2025-04-23 17:54:31 +08:00
<!DOCTYPE html> < html xmlns = "http://www.w3.org/1999/xhtml" xml:lang = "zh-cn" lang = "zh-cn" data-whc_version = "26.1" >
2025-07-22 11:15:46 +08:00
< 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 = "下面将以 gt911.c 文件对移植一款 CTP 进行详细的讲解。 #include <rtthread.h> #include <rtdevice.h> #include <string.h> # define DBG_TAG "gt911" # define DBG_LVL DBG_INFO #include <rtdbg.h> #include "gt911.h" //dev ..." / > < 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.relation" content = "../../../topics/sdk/peripheral/touch.html" / > < meta name = "DC.relation" content = "../../../topics/sdk/peripheral/touch-migrate-ctp-process.html" / > < meta name = "DC.relation" content = "../../../topics/sdk/peripheral/touch-revise-existing-gt911-drive.html" / > < meta name = "DC.contributor" content = "yan.wang" / > < meta name = "DC.contributor" content = "yan.wang" / > < meta name = "DC.creator" content = "yan.wang" / > < meta name = "DC.date.modified" content = "2025-05-16" / > < meta name = "DC.format" content = "HTML5" / > < meta name = "DC.identifier" content = "ctp-drive-migrate-demo" / > < title > 驱动文件解析< / title > <!-- Generated with build number 2025051600. --> < meta name = "wh-path2root" content = "../../../" / > < meta name = "wh-toc-id" content = "ctp-drive-migrate-demo-d3752e1909" / > < meta name = "wh-source-relpath" content = "topics/sdk/peripheral/ctp-drive-migrate-demo.dita" / > < meta name = "wh-out-relpath" content = "topics/sdk/peripheral/ctp-drive-migrate-demo.html" / >
2025-01-23 16:37:00 +08:00
2025-04-23 17:54:31 +08:00
< link rel = "stylesheet" type = "text/css" href = "../../../webhelp/app/commons.css?buildId=2024041900" / >
< link rel = "stylesheet" type = "text/css" href = "../../../webhelp/app/topic.css?buildId=2024041900" / >
2025-01-23 16:37:00 +08:00
2025-07-22 11:15:46 +08:00
< script src = "../../../webhelp/app/options/properties.js?buildId=20250519091401" > < / script >
2025-04-23 17:54:31 +08:00
< script src = "../../../webhelp/app/localization/strings.js?buildId=2024041900" > < / script >
2025-07-22 11:15:46 +08:00
< script src = "../../../webhelp/app/search/index/keywords.js?buildId=20250519091401" > < / script >
2025-04-23 17:54:31 +08:00
< script defer = "defer" src = "../../../webhelp/app/commons.js?buildId=2024041900" > < / script >
< script defer = "defer" src = "../../../webhelp/app/topic.js?buildId=2024041900" > < / script >
< link rel = "stylesheet" type = "text/css" href = "../../../webhelp/template/css/aic-styles-web-internal.css?buildId=2024041900" / > < link rel = "stylesheet" type = "text/css" href = "../../../webhelp/template/css/notes.css?buildId=2024041900" / > < link rel = "stylesheet" type = "text/css" href = "../../../webhelp/template/css/aic-common.css?buildId=2024041900" / > < link rel = "stylesheet" type = "text/css" href = "../../../webhelp/template/css/aic-images.css?buildId=2024041900" / > < link rel = "stylesheet" type = "text/css" href = "../../../webhelp/template/css/footnote.css?buildId=2024041900" / > < link rel = "stylesheet" type = "text/css" href = "../../../webhelp/template/css/aic-highlight-changes.css?buildId=2024041900" / > < link rel = "stylesheet" type = "text/css" href = "../../../webhelp/template/css/search-in-header.css?buildId=2024041900" / > < link rel = "stylesheet" type = "text/css" href = "../../../webhelp/template/css/topic-body-list.css?buildId=2024041900" / > < / head >
2025-01-23 16:37:00 +08:00
< body id = "ctp-drive-migrate-demo" 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" >
2025-04-23 17:54:31 +08:00
< div xmlns:whc = "http://www.oxygenxml.com/webhelp/components" class = "wh_header_flex_container navbar-nav navbar-expand-md navbar-dark" >
2025-01-23 16:37:00 +08:00
< div class = "wh_logo_and_publication_title_container" >
< div class = "wh_logo_and_publication_title" >
2025-04-23 17:54:31 +08:00
< a href = "https://www.artinchip.com" class = " wh_logo d-none d-sm-block " > < img src = "../../../company-logo.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 >
2025-01-23 16:37:00 +08:00
< / div >
< / div >
< div class = "wh_top_menu_and_indexterms_link collapse navbar-collapse" id = "wh_top_menu_and_indexterms_link" >
< / div >
< 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 >
2025-04-23 17:54:31 +08:00
< / div > < / div >
< / div >
< / header >
2025-01-23 16:37:00 +08:00
< div class = "container-fluid" id = "wh_topic_container" >
< div class = "row" >
< nav class = "wh_tools d-print-none navbar-expand-md" aria-label = "Tools" >
2025-07-22 11:15:46 +08:00
< div data-tooltip-position = "bottom" class = " wh_breadcrumb " > < ol class = "d-print-none" > < li > < span class = "home" > < a href = "../../../index.html" > < span > 主页< / span > < / a > < / span > < / li > < li > < div class = "topicref" data-id = "id" > < div class = "title" > < a href = "../../../topics/sdk/peripheral/peripheral-intro.html" > 外设移植< / a > < div class = "wh-tooltip" > < p class = "shortdesc" > < span class = "ph" > CTP、U 盘、SD 卡、有线和无线网络< / span > 等外设的介绍和使用说明。< / p > < / div > < / div > < / div > < / li > < li > < div class = "topicref" data-id = "id" > < div class = "title" > < a href = "../../../topics/sdk/peripheral/touch.html" > CTP 移植指南< / a > < / div > < / div > < / li > < li class = "active" > < div class = "topicref" data-id = "ctp-drive-migrate-demo" > < div class = "title" > < a href = "../../../topics/sdk/peripheral/ctp-drive-migrate-demo.html" > 驱动文件解析< / a > < / div > < / div > < / li > < / ol > < / div >
2025-01-23 16:37:00 +08:00
< 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_navigation_links " > < span id = "topic_navigation_links" class = "navheader" >
< span class = "navprev" > < a class = "- topic/link link" href = "../../../topics/sdk/peripheral/touch-migrate-ctp-process.html" title = "新建 CTP 驱动" aria-label = "上一主题: 新建 CTP 驱动" rel = "prev" > < / a > < / span >
2025-07-22 11:15:46 +08:00
< span class = "navnext" > < a class = "- topic/link link" href = "../../../topics/sdk/peripheral/touch-revise-existing-gt911-drive.html" title = "在 gt911 基础上修改新 CTP 驱动" aria-label = "下一主题: 在 gt911 基础上修改新 CTP 驱动" rel = "next" > < / a > < / span > < / span > < / div >
2025-01-23 16:37:00 +08:00
< 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 >
< button type = "button" id = "wh_toc_button" class = "custom-toggler navbar-toggler collapsed wh_toggle_button navbar-light" aria-expanded = "false" aria-label = "Toggle publishing table of content" aria-controls = "wh_publication_toc" >
< span class = "navbar-toggler-icon" > < / span >
< / button >
< / div >
< / nav >
< / div >
< div class = "wh_content_area" >
< div class = "row" >
< nav id = "wh_publication_toc" class = "col-lg-3 col-md-3 col-sm-12 d-md-block d-none d-print-none" aria-label = "Table of Contents Container" >
< div id = "wh_publication_toc_content" >
2025-07-22 11:15:46 +08:00
< div class = " wh_publication_toc " data-tooltip-position = "right" > < span class = "expand-button-action-labels" > < span id = "button-expand-action" role = "button" aria-label = "Expand" > < / span > < span id = "button-collapse-action" role = "button" aria-label = "Collapse" > < / span > < span id = "button-pending-action" role = "button" aria-label = "Pending" > < / span > < / span > < ul role = "tree" aria-label = "Table of Contents" > < li role = "treeitem" > < div data-tocid = "revinfo_linux-d3752e463" class = "topicref" data-id = "revinfo_linux" data-state = "leaf" > < span role = "button" class = "wh-expand-btn" > < / span > < div class = "title" > < a href = "../../../topics/revinfo/revinfo_rtos.html" id = "revinfo_linux-d3752e463-link" > 修订记录< / a > < / div > < / div > < / li > < li role = "treeitem" aria-expanded = "false" > < div data-tocid = "id-d3752e480" class = "topicref" data-id = "id" data-state = "not-ready" > < span role = "button" tabindex = "0" aria-labelledby = "button-expand-action id-d3752e480-link" class = "wh-expand-btn" > < / span > < div class = "title" > < a href = "../../../topics/sdk/env/sdk-compile.html" id = "id-d3752e480-link" > SDK 编译< / a > < div class = "wh-tooltip" > < p class = "shortdesc" > 介绍不同编译环境下 SDK 的详细编译流程。< / p > < / div > < / div > < / div > < / li > < li role = "treeitem" aria-expanded = "false" > < div data-tocid = "id-d3752e604" class = "topicref" data-id = "id" data-state = "not-ready" > < span role = "button" tabindex = "0" aria-labelledby = "button-expand-action id-d3752e604-link" class = "wh-expand-btn" > < / span > < div class = "title" > < a href = "../../../topics/sdk/advanced/sdk-usage.html" id = "id-d3752e604-link" > 使用指南< / a > < div class = "wh-tooltip" > < p class = "shortdesc" > 命令详解，编译选项，镜像和分区配置，添加应用和驱动等的详细使用说明。< / p > < / div > < / div > < / div > < / li > < li role = "treeitem" aria-expanded = "false" > < div data-tocid = "concept_rcx_czh_pzb-d3752e1004" class = "topicref" data-id = "concept_rcx_czh_pzb" data-state = "not-ready" > < span role = "button" tabindex = "0" aria-labelledby = "button-expand-action concept_rcx_czh_pzb-d3752e1004-link" class = "wh-expand-btn" > < / span > < div class = "title" > < a href = "../../../topics/sdk/chapter-app.html" id = "concept_rcx_czh_pzb-d3752e1004-link" > 应用场景< / a > < div class = "wh-tooltip" > < p class = "shortdesc" > 描述了 SDK 在不同应用场景中的配置和使用， < / p > < / div > < / div > < / div > < / li > < li role = "treeitem" aria-expanded = "true" > < div data-tocid = "id-d3752e1848" class = "topicref" data-id = "id" data-state = "expanded" > < span role = "button" tabindex = "0" aria-labelledby = "button-collapse-action id-d3752e1848-link" class = "wh-expand-btn" > < / span > < div class = "title" > < a href = "../../../topics/sdk/peripheral/peripheral-intro.html" id = "id-d3752e1848-link" > 外设移植< / a > < div class = "wh-tooltip" > < p class = "shortdesc" > < span class = "ph" > CTP、U 盘、SD 卡、有线和无线网络< / span > 等外设的介绍和使用说明。< / p > < / div > < / div > < / div > < ul role = "group" class = "navbar-nav nav-list" > < li role = "treeitem" > < div data-tocid = "id-d3752e1867" class = "topicref" data-id = "id" data-state = "leaf" > < span role = "button" class = "wh-expand-btn" > < / span > < div class = "title" > < a href = "../../../topics/sdk/peripheral/keyadc.html" id = "id-d3752e1867-link" > 按键矩阵< / a > < / div > < / div > < / li > < li role = "treeitem" aria-expanded = "true" > < div data-tocid = "id-d3752e1881" class = "topicref" data-id = "id" data-state = "expanded" > < span role = "button" tabindex = "0" aria-labelledby = "button-collapse-action id-d3752e1881-link" class = "wh-expand-btn" > < / span > < div class = "title" > < a href = "../../../topics/sdk/peripheral/touch.html" id = "id-d3752e1881-link" > CTP 移植指南< / a > < / div > < / div > < ul role = "group" class = "navbar-nav nav-list" > < li role = "treeitem" > < div data-tocid = "touch-migrate-ctp-process-d3752e1895" class = "topicref" data-id = "touch-migrate-ctp-process" data-state = "leaf" > < span role = "button" class = "wh-expand-btn" > < / span > < div class = "title" > < a href = "../../../topics/sdk/peripheral/touch-migrate-ctp-process.html" id = "touch-migrate-ctp-process-d3752e1895-link" > 新建 CTP 驱动< / a > < / div > < / div > < / li > < li role = "treeitem" class = "active" > < div data-tocid = "ctp-drive-migrate-demo-d3752e1909" class = "topicr
2025-01-23 16:37:00 +08:00
< / div >
< / nav >
< div class = "col-lg-9 col-md-9 col-sm-12" id = "wh_topic_body" >
< button id = "wh_close_publication_toc_button" class = "close-toc-button d-none" aria-label = "Toggle publishing table of content" aria-controls = "wh_publication_toc" aria-expanded = "true" >
< span class = "close-toc-icon-container" >
< span class = "close-toc-icon" > < / span >
< / span >
< / button >
2025-04-23 17:54:31 +08:00
< div class = " wh_topic_content body " > < main role = "main" > < article class = "- topic/topic topic" role = "article" aria-labelledby = "ariaid-title1" >
2025-07-22 11:15:46 +08:00
< span class = "edit-link" style = "font-size:12px; opacity:0.6; text-align:right; vertical-align:middle" > < a target = "_blank" href = "http://aicdocco/taskstopics/sdk/peripheral/ctp-drive-migrate-demo.dita" > Edit online< / a > < / span > < h1 class = "- topic/title title topictitle1" id = "ariaid-title1" > 驱动文件解析< / h1 >
< div class = "date inPage" > 16 May 2025< / div > < div style = "color: gray;" >
Read time: 18 minute(s)
2025-04-23 17:54:31 +08:00
< / div >
< div class = "- topic/body body" >
2025-07-22 11:15:46 +08:00
< p class = "- topic/p p" data-ofbid = "d98933e36__20250519091515" > 下面将以 < code class = "+ topic/ph pr-d/codeph ph codeph" > gt911.c< / code > 文件对移植一款 CTP 进行详细的讲解。< / p >
< div class = "- topic/div div" >
< pre class = "+ topic/pre pr-d/codeblock pre codeblock language-c" id = "ctp-drive-migrate-demo__codeblock_zkq_vq3_ndc" data-ofbid = "ctp-drive-migrate-demo__codeblock_zkq_vq3_ndc" > #include < rtthread.h>
2025-01-23 16:37:00 +08:00
#include < rtdevice.h>
#include < string.h>
#< span class = "hl-directive" > define< / span > DBG_TAG < span class = "hl-string" > "gt911"< / span >
#< span class = "hl-directive" > define< / span > DBG_LVL DBG_INFO
#include < rtdbg.h>
#include < span class = "hl-string" > "gt911.h"< / span >
2025-04-23 17:54:31 +08:00
< em class = "hl-comment" > //dev 结构体定义，其它 TP 也需要定义这个变量< / em >
2025-01-23 16:37:00 +08:00
< strong class = "hl-keyword" > static< / strong > < strong class = "hl-keyword" > struct< / strong > rt_i2c_client gt911_client;
< em class = "hl-comment" > //这个是 gt911 特有的数组用于更改固件的，没这需求的可以不定义< / em >
< strong class = "hl-keyword" > static< / strong > rt_uint8_t GT911_CFG_TBL[] = {
< span class = "hl-number" > 0x6b< / span > , < span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x04< / span > , < span class = "hl-number" > 0x58< / span > , < span class = "hl-number" > 0x02< / span > , < span class = "hl-number" > 0x05< / span > , < span class = "hl-number" > 0x0d< / span > , < span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x01< / span > , < span class = "hl-number" > 0x0f< / span > , < span class = "hl-number" > 0x28< / span > , < span class = "hl-number" > 0x0f< / span > ,
< span class = "hl-number" > 0x50< / span > , < span class = "hl-number" > 0x32< / span > , < span class = "hl-number" > 0x03< / span > , < span class = "hl-number" > 0x05< / span > , < span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x00< / span > ,
< span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x8a< / span > , < span class = "hl-number" > 0x2a< / span > , < span class = "hl-number" > 0x0c< / span > , < span class = "hl-number" > 0x45< / span > , < span class = "hl-number" > 0x47< / span > , < span class = "hl-number" > 0x0c< / span > , < span class = "hl-number" > 0x08< / span > , < span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x00< / span > ,
< span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x40< / span > , < span class = "hl-number" > 0x03< / span > , < span class = "hl-number" > 0x2c< / span > , < span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x01< / span > , < span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x03< / span > , < span class = "hl-number" > 0x64< / span > , < span class = "hl-number" > 0x32< / span > ,
< span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x28< / span > , < span class = "hl-number" > 0x64< / span > , < span class = "hl-number" > 0x94< / span > , < span class = "hl-number" > 0xd5< / span > , < span class = "hl-number" > 0x02< / span > , < span class = "hl-number" > 0x07< / span > , < span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x04< / span > ,
< span class = "hl-number" > 0x95< / span > , < span class = "hl-number" > 0x2c< / span > , < span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x8b< / span > , < span class = "hl-number" > 0x34< / span > , < span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x82< / span > , < span class = "hl-number" > 0x3f< / span > , < span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x7d< / span > , < span class = "hl-number" > 0x4c< / span > , < span class = "hl-number" > 0x00< / span > ,
< span class = "hl-number" > 0x7a< / span > , < span class = "hl-number" > 0x5b< / span > , < span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x7a< / span > , < span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x00< / span > ,
< span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x00< / span > ,
< span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x00< / span > ,
< span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x18< / span > , < span class = "hl-number" > 0x16< / span > , < span class = "hl-number" > 0x14< / span > , < span class = "hl-number" > 0x12< / span > , < span class = "hl-number" > 0x10< / span > , < span class = "hl-number" > 0x0e< / span > , < span class = "hl-number" > 0x0c< / span > , < span class = "hl-number" > 0x0a< / span > ,
< span class = "hl-number" > 0x08< / span > , < span class = "hl-number" > 0x06< / span > , < span class = "hl-number" > 0x04< / span > , < span class = "hl-number" > 0x02< / span > , < span class = "hl-number" > 0xff< / span > , < span class = "hl-number" > 0xff< / span > , < span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x00< / span > ,
< span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x16< / span > , < span class = "hl-number" > 0x18< / span > ,
< span class = "hl-number" > 0x1c< / span > , < span class = "hl-number" > 0x1d< / span > , < span class = "hl-number" > 0x1e< / span > , < span class = "hl-number" > 0x1f< / span > , < span class = "hl-number" > 0x20< / span > , < span class = "hl-number" > 0x21< / span > , < span class = "hl-number" > 0x22< / span > , < span class = "hl-number" > 0x24< / span > , < span class = "hl-number" > 0x13< / span > , < span class = "hl-number" > 0x12< / span > , < span class = "hl-number" > 0x10< / span > , < span class = "hl-number" > 0x0f< / span > ,
< span class = "hl-number" > 0x0a< / span > , < span class = "hl-number" > 0x08< / span > , < span class = "hl-number" > 0x06< / span > , < span class = "hl-number" > 0x04< / span > , < span class = "hl-number" > 0x02< / span > , < span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0xff< / span > , < span class = "hl-number" > 0xff< / span > , < span class = "hl-number" > 0xff< / span > , < span class = "hl-number" > 0xff< / span > , < span class = "hl-number" > 0xff< / span > , < span class = "hl-number" > 0xff< / span > ,
< span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x00< / span > ,
< span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x00< / span > , < span class = "hl-number" > 0x79< / span > , < span class = "hl-number" > 0x01< / span > ,
};
< em class = "hl-comment" > /*
* I2C 写函数， ：
* 这个函数适用于所有的 TP， ，
*/< / em >
< strong class = "hl-keyword" > static< / strong > rt_err_t gt911_write_reg(< strong class = "hl-keyword" > struct< / strong > rt_i2c_client *dev, rt_uint8_t *data,
rt_uint8_t len)
{
< strong class = "hl-keyword" > struct< / strong > rt_i2c_msg msgs;
< em class = "hl-comment" > //从机的设备地址，在初始化的时候会进行赋值< / em >
msgs.addr = dev-> client_addr;
< em class = "hl-comment" > //I2C 读写标志，这里是写标志< / em >
msgs.flags = RT_I2C_WR;
< em class = "hl-comment" > //要发送的数据< / em >
msgs.buf = data;
< em class = "hl-comment" > //数据长度< / em >
msgs.len = len;
< strong class = "hl-keyword" > if< / strong > (rt_i2c_transfer(dev-> bus, & msgs, < span class = "hl-number" > 1< / span > ) == < span class = "hl-number" > 1< / span > ) {
< strong class = "hl-keyword" > return< / strong > RT_EOK;
} < strong class = "hl-keyword" > else< / strong > {
< strong class = "hl-keyword" > return< / strong > -RT_ERROR;
}
}
< em class = "hl-comment" > /*
* I2C 读函数， ： ，
* 这个函数适用于所有的 TP， ，
*/< / em >
< strong class = "hl-keyword" > static< / strong > rt_err_t gt911_read_regs(< strong class = "hl-keyword" > struct< / strong > rt_i2c_client *dev, rt_uint8_t *reg,
rt_uint8_t *data, rt_uint8_t len)
{
< strong class = "hl-keyword" > struct< / strong > rt_i2c_msg msgs[< span class = "hl-number" > 2< / span > ];
msgs[< span class = "hl-number" > 0< / span > ].addr = dev-> client_addr;
msgs[< span class = "hl-number" > 0< / span > ].flags = RT_I2C_WR;
< em class = "hl-comment" > /*
* 要读取得寄存器地址,目前市面上有两种常见得 TP，
* 16 位的寄存器地址需要先发送高 8 位，再发送低 8 位，分成两个 buf
* 8 位的直接发送即可
*/< / em >
msgs[< span class = "hl-number" > 0< / span > ].buf = reg;
< em class = "hl-comment" > // 这里的长度对应上面的 16 位或者 8 位， ， < / em >
msgs[< span class = "hl-number" > 0< / span > ].len = GT911_REGITER_LEN;
msgs[< span class = "hl-number" > 1< / span > ].addr = dev-> client_addr;
msgs[< span class = "hl-number" > 1< / span > ].flags = RT_I2C_RD;
msgs[< span class = "hl-number" > 1< / span > ].buf = data;
msgs[< span class = "hl-number" > 1< / span > ].len = len;
< strong class = "hl-keyword" > if< / strong > (rt_i2c_transfer(dev-> bus, msgs, < span class = "hl-number" > 2< / span > ) == < span class = "hl-number" > 2< / span > ) {
< strong class = "hl-keyword" > return< / strong > RT_EOK;
} < strong class = "hl-keyword" > else< / strong > {
< strong class = "hl-keyword" > return< / strong > -RT_ERROR;
}
}
< em class = "hl-comment" > /*
* 这个函数主要用于获取 TP 的 ID，
*/< / em >
< strong class = "hl-keyword" > static< / strong > rt_err_t gt911_get_product_id(< strong class = "hl-keyword" > struct< / strong > rt_i2c_client *dev,
rt_uint8_t *data, rt_uint8_t len)
{
rt_uint8_t reg[< span class = "hl-number" > 2< / span > ];
< em class = "hl-comment" > // 这里就是将 16 位的寄存器地址拆开高 8 位低 8 位两个 buf 进行传输< / em >
reg[< span class = "hl-number" > 0< / span > ] = (rt_uint8_t)(GT911_PRODUCT_ID > > < span class = "hl-number" > 8< / span > );
reg[< span class = "hl-number" > 1< / span > ] = (rt_uint8_t)(GT911_PRODUCT_ID & < span class = "hl-number" > 0xff< / span > );
< strong class = "hl-keyword" > if< / strong > (gt911_read_regs(dev, reg, data, len) != RT_EOK) {
LOG_E(< span class = "hl-string" > "read id failed"< / span > );
< strong class = "hl-keyword" > return< / strong > -RT_ERROR;
}
< strong class = "hl-keyword" > return< / strong > RT_EOK;
}
< em class = "hl-comment" > /*
* 这个函数主要用于获取 TP 的参数， ：
*/< / em >
< strong class = "hl-keyword" > static< / strong > rt_err_t gt911_get_info(< strong class = "hl-keyword" > struct< / strong > rt_i2c_client *dev,
< strong class = "hl-keyword" > struct< / strong > rt_touch_info *info)
{
rt_uint8_t reg[< span class = "hl-number" > 2< / span > ];
rt_uint8_t out_info[< span class = "hl-number" > 7< / span > ];
rt_uint8_t out_len = < span class = "hl-number" > 7< / span > ;
reg[< span class = "hl-number" > 0< / span > ] = (rt_uint8_t)(GT911_CONFIG_REG > > < span class = "hl-number" > 8< / span > );
reg[< span class = "hl-number" > 1< / span > ] = (rt_uint8_t)(GT911_CONFIG_REG & < span class = "hl-number" > 0xFF< / span > );
< strong class = "hl-keyword" > if< / strong > (gt911_read_regs(dev, reg, out_info, out_len) != RT_EOK) {
LOG_E(< span class = "hl-string" > "read info failed"< / span > );
< strong class = "hl-keyword" > return< / strong > -RT_ERROR;
}
< em class = "hl-comment" > /*
* 这里是对获取到的数据进行组合得到参数信息
* 有些 TP 对这些寄存器并不开放，因此我们也可以通过直接赋值的方法设置参数
* 设置的参数要跟 TP 自带的固件对应上才能正常使用，具体操作如下
*/< / em >
info-> range_x = (out_info[< span class = "hl-number" > 2< / span > ] < < < span class = "hl-number" > 8< / span > ) | out_info[< span class = "hl-number" > 1< / span > ];
< em class = "hl-comment" > //info-> range_x = AIC_TOUCH_X_COORDINATE_RANGE;< / em >
< em class = "hl-comment" > //这里的 AIC_TOUCH_X_COORDINATE_RANGE 就是公用参数那里可以配置的，所以不同 TP 都可通用< / em >
info-> range_y = (out_info[< span class = "hl-number" > 4< / span > ] < < < span class = "hl-number" > 8< / span > ) | out_info[< span class = "hl-number" > 3< / span > ];
< em class = "hl-comment" > //info-> range_y = AIC_TOUCH_Y_COORDINATE_RANGE;< / em >
< em class = "hl-comment" > //这里的 AIC_TOUCH_Y_COORDINATE_RANGE 也是公用参数那里可以配置的，所以不同 TP 都可通用< / em >
info-> point_num = out_info[< span class = "hl-number" > 5< / span > ] & < span class = "hl-number" > 0x0f< / span > ;
< em class = "hl-comment" > //info-> point_num = 5;< / em >
< strong class = "hl-keyword" > if< / strong > (info-> point_num > GT911_MAX_TOUCH) {
info-> point_num = GT911_MAX_TOUCH;
rt_kprintf(< span class = "hl-string" > "Warning,tp support more than 5 points, limited to 5 points\n"< / span > );
}
< strong class = "hl-keyword" > return< / strong > RT_EOK;
}
< em class = "hl-comment" > /*
* 这里的静态变量主要是为了存储坐标点的数据，然后作逻辑判断
* GT911_MAX_TOUCH 是最大的触摸点个数也就是上面 info-> point_num 定义的 5，
* 不同的触摸个数这个数组大小不一样
*/< / em >
< strong class = "hl-keyword" > static< / strong > int16_t pre_x[GT911_MAX_TOUCH] = { -< span class = "hl-number" > 1< / span > , -< span class = "hl-number" > 1< / span > , -< span class = "hl-number" > 1< / span > , -< span class = "hl-number" > 1< / span > , -< span class = "hl-number" > 1< / span > };
< strong class = "hl-keyword" > static< / strong > int16_t pre_y[GT911_MAX_TOUCH] = { -< span class = "hl-number" > 1< / span > , -< span class = "hl-number" > 1< / span > , -< span class = "hl-number" > 1< / span > , -< span class = "hl-number" > 1< / span > , -< span class = "hl-number" > 1< / span > };
< em class = "hl-comment" > //这个 pre_w 是触摸面积的定义,有些 TP 并没有相关描述，所以不是必须的，但 xy 是必须要有< / em >
< strong class = "hl-keyword" > static< / strong > int16_t pre_w[GT911_MAX_TOUCH] = { -< span class = "hl-number" > 1< / span > , -< span class = "hl-number" > 1< / span > , -< span class = "hl-number" > 1< / span > , -< span class = "hl-number" > 1< / span > , -< span class = "hl-number" > 1< / span > };
< strong class = "hl-keyword" > static< / strong > rt_uint8_t s_tp_dowm[GT911_MAX_TOUCH] = {< span class = "hl-number" > 0< / span > };
< strong class = "hl-keyword" > static< / strong > < strong class = "hl-keyword" > struct< / strong > rt_touch_data *read_data = RT_NULL;
< em class = "hl-comment" > /*
* 这个是抬起事件上报函数，修改函数名即可使用
* 如果定义上面的静态数组的时候没有定义 pre_w 则下面代码关于 pre_w 的要删除
*/< / em >
< strong class = "hl-keyword" > static< / strong > < strong class = "hl-keyword" > void< / strong > gt911_touch_up(< strong class = "hl-keyword" > void< / strong > *buf, int8_t id)
{
read_data = (< strong class = "hl-keyword" > struct< / strong > rt_touch_data *)buf;
< strong class = "hl-keyword" > if< / strong > (s_tp_dowm[id] == < span class = "hl-number" > 1< / span > ) {
s_tp_dowm[id] = < span class = "hl-number" > 0< / span > ;
read_data[id].event = RT_TOUCH_EVENT_UP;
} < strong class = "hl-keyword" > else< / strong > {
read_data[id].event = RT_TOUCH_EVENT_NONE;
}
read_data[id].timestamp = rt_touch_get_ts();
< em class = "hl-comment" > //下面的这行可以删除< / em >
read_data[id].width = pre_w[id];
read_data[id].x_coordinate = pre_x[id];
read_data[id].y_coordinate = pre_y[id];
read_data[id].track_id = id;
pre_x[id] = -< span class = "hl-number" > 1< / span > ; < em class = "hl-comment" > /* last point is none */< / em >
pre_y[id] = -< span class = "hl-number" > 1< / span > ;
< em class = "hl-comment" > //下面的这行可以删除< / em >
pre_w[id] = -< span class = "hl-number" > 1< / span > ;
}
< em class = "hl-comment" > /*
* 这个是移动和按下事件函数，修改函数名即可使用
* 如果定义上面的静态数组的时候没有定义 pre_w 则下面代码关于 pre_w 的要删除
* 包括函数传参里面的 int16_t w 也要删除
*/< / em >
< strong class = "hl-keyword" > static< / strong > < strong class = "hl-keyword" > void< / strong > gt911_touch_down(< strong class = "hl-keyword" > void< / strong > *buf, int8_t id, int16_t x, int16_t y,
int16_t w)
{
read_data = (< strong class = "hl-keyword" > struct< / strong > rt_touch_data *)buf;
< strong class = "hl-keyword" > if< / strong > (s_tp_dowm[id] == < span class = "hl-number" > 1< / span > ) {
read_data[id].event = RT_TOUCH_EVENT_MOVE;
} < strong class = "hl-keyword" > else< / strong > {
read_data[id].event = RT_TOUCH_EVENT_DOWN;
s_tp_dowm[id] = < span class = "hl-number" > 1< / span > ;
}
read_data[id].timestamp = rt_touch_get_ts();
< em class = "hl-comment" > //下面的这行可以删除< / em >
read_data[id].width = w;
read_data[id].x_coordinate = x;
read_data[id].y_coordinate = y;
read_data[id].track_id = id;
pre_x[id] = x; < em class = "hl-comment" > /* save last point */< / em >
pre_y[id] = y;
< em class = "hl-comment" > //下面的这行可以删除< / em >
pre_w[id] = w;
}
< em class = "hl-comment" > /*
* 这个读取坐标点数据的函数，必须实现
*/< / em >
< strong class = "hl-keyword" > static< / strong > rt_size_t gt911_read_point(< strong class = "hl-keyword" > struct< / strong > rt_touch_device *touch, < strong class = "hl-keyword" > void< / strong > *buf,
rt_size_t read_num)
{
rt_uint8_t point_status = < span class = "hl-number" > 0< / span > ;
rt_uint8_t touch_num = < span class = "hl-number" > 0< / span > ;
rt_uint8_t write_buf[< span class = "hl-number" > 3< / span > ];
rt_uint8_t cmd[< span class = "hl-number" > 2< / span > ];
2025-04-23 17:54:31 +08:00
< em class = "hl-comment" > //要读取的数据的长度，一般是读取坐标数量*每一个坐标信息的 buf 长度+一些其它信息< / em >
2025-01-23 16:37:00 +08:00
rt_uint8_t read_buf[< span class = "hl-number" > 8< / span > * GT911_MAX_TOUCH] = { < span class = "hl-number" > 0< / span > };
rt_uint8_t read_index;
int8_t read_id = < span class = "hl-number" > 0< / span > ;
int16_t input_x = < span class = "hl-number" > 0< / span > ;
int16_t input_y = < span class = "hl-number" > 0< / span > ;
int16_t input_w = < span class = "hl-number" > 0< / span > ;
< em class = "hl-comment" > //存储上一次触摸点个数< / em >
< strong class = "hl-keyword" > static< / strong > rt_uint8_t pre_touch = < span class = "hl-number" > 0< / span > ;
< em class = "hl-comment" > //存储上一次坐标 ID 的数组< / em >
< strong class = "hl-keyword" > static< / strong > int8_t pre_id[GT911_MAX_TOUCH] = { < span class = "hl-number" > 0< / span > };
< em class = "hl-comment" > //这里是对传参过来的 buf 清零，避免 buf 里面已有数据对坐标读取产生影响< / em >
rt_memset(buf, < span class = "hl-number" > 0< / span > , < strong class = "hl-keyword" > sizeof< / strong > (< strong class = "hl-keyword" > struct< / strong > rt_touch_data) * read_num);
< em class = "hl-comment" > /* point status register */< / em >
cmd[< span class = "hl-number" > 0< / span > ] = (rt_uint8_t)((GT911_READ_STATUS > > < span class = "hl-number" > 8< / span > ) & < span class = "hl-number" > 0xFF< / span > );
cmd[< span class = "hl-number" > 1< / span > ] = (rt_uint8_t)(GT911_READ_STATUS & < span class = "hl-number" > 0xFF< / span > );
< strong class = "hl-keyword" > if< / strong > (gt911_read_regs(& gt911_client, cmd, & point_status, < span class = "hl-number" > 1< / span > ) != RT_EOK) {
LOG_D(< span class = "hl-string" > "read point failed\n"< / span > );
read_num = < span class = "hl-number" > 0< / span > ;
< strong class = "hl-keyword" > goto< / strong > exit_;
}
< strong class = "hl-keyword" > if< / strong > (point_status == < span class = "hl-number" > 0< / span > ) < em class = "hl-comment" > /* no data */< / em >
{
read_num = < span class = "hl-number" > 0< / span > ;
< strong class = "hl-keyword" > goto< / strong > exit_;
}
< strong class = "hl-keyword" > if< / strong > ((point_status & < span class = "hl-number" > 0x80< / span > ) == < span class = "hl-number" > 0< / span > ) < em class = "hl-comment" > /* data is not ready */< / em >
{
read_num = < span class = "hl-number" > 0< / span > ;
< strong class = "hl-keyword" > goto< / strong > exit_;
}
< em class = "hl-comment" > //触摸点个数赋值< / em >
touch_num = point_status & < span class = "hl-number" > 0x0f< / span > ; < em class = "hl-comment" > /* get point num */< / em >
< strong class = "hl-keyword" > if< / strong > (touch_num > GT911_MAX_TOUCH) < em class = "hl-comment" > /* point num is not correct */< / em >
{
read_num = < span class = "hl-number" > 0< / span > ;
< strong class = "hl-keyword" > goto< / strong > exit_;
}
cmd[< span class = "hl-number" > 0< / span > ] = (rt_uint8_t)((GT911_POINT1_REG > > < span class = "hl-number" > 8< / span > ) & < span class = "hl-number" > 0xFF< / span > );
cmd[< span class = "hl-number" > 1< / span > ] = (rt_uint8_t)(GT911_POINT1_REG & < span class = "hl-number" > 0xFF< / span > );
< em class = "hl-comment" > //读取坐标数据< / em >
< strong class = "hl-keyword" > if< / strong > (gt911_read_regs(& gt911_client, cmd, read_buf,
read_num * GT911_POINT_INFO_NUM) != RT_EOK) {
LOG_D(< span class = "hl-string" > "read point failed\n"< / span > );
read_num = < span class = "hl-number" > 0< / span > ;
< strong class = "hl-keyword" > goto< / strong > exit_;
}
< em class = "hl-comment" > /*
* 下面是对坐标事件的处理，一般可以直接照抄，更换一下信息即可
*/< / em >
< strong class = "hl-keyword" > if< / strong > (pre_touch > touch_num) < em class = "hl-comment" > /* point up */< / em >
{
< strong class = "hl-keyword" > for< / strong > (read_index = < span class = "hl-number" > 0< / span > ; read_index < pre_touch; read_index++) {
rt_uint8_t j;
< strong class = "hl-keyword" > for< / strong > (j = < span class = "hl-number" > 0< / span > ; j < touch_num; j++) < em class = "hl-comment" > /* this time touch num */< / em >
{
< em class = "hl-comment" > //坐标 ID 这里是需要更换的，要按照规格书来赋值< / em >
read_id = read_buf[j * < span class = "hl-number" > 8< / span > ] & < span class = "hl-number" > 0x0F< / span > ;
< strong class = "hl-keyword" > if< / strong > (pre_id[read_index] == read_id) < em class = "hl-comment" > /* this id is not free */< / em >
< strong class = "hl-keyword" > break< / strong > ;
< strong class = "hl-keyword" > if< / strong > (j > = touch_num - < span class = "hl-number" > 1< / span > ) {
rt_uint8_t up_id;
up_id = pre_id[read_index];
gt911_touch_up(buf, up_id);
}
}
}
}
< strong class = "hl-keyword" > if< / strong > (touch_num) < em class = "hl-comment" > /* point down */< / em >
{
rt_uint8_t off_set;
< strong class = "hl-keyword" > for< / strong > (read_index = < span class = "hl-number" > 0< / span > ; read_index < touch_num; read_index++) {
< em class = "hl-comment" > //这个 offset 是一个坐标信息的偏移， ， < / em >
off_set = read_index * < span class = "hl-number" > 8< / span > ;
< em class = "hl-comment" > //坐标 ID 这里是需要更换的，要按照规格书来赋值< / em >
read_id = read_buf[off_set] & < span class = "hl-number" > 0x0f< / span > ;
pre_id[read_index] = read_id;
< em class = "hl-comment" > //下面的 xyw 也是需要按照规格书重新组合 buf< / em >
input_x =
read_buf[off_set + < span class = "hl-number" > 1< / span > ] | (read_buf[off_set + < span class = "hl-number" > 2< / span > ] < < < span class = "hl-number" > 8< / span > ); < em class = "hl-comment" > /* x */< / em >
input_y =
read_buf[off_set + < span class = "hl-number" > 3< / span > ] | (read_buf[off_set + < span class = "hl-number" > 4< / span > ] < < < span class = "hl-number" > 8< / span > ); < em class = "hl-comment" > /* y */< / em >
input_w =
read_buf[off_set + < span class = "hl-number" > 5< / span > ] | (read_buf[off_set + < span class = "hl-number" > 6< / span > ] < < < span class = "hl-number" > 8< / span > ); < em class = "hl-comment" > /* size */< / em >
gt911_touch_down(buf, read_id, input_x, input_y, input_w);
}
} < strong class = "hl-keyword" > else< / strong > < strong class = "hl-keyword" > if< / strong > (pre_touch) {
< strong class = "hl-keyword" > for< / strong > (read_index = < span class = "hl-number" > 0< / span > ; read_index < pre_touch; read_index++) {
gt911_touch_up(buf, pre_id[read_index]);
}
}
< em class = "hl-comment" > //将当前的触摸点个数赋值给 pre_touch< / em >
pre_touch = touch_num;
exit_:
< em class = "hl-comment" > //这里是 gt911 特有的每次读取完数据要发送 0x00 完成同步，没有这个要求的不需要实现< / em >
write_buf[< span class = "hl-number" > 0< / span > ] = (rt_uint8_t)((GT911_READ_STATUS > > < span class = "hl-number" > 8< / span > ) & < span class = "hl-number" > 0xFF< / span > );
write_buf[< span class = "hl-number" > 1< / span > ] = (rt_uint8_t)(GT911_READ_STATUS & < span class = "hl-number" > 0xFF< / span > );
write_buf[< span class = "hl-number" > 2< / span > ] = < span class = "hl-number" > 0x00< / span > ;
gt911_write_reg(& gt911_client, write_buf, < span class = "hl-number" > 3< / span > );
< em class = "hl-comment" > //返回触摸点个数< / em >
< strong class = "hl-keyword" > return< / strong > read_num;
}
< em class = "hl-comment" > /*
2025-04-23 17:54:31 +08:00
* TP 的控制函数，一般来说只需要实现 RT_TOUCH_CTRL_GET_INFO，
2025-01-23 16:37:00 +08:00
*/< / em >
< strong class = "hl-keyword" > static< / strong > rt_err_t gt911_control(< strong class = "hl-keyword" > struct< / strong > rt_touch_device *touch, < strong class = "hl-keyword" > int< / strong > cmd, < strong class = "hl-keyword" > void< / strong > *arg)
{
< strong class = "hl-keyword" > if< / strong > (cmd == RT_TOUCH_CTRL_GET_ID) {
< strong class = "hl-keyword" > return< / strong > gt911_get_product_id(& gt911_client, arg, < span class = "hl-number" > 6< / span > );
}
< strong class = "hl-keyword" > if< / strong > (cmd == RT_TOUCH_CTRL_GET_INFO) {
< strong class = "hl-keyword" > return< / strong > gt911_get_info(& gt911_client, arg);
}
rt_uint8_t buf[< span class = "hl-number" > 4< / span > ];
rt_uint8_t i = < span class = "hl-number" > 0< / span > ;
rt_uint8_t *config;
config =
(rt_uint8_t *)rt_calloc(< span class = "hl-number" > 1< / span > , < strong class = "hl-keyword" > sizeof< / strong > (GT911_CFG_TBL) + GT911_REGITER_LEN);
< strong class = "hl-keyword" > if< / strong > (config == RT_NULL) {
LOG_D(< span class = "hl-string" > "malloc config memory failed\n"< / span > );
< strong class = "hl-keyword" > return< / strong > -RT_ERROR;
}
config[< span class = "hl-number" > 0< / span > ] = (rt_uint8_t)((GT911_CONFIG_REG > > < span class = "hl-number" > 8< / span > ) & < span class = "hl-number" > 0xFF< / span > );
config[< span class = "hl-number" > 1< / span > ] = (rt_uint8_t)(GT911_CONFIG_REG & < span class = "hl-number" > 0xFF< / span > );
memcpy(& config[< span class = "hl-number" > 2< / span > ], GT911_CFG_TBL, < strong class = "hl-keyword" > sizeof< / strong > (GT911_CFG_TBL));
< strong class = "hl-keyword" > switch< / strong > (cmd) {
< strong class = "hl-keyword" > case< / strong > RT_TOUCH_CTRL_SET_X_RANGE: {
rt_uint16_t x_range;
x_range = *(rt_uint16_t *)arg;
config[< span class = "hl-number" > 4< / span > ] = (rt_uint8_t)(x_range > > < span class = "hl-number" > 8< / span > );
config[< span class = "hl-number" > 3< / span > ] = (rt_uint8_t)(x_range & < span class = "hl-number" > 0xff< / span > );
GT911_CFG_TBL[< span class = "hl-number" > 2< / span > ] = config[< span class = "hl-number" > 4< / span > ];
GT911_CFG_TBL[< span class = "hl-number" > 1< / span > ] = config[< span class = "hl-number" > 3< / span > ];
< strong class = "hl-keyword" > break< / strong > ;
}
< strong class = "hl-keyword" > case< / strong > RT_TOUCH_CTRL_SET_Y_RANGE: {
rt_uint16_t y_range;
y_range = *(rt_uint16_t *)arg;
config[< span class = "hl-number" > 6< / span > ] = (rt_uint8_t)(y_range > > < span class = "hl-number" > 8< / span > );
config[< span class = "hl-number" > 5< / span > ] = (rt_uint8_t)(y_range & < span class = "hl-number" > 0xff< / span > );
GT911_CFG_TBL[< span class = "hl-number" > 4< / span > ] = config[< span class = "hl-number" > 6< / span > ];
GT911_CFG_TBL[< span class = "hl-number" > 3< / span > ] = config[< span class = "hl-number" > 5< / span > ];
< strong class = "hl-keyword" > break< / strong > ;
}
< strong class = "hl-keyword" > case< / strong > RT_TOUCH_CTRL_SET_X_TO_Y: {
config[< span class = "hl-number" > 8< / span > ] ^= (< span class = "hl-number" > 1< / span > < < < span class = "hl-number" > 3< / span > );
< strong class = "hl-keyword" > break< / strong > ;
}
< strong class = "hl-keyword" > case< / strong > RT_TOUCH_CTRL_SET_MODE: {
rt_uint16_t trig_type;
trig_type = *(rt_uint16_t *)arg;
< strong class = "hl-keyword" > switch< / strong > (trig_type) {
< strong class = "hl-keyword" > case< / strong > RT_DEVICE_FLAG_INT_RX:
config[< span class = "hl-number" > 8< / span > ] & = < span class = "hl-number" > 0xFC< / span > ;
< strong class = "hl-keyword" > break< / strong > ;
< strong class = "hl-keyword" > case< / strong > RT_DEVICE_FLAG_RDONLY:
config[< span class = "hl-number" > 8< / span > ] & = < span class = "hl-number" > 0xFC< / span > ;
config[< span class = "hl-number" > 8< / span > ] |= < span class = "hl-number" > 0x02< / span > ;
< strong class = "hl-keyword" > break< / strong > ;
< strong class = "hl-keyword" > default< / strong > :
< strong class = "hl-keyword" > break< / strong > ;
}
< strong class = "hl-keyword" > break< / strong > ;
}
< strong class = "hl-keyword" > default< / strong > : {
< strong class = "hl-keyword" > break< / strong > ;
}
}
< strong class = "hl-keyword" > if< / strong > (gt911_write_reg(& gt911_client, config,
< strong class = "hl-keyword" > sizeof< / strong > (GT911_CFG_TBL) + GT911_ADDR_LEN) != RT_EOK) {
LOG_D(< span class = "hl-string" > "send config failed"< / span > );
< strong class = "hl-keyword" > return< / strong > -< span class = "hl-number" > 1< / span > ;
}
buf[< span class = "hl-number" > 0< / span > ] = (rt_uint8_t)((GT911_CHECK_SUM > > < span class = "hl-number" > 8< / span > ) & < span class = "hl-number" > 0xFF< / span > );
buf[< span class = "hl-number" > 1< / span > ] = (rt_uint8_t)(GT911_CHECK_SUM & < span class = "hl-number" > 0xFF< / span > );
buf[< span class = "hl-number" > 2< / span > ] = < span class = "hl-number" > 0< / span > ;
< strong class = "hl-keyword" > for< / strong > (i = GT911_ADDR_LEN; i < < strong class = "hl-keyword" > sizeof< / strong > (GT911_CFG_TBL) + GT911_ADDR_LEN; i++) {
buf[GT911_ADDR_LEN] += config[i];
}
buf[< span class = "hl-number" > 2< / span > ] = (~buf[< span class = "hl-number" > 2< / span > ]) + < span class = "hl-number" > 1< / span > ;
buf[< span class = "hl-number" > 3< / span > ] = < span class = "hl-number" > 1< / span > ;
gt911_write_reg(& gt911_client, buf, < span class = "hl-number" > 4< / span > );
rt_free(config);
< strong class = "hl-keyword" > return< / strong > RT_EOK;
}
< em class = "hl-comment" > /*
* rt_touch_ops，
*/< / em >
< strong class = "hl-keyword" > static< / strong > < strong class = "hl-keyword" > struct< / strong > rt_touch_ops gt911_touch_ops = {
.touch_readpoint = gt911_read_point,
.touch_control = gt911_control,
};
< em class = "hl-comment" > /*
* 这个函数主要实现对 TP 的初始操作
*/< / em >
< strong class = "hl-keyword" > static< / strong > < strong class = "hl-keyword" > int< / strong > rt_hw_gt911_init(< strong class = "hl-keyword" > const< / strong > < strong class = "hl-keyword" > char< / strong > *name, < strong class = "hl-keyword" > struct< / strong > rt_touch_config *cfg)
{
< strong class = "hl-keyword" > struct< / strong > rt_touch_device *touch_device = RT_NULL;
touch_device =
(< strong class = "hl-keyword" > struct< / strong > rt_touch_device *)rt_malloc(< strong class = "hl-keyword" > sizeof< / strong > (< strong class = "hl-keyword" > struct< / strong > rt_touch_device));
< strong class = "hl-keyword" > if< / strong > (touch_device == RT_NULL) {
LOG_E(< span class = "hl-string" > "touch device malloc fail"< / span > );
< strong class = "hl-keyword" > return< / strong > -RT_ERROR;
}
rt_memset((< strong class = "hl-keyword" > void< / strong > *)touch_device, < span class = "hl-number" > 0< / span > , < strong class = "hl-keyword" > sizeof< / strong > (< strong class = "hl-keyword" > struct< / strong > rt_touch_device));
< em class = "hl-comment" > //这里是对 TP 一些上下电的操作，具体根据规格书来< / em >
< em class = "hl-comment" > /* hw init*/< / em >
< em class = "hl-comment" > // rst output 0< / em >
rt_pin_mode(*(rt_uint8_t *)cfg-> user_data, PIN_MODE_OUTPUT);
rt_pin_write(*(rt_uint8_t *)cfg-> user_data, PIN_LOW);
rt_thread_delay(< span class = "hl-number" > 10< / span > );
< em class = "hl-comment" > // irq output 0< / em >
rt_pin_mode(cfg-> irq_pin.pin, PIN_MODE_OUTPUT);
rt_pin_write(cfg-> irq_pin.pin, PIN_LOW);
rt_thread_delay(< span class = "hl-number" > 2< / span > );
< em class = "hl-comment" > // rst output 1< / em >
rt_pin_mode(*(rt_uint8_t *)cfg-> user_data, PIN_MODE_OUTPUT);
rt_pin_write(*(rt_uint8_t *)cfg-> user_data, PIN_HIGH);
rt_thread_delay(< span class = "hl-number" > 5< / span > );
< em class = "hl-comment" > // rst input< / em >
rt_pin_mode(*(rt_uint8_t *)cfg-> user_data, PIN_MODE_INPUT);
< em class = "hl-comment" > //irq output 0< / em >
rt_pin_mode(cfg-> irq_pin.pin, PIN_MODE_OUTPUT);
rt_pin_write(cfg-> irq_pin.pin, PIN_LOW);
rt_thread_delay(< span class = "hl-number" > 50< / span > );
< em class = "hl-comment" > //最后必须要对 IRQ 引脚设置回输入模式，不然会影响中断信号的获取< / em >
rt_pin_mode(cfg-> irq_pin.pin, PIN_MODE_INPUT);
gt911_client.bus =
(< strong class = "hl-keyword" > struct< / strong > rt_i2c_bus_device *)rt_device_find(cfg-> dev_name);
< strong class = "hl-keyword" > if< / strong > (gt911_client.bus == RT_NULL) {
LOG_E(< span class = "hl-string" > "Can't find %s device"< / span > , cfg-> dev_name);
< strong class = "hl-keyword" > return< / strong > -RT_ERROR;
}
< em class = "hl-comment" > //打开设备中断模式用 RT_DEVICE_FLAG_RDWR< / em >
< strong class = "hl-keyword" > if< / strong > (rt_device_open((rt_device_t)gt911_client.bus, RT_DEVICE_FLAG_RDWR) !=
RT_EOK) {
LOG_E(< span class = "hl-string" > "open %s device failed"< / span > , cfg-> dev_name);
< strong class = "hl-keyword" > return< / strong > -RT_ERROR;
}
< em class = "hl-comment" > //从机设备地址赋值< / em >
gt911_client.client_addr = GT911_ADDRESS_HIGH;
< em class = "hl-comment" > /* register touch device */< / em >
< em class = "hl-comment" > //赋值芯片的型号和类型< / em >
touch_device-> info.type = RT_TOUCH_TYPE_CAPACITANCE;
touch_device-> info.vendor = RT_TOUCH_VENDOR_GT;
rt_memcpy(& touch_device-> config, cfg, < strong class = "hl-keyword" > sizeof< / strong > (< strong class = "hl-keyword" > struct< / strong > rt_touch_config));
touch_device-> ops = & gt911_touch_ops;
< strong class = "hl-keyword" > if< / strong > (RT_EOK != rt_hw_touch_register(touch_device, name, RT_DEVICE_FLAG_INT_RX, RT_NULL)) {
LOG_E(< span class = "hl-string" > "touch device gt911 init failed !!!"< / span > );
< strong class = "hl-keyword" > return< / strong > -RT_ERROR;
}
LOG_I(< span class = "hl-string" > "touch device gt911 init success"< / span > );
< strong class = "hl-keyword" > return< / strong > RT_EOK;
}
< em class = "hl-comment" > /*
* 这个函数主要实现对 GPIO 的初始化，这个函数只需修改函数名即可复用
*/< / em >
< strong class = "hl-keyword" > static< / strong > < strong class = "hl-keyword" > int< / strong > rt_gt911_gpio_cfg()
{
< strong class = "hl-keyword" > unsigned< / strong > < strong class = "hl-keyword" > int< / strong > g, p;
< strong class = "hl-keyword" > long< / strong > pin;
< em class = "hl-comment" > // AIC_TOUCH_PANEL_RST_PIN 是公用参数里面的复位引脚< / em >
pin = drv_pin_get(AIC_TOUCH_PANEL_RST_PIN);
g = GPIO_GROUP(pin);
p = GPIO_GROUP_PIN(pin);
hal_gpio_direction_input(g, p);
< em class = "hl-comment" > // AIC_TOUCH_PANEL_INT_PIN 是公用参数里面的中断引脚< / em >
pin = drv_pin_get(AIC_TOUCH_PANEL_INT_PIN);
g = GPIO_GROUP(pin);
p = GPIO_GROUP_PIN(pin);
hal_gpio_direction_input(g, p);
hal_gpio_set_irq_mode(g, p, < span class = "hl-number" > 0< / span > );
< strong class = "hl-keyword" > return< / strong > < span class = "hl-number" > 0< / span > ;
}
< em class = "hl-comment" > /*
* 这个函数主要注册整个设备，改个名字即可复用
*/< / em >
< strong class = "hl-keyword" > static< / strong > < strong class = "hl-keyword" > int< / strong > rt_hw_gt911_port(< strong class = "hl-keyword" > void< / strong > )
{
< strong class = "hl-keyword" > struct< / strong > rt_touch_config cfg;
rt_uint8_t rst_pin;
rt_gt911_gpio_cfg();
rst_pin = drv_pin_get(AIC_TOUCH_PANEL_RST_PIN);
cfg.dev_name = AIC_TOUCH_PANEL_I2C_CHAN;
cfg.irq_pin.pin = drv_pin_get(AIC_TOUCH_PANEL_INT_PIN);
cfg.irq_pin.mode = PIN_MODE_INPUT;
cfg.user_data = & rst_pin;
#ifdef AIC_PM_DEMO
rt_pm_set_pin_wakeup_source(cfg.irq_pin.pin);
#endif
< em class = "hl-comment" > // AIC_TOUCH_PANEL_NAME 这个是公用参数里面设备名字，也可以直接复用< / em >
rt_hw_gt911_init(AIC_TOUCH_PANEL_NAME, & cfg);
< strong class = "hl-keyword" > return< / strong > < span class = "hl-number" > 0< / span > ;
}
< em class = "hl-comment" > //通过宏 ``INIT_DEVICE_EXPORT``，驱动在系统启动时自动加载,即可轻松适配不同型号的触控芯片< / em >
2025-07-22 11:15:46 +08:00
INIT_DEVICE_EXPORT(rt_hw_gt911_port);< / pre >
< / div >
2025-04-23 17:54:31 +08:00
< / div >
< / article > < / main > < / div >
2025-01-23 16:37:00 +08:00
< / div >
< / div >
< / div >
< / div >
< footer class = "navbar navbar-default wh_footer" >
< div class = " footer-container mx-auto " >
< title > footer def< / title >
2025-04-23 17:54:31 +08:00
< style >
2025-01-23 16:37:00 +08:00
.p1 {
font-family: FangZhengShuSong, Times, serif;
}
.p2 {
font-family: Arial, Helvetica, sans-serif;
}
.p3 {
font-family: "Lucida Console", "Courier New", monospace;
}
2025-04-23 17:54:31 +08:00
< / style >
2025-01-23 16:37:00 +08:00
< div class = "webhelp.fragment.footer" >
2025-04-23 17:54:31 +08:00
< p class = "p1" > Copyright © 2019-2025 广东匠芯创科技有限公司. All rights reserved.< / p >
< / div >
< div >
2025-01-23 16:37:00 +08:00
< div class = "generation_time" >
2025-07-22 11:15:46 +08:00
Update Time: 2025-05-19
2025-01-23 16:37:00 +08:00
< / div >
2025-04-23 17:54:31 +08:00
< / div >
2025-01-23 16:37:00 +08:00
< / 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 >
< / html >
