Import Mbed OS hard-float snapshot

drivers/source/I2CSlave.cpp

@@ -0,0 +1,80 @@
+/* mbed Microcontroller Library
+ * Copyright (c) 2006-2019 ARM Limited
+ * 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 "drivers/I2CSlave.h"
+
+#if DEVICE_I2CSLAVE
+
+namespace mbed {
+
+I2CSlave::I2CSlave(PinName sda, PinName scl) : _i2c()
+{
+    i2c_init(&_i2c, sda, scl);
+    i2c_frequency(&_i2c, 100000);
+    i2c_slave_mode(&_i2c, 1);
+}
+
+I2CSlave::I2CSlave(const i2c_pinmap_t &static_pinmap) : _i2c()
+{
+    i2c_init_direct(&_i2c, &static_pinmap);
+    i2c_frequency(&_i2c, 100000);
+    i2c_slave_mode(&_i2c, 1);
+}
+
+void I2CSlave::frequency(int hz)
+{
+    i2c_frequency(&_i2c, hz);
+}
+
+void I2CSlave::address(int address)
+{
+    int addr = (address & 0xFF) | 1;
+    i2c_slave_address(&_i2c, 0, addr, 0);
+}
+
+int I2CSlave::receive(void)
+{
+    return i2c_slave_receive(&_i2c);
+}
+
+int I2CSlave::read(char *data, int length)
+{
+    return i2c_slave_read(&_i2c, data, length) != length;
+}
+
+int I2CSlave::read(void)
+{
+    return i2c_byte_read(&_i2c, 0);
+}
+
+int I2CSlave::write(const char *data, int length)
+{
+    return i2c_slave_write(&_i2c, data, length) != length;
+}
+
+int I2CSlave::write(int data)
+{
+    return i2c_byte_write(&_i2c, data);
+}
+
+void I2CSlave::stop(void)
+{
+    i2c_stop(&_i2c);
+}
+
+}
+
+#endif