From aa0929614aad04ef594d4fd42f78afc0e9a72757 Mon Sep 17 00:00:00 2001
From: Bananymous <bananymousosq@gmail.com>
Date: Fri, 4 Aug 2023 15:13:47 +0300
Subject: [PATCH] Kernel: Add more structures to ACPI

---
 kernel/include/kernel/ACPI.h | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/kernel/include/kernel/ACPI.h b/kernel/include/kernel/ACPI.h
index 36df6f5f0e..2af66f293a 100644
--- a/kernel/include/kernel/ACPI.h
+++ b/kernel/include/kernel/ACPI.h
@@ -9,6 +9,15 @@ namespace Kernel
 	class ACPI
 	{
 	public:
+		struct GAS
+		{
+			uint8_t address_space_id;
+			uint8_t register_bit_width;
+			uint8_t register_bit_offset;
+			uint8_t access_size;
+			uint64_t address;
+		} __attribute__((packed));
+
 		struct SDTHeader
 		{
 			uint8_t signature[4];
@@ -81,6 +90,20 @@ namespace Kernel
 			uint64_t hypervison_vendor_identity;
 		} __attribute__((packed));
 
+		struct HPET : public SDTHeader
+		{
+			uint8_t hardware_rev_id;
+			uint8_t comparator_count : 5;
+			uint8_t count_size_cap : 1;
+			uint8_t reserved : 1;
+			uint8_t legacy_replacement_irq_routing_cable : 1;
+			uint16_t pci_vendor_id;
+			GAS base_address;
+			uint8_t hpet_number;
+			uint16_t main_counter_minimum_clock_tick;
+			uint8_t page_protection_and_oem_attribute;
+		} __attribute__((packed));
+
 	public:
 		static BAN::ErrorOr<void> initialize();
 		static ACPI& get();