1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3 * intel-nhlt.h - Intel HDA Platform NHLT header
4 *
5 * Copyright (c) 2015-2019 Intel Corporation
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
15 struct 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
25 struct 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
36 enum 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
44 enum nhlt_device_type {
45 NHLT_DEVICE_BT = 0,
46 NHLT_DEVICE_DMIC = 1,
47 NHLT_DEVICE_I2S = 4,
48 NHLT_DEVICE_INVALID
49 };
50
51 struct nhlt_specific_cfg {
52 u32 size;
53 u8 caps[0];
54 } __packed;
55
56 struct nhlt_fmt_cfg {
57 struct wav_fmt_ext fmt_ext;
58 struct nhlt_specific_cfg config;
59 } __packed;
60
61 struct nhlt_fmt {
62 u8 fmt_count;
63 struct nhlt_fmt_cfg fmt_config[0];
64 } __packed;
65
66 struct 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
80 struct nhlt_acpi_table {
81 struct acpi_table_header header;
82 u8 endpoint_count;
83 struct nhlt_endpoint desc[0];
84 } __packed;
85
86 struct 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
99 struct nhlt_device_specific_config {
100 u8 virtual_slot;
101 u8 config_type;
102 } __packed;
103
104 struct nhlt_dmic_array_config {
105 struct nhlt_device_specific_config device_config;
106 u8 array_type;
107 } __packed;
108
109 struct nhlt_vendor_dmic_array_config {
110 struct nhlt_dmic_array_config dmic_config;
111 u8 nb_mics;
112 /* TODO add vendor mic config */
113 } __packed;
114
115 enum {
116 NHLT_MIC_ARRAY_2CH_SMALL = 0xa,
117 NHLT_MIC_ARRAY_2CH_BIG = 0xb,
118 NHLT_MIC_ARRAY_4CH_1ST_GEOM = 0xc,
119 NHLT_MIC_ARRAY_4CH_L_SHAPED = 0xd,
120 NHLT_MIC_ARRAY_4CH_2ND_GEOM = 0xe,
121 NHLT_MIC_ARRAY_VENDOR_DEFINED = 0xf,
122 };
123
124 struct nhlt_acpi_table *intel_nhlt_init(struct device *dev);
125
126 void intel_nhlt_free(struct nhlt_acpi_table *addr);
127
128 int intel_nhlt_get_dmic_geo(struct device *dev, struct nhlt_acpi_table *nhlt);
129
130 #else
131
132 struct nhlt_acpi_table;
133
intel_nhlt_init(struct device * dev)134 static inline struct nhlt_acpi_table *intel_nhlt_init(struct device *dev)
135 {
136 return NULL;
137 }
138
intel_nhlt_free(struct nhlt_acpi_table * addr)139 static inline void intel_nhlt_free(struct nhlt_acpi_table *addr)
140 {
141 }
142
intel_nhlt_get_dmic_geo(struct device * dev,struct nhlt_acpi_table * nhlt)143 static inline int intel_nhlt_get_dmic_geo(struct device *dev,
144 struct nhlt_acpi_table *nhlt)
145 {
146 return 0;
147 }
148 #endif
149
150 #endif
151