1 files changed, 110 insertions, 0 deletions
diff --git a/os/hal/ports/NRF5/NRF51822/hal_ext_lld_isr.c b/os/hal/ports/NRF5/NRF51822/hal_ext_lld_isr.c
new file mode 100644
index 0000000..ca8e24d
--- /dev/null
+++ b/os/hal/ports/NRF5/NRF51822/hal_ext_lld_isr.c
@@ -0,0 +1,110 @@
+/*
+    Copyright (C) 2015 Stephen Caudle
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+*/
+
+/**
+ * @file    NRF51x22/ext_lld_isr.h
+ * @brief   NRF51x22 EXT subsystem low level driver ISR code.
+ *
+ * @addtogroup EXT
+ * @{
+ */
+
+#include "hal.h"
+
+#if HAL_USE_EXT || defined(__DOXYGEN__)
+
+#include "hal_ext_lld_isr.h"
+
+/*===========================================================================*/
+/* Driver local definitions.                                                 */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver exported variables.                                                */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver local variables.                                                   */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver local functions.                                                   */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver interrupt handlers.                                                */
+/*===========================================================================*/
+
+/**
+ * @brief   EXTI[0]...EXTI[1] interrupt handler.
+ *
+ * @isr
+ */
+OSAL_IRQ_HANDLER(Vector58) {
+
+  OSAL_IRQ_PROLOGUE();
+
+  if (NRF_GPIOTE->EVENTS_IN[0])
+  {
+    NRF_GPIOTE->EVENTS_IN[0] = 0;
+    EXTD1.config->channels[0].cb(&EXTD1, 0);
+  }
+  if (NRF_GPIOTE->EVENTS_IN[1])
+  {
+    NRF_GPIOTE->EVENTS_IN[1] = 0;
+    EXTD1.config->channels[1].cb(&EXTD1, 1);
+  }
+  if (NRF_GPIOTE->EVENTS_IN[2])
+  {
+    NRF_GPIOTE->EVENTS_IN[2] = 0;
+    EXTD1.config->channels[2].cb(&EXTD1, 2);
+  }
+  if (NRF_GPIOTE->EVENTS_IN[3])
+  {
+    NRF_GPIOTE->EVENTS_IN[3] = 0;
+    EXTD1.config->channels[3].cb(&EXTD1, 3);
+  }
+
+  OSAL_IRQ_EPILOGUE();
+}
+
+/*===========================================================================*/
+/* Driver exported functions.                                                */
+/*===========================================================================*/
+
+/**
+ * @brief   Enables EXTI IRQ sources.
+ *
+ * @notapi
+ */
+void ext_lld_exti_irq_enable(void) {
+
+  nvicEnableVector(GPIOTE_IRQn, NRF5_EXT_GPIOTE_IRQ_PRIORITY);
+}
+
+/**
+ * @brief   Disables EXTI IRQ sources.
+ *
+ * @notapi
+ */
+void ext_lld_exti_irq_disable(void) {
+
+  nvicDisableVector(GPIOTE_IRQn);
+}
+
+#endif /* HAL_USE_EXT */
+
+/** @} */