www.pudn.com > efs.rar > fs_logr.h

/*===========================================================================

  fs_logr.c -  Log region handling.

  This module supports logging to a separate region in flash.

  Copyright (c) 2003, 2004, 2005 by QUALCOMM Incorporated. All Rights Reserved.

                        EDIT HISTORY FOR MODULE

  This section contains comments describing changes made to the module.
  Notice that changes are listed in reverse chronological order.



  $Header: //depot/asic/MSMSHARED/services/efs/MSM_EFS.01.02/fs_logr.h#5 $ $DateTime: 2006/08/23 13:00:38 $ $Author: davidb $

when          who     what, where, why
--------      ---     ------------------------------------------------------
2005-12-14    sh      Expand Log Region from 8 to 32 blocks.
2005-01-04    dlb     Update copyright line.
2004-12-30    dlb     Remove excess infiltration of factory image code.
2004-10-15    dlb     Update copyright line.
2004-10-07    dlb     Whitespace cleanup.
2003-06-12    dlb     Added factory start up code.
2003-03-07    dlb     Added fs_logr_peek_alloc().
2003-02-28    dlb     Created.
===========================================================================*/

#ifndef __FS_LOGR_H__
#define __FS_LOGR_H__

#include "customer.h"
#include "fs_pm_log.h"
#include "fs_pm_super.h"

struct fs_logr_data;
typedef struct fs_logr_data *fs_logr_t;

/* Initialize */
void fs_logr_init (
    fs_logr_t           logr,
    fs_super_t          super,
    int                 fresh_start);

page_id fs_logr_alloc (fs_logr_t logr);

void fs_logr_iterate (fs_logr_t logr, fs_log_t log,
    void (*visit) (void *priv, fs_log_code_t code, uint32 *args),
    void *priv);

page_id fs_logr_peek_alloc (fs_logr_t logr);

#define FS_LOGR_MAX_LOG_BLOCKS  32

struct fs_logr_data {
  fs_super_t            super;
  block_id              block_base;

  /* Parameters. */

  /* Boundaries of the log region, in pages.  [stop] is 1 past the end of
   * the log region. */
  page_id               start, stop;

  block_id              write_block;
  page_id               write_page;
};

#endif /* __FS_LOGR_H__ */