android hdmi开关,android4.0 系统层hdmi开关

+#include namespace android {

+/* cjcheng add for hdmi on start */

+void hdmi_power_on(void)

+{

+ char hdmi_status[4];

+ property_get("persist.sys.output_mode", hdmi_status, NULL);

+ if (strcmp(hdmi_status, "2") == 0)

+ property_set("persist.sys.output_mode", "1");

+}

+/* cjcheng add for hdmi on start */

+

// USB鼠标按键唤醒HDMI

void CursorButtonAccumulator::process(const RawEvent* rawEvent) {

if (rawEvent->type == EV_KEY) {

switch (rawEvent->scanCode) {

case BTN_LEFT:

mBtnLeft = rawEvent->value;

break;

case BTN_RIGHT:

mBtnRight = rawEvent->value;

break;

case BTN_MIDDLE:

mBtnMiddle = rawEvent->value;

break;

case BTN_BACK:

mBtnBack = rawEvent->value;

break;

case BTN_SIDE:

mBtnSide = rawEvent->value;

break;

case BTN_FORWARD:

mBtnForward = rawEvent->value;

break;

case BTN_EXTRA:

mBtnExtra = rawEvent->value;

break;

case BTN_TASK:

mBtnTask = rawEvent->value;

break;

}

+ hdmi_power_on(); // cjcheng add for hdmi on

}

}

// USB鼠标移动唤醒HDMI

void CursorMotionAccumulator::process(const RawEvent* rawEvent) {

if (rawEvent->type == EV_REL) {

switch (rawEvent->scanCode) {

case REL_X:

mRelX = rawEvent->value;

break;

case REL_Y:

mRelY = rawEvent->value;

break;

}

+ hdmi_power_on(); // cjcheng add for hdmi on

}

}

// USB键盘唤醒HDMI

void KeyboardInputMapper::processKey(nsecs_t when, bool down, int32_t keyCode,

int32_t scanCode, uint32_t policyFlags) {

if (down) {

// Rotate key codes according to orientation if needed.

if (mParameters.orientationAware && mParameters.associatedDisplayId >= 0) {

keyCode = rotateKeyCode(keyCode, mOrientation);

}

+ hdmi_power_on(); // cjcheng add hdmi on

……

}

}

}