mirror of https://github.com/ARMmbed/mbed-os.git
Add C027Interface
Christopher Haster
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a5800ef975
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467a31f263
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/* C027 implementation of NetworkInterfaceAPI
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* Copyright (c) 2015 ARM Limited
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "C027Interface.h"
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#include "mbed.h"
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// C027Interface implementation
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C027Interface::C027Interface(const char *simpin, bool debug)
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: _debug(debug)
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{
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strcpy(_pin, simpin);
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}
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int C027Interface::connect(const char *apn, const char *username, const char *password)
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{
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// create the modem
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_mdm = new MDMSerial;
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if (_debug) {
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_mdm->setDebug(4);
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} else {
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_mdm->setDebug(0);
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}
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// initialize the modem
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MDMParser::DevStatus devStatus = {};
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MDMParser::NetStatus netStatus = {};
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bool mdmOk = _mdm->init(_pin, &devStatus);
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if (_debug) {
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_mdm->dumpDevStatus(&devStatus);
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}
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if (mdmOk) {
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// wait until we are connected
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mdmOk = _mdm->registerNet(&netStatus);
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if (_debug) {
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_mdm->dumpNetStatus(&netStatus);
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}
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}
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if (mdmOk) {
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// join the internet connection
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MDMParser::IP ip = _mdm->join(apn, username, password);
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_ip_address.set_ip_bytes(&ip, NSAPI_IPv4);
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mdmOk = (ip != NOIP);
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}
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return mdmOk ? 0 : NSAPI_ERROR_DEVICE_ERROR;
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}
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int C027Interface::disconnect()
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{
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if (!_mdm->disconnect()) {
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return NSAPI_ERROR_DEVICE_ERROR;
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}
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return 0;
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}
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const char *C027Interface::get_ip_address()
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{
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return _ip_address.get_ip_address();
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}
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const char *C027Interface::get_mac_address()
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{
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return 0;
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}
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struct c027_socket {
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int socket;
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MDMParser::IpProtocol proto;
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MDMParser::IP ip;
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int port;
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};
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int C027Interface::socket_open(void **handle, nsapi_protocol_t proto)
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{
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MDMParser::IpProtocol mdmproto = (proto == NSAPI_UDP) ? MDMParser::IPPROTO_UDP : MDMParser::IPPROTO_TCP;
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int fd = _mdm->socketSocket(mdmproto);
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if (fd < 0) {
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return NSAPI_ERROR_NO_SOCKET;
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}
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_mdm->socketSetBlocking(fd, 10000);
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struct c027_socket *socket = new struct c027_socket;
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if (!socket) {
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return NSAPI_ERROR_NO_SOCKET;
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}
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socket->socket = fd;
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socket->proto = mdmproto;
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*handle = socket;
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return 0;
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}
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int C027Interface::socket_close(void *handle)
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{
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struct c027_socket *socket = (struct c027_socket *)handle;
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_mdm->socketFree(socket->socket);
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delete socket;
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return 0;
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}
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int C027Interface::socket_bind(void *handle, const SocketAddress &address)
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{
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return NSAPI_ERROR_UNSUPPORTED;
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}
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int C027Interface::socket_listen(void *handle, int backlog)
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{
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return NSAPI_ERROR_UNSUPPORTED;
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}
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int C027Interface::socket_connect(void *handle, const SocketAddress &addr)
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{
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struct c027_socket *socket = (struct c027_socket *)handle;
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if (!_mdm->socketConnect(socket->socket, addr.get_ip_address(), addr.get_port())) {
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return NSAPI_ERROR_DEVICE_ERROR;
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}
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return 0;
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}
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int C027Interface::socket_accept(void **handle, void *server)
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{
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return NSAPI_ERROR_UNSUPPORTED;
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}
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int C027Interface::socket_send(void *handle, const void *data, unsigned size)
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{
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struct c027_socket *socket = (struct c027_socket *)handle;
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int sent = _mdm->socketSend(socket->socket, (const char *)data, size);
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if (sent == SOCKET_ERROR) {
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return NSAPI_ERROR_DEVICE_ERROR;
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}
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return sent;
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}
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int C027Interface::socket_recv(void *handle, void *data, unsigned size)
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{
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struct c027_socket *socket = (struct c027_socket *)handle;
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if (!_mdm->socketReadable(socket->socket)) {
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return NSAPI_ERROR_WOULD_BLOCK;
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}
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int recv = _mdm->socketRecv(socket->socket, (char *)data, size);
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if (recv == SOCKET_ERROR) {
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return NSAPI_ERROR_DEVICE_ERROR;
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}
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return recv;
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}
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int C027Interface::socket_sendto(void *handle, const SocketAddress &addr, const void *data, unsigned size)
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{
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struct c027_socket *socket = (struct c027_socket *)handle;
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int sent = _mdm->socketSendTo(socket->socket,
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*(MDMParser::IP *)addr.get_ip_bytes(), addr.get_port(),
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(const char *)data, size);
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if (sent == SOCKET_ERROR) {
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return NSAPI_ERROR_DEVICE_ERROR;
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}
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return sent;
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}
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int C027Interface::socket_recvfrom(void *handle, SocketAddress *addr, void *data, unsigned size)
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{
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struct c027_socket *socket = (struct c027_socket *)handle;
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if (!_mdm->socketReadable(socket->socket)) {
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return NSAPI_ERROR_WOULD_BLOCK;
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}
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MDMParser::IP ip;
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int port;
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int recv = _mdm->socketRecvFrom(socket->socket, &ip, &port, (char *)data, size);
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if (recv == SOCKET_ERROR) {
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return NSAPI_ERROR_DEVICE_ERROR;
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}
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if (addr) {
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addr->set_ip_bytes(&ip, NSAPI_IPv4);
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addr->set_port(port);
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}
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return recv;
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}
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void C027Interface::socket_attach(void *handle, void (*callback)(void *), void *data)
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{
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}
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@ -0,0 +1,168 @@
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/* C027 implementation of NetworkInterfaceAPI
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* Copyright (c) 2015 ARM Limited
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef C027_INTERFACE_H
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#define C027_INTERFACE_H
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#include "CellularInterface.h"
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#include "MDM.h"
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/** C027Interface class
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* Implementation of the NetworkInterface for C027
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*/
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class C027Interface : public NetworkStack, public CellularInterface
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{
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public:
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/** C027Interfacelifetime
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* @param simpin Optional PIN for the SIM
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* @param debug Enable debugging
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*/
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C027Interface(const char *simpin=0, bool debug=false);
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/** Start the interface
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*
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* @param apn Optional name of the network to connect to
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* @param username Optional username for your APN
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* @param password Optional password for your APN
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* @return 0 on success, negative error code on failure
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*/
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virtual int connect(const char *apn = 0, const char *username = 0, const char *password = 0);
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/** Stop the interface
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* @return 0 on success, negative on failure
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*/
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virtual int disconnect();
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/** Get the internally stored IP address
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* @return IP address of the interface or null if not yet connected
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*/
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virtual const char *get_ip_address();
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/** Get the internally stored MAC address
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* @return MAC address of the interface
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*/
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virtual const char *get_mac_address();
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protected:
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/** Open a socket
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* @param handle Handle in which to store new socket
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* @param proto Type of socket to open, NSAPI_TCP or NSAPI_UDP
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* @return 0 on success, negative on failure
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*/
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virtual int socket_open(void **handle, nsapi_protocol_t proto);
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/** Close the socket
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* @param handle Socket handle
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* @return 0 on success, negative on failure
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* @note On failure, any memory associated with the socket must still
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* be cleaned up
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*/
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virtual int socket_close(void *handle);
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/** Bind a server socket to a specific port
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* @param handle Socket handle
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* @param address Local address to listen for incoming connections on
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* @return 0 on success, negative on failure.
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*/
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virtual int socket_bind(void *handle, const SocketAddress &address);
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/** Start listening for incoming connections
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* @param handle Socket handle
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* @param backlog Number of pending connections that can be queued up at any
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* one time [Default: 1]
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* @return 0 on success, negative on failure
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*/
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virtual int socket_listen(void *handle, int backlog);
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/** Connects this TCP socket to the server
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* @param handle Socket handle
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* @param address SocketAddress to connect to
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* @return 0 on success, negative on failure
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*/
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virtual int socket_connect(void *handle, const SocketAddress &address);
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/** Accept a new connection.
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* @param handle Handle in which to store new socket
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* @param server Socket handle to server to accept from
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* @return 0 on success, negative on failure
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* @note This call is not-blocking, if this call would block, must
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* immediately return NSAPI_ERROR_WOULD_WAIT
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*/
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virtual int socket_accept(void **handle, void *server);
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/** Send data to the remote host
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* @param handle Socket handle
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* @param data The buffer to send to the host
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* @param size The length of the buffer to send
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* @return Number of written bytes on success, negative on failure
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* @note This call is not-blocking, if this call would block, must
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* immediately return NSAPI_ERROR_WOULD_WAIT
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*/
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virtual int socket_send(void *handle, const void *data, unsigned size);
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/** Receive data from the remote host
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* @param handle Socket handle
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* @param data The buffer in which to store the data received from the host
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* @param size The maximum length of the buffer
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* @return Number of received bytes on success, negative on failure
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* @note This call is not-blocking, if this call would block, must
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* immediately return NSAPI_ERROR_WOULD_WAIT
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*/
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virtual int socket_recv(void *handle, void *data, unsigned size);
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/** Send a packet to a remote endpoint
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* @param handle Socket handle
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* @param address The remote SocketAddress
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* @param data The packet to be sent
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* @param size The length of the packet to be sent
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* @return the number of written bytes on success, negative on failure
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* @note This call is not-blocking, if this call would block, must
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* immediately return NSAPI_ERROR_WOULD_WAIT
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*/
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virtual int socket_sendto(void *handle, const SocketAddress &address, const void *data, unsigned size);
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/** Receive a packet from a remote endpoint
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* @param handle Socket handle
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* @param address Destination for the remote SocketAddress or null
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* @param buffer The buffer for storing the incoming packet data
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* If a packet is too long to fit in the supplied buffer,
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* excess bytes are discarded
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* @param size The length of the buffer
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* @return the number of received bytes on success, negative on failure
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* @note This call is not-blocking, if this call would block, must
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* immediately return NSAPI_ERROR_WOULD_WAIT
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*/
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virtual int socket_recvfrom(void *handle, SocketAddress *address, void *buffer, unsigned size);
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/** Register a callback on state change of the socket
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* @param handle Socket handle
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* @param callback Function to call on state change
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* @param data Argument to pass to callback
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* @note Callback may be called in an interrupt context.
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*/
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virtual void socket_attach(void *handle, void (*callback)(void *), void *data);
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private:
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// Modem object
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bool _debug;
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MDMSerial *_mdm;
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SocketAddress _ip_address;
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char _mac_address[NSAPI_MAC_SIZE];
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char _pin[sizeof "1234"];
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};
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#endif
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@ -0,0 +1 @@
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https://developer.mbed.org/teams/NetworkSocketAPI/code/C027_Support/#596bcb599ac1
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