Merge "FM Radio: Wait for disable to complete" into fm.lnx.2.1-dev

fm_hci/fm_hci.c

@@ -677,6 +677,12 @@ void fm_hci_close(void *arg) {
         return;
     }
     event_notification(hci, HC_EVENT_EXIT);
+    pthread_mutex_lock(&hci->event_lock);
+again:
+    pthread_cond_wait(&hci->event_cond, &hci->event_lock);
+    if (!(ready_events & HC_EVENT_EXIT_DONE))
+        goto again;
+    pthread_mutex_unlock(&hci->event_lock);
 }
 
 int fm_hci_init(fm_hci_hal_t *hci_hal)
@@ -785,6 +791,7 @@ static void fm_hci_exit(void *arg)
     vendor_close(hci);
     pthread_cond_broadcast(&hci->event_cond);
     pthread_cond_broadcast(&hci->cmd_credits_cond);
+    event_notification(hci, HC_EVENT_EXIT_DONE);
     stop_rx_thread(hci);
     stop_tx_thread(hci);
     ALOGD("Tx, Rx Threads join done");

fm_hci/fm_hci.h

@@ -46,6 +46,7 @@
 #define HC_EVENT_LPM_IDLE_TIMEOUT      0x0100
 #define HC_EVENT_EXIT                  0x0200
 #define HC_EVENT_EPILOG                0x0400
+#define HC_EVENT_EXIT_DONE             0x8000
 
 #define MAX_FM_CMD_CNT                 100
 #define FM_CMD                         0x11