xref: /openbmc/linux/drivers/macintosh/adbhid.c (revision 6130ed79)
1 // SPDX-License-Identifier: GPL-2.0
2 /*
3  * drivers/macintosh/adbhid.c
4  *
5  * ADB HID driver for Power Macintosh computers.
6  *
7  * Adapted from drivers/macintosh/mac_keyb.c by Franz Sirl.
8  * drivers/macintosh/mac_keyb.c was Copyright (C) 1996 Paul Mackerras
9  * with considerable contributions from Ben Herrenschmidt and others.
10  *
11  * Copyright (C) 2000 Franz Sirl.
12  *
13  * Adapted to ADB changes and support for more devices by
14  * Benjamin Herrenschmidt. Adapted from code in MkLinux
15  * and reworked.
16  *
17  * Supported devices:
18  *
19  * - Standard 1 button mouse
20  * - All standard Apple Extended protocol (handler ID 4)
21  * - mouseman and trackman mice & trackballs
22  * - PowerBook Trackpad (default setup: enable tapping)
23  * - MicroSpeed mouse & trackball (needs testing)
24  * - CH Products Trackball Pro (needs testing)
25  * - Contour Design (Contour Mouse)
26  * - Hunter digital (NoHandsMouse)
27  * - Kensignton TurboMouse 5 (needs testing)
28  * - Mouse Systems A3 mice and trackballs <aidan@kublai.com>
29  * - MacAlly 2-buttons mouse (needs testing) <pochini@denise.shiny.it>
30  *
31  * To do:
32  *
33  * Improve Kensington support.
34  * Split mouse/kbd
35  * Move to syfs
36  */
37 
38 #include <linux/module.h>
39 #include <linux/slab.h>
40 #include <linux/init.h>
41 #include <linux/notifier.h>
42 #include <linux/input.h>
43 
44 #include <linux/adb.h>
45 #include <linux/cuda.h>
46 #include <linux/pmu.h>
47 
48 #include <asm/machdep.h>
49 #ifdef CONFIG_PPC_PMAC
50 #include <asm/backlight.h>
51 #include <asm/pmac_feature.h>
52 #endif
53 
54 MODULE_AUTHOR("Franz Sirl <Franz.Sirl-kernel@lauterbach.com>");
55 
56 static int restore_capslock_events;
57 module_param(restore_capslock_events, int, 0644);
58 MODULE_PARM_DESC(restore_capslock_events,
59 	"Produce keypress events for capslock on both keyup and keydown.");
60 
61 #define KEYB_KEYREG	0	/* register # for key up/down data */
62 #define KEYB_LEDREG	2	/* register # for leds on ADB keyboard */
63 #define MOUSE_DATAREG	0	/* reg# for movement/button codes from mouse */
64 
65 static int adb_message_handler(struct notifier_block *, unsigned long, void *);
66 static struct notifier_block adbhid_adb_notifier = {
67 	.notifier_call	= adb_message_handler,
68 };
69 
70 /* Some special keys */
71 #define ADB_KEY_DEL		0x33
72 #define ADB_KEY_CMD		0x37
73 #define ADB_KEY_CAPSLOCK	0x39
74 #define ADB_KEY_FN		0x3f
75 #define ADB_KEY_FWDEL		0x75
76 #define ADB_KEY_POWER_OLD	0x7e
77 #define ADB_KEY_POWER		0x7f
78 
79 static const u16 adb_to_linux_keycodes[128] = {
80 	/* 0x00 */ KEY_A, 		/*  30 */
81 	/* 0x01 */ KEY_S, 		/*  31 */
82 	/* 0x02 */ KEY_D,		/*  32 */
83 	/* 0x03 */ KEY_F,		/*  33 */
84 	/* 0x04 */ KEY_H,		/*  35 */
85 	/* 0x05 */ KEY_G,		/*  34 */
86 	/* 0x06 */ KEY_Z,		/*  44 */
87 	/* 0x07 */ KEY_X,		/*  45 */
88 	/* 0x08 */ KEY_C,		/*  46 */
89 	/* 0x09 */ KEY_V,		/*  47 */
90 	/* 0x0a */ KEY_102ND,		/*  86 */
91 	/* 0x0b */ KEY_B,		/*  48 */
92 	/* 0x0c */ KEY_Q,		/*  16 */
93 	/* 0x0d */ KEY_W,		/*  17 */
94 	/* 0x0e */ KEY_E,		/*  18 */
95 	/* 0x0f */ KEY_R,		/*  19 */
96 	/* 0x10 */ KEY_Y,		/*  21 */
97 	/* 0x11 */ KEY_T,		/*  20 */
98 	/* 0x12 */ KEY_1,		/*   2 */
99 	/* 0x13 */ KEY_2,		/*   3 */
100 	/* 0x14 */ KEY_3,		/*   4 */
101 	/* 0x15 */ KEY_4,		/*   5 */
102 	/* 0x16 */ KEY_6,		/*   7 */
103 	/* 0x17 */ KEY_5,		/*   6 */
104 	/* 0x18 */ KEY_EQUAL,		/*  13 */
105 	/* 0x19 */ KEY_9,		/*  10 */
106 	/* 0x1a */ KEY_7,		/*   8 */
107 	/* 0x1b */ KEY_MINUS,		/*  12 */
108 	/* 0x1c */ KEY_8,		/*   9 */
109 	/* 0x1d */ KEY_0,		/*  11 */
110 	/* 0x1e */ KEY_RIGHTBRACE,	/*  27 */
111 	/* 0x1f */ KEY_O,		/*  24 */
112 	/* 0x20 */ KEY_U,		/*  22 */
113 	/* 0x21 */ KEY_LEFTBRACE,	/*  26 */
114 	/* 0x22 */ KEY_I,		/*  23 */
115 	/* 0x23 */ KEY_P,		/*  25 */
116 	/* 0x24 */ KEY_ENTER,		/*  28 */
117 	/* 0x25 */ KEY_L,		/*  38 */
118 	/* 0x26 */ KEY_J,		/*  36 */
119 	/* 0x27 */ KEY_APOSTROPHE,	/*  40 */
120 	/* 0x28 */ KEY_K,		/*  37 */
121 	/* 0x29 */ KEY_SEMICOLON,	/*  39 */
122 	/* 0x2a */ KEY_BACKSLASH,	/*  43 */
123 	/* 0x2b */ KEY_COMMA,		/*  51 */
124 	/* 0x2c */ KEY_SLASH,		/*  53 */
125 	/* 0x2d */ KEY_N,		/*  49 */
126 	/* 0x2e */ KEY_M,		/*  50 */
127 	/* 0x2f */ KEY_DOT,		/*  52 */
128 	/* 0x30 */ KEY_TAB,		/*  15 */
129 	/* 0x31 */ KEY_SPACE,		/*  57 */
130 	/* 0x32 */ KEY_GRAVE,		/*  41 */
131 	/* 0x33 */ KEY_BACKSPACE,	/*  14 */
132 	/* 0x34 */ KEY_KPENTER,		/*  96 */
133 	/* 0x35 */ KEY_ESC,		/*   1 */
134 	/* 0x36 */ KEY_LEFTCTRL,	/*  29 */
135 	/* 0x37 */ KEY_LEFTMETA,	/* 125 */
136 	/* 0x38 */ KEY_LEFTSHIFT,	/*  42 */
137 	/* 0x39 */ KEY_CAPSLOCK,	/*  58 */
138 	/* 0x3a */ KEY_LEFTALT,		/*  56 */
139 	/* 0x3b */ KEY_LEFT,		/* 105 */
140 	/* 0x3c */ KEY_RIGHT,		/* 106 */
141 	/* 0x3d */ KEY_DOWN,		/* 108 */
142 	/* 0x3e */ KEY_UP,		/* 103 */
143 	/* 0x3f */ KEY_FN,		/* 0x1d0 */
144 	/* 0x40 */ 0,
145 	/* 0x41 */ KEY_KPDOT,		/*  83 */
146 	/* 0x42 */ 0,
147 	/* 0x43 */ KEY_KPASTERISK,	/*  55 */
148 	/* 0x44 */ 0,
149 	/* 0x45 */ KEY_KPPLUS,		/*  78 */
150 	/* 0x46 */ 0,
151 	/* 0x47 */ KEY_NUMLOCK,		/*  69 */
152 	/* 0x48 */ 0,
153 	/* 0x49 */ 0,
154 	/* 0x4a */ 0,
155 	/* 0x4b */ KEY_KPSLASH,		/*  98 */
156 	/* 0x4c */ KEY_KPENTER,		/*  96 */
157 	/* 0x4d */ 0,
158 	/* 0x4e */ KEY_KPMINUS,		/*  74 */
159 	/* 0x4f */ 0,
160 	/* 0x50 */ 0,
161 	/* 0x51 */ KEY_KPEQUAL,		/* 117 */
162 	/* 0x52 */ KEY_KP0,		/*  82 */
163 	/* 0x53 */ KEY_KP1,		/*  79 */
164 	/* 0x54 */ KEY_KP2,		/*  80 */
165 	/* 0x55 */ KEY_KP3,		/*  81 */
166 	/* 0x56 */ KEY_KP4,		/*  75 */
167 	/* 0x57 */ KEY_KP5,		/*  76 */
168 	/* 0x58 */ KEY_KP6,		/*  77 */
169 	/* 0x59 */ KEY_KP7,		/*  71 */
170 	/* 0x5a */ 0,
171 	/* 0x5b */ KEY_KP8,		/*  72 */
172 	/* 0x5c */ KEY_KP9,		/*  73 */
173 	/* 0x5d */ KEY_YEN,		/* 124 */
174 	/* 0x5e */ KEY_RO,		/*  89 */
175 	/* 0x5f */ KEY_KPCOMMA,		/* 121 */
176 	/* 0x60 */ KEY_F5,		/*  63 */
177 	/* 0x61 */ KEY_F6,		/*  64 */
178 	/* 0x62 */ KEY_F7,		/*  65 */
179 	/* 0x63 */ KEY_F3,		/*  61 */
180 	/* 0x64 */ KEY_F8,		/*  66 */
181 	/* 0x65 */ KEY_F9,		/*  67 */
182 	/* 0x66 */ KEY_HANJA,		/* 123 */
183 	/* 0x67 */ KEY_F11,		/*  87 */
184 	/* 0x68 */ KEY_HANGEUL,		/* 122 */
185 	/* 0x69 */ KEY_SYSRQ,		/*  99 */
186 	/* 0x6a */ 0,
187 	/* 0x6b */ KEY_SCROLLLOCK,	/*  70 */
188 	/* 0x6c */ 0,
189 	/* 0x6d */ KEY_F10,		/*  68 */
190 	/* 0x6e */ KEY_COMPOSE,		/* 127 */
191 	/* 0x6f */ KEY_F12,		/*  88 */
192 	/* 0x70 */ 0,
193 	/* 0x71 */ KEY_PAUSE,		/* 119 */
194 	/* 0x72 */ KEY_INSERT,		/* 110 */
195 	/* 0x73 */ KEY_HOME,		/* 102 */
196 	/* 0x74 */ KEY_PAGEUP,		/* 104 */
197 	/* 0x75 */ KEY_DELETE,		/* 111 */
198 	/* 0x76 */ KEY_F4,		/*  62 */
199 	/* 0x77 */ KEY_END,		/* 107 */
200 	/* 0x78 */ KEY_F2,		/*  60 */
201 	/* 0x79 */ KEY_PAGEDOWN,	/* 109 */
202 	/* 0x7a */ KEY_F1,		/*  59 */
203 	/* 0x7b */ KEY_RIGHTSHIFT,	/*  54 */
204 	/* 0x7c */ KEY_RIGHTALT,	/* 100 */
205 	/* 0x7d */ KEY_RIGHTCTRL,	/*  97 */
206 	/* 0x7e */ KEY_RIGHTMETA,	/* 126 */
207 	/* 0x7f */ KEY_POWER,		/* 116 */
208 };
209 
210 struct adbhid {
211 	struct input_dev *input;
212 	int id;
213 	int default_id;
214 	int original_handler_id;
215 	int current_handler_id;
216 	int mouse_kind;
217 	u16 *keycode;
218 	char name[64];
219 	char phys[32];
220 	int flags;
221 };
222 
223 #define FLAG_FN_KEY_PRESSED		0x00000001
224 #define FLAG_POWER_FROM_FN		0x00000002
225 #define FLAG_EMU_FWDEL_DOWN		0x00000004
226 #define FLAG_CAPSLOCK_TRANSLATE		0x00000008
227 #define FLAG_CAPSLOCK_DOWN		0x00000010
228 #define FLAG_CAPSLOCK_IGNORE_NEXT	0x00000020
229 #define FLAG_POWER_KEY_PRESSED		0x00000040
230 
231 static struct adbhid *adbhid[16];
232 
233 static void adbhid_probe(void);
234 
235 static void adbhid_input_keycode(int, int, int);
236 
237 static void init_trackpad(int id);
238 static void init_trackball(int id);
239 static void init_turbomouse(int id);
240 static void init_microspeed(int id);
241 static void init_ms_a3(int id);
242 
243 static struct adb_ids keyboard_ids;
244 static struct adb_ids mouse_ids;
245 static struct adb_ids buttons_ids;
246 
247 /* Kind of keyboard, see Apple technote 1152  */
248 #define ADB_KEYBOARD_UNKNOWN	0
249 #define ADB_KEYBOARD_ANSI	0x0100
250 #define ADB_KEYBOARD_ISO	0x0200
251 #define ADB_KEYBOARD_JIS	0x0300
252 
253 /* Kind of mouse  */
254 #define ADBMOUSE_STANDARD_100	0	/* Standard 100cpi mouse (handler 1) */
255 #define ADBMOUSE_STANDARD_200	1	/* Standard 200cpi mouse (handler 2) */
256 #define ADBMOUSE_EXTENDED	2	/* Apple Extended mouse (handler 4) */
257 #define ADBMOUSE_TRACKBALL	3	/* TrackBall (handler 4) */
258 #define ADBMOUSE_TRACKPAD       4	/* Apple's PowerBook trackpad (handler 4) */
259 #define ADBMOUSE_TURBOMOUSE5    5	/* Turbomouse 5 (previously req. mousehack) */
260 #define ADBMOUSE_MICROSPEED	6	/* Microspeed mouse (&trackball ?), MacPoint */
261 #define ADBMOUSE_TRACKBALLPRO	7	/* Trackball Pro (special buttons) */
262 #define ADBMOUSE_MS_A3		8	/* Mouse systems A3 trackball (handler 3) */
263 #define ADBMOUSE_MACALLY2	9	/* MacAlly 2-button mouse */
264 
265 static void
adbhid_keyboard_input(unsigned char * data,int nb,int apoll)266 adbhid_keyboard_input(unsigned char *data, int nb, int apoll)
267 {
268 	int id = (data[0] >> 4) & 0x0f;
269 
270 	if (!adbhid[id]) {
271 		pr_err("ADB HID on ID %d not yet registered, packet %#02x, %#02x, %#02x, %#02x\n",
272 		       id, data[0], data[1], data[2], data[3]);
273 		return;
274 	}
275 
276 	/* first check this is from register 0 */
277 	if (nb != 3 || (data[0] & 3) != KEYB_KEYREG)
278 		return;		/* ignore it */
279 	adbhid_input_keycode(id, data[1], 0);
280 	if (!(data[2] == 0xff || (data[2] == 0x7f && data[1] == 0x7f)))
281 		adbhid_input_keycode(id, data[2], 0);
282 }
283 
284 static void
adbhid_input_keycode(int id,int scancode,int repeat)285 adbhid_input_keycode(int id, int scancode, int repeat)
286 {
287 	struct adbhid *ahid = adbhid[id];
288 	int keycode, up_flag, key;
289 
290 	keycode = scancode & 0x7f;
291 	up_flag = scancode & 0x80;
292 
293 	if (restore_capslock_events) {
294 		if (keycode == ADB_KEY_CAPSLOCK && !up_flag) {
295 			/* Key pressed, turning on the CapsLock LED.
296 			 * The next 0xff will be interpreted as a release. */
297 			if (ahid->flags & FLAG_CAPSLOCK_IGNORE_NEXT) {
298 				/* Throw away this key event if it happens
299 				 * just after resume. */
300 				ahid->flags &= ~FLAG_CAPSLOCK_IGNORE_NEXT;
301 				return;
302 			} else {
303 				ahid->flags |= FLAG_CAPSLOCK_TRANSLATE
304 					| FLAG_CAPSLOCK_DOWN;
305 			}
306 		} else if (scancode == 0xff &&
307 			   !(ahid->flags & FLAG_POWER_KEY_PRESSED)) {
308 			/* Scancode 0xff usually signifies that the capslock
309 			 * key was either pressed or released, or that the
310 			 * power button was released. */
311 			if (ahid->flags & FLAG_CAPSLOCK_TRANSLATE) {
312 				keycode = ADB_KEY_CAPSLOCK;
313 				if (ahid->flags & FLAG_CAPSLOCK_DOWN) {
314 					/* Key released */
315 					up_flag = 1;
316 					ahid->flags &= ~FLAG_CAPSLOCK_DOWN;
317 				} else {
318 					/* Key pressed */
319 					up_flag = 0;
320 					ahid->flags &= ~FLAG_CAPSLOCK_TRANSLATE;
321 				}
322 			} else {
323 				pr_info("Spurious caps lock event (scancode 0xff).\n");
324 			}
325 		}
326 	}
327 
328 	switch (keycode) {
329 	case ADB_KEY_CAPSLOCK:
330 		if (!restore_capslock_events) {
331 			/* Generate down/up events for CapsLock every time. */
332 			input_report_key(ahid->input, KEY_CAPSLOCK, 1);
333 			input_sync(ahid->input);
334 			input_report_key(ahid->input, KEY_CAPSLOCK, 0);
335 			input_sync(ahid->input);
336 			return;
337 		}
338 		break;
339 #ifdef CONFIG_PPC_PMAC
340 	case ADB_KEY_POWER_OLD: /* Power key on PBook 3400 needs remapping */
341 		switch(pmac_call_feature(PMAC_FTR_GET_MB_INFO,
342 			NULL, PMAC_MB_INFO_MODEL, 0)) {
343 		case PMAC_TYPE_COMET:
344 		case PMAC_TYPE_HOOPER:
345 		case PMAC_TYPE_KANGA:
346 			keycode = ADB_KEY_POWER;
347 		}
348 		break;
349 	case ADB_KEY_POWER:
350 		/* Keep track of the power key state */
351 		if (up_flag)
352 			ahid->flags &= ~FLAG_POWER_KEY_PRESSED;
353 		else
354 			ahid->flags |= FLAG_POWER_KEY_PRESSED;
355 
356 		/* Fn + Command will produce a bogus "power" keycode */
357 		if (ahid->flags & FLAG_FN_KEY_PRESSED) {
358 			keycode = ADB_KEY_CMD;
359 			if (up_flag)
360 				ahid->flags &= ~FLAG_POWER_FROM_FN;
361 			else
362 				ahid->flags |= FLAG_POWER_FROM_FN;
363 		} else if (ahid->flags & FLAG_POWER_FROM_FN) {
364 			keycode = ADB_KEY_CMD;
365 			ahid->flags &= ~FLAG_POWER_FROM_FN;
366 		}
367 		break;
368 	case ADB_KEY_FN:
369 		/* Keep track of the Fn key state */
370 		if (up_flag) {
371 			ahid->flags &= ~FLAG_FN_KEY_PRESSED;
372 			/* Emulate Fn+delete = forward delete */
373 			if (ahid->flags & FLAG_EMU_FWDEL_DOWN) {
374 				ahid->flags &= ~FLAG_EMU_FWDEL_DOWN;
375 				keycode = ADB_KEY_FWDEL;
376 				break;
377 			}
378 		} else
379 			ahid->flags |= FLAG_FN_KEY_PRESSED;
380 		break;
381 	case ADB_KEY_DEL:
382 		/* Emulate Fn+delete = forward delete */
383 		if (ahid->flags & FLAG_FN_KEY_PRESSED) {
384 			keycode = ADB_KEY_FWDEL;
385 			if (up_flag)
386 				ahid->flags &= ~FLAG_EMU_FWDEL_DOWN;
387 			else
388 				ahid->flags |= FLAG_EMU_FWDEL_DOWN;
389 		}
390 		break;
391 #endif /* CONFIG_PPC_PMAC */
392 	}
393 
394 	key = adbhid[id]->keycode[keycode];
395 	if (key) {
396 		input_report_key(adbhid[id]->input, key, !up_flag);
397 		input_sync(adbhid[id]->input);
398 	} else
399 		pr_info("Unhandled ADB key (scancode %#02x) %s.\n", keycode,
400 			up_flag ? "released" : "pressed");
401 
402 }
403 
404 static void
adbhid_mouse_input(unsigned char * data,int nb,int autopoll)405 adbhid_mouse_input(unsigned char *data, int nb, int autopoll)
406 {
407 	int id = (data[0] >> 4) & 0x0f;
408 
409 	if (!adbhid[id]) {
410 		pr_err("ADB HID on ID %d not yet registered\n", id);
411 		return;
412 	}
413 
414   /*
415     Handler 1 -- 100cpi original Apple mouse protocol.
416     Handler 2 -- 200cpi original Apple mouse protocol.
417 
418     For Apple's standard one-button mouse protocol the data array will
419     contain the following values:
420 
421                 BITS    COMMENTS
422     data[0] = dddd 1100 ADB command: Talk, register 0, for device dddd.
423     data[1] = bxxx xxxx First button and x-axis motion.
424     data[2] = byyy yyyy Second button and y-axis motion.
425 
426     Handler 4 -- Apple Extended mouse protocol.
427 
428     For Apple's 3-button mouse protocol the data array will contain the
429     following values:
430 
431 		BITS    COMMENTS
432     data[0] = dddd 1100 ADB command: Talk, register 0, for device dddd.
433     data[1] = bxxx xxxx Left button and x-axis motion.
434     data[2] = byyy yyyy Second button and y-axis motion.
435     data[3] = byyy bxxx Third button and fourth button.  Y is additional
436 	      high bits of y-axis motion.  XY is additional
437 	      high bits of x-axis motion.
438 
439     MacAlly 2-button mouse protocol.
440 
441     For MacAlly 2-button mouse protocol the data array will contain the
442     following values:
443 
444 		BITS    COMMENTS
445     data[0] = dddd 1100 ADB command: Talk, register 0, for device dddd.
446     data[1] = bxxx xxxx Left button and x-axis motion.
447     data[2] = byyy yyyy Right button and y-axis motion.
448     data[3] = ???? ???? unknown
449     data[4] = ???? ???? unknown
450 
451   */
452 
453 	/* If it's a trackpad, we alias the second button to the first.
454 	   NOTE: Apple sends an ADB flush command to the trackpad when
455 	         the first (the real) button is released. We could do
456 		 this here using async flush requests.
457 	*/
458 	switch (adbhid[id]->mouse_kind)
459 	{
460 	    case ADBMOUSE_TRACKPAD:
461 		data[1] = (data[1] & 0x7f) | ((data[1] & data[2]) & 0x80);
462 		data[2] = data[2] | 0x80;
463 		break;
464 	    case ADBMOUSE_MICROSPEED:
465 		data[1] = (data[1] & 0x7f) | ((data[3] & 0x01) << 7);
466 		data[2] = (data[2] & 0x7f) | ((data[3] & 0x02) << 6);
467 		data[3] = (data[3] & 0x77) | ((data[3] & 0x04) << 5)
468 			| (data[3] & 0x08);
469 		break;
470 	    case ADBMOUSE_TRACKBALLPRO:
471 		data[1] = (data[1] & 0x7f) | (((data[3] & 0x04) << 5)
472 			& ((data[3] & 0x08) << 4));
473 		data[2] = (data[2] & 0x7f) | ((data[3] & 0x01) << 7);
474 		data[3] = (data[3] & 0x77) | ((data[3] & 0x02) << 6);
475 		break;
476 	    case ADBMOUSE_MS_A3:
477 		data[1] = (data[1] & 0x7f) | ((data[3] & 0x01) << 7);
478 		data[2] = (data[2] & 0x7f) | ((data[3] & 0x02) << 6);
479 		data[3] = ((data[3] & 0x04) << 5);
480 		break;
481             case ADBMOUSE_MACALLY2:
482 		data[3] = (data[2] & 0x80) ? 0x80 : 0x00;
483 		data[2] |= 0x80;  /* Right button is mapped as button 3 */
484 		nb=4;
485                 break;
486 	}
487 
488 	input_report_key(adbhid[id]->input, BTN_LEFT,   !((data[1] >> 7) & 1));
489 	input_report_key(adbhid[id]->input, BTN_MIDDLE, !((data[2] >> 7) & 1));
490 
491 	if (nb >= 4 && adbhid[id]->mouse_kind != ADBMOUSE_TRACKPAD)
492 		input_report_key(adbhid[id]->input, BTN_RIGHT,  !((data[3] >> 7) & 1));
493 
494 	input_report_rel(adbhid[id]->input, REL_X,
495 			 ((data[2]&0x7f) < 64 ? (data[2]&0x7f) : (data[2]&0x7f)-128 ));
496 	input_report_rel(adbhid[id]->input, REL_Y,
497 			 ((data[1]&0x7f) < 64 ? (data[1]&0x7f) : (data[1]&0x7f)-128 ));
498 
499 	input_sync(adbhid[id]->input);
500 }
501 
502 static void
adbhid_buttons_input(unsigned char * data,int nb,int autopoll)503 adbhid_buttons_input(unsigned char *data, int nb, int autopoll)
504 {
505 	int id = (data[0] >> 4) & 0x0f;
506 
507 	if (!adbhid[id]) {
508 		pr_err("ADB HID on ID %d not yet registered\n", id);
509 		return;
510 	}
511 
512 	switch (adbhid[id]->original_handler_id) {
513 	default:
514 	case 0x02: /* Adjustable keyboard button device */
515 	  {
516 		int down = (data[1] == (data[1] & 0xf));
517 
518 		switch (data[1] & 0x0f) {
519 		case 0x0:	/* microphone */
520 			input_report_key(adbhid[id]->input, KEY_SOUND, down);
521 			break;
522 
523 		case 0x1:	/* mute */
524 			input_report_key(adbhid[id]->input, KEY_MUTE, down);
525 			break;
526 
527 		case 0x2:	/* volume decrease */
528 			input_report_key(adbhid[id]->input, KEY_VOLUMEDOWN, down);
529 			break;
530 
531 		case 0x3:	/* volume increase */
532 			input_report_key(adbhid[id]->input, KEY_VOLUMEUP, down);
533 			break;
534 
535 		default:
536 			pr_info("Unhandled ADB_MISC event %02x, %02x, %02x, %02x\n",
537 				data[0], data[1], data[2], data[3]);
538 			break;
539 		}
540 	  }
541 	  break;
542 
543 	case 0x1f: /* Powerbook button device */
544 	  {
545 		int down = (data[1] == (data[1] & 0xf));
546 
547 		/*
548 		 * XXX: Where is the contrast control for the passive?
549 		 *  -- Cort
550 		 */
551 
552 		switch (data[1] & 0x0f) {
553 		case 0x8:	/* mute */
554 			input_report_key(adbhid[id]->input, KEY_MUTE, down);
555 			break;
556 
557 		case 0x7:	/* volume decrease */
558 			input_report_key(adbhid[id]->input, KEY_VOLUMEDOWN, down);
559 			break;
560 
561 		case 0x6:	/* volume increase */
562 			input_report_key(adbhid[id]->input, KEY_VOLUMEUP, down);
563 			break;
564 
565 		case 0xb:	/* eject */
566 			input_report_key(adbhid[id]->input, KEY_EJECTCD, down);
567 			break;
568 
569 		case 0xa:	/* brightness decrease */
570 #ifdef CONFIG_PMAC_BACKLIGHT
571 			if (down)
572 				pmac_backlight_key_down();
573 #endif
574 			input_report_key(adbhid[id]->input, KEY_BRIGHTNESSDOWN, down);
575 			break;
576 
577 		case 0x9:	/* brightness increase */
578 #ifdef CONFIG_PMAC_BACKLIGHT
579 			if (down)
580 				pmac_backlight_key_up();
581 #endif
582 			input_report_key(adbhid[id]->input, KEY_BRIGHTNESSUP, down);
583 			break;
584 
585 		case 0xc:	/* videomode switch */
586 			input_report_key(adbhid[id]->input, KEY_SWITCHVIDEOMODE, down);
587 			break;
588 
589 		case 0xd:	/* keyboard illumination toggle */
590 			input_report_key(adbhid[id]->input, KEY_KBDILLUMTOGGLE, down);
591 			break;
592 
593 		case 0xe:	/* keyboard illumination decrease */
594 			input_report_key(adbhid[id]->input, KEY_KBDILLUMDOWN, down);
595 			break;
596 
597 		case 0xf:
598 			switch (data[1]) {
599 			case 0x8f:
600 			case 0x0f:
601 				/* keyboard illumination increase */
602 				input_report_key(adbhid[id]->input, KEY_KBDILLUMUP, down);
603 				break;
604 
605 			case 0x7f:
606 			case 0xff:
607 				/* keypad overlay toogle */
608 				break;
609 
610 			default:
611 				pr_info("Unhandled ADB_MISC event %02x, %02x, %02x, %02x\n",
612 					data[0], data[1], data[2], data[3]);
613 				break;
614 			}
615 			break;
616 		default:
617 			pr_info("Unhandled ADB_MISC event %02x, %02x, %02x, %02x\n",
618 				data[0], data[1], data[2], data[3]);
619 			break;
620 		}
621 	  }
622 	  break;
623 	}
624 
625 	input_sync(adbhid[id]->input);
626 }
627 
628 static struct adb_request led_request;
629 static int leds_pending[16];
630 static int leds_req_pending;
631 static int pending_devs[16];
632 static int pending_led_start;
633 static int pending_led_end;
634 static DEFINE_SPINLOCK(leds_lock);
635 
leds_done(struct adb_request * req)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 
real_leds(unsigned char leds,int device)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  */
adbhid_kbd_event(struct input_dev * dev,unsigned int type,unsigned int code,int value)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
adbhid_kbd_capslock_remember(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
adb_message_handler(struct notifier_block * this,unsigned long code,void * x)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
adbhid_input_register(int id,int default_id,int original_handler_id,int current_handler_id,int mouse_kind)753 adbhid_input_register(int id, int default_id, int original_handler_id,
754 		      int current_handler_id, int mouse_kind)
755 {
756 	struct adbhid *hid;
757 	struct input_dev *input_dev;
758 	int err;
759 	int i;
760 	char *keyboard_type;
761 
762 	if (adbhid[id]) {
763 		pr_err("Trying to reregister ADB HID on ID %d\n", id);
764 		return -EEXIST;
765 	}
766 
767 	adbhid[id] = hid = kzalloc(sizeof(struct adbhid), GFP_KERNEL);
768 	input_dev = input_allocate_device();
769 	if (!hid || !input_dev) {
770 		err = -ENOMEM;
771 		goto fail;
772 	}
773 
774 	sprintf(hid->phys, "adb%d:%d.%02x/input", id, default_id, original_handler_id);
775 
776 	hid->input = input_dev;
777 	hid->id = default_id;
778 	hid->original_handler_id = original_handler_id;
779 	hid->current_handler_id = current_handler_id;
780 	hid->mouse_kind = mouse_kind;
781 	hid->flags = 0;
782 	input_set_drvdata(input_dev, hid);
783 	input_dev->name = hid->name;
784 	input_dev->phys = hid->phys;
785 	input_dev->id.bustype = BUS_ADB;
786 	input_dev->id.vendor = 0x0001;
787 	input_dev->id.product = (id << 12) | (default_id << 8) | original_handler_id;
788 	input_dev->id.version = 0x0100;
789 
790 	switch (default_id) {
791 	case ADB_KEYBOARD:
792 		hid->keycode = kmemdup(adb_to_linux_keycodes,
793 				       sizeof(adb_to_linux_keycodes), GFP_KERNEL);
794 		if (!hid->keycode) {
795 			err = -ENOMEM;
796 			goto fail;
797 		}
798 
799 		sprintf(hid->name, "ADB keyboard");
800 
801 		switch (original_handler_id) {
802 		default:
803 			keyboard_type = "<unknown>";
804 			input_dev->id.version = ADB_KEYBOARD_UNKNOWN;
805 			break;
806 
807 		case 0x01: case 0x02: case 0x03: case 0x06: case 0x08:
808 		case 0x0C: case 0x10: case 0x18: case 0x1B: case 0x1C:
809 		case 0xC0: case 0xC3: case 0xC6:
810 			keyboard_type = "ANSI";
811 			input_dev->id.version = ADB_KEYBOARD_ANSI;
812 			break;
813 
814 		case 0x04: case 0x05: case 0x07: case 0x09: case 0x0D:
815 		case 0x11: case 0x14: case 0x19: case 0x1D: case 0xC1:
816 		case 0xC4: case 0xC7:
817 			keyboard_type = "ISO, swapping keys";
818 			input_dev->id.version = ADB_KEYBOARD_ISO;
819 			swap(hid->keycode[10], hid->keycode[50]);
820 			break;
821 
822 		case 0x12: case 0x15: case 0x16: case 0x17: case 0x1A:
823 		case 0x1E: case 0xC2: case 0xC5: case 0xC8: case 0xC9:
824 			keyboard_type = "JIS";
825 			input_dev->id.version = ADB_KEYBOARD_JIS;
826 			break;
827 		}
828 		pr_info("Detected ADB keyboard, type %s.\n", keyboard_type);
829 
830 		for (i = 0; i < 128; i++)
831 			if (hid->keycode[i])
832 				set_bit(hid->keycode[i], input_dev->keybit);
833 
834 		input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_LED) |
835 			BIT_MASK(EV_REP);
836 		input_dev->ledbit[0] = BIT_MASK(LED_SCROLLL) |
837 			BIT_MASK(LED_CAPSL) | BIT_MASK(LED_NUML);
838 		input_dev->event = adbhid_kbd_event;
839 		input_dev->keycodemax = KEY_FN;
840 		input_dev->keycodesize = sizeof(hid->keycode[0]);
841 		break;
842 
843 	case ADB_MOUSE:
844 		sprintf(hid->name, "ADB mouse");
845 
846 		input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL);
847 		input_dev->keybit[BIT_WORD(BTN_MOUSE)] = BIT_MASK(BTN_LEFT) |
848 			BIT_MASK(BTN_MIDDLE) | BIT_MASK(BTN_RIGHT);
849 		input_dev->relbit[0] = BIT_MASK(REL_X) | BIT_MASK(REL_Y);
850 		break;
851 
852 	case ADB_MISC:
853 		switch (original_handler_id) {
854 		case 0x02: /* Adjustable keyboard button device */
855 			sprintf(hid->name, "ADB adjustable keyboard buttons");
856 			input_dev->evbit[0] = BIT_MASK(EV_KEY) |
857 				BIT_MASK(EV_REP);
858 			set_bit(KEY_SOUND, input_dev->keybit);
859 			set_bit(KEY_MUTE, input_dev->keybit);
860 			set_bit(KEY_VOLUMEUP, input_dev->keybit);
861 			set_bit(KEY_VOLUMEDOWN, input_dev->keybit);
862 			break;
863 		case 0x1f: /* Powerbook button device */
864 			sprintf(hid->name, "ADB Powerbook buttons");
865 			input_dev->evbit[0] = BIT_MASK(EV_KEY) |
866 				BIT_MASK(EV_REP);
867 			set_bit(KEY_MUTE, input_dev->keybit);
868 			set_bit(KEY_VOLUMEUP, input_dev->keybit);
869 			set_bit(KEY_VOLUMEDOWN, input_dev->keybit);
870 			set_bit(KEY_BRIGHTNESSUP, input_dev->keybit);
871 			set_bit(KEY_BRIGHTNESSDOWN, input_dev->keybit);
872 			set_bit(KEY_EJECTCD, input_dev->keybit);
873 			set_bit(KEY_SWITCHVIDEOMODE, input_dev->keybit);
874 			set_bit(KEY_KBDILLUMTOGGLE, input_dev->keybit);
875 			set_bit(KEY_KBDILLUMDOWN, input_dev->keybit);
876 			set_bit(KEY_KBDILLUMUP, input_dev->keybit);
877 			break;
878 		}
879 		if (hid->name[0])
880 			break;
881 		fallthrough;
882 
883 	default:
884 		pr_info("Trying to register unknown ADB device to input layer.\n");
885 		err = -ENODEV;
886 		goto fail;
887 	}
888 
889 	input_dev->keycode = hid->keycode;
890 
891 	err = input_register_device(input_dev);
892 	if (err)
893 		goto fail;
894 
895 	if (default_id == ADB_KEYBOARD) {
896 		/* HACK WARNING!! This should go away as soon there is an utility
897 		 * to control that for event devices.
898 		 */
899 		input_dev->rep[REP_DELAY] = 500;   /* input layer default: 250 */
900 		input_dev->rep[REP_PERIOD] = 66; /* input layer default: 33 */
901 	}
902 
903 	return 0;
904 
905  fail:	input_free_device(input_dev);
906 	if (hid) {
907 		kfree(hid->keycode);
908 		kfree(hid);
909 	}
910 	adbhid[id] = NULL;
911 	return err;
912 }
913 
adbhid_input_unregister(int id)914 static void adbhid_input_unregister(int id)
915 {
916 	input_unregister_device(adbhid[id]->input);
917 	kfree(adbhid[id]->keycode);
918 	kfree(adbhid[id]);
919 	adbhid[id] = NULL;
920 }
921 
922 
923 static u16
adbhid_input_reregister(int id,int default_id,int org_handler_id,int cur_handler_id,int mk)924 adbhid_input_reregister(int id, int default_id, int org_handler_id,
925 			int cur_handler_id, int mk)
926 {
927 	if (adbhid[id]) {
928 		if (adbhid[id]->input->id.product !=
929 		    ((id << 12)|(default_id << 8)|org_handler_id)) {
930 			adbhid_input_unregister(id);
931 			adbhid_input_register(id, default_id, org_handler_id,
932 					      cur_handler_id, mk);
933 		}
934 	} else
935 		adbhid_input_register(id, default_id, org_handler_id,
936 				      cur_handler_id, mk);
937 	return 1<<id;
938 }
939 
940 static void
adbhid_input_devcleanup(u16 exist)941 adbhid_input_devcleanup(u16 exist)
942 {
943 	int i;
944 	for(i=1; i<16; i++)
945 		if (adbhid[i] && !(exist&(1<<i)))
946 			adbhid_input_unregister(i);
947 }
948 
949 static void
adbhid_probe(void)950 adbhid_probe(void)
951 {
952 	struct adb_request req;
953 	int i, default_id, org_handler_id, cur_handler_id;
954 	u16 reg = 0;
955 
956 	adb_register(ADB_MOUSE, 0, &mouse_ids, adbhid_mouse_input);
957 	adb_register(ADB_KEYBOARD, 0, &keyboard_ids, adbhid_keyboard_input);
958 	adb_register(ADB_MISC, 0, &buttons_ids, adbhid_buttons_input);
959 
960 	for (i = 0; i < keyboard_ids.nids; i++) {
961 		int id = keyboard_ids.id[i];
962 
963 		adb_get_infos(id, &default_id, &org_handler_id);
964 
965 		/* turn off all leds */
966 		adb_request(&req, NULL, ADBREQ_SYNC, 3,
967 			    ADB_WRITEREG(id, KEYB_LEDREG), 0xff, 0xff);
968 
969 		/* Enable full feature set of the keyboard
970 		   ->get it to send separate codes for left and right shift,
971 		   control, option keys */
972 #if 0		/* handler 5 doesn't send separate codes for R modifiers */
973 		if (!adb_try_handler_change(id, 5))
974 #endif
975 		adb_try_handler_change(id, 3);
976 
977 		adb_get_infos(id, &default_id, &cur_handler_id);
978 		printk(KERN_DEBUG "ADB keyboard at %d has handler 0x%X\n",
979 		       id, cur_handler_id);
980 		reg |= adbhid_input_reregister(id, default_id, org_handler_id,
981 					       cur_handler_id, 0);
982 	}
983 
984 	for (i = 0; i < buttons_ids.nids; i++) {
985 		int id = buttons_ids.id[i];
986 
987 		adb_get_infos(id, &default_id, &org_handler_id);
988 		reg |= adbhid_input_reregister(id, default_id, org_handler_id,
989 					       org_handler_id, 0);
990 	}
991 
992 	/* Try to switch all mice to handler 4, or 2 for three-button
993 	   mode and full resolution. */
994 	for (i = 0; i < mouse_ids.nids; i++) {
995 		int id = mouse_ids.id[i];
996 		int mouse_kind;
997 		char *desc = "standard";
998 
999 		adb_get_infos(id, &default_id, &org_handler_id);
1000 
1001 		if (adb_try_handler_change(id, 4)) {
1002 			mouse_kind = ADBMOUSE_EXTENDED;
1003 		}
1004 		else if (adb_try_handler_change(id, 0x2F)) {
1005 			mouse_kind = ADBMOUSE_MICROSPEED;
1006 		}
1007 		else if (adb_try_handler_change(id, 0x42)) {
1008 			mouse_kind = ADBMOUSE_TRACKBALLPRO;
1009 		}
1010 		else if (adb_try_handler_change(id, 0x66)) {
1011 			mouse_kind = ADBMOUSE_MICROSPEED;
1012 		}
1013 		else if (adb_try_handler_change(id, 0x5F)) {
1014 			mouse_kind = ADBMOUSE_MICROSPEED;
1015 		}
1016 		else if (adb_try_handler_change(id, 3)) {
1017 			mouse_kind = ADBMOUSE_MS_A3;
1018 		}
1019 		else if (adb_try_handler_change(id, 2)) {
1020 			mouse_kind = ADBMOUSE_STANDARD_200;
1021 		}
1022 		else {
1023 			mouse_kind = ADBMOUSE_STANDARD_100;
1024 		}
1025 
1026 		if ((mouse_kind == ADBMOUSE_TRACKBALLPRO)
1027 		    || (mouse_kind == ADBMOUSE_MICROSPEED)) {
1028 			desc = "Microspeed/MacPoint or compatible";
1029 			init_microspeed(id);
1030 		} else if (mouse_kind == ADBMOUSE_MS_A3) {
1031 			desc = "Mouse Systems A3 Mouse or compatible";
1032 			init_ms_a3(id);
1033 		} else if (mouse_kind ==  ADBMOUSE_EXTENDED) {
1034 			desc = "extended";
1035 			/*
1036 			 * Register 1 is usually used for device
1037 			 * identification.  Here, we try to identify
1038 			 * a known device and call the appropriate
1039 			 * init function.
1040 			 */
1041 			adb_request(&req, NULL, ADBREQ_SYNC | ADBREQ_REPLY, 1,
1042 				    ADB_READREG(id, 1));
1043 
1044 			if ((req.reply_len) &&
1045 			    (req.reply[1] == 0x9a) && ((req.reply[2] == 0x21)
1046 			    	|| (req.reply[2] == 0x20))) {
1047 				mouse_kind = ADBMOUSE_TRACKBALL;
1048 				desc = "trackman/mouseman";
1049 				init_trackball(id);
1050 			}
1051 			else if ((req.reply_len >= 4) &&
1052 			    (req.reply[1] == 0x74) && (req.reply[2] == 0x70) &&
1053 			    (req.reply[3] == 0x61) && (req.reply[4] == 0x64)) {
1054 				mouse_kind = ADBMOUSE_TRACKPAD;
1055 				desc = "trackpad";
1056 				init_trackpad(id);
1057 			}
1058 			else if ((req.reply_len >= 4) &&
1059 			    (req.reply[1] == 0x4b) && (req.reply[2] == 0x4d) &&
1060 			    (req.reply[3] == 0x4c) && (req.reply[4] == 0x31)) {
1061 				mouse_kind = ADBMOUSE_TURBOMOUSE5;
1062 				desc = "TurboMouse 5";
1063 				init_turbomouse(id);
1064 			}
1065 			else if ((req.reply_len == 9) &&
1066 			    (req.reply[1] == 0x4b) && (req.reply[2] == 0x4f) &&
1067 			    (req.reply[3] == 0x49) && (req.reply[4] == 0x54)) {
1068 				if (adb_try_handler_change(id, 0x42)) {
1069 					mouse_kind = ADBMOUSE_MACALLY2;
1070 					desc = "MacAlly 2-button";
1071 				}
1072 			}
1073 		}
1074 
1075 		adb_get_infos(id, &default_id, &cur_handler_id);
1076 		printk(KERN_DEBUG "ADB mouse (%s) at %d has handler 0x%X\n",
1077 		       desc, id, cur_handler_id);
1078 		reg |= adbhid_input_reregister(id, default_id, org_handler_id,
1079 					       cur_handler_id, mouse_kind);
1080 	}
1081 	adbhid_input_devcleanup(reg);
1082 }
1083 
1084 static void
init_trackpad(int id)1085 init_trackpad(int id)
1086 {
1087 	struct adb_request req;
1088 	unsigned char r1_buffer[8];
1089 
1090 	adb_request(&req, NULL, ADBREQ_SYNC | ADBREQ_REPLY, 1,
1091 		    ADB_READREG(id,1));
1092 	if (req.reply_len < 8)
1093 		pr_err("%s: bad length for reg. 1\n", __func__);
1094 	else
1095 	{
1096 	    memcpy(r1_buffer, &req.reply[1], 8);
1097 
1098 	    adb_request(&req, NULL, ADBREQ_SYNC, 9,
1099 	        ADB_WRITEREG(id,1),
1100 	            r1_buffer[0],
1101 	            r1_buffer[1],
1102 	            r1_buffer[2],
1103 	            r1_buffer[3],
1104 	            r1_buffer[4],
1105 	            r1_buffer[5],
1106 	            0x0d,
1107 	            r1_buffer[7]);
1108 
1109             adb_request(&req, NULL, ADBREQ_SYNC, 9,
1110 	        ADB_WRITEREG(id,2),
1111 	    	    0x99,
1112 	    	    0x94,
1113 	    	    0x19,
1114 	    	    0xff,
1115 	    	    0xb2,
1116 	    	    0x8a,
1117 	    	    0x1b,
1118 	    	    0x50);
1119 
1120 	    adb_request(&req, NULL, ADBREQ_SYNC, 9,
1121 	        ADB_WRITEREG(id,1),
1122 	            r1_buffer[0],
1123 	            r1_buffer[1],
1124 	            r1_buffer[2],
1125 	            r1_buffer[3],
1126 	            r1_buffer[4],
1127 	            r1_buffer[5],
1128 	            0x03, /*r1_buffer[6],*/
1129 	            r1_buffer[7]);
1130 
1131 	    /* Without this flush, the trackpad may be locked up */
1132 	    adb_request(&req, NULL, ADBREQ_SYNC, 1, ADB_FLUSH(id));
1133         }
1134 }
1135 
1136 static void
init_trackball(int id)1137 init_trackball(int id)
1138 {
1139 	struct adb_request req;
1140 
1141 	adb_request(&req, NULL, ADBREQ_SYNC, 3,
1142 	ADB_WRITEREG(id,1), 00,0x81);
1143 
1144 	adb_request(&req, NULL, ADBREQ_SYNC, 3,
1145 	ADB_WRITEREG(id,1), 01,0x81);
1146 
1147 	adb_request(&req, NULL, ADBREQ_SYNC, 3,
1148 	ADB_WRITEREG(id,1), 02,0x81);
1149 
1150 	adb_request(&req, NULL, ADBREQ_SYNC, 3,
1151 	ADB_WRITEREG(id,1), 03,0x38);
1152 
1153 	adb_request(&req, NULL, ADBREQ_SYNC, 3,
1154 	ADB_WRITEREG(id,1), 00,0x81);
1155 
1156 	adb_request(&req, NULL, ADBREQ_SYNC, 3,
1157 	ADB_WRITEREG(id,1), 01,0x81);
1158 
1159 	adb_request(&req, NULL, ADBREQ_SYNC, 3,
1160 	ADB_WRITEREG(id,1), 02,0x81);
1161 
1162 	adb_request(&req, NULL, ADBREQ_SYNC, 3,
1163 	ADB_WRITEREG(id,1), 03,0x38);
1164 }
1165 
1166 static void
init_turbomouse(int id)1167 init_turbomouse(int id)
1168 {
1169 	struct adb_request req;
1170 
1171 	adb_request(&req, NULL, ADBREQ_SYNC, 1, ADB_FLUSH(id));
1172 
1173 	adb_request(&req, NULL, ADBREQ_SYNC, 1, ADB_FLUSH(3));
1174 
1175 	adb_request(&req, NULL, ADBREQ_SYNC, 9,
1176 	ADB_WRITEREG(3,2),
1177 	    0xe7,
1178 	    0x8c,
1179 	    0,
1180 	    0,
1181 	    0,
1182 	    0xff,
1183 	    0xff,
1184 	    0x94);
1185 
1186 	adb_request(&req, NULL, ADBREQ_SYNC, 1, ADB_FLUSH(3));
1187 
1188 	adb_request(&req, NULL, ADBREQ_SYNC, 9,
1189 	ADB_WRITEREG(3,2),
1190 	    0xa5,
1191 	    0x14,
1192 	    0,
1193 	    0,
1194 	    0x69,
1195 	    0xff,
1196 	    0xff,
1197 	    0x27);
1198 }
1199 
1200 static void
init_microspeed(int id)1201 init_microspeed(int id)
1202 {
1203 	struct adb_request req;
1204 
1205 	adb_request(&req, NULL, ADBREQ_SYNC, 1, ADB_FLUSH(id));
1206 
1207 	/* This will initialize mice using the Microspeed, MacPoint and
1208 	   other compatible firmware. Bit 12 enables extended protocol.
1209 
1210 	   Register 1 Listen (4 Bytes)
1211             0 -  3     Button is mouse (set also for double clicking!!!)
1212             4 -  7     Button is locking (affects change speed also)
1213             8 - 11     Button changes speed
1214            12          1 = Extended mouse mode, 0 = normal mouse mode
1215            13 - 15     unused 0
1216            16 - 23     normal speed
1217            24 - 31     changed speed
1218 
1219        Register 1 talk holds version and product identification information.
1220        Register 1 Talk (4 Bytes):
1221             0 -  7     Product code
1222             8 - 23     undefined, reserved
1223            24 - 31     Version number
1224 
1225        Speed 0 is max. 1 to 255 set speed in increments of 1/256 of max.
1226  */
1227 	adb_request(&req, NULL, ADBREQ_SYNC, 5,
1228 	ADB_WRITEREG(id,1),
1229 	    0x20,	/* alt speed = 0x20 (rather slow) */
1230 	    0x00,	/* norm speed = 0x00 (fastest) */
1231 	    0x10,	/* extended protocol, no speed change */
1232 	    0x07);	/* all buttons enabled as mouse buttons, no locking */
1233 
1234 
1235 	adb_request(&req, NULL, ADBREQ_SYNC, 1, ADB_FLUSH(id));
1236 }
1237 
1238 static void
init_ms_a3(int id)1239 init_ms_a3(int id)
1240 {
1241 	struct adb_request req;
1242 
1243 	adb_request(&req, NULL, ADBREQ_SYNC, 3,
1244 	ADB_WRITEREG(id, 0x2),
1245 	    0x00,
1246 	    0x07);
1247 
1248  	adb_request(&req, NULL, ADBREQ_SYNC, 1, ADB_FLUSH(id));
1249 }
1250 
adbhid_init(void)1251 static int __init adbhid_init(void)
1252 {
1253 #ifndef CONFIG_MAC
1254 	if (!machine_is(chrp) && !machine_is(powermac))
1255 		return 0;
1256 #endif
1257 
1258 	led_request.complete = 1;
1259 
1260 	adbhid_probe();
1261 
1262 	blocking_notifier_chain_register(&adb_client_list,
1263 			&adbhid_adb_notifier);
1264 
1265 	return 0;
1266 }
1267 
adbhid_exit(void)1268 static void __exit adbhid_exit(void)
1269 {
1270 }
1271 
1272 module_init(adbhid_init);
1273 module_exit(adbhid_exit);
1274