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#ifndef WiFi_Drv_h
#define WiFi_Drv_h
#include <inttypes.h>
#include "wifi_spi.h"
#include "IPAddress.h"
// Key index length
#define KEY_IDX_LEN 1
// 5 secs of delay to have the connection established
#define WL_DELAY_START_CONNECTION 5000
// firmware version string length
#define WL_FW_VER_LENGTH 6
class WiFiDrv
{
private:
// settings of requested network
static char _networkSsid[WL_NETWORKS_LIST_MAXNUM][WL_SSID_MAX_LENGTH];
static int32_t _networkRssi[WL_NETWORKS_LIST_MAXNUM];
static uint8_t _networkEncr[WL_NETWORKS_LIST_MAXNUM];
// firmware version string in the format a.b.c
static char fwVersion[WL_FW_VER_LENGTH];
// settings of current selected network
static char _ssid[WL_SSID_MAX_LENGTH];
static uint8_t _bssid[WL_MAC_ADDR_LENGTH];
static uint8_t _mac[WL_MAC_ADDR_LENGTH];
static uint8_t _localIp[WL_IPV4_LENGTH];
static uint8_t _subnetMask[WL_IPV4_LENGTH];
static uint8_t _gatewayIp[WL_IPV4_LENGTH];
/*
* Get network Data information
*/
static void getNetworkData(uint8_t *ip, uint8_t *mask, uint8_t *gwip);
static uint8_t reqHostByName(const char* aHostname);
static int getHostByName(IPAddress& aResult);
public:
/*
* Driver initialization
*/
static void wifiDriverInit();
/*
* Set the desired network which the connection manager should try to
* connect to.
*
* The ssid of the desired network should be specified.
*
* param ssid: The ssid of the desired network.
* param ssid_len: Lenght of ssid string.
* return: WL_SUCCESS or WL_FAILURE
*/
static int8_t wifiSetNetwork(char* ssid, uint8_t ssid_len);
/* Start Wifi connection with passphrase
* the most secure supported mode will be automatically selected
*
* param ssid: Pointer to the SSID string.
* param ssid_len: Lenght of ssid string.
* param passphrase: Passphrase. Valid characters in a passphrase
* must be between ASCII 32-126 (decimal).
* param len: Lenght of passphrase string.
* return: WL_SUCCESS or WL_FAILURE
*/
static int8_t wifiSetPassphrase(char* ssid, uint8_t ssid_len, const char *passphrase, const uint8_t len);
/* Start Wifi connection with WEP encryption.
* Configure a key into the device. The key type (WEP-40, WEP-104)
* is determined by the size of the key (5 bytes for WEP-40, 13 bytes for WEP-104).
*
* param ssid: Pointer to the SSID string.
* param ssid_len: Lenght of ssid string.
* param key_idx: The key index to set. Valid values are 0-3.
* param key: Key input buffer.
* param len: Lenght of key string.
* return: WL_SUCCESS or WL_FAILURE
*/
static int8_t wifiSetKey(char* ssid, uint8_t ssid_len, uint8_t key_idx, const void *key, const uint8_t len);
/*
* Disconnect from the network
*
* return: WL_SUCCESS or WL_FAILURE
*/
static int8_t disconnect();
/*
* Disconnect from the network
*
* return: one value of wl_status_t enum
*/
static uint8_t getConnectionStatus();
/*
* Get the interface MAC address.
*
* return: pointer to uint8_t array with length WL_MAC_ADDR_LENGTH
*/
static uint8_t* getMacAddress();
/*
* Get the interface IP address.
*
* return: copy the ip address value in IPAddress object
*/
static void getIpAddress(IPAddress& ip);
/*
* Get the interface subnet mask address.
*
* return: copy the subnet mask address value in IPAddress object
*/
static void getSubnetMask(IPAddress& mask);
/*
* Get the gateway ip address.
*
* return: copy the gateway ip address value in IPAddress object
*/
static void getGatewayIP(IPAddress& ip);
/*
* Return the current SSID associated with the network
*
* return: ssid string
*/
static char* getCurrentSSID();
/*
* Return the current BSSID associated with the network.
* It is the MAC address of the Access Point
*
* return: pointer to uint8_t array with length WL_MAC_ADDR_LENGTH
*/
static uint8_t* getCurrentBSSID();
/*
* Return the current RSSI /Received Signal Strength in dBm)
* associated with the network
*
* return: signed value
*/
static int32_t getCurrentRSSI();
/*
* Return the Encryption Type associated with the network
*
* return: one value of wl_enc_type enum
*/
static uint8_t getCurrentEncryptionType();
/*
* Start scan WiFi networks available
*
* return: Number of discovered networks
*/
static int8_t startScanNetworks();
/*
* Get the networks available
*
* return: Number of discovered networks
*/
static uint8_t getScanNetworks();
/*
* Return the SSID discovered during the network scan.
*
* param networkItem: specify from which network item want to get the information
*
* return: ssid string of the specified item on the networks scanned list
*/
static char* getSSIDNetoworks(uint8_t networkItem);
/*
* Return the RSSI of the networks discovered during the scanNetworks
*
* param networkItem: specify from which network item want to get the information
*
* return: signed value of RSSI of the specified item on the networks scanned list
*/
static int32_t getRSSINetoworks(uint8_t networkItem);
/*
* Return the encryption type of the networks discovered during the scanNetworks
*
* param networkItem: specify from which network item want to get the information
*
* return: encryption type (enum wl_enc_type) of the specified item on the networks scanned list
*/
static uint8_t getEncTypeNetowrks(uint8_t networkItem);
/*
* Resolve the given hostname to an IP address.
* param aHostname: Name to be resolved
* param aResult: IPAddress structure to store the returned IP address
* result: 1 if aIPAddrString was successfully converted to an IP address,
* else error code
*/
static int getHostByName(const char* aHostname, IPAddress& aResult);
/*
* Get the firmware version
* result: version as string with this format a.b.c
*/
static char* getFwVersion();
};
extern WiFiDrv wiFiDrv;
#endif
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