From a35b6b09b90da7180e3c1321abb313d581f9530c Mon Sep 17 00:00:00 2001
From: Marvin Borner
Date: Sun, 6 Sep 2020 14:07:21 +0200
Subject: Added some ACPI tables

---
 kernel/inc/acpi.h | 40 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 40 insertions(+)

(limited to 'kernel/inc')

diff --git a/kernel/inc/acpi.h b/kernel/inc/acpi.h
index f620d55..2b4c76e 100644
--- a/kernel/inc/acpi.h
+++ b/kernel/inc/acpi.h
@@ -7,6 +7,17 @@
 
 #define RSDP_MAGIC "RSD PTR "
 #define RSDT_MAGIC "RSDT"
+#define MADT_MAGIC "APIC"
+#define FADT_MAGIC "FACP"
+#define HPET_MAGIC "HPET"
+
+struct address_structure {
+	u8 address_space_id;
+	u8 register_bit_width;
+	u8 register_bit_offset;
+	u8 reserved;
+	u64 address;
+};
 
 struct sdt_header {
 	char signature[4];
@@ -32,11 +43,40 @@ struct rsdt {
 	u32 sdt_pointer[];
 };
 
+struct madt {
+	struct sdt_header header;
+	u32 local_address;
+	u32 flags;
+};
+
+struct fadt {
+	struct sdt_header header;
+	// TODO: FADT table (big!)
+};
+
+struct hpet {
+	struct sdt_header header;
+	u8 hardware_rev_id;
+	u8 comparator_count : 5;
+	u8 counter_size : 1;
+	u8 reserved : 1;
+	u8 legacy_replacement : 1;
+	u16 pci_vendor_id;
+	struct address_structure address;
+	u8 hpet_number;
+	u16 minimum_tick;
+	u8 page_protection;
+};
+
 struct rsdp {
 	struct sdp_header header;
 	struct rsdt *rsdt;
 };
 
+struct madt *madt;
+struct fadt *fadt;
+struct hpet *hpet;
+
 void acpi_install();
 
 #endif
-- 
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