rockbox/firmware/export/ata_idle_notify.h

58 lines
2.1 KiB
C

/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2006 Jonathan Gordon
*
* All files in this archive are subject to the GNU General Public License.
* See the file COPYING in the source tree root for full license agreement.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#ifndef __ATACALLBACK_H__
#define __ATACALLBACK_H__
#include <stdbool.h>
#include "events.h"
#if 0
NOTE: ata_idle_nofity usage notes..
1) the callbacks are called in the ata thread, not main/your thread.
2) Asyncronous callbacks (like the buffer refill) should be avoided.
If you must use an async callback, remember to check ata_is_active() before
accessing the disk, and nonot call any functions between that check and the
disk access which may cause a yield (lcd_update() does this!)
3) Do not call cany yielding functions in the callback
4) Do not call ata_sleep in the callbacks
5) Dont Panic!
#endif
enum {
DISK_EVENT_SPINUP = (EVENT_CLASS_DISK|1),
};
#define USING_ATA_CALLBACK !defined(SIMULATOR) \
&& !defined(HAVE_FLASH_DISK)
typedef bool (*ata_idle_notify)(void);
extern void register_ata_idle_func(ata_idle_notify function);
#if USING_ATA_CALLBACK
extern void unregister_ata_idle_func(ata_idle_notify function, bool run);
extern bool call_ata_idle_notifys(bool force);
#else
#define unregister_ata_idle_func(f,r)
#define call_ata_idle_notifys(f)
#define ata_idle_notify_init(s)
#endif
#endif /* __ATACALLBACK_H__ */