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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/tsensor/tsensor-interface-design-lite.dita">Edit online</a></span><h1 class="- topic/title title topictitle1" id="ariaid-title1">接口设计</h1><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><div class="- topic/body concept/conbody body conbody"><section class="- topic/section section" id="tsensor_interface_design_luban_lite__driver" data-ofbid="tsensor_interface_design_luban_lite__driver"><h2 class="- topic/title title sectiontitle">Driver 层接口设计</h2>
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<p class="- topic/p p" data-ofbid="d214347e31__20250121171641">以下接口是 TSensor 设备驱动框架的标准接口。</p>
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<div class="table-container"><table class="- topic/table table frame-all" id="tsensor_interface_design_luban_lite__table_agk_ywh_bdc" data-ofbid="tsensor_interface_design_luban_lite__table_agk_ywh_bdc" 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_tsen_fetch</span></caption><colgroup><col style="width:16.666666666666664%"/><col style="width:83.33333333333334%"/></colgroup><thead class="- topic/thead thead"><tr class="- topic/row"><th class="- topic/entry entry colsep-1 rowsep-1" id="tsensor_interface_design_luban_lite__table_agk_ywh_bdc__entry__1">函数原型</th><th class="- topic/entry entry colsep-0 rowsep-1" id="tsensor_interface_design_luban_lite__table_agk_ywh_bdc__entry__2">rt_size_t aic_tsen_fetch(struct rt_sensor_device *sensor, void
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*buf, rt_size_t len)</th></tr></thead><tbody class="- topic/tbody tbody"><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="tsensor_interface_design_luban_lite__table_agk_ywh_bdc__entry__1">功能说明</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="tsensor_interface_design_luban_lite__table_agk_ywh_bdc__entry__2">读取 TSensor 温度数据</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="tsensor_interface_design_luban_lite__table_agk_ywh_bdc__entry__1">参数定义</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="tsensor_interface_design_luban_lite__table_agk_ywh_bdc__entry__2">
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<div class="- topic/div div">
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<div class="- topic/div div">sensor - 指向 sensor 设备</div>
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<div class="- topic/div div">buf - 用来保存读取到的温度，是 struct rt_sensor_data 类型的数据结构</div>
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<div class="- topic/div div">len - buf 的长度</div>
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</div>
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</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="tsensor_interface_design_luban_lite__table_agk_ywh_bdc__entry__1">返回值</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="tsensor_interface_design_luban_lite__table_agk_ywh_bdc__entry__2">1，成功； <0，失败</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-0" headers="tsensor_interface_design_luban_lite__table_agk_ywh_bdc__entry__1">注意事项</td><td class="- topic/entry entry colsep-0 rowsep-0" headers="tsensor_interface_design_luban_lite__table_agk_ywh_bdc__entry__2">目前仅支持读取 CPU 位置处的 TSensor</td></tr></tbody></table></div>
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<div class="table-container"><table class="- topic/table table frame-all" id="tsensor_interface_design_luban_lite__table_bgk_ywh_bdc" data-ofbid="tsensor_interface_design_luban_lite__table_bgk_ywh_bdc" 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_tsen_control</span></caption><colgroup><col style="width:16.666666666666664%"/><col style="width:83.33333333333334%"/></colgroup><thead class="- topic/thead thead"><tr class="- topic/row"><th class="- topic/entry entry colsep-1 rowsep-1" id="tsensor_interface_design_luban_lite__table_bgk_ywh_bdc__entry__1">函数原型</th><th class="- topic/entry entry colsep-0 rowsep-1" id="tsensor_interface_design_luban_lite__table_bgk_ywh_bdc__entry__2">rt_err_t aic_tsen_control(struct rt_sensor_device *sensor, int
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cmd, void *args)</th></tr></thead><tbody class="- topic/tbody tbody"><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="tsensor_interface_design_luban_lite__table_bgk_ywh_bdc__entry__1">功能说明</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="tsensor_interface_design_luban_lite__table_bgk_ywh_bdc__entry__2">TSensor 驱动的 ioctl 接口</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="tsensor_interface_design_luban_lite__table_bgk_ywh_bdc__entry__1">参数定义</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="tsensor_interface_design_luban_lite__table_bgk_ywh_bdc__entry__2">
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<div class="- topic/div div">
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<div class="- topic/div div">sensor - 指向 sensor 设备</div>
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<div class="- topic/div div">cmd - ioctl 命令码</div>
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<div class="- topic/div div">args - ioctl 命令相应的参数</div>
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</div>
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</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="tsensor_interface_design_luban_lite__table_bgk_ywh_bdc__entry__1">返回值</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="tsensor_interface_design_luban_lite__table_bgk_ywh_bdc__entry__2">-1，失败</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-0" headers="tsensor_interface_design_luban_lite__table_bgk_ywh_bdc__entry__1">注意事项</td><td class="- topic/entry entry colsep-0 rowsep-0" headers="tsensor_interface_design_luban_lite__table_bgk_ywh_bdc__entry__2">目前暂未实现此接口中的 ioctl 命令，所以统一返回 -1。 不影响正常读数据功能</td></tr></tbody></table></div>
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</section><section class="- topic/section section" id="tsensor_interface_design_luban_lite__hal" data-ofbid="tsensor_interface_design_luban_lite__hal"><h2 class="- topic/title title sectiontitle">HAL 层接口设计</h2>
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<div class="- topic/p p" data-ofbid="d214347e131__20250121171641">HAL 层的函数接口声明存放在 hal_tsen.h
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中，主要接口有：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="tsensor_interface_design_luban_lite__codeblock_lml_crg_ddc" data-ofbid="tsensor_interface_design_luban_lite__codeblock_lml_crg_ddc"><strong class="hl-keyword">void</strong> hal_tsen_enable(<strong class="hl-keyword">int</strong> enable);
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<strong class="hl-keyword">void</strong> hal_tsen_ch_enable(u32 ch, <strong class="hl-keyword">int</strong> enable);
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<strong class="hl-keyword">int</strong> hal_tsen_ch_init(<strong class="hl-keyword">struct</strong> aic_tsen_ch *chan, u32 pclk);
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<strong class="hl-keyword">int</strong> hal_tsen_get_temp(<strong class="hl-keyword">struct</strong> aic_tsen_ch *chan, s32 *val);
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s32 hal_tsen_data2temp(<strong class="hl-keyword">struct</strong> aic_tsen_ch *chan);
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u16 hal_tsen_temp2data(<strong class="hl-keyword">struct</strong> aic_tsen_ch *chan, s32 temp);
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<strong class="hl-keyword">void</strong> hal_tsen_status_show(<strong class="hl-keyword">struct</strong> aic_tsen_ch *chan);
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irqreturn_t hal_tsen_irq_handle(<strong class="hl-keyword">int</strong> irq, <strong class="hl-keyword">void</strong> *arg);</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="#tsensor_interface_design_luban_lite__driver" data-tocid="tsensor_interface_design_luban_lite__driver">Driver 层接口设计</a></div></li><li class="section-item"><div class="section-title"><a href="#tsensor_interface_design_luban_lite__hal" data-tocid="tsensor_interface_design_luban_lite__hal">HAL 层接口设计</a></div></li></ul></div>
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