android: Start Android Bluetooth daemon

Start Android Bluetooth daemon from HAL init(). Make sure
that daemon is in "running" state.

diff --git a/android/hal_bluetooth.c b/android/hal_bluetooth.c
index 517f0b4..9bb9dcf 100644 (file)
--- a/android/hal_bluetooth.c
+++ b/android/hal_bluetooth.c
@@ -23,11 +23,16 @@
 #include <hardware/bluetooth.h>
 #include <hardware/bt_sock.h>
 
+#include <cutils/sockets.h>
+#include <cutils/properties.h>
+
 #define LOG_TAG "BlueZ"
 #include <cutils/log.h>
 
 #include "hal.h"
 
+#define SERVICE_NAME "bluetoothd"
+
 bt_callbacks_t *bt_hal_cbacks = NULL;
 
 static bool interface_ready(void)
@@ -35,6 +40,33 @@ static bool interface_ready(void)
        return bt_hal_cbacks != NULL;
 }
 
+static bool start_bt_daemon(void)
+{
+       int tries = 40; /* wait 4 seconds for completion */
+
+       ALOGD(__func__);
+
+       /* Start Android Bluetooth daemon service */
+       property_set("ctl.start", SERVICE_NAME);
+
+       while (tries-- > 0) {
+               char val[PROPERTY_VALUE_MAX];
+
+               if (property_get("init.svc." SERVICE_NAME, val, NULL)) {
+                       if (!strcmp(val, "running")) {
+                               ALOGI("Android BlueZ daemon started");
+                               return true;
+                       }
+               } else {
+                       return false;
+               }
+
+               usleep(100000);
+       }
+
+       return false;
+}
+
 static int init(bt_callbacks_t *callbacks)
 {
        ALOGD(__func__);
@@ -42,10 +74,13 @@ static int init(bt_callbacks_t *callbacks)
        if (interface_ready())
                return BT_STATUS_SUCCESS;
 
-       /* store reference to user callbacks */
-       bt_hal_cbacks = callbacks;
+       if (start_bt_daemon()) {
+               /* TODO: open channel */
+
+               bt_hal_cbacks = callbacks;
 
-       /* TODO: Init here bluezd task */
+               return BT_STATUS_SUCCESS;
+       }
 
        return BT_STATUS_UNSUPPORTED;
 }