STEPBYSTEP设计一个USB调试助手之十二：实现标准请求SETUP模板填充

原创嵌入式Lee 2024-04-16 08:00 576浏览 0评论 0点赞

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一. 前言

前面我们已经实现了控制传输并进行了测试,但是每次8字节的SETUP内容都需要手动填入，一般可能记不住需要去翻规格书，所以我们可以优化下UI，实现对于标准请求可以设定提示，根据提示进行设置。我们通过子窗口来实现，需要将子窗口中设置的SETUP返回到主窗口中。以上子窗口和主窗口的信息交互我们通过信号槽来实现。

二.UI设计

2.1创建类

文件->New File... 按照如下添加Widget类Form

2.2 设计UI

Form.ui设计如下

ui文件内容如下


<ui version="4.0"> <class>Formclass> <widget class="QWidget" name="Form">  <property name="geometry">   <rect>    <x>0x>    <y>0y>    <width>673width>    <height>377height>   rect>  property>  <property name="windowTitle">   <string>Formstring>  property>  <layout class="QVBoxLayout" name="verticalLayout" stretch="10,0,0,0">   <item>    <layout class="QGridLayout" name="gridLayout" rowstretch="1,0,0" columnstretch="3,0,0,0,0,0,0">     <item row="1" column="4">      <widget class="QLineEdit" name="lineEdit_2"/>     item>     <item row="0" column="6">      <widget class="QLabel" name="label_5">       <property name="sizePolicy">        <sizepolicy hsizetype="Preferred" vsizetype="Fixed">         <horstretch>0horstretch>         <verstretch>0verstretch>        sizepolicy>       property>       <property name="text">        <string>wLengthstring>       property>      widget>     item>     <item row="1" column="0">      <layout class="QGridLayout" name="gridLayout_2">       <item row="0" column="1">        <widget class="QLabel" name="label_6">         <property name="text">          <string>Typestring>         property>        widget>       item>       <item row="0" column="0">        <widget class="QLabel" name="label_7">         <property name="text">          <string>Directionstring>         property>        widget>       item>       <item row="0" column="2">        <widget class="QLabel" name="label_8">         <property name="text">          <string>Recipientstring>         property>        widget>       item>       <item row="1" column="0">        <widget class="QComboBox" name="comboBox"/>       item>       <item row="1" column="1">        <widget class="QComboBox" name="comboBox_3"/>       item>       <item row="1" column="2">        <widget class="QComboBox" name="comboBox_4"/>       item>      layout>     item>     <item row="0" column="1">      <widget class="QLabel" name="label_2">       <property name="sizePolicy">        <sizepolicy hsizetype="Preferred" vsizetype="Fixed">         <horstretch>0horstretch>         <verstretch>0verstretch>        sizepolicy>       property>       <property name="text">        <string>bRequeststring>       property>      widget>     item>     <item row="0" column="2">      <widget class="QLabel" name="label_3">       <property name="sizePolicy">        <sizepolicy hsizetype="Preferred" vsizetype="Fixed">         <horstretch>0horstretch>         <verstretch>0verstretch>        sizepolicy>       property>       <property name="text">        <string>wValue_Lstring>       property>      widget>     item>     <item row="1" column="2">      <widget class="QLineEdit" name="lineEdit"/>     item>     <item row="0" column="4">      <widget class="QLabel" name="label_4">       <property name="sizePolicy">        <sizepolicy hsizetype="Preferred" vsizetype="Fixed">         <horstretch>0horstretch>         <verstretch>0verstretch>        sizepolicy>       property>       <property name="text">        <string>wIndex_Lstring>       property>      widget>     item>     <item row="0" column="3">      <widget class="QLabel" name="label_9">       <property name="sizePolicy">        <sizepolicy hsizetype="Preferred" vsizetype="Fixed">         <horstretch>0horstretch>         <verstretch>0verstretch>        sizepolicy>       property>       <property name="text">        <string>wValue_Hstring>       property>      widget>     item>     <item row="0" column="0">      <widget class="QLabel" name="label">       <property name="sizePolicy">        <sizepolicy hsizetype="Preferred" vsizetype="Fixed">         <horstretch>0horstretch>         <verstretch>0verstretch>        sizepolicy>       property>       <property name="text">        <string>bmRequestTypestring>       property>      widget>     item>     <item row="1" column="6">      <widget class="QLineEdit" name="lineEdit_3"/>     item>     <item row="0" column="5">      <widget class="QLabel" name="label_10">       <property name="sizePolicy">        <sizepolicy hsizetype="Preferred" vsizetype="Fixed">         <horstretch>0horstretch>         <verstretch>0verstretch>        sizepolicy>       property>       <property name="text">        <string>wIndex_Hstring>       property>      widget>     item>     <item row="1" column="1">      <widget class="QComboBox" name="comboBox_2"/>     item>     <item row="1" column="5">      <widget class="QLineEdit" name="lineEdit_5"/>     item>     <item row="1" column="3">      <widget class="QLineEdit" name="lineEdit_4"/>     item>    layout>   item>   <item>    <widget class="QLabel" name="label_11">     <property name="text">      <string>提示string>     property>    widget>   item>   <item>    <widget class="QTextEdit" name="textEdit"/>   item>   <item>    <widget class="QPushButton" name="pushButton">     <property name="text">      <string>确认string>     property>    widget>   item>  layout> widget> <resources/> <connections/>ui>

三.交互

3.1 信号槽实现子窗口返回数据到主窗口

Form.h中

类中添加信号函数

signals:void sendData(QString data);

Form.cpp中添加确认按键处理,发送信号数据

void Form::on_pushButton_clicked(){    QString str = "800600020000FE00";
    QByteArray setup_data;    setup_data.resize(8);    uint8_t Direction = ui->comboBox->currentIndex();    uint8_t Type = ui->comboBox_3->currentIndex();    uint8_t Recipient = ui->comboBox_4->currentIndex();    uint8_t bRequest = ui->comboBox_2->currentIndex();    uint8_t wValue_L = ui->lineEdit->text().toUInt();    uint8_t wValue_H = ui->lineEdit_4->text().toUInt();    uint8_t wIndex_L = ui->lineEdit_2->text().toUInt();    uint8_t wIndex_H = ui->lineEdit_5->text().toUInt();    uint16_t wLength = ui->lineEdit_3->text().toUInt();
    setup_data[0] = (uint8_t)(Direction<<7) | (uint8_t)(Type<<4) | (uint8_t)(Recipient<<0);    setup_data[1] = bRequest;    setup_data[2] = wValue_L;    setup_data[3] = wValue_H;    setup_data[4] = wIndex_L;    setup_data[5] = wIndex_H;    setup_data[6] = wLength & 0xFF;    setup_data[7] = (wLength>>8) & 0xFF;
    str = ByteArrayToHexString(setup_data);    emit sendData(str);    this->close();}

主窗口类中添加成员

QWidget *setupform;

添加信号槽

private slots:    void reshow_setup(QString);

主窗口构造函数处，new Form实例，链接信号和槽

    setupform = new Form;connect(setupform,SIGNAL(sendData(QString)),this,SLOT(reshow_setup(QString)));

主窗口实现槽处理

void MainWindow::reshow_setup(QString str){    this->show();    ui->textEdit_5->setText(str);}

3.2 子窗口初始化

form.cpp中

构造函数初始化如下，设置默认参数

Form::Form(QWidget *parent)    : QWidget(parent)    , ui(new Ui::Form){    ui->setupUi(this);
    ui->comboBox->clear();    ui->comboBox->addItems(QStringList("0=Host-to-device"));    ui->comboBox->addItems(QStringList("1=Device-to-host"));    ui->comboBox->setCurrentIndex(1);
    ui->comboBox_3->clear();    ui->comboBox_3->addItems(QStringList("0=Standard"));    ui->comboBox_3->addItems(QStringList("1=Class"));    ui->comboBox_3->addItems(QStringList("2=Vendor"));    ui->comboBox_3->addItems(QStringList("3=Reserved"));    ui->comboBox_3->setCurrentIndex(0);
    ui->comboBox_4->clear();    ui->comboBox_4->addItems(QStringList("0=Device"));    ui->comboBox_4->addItems(QStringList("1=Interface"));    ui->comboBox_4->addItems(QStringList("2=Endpoint"));    ui->comboBox_4->addItems(QStringList("3=Other"));    ui->comboBox_4->setCurrentIndex(0);
    ui->comboBox_2->clear();    ui->comboBox_2->addItems(QStringList("0=GET_STATUS"));    ui->comboBox_2->addItems(QStringList("1=CLEAR_FEATURE"));    ui->comboBox_2->addItems(QStringList("2=Reserved"));    ui->comboBox_2->addItems(QStringList("3=SET_FEATURE"));    ui->comboBox_2->addItems(QStringList("4=Reserved"));    ui->comboBox_2->addItems(QStringList("5=SET_ADDRESS"));    ui->comboBox_2->addItems(QStringList("6=GET_DESCRIPTOR"));    ui->comboBox_2->addItems(QStringList("7=SET_DESCRIPTOR"));    ui->comboBox_2->addItems(QStringList("8=GET_CONFIGURATION"));    ui->comboBox_2->addItems(QStringList("9=SET_CONFIGURATION"));    ui->comboBox_2->addItems(QStringList("10=GET_INTERFACE"));    ui->comboBox_2->addItems(QStringList("11=SET_INTERFACE"));    ui->comboBox_2->addItems(QStringList("12=SYNCH_FRAME"));    ui->comboBox_2->setCurrentIndex(6);
    ui->textEdit->setText(QString("wValue_L:填描述符索引\n")+                              QString("wValue_H:填描述符类型\n")+                              QString("DEVICE=1,CONFIGURATION=2,STRING=3,INTERFACE=4,ENDPOINT=5,DEVICE_QUALIFIER=6,OTHER_SPEED_CONFIGURATION=7,INTERFACE_POWER=8\n")+                          QString("wIndex:填0/语言ID(04 09)\n")+                              QString("wLength:填描述符长度"));    ui->lineEdit_3->setText("255");
    ui->lineEdit->setText("0");    ui->lineEdit_4->setText("0");    ui->lineEdit_2->setText("0");    ui->lineEdit_5->setText("0");    ui->lineEdit_3->setText("255");}

3.3 setup自动设置

以bRequest为准进行解析

void Form::on_comboBox_2_activated(int index){    //uint8_t bRequest = ui->comboBox_2->currentIndex();    switch(index)    {    case 0:        /* GET_STATUS */        ui->comboBox->setCurrentIndex(1);        ui->textEdit->setText("wIndex_L:填0/接口号/端点号");        ui->lineEdit_3->setText("2");    break;    case 1:        /* CLEAR_FEATURE */        ui->comboBox->setCurrentIndex(0);        ui->comboBox_3->setCurrentIndex(0);        ui->textEdit->setText(QString("wIndex_L:填0/接口号/端点号\n")+                              QString("wValue_L:\n")+                              QString("ENDPOINT_HALT=0(Recipient:Endpoint),\n")+                              QString("DEVICE_REMOTE_WAKEUP=1(Recipient:Device),\n")+                              QString("TEST_MODE=2(Recipient:Device)"));        ui->lineEdit_3->setText("0");    break;    case 3:        /* SET_FEATURE */        ui->comboBox->setCurrentIndex(0);        ui->comboBox_3->setCurrentIndex(0);        ui->textEdit->setText(QString("wIndex_L:填0/接口号/端点号\n")+                              QString("wValue_L:")+                              QString("ENDPOINT_HALT=0(Recipient:Endpoint),\n")+                              QString("DEVICE_REMOTE_WAKEUP=1(Recipient:Device),\n")+                              QString("TEST_MODE=2(Recipient:Device)"));        ui->lineEdit_3->setText("0");    break;    case 5:        /* SET_ADDRESS */        ui->comboBox->setCurrentIndex(0);        ui->comboBox_3->setCurrentIndex(0);        ui->comboBox_4->setCurrentIndex(0);        ui->textEdit->setText("wValue_L:填地址");        ui->lineEdit_3->setText("0");    break;    case 6:        /* GET_DESCRIPTOR */        ui->comboBox->setCurrentIndex(1);        ui->comboBox_3->setCurrentIndex(0);        ui->comboBox_4->setCurrentIndex(0);        ui->textEdit->setText(QString("wValue_L:填描述符索引\n")+                              QString("wValue_H:填描述符类型\n")+                              QString("DEVICE=1,CONFIGURATION=2,STRING=3,INTERFACE=4,ENDPOINT=5,DEVICE_QUALIFIER=6,OTHER_SPEED_CONFIGURATION=7,INTERFACE_POWER=8\n")+                              QString("wIndex:填0/语言ID(04 09)\n")+                              QString("wLength:填描述符长度"));        ui->lineEdit_3->setText("255");    break;    case 7:        /* SET_DESCRIPTOR */        ui->comboBox->setCurrentIndex(0);        ui->comboBox_3->setCurrentIndex(0);        ui->comboBox_4->setCurrentIndex(0);        ui->textEdit->setText(QString("wValue_L:填描述符索引\n")+                              QString("wValue_H:填描述符类型\n")+                              QString("DEVICE=1,CONFIGURATION=2,STRING=3,INTERFACE=4,ENDPOINT=5,DEVICE_QUALIFIER=6,OTHER_SPEED_CONFIGURATION=7,INTERFACE_POWER=8\n")+                              QString("wIndex:填0/语言ID(04 09)\n")+                              QString("wLength:填描述符长度"));    break;    case 8:        /* GET_CONFIGURATION*/        ui->comboBox->setCurrentIndex(1);        ui->comboBox_3->setCurrentIndex(0);        ui->comboBox_4->setCurrentIndex(0);        ui->textEdit->setText(QString("wValue:填0\n")+                              QString("wIndex:填0\n")+                              QString("wLength:填1"));        ui->lineEdit_3->setText("1");    break;    case 9:        /* SET_CONFIGURATION*/        ui->comboBox->setCurrentIndex(0);        ui->comboBox_3->setCurrentIndex(0);        ui->comboBox_4->setCurrentIndex(0);        ui->textEdit->setText(QString("wValue_L:填配置值\n")+                              QString("wIndex:填0\n")+                              QString("wLength:填0"));        ui->lineEdit_3->setText("0");    break;    case 10:        /* GET_INTERFACE */        ui->comboBox->setCurrentIndex(1);        ui->comboBox_3->setCurrentIndex(0);        ui->comboBox_4->setCurrentIndex(1);        ui->textEdit->setText(QString("wValue:填0\n")+                              QString("wIndex_L:填接口号\n")+                              QString("wLength:填1"));        ui->lineEdit_3->setText("1");    break;    case 11:        /* SET_INTERFACE */        ui->comboBox->setCurrentIndex(0);        ui->comboBox_3->setCurrentIndex(0);        ui->comboBox_4->setCurrentIndex(1);        ui->textEdit->setText(QString("wValue_L:填Alternate Setting\n")+                                      QString("wIndex_L:填接口号\n")+                                  QString("wLength:填0"));                              ui->lineEdit_3->setText("0");    break;    case 12:        /* GET_INTERFACE */        ui->comboBox->setCurrentIndex(1);        ui->comboBox_3->setCurrentIndex(0);        ui->comboBox_4->setCurrentIndex(2);        ui->textEdit->setText(QString("wValue:填0\n")+                                      QString("wIndex_L:填端点号\n")+                                  QString("wLength:填2\n")+                                  QString("Data:填2字节Frame Number"));        ui->lineEdit_3->setText("2");    break;    }}