Add callouts for bluedroid to acquire wake locks and set wake alarms.
Since bluedroid is running outside of system_server, it does not have
the necessary Linux capabilities or filesystem permissions to access
/sys/power/wake_* and /dev/alarm (or any other wake alarm). This change
provides a mechanism by which bluedroid can call back up into Java code
and use the standard Android APIs to get wake locks / wake alarms.
Change-Id: I714fd394224d38da5ff0f82de5559599d522010b
Conflicts:
include/hardware/bluetooth.h
diff --git a/include/hardware/bluetooth.h b/include/hardware/bluetooth.h
index 41a1167..56b7367 100644
--- a/include/hardware/bluetooth.h
+++ b/include/hardware/bluetooth.h
@@ -17,6 +17,7 @@
#ifndef ANDROID_INCLUDE_BLUETOOTH_H
#define ANDROID_INCLUDE_BLUETOOTH_H
+#include <stdbool.h>
#include <stdint.h>
#include <sys/cdefs.h>
#include <sys/types.h>
@@ -360,6 +361,24 @@
le_test_mode_callback le_test_mode_cb;
} bt_callbacks_t;
+typedef void (*alarm_cb)(void *data);
+typedef bool (*set_wake_alarm_callout)(uint64_t delay_millis, bool should_wake, alarm_cb cb, void *data);
+typedef int (*acquire_wake_lock_callout)(const char *lock_name);
+typedef int (*release_wake_lock_callout)(const char *lock_name);
+
+/** The set of functions required by bluedroid to set wake alarms and
+ * grab wake locks. This struct is passed into the stack through the
+ * |set_os_callouts| function on |bt_interface_t|.
+ */
+typedef struct {
+ /* set to sizeof(bt_os_callouts_t) */
+ size_t size;
+
+ set_wake_alarm_callout set_wake_alarm;
+ acquire_wake_lock_callout acquire_wake_lock;
+ release_wake_lock_callout release_wake_lock;
+} bt_os_callouts_t;
+
/** NOTE: By default, no profiles are initialized at the time of init/enable.
* Whenever the application invokes the 'init' API of a profile, then one of
* the following shall occur:
@@ -471,6 +490,11 @@
/* enable or disable bluetooth HCI snoop log */
int (*config_hci_snoop_log)(uint8_t enable);
+
+ /** Sets the OS call-out functions that bluedroid needs for alarms and wake locks.
+ * This should be called immediately after a successful |init|.
+ */
+ int (*set_os_callouts)(bt_os_callouts_t *callouts);
} bt_interface_t;
/** TODO: Need to add APIs for Service Discovery, Service authorization and