894 lines
27 KiB
C++
894 lines
27 KiB
C++
//
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// Copyright 2005 The Android Open Source Project
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//
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// Handle events, like key input and vsync.
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//
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// The goal is to provide an optimized solution for Linux, not an
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// implementation that works well across all platforms. We expect
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// events to arrive on file descriptors, so that we can use a select()
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// select() call to sleep.
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//
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// We can't select() on anything but network sockets in Windows, so we
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// provide an alternative implementation of waitEvent for that platform.
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//
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#define LOG_TAG "EventHub"
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//#define LOG_NDEBUG 0
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#include <ui/EventHub.h>
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#include <ui/KeycodeLabels.h>
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#include <hardware_legacy/power.h>
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#include <cutils/properties.h>
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#include <utils/Log.h>
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#include <utils/Timers.h>
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#include <utils/threads.h>
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#include <utils/Errors.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <memory.h>
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#include <errno.h>
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#include <assert.h>
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#include "KeyLayoutMap.h"
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#include <string.h>
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#include <stdint.h>
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#include <dirent.h>
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#ifdef HAVE_INOTIFY
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# include <sys/inotify.h>
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#endif
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#ifdef HAVE_ANDROID_OS
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# include <sys/limits.h> /* not part of Linux */
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#endif
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#include <sys/poll.h>
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#include <sys/ioctl.h>
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/* this macro is used to tell if "bit" is set in "array"
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* it selects a byte from the array, and does a boolean AND
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* operation with a byte that only has the relevant bit set.
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* eg. to check for the 12th bit, we do (array[1] & 1<<4)
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*/
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#define test_bit(bit, array) (array[bit/8] & (1<<(bit%8)))
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#define ID_MASK 0x0000ffff
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#define SEQ_MASK 0x7fff0000
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#define SEQ_SHIFT 16
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#define id_to_index(id) ((id&ID_MASK)+1)
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#ifndef ABS_MT_TOUCH_MAJOR
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#define ABS_MT_TOUCH_MAJOR 0x30 /* Major axis of touching ellipse */
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#endif
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#ifndef ABS_MT_POSITION_X
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#define ABS_MT_POSITION_X 0x35 /* Center X ellipse position */
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#endif
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#ifndef ABS_MT_POSITION_Y
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#define ABS_MT_POSITION_Y 0x36 /* Center Y ellipse position */
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#endif
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namespace android {
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static const char *WAKE_LOCK_ID = "KeyEvents";
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static const char *device_path = "/dev/input";
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/* return the larger integer */
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static inline int max(int v1, int v2)
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{
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return (v1 > v2) ? v1 : v2;
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}
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EventHub::device_t::device_t(int32_t _id, const char* _path, const char* name)
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: id(_id), path(_path), name(name), classes(0)
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, keyBitmask(NULL), layoutMap(new KeyLayoutMap()), next(NULL) {
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}
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EventHub::device_t::~device_t() {
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delete [] keyBitmask;
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delete layoutMap;
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}
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EventHub::EventHub(void)
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: mError(NO_INIT), mHaveFirstKeyboard(false), mFirstKeyboardId(0)
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, mDevicesById(0), mNumDevicesById(0)
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, mOpeningDevices(0), mClosingDevices(0)
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, mDevices(0), mFDs(0), mFDCount(0), mOpened(false)
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{
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acquire_wake_lock(PARTIAL_WAKE_LOCK, WAKE_LOCK_ID);
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#ifdef EV_SW
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memset(mSwitches, 0, sizeof(mSwitches));
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#endif
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}
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/*
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* Clean up.
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*/
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EventHub::~EventHub(void)
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{
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release_wake_lock(WAKE_LOCK_ID);
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// we should free stuff here...
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}
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status_t EventHub::errorCheck() const
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{
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return mError;
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}
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String8 EventHub::getDeviceName(int32_t deviceId) const
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{
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AutoMutex _l(mLock);
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device_t* device = getDevice(deviceId);
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if (device == NULL) return String8();
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return device->name;
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}
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uint32_t EventHub::getDeviceClasses(int32_t deviceId) const
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{
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AutoMutex _l(mLock);
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device_t* device = getDevice(deviceId);
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if (device == NULL) return 0;
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return device->classes;
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}
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int EventHub::getAbsoluteInfo(int32_t deviceId, int axis, int *outMinValue,
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int* outMaxValue, int* outFlat, int* outFuzz) const
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{
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AutoMutex _l(mLock);
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device_t* device = getDevice(deviceId);
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if (device == NULL) return -1;
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struct input_absinfo info;
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if(ioctl(mFDs[id_to_index(device->id)].fd, EVIOCGABS(axis), &info)) {
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LOGE("Error reading absolute controller %d for device %s fd %d\n",
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axis, device->name.string(), mFDs[id_to_index(device->id)].fd);
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return -1;
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}
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*outMinValue = info.minimum;
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*outMaxValue = info.maximum;
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*outFlat = info.flat;
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*outFuzz = info.fuzz;
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return 0;
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}
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int EventHub::getSwitchState(int sw) const
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{
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#ifdef EV_SW
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if (sw >= 0 && sw <= SW_MAX) {
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int32_t devid = mSwitches[sw];
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if (devid != 0) {
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return getSwitchState(devid, sw);
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}
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}
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#endif
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return -1;
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}
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int EventHub::getSwitchState(int32_t deviceId, int sw) const
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{
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#ifdef EV_SW
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AutoMutex _l(mLock);
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device_t* device = getDevice(deviceId);
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if (device == NULL) return -1;
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if (sw >= 0 && sw <= SW_MAX) {
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uint8_t sw_bitmask[(SW_MAX+1)/8];
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memset(sw_bitmask, 0, sizeof(sw_bitmask));
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if (ioctl(mFDs[id_to_index(device->id)].fd,
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EVIOCGSW(sizeof(sw_bitmask)), sw_bitmask) >= 0) {
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return test_bit(sw, sw_bitmask) ? 1 : 0;
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}
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}
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#endif
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return -1;
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}
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int EventHub::getScancodeState(int code) const
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{
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return getScancodeState(mFirstKeyboardId, code);
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}
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int EventHub::getScancodeState(int32_t deviceId, int code) const
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{
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AutoMutex _l(mLock);
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device_t* device = getDevice(deviceId);
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if (device == NULL) return -1;
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if (code >= 0 && code <= KEY_MAX) {
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uint8_t key_bitmask[(KEY_MAX+1)/8];
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memset(key_bitmask, 0, sizeof(key_bitmask));
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if (ioctl(mFDs[id_to_index(device->id)].fd,
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EVIOCGKEY(sizeof(key_bitmask)), key_bitmask) >= 0) {
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return test_bit(code, key_bitmask) ? 1 : 0;
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}
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}
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return -1;
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}
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int EventHub::getKeycodeState(int code) const
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{
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return getKeycodeState(mFirstKeyboardId, code);
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}
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int EventHub::getKeycodeState(int32_t deviceId, int code) const
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{
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AutoMutex _l(mLock);
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device_t* device = getDevice(deviceId);
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if (device == NULL || device->layoutMap == NULL) return -1;
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Vector<int32_t> scanCodes;
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device->layoutMap->findScancodes(code, &scanCodes);
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uint8_t key_bitmask[(KEY_MAX+1)/8];
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memset(key_bitmask, 0, sizeof(key_bitmask));
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if (ioctl(mFDs[id_to_index(device->id)].fd,
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EVIOCGKEY(sizeof(key_bitmask)), key_bitmask) >= 0) {
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#if 0
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for (size_t i=0; i<=KEY_MAX; i++) {
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LOGI("(Scan code %d: down=%d)", i, test_bit(i, key_bitmask));
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}
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#endif
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const size_t N = scanCodes.size();
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for (size_t i=0; i<N && i<=KEY_MAX; i++) {
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int32_t sc = scanCodes.itemAt(i);
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//LOGI("Code %d: down=%d", sc, test_bit(sc, key_bitmask));
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if (sc >= 0 && sc <= KEY_MAX && test_bit(sc, key_bitmask)) {
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return 1;
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}
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}
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}
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return 0;
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}
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status_t EventHub::scancodeToKeycode(int32_t deviceId, int scancode,
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int32_t* outKeycode, uint32_t* outFlags) const
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{
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AutoMutex _l(mLock);
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device_t* device = getDevice(deviceId);
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if (device != NULL && device->layoutMap != NULL) {
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status_t err = device->layoutMap->map(scancode, outKeycode, outFlags);
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if (err == NO_ERROR) {
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return NO_ERROR;
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}
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}
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if (mHaveFirstKeyboard) {
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device = getDevice(mFirstKeyboardId);
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if (device != NULL && device->layoutMap != NULL) {
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status_t err = device->layoutMap->map(scancode, outKeycode, outFlags);
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if (err == NO_ERROR) {
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return NO_ERROR;
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}
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}
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}
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*outKeycode = 0;
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*outFlags = 0;
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return NAME_NOT_FOUND;
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}
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void EventHub::addExcludedDevice(const char* deviceName)
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{
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String8 name(deviceName);
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mExcludedDevices.push_back(name);
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}
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EventHub::device_t* EventHub::getDevice(int32_t deviceId) const
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{
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if (deviceId == 0) deviceId = mFirstKeyboardId;
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int32_t id = deviceId & ID_MASK;
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if (id >= mNumDevicesById || id < 0) return NULL;
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device_t* dev = mDevicesById[id].device;
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if (dev == NULL) return NULL;
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if (dev->id == deviceId) {
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return dev;
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}
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return NULL;
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}
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bool EventHub::getEvent(int32_t* outDeviceId, int32_t* outType,
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int32_t* outScancode, int32_t* outKeycode, uint32_t *outFlags,
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int32_t* outValue, nsecs_t* outWhen)
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{
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*outDeviceId = 0;
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*outType = 0;
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*outScancode = 0;
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*outKeycode = 0;
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*outFlags = 0;
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*outValue = 0;
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*outWhen = 0;
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status_t err;
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fd_set readfds;
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int maxFd = -1;
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int cc;
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int i;
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int res;
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int pollres;
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struct input_event iev;
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// Note that we only allow one caller to getEvent(), so don't need
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// to do locking here... only when adding/removing devices.
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if (!mOpened) {
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mError = openPlatformInput() ? NO_ERROR : UNKNOWN_ERROR;
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mOpened = true;
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}
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while(1) {
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// First, report any devices that had last been added/removed.
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if (mClosingDevices != NULL) {
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device_t* device = mClosingDevices;
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LOGV("Reporting device closed: id=0x%x, name=%s\n",
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device->id, device->path.string());
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mClosingDevices = device->next;
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*outDeviceId = device->id;
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if (*outDeviceId == mFirstKeyboardId) *outDeviceId = 0;
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*outType = DEVICE_REMOVED;
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delete device;
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return true;
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}
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if (mOpeningDevices != NULL) {
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device_t* device = mOpeningDevices;
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LOGV("Reporting device opened: id=0x%x, name=%s\n",
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device->id, device->path.string());
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mOpeningDevices = device->next;
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*outDeviceId = device->id;
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if (*outDeviceId == mFirstKeyboardId) *outDeviceId = 0;
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*outType = DEVICE_ADDED;
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return true;
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}
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release_wake_lock(WAKE_LOCK_ID);
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pollres = poll(mFDs, mFDCount, -1);
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acquire_wake_lock(PARTIAL_WAKE_LOCK, WAKE_LOCK_ID);
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if (pollres <= 0) {
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if (errno != EINTR) {
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LOGW("select failed (errno=%d)\n", errno);
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usleep(100000);
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}
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continue;
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}
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//printf("poll %d, returned %d\n", mFDCount, pollres);
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// mFDs[0] is used for inotify, so process regular events starting at mFDs[1]
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for(i = 1; i < mFDCount; i++) {
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if(mFDs[i].revents) {
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LOGV("revents for %d = 0x%08x", i, mFDs[i].revents);
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if(mFDs[i].revents & POLLIN) {
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res = read(mFDs[i].fd, &iev, sizeof(iev));
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if (res == sizeof(iev)) {
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LOGV("%s got: t0=%d, t1=%d, type=%d, code=%d, v=%d",
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mDevices[i]->path.string(),
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(int) iev.time.tv_sec, (int) iev.time.tv_usec,
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iev.type, iev.code, iev.value);
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*outDeviceId = mDevices[i]->id;
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if (*outDeviceId == mFirstKeyboardId) *outDeviceId = 0;
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*outType = iev.type;
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*outScancode = iev.code;
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if (iev.type == EV_KEY) {
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err = mDevices[i]->layoutMap->map(iev.code, outKeycode, outFlags);
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LOGV("iev.code=%d outKeycode=%d outFlags=0x%08x err=%d\n",
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iev.code, *outKeycode, *outFlags, err);
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if (err != 0) {
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*outKeycode = 0;
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*outFlags = 0;
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}
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} else {
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*outKeycode = iev.code;
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}
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*outValue = iev.value;
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*outWhen = s2ns(iev.time.tv_sec) + us2ns(iev.time.tv_usec);
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return true;
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} else {
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if (res<0) {
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LOGW("could not get event (errno=%d)", errno);
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} else {
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LOGE("could not get event (wrong size: %d)", res);
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}
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continue;
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}
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}
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}
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}
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// read_notify() will modify mFDs and mFDCount, so this must be done after
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// processing all other events.
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if(mFDs[0].revents & POLLIN) {
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read_notify(mFDs[0].fd);
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}
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}
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}
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/*
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* Open the platform-specific input device.
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*/
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bool EventHub::openPlatformInput(void)
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{
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/*
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* Open platform-specific input device(s).
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*/
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int res;
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mFDCount = 1;
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mFDs = (pollfd *)calloc(1, sizeof(mFDs[0]));
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mDevices = (device_t **)calloc(1, sizeof(mDevices[0]));
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mFDs[0].events = POLLIN;
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mDevices[0] = NULL;
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#ifdef HAVE_INOTIFY
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mFDs[0].fd = inotify_init();
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res = inotify_add_watch(mFDs[0].fd, device_path, IN_DELETE | IN_CREATE);
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if(res < 0) {
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LOGE("could not add watch for %s, %s\n", device_path, strerror(errno));
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}
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#else
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/*
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* The code in EventHub::getEvent assumes that mFDs[0] is an inotify fd.
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* We allocate space for it and set it to something invalid.
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*/
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mFDs[0].fd = -1;
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#endif
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res = scan_dir(device_path);
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if(res < 0) {
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LOGE("scan dir failed for %s\n", device_path);
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//open_device("/dev/input/event0");
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}
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return true;
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}
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/*
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* Inspect the known devices to determine whether physical keys exist for the given
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* framework-domain key codes.
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*/
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bool EventHub::hasKeys(size_t numCodes, int32_t* keyCodes, uint8_t* outFlags) {
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for (size_t codeIndex = 0; codeIndex < numCodes; codeIndex++) {
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outFlags[codeIndex] = 0;
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// check each available hardware device for support for this keycode
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Vector<int32_t> scanCodes;
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for (int n = 0; (n < mFDCount) && (outFlags[codeIndex] == 0); n++) {
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if (mDevices[n]) {
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status_t err = mDevices[n]->layoutMap->findScancodes(keyCodes[codeIndex], &scanCodes);
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if (!err) {
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// check the possible scan codes identified by the layout map against the
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// map of codes actually emitted by the driver
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for (size_t sc = 0; sc < scanCodes.size(); sc++) {
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if (test_bit(scanCodes[sc], mDevices[n]->keyBitmask)) {
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outFlags[codeIndex] = 1;
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break;
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}
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}
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}
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}
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}
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}
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return true;
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}
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// ----------------------------------------------------------------------------
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int EventHub::open_device(const char *deviceName)
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{
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int version;
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int fd;
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struct pollfd *new_mFDs;
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device_t **new_devices;
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char **new_device_names;
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char name[80];
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char location[80];
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char idstr[80];
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struct input_id id;
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LOGV("Opening device: %s", deviceName);
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AutoMutex _l(mLock);
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fd = open(deviceName, O_RDWR);
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if(fd < 0) {
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LOGE("could not open %s, %s\n", deviceName, strerror(errno));
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return -1;
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}
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if(ioctl(fd, EVIOCGVERSION, &version)) {
|
|
LOGE("could not get driver version for %s, %s\n", deviceName, strerror(errno));
|
|
return -1;
|
|
}
|
|
if(ioctl(fd, EVIOCGID, &id)) {
|
|
LOGE("could not get driver id for %s, %s\n", deviceName, strerror(errno));
|
|
return -1;
|
|
}
|
|
name[sizeof(name) - 1] = '\0';
|
|
location[sizeof(location) - 1] = '\0';
|
|
idstr[sizeof(idstr) - 1] = '\0';
|
|
if(ioctl(fd, EVIOCGNAME(sizeof(name) - 1), &name) < 1) {
|
|
//fprintf(stderr, "could not get device name for %s, %s\n", deviceName, strerror(errno));
|
|
name[0] = '\0';
|
|
}
|
|
|
|
// 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 (strcmp(name, test) == 0) {
|
|
LOGI("ignoring event id %s driver %s\n", deviceName, test);
|
|
close(fd);
|
|
fd = -1;
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
if(ioctl(fd, EVIOCGPHYS(sizeof(location) - 1), &location) < 1) {
|
|
//fprintf(stderr, "could not get location for %s, %s\n", deviceName, strerror(errno));
|
|
location[0] = '\0';
|
|
}
|
|
if(ioctl(fd, EVIOCGUNIQ(sizeof(idstr) - 1), &idstr) < 1) {
|
|
//fprintf(stderr, "could not get idstring for %s, %s\n", deviceName, strerror(errno));
|
|
idstr[0] = '\0';
|
|
}
|
|
|
|
int devid = 0;
|
|
while (devid < mNumDevicesById) {
|
|
if (mDevicesById[devid].device == NULL) {
|
|
break;
|
|
}
|
|
devid++;
|
|
}
|
|
if (devid >= mNumDevicesById) {
|
|
device_ent* new_devids = (device_ent*)realloc(mDevicesById,
|
|
sizeof(mDevicesById[0]) * (devid + 1));
|
|
if (new_devids == NULL) {
|
|
LOGE("out of memory");
|
|
return -1;
|
|
}
|
|
mDevicesById = new_devids;
|
|
mNumDevicesById = devid+1;
|
|
mDevicesById[devid].device = NULL;
|
|
mDevicesById[devid].seq = 0;
|
|
}
|
|
|
|
mDevicesById[devid].seq = (mDevicesById[devid].seq+(1<<SEQ_SHIFT))&SEQ_MASK;
|
|
if (mDevicesById[devid].seq == 0) {
|
|
mDevicesById[devid].seq = 1<<SEQ_SHIFT;
|
|
}
|
|
|
|
new_mFDs = (pollfd*)realloc(mFDs, sizeof(mFDs[0]) * (mFDCount + 1));
|
|
new_devices = (device_t**)realloc(mDevices, sizeof(mDevices[0]) * (mFDCount + 1));
|
|
if (new_mFDs == NULL || new_devices == NULL) {
|
|
LOGE("out of memory");
|
|
return -1;
|
|
}
|
|
mFDs = new_mFDs;
|
|
mDevices = new_devices;
|
|
|
|
#if 0
|
|
LOGI("add device %d: %s\n", mFDCount, deviceName);
|
|
LOGI(" bus: %04x\n"
|
|
" vendor %04x\n"
|
|
" product %04x\n"
|
|
" version %04x\n",
|
|
id.bustype, id.vendor, id.product, id.version);
|
|
LOGI(" name: \"%s\"\n", name);
|
|
LOGI(" location: \"%s\"\n"
|
|
" id: \"%s\"\n", location, idstr);
|
|
LOGI(" version: %d.%d.%d\n",
|
|
version >> 16, (version >> 8) & 0xff, version & 0xff);
|
|
#endif
|
|
|
|
device_t* device = new device_t(devid|mDevicesById[devid].seq, deviceName, name);
|
|
if (device == NULL) {
|
|
LOGE("out of memory");
|
|
return -1;
|
|
}
|
|
|
|
mFDs[mFDCount].fd = fd;
|
|
mFDs[mFDCount].events = POLLIN;
|
|
|
|
// figure out the kinds of events the device reports
|
|
|
|
// See if this is a keyboard, and classify it.
|
|
uint8_t key_bitmask[(KEY_MAX+1)/8];
|
|
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<((KEY_MAX+1)/8); i++) {
|
|
// LOGI("%d: 0x%02x\n", i, key_bitmask[i]);
|
|
//}
|
|
for (int i=0; i<((BTN_MISC+7)/8); i++) {
|
|
if (key_bitmask[i] != 0) {
|
|
device->classes |= CLASS_KEYBOARD;
|
|
break;
|
|
}
|
|
}
|
|
if ((device->classes & CLASS_KEYBOARD) != 0) {
|
|
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 trackball.
|
|
if (test_bit(BTN_MOUSE, key_bitmask)) {
|
|
uint8_t rel_bitmask[(REL_MAX+1)/8];
|
|
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 |= CLASS_TRACKBALL;
|
|
}
|
|
}
|
|
}
|
|
|
|
uint8_t abs_bitmask[(ABS_MAX+1)/8];
|
|
memset(abs_bitmask, 0, sizeof(abs_bitmask));
|
|
LOGV("Getting absolute controllers...");
|
|
ioctl(fd, EVIOCGBIT(EV_ABS, sizeof(abs_bitmask)), abs_bitmask);
|
|
|
|
// Is this a new modern multi-touch driver?
|
|
if (test_bit(ABS_MT_TOUCH_MAJOR, abs_bitmask)
|
|
&& test_bit(ABS_MT_POSITION_X, abs_bitmask)
|
|
&& test_bit(ABS_MT_POSITION_Y, abs_bitmask)) {
|
|
device->classes |= CLASS_TOUCHSCREEN | 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 |= CLASS_TOUCHSCREEN;
|
|
}
|
|
|
|
#ifdef EV_SW
|
|
// figure out the switches this device reports
|
|
uint8_t sw_bitmask[(SW_MAX+1)/8];
|
|
memset(sw_bitmask, 0, sizeof(sw_bitmask));
|
|
if (ioctl(fd, EVIOCGBIT(EV_SW, sizeof(sw_bitmask)), sw_bitmask) >= 0) {
|
|
for (int i=0; i<EV_SW; i++) {
|
|
//LOGI("Device 0x%x sw %d: has=%d", device->id, i, test_bit(i, sw_bitmask));
|
|
if (test_bit(i, sw_bitmask)) {
|
|
if (mSwitches[i] == 0) {
|
|
mSwitches[i] = device->id;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
|
|
if ((device->classes&CLASS_KEYBOARD) != 0) {
|
|
char tmpfn[sizeof(name)];
|
|
char keylayoutFilename[300];
|
|
|
|
// a more descriptive name
|
|
device->name = name;
|
|
|
|
// replace all the spaces with underscores
|
|
strcpy(tmpfn, name);
|
|
for (char *p = strchr(tmpfn, ' '); p && *p; p = strchr(tmpfn, ' '))
|
|
*p = '_';
|
|
|
|
// find the .kl file we need for this device
|
|
const char* root = getenv("ANDROID_ROOT");
|
|
snprintf(keylayoutFilename, sizeof(keylayoutFilename),
|
|
"%s/usr/keylayout/%s.kl", root, tmpfn);
|
|
bool defaultKeymap = false;
|
|
if (access(keylayoutFilename, R_OK)) {
|
|
snprintf(keylayoutFilename, sizeof(keylayoutFilename),
|
|
"%s/usr/keylayout/%s", root, "qwerty.kl");
|
|
defaultKeymap = true;
|
|
}
|
|
device->layoutMap->load(keylayoutFilename);
|
|
|
|
// tell the world about the devname (the descriptive name)
|
|
int32_t publicID;
|
|
if (!mHaveFirstKeyboard && !defaultKeymap) {
|
|
publicID = 0;
|
|
// the built-in keyboard has a well-known device ID of 0,
|
|
// this device better not go away.
|
|
mHaveFirstKeyboard = true;
|
|
mFirstKeyboardId = device->id;
|
|
} else {
|
|
publicID = device->id;
|
|
// ensure mFirstKeyboardId is set to -something-.
|
|
if (mFirstKeyboardId == 0) {
|
|
mFirstKeyboardId = device->id;
|
|
}
|
|
}
|
|
char propName[100];
|
|
sprintf(propName, "hw.keyboards.%u.devname", publicID);
|
|
property_set(propName, name);
|
|
|
|
// 'Q' key support = cheap test of whether this is an alpha-capable kbd
|
|
if (hasKeycode(device, kKeyCodeQ)) {
|
|
device->classes |= CLASS_ALPHAKEY;
|
|
}
|
|
|
|
// See if this has a DPAD.
|
|
if (hasKeycode(device, kKeyCodeDpadUp) &&
|
|
hasKeycode(device, kKeyCodeDpadDown) &&
|
|
hasKeycode(device, kKeyCodeDpadLeft) &&
|
|
hasKeycode(device, kKeyCodeDpadRight) &&
|
|
hasKeycode(device, kKeyCodeDpadCenter)) {
|
|
device->classes |= CLASS_DPAD;
|
|
}
|
|
|
|
LOGI("New keyboard: publicID=%d device->id=0x%x devname='%s' propName='%s' keylayout='%s'\n",
|
|
publicID, device->id, name, propName, keylayoutFilename);
|
|
}
|
|
|
|
LOGI("New device: path=%s name=%s id=0x%x (of 0x%x) index=%d fd=%d classes=0x%x\n",
|
|
deviceName, name, device->id, mNumDevicesById, mFDCount, fd, device->classes);
|
|
|
|
LOGV("Adding device %s %p at %d, id = %d, classes = 0x%x\n",
|
|
deviceName, device, mFDCount, devid, device->classes);
|
|
|
|
mDevicesById[devid].device = device;
|
|
device->next = mOpeningDevices;
|
|
mOpeningDevices = device;
|
|
mDevices[mFDCount] = device;
|
|
|
|
mFDCount++;
|
|
return 0;
|
|
}
|
|
|
|
bool EventHub::hasKeycode(device_t* device, int keycode) const
|
|
{
|
|
if (device->keyBitmask == NULL || device->layoutMap == NULL) {
|
|
return false;
|
|
}
|
|
|
|
Vector<int32_t> scanCodes;
|
|
device->layoutMap->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::close_device(const char *deviceName)
|
|
{
|
|
AutoMutex _l(mLock);
|
|
|
|
int i;
|
|
for(i = 1; i < mFDCount; i++) {
|
|
if(strcmp(mDevices[i]->path.string(), deviceName) == 0) {
|
|
//LOGD("remove device %d: %s\n", i, deviceName);
|
|
device_t* device = mDevices[i];
|
|
int count = mFDCount - i - 1;
|
|
int index = (device->id&ID_MASK);
|
|
mDevicesById[index].device = NULL;
|
|
memmove(mDevices + i, mDevices + i + 1, sizeof(mDevices[0]) * count);
|
|
memmove(mFDs + i, mFDs + i + 1, sizeof(mFDs[0]) * count);
|
|
|
|
#ifdef EV_SW
|
|
for (int j=0; j<EV_SW; j++) {
|
|
if (mSwitches[j] == device->id) {
|
|
mSwitches[j] = 0;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
device->next = mClosingDevices;
|
|
mClosingDevices = device;
|
|
|
|
mFDCount--;
|
|
|
|
uint32_t publicID;
|
|
if (device->id == mFirstKeyboardId) {
|
|
LOGW("built-in keyboard device %s (id=%d) is closing! the apps will not like this",
|
|
device->path.string(), mFirstKeyboardId);
|
|
mFirstKeyboardId = 0;
|
|
publicID = 0;
|
|
} else {
|
|
publicID = device->id;
|
|
}
|
|
// clear the property
|
|
char propName[100];
|
|
sprintf(propName, "hw.keyboards.%u.devname", publicID);
|
|
property_set(propName, NULL);
|
|
return 0;
|
|
}
|
|
}
|
|
LOGE("remote device: %s not found\n", deviceName);
|
|
return -1;
|
|
}
|
|
|
|
int EventHub::read_notify(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;
|
|
|
|
LOGD("EventHub::read_notify 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) {
|
|
open_device(devname);
|
|
}
|
|
else {
|
|
close_device(devname);
|
|
}
|
|
}
|
|
event_size = sizeof(*event) + event->len;
|
|
res -= event_size;
|
|
event_pos += event_size;
|
|
}
|
|
#endif
|
|
return 0;
|
|
}
|
|
|
|
|
|
int EventHub::scan_dir(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);
|
|
open_device(devname);
|
|
}
|
|
closedir(dir);
|
|
return 0;
|
|
}
|
|
|
|
}; // namespace android
|