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lxdream.org :: lxdream/src/drivers/osx_iokit.h
lxdream 0.9.1
released Jun 29
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filename src/drivers/osx_iokit.h
changeset 729:4cc913eabd3d
prev720:b5594d1ac80a
next736:a02d1475ccfd
author nkeynes
date Sun Jul 06 05:35:13 2008 +0000 (13 years ago)
permissions -rw-r--r--
last change Add missing svn:keywords properties
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/**
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 * $Id$
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 *
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 * General OS X IOKit support (primarily for cdrom support)
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 *
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 * Copyright (c) 2008 Nathan Keynes.
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 *
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 * This program is free software; you can redistribute it and/or modify
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 * it under the terms of the GNU General Public License as published by
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 * the Free Software Foundation; either version 2 of the License, or
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 * (at your option) any later version.
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 *
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 * This program is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 * GNU General Public License for more details.
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 */
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#ifndef lxdream_osx_iokit_H
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#define lxdream_osx_iokit_H 1
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#include <IOKit/IOKitLib.h>
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#include <IOKit/IOBSD.h>
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#include <IOKit/storage/IOStorageDeviceCharacteristics.h>
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#include <IOKit/storage/IOCDMediaBSDClient.h>
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#include "lxdream.h"
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#include "hook.h"
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/**
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 * CD-ROM drive visitor. Returns FALSE to continue iterating, TRUE if the desired CD-ROM
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 * has been found. In the latter case, the io_object is returned from find_cdrom_device
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 * (and not freed)
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 */ 
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typedef gboolean (*find_drive_callback_t)( io_object_t object, char *vendor, char *product,
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                                           char *iopath, void *user_data );
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/**
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 * Search for a CD or DVD drive (instance of IODVDServices or IOCompactDiscServices).
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 * The callback will be called repeatedly until either it returns TRUE, or all drives
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 * have been iterated over.
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 * 
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 * @return an IO registry entry for the matched drive, or 0 if no drives matched.
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 * 
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 * Note: Use of IOCompactDiscServices is somewhat tentative since I don't have a Mac
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 * with a CD-Rom drive.
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 */ 
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io_object_t find_cdrom_drive( find_drive_callback_t callback, void *user_data );
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typedef struct osx_cdrom_drive *osx_cdrom_drive_t;
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/**
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 * Construct an osx_cdrom_drive_t on the given device specification.
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 * @return a new osx_cdrom_drive_t, or NULL if the device name was invalid.
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 */
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osx_cdrom_drive_t osx_cdrom_open_drive( const char *devname );
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typedef void (*media_changed_callback_t)( osx_cdrom_drive_t drive, gboolean disc_present, void *user_data ); 
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/**
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 * Set the media changed callback for the drive. (NULL == no callback)
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 */
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void osx_cdrom_set_media_changed_callback( osx_cdrom_drive_t drive, 
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                                           media_changed_callback_t callback, 
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                                           void *user_data );
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/**
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 * Return a file handle for the cdrom drive (actually for the media).
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 * @return an open file handle, or -1 if there was no media present or
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 * the media could not be opened.
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 */
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int osx_cdrom_get_media_handle( osx_cdrom_drive_t drive );
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void osx_cdrom_release_media_handle( osx_cdrom_drive_t drive );
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/** Close on osx_cdrom_drive_t and release all associated resources.
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 */
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void osx_cdrom_close_drive( osx_cdrom_drive_t drive );
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#endif /* !lxdream_osx_iokit_H */
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