path: root/include/acpi/acrestyp.h

/******************************************************************************
 *
 * Name: acrestyp.h - Defines, types, and structures for resource descriptors
 *
 *****************************************************************************/

/*
 * Copyright (C) 2000 - 2010, 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 __ACRESTYP_H__
#define __ACRESTYP_H__

/*
 * Definitions for Resource Attributes
 */
typedef u16 acpi_rs_length;	/* Resource Length field is fixed at 16 bits */
typedef u32 acpi_rsdesc_size;	/* Max Resource Descriptor size is (Length+3) = (64_k-1)+3 */

/*
 * Memory Attributes
 */
#define ACPI_READ_ONLY_MEMORY           (u8) 0x00
#define ACPI_READ_WRITE_MEMORY          (u8) 0x01

#define ACPI_NON_CACHEABLE_MEMORY       (u8) 0x00
#define ACPI_CACHABLE_MEMORY            (u8) 0x01
#define ACPI_WRITE_COMBINING_MEMORY     (u8) 0x02
#define ACPI_PREFETCHABLE_MEMORY        (u8) 0x03

/*
 * IO Attributes
 * The ISA IO ranges are:     n000-n0_fFh, n400-n4_fFh, n800-n8_fFh, n_c00-n_cFFh.
 * The non-ISA IO ranges are: n100-n3_fFh, n500-n7_fFh, n900-n_bFFh, n_cd0-n_fFFh.
 */
#define ACPI_NON_ISA_ONLY_RANGES        (u8) 0x01
#define ACPI_ISA_ONLY_RANGES            (u8) 0x02
#define ACPI_ENTIRE_RANGE               (ACPI_NON_ISA_ONLY_RANGES | ACPI_ISA_ONLY_RANGES)

/* Type of translation - 1=Sparse, 0=Dense */

#define ACPI_SPARSE_TRANSLATION         (u8) 0x01

/*
 * IO Port Descriptor Decode
 */
#define ACPI_DECODE_10                  (u8) 0x00	/* 10-bit IO address decode */
#define ACPI_DECODE_16                  (u8) 0x01	/* 16-bit IO address decode */

/*
 * IRQ Attributes
 */
#define ACPI_LEVEL_SENSITIVE            (u8) 0x00
#define ACPI_EDGE_SENSITIVE             (u8) 0x01

#define ACPI_ACTIVE_HIGH                (u8) 0x00
#define ACPI_ACTIVE_LOW                 (u8) 0x01

#define ACPI_EXCLUSIVE                  (u8) 0x00
#define ACPI_SHARED                     (u8) 0x01

/*
 * DMA Attributes
 */
#define ACPI_COMPATIBILITY              (u8) 0x00
#define ACPI_TYPE_A                     (u8) 0x01
#define ACPI_TYPE_B                     (u8) 0x02
#define ACPI_TYPE_F                     (u8) 0x03

#define ACPI_NOT_BUS_MASTER             (u8) 0x00
#define ACPI_BUS_MASTER                 (u8) 0x01

#define ACPI_TRANSFER_8                 (u8) 0x00
#define ACPI_TRANSFER_8_16              (u8) 0x01
#define ACPI_TRANSFER_16                (u8) 0x02

/*
 * Start Dependent Functions Priority definitions
 */
#define ACPI_GOOD_CONFIGURATION         (u8) 0x00
#define ACPI_ACCEPTABLE_CONFIGURATION   (u8) 0x01
#define ACPI_SUB_OPTIMAL_CONFIGURATION  (u8) 0x02

/*
 * 16, 32 and 64-bit Address Descriptor resource types
 */
#define ACPI_MEMORY_RANGE               (u8) 0x00
#define ACPI_IO_RANGE                   (u8) 0x01
#define ACPI_BUS_NUMBER_RANGE           (u8) 0x02

#define ACPI_ADDRESS_NOT_FIXED          (u8) 0x00
#define ACPI_ADDRESS_FIXED              (u8) 0x01

#define ACPI_POS_DECODE                 (u8) 0x00
#define ACPI_SUB_DECODE                 (u8) 0x01

#define ACPI_PRODUCER                   (u8) 0x00
#define ACPI_CONSUMER                   (u8) 0x01

/*
 * If possible, pack the following structures to byte alignment
 */
#ifndef ACPI_MISALIGNMENT_NOT_SUPPORTED
#pragma pack(1)
#endif

/* UUID data structures for use in vendor-defined resource descriptors */

struct acpi_uuid {
	u8 data[ACPI_UUID_LENGTH];
};

struct acpi_vendor_uuid {
	u8 subtype;
	u8 data[ACPI_UUID_LENGTH];
};

/*
 * Structures used to describe device resources
 */
struct acpi_resource_irq {
	u8 descriptor_length;
	u8 triggering;
	u8 polarity;
	u8 sharable;
	u8 interrupt_count;
	u8 interrupts[1];
};

struct acpi_resource_dma {
	u8 type;
	u8 bus_master;
	u8 transfer;
	u8 channel_count;
	u8 channels[1];
};

struct acpi_resource_start_dependent {
	u8 descriptor_length;
	u8 compatibility_priority;
	u8 performance_robustness;
};

/*
 * The END_DEPENDENT_FUNCTIONS_RESOURCE struct is not
 * needed because it has no fields
 */

struct acpi_resource_io {
	u8 io_decode;
	u8 alignment;
	u8 address_length;
	u16 minimum;
	u16 maximum;
};

struct acpi_resource_fixed_io {
	u16 address;
	u8 address_length;
};

struct acpi_resource_vendor {
	u16 byte_length;
	u8 byte_data[1];
};

/* Vendor resource with UUID info (introduced in ACPI 3.0) */

struct acpi_resource_vendor_typed {
	u16 byte_length;
	u8 uuid_subtype;
	u8 uuid[ACPI_UUID_LENGTH];
	u8 byte_data[1];
};

struct acpi_resource_end_tag {
	u8 checksum;
};

struct acpi_resource_memory24 {
	u8 write_protect;
	u16 minimum;
	u16 maximum;
	u16 alignment;
	u16 address_length;
};

struct acpi_resource_memory32 {
	u8 write_protect;
	u32 minimum;
	u32 maximum;
	u32 alignment;
	u32 address_length;
};

struct acpi_resource_fixed_memory32 {
	u8 write_protect;
	u32 address;
	u32 address_length;
};

struct acpi_memory_attribute {
	u8 write_protect;
	u8 caching;
	u8 range_type;
	u8 translation;
};

struct acpi_io_attribute {
	u8 range_type;
	u8 translation;
	u8 translation_type;
	u8 reserved1;
};

union acpi_resource_attribute {
	struct acpi_memory_attribute mem;
	struct acpi_io_attribute io;

	/* Used for the *word_space macros */

	u8 type_specific;
};

struct acpi_resource_source {
	u8 index;
	u16 string_length;
	char *string_ptr;
};

/* Fields common to all address descriptors, 16/32/64 bit */

#define ACPI_RESOURCE_ADDRESS_COMMON \
	u8                                      resource_type; \
	u8                                      producer_consumer; \
	u8                                      decode; \
	u8                                      min_address_fixed; \
	u8                                      max_address_fixed; \
	union acpi_resource_attribute           info;

struct acpi_resource_address {
ACPI_RESOURCE_ADDRESS_COMMON};

struct acpi_resource_address16 {
	ACPI_RESOURCE_ADDRESS_COMMON u16 granularity;
	u16 minimum;
	u16 maximum;
	u16 translation_offset;
	u16 address_length;
	struct acpi_resource_source resource_source;
};

struct acpi_resource_address32 {
	ACPI_RESOURCE_ADDRESS_COMMON u32 granularity;
	u32 minimum;
	u32 maximum;
	u32 translation_offset;
	u32 address_length;
	struct acpi_resource_source resource_source;
};

struct acpi_resource_address64 {
	ACPI_RESOURCE_ADDRESS_COMMON u64 granularity;
	u64 minimum;
	u64 maximum;
	u64 translation_offset;
	u64 address_length;
	struct acpi_resource_source resource_source;
};

struct acpi_resource_extended_address64 {
	ACPI_RESOURCE_ADDRESS_COMMON u8 revision_iD;
	u64 granularity;
	u64 minimum;
	u64 maximum;
	u64 translation_offset;
	u64 address_length;
	u64 type_specific;
};

struct acpi_resource_extended_irq {
	u8 producer_consumer;
	u8 triggering;
	u8 polarity;
	u8 sharable;
	u8 interrupt_count;
	struct acpi_resource_source resource_source;
	u32 interrupts[1];
};

struct acpi_resource_generic_register {
	u8 space_id;
	u8 bit_width;
	u8 bit_offset;
	u8 access_size;
	u64 address;
};

/* ACPI_RESOURCE_TYPEs */

#define ACPI_RESOURCE_TYPE_IRQ                  0
#define ACPI_RESOURCE_TYPE_DMA                  1
#define ACPI_RESOURCE_TYPE_START_DEPENDENT      2
#define ACPI_RESOURCE_TYPE_END_DEPENDENT        3
#define ACPI_RESOURCE_TYPE_IO                   4
#define ACPI_RESOURCE_TYPE_FIXED_IO             5
#define ACPI_RESOURCE_TYPE_VENDOR               6
#define ACPI_RESOURCE_TYPE_END_TAG              7
#define ACPI_RESOURCE_TYPE_MEMORY24             8
#define ACPI_RESOURCE_TYPE_MEMORY32             9
#define ACPI_RESOURCE_TYPE_FIXED_MEMORY32       10
#define ACPI_RESOURCE_TYPE_ADDRESS16            11
#define ACPI_RESOURCE_TYPE_ADDRESS32            12
#define ACPI_RESOURCE_TYPE_ADDRESS64            13
#define ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64   14	/* ACPI 3.0 */
#define ACPI_RESOURCE_TYPE_EXTENDED_IRQ         15
#define ACPI_RESOURCE_TYPE_GENERIC_REGISTER     16
#define ACPI_RESOURCE_TYPE_MAX                  16

/* Master union for resource descriptors */

union acpi_resource_data {
	struct acpi_resource_irq irq;
	struct acpi_resource_dma dma;
	struct acpi_resource_start_dependent start_dpf;
	struct acpi_resource_io io;
	struct acpi_resource_fixed_io fixed_io;
	struct acpi_resource_vendor vendor;
	struct acpi_resource_vendor_typed vendor_typed;
	struct acpi_resource_end_tag end_tag;
	struct acpi_resource_memory24 memory24;
	struct acpi_resource_memory32 memory32;
	struct acpi_resource_fixed_memory32 fixed_memory32;
	struct acpi_resource_address16 address16;
	struct acpi_resource_address32 address32;
	struct acpi_resource_address64 address64;
	struct acpi_resource_extended_address64 ext_address64;
	struct acpi_resource_extended_irq extended_irq;
	struct acpi_resource_generic_register generic_reg;

	/* Common fields */

	struct acpi_resource_address address;	/* Common 16/32/64 address fields */
};

/* Common resource header */

struct acpi_resource {
	u32 type;
	u32 length;
	union acpi_resource_data data;
};

/* restore default alignment */

#pragma pack()

#define ACPI_RS_SIZE_NO_DATA                8	/* Id + Length fields */
#define ACPI_RS_SIZE_MIN                    (u32) ACPI_ROUND_UP_TO_NATIVE_WORD (12)
#define ACPI_RS_SIZE(type)                  (u32) (ACPI_RS_SIZE_NO_DATA + sizeof (type))

#define ACPI_NEXT_RESOURCE(res)             (struct acpi_resource *)((u8 *) res + res->length)

struct acpi_pci_routing_table {
	u32 length;
	u32 pin;
	u64 address;		/* here for 64-bit alignment */
	u32 source_index;
	char source[4];		/* pad to 64 bits so sizeof() works in all cases */
};

#endif				/* __ACRESTYP_H__ */