LXR linux-old/include/linux/usbdevice

   1/*****************************************************************************/
   2
   3/*
   4 *      usbdevice_fs.h  --  USB device file system.
   5 *
   6 *      Copyright (C) 2000
   7 *          Thomas Sailer (sailer@ife.ee.ethz.ch)
   8 *
   9 *      This program is free software; you can redistribute it and/or modify
  10 *      it under the terms of the GNU General Public License as published by
  11 *      the Free Software Foundation; either version 2 of the License, or
  12 *      (at your option) any later version.
  13 *
  14 *      This program is distributed in the hope that it will be useful,
  15 *      but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 *      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 *      GNU General Public License for more details.
  18 *
  19 *      You should have received a copy of the GNU General Public License
  20 *      along with this program; if not, write to the Free Software
  21 *      Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  22 *
  23 *  History:
  24 *   0.1  04.01.2000  Created
  25 *
  26 *  $Id: usbdevice_fs.h,v 1.1 2000/01/06 18:40:41 tom Exp $
  27 */
  28
  29/*****************************************************************************/
  30
  31#ifndef _LINUX_USBDEVICE_FS_H
  32#define _LINUX_USBDEVICE_FS_H
  33
  34#include <linux/types.h>
  35
  36/* --------------------------------------------------------------------- */
  37
  38#define USBDEVICE_SUPER_MAGIC 0x9fa2
  39
  40/* usbdevfs ioctl codes */
  41
  42struct usbdevfs_ctrltransfer {
  43        __u8 requesttype;
  44        __u8 request;
  45        __u16 value;
  46        __u16 index;
  47        __u16 length;
  48        __u32 timeout;  /* in milliseconds */
  49        void *data;
  50};
  51
  52struct usbdevfs_bulktransfer {
  53        unsigned int ep;
  54        unsigned int len;
  55        unsigned int timeout; /* in milliseconds */
  56        void *data;
  57};
  58
  59struct usbdevfs_setinterface {
  60        unsigned int interface;
  61        unsigned int altsetting;
  62};
  63
  64struct usbdevfs_disconnectsignal {
  65        unsigned int signr;
  66        void *context;
  67};
  68
  69#define USBDEVFS_MAXDRIVERNAME 255
  70
  71struct usbdevfs_getdriver {
  72        unsigned int interface;
  73        char driver[USBDEVFS_MAXDRIVERNAME + 1];
  74};
  75
  76struct usbdevfs_connectinfo {
  77        unsigned int devnum;
  78        unsigned char slow;
  79};
  80
  81#define USBDEVFS_URB_DISABLE_SPD           1
  82#define USBDEVFS_URB_ISO_ASAP              2
  83#define USBDEVFS_URB_QUEUE_BULK            0x10
  84
  85#define USBDEVFS_URB_TYPE_ISO              0
  86#define USBDEVFS_URB_TYPE_INTERRUPT        1
  87#define USBDEVFS_URB_TYPE_CONTROL          2
  88#define USBDEVFS_URB_TYPE_BULK             3
  89
  90struct usbdevfs_iso_packet_desc {
  91        unsigned int length;
  92        unsigned int actual_length;
  93        unsigned int status;
  94};
  95
  96struct usbdevfs_urb {
  97        unsigned char type;
  98        unsigned char endpoint;
  99        int status;
 100        unsigned int flags;
 101        void *buffer;
 102        int buffer_length;
 103        int actual_length;
 104        int start_frame;
 105        int number_of_packets;
 106        int error_count;
 107        unsigned int signr;  /* signal to be sent on error, -1 if none should be sent */
 108        void *usercontext;
 109        struct usbdevfs_iso_packet_desc iso_frame_desc[0];
 110};
 111
 112/* ioctls for talking to drivers in the usbcore module: */
 113struct usbdevfs_ioctl {
 114        int     ifno;           /* interface 0..N ; negative numbers reserved */
 115        int     ioctl_code;     /* MUST encode size + direction of data so the
 116                                 * macros in <asm/ioctl.h> give correct values */
 117        void    *data;          /* param buffer (in, or out) */
 118};
 119
 120/* You can do most things with hubs just through control messages,
 121 * except find out what device connects to what port. */
 122struct usbdevfs_hub_portinfo {
 123        char nports;            /* number of downstream ports in this hub */
 124        char port [127];        /* e.g. port 3 connects to device 27 */
 125};
 126
 127#define USBDEVFS_CONTROL           _IOWR('U', 0, struct usbdevfs_ctrltransfer)
 128#define USBDEVFS_BULK              _IOWR('U', 2, struct usbdevfs_bulktransfer)
 129#define USBDEVFS_RESETEP           _IOR('U', 3, unsigned int)
 130#define USBDEVFS_SETINTERFACE      _IOR('U', 4, struct usbdevfs_setinterface)
 131#define USBDEVFS_SETCONFIGURATION  _IOR('U', 5, unsigned int)
 132#define USBDEVFS_GETDRIVER         _IOW('U', 8, struct usbdevfs_getdriver)
 133#define USBDEVFS_SUBMITURB         _IOR('U', 10, struct usbdevfs_urb)
 134#define USBDEVFS_DISCARDURB        _IO('U', 11)
 135#define USBDEVFS_REAPURB           _IOW('U', 12, void *)
 136#define USBDEVFS_REAPURBNDELAY     _IOW('U', 13, void *)
 137#define USBDEVFS_DISCSIGNAL        _IOR('U', 14, struct usbdevfs_disconnectsignal)
 138#define USBDEVFS_CLAIMINTERFACE    _IOR('U', 15, unsigned int)
 139#define USBDEVFS_RELEASEINTERFACE  _IOR('U', 16, unsigned int)
 140#define USBDEVFS_CONNECTINFO       _IOW('U', 17, struct usbdevfs_connectinfo)
 141#define USBDEVFS_IOCTL             _IOWR('U', 18, struct usbdevfs_ioctl)
 142#define USBDEVFS_HUB_PORTINFO      _IOR('U', 19, struct usbdevfs_hub_portinfo)
 143#define USBDEVFS_RESET             _IO('U', 20)
 144#define USBDEVFS_CLEAR_HALT        _IOR('U', 21, unsigned int)
 145#define USBDEVFS_DISCONNECT        _IO('U', 22)
 146#define USBDEVFS_CONNECT           _IO('U', 23)
 147
 148/* --------------------------------------------------------------------- */
 149
 150#ifdef __KERNEL__
 151
 152#include <linux/list.h>
 153#include <asm/semaphore.h>
 154
 155/*
 156 * inode number macros
 157 */
 158#define ITYPE(x)   ((x)&(0xf<<28))
 159#define ISPECIAL   (0<<28)
 160#define IBUS       (1<<28)
 161#define IDEVICE    (2<<28)
 162#define IBUSNR(x)  (((x)>>8)&0xff)
 163#define IDEVNR(x)  ((x)&0xff)
 164
 165#define IROOT      1
 166
 167struct dev_state {
 168        struct list_head list;      /* state list */
 169        struct rw_semaphore devsem; /* protects modifications to dev (dev == NULL indicating disconnect) */ 
 170        struct usb_device *dev;
 171        struct file *file;
 172        spinlock_t lock;            /* protects the async urb lists */
 173        struct list_head async_pending;
 174        struct list_head async_completed;
 175        wait_queue_head_t wait;     /* wake up if a request completed */
 176        unsigned int discsignr;
 177        struct task_struct *disctask;
 178        void *disccontext;
 179        unsigned long ifclaimed;
 180};
 181
 182/* internal methods & data */
 183extern struct usb_driver usbdevfs_driver;
 184extern struct file_operations usbdevfs_drivers_fops;
 185extern struct file_operations usbdevfs_devices_fops;
 186extern struct file_operations usbdevfs_device_file_operations;
 187extern struct inode_operations usbdevfs_device_inode_operations;
 188extern struct inode_operations usbdevfs_bus_inode_operations;
 189extern struct file_operations usbdevfs_bus_file_operations;
 190extern void usbdevfs_conn_disc_event(void);
 191
 192#endif /* __KERNEL__ */
 193
 194/* --------------------------------------------------------------------- */
 195#endif /* _LINUX_USBDEVICE_FS_H */
 196