From 0b36101d4245fe9e3b98856305fcfa2a6bf7b193 Mon Sep 17 00:00:00 2001
From: Matthias Ringwald <matthias@ringwald.ch>
Date: Tue, 20 Feb 2018 09:28:06 +0100
Subject: [PATCH] hci: reset num_cmd_packets on vendor specific event for CSR
 controllers

---
 src/hci.c | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/src/hci.c b/src/hci.c
index 208ff4b62..f960e2ae8 100644
--- a/src/hci.c
+++ b/src/hci.c
@@ -2293,7 +2293,18 @@ static void event_handler(uint8_t *packet, int size){
                     break;
             }
             break;
-#endif            
+#endif
+        case HCI_EVENT_VENDOR_SPECIFIC:
+            // Vendor specific commands often create vendor specific event instead of num completed packets
+            // To avoid getting stuck as num_cmds_packets is zero, reset it to 1 for controllers with this behaviour
+            switch (hci_stack->manufacturer){
+                case BLUETOOTH_COMPANY_ID_CAMBRIDGE_SILICON_RADIO:
+                    hci_stack->num_cmd_packets = 1;
+                    break;
+                default:
+                    break;
+            }
+            break;
         default:
             break;
     }