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<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 本模块源代码在内核目录 linux-5.10/drivers/video/artinchip/disp 下，目录结构如下： ├── aic_com.h // 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 ├── aic_fb.c // 对接 fbdev 框架，并进行扩展 ├── aic_de.c // 显示引擎驱动 ├── aic_dsi.c // mipi-dsi ..."/><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="concept"/><meta name="DC.creator" content="yan.wang"/><meta name="DC.date.created" content="2024-01-18"/><meta name="DC.date.modified" content="2024-11-28"/><meta name="DC.format" content="HTML5"/><meta name="DC.identifier" content="display_component_architecture"/><meta name="DC.language" content="zh-CN"/><title>源码和框架说明</title><!-- Build number 2023110923. --><meta name="wh-path2root" content="../../../"/><meta name="wh-toc-id" content=""/><meta name="wh-source-relpath" content="topics/sdk/display/display_sourcecode_and_arch.dita"/><meta name="wh-out-relpath" content="topics/sdk/display/display_sourcecode_and_arch.html"/>
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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"><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/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><div class="date inPage">28 Nov 2024</div><div style="color: gray;">
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Read time: 1 minute(s)
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</div><div class="- topic/body concept/conbody body conbody"><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="d156723e28__20250121171615">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">├── 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>
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├── aic_de.c <em class="hl-comment">// 显示引擎驱动</em>
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├── 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>
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├── 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></pre></div>
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<div class="- topic/p p" data-ofbid="d156723e36__20250121171615">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"><li class="- topic/li li" data-ofbid="d156723e39__20250121171615"><span class="+ topic/ph sw-d/filepath ph filepath">/Documentation/devicetree/bindings/display/</span></li><li class="- topic/li li" data-ofbid="d156723e42__20250121171615"><span class="+ topic/ph sw-d/filepath ph filepath">/Documentation/devicetree/bindings/display/panel/</span></li></ul></div>
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</section><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>
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<p class="- topic/p p" data-ofbid="d156723e51__20250121171615">ArtInChip 平台的显示模块驱动基于 fbdev 框架。</p>
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<p class="- topic/p p" data-ofbid="d156723e54__20250121171615">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><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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<p class="- topic/p p" data-ofbid="d156723e66__20250121171615">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="d156723e71__20250121171615">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
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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="d156723e74__20250121171615">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>
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<p class="- topic/p p" data-ofbid="d156723e77__20250121171615">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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