1 /* SPDX-License-Identifier: GPL-2.0 */
2 /* Author: Dan Scally <djrscally@gmail.com> */
3 #ifndef __CIO2_BRIDGE_H
4 #define __CIO2_BRIDGE_H
5 
6 #include <linux/property.h>
7 #include <linux/types.h>
8 
9 #include "ipu3-cio2.h"
10 
11 #define CIO2_HID				"INT343E"
12 #define CIO2_MAX_LANES				4
13 #define MAX_NUM_LINK_FREQS			3
14 
15 #define CIO2_SENSOR_CONFIG(_HID, _NR, ...)	\
16 	(const struct cio2_sensor_config) {	\
17 		.hid = _HID,			\
18 		.nr_link_freqs = _NR,		\
19 		.link_freqs = { __VA_ARGS__ }	\
20 	}
21 
22 #define NODE_SENSOR(_HID, _PROPS)		\
23 	(const struct software_node) {		\
24 		.name = _HID,			\
25 		.properties = _PROPS,		\
26 	}
27 
28 #define NODE_PORT(_PORT, _SENSOR_NODE)		\
29 	(const struct software_node) {		\
30 		.name = _PORT,			\
31 		.parent = _SENSOR_NODE,		\
32 	}
33 
34 #define NODE_ENDPOINT(_EP, _PORT, _PROPS)	\
35 	(const struct software_node) {		\
36 		.name = _EP,			\
37 		.parent = _PORT,		\
38 		.properties = _PROPS,		\
39 	}
40 
41 enum cio2_sensor_swnodes {
42 	SWNODE_SENSOR_HID,
43 	SWNODE_SENSOR_PORT,
44 	SWNODE_SENSOR_ENDPOINT,
45 	SWNODE_CIO2_PORT,
46 	SWNODE_CIO2_ENDPOINT,
47 	SWNODE_COUNT
48 };
49 
50 /* Data representation as it is in ACPI SSDB buffer */
51 struct cio2_sensor_ssdb {
52 	u8 version;
53 	u8 sku;
54 	u8 guid_csi2[16];
55 	u8 devfunction;
56 	u8 bus;
57 	u32 dphylinkenfuses;
58 	u32 clockdiv;
59 	u8 link;
60 	u8 lanes;
61 	u32 csiparams[10];
62 	u32 maxlanespeed;
63 	u8 sensorcalibfileidx;
64 	u8 sensorcalibfileidxInMBZ[3];
65 	u8 romtype;
66 	u8 vcmtype;
67 	u8 platforminfo;
68 	u8 platformsubinfo;
69 	u8 flash;
70 	u8 privacyled;
71 	u8 degree;
72 	u8 mipilinkdefined;
73 	u32 mclkspeed;
74 	u8 controllogicid;
75 	u8 reserved1[3];
76 	u8 mclkport;
77 	u8 reserved2[13];
78 } __packed;
79 
80 struct cio2_property_names {
81 	char clock_frequency[16];
82 	char rotation[9];
83 	char bus_type[9];
84 	char data_lanes[11];
85 	char remote_endpoint[16];
86 	char link_frequencies[17];
87 };
88 
89 struct cio2_node_names {
90 	char port[7];
91 	char endpoint[11];
92 	char remote_port[7];
93 };
94 
95 struct cio2_sensor_config {
96 	const char *hid;
97 	const u8 nr_link_freqs;
98 	const u64 link_freqs[MAX_NUM_LINK_FREQS];
99 };
100 
101 struct cio2_sensor {
102 	char name[ACPI_ID_LEN];
103 	struct acpi_device *adev;
104 
105 	struct software_node swnodes[6];
106 	struct cio2_node_names node_names;
107 
108 	struct cio2_sensor_ssdb ssdb;
109 	struct cio2_property_names prop_names;
110 	struct property_entry ep_properties[5];
111 	struct property_entry dev_properties[3];
112 	struct property_entry cio2_properties[3];
113 	struct software_node_ref_args local_ref[1];
114 	struct software_node_ref_args remote_ref[1];
115 };
116 
117 struct cio2_bridge {
118 	char cio2_node_name[ACPI_ID_LEN];
119 	struct software_node cio2_hid_node;
120 	u32 data_lanes[4];
121 	unsigned int n_sensors;
122 	struct cio2_sensor sensors[CIO2_NUM_PORTS];
123 };
124 
125 #endif
126