Added events and map syscall

1 files changed, 32 insertions, 0 deletions

diff --git a/kernel/features/event.c b/kernel/features/event.c
new file mode 100644
index 0000000..e91dcab
--- /dev/null
+++ b/kernel/features/event.c
@@ -0,0 +1,32 @@
+// MIT License, Copyright (c) 2020 Marvin Borner
+
+#include <assert.h>
+#include <def.h>
+#include <sys.h>
+
+u32 (*event_table[])() = { [EVENT_KEYBOARD] = NULL, [EVENT_MOUSE] = NULL };
+
+u32 event_map(enum event id, u32 (*function)())
+{
+	printf("%x to %x\n", id, function);
+	if (id >= sizeof(event_table) / sizeof(*event_table))
+		return -1;
+
+	event_table[id] = function;
+	return 0;
+}
+
+u32 event_trigger(enum event id, u32 *data)
+{
+	assert(id < sizeof(event_table) / sizeof(*event_table));
+
+	u32 (*location)(u32 *) = event_table[id];
+	if (!location) {
+		printf("Event %d not mapped!\n", id);
+		return -1;
+	}
+
+	// TODO: Execute event function in ring3 with process stack, ...
+	location(data);
+	return 0;
+}