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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/audio_codec/audio-codec-configuration.dita">Edit online</a></span><h1 class="- topic/title title topictitle1" id="ariaid-title1">Audio Codec 配置</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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<div class="- topic/p p" data-ofbid="d187879e33__20250123155220">Audio Codec 包括以下配置内容：<ol class="- topic/ol ol" id="audio_codec_configuration__ol_f3g_tym_d1c" data-ofbid="audio_codec_configuration__ol_f3g_tym_d1c">
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<li class="- topic/li li" data-ofbid="d187879e37__20250123155220">内核配置<div class="- topic/p p" data-ofbid="d187879e39__20250123155220">按照 ALSA 的框架设计，AudioCodec 的数据传输使用 DMA 方式，需要 engine 的支持，所以在 menuconfig
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中需要打开 DMA-engine 的驱动支持。<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="audio_codec_configuration__codeblock_yfc_5ym_d1c" data-ofbid="audio_codec_configuration__codeblock_yfc_5ym_d1c"><code>Device Drivers--->
|
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[*] DMA Engine support--->
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<*> ArtInChip SoCs DMA support</code></pre></div><div class="- topic/p p" data-ofbid="d187879e43__20250123155220">在 menuconfig 中打开 ALSA 框架的支持，使能 AIC 的 AudioCodec 驱动<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="audio_codec_configuration__codeblock_ody_xym_d1c" data-ofbid="audio_codec_configuration__codeblock_ody_xym_d1c"><code>Device Drivers--->
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<*> Sound card support--->
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<*> Advanced Linux Sound Architecture--->
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<*> ALSA <strong class="hl-keyword">for</strong> SoC audio support--->
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<*> ArtInChip CODEC Support</code></pre></div></li>
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<li class="- topic/li li" data-ofbid="d187879e48__20250123155220">DTS 配置<p class="- topic/p p" data-ofbid="d187879e50__20250123155220">d211
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配置</p><pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="audio_codec_configuration__codeblock_nd3_wym_d1c" data-ofbid="audio_codec_configuration__codeblock_nd3_wym_d1c"><code>codec: codec@<span class="hl-number">18610000</span> {
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#sound-dai-cells = <<span class="hl-number">0</span>>;
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compatible = <span class="hl-string">"artinchip,aic-codec-v1.0"</span>;
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reg = <<span class="hl-number">0x18610000</span> <span class="hl-number">0x400</span>>;
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interrupts = <GIC_SPI <span class="hl-number">22</span> IRQ_TYPE_LEVEL_HIGH>;
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clocks = <&cmu CLK_CODEC>;
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resets = <&rst RESET_CODEC>;
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dmas = <&dma DMA_CODEC>, <&dma DMA_CODEC>;
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dma-names = <span class="hl-string">"rx"</span>, <span class="hl-string">"tx"</span>;
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};
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codec-analog {
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#sound-dai-cells = <<span class="hl-number">0</span>>;
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compatible = <span class="hl-string">"artinchip,codec-analog"</span>;
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dmas = <&dma <span class="hl-number">15</span>>, <&dma DMA_CODEC>;
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dma-names = <span class="hl-string">"rx"</span>, <span class="hl-string">"tx"</span>;
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};</code></pre><p class="- topic/p p" data-ofbid="d187879e54__20250123155220"><span class="+ topic/ph sw-d/filepath ph filepath">xxx/board.dts</span>
|
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中的配置</p><pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="audio_codec_configuration__codeblock_bc4_wym_d1c" data-ofbid="audio_codec_configuration__codeblock_bc4_wym_d1c"><code>&codec {
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pinctrl-names = <span class="hl-string">"default"</span>;
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pinctrl-<span class="hl-number">0</span> = <&amic_pins>, <&dmic_pins_a>, <&spk_pins_b>;
|
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pa-gpios = <&gpio_f <span class="hl-number">13</span> GPIO_ACTIVE_LOW>;
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status = <span class="hl-string">"okay"</span>;
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||
};</code></pre><p class="- topic/p p" data-ofbid="d187879e60__20250123155220">根据实际的板级配置，设置 pinctrl-0 的值。</p></li>
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