Vystem 0.2

shelter/lib/include/devs/acpi_tables/madt.h

@@ -0,0 +1,53 @@
+// SPDX-License-Identifier: MPL-2.0
+#ifndef SH_LIB_ACPI_MADT_H
+#define SH_LIB_ACPI_MADT_H
+#include "std/stdlib.h"
+// MADT header structure
+typedef struct {
+  char signature[4];
+  sh_uint32 length;
+  sh_uint8 revision;
+  sh_uint8 checksum;
+  char oem_id[6];
+  char oem_table_id[8];
+  sh_uint32 oem_revision;
+  sh_uint32 creator_id;
+  sh_uint32 creator_revision;
+} sh_acpi_madt_TABLE_HEADER;
+// MADT structure
+typedef struct {
+  sh_acpi_madt_TABLE_HEADER header;
+  sh_uint32 local_apic_address;
+  sh_uint32 flags;
+} sh_acpi_madt_MADT;
+// MADT entry header structure
+typedef struct {
+  sh_uint8 type;
+  sh_uint8 length;
+} sh_acpi_madt_ENTRY_HEADER;
+// Local APIC structure
+typedef struct {
+  sh_acpi_madt_ENTRY_HEADER header;
+  sh_uint8 acpi_processor_id;
+  sh_uint8 apic_id;
+  sh_uint32 flags;
+} sh_acpi_madt_LAPIC;
+// IO APIC structure
+typedef struct {
+  sh_acpi_madt_ENTRY_HEADER header;
+  sh_uint8 ioapic_id;
+  sh_uint8 reserved;
+  sh_uint32 ioapic_address;
+  sh_uint32 global_system_interrupt_base;
+} sh_acpi_madt_IOAPIC;
+// Interrupt source override structure
+typedef struct {
+  sh_acpi_madt_ENTRY_HEADER header;
+  sh_uint8 bus;
+  sh_uint8 source;
+  sh_uint32 gsi;
+  sh_uint16 flags;
+} sh_acpi_madt_ISO;
+// Parse MADT table
+SH_STATUS sh_acpi_madt_parse(sh_uint64 madt_ptr);
+#endif