1 files changed, 32 insertions, 0 deletions
diff --git a/kernel/inc/dev.h b/kernel/inc/dev.h
new file mode 100644
index 0000000..fc5e424
--- /dev/null
+++ b/kernel/inc/dev.h
@@ -0,0 +1,32 @@
+// MIT License, Copyright (c) 2021 Marvin Borner
+
+#ifndef dev_H
+#define dev_H
+
+#include <def.h>
+#include <drivers/int.h>
+#include <proc.h>
+#include <sys.h>
+
+struct dev_dev {
+	res (*read)(void *buf, u32 offset, u32 count) NONNULL;
+	res (*write)(const void *buf, u32 offset, u32 count) NONNULL;
+	res (*control)(u32 request, void *arg1, void *arg2, void *arg3);
+	res (*ready)(void);
+};
+
+void dev_install(void);
+void dev_add(enum dev_type type, struct dev_dev *dev) NONNULL;
+
+// No NONNULL on syscalls
+res dev_control(enum dev_type type, u32 request, void *arg1, void *arg2, void *arg3);
+res dev_write(enum dev_type type, const void *buf, u32 offset, u32 count);
+res dev_read(enum dev_type type, void *buf, u32 offset, u32 count);
+res dev_poll(u32 *devs);
+res dev_ready(enum dev_type type);
+
+void dev_block(enum dev_type type, struct proc *proc) NONNULL;
+void dev_unblock(enum dev_type type);
+void dev_unblock_pid(u32 pid);
+
+#endif