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Diffstat (limited to 'sys/include/dev/acpi/tables.h')
| -rw-r--r-- | sys/include/dev/acpi/tables.h | 130 |
1 files changed, 130 insertions, 0 deletions
diff --git a/sys/include/dev/acpi/tables.h b/sys/include/dev/acpi/tables.h new file mode 100644 index 0000000..d5bfd52 --- /dev/null +++ b/sys/include/dev/acpi/tables.h @@ -0,0 +1,130 @@ +/* + * Copyright (c) 2023-2024 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> + +#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; +}; + +#endif /* _ACPI_TABLES_H_ */ |