WINC1500 Power Profiling APP.

#include "asf.h"
#include "driver/include/m2m_wifi.h"
#include "socket/include/socket.h"
#include "driver/include/m2m_periph.h"
#include "driver/source/nmasic.h"
#include "main.h"
#include "string.h"

Macros
#define	DOZE_MODE 3

#define	STRING_EOL "\r\n"

#define	STRING_HEADER

Functions
static void	configure_console (void)
	Configure UART console. More...

static int8_t	connect_to_server (char *ip_addr, int tcp_mode)
	Creates and connects to an secure socket to be used for SSL. More...

static void	disable_pullups (void)
	Disables pull-ups for the pins in WINC which are used for communication with host MCU. More...

static void	execute_state_machine (int server_mode, low_power_test_param *tp)
	State machine to connect and exchange data with a TCP, SSL or a UDP server. More...

static void	handle_tcp_socket_cb (SOCKET sock, uint8_t u8Msg, void *pvMsg)
	Handles Callback event for TCP client socket. More...

static void	handle_udp_client_socket_cb (SOCKET sock, uint8_t u8Msg, void *pvMsg)
	Handles Callback event for UDP client socket. More...

static void	handle_udp_serv_socket_cb (SOCKET sock, uint8_t u8Msg, void *pvMsg)
	Handles Callback event for UDP server socket. More...

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

static void	reset_start_time (void)
	Resets the timer. More...

static void	run_profiling_app (int enable_ssl, low_power_test_param *tp)
	Execute profiling App. More...

static void	run_provisioning (low_power_test_param *tp)
	Switch the WINC to provisioning mode. More...

static void	run_sample_test_app (int enable_ssl, low_power_test_param *tp)
	Execute Sample Test App - connect and transmit on button press. More...

static void	run_udp_client (uint32_t target_ip, uint32_t delay_btwn_packets, uint32_t packet_size)
	Run UDP client on WINC. More...

static void	run_udp_server (void)
	Run UDP server on WINC. More...

static void	set_state (app_states state)
	Set the application status. More...

static void	socket_cb (SOCKET sock, uint8_t u8Msg, void *pvMsg)
	Callback function for all socket events. More...

static void	start_low_power_mode_test (low_power_test_param *tp)
	Function to set the desired low power mode to WINC and execute UDP server in case of Auto deep sleep. More...

static void	start_receive_test (void)
	Execute Reception test by receiving UDP frames in UDP server mode. More...

static void	start_transmission_test (low_power_test_param *tp)
	Execute Transmission test by transmitting UDP frames continously. More...

void	SysTick_Handler (void)
	SysTick handler used to measure precise delay. More...

static void	test_init (void)
	Connect to a pre-configured AP and initialize the server address. More...

static void	wifi_cb (uint8_t u8MsgType, void *pvMsg)
	Callback to get the Wi-Fi status update. More...

static void	winc_init (void)
	Initialize WINC. More...

Variables
struct sockaddr_in	addr

static app_states	app_state = IDLE_STATE

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

bool	curr_button_state = false

static int	dtim = DEFAULT_DTIM_FLAG

static uint8	fake_data [TX_PACKET_SIZE]

static uint32_t	gateway_ip = 0

static uint8_t	gau8SocketTestBuffer [TEST_WINC_RECEIVE_BUFFER] = {0}
	Test buffer. More...

static tstrM2MAPConfig	gstrM2MAPConfig

static int	listen_interval = 0

static int	menu_number = 0

volatile uint32_t	ms_ticks = 0
	SysTick counter to avoid busy wait delay. More...

static uint32_t	packetCnt = 0
	UDP packet count. More...

bool	prev_button_state = false

static int	ps_mode = 0

static uint32	send_cnt = 0

static int	ssl_enable = 0

static uint32_t	start_time = 0

static SOCKET	tcp_client_socket = -1
	Client and Server socket handler. More...

bool	tcp_connected = false

static int	transmit_pwr_mode

static uint32	u32TotalBytesSent = 0

static SOCKET	udp_client_socket = -1

bool	udp_keep_alive_sent = false

static SOCKET	udp_server_socket = -1

bool	upload_completed = false

static uint8_t	wifi_connected

#define DOZE_MODE 3

Referenced by start_low_power_mode_test().

#define STRING_EOL "\r\n"

#define STRING_HEADER

Value:

"-- WINC1500 Power Profiling App --"STRING_EOL \
"-- "BOARD_NAME " --"STRING_EOL \
"-- Compiled: "__DATE__ " "__TIME__ " --"STRING_EOL

Referenced by main().

static void configure_console ( void )

static

Configure UART console.

Parameters

[in] None

Returns: None.

References usart_config::baudrate, cdc_uart_module, EDBG_CDC_MODULE, EDBG_CDC_SERCOM_MUX_SETTING, EDBG_CDC_SERCOM_PINMUX_PAD0, EDBG_CDC_SERCOM_PINMUX_PAD1, EDBG_CDC_SERCOM_PINMUX_PAD2, EDBG_CDC_SERCOM_PINMUX_PAD3, usart_config::mux_setting, usart_config::pinmux_pad0, usart_config::pinmux_pad1, usart_config::pinmux_pad2, usart_config::pinmux_pad3, usart_enable(), and usart_get_config_defaults().

Referenced by main().

static int8_t connect_to_server	(	char *	ip_addr,
		int	tcp_mode
	)

static

Creates and connects to an secure socket to be used for SSL.

Parameters

[in] None.

Returns: SOCK_ERR_NO_ERROR if success, -1 if socket create error, SOCK_ERR_INVALID if socket connect error.

References _htons, AF_INET, close(), connect(), nmi_inet_addr(), in_addr::s_addr, sockaddr_in::sin_addr, sockaddr_in::sin_family, sockaddr_in::sin_port, SOCK_ERR_INVALID, SOCK_ERR_NO_ERROR, SOCK_STREAM, socket(), SOCKET_FLAGS_SSL, tcp_client_socket, TEST_SSL_SERVER_PORT, and TEST_TCP_SERVER_PORT.

Referenced by execute_state_machine(), and run_sample_test_app().

static void disable_pullups ( void )

static

Disables pull-ups for the pins in WINC which are used for communication with host MCU.

Parameters

[in] None

Returns: None.

References m2m_periph_pullup_ctrl(), M2M_PERIPH_PULLUP_DIS_HOST_WAKEUP, M2M_PERIPH_PULLUP_DIS_SD_CMD_SPI_SCK, and M2M_PERIPH_PULLUP_DIS_SD_DAT0_SPI_TXD.

Referenced by winc_init().

static void execute_state_machine	(	int	server_mode,
		low_power_test_param *	tp
	)

static

State machine to connect and exchange data with a TCP, SSL or a UDP server.

Parameters

[in]	server_mode	TCP(0), SSL(1) or UDP(2) server
[in]	tp	Test parameter

Returns: None.

References app_state, connect_to_server(), low_power_test_param::dtim, fake_data, IDLE_STATE, LED0_GPIO, low_power_test_param::listen_interval, m2m_wifi_enable_sntp(), m2m_wifi_set_lsn_int(), m2m_wifi_set_sleep_mode(), nmi_inet_addr(), port_pin_set_output_level(), low_power_test_param::ps_mode, run_udp_client(), send(), set_state(), SOCK_ERR_NO_ERROR, SOCKET_CONNECTION_STATE, tcp_client_socket, test_init(), TEST_SSL_TCP_IP, TX_PACKET_SIZE, tstrM2mLsnInt::u16LsnInt, WIFI_CONNECTION_STATE, and winc_init().

Referenced by run_profiling_app().

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

static

Handles Callback event for TCP client socket.

Parameters

[in]	sock	Socket for which event callback is called
[in]	u8Msg	Event to be handled
[in]	*pvMsg	Data related to the event

Returns: None.

References close(), fake_data, LED0_GPIO, port_pin_set_output_level(), recv(), tstrSocketRecvMsg::s16BufferSize, tstrSocketConnectMsg::s8Error, set_state(), SOCK_ERR_NO_ERROR, SOCKET_CONNECTION_STATE, SOCKET_MSG_CONNECT, SOCKET_MSG_RECV, SOCKET_MSG_SEND, tcp_client_socket, tcp_connected, TEST_SSL_UPLOAD_SIZE, TX_PACKET_SIZE, u32TotalBytesSent, and upload_completed.

Referenced by socket_cb().

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

static

Handles Callback event for UDP client socket.

Parameters

[in]	sock	Socket for which event callback is called
[in]	u8Msg	Event to be handled
[in]	*pvMsg	Data related to the event

Returns: None.

References SOCKET_MSG_SENDTO, and udp_keep_alive_sent.

Referenced by socket_cb().

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

static

Handles Callback event for UDP server socket.

Parameters

[in]	sock	Socket for which event callback is called
[in]	u8Msg	Event to be handled
[in]	*pvMsg	Data related to the event

Returns: None.

References gau8SocketTestBuffer, packetCnt, tstrSocketRecvMsg::pu8Buffer, recvfrom(), tstrSocketRecvMsg::s16BufferSize, SOCK_ERR_TIMEOUT, SOCKET_MSG_BIND, SOCKET_MSG_RECVFROM, tstrSocketBindMsg::status, and TEST_WINC_RECEIVE_BUFFER.

Referenced by socket_cb().

int main ( void )

Main application function.

Initialize system, UART console, WINC and start power profiling application.

Returns: Program return value.

References configure_console(), DEFAULT_DTIM_FLAG, DEFAULT_TX_POWER, low_power_test_param::dtim, dtim, low_power_test_param::listen_interval, listen_interval, M2M_PS_DEEP_AUTOMATIC, M2M_PS_MANUAL, m2m_wifi_deinit(), menu_number, nm_bsp_deinit(), NULL, low_power_test_param::ps_mode, ps_mode, run_profiling_app(), run_provisioning(), run_sample_test_app(), socketDeinit(), ssl_enable, start_low_power_mode_test(), start_receive_test(), start_transmission_test(), STRING_HEADER, system_init(), transmit_pwr_mode, low_power_test_param::tx_pwr_mode, and winc_init().

static void reset_start_time ( void )

static

Resets the timer.

Parameters

[in] None

Returns: None.

References ms_ticks, and start_time.

Referenced by run_sample_test_app().

static void run_profiling_app	(	int	enable_ssl,
		low_power_test_param *	tp
	)

static

Execute profiling App.

Parameters

[in]	enable_ssl	To connect to a secure server
[in]	tp	Test parameter

Returns: None.

References BUTTON_0_PIN, curr_button_state, execute_state_machine(), m2m_wifi_handle_events(), NULL, port_pin_get_input_level(), and prev_button_state.

Referenced by main().

static void run_provisioning ( low_power_test_param * tp )

static

Switch the WINC to provisioning mode.

Parameters

[in] tp test parameter

Returns: None.

References tstrM2MAPConfig::au8SSID, m2m_wifi_handle_events(), m2m_wifi_start_provision_mode(), and NULL.

Referenced by main().

static void run_sample_test_app	(	int	enable_ssl,
		low_power_test_param *	tp
	)

static

Execute Sample Test App - connect and transmit on button press.

Parameters

[in]	enable_ssl	To connect to a secure server
[in]	tp	Test parameter

Returns: None.

References BUTTON_0_PIN, close(), connect_to_server(), curr_button_state, low_power_test_param::dtim, fake_data, gateway_ip, low_power_test_param::listen_interval, M2M_PS_MANUAL, M2M_WIFI_CONNECTED, m2m_wifi_enable_sntp(), m2m_wifi_handle_events(), m2m_wifi_request_sleep(), m2m_wifi_set_lsn_int(), m2m_wifi_set_sleep_mode(), NULL, port_pin_get_input_level(), prev_button_state, low_power_test_param::ps_mode, reset_start_time(), run_udp_client(), send(), send_cnt, SOCK_ERR_NO_ERROR, tcp_client_socket, tcp_connected, test_init(), TEST_SSL_TCP_IP, TEST_SSL_UPLOAD_SIZE, tstrM2mLsnInt::u16LsnInt, udp_keep_alive_sent, upload_completed, and wifi_connected.

Referenced by main().

static void run_udp_client	(	uint32_t	target_ip,
		uint32_t	delay_btwn_packets,
		uint32_t	packet_size
	)

static

Run UDP client on WINC.

Parameters

[in]	target_ip	IP address of the server
[in]	delay_btwn_packets	delay between sending 2 packets
[in]	packet_size	size of each packet

Returns: None.

References addr, AF_INET, gau8SocketTestBuffer, M2M_SUCCESS, M2M_WIFI_CONNECTED, m2m_wifi_handle_events(), ms_ticks, NULL, in_addr::s_addr, sendto(), set_state(), sockaddr_in::sin_addr, SOCK_DGRAM, socket(), SOCKET_CONNECTION_STATE, start_time, udp_client_socket, udp_keep_alive_sent, and wifi_connected.

Referenced by execute_state_machine(), run_sample_test_app(), and start_transmission_test().

static void run_udp_server ( void )

static

Run UDP server on WINC.

Parameters

[in] None

Returns: None.

References addr, AF_INET, bind(), M2M_WIFI_CONNECTED, m2m_wifi_handle_events(), NULL, SOCK_DGRAM, socket(), udp_server_socket, and wifi_connected.

Referenced by start_low_power_mode_test(), and start_receive_test().

static void set_state ( app_states state )

static

Set the application status.

Parameters

[in] state State value to be set

Returns: None.

References app_state.

Referenced by execute_state_machine(), handle_tcp_socket_cb(), run_udp_client(), and wifi_cb().

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

static

Callback function for all socket events.

Parameters

[in]	sock	socket handler.
[in]	u8Msg	Type of Socket notification
[in]	pvMsg	A structure contains notification informations.

Returns: None.

References handle_tcp_socket_cb(), handle_udp_client_socket_cb(), handle_udp_serv_socket_cb(), tcp_client_socket, udp_client_socket, and udp_server_socket.

Referenced by winc_init().

static void start_low_power_mode_test ( low_power_test_param * tp )

static

Function to set the desired low power mode to WINC and execute UDP server in case of Auto deep sleep.

Parameters

[in] tp test parameter

Returns: None.

References DOZE_MODE, low_power_test_param::dtim, low_power_test_param::listen_interval, M2M_PS_MANUAL, M2M_WIFI_CONNECTED, m2m_wifi_enable_sntp(), m2m_wifi_handle_events(), m2m_wifi_request_sleep(), m2m_wifi_set_lsn_int(), m2m_wifi_set_sleep_mode(), NULL, low_power_test_param::ps_mode, run_udp_server(), test_init(), tstrM2mLsnInt::u16LsnInt, and wifi_connected.

Referenced by main().

static void start_receive_test ( void )

static

Execute Reception test by receiving UDP frames in UDP server mode.

Parameters

[in] None

Returns: None.

References m2m_wifi_enable_sntp(), run_udp_server(), and test_init().

Referenced by main().

static void start_transmission_test ( low_power_test_param * tp )

static

Execute Transmission test by transmitting UDP frames continously.

Parameters

[in] tp test parameter

Returns: None.

References gateway_ip, m2m_wifi_enable_sntp(), run_udp_client(), test_init(), TX_DELAY_MS, and TX_PACKET_SIZE.

Referenced by main().

void SysTick_Handler ( void )

SysTick handler used to measure precise delay.

Parameters

[in] None

Returns: None.

References ms_ticks.

static void test_init ( void )

static

Connect to a pre-configured AP and initialize the server address.

Parameters

[in] None

Returns: None.

References _htons, addr, AF_INET, LED0_GPIO, M2M_WIFI_CH_1, m2m_wifi_connect(), nmi_inet_addr(), port_pin_toggle_output_level(), in_addr::s_addr, sockaddr_in::sin_addr, sockaddr_in::sin_family, sockaddr_in::sin_port, TEST_WINC_SERVER_IP, TEST_WINC_SERVER_PORT, TEST_WLAN_AUTH, TEST_WLAN_PSK, and TEST_WLAN_SSID.

Referenced by execute_state_machine(), run_sample_test_app(), start_low_power_mode_test(), start_receive_test(), and start_transmission_test().

static void wifi_cb	(	uint8_t	u8MsgType,
		void *	pvMsg
	)

static

Callback to get the Wi-Fi status update.

Parameters

[in]	u8MsgType	Type of Wi-Fi notification.
[in]	pvMsg	A pointer to a buffer containing the notification parameters.

Returns: None.

AP_CONNECTION_TOGGLE

References close(), gateway_ip, LED0_GPIO, M2M_SUCCESS, M2M_WIFI_CONNECTED, M2M_WIFI_DISCONNECTED, M2M_WIFI_REQ_DHCP_CONF, M2M_WIFI_RESP_CON_STATE_CHANGED, M2M_WIFI_RESP_PROVISION_INFO, port_pin_toggle_output_level(), set_state(), tcp_client_socket, tcp_connected, tstrM2MIPConfig::u32Gateway, tstrM2mWifiStateChanged::u8CurrState, tstrM2mWifiStateChanged::u8ErrCode, tstrM2MProvisionInfo::u8Status, udp_client_socket, udp_server_socket, wifi_connected, and WIFI_CONNECTION_STATE.

Referenced by winc_init().

static void winc_init ( void )

static

Initialize WINC.

Parameters

[in] None

Returns: None.

References disable_pullups(), M2M_SUCCESS, m2m_wifi_init(), nm_bsp_init(), NULL, tstrWifiInitParam::pfAppWifiCb, registerSocketCallback(), socket_cb(), socketInit(), and wifi_cb().

Referenced by execute_state_machine(), and main().

struct sockaddr_in addr

Referenced by run_udp_client(), run_udp_server(), and test_init().

app_states app_state = IDLE_STATE

static

Referenced by execute_state_machine(), and set_state().

struct usart_module cdc_uart_module

static

UART module for debug.

Referenced by configure_console().

bool curr_button_state = false

Referenced by run_profiling_app(), and run_sample_test_app().

int dtim = DEFAULT_DTIM_FLAG

static

Referenced by main().

uint8 fake_data[TX_PACKET_SIZE]

static

Referenced by execute_state_machine(), handle_tcp_socket_cb(), and run_sample_test_app().

uint32_t gateway_ip = 0

static

Referenced by run_sample_test_app(), start_transmission_test(), and wifi_cb().

uint8_t gau8SocketTestBuffer[TEST_WINC_RECEIVE_BUFFER] = {0}

static

Test buffer.

Referenced by handle_udp_serv_socket_cb(), and run_udp_client().

tstrM2MAPConfig gstrM2MAPConfig

static

Initial value:

= {
    "WINC1500_POWERSAVE_AP",
    M2M_WIFI_CH_1,
    0,
    WEP_40_KEY_STRING_SIZE,
    "1234567890",
    M2M_WIFI_SEC_OPEN,
    SSID_MODE_VISIBLE,
    {192, 168, 1, 1}
}