336 lines
14 KiB
C
336 lines
14 KiB
C
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/********************************** (C) COPYRIGHT *******************************
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* File Name : VendorDefinedDev.C
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* Author : WCH
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* Version : V1.0
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* Date : 2017/01/20
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* Description : CH554模拟USB Module(CH554),厂商自定义接口设备，需要安装驱动，
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驱动搜索CH37XDRV或者安装ISPTool会自动安装该设备类驱动，该设备类除了控制传输外，还是直插端点2批量上下传和端点1
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中断上传，可以通过372DEBUG.EXE获取其他USB调试工具进行收发数据演示
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*******************************************************************************/
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#include "./Public/CH554.H"
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#include "./Public/Debug.H"
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#include <stdio.h>
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#include <string.h>
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#define THIS_ENDP0_SIZE DEFAULT_ENDP0_SIZE
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// 设备描述符
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UINT8C MyDevDescr[] = { 0x12, 0x01, 0x10, 0x01,
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0xFF, 0x80, 0x55, THIS_ENDP0_SIZE,
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0x48, 0x43, 0x37, 0x55, // 厂商ID和产品ID
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0x00, 0x01, 0x01, 0x02,
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0x00, 0x01 };
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// 配置描述符
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UINT8C MyCfgDescr[] = { 0x09, 0x02, 0x27, 0x00, 0x01, 0x01, 0x00, 0x80, 0x32,
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0x09, 0x04, 0x00, 0x00, 0x03, 0xFF, 0x80, 0x55, 0x00,
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0x07, 0x05, 0x82, 0x02, 0x40, 0x00, 0x00,
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0x07, 0x05, 0x02, 0x02, 0x40, 0x00, 0x00,
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0x07, 0x05, 0x81, 0x03, 0x40, 0x00, 0x00 };
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// 语言描述符
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UINT8C MyLangDescr[] = { 0x04, 0x03, 0x09, 0x04 };
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// 厂家信息
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UINT8C MyManuInfo[] = { 0x0E, 0x03, 'w', 0, 'c', 0, 'h', 0, '.', 0, 'c', 0, 'n', 0 };
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// 产品信息
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UINT8C MyProdInfo[] = { 0x0C, 0x03, 'C', 0, 'H', 0, '5', 0, '5', 0, '4', 0 };
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UINT8 UsbConfig = 0; // USB配置标志
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UINT8X Ep0Buffer[THIS_ENDP0_SIZE+2 >= MAX_PACKET_SIZE ? MAX_PACKET_SIZE : THIS_ENDP0_SIZE+2]; // OUT&IN
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UINT8X Ep1Buffer[MAX_PACKET_SIZE]; // IN
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UINT8X Ep2Buffer[2*MAX_PACKET_SIZE]; // OUT+IN
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#define UsbSetupBuf ((PUSB_SETUP_REQ)Ep0Buffer)
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#pragma NOAREGS
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void USB_DeviceInterrupt( void ) interrupt INT_NO_USB using 1 /* USB中断服务程序,使用寄存器组1 */
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{
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UINT8 i, len;
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static UINT8 SetupReqCode, SetupLen;
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static PUINT8 pDescr;
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if ( UIF_TRANSFER ) { // USB传输完成
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if ( U_IS_NAK ) { // not enable for this example
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// switch ( USB_INT_ST & ( MASK_UIS_TOKEN | MASK_UIS_ENDP ) ) { // 分析操作令牌和端点号
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// case UIS_TOKEN_OUT | 2: // endpoint 2# 批量端点下传
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// break;
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// case UIS_TOKEN_IN | 2: // endpoint 2# 批量端点上传
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// break;
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// case UIS_TOKEN_IN | 1: // endpoint 1# 中断端点上传
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// break;
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// default:
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// break;
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// }
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}
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else {
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switch ( USB_INT_ST & ( MASK_UIS_TOKEN | MASK_UIS_ENDP ) ) { // 分析操作令牌和端点号
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case UIS_TOKEN_OUT | 2: // endpoint 2# 批量端点下传
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if ( U_TOG_OK ) { // 不同步的数据包将丢弃
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// UEP2_CTRL ^= bUEP_R_TOG; // 已自动翻转
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len = USB_RX_LEN;
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for ( i = 0; i < len; i ++ ) {
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Ep2Buffer[MAX_PACKET_SIZE+i] = Ep2Buffer[i] ^ 0xFF; // OUT数据取反到IN由计算机验证
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}
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UEP2_T_LEN = len;
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UEP2_CTRL = UEP2_CTRL & ~ MASK_UEP_T_RES | UEP_T_RES_ACK;// 允许上传
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}
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break;
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case UIS_TOKEN_IN | 2: // endpoint 2# 批量端点上传
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// UEP2_CTRL ^= bUEP_T_TOG; // 已自动翻转
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UEP2_CTRL = UEP2_CTRL & ~ MASK_UEP_T_RES | UEP_T_RES_NAK; // 暂停上传
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break;
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case UIS_TOKEN_IN | 1: // endpoint 1# 中断端点上传
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// UEP1_CTRL ^= bUEP_T_TOG; // 已自动翻转
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UEP1_CTRL = UEP1_CTRL & ~ MASK_UEP_T_RES | UEP_T_RES_NAK; // 暂停上传
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break;
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case UIS_TOKEN_SETUP | 0: // endpoint 0# SETUP
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len = USB_RX_LEN;
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if ( len == sizeof( USB_SETUP_REQ ) ) { // SETUP包长度
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SetupLen = UsbSetupBuf->wLengthL;
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if ( UsbSetupBuf->wLengthH || SetupLen > 0x7F ) SetupLen = 0x7F;// 限制总长度
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len = 0; // 默认为成功并且上传0长度
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SetupReqCode = UsbSetupBuf->bRequest;
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if ( ( UsbSetupBuf->bRequestType & USB_REQ_TYP_MASK ) != USB_REQ_TYP_STANDARD ) { /* 非标准请求 */
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len = 0xFF;
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}
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else { // 标准请求
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switch( SetupReqCode ) { // 请求码
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case USB_GET_DESCRIPTOR:
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switch( UsbSetupBuf->wValueH ) {
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case 1: // 设备描述符
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pDescr = (PUINT8)( &MyDevDescr[0] );
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len = sizeof( MyDevDescr );
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break;
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case 2: // 配置描述符
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pDescr = (PUINT8)( &MyCfgDescr[0] );
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len = sizeof( MyCfgDescr );
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break;
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case 3: // 字符串描述符
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switch( UsbSetupBuf->wValueL ) {
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case 1:
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pDescr = (PUINT8)( &MyManuInfo[0] );
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len = sizeof( MyManuInfo );
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break;
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case 2:
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pDescr = (PUINT8)( &MyProdInfo[0] );
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len = sizeof( MyProdInfo );
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break;
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case 0:
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pDescr = (PUINT8)( &MyLangDescr[0] );
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len = sizeof( MyLangDescr );
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break;
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default:
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len = 0xFF; // 不支持的字符串描述符
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break;
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}
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break;
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default:
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len = 0xFF; // 不支持的描述符类型
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break;
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}
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if ( SetupLen > len ) SetupLen = len; // 限制总长度
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len = SetupLen >= THIS_ENDP0_SIZE ? THIS_ENDP0_SIZE : SetupLen; // 本次传输长度
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memcpy( Ep0Buffer, pDescr, len ); /* 加载上传数据 */
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SetupLen -= len;
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pDescr += len;
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break;
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case USB_SET_ADDRESS:
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SetupLen = UsbSetupBuf->wValueL; // 暂存USB设备地址
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break;
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case USB_GET_CONFIGURATION:
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Ep0Buffer[0] = UsbConfig;
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if ( SetupLen >= 1 ) len = 1;
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break;
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case USB_SET_CONFIGURATION:
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UsbConfig = UsbSetupBuf->wValueL;
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break;
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case USB_CLEAR_FEATURE:
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if ( ( UsbSetupBuf->bRequestType & USB_REQ_RECIP_MASK ) == USB_REQ_RECIP_ENDP ) { // 端点
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switch( UsbSetupBuf->wIndexL ) {
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case 0x82:
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UEP2_CTRL = UEP2_CTRL & ~ ( bUEP_T_TOG | MASK_UEP_T_RES ) | UEP_T_RES_NAK;
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break;
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case 0x02:
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UEP2_CTRL = UEP2_CTRL & ~ ( bUEP_R_TOG | MASK_UEP_R_RES ) | UEP_R_RES_ACK;
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break;
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case 0x81:
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UEP1_CTRL = UEP1_CTRL & ~ ( bUEP_T_TOG | MASK_UEP_T_RES ) | UEP_T_RES_NAK;
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break;
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case 0x01:
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UEP1_CTRL = UEP1_CTRL & ~ ( bUEP_R_TOG | MASK_UEP_R_RES ) | UEP_R_RES_ACK;
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break;
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default:
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len = 0xFF; // 不支持的端点
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break;
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}
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}
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else len = 0xFF; // 不是端点不支持
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break;
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case USB_GET_INTERFACE:
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Ep0Buffer[0] = 0x00;
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if ( SetupLen >= 1 ) len = 1;
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break;
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case USB_GET_STATUS:
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Ep0Buffer[0] = 0x00;
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Ep0Buffer[1] = 0x00;
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if ( SetupLen >= 2 ) len = 2;
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else len = SetupLen;
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break;
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default:
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len = 0xFF; // 操作失败
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#ifdef DE_PRINTF
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printf("ErrEp0ReqCode=%02X\n",(UINT16)SetupReqCode);
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#endif
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break;
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}
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}
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}
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else {
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len = 0xFF; // SETUP包长度错误
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#ifdef DE_PRINTF
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printf("ErrEp0ReqSize\n");
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#endif
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}
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if ( len == 0xFF ) { // 操作失败
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SetupReqCode = 0xFF;
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UEP0_CTRL = bUEP_R_TOG | bUEP_T_TOG | UEP_R_RES_STALL | UEP_T_RES_STALL; // STALL
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}
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else if ( len <= THIS_ENDP0_SIZE ) { // 上传数据或者状态阶段返回0长度包
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UEP0_T_LEN = len;
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UEP0_CTRL = bUEP_R_TOG | bUEP_T_TOG | UEP_R_RES_ACK | UEP_T_RES_ACK; // 默认数据包是DATA1
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}
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else { // 下传数据或其它
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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
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UEP0_CTRL = bUEP_R_TOG | bUEP_T_TOG | UEP_R_RES_ACK | UEP_T_RES_ACK; // 默认数据包是DATA1
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}
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break;
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case UIS_TOKEN_IN | 0: // endpoint 0# IN
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switch( SetupReqCode ) {
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case USB_GET_DESCRIPTOR:
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len = SetupLen >= THIS_ENDP0_SIZE ? THIS_ENDP0_SIZE : SetupLen; // 本次传输长度
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memcpy( Ep0Buffer, pDescr, len ); /* 加载上传数据 */
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SetupLen -= len;
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pDescr += len;
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UEP0_T_LEN = len;
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UEP0_CTRL ^= bUEP_T_TOG; // 翻转
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break;
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case USB_SET_ADDRESS:
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USB_DEV_AD = USB_DEV_AD & bUDA_GP_BIT | SetupLen;
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UEP0_CTRL = UEP_R_RES_ACK | UEP_T_RES_NAK;
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break;
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default:
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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
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UEP0_CTRL = UEP_R_RES_ACK | UEP_T_RES_NAK;
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break;
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}
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break;
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case UIS_TOKEN_OUT | 0: // endpoint 0# OUT
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switch( SetupReqCode ) {
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// case download:
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// if ( U_TOG_OK ) { // 不同步的数据包将丢弃
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// UEP0_CTRL ^= bUEP_R_TOG; // 翻转
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// //获取下传数据;
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// //UEP0_CTRL = UEP0_CTRL & bUEP_R_TOG | bUEP_T_TOG | UEP_R_RES_ACK | UEP_T_RES_ACK; // 预置上传0长度数据包DATA1以防主机提前进入状态阶段
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// }
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// break;
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case USB_GET_DESCRIPTOR:
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default:
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if ( U_TOG_OK ) { // 不同步的数据包将丢弃
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// if ( USB_RX_LEN ) control_status_error;
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// else control_ok; // 收到0长度包表示控制读操作/上传OK
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}
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// else control_status_error;
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UEP0_CTRL = UEP_R_RES_ACK | UEP_T_RES_NAK; // 准备下一控制传输
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break;
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}
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break;
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default:
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break;
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}
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}
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UIF_TRANSFER = 0; // 清中断标志
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}
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else if ( UIF_BUS_RST ) { // USB总线复位
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UEP0_CTRL = UEP_R_RES_ACK | UEP_T_RES_NAK;
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UEP1_CTRL = bUEP_AUTO_TOG | UEP_R_RES_ACK;
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UEP2_CTRL = bUEP_AUTO_TOG | UEP_R_RES_ACK | UEP_T_RES_NAK;
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USB_DEV_AD = 0x00;
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UIF_SUSPEND = 0;
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UIF_TRANSFER = 0;
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UIF_BUS_RST = 0; // 清中断标志
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}
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else if ( UIF_SUSPEND ) { // USB总线挂起/唤醒完成
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UIF_SUSPEND = 0;
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if ( USB_MIS_ST & bUMS_SUSPEND ) { // 挂起
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#ifdef DE_PRINTF
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printf( "zz" ); // 睡眠状态
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#endif
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while ( XBUS_AUX & bUART0_TX ); // 等待发送完成
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SAFE_MOD = 0x55;
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SAFE_MOD = 0xAA;
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WAKE_CTRL = bWAK_BY_USB | bWAK_RXD0_LO; // USB或者RXD0有信号时可被唤醒
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PCON |= PD; // 睡眠
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SAFE_MOD = 0x55;
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SAFE_MOD = 0xAA;
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WAKE_CTRL = 0x00;
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}
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else { // 唤醒
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}
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}
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else { // 意外的中断,不可能发生的情况
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USB_INT_FG = 0xFF; // 清中断标志
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}
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}
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/*******************************************************************************
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* Function Name : InitUSB_Device()
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* Description : USB设备模式配置,设备模式启动，收发端点配置，中断开启
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* Input : None
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* Output : None
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* Return : None
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*******************************************************************************/
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void InitUSB_Device( void ) // 初始化USB设备
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{
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IE_USB = 0;
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USB_CTRL = 0x00; // 先设定模式
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UEP4_1_MOD = bUEP1_TX_EN; // 端点1上传IN
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UEP2_3_MOD = bUEP2_RX_EN | bUEP2_TX_EN; // 端点2下传OUT和上传IN
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UEP0_DMA = Ep0Buffer;
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UEP1_DMA = Ep1Buffer;
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UEP2_DMA = Ep2Buffer;
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UEP0_CTRL = UEP_R_RES_ACK | UEP_T_RES_NAK;
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UEP1_CTRL = bUEP_AUTO_TOG | UEP_R_RES_ACK;
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UEP2_CTRL = bUEP_AUTO_TOG | UEP_R_RES_ACK | UEP_T_RES_NAK;
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USB_DEV_AD = 0x00;
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UDEV_CTRL = bUD_PD_DIS; // 禁止DP/DM下拉电阻
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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
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UDEV_CTRL |= bUD_PORT_EN; // 允许USB端口
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USB_INT_FG = 0xFF; // 清中断标志
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USB_INT_EN = bUIE_SUSPEND | bUIE_TRANSFER | bUIE_BUS_RST;
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IE_USB = 1;
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}
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main( ) {
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UINT8 i;
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CfgFsys();
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mDelaymS(5); //修改主频，稍加延时等待主频稳定
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mInitSTDIO( ); /* 初始化串口0为了让计算机通过串口监控演示过程 */
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#ifdef DE_PRINTF
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printf( "Start @ChipID=%02X\n", (UINT16)CHIP_ID );
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#endif
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InitUSB_Device( );
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EA = 1;
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while ( 1 ) {
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i = getkey( );
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printf( "%c", (UINT8)i );
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if ( i >= '0' && i <= 'z' ) {
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memcpy( Ep1Buffer, (PUINT8C)(i-'0'), MAX_PACKET_SIZE ); /* 加载上传数据 */
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UEP1_T_LEN = i-'0' > 8 ? 8 : i-'0';
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UEP1_CTRL = UEP1_CTRL & ~ MASK_UEP_T_RES | UEP_T_RES_ACK;
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}
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}
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}
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