Integrate uACPI

kernel/hal/x86_64/uACPI/include/uacpi/opregion.h

@@ -0,0 +1,47 @@
+#pragma once
+
+#include <uacpi/types.h>
+#include <uacpi/status.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifndef UACPI_BAREBONES_MODE
+
+/*
+ * Install an address space handler to a device node.
+ * The handler is recursively connected to all of the operation regions of
+ * type 'space' underneath 'device_node'. Note that this recursion stops as
+ * soon as another device node that already has an address space handler of
+ * this type installed is encountered.
+ */
+uacpi_status uacpi_install_address_space_handler(
+    uacpi_namespace_node *device_node, enum uacpi_address_space space,
+    uacpi_region_handler handler, uacpi_handle handler_context
+);
+
+/*
+ * Uninstall the handler of type 'space' from a given device node.
+ */
+uacpi_status uacpi_uninstall_address_space_handler(
+    uacpi_namespace_node *device_node,
+    enum uacpi_address_space space
+);
+
+/*
+ * Execute _REG(space, ACPI_REG_CONNECT) for all of the opregions with this
+ * address space underneath this device. This should only be called manually
+ * if you want to register an early handler that must be available before the
+ * call to uacpi_namespace_initialize().
+ */
+uacpi_status uacpi_reg_all_opregions(
+    uacpi_namespace_node *device_node,
+    enum uacpi_address_space space
+);
+
+#endif // !UACPI_BAREBONES_MODE
+
+#ifdef __cplusplus
+}
+#endif