff,
1154             0x94);
1155
1156         adb_request(&req, NULL, ADBREQ_SYNC, 1, ADB_FLUSH(3));
1157
1158         adb_request(&req, NULL, ADBREQ_SYNC, 9,
1159         ADB_WRITEREG(3,2),
1160             0xa5,
1161             0x14,
1162             0,
1163             0,
1164             0x69,
1165             0xff,
1166             0xff,
1167             0x27);
1168 }
1169
1170 static void
1171 init_microspeed(int id)
1172 {
1173         struct adb_request req;
1174
1175         printk(" (Microspeed/MacPoint or compatible)");
1176
1177         adb_request(&req, NULL, ADBREQ_SYNC, 1, ADB_FLUSH(id));
1178
1179         /* This will initialize mice using the Microspeed, MacPoint and
1180            other compatible firmware. Bit 12 enables extended protocol.
1181            
1182            Register 1 Listen (4 Bytes)
1183             0 -  3     Button is mouse (set also for double clicking!!!)
1184             4 -  7     Button is locking (affects change speed also)
1185             8 - 11     Button changes speed
1186            12          1 = Extended mouse mode, 0 = normal mouse mode
1187            13 - 15     unused 0
1188            16 - 23     normal speed
1189            24 - 31     changed speed
1190
1191        Register 1 talk holds version and product identification information.
1192        Register 1 Talk (4 Bytes):
1193             0 -  7     Product code
1194             8 - 23     undefined, reserved
1195            24 - 31     Version number
1196         
1197        Speed 0 is max. 1 to 255 set speed in increments of 1/256 of max.
1198  */
1199         adb_request(&req, NULL, ADBREQ_SYNC, 5,
1200         ADB_WRITEREG(id,1),
1201             0x20,       /* alt speed = 0x20 (rather slow) */
1202             0x00,       /* norm speed = 0x00 (fastest) */
1203             0x10,       /* extended protocol, no speed change */
1204             0x07);      /* all buttons enabled as mouse buttons, no locking */
1205
1206
1207         adb_request(&req, NULL, ADBREQ_SYNC, 1, ADB_FLUSH(id));
1208 }
1209
1210 static void
1211 init_ms_a3(int id)
1212 {
1213         struct adb_request req;
1214
1215         printk(" (Mouse Systems A3 Mouse, or compatible)");
1216         adb_request(&req, NULL, ADBREQ_SYNC, 3,
1217         ADB_WRITEREG(id, 0x2),
1218             0x00,
1219             0x07);
1220  
1221         adb_request(&req, NULL, ADBREQ_SYNC, 1, ADB_FLUSH(id));
1222 }
1223
1224 static int __init adbhid_init(void)
1225 {
1226 #ifndef CONFIG_MAC
1227         if (!machine_is(chrp) && !machine_is(powermac))
1228                 return 0;
1229 #endif
1230
1231         led_request.complete = 1;
1232
1233         adbhid_probe();
1234
1235         blocking_notifier_chain_register(&adb_client_list,
1236                         &adbhid_adb_notifier);
1237
1238         return 0;
1239 }
1240
1241 static void __exit adbhid_exit(void)
1242 {
1243 }
1244  
1245 module_init(adbhid_init);
1246 module_exit(adbhid_exit);