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1/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) */
2/*
3 * This file is provided under a dual BSD/GPLv2 license. When using or
4 * redistributing this file, you may do so under either license.
5 *
6 * Copyright(c) 2020 Intel Corporation
7 */
8
9/*
10 * Extended manifest is a place to store metadata about firmware, known during
11 * compilation time - for example firmware version or used compiler.
12 * Given information are read on host side before firmware startup.
13 * This part of output binary is not signed.
14 */
15
16#ifndef __SOF_FIRMWARE_EXT_MANIFEST_H__
17#define __SOF_FIRMWARE_EXT_MANIFEST_H__
18
19#include <linux/bits.h>
20#include <linux/compiler.h>
21#include <linux/types.h>
22#include <sound/sof/info.h>
23
24/* In ASCII `XMan` */
25#define SOF_EXT_MAN_MAGIC_NUMBER 0x6e614d58
26
27/* Build u32 number in format MMmmmppp */
28#define SOF_EXT_MAN_BUILD_VERSION(MAJOR, MINOR, PATH) ((uint32_t)( \
29 ((MAJOR) << 24) | \
30 ((MINOR) << 12) | \
31 (PATH)))
32
33/* check extended manifest version consistency */
34#define SOF_EXT_MAN_VERSION_INCOMPATIBLE(host_ver, cli_ver) ( \
35 ((host_ver) & GENMASK(31, 24)) != \
36 ((cli_ver) & GENMASK(31, 24)))
37
38/* used extended manifest header version */
39#define SOF_EXT_MAN_VERSION SOF_EXT_MAN_BUILD_VERSION(1, 0, 0)
40
41/* extended manifest header, deleting any field breaks backward compatibility */
42struct sof_ext_man_header {
43 uint32_t magic; /*< identification number, */
44 /*< EXT_MAN_MAGIC_NUMBER */
45 uint32_t full_size; /*< [bytes] full size of ext_man, */
46 /*< (header + content + padding) */
47 uint32_t header_size; /*< [bytes] makes header extensionable, */
48 /*< after append new field to ext_man header */
49 /*< then backward compatible won't be lost */
50 uint32_t header_version; /*< value of EXT_MAN_VERSION */
51 /*< not related with following content */
52
53 /* just after this header should be list of ext_man_elem_* elements */
54} __packed;
55
56/* Now define extended manifest elements */
57
58/* Extended manifest elements types */
59enum sof_ext_man_elem_type {
60 SOF_EXT_MAN_ELEM_FW_VERSION = 0,
61 SOF_EXT_MAN_ELEM_WINDOW = 1,
62 SOF_EXT_MAN_ELEM_CC_VERSION = 2,
63 SOF_EXT_MAN_ELEM_PROBE_INFO = 3,
64 SOF_EXT_MAN_ELEM_DBG_ABI = 4,
65 SOF_EXT_MAN_ELEM_CONFIG_DATA = 5, /**< ABI3.17 */
66 SOF_EXT_MAN_ELEM_PLATFORM_CONFIG_DATA = 6,
67};
68
69/* extended manifest element header */
70struct sof_ext_man_elem_header {
71 uint32_t type; /*< SOF_EXT_MAN_ELEM_ */
72 uint32_t size; /*< in bytes, including header size */
73
74 /* just after this header should be type dependent content */
75} __packed;
76
77/* FW version */
78struct sof_ext_man_fw_version {
79 struct sof_ext_man_elem_header hdr;
80 /* use sof_ipc struct because of code re-use */
81 struct sof_ipc_fw_version version;
82 uint32_t flags;
83} __packed;
84
85/* extended data memory windows for IPC, trace and debug */
86struct sof_ext_man_window {
87 struct sof_ext_man_elem_header hdr;
88 /* use sof_ipc struct because of code re-use */
89 struct sof_ipc_window ipc_window;
90} __packed;
91
92/* Used C compiler description */
93struct sof_ext_man_cc_version {
94 struct sof_ext_man_elem_header hdr;
95 /* use sof_ipc struct because of code re-use */
96 struct sof_ipc_cc_version cc_version;
97} __packed;
98
99struct ext_man_dbg_abi {
100 struct sof_ext_man_elem_header hdr;
101 /* use sof_ipc struct because of code re-use */
102 struct sof_ipc_user_abi_version dbg_abi;
103} __packed;
104
105/* EXT_MAN_ELEM_CONFIG_DATA elements identificators, ABI3.17 */
106enum config_elem_type {
107 SOF_EXT_MAN_CONFIG_EMPTY = 0,
108 SOF_EXT_MAN_CONFIG_IPC_MSG_SIZE = 1,
109 SOF_EXT_MAN_CONFIG_MEMORY_USAGE_SCAN = 2, /**< ABI 3.18 */
110};
111
112struct sof_config_elem {
113 uint32_t token;
114 uint32_t value;
115} __packed;
116
117/* firmware configuration information */
118struct sof_ext_man_config_data {
119 struct sof_ext_man_elem_header hdr;
120
121 struct sof_config_elem elems[];
122} __packed;
123
124#endif /* __SOF_FIRMWARE_EXT_MANIFEST_H__ */
125

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source code of linux/include/sound/sof/ext_manifest.h