From 1d05ad6b22bedc52c5a1b9e44e806aa09fafd16c Mon Sep 17 00:00:00 2001
From: Dan Halbert <halbert@halwitz.org>
Date: Thu, 15 Oct 2020 16:34:19 -0400
Subject: [PATCH] no _bleio for litex; ESP32S2 defines BIT() already

---
 devices/ble_hci/common-hal/_bleio/hci_include/hci.h | 3 +++
 ports/litex/mpconfigport.mk                         | 1 +
 2 files changed, 4 insertions(+)

diff --git a/devices/ble_hci/common-hal/_bleio/hci_include/hci.h b/devices/ble_hci/common-hal/_bleio/hci_include/hci.h
index b6c5ee34bb..5213edbf0f 100644
--- a/devices/ble_hci/common-hal/_bleio/hci_include/hci.h
+++ b/devices/ble_hci/common-hal/_bleio/hci_include/hci.h
@@ -17,7 +17,10 @@
 
 #include "addr.h"
 
+// ESP32S2 build environment defines this already.
+#ifndef BIT
 #define BIT(n)  (1UL << (n))
+#endif
 
 /* Special own address types for LL privacy (used in adv & scan parameters) */
 #define BT_HCI_OWN_ADDR_RPA_OR_PUBLIC  0x02
diff --git a/ports/litex/mpconfigport.mk b/ports/litex/mpconfigport.mk
index 427e9ea841..485a75fde0 100644
--- a/ports/litex/mpconfigport.mk
+++ b/ports/litex/mpconfigport.mk
@@ -16,6 +16,7 @@ CIRCUITPY_ANALOGIO = 0
 CIRCUITPY_AUDIOBUSIO = 0
 CIRCUITPY_AUDIOIO = 0
 CIRCUITPY_BITBANGIO = 0
+CIRCUITPY_BLEIO_HCI = 0
 CIRCUITPY_BOARD = 0
 CIRCUITPY_BUSIO = 0
 CIRCUITPY_COUNTIO = 0