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@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