1 /* SPDX-License-Identifier: GPL-2.0 */
2 /* Copyright (c) 2019 Fuzhou Rockchip Electronics Co., Ltd. */
3
4 #ifndef _RKISP_ISP_LUMA_H
5 #define _RKISP_ISP_LUMA_H
6
7 #include <linux/rkisp1-config.h>
8 #include <linux/interrupt.h>
9 #include <linux/kfifo.h>
10 #include "common.h"
11
12 #define RKISP_LUMA_READOUT_WORK_SIZE \
13 (9 * sizeof(struct rkisp_luma_readout_work))
14 #define RKISP_LUMA_YSTAT_ISR_NUM 4
15
16 struct rkisp_luma_vdev;
17
18 enum rkisp_luma_readout_cmd {
19 RKISP_ISP_READOUT_LUMA,
20 };
21
22 enum rkisp_luma_frm_mode {
23 RKISP_LUMA_ONEFRM,
24 RKISP_LUMA_TWOFRM,
25 RKISP_LUMA_THREEFRM,
26 };
27
28 struct rkisp_luma_readout_work {
29 enum rkisp_luma_readout_cmd readout;
30 unsigned long long timestamp;
31 unsigned int meas_type;
32 unsigned int frame_id;
33 struct rkisp_mipi_luma luma[ISP2X_MIPI_RAW_MAX];
34 };
35
36 /*
37 * struct rkisp_isp_luma_vdev - ISP Statistics device
38 *
39 * @irq_lock: buffer queue lock
40 * @stat: stats buffer list
41 * @readout_wq: workqueue for statistics information read
42 */
43 struct rkisp_luma_vdev {
44 struct rkisp_vdev_node vnode;
45 struct rkisp_device *dev;
46
47 spinlock_t irq_lock; /* tasklet queue lock */
48 struct list_head stat;
49 struct v4l2_format vdev_fmt;
50 bool streamon;
51
52 spinlock_t rd_lock; /* buffer queue lock */
53 struct kfifo rd_kfifo;
54 struct tasklet_struct rd_tasklet;
55
56 unsigned int ystat_isrcnt[ISP2X_MIPI_RAW_MAX];
57 bool ystat_rdflg[ISP2X_MIPI_RAW_MAX];
58 struct rkisp_luma_readout_work work;
59 };
60
61 #if IS_ENABLED(CONFIG_VIDEO_ROCKCHIP_ISP_VERSION_V20)
62 void rkisp_luma_isr(struct rkisp_luma_vdev *luma_vdev, u32 isp_stat);
63
64 int rkisp_register_luma_vdev(struct rkisp_luma_vdev *luma_vdev,
65 struct v4l2_device *v4l2_dev,
66 struct rkisp_device *dev);
67
68 void rkisp_unregister_luma_vdev(struct rkisp_luma_vdev *luma_vdev);
69 #else
rkisp_unregister_luma_vdev(struct rkisp_luma_vdev * luma_vdev)70 static inline void rkisp_unregister_luma_vdev(struct rkisp_luma_vdev *luma_vdev) {}
rkisp_register_luma_vdev(struct rkisp_luma_vdev * luma_vdev,struct v4l2_device * v4l2_dev,struct rkisp_device * dev)71 static inline int rkisp_register_luma_vdev(struct rkisp_luma_vdev *luma_vdev,
72 struct v4l2_device *v4l2_dev,
73 struct rkisp_device *dev)
74 {
75 return 0;
76 }
77 #endif
78
79 #endif /* _RKISP_ISP_LUMA_H */
80