1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3  * camss-csid.h
4  *
5  * Qualcomm MSM Camera Subsystem - CSID (CSI Decoder) Module
6  *
7  * Copyright (c) 2011-2014, The Linux Foundation. All rights reserved.
8  * Copyright (C) 2015-2018 Linaro Ltd.
9  */
10 #ifndef QC_MSM_CAMSS_CSID_H
11 #define QC_MSM_CAMSS_CSID_H
12 
13 #include <linux/clk.h>
14 #include <media/media-entity.h>
15 #include <media/v4l2-ctrls.h>
16 #include <media/v4l2-device.h>
17 #include <media/v4l2-mediabus.h>
18 #include <media/v4l2-subdev.h>
19 
20 #define MSM_CSID_PAD_SINK 0
21 #define MSM_CSID_PAD_SRC 1
22 #define MSM_CSID_PADS_NUM 2
23 
24 enum csid_payload_mode {
25 	CSID_PAYLOAD_MODE_INCREMENTING = 0,
26 	CSID_PAYLOAD_MODE_ALTERNATING_55_AA = 1,
27 	CSID_PAYLOAD_MODE_ALL_ZEROES = 2,
28 	CSID_PAYLOAD_MODE_ALL_ONES = 3,
29 	CSID_PAYLOAD_MODE_RANDOM = 4,
30 	CSID_PAYLOAD_MODE_USER_SPECIFIED = 5,
31 };
32 
33 struct csid_testgen_config {
34 	u8 enabled;
35 	enum csid_payload_mode payload_mode;
36 };
37 
38 struct csid_phy_config {
39 	u8 csiphy_id;
40 	u8 lane_cnt;
41 	u32 lane_assign;
42 };
43 
44 struct csid_device {
45 	struct camss *camss;
46 	u8 id;
47 	struct v4l2_subdev subdev;
48 	struct media_pad pads[MSM_CSID_PADS_NUM];
49 	void __iomem *base;
50 	u32 irq;
51 	char irq_name[30];
52 	struct camss_clock *clock;
53 	int nclocks;
54 	struct regulator *vdda;
55 	struct completion reset_complete;
56 	struct csid_testgen_config testgen;
57 	struct csid_phy_config phy;
58 	struct v4l2_mbus_framefmt fmt[MSM_CSID_PADS_NUM];
59 	struct v4l2_ctrl_handler ctrls;
60 	struct v4l2_ctrl *testgen_mode;
61 	const struct csid_format *formats;
62 	unsigned int nformats;
63 };
64 
65 struct resources;
66 
67 int msm_csid_subdev_init(struct camss *camss, struct csid_device *csid,
68 			 const struct resources *res, u8 id);
69 
70 int msm_csid_register_entity(struct csid_device *csid,
71 			     struct v4l2_device *v4l2_dev);
72 
73 void msm_csid_unregister_entity(struct csid_device *csid);
74 
75 void msm_csid_get_csid_id(struct media_entity *entity, u8 *id);
76 
77 #endif /* QC_MSM_CAMSS_CSID_H */
78