Packet2 library

Topics
	Chain
	Types
	Utils
	VIF

Functions
packet2_t *	packet2_create (u16 qwords, enum Packet2Type type, enum Packet2Mode mode, u8 tte)
packet2_t *	packet2_create_from (qword_t *base, qword_t *next, u16 qwords, enum Packet2Type type, enum Packet2Mode mode, u8 tte)
void	packet2_free (packet2_t *packet2)
void	packet2_reset (packet2_t *packet2, u8 clear_mem)
void	packet2_print (packet2_t *packet2, u32 qw_count)
void	packet2_print_qw_count (packet2_t *packet2)
void	packet2_add (packet2_t *a, packet2_t *b)

Detailed Description

Successor of packet_t. Main goal of this library is to create simple API for packet management. Library is splitted into several parts:

• This - core functionality of libpacket2
  
• "_types" - Enums and structures used in libpacket2
  
• "_chain" - DMA tags
• "_vif" - VU related
• "_utils" - useful functions, and examples

Function Documentation

packet2_add()

void packet2_add ( packet2_t * a, packet2_t * b )

extern

Copy data from b packet into a packet with memcpy()

Definition at line 101 of file packet2.c.

packet2_create()

packet2_t * packet2_create ( u16 qwords, enum Packet2Type type, enum Packet2Mode mode, u8 tte )

extern

Allocate new packet2.

Parameters

qwords	Maximum data size in qwords (128bit).
type	Memory mapping type.
mode	Packet mode. Normal or chain.
tte	Tag transfer enable. Used only for CHAIN mode! If >0 transfer tag is set during packet sending and add_dma_tag() (so also every open_tag()) will move buffer by DWORD, so remember to align memory!

Returns

Pointer to packet2 on success or NULL if memory allocation fail.

Definition at line 25 of file packet2.c.

packet2_create_from()

packet2_t * packet2_create_from ( qword_t * base, qword_t * next, u16 qwords, enum Packet2Type type, enum Packet2Mode mode, u8 tte )

extern

Create new packet2 with given data pointer.

Parameters

base	Pointer to base (start of buffer).
next	Pointer to next (current position of buffer).
qwords	Maximum data size in qwords (128bit).
type	Memory mapping type.
mode	Packet mode. Normal or chain (so also vif/vu).
tte	Tag transfer enable. Used only for CHAIN mode! If >0 transfer tag is set during packet sending and add_dma_tag() (so also every open_tag()) will move buffer by DWORD, so remember to align memory!

Returns

Pointer to packet2 on success or NULL if memory allocation fail.

Definition at line 60 of file packet2.c.

packet2_free()

void packet2_free ( packet2_t * packet2 )

extern

Free packet2 memory.

Parameters

packet2

Pointer to packet2.

Definition at line 81 of file packet2.c.

packet2_print()

void packet2_print ( packet2_t * packet2, u32 qw_count )

extern

Print data of packet.

Parameters

packet2	Pointer to packet.
clear_mem	Count of qwords, type 0 for all.

Definition at line 108 of file packet2.c.

packet2_print_qw_count()

void packet2_print_qw_count ( packet2_t * packet2 )

extern

Print amount of qwords of packet.

Parameters

packet2

Pointer to packet.

Definition at line 127 of file packet2.c.

packet2_reset()

void packet2_reset ( packet2_t * packet2, u8 clear_mem )

extern

Reset packet. Move next pointer back to base pointer, Make all "openedAt" vars to NULL Do memset on data if required.

Parameters

packet2	Pointer to packet.
clear_mem	If >0, data is cleared via memset(). SLOW!

Definition at line 88 of file packet2.c.