summaryrefslogtreecommitdiffstats
path: root/drivers/media/pci/intel/ipu3/cio2-bridge.h
blob: 4418cbd08208dc7abb7a3fea5a304d46c2ca3d3a (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
/* SPDX-License-Identifier: GPL-2.0 */
/* Author: Dan Scally <djrscally@gmail.com> */
#ifndef __CIO2_BRIDGE_H
#define __CIO2_BRIDGE_H

#include <linux/property.h>
#include <linux/types.h>

#include "ipu3-cio2.h"

struct i2c_client;

#define CIO2_HID				"INT343E"
#define CIO2_MAX_LANES				4
#define MAX_NUM_LINK_FREQS			3

/* Values are educated guesses as we don't have a spec */
#define CIO2_SENSOR_ROTATION_NORMAL		0
#define CIO2_SENSOR_ROTATION_INVERTED		1

#define CIO2_SENSOR_CONFIG(_HID, _NR, ...)	\
	(const struct cio2_sensor_config) {	\
		.hid = _HID,			\
		.nr_link_freqs = _NR,		\
		.link_freqs = { __VA_ARGS__ }	\
	}

#define NODE_SENSOR(_HID, _PROPS)		\
	(const struct software_node) {		\
		.name = _HID,			\
		.properties = _PROPS,		\
	}

#define NODE_PORT(_PORT, _SENSOR_NODE)		\
	(const struct software_node) {		\
		.name = _PORT,			\
		.parent = _SENSOR_NODE,		\
	}

#define NODE_ENDPOINT(_EP, _PORT, _PROPS)	\
	(const struct software_node) {		\
		.name = _EP,			\
		.parent = _PORT,		\
		.properties = _PROPS,		\
	}

#define NODE_VCM(_TYPE)				\
	(const struct software_node) {		\
		.name = _TYPE,			\
	}

enum cio2_sensor_swnodes {
	SWNODE_SENSOR_HID,
	SWNODE_SENSOR_PORT,
	SWNODE_SENSOR_ENDPOINT,
	SWNODE_CIO2_PORT,
	SWNODE_CIO2_ENDPOINT,
	/* Must be last because it is optional / maybe empty */
	SWNODE_VCM,
	SWNODE_COUNT
};

/* Data representation as it is in ACPI SSDB buffer */
struct cio2_sensor_ssdb {
	u8 version;
	u8 sku;
	u8 guid_csi2[16];
	u8 devfunction;
	u8 bus;
	u32 dphylinkenfuses;
	u32 clockdiv;
	u8 link;
	u8 lanes;
	u32 csiparams[10];
	u32 maxlanespeed;
	u8 sensorcalibfileidx;
	u8 sensorcalibfileidxInMBZ[3];
	u8 romtype;
	u8 vcmtype;
	u8 platforminfo;
	u8 platformsubinfo;
	u8 flash;
	u8 privacyled;
	u8 degree;
	u8 mipilinkdefined;
	u32 mclkspeed;
	u8 controllogicid;
	u8 reserved1[3];
	u8 mclkport;
	u8 reserved2[13];
} __packed;

struct cio2_property_names {
	char clock_frequency[16];
	char rotation[9];
	char orientation[12];
	char bus_type[9];
	char data_lanes[11];
	char remote_endpoint[16];
	char link_frequencies[17];
};

struct cio2_node_names {
	char port[7];
	char endpoint[11];
	char remote_port[7];
};

struct cio2_sensor_config {
	const char *hid;
	const u8 nr_link_freqs;
	const u64 link_freqs[MAX_NUM_LINK_FREQS];
};

struct cio2_sensor {
	char name[ACPI_ID_LEN];
	struct acpi_device *adev;
	struct i2c_client *vcm_i2c_client;

	/* SWNODE_COUNT + 1 for terminating empty node */
	struct software_node swnodes[SWNODE_COUNT + 1];
	struct cio2_node_names node_names;

	struct cio2_sensor_ssdb ssdb;
	struct acpi_pld_info *pld;

	struct cio2_property_names prop_names;
	struct property_entry ep_properties[5];
	struct property_entry dev_properties[5];
	struct property_entry cio2_properties[3];
	struct software_node_ref_args local_ref[1];
	struct software_node_ref_args remote_ref[1];
	struct software_node_ref_args vcm_ref[1];
};

struct cio2_bridge {
	char cio2_node_name[ACPI_ID_LEN];
	struct software_node cio2_hid_node;
	u32 data_lanes[4];
	unsigned int n_sensors;
	struct cio2_sensor sensors[CIO2_NUM_PORTS];
};

#endif