firmware/export/ramdisk.h

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Copyright (C) 2002 by Alan Korr
  11  * Copyright (C) 2008 by Frank Gevaerts
  12  *
  13  * This program is free software; you can redistribute it and/or
  14  * modify it under the terms of the GNU General Public License
  15  * as published by the Free Software Foundation; either version 2
  16  * of the License, or (at your option) any later version.
  17  *
  18  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  19  * KIND, either express or implied.
  20  *
  21  ****************************************************************************/
  22 #ifndef __RAMDISK_H__
  23 #define __RAMDISK_H__
  24
  25 #include <stdbool.h>
  26 #include "mv.h" /* for HAVE_MULTIDRIVE or not */
  27
  28 struct storage_info;
  29
  30 void ramdisk_enable(bool on);
  31 void ramdisk_spindown(int seconds);
  32 void ramdisk_sleep(void);
  33 bool ramdisk_disk_is_active(void);
  34 int ramdisk_soft_reset(void);
  35 int ramdisk_init(void);
  36 void ramdisk_close(void);
  37 int ramdisk_read_sectors(IF_MD2(int drive,) unsigned long start, int count, void* buf);
  38 int ramdisk_write_sectors(IF_MD2(int drive,) unsigned long start, int count, const void* buf);
  39 void ramdisk_spin(void);
  40 void ramdisk_sleepnow(void);
  41 int ramdisk_spinup_time(void);
  42
  43 #ifdef STORAGE_GET_INFO
  44 void ramdisk_get_info(IF_MD2(int drive,) struct storage_info *info);
  45 #endif
  46
  47 long ramdisk_last_disk_activity(void);
  48
  49 #ifdef CONFIG_STORAGE_MULTI
  50 int ramdisk_num_drives(int first_drive);
  51 #endif
  52
  53 #ifdef HAVE_HOTSWAP
  54 bool ramdisk_removable(IF_MD(int drive));
  55 bool ramdisk_present(IF_MD(int drive));
  56 #endif
  57
  58 #endif