Diff: cc3000_wlan.cpp

Revision:

0:615c697c33b0

Child:

20:30b6ed7bf8fd

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/cc3000_wlan.cpp	Thu Sep 19 07:55:14 2013 +0000
@@ -0,0 +1,699 @@
+/*****************************************************************************
+*
+*  C++ interface/implementation created by Martin Kojtal (0xc0170). Thanks to
+*  Jim Carver and Frank Vannieuwkerke for their inital cc3000 mbed port and
+*  provided help.
+*
+*  This version of "host driver" uses CC3000 Host Driver Implementation. Thus
+*  read the following copyright:
+*
+*  Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/
+*
+*  Redistribution and use in source and binary forms, with or without
+*  modification, are permitted provided that the following conditions
+*  are met:
+*
+*    Redistributions of source code must retain the above copyright
+*    notice, this list of conditions and the following disclaimer.
+*
+*    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.
+*
+*    Neither the name of Texas Instruments Incorporated nor the names of
+*    its contributors may be used to endorse or promote products derived
+*    from this software without specific prior written permission.
+*
+*  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+*  "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 COPYRIGHT
+*  OWNER OR CONTRIBUTORS 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.
+*
+*****************************************************************************/
+#include "cc3000.h"
+
+namespace mbed_cc3000 {
+
+cc3000_wlan::cc3000_wlan(cc3000_simple_link &simple_link, cc3000_event &event, cc3000_spi &spi, cc3000_hci &hci) :
+    _simple_link(simple_link), _event(event), _spi(spi), _hci(hci) {
+
+}
+
+cc3000_wlan::~cc3000_wlan() {
+
+}
+
+void cc3000_wlan::simpleLink_init_start(uint16_t patches_available_host) {
+    uint8_t *ptr;
+    uint8_t *args;
+
+    ptr = _simple_link.get_transmit_buffer();
+    args = (uint8_t *)(ptr + HEADERS_SIZE_CMD);
+
+    UINT8_TO_STREAM(args, ((patches_available_host) ? SL_PATCHES_REQUEST_FORCE_HOST : SL_PATCHES_REQUEST_DEFAULT));
+
+    // IRQ Line asserted - send HCI_CMND_SIMPLE_LINK_START to CC3000
+    _hci.command_send(HCI_CMND_SIMPLE_LINK_START, ptr, WLAN_SL_INIT_START_PARAMS_LEN);
+    _event.simplelink_wait_event(HCI_CMND_SIMPLE_LINK_START, 0);
+}
+
+void cc3000_wlan::start(uint16_t patches_available_host) {
+    uint32_t spi_irq_state;
+
+    _simple_link.set_sent_packets(0);
+    _simple_link.set_number_of_released_packets(0);
+    _simple_link.set_op_code(0);
+    _simple_link.set_number_free_buffers(0);
+    _simple_link.set_buffer_length(0);
+    _simple_link.set_buffer_size(0);
+    _simple_link.set_pending_data(0);
+    _simple_link.set_transmit_error(0);
+    _simple_link.set_data_received_flag(0);
+    _simple_link.set_buffer_size(0);
+
+    // init spi
+    _spi.open();
+    // Check the IRQ line
+    spi_irq_state = _spi.wlan_irq_read();
+    // ASIC 1273 chip enable: toggle WLAN EN line
+    _spi.write_wlan_en(WLAN_ENABLE);
+
+    if (spi_irq_state)
+    {
+        // wait till the IRQ line goes low
+        while(_spi.wlan_irq_read() != 0)
+        {
+        }
+    }
+    else
+    {
+        // wait till the IRQ line goes high and then low
+        while(_spi.wlan_irq_read() == 0)
+        {
+        }
+        while(_spi.wlan_irq_read() != 0)
+        {
+        }
+    }
+    simpleLink_init_start(patches_available_host);
+
+    // Read Buffer's size and finish
+    _hci.command_send(HCI_CMND_READ_BUFFER_SIZE, _simple_link.get_transmit_buffer(), 0);
+    _event.simplelink_wait_event(HCI_CMND_READ_BUFFER_SIZE, 0);
+}
+
+
+void cc3000_wlan::stop() {
+    // ASIC 1273 chip disable
+    _spi.write_wlan_en( WLAN_DISABLE );
+
+    // Wait till IRQ line goes high...
+    while(_spi.wlan_irq_read() == 0)
+    {
+    }
+
+    // Free the used by WLAN Driver memory
+    if (_simple_link.get_transmit_buffer())
+    {
+        _simple_link.set_transmit_buffer(0);
+    }
+
+    _spi.close();
+}
+
+
+int32_t cc3000_wlan::disconnect() {
+    int32_t ret;
+    uint8_t *ptr;
+
+    ret = EFAIL;
+    ptr = _simple_link.get_transmit_buffer();
+
+    _hci.command_send(HCI_CMND_WLAN_DISCONNECT, ptr, 0);
+
+    // Wait for command complete event
+    _event.simplelink_wait_event(HCI_CMND_WLAN_DISCONNECT, &ret);
+    errno = ret;
+
+    return(ret);
+}
+
+
+int32_t cc3000_wlan::ioctl_set_connection_policy(uint32_t should_connect_to_open_ap,
+                                      uint32_t use_fast_connect,
+                                      uint32_t use_profiles) {
+    int32_t ret;
+    uint8_t *ptr;
+    uint8_t *args;
+
+    ret = EFAIL;
+    ptr = _simple_link.get_transmit_buffer();
+    args = (uint8_t *)(ptr + HEADERS_SIZE_CMD);
+
+    // Fill in HCI packet structure
+    args = UINT32_TO_STREAM(args, should_connect_to_open_ap);
+    args = UINT32_TO_STREAM(args, use_fast_connect);
+    args = UINT32_TO_STREAM(args, use_profiles);
+
+    // Initiate a HCI command
+    _hci.command_send(HCI_CMND_WLAN_IOCTL_SET_CONNECTION_POLICY, ptr, WLAN_SET_CONNECTION_POLICY_PARAMS_LEN);
+
+    // Wait for command complete event
+    _event.simplelink_wait_event(HCI_CMND_WLAN_IOCTL_SET_CONNECTION_POLICY, &ret);
+
+    return(ret);
+}
+
+
+int32_t cc3000_wlan::ioctl_del_profile(uint32_t index) {
+    int32_t ret;
+    uint8_t *ptr;
+    uint8_t *args;
+
+    ptr = _simple_link.get_transmit_buffer();
+    args = (uint8_t *)(ptr + HEADERS_SIZE_CMD);
+
+    // Fill in HCI packet structure
+    args = UINT32_TO_STREAM(args, index);
+    ret = EFAIL;
+
+    // Initiate a HCI command
+    _hci.command_send(HCI_CMND_WLAN_IOCTL_DEL_PROFILE, ptr, WLAN_DEL_PROFILE_PARAMS_LEN);
+
+    // Wait for command complete event
+    _event.simplelink_wait_event(HCI_CMND_WLAN_IOCTL_DEL_PROFILE, &ret);
+
+    return(ret);
+}
+
+int32_t cc3000_wlan::set_event_mask(uint32_t mask) {
+    int32_t ret;
+    uint8_t *ptr;
+    uint8_t *args;
+
+
+    if ((mask & HCI_EVNT_WLAN_TX_COMPLETE) == HCI_EVNT_WLAN_TX_COMPLETE)
+    {
+        _simple_link.set_tx_complete_signal(0);
+
+        // Since an event is a virtual event - i.e. it is not coming from CC3000
+        // there is no need to send anything to the device if it was an only event
+        if (mask == HCI_EVNT_WLAN_TX_COMPLETE)
+        {
+            return 0;
+        }
+
+        mask &= ~HCI_EVNT_WLAN_TX_COMPLETE;
+        mask |= HCI_EVNT_WLAN_UNSOL_BASE;
+    }
+    else
+    {
+        _simple_link.set_tx_complete_signal(1);
+    }
+
+    ret = EFAIL;
+    ptr = _simple_link.get_transmit_buffer();
+    args = (uint8_t *)(ptr + HEADERS_SIZE_CMD);
+
+    // Fill in HCI packet structure
+    args = UINT32_TO_STREAM(args, mask);
+
+    // Initiate a HCI command
+    _hci.command_send(HCI_CMND_EVENT_MASK, ptr, WLAN_SET_MASK_PARAMS_LEN);
+
+    // Wait for command complete event
+    _event.simplelink_wait_event(HCI_CMND_EVENT_MASK, &ret);
+
+    return(ret);
+}
+
+
+int32_t cc3000_wlan::smart_config_start(uint32_t encrypted_flag) {
+    int32_t ret;
+    uint8_t *ptr;
+    uint8_t *args;
+
+    ret = EFAIL;
+    ptr = _simple_link.get_transmit_buffer();
+    args = (uint8_t *)(ptr + HEADERS_SIZE_CMD);
+
+    // Fill in HCI packet structure
+    args = UINT32_TO_STREAM(args, encrypted_flag);
+    ret = EFAIL;
+
+    _hci.command_send(HCI_CMND_WLAN_IOCTL_SIMPLE_CONFIG_START, ptr, WLAN_SMART_CONFIG_START_PARAMS_LEN);
+
+    // Wait for command complete event
+    _event.simplelink_wait_event(HCI_CMND_WLAN_IOCTL_SIMPLE_CONFIG_START, &ret);
+
+    return(ret);
+}
+
+
+int32_t cc3000_wlan::smart_config_stop(void) {
+    int32_t ret;
+    uint8_t *ptr;
+
+    ret = EFAIL;
+    ptr = _simple_link.get_transmit_buffer();
+
+    _hci.command_send(HCI_CMND_WLAN_IOCTL_SIMPLE_CONFIG_STOP, ptr, 0);
+
+    // Wait for command complete event
+    _event.simplelink_wait_event(HCI_CMND_WLAN_IOCTL_SIMPLE_CONFIG_STOP, &ret);
+
+    return(ret);
+}
+
+int32_t cc3000_wlan::smart_config_set_prefix(uint8_t *new_prefix) {
+    int32_t ret;
+    uint8_t *ptr;
+    uint8_t *args;
+
+    ret = EFAIL;
+    ptr = _simple_link.get_transmit_buffer();
+    args = (ptr + HEADERS_SIZE_CMD);
+
+    if (new_prefix == NULL)
+        return ret;
+    else    // with the new Smart Config, prefix must be TTT
+    {
+        *new_prefix = 'T';
+        *(new_prefix + 1) = 'T';
+        *(new_prefix + 2) = 'T';
+    }
+
+    ARRAY_TO_STREAM(args, new_prefix, SL_SIMPLE_CONFIG_PREFIX_LENGTH);
+
+    _hci.command_send(HCI_CMND_WLAN_IOCTL_SIMPLE_CONFIG_SET_PREFIX, ptr, SL_SIMPLE_CONFIG_PREFIX_LENGTH);
+
+    // Wait for command complete event
+    _event.simplelink_wait_event(HCI_CMND_WLAN_IOCTL_SIMPLE_CONFIG_SET_PREFIX, &ret);
+
+    return(ret);
+}
+
+#ifndef CC3000_TINY_DRIVER
+int32_t cc3000_wlan::connect(uint32_t sec_type, const uint8_t *ssid, int32_t ssid_len, uint8_t *bssid,
+              uint8_t *key, int32_t key_len) {
+    int32_t ret;
+    uint8_t *ptr;
+    uint8_t *args;
+    uint8_t bssid_zero[] = {0, 0, 0, 0, 0, 0};
+
+    ret      = EFAIL;
+    ptr      = _simple_link.get_transmit_buffer();
+    args     = (ptr + HEADERS_SIZE_CMD);
+
+    // Fill in command buffer
+    args = UINT32_TO_STREAM(args, 0x0000001c);
+    args = UINT32_TO_STREAM(args, ssid_len);
+    args = UINT32_TO_STREAM(args, sec_type);
+    args = UINT32_TO_STREAM(args, 0x00000010 + ssid_len);
+    args = UINT32_TO_STREAM(args, key_len);
+    args = UINT16_TO_STREAM(args, 0);
+
+    // padding shall be zeroed
+    if(bssid)
+    {
+        ARRAY_TO_STREAM(args, bssid, ETH_ALEN);
+    }
+    else
+    {
+        ARRAY_TO_STREAM(args, bssid_zero, ETH_ALEN);
+    }
+
+    ARRAY_TO_STREAM(args, ssid, ssid_len);
+
+    if(key_len && key)
+    {
+        ARRAY_TO_STREAM(args, key, key_len);
+    }
+
+    // Initiate a HCI command
+    _hci.command_send(HCI_CMND_WLAN_CONNECT, ptr, WLAN_CONNECT_PARAM_LEN + ssid_len + key_len - 1);
+
+    // Wait for command complete event
+    _event.simplelink_wait_event(HCI_CMND_WLAN_CONNECT, &ret);
+    errno = ret;
+
+    return(ret);
+}
+
+int32_t cc3000_wlan::add_profile(uint32_t sec_type,
+                      uint8_t* ssid,
+                      uint32_t ssid_length,
+                      uint8_t *b_ssid,
+                      uint32_t priority,
+                      uint32_t pairwise_cipher_or_tx_key_len,
+                      uint32_t group_cipher_tx_key_index,
+                      uint32_t key_mgmt,
+                      uint8_t* pf_or_key,
+                      uint32_t pass_phrase_len) {
+    uint16_t arg_len = 0x00;
+    int32_t ret;
+    uint8_t *ptr;
+    int32_t i = 0;
+    uint8_t *args;
+    uint8_t bssid_zero[] = {0, 0, 0, 0, 0, 0};
+
+    ptr = _simple_link.get_transmit_buffer();
+    args = (ptr + HEADERS_SIZE_CMD);
+
+    args = UINT32_TO_STREAM(args, sec_type);
+
+    // Setup arguments in accordance with the security type
+    switch (sec_type)
+    {
+        //OPEN
+    case WLAN_SEC_UNSEC:
+        {
+            args = UINT32_TO_STREAM(args, 0x00000014);
+            args = UINT32_TO_STREAM(args, ssid_length);
+            args = UINT16_TO_STREAM(args, 0);
+            if(b_ssid)
+            {
+                ARRAY_TO_STREAM(args, b_ssid, ETH_ALEN);
+            }
+            else
+            {
+                ARRAY_TO_STREAM(args, bssid_zero, ETH_ALEN);
+            }
+            args = UINT32_TO_STREAM(args, priority);
+            ARRAY_TO_STREAM(args, ssid, ssid_length);
+
+            arg_len = WLAN_ADD_PROFILE_NOSEC_PARAM_LEN + ssid_length;
+        }
+        break;
+
+        //WEP
+    case WLAN_SEC_WEP:
+        {
+            args = UINT32_TO_STREAM(args, 0x00000020);
+            args = UINT32_TO_STREAM(args, ssid_length);
+            args = UINT16_TO_STREAM(args, 0);
+            if(b_ssid)
+            {
+                ARRAY_TO_STREAM(args, b_ssid, ETH_ALEN);
+            }
+            else
+            {
+                ARRAY_TO_STREAM(args, bssid_zero, ETH_ALEN);
+            }
+            args = UINT32_TO_STREAM(args, priority);
+            args = UINT32_TO_STREAM(args, 0x0000000C + ssid_length);
+            args = UINT32_TO_STREAM(args, pairwise_cipher_or_tx_key_len);
+            args = UINT32_TO_STREAM(args, group_cipher_tx_key_index);
+            ARRAY_TO_STREAM(args, ssid, ssid_length);
+
+            for(i = 0; i < 4; i++)
+            {
+                uint8_t *p = &pf_or_key[i * pairwise_cipher_or_tx_key_len];
+
+                ARRAY_TO_STREAM(args, p, pairwise_cipher_or_tx_key_len);
+            }
+
+            arg_len = WLAN_ADD_PROFILE_WEP_PARAM_LEN + ssid_length +
+                pairwise_cipher_or_tx_key_len * 4;
+
+        }
+        break;
+
+        //WPA
+        //WPA2
+    case WLAN_SEC_WPA:
+    case WLAN_SEC_WPA2:
+        {
+            args = UINT32_TO_STREAM(args, 0x00000028);
+            args = UINT32_TO_STREAM(args, ssid_length);
+            args = UINT16_TO_STREAM(args, 0);
+            if(b_ssid)
+            {
+                ARRAY_TO_STREAM(args, b_ssid, ETH_ALEN);
+            }
+            else
+            {
+                ARRAY_TO_STREAM(args, bssid_zero, ETH_ALEN);
+            }
+            args = UINT32_TO_STREAM(args, priority);
+            args = UINT32_TO_STREAM(args, pairwise_cipher_or_tx_key_len);
+            args = UINT32_TO_STREAM(args, group_cipher_tx_key_index);
+            args = UINT32_TO_STREAM(args, key_mgmt);
+            args = UINT32_TO_STREAM(args, 0x00000008 + ssid_length);
+            args = UINT32_TO_STREAM(args, pass_phrase_len);
+            ARRAY_TO_STREAM(args, ssid, ssid_length);
+            ARRAY_TO_STREAM(args, pf_or_key, pass_phrase_len);
+
+            arg_len = WLAN_ADD_PROFILE_WPA_PARAM_LEN + ssid_length + pass_phrase_len;
+        }
+
+        break;
+    }
+
+    // Initiate a HCI command
+    _hci.command_send(HCI_CMND_WLAN_IOCTL_ADD_PROFILE, ptr, arg_len);
+
+    // Wait for command complete event
+    _event.simplelink_wait_event(HCI_CMND_WLAN_IOCTL_ADD_PROFILE, &ret);
+
+    return(ret);
+}
+
+int32_t cc3000_wlan::ioctl_get_scan_results(uint32_t scan_timeout, uint8_t *results) {
+    uint8_t *ptr;
+    uint8_t *args;
+
+    ptr = _simple_link.get_transmit_buffer();
+    args = (ptr + HEADERS_SIZE_CMD);
+
+    // Fill in temporary command buffer
+    args = UINT32_TO_STREAM(args, scan_timeout);
+
+    // Initiate a HCI command
+    _hci.command_send(HCI_CMND_WLAN_IOCTL_GET_SCAN_RESULTS, ptr, WLAN_GET_SCAN_RESULTS_PARAMS_LEN);
+
+    // Wait for command complete event
+    _event.simplelink_wait_event(HCI_CMND_WLAN_IOCTL_GET_SCAN_RESULTS, results);
+
+    return(0);
+}
+
+int32_t cc3000_wlan::ioctl_set_scan_params(uint32_t enable,
+                                uint32_t min_dwell_time,
+                                uint32_t max_dwell_time,
+                                uint32_t num_probe_requests,
+                                uint32_t channel_mask,
+                                int32_t rssi_threshold,
+                                uint32_t snr_threshold,
+                                uint32_t default_tx_power,
+                                uint32_t *interval_list) {
+    uint32_t  uiRes;
+    uint8_t *ptr;
+    uint8_t *args;
+
+    ptr = _simple_link.get_transmit_buffer();
+    args = (ptr + HEADERS_SIZE_CMD);
+
+    // Fill in temporary command buffer
+    args = UINT32_TO_STREAM(args, 36);
+    args = UINT32_TO_STREAM(args, enable);
+    args = UINT32_TO_STREAM(args, min_dwell_time);
+    args = UINT32_TO_STREAM(args, max_dwell_time);
+    args = UINT32_TO_STREAM(args, num_probe_requests);
+    args = UINT32_TO_STREAM(args, channel_mask);
+    args = UINT32_TO_STREAM(args, rssi_threshold);
+    args = UINT32_TO_STREAM(args, snr_threshold);
+    args = UINT32_TO_STREAM(args, default_tx_power);
+    ARRAY_TO_STREAM(args, interval_list, sizeof(uint32_t) * SL_SET_SCAN_PARAMS_INTERVAL_LIST_SIZE);
+
+    // Initiate a HCI command
+    _hci.command_send(HCI_CMND_WLAN_IOCTL_SET_SCANPARAM, ptr, WLAN_SET_SCAN_PARAMS_LEN);
+
+    // Wait for command complete event
+    _event.simplelink_wait_event(HCI_CMND_WLAN_IOCTL_SET_SCANPARAM, &uiRes);
+
+    return(uiRes);
+}
+
+int32_t cc3000_wlan::ioctl_statusget(void) {
+    int32_t ret;
+    uint8_t *ptr;
+
+    ret = EFAIL;
+    ptr = _simple_link.get_transmit_buffer();
+
+    _hci.command_send(HCI_CMND_WLAN_IOCTL_STATUSGET,ptr, 0);
+
+    // Wait for command complete event
+    _event.simplelink_wait_event(HCI_CMND_WLAN_IOCTL_STATUSGET, &ret);
+
+    return(ret);
+}
+
+#else
+int32_t cc3000_wlan::wlan_add_profile(uint32_t sec_type,
+                      uint8_t *ssid,
+                      uint32_t ssid_length,
+                      uint8_t *b_ssid,
+                      uint32_t priority,
+                      uint32_t pairwise_cipher_or_tx_key_len,
+                      uint32_t group_cipher_tx_key_index,
+                      uint32_t key_mgmt,
+                      uint8_t* pf_or_key,
+                      uint32_t pass_phrase_length)
+{
+    return -1;
+}
+
+int32_t cc3000_wlan::connect(const uint8_t *ssid, int32_t ssid_len) {
+    int32_t ret;
+    uint8_t *ptr;
+    uint8_t *args;
+    uint8_t bssid_zero[] = {0, 0, 0, 0, 0, 0};
+
+    ret      = EFAIL;
+    ptr      = _simple_link.get_transmit_buffer();
+    args     = (ptr + HEADERS_SIZE_CMD);
+
+    // Fill in command buffer
+    args = UINT32_TO_STREAM(args, 0x0000001c);
+    args = UINT32_TO_STREAM(args, ssid_len);
+    args = UINT32_TO_STREAM(args, 0);
+    args = UINT32_TO_STREAM(args, 0x00000010 + ssid_len);
+    args = UINT32_TO_STREAM(args, 0);
+    args = UINT16_TO_STREAM(args, 0);
+
+    // padding shall be zeroed
+    ARRAY_TO_STREAM(args, bssid_zero, ETH_ALEN);
+    ARRAY_TO_STREAM(args, ssid, ssid_len);
+
+    // Initiate a HCI command
+    _hci.command_send(HCI_CMND_WLAN_CONNECT, ptr, WLAN_CONNECT_PARAM_LEN + ssid_len  - 1);
+
+    // Wait for command complete event
+    _event.simplelink_wait_event(HCI_CMND_WLAN_CONNECT, &ret);
+    errno = ret;
+
+    return(ret);
+}
+#endif
+
+
+
+#ifndef CC3000_UNENCRYPTED_SMART_CONFIG
+int32_t cc3000_wlan::smart_config_process(void) {
+    int32_t  returnValue;
+    uint32_t ssidLen, keyLen;
+    uint8_t *decKeyPtr;
+    uint8_t *ssidPtr;
+
+    // read the key from EEPROM - fileID 12
+    returnValue = aes_read_key(key);
+
+    if (returnValue != 0)
+        return returnValue;
+
+    // read the received data from fileID #13 and parse it according to the followings:
+    // 1) SSID LEN - not encrypted
+    // 2) SSID - not encrypted
+    // 3) KEY LEN - not encrypted. always 32 bytes long
+    // 4) Security type - not encrypted
+    // 5) KEY - encrypted together with true key length as the first byte in KEY
+    //     to elaborate, there are two corner cases:
+    //        1) the KEY is 32 bytes long. In this case, the first byte does not represent KEY length
+    //        2) the KEY is 31 bytes long. In this case, the first byte represent KEY length and equals 31
+    returnValue = nvmem_read(NVMEM_SHARED_MEM_FILEID, SMART_CONFIG_PROFILE_SIZE, 0, profileArray);
+
+    if (returnValue != 0)
+        return returnValue;
+
+    ssidPtr = &profileArray[1];
+
+    ssidLen = profileArray[0];
+
+    decKeyPtr = &profileArray[profileArray[0] + 3];
+
+    aes_decrypt(decKeyPtr, key);
+    if (profileArray[profileArray[0] + 1] > 16)
+        aes_decrypt((uint8_t *)(decKeyPtr + 16), key);
+
+    if (*(uint8_t *)(decKeyPtr +31) != 0)
+    {
+        if (*decKeyPtr == 31)
+        {
+            keyLen = 31;
+            decKeyPtr++;
+        }
+        else
+        {
+            keyLen = 32;
+        }
+    }
+    else
+    {
+        keyLen = *decKeyPtr;
+        decKeyPtr++;
+    }
+
+    // add a profile
+    switch (profileArray[profileArray[0] + 2])
+    {
+    case WLAN_SEC_UNSEC://None
+         {
+            returnValue = wlan_add_profile(profileArray[profileArray[0] + 2],     // security type
+                                           ssidPtr,                               // SSID
+                                           ssidLen,                               // SSID length
+                                           NULL,                                  // BSSID
+                                           1,                                     // Priority
+                                           0, 0, 0, 0, 0);
+
+            break;
+         }
+
+    case WLAN_SEC_WEP://WEP
+        {
+            returnValue = wlan_add_profile(profileArray[profileArray[0] + 2],     // security type
+                                           ssidPtr,                               // SSID
+                                           ssidLen,                               // SSID length
+                                           NULL,                                  // BSSID
+                                           1,                                     // Priority
+                                           keyLen,                                // KEY length
+                                           0,                                     // KEY index
+                                           0,
+                                           decKeyPtr,                             // KEY
+                                           0);
+
+            break;
+        }
+
+    case WLAN_SEC_WPA:  //WPA
+    case WLAN_SEC_WPA2: //WPA2
+        {
+            returnValue = wlan_add_profile(WLAN_SEC_WPA2,     // security type
+                                           ssidPtr,
+                                           ssidLen,
+                                           NULL,              // BSSID
+                                           1,                 // Priority
+                                           0x18,              // PairwiseCipher
+                                           0x1e,              // GroupCipher
+                                           2,                 // KEY management
+                                           decKeyPtr,         // KEY
+                                           keyLen);           // KEY length
+
+            break;
+        }
+    }
+
+    return returnValue;
+}
+#endif
+
+}