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kernel/linux-rt-4.4.41/sound/soc/intel/skylake/skl-nhlt.h 2.15 KB
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  /*
   *  skl-nhlt.h - Intel HDA Platform NHLT header
   *
   *  Copyright (C) 2015 Intel Corp
   *  Author: Sanjiv Kumar <sanjiv.kumar@intel.com>
   *  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   *
   *  This program is free software; you can redistribute it and/or modify
   *  it under the terms of the GNU General Public License as published by
   *  the Free Software Foundation; version 2 of the License.
   *
   *  This program is distributed in the hope that it will be useful, but
   *  WITHOUT ANY WARRANTY; without even the implied warranty of
   *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   *  General Public License for more details.
   *
   * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   *
   */
  #ifndef __SKL_NHLT_H__
  #define __SKL_NHLT_H__
  
  #include <linux/acpi.h>
  
  struct wav_fmt {
  	u16 fmt_tag;
  	u16 channels;
  	u32 samples_per_sec;
  	u32 avg_bytes_per_sec;
  	u16 block_align;
  	u16 bits_per_sample;
  	u16 cb_size;
  } __packed;
  
  struct wav_fmt_ext {
  	struct wav_fmt fmt;
  	union samples {
  		u16 valid_bits_per_sample;
  		u16 samples_per_block;
  		u16 reserved;
  	} sample;
  	u32 channel_mask;
  	u8 sub_fmt[16];
  } __packed;
  
  enum nhlt_link_type {
  	NHLT_LINK_HDA = 0,
  	NHLT_LINK_DSP = 1,
  	NHLT_LINK_DMIC = 2,
  	NHLT_LINK_SSP = 3,
  	NHLT_LINK_INVALID
  };
  
  enum nhlt_device_type {
  	NHLT_DEVICE_BT = 0,
  	NHLT_DEVICE_DMIC = 1,
  	NHLT_DEVICE_I2S = 4,
  	NHLT_DEVICE_INVALID
  };
  
  struct nhlt_specific_cfg {
  	u32 size;
  	u8 caps[0];
  } __packed;
  
  struct nhlt_fmt_cfg {
  	struct wav_fmt_ext fmt_ext;
  	struct nhlt_specific_cfg config;
  } __packed;
  
  struct nhlt_fmt {
  	u8 fmt_count;
  	struct nhlt_fmt_cfg fmt_config[0];
  } __packed;
  
  struct nhlt_endpoint {
  	u32  length;
  	u8   linktype;
  	u8   instance_id;
  	u16  vendor_id;
  	u16  device_id;
  	u16  revision_id;
  	u32  subsystem_id;
  	u8   device_type;
  	u8   direction;
  	u8   virtual_bus_id;
  	struct nhlt_specific_cfg config;
  } __packed;
  
  struct nhlt_acpi_table {
  	struct acpi_table_header header;
  	u8 endpoint_count;
  	struct nhlt_endpoint desc[0];
  } __packed;
  
  struct nhlt_resource_desc  {
  	u32 extra;
  	u16 flags;
  	u64 addr_spc_gra;
  	u64 min_addr;
  	u64 max_addr;
  	u64 addr_trans_offset;
  	u64 length;
  } __packed;
  
  #endif