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aria-labelledby="button-expand-action audio_codec_user_guide-d4445e5806-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/audio_codec/audio-codec-user-guide.html" id="audio_codec_user_guide-d4445e5806-link">Audio Codec 使用指南</a></div></div></li></ul></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 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">
|
||
<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/ge/ge_interface.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: 2 minute(s)
|
||
</div>
|
||
<div class="- topic/body concept/conbody body conbody">
|
||
<div class="- topic/p p" data-ofbid="d210819e33__20250123155224"><span class="- topic/ph ph">用户态通过 <span class="+ topic/ph sw-d/filepath ph filepath">/dev/ge</span> 节点</span>打开 GE 驱动。<ul class="- topic/ul ul" id="ge_interface_design__ul_gmb_kdb_d1c" data-ofbid="ge_interface_design__ul_gmb_kdb_d1c">
|
||
<li class="- topic/li li" data-ofbid="d210819e42__20250123155224"><strong class="+ topic/ph hi-d/b ph b">IOC_GE_VERSION</strong>接口语法：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="ge_interface_design__codeblock_klc_ldb_d1c" data-ofbid="ge_interface_design__codeblock_klc_ldb_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, unsinged <strong class="hl-keyword">int</strong> *pversion);</code></pre><div class="table-container"><table class="- topic/table table frame-all" id="ge_interface_design__table_z2r_kdb_d1c" data-ofbid="ge_interface_design__table_z2r_kdb_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">IOC_GE_VERSION</span></caption><colgroup><col style="width:33.33333333333333%"/><col style="width:66.66666666666666%"/></colgroup><thead class="- topic/thead thead">
|
||
<tr class="- topic/row">
|
||
<th class="- topic/entry entry colsep-1 rowsep-1" id="ge_interface_design__table_z2r_kdb_d1c__entry__1">功能说明</th>
|
||
<th class="- topic/entry entry colsep-0 rowsep-1" id="ge_interface_design__table_z2r_kdb_d1c__entry__2">获取 GE 版本</th>
|
||
</tr>
|
||
</thead><tbody class="- topic/tbody tbody">
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="ge_interface_design__table_z2r_kdb_d1c__entry__1">参数</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="ge_interface_design__table_z2r_kdb_d1c__entry__2">cmd：IOC_GE_VERSION<p class="- topic/p p" data-ofbid="d210819e80__20250123155224">pversion: 指向 32 bits
|
||
无符号版本号指针</p></td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="ge_interface_design__table_z2r_kdb_d1c__entry__1">返回值</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="ge_interface_design__table_z2r_kdb_d1c__entry__2">0：成功<p class="- topic/p p" data-ofbid="d210819e91__20250123155224"><0：失败</p></td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-0" headers="ge_interface_design__table_z2r_kdb_d1c__entry__1">注意事项</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-0" headers="ge_interface_design__table_z2r_kdb_d1c__entry__2">-</td>
|
||
</tr>
|
||
</tbody></table></div></li>
|
||
<li class="- topic/li li" data-ofbid="d210819e107__20250123155224"><strong class="+ topic/ph hi-d/b ph b">IOC_GE_MODE</strong>接口语法：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="ge_interface_design__codeblock_f5t_mdb_d1c" data-ofbid="ge_interface_design__codeblock_f5t_mdb_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">enum</strong> ge_mode *mode);</code></pre><div class="table-container"><table class="- topic/table table frame-all" id="ge_interface_design__table_mhn_mdb_d1c" data-ofbid="ge_interface_design__table_mhn_mdb_d1c" data-cols="2"><caption></caption><colgroup><col style="width:33.33333333333333%"/><col style="width:66.66666666666666%"/></colgroup><thead class="- topic/thead thead">
|
||
<tr class="- topic/row">
|
||
<th class="- topic/entry entry colsep-1 rowsep-1" id="ge_interface_design__table_mhn_mdb_d1c__entry__1">功能说明</th>
|
||
<th class="- topic/entry entry colsep-0 rowsep-1" id="ge_interface_design__table_mhn_mdb_d1c__entry__2">获取工作模式</th>
|
||
</tr>
|
||
</thead><tbody class="- topic/tbody tbody">
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="ge_interface_design__table_mhn_mdb_d1c__entry__1">参数</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="ge_interface_design__table_mhn_mdb_d1c__entry__2">cmd：IOC_GE_MODE<p class="- topic/p p" data-ofbid="d210819e142__20250123155224">mode: enum ge_mode 指针</p></td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="ge_interface_design__table_mhn_mdb_d1c__entry__1">返回值</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="ge_interface_design__table_mhn_mdb_d1c__entry__2">0：成功<p class="- topic/p p" data-ofbid="d210819e153__20250123155224"><0：失败</p></td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-0" headers="ge_interface_design__table_mhn_mdb_d1c__entry__1">注意事项</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-0" headers="ge_interface_design__table_mhn_mdb_d1c__entry__2">无</td>
|
||
</tr>
|
||
</tbody></table></div></li>
|
||
<li class="- topic/li li" data-ofbid="d210819e169__20250123155224"><strong class="+ topic/ph hi-d/b ph b">IOC_GE_FILLRECT</strong><div class="- topic/p p" data-ofbid="d210819e172__20250123155224">接口语法：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="ge_interface_design__codeblock_vth_4db_d1c" data-ofbid="ge_interface_design__codeblock_vth_4db_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> ge_fillrect *fill);</code></pre></div><div class="table-container"><table class="- topic/table table frame-all" id="ge_interface_design__table_qnd_4db_d1c" data-ofbid="ge_interface_design__table_qnd_4db_d1c" data-cols="2"><caption></caption><colgroup><col style="width:33.33333333333333%"/><col style="width:66.66666666666666%"/></colgroup><thead class="- topic/thead thead">
|
||
<tr class="- topic/row">
|
||
<th class="- topic/entry entry colsep-1 rowsep-1" id="ge_interface_design__table_qnd_4db_d1c__entry__1">功能说明</th>
|
||
<th class="- topic/entry entry colsep-0 rowsep-1" id="ge_interface_design__table_qnd_4db_d1c__entry__2">矩形填充</th>
|
||
</tr>
|
||
</thead><tbody class="- topic/tbody tbody">
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="ge_interface_design__table_qnd_4db_d1c__entry__1">参数</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="ge_interface_design__table_qnd_4db_d1c__entry__2">cmd：IOC_GE_FILLRECT<p class="- topic/p p" data-ofbid="d210819e205__20250123155224">fill: 指向 fillrect 指针</p></td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="ge_interface_design__table_qnd_4db_d1c__entry__1">返回值</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="ge_interface_design__table_qnd_4db_d1c__entry__2">0：成功<p class="- topic/p p" data-ofbid="d210819e216__20250123155224"><0：失败</p></td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-0" headers="ge_interface_design__table_qnd_4db_d1c__entry__1">注意事项</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-0" headers="ge_interface_design__table_qnd_4db_d1c__entry__2">仅供 normal 模式使用, cmd queue 模式不可用</td>
|
||
</tr>
|
||
</tbody></table></div></li>
|
||
<li class="- topic/li li" data-ofbid="d210819e232__20250123155224"><strong class="+ topic/ph hi-d/b ph b">IOC_GE_BITBLT</strong><div class="- topic/p p" data-ofbid="d210819e235__20250123155224">接口语法：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="ge_interface_design__codeblock_hm4_pdb_d1c" data-ofbid="ge_interface_design__codeblock_hm4_pdb_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> ge_bitblt *bitblt);</code></pre></div><div class="table-container"><table class="- topic/table table frame-all" id="ge_interface_design__table_zyj_pdb_d1c" data-ofbid="ge_interface_design__table_zyj_pdb_d1c" data-cols="2"><caption></caption><colgroup><col style="width:33.33333333333333%"/><col style="width:66.66666666666666%"/></colgroup><thead class="- topic/thead thead">
|
||
<tr class="- topic/row">
|
||
<th class="- topic/entry entry colsep-1 rowsep-1" id="ge_interface_design__table_zyj_pdb_d1c__entry__1">功能说明</th>
|
||
<th class="- topic/entry entry colsep-0 rowsep-1" id="ge_interface_design__table_zyj_pdb_d1c__entry__2">位块搬移</th>
|
||
</tr>
|
||
</thead><tbody class="- topic/tbody tbody">
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="ge_interface_design__table_zyj_pdb_d1c__entry__1">参数</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="ge_interface_design__table_zyj_pdb_d1c__entry__2">
|
||
<ul class="- topic/ul ul" id="ge_interface_design__ul_cx5_11p_bcc" data-ofbid="ge_interface_design__ul_cx5_11p_bcc">
|
||
<li class="- topic/li li" data-ofbid="d210819e270__20250123155224">cmd：IOC_GE_BITBLT</li>
|
||
<li class="- topic/li li" data-ofbid="d210819e273__20250123155224">bitblt: 指向 bitblt 指针</li>
|
||
</ul>
|
||
</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="ge_interface_design__table_zyj_pdb_d1c__entry__1">返回值</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="ge_interface_design__table_zyj_pdb_d1c__entry__2">0：成功<p class="- topic/p p" data-ofbid="d210819e286__20250123155224"><0：失败</p></td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-0" headers="ge_interface_design__table_zyj_pdb_d1c__entry__1">注意事项</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-0" headers="ge_interface_design__table_zyj_pdb_d1c__entry__2">仅供 normal 模式使用, cmd queue 模式不可用</td>
|
||
</tr>
|
||
</tbody></table></div></li>
|
||
<li class="- topic/li li" data-ofbid="d210819e302__20250123155224"><strong class="+ topic/ph hi-d/b ph b">IOC_GE_ROTATE</strong><pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="ge_interface_design__codeblock_fr5_qdb_d1c" data-ofbid="ge_interface_design__codeblock_fr5_qdb_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> ge_rotation *rot);</code></pre><div class="table-container"><table class="- topic/table table frame-all" id="ge_interface_design__table_qkc_rdb_d1c" data-ofbid="ge_interface_design__table_qkc_rdb_d1c" data-cols="2"><caption></caption><colgroup><col style="width:33.33333333333333%"/><col style="width:66.66666666666666%"/></colgroup><thead class="- topic/thead thead">
|
||
<tr class="- topic/row">
|
||
<th class="- topic/entry entry colsep-1 rowsep-1" id="ge_interface_design__table_qkc_rdb_d1c__entry__1">功能说明</th>
|
||
<th class="- topic/entry entry colsep-0 rowsep-1" id="ge_interface_design__table_qkc_rdb_d1c__entry__2">任意角度旋转</th>
|
||
</tr>
|
||
</thead><tbody class="- topic/tbody tbody">
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="ge_interface_design__table_qkc_rdb_d1c__entry__1">参数</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="ge_interface_design__table_qkc_rdb_d1c__entry__2">
|
||
<ul class="- topic/ul ul" id="ge_interface_design__ul_g54_b1p_bcc" data-ofbid="ge_interface_design__ul_g54_b1p_bcc">
|
||
<li class="- topic/li li" data-ofbid="d210819e338__20250123155224">cmd：IOC_GE_ROTATE</li>
|
||
<li class="- topic/li li" data-ofbid="d210819e341__20250123155224">rot: 指向 rotation 指针</li>
|
||
</ul>
|
||
</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="ge_interface_design__table_qkc_rdb_d1c__entry__1">返回值</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="ge_interface_design__table_qkc_rdb_d1c__entry__2">0：成功<p class="- topic/p p" data-ofbid="d210819e354__20250123155224"><0：失败</p></td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-0" headers="ge_interface_design__table_qkc_rdb_d1c__entry__1">注意事项</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-0" headers="ge_interface_design__table_qkc_rdb_d1c__entry__2">仅供 normal 模式使用, cmd queue 模式不可用</td>
|
||
</tr>
|
||
</tbody></table></div></li>
|
||
<li class="- topic/li li" data-ofbid="d210819e371__20250123155224"><strong class="+ topic/ph hi-d/b ph b">IOC_GE_SYNC</strong><div class="- topic/p p" data-ofbid="d210819e374__20250123155224">接口语法：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="ge_interface_design__codeblock_prk_sdb_d1c" data-ofbid="ge_interface_design__codeblock_prk_sdb_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></div><div class="table-container"><table class="- topic/table table frame-all" id="ge_interface_design__table_wk2_sdb_d1c" data-ofbid="ge_interface_design__table_wk2_sdb_d1c" data-cols="2"><caption></caption><colgroup><col style="width:33.33333333333333%"/><col style="width:66.66666666666666%"/></colgroup><thead class="- topic/thead thead">
|
||
<tr class="- topic/row">
|
||
<th class="- topic/entry entry colsep-1 rowsep-1" id="ge_interface_design__table_wk2_sdb_d1c__entry__1">功能说明</th>
|
||
<th class="- topic/entry entry colsep-0 rowsep-1" id="ge_interface_design__table_wk2_sdb_d1c__entry__2">等待任务完成</th>
|
||
</tr>
|
||
</thead><tbody class="- topic/tbody tbody">
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="ge_interface_design__table_wk2_sdb_d1c__entry__1">参数</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="ge_interface_design__table_wk2_sdb_d1c__entry__2">cmd：IOC_GE_SYNC</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="ge_interface_design__table_wk2_sdb_d1c__entry__1">返回值</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="ge_interface_design__table_wk2_sdb_d1c__entry__2">0：成功<p class="- topic/p p" data-ofbid="d210819e416__20250123155224"><0：失败</p></td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-0" headers="ge_interface_design__table_wk2_sdb_d1c__entry__1">注意事项</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-0" headers="ge_interface_design__table_wk2_sdb_d1c__entry__2">-</td>
|
||
</tr>
|
||
</tbody></table></div></li>
|
||
<li class="- topic/li li" data-ofbid="d210819e432__20250123155224"><strong class="+ topic/ph hi-d/b ph b">IOC_GE_CMD_BUF_SIZE</strong><div class="- topic/p p" data-ofbid="d210819e435__20250123155224">接口语法：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="ge_interface_design__codeblock_vm5_tdb_d1c" data-ofbid="ge_interface_design__codeblock_vm5_tdb_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, unsinged <strong class="hl-keyword">int</strong> *size);</code></pre></div><div class="table-container"><table class="- topic/table table frame-all" id="ge_interface_design__table_ssn_tdb_d1c" data-ofbid="ge_interface_design__table_ssn_tdb_d1c" data-cols="2"><caption></caption><colgroup><col style="width:33.33333333333333%"/><col style="width:66.66666666666666%"/></colgroup><thead class="- topic/thead thead">
|
||
<tr class="- topic/row">
|
||
<th class="- topic/entry entry colsep-1 rowsep-1" id="ge_interface_design__table_ssn_tdb_d1c__entry__1">功能说明</th>
|
||
<th class="- topic/entry entry colsep-0 rowsep-1" id="ge_interface_design__table_ssn_tdb_d1c__entry__2">获取 cmd buffer size</th>
|
||
</tr>
|
||
</thead><tbody class="- topic/tbody tbody">
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="ge_interface_design__table_ssn_tdb_d1c__entry__1">参数</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="ge_interface_design__table_ssn_tdb_d1c__entry__2">
|
||
<ul class="- topic/ul ul" id="ge_interface_design__ul_i52_c1p_bcc" data-ofbid="ge_interface_design__ul_i52_c1p_bcc">
|
||
<li class="- topic/li li" data-ofbid="d210819e470__20250123155224">cmd：IOC_GE_CMD_BUF_SIZE</li>
|
||
<li class="- topic/li li" data-ofbid="d210819e473__20250123155224">size: 指向 32bits 无符号数指针</li>
|
||
</ul>
|
||
</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="ge_interface_design__table_ssn_tdb_d1c__entry__1">返回值</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="ge_interface_design__table_ssn_tdb_d1c__entry__2">0：成功<p class="- topic/p p" data-ofbid="d210819e486__20250123155224"><0：失败</p></td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-0" headers="ge_interface_design__table_ssn_tdb_d1c__entry__1">注意事项</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-0" headers="ge_interface_design__table_ssn_tdb_d1c__entry__2">cmd queue 模式可用，normal 模式不可用</td>
|
||
</tr>
|
||
</tbody></table></div></li>
|
||
<li class="- topic/li li" data-ofbid="d210819e502__20250123155224"><strong class="+ topic/ph hi-d/b ph b">
|
||
IOC_GE_ADD_DMA_BUF</strong><p class="- topic/p p" data-ofbid="d210819e505__20250123155224">接口语法：</p><pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="ge_interface_design__pre_lmc_vdb_d1c" data-ofbid="ge_interface_design__pre_lmc_vdb_d1c"><code>intioctl(intfd,unsignedlongcmd,<strong class="+ topic/ph hi-d/b ph b"><strong class="hl-keyword">struct</strong></strong><strong class="+ topic/ph hi-d/b ph b">dma_buf_info</strong>*buf);</code></pre><div class="table-container"><table class="- topic/table table frame-all" id="ge_interface_design__table_w4q_vdb_d1c" data-ofbid="ge_interface_design__table_w4q_vdb_d1c" data-cols="2"><caption></caption><colgroup><col style="width:33.33333333333333%"/><col style="width:66.66666666666666%"/></colgroup><thead class="- topic/thead thead">
|
||
<tr class="- topic/row">
|
||
<th class="- topic/entry entry colsep-1 rowsep-1" id="ge_interface_design__table_w4q_vdb_d1c__entry__1">功能说明</th>
|
||
<th class="- topic/entry entry colsep-0 rowsep-1" id="ge_interface_design__table_w4q_vdb_d1c__entry__2">添加 DMA buffer</th>
|
||
</tr>
|
||
</thead><tbody class="- topic/tbody tbody">
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="ge_interface_design__table_w4q_vdb_d1c__entry__1">参数</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="ge_interface_design__table_w4q_vdb_d1c__entry__2">
|
||
<ul class="- topic/ul ul" id="ge_interface_design__ul_fkq_c1p_bcc" data-ofbid="ge_interface_design__ul_fkq_c1p_bcc">
|
||
<li class="- topic/li li" data-ofbid="d210819e545__20250123155224">cmd：IOC_GE_ADD_DMA_BUF</li>
|
||
<li class="- topic/li li" data-ofbid="d210819e548__20250123155224">buf: 指向 info 指针</li>
|
||
</ul>
|
||
</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="ge_interface_design__table_w4q_vdb_d1c__entry__1">返回值</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="ge_interface_design__table_w4q_vdb_d1c__entry__2">0：成功<p class="- topic/p p" data-ofbid="d210819e561__20250123155224"><0：失败</p></td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-0" headers="ge_interface_design__table_w4q_vdb_d1c__entry__1">注意事项</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-0" headers="ge_interface_design__table_w4q_vdb_d1c__entry__2">-</td>
|
||
</tr>
|
||
</tbody></table></div></li>
|
||
<li class="- topic/li li" data-ofbid="d210819e577__20250123155224"><strong class="+ topic/ph hi-d/b ph b">IOC_GE_RM_DMA_BUF</strong><div class="- topic/p p" data-ofbid="d210819e580__20250123155224">接口语法：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="ge_interface_design__codeblock_hwh_ydb_d1c" data-ofbid="ge_interface_design__codeblock_hwh_ydb_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></div><div class="table-container"><table class="- topic/table table frame-all" id="ge_interface_design__table_fxx_xdb_d1c" data-ofbid="ge_interface_design__table_fxx_xdb_d1c" data-cols="2"><caption></caption><colgroup><col style="width:33.33333333333333%"/><col style="width:66.66666666666666%"/></colgroup><thead class="- topic/thead thead">
|
||
<tr class="- topic/row">
|
||
<th class="- topic/entry entry colsep-1 rowsep-1" id="ge_interface_design__table_fxx_xdb_d1c__entry__1">功能说明</th>
|
||
<th class="- topic/entry entry colsep-0 rowsep-1" id="ge_interface_design__table_fxx_xdb_d1c__entry__2">删除 DMA buffer</th>
|
||
</tr>
|
||
</thead><tbody class="- topic/tbody tbody">
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="ge_interface_design__table_fxx_xdb_d1c__entry__1">参数</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="ge_interface_design__table_fxx_xdb_d1c__entry__2">
|
||
<ul class="- topic/ul ul" id="ge_interface_design__ul_yhb_d1p_bcc" data-ofbid="ge_interface_design__ul_yhb_d1p_bcc">
|
||
<li class="- topic/li li" data-ofbid="d210819e615__20250123155224">cmd：IOC_GE_RM_DMA_BUF</li>
|
||
<li class="- topic/li li" data-ofbid="d210819e618__20250123155224">buf: 指向 info 指针</li>
|
||
</ul>
|
||
</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="ge_interface_design__table_fxx_xdb_d1c__entry__1">返回值</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="ge_interface_design__table_fxx_xdb_d1c__entry__2">0：成功<p class="- topic/p p" data-ofbid="d210819e631__20250123155224"><0：失败</p></td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-0" headers="ge_interface_design__table_fxx_xdb_d1c__entry__1">注意事项</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-0" headers="ge_interface_design__table_fxx_xdb_d1c__entry__2">无</td>
|
||
</tr>
|
||
</tbody></table></div></li>
|
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