#include <tamtypes.h>
#include <packet2_types.h>

Include dependency graph for dma.h:

This graph shows which files directly or indirectly include 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.

Function Documentation

◆ dma_channel_initialize()

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

Initializes the specified dma channel.

Definition at line 58 of file dma.c.

References dma_channel_shutdown().

◆ dma_channel_fast_waits()

void dma_channel_fast_waits ( int channel )

Enables dma fast waits for that channel

Definition at line 108 of file dma.c.

References DMA_REG_PCR.

◆ dma_wait_fast()

void dma_wait_fast ( void )

Waits until channel is usable based on coprocessor status

Definition at line 115 of file dma.c.

◆ dma_channel_wait()

int dma_channel_wait	(	int	channel,
		int	timeout
	)

Wait until the specified dma channel is ready.

Definition at line 131 of file dma.c.

◆ dma_channel_send_packet2()

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

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

Parameters

packet2	Pointer to packet.
channel	DMA channel.
flush_cache	Should be cache flushed before send?

Definition at line 159 of file dma.c.

References packet2_t::mode.

◆ dma_channel_send_chain()

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

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
	)

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
	)

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
	)

Send ucab data to the specified dma channel.

Definition at line 270 of file dma.c.

◆ dma_channel_receive_normal()

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

Receive data from the specified dma channel.

Definition at line 328 of file dma.c.

◆ dma_channel_receive_chain()

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

Receive data from the specified dma channel.

Definition at line 299 of file dma.c.

◆ dma_channel_shutdown()

int dma_channel_shutdown	(	int	channel,
		int	flags
	)

Shut down the specified dma channel.

Definition at line 357 of file dma.c.

Referenced by dma_channel_initialize().

Macros

Functions