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Add callouts for bluedroid to acquire wake locks and set wake alarms.

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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
This commit is contained in:
Sharvil Nanavati 2014-05-30 16:43:38 -07:00 committed by Prerepa Viswanadham
parent 0f0b6d5ccb
commit 3bd8cba787
1 changed files with 24 additions and 0 deletions
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24
include/hardware/bluetooth.h
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@ -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 @@ typedef struct {
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 @@ typedef struct {
/* 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