acpi: table parsing

kernel-src/include/x86-64/arch/acpi.h

@@ -0,0 +1,43 @@
+#ifndef _ACPI_H
+#define _ACPI_H
+
+#include <stddef.h>
+#include <stdint.h>
+#include <stdbool.h>
+
+typedef struct {
+	char sig[8];
+	uint8_t checksum;
+	char oem[6];
+	uint8_t revision;
+	uint32_t rsdt;
+	uint32_t length;
+	uint64_t xsdt;
+	uint8_t xchecksum;
+	uint8_t reserved[3];
+} __attribute__((packed)) rsdp_t;
+
+typedef struct {
+	char sig[4];
+	uint32_t length;
+	uint8_t revision;
+	uint8_t cechksum;
+	char oemid[6];
+	char oemtableid[8];
+	uint32_t oemrevision;
+	uint32_t creatorrevision;
+} __attribute__((packed)) sdtheader_t;
+
+typedef struct {
+	sdtheader_t header;
+	uint64_t tables[];
+} __attribute__((packed)) xsdt_t;
+
+typedef struct {
+	sdtheader_t header;
+	uint32_t tables[];
+} __attribute__((packed)) rsdt_t;
+
+void acpi_init();
+
+#endif