USB驱动程序源代码 - 360文档中心

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项目报告7

USB驱动程序源代码作者：罗仕波

一．头文件go7007sb.h

/*

*go7007sb.h - this file includes all relative header files that

*will be used in go7007sb vedio usb interface driver, and it

*also defines all relative driver private data structures and

*it's io control commands.

*/

#ifndef _GO7007SB_H

#define _GO7007SB_H

#include

//#define DEBUG

#define DRIVER_VERSION "1.0.0"

#define DRIVER_DESC "USB GO7007SB Driver"

#include

MODULE_AUTHOR("Luo Shibo");

MODULE_DESCRIPTION(DRIVER_DESC" "DRIVER_VERSION);

MODULE_LICENSE("GPL");

/*

*io control commands definition,these commands will be

*used to control the device in function iocntl_go7007sb

*/

#define GO7007SB_IOC_MAGIC 'U' //command magic number

#define GO7007SB_IOC_RESET _IO(GO7007SB_IOC_MAGIC,0) //software reset the device

#define GO7007SB_IOC_SHUTDOWN _IO(GO7007SB_IOC_MAGIC,1) //shutdown the device

#define GO7007SB_IOC_PAUSE _IO(GO7007SB_IOC_MAGIC,2) //pause compression

#define GO7007SB_IOC_RESUME _IO(GO7007SB_IOC_MAGIC,3) //resume from pause status

#define GO7007SB_IOC_GETSTATE _IOR(GO7007SB_IOC_MAGIC,4,unsigned int)//get state of dev

/*

*go7007sb device file number,the major of all USB devices have been defined as 180,

*we just need to define minors here,currently,we accept only 4 devices

*their minors start from 64,so minors:64,65,66,67 should be ok.

*/

#ifdef __KERNEL__ /*__KERNEL__*/

#define GO7007SB_MAX_MNR 4

#define GO7007SB_BASE_MNR 64

#define USB_GO7007SB_MINOR(inode) MINOR((inode)->i_rdev)-GO7007SB_BASE_MNR

/*

*go7007sb video interface number

*/

#define GO7007SB_VIDEO_IFNUM 0

/*

*endpoints definition

*/

#define GO7007SB_MAX_EP_NUM 4 //maximum endpoint number

#define GO7007SB_EP_BULK_IN 1 //in endpoint for stream

#define GO7007SB_EP_CTRL 2 //out endpoint for control

#define GO7007SB_EP_BULK_OUT 3 //out endpoint for initialization

#define GO7007SB_EP_INTR 4 //in endpoint for interrupt

#define IS_EP_BULK(ep) ((ep).bmAttributes==USB_ENDPOINT_XFER_BULK ? 1 : 0)

#define IS_EP_BULK_IN(ep) (IS_EP_BULK(ep)&& \

((ep).bEndpointAddress & USB_ENDPOINT_DIR_MASK)==USB_DIR_IN)

#define IS_EP_BULK_OUT(ep) (IS_EP_BULK(ep)&& \

((ep).bEndpointAddress & USB_ENDPOINT_DIR_MASK)==USB_DIR_OUT)

#define IS_EP_INTR(ep) ((ep).bmAttributes==USB_ENDPOINT_XFER_INT ? 1 : 0)

#define IS_EP_CTRL(ep) ((ep).bmAttributes==USB_ENDPOINT_XFER_CONTROL ? 1 : 0)

#define USB_ENDPOINT_NUM(ep) ((ep).bEndpointAddress & USB_ENDPOINT_NUMBER_MASK)

#define USB_EP_DIR_IN 0

#define USB_EP_DIR_OUT 1