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/*****************************************************************************/
/*
* usbdevice_fs.h -- USB device file system.
*
* Copyright (C) 2000
* Thomas Sailer (sailer@ife.ee.ethz.ch)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
* History:
* 0.1 04.01.2000 Created
*
* $Id: usbdevice_fs.h,v 1.1 2000/01/06 18:40:41 tom Exp $
*/
/*****************************************************************************/
#ifndef _LINUX_USBDEVICE_FS_H
#define _LINUX_USBDEVICE_FS_H
#include <linux/types.h>
/* --------------------------------------------------------------------- */
#define USBDEVICE_SUPER_MAGIC 0x9fa2
/* usbdevfs ioctl codes */
struct usbdevfs_ctrltransfer {
__u8 requesttype;
__u8 request;
__u16 value;
__u16 index;
__u16 length;
__u32 timeout; /* in milliseconds */
void *data;
};
struct usbdevfs_bulktransfer {
unsigned int ep;
unsigned int len;
unsigned int timeout; /* in milliseconds */
void *data;
};
struct usbdevfs_setinterface {
unsigned int interface;
unsigned int altsetting;
};
struct usbdevfs_disconnectsignal {
unsigned int signr;
void *context;
};
#define USBDEVFS_MAXDRIVERNAME 255
struct usbdevfs_getdriver {
unsigned int interface;
char driver[USBDEVFS_MAXDRIVERNAME + 1];
};
struct usbdevfs_connectinfo {
unsigned int devnum;
unsigned char slow;
};
#define USBDEVFS_URB_DISABLE_SPD 1
#define USBDEVFS_URB_ISO_ASAP 2
#define USBDEVFS_URB_QUEUE_BULK 0x10
#define USBDEVFS_URB_TYPE_ISO 0
#define USBDEVFS_URB_TYPE_INTERRUPT 1
#define USBDEVFS_URB_TYPE_CONTROL 2
#define USBDEVFS_URB_TYPE_BULK 3
struct usbdevfs_iso_packet_desc {
unsigned int length;
unsigned int actual_length;
unsigned int status;
};
struct usbdevfs_urb {
unsigned char type;
unsigned char endpoint;
int status;
unsigned int flags;
void *buffer;
int buffer_length;
int actual_length;
int start_frame;
int number_of_packets;
int error_count;
unsigned int signr; /* signal to be sent on error, -1 if none should be sent */
void *usercontext;
struct usbdevfs_iso_packet_desc iso_frame_desc[0];
};
/* ioctls for talking to drivers in the usbcore module: */
struct usbdevfs_ioctl {
int ifno; /* interface 0..N ; negative numbers reserved */
int ioctl_code; /* MUST encode size + direction of data so the
* macros in <asm/ioctl.h> give correct values */
void *data; /* param buffer (in, or out) */
};
/* You can do most things with hubs just through control messages,
* except find out what device connects to what port. */
struct usbdevfs_hub_portinfo {
char nports; /* number of downstream ports in this hub */
char port [127]; /* e.g. port 3 connects to device 27 */
};
#define USBDEVFS_CONTROL _IOWR('U', 0, struct usbdevfs_ctrltransfer)
#define USBDEVFS_BULK _IOWR('U', 2, struct usbdevfs_bulktransfer)
#define USBDEVFS_RESETEP _IOR('U', 3, unsigned int)
#define USBDEVFS_SETINTERFACE _IOR('U', 4, struct usbdevfs_setinterface)
#define USBDEVFS_SETCONFIGURATION _IOR('U', 5, unsigned int)
#define USBDEVFS_GETDRIVER _IOW('U', 8, struct usbdevfs_getdriver)
#define USBDEVFS_SUBMITURB _IOR('U', 10, struct usbdevfs_urb)
#define USBDEVFS_DISCARDURB _IO('U', 11)
#define USBDEVFS_REAPURB _IOW('U', 12, void *)
#define USBDEVFS_REAPURBNDELAY _IOW('U', 13, void *)
#define USBDEVFS_DISCSIGNAL _IOR('U', 14, struct usbdevfs_disconnectsignal)
#define USBDEVFS_CLAIMINTERFACE _IOR('U', 15, unsigned int)
#define USBDEVFS_RELEASEINTERFACE _IOR('U', 16, unsigned int)
#define USBDEVFS_CONNECTINFO _IOW('U', 17, struct usbdevfs_connectinfo)
#define USBDEVFS_IOCTL _IOWR('U', 18, struct usbdevfs_ioctl)
#define USBDEVFS_HUB_PORTINFO _IOR('U', 19, struct usbdevfs_hub_portinfo)
#define USBDEVFS_RESET _IO('U', 20)
#define USBDEVFS_CLEAR_HALT _IOR('U', 21, unsigned int)
/* --------------------------------------------------------------------- */
#ifdef __KERNEL__
#include <linux/list.h>
#include <asm/semaphore.h>
/*
* inode number macros
*/
#define ITYPE(x) ((x)&(0xf<<28))
#define ISPECIAL (0<<28)
#define IBUS (1<<28)
#define IDEVICE (2<<28)
#define IBUSNR(x) (((x)>>8)&0xff)
#define IDEVNR(x) ((x)&0xff)
#define IROOT 1
/*
* sigh. rwsemaphores do not (yet) work from modules
*/
#define rw_semaphore semaphore
#define init_rwsem init_MUTEX
#define down_read down
#define down_write down
#define up_read up
#define up_write up
struct dev_state {
struct list_head list; /* state list */
struct rw_semaphore devsem; /* protects modifications to dev (dev == NULL indicating disconnect) */
struct usb_device *dev;
struct file *file;
spinlock_t lock; /* protects the async urb lists */
struct list_head async_pending;
struct list_head async_completed;
wait_queue_head_t wait; /* wake up if a request completed */
unsigned int discsignr;
struct task_struct *disctask;
void *disccontext;
unsigned long ifclaimed;
};
/* internal methods & data */
extern struct usb_driver usbdevfs_driver;
extern struct file_operations usbdevfs_drivers_fops;
extern struct file_operations usbdevfs_devices_fops;
extern struct file_operations usbdevfs_device_file_operations;
extern struct inode_operations usbdevfs_device_inode_operations;
extern struct inode_operations usbdevfs_bus_inode_operations;
extern struct file_operations usbdevfs_bus_file_operations;
extern void usbdevfs_conn_disc_event(void);
#endif /* __KERNEL__ */
/* --------------------------------------------------------------------- */
#endif /* _LINUX_USBDEVICE_FS_H */
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