yeah

device/Kconfig

@@ -0,0 +1,15 @@
+menu "Device Drivers"
+
+config OF
+  bool "Support for OpenFirmware"
+  default y
+  help
+    Adds support for flattened device trees and OF platform drivers.
+
+config ACPI
+  bool "Support for ACPI firmware"
+  default y
+  help
+    Adds support for ACPI firmware, tables and devices.
+
+endmenu

device/acpi/meson.build

@@ -1,10 +1,15 @@
-# uACPI
 uacpi = subproject('uacpi')
-uacpi_sources = uacpi.get_variable('sources')
-uacpi_includes = uacpi.get_variable('includes')
+
+kernel_sources += uacpi.get_variable('sources')
+kernel_includes += uacpi.get_variable('includes')
 kernel_c_args += [
     '-DUACPI_FORMATTED_LOGGING',
-    '-DUACPI_BAREBONES_MODE',
+    '-DUACPI_BAREBONES_MODE', # TODO
     '-DUACPI_OVERRIDE_TYPES',
 ]
+# For uacpi_types.h
 kernel_includes += include_directories('include')
+
+kernel_sources += files(
+    'uacpi_glue.c',
+)

device/acpi/uacpi_glue.c

@@ -0,0 +1,34 @@
+#include <zinnia/init.h>
+#include <zinnia/mmio.h>
+#include <zinnia/print.h>
+#include <zinnia/utils.h>
+#include <stdarg.h>
+#include <uacpi/kernel_api.h>
+#include <uacpi/status.h>
+#include <uacpi/types.h>
+
+uacpi_status uacpi_kernel_get_rsdp(uacpi_phys_addr* out_rsdp_address) {
+    *out_rsdp_address = (uacpi_phys_addr)rsdp_addr;
+    return UACPI_STATUS_OK;
+}
+
+void* uacpi_kernel_map(uacpi_phys_addr addr, uacpi_size len) {
+    return (void*)mmio_new(addr, len).base;
+}
+
+void uacpi_kernel_unmap(void* addr, uacpi_size len) {
+    // TODO
+}
+
+void uacpi_kernel_log(uacpi_log_level lvl, const uacpi_char* msg, ...) {
+    va_list args;
+    va_start(args, msg);
+
+    kvprintf(msg, args);
+
+    va_end(args);
+}
+
+void uacpi_kernel_vlog(uacpi_log_level lvl, const uacpi_char* msg, uacpi_va_list args) {
+    kvprintf(msg, args);
+}

device/common/meson.build

@@ -0,0 +1,3 @@
+kernel_sources += files(
+    'memfiles.c',
+)

device/meson.build

@@ -1,3 +1,9 @@
-if get_option('acpi')
+subdir('common')
+
+if cfg.get('CONFIG_ACPI', 0) == 1
     subdir('acpi')
 endif
+
+if cfg.get('CONFIG_DT', 0) == 1
+    subdir('dt')
+endif