1/* ********************************************************************* 2 * Broadcom Common Firmware Environment (CFE) 3 * 4 * Flash partition manipulation File: ptable.h 5 * 6 * Definitions and prototypes for flash partitioning. 7 * 8 ********************************************************************* 9 * 10 * Copyright 2005 11 * Broadcom Corporation. All rights reserved. 12 * 13 * This software is furnished under license and may be used and 14 * copied only in accordance with the following terms and 15 * conditions. Subject to these conditions, you may download, 16 * copy, install, use, modify and distribute modified or unmodified 17 * copies of this software in source and/or binary form. No title 18 * or ownership is transferred hereby. 19 * 20 * 1) Any source code used, modified or distributed must reproduce 21 * and retain this copyright notice and list of conditions 22 * as they appear in the source file. 23 * 24 * 2) No right is granted to use any trade name, trademark, or 25 * logo of Broadcom Corporation. The "Broadcom Corporation" 26 * name may not be used to endorse or promote products derived 27 * from this software without the prior written permission of 28 * Broadcom Corporation. 29 * 30 * 3) THIS SOFTWARE IS PROVIDED "AS-IS" AND ANY EXPRESS OR 31 * IMPLIED WARRANTIES, INCLUDING BUT NOT LIMITED TO, ANY IMPLIED 32 * WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR 33 * PURPOSE, OR NON-INFRINGEMENT ARE DISCLAIMED. IN NO EVENT 34 * SHALL BROADCOM BE LIABLE FOR ANY DAMAGES WHATSOEVER, AND IN 35 * PARTICULAR, BROADCOM SHALL NOT BE LIABLE FOR DIRECT, INDIRECT, 36 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 37 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE 38 * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 39 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 40 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR 41 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE), EVEN IF ADVISED OF 42 * THE POSSIBILITY OF SUCH DAMAGE. 43 ********************************************************************* */ 44 45 46#ifndef _PTABLE_H 47#define _PTABLE_H 48 49/* ********************************************************************* 50 * Constants 51 ********************************************************************* */ 52 53#define PTABLE_MAGIC 0x5054424C /* 'PTBL' (big-endian) */ 54 55#define PTABLE_PNAME_MAX 16 56#define PTABLE_MAX_PARTITIONS 8 57 58/* ********************************************************************* 59 * Data structures. 60 ********************************************************************* */ 61 62typedef struct partition_s { 63 char name[PTABLE_PNAME_MAX]; 64 uint32_t offset; 65 uint32_t size; 66 uint32_t type; 67 uint32_t flags; 68} partition_t; 69 70typedef struct ptable_s { 71 uint32_t magic; 72 uint32_t version; 73 uint32_t chksum; 74 uint32_t reserved; 75 partition_t part[PTABLE_MAX_PARTITIONS]; 76} ptable_t; 77 78typedef struct ptable_drv_s { 79 int (*pt_read)(ptable_t *ptbl); 80 int (*pt_write)(ptable_t *ptbl); 81} ptable_drv_t; 82 83/* ********************************************************************* 84 * Prototypes 85 ********************************************************************* */ 86 87/* Initialize and provide access functions */ 88int ptable_init(ptable_drv_t *ptbl_drv); 89 90/* Calculate checksum across entire partition table */ 91uint32_t ptable_check(ptable_t *ptbl); 92 93/* Read/write partition table */ 94int ptable_read(ptable_t *ptbl); 95int ptable_write(ptable_t *ptbl); 96 97#endif /* _PTABLE_H */ 98