From 5ce5c28e0f0f034cb7c704f08e59089ef303ff7e Mon Sep 17 00:00:00 2001
From: Felix Morgner <felix.morgner@ost.ch>
Date: Sat, 1 Aug 2026 00:33:56 +0200
Subject: kapi: add automatic driver registration

---
 arch/x86_64/kapi/devices.cpp | 26 ++++++++++++++++++++++++--
 1 file changed, 24 insertions(+), 2 deletions(-)

(limited to 'arch/x86_64/kapi/devices.cpp')

diff --git a/arch/x86_64/kapi/devices.cpp b/arch/x86_64/kapi/devices.cpp
index d9a0b2b9..888b6e20 100644
--- a/arch/x86_64/kapi/devices.cpp
+++ b/arch/x86_64/kapi/devices.cpp
@@ -2,11 +2,15 @@
 
 #include <arch/bus/cpu.hpp>
 #include <arch/devices/init.hpp>
-#include <arch/drivers/init.hpp>
 
+#include <kapi/devices/driver_registry.hpp>
 #include <kapi/system.hpp>
 
 #include <kstd/memory.hpp>
+#include <kstd/print.hpp>
+
+#include <ranges>
+#include <span>
 
 namespace kapi::devices
 {
@@ -16,9 +20,27 @@ namespace kapi::devices
     auto static constinit cpu_bus = kstd::shared_ptr<arch::bus::cpu>{};
   }
 
+  extern "C"
+  {
+    // We need to suppress clang-tidy linting warnings here, since these symbols are generated by the linker and we
+    // cannot choose their names, unless we wanted to extend the linker script needlessly.
+    // NOLINTBEGIN(readability-identifier-naming)
+    extern kstd::observer_ptr<kapi::devices::driver_descriptor> const __start_platform_drivers;
+    extern kstd::observer_ptr<kapi::devices::driver_descriptor> const __stop_platform_drivers;
+    // NOLINTEND(readability-identifier-naming)
+  }
+
   auto init_platform_drivers() -> void
   {
-    arch::drivers::init_legacy_drivers();
+    auto descriptors = std::span{&__start_platform_drivers, &__stop_platform_drivers} |  //
+                       std::views::filter([](auto p) { return p != nullptr; });
+
+    for (auto driver : descriptors)
+    {
+      auto instance = driver->make_instance();
+      kstd::println("[x86_64:DRV] registering driver '{}' ({})", instance->name(), driver->name());
+      kapi::devices::driver_registry::get().add(driver->make_instance());
+    }
   }
 
   auto init_platform_devices() -> void
-- 
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