1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * camss-csiphy.h
4 *
5 * Qualcomm MSM Camera Subsystem - CSIPHY Module
6 *
7 * Copyright (c) 2011-2015, The Linux Foundation. All rights reserved.
8 * Copyright (C) 2016-2018 Linaro Ltd.
9 */
10#ifndef QC_MSM_CAMSS_CSIPHY_H
11#define QC_MSM_CAMSS_CSIPHY_H
12
13#include <linux/clk.h>
14#include <linux/interrupt.h>
15#include <media/media-entity.h>
16#include <media/v4l2-device.h>
17#include <media/v4l2-mediabus.h>
18#include <media/v4l2-subdev.h>
19
20#define MSM_CSIPHY_PAD_SINK 0
21#define MSM_CSIPHY_PAD_SRC 1
22#define MSM_CSIPHY_PADS_NUM 2
23
24struct csiphy_lane {
25	u8 pos;
26	u8 pol;
27};
28
29struct csiphy_lanes_cfg {
30	int num_data;
31	struct csiphy_lane *data;
32	struct csiphy_lane clk;
33};
34
35struct csiphy_csi2_cfg {
36	struct csiphy_lanes_cfg lane_cfg;
37};
38
39struct csiphy_config {
40	u8 combo_mode;
41	u8 csid_id;
42	struct csiphy_csi2_cfg *csi2;
43};
44
45struct csiphy_device;
46
47struct csiphy_hw_ops {
48	/*
49	 * csiphy_get_lane_mask - Calculate CSI2 lane mask configuration parameter
50	 * @lane_cfg - CSI2 lane configuration
51	 *
52	 * Return lane mask
53	 */
54	u8 (*get_lane_mask)(struct csiphy_lanes_cfg *lane_cfg);
55	void (*hw_version_read)(struct csiphy_device *csiphy,
56				struct device *dev);
57	void (*reset)(struct csiphy_device *csiphy);
58	void (*lanes_enable)(struct csiphy_device *csiphy,
59			     struct csiphy_config *cfg,
60			     s64 link_freq, u8 lane_mask);
61	void (*lanes_disable)(struct csiphy_device *csiphy,
62			      struct csiphy_config *cfg);
63	irqreturn_t (*isr)(int irq, void *dev);
64};
65
66struct csiphy_device {
67	struct camss *camss;
68	u8 id;
69	struct v4l2_subdev subdev;
70	struct media_pad pads[MSM_CSIPHY_PADS_NUM];
71	void __iomem *base;
72	void __iomem *base_clk_mux;
73	u32 irq;
74	char irq_name[30];
75	struct camss_clock *clock;
76	bool *rate_set;
77	int nclocks;
78	u32 timer_clk_rate;
79	struct csiphy_config cfg;
80	struct v4l2_mbus_framefmt fmt[MSM_CSIPHY_PADS_NUM];
81	const struct csiphy_hw_ops *ops;
82	const struct csiphy_format *formats;
83	unsigned int nformats;
84};
85
86struct camss_subdev_resources;
87
88int msm_csiphy_subdev_init(struct camss *camss,
89			   struct csiphy_device *csiphy,
90			   const struct camss_subdev_resources *res, u8 id);
91
92int msm_csiphy_register_entity(struct csiphy_device *csiphy,
93			       struct v4l2_device *v4l2_dev);
94
95void msm_csiphy_unregister_entity(struct csiphy_device *csiphy);
96
97extern const struct csiphy_hw_ops csiphy_ops_2ph_1_0;
98extern const struct csiphy_hw_ops csiphy_ops_3ph_1_0;
99
100#endif /* QC_MSM_CAMSS_CSIPHY_H */
101