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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/i2s/i2s_interface.dita">Edit online</a></span><h1 class="- topic/title title topictitle1" id="ariaid-title1">接口设计</h1>
|
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<div class="date inPage">15 Jan 2024</div><div style="color: gray;">
|
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Read time: 2 minute(s)
|
||
</div>
|
||
<div class="- topic/body concept/conbody body conbody">
|
||
|
||
<div class="table-container"><table class="- topic/table table frame-all" id="i2s_interface_design__table_g4x_sh3_d1c" data-ofbid="i2s_interface_design__table_g4x_sh3_d1c" 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">aic_i2s_set_sysclk</span></caption><colgroup><col style="width:50%"/><col style="width:50%"/></colgroup><thead class="- topic/thead thead">
|
||
<tr class="- topic/row">
|
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<th class="- topic/entry entry colsep-1 rowsep-1" id="i2s_interface_design__table_g4x_sh3_d1c__entry__1">函数原型</th>
|
||
<th class="- topic/entry entry colsep-0 rowsep-1" id="i2s_interface_design__table_g4x_sh3_d1c__entry__2">static int aic_i2s_set_sysclk(struct snd_soc_dai *dai, int
|
||
clk_id, unsigned int freq, int dir)</th>
|
||
</tr>
|
||
</thead><tbody class="- topic/tbody tbody">
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="i2s_interface_design__table_g4x_sh3_d1c__entry__1">功能说明</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="i2s_interface_design__table_g4x_sh3_d1c__entry__2">设置 S 模块输出的 mclk 时钟频率</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="i2s_interface_design__table_g4x_sh3_d1c__entry__1">参数定义</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="i2s_interface_design__table_g4x_sh3_d1c__entry__2">dai：指向 dai 的指针 | clk_id：要设置的时钟 id | freq：设置的时钟频率 | dir：
|
||
unused</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="i2s_interface_design__table_g4x_sh3_d1c__entry__1">返回值</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="i2s_interface_design__table_g4x_sh3_d1c__entry__2">0：执行成功 | -EINVAL：参数非法</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-0" headers="i2s_interface_design__table_g4x_sh3_d1c__entry__1">注意事项</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-0" headers="i2s_interface_design__table_g4x_sh3_d1c__entry__2">-</td>
|
||
</tr>
|
||
</tbody></table></div>
|
||
<div class="table-container"><table class="- topic/table table frame-all" id="i2s_interface_design__table_h4x_sh3_d1c" data-ofbid="i2s_interface_design__table_h4x_sh3_d1c" 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">aic_i2s_set_bclk_ratio</span></caption><colgroup><col style="width:50%"/><col style="width:50%"/></colgroup><thead class="- topic/thead thead">
|
||
<tr class="- topic/row">
|
||
<th class="- topic/entry entry colsep-1 rowsep-1" id="i2s_interface_design__table_h4x_sh3_d1c__entry__1">函数原型</th>
|
||
<th class="- topic/entry entry colsep-0 rowsep-1" id="i2s_interface_design__table_h4x_sh3_d1c__entry__2">static int aic_i2s_set_bclk_ratio(struct snd_soc_dai *dai,
|
||
unsigned int ratio)</th>
|
||
</tr>
|
||
</thead><tbody class="- topic/tbody tbody">
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="i2s_interface_design__table_h4x_sh3_d1c__entry__1">功能说明</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="i2s_interface_design__table_h4x_sh3_d1c__entry__2">设置 S 模块 LRCK 与 BCLK 时钟频率的比率</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="i2s_interface_design__table_h4x_sh3_d1c__entry__1">参数定义</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="i2s_interface_design__table_h4x_sh3_d1c__entry__2">dai：指向 dai 的指针 | ratio：需要设置的比率</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="i2s_interface_design__table_h4x_sh3_d1c__entry__1">返回值</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="i2s_interface_design__table_h4x_sh3_d1c__entry__2">0：执行成功 | -EINVAL：参数非法</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-0" headers="i2s_interface_design__table_h4x_sh3_d1c__entry__1">注意事项</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-0" headers="i2s_interface_design__table_h4x_sh3_d1c__entry__2">-</td>
|
||
</tr>
|
||
</tbody></table></div>
|
||
<div class="table-container"><table class="- topic/table table frame-all" id="i2s_interface_design__table_i4x_sh3_d1c" data-ofbid="i2s_interface_design__table_i4x_sh3_d1c" 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">aic_i2s_set_fmt</span></caption><colgroup><col style="width:50%"/><col style="width:50%"/></colgroup><thead class="- topic/thead thead">
|
||
<tr class="- topic/row">
|
||
<th class="- topic/entry entry colsep-1 rowsep-1" id="i2s_interface_design__table_i4x_sh3_d1c__entry__1">函数原型</th>
|
||
<th class="- topic/entry entry colsep-0 rowsep-1" id="i2s_interface_design__table_i4x_sh3_d1c__entry__2">static int aic_i2s_set_fmt(struct snd_soc_dai *dai, unsigned int
|
||
fmt)</th>
|
||
</tr>
|
||
</thead><tbody class="- topic/tbody tbody">
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="i2s_interface_design__table_i4x_sh3_d1c__entry__1">功能说明</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="i2s_interface_design__table_i4x_sh3_d1c__entry__2">设置 S 模块的格式</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="i2s_interface_design__table_i4x_sh3_d1c__entry__1">参数定义</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="i2s_interface_design__table_i4x_sh3_d1c__entry__2">dai：指向 dai 的指针 | fmt：需要设置的格式</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="i2s_interface_design__table_i4x_sh3_d1c__entry__1">返回值</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="i2s_interface_design__table_i4x_sh3_d1c__entry__2">0：执行成功 | -EINVAL：参数非法</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-0" headers="i2s_interface_design__table_i4x_sh3_d1c__entry__1">注意事项</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-0" headers="i2s_interface_design__table_i4x_sh3_d1c__entry__2">通过该函数可以设置的格式有： | 1. I2S 的主从模式 | 2. BCLK 和 LRCK 的极性 | 3.
|
||
I2S 的数据格式</td>
|
||
</tr>
|
||
</tbody></table></div>
|
||
<div class="table-container"><table class="- topic/table table frame-all" id="i2s_interface_design__table_j4x_sh3_d1c" data-ofbid="i2s_interface_design__table_j4x_sh3_d1c" 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">aic_i2s_set_tdm_slot</span></caption><colgroup><col style="width:50%"/><col style="width:50%"/></colgroup><thead class="- topic/thead thead">
|
||
<tr class="- topic/row">
|
||
<th class="- topic/entry entry colsep-1 rowsep-1" id="i2s_interface_design__table_j4x_sh3_d1c__entry__1">函数原型</th>
|
||
<th class="- topic/entry entry colsep-0 rowsep-1" id="i2s_interface_design__table_j4x_sh3_d1c__entry__2">static int aic_i2s_set_tdm_slot(struct snd_soc_dai *dai,unsigned
|
||
int tx_mask, unsigned int rx_mask,int slots, int slot_width)</th>
|
||
</tr>
|
||
</thead><tbody class="- topic/tbody tbody">
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="i2s_interface_design__table_j4x_sh3_d1c__entry__1">功能说明</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="i2s_interface_design__table_j4x_sh3_d1c__entry__2">设置 S 模块 TDM 模式下的通道个数和宽度</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="i2s_interface_design__table_j4x_sh3_d1c__entry__1">参数定义</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="i2s_interface_design__table_j4x_sh3_d1c__entry__2">dai：指向 dai 的指针 | tx_mask：tx slot 的 mask | rx_mask：rx slot 的 mask |
|
||
slots：设置的通道个数 | slot_width：设置的通道宽度</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="i2s_interface_design__table_j4x_sh3_d1c__entry__1">返回值</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="i2s_interface_design__table_j4x_sh3_d1c__entry__2">0：执行成功 | -EINVAL：参数非法</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-0" headers="i2s_interface_design__table_j4x_sh3_d1c__entry__1">注意事项</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-0" headers="i2s_interface_design__table_j4x_sh3_d1c__entry__2">-</td>
|
||
</tr>
|
||
</tbody></table></div>
|
||
<div class="table-container"><table class="- topic/table table frame-all" id="i2s_interface_design__table_k4x_sh3_d1c" data-ofbid="i2s_interface_design__table_k4x_sh3_d1c" 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"> 5</span><span class="table--title-label-punctuation">. </span></span><span class="table--title">aic_i2s_hw_params</span></caption><colgroup><col style="width:50%"/><col style="width:50%"/></colgroup><thead class="- topic/thead thead">
|
||
<tr class="- topic/row">
|
||
<th class="- topic/entry entry colsep-1 rowsep-1" id="i2s_interface_design__table_k4x_sh3_d1c__entry__1">函数原型</th>
|
||
<th class="- topic/entry entry colsep-0 rowsep-1" id="i2s_interface_design__table_k4x_sh3_d1c__entry__2">static int aic_i2s_hw_params(struct snd_pcm_substream *substream,
|
||
struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)</th>
|
||
</tr>
|
||
</thead><tbody class="- topic/tbody tbody">
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="i2s_interface_design__table_k4x_sh3_d1c__entry__1">功能说明</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="i2s_interface_design__table_k4x_sh3_d1c__entry__2">设置 S 模块硬件参数</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="i2s_interface_design__table_k4x_sh3_d1c__entry__1">参数定义</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="i2s_interface_design__table_k4x_sh3_d1c__entry__2">substream：指向 playback 或 capture 的 substream | params：指向硬件参数指针 |
|
||
dai：指向 dai 的指针</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="i2s_interface_design__table_k4x_sh3_d1c__entry__1">返回值</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="i2s_interface_design__table_k4x_sh3_d1c__entry__2">0：执行成功 | -EINVAL：参数非法</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-0" headers="i2s_interface_design__table_k4x_sh3_d1c__entry__1">注意事项</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-0" headers="i2s_interface_design__table_k4x_sh3_d1c__entry__2">通过该函数，可以设置采样精度，帧率，以及时钟等参数</td>
|
||
</tr>
|
||
</tbody></table></div>
|
||
<div class="table-container"><table class="- topic/table table frame-all" id="i2s_interface_design__table_l4x_sh3_d1c" data-ofbid="i2s_interface_design__table_l4x_sh3_d1c" 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"> 6</span><span class="table--title-label-punctuation">. </span></span><span class="table--title">aic_i2s_trigger</span></caption><colgroup><col style="width:50%"/><col style="width:50%"/></colgroup><thead class="- topic/thead thead">
|
||
<tr class="- topic/row">
|
||
<th class="- topic/entry entry colsep-1 rowsep-1" id="i2s_interface_design__table_l4x_sh3_d1c__entry__1">函数原型</th>
|
||
<th class="- topic/entry entry colsep-0 rowsep-1" id="i2s_interface_design__table_l4x_sh3_d1c__entry__2">static int aic_i2s_trigger(struct snd_pcm_substream *substream,
|
||
int cmd, struct snd_soc_dai *dai)</th>
|
||
</tr>
|
||
</thead><tbody class="- topic/tbody tbody">
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="i2s_interface_design__table_l4x_sh3_d1c__entry__1">功能说明</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="i2s_interface_design__table_l4x_sh3_d1c__entry__2">I2S 的触发函数</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="i2s_interface_design__table_l4x_sh3_d1c__entry__1">参数定义</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="i2s_interface_design__table_l4x_sh3_d1c__entry__2">substream：指向 playback 或 capture 的 substream | cmd：触发的命令 |
|
||
dai：指向 dai 的指针</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="i2s_interface_design__table_l4x_sh3_d1c__entry__1">返回值</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="i2s_interface_design__table_l4x_sh3_d1c__entry__2">0：执行成功 | -EINVAL：参数非法</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-0" headers="i2s_interface_design__table_l4x_sh3_d1c__entry__1">注意事项</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-0" headers="i2s_interface_design__table_l4x_sh3_d1c__entry__2">通过该函数，可以开始或停止音频的播放或录音</td>
|
||
</tr>
|
||
</tbody></table></div>
|
||
|
||
|
||
|
||
</div>
|
||
</article></main></div>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
</div>
|
||
|
||
</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: 2025-01-23
|
||
</div>
|
||
</div>
|
||
</div>
|
||
</footer>
|
||
|
||
<button id="go2top" class="d-print-none" title="返回顶部">
|
||
<span class="oxy-icon oxy-icon-up"></span>
|
||
</button>
|
||
|
||
<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> |