1d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright/* 2d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright * Copyright (C) 2005 The Android Open Source Project 3d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright * 4d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright * Licensed under the Apache License, Version 2.0 (the "License"); 5d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright * you may not use this file except in compliance with the License. 6d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright * You may obtain a copy of the License at 7d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright * 8d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright * http://www.apache.org/licenses/LICENSE-2.0 9d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright * 10d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright * Unless required by applicable law or agreed to in writing, software 11d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright * distributed under the License is distributed on an "AS IS" BASIS, 12d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright * See the License for the specific language governing permissions and 14d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright * limitations under the License. 15d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright */ 16d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 175aa26b274595f12e98abaad364cf9e3061b2dfe7Mark Salyzyn#include <assert.h> 185aa26b274595f12e98abaad364cf9e3061b2dfe7Mark Salyzyn#include <dirent.h> 195aa26b274595f12e98abaad364cf9e3061b2dfe7Mark Salyzyn#include <errno.h> 205aa26b274595f12e98abaad364cf9e3061b2dfe7Mark Salyzyn#include <fcntl.h> 215aa26b274595f12e98abaad364cf9e3061b2dfe7Mark Salyzyn#include <inttypes.h> 225aa26b274595f12e98abaad364cf9e3061b2dfe7Mark Salyzyn#include <memory.h> 235aa26b274595f12e98abaad364cf9e3061b2dfe7Mark Salyzyn#include <stdint.h> 245aa26b274595f12e98abaad364cf9e3061b2dfe7Mark Salyzyn#include <stdio.h> 255aa26b274595f12e98abaad364cf9e3061b2dfe7Mark Salyzyn#include <stdlib.h> 265aa26b274595f12e98abaad364cf9e3061b2dfe7Mark Salyzyn#include <string.h> 275aa26b274595f12e98abaad364cf9e3061b2dfe7Mark Salyzyn#include <sys/epoll.h> 285aa26b274595f12e98abaad364cf9e3061b2dfe7Mark Salyzyn#include <sys/limits.h> 295aa26b274595f12e98abaad364cf9e3061b2dfe7Mark Salyzyn#include <sys/inotify.h> 305aa26b274595f12e98abaad364cf9e3061b2dfe7Mark Salyzyn#include <sys/ioctl.h> 315aa26b274595f12e98abaad364cf9e3061b2dfe7Mark Salyzyn#include <sys/utsname.h> 325aa26b274595f12e98abaad364cf9e3061b2dfe7Mark Salyzyn#include <unistd.h> 335aa26b274595f12e98abaad364cf9e3061b2dfe7Mark Salyzyn 34d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright#define LOG_TAG "EventHub" 35d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 36d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright// #define LOG_NDEBUG 0 37d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 38d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright#include "EventHub.h" 39d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 40d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright#include <hardware_legacy/power.h> 41d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 42d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright#include <cutils/properties.h> 43677d87ec50b9e8cdf88c61be07ad8c6d7f68f9ddDan Albert#include <openssl/sha.h> 44d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright#include <utils/Log.h> 45d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright#include <utils/Timers.h> 46d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright#include <utils/threads.h> 47d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright#include <utils/Errors.h> 48d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 49d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright#include <input/KeyLayoutMap.h> 50d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright#include <input/KeyCharacterMap.h> 51d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright#include <input/VirtualKeyMap.h> 52d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 53d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright/* this macro is used to tell if "bit" is set in "array" 54d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright * it selects a byte from the array, and does a boolean AND 55d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright * operation with a byte that only has the relevant bit set. 56d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright * eg. to check for the 12th bit, we do (array[1] & 1<<4) 57d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright */ 58d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright#define test_bit(bit, array) (array[bit/8] & (1<<(bit%8))) 59d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 60d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright/* this macro computes the number of bytes needed to represent a bit array of the specified size */ 61d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright#define sizeof_bit_array(bits) ((bits + 7) / 8) 62d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 63d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright#define INDENT " " 64d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright#define INDENT2 " " 65d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright#define INDENT3 " " 66d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 67d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wrightnamespace android { 68d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 69d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wrightstatic const char *WAKE_LOCK_ID = "KeyEvents"; 70d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wrightstatic const char *DEVICE_PATH = "/dev/input"; 71d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 72d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright/* return the larger integer */ 73d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wrightstatic inline int max(int v1, int v2) 74d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright{ 75d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright return (v1 > v2) ? v1 : v2; 76d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright} 77d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 78d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wrightstatic inline const char* toString(bool value) { 79d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright return value ? "true" : "false"; 80d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright} 81d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 82d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wrightstatic String8 sha1(const String8& in) { 83677d87ec50b9e8cdf88c61be07ad8c6d7f68f9ddDan Albert SHA_CTX ctx; 84677d87ec50b9e8cdf88c61be07ad8c6d7f68f9ddDan Albert SHA1_Init(&ctx); 85677d87ec50b9e8cdf88c61be07ad8c6d7f68f9ddDan Albert SHA1_Update(&ctx, reinterpret_cast<const u_char*>(in.string()), in.size()); 86677d87ec50b9e8cdf88c61be07ad8c6d7f68f9ddDan Albert u_char digest[SHA_DIGEST_LENGTH]; 87677d87ec50b9e8cdf88c61be07ad8c6d7f68f9ddDan Albert SHA1_Final(digest, &ctx); 88d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 89d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright String8 out; 90677d87ec50b9e8cdf88c61be07ad8c6d7f68f9ddDan Albert for (size_t i = 0; i < SHA_DIGEST_LENGTH; i++) { 91d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright out.appendFormat("%02x", digest[i]); 92d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 93d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright return out; 94d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright} 95d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 96d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wrightstatic void getLinuxRelease(int* major, int* minor) { 97d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright struct utsname info; 98d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (uname(&info) || sscanf(info.release, "%d.%d", major, minor) <= 0) { 99d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright *major = 0, *minor = 0; 100d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ALOGE("Could not get linux version: %s", strerror(errno)); 101d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 102d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright} 103d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 104d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright// --- Global Functions --- 105d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 106d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wrightuint32_t getAbsAxisUsage(int32_t axis, uint32_t deviceClasses) { 107d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // Touch devices get dibs on touch-related axes. 108d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (deviceClasses & INPUT_DEVICE_CLASS_TOUCH) { 109d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright switch (axis) { 110d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright case ABS_X: 111d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright case ABS_Y: 112d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright case ABS_PRESSURE: 113d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright case ABS_TOOL_WIDTH: 114d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright case ABS_DISTANCE: 115d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright case ABS_TILT_X: 116d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright case ABS_TILT_Y: 117d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright case ABS_MT_SLOT: 118d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright case ABS_MT_TOUCH_MAJOR: 119d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright case ABS_MT_TOUCH_MINOR: 120d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright case ABS_MT_WIDTH_MAJOR: 121d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright case ABS_MT_WIDTH_MINOR: 122d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright case ABS_MT_ORIENTATION: 123d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright case ABS_MT_POSITION_X: 124d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright case ABS_MT_POSITION_Y: 125d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright case ABS_MT_TOOL_TYPE: 126d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright case ABS_MT_BLOB_ID: 127d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright case ABS_MT_TRACKING_ID: 128d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright case ABS_MT_PRESSURE: 129d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright case ABS_MT_DISTANCE: 130d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright return INPUT_DEVICE_CLASS_TOUCH; 131d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 132d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 133d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 134842500e146cdc0036b2a1a3e2acc7626d005128bMichael Wright // External stylus gets the pressure axis 135842500e146cdc0036b2a1a3e2acc7626d005128bMichael Wright if (deviceClasses & INPUT_DEVICE_CLASS_EXTERNAL_STYLUS) { 136842500e146cdc0036b2a1a3e2acc7626d005128bMichael Wright if (axis == ABS_PRESSURE) { 137842500e146cdc0036b2a1a3e2acc7626d005128bMichael Wright return INPUT_DEVICE_CLASS_EXTERNAL_STYLUS; 138842500e146cdc0036b2a1a3e2acc7626d005128bMichael Wright } 139842500e146cdc0036b2a1a3e2acc7626d005128bMichael Wright } 140842500e146cdc0036b2a1a3e2acc7626d005128bMichael Wright 141d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // Joystick devices get the rest. 142d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright return deviceClasses & INPUT_DEVICE_CLASS_JOYSTICK; 143d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright} 144d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 145d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright// --- EventHub::Device --- 146d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 147d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael WrightEventHub::Device::Device(int fd, int32_t id, const String8& path, 148d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright const InputDeviceIdentifier& identifier) : 149d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright next(NULL), 150d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright fd(fd), id(id), path(path), identifier(identifier), 151d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright classes(0), configuration(NULL), virtualKeyMap(NULL), 152d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ffEffectPlaying(false), ffEffectId(-1), controllerNumber(0), 153d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright timestampOverrideSec(0), timestampOverrideUsec(0) { 154d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright memset(keyBitmask, 0, sizeof(keyBitmask)); 155d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright memset(absBitmask, 0, sizeof(absBitmask)); 156d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright memset(relBitmask, 0, sizeof(relBitmask)); 157d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright memset(swBitmask, 0, sizeof(swBitmask)); 158d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright memset(ledBitmask, 0, sizeof(ledBitmask)); 159d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright memset(ffBitmask, 0, sizeof(ffBitmask)); 160d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright memset(propBitmask, 0, sizeof(propBitmask)); 161d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright} 162d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 163d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael WrightEventHub::Device::~Device() { 164d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright close(); 165d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright delete configuration; 166d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright delete virtualKeyMap; 167d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright} 168d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 169d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wrightvoid EventHub::Device::close() { 170d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (fd >= 0) { 171d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ::close(fd); 172d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright fd = -1; 173d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 174d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright} 175d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 176d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 177d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright// --- EventHub --- 178d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 179d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wrightconst uint32_t EventHub::EPOLL_ID_INOTIFY; 180d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wrightconst uint32_t EventHub::EPOLL_ID_WAKE; 181d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wrightconst int EventHub::EPOLL_SIZE_HINT; 182d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wrightconst int EventHub::EPOLL_MAX_EVENTS; 183d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 184d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael WrightEventHub::EventHub(void) : 185d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright mBuiltInKeyboardId(NO_BUILT_IN_KEYBOARD), mNextDeviceId(1), mControllerNumbers(), 186d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright mOpeningDevices(0), mClosingDevices(0), 187d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright mNeedToSendFinishedDeviceScan(false), 188d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright mNeedToReopenDevices(false), mNeedToScanDevices(true), 189d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright mPendingEventCount(0), mPendingEventIndex(0), mPendingINotify(false) { 190d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright acquire_wake_lock(PARTIAL_WAKE_LOCK, WAKE_LOCK_ID); 191d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 192d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright mEpollFd = epoll_create(EPOLL_SIZE_HINT); 193d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright LOG_ALWAYS_FATAL_IF(mEpollFd < 0, "Could not create epoll instance. errno=%d", errno); 194d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 195d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright mINotifyFd = inotify_init(); 196d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright int result = inotify_add_watch(mINotifyFd, DEVICE_PATH, IN_DELETE | IN_CREATE); 197d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright LOG_ALWAYS_FATAL_IF(result < 0, "Could not register INotify for %s. errno=%d", 198d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright DEVICE_PATH, errno); 199d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 200d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright struct epoll_event eventItem; 201d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright memset(&eventItem, 0, sizeof(eventItem)); 202d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright eventItem.events = EPOLLIN; 203d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright eventItem.data.u32 = EPOLL_ID_INOTIFY; 204d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright result = epoll_ctl(mEpollFd, EPOLL_CTL_ADD, mINotifyFd, &eventItem); 205d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright LOG_ALWAYS_FATAL_IF(result != 0, "Could not add INotify to epoll instance. errno=%d", errno); 206d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 207d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright int wakeFds[2]; 208d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright result = pipe(wakeFds); 209d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright LOG_ALWAYS_FATAL_IF(result != 0, "Could not create wake pipe. errno=%d", errno); 210d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 211d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright mWakeReadPipeFd = wakeFds[0]; 212d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright mWakeWritePipeFd = wakeFds[1]; 213d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 214d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright result = fcntl(mWakeReadPipeFd, F_SETFL, O_NONBLOCK); 215d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright LOG_ALWAYS_FATAL_IF(result != 0, "Could not make wake read pipe non-blocking. errno=%d", 216d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright errno); 217d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 218d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright result = fcntl(mWakeWritePipeFd, F_SETFL, O_NONBLOCK); 219d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright LOG_ALWAYS_FATAL_IF(result != 0, "Could not make wake write pipe non-blocking. errno=%d", 220d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright errno); 221d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 222d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright eventItem.data.u32 = EPOLL_ID_WAKE; 223d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright result = epoll_ctl(mEpollFd, EPOLL_CTL_ADD, mWakeReadPipeFd, &eventItem); 224d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright LOG_ALWAYS_FATAL_IF(result != 0, "Could not add wake read pipe to epoll instance. errno=%d", 225d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright errno); 226d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 227d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright int major, minor; 228d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright getLinuxRelease(&major, &minor); 229d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // EPOLLWAKEUP was introduced in kernel 3.5 230d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright mUsingEpollWakeup = major > 3 || (major == 3 && minor >= 5); 231d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright} 232d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 233d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael WrightEventHub::~EventHub(void) { 234d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright closeAllDevicesLocked(); 235d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 236d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright while (mClosingDevices) { 237d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright Device* device = mClosingDevices; 238d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright mClosingDevices = device->next; 239d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright delete device; 240d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 241d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 242d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ::close(mEpollFd); 243d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ::close(mINotifyFd); 244d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ::close(mWakeReadPipeFd); 245d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ::close(mWakeWritePipeFd); 246d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 247d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright release_wake_lock(WAKE_LOCK_ID); 248d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright} 249d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 250d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael WrightInputDeviceIdentifier EventHub::getDeviceIdentifier(int32_t deviceId) const { 251d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright AutoMutex _l(mLock); 252d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright Device* device = getDeviceLocked(deviceId); 253d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (device == NULL) return InputDeviceIdentifier(); 254d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright return device->identifier; 255d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright} 256d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 257d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wrightuint32_t EventHub::getDeviceClasses(int32_t deviceId) const { 258d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright AutoMutex _l(mLock); 259d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright Device* device = getDeviceLocked(deviceId); 260d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (device == NULL) return 0; 261d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright return device->classes; 262d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright} 263d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 264d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wrightint32_t EventHub::getDeviceControllerNumber(int32_t deviceId) const { 265d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright AutoMutex _l(mLock); 266d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright Device* device = getDeviceLocked(deviceId); 267d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (device == NULL) return 0; 268d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright return device->controllerNumber; 269d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright} 270d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 271d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wrightvoid EventHub::getConfiguration(int32_t deviceId, PropertyMap* outConfiguration) const { 272d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright AutoMutex _l(mLock); 273d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright Device* device = getDeviceLocked(deviceId); 274d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (device && device->configuration) { 275d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright *outConfiguration = *device->configuration; 276d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } else { 277d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright outConfiguration->clear(); 278d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 279d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright} 280d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 281d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wrightstatus_t EventHub::getAbsoluteAxisInfo(int32_t deviceId, int axis, 282d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright RawAbsoluteAxisInfo* outAxisInfo) const { 283d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright outAxisInfo->clear(); 284d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 285d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (axis >= 0 && axis <= ABS_MAX) { 286d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright AutoMutex _l(mLock); 287d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 288d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright Device* device = getDeviceLocked(deviceId); 289d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (device && !device->isVirtual() && test_bit(axis, device->absBitmask)) { 290d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright struct input_absinfo info; 291d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if(ioctl(device->fd, EVIOCGABS(axis), &info)) { 292d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ALOGW("Error reading absolute controller %d for device %s fd %d, errno=%d", 293d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright axis, device->identifier.name.string(), device->fd, errno); 294d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright return -errno; 295d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 296d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 297d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (info.minimum != info.maximum) { 298d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright outAxisInfo->valid = true; 299d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright outAxisInfo->minValue = info.minimum; 300d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright outAxisInfo->maxValue = info.maximum; 301d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright outAxisInfo->flat = info.flat; 302d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright outAxisInfo->fuzz = info.fuzz; 303d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright outAxisInfo->resolution = info.resolution; 304d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 305d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright return OK; 306d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 307d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 308d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright return -1; 309d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright} 310d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 311d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wrightbool EventHub::hasRelativeAxis(int32_t deviceId, int axis) const { 312d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (axis >= 0 && axis <= REL_MAX) { 313d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright AutoMutex _l(mLock); 314d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 315d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright Device* device = getDeviceLocked(deviceId); 316d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (device) { 317d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright return test_bit(axis, device->relBitmask); 318d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 319d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 320d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright return false; 321d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright} 322d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 323d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wrightbool EventHub::hasInputProperty(int32_t deviceId, int property) const { 324d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (property >= 0 && property <= INPUT_PROP_MAX) { 325d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright AutoMutex _l(mLock); 326d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 327d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright Device* device = getDeviceLocked(deviceId); 328d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (device) { 329d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright return test_bit(property, device->propBitmask); 330d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 331d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 332d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright return false; 333d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright} 334d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 335d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wrightint32_t EventHub::getScanCodeState(int32_t deviceId, int32_t scanCode) const { 336d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (scanCode >= 0 && scanCode <= KEY_MAX) { 337d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright AutoMutex _l(mLock); 338d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 339d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright Device* device = getDeviceLocked(deviceId); 340d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (device && !device->isVirtual() && test_bit(scanCode, device->keyBitmask)) { 341d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright uint8_t keyState[sizeof_bit_array(KEY_MAX + 1)]; 342d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright memset(keyState, 0, sizeof(keyState)); 343d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (ioctl(device->fd, EVIOCGKEY(sizeof(keyState)), keyState) >= 0) { 344d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright return test_bit(scanCode, keyState) ? AKEY_STATE_DOWN : AKEY_STATE_UP; 345d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 346d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 347d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 348d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright return AKEY_STATE_UNKNOWN; 349d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright} 350d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 351d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wrightint32_t EventHub::getKeyCodeState(int32_t deviceId, int32_t keyCode) const { 352d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright AutoMutex _l(mLock); 353d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 354d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright Device* device = getDeviceLocked(deviceId); 355d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (device && !device->isVirtual() && device->keyMap.haveKeyLayout()) { 356d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright Vector<int32_t> scanCodes; 357d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright device->keyMap.keyLayoutMap->findScanCodesForKey(keyCode, &scanCodes); 358d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (scanCodes.size() != 0) { 359d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright uint8_t keyState[sizeof_bit_array(KEY_MAX + 1)]; 360d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright memset(keyState, 0, sizeof(keyState)); 361d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (ioctl(device->fd, EVIOCGKEY(sizeof(keyState)), keyState) >= 0) { 362d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright for (size_t i = 0; i < scanCodes.size(); i++) { 363d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright int32_t sc = scanCodes.itemAt(i); 364d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (sc >= 0 && sc <= KEY_MAX && test_bit(sc, keyState)) { 365d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright return AKEY_STATE_DOWN; 366d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 367d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 368d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright return AKEY_STATE_UP; 369d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 370d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 371d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 372d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright return AKEY_STATE_UNKNOWN; 373d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright} 374d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 375d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wrightint32_t EventHub::getSwitchState(int32_t deviceId, int32_t sw) const { 376d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (sw >= 0 && sw <= SW_MAX) { 377d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright AutoMutex _l(mLock); 378d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 379d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright Device* device = getDeviceLocked(deviceId); 380d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (device && !device->isVirtual() && test_bit(sw, device->swBitmask)) { 381d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright uint8_t swState[sizeof_bit_array(SW_MAX + 1)]; 382d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright memset(swState, 0, sizeof(swState)); 383d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (ioctl(device->fd, EVIOCGSW(sizeof(swState)), swState) >= 0) { 384d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright return test_bit(sw, swState) ? AKEY_STATE_DOWN : AKEY_STATE_UP; 385d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 386d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 387d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 388d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright return AKEY_STATE_UNKNOWN; 389d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright} 390d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 391d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wrightstatus_t EventHub::getAbsoluteAxisValue(int32_t deviceId, int32_t axis, int32_t* outValue) const { 392d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright *outValue = 0; 393d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 394d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (axis >= 0 && axis <= ABS_MAX) { 395d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright AutoMutex _l(mLock); 396d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 397d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright Device* device = getDeviceLocked(deviceId); 398d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (device && !device->isVirtual() && test_bit(axis, device->absBitmask)) { 399d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright struct input_absinfo info; 400d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if(ioctl(device->fd, EVIOCGABS(axis), &info)) { 401d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ALOGW("Error reading absolute controller %d for device %s fd %d, errno=%d", 402d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright axis, device->identifier.name.string(), device->fd, errno); 403d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright return -errno; 404d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 405d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 406d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright *outValue = info.value; 407d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright return OK; 408d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 409d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 410d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright return -1; 411d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright} 412d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 413d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wrightbool EventHub::markSupportedKeyCodes(int32_t deviceId, size_t numCodes, 414d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright const int32_t* keyCodes, uint8_t* outFlags) const { 415d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright AutoMutex _l(mLock); 416d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 417d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright Device* device = getDeviceLocked(deviceId); 418d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (device && device->keyMap.haveKeyLayout()) { 419d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright Vector<int32_t> scanCodes; 420d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright for (size_t codeIndex = 0; codeIndex < numCodes; codeIndex++) { 421d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright scanCodes.clear(); 422d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 423d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright status_t err = device->keyMap.keyLayoutMap->findScanCodesForKey( 424d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright keyCodes[codeIndex], &scanCodes); 425d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (! err) { 426d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // check the possible scan codes identified by the layout map against the 427d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // map of codes actually emitted by the driver 428d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright for (size_t sc = 0; sc < scanCodes.size(); sc++) { 429d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (test_bit(scanCodes[sc], device->keyBitmask)) { 430d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright outFlags[codeIndex] = 1; 431d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright break; 432d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 433d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 434d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 435d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 436d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright return true; 437d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 438d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright return false; 439d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright} 440d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 4410faaa0bd7aa5dadea7c365fbb1f186da6eb097efDmitry Torokhovstatus_t EventHub::mapKey(int32_t deviceId, 4420faaa0bd7aa5dadea7c365fbb1f186da6eb097efDmitry Torokhov int32_t scanCode, int32_t usageCode, int32_t metaState, 4430faaa0bd7aa5dadea7c365fbb1f186da6eb097efDmitry Torokhov int32_t* outKeycode, int32_t* outMetaState, uint32_t* outFlags) const { 444d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright AutoMutex _l(mLock); 445d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright Device* device = getDeviceLocked(deviceId); 4460faaa0bd7aa5dadea7c365fbb1f186da6eb097efDmitry Torokhov status_t status = NAME_NOT_FOUND; 447d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 448d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (device) { 449d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // Check the key character map first. 450d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright sp<KeyCharacterMap> kcm = device->getKeyCharacterMap(); 451d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (kcm != NULL) { 452d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (!kcm->mapKey(scanCode, usageCode, outKeycode)) { 453d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright *outFlags = 0; 4540faaa0bd7aa5dadea7c365fbb1f186da6eb097efDmitry Torokhov status = NO_ERROR; 455d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 456d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 457d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 458d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // Check the key layout next. 4590faaa0bd7aa5dadea7c365fbb1f186da6eb097efDmitry Torokhov if (status != NO_ERROR && device->keyMap.haveKeyLayout()) { 460d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (!device->keyMap.keyLayoutMap->mapKey( 461d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright scanCode, usageCode, outKeycode, outFlags)) { 4620faaa0bd7aa5dadea7c365fbb1f186da6eb097efDmitry Torokhov status = NO_ERROR; 4630faaa0bd7aa5dadea7c365fbb1f186da6eb097efDmitry Torokhov } 4640faaa0bd7aa5dadea7c365fbb1f186da6eb097efDmitry Torokhov } 4650faaa0bd7aa5dadea7c365fbb1f186da6eb097efDmitry Torokhov 4660faaa0bd7aa5dadea7c365fbb1f186da6eb097efDmitry Torokhov if (status == NO_ERROR) { 4670faaa0bd7aa5dadea7c365fbb1f186da6eb097efDmitry Torokhov if (kcm != NULL) { 4680faaa0bd7aa5dadea7c365fbb1f186da6eb097efDmitry Torokhov kcm->tryRemapKey(*outKeycode, metaState, outKeycode, outMetaState); 4690faaa0bd7aa5dadea7c365fbb1f186da6eb097efDmitry Torokhov } else { 4700faaa0bd7aa5dadea7c365fbb1f186da6eb097efDmitry Torokhov *outMetaState = metaState; 471d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 472d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 473d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 474d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 4750faaa0bd7aa5dadea7c365fbb1f186da6eb097efDmitry Torokhov if (status != NO_ERROR) { 4760faaa0bd7aa5dadea7c365fbb1f186da6eb097efDmitry Torokhov *outKeycode = 0; 4770faaa0bd7aa5dadea7c365fbb1f186da6eb097efDmitry Torokhov *outFlags = 0; 4780faaa0bd7aa5dadea7c365fbb1f186da6eb097efDmitry Torokhov *outMetaState = metaState; 4790faaa0bd7aa5dadea7c365fbb1f186da6eb097efDmitry Torokhov } 4800faaa0bd7aa5dadea7c365fbb1f186da6eb097efDmitry Torokhov 4810faaa0bd7aa5dadea7c365fbb1f186da6eb097efDmitry Torokhov return status; 482d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright} 483d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 484d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wrightstatus_t EventHub::mapAxis(int32_t deviceId, int32_t scanCode, AxisInfo* outAxisInfo) const { 485d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright AutoMutex _l(mLock); 486d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright Device* device = getDeviceLocked(deviceId); 487d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 488d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (device && device->keyMap.haveKeyLayout()) { 489d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright status_t err = device->keyMap.keyLayoutMap->mapAxis(scanCode, outAxisInfo); 490d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (err == NO_ERROR) { 491d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright return NO_ERROR; 492d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 493d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 494d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 495d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright return NAME_NOT_FOUND; 496d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright} 497d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 498d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wrightvoid EventHub::setExcludedDevices(const Vector<String8>& devices) { 499d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright AutoMutex _l(mLock); 500d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 501d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright mExcludedDevices = devices; 502d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright} 503d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 504d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wrightbool EventHub::hasScanCode(int32_t deviceId, int32_t scanCode) const { 505d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright AutoMutex _l(mLock); 506d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright Device* device = getDeviceLocked(deviceId); 507d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (device && scanCode >= 0 && scanCode <= KEY_MAX) { 508d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (test_bit(scanCode, device->keyBitmask)) { 509d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright return true; 510d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 511d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 512d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright return false; 513d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright} 514d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 515d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wrightbool EventHub::hasLed(int32_t deviceId, int32_t led) const { 516d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright AutoMutex _l(mLock); 517d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright Device* device = getDeviceLocked(deviceId); 518d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright int32_t sc; 519d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (device && mapLed(device, led, &sc) == NO_ERROR) { 520d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (test_bit(sc, device->ledBitmask)) { 521d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright return true; 522d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 523d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 524d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright return false; 525d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright} 526d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 527d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wrightvoid EventHub::setLedState(int32_t deviceId, int32_t led, bool on) { 528d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright AutoMutex _l(mLock); 529d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright Device* device = getDeviceLocked(deviceId); 530d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright setLedStateLocked(device, led, on); 531d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright} 532d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 533d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wrightvoid EventHub::setLedStateLocked(Device* device, int32_t led, bool on) { 534d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright int32_t sc; 535d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (device && !device->isVirtual() && mapLed(device, led, &sc) != NAME_NOT_FOUND) { 536d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright struct input_event ev; 537d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ev.time.tv_sec = 0; 538d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ev.time.tv_usec = 0; 539d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ev.type = EV_LED; 540d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ev.code = sc; 541d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ev.value = on ? 1 : 0; 542d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 543d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ssize_t nWrite; 544d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright do { 545d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright nWrite = write(device->fd, &ev, sizeof(struct input_event)); 546d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } while (nWrite == -1 && errno == EINTR); 547d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 548d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright} 549d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 550d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wrightvoid EventHub::getVirtualKeyDefinitions(int32_t deviceId, 551d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright Vector<VirtualKeyDefinition>& outVirtualKeys) const { 552d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright outVirtualKeys.clear(); 553d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 554d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright AutoMutex _l(mLock); 555d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright Device* device = getDeviceLocked(deviceId); 556d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (device && device->virtualKeyMap) { 557d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright outVirtualKeys.appendVector(device->virtualKeyMap->getVirtualKeys()); 558d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 559d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright} 560d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 561d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wrightsp<KeyCharacterMap> EventHub::getKeyCharacterMap(int32_t deviceId) const { 562d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright AutoMutex _l(mLock); 563d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright Device* device = getDeviceLocked(deviceId); 564d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (device) { 565d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright return device->getKeyCharacterMap(); 566d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 567d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright return NULL; 568d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright} 569d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 570d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wrightbool EventHub::setKeyboardLayoutOverlay(int32_t deviceId, 571d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright const sp<KeyCharacterMap>& map) { 572d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright AutoMutex _l(mLock); 573d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright Device* device = getDeviceLocked(deviceId); 574d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (device) { 575d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (map != device->overlayKeyMap) { 576d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright device->overlayKeyMap = map; 577d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright device->combinedKeyMap = KeyCharacterMap::combine( 578d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright device->keyMap.keyCharacterMap, map); 579d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright return true; 580d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 581d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 582d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright return false; 583d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright} 584d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 585d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wrightstatic String8 generateDescriptor(InputDeviceIdentifier& identifier) { 586d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright String8 rawDescriptor; 587d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright rawDescriptor.appendFormat(":%04x:%04x:", identifier.vendor, 588d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright identifier.product); 589d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // TODO add handling for USB devices to not uniqueify kbs that show up twice 590d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (!identifier.uniqueId.isEmpty()) { 591d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright rawDescriptor.append("uniqueId:"); 592d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright rawDescriptor.append(identifier.uniqueId); 593d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } else if (identifier.nonce != 0) { 594d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright rawDescriptor.appendFormat("nonce:%04x", identifier.nonce); 595d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 596d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 597d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (identifier.vendor == 0 && identifier.product == 0) { 598d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // If we don't know the vendor and product id, then the device is probably 599d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // built-in so we need to rely on other information to uniquely identify 600d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // the input device. Usually we try to avoid relying on the device name or 601d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // location but for built-in input device, they are unlikely to ever change. 602d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (!identifier.name.isEmpty()) { 603d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright rawDescriptor.append("name:"); 604d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright rawDescriptor.append(identifier.name); 605d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } else if (!identifier.location.isEmpty()) { 606d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright rawDescriptor.append("location:"); 607d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright rawDescriptor.append(identifier.location); 608d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 609d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 610d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright identifier.descriptor = sha1(rawDescriptor); 611d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright return rawDescriptor; 612d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright} 613d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 614d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wrightvoid EventHub::assignDescriptorLocked(InputDeviceIdentifier& identifier) { 615d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // Compute a device descriptor that uniquely identifies the device. 616d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // The descriptor is assumed to be a stable identifier. Its value should not 617d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // change between reboots, reconnections, firmware updates or new releases 618d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // of Android. In practice we sometimes get devices that cannot be uniquely 619d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // identified. In this case we enforce uniqueness between connected devices. 620d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // Ideally, we also want the descriptor to be short and relatively opaque. 621d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 622d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright identifier.nonce = 0; 623d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright String8 rawDescriptor = generateDescriptor(identifier); 624d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (identifier.uniqueId.isEmpty()) { 625d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // If it didn't have a unique id check for conflicts and enforce 626d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // uniqueness if necessary. 627d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright while(getDeviceByDescriptorLocked(identifier.descriptor) != NULL) { 628d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright identifier.nonce++; 629d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright rawDescriptor = generateDescriptor(identifier); 630d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 631d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 632d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ALOGV("Created descriptor: raw=%s, cooked=%s", rawDescriptor.string(), 633d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright identifier.descriptor.string()); 634d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright} 635d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 636d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wrightvoid EventHub::vibrate(int32_t deviceId, nsecs_t duration) { 637d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright AutoMutex _l(mLock); 638d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright Device* device = getDeviceLocked(deviceId); 639d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (device && !device->isVirtual()) { 640d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ff_effect effect; 641d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright memset(&effect, 0, sizeof(effect)); 642d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright effect.type = FF_RUMBLE; 643d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright effect.id = device->ffEffectId; 644d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright effect.u.rumble.strong_magnitude = 0xc000; 645d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright effect.u.rumble.weak_magnitude = 0xc000; 646d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright effect.replay.length = (duration + 999999LL) / 1000000LL; 647d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright effect.replay.delay = 0; 648d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (ioctl(device->fd, EVIOCSFF, &effect)) { 649d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ALOGW("Could not upload force feedback effect to device %s due to error %d.", 650d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright device->identifier.name.string(), errno); 651d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright return; 652d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 653d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright device->ffEffectId = effect.id; 654d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 655d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright struct input_event ev; 656d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ev.time.tv_sec = 0; 657d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ev.time.tv_usec = 0; 658d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ev.type = EV_FF; 659d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ev.code = device->ffEffectId; 660d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ev.value = 1; 661d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (write(device->fd, &ev, sizeof(ev)) != sizeof(ev)) { 662d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ALOGW("Could not start force feedback effect on device %s due to error %d.", 663d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright device->identifier.name.string(), errno); 664d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright return; 665d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 666d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright device->ffEffectPlaying = true; 667d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 668d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright} 669d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 670d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wrightvoid EventHub::cancelVibrate(int32_t deviceId) { 671d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright AutoMutex _l(mLock); 672d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright Device* device = getDeviceLocked(deviceId); 673d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (device && !device->isVirtual()) { 674d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (device->ffEffectPlaying) { 675d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright device->ffEffectPlaying = false; 676d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 677d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright struct input_event ev; 678d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ev.time.tv_sec = 0; 679d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ev.time.tv_usec = 0; 680d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ev.type = EV_FF; 681d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ev.code = device->ffEffectId; 682d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ev.value = 0; 683d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (write(device->fd, &ev, sizeof(ev)) != sizeof(ev)) { 684d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ALOGW("Could not stop force feedback effect on device %s due to error %d.", 685d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright device->identifier.name.string(), errno); 686d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright return; 687d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 688d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 689d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 690d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright} 691d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 692d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael WrightEventHub::Device* EventHub::getDeviceByDescriptorLocked(String8& descriptor) const { 693d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright size_t size = mDevices.size(); 694d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright for (size_t i = 0; i < size; i++) { 695d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright Device* device = mDevices.valueAt(i); 696d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (descriptor.compare(device->identifier.descriptor) == 0) { 697d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright return device; 698d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 699d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 700d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright return NULL; 701d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright} 702d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 703d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael WrightEventHub::Device* EventHub::getDeviceLocked(int32_t deviceId) const { 704d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (deviceId == BUILT_IN_KEYBOARD_ID) { 705d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright deviceId = mBuiltInKeyboardId; 706d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 707d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ssize_t index = mDevices.indexOfKey(deviceId); 708d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright return index >= 0 ? mDevices.valueAt(index) : NULL; 709d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright} 710d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 711d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael WrightEventHub::Device* EventHub::getDeviceByPathLocked(const char* devicePath) const { 712d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright for (size_t i = 0; i < mDevices.size(); i++) { 713d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright Device* device = mDevices.valueAt(i); 714d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (device->path == devicePath) { 715d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright return device; 716d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 717d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 718d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright return NULL; 719d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright} 720d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 721d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wrightsize_t EventHub::getEvents(int timeoutMillis, RawEvent* buffer, size_t bufferSize) { 722d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ALOG_ASSERT(bufferSize >= 1); 723d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 724d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright AutoMutex _l(mLock); 725d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 726d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright struct input_event readBuffer[bufferSize]; 727d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 728d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright RawEvent* event = buffer; 729d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright size_t capacity = bufferSize; 730d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright bool awoken = false; 731d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright for (;;) { 732d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright nsecs_t now = systemTime(SYSTEM_TIME_MONOTONIC); 733d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 734d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // Reopen input devices if needed. 735d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (mNeedToReopenDevices) { 736d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright mNeedToReopenDevices = false; 737d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 738d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ALOGI("Reopening all input devices due to a configuration change."); 739d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 740d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright closeAllDevicesLocked(); 741d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright mNeedToScanDevices = true; 742d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright break; // return to the caller before we actually rescan 743d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 744d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 745d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // Report any devices that had last been added/removed. 746d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright while (mClosingDevices) { 747d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright Device* device = mClosingDevices; 748d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ALOGV("Reporting device closed: id=%d, name=%s\n", 749d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright device->id, device->path.string()); 750d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright mClosingDevices = device->next; 751d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright event->when = now; 752d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright event->deviceId = device->id == mBuiltInKeyboardId ? BUILT_IN_KEYBOARD_ID : device->id; 753d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright event->type = DEVICE_REMOVED; 754d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright event += 1; 755d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright delete device; 756d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright mNeedToSendFinishedDeviceScan = true; 757d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (--capacity == 0) { 758d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright break; 759d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 760d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 761d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 762d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (mNeedToScanDevices) { 763d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright mNeedToScanDevices = false; 764d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright scanDevicesLocked(); 765d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright mNeedToSendFinishedDeviceScan = true; 766d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 767d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 768d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright while (mOpeningDevices != NULL) { 769d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright Device* device = mOpeningDevices; 770d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ALOGV("Reporting device opened: id=%d, name=%s\n", 771d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright device->id, device->path.string()); 772d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright mOpeningDevices = device->next; 773d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright event->when = now; 774d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright event->deviceId = device->id == mBuiltInKeyboardId ? 0 : device->id; 775d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright event->type = DEVICE_ADDED; 776d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright event += 1; 777d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright mNeedToSendFinishedDeviceScan = true; 778d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (--capacity == 0) { 779d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright break; 780d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 781d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 782d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 783d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (mNeedToSendFinishedDeviceScan) { 784d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright mNeedToSendFinishedDeviceScan = false; 785d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright event->when = now; 786d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright event->type = FINISHED_DEVICE_SCAN; 787d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright event += 1; 788d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (--capacity == 0) { 789d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright break; 790d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 791d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 792d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 793d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // Grab the next input event. 794d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright bool deviceChanged = false; 795d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright while (mPendingEventIndex < mPendingEventCount) { 796d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright const struct epoll_event& eventItem = mPendingEventItems[mPendingEventIndex++]; 797d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (eventItem.data.u32 == EPOLL_ID_INOTIFY) { 798d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (eventItem.events & EPOLLIN) { 799d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright mPendingINotify = true; 800d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } else { 801d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ALOGW("Received unexpected epoll event 0x%08x for INotify.", eventItem.events); 802d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 803d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright continue; 804d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 805d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 806d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (eventItem.data.u32 == EPOLL_ID_WAKE) { 807d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (eventItem.events & EPOLLIN) { 808d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ALOGV("awoken after wake()"); 809d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright awoken = true; 810d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright char buffer[16]; 811d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ssize_t nRead; 812d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright do { 813d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright nRead = read(mWakeReadPipeFd, buffer, sizeof(buffer)); 814d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } while ((nRead == -1 && errno == EINTR) || nRead == sizeof(buffer)); 815d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } else { 816d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ALOGW("Received unexpected epoll event 0x%08x for wake read pipe.", 817d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright eventItem.events); 818d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 819d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright continue; 820d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 821d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 822d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ssize_t deviceIndex = mDevices.indexOfKey(eventItem.data.u32); 823d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (deviceIndex < 0) { 824d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ALOGW("Received unexpected epoll event 0x%08x for unknown device id %d.", 825d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright eventItem.events, eventItem.data.u32); 826d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright continue; 827d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 828d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 829d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright Device* device = mDevices.valueAt(deviceIndex); 830d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (eventItem.events & EPOLLIN) { 831d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright int32_t readSize = read(device->fd, readBuffer, 832d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright sizeof(struct input_event) * capacity); 833d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (readSize == 0 || (readSize < 0 && errno == ENODEV)) { 834d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // Device was removed before INotify noticed. 8355aa26b274595f12e98abaad364cf9e3061b2dfe7Mark Salyzyn ALOGW("could not get event, removed? (fd: %d size: %" PRId32 8365aa26b274595f12e98abaad364cf9e3061b2dfe7Mark Salyzyn " bufferSize: %zu capacity: %zu errno: %d)\n", 837d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright device->fd, readSize, bufferSize, capacity, errno); 838d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright deviceChanged = true; 839d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright closeDeviceLocked(device); 840d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } else if (readSize < 0) { 841d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (errno != EAGAIN && errno != EINTR) { 842d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ALOGW("could not get event (errno=%d)", errno); 843d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 844d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } else if ((readSize % sizeof(struct input_event)) != 0) { 845d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ALOGE("could not get event (wrong size: %d)", readSize); 846d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } else { 847d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright int32_t deviceId = device->id == mBuiltInKeyboardId ? 0 : device->id; 848d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 849d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright size_t count = size_t(readSize) / sizeof(struct input_event); 850d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright for (size_t i = 0; i < count; i++) { 851d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright struct input_event& iev = readBuffer[i]; 852d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ALOGV("%s got: time=%d.%06d, type=%d, code=%d, value=%d", 853d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright device->path.string(), 854d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright (int) iev.time.tv_sec, (int) iev.time.tv_usec, 855d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright iev.type, iev.code, iev.value); 856d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 857d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // Some input devices may have a better concept of the time 858d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // when an input event was actually generated than the kernel 859d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // which simply timestamps all events on entry to evdev. 860d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // This is a custom Android extension of the input protocol 861d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // mainly intended for use with uinput based device drivers. 862d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (iev.type == EV_MSC) { 863d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (iev.code == MSC_ANDROID_TIME_SEC) { 864d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright device->timestampOverrideSec = iev.value; 865d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright continue; 866d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } else if (iev.code == MSC_ANDROID_TIME_USEC) { 867d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright device->timestampOverrideUsec = iev.value; 868d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright continue; 869d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 870d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 871d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (device->timestampOverrideSec || device->timestampOverrideUsec) { 872d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright iev.time.tv_sec = device->timestampOverrideSec; 873d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright iev.time.tv_usec = device->timestampOverrideUsec; 874d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (iev.type == EV_SYN && iev.code == SYN_REPORT) { 875d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright device->timestampOverrideSec = 0; 876d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright device->timestampOverrideUsec = 0; 877d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 878d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ALOGV("applied override time %d.%06d", 879d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright int(iev.time.tv_sec), int(iev.time.tv_usec)); 880d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 881d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 882d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // Use the time specified in the event instead of the current time 883d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // so that downstream code can get more accurate estimates of 884d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // event dispatch latency from the time the event is enqueued onto 885d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // the evdev client buffer. 886d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // 887d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // The event's timestamp fortuitously uses the same monotonic clock 888d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // time base as the rest of Android. The kernel event device driver 889d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // (drivers/input/evdev.c) obtains timestamps using ktime_get_ts(). 890d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // The systemTime(SYSTEM_TIME_MONOTONIC) function we use everywhere 891d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // calls clock_gettime(CLOCK_MONOTONIC) which is implemented as a 892d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // system call that also queries ktime_get_ts(). 893d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright event->when = nsecs_t(iev.time.tv_sec) * 1000000000LL 894d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright + nsecs_t(iev.time.tv_usec) * 1000LL; 8955aa26b274595f12e98abaad364cf9e3061b2dfe7Mark Salyzyn ALOGV("event time %" PRId64 ", now %" PRId64, event->when, now); 896d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 897d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // Bug 7291243: Add a guard in case the kernel generates timestamps 898d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // that appear to be far into the future because they were generated 899d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // using the wrong clock source. 900d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // 901d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // This can happen because when the input device is initially opened 902d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // it has a default clock source of CLOCK_REALTIME. Any input events 903d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // enqueued right after the device is opened will have timestamps 904d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // generated using CLOCK_REALTIME. We later set the clock source 905d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // to CLOCK_MONOTONIC but it is already too late. 906d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // 907d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // Invalid input event timestamps can result in ANRs, crashes and 908d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // and other issues that are hard to track down. We must not let them 909d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // propagate through the system. 910d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // 911d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // Log a warning so that we notice the problem and recover gracefully. 912d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (event->when >= now + 10 * 1000000000LL) { 913d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // Double-check. Time may have moved on. 914d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright nsecs_t time = systemTime(SYSTEM_TIME_MONOTONIC); 915d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (event->when > time) { 916d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ALOGW("An input event from %s has a timestamp that appears to " 917d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright "have been generated using the wrong clock source " 918d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright "(expected CLOCK_MONOTONIC): " 9195aa26b274595f12e98abaad364cf9e3061b2dfe7Mark Salyzyn "event time %" PRId64 ", current time %" PRId64 9205aa26b274595f12e98abaad364cf9e3061b2dfe7Mark Salyzyn ", call time %" PRId64 ". " 921d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright "Using current time instead.", 922d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright device->path.string(), event->when, time, now); 923d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright event->when = time; 924d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } else { 925d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ALOGV("Event time is ok but failed the fast path and required " 926d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright "an extra call to systemTime: " 9275aa26b274595f12e98abaad364cf9e3061b2dfe7Mark Salyzyn "event time %" PRId64 ", current time %" PRId64 9285aa26b274595f12e98abaad364cf9e3061b2dfe7Mark Salyzyn ", call time %" PRId64 ".", 929d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright event->when, time, now); 930d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 931d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 932d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright event->deviceId = deviceId; 933d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright event->type = iev.type; 934d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright event->code = iev.code; 935d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright event->value = iev.value; 936d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright event += 1; 937d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright capacity -= 1; 938d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 939d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (capacity == 0) { 940d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // The result buffer is full. Reset the pending event index 941d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // so we will try to read the device again on the next iteration. 942d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright mPendingEventIndex -= 1; 943d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright break; 944d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 945d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 946d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } else if (eventItem.events & EPOLLHUP) { 947d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ALOGI("Removing device %s due to epoll hang-up event.", 948d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright device->identifier.name.string()); 949d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright deviceChanged = true; 950d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright closeDeviceLocked(device); 951d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } else { 952d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ALOGW("Received unexpected epoll event 0x%08x for device %s.", 953d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright eventItem.events, device->identifier.name.string()); 954d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 955d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 956d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 957d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // readNotify() will modify the list of devices so this must be done after 958d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // processing all other events to ensure that we read all remaining events 959d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // before closing the devices. 960d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (mPendingINotify && mPendingEventIndex >= mPendingEventCount) { 961d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright mPendingINotify = false; 962d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright readNotifyLocked(); 963d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright deviceChanged = true; 964d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 965d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 966d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // Report added or removed devices immediately. 967d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (deviceChanged) { 968d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright continue; 969d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 970d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 971d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // Return now if we have collected any events or if we were explicitly awoken. 972d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (event != buffer || awoken) { 973d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright break; 974d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 975d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 976d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // Poll for events. Mind the wake lock dance! 977d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // We hold a wake lock at all times except during epoll_wait(). This works due to some 978d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // subtle choreography. When a device driver has pending (unread) events, it acquires 979d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // a kernel wake lock. However, once the last pending event has been read, the device 980d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // driver will release the kernel wake lock. To prevent the system from going to sleep 981d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // when this happens, the EventHub holds onto its own user wake lock while the client 982d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // is processing events. Thus the system can only sleep if there are no events 983d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // pending or currently being processed. 984d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // 985d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // The timeout is advisory only. If the device is asleep, it will not wake just to 986d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // service the timeout. 987d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright mPendingEventIndex = 0; 988d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 989d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright mLock.unlock(); // release lock before poll, must be before release_wake_lock 990d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright release_wake_lock(WAKE_LOCK_ID); 991d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 992d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright int pollResult = epoll_wait(mEpollFd, mPendingEventItems, EPOLL_MAX_EVENTS, timeoutMillis); 993d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 994d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright acquire_wake_lock(PARTIAL_WAKE_LOCK, WAKE_LOCK_ID); 995d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright mLock.lock(); // reacquire lock after poll, must be after acquire_wake_lock 996d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 997d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (pollResult == 0) { 998d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // Timed out. 999d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright mPendingEventCount = 0; 1000d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright break; 1001d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 1002d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 1003d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (pollResult < 0) { 1004d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // An error occurred. 1005d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright mPendingEventCount = 0; 1006d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 1007d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // Sleep after errors to avoid locking up the system. 1008d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // Hopefully the error is transient. 1009d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (errno != EINTR) { 1010d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ALOGW("poll failed (errno=%d)\n", errno); 1011d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright usleep(100000); 1012d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 1013d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } else { 1014d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // Some events occurred. 1015d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright mPendingEventCount = size_t(pollResult); 1016d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 1017d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 1018d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 1019d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // All done, return the number of events we read. 1020d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright return event - buffer; 1021d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright} 1022d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 1023d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wrightvoid EventHub::wake() { 1024d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ALOGV("wake() called"); 1025d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 1026d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ssize_t nWrite; 1027d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright do { 1028d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright nWrite = write(mWakeWritePipeFd, "W", 1); 1029d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } while (nWrite == -1 && errno == EINTR); 1030d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 1031d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (nWrite != 1 && errno != EAGAIN) { 1032d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ALOGW("Could not write wake signal, errno=%d", errno); 1033d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 1034d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright} 1035d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 1036d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wrightvoid EventHub::scanDevicesLocked() { 1037d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright status_t res = scanDirLocked(DEVICE_PATH); 1038d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if(res < 0) { 1039d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ALOGE("scan dir failed for %s\n", DEVICE_PATH); 1040d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 1041d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (mDevices.indexOfKey(VIRTUAL_KEYBOARD_ID) < 0) { 1042d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright createVirtualKeyboardLocked(); 1043d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 1044d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright} 1045d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 1046d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright// ---------------------------------------------------------------------------- 1047d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 1048d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wrightstatic bool containsNonZeroByte(const uint8_t* array, uint32_t startIndex, uint32_t endIndex) { 1049d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright const uint8_t* end = array + endIndex; 1050d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright array += startIndex; 1051d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright while (array != end) { 1052d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (*(array++) != 0) { 1053d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright return true; 1054d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 1055d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 1056d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright return false; 1057d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright} 1058d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 1059d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wrightstatic const int32_t GAMEPAD_KEYCODES[] = { 1060d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright AKEYCODE_BUTTON_A, AKEYCODE_BUTTON_B, AKEYCODE_BUTTON_C, 1061d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright AKEYCODE_BUTTON_X, AKEYCODE_BUTTON_Y, AKEYCODE_BUTTON_Z, 1062d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright AKEYCODE_BUTTON_L1, AKEYCODE_BUTTON_R1, 1063d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright AKEYCODE_BUTTON_L2, AKEYCODE_BUTTON_R2, 1064d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright AKEYCODE_BUTTON_THUMBL, AKEYCODE_BUTTON_THUMBR, 1065d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright AKEYCODE_BUTTON_START, AKEYCODE_BUTTON_SELECT, AKEYCODE_BUTTON_MODE, 1066d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright}; 1067d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 1068d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wrightstatus_t EventHub::openDeviceLocked(const char *devicePath) { 1069d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright char buffer[80]; 1070d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 1071d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ALOGV("Opening device: %s", devicePath); 1072d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 1073d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright int fd = open(devicePath, O_RDWR | O_CLOEXEC); 1074d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if(fd < 0) { 1075d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ALOGE("could not open %s, %s\n", devicePath, strerror(errno)); 1076d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright return -1; 1077d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 1078d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 1079d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright InputDeviceIdentifier identifier; 1080d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 1081d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // Get device name. 1082d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if(ioctl(fd, EVIOCGNAME(sizeof(buffer) - 1), &buffer) < 1) { 1083d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright //fprintf(stderr, "could not get device name for %s, %s\n", devicePath, strerror(errno)); 1084d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } else { 1085d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright buffer[sizeof(buffer) - 1] = '\0'; 1086d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright identifier.name.setTo(buffer); 1087d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 1088d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 1089d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // Check to see if the device is on our excluded list 1090d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright for (size_t i = 0; i < mExcludedDevices.size(); i++) { 1091d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright const String8& item = mExcludedDevices.itemAt(i); 1092d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (identifier.name == item) { 1093d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ALOGI("ignoring event id %s driver %s\n", devicePath, item.string()); 1094d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright close(fd); 1095d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright return -1; 1096d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 1097d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 1098d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 1099d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // Get device driver version. 1100d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright int driverVersion; 1101d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if(ioctl(fd, EVIOCGVERSION, &driverVersion)) { 1102d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ALOGE("could not get driver version for %s, %s\n", devicePath, strerror(errno)); 1103d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright close(fd); 1104d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright return -1; 1105d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 1106d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 1107d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // Get device identifier. 1108d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright struct input_id inputId; 1109d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if(ioctl(fd, EVIOCGID, &inputId)) { 1110d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ALOGE("could not get device input id for %s, %s\n", devicePath, strerror(errno)); 1111d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright close(fd); 1112d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright return -1; 1113d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 1114d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright identifier.bus = inputId.bustype; 1115d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright identifier.product = inputId.product; 1116d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright identifier.vendor = inputId.vendor; 1117d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright identifier.version = inputId.version; 1118d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 1119d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // Get device physical location. 1120d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if(ioctl(fd, EVIOCGPHYS(sizeof(buffer) - 1), &buffer) < 1) { 1121d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright //fprintf(stderr, "could not get location for %s, %s\n", devicePath, strerror(errno)); 1122d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } else { 1123d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright buffer[sizeof(buffer) - 1] = '\0'; 1124d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright identifier.location.setTo(buffer); 1125d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 1126d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 1127d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // Get device unique id. 1128d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if(ioctl(fd, EVIOCGUNIQ(sizeof(buffer) - 1), &buffer) < 1) { 1129d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright //fprintf(stderr, "could not get idstring for %s, %s\n", devicePath, strerror(errno)); 1130d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } else { 1131d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright buffer[sizeof(buffer) - 1] = '\0'; 1132d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright identifier.uniqueId.setTo(buffer); 1133d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 1134d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 1135d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // Fill in the descriptor. 1136d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright assignDescriptorLocked(identifier); 1137d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 1138d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // Make file descriptor non-blocking for use with poll(). 1139d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (fcntl(fd, F_SETFL, O_NONBLOCK)) { 1140d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ALOGE("Error %d making device file descriptor non-blocking.", errno); 1141d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright close(fd); 1142d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright return -1; 1143d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 1144d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 1145d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // Allocate device. (The device object takes ownership of the fd at this point.) 1146d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright int32_t deviceId = mNextDeviceId++; 1147d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright Device* device = new Device(fd, deviceId, String8(devicePath), identifier); 1148d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 1149d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ALOGV("add device %d: %s\n", deviceId, devicePath); 1150d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ALOGV(" bus: %04x\n" 1151d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright " vendor %04x\n" 1152d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright " product %04x\n" 1153d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright " version %04x\n", 1154d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright identifier.bus, identifier.vendor, identifier.product, identifier.version); 1155d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ALOGV(" name: \"%s\"\n", identifier.name.string()); 1156d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ALOGV(" location: \"%s\"\n", identifier.location.string()); 1157d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ALOGV(" unique id: \"%s\"\n", identifier.uniqueId.string()); 1158d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ALOGV(" descriptor: \"%s\"\n", identifier.descriptor.string()); 1159d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ALOGV(" driver: v%d.%d.%d\n", 1160d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright driverVersion >> 16, (driverVersion >> 8) & 0xff, driverVersion & 0xff); 1161d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 1162d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // Load the configuration file for the device. 1163d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright loadConfigurationLocked(device); 1164d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 1165d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // Figure out the kinds of events the device reports. 1166d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ioctl(fd, EVIOCGBIT(EV_KEY, sizeof(device->keyBitmask)), device->keyBitmask); 1167d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ioctl(fd, EVIOCGBIT(EV_ABS, sizeof(device->absBitmask)), device->absBitmask); 1168d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ioctl(fd, EVIOCGBIT(EV_REL, sizeof(device->relBitmask)), device->relBitmask); 1169d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ioctl(fd, EVIOCGBIT(EV_SW, sizeof(device->swBitmask)), device->swBitmask); 1170d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ioctl(fd, EVIOCGBIT(EV_LED, sizeof(device->ledBitmask)), device->ledBitmask); 1171d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ioctl(fd, EVIOCGBIT(EV_FF, sizeof(device->ffBitmask)), device->ffBitmask); 1172d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ioctl(fd, EVIOCGPROP(sizeof(device->propBitmask)), device->propBitmask); 1173d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 1174d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // See if this is a keyboard. Ignore everything in the button range except for 1175d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // joystick and gamepad buttons which are handled like keyboards for the most part. 1176d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright bool haveKeyboardKeys = containsNonZeroByte(device->keyBitmask, 0, sizeof_bit_array(BTN_MISC)) 1177d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright || containsNonZeroByte(device->keyBitmask, sizeof_bit_array(KEY_OK), 1178d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright sizeof_bit_array(KEY_MAX + 1)); 1179d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright bool haveGamepadButtons = containsNonZeroByte(device->keyBitmask, sizeof_bit_array(BTN_MISC), 1180d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright sizeof_bit_array(BTN_MOUSE)) 1181d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright || containsNonZeroByte(device->keyBitmask, sizeof_bit_array(BTN_JOYSTICK), 1182d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright sizeof_bit_array(BTN_DIGI)); 1183d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (haveKeyboardKeys || haveGamepadButtons) { 1184d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright device->classes |= INPUT_DEVICE_CLASS_KEYBOARD; 1185d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 1186d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 1187d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // See if this is a cursor device such as a trackball or mouse. 1188d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (test_bit(BTN_MOUSE, device->keyBitmask) 1189d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright && test_bit(REL_X, device->relBitmask) 1190d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright && test_bit(REL_Y, device->relBitmask)) { 1191d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright device->classes |= INPUT_DEVICE_CLASS_CURSOR; 1192d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 1193d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 11941941ff5815e9f8a09f6ae643addbb4119482cf16Prashant Malani // See if this is a rotary encoder type device. 11951941ff5815e9f8a09f6ae643addbb4119482cf16Prashant Malani String8 deviceType = String8(); 11961941ff5815e9f8a09f6ae643addbb4119482cf16Prashant Malani if (device->configuration && 11971941ff5815e9f8a09f6ae643addbb4119482cf16Prashant Malani device->configuration->tryGetProperty(String8("device.type"), deviceType)) { 11981941ff5815e9f8a09f6ae643addbb4119482cf16Prashant Malani if (!deviceType.compare(String8("rotaryEncoder"))) { 11991941ff5815e9f8a09f6ae643addbb4119482cf16Prashant Malani device->classes |= INPUT_DEVICE_CLASS_ROTARY_ENCODER; 12001941ff5815e9f8a09f6ae643addbb4119482cf16Prashant Malani } 12011941ff5815e9f8a09f6ae643addbb4119482cf16Prashant Malani } 12021941ff5815e9f8a09f6ae643addbb4119482cf16Prashant Malani 1203d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // See if this is a touch pad. 1204d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // Is this a new modern multi-touch driver? 1205d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (test_bit(ABS_MT_POSITION_X, device->absBitmask) 1206d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright && test_bit(ABS_MT_POSITION_Y, device->absBitmask)) { 1207d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // Some joysticks such as the PS3 controller report axes that conflict 1208d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // with the ABS_MT range. Try to confirm that the device really is 1209d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // a touch screen. 1210d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (test_bit(BTN_TOUCH, device->keyBitmask) || !haveGamepadButtons) { 1211d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright device->classes |= INPUT_DEVICE_CLASS_TOUCH | INPUT_DEVICE_CLASS_TOUCH_MT; 1212d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 1213d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // Is this an old style single-touch driver? 1214d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } else if (test_bit(BTN_TOUCH, device->keyBitmask) 1215d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright && test_bit(ABS_X, device->absBitmask) 1216d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright && test_bit(ABS_Y, device->absBitmask)) { 1217d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright device->classes |= INPUT_DEVICE_CLASS_TOUCH; 1218842500e146cdc0036b2a1a3e2acc7626d005128bMichael Wright // Is this a BT stylus? 1219842500e146cdc0036b2a1a3e2acc7626d005128bMichael Wright } else if ((test_bit(ABS_PRESSURE, device->absBitmask) || 1220842500e146cdc0036b2a1a3e2acc7626d005128bMichael Wright test_bit(BTN_TOUCH, device->keyBitmask)) 1221842500e146cdc0036b2a1a3e2acc7626d005128bMichael Wright && !test_bit(ABS_X, device->absBitmask) 1222842500e146cdc0036b2a1a3e2acc7626d005128bMichael Wright && !test_bit(ABS_Y, device->absBitmask)) { 1223842500e146cdc0036b2a1a3e2acc7626d005128bMichael Wright device->classes |= INPUT_DEVICE_CLASS_EXTERNAL_STYLUS; 1224842500e146cdc0036b2a1a3e2acc7626d005128bMichael Wright // Keyboard will try to claim some of the buttons but we really want to reserve those so we 1225842500e146cdc0036b2a1a3e2acc7626d005128bMichael Wright // can fuse it with the touch screen data, so just take them back. Note this means an 1226842500e146cdc0036b2a1a3e2acc7626d005128bMichael Wright // external stylus cannot also be a keyboard device. 1227842500e146cdc0036b2a1a3e2acc7626d005128bMichael Wright device->classes &= ~INPUT_DEVICE_CLASS_KEYBOARD; 1228d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 1229d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 1230d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // See if this device is a joystick. 1231d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // Assumes that joysticks always have gamepad buttons in order to distinguish them 1232d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // from other devices such as accelerometers that also have absolute axes. 1233d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (haveGamepadButtons) { 1234d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright uint32_t assumedClasses = device->classes | INPUT_DEVICE_CLASS_JOYSTICK; 1235d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright for (int i = 0; i <= ABS_MAX; i++) { 1236d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (test_bit(i, device->absBitmask) 1237d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright && (getAbsAxisUsage(i, assumedClasses) & INPUT_DEVICE_CLASS_JOYSTICK)) { 1238d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright device->classes = assumedClasses; 1239d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright break; 1240d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 1241d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 1242d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 1243d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 1244d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // Check whether this device has switches. 1245d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright for (int i = 0; i <= SW_MAX; i++) { 1246d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (test_bit(i, device->swBitmask)) { 1247d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright device->classes |= INPUT_DEVICE_CLASS_SWITCH; 1248d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright break; 1249d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 1250d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 1251d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 1252d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // Check whether this device supports the vibrator. 1253d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (test_bit(FF_RUMBLE, device->ffBitmask)) { 1254d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright device->classes |= INPUT_DEVICE_CLASS_VIBRATOR; 1255d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 1256d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 1257d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // Configure virtual keys. 1258d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if ((device->classes & INPUT_DEVICE_CLASS_TOUCH)) { 1259d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // Load the virtual keys for the touch screen, if any. 1260d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // We do this now so that we can make sure to load the keymap if necessary. 1261d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright status_t status = loadVirtualKeyMapLocked(device); 1262d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (!status) { 1263d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright device->classes |= INPUT_DEVICE_CLASS_KEYBOARD; 1264d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 1265d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 1266d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 1267d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // Load the key map. 1268d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // We need to do this for joysticks too because the key layout may specify axes. 1269d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright status_t keyMapStatus = NAME_NOT_FOUND; 1270d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (device->classes & (INPUT_DEVICE_CLASS_KEYBOARD | INPUT_DEVICE_CLASS_JOYSTICK)) { 1271d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // Load the keymap for the device. 1272d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright keyMapStatus = loadKeyMapLocked(device); 1273d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 1274d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 1275d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // Configure the keyboard, gamepad or virtual keyboard. 1276d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (device->classes & INPUT_DEVICE_CLASS_KEYBOARD) { 1277d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // Register the keyboard as a built-in keyboard if it is eligible. 1278d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (!keyMapStatus 1279d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright && mBuiltInKeyboardId == NO_BUILT_IN_KEYBOARD 1280d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright && isEligibleBuiltInKeyboard(device->identifier, 1281d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright device->configuration, &device->keyMap)) { 1282d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright mBuiltInKeyboardId = device->id; 1283d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 1284d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 1285d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // 'Q' key support = cheap test of whether this is an alpha-capable kbd 1286d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (hasKeycodeLocked(device, AKEYCODE_Q)) { 1287d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright device->classes |= INPUT_DEVICE_CLASS_ALPHAKEY; 1288d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 1289d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 1290d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // See if this device has a DPAD. 1291d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (hasKeycodeLocked(device, AKEYCODE_DPAD_UP) && 1292d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright hasKeycodeLocked(device, AKEYCODE_DPAD_DOWN) && 1293d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright hasKeycodeLocked(device, AKEYCODE_DPAD_LEFT) && 1294d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright hasKeycodeLocked(device, AKEYCODE_DPAD_RIGHT) && 1295d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright hasKeycodeLocked(device, AKEYCODE_DPAD_CENTER)) { 1296d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright device->classes |= INPUT_DEVICE_CLASS_DPAD; 1297d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 1298d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 1299d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // See if this device has a gamepad. 1300d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright for (size_t i = 0; i < sizeof(GAMEPAD_KEYCODES)/sizeof(GAMEPAD_KEYCODES[0]); i++) { 1301d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (hasKeycodeLocked(device, GAMEPAD_KEYCODES[i])) { 1302d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright device->classes |= INPUT_DEVICE_CLASS_GAMEPAD; 1303d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright break; 1304d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 1305d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 1306d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 1307d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // Disable kernel key repeat since we handle it ourselves 1308d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright unsigned int repeatRate[] = {0,0}; 1309d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (ioctl(fd, EVIOCSREP, repeatRate)) { 1310d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ALOGW("Unable to disable kernel key repeat for %s: %s", devicePath, strerror(errno)); 1311d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 1312d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 1313d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 1314d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // If the device isn't recognized as something we handle, don't monitor it. 1315d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (device->classes == 0) { 1316d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ALOGV("Dropping device: id=%d, path='%s', name='%s'", 1317d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright deviceId, devicePath, device->identifier.name.string()); 1318d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright delete device; 1319d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright return -1; 1320d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 1321d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 1322063ff53d0b0a0d670ea0185e687526d8fd302820Tim Kilbourn // Determine whether the device has a mic. 1323063ff53d0b0a0d670ea0185e687526d8fd302820Tim Kilbourn if (deviceHasMicLocked(device)) { 1324063ff53d0b0a0d670ea0185e687526d8fd302820Tim Kilbourn device->classes |= INPUT_DEVICE_CLASS_MIC; 1325063ff53d0b0a0d670ea0185e687526d8fd302820Tim Kilbourn } 1326063ff53d0b0a0d670ea0185e687526d8fd302820Tim Kilbourn 1327d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // Determine whether the device is external or internal. 1328d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (isExternalDeviceLocked(device)) { 1329d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright device->classes |= INPUT_DEVICE_CLASS_EXTERNAL; 1330d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 1331d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 133242f2c6a92ca54ff77003ac174e0771351fbe537cMichael Wright if (device->classes & (INPUT_DEVICE_CLASS_JOYSTICK | INPUT_DEVICE_CLASS_DPAD) 133342f2c6a92ca54ff77003ac174e0771351fbe537cMichael Wright && device->classes & INPUT_DEVICE_CLASS_GAMEPAD) { 1334d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright device->controllerNumber = getNextControllerNumberLocked(device); 1335d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright setLedForController(device); 1336d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 1337d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 1338d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // Register with epoll. 1339d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright struct epoll_event eventItem; 1340d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright memset(&eventItem, 0, sizeof(eventItem)); 13413447df165f53d76791221531b769801741cfe04aTim Kilbourn eventItem.events = EPOLLIN; 13423447df165f53d76791221531b769801741cfe04aTim Kilbourn if (mUsingEpollWakeup) { 13433447df165f53d76791221531b769801741cfe04aTim Kilbourn eventItem.events |= EPOLLWAKEUP; 13443447df165f53d76791221531b769801741cfe04aTim Kilbourn } 1345d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright eventItem.data.u32 = deviceId; 1346d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (epoll_ctl(mEpollFd, EPOLL_CTL_ADD, fd, &eventItem)) { 1347d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ALOGE("Could not add device fd to epoll instance. errno=%d", errno); 1348d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright delete device; 1349d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright return -1; 1350d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 1351d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 1352d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright String8 wakeMechanism("EPOLLWAKEUP"); 1353d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (!mUsingEpollWakeup) { 1354d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright#ifndef EVIOCSSUSPENDBLOCK 1355d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // uapi headers don't include EVIOCSSUSPENDBLOCK, and future kernels 1356d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // will use an epoll flag instead, so as long as we want to support 1357d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // this feature, we need to be prepared to define the ioctl ourselves. 1358d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright#define EVIOCSSUSPENDBLOCK _IOW('E', 0x91, int) 1359d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright#endif 1360d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (ioctl(fd, EVIOCSSUSPENDBLOCK, 1)) { 1361d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright wakeMechanism = "<none>"; 1362d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } else { 1363d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright wakeMechanism = "EVIOCSSUSPENDBLOCK"; 1364d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 1365d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 1366d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 1367d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // Tell the kernel that we want to use the monotonic clock for reporting timestamps 1368d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // associated with input events. This is important because the input system 1369d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // uses the timestamps extensively and assumes they were recorded using the monotonic 1370d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // clock. 1371d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // 1372d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // In older kernel, before Linux 3.4, there was no way to tell the kernel which 1373d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // clock to use to input event timestamps. The standard kernel behavior was to 1374d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // record a real time timestamp, which isn't what we want. Android kernels therefore 1375d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // contained a patch to the evdev_event() function in drivers/input/evdev.c to 1376d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // replace the call to do_gettimeofday() with ktime_get_ts() to cause the monotonic 1377d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // clock to be used instead of the real time clock. 1378d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // 1379d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // As of Linux 3.4, there is a new EVIOCSCLOCKID ioctl to set the desired clock. 1380d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // Therefore, we no longer require the Android-specific kernel patch described above 1381d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // as long as we make sure to set select the monotonic clock. We do that here. 1382d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright int clockId = CLOCK_MONOTONIC; 1383d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright bool usingClockIoctl = !ioctl(fd, EVIOCSCLOCKID, &clockId); 1384d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 1385d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ALOGI("New device: id=%d, fd=%d, path='%s', name='%s', classes=0x%x, " 1386d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright "configuration='%s', keyLayout='%s', keyCharacterMap='%s', builtinKeyboard=%s, " 1387d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright "wakeMechanism=%s, usingClockIoctl=%s", 1388d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright deviceId, fd, devicePath, device->identifier.name.string(), 1389d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright device->classes, 1390d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright device->configurationFile.string(), 1391d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright device->keyMap.keyLayoutFile.string(), 1392d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright device->keyMap.keyCharacterMapFile.string(), 1393d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright toString(mBuiltInKeyboardId == deviceId), 1394d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright wakeMechanism.string(), toString(usingClockIoctl)); 1395d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 1396d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright addDeviceLocked(device); 1397d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright return 0; 1398d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright} 1399d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 1400d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wrightvoid EventHub::createVirtualKeyboardLocked() { 1401d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright InputDeviceIdentifier identifier; 1402d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright identifier.name = "Virtual"; 1403d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright identifier.uniqueId = "<virtual>"; 1404d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright assignDescriptorLocked(identifier); 1405d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 1406d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright Device* device = new Device(-1, VIRTUAL_KEYBOARD_ID, String8("<virtual>"), identifier); 1407d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright device->classes = INPUT_DEVICE_CLASS_KEYBOARD 1408d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright | INPUT_DEVICE_CLASS_ALPHAKEY 1409d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright | INPUT_DEVICE_CLASS_DPAD 1410d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright | INPUT_DEVICE_CLASS_VIRTUAL; 1411d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright loadKeyMapLocked(device); 1412d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright addDeviceLocked(device); 1413d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright} 1414d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 1415d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wrightvoid EventHub::addDeviceLocked(Device* device) { 1416d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright mDevices.add(device->id, device); 1417d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright device->next = mOpeningDevices; 1418d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright mOpeningDevices = device; 1419d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright} 1420d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 1421d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wrightvoid EventHub::loadConfigurationLocked(Device* device) { 1422d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright device->configurationFile = getInputDeviceConfigurationFilePathByDeviceIdentifier( 1423d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright device->identifier, INPUT_DEVICE_CONFIGURATION_FILE_TYPE_CONFIGURATION); 1424d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (device->configurationFile.isEmpty()) { 1425d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ALOGD("No input device configuration file found for device '%s'.", 1426d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright device->identifier.name.string()); 1427d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } else { 1428d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright status_t status = PropertyMap::load(device->configurationFile, 1429d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright &device->configuration); 1430d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (status) { 1431d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ALOGE("Error loading input device configuration file for device '%s'. " 1432d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright "Using default configuration.", 1433d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright device->identifier.name.string()); 1434d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 1435d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 1436d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright} 1437d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 1438d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wrightstatus_t EventHub::loadVirtualKeyMapLocked(Device* device) { 1439d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // The virtual key map is supplied by the kernel as a system board property file. 1440d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright String8 path; 1441d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright path.append("/sys/board_properties/virtualkeys."); 1442d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright path.append(device->identifier.name); 1443d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (access(path.string(), R_OK)) { 1444d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright return NAME_NOT_FOUND; 1445d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 1446d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright return VirtualKeyMap::load(path, &device->virtualKeyMap); 1447d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright} 1448d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 1449d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wrightstatus_t EventHub::loadKeyMapLocked(Device* device) { 1450d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright return device->keyMap.load(device->identifier, device->configuration); 1451d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright} 1452d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 1453d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wrightbool EventHub::isExternalDeviceLocked(Device* device) { 1454d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (device->configuration) { 1455d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright bool value; 1456d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (device->configuration->tryGetProperty(String8("device.internal"), value)) { 1457d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright return !value; 1458d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 1459d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 1460d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright return device->identifier.bus == BUS_USB || device->identifier.bus == BUS_BLUETOOTH; 1461d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright} 1462d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 1463063ff53d0b0a0d670ea0185e687526d8fd302820Tim Kilbournbool EventHub::deviceHasMicLocked(Device* device) { 1464063ff53d0b0a0d670ea0185e687526d8fd302820Tim Kilbourn if (device->configuration) { 1465063ff53d0b0a0d670ea0185e687526d8fd302820Tim Kilbourn bool value; 1466063ff53d0b0a0d670ea0185e687526d8fd302820Tim Kilbourn if (device->configuration->tryGetProperty(String8("audio.mic"), value)) { 1467063ff53d0b0a0d670ea0185e687526d8fd302820Tim Kilbourn return value; 1468063ff53d0b0a0d670ea0185e687526d8fd302820Tim Kilbourn } 1469063ff53d0b0a0d670ea0185e687526d8fd302820Tim Kilbourn } 1470063ff53d0b0a0d670ea0185e687526d8fd302820Tim Kilbourn return false; 1471063ff53d0b0a0d670ea0185e687526d8fd302820Tim Kilbourn} 1472063ff53d0b0a0d670ea0185e687526d8fd302820Tim Kilbourn 1473d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wrightint32_t EventHub::getNextControllerNumberLocked(Device* device) { 1474d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (mControllerNumbers.isFull()) { 1475d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ALOGI("Maximum number of controllers reached, assigning controller number 0 to device %s", 1476d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright device->identifier.name.string()); 1477d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright return 0; 1478d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 1479d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // Since the controller number 0 is reserved for non-controllers, translate all numbers up by 1480d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // one 1481d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright return static_cast<int32_t>(mControllerNumbers.markFirstUnmarkedBit() + 1); 1482d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright} 1483d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 1484d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wrightvoid EventHub::releaseControllerNumberLocked(Device* device) { 1485d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright int32_t num = device->controllerNumber; 1486d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright device->controllerNumber= 0; 1487d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (num == 0) { 1488d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright return; 1489d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 1490d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright mControllerNumbers.clearBit(static_cast<uint32_t>(num - 1)); 1491d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright} 1492d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 1493d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wrightvoid EventHub::setLedForController(Device* device) { 1494d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright for (int i = 0; i < MAX_CONTROLLER_LEDS; i++) { 1495d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright setLedStateLocked(device, ALED_CONTROLLER_1 + i, device->controllerNumber == i + 1); 1496d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 1497d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright} 1498d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 1499d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wrightbool EventHub::hasKeycodeLocked(Device* device, int keycode) const { 15006183eb72ec16ef36a31a9d92ad4268247a906ef0Bernhard Rosenkränzer if (!device->keyMap.haveKeyLayout()) { 1501d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright return false; 1502d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 1503d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 1504d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright Vector<int32_t> scanCodes; 1505d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright device->keyMap.keyLayoutMap->findScanCodesForKey(keycode, &scanCodes); 1506d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright const size_t N = scanCodes.size(); 1507d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright for (size_t i=0; i<N && i<=KEY_MAX; i++) { 1508d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright int32_t sc = scanCodes.itemAt(i); 1509d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (sc >= 0 && sc <= KEY_MAX && test_bit(sc, device->keyBitmask)) { 1510d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright return true; 1511d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 1512d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 1513d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 1514d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright return false; 1515d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright} 1516d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 1517d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wrightstatus_t EventHub::mapLed(Device* device, int32_t led, int32_t* outScanCode) const { 15186183eb72ec16ef36a31a9d92ad4268247a906ef0Bernhard Rosenkränzer if (!device->keyMap.haveKeyLayout()) { 1519d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright return NAME_NOT_FOUND; 1520d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 1521d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 1522d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright int32_t scanCode; 1523d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if(device->keyMap.keyLayoutMap->findScanCodeForLed(led, &scanCode) != NAME_NOT_FOUND) { 1524d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if(scanCode >= 0 && scanCode <= LED_MAX && test_bit(scanCode, device->ledBitmask)) { 1525d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright *outScanCode = scanCode; 1526d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright return NO_ERROR; 1527d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 1528d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 1529d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright return NAME_NOT_FOUND; 1530d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright} 1531d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 1532d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wrightstatus_t EventHub::closeDeviceByPathLocked(const char *devicePath) { 1533d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright Device* device = getDeviceByPathLocked(devicePath); 1534d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (device) { 1535d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright closeDeviceLocked(device); 1536d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright return 0; 1537d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 1538d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ALOGV("Remove device: %s not found, device may already have been removed.", devicePath); 1539d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright return -1; 1540d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright} 1541d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 1542d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wrightvoid EventHub::closeAllDevicesLocked() { 1543d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright while (mDevices.size() > 0) { 1544d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright closeDeviceLocked(mDevices.valueAt(mDevices.size() - 1)); 1545d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 1546d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright} 1547d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 1548d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wrightvoid EventHub::closeDeviceLocked(Device* device) { 1549d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ALOGI("Removed device: path=%s name=%s id=%d fd=%d classes=0x%x\n", 1550d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright device->path.string(), device->identifier.name.string(), device->id, 1551d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright device->fd, device->classes); 1552d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 1553d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (device->id == mBuiltInKeyboardId) { 1554d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ALOGW("built-in keyboard device %s (id=%d) is closing! the apps will not like this", 1555d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright device->path.string(), mBuiltInKeyboardId); 1556d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright mBuiltInKeyboardId = NO_BUILT_IN_KEYBOARD; 1557d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 1558d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 1559d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (!device->isVirtual()) { 1560d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (epoll_ctl(mEpollFd, EPOLL_CTL_DEL, device->fd, NULL)) { 1561d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ALOGW("Could not remove device fd from epoll instance. errno=%d", errno); 1562d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 1563d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 1564d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 1565d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright releaseControllerNumberLocked(device); 1566d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 1567d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright mDevices.removeItem(device->id); 1568d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright device->close(); 1569d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 1570d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // Unlink for opening devices list if it is present. 1571d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright Device* pred = NULL; 1572d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright bool found = false; 1573d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright for (Device* entry = mOpeningDevices; entry != NULL; ) { 1574d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (entry == device) { 1575d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright found = true; 1576d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright break; 1577d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 1578d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright pred = entry; 1579d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright entry = entry->next; 1580d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 1581d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (found) { 1582d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // Unlink the device from the opening devices list then delete it. 1583d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // We don't need to tell the client that the device was closed because 1584d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // it does not even know it was opened in the first place. 1585d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ALOGI("Device %s was immediately closed after opening.", device->path.string()); 1586d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (pred) { 1587d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright pred->next = device->next; 1588d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } else { 1589d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright mOpeningDevices = device->next; 1590d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 1591d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright delete device; 1592d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } else { 1593d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // Link into closing devices list. 1594d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // The device will be deleted later after we have informed the client. 1595d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright device->next = mClosingDevices; 1596d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright mClosingDevices = device; 1597d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 1598d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright} 1599d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 1600d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wrightstatus_t EventHub::readNotifyLocked() { 1601d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright int res; 1602d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright char devname[PATH_MAX]; 1603d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright char *filename; 1604d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright char event_buf[512]; 1605d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright int event_size; 1606d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright int event_pos = 0; 1607d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright struct inotify_event *event; 1608d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 1609d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ALOGV("EventHub::readNotify nfd: %d\n", mINotifyFd); 1610d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright res = read(mINotifyFd, event_buf, sizeof(event_buf)); 1611d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if(res < (int)sizeof(*event)) { 1612d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if(errno == EINTR) 1613d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright return 0; 1614d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ALOGW("could not get event, %s\n", strerror(errno)); 1615d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright return -1; 1616d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 1617d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright //printf("got %d bytes of event information\n", res); 1618d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 1619d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright strcpy(devname, DEVICE_PATH); 1620d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright filename = devname + strlen(devname); 1621d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright *filename++ = '/'; 1622d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 1623d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright while(res >= (int)sizeof(*event)) { 1624d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright event = (struct inotify_event *)(event_buf + event_pos); 1625d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright //printf("%d: %08x \"%s\"\n", event->wd, event->mask, event->len ? event->name : ""); 1626d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if(event->len) { 1627d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright strcpy(filename, event->name); 1628d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if(event->mask & IN_CREATE) { 1629d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright openDeviceLocked(devname); 1630d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } else { 1631d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ALOGI("Removing device '%s' due to inotify event\n", devname); 1632d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright closeDeviceByPathLocked(devname); 1633d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 1634d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 1635d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright event_size = sizeof(*event) + event->len; 1636d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright res -= event_size; 1637d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright event_pos += event_size; 1638d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 1639d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright return 0; 1640d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright} 1641d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 1642d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wrightstatus_t EventHub::scanDirLocked(const char *dirname) 1643d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright{ 1644d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright char devname[PATH_MAX]; 1645d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright char *filename; 1646d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright DIR *dir; 1647d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright struct dirent *de; 1648d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright dir = opendir(dirname); 1649d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if(dir == NULL) 1650d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright return -1; 1651d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright strcpy(devname, dirname); 1652d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright filename = devname + strlen(devname); 1653d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright *filename++ = '/'; 1654d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright while((de = readdir(dir))) { 1655d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if(de->d_name[0] == '.' && 1656d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright (de->d_name[1] == '\0' || 1657d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright (de->d_name[1] == '.' && de->d_name[2] == '\0'))) 1658d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright continue; 1659d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright strcpy(filename, de->d_name); 1660d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright openDeviceLocked(devname); 1661d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 1662d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright closedir(dir); 1663d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright return 0; 1664d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright} 1665d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 1666d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wrightvoid EventHub::requestReopenDevices() { 1667d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright ALOGV("requestReopenDevices() called"); 1668d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 1669d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright AutoMutex _l(mLock); 1670d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright mNeedToReopenDevices = true; 1671d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright} 1672d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 1673d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wrightvoid EventHub::dump(String8& dump) { 1674d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright dump.append("Event Hub State:\n"); 1675d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 1676d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright { // acquire lock 1677d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright AutoMutex _l(mLock); 1678d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 1679d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright dump.appendFormat(INDENT "BuiltInKeyboardId: %d\n", mBuiltInKeyboardId); 1680d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 1681d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright dump.append(INDENT "Devices:\n"); 1682d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 1683d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright for (size_t i = 0; i < mDevices.size(); i++) { 1684d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright const Device* device = mDevices.valueAt(i); 1685d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright if (mBuiltInKeyboardId == device->id) { 1686d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright dump.appendFormat(INDENT2 "%d: %s (aka device 0 - built-in keyboard)\n", 1687d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright device->id, device->identifier.name.string()); 1688d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } else { 1689d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright dump.appendFormat(INDENT2 "%d: %s\n", device->id, 1690d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright device->identifier.name.string()); 1691d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 1692d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright dump.appendFormat(INDENT3 "Classes: 0x%08x\n", device->classes); 1693d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright dump.appendFormat(INDENT3 "Path: %s\n", device->path.string()); 1694d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright dump.appendFormat(INDENT3 "Descriptor: %s\n", device->identifier.descriptor.string()); 1695d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright dump.appendFormat(INDENT3 "Location: %s\n", device->identifier.location.string()); 1696d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright dump.appendFormat(INDENT3 "ControllerNumber: %d\n", device->controllerNumber); 1697d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright dump.appendFormat(INDENT3 "UniqueId: %s\n", device->identifier.uniqueId.string()); 1698d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright dump.appendFormat(INDENT3 "Identifier: bus=0x%04x, vendor=0x%04x, " 1699d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright "product=0x%04x, version=0x%04x\n", 1700d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright device->identifier.bus, device->identifier.vendor, 1701d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright device->identifier.product, device->identifier.version); 1702d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright dump.appendFormat(INDENT3 "KeyLayoutFile: %s\n", 1703d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright device->keyMap.keyLayoutFile.string()); 1704d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright dump.appendFormat(INDENT3 "KeyCharacterMapFile: %s\n", 1705d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright device->keyMap.keyCharacterMapFile.string()); 1706d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright dump.appendFormat(INDENT3 "ConfigurationFile: %s\n", 1707d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright device->configurationFile.string()); 1708d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright dump.appendFormat(INDENT3 "HaveKeyboardLayoutOverlay: %s\n", 1709d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright toString(device->overlayKeyMap != NULL)); 1710d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } 1711d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright } // release lock 1712d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright} 1713d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 1714d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wrightvoid EventHub::monitor() { 1715d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright // Acquire and release the lock to ensure that the event hub has not deadlocked. 1716d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright mLock.lock(); 1717d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright mLock.unlock(); 1718d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright} 1719d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 1720d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright 1721d02c5b6aace05d9fd938e2d03705ac4f60f8da19Michael Wright}; // namespace android 1722