mirror of
https://github.com/Rockbox/rockbox.git
synced 2025-10-13 18:17:39 -04:00
15e5237469
* 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
110 lines
3.4 KiB
C
110 lines
3.4 KiB
C
/***************************************************************************
|
|
* __________ __ ___.
|
|
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
|
|
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
|
|
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
|
|
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
|
|
* \/ \/ \/ \/ \/
|
|
* $Id$
|
|
*
|
|
* Copyright © 2009 by Rafaël Carré
|
|
*
|
|
* 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.
|
|
*
|
|
****************************************************************************/
|
|
|
|
#include "config.h"
|
|
#include "logf.h"
|
|
#include "sdmmc.h"
|
|
#include "storage.h"
|
|
|
|
static const unsigned char sd_mantissa[] = { /* *10 */
|
|
0, 10, 12, 13, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 70, 80 };
|
|
static const unsigned int sd_exponent[] = { /* use varies */
|
|
1,10,100,1000,10000,100000,1000000,10000000,100000000,1000000000 };
|
|
|
|
void sd_parse_csd(tCardInfo *card)
|
|
{
|
|
unsigned int c_size, c_mult;
|
|
const int csd_version = card_extract_bits(card->csd, 127, 2);
|
|
if(csd_version == 0)
|
|
{
|
|
/* CSD version 1.0 */
|
|
int max_read_bl_len;
|
|
|
|
c_size = card_extract_bits(card->csd, 73, 12) + 1;
|
|
c_mult = 4 << card_extract_bits(card->csd, 49, 3);
|
|
max_read_bl_len = 1 << card_extract_bits(card->csd, 83, 4);
|
|
card->numblocks = c_size * c_mult * (max_read_bl_len/512);
|
|
}
|
|
else if(csd_version == 1)
|
|
{
|
|
/* CSD version 2.0 */
|
|
c_size = card_extract_bits(card->csd, 69, 22) + 1;
|
|
card->numblocks = c_size << 10;
|
|
}
|
|
else if(csd_version == 2)
|
|
{
|
|
/* CSD version 3.0 */
|
|
c_size = card_extract_bits(card->csd, 75, 28) + 1;
|
|
card->numblocks = c_size << 10;
|
|
}
|
|
card->sd2plus = csd_version >= 1;
|
|
|
|
card->blocksize = 512; /* Always use 512 byte blocks */
|
|
|
|
card->speed = sd_mantissa[card_extract_bits(card->csd, 102, 4)] *
|
|
sd_exponent[card_extract_bits(card->csd, 98, 3) + 4];
|
|
|
|
card->nsac = 100 * card_extract_bits(card->csd, 111, 8);
|
|
|
|
card->taac = sd_mantissa[card_extract_bits(card->csd, 118, 4)] *
|
|
sd_exponent[card_extract_bits(card->csd, 114, 3)];
|
|
|
|
card->r2w_factor = card_extract_bits(card->csd, 28, 3);
|
|
|
|
|
|
|
|
logf("CSD%d.0 numblocks:%lld speed:%ld", csd_version+1, card->numblocks, card->speed);
|
|
logf("nsac: %d taac: %ld r2w: %d", card->nsac, card->taac, card->r2w_factor);
|
|
}
|
|
|
|
void sd_sleep(void)
|
|
{
|
|
}
|
|
|
|
void sd_spin(void)
|
|
{
|
|
}
|
|
|
|
void sd_spindown(int seconds)
|
|
{
|
|
(void)seconds;
|
|
}
|
|
|
|
#ifdef STORAGE_GET_INFO
|
|
void sd_get_info(IF_MD(int drive,) struct storage_info *info)
|
|
{
|
|
#ifndef HAVE_MULTIDRIVE
|
|
const int drive=0;
|
|
#endif
|
|
|
|
tCardInfo *card = card_get_info_target(drive);
|
|
|
|
info->sector_size=card->blocksize;
|
|
info->num_sectors=card->numblocks;
|
|
info->vendor="Rockbox";
|
|
#if CONFIG_STORAGE == STORAGE_SD
|
|
info->product = (drive==0) ? "Internal Storage" : "SD Card Slot";
|
|
#else /* Internal storage is not SD */
|
|
info->product = "SD Card Slot";
|
|
#endif
|
|
info->revision="0.00";
|
|
}
|
|
#endif
|