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-rw-r--r--libs/ui/EventHub.cpp90
1 files changed, 71 insertions, 19 deletions
diff --git a/libs/ui/EventHub.cpp b/libs/ui/EventHub.cpp
index 59c9476..27334b7 100644
--- a/libs/ui/EventHub.cpp
+++ b/libs/ui/EventHub.cpp
@@ -16,6 +16,7 @@
//#define LOG_NDEBUG 0
#include <ui/EventHub.h>
+#include <ui/KeycodeLabels.h>
#include <hardware_legacy/power.h>
#include <cutils/properties.h>
@@ -58,6 +59,18 @@
#define SEQ_SHIFT 16
#define id_to_index(id) ((id&ID_MASK)+1)
+#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
+
namespace android {
static const char *WAKE_LOCK_ID = "KeyEvents";
@@ -590,6 +603,8 @@ int EventHub::open_device(const char *deviceName)
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...");
@@ -601,15 +616,11 @@ int EventHub::open_device(const char *deviceName)
for (int i=0; i<((BTN_MISC+7)/8); i++) {
if (key_bitmask[i] != 0) {
device->classes |= CLASS_KEYBOARD;
- // 'Q' key support = cheap test of whether this is an alpha-capable kbd
- if (test_bit(KEY_Q, key_bitmask)) {
- device->classes |= CLASS_ALPHAKEY;
- }
break;
}
}
if ((device->classes & CLASS_KEYBOARD) != 0) {
- device->keyBitmask = new uint8_t[(KEY_MAX+1)/8];
+ device->keyBitmask = new uint8_t[sizeof(key_bitmask)];
if (device->keyBitmask != NULL) {
memcpy(device->keyBitmask, key_bitmask, sizeof(key_bitmask));
} else {
@@ -619,6 +630,8 @@ int EventHub::open_device(const char *deviceName)
}
}
}
+
+ // 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));
@@ -630,16 +643,22 @@ int EventHub::open_device(const char *deviceName)
}
}
}
- if (test_bit(BTN_TOUCH, key_bitmask)) {
- uint8_t abs_bitmask[(ABS_MAX+1)/8];
- memset(abs_bitmask, 0, sizeof(abs_bitmask));
- LOGV("Getting absolute controllers...");
- if (ioctl(fd, EVIOCGBIT(EV_ABS, sizeof(abs_bitmask)), abs_bitmask) >= 0)
- {
- if (test_bit(ABS_X, abs_bitmask) && test_bit(ABS_Y, abs_bitmask)) {
- device->classes |= CLASS_TOUCHSCREEN;
- }
- }
+
+ 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
@@ -658,9 +677,6 @@ int EventHub::open_device(const char *deviceName)
}
#endif
- 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);
-
if ((device->classes&CLASS_KEYBOARD) != 0) {
char devname[101];
char tmpfn[101];
@@ -707,10 +723,27 @@ int EventHub::open_device(const char *deviceName)
sprintf(propName, "hw.keyboards.%u.devname", publicID);
property_set(propName, devname);
- LOGI("New keyboard: publicID=%d device->id=%d devname='%s' propName='%s' keylayout='%s'\n",
+ // '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, devname, 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);
@@ -723,6 +756,25 @@ int EventHub::open_device(const char *deviceName)
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);