udp.h File Reference

arch independent UDP API More...

#include "std.h"
#include "mcu_periph/udp_arch.h"
#include "pprzlink/pprzlink_device.h"

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Data Structures
struct	udp_periph

Macros
#define	UDP_RX_BUFFER_SIZE   256
#define	UDP_TX_BUFFER_SIZE   256

Functions
void	udp_periph_init (struct udp_periph *p, char *host, int port_out, int port_in, bool broadcast)
	Initialize the UDP peripheral.
int	udp_check_free_space (struct udp_periph *p, long *fd, uint16_t len)
	Check if there is enough free space in the transmit buffer.
void	udp_put_byte (struct udp_periph *p, long fd, uint8_t data)
	Add one data byte to the tx buffer.
int	udp_char_available (struct udp_periph *p)
	Get number of bytes available in receive buffer.
uint8_t	udp_getch (struct udp_periph *p)
	Get the last character from the receive buffer.
void	udp_arch_periph_init (struct udp_periph *p, char *host, int port_out, int port_in, bool broadcast)
	Initialize the UDP peripheral.
void	udp_send_message (struct udp_periph *p, long fd)
	Send a message.
void	udp_send_raw (struct udp_periph *p, long fd, uint8_t *buffer, uint16_t size)
	Send a packet from another buffer.
void	udp_receive (struct udp_periph *p)
	Read bytes from UDP.
void	udp_put_buffer (struct udp_periph *p, long fd, const uint8_t *data, uint16_t len)

Detailed Description

arch independent UDP API

Definition in file udp.h.

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Data Structure Documentation

udp_periph

struct udp_periph

Definition at line 38 of file udp.h.

Collaboration diagram for udp_periph:

Data Fields
struct link_device	device	Generic device interface.
void *	network	UDP network.
uint8_t	rx_buf[UDP_RX_BUFFER_SIZE]	Receive buffer.
uint16_t	rx_extract_idx
uint16_t	rx_insert_idx
uint8_t	tx_buf[UDP_TX_BUFFER_SIZE]	Transmit buffer.
uint16_t	tx_insert_idx

Macro Definition Documentation

UDP_RX_BUFFER_SIZE

#define UDP_RX_BUFFER_SIZE   256

Definition at line 35 of file udp.h.

UDP_TX_BUFFER_SIZE

#define UDP_TX_BUFFER_SIZE   256

Definition at line 36 of file udp.h.

Function Documentation

udp_arch_periph_init()

void udp_arch_periph_init ( struct udp_periph *  p, char *  host, int  port_out, int  port_in, bool  broadcast  )

extern

Initialize the UDP peripheral.

Allocate UdpSocket struct and create and bind the UDP socket.

Definition at line 71 of file udp_arch.c.

References foo, p, and udp_socket_create().

Referenced by udp_periph_init().

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udp_char_available()

int udp_char_available ( struct udp_periph *  p )

extern

Get number of bytes available in receive buffer.

Parameters

p	pointer to UDP peripheral

Returns

number of bytes available in receive buffer

Definition at line 83 of file udp_arch.c.

References foo, p, udp_mutex, and UDP_RX_BUFFER_SIZE.

Referenced by udp_periph_init(), and udp_receive().

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udp_check_free_space()

int udp_check_free_space ( struct udp_periph *  p, long *  fd, uint16_t  len  )

extern

Check if there is enough free space in the transmit buffer.

Parameters

p	pointer to UDP peripheral
len	how many bytes of free space to check for

Returns

number of bytes available or 0 if not enough

Definition at line 83 of file udp.c.

References p, and UDP_TX_BUFFER_SIZE.

Referenced by udp_periph_init().

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udp_getch()

uint8_t udp_getch ( struct udp_periph *  p )

extern

Get the last character from the receive buffer.

Parameters

p	pointer to UDP peripheral

Returns

last byte

Definition at line 99 of file udp_arch.c.

References foo, p, udp_mutex, and UDP_RX_BUFFER_SIZE.

Referenced by udp_periph_init().

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udp_periph_init()

void udp_periph_init ( struct udp_periph *  p, char *  host, int  port_out, int  port_in, bool  broadcast  )

extern

Initialize the UDP peripheral.

Definition at line 60 of file udp.c.

References foo, p, udp_periph::rx_insert_idx, udp_arch_periph_init(), udp_char_available(), udp_check_free_space(), udp_getch(), udp_put_buffer(), udp_put_byte(), and udp_send_message().

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udp_put_buffer()

void udp_put_buffer ( struct udp_periph *  p, long  fd, const uint8_t *  data, uint16_t  len  )

extern

Definition at line 104 of file udp.c.

References foo, p, and UDP_TX_BUFFER_SIZE.

Referenced by udp_periph_init().

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udp_put_byte()

void udp_put_byte ( struct udp_periph *  p, long  fd, uint8_t  data  )

extern

Add one data byte to the tx buffer.

Parameters

p	pointer to UDP peripheral
data	byte to add to tx buffer

Definition at line 94 of file udp.c.

References p, and UDP_TX_BUFFER_SIZE.

Referenced by udp_periph_init().

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udp_receive()

void udp_receive ( struct udp_periph *  p )

extern

Read bytes from UDP.

Definition at line 111 of file udp_arch.c.

References foo, p, udp_char_available(), udp_mutex, and UDP_RX_BUFFER_SIZE.

Referenced by udp_thread().

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udp_send_message()

void udp_send_message ( struct udp_periph *  p, long  fd  )

extern

Send a message.

Definition at line 144 of file udp_arch.c.

References foo, and p.

Referenced by udp_periph_init().

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udp_send_raw()

void udp_send_raw ( struct udp_periph *  p, long  fd, uint8_t *  buffer, uint16_t  size  )

extern

Send a packet from another buffer.

Definition at line 169 of file udp_arch.c.

References foo, and p.