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Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
[linux-2.6-block.git] / drivers / macintosh / adbhid.c
CommitLineData
1da177e4
LT		 1/*
2 * drivers/input/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
1da177e4
LT		 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
a07562e0 49#include <asm/backlight.h>
1da177e4
LT		 50#include <asm/pmac_feature.h>
51#endif
52
1da177e4
LT		 53MODULE_AUTHOR("Franz Sirl <Franz.Sirl-kernel@lauterbach.com>");
54
55#define KEYB_KEYREG 0 /* register # for key up/down data */
56#define KEYB_LEDREG 2 /* register # for leds on ADB keyboard */
57#define MOUSE_DATAREG 0 /* reg# for movement/button codes from mouse */
58
59static int adb_message_handler(struct notifier_block *, unsigned long, void *);
60static struct notifier_block adbhid_adb_notifier = {
61 .notifier_call = adb_message_handler,
62};
63
64/* Some special keys */
65#define ADB_KEY_DEL 0x33
66#define ADB_KEY_CMD 0x37
67#define ADB_KEY_CAPSLOCK 0x39
68#define ADB_KEY_FN 0x3f
69#define ADB_KEY_FWDEL 0x75
70#define ADB_KEY_POWER_OLD 0x7e
71#define ADB_KEY_POWER 0x7f
72
73u8 adb_to_linux_keycodes[128] = {
74 /* 0x00 */ KEY_A, /* 30 */
75 /* 0x01 */ KEY_S, /* 31 */
76 /* 0x02 */ KEY_D, /* 32 */
77 /* 0x03 */ KEY_F, /* 33 */
78 /* 0x04 */ KEY_H, /* 35 */
79 /* 0x05 */ KEY_G, /* 34 */
80 /* 0x06 */ KEY_Z, /* 44 */
81 /* 0x07 */ KEY_X, /* 45 */
82 /* 0x08 */ KEY_C, /* 46 */
83 /* 0x09 */ KEY_V, /* 47 */
84 /* 0x0a */ KEY_102ND, /* 86 */
85 /* 0x0b */ KEY_B, /* 48 */
86 /* 0x0c */ KEY_Q, /* 16 */
87 /* 0x0d */ KEY_W, /* 17 */
88 /* 0x0e */ KEY_E, /* 18 */
89 /* 0x0f */ KEY_R, /* 19 */
90 /* 0x10 */ KEY_Y, /* 21 */
91 /* 0x11 */ KEY_T, /* 20 */
92 /* 0x12 */ KEY_1, /* 2 */
93 /* 0x13 */ KEY_2, /* 3 */
94 /* 0x14 */ KEY_3, /* 4 */
95 /* 0x15 */ KEY_4, /* 5 */
96 /* 0x16 */ KEY_6, /* 7 */
97 /* 0x17 */ KEY_5, /* 6 */
98 /* 0x18 */ KEY_EQUAL, /* 13 */
99 /* 0x19 */ KEY_9, /* 10 */
100 /* 0x1a */ KEY_7, /* 8 */
101 /* 0x1b */ KEY_MINUS, /* 12 */
102 /* 0x1c */ KEY_8, /* 9 */
103 /* 0x1d */ KEY_0, /* 11 */
104 /* 0x1e */ KEY_RIGHTBRACE, /* 27 */
105 /* 0x1f */ KEY_O, /* 24 */
106 /* 0x20 */ KEY_U, /* 22 */
107 /* 0x21 */ KEY_LEFTBRACE, /* 26 */
108 /* 0x22 */ KEY_I, /* 23 */
109 /* 0x23 */ KEY_P, /* 25 */
110 /* 0x24 */ KEY_ENTER, /* 28 */
111 /* 0x25 */ KEY_L, /* 38 */
112 /* 0x26 */ KEY_J, /* 36 */
113 /* 0x27 */ KEY_APOSTROPHE, /* 40 */
114 /* 0x28 */ KEY_K, /* 37 */
115 /* 0x29 */ KEY_SEMICOLON, /* 39 */
116 /* 0x2a */ KEY_BACKSLASH, /* 43 */
117 /* 0x2b */ KEY_COMMA, /* 51 */
118 /* 0x2c */ KEY_SLASH, /* 53 */
119 /* 0x2d */ KEY_N, /* 49 */
120 /* 0x2e */ KEY_M, /* 50 */
121 /* 0x2f */ KEY_DOT, /* 52 */
122 /* 0x30 */ KEY_TAB, /* 15 */
123 /* 0x31 */ KEY_SPACE, /* 57 */
124 /* 0x32 */ KEY_GRAVE, /* 41 */
125 /* 0x33 */ KEY_BACKSPACE, /* 14 */
126 /* 0x34 */ KEY_KPENTER, /* 96 */
127 /* 0x35 */ KEY_ESC, /* 1 */
128 /* 0x36 */ KEY_LEFTCTRL, /* 29 */
129 /* 0x37 */ KEY_LEFTMETA, /* 125 */
130 /* 0x38 */ KEY_LEFTSHIFT, /* 42 */
131 /* 0x39 */ KEY_CAPSLOCK, /* 58 */
132 /* 0x3a */ KEY_LEFTALT, /* 56 */
133 /* 0x3b */ KEY_LEFT, /* 105 */
134 /* 0x3c */ KEY_RIGHT, /* 106 */
135 /* 0x3d */ KEY_DOWN, /* 108 */
136 /* 0x3e */ KEY_UP, /* 103 */
137 /* 0x3f */ 0,
138 /* 0x40 */ 0,
139 /* 0x41 */ KEY_KPDOT, /* 83 */
140 /* 0x42 */ 0,
141 /* 0x43 */ KEY_KPASTERISK, /* 55 */
142 /* 0x44 */ 0,
143 /* 0x45 */ KEY_KPPLUS, /* 78 */
144 /* 0x46 */ 0,
145 /* 0x47 */ KEY_NUMLOCK, /* 69 */
146 /* 0x48 */ 0,
147 /* 0x49 */ 0,
148 /* 0x4a */ 0,
149 /* 0x4b */ KEY_KPSLASH, /* 98 */
150 /* 0x4c */ KEY_KPENTER, /* 96 */
151 /* 0x4d */ 0,
152 /* 0x4e */ KEY_KPMINUS, /* 74 */
153 /* 0x4f */ 0,
154 /* 0x50 */ 0,
155 /* 0x51 */ KEY_KPEQUAL, /* 117 */
156 /* 0x52 */ KEY_KP0, /* 82 */
157 /* 0x53 */ KEY_KP1, /* 79 */
158 /* 0x54 */ KEY_KP2, /* 80 */
159 /* 0x55 */ KEY_KP3, /* 81 */
160 /* 0x56 */ KEY_KP4, /* 75 */
161 /* 0x57 */ KEY_KP5, /* 76 */
162 /* 0x58 */ KEY_KP6, /* 77 */
163 /* 0x59 */ KEY_KP7, /* 71 */
164 /* 0x5a */ 0,
165 /* 0x5b */ KEY_KP8, /* 72 */
166 /* 0x5c */ KEY_KP9, /* 73 */
167 /* 0x5d */ KEY_YEN, /* 124 */
168 /* 0x5e */ KEY_RO, /* 89 */
169 /* 0x5f */ KEY_KPCOMMA, /* 121 */
170 /* 0x60 */ KEY_F5, /* 63 */
171 /* 0x61 */ KEY_F6, /* 64 */
172 /* 0x62 */ KEY_F7, /* 65 */
173 /* 0x63 */ KEY_F3, /* 61 */
174 /* 0x64 */ KEY_F8, /* 66 */
175 /* 0x65 */ KEY_F9, /* 67 */
176 /* 0x66 */ KEY_HANJA, /* 123 */
177 /* 0x67 */ KEY_F11, /* 87 */
b9ab58dd 178 /* 0x68 */ KEY_HANGEUL, /* 122 */
1da177e4
LT		 179 /* 0x69 */ KEY_SYSRQ, /* 99 */
180 /* 0x6a */ 0,
181 /* 0x6b */ KEY_SCROLLLOCK, /* 70 */
182 /* 0x6c */ 0,
183 /* 0x6d */ KEY_F10, /* 68 */
184 /* 0x6e */ KEY_COMPOSE, /* 127 */
185 /* 0x6f */ KEY_F12, /* 88 */
186 /* 0x70 */ 0,
187 /* 0x71 */ KEY_PAUSE, /* 119 */
188 /* 0x72 */ KEY_INSERT, /* 110 */
189 /* 0x73 */ KEY_HOME, /* 102 */
190 /* 0x74 */ KEY_PAGEUP, /* 104 */
191 /* 0x75 */ KEY_DELETE, /* 111 */
192 /* 0x76 */ KEY_F4, /* 62 */
193 /* 0x77 */ KEY_END, /* 107 */
194 /* 0x78 */ KEY_F2, /* 60 */
195 /* 0x79 */ KEY_PAGEDOWN, /* 109 */
196 /* 0x7a */ KEY_F1, /* 59 */
197 /* 0x7b */ KEY_RIGHTSHIFT, /* 54 */
198 /* 0x7c */ KEY_RIGHTALT, /* 100 */
199 /* 0x7d */ KEY_RIGHTCTRL, /* 97 */
200 /* 0x7e */ KEY_RIGHTMETA, /* 126 */
201 /* 0x7f */ KEY_POWER, /* 116 */
202};
203
204struct adbhid {
c7f7a569 205 struct input_dev *input;
1da177e4
LT		 206 int id;
207 int default_id;
208 int original_handler_id;
209 int current_handler_id;
210 int mouse_kind;
211 unsigned char *keycode;
212 char name[64];
213 char phys[32];
214 int flags;
215};
216
217#define FLAG_FN_KEY_PRESSED 0x00000001
218#define FLAG_POWER_FROM_FN 0x00000002
219#define FLAG_EMU_FWDEL_DOWN 0x00000004
220
221static struct adbhid *adbhid[16];
222
223static void adbhid_probe(void);
224
225static void adbhid_input_keycode(int, int, int, struct pt_regs *);
226
227static void init_trackpad(int id);
228static void init_trackball(int id);
229static void init_turbomouse(int id);
230static void init_microspeed(int id);
231static void init_ms_a3(int id);
232
233static struct adb_ids keyboard_ids;
234static struct adb_ids mouse_ids;
235static struct adb_ids buttons_ids;
236
1da177e4
LT		 237/* Kind of keyboard, see Apple technote 1152 */
238#define ADB_KEYBOARD_UNKNOWN 0
239#define ADB_KEYBOARD_ANSI 0x0100
240#define ADB_KEYBOARD_ISO 0x0200
241#define ADB_KEYBOARD_JIS 0x0300
242
243/* Kind of mouse */
244#define ADBMOUSE_STANDARD_100 0 /* Standard 100cpi mouse (handler 1) */
245#define ADBMOUSE_STANDARD_200 1 /* Standard 200cpi mouse (handler 2) */
246#define ADBMOUSE_EXTENDED 2 /* Apple Extended mouse (handler 4) */
247#define ADBMOUSE_TRACKBALL 3 /* TrackBall (handler 4) */
248#define ADBMOUSE_TRACKPAD 4 /* Apple's PowerBook trackpad (handler 4) */
249#define ADBMOUSE_TURBOMOUSE5 5 /* Turbomouse 5 (previously req. mousehack) */
250#define ADBMOUSE_MICROSPEED 6 /* Microspeed mouse (&trackball ?), MacPoint */
251#define ADBMOUSE_TRACKBALLPRO 7 /* Trackball Pro (special buttons) */
252#define ADBMOUSE_MS_A3 8 /* Mouse systems A3 trackball (handler 3) */
253#define ADBMOUSE_MACALLY2 9 /* MacAlly 2-button mouse */
254
255static void
256adbhid_keyboard_input(unsigned char *data, int nb, struct pt_regs *regs, int apoll)
257{
258 int id = (data[0] >> 4) & 0x0f;
259
260 if (!adbhid[id]) {
261 printk(KERN_ERR "ADB HID on ID %d not yet registered, packet %#02x, %#02x, %#02x, %#02x\n",
262 id, data[0], data[1], data[2], data[3]);
263 return;
264 }
265
266 /* first check this is from register 0 */
267 if (nb != 3 || (data[0] & 3) != KEYB_KEYREG)
268 return; /* ignore it */
269 adbhid_input_keycode(id, data[1], 0, regs);
270 if (!(data[2] == 0xff || (data[2] == 0x7f && data[1] == 0x7f)))
271 adbhid_input_keycode(id, data[2], 0, regs);
272}
273
274static void
275adbhid_input_keycode(int id, int keycode, int repeat, struct pt_regs *regs)
276{
277 struct adbhid *ahid = adbhid[id];
278 int up_flag;
279
280 up_flag = (keycode & 0x80);
281 keycode &= 0x7f;
282
283 switch (keycode) {
284 case ADB_KEY_CAPSLOCK: /* Generate down/up events for CapsLock everytime. */
c7f7a569
DT		 285 input_regs(ahid->input, regs);
286 input_report_key(ahid->input, KEY_CAPSLOCK, 1);
287 input_report_key(ahid->input, KEY_CAPSLOCK, 0);
288 input_sync(ahid->input);
1da177e4
LT		 289 return;
290#ifdef CONFIG_PPC_PMAC
291 case ADB_KEY_POWER_OLD: /* Power key on PBook 3400 needs remapping */
292 switch(pmac_call_feature(PMAC_FTR_GET_MB_INFO,
293 NULL, PMAC_MB_INFO_MODEL, 0)) {
294 case PMAC_TYPE_COMET:
295 case PMAC_TYPE_HOOPER:
296 case PMAC_TYPE_KANGA:
297 keycode = ADB_KEY_POWER;
298 }
299 break;
300 case ADB_KEY_POWER:
301 /* Fn + Command will produce a bogus "power" keycode */
302 if (ahid->flags & FLAG_FN_KEY_PRESSED) {
303 keycode = ADB_KEY_CMD;
304 if (up_flag)
305 ahid->flags &= ~FLAG_POWER_FROM_FN;
306 else
307 ahid->flags |= FLAG_POWER_FROM_FN;
308 } else if (ahid->flags & FLAG_POWER_FROM_FN) {
309 keycode = ADB_KEY_CMD;
310 ahid->flags &= ~FLAG_POWER_FROM_FN;
311 }
312 break;
313 case ADB_KEY_FN:
314 /* Keep track of the Fn key state */
315 if (up_flag) {
316 ahid->flags &= ~FLAG_FN_KEY_PRESSED;
317 /* Emulate Fn+delete = forward delete */
318 if (ahid->flags & FLAG_EMU_FWDEL_DOWN) {
319 ahid->flags &= ~FLAG_EMU_FWDEL_DOWN;
320 keycode = ADB_KEY_FWDEL;
321 break;
322 }
323 } else
324 ahid->flags |= FLAG_FN_KEY_PRESSED;
325 /* Swallow the key press */
326 return;
327 case ADB_KEY_DEL:
328 /* Emulate Fn+delete = forward delete */
329 if (ahid->flags & FLAG_FN_KEY_PRESSED) {
330 keycode = ADB_KEY_FWDEL;
331 if (up_flag)
332 ahid->flags &= ~FLAG_EMU_FWDEL_DOWN;
333 else
334 ahid->flags |= FLAG_EMU_FWDEL_DOWN;
335 }
336 break;
337#endif /* CONFIG_PPC_PMAC */
338 }
339
340 if (adbhid[id]->keycode[keycode]) {
c7f7a569
DT		 341 input_regs(adbhid[id]->input, regs);
342 input_report_key(adbhid[id]->input,
1da177e4 343 adbhid[id]->keycode[keycode], !up_flag);
c7f7a569 344 input_sync(adbhid[id]->input);
1da177e4
LT		 345 } else
346 printk(KERN_INFO "Unhandled ADB key (scancode %#02x) %s.\n", keycode,
347 up_flag ? "released" : "pressed");
348
349}
350
351static void
352adbhid_mouse_input(unsigned char *data, int nb, struct pt_regs *regs, int autopoll)
353{
354 int id = (data[0] >> 4) & 0x0f;
355
356 if (!adbhid[id]) {
357 printk(KERN_ERR "ADB HID on ID %d not yet registered\n", id);
358 return;
359 }
360
361 /*
362 Handler 1 -- 100cpi original Apple mouse protocol.
363 Handler 2 -- 200cpi original Apple mouse protocol.
364
365 For Apple's standard one-button mouse protocol the data array will
366 contain the following values:
367
368 BITS COMMENTS
369 data[0] = dddd 1100 ADB command: Talk, register 0, for device dddd.
370 data[1] = bxxx xxxx First button and x-axis motion.
371 data[2] = byyy yyyy Second button and y-axis motion.
372
373 Handler 4 -- Apple Extended mouse protocol.
374
375 For Apple's 3-button mouse protocol the data array will contain the
376 following values:
377
378 BITS COMMENTS
379 data[0] = dddd 1100 ADB command: Talk, register 0, for device dddd.
380 data[1] = bxxx xxxx Left button and x-axis motion.
381 data[2] = byyy yyyy Second button and y-axis motion.
382 data[3] = byyy bxxx Third button and fourth button. Y is additional
383 high bits of y-axis motion. XY is additional
384 high bits of x-axis motion.
385
386 MacAlly 2-button mouse protocol.
387
388 For MacAlly 2-button mouse protocol the data array will contain the
389 following values:
390
391 BITS COMMENTS
392 data[0] = dddd 1100 ADB command: Talk, register 0, for device dddd.
393 data[1] = bxxx xxxx Left button and x-axis motion.
394 data[2] = byyy yyyy Right button and y-axis motion.
395 data[3] = ???? ???? unknown
396 data[4] = ???? ???? unknown
397
398 */
399
400 /* If it's a trackpad, we alias the second button to the first.
401 NOTE: Apple sends an ADB flush command to the trackpad when
402 the first (the real) button is released. We could do
403 this here using async flush requests.
404 */
405 switch (adbhid[id]->mouse_kind)
406 {
407 case ADBMOUSE_TRACKPAD:
408 data[1] = (data[1] & 0x7f) | ((data[1] & data[2]) & 0x80);
409 data[2] = data[2] | 0x80;
410 break;
411 case ADBMOUSE_MICROSPEED:
412 data[1] = (data[1] & 0x7f) | ((data[3] & 0x01) << 7);
413 data[2] = (data[2] & 0x7f) | ((data[3] & 0x02) << 6);
414 data[3] = (data[3] & 0x77) | ((data[3] & 0x04) << 5)
415 | (data[3] & 0x08);
416 break;
417 case ADBMOUSE_TRACKBALLPRO:
418 data[1] = (data[1] & 0x7f) | (((data[3] & 0x04) << 5)
419 & ((data[3] & 0x08) << 4));
420 data[2] = (data[2] & 0x7f) | ((data[3] & 0x01) << 7);
421 data[3] = (data[3] & 0x77) | ((data[3] & 0x02) << 6);
422 break;
423 case ADBMOUSE_MS_A3:
424 data[1] = (data[1] & 0x7f) | ((data[3] & 0x01) << 7);
425 data[2] = (data[2] & 0x7f) | ((data[3] & 0x02) << 6);
426 data[3] = ((data[3] & 0x04) << 5);
427 break;
428 case ADBMOUSE_MACALLY2:
429 data[3] = (data[2] & 0x80) ? 0x80 : 0x00;
430 data[2] |= 0x80; /* Right button is mapped as button 3 */
431 nb=4;
432 break;
433 }
434
c7f7a569 435 input_regs(adbhid[id]->input, regs);
1da177e4 436
c7f7a569
DT		 437 input_report_key(adbhid[id]->input, BTN_LEFT, !((data[1] >> 7) & 1));
438 input_report_key(adbhid[id]->input, BTN_MIDDLE, !((data[2] >> 7) & 1));
1da177e4
LT		 439
440 if (nb >= 4 && adbhid[id]->mouse_kind != ADBMOUSE_TRACKPAD)
c7f7a569 441 input_report_key(adbhid[id]->input, BTN_RIGHT, !((data[3] >> 7) & 1));
1da177e4 442
c7f7a569 443 input_report_rel(adbhid[id]->input, REL_X,
1da177e4 444 ((data[2]&0x7f) < 64 ? (data[2]&0x7f) : (data[2]&0x7f)-128 ));
c7f7a569 445 input_report_rel(adbhid[id]->input, REL_Y,
1da177e4
LT		 446 ((data[1]&0x7f) < 64 ? (data[1]&0x7f) : (data[1]&0x7f)-128 ));
447
c7f7a569 448 input_sync(adbhid[id]->input);
1da177e4
LT		 449}
450
451static void
452adbhid_buttons_input(unsigned char *data, int nb, struct pt_regs *regs, int autopoll)
453{
454 int id = (data[0] >> 4) & 0x0f;
455
456 if (!adbhid[id]) {
457 printk(KERN_ERR "ADB HID on ID %d not yet registered\n", id);
458 return;
459 }
460
c7f7a569 461 input_regs(adbhid[id]->input, regs);
1da177e4
LT		 462
463 switch (adbhid[id]->original_handler_id) {
464 default:
465 case 0x02: /* Adjustable keyboard button device */
466 {
467 int down = (data[1] == (data[1] & 0xf));
468
469 switch (data[1] & 0x0f) {
470 case 0x0: /* microphone */
c7f7a569 471 input_report_key(adbhid[id]->input, KEY_SOUND, down);
1da177e4
LT		 472 break;
473
474 case 0x1: /* mute */
c7f7a569 475 input_report_key(adbhid[id]->input, KEY_MUTE, down);
1da177e4
LT		 476 break;
477
478 case 0x2: /* volume decrease */
c7f7a569 479 input_report_key(adbhid[id]->input, KEY_VOLUMEDOWN, down);
1da177e4
LT		 480 break;
481
482 case 0x3: /* volume increase */
c7f7a569 483 input_report_key(adbhid[id]->input, KEY_VOLUMEUP, down);
1da177e4
LT		 484 break;
485
486 default:
487 printk(KERN_INFO "Unhandled ADB_MISC event %02x, %02x, %02x, %02x\n",
488 data[0], data[1], data[2], data[3]);
489 break;
490 }
491 }
492 break;
493
494 case 0x1f: /* Powerbook button device */
495 {
496 int down = (data[1] == (data[1] & 0xf));
5474c120 497
1da177e4
LT		 498 /*
499 * XXX: Where is the contrast control for the passive?
500 * -- Cort
501 */
502
503 switch (data[1] & 0x0f) {
504 case 0x8: /* mute */
c7f7a569 505 input_report_key(adbhid[id]->input, KEY_MUTE, down);
1da177e4
LT		 506 break;
507
508 case 0x7: /* volume decrease */
c7f7a569 509 input_report_key(adbhid[id]->input, KEY_VOLUMEDOWN, down);
1da177e4
LT		 510 break;
511
512 case 0x6: /* volume increase */
c7f7a569 513 input_report_key(adbhid[id]->input, KEY_VOLUMEUP, down);
1da177e4
LT		 514 break;
515
516 case 0xb: /* eject */
c7f7a569 517 input_report_key(adbhid[id]->input, KEY_EJECTCD, down);
1da177e4
LT		 518 break;
519
520 case 0xa: /* brightness decrease */
521#ifdef CONFIG_PMAC_BACKLIGHT
4b755999 522 if (down)
5474c120
MH		 523 pmac_backlight_key_down();
524#endif
c7f7a569 525 input_report_key(adbhid[id]->input, KEY_BRIGHTNESSDOWN, down);
1da177e4
LT		 526 break;
527
528 case 0x9: /* brightness increase */
529#ifdef CONFIG_PMAC_BACKLIGHT
4b755999 530 if (down)
5474c120
MH		 531 pmac_backlight_key_up();
532#endif
c7f7a569 533 input_report_key(adbhid[id]->input, KEY_BRIGHTNESSUP, down);
1da177e4 534 break;
146a4b3b
AJ		 535
536 case 0xc: /* videomode switch */
c7f7a569 537 input_report_key(adbhid[id]->input, KEY_SWITCHVIDEOMODE, down);
146a4b3b
AJ		 538 break;
539
540 case 0xd: /* keyboard illumination toggle */
c7f7a569 541 input_report_key(adbhid[id]->input, KEY_KBDILLUMTOGGLE, down);
146a4b3b
AJ		 542 break;
543
544 case 0xe: /* keyboard illumination decrease */
c7f7a569 545 input_report_key(adbhid[id]->input, KEY_KBDILLUMDOWN, down);
146a4b3b
AJ		 546 break;
547
548 case 0xf:
549 switch (data[1]) {
550 case 0x8f:
551 case 0x0f:
552 /* keyboard illumination increase */
c7f7a569 553 input_report_key(adbhid[id]->input, KEY_KBDILLUMUP, down);
146a4b3b
AJ		 554 break;
555
556 case 0x7f:
557 case 0xff:
558 /* keypad overlay toogle */
559 break;
560
561 default:
562 printk(KERN_INFO "Unhandled ADB_MISC event %02x, %02x, %02x, %02x\n",
563 data[0], data[1], data[2], data[3]);
564 break;
565 }
566 break;
567 default:
568 printk(KERN_INFO "Unhandled ADB_MISC event %02x, %02x, %02x, %02x\n",
569 data[0], data[1], data[2], data[3]);
570 break;
1da177e4
LT		 571 }
572 }
573 break;
574 }
575
c7f7a569 576 input_sync(adbhid[id]->input);
1da177e4
LT		 577}
578
579static struct adb_request led_request;
580static int leds_pending[16];
581static int leds_req_pending;
582static int pending_devs[16];
583static int pending_led_start=0;
584static int pending_led_end=0;
585static DEFINE_SPINLOCK(leds_lock);
586
587static void leds_done(struct adb_request *req)
588{
589 int leds = 0, device = 0, pending = 0;
590 unsigned long flags;
591
592 spin_lock_irqsave(&leds_lock, flags);
593
594 if (pending_led_start != pending_led_end) {
595 device = pending_devs[pending_led_start];
596 leds = leds_pending[device] & 0xff;
597 leds_pending[device] = 0;
598 pending_led_start++;
599 pending_led_start = (pending_led_start < 16) ? pending_led_start : 0;
600 pending = leds_req_pending;
601 } else
602 leds_req_pending = 0;
603 spin_unlock_irqrestore(&leds_lock, flags);
604 if (pending)
605 adb_request(&led_request, leds_done, 0, 3,
606 ADB_WRITEREG(device, KEYB_LEDREG), 0xff, ~leds);
607}
608
609static void real_leds(unsigned char leds, int device)
610{
611 unsigned long flags;
612
613 spin_lock_irqsave(&leds_lock, flags);
614 if (!leds_req_pending) {
615 leds_req_pending = 1;
616 spin_unlock_irqrestore(&leds_lock, flags);
617 adb_request(&led_request, leds_done, 0, 3,
618 ADB_WRITEREG(device, KEYB_LEDREG), 0xff, ~leds);
619 return;
620 } else {
621 if (!(leds_pending[device] & 0x100)) {
622 pending_devs[pending_led_end] = device;
623 pending_led_end++;
624 pending_led_end = (pending_led_end < 16) ? pending_led_end : 0;
625 }
626 leds_pending[device] = leds | 0x100;
627 }
628 spin_unlock_irqrestore(&leds_lock, flags);
629}
630
631/*
632 * Event callback from the input module. Events that change the state of
633 * the hardware are processed here.
634 */
635static int adbhid_kbd_event(struct input_dev *dev, unsigned int type, unsigned int code, int value)
636{
637 struct adbhid *adbhid = dev->private;
638 unsigned char leds;
639
640 switch (type) {
641 case EV_LED:
642 leds = (test_bit(LED_SCROLLL, dev->led) ? 4 : 0)
643 | (test_bit(LED_NUML, dev->led) ? 1 : 0)
644 | (test_bit(LED_CAPSL, dev->led) ? 2 : 0);
645 real_leds(leds, adbhid->id);
646 return 0;
647 }
648
649 return -1;
650}
651
652static int
653adb_message_handler(struct notifier_block *this, unsigned long code, void *x)
654{
655 switch (code) {
656 case ADB_MSG_PRE_RESET:
657 case ADB_MSG_POWERDOWN:
658 /* Stop the repeat timer. Autopoll is already off at this point */
659 {
660 int i;
661 for (i = 1; i < 16; i++) {
662 if (adbhid[i])
c7f7a569 663 del_timer_sync(&adbhid[i]->input->timer);
1da177e4
LT		 664 }
665 }
666
667 /* Stop pending led requests */
668 while(leds_req_pending)
669 adb_poll();
670 break;
671
672 case ADB_MSG_POST_RESET:
673 adbhid_probe();
674 break;
675 }
676 return NOTIFY_DONE;
677}
678
c7f7a569 679static int
1da177e4
LT		 680adbhid_input_register(int id, int default_id, int original_handler_id,
681 int current_handler_id, int mouse_kind)
682{
c7f7a569
DT		 683 struct adbhid *hid;
684 struct input_dev *input_dev;
685 int err;
1da177e4
LT		 686 int i;
687
688 if (adbhid[id]) {
689 printk(KERN_ERR "Trying to reregister ADB HID on ID %d\n", id);
c7f7a569 690 return -EEXIST;
1da177e4
LT		 691 }
692
c7f7a569
DT		 693 adbhid[id] = hid = kzalloc(sizeof(struct adbhid), GFP_KERNEL);
694 input_dev = input_allocate_device();
695 if (!hid || !input_dev) {
696 err = -ENOMEM;
697 goto fail;
1da177e4 698
c7f7a569 699 }
1da177e4 700
c7f7a569
DT		 701 sprintf(hid->phys, "adb%d:%d.%02x/input", id, default_id, original_handler_id);
702
eb16292b 703 hid->input = input_dev;
c7f7a569
DT		 704 hid->id = default_id;
705 hid->original_handler_id = original_handler_id;
706 hid->current_handler_id = current_handler_id;
707 hid->mouse_kind = mouse_kind;
708 hid->flags = 0;
709 input_dev->private = hid;
710 input_dev->name = hid->name;
711 input_dev->phys = hid->phys;
712 input_dev->id.bustype = BUS_ADB;
713 input_dev->id.vendor = 0x0001;
714 input_dev->id.product = (id << 12) | (default_id << 8) | original_handler_id;
715 input_dev->id.version = 0x0100;
1da177e4
LT		 716
717 switch (default_id) {
718 case ADB_KEYBOARD:
c7f7a569
DT		 719 hid->keycode = kmalloc(sizeof(adb_to_linux_keycodes), GFP_KERNEL);
720 if (!hid->keycode) {
721 err = -ENOMEM;
722 goto fail;
1da177e4
LT		 723 }
724
c7f7a569 725 sprintf(hid->name, "ADB keyboard");
1da177e4 726
c7f7a569 727 memcpy(hid->keycode, adb_to_linux_keycodes, sizeof(adb_to_linux_keycodes));
1da177e4
LT		 728
729 printk(KERN_INFO "Detected ADB keyboard, type ");
730 switch (original_handler_id) {
731 default:
732 printk("<unknown>.\n");
c7f7a569 733 input_dev->id.version = ADB_KEYBOARD_UNKNOWN;
1da177e4
LT		 734 break;
735
736 case 0x01: case 0x02: case 0x03: case 0x06: case 0x08:
737 case 0x0C: case 0x10: case 0x18: case 0x1B: case 0x1C:
738 case 0xC0: case 0xC3: case 0xC6:
739 printk("ANSI.\n");
c7f7a569 740 input_dev->id.version = ADB_KEYBOARD_ANSI;
1da177e4
LT		 741 break;
742
743 case 0x04: case 0x05: case 0x07: case 0x09: case 0x0D:
744 case 0x11: case 0x14: case 0x19: case 0x1D: case 0xC1:
745 case 0xC4: case 0xC7:
746 printk("ISO, swapping keys.\n");
c7f7a569
DT		 747 input_dev->id.version = ADB_KEYBOARD_ISO;
748 i = hid->keycode[10];
749 hid->keycode[10] = hid->keycode[50];
750 hid->keycode[50] = i;
1da177e4
LT		 751 break;
752
753 case 0x12: case 0x15: case 0x16: case 0x17: case 0x1A:
754 case 0x1E: case 0xC2: case 0xC5: case 0xC8: case 0xC9:
755 printk("JIS.\n");
c7f7a569 756 input_dev->id.version = ADB_KEYBOARD_JIS;
1da177e4
LT		 757 break;
758 }
759
760 for (i = 0; i < 128; i++)
c7f7a569
DT		 761 if (hid->keycode[i])
762 set_bit(hid->keycode[i], input_dev->keybit);
763
764 input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_LED) | BIT(EV_REP);
765 input_dev->ledbit[0] = BIT(LED_SCROLLL) | BIT(LED_CAPSL) | BIT(LED_NUML);
766 input_dev->event = adbhid_kbd_event;
767 input_dev->keycodemax = 127;
768 input_dev->keycodesize = 1;
1da177e4
LT		 769 break;
770
771 case ADB_MOUSE:
c7f7a569 772 sprintf(hid->name, "ADB mouse");
1da177e4 773
c7f7a569
DT		 774 input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_REL);
775 input_dev->keybit[LONG(BTN_MOUSE)] = BIT(BTN_LEFT) | BIT(BTN_MIDDLE) | BIT(BTN_RIGHT);
776 input_dev->relbit[0] = BIT(REL_X) | BIT(REL_Y);
1da177e4
LT		 777 break;
778
779 case ADB_MISC:
780 switch (original_handler_id) {
781 case 0x02: /* Adjustable keyboard button device */
c7f7a569
DT		 782 sprintf(hid->name, "ADB adjustable keyboard buttons");
783 input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_REP);
784 set_bit(KEY_SOUND, input_dev->keybit);
785 set_bit(KEY_MUTE, input_dev->keybit);
786 set_bit(KEY_VOLUMEUP, input_dev->keybit);
787 set_bit(KEY_VOLUMEDOWN, input_dev->keybit);
1da177e4
LT		 788 break;
789 case 0x1f: /* Powerbook button device */
c7f7a569
DT		 790 sprintf(hid->name, "ADB Powerbook buttons");
791 input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_REP);
792 set_bit(KEY_MUTE, input_dev->keybit);
793 set_bit(KEY_VOLUMEUP, input_dev->keybit);
794 set_bit(KEY_VOLUMEDOWN, input_dev->keybit);
795 set_bit(KEY_BRIGHTNESSUP, input_dev->keybit);
796 set_bit(KEY_BRIGHTNESSDOWN, input_dev->keybit);
797 set_bit(KEY_EJECTCD, input_dev->keybit);
798 set_bit(KEY_SWITCHVIDEOMODE, input_dev->keybit);
799 set_bit(KEY_KBDILLUMTOGGLE, input_dev->keybit);
800 set_bit(KEY_KBDILLUMDOWN, input_dev->keybit);
801 set_bit(KEY_KBDILLUMUP, input_dev->keybit);
1da177e4
LT		 802 break;
803 }
c7f7a569 804 if (hid->name[0])
1da177e4
LT		 805 break;
806 /* else fall through */
807
808 default:
809 printk(KERN_INFO "Trying to register unknown ADB device to input layer.\n");
c7f7a569
DT		 810 err = -ENODEV;
811 goto fail;
1da177e4
LT		 812 }
813
c7f7a569 814 input_dev->keycode = hid->keycode;
1da177e4 815
c7f7a569 816 input_register_device(input_dev);
1da177e4
LT		 817
818 if (default_id == ADB_KEYBOARD) {
819 /* HACK WARNING!! This should go away as soon there is an utility
820 * to control that for event devices.
821 */
c7f7a569
DT		 822 input_dev->rep[REP_DELAY] = 500; /* input layer default: 250 */
823 input_dev->rep[REP_PERIOD] = 66; /* input layer default: 33 */
1da177e4 824 }
c7f7a569
DT		 825
826 return 0;
827
828 fail: input_free_device(input_dev);
829 kfree(hid);
830 adbhid[id] = NULL;
831 return err;
1da177e4
LT		 832}
833
834static void adbhid_input_unregister(int id)
835{
c7f7a569 836 input_unregister_device(adbhid[id]->input);
6044ec88 837 kfree(adbhid[id]->keycode);
1da177e4
LT		 838 kfree(adbhid[id]);
839 adbhid[id] = NULL;
840}
841
842
843static u16
844adbhid_input_reregister(int id, int default_id, int org_handler_id,
845 int cur_handler_id, int mk)
846{
847 if (adbhid[id]) {
c7f7a569 848 if (adbhid[id]->input->id.product !=
1da177e4
LT		 849 ((id << 12)|(default_id << 8)|org_handler_id)) {
850 adbhid_input_unregister(id);
851 adbhid_input_register(id, default_id, org_handler_id,
852 cur_handler_id, mk);
853 }
854 } else
855 adbhid_input_register(id, default_id, org_handler_id,
856 cur_handler_id, mk);
857 return 1<<id;
858}
859
860static void
861adbhid_input_devcleanup(u16 exist)
862{
863 int i;
864 for(i=1; i<16; i++)
865 if (adbhid[i] && !(exist&(1<<i)))
866 adbhid_input_unregister(i);
867}
868
869static void
870adbhid_probe(void)
871{
872 struct adb_request req;
873 int i, default_id, org_handler_id, cur_handler_id;
874 u16 reg = 0;
875
876 adb_register(ADB_MOUSE, 0, &mouse_ids, adbhid_mouse_input);
877 adb_register(ADB_KEYBOARD, 0, &keyboard_ids, adbhid_keyboard_input);
878 adb_register(ADB_MISC, 0, &buttons_ids, adbhid_buttons_input);
879
880 for (i = 0; i < keyboard_ids.nids; i++) {
881 int id = keyboard_ids.id[i];
882
883 adb_get_infos(id, &default_id, &org_handler_id);
884
885 /* turn off all leds */
886 adb_request(&req, NULL, ADBREQ_SYNC, 3,
887 ADB_WRITEREG(id, KEYB_LEDREG), 0xff, 0xff);
888
889 /* Enable full feature set of the keyboard
890 ->get it to send separate codes for left and right shift,
891 control, option keys */
892#if 0 /* handler 5 doesn't send separate codes for R modifiers */
893 if (adb_try_handler_change(id, 5))
894 printk("ADB keyboard at %d, handler set to 5\n", id);
895 else
896#endif
897 if (adb_try_handler_change(id, 3))
898 printk("ADB keyboard at %d, handler set to 3\n", id);
899 else
900 printk("ADB keyboard at %d, handler 1\n", id);
901
902 adb_get_infos(id, &default_id, &cur_handler_id);
903 reg |= adbhid_input_reregister(id, default_id, org_handler_id,
904 cur_handler_id, 0);
905 }
906
907 for (i = 0; i < buttons_ids.nids; i++) {
908 int id = buttons_ids.id[i];
909
910 adb_get_infos(id, &default_id, &org_handler_id);
911 reg |= adbhid_input_reregister(id, default_id, org_handler_id,
912 org_handler_id, 0);
913 }
914
915 /* Try to switch all mice to handler 4, or 2 for three-button
916 mode and full resolution. */
917 for (i = 0; i < mouse_ids.nids; i++) {
918 int id = mouse_ids.id[i];
919 int mouse_kind;
920
921 adb_get_infos(id, &default_id, &org_handler_id);
922
923 if (adb_try_handler_change(id, 4)) {
924 printk("ADB mouse at %d, handler set to 4", id);
925 mouse_kind = ADBMOUSE_EXTENDED;
926 }
927 else if (adb_try_handler_change(id, 0x2F)) {
928 printk("ADB mouse at %d, handler set to 0x2F", id);
929 mouse_kind = ADBMOUSE_MICROSPEED;
930 }
931 else if (adb_try_handler_change(id, 0x42)) {
932 printk("ADB mouse at %d, handler set to 0x42", id);
933 mouse_kind = ADBMOUSE_TRACKBALLPRO;
934 }
935 else if (adb_try_handler_change(id, 0x66)) {
936 printk("ADB mouse at %d, handler set to 0x66", id);
937 mouse_kind = ADBMOUSE_MICROSPEED;
938 }
939 else if (adb_try_handler_change(id, 0x5F)) {
940 printk("ADB mouse at %d, handler set to 0x5F", id);
941 mouse_kind = ADBMOUSE_MICROSPEED;
942 }
943 else if (adb_try_handler_change(id, 3)) {
944 printk("ADB mouse at %d, handler set to 3", id);
945 mouse_kind = ADBMOUSE_MS_A3;
946 }
947 else if (adb_try_handler_change(id, 2)) {
948 printk("ADB mouse at %d, handler set to 2", id);
949 mouse_kind = ADBMOUSE_STANDARD_200;
950 }
951 else {
952 printk("ADB mouse at %d, handler 1", id);
953 mouse_kind = ADBMOUSE_STANDARD_100;
954 }
955
956 if ((mouse_kind == ADBMOUSE_TRACKBALLPRO)
957 || (mouse_kind == ADBMOUSE_MICROSPEED)) {
958 init_microspeed(id);
959 } else if (mouse_kind == ADBMOUSE_MS_A3) {
960 init_ms_a3(id);
961 } else if (mouse_kind == ADBMOUSE_EXTENDED) {
962 /*
963 * Register 1 is usually used for device
964 * identification. Here, we try to identify
965 * a known device and call the appropriate
966 * init function.
967 */
968 adb_request(&req, NULL, ADBREQ_SYNC | ADBREQ_REPLY, 1,
969 ADB_READREG(id, 1));
970
971 if ((req.reply_len) &&
972 (req.reply[1] == 0x9a) && ((req.reply[2] == 0x21)
973 || (req.reply[2] == 0x20))) {
974 mouse_kind = ADBMOUSE_TRACKBALL;
975 init_trackball(id);
976 }
977 else if ((req.reply_len >= 4) &&
978 (req.reply[1] == 0x74) && (req.reply[2] == 0x70) &&
979 (req.reply[3] == 0x61) && (req.reply[4] == 0x64)) {
980 mouse_kind = ADBMOUSE_TRACKPAD;
981 init_trackpad(id);
982 }
983 else if ((req.reply_len >= 4) &&
984 (req.reply[1] == 0x4b) && (req.reply[2] == 0x4d) &&
985 (req.reply[3] == 0x4c) && (req.reply[4] == 0x31)) {
986 mouse_kind = ADBMOUSE_TURBOMOUSE5;
987 init_turbomouse(id);
988 }
989 else if ((req.reply_len == 9) &&
990 (req.reply[1] == 0x4b) && (req.reply[2] == 0x4f) &&
991 (req.reply[3] == 0x49) && (req.reply[4] == 0x54)) {
992 if (adb_try_handler_change(id, 0x42)) {
993 printk("\nADB MacAlly 2-button mouse at %d, handler set to 0x42", id);
994 mouse_kind = ADBMOUSE_MACALLY2;
995 }
996 }
997 }
998 printk("\n");
999
1000 adb_get_infos(id, &default_id, &cur_handler_id);
1001 reg |= adbhid_input_reregister(id, default_id, org_handler_id,
1002 cur_handler_id, mouse_kind);
1003 }
1004 adbhid_input_devcleanup(reg);
1005}
1006
1007static void
1008init_trackpad(int id)
1009{
1010 struct adb_request req;
1011 unsigned char r1_buffer[8];
1012
1013 printk(" (trackpad)");
1014
1015 adb_request(&req, NULL, ADBREQ_SYNC | ADBREQ_REPLY, 1,
1016 ADB_READREG(id,1));
1017 if (req.reply_len < 8)
1018 printk("bad length for reg. 1\n");
1019 else
1020 {
1021 memcpy(r1_buffer, &req.reply[1], 8);
1022
1023 adb_request(&req, NULL, ADBREQ_SYNC, 9,
1024 ADB_WRITEREG(id,1),
1025 r1_buffer[0],
1026 r1_buffer[1],
1027 r1_buffer[2],
1028 r1_buffer[3],
1029 r1_buffer[4],
1030 r1_buffer[5],
1031 0x0d,
1032 r1_buffer[7]);
1033
1034 adb_request(&req, NULL, ADBREQ_SYNC, 9,
1035 ADB_WRITEREG(id,2),
1036 0x99,
1037 0x94,
1038 0x19,
1039 0xff,
1040 0xb2,
1041 0x8a,
1042 0x1b,
1043 0x50);
1044
1045 adb_request(&req, NULL, ADBREQ_SYNC, 9,
1046 ADB_WRITEREG(id,1),
1047 r1_buffer[0],
1048 r1_buffer[1],
1049 r1_buffer[2],
1050 r1_buffer[3],
1051 r1_buffer[4],
1052 r1_buffer[5],
1053 0x03, /*r1_buffer[6],*/
1054 r1_buffer[7]);
1055
1056 /* Without this flush, the trackpad may be locked up */
1057 adb_request(&req, NULL, ADBREQ_SYNC, 1, ADB_FLUSH(id));
1058 }
1059}
1060
1061static void
1062init_trackball(int id)
1063{
1064 struct adb_request req;
1065
1066 printk(" (trackman/mouseman)");
1067
1068 adb_request(&req, NULL, ADBREQ_SYNC, 3,
1069 ADB_WRITEREG(id,1), 00,0x81);
1070
1071 adb_request(&req, NULL, ADBREQ_SYNC, 3,
1072 ADB_WRITEREG(id,1), 01,0x81);
1073
1074 adb_request(&req, NULL, ADBREQ_SYNC, 3,
1075 ADB_WRITEREG(id,1), 02,0x81);
1076
1077 adb_request(&req, NULL, ADBREQ_SYNC, 3,
1078 ADB_WRITEREG(id,1), 03,0x38);
1079
1080 adb_request(&req, NULL, ADBREQ_SYNC, 3,
1081 ADB_WRITEREG(id,1), 00,0x81);
1082
1083 adb_request(&req, NULL, ADBREQ_SYNC, 3,
1084 ADB_WRITEREG(id,1), 01,0x81);
1085
1086 adb_request(&req, NULL, ADBREQ_SYNC, 3,
1087 ADB_WRITEREG(id,1), 02,0x81);
1088
1089 adb_request(&req, NULL, ADBREQ_SYNC, 3,
1090 ADB_WRITEREG(id,1), 03,0x38);
1091}
1092
1093static void
1094init_turbomouse(int id)
1095{
1096 struct adb_request req;
1097
1098 printk(" (TurboMouse 5)");
1099
1100 adb_request(&req, NULL, ADBREQ_SYNC, 1, ADB_FLUSH(id));
1101
1102 adb_request(&req, NULL, ADBREQ_SYNC, 1, ADB_FLUSH(3));
1103
1104 adb_request(&req, NULL, ADBREQ_SYNC, 9,
1105 ADB_WRITEREG(3,2),
1106 0xe7,
1107 0x8c,
1108 0,
1109 0,
1110 0,
1111 0xff,
1112 0xff,
1113 0x94);
1114
1115 adb_request(&req, NULL, ADBREQ_SYNC, 1, ADB_FLUSH(3));
1116
1117 adb_request(&req, NULL, ADBREQ_SYNC, 9,
1118 ADB_WRITEREG(3,2),
1119 0xa5,
1120 0x14,
1121 0,
1122 0,
1123 0x69,
1124 0xff,
1125 0xff,
1126 0x27);
1127}
1128
1129static void
1130init_microspeed(int id)
1131{
1132 struct adb_request req;
1133
1134 printk(" (Microspeed/MacPoint or compatible)");
1135
1136 adb_request(&req, NULL, ADBREQ_SYNC, 1, ADB_FLUSH(id));
1137
1138 /* This will initialize mice using the Microspeed, MacPoint and
1139 other compatible firmware. Bit 12 enables extended protocol.
1140
1141 Register 1 Listen (4 Bytes)
1142 0 - 3 Button is mouse (set also for double clicking!!!)
1143 4 - 7 Button is locking (affects change speed also)
1144 8 - 11 Button changes speed
1145 12 1 = Extended mouse mode, 0 = normal mouse mode
1146 13 - 15 unused 0
1147 16 - 23 normal speed
1148 24 - 31 changed speed
1149
1150 Register 1 talk holds version and product identification information.
1151 Register 1 Talk (4 Bytes):
1152 0 - 7 Product code
1153 8 - 23 undefined, reserved
1154 24 - 31 Version number
1155
1156 Speed 0 is max. 1 to 255 set speed in increments of 1/256 of max.
1157 */
1158 adb_request(&req, NULL, ADBREQ_SYNC, 5,
1159 ADB_WRITEREG(id,1),
1160 0x20, /* alt speed = 0x20 (rather slow) */
1161 0x00, /* norm speed = 0x00 (fastest) */
1162 0x10, /* extended protocol, no speed change */
1163 0x07); /* all buttons enabled as mouse buttons, no locking */
1164
1165
1166 adb_request(&req, NULL, ADBREQ_SYNC, 1, ADB_FLUSH(id));
1167}
1168
1169static void
1170init_ms_a3(int id)
1171{
1172 struct adb_request req;
1173
1174 printk(" (Mouse Systems A3 Mouse, or compatible)");
1175 adb_request(&req, NULL, ADBREQ_SYNC, 3,
1176 ADB_WRITEREG(id, 0x2),
1177 0x00,
1178 0x07);
1179
1180 adb_request(&req, NULL, ADBREQ_SYNC, 1, ADB_FLUSH(id));
1181}
1182
1183static int __init adbhid_init(void)
1184{
1185#ifndef CONFIG_MAC
e8222502
BH		 1186 if (!machine_is(chrp) && !machine_is(powermac))
1187 return 0;
1da177e4
LT		 1188#endif
1189
1190 led_request.complete = 1;
1191
1192 adbhid_probe();
1193
e041c683
AS		 1194 blocking_notifier_chain_register(&adb_client_list,
1195 &adbhid_adb_notifier);
1da177e4
LT		 1196
1197 return 0;
1198}
1199
1200static void __exit adbhid_exit(void)
1201{
1202}
1203
1204module_init(adbhid_init);
1205module_exit(adbhid_exit);
Linux 6.x block layer and io_uring tree(s)