1
2
3
4
5
6
7
8#ifndef __INTEL_NHLT_H__
9#define __INTEL_NHLT_H__
10
11#include <linux/acpi.h>
12
13#if IS_ENABLED(CONFIG_ACPI) && IS_ENABLED(CONFIG_SND_INTEL_NHLT)
14
15struct wav_fmt {
16 u16 fmt_tag;
17 u16 channels;
18 u32 samples_per_sec;
19 u32 avg_bytes_per_sec;
20 u16 block_align;
21 u16 bits_per_sample;
22 u16 cb_size;
23} __packed;
24
25struct wav_fmt_ext {
26 struct wav_fmt fmt;
27 union samples {
28 u16 valid_bits_per_sample;
29 u16 samples_per_block;
30 u16 reserved;
31 } sample;
32 u32 channel_mask;
33 u8 sub_fmt[16];
34} __packed;
35
36enum nhlt_link_type {
37 NHLT_LINK_HDA = 0,
38 NHLT_LINK_DSP = 1,
39 NHLT_LINK_DMIC = 2,
40 NHLT_LINK_SSP = 3,
41 NHLT_LINK_INVALID
42};
43
44enum nhlt_device_type {
45 NHLT_DEVICE_BT = 0,
46 NHLT_DEVICE_DMIC = 1,
47 NHLT_DEVICE_I2S = 4,
48 NHLT_DEVICE_INVALID
49};
50
51struct nhlt_specific_cfg {
52 u32 size;
53 u8 caps[];
54} __packed;
55
56struct nhlt_fmt_cfg {
57 struct wav_fmt_ext fmt_ext;
58 struct nhlt_specific_cfg config;
59} __packed;
60
61struct nhlt_fmt {
62 u8 fmt_count;
63 struct nhlt_fmt_cfg fmt_config[];
64} __packed;
65
66struct nhlt_endpoint {
67 u32 length;
68 u8 linktype;
69 u8 instance_id;
70 u16 vendor_id;
71 u16 device_id;
72 u16 revision_id;
73 u32 subsystem_id;
74 u8 device_type;
75 u8 direction;
76 u8 virtual_bus_id;
77 struct nhlt_specific_cfg config;
78} __packed;
79
80struct nhlt_acpi_table {
81 struct acpi_table_header header;
82 u8 endpoint_count;
83 struct nhlt_endpoint desc[];
84} __packed;
85
86struct nhlt_resource_desc {
87 u32 extra;
88 u16 flags;
89 u64 addr_spc_gra;
90 u64 min_addr;
91 u64 max_addr;
92 u64 addr_trans_offset;
93 u64 length;
94} __packed;
95
96#define MIC_ARRAY_2CH 2
97#define MIC_ARRAY_4CH 4
98
99struct nhlt_device_specific_config {
100 u8 virtual_slot;
101 u8 config_type;
102} __packed;
103
104struct nhlt_dmic_array_config {
105 struct nhlt_device_specific_config device_config;
106 u8 array_type;
107} __packed;
108
109struct nhlt_vendor_dmic_array_config {
110 struct nhlt_dmic_array_config dmic_config;
111 u8 nb_mics;
112
113} __packed;
114
115enum {
116 NHLT_CONFIG_TYPE_GENERIC = 0,
117 NHLT_CONFIG_TYPE_MIC_ARRAY = 1
118};
119
120enum {
121 NHLT_MIC_ARRAY_2CH_SMALL = 0xa,
122 NHLT_MIC_ARRAY_2CH_BIG = 0xb,
123 NHLT_MIC_ARRAY_4CH_1ST_GEOM = 0xc,
124 NHLT_MIC_ARRAY_4CH_L_SHAPED = 0xd,
125 NHLT_MIC_ARRAY_4CH_2ND_GEOM = 0xe,
126 NHLT_MIC_ARRAY_VENDOR_DEFINED = 0xf,
127};
128
129struct nhlt_acpi_table *intel_nhlt_init(struct device *dev);
130
131void intel_nhlt_free(struct nhlt_acpi_table *addr);
132
133int intel_nhlt_get_dmic_geo(struct device *dev, struct nhlt_acpi_table *nhlt);
134
135#else
136
137struct nhlt_acpi_table;
138
139static inline struct nhlt_acpi_table *intel_nhlt_init(struct device *dev)
140{
141 return NULL;
142}
143
144static inline void intel_nhlt_free(struct nhlt_acpi_table *addr)
145{
146}
147
148static inline int intel_nhlt_get_dmic_geo(struct device *dev,
149 struct nhlt_acpi_table *nhlt)
150{
151 return 0;
152}
153#endif
154
155#endif
156
