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; 133 134 static inline struct nhlt_acpi_table *intel_nhlt_init(struct device *dev) 135 { 136 return NULL; 137 } 138 139 static inline void intel_nhlt_free(struct nhlt_acpi_table *addr) 140 { 141 } 142 143 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