/********************************** (C) COPYRIGHT ******************************* * File Name :CompositeKM.C * Author : WCH * Version : V1.0 * Date : 2017/01/20 * Description : CH559模拟USB复合设备，键鼠，支持类命令 *******************************************************************************/ #include "./Public/CH554.H" #include "./Public/Debug.H" #include #include #define THIS_ENDP0_SIZE DEFAULT_ENDP0_SIZE 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 Ep1Buffer[64<(MAX_PACKET_SIZE+2)?64:(MAX_PACKET_SIZE+2)] _at_ 0x000a; //端点1 IN缓冲区,必须是偶地址 UINT8X Ep2Buffer[64<(MAX_PACKET_SIZE+2)?64:(MAX_PACKET_SIZE+2)] _at_ 0x0050; //端点2 IN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 sbit Ep2InKey = P1^5; #define UsbSetupBuf ((PUSB_SETUP_REQ)Ep0Buffer) #define DEBUG 0 #pragma NOAREGS /*设备描述符*/ UINT8C DevDesc[18] = {0x12,0x01,0x10,0x01,0x00,0x00,0x00,0x08, 0x3d,0x41,0x07,0x21,0x00,0x00,0x00,0x00, 0x00,0x01 }; UINT8C CfgDesc[59] = { 0x09,0x02,0x3b,0x00,0x02,0x01,0x00,0xA0,0x32, //配置描述符 0x09,0x04,0x00,0x00,0x01,0x03,0x01,0x01,0x00, //接口描述符,键盘 0x09,0x21,0x11,0x01,0x00,0x01,0x22,0x3e,0x00, //HID类描述符 0x07,0x05,0x81,0x03,0x08,0x00,0x0a, //端点描述符 0x09,0x04,0x01,0x00,0x01,0x03,0x01,0x02,0x00, //接口描述符,鼠标 0x09,0x21,0x10,0x01,0x00,0x01,0x22,0x34,0x00, //HID类描述符 0x07,0x05,0x82,0x03,0x04,0x00,0x0a //端点描述符 }; /*字符串描述符*/ /*HID类报表描述符*/ UINT8C KeyRepDesc[62] = { 0x05,0x01,0x09,0x06,0xA1,0x01,0x05,0x07, 0x19,0xe0,0x29,0xe7,0x15,0x00,0x25,0x01, 0x75,0x01,0x95,0x08,0x81,0x02,0x95,0x01, 0x75,0x08,0x81,0x01,0x95,0x03,0x75,0x01, 0x05,0x08,0x19,0x01,0x29,0x03,0x91,0x02, 0x95,0x05,0x75,0x01,0x91,0x01,0x95,0x06, 0x75,0x08,0x26,0xff,0x00,0x05,0x07,0x19, 0x00,0x29,0x91,0x81,0x00,0xC0 }; UINT8C MouseRepDesc[52] = { 0x05,0x01,0x09,0x02,0xA1,0x01,0x09,0x01, 0xA1,0x00,0x05,0x09,0x19,0x01,0x29,0x03, 0x15,0x00,0x25,0x01,0x75,0x01,0x95,0x03, 0x81,0x02,0x75,0x05,0x95,0x01,0x81,0x01, 0x05,0x01,0x09,0x30,0x09,0x31,0x09,0x38, 0x15,0x81,0x25,0x7f,0x75,0x08,0x95,0x03, 0x81,0x06,0xC0,0xC0 }; /*鼠标数据*/ UINT8 HIDMouse[4] = {0x0,0x0,0x0,0x0}; /*键盘数据*/ UINT8 HIDKey[8] = {0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0}; /******************************************************************************* * 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 UEP2_DMA = Ep2Buffer; //端点2数据传输地址 UEP2_3_MOD = UEP2_3_MOD & ~bUEP2_BUF_MOD | bUEP2_TX_EN; //端点2发送使能 64字节缓冲区 UEP2_CTRL = bUEP_AUTO_TOG | UEP_T_RES_NAK; //端点2自动翻转同步标志位，IN事务返回NAK 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 UEP1_DMA = Ep1Buffer; //端点1数据传输地址 UEP4_1_MOD = UEP4_1_MOD & ~bUEP1_BUF_MOD | bUEP1_TX_EN; //端点1发送使能 64字节缓冲区 UEP1_CTRL = bUEP_AUTO_TOG | UEP_T_RES_NAK; //端点1自动翻转同步标志位，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 : Enp1IntIn() * Description : USB设备模式端点1的中断上传 * Input : None * Output : None * Return : None *******************************************************************************/ void Enp1IntIn( ) { memcpy( Ep1Buffer, HIDKey, sizeof(HIDKey)); //加载上传数据 UEP1_T_LEN = sizeof(HIDKey); //上传数据长度 UEP1_CTRL = UEP1_CTRL & ~ MASK_UEP_T_RES | UEP_T_RES_ACK; //有数据时上传数据并应答ACK } /******************************************************************************* * Function Name : Enp2IntIn() * Description : USB设备模式端点2的中断上传 * Input : None * Output : None * Return : None *******************************************************************************/ void Enp2IntIn( ) { memcpy( Ep2Buffer, HIDMouse, sizeof(HIDMouse)); //加载上传数据 UEP2_T_LEN = sizeof(HIDMouse); //上传数据长度 UEP2_CTRL = UEP2_CTRL & ~ MASK_UEP_T_RES | UEP_T_RES_ACK; //有数据时上传数据并应答ACK } /******************************************************************************* * 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; 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# 中断端点上传 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_IN | 1: //endpoint 1# 中断端点上传 UEP1_T_LEN = 0; //预使用发送长度一定要清空 // UEP2_CTRL ^= bUEP_T_TOG; //如果不设置自动翻转则需要手动翻转 UEP1_CTRL = UEP1_CTRL & ~ MASK_UEP_T_RES | UEP_T_RES_NAK; //默认应答NAK FLAG = 1; /*传输完成标志*/ 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 if(UsbSetupBuf->wIndexL == 0) //接口0报表描述符 { pDescr = KeyRepDesc; //数据准备上传 len = sizeof(KeyRepDesc); } else if(UsbSetupBuf->wIndexL == 1) //接口1报表描述符 { pDescr = MouseRepDesc; //数据准备上传 len = sizeof(MouseRepDesc); 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 } else { len = 0xff; //本程序只有2个接口，这句话正常不可能执行 } 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 >= 8 ? 8 : 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 0x01: UEP1_CTRL = UEP1_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 <= 8) //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 >= 8 ? 8 : 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 { #if DEBUG 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"); } } void HIDValueHandle() { UINT8 i; i = getkey( ); printf( "%c", (UINT8)i ); switch(i) { //鼠标数据上传示例 case 'L': //左键 HIDMouse[0] = 0x01; Enp2IntIn(); HIDMouse[0] = 0; break; case 'R': //右键 HIDMouse[0] = 0x02; Enp2IntIn(); HIDMouse[0] = 0; break; //键盘数据上传示例 case 'A': //A键 FLAG = 0; HIDKey[2] = 0x04; //按键开始 Enp1IntIn(); HIDKey[2] = 0; //按键结束 while(FLAG == 0) { ; /*等待上一包传输完成*/ } Enp1IntIn(); break; case 'P': //P键 FLAG = 0; HIDKey[2] = 0x13; Enp1IntIn(); HIDKey[2] = 0; //按键结束 while(FLAG == 0) { ; /*等待上一包传输完成*/ } Enp1IntIn(); break; case 'Q': //Num Lock键 FLAG = 0; HIDKey[2] = 0x53; Enp1IntIn(); HIDKey[2] = 0; //按键结束 while(FLAG == 0) { ; /*等待上一包传输完成*/ } Enp1IntIn(); break; default: //其他 UEP1_CTRL = UEP1_CTRL & ~ MASK_UEP_T_RES | UEP_T_RES_NAK; //默认应答NAK UEP2_CTRL = UEP2_CTRL & ~ MASK_UEP_T_RES | UEP_T_RES_NAK; //默认应答NAK break; } } main() { 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 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) { HIDValueHandle(); } if(Ready&&(Ep2InKey == 0)){ #ifdef DE_PRINTF //读取芯片ID号 printf("ID0 = %02x %02x \n",(UINT16)*(PUINT8C)(0x3FFA),(UINT16)*(PUINT8C)(0x3FFB)); printf("ID1 = %02x %02x \n",(UINT16)*(PUINT8C)(0x3FFC),(UINT16)*(PUINT8C)(0x3FFD)); printf("ID2 = %02x %02x \n",(UINT16)*(PUINT8C)(0x3FFE),(UINT16)*(PUINT8C)(0x3FFF)); #endif mDelaymS( 100 ); } mDelaymS( 100 ); //模拟单片机做其它事 } }