From 98664e99ee56bcad456b1a2809a2e4d73c1e43b7 Mon Sep 17 00:00:00 2001
From: George Oikonomou <george@contiki-ng.org>
Date: Wed, 22 Nov 2017 22:51:25 +0000
Subject: [PATCH] Implement master interrupt manipulation (CC2538)

---
 arch/cpu/cc2538/Makefile.cc2538 |  2 +-
 arch/cpu/cc2538/int-master.c    | 82 +++++++++++++++++++++++++++++++++
 2 files changed, 83 insertions(+), 1 deletion(-)
 create mode 100644 arch/cpu/cc2538/int-master.c

diff --git a/arch/cpu/cc2538/Makefile.cc2538 b/arch/cpu/cc2538/Makefile.cc2538
index f4c77c15d..18213ca74 100644
--- a/arch/cpu/cc2538/Makefile.cc2538
+++ b/arch/cpu/cc2538/Makefile.cc2538
@@ -19,7 +19,7 @@ CONTIKI_CPU_SOURCEFILES += nvic.c sys-ctrl.c gpio.c ioc.c spi.c adc.c
 CONTIKI_CPU_SOURCEFILES += crypto.c aes.c ecb.c cbc.c ctr.c cbc-mac.c gcm.c
 CONTIKI_CPU_SOURCEFILES += ccm.c sha256.c
 CONTIKI_CPU_SOURCEFILES += cc2538-aes-128.c cc2538-ccm-star.c
-CONTIKI_CPU_SOURCEFILES += cc2538-rf.c udma.c lpm.c
+CONTIKI_CPU_SOURCEFILES += cc2538-rf.c udma.c lpm.c int-master.c
 CONTIKI_CPU_SOURCEFILES += pka.c bignum-driver.c ecc-driver.c ecc-algorithm.c
 CONTIKI_CPU_SOURCEFILES += ecc-curve.c
 CONTIKI_CPU_SOURCEFILES += dbg.c ieee-addr.c
diff --git a/arch/cpu/cc2538/int-master.c b/arch/cpu/cc2538/int-master.c
new file mode 100644
index 000000000..57a031667
--- /dev/null
+++ b/arch/cpu/cc2538/int-master.c
@@ -0,0 +1,82 @@
+/*
+ * Copyright (c) 2017, George Oikonomou - http://www.spd.gr
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the copyright holder nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+/*---------------------------------------------------------------------------*/
+/**
+ * \addtogroup cc2538
+ * @{
+ *
+ * \defgroup cc2538-interrupts CC2538 master interrupt manipulation
+ *
+ * Master interrupt manipulation routines for the CC2538 CPU
+ *
+ * @{
+ *
+ * \file
+ * Master interrupt manipulation implementation for the TI CC2538
+ */
+/*---------------------------------------------------------------------------*/
+#include "contiki.h"
+#include "sys/int-master.h"
+
+#include <stdbool.h>
+/*---------------------------------------------------------------------------*/
+void
+int_master_enable(void)
+{
+  __enable_irq();
+}
+/*---------------------------------------------------------------------------*/
+int_master_status_t
+int_master_read_and_disable(void)
+{
+  int_master_status_t primask = __get_PRIMASK();
+
+  __disable_irq();
+
+  return primask;
+}
+/*---------------------------------------------------------------------------*/
+void
+int_master_status_set(int_master_status_t status)
+{
+  __set_PRIMASK(status);
+}
+/*---------------------------------------------------------------------------*/
+bool
+int_master_is_enabled(void)
+{
+  return __get_PRIMASK() ? false : true;
+}
+/*---------------------------------------------------------------------------*/
+/**
+ * @}
+ * @}
+ */