usb.rar_D12+51_d12

以下只用了端点1进行控制传输，端点2的数据传输自己添加，没有使用DMA功能，为简单的固件程序 /************************************************************************** PHILIPS PDIUSBD12 FIRMWARE COPYRIGHT (c) 2005 BY JJJ. -- ALL RIGHTS RESERVED -- File Name: D12_USB.h Author: Jiang Jian Jun Created: 2005/4/3 Modified: NO Revision: 1.0 ***************************************************************************/ #ifndef __D12_USB_H_REVISION_FIRST__ #define __D12_USB_H_REVISION_FIRST__ ＃i nclude sbit SUSPEND = P3^5; #define D12_INT_ENDP0OUT 0x0001 //中断寄存器位定义 #define D12_INT_ENDP0IN 0x0002 #define D12_INT_ENDP1OUT 0x0004 #define D12_INT_ENDP1IN 0x0008 #define D12_INT_ENDP2OUT 0x0010 #define D12_INT_ENDP2IN 0x0020 #define D12_INT_BUSRESET 0x0040 #define D12_INT_SUSPENDCHANGE 0x0080 #define D12_INT_EOT 0x0100 #define D12_SETUPPACKET 0x20 //读最后处理状态寄存器的设置信息包0010,0000b #define EP0_PACKET_SIZE 16 //p0最大16byte #define USB_ENDPOINT_DIRECTION_MASK 0x80 //设备请求类型,传输方向 D7 1000,0000b #define USB_REQUEST_TYPE_MASK 0x30 //bmRequest的设置 #define USB_REQUEST_MASK 0x0f #define USB_STANDARD_REQUEST 0x00 //5,6位的定义 #define USB_VENDOR_REQUEST 0x20 #define USB_DEVICE_DESCRIPTOR_TYPE 0x01 //描述符类型 设备描述符01h,配置描述符02,接口描述符04,端点描述符05 #define USB_CONFIGURATION_DESCRIPTOR_TYPE 0x02 #define CONFIG_DESCRIPTOR_LENGTH 0x002E //配置描述符总长度 //************************************************************************** //Port And Macros And Structure And Union Definitions #define SWAP(x) ((((x) & 0x00FF) << 8) | (((x) >> 8) & 0x00FF)) //交换高低8位 #define MSB(x) (((x) >> 8) & 0x00FF) //取数据高8位 #define LSB(x) ((x) & 0x00FF) //取数据低8位 typedef union _Event_Flags_ //定义USB事件标志数据类型 { struct _Bit_Flags_ { unsigned char Timer : 1; //定时器益出事件标记 unsigned char BusReset : 1; //USB总线复位标志 unsigned char Suspend : 1; //USB器件挂起标志 unsigned char SetupPacket : 1; //收到SETUP包标志 unsigned char RemoteWakeup : 1; //远程唤醒标志 unsigned char InISR : 1; //USB中断服务标志 unsigned char ControlState : 2; //控制端点处理状态 //0:IDEL 空闲状态 //1:TRANSMIT 数据发送状态 //2:RECEIVE 数据接受状态 unsigned char Configuration : 1; //配置标志 (0:未配置;1:已配置) unsigned char Port1RxDone : 1; //端口1收到数据标志 unsigned char Port2RxDone : 1; //端口2收到数据标志 unsigned char Port1TxFull : 1; //端口1输出缓冲区满标志 unsigned char Port2TxFull : 1; //端口2输出缓冲区满标志 unsigned char Reserve : 3; //保留,未使用 }Bits; unsigned short int Value; }EVENT_FLAGS; //事件标志数据类型 typedef struct _DEVICE_REQUEST_ { unsigned char bmRequestType; //请求类型 unsigned char bRequest; //USB请求 unsigned short wValue; //USB请求值 unsigned short wIndex; //USB请求索引 unsigned short wLength; //记数长度 }DEVICE_REQUEST; #define MAX_CONTROLDATA_SIZE 8 typedef struct _control_xfer { DEVICE_REQUEST DeviceRequest; //USB请求结构体 unsigned short wLength; //传输数据的总字节数 unsigned short wCount; //传输字节数统计 unsigned char * pData; //传输数据指针 unsigned char dataBuffer[MAX_CONTROLDATA_SIZE]; //请求的数据 }CONTROL_XFER; static EVENT_FLAGS EventFlags; //定义为全局变量,用于与主程序的通信 static CONTROL_XFER ControlData; //保存SETUP包请求类型和请求数据 unsigned char idata EndPoint1Buffer[4]; //控制端点缓存 unsigned char idata EndPoint2Buffer[64];//主端点缓存 //************************************************************************** //硬件提取层,多路地址/数据总线方式读写 void Outportb(unsigned int Addr, unsigned char Data) { *((unsigned char xdata *) Addr) = Data; } unsigned char Inportb(unsigned int Addr) { return *((unsigned char xdata *) Addr); } void USB_Delay1ms(unsigned int count) { unsigned int i,j; for(i=0;i for(j=0;j<120;j++); } //************************************************************************** #define D12_DATA 0 #define D12_COMMAND 1 //PDIUSBD12命令接口函数 void D12_SetMode(unsigned char bConfig,unsigned char bClkDiv) { Outportb(D12_COMMAND,0xF3); Outportb(D12_DATA,bConfig); Outportb(D12_DATA,bClkDiv); } //设置端点 void D12_SetEndpointStatus(unsigned char bEndp,unsigned char bStalled) { Outportb(D12_COMMAND,0x40+bEndp); Outportb(D12_DATA,bStalled); } //应答!!!!! void D12_AcknowledgeEndpoint(unsigned char endp) { Outportb(D12_COMMAND,endp); Outportb(D12_COMMAND,0xF1); if(endp==0) Outportb(D12_COMMAND,0xF2); } //设置地址使能 void D12_SetAddressEnable(unsigned char bAddress,unsigned char bEnable) { Outportb(D12_COMMAND,0xd0); if(bEnable) bAddress |= 0x80; Outportb(D12_DATA,bAddress); } //设置端点使能 void D12_SetEndpointEnable(unsigned char bEnable) { Outportb(D12_COMMAND,0xD8); if(bEnable) Outportb(D12_DATA,1); else Outportb(D12_DATA,0); } //读中断寄存器 unsigned short D12_ReadInterruptRegister(void) { unsigned char b1; unsigned int j; Outportb(D12_COMMAND,0xF4); b1=Inportb(D12_DATA); j=Inportb(D12_DATA); j<<=8; j+=b1; return j; } //读取端点状态 unsigned char D12_ReadEndpointStatus(unsigned char EndPoint) { unsigned char BackValue; if(EventFlags.Bits.InISR == 0) EA = 0; Outportb(D12_COMMAND, 0x80 + EndPoint);//读取端点状态 BackValue = Inportb(D12_DATA); if(EventFlags.Bits.InISR == 0) EA = 1; return BackValue; } //读端点最后处理状态 unsigned char D12_ReadLastTransactionStatus(unsigned char bEndp) { Outportb(D12_COMMAND,0x40+bEndp); return Inportb(D12_DATA); } //读端口 unsigned char D12_ReadEndpoint(unsigned char endp,unsigned char len,unsigned char *buf) { unsigned char i,j; Outportb(D12_COMMAND,endp); if((Inportb(D12_DATA)&0xff)==0)//" define D12_FULLEMPTY as 0xFF by newer return 0; Outportb(D12_COMMAND,0x80+endp); i=Inportb(D12_DATA); i=i&0x60; Outportb(D12_COMMAND,0xF0); j=Inportb(D12_DATA); j=Inportb(D12_DATA); if(j>len) j=len; for(i=0;i *(buf+i)=Inportb(D12_DATA); Outportb(D12_COMMAND,0xF2); return j; } unsigned char D12_ReadEndpoint_Int(unsigned char endp,unsigned char len,unsigned char *buf) { unsigned char i,j; Outportb(D12_COMMAND,endp); if((Inportb(D12_DATA)&0xff)==0)//" define D12_FULLEMPTY as 0xFF by newer return 0; Outportb(D12_COMMAND,0x80+endp); i=Inportb(D12_DATA); i=i&0x60; Outportb(D12_COMMAND,0xF0); j=Inportb(D12_DATA); j=Inportb(D12_DATA); if(j>len) j=len; for(i=0;i *(buf+i)=Inportb(D12_DATA); Outportb(D12_COMMAND,0xF2); return j; } unsigned char D12_WriteEndpoint(unsigned char endp,unsigned char len,unsigned char * buf) { unsigned char i; Outportb(D12_COMMAND,endp); Inportb(D12_DATA); Outportb(D12_COMMAND,0xF0); Outportb(D12_DATA,0); Outportb(D12_DATA,len); for(i=0;i Outportb(D12_DATA,*(buf+i)); Outportb(D12_COMMAND,0xFA); return len; } unsigned char D12_WriteEndpoint_Int(unsigned char endp,unsigned char len,unsigned char * buf) { unsigned char i; Outportb(D12_COMMAND,endp); Inportb(D12_DATA); Outportb(D12_COMMAND,0xF0); Outportb(D12_DATA,0); Outportb(D12_DATA,len); for(i=0;i Outportb(D12_DATA,*(buf+i)); Outportb(D12_COMMAND,0xFA); return len; } void DisconnectUSB(void) { D12_SetMode(0x02,0x03);//SET TO ONE? by newer } void InitialUSBInt(void); void ConnectUSB(void) { EventFlags.Value = 0x0000; InitialUSBInt(); D12_SetMode(0x16,0x03); } void ReconnectUSB(void) { SUSPEND = 0; DisconnectUSB(); USB_Delay1ms(1000); ConnectUSB(); } //************************