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reference/common/network_if.c

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2019-10-09 11:45:38 +00:00
//*****************************************************************************
// network_if.c
//
// Networking interface functions for CC3200 device
//
// Copyright (C) 2014 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 <string.h>
#include <stdlib.h>
// Simplelink includes
#include "simplelink.h"
// driverlib includes
#include "hw_types.h"
#include "timer.h"
#include "rom.h"
#include "rom_map.h"
#include "utils.h"
// free-rtos/TI-rtos include
#ifdef SL_PLATFORM_MULTI_THREADED
#include "osi.h"
#endif
// common interface includes
#include "network_if.h"
#ifndef NOTERM
#include "uart_if.h"
#endif
#include "timer_if.h"
#include "common.h"
// Network App specific status/error codes which are used only in this file
typedef enum{
// Choosing this number to avoid overlap w/ host-driver's error codes
DEVICE_NOT_IN_STATION_MODE = -0x7F0,
DEVICE_NOT_IN_AP_MODE = DEVICE_NOT_IN_STATION_MODE - 1,
DEVICE_NOT_IN_P2P_MODE = DEVICE_NOT_IN_AP_MODE - 1,
STATUS_CODE_MAX = -0xBB8
}e_NetAppStatusCodes;
//*****************************************************************************
// GLOBAL VARIABLES -- Start
//*****************************************************************************
volatile unsigned long g_ulStatus = 0; /* SimpleLink Status */
unsigned long g_ulStaIp = 0; /* Station IP address */
unsigned long g_ulGatewayIP = 0; /* Network Gateway IP address */
unsigned char g_ucConnectionSSID[SSID_LEN_MAX+1]; /* Connection SSID */
unsigned char g_ucConnectionBSSID[BSSID_LEN_MAX]; /* Connection BSSID */
volatile unsigned short g_usConnectIndex; /* Connection time delay index */
const char pcDigits[] = "0123456789"; /* variable used by itoa function */
//*****************************************************************************
// GLOBAL VARIABLES -- End
//*****************************************************************************
#ifdef USE_FREERTOS
//*****************************************************************************
// FreeRTOS User Hook Functions enabled in FreeRTOSConfig.h
//*****************************************************************************
//*****************************************************************************
//
//! \brief Application defined hook (or callback) function - assert
//!
//! \param[in] pcFile - Pointer to the File Name
//! \param[in] ulLine - Line Number
//!
//! \return none
//!
//*****************************************************************************
void
vAssertCalled( const char *pcFile, unsigned long ulLine )
{
//Handle Assert here
while(1)
{
}
}
//*****************************************************************************
//
//! \brief Application defined idle task hook
//!
//! \param none
//!
//! \return none
//!
//*****************************************************************************
void
vApplicationIdleHook( void)
{
//Handle Idle Hook for Profiling, Power Management etc
}
//*****************************************************************************
//
//! \brief Application defined malloc failed hook
//!
//! \param none
//!
//! \return none
//!
//*****************************************************************************
void vApplicationMallocFailedHook()
{
//Handle Memory Allocation Errors
while(1)
{
}
}
//*****************************************************************************
//
//! \brief Application defined stack overflow hook
//!
//! \param none
//!
//! \return none
//!
//*****************************************************************************
void vApplicationStackOverflowHook( OsiTaskHandle *pxTask,
signed char *pcTaskName)
{
//Handle FreeRTOS Stack Overflow
while(1)
{
}
}
#endif //USE_FREERTOS
//*****************************************************************************
// SimpleLink Asynchronous Event Handlers -- Start
//*****************************************************************************
//*****************************************************************************
//
//! \brief The Function Handles WLAN Events
//!
//! \param[in] pSlWlanEvent - Pointer to WLAN Event Info
//!
//! \return None
//!
//*****************************************************************************
void SimpleLinkWlanEventHandler(SlWlanEvent_t *pSlWlanEvent)
{
if(pSlWlanEvent == NULL)
{
return;
}
switch(((SlWlanEvent_t*)pSlWlanEvent)->Event)
{
case SL_WLAN_CONNECT_EVENT:
{
SET_STATUS_BIT(g_ulStatus, STATUS_BIT_CONNECTION);
CLR_STATUS_BIT(g_ulStatus, STATUS_BIT_CONNECTION_FAILED);
//
// Information about the connected AP (like name, MAC etc) will be
// available in 'slWlanConnectAsyncResponse_t'-Applications
// can use it if required
//
// slWlanConnectAsyncResponse_t *pEventData = NULL;
// pEventData = &pSlWlanEvent->EventData.STAandP2PModeWlanConnected;
//
// Copy new connection SSID and BSSID to global parameters
memcpy(g_ucConnectionSSID,pSlWlanEvent->EventData.
STAandP2PModeWlanConnected.ssid_name,
pSlWlanEvent->EventData.STAandP2PModeWlanConnected.ssid_len);
memcpy(g_ucConnectionBSSID,
pSlWlanEvent->EventData.STAandP2PModeWlanConnected.bssid,
SL_BSSID_LENGTH);
UART_PRINT("[WLAN EVENT] STA Connected to the AP: %s , BSSID: "
"%x:%x:%x:%x:%x:%x\n\r", g_ucConnectionSSID,
g_ucConnectionBSSID[0], g_ucConnectionBSSID[1],
g_ucConnectionBSSID[2], g_ucConnectionBSSID[3],
g_ucConnectionBSSID[4], g_ucConnectionBSSID[5]);
}
break;
case SL_WLAN_DISCONNECT_EVENT:
{
slWlanConnectAsyncResponse_t* pEventData = NULL;
CLR_STATUS_BIT(g_ulStatus, STATUS_BIT_CONNECTION);
CLR_STATUS_BIT(g_ulStatus, STATUS_BIT_IP_AQUIRED);
pEventData = &pSlWlanEvent->EventData.STAandP2PModeDisconnected;
// If the user has initiated 'Disconnect' request,
//'reason_code' is SL_WLAN_DISCONNECT_USER_INITIATED_DISCONNECTION
if(SL_WLAN_DISCONNECT_USER_INITIATED_DISCONNECTION == pEventData->reason_code)
{
UART_PRINT("[WLAN EVENT]Device disconnected from the AP: %s, "
"BSSID: %x:%x:%x:%x:%x:%x on application's request "
"\n\r", g_ucConnectionSSID,g_ucConnectionBSSID[0],
g_ucConnectionBSSID[1],g_ucConnectionBSSID[2],
g_ucConnectionBSSID[3],g_ucConnectionBSSID[4],
g_ucConnectionBSSID[5]);
}
else
{
UART_PRINT("[WLAN ERROR]Device disconnected from the AP AP: %s,"
" BSSID: %x:%x:%x:%x:%x:%x on an ERROR..!! \n\r",
g_ucConnectionSSID,g_ucConnectionBSSID[0],
g_ucConnectionBSSID[1],g_ucConnectionBSSID[2],
g_ucConnectionBSSID[3],g_ucConnectionBSSID[4],
g_ucConnectionBSSID[5]);
}
memset(g_ucConnectionSSID,0,sizeof(g_ucConnectionSSID));
memset(g_ucConnectionBSSID,0,sizeof(g_ucConnectionBSSID));
}
break;
case SL_WLAN_STA_CONNECTED_EVENT:
{
// when device is in AP mode and any client connects to device cc3xxx
SET_STATUS_BIT(g_ulStatus, STATUS_BIT_CONNECTION);
CLR_STATUS_BIT(g_ulStatus, STATUS_BIT_CONNECTION_FAILED);
//
// Information about the connected client (like SSID, MAC etc) will
// be available in 'slPeerInfoAsyncResponse_t' - Applications
// can use it if required
//
// slPeerInfoAsyncResponse_t *pEventData = NULL;
// pEventData = &pSlWlanEvent->EventData.APModeStaConnected;
//
}
break;
case SL_WLAN_STA_DISCONNECTED_EVENT:
{
// when client disconnects from device (AP)
CLR_STATUS_BIT(g_ulStatus, STATUS_BIT_CONNECTION);
CLR_STATUS_BIT(g_ulStatus, STATUS_BIT_IP_LEASED);
//
// Information about the connected client (like SSID, MAC etc) will
// be available in 'slPeerInfoAsyncResponse_t' - Applications
// can use it if required
//
// slPeerInfoAsyncResponse_t *pEventData = NULL;
// pEventData = &pSlWlanEvent->EventData.APModestaDisconnected;
//
}
break;
case SL_WLAN_SMART_CONFIG_COMPLETE_EVENT:
{
SET_STATUS_BIT(g_ulStatus, STATUS_BIT_SMARTCONFIG_START);
//
// Information about the SmartConfig details (like Status, SSID,
// Token etc) will be available in 'slSmartConfigStartAsyncResponse_t'
// - Applications can use it if required
//
// slSmartConfigStartAsyncResponse_t *pEventData = NULL;
// pEventData = &pSlWlanEvent->EventData.smartConfigStartResponse;
//
}
break;
case SL_WLAN_SMART_CONFIG_STOP_EVENT:
{
// SmartConfig operation finished
CLR_STATUS_BIT(g_ulStatus, STATUS_BIT_SMARTCONFIG_START);
//
// Information about the SmartConfig details (like Status, padding
// etc) will be available in 'slSmartConfigStopAsyncResponse_t' -
// Applications can use it if required
//
// slSmartConfigStopAsyncResponse_t *pEventData = NULL;
// pEventData = &pSlWlanEvent->EventData.smartConfigStopResponse;
//
}
break;
case SL_WLAN_P2P_DEV_FOUND_EVENT:
{
SET_STATUS_BIT(g_ulStatus, STATUS_BIT_P2P_DEV_FOUND);
//
// Information about P2P config details (like Peer device name, own
// SSID etc) will be available in 'slPeerInfoAsyncResponse_t' -
// Applications can use it if required
//
// slPeerInfoAsyncResponse_t *pEventData = NULL;
// pEventData = &pSlWlanEvent->EventData.P2PModeDevFound;
//
}
break;
case SL_WLAN_P2P_NEG_REQ_RECEIVED_EVENT:
{
SET_STATUS_BIT(g_ulStatus, STATUS_BIT_P2P_REQ_RECEIVED);
//
// Information about P2P Negotiation req details (like Peer device
// name, own SSID etc) will be available in 'slPeerInfoAsyncResponse_t'
// - Applications can use it if required
//
// slPeerInfoAsyncResponse_t *pEventData = NULL;
// pEventData = &pSlWlanEvent->EventData.P2PModeNegReqReceived;
//
}
break;
case SL_WLAN_CONNECTION_FAILED_EVENT:
{
// If device gets any connection failed event
SET_STATUS_BIT(g_ulStatus, STATUS_BIT_CONNECTION_FAILED);
}
break;
default:
{
UART_PRINT("[WLAN EVENT] Unexpected event \n\r");
}
break;
}
}
//*****************************************************************************
//
//! \brief This function handles network events such as IP acquisition, IP
//! leased, IP released etc.
//!
//! \param pNetAppEvent - Pointer indicating device acquired IP
//!
//! \return None
//!
//*****************************************************************************
void SimpleLinkNetAppEventHandler(SlNetAppEvent_t *pNetAppEvent)
{
if(pNetAppEvent == NULL)
{
return;
}
switch(pNetAppEvent->Event)
{
case SL_NETAPP_IPV4_IPACQUIRED_EVENT:
case SL_NETAPP_IPV6_IPACQUIRED_EVENT:
{
SET_STATUS_BIT(g_ulStatus, STATUS_BIT_IP_AQUIRED);
UART_PRINT("[NETAPP EVENT] IP acquired by the device\n\r");
//
// Information about the IPv4 & IPv6 details (like IP, gateway,dns
// etc) will be available in 'SlIpV4AcquiredAsync_t /
// SlIpV6AcquiredAsync_t' - Applications can use it if required
//
// For IPv4:
//
// SlIpV4AcquiredAsync_t *pEventData = NULL;
// pEventData = &pNetAppEvent->EventData.ipAcquiredV4;
//
// For IPv6:
//
// SlIpV6AcquiredAsync_t *pEventData = NULL;
// pEventData = &pNetAppEvent->EventData.ipAcquiredV6;
//
}
break;
case SL_NETAPP_IP_LEASED_EVENT:
{
SET_STATUS_BIT(g_ulStatus, STATUS_BIT_IP_LEASED);
UART_PRINT("[NETAPP EVENT] IP leased to a client\n\r");
//
// Information about the IP-Leased details(like IP-Leased,lease-time,
// mac etc) will be available in 'SlIpLeasedAsync_t' - Applications
// can use it if required
//
// SlIpLeasedAsync_t *pEventData = NULL;
// pEventData = &pNetAppEvent->EventData.ipLeased;
//
SlIpLeasedAsync_t *pEventData = NULL;
pEventData = &pNetAppEvent->EventData.ipLeased;
g_ulStaIp = pEventData->ip_address;
}
break;
case SL_NETAPP_IP_RELEASED_EVENT:
{
CLR_STATUS_BIT(g_ulStatus, STATUS_BIT_IP_LEASED);
UART_PRINT("[NETAPP EVENT] IP released from a client\n\r");
//
// Information about the IP-Released details (like IP-address, mac
// etc) will be available in 'SlIpReleasedAsync_t' - Applications
// can use it if required
//
// SlIpReleasedAsync_t *pEventData = NULL;
// pEventData = &pNetAppEvent->EventData.ipReleased;
//
}
break;
default:
{
UART_PRINT("[NETAPP EVENT] Unexpected event \n\r");
}
break;
}
}
//*****************************************************************************
//
//! \brief This function handles General Events
//!
//! \param[in] pDevEvent - Pointer to General Event Info
//!
//! \return None
//!
//*****************************************************************************
void SimpleLinkGeneralEventHandler(SlDeviceEvent_t *pDevEvent)
{
if(pDevEvent == NULL)
{
return;
}
//
// Most of the general errors are not FATAL are are to be handled
// appropriately by the application
//
UART_PRINT("[GENERAL EVENT] - ID=[%d] Sender=[%d]\n\n",
pDevEvent->EventData.deviceEvent.status,
pDevEvent->EventData.deviceEvent.sender);
}
//*****************************************************************************
//
//! This function handles socket events indication
//!
//! \param[in] pSock - Pointer to Socket Event Info
//!
//! \return None
//!
//*****************************************************************************
void SimpleLinkSockEventHandler(SlSockEvent_t *pSock)
{
if(pSock == NULL)
{
return;
}
//
// This application doesn't work w/ socket - Events are not expected
//
switch( pSock->Event )
{
case SL_SOCKET_TX_FAILED_EVENT:
switch( pSock->socketAsyncEvent.SockTxFailData.status)
{
case SL_ECLOSE:
UART_PRINT("[SOCK ERROR] - close socket (%d) operation "
"failed to transmit all queued packets\n\n",
pSock->socketAsyncEvent.SockTxFailData.sd);
break;
default:
UART_PRINT("[SOCK ERROR] - TX FAILED : socket %d , reason "
"(%d) \n\n",
pSock->socketAsyncEvent.SockTxFailData.sd, pSock->socketAsyncEvent.SockTxFailData.status);
break;
}
break;
case SL_SOCKET_ASYNC_EVENT:
switch(pSock->socketAsyncEvent.SockAsyncData.type)
{
case SSL_ACCEPT:/*accept failed due to ssl issue ( tcp pass)*/
UART_PRINT("[SOCK ERROR] - close socket (%d) operation"
"accept failed due to ssl issue\n\r",
pSock->socketAsyncEvent.SockAsyncData.sd);
break;
case RX_FRAGMENTATION_TOO_BIG:
UART_PRINT("[SOCK ERROR] -close scoket (%d) operation"
"connection less mode, rx packet fragmentation\n\r"
"> 16K, packet is being released",
pSock->socketAsyncEvent.SockAsyncData.sd);
break;
case OTHER_SIDE_CLOSE_SSL_DATA_NOT_ENCRYPTED:
UART_PRINT("[SOCK ERROR] -close socket (%d) operation"
"remote side down from secure to unsecure\n\r",
pSock->socketAsyncEvent.SockAsyncData.sd);
break;
default:
UART_PRINT("unknown sock async event: %d\n\r",
pSock->socketAsyncEvent.SockAsyncData.type);
}
break;
default:
UART_PRINT("[SOCK EVENT] - Unexpected Event [%x0x]\n\n",pSock->Event);
break;
}
}
//*****************************************************************************
//
//! This function gets triggered when HTTP Server receives Application
//! defined GET and POST HTTP Tokens.
//!
//! \param pHttpServerEvent Pointer indicating http server event
//! \param pHttpServerResponse Pointer indicating http server response
//!
//! \return None
//!
//*****************************************************************************
void SimpleLinkHttpServerCallback(SlHttpServerEvent_t *pSlHttpServerEvent,
SlHttpServerResponse_t *pSlHttpServerResponse)
{
}
//*****************************************************************************
// SimpleLink Asynchronous Event Handlers -- End
//*****************************************************************************
//****************************************************************************
//
//! \brief This function initializes the application variables
//!
//! \param[in] None
//!
//! \return 0 on success, negative error-code on error
//
//****************************************************************************
void InitializeAppVariables()
{
g_ulStatus = 0;
g_ulStaIp = 0;
g_ulGatewayIP = 0;
memset(g_ucConnectionSSID,0,sizeof(g_ucConnectionSSID));
memset(g_ucConnectionBSSID,0,sizeof(g_ucConnectionBSSID));
}
//*****************************************************************************
//! \brief This function puts the device in its default state. It:
//! - Set the mode to STATION
//! - Configures connection policy to Auto and AutoSmartConfig
//! - Deletes all the stored profiles
//! - Enables DHCP
//! - Disables Scan policy
//! - Sets Tx power to maximum
//! - Sets power policy to normal
//! - Unregister mDNS services
//! - Remove all filters
//!
//! \param none
//! \return On success, zero is returned. On error, negative is returned
//*****************************************************************************
long ConfigureSimpleLinkToDefaultState()
{
SlVersionFull ver = {{0}};
_WlanRxFilterOperationCommandBuff_t RxFilterIdMask = {{0}};
unsigned char ucVal = 1;
unsigned char ucConfigOpt = 0;
unsigned char ucConfigLen = 0;
unsigned char ucPower = 0;
long lRetVal = -1;
long lMode = -1;
lMode = sl_Start(0, 0, 0);
ASSERT_ON_ERROR(lMode);
// If the device is not in station-mode, try configuring it in station-mode
if (ROLE_STA != lMode)
{
if (ROLE_AP == lMode)
{
// If the device is in AP mode, we need to wait for this event
// before doing anything
while(!IS_IP_ACQUIRED(g_ulStatus))
{
#ifndef SL_PLATFORM_MULTI_THREADED
_SlNonOsMainLoopTask();
#else
osi_Sleep(1);
#endif
}
}
// Switch to STA role and restart
lRetVal = sl_WlanSetMode(ROLE_STA);
ASSERT_ON_ERROR(lRetVal);
lRetVal = sl_Stop(0xFF);
ASSERT_ON_ERROR(lRetVal);
lRetVal = sl_Start(0, 0, 0);
ASSERT_ON_ERROR(lRetVal);
// Check if the device is in station again
if (ROLE_STA != lRetVal)
{
// We don't want to proceed if the device is not coming up in STA-mode
ASSERT_ON_ERROR(DEVICE_NOT_IN_STATION_MODE);
}
}
// Get the device's version-information
ucConfigOpt = SL_DEVICE_GENERAL_VERSION;
ucConfigLen = sizeof(ver);
lRetVal = sl_DevGet(SL_DEVICE_GENERAL_CONFIGURATION, &ucConfigOpt,
&ucConfigLen, (unsigned char *)(&ver));
ASSERT_ON_ERROR(lRetVal);
UART_PRINT("Host Driver Version: %s\n\r",SL_DRIVER_VERSION);
UART_PRINT("Build Version %d.%d.%d.%d.31.%d.%d.%d.%d.%d.%d.%d.%d\n\r",
ver.NwpVersion[0],ver.NwpVersion[1],ver.NwpVersion[2],ver.NwpVersion[3],
ver.ChipFwAndPhyVersion.FwVersion[0],ver.ChipFwAndPhyVersion.FwVersion[1],
ver.ChipFwAndPhyVersion.FwVersion[2],ver.ChipFwAndPhyVersion.FwVersion[3],
ver.ChipFwAndPhyVersion.PhyVersion[0],ver.ChipFwAndPhyVersion.PhyVersion[1],
ver.ChipFwAndPhyVersion.PhyVersion[2],ver.ChipFwAndPhyVersion.PhyVersion[3]);
// Set connection policy to Auto + SmartConfig
// (Device's default connection policy)
lRetVal = sl_WlanPolicySet(SL_POLICY_CONNECTION,
SL_CONNECTION_POLICY(1, 0, 0, 0, 1), NULL, 0);
ASSERT_ON_ERROR(lRetVal);
// Remove all profiles
lRetVal = sl_WlanProfileDel(0xFF);
ASSERT_ON_ERROR(lRetVal);
//
// Device in station-mode. Disconnect previous connection if any
// The function returns 0 if 'Disconnected done', negative number if already
// disconnected Wait for 'disconnection' event if 0 is returned, Ignore
// other return-codes
//
lRetVal = sl_WlanDisconnect();
if(0 == lRetVal)
{
// Wait
while(IS_CONNECTED(g_ulStatus))
{
#ifndef SL_PLATFORM_MULTI_THREADED
_SlNonOsMainLoopTask();
#else
osi_Sleep(1);
#endif
}
}
// Enable DHCP client
lRetVal = sl_NetCfgSet(SL_IPV4_STA_P2P_CL_DHCP_ENABLE,1,1,&ucVal);
ASSERT_ON_ERROR(lRetVal);
// Disable scan
ucConfigOpt = SL_SCAN_POLICY(0);
lRetVal = sl_WlanPolicySet(SL_POLICY_SCAN , ucConfigOpt, NULL, 0);
ASSERT_ON_ERROR(lRetVal);
// Set Tx power level for station mode
// Number between 0-15, as dB offset from max power - 0 will set max power
ucPower = 0;
lRetVal = sl_WlanSet(SL_WLAN_CFG_GENERAL_PARAM_ID,
WLAN_GENERAL_PARAM_OPT_STA_TX_POWER, 1, (unsigned char *)&ucPower);
ASSERT_ON_ERROR(lRetVal);
// Set PM policy to normal
lRetVal = sl_WlanPolicySet(SL_POLICY_PM , SL_NORMAL_POLICY, NULL, 0);
ASSERT_ON_ERROR(lRetVal);
// Unregister mDNS services
lRetVal = sl_NetAppMDNSUnRegisterService(0, 0);
ASSERT_ON_ERROR(lRetVal);
// Remove all 64 filters (8*8)
memset(RxFilterIdMask.FilterIdMask, 0xFF, 8);
lRetVal = sl_WlanRxFilterSet(SL_REMOVE_RX_FILTER, (_u8 *)&RxFilterIdMask,
sizeof(_WlanRxFilterOperationCommandBuff_t));
ASSERT_ON_ERROR(lRetVal);
lRetVal = sl_Stop(SL_STOP_TIMEOUT);
ASSERT_ON_ERROR(lRetVal);
InitializeAppVariables();
return lRetVal; // Success
}
//*****************************************************************************
//
//! Network_IF_InitDriver
//! The function initializes a CC3200 device and triggers it to start operation
//!
//! \param uiMode (device mode in which device will be configured)
//!
//! \return 0 : sucess, -ve : failure
//
//*****************************************************************************
long
Network_IF_InitDriver(unsigned int uiMode)
{
long lRetVal = -1;
// Reset CC3200 Network State Machine
InitializeAppVariables();
//
// Following function configure the device to default state by cleaning
// the persistent settings stored in NVMEM (viz. connection profiles &
// policies, power policy etc)
//
// Applications may choose to skip this step if the developer is sure
// that the device is in its default state at start of application
//
// Note that all profiles and persistent settings that were done on the
// device will be lost
//
lRetVal = ConfigureSimpleLinkToDefaultState();
if(lRetVal < 0)
{
if (DEVICE_NOT_IN_STATION_MODE == lRetVal)
UART_PRINT("Failed to configure the device in its default state \n\r");
LOOP_FOREVER();
}
UART_PRINT("Device is configured in default state \n\r");
//
// Assumption is that the device is configured in station mode already
// and it is in its default state
//
lRetVal = sl_Start(NULL,NULL,NULL);
if (lRetVal < 0 || lRetVal != ROLE_STA)
{
UART_PRINT("Failed to start the device \n\r");
LOOP_FOREVER();
}
UART_PRINT("Started SimpleLink Device: STA Mode\n\r");
if(uiMode == ROLE_AP)
{
UART_PRINT("Switching to AP mode on application request\n\r");
// Switch to AP role and restart
lRetVal = sl_WlanSetMode(uiMode);
ASSERT_ON_ERROR(lRetVal);
lRetVal = sl_Stop(0xFF);
lRetVal = sl_Start(0, 0, 0);
ASSERT_ON_ERROR(lRetVal);
// Check if the device is up in AP Mode
if (ROLE_AP == lRetVal)
{
// If the device is in AP mode, we need to wait for this event
// before doing anything
while(!IS_IP_ACQUIRED(g_ulStatus))
{
#ifndef SL_PLATFORM_MULTI_THREADED
_SlNonOsMainLoopTask();
#else
osi_Sleep(1);
#endif
}
}
else
{
// We don't want to proceed if the device is not coming up in AP-mode
ASSERT_ON_ERROR(DEVICE_NOT_IN_AP_MODE);
}
UART_PRINT("Re-started SimpleLink Device: AP Mode\n\r");
}
else if(uiMode == ROLE_P2P)
{
UART_PRINT("Switching to P2P mode on application request\n\r");
// Switch to AP role and restart
lRetVal = sl_WlanSetMode(uiMode);
ASSERT_ON_ERROR(lRetVal);
lRetVal = sl_Stop(0xFF);
lRetVal = sl_Start(0, 0, 0);
ASSERT_ON_ERROR(lRetVal);
// Check if the device is in station again
if (ROLE_P2P != lRetVal)
{
// We don't want to proceed if the device is not coming up in P2P-mode
ASSERT_ON_ERROR(DEVICE_NOT_IN_P2P_MODE);
}
UART_PRINT("Re-started SimpleLink Device: P2P Mode\n\r");
}
else
{
// Device already started in STA-Mode
}
return 0;
}
//*****************************************************************************
//
//! Network_IF_DeInitDriver
//! The function de-initializes a CC3200 device
//!
//! \param None
//!
//! \return On success, zero is returned. On error, other
//
//*****************************************************************************
long
Network_IF_DeInitDriver(void)
{
long lRetVal = -1;
UART_PRINT("SL Disconnect...\n\r");
//
// Disconnect from the AP
//
lRetVal = Network_IF_DisconnectFromAP();
//
// Stop the simplelink host
//
sl_Stop(SL_STOP_TIMEOUT);
//
// Reset the state to uninitialized
//
Network_IF_ResetMCUStateMachine();
return lRetVal;
}
//*****************************************************************************
//
//! Network_IF_ConnectAP Connect to an Access Point using the specified SSID
//!
//! \param[in] pcSsid is a string of the AP's SSID
//! \param[in] SecurityParams is Security parameter for AP
//!
//! \return On success, zero is returned. On error, -ve value is returned
//
//*****************************************************************************
long
Network_IF_ConnectAP(char *pcSsid, SlSecParams_t SecurityParams)
{
#ifndef NOTERM
char acCmdStore[128];
unsigned short usConnTimeout;
unsigned char ucRecvdAPDetails;
#endif
long lRetVal;
unsigned long ulIP = 0;
unsigned long ulSubMask = 0;
unsigned long ulDefGateway = 0;
unsigned long ulDns = 0;
//
// Disconnect from the AP
//
Network_IF_DisconnectFromAP();
//
// This triggers the CC3200 to connect to specific AP
//
lRetVal = sl_WlanConnect((signed char *)pcSsid, strlen((const char *)pcSsid),
NULL, &SecurityParams, NULL);
ASSERT_ON_ERROR(lRetVal);
//
// Wait for ~10 sec to check if connection to desire AP succeeds
//
while(g_usConnectIndex < 15)
{
#ifndef SL_PLATFORM_MULTI_THREADED
_SlNonOsMainLoopTask();
#else
osi_Sleep(1);
#endif
MAP_UtilsDelay(8000000);
if(IS_CONNECTED(g_ulStatus) && IS_IP_ACQUIRED(g_ulStatus))
{
break;
}
g_usConnectIndex++;
}
#ifndef NOTERM
//
// Check and loop until AP connection successful, else ask new AP SSID name
//
while(!(IS_CONNECTED(g_ulStatus)) || !(IS_IP_ACQUIRED(g_ulStatus)))
{
//
// Disconnect the previous attempt
//
Network_IF_DisconnectFromAP();
CLR_STATUS_BIT(g_ulStatus, STATUS_BIT_CONNECTION);
CLR_STATUS_BIT(g_ulStatus, STATUS_BIT_IP_AQUIRED);
UART_PRINT("Device could not connect to %s\n\r",pcSsid);
do
{
ucRecvdAPDetails = 0;
UART_PRINT("\n\r\n\rPlease enter the AP(open) SSID name # ");
//
// Get the AP name to connect over the UART
//
lRetVal = GetCmd(acCmdStore, sizeof(acCmdStore));
if(lRetVal > 0)
{
// remove start/end spaces if any
lRetVal = TrimSpace(acCmdStore);
//
// Parse the AP name
//
strncpy(pcSsid, acCmdStore, lRetVal);
if(pcSsid != NULL)
{
ucRecvdAPDetails = 1;
pcSsid[lRetVal] = '\0';
}
}
}while(ucRecvdAPDetails == 0);
//
// Reset Security Parameters to OPEN security type
//
SecurityParams.Key = (signed char *)"";
SecurityParams.KeyLen = 0;
SecurityParams.Type = SL_SEC_TYPE_OPEN;
UART_PRINT("\n\rTrying to connect to AP: %s ...\n\r",pcSsid);
//
// Get the current timer tick and setup the timeout accordingly
//
usConnTimeout = g_usConnectIndex + 15;
//
// This triggers the CC3200 to connect to specific AP
//
lRetVal = sl_WlanConnect((signed char *)pcSsid,
strlen((const char *)pcSsid), NULL,
&SecurityParams, NULL);
ASSERT_ON_ERROR(lRetVal);
//
// Wait ~10 sec to check if connection to specifed AP succeeds
//
while(!(IS_CONNECTED(g_ulStatus)) || !(IS_IP_ACQUIRED(g_ulStatus)))
{
#ifndef SL_PLATFORM_MULTI_THREADED
_SlNonOsMainLoopTask();
#else
osi_Sleep(1);
#endif
MAP_UtilsDelay(8000000);
if(g_usConnectIndex >= usConnTimeout)
{
break;
}
g_usConnectIndex++;
}
}
#endif
//
// Put message on UART
//
UART_PRINT("\n\rDevice has connected to %s\n\r",pcSsid);
//
// Get IP address
//
lRetVal = Network_IF_IpConfigGet(&ulIP,&ulSubMask,&ulDefGateway,&ulDns);
ASSERT_ON_ERROR(lRetVal);
//
// Send the information
//
UART_PRINT("Device IP Address is %d.%d.%d.%d \n\r\n\r",
SL_IPV4_BYTE(ulIP, 3),SL_IPV4_BYTE(ulIP, 2),
SL_IPV4_BYTE(ulIP, 1),SL_IPV4_BYTE(ulIP, 0));
return 0;
}
//*****************************************************************************
//
//! Disconnect Disconnects from an Access Point
//!
//! \param none
//!
//! \return 0 disconnected done, other already disconnected
//
//*****************************************************************************
long
Network_IF_DisconnectFromAP()
{
long lRetVal = 0;
if (IS_CONNECTED(g_ulStatus))
{
lRetVal = sl_WlanDisconnect();
if(0 == lRetVal)
{
// Wait
while(IS_CONNECTED(g_ulStatus))
{
#ifndef SL_PLATFORM_MULTI_THREADED
_SlNonOsMainLoopTask();
#else
osi_Sleep(1);
#endif
}
return lRetVal;
}
else
{
return lRetVal;
}
}
else
{
return lRetVal;
}
}
//*****************************************************************************
//
//! Network_IF_IpConfigGet Get the IP Address of the device.
//!
//! \param pulIP IP Address of Device
//! \param pulSubnetMask Subnetmask of Device
//! \param pulDefaultGateway Default Gateway value
//! \param pulDNSServer DNS Server
//!
//! \return On success, zero is returned. On error, -1 is returned
//
//*****************************************************************************
long
Network_IF_IpConfigGet(unsigned long *pulIP, unsigned long *pulSubnetMask,
unsigned long *pulDefaultGateway, unsigned long *pulDNSServer)
{
unsigned char isDhcp;
unsigned char len = sizeof(SlNetCfgIpV4Args_t);
long lRetVal = -1;
SlNetCfgIpV4Args_t ipV4 = {0};
lRetVal = sl_NetCfgGet(SL_IPV4_STA_P2P_CL_GET_INFO,&isDhcp,&len,
(unsigned char *)&ipV4);
ASSERT_ON_ERROR(lRetVal);
*pulIP=ipV4.ipV4;
*pulSubnetMask=ipV4.ipV4Mask;
*pulDefaultGateway=ipV4.ipV4Gateway;
*pulDefaultGateway=ipV4.ipV4DnsServer;
return lRetVal;
}
//*****************************************************************************
//
//! Network_IF_GetHostIP
//!
//! \brief This function obtains the server IP address using a DNS lookup
//!
//! \param[in] pcHostName The server hostname
//! \param[out] pDestinationIP This parameter is filled with host IP address.
//!
//! \return On success, +ve value is returned. On error, -ve value is returned
//!
//
//*****************************************************************************
long Network_IF_GetHostIP( char* pcHostName,unsigned long * pDestinationIP )
{
long lStatus = 0;
lStatus = sl_NetAppDnsGetHostByName((signed char *) pcHostName,
strlen(pcHostName),
pDestinationIP, SL_AF_INET);
ASSERT_ON_ERROR(lStatus);
UART_PRINT("Get Host IP succeeded.\n\rHost: %s IP: %d.%d.%d.%d \n\r\n\r",
pcHostName, SL_IPV4_BYTE(*pDestinationIP,3),
SL_IPV4_BYTE(*pDestinationIP,2),
SL_IPV4_BYTE(*pDestinationIP,1),
SL_IPV4_BYTE(*pDestinationIP,0));
return lStatus;
}
//*****************************************************************************
//
//! \brief Reset state from the state machine
//!
//! \param None
//!
//! \return none
//!
//*****************************************************************************
void
Network_IF_ResetMCUStateMachine()
{
g_ulStatus = 0;
}
//*****************************************************************************
//
//! \brief Return the current state bits
//!
//! \param None
//!
//! \return none
//!
//
//*****************************************************************************
unsigned long
Network_IF_CurrentMCUState()
{
return g_ulStatus;
}
//*****************************************************************************
//
//! \brief sets a state from the state machine
//!
//! \param cStat Status of State Machine defined in e_StatusBits
//!
//! \return none
//!
//*****************************************************************************
void
Network_IF_SetMCUMachineState(char cStat)
{
SET_STATUS_BIT(g_ulStatus, cStat);
}
//*****************************************************************************
//
//! \brief Unsets a state from the state machine
//!
//! \param cStat Status of State Machine defined in e_StatusBits
//!
//! \return none
//!
//*****************************************************************************
void
Network_IF_UnsetMCUMachineState(char cStat)
{
CLR_STATUS_BIT(g_ulStatus, cStat);
}
//*****************************************************************************
//
//! itoa
//!
//! @brief Convert integer to ASCII in decimal base
//!
//! @param cNum is input integer number to convert
//! @param cString is output string
//!
//! @return number of ASCII parameters
//!
//!
//
//*****************************************************************************
unsigned short itoa(short cNum, char *cString)
{
char* ptr;
short uTemp = cNum;
unsigned short length;
// value 0 is a special case
if (cNum == 0)
{
length = 1;
*cString = '0';
return length;
}
// Find out the length of the number, in decimal base
length = 0;
while (uTemp > 0)
{
uTemp /= 10;
length++;
}
// Do the actual formatting, right to left
uTemp = cNum;
ptr = cString + length;
while (uTemp > 0)
{
--ptr;
*ptr = pcDigits[uTemp % 10];
uTemp /= 10;
}
return length;
}
//*****************************************************************************
//
// Close the Doxygen group.
//! @}
//
//*****************************************************************************
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