1 files changed, 33 insertions, 0 deletions
diff --git a/drivers/media/pci/mgb4/mgb4_io.h b/drivers/media/pci/mgb4/mgb4_io.h
new file mode 100644
index 000000000..8698db1be
--- /dev/null
+++ b/drivers/media/pci/mgb4/mgb4_io.h
@@ -0,0 +1,33 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2021-2022 Digiteq Automotive
+ *     author: Martin Tuma <martin.tuma@digiteqautomotive.com>
+ */
+
+#ifndef __MGB4_IO_H__
+#define __MGB4_IO_H__
+
+#include <media/v4l2-dev.h>
+
+#define MGB4_DEFAULT_WIDTH     1280
+#define MGB4_DEFAULT_HEIGHT    640
+#define MGB4_DEFAULT_PERIOD    (125000000 / 60)
+
+/* Register access error indication */
+#define MGB4_ERR_NO_REG        0xFFFFFFFE
+/* Frame buffer addresses greater than 0xFFFFFFFA indicate HW errors */
+#define MGB4_ERR_QUEUE_TIMEOUT 0xFFFFFFFD
+#define MGB4_ERR_QUEUE_EMPTY   0xFFFFFFFC
+#define MGB4_ERR_QUEUE_FULL    0xFFFFFFFB
+
+struct mgb4_frame_buffer {
+	struct vb2_v4l2_buffer vb;
+	struct list_head list;
+};
+
+static inline struct mgb4_frame_buffer *to_frame_buffer(struct vb2_v4l2_buffer *vbuf)
+{
+	return container_of(vbuf, struct mgb4_frame_buffer, vb);
+}
+
+#endif