WINC1500 Wi-Fi Serial example.

#include "asf.h"
#include "main.h"
#include "driver/include/m2m_wifi.h"
#include "socket/include/socket.h"

Data Structures
struct	user_cmd
	User command structure. More...

Macros
Strings for printing banner.
#define	STRING_EOL "\r\n"

#define	STRING_HEADER

Macro for printing local/remote messages.
#define	PRINT_LOCAL_MSG(msg) printf("[Local] %s\r\n", msg)
	Local message printing. More...

#define	PRINT_REMOTE_MSG(msg) printf("\t[Remote] %s\r\n", msg)
	Remote message printing. More...

Command indicator.
#define	INDICATOR_STRING_LEN 2
	Length of command indicator string. More...

#define	LOCAL_CMD_INDICATOR "<<"
	Indicator string for local command. More...

#define	REMOTE_CMD_INDICATOR ">>"
	Indicator string for remote command. More...

Typedefs
typedef void(*	cmd_handler )(void *pMsg)
	Command handler function type. More...

Enumerations
enum	{ CMD_ID_LOCAL_START = 0, CMD_ID_L_HELP = CMD_ID_LOCAL_START, CMD_ID_L_CONNECT, CMD_ID_L_DISCONNECT, CMD_ID_LOCAL_END, CMD_ID_REMOTE_START = CMD_ID_LOCAL_END, CMD_ID_R_CONTROL = CMD_ID_REMOTE_START, CMD_ID_REMOTE_END, CMD_ID_MAX = CMD_ID_REMOTE_END }
	User command index. More...

Functions
static void	configure_console (void)
	Configure UART console with callback function. More...

void	connect_cmd_handler (void *pMsg)
	Connection command handler function. More...

void	control_cmd_handler (void *pMsg)
	Remote control command handler function. More...

void	disconnect_cmd_handler (void *pMsg)
	Socket close command handler function. More...

void	handle_input_message (void)
	Parse input message from serial interface. More...

void	help_cmd_handler (void *pMsg)
	Help command handler function. More...

int	main (void)
	Main application function. More...

uint8_t	parse_command (char *buffer, uint8_t remote)
	Check whether the message is a command and execute the command handler function. More...

static void	socket_cb (SOCKET sock, uint8_t u8Msg, void *pvMsg)
	Callback to get the Socket event. More...

static void	uart_callback (const struct usart_module *const module)
	Callback of USART input. More...

static void	wifi_cb (uint8 msg_type, void *msg_data)
	Callback to get the Wi-Fi status update. More...

Variables
static struct usart_module	cdc_uart_module
	UART module for debug. More...

static struct user_cmd	cmd_list [CMD_ID_MAX]
	User command list. More...

static uint8_t	gau8SocketBuffer [MAIN_CHAT_BUFFER_SIZE]
	Socket buffer definition. More...

static SOCKET	tcp_client_socket = -1
	TCP client socket. More...

static uint8_t	tcp_connected = 0
	Flag for sock connection state. More...

static SOCKET	tcp_server_socket = -1
	TCP server socket. More...

static char	uart_buffer [MAIN_CHAT_BUFFER_SIZE]
	UART buffer. More...

static uint16_t	uart_buffer_written = 0
	Written size to UART buffer. More...

static uint16_t	uart_ch_buffer
	Buffer of a character from the serial. More...

static uint8_t	wifi_connected = M2M_WIFI_DISCONNECTED
	Wi-Fi connection state. More...

#define INDICATOR_STRING_LEN 2

Length of command indicator string.

Referenced by handle_input_message(), and socket_cb().

#define LOCAL_CMD_INDICATOR "<<"

Indicator string for local command.

Referenced by handle_input_message().

#define PRINT_LOCAL_MSG ( msg ) printf("[Local] %s\r\n", msg)

Local message printing.

Referenced by handle_input_message().

#define PRINT_REMOTE_MSG ( msg ) printf("\t[Remote] %s\r\n", msg)

Remote message printing.

Referenced by socket_cb().

#define REMOTE_CMD_INDICATOR ">>"

Indicator string for remote command.

Referenced by handle_input_message(), and socket_cb().

#define STRING_EOL "\r\n"

#define STRING_HEADER

Value:

"-- WINC1500 Wi-Fi Serial example --"STRING_EOL \
    "-- "BOARD_NAME " --"STRING_EOL \
    "-- Compiled: "__DATE__ " "__TIME__ " --"STRING_EOL

Referenced by main().

typedef void(* cmd_handler)(void *pMsg)

Command handler function type.

anonymous enum

User command index.

Enumerator
CMD_ID_LOCAL_START
CMD_ID_L_HELP	Help command index.
CMD_ID_L_CONNECT	Connect command index.
CMD_ID_L_DISCONNECT	Close command index.
CMD_ID_LOCAL_END
CMD_ID_REMOTE_START
CMD_ID_R_CONTROL	Control remote device command index.
CMD_ID_REMOTE_END
CMD_ID_MAX

static void configure_console ( void )

static

Configure UART console with callback function.

References usart_config::baudrate, cdc_uart_module, usart_config::mux_setting, usart_config::pinmux_pad0, usart_config::pinmux_pad1, usart_config::pinmux_pad2, usart_config::pinmux_pad3, uart_callback(), USART_CALLBACK_BUFFER_RECEIVED, usart_enable(), usart_enable_callback(), usart_get_config_defaults(), and usart_register_callback().

Referenced by main().

void connect_cmd_handler ( void * pMsg )

Connection command handler function.

Retrieve IP address from the argument, create TCP client socket and connect to the remote device with the IP.

Parameters

[in] pMsg Pointer to the remote IP address string.

References _htons, AF_INET, close(), connect(), MAIN_WIFI_M2M_SERVER_PORT, nmi_inet_addr(), in_addr::s_addr, sockaddr_in::sin_addr, sockaddr_in::sin_family, sockaddr_in::sin_port, SOCK_STREAM, socket(), and tcp_client_socket.

void control_cmd_handler ( void * pMsg )

Remote control command handler function.

Parameters

[in] pMsg Pointer to the option string.

References port_pin_set_output_level().

void disconnect_cmd_handler ( void * pMsg )

Socket close command handler function.

Close client socket.

Parameters

[in] pMsg Not used.

References close(), tcp_client_socket, and tcp_connected.

Referenced by socket_cb().

void handle_input_message ( void )

Parse input message from serial interface.

Check whether the message is a command or send the message to the remote device.

References i, INDICATOR_STRING_LEN, LOCAL_CMD_INDICATOR, MAIN_CHAT_BUFFER_SIZE, parse_command(), PRINT_LOCAL_MSG, REMOTE_CMD_INDICATOR, send(), tcp_client_socket, tcp_connected, uart_buffer, and uart_buffer_written.

Referenced by main().

void help_cmd_handler ( void * pMsg )

Help command handler function.

Print usage message.

Parameters

[in] pMsg Not used.

int main ( void )

Main application function.

Application entry point. Initialize board and WINC1500 Wi-Fi module. Read input data from serial interface and sent it to the remote device.

Returns: program return value.

References _htons, AF_INET, bind(), cdc_uart_module, configure_console(), handle_input_message(), M2M_SUCCESS, M2M_WIFI_CH_ALL, m2m_wifi_connect(), M2M_WIFI_CONNECTED, m2m_wifi_handle_events(), m2m_wifi_init(), MAIN_WIFI_M2M_SERVER_PORT, MAIN_WLAN_AUTH, MAIN_WLAN_PSK, MAIN_WLAN_SSID, nm_bsp_init(), NULL, tstrWifiInitParam::pfAppWifiCb, registerSocketCallback(), in_addr::s_addr, sockaddr_in::sin_addr, sockaddr_in::sin_family, sockaddr_in::sin_port, SOCK_STREAM, socket(), socket_cb(), socketInit(), STRING_HEADER, system_init(), tcp_server_socket, uart_ch_buffer, usart_read_job(), wifi_cb(), and wifi_connected.

uint8_t parse_command	(	char *	buffer,
		uint8_t	remote
	)

Check whether the message is a command and execute the command handler function.

Parameters

[in]	buffer	Pointer to the input message buffer.
[in]	remote	If local device command then 0 otherwise 1.

References user_cmd::cmd_handler, CMD_ID_LOCAL_END, CMD_ID_LOCAL_START, CMD_ID_MAX, CMD_ID_REMOTE_END, CMD_ID_REMOTE_START, i, and MAIN_CHAT_BUFFER_SIZE.

Referenced by handle_input_message(), and socket_cb().

static void socket_cb	(	SOCKET	sock,
		uint8_t	u8Msg,
		void *	pvMsg
	)

static

Callback to get the Socket event.

Parameters

[in]	sock	Socket descriptor.
[in]	u8Msg	Type of Socket notification. Possible types are: SOCKET_MSG_CONNECT SOCKET_MSG_BIND SOCKET_MSG_LISTEN SOCKET_MSG_ACCEPT SOCKET_MSG_RECV SOCKET_MSG_SEND SOCKET_MSG_SENDTO SOCKET_MSG_RECVFROM
[in]	pvMsg	A structure contains notification informations.

References accept(), close(), disconnect_cmd_handler(), gau8SocketBuffer, INDICATOR_STRING_LEN, listen(), NULL, parse_command(), PRINT_REMOTE_MSG, tstrSocketRecvMsg::pu8Buffer, recv(), REMOTE_CMD_INDICATOR, tstrSocketRecvMsg::s16BufferSize, tstrSocketConnectMsg::s8Error, tstrSocketAcceptMsg::sock, SOCKET_MSG_ACCEPT, SOCKET_MSG_BIND, SOCKET_MSG_CONNECT, SOCKET_MSG_LISTEN, SOCKET_MSG_RECV, SOCKET_MSG_SEND, tstrSocketBindMsg::status, tstrSocketListenMsg::status, tcp_client_socket, tcp_connected, and tcp_server_socket.

Referenced by main().

static void uart_callback ( const struct usart_module *const module )

static

Callback of USART input.

Parameters

[in] module USART module structure.

References MAIN_CHAT_BUFFER_SIZE, uart_buffer, uart_buffer_written, and uart_ch_buffer.

Referenced by configure_console().

static void wifi_cb	(	uint8	msg_type,
		void *	msg_data
	)

static

Callback to get the Wi-Fi status update.

Parameters

[in]	msg_type	Type of Wi-Fi notification. Possible types are: M2M_WIFI_RESP_CURRENT_RSSI M2M_WIFI_RESP_CON_STATE_CHANGED M2M_WIFI_RESP_CONNTION_STATE M2M_WIFI_RESP_SCAN_DONE M2M_WIFI_RESP_SCAN_RESULT M2M_WIFI_REQ_WPS M2M_WIFI_RESP_IP_CONFIGURED M2M_WIFI_RESP_IP_CONFLICT M2M_WIFI_RESP_P2P M2M_WIFI_RESP_AP M2M_WIFI_RESP_CLIENT_INFO
[in]	msg_data	A pointer to a buffer containing the notification parameters (if any). It should be casted to the correct data type corresponding to the notification type. Existing types are: tstrM2mWifiStateChanged tstrM2MWPSInfo tstrM2MP2pResp tstrM2MAPResp tstrM2mScanDone tstrM2mWifiscanResult

References M2M_WIFI_CH_ALL, m2m_wifi_connect(), M2M_WIFI_CONNECTED, M2M_WIFI_DISCONNECTED, M2M_WIFI_REQ_DHCP_CONF, m2m_wifi_request_dhcp_client(), M2M_WIFI_RESP_CON_STATE_CHANGED, MAIN_WLAN_AUTH, MAIN_WLAN_PSK, MAIN_WLAN_SSID, tstrM2mWifiStateChanged::u8CurrState, and wifi_connected.

Referenced by main().

struct usart_module cdc_uart_module

static

UART module for debug.

struct user_cmd cmd_list[CMD_ID_MAX]

static

Initial value:

= {
    
    {"help", help_cmd_handler},               
    {"connect", connect_cmd_handler},        
    {"disconnect", disconnect_cmd_handler},  
    
    {"control", control_cmd_handler}     
}