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Diffstat (limited to 'nvbctlib.h')
| -rw-r--r-- | nvbctlib.h | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/nvbctlib.h b/nvbctlib.h new file mode 100644 index 0000000..6613fe0 --- /dev/null +++ b/nvbctlib.h @@ -0,0 +1,126 @@ +/** + * 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 */ |