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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/gpai/gpai_interface.dita">Edit online</a></span><h1 class="- topic/title title topictitle1" id="ariaid-title1">接口设计</h1><div class="date inPage">5 Jul 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="gpai_interface_design__section_hw3_nyk_g1c" data-ofbid="gpai_interface_design__section_hw3_nyk_g1c"><h2 class="- topic/title title sectiontitle">Driver 层接口设计</h2>
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<div class="- topic/p p" data-ofbid="d244910e28__20250121171700">以下接口是 GPAI 设备驱动框架的标准接口。<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="gpai_interface_design__codeblock_fxn_ryk_g1c" data-ofbid="gpai_interface_design__codeblock_fxn_ryk_g1c"><strong class="hl-keyword">struct</strong> rt_adc_ops
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{
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rt_err_t (*enabled)(<strong class="hl-keyword">struct</strong> rt_adc_device *device, rt_uint32_t channel, rt_bool_t enabled);
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rt_err_t (*convert)(<strong class="hl-keyword">struct</strong> rt_adc_device *device, rt_uint32_t channel, rt_uint32_t *value);
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rt_uint8_t (*get_resolution)(<strong class="hl-keyword">struct</strong> rt_adc_device *device);
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rt_int16_t (*get_vref) (<strong class="hl-keyword">struct</strong> rt_adc_device *device);
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};</pre></div>
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<p class="- topic/p p" data-ofbid="d244910e33__20250121171700">其中的 get_vref() 暂未支持。</p>
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<div class="table-container"><table class="- topic/table table frame-all" id="gpai_interface_design__table_jw3_nyk_g1c" data-ofbid="gpai_interface_design__table_jw3_nyk_g1c" 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">drv_gpai_enabled</span></caption><colgroup><col style="width:25%"/><col style="width:75%"/></colgroup><thead class="- topic/thead thead"><tr class="- topic/row"><th class="- topic/entry entry colsep-1 rowsep-1" id="gpai_interface_design__table_jw3_nyk_g1c__entry__1">函数原型</th><th class="- topic/entry entry colsep-0 rowsep-1" id="gpai_interface_design__table_jw3_nyk_g1c__entry__2">rt_err_t drv_gpai_enabled(struct rt_adc_device *dev, rt_uint32_t
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ch, rt_bool_t enabled)</th></tr></thead><tbody class="- topic/tbody tbody"><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="gpai_interface_design__table_jw3_nyk_g1c__entry__1">功能说明</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="gpai_interface_design__table_jw3_nyk_g1c__entry__2">使能一个 ADC 通道</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="gpai_interface_design__table_jw3_nyk_g1c__entry__1">参数定义</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="gpai_interface_design__table_jw3_nyk_g1c__entry__2">
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<ul class="- topic/ul ul" id="gpai_interface_design__ul_wjr_ql4_ybc" data-ofbid="gpai_interface_design__ul_wjr_ql4_ybc"><li class="- topic/li li" data-ofbid="d244910e60__20250121171700">dev - 指向 ADC 设备 </li><li class="- topic/li li" data-ofbid="d244910e62__20250121171700">ch - 指定 ADC 通道的通道编号 </li><li class="- topic/li li" data-ofbid="d244910e64__20250121171700">enable - 使能</li></ul>
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</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="gpai_interface_design__table_jw3_nyk_g1c__entry__1">返回值</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="gpai_interface_design__table_jw3_nyk_g1c__entry__2">0，成功。 < 0，失败</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-0" headers="gpai_interface_design__table_jw3_nyk_g1c__entry__1">注意事项</td><td class="- topic/entry entry colsep-0 rowsep-0" headers="gpai_interface_design__table_jw3_nyk_g1c__entry__2">-</td></tr></tbody></table></div>
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<div class="table-container"><table class="- topic/table table frame-all" id="gpai_interface_design__table_kw3_nyk_g1c" data-ofbid="gpai_interface_design__table_kw3_nyk_g1c" 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">drv_gpai_convert</span></caption><colgroup><col style="width:25%"/><col style="width:75%"/></colgroup><thead class="- topic/thead thead"><tr class="- topic/row"><th class="- topic/entry entry colsep-1 rowsep-1" id="gpai_interface_design__table_kw3_nyk_g1c__entry__1">函数原型</th><th class="- topic/entry entry colsep-0 rowsep-1" id="gpai_interface_design__table_kw3_nyk_g1c__entry__2">rt_err_t drv_gpai_convert(struct rt_adc_device *dev, rt_uint32_t
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ch, rt_uint32_t *value)</th></tr></thead><tbody class="- topic/tbody tbody"><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="gpai_interface_design__table_kw3_nyk_g1c__entry__1">功能说明</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="gpai_interface_design__table_kw3_nyk_g1c__entry__2">读取一个 ADC 通道的当前数据</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="gpai_interface_design__table_kw3_nyk_g1c__entry__1">参数定义</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="gpai_interface_design__table_kw3_nyk_g1c__entry__2">
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<ul class="- topic/ul ul" id="gpai_interface_design__ul_glx_rl4_ybc" data-ofbid="gpai_interface_design__ul_glx_rl4_ybc"><li class="- topic/li li" data-ofbid="d244910e102__20250121171700">dev - 指向 ADC 设备 </li><li class="- topic/li li" data-ofbid="d244910e104__20250121171700">ch - 指定 ADC 通道的通道编号 </li><li class="- topic/li li" data-ofbid="d244910e106__20250121171700">value - 用于保存返回的 ADC 数据</li></ul>
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</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="gpai_interface_design__table_kw3_nyk_g1c__entry__1">返回值</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="gpai_interface_design__table_kw3_nyk_g1c__entry__2">0，成功。 < 0，失败</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-0" headers="gpai_interface_design__table_kw3_nyk_g1c__entry__1">注意事项</td><td class="- topic/entry entry colsep-0 rowsep-0" headers="gpai_interface_design__table_kw3_nyk_g1c__entry__2">-</td></tr></tbody></table></div>
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<div class="table-container"><table class="- topic/table table frame-all" id="gpai_interface_design__table_lw3_nyk_g1c" data-ofbid="gpai_interface_design__table_lw3_nyk_g1c" 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">drv_gpai_resolution</span></caption><colgroup><col style="width:25%"/><col style="width:75%"/></colgroup><thead class="- topic/thead thead"><tr class="- topic/row"><th class="- topic/entry entry colsep-1 rowsep-1" id="gpai_interface_design__table_lw3_nyk_g1c__entry__1">函数原型</th><th class="- topic/entry entry colsep-0 rowsep-1" id="gpai_interface_design__table_lw3_nyk_g1c__entry__2">rt_err_t drv_gpai_resolution(struct rt_adc_device *dev)</th></tr></thead><tbody class="- topic/tbody tbody"><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="gpai_interface_design__table_lw3_nyk_g1c__entry__1">功能说明</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="gpai_interface_design__table_lw3_nyk_g1c__entry__2">获取 GPAI 控制器的采样精度</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="gpai_interface_design__table_lw3_nyk_g1c__entry__1">参数定义</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="gpai_interface_design__table_lw3_nyk_g1c__entry__2">dev - 指向 ADC 设备</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="gpai_interface_design__table_lw3_nyk_g1c__entry__1">返回值</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="gpai_interface_design__table_lw3_nyk_g1c__entry__2">12，表示 12bit 的采样精度</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-0" headers="gpai_interface_design__table_lw3_nyk_g1c__entry__1">注意事项</td><td class="- topic/entry entry colsep-0 rowsep-0" headers="gpai_interface_design__table_lw3_nyk_g1c__entry__2">-</td></tr></tbody></table></div>
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</section><section class="- topic/section section" id="gpai_interface_design__section_mw3_nyk_g1c" data-ofbid="gpai_interface_design__section_mw3_nyk_g1c"><h2 class="- topic/title title sectiontitle">HAL 层接口设计</h2>
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<div class="- topic/p p" data-ofbid="d244910e160__20250121171700">HAL 层的函数接口声明存放在 hal_gpai.h
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中，主要接口有：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="gpai_interface_design__codeblock_qxy_nyk_g1c" data-ofbid="gpai_interface_design__codeblock_qxy_nyk_g1c"><strong class="hl-keyword">void</strong> aich_gpai_enable(<strong class="hl-keyword">int</strong> enable);
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<strong class="hl-keyword">void</strong> aich_gpai_ch_enable(u32 ch, <strong class="hl-keyword">int</strong> enable);
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<strong class="hl-keyword">int</strong> aich_gpai_ch_init(<strong class="hl-keyword">struct</strong> aic_gpai_ch *chan, u32 pclk);
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irqreturn_t aich_gpai_isr(<strong class="hl-keyword">int</strong> irq, <strong class="hl-keyword">void</strong> *arg);
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<strong class="hl-keyword">int</strong> aich_gpai_read(<strong class="hl-keyword">struct</strong> aic_gpai_ch *chan, u32 *val, u32 timeout);
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s32 aich_gpai_data2vol(u16 data);
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<strong class="hl-keyword">struct</strong> aic_gpai_ch *hal_gpai_ch_is_valid(u32 ch);
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<strong class="hl-keyword">void</strong> hal_gpai_set_ch_num(u32 num);
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<strong class="hl-keyword">void</strong> aich_gpai_status_show(<strong class="hl-keyword">struct</strong> aic_gpai_ch *chan);</pre></div>
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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="#gpai_interface_design__section_hw3_nyk_g1c" data-tocid="gpai_interface_design__section_hw3_nyk_g1c">Driver 层接口设计</a></div></li><li class="section-item"><div class="section-title"><a href="#gpai_interface_design__section_mw3_nyk_g1c" data-tocid="gpai_interface_design__section_mw3_nyk_g1c">HAL 层接口设计</a></div></li></ul></div>
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