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-rw-r--r--libs/ui/EventHub.cpp124
1 files changed, 79 insertions, 45 deletions
diff --git a/libs/ui/EventHub.cpp b/libs/ui/EventHub.cpp
index 27895f2842..768b04e549 100644
--- a/libs/ui/EventHub.cpp
+++ b/libs/ui/EventHub.cpp
@@ -54,6 +54,9 @@
*/
#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 ID_MASK 0x0000ffff
#define SEQ_MASK 0x7fff0000
#define SEQ_SHIFT 16
@@ -182,7 +185,7 @@ int32_t EventHub::getScanCodeState(int32_t deviceId, int32_t deviceClasses,
}
int32_t EventHub::getScanCodeStateLocked(device_t* device, int32_t scanCode) const {
- uint8_t key_bitmask[(KEY_MAX + 7) / 8];
+ uint8_t key_bitmask[sizeof_bit_array(KEY_MAX + 1)];
memset(key_bitmask, 0, sizeof(key_bitmask));
if (ioctl(mFDs[id_to_index(device->id)].fd,
EVIOCGKEY(sizeof(key_bitmask)), key_bitmask) >= 0) {
@@ -218,7 +221,7 @@ int32_t EventHub::getKeyCodeStateLocked(device_t* device, int32_t keyCode) const
Vector<int32_t> scanCodes;
device->layoutMap->findScancodes(keyCode, &scanCodes);
- uint8_t key_bitmask[(KEY_MAX + 7) / 8];
+ uint8_t key_bitmask[sizeof_bit_array(KEY_MAX + 1)];
memset(key_bitmask, 0, sizeof(key_bitmask));
if (ioctl(mFDs[id_to_index(device->id)].fd,
EVIOCGKEY(sizeof(key_bitmask)), key_bitmask) >= 0) {
@@ -264,7 +267,7 @@ int32_t EventHub::getSwitchState(int32_t deviceId, int32_t deviceClasses, int32_
}
int32_t EventHub::getSwitchStateLocked(device_t* device, int32_t sw) const {
- uint8_t sw_bitmask[(SW_MAX + 7) / 8];
+ uint8_t sw_bitmask[sizeof_bit_array(SW_MAX + 1)];
memset(sw_bitmask, 0, sizeof(sw_bitmask));
if (ioctl(mFDs[id_to_index(device->id)].fd,
EVIOCGSW(sizeof(sw_bitmask)), sw_bitmask) >= 0) {
@@ -409,7 +412,7 @@ bool EventHub::getEvent(int32_t* outDeviceId, int32_t* outType,
LOGV("iev.code=%d outKeycode=%d outFlags=0x%08x err=%d\n",
iev.code, *outKeycode, *outFlags, err);
if (err != 0) {
- *outKeycode = 0;
+ *outKeycode = AKEYCODE_UNKNOWN;
*outFlags = 0;
}
} else {
@@ -509,6 +512,26 @@ bool EventHub::hasKeys(size_t numCodes, const int32_t* keyCodes, uint8_t* outFla
// ----------------------------------------------------------------------------
+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::open_device(const char *deviceName)
{
int version;
@@ -626,27 +649,27 @@ int EventHub::open_device(const char *deviceName)
mFDs[mFDCount].fd = fd;
mFDs[mFDCount].events = POLLIN;
- // figure out the kinds of events the device reports
+ // Figure out the kinds of events the device reports.
- // See if this is a keyboard, and classify it. Note that we only
- // consider up through the function keys; we don't want to include
- // ones after that (play cd etc) so we don't mistakenly consider a
- // controller to be a keyboard.
- uint8_t key_bitmask[(KEY_MAX+7)/8];
+ 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<((KEY_MAX+7)/8); i++) {
+ //for (int i = 0; i < sizeof(key_bitmask); 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 |= INPUT_DEVICE_CLASS_KEYBOARD;
- break;
- }
- }
- if ((device->classes & INPUT_DEVICE_CLASS_KEYBOARD) != 0) {
+
+ // 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));
@@ -658,39 +681,39 @@ int EventHub::open_device(const char *deviceName)
}
}
- // See if this is a trackball.
+ // See if this is a trackball (or mouse).
if (test_bit(BTN_MOUSE, key_bitmask)) {
- uint8_t rel_bitmask[(REL_MAX+7)/8];
+ 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 (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_TRACKBALL;
}
}
}
-
- uint8_t abs_bitmask[(ABS_MAX+7)/8];
+
+ // 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...");
- 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 |= 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;
+ 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_TOUCH_MAJOR, abs_bitmask)
+ && 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[(SW_MAX+7)/8];
+ uint8_t sw_bitmask[sizeof_bit_array(SW_MAX + 1)];
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++) {
@@ -726,7 +749,10 @@ int EventHub::open_device(const char *deviceName)
"%s/usr/keylayout/%s", root, "qwerty.kl");
defaultKeymap = true;
}
- device->layoutMap->load(keylayoutFilename);
+ status_t status = device->layoutMap->load(keylayoutFilename);
+ if (status) {
+ LOGE("Error %d loading key layout.", status);
+ }
// tell the world about the devname (the descriptive name)
if (!mHaveFirstKeyboard && !defaultKeymap && strstr(name, "-keypad")) {
@@ -746,19 +772,27 @@ int EventHub::open_device(const char *deviceName)
property_set(propName, name);
// 'Q' key support = cheap test of whether this is an alpha-capable kbd
- if (hasKeycode(device, kKeyCodeQ)) {
+ if (hasKeycode(device, AKEYCODE_Q)) {
device->classes |= INPUT_DEVICE_CLASS_ALPHAKEY;
}
- // See if this has a DPAD.
- if (hasKeycode(device, kKeyCodeDpadUp) &&
- hasKeycode(device, kKeyCodeDpadDown) &&
- hasKeycode(device, kKeyCodeDpadLeft) &&
- hasKeycode(device, kKeyCodeDpadRight) &&
- hasKeycode(device, kKeyCodeDpadCenter)) {
+ // See if this device has a DPAD.
+ if (hasKeycode(device, AKEYCODE_DPAD_UP) &&
+ hasKeycode(device, AKEYCODE_DPAD_DOWN) &&
+ hasKeycode(device, AKEYCODE_DPAD_LEFT) &&
+ hasKeycode(device, AKEYCODE_DPAD_RIGHT) &&
+ hasKeycode(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); i++) {
+ if (hasKeycode(device, GAMEPAD_KEYCODES[i])) {
+ device->classes |= INPUT_DEVICE_CLASS_GAMEPAD;
+ break;
+ }
+ }
+
LOGI("New keyboard: device->id=0x%x devname='%s' propName='%s' keylayout='%s'\n",
device->id, name, propName, keylayoutFilename);
}
generated by cgit v1.2.3-59-g8ed1b (git 2.39.0) at 2025-10-28 23:00:33 +0000