145 lines
3.2 KiB
C++
145 lines
3.2 KiB
C++
#pragma once
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#include <BAN/Vector.h>
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#include <kernel/Memory/Types.h>
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namespace Kernel
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{
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class ACPI
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{
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public:
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struct GAS
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{
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uint8_t address_space_id;
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uint8_t register_bit_width;
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uint8_t register_bit_offset;
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uint8_t access_size;
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uint64_t address;
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} __attribute__((packed));
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struct SDTHeader
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{
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uint8_t signature[4];
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uint32_t length;
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uint8_t revision;
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uint8_t checksum;
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uint8_t oemid[6];
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uint64_t oem_table_id;
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uint32_t oem_revision;
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uint32_t creator_id;
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uint32_t creator_revision;
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} __attribute__((packed));
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struct FADT : public SDTHeader
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{
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uint32_t firmware_ctrl;
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uint32_t dsdt;
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uint8_t __reserved;
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uint8_t preferred_pm_profile;
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uint16_t sci_int;
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uint32_t smi_cmd;
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uint8_t acpi_enable;
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uint8_t acpi_disable;
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uint8_t s4bios_req;
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uint8_t pstate_cnt;
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uint32_t pm1a_evt_blk;
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uint32_t pm1b_evt_blk;
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uint32_t pm1a_cnt_blk;
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uint32_t pm1b_cnt_blk;
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uint32_t pm2_cnt_blk;
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uint32_t pm_tmr_blk;
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uint32_t gpe0_blk;
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uint32_t gpe1_blk;
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uint8_t pm1_evt_len;
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uint8_t pm1_cnt_len;
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uint8_t pm2_cnt_len;
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uint8_t pm_tmr_len;
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uint8_t gpe0_blk_len;
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uint8_t gpe1_blk_len;
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uint8_t gpe1_base;
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uint8_t cst_cnt;
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uint16_t p_lvl2_lat;
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uint16_t p_lvl3_lat;
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uint16_t flush_size;
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uint16_t flush_stride;
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uint8_t duty_offset;
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uint8_t duty_width;
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uint8_t day_alrm;
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uint8_t mon_alrm;
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uint8_t century;
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uint16_t iapc_boot_arch;
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uint8_t __reserved2;
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uint32_t flags;
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uint8_t reset_reg[12];
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uint8_t reset_value;
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uint16_t arm_boot_arch;
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uint8_t fadt_minor_version;
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uint64_t x_firmware_version;
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uint64_t x_dsdt;
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uint8_t x_pm1a_evt_blk[12];
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uint8_t x_pm1b_evt_blk[12];
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uint8_t x_pm1a_cnt_blk[12];
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uint8_t x_pm1b_cnt_blk[12];
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uint8_t x_pm2_cnt_blk[12];
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uint8_t x_pm_tmr_blk[12];
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uint8_t x_gpe0_blk[12];
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uint8_t x_gpe1_blk[12];
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uint8_t sleep_control_reg[12];
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uint8_t sleep_status_reg[12];
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uint64_t hypervison_vendor_identity;
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} __attribute__((packed));
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struct HPET : public SDTHeader
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{
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uint8_t hardware_rev_id;
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uint8_t comparator_count : 5;
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uint8_t count_size_cap : 1;
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uint8_t reserved : 1;
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uint8_t legacy_replacement_irq_routing_cable : 1;
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uint16_t pci_vendor_id;
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GAS base_address;
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uint8_t hpet_number;
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uint16_t main_counter_minimum_clock_tick;
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uint8_t page_protection_and_oem_attribute;
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} __attribute__((packed));
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public:
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static BAN::ErrorOr<void> initialize();
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static ACPI& get();
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const SDTHeader* get_header(BAN::StringView signature, uint32_t index);
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private:
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ACPI() = default;
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BAN::ErrorOr<void> initialize_impl();
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private:
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paddr_t m_header_table_paddr = 0;
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vaddr_t m_header_table_vaddr = 0;
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uint32_t m_entry_size = 0;
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struct MappedPage
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{
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Kernel::paddr_t paddr;
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Kernel::vaddr_t vaddr;
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SDTHeader* as_header() { return (SDTHeader*)vaddr; }
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};
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BAN::Vector<MappedPage> m_mapped_headers;
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};
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}
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namespace BAN::Formatter
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{
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template<typename F>
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void print_argument(F putc, const Kernel::ACPI::SDTHeader& header, const ValueFormat& format)
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{
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putc(header.signature[0]);
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putc(header.signature[1]);
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putc(header.signature[2]);
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putc(header.signature[3]);
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}
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}
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