sdk-core v2026.11.05
PS2 SDK - core tier (build-critical EE/IOP modules)
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dma.h File Reference
core/dma
#include <tamtypes.h>
#include <packet2_types.h>

Go to the source code of this file.

Macros

#define DMA_CHANNEL_VIF0   0x00
#define DMA_CHANNEL_VIF1   0x01
#define DMA_CHANNEL_GIF   0x02
#define DMA_CHANNEL_fromIPU   0x03
#define DMA_CHANNEL_toIPU   0x04
#define DMA_CHANNEL_fromSIF0   0x05
#define DMA_CHANNEL_toSIF1   0x06
#define DMA_CHANNEL_SIF2   0x07
#define DMA_CHANNEL_fromSPR   0x08
#define DMA_CHANNEL_toSPR   0x09
#define DMA_FLAG_TRANSFERTAG   0x01
#define DMA_FLAG_INTERRUPTSAFE   0x02

Functions

int dma_reset (void)
int dma_channel_initialize (int channel, void *handler, int flags)
void dma_channel_fast_waits (int channel)
void dma_wait_fast (void)
int dma_channel_wait (int channel, int timeout)
void dma_channel_send_packet2 (packet2_t *packet2, int channel, u8 flush_cache)
int dma_channel_send_chain (int channel, void *data, int qwc, int flags, int spr)
int dma_channel_send_chain_ucab (int channel, void *data, int qwc, int flags)
int dma_channel_send_normal (int channel, void *data, int qwc, int flags, int spr)
int dma_channel_send_normal_ucab (int channel, void *data, int qwc, int flags)
int dma_channel_receive_normal (int channel, void *data, int data_size, int flags, int spr)
int dma_channel_receive_chain (int channel, void *data, int data_size, int flags, int spr)
int dma_channel_shutdown (int channel, int flags)

Detailed Description

DMA channel utilities

Definition in file dma.h.

Macro Definition Documentation

◆ DMA_CHANNEL_fromIPU

#define DMA_CHANNEL_fromIPU   0x03

Definition at line 26 of file dma.h.

◆ DMA_CHANNEL_fromSIF0

#define DMA_CHANNEL_fromSIF0   0x05

Definition at line 28 of file dma.h.

◆ DMA_CHANNEL_fromSPR

#define DMA_CHANNEL_fromSPR   0x08

Definition at line 31 of file dma.h.

◆ DMA_CHANNEL_GIF

#define DMA_CHANNEL_GIF   0x02

Definition at line 25 of file dma.h.

◆ DMA_CHANNEL_SIF2

#define DMA_CHANNEL_SIF2   0x07

Definition at line 30 of file dma.h.

◆ DMA_CHANNEL_toIPU

#define DMA_CHANNEL_toIPU   0x04

Definition at line 27 of file dma.h.

◆ DMA_CHANNEL_toSIF1

#define DMA_CHANNEL_toSIF1   0x06

Definition at line 29 of file dma.h.

◆ DMA_CHANNEL_toSPR

#define DMA_CHANNEL_toSPR   0x09

Definition at line 32 of file dma.h.

◆ DMA_CHANNEL_VIF0

#define DMA_CHANNEL_VIF0   0x00

Definition at line 23 of file dma.h.

◆ DMA_CHANNEL_VIF1

#define DMA_CHANNEL_VIF1   0x01

Definition at line 24 of file dma.h.

◆ DMA_FLAG_INTERRUPTSAFE

#define DMA_FLAG_INTERRUPTSAFE   0x02

Definition at line 35 of file dma.h.

◆ DMA_FLAG_TRANSFERTAG

#define DMA_FLAG_TRANSFERTAG   0x01

Definition at line 34 of file dma.h.

Function Documentation

◆ dma_channel_fast_waits()

void dma_channel_fast_waits ( int channel)
extern

Enables dma fast waits for that channel

Definition at line 108 of file dma.c.

◆ dma_channel_initialize()

int dma_channel_initialize ( int channel,
void * handler,
int flags )
extern

Initializes the specified dma channel.

Definition at line 58 of file dma.c.

◆ dma_channel_receive_chain()

int dma_channel_receive_chain ( int channel,
void * data,
int data_size,
int flags,
int spr )
extern

Receive data from the specified dma channel.

Definition at line 299 of file dma.c.

◆ dma_channel_receive_normal()

int dma_channel_receive_normal ( int channel,
void * data,
int data_size,
int flags,
int spr )
extern

Receive data from the specified dma channel.

Definition at line 328 of file dma.c.

◆ dma_channel_send_chain()

int dma_channel_send_chain ( int channel,
void * data,
int qwc,
int flags,
int spr )
extern

Send a dmachain to the specified dma channel.

Definition at line 186 of file dma.c.

◆ dma_channel_send_chain_ucab()

int dma_channel_send_chain_ucab ( int channel,
void * data,
int qwc,
int flags )
extern

Send a ucab dmachain to the specified dma channel.

Definition at line 217 of file dma.c.

◆ dma_channel_send_normal()

int dma_channel_send_normal ( int channel,
void * data,
int qwc,
int flags,
int spr )
extern

Send data to the specified dma channel.

Definition at line 241 of file dma.c.

◆ dma_channel_send_normal_ucab()

int dma_channel_send_normal_ucab ( int channel,
void * data,
int qwc,
int flags )
extern

Send ucab data to the specified dma channel.

Definition at line 270 of file dma.c.

◆ dma_channel_send_packet2()

void dma_channel_send_packet2 ( packet2_t * packet2,
int channel,
u8 flush_cache )
extern

Send packet2. Type chain/normal is choosen from packet2_t.

Parameters
packet2Pointer to packet.
channelDMA channel.
flush_cacheShould be cache flushed before send?

Definition at line 159 of file dma.c.

◆ dma_channel_shutdown()

int dma_channel_shutdown ( int channel,
int flags )
extern

Shut down the specified dma channel.

Definition at line 357 of file dma.c.

◆ dma_channel_wait()

int dma_channel_wait ( int channel,
int timeout )
extern

Wait until the specified dma channel is ready.

Definition at line 131 of file dma.c.

◆ dma_reset()

int dma_reset ( void )
extern

Definition at line 40 of file dma.c.

◆ dma_wait_fast()

void dma_wait_fast ( void )
extern

Waits until channel is usable based on coprocessor status

Definition at line 115 of file dma.c.