device.h

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00001 /*****************************************************************************************
00002  Copyright (c) 2002-2004 The UbixOS Project
00003  All rights reserved.
00004 
00005  Redistribution and use in source and binary forms, with or without modification, are
00006  permitted provided that the following conditions are met:
00007 
00008  Redistributions of source code must retain the above copyright notice, this list of
00009  conditions, the following disclaimer and the list of authors.  Redistributions in binary
00010  form must reproduce the above copyright notice, this list of conditions, the following
00011  disclaimer and the list of authors in the documentation and/or other materials provided
00012  with the distribution. Neither the name of the UbixOS Project nor the names of its
00013  contributors may be used to endorse or promote products derived from this software
00014  without specific prior written permission.
00015 
00016  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
00017  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
00018  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
00019  THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
00020  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
00021  OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
00022  HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
00023  TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
00024  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
00025 
00026  $Id: ubixfsv2_2device_8h-source.html 88 2016-01-12 00:11:29Z reddawg $
00027 
00028 *****************************************************************************************/
00029 
00030 #ifndef _DEVICE_H
00031 #define _DEVICE_H
00032 
00033 // #include <ubixos/types.h>
00034 #include <sys/types.h>
00035 #include "types.h"
00036 
00037 struct device_node {
00038   struct device_node      *prev;
00039   struct device_node      *next;
00040   struct device_t            *devInfo;
00041   struct device_resource  *devRec;
00042   char                     type;
00043   int                      minor;
00044   };
00045   
00046 struct device_resource {
00047   uInt8 irq;
00048   };
00049 
00050 typedef struct device_t {
00051   int    major;
00052   void  *info;
00053   uInt32 sectors;
00054   int  (*read)(device_t *, void *, off_t, size_t);
00055   int  (*write)(device_t *, void *, off_t, size_t);
00056   int  (*reset)(void *);
00057   int  (*init)(device_t *);
00058   void (*ioctl)(void *);
00059   void (*stop)(void *);
00060   void (*start)(void *);
00061   void (*standby)(void *);
00062   };
00063 
00064 #endif
00065 
00066 /***
00067  $Log: ubixfsv2_2device_8h-source.html,v $
00067  Revision 1.4  2006/12/06 04:41:03  reddawg
00067  More syscalls implimented
00067 
00068  Revision 1.1.1.1  2006/06/01 12:46:15  reddawg
00069  ubix2
00070 
00071  Revision 1.2  2005/10/12 00:13:38  reddawg
00072  Removed
00073 
00074  Revision 1.1.1.1  2005/09/26 17:24:44  reddawg
00075  no message
00076 
00077  Revision 1.4  2004/09/20 00:53:04  flameshadow
00078  chg: UbixFS::vfs_read() now works for direct block extents
00079  chg: UbixFS::vfs_read() returns ~0 on error, or the size read in on success
00080  chg: UbixFS::root member is now a fileDescriptor
00081  chg: UbixFS::vfs_init() creates a file descriptor for the root dir
00082  chg: UbixFS::vfs_format() now sets all values in the bTreeHeader before writing
00083  chg: UbixFS::vfs_format() sets the inode magic number
00084  chg: device_t::read(device_t *, void *, off_t, size_t)
00085  chg: device_t::write(device_t *, void *, off_t, size_t)
00086  chg: vfs_abstract::vfs_read(fileDescriptor *, void *, off_t, size_t)
00087  chg: vfs_abstract::vfs_write(fileDescriptor *, void *, off_t, size_t)
00088  chg: ramDrive_read(device_t *dev,void *ptr,off_t offset,size_t length)
00089  chg: ramDrive_write(device_t *dev,void *ptr,off_t offset,size_t length)
00090 
00091  Revision 1.3  2004/09/13 15:21:26  flameshadow
00092  add: ramdrive.h
00093  chg: renamed device_t.size to sectors
00094  chg: made #define for size of ramdisk
00095  chg: calculated sectors of ramdisk and stored in the device_t struct
00096 
00097  Revision 1.2  2004/09/11 22:05:59  flameshadow
00098  chg: modified UbixFS::vfs_format() to properly init the device
00099  chg: modified UbixFS::vfs_init() to verify that it's a ubixfs partition
00100  add: added BAT blockRun in the superBlock
00101 
00102  Revision 1.1  2004/09/11 12:43:42  flameshadow
00103  add: device.h, types.h. Temporarily moved custom ubix typedefs to types.h
00104       (<ubixos/types.h> supercedes this file when this code is included into
00105       the kernel)
00106  chg: changed dev_t to device_interface so as to not conflict with bsd/linux
00107       definitions
00108  chg: fixed up compiler warnings in btree.cpp
00109 
00110  Revision 1.14  2004/08/15 00:33:02  reddawg
00111  Wow the ide driver works again
00112 
00113  Revision 1.13  2004/08/14 21:56:44  reddawg
00114  Added initialized byte to the device system to make it easy to add child devices which use parent hardware.
00115 
00116  Revision 1.12  2004/07/21 10:02:09  reddawg
00117  devfs: renamed functions
00118  device system: renamed functions
00119  fdc: fixed a few potential bugs and cleaned up some unused variables
00120  strol: fixed definition
00121  endtask: made it print out freepage debug info
00122  kmalloc: fixed a huge memory leak we had some unhandled descriptor insertion so some descriptors were lost
00123  ld: fixed a pointer conversion
00124  file: cleaned up a few unused variables
00125  sched: broke task deletion
00126  kprintf: fixed ogPrintf definition
00127 
00128  Revision 1.11  2004/05/22 02:40:04  ionix
00129 
00130 
00131  fixed typo in device.h and initialized previous in device.c :)
00132 
00133  Revision 1.10  2004/05/22 02:34:03  ionix
00134 
00135 
00136  Added proto
00137 
00138  Revision 1.9  2004/05/21 15:12:17  reddawg
00139  Cleaned up
00140 
00141 
00142  END
00143  ***/
00144 

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