From 3dfcef31775bf34a01f8ca2dc35c3359dfad14a6 Mon Sep 17 00:00:00 2001
From: Daniel Thompson <daniel@redfelineninja.org.uk>
Date: Tue, 30 Jun 2020 22:58:25 +0100
Subject: [PATCH] nrf: ble_uart: Add scheduler and power management support

Signed-off-by: Daniel Thompson <daniel@redfelineninja.org.uk>
---
 ports/nrf/drivers/bluetooth/ble_uart.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/ports/nrf/drivers/bluetooth/ble_uart.c b/ports/nrf/drivers/bluetooth/ble_uart.c
index c58ebe4a9..3988dc300 100644
--- a/ports/nrf/drivers/bluetooth/ble_uart.c
+++ b/ports/nrf/drivers/bluetooth/ble_uart.c
@@ -98,15 +98,21 @@ static ubluepy_advertise_data_t m_adv_data_uart_service;
 static ubluepy_advertise_data_t m_adv_data_eddystone_url;
 #endif // BLUETOOTH_WEBBLUETOOTH_REPL
 
+static void relax(void) {
+    mp_handle_pending(true);
+    wdt_feed(false);
+    __WFI();
+}
+
 int mp_hal_stdin_rx_chr(void) {
     wdt_feed(false);
 
     while (!ble_uart_enabled()) {
         // wait for connection
-	wdt_feed(false);
+	relax();
     }
     while (isBufferEmpty(mp_rx_ring_buffer)) {
-	wdt_feed(false);
+	relax();
     }
 
     uint8_t byte;