📄 usb.c
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/******************************************************************
本程序只供学习使用，未经作者许可，不得用于其它任何用途
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USB.C file
Created by Computer-lov
Date: 2004.9.21
Edit date:2006.3.2
Version V1.1
Copyright(C) Computer-lov 2004-2014
All rigths reserved
*******************************************************************/
#include<Atmel/AT89x52.H>
#include<USB.H>
#include<PDIUSBD12.H>
#include<MASS_STORAGE.H>
//#include<serial.h>
#define USB_COMMAND_ADD 1
#define USB_DATA_ADD 0
#define USB_DATA P0
#define USB_A0 P3_5
#define USB_WR P3_6
#define USB_RD P3_7
#define USB_INT P3_2
#define ENDPOINT_NUMBER 2
#define MAX_CONTROL_DATA_SIZE 16
#define MAX_LUN 0
#define MAX_BULK_DATA_SIZE 64
CONTROL_DATA_BUFF Control_Data;
unsigned char idata buffer[64];
CBW cbw;
CSW csw;
union
{
unsigned char Register;
struct
{
unsigned char Command :1;
unsigned char Data :1;
}Status;
}SCSI;
unsigned char *pData;
code unsigned char DISK_INF[36]= //磁盘信息
{
0x00,
0x00,
0x02,
0x02,
0x1F,
0x00,0x00,0x00,
0xB5,0xE7,0XC4,0xD4,0xC8,0xA6,0xC8,0xA6,
0xD7,0xD4,0xBC,0xBA,0xD7,0xF6,0xB5,0xC4,0xBC,0xD9,0x55,0xC5,0xCC,0x00,0x00,0x00,
0x31,0x2E,0x30,0x31
};
code unsigned char DISK_CAPACITY[8]= //磁盘容量
{
0x00,0x01,0xff,0x00,
0x00,0x00,0x02,0x00
};
code unsigned char SENSE[0x12]= //模式探测返回数据
{
0x70, 0x00, 0x05, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x24, 0x00, 0x00, 0x00, 0x00, 0x00
};
code unsigned char DBR[512]= //DOS引导记录
{
0xeb, 0x3e, 0x90, //跳转指令
0x4d, 0x53, 0x44, 0x4f, 0x53, 0x35, 0x2e, 0x30, //文件系统版本信息
0x00, 0x02, //扇区字节数
0x20, //每簇扇区数
0x01, 0x00, //保留扇区数
0x02, //该分区的FAT副本数
0xF0, 0x01, //根目录项数
0x00, 0x00, //小扇区数
0xf8, //媒体描述符
0x10, 0x00, //每FAT扇区数
0x20, 0x00, //每道扇区数
0x40, 0x00, //磁头数
0x00, 0x00, 0x00, 0x00, //隐藏扇区数
0x40, 0xff, 0x01, 0x00, //大扇区数
0x80, //磁盘驱动器参数，80表示硬盘
0x00, //保留
0x29, //扩展引导标记，0x29表示后三个区可用
0x88, 0x09, 0x71, 0x20, //标卷序列号
0xBC, 0xD9, 0x55, 0xC5, 0xCC, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //磁盘标卷
0x46, 0x41, 0x54, 0x31, 0x36, 0x20, 0x20, 0x20, //文件系统类型信息
0xf1, 0x7d,
0xfa, 0x33, 0xc9, 0x8e, 0xd1, 0xbc, 0xfc, 0x7b, 0x16, 0x07, 0xbd, 0x78, 0x00, 0xc5, 0x76, 0x00,
0x1e, 0x56, 0x16, 0x55, 0xbf, 0x22, 0x05, 0x89, 0x7e, 0x00, 0x89, 0x4e, 0x02, 0xb1, 0x0b, 0xfc,
0xf3, 0xa4, 0x06, 0x1f, 0xbd, 0x00, 0x7c, 0xc6, 0x45, 0xfe, 0x0f, 0x8b, 0x46, 0x18, 0x88, 0x45,
0xf9, 0xfb, 0x38, 0x66, 0x24, 0x7c, 0x04, 0xcd, 0x13, 0x72, 0x3c, 0x8a, 0x46, 0x10, 0x98, 0xf7,
0x66, 0x16, 0x03, 0x46, 0x1c, 0x13, 0x56, 0x1e, 0x03, 0x46, 0x0e, 0x13, 0xd1, 0x50, 0x52, 0x89,
0x46, 0xfc, 0x89, 0x56, 0xfe, 0xb8, 0x20, 0x00, 0x8b, 0x76, 0x11, 0xf7, 0xe6, 0x8b, 0x5e, 0x0b,
0x03, 0xc3, 0x48, 0xf7, 0xf3, 0x01, 0x46, 0xfc, 0x11, 0x4e, 0xfe, 0x5a, 0x58, 0xbb, 0x00, 0x07,
0x8b, 0xfb, 0xb1, 0x01, 0xe8, 0x94, 0x00, 0x72, 0x47, 0x38, 0x2d, 0x74, 0x19, 0xb1, 0x0b, 0x56,
0x8b, 0x76, 0x3e, 0xf3, 0xa6, 0x5e, 0x74, 0x4a, 0x4e, 0x74, 0x0b, 0x03, 0xf9, 0x83, 0xc7, 0x15,
0x3b, 0xfb, 0x72, 0xe5, 0xeb, 0xd7, 0x2b, 0xc9, 0xb8, 0xd8, 0x7d, 0x87, 0x46, 0x3e, 0x3c, 0xd8,
0x75, 0x99, 0xbe, 0x80, 0x7d, 0xac, 0x98, 0x03, 0xf0, 0xac, 0x84, 0xc0, 0x74, 0x17, 0x3c, 0xff,
0x74, 0x09, 0xb4, 0x0e, 0xbb, 0x07, 0x00, 0xcd, 0x10, 0xeb, 0xee, 0xbe, 0x83, 0x7d, 0xeb, 0xe5,
0xbe, 0x81, 0x7d, 0xeb, 0xe0, 0x33, 0xc0, 0xcd, 0x16, 0x5e, 0x1f, 0x8f, 0x04, 0x8f, 0x44, 0x02,
0xcd, 0x19, 0xbe, 0x82, 0x7d, 0x8b, 0x7d, 0x0f, 0x83, 0xff, 0x02, 0x72, 0xc8, 0x8b, 0xc7, 0x48,
0x48, 0x8a, 0x4e, 0x0d, 0xf7, 0xe1, 0x03, 0x46, 0xfc, 0x13, 0x56, 0xfe, 0xbb, 0x00, 0x07, 0x53,
0xb1, 0x04, 0xe8, 0x16, 0x00, 0x5b, 0x72, 0xc8, 0x81, 0x3f, 0x4d, 0x5a, 0x75, 0xa7, 0x81, 0xbf,
0x00, 0x02, 0x42, 0x4a, 0x75, 0x9f, 0xea, 0x00, 0x02, 0x70, 0x00, 0x50, 0x52, 0x51, 0x91, 0x92,
0x33, 0xd2, 0xf7, 0x76, 0x18, 0x91, 0xf7, 0x76, 0x18, 0x42, 0x87, 0xca, 0xf7, 0x76, 0x1a, 0x8a,
0xf2, 0x8a, 0x56, 0x24, 0x8a, 0xe8, 0xd0, 0xcc, 0xd0, 0xcc, 0x0a, 0xcc, 0xb8, 0x01, 0x02, 0xcd,
0x13, 0x59, 0x5a, 0x58, 0x72, 0x09, 0x40, 0x75, 0x01, 0x42, 0x03, 0x5e, 0x0b, 0xe2, 0xcc, 0xc3,
0x03, 0x18, 0x01, 0x27, 0x0d, 0x0a, 0x49, 0x6e, 0x76, 0x61, 0x6c, 0x69, 0x64, 0x20, 0x73, 0x79,
0x73, 0x74, 0x65, 0x6d, 0x20, 0x64, 0x69, 0x73, 0x6b, 0xff, 0x0d, 0x0a, 0x44, 0x69, 0x73, 0x6b,
0x20, 0x49, 0x2f, 0x4f, 0x20, 0x65, 0x72, 0x72, 0x6f, 0x72, 0xff, 0x0d, 0x0a, 0x52, 0x65, 0x70,
0x6c, 0x61, 0x63, 0x65, 0x20, 0x74, 0x68, 0x65, 0x20, 0x64, 0x69, 0x73, 0x6b, 0x2c, 0x20, 0x61,
0x6e, 0x64, 0x20, 0x74, 0x68, 0x65, 0x6e, 0x20, 0x70, 0x72, 0x65, 0x73, 0x73, 0x20, 0x61, 0x6e,
0x79, 0x20, 0x6b, 0x65, 0x79, 0x0d, 0x0a, 0x00, 0x49, 0x4f, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
0x53, 0x59, 0x53, 0x4d, 0x53, 0x44, 0x4f, 0x53, 0x20, 0x20, 0x20, 0x53, 0x59, 0x53, 0x80, 0x01,
0x00, 0x57, 0x49, 0x4e, 0x42, 0x4f, 0x4f, 0x54, 0x20, 0x53, 0x59, 0x53, 0x00, 0x00, 0x55, 0xaa,
};
code unsigned char FAT[64]= //模拟的文件分配表
{
0xF8, 0xFF, 0xFF, 0xFF, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 ,0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 ,0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 ,0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};
code unsigned char ZERO[64]= //填充0
{
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 ,0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 ,0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 ,0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 ,0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};
code unsigned char ROOT_DIR[64]= //根目录
{
0xBC, 0xD9, 0x55, 0xC5, 0xCC, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, //磁盘标卷
0x08, //文件属性，表示磁盘标卷
0x00, //保留
0x00, //创建时间毫秒时间戳
0x00, 0x40, //文件创建时间
0x41, 0x31, //文件创建日期
0x42, 0x31, //最后访问日期
0x00, 0x00, //起始簇号高位字节，FAT12/16必须为0
0x00, 0x40, //最后写时间
0x42, 0x31, //最后写日期
0x00, 0x00, //起始簇低位字节
0x00, 0x00, 0x00, 0x00, //文件长度
'T', 'E', 'S', 'T', ' ', ' ', ' ', ' ', 'T', 'X', 'T', //文件名
0x01, //文件属性，表示磁盘标卷
0x00, //保留
0x00, //创建时间毫秒时间戳
0x00, 0x40, //文件创建时间
0x41, 0x31, //文件创建日期
0x42, 0x31, //最后访问日期
0x00, 0x00, //起始簇号高位字节，FAT12/16必须为0
0x00, 0x40, //最后写时间
0x42, 0x31, //最后写日期
0x02, 0x00, //起始簇低位字节
0xe9, 0x00, 0x00, 0x00, //文件长度
};
code unsigned char FILE_DATA[233]=
{"这是一个测试程序，用来测试文件系统是否工作正常。如果你能看到这些文字，那么说明你的电脑已经中了最无耻的108病毒了，请马上把所有文件删除，并格式化硬盘后，将硬盘压碎，以免你也被感染！如果你在30秒内还未开始删除文件，你的电脑将会永久报废！"};
unsigned int SWAP(unsigned int temp) //高低字节交换
{
unsigned int i;
i=temp;
i<<=8;
temp>>=8;
i|=temp;
return i;
}
/*unsigned long int SWAP_long(unsigned long int temp) //四字节交换
{
unsigned long int i;
i=temp<<24;
i|=(temp<<8)&0x00FF0000;
i|=(temp>>8)&0x0000FF00;
i|=(temp>>24)&0x000000FF;
return i;
}*/
unsigned char LSB(unsigned int temp) //取一个整数的低字节
{
return (unsigned char)temp;
}
unsigned char MSB(unsigned int temp) //取一个整数的高字节
{
return (unsigned char)(temp>>8);
}
code unsigned char LANGUAGE_ID[4]={0x04,0x03,0x09,0x04}; //字符串描述符所用的语言种类
code unsigned char device_serial_number[18]= //设备序列号
{0x12,0x03,0x32,0x00,0x30,0x00,0x37,0x00,0x31,0x00,0x30,0x00,0x39,0x00,0x38,0x00,0x32,0x00};
code DEVICE_DESCRIPTOR_STRUCT device_descriptor= //设备描述符
{
sizeof(DEVICE_DESCRIPTOR_STRUCT), //设备描述符的字节数大小
DEVICE_DESCRIPTOR, //设备描述符类型编号
0x1001, //USB版本号
0x00, //USB分配的设备类代码
0x00, //USB分配的子类代码
0x00, //USB分配的设备协议代码
0x10, //端点0的最大包大小
0x7104, //厂商编号
0xf0ff, //产品编号
0x0100, //设备出厂编号
0x00, //设备厂商字符串的索引
0x00, //描述产品字符串的索引
0x02, //描述设备序列号字符串的索引
0x01 //可能的配置数量
};
typedef struct _CON_INT_ENDP_DESCRIPTOR_STRUCT
{
CONFIGURATION_DESCRIPTOR_STRUCT configuration_descriptor;
INTERFACE_DESCRIPTOR_STRUCT interface_descritor;
ENDPOINT_DESCRIPTOR_STRUCT endpoint_descriptor[ENDPOINT_NUMBER];
}CON_INT_ENDP_DESCRIPTOR_STRUCT;
code CON_INT_ENDP_DESCRIPTOR_STRUCT con_int_endp_descriptor=
{
//configuration_descriptor //配置描述符
{
sizeof(CONFIGURATION_DESCRIPTOR_STRUCT), //配置描述符的字节数大小
CONFIGURATION_DESCRIPTOR, //配置描述符类型编号
(sizeof(CONFIGURATION_DESCRIPTOR_STRUCT)+sizeof(INTERFACE_DESCRIPTOR_STRUCT)+sizeof(ENDPOINT_DESCRIPTOR_STRUCT)*ENDPOINT_NUMBER)*256+
(sizeof(CONFIGURATION_DESCRIPTOR_STRUCT)+sizeof(INTERFACE_DESCRIPTOR_STRUCT)+sizeof(ENDPOINT_DESCRIPTOR_STRUCT)*ENDPOINT_NUMBER)/256,
0x01, //只包含一个接口
0x01, //该配置的编号
0x00, //iConfiguration字段
0x80, //采用总线供电，不支持远程唤醒
0xC8 //从总线获取最大电流400mA
},
//interface_descritor //接口描述符
{
sizeof(INTERFACE_DESCRIPTOR_STRUCT), //接口描述符的字节数大小
INTERFACE_DESCRIPTOR, //接口描述符类型编号
0x00, //接口编号为0
0x00, //该接口描述符的编号
ENDPOINT_NUMBER, //非0端点数量为2，只使用端点主端点输入和输出
0x08, //USB大容量存储设备
0x06, //使用的子类，为简化块命令
0x50, //使用的协议，这里使用单批量传输协议
0x00 //接口描述符字符串索引
},
//endpoint_descriptor[]
{
{ //主端点输入描述
sizeof(ENDPOINT_DESCRIPTOR_STRUCT), //端点描述符的字节数大小
ENDPOINT_DESCRIPTOR, //端点描述符类型编号
MAIN_POINT_IN, //端点号，主输入端点
ENDPOINT_TYPE_BULK, //使用的传输类型，批量传输
0x4000, //该端点支持的最大包尺寸，64字节
0x00 //中断扫描时间，对批量传输无效
},
{ //主端点输出描述
sizeof(ENDPOINT_DESCRIPTOR_STRUCT), //端点描述符的字节数大小
ENDPOINT_DESCRIPTOR, //端点描述符类型编号
MAIN_POINT_OUT, //端点号，主输出端点
ENDPOINT_TYPE_BULK, //使用的传输类型，批量传输
0x4000, //该端点支持的最大包尺寸，64字节
0x00 //中断扫描时间，对批量传输无效
}
}
};
union //程序标志位
{
unsigned int Register;
struct
{
unsigned char bus_reset :1;
unsigned char suspend :1;
unsigned char remote_wakeup :1;
unsigned char int_isr :1;
unsigned char not_end :1;
unsigned char usb_idle :1;
unsigned char usb_busy :1;
unsigned char setup_packet_in :1;
unsigned char setup_packet_out :1;
unsigned char set_addr :1;
unsigned char usb_endp0_in :1;
unsigned char usb_endp2_in :1;
unsigned char usb_endp2_out :1;
}flags;
}usb_flags;
union //中断寄存器
{
unsigned char Register[2];
struct
{
unsigned char control_out_port :1;
unsigned char control_in_port :1;
unsigned char port_out_1 :1;
unsigned char port_in_1 :1;
unsigned char main_out_port :1;
unsigned char main_in_port :1;
unsigned char bus_reset :1;
unsigned char suspend_change :1;
unsigned char DMA_EOT :1;
unsigned char not_use :7;
}Interrupt;
}Interrupt_Register;
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