418 lines
18 KiB
C
418 lines
18 KiB
C
/******************************************************************************
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*
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* Name: acmacros.h - C macros for the entire subsystem.
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*
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*****************************************************************************/
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/*
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* Copyright (C) 2000 - 2016, Intel Corp.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions, and the following disclaimer,
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* without modification.
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* 2. Redistributions in binary form must reproduce at minimum a disclaimer
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* substantially similar to the "NO WARRANTY" disclaimer below
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* ("Disclaimer") and any redistribution must be conditioned upon
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* including a substantially similar Disclaimer requirement for further
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* binary redistribution.
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* 3. Neither the names of the above-listed copyright holders nor the names
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* of any contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* Alternatively, this software may be distributed under the terms of the
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* GNU General Public License ("GPL") version 2 as published by the Free
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* Software Foundation.
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*
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* NO WARRANTY
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGES.
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*/
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#ifndef __ACMACROS_H__
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#define __ACMACROS_H__
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/*
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* Extract data using a pointer. Any more than a byte and we
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* get into potential aligment issues -- see the STORE macros below.
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* Use with care.
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*/
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#define ACPI_CAST8(ptr) ACPI_CAST_PTR (u8, (ptr))
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#define ACPI_CAST16(ptr) ACPI_CAST_PTR (u16, (ptr))
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#define ACPI_CAST32(ptr) ACPI_CAST_PTR (u32, (ptr))
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#define ACPI_CAST64(ptr) ACPI_CAST_PTR (u64, (ptr))
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#define ACPI_GET8(ptr) (*ACPI_CAST8 (ptr))
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#define ACPI_GET16(ptr) (*ACPI_CAST16 (ptr))
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#define ACPI_GET32(ptr) (*ACPI_CAST32 (ptr))
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#define ACPI_GET64(ptr) (*ACPI_CAST64 (ptr))
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#define ACPI_SET8(ptr, val) (*ACPI_CAST8 (ptr) = (u8) (val))
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#define ACPI_SET16(ptr, val) (*ACPI_CAST16 (ptr) = (u16) (val))
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#define ACPI_SET32(ptr, val) (*ACPI_CAST32 (ptr) = (u32) (val))
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#define ACPI_SET64(ptr, val) (*ACPI_CAST64 (ptr) = (u64) (val))
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/*
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* printf() format helper. This macros is a workaround for the difficulties
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* with emitting 64-bit integers and 64-bit pointers with the same code
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* for both 32-bit and 64-bit hosts.
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*/
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#define ACPI_FORMAT_UINT64(i) ACPI_HIDWORD(i), ACPI_LODWORD(i)
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/*
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* Macros for moving data around to/from buffers that are possibly unaligned.
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* If the hardware supports the transfer of unaligned data, just do the store.
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* Otherwise, we have to move one byte at a time.
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*/
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#ifdef ACPI_BIG_ENDIAN
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/*
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* Macros for big-endian machines
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*/
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/* These macros reverse the bytes during the move, converting little-endian to big endian */
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/* Big Endian <== Little Endian */
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/* Hi...Lo Lo...Hi */
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/* 16-bit source, 16/32/64 destination */
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#define ACPI_MOVE_16_TO_16(d, s) {(( u8 *)(void *)(d))[0] = ((u8 *)(void *)(s))[1];\
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(( u8 *)(void *)(d))[1] = ((u8 *)(void *)(s))[0];}
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#define ACPI_MOVE_16_TO_32(d, s) {(*(u32 *)(void *)(d))=0;\
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((u8 *)(void *)(d))[2] = ((u8 *)(void *)(s))[1];\
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((u8 *)(void *)(d))[3] = ((u8 *)(void *)(s))[0];}
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#define ACPI_MOVE_16_TO_64(d, s) {(*(u64 *)(void *)(d))=0;\
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((u8 *)(void *)(d))[6] = ((u8 *)(void *)(s))[1];\
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((u8 *)(void *)(d))[7] = ((u8 *)(void *)(s))[0];}
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/* 32-bit source, 16/32/64 destination */
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#define ACPI_MOVE_32_TO_16(d, s) ACPI_MOVE_16_TO_16(d, s) /* Truncate to 16 */
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#define ACPI_MOVE_32_TO_32(d, s) {(( u8 *)(void *)(d))[0] = ((u8 *)(void *)(s))[3];\
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(( u8 *)(void *)(d))[1] = ((u8 *)(void *)(s))[2];\
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(( u8 *)(void *)(d))[2] = ((u8 *)(void *)(s))[1];\
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(( u8 *)(void *)(d))[3] = ((u8 *)(void *)(s))[0];}
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#define ACPI_MOVE_32_TO_64(d, s) {(*(u64 *)(void *)(d))=0;\
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((u8 *)(void *)(d))[4] = ((u8 *)(void *)(s))[3];\
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((u8 *)(void *)(d))[5] = ((u8 *)(void *)(s))[2];\
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((u8 *)(void *)(d))[6] = ((u8 *)(void *)(s))[1];\
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((u8 *)(void *)(d))[7] = ((u8 *)(void *)(s))[0];}
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/* 64-bit source, 16/32/64 destination */
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#define ACPI_MOVE_64_TO_16(d, s) ACPI_MOVE_16_TO_16(d, s) /* Truncate to 16 */
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#define ACPI_MOVE_64_TO_32(d, s) ACPI_MOVE_32_TO_32(d, s) /* Truncate to 32 */
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#define ACPI_MOVE_64_TO_64(d, s) {(( u8 *)(void *)(d))[0] = ((u8 *)(void *)(s))[7];\
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(( u8 *)(void *)(d))[1] = ((u8 *)(void *)(s))[6];\
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(( u8 *)(void *)(d))[2] = ((u8 *)(void *)(s))[5];\
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(( u8 *)(void *)(d))[3] = ((u8 *)(void *)(s))[4];\
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(( u8 *)(void *)(d))[4] = ((u8 *)(void *)(s))[3];\
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(( u8 *)(void *)(d))[5] = ((u8 *)(void *)(s))[2];\
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(( u8 *)(void *)(d))[6] = ((u8 *)(void *)(s))[1];\
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(( u8 *)(void *)(d))[7] = ((u8 *)(void *)(s))[0];}
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#else
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/*
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* Macros for little-endian machines
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*/
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#ifndef ACPI_MISALIGNMENT_NOT_SUPPORTED
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/* The hardware supports unaligned transfers, just do the little-endian move */
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/* 16-bit source, 16/32/64 destination */
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#define ACPI_MOVE_16_TO_16(d, s) *(u16 *)(void *)(d) = *(u16 *)(void *)(s)
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#define ACPI_MOVE_16_TO_32(d, s) *(u32 *)(void *)(d) = *(u16 *)(void *)(s)
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#define ACPI_MOVE_16_TO_64(d, s) *(u64 *)(void *)(d) = *(u16 *)(void *)(s)
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/* 32-bit source, 16/32/64 destination */
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#define ACPI_MOVE_32_TO_16(d, s) ACPI_MOVE_16_TO_16(d, s) /* Truncate to 16 */
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#define ACPI_MOVE_32_TO_32(d, s) *(u32 *)(void *)(d) = *(u32 *)(void *)(s)
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#define ACPI_MOVE_32_TO_64(d, s) *(u64 *)(void *)(d) = *(u32 *)(void *)(s)
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/* 64-bit source, 16/32/64 destination */
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#define ACPI_MOVE_64_TO_16(d, s) ACPI_MOVE_16_TO_16(d, s) /* Truncate to 16 */
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#define ACPI_MOVE_64_TO_32(d, s) ACPI_MOVE_32_TO_32(d, s) /* Truncate to 32 */
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#define ACPI_MOVE_64_TO_64(d, s) *(u64 *)(void *)(d) = *(u64 *)(void *)(s)
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#else
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/*
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* The hardware does not support unaligned transfers. We must move the
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* data one byte at a time. These macros work whether the source or
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* the destination (or both) is/are unaligned. (Little-endian move)
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*/
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/* 16-bit source, 16/32/64 destination */
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#define ACPI_MOVE_16_TO_16(d, s) {(( u8 *)(void *)(d))[0] = ((u8 *)(void *)(s))[0];\
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(( u8 *)(void *)(d))[1] = ((u8 *)(void *)(s))[1];}
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#define ACPI_MOVE_16_TO_32(d, s) {(*(u32 *)(void *)(d)) = 0; ACPI_MOVE_16_TO_16(d, s);}
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#define ACPI_MOVE_16_TO_64(d, s) {(*(u64 *)(void *)(d)) = 0; ACPI_MOVE_16_TO_16(d, s);}
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/* 32-bit source, 16/32/64 destination */
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#define ACPI_MOVE_32_TO_16(d, s) ACPI_MOVE_16_TO_16(d, s) /* Truncate to 16 */
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#define ACPI_MOVE_32_TO_32(d, s) {(( u8 *)(void *)(d))[0] = ((u8 *)(void *)(s))[0];\
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(( u8 *)(void *)(d))[1] = ((u8 *)(void *)(s))[1];\
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(( u8 *)(void *)(d))[2] = ((u8 *)(void *)(s))[2];\
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(( u8 *)(void *)(d))[3] = ((u8 *)(void *)(s))[3];}
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#define ACPI_MOVE_32_TO_64(d, s) {(*(u64 *)(void *)(d)) = 0; ACPI_MOVE_32_TO_32(d, s);}
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/* 64-bit source, 16/32/64 destination */
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#define ACPI_MOVE_64_TO_16(d, s) ACPI_MOVE_16_TO_16(d, s) /* Truncate to 16 */
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#define ACPI_MOVE_64_TO_32(d, s) ACPI_MOVE_32_TO_32(d, s) /* Truncate to 32 */
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#define ACPI_MOVE_64_TO_64(d, s) {(( u8 *)(void *)(d))[0] = ((u8 *)(void *)(s))[0];\
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(( u8 *)(void *)(d))[1] = ((u8 *)(void *)(s))[1];\
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(( u8 *)(void *)(d))[2] = ((u8 *)(void *)(s))[2];\
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(( u8 *)(void *)(d))[3] = ((u8 *)(void *)(s))[3];\
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(( u8 *)(void *)(d))[4] = ((u8 *)(void *)(s))[4];\
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(( u8 *)(void *)(d))[5] = ((u8 *)(void *)(s))[5];\
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(( u8 *)(void *)(d))[6] = ((u8 *)(void *)(s))[6];\
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(( u8 *)(void *)(d))[7] = ((u8 *)(void *)(s))[7];}
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#endif
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#endif
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/*
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* Fast power-of-two math macros for non-optimized compilers
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*/
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#define _ACPI_DIV(value, power_of2) ((u32) ((value) >> (power_of2)))
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#define _ACPI_MUL(value, power_of2) ((u32) ((value) << (power_of2)))
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#define _ACPI_MOD(value, divisor) ((u32) ((value) & ((divisor) -1)))
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#define ACPI_DIV_2(a) _ACPI_DIV(a, 1)
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#define ACPI_MUL_2(a) _ACPI_MUL(a, 1)
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#define ACPI_MOD_2(a) _ACPI_MOD(a, 2)
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#define ACPI_DIV_4(a) _ACPI_DIV(a, 2)
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#define ACPI_MUL_4(a) _ACPI_MUL(a, 2)
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#define ACPI_MOD_4(a) _ACPI_MOD(a, 4)
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#define ACPI_DIV_8(a) _ACPI_DIV(a, 3)
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#define ACPI_MUL_8(a) _ACPI_MUL(a, 3)
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#define ACPI_MOD_8(a) _ACPI_MOD(a, 8)
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#define ACPI_DIV_16(a) _ACPI_DIV(a, 4)
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#define ACPI_MUL_16(a) _ACPI_MUL(a, 4)
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#define ACPI_MOD_16(a) _ACPI_MOD(a, 16)
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#define ACPI_DIV_32(a) _ACPI_DIV(a, 5)
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#define ACPI_MUL_32(a) _ACPI_MUL(a, 5)
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#define ACPI_MOD_32(a) _ACPI_MOD(a, 32)
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/* Test for ASCII character */
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#define ACPI_IS_ASCII(c) ((c) < 0x80)
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/* Signed integers */
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#define ACPI_SIGN_POSITIVE 0
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#define ACPI_SIGN_NEGATIVE 1
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/*
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* Rounding macros (Power of two boundaries only)
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*/
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#define ACPI_ROUND_DOWN(value, boundary) (((acpi_size)(value)) & \
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(~(((acpi_size) boundary)-1)))
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#define ACPI_ROUND_UP(value, boundary) ((((acpi_size)(value)) + \
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(((acpi_size) boundary)-1)) & \
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(~(((acpi_size) boundary)-1)))
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/* Note: sizeof(acpi_size) evaluates to either 4 or 8 (32- vs 64-bit mode) */
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#define ACPI_ROUND_DOWN_TO_32BIT(a) ACPI_ROUND_DOWN(a, 4)
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#define ACPI_ROUND_DOWN_TO_64BIT(a) ACPI_ROUND_DOWN(a, 8)
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#define ACPI_ROUND_DOWN_TO_NATIVE_WORD(a) ACPI_ROUND_DOWN(a, sizeof(acpi_size))
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#define ACPI_ROUND_UP_TO_32BIT(a) ACPI_ROUND_UP(a, 4)
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#define ACPI_ROUND_UP_TO_64BIT(a) ACPI_ROUND_UP(a, 8)
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#define ACPI_ROUND_UP_TO_NATIVE_WORD(a) ACPI_ROUND_UP(a, sizeof(acpi_size))
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#define ACPI_ROUND_BITS_UP_TO_BYTES(a) ACPI_DIV_8((a) + 7)
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#define ACPI_ROUND_BITS_DOWN_TO_BYTES(a) ACPI_DIV_8((a))
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#define ACPI_ROUND_UP_TO_1K(a) (((a) + 1023) >> 10)
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/* Generic (non-power-of-two) rounding */
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#define ACPI_ROUND_UP_TO(value, boundary) (((value) + ((boundary)-1)) / (boundary))
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#define ACPI_IS_MISALIGNED(value) (((acpi_size) value) & (sizeof(acpi_size)-1))
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/*
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* Bitmask creation
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* Bit positions start at zero.
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* MASK_BITS_ABOVE creates a mask starting AT the position and above
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* MASK_BITS_BELOW creates a mask starting one bit BELOW the position
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*/
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#define ACPI_MASK_BITS_ABOVE(position) (~((ACPI_UINT64_MAX) << ((u32) (position))))
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#define ACPI_MASK_BITS_BELOW(position) ((ACPI_UINT64_MAX) << ((u32) (position)))
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/* Bitfields within ACPI registers */
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#define ACPI_REGISTER_PREPARE_BITS(val, pos, mask) \
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((val << pos) & mask)
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#define ACPI_REGISTER_INSERT_VALUE(reg, pos, mask, val) \
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reg = (reg & (~(mask))) | ACPI_REGISTER_PREPARE_BITS(val, pos, mask)
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#define ACPI_INSERT_BITS(target, mask, source) \
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target = ((target & (~(mask))) | (source & mask))
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/* Generic bitfield macros and masks */
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#define ACPI_GET_BITS(source_ptr, position, mask) \
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((*source_ptr >> position) & mask)
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#define ACPI_SET_BITS(target_ptr, position, mask, value) \
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(*target_ptr |= ((value & mask) << position))
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#define ACPI_1BIT_MASK 0x00000001
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#define ACPI_2BIT_MASK 0x00000003
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#define ACPI_3BIT_MASK 0x00000007
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#define ACPI_4BIT_MASK 0x0000000F
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#define ACPI_5BIT_MASK 0x0000001F
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#define ACPI_6BIT_MASK 0x0000003F
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#define ACPI_7BIT_MASK 0x0000007F
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#define ACPI_8BIT_MASK 0x000000FF
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#define ACPI_16BIT_MASK 0x0000FFFF
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#define ACPI_24BIT_MASK 0x00FFFFFF
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/* Macros to extract flag bits from position zero */
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#define ACPI_GET_1BIT_FLAG(value) ((value) & ACPI_1BIT_MASK)
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#define ACPI_GET_2BIT_FLAG(value) ((value) & ACPI_2BIT_MASK)
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#define ACPI_GET_3BIT_FLAG(value) ((value) & ACPI_3BIT_MASK)
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#define ACPI_GET_4BIT_FLAG(value) ((value) & ACPI_4BIT_MASK)
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/* Macros to extract flag bits from position one and above */
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#define ACPI_EXTRACT_1BIT_FLAG(field, position) (ACPI_GET_1BIT_FLAG ((field) >> position))
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#define ACPI_EXTRACT_2BIT_FLAG(field, position) (ACPI_GET_2BIT_FLAG ((field) >> position))
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#define ACPI_EXTRACT_3BIT_FLAG(field, position) (ACPI_GET_3BIT_FLAG ((field) >> position))
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#define ACPI_EXTRACT_4BIT_FLAG(field, position) (ACPI_GET_4BIT_FLAG ((field) >> position))
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/* ACPI Pathname helpers */
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#define ACPI_IS_ROOT_PREFIX(c) ((c) == (u8) 0x5C) /* Backslash */
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#define ACPI_IS_PARENT_PREFIX(c) ((c) == (u8) 0x5E) /* Carat */
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#define ACPI_IS_PATH_SEPARATOR(c) ((c) == (u8) 0x2E) /* Period (dot) */
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/*
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* An object of type struct acpi_namespace_node can appear in some contexts
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* where a pointer to an object of type union acpi_operand_object can also
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* appear. This macro is used to distinguish them.
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*
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* The "DescriptorType" field is the second field in both structures.
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*/
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#define ACPI_GET_DESCRIPTOR_PTR(d) (((union acpi_descriptor *)(void *)(d))->common.common_pointer)
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#define ACPI_SET_DESCRIPTOR_PTR(d, p) (((union acpi_descriptor *)(void *)(d))->common.common_pointer = (p))
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#define ACPI_GET_DESCRIPTOR_TYPE(d) (((union acpi_descriptor *)(void *)(d))->common.descriptor_type)
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#define ACPI_SET_DESCRIPTOR_TYPE(d, t) (((union acpi_descriptor *)(void *)(d))->common.descriptor_type = (t))
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/*
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* Macros for the master AML opcode table
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*/
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#if defined (ACPI_DISASSEMBLER) || defined (ACPI_DEBUG_OUTPUT)
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#define ACPI_OP(name, Pargs, Iargs, obj_type, class, type, flags) \
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{name, (u32)(Pargs), (u32)(Iargs), (u32)(flags), obj_type, class, type}
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#else
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#define ACPI_OP(name, Pargs, Iargs, obj_type, class, type, flags) \
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{(u32)(Pargs), (u32)(Iargs), (u32)(flags), obj_type, class, type}
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#endif
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#define ARG_TYPE_WIDTH 5
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#define ARG_1(x) ((u32)(x))
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#define ARG_2(x) ((u32)(x) << (1 * ARG_TYPE_WIDTH))
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#define ARG_3(x) ((u32)(x) << (2 * ARG_TYPE_WIDTH))
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#define ARG_4(x) ((u32)(x) << (3 * ARG_TYPE_WIDTH))
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#define ARG_5(x) ((u32)(x) << (4 * ARG_TYPE_WIDTH))
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#define ARG_6(x) ((u32)(x) << (5 * ARG_TYPE_WIDTH))
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#define ARGI_LIST1(a) (ARG_1(a))
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#define ARGI_LIST2(a, b) (ARG_1(b)|ARG_2(a))
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#define ARGI_LIST3(a, b, c) (ARG_1(c)|ARG_2(b)|ARG_3(a))
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#define ARGI_LIST4(a, b, c, d) (ARG_1(d)|ARG_2(c)|ARG_3(b)|ARG_4(a))
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#define ARGI_LIST5(a, b, c, d, e) (ARG_1(e)|ARG_2(d)|ARG_3(c)|ARG_4(b)|ARG_5(a))
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#define ARGI_LIST6(a, b, c, d, e, f) (ARG_1(f)|ARG_2(e)|ARG_3(d)|ARG_4(c)|ARG_5(b)|ARG_6(a))
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#define ARGP_LIST1(a) (ARG_1(a))
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#define ARGP_LIST2(a, b) (ARG_1(a)|ARG_2(b))
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#define ARGP_LIST3(a, b, c) (ARG_1(a)|ARG_2(b)|ARG_3(c))
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#define ARGP_LIST4(a, b, c, d) (ARG_1(a)|ARG_2(b)|ARG_3(c)|ARG_4(d))
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#define ARGP_LIST5(a, b, c, d, e) (ARG_1(a)|ARG_2(b)|ARG_3(c)|ARG_4(d)|ARG_5(e))
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#define ARGP_LIST6(a, b, c, d, e, f) (ARG_1(a)|ARG_2(b)|ARG_3(c)|ARG_4(d)|ARG_5(e)|ARG_6(f))
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#define GET_CURRENT_ARG_TYPE(list) (list & ((u32) 0x1F))
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#define INCREMENT_ARG_LIST(list) (list >>= ((u32) ARG_TYPE_WIDTH))
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/*
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* Ascii error messages can be configured out
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*/
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#ifndef ACPI_NO_ERROR_MESSAGES
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/*
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* Error reporting. Callers module and line number are inserted by AE_INFO,
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* the plist contains a set of parens to allow variable-length lists.
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* These macros are used for both the debug and non-debug versions of the code.
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*/
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#define ACPI_ERROR_NAMESPACE(s, e) acpi_ut_namespace_error (AE_INFO, s, e);
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#define ACPI_ERROR_METHOD(s, n, p, e) acpi_ut_method_error (AE_INFO, s, n, p, e);
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#define ACPI_WARN_PREDEFINED(plist) acpi_ut_predefined_warning plist
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#define ACPI_INFO_PREDEFINED(plist) acpi_ut_predefined_info plist
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#define ACPI_BIOS_ERROR_PREDEFINED(plist) acpi_ut_predefined_bios_error plist
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|
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#else
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/* No error messages */
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|
|
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#define ACPI_ERROR_NAMESPACE(s, e)
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#define ACPI_ERROR_METHOD(s, n, p, e)
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#define ACPI_WARN_PREDEFINED(plist)
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#define ACPI_INFO_PREDEFINED(plist)
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#define ACPI_BIOS_ERROR_PREDEFINED(plist)
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|
|
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#endif /* ACPI_NO_ERROR_MESSAGES */
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|
|
|
#if (!ACPI_REDUCED_HARDWARE)
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|
#define ACPI_HW_OPTIONAL_FUNCTION(addr) addr
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#else
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#define ACPI_HW_OPTIONAL_FUNCTION(addr) NULL
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#endif
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|
|
|
/*
|
|
* Macros used for ACPICA utilities only
|
|
*/
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|
|
|
/* Generate a UUID */
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|
|
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#define ACPI_INIT_UUID(a, b, c, d0, d1, d2, d3, d4, d5, d6, d7) \
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(a) & 0xFF, ((a) >> 8) & 0xFF, ((a) >> 16) & 0xFF, ((a) >> 24) & 0xFF, \
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(b) & 0xFF, ((b) >> 8) & 0xFF, \
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|
(c) & 0xFF, ((c) >> 8) & 0xFF, \
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(d0), (d1), (d2), (d3), (d4), (d5), (d6), (d7)
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|
|
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#define ACPI_IS_OCTAL_DIGIT(d) (((char)(d) >= '0') && ((char)(d) <= '7'))
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|
|
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#endif /* ACMACROS_H */
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