1 files changed, 27 insertions, 0 deletions
diff --git a/FreeRTOS/Demo/RISC-V_RV32_SiFive_HiFive1_FreedomStudio/freedom-metal/src/button.c b/FreeRTOS/Demo/RISC-V_RV32_SiFive_HiFive1_FreedomStudio/freedom-metal/src/button.c
new file mode 100644
index 000000000..649388b3c
--- /dev/null
+++ b/FreeRTOS/Demo/RISC-V_RV32_SiFive_HiFive1_FreedomStudio/freedom-metal/src/button.c
@@ -0,0 +1,27 @@
+/* Copyright 2018 SiFive, Inc */
+/* SPDX-License-Identifier: Apache-2.0 */
+
+#include <metal/button.h>
+#include <metal/machine.h>
+
+struct metal_button* metal_button_get (char *label)
+{
+    int i;
+    struct metal_button *button;
+
+    if ((__METAL_DT_MAX_BUTTONS == 0) || (label == NULL)) {
+        return NULL;
+    }
+
+    for (i = 0; i < __METAL_DT_MAX_BUTTONS; i++) {
+        button = (struct metal_button*)__metal_button_table[i];
+        if (button->vtable->button_exist(button, label)) {
+            return button;
+        }
+    }
+    return NULL;
+}
+
+extern inline struct metal_interrupt*
+    metal_button_interrupt_controller(struct metal_button *button);
+extern inline int metal_button_get_interrupt_id(struct metal_button *button);