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pr: ACPI Power Shutdown Implemented (#14)

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* Flush PS/2 Devices on boot to avoid Locking dependent on the out buffer on real hardware / emulated PS2 over USB

Removed Slow and Unnessisarty flipping causing kconsole write slowdowns consequently speeding up the boot process

* sod wc

* ignoring dynamically created objects, added make run rule which will automatically detect the platform and then use the correct platform rule

* ACPI Power Shutdown
This commit is contained in:
Myles "Mellurboo" Wilson
2026-05-10 20:16:54 +01:00
committed by GitHub
parent 77744464e3
commit b85bb900e6
11 changed files with 516 additions and 98 deletions
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129
src/drivers/acpi_structures.h Normal file
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#ifndef ACPI_STRUCTURES_H
#define ACPI_STRUCTURES_H
#include <stdint.h>
struct acpi_sdt {
char signature[4];
uint32_t length;
uint8_t revision;
uint8_t checksum;
char oem_id[6];
char oem_table_id[8];
uint32_t oem_revision;
uint32_t creator_id;
uint32_t creator_revision;
} __attribute__((packed));
struct acpi_rsdp {
char signature[8];
uint8_t checksum;
char oem_id[6];
uint8_t revision;
uint32_t rsdt_address;
// acpi2
uint32_t length;
uint64_t xsdt_address;
uint8_t extended_checksum;
uint8_t reserved[3];
} __attribute__((packed));
struct acpi_xsdt {
struct acpi_sdt header;
uint64_t tables[];
} __attribute__((packed));
typedef struct
{
uint8_t address_space_id;
uint8_t register_bit_width;
uint8_t register_bit_offset;
uint8_t access_size;
uint64_t address;
} __attribute__((packed)) GenericAddressStructure;
typedef struct acpi_fadt
{
struct acpi_sdt header;
uint32_t firmware_ctrl;
uint32_t dsdt;
uint8_t __reserved;
uint8_t preferred_pm_profile;
uint16_t sci_int;
uint32_t smi_cmd;
uint8_t acpi_enable;
uint8_t acpi_disable;
uint8_t s4bios_req;
uint8_t pstate_cnt;
uint32_t pm1a_evt_blk;
uint32_t pm1b_evt_blk;
uint32_t pm1a_cnt_blk;
uint32_t pm1b_cnt_blk;
uint32_t pm2_cnt_blk;
uint32_t pm_tmr_blk;
uint32_t gpe0_blk;
uint32_t gpe1_blk;
uint8_t pm1_evt_len;
uint8_t pm1_cnt_len;
uint8_t pm2_cnt_len;
uint8_t pm_tmr_len;
uint8_t gpe0_blk_len;
uint8_t gpe1_blk_len;
uint8_t gpe1_base;
uint8_t cst_cnt;
uint16_t p_lvl2_lat;
uint16_t p_lvl3_lat;
uint16_t flush_size;
uint16_t flush_stride;
uint8_t duty_offset;
uint8_t duty_width;
uint8_t day_alrm;
uint8_t mon_alrm;
uint8_t century;
uint16_t iapc_boot_arch;
uint8_t __reserved2;
uint32_t flags;
GenericAddressStructure reset_reg;
uint8_t reset_value;
uint16_t arm_boot_arch;
uint8_t fadt_minor_version;
uint64_t x_firmware_ctrl;
uint64_t x_dsdt;
uint8_t x_pm1a_evt_blk[12];
uint8_t x_pm1b_evt_blk[12];
uint8_t x_pm1a_cnt_blk[12];
uint8_t x_pm1b_cnt_blk[12];
uint8_t x_pm2_cnt_blk[12];
uint8_t x_pm_tmr_blk[12];
uint8_t x_gpe0_blk[12];
uint8_t x_gpe1_blk[12];
uint8_t sleep_control_reg[12];
uint8_t sleep_status_reg[12];
uint64_t hypervison_vendor_identity;
} __attribute__((packed)) fadt_t;
struct acpi_madt {
struct acpi_sdt header;
uint32_t lapic_addr;
uint32_t flags;
uint8_t entries[];
} __attribute__((packed));
struct madt_iso {
uint8_t type;
uint8_t length;
uint8_t bus;
uint8_t source;
uint32_t gsi;
uint16_t flags;
} __attribute__((packed));
struct madt_entry_header {
uint8_t type;
uint8_t length;
} __attribute__((packed));
struct acpi_sdt *acpi_find_sdt(const char sig[4]);
#endif