start working on irqs

1 files changed, 28 insertions, 0 deletions

diff --git a/common/uapi/irq.c b/common/uapi/irq.c
new file mode 100644
index 0000000..3aa040e
--- /dev/null
+++ b/common/uapi/irq.c
@@ -0,0 +1,28 @@
+/* SPDX-License-Identifier: copyleft-next-0.3.1 */
+
+/**
+ * @file irq.c
+ * IRQ request syscall handling implementation.
+ */
+
+#include <kmi/uapi.h>
+#include <kmi/irq.h>
+
+/**
+ * Actual IRQ handling request syscall handler.
+ *
+ * @param t Current tcb.
+ * @param id IRQ id to request to handle.
+ *
+ * @return OK on success, non-zero otherwise.
+ */
+SYSCALL_DEFINE1(irq_req)(struct tcb *t, sys_arg_t id)
+{
+	if (!has_cap(t->caps, CAP_IRQ))
+		return_args1(t, ERR_PERM);
+
+	if (!t->callback)
+		return_args1(t, ERR_NF);
+
+	return_args1(t, register_irq(t, id));
+}