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/*
* Copyright (c) 2023-2025 Ian Marco Moffett and the Osmora Team.
* 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.
* 2. 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.
* 3. Neither the name of Hyra nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* 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 _ACPI_TABLES_H_
#define _ACPI_TABLES_H_
#include <sys/types.h>
#include <sys/cdefs.h>
/* MADT APIC header types */
#define APIC_TYPE_LOCAL_APIC 0
#define APIC_TYPE_IO_APIC 1
#define APIC_TYPE_INTERRUPT_OVERRIDE 2
#define OEMID_SIZE 6
struct __packed acpi_header {
char signature[4]; /* ASCII signature string */
uint32_t length; /* Length of table in bytes */
uint8_t revision; /* Revision of the structure */
uint8_t checksum; /* Checksum of the header */
char oemid[OEMID_SIZE]; /* OEM-supplied string that IDs the OEM */
char oem_table_id[8]; /* OEM-supplied string (used by OEM) */
uint32_t oem_revision; /* OEM-supplied revision number */
uint32_t creator_id; /* Vendor ID of creator utility */
uint32_t creator_revision; /* Revision of creator utility */
};
struct __packed acpi_rsdp {
uint64_t signature; /* RSD PTR */
uint8_t checksum; /* Structure checksum */
char oemid[OEMID_SIZE]; /* OEM-supplied string that IDs the OEM */
uint8_t revision; /* Revision of the structure */
uint32_t rsdt_addr; /* RSDT physical address */
/* Reserved if revision < 2 */
uint32_t length; /* Length of table in bytes */
uint64_t xsdt_addr; /* XSDT physical address */
uint8_t ext_checksum; /* Extended checksum */
uint8_t reserved[3];
};
/*
* XSDT or RSDT depending
* on what revision the header
* says.
*/
struct __packed acpi_root_sdt {
struct acpi_header hdr;
uint32_t tables[];
};
struct __packed acpi_madt {
struct acpi_header hdr;
uint32_t lapic_addr;
uint32_t flags;
};
struct __packed apic_header {
uint8_t type;
uint8_t length;
};
struct __packed local_apic {
struct apic_header hdr;
uint8_t processor_id;
uint8_t apic_id;
uint32_t flags;
};
struct __packed ioapic {
struct apic_header hdr;
uint8_t ioapic_id;
uint8_t reserved;
uint32_t ioapic_addr;
uint32_t gsi_base;
};
struct __packed interrupt_override {
struct apic_header hdr;
uint8_t bus;
uint8_t source; /* IRQ */
uint32_t interrupt; /* GSI */
uint16_t flags;
};
struct __packed acpi_gas {
uint8_t address_space_id;
uint8_t register_bit_width;
uint8_t register_bit_offset;
uint8_t reserved;
uint64_t address;
};
struct __packed acpi_hpet {
struct acpi_header hdr;
uint8_t hardware_rev_id;
uint8_t comparator_count : 5;
uint8_t counter_size : 1;
uint8_t reserved : 1;
uint8_t legacy_replacement : 1;
uint16_t pci_vendor_id;
struct acpi_gas gas;
uint8_t hpet_number;
uint16_t minimum_tick;
uint8_t page_protection;
};
/*
* PCIe / ACPI MCFG base address description
* table.
*
* @base_pa: Enhanced configuration base [physical]
* @seg_grpno: PCI segment group number
* @bus_start: Host bridge bus start
* @bus_end: Host bridge bus end
*/
struct __packed acpi_mcfg_base {
uint64_t base_pa;
uint16_t seg_grpno;
uint8_t bus_start;
uint8_t bus_end;
uint32_t reserved;
};
/*
* PCIe / ACPI MCFG structure
*
* @hdr: ACPI header
* @reserved: Do not use
* @base: ECAM MMIO address list
*/
struct __packed acpi_mcfg {
struct acpi_header hdr;
uint32_t reserved[2];
struct acpi_mcfg_base base[1];
};
struct __packed dmi_entry32 {
char signature[4]; /* _SM_ */
uint8_t checksum; /* Sum of table bytes */
uint8_t length; /* Length of entry table */
uint8_t major; /* DMI major */
uint8_t minor; /* DMI minor */
uint16_t max_size; /* Max structure size */
uint8_t rev; /* Entry revision */
char fmt_area[5]; /* Formatted area */
char isignature[5]; /* Intermediate signature */
uint8_t ichecksum; /* Intermediate checksum */
uint16_t table_len; /* Length of SMBIOS structure table */
uint32_t addr; /* 32-bit physical start of SMBIOS structure table */
uint16_t nstruct; /* Total number of structures */
uint8_t bcd_rev;
};
struct __packed dmi_entry64 {
char signature[5]; /* _SM_ */
uint8_t checksum; /* Sum of table bytes */
uint8_t length; /* Length of entry table */
uint8_t major; /* DMI major */
uint8_t minor; /* DMI minor */
uint8_t docrev;
uint8_t entry_rev;
uint8_t reserved;
uint16_t max_size; /* Max structure size */
uint16_t padding;
uint64_t addr; /* 64-bit physical address */
};
#endif /* _ACPI_TABLES_H_ */
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