From 0ef1ee6df5423cb5684b56266da5c865e606b0d4 Mon Sep 17 00:00:00 2001
From: Simon Duquennoy <simon.duquennoy@ri.se>
Date: Wed, 3 Oct 2018 14:16:54 +0200
Subject: [PATCH] cc1200: make pending_packet work even when interrupt handler
 was not called

---
 arch/dev/cc1200/cc1200.c | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/arch/dev/cc1200/cc1200.c b/arch/dev/cc1200/cc1200.c
index 42b9fe092..f7387f659 100644
--- a/arch/dev/cc1200/cc1200.c
+++ b/arch/dev/cc1200/cc1200.c
@@ -1026,9 +1026,16 @@ receiving_packet(void)
 static int
 pending_packet(void)
 {
+  int ret;
+  ret = ((rx_pkt_len != 0) ? 1 : 0);
+  if(ret == 0 && !SPI_IS_LOCKED()) {
+    LOCK_SPI();
+    ret = (single_read(CC1200_NUM_RXBYTES) > 0);
+    RELEASE_SPI();
+  }
 
-  INFO("RF: Pending (%d)\n", ((rx_pkt_len != 0) ? 1 : 0));
-  return (rx_pkt_len != 0) ? 1 : 0;
+  INFO("RF: Pending (%d)\n", ret);
+  return ret;
 
 }
 /*---------------------------------------------------------------------------*/