- 根目录:
- drivers
- acpi
- acpica
- acmacros.h
/******************************************************************************
*
* Name: acmacros.h - C macros for the entire subsystem.
*
*****************************************************************************/
/*
* Copyright (C) 2000 - 2014, Intel Corp.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions, and the following disclaimer,
* without modification.
* 2. Redistributions in binary form must reproduce at minimum a disclaimer
* substantially similar to the "NO WARRANTY" disclaimer below
* ("Disclaimer") and any redistribution must be conditioned upon
* including a substantially similar Disclaimer requirement for further
* binary redistribution.
* 3. Neither the names of the above-listed copyright holders nor the names
* of any contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* Alternatively, this software may be distributed under the terms of the
* GNU General Public License ("GPL") version 2 as published by the Free
* Software Foundation.
*
* NO WARRANTY
* 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 MERCHANTIBILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDERS OR CONTRIBUTORS BE LIABLE FOR 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 DAMAGES.
*/
#ifndef __ACMACROS_H__
#define __ACMACROS_H__
/*
* Extract data using a pointer. Any more than a byte and we
* get into potential aligment issues -- see the STORE macros below.
* Use with care.
*/
#define ACPI_CAST8(ptr) ACPI_CAST_PTR (u8, (ptr))
#define ACPI_CAST16(ptr) ACPI_CAST_PTR (u16, (ptr))
#define ACPI_CAST32(ptr) ACPI_CAST_PTR (u32, (ptr))
#define ACPI_CAST64(ptr) ACPI_CAST_PTR (u64, (ptr))
#define ACPI_GET8(ptr) (*ACPI_CAST8 (ptr))
#define ACPI_GET16(ptr) (*ACPI_CAST16 (ptr))
#define ACPI_GET32(ptr) (*ACPI_CAST32 (ptr))
#define ACPI_GET64(ptr) (*ACPI_CAST64 (ptr))
#define ACPI_SET8(ptr, val) (*ACPI_CAST8 (ptr) = (u8) (val))
#define ACPI_SET16(ptr, val) (*ACPI_CAST16 (ptr) = (u16) (val))
#define ACPI_SET32(ptr, val) (*ACPI_CAST32 (ptr) = (u32) (val))
#define ACPI_SET64(ptr, val) (*ACPI_CAST64 (ptr) = (u64) (val))
/*
* printf() format helpers. These macros are workarounds for the difficulties
* with emitting 64-bit integers and 64-bit pointers with the same code
* for both 32-bit and 64-bit hosts.
*/
#define ACPI_FORMAT_UINT64(i) ACPI_HIDWORD(i), ACPI_LODWORD(i)
#if ACPI_MACHINE_WIDTH == 64
#define ACPI_FORMAT_NATIVE_UINT(i) ACPI_FORMAT_UINT64(i)
#define ACPI_FORMAT_TO_UINT(i) ACPI_FORMAT_UINT64(i)
#define ACPI_PRINTF_UINT "0x%8.8X%8.8X"
#else
#define ACPI_FORMAT_NATIVE_UINT(i) 0, (u32) (i)
#define ACPI_FORMAT_TO_UINT(i) (u32) (i)
#define ACPI_PRINTF_UINT "0x%8.8X"
#endif
/*
* Macros for moving data around to/from buffers that are possibly unaligned.
* If the hardware supports the transfer of unaligned data, just do the store.
* Otherwise, we have to move one byte at a time.
*/
#ifdef ACPI_BIG_ENDIAN
/*
* Macros for big-endian machines
*/
/* These macros reverse the bytes during the move, converting little-endian to big endian */
/* Big Endian <== Little Endian */
/* Hi...Lo Lo...Hi */
/* 16-bit source, 16/32/64 destination */
#define ACPI_MOVE_16_TO_16(d, s) {(( u8 *)(void *)(d))[0] = ((u8 *)(void *)(s))[1];\
(( u8 *)(void *)(d))[1] = ((u8 *)(void *)(s))[0];}
#define ACPI_MOVE_16_TO_32(d, s) {(*(u32 *)(void *)(d))=0;\
((u8 *)(void *)(d))[2] = ((u8 *)(void *)(s))[1];\
((u8 *)(void *)(d))[3] = ((u8 *)(void *)(s))[0];}
#define ACPI_MOVE_16_TO_64(d, s) {(*(u64 *)(void *)(d))=0;\
((u8 *)(void *)(d))[6] = ((u8 *)(void *)(s))[1];\
((u8 *)(void *)(d))[7] = ((u8 *)(void *)(s))[0];}
/* 32-bit source, 16/32/64 destination */
#define ACPI_MOVE_32_TO_16(d, s) ACPI_MOVE_16_TO_16(d, s) /* Truncate to 16 */
#define ACPI_MOVE_32_TO_32(d, s) {(( u8 *)(void *)(d))[0] = ((u8 *)(void *)(s))[3];\
(( u8 *)(void *)(d))[1] = ((u8 *)(void *)(s))[2];\
(( u8 *)(void *)(d))[2] = ((u8 *)(void *)(s))[1];\
(( u8 *)(void *)(d))[3] = ((u8 *)(void *)(s))[0];}
#define ACPI_MOVE_32_TO_64(d, s) {(*(u64 *)(void *)(d))=0;\
((u8 *)(void *)(d))[4] = ((u8 *)(void *)(s))[3];\
((u8 *)(void *)(d))[5] = ((u8 *)(void *)(s))[2];\
((u8 *)(void *)(d))[6] = ((u8 *)(void *)(s))[1];\
((u8 *)(void *)(d))[7] = ((u8 *)(void *)(s))[0];}
/* 64-bit source, 16/32/64 destination */
#define ACPI_MOVE_64_TO_16(d, s) ACPI_MOVE_16_TO_16(d, s) /* Truncate to 16 */
#define ACPI_MOVE_64_TO_32(d, s) ACPI_MOVE_32_TO_32(d, s) /* Truncate to 32 */
#define ACPI_MOVE_64_TO_64(d, s) {(( u8 *)(void *)(d))[0] = ((u8 *)(void *)(s))[7];\
(( u8 *)(void *)(d))[1] = ((u8 *)(void *)(s))[6];\
(( u8 *)(void *)(d))[2] = ((u8 *)(void *)(s))[5];\
(( u8 *)(void *)(d))[3] = ((u8 *)(void *)(s))[4];\
(( u8 *)(void *)(d))[4] = ((u8 *)(void *)(s))[3];\
(( u8 *)(void *)(d))[5] = ((u8 *)(void *)(s))[2];\
(( u8 *)(void *)(d))[6] = ((u8 *)(void *)(s))[1];\
(( u8 *)(void *)(d))[7] = ((u8 *)(void *)(s))[0];}
#else
/*
* Macros for little-endian machines
*/
#ifndef ACPI_MISALIGNMENT_NOT_SUPPORTED
/* The hardware supports unaligned transfers, just do the little-endian move */
/* 16-bit source, 16/32/64 destination */
#define ACPI_MOVE_16_TO_16(d, s) *(u16 *)(void *)(d) = *(u16 *)(void *)(s)
#define ACPI_MOVE_16_TO_32(d, s) *(u32 *)(void *)(d) = *(u16 *)(void *)(s)
#define ACPI_MOVE_16_TO_64(d, s) *(u64 *)(void *)(d) = *(u16 *)(void *)(s)
/* 32-bit source, 16/32/64 destination */
#define ACPI_MOVE_32_TO_16(d, s) ACPI_MOVE_16_TO_16(d, s) /* Truncate to 16 */
#define ACPI_MOVE_32_TO_32(d, s) *(u32 *)(void *)(d) = *(u32 *)(void *)(s)
#define ACPI_MOVE_32_TO_64(d, s) *(u64 *)(void *)(d) = *(u32 *)(void *)(s)
/* 64-bit source, 16/32/64 destination */
#define ACPI_MOVE_64_TO_16(d, s) ACPI_MOVE_16_TO_16(d, s) /* Truncate to 16 */
#define ACPI_MOVE_64_TO_32(d, s) ACPI_MOVE_32_TO_32(d, s) /* Truncate to 32 */
#define ACPI_MOVE_64_TO_64(d, s) *(u64 *)(void *)(d) = *(u64 *)(void *)(s)
#else
/*
* The hardware does not support unaligned transfers. We must move the
* data one byte at a time. These macros work whether the source or
* the destination (or both) is/are unaligned. (Little-endian move)
*/
/* 16-bit source, 16/32/64 destination */
#define ACPI_MOVE_16_TO_16(d, s) {(( u8 *)(void *)(d))[0] = ((u8 *)(void *)(s))[0];\
(( u8 *)(void *)(d))[1] = ((u8 *)(void *)(s))[1];}
#define ACPI_MOVE_16_TO_32(d, s) {(*(u32 *)(void *)(d)) = 0; ACPI_MOVE_16_TO_16(d, s);}
#define ACPI_MOVE_16_TO_64(d, s) {(*(u64 *)(void *)(d)) = 0; ACPI_MOVE_16_TO_16(d, s);}
/* 32-bit source, 16/32/64 destination */
#define ACPI_MOVE_32_TO_16(d, s) ACPI_MOVE_16_TO_16(d, s) /* Truncate to 16 */
#define ACPI_MOVE_32_TO_32(d, s) {(( u8 *)(void *)(d))[0] = ((u8 *)(void *)(s))[0];\
(( u8 *)(void *)(d))[1] = ((u8 *)(void *)(s))[1];\
(( u8 *)(void *)(d))[2] = ((u8 *)(void *)(s))[2];\
(( u8 *)(void *)(d))[3] = ((u8 *)(void *)(s))[3];}
#define ACPI_MOVE_32_TO_64(d, s) {(*(u64 *)(void *)(d)) = 0; ACPI_MOVE_32_TO_32(d, s);}
/* 64-bit source, 16/32/64 destination */
#define ACPI_MOVE_64_TO_16(d, s) ACPI_MOVE_16_TO_16(d, s) /* Truncate to 16 */
#define ACPI_MOVE_64_TO_32(d, s) ACPI_MOVE_32_TO_32(d, s) /* Truncate to 32 */
#define ACPI_MOVE_64_TO_64(d, s) {(( u8 *)(void *)(d))[0] = ((u8 *)(void *)(s))[0];\
(( u8 *)(void *)(d))[1] = ((u8 *)(void *)(s))[1];\
(( u8 *)(void *)(d))[2] = ((u8 *)(void *)(s))[2];\
(( u8 *)(void *)(d))[3] = ((u8 *)(void *)(s))[3];\
(( u8 *)(void *)(d))[4] = ((u8 *)(void *)(s))[4];\
(( u8 *)(void *)(d))[5] = ((u8 *)(void *)(s))[5];\
(( u8 *)(void *)(d))[6] = ((u8 *)(void *)(s))[6];\
(( u8 *)(void *)(d))[7] = ((u8 *)(void *)(s))[7];}
#endif
#endif
/*
* Fast power-of-two math macros for non-optimized compilers
*/
#define _ACPI_DIV(value, power_of2) ((u32) ((value) >> (power_of2)))
#define _ACPI_MUL(value, power_of2) ((u32) ((value) << (power_of2)))
#define _ACPI_MOD(value, divisor) ((u32) ((value) & ((divisor) -1)))
#define ACPI_DIV_2(a) _ACPI_DIV(a, 1)
#define ACPI_MUL_2(a) _ACPI_MUL(a, 1)
#define ACPI_MOD_2(a) _ACPI_MOD(a, 2)
#define ACPI_DIV_4(a) _ACPI_DIV(a, 2)
#define ACPI_MUL_4(a) _ACPI_MUL(a, 2)
#define ACPI_MOD_4(a) _ACPI_MOD(a, 4)
#define ACPI_DIV_8(a) _ACPI_DIV(a, 3)
#define ACPI_MUL_8(a) _ACPI_MUL(a, 3)
#define ACPI_MOD_8(a) _ACPI_MOD(a, 8)
#define ACPI_DIV_16(a) _ACPI_DIV(a, 4)
#define ACPI_MUL_16(a) _ACPI_MUL(a, 4)
#define ACPI_MOD_16(a) _ACPI_MOD(a, 16)
#define ACPI_DIV_32(a) _ACPI_DIV(a, 5)
#define ACPI_MUL_32(a) _ACPI_MUL(a, 5)
#define ACPI_MOD_32(a) _ACPI_MOD(a, 32)
/*
* Rounding macros (Power of two boundaries only)
*/
#define ACPI_ROUND_DOWN(value, boundary) (((acpi_size)(value)) & \
(~(((acpi_size) boundary)-1)))
#define ACPI_ROUND_UP(value, boundary) ((((acpi_size)(value)) + \
(((acpi_size) boundary)-1)) & \
(~(((acpi_size) boundary)-1)))
/* Note: sizeof(acpi_size) evaluates to either 4 or 8 (32- vs 64-bit mode) */
#define ACPI_ROUND_DOWN_TO_32BIT(a) ACPI_ROUND_DOWN(a, 4)
#define ACPI_ROUND_DOWN_TO_64BIT(a) ACPI_ROUND_DOWN(a, 8)
#define ACPI_ROUND_DOWN_TO_NATIVE_WORD(a) ACPI_ROUND_DOWN(a, sizeof(acpi_size))
#define ACPI_ROUND_UP_TO_32BIT(a) ACPI_ROUND_UP(a, 4)
#define ACPI_ROUND_UP_TO_64BIT(a) ACPI_ROUND_UP(a, 8)
#define ACPI_ROUND_UP_TO_NATIVE_WORD(a) ACPI_ROUND_UP(a, sizeof(acpi_size))
#define ACPI_ROUND_BITS_UP_TO_BYTES(a) ACPI_DIV_8((a) + 7)
#define ACPI_ROUND_BITS_DOWN_TO_BYTES(a) ACPI_DIV_8((a))
#define ACPI_ROUND_UP_TO_1K(a) (((a) + 1023) >> 10)
/* Generic (non-power-of-two) rounding */
#define ACPI_ROUND_UP_TO(value, boundary) (((value) + ((boundary)-1)) / (boundary))
#define ACPI_IS_MISALIGNED(value) (((acpi_size) value) & (sizeof(acpi_size)-1))
/*
* Bitmask creation
* Bit positions start at zero.
* MASK_BITS_ABOVE creates a mask starting AT the position and above
* MASK_BITS_BELOW creates a mask starting one bit BELOW the position
*/
#define ACPI_MASK_BITS_ABOVE(position) (~((ACPI_UINT64_MAX) << ((u32) (position))))
#define ACPI_MASK_BITS_BELOW(position) ((ACPI_UINT64_MAX) << ((u32) (position)))
/* Bitfields within ACPI registers */
#define ACPI_REGISTER_PREPARE_BITS(val, pos, mask) \
((val << pos) & mask)
#define ACPI_REGISTER_INSERT_VALUE(reg, pos, mask, val) \
reg = (reg & (~(mask))) | ACPI_REGISTER_PREPARE_BITS(val, pos, mask)
#define ACPI_INSERT_BITS(target, mask, source) \
target = ((target & (~(mask))) | (source & mask))
/* Generic bitfield macros and masks */
#define ACPI_GET_BITS(source_ptr, position, mask) \
((*source_ptr >> position) & mask)
#define ACPI_SET_BITS(target_ptr, position, mask, value) \
(*target_ptr |= ((value & mask) << position))
#define ACPI_1BIT_MASK 0x00000001
#define ACPI_2BIT_MASK 0x00000003
#define ACPI_3BIT_MASK 0x00000007
#define ACPI_4BIT_MASK 0x0000000F
#define ACPI_5BIT_MASK 0x0000001F
#define ACPI_6BIT_MASK 0x0000003F
#define ACPI_7BIT_MASK 0x0000007F
#define ACPI_8BIT_MASK 0x000000FF
#define ACPI_16BIT_MASK 0x0000FFFF
#define ACPI_24BIT_MASK 0x00FFFFFF
/* Macros to extract flag bits from position zero */
#define ACPI_GET_1BIT_FLAG(value) ((value) & ACPI_1BIT_MASK)
#define ACPI_GET_2BIT_FLAG(value) ((value) & ACPI_2BIT_MASK)
#define ACPI_GET_3BIT_FLAG(value) ((value) & ACPI_3BIT_MASK)
#define ACPI_GET_4BIT_FLAG(value) ((value) & ACPI_4BIT_MASK)
/* Macros to extract flag bits from position one and above */
#define ACPI_EXTRACT_1BIT_FLAG(field, position) (ACPI_GET_1BIT_FLAG ((field) >> position))
#define ACPI_EXTRACT_2BIT_FLAG(field, position) (ACPI_GET_2BIT_FLAG ((field) >> position))
#define ACPI_EXTRACT_3BIT_FLAG(field, position) (ACPI_GET_3BIT_FLAG ((field) >> position))
#define ACPI_EXTRACT_4BIT_FLAG(field, position) (ACPI_GET_4BIT_FLAG ((field) >> position))
/* ACPI Pathname helpers */
#define ACPI_IS_ROOT_PREFIX(c) ((c) == (u8) 0x5C) /* Backslash */
#define ACPI_IS_PARENT_PREFIX(c) ((c) == (u8) 0x5E) /* Carat */
#define ACPI_IS_PATH_SEPARATOR(c) ((c) == (u8) 0x2E) /* Period (dot) */
/*
* An object of type struct acpi_namespace_node can appear in some contexts
* where a pointer to an object of type union acpi_operand_object can also
* appear. This macro is used to distinguish them.
*
* The "DescriptorType" field is the second field in both structures.
*/
#define ACPI_GET_DESCRIPTOR_PTR(d) (((union acpi_descriptor *)(void *)(d))->common.common_pointer)
#define ACPI_SET_DESCRIPTOR_PTR(d, p) (((union acpi_descriptor *)(void *)(d))->common.common_pointer = (p))
#define ACPI_GET_DESCRIPTOR_TYPE(d) (((union acpi_descriptor *)(void *)(d))->common.descriptor_type)
#define ACPI_SET_DESCRIPTOR_TYPE(d, t) (((union acpi_descriptor *)(void *)(d))->common.descriptor_type = (t))
/*
* Macros for the master AML opcode table
*/
#if defined (ACPI_DISASSEMBLER) || defined (ACPI_DEBUG_OUTPUT)
#define ACPI_OP(name, Pargs, Iargs, obj_type, class, type, flags) \
{name, (u32)(Pargs), (u32)(Iargs), (u32)(flags), obj_type, class, type}
#else
#define ACPI_OP(name, Pargs, Iargs, obj_type, class, type, flags) \
{(u32)(Pargs), (u32)(Iargs), (u32)(flags), obj_type, class, type}
#endif
#define ARG_TYPE_WIDTH 5
#define ARG_1(x) ((u32)(x))
#define ARG_2(x) ((u32)(x) << (1 * ARG_TYPE_WIDTH))
#define ARG_3(x) ((u32)(x) << (2 * ARG_TYPE_WIDTH))
#define ARG_4(x) ((u32)(x) << (3 * ARG_TYPE_WIDTH))
#define ARG_5(x) ((u32)(x) << (4 * ARG_TYPE_WIDTH))
#define ARG_6(x) ((u32)(x) << (5 * ARG_TYPE_WIDTH))
#define ARGI_LIST1(a) (ARG_1(a))
#define ARGI_LIST2(a, b) (ARG_1(b)|ARG_2(a))
#define ARGI_LIST3(a, b, c) (ARG_1(c)|ARG_2(b)|ARG_3(a))
#define ARGI_LIST4(a, b, c, d) (ARG_1(d)|ARG_2(c)|ARG_3(b)|ARG_4(a))
#define ARGI_LIST5(a, b, c, d, e) (ARG_1(e)|ARG_2(d)|ARG_3(c)|ARG_4(b)|ARG_5(a))
#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))
#define ARGP_LIST1(a) (ARG_1(a))
#define ARGP_LIST2(a, b) (ARG_1(a)|ARG_2(b))
#define ARGP_LIST3(a, b, c) (ARG_1(a)|ARG_2(b)|ARG_3(c))
#define ARGP_LIST4(a, b, c, d) (ARG_1(a)|ARG_2(b)|ARG_3(c)|ARG_4(d))
#define ARGP_LIST5(a, b, c, d, e) (ARG_1(a)|ARG_2(b)|ARG_3(c)|ARG_4(d)|ARG_5(e))
#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))
#define GET_CURRENT_ARG_TYPE(list) (list & ((u32) 0x1F))
#define INCREMENT_ARG_LIST(list) (list >>= ((u32) ARG_TYPE_WIDTH))
/*
* Ascii error messages can be configured out
*/
#ifndef ACPI_NO_ERROR_MESSAGES
/*
* Error reporting. Callers module and line number are inserted by AE_INFO,
* the plist contains a set of parens to allow variable-length lists.
* These macros are used for both the debug and non-debug versions of the code.
*/
#define ACPI_ERROR_NAMESPACE(s, e) acpi_ut_namespace_error (AE_INFO, s, e);
#define ACPI_ERROR_METHOD(s, n, p, e) acpi_ut_method_error (AE_INFO, s, n, p, e);
#define ACPI_WARN_PREDEFINED(plist) acpi_ut_predefined_warning plist
#define ACPI_INFO_PREDEFINED(plist) acpi_ut_predefined_info plist
#define ACPI_BIOS_ERROR_PREDEFINED(plist) acpi_ut_predefined_bios_error plist
#else
/* No error messages */
#define ACPI_ERROR_NAMESPACE(s, e)
#define ACPI_ERROR_METHOD(s, n, p, e)
#define ACPI_WARN_PREDEFINED(plist)
#define ACPI_INFO_PREDEFINED(plist)
#define ACPI_BIOS_ERROR_PREDEFINED(plist)
#endif /* ACPI_NO_ERROR_MESSAGES */
#if (!ACPI_REDUCED_HARDWARE)
#define ACPI_HW_OPTIONAL_FUNCTION(addr) addr
#else
#define ACPI_HW_OPTIONAL_FUNCTION(addr) NULL
#endif
/*
* Some code only gets executed when the debugger is built in.
* Note that this is entirely independent of whether the
* DEBUG_PRINT stuff (set by ACPI_DEBUG_OUTPUT) is on, or not.
*/
#ifdef ACPI_DEBUGGER
#define ACPI_DEBUGGER_EXEC(a) a
#else
#define ACPI_DEBUGGER_EXEC(a)
#endif
/*
* Macros used for ACPICA utilities only
*/
/* Generate a UUID */
#define ACPI_INIT_UUID(a, b, c, d0, d1, d2, d3, d4, d5, d6, d7) \
(a) & 0xFF, ((a) >> 8) & 0xFF, ((a) >> 16) & 0xFF, ((a) >> 24) & 0xFF, \
(b) & 0xFF, ((b) >> 8) & 0xFF, \
(c) & 0xFF, ((c) >> 8) & 0xFF, \
(d0), (d1), (d2), (d3), (d4), (d5), (d6), (d7)
#define ACPI_IS_OCTAL_DIGIT(d) (((char)(d) >= '0') && ((char)(d) <= '7'))
#endif /* ACMACROS_H */