_DMA_HOST Struct Reference

#include <dma.h>

Data Fields
DEVICE	device
	The Device entry for this DMA host.
uint32_t	dmaid
	Unique Id of this DMA host in the DMA host table.
uint32_t	dmastate
	DMA state (eg DMA_STATE_ENABLED).
dma_host_start_proc	hoststart
	A Host specific HostStart method implementing the standard DMA host interface (Mandatory).
dma_host_stop_proc	hoststop
	A Host specific HostStop method implementing the standard DMA host interface (Mandatory).
dma_host_reset_proc	hostreset
	A Host specific HostReset method implementing the standard DMA host interface (Or nil if the default method is suitable).
dma_host_submit_proc	hostsubmit
	A Host specific HostSubmit method implementing the standard DMA host interface (Mandatory).
dma_host_cancel_proc	hostcancel
	A Host specific HostCancel method implementing the standard DMA host interface (Mandatory).
dma_host_properties_proc	hostproperties
	A Host specific HostProperties method implementing the standard DMA host interface (Or nil if the default method is suitable).
MUTEX_HANDLE	lock
	Host lock.
uint32_t	alignment
	Host data buffer alignment.
uint32_t	multiplier
	Host data buffer multiplier.
DMA_PROPERTIES	properties
	Host properties.
uint32_t	lasterror
	Last error to occur on this host.
uint32_t	pendingcount
	Number of DMA requests pending for this host.
THREAD_ID	waiterthread
	Thread waiting for pending requests to complete.
uint32_t	requestcount
	Number of DMA requests that have been submitted to this host.
uint32_t	requesterrors
	Number of DMA requests that have failed on this host.
DMA_HOST *	prev
	Previous entry in DMA host table.
DMA_HOST *	next
	Next entry in DMA host table.

Field Documentation

device

DEVICE device

The Device entry for this DMA host.

dmaid

uint32_t dmaid

Unique Id of this DMA host in the DMA host table.

dmastate

uint32_t dmastate

DMA state (eg DMA_STATE_ENABLED).

hoststart

dma_host_start_proc hoststart

A Host specific HostStart method implementing the standard DMA host interface (Mandatory).

hoststop

dma_host_stop_proc hoststop

A Host specific HostStop method implementing the standard DMA host interface (Mandatory).

hostreset

dma_host_reset_proc hostreset

A Host specific HostReset method implementing the standard DMA host interface (Or nil if the default method is suitable).

hostsubmit

dma_host_submit_proc hostsubmit

A Host specific HostSubmit method implementing the standard DMA host interface (Mandatory).

hostcancel

dma_host_cancel_proc hostcancel

A Host specific HostCancel method implementing the standard DMA host interface (Mandatory).

hostproperties

dma_host_properties_proc hostproperties

A Host specific HostProperties method implementing the standard DMA host interface (Or nil if the default method is suitable).

lock

MUTEX_HANDLE lock

Host lock.

alignment

uint32_t alignment

Host data buffer alignment.

multiplier

uint32_t multiplier

Host data buffer multiplier.

properties

DMA_PROPERTIES properties

Host properties.

lasterror

uint32_t lasterror

Last error to occur on this host.

pendingcount

uint32_t pendingcount

Number of DMA requests pending for this host.

waiterthread

THREAD_ID waiterthread

Thread waiting for pending requests to complete.

requestcount

uint32_t requestcount

Number of DMA requests that have been submitted to this host.

requesterrors

uint32_t requesterrors

Number of DMA requests that have failed on this host.

prev

DMA_HOST* prev

Previous entry in DMA host table.

next

DMA_HOST* next

Next entry in DMA host table.

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The documentation for this struct was generated from the following file:

• ultibo/dma.h