rockbox/firmware/export/ramdisk.h
Solomon Peachy 15e5237469 storage: 64-bit sector offsets
* Create new 'sector_t' type alias:
    * uint64_t for all targets with HAVE_LBA48 or HAVE_SDUC
    * unsigned long for the everything else
 * Alter all storage APIs to use sector_t instead of 'unsigned long'
 * Alter Volume/Partition/storage info structures to use sector_t
 * Disk cache converted to sector_t
 * ATA Core:
    * convert to using sector_t for sector addresses and drive sizes
    * Always fill out upper 16 bits of LBA48 addresses
    * IDENTIFY INFO is fixed at 512 bytes, not SECTOR_SIZE
 * USB mass storage:
    * convert to using sector_t for sector addesses and drive sizes
    * Implement READ_16/WRITE_16 for LBA48 addresses
 * Convert FAT code to use sector_t for all sector references
 * output_dyn_value() now accepts int64_t instead of 'int'
 * Corrected "rockbox info" to work for (MULTIVOLUME & !MULTIDRIVE)
 * Better reporting of disk and (logical+physical) sector sizes in debug info
 * Detect SDUC cards and report on storage debug_info screen

To-do: SDUC

 * Refactor SD core to remove duplicate code in every driver
   * Card probe and init state machine
 * Implement core SDUC support
   * SD2.0 needs to be 2.0+ (fixed for jz47xx and x1000)
   * Host and Card ID (ACMD41)
   * 32-bit addressing for all read/write/erase operations (CMD22)
 * ADD SDUC to target device drivers, defining HAVE_SDUC as appropriate

Change-Id: Ib0138781a0081664d11511037685503df1b93608
2024-08-12 14:23:44 -04:00

59 lines
1.9 KiB
C

/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2002 by Alan Korr
* Copyright (C) 2008 by Frank Gevaerts
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#ifndef __RAMDISK_H__
#define __RAMDISK_H__
#include <stdbool.h>
#include "config.h"
#include "mv.h" /* for HAVE_MULTIDRIVE or not */
struct storage_info;
void ramdisk_enable(bool on);
void ramdisk_spindown(int seconds);
void ramdisk_sleep(void);
bool ramdisk_disk_is_active(void);
int ramdisk_soft_reset(void);
int ramdisk_init(void) STORAGE_INIT_ATTR;
void ramdisk_close(void);
int ramdisk_read_sectors(IF_MD(int drive,) sector_t start, int count, void* buf);
int ramdisk_write_sectors(IF_MD(int drive,) sector_t start, int count, const void* buf);
void ramdisk_spin(void);
void ramdisk_sleepnow(void);
int ramdisk_spinup_time(void);
#ifdef STORAGE_GET_INFO
void ramdisk_get_info(IF_MD(int drive,) struct storage_info *info);
#endif
long ramdisk_last_disk_activity(void);
#ifdef CONFIG_STORAGE_MULTI
int ramdisk_num_drives(int first_drive);
#endif
#ifdef HAVE_HOTSWAP
bool ramdisk_removable(IF_MD(int drive));
bool ramdisk_present(IF_MD(int drive));
#endif
#endif