/********************************** (C) COPYRIGHT ******************************* * File Name :CompatibilityHID.C * Author : WCH * Version : V1.0 * Date : 2017/01/20 * Description : CH554模拟HID兼容设备，支持中断上下传，支持设置全速，低速 *******************************************************************************/ #include "./Public/CH554.H" #include "./Public/Debug.H" #include #include #define Fullspeed 1 #ifdef Fullspeed #define THIS_ENDP0_SIZE 64 #else #define THIS_ENDP0_SIZE DEFAULT_ENDP0_SIZE #endif UINT8X Ep0Buffer[8<(THIS_ENDP0_SIZE+2)?8:(THIS_ENDP0_SIZE+2)] _at_ 0x0000; //端点0 OUT&IN缓冲区，必须是偶地址 UINT8X Ep2Buffer[128<(2*MAX_PACKET_SIZE+4)?128:(2*MAX_PACKET_SIZE+4)] _at_ 0x0044;//端点2 IN&OUT缓冲区,必须是偶地址 UINT8 SetupReq,SetupLen,Ready,Count,FLAG,UsbConfig; PUINT8 pDescr; //USB配置标志 USB_SETUP_REQ SetupReqBuf; //暂存Setup包 #define UsbSetupBuf ((PUSB_SETUP_REQ)Ep0Buffer) sbit Ep2InKey = P1^5; //K1按键 #pragma NOAREGS /*设备描述符*/ UINT8C DevDesc[18] = {0x12,0x01,0x10,0x01,0x00,0x00,0x00,THIS_ENDP0_SIZE, 0x31,0x51,0x07,0x20,0x00,0x00,0x00,0x00, 0x00,0x01 }; UINT8C CfgDesc[41] = { 0x09,0x02,0x29,0x00,0x01,0x01,0x04,0xA0,0x23, //配置描述符 0x09,0x04,0x00,0x00,0x02,0x03,0x00,0x00,0x05, //接口描述符 0x09,0x21,0x00,0x01,0x00,0x01,0x22,0x22,0x00, //HID类描述符 0x07,0x05,0x82,0x03,THIS_ENDP0_SIZE,0x00,0x18, //端点描述符 0x07,0x05,0x02,0x03,THIS_ENDP0_SIZE,0x00,0x18, //端点描述符 }; /*字符串描述符 略*/ /*HID类报表描述符*/ UINT8C HIDRepDesc[ ] = { 0x06, 0x00,0xff, 0x09, 0x01, 0xa1, 0x01, //集合开始 0x09, 0x02, //Usage Page 用法 0x15, 0x00, //Logical Minimun 0x26, 0x00,0xff, //Logical Maximun 0x75, 0x08, //Report Size 0x95, THIS_ENDP0_SIZE, //Report Counet 0x81, 0x06, //Input 0x09, 0x02, //Usage Page 用法 0x15, 0x00, //Logical Minimun 0x26, 0x00,0xff, //Logical Maximun 0x75, 0x08, //Report Size 0x95, THIS_ENDP0_SIZE, //Report Counet 0x91, 0x06, //Output 0xC0 }; // unsigned char code LangDes[]={0x04,0x03,0x09,0x04}; //语言描述符 // unsigned char code SerDes[]={ // 0x28,0x03,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, // 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, // 0x00,0x00,0x00,0x00,0x00,0x49,0x00,0x43,0x00,0x42, // 0x00,0x43,0x00,0x31,0x00,0x00,0x00,0x00,0x00,0x00 // }; //字符串描述符 UINT8X UserEp2Buf[64]; //用户数据定义 /******************************************************************************* * Function Name : USBDeviceInit() * Description : USB设备模式配置,设备模式启动，收发端点配置，中断开启 * Input : None * Output : None * Return : None *******************************************************************************/ void USBDeviceInit() { IE_USB = 0; USB_CTRL = 0x00; // 先设定USB设备模式 #ifndef Fullspeed UDEV_CTRL |= bUD_LOW_SPEED; //选择低速1.5M模式 #else UDEV_CTRL &= ~bUD_LOW_SPEED; //选择全速12M模式，默认方式 #endif UEP2_DMA = Ep2Buffer; //端点2数据传输地址 UEP2_3_MOD |= bUEP2_TX_EN; //端点2发送使能 UEP2_3_MOD |= bUEP2_RX_EN; //端点2接收使能 UEP2_3_MOD &= ~bUEP2_BUF_MOD; //端点2收发各64字节缓冲区 UEP2_CTRL = bUEP_AUTO_TOG | UEP_T_RES_NAK | UEP_R_RES_ACK; //端点2自动翻转同步标志位，IN事务返回NAK，OUT返回ACK UEP0_DMA = Ep0Buffer; //端点0数据传输地址 UEP4_1_MOD &= ~(bUEP4_RX_EN | bUEP4_TX_EN); //端点0单64字节收发缓冲区 UEP0_CTRL = UEP_R_RES_ACK | UEP_T_RES_NAK; //OUT事务返回ACK，IN事务返回NAK USB_DEV_AD = 0x00; UDEV_CTRL = bUD_PD_DIS; // 禁止DP/DM下拉电阻 USB_CTRL = bUC_DEV_PU_EN | bUC_INT_BUSY | bUC_DMA_EN; // 启动USB设备及DMA，在中断期间中断标志未清除前自动返回NAK UDEV_CTRL |= bUD_PORT_EN; // 允许USB端口 USB_INT_FG = 0xFF; // 清中断标志 USB_INT_EN = bUIE_SUSPEND | bUIE_TRANSFER | bUIE_BUS_RST; IE_USB = 1; } /******************************************************************************* * Function Name : Enp2BlukIn() * Description : USB设备模式端点2的批量上传 * Input : None * Output : None * Return : None *******************************************************************************/ void Enp2BlukIn( ) { memcpy( Ep2Buffer+MAX_PACKET_SIZE, UserEp2Buf, sizeof(UserEp2Buf)); //加载上传数据 UEP2_T_LEN = THIS_ENDP0_SIZE; //上传最大包长度 UEP2_CTRL = UEP2_CTRL & ~ MASK_UEP_T_RES | UEP_T_RES_ACK; //有数据时上传数据并应答ACK while(UEP2_CTRL&UEP_T_RES_ACK); //等待传输完成 } /******************************************************************************* * Function Name : DeviceInterrupt() * Description : CH559USB中断处理函数 *******************************************************************************/ void DeviceInterrupt( void ) interrupt INT_NO_USB using 1 //USB中断服务程序,使用寄存器组1 { UINT8 len,i; if(UIF_TRANSFER) //USB传输完成标志 { switch (USB_INT_ST & (MASK_UIS_TOKEN | MASK_UIS_ENDP)) { case UIS_TOKEN_IN | 2: //endpoint 2# 端点批量上传 UEP2_T_LEN = 0; //预使用发送长度一定要清空 // UEP1_CTRL ^= bUEP_T_TOG; //如果不设置自动翻转则需要手动翻转 UEP2_CTRL = UEP2_CTRL & ~ MASK_UEP_T_RES | UEP_T_RES_NAK; //默认应答NAK break; case UIS_TOKEN_OUT | 2: //endpoint 2# 端点批量下传 if ( U_TOG_OK ) // 不同步的数据包将丢弃 { len = USB_RX_LEN; //接收数据长度，数据从Ep2Buffer首地址开始存放 for ( i = 0; i < len; i ++ ) { Ep2Buffer[MAX_PACKET_SIZE+i] = Ep2Buffer[i] ^ 0xFF; // OUT数据取反到IN由计算机验证 } UEP2_T_LEN = len; UEP2_CTRL = UEP2_CTRL & ~ MASK_UEP_T_RES | UEP_T_RES_ACK; // 允许上传 } break; case UIS_TOKEN_SETUP | 0: //SETUP事务 len = USB_RX_LEN; if(len == (sizeof(USB_SETUP_REQ))) { SetupLen = UsbSetupBuf->wLengthL; if(UsbSetupBuf->wLengthH || SetupLen > 0x7F ) { SetupLen = 0x7F; // 限制总长度 } len = 0; // 默认为成功并且上传0长度 SetupReq = UsbSetupBuf->bRequest; if ( ( UsbSetupBuf->bRequestType & USB_REQ_TYP_MASK ) != USB_REQ_TYP_STANDARD )/*HID类命令*/ { switch( SetupReq ) { case 0x01: //GetReport break; case 0x02: //GetIdle break; case 0x03: //GetProtocol break; case 0x09: //SetReport break; case 0x0A: //SetIdle break; case 0x0B: //SetProtocol break; default: len = 0xFF; /*命令不支持*/ break; } } else //标准请求 { switch(SetupReq) //请求码 { case USB_GET_DESCRIPTOR: switch(UsbSetupBuf->wValueH) { case 1: //设备描述符 pDescr = DevDesc; //把设备描述符送到要发送的缓冲区 len = sizeof(DevDesc); break; case 2: //配置描述符 pDescr = CfgDesc; //把设备描述符送到要发送的缓冲区 len = sizeof(CfgDesc); break; case 0x22: //报表描述符 pDescr = HIDRepDesc; //数据准备上传 len = sizeof(HIDRepDesc); Ready = 1; //如果有更多接口，该标准位应该在最后一个接口配置完成后有效 break; default: len = 0xff; //不支持的命令或者出错 break; } if ( SetupLen > len ) { SetupLen = len; //限制总长度 } len = SetupLen >= THIS_ENDP0_SIZE ? THIS_ENDP0_SIZE : SetupLen;//本次传输长度 memcpy(Ep0Buffer,pDescr,len); //加载上传数据 SetupLen -= len; pDescr += len; break; case USB_SET_ADDRESS: SetupLen = UsbSetupBuf->wValueL; //暂存USB设备地址 break; case USB_GET_CONFIGURATION: Ep0Buffer[0] = UsbConfig; if ( SetupLen >= 1 ) { len = 1; } break; case USB_SET_CONFIGURATION: UsbConfig = UsbSetupBuf->wValueL; break; case 0x0A: break; case USB_CLEAR_FEATURE: //Clear Feature if ( ( UsbSetupBuf->bRequestType & USB_REQ_RECIP_MASK ) == USB_REQ_RECIP_ENDP )// 端点 { switch( UsbSetupBuf->wIndexL ) { case 0x82: UEP2_CTRL = UEP2_CTRL & ~ ( bUEP_T_TOG | MASK_UEP_T_RES ) | UEP_T_RES_NAK; break; case 0x81: UEP1_CTRL = UEP1_CTRL & ~ ( bUEP_T_TOG | MASK_UEP_T_RES ) | UEP_T_RES_NAK; break; case 0x02: UEP2_CTRL = UEP2_CTRL & ~ ( bUEP_R_TOG | MASK_UEP_R_RES ) | UEP_R_RES_ACK; break; default: len = 0xFF; // 不支持的端点 break; } } else { len = 0xFF; // 不是端点不支持 } break; case USB_SET_FEATURE: /* Set Feature */ if( ( UsbSetupBuf->bRequestType & 0x1F ) == 0x00 ) /* 设置设备 */ { if( ( ( ( UINT16 )UsbSetupBuf->wValueH << 8 ) | UsbSetupBuf->wValueL ) == 0x01 ) { if( CfgDesc[ 7 ] & 0x20 ) { /* 设置唤醒使能标志 */ } else { len = 0xFF; /* 操作失败 */ } } else { len = 0xFF; /* 操作失败 */ } } else if( ( UsbSetupBuf->bRequestType & 0x1F ) == 0x02 ) /* 设置端点 */ { if( ( ( ( UINT16 )UsbSetupBuf->wValueH << 8 ) | UsbSetupBuf->wValueL ) == 0x00 ) { switch( ( ( UINT16 )UsbSetupBuf->wIndexH << 8 ) | UsbSetupBuf->wIndexL ) { case 0x82: UEP2_CTRL = UEP2_CTRL & (~bUEP_T_TOG) | UEP_T_RES_STALL;/* 设置端点2 IN STALL */ break; case 0x02: UEP2_CTRL = UEP2_CTRL & (~bUEP_R_TOG) | UEP_R_RES_STALL;/* 设置端点2 OUT Stall */ break; case 0x81: UEP1_CTRL = UEP1_CTRL & (~bUEP_T_TOG) | UEP_T_RES_STALL;/* 设置端点1 IN STALL */ break; default: len = 0xFF; /* 操作失败 */ break; } } else { len = 0xFF; /* 操作失败 */ } } else { len = 0xFF; /* 操作失败 */ } break; case USB_GET_STATUS: Ep0Buffer[0] = 0x00; Ep0Buffer[1] = 0x00; if ( SetupLen >= 2 ) { len = 2; } else { len = SetupLen; } break; default: len = 0xff; //操作失败 break; } } } else { len = 0xff; //包长度错误 } if(len == 0xff) { SetupReq = 0xFF; UEP0_CTRL = bUEP_R_TOG | bUEP_T_TOG | UEP_R_RES_STALL | UEP_T_RES_STALL;//STALL } else if(len <= THIS_ENDP0_SIZE) //上传数据或者状态阶段返回0长度包 { UEP0_T_LEN = len; UEP0_CTRL = bUEP_R_TOG | bUEP_T_TOG | UEP_R_RES_ACK | UEP_T_RES_ACK;//默认数据包是DATA1，返回应答ACK } else { UEP0_T_LEN = 0; //虽然尚未到状态阶段，但是提前预置上传0长度数据包以防主机提前进入状态阶段 UEP0_CTRL = bUEP_R_TOG | bUEP_T_TOG | UEP_R_RES_ACK | UEP_T_RES_ACK;//默认数据包是DATA1,返回应答ACK } break; case UIS_TOKEN_IN | 0: //endpoint0 IN switch(SetupReq) { case USB_GET_DESCRIPTOR: len = SetupLen >= THIS_ENDP0_SIZE ? THIS_ENDP0_SIZE : SetupLen; //本次传输长度 memcpy( Ep0Buffer, pDescr, len ); //加载上传数据 SetupLen -= len; pDescr += len; UEP0_T_LEN = len; UEP0_CTRL ^= bUEP_T_TOG; //同步标志位翻转 break; case USB_SET_ADDRESS: USB_DEV_AD = USB_DEV_AD & bUDA_GP_BIT | SetupLen; UEP0_CTRL = UEP_R_RES_ACK | UEP_T_RES_NAK; break; default: UEP0_T_LEN = 0; //状态阶段完成中断或者是强制上传0长度数据包结束控制传输 UEP0_CTRL = UEP_R_RES_ACK | UEP_T_RES_NAK; break; } break; case UIS_TOKEN_OUT | 0: // endpoint0 OUT len = USB_RX_LEN; if(SetupReq == 0x09) { if(Ep0Buffer[0]) { printf("Light on Num Lock LED!\n"); } else if(Ep0Buffer[0] == 0) { printf("Light off Num Lock LED!\n"); } } UEP0_T_LEN = 0; //虽然尚未到状态阶段，但是提前预置上传0长度数据包以防主机提前进入状态阶段 UEP0_CTRL = UEP_R_RES_ACK | UEP_T_RES_ACK;//默认数据包是DATA0,返回应答ACK break; default: break; } UIF_TRANSFER = 0; //写0清空中断 } if(UIF_BUS_RST) //设备模式USB总线复位中断 { UEP0_CTRL = UEP_R_RES_ACK | UEP_T_RES_NAK; UEP1_CTRL = bUEP_AUTO_TOG | UEP_R_RES_ACK; UEP2_CTRL = bUEP_AUTO_TOG | UEP_R_RES_ACK | UEP_T_RES_NAK; USB_DEV_AD = 0x00; UIF_SUSPEND = 0; UIF_TRANSFER = 0; UIF_BUS_RST = 0; //清中断标志 } if (UIF_SUSPEND) //USB总线挂起/唤醒完成 { UIF_SUSPEND = 0; if ( USB_MIS_ST & bUMS_SUSPEND ) //挂起 { #ifdef DE_PRINTF printf( "zz" ); //睡眠状态 #endif while ( XBUS_AUX & bUART0_TX ) { ; //等待发送完成 } SAFE_MOD = 0x55; SAFE_MOD = 0xAA; WAKE_CTRL = bWAK_BY_USB | bWAK_RXD0_LO; //USB或者RXD0有信号时可被唤醒 PCON |= PD; //睡眠 SAFE_MOD = 0x55; SAFE_MOD = 0xAA; WAKE_CTRL = 0x00; } } else { //意外的中断,不可能发生的情况 USB_INT_FG = 0xFF; //清中断标志 // printf("UnknownInt N"); } } main() { UINT8 i; CfgFsys( ); //CH559时钟选择配置 mDelaymS(5); //修改主频等待内部晶振稳定,必加 mInitSTDIO( ); //串口0初始化 #ifdef DE_PRINTF printf("start ...\n"); #endif for(i=0; i<64; i++) //准备演示数据 { UserEp2Buf[i] = i; } USBDeviceInit(); //USB设备模式初始化 EA = 1; //允许单片机中断 UEP1_T_LEN = 0; //预使用发送长度一定要清空 UEP2_T_LEN = 0; //预使用发送长度一定要清空 FLAG = 0; Ready = 0; while(1) { if(Ready&& (Ep2InKey==0)) { Enp2BlukIn( ); mDelaymS( 100 ); } mDelaymS( 100 ); //模拟单片机做其它事 } }