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-rw-r--r--widget/gonk/libui/EventHub.cpp1549
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diff --git a/widget/gonk/libui/EventHub.cpp b/widget/gonk/libui/EventHub.cpp
deleted file mode 100644
index 9da29bbeb..000000000
--- a/widget/gonk/libui/EventHub.cpp
+++ /dev/null
@@ -1,1549 +0,0 @@
-/*
- * Copyright (C) 2005 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define LOG_TAG "EventHub"
-
-// #define LOG_NDEBUG 0
-#include "cutils_log.h"
-
-#include "EventHub.h"
-
-#include <hardware_legacy/power.h>
-
-#include <cutils/properties.h>
-#include "cutils_log.h"
-#include <utils/Timers.h>
-#include <utils/threads.h>
-#include <utils/Errors.h>
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <memory.h>
-#include <errno.h>
-#include <assert.h>
-
-#include "KeyLayoutMap.h"
-#include "KeyCharacterMap.h"
-#include "VirtualKeyMap.h"
-
-#include <string.h>
-#include <stdint.h>
-#include <dirent.h>
-
-#include <sys/inotify.h>
-#include <sys/epoll.h>
-#include <sys/ioctl.h>
-#include <sys/limits.h>
-#include "sha1.h"
-
-/* this macro is used to tell if "bit" is set in "array"
- * it selects a byte from the array, and does a boolean AND
- * operation with a byte that only has the relevant bit set.
- * eg. to check for the 12th bit, we do (array[1] & 1<<4)
- */
-#define test_bit(bit, array) (array[bit/8] & (1<<(bit%8)))
-
-/* this macro computes the number of bytes needed to represent a bit array of the specified size */
-#define sizeof_bit_array(bits) ((bits + 7) / 8)
-
-#define INDENT " "
-#define INDENT2 " "
-#define INDENT3 " "
-
-namespace android {
-
-static const char *WAKE_LOCK_ID = "KeyEvents";
-static const char *DEVICE_PATH = "/dev/input";
-
-/* return the larger integer */
-static inline int max(int v1, int v2)
-{
- return (v1 > v2) ? v1 : v2;
-}
-
-static inline const char* toString(bool value) {
- return value ? "true" : "false";
-}
-
-static String8 sha1(const String8& in) {
- SHA1_CTX ctx;
- SHA1Init(&ctx);
- SHA1Update(&ctx, reinterpret_cast<const u_char*>(in.string()), in.size());
- u_char digest[SHA1_DIGEST_LENGTH];
- SHA1Final(digest, &ctx);
-
- String8 out;
- for (size_t i = 0; i < SHA1_DIGEST_LENGTH; i++) {
- out.appendFormat("%02x", digest[i]);
- }
- return out;
-}
-
-static void setDescriptor(InputDeviceIdentifier& identifier) {
- // Compute a device descriptor that uniquely identifies the device.
- // The descriptor is assumed to be a stable identifier. Its value should not
- // change between reboots, reconnections, firmware updates or new releases of Android.
- // Ideally, we also want the descriptor to be short and relatively opaque.
- String8 rawDescriptor;
- rawDescriptor.appendFormat(":%04x:%04x:", identifier.vendor, identifier.product);
- if (!identifier.uniqueId.isEmpty()) {
- rawDescriptor.append("uniqueId:");
- rawDescriptor.append(identifier.uniqueId);
- } if (identifier.vendor == 0 && identifier.product == 0) {
- // If we don't know the vendor and product id, then the device is probably
- // built-in so we need to rely on other information to uniquely identify
- // the input device. Usually we try to avoid relying on the device name or
- // location but for built-in input device, they are unlikely to ever change.
- if (!identifier.name.isEmpty()) {
- rawDescriptor.append("name:");
- rawDescriptor.append(identifier.name);
- } else if (!identifier.location.isEmpty()) {
- rawDescriptor.append("location:");
- rawDescriptor.append(identifier.location);
- }
- }
- identifier.descriptor = sha1(rawDescriptor);
- ALOGV("Created descriptor: raw=%s, cooked=%s", rawDescriptor.string(),
- identifier.descriptor.string());
-}
-
-// --- Global Functions ---
-
-uint32_t getAbsAxisUsage(int32_t axis, uint32_t deviceClasses) {
- // Touch devices get dibs on touch-related axes.
- if (deviceClasses & INPUT_DEVICE_CLASS_TOUCH) {
- switch (axis) {
- case ABS_X:
- case ABS_Y:
- case ABS_PRESSURE:
- case ABS_TOOL_WIDTH:
- case ABS_DISTANCE:
- case ABS_TILT_X:
- case ABS_TILT_Y:
- case ABS_MT_SLOT:
- case ABS_MT_TOUCH_MAJOR:
- case ABS_MT_TOUCH_MINOR:
- case ABS_MT_WIDTH_MAJOR:
- case ABS_MT_WIDTH_MINOR:
- case ABS_MT_ORIENTATION:
- case ABS_MT_POSITION_X:
- case ABS_MT_POSITION_Y:
- case ABS_MT_TOOL_TYPE:
- case ABS_MT_BLOB_ID:
- case ABS_MT_TRACKING_ID:
- case ABS_MT_PRESSURE:
- case ABS_MT_DISTANCE:
- return INPUT_DEVICE_CLASS_TOUCH;
- }
- }
-
- // Joystick devices get the rest.
- return deviceClasses & INPUT_DEVICE_CLASS_JOYSTICK;
-}
-
-// --- EventHub::Device ---
-
-EventHub::Device::Device(int fd, int32_t id, const String8& path,
- const InputDeviceIdentifier& identifier) :
- next(NULL),
- fd(fd), id(id), path(path), identifier(identifier),
- classes(0), configuration(NULL), virtualKeyMap(NULL),
- ffEffectPlaying(false), ffEffectId(-1),
- timestampOverrideSec(0), timestampOverrideUsec(0) {
- memset(keyBitmask, 0, sizeof(keyBitmask));
- memset(absBitmask, 0, sizeof(absBitmask));
- memset(relBitmask, 0, sizeof(relBitmask));
- memset(swBitmask, 0, sizeof(swBitmask));
- memset(ledBitmask, 0, sizeof(ledBitmask));
- memset(ffBitmask, 0, sizeof(ffBitmask));
- memset(propBitmask, 0, sizeof(propBitmask));
-}
-
-EventHub::Device::~Device() {
- close();
- delete configuration;
- delete virtualKeyMap;
-}
-
-void EventHub::Device::close() {
- if (fd >= 0) {
- ::close(fd);
- fd = -1;
- }
-}
-
-
-// --- EventHub ---
-
-const uint32_t EventHub::EPOLL_ID_INOTIFY;
-const uint32_t EventHub::EPOLL_ID_WAKE;
-const int EventHub::EPOLL_SIZE_HINT;
-const int EventHub::EPOLL_MAX_EVENTS;
-
-EventHub::EventHub(void) :
- mBuiltInKeyboardId(NO_BUILT_IN_KEYBOARD), mNextDeviceId(1),
- mOpeningDevices(0), mClosingDevices(0),
- mNeedToSendFinishedDeviceScan(false),
- mNeedToReopenDevices(false), mNeedToScanDevices(true),
- mPendingEventCount(0), mPendingEventIndex(0), mPendingINotify(false) {
- acquire_wake_lock(PARTIAL_WAKE_LOCK, WAKE_LOCK_ID);
-
- mEpollFd = epoll_create(EPOLL_SIZE_HINT);
- LOG_ALWAYS_FATAL_IF(mEpollFd < 0, "Could not create epoll instance. errno=%d", errno);
-
- mINotifyFd = inotify_init();
- int result = inotify_add_watch(mINotifyFd, DEVICE_PATH, IN_DELETE | IN_CREATE);
- LOG_ALWAYS_FATAL_IF(result < 0, "Could not register INotify for %s. errno=%d",
- DEVICE_PATH, errno);
-
- struct epoll_event eventItem;
- memset(&eventItem, 0, sizeof(eventItem));
- eventItem.events = EPOLLIN;
- eventItem.data.u32 = EPOLL_ID_INOTIFY;
- result = epoll_ctl(mEpollFd, EPOLL_CTL_ADD, mINotifyFd, &eventItem);
- LOG_ALWAYS_FATAL_IF(result != 0, "Could not add INotify to epoll instance. errno=%d", errno);
-
- int wakeFds[2];
- result = pipe(wakeFds);
- LOG_ALWAYS_FATAL_IF(result != 0, "Could not create wake pipe. errno=%d", errno);
-
- mWakeReadPipeFd = wakeFds[0];
- mWakeWritePipeFd = wakeFds[1];
-
- result = fcntl(mWakeReadPipeFd, F_SETFL, O_NONBLOCK);
- LOG_ALWAYS_FATAL_IF(result != 0, "Could not make wake read pipe non-blocking. errno=%d",
- errno);
-
- result = fcntl(mWakeWritePipeFd, F_SETFL, O_NONBLOCK);
- LOG_ALWAYS_FATAL_IF(result != 0, "Could not make wake write pipe non-blocking. errno=%d",
- errno);
-
- eventItem.data.u32 = EPOLL_ID_WAKE;
- result = epoll_ctl(mEpollFd, EPOLL_CTL_ADD, mWakeReadPipeFd, &eventItem);
- LOG_ALWAYS_FATAL_IF(result != 0, "Could not add wake read pipe to epoll instance. errno=%d",
- errno);
-}
-
-EventHub::~EventHub(void) {
- closeAllDevicesLocked();
-
- while (mClosingDevices) {
- Device* device = mClosingDevices;
- mClosingDevices = device->next;
- delete device;
- }
-
- ::close(mEpollFd);
- ::close(mINotifyFd);
- ::close(mWakeReadPipeFd);
- ::close(mWakeWritePipeFd);
-
- release_wake_lock(WAKE_LOCK_ID);
-}
-
-InputDeviceIdentifier EventHub::getDeviceIdentifier(int32_t deviceId) const {
- AutoMutex _l(mLock);
- Device* device = getDeviceLocked(deviceId);
- if (device == NULL) return InputDeviceIdentifier();
- return device->identifier;
-}
-
-uint32_t EventHub::getDeviceClasses(int32_t deviceId) const {
- AutoMutex _l(mLock);
- Device* device = getDeviceLocked(deviceId);
- if (device == NULL) return 0;
- return device->classes;
-}
-
-void EventHub::getConfiguration(int32_t deviceId, PropertyMap* outConfiguration) const {
- AutoMutex _l(mLock);
- Device* device = getDeviceLocked(deviceId);
- if (device && device->configuration) {
- *outConfiguration = *device->configuration;
- } else {
- outConfiguration->clear();
- }
-}
-
-status_t EventHub::getAbsoluteAxisInfo(int32_t deviceId, int axis,
- RawAbsoluteAxisInfo* outAxisInfo) const {
- outAxisInfo->clear();
-
- if (axis >= 0 && axis <= ABS_MAX) {
- AutoMutex _l(mLock);
-
- Device* device = getDeviceLocked(deviceId);
- if (device && !device->isVirtual() && test_bit(axis, device->absBitmask)) {
- struct input_absinfo info;
- if(ioctl(device->fd, EVIOCGABS(axis), &info)) {
- ALOGW("Error reading absolute controller %d for device %s fd %d, errno=%d",
- axis, device->identifier.name.string(), device->fd, errno);
- return -errno;
- }
-
- if (info.minimum != info.maximum) {
- outAxisInfo->valid = true;
- outAxisInfo->minValue = info.minimum;
- outAxisInfo->maxValue = info.maximum;
- outAxisInfo->flat = info.flat;
- outAxisInfo->fuzz = info.fuzz;
- outAxisInfo->resolution = info.resolution;
- }
- return OK;
- }
- }
- return -1;
-}
-
-bool EventHub::hasRelativeAxis(int32_t deviceId, int axis) const {
- if (axis >= 0 && axis <= REL_MAX) {
- AutoMutex _l(mLock);
-
- Device* device = getDeviceLocked(deviceId);
- if (device) {
- return test_bit(axis, device->relBitmask);
- }
- }
- return false;
-}
-
-bool EventHub::hasInputProperty(int32_t deviceId, int property) const {
- if (property >= 0 && property <= INPUT_PROP_MAX) {
- AutoMutex _l(mLock);
-
- Device* device = getDeviceLocked(deviceId);
- if (device) {
- return test_bit(property, device->propBitmask);
- }
- }
- return false;
-}
-
-int32_t EventHub::getScanCodeState(int32_t deviceId, int32_t scanCode) const {
- if (scanCode >= 0 && scanCode <= KEY_MAX) {
- AutoMutex _l(mLock);
-
- Device* device = getDeviceLocked(deviceId);
- if (device && !device->isVirtual() && test_bit(scanCode, device->keyBitmask)) {
- uint8_t keyState[sizeof_bit_array(KEY_MAX + 1)];
- memset(keyState, 0, sizeof(keyState));
- if (ioctl(device->fd, EVIOCGKEY(sizeof(keyState)), keyState) >= 0) {
- return test_bit(scanCode, keyState) ? AKEY_STATE_DOWN : AKEY_STATE_UP;
- }
- }
- }
- return AKEY_STATE_UNKNOWN;
-}
-
-int32_t EventHub::getKeyCodeState(int32_t deviceId, int32_t keyCode) const {
- AutoMutex _l(mLock);
-
- Device* device = getDeviceLocked(deviceId);
- if (device && !device->isVirtual() && device->keyMap.haveKeyLayout()) {
- Vector<int32_t> scanCodes;
- device->keyMap.keyLayoutMap->findScanCodesForKey(keyCode, &scanCodes);
- if (scanCodes.size() != 0) {
- uint8_t keyState[sizeof_bit_array(KEY_MAX + 1)];
- memset(keyState, 0, sizeof(keyState));
- if (ioctl(device->fd, EVIOCGKEY(sizeof(keyState)), keyState) >= 0) {
- for (size_t i = 0; i < scanCodes.size(); i++) {
- int32_t sc = scanCodes.itemAt(i);
- if (sc >= 0 && sc <= KEY_MAX && test_bit(sc, keyState)) {
- return AKEY_STATE_DOWN;
- }
- }
- return AKEY_STATE_UP;
- }
- }
- }
- return AKEY_STATE_UNKNOWN;
-}
-
-int32_t EventHub::getSwitchState(int32_t deviceId, int32_t sw) const {
- if (sw >= 0 && sw <= SW_MAX) {
- AutoMutex _l(mLock);
-
- Device* device = getDeviceLocked(deviceId);
- if (device && !device->isVirtual() && test_bit(sw, device->swBitmask)) {
- uint8_t swState[sizeof_bit_array(SW_MAX + 1)];
- memset(swState, 0, sizeof(swState));
- if (ioctl(device->fd, EVIOCGSW(sizeof(swState)), swState) >= 0) {
- return test_bit(sw, swState) ? AKEY_STATE_DOWN : AKEY_STATE_UP;
- }
- }
- }
- return AKEY_STATE_UNKNOWN;
-}
-
-status_t EventHub::getAbsoluteAxisValue(int32_t deviceId, int32_t axis, int32_t* outValue) const {
- *outValue = 0;
-
- if (axis >= 0 && axis <= ABS_MAX) {
- AutoMutex _l(mLock);
-
- Device* device = getDeviceLocked(deviceId);
- if (device && !device->isVirtual() && test_bit(axis, device->absBitmask)) {
- struct input_absinfo info;
- if(ioctl(device->fd, EVIOCGABS(axis), &info)) {
- ALOGW("Error reading absolute controller %d for device %s fd %d, errno=%d",
- axis, device->identifier.name.string(), device->fd, errno);
- return -errno;
- }
-
- *outValue = info.value;
- return OK;
- }
- }
- return -1;
-}
-
-bool EventHub::markSupportedKeyCodes(int32_t deviceId, size_t numCodes,
- const int32_t* keyCodes, uint8_t* outFlags) const {
- AutoMutex _l(mLock);
-
- Device* device = getDeviceLocked(deviceId);
- if (device && device->keyMap.haveKeyLayout()) {
- Vector<int32_t> scanCodes;
- for (size_t codeIndex = 0; codeIndex < numCodes; codeIndex++) {
- scanCodes.clear();
-
- status_t err = device->keyMap.keyLayoutMap->findScanCodesForKey(
- keyCodes[codeIndex], &scanCodes);
- if (! err) {
- // check the possible scan codes identified by the layout map against the
- // map of codes actually emitted by the driver
- for (size_t sc = 0; sc < scanCodes.size(); sc++) {
- if (test_bit(scanCodes[sc], device->keyBitmask)) {
- outFlags[codeIndex] = 1;
- break;
- }
- }
- }
- }
- return true;
- }
- return false;
-}
-
-status_t EventHub::mapKey(int32_t deviceId, int32_t scanCode, int32_t usageCode,
- int32_t* outKeycode, uint32_t* outFlags) const {
- AutoMutex _l(mLock);
- Device* device = getDeviceLocked(deviceId);
-
- if (device) {
- // Check the key character map first.
- sp<KeyCharacterMap> kcm = device->getKeyCharacterMap();
- if (kcm != NULL) {
- if (!kcm->mapKey(scanCode, usageCode, outKeycode)) {
- *outFlags = 0;
- return NO_ERROR;
- }
- }
-
- // Check the key layout next.
- if (device->keyMap.haveKeyLayout()) {
- if (!device->keyMap.keyLayoutMap->mapKey(
- scanCode, usageCode, outKeycode, outFlags)) {
- return NO_ERROR;
- }
- }
- }
-
- *outKeycode = 0;
- *outFlags = 0;
- return NAME_NOT_FOUND;
-}
-
-status_t EventHub::mapAxis(int32_t deviceId, int32_t scanCode, AxisInfo* outAxisInfo) const {
- AutoMutex _l(mLock);
- Device* device = getDeviceLocked(deviceId);
-
- if (device && device->keyMap.haveKeyLayout()) {
- status_t err = device->keyMap.keyLayoutMap->mapAxis(scanCode, outAxisInfo);
- if (err == NO_ERROR) {
- return NO_ERROR;
- }
- }
-
- return NAME_NOT_FOUND;
-}
-
-void EventHub::setExcludedDevices(const Vector<String8>& devices) {
- AutoMutex _l(mLock);
-
- mExcludedDevices = devices;
-}
-
-bool EventHub::hasScanCode(int32_t deviceId, int32_t scanCode) const {
- AutoMutex _l(mLock);
- Device* device = getDeviceLocked(deviceId);
- if (device && scanCode >= 0 && scanCode <= KEY_MAX) {
- if (test_bit(scanCode, device->keyBitmask)) {
- return true;
- }
- }
- return false;
-}
-
-bool EventHub::hasLed(int32_t deviceId, int32_t led) const {
- AutoMutex _l(mLock);
- Device* device = getDeviceLocked(deviceId);
- if (device && led >= 0 && led <= LED_MAX) {
- if (test_bit(led, device->ledBitmask)) {
- return true;
- }
- }
- return false;
-}
-
-void EventHub::setLedState(int32_t deviceId, int32_t led, bool on) {
- AutoMutex _l(mLock);
- Device* device = getDeviceLocked(deviceId);
- if (device && !device->isVirtual() && led >= 0 && led <= LED_MAX) {
- struct input_event ev;
- ev.time.tv_sec = 0;
- ev.time.tv_usec = 0;
- ev.type = EV_LED;
- ev.code = led;
- ev.value = on ? 1 : 0;
-
- ssize_t nWrite;
- do {
- nWrite = write(device->fd, &ev, sizeof(struct input_event));
- } while (nWrite == -1 && errno == EINTR);
- }
-}
-
-void EventHub::getVirtualKeyDefinitions(int32_t deviceId,
- Vector<VirtualKeyDefinition>& outVirtualKeys) const {
- outVirtualKeys.clear();
-
- AutoMutex _l(mLock);
- Device* device = getDeviceLocked(deviceId);
- if (device && device->virtualKeyMap) {
- outVirtualKeys.appendVector(device->virtualKeyMap->getVirtualKeys());
- }
-}
-
-sp<KeyCharacterMap> EventHub::getKeyCharacterMap(int32_t deviceId) const {
- AutoMutex _l(mLock);
- Device* device = getDeviceLocked(deviceId);
- if (device) {
- return device->getKeyCharacterMap();
- }
- return NULL;
-}
-
-bool EventHub::setKeyboardLayoutOverlay(int32_t deviceId,
- const sp<KeyCharacterMap>& map) {
- AutoMutex _l(mLock);
- Device* device = getDeviceLocked(deviceId);
- if (device) {
- if (map != device->overlayKeyMap) {
- device->overlayKeyMap = map;
- device->combinedKeyMap = KeyCharacterMap::combine(
- device->keyMap.keyCharacterMap, map);
- return true;
- }
- }
- return false;
-}
-
-void EventHub::vibrate(int32_t deviceId, nsecs_t duration) {
- AutoMutex _l(mLock);
- Device* device = getDeviceLocked(deviceId);
- if (device && !device->isVirtual()) {
- ff_effect effect;
- memset(&effect, 0, sizeof(effect));
- effect.type = FF_RUMBLE;
- effect.id = device->ffEffectId;
- effect.u.rumble.strong_magnitude = 0xc000;
- effect.u.rumble.weak_magnitude = 0xc000;
- effect.replay.length = (duration + 999999LL) / 1000000LL;
- effect.replay.delay = 0;
- if (ioctl(device->fd, EVIOCSFF, &effect)) {
- ALOGW("Could not upload force feedback effect to device %s due to error %d.",
- device->identifier.name.string(), errno);
- return;
- }
- device->ffEffectId = effect.id;
-
- struct input_event ev;
- ev.time.tv_sec = 0;
- ev.time.tv_usec = 0;
- ev.type = EV_FF;
- ev.code = device->ffEffectId;
- ev.value = 1;
- if (write(device->fd, &ev, sizeof(ev)) != sizeof(ev)) {
- ALOGW("Could not start force feedback effect on device %s due to error %d.",
- device->identifier.name.string(), errno);
- return;
- }
- device->ffEffectPlaying = true;
- }
-}
-
-void EventHub::cancelVibrate(int32_t deviceId) {
- AutoMutex _l(mLock);
- Device* device = getDeviceLocked(deviceId);
- if (device && !device->isVirtual()) {
- if (device->ffEffectPlaying) {
- device->ffEffectPlaying = false;
-
- struct input_event ev;
- ev.time.tv_sec = 0;
- ev.time.tv_usec = 0;
- ev.type = EV_FF;
- ev.code = device->ffEffectId;
- ev.value = 0;
- if (write(device->fd, &ev, sizeof(ev)) != sizeof(ev)) {
- ALOGW("Could not stop force feedback effect on device %s due to error %d.",
- device->identifier.name.string(), errno);
- return;
- }
- }
- }
-}
-
-EventHub::Device* EventHub::getDeviceLocked(int32_t deviceId) const {
- if (deviceId == BUILT_IN_KEYBOARD_ID) {
- deviceId = mBuiltInKeyboardId;
- }
- ssize_t index = mDevices.indexOfKey(deviceId);
- return index >= 0 ? mDevices.valueAt(index) : NULL;
-}
-
-EventHub::Device* EventHub::getDeviceByPathLocked(const char* devicePath) const {
- for (size_t i = 0; i < mDevices.size(); i++) {
- Device* device = mDevices.valueAt(i);
- if (device->path == devicePath) {
- return device;
- }
- }
- return NULL;
-}
-
-size_t EventHub::getEvents(int timeoutMillis, RawEvent* buffer, size_t bufferSize) {
- ALOG_ASSERT(bufferSize >= 1);
-
- AutoMutex _l(mLock);
-
- struct input_event readBuffer[bufferSize];
-
- RawEvent* event = buffer;
- size_t capacity = bufferSize;
- bool awoken = false;
- for (;;) {
- nsecs_t now = systemTime(SYSTEM_TIME_MONOTONIC);
-
- // Reopen input devices if needed.
- if (mNeedToReopenDevices) {
- mNeedToReopenDevices = false;
-
- ALOGI("Reopening all input devices due to a configuration change.");
-
- closeAllDevicesLocked();
- mNeedToScanDevices = true;
- break; // return to the caller before we actually rescan
- }
-
- // Report any devices that had last been added/removed.
- while (mClosingDevices) {
- Device* device = mClosingDevices;
- ALOGV("Reporting device closed: id=%d, name=%s\n",
- device->id, device->path.string());
- mClosingDevices = device->next;
- event->when = now;
- event->deviceId = device->id == mBuiltInKeyboardId ? BUILT_IN_KEYBOARD_ID : device->id;
- event->type = DEVICE_REMOVED;
- event += 1;
- delete device;
- mNeedToSendFinishedDeviceScan = true;
- if (--capacity == 0) {
- break;
- }
- }
-
- if (mNeedToScanDevices) {
- mNeedToScanDevices = false;
- scanDevicesLocked();
- mNeedToSendFinishedDeviceScan = true;
- }
-
- while (mOpeningDevices != NULL) {
- Device* device = mOpeningDevices;
- ALOGV("Reporting device opened: id=%d, name=%s\n",
- device->id, device->path.string());
- mOpeningDevices = device->next;
- event->when = now;
- event->deviceId = device->id == mBuiltInKeyboardId ? 0 : device->id;
- event->type = DEVICE_ADDED;
- event += 1;
- mNeedToSendFinishedDeviceScan = true;
- if (--capacity == 0) {
- break;
- }
- }
-
- if (mNeedToSendFinishedDeviceScan) {
- mNeedToSendFinishedDeviceScan = false;
- event->when = now;
- event->type = FINISHED_DEVICE_SCAN;
- event += 1;
- if (--capacity == 0) {
- break;
- }
- }
-
- // Grab the next input event.
- bool deviceChanged = false;
- while (mPendingEventIndex < mPendingEventCount) {
- const struct epoll_event& eventItem = mPendingEventItems[mPendingEventIndex++];
- if (eventItem.data.u32 == EPOLL_ID_INOTIFY) {
- if (eventItem.events & EPOLLIN) {
- mPendingINotify = true;
- } else {
- ALOGW("Received unexpected epoll event 0x%08x for INotify.", eventItem.events);
- }
- continue;
- }
-
- if (eventItem.data.u32 == EPOLL_ID_WAKE) {
- if (eventItem.events & EPOLLIN) {
- ALOGV("awoken after wake()");
- awoken = true;
- char buffer[16];
- ssize_t nRead;
- do {
- nRead = read(mWakeReadPipeFd, buffer, sizeof(buffer));
- } while ((nRead == -1 && errno == EINTR) || nRead == sizeof(buffer));
- } else {
- ALOGW("Received unexpected epoll event 0x%08x for wake read pipe.",
- eventItem.events);
- }
- continue;
- }
-
- ssize_t deviceIndex = mDevices.indexOfKey(eventItem.data.u32);
- if (deviceIndex < 0) {
- ALOGW("Received unexpected epoll event 0x%08x for unknown device id %d.",
- eventItem.events, eventItem.data.u32);
- continue;
- }
-
- Device* device = mDevices.valueAt(deviceIndex);
- if (eventItem.events & EPOLLIN) {
- int32_t readSize = read(device->fd, readBuffer,
- sizeof(struct input_event) * capacity);
- if (readSize == 0 || (readSize < 0 && errno == ENODEV)) {
- // Device was removed before INotify noticed.
- ALOGW("could not get event, removed? (fd: %d size: %d bufferSize: %d "
- "capacity: %d errno: %d)\n",
- device->fd, readSize, bufferSize, capacity, errno);
- deviceChanged = true;
- closeDeviceLocked(device);
- } else if (readSize < 0) {
- if (errno != EAGAIN && errno != EINTR) {
- ALOGW("could not get event (errno=%d)", errno);
- }
- } else if ((readSize % sizeof(struct input_event)) != 0) {
- ALOGE("could not get event (wrong size: %d)", readSize);
- } else {
- int32_t deviceId = device->id == mBuiltInKeyboardId ? 0 : device->id;
-
- size_t count = size_t(readSize) / sizeof(struct input_event);
- for (size_t i = 0; i < count; i++) {
- struct input_event& iev = readBuffer[i];
- ALOGV("%s got: time=%d.%06d, type=%d, code=%d, value=%d",
- device->path.string(),
- (int) iev.time.tv_sec, (int) iev.time.tv_usec,
- iev.type, iev.code, iev.value);
-
- // Some input devices may have a better concept of the time
- // when an input event was actually generated than the kernel
- // which simply timestamps all events on entry to evdev.
- // This is a custom Android extension of the input protocol
- // mainly intended for use with uinput based device drivers.
- if (iev.type == EV_MSC) {
- if (iev.code == MSC_ANDROID_TIME_SEC) {
- device->timestampOverrideSec = iev.value;
- continue;
- } else if (iev.code == MSC_ANDROID_TIME_USEC) {
- device->timestampOverrideUsec = iev.value;
- continue;
- }
- }
- if (device->timestampOverrideSec || device->timestampOverrideUsec) {
- iev.time.tv_sec = device->timestampOverrideSec;
- iev.time.tv_usec = device->timestampOverrideUsec;
- if (iev.type == EV_SYN && iev.code == SYN_REPORT) {
- device->timestampOverrideSec = 0;
- device->timestampOverrideUsec = 0;
- }
- ALOGV("applied override time %d.%06d",
- int(iev.time.tv_sec), int(iev.time.tv_usec));
- }
-
-#ifdef HAVE_POSIX_CLOCKS
- // Use the time specified in the event instead of the current time
- // so that downstream code can get more accurate estimates of
- // event dispatch latency from the time the event is enqueued onto
- // the evdev client buffer.
- //
- // The event's timestamp fortuitously uses the same monotonic clock
- // time base as the rest of Android. The kernel event device driver
- // (drivers/input/evdev.c) obtains timestamps using ktime_get_ts().
- // The systemTime(SYSTEM_TIME_MONOTONIC) function we use everywhere
- // calls clock_gettime(CLOCK_MONOTONIC) which is implemented as a
- // system call that also queries ktime_get_ts().
- event->when = nsecs_t(iev.time.tv_sec) * 1000000000LL
- + nsecs_t(iev.time.tv_usec) * 1000LL;
- ALOGV("event time %lld, now %lld", event->when, now);
-
- // Bug 7291243: Add a guard in case the kernel generates timestamps
- // that appear to be far into the future because they were generated
- // using the wrong clock source.
- //
- // This can happen because when the input device is initially opened
- // it has a default clock source of CLOCK_REALTIME. Any input events
- // enqueued right after the device is opened will have timestamps
- // generated using CLOCK_REALTIME. We later set the clock source
- // to CLOCK_MONOTONIC but it is already too late.
- //
- // Invalid input event timestamps can result in ANRs, crashes and
- // and other issues that are hard to track down. We must not let them
- // propagate through the system.
- //
- // Log a warning so that we notice the problem and recover gracefully.
- if (event->when >= now + 10 * 1000000000LL) {
- // Double-check. Time may have moved on.
- nsecs_t time = systemTime(SYSTEM_TIME_MONOTONIC);
- if (event->when > time) {
- ALOGW("An input event from %s has a timestamp that appears to "
- "have been generated using the wrong clock source "
- "(expected CLOCK_MONOTONIC): "
- "event time %lld, current time %lld, call time %lld. "
- "Using current time instead.",
- device->path.string(), event->when, time, now);
- event->when = time;
- } else {
- ALOGV("Event time is ok but failed the fast path and required "
- "an extra call to systemTime: "
- "event time %lld, current time %lld, call time %lld.",
- event->when, time, now);
- }
- }
-#else
- event->when = now;
-#endif
- event->deviceId = deviceId;
- event->type = iev.type;
- event->code = iev.code;
- event->value = iev.value;
- event += 1;
- capacity -= 1;
- }
- if (capacity == 0) {
- // The result buffer is full. Reset the pending event index
- // so we will try to read the device again on the next iteration.
- mPendingEventIndex -= 1;
- break;
- }
- }
- } else if (eventItem.events & EPOLLHUP) {
- ALOGI("Removing device %s due to epoll hang-up event.",
- device->identifier.name.string());
- deviceChanged = true;
- closeDeviceLocked(device);
- } else {
- ALOGW("Received unexpected epoll event 0x%08x for device %s.",
- eventItem.events, device->identifier.name.string());
- }
- }
-
- // readNotify() will modify the list of devices so this must be done after
- // processing all other events to ensure that we read all remaining events
- // before closing the devices.
- if (mPendingINotify && mPendingEventIndex >= mPendingEventCount) {
- mPendingINotify = false;
- readNotifyLocked();
- deviceChanged = true;
- }
-
- // Report added or removed devices immediately.
- if (deviceChanged) {
- continue;
- }
-
- // Return now if we have collected any events or if we were explicitly awoken.
- if (event != buffer || awoken) {
- break;
- }
-
- // Poll for events. Mind the wake lock dance!
- // We hold a wake lock at all times except during epoll_wait(). This works due to some
- // subtle choreography. When a device driver has pending (unread) events, it acquires
- // a kernel wake lock. However, once the last pending event has been read, the device
- // driver will release the kernel wake lock. To prevent the system from going to sleep
- // when this happens, the EventHub holds onto its own user wake lock while the client
- // is processing events. Thus the system can only sleep if there are no events
- // pending or currently being processed.
- //
- // The timeout is advisory only. If the device is asleep, it will not wake just to
- // service the timeout.
- mPendingEventIndex = 0;
-
- mLock.unlock(); // release lock before poll, must be before release_wake_lock
- release_wake_lock(WAKE_LOCK_ID);
-
- int pollResult = epoll_wait(mEpollFd, mPendingEventItems, EPOLL_MAX_EVENTS, timeoutMillis);
-
- acquire_wake_lock(PARTIAL_WAKE_LOCK, WAKE_LOCK_ID);
- mLock.lock(); // reacquire lock after poll, must be after acquire_wake_lock
-
- if (pollResult == 0) {
- // Timed out.
- mPendingEventCount = 0;
- break;
- }
-
- if (pollResult < 0) {
- // An error occurred.
- mPendingEventCount = 0;
-
- // Sleep after errors to avoid locking up the system.
- // Hopefully the error is transient.
- if (errno != EINTR) {
- ALOGW("poll failed (errno=%d)\n", errno);
- usleep(100000);
- }
- } else {
- // Some events occurred.
- mPendingEventCount = size_t(pollResult);
- }
- }
-
- // All done, return the number of events we read.
- return event - buffer;
-}
-
-void EventHub::wake() {
- ALOGV("wake() called");
-
- ssize_t nWrite;
- do {
- nWrite = write(mWakeWritePipeFd, "W", 1);
- } while (nWrite == -1 && errno == EINTR);
-
- if (nWrite != 1 && errno != EAGAIN) {
- ALOGW("Could not write wake signal, errno=%d", errno);
- }
-}
-
-void EventHub::scanDevicesLocked() {
- status_t res = scanDirLocked(DEVICE_PATH);
- if(res < 0) {
- ALOGE("scan dir failed for %s\n", DEVICE_PATH);
- }
- if (mDevices.indexOfKey(VIRTUAL_KEYBOARD_ID) < 0) {
- createVirtualKeyboardLocked();
- }
-}
-
-// ----------------------------------------------------------------------------
-
-static bool containsNonZeroByte(const uint8_t* array, uint32_t startIndex, uint32_t endIndex) {
- const uint8_t* end = array + endIndex;
- array += startIndex;
- while (array != end) {
- if (*(array++) != 0) {
- return true;
- }
- }
- return false;
-}
-
-static const int32_t GAMEPAD_KEYCODES[] = {
- AKEYCODE_BUTTON_A, AKEYCODE_BUTTON_B, AKEYCODE_BUTTON_C,
- AKEYCODE_BUTTON_X, AKEYCODE_BUTTON_Y, AKEYCODE_BUTTON_Z,
- AKEYCODE_BUTTON_L1, AKEYCODE_BUTTON_R1,
- AKEYCODE_BUTTON_L2, AKEYCODE_BUTTON_R2,
- AKEYCODE_BUTTON_THUMBL, AKEYCODE_BUTTON_THUMBR,
- AKEYCODE_BUTTON_START, AKEYCODE_BUTTON_SELECT, AKEYCODE_BUTTON_MODE,
- AKEYCODE_BUTTON_1, AKEYCODE_BUTTON_2, AKEYCODE_BUTTON_3, AKEYCODE_BUTTON_4,
- AKEYCODE_BUTTON_5, AKEYCODE_BUTTON_6, AKEYCODE_BUTTON_7, AKEYCODE_BUTTON_8,
- AKEYCODE_BUTTON_9, AKEYCODE_BUTTON_10, AKEYCODE_BUTTON_11, AKEYCODE_BUTTON_12,
- AKEYCODE_BUTTON_13, AKEYCODE_BUTTON_14, AKEYCODE_BUTTON_15, AKEYCODE_BUTTON_16,
-};
-
-status_t EventHub::openDeviceLocked(const char *devicePath) {
- char buffer[80];
-
- ALOGV("Opening device: %s", devicePath);
-
- int fd = open(devicePath, O_RDWR | O_CLOEXEC);
- if(fd < 0) {
- ALOGE("could not open %s, %s\n", devicePath, strerror(errno));
- return -1;
- }
-
- InputDeviceIdentifier identifier;
-
- // Get device name.
- if(ioctl(fd, EVIOCGNAME(sizeof(buffer) - 1), &buffer) < 1) {
- //fprintf(stderr, "could not get device name for %s, %s\n", devicePath, strerror(errno));
- } else {
- buffer[sizeof(buffer) - 1] = '\0';
- identifier.name.setTo(buffer);
- }
-
- // Check to see if the device is on our excluded list
- for (size_t i = 0; i < mExcludedDevices.size(); i++) {
- const String8& item = mExcludedDevices.itemAt(i);
- if (identifier.name == item) {
- ALOGI("ignoring event id %s driver %s\n", devicePath, item.string());
- close(fd);
- return -1;
- }
- }
-
- // Get device driver version.
- int driverVersion;
- if(ioctl(fd, EVIOCGVERSION, &driverVersion)) {
- ALOGE("could not get driver version for %s, %s\n", devicePath, strerror(errno));
- close(fd);
- return -1;
- }
-
- // Get device identifier.
- struct input_id inputId;
- if(ioctl(fd, EVIOCGID, &inputId)) {
- ALOGE("could not get device input id for %s, %s\n", devicePath, strerror(errno));
- close(fd);
- return -1;
- }
- identifier.bus = inputId.bustype;
- identifier.product = inputId.product;
- identifier.vendor = inputId.vendor;
- identifier.version = inputId.version;
-
- // Get device physical location.
- if(ioctl(fd, EVIOCGPHYS(sizeof(buffer) - 1), &buffer) < 1) {
- //fprintf(stderr, "could not get location for %s, %s\n", devicePath, strerror(errno));
- } else {
- buffer[sizeof(buffer) - 1] = '\0';
- identifier.location.setTo(buffer);
- }
-
- // Get device unique id.
- if(ioctl(fd, EVIOCGUNIQ(sizeof(buffer) - 1), &buffer) < 1) {
- //fprintf(stderr, "could not get idstring for %s, %s\n", devicePath, strerror(errno));
- } else {
- buffer[sizeof(buffer) - 1] = '\0';
- identifier.uniqueId.setTo(buffer);
- }
-
- // Fill in the descriptor.
- setDescriptor(identifier);
-
- // Make file descriptor non-blocking for use with poll().
- if (fcntl(fd, F_SETFL, O_NONBLOCK)) {
- ALOGE("Error %d making device file descriptor non-blocking.", errno);
- close(fd);
- return -1;
- }
-
- // Allocate device. (The device object takes ownership of the fd at this point.)
- int32_t deviceId = mNextDeviceId++;
- Device* device = new Device(fd, deviceId, String8(devicePath), identifier);
-
- ALOGV("add device %d: %s\n", deviceId, devicePath);
- ALOGV(" bus: %04x\n"
- " vendor %04x\n"
- " product %04x\n"
- " version %04x\n",
- identifier.bus, identifier.vendor, identifier.product, identifier.version);
- ALOGV(" name: \"%s\"\n", identifier.name.string());
- ALOGV(" location: \"%s\"\n", identifier.location.string());
- ALOGV(" unique id: \"%s\"\n", identifier.uniqueId.string());
- ALOGV(" descriptor: \"%s\"\n", identifier.descriptor.string());
- ALOGV(" driver: v%d.%d.%d\n",
- driverVersion >> 16, (driverVersion >> 8) & 0xff, driverVersion & 0xff);
-
- // Load the configuration file for the device.
- loadConfigurationLocked(device);
-
- // Figure out the kinds of events the device reports.
- ioctl(fd, EVIOCGBIT(EV_KEY, sizeof(device->keyBitmask)), device->keyBitmask);
- ioctl(fd, EVIOCGBIT(EV_ABS, sizeof(device->absBitmask)), device->absBitmask);
- ioctl(fd, EVIOCGBIT(EV_REL, sizeof(device->relBitmask)), device->relBitmask);
- ioctl(fd, EVIOCGBIT(EV_SW, sizeof(device->swBitmask)), device->swBitmask);
- ioctl(fd, EVIOCGBIT(EV_LED, sizeof(device->ledBitmask)), device->ledBitmask);
- ioctl(fd, EVIOCGBIT(EV_FF, sizeof(device->ffBitmask)), device->ffBitmask);
- ioctl(fd, EVIOCGPROP(sizeof(device->propBitmask)), device->propBitmask);
-
- // See if this is a keyboard. Ignore everything in the button range except for
- // joystick and gamepad buttons which are handled like keyboards for the most part.
- bool haveKeyboardKeys = containsNonZeroByte(device->keyBitmask, 0, sizeof_bit_array(BTN_MISC))
- || containsNonZeroByte(device->keyBitmask, sizeof_bit_array(KEY_OK),
- sizeof_bit_array(KEY_MAX + 1));
- bool haveGamepadButtons = containsNonZeroByte(device->keyBitmask, sizeof_bit_array(BTN_MISC),
- sizeof_bit_array(BTN_MOUSE))
- || containsNonZeroByte(device->keyBitmask, sizeof_bit_array(BTN_JOYSTICK),
- sizeof_bit_array(BTN_DIGI));
- if (haveKeyboardKeys || haveGamepadButtons) {
- device->classes |= INPUT_DEVICE_CLASS_KEYBOARD;
- }
-
- // See if this is a cursor device such as a trackball or mouse.
- if (test_bit(BTN_MOUSE, device->keyBitmask)
- && test_bit(REL_X, device->relBitmask)
- && test_bit(REL_Y, device->relBitmask)) {
- device->classes |= INPUT_DEVICE_CLASS_CURSOR;
- }
-
- // See if this is a touch pad.
- // Is this a new modern multi-touch driver?
- if (test_bit(ABS_MT_POSITION_X, device->absBitmask)
- && test_bit(ABS_MT_POSITION_Y, device->absBitmask)) {
- // Some joysticks such as the PS3 controller report axes that conflict
- // with the ABS_MT range. Try to confirm that the device really is
- // a touch screen.
- if (test_bit(BTN_TOUCH, device->keyBitmask) || !haveGamepadButtons) {
- device->classes |= INPUT_DEVICE_CLASS_TOUCH | INPUT_DEVICE_CLASS_TOUCH_MT;
- }
- // Is this an old style single-touch driver?
- } else if (test_bit(BTN_TOUCH, device->keyBitmask)
- && test_bit(ABS_X, device->absBitmask)
- && test_bit(ABS_Y, device->absBitmask)) {
- device->classes |= INPUT_DEVICE_CLASS_TOUCH;
- }
-
- // See if this device is a joystick.
- // Assumes that joysticks always have gamepad buttons in order to distinguish them
- // from other devices such as accelerometers that also have absolute axes.
- if (haveGamepadButtons) {
- uint32_t assumedClasses = device->classes | INPUT_DEVICE_CLASS_JOYSTICK;
- for (int i = 0; i <= ABS_MAX; i++) {
- if (test_bit(i, device->absBitmask)
- && (getAbsAxisUsage(i, assumedClasses) & INPUT_DEVICE_CLASS_JOYSTICK)) {
- device->classes = assumedClasses;
- break;
- }
- }
- }
-
- // Check whether this device has switches.
- for (int i = 0; i <= SW_MAX; i++) {
- if (test_bit(i, device->swBitmask)) {
- device->classes |= INPUT_DEVICE_CLASS_SWITCH;
- break;
- }
- }
-
- // Check whether this device supports the vibrator.
- if (test_bit(FF_RUMBLE, device->ffBitmask)) {
- device->classes |= INPUT_DEVICE_CLASS_VIBRATOR;
- }
-
- // Configure virtual keys.
- if ((device->classes & INPUT_DEVICE_CLASS_TOUCH)) {
- // Load the virtual keys for the touch screen, if any.
- // We do this now so that we can make sure to load the keymap if necessary.
- status_t status = loadVirtualKeyMapLocked(device);
- if (!status) {
- device->classes |= INPUT_DEVICE_CLASS_KEYBOARD;
- }
- }
-
- // Load the key map.
- // We need to do this for joysticks too because the key layout may specify axes.
- status_t keyMapStatus = NAME_NOT_FOUND;
- if (device->classes & (INPUT_DEVICE_CLASS_KEYBOARD | INPUT_DEVICE_CLASS_JOYSTICK)) {
- // Load the keymap for the device.
- keyMapStatus = loadKeyMapLocked(device);
- }
-
- // Configure the keyboard, gamepad or virtual keyboard.
- if (device->classes & INPUT_DEVICE_CLASS_KEYBOARD) {
- // Register the keyboard as a built-in keyboard if it is eligible.
- if (!keyMapStatus
- && mBuiltInKeyboardId == NO_BUILT_IN_KEYBOARD
- && isEligibleBuiltInKeyboard(device->identifier,
- device->configuration, &device->keyMap)) {
- mBuiltInKeyboardId = device->id;
- }
-
- // 'Q' key support = cheap test of whether this is an alpha-capable kbd
- if (hasKeycodeLocked(device, AKEYCODE_Q)) {
- device->classes |= INPUT_DEVICE_CLASS_ALPHAKEY;
- }
-
- // See if this device has a DPAD.
- if (hasKeycodeLocked(device, AKEYCODE_DPAD_UP) &&
- hasKeycodeLocked(device, AKEYCODE_DPAD_DOWN) &&
- hasKeycodeLocked(device, AKEYCODE_DPAD_LEFT) &&
- hasKeycodeLocked(device, AKEYCODE_DPAD_RIGHT) &&
- hasKeycodeLocked(device, AKEYCODE_DPAD_CENTER)) {
- device->classes |= INPUT_DEVICE_CLASS_DPAD;
- }
-
- // See if this device has a gamepad.
- for (size_t i = 0; i < sizeof(GAMEPAD_KEYCODES)/sizeof(GAMEPAD_KEYCODES[0]); i++) {
- if (hasKeycodeLocked(device, GAMEPAD_KEYCODES[i])) {
- device->classes |= INPUT_DEVICE_CLASS_GAMEPAD;
- break;
- }
- }
-
- // Disable kernel key repeat since we handle it ourselves
- unsigned int repeatRate[] = {0,0};
- if (ioctl(fd, EVIOCSREP, repeatRate)) {
- ALOGW("Unable to disable kernel key repeat for %s: %s", devicePath, strerror(errno));
- }
- }
-
- // If the device isn't recognized as something we handle, don't monitor it.
- if (device->classes == 0) {
- ALOGV("Dropping device: id=%d, path='%s', name='%s'",
- deviceId, devicePath, device->identifier.name.string());
- delete device;
- return -1;
- }
-
- // Determine whether the device is external or internal.
- if (isExternalDeviceLocked(device)) {
- device->classes |= INPUT_DEVICE_CLASS_EXTERNAL;
- }
-
- // Register with epoll.
- struct epoll_event eventItem;
- memset(&eventItem, 0, sizeof(eventItem));
- eventItem.events = EPOLLIN;
- eventItem.data.u32 = deviceId;
- if (epoll_ctl(mEpollFd, EPOLL_CTL_ADD, fd, &eventItem)) {
- ALOGE("Could not add device fd to epoll instance. errno=%d", errno);
- delete device;
- return -1;
- }
-
- // Enable wake-lock behavior on kernels that support it.
- // TODO: Only need this for devices that can really wake the system.
- bool usingSuspendBlockIoctl = !ioctl(fd, EVIOCSSUSPENDBLOCK, 1);
-
- // Tell the kernel that we want to use the monotonic clock for reporting timestamps
- // associated with input events. This is important because the input system
- // uses the timestamps extensively and assumes they were recorded using the monotonic
- // clock.
- //
- // In older kernel, before Linux 3.4, there was no way to tell the kernel which
- // clock to use to input event timestamps. The standard kernel behavior was to
- // record a real time timestamp, which isn't what we want. Android kernels therefore
- // contained a patch to the evdev_event() function in drivers/input/evdev.c to
- // replace the call to do_gettimeofday() with ktime_get_ts() to cause the monotonic
- // clock to be used instead of the real time clock.
- //
- // As of Linux 3.4, there is a new EVIOCSCLOCKID ioctl to set the desired clock.
- // Therefore, we no longer require the Android-specific kernel patch described above
- // as long as we make sure to set select the monotonic clock. We do that here.
- int clockId = CLOCK_MONOTONIC;
- bool usingClockIoctl = !ioctl(fd, EVIOCSCLOCKID, &clockId);
-
- ALOGI("New device: id=%d, fd=%d, path='%s', name='%s', classes=0x%x, "
- "configuration='%s', keyLayout='%s', keyCharacterMap='%s', builtinKeyboard=%s, "
- "usingSuspendBlockIoctl=%s, usingClockIoctl=%s",
- deviceId, fd, devicePath, device->identifier.name.string(),
- device->classes,
- device->configurationFile.string(),
- device->keyMap.keyLayoutFile.string(),
- device->keyMap.keyCharacterMapFile.string(),
- toString(mBuiltInKeyboardId == deviceId),
- toString(usingSuspendBlockIoctl), toString(usingClockIoctl));
-
- addDeviceLocked(device);
- return 0;
-}
-
-void EventHub::createVirtualKeyboardLocked() {
- InputDeviceIdentifier identifier;
- identifier.name = "Virtual";
- identifier.uniqueId = "<virtual>";
- setDescriptor(identifier);
-
- Device* device = new Device(-1, VIRTUAL_KEYBOARD_ID, String8("<virtual>"), identifier);
- device->classes = INPUT_DEVICE_CLASS_KEYBOARD
- | INPUT_DEVICE_CLASS_ALPHAKEY
- | INPUT_DEVICE_CLASS_DPAD
- | INPUT_DEVICE_CLASS_VIRTUAL;
- loadKeyMapLocked(device);
- addDeviceLocked(device);
-}
-
-void EventHub::addDeviceLocked(Device* device) {
- mDevices.add(device->id, device);
- device->next = mOpeningDevices;
- mOpeningDevices = device;
-}
-
-void EventHub::loadConfigurationLocked(Device* device) {
- device->configurationFile = getInputDeviceConfigurationFilePathByDeviceIdentifier(
- device->identifier, INPUT_DEVICE_CONFIGURATION_FILE_TYPE_CONFIGURATION);
- if (device->configurationFile.isEmpty()) {
- ALOGD("No input device configuration file found for device '%s'.",
- device->identifier.name.string());
- } else {
- status_t status = PropertyMap::load(device->configurationFile,
- &device->configuration);
- if (status) {
- ALOGE("Error loading input device configuration file for device '%s'. "
- "Using default configuration.",
- device->identifier.name.string());
- }
- }
-}
-
-status_t EventHub::loadVirtualKeyMapLocked(Device* device) {
- // The virtual key map is supplied by the kernel as a system board property file.
- String8 path;
- path.append("/sys/board_properties/virtualkeys.");
- path.append(device->identifier.name);
- if (access(path.string(), R_OK)) {
- return NAME_NOT_FOUND;
- }
- return VirtualKeyMap::load(path, &device->virtualKeyMap);
-}
-
-status_t EventHub::loadKeyMapLocked(Device* device) {
- return device->keyMap.load(device->identifier, device->configuration);
-}
-
-bool EventHub::isExternalDeviceLocked(Device* device) {
- if (device->configuration) {
- bool value;
- if (device->configuration->tryGetProperty(String8("device.internal"), value)) {
- return !value;
- }
- }
- return device->identifier.bus == BUS_USB || device->identifier.bus == BUS_BLUETOOTH;
-}
-
-bool EventHub::hasKeycodeLocked(Device* device, int keycode) const {
- if (!device->keyMap.haveKeyLayout() || !device->keyBitmask) {
- return false;
- }
-
- Vector<int32_t> scanCodes;
- device->keyMap.keyLayoutMap->findScanCodesForKey(keycode, &scanCodes);
- const size_t N = scanCodes.size();
- for (size_t i=0; i<N && i<=KEY_MAX; i++) {
- int32_t sc = scanCodes.itemAt(i);
- if (sc >= 0 && sc <= KEY_MAX && test_bit(sc, device->keyBitmask)) {
- return true;
- }
- }
-
- return false;
-}
-
-status_t EventHub::closeDeviceByPathLocked(const char *devicePath) {
- Device* device = getDeviceByPathLocked(devicePath);
- if (device) {
- closeDeviceLocked(device);
- return 0;
- }
- ALOGV("Remove device: %s not found, device may already have been removed.", devicePath);
- return -1;
-}
-
-void EventHub::closeAllDevicesLocked() {
- while (mDevices.size() > 0) {
- closeDeviceLocked(mDevices.valueAt(mDevices.size() - 1));
- }
-}
-
-void EventHub::closeDeviceLocked(Device* device) {
- ALOGI("Removed device: path=%s name=%s id=%d fd=%d classes=0x%x\n",
- device->path.string(), device->identifier.name.string(), device->id,
- device->fd, device->classes);
-
- if (device->id == mBuiltInKeyboardId) {
- ALOGW("built-in keyboard device %s (id=%d) is closing! the apps will not like this",
- device->path.string(), mBuiltInKeyboardId);
- mBuiltInKeyboardId = NO_BUILT_IN_KEYBOARD;
- }
-
- if (!device->isVirtual()) {
- if (epoll_ctl(mEpollFd, EPOLL_CTL_DEL, device->fd, NULL)) {
- ALOGW("Could not remove device fd from epoll instance. errno=%d", errno);
- }
- }
-
- mDevices.removeItem(device->id);
- device->close();
-
- // Unlink for opening devices list if it is present.
- Device* pred = NULL;
- bool found = false;
- for (Device* entry = mOpeningDevices; entry != NULL; ) {
- if (entry == device) {
- found = true;
- break;
- }
- pred = entry;
- entry = entry->next;
- }
- if (found) {
- // Unlink the device from the opening devices list then delete it.
- // We don't need to tell the client that the device was closed because
- // it does not even know it was opened in the first place.
- ALOGI("Device %s was immediately closed after opening.", device->path.string());
- if (pred) {
- pred->next = device->next;
- } else {
- mOpeningDevices = device->next;
- }
- delete device;
- } else {
- // Link into closing devices list.
- // The device will be deleted later after we have informed the client.
- device->next = mClosingDevices;
- mClosingDevices = device;
- }
-}
-
-status_t EventHub::readNotifyLocked() {
- int res;
- char devname[PATH_MAX];
- char *filename;
- char event_buf[512];
- int event_size;
- int event_pos = 0;
- struct inotify_event *event;
-
- ALOGV("EventHub::readNotify nfd: %d\n", mINotifyFd);
- res = read(mINotifyFd, event_buf, sizeof(event_buf));
- if(res < (int)sizeof(*event)) {
- if(errno == EINTR)
- return 0;
- ALOGW("could not get event, %s\n", strerror(errno));
- return -1;
- }
- //printf("got %d bytes of event information\n", res);
-
- strcpy(devname, DEVICE_PATH);
- filename = devname + strlen(devname);
- *filename++ = '/';
-
- while(res >= (int)sizeof(*event)) {
- event = (struct inotify_event *)(event_buf + event_pos);
- //printf("%d: %08x \"%s\"\n", event->wd, event->mask, event->len ? event->name : "");
- if(event->len) {
- strcpy(filename, event->name);
- if(event->mask & IN_CREATE) {
- openDeviceLocked(devname);
- } else {
- ALOGI("Removing device '%s' due to inotify event\n", devname);
- closeDeviceByPathLocked(devname);
- }
- }
- event_size = sizeof(*event) + event->len;
- res -= event_size;
- event_pos += event_size;
- }
- return 0;
-}
-
-status_t EventHub::scanDirLocked(const char *dirname)
-{
- char devname[PATH_MAX];
- char *filename;
- DIR *dir;
- struct dirent *de;
- dir = opendir(dirname);
- if(dir == NULL)
- return -1;
- strcpy(devname, dirname);
- filename = devname + strlen(devname);
- *filename++ = '/';
- while((de = readdir(dir))) {
- if(de->d_name[0] == '.' &&
- (de->d_name[1] == '\0' ||
- (de->d_name[1] == '.' && de->d_name[2] == '\0')))
- continue;
- strcpy(filename, de->d_name);
- openDeviceLocked(devname);
- }
- closedir(dir);
- return 0;
-}
-
-void EventHub::requestReopenDevices() {
- ALOGV("requestReopenDevices() called");
-
- AutoMutex _l(mLock);
- mNeedToReopenDevices = true;
-}
-
-void EventHub::dump(String8& dump) {
- dump.append("Event Hub State:\n");
-
- { // acquire lock
- AutoMutex _l(mLock);
-
- dump.appendFormat(INDENT "BuiltInKeyboardId: %d\n", mBuiltInKeyboardId);
-
- dump.append(INDENT "Devices:\n");
-
- for (size_t i = 0; i < mDevices.size(); i++) {
- const Device* device = mDevices.valueAt(i);
- if (mBuiltInKeyboardId == device->id) {
- dump.appendFormat(INDENT2 "%d: %s (aka device 0 - built-in keyboard)\n",
- device->id, device->identifier.name.string());
- } else {
- dump.appendFormat(INDENT2 "%d: %s\n", device->id,
- device->identifier.name.string());
- }
- dump.appendFormat(INDENT3 "Classes: 0x%08x\n", device->classes);
- dump.appendFormat(INDENT3 "Path: %s\n", device->path.string());
- dump.appendFormat(INDENT3 "Descriptor: %s\n", device->identifier.descriptor.string());
- dump.appendFormat(INDENT3 "Location: %s\n", device->identifier.location.string());
- dump.appendFormat(INDENT3 "UniqueId: %s\n", device->identifier.uniqueId.string());
- dump.appendFormat(INDENT3 "Identifier: bus=0x%04x, vendor=0x%04x, "
- "product=0x%04x, version=0x%04x\n",
- device->identifier.bus, device->identifier.vendor,
- device->identifier.product, device->identifier.version);
- dump.appendFormat(INDENT3 "KeyLayoutFile: %s\n",
- device->keyMap.keyLayoutFile.string());
- dump.appendFormat(INDENT3 "KeyCharacterMapFile: %s\n",
- device->keyMap.keyCharacterMapFile.string());
- dump.appendFormat(INDENT3 "ConfigurationFile: %s\n",
- device->configurationFile.string());
- dump.appendFormat(INDENT3 "HaveKeyboardLayoutOverlay: %s\n",
- toString(device->overlayKeyMap != NULL));
- }
- } // release lock
-}
-
-void EventHub::monitor() {
- // Acquire and release the lock to ensure that the event hub has not deadlocked.
- mLock.lock();
- mLock.unlock();
-}
-
-
-}; // namespace android
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-10 11:02:34 +0000