| /****************************************************************************** |
| * |
| * Name: acmacros.h - C macros for the entire subsystem. |
| * |
| *****************************************************************************/ |
| |
| /* |
| * Copyright (C) 2000 - 2017, 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 alignment 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 helper. This macro is a workaround 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) |
| |
| /* |
| * 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) |
| |
| /* Test for ASCII character */ |
| |
| #define ACPI_IS_ASCII(c) ((c) < 0x80) |
| |
| /* Signed integers */ |
| |
| #define ACPI_SIGN_POSITIVE 0 |
| #define ACPI_SIGN_NEGATIVE 1 |
| |
| /* |
| * 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)) |
| |
| /* Generic bit manipulation */ |
| |
| #ifndef ACPI_USE_NATIVE_BIT_FINDER |
| |
| #define __ACPI_FIND_LAST_BIT_2(a, r) ((((u8) (a)) & 0x02) ? (r)+1 : (r)) |
| #define __ACPI_FIND_LAST_BIT_4(a, r) ((((u8) (a)) & 0x0C) ? \ |
| __ACPI_FIND_LAST_BIT_2 ((a)>>2, (r)+2) : \ |
| __ACPI_FIND_LAST_BIT_2 ((a), (r))) |
| #define __ACPI_FIND_LAST_BIT_8(a, r) ((((u8) (a)) & 0xF0) ? \ |
| __ACPI_FIND_LAST_BIT_4 ((a)>>4, (r)+4) : \ |
| __ACPI_FIND_LAST_BIT_4 ((a), (r))) |
| #define __ACPI_FIND_LAST_BIT_16(a, r) ((((u16) (a)) & 0xFF00) ? \ |
| __ACPI_FIND_LAST_BIT_8 ((a)>>8, (r)+8) : \ |
| __ACPI_FIND_LAST_BIT_8 ((a), (r))) |
| #define __ACPI_FIND_LAST_BIT_32(a, r) ((((u32) (a)) & 0xFFFF0000) ? \ |
| __ACPI_FIND_LAST_BIT_16 ((a)>>16, (r)+16) : \ |
| __ACPI_FIND_LAST_BIT_16 ((a), (r))) |
| #define __ACPI_FIND_LAST_BIT_64(a, r) ((((u64) (a)) & 0xFFFFFFFF00000000) ? \ |
| __ACPI_FIND_LAST_BIT_32 ((a)>>32, (r)+32) : \ |
| __ACPI_FIND_LAST_BIT_32 ((a), (r))) |
| |
| #define ACPI_FIND_LAST_BIT_8(a) ((a) ? __ACPI_FIND_LAST_BIT_8 (a, 1) : 0) |
| #define ACPI_FIND_LAST_BIT_16(a) ((a) ? __ACPI_FIND_LAST_BIT_16 (a, 1) : 0) |
| #define ACPI_FIND_LAST_BIT_32(a) ((a) ? __ACPI_FIND_LAST_BIT_32 (a, 1) : 0) |
| #define ACPI_FIND_LAST_BIT_64(a) ((a) ? __ACPI_FIND_LAST_BIT_64 (a, 1) : 0) |
| |
| #define __ACPI_FIND_FIRST_BIT_2(a, r) ((((u8) (a)) & 0x01) ? (r) : (r)+1) |
| #define __ACPI_FIND_FIRST_BIT_4(a, r) ((((u8) (a)) & 0x03) ? \ |
| __ACPI_FIND_FIRST_BIT_2 ((a), (r)) : \ |
| __ACPI_FIND_FIRST_BIT_2 ((a)>>2, (r)+2)) |
| #define __ACPI_FIND_FIRST_BIT_8(a, r) ((((u8) (a)) & 0x0F) ? \ |
| __ACPI_FIND_FIRST_BIT_4 ((a), (r)) : \ |
| __ACPI_FIND_FIRST_BIT_4 ((a)>>4, (r)+4)) |
| #define __ACPI_FIND_FIRST_BIT_16(a, r) ((((u16) (a)) & 0x00FF) ? \ |
| __ACPI_FIND_FIRST_BIT_8 ((a), (r)) : \ |
| __ACPI_FIND_FIRST_BIT_8 ((a)>>8, (r)+8)) |
| #define __ACPI_FIND_FIRST_BIT_32(a, r) ((((u32) (a)) & 0x0000FFFF) ? \ |
| __ACPI_FIND_FIRST_BIT_16 ((a), (r)) : \ |
| __ACPI_FIND_FIRST_BIT_16 ((a)>>16, (r)+16)) |
| #define __ACPI_FIND_FIRST_BIT_64(a, r) ((((u64) (a)) & 0x00000000FFFFFFFF) ? \ |
| __ACPI_FIND_FIRST_BIT_32 ((a), (r)) : \ |
| __ACPI_FIND_FIRST_BIT_32 ((a)>>32, (r)+32)) |
| |
| #define ACPI_FIND_FIRST_BIT_8(a) ((a) ? __ACPI_FIND_FIRST_BIT_8 (a, 1) : 0) |
| #define ACPI_FIND_FIRST_BIT_16(a) ((a) ? __ACPI_FIND_FIRST_BIT_16 (a, 1) : 0) |
| #define ACPI_FIND_FIRST_BIT_32(a) ((a) ? __ACPI_FIND_FIRST_BIT_32 (a, 1) : 0) |
| #define ACPI_FIND_FIRST_BIT_64(a) ((a) ? __ACPI_FIND_FIRST_BIT_64 (a, 1) : 0) |
| |
| #endif /* ACPI_USE_NATIVE_BIT_FINDER */ |
| |
| /* Generic (power-of-two) rounding */ |
| |
| #define ACPI_ROUND_UP_POWER_OF_TWO_8(a) ((u8) \ |
| (((u16) 1) << ACPI_FIND_LAST_BIT_8 ((a) - 1))) |
| #define ACPI_ROUND_DOWN_POWER_OF_TWO_8(a) ((u8) \ |
| (((u16) 1) << (ACPI_FIND_LAST_BIT_8 ((a)) - 1))) |
| #define ACPI_ROUND_UP_POWER_OF_TWO_16(a) ((u16) \ |
| (((u32) 1) << ACPI_FIND_LAST_BIT_16 ((a) - 1))) |
| #define ACPI_ROUND_DOWN_POWER_OF_TWO_16(a) ((u16) \ |
| (((u32) 1) << (ACPI_FIND_LAST_BIT_16 ((a)) - 1))) |
| #define ACPI_ROUND_UP_POWER_OF_TWO_32(a) ((u32) \ |
| (((u64) 1) << ACPI_FIND_LAST_BIT_32 ((a) - 1))) |
| #define ACPI_ROUND_DOWN_POWER_OF_TWO_32(a) ((u32) \ |
| (((u64) 1) << (ACPI_FIND_LAST_BIT_32 ((a)) - 1))) |
| #define ACPI_IS_ALIGNED(a, s) (((a) & ((s) - 1)) == 0) |
| #define ACPI_IS_POWER_OF_TWO(a) ACPI_IS_ALIGNED(a, a) |
| |
| /* |
| * 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 |
| * MASK_BITS_ABOVE/BELOW accepts a bit offset to create a mask |
| * MASK_BITS_ABOVE/BELOW_32/64 accepts a bit width to create a mask |
| * Note: The ACPI_INTEGER_BIT_SIZE check is used to bypass compiler |
| * differences with the shift operator |
| */ |
| #define ACPI_MASK_BITS_ABOVE(position) (~((ACPI_UINT64_MAX) << ((u32) (position)))) |
| #define ACPI_MASK_BITS_BELOW(position) ((ACPI_UINT64_MAX) << ((u32) (position))) |
| #define ACPI_MASK_BITS_ABOVE_32(width) ((u32) ACPI_MASK_BITS_ABOVE(width)) |
| #define ACPI_MASK_BITS_BELOW_32(width) ((u32) ACPI_MASK_BITS_BELOW(width)) |
| #define ACPI_MASK_BITS_ABOVE_64(width) ((width) == ACPI_INTEGER_BIT_SIZE ? \ |
| ACPI_UINT64_MAX : \ |
| ACPI_MASK_BITS_ABOVE(width)) |
| #define ACPI_MASK_BITS_BELOW_64(width) ((width) == ACPI_INTEGER_BIT_SIZE ? \ |
| (u64) 0 : \ |
| ACPI_MASK_BITS_BELOW(width)) |
| |
| /* 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. The 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 |
| |
| /* |
| * 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')) |
| |
| /* |
| * Macors used for the ASL-/ASL+ converter utility |
| */ |
| #ifdef ACPI_ASL_COMPILER |
| |
| #define ASL_CV_LABEL_FILENODE(a) cv_label_file_node(a); |
| #define ASL_CV_CAPTURE_COMMENTS_ONLY(a) cv_capture_comments_only (a); |
| #define ASL_CV_CAPTURE_COMMENTS(a) cv_capture_comments (a); |
| #define ASL_CV_TRANSFER_COMMENTS(a) cv_transfer_comments (a); |
| #define ASL_CV_CLOSE_PAREN(a,b) cv_close_paren_write_comment(a,b); |
| #define ASL_CV_CLOSE_BRACE(a,b) cv_close_brace_write_comment(a,b); |
| #define ASL_CV_SWITCH_FILES(a,b) cv_switch_files(a,b); |
| #define ASL_CV_CLEAR_OP_COMMENTS(a) cv_clear_op_comments(a); |
| #define ASL_CV_PRINT_ONE_COMMENT(a,b,c,d) cv_print_one_comment_type (a,b,c,d); |
| #define ASL_CV_PRINT_ONE_COMMENT_LIST(a,b) cv_print_one_comment_list (a,b); |
| #define ASL_CV_FILE_HAS_SWITCHED(a) cv_file_has_switched(a) |
| #define ASL_CV_INIT_FILETREE(a,b,c) cv_init_file_tree(a,b,c); |
| |
| #else |
| |
| #define ASL_CV_LABEL_FILENODE(a) |
| #define ASL_CV_CAPTURE_COMMENTS_ONLY(a) |
| #define ASL_CV_CAPTURE_COMMENTS(a) |
| #define ASL_CV_TRANSFER_COMMENTS(a) |
| #define ASL_CV_CLOSE_PAREN(a,b) acpi_os_printf (")"); |
| #define ASL_CV_CLOSE_BRACE(a,b) acpi_os_printf ("}"); |
| #define ASL_CV_SWITCH_FILES(a,b) |
| #define ASL_CV_CLEAR_OP_COMMENTS(a) |
| #define ASL_CV_PRINT_ONE_COMMENT(a,b,c,d) |
| #define ASL_CV_PRINT_ONE_COMMENT_LIST(a,b) |
| #define ASL_CV_FILE_HAS_SWITCHED(a) 0 |
| #define ASL_CV_INIT_FILETREE(a,b,c) |
| |
| #endif |
| |
| #endif /* ACMACROS_H */ |