first commit

1 files changed, 39 insertions, 0 deletions

diff --git a/src/kernel/include/acpi.h b/src/kernel/include/acpi.h
new file mode 100644
index 0000000..c15e044
--- /dev/null
+++ b/src/kernel/include/acpi.h
@@ -0,0 +1,39 @@
+#include <stdint.h>
+#include <libc.h>
+
+struct rsdp_v1 {
+  char sig[8];
+  uint8_t checksum;
+  char OEMID[6];
+  uint8_t version;
+  uint32_t rsdt_addr;
+
+} __attribute__((packed));
+
+struct rsdp_v2 {
+  struct rsdp_v1 v1;
+  uint32_t len;
+  uint64_t xsdt_addr;
+  uint8_t extended_checksum;
+  uint8_t reserved[3]; 
+} __attribute__((packed));
+
+
+typedef union rsdp_t { 
+  struct rsdp_v1 v1;
+  struct rsdp_v2 v2;
+} rsdp_t;
+
+struct acpi_header {
+  char sig[4];
+  uint32_t length;
+  uint8_t revision;
+  uint8_t checksum;
+  char OEMID[6];
+  char OEMTableID[8];
+  uint32_t OEMRevision;
+  uint32_t creator_id;
+  uint32_t creator_revision;
+} __attribute__((packed));
+
+rsdp_t *find_RSDP();