include/sound/intel-nhlt.h

   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 enum nhlt_link_type {
  14         NHLT_LINK_HDA = 0,
  15         NHLT_LINK_DSP = 1,
  16         NHLT_LINK_DMIC = 2,
  17         NHLT_LINK_SSP = 3,
  18         NHLT_LINK_INVALID
  19 };
  20
  21 enum nhlt_device_type {
  22         NHLT_DEVICE_BT = 0,
  23         NHLT_DEVICE_DMIC = 1,
  24         NHLT_DEVICE_I2S = 4,
  25         NHLT_DEVICE_INVALID
  26 };
  27
  28 struct wav_fmt {
  29         u16 fmt_tag;
  30         u16 channels;
  31         u32 samples_per_sec;
  32         u32 avg_bytes_per_sec;
  33         u16 block_align;
  34         u16 bits_per_sample;
  35         u16 cb_size;
  36 } __packed;
  37
  38 struct wav_fmt_ext {
  39         struct wav_fmt fmt;
  40         union samples {
  41                 u16 valid_bits_per_sample;
  42                 u16 samples_per_block;
  43                 u16 reserved;
  44         } sample;
  45         u32 channel_mask;
  46         u8 sub_fmt[16];
  47 } __packed;
  48
  49 struct nhlt_specific_cfg {
  50         u32 size;
  51         u8 caps[];
  52 } __packed;
  53
  54 struct nhlt_fmt_cfg {
  55         struct wav_fmt_ext fmt_ext;
  56         struct nhlt_specific_cfg config;
  57 } __packed;
  58
  59 struct nhlt_fmt {
  60         u8 fmt_count;
  61         struct nhlt_fmt_cfg fmt_config[];
  62 } __packed;
  63
  64 struct nhlt_endpoint {
  65         u32  length;
  66         u8   linktype;
  67         u8   instance_id;
  68         u16  vendor_id;
  69         u16  device_id;
  70         u16  revision_id;
  71         u32  subsystem_id;
  72         u8   device_type;
  73         u8   direction;
  74         u8   virtual_bus_id;
  75         struct nhlt_specific_cfg config;
  76 } __packed;
  77
  78 struct nhlt_acpi_table {
  79         struct acpi_table_header header;
  80         u8 endpoint_count;
  81         struct nhlt_endpoint desc[];
  82 } __packed;
  83
  84 struct nhlt_resource_desc  {
  85         u32 extra;
  86         u16 flags;
  87         u64 addr_spc_gra;
  88         u64 min_addr;
  89         u64 max_addr;
  90         u64 addr_trans_offset;
  91         u64 length;
  92 } __packed;
  93
  94 #define MIC_ARRAY_2CH 2
  95 #define MIC_ARRAY_4CH 4
  96
  97 struct nhlt_device_specific_config {
  98         u8 virtual_slot;
  99         u8 config_type;
 100 } __packed;
 101
 102 struct nhlt_dmic_array_config {
 103         struct nhlt_device_specific_config device_config;
 104         u8 array_type;
 105 } __packed;
 106
 107 struct nhlt_vendor_dmic_array_config {
 108         struct nhlt_dmic_array_config dmic_config;
 109         u8 nb_mics;
 110         /* TODO add vendor mic config */
 111 } __packed;
 112
 113 enum {
 114         NHLT_CONFIG_TYPE_GENERIC = 0,
 115         NHLT_CONFIG_TYPE_MIC_ARRAY = 1
 116 };
 117
 118 enum {
 119         NHLT_MIC_ARRAY_2CH_SMALL = 0xa,
 120         NHLT_MIC_ARRAY_2CH_BIG = 0xb,
 121         NHLT_MIC_ARRAY_4CH_1ST_GEOM = 0xc,
 122         NHLT_MIC_ARRAY_4CH_L_SHAPED = 0xd,
 123         NHLT_MIC_ARRAY_4CH_2ND_GEOM = 0xe,
 124         NHLT_MIC_ARRAY_VENDOR_DEFINED = 0xf,
 125 };
 126
 127 #if IS_ENABLED(CONFIG_ACPI) && IS_ENABLED(CONFIG_SND_INTEL_NHLT)
 128
 129 struct nhlt_acpi_table *intel_nhlt_init(struct device *dev);
 130
 131 void intel_nhlt_free(struct nhlt_acpi_table *addr);
 132
 133 int intel_nhlt_get_dmic_geo(struct device *dev, struct nhlt_acpi_table *nhlt);
 134
 135 bool intel_nhlt_has_endpoint_type(struct nhlt_acpi_table *nhlt, u8 link_type);
 136
 137 int intel_nhlt_ssp_endpoint_mask(struct nhlt_acpi_table *nhlt, u8 device_type);
 138
 139 struct nhlt_specific_cfg *
 140 intel_nhlt_get_endpoint_blob(struct device *dev, struct nhlt_acpi_table *nhlt,
 141                              u32 bus_id, u8 link_type, u8 vbps, u8 bps,
 142                              u8 num_ch, u32 rate, u8 dir, u8 dev_type);
 143
 144 #else
 145
 146 static inline struct nhlt_acpi_table *intel_nhlt_init(struct device *dev)
 147 {
 148         return NULL;
 149 }
 150
 151 static inline void intel_nhlt_free(struct nhlt_acpi_table *addr)
 152 {
 153 }
 154
 155 static inline int intel_nhlt_get_dmic_geo(struct device *dev,
 156                                           struct nhlt_acpi_table *nhlt)
 157 {
 158         return 0;
 159 }
 160
 161 static inline bool intel_nhlt_has_endpoint_type(struct nhlt_acpi_table *nhlt,
 162                                                 u8 link_type)
 163 {
 164         return false;
 165 }
 166
 167 static inline int intel_nhlt_ssp_endpoint_mask(struct nhlt_acpi_table *nhlt, u8 device_type)
 168 {
 169         return 0;
 170 }
 171
 172 static inline struct nhlt_specific_cfg *
 173 intel_nhlt_get_endpoint_blob(struct device *dev, struct nhlt_acpi_table *nhlt,
 174                              u32 bus_id, u8 link_type, u8 vbps, u8 bps,
 175                              u8 num_ch, u32 rate, u8 dir, u8 dev_type)
 176 {
 177         return NULL;
 178 }
 179
 180 #endif
 181
 182 #endif