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      1 /*	$NetBSD: nand_bbt.h,v 1.2 2011/04/04 14:25:10 ahoka Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2010 Department of Software Engineering,
      5  *		      University of Szeged, Hungary
      6  * Copyright (c) 2010 Adam Hoka <ahoka (at) NetBSD.org>
      7  * All rights reserved.
      8  *
      9  * This code is derived from software contributed to The NetBSD Foundation
     10  * by the Department of Software Engineering, University of Szeged, Hungary
     11  *
     12  * Redistribution and use in source and binary forms, with or without
     13  * modification, are permitted provided that the following conditions
     14  * are met:
     15  * 1. Redistributions of source code must retain the above copyright
     16  *    notice, this list of conditions and the following disclaimer.
     17  * 2. Redistributions in binary form must reproduce the above copyright
     18  *    notice, this list of conditions and the following disclaimer in the
     19  *    documentation and/or other materials provided with the distribution.
     20  *
     21  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     22  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     23  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     24  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     25  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
     26  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     27  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
     28  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
     29  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     31  * SUCH DAMAGE.
     32  */
     33 
     34 #ifndef _NAND_BBT_H_
     35 #define _NAND_BBT_H_
     36 
     37 enum {
     38 	NAND_BBT_MARKER_FACTORY_BAD = 0x00,	/* 00 */
     39 	NAND_BBT_MARKER_WORNOUT_BAD = 0x01,	/* 01 */
     40 	NAND_BBT_MARKER_RESERVED = 0x02,	/* 10 */
     41 	NAND_BBT_MARKER_GOOD = 0x03		/* 11 */
     42 };
     43 
     44 enum {
     45 	NAND_BBT_OFFSET = 0x0e
     46 };
     47 
     48 void nand_bbt_init(device_t);
     49 void nand_bbt_detach(device_t);
     50 void nand_bbt_scan(device_t);
     51 bool nand_bbt_update(device_t);
     52 bool nand_bbt_load(device_t);
     53 void nand_bbt_block_mark(device_t, flash_off_t, uint8_t);
     54 void nand_bbt_block_markbad(device_t, flash_off_t);
     55 void nand_bbt_block_markfactorybad(device_t, flash_off_t);
     56 bool nand_bbt_block_isbad(device_t, flash_off_t);
     57 
     58 #endif
     59