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- /*
- * Copyright (c) 2018, Intel Corporation
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer
- * in the documentation and/or other materials provided with the
- * distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- */
- #ifndef _LIBACPI_H
- #define _LIBACPI_H
- #include "libfdt.h"
- #pragma pack(1)
- typedef struct {
- uint32_t Signature; /* ASCII Table identifier */
- uint32_t Length; /* Length of the table, including the header */
- uint8_t Revision; /* Revision of the structure */
- uint8_t Checksum; /* Sum of all fields must be 0 */
- uint8_t OemId[6]; /* ASCII OEM identifier */
- uint64_t OemTableId; /* ASCII OEM table identifier */
- uint32_t OemRevision; /* OEM supplied revision number */
- uint32_t CreatorId; /* Vendor ID of utility creator of the table */
- uint32_t CreatorRevision; /* Revision of utility creator of the table */
- } EFI_ACPI_DESCRIPTION_HEADER;
- #pragma pack()
- /**********************************************************************/
- /* General functions */
- /**********************************************************************/
- #define acpi_get_header(acpi, field) \
- ((const EFI_ACPI_DESCRIPTION_HEADER *)(acpi))->field
- #define acpi_signature(acpi) (acpi_get_header(acpi, Signature))
- #define acpi_length(acpi) (acpi_get_header(acpi, Length))
- /* convert 2 bytes ASCII to uint16 */
- #define SIGNATURE_16(A, B) ((A) | (B << 8))
- /* convert 4 bytes ASCII to uint32 */
- #define SIGNATURE_32(A, B, C, D) ((SIGNATURE_16 (A, B)) | (SIGNATURE_16 (C, D) << 16))
- /* convert 8 bytes ASCII to uint64 */
- #define SIGNATURE_64(A, B, C, D, E, F, G, H) \
- (SIGNATURE_32 (A, B, C, D) | ((UINT64) (SIGNATURE_32 (E, F, G, H)) << 32))
- #define SSDT_MAGIC (const unsigned)SIGNATURE_32('S', 'S', 'D', 'T')
- #define DSDT_MAGIC (const unsigned)SIGNATURE_32('D', 'S', 'D', 'T')
- #define ACPI_TABLE_MAGIC 0x41435049
- /* checksum byte by byte for acpi table */
- uint8_t acpi_csum(const void *base, int n);
- #endif /* ifndef _LIBACPI_H */
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