text: /***************************************************************************
   *             __________               __   ___.
   *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   *                     \/            \/     \/    \/            \/
   * $Id$
   *
   * Copyright (C) 2004 by Jens Arnold
   *
   * 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 __SDMMC_H__
  #define __SDMMC_H__
  
  #include <stdbool.h>
  
  typedef struct
  {  
      bool initialized;
  
      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 taac;             /* n * 0.1 ns */
      unsigned int r2w_factor;
      unsigned long numblocks;        /* size in flash blocks */
      unsigned int blocksize;         /* block size in bytes */
      unsigned long rca;              /* RCA register */
  
  #if (CONFIG_STORAGE & STORAGE_MMC)
      unsigned char bitrate_register;
  #endif
  
  #if (CONFIG_STORAGE & STORAGE_SD)
      unsigned int current_bank;
  #endif
  } tCardInfo;
  
  #if (CONFIG_STORAGE & STORAGE_SD)
  
  #include "sd.h"
  #define card_get_info          card_get_info_target
  tCardInfo *card_get_info_target(int card_no);
  void sd_parse_csd(tCardInfo *card);
  
  #else /* STORAGE_MMC */
  
  #include "ata_mmc.h"
  #define card_get_info          mmc_card_info
  tCardInfo *mmc_card_info(int card_no);
  #define card_touched           mmc_touched
  
  #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
  