1 /* 2 * Copyright (C) 2008 The Android Open Source Project 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in 12 * the documentation and/or other materials provided with the 13 * distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 16 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 17 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 18 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 19 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS 22 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 25 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #ifndef _INCLUDE_BOOT_FLASH_H_ 30 #define _INCLUDE_BOOT_FLASH_H_ 31 32 typedef struct flash_ops flash_ops; 33 typedef struct ptentry ptentry; 34 35 /* flash partitions are defined in terms of blocks 36 ** (flash erase units) 37 */ 38 struct ptentry 39 { 40 char name[16]; 41 unsigned start; 42 unsigned length; 43 unsigned flags; 44 }; 45 46 /* tools to populate and query the partition table */ 47 void flash_add_ptn(ptentry *ptn); 48 ptentry *flash_find_ptn(const char *name); 49 ptentry *flash_get_ptn(unsigned n); 50 unsigned flash_get_ptn_count(void); 51 void flash_dump_ptn(void); 52 53 int flash_init(void); 54 int flash_erase(ptentry *ptn); 55 int flash_read_ext(ptentry *ptn, unsigned extra_per_page, unsigned offset, 56 void *data, unsigned bytes); 57 #define flash_read(ptn, offset, data, bytes) flash_read_ext(ptn, 0, offset, data, bytes) 58 int flash_write(ptentry *ptn, unsigned extra_per_page, 59 const void *data, unsigned bytes); 60 #endif 61