firmware/export/hotswap.h

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Copyright (C) 2004 by Jens Arnold
  11  *
  12  * All files in this archive are subject to the GNU General Public License.
  13  * See the file COPYING in the source tree root for full license agreement.
  14  *
  15  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  16  * KIND, either express or implied.
  17  *
  18  ****************************************************************************/
  19 #ifndef __HOTSWAP_H__
  20 #define __HOTSWAP_H__
  21
  22 typedef struct
  23 {
  24     int initialized;
  25     unsigned char bitrate_register;
  26     unsigned long read_timeout;   /* n * 8 clock cycles */
  27     unsigned long write_timeout;  /* n * 8 clock cycles */
  28
  29     unsigned long ocr;            /* OCR register */
  30     unsigned long csd[4];         /* CSD register, 16 bytes */
  31     unsigned long cid[4];         /* CID register, 16 bytes */
  32     unsigned long speed;          /* bit/s */
  33     unsigned int nsac;            /* clock cycles */
  34     unsigned long tsac;           /* n * 0.1 ns */
  35     unsigned int r2w_factor;
  36     unsigned long size;           /* size in bytes */
  37     unsigned long numblocks;      /* size in flash blocks */
  38     unsigned int blocksize;       /* block size in bytes */
  39     unsigned int block_exp;       /* block size exponent */
  40 } tCardInfo;
  41
  42 #ifdef TARGET_TREE
  43 bool       card_detect(void);
  44 tCardInfo *card_get_info(int card_no);
  45 #else /* HAVE_MMC */
  46 #include "ata_mmc.h"
  47 #define card_detect            mmc_detect
  48 #define card_get_info          mmc_card_info
  49 #define card_touched           mmc_touched
  50 #define card_enable_monitoring mmc_enable_monitoring
  51 #endif
  52
  53 /* helper function to extract n (<=32) bits from an arbitrary position.
  54    counting from MSB to LSB */
  55 unsigned long card_extract_bits(
  56         const unsigned long *p, /* the start of the bitfield array */
  57         unsigned int start,     /* bit no. to start reading  */
  58         unsigned int size);     /* how many bits to read */
  59 #endif