Add ability to have a callback when wakeups happen.
Change-Id: I02ff0e035bf8a97bd1a3b6b1699181fc3a137d79
diff --git a/libsuspend/autosuspend_wakeup_count.c b/libsuspend/autosuspend_wakeup_count.c
index a88e677..7483a8f 100644
--- a/libsuspend/autosuspend_wakeup_count.c
+++ b/libsuspend/autosuspend_wakeup_count.c
@@ -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 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 @@
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 @@
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,
diff --git a/libsuspend/include/suspend/autosuspend.h b/libsuspend/include/suspend/autosuspend.h
index f56fc6a..10e3d27 100644
--- a/libsuspend/include/suspend/autosuspend.h
+++ b/libsuspend/include/suspend/autosuspend.h
@@ -43,6 +43,13 @@
*/
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