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Diffstat (limited to 'libs/ui/EventHub.cpp')
| -rw-r--r-- | libs/ui/EventHub.cpp | 1092 |
1 files changed, 0 insertions, 1092 deletions
diff --git a/libs/ui/EventHub.cpp b/libs/ui/EventHub.cpp deleted file mode 100644 index 4e9fad0f2c..0000000000 --- a/libs/ui/EventHub.cpp +++ /dev/null @@ -1,1092 +0,0 @@ -// -// Copyright 2005 The Android Open Source Project -// -// Handle events, like key input and vsync. -// -// The goal is to provide an optimized solution for Linux, not an -// implementation that works well across all platforms. We expect -// events to arrive on file descriptors, so that we can use a select() -// select() call to sleep. -// -// We can't select() on anything but network sockets in Windows, so we -// provide an alternative implementation of waitEvent for that platform. -// -#define LOG_TAG "EventHub" - -//#define LOG_NDEBUG 0 - -#include <ui/EventHub.h> -#include <hardware_legacy/power.h> - -#include <cutils/properties.h> -#include <utils/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 <ui/KeyLayoutMap.h> -#include <ui/KeyCharacterMap.h> -#include <ui/VirtualKeyMap.h> - -#include <string.h> -#include <stdint.h> -#include <dirent.h> -#ifdef HAVE_INOTIFY -# include <sys/inotify.h> -#endif -#ifdef HAVE_ANDROID_OS -# include <sys/limits.h> /* not part of Linux */ -#endif -#include <sys/poll.h> -#include <sys/ioctl.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) - -#ifndef ABS_MT_TOUCH_MAJOR -#define ABS_MT_TOUCH_MAJOR 0x30 /* Major axis of touching ellipse */ -#endif - -#ifndef ABS_MT_POSITION_X -#define ABS_MT_POSITION_X 0x35 /* Center X ellipse position */ -#endif - -#ifndef ABS_MT_POSITION_Y -#define ABS_MT_POSITION_Y 0x36 /* Center Y ellipse position */ -#endif - -// Fd at index 0 is always reserved for inotify -#define FIRST_ACTUAL_DEVICE_INDEX 1 - -#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"; -} - -// --- 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), keyBitmask(NULL), configuration(NULL), virtualKeyMap(NULL) { -} - -EventHub::Device::~Device() { - close(); - delete[] keyBitmask; - delete configuration; - delete virtualKeyMap; -} - -void EventHub::Device::close() { - if (fd >= 0) { - ::close(fd); - fd = -1; - } -} - - -// --- EventHub --- - -EventHub::EventHub(void) : - mError(NO_INIT), mBuiltInKeyboardId(-1), mNextDeviceId(1), - mOpeningDevices(0), mClosingDevices(0), - mOpened(false), mNeedToSendFinishedDeviceScan(false), - mInputBufferIndex(0), mInputBufferCount(0), mInputFdIndex(0) { - acquire_wake_lock(PARTIAL_WAKE_LOCK, WAKE_LOCK_ID); -#ifdef EV_SW - memset(mSwitches, 0, sizeof(mSwitches)); -#endif -} - -EventHub::~EventHub(void) { - release_wake_lock(WAKE_LOCK_ID); - // we should free stuff here... -} - -status_t EventHub::errorCheck() const { - return mError; -} - -String8 EventHub::getDeviceName(int32_t deviceId) const { - AutoMutex _l(mLock); - Device* device = getDeviceLocked(deviceId); - if (device == NULL) return String8(); - return device->identifier.name; -} - -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(); - - AutoMutex _l(mLock); - Device* device = getDeviceLocked(deviceId); - if (device == NULL) return -1; - - struct input_absinfo info; - - if(ioctl(device->fd, EVIOCGABS(axis), &info)) { - LOGW("Error reading absolute controller %d for device %s fd %d\n", - axis, device->identifier.name.string(), device->fd); - 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; - } - return OK; -} - -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 != NULL) { - return getScanCodeStateLocked(device, scanCode); - } - } - return AKEY_STATE_UNKNOWN; -} - -int32_t EventHub::getScanCodeStateLocked(Device* device, int32_t scanCode) const { - uint8_t key_bitmask[sizeof_bit_array(KEY_MAX + 1)]; - memset(key_bitmask, 0, sizeof(key_bitmask)); - if (ioctl(device->fd, - EVIOCGKEY(sizeof(key_bitmask)), key_bitmask) >= 0) { - return test_bit(scanCode, key_bitmask) ? 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 != NULL) { - return getKeyCodeStateLocked(device, keyCode); - } - return AKEY_STATE_UNKNOWN; -} - -int32_t EventHub::getKeyCodeStateLocked(Device* device, int32_t keyCode) const { - if (!device->keyMap.haveKeyLayout()) { - return AKEY_STATE_UNKNOWN; - } - - Vector<int32_t> scanCodes; - device->keyMap.keyLayoutMap->findScanCodes(keyCode, &scanCodes); - - uint8_t key_bitmask[sizeof_bit_array(KEY_MAX + 1)]; - memset(key_bitmask, 0, sizeof(key_bitmask)); - if (ioctl(device->fd, EVIOCGKEY(sizeof(key_bitmask)), key_bitmask) >= 0) { - #if 0 - for (size_t i=0; i<=KEY_MAX; i++) { - LOGI("(Scan code %d: down=%d)", i, test_bit(i, key_bitmask)); - } - #endif - const size_t N = scanCodes.size(); - for (size_t i=0; i<N && i<=KEY_MAX; i++) { - int32_t sc = scanCodes.itemAt(i); - //LOGI("Code %d: down=%d", sc, test_bit(sc, key_bitmask)); - if (sc >= 0 && sc <= KEY_MAX && test_bit(sc, key_bitmask)) { - return AKEY_STATE_DOWN; - } - } - return AKEY_STATE_UP; - } - return AKEY_STATE_UNKNOWN; -} - -int32_t EventHub::getSwitchState(int32_t deviceId, int32_t sw) const { -#ifdef EV_SW - if (sw >= 0 && sw <= SW_MAX) { - AutoMutex _l(mLock); - - Device* device = getDeviceLocked(deviceId); - if (device != NULL) { - return getSwitchStateLocked(device, sw); - } - } -#endif - return AKEY_STATE_UNKNOWN; -} - -int32_t EventHub::getSwitchStateLocked(Device* device, int32_t sw) const { - uint8_t sw_bitmask[sizeof_bit_array(SW_MAX + 1)]; - memset(sw_bitmask, 0, sizeof(sw_bitmask)); - if (ioctl(device->fd, - EVIOCGSW(sizeof(sw_bitmask)), sw_bitmask) >= 0) { - return test_bit(sw, sw_bitmask) ? AKEY_STATE_DOWN : AKEY_STATE_UP; - } - return AKEY_STATE_UNKNOWN; -} - -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 != NULL) { - return markSupportedKeyCodesLocked(device, numCodes, keyCodes, outFlags); - } - return false; -} - -bool EventHub::markSupportedKeyCodesLocked(Device* device, size_t numCodes, - const int32_t* keyCodes, uint8_t* outFlags) const { - if (!device->keyMap.haveKeyLayout() || !device->keyBitmask) { - return false; - } - - Vector<int32_t> scanCodes; - for (size_t codeIndex = 0; codeIndex < numCodes; codeIndex++) { - scanCodes.clear(); - - status_t err = device->keyMap.keyLayoutMap->findScanCodes(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; -} - -status_t EventHub::scancodeToKeycode(int32_t deviceId, int scancode, - int32_t* outKeycode, uint32_t* outFlags) const -{ - AutoMutex _l(mLock); - Device* device = getDeviceLocked(deviceId); - - if (device && device->keyMap.haveKeyLayout()) { - status_t err = device->keyMap.keyLayoutMap->map(scancode, outKeycode, outFlags); - if (err == NO_ERROR) { - return NO_ERROR; - } - } - - if (mBuiltInKeyboardId != -1) { - device = getDeviceLocked(mBuiltInKeyboardId); - - if (device && device->keyMap.haveKeyLayout()) { - status_t err = device->keyMap.keyLayoutMap->map(scancode, outKeycode, outFlags); - if (err == NO_ERROR) { - return NO_ERROR; - } - } - } - - *outKeycode = 0; - *outFlags = 0; - return NAME_NOT_FOUND; -} - -void EventHub::addExcludedDevice(const char* deviceName) -{ - AutoMutex _l(mLock); - - String8 name(deviceName); - mExcludedDevices.push_back(name); -} - -bool EventHub::hasLed(int32_t deviceId, int32_t led) const { - AutoMutex _l(mLock); - Device* device = getDeviceLocked(deviceId); - if (device) { - uint8_t bitmask[sizeof_bit_array(LED_MAX + 1)]; - memset(bitmask, 0, sizeof(bitmask)); - if (ioctl(device->fd, EVIOCGBIT(EV_LED, sizeof(bitmask)), bitmask) >= 0) { - if (test_bit(led, bitmask)) { - return true; - } - } - } - return false; -} - -void EventHub::setLedState(int32_t deviceId, int32_t led, bool on) { - AutoMutex _l(mLock); - Device* device = getDeviceLocked(deviceId); - if (device) { - 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()); - } -} - -EventHub::Device* EventHub::getDeviceLocked(int32_t deviceId) const { - if (deviceId == 0) { - deviceId = mBuiltInKeyboardId; - } - - size_t numDevices = mDevices.size(); - for (size_t i = FIRST_ACTUAL_DEVICE_INDEX; i < numDevices; i++) { - Device* device = mDevices[i]; - if (device->id == deviceId) { - return device; - } - } - return NULL; -} - -bool EventHub::getEvent(RawEvent* outEvent) { - outEvent->deviceId = 0; - outEvent->type = 0; - outEvent->scanCode = 0; - outEvent->keyCode = 0; - outEvent->flags = 0; - outEvent->value = 0; - outEvent->when = 0; - - // Note that we only allow one caller to getEvent(), so don't need - // to do locking here... only when adding/removing devices. - - if (!mOpened) { - mError = openPlatformInput() ? NO_ERROR : UNKNOWN_ERROR; - mOpened = true; - mNeedToSendFinishedDeviceScan = true; - } - - for (;;) { - // Report any devices that had last been added/removed. - if (mClosingDevices != NULL) { - Device* device = mClosingDevices; - LOGV("Reporting device closed: id=%d, name=%s\n", - device->id, device->path.string()); - mClosingDevices = device->next; - if (device->id == mBuiltInKeyboardId) { - outEvent->deviceId = 0; - } else { - outEvent->deviceId = device->id; - } - outEvent->type = DEVICE_REMOVED; - outEvent->when = systemTime(SYSTEM_TIME_MONOTONIC); - delete device; - mNeedToSendFinishedDeviceScan = true; - return true; - } - - if (mOpeningDevices != NULL) { - Device* device = mOpeningDevices; - LOGV("Reporting device opened: id=%d, name=%s\n", - device->id, device->path.string()); - mOpeningDevices = device->next; - if (device->id == mBuiltInKeyboardId) { - outEvent->deviceId = 0; - } else { - outEvent->deviceId = device->id; - } - outEvent->type = DEVICE_ADDED; - outEvent->when = systemTime(SYSTEM_TIME_MONOTONIC); - mNeedToSendFinishedDeviceScan = true; - return true; - } - - if (mNeedToSendFinishedDeviceScan) { - mNeedToSendFinishedDeviceScan = false; - outEvent->type = FINISHED_DEVICE_SCAN; - outEvent->when = systemTime(SYSTEM_TIME_MONOTONIC); - return true; - } - - // Grab the next input event. - for (;;) { - // Consume buffered input events, if any. - if (mInputBufferIndex < mInputBufferCount) { - const struct input_event& iev = mInputBufferData[mInputBufferIndex++]; - const Device* device = mDevices[mInputFdIndex]; - - LOGV("%s got: t0=%d, t1=%d, type=%d, code=%d, v=%d", device->path.string(), - (int) iev.time.tv_sec, (int) iev.time.tv_usec, iev.type, iev.code, iev.value); - if (device->id == mBuiltInKeyboardId) { - outEvent->deviceId = 0; - } else { - outEvent->deviceId = device->id; - } - outEvent->type = iev.type; - outEvent->scanCode = iev.code; - outEvent->flags = 0; - if (iev.type == EV_KEY) { - outEvent->keyCode = AKEYCODE_UNKNOWN; - if (device->keyMap.haveKeyLayout()) { - status_t err = device->keyMap.keyLayoutMap->map(iev.code, - &outEvent->keyCode, &outEvent->flags); - LOGV("iev.code=%d keyCode=%d flags=0x%08x err=%d\n", - iev.code, outEvent->keyCode, outEvent->flags, err); - } - } else { - outEvent->keyCode = iev.code; - } - outEvent->value = iev.value; - - // Use an event timestamp in the same timebase as - // java.lang.System.nanoTime() and android.os.SystemClock.uptimeMillis() - // as expected by the rest of the system. - outEvent->when = systemTime(SYSTEM_TIME_MONOTONIC); - return true; - } - - // Finish reading all events from devices identified in previous poll(). - // This code assumes that mInputDeviceIndex is initially 0 and that the - // revents member of pollfd is initialized to 0 when the device is first added. - // Since mFds[0] is used for inotify, we process regular events starting at index 1. - mInputFdIndex += 1; - if (mInputFdIndex >= mFds.size()) { - break; - } - - const struct pollfd& pfd = mFds[mInputFdIndex]; - if (pfd.revents & POLLIN) { - int32_t readSize = read(pfd.fd, mInputBufferData, - sizeof(struct input_event) * INPUT_BUFFER_SIZE); - if (readSize < 0) { - if (errno != EAGAIN && errno != EINTR) { - LOGW("could not get event (errno=%d)", errno); - } - } else if ((readSize % sizeof(struct input_event)) != 0) { - LOGE("could not get event (wrong size: %d)", readSize); - } else { - mInputBufferCount = size_t(readSize) / sizeof(struct input_event); - mInputBufferIndex = 0; - } - } - } - -#if HAVE_INOTIFY - // readNotify() will modify mFDs and mFDCount, so this must be done after - // processing all other events. - if(mFds[0].revents & POLLIN) { - readNotify(mFds[0].fd); - mFds.editItemAt(0).revents = 0; - continue; // report added or removed devices immediately - } -#endif - - mInputFdIndex = 0; - - // Poll for events. Mind the wake lock dance! - // We hold a wake lock at all times except during poll(). 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. - release_wake_lock(WAKE_LOCK_ID); - - int pollResult = poll(mFds.editArray(), mFds.size(), -1); - - acquire_wake_lock(PARTIAL_WAKE_LOCK, WAKE_LOCK_ID); - - if (pollResult <= 0) { - if (errno != EINTR) { - LOGW("poll failed (errno=%d)\n", errno); - usleep(100000); - } - } - } -} - -/* - * Open the platform-specific input device. - */ -bool EventHub::openPlatformInput(void) { - /* - * Open platform-specific input device(s). - */ - int res, fd; - -#ifdef HAVE_INOTIFY - fd = inotify_init(); - res = inotify_add_watch(fd, DEVICE_PATH, IN_DELETE | IN_CREATE); - if(res < 0) { - LOGE("could not add watch for %s, %s\n", DEVICE_PATH, strerror(errno)); - } -#else - /* - * The code in EventHub::getEvent assumes that mFDs[0] is an inotify fd. - * We allocate space for it and set it to something invalid. - */ - fd = -1; -#endif - - // Reserve fd index 0 for inotify. - struct pollfd pollfd; - pollfd.fd = fd; - pollfd.events = POLLIN; - pollfd.revents = 0; - mFds.push(pollfd); - mDevices.push(NULL); - - res = scanDir(DEVICE_PATH); - if(res < 0) { - LOGE("scan dir failed for %s\n", DEVICE_PATH); - } - - return true; -} - -// ---------------------------------------------------------------------------- - -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 -}; - -int EventHub::openDevice(const char *devicePath) { - char buffer[80]; - - LOGV("Opening device: %s", devicePath); - - AutoMutex _l(mLock); - - int fd = open(devicePath, O_RDWR); - if(fd < 0) { - LOGE("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 - List<String8>::iterator iter = mExcludedDevices.begin(); - List<String8>::iterator end = mExcludedDevices.end(); - for ( ; iter != end; iter++) { - const char* test = *iter; - if (identifier.name == test) { - LOGI("ignoring event id %s driver %s\n", devicePath, test); - close(fd); - return -1; - } - } - - // Get device driver version. - int driverVersion; - if(ioctl(fd, EVIOCGVERSION, &driverVersion)) { - LOGE("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)) { - LOGE("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); - } - - // Make file descriptor non-blocking for use with poll(). - if (fcntl(fd, F_SETFL, O_NONBLOCK)) { - LOGE("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); - -#if 0 - LOGI("add device %d: %s\n", deviceId, devicePath); - LOGI(" bus: %04x\n" - " vendor %04x\n" - " product %04x\n" - " version %04x\n", - identifier.bus, identifier.vendor, identifier.product, identifier.version); - LOGI(" name: \"%s\"\n", identifier.name.string()); - LOGI(" location: \"%s\"\n", identifier.location.string()); - LOGI(" unique id: \"%s\"\n", identifier.uniqueId.string()); - LOGI(" driver: v%d.%d.%d\n", - driverVersion >> 16, (driverVersion >> 8) & 0xff, driverVersion & 0xff); -#endif - - // Load the configuration file for the device. - loadConfiguration(device); - - // Figure out the kinds of events the device reports. - - uint8_t key_bitmask[sizeof_bit_array(KEY_MAX + 1)]; - memset(key_bitmask, 0, sizeof(key_bitmask)); - - LOGV("Getting keys..."); - if (ioctl(fd, EVIOCGBIT(EV_KEY, sizeof(key_bitmask)), key_bitmask) >= 0) { - //LOGI("MAP\n"); - //for (int i = 0; i < sizeof(key_bitmask); i++) { - // LOGI("%d: 0x%02x\n", i, key_bitmask[i]); - //} - - // See if this is a keyboard. Ignore everything in the button range except for - // gamepads which are also considered keyboards. - if (containsNonZeroByte(key_bitmask, 0, sizeof_bit_array(BTN_MISC)) - || containsNonZeroByte(key_bitmask, sizeof_bit_array(BTN_GAMEPAD), - sizeof_bit_array(BTN_DIGI)) - || containsNonZeroByte(key_bitmask, sizeof_bit_array(KEY_OK), - sizeof_bit_array(KEY_MAX + 1))) { - device->classes |= INPUT_DEVICE_CLASS_KEYBOARD; - - device->keyBitmask = new uint8_t[sizeof(key_bitmask)]; - if (device->keyBitmask != NULL) { - memcpy(device->keyBitmask, key_bitmask, sizeof(key_bitmask)); - } else { - delete device; - LOGE("out of memory allocating key bitmask"); - return -1; - } - } - } - - // See if this is a cursor device such as a trackball or mouse. - if (test_bit(BTN_MOUSE, key_bitmask)) { - uint8_t rel_bitmask[sizeof_bit_array(REL_MAX + 1)]; - memset(rel_bitmask, 0, sizeof(rel_bitmask)); - LOGV("Getting relative controllers..."); - if (ioctl(fd, EVIOCGBIT(EV_REL, sizeof(rel_bitmask)), rel_bitmask) >= 0) { - if (test_bit(REL_X, rel_bitmask) && test_bit(REL_Y, rel_bitmask)) { - device->classes |= INPUT_DEVICE_CLASS_CURSOR; - } - } - } - - // See if this is a touch pad. - uint8_t abs_bitmask[sizeof_bit_array(ABS_MAX + 1)]; - memset(abs_bitmask, 0, sizeof(abs_bitmask)); - LOGV("Getting absolute controllers..."); - if (ioctl(fd, EVIOCGBIT(EV_ABS, sizeof(abs_bitmask)), abs_bitmask) >= 0) { - // Is this a new modern multi-touch driver? - if (test_bit(ABS_MT_POSITION_X, abs_bitmask) - && test_bit(ABS_MT_POSITION_Y, abs_bitmask)) { - device->classes |= INPUT_DEVICE_CLASS_TOUCHSCREEN | INPUT_DEVICE_CLASS_TOUCHSCREEN_MT; - - // Is this an old style single-touch driver? - } else if (test_bit(BTN_TOUCH, key_bitmask) - && test_bit(ABS_X, abs_bitmask) && test_bit(ABS_Y, abs_bitmask)) { - device->classes |= INPUT_DEVICE_CLASS_TOUCHSCREEN; - } - } - -#ifdef EV_SW - // figure out the switches this device reports - uint8_t sw_bitmask[sizeof_bit_array(SW_MAX + 1)]; - memset(sw_bitmask, 0, sizeof(sw_bitmask)); - bool hasSwitches = false; - if (ioctl(fd, EVIOCGBIT(EV_SW, sizeof(sw_bitmask)), sw_bitmask) >= 0) { - for (int i=0; i<EV_SW; i++) { - //LOGI("Device %d sw %d: has=%d", device->id, i, test_bit(i, sw_bitmask)); - if (test_bit(i, sw_bitmask)) { - hasSwitches = true; - if (mSwitches[i] == 0) { - mSwitches[i] = device->id; - } - } - } - } - if (hasSwitches) { - device->classes |= INPUT_DEVICE_CLASS_SWITCH; - } -#endif - - if ((device->classes & INPUT_DEVICE_CLASS_TOUCHSCREEN)) { - // 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 = loadVirtualKeyMap(device); - if (!status) { - device->classes |= INPUT_DEVICE_CLASS_KEYBOARD; - } - } - - if ((device->classes & INPUT_DEVICE_CLASS_KEYBOARD) != 0) { - // Load the keymap for the device. - status_t status = loadKeyMap(device); - - // Set system properties for the keyboard. - setKeyboardProperties(device, false); - - // Register the keyboard as a built-in keyboard if it is eligible. - if (!status - && mBuiltInKeyboardId == -1 - && isEligibleBuiltInKeyboard(device->identifier, - device->configuration, &device->keyMap)) { - mBuiltInKeyboardId = device->id; - setKeyboardProperties(device, true); - } - - // '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; - } - } - } - - // If the device isn't recognized as something we handle, don't monitor it. - if (device->classes == 0) { - LOGV("Dropping device: id=%d, path='%s', name='%s'", - deviceId, devicePath, device->identifier.name.string()); - delete device; - return -1; - } - - LOGI("New device: id=%d, fd=%d, path='%s', name='%s', classes=0x%x, " - "configuration='%s', keyLayout='%s', keyCharacterMap='%s', builtinKeyboard=%s", - deviceId, fd, devicePath, device->identifier.name.string(), - device->classes, - device->configurationFile.string(), - device->keyMap.keyLayoutFile.string(), - device->keyMap.keyCharacterMapFile.string(), - toString(mBuiltInKeyboardId == deviceId)); - - struct pollfd pollfd; - pollfd.fd = fd; - pollfd.events = POLLIN; - pollfd.revents = 0; - mFds.push(pollfd); - mDevices.push(device); - - device->next = mOpeningDevices; - mOpeningDevices = device; - return 0; -} - -void EventHub::loadConfiguration(Device* device) { - device->configurationFile = getInputDeviceConfigurationFilePathByDeviceIdentifier( - device->identifier, INPUT_DEVICE_CONFIGURATION_FILE_TYPE_CONFIGURATION); - if (device->configurationFile.isEmpty()) { - LOGD("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) { - LOGE("Error loading input device configuration file for device '%s'. " - "Using default configuration.", - device->identifier.name.string()); - } - } -} - -status_t EventHub::loadVirtualKeyMap(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::loadKeyMap(Device* device) { - return device->keyMap.load(device->identifier, device->configuration); -} - -void EventHub::setKeyboardProperties(Device* device, bool builtInKeyboard) { - int32_t id = builtInKeyboard ? 0 : device->id; - android::setKeyboardProperties(id, device->identifier, - device->keyMap.keyLayoutFile, device->keyMap.keyCharacterMapFile); -} - -void EventHub::clearKeyboardProperties(Device* device, bool builtInKeyboard) { - int32_t id = builtInKeyboard ? 0 : device->id; - android::clearKeyboardProperties(id); -} - -bool EventHub::hasKeycodeLocked(Device* device, int keycode) const { - if (!device->keyMap.haveKeyLayout() || !device->keyBitmask) { - return false; - } - - Vector<int32_t> scanCodes; - device->keyMap.keyLayoutMap->findScanCodes(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; -} - -int EventHub::closeDevice(const char *devicePath) { - AutoMutex _l(mLock); - - for (size_t i = FIRST_ACTUAL_DEVICE_INDEX; i < mDevices.size(); i++) { - Device* device = mDevices[i]; - if (device->path == devicePath) { - LOGI("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); - -#ifdef EV_SW - for (int j=0; j<EV_SW; j++) { - if (mSwitches[j] == device->id) { - mSwitches[j] = 0; - } - } -#endif - - if (device->id == mBuiltInKeyboardId) { - LOGW("built-in keyboard device %s (id=%d) is closing! the apps will not like this", - device->path.string(), mBuiltInKeyboardId); - mBuiltInKeyboardId = -1; - clearKeyboardProperties(device, true); - } - clearKeyboardProperties(device, false); - - mFds.removeAt(i); - mDevices.removeAt(i); - device->close(); - - device->next = mClosingDevices; - mClosingDevices = device; - return 0; - } - } - LOGE("remove device: %s not found\n", devicePath); - return -1; -} - -int EventHub::readNotify(int nfd) { -#ifdef HAVE_INOTIFY - int res; - char devname[PATH_MAX]; - char *filename; - char event_buf[512]; - int event_size; - int event_pos = 0; - struct inotify_event *event; - - LOGV("EventHub::readNotify nfd: %d\n", nfd); - res = read(nfd, event_buf, sizeof(event_buf)); - if(res < (int)sizeof(*event)) { - if(errno == EINTR) - return 0; - LOGW("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) { - openDevice(devname); - } - else { - closeDevice(devname); - } - } - event_size = sizeof(*event) + event->len; - res -= event_size; - event_pos += event_size; - } -#endif - return 0; -} - -int EventHub::scanDir(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); - openDevice(devname); - } - closedir(dir); - return 0; -} - -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 = FIRST_ACTUAL_DEVICE_INDEX; i < mDevices.size(); i++) { - const Device* device = mDevices[i]; - if (device) { - 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 "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()); - } - } - } // release lock -} - -}; // namespace android |