emw3162 driver for mbed os 5
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Diff: emw3162/EMW3162.h
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- 0:2d5090e1ceb4
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- 2:fb6251306b21
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/emw3162/EMW3162.h Tue Nov 01 02:18:18 2016 +0000 @@ -0,0 +1,181 @@ +/* ESP8266Interface Example + * 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 ESP8266_H +#define ESP8266_H + +#include "ATParser.h" + +/** ESP8266Interface class. + This is an interface to a ESP8266 radio. + */ +class ESP8266 +{ +public: + ESP8266(PinName tx, PinName rx, bool debug=false); + + /** + * Startup the ESP8266 + * + * @param mode mode of WIFI 1-client, 2-host, 3-both + * @return true only if ESP8266 was setup correctly + */ + bool startup(); + + /** + * Reset ESP8266 + * + * @return true only if ESP8266 resets successfully + */ + bool reset(const char *reset); + + /** + * Enable/Disable DHCP + * + * @param enabled DHCP enabled when true + * @param mode mode of DHCP 0-softAP, 1-station, 2-both + * @return true only if ESP8266 enables/disables DHCP successfully + */ + bool dhcp(bool enabled); + + /** + * Connect ESP8266 to AP + * + * @param ap the name of the AP + * @param passPhrase the password of AP + * @return true only if ESP8266 is connected successfully + */ + bool connect(const char *ap, const char *passPhrase); + + /** + * Disconnect ESP8266 from AP + * + * @return true only if ESP8266 is disconnected successfully + */ + bool disconnect(void); + + /** + * Get the IP address of ESP8266 + * + * @return null-teriminated IP address or null if no IP address is assigned + */ + const char *getIPAddress(void); + + /** + * Get the MAC address of ESP8266 + * + * @return null-terminated MAC address or null if no MAC address is assigned + */ + const char *getMACAddress(void); + + /** + * Check if ESP8266 is conenected + * + * @return true only if the chip has an IP address + */ + bool isConnected(void); + + /** + * Open a socketed connection + * + * @param type the type of socket to open "UDP" or "TCP" + * @param id id to give the new socket, valid 0-4 + * @param port port to open connection with + * @param addr the IP address of the destination + * @return true only if socket opened successfully + */ + int open(const char *type, int id, const char* addr, int port); + + /** + * Sends data to an open socket + * + * @param id id of socket to send to + * @param data data to be sent + * @param amount amount of data to be sent - max 1024 + * @return true only if data sent successfully + */ + bool send(int id, const void *data, uint32_t amount); + + /** + * Receives data from an open socket + * + * @param id id to receive from + * @param data placeholder for returned information + * @param amount number of bytes to be received + * @return the number of bytes received + */ + int32_t recv(int id, void *data, uint32_t amount); + + /** + * Closes a socket + * + * @param id id of socket to close, valid only 0-4 + * @return true only if socket is closed successfully + */ + bool close(int id); + + /** + * Allows timeout to be changed between commands + * + * @param timeout_ms timeout of the connection + */ + void setTimeout(uint32_t timeout_ms); + + /** + * Checks if data is available + */ + bool readable(); + + /** + * Checks if data can be written + */ + bool writeable(); + + /** + * Attach a function to call whenever network state has changed + * + * @param func A pointer to a void function, or 0 to set as none + */ + void attach(Callback<void()> func); + + /** + * Attach a function to call whenever network state has changed + * + * @param obj pointer to the object to call the member function on + * @param method pointer to the member function to call + */ + template <typename T, typename M> + void attach(T *obj, M method) { + attach(Callback<void()>(obj, method)); + } + +private: + BufferedSerial _serial; + ATParser _parser; + + struct packet { + struct packet *next; + int id; + uint32_t len; + // data follows + } *_packets, **_packets_end; + void _packet_handler(); + + char _ip_buffer[16]; + char _mac_buffer[18]; +}; + +#endif