1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * Copyright (C) 2021-2022 Digiteq Automotive 4 * author: Martin Tuma <martin.tuma@digiteqautomotive.com> 5 */ 6 7 #ifndef __MGB4_IO_H__ 8 #define __MGB4_IO_H__ 9 10 #include <media/v4l2-dev.h> 11 12 #define MGB4_DEFAULT_WIDTH 1280 13 #define MGB4_DEFAULT_HEIGHT 640 14 #define MGB4_DEFAULT_PERIOD (125000000 / 60) 15 16 /* Register access error indication */ 17 #define MGB4_ERR_NO_REG 0xFFFFFFFE 18 /* Frame buffer addresses greater than 0xFFFFFFFA indicate HW errors */ 19 #define MGB4_ERR_QUEUE_TIMEOUT 0xFFFFFFFD 20 #define MGB4_ERR_QUEUE_EMPTY 0xFFFFFFFC 21 #define MGB4_ERR_QUEUE_FULL 0xFFFFFFFB 22 23 struct mgb4_frame_buffer { 24 struct vb2_v4l2_buffer vb; 25 struct list_head list; 26 }; 27 28 static inline struct mgb4_frame_buffer *to_frame_buffer(struct vb2_v4l2_buffer *vbuf) 29 { 30 return container_of(vbuf, struct mgb4_frame_buffer, vb); 31 } 32 33 #endif 34