Merge "Add ability to have a callback when wakeups happen." (733aebd3) · Commits · e / os / android_system_core

libsuspend/autosuspend_wakeup_count.c

+16 −0

Original line number	Diff line number	Diff line
		@@ -25,6 +25,7 @@
		#include <unistd.h>

		#define LOG_TAG "libsuspend"
		//#define LOG_NDEBUG 0
		#include <cutils/log.h>

		#include "autosuspend_ops.h"
		@@ -37,6 +38,7 @@ static int wakeup_count_fd;
		static pthread_t suspend_thread;
		static sem_t suspend_lockout;
		static const char *sleep_state = "mem";
		static void (*wakeup_func)(void) = NULL;

		static void suspend_thread_func(void arg __attribute__((unused)))
		{
		@@ -80,6 +82,11 @@ static void suspend_thread_func(void arg __attribute__((unused)))
		if (ret < 0) {
		strerror_r(errno, buf, sizeof(buf));
		ALOGE("Error writing to %s: %s\n", SYS_POWER_STATE, buf);
		} else {
		void (*func)(void) = wakeup_func;
		if (func != NULL) {
		(*func)();
		}
		}
		}

		@@ -131,6 +138,15 @@ static int autosuspend_wakeup_count_disable(void)
		return ret;
		}

		void set_wakeup_callback(void (*func)(void))
		{
		if (wakeup_func != NULL) {
		ALOGE("Duplicate wakeup callback applied, keeping original");
		return;
		}
		wakeup_func = func;
		}

		struct autosuspend_ops autosuspend_wakeup_count_ops = {
		.enable = autosuspend_wakeup_count_enable,
		.disable = autosuspend_wakeup_count_disable,

+7 −0

Original line number	Diff line number	Diff line
		@@ -43,6 +43,13 @@ int autosuspend_enable(void);
		*/
		int autosuspend_disable(void);

		/*
		* set_wakeup_callback
		*
		* Set a function to be called each time the device wakes up from suspend.
		*/
		void set_wakeup_callback(void (*func)(void));

		__END_DECLS

		#endif