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/**
* Copyright (c) 2011 NVIDIA Corporation. All rights reserved.
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
/*
* nvbctlib is a library for accessing data in BCTs from different versions
* of the BootROM. This provides a means for one utility program to
* reference data which is stored differently by different versions of chips,
* often with the same header file names.
*
* In essence, nvbctlib.h defines an API for selecting chip versions and
* accessing BCT data, and a separate source file wraps the API implementation
* around the header files that are unique to a chip version.
*/
#ifndef INCLUDED_NVBCTLIB_H
#define INCLUDED_NVBCTLIB_H
#include <sys/types.h>
/*
* nvbct_lib_id defines tokens used for querying or setting values within, or
* about, the BCT. These are used to identify values within structures,
* sizes and other properties of structures, and values for enumerated
* constants.
*/
typedef enum {
nvbct_lib_id_none = 0,
nvbct_lib_id_crypto_hash,
nvbct_lib_id_random_aes_blk,
nvbct_lib_id_boot_data_version,
nvbct_lib_id_block_size_log2,
nvbct_lib_id_page_size_log2,
nvbct_lib_id_partition_size,
nvbct_lib_id_bootloader_used,
nvbct_lib_id_bootloaders_max,
nvbct_lib_id_reserved,
nvbct_lib_id_reserved_size,
nvbct_lib_id_reserved_offset,
nvbct_lib_id_bct_size,
nvbct_lib_id_hash_size,
nvbct_lib_id_crypto_offset,
nvbct_lib_id_crypto_length,
nvbct_lib_id_max_bct_search_blks,
nvbct_lib_id_bl_version,
nvbct_lib_id_bl_start_blk,
nvbct_lib_id_bl_start_page,
nvbct_lib_id_bl_length,
nvbct_lib_id_bl_load_addr,
nvbct_lib_id_bl_entry_point,
nvbct_lib_id_bl_attribute,
nvbct_lib_id_bl_crypto_hash,
nvbct_lib_id_max,
nvbct_lib_id_force32 = 0x7fffffff
} nvbct_lib_id;
typedef int (*nvbct_lib_get_bl_param)(u_int32_t set,
nvbct_lib_id id,
u_int32_t *data,
u_int8_t *bct);
typedef int (*nvbct_lib_set_bl_param)(u_int32_t set,
nvbct_lib_id id,
u_int32_t *data,
u_int8_t *bct);
typedef int (*nvbct_lib_get_value)(nvbct_lib_id id,
u_int32_t *data,
u_int8_t *bct);
typedef int (*nvbct_lib_set_value)(nvbct_lib_id id,
u_int32_t data,
u_int8_t *bct);
/*
* Note: On input, *length is the size of data. On output, *length is the
* actual size used.
*/
typedef int (*nvbct_lib_get_data)(nvbct_lib_id id,
u_int8_t *data,
u_int32_t *length,
u_int8_t *bct);
typedef int (*nvbct_lib_set_data)(nvbct_lib_id id,
u_int8_t *data,
u_int32_t length,
u_int8_t *bct);
/*
* Structure of function pointers used to access a specific BCT variant.
*/
typedef struct nvbct_lib_fns_rec
{
nvbct_lib_get_value get_value;
nvbct_lib_set_value set_value;
nvbct_lib_get_data get_data;
nvbct_lib_set_data set_data;
nvbct_lib_get_bl_param getbl_param;
nvbct_lib_set_bl_param setbl_param;
} nvbct_lib_fns;
void nvbct_lib_get_fns(nvbct_lib_fns *fns);
#endif /* #ifndef INCLUDED_NVBCTLIB_H */
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