2025-09-30 11:56:06 +08:00
<!DOCTYPE html> < html xmlns = "http://www.w3.org/1999/xhtml" xml:lang = "zh-cn" lang = "zh-cn" data-whc_version = "26.0" >
< head > < meta http-equiv = "Content-Type" content = "text/html; charset=UTF-8" / > < meta name = "viewport" content = "width=device-width, initial-scale=1.0" / > < meta http-equiv = "X-UA-Compatible" content = "IE=edge" / > < meta name = "description" content = "源码说明 源代码位于 bsp/artinchip/ ： ， ， ， / > < meta name = "DC.rights.owner" content = "(C) 版权 2025" / > < meta name = "copyright" content = "(C) 版权 2025" / > < meta name = "generator" content = "DITA-OT" / > < meta name = "DC.type" content = "topic" / > < meta name = "DC.contributor" content = "yan.wang" / > < meta name = "DC.date.modified" content = "2024-12-05" / > < meta name = "DC.format" content = "HTML5" / > < meta name = "DC.identifier" content = "id" / > < meta name = "DC.language" content = "zh-CN" / > < title > 设计说明< / title > <!-- Build number 2023110923. --> < meta name = "wh-path2root" content = "../../../" / > < meta name = "wh-toc-id" content = "" / > < meta name = "wh-source-relpath" content = "topics/sdk/mdi/mdi_design.dita" / > < meta name = "wh-out-relpath" content = "topics/sdk/mdi/mdi_design.html" / >
< link rel = "stylesheet" type = "text/css" href = "../../../webhelp/app/commons.css?buildId=2023110923" / >
< link rel = "stylesheet" type = "text/css" href = "../../../webhelp/app/topic.css?buildId=2023110923" / >
< script src = "../../../webhelp/app/options/properties.js?buildId=20250121171154" > < / script >
< script src = "../../../webhelp/app/localization/strings.js?buildId=2023110923" > < / script >
< script src = "../../../webhelp/app/search/index/keywords.js?buildId=20250121171154" > < / script >
< script defer = "defer" src = "../../../webhelp/app/commons.js?buildId=2023110923" > < / script >
< script defer = "defer" src = "../../../webhelp/app/topic.js?buildId=2023110923" > < / script >
< link rel = "stylesheet" type = "text/css" href = "../../../webhelp/template/aic-styles-web.css?buildId=2023110923" / > < link rel = "stylesheet" type = "text/css" href = "../../../webhelp/template/notes.css?buildId=2023110923" / > < link rel = "stylesheet" type = "text/css" href = "../../../webhelp/template/aic-common.css?buildId=2023110923" / > < link rel = "stylesheet" type = "text/css" href = "../../../webhelp/template/aic-images.css?buildId=2023110923" / > < link rel = "stylesheet" type = "text/css" href = "../../../webhelp/template/footnote.css?buildId=2023110923" / > < link rel = "stylesheet" type = "text/css" href = "../../../webhelp/template/aic-web-watermark.css?buildId=2023110923" / > < link rel = "stylesheet" type = "text/css" href = "../../../webhelp/template/topic-body-list.css?buildId=2023110923" / > < / head >
< body id = "id" class = "wh_topic_page frmBody" >
< a href = "#wh_topic_body" class = "sr-only sr-only-focusable" >
跳转到主要内容
< / a >
< header class = "navbar navbar-default wh_header" >
< div class = "container-fluid" >
< div class = "wh_header_flex_container navbar-nav navbar-expand-md navbar-dark" >
< div class = "wh_logo_and_publication_title_container" >
< div class = "wh_logo_and_publication_title" >
< a href = "http://www.artinchip.com" class = " wh_logo d-none d-sm-block " > < img src = "../../../company-logo-white.png" alt = "RTOS SDK 使用指南SDK 指南文件" / > < / a >
< div class = " wh_publication_title " > < a href = "../../../index.html" > < span class = "booktitle" > < span class = "ph mainbooktitle" > RTOS SDK 使用指南< / span > < span class = "ph booktitlealt" > SDK 指南文件< / span > < / span > < / a > < / div >
< / div >
< / div >
< div class = "wh_top_menu_and_indexterms_link collapse navbar-collapse" id = "wh_top_menu_and_indexterms_link" >
< / div >
< / div >
< / div >
< / header >
< div class = " wh_search_input navbar-form wh_topic_page_search search " role = "form" >
< form id = "searchForm" method = "get" role = "search" action = "../../../search.html" > < div > < input type = "search" placeholder = "搜索 " class = "wh_search_textfield" id = "textToSearch" name = "searchQuery" aria-label = "搜索查询" required = "required" / > < button type = "submit" class = "wh_search_button" aria-label = "搜索" > < span class = "search_input_text" > 搜索< / span > < / button > < / div > < / form >
< / div >
< div class = "container-fluid" id = "wh_topic_container" >
< div class = "row" >
< nav class = "wh_tools d-print-none navbar-expand-md" aria-label = "Tools" >
< div data-tooltip-position = "bottom" class = " wh_breadcrumb " > < / div >
< div class = "wh_right_tools" >
< button class = "wh_hide_highlight" aria-label = "切换搜索突出显示" title = "切换搜索突出显示" > < / button >
< button class = "webhelp_expand_collapse_sections" data-next-state = "collapsed" aria-label = "折叠截面" title = "折叠截面" > < / button >
< div class = " wh_print_link print d-none d-md-inline-block " > < button onClick = "window.print()" title = "打印此页" aria-label = "打印此页" > < / button > < / div >
< / div >
< / nav >
< / div >
< div class = "wh_content_area" >
< div class = "row" >
< div class = "col-lg-10 col-md-10 col-sm-10 col-xs-12" id = "wh_topic_body" >
< button id = "wh_close_topic_toc_button" class = "close-toc-button d-none" aria-label = "Toggle topic table of content" aria-controls = "wh_topic_toc" aria-expanded = "true" >
< span class = "close-toc-icon-container" >
< span class = "close-toc-icon" > < / span >
< / span >
< / button >
< div class = " wh_topic_content body " > < main role = "main" > < article class = "- topic/topic topic" role = "article" aria-labelledby = "ariaid-title1" > < span class = "edit-link" style = "font-size:12px; opacity:0.6; text-align:right; vertical-align:middle" > < a target = "_blank" href = "http://172.16.35.88/tasks/jdssno1uvvbf2mltu9kb9v3if05d5gopuakboe8hlud18rma/edit/F:/aicdita/aicdita-cn/topics/sdk/mdi/mdi_design.dita" > Edit online< / a > < / span > < h1 class = "- topic/title title topictitle1" id = "ariaid-title1" > 设计说明< / h1 > < div class = "date inPage" > 5 Dec 2024< / div > < div style = "color: gray;" >
Read time: 12 minute(s)
< / div > < div class = "- topic/body body" > < section class = "- topic/section section" id = "id__section_i3c_ldy_2dc" data-ofbid = "id__section_i3c_ldy_2dc" > < strong class = "+ topic/ph hi-d/b ph b" > 源码说明< / strong > < div class = "- topic/div div" >
< div class = "- topic/div div section" id = "id__id2" >
< p class = "- topic/p p" data-ofbid = "d264557e24__20250121171732" > 源代码位于 < span class = "+ topic/ph sw-d/filepath ph filepath" > bsp/artinchip/< / span > ： < / p >
< ul class = "- topic/ul ul simple" id = "id__ul_j3c_ldy_2dc" data-ofbid = "id__ul_j3c_ldy_2dc" > < li class = "- topic/li li" data-ofbid = "d264557e31__20250121171732" >
< p class = "- topic/p p" data-ofbid = "d264557e33__20250121171732" > < span class = "+ topic/ph sw-d/filepath ph filepath" > bsp/artinchip/drv/mdi/drv_mdi.c< / span > ，
层实现< / p >
< / li > < li class = "- topic/li li" data-ofbid = "d264557e38__20250121171732" >
< p class = "- topic/p p" data-ofbid = "d264557e40__20250121171732" > < span class = "+ topic/ph sw-d/filepath ph filepath" > bsp/artinchip/hal/mdi/hal_mdi.c< / span > ， < / p >
< / li > < li class = "- topic/li li" data-ofbid = "d264557e45__20250121171732" >
< p class = "- topic/p p" data-ofbid = "d264557e47__20250121171732" > < span class = "+ topic/ph sw-d/filepath ph filepath" > bsp/artinchip/include/hal/hal_mdi.h< / span > ，
层接口头文件< / p >
< / li > < / ul >
< / div >
< / div > < / section > < section class = "- topic/section section" id = "id__section_shh_mdy_2dc" data-ofbid = "id__section_shh_mdy_2dc" > < h2 class = "- topic/title title sectiontitle" > 模块架构< / h2 >
< div class = "- topic/div div" >
< div class = "- topic/div div section" id = "id__id3" >
< p class = "- topic/p p" data-ofbid = "d264557e63__20250121171732" > 整个软件系统的架构图如下：< / p >
< figure class = "- topic/fig fig fignone" id = "id__fig_k3c_ldy_2dc" data-ofbid = "id__fig_k3c_ldy_2dc" > < br / > < div class = "imagecenter" > < img class = "- topic/image image imagecenter" id = "id__image_l3c_ldy_2dc" src = "../../../images/mdi/sw_system11.png" alt = "sw_system11" / > < / div > < br / > < / figure >
< ul class = "- topic/ul ul simple" id = "id__ul_m3c_ldy_2dc" data-ofbid = "id__ul_m3c_ldy_2dc" > < li class = "- topic/li li" data-ofbid = "d264557e74__20250121171732" >
< p class = "- topic/p p" data-ofbid = "d264557e76__20250121171732" > MDI
驱动需要和
ArtInChip 自制的 MPP
中间件配合使用，
Driver 层采用普通的 API
方式向上提供接口。< / p >
< / li > < li class = "- topic/li li" data-ofbid = "d264557e79__20250121171732" >
< p class = "- topic/p p" data-ofbid = "d264557e81__20250121171732" > MPP VIN 模块对 APP 提供类似 ioctl 的接口封装，类似 Linux 中的 ioctl
接口定义。< / p >
< / li > < li class = "- topic/li li" data-ofbid = "d264557e84__20250121171732" >
< p class = "- topic/p p" data-ofbid = "d264557e86__20250121171732" > MDI
需要用到多任务并发，暂不支持在裸机环境中运行。< / p >
< / li > < / ul >
< / div >
< / div >
< / section > < / div > < article class = "- topic/topic topic nested1" aria-labelledby = "ariaid-title2" xml:lang = "zh-CN" lang = "zh-CN" id = "topic_oxx_53y_2dc" > < span class = "edit-link" style = "font-size:12px; opacity:0.6; text-align:right; vertical-align:middle" > < a target = "_blank" href = "http://172.16.35.88/tasks/jdssno1uvvbf2mltu9kb9v3if05d5gopuakboe8hlud18rma/edit/F:/aicdita/aicdita-cn/topics/sdk/mdi/mdi_design.dita" > Edit online< / a > < / span > < h2 class = "- topic/title title topictitle2" id = "ariaid-title2" > 关键流程设计< / h2 > < div class = "- topic/body body" > < section class = "- topic/section section" id = "topic_oxx_53y_2dc__section_ayb_ndy_2dc" data-ofbid = "topic_oxx_53y_2dc__section_ayb_ndy_2dc" > < h3 class = "- topic/title title sectiontitle" > 初始化流程< / h3 >
< p class = "- topic/p p" data-ofbid = "d264557e101__20250121171732" > 总体上看， < / p > < ol class = "- topic/ol ol arabic simple" id = "topic_oxx_53y_2dc__ol_n3c_ldy_2dc" data-ofbid = "topic_oxx_53y_2dc__ol_n3c_ldy_2dc" > < li class = "- topic/li li" data-ofbid = "d264557e104__20250121171732" >
< p class = "- topic/p p" data-ofbid = "d264557e106__20250121171732" > 使能 MDI 时钟< / p >
< / li > < li class = "- topic/li li" data-ofbid = "d264557e109__20250121171732" >
< p class = "- topic/p p" data-ofbid = "d264557e111__20250121171732" > 打卡 MDI 中断< / p >
< / li > < li class = "- topic/li li" data-ofbid = "d264557e114__20250121171732" >
< p class = "- topic/p p" data-ofbid = "d264557e116__20250121171732" > 初始化 VideoBuf 链表< / p >
< / li > < li class = "- topic/li li" data-ofbid = "d264557e119__20250121171732" >
< p class = "- topic/p p" data-ofbid = "d264557e121__20250121171732" > 使能 DVP 控制器< / p >
< / li > < / ol > < / section > < section class = "- topic/section section" id = "topic_oxx_53y_2dc__buffer" data-ofbid = "topic_oxx_53y_2dc__buffer" > < h3 class = "- topic/title title sectiontitle" > Buffer 队列管理< / h3 >
< p class = "- topic/p p" data-ofbid = "d264557e129__20250121171732" > Buffer 队列管理复用 MPP VIN Buffer 模块中的机制，通过三个链表来管理这些 Buffer。< / p > < div class = "- topic/div div section" id = "topic_oxx_53y_2dc__mdi-de-buffer" >
< strong class = "+ topic/ph hi-d/b ph b" > MDI-> DE 场景的 Buffer 管理< / strong >
< p class = "- topic/p p" data-ofbid = "d264557e136__20250121171732" > 整个 Buffer 流转的过程如下图：< / p > < figure class = "- topic/fig fig fignone" id = "topic_oxx_53y_2dc__id10" data-ofbid = "topic_oxx_53y_2dc__id10" > < br / > < div class = "imagecenter" > < img class = "- topic/image image imagecenter" id = "topic_oxx_53y_2dc__image_o3c_ldy_2dc" src = "../../../images/mdi/mdi_de_buf_flow.png" alt = "mdi_de_buf_flow" / > < / div > < br / > < figcaption data-caption-side = "bottom" class = "- topic/title title figcapcenter" > < span class = "figtitleprefix fig--title-label" > 图< span class = "fig--title-label-number" > 1< / span > < span class = "fig--title-label-punctuation" > . < / span > < / span > < span class = "fig--title" > MDI-> DE 场景中的 Buffer 流转过程< / span > < / figcaption > < / figure > < / div > < div class = "- topic/div div section" id = "topic_oxx_53y_2dc__mdi-ge-de-buffer" >
< strong class = "+ topic/ph hi-d/b ph b" > MDI-> GE-> DE 场景的 Buffer 管理< / strong >
< p class = "- topic/p p" data-ofbid = "d264557e149__20250121171732" > 整个 Buffer 流转的过程如下图：< / p > < figure class = "- topic/fig fig fignone" id = "topic_oxx_53y_2dc__id11" data-ofbid = "topic_oxx_53y_2dc__id11" > < br / > < div class = "imagecenter" > < img class = "- topic/image image imagecenter" id = "topic_oxx_53y_2dc__image_p3c_ldy_2dc" src = "../../../images/mdi/mdi_ge_de_buf_flow.png" alt = "mdi_ge_de_buf_flow" / > < / div > < br / > < figcaption data-caption-side = "bottom" class = "- topic/title title figcapcenter" > < span class = "figtitleprefix fig--title-label" > 图< span class = "fig--title-label-number" > 2< / span > < span class = "fig--title-label-punctuation" > . < / span > < / span > < span class = "fig--title" > MDI-> GE-> DE 场景中的 Buffer 流转过程< / span > < / figcaption > < / figure > < / div > < div class = "- topic/div div section" id = "topic_oxx_53y_2dc__id6" >
< strong class = "+ topic/ph hi-d/b ph b" > 局部刷新场景中的 Buffer 管理< / strong >
< p class = "- topic/p p" data-ofbid = "d264557e162__20250121171732" > 在局部刷新场景中，为了节省带宽，通常采用以下流程：< / p > < ul class = "- topic/ul ul simple" id = "topic_oxx_53y_2dc__ul_qsl_jdy_2dc" data-ofbid = "topic_oxx_53y_2dc__ul_qsl_jdy_2dc" > < li class = "- topic/li li" data-ofbid = "d264557e165__20250121171732" >
< p class = "- topic/p p" data-ofbid = "d264557e167__20250121171732" > 先推一屏完整的数据。< / p >
< / li > < li class = "- topic/li li" data-ofbid = "d264557e170__20250121171732" >
< p class = "- topic/p p" data-ofbid = "d264557e172__20250121171732" > 后面帧都采用局部刷新方式，只推一个小图，位置信息由
2A、2B 命令提供。< / p >
< / li > < li class = "- topic/li li" data-ofbid = "d264557e175__20250121171732" >
< p class = "- topic/p p" data-ofbid = "d264557e177__20250121171732" > 将小图数据填充到空的 Buffer 中，并将这个 Buffer 提交给 GE 模块进行处理。< / p >
< p class = "- topic/p p" data-ofbid = "d264557e180__20250121171732" > GE 做数据搬运和局部填充。< / p >
< / li > < li class = "- topic/li li" data-ofbid = "d264557e183__20250121171732" >
< p class = "- topic/p p" data-ofbid = "d264557e185__20250121171732" > 将处理后的 Buffer 提交给 DE 模块进行显示。< / p >
< / li > < / ul > < div class = "- topic/p p" data-ofbid = "d264557e188__20250121171732" > 数据通路： MDI
→ GE
→
DE。< div class = "- topic/note note note note_note" id = "topic_oxx_53y_2dc__note_fbw_j4y_2dc" data-ofbid = "topic_oxx_53y_2dc__note_fbw_j4y_2dc" > < span class = "note__title" > 注：< / span > 运行时需要一直保持一个背景图的备份< / div > < / div > < figure class = "- topic/fig fig fignone" id = "topic_oxx_53y_2dc__id12" data-ofbid = "topic_oxx_53y_2dc__id12" > < br / > < div class = "imagecenter" > < img class = "- topic/image image imagecenter" id = "topic_oxx_53y_2dc__image_q3c_ldy_2dc" src = "../../../images/mdi/mdi_part_refresh_flow.png" alt = "mdi_part_refresh_flow" / > < / div > < br / > < figcaption data-caption-side = "bottom" class = "- topic/title title figcapcenter" > < span class = "figtitleprefix fig--title-label" > 图< span class = "fig--title-label-number" > 3< / span > < span class = "fig--title-label-punctuation" > . < / span > < / span > < span class = "fig--title" > MDI
→ GE → DE 局部刷新场景中的 Buffer 流转过程< / span > < / figcaption > < / figure >
< / div > < / section > < section class = "- topic/section section" id = "topic_oxx_53y_2dc__id7" data-ofbid = "topic_oxx_53y_2dc__id7" > < h3 class = "- topic/title title sectiontitle" > 中断处理流程< / h3 >
< p class = "- topic/p p" data-ofbid = "d264557e204__20250121171732" > MDI 的中断处理中需要处理
Buf
队列的流转和
Display
Buffer Interface
(DBI)
命令响应。< / p >
< div class = "- topic/p p" data-ofbid = "d264557e207__20250121171732" > 对于图像数据的接收，
硬件提供以下关键的中断状态：< div class = "- topic/note note note note_note" id = "topic_oxx_53y_2dc__note_hhd_w4t_2dc" data-ofbid = "topic_oxx_53y_2dc__note_hhd_w4t_2dc" > < span class = "note__title" > 注：< / span > < span class = "+ topic/ph ui-d/uicontrol ph uicontrol" > HNUM Interrupt< / span > 会先于
< span class = "+ topic/ph ui-d/uicontrol ph uicontrol" > Frame done< / span > 发生。< / div > < / div >
< ol class = "- topic/ol ol arabic simple" id = "topic_oxx_53y_2dc__ol_r3c_ldy_2dc" data-ofbid = "topic_oxx_53y_2dc__ol_r3c_ldy_2dc" > < li class = "- topic/li li" data-ofbid = "d264557e218__20250121171732" >
< dl class = "- topic/dl dl simple" id = "topic_oxx_53y_2dc__dl_s3c_ldy_2dc" data-ofbid = "topic_oxx_53y_2dc__dl_s3c_ldy_2dc" > < dt class = "- topic/dt dt dlterm" data-ofbid = "d264557e222__20250121171732" > HNUM Interrupt< / dt > < dd class = "- topic/dd dd" >
< p class = "- topic/p p" data-ofbid = "d264557e226__20250121171732" > 用于判断当前
Register 是否可以修改。出现 < span class = "+ topic/ph ui-d/uicontrol ph uicontrol" > HNUM
Interrupt< / span > ，表示当前图像帧已经完成 10
行（驱动中默认配置）数据的刷新，硬件已经读走了当前的
Register 值（影子寄存器），软件可以传入下一个 Buf 的参数了。< / p >
< / dd > < / dl >
< / li > < li class = "- topic/li li" data-ofbid = "d264557e233__20250121171732" >
< dl class = "- topic/dl dl simple" id = "topic_oxx_53y_2dc__dl_t3c_ldy_2dc" data-ofbid = "topic_oxx_53y_2dc__dl_t3c_ldy_2dc" > < dt class = "- topic/dt dt dlterm" data-ofbid = "d264557e237__20250121171732" > Frame done< / dt > < dd class = "- topic/dd dd" >
< p class = "- topic/p p" data-ofbid = "d264557e241__20250121171732" > 用于判断当前
buf 是否完成（ < span class = "+ topic/ph ui-d/uicontrol ph uicontrol" > Frame
done< / span > ，表示当前帧的数据传输完成，此时该
buf 可以从 QBuf list 切换到 DQbuf list。< / p >
< / dd > < / dl >
< / li > < / ol >
< p class = "- topic/p p" data-ofbid = "d264557e249__20250121171732" > 按照 MDI 硬件设计的逻辑，< span class = "+ topic/ph ui-d/uicontrol ph uicontrol" > HNUM Interrupt< / span > 和 < span class = "+ topic/ph ui-d/uicontrol ph uicontrol" > Frame
done< / span > 会间隔产生，如下所示：< / p >
< p class = "- topic/p p" data-ofbid = "d264557e259__20250121171732" >
< code class = "+ topic/ph pr-d/codeph ph codeph" > HNUM Interrupt -> Frame done-> HNUM Interrupt -> Frame
done-> HNUM Interrupt -> Frame done...< / code >
< / p >
< figure class = "- topic/fig fig fignone" id = "topic_oxx_53y_2dc__id13" data-ofbid = "topic_oxx_53y_2dc__id13" > < br / > < div class = "imagecenter" > < img class = "- topic/image image imagecenter" id = "topic_oxx_53y_2dc__image_u3c_ldy_2dc" src = "../../../images/mdi/mdi_irq_flow.png" alt = "mdi_irq_flow" / > < / div > < br / > < figcaption data-caption-side = "bottom" class = "- topic/title title figcapcenter" > < span class = "figtitleprefix fig--title-label" > 图< span class = "fig--title-label-number" > 4< / span > < span class = "fig--title-label-punctuation" > . < / span > < / span > < span class = "fig--title" > MDI
驱动中 IRQ 处理流程< / span > < / figcaption > < / figure >
< / section > < / div > < / article > < article class = "- topic/topic topic nested1" aria-labelledby = "ariaid-title3" xml:lang = "zh-CN" lang = "zh-CN" id = "topic_zfs_bjy_2dc" > < span class = "edit-link" style = "font-size:12px; opacity:0.6; text-align:right; vertical-align:middle" > < a target = "_blank" href = "http://172.16.35.88/tasks/jdssno1uvvbf2mltu9kb9v3if05d5gopuakboe8hlud18rma/edit/F:/aicdita/aicdita-cn/topics/sdk/mdi/mdi_design.dita" > Edit online< / a > < / span > < h2 class = "- topic/title title topictitle2" id = "ariaid-title3" > 自定义 DBI 命令设计< / h2 > < div class = "- topic/body body section" id = "topic_zfs_bjy_2dc__dbi" > < p class = "- topic/p p" data-ofbid = "d264557e276__20250121171732" > Display Buffer Interface (DBI) 命令是用于控制显示设备（如液晶显示屏）的一组指令。这些命令通常由主控芯片 (MCU)
发送给显示控制器，以配置和控制显示参数。以下是一些常见的 DBI 命令及其功能：< / p > < section class = "- topic/section section" id = "topic_zfs_bjy_2dc__section_wnk_lqy_2dc" data-ofbid = "topic_zfs_bjy_2dc__section_wnk_lqy_2dc" > < h3 class = "- topic/title title sectiontitle" > 0x3A： < / h3 >
< p class = "- topic/p p" data-ofbid = "d264557e283__20250121171732" > 0x3A 命令是一个标准的 DBI 命令，用于设置显示接口的像素格式。 < / p >
< figure class = "- topic/fig fig fignone" id = "topic_zfs_bjy_2dc__id14" data-ofbid = "topic_zfs_bjy_2dc__id14" > < br / > < div class = "imagecenter" > < img class = "- topic/image image imagecenter" id = "topic_zfs_bjy_2dc__image_v3c_ldy_2dc" src = "../../../images/mdi/dbi_cmd_3a.png" alt = "dbi_cmd_3a" / > < / div > < br / > < figcaption data-caption-side = "bottom" class = "- topic/title title figcapcenter" > < span class = "figtitleprefix fig--title-label" > 图< span class = "fig--title-label-number" > 5< / span > < span class = "fig--title-label-punctuation" > . < / span > < / span > < span class = "fig--title" > 0x3A 命令的原始定义< / span > < / figcaption > < / figure >
< p class = "- topic/p p" data-ofbid = "d264557e293__20250121171732" > 为了区分一些特殊格式，对 BIT3 新增了扩展定义。通过修改 BIT3， < / p >
< div class = "- topic/p p" data-ofbid = "d264557e296__20250121171732" > 针对 BIT3
的自定义如下：< pre class = "+ topic/pre pr-d/codeblock pre codeblock language-c" id = "topic_zfs_bjy_2dc__codeblock_k41_vdy_2dc" data-ofbid = "topic_zfs_bjy_2dc__codeblock_k41_vdy_2dc" > < em class = "hl-comment" > /* The flag is a extend bit of CMD 0x3A, which should be set by Host.
*
* Bus Mode MCU Interface Flag RGB sequence
* ------------ ------------- ---- --------------
* SPI 16BIT x RGB565
* SPI 24BIT 0 RGB888
* SPI 24BIT 1 RGB888_2
* 8080/6080 x8 16BIT x X8 RGB565
* 8080/6080 x8 24BIT x X8 RGB888
* 8080/6080 x16 16BIT x X16 RGB565
* 8080/6080 x16 18BIT 0 X16 RGBX666
* 8080/6080 x16 18BIT 1 X16 XRGB666
* 8080/6080 x16 24BIT 0 X16 RGBX888
* 8080/6080 x16 24BIT 1 X16 RGBX
*/< / em > < / pre > < div class = "- topic/note note note note_note" id = "topic_zfs_bjy_2dc__note_cts_2qy_2dc" data-ofbid = "topic_zfs_bjy_2dc__note_cts_2qy_2dc" > < span class = "note__title" > 注：< / span > 对应其中的 Flag 定义，代码详见
< span class = "+ topic/ph sw-d/filepath ph filepath" > drv_mdi.c< / span > 的接口
< span class = "+ topic/keyword pr-d/apiname keyword apiname" > aic_mdi_in_fmt_set()< / span > ） < / div > < / div >
< / section > < section class = "- topic/section section" id = "topic_zfs_bjy_2dc__section_h5m_4qy_2dc" data-ofbid = "topic_zfs_bjy_2dc__section_h5m_4qy_2dc" > < h3 class = "- topic/title title sectiontitle" > 0xAC： < / h3 >
< div class = "- topic/div div section" id = "topic_zfs_bjy_2dc__ge-control-0xac" >
0xAC
命令用于配置图形引擎（ ） ， < div class = "- topic/p p" data-ofbid = "d264557e316__20250121171732" > 0xAC
命令定义如下：< pre class = "+ topic/pre pr-d/codeblock pre codeblock language-c" id = "topic_zfs_bjy_2dc__codeblock_x5l_vdy_2dc" data-ofbid = "topic_zfs_bjy_2dc__codeblock_x5l_vdy_2dc" > #< span class = "hl-directive" > define< / span > DBI_CMD_GE_H_FLIP BIT(< span class = "hl-number" > 6< / span > )
#< span class = "hl-directive" > define< / span > DBI_CMD_GE_V_FLIP BIT(< span class = "hl-number" > 5< / span > )
#< span class = "hl-directive" > define< / span > DBI_CMD_GE_SCALE BIT(< span class = "hl-number" > 4< / span > )
#< span class = "hl-directive" > define< / span > DBI_CMD_GE_ROT_MASK GENMASK(< span class = "hl-number" > 1< / span > , < span class = "hl-number" > 0< / span > )< / pre >
< / div > < div class = "- topic/p p" data-ofbid = "d264557e321__20250121171732" > Rotation
的角度定义，复用 MPP
中的定义：< pre class = "+ topic/pre pr-d/codeblock pre codeblock language-c" id = "topic_zfs_bjy_2dc__codeblock_ycq_vdy_2dc" data-ofbid = "topic_zfs_bjy_2dc__codeblock_ycq_vdy_2dc" > < em class = "hl-comment" > /* rotate flags for GE/VE ctrl */< / em >
#< span class = "hl-directive" > define< / span > MPP_ROTATION_< span class = "hl-number" > 0< / span > (< span class = "hl-number" > 0< / span > < < < span class = "hl-number" > 0< / span > )
#< span class = "hl-directive" > define< / span > MPP_ROTATION_< span class = "hl-number" > 90< / span > (< span class = "hl-number" > 1< / span > < < < span class = "hl-number" > 0< / span > )
#< span class = "hl-directive" > define< / span > MPP_ROTATION_< span class = "hl-number" > 180< / span > (< span class = "hl-number" > 2< / span > < < < span class = "hl-number" > 0< / span > )
#< span class = "hl-directive" > define< / span > MPP_ROTATION_< span class = "hl-number" > 270< / span > (< span class = "hl-number" > 3< / span > < < < span class = "hl-number" > 0< / span > )< / pre > < / div > < / div >
< / section > < / div > < / article > < article class = "- topic/topic topic nested1" aria-labelledby = "ariaid-title4" xml:lang = "zh-CN" lang = "zh-CN" id = "topic_udm_2jy_2dc" > < span class = "edit-link" style = "font-size:12px; opacity:0.6; text-align:right; vertical-align:middle" > < a target = "_blank" href = "http://172.16.35.88/tasks/jdssno1uvvbf2mltu9kb9v3if05d5gopuakboe8hlud18rma/edit/F:/aicdita/aicdita-cn/topics/sdk/mdi/mdi_design.dita" > Edit online< / a > < / span > < h2 class = "- topic/title title topictitle2" id = "ariaid-title4" > 数据结构设计< / h2 > < div class = "- topic/body body" > < section class = "- topic/section section" id = "topic_udm_2jy_2dc__id8" data-ofbid = "topic_udm_2jy_2dc__id8" > < h3 class = "- topic/title title sectiontitle" > struct aic_mdi_cfg< / h3 >
< div class = "- topic/p p" data-ofbid = "d264557e335__20250121171732" > 属于 MPP VIN Dev 层的接口，定义了输入信号、显示输出的配置信息，由 APP
层在初始化时传入，包含以下字段：< pre class = "+ topic/pre pr-d/codeblock pre codeblock language-c" id = "topic_udm_2jy_2dc__codeblock_sfz_vdy_2dc" data-ofbid = "topic_udm_2jy_2dc__codeblock_sfz_vdy_2dc" > < strong class = "hl-keyword" > struct< / strong > aic_mdi_cfg {
< em class = "hl-comment" > /* Input format, should be decided by some GPIO */< / em >
< strong class = "hl-keyword" > enum< / strong > mdi_bus_mode bus_mode;
< strong class = "hl-keyword" > enum< / strong > mdi_dat_endian big_endian;
< strong class = "hl-keyword" > struct< / strong > mdi_bus_< span class = "hl-number" > 8080< / span > _cfg bus_< span class = "hl-number" > 8080< / span > ;
< strong class = "hl-keyword" > struct< / strong > mdi_bus_spi_cfg bus_spi;
< em class = "hl-comment" > /* Input pixel format, set by Host write command */< / em >
u32 width;
u32 height;
< em class = "hl-comment" > /* Output pixel format, depends on the panel */< / em >
u32 stride;
u32 sizeimage;
};< / pre > < / div >
< div class = "- topic/p p" data-ofbid = "d264557e342__20250121171732" > 其中，引用到了关于 DBI
BUS
的配置信息：< pre class = "+ topic/pre pr-d/codeblock pre codeblock language-c" id = "topic_udm_2jy_2dc__codeblock_n3b_c2y_2dc" data-ofbid = "topic_udm_2jy_2dc__codeblock_n3b_c2y_2dc" > < em class = "hl-comment" > /* Information of SPI bus */< / em >
< strong class = "hl-keyword" > struct< / strong > mdi_bus_spi_cfg {
< strong class = "hl-keyword" > enum< / strong > mdi_spi_mode mode;
< strong class = "hl-keyword" > enum< / strong > mdi_spi_disp_fmt seq;
< strong class = "hl-keyword" > enum< / strong > mdi_spi_rd_fmt rd_fmt;
};
< em class = "hl-comment" > /* Information of 8080/6800 bus */< / em >
< strong class = "hl-keyword" > struct< / strong > mdi_bus_< span class = "hl-number" > 8080< / span > _cfg {
< strong class = "hl-keyword" > enum< / strong > mdi_pin_ctl pin;
< strong class = "hl-keyword" > union< / strong > {
< strong class = "hl-keyword" > enum< / strong > mdi_x8_seq x8;
< strong class = "hl-keyword" > enum< / strong > mdi_x16_seq x16;
} seq;
};< / pre > < / div >
< / section > < section class = "- topic/section section" id = "topic_udm_2jy_2dc__dbi-bus" data-ofbid = "topic_udm_2jy_2dc__dbi-bus" > < h3 class = "- topic/title title sectiontitle" > DBI Bus 的格式定义< / h3 >
< div class = "- topic/p p" data-ofbid = "d264557e353__20250121171732" > 属于 MPP VIN Dev 层的接口，定义了 DBI
BUS
相关的数据格式：< pre class = "+ topic/pre pr-d/codeblock pre codeblock language-c" id = "topic_udm_2jy_2dc__codeblock_dbx_d2y_2dc" data-ofbid = "topic_udm_2jy_2dc__codeblock_dbx_d2y_2dc" > < strong class = "hl-keyword" > enum< / strong > mdi_bus_mode {
MDI_BUS_MODE_< span class = "hl-number" > 8080< / span > = < span class = "hl-number" > 0< / span > ,
MDI_BUS_MODE_< span class = "hl-number" > 6800< / span > = < span class = "hl-number" > 1< / span > ,
MDI_BUS_MODE_SPI = < span class = "hl-number" > 2< / span >
};
< strong class = "hl-keyword" > enum< / strong > mdi_spi_disp_fmt {
MDI_SPI_DISP_FMT_RGB888 = < span class = "hl-number" > 0< / span > ,
MDI_SPI_DISP_FMT_RGB565 = < span class = "hl-number" > 1< / span > ,
MDI_SPI_DISP_FMT_RGB888_< span class = "hl-number" > 2< / span > = < span class = "hl-number" > 2< / span > , < em class = "hl-comment" > // only for 2SDA< / em >
};
< strong class = "hl-keyword" > enum< / strong > mdi_spi_rd_fmt {
MDI_SPI_RD_FMT_< span class = "hl-number" > 8< / span > BIT = < span class = "hl-number" > 0< / span > ,
MDI_SPI_RD_FMT_< span class = "hl-number" > 24< / span > BIT = < span class = "hl-number" > 1< / span > ,
MDI_SPI_RD_FMT_< span class = "hl-number" > 32< / span > BIT = < span class = "hl-number" > 2< / span >
};
< strong class = "hl-keyword" > enum< / strong > mdi_spi_mode {
MDI_SPI_MODE_< span class = "hl-number" > 3< / span > WIRE = < span class = "hl-number" > 0< / span > ,
MDI_SPI_MODE_< span class = "hl-number" > 4< / span > WIRE = < span class = "hl-number" > 1< / span > ,
MDI_SPI_MODE_< span class = "hl-number" > 2< / span > SDA = < span class = "hl-number" > 2< / span > ,
MDI_SPI_MODE_< span class = "hl-number" > 4< / span > SDA = < span class = "hl-number" > 3< / span >
};
< strong class = "hl-keyword" > enum< / strong > mdi_x16_seq {
MDI_X16_SEQ_RGB888 = < span class = "hl-number" > 0< / span > ,
MDI_X16_SEQ_RGBX = < span class = "hl-number" > 1< / span > ,
MDI_X16_SEQ_RGBX666 = < span class = "hl-number" > 2< / span > ,
MDI_X16_SEQ_XRGB666 = < span class = "hl-number" > 3< / span > ,
MDI_X16_SEQ_RGB565 = < span class = "hl-number" > 4< / span >
};
< strong class = "hl-keyword" > enum< / strong > mdi_x8_seq {
MDI_X8_SEQ_RGB888 = < span class = "hl-number" > 0< / span > ,
MDI_X8_SEQ_RGB565 = < span class = "hl-number" > 1< / span >
};
< strong class = "hl-keyword" > enum< / strong > mdi_dat_endian {
MDI_DAT_ENDIAN_LOW_< span class = "hl-number" > 8< / span > = < span class = "hl-number" > 0< / span > ,
MDI_DAT_ENDIAN_HIGH_< span class = "hl-number" > 8< / span > = < span class = "hl-number" > 1< / span >
};
< strong class = "hl-keyword" > enum< / strong > mdi_pin_ctl {
MDI_PIN_CTL_X8 = < span class = "hl-number" > 0< / span > ,
MDI_PIN_CTL_X16 = < span class = "hl-number" > 1< / span >
};< / pre > < / div > < / section > < section class = "- topic/section section" id = "topic_udm_2jy_2dc__id9" data-ofbid = "topic_udm_2jy_2dc__id9" > < h3 class = "- topic/title title sectiontitle" > DBI 命令的回调信息< / h3 >
< div class = "- topic/div div" >
< div class = "- topic/p p" data-ofbid = "d264557e364__20250121171732" > 属于 MPP VIN Dev 层的接口，定义了一个 DBI
命令对应的数据内容及处理函数：< pre class = "+ topic/pre pr-d/codeblock pre codeblock language-c" id = "topic_udm_2jy_2dc__codeblock_nvn_22y_2dc" data-ofbid = "topic_udm_2jy_2dc__codeblock_nvn_22y_2dc" > < strong class = "hl-keyword" > struct< / strong > aic_dbi_cmd {
u8 code;
u8 data_len;
< strong class = "hl-keyword" > char< / strong > name[< span class = "hl-number" > 16< / span > ];
< strong class = "hl-keyword" > int< / strong > (*proc)(u8 code, u8 *data);
};< / pre > < / div >
< / div >
< / section > < section class = "- topic/section section" id = "topic_udm_2jy_2dc__section_spl_1ry_2dc" data-ofbid = "topic_udm_2jy_2dc__section_spl_1ry_2dc" > < h3 class = "- topic/title title sectiontitle" > struct aic_mdi< / h3 >
< div class = "- topic/p p" data-ofbid = "d264557e375__20250121171732" > 属于 Driver 层内部接口，定义了 MDI 控制器的设备管理信息：
< pre class = "+ topic/pre pr-d/codeblock pre codeblock language-c" id = "topic_udm_2jy_2dc__codeblock_tt2_wdy_2dc" data-ofbid = "topic_udm_2jy_2dc__codeblock_tt2_wdy_2dc" > < strong class = "hl-keyword" > struct< / strong > aic_mdi {
< strong class = "hl-keyword" > enum< / strong > aic_mdi_status status;
< strong class = "hl-keyword" > struct< / strong > aic_mdi_cfg cfg; < em class = "hl-comment" > /* The configuration of MDI HW */< / em >
< strong class = "hl-keyword" > unsigned< / strong > < strong class = "hl-keyword" > int< / strong > busy_pin_g;
< strong class = "hl-keyword" > unsigned< / strong > < strong class = "hl-keyword" > int< / strong > busy_pin_p;
bdi_cmd_cb cmd_cb;
< em class = "hl-comment" > /* Videobuf */< / em >
< strong class = "hl-keyword" > struct< / strong > vb_queue queue;
< strong class = "hl-keyword" > struct< / strong > list_head active_list;
aicos_mutex_t active_lock; < em class = "hl-comment" > /* lock of active buf list */< / em >
< strong class = "hl-keyword" > unsigned< / strong > < strong class = "hl-keyword" > int< / strong > hw_used_cnt;
< strong class = "hl-keyword" > unsigned< / strong > < strong class = "hl-keyword" > int< / strong > sequence;
< strong class = "hl-keyword" > unsigned< / strong > < strong class = "hl-keyword" > int< / strong > streaming;
aicos_mutex_t lock;
};< / pre > < / div >
< / section > < / div > < / article > < article class = "- topic/topic topic nested1" aria-labelledby = "ariaid-title5" xml:lang = "zh-CN" lang = "zh-CN" id = "topic_alp_zjy_2dc" > < span class = "edit-link" style = "font-size:12px; opacity:0.6; text-align:right; vertical-align:middle" > < a target = "_blank" href = "http://172.16.35.88/tasks/jdssno1uvvbf2mltu9kb9v3if05d5gopuakboe8hlud18rma/edit/F:/aicdita/aicdita-cn/topics/sdk/mdi/mdi_design.dita" > Edit online< / a > < / span > < h2 class = "- topic/title title topictitle2" id = "ariaid-title5" > MPP VIN Dev 层接口设计< / h2 > < div class = "- topic/body body" > < div class = "table-container" > < table class = "- topic/table table frame-all" id = "topic_alp_zjy_2dc__table_w3c_ldy_2dc" data-ofbid = "topic_alp_zjy_2dc__table_w3c_ldy_2dc" 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" > mpp_vin_dev_init< / span > < / caption > < colgroup > < col style = "width:16.666666666666664%" / > < col style = "width:83.33333333333334%" / > < / colgroup > < thead class = "- topic/thead thead" > < tr class = "- topic/row" > < th class = "- topic/entry entry colsep-1 rowsep-1" id = "topic_alp_zjy_2dc__table_w3c_ldy_2dc__entry__1" > 函数原型< / th > < th class = "- topic/entry entry colsep-0 rowsep-1" id = "topic_alp_zjy_2dc__table_w3c_ldy_2dc__entry__2" > int mpp_vin_dev_init(u32 cnt, struct aic_mdi_cfg
*cfg)< / th > < / tr > < / thead > < tbody class = "- topic/tbody tbody" > < tr class = "- topic/row" > < td class = "- topic/entry entry colsep-1 rowsep-1" headers = "topic_alp_zjy_2dc__table_w3c_ldy_2dc__entry__1" > 功能说明< / td > < td class = "- topic/entry entry colsep-0 rowsep-1" headers = "topic_alp_zjy_2dc__table_w3c_ldy_2dc__entry__2" > 完成 MDI VIN Dev 的状态初始化等< / td > < / tr > < tr class = "- topic/row" > < td class = "- topic/entry entry colsep-1 rowsep-1" headers = "topic_alp_zjy_2dc__table_w3c_ldy_2dc__entry__1" > 参数定义< / td > < td class = "- topic/entry entry colsep-0 rowsep-1" headers = "topic_alp_zjy_2dc__table_w3c_ldy_2dc__entry__2" >
< div class = "- topic/div div" >
< div class = "- topic/div div" > cnt - 指定接收多少帧图像，传 0 表示数量不限< / div >
< div class = "- topic/div div" > cfg - 配置 DBI Bus 的格式信息，如 8080、X16/X8 等< / div >
< / div >
< / td > < / tr > < tr class = "- topic/row" > < td class = "- topic/entry entry colsep-1 rowsep-1" headers = "topic_alp_zjy_2dc__table_w3c_ldy_2dc__entry__1" > 返回值< / td > < td class = "- topic/entry entry colsep-0 rowsep-1" headers = "topic_alp_zjy_2dc__table_w3c_ldy_2dc__entry__2" > 0， ； < 0， < / td > < / tr > < tr class = "- topic/row" > < td class = "- topic/entry entry colsep-1 rowsep-0" headers = "topic_alp_zjy_2dc__table_w3c_ldy_2dc__entry__1" > 注意事项< / td > < td class = "- topic/entry entry colsep-0 rowsep-0" headers = "topic_alp_zjy_2dc__table_w3c_ldy_2dc__entry__2" > -< / td > < / tr > < / tbody > < / table > < / div > < div class = "table-container" > < table class = "- topic/table table frame-all" id = "topic_alp_zjy_2dc__table_x3c_ldy_2dc" data-ofbid = "topic_alp_zjy_2dc__table_x3c_ldy_2dc" 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" > mpp_vin_dev_deinit< / span > < / caption > < colgroup > < col style = "width:16.666666666666664%" / > < col style = "width:83.33333333333334%" / > < / colgroup > < thead class = "- topic/thead thead" > < tr class = "- topic/row" > < th class = "- topic/entry entry colsep-1 rowsep-1" id = "topic_alp_zjy_2dc__table_x3c_ldy_2dc__entry__1" > 函数原型< / th > < th class = "- topic/entry entry colsep-0 rowsep-1" id = "topic_alp_zjy_2dc__table_x3c_ldy_2dc__entry__2" > void mpp_vin_dev_deinit(void)< / th > < / tr > < / thead > < tbody class = "- topic/tbody tbody" > < tr class = "- topic/row" > < td class = "- topic/entry entry colsep-1 rowsep-1" headers = "topic_alp_zjy_2dc__table_x3c_ldy_2dc__entry__1" > 功能说明< / td > < td class = "- topic/entry entry colsep-0 rowsep-1" headers = "topic_alp_zjy_2dc__table_x3c_ldy_2dc__entry__2" > MDI VIN Dev 的资源释放< / td > < / tr > < tr class = "- topic/row" > < td class = "- topic/entry entry colsep-1 rowsep-1" headers = "topic_alp_zjy_2dc__table_x3c_ldy_2dc__entry__1" > 参数定义< / td > < td class = "- topic/entry entry colsep-0 rowsep-1" headers = "topic_alp_zjy_2dc__table_x3c_ldy_2dc__entry__2" > 无< / td > < / tr > < tr class = "- topic/row" > < td class = "- topic/entry entry colsep-1 rowsep-1" headers = "topic_alp_zjy_2dc__table_x3c_ldy_2dc__entry__1" > 返回值< / td > < td class = "- topic/entry entry colsep-0 rowsep-1" headers = "topic_alp_zjy_2dc__table_x3c_ldy_2dc__entry__2" > 无< / td > < / tr > < tr class = "- topic/row" > < td class = "- topic/entry entry colsep-1 rowsep-0" headers = "topic_alp_zjy_2dc__table_x3c_ldy_2dc__entry__1" > 注意事项< / td > < td class = "- topic/entry entry colsep-0 rowsep-0" headers = "topic_alp_zjy_2dc__table_x3c_ldy_2dc__entry__2" > - < / td > < / tr > < / tbody > < / table > < / div > < / div > < / article > < article class = "- topic/topic topic nested1" aria-labelledby = "ariaid-title6" xml:lang = "zh-CN" lang = "zh-CN" id = "topic_vcy_qky_2dc" > < span class = "edit-link" style = "font-size:12px; opacity:0.6; text-align:right; vertical-align:middle" > < a target = "_blank" href = "http://172.16.35.88/tasks/jdssno1uvvbf2mltu9kb9v3if05d5gopuakboe8hlud18rma/edit/F:/aicdita/aicdita-cn/topics/sdk/mdi/mdi_design.dita" > Edit online< / a > < / span > < h2 class = "- topic/title title topictitle2" id = "ariaid-title6" > Driver 层接口设计< / h2 > < div class = "- topic/body body" > < div class = "table-container" > < table class = "- topic/table table frame-all" id = "topic_vcy_qky_2dc__table_y3c_ldy_2dc" data-ofbid = "topic_vcy_qky_2dc__table_y3c_ldy_2dc" 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_mdi_open< / span > < / caption > < colgroup > < col style = "width:16.666666666666664%" / > < col style = "width:83.33333333333334%" / > < / colgroup > < thead class = "- topic/thead thead" > < tr class = "- topic/row" > < th class = "- topic/entry entry colsep-1 rowsep-1" id = "topic_vcy_qky_2dc__table_y3c_ldy_2dc__entry__1" > 函数原型< / th > < th class = "- topic/entry entry colsep-0 rowsep-1" id = "topic_vcy_qky_2dc__table_y3c_ldy_2dc__entry__2" > int aic_mdi_o
< div class = "- topic/div div" >
< div class = "- topic/div div" > cb - 当收到 DBI 命令时，处理 DBI 命令的回调函数< / div >
< div class = "- topic/div div" > cfg - 配置 DBI Bus 的格式信息，如 8080、X16/X8 等< / div >
< / div >
< / td > < / tr > < tr class = "- topic/row" > < td class = "- topic/entry entry colsep-1 rowsep-1" headers = "topic_vcy_qky_2dc__table_y3c_ldy_2dc__entry__1" > 返回值< / td > < td class = "- topic/entry entry colsep-0 rowsep-1" headers = "topic_vcy_qky_2dc__table_y3c_ldy_2dc__entry__2" > 0， ； < 0， < / td > < / tr > < tr class = "- topic/row" > < td class = "- topic/entry entry colsep-1 rowsep-0" headers = "topic_vcy_qky_2dc__table_y3c_ldy_2dc__entry__1" > 注意事项< / td > < td class = "- topic/entry entry colsep-0 rowsep-0" headers = "topic_vcy_qky_2dc__table_y3c_ldy_2dc__entry__2" > -< / td > < / tr > < / tbody > < / table > < / div > < div class = "table-container" > < table class = "- topic/table table frame-all" id = "topic_vcy_qky_2dc__table_z3c_ldy_2dc" data-ofbid = "topic_vcy_qky_2dc__table_z3c_ldy_2dc" 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_mdi_close< / span > < / caption > < colgroup > < col style = "width:16.666666666666664%" / > < col style = "width:83.33333333333334%" / > < / colgroup > < thead class = "- topic/thead thead" > < tr class = "- topic/row" > < th class = "- topic/entry entry colsep-1 rowsep-1" id = "topic_vcy_qky_2dc__table_z3c_ldy_2dc__entry__1" > 函数原型< / th > < th class = "- topic/entry entry colsep-0 rowsep-1" id = "topic_vcy_qky_2dc__table_z3c_ldy_2dc__entry__2" > int aic_mdi_close(void)< / th > < / tr > < / thead > < tbody class = "- topic/tbody tbody" > < tr class = "- topic/row" > < td class = "- topic/entry entry colsep-1 rowsep-1" headers = "topic_vcy_qky_2dc__table_z3c_ldy_2dc__entry__1" > 功能说明< / td > < td class = "- topic/entry entry colsep-0 rowsep-1" headers = "topic_vcy_qky_2dc__table_z3c_ldy_2dc__entry__2" > 关闭时钟、关闭 MDI 控制器< / td > < / tr > < tr class = "- topic/row" > < td class = "- topic/entry entry colsep-1 rowsep-1" headers = "topic_vcy_qky_2dc__table_z3c_ldy_2dc__entry__1" > 参数定义< / td > < td class = "- topic/entry entry colsep-0 rowsep-1" headers = "topic_vcy_qky_2dc__table_z3c_ldy_2dc__entry__2" > 无< / td > < / tr > < tr class = "- topic/row" > < td class = "- topic/entry entry colsep-1 rowsep-1" headers = "topic_vcy_qky_2dc__table_z3c_ldy_2dc__entry__1" > 返回值< / td > < td class = "- topic/entry entry colsep-0 rowsep-1" headers = "topic_vcy_qky_2dc__table_z3c_ldy_2dc__entry__2" > 0， ； < 0， < / td > < / tr > < tr class = "- topic/row" > < td class = "- topic/entry entry colsep-1 rowsep-0" headers = "topic_vcy_qky_2dc__table_z3c_ldy_2dc__entry__1" > 注意事项< / td > < td class = "- topic/entry entry colsep-0 rowsep-0" headers = "topic_vcy_qky_2dc__table_z3c_ldy_2dc__entry__2" > -< / td > < / tr > < / tbody > < / table > < / div > < div class = "table-container" > < table class = "- topic/table table frame-all" id = "topic_vcy_qky_2dc__table_ajc_ldy_2dc" data-ofbid = "topic_vcy_qky_2dc__table_ajc_ldy_2dc" 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_mdi_in_fmt_set< / span > < / caption > < colgroup > < col style = "width:16.666666666666664%" / > < col style = "width:83.33333333333334%" / > < / colgroup > < thead class = "- topic/thead thead" > < tr class = "- topic/row" > < th class = "- topic/entry entry colsep-1 rowsep-1" id = "topic_vcy_qky_2dc__table_ajc_ldy_2dc__entry__1" > 函数原型< / th > < th class = "- topic/entry entry colsep-0 rowsep-1" id = "topic_vcy_qky_2dc__table_ajc_ldy_2dc__entry__2" > int aic_mdi_in_fmt_set(enum dbi_mcu_if fmt, u8 flag)< / th > < / tr > < / thead > < tbody class = "- topic/tbody tbody" > < tr class = "- topic/row" > < td class = "- topic/entry entry colsep-1 rowsep-1" headers = "topic_vcy_qky_2dc__table_ajc_ldy_2dc__entry__1" > 功能说明< / td > < td class = "- topic/entry entry colsep-0 rowsep-1" headers = "topic_vcy_qky_2dc__table_ajc_ldy_2dc__entry__2" > 设置 MDI 的输入视频格式< / td > < / tr > < tr class = "- topic/row" > < td class = "- topic/entry entry colsep-1 rowsep-1" headers = "topic_vcy_qky_2dc__table_ajc_ldy_2dc__entry__1" > 参数<EFBFBD>
< div class = "- topic/div div" >
< div class = "- topic/div div" > fmt - MCU 接口的位宽格式< / div >
< div class = "- topic/div div" > flag - 为了区分一些特殊格式，用此参数作为标记< / div >
< / div >
< / td > < / tr > < tr class = "- topic/row" > < td class = "- topic/entry entry colsep-1 rowsep-1" headers = "topic_vcy_qky_2dc__table_ajc_ldy_2dc__entry__1" > 返回值< / td > < td class = "- topic/entry entry colsep-0 rowsep-1" headers = "topic_vcy_qky_2dc__table_ajc_ldy_2dc__entry__2" > 0， ； < 0， < / td > < / tr > < tr class = "- topic/row" > < td class = "- topic/entry entry colsep-1 rowsep-0" headers = "topic_vcy_qky_2dc__table_ajc_ldy_2dc__entry__1" > 注意事项< / td > < td class = "- topic/entry entry colsep-0 rowsep-0" headers = "topic_vcy_qky_2dc__table_ajc_ldy_2dc__entry__2" > -< / td > < / tr > < / tbody > < / table > < / div > < div class = "table-container" > < table class = "- topic/table table frame-all" id = "topic_vcy_qky_2dc__table_bjc_ldy_2dc" data-ofbid = "topic_vcy_qky_2dc__table_bjc_ldy_2dc" 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_mdi_out_pixel_set< / span > < / caption > < colgroup > < col style = "width:16.666666666666664%" / > < col style = "width:83.33333333333334%" / > < / colgroup > < thead class = "- topic/thead thead" > < tr class = "- topic/row" > < th class = "- topic/entry entry colsep-1 rowsep-1" id = "topic_vcy_qky_2dc__table_bjc_ldy_2dc__entry__1" > 函数原型< / th > < th class = "- topic/entry entry colsep-0 rowsep-1" id = "topic_vcy_qky_2dc__table_bjc_ldy_2dc__entry__2" > void aic_mdi_out_pixel_set(u32 stride, u32 imagesize)< / th > < / tr > < / thead > < tbody class = "- topic/tbody tbody" > < tr class = "- topic/row" > < td class = "- topic/entry entry colsep-1 rowsep-1" headers = "topic_vcy_qky_2dc__table_bjc_ldy_2dc__entry__1" > 功能说明< / td > < td class = "- topic/entry entry colsep-0 rowsep-1" headers = "topic_vcy_qky_2dc__table_bjc_ldy_2dc__entry__2" > 设置 MDI 的输出图像格式< / td > < / tr > < tr class = "- topic/row" > < td class = "- topic/entry entry colsep-1 rowsep-1" headers = "topic_vcy_qky_2dc__table_bjc_ldy_2dc__entry__1" > 参数定义< / td > < td class = "- topic/entry entry colsep-0 rowsep-1" headers = "topic_vcy_qky_2dc__table_bjc_ldy_2dc__entry__2" >
< div class = "- topic/div div" >
< div class = "- topic/div div" > stride - 一行图像数据需要占用的字节个数< / div >
< div class = "- topic/div div" > imagesize - 一帧图像数据需要占用的字节个数< / div >
< / div >
< / td > < / tr > < tr class = "- topic/row" > < td class = "- topic/entry entry colsep-1 rowsep-1" headers = "topic_vcy_qky_2dc__table_bjc_ldy_2dc__entry__1" > 返回值< / td > < td class = "- topic/entry entry colsep-0 rowsep-1" headers = "topic_vcy_qky_2dc__table_bjc_ldy_2dc__entry__2" > 无< / td > < / tr > < tr class = "- topic/row" > < td class = "- topic/entry entry colsep-1 rowsep-0" headers = "topic_vcy_qky_2dc__table_bjc_ldy_2dc__entry__1" > 注意事项< / td > < td class = "- topic/entry entry colsep-0 rowsep-0" headers = "topic_vcy_qky_2dc__table_bjc_ldy_2dc__entry__2" > -< / td > < / tr > < / tbody > < / table > < / div > < div class = "table-container" > < table class = "- topic/table table frame-all" id = "topic_vcy_qky_2dc__table_cjc_ldy_2dc" data-ofbid = "topic_vcy_qky_2dc__table_cjc_ldy_2dc" 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_mdi_stream_on< / span > < / caption > < colgroup > < col style = "width:16.666666666666664%" / > < col style = "width:83.33333333333334%" / > < / colgroup > < thead class = "- topic/thead thead" > < tr class = "- topic/row" > < th class = "- topic/entry entry colsep-1 rowsep-1" id = "topic_vcy_qky_2dc__table_cjc_ldy_2dc__entry__1" > 函数原型< / th > < th class = "- topic/entry entry colsep-0 rowsep-1" id = "topic_vcy_qky_2dc__table_cjc_ldy_2dc__entry__2" > int aic_mdi_stream_on(void)< / th > < / tr > < / thead > < tbody class = "- topic/tbody tbody" > < tr class = "- topic/row" > < td class = "- topic/entry entry colsep-1 rowsep-1" headers = "topic_vcy_qky_2dc__table_cjc_ldy_2dc__entry__1" > 功能说明< / td > < td class = "- topic/entry entry colsep-0 rowsep-1" headers = "topic_vcy_qky_2dc__table_cjc_ldy_2dc__entry__2" > 启动视频流< / td > < / tr > < tr class = "- topic/row" > < td class = "- topic/entry entry colsep-1 rowsep-1" headers = "topic_vcy_qky_2dc__table_cjc_ldy_2dc__entry__1" > 参数定义< / td > < td class = "- topic/entry entry colsep-0 rowsep-1" headers = "topic_vcy_qky_2dc__table_cjc_ldy_2dc__entry__2" > 无< / td > < / tr > < tr class = "- topic/row" > < td class = "- topic/entry entry colsep-1 rowsep-1" headers = "topic_vcy_qky_2dc__table_cjc_ldy_2dc__entry__1" > 返回值< / td > < td class = "- topic/entry entry colsep-0 rowsep-1" headers = "topic_vcy_qky_2dc__table_cjc_ldy_2dc__entry__2" > 0， ； < 0， < / td > < / tr > < tr class = "- topic/row" > < td class = "- topic/entry entry colsep-1 rowsep-0" headers = "topic_vcy_qky_2dc__table_cjc_ldy_2dc__entry__1" > 注意事项< / td > < td class = "- topic/entry entry colsep-0 rowsep-0" headers = "topic_vcy_qky_2dc__table_cjc_ldy_2dc__entry__2" > -< / td > < / tr > < / tbody > < / table > < / div > < div class = "table-container" > < table class = "- topic/table table frame-all" id = "topic_vcy_qky_2dc__table_djc_ldy_2dc" data-ofbid = "topic_vcy_qky_2dc__table_djc_ldy_2dc" 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_mdi_stream_off< / span > < / caption > < colgroup > < col style = "width:16.666666666666664%" / > < col style = "width:83.33333333333334%" / > < / colgroup > < thead class = "- topic/thead thead" > < tr class = "- topic/row" > < th class = "- topic/entry entry colsep-1 rowsep-1" id = "topic_vcy_qky_2dc__table_djc_ldy_2dc__entry__1" > 函数原型< / th > < th class = "- topic/entry entry colsep-0 rowsep-1" id = "topic_vcy_qky_2dc__table_djc_ldy_2dc__entry__2" > int aic_mdi_stream_off(void)< / th > < / tr > < / thead > < tbody class = "- topic/tbody tbody" > < tr class = "- topic/row" > < td class = "- topic/entry entry colsep-1 rowsep-1" headers = "topic_vcy_qky_2dc__table_djc_ldy_2dc__entry__1" > 功能说明< / td > < td class = "- topic/entry entry colsep-0 rowsep-1" headers = "topic_vcy_qky_2dc__table_djc_ldy_2dc__entry__2" > 关闭视频流< / td > < / tr > < tr class = "- topic/row" > < td class = "- topic/entry entry colsep-1 rowsep-1" headers = "topic_vcy_qky_2dc__table_djc_ldy_2dc__entry__1" > 参数定义< / td > < td class = "- topic/entry entry colsep-0 rowsep-1" headers = "topic_vc
*vbuf)< / th > < / tr > < / thead > < tbody class = "- topic/tbody tbody" > < tr class = "- topic/row" > < td class = "- topic/entry entry colsep-1 rowsep-1" headers = "topic_vcy_qky_2dc__table_ejc_ldy_2dc__entry__1" > 功能说明< / td > < td class = "- topic/entry entry colsep-0 rowsep-1" headers = "topic_vcy_qky_2dc__table_ejc_ldy_2dc__entry__2" > 按照给定的 Video Buf 配置信息从内存池中申请 Buf< / td > < / tr > < tr class = "- topic/row" > < td class = "- topic/entry entry colsep-1 rowsep-1" headers = "topic_vcy_qky_2dc__table_ejc_ldy_2dc__entry__1" > 参数定义< / td > < td class = "- topic/entry entry colsep-0 rowsep-1" headers = "topic_vcy_qky_2dc__table_ejc_ldy_2dc__entry__2" >
< div class = "- topic/div div" >
< div class = "- topic/div div" > buf - 指向内存池的指针< / div >
< div class = "- topic/div div" > size - 内存池的总大小< / div >
< div class = "- topic/div div" > vbuf - Video Buf 的配置信息< / div >
< / div >
< / td > < / tr > < tr class = "- topic/row" > < td class = "- topic/entry entry colsep-1 rowsep-1" headers = "topic_vcy_qky_2dc__table_ejc_ldy_2dc__entry__1" > 返回值< / td > < td class = "- topic/entry entry colsep-0 rowsep-1" headers = "topic_vcy_qky_2dc__table_ejc_ldy_2dc__entry__2" > 0， ； < 0， < / td > < / tr > < tr class = "- topic/row" > < td class = "- topic/entry entry colsep-1 rowsep-0" headers = "topic_vcy_qky_2dc__table_ejc_ldy_2dc__entry__1" > 注意事项< / td > < td class = "- topic/entry entry colsep-0 rowsep-0" headers = "topic_vcy_qky_2dc__table_ejc_ldy_2dc__entry__2" > -< / td > < / tr > < / tbody > < / table > < / div > < div class = "table-container" > < table class = "- topic/table table frame-all" id = "topic_vcy_qky_2dc__table_fjc_ldy_2dc" data-ofbid = "topic_vcy_qky_2dc__table_fjc_ldy_2dc" 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" > aic_mdi_q_buf< / span > < / caption > < colgroup > < col style = "width:16.666666666666664%" / > < col style = "width:83.33333333333334%" / > < / colgroup > < thead class = "- topic/thead thead" > < tr class = "- topic/row" > < th class = "- topic/entry entry colsep-1 rowsep-1" id = "topic_vcy_qky_2dc__table_fjc_ldy_2dc__entry__1" > 函数原型< / th > < th class = "- topic/entry entry colsep-0 rowsep-1" id = "topic_vcy_qky_2dc__table_fjc_ldy_2dc__entry__2" > int aic_mdi_q_buf(u32 index)< / th > < / tr > < / thead > < tbody class = "- topic/tbody tbody" > < tr class = "- topic/row" > < td class = "- topic/entry entry colsep-1 rowsep-1" headers = "topic_vcy_qky_2dc__table_fjc_ldy_2dc__entry__1" > 功能说明< / td > < td class = "- topic/entry entry colsep-0 rowsep-1" headers = "topic_vcy_qky_2dc__table_fjc_ldy_2dc__entry__2" > 释放指定 index 的 Buf 进入空闲队列（ ） < / td > < / tr > < tr class = "- topic/row" > < td class = "- topic/entry entry colsep-1 rowsep-1" headers = "topic_vcy_qky_2dc__table_fjc_ldy_2dc__entry__1" > 参数定义< / td > < td class = "- topic/entry entry colsep-0 rowsep-1" headers = "topic_vcy_qky_2dc__table_fjc_ldy_2dc__entry__2" > index - Buf 的索引号< / td > < / tr > < tr class = "- topic/row" > < td class = "- topic/entry entry colsep-1 rowsep-1" headers = "topic_vcy_qky_2dc__table_fjc_ldy_2dc__entry__1" > 返回值< / td > < td class = "- topic/entry entry colsep-0 rowsep-1" headers = "topic_vcy_qky_2dc__table_fjc_ldy_2dc__entry__2" > 0， ； < 0， < / td > < / tr > < tr class = "- topic/row" > < td class = "- topic/entry entry colsep-1 rowsep-0" headers = "topic_vcy_qky_2dc__table_fjc_ldy_2dc__entry__1" > 注意事项< / td > < td class = "- topic/entry entry colsep-0 rowsep-0" headers = "topic_vcy_qky_2dc__table_fjc_ldy_2dc__entry__2" > -< / td > < / tr > < / tbody > < / table > < / div > < div class = "table-container" > < table class = "- topic/table table frame-all" id = "topic_vcy_qky_2dc__table_gjc_ldy_2dc" data-ofbid = "topic_vcy_qky_2dc__table_gjc_ldy_2dc" 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" > aic_mdi_dq_buf< / span > < / caption > < colgroup > < col style = "width:16.666666666666664%" / > < col style = "width:83.33333333333334%" / > < / colgroup > < thead class = "- topic/thead thead" > < tr class = "- topic/row" > < th class = "- topic/entry entry colsep-1 rowsep-1" id = "topic_vcy_qky_2dc__table_gjc_ldy_2dc__entry__1" > 函数原型< / th > < th class = "- topic/entry entry colsep-0 rowsep-1" id = "topic_vcy_qky_2dc__table_gjc_ldy_2dc__entry__2" > int aic_mdi_dq_buf(u32 *pindex)< / th > < / tr > < / thead > < tbody class = "- topic/tbody tbody" > < tr class = "- topic/row" > < td class = "- topic/entry entry colsep-1 rowsep-1" headers = "topic_vcy_qky_2dc__table_gjc_ldy_2dc__entry__1" > 功能说明< / td > < td class = "- topic/entry entry colsep-0 rowsep-1" headers = "topic_vcy_qky_2dc__table_gjc_ldy_2dc__entry__2" > 从 DVP 处理完成后的队列（ ） < / td > < / tr > < tr class = "- topic/row" > < td class = "- topic/entry entry colsep-1 rowsep-1"
< span class = "+ topic/ph sw-d/filepath ph filepath" > bsp/examples/test-mdi/test_mdi.c< / span > ： < / p > < pre class = "+ topic/pre pr-d/codeblock pre codeblock language-c" id = "topic_rxk_gry_2dc__codeblock_r5c_ydy_2dc" data-ofbid = "topic_rxk_gry_2dc__codeblock_r5c_ydy_2dc" > < strong class = "hl-keyword" > static< / strong > < strong class = "hl-keyword" > const< / strong > < strong class = "hl-keyword" > char< / strong > sopts[] = < span class = "hl-string" > "c:h"< / span > ;
< strong class = "hl-keyword" > static< / strong > < strong class = "hl-keyword" > const< / strong > < strong class = "hl-keyword" > struct< / strong > option lopts[] = {
{< span class = "hl-string" > "count"< / span > , required_argument, NULL, < span class = "hl-string" > 'c'< / span > },
{< span class = "hl-string" > "help"< / span > , no_argument, NULL, < span class = "hl-string" > 'h'< / span > },
{< span class = "hl-number" > 0< / span > , < span class = "hl-number" > 0< / span > , < span class = "hl-number" > 0< / span > , < span class = "hl-number" > 0< / span > }
};
< em class = "hl-comment" > /* Functions */< / em >
< strong class = "hl-keyword" > static< / strong > < strong class = "hl-keyword" > void< / strong > usage(< strong class = "hl-keyword" > char< / strong > *program)
{
printf(< span class = "hl-string" > "Compile time: %s %s\n"< / span > , __DATE__, __TIME__);
printf(< span class = "hl-string" > "Usage: %s [options]: \n"< / span > , program);
printf(< span class = "hl-string" > "\t -c, --count\t\tthe number of capture frame \n"< / span > );
printf(< span class = "hl-string" > "\t -h, --help \n"< / span > );
printf(< span class = "hl-string" > "\n"< / span > );
printf(< span class = "hl-string" > "Example: %s -c 1\n"< / span > , program);
}
< strong class = "hl-keyword" > static< / strong > < strong class = "hl-keyword" > long< / strong > < strong class = "hl-keyword" > long< / strong > < strong class = "hl-keyword" > int< / strong > str2int(< strong class = "hl-keyword" > char< / strong > *_str)
{
< strong class = "hl-keyword" > if< / strong > (_str == NULL) {
pr_err(< span class = "hl-string" > "The string is empty!\n"< / span > );
< strong class = "hl-keyword" > return< / strong > -< span class = "hl-number" > 1< / span > ;
}
< strong class = "hl-keyword" > if< / strong > (strncmp(_str, < span class = "hl-string" > "0x"< / span > , < span class = "hl-number" > 2< / span > ))
< strong class = "hl-keyword" > return< / strong > atoi(_str);
< strong class = "hl-keyword" > else< / strong >
< strong class = "hl-keyword" > return< / strong > strtoll(_str, NULL, < span class = "hl-number" > 16< / span > );
}
#< span class = "hl-directive" > define< / span > MDI_USE_< span class = "hl-number" > 8080< / span > _X16
< em class = "hl-comment" > // #define MDI_USE_8080_X8< / em >
< em class = "hl-comment" > // #define MDI_USE_6800_X16< / em >
< em class = "hl-comment" > // #define MDI_USE_6800_X8< / em >
< em class = "hl-comment" > // #define MDI_USE_SPI< / em >
< em class = "hl-comment" > /* TODO: Should parse the input format from three GPIO
*
* GPIO1 GPIO2 GPIO3 Bus Mode
* ----- ----- ----- ---------
* 0 0 0 8080 X16
* 0 0 1 8080 X8
* 0 1 0 6800 X16
* 0 1 1 6800 X8
* 1 0 0 SPI 3-Wire
* 1 0 1 SPI 4-Wire
* 1 1 0 SPI 2-SDA
* 1 1 1 SPI 4-SDA
*/< / em >
< strong class = "hl-keyword" > static< / strong > < strong class = "hl-keyword" > int< / strong > aic_mdi_bus_fmt_load(< strong class = "hl-keyword" > struct< / strong > aic_mdi_cfg *cfg)
{
< strong class = "hl-keyword" > char< / strong > *bus_mode[] = {< span class = "hl-string" > "8080"< / span > , < span class = "hl-string" > "6800"< / span > , < span class = "hl-string" > "SPI"< / span > };
#ifdef MDI_USE_SPI
< strong class = "hl-keyword" > char< / strong > *spi_mode[] = {< span class = "hl-string" > "3-Wire"< / span > , < span class = "hl-string" > "4-Wire"< / span > , < span class = "hl-string" > "2-SDA"< / span > , < span class = "hl-string" > "4-SDA"< / span > };
< em class = "hl-comment" > /* For SPI bus */< / em >
cfg-> bus_mode = MDI_BUS_MODE_SPI;
cfg-> big_endian = MDI_DAT_ENDIAN_HIGH_< span class = "hl-number" > 8< / span > ;
cfg-> bus_spi.mode = MDI_SPI_MODE_< span class = "hl-number" > 4< / span > SDA;
printf(< span class = "hl-string" > "Bus mode: %s %s, Big endian: %d\n"< / span > , bus_mode[cfg-> bus_mode],
spi_mode[cfg-> bus_spi.mode], cfg-> big_endian);
< strong class = "hl-keyword" > return< / strong > < span class = "hl-number" > 0< / span > ;
#endif
#ifdef MDI_USE_< span class = "hl-number" > 8080< / span > _X16
< em class = "hl-comment" > /* For 8080 bus */< / em >
cfg-> bus_mode = MDI_BUS_MODE_< span class = "hl-number" > 8080< / span > ;
cfg-> bus_< span class = "hl-number" > 8080.< / span > pin = MDI_PIN_CTL_X16;
#endif
#ifdef MDI_USE_< span class = "hl-number" > 8080< / span > _X8
cfg-> bus_mode = MDI_BUS_MODE_< span class = "hl-number" > 8080< / span > ;
cfg-> bus_< span class = "hl-number" > 8080.< / span > pin = MDI_PIN_CTL_X8;
cfg-> big_endian = MDI_DAT_ENDIAN_HIGH_< span class = "hl-number" > 8< / span > ;
#endif
printf(< span class = "hl-string" > "Bus mode: %s, Pin: %s, Big endian: %d\n"< / span > , bus_mode[cfg-> bus_mode],
cfg-> bus_< span class = "hl-number" > 8080.< / span > pin ? < span class = "hl-string" > "X16"< / span > : < span class = "hl-string" > "X8"< / span > , cfg-> big_endian);
< strong class = "hl-keyword" > return< / strong > < span class = "hl-number" > 0< / span > ;
}
< strong class = "hl-keyword" > static< / strong > < strong class = "hl-keyword" > void< / strong > cmd_test_mdi(< strong class = "hl-keyword" > int< / strong > argc, < strong class = "hl-keyword" > char< / strong > **argv)
{
< strong class = "hl-keyword" > int< / strong > c;
u32 frame_cnt = < span class = "hl-number" > 0< / span > ;
< strong class = "hl-keyword" > struct< / strong > aic_mdi_cfg cfg = {< span class = "hl-number" > 0< / span > };
optind = < span class = "hl-number" > 0< / span > ;
< strong class = "hl-keyword" > while< / strong > ((c = getopt_long(argc, argv, sopts, lopts, NULL)) != -< span class = "hl-number" > 1< / span > ) {
< strong class = "hl-keyword" > switch< / strong > (c) {
< strong class = "hl-keyword" > case< / strong > < span class = "hl-string" > 'c'< / span > :
frame_cnt = str2int(optarg);
< strong class = "hl-keyword" > continue< / strong > ;
< strong class = "hl-keyword" > case< / strong > < span class = "hl-string" > 'h'< / span > :
usage(argv[< span class = "hl-number" > 0< / span > ]);
< strong class = "hl-keyword" > return< / strong > ;
< strong class = "hl-keyword" > default< / strong > :
< strong class = "hl-keyword" > break< / strong > ;
}
}
< strong class = "hl-keyword" > if< / strong > (frame_cnt)
pr_info(< span class = "hl-string" > "Capture %d frames from DBI\n"< / span > , frame_cnt);
< strong class = "hl-keyword" > if< / strong > (aic_mdi_bus_fmt_load(& cfg) < < span class = "hl-number" > 0< / span > ) {
pr_err(< span class = "hl-string" > "Failed to get the BUS format of MDI\n"< / span > );
< strong class = "hl-keyword" > return< / strong > ;
}
mpp_vin_dev_init(frame_cnt, & cfg);
}
MSH_CMD_EXPORT_ALIAS(cmd_test_mdi, test_mdi, Test MDI module);< / pre > < / div > < / article > < / article > < / main > < / div >
< / div >
< 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" >
< div id = "wh_topic_toc_content" >
< 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 = "#id__section_shh_mdy_2dc" data-tocid = "id__section_shh_mdy_2dc" > 模块架构< / a > < / div > < / li > < li class = "topic-item" > < a href = "#topic_oxx_53y_2dc" data-tocid = "topic_oxx_53y_2dc" > 关键流程设计< / a > < ul > < li class = "section-item" > < div class = "section-title" > < a href = "#topic_oxx_53y_2dc__section_ayb_ndy_2dc" data-tocid = "topic_oxx_53y_2dc__section_ayb_ndy_2dc" > 初始化流程< / a > < / div > < / li > < li class = "section-item" > < div class = "section-title" > < a href = "#topic_oxx_53y_2dc__buffer" data-tocid = "topic_oxx_53y_2dc__buffer" > Buffer 队列管理< / a > < / div > < / li > < li class = "section-item" > < div class = "section-title" > < a href = "#topic_oxx_53y_2dc__id7" data-tocid = "topic_oxx_53y_2dc__id7" > 中断处理流程< / a > < / div > < / li > < / ul > < / li > < li class = "topic-item" > < a href = "#topic_zfs_bjy_2dc" data-tocid = "topic_zfs_bjy_2dc" > 自定义 DBI 命令设计< / a > < ul > < li class = "section-item" > < div class = "section-title" > < a href = "#topic_zfs_bjy_2dc__section_wnk_lqy_2dc" data-tocid = "topic_zfs_bjy_2dc__section_wnk_lqy_2dc" > 0x3A： < / a > < / div > < / li > < li class = "section-item" > < div class = "section-title" > < a href = "#topic_zfs_bjy_2dc__section_h5m_4qy_2dc" data-tocid = "topic_zfs_bjy_2dc__section_h5m_4qy_2dc" > 0xAC： < / a > < / div > < / li > < / ul > < / li > < li class = "topic-item" > < a href = "#topic_udm_2jy_2dc" data-tocid = "topic_udm_2jy_2dc" > 数据结构设计< / a > < ul > < li class = "section-item" > < div class = "section-title" > < a href = "#topic_udm_2jy_2dc__id8" data-tocid = "topic_udm_2jy_2dc__id8" > struct aic_mdi_cfg< / a > < / div > < / li > < li class = "section-item" > < div class = "section-title" > < a href = "#topic_udm_2jy_2dc__dbi-bus" data-tocid = "topic_udm_2jy_2dc__dbi-bus" > DBI Bus 的格式定义< / a > < / div > < / li > < li class = "section-item" > < div class = "section-title" > < a href = "#topic_udm_2jy_2dc__id9" data-tocid = "topic_udm_2jy_2dc__id9" > DBI 命令的回调信息< / a > < / div > < / li > < li class = "section-item" > < div class = "section-title" > < a href = "#topic_udm_2jy_2dc__section_spl_1ry_2dc" data-tocid = "topic_udm_2jy_2dc__section_spl_1ry_2dc" > struct aic_mdi< / a > < / div > < / li > < / ul > < / li > < li class = "topic-item" > < a href = "#topic_alp_zjy_2dc" data-tocid = "topic_alp_zjy_2dc" > MPP VIN Dev 层接口设计< / a > < / li > < li class = "topic-item" > < a href = "#topic_vcy_qky_2dc" data-tocid = "topic_vcy_qky_2dc" > Driver 层接口设计< / a > < / li > < li class = "topic-item" > < a href = "#topic_rxk_gry_2dc" data-tocid = "topic_rxk_gry_2dc" > APP Demo< / a > < / li > < / ul > < / div >
< / div >
< / nav >
< / div >
< / div >
< / div >
< footer class = "navbar navbar-default wh_footer" >
< div class = " footer-container mx-auto " >
< title > footer def< / title >
< style > < ! - -
.p1 {
font-family: FangZhengShuSong, Times, serif;
}
.p2 {
font-family: Arial, Helvetica, sans-serif;
}
.p3 {
font-family: "Lucida Console", "Courier New", monospace;
}
-->< / style >
< div class = "webhelp.fragment.footer" >
< p class = "p1" > Copyright © 2019-2024 广东匠芯创科技有限公司. All rights reserved.< / p >
< / div > < div >
< div class = "generation_time" >
Update Time: 2025-01-21
< / div >
< / div >
< / div >
< / footer >
< div id = "go2top" class = "d-print-none" >
< span class = "oxy-icon oxy-icon-up" > < / span >
< / div >
< div id = "modal_img_large" class = "modal" >
< span class = "close oxy-icon oxy-icon-remove" > < / span >
< div id = "modal_img_container" > < / div >
< div id = "caption" > < / div >
< / div >
< script src = "${pd}/publishing/publishing-styles-AIC-template/js/custom.js" defer = "defer" > < / script >
< / body >
2025-01-23 16:37:00 +08:00
< / html >
