no_os_dma_platform_ops Struct Reference

#include <no_os_dma.h>

Public Attributes
int(*	dma_init )(struct no_os_dma_desc **, struct no_os_dma_init_param *)
int(*	dma_remove )(struct no_os_dma_desc *desc)
int(*	dma_acquire_ch )(struct no_os_dma_desc *, uint32_t *)
int(*	dma_release_ch )(struct no_os_dma_desc *, uint32_t)
int(*	dma_config_xfer )(struct no_os_dma_ch *, struct no_os_dma_xfer_desc *)
int(*	dma_xfer_start )(struct no_os_dma_desc *, struct no_os_dma_ch *)
int(*	dma_xfer_abort )(struct no_os_dma_desc *, struct no_os_dma_ch *)
bool(*	dma_ch_is_completed )(struct no_os_dma_desc *, struct no_os_dma_ch *)
bool(*	dma_ch_in_progress )(struct no_os_dma_desc *, struct no_os_dma_ch *)

Member Data Documentation

dma_acquire_ch

int(* no_os_dma_platform_ops::dma_acquire_ch) (struct no_os_dma_desc *, uint32_t *)

Get a free channel and set it as busy.

dma_ch_in_progress

bool(* no_os_dma_platform_ops::dma_ch_in_progress) (struct no_os_dma_desc *, struct no_os_dma_ch *)

Whether or not a specific channel has an ongoing transfer. This returns true between transfers.

dma_ch_is_completed

bool(* no_os_dma_platform_ops::dma_ch_is_completed) (struct no_os_dma_desc *, struct no_os_dma_ch *)

Whether or not a specific channel has an ongoing or future transfer configured

dma_config_xfer

int(* no_os_dma_platform_ops::dma_config_xfer) (struct no_os_dma_ch *, struct no_os_dma_xfer_desc *)

Configure platform specific settings required for the current DMA transfer

dma_init

int(* no_os_dma_platform_ops::dma_init) (struct no_os_dma_desc **, struct no_os_dma_init_param *)

Initialize platform specific resources for the DMA controller.

dma_release_ch

int(* no_os_dma_platform_ops::dma_release_ch) (struct no_os_dma_desc *, uint32_t)

dma_remove

int(* no_os_dma_platform_ops::dma_remove) (struct no_os_dma_desc *desc)

Remove resources allocated for the DMA controller.

dma_xfer_abort

int(* no_os_dma_platform_ops::dma_xfer_abort) (struct no_os_dma_desc *, struct no_os_dma_ch *)

Signal the DMA controller to stop the transfer.

dma_xfer_start

int(* no_os_dma_platform_ops::dma_xfer_start) (struct no_os_dma_desc *, struct no_os_dma_ch *)

Signal the DMA controller to start the transfer.

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

• include/no_os_dma.h