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ASoC: Intel: avs: Switch to acpi-nhlt

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Merge series from Cezary Rojewski <cezary.rojewski@intel.com>:

The change is based on rafael/acpi-nhlt [1] immutable branch which
Rafael kindly prepared for me. Without the topmost changes to ACPI/NHLT,
the patches present will fail to compile.

Recent changes for the ACPI tree [2] refactored interfaces of the NHLT
table. Currently we have two implementations - one found in acpi
subsystem (unused) and one in sound/hda/. As NHLT is part of ACPI, idea
is to make the former useful and then switch all users of existing
sound/hda/intel-nhlt.c to this new interface over time and remove the
duplicate afterward.

[1]: https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git/?h=acpi-nhlt
[2]: https://lore.kernel.org/linux-acpi/20240319083018.3159716-1-cezary.rojewski@intel.com/
This commit is contained in:
Mark Brown 2024-04-22 09:55:47 +09:00
commit d3f36e78d7
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
10 changed files with 615 additions and 209 deletions
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3
drivers/acpi/Kconfig
View File

@ -469,6 +469,9 @@ config ACPI_REDUCED_HARDWARE_ONLY
If you are unsure what to do, do not enable this option.
config ACPI_NHLT
bool
source "drivers/acpi/nfit/Kconfig"
source "drivers/acpi/numa/Kconfig"
source "drivers/acpi/apei/Kconfig"

1
drivers/acpi/Makefile
View File

@ -93,6 +93,7 @@ obj-$(CONFIG_ACPI_THERMAL_LIB) += thermal_lib.o
obj-$(CONFIG_ACPI_THERMAL) += thermal.o
obj-$(CONFIG_ACPI_PLATFORM_PROFILE) += platform_profile.o
obj-$(CONFIG_ACPI_NFIT) += nfit/
obj-$(CONFIG_ACPI_NHLT) += nhlt.o
obj-$(CONFIG_ACPI_NUMA) += numa/
obj-$(CONFIG_ACPI) += acpi_memhotplug.o
obj-$(CONFIG_ACPI_HOTPLUG_IOAPIC) += ioapic.o

289
drivers/acpi/nhlt.c Normal file
View File

@ -0,0 +1,289 @@
// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright(c) 2023-2024 Intel Corporation
*
* Authors: Cezary Rojewski <cezary.rojewski@intel.com>
* Amadeusz Slawinski <amadeuszx.slawinski@linux.intel.com>
*/
#define pr_fmt(fmt) "ACPI: NHLT: " fmt
#include <linux/acpi.h>
#include <linux/errno.h>
#include <linux/export.h>
#include <linux/minmax.h>
#include <linux/printk.h>
#include <linux/types.h>
#include <acpi/nhlt.h>
static struct acpi_table_nhlt *acpi_gbl_nhlt;
static struct acpi_table_nhlt empty_nhlt = {
.header = {
.signature = ACPI_SIG_NHLT,
},
};
/**
* acpi_nhlt_get_gbl_table - Retrieve a pointer to the first NHLT table.
*
* If there is no NHLT in the system, acpi_gbl_nhlt will instead point to an
* empty table.
*
* Return: ACPI status code of the operation.
*/
acpi_status acpi_nhlt_get_gbl_table(void)
{
acpi_status status;
status = acpi_get_table(ACPI_SIG_NHLT, 0, (struct acpi_table_header **)(&acpi_gbl_nhlt));
if (!acpi_gbl_nhlt)
acpi_gbl_nhlt = &empty_nhlt;
return status;
}
EXPORT_SYMBOL_GPL(acpi_nhlt_get_gbl_table);
/**
* acpi_nhlt_put_gbl_table - Release the global NHLT table.
*/
void acpi_nhlt_put_gbl_table(void)
{
acpi_put_table((struct acpi_table_header *)acpi_gbl_nhlt);
}
EXPORT_SYMBOL_GPL(acpi_nhlt_put_gbl_table);
/**
* acpi_nhlt_endpoint_match - Verify if an endpoint matches criteria.
* @ep: the endpoint to check.
* @link_type: the hardware link type, e.g.: PDM or SSP.
* @dev_type: the device type.
* @dir: stream direction.
* @bus_id: the ID of virtual bus hosting the endpoint.
*
* Either of @link_type, @dev_type, @dir or @bus_id may be set to a negative
* value to ignore the parameter when matching.
*
* Return: %true if endpoint matches specified criteria or %false otherwise.
*/
bool acpi_nhlt_endpoint_match(const struct acpi_nhlt_endpoint *ep,
int link_type, int dev_type, int dir, int bus_id)
{
return ep &&
(link_type < 0 || ep->link_type == link_type) &&
(dev_type < 0 || ep->device_type == dev_type) &&
(bus_id < 0 || ep->virtual_bus_id == bus_id) &&
(dir < 0 || ep->direction == dir);
}
EXPORT_SYMBOL_GPL(acpi_nhlt_endpoint_match);
/**
* acpi_nhlt_tb_find_endpoint - Search a NHLT table for an endpoint.
* @tb: the table to search.
* @link_type: the hardware link type, e.g.: PDM or SSP.
* @dev_type: the device type.
* @dir: stream direction.
* @bus_id: the ID of virtual bus hosting the endpoint.
*
* Either of @link_type, @dev_type, @dir or @bus_id may be set to a negative
* value to ignore the parameter during the search.
*
* Return: A pointer to endpoint matching the criteria, %NULL if not found or
* an ERR_PTR() otherwise.
*/
struct acpi_nhlt_endpoint *
acpi_nhlt_tb_find_endpoint(const struct acpi_table_nhlt *tb,
int link_type, int dev_type, int dir, int bus_id)
{
struct acpi_nhlt_endpoint *ep;
for_each_nhlt_endpoint(tb, ep)
if (acpi_nhlt_endpoint_match(ep, link_type, dev_type, dir, bus_id))
return ep;
return NULL;
}
EXPORT_SYMBOL_GPL(acpi_nhlt_tb_find_endpoint);
/**
* acpi_nhlt_find_endpoint - Search all NHLT tables for an endpoint.
* @link_type: the hardware link type, e.g.: PDM or SSP.
* @dev_type: the device type.
* @dir: stream direction.
* @bus_id: the ID of virtual bus hosting the endpoint.
*
* Either of @link_type, @dev_type, @dir or @bus_id may be set to a negative
* value to ignore the parameter during the search.
*
* Return: A pointer to endpoint matching the criteria, %NULL if not found or
* an ERR_PTR() otherwise.
*/
struct acpi_nhlt_endpoint *
acpi_nhlt_find_endpoint(int link_type, int dev_type, int dir, int bus_id)
{
/* TODO: Currently limited to table of index 0. */
return acpi_nhlt_tb_find_endpoint(acpi_gbl_nhlt, link_type, dev_type, dir, bus_id);
}
EXPORT_SYMBOL_GPL(acpi_nhlt_find_endpoint);
/**
* acpi_nhlt_endpoint_find_fmtcfg - Search endpoint's formats configuration space
* for a specific format.
* @ep: the endpoint to search.
* @ch: number of channels.
* @rate: samples per second.
* @vbps: valid bits per sample.
* @bps: bits per sample.
*
* Return: A pointer to format matching the criteria, %NULL if not found or
* an ERR_PTR() otherwise.
*/
struct acpi_nhlt_format_config *
acpi_nhlt_endpoint_find_fmtcfg(const struct acpi_nhlt_endpoint *ep,
u16 ch, u32 rate, u16 vbps, u16 bps)
{
struct acpi_nhlt_wave_formatext *wav;
struct acpi_nhlt_format_config *fmt;
for_each_nhlt_endpoint_fmtcfg(ep, fmt) {
wav = &fmt->format;
if (wav->valid_bits_per_sample == vbps &&
wav->samples_per_sec == rate &&
wav->bits_per_sample == bps &&
wav->channel_count == ch)
return fmt;
}
return NULL;
}
EXPORT_SYMBOL_GPL(acpi_nhlt_endpoint_find_fmtcfg);
/**
* acpi_nhlt_tb_find_fmtcfg - Search a NHLT table for a specific format.
* @tb: the table to search.
* @link_type: the hardware link type, e.g.: PDM or SSP.
* @dev_type: the device type.
* @dir: stream direction.
* @bus_id: the ID of virtual bus hosting the endpoint.
*
* @ch: number of channels.
* @rate: samples per second.
* @vbps: valid bits per sample.
* @bps: bits per sample.
*
* Either of @link_type, @dev_type, @dir or @bus_id may be set to a negative
* value to ignore the parameter during the search.
*
* Return: A pointer to format matching the criteria, %NULL if not found or
* an ERR_PTR() otherwise.
*/
struct acpi_nhlt_format_config *
acpi_nhlt_tb_find_fmtcfg(const struct acpi_table_nhlt *tb,
int link_type, int dev_type, int dir, int bus_id,
u16 ch, u32 rate, u16 vbps, u16 bps)
{
struct acpi_nhlt_format_config *fmt;
struct acpi_nhlt_endpoint *ep;
for_each_nhlt_endpoint(tb, ep) {
if (!acpi_nhlt_endpoint_match(ep, link_type, dev_type, dir, bus_id))
continue;
fmt = acpi_nhlt_endpoint_find_fmtcfg(ep, ch, rate, vbps, bps);
if (fmt)
return fmt;
}
return NULL;
}
EXPORT_SYMBOL_GPL(acpi_nhlt_tb_find_fmtcfg);
/**
* acpi_nhlt_find_fmtcfg - Search all NHLT tables for a specific format.
* @link_type: the hardware link type, e.g.: PDM or SSP.
* @dev_type: the device type.
* @dir: stream direction.
* @bus_id: the ID of virtual bus hosting the endpoint.
*
* @ch: number of channels.
* @rate: samples per second.
* @vbps: valid bits per sample.
* @bps: bits per sample.
*
* Either of @link_type, @dev_type, @dir or @bus_id may be set to a negative
* value to ignore the parameter during the search.
*
* Return: A pointer to format matching the criteria, %NULL if not found or
* an ERR_PTR() otherwise.
*/
struct acpi_nhlt_format_config *
acpi_nhlt_find_fmtcfg(int link_type, int dev_type, int dir, int bus_id,
u16 ch, u32 rate, u16 vbps, u16 bps)
{
/* TODO: Currently limited to table of index 0. */
return acpi_nhlt_tb_find_fmtcfg(acpi_gbl_nhlt, link_type, dev_type, dir, bus_id,
ch, rate, vbps, bps);
}
EXPORT_SYMBOL_GPL(acpi_nhlt_find_fmtcfg);
static bool acpi_nhlt_config_is_micdevice(struct acpi_nhlt_config *cfg)
{
return cfg->capabilities_size >= sizeof(struct acpi_nhlt_micdevice_config);
}
static bool acpi_nhlt_config_is_vendor_micdevice(struct acpi_nhlt_config *cfg)
{
struct acpi_nhlt_vendor_micdevice_config *devcfg = __acpi_nhlt_config_caps(cfg);
return cfg->capabilities_size >= sizeof(*devcfg) &&
cfg->capabilities_size == struct_size(devcfg, mics, devcfg->mics_count);
}
/**
* acpi_nhlt_endpoint_mic_count - Retrieve number of digital microphones for a PDM endpoint.
* @ep: the endpoint to return microphones count for.
*
* Return: A number of microphones or an error code if an invalid endpoint is provided.
*/
int acpi_nhlt_endpoint_mic_count(const struct acpi_nhlt_endpoint *ep)
{
union acpi_nhlt_device_config *devcfg;
struct acpi_nhlt_format_config *fmt;
struct acpi_nhlt_config *cfg;
u16 max_ch = 0;
if (!ep || ep->link_type != ACPI_NHLT_LINKTYPE_PDM)
return -EINVAL;
/* Find max number of channels based on formats configuration. */
for_each_nhlt_endpoint_fmtcfg(ep, fmt)
max_ch = max(fmt->format.channel_count, max_ch);
cfg = __acpi_nhlt_endpoint_config(ep);
devcfg = __acpi_nhlt_config_caps(cfg);
/* If @ep is not a mic array, fallback to channels count. */
if (!acpi_nhlt_config_is_micdevice(cfg) ||
devcfg->gen.config_type != ACPI_NHLT_CONFIGTYPE_MICARRAY)
return max_ch;
switch (devcfg->mic.array_type) {
case ACPI_NHLT_ARRAYTYPE_LINEAR2_SMALL:
case ACPI_NHLT_ARRAYTYPE_LINEAR2_BIG:
return 2;
case ACPI_NHLT_ARRAYTYPE_LINEAR4_GEO1:
case ACPI_NHLT_ARRAYTYPE_PLANAR4_LSHAPED:
case ACPI_NHLT_ARRAYTYPE_LINEAR4_GEO2:
return 4;
case ACPI_NHLT_ARRAYTYPE_VENDOR:
if (!acpi_nhlt_config_is_vendor_micdevice(cfg))
return -EINVAL;
return devcfg->vendor_mic.mics_count;
default:
pr_warn("undefined mic array type: %#x\n", devcfg->mic.array_type);
return max_ch;
}
}
EXPORT_SYMBOL_GPL(acpi_nhlt_endpoint_mic_count);

299
include/acpi/actbl2.h
View File

@ -1889,22 +1889,22 @@ struct nfit_device_handle {
/*******************************************************************************
*
* NHLT - Non HD Audio Link Table
*
* Conforms to: Intel Smart Sound Technology NHLT Specification
* Version 0.8.1, January 2020.
* NHLT - Non HDAudio Link Table
* Version 1
*
******************************************************************************/
/* Main table */
struct acpi_table_nhlt {
struct acpi_table_header header; /* Common ACPI table header */
u8 endpoint_count;
u8 endpoints_count;
/*
* struct acpi_nhlt_endpoint endpoints[];
* struct acpi_nhlt_config oed_config;
*/
};
struct acpi_nhlt_endpoint {
u32 descriptor_length;
u32 length;
u8 link_type;
u8 instance_id;
u16 vendor_id;
@ -1914,84 +1914,135 @@ struct acpi_nhlt_endpoint {
u8 device_type;
u8 direction;
u8 virtual_bus_id;
/*
* struct acpi_nhlt_config device_config;
* struct acpi_nhlt_formats_config formats_config;
* struct acpi_nhlt_devices_info devices_info;
*/
};
/* Types for link_type field above */
#define ACPI_NHLT_RESERVED_HD_AUDIO 0
#define ACPI_NHLT_RESERVED_DSP 1
#define ACPI_NHLT_PDM 2
#define ACPI_NHLT_SSP 3
#define ACPI_NHLT_RESERVED_SLIMBUS 4
#define ACPI_NHLT_RESERVED_SOUNDWIRE 5
#define ACPI_NHLT_TYPE_RESERVED 6 /* 6 and above are reserved */
/* All other values above are reserved */
/*
* Values for link_type field above
*
* Only types PDM and SSP are used
*/
#define ACPI_NHLT_LINKTYPE_HDA 0
#define ACPI_NHLT_LINKTYPE_DSP 1
#define ACPI_NHLT_LINKTYPE_PDM 2
#define ACPI_NHLT_LINKTYPE_SSP 3
#define ACPI_NHLT_LINKTYPE_SLIMBUS 4
#define ACPI_NHLT_LINKTYPE_SDW 5
#define ACPI_NHLT_LINKTYPE_UAOL 6
/* Values for device_id field above */
#define ACPI_NHLT_PDM_DMIC 0xAE20
#define ACPI_NHLT_BT_SIDEBAND 0xAE30
#define ACPI_NHLT_I2S_TDM_CODECS 0xAE23
#define ACPI_NHLT_DEVICEID_DMIC 0xAE20
#define ACPI_NHLT_DEVICEID_BT 0xAE30
#define ACPI_NHLT_DEVICEID_I2S 0xAE34
/* Values for device_type field above */
/* SSP Link */
#define ACPI_NHLT_LINK_BT_SIDEBAND 0
#define ACPI_NHLT_LINK_FM 1
#define ACPI_NHLT_LINK_MODEM 2
/* 3 is reserved */
#define ACPI_NHLT_LINK_SSP_ANALOG_CODEC 4
/* PDM Link */
#define ACPI_NHLT_PDM_ON_CAVS_1P8 0
#define ACPI_NHLT_PDM_ON_CAVS_1P5 1
/*
* Device types unique to endpoint of link_type=PDM
*
* Type PDM used for all SKL+ platforms
*/
#define ACPI_NHLT_DEVICETYPE_PDM 0
#define ACPI_NHLT_DEVICETYPE_PDM_SKL 1
/* Device types unique to endpoint of link_type=SSP */
#define ACPI_NHLT_DEVICETYPE_BT 0
#define ACPI_NHLT_DEVICETYPE_FM 1
#define ACPI_NHLT_DEVICETYPE_MODEM 2
#define ACPI_NHLT_DEVICETYPE_CODEC 4
/* Values for Direction field above */
#define ACPI_NHLT_DIR_RENDER 0
#define ACPI_NHLT_DIR_CAPTURE 1
#define ACPI_NHLT_DIR_RENDER_LOOPBACK 2
#define ACPI_NHLT_DIR_RENDER_FEEDBACK 3
#define ACPI_NHLT_DIR_RESERVED 4 /* 4 and above are reserved */
#define ACPI_NHLT_DIR_RENDER 0
#define ACPI_NHLT_DIR_CAPTURE 1
struct acpi_nhlt_device_specific_config {
struct acpi_nhlt_config {
u32 capabilities_size;
u8 capabilities[];
};
struct acpi_nhlt_gendevice_config {
u8 virtual_slot;
u8 config_type;
};
struct acpi_nhlt_device_specific_config_a {
u32 capabilities_size;
/* Values for config_type field above */
#define ACPI_NHLT_CONFIGTYPE_GENERIC 0
#define ACPI_NHLT_CONFIGTYPE_MICARRAY 1
struct acpi_nhlt_micdevice_config {
u8 virtual_slot;
u8 config_type;
u8 array_type;
};
/* Values for Config Type above */
/* Values for array_type field above */
#define ACPI_NHLT_CONFIG_TYPE_GENERIC 0x00
#define ACPI_NHLT_CONFIG_TYPE_MIC_ARRAY 0x01
#define ACPI_NHLT_CONFIG_TYPE_RENDER_FEEDBACK 0x03
#define ACPI_NHLT_CONFIG_TYPE_RESERVED 0x04 /* 4 and above are reserved */
#define ACPI_NHLT_ARRAYTYPE_LINEAR2_SMALL 0xA
#define ACPI_NHLT_ARRAYTYPE_LINEAR2_BIG 0xB
#define ACPI_NHLT_ARRAYTYPE_LINEAR4_GEO1 0xC
#define ACPI_NHLT_ARRAYTYPE_PLANAR4_LSHAPED 0xD
#define ACPI_NHLT_ARRAYTYPE_LINEAR4_GEO2 0xE
#define ACPI_NHLT_ARRAYTYPE_VENDOR 0xF
struct acpi_nhlt_device_specific_config_b {
u32 capabilities_size;
struct acpi_nhlt_vendor_mic_config {
u8 type;
u8 panel;
u16 speaker_position_distance; /* mm */
u16 horizontal_offset; /* mm */
u16 vertical_offset; /* mm */
u8 frequency_low_band; /* 5*Hz */
u8 frequency_high_band; /* 500*Hz */
u16 direction_angle; /* -180 - +180 */
u16 elevation_angle; /* -180 - +180 */
u16 work_vertical_angle_begin; /* -180 - +180 with 2 deg step */
u16 work_vertical_angle_end; /* -180 - +180 with 2 deg step */
u16 work_horizontal_angle_begin; /* -180 - +180 with 2 deg step */
u16 work_horizontal_angle_end; /* -180 - +180 with 2 deg step */
};
struct acpi_nhlt_device_specific_config_c {
u32 capabilities_size;
/* Values for Type field above */
#define ACPI_NHLT_MICTYPE_OMNIDIRECTIONAL 0
#define ACPI_NHLT_MICTYPE_SUBCARDIOID 1
#define ACPI_NHLT_MICTYPE_CARDIOID 2
#define ACPI_NHLT_MICTYPE_SUPERCARDIOID 3
#define ACPI_NHLT_MICTYPE_HYPERCARDIOID 4
#define ACPI_NHLT_MICTYPE_8SHAPED 5
#define ACPI_NHLT_MICTYPE_RESERVED 6
#define ACPI_NHLT_MICTYPE_VENDORDEFINED 7
/* Values for Panel field above */
#define ACPI_NHLT_MICLOCATION_TOP 0
#define ACPI_NHLT_MICLOCATION_BOTTOM 1
#define ACPI_NHLT_MICLOCATION_LEFT 2
#define ACPI_NHLT_MICLOCATION_RIGHT 3
#define ACPI_NHLT_MICLOCATION_FRONT 4
#define ACPI_NHLT_MICLOCATION_REAR 5
struct acpi_nhlt_vendor_micdevice_config {
u8 virtual_slot;
u8 config_type;
u8 array_type;
u8 mics_count;
struct acpi_nhlt_vendor_mic_config mics[];
};
struct acpi_nhlt_render_device_specific_config {
u32 capabilities_size;
union acpi_nhlt_device_config {
u8 virtual_slot;
struct acpi_nhlt_gendevice_config gen;
struct acpi_nhlt_micdevice_config mic;
struct acpi_nhlt_vendor_micdevice_config vendor_mic;
};
struct acpi_nhlt_wave_extensible {
/* Inherited from Microsoft's WAVEFORMATEXTENSIBLE. */
struct acpi_nhlt_wave_formatext {
u16 format_tag;
u16 channel_count;
u32 samples_per_sec;
@ -2001,144 +2052,28 @@ struct acpi_nhlt_wave_extensible {
u16 extra_format_size;
u16 valid_bits_per_sample;
u32 channel_mask;
u8 sub_format_guid[16];
u8 subformat[16];
};
/* Values for channel_mask above */
#define ACPI_NHLT_SPKR_FRONT_LEFT 0x1
#define ACPI_NHLT_SPKR_FRONT_RIGHT 0x2
#define ACPI_NHLT_SPKR_FRONT_CENTER 0x4
#define ACPI_NHLT_SPKR_LOW_FREQ 0x8
#define ACPI_NHLT_SPKR_BACK_LEFT 0x10
#define ACPI_NHLT_SPKR_BACK_RIGHT 0x20
#define ACPI_NHLT_SPKR_FRONT_LEFT_OF_CENTER 0x40
#define ACPI_NHLT_SPKR_FRONT_RIGHT_OF_CENTER 0x80
#define ACPI_NHLT_SPKR_BACK_CENTER 0x100
#define ACPI_NHLT_SPKR_SIDE_LEFT 0x200
#define ACPI_NHLT_SPKR_SIDE_RIGHT 0x400
#define ACPI_NHLT_SPKR_TOP_CENTER 0x800
#define ACPI_NHLT_SPKR_TOP_FRONT_LEFT 0x1000
#define ACPI_NHLT_SPKR_TOP_FRONT_CENTER 0x2000
#define ACPI_NHLT_SPKR_TOP_FRONT_RIGHT 0x4000
#define ACPI_NHLT_SPKR_TOP_BACK_LEFT 0x8000
#define ACPI_NHLT_SPKR_TOP_BACK_CENTER 0x10000
#define ACPI_NHLT_SPKR_TOP_BACK_RIGHT 0x20000
struct acpi_nhlt_format_config {
struct acpi_nhlt_wave_extensible format;
u32 capability_size;
u8 capabilities[];
struct acpi_nhlt_wave_formatext format;
struct acpi_nhlt_config config;
};
struct acpi_nhlt_formats_config {
u8 formats_count;
};
struct acpi_nhlt_device_specific_hdr {
u8 virtual_slot;
u8 config_type;
};
/* Types for config_type above */
#define ACPI_NHLT_GENERIC 0
#define ACPI_NHLT_MIC 1
#define ACPI_NHLT_RENDER 3
struct acpi_nhlt_mic_device_specific_config {
struct acpi_nhlt_device_specific_hdr device_config;
u8 array_type_ext;
};
/* Values for array_type_ext above */
#define ACPI_NHLT_ARRAY_TYPE_RESERVED 0x09 /* 9 and below are reserved */
#define ACPI_NHLT_SMALL_LINEAR_2ELEMENT 0x0A
#define ACPI_NHLT_BIG_LINEAR_2ELEMENT 0x0B
#define ACPI_NHLT_FIRST_GEOMETRY_LINEAR_4ELEMENT 0x0C
#define ACPI_NHLT_PLANAR_LSHAPED_4ELEMENT 0x0D
#define ACPI_NHLT_SECOND_GEOMETRY_LINEAR_4ELEMENT 0x0E
#define ACPI_NHLT_VENDOR_DEFINED 0x0F
#define ACPI_NHLT_ARRAY_TYPE_MASK 0x0F
#define ACPI_NHLT_ARRAY_TYPE_EXT_MASK 0x10
#define ACPI_NHLT_NO_EXTENSION 0x0
#define ACPI_NHLT_MIC_SNR_SENSITIVITY_EXT (1<<4)
struct acpi_nhlt_vendor_mic_count {
u8 microphone_count;
};
struct acpi_nhlt_vendor_mic_config {
u8 type;
u8 panel;
u16 speaker_position_distance; /* mm */
u16 horizontal_offset; /* mm */
u16 vertical_offset; /* mm */
u8 frequency_low_band; /* 5*Hz */
u8 frequency_high_band; /* 500*Hz */
u16 direction_angle; /* -180 - + 180 */
u16 elevation_angle; /* -180 - + 180 */
u16 work_vertical_angle_begin; /* -180 - + 180 with 2 deg step */
u16 work_vertical_angle_end; /* -180 - + 180 with 2 deg step */
u16 work_horizontal_angle_begin; /* -180 - + 180 with 2 deg step */
u16 work_horizontal_angle_end; /* -180 - + 180 with 2 deg step */
};
/* Values for Type field above */
#define ACPI_NHLT_MIC_OMNIDIRECTIONAL 0
#define ACPI_NHLT_MIC_SUBCARDIOID 1
#define ACPI_NHLT_MIC_CARDIOID 2
#define ACPI_NHLT_MIC_SUPER_CARDIOID 3
#define ACPI_NHLT_MIC_HYPER_CARDIOID 4
#define ACPI_NHLT_MIC_8_SHAPED 5
#define ACPI_NHLT_MIC_RESERVED6 6 /* 6 is reserved */
#define ACPI_NHLT_MIC_VENDOR_DEFINED 7
#define ACPI_NHLT_MIC_RESERVED 8 /* 8 and above are reserved */
/* Values for Panel field above */
#define ACPI_NHLT_MIC_POSITION_TOP 0
#define ACPI_NHLT_MIC_POSITION_BOTTOM 1
#define ACPI_NHLT_MIC_POSITION_LEFT 2
#define ACPI_NHLT_MIC_POSITION_RIGHT 3
#define ACPI_NHLT_MIC_POSITION_FRONT 4
#define ACPI_NHLT_MIC_POSITION_BACK 5
#define ACPI_NHLT_MIC_POSITION_RESERVED 6 /* 6 and above are reserved */
struct acpi_nhlt_vendor_mic_device_specific_config {
struct acpi_nhlt_mic_device_specific_config mic_array_device_config;
u8 number_of_microphones;
struct acpi_nhlt_vendor_mic_config mic_config[]; /* Indexed by number_of_microphones */
};
/* Microphone SNR and Sensitivity extension */
struct acpi_nhlt_mic_snr_sensitivity_extension {
u32 SNR;
u32 sensitivity;
};
/* Render device with feedback */
struct acpi_nhlt_render_feedback_device_specific_config {
u8 feedback_virtual_slot; /* Render slot in case of capture */
u16 feedback_channels; /* Informative only */
u16 feedback_valid_bits_per_sample;
};
/* Non documented structures */
struct acpi_nhlt_device_info_count {
u8 structure_count;
struct acpi_nhlt_format_config formats[];
};
struct acpi_nhlt_device_info {
u8 device_id[16];
u8 device_instance_id;
u8 device_port_id;
u8 id[16];
u8 instance_id;
u8 port_id;
};
struct acpi_nhlt_devices_info {
u8 devices_count;
struct acpi_nhlt_device_info devices[];
};
/*******************************************************************************

181
include/acpi/nhlt.h Normal file
View File

@ -0,0 +1,181 @@
/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright(c) 2023-2024 Intel Corporation
*
* Authors: Cezary Rojewski <cezary.rojewski@intel.com>
* Amadeusz Slawinski <amadeuszx.slawinski@linux.intel.com>
*/
#ifndef __ACPI_NHLT_H__
#define __ACPI_NHLT_H__
#include <linux/acpi.h>
#include <linux/kconfig.h>
#include <linux/overflow.h>
#include <linux/types.h>
#define __acpi_nhlt_endpoint_config(ep) ((void *)((ep) + 1))
#define __acpi_nhlt_config_caps(cfg) ((void *)((cfg) + 1))
/**
* acpi_nhlt_endpoint_fmtscfg - Get the formats configuration space.
* @ep: the endpoint to retrieve the space for.
*
* Return: A pointer to the formats configuration space.
*/
static inline struct acpi_nhlt_formats_config *
acpi_nhlt_endpoint_fmtscfg(const struct acpi_nhlt_endpoint *ep)
{
struct acpi_nhlt_config *cfg = __acpi_nhlt_endpoint_config(ep);
return (struct acpi_nhlt_formats_config *)((u8 *)(cfg + 1) + cfg->capabilities_size);
}
#define __acpi_nhlt_first_endpoint(tb) \
((void *)(tb + 1))
#define __acpi_nhlt_next_endpoint(ep) \
((void *)((u8 *)(ep) + (ep)->length))
#define __acpi_nhlt_get_endpoint(tb, ep, i) \
((i) ? __acpi_nhlt_next_endpoint(ep) : __acpi_nhlt_first_endpoint(tb))
#define __acpi_nhlt_first_fmtcfg(fmts) \
((void *)(fmts + 1))
#define __acpi_nhlt_next_fmtcfg(fmt) \
((void *)((u8 *)((fmt) + 1) + (fmt)->config.capabilities_size))
#define __acpi_nhlt_get_fmtcfg(fmts, fmt, i) \
((i) ? __acpi_nhlt_next_fmtcfg(fmt) : __acpi_nhlt_first_fmtcfg(fmts))
/*
* The for_each_nhlt_*() macros rely on an iterator to deal with the
* variable length of each endpoint structure and the possible presence
* of an OED-Config used by Windows only.
*/
/**
* for_each_nhlt_endpoint - Iterate over endpoints in a NHLT table.
* @tb: the pointer to a NHLT table.
* @ep: the pointer to endpoint to use as loop cursor.
*/
#define for_each_nhlt_endpoint(tb, ep) \
for (unsigned int __i = 0; \
__i < (tb)->endpoints_count && \
(ep = __acpi_nhlt_get_endpoint(tb, ep, __i)); \
__i++)
/**
* for_each_nhlt_fmtcfg - Iterate over format configurations.
* @fmts: the pointer to formats configuration space.
* @fmt: the pointer to format to use as loop cursor.
*/
#define for_each_nhlt_fmtcfg(fmts, fmt) \
for (unsigned int __i = 0; \
__i < (fmts)->formats_count && \
(fmt = __acpi_nhlt_get_fmtcfg(fmts, fmt, __i)); \
__i++)
/**
* for_each_nhlt_endpoint_fmtcfg - Iterate over format configurations in an endpoint.
* @ep: the pointer to an endpoint.
* @fmt: the pointer to format to use as loop cursor.
*/
#define for_each_nhlt_endpoint_fmtcfg(ep, fmt) \
for_each_nhlt_fmtcfg(acpi_nhlt_endpoint_fmtscfg(ep), fmt)
#if IS_ENABLED(CONFIG_ACPI_NHLT)
/*
* System-wide pointer to the first NHLT table.
*
* A sound driver may utilize acpi_nhlt_get/put_gbl_table() on its
* initialization and removal respectively to avoid excessive mapping
* and unmapping of the memory occupied by the table between streaming
* operations.
*/
acpi_status acpi_nhlt_get_gbl_table(void);
void acpi_nhlt_put_gbl_table(void);
bool acpi_nhlt_endpoint_match(const struct acpi_nhlt_endpoint *ep,
int link_type, int dev_type, int dir, int bus_id);
struct acpi_nhlt_endpoint *
acpi_nhlt_tb_find_endpoint(const struct acpi_table_nhlt *tb,
int link_type, int dev_type, int dir, int bus_id);
struct acpi_nhlt_endpoint *
acpi_nhlt_find_endpoint(int link_type, int dev_type, int dir, int bus_id);
struct acpi_nhlt_format_config *
acpi_nhlt_endpoint_find_fmtcfg(const struct acpi_nhlt_endpoint *ep,
u16 ch, u32 rate, u16 vbps, u16 bps);
struct acpi_nhlt_format_config *
acpi_nhlt_tb_find_fmtcfg(const struct acpi_table_nhlt *tb,
int link_type, int dev_type, int dir, int bus_id,
u16 ch, u32 rate, u16 vpbs, u16 bps);
struct acpi_nhlt_format_config *
acpi_nhlt_find_fmtcfg(int link_type, int dev_type, int dir, int bus_id,
u16 ch, u32 rate, u16 vpbs, u16 bps);
int acpi_nhlt_endpoint_mic_count(const struct acpi_nhlt_endpoint *ep);
#else /* !CONFIG_ACPI_NHLT */
static inline acpi_status acpi_nhlt_get_gbl_table(void)
{
return AE_NOT_FOUND;
}
static inline void acpi_nhlt_put_gbl_table(void)
{
}
static inline bool
acpi_nhlt_endpoint_match(const struct acpi_nhlt_endpoint *ep,
int link_type, int dev_type, int dir, int bus_id)
{
return false;
}
static inline struct acpi_nhlt_endpoint *
acpi_nhlt_tb_find_endpoint(const struct acpi_table_nhlt *tb,
int link_type, int dev_type, int dir, int bus_id)
{
return NULL;
}
static inline struct acpi_nhlt_format_config *
acpi_nhlt_endpoint_find_fmtcfg(const struct acpi_nhlt_endpoint *ep,
u16 ch, u32 rate, u16 vbps, u16 bps)
{
return NULL;
}
static inline struct acpi_nhlt_format_config *
acpi_nhlt_tb_find_fmtcfg(const struct acpi_table_nhlt *tb,
int link_type, int dev_type, int dir, int bus_id,
u16 ch, u32 rate, u16 vpbs, u16 bps)
{
return NULL;
}
static inline int acpi_nhlt_endpoint_mic_count(const struct acpi_nhlt_endpoint *ep)
{
return 0;
}
static inline struct acpi_nhlt_endpoint *
acpi_nhlt_find_endpoint(int link_type, int dev_type, int dir, int bus_id)
{
return NULL;
}
static inline struct acpi_nhlt_format_config *
acpi_nhlt_find_fmtcfg(int link_type, int dev_type, int dir, int bus_id,
u16 ch, u32 rate, u16 vpbs, u16 bps)
{
return NULL;
}
#endif /* CONFIG_ACPI_NHLT */
#endif /* __ACPI_NHLT_H__ */

1
sound/soc/intel/Kconfig
View File

@ -214,6 +214,7 @@ config SND_SOC_INTEL_AVS
depends on X86 || COMPILE_TEST
depends on PCI
depends on COMMON_CLK
select ACPI_NHLT if ACPI
select SND_SOC_ACPI if ACPI
select SND_SOC_TOPOLOGY
select SND_SOC_HDA

1
sound/soc/intel/avs/avs.h
View File

@ -150,7 +150,6 @@ struct avs_dev {
struct completion fw_ready;
struct work_struct probe_work;
struct nhlt_acpi_table *nhlt;
struct list_head comp_list;
struct mutex comp_list_mutex;
struct list_head path_list;

7
sound/soc/intel/avs/board_selection.c
View File

@ -10,10 +10,10 @@
#include <linux/module.h>
#include <linux/dmi.h>
#include <linux/pci.h>
#include <acpi/nhlt.h>
#include <linux/platform_device.h>
#include <sound/hda_codec.h>
#include <sound/hda_register.h>
#include <sound/intel-nhlt.h>
#include <sound/soc-acpi.h>
#include <sound/soc-component.h>
#include "avs.h"
@ -434,8 +434,7 @@ static int avs_register_dmic_board(struct avs_dev *adev)
struct snd_soc_acpi_mach mach = {{0}};
int ret;
if (!adev->nhlt ||
!intel_nhlt_has_endpoint_type(adev->nhlt, NHLT_LINK_DMIC)) {
if (!acpi_nhlt_find_endpoint(ACPI_NHLT_LINKTYPE_PDM, -1, -1, -1)) {
dev_dbg(adev->dev, "no DMIC endpoints present\n");
return 0;
}
@ -523,7 +522,7 @@ static int avs_register_i2s_boards(struct avs_dev *adev)
struct snd_soc_acpi_mach *mach;
int ret;
if (!adev->nhlt || !intel_nhlt_has_endpoint_type(adev->nhlt, NHLT_LINK_SSP)) {
if (!acpi_nhlt_find_endpoint(ACPI_NHLT_LINKTYPE_SSP, -1, -1, -1)) {
dev_dbg(adev->dev, "no I2S endpoints present\n");
return 0;
}

10
sound/soc/intel/avs/core.c
View File

@ -14,15 +14,16 @@
// foundation of this driver
//
#include <linux/acpi.h>
#include <linux/module.h>
#include <linux/pci.h>
#include <acpi/nhlt.h>
#include <sound/hda_codec.h>
#include <sound/hda_i915.h>
#include <sound/hda_register.h>
#include <sound/hdaudio.h>
#include <sound/hdaudio_ext.h>
#include <sound/intel-dsp-config.h>
#include <sound/intel-nhlt.h>
#include "../../codecs/hda.h"
#include "avs.h"
#include "cldma.h"
@ -215,9 +216,7 @@ static void avs_hda_probe_work(struct work_struct *work)
if (ret < 0)
return;
adev->nhlt = intel_nhlt_init(adev->dev);
if (!adev->nhlt)
dev_info(bus->dev, "platform has no NHLT\n");
acpi_nhlt_get_gbl_table();
avs_register_all_boards(adev);
@ -543,8 +542,7 @@ static void avs_pci_remove(struct pci_dev *pci)
avs_unregister_all_boards(adev);
if (adev->nhlt)
intel_nhlt_free(adev->nhlt);
acpi_nhlt_put_gbl_table();
avs_debugfs_exit(adev);
if (avs_platattr_test(adev, CLDMA))

32
sound/soc/intel/avs/path.c
View File

@ -6,7 +6,8 @@
// Amadeusz Slawinski <amadeuszx.slawinski@linux.intel.com>
//
#include <sound/intel-nhlt.h>
#include <linux/acpi.h>
#include <acpi/nhlt.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include "avs.h"
@ -143,10 +144,10 @@ static bool avs_dma_type_is_input(u32 dma_type)
static int avs_copier_create(struct avs_dev *adev, struct avs_path_module *mod)
{
struct nhlt_acpi_table *nhlt = adev->nhlt;
struct avs_tplg_module *t = mod->template;
struct avs_copier_cfg *cfg;
struct nhlt_specific_cfg *ep_blob;
struct acpi_nhlt_format_config *ep_blob;
struct acpi_nhlt_endpoint *ep;
union avs_connector_node_id node_id = {0};
size_t cfg_size, data_size;
void *data = NULL;
@ -175,18 +176,18 @@ static int avs_copier_create(struct avs_dev *adev, struct avs_path_module *mod)
else
fmt = t->cfg_ext->copier.out_fmt;
ep_blob = intel_nhlt_get_endpoint_blob(adev->dev,
nhlt, t->cfg_ext->copier.vindex.i2s.instance,
NHLT_LINK_SSP, fmt->valid_bit_depth, fmt->bit_depth,
fmt->num_channels, fmt->sampling_freq, direction,
NHLT_DEVICE_I2S);
ep = acpi_nhlt_find_endpoint(ACPI_NHLT_LINKTYPE_SSP,
ACPI_NHLT_DEVICETYPE_CODEC, direction,
t->cfg_ext->copier.vindex.i2s.instance);
ep_blob = acpi_nhlt_endpoint_find_fmtcfg(ep, fmt->num_channels, fmt->sampling_freq,
fmt->valid_bit_depth, fmt->bit_depth);
if (!ep_blob) {
dev_err(adev->dev, "no I2S ep_blob found\n");
return -ENOENT;
}
data = ep_blob->caps;
data_size = ep_blob->size;
data = ep_blob->config.capabilities;
data_size = ep_blob->config.capabilities_size;
/* I2S gateway's vindex is statically assigned in topology */
node_id.vindex = t->cfg_ext->copier.vindex.val;
@ -200,17 +201,16 @@ static int avs_copier_create(struct avs_dev *adev, struct avs_path_module *mod)
else
fmt = t->in_fmt;
ep_blob = intel_nhlt_get_endpoint_blob(adev->dev, nhlt, 0,
NHLT_LINK_DMIC, fmt->valid_bit_depth,
fmt->bit_depth, fmt->num_channels,
fmt->sampling_freq, direction, NHLT_DEVICE_DMIC);
ep = acpi_nhlt_find_endpoint(ACPI_NHLT_LINKTYPE_PDM, -1, direction, 0);
ep_blob = acpi_nhlt_endpoint_find_fmtcfg(ep, fmt->num_channels, fmt->sampling_freq,
fmt->valid_bit_depth, fmt->bit_depth);
if (!ep_blob) {
dev_err(adev->dev, "no DMIC ep_blob found\n");
return -ENOENT;
}
data = ep_blob->caps;
data_size = ep_blob->size;
data = ep_blob->config.capabilities;
data_size = ep_blob->config.capabilities_size;
/* DMIC gateway's vindex is statically assigned in topology */
node_id.vindex = t->cfg_ext->copier.vindex.val;