mirror of
https://git.stationery.faith/corn/corn.git
synced 2024-09-19 16:01:42 +00:00
178 lines
3.5 KiB
C
178 lines
3.5 KiB
C
#pragma once
|
|
|
|
#include <stdint.h>
|
|
|
|
#ifndef ACPI_INTERNAL
|
|
#error "Do not include <sys/acpi.h>, only use <acpi.h>"
|
|
#endif
|
|
|
|
struct acpi_header {
|
|
uint32_t signature;
|
|
uint32_t length;
|
|
uint8_t revision;
|
|
uint8_t checksum;
|
|
uint8_t oem_id[6];
|
|
uint8_t oem_table_id[8];
|
|
uint32_t oem_revision;
|
|
uint32_t creator_id;
|
|
uint32_t creator_revision;
|
|
} __attribute__((packed));
|
|
|
|
// root system descriptor pointer
|
|
// ACPI 1.0
|
|
struct rsdp {
|
|
uint8_t signature[8];
|
|
uint8_t checksum;
|
|
uint8_t oemid[6];
|
|
uint8_t revision;
|
|
uint32_t rsdt_addr;
|
|
} __attribute__((packed));
|
|
|
|
// eXtended system descriptor pointer
|
|
// ACPI 2.0
|
|
struct xsdp {
|
|
char signature[8];
|
|
uint8_t checksum;
|
|
char oemid[6];
|
|
uint8_t revision;
|
|
uint32_t rsdt_addr;
|
|
uint32_t length;
|
|
uint64_t xsdt_addr;
|
|
uint8_t extendeid_checksum;
|
|
uint8_t reserved[3];
|
|
} __attribute__((packed));
|
|
|
|
// root system descriptor table
|
|
// ACPI 1.0
|
|
struct rsdt {
|
|
struct acpi_header h;
|
|
uint32_t sdt_pointers[];
|
|
} __attribute__((packed));
|
|
|
|
// eXtended system descriptor table
|
|
// ACPI 2.0
|
|
struct xsdt {
|
|
struct acpi_header h;
|
|
uint64_t sdt_pointers[];
|
|
} __attribute__((packed));
|
|
|
|
|
|
// generic address structure
|
|
struct gas {
|
|
uint8_t address_space;
|
|
uint8_t bit_width;
|
|
uint8_t bit_offset;
|
|
uint8_t access_size;
|
|
uint64_t address;
|
|
};
|
|
|
|
// differentiated system description table
|
|
struct dsdt {
|
|
struct acpi_header h;
|
|
char s5_addr[];
|
|
} __attribute__((packed));
|
|
|
|
struct apic {
|
|
struct acpi_header h;
|
|
// todo
|
|
} __attribute__((packed));
|
|
|
|
struct hept {
|
|
struct acpi_header h;
|
|
// todo
|
|
} __attribute__((packed));
|
|
|
|
struct waet {
|
|
struct acpi_header h;
|
|
// todo
|
|
} __attribute__((packed));
|
|
|
|
// fixed acpi description table
|
|
struct fadt {
|
|
struct acpi_header h;
|
|
uint32_t firmware_ctrl;
|
|
uint32_t dsdt;
|
|
|
|
// field used in ACPI 1.0; no longer in use, for compatibility only
|
|
uint8_t reserved;
|
|
|
|
uint8_t preferred_power_management_profile;
|
|
uint16_t sci_interrupt;
|
|
uint32_t smi_command_port;
|
|
uint8_t acpi_enable;
|
|
uint8_t acpi_disable;
|
|
uint8_t s4bios_req;
|
|
uint8_t pstate_control;
|
|
uint32_t pm1_a_event_block;
|
|
uint32_t pm1_b_event_block;
|
|
uint32_t pm1_a_control_block;
|
|
uint32_t pm1_b_control_block;
|
|
uint32_t pm2_control_block;
|
|
uint32_t pm_timer_block;
|
|
uint32_t gpe0_block;
|
|
uint32_t gpe1_block;
|
|
uint8_t pm1_event_length;
|
|
uint8_t pm1_control_length;
|
|
uint8_t pm2_control_length;
|
|
uint8_t pm_timer_length;
|
|
uint8_t gpe0_length;
|
|
uint8_t gpe1_length;
|
|
uint8_t gpe1_base;
|
|
uint8_t cstate_control;
|
|
uint16_t worst_c2_latency;
|
|
uint16_t worst_c3_latency;
|
|
uint16_t flush_size;
|
|
uint16_t flush_stride;
|
|
uint8_t duty_offset;
|
|
uint8_t duty_width;
|
|
uint8_t day_alarm;
|
|
uint8_t month_alarm;
|
|
uint8_t century;
|
|
|
|
// reserved in ACPI 1.0; used since ACPI 2.0+
|
|
uint16_t boot_architecture_flags;
|
|
|
|
uint8_t reserved_2;
|
|
uint32_t flags;
|
|
|
|
// 12 byte structure; see below for details
|
|
struct gas reset_reg;
|
|
|
|
uint8_t reset_value;
|
|
uint8_t reserved_3[3];
|
|
|
|
// 64bit pointers - Available on ACPI 2.0+
|
|
uint64_t x_firmware_control;
|
|
uint64_t x_dsdt;
|
|
|
|
struct gas x_pm1_a_event_block;
|
|
struct gas x_pm1_b_event_block;
|
|
struct gas x_pm1_a_control_block;
|
|
struct gas x_pm1_b_control_block;
|
|
struct gas x_pm2_control_block;
|
|
struct gas x_pm_timer_block;
|
|
struct gas x_gpe0_block;
|
|
struct gas x_gpe1_block;
|
|
} __attribute__((packed));
|
|
|
|
struct acpi_state {
|
|
union {
|
|
struct xsdt *xsdt;
|
|
struct rsdt *rsdt;
|
|
} sdt;
|
|
struct fadt *fadt;
|
|
struct dsdt *dsdt;
|
|
struct apic *apic;
|
|
struct hept *hept;
|
|
struct waet *waet;
|
|
uint8_t version;
|
|
|
|
uint16_t SLP_TYPa;
|
|
uint16_t SLP_TYPb;
|
|
uint16_t SLP_EN;
|
|
uint16_t SCI_EN;
|
|
};
|
|
|
|
void acpi_sys_enable(struct acpi_state *state);
|
|
int acpi_sys_shutdown(struct acpi_state *state);
|