linux_wrapper.h

ReactOs中的USB驱动

/*
 * linux-wrapper.h
 *
 * Hard coded Linux kernel replacements for x86
 *
 * (c) 2003 Georg Acher ([e-mail])
 *
 * Emulation of:
 * typedefs
 * structs
 * macros
 *
 * All structs and prototypes are based on kernel source 2.5.72
 *
 * Modified by Aleksey Bragin ([e-mail]) for ReactOS needs
 *
 *
 * #include <standard-GPL-header.h>
 */

/*------------------------------------------------------------------------*/
/* Typedefs */
/*------------------------------------------------------------------------*/ 
#include "cromwell_types.h"

typedef unsigned int __u32;
//typedef __u32 u32;
typedef unsigned short __u16;
//typedef __u16 u16;
typedef unsigned char __u8;
//typedef __u8 u8;

typedef short s16;

typedef u32 dma_addr_t;

typedef struct
{
	KSPIN_LOCK SpinLock;
	KIRQL  OldIrql;
} spinlock_t;

typedef int atomic_t;
#ifndef STANDALONE
#ifndef _MODE_T_
#define _MODE_T_
typedef int mode_t;
#endif
#ifndef _PID_T_
#define _PID_T_
typedef int pid_t;
#endif
#ifndef _SSIZE_T_
#define _SSIZE_T_
typedef int ssize_t;
#endif

#endif
typedef int irqreturn_t;
typedef unsigned long kernel_ulong_t;

typedef int wait_queue_head_t;
/*------------------------------------------------------------------------*/ 
/* Stuff from xbox/linux environment */
/*------------------------------------------------------------------------*/ 

#include "list.h"

#ifndef STANDALONE
#ifdef MODULE
typedef int size_t;
#define NULL ((void*)0)
extern void * memset(void *,int,unsigned int);
extern void * memcpy(void *,const void *,unsigned int);
#if 0
extern char * strcpy(char *,const char *);
#else
static inline char * strcpy(char * dest,const char *src)
{
int d0, d1, d2;
__asm__ __volatile__(
        "1:\tlodsb\n\t"
        "stosb\n\t"
        "testb %%al,%%al\n\t"
        "jne 1b"
        : "=&S" (d0), "=&D" (d1), "=&a" (d2)
        :"0" (src),"1" (dest) : "memory");
return dest;
}
#endif
extern size_t strlen(const char *);

extern int memcmp(const void *,const void *,unsigned int);

#else
#include "boot.h"
#include "config.h"
#endif
#else
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include "consts.h"
#include <string.h>
#endif

/*------------------------------------------------------------------------*/ 
/* General structs */
/*------------------------------------------------------------------------*/ 

struct timer_list { 
	void (*function)(unsigned long);
	unsigned long data;
	int expires;
	struct list_head timer_list;
};

struct work_struct {
	void (*func)(void *);
};
struct device {
	char name[128];
	struct bus_type *bus;
	int dma_mask;
	char    bus_id[16];
	struct device_driver* driver;
	void            *driver_data;
	struct device *parent;
	struct list_head driver_list;
	void    (*release)(struct device * dev);

	PDEVICE_OBJECT dev_ext; // ReactOS-specific: pointer to windows device object
};
struct class_device{int a;};
struct semaphore{int a;};

struct device_driver{
	char *name;
	struct bus_type *bus;
	int     (*probe)        (struct device * dev);
        int     (*remove)       (struct device * dev);
	struct list_head        devices;
};

struct bus_type {
        char                    * name;       
        int             (*match)(struct device * dev, struct device_driver * drv);
        struct device * (*add)  (struct device * parent, char * bus_id);
        int             (*hotplug) (struct device *dev, char **envp, 
                                    int num_envp, char *buffer, int buffer_size);
};

struct dummy_process
{
	int flags;
};

struct pt_regs
{
	int a;
};
struct completion {
        unsigned int done;
		KEVENT wait;
        //wait_queue_head_t wait;
};

// windows lookaside list head
typedef void* kmem_cache_t;

struct dma_pool
{
	int dummy;
};

/* These definitions mirror those in pci.h, so they can be used
 * interchangeably with their PCI_ counterparts */
enum dma_data_direction {
	DMA_BIDIRECTIONAL = 0,
	DMA_TO_DEVICE = 1,
	DMA_FROM_DEVICE = 2,
	DMA_NONE = 3,
};

/* compatibility */
#define PCI_DMA_TODEVICE DMA_TO_DEVICE
#define PCI_DMA_FROMDEVICE DMA_FROM_DEVICE

/* from mod_devicetable.h */
struct usb_device_id {
        /* which fields to match against? */
        __u16           match_flags;

        /* Used for product specific matches; range is inclusive */
        __u16           idVendor;
        __u16           idProduct;
        __u16           bcdDevice_lo;
        __u16           bcdDevice_hi;

        /* Used for device class matches */
        __u8            bDeviceClass;
        __u8            bDeviceSubClass;
        __u8            bDeviceProtocol;

        /* Used for interface class matches */
        __u8            bInterfaceClass;
        __u8            bInterfaceSubClass;
        __u8            bInterfaceProtocol;

        /* not matched against */
        kernel_ulong_t  driver_info;
};

/* Some useful macros to use to create struct usb_device_id */
#define USB_DEVICE_ID_MATCH_VENDOR              0x0001
#define USB_DEVICE_ID_MATCH_PRODUCT             0x0002
#define USB_DEVICE_ID_MATCH_DEV_LO              0x0004
#define USB_DEVICE_ID_MATCH_DEV_HI              0x0008
#define USB_DEVICE_ID_MATCH_DEV_CLASS           0x0010
#define USB_DEVICE_ID_MATCH_DEV_SUBCLASS        0x0020
#define USB_DEVICE_ID_MATCH_DEV_PROTOCOL        0x0040
#define USB_DEVICE_ID_MATCH_INT_CLASS           0x0080
#define USB_DEVICE_ID_MATCH_INT_SUBCLASS        0x0100
#define USB_DEVICE_ID_MATCH_INT_PROTOCOL        0x0200

/*------------------------------------------------------------------------*/ 
/* imported functions from top-level */
/*------------------------------------------------------------------------*/ 

//void zxprintf(char* fmt, ...);
//void zxsprintf(char *buffer, char* fmt, ...);
//int zxsnprintf(char *buffer, size_t s, char* fmt, ...);

/*------------------------------------------------------------------------*/ 
/* PCI structs (taken from linux/pci.h et al., but slightly modified) */
/*------------------------------------------------------------------------*/ 

struct pci_dev {
	int vendor;
	int device;
	struct pci_bus  *bus;
	int irq;
	char *slot_name;
	struct device dev;
	int base[4];
	int flags[4];
	void * data;
	void * dev_ext; // link to Windows DeviceExtension
};

struct pci_bus {
	unsigned char   number;
};

struct pci_device_id {
        __u32 vendor, device;           /* Vendor and device ID or PCI_ANY_ID*/
        __u32 subvendor, subdevice;     /* Subsystem ID's or PCI_ANY_ID */
        __u32 class, class_mask;        /* (class,subclass,prog-if) triplet */
        kernel_ulong_t driver_data;     /* Data private to the driver */
};

struct pci_driver {
        struct list_head node;
        char *name;
        const struct pci_device_id *id_table;   /* must be non-NULL for probe to be called */
        int STDCALL (*probe)  (struct pci_dev *dev, const struct pci_device_id *id);   /* New device inserted */
        void STDCALL (*remove) (struct pci_dev *dev);   /* Device removed (NULL if not a hot-plug capable driver) */
        int  (*save_state) (struct pci_dev *dev, u32 state);    /* Save Device Context */
        int  (*suspend) (struct pci_dev *dev, u32 state);       /* Device suspended */
        int  (*resume) (struct pci_dev *dev);                   /* Device woken up */
        int  (*enable_wake) (struct pci_dev *dev, u32 state, int enable);   /* Enable wake event */
};

struct scatterlist
{
	int page;
	int offset;
	int length;
};

struct usbdevfs_hub_portinfo
{
	int nports;
	int port[8];
};

/*------------------------------------------------------------------------*/ 
/* constant defines */
/*------------------------------------------------------------------------*/ 

#define TASK_UNINTERRUPTIBLE 0
#define HZ 100    /* Don't rely on that... */
#define KERN_DEBUG "DBG: "
#define KERN_ERR "ERR: "
#define KERN_WARNING "WRN: "
#define KERN_INFO "INF: "
#define GFP_KERNEL 0
#define GFP_ATOMIC 0x20
#define GFP_NOIO 0
#define SLAB_ATOMIC 0
#define PCI_ANY_ID (~0)
#define SIGKILL 9
#define THIS_MODULE 0
//#define PAGE_SIZE 4096


#define CLONE_FS 0
#define CLONE_FILES 0
#define CLONE_SIGHAND 0
#define PF_FREEZE 0
#define PF_IOTHREAD 0


#define USBDEVFS_HUB_PORTINFO 1234
#define SA_SHIRQ 0

#undef PCI_COMMAND
#define PCI_COMMAND 0
#undef PCI_COMMAND_MASTER
#define PCI_COMMAND_MASTER 0
/*------------------------------------------------------------------------*/ 
/* Module/export macros */
/*------------------------------------------------------------------------*/ 

#define MODULE_AUTHOR(a)
#define MODULE_DESCRIPTION(a)
#define MODULE_LICENSE(a)
#define MODULE_DEVICE_TABLE(type,name) void* module_table_##name=&name
#define MODULE_PARM(a,b)
#define MODULE_PARM_DESC(a,b)

#define __devinit
#define __exit
#define __init
#define __devinitdata
#define module_init(x) static void module_init_##x(void){ x();}
#define module_exit(x) void module_exit_##x(void){ x();}
#define EXPORT_SYMBOL_GPL(x)
#define EXPORT_SYMBOL(x)

#define __setup(x,y) int setup_##y=(int)y
#define subsys_initcall(x) void subsys_##x(void){x();}

/*------------------------------------------------------------------------*/ 
/* Access macros */
/*------------------------------------------------------------------------*/ 

#define dev_get_drvdata(a) (a)->driver_data
#define dev_set_drvdata(a,b) (a)->driver_data=(b)

#define __io_virt(x) ((void *)(x))
#define readl(addr) (*(volatile unsigned int *) __io_virt(addr))
#define writel(b,addr) (*(volatile unsigned int *) __io_virt(addr) = (b))
#define likely(x) (x)
#define unlikely(x) (x)
#define prefetch(x) 1

#define inw(x) READ_PORT_USHORT((PUSHORT)(x))
#define outw(x,p) WRITE_PORT_USHORT((PUSHORT)(p),(x))
#define outl(x,p) WRITE_PORT_ULONG((PULONG)(p),(x))

/* The kernel macro for list_for_each_entry makes nonsense (have no clue
 * why, this is just the same definition...) */

#undef list_for_each_entry
#define list_for_each_entry(pos, head, member)                          \
        for (pos = list_entry((head)->next, typeof(*pos), member),      \
                     prefetch(pos->member.next);                        \
             &pos->member != (head);                                    \
             pos = list_entry(pos->member.next, typeof(*pos), member),  \
                     prefetch(pos->member.next))

/*------------------------------------------------------------------------*/ 
/* function wrapper macros */
/*------------------------------------------------------------------------*/ 
#define kmalloc(x,y) ExAllocatePool(PagedPool,x)
#define kfree(x) ExFreePool(x)

//#define sprintf(a,b,format, arg...) zxsprintf((a),(b),format, ## arg)
//#define snprintf(a,b,format, arg...) zxsnprintf((a),(b),format, ##arg)
//#define printk(format, arg...) zxprintf(format, ## arg)
#define snprintf(a,b,format, arg...) _snprintf((a),(b),format, ##arg)
#define printk(format, arg...) DPRINT1(format, ## arg)
#define BUG(...) do {} while(0)

/* Locks & friends */

#define DECLARE_MUTEX(x) struct semaphore x
#define init_MUTEX(x)

#define SPIN_LOCK_UNLOCKED 0

#define spin_lock_init(a)  my_spin_lock_init(a)
void my_spin_lock_init(spinlock_t *sl);

#define spin_lock(a) my_spin_lock(a)
void my_spin_lock(spinlock_t *sl);

#define spin_unlock(a) my_spin_unlock(a)
void my_spin_unlock(spinlock_t *sl);

#define spin_lock_irqsave(a,b) b=0, my_spin_lock_irqsave(a,b)
void my_spin_lock_irqsave(spinlock_t *sl, int flags);
#define spin_unlock_irqrestore(a,b) my_spin_unlock(a)

#if 0
#define local_irq_save(x) __asm__ __volatile__("pushfl ; popl %0 ; cli":"=g" (x): /* no input */ :"memory")
#define local_irq_restore(x) __asm__ __volatile__("pushl %0 ; popfl": /* no output */ :"g" (x):"memory", "cc")
#else
#define local_irq_save(x) do {} while(0) 
#define local_irq_restore(x) do {} while(0) 
#endif

#define atomic_inc(x) *(x)+=1
#define atomic_dec(x) *(x)-=1
#define atomic_dec_and_test(x) (*(x)-=1,(*(x))==0)
#define atomic_set(x,a) *(x)=a
#define atomic_read(x) *(x)
#define ATOMIC_INIT(x) (x)

#define down(x) do {} while(0) 
#define up(x) do {} while(0)
#define down_trylock(a) 0

#define down_read(a) do {} while(0)
#define up_read(a) do {} while(0)

#define DECLARE_WAIT_QUEUE_HEAD(x) KEVENT x