mirror of
https://gitee.com/Vancouver2017/luban-lite-t3e-pro.git
synced 2025-12-14 18:38:55 +00:00
427 lines
53 KiB
HTML
427 lines
53 KiB
HTML
<!DOCTYPE html><html xmlns="http://www.w3.org/1999/xhtml" xml:lang="zh-cn" lang="zh-cn" data-whc_version="26.0">
|
||
<head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/><meta name="viewport" content="width=device-width, initial-scale=1.0"/><meta http-equiv="X-UA-Compatible" content="IE=edge"/><meta name="description" content="源码说明 源代码位于 bsp/artinchip/ ： bsp/artinchip/drv/sdmc/drv_sdmc.c ，SDMC Driver 层实现 bsp/artinchip/hal/sdmc/hal_sdmc.c ，SDMC HAL 层实现 bsp/artinchip/include/hal/hal_sdmc.h ，SDMC HAL 层接口头文件 此外，提供了一个 Baremetal ..."/><meta name="DC.rights.owner" content="(C) 版权 2025"/><meta name="copyright" content="(C) 版权 2025"/><meta name="generator" content="DITA-OT"/><meta name="DC.type" content="topic"/><meta name="DC.relation" content="../../../topics/sdk/sdmc/sdmc-user-guide_2.html"/><meta name="DC.relation" content="../../../topics/sdk/sdmc/sdmc-test-guide-lite.html"/><meta name="DC.relation" content="../../../topics/sdk/sdmc/sdmc-faq_2.html"/><meta name="DC.contributor" content="yan.wang"/><meta name="DC.contributor" content="yan.wang"/><meta name="DC.date.modified" content="2024-01-15"/><meta name="DC.format" content="HTML5"/><meta name="DC.identifier" content="id"/><meta name="DC.language" content="zh-CN"/><title>设计说明</title><!-- Build number 2023110923. --><meta name="wh-path2root" content="../../../"/><meta name="wh-toc-id" content="id-d5856e3423"/><meta name="wh-source-relpath" content="topics/sdk/sdmc/sdmc-design-guide-lite.dita"/><meta name="wh-out-relpath" content="topics/sdk/sdmc/sdmc-design-guide-lite.html"/>
|
||
|
||
<link rel="stylesheet" type="text/css" href="../../../webhelp/app/commons.css?buildId=2023110923"/>
|
||
<link rel="stylesheet" type="text/css" href="../../../webhelp/app/topic.css?buildId=2023110923"/>
|
||
|
||
<script src="../../../webhelp/app/options/properties.js?buildId=20250121171154"></script>
|
||
<script src="../../../webhelp/app/localization/strings.js?buildId=2023110923"></script>
|
||
<script src="../../../webhelp/app/search/index/keywords.js?buildId=20250121171154"></script>
|
||
<script defer="defer" src="../../../webhelp/app/commons.js?buildId=2023110923"></script>
|
||
<script defer="defer" src="../../../webhelp/app/topic.js?buildId=2023110923"></script>
|
||
<link rel="stylesheet" type="text/css" href="../../../webhelp/template/aic-styles-web.css?buildId=2023110923"/><link rel="stylesheet" type="text/css" href="../../../webhelp/template/notes.css?buildId=2023110923"/><link rel="stylesheet" type="text/css" href="../../../webhelp/template/aic-common.css?buildId=2023110923"/><link rel="stylesheet" type="text/css" href="../../../webhelp/template/aic-images.css?buildId=2023110923"/><link rel="stylesheet" type="text/css" href="../../../webhelp/template/footnote.css?buildId=2023110923"/><link rel="stylesheet" type="text/css" href="../../../webhelp/template/aic-web-watermark.css?buildId=2023110923"/><link rel="stylesheet" type="text/css" href="../../../webhelp/template/topic-body-list.css?buildId=2023110923"/></head>
|
||
|
||
<body id="id" class="wh_topic_page frmBody">
|
||
<a href="#wh_topic_body" class="sr-only sr-only-focusable">
|
||
跳转到主要内容
|
||
</a>
|
||
|
||
|
||
|
||
|
||
<header class="navbar navbar-default wh_header">
|
||
<div class="container-fluid">
|
||
<div class="wh_header_flex_container navbar-nav navbar-expand-md navbar-dark">
|
||
<div class="wh_logo_and_publication_title_container">
|
||
<div class="wh_logo_and_publication_title">
|
||
|
||
<a href="http://www.artinchip.com" class=" wh_logo d-none d-sm-block "><img src="../../../company-logo-white.png" alt="RTOS SDK 使用指南SDK 指南文件"/></a>
|
||
<div class=" wh_publication_title "><a href="../../../index.html"><span class="booktitle"><span class="ph mainbooktitle">RTOS SDK 使用指南</span><span class="ph booktitlealt">SDK 指南文件</span></span></a></div>
|
||
|
||
</div>
|
||
|
||
|
||
</div>
|
||
|
||
<div class="wh_top_menu_and_indexterms_link collapse navbar-collapse" id="wh_top_menu_and_indexterms_link">
|
||
|
||
|
||
|
||
|
||
</div>
|
||
</div>
|
||
</div>
|
||
</header>
|
||
|
||
|
||
|
||
|
||
<div class=" wh_search_input navbar-form wh_topic_page_search search " role="form">
|
||
|
||
|
||
|
||
<form id="searchForm" method="get" role="search" action="../../../search.html"><div><input type="search" placeholder="搜索 " class="wh_search_textfield" id="textToSearch" name="searchQuery" aria-label="搜索查询" required="required"/><button type="submit" class="wh_search_button" aria-label="搜索"><span class="search_input_text">搜索</span></button></div></form>
|
||
|
||
|
||
|
||
</div>
|
||
|
||
<div class="container-fluid" id="wh_topic_container">
|
||
<div class="row">
|
||
|
||
<nav class="wh_tools d-print-none navbar-expand-md" aria-label="Tools">
|
||
|
||
<div data-tooltip-position="bottom" class=" wh_breadcrumb "><ol class="d-print-none"><li><span class="home"><a href="../../../index.html"><span>主页</span></a></span></li><li><div class="topicref" data-id="id"><div class="title"><a href="../../../topics/sdk/chapter-advanced-app.html">高级应用</a><div class="wh-tooltip"><p class="shortdesc">系统、存储、多媒体、接口、安全等模块的详细配置和设计说明。</p></div></div></div></li><li><div class="topicref" data-id="chapter-memory"><div class="title"><a href="../../../topics/chapter-title/chapter-memory-sdk.html">存储</a><div class="wh-tooltip"><p class="shortdesc">SDMC、SPI NAND、SPI NOR<span class="ph"> 以及文件系统</span> 等存储模块的介绍和使用说明。</p></div></div></div></li><li><div class="topicref" data-id="id"><div class="title"><a href="../../../topics/sdk/sdmc/sdmc-user-guide_2.html">SDMC 使用指南</a></div></div></li><li class="active"><div class="topicref" data-id="id"><div class="title"><a href="../../../topics/sdk/sdmc/sdmc-design-guide-lite.html">设计说明</a></div></div></li></ol></div>
|
||
|
||
|
||
|
||
<div class="wh_right_tools">
|
||
<button class="wh_hide_highlight" aria-label="切换搜索突出显示" title="切换搜索突出显示"></button>
|
||
<button class="webhelp_expand_collapse_sections" data-next-state="collapsed" aria-label="折叠截面" title="折叠截面"></button>
|
||
<div class=" wh_navigation_links "><span id="topic_navigation_links" class="navheader">
|
||
|
||
<span class="navprev"><a class="- topic/link link" href="../../../topics/sdk/sdmc/sdmc-test-guide-lite.html" title="测试指南" aria-label="上一主题: 测试指南" rel="prev"></a></span>
|
||
<span class="navnext"><a class="- topic/link link" href="../../../topics/sdk/sdmc/sdmc-faq_2.html" title="常见问题" aria-label="下一主题: 常见问题" rel="next"></a></span> </span></div>
|
||
|
||
|
||
|
||
<div class=" wh_print_link print d-none d-md-inline-block "><button onClick="window.print()" title="打印此页" aria-label="打印此页"></button></div>
|
||
|
||
<button type="button" id="wh_toc_button" class="custom-toggler navbar-toggler collapsed wh_toggle_button navbar-light" aria-expanded="false" aria-label="Toggle publishing table of content" aria-controls="wh_publication_toc">
|
||
<span class="navbar-toggler-icon"></span>
|
||
</button>
|
||
</div>
|
||
|
||
</nav>
|
||
</div>
|
||
|
||
|
||
|
||
|
||
<div class="wh_content_area">
|
||
<div class="row">
|
||
|
||
<nav id="wh_publication_toc" class="col-lg-3 col-md-3 col-sm-12 d-md-block d-none d-print-none" aria-label="Table of Contents Container">
|
||
<div id="wh_publication_toc_content">
|
||
|
||
<div class=" wh_publication_toc " data-tooltip-position="right"><span class="expand-button-action-labels"><span id="button-expand-action" role="button" aria-label="Expand"></span><span id="button-collapse-action" role="button" aria-label="Collapse"></span><span id="button-pending-action" role="button" aria-label="Pending"></span></span><ul role="tree" aria-label="Table of Contents"><li role="treeitem"><div data-tocid="revinfo_linux-d5856e989" class="topicref" data-id="revinfo_linux" data-state="leaf"><span role="button" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/revinfo/revinfo_rtos.html" id="revinfo_linux-d5856e989-link">修订记录</a></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="id-d5856e1003" class="topicref" data-id="id" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action id-d5856e1003-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/env/sdk-compile.html" id="id-d5856e1003-link">SDK 编译</a><div class="wh-tooltip"><p class="shortdesc">介绍不同编译环境下 SDK 的详细编译流程。</p></div></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="id-d5856e1152" class="topicref" data-id="id" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action id-d5856e1152-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/advanced/sdk-usage.html" id="id-d5856e1152-link">使用指南</a><div class="wh-tooltip"><p class="shortdesc">系统镜像、编译选项、开发板、应用等相关的详细使用说明。</p></div></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="concept_rcx_czh_pzb-d5856e1416" class="topicref" data-id="concept_rcx_czh_pzb" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action concept_rcx_czh_pzb-d5856e1416-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/chapter-app.html" id="concept_rcx_czh_pzb-d5856e1416-link">应用场景</a><div class="wh-tooltip"><p class="shortdesc">描述了 SDK 在不同应用场景中的配置和使用，包括系统更新、OTA、安全方案等。</p></div></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="id-d5856e2119" class="topicref" data-id="id" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action id-d5856e2119-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/peripheral/peripheral-intro.html" id="id-d5856e2119-link">外设移植</a><div class="wh-tooltip"><p class="shortdesc"><span class="ph">CTP、U 盘、SD 卡、有线和无线网络</span>等外设的介绍和使用说明。</p></div></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="id-d5856e2244" class="topicref" data-id="id" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action id-d5856e2244-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/bringup/chapter-bringup.html" id="id-d5856e2244-link">BringUp</a><div class="wh-tooltip"><p class="shortdesc">在硬件上电后快速初始化系统，为操作系统的启动准备好必要的硬件环境。</p></div></div></div></li><li role="treeitem" aria-expanded="true"><div data-tocid="id-d5856e2345" class="topicref" data-id="id" data-state="expanded"><span role="button" tabindex="0" aria-labelledby="button-collapse-action id-d5856e2345-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/chapter-advanced-app.html" id="id-d5856e2345-link">高级应用</a><div class="wh-tooltip"><p class="shortdesc">系统、存储、多媒体、接口、安全等模块的详细配置和设计说明。</p></div></div></div><ul role="group" class="navbar-nav nav-list"><li role="treeitem" aria-expanded="false"><div data-tocid="_0-d5856e2360" class="topicref" data-id="_0" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action _0-d5856e2360-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/boot/lite_boot_direct.html" id="_0-d5856e2360-link">启动引导</a><div class="wh-tooltip"><p class="shortdesc">启动引导程序 Bootloader 可以实现加载启动应用程序、 烧录和升级功能。</p></div></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="chapter-system-d5856e2435" class="topicref" data-id="chapter-system" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action chapter-system-d5856e2435-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/chapter-title/chapter-system.html" id="chapter-system-d5856e2435-link">系统</a><div class="wh-tooltip"><p class="shortdesc"></p></div></div></div></li><li role="treeitem" aria-expanded="true"><div data-tocid="chapter-memory-d5856e3357" class="topicref" data-id="chapter-memory" data-state="expanded"><span role="button" tabindex="0" aria-labelledby="button-collapse-action chapter-memory-d5856e3357-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/chapter-title/chapter-memory-sdk.html" id="chapter-memory-d5856e3357-link">存储</a><div class="wh-tooltip"><p class="shortdesc">SDMC、SPI NAND、SPI NOR<span class="ph"> 以及文件系统</span> 等存储模块的介绍和使用说明。</p></div></div></div><ul role="group" class="navbar-nav nav-list"><li role="treeitem" aria-expanded="true"><div data-tocid="id-d5856e3375" class="topicref" data-id="id" data-state="expanded"><span role="button" tabindex="0" aria-labelledby="button-collapse-action id-d5856e3375-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/sdmc/sdmc-user-guide_2.html" id="id-d5856e3375-link">SDMC 使用指南</a></div></div><ul role="group" class="navbar-nav nav-list"><li role="treeitem"><div data-tocid="id-d5856e3387" class="topicref" data-id="id" data-state="leaf"><span role="button" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/sdmc/sdmc-config-lite.html" id="id-d5856e3387-link">SDMC 配置</a></div></div></li><li role="treeitem"><div data-tocid="id-d5856e3399" class="topicref" data-id="id" data-state="leaf"><span role="button" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/sdmc/sdmc-debug_guide-lite.html" id="id-d5856e3399-link">调试指南</a></div></div></li><li role="treeitem"><div data-tocid="id-d5856e3411" class="topicref" data-id="id" data-state="leaf"><span role="button" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/sdmc/sdmc-test-guide-lite.html" id="id-d5856e3411-link">测试指南</a></div></div></li><li role="treeitem" class="active"><div data-tocid="id-d5856e3423" class="topicref" data-id="id" data-state="leaf"><span role="button" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/sdmc/sdmc-design-guide-lite.html" id="id-d5856e3423-link">设计说明</a></div></div></li><li role="treeitem"><div data-tocid="id-d5856e3435" class="topicref" data-id="id" data-state="leaf"><span role="button" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/sdmc/sdmc-faq_2.html" id="id-d5856e3435-link">常见问题</a></div></div></li></ul></li><li role="treeitem" aria-expanded="false"><div data-tocid="id-d5856e3447" class="topicref" data-id="id" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action id-d5856e3447-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/psram/psram-user-guide.html" id="id-d5856e3447-link">PSRAM 使用指南</a></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="spi_nand_user_guide-d5856e3507" class="topicref" data-id="spi_nand_user_guide" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action spi_nand_user_guide-d5856e3507-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/spinand/spi-nand-user-guide_2.html" id="spi_nand_user_guide-d5856e3507-link">SPI NAND 使用指南</a></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="id-d5856e3591" class="topicref" data-id="id" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action id-d5856e3591-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/spinor/spinor_user_guide_lite.html" id="id-d5856e3591-link">SPI NOR 使用指南</a></div></div></li></ul></li><li role="treeitem" aria-expanded="false"><div data-tocid="concept_mcc_32s_nbc-d5856e3639" class="topicref" data-id="concept_mcc_32s_nbc" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action concept_mcc_32s_nbc-d5856e3639-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/chapter-title/chapter-multi-media-sdk.html" id="concept_mcc_32s_nbc-d5856e3639-link">多媒体</a><div class="wh-tooltip"><p class="shortdesc">GE、VE、Display、DVP、MPP、MPP 播放器等多媒体模块的介绍和使用说明。</p></div></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="concept_nww_hzh_pzb-d5856e4868" class="topicref" data-id="concept_nww_hzh_pzb" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action concept_nww_hzh_pzb-d5856e4868-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/chapter-title/chapter-interface-sdk.html" id="concept_nww_hzh_pzb-d5856e4868-link">接口</a><div class="wh-tooltip"><p class="shortdesc">CAN<span class="ph">、CAP</span>、CIR、GPAI、GPIO、I2C、PSADC、PWM 等接口模块的介绍和使用说明。</p></div></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="chapter-safety-d5856e6083" class="topicref" data-id="chapter-safety" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action chapter-safety-d5856e6083-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/chapter-title/chapter-safety-sdk.html" id="chapter-safety-d5856e6083-link">安全</a><div class="wh-tooltip"><p class="shortdesc">SPI ENC、CE、eFuse 等安全模块的介绍和使用说明。</p></div></div></div></li></ul></li></ul></div>
|
||
|
||
</div>
|
||
</nav>
|
||
|
||
|
||
<div class="col-lg-7 col-md-9 col-sm-12" id="wh_topic_body">
|
||
<button id="wh_close_publication_toc_button" class="close-toc-button d-none" aria-label="Toggle publishing table of content" aria-controls="wh_publication_toc" aria-expanded="true">
|
||
<span class="close-toc-icon-container">
|
||
<span class="close-toc-icon"></span>
|
||
</span>
|
||
</button>
|
||
<button id="wh_close_topic_toc_button" class="close-toc-button d-none" aria-label="Toggle topic table of content" aria-controls="wh_topic_toc" aria-expanded="true">
|
||
<span class="close-toc-icon-container">
|
||
<span class="close-toc-icon"></span>
|
||
</span>
|
||
</button>
|
||
|
||
<div class=" wh_topic_content body "><main role="main"><article class="- topic/topic topic" role="article" aria-labelledby="ariaid-title1"><span class="edit-link" style="font-size:12px; opacity:0.6; text-align:right; vertical-align:middle"><a target="_blank" href="http://172.16.35.88/tasks/jdssno1uvvbf2mltu9kb9v3if05d5gopuakboe8hlud18rma/edit/F:/aicdita/aicdita-cn/topics/sdk/sdmc/sdmc-design-guide-lite.dita">Edit online</a></span><h1 class="- topic/title title topictitle1" id="ariaid-title1">设计说明</h1><div class="date inPage">15 Jan 2024</div><div style="color: gray;">
|
||
Read time: 6 minute(s)
|
||
</div><div class="- topic/body body"><section class="- topic/section section" id="id__id2" data-ofbid="id__id2"><h2 class="- topic/title title sectiontitle">源码说明</h2>
|
||
|
||
<p class="- topic/p p" data-ofbid="d310600e24__20250121171815">源代码位于 <code class="+ topic/ph pr-d/codeph ph codeph">bsp/artinchip/</code>：</p>
|
||
<ul class="- topic/ul ul simple" id="id__ul_ilf_cyh_bdc" data-ofbid="id__ul_ilf_cyh_bdc"><li class="- topic/li li" data-ofbid="d310600e31__20250121171815">
|
||
<p class="- topic/p p" data-ofbid="d310600e33__20250121171815"><span class="+ topic/ph sw-d/filepath ph filepath">bsp/artinchip/drv/sdmc/drv_sdmc.c</span>，SDMC Driver 层实现</p>
|
||
</li><li class="- topic/li li" data-ofbid="d310600e38__20250121171815">
|
||
<p class="- topic/p p" data-ofbid="d310600e40__20250121171815"><span class="+ topic/ph sw-d/filepath ph filepath">bsp/artinchip/hal/sdmc/hal_sdmc.c</span>，SDMC HAL 层实现</p>
|
||
</li><li class="- topic/li li" data-ofbid="d310600e45__20250121171815">
|
||
<p class="- topic/p p" data-ofbid="d310600e47__20250121171815"><span class="+ topic/ph sw-d/filepath ph filepath">bsp/artinchip/include/hal/hal_sdmc.h</span>，SDMC HAL 层接口头文件</p>
|
||
</li></ul>
|
||
<p class="- topic/p p" data-ofbid="d310600e53__20250121171815">此外，提供了一个 Baremetal 设计实例供参考，源代码位于：</p>
|
||
<ul class="- topic/ul ul simple" id="id__ul_jlf_cyh_bdc" data-ofbid="id__ul_jlf_cyh_bdc"><li class="- topic/li li" data-ofbid="d310600e57__20250121171815">
|
||
<p class="- topic/p p" data-ofbid="d310600e59__20250121171815"><span class="+ topic/ph sw-d/filepath ph filepath">bsp/artinchip/drv_bare/sdmc/sdmc.c</span>，Baremetal 的 SDMC
|
||
Driver 层实现</p>
|
||
</li><li class="- topic/li li" data-ofbid="d310600e64__20250121171815">
|
||
<p class="- topic/p p" data-ofbid="d310600e66__20250121171815"><span class="+ topic/ph sw-d/filepath ph filepath">bsp/artinchip/drv_bare/sdmc/mmc.c</span>，Baremetal 的 SDMC
|
||
Driver 层使用实例</p>
|
||
</li><li class="- topic/li li" data-ofbid="d310600e71__20250121171815">
|
||
<p class="- topic/p p" data-ofbid="d310600e73__20250121171815"><span class="+ topic/ph sw-d/filepath ph filepath">bsp/artinchip/drv_bare/sdmc/sdmc.h</span>，Baremetal 的 SDMC
|
||
Driver 层头文件</p>
|
||
</li><li class="- topic/li li" data-ofbid="d310600e78__20250121171815">
|
||
<p class="- topic/p p" data-ofbid="d310600e80__20250121171815"><span class="+ topic/ph sw-d/filepath ph filepath">bsp/artinchip/include/drv_bare/mmc.h</span>，Baremetal 的 SDMC
|
||
Driver 层使用实例头文件</p>
|
||
</li><li class="- topic/li li" data-ofbid="d310600e85__20250121171815">
|
||
<p class="- topic/p p" data-ofbid="d310600e87__20250121171815"><span class="+ topic/ph sw-d/filepath ph filepath">packages/third-party/dfs</span>，Baremetal 的文件系统实现</p>
|
||
</li></ul>
|
||
</section><section class="- topic/section section" id="id__id3" data-ofbid="id__id3"><h2 class="- topic/title title sectiontitle">模块架构</h2>
|
||
|
||
<p class="- topic/p p" data-ofbid="d310600e98__20250121171815">SDMC 驱动 Driver 层采用 RT-Thread 的 SDIO 设备驱动框架，如果只使用 HAL 层也可以支持 Baremetal 方式的应用场景。</p>
|
||
<figure class="- topic/fig fig fignone" id="id__id12" data-ofbid="id__id12"><br/><div class="imagecenter"><img class="- topic/image image imagecenter" id="id__image_klf_cyh_bdc" src="../../../images/sdmc/sw_system15.png" width="288" alt="sw_system"/></div><br/><figcaption data-caption-side="bottom" class="- topic/title title figcapcenter"><span class="figtitleprefix fig--title-label">图<span class="fig--title-label-number"> 1</span><span class="fig--title-label-punctuation">. </span></span><span class="fig--title">SDMC 模块驱动的软件框架</span></figcaption></figure>
|
||
<p class="- topic/p p" data-ofbid="d310600e108__20250121171815">其中：</p>
|
||
<ul class="- topic/ul ul arabic simple" id="id__ol_llf_cyh_bdc" data-ofbid="id__ol_llf_cyh_bdc"><li class="- topic/li li" data-ofbid="d310600e112__20250121171815">
|
||
<p class="- topic/p p" data-ofbid="d310600e114__20250121171815">DFS 层：Baremetal 文件系统层，提供接口给 Baremetal APP 读写 Baremetal SDMC 文件。</p>
|
||
</li><li class="- topic/li li" data-ofbid="d310600e117__20250121171815">
|
||
<p class="- topic/p p" data-ofbid="d310600e119__20250121171815">Baremetal MMC 层：向上对接 DFS，提供读写接口；向下对接 Baremetal SDMC driver 层。</p>
|
||
</li><li class="- topic/li li" data-ofbid="d310600e122__20250121171815">
|
||
<p class="- topic/p p" data-ofbid="d310600e124__20250121171815">Baremetal SDMC Driver 层：提供 SDMC 驱动初始化接口，方便 Baremetal MMC 层的访问。</p>
|
||
</li><li class="- topic/li li" data-ofbid="d310600e127__20250121171815">
|
||
<p class="- topic/p p" data-ofbid="d310600e129__20250121171815">SDMC Driver 层：负责对接 SDIO 设备框架，注册成块设备，方便应用层的访问。</p>
|
||
</li><li class="- topic/li li" data-ofbid="d310600e132__20250121171815">
|
||
<p class="- topic/p p" data-ofbid="d310600e134__20250121171815">SDMC HAL 层：封装了寄存器级别的操作，对 Driver 层屏蔽硬件级别的访问。</p>
|
||
</li></ul>
|
||
</section><section class="- topic/section section" id="id__id4" data-ofbid="id__id4"><h2 class="- topic/title title sectiontitle">关键流程设计</h2>
|
||
|
||
<div class="- topic/div div section" id="id__rt-thread">
|
||
<strong class="+ topic/ph hi-d/b ph b">RT-Thread 初始化流程</strong>
|
||
<p class="- topic/p p" data-ofbid="d310600e148__20250121171815">SDMC 控制器驱动的初始化接口通过 <code class="+ topic/ph pr-d/codeph ph codeph">INIT_DEVICE_EXPORT(drv_sdmc_init)</code> 完成注册。
|
||
其中，主要步骤如下：</p><ol class="- topic/ol ol arabic simple" id="id__ol_mlf_cyh_bdc" data-ofbid="id__ol_mlf_cyh_bdc"><li class="- topic/li li" data-ofbid="d310600e154__20250121171815">
|
||
<p class="- topic/p p" data-ofbid="d310600e156__20250121171815">分配 host 管理结构（包括 rt_mmcsd_host 和 aic_sdmc）</p>
|
||
</li><li class="- topic/li li" data-ofbid="d310600e159__20250121171815">
|
||
<p class="- topic/p p" data-ofbid="d310600e161__20250121171815">初始化模块的 clk</p>
|
||
</li><li class="- topic/li li" data-ofbid="d310600e164__20250121171815">
|
||
<p class="- topic/p p" data-ofbid="d310600e166__20250121171815">注册中断</p>
|
||
</li><li class="- topic/li li" data-ofbid="d310600e169__20250121171815">
|
||
<p class="- topic/p p" data-ofbid="d310600e171__20250121171815">初始化控制器</p>
|
||
</li><li class="- topic/li li" data-ofbid="d310600e174__20250121171815">
|
||
<p class="- topic/p p" data-ofbid="d310600e176__20250121171815">通知 mmcsd 监测线程（mmcsd_change）</p>
|
||
</li></ol></div>
|
||
<div class="- topic/div div section" id="id__baremetal">
|
||
<strong class="+ topic/ph hi-d/b ph b">Baremetal 初始化流程</strong>
|
||
<p class="- topic/p p" data-ofbid="d310600e185__20250121171815">SDMC 控制器驱动通过 <code class="+ topic/ph pr-d/codeph ph codeph">mmc_init()</code> 完成初始化。 其中，主要步骤如下：</p><ol class="- topic/ol ol arabic simple" id="id__ol_nlf_cyh_bdc" data-ofbid="id__ol_nlf_cyh_bdc"><li class="- topic/li li" data-ofbid="d310600e191__20250121171815">
|
||
<p class="- topic/p p" data-ofbid="d310600e193__20250121171815">分配 host 管理结构和 dev 设备信息结构（aic_sdmc 和 aic_sdmc_dev）</p>
|
||
</li><li class="- topic/li li" data-ofbid="d310600e196__20250121171815">
|
||
<p class="- topic/p p" data-ofbid="d310600e198__20250121171815">初始化模块的 clk</p>
|
||
</li><li class="- topic/li li" data-ofbid="d310600e201__20250121171815">
|
||
<p class="- topic/p p" data-ofbid="d310600e203__20250121171815">注册中断</p>
|
||
</li><li class="- topic/li li" data-ofbid="d310600e206__20250121171815">
|
||
<p class="- topic/p p" data-ofbid="d310600e208__20250121171815">初始化控制器</p>
|
||
</li></ol><div class="- topic/note note note note_note" id="id__note_dkp_y13_ddc" data-ofbid="id__note_dkp_y13_ddc"><span class="note__title">注：</span>
|
||
<p class="- topic/p p" data-ofbid="d310600e213__20250121171815">为了简化设计，SDMC 驱动中目前未使用中断方式，使用轮询方式完成和 Device 的交互。</p>
|
||
</div></div>
|
||
</section><section class="- topic/section section" id="id__id5" data-ofbid="id__id5"><h2 class="- topic/title title sectiontitle">数据结构设计</h2>
|
||
|
||
<div class="- topic/div div section" id="id__struct-aic-sdmc-host">
|
||
<strong class="+ topic/ph hi-d/b ph b">struct aic_sdmc_host</strong>
|
||
<div class="- topic/p p" data-ofbid="d310600e227__20250121171815">属于 HAL 层接口，定义了 SDMC 控制器
|
||
管理信息：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="id__codeblock_hb3_y13_ddc" data-ofbid="id__codeblock_hb3_y13_ddc"><strong class="hl-keyword">struct</strong> aic_sdmc_host {
|
||
<strong class="hl-keyword">volatile</strong> <strong class="hl-keyword">void</strong> *base;
|
||
u32 is_sdio;
|
||
u32 fifoth_val;
|
||
#ifdef AIC_SDMC_IRQ_MODE
|
||
aicos_sem_t complete;
|
||
#endif
|
||
};</pre></div></div>
|
||
<div class="- topic/div div section" id="id__struct-aic-sdmc-idma-desc">
|
||
<strong class="+ topic/ph hi-d/b ph b">struct aic_sdmc_idma_desc</strong>
|
||
<div class="- topic/p p" data-ofbid="d310600e237__20250121171815">属于 HAL 层接口，记录了 SDMC 控制器内部 DMA
|
||
访问的描述符：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="id__codeblock_tbh_y13_ddc" data-ofbid="id__codeblock_tbh_y13_ddc"><strong class="hl-keyword">struct</strong> aic_sdmc_idma_desc {
|
||
u32 flags;
|
||
u32 cnt;
|
||
u32 addr;
|
||
u32 next_addr;
|
||
} __aligned(<span class="hl-number">8</span>);</pre></div>
|
||
</div>
|
||
<div class="- topic/div div section" id="id__struct-aic-sdmc">
|
||
<strong class="+ topic/ph hi-d/b ph b">struct aic_sdmc</strong>
|
||
<div class="- topic/div div section" id="id__id6">
|
||
<strong class="+ topic/ph hi-d/b ph b">RT-Thread</strong>
|
||
<div class="- topic/p p" data-ofbid="d310600e253__20250121171815">属于 Driver 层的内部接口，用于记录 SDMC
|
||
控制器的管理信息：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="id__codeblock_gw2_y13_ddc" data-ofbid="id__codeblock_gw2_y13_ddc"><strong class="hl-keyword">struct</strong> aic_sdmc {
|
||
<strong class="hl-keyword">struct</strong> rt_mmcsd_host *rthost;
|
||
<strong class="hl-keyword">struct</strong> rt_mmcsd_req *req;
|
||
<strong class="hl-keyword">struct</strong> rt_mmcsd_cmd *cmd;
|
||
<strong class="hl-keyword">struct</strong> aic_sdmc_host host;
|
||
|
||
rt_uint32_t *buf;
|
||
u32 clk;
|
||
u32 irq;
|
||
u32 index;
|
||
u32 cid[<span class="hl-number">4</span>];
|
||
|
||
<strong class="hl-keyword">unsigned</strong> <strong class="hl-keyword">int</strong> quirks;
|
||
<strong class="hl-keyword">unsigned</strong> <strong class="hl-keyword">int</strong> caps;
|
||
<strong class="hl-keyword">unsigned</strong> <strong class="hl-keyword">int</strong> version;
|
||
<strong class="hl-keyword">unsigned</strong> <strong class="hl-keyword">int</strong> clock;
|
||
<strong class="hl-keyword">unsigned</strong> <strong class="hl-keyword">int</strong> sclk_rate;
|
||
<strong class="hl-keyword">unsigned</strong> <strong class="hl-keyword">int</strong> div;
|
||
<strong class="hl-keyword">int</strong> buswidth;
|
||
<strong class="hl-keyword">int</strong> ddr_mode;
|
||
|
||
<em class="hl-comment">/* use fifo mode to read and write data */</em>
|
||
<strong class="hl-keyword">int</strong> fifo_mode;
|
||
|
||
<strong class="hl-keyword">struct</strong> aic_sdmc_pdata *pdata;
|
||
|
||
u8 is_enable;
|
||
};</pre></div></div><div class="- topic/div div section" id="id__id7">
|
||
<strong class="+ topic/ph hi-d/b ph b">Baremetal</strong>
|
||
<div class="- topic/p p" data-ofbid="d310600e262__20250121171815">属于 Baremetal Driver 层的内部接口，用于记录 SDMC
|
||
控制器的管理信息：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="id__codeblock_dnb_y13_ddc" data-ofbid="id__codeblock_dnb_y13_ddc"><strong class="hl-keyword">struct</strong> aic_sdmc {
|
||
<strong class="hl-keyword">struct</strong> aic_sdmc_dev *dev;
|
||
<strong class="hl-keyword">struct</strong> aic_sdmc_cmd *cmd;
|
||
<strong class="hl-keyword">struct</strong> aic_sdmc_data *data;
|
||
<strong class="hl-keyword">struct</strong> aic_sdmc_host host;
|
||
|
||
u32 *buf;
|
||
u32 clk;
|
||
u32 irq;
|
||
u32 index;
|
||
|
||
<strong class="hl-keyword">unsigned</strong> <strong class="hl-keyword">int</strong> quirks;
|
||
<strong class="hl-keyword">unsigned</strong> <strong class="hl-keyword">int</strong> caps;
|
||
<strong class="hl-keyword">unsigned</strong> <strong class="hl-keyword">int</strong> version;
|
||
<strong class="hl-keyword">unsigned</strong> <strong class="hl-keyword">int</strong> clock;
|
||
<strong class="hl-keyword">unsigned</strong> <strong class="hl-keyword">int</strong> sclk_rate;
|
||
<strong class="hl-keyword">unsigned</strong> <strong class="hl-keyword">int</strong> div;
|
||
<strong class="hl-keyword">int</strong> buswidth;
|
||
<strong class="hl-keyword">int</strong> ddr_mode;
|
||
|
||
<em class="hl-comment">/* use fifo mode to read and write data */</em>
|
||
<strong class="hl-keyword">int</strong> fifo_mode;
|
||
|
||
<strong class="hl-keyword">struct</strong> aic_sdmc_pdata *pdata;
|
||
};</pre></div></div></div>
|
||
</section><section class="- topic/section section" id="id__driver" data-ofbid="id__driver"><h2 class="- topic/title title sectiontitle">Driver 层接口设计</h2>
|
||
|
||
<ol class="- topic/ol ol arabic simple" id="id__ol_slf_cyh_bdc" data-ofbid="id__ol_slf_cyh_bdc"><li class="- topic/li li" data-ofbid="d310600e273__20250121171815">
|
||
<p class="- topic/p p" data-ofbid="d310600e275__20250121171815">Baremetal Driver 参考 Driver 层设计，去除了 RT-Thread 所需的结构信息。</p>
|
||
</li><li class="- topic/li li" data-ofbid="d310600e278__20250121171815">
|
||
<div class="- topic/p p" data-ofbid="d310600e280__20250121171815">以下接口皆为 SDIO 设备驱动框架所需要的标准接口，目前 SDMC 驱动仅实现了其中的 request 和 set_iocfg
|
||
接口。<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="id__codeblock_hz5_x13_ddc" data-ofbid="id__codeblock_hz5_x13_ddc"><strong class="hl-keyword">struct</strong> rt_mmcsd_host_ops {
|
||
<strong class="hl-keyword">void</strong> (*request)(<strong class="hl-keyword">struct</strong> rt_mmcsd_host *host, <strong class="hl-keyword">struct</strong> rt_mmcsd_req *req);
|
||
<strong class="hl-keyword">void</strong> (*set_iocfg)(<strong class="hl-keyword">struct</strong> rt_mmcsd_host *host, <strong class="hl-keyword">struct</strong> rt_mmcsd_io_cfg *io_cfg);
|
||
rt_int32_t (*get_card_status)(<strong class="hl-keyword">struct</strong> rt_mmcsd_host *host);
|
||
<strong class="hl-keyword">void</strong> (*enable_sdio_irq)(<strong class="hl-keyword">struct</strong> rt_mmcsd_host *host, rt_int32_t en);
|
||
};</pre></div>
|
||
</li></ol>
|
||
<div class="- topic/div div section" id="id__aic-sdmc-request">
|
||
<strong class="+ topic/ph hi-d/b ph b">aic_sdmc_request</strong>
|
||
<div class="table-container"><table class="- topic/table table frame-all" id="id__table_ulf_cyh_bdc" data-ofbid="id__table_ulf_cyh_bdc" data-cols="2"><caption class="- topic/title title tablecap" data-caption-side="top" data-is-repeated="true"><span class="table--title-label">表<span class="table--title-label-number"> 1</span><span class="table--title-label-punctuation">. </span></span><span class="table--title">RT-Thread</span></caption><colgroup><col/><col/></colgroup><thead class="- topic/thead thead"><tr class="- topic/row"><th class="- topic/entry entry colsep-1 rowsep-1" id="id__table_ulf_cyh_bdc__entry__1">函数原型</th><th class="- topic/entry entry colsep-0 rowsep-1" id="id__table_ulf_cyh_bdc__entry__2">void aic_sdmc_request(struct rt_mmcsd_host *rthost, struct
|
||
rt_mmcsd_req *req)</th></tr></thead><tbody class="- topic/tbody tbody"><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_ulf_cyh_bdc__entry__1">功能说明</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="id__table_ulf_cyh_bdc__entry__2">请求 SDMC 控制器向 Device 发送一个报文</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_ulf_cyh_bdc__entry__1">参数定义</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="id__table_ulf_cyh_bdc__entry__2">
|
||
<div class="- topic/div div">
|
||
<div class="- topic/div div"><code class="+ topic/ph pr-d/codeph ph codeph">rthost</code> : 指向 SDIO 层的 mmcsd 控制器</div>
|
||
<div class="- topic/div div"><code class="+ topic/ph pr-d/codeph ph codeph">req</code> ：请求的参数和资源</div>
|
||
</div>
|
||
</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_ulf_cyh_bdc__entry__1">返回值</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="id__table_ulf_cyh_bdc__entry__2">无</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-0" headers="id__table_ulf_cyh_bdc__entry__1">注意事项</td><td class="- topic/entry entry colsep-0 rowsep-0" headers="id__table_ulf_cyh_bdc__entry__2">-</td></tr></tbody></table></div><div class="table-container"><table class="- topic/table table frame-all" id="id__table_vlf_cyh_bdc" data-ofbid="id__table_vlf_cyh_bdc" data-cols="2"><caption class="- topic/title title tablecap" data-caption-side="top" data-is-repeated="true"><span class="table--title-label">表<span class="table--title-label-number"> 2</span><span class="table--title-label-punctuation">. </span></span><span class="table--title">Baremetal</span></caption><colgroup><col/><col/></colgroup><thead class="- topic/thead thead"><tr class="- topic/row"><th class="- topic/entry entry colsep-1 rowsep-1" id="id__table_vlf_cyh_bdc__entry__1">函数原型</th><th class="- topic/entry entry colsep-0 rowsep-1" id="id__table_vlf_cyh_bdc__entry__2">void aic_sdmc_request(struct aic_sdmc *host, struct
|
||
aic_sdmc_cmd *cmd, struct aic_sdmc_data *data)</th></tr></thead><tbody class="- topic/tbody tbody"><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_vlf_cyh_bdc__entry__1">功能说明</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="id__table_vlf_cyh_bdc__entry__2">请求 SDMC 控制器向 Device 发送一个报文</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_vlf_cyh_bdc__entry__1">参数定义</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="id__table_vlf_cyh_bdc__entry__2">
|
||
<div class="- topic/div div">
|
||
<div class="- topic/div div">host: 指向上层调用的 mmcsd 控制器</div>
|
||
<div class="- topic/div div"><code class="+ topic/ph pr-d/codeph ph codeph">cmd</code> : 请求发送的命令</div>
|
||
<div class="- topic/div div"><code class="+ topic/ph pr-d/codeph ph codeph">data</code> : 请求发送的数据</div>
|
||
</div>
|
||
</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_vlf_cyh_bdc__entry__1">返回值</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="id__table_vlf_cyh_bdc__entry__2">无</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-0" headers="id__table_vlf_cyh_bdc__entry__1">注意事项</td><td class="- topic/entry entry colsep-0 rowsep-0" headers="id__table_vlf_cyh_bdc__entry__2">-</td></tr></tbody></table></div></div>
|
||
<div class="- topic/div div section" id="id__aic-sdmc-set-iocfg">
|
||
<strong class="+ topic/ph hi-d/b ph b">aic_sdmc_set_iocfg</strong>
|
||
<div class="table-container"><table class="- topic/table table frame-all" id="id__table_wlf_cyh_bdc" data-ofbid="id__table_wlf_cyh_bdc" data-cols="2"><caption class="- topic/title title tablecap" data-caption-side="top" data-is-repeated="true"><span class="table--title-label">表<span class="table--title-label-number"> 3</span><span class="table--title-label-punctuation">. </span></span><span class="table--title">RT-Thread</span></caption><colgroup><col style="width:16.666666666666664%"/><col style="width:83.33333333333334%"/></colgroup><thead class="- topic/thead thead"><tr class="- topic/row"><th class="- topic/entry entry colsep-1 rowsep-1" id="id__table_wlf_cyh_bdc__entry__1">函数原型</th><th class="- topic/entry entry colsep-0 rowsep-1" id="id__table_wlf_cyh_bdc__entry__2">void aic_sdmc_set_iocfg(struct rt_mmcsd_host *rthost, struct
|
||
rt_mmcsd_io_cfg *io_cfg)</th></tr></thead><tbody class="- topic/tbody tbody"><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_wlf_cyh_bdc__entry__1">功能说明</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="id__table_wlf_cyh_bdc__entry__2">配置位宽、DDR 模式、clock、power 模式等信息</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_wlf_cyh_bdc__entry__1">参数定义</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="id__table_wlf_cyh_bdc__entry__2">
|
||
<div class="- topic/div div">
|
||
<div class="- topic/div div"><code class="+ topic/ph pr-d/codeph ph codeph">rthost</code> : 指向 SDIO 层的 mmcsd 控制器</div>
|
||
<div class="- topic/div div"><code class="+ topic/ph pr-d/codeph ph codeph">io_cfg</code> ：配置参数</div>
|
||
</div>
|
||
</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_wlf_cyh_bdc__entry__1">返回值</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="id__table_wlf_cyh_bdc__entry__2">无</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-0" headers="id__table_wlf_cyh_bdc__entry__1">注意事项</td><td class="- topic/entry entry colsep-0 rowsep-0" headers="id__table_wlf_cyh_bdc__entry__2">-</td></tr></tbody></table></div><div class="table-container"><table class="- topic/table table frame-all" id="id__table_xlf_cyh_bdc" data-ofbid="id__table_xlf_cyh_bdc" data-cols="2"><caption class="- topic/title title tablecap" data-caption-side="top" data-is-repeated="true"><span class="table--title-label">表<span class="table--title-label-number"> 4</span><span class="table--title-label-punctuation">. </span></span><span class="table--title">Baremetal</span></caption><colgroup><col style="width:16.666666666666664%"/><col style="width:83.33333333333334%"/></colgroup><thead class="- topic/thead thead"><tr class="- topic/row"><th class="- topic/entry entry colsep-1 rowsep-1" id="id__table_xlf_cyh_bdc__entry__1">函数原型</th><th class="- topic/entry entry colsep-0 rowsep-1" id="id__table_xlf_cyh_bdc__entry__2">void aic_sdmc_set_cfg(struct aic_sdmc *host)</th></tr></thead><tbody class="- topic/tbody tbody"><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_xlf_cyh_bdc__entry__1">功能说明</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="id__table_xlf_cyh_bdc__entry__2">配置位宽、DDR 模式、clock、power 模式等信息</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_xlf_cyh_bdc__entry__1">参数定义</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="id__table_xlf_cyh_bdc__entry__2">
|
||
<div class="- topic/div div">
|
||
<div class="- topic/div div"><code class="+ topic/ph pr-d/codeph ph codeph">host</code> : 指向上层调用的 mmcsd 控制器</div>
|
||
</div>
|
||
</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="id__table_xlf_cyh_bdc__entry__1">返回值</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="id__table_xlf_cyh_bdc__entry__2">无</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-0" headers="id__table_xlf_cyh_bdc__entry__1">注意事项</td><td class="- topic/entry entry colsep-0 rowsep-0" headers="id__table_xlf_cyh_bdc__entry__2">-</td></tr></tbody></table></div></div>
|
||
</section><section class="- topic/section section" id="id__hal" data-ofbid="id__hal"><h2 class="- topic/title title sectiontitle">HAL 层接口设计</h2>
|
||
|
||
<div class="- topic/p p" data-ofbid="d310600e485__20250121171815">HAL 层的函数接口声明存放在 <span class="+ topic/ph sw-d/filepath ph filepath">hal_sdmc.h</span>
|
||
中，主要接口有：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="id__codeblock_smc_513_ddc" data-ofbid="id__codeblock_smc_513_ddc"><strong class="hl-keyword">void</strong> hal_sdmc_idma_update_intstat(<strong class="hl-keyword">struct</strong> aic_sdmc_host *host);
|
||
<strong class="hl-keyword">int</strong> hal_sdmc_idma_start(<strong class="hl-keyword">struct</strong> aic_sdmc_host *host, u32 size, u32 read,
|
||
u32 *buf, <strong class="hl-keyword">struct</strong> bounce_buffer *bbstate);
|
||
<strong class="hl-keyword">int</strong> hal_sdmc_idma_stop(<strong class="hl-keyword">struct</strong> aic_sdmc_host *host,
|
||
<strong class="hl-keyword">struct</strong> bounce_buffer *bbstate, u32 read);
|
||
<strong class="hl-keyword">void</strong> hal_sdmc_idma_disable(<strong class="hl-keyword">struct</strong> aic_sdmc_host *host);
|
||
u8 hal_sdmc_get_idma_status(<strong class="hl-keyword">struct</strong> aic_sdmc_host *host);
|
||
<strong class="hl-keyword">void</strong> hal_sdmc_idma_prepare(<strong class="hl-keyword">struct</strong> aic_sdmc_host *host,
|
||
u32 blksize, u32 blks,
|
||
<strong class="hl-keyword">struct</strong> aic_sdmc_idma_desc *cur_idma,
|
||
<strong class="hl-keyword">void</strong> *bounce_buffer);
|
||
<strong class="hl-keyword">int</strong> hal_sdmc_data_rx(<strong class="hl-keyword">struct</strong> aic_sdmc_host *host, u32 *buf, u32 size);
|
||
<strong class="hl-keyword">int</strong> hal_sdmc_data_tx(<strong class="hl-keyword">struct</strong> aic_sdmc_host *host, u32 *buf, u32 size);
|
||
|
||
u32 hal_sdmc_int_stat(<strong class="hl-keyword">struct</strong> aic_sdmc_host *host);
|
||
<strong class="hl-keyword">void</strong> hal_sdmc_int_clr(<strong class="hl-keyword">struct</strong> aic_sdmc_host *host, u32 mask);
|
||
<strong class="hl-keyword">int</strong> hal_sdmc_is_busy(<strong class="hl-keyword">struct</strong> aic_sdmc_host *host);
|
||
|
||
<strong class="hl-keyword">void</strong> hal_sdmc_set_blk(<strong class="hl-keyword">struct</strong> aic_sdmc_host *host, u32 blksize, u32 blks);
|
||
<strong class="hl-keyword">void</strong> hal_sdmc_set_arg(<strong class="hl-keyword">struct</strong> aic_sdmc_host *host, u32 arg);
|
||
<strong class="hl-keyword">void</strong> hal_sdmc_set_cmd(<strong class="hl-keyword">struct</strong> aic_sdmc_host *host, u32 cmd);
|
||
u32 hal_sdmc_wait_cmd_started(<strong class="hl-keyword">struct</strong> aic_sdmc_host *host);
|
||
<strong class="hl-keyword">void</strong> hal_sdmc_get_rsp(<strong class="hl-keyword">struct</strong> aic_sdmc_host *host, u32 *buf, u32 all);
|
||
|
||
<strong class="hl-keyword">void</strong> aic_sdmc_set_ext_clk_mux(<strong class="hl-keyword">struct</strong> aic_sdmc_host *host, u32 mux);
|
||
<strong class="hl-keyword">void</strong> hal_sdmc_set_phase(<strong class="hl-keyword">struct</strong> aic_sdmc_host *host, u32 drv, u32 smp);
|
||
<strong class="hl-keyword">void</strong> hal_sdmc_set_buswidth(<strong class="hl-keyword">struct</strong> aic_sdmc_host *host, u32 buswidth);
|
||
<strong class="hl-keyword">void</strong> hal_sdmc_set_ddrmode(<strong class="hl-keyword">struct</strong> aic_sdmc_host *host, u32 ddr);
|
||
<strong class="hl-keyword">void</strong> hal_sdmc_clk_disable(<strong class="hl-keyword">struct</strong> aic_sdmc_host *host);
|
||
<strong class="hl-keyword">void</strong> hal_sdmc_clk_enable(<strong class="hl-keyword">struct</strong> aic_sdmc_host *host);
|
||
<strong class="hl-keyword">void</strong> hal_sdmc_sdio_irq_enable(<strong class="hl-keyword">struct</strong> aic_sdmc_host *host, u32 en);
|
||
<strong class="hl-keyword">void</strong> hal_sdmc_set_div(<strong class="hl-keyword">struct</strong> aic_sdmc_host *host, u32 div);
|
||
|
||
<strong class="hl-keyword">void</strong> hal_sdmc_fifo_init(<strong class="hl-keyword">struct</strong> aic_sdmc_host *host, u32 *thd);
|
||
<strong class="hl-keyword">int</strong> hal_sdmc_reset(<strong class="hl-keyword">struct</strong> aic_sdmc_host *host, u32 value);
|
||
<strong class="hl-keyword">void</strong> hal_sdmc_init(<strong class="hl-keyword">struct</strong> aic_sdmc_host *host);</pre></div>
|
||
</section></div></article></main></div>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
</div>
|
||
|
||
<nav role="navigation" id="wh_topic_toc" aria-label="On this page" class="col-lg-2 d-none d-lg-block navbar d-print-none">
|
||
<div id="wh_topic_toc_content">
|
||
|
||
<div class=" wh_topic_toc "><div class="wh_topic_label">在本页上</div><ul><li class="section-item"><div class="section-title"><a href="#id__id2" data-tocid="id__id2">源码说明</a></div></li><li class="section-item"><div class="section-title"><a href="#id__id3" data-tocid="id__id3">模块架构</a></div></li><li class="section-item"><div class="section-title"><a href="#id__id4" data-tocid="id__id4">关键流程设计</a></div></li><li class="section-item"><div class="section-title"><a href="#id__id5" data-tocid="id__id5">数据结构设计</a></div></li><li class="section-item"><div class="section-title"><a href="#id__driver" data-tocid="id__driver">Driver 层接口设计</a></div></li><li class="section-item"><div class="section-title"><a href="#id__hal" data-tocid="id__hal">HAL 层接口设计</a></div></li></ul></div>
|
||
|
||
</div>
|
||
</nav>
|
||
|
||
</div>
|
||
</div>
|
||
|
||
|
||
|
||
</div>
|
||
<footer class="navbar navbar-default wh_footer">
|
||
<div class=" footer-container mx-auto ">
|
||
<title>footer def</title>
|
||
<style><!--
|
||
|
||
.p1 {
|
||
font-family: FangZhengShuSong, Times, serif;
|
||
}
|
||
.p2 {
|
||
font-family: Arial, Helvetica, sans-serif;
|
||
}
|
||
.p3 {
|
||
font-family: "Lucida Console", "Courier New", monospace;
|
||
}
|
||
|
||
--></style>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<div class="webhelp.fragment.footer">
|
||
<p class="p1">Copyright © 2019-2024 广东匠芯创科技有限公司. All rights reserved.</p>
|
||
</div><div>
|
||
<div class="generation_time">
|
||
Update Time: 2025-01-21
|
||
</div>
|
||
</div>
|
||
</div>
|
||
</footer>
|
||
|
||
<div id="go2top" class="d-print-none">
|
||
<span class="oxy-icon oxy-icon-up"></span>
|
||
</div>
|
||
|
||
<div id="modal_img_large" class="modal">
|
||
<span class="close oxy-icon oxy-icon-remove"></span>
|
||
<div id="modal_img_container"></div>
|
||
<div id="caption"></div>
|
||
</div>
|
||
|
||
|
||
<script src="${pd}/publishing/publishing-styles-AIC-template/js/custom.js" defer="defer"></script>
|
||
|
||
|
||
</body>
|
||
</html> |