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data-id="sdmc_data_structure_design" data-state="leaf"><span role="button" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/sdmc/sdmc-data_structure_design.html" id="sdmc_data_structure_design-d4445e4197-link">数据结构设计</a></div></div></li><li role="treeitem" class="active"><div data-tocid="sdmc_interface_design-d4445e4211" class="topicref" data-id="sdmc_interface_design" data-state="leaf"><span role="button" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/sdmc/sdmc-interface_design.html" id="sdmc_interface_design-d4445e4211-link">接口设计</a></div></div></li></ul></li><li role="treeitem"><div data-tocid="id-d4445e4225" class="topicref" data-id="id" data-state="leaf"><span role="button" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/sdmc/sdmc-faq.html" id="id-d4445e4225-link">常见问题</a></div></div></li></ul></li><li role="treeitem" aria-expanded="false"><div data-tocid="spi_nand_user_guide-d4445e4239" class="topicref" data-id="spi_nand_user_guide" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action spi_nand_user_guide-d4445e4239-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/spinand/spi-nand-user-guide.html" id="spi_nand_user_guide-d4445e4239-link">SPI NAND 使用指南</a></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="spi_nor_user_guide-d4445e4297" class="topicref" data-id="spi_nor_user_guide" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action spi_nor_user_guide-d4445e4297-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/spinor/spinor_user_guide.html" id="spi_nor_user_guide-d4445e4297-link">SPI NOR 使用指南</a></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="concept_n3v_ttw_bzb-d4445e4354" class="topicref" data-id="concept_n3v_ttw_bzb" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action concept_n3v_ttw_bzb-d4445e4354-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/file-system/file-system-user-guide.html" id="concept_n3v_ttw_bzb-d4445e4354-link">文件系统使用指南</a></div></div></li></ul></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 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">
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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/sdk/sdmc/sdmc-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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||
</div>
|
||
<div class="- topic/body concept/conbody body conbody">
|
||
<div class="- topic/p p" data-ofbid="d184542e33__20250123155219">以下接口皆为 MMC 子系统所需要的标准接口，通过 mmc_host_ops 注册到 MMC
|
||
子系统。<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="sdmc_interface_design__codeblock_rr5_2tt_c1c" data-ofbid="sdmc_interface_design__codeblock_rr5_2tt_c1c"><code><strong class="hl-keyword">static</strong> <strong class="hl-keyword">const</strong> <strong class="hl-keyword">struct</strong> mmc_host_ops artinchip_mmc_ops = {
|
||
.request = artinchip_mmc_request,
|
||
.pre_req = artinchip_mmc_pre_req,
|
||
.post_req = artinchip_mmc_post_req,
|
||
.set_ios = artinchip_mmc_set_ios,
|
||
.get_ro = artinchip_mmc_get_ro,
|
||
.get_cd = artinchip_mmc_get_cd,
|
||
.hw_reset = artinchip_mmc_hw_reset,
|
||
.enable_sdio_irq = artinchip_mmc_enable_sdio_irq,
|
||
.ack_sdio_irq = artinchip_mmc_ack_sdio_irq,
|
||
.execute_tuning = artinchip_mmc_execute_tuning,
|
||
.card_busy = artinchip_mmc_card_busy,
|
||
.start_signal_voltage_switch = artinchip_mmc_switch_voltage,
|
||
.init_card = artinchip_mmc_init_card,
|
||
};</code></pre></div>
|
||
|
||
<div class="table-container"><table class="- topic/table table frame-all" id="sdmc_interface_design__table_u3w_ftt_c1c" data-ofbid="sdmc_interface_design__table_u3w_ftt_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">artinchip_mmc_request</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="sdmc_interface_design__table_u3w_ftt_c1c__entry__1">函数原型</th>
|
||
<th class="- topic/entry entry colsep-0 rowsep-1" id="sdmc_interface_design__table_u3w_ftt_c1c__entry__2">static void artinchip_mmc_request(struct mmc_host *mmc, struct
|
||
mmc_request *mrq)</th>
|
||
</tr>
|
||
</thead><tbody class="- topic/tbody tbody">
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="sdmc_interface_design__table_u3w_ftt_c1c__entry__1">功能说明</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="sdmc_interface_design__table_u3w_ftt_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="sdmc_interface_design__table_u3w_ftt_c1c__entry__1">功能说明</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="sdmc_interface_design__table_u3w_ftt_c1c__entry__2">操作寄存器实现 request</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="sdmc_interface_design__table_u3w_ftt_c1c__entry__1">参数定义</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="sdmc_interface_design__table_u3w_ftt_c1c__entry__2">
|
||
<ul class="- topic/ul ul" id="sdmc_interface_design__ul_khk_jtj_bcc" data-ofbid="sdmc_interface_design__ul_khk_jtj_bcc">
|
||
<li class="- topic/li li" data-ofbid="d184542e90__20250123155219">mmc：MMC 设备指针 </li>
|
||
<li class="- topic/li li" data-ofbid="d184542e93__20250123155219">mrq：请求的参数和资源</li>
|
||
</ul>
|
||
</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="sdmc_interface_design__table_u3w_ftt_c1c__entry__1">返回值</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="sdmc_interface_design__table_u3w_ftt_c1c__entry__2">-</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-0" headers="sdmc_interface_design__table_u3w_ftt_c1c__entry__1">注意事项</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-0" headers="sdmc_interface_design__table_u3w_ftt_c1c__entry__2">-</td>
|
||
</tr>
|
||
</tbody></table></div>
|
||
<div class="table-container"><table class="- topic/table table frame-all" id="sdmc_interface_design__table_v3w_ftt_c1c" data-ofbid="sdmc_interface_design__table_v3w_ftt_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">artinchip_mmc_pre_req</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="sdmc_interface_design__table_v3w_ftt_c1c__entry__1">函数原型</th>
|
||
<th class="- topic/entry entry colsep-0 rowsep-1" id="sdmc_interface_design__table_v3w_ftt_c1c__entry__2">static void artinchip_mmc_pre_req(struct mmc_host *mmc, struct
|
||
mmc_request *mrq)</th>
|
||
</tr>
|
||
</thead><tbody class="- topic/tbody tbody">
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="sdmc_interface_design__table_v3w_ftt_c1c__entry__1">功能说明</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="sdmc_interface_design__table_v3w_ftt_c1c__entry__2">准备下一个 request</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="sdmc_interface_design__table_v3w_ftt_c1c__entry__1">参数定义</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="sdmc_interface_design__table_v3w_ftt_c1c__entry__2">
|
||
<ul class="- topic/ul ul" id="sdmc_interface_design__ul_b3f_ktj_bcc" data-ofbid="sdmc_interface_design__ul_b3f_ktj_bcc">
|
||
<li class="- topic/li li" data-ofbid="d184542e163__20250123155219">mmc：MMC 设备指针 </li>
|
||
<li class="- topic/li li" data-ofbid="d184542e166__20250123155219">mrq：请求的参数和资源</li>
|
||
</ul>
|
||
</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="sdmc_interface_design__table_v3w_ftt_c1c__entry__1">返回值</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="sdmc_interface_design__table_v3w_ftt_c1c__entry__2">-</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-0" headers="sdmc_interface_design__table_v3w_ftt_c1c__entry__1">注意事项</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-0" headers="sdmc_interface_design__table_v3w_ftt_c1c__entry__2">在准备下一个请求前，一般需要调用 artinchip_mmc_post_request</td>
|
||
</tr>
|
||
</tbody></table></div>
|
||
<div class="table-container"><table class="- topic/table table frame-all" id="sdmc_interface_design__table_w3w_ftt_c1c" data-ofbid="sdmc_interface_design__table_w3w_ftt_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">artinchip_mmc_post_req</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="sdmc_interface_design__table_w3w_ftt_c1c__entry__1">函数原型</th>
|
||
<th class="- topic/entry entry colsep-0 rowsep-1" id="sdmc_interface_design__table_w3w_ftt_c1c__entry__2">static void artinchip_mmc_post_req(struct mmc_host *mmc, struct
|
||
mmc_request *mrq, int err)</th>
|
||
</tr>
|
||
</thead><tbody class="- topic/tbody tbody">
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="sdmc_interface_design__table_w3w_ftt_c1c__entry__1">功能说明</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="sdmc_interface_design__table_w3w_ftt_c1c__entry__2">送出一个 request</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="sdmc_interface_design__table_w3w_ftt_c1c__entry__1">参数定义</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="sdmc_interface_design__table_w3w_ftt_c1c__entry__2">
|
||
<ul class="- topic/ul ul" id="sdmc_interface_design__ul_yqk_ktj_bcc" data-ofbid="sdmc_interface_design__ul_yqk_ktj_bcc">
|
||
<li class="- topic/li li" data-ofbid="d184542e236__20250123155219">mmc：MMC 设备指针 </li>
|
||
<li class="- topic/li li" data-ofbid="d184542e239__20250123155219">mrq：请求的参数和资源</li>
|
||
<li class="- topic/li li" data-ofbid="d184542e242__20250123155219">err：如果非零，需要清理掉 pre_req() 中申请的资源</li>
|
||
</ul>
|
||
</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="sdmc_interface_design__table_w3w_ftt_c1c__entry__1">返回值</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="sdmc_interface_design__table_w3w_ftt_c1c__entry__2">-</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-0" headers="sdmc_interface_design__table_w3w_ftt_c1c__entry__1">注意事项</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-0" headers="sdmc_interface_design__table_w3w_ftt_c1c__entry__2">-</td>
|
||
</tr>
|
||
</tbody></table></div>
|
||
<div class="table-container"><table class="- topic/table table frame-all" id="sdmc_interface_design__table_x3w_ftt_c1c" data-ofbid="sdmc_interface_design__table_x3w_ftt_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">artinchip_mmc_set_ios</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="sdmc_interface_design__table_x3w_ftt_c1c__entry__1">函数原型</th>
|
||
<th class="- topic/entry entry colsep-0 rowsep-1" id="sdmc_interface_design__table_x3w_ftt_c1c__entry__2">static void artinchip_mmc_set_ios(struct mmc_host *mmc, struct
|
||
mmc_ios *ios)</th>
|
||
</tr>
|
||
</thead><tbody class="- topic/tbody tbody">
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="sdmc_interface_design__table_x3w_ftt_c1c__entry__1">功能说明</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="sdmc_interface_design__table_x3w_ftt_c1c__entry__2">对设备的位宽、DDR 模式、clock、power 模式等进行配置</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="sdmc_interface_design__table_x3w_ftt_c1c__entry__1">参数定义</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="sdmc_interface_design__table_x3w_ftt_c1c__entry__2">
|
||
<ul class="- topic/ul ul" id="sdmc_interface_design__ul_jln_ltj_bcc" data-ofbid="sdmc_interface_design__ul_jln_ltj_bcc">
|
||
<li class="- topic/li li" data-ofbid="d184542e312__20250123155219">mmc：MMC 设备指针 </li>
|
||
<li class="- topic/li li" data-ofbid="d184542e315__20250123155219">ios：配置参数</li>
|
||
</ul>
|
||
</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="sdmc_interface_design__table_x3w_ftt_c1c__entry__1">返回值</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="sdmc_interface_design__table_x3w_ftt_c1c__entry__2">-</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-0" headers="sdmc_interface_design__table_x3w_ftt_c1c__entry__1">注意事项</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-0" headers="sdmc_interface_design__table_x3w_ftt_c1c__entry__2">-</td>
|
||
</tr>
|
||
</tbody></table></div>
|
||
<div class="table-container"><table class="- topic/table table frame-all" id="sdmc_interface_design__table_y3w_ftt_c1c" data-ofbid="sdmc_interface_design__table_y3w_ftt_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">artinchip_mmc_get_cd</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="sdmc_interface_design__table_y3w_ftt_c1c__entry__1">函数原型</th>
|
||
<th class="- topic/entry entry colsep-0 rowsep-1" id="sdmc_interface_design__table_y3w_ftt_c1c__entry__2">static int artinchip_mmc_get_cd(struct mmc_host *mmc)</th>
|
||
</tr>
|
||
</thead><tbody class="- topic/tbody tbody">
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="sdmc_interface_design__table_y3w_ftt_c1c__entry__1">功能说明</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="sdmc_interface_design__table_y3w_ftt_c1c__entry__2">探测外部 SD 设备</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="sdmc_interface_design__table_y3w_ftt_c1c__entry__1">参数定义</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="sdmc_interface_design__table_y3w_ftt_c1c__entry__2">mmc：MMC 设备指针</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="sdmc_interface_design__table_y3w_ftt_c1c__entry__1">返回值</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="sdmc_interface_design__table_y3w_ftt_c1c__entry__2">执行成功则返回 1</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-0" headers="sdmc_interface_design__table_y3w_ftt_c1c__entry__1">注意事项</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-0" headers="sdmc_interface_design__table_y3w_ftt_c1c__entry__2">-</td>
|
||
</tr>
|
||
</tbody></table></div>
|
||
<div class="table-container"><table class="- topic/table table frame-all" id="sdmc_interface_design__table_z3w_ftt_c1c" data-ofbid="sdmc_interface_design__table_z3w_ftt_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">artinchip_mmc_hw_reset</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="sdmc_interface_design__table_z3w_ftt_c1c__entry__1">函数原型</th>
|
||
<th class="- topic/entry entry colsep-0 rowsep-1" id="sdmc_interface_design__table_z3w_ftt_c1c__entry__2">static void artinchip_mmc_hw_reset(struct mmc_host *mmc)</th>
|
||
</tr>
|
||
</thead><tbody class="- topic/tbody tbody">
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="sdmc_interface_design__table_z3w_ftt_c1c__entry__1">功能说明</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="sdmc_interface_design__table_z3w_ftt_c1c__entry__2">对 MMC 控制器、DMA 等进行一次 reset</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="sdmc_interface_design__table_z3w_ftt_c1c__entry__1">参数定义</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="sdmc_interface_design__table_z3w_ftt_c1c__entry__2">mmc：MMC 设备指针</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="sdmc_interface_design__table_z3w_ftt_c1c__entry__1">返回值</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="sdmc_interface_design__table_z3w_ftt_c1c__entry__2">-</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-0" headers="sdmc_interface_design__table_z3w_ftt_c1c__entry__1">注意事项</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-0" headers="sdmc_interface_design__table_z3w_ftt_c1c__entry__2">-</td>
|
||
</tr>
|
||
</tbody></table></div>
|
||
<div class="table-container"><table class="- topic/table table frame-all" id="sdmc_interface_design__table_ajw_ftt_c1c" data-ofbid="sdmc_interface_design__table_ajw_ftt_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">artinchip_mmc_enable_sdio_irq</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="sdmc_interface_design__table_ajw_ftt_c1c__entry__1">函数原型</th>
|
||
<th class="- topic/entry entry colsep-0 rowsep-1" id="sdmc_interface_design__table_ajw_ftt_c1c__entry__2">static void artinchip_mmc_enable_sdio_irq(struct mmc_host *mmc,
|
||
int enb)</th>
|
||
</tr>
|
||
</thead><tbody class="- topic/tbody tbody">
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="sdmc_interface_design__table_ajw_ftt_c1c__entry__1">功能说明</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="sdmc_interface_design__table_ajw_ftt_c1c__entry__2">使能或者关闭 MMC 控制器的中断</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="sdmc_interface_design__table_ajw_ftt_c1c__entry__1">参数定义</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="sdmc_interface_design__table_ajw_ftt_c1c__entry__2">
|
||
<ul class="- topic/ul ul" id="sdmc_interface_design__ul_hm2_ptj_bcc" data-ofbid="sdmc_interface_design__ul_hm2_ptj_bcc">
|
||
<li class="- topic/li li" data-ofbid="d184542e514__20250123155219">mmc：MMC 设备指针 </li>
|
||
<li class="- topic/li li" data-ofbid="d184542e517__20250123155219">enb：使能开关</li>
|
||
</ul>
|
||
</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="sdmc_interface_design__table_ajw_ftt_c1c__entry__1">返回值</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="sdmc_interface_design__table_ajw_ftt_c1c__entry__2">-</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-0" headers="sdmc_interface_design__table_ajw_ftt_c1c__entry__1">注意事项</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-0" headers="sdmc_interface_design__table_ajw_ftt_c1c__entry__2">-</td>
|
||
</tr>
|
||
</tbody></table></div>
|
||
<div class="table-container"><table class="- topic/table table frame-all" id="sdmc_interface_design__table_bjw_ftt_c1c" data-ofbid="sdmc_interface_design__table_bjw_ftt_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">artinchip_mmc_ack_sdio_irq</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="sdmc_interface_design__table_bjw_ftt_c1c__entry__1">函数原型</th>
|
||
<th class="- topic/entry entry colsep-0 rowsep-1" id="sdmc_interface_design__table_bjw_ftt_c1c__entry__2">static void artinchip_mmc_ack_sdio_irq(struct mmc_host
|
||
*mmc)</th>
|
||
</tr>
|
||
</thead><tbody class="- topic/tbody tbody">
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="sdmc_interface_design__table_bjw_ftt_c1c__entry__1">功能说明</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="sdmc_interface_design__table_bjw_ftt_c1c__entry__2">打开 MMC 控制器的中断</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="sdmc_interface_design__table_bjw_ftt_c1c__entry__1">参数定义</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="sdmc_interface_design__table_bjw_ftt_c1c__entry__2">mmc：MMC 设备指针</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="sdmc_interface_design__table_bjw_ftt_c1c__entry__1">返回值</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="sdmc_interface_design__table_bjw_ftt_c1c__entry__2">-</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-0" headers="sdmc_interface_design__table_bjw_ftt_c1c__entry__1">注意事项</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-0" headers="sdmc_interface_design__table_bjw_ftt_c1c__entry__2">-</td>
|
||
</tr>
|
||
</tbody></table></div>
|
||
<div class="table-container"><table class="- topic/table table frame-all" id="sdmc_interface_design__table_cjw_ftt_c1c" data-ofbid="sdmc_interface_design__table_cjw_ftt_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">artinchip_mmc_execute_tuning</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="sdmc_interface_design__table_cjw_ftt_c1c__entry__1">函数原型</th>
|
||
<th class="- topic/entry entry colsep-0 rowsep-1" id="sdmc_interface_design__table_cjw_ftt_c1c__entry__2">static int artinchip_mmc_execute_tuning(struct mmc_host *mmc, u32
|
||
opcode)</th>
|
||
</tr>
|
||
</thead><tbody class="- topic/tbody tbody">
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="sdmc_interface_design__table_cjw_ftt_c1c__entry__1">功能说明</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="sdmc_interface_design__table_cjw_ftt_c1c__entry__2">MMC 的 tuning 功能接口</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="sdmc_interface_design__table_cjw_ftt_c1c__entry__1">参数定义</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="sdmc_interface_design__table_cjw_ftt_c1c__entry__2">
|
||
<ul class="- topic/ul ul" id="sdmc_interface_design__ul_mhp_4tj_bcc" data-ofbid="sdmc_interface_design__ul_mhp_4tj_bcc">
|
||
<li class="- topic/li li" data-ofbid="d184542e651__20250123155219">mmc：MMC 设备指针 </li>
|
||
<li class="- topic/li li" data-ofbid="d184542e654__20250123155219">opcode：tuning 命令码</li>
|
||
</ul>
|
||
</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="sdmc_interface_design__table_cjw_ftt_c1c__entry__1">返回值</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="sdmc_interface_design__table_cjw_ftt_c1c__entry__2">-</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-0" headers="sdmc_interface_design__table_cjw_ftt_c1c__entry__1">注意事项</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-0" headers="sdmc_interface_design__table_cjw_ftt_c1c__entry__2">-</td>
|
||
</tr>
|
||
</tbody></table></div>
|
||
<div class="table-container"><table class="- topic/table table frame-all" id="sdmc_interface_design__table_djw_ftt_c1c" data-ofbid="sdmc_interface_design__table_djw_ftt_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"> 10</span><span class="table--title-label-punctuation">. </span></span><span class="table--title">artinchip_mmc_card_busy</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="sdmc_interface_design__table_djw_ftt_c1c__entry__1">函数原型</th>
|
||
<th class="- topic/entry entry colsep-0 rowsep-1" id="sdmc_interface_design__table_djw_ftt_c1c__entry__2">static int artinchip_mmc_card_busy(struct mmc_host *mmc)</th>
|
||
</tr>
|
||
</thead><tbody class="- topic/tbody tbody">
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="sdmc_interface_design__table_djw_ftt_c1c__entry__1">功能说明</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="sdmc_interface_design__table_djw_ftt_c1c__entry__2">查看 MMC 设备是否处于 Busy 状态</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="sdmc_interface_design__table_djw_ftt_c1c__entry__1">参数定义</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="sdmc_interface_design__table_djw_ftt_c1c__entry__2">mmc：MMC 设备指针</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="sdmc_interface_design__table_djw_ftt_c1c__entry__1">返回值</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="sdmc_interface_design__table_djw_ftt_c1c__entry__2">若处于 idle 状态返回 0，busy 则返回 1</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-0" headers="sdmc_interface_design__table_djw_ftt_c1c__entry__1">注意事项</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-0" headers="sdmc_interface_design__table_djw_ftt_c1c__entry__2">-</td>
|
||
</tr>
|
||
</tbody></table></div>
|
||
<div class="table-container"><table class="- topic/table table frame-all" id="sdmc_interface_design__table_ejw_ftt_c1c" data-ofbid="sdmc_interface_design__table_ejw_ftt_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"> 11</span><span class="table--title-label-punctuation">. </span></span><span class="table--title">artinchip_mmc_switch_voltage</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="sdmc_interface_design__table_ejw_ftt_c1c__entry__1">函数原型</th>
|
||
<th class="- topic/entry entry colsep-0 rowsep-1" id="sdmc_interface_design__table_ejw_ftt_c1c__entry__2">static int artinchip_mmc_switch_voltage(struct mmc_host *mmc,
|
||
struct mmc_ios *ios)</th>
|
||
</tr>
|
||
</thead><tbody class="- topic/tbody tbody">
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="sdmc_interface_design__table_ejw_ftt_c1c__entry__1">功能说明</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="sdmc_interface_design__table_ejw_ftt_c1c__entry__2">设置 MMC 设备的工作电压</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="sdmc_interface_design__table_ejw_ftt_c1c__entry__1">参数定义</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="sdmc_interface_design__table_ejw_ftt_c1c__entry__2">
|
||
<ul class="- topic/ul ul" id="sdmc_interface_design__ul_fkn_ntj_bcc" data-ofbid="sdmc_interface_design__ul_fkn_ntj_bcc">
|
||
<li class="- topic/li li" data-ofbid="d184542e789__20250123155219">mmc：MMC 设备指针 </li>
|
||
<li class="- topic/li li" data-ofbid="d184542e792__20250123155219">ios：设置参数</li>
|
||
</ul>
|
||
</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="sdmc_interface_design__table_ejw_ftt_c1c__entry__1">返回值</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="sdmc_interface_design__table_ejw_ftt_c1c__entry__2">0，成功。 < 0，失败</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-0" headers="sdmc_interface_design__table_ejw_ftt_c1c__entry__1">注意事项</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-0" headers="sdmc_interface_design__table_ejw_ftt_c1c__entry__2">-</td>
|
||
</tr>
|
||
</tbody></table></div>
|
||
<div class="table-container"><table class="- topic/table table frame-all" id="sdmc_interface_design__table_fjw_ftt_c1c" data-ofbid="sdmc_interface_design__table_fjw_ftt_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"> 12</span><span class="table--title-label-punctuation">. </span></span><span class="table--title">artinchip_mmc_init_card</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="sdmc_interface_design__table_fjw_ftt_c1c__entry__1">函数原型</th>
|
||
<th class="- topic/entry entry colsep-0 rowsep-1" id="sdmc_interface_design__table_fjw_ftt_c1c__entry__2">static void artinchip_mmc_init_card(struct mmc_host *mmc, struct
|
||
mmc_card *card)</th>
|
||
</tr>
|
||
</thead><tbody class="- topic/tbody tbody">
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="sdmc_interface_design__table_fjw_ftt_c1c__entry__1">功能说明</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="sdmc_interface_design__table_fjw_ftt_c1c__entry__2">初始化外部 mmc 设备</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="sdmc_interface_design__table_fjw_ftt_c1c__entry__1">参数定义</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="sdmc_interface_design__table_fjw_ftt_c1c__entry__2">
|
||
<ul class="- topic/ul ul" id="sdmc_interface_design__ul_hmy_mtj_bcc" data-ofbid="sdmc_interface_design__ul_hmy_mtj_bcc">
|
||
<li class="- topic/li li" data-ofbid="d184542e862__20250123155219">mmc：MMC 设备指针 </li>
|
||
<li class="- topic/li li" data-ofbid="d184542e865__20250123155219">card：card 设备指针</li>
|
||
</ul>
|
||
</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="sdmc_interface_design__table_fjw_ftt_c1c__entry__1">返回值</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="sdmc_interface_design__table_fjw_ftt_c1c__entry__2">-</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-0" headers="sdmc_interface_design__table_fjw_ftt_c1c__entry__1">注意事项</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-0" headers="sdmc_interface_design__table_fjw_ftt_c1c__entry__2">-</td>
|
||
</tr>
|
||
</tbody></table></div>
|
||
|
||
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|
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</article></main></div>
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|
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