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
|
/*
* Thunderbolt service API
*
* Copyright (C) 2014 Andreas Noever <andreas.noever@gmail.com>
* Copyright (C) 2017, Intel Corporation
* Authors: Michael Jamet <michael.jamet@intel.com>
* Mika Westerberg <mika.westerberg@linux.intel.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef THUNDERBOLT_H_
#define THUNDERBOLT_H_
#include <linux/list.h>
#include <linux/uuid.h>
enum tb_cfg_pkg_type {
TB_CFG_PKG_READ = 1,
TB_CFG_PKG_WRITE = 2,
TB_CFG_PKG_ERROR = 3,
TB_CFG_PKG_NOTIFY_ACK = 4,
TB_CFG_PKG_EVENT = 5,
TB_CFG_PKG_XDOMAIN_REQ = 6,
TB_CFG_PKG_XDOMAIN_RESP = 7,
TB_CFG_PKG_OVERRIDE = 8,
TB_CFG_PKG_RESET = 9,
TB_CFG_PKG_ICM_EVENT = 10,
TB_CFG_PKG_ICM_CMD = 11,
TB_CFG_PKG_ICM_RESP = 12,
TB_CFG_PKG_PREPARE_TO_SLEEP = 13,
};
/**
* struct tb_property_dir - XDomain property directory
* @uuid: Directory UUID or %NULL if root directory
* @properties: List of properties in this directory
*
* User needs to provide serialization if needed.
*/
struct tb_property_dir {
const uuid_t *uuid;
struct list_head properties;
};
enum tb_property_type {
TB_PROPERTY_TYPE_UNKNOWN = 0x00,
TB_PROPERTY_TYPE_DIRECTORY = 0x44,
TB_PROPERTY_TYPE_DATA = 0x64,
TB_PROPERTY_TYPE_TEXT = 0x74,
TB_PROPERTY_TYPE_VALUE = 0x76,
};
#define TB_PROPERTY_KEY_SIZE 8
/**
* struct tb_property - XDomain property
* @list: Used to link properties together in a directory
* @key: Key for the property (always terminated).
* @type: Type of the property
* @length: Length of the property data in dwords
* @value: Property value
*
* Users use @type to determine which field in @value is filled.
*/
struct tb_property {
struct list_head list;
char key[TB_PROPERTY_KEY_SIZE + 1];
enum tb_property_type type;
size_t length;
union {
struct tb_property_dir *dir;
u8 *data;
char *text;
u32 immediate;
} value;
};
struct tb_property_dir *tb_property_parse_dir(const u32 *block,
size_t block_len);
ssize_t tb_property_format_dir(const struct tb_property_dir *dir, u32 *block,
size_t block_len);
struct tb_property_dir *tb_property_create_dir(const uuid_t *uuid);
void tb_property_free_dir(struct tb_property_dir *dir);
int tb_property_add_immediate(struct tb_property_dir *parent, const char *key,
u32 value);
int tb_property_add_data(struct tb_property_dir *parent, const char *key,
const void *buf, size_t buflen);
int tb_property_add_text(struct tb_property_dir *parent, const char *key,
const char *text);
int tb_property_add_dir(struct tb_property_dir *parent, const char *key,
struct tb_property_dir *dir);
void tb_property_remove(struct tb_property *tb_property);
struct tb_property *tb_property_find(struct tb_property_dir *dir,
const char *key, enum tb_property_type type);
struct tb_property *tb_property_get_next(struct tb_property_dir *dir,
struct tb_property *prev);
#define tb_property_for_each(dir, property) \
for (property = tb_property_get_next(dir, NULL); \
property; \
property = tb_property_get_next(dir, property))
#endif /* THUNDERBOLT_H_ */
|
