/* * $Id: hid-input.c,v 1.2 2002/04/23 00:59:25 rdamazio Exp $ * * Copyright (c) 2000-2001 Vojtech Pavlik * * USB HID to Linux Input mapping */ /* * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * * Should you need to contact me, the author, you can do so either by * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail: * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic */ #include <linux/module.h> #include <linux/slab.h> #include <linux/kernel.h> #include <linux/usb/input.h> #undef DEBUG #include "hid.h" #define unk KEY_UNKNOWN static const unsigned char hid_keyboard[256] = { 0, 0, 0, 0, 30, 48, 46, 32, 18, 33, 34, 35, 23, 36, 37, 38, 50, 49, 24, 25, 16, 19, 31, 20, 22, 47, 17, 45, 21, 44, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 28, 1, 14, 15, 57, 12, 13, 26, 27, 43, 43, 39, 40, 41, 51, 52, 53, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 87, 88, 99, 70,119,110,102,104,111,107,109,106, 105,108,103, 69, 98, 55, 74, 78, 96, 79, 80, 81, 75, 76, 77, 71, 72, 73, 82, 83, 86,127,116,117,183,184,185,186,187,188,189,190, 191,192,193,194,134,138,130,132,128,129,131,137,133,135,136,113, 115,114,unk,unk,unk,121,unk, 89, 93,124, 92, 94, 95,unk,unk,unk, 122,123, 90, 91, 85,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk, unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk, unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk, unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk, unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk, 29, 42, 56,125, 97, 54,100,126,164,166,165,163,161,115,114,113, 150,158,159,128,136,177,178,176,142,152,173,140,unk,unk,unk,unk }; static const struct { __s32 x; __s32 y; } hid_hat_to_axis[] = {{ 0, 0}, { 0,-1}, { 1,-1}, { 1, 0}, { 1, 1}, { 0, 1}, {-1, 1}, {-1, 0}, {-1,-1}}; #define map_abs(c) do { usage->code = c; usage->type = EV_ABS; bit = input->absbit; max = ABS_MAX; } while (0) #define map_rel(c) do { usage->code = c; usage->type = EV_REL; bit = input->relbit; max = REL_MAX; } while (0) #define map_key(c) do { usage->code = c; usage->type = EV_KEY; bit = input->keybit; max = KEY_MAX; } while (0) #define map_led(c) do { usage->code = c; usage->type = EV_LED; bit = input->ledbit; max = LED_MAX; } while (0) #define map_abs_clear(c) do { map_abs(c); clear_bit(c, bit); } while (0) #define map_key_clear(c) do { map_key(c); clear_bit(c, bit); } while (0) #ifdef CONFIG_USB_HIDINPUT_POWERBOOK struct hidinput_key_translation { u16 from; u16 to; u8 flags; }; #define POWERBOOK_FLAG_FKEY 0x01 static struct hidinput_key_translation powerbook_fn_keys[] = { { KEY_BACKSPACE, KEY_DELETE }, { KEY_F1, KEY_BRIGHTNESSDOWN, POWERBOOK_FLAG_FKEY }, { KEY_F2, KEY_BRIGHTNESSUP, POWERBOOK_FLAG_FKEY }, { KEY_F3, KEY_MUTE, POWERBOOK_FLAG_FKEY }, { KEY_F4, KEY_VOLUMEDOWN, POWERBOOK_FLAG_FKEY }, { KEY_F5, KEY_VOLUMEUP, POWERBOOK_FLAG_FKEY }, { KEY_F6, KEY_NUMLOCK, POWERBOOK_FLAG_FKEY }, { KEY_F7, KEY_SWITCHVIDEOMODE, POWERBOOK_FLAG_FKEY }, { KEY_F8, KEY_KBDILLUMTOGGLE, POWERBOOK_FLAG_FKEY }, { KEY_F9, KEY_KBDILLUMDOWN, POWERBOOK_FLAG_FKEY }, { KEY_F10, KEY_KBDILLUMUP, POWERBOOK_FLAG_FKEY }, { KEY_UP, KEY_PAGEUP }, { KEY_DOWN, KEY_PAGEDOWN }, { KEY_LEFT, KEY_HOME }, { KEY_RIGHT, KEY_END }, { } }; static struct hidinput_key_translation powerbook_numlock_keys[] = { { KEY_J, KEY_KP1 }, { KEY_K, KEY_KP2 }, { KEY_L, KEY_KP3 }, { KEY_U, KEY_KP4 }, { KEY_I, KEY_KP5 }, { KEY_O, KEY_KP6 }, { KEY_7, KEY_KP7 }, { KEY_8, KEY_KP8 }, { KEY_9, KEY_KP9 }, { KEY_M, KEY_KP0 }, { KEY_DOT, KEY_KPDOT }, { KEY_SLASH, KEY_KPPLUS }, { KEY_SEMICOLON, KEY_KPMINUS }, { KEY_P, KEY_KPASTERISK }, { KEY_MINUS, KEY_KPEQUAL }, { KEY_0, KEY_KPSLASH }, { KEY_F6, KEY_NUMLOCK }, { KEY_KPENTER, KEY_KPENTER }, { KEY_BACKSPACE, KEY_BACKSPACE }, { } }; static struct hidinput_key_translation powerbook_iso_keyboard[] = { { KEY_GRAVE, KEY_102ND }, { KEY_102ND, KEY_GRAVE }, { } }; static int usbhid_pb_fnmode = 1; module_param_named(pb_fnmode, usbhid_pb_fnmode, int, 0644); MODULE_PARM_DESC(pb_fnmode, "Mode of fn key on PowerBooks (0 = disabled, 1 = fkeyslast, 2 = fkeysfirst)"); static struct hidinput_key_translation *find_translation(struct hidinput_key_translation *table, u16 from) { struct hidinput_key_translation *trans; /* Look for the translation */ for (trans = table; trans->from; trans++) if (trans->from == from) return trans; return NULL; } static int hidinput_pb_event(struct hid_device *hid, struct input_dev *input, struct hid_usage *usage, __s32 value) { struct hidinput_key_translation *trans; if (usage->code == KEY_FN) { if (value) hid->quirks |= HID_QUIRK_POWERBOOK_FN_ON; else hid->quirks &= ~HID_QUIRK_POWERBOOK_FN_ON; input_event(input, usage->type, usage->code, value); return 1; } if (usbhid_pb_fnmode) { int do_translate; trans = find_translation(powerbook_fn_keys, usage->code); if (trans) { if (test_bit(usage->code, hid->pb_pressed_fn)) do_translate = 1; else if (trans->flags & POWERBOOK_FLAG_FKEY) do_translate = (usbhid_pb_fnmode == 2 && (hid->quirks & HID_QUIRK_POWERBOOK_FN_ON)) || (usbhid_pb_fnmode == 1 && !(hid->quirks & HID_QUIRK_POWERBOOK_FN_ON)); else do_translate = (hid->quirks & HID_QUIRK_POWERBOOK_FN_ON); if (do_translate) { if (value) set_bit(usage->code, hid->pb_pressed_fn); else clear_bit(usage->code, hid->pb_pressed_fn); input_event(input, usage->type, trans->to, value); return 1; } } if (test_bit(usage->code, hid->pb_pressed_numlock) || test_bit(LED_NUML, input->led)) { trans = find_translation(powerbook_numlock_keys, usage->code); if (trans) { if (value) set_bit(usage->code, hid->pb_pressed_numlock); else clear_bit(usage->code, hid->pb_pressed_numlock); input_event(input, usage->type, trans->to, value); } return 1; } } if (hid->quirks & HID_QUIRK_POWERBOOK_ISO_KEYBOARD) { trans = find_translation(powerbook_iso_keyboard, usage->code); if (trans) { input_event(input, usage->type, trans->to, value); return 1; } } return 0; } static void hidinput_pb_setup(struct input_dev *input) { struct hidinput_key_translation *trans; set_bit(KEY_NUMLOCK, input->keybit); /* Enable all needed keys */ for (trans = powerbook_fn_keys; trans->from; trans++) set_bit(trans->to, input->keybit); for (trans = powerbook_numlock_keys; trans->from; trans++) set_bit(trans->to, input->keybit); for (trans = powerbook_iso_keyboard; trans->from; trans++) set_bit(trans->to, input->keybit); } #else static inline int hidinput_pb_event(struct hid_device *hid, struct input_dev *input, struct hid_usage *usage, __s32 value) { return 0; } static inline void hidinput_pb_setup(struct input_dev *input) { } #endif static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_field *field, struct hid_usage *usage) { struct input_dev *input = hidinput->input; struct hid_device *device = input->private; int max = 0, code; unsigned long *bit = NULL; field->hidinput = hidinput; #ifdef DEBUG printk(KERN_DEBUG "Mapping: "); resolv_usage(usage->hid); printk(" ---> "); #endif if (field->flags & HID_MAIN_ITEM_CONSTANT) goto ignore; switch (usage->hid & HID_USAGE_PAGE) { case HID_UP_UNDEFINED: goto ignore; case HID_UP_KEYBOARD: set_bit(EV_REP, input->evbit); if ((usage->hid & HID_USAGE) < 256) { if (!hid_keyboard[usage->hid & HID_USAGE]) goto ignore; map_key_clear(hid_keyboard[usage->hid & HID_USAGE]); } else map_key(KEY_UNKNOWN); break; case HID_UP_BUTTON: code = ((usage->hid - 1) & 0xf); switch (field->application) { case HID_GD_MOUSE: case HID_GD_POINTER: code += 0x110; break; case HID_GD_JOYSTICK: code += 0x120; break; case HID_GD_GAMEPAD: code += 0x130; break; default: switch (field->physical) { case HID_GD_MOUSE: case HID_GD_POINTER: code += 0x110; break; case HID_GD_JOYSTICK: code += 0x120; break; case HID_GD_GAMEPAD: code += 0x130; break; default: code += 0x100; } } map_key(code); break; case HID_UP_SIMULATION: switch (usage->hid & 0xffff) { case 0xba: map_abs(ABS_RUDDER); break; case 0xbb: map_abs(ABS_THROTTLE); break; case 0xc4: map_abs(ABS_GAS); break; case 0xc5: map_abs(ABS_BRAKE); break; case 0xc8: map_abs(ABS_WHEEL); break; default: goto ignore; } break; case HID_UP_GENDESK: if ((usage->hid & 0xf0) == 0x80) { /* SystemControl */ switch (usage->hid & 0xf) { case 0x1: map_key_clear(KEY_POWER); break; case 0x2: map_key_clear(KEY_SLEEP); break; case 0x3: map_key_clear(KEY_WAKEUP); break; default: goto unknown; } break; } if ((usage->hid & 0xf0) == 0x90) { /* D-pad */ switch (usage->hid) { case HID_GD_UP: usage->hat_dir = 1; break; case HID_GD_DOWN: usage->hat_dir = 5; break; case HID_GD_RIGHT: usage->hat_dir = 3; break; case HID_GD_LEFT: usage->hat_dir = 7; break; default: goto unknown; } if (field->dpad) { map_abs(field->dpad); goto ignore; } map_abs(ABS_HAT0X); break; } switch (usage->hid) { /* These usage IDs map directly to the usage codes. */ case HID_GD_X: case HID_GD_Y: case HID_GD_Z: case HID_GD_RX: case HID_GD_RY: case HID_GD_RZ: case HID_GD_SLIDER: case HID_GD_DIAL: case HID_GD_WHEEL: if (field->flags & HID_MAIN_ITEM_RELATIVE) map_rel(usage->hid & 0xf); else map_abs(usage->hid & 0xf); break; case HID_GD_HATSWITCH: usage->hat_min = field->logical_minimum; usage->hat_max = field->logical_maximum; map_abs(ABS_HAT0X); break; case HID_GD_START: map_key_clear(BTN_START); break; case HID_GD_SELECT: map_key_clear(BTN_SELECT); break; default: goto unknown; } break; case HID_UP_LED: if (((usage->hid - 1) & 0xffff) >= LED_MAX) goto ignore; map_led((usage->hid - 1) & 0xffff); break; case HID_UP_DIGITIZER: switch (usage->hid & 0xff) { case 0x30: /* TipPressure */ if (!test_bit(BTN_TOUCH, input->keybit)) { device->quirks |= HID_QUIRK_NOTOUCH; set_bit(EV_KEY, input->evbit); set_bit(BTN_TOUCH, input->keybit); } map_abs_clear(ABS_PRESSURE); break; case 0x32: /* InRange */ switch (field->physical & 0xff) { case 0x21: map_key(BTN_TOOL_MOUSE); break; case 0x22: map_key(BTN_TOOL_FINGER); break; default: map_key(BTN_TOOL_PEN); break; } break; case 0x3c: /* Invert */ map_key_clear(BTN_TOOL_RUBBER); break; case 0x33: /* Touch */ case 0x42: /* TipSwitch */ case 0x43: /* TipSwitch2 */ device->quirks &= ~HID_QUIRK_NOTOUCH; map_key_clear(BTN_TOUCH); break; case 0x44: /* BarrelSwitch */ map_key_clear(BTN_STYLUS); break; default: goto unknown; } break; case HID_UP_CONSUMER: /* USB HUT v1.1, pages 56-62 */ switch (usage->hid & HID_USAGE) { case 0x000: goto ignore; case 0x034: map_key_clear(KEY_SLEEP); break; case 0x036: map_key_clear(BTN_MISC); break; case 0x045: map_key_clear(KEY_RADIO); break; case 0x08a: map_key_clear(KEY_WWW); break; case 0x08d: map_key_clear(KEY_PROGRAM); break; case 0x095: map_key_clear(KEY_HELP); break; case 0x09c: map_key_clear(KEY_CHANNELUP); break; case 0x09d: map_key_clear(KEY_CHANNELDOWN); break; case 0x0b0: map_key_clear(KEY_PLAY); break; case 0x0b1: map_key_clear(KEY_PAUSE); break; case 0x0b2: map_key_clear(KEY_RECORD); break; case 0x0b3: map_key_clear(KEY_FASTFORWARD); break; case 0x0b4: map_key_clear(KEY_REWIND); break; case 0x0b5: map_key_clear(KEY_NEXTSONG); break; case 0x0b6: map_key_clear(KEY_PREVIOUSSONG); break; case 0x0b7: map_key_clear(KEY_STOPCD); break; case 0x0b8: map_key_clear(KEY_EJECTCD); break; case 0x0cd: map_key_clear(KEY_PLAYPAUSE); break; case 0x0e0: map_abs_clear(ABS_VOLUME); break; case 0x0e2: map_key_clear(KEY_MUTE); break; case 0x0e5: map_key_clear(KEY_BASSBOOST); break; case 0x0e9: map_key_clear(KEY_VOLUMEUP); break; case 0x0ea: map_key_clear(KEY_VOLUMEDOWN); break; case 0x183: map_key_clear(KEY_CONFIG); break; case 0x18a: map_key_clear(KEY_MAIL); break; case 0x192: map_key_clear(KEY_CALC); break; case 0x194: map_key_clear(KEY_FILE); break; case 0x1a7: map_key_clear(KEY_DOCUMENTS); break; case 0x201: map_key_clear(KEY_NEW); break; case 0x207: map_key_clear(KEY_SAVE); break; case 0x208: map_key_clear(KEY_PRINT); break; case 0x209: map_key_clear(KEY_PROPS); break; case 0x21a: map_key_clear(KEY_UNDO); break; case 0x21b: map_key_clear(KEY_COPY); break; case 0x21c: map_key_clear(KEY_CUT); break; case 0x21d: map_key_clear(KEY_PASTE); break; case 0x221: map_key_clear(KEY_FIND); break; case 0x223: map_key_clear(KEY_HOMEPAGE); break; case 0x224: map_key_clear(KEY_BACK); break; case 0x225: map_key_clear(KEY_FORWARD); break; case 0x226: map_key_clear(KEY_STOP); break; case 0x227: map_key_clear(KEY_REFRESH); break; case 0x22a: map_key_clear(KEY_BOOKMARKS); break; case 0x233: map_key_clear(KEY_SCROLLUP); break; case 0x234: map_key_clear(KEY_SCROLLDOWN); break; case 0x238: map_rel(REL_HWHEEL); break; case 0x279: map_key_clear(KEY_REDO); break; case 0x289: map_key_clear(KEY_REPLY); break; case 0x28b: map_key_clear(KEY_FORWARDMAIL); break; case 0x28c: map_key_clear(KEY_SEND); break; /* Reported on a Cherry Cymotion keyboard */ case 0x301: map_key_clear(KEY_PROG1); break; case 0x302: map_key_clear(KEY_PROG2); break; case 0x303: map_key_clear(KEY_PROG3); break; default: goto ignore; } break; case HID_UP_HPVENDOR: /* Reported on a Dutch layout HP5308 */ set_bit(EV_REP, input->evbit); switch (usage->hid & HID_USAGE) { case 0x021: map_key_clear(KEY_PRINT); break; case 0x070: map_key_clear(KEY_HP); break; case 0x071: map_key_clear(KEY_CAMERA); break; case 0x072: map_key_clear(KEY_SOUND); break; case 0x073: map_key_clear(KEY_QUESTION); break; case 0x080: map_key_clear(KEY_EMAIL); break; case 0x081: map_key_clear(KEY_CHAT); break; case 0x082: map_key_clear(KEY_SEARCH); break; case 0x083: map_key_clear(KEY_CONNECT); break; case 0x084: map_key_clear(KEY_FINANCE); break; case 0x085: map_key_clear(KEY_SPORT); break; case 0x086: map_key_clear(KEY_SHOP); break; default: goto ignore; } break; case HID_UP_MSVENDOR: goto ignore; case HID_UP_CUSTOM: /* Reported on Logitech and Powerbook USB keyboards */ set_bit(EV_REP, input->evbit); switch(usage->hid & HID_USAGE) { case 0x003: /* The fn key on Apple PowerBooks */ map_key_clear(KEY_FN); hidinput_pb_setup(input); break; default: goto ignore; } break; case HID_UP_LOGIVENDOR: /* Reported on Logitech Ultra X Media Remote */ set_bit(EV_REP, input->evbit); switch(usage->hid & HID_USAGE) { case 0x004: map_key_clear(KEY_AGAIN); break; case 0x00d: map_key_clear(KEY_HOME); break; case 0x024: map_key_clear(KEY_SHUFFLE); break; case 0x025: map_key_clear(KEY_TV); break; case 0x026: map_key_clear(KEY_MENU); break; case 0x031: map_key_clear(KEY_AUDIO); break; case 0x032: map_key_clear(KEY_TEXT); break; case 0x033: map_key_clear(KEY_LAST); break; case 0x047: map_key_clear(KEY_MP3); break; case 0x048: map_key_clear(KEY_DVD); break; case 0x049: map_key_clear(KEY_MEDIA); break; case 0x04a: map_key_clear(KEY_VIDEO); break; case 0x04b: map_key_clear(KEY_ANGLE); break; case 0x04c: map_key_clear(KEY_LANGUAGE); break; case 0x04d: map_key_clear(KEY_SUBTITLE); break; case 0x051: map_key_clear(KEY_RED); break; case 0x052: map_key_clear(KEY_CLOSE); break; default: goto ignore; } break; case HID_UP_PID: switch(usage->hid & HID_USAGE) { case 0xa4: map_key_clear(BTN_DEAD); break; default: goto ignore; } break; default: unknown: if (field->report_size == 1) { if (field->report->type == HID_OUTPUT_REPORT) { map_led(LED_MISC); break; } map_key(BTN_MISC); break; } if (field->flags & HID_MAIN_ITEM_RELATIVE) { map_rel(REL_MISC); break; } map_abs(ABS_MISC); break; } if (device->quirks & HID_QUIRK_MIGHTYMOUSE) { if (usage->hid == HID_GD_Z) map_rel(REL_HWHEEL); else if (usage->code == BTN_1) map_key(BTN_2); else if (usage->code == BTN_2) map_key(BTN_1); } if ((device->quirks & (HID_QUIRK_2WHEEL_MOUSE_HACK_7 | HID_QUIRK_2WHEEL_MOUSE_HACK_5)) && (usage->type == EV_REL) && (usage->code == REL_WHEEL)) set_bit(REL_HWHEEL, bit); if (((device->quirks & HID_QUIRK_2WHEEL_MOUSE_HACK_5) && (usage->hid == 0x00090005)) || ((device->quirks & HID_QUIRK_2WHEEL_MOUSE_HACK_7) && (usage->hid == 0x00090007))) goto ignore; if ((device->quirks & HID_QUIRK_BAD_RELATIVE_KEYS) && usage->type == EV_KEY && (field->flags & HID_MAIN_ITEM_RELATIVE)) field->flags &= ~HID_MAIN_ITEM_RELATIVE; set_bit(usage->type, input->evbit); while (usage->code <= max && test_and_set_bit(usage->code, bit)) usage->code = find_next_zero_bit(bit, max + 1, usage->code); if (usage->code > max) goto ignore; if (usage->type == EV_ABS) { int a = field->logical_minimum; int b = field->logical_maximum; if ((device->quirks & HID_QUIRK_BADPAD) && (usage->code == ABS_X || usage->code == ABS_Y)) { a = field->logical_minimum = 0; b = field->logical_maximum = 255; } if (field->application == HID_GD_GAMEPAD || field->application == HID_GD_JOYSTICK) input_set_abs_params(input, usage->code, a, b, (b - a) >> 8, (b - a) >> 4); else input_set_abs_params(input, usage->code, a, b, 0, 0); } if (usage->type == EV_ABS && (usage->hat_min < usage->hat_max || usage->hat_dir)) { int i; for (i = usage->code; i < usage->code + 2 && i <= max; i++) { input_set_abs_params(input, i, -1, 1, 0, 0); set_bit(i, input->absbit); } if (usage->hat_dir && !field->dpad) field->dpad = usage->code; } #ifdef DEBUG resolv_event(usage->type, usage->code); printk("\n"); #endif return; ignore: #ifdef DEBUG printk("IGNORED\n"); #endif return; } void hidinput_hid_event(struct hid_device *hid, struct hid_field *field, struct hid_usage *usage, __s32 value) { struct input_dev *input; int *quirks = &hid->quirks; if (!field->hidinput) return; input = field->hidinput->input; if (!usage->type) return; if (((hid->quirks & HID_QUIRK_2WHEEL_MOUSE_HACK_5) && (usage->hid == 0x00090005)) || ((hid->quirks & HID_QUIRK_2WHEEL_MOUSE_HACK_7) && (usage->hid == 0x00090007))) { if (value) hid->quirks |= HID_QUIRK_2WHEEL_MOUSE_HACK_ON; else hid->quirks &= ~HID_QUIRK_2WHEEL_MOUSE_HACK_ON; return; } if ((hid->quirks & HID_QUIRK_INVERT_HWHEEL) && (usage->code == REL_HWHEEL)) { input_event(input, usage->type, usage->code, -value); return; } if ((hid->quirks & HID_QUIRK_2WHEEL_MOUSE_HACK_ON) && (usage->code == REL_WHEEL)) { input_event(input, usage->type, REL_HWHEEL, value); return; } if ((hid->quirks & HID_QUIRK_POWERBOOK_HAS_FN) && hidinput_pb_event(hid, input, usage, value)) return; if (usage->hat_min < usage->hat_max || usage->hat_dir) { int hat_dir = usage->hat_dir; if (!hat_dir) hat_dir = (value - usage->hat_min) * 8 / (usage->hat_max - usage->hat_min + 1) + 1; if (hat_dir < 0 || hat_dir > 8) hat_dir = 0; input_event(input, usage->type, usage->code , hid_hat_to_axis[hat_dir].x); input_event(input, usage->type, usage->code + 1, hid_hat_to_axis[hat_dir].y); return; } if (usage->hid == (HID_UP_DIGITIZER | 0x003c)) { /* Invert */ *quirks = value ? (*quirks | HID_QUIRK_INVERT) : (*quirks & ~HID_QUIRK_INVERT); return; } if (usage->hid == (HID_UP_DIGITIZER | 0x0032)) { /* InRange */ if (value) { input_event(input, usage->type, (*quirks & HID_QUIRK_INVERT) ? BTN_TOOL_RUBBER : usage->code, 1); return; } input_event(input, usage->type, usage->code, 0); input_event(input, usage->type, BTN_TOOL_RUBBER, 0); return; } if (usage->hid == (HID_UP_DIGITIZER | 0x0030) && (*quirks & HID_QUIRK_NOTOUCH)) { /* Pressure */ int a = field->logical_minimum; int b = field->logical_maximum; input_event(input, EV_KEY, BTN_TOUCH, value > a + ((b - a) >> 3)); } if (usage->hid == (HID_UP_PID | 0x83UL)) { /* Simultaneous Effects Max */ dbg("Maximum Effects - %d",value); return; } if (usage->hid == (HID_UP_PID | 0x7fUL)) { dbg("PID Pool Report\n"); return; } if ((usage->type == EV_KEY) && (usage->code == 0)) /* Key 0 is "unassigned", not KEY_UNKNOWN */ return; input_event(input, usage->type, usage->code, value); if ((field->flags & HID_MAIN_ITEM_RELATIVE) && (usage->type == EV_KEY)) input_event(input, usage->type, usage->code, 0); } void hidinput_report_event(struct hid_device *hid, struct hid_report *report) { struct hid_input *hidinput; list_for_each_entry(hidinput, &hid->inputs, list) input_sync(hidinput->input); } static int hidinput_find_field(struct hid_device *hid, unsigned int type, unsigned int code, struct hid_field **field) { struct hid_report *report; int i, j; list_for_each_entry(report, &hid->report_enum[HID_OUTPUT_REPORT].report_list, list) { for (i = 0; i < report->maxfield; i++) { *field = report->field[i]; for (j = 0; j < (*field)->maxusage; j++) if ((*field)->usage[j].type == type && (*field)->usage[j].code == code) return j; } } return -1; } static int hidinput_input_event(struct input_dev *dev, unsigned int type, unsigned int code, int value) { struct hid_device *hid = dev->private; struct hid_field *field; int offset; if (type == EV_FF) return input_ff_event(dev, type, code, value); if (type != EV_LED) return -1; if ((offset = hidinput_find_field(hid, type, code, &field)) == -1) { warn("event field not found"); return -1; } hid_set_field(field, offset, value); hid_submit_report(hid, field->report, USB_DIR_OUT); return 0; } static int hidinput_open(struct input_dev *dev) { struct hid_device *hid = dev->private; return hid_open(hid); } static void hidinput_close(struct input_dev *dev) { struct hid_device *hid = dev->private; hid_close(hid); } /* * Register the input device; print a message. * Configure the input layer interface * Read all reports and initialize the absolute field values. */ int hidinput_connect(struct hid_device *hid) { struct usb_device *dev = hid->dev; struct hid_report *report; struct hid_input *hidinput = NULL; struct input_dev *input_dev; int i, j, k; INIT_LIST_HEAD(&hid->inputs); for (i = 0; i < hid->maxcollection; i++) if (hid->collection[i].type == HID_COLLECTION_APPLICATION || hid->collection[i].type == HID_COLLECTION_PHYSICAL) if (IS_INPUT_APPLICATION(hid->collection[i].usage)) break; if (i == hid->maxcollection) return -1; for (k = HID_INPUT_REPORT; k <= HID_OUTPUT_REPORT; k++) list_for_each_entry(report, &hid->report_enum[k].report_list, list) { if (!report->maxfield) continue; if (!hidinput) { hidinput = kzalloc(sizeof(*hidinput), GFP_KERNEL); input_dev = input_allocate_device(); if (!hidinput || !input_dev) { kfree(hidinput); input_free_device(input_dev); err("Out of memory during hid input probe"); return -1; } input_dev->private = hid; input_dev->event = hidinput_input_event; input_dev->open = hidinput_open; input_dev->close = hidinput_close; input_dev->name = hid->name; input_dev->phys = hid->phys; input_dev->uniq = hid->uniq; usb_to_input_id(dev, &input_dev->id); input_dev->cdev.dev = &hid->intf->dev; hidinput->input = input_dev; list_add_tail(&hidinput->list, &hid->inputs); } for (i = 0; i < report->maxfield; i++) for (j = 0; j < report->field[i]->maxusage; j++) hidinput_configure_usage(hidinput, report->field[i], report->field[i]->usage + j); if (hid->quirks & HID_QUIRK_MULTI_INPUT) { /* This will leave hidinput NULL, so that it * allocates another one if we have more inputs on * the same interface. Some devices (e.g. Happ's * UGCI) cram a lot of unrelated inputs into the * same interface. */ hidinput->report = report; input_register_device(hidinput->input); hidinput = NULL; } } /* This only gets called when we are a single-input (most of the * time). IOW, not a HID_QUIRK_MULTI_INPUT. The hid_ff_init() is * only useful in this case, and not for multi-input quirks. */ if (hidinput) { hid_ff_init(hid); input_register_device(hidinput->input); } return 0; } void hidinput_disconnect(struct hid_device *hid) { struct hid_input *hidinput, *next; list_for_each_entry_safe(hidinput, next, &hid->inputs, list) { list_del(&hidinput->list); input_unregister_device(hidinput->input); kfree(hidinput); } }