1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3  * camss-ispif.h
4  *
5  * Qualcomm MSM Camera Subsystem - ISPIF (ISP Interface) Module
6  *
7  * Copyright (c) 2013-2014, The Linux Foundation. All rights reserved.
8  * Copyright (C) 2015-2018 Linaro Ltd.
9  */
10 #ifndef QC_MSM_CAMSS_ISPIF_H
11 #define QC_MSM_CAMSS_ISPIF_H
12 
13 #include <linux/clk.h>
14 #include <media/media-entity.h>
15 #include <media/v4l2-device.h>
16 #include <media/v4l2-subdev.h>
17 
18 #define MSM_ISPIF_PAD_SINK 0
19 #define MSM_ISPIF_PAD_SRC 1
20 #define MSM_ISPIF_PADS_NUM 2
21 
22 #define MSM_ISPIF_VFE_NUM 2
23 
24 enum ispif_intf {
25 	PIX0,
26 	RDI0,
27 	PIX1,
28 	RDI1,
29 	RDI2
30 };
31 
32 struct ispif_intf_cmd_reg {
33 	u32 cmd_0;
34 	u32 cmd_1;
35 };
36 
37 struct ispif_line {
38 	struct ispif_device *ispif;
39 	u8 id;
40 	u8 csid_id;
41 	u8 vfe_id;
42 	enum ispif_intf interface;
43 	struct v4l2_subdev subdev;
44 	struct media_pad pads[MSM_ISPIF_PADS_NUM];
45 	struct v4l2_mbus_framefmt fmt[MSM_ISPIF_PADS_NUM];
46 	const u32 *formats;
47 	unsigned int nformats;
48 };
49 
50 struct ispif_device {
51 	void __iomem *base;
52 	void __iomem *base_clk_mux;
53 	u32 irq;
54 	char irq_name[30];
55 	struct camss_clock *clock;
56 	int nclocks;
57 	struct camss_clock  *clock_for_reset;
58 	int nclocks_for_reset;
59 	struct completion reset_complete[MSM_ISPIF_VFE_NUM];
60 	int power_count;
61 	struct mutex power_lock;
62 	struct ispif_intf_cmd_reg intf_cmd[MSM_ISPIF_VFE_NUM];
63 	struct mutex config_lock;
64 	unsigned int line_num;
65 	struct ispif_line *line;
66 	struct camss *camss;
67 };
68 
69 struct resources_ispif;
70 
71 int msm_ispif_subdev_init(struct camss *camss,
72 			  const struct resources_ispif *res);
73 
74 int msm_ispif_register_entities(struct ispif_device *ispif,
75 				struct v4l2_device *v4l2_dev);
76 
77 void msm_ispif_unregister_entities(struct ispif_device *ispif);
78 
79 #endif /* QC_MSM_CAMSS_ISPIF_H */
80