Introduce the lwip-interface into the core mbed repo

features/net/FEATURE_IPV4/lwip-interface/EthernetInterface.cpp

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+/* LWIP implementation of NetworkInterfaceAPI
+ * Copyright (c) 2015 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.
+ */
+
+#include "EthernetInterface.h"
+#include "lwip_stack.h"
+
+
+/* Interface implementation */
+int EthernetInterface::connect()
+{
+    return lwip_bringup();
+}
+
+int EthernetInterface::disconnect()
+{
+    lwip_bringdown();
+    return 0;
+}
+
+const char *EthernetInterface::get_ip_address()
+{
+    return lwip_get_ip_address();
+}
+
+const char *EthernetInterface::get_mac_address()
+{
+    return lwip_get_mac_address();
+}
+
+NetworkStack *EthernetInterface::get_stack()
+{
+    return nsapi_create_stack(&lwip_stack);
+}

features/net/FEATURE_IPV4/lwip-interface/EthernetInterface.h

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+/* LWIP implementation of NetworkInterfaceAPI
+ * Copyright (c) 2015 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.
+ */
+
+#ifndef ETHERNET_INTERFACE_H
+#define ETHERNET_INTERFACE_H
+
+#include "nsapi.h"
+#include "rtos.h"
+#include "lwip/netif.h"
+
+// Forward declaration
+class NetworkStack;
+
+
+/** EthernetInterface class
+ *  Implementation of the NetworkStack for LWIP
+ */
+class EthernetInterface : public EthInterface
+{
+public:
+    /** Start the interface
+     *  @return             0 on success, negative on failure
+     */
+    virtual int connect();
+
+    /** Stop the interface
+     *  @return             0 on success, negative on failure
+     */
+    virtual int disconnect();
+
+    /** Get the internally stored IP address
+     *  @return             IP address of the interface or null if not yet connected
+     */
+    virtual const char *get_ip_address();
+
+    /** Get the internally stored MAC address
+     *  @return             MAC address of the interface
+     */
+    virtual const char *get_mac_address();
+
+protected:
+    /** Provide access to the underlying stack
+     *
+     *  @return The underlying network stack 
+     */
+    virtual NetworkStack *get_stack();
+};
+
+
+#endif

features/net/FEATURE_IPV4/lwip-interface/eth_arch.h

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+/* EthernetInterface.h */
+/* Copyright (C) 2012 mbed.org, MIT License
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
+ * and associated documentation files (the "Software"), to deal in the Software without restriction,
+ * including without limitation the rights to use, copy, modify, merge, publish, distribute,
+ * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all copies or
+ * substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
+ * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+// Architecture specific Ethernet interface
+// Must be implemented by each target
+
+#ifndef ETHARCH_H_
+#define ETHARCH_H_
+
+#include "lwip/netif.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+void eth_arch_enable_interrupts(void);
+void eth_arch_disable_interrupts(void);
+err_t eth_arch_enetif_init(struct netif *netif);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // #ifndef ETHARCHINTERFACE_H_
+

features/net/FEATURE_IPV4/lwip-interface/lwip-eth/arch/TARGET_Freescale/hardware_init_MK64F12.c

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+/*
+ * Copyright (c) 2013 - 2014, Freescale Semiconductor, Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * o Redistributions of source code must retain the above copyright notice, this list
+ *   of conditions and the following disclaimer.
+ *
+ * o Redistributions in binary form must reproduce the above copyright notice, this
+ *   list of conditions and the following disclaimer in the documentation and/or
+ *   other materials provided with the distribution.
+ *
+ * o Neither the name of Freescale Semiconductor, Inc. nor the names of its
+ *   contributors may be used to endorse or promote products derived from this
+ *   software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "fsl_port.h"
+
+/*******************************************************************************
+ * Code
+ ******************************************************************************/
+void k64f_init_eth_hardware(void)
+{
+    port_pin_config_t configENET = {0};
+
+    /* Disable MPU. */
+    MPU->CESR &= ~MPU_CESR_VLD_MASK;
+
+    CLOCK_EnableClock(kCLOCK_PortC);
+    CLOCK_EnableClock(kCLOCK_PortB);
+    /* Affects PORTC_PCR16 register */
+    PORT_SetPinMux(PORTC, 16u, kPORT_MuxAlt4);
+    /* Affects PORTC_PCR17 register */
+    PORT_SetPinMux(PORTC, 17u, kPORT_MuxAlt4);
+    /* Affects PORTC_PCR18 register */
+    PORT_SetPinMux(PORTC, 18u, kPORT_MuxAlt4);
+    /* Affects PORTC_PCR19 register */
+    PORT_SetPinMux(PORTC, 19u, kPORT_MuxAlt4);
+    /* Affects PORTB_PCR1 register */
+    PORT_SetPinMux(PORTB, 1u, kPORT_MuxAlt4);
+
+    configENET.openDrainEnable = kPORT_OpenDrainEnable;
+    configENET.mux = kPORT_MuxAlt4;
+    configENET.pullSelect = kPORT_PullUp;
+    /* Ungate the port clock */
+    CLOCK_EnableClock(kCLOCK_PortA);
+    /* Affects PORTB_PCR0 register */
+    PORT_SetPinConfig(PORTB, 0u, &configENET);
+
+    /* Affects PORTA_PCR13 register */
+    PORT_SetPinMux(PORTA, 13u, kPORT_MuxAlt4);
+    /* Affects PORTA_PCR12 register */
+    PORT_SetPinMux(PORTA, 12u, kPORT_MuxAlt4);
+    /* Affects PORTA_PCR14 register */
+    PORT_SetPinMux(PORTA, 14u, kPORT_MuxAlt4);
+    /* Affects PORTA_PCR5 register */
+    PORT_SetPinMux(PORTA, 5u, kPORT_MuxAlt4);
+    /* Affects PORTA_PCR16 register */
+    PORT_SetPinMux(PORTA, 16u, kPORT_MuxAlt4);
+    /* Affects PORTA_PCR17 register */
+    PORT_SetPinMux(PORTA, 17u, kPORT_MuxAlt4);
+    /* Affects PORTA_PCR15 register */
+    PORT_SetPinMux(PORTA, 15u, kPORT_MuxAlt4);
+    /* Affects PORTA_PCR28 register */
+    PORT_SetPinMux(PORTA, 28u, kPORT_MuxAlt4);
+
+    /* Select the Ethernet timestamp clock source */
+    CLOCK_SetEnetTime0Clock(0x2);
+}
+
+/*******************************************************************************
+ * EOF
+ ******************************************************************************/
+
+