1274 lines · c
1// SPDX-License-Identifier: GPL-2.02/*3 * drivers/macintosh/adbhid.c4 *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 Mackerras9 * 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 by14 * Benjamin Herrenschmidt. Adapted from code in MkLinux15 * and reworked.16 * 17 * Supported devices:18 *19 * - Standard 1 button mouse20 * - 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/kbd35 * Move to syfs36 */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_PMAC50#include <asm/backlight.h>51#include <asm/pmac_feature.h>52#endif53 54MODULE_AUTHOR("Franz Sirl <Franz.Sirl-kernel@lauterbach.com>");55 56static int restore_capslock_events;57module_param(restore_capslock_events, int, 0644);58MODULE_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 65static int adb_message_handler(struct notifier_block *, unsigned long, void *);66static struct notifier_block adbhid_adb_notifier = {67 .notifier_call = adb_message_handler,68};69 70/* Some special keys */71#define ADB_KEY_DEL 0x3372#define ADB_KEY_CMD 0x3773#define ADB_KEY_CAPSLOCK 0x3974#define ADB_KEY_FN 0x3f75#define ADB_KEY_FWDEL 0x7576#define ADB_KEY_POWER_OLD 0x7e77#define ADB_KEY_POWER 0x7f78 79static 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 210struct 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 0x00000001224#define FLAG_POWER_FROM_FN 0x00000002225#define FLAG_EMU_FWDEL_DOWN 0x00000004226#define FLAG_CAPSLOCK_TRANSLATE 0x00000008227#define FLAG_CAPSLOCK_DOWN 0x00000010228#define FLAG_CAPSLOCK_IGNORE_NEXT 0x00000020229#define FLAG_POWER_KEY_PRESSED 0x00000040230 231static struct adbhid *adbhid[16];232 233static void adbhid_probe(void);234 235static void adbhid_input_keycode(int, int, int);236 237static void init_trackpad(int id);238static void init_trackball(int id);239static void init_turbomouse(int id);240static void init_microspeed(int id);241static void init_ms_a3(int id);242 243static struct adb_ids keyboard_ids;244static struct adb_ids mouse_ids;245static struct adb_ids buttons_ids;246 247/* Kind of keyboard, see Apple technote 1152 */248#define ADB_KEYBOARD_UNKNOWN 0249#define ADB_KEYBOARD_ANSI 0x0100250#define ADB_KEYBOARD_ISO 0x0200251#define ADB_KEYBOARD_JIS 0x0300252 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 265static void266adbhid_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 284static void285adbhid_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 happens299 * just after resume. */300 ahid->flags &= ~FLAG_CAPSLOCK_IGNORE_NEXT;301 return;302 } else {303 ahid->flags |= FLAG_CAPSLOCK_TRANSLATE304 | FLAG_CAPSLOCK_DOWN;305 }306 } else if (scancode == 0xff &&307 !(ahid->flags & FLAG_POWER_KEY_PRESSED)) {308 /* Scancode 0xff usually signifies that the capslock309 * key was either pressed or released, or that the310 * 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_PMAC340 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 else354 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 else362 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 } else379 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 else388 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 } else399 pr_info("Unhandled ADB key (scancode %#02x) %s.\n", keycode,400 up_flag ? "released" : "pressed");401 402}403 404static void405adbhid_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 will419 contain the following values:420 421 BITS COMMENTS422 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 the429 following values:430 431 BITS COMMENTS432 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 additional436 high bits of y-axis motion. XY is additional437 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 the442 following values:443 444 BITS COMMENTS445 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] = ???? ???? unknown449 data[4] = ???? ???? unknown450 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 when455 the first (the real) button is released. We could do456 this here using async flush requests.457 */458 switch (adbhid[id]->mouse_kind)459 {460 case ADBMOUSE_TRACKPAD:461 data[1] = (data[1] & 0x7f) | ((data[1] & data[2]) & 0x80);462 data[2] = data[2] | 0x80;463 break;464 case ADBMOUSE_MICROSPEED:465 data[1] = (data[1] & 0x7f) | ((data[3] & 0x01) << 7);466 data[2] = (data[2] & 0x7f) | ((data[3] & 0x02) << 6);467 data[3] = (data[3] & 0x77) | ((data[3] & 0x04) << 5)468 | (data[3] & 0x08);469 break;470 case ADBMOUSE_TRACKBALLPRO:471 data[1] = (data[1] & 0x7f) | (((data[3] & 0x04) << 5)472 & ((data[3] & 0x08) << 4));473 data[2] = (data[2] & 0x7f) | ((data[3] & 0x01) << 7);474 data[3] = (data[3] & 0x77) | ((data[3] & 0x02) << 6);475 break;476 case ADBMOUSE_MS_A3:477 data[1] = (data[1] & 0x7f) | ((data[3] & 0x01) << 7);478 data[2] = (data[2] & 0x7f) | ((data[3] & 0x02) << 6);479 data[3] = ((data[3] & 0x04) << 5);480 break;481 case ADBMOUSE_MACALLY2:482 data[3] = (data[2] & 0x80) ? 0x80 : 0x00;483 data[2] |= 0x80; /* Right button is mapped as button 3 */484 nb=4;485 break;486 }487 488 input_report_key(adbhid[id]->input, BTN_LEFT, !((data[1] >> 7) & 1));489 input_report_key(adbhid[id]->input, BTN_MIDDLE, !((data[2] >> 7) & 1));490 491 if (nb >= 4 && adbhid[id]->mouse_kind != ADBMOUSE_TRACKPAD)492 input_report_key(adbhid[id]->input, BTN_RIGHT, !((data[3] >> 7) & 1));493 494 input_report_rel(adbhid[id]->input, REL_X,495 ((data[2]&0x7f) < 64 ? (data[2]&0x7f) : (data[2]&0x7f)-128 ));496 input_report_rel(adbhid[id]->input, REL_Y,497 ((data[1]&0x7f) < 64 ? (data[1]&0x7f) : (data[1]&0x7f)-128 ));498 499 input_sync(adbhid[id]->input);500}501 502static void503adbhid_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 * -- Cort550 */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_BACKLIGHT571 if (down)572 pmac_backlight_key_down();573#endif574 input_report_key(adbhid[id]->input, KEY_BRIGHTNESSDOWN, down);575 break;576 577 case 0x9: /* brightness increase */578#ifdef CONFIG_PMAC_BACKLIGHT579 if (down)580 pmac_backlight_key_up();581#endif582 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 628static struct adb_request led_request;629static int leds_pending[16];630static int leds_req_pending;631static int pending_devs[16];632static int pending_led_start;633static int pending_led_end;634static DEFINE_SPINLOCK(leds_lock);635 636static void leds_done(struct adb_request *req)637{638 int leds = 0, device = 0, pending = 0;639 unsigned long flags;640 641 spin_lock_irqsave(&leds_lock, flags);642 643 if (pending_led_start != pending_led_end) {644 device = pending_devs[pending_led_start];645 leds = leds_pending[device] & 0xff;646 leds_pending[device] = 0;647 pending_led_start++;648 pending_led_start = (pending_led_start < 16) ? pending_led_start : 0;649 pending = leds_req_pending;650 } else651 leds_req_pending = 0;652 spin_unlock_irqrestore(&leds_lock, flags);653 if (pending)654 adb_request(&led_request, leds_done, 0, 3,655 ADB_WRITEREG(device, KEYB_LEDREG), 0xff, ~leds);656}657 658static void real_leds(unsigned char leds, int device)659{660 unsigned long flags;661 662 spin_lock_irqsave(&leds_lock, flags);663 if (!leds_req_pending) {664 leds_req_pending = 1;665 spin_unlock_irqrestore(&leds_lock, flags); 666 adb_request(&led_request, leds_done, 0, 3,667 ADB_WRITEREG(device, KEYB_LEDREG), 0xff, ~leds);668 return;669 } else {670 if (!(leds_pending[device] & 0x100)) {671 pending_devs[pending_led_end] = device;672 pending_led_end++;673 pending_led_end = (pending_led_end < 16) ? pending_led_end : 0;674 }675 leds_pending[device] = leds | 0x100;676 }677 spin_unlock_irqrestore(&leds_lock, flags); 678}679 680/*681 * Event callback from the input module. Events that change the state of682 * the hardware are processed here.683 */684static int adbhid_kbd_event(struct input_dev *dev, unsigned int type, unsigned int code, int value)685{686 struct adbhid *adbhid = input_get_drvdata(dev);687 unsigned char leds;688 689 switch (type) {690 case EV_LED:691 leds = (test_bit(LED_SCROLLL, dev->led) ? 4 : 0) |692 (test_bit(LED_NUML, dev->led) ? 1 : 0) |693 (test_bit(LED_CAPSL, dev->led) ? 2 : 0);694 real_leds(leds, adbhid->id);695 return 0;696 }697 698 return -1;699}700 701static void702adbhid_kbd_capslock_remember(void)703{704 struct adbhid *ahid;705 int i;706 707 for (i = 1; i < 16; i++) {708 ahid = adbhid[i];709 710 if (ahid && ahid->id == ADB_KEYBOARD)711 if (ahid->flags & FLAG_CAPSLOCK_TRANSLATE)712 ahid->flags |= FLAG_CAPSLOCK_IGNORE_NEXT;713 }714}715 716static int717adb_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 will736 * send a "capslock down" key event. This confuses the737 * restore_capslock_events logic. Remember if the capslock738 * LED was on before suspend so the unwanted key event can739 * be ignored after resume. */740 if (restore_capslock_events)741 adbhid_kbd_capslock_remember();742 743 break;744 745 case ADB_MSG_POST_RESET:746 adbhid_probe();747 break;748 }749 return NOTIFY_DONE;750}751 752static int753adbhid_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 utility897 * 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 914static 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 923static u16924adbhid_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 } else935 adbhid_input_register(id, default_id, org_handler_id,936 cur_handler_id, mk);937 return 1<<id;938}939 940static void941adbhid_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 949static void950adbhid_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 keyboard970 ->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#endif975 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-button993 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 device1037 * identification. Here, we try to identify1038 * a known device and call the appropriate1039 * 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 1084static void 1085init_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 else1095 {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 1136static void 1137init_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 1166static void1167init_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 1200static void1201init_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 and1208 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 speed1214 12 1 = Extended mouse mode, 0 = normal mouse mode1215 13 - 15 unused 01216 16 - 23 normal speed1217 24 - 31 changed speed1218 1219 Register 1 talk holds version and product identification information.1220 Register 1 Talk (4 Bytes):1221 0 - 7 Product code1222 8 - 23 undefined, reserved1223 24 - 31 Version number1224 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 1238static void1239init_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 1251static int __init adbhid_init(void)1252{1253#ifndef CONFIG_MAC1254 if (!machine_is(chrp) && !machine_is(powermac))1255 return 0;1256#endif1257 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 1268static void __exit adbhid_exit(void)1269{1270}1271 1272module_init(adbhid_init);1273module_exit(adbhid_exit);1274