no_os_dma_ch Struct Reference

Describes the state of a DMA channel. More...

#include <no_os_dma.h>

Collaboration diagram for no_os_dma_ch:

Public Attributes
uint32_t	id
bool	free
struct no_os_list_desc *	sg_list
uint32_t	irq_num
struct no_os_callback_desc	cb_desc
struct no_os_dma_default_handler_data	irq_ctx
void *	extra
void *	mutex
bool	sync_lock

Detailed Description

Describes the state of a DMA channel.

Member Data Documentation

cb_desc

struct no_os_callback_desc no_os_dma_ch::cb_desc

irq callback

extra

void* no_os_dma_ch::extra

free

bool no_os_dma_ch::free

Whether or not there is a transfer in progress on this channel

id

uint32_t no_os_dma_ch::id

Channel number

irq_ctx

struct no_os_dma_default_handler_data no_os_dma_ch::irq_ctx

IRQ parameter for the default inter transfer handler

irq_num

uint32_t no_os_dma_ch::irq_num

Channel specific interrupt line number

mutex

void* no_os_dma_ch::mutex

Used to synchronize channel specific operations

sg_list

struct no_os_list_desc* no_os_dma_ch::sg_list

List of transfers for this channel

sync_lock

bool no_os_dma_ch::sync_lock

Mark the channel as locked, in order to prevent it from being acquired even if it's free. Used as a synchronization mechanism between channels.

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

• include/no_os_dma.h