rockbox/firmware/export/hotswap.h
Michael Sevakis 1167e3c72f Accept FS#7134 - Sansa: external sd card support by Antonius Hellmann with some tweaks. All testers have given the green light. (Now for the RED ?? ;).
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@13741 a1c6a512-1295-4272-9138-f99709370657
2007-06-30 02:08:27 +00:00

59 lines
2.3 KiB
C

/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2004 by Jens Arnold
*
* 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 __HOTSWAP_H__
#define __HOTSWAP_H__
typedef struct
{
bool initialized;
unsigned char bitrate_register;
unsigned long read_timeout; /* n * 8 clock cycles */
unsigned long write_timeout; /* n * 8 clock cycles */
unsigned long ocr; /* OCR register */
unsigned long csd[4]; /* CSD register, 16 bytes */
unsigned long cid[4]; /* CID register, 16 bytes */
unsigned long speed; /* bit/s */
unsigned int nsac; /* clock cycles */
unsigned long tsac; /* n * 0.1 ns */
unsigned int r2w_factor;
unsigned long size; /* size in bytes */
unsigned long numblocks; /* size in flash blocks */
unsigned int blocksize; /* block size in bytes */
unsigned int block_exp; /* block size exponent */
} tCardInfo;
#ifdef TARGET_TREE
bool card_detect(void);
tCardInfo *card_get_info(int card_no);
#else /* HAVE_MMC */
#include "ata_mmc.h"
#define card_detect mmc_detect
#define card_get_info mmc_card_info
#define card_touched mmc_touched
#define card_enable_monitoring mmc_enable_monitoring
#endif
/* helper function to extract n (<=32) bits from an arbitrary position.
counting from MSB to LSB */
unsigned long card_extract_bits(
const unsigned long *p, /* the start of the bitfield array */
unsigned int start, /* bit no. to start reading */
unsigned int size); /* how many bits to read */
#endif