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adbhid.c
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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 <[email protected]>
28  * - MacAlly 2-buttons mouse (needs testing) <[email protected]>
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 <[email protected]>");
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 static 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 
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 #define FLAG_CAPSLOCK_IGNORE_NEXT 0x00000020
228 #define FLAG_POWER_KEY_PRESSED 0x00000040
229 
230 static struct adbhid *adbhid[16];
231 
232 static void adbhid_probe(void);
233 
234 static void adbhid_input_keycode(int, int, int);
235 
236 static void init_trackpad(int id);
237 static void init_trackball(int id);
238 static void init_turbomouse(int id);
239 static void init_microspeed(int id);
240 static void init_ms_a3(int id);
241 
242 static struct adb_ids keyboard_ids;
243 static struct adb_ids mouse_ids;
244 static 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 
264 static void
265 adbhid_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 
283 static void
284 adbhid_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 
404 static void
405 adbhid_mouse_input(unsigned char *data, int nb, int autopoll)
406 {
407  int id = (data[0] >> 4) & 0x0f;
408 
409  if (!adbhid[id]) {
410  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 
502 static void
503 adbhid_buttons_input(unsigned char *data, int nb, int autopoll)
504 {
505  int id = (data[0] >> 4) & 0x0f;
506 
507  if (!adbhid[id]) {
508  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 
628 static struct adb_request led_request;
629 static int leds_pending[16];
630 static int leds_req_pending;
631 static int pending_devs[16];
632 static int pending_led_start;
633 static int pending_led_end;
634 static DEFINE_SPINLOCK(leds_lock);
635 
636 static void leds_done(struct adb_request *req)
637 {
638  int leds = 0, device = 0, pending = 0;
639  unsigned long flags;
640 
641  spin_lock_irqsave(&leds_lock, flags);
642 
643  if (pending_led_start != pending_led_end) {
644  device = pending_devs[pending_led_start];
645  leds = leds_pending[device] & 0xff;
646  leds_pending[device] = 0;
647  pending_led_start++;
648  pending_led_start = (pending_led_start < 16) ? pending_led_start : 0;
649  pending = leds_req_pending;
650  } else
651  leds_req_pending = 0;
652  spin_unlock_irqrestore(&leds_lock, flags);
653  if (pending)
654  adb_request(&led_request, leds_done, 0, 3,
655  ADB_WRITEREG(device, KEYB_LEDREG), 0xff, ~leds);
656 }
657 
658 static void real_leds(unsigned char leds, int device)
659 {
660  unsigned long flags;
661 
662  spin_lock_irqsave(&leds_lock, flags);
663  if (!leds_req_pending) {
664  leds_req_pending = 1;
665  spin_unlock_irqrestore(&leds_lock, flags);
666  adb_request(&led_request, leds_done, 0, 3,
667  ADB_WRITEREG(device, KEYB_LEDREG), 0xff, ~leds);
668  return;
669  } else {
670  if (!(leds_pending[device] & 0x100)) {
671  pending_devs[pending_led_end] = device;
672  pending_led_end++;
673  pending_led_end = (pending_led_end < 16) ? pending_led_end : 0;
674  }
675  leds_pending[device] = leds | 0x100;
676  }
677  spin_unlock_irqrestore(&leds_lock, flags);
678 }
679 
680 /*
681  * Event callback from the input module. Events that change the state of
682  * the hardware are processed here.
683  */
684 static int adbhid_kbd_event(struct input_dev *dev, unsigned int type, unsigned int code, int value)
685 {
686  struct adbhid *adbhid = input_get_drvdata(dev);
687  unsigned char leds;
688 
689  switch (type) {
690  case EV_LED:
691  leds = (test_bit(LED_SCROLLL, dev->led) ? 4 : 0) |
692  (test_bit(LED_NUML, dev->led) ? 1 : 0) |
693  (test_bit(LED_CAPSL, dev->led) ? 2 : 0);
694  real_leds(leds, adbhid->id);
695  return 0;
696  }
697 
698  return -1;
699 }
700 
701 static void
702 adbhid_kbd_capslock_remember(void)
703 {
704  struct adbhid *ahid;
705  int i;
706 
707  for (i = 1; i < 16; i++) {
708  ahid = adbhid[i];
709 
710  if (ahid && ahid->id == ADB_KEYBOARD)
711  if (ahid->flags & FLAG_CAPSLOCK_TRANSLATE)
712  ahid->flags |= FLAG_CAPSLOCK_IGNORE_NEXT;
713  }
714 }
715 
716 static int
717 adb_message_handler(struct notifier_block *this, unsigned long code, void *x)
718 {
719  switch (code) {
720  case ADB_MSG_PRE_RESET:
721  case ADB_MSG_POWERDOWN:
722  /* Stop the repeat timer. Autopoll is already off at this point */
723  {
724  int i;
725  for (i = 1; i < 16; i++) {
726  if (adbhid[i])
727  del_timer_sync(&adbhid[i]->input->timer);
728  }
729  }
730 
731  /* Stop pending led requests */
732  while (leds_req_pending)
733  adb_poll();
734 
735  /* After resume, and if the capslock LED is on, the PMU will
736  * send a "capslock down" key event. This confuses the
737  * restore_capslock_events logic. Remember if the capslock
738  * LED was on before suspend so the unwanted key event can
739  * be ignored after resume. */
740  if (restore_capslock_events)
741  adbhid_kbd_capslock_remember();
742 
743  break;
744 
745  case ADB_MSG_POST_RESET:
746  adbhid_probe();
747  break;
748  }
749  return NOTIFY_DONE;
750 }
751 
752 static int
753 adbhid_input_register(int id, int default_id, int original_handler_id,
754  int current_handler_id, int mouse_kind)
755 {
756  struct adbhid *hid;
757  struct input_dev *input_dev;
758  int err;
759  int i;
760 
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 
916 static 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 
925 static u16
926 adbhid_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 
942 static void
943 adbhid_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 
951 static void
952 adbhid_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 
1089 static void
1090 init_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 
1143 static void
1144 init_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 
1175 static void
1176 init_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 
1211 static void
1212 init_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 
1251 static void
1252 init_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 
1265 static 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 
1282 static void __exit adbhid_exit(void)
1283 {
1284 }
1285 
1286 module_init(adbhid_init);
1287 module_exit(adbhid_exit);
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