type0.h

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/*
 * SPDX-License-Identifier: LGPL-2.1-or-later
 *
 * This file is part of lazybios.
 *
 * lazybios is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 2.1 of the License, or
 * (at your option) any later version.
 *
 * lazybios 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 Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with lazybios. If not, see <https://www.gnu.org/licenses/>.
 */
/**
 * @file type0.h
 * @brief Public API for SMBIOS Type 0 BIOS Information.
 * @author LazySeldi
 */
 
#ifndef LAZYBIOS_TYPE0_H
#define LAZYBIOS_TYPE0_H
 
#ifndef LAZYBIOS_SHARED_API_H
#define LAZYBIOS_TYPE_HEADER_ONLY
#include "lazybios/lazybios.h"
#undef LAZYBIOS_TYPE_HEADER_ONLY
#endif
 
#ifdef __cplusplus
extern "C" {
#endif
 
/** @brief Availability metadata for SMBIOS Type 0 fields. */
typedef struct {
    lazybiosFieldStatus_t vendor;
    lazybiosFieldStatus_t version;
    lazybiosFieldStatus_t release_date;
    lazybiosFieldStatus_t bios_starting_segment;
    lazybiosFieldStatus_t rom_size;
    lazybiosFieldStatus_t characteristics;
    lazybiosFieldStatus_t firmware_char_ext_bytes_count;
    lazybiosFieldStatus_t firmware_char_ext_bytes;
    lazybiosFieldStatus_t platform_major_release;
    lazybiosFieldStatus_t platform_minor_release;
    lazybiosFieldStatus_t ec_major_release;
    lazybiosFieldStatus_t ec_minor_release;
    lazybiosFieldStatus_t extended_rom_size;
    lazybiosFieldStatus_t unit;
} lazybiosType0FieldStatus_t;
 
/**
 * @brief Decoded forms of the Type 0 encoded fields.
 *
 * Each member holds the decoded form of the raw field it is named for.
 * Consult the matching `field_status` member before using one.
 */
typedef struct {
    uint16_t extended_rom_size;
    char extended_rom_size_unit[5];
    char* characteristics;
    char* characteristics_ext_byte1;
    char* characteristics_ext_byte2;
} lazybiosType0Decoded_t;
 
/**
 * @brief Parsed SMBIOS Type 0 BIOS Information.
 * @ingroup api_type0
 */
typedef struct {
    uint16_t handle;
    uint8_t length;
    const char* vendor;
    const char* version;
    const char* release_date;
    uint16_t bios_starting_segment;
    uint32_t rom_size;
    uint64_t characteristics;
    size_t firmware_char_ext_bytes_count;
    uint8_t* firmware_char_ext_bytes;
    uint8_t platform_major_release;
    uint8_t platform_minor_release;
    uint8_t ec_major_release;
    uint8_t ec_minor_release;
    uint16_t extended_rom_size;
    char unit[5];
    lazybiosType0Decoded_t decoded;
    lazybiosType0FieldStatus_t field_status;
} lazybiosType0_t;
 
/**
 * @brief A parsed set of SMBIOS Type 0 structures.
 * @ingroup api_type0
 */
typedef struct {
    lazybiosType0_t* entries;
    size_t count;
} lazybiosType0Array_t;
 
/** @addtogroup api_type0
 * @{
 */
 
/**
 * @brief Parses all SMBIOS Type 0 structures.
 * @param DMIData Raw DMI table container to parse.
 * @return Newly allocated set, empty when the table holds no Type 0 structure,
 *         or NULL when the arguments are unusable or an allocation fails.
 */
LAZYBIOS_WARN_UNUSED lazybiosType0Array_t* lazybiosGetType0(const lazybiosDMI_t* DMIData);
 
/**
 * @brief Releases a parsed set of SMBIOS Type 0 structures.
 * @param Type0 Set to release; may be NULL.
 */
void lazybiosFreeType0(lazybiosType0Array_t* Type0);
 
/** @} */
 
#ifdef __cplusplus
}
#endif
 
#endif