cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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intel-nhlt.h (3664B)

      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
     13enum 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
     21enum nhlt_device_type {
     22	NHLT_DEVICE_BT = 0,
     23	NHLT_DEVICE_DMIC = 1,
     24	NHLT_DEVICE_I2S = 4,
     25	NHLT_DEVICE_INVALID
     26};
     27
     28struct 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
     38struct 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
     49struct nhlt_specific_cfg {
     50	u32 size;
     51	u8 caps[];
     52} __packed;
     53
     54struct nhlt_fmt_cfg {
     55	struct wav_fmt_ext fmt_ext;
     56	struct nhlt_specific_cfg config;
     57} __packed;
     58
     59struct nhlt_fmt {
     60	u8 fmt_count;
     61	struct nhlt_fmt_cfg fmt_config[];
     62} __packed;
     63
     64struct 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
     78struct nhlt_acpi_table {
     79	struct acpi_table_header header;
     80	u8 endpoint_count;
     81	struct nhlt_endpoint desc[];
     82} __packed;
     83
     84struct 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
     97struct nhlt_device_specific_config {
     98	u8 virtual_slot;
     99	u8 config_type;
    100} __packed;
    101
    102struct nhlt_dmic_array_config {
    103	struct nhlt_device_specific_config device_config;
    104	u8 array_type;
    105} __packed;
    106
    107struct 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
    113enum {
    114	NHLT_CONFIG_TYPE_GENERIC = 0,
    115	NHLT_CONFIG_TYPE_MIC_ARRAY = 1
    116};
    117
    118enum {
    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
    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
    135bool intel_nhlt_has_endpoint_type(struct nhlt_acpi_table *nhlt, u8 link_type);
    136
    137int intel_nhlt_ssp_endpoint_mask(struct nhlt_acpi_table *nhlt, u8 device_type);
    138
    139struct nhlt_specific_cfg *
    140intel_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
    146static inline struct nhlt_acpi_table *intel_nhlt_init(struct device *dev)
    147{
    148	return NULL;
    149}
    150
    151static inline void intel_nhlt_free(struct nhlt_acpi_table *addr)
    152{
    153}
    154
    155static inline int intel_nhlt_get_dmic_geo(struct device *dev,
    156					  struct nhlt_acpi_table *nhlt)
    157{
    158	return 0;
    159}
    160
    161static inline bool intel_nhlt_has_endpoint_type(struct nhlt_acpi_table *nhlt,
    162						u8 link_type)
    163{
    164	return false;
    165}
    166
    167static inline int intel_nhlt_ssp_endpoint_mask(struct nhlt_acpi_table *nhlt, u8 device_type)
    168{
    169	return 0;
    170}
    171
    172static inline struct nhlt_specific_cfg *
    173intel_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