Import Mbed OS hard-float snapshot

connectivity/drivers/emac/TARGET_NUVOTON_EMAC/numaker_eth_hal.h

@@ -0,0 +1,55 @@
+/*
+ * Copyright (c) 2018 Nuvoton Technology Corp. 
+ * Copyright (c) 2018 ARM Limited
+ *
+ * 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.
+ *
+ * Description:   NuMaker EMAC HAL header file
+ */
+
+#ifndef  NUMAKER_ETH_HAL_
+#define  NUMAKER_ETH_HAL_
+ 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <ctype.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+
+#ifdef NU_TRACE
+#define NU_DEBUGF(x) { printf x; }
+#else
+#define NU_DEBUGF(x)
+#endif
+
+typedef void (* eth_callback_t) (char, void*);
+void mbed_mac_address(char *mac);
+void numaker_eth_init(uint8_t *mac_addr);
+void numaker_eth_trigger_rx(void);
+int numaker_eth_get_rx_buf(uint16_t *len, uint8_t **buf);
+uint8_t *numaker_eth_get_tx_buf(void);
+void numaker_eth_trigger_tx(uint16_t length, void *p);
+int numaker_eth_link_ok(void);
+void numaker_eth_set_cb(eth_callback_t eth_cb, void *userData);
+void numaker_set_mac_addr(uint8_t *addr);
+void numaker_eth_enable_interrupts(void);
+void numaker_eth_disable_interrupts(void);       
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* NUMAKER_ETH_HAL_ */