Import Mbed OS hard-float snapshot

connectivity/drivers/802.15.4_RF/stm-s2lp-rf-driver/source/at24mac_s2lp.cpp

@@ -0,0 +1,72 @@
+/*
+ * Copyright (c) 2019-2019 ARM Limited. All rights reserved.
+ * SPDX-License-Identifier: Apache-2.0
+ * 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.
+ */
+#include "NanostackRfPhys2lp.h"
+#include "at24mac_s2lp.h"
+
+
+#if DEVICE_I2C
+#ifdef AT24MAC
+
+/* Device addressing */
+#define AT24MAC_EEPROM_ADDRESS      (0x0A<<4)
+#define AT24MAC_RW_PROTECT_ADDRESS  (0x06<<4)
+#define AT24MAC_SERIAL_ADDRESS      (0x0B<<4)
+
+/* Known memory blocks */
+#define AT24MAC_SERIAL_OFFSET   (0x80)
+#define AT24MAC_EUI64_OFFSET    (0x98)
+#define AT24MAC_EUI48_OFFSET    (0x9A)
+
+#define SERIAL_LEN 16
+#define EUI64_LEN 8
+#define EUI48_LEN 6
+
+using namespace mbed;
+
+AT24Mac_s2lp::AT24Mac_s2lp(PinName sda, PinName scl) : _i2c(sda, scl)
+{
+    // Do nothing
+}
+
+int AT24Mac_s2lp::read_serial(void *buf)
+{
+    char offset = AT24MAC_SERIAL_OFFSET;
+    if (_i2c.write(AT24MAC_SERIAL_ADDRESS, &offset, 1, true)) {
+        return -1;    //No ACK
+    }
+    return _i2c.read(AT24MAC_SERIAL_ADDRESS, (char *)buf, SERIAL_LEN);
+}
+
+int AT24Mac_s2lp::read_eui64(void *buf)
+{
+    char offset = AT24MAC_EUI64_OFFSET;
+    if (_i2c.write(AT24MAC_SERIAL_ADDRESS, &offset, 1, true)) {
+        return -1;    //No ACK
+    }
+    return _i2c.read(AT24MAC_SERIAL_ADDRESS, (char *)buf, EUI64_LEN);
+}
+
+int AT24Mac_s2lp::read_eui48(void *buf)
+{
+    char offset = AT24MAC_EUI48_OFFSET;
+    if (_i2c.write(AT24MAC_SERIAL_ADDRESS, &offset, 1, true)) {
+        return -1;    //No ACK
+    }
+    return _i2c.read(AT24MAC_SERIAL_ADDRESS, (char *)buf, EUI48_LEN);
+}
+
+#endif /* AT24MAC */
+#endif /* DEVICE_I2C */