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aria-expanded="false"><div data-tocid="audio_codec_user_guide-d4445e5806" class="topicref" data-id="audio_codec_user_guide" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action audio_codec_user_guide-d4445e5806-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/audio_codec/audio-codec-user-guide.html" id="audio_codec_user_guide-d4445e5806-link">Audio Codec 使用指南</a></div></div></li></ul></li><li role="treeitem" aria-expanded="false"><div data-tocid="concept_nww_hzh_pzb-d4445e5947" 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-d4445e5947-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/chapter-title/chapter-interface-sdk.html" id="concept_nww_hzh_pzb-d4445e5947-link">接口</a><div class="wh-tooltip"><p class="shortdesc">CAN、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-d4445e7944" class="topicref" data-id="chapter-safety" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action chapter-safety-d4445e7944-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/chapter-title/chapter-safety-sdk.html" id="chapter-safety-d4445e7944-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>
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<div class=" wh_topic_content body "><main role="main"><article class="- topic/topic concept/concept topic concept" role="article" aria-labelledby="ariaid-title1">
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<span class="edit-link" style="font-size:12px; opacity:0.6; text-align:right; vertical-align:middle"><a target="_blank" title="Edit this document" href="http://172.16.35.88/tasks/jdssno1uvvbf2mltu9kb9v3if05d5gopuakboe8hlud18rma/edit/F:/aicdita/aicdita-cn/topics/sdk/display/display_sourcecode_and_arch.dita">Edit online</a></span><h1 class="- topic/title title topictitle1" id="ariaid-title1">源码和框架说明</h1>
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<div class="date inPage">15 Jan 2024</div><div style="color: gray;">
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Read time: 1 minute(s)
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<div class="- topic/body concept/conbody body conbody">
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<section class="- topic/section section" id="display_component_architecture__section_p4d_fck_ndc" data-ofbid="display_component_architecture__section_p4d_fck_ndc"><h2 class="- topic/title title sectiontitle">源码说明</h2>
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<div class="- topic/p p" data-ofbid="d176116e38__20250123155218">本模块源代码在内核目录 <span class="+ topic/ph sw-d/filepath ph filepath">linux-5.10/drivers/video/artinchip/disp</span>
|
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下，目录结构如下：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="display_component_architecture__pre_rh5_3zf_d1c" data-ofbid="display_component_architecture__pre_rh5_3zf_d1c"><code>├── aic_com.h <em class="hl-comment">// 显示驱动共用的头文件，其中定义了寄存器、共用数据结构、全局函数等</em>
|
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├── aic_fb.c <em class="hl-comment">// 对接 fbdev 框架，并进行扩展</em>
|
||
├── aic_de.c <em class="hl-comment">// 显示引擎驱动</em>
|
||
├── aic_dsi.c <em class="hl-comment">// mipi-dsi 显示接口驱动</em>
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├── aic_lvds.c <em class="hl-comment">// lvds 显示接口驱动</em>
|
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├── aic_rgb.c <em class="hl-comment">// rgb 显示接口驱动</em>
|
||
├── hw/ <em class="hl-comment">// 显示引擎和显示接口的寄存器封装</em>
|
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└── panel/ <em class="hl-comment">// 屏驱动</em></code></pre></div>
|
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<div class="- topic/p p" data-ofbid="d176116e46__20250123155218">关于本模块的 device tree bindings 文档，可查看以下目录中的 txt 文件：<ul class="- topic/ul ul" id="display_component_architecture__ul_a41_kzf_d1c" data-ofbid="display_component_architecture__ul_a41_kzf_d1c">
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<li class="- topic/li li" data-ofbid="d176116e50__20250123155218"><span class="+ topic/ph sw-d/filepath ph filepath">/Documentation/devicetree/bindings/display/</span></li>
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<li class="- topic/li li" data-ofbid="d176116e54__20250123155218"><span class="+ topic/ph sw-d/filepath ph filepath">/Documentation/devicetree/bindings/display/panel/</span></li>
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</ul></div>
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</section>
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<section class="- topic/section section" id="display_component_architecture__section_ycq_4zf_d1c" data-ofbid="display_component_architecture__section_ycq_4zf_d1c"><h2 class="- topic/title title sectiontitle">fbdev 框架</h2>
|
||
|
||
<p class="- topic/p p" data-ofbid="d176116e65__20250123155218">ArtInChip 平台的显示模块驱动基于 fbdev 框架。</p>
|
||
<p class="- topic/p p" data-ofbid="d176116e68__20250123155218">关于 fbdev 架构的文档，可查看 <span class="+ topic/ph sw-d/filepath ph filepath">Documentation/fb/framebuffer.txt</span> 或在线阅读 <a class="- topic/xref xref" href="https:/www.kernel.org/doc/Documentation/fb/framebuffer.txt" target="_blank" rel="external noopener">https:/www.kernel.org/doc/Documentation/fb/framebuffer.txt</a></p>
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</section>
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<section class="- topic/section section" id="display_component_architecture__section_zcq_4zf_d1c" data-ofbid="display_component_architecture__section_zcq_4zf_d1c"><h2 class="- topic/title title sectiontitle">Componet 框架</h2>
|
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|
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<p class="- topic/p p" data-ofbid="d176116e81__20250123155218">框架代码：<span class="+ topic/ph sw-d/filepath ph filepath">linux-5.10/drivers/base/component.c</span></p>
|
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<p class="- topic/p p" data-ofbid="d176116e86__20250123155218">Linux 引入 Componet 框架是为了 Subsystems 能按照一定的顺序初始化设备。Subsystems，例如
|
||
ALSA、DRM，整个框架包含较多子设备模块，但内核加载每个子模块的时间不定，因此需要 Componet 框架进行约束。</p>
|
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<p class="- topic/p p" data-ofbid="d176116e89__20250123155218">Component 框架通过 dts 将所有子设备关联到一个主设备上，主设备会管理子设备的加载顺序，保证所有设备正常使用。</p>
|
||
<p class="- topic/p p" data-ofbid="d176116e92__20250123155218">在 <span class="+ topic/ph sw-d/filepath ph filepath">board.dts</span> 文件中，显示引擎、显示接口、panel、fb0 通过 port 结点进行关联，其中 fb0
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为主设备。</p>
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<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="#display_component_architecture__section_p4d_fck_ndc" data-tocid="display_component_architecture__section_p4d_fck_ndc">源码说明</a></div></li><li class="section-item"><div class="section-title"><a href="#display_component_architecture__section_ycq_4zf_d1c" data-tocid="display_component_architecture__section_ycq_4zf_d1c">fbdev 框架</a></div></li><li class="section-item"><div class="section-title"><a href="#display_component_architecture__section_zcq_4zf_d1c" data-tocid="display_component_architecture__section_zcq_4zf_d1c">Componet 框架</a></div></li></ul></div>
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