rt_dma_controller_ops结构体 参考

#include <dma.h>

成员变量
struct rt_dma_chan *(*	request_chan )(struct rt_dma_controller *ctrl, struct rt_device *slave, void *fw_data)
rt_err_t(*	release_chan )(struct rt_dma_chan *chan)
rt_err_t(*	start )(struct rt_dma_chan *chan)
rt_err_t(*	stop )(struct rt_dma_chan *chan)
rt_err_t(*	config )(struct rt_dma_chan *chan, struct rt_dma_slave_config *conf)
rt_err_t(*	prep_memcpy )(struct rt_dma_chan *chan, rt_ubase_t dma_addr_src, rt_ubase_t dma_addr_dst, rt_size_t len)
rt_err_t(*	prep_cyclic )(struct rt_dma_chan *chan, rt_ubase_t dma_buf_addr, rt_size_t buf_len, rt_size_t period_len, enum rt_dma_transfer_direction dir)
rt_err_t(*	prep_single )(struct rt_dma_chan *chan, rt_ubase_t dma_buf_addr, rt_size_t buf_len, enum rt_dma_transfer_direction dir)

详细描述

在文件 dma.h 第 91 行定义.

结构体成员变量说明

request_chan

struct rt_dma_chan *(* rt_dma_controller_ops::request_chan) (struct rt_dma_controller *ctrl, struct rt_device *slave, void *fw_data)

在文件 dma.h 第 88 行定义.

release_chan

rt_err_t(* rt_dma_controller_ops::release_chan) (struct rt_dma_chan *chan)

在文件 dma.h 第 95 行定义.

start

rt_err_t(* rt_dma_controller_ops::start) (struct rt_dma_chan *chan)

在文件 dma.h 第 97 行定义.

stop

rt_err_t(* rt_dma_controller_ops::stop) (struct rt_dma_chan *chan)

在文件 dma.h 第 98 行定义.

config

rt_err_t(* rt_dma_controller_ops::config) (struct rt_dma_chan *chan, struct rt_dma_slave_config *conf)

在文件 dma.h 第 99 行定义.

prep_memcpy

rt_err_t(* rt_dma_controller_ops::prep_memcpy) (struct rt_dma_chan *chan, rt_ubase_t dma_addr_src, rt_ubase_t dma_addr_dst, rt_size_t len)

在文件 dma.h 第 101 行定义.

prep_cyclic

rt_err_t(* rt_dma_controller_ops::prep_cyclic) (struct rt_dma_chan *chan, rt_ubase_t dma_buf_addr, rt_size_t buf_len, rt_size_t period_len, enum rt_dma_transfer_direction dir)

在文件 dma.h 第 104 行定义.

prep_single

rt_err_t(* rt_dma_controller_ops::prep_single) (struct rt_dma_chan *chan, rt_ubase_t dma_buf_addr, rt_size_t buf_len, enum rt_dma_transfer_direction dir)

在文件 dma.h 第 108 行定义.