Host library for controlling a WiConnect enabled Wi-Fi module.

Dependents:   wiconnect-ota_example wiconnect-web_setup_example wiconnect-test-console wiconnect-tcp_server_example ... more

Revision:
29:b6af04b77a56
diff -r 3c52f578708a -r b6af04b77a56 api/NetworkInterface.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/api/NetworkInterface.h	Mon Oct 27 13:42:26 2014 -0700
@@ -0,0 +1,437 @@
+/**
+ * ACKme WiConnect Host Library is licensed under the BSD licence: 
+ * 
+ * Copyright (c)2014 ACKme Networks.
+ * All rights reserved. 
+ * 
+ * Redistribution and use in source and binary forms, with or without modification, 
+ * are permitted provided that the following conditions are met: 
+ * 
+ * 1. Redistributions of source code must retain the above copyright notice, 
+ * this list of conditions and the following disclaimer. 
+ * 2. 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. 
+ * 3. The name of the author may not be used to endorse or promote products 
+ * derived from this software without specific prior written permission. 
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
+ */
+#pragma once
+
+
+#include "WiconnectTypes.h"
+#include "api/types/ScanResultList.h"
+
+
+namespace wiconnect {
+
+
+#ifdef WICONNECT_USE_DEFAULT_STRING_BUFFERS
+#define ALLOW_NULL_STRING_BUFFER = NULL
+#else
+#define ALLOW_NULL_STRING_BUFFER
+#endif
+
+/**
+ * @ingroup api_network_types
+ *
+ * @brief The provides an interface for joining and/or creating a network.
+ * It provides other utilities such as scanning for networks, pinging a network,
+ * resolving a domain name to IP address.
+ *
+ * @note This class is an interface to the Wiconnect class. It should never be
+ *       independently instantiated or the parent of another class.
+ */
+class NetworkInterface
+{
+public:
+    /**
+     * @ingroup api_network_setup
+     *
+     * @brief Start the WiConnect WiFi module 'web setup' feature.
+     *
+     * This command has an optional background processing feature.
+     * Background processing is enabled if the completeHandler parameter
+     * is specified. If enabled, the library will poll the module every second
+     * for the web setup status (essentially it'll call isWebSetupRunning() every
+     * second in the background). When the web setup is no longer running the
+     * callback will be executed. The background processing is disabled when stopWebSetup()
+     * is called.
+     *
+     * @note only the 'result' parameter of the callback handler is valid.
+     *
+     * Refer to @ref setting_async_processing for more info.
+     *
+     * @param[in] ssid Optional, optionally set the SSID of module's softAp
+     * @param[in] password Optional, optionally set the WPA2-PSK password for the module'S softap
+     *                     Note: make an OPEN softAp, set this parameter to a null string (i.e. "")
+     * @param[in] completeHandler Optional, callback to be executed when module web setup completes.
+     * @return Result of method. See @ref WiconnectResult
+     */
+    WiconnectResult startWebSetup(const char *ssid = NULL, const char *password = NULL, const Callback &completeHandler = Callback());
+
+    /**
+     * @ingroup api_network_setup
+     *
+     * @brief Stop the WiConnect WiFi module 'web setup' feature.
+     *
+     * This method should be called AFTER startWebSetup() to prematurely terminate
+     * web setup. Note that this is not needed if web setup completes by itself
+     * (i.e. if the user exits web setup from the webpage).
+     *
+     *  @return Result of method. See @ref WiconnectResult
+     */
+    WiconnectResult stopWebSetup();
+
+    /**
+     * @ingroup api_network_setup
+     *
+     * @brief Return status of WiConnect WiFi module 'web setup' feature.
+     *
+     * This may be called at any time (whether web setpu has been stared or not).
+     *
+     * @param[out] isRunningPtr Pointer to bool to contain TRUE if web setup is running, FALSE else
+     * @return Result of method. See @ref WiconnectResult
+     */
+    WiconnectResult isWebSetupRunning(bool *isRunningPtr);
+
+
+    // ------------------------------------------------------------------------
+
+
+    /**
+     * @ingroup api_network_wlan
+     *
+     * @brief Join a WiFi network.
+     *
+     * This command has an optional background processing feature.
+     * Background processing is enabled if the completeHandler parameter
+     * is specified. If enabled, the library will poll the module every second
+     * for the join status (essentially it'll call getNetworkStatus() every
+     * second in the background). When the module join sequence complete the callback will be executed.
+     * The background processing is disabled when leave() is called.
+     *
+     * * If completeHandler parameter is NOT specified:
+     *   This command will BLOCK/return WICONNECT_PROCESSING until the module has
+     *   either successfully joined the network or failed.
+     * * If the completeHandler parameter IS specified:
+     *   This command will return and use the background processing feature described above.
+     *
+     * @note only the 'result' parameter of the callback handler is valid.
+     *
+     * Refer to @ref setting_async_processing for more info.
+     *
+     * @param[in] ssid Optional, optionally set the SSID of the network to join
+     * @param[in] password Optional, optionally set the passkey of the network to join
+     *                     Note: to join an OPEN network, set this parameter to a null string (i.e. "")
+     * @param[in] completeHandler Optional, callback to be executed when the join sequence completes.
+     *                             The 'result' callback parameter contains the WiconnectResult of joining.
+     *                             The 'arg1' parameter is a @ref NetworkJoinResult of joining.
+     * @return Result of method. See @ref WiconnectResult
+     */
+    WiconnectResult join(const char* ssid = NULL, const char *password = NULL, const Callback &completeHandler = Callback());
+
+    /**
+     * @ingroup api_network_wlan
+     *
+     * @brief Leave a WiFi network.
+     *
+     * This method may be called to either terminate a join sequence or
+     * leave a previously connected networked.
+     *
+     * @return Result of method. See @ref WiconnectResult
+     */
+    WiconnectResult leave();
+
+    /**
+     * @ingroup api_network_wlan
+     *
+     * @brief Get connection status to WiFi network.
+     *
+     * Refer to @ref NetworkStatus for more info.
+     *
+     * @param[out] statusPtr Point to a @ref NetworkStatus which will hold current network status of module
+     * @return Result of method. See @ref WiconnectResult
+     */
+    WiconnectResult getNetworkStatus(NetworkStatus *statusPtr);
+
+    /**
+     * @ingroup api_network_wlan
+     *
+     * @brief Get the result of joining the network
+     *
+     * Refer to @ref NetworkJoinResult for more info.
+     *
+     * @param[out] joinResultPtr Point to a @ref NetworkJoinResult which will hold the result of joining the network
+     * @return Result of method. See @ref WiconnectResult
+     */
+    WiconnectResult getNetworkJoinResult(NetworkJoinResult *joinResultPtr);
+
+    /**
+     * @ingroup api_network_wlan
+     *
+     * @brief Get @ref NetworkSignalStrength of WiFi network module is connected
+     */
+    WiconnectResult getSignalStrength(NetworkSignalStrength *signalStrengthPtr);
+
+    /**
+     * @ingroup api_network_wlan
+     *
+     * @brief Get the RSSI in dBm of WiFi network
+     */
+    WiconnectResult getRssi(int32_t *rssiPtr);
+
+    /**
+     * @ingroup api_network_wlan
+     *
+     * @brief Get MAC address of the WiFi module
+     */
+    WiconnectResult getMacAddress(MacAddress *macAddress);
+
+
+    // ------------------------------------------------------------------------
+
+
+//    WiconnectResult startSoftAp(const char* ssid = NULL, const char *password = NULL, const Callback &clientConnectedCallback = Callback());
+//    WiconnectResult stopSoftAp();
+//    WiconnectResult getSoftApClientList();
+
+
+    // ------------------------------------------------------------------------
+
+
+    /**
+     * @ingroup api_network_util
+     *
+     * @brief Scan for available WiFi networks.
+     *
+     * The populate the supplied @ref ScanResultList with @ref ScanResult of each found network.
+     *
+     * Optionally only scan of specific channels by supplying a null terminated list of channels.
+     * Example:
+     * @code
+     * const uint8_t channelsToScan[] = {1, 6, 11, 0};
+     * @endcode
+     *
+     * @param[out] resultList List to populate with scan results.
+     * @param[in] channelList Optional, null terminated list of channels to scan.
+     * @param[in] ssid Optional, specific network name to scan for.
+     * @return Result of method. See @ref WiconnectResult
+     */
+    WiconnectResult scan(ScanResultList &resultList, const uint8_t *channelList = NULL, const char* ssid = NULL);
+
+    /**
+     * @ingroup api_network_util
+     *
+     * @brief Ping a WiFi network.
+     *
+     * Optionally ping a specific server and return the time in milliseconds it took
+     * for the network to response. If no domain is supplied, the module pings to gateway
+     * (i.e router it's connected to).
+     *
+     * @param[in] domain Optional, the domain name to ping
+     * @param[out] timeMsPtr Optional, pointer to uint32 to hold time in milliseconds the ping took
+     * @return Result of method. See @ref WiconnectResult
+     */
+    WiconnectResult ping(const char *domain = NULL, uint32_t *timeMsPtr = NULL);
+
+    /**
+     * @ingroup api_network_util
+     *
+     * @brief Resolve domain name into IP address.
+     *
+     * @param[in] domain The domain name to resolve
+     * @param[out] ipAddressPtr pointer to uint32 to hold resolved IP address. Note, the IP address is in network-byte-order.
+     * @return Result of method. See @ref WiconnectResult
+     */
+    WiconnectResult lookup(const char *domain, uint32_t *ipAddressPtr);
+
+
+    // ------------------------------------------------------------------------
+
+
+    /**
+     * @ingroup api_network_settings
+     *
+     * @brief Set DHCP enabled.
+     *
+     * @return Result of method. See @ref WiconnectResult
+     */
+    WiconnectResult setDhcpEnabled(bool enabled);
+
+    /**
+     * @ingroup api_network_settings
+     *
+     * @brief Get if DHCP enabled.
+     */
+    WiconnectResult getDhcpEnabled(bool *enabledPtr);
+
+    /**
+     * @ingroup api_network_settings
+     *
+     * @brief Set static IP settings
+     */
+    WiconnectResult setIpSettings(uint32_t ip, uint32_t netmask, uint32_t gateway);
+
+    /**
+     * @ingroup api_network_settings
+     *
+     * @brief Set static IP settings (with string parameters)
+     */
+    WiconnectResult setIpSettings(const char* ip, const char* netmask, const char* gateway);
+
+    /**
+     * @ingroup api_network_settings
+     *
+     * @brief Get network IP settings
+     */
+    WiconnectResult getIpSettings(uint32_t *ip, uint32_t *netmask, uint32_t *gateway);
+
+    /**
+     * @ingroup api_network_settings
+     *
+     * @brief Set static DNS Address
+     */
+    WiconnectResult setDnsAddress(uint32_t dnsAddress);
+
+    /**
+     * @ingroup api_network_settings
+     *
+     * @brief Get the static DNS address
+     */
+    WiconnectResult getDnsAddress(uint32_t *dnsAddress);
+
+    /**
+     * @ingroup api_network_settings
+     *
+     * @note This method is only supported in blocking mode.
+     *
+     * @brief Return the current IP address of the module if possible, else
+     *        return 0.0.0.0
+     * @param[in] buffer Optional, buffer to IP address string. If omitted,
+     *            the IP address string is stored in a local static buffer (this is non-reentrant!)
+     */
+    const char* getIpAddress(char *buffer ALLOW_NULL_STRING_BUFFER);
+
+
+    // ------------------------------------------------------------------------
+
+
+    /**
+     * @ingroup conversion_util
+     *
+     * @brief Convert string to IP address
+     */
+    static bool strToIp(const char *str, uint32_t *intPtr);
+
+    /**
+     * @ingroup conversion_util
+     *
+     * @brief Convert IP address to string
+     */
+    static const char* ipToStr(uint32_t ip, char *ipStrBuffer ALLOW_NULL_STRING_BUFFER);
+
+
+    /**
+     * @ingroup conversion_util
+     *
+     * @brief Convert @ref NetworkStatus to string
+     */
+    static const char* networkStatusToStr(NetworkStatus status);
+
+    /**
+     * @ingroup conversion_util
+     *
+     * @brief Convert @ref NetworkJoinResult to string
+     */
+    static const char* networkJoinResultToStr(NetworkJoinResult joinResult);
+
+    /**
+     * @ingroup conversion_util
+     *
+     * @brief Convert @ref NetworkSignalStrength to string
+     */
+    static const char* signalStrengthToStr(NetworkSignalStrength signalStrenth);
+
+    /**
+     * @ingroup conversion_util
+     *
+     * @brief Convert RSSI (in dBm) to @ref NetworkSignalStrength
+     */
+    static NetworkSignalStrength rssiToSignalStrength(int rssi);
+
+    /**
+     * @ingroup conversion_util
+     *
+     * @brief Convert string to @ref NetworkSecurity
+     */
+    static NetworkSecurity strToNetworkSecurity(const char *str);
+
+    /**
+     * @ingroup conversion_util
+     *
+     * @brief Convert @ref NetworkSecurity to string
+     */
+    static const char* networkSecurityToStr(NetworkSecurity security);
+
+    /**
+     * @ingroup conversion_util
+     *
+     * @brief Convert string @ref Ssid
+     */
+    static bool strToSsid(const char *str, Ssid *ssid);
+
+    /**
+     * @ingroup conversion_util
+     *
+     * @brief Convert @ref Ssid to string
+     */
+    static const char* ssidToStr(const Ssid *ssid, char *ssidStrBuffer ALLOW_NULL_STRING_BUFFER);
+
+    /**
+     * @ingroup conversion_util
+     *
+     * @brief Convert string @ref MacAddress
+     */
+    static bool strToMacAddress(const char *str, MacAddress *macAddress);
+
+    /**
+     * @ingroup conversion_util
+     *
+     * @brief Convert @ref MacAddress to string
+     */
+    static const char* macAddressToStr(const MacAddress *macAddress, char *macStrBuffer ALLOW_NULL_STRING_BUFFER);
+
+protected:
+    NetworkInterface(Wiconnect *wiconnect);
+
+    WiconnectResult processScanResults(char *resultStr, ScanResultList &resultList);
+
+#ifdef WICONNECT_ASYNC_TIMER_ENABLED
+    Callback completeHandler;
+    PeriodicTimer monitorTimer;
+
+    void webSetupStatusMonitor();
+    void webSetupStatusCheckCallback(WiconnectResult result, void *arg1, void *arg2);
+
+    void joinStatusMonitor();
+    void joinStatusCheckCallback(WiconnectResult result, void *arg1, void *arg2);
+
+    //void scanCompleteCallback(WiconnectResult result, void *arg1, void *arg2);
+#endif
+
+private:
+    Wiconnect *wiconnect;
+};
+
+}