Diff: features/netsocket/WiFiInterface.h

Revision:

0:f269e3021894

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/features/netsocket/WiFiInterface.h	Sun Oct 23 15:10:02 2016 +0000
@@ -0,0 +1,110 @@
+
+/** \addtogroup netsocket */
+/** @{*/
+/* WiFiInterface
+ * Copyright (c) 2015 - 2016 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 WIFI_INTERFACE_H
+#define WIFI_INTERFACE_H
+
+#include <string.h>
+#include "Callback.h"
+#include "netsocket/NetworkInterface.h"
+#include "netsocket/WiFiAccessPoint.h"
+
+/** WiFiInterface class
+ *
+ *  Common interface that is shared between WiFi devices
+ */
+class WiFiInterface: public NetworkInterface
+{
+public:
+    /** WiFiInterface lifetime
+     */
+    virtual ~WiFiInterface() {};
+
+    /** Set the WiFi network credentials
+     *
+     *  @param ssid      Name of the network to connect to
+     *  @param pass      Security passphrase to connect to the network
+     *  @param security  Type of encryption for connection
+     *                   (defaults to NSAPI_SECURITY_NONE)
+     *  @return          0 on success, or error code on failure
+     */
+    virtual int set_credentials(const char *ssid, const char *pass, nsapi_security_t security = NSAPI_SECURITY_NONE) = 0;
+
+    /** Set the WiFi network channel
+     *
+     *  @param channel   Channel on which the connection is to be made, or 0 for any (Default: 0)
+     *  @return          0 on success, or error code on failure
+     */
+    virtual int set_channel(uint8_t channel) = 0;
+
+    /** Gets the current radio signal strength for active connection
+     *
+     *  @return         Connection strength in dBm (negative value),
+     *                  or 0 if measurement impossible
+     */
+    virtual int8_t get_rssi() = 0;
+
+    /** Start the interface
+     *
+     *  Attempts to connect to a WiFi network.
+     *
+     *  @param ssid      Name of the network to connect to
+     *  @param pass      Security passphrase to connect to the network
+     *  @param security  Type of encryption for connection (Default: NSAPI_SECURITY_NONE)
+     *  @param channel   Channel on which the connection is to be made, or 0 for any (Default: 0)
+     *  @return          0 on success, or error code on failure
+     */
+    virtual int connect(const char *ssid, const char *pass,
+            nsapi_security_t security = NSAPI_SECURITY_NONE,
+            uint8_t channel = 0) = 0;
+
+    /** Start the interface
+     *
+     *  Attempts to connect to a WiFi network. Requires ssid and passphrase to be set.
+     *  If passphrase is invalid, NSAPI_ERROR_AUTH_ERROR is returned.
+     *
+     *  @return         0 on success, negative error code on failure
+     */
+    virtual int connect() = 0;
+
+    /** Stop the interface
+     *
+     *  @return         0 on success, or error code on failure
+     */
+    virtual int disconnect() = 0;
+
+    /** Scan for available networks
+     *
+     *  The scan will 
+     *  If the network interface is set to non-blocking mode, scan will attempt to scan
+     *  for WiFi networks asynchronously and return NSAPI_ERROR_WOULD_BLOCK. If a callback
+     *  is attached, the callback will be called when the operation has completed.
+     *
+     * @param  ap       Pointer to allocated array to store discovered AP
+     * @param  count    Size of allocated @a res array, or 0 to only count available AP
+     * @param  timeout  Timeout in milliseconds; 0 for no timeout (Default: 0)
+     * @return          Number of entries in @a, or if @a count was 0 number of available networks, negative on error
+     *                  see @a nsapi_error
+     */
+    virtual int scan(WiFiAccessPoint *res, unsigned count) = 0;
+};
+
+#endif
+
+/** @}*/