firmware/export/ata.h

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Copyright (C) 2002 by Alan Korr
  11  *
  12  * This program is free software; you can redistribute it and/or
  13  * modify it under the terms of the GNU General Public License
  14  * as published by the Free Software Foundation; either version 2
  15  * of the License, or (at your option) any later version.
  16  *
  17  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  18  * KIND, either express or implied.
  19  *
  20  ****************************************************************************/
  21 #ifndef __ATA_H__
  22 #define __ATA_H__
  23
  24 #include <stdbool.h>
  25 #include "config.h" /* for HAVE_MULTIVOLUME or not */
  26 #include "mv.h" /* for IF_MV() and friends */
  27
  28 struct storage_info;
  29
  30 void ata_enable(bool on);
  31 void ata_spindown(int seconds);
  32 void ata_sleep(void);
  33 void ata_sleepnow(void);
  34 /* NOTE: DO NOT use this to poll for disk activity.
  35          If you are waiting for the disk to become active before
  36          doing something use ata_idle_notify.h
  37  */
  38 bool ata_disk_is_active(void);
  39 int ata_soft_reset(void);
  40 int ata_init(void);
  41 void ata_close(void);
  42 int ata_read_sectors(IF_MD2(int drive,) unsigned long start, int count, void* buf);
  43 int ata_write_sectors(IF_MD2(int drive,) unsigned long start, int count, const void* buf);
  44 void ata_spin(void);
  45 #if (CONFIG_LED == LED_REAL)
  46 void ata_set_led_enabled(bool enabled);
  47 #endif
  48 unsigned short* ata_get_identify(void);
  49
  50 #ifdef STORAGE_GET_INFO
  51 void ata_get_info(IF_MD2(int drive,) struct storage_info *info);
  52 #endif
  53 #ifdef HAVE_HOTSWAP
  54 bool ata_removable(IF_MD_NONVOID(int drive));
  55 bool ata_present(IF_MD_NONVOID(int drive));
  56 #endif
  57
  58
  59 #ifdef CONFIG_STORAGE_MULTI
  60 int ata_num_drives(int first_drive);
  61 #endif
  62
  63
  64 long ata_last_disk_activity(void);
  65 int ata_spinup_time(void); /* ticks */
  66
  67 #ifdef HAVE_ATA_DMA
  68 /* Needed to allow updating while waiting for DMA to complete */
  69 void ata_keep_active(void);
  70 /* Returns current DMA mode */
  71 int ata_get_dma_mode(void);
  72 /* Set DMA mode for ATA interface */
  73 void ata_dma_set_mode(unsigned char mode);
  74 /* Sets up DMA transfer */
  75 bool ata_dma_setup(void *addr, unsigned long bytes, bool write);
  76 /* Waits for DMA transfer completion */
  77 bool ata_dma_finish(void);
  78 #endif /* HAVE_ATA_DMA */
  79
  80 #endif /* __ATA_H__ */