/*****************************************************************************************
 Copyright (c) 2002-2004 The UbixOS Project
 All rights reserved.

 Redistribution and use in source and binary forms, with or without modification, are
 permitted provided that the following conditions are met:

 Redistributions of source code must retain the above copyright notice, this list of
 conditions, the following disclaimer and the list of authors.  Redistributions in binary
 form must reproduce the above copyright notice, this list of conditions, the following
 disclaimer and the list of authors in the documentation and/or other materials provided
 with the distribution. Neither the name of the UbixOS Project nor the names of its
 contributors may be used to endorse or promote products derived from this software
 without specific prior written permission.

 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
 EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
 THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
 OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
 TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

 $Id$

*****************************************************************************************/

#ifndef _DEVICE_H
#define _DEVICE_H

// #include <ubixos/types.h>
#include <sys/types.h>
#include "types.h"

struct device_node {
  struct device_node      *prev;
  struct device_node      *next;
  struct device_t            *devInfo;
  struct device_resource  *devRec;
  char                     type;
  int                      minor;
  };
  
struct device_resource {
  uInt8 irq;
  };

typedef struct device_t {
  int    major;
  void  *info;
  uInt32 sectors;
  int  (*read)(device_t *, void *, off_t, size_t);
  int  (*write)(device_t *, void *, off_t, size_t);
  int  (*reset)(void *);
  int  (*init)(device_t *);
  void (*ioctl)(void *);
  void (*stop)(void *);
  void (*start)(void *);
  void (*standby)(void *);
  };

#endif

/***
 $Log$
 Revision 1.1.1.1  2005/09/26 17:24:44  reddawg
 no message

 Revision 1.4  2004/09/20 00:53:04  flameshadow
 chg: UbixFS::vfs_read() now works for direct block extents
 chg: UbixFS::vfs_read() returns ~0 on error, or the size read in on success
 chg: UbixFS::root member is now a fileDescriptor
 chg: UbixFS::vfs_init() creates a file descriptor for the root dir
 chg: UbixFS::vfs_format() now sets all values in the bTreeHeader before writing
 chg: UbixFS::vfs_format() sets the inode magic number
 chg: device_t::read(device_t *, void *, off_t, size_t)
 chg: device_t::write(device_t *, void *, off_t, size_t)
 chg: vfs_abstract::vfs_read(fileDescriptor *, void *, off_t, size_t)
 chg: vfs_abstract::vfs_write(fileDescriptor *, void *, off_t, size_t)
 chg: ramDrive_read(device_t *dev,void *ptr,off_t offset,size_t length)
 chg: ramDrive_write(device_t *dev,void *ptr,off_t offset,size_t length)

 Revision 1.3  2004/09/13 15:21:26  flameshadow
 add: ramdrive.h
 chg: renamed device_t.size to sectors
 chg: made #define for size of ramdisk
 chg: calculated sectors of ramdisk and stored in the device_t struct

 Revision 1.2  2004/09/11 22:05:59  flameshadow
 chg: modified UbixFS::vfs_format() to properly init the device
 chg: modified UbixFS::vfs_init() to verify that it's a ubixfs partition
 add: added BAT blockRun in the superBlock

 Revision 1.1  2004/09/11 12:43:42  flameshadow
 add: device.h, types.h. Temporarily moved custom ubix typedefs to types.h
      (<ubixos/types.h> supercedes this file when this code is included into
      the kernel)
 chg: changed dev_t to device_interface so as to not conflict with bsd/linux
      definitions
 chg: fixed up compiler warnings in btree.cpp

 Revision 1.14  2004/08/15 00:33:02  reddawg
 Wow the ide driver works again

 Revision 1.13  2004/08/14 21:56:44  reddawg
 Added initialized byte to the device system to make it easy to add child devices which use parent hardware.

 Revision 1.12  2004/07/21 10:02:09  reddawg
 devfs: renamed functions
 device system: renamed functions
 fdc: fixed a few potential bugs and cleaned up some unused variables
 strol: fixed definition
 endtask: made it print out freepage debug info
 kmalloc: fixed a huge memory leak we had some unhandled descriptor insertion so some descriptors were lost
 ld: fixed a pointer conversion
 file: cleaned up a few unused variables
 sched: broke task deletion
 kprintf: fixed ogPrintf definition

 Revision 1.11  2004/05/22 02:40:04  ionix


 fixed typo in device.h and initialized previous in device.c :)

 Revision 1.10  2004/05/22 02:34:03  ionix


 Added proto

 Revision 1.9  2004/05/21 15:12:17  reddawg
 Cleaned up


 END
 ***/

