Skip to content
体验新版
项目
组织
正在加载...
登录
切换导航
打开侧边栏
openeuler
Kernel
提交
ae40d5c5
K
Kernel
项目概览
openeuler
/
Kernel
1 年多 前同步成功
通知
8
Star
0
Fork
0
代码
文件
提交
分支
Tags
贡献者
分支图
Diff
Issue
0
列表
看板
标记
里程碑
合并请求
0
DevOps
流水线
流水线任务
计划
Wiki
0
Wiki
分析
仓库
DevOps
项目成员
Pages
K
Kernel
项目概览
项目概览
详情
发布
仓库
仓库
文件
提交
分支
标签
贡献者
分支图
比较
Issue
0
Issue
0
列表
看板
标记
里程碑
合并请求
0
合并请求
0
Pages
DevOps
DevOps
流水线
流水线任务
计划
分析
分析
仓库分析
DevOps
Wiki
0
Wiki
成员
成员
收起侧边栏
关闭侧边栏
动态
分支图
创建新Issue
流水线任务
提交
Issue看板
提交
ae40d5c5
编写于
1月 31, 2018
作者:
V
Vinod Koul
浏览文件
操作
浏览文件
下载
差异文件
Merge branch 'topic/doc' into for-linus
上级
40303764
881053f7
变更
1
隐藏空白更改
内联
并排
Showing
1 changed file
with
17 addition
and
21 deletion
+17
-21
Documentation/driver-api/dmaengine/provider.rst
Documentation/driver-api/dmaengine/provider.rst
+17
-21
未找到文件。
Documentation/driver-api/dmaengine/provider.rst
浏览文件 @
ae40d5c5
...
...
@@ -111,40 +111,36 @@ The first thing you need to do in your driver is to allocate this
structure. Any of the usual memory allocators will do, but you'll also
need to initialize a few fields in there:
-
channels
: should be initialized as a list using the
-
``channels``
: should be initialized as a list using the
INIT_LIST_HEAD macro for example
-
src_addr_widths
:
-
``src_addr_widths``
:
should contain a bitmask of the supported source transfer width
-
dst_addr_widths
:
-
``dst_addr_widths``
:
should contain a bitmask of the supported destination transfer width
-
directions
:
-
``directions``
:
should contain a bitmask of the supported slave directions
(i.e. excluding mem2mem transfers)
- residue_granularity:
- ``residue_granularity``:
granularity of the transfer residue reported to dma_set_residue.
This can be either:
- Granularity of the transfer residue reported to dma_set_residue.
This can be either:
- Descriptor:
your device doesn't support any kind of residue
reporting. The framework will only know that a particular
transaction descriptor is done.
- Descriptor
- Segment:
your device is able to report which chunks have been transferred
- Your device doesn't support any kind of residue
reporting. The framework will only know that a particular
transaction descriptor is done.
- Burst:
your device is able to report which burst have been transferred
- Segment
- Your device is able to report which chunks have been transferred
- Burst
- Your device is able to report which burst have been transferred
- dev: should hold the pointer to the ``struct device`` associated
to your current driver instance.
- ``dev``: should hold the pointer to the ``struct device`` associated
to your current driver instance.
Supported transaction types
---------------------------
...
...
编辑
预览
Markdown
is supported
0%
请重试
或
添加新附件
.
添加附件
取消
You are about to add
0
people
to the discussion. Proceed with caution.
先完成此消息的编辑!
取消
想要评论请
注册
或
登录