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id="rtc_configuration-d4445e3550-link">RTC 配置</a></div></div></li><li role="treeitem"><div data-tocid="rtc_debug_guide-d4445e3564" class="topicref" data-id="rtc_debug_guide" data-state="leaf"><span role="button" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/rtc/rtc-debug-guide.html" id="rtc_debug_guide-d4445e3564-link">调试指南</a></div></div></li><li role="treeitem"><div data-tocid="rtc_test_guide-d4445e3578" class="topicref" data-id="rtc_test_guide" data-state="leaf"><span role="button" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/rtc/rtc-test-guide.html" id="rtc_test_guide-d4445e3578-link">测试指南</a></div></div></li><li role="treeitem" aria-expanded="true"><div data-tocid="rtc_design_intro-d4445e3592" class="topicref" data-id="rtc_design_intro" data-state="expanded"><span role="button" tabindex="0" aria-labelledby="button-collapse-action rtc_design_intro-d4445e3592-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/rtc/rtc-design-intro.html" id="rtc_design_intro-d4445e3592-link">设计说明</a></div></div><ul role="group" class="navbar-nav nav-list"><li role="treeitem"><div data-tocid="rtc_key_procedures-d4445e3606" class="topicref" data-id="rtc_key_procedures" data-state="leaf"><span role="button" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/rtc/rtc-key-procedure.html" id="rtc_key_procedures-d4445e3606-link">关键流程设计</a></div></div></li><li role="treeitem"><div data-tocid="rtc_data_structure-d4445e3620" class="topicref" data-id="rtc_data_structure" data-state="leaf"><span role="button" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/rtc/rtc-data-structure.html" id="rtc_data_structure-d4445e3620-link">数据结构设计</a></div></div></li><li role="treeitem" class="active"><div data-tocid="rtc_interface_design-d4445e3634" class="topicref" data-id="rtc_interface_design" data-state="leaf"><span role="button" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/rtc/rtc-interface-design.html" id="rtc_interface_design-d4445e3634-link">接口设计</a></div></div></li><li role="treeitem"><div data-tocid="rtc_demo-d4445e3648" class="topicref" data-id="rtc_demo" data-state="leaf"><span role="button" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/rtc/rtc-demo.html" id="rtc_demo-d4445e3648-link">Demo</a></div></div></li></ul></li><li role="treeitem"><div data-tocid="rtc_common_issues-d4445e3662" class="topicref" data-id="rtc_common_issues" data-state="leaf"><span role="button" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/rtc/rtc-common-issues.html" id="rtc_common_issues-d4445e3662-link">常见问题</a></div></div></li></ul></li><li role="treeitem" aria-expanded="false"><div data-tocid="tsensor-d4445e3676" class="topicref" data-id="tsensor" data-state="not-ready"><span role="button" tabindex="0" 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使用指南</a></div></div></li></ul></li><li role="treeitem" aria-expanded="false"><div data-tocid="chapter-memory-d4445e4054" class="topicref" data-id="chapter-memory" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action chapter-memory-d4445e4054-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/chapter-title/chapter-memory-sdk.html" id="chapter-memory-d4445e4054-link">存储</a><div class="wh-tooltip"><p class="shortdesc">SDMC、SPI NAND、SPI NOR 等存储模块的介绍和使用说明。</p></div></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="concept_mcc_32s_nbc-d4445e4438" class="topicref" data-id="concept_mcc_32s_nbc" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action concept_mcc_32s_nbc-d4445e4438-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/chapter-title/chapter-multi-media-sdk.html" id="concept_mcc_32s_nbc-d4445e4438-link">多媒体</a><div class="wh-tooltip"><p class="shortdesc">GE、VE、Display、DVP、MPP、MPP 播放器等多媒体模块的介绍和使用说明。</p></div></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="concept_nww_hzh_pzb-d4445e5947" class="topicref" data-id="concept_nww_hzh_pzb" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action concept_nww_hzh_pzb-d4445e5947-link" class="wh-expand-btn"></span><div class="title"><a 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 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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" title="Edit this document" href="http://172.16.35.88/tasks/jdssno1uvvbf2mltu9kb9v3if05d5gopuakboe8hlud18rma/edit/F:/aicdita/aicdita-cn/topics/sdk/rtc/rtc-interface-design.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;">
|
||
Read time: 5 minute(s)
|
||
</div>
|
||
<div class="- topic/body concept/conbody body conbody">
|
||
<p class="- topic/p p" data-ofbid="d201667e33__20250123155222">以下接口是 Linux RTC 子系统需要的标准接口。</p>
|
||
<section class="- topic/section section" id="rtc_interface_design__section_wck_2ws_c1c" data-ofbid="rtc_interface_design__section_wck_2ws_c1c"><h2 class="- topic/title title sectiontitle">外部接口</h2>
|
||
|
||
<div class="- topic/p p" data-ofbid="d201667e41__20250123155222">Linux
|
||
对用户态提供了一组 RTC 的 ioctl 接口，用户态可以通过设备节点/dev/rtc0 来访问：（详见 include/upai/linux/rtc.h）<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="rtc_interface_design__codeblock_jdf_gws_c1c" data-ofbid="rtc_interface_design__codeblock_jdf_gws_c1c"><code>#<span class="hl-directive">define</span> RTC_AIE_ON _IO(<span class="hl-string">'p'</span>, <span class="hl-number">0x01</span>) <em class="hl-comment">/* Alarm int. enable on */</em>
|
||
#<span class="hl-directive">define</span> RTC_AIE_OFF _IO(<span class="hl-string">'p'</span>, <span class="hl-number">0x02</span>) <em class="hl-comment">/* ... off */</em>
|
||
#<span class="hl-directive">define</span> RTC_UIE_ON _IO(<span class="hl-string">'p'</span>, <span class="hl-number">0x03</span>) <em class="hl-comment">/* Update int. enable on */</em>
|
||
#<span class="hl-directive">define</span> RTC_UIE_OFF _IO(<span class="hl-string">'p'</span>, <span class="hl-number">0x04</span>) <em class="hl-comment">/* ... off */</em>
|
||
#<span class="hl-directive">define</span> RTC_PIE_ON _IO(<span class="hl-string">'p'</span>, <span class="hl-number">0x05</span>) <em class="hl-comment">/* Periodic int. enable on */</em>
|
||
#<span class="hl-directive">define</span> RTC_PIE_OFF _IO(<span class="hl-string">'p'</span>, <span class="hl-number">0x06</span>) <em class="hl-comment">/* ... off */</em>
|
||
#<span class="hl-directive">define</span> RTC_WIE_ON _IO(<span class="hl-string">'p'</span>, <span class="hl-number">0x0f</span>) <em class="hl-comment">/* Watchdog int. enable on */</em>
|
||
#<span class="hl-directive">define</span> RTC_WIE_OFF _IO(<span class="hl-string">'p'</span>, <span class="hl-number">0x10</span>) <em class="hl-comment">/* ... off */</em>
|
||
|
||
#<span class="hl-directive">define</span> RTC_ALM_SET _IOW(<span class="hl-string">'p'</span>, <span class="hl-number">0x07</span>, <strong class="hl-keyword">struct</strong> rtc_time) <em class="hl-comment">/* Set alarm time */</em>
|
||
#<span class="hl-directive">define</span> RTC_ALM_READ _IOR(<span class="hl-string">'p'</span>, <span class="hl-number">0x08</span>, <strong class="hl-keyword">struct</strong> rtc_time) <em class="hl-comment">/* Read alarm time */</em>
|
||
#<span class="hl-directive">define</span> RTC_RD_TIME _IOR(<span class="hl-string">'p'</span>, <span class="hl-number">0x09</span>, <strong class="hl-keyword">struct</strong> rtc_time) <em class="hl-comment">/* Read RTC time */</em>
|
||
#<span class="hl-directive">define</span> RTC_SET_TIME _IOW(<span class="hl-string">'p'</span>, <span class="hl-number">0x0a</span>, <strong class="hl-keyword">struct</strong> rtc_time) <em class="hl-comment">/* Set RTC time */</em>
|
||
#<span class="hl-directive">define</span> RTC_IRQP_READ _IOR(<span class="hl-string">'p'</span>, <span class="hl-number">0x0b</span>, <strong class="hl-keyword">unsigned</strong> <strong class="hl-keyword">long</strong>) <em class="hl-comment">/* Read IRQ rate */</em>
|
||
#<span class="hl-directive">define</span> RTC_IRQP_SET _IOW(<span class="hl-string">'p'</span>, <span class="hl-number">0x0c</span>, <strong class="hl-keyword">unsigned</strong> <strong class="hl-keyword">long</strong>) <em class="hl-comment">/* Set IRQ rate */</em>
|
||
#<span class="hl-directive">define</span> RTC_EPOCH_READ _IOR(<span class="hl-string">'p'</span>, <span class="hl-number">0x0d</span>, <strong class="hl-keyword">unsigned</strong> <strong class="hl-keyword">long</strong>) <em class="hl-comment">/* Read epoch */</em>
|
||
#<span class="hl-directive">define</span> RTC_EPOCH_SET _IOW(<span class="hl-string">'p'</span>, <span class="hl-number">0x0e</span>, <strong class="hl-keyword">unsigned</strong> <strong class="hl-keyword">long</strong>) <em class="hl-comment">/* Set epoch */</em>
|
||
|
||
#<span class="hl-directive">define</span> RTC_WKALM_SET _IOW(<span class="hl-string">'p'</span>, <span class="hl-number">0x0f</span>, <strong class="hl-keyword">struct</strong> rtc_wkalrm)<em class="hl-comment">/* Set wakeup alarm*/</em>
|
||
#<span class="hl-directive">define</span> RTC_WKALM_RD _IOR(<span class="hl-string">'p'</span>, <span class="hl-number">0x10</span>, <strong class="hl-keyword">struct</strong> rtc_wkalrm)<em class="hl-comment">/* Get wakeup alarm*/</em>
|
||
|
||
#<span class="hl-directive">define</span> RTC_PLL_GET _IOR(<span class="hl-string">'p'</span>, <span class="hl-number">0x11</span>, <strong class="hl-keyword">struct</strong> rtc_pll_info) <em class="hl-comment">/* Get PLL correction */</em>
|
||
#<span class="hl-directive">define</span> RTC_PLL_SET _IOW(<span class="hl-string">'p'</span>, <span class="hl-number">0x12</span>, <strong class="hl-keyword">struct</strong> rtc_pll_info) <em class="hl-comment">/* Set PLL correction */</em></code></pre></div>
|
||
<p class="- topic/p p" data-ofbid="d201667e46__20250123155222"><a xml:lang="zh-CN" lang="zh-CN" class="- topic/xref xref" href="rtc-demo.html">Demo</a> 就是调用的这些接口完成 alarm 配置，以及 hwclock 工具也是调用上述接口。</p>
|
||
</section>
|
||
<section class="- topic/section section" id="rtc_interface_design__section_q4p_kws_c1c" data-ofbid="rtc_interface_design__section_q4p_kws_c1c"><h2 class="- topic/title title sectiontitle">RTC 相关的内部接口</h2>
|
||
|
||
<div class="table-container"><table class="- topic/table table frame-all" id="rtc_interface_design__table_srz_jws_c1c" data-ofbid="rtc_interface_design__table_srz_jws_c1c" 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_rtc_read_time</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="rtc_interface_design__table_srz_jws_c1c__entry__1">函数原型</th>
|
||
<th class="- topic/entry entry colsep-0 rowsep-1" id="rtc_interface_design__table_srz_jws_c1c__entry__2">static int aic_rtc_read_time(struct device *dev, struct rtc_time
|
||
*tm)</th>
|
||
</tr>
|
||
</thead><tbody class="- topic/tbody tbody">
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="rtc_interface_design__table_srz_jws_c1c__entry__1">功能说明</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="rtc_interface_design__table_srz_jws_c1c__entry__2">读取当前的 RTC 时间</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="rtc_interface_design__table_srz_jws_c1c__entry__1">参数定义</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="rtc_interface_design__table_srz_jws_c1c__entry__2">
|
||
<ul class="- topic/ul ul" id="rtc_interface_design__ul_sk2_tgj_bcc" data-ofbid="rtc_interface_design__ul_sk2_tgj_bcc">
|
||
<li class="- topic/li li" data-ofbid="d201667e101__20250123155222">dev - 指向 RTC 设备的指针 </li>
|
||
<li class="- topic/li li" data-ofbid="d201667e104__20250123155222">tm - 用于存放获取到的时间信息</li>
|
||
</ul>
|
||
</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="rtc_interface_design__table_srz_jws_c1c__entry__1">返回值</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="rtc_interface_design__table_srz_jws_c1c__entry__2">0，成功</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-0" headers="rtc_interface_design__table_srz_jws_c1c__entry__1">注意事项</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-0" headers="rtc_interface_design__table_srz_jws_c1c__entry__2">-</td>
|
||
</tr>
|
||
</tbody></table></div>
|
||
<div class="table-container"><table class="- topic/table table frame-all" id="rtc_interface_design__table_trz_jws_c1c" data-ofbid="rtc_interface_design__table_trz_jws_c1c" 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_rtc_set_time</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="rtc_interface_design__table_trz_jws_c1c__entry__1">函数原型</th>
|
||
<th class="- topic/entry entry colsep-0 rowsep-1" id="rtc_interface_design__table_trz_jws_c1c__entry__2">static int aic_rtc_set_time(struct device *dev, struct rtc_time
|
||
*tm)</th>
|
||
</tr>
|
||
</thead><tbody class="- topic/tbody tbody">
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="rtc_interface_design__table_trz_jws_c1c__entry__1">功能说明</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="rtc_interface_design__table_trz_jws_c1c__entry__2">设置 RTC 时间</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="rtc_interface_design__table_trz_jws_c1c__entry__1">参数定义</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="rtc_interface_design__table_trz_jws_c1c__entry__2">
|
||
<ul class="- topic/ul ul" id="rtc_interface_design__ul_b25_tgj_bcc" data-ofbid="rtc_interface_design__ul_b25_tgj_bcc">
|
||
<li class="- topic/li li" data-ofbid="d201667e174__20250123155222">dev - 指向 RTC 设备的指针 </li>
|
||
<li class="- topic/li li" data-ofbid="d201667e177__20250123155222">tm - 需要设置的时间信息</li>
|
||
</ul>
|
||
</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="rtc_interface_design__table_trz_jws_c1c__entry__1">返回值</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="rtc_interface_design__table_trz_jws_c1c__entry__2">0，成功</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-0" headers="rtc_interface_design__table_trz_jws_c1c__entry__1">注意事项</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-0" headers="rtc_interface_design__table_trz_jws_c1c__entry__2">更新 RTC 控制器的秒数，需要先暂停 RTC 计数，设置完秒数，再使能 RTC。</td>
|
||
</tr>
|
||
</tbody></table></div>
|
||
<div class="table-container"><table class="- topic/table table frame-all" id="rtc_interface_design__table_urz_jws_c1c" data-ofbid="rtc_interface_design__table_urz_jws_c1c" 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_rtc_read_alarm</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="rtc_interface_design__table_urz_jws_c1c__entry__1">函数原型</th>
|
||
<th class="- topic/entry entry colsep-0 rowsep-1" id="rtc_interface_design__table_urz_jws_c1c__entry__2">static int aic_rtc_read_alarm(struct device *dev, struct
|
||
rtc_wkalrm *alarm)</th>
|
||
</tr>
|
||
</thead><tbody class="- topic/tbody tbody">
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="rtc_interface_design__table_urz_jws_c1c__entry__1">功能说明</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="rtc_interface_design__table_urz_jws_c1c__entry__2">读取当前的 Alarm 状态信息</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="rtc_interface_design__table_urz_jws_c1c__entry__1">参数定义</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="rtc_interface_design__table_urz_jws_c1c__entry__2">
|
||
<ul class="- topic/ul ul" id="rtc_interface_design__ul_crh_5gj_bcc" data-ofbid="rtc_interface_design__ul_crh_5gj_bcc">
|
||
<li class="- topic/li li" data-ofbid="d201667e247__20250123155222">dev - 指向 RTC 设备的指针 </li>
|
||
<li class="- topic/li li" data-ofbid="d201667e250__20250123155222">alarm - 用于保存读取到的当前 Alarm 信息，包括下一次超时时间和超时状态</li>
|
||
</ul>
|
||
</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="rtc_interface_design__table_urz_jws_c1c__entry__1">返回值</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="rtc_interface_design__table_urz_jws_c1c__entry__2">0，成功</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-0" headers="rtc_interface_design__table_urz_jws_c1c__entry__1">注意事项</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-0" headers="rtc_interface_design__table_urz_jws_c1c__entry__2">-</td>
|
||
</tr>
|
||
</tbody></table></div>
|
||
<div class="table-container"><table class="- topic/table table frame-all" id="rtc_interface_design__table_vrz_jws_c1c" data-ofbid="rtc_interface_design__table_vrz_jws_c1c" 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_rtc_set_alarm</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="rtc_interface_design__table_vrz_jws_c1c__entry__1">函数原型</th>
|
||
<th class="- topic/entry entry colsep-0 rowsep-1" id="rtc_interface_design__table_vrz_jws_c1c__entry__2">static int aic_rtc_set_alarm(struct device *dev, struct
|
||
rtc_wkalrm *alarm)</th>
|
||
</tr>
|
||
</thead><tbody class="- topic/tbody tbody">
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="rtc_interface_design__table_vrz_jws_c1c__entry__1">功能说明</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="rtc_interface_design__table_vrz_jws_c1c__entry__2">设置一个 Alarm，并使能 Alarm 中断</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="rtc_interface_design__table_vrz_jws_c1c__entry__1">参数定义</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="rtc_interface_design__table_vrz_jws_c1c__entry__2">
|
||
<ul class="- topic/ul ul" id="rtc_interface_design__ul_gn5_5gj_bcc" data-ofbid="rtc_interface_design__ul_gn5_5gj_bcc">
|
||
<li class="- topic/li li" data-ofbid="d201667e320__20250123155222">dev - 指向 RTC 设备的指针 </li>
|
||
<li class="- topic/li li" data-ofbid="d201667e323__20250123155222">alarm - 需要设置的 Alarm 信息</li>
|
||
</ul>
|
||
</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="rtc_interface_design__table_vrz_jws_c1c__entry__1">返回值</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="rtc_interface_design__table_vrz_jws_c1c__entry__2">0，成功</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-0" headers="rtc_interface_design__table_vrz_jws_c1c__entry__1">注意事项</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-0" headers="rtc_interface_design__table_vrz_jws_c1c__entry__2">-</td>
|
||
</tr>
|
||
</tbody></table></div>
|
||
<div class="table-container"><table class="- topic/table table frame-all" id="rtc_interface_design__table_wrz_jws_c1c" data-ofbid="rtc_interface_design__table_wrz_jws_c1c" 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_rtc_alarm_irq_enable</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="rtc_interface_design__table_wrz_jws_c1c__entry__1">函数原型</th>
|
||
<th class="- topic/entry entry colsep-0 rowsep-1" id="rtc_interface_design__table_wrz_jws_c1c__entry__2">static int aic_rtc_alarm_irq_enable(struct device *dev, unsigned
|
||
int enabled)</th>
|
||
</tr>
|
||
</thead><tbody class="- topic/tbody tbody">
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="rtc_interface_design__table_wrz_jws_c1c__entry__1">功能说明</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="rtc_interface_design__table_wrz_jws_c1c__entry__2">开关 Alarm 中断</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="rtc_interface_design__table_wrz_jws_c1c__entry__1">参数定义</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="rtc_interface_design__table_wrz_jws_c1c__entry__2">
|
||
<ul class="- topic/ul ul" id="rtc_interface_design__ul_gwf_vgj_bcc" data-ofbid="rtc_interface_design__ul_gwf_vgj_bcc">
|
||
<li class="- topic/li li" data-ofbid="d201667e394__20250123155222">dev - 指向 RTC 设备的指针 </li>
|
||
<li class="- topic/li li" data-ofbid="d201667e397__20250123155222">enabled - 使能标记</li>
|
||
</ul>
|
||
</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="rtc_interface_design__table_wrz_jws_c1c__entry__1">返回值</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="rtc_interface_design__table_wrz_jws_c1c__entry__2">0，成功</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-0" headers="rtc_interface_design__table_wrz_jws_c1c__entry__1">注意事项</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-0" headers="rtc_interface_design__table_wrz_jws_c1c__entry__2">-</td>
|
||
</tr>
|
||
</tbody></table></div>
|
||
</section>
|
||
<section class="- topic/section section" id="rtc_interface_design__section_j2s_mws_c1c" data-ofbid="rtc_interface_design__section_j2s_mws_c1c"><h2 class="- topic/title title sectiontitle">系统状态备份相关的内部接口</h2>
|
||
|
||
<div class="table-container"><table class="- topic/table table frame-all" id="rtc_interface_design__table_xrz_jws_c1c" data-ofbid="rtc_interface_design__table_xrz_jws_c1c" 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_rtc_set_bak</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="rtc_interface_design__table_xrz_jws_c1c__entry__1">函数原型</th>
|
||
<th class="- topic/entry entry colsep-0 rowsep-1" id="rtc_interface_design__table_xrz_jws_c1c__entry__2">void aic_rtc_set_bak(u32 offset, u32 mask, u32 shift, u32
|
||
val)</th>
|
||
</tr>
|
||
</thead><tbody class="- topic/tbody tbody">
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="rtc_interface_design__table_xrz_jws_c1c__entry__1">功能说明</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="rtc_interface_design__table_xrz_jws_c1c__entry__2">设置 BAK 寄存器中某几个（连续的）bit</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="rtc_interface_design__table_xrz_jws_c1c__entry__1">参数定义</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="rtc_interface_design__table_xrz_jws_c1c__entry__2">
|
||
<ul class="- topic/ul ul" id="rtc_interface_design__ul_lzp_vgj_bcc" data-ofbid="rtc_interface_design__ul_lzp_vgj_bcc">
|
||
<li class="- topic/li li" data-ofbid="d201667e473__20250123155222">offset - 寄存器的偏移地址，取值范围：0、4、8、12</li>
|
||
<li class="- topic/li li" data-ofbid="d201667e476__20250123155222">mask - 待设置的 bit 掩码 </li>
|
||
<li class="- topic/li li" data-ofbid="d201667e479__20250123155222">shift - 待设置的 bit 需要左移多少位 </li>
|
||
<li class="- topic/li li" data-ofbid="d201667e482__20250123155222">val - 待设置的实际值</li>
|
||
</ul>
|
||
</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="rtc_interface_design__table_xrz_jws_c1c__entry__1">返回值</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="rtc_interface_design__table_xrz_jws_c1c__entry__2">无</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-0" headers="rtc_interface_design__table_xrz_jws_c1c__entry__1">注意事项</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-0" headers="rtc_interface_design__table_xrz_jws_c1c__entry__2">设置过程：先将 val 左移，然后再做掩码处理</td>
|
||
</tr>
|
||
</tbody></table></div>
|
||
<div class="table-container"><table class="- topic/table table frame-all" id="rtc_interface_design__table_yrz_jws_c1c" data-ofbid="rtc_interface_design__table_yrz_jws_c1c" 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"> 7</span><span class="table--title-label-punctuation">. </span></span><span class="table--title">aic_rtc_get_bak</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="rtc_interface_design__table_yrz_jws_c1c__entry__1">函数原型</th>
|
||
<th class="- topic/entry entry colsep-0 rowsep-1" id="rtc_interface_design__table_yrz_jws_c1c__entry__2">u32 aic_rtc_get_bak(u32 offset, u32 mask, u32 shift)</th>
|
||
</tr>
|
||
</thead><tbody class="- topic/tbody tbody">
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="rtc_interface_design__table_yrz_jws_c1c__entry__1">功能说明</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="rtc_interface_design__table_yrz_jws_c1c__entry__2">读取 BAK 寄存器中某几个（连续的）bit</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="rtc_interface_design__table_yrz_jws_c1c__entry__1">参数定义</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="rtc_interface_design__table_yrz_jws_c1c__entry__2">
|
||
<ul class="- topic/ul ul" id="rtc_interface_design__ul_pbm_wgj_bcc" data-ofbid="rtc_interface_design__ul_pbm_wgj_bcc">
|
||
<li class="- topic/li li" data-ofbid="d201667e552__20250123155222">offset - 寄存器的偏移地址，取值范围：0、4、8、12</li>
|
||
<li class="- topic/li li" data-ofbid="d201667e555__20250123155222">mask - 待读取的 bit 掩码 </li>
|
||
<li class="- topic/li li" data-ofbid="d201667e558__20250123155222">shift - 待读取的 bit 需要右移多少位</li>
|
||
</ul>
|
||
</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="rtc_interface_design__table_yrz_jws_c1c__entry__1">返回值</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="rtc_interface_design__table_yrz_jws_c1c__entry__2">实际读取到的寄存器值</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-0" headers="rtc_interface_design__table_yrz_jws_c1c__entry__1">注意事项</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-0" headers="rtc_interface_design__table_yrz_jws_c1c__entry__2">读取过程：先将读取到的寄存器当前值做掩码处理，然后再右移</td>
|
||
</tr>
|
||
</tbody></table></div>
|
||
<div class="table-container"><table class="- topic/table table frame-all" id="rtc_interface_design__table_zrz_jws_c1c" data-ofbid="rtc_interface_design__table_zrz_jws_c1c" 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"> 8</span><span class="table--title-label-punctuation">. </span></span><span class="table--title">aic_set_software_reboot_reason</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="rtc_interface_design__table_zrz_jws_c1c__entry__1">函数原型</th>
|
||
<th class="- topic/entry entry colsep-0 rowsep-1" id="rtc_interface_design__table_zrz_jws_c1c__entry__2">void aic_set_software_reboot_reason(enum aic_reboot_reason
|
||
reason)</th>
|
||
</tr>
|
||
</thead><tbody class="- topic/tbody tbody">
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="rtc_interface_design__table_zrz_jws_c1c__entry__1">功能说明</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="rtc_interface_design__table_zrz_jws_c1c__entry__2">设置 reason 到 SYS_BAK 寄存器</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="rtc_interface_design__table_zrz_jws_c1c__entry__1">参数定义</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="rtc_interface_design__table_zrz_jws_c1c__entry__2">reason - aic_reboot_reason 类型的启动原因</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="rtc_interface_design__table_zrz_jws_c1c__entry__1">返回值</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="rtc_interface_design__table_zrz_jws_c1c__entry__2">无</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-0" headers="rtc_interface_design__table_zrz_jws_c1c__entry__1">注意事项</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-0" headers="rtc_interface_design__table_zrz_jws_c1c__entry__2">aic_reboot_reason 详见 <a xml:lang="zh-CN" lang="zh-CN" class="- topic/xref xref" href="rtc-key-procedure.html#rtc_key_procedures__section_l1w_z5s_c1c">Reboot Reason 的设计</a></td>
|
||
</tr>
|
||
</tbody></table></div>
|
||
<div class="table-container"><table class="- topic/table table frame-all" id="rtc_interface_design__table_asz_jws_c1c" data-ofbid="rtc_interface_design__table_asz_jws_c1c" 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"> 9</span><span class="table--title-label-punctuation">. </span></span><span class="table--title">aic_get_software_reboot_reason</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="rtc_interface_design__table_asz_jws_c1c__entry__1">函数原型</th>
|
||
<th class="- topic/entry entry colsep-0 rowsep-1" id="rtc_interface_design__table_asz_jws_c1c__entry__2">enum aic_reboot_reason
|
||
aic_get_software_reboot_reason(void)</th>
|
||
</tr>
|
||
</thead><tbody class="- topic/tbody tbody">
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="rtc_interface_design__table_asz_jws_c1c__entry__1">功能说明</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="rtc_interface_design__table_asz_jws_c1c__entry__2">从 BAK 寄存器中读取上一次系统的 Reboot reason 类型</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="rtc_interface_design__table_asz_jws_c1c__entry__1">参数定义</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="rtc_interface_design__table_asz_jws_c1c__entry__2">无</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="rtc_interface_design__table_asz_jws_c1c__entry__1">返回值</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="rtc_interface_design__table_asz_jws_c1c__entry__2">aic_reboot_reason 类型的启动原因</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-0" headers="rtc_interface_design__table_asz_jws_c1c__entry__1">注意事项</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-0" headers="rtc_interface_design__table_asz_jws_c1c__entry__2">aic_reboot_reason 详见 <a xml:lang="zh-CN" lang="zh-CN" class="- topic/xref xref" href="rtc-key-procedure.html#rtc_key_procedures__section_l1w_z5s_c1c">Reboot Reason 的设计</a></td>
|
||
</tr>
|
||
</tbody></table></div>
|
||
</section>
|
||
</div>
|
||
</article></main></div>
|
||
|
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|
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|
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|
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|
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</div>
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<nav role="navigation" id="wh_topic_toc" aria-label="On this page" class="col-lg-2 d-none d-lg-block navbar d-print-none">
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<div id="wh_topic_toc_content">
|
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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="#rtc_interface_design__section_wck_2ws_c1c" data-tocid="rtc_interface_design__section_wck_2ws_c1c">外部接口</a></div></li><li class="section-item"><div class="section-title"><a href="#rtc_interface_design__section_q4p_kws_c1c" data-tocid="rtc_interface_design__section_q4p_kws_c1c">RTC 相关的内部接口</a></div></li><li class="section-item"><div class="section-title"><a href="#rtc_interface_design__section_j2s_mws_c1c" data-tocid="rtc_interface_design__section_j2s_mws_c1c">系统状态备份相关的内部接口</a></div></li></ul></div>
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<p class="p1">Copyright © 2019-2024 广东匠芯创科技有限公司. All rights reserved.</p>
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<div class="generation_time">
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Update Time: 2025-01-23
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<script src="${pd}/publishing/publishing-styles-AIC-template/js/custom.js" defer="defer"></script>
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