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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/ic/ve/ve-interface_design.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)
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</div>
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<div class="- topic/body concept/conbody body conbody">
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<p class="- topic/p p" data-ofbid="d73260e33__20250123155204">用户进程通过 /dev/aic_ve 节点打开 VE 驱动。</p>
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<section class="- topic/section section" id="ve_interface_design__section_ud5_4tf_d1c" data-ofbid="ve_interface_design__section_ud5_4tf_d1c"><h2 class="- topic/title title sectiontitle">IOC_VE_GET_CLIENT</h2>
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<div class="table-container"><table class="- topic/table table frame-all" id="ve_interface_design__table_wd5_4tf_d1c" data-ofbid="ve_interface_design__table_wd5_4tf_d1c" data-cols="2"><caption></caption><colgroup><col style="width:25%"/><col style="width:75%"/></colgroup><thead class="- topic/thead thead">
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<tr class="- topic/row">
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<th class="- topic/entry entry colsep-1 rowsep-1" id="ve_interface_design__table_wd5_4tf_d1c__entry__1">功能说明</th>
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<th class="- topic/entry entry colsep-0 rowsep-1" id="ve_interface_design__table_wd5_4tf_d1c__entry__2">获取 VE 设备独占权限</th>
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</thead><tbody class="- topic/tbody tbody">
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<td class="- topic/entry entry colsep-1 rowsep-1" headers="ve_interface_design__table_wd5_4tf_d1c__entry__1">接口语法</td>
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<td class="- topic/entry entry colsep-0 rowsep-1" headers="ve_interface_design__table_wd5_4tf_d1c__entry__2">
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<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="ve_interface_design__codeblock_f3x_2fp_bcc" data-ofbid="ve_interface_design__codeblock_f3x_2fp_bcc"><code><strong class="hl-keyword">int</strong> ioctl(<strong class="hl-keyword">int</strong> fd, <strong class="hl-keyword">unsigned</strong> <strong class="hl-keyword">long</strong> cmd);</code></pre>
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</td>
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</tr>
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<tr class="- topic/row">
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<td class="- topic/entry entry colsep-1 rowsep-1" headers="ve_interface_design__table_wd5_4tf_d1c__entry__1">参数</td>
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<td class="- topic/entry entry colsep-0 rowsep-1" headers="ve_interface_design__table_wd5_4tf_d1c__entry__2">
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<ul class="- topic/ul ul" id="ve_interface_design__ul_wqx_chp_bcc" data-ofbid="ve_interface_design__ul_wqx_chp_bcc">
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<li class="- topic/li li" data-ofbid="d73260e84__20250123155204">CMD：IOC_VE_GET_CLIENT</li>
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</ul>
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</td>
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<td class="- topic/entry entry colsep-1 rowsep-1" headers="ve_interface_design__table_wd5_4tf_d1c__entry__1">返回值</td>
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<td class="- topic/entry entry colsep-0 rowsep-1" headers="ve_interface_design__table_wd5_4tf_d1c__entry__2">0：成功。<p class="- topic/p p" data-ofbid="d73260e97__20250123155204"><0：失败</p></td>
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</tr>
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<tr class="- topic/row">
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<td class="- topic/entry entry colsep-1 rowsep-0" headers="ve_interface_design__table_wd5_4tf_d1c__entry__1">注意事项</td>
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<td class="- topic/entry entry colsep-0 rowsep-0" headers="ve_interface_design__table_wd5_4tf_d1c__entry__2">无</td>
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</tr>
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</tbody></table></div>
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</section>
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<section class="- topic/section section" id="ve_interface_design__section_xd5_4tf_d1c" data-ofbid="ve_interface_design__section_xd5_4tf_d1c"><h2 class="- topic/title title sectiontitle">IOC_VE_PUT_CLIENT</h2>
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<div class="table-container"><table class="- topic/table table frame-all" id="ve_interface_design__table_zd5_4tf_d1c" data-ofbid="ve_interface_design__table_zd5_4tf_d1c" data-cols="2"><caption></caption><colgroup><col style="width:25%"/><col style="width:75%"/></colgroup><thead class="- topic/thead thead">
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<tr class="- topic/row">
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<th class="- topic/entry entry colsep-1 rowsep-1" id="ve_interface_design__table_zd5_4tf_d1c__entry__1">功能说明</th>
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<th class="- topic/entry entry colsep-0 rowsep-1" id="ve_interface_design__table_zd5_4tf_d1c__entry__2">释放 VE 设备独占权限</th>
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</tr>
|
|||
|
|
</thead><tbody class="- topic/tbody tbody">
|
|||
|
|
<tr class="- topic/row">
|
|||
|
|
<td class="- topic/entry entry colsep-1 rowsep-1" headers="ve_interface_design__table_zd5_4tf_d1c__entry__1">接口语法</td>
|
|||
|
|
<td class="- topic/entry entry colsep-0 rowsep-1" headers="ve_interface_design__table_zd5_4tf_d1c__entry__2">
|
|||
|
|
<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="ve_interface_design__codeblock_v12_kgp_bcc" data-ofbid="ve_interface_design__codeblock_v12_kgp_bcc"><code><strong class="hl-keyword">int</strong> ioctl(<strong class="hl-keyword">int</strong> fd, <strong class="hl-keyword">unsigned</strong> <strong class="hl-keyword">long</strong> cmd);</code></pre>
|
|||
|
|
</td>
|
|||
|
|
</tr>
|
|||
|
|
<tr class="- topic/row">
|
|||
|
|
<td class="- topic/entry entry colsep-1 rowsep-1" headers="ve_interface_design__table_zd5_4tf_d1c__entry__1">参数定义</td>
|
|||
|
|
<td class="- topic/entry entry colsep-0 rowsep-1" headers="ve_interface_design__table_zd5_4tf_d1c__entry__2">
|
|||
|
|
<ul class="- topic/ul ul" id="ve_interface_design__ul_bcq_bhp_bcc" data-ofbid="ve_interface_design__ul_bcq_bhp_bcc">
|
|||
|
|
|
|||
|
|
<li class="- topic/li li" data-ofbid="d73260e162__20250123155204">
|
|||
|
|
<p class="- topic/p p" data-ofbid="d73260e164__20250123155204">CMD：IOC_VE_PUT_CLIENT</p>
|
|||
|
|
</li>
|
|||
|
|
|
|||
|
|
</ul>
|
|||
|
|
</td>
|
|||
|
|
</tr>
|
|||
|
|
<tr class="- topic/row">
|
|||
|
|
<td class="- topic/entry entry colsep-1 rowsep-1" headers="ve_interface_design__table_zd5_4tf_d1c__entry__1">返回值</td>
|
|||
|
|
<td class="- topic/entry entry colsep-0 rowsep-1" headers="ve_interface_design__table_zd5_4tf_d1c__entry__2">0：成功。<p class="- topic/p p" data-ofbid="d73260e178__20250123155204"><0：失败</p></td>
|
|||
|
|
</tr>
|
|||
|
|
<tr class="- topic/row">
|
|||
|
|
<td class="- topic/entry entry colsep-1 rowsep-0" headers="ve_interface_design__table_zd5_4tf_d1c__entry__1">注意事项</td>
|
|||
|
|
<td class="- topic/entry entry colsep-0 rowsep-0" headers="ve_interface_design__table_zd5_4tf_d1c__entry__2">
|
|||
|
|
|
|||
|
|
<p class="- topic/p p" data-ofbid="d73260e189__20250123155204">IOC_VE_GET_CLIENT 和 IOC_VE_PUT_CLIENT
|
|||
|
|
的调用必须一一对应</p>
|
|||
|
|
</td>
|
|||
|
|
</tr>
|
|||
|
|
</tbody></table></div>
|
|||
|
|
</section>
|
|||
|
|
<section class="- topic/section section" id="ve_interface_design__section_a25_4tf_d1c" data-ofbid="ve_interface_design__section_a25_4tf_d1c"><h2 class="- topic/title title sectiontitle">IOC_VE_WAIT</h2>
|
|||
|
|
|
|||
|
|
<div class="table-container"><table class="- topic/table table frame-all" id="ve_interface_design__table_c25_4tf_d1c" data-ofbid="ve_interface_design__table_c25_4tf_d1c" data-cols="2"><caption></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="ve_interface_design__table_c25_4tf_d1c__entry__1">功能说明</th>
|
|||
|
|
<th class="- topic/entry entry colsep-0 rowsep-1" id="ve_interface_design__table_c25_4tf_d1c__entry__2">等待 VE 驱动编解码完成，获取 VE 寄存器状态</th>
|
|||
|
|
</tr>
|
|||
|
|
</thead><tbody class="- topic/tbody tbody">
|
|||
|
|
<tr class="- topic/row">
|
|||
|
|
<td class="- topic/entry entry colsep-1 rowsep-1" headers="ve_interface_design__table_c25_4tf_d1c__entry__1">接口语法</td>
|
|||
|
|
<td class="- topic/entry entry colsep-0 rowsep-1" headers="ve_interface_design__table_c25_4tf_d1c__entry__2">
|
|||
|
|
<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="ve_interface_design__codeblock_kgs_zfp_bcc" data-ofbid="ve_interface_design__codeblock_kgs_zfp_bcc"><code><strong class="hl-keyword">int</strong> ioctl(<strong class="hl-keyword">int</strong> fd, <strong class="hl-keyword">unsigned</strong> <strong class="hl-keyword">long</strong> cmd, <strong class="hl-keyword">struct</strong> wait_info *info);</code></pre>
|
|||
|
|
</td>
|
|||
|
|
</tr>
|
|||
|
|
<tr class="- topic/row">
|
|||
|
|
<td class="- topic/entry entry colsep-1 rowsep-1" headers="ve_interface_design__table_c25_4tf_d1c__entry__1">参数</td>
|
|||
|
|
<td class="- topic/entry entry colsep-0 rowsep-1" headers="ve_interface_design__table_c25_4tf_d1c__entry__2">
|
|||
|
|
<ul class="- topic/ul ul" id="ve_interface_design__ul_nzt_ygp_bcc" data-ofbid="ve_interface_design__ul_nzt_ygp_bcc">
|
|||
|
|
<li class="- topic/li li" data-ofbid="d73260e246__20250123155204">CMD：IOC_VE_WAIT</li>
|
|||
|
|
<li class="- topic/li li" data-ofbid="d73260e249__20250123155204">info: 指向 struct wait_info 指针</li>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
</ul>
|
|||
|
|
</td>
|
|||
|
|
</tr>
|
|||
|
|
<tr class="- topic/row">
|
|||
|
|
<td class="- topic/entry entry colsep-1 rowsep-1" headers="ve_interface_design__table_c25_4tf_d1c__entry__1">返回值</td>
|
|||
|
|
<td class="- topic/entry entry colsep-0 rowsep-1" headers="ve_interface_design__table_c25_4tf_d1c__entry__2">0：成功。<p class="- topic/p p" data-ofbid="d73260e262__20250123155204"><0：失败</p></td>
|
|||
|
|
</tr>
|
|||
|
|
<tr class="- topic/row">
|
|||
|
|
<td class="- topic/entry entry colsep-1 rowsep-0" headers="ve_interface_design__table_c25_4tf_d1c__entry__1">注意事项</td>
|
|||
|
|
<td class="- topic/entry entry colsep-0 rowsep-0" headers="ve_interface_design__table_c25_4tf_d1c__entry__2">
|
|||
|
|
|
|||
|
|
<p class="- topic/p p" data-ofbid="d73260e273__20250123155204">IOC_VE_WAIT 的调用必须在 IOC_VE_GET_CLIENT 和
|
|||
|
|
IOC_VE_PUT_CLIENT 之间</p>
|
|||
|
|
</td>
|
|||
|
|
</tr>
|
|||
|
|
</tbody></table></div>
|
|||
|
|
</section>
|
|||
|
|
<section class="- topic/section section" id="ve_interface_design__section_d25_4tf_d1c" data-ofbid="ve_interface_design__section_d25_4tf_d1c"><h2 class="- topic/title title sectiontitle">IOC_VE_GET_INFO</h2>
|
|||
|
|
|
|||
|
|
<div class="table-container"><table class="- topic/table table frame-all" id="ve_interface_design__table_f25_4tf_d1c" data-ofbid="ve_interface_design__table_f25_4tf_d1c" data-cols="2"><caption></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="ve_interface_design__table_f25_4tf_d1c__entry__1">功能说明</th>
|
|||
|
|
<th class="- topic/entry entry colsep-0 rowsep-1" id="ve_interface_design__table_f25_4tf_d1c__entry__2">获取 struct ve_info 数据</th>
|
|||
|
|
</tr>
|
|||
|
|
</thead><tbody class="- topic/tbody tbody">
|
|||
|
|
<tr class="- topic/row">
|
|||
|
|
<td class="- topic/entry entry colsep-1 rowsep-1" headers="ve_interface_design__table_f25_4tf_d1c__entry__1">接口语法</td>
|
|||
|
|
<td class="- topic/entry entry colsep-0 rowsep-1" headers="ve_interface_design__table_f25_4tf_d1c__entry__2">
|
|||
|
|
<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="ve_interface_design__codeblock_l3y_5fp_bcc" data-ofbid="ve_interface_design__codeblock_l3y_5fp_bcc"><code><strong class="hl-keyword">int</strong> ioctl(<strong class="hl-keyword">int</strong> fd, <strong class="hl-keyword">unsigned</strong> <strong class="hl-keyword">long</strong> cmd, <strong class="hl-keyword">struct</strong> ve_info *info);</code></pre>
|
|||
|
|
</td>
|
|||
|
|
</tr>
|
|||
|
|
<tr class="- topic/row">
|
|||
|
|
<td class="- topic/entry entry colsep-1 rowsep-1" headers="ve_interface_design__table_f25_4tf_d1c__entry__1">参数</td>
|
|||
|
|
<td class="- topic/entry entry colsep-0 rowsep-1" headers="ve_interface_design__table_f25_4tf_d1c__entry__2">
|
|||
|
|
<ul class="- topic/ul ul" id="ve_interface_design__ul_t2d_wfp_bcc" data-ofbid="ve_interface_design__ul_t2d_wfp_bcc">
|
|||
|
|
<li class="- topic/li li" data-ofbid="d73260e330__20250123155204">CMD：IOC_VE_GET_INFO</li>
|
|||
|
|
<li class="- topic/li li" data-ofbid="d73260e333__20250123155204">info: 指向 info 指针</li>
|
|||
|
|
</ul>
|
|||
|
|
</td>
|
|||
|
|
</tr>
|
|||
|
|
<tr class="- topic/row">
|
|||
|
|
<td class="- topic/entry entry colsep-1 rowsep-1" headers="ve_interface_design__table_f25_4tf_d1c__entry__1">返回值</td>
|
|||
|
|
<td class="- topic/entry entry colsep-0 rowsep-1" headers="ve_interface_design__table_f25_4tf_d1c__entry__2">0：成功。<0：失败</td>
|
|||
|
|
</tr>
|
|||
|
|
<tr class="- topic/row">
|
|||
|
|
<td class="- topic/entry entry colsep-1 rowsep-0" headers="ve_interface_design__table_f25_4tf_d1c__entry__1">注意事项</td>
|
|||
|
|
<td class="- topic/entry entry colsep-0 rowsep-0" headers="ve_interface_design__table_f25_4tf_d1c__entry__2">无</td>
|
|||
|
|
</tr>
|
|||
|
|
</tbody></table></div>
|
|||
|
|
</section>
|
|||
|
|
<section class="- topic/section section" id="ve_interface_design__section_g25_4tf_d1c" data-ofbid="ve_interface_design__section_g25_4tf_d1c"><h2 class="- topic/title title sectiontitle">IOC_VE_SET_INFO</h2>
|
|||
|
|
|
|||
|
|
<div class="table-container"><table class="- topic/table table frame-all" id="ve_interface_design__table_i25_4tf_d1c" data-ofbid="ve_interface_design__table_i25_4tf_d1c" data-cols="2"><caption></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="ve_interface_design__table_i25_4tf_d1c__entry__1">功能说明</th>
|
|||
|
|
<th class="- topic/entry entry colsep-0 rowsep-1" id="ve_interface_design__table_i25_4tf_d1c__entry__2">设置 struct ve_info 数据</th>
|
|||
|
|
</tr>
|
|||
|
|
</thead><tbody class="- topic/tbody tbody">
|
|||
|
|
<tr class="- topic/row">
|
|||
|
|
<td class="- topic/entry entry colsep-1 rowsep-1" headers="ve_interface_design__table_i25_4tf_d1c__entry__1">接口语法</td>
|
|||
|
|
<td class="- topic/entry entry colsep-0 rowsep-1" headers="ve_interface_design__table_i25_4tf_d1c__entry__2">
|
|||
|
|
<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="ve_interface_design__pre_h25_4tf_d1c" data-ofbid="ve_interface_design__pre_h25_4tf_d1c"><code><strong class="hl-keyword">int</strong> ioctl(<strong class="hl-keyword">int</strong> fd, <strong class="hl-keyword">unsigned</strong> <strong class="hl-keyword">long</strong> cmd, <strong class="hl-keyword">struct</strong> ve_info *info);</code></pre>
|
|||
|
|
</td>
|
|||
|
|
</tr>
|
|||
|
|
<tr class="- topic/row">
|
|||
|
|
<td class="- topic/entry entry colsep-1 rowsep-1" headers="ve_interface_design__table_i25_4tf_d1c__entry__1">参数</td>
|
|||
|
|
<td class="- topic/entry entry colsep-0 rowsep-1" headers="ve_interface_design__table_i25_4tf_d1c__entry__2">
|
|||
|
|
<ul class="- topic/ul ul" id="ve_interface_design__ul_onw_dgp_bcc" data-ofbid="ve_interface_design__ul_onw_dgp_bcc">
|
|||
|
|
<li class="- topic/li li" data-ofbid="d73260e410__20250123155204">CMD：IOC_VE_SET_INFO</li>
|
|||
|
|
<li class="- topic/li li" data-ofbid="d73260e413__20250123155204">info: 指向 info 指针</li>
|
|||
|
|
</ul>
|
|||
|
|
</td>
|
|||
|
|
</tr>
|
|||
|
|
<tr class="- topic/row">
|
|||
|
|
<td class="- topic/entry entry colsep-1 rowsep-1" headers="ve_interface_design__table_i25_4tf_d1c__entry__1">返回值</td>
|
|||
|
|
<td class="- topic/entry entry colsep-0 rowsep-1" headers="ve_interface_design__table_i25_4tf_d1c__entry__2">0：成功。<0：失败</td>
|
|||
|
|
</tr>
|
|||
|
|
<tr class="- topic/row">
|
|||
|
|
<td class="- topic/entry entry colsep-1 rowsep-0" headers="ve_interface_design__table_i25_4tf_d1c__entry__1">注意事项</td>
|
|||
|
|
<td class="- topic/entry entry colsep-0 rowsep-0" headers="ve_interface_design__table_i25_4tf_d1c__entry__2">无</td>
|
|||
|
|
</tr>
|
|||
|
|
</tbody></table></div>
|
|||
|
|
</section>
|
|||
|
|
<section class="- topic/section section" id="ve_interface_design__section_j25_4tf_d1c" data-ofbid="ve_interface_design__section_j25_4tf_d1c"><h2 class="- topic/title title sectiontitle">IOC_VE_RESET</h2>
|
|||
|
|
|
|||
|
|
<div class="table-container"><table class="- topic/table table frame-all" id="ve_interface_design__table_l25_4tf_d1c" data-ofbid="ve_interface_design__table_l25_4tf_d1c" data-cols="2"><caption></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="ve_interface_design__table_l25_4tf_d1c__entry__1">功能说明</th>
|
|||
|
|
<th class="- topic/entry entry colsep-0 rowsep-1" id="ve_interface_design__table_l25_4tf_d1c__entry__2">VE 驱动硬件复位</th>
|
|||
|
|
</tr>
|
|||
|
|
</thead><tbody class="- topic/tbody tbody">
|
|||
|
|
<tr class="- topic/row">
|
|||
|
|
<td class="- topic/entry entry colsep-1 rowsep-1" headers="ve_interface_design__table_l25_4tf_d1c__entry__1">接口语法</td>
|
|||
|
|
<td class="- topic/entry entry colsep-0 rowsep-1" headers="ve_interface_design__table_l25_4tf_d1c__entry__2">
|
|||
|
|
<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="ve_interface_design__pre_k25_4tf_d1c" data-ofbid="ve_interface_design__pre_k25_4tf_d1c"><code><strong class="hl-keyword">int</strong> ioctl(<strong class="hl-keyword">int</strong> fd, <strong class="hl-keyword">unsigned</strong> <strong class="hl-keyword">long</strong> cmd);</code></pre>
|
|||
|
|
</td>
|
|||
|
|
</tr>
|
|||
|
|
<tr class="- topic/row">
|
|||
|
|
<td class="- topic/entry entry colsep-1 rowsep-1" headers="ve_interface_design__table_l25_4tf_d1c__entry__1">参数</td>
|
|||
|
|
<td class="- topic/entry entry colsep-0 rowsep-1" headers="ve_interface_design__table_l25_4tf_d1c__entry__2">
|
|||
|
|
<ul class="- topic/ul ul" id="ve_interface_design__ul_y25_vgp_bcc" data-ofbid="ve_interface_design__ul_y25_vgp_bcc">
|
|||
|
|
|
|||
|
|
<li class="- topic/li li" data-ofbid="d73260e489__20250123155204">cmd：IOC_VE_RESET</li>
|
|||
|
|
|
|||
|
|
</ul>
|
|||
|
|
</td>
|
|||
|
|
</tr>
|
|||
|
|
<tr class="- topic/row">
|
|||
|
|
<td class="- topic/entry entry colsep-1 rowsep-1" headers="ve_interface_design__table_l25_4tf_d1c__entry__1">返回值</td>
|
|||
|
|
<td class="- topic/entry entry colsep-0 rowsep-1" headers="ve_interface_design__table_l25_4tf_d1c__entry__2">0：成功。<p class="- topic/p p" data-ofbid="d73260e502__20250123155204">IOC_VE_WAIT 的调用必须在 IOC_VE_GET_CLIENT 和 IOC_VE_PUT_CLIENT
|
|||
|
|
之间</p></td>
|
|||
|
|
</tr>
|
|||
|
|
<tr class="- topic/row">
|
|||
|
|
<td class="- topic/entry entry colsep-1 rowsep-0" headers="ve_interface_design__table_l25_4tf_d1c__entry__1">注意事项</td>
|
|||
|
|
<td class="- topic/entry entry colsep-0 rowsep-0" headers="ve_interface_design__table_l25_4tf_d1c__entry__2">无</td>
|
|||
|
|
</tr>
|
|||
|
|
</tbody></table></div>
|
|||
|
|
</section>
|
|||
|
|
<section class="- topic/section section" id="ve_interface_design__section_m25_4tf_d1c" data-ofbid="ve_interface_design__section_m25_4tf_d1c"><h2 class="- topic/title title sectiontitle">IOC_VE_ADD_DMA_BUF</h2>
|
|||
|
|
|
|||
|
|
<div class="table-container"><table class="- topic/table table frame-all" id="ve_interface_design__table_o25_4tf_d1c" data-ofbid="ve_interface_design__table_o25_4tf_d1c" data-cols="2"><caption></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="ve_interface_design__table_o25_4tf_d1c__entry__1">功能说明</th>
|
|||
|
|
<th class="- topic/entry entry colsep-0 rowsep-1" id="ve_interface_design__table_o25_4tf_d1c__entry__2">加载 DMA buffer, 获取 DMA buffer 物理地址</th>
|
|||
|
|
</tr>
|
|||
|
|
</thead><tbody class="- topic/tbody tbody">
|
|||
|
|
<tr class="- topic/row">
|
|||
|
|
<td class="- topic/entry entry colsep-1 rowsep-1" headers="ve_interface_design__table_o25_4tf_d1c__entry__1">接口语法</td>
|
|||
|
|
<td class="- topic/entry entry colsep-0 rowsep-1" headers="ve_interface_design__table_o25_4tf_d1c__entry__2">
|
|||
|
|
<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="ve_interface_design__pre_n25_4tf_d1c" data-ofbid="ve_interface_design__pre_n25_4tf_d1c"><code><strong class="hl-keyword">int</strong> ioctl(<strong class="hl-keyword">int</strong> fd, <strong class="hl-keyword">unsigned</strong> <strong class="hl-keyword">long</strong> cmd, <strong class="hl-keyword">struct</strong> dma_buf_info *buf);</code></pre>
|
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</td>
|
|||
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</tr>
|
|||
|
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<tr class="- topic/row">
|
|||
|
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<td class="- topic/entry entry colsep-1 rowsep-1" headers="ve_interface_design__table_o25_4tf_d1c__entry__1">参数</td>
|
|||
|
|
<td class="- topic/entry entry colsep-0 rowsep-1" headers="ve_interface_design__table_o25_4tf_d1c__entry__2">
|
|||
|
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<ul class="- topic/ul ul" id="ve_interface_design__ul_rqq_rgp_bcc" data-ofbid="ve_interface_design__ul_rqq_rgp_bcc">
|
|||
|
|
<li class="- topic/li li" data-ofbid="d73260e567__20250123155204">CMD：IOC_VE_ADD_DMA_BUF</li>
|
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|
|
<li class="- topic/li li" data-ofbid="d73260e570__20250123155204">buf: 指向 info 指针</li>
|
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</ul>
|
|||
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</td>
|
|||
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</tr>
|
|||
|
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<tr class="- topic/row">
|
|||
|
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<td class="- topic/entry entry colsep-1 rowsep-1" headers="ve_interface_design__table_o25_4tf_d1c__entry__1">返回值</td>
|
|||
|
|
<td class="- topic/entry entry colsep-0 rowsep-1" headers="ve_interface_design__table_o25_4tf_d1c__entry__2">0：成功。<0：失败</td>
|
|||
|
|
</tr>
|
|||
|
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<tr class="- topic/row">
|
|||
|
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<td class="- topic/entry entry colsep-1 rowsep-0" headers="ve_interface_design__table_o25_4tf_d1c__entry__1">注意事项</td>
|
|||
|
|
<td class="- topic/entry entry colsep-0 rowsep-0" headers="ve_interface_design__table_o25_4tf_d1c__entry__2">无</td>
|
|||
|
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</tr>
|
|||
|
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</tbody></table></div>
|
|||
|
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</section>
|
|||
|
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<section class="- topic/section section" id="ve_interface_design__section_p25_4tf_d1c" data-ofbid="ve_interface_design__section_p25_4tf_d1c"><h2 class="- topic/title title sectiontitle">IOC_VE_RM_DMA_BUF</h2>
|
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|
|||
|
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<div class="table-container"><table class="- topic/table table frame-all" id="ve_interface_design__table_r25_4tf_d1c" data-ofbid="ve_interface_design__table_r25_4tf_d1c" data-cols="2"><caption></caption><colgroup><col style="width:25%"/><col style="width:75%"/></colgroup><thead class="- topic/thead thead">
|
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<tr class="- topic/row">
|
|||
|
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<th class="- topic/entry entry colsep-1 rowsep-1" id="ve_interface_design__table_r25_4tf_d1c__entry__1">功能说明</th>
|
|||
|
|
<th class="- topic/entry entry colsep-0 rowsep-1" id="ve_interface_design__table_r25_4tf_d1c__entry__2">移除 DMA buffer</th>
|
|||
|
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</tr>
|
|||
|
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</thead><tbody class="- topic/tbody tbody">
|
|||
|
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<tr class="- topic/row">
|
|||
|
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<td class="- topic/entry entry colsep-1 rowsep-1" headers="ve_interface_design__table_r25_4tf_d1c__entry__1">接口语法</td>
|
|||
|
|
<td class="- topic/entry entry colsep-0 rowsep-1" headers="ve_interface_design__table_r25_4tf_d1c__entry__2">
|
|||
|
|
<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="ve_interface_design__pre_q25_4tf_d1c" data-ofbid="ve_interface_design__pre_q25_4tf_d1c"><code><strong class="hl-keyword">int</strong> ioctl(<strong class="hl-keyword">int</strong> fd, <strong class="hl-keyword">unsigned</strong> <strong class="hl-keyword">long</strong> cmd, <strong class="hl-keyword">struct</strong> dma_buf_info *buf);</code></pre>
|
|||
|
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</td>
|
|||
|
|
</tr>
|
|||
|
|
<tr class="- topic/row">
|
|||
|
|
<td class="- topic/entry entry colsep-1 rowsep-1" headers="ve_interface_design__table_r25_4tf_d1c__entry__1">参数</td>
|
|||
|
|
<td class="- topic/entry entry colsep-0 rowsep-1" headers="ve_interface_design__table_r25_4tf_d1c__entry__2">
|
|||
|
|
<ul class="- topic/ul ul" id="ve_interface_design__ul_adt_5gp_bcc" data-ofbid="ve_interface_design__ul_adt_5gp_bcc">
|
|||
|
|
<li class="- topic/li li" data-ofbid="d73260e646__20250123155204">CMD：IOC_VE_RM_DMA_BUF</li>
|
|||
|
|
<li class="- topic/li li" data-ofbid="d73260e649__20250123155204">buf: 指向 info 指针</li>
|
|||
|
|
</ul>
|
|||
|
|
</td>
|
|||
|
|
</tr>
|
|||
|
|
<tr class="- topic/row">
|
|||
|
|
<td class="- topic/entry entry colsep-1 rowsep-1" headers="ve_interface_design__table_r25_4tf_d1c__entry__1">返回值</td>
|
|||
|
|
<td class="- topic/entry entry colsep-0 rowsep-1" headers="ve_interface_design__table_r25_4tf_d1c__entry__2">0：成功。<0：失败</td>
|
|||
|
|
</tr>
|
|||
|
|
<tr class="- topic/row">
|
|||
|
|
<td class="- topic/entry entry colsep-1 rowsep-0" headers="ve_interface_design__table_r25_4tf_d1c__entry__1">注意事项</td>
|
|||
|
|
<td class="- topic/entry entry colsep-0 rowsep-0" headers="ve_interface_design__table_r25_4tf_d1c__entry__2">无</td>
|
|||
|
|
</tr>
|
|||
|
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</tbody></table></div>
|
|||
|
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</section>
|
|||
|
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</div>
|
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</article></main></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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|||
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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="#ve_interface_design__section_ud5_4tf_d1c" data-tocid="ve_interface_design__section_ud5_4tf_d1c">IOC_VE_GET_CLIENT</a></div></li><li class="section-item"><div class="section-title"><a href="#ve_interface_design__section_xd5_4tf_d1c" data-tocid="ve_interface_design__section_xd5_4tf_d1c">IOC_VE_PUT_CLIENT</a></div></li><li class="section-item"><div class="section-title"><a href="#ve_interface_design__section_a25_4tf_d1c" data-tocid="ve_interface_design__section_a25_4tf_d1c">IOC_VE_WAIT</a></div></li><li class="section-item"><div class="section-title"><a href="#ve_interface_design__section_d25_4tf_d1c" data-tocid="ve_interface_design__section_d25_4tf_d1c">IOC_VE_GET_INFO</a></div></li><li class="section-item"><div class="section-title"><a href="#ve_interface_design__section_g25_4tf_d1c" data-tocid="ve_interface_design__section_g25_4tf_d1c">IOC_VE_SET_INFO</a></div></li><li class="section-item"><div class="section-title"><a href="#ve_interface_design__section_j25_4tf_d1c" data-tocid="ve_interface_design__section_j25_4tf_d1c">IOC_VE_RESET</a></div></li><li class="section-item"><div class="section-title"><a href="#ve_interface_design__section_m25_4tf_d1c" data-tocid="ve_interface_design__section_m25_4tf_d1c">IOC_VE_ADD_DMA_BUF</a></div></li><li class="section-item"><div class="section-title"><a href="#ve_interface_design__section_p25_4tf_d1c" data-tocid="ve_interface_design__section_p25_4tf_d1c">IOC_VE_RM_DMA_BUF</a></div></li></ul></div>
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Update Time: 2025-01-23
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