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Merge branch 'topic/hda-dmic' into for-next

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Pull HD-audio DMIC probe patchset from Pierre-Louis Bossart

Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2019-07-31 15:46:14 +02:00
commit c1c0c032c7
12 changed files with 212 additions and 108 deletions
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51
sound/soc/intel/skylake/skl-nhlt.h → include/sound/intel-nhlt.h
View File

@ -1,18 +1,17 @@
/* SPDX-License-Identifier: GPL-2.0-only */
/*
* skl-nhlt.h - Intel HDA Platform NHLT header
* intel-nhlt.h - Intel HDA Platform NHLT header
*
* Copyright (C) 2015 Intel Corp
* Author: Sanjiv Kumar <sanjiv.kumar@intel.com>
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
* Copyright (c) 2015-2019 Intel Corporation
*/
#ifndef __SKL_NHLT_H__
#define __SKL_NHLT_H__
#ifndef __INTEL_NHLT_H__
#define __INTEL_NHLT_H__
#include <linux/acpi.h>
#if IS_ENABLED(CONFIG_ACPI) && IS_ENABLED(CONFIG_SND_INTEL_NHLT)
struct wav_fmt {
u16 fmt_tag;
u16 channels;
@ -97,16 +96,22 @@ struct nhlt_resource_desc {
#define MIC_ARRAY_2CH 2
#define MIC_ARRAY_4CH 4
struct nhlt_tdm_config {
struct nhlt_device_specific_config {
u8 virtual_slot;
u8 config_type;
} __packed;
struct nhlt_dmic_array_config {
struct nhlt_tdm_config tdm_config;
struct nhlt_device_specific_config device_config;
u8 array_type;
} __packed;
struct nhlt_vendor_dmic_array_config {
struct nhlt_dmic_array_config dmic_config;
u8 nb_mics;
/* TODO add vendor mic config */
} __packed;
enum {
NHLT_MIC_ARRAY_2CH_SMALL = 0xa,
NHLT_MIC_ARRAY_2CH_BIG = 0xb,
@ -116,4 +121,30 @@ enum {
NHLT_MIC_ARRAY_VENDOR_DEFINED = 0xf,
};
struct nhlt_acpi_table *intel_nhlt_init(struct device *dev);
void intel_nhlt_free(struct nhlt_acpi_table *addr);
int intel_nhlt_get_dmic_geo(struct device *dev, struct nhlt_acpi_table *nhlt);
#else
struct nhlt_acpi_table;
static inline struct nhlt_acpi_table *intel_nhlt_init(struct device *dev)
{
return NULL;
}
static inline void intel_nhlt_free(struct nhlt_acpi_table *addr)
{
}
static inline int intel_nhlt_get_dmic_geo(struct device *dev,
struct nhlt_acpi_table *nhlt)
{
return 0;
}
#endif
#endif

5
sound/hda/Kconfig
View File

@ -29,3 +29,8 @@ config SND_HDA_PREALLOC_SIZE
Note that the pre-allocation size can be changed dynamically
via a proc file (/proc/asound/card*/pcm*/sub*/prealloc), too.
config SND_INTEL_NHLT
tristate
# this config should be selected only for Intel ACPI platforms.
# A fallback is provided so that the code compiles in all cases.

3
sound/hda/Makefile
View File

@ -13,3 +13,6 @@ obj-$(CONFIG_SND_HDA_CORE) += snd-hda-core.o
#extended hda
obj-$(CONFIG_SND_HDA_EXT_CORE) += ext/
snd-intel-nhlt-objs := intel-nhlt.o
obj-$(CONFIG_SND_INTEL_NHLT) += snd-intel-nhlt.o

107
sound/hda/intel-nhlt.c Normal file
View File

@ -0,0 +1,107 @@
// SPDX-License-Identifier: GPL-2.0
// Copyright (c) 2015-2019 Intel Corporation
#include <linux/acpi.h>
#include <sound/intel-nhlt.h>
#define NHLT_ACPI_HEADER_SIG "NHLT"
/* Unique identification for getting NHLT blobs */
static guid_t osc_guid =
GUID_INIT(0xA69F886E, 0x6CEB, 0x4594,
0xA4, 0x1F, 0x7B, 0x5D, 0xCE, 0x24, 0xC5, 0x53);
struct nhlt_acpi_table *intel_nhlt_init(struct device *dev)
{
acpi_handle handle;
union acpi_object *obj;
struct nhlt_resource_desc *nhlt_ptr;
struct nhlt_acpi_table *nhlt_table = NULL;
handle = ACPI_HANDLE(dev);
if (!handle) {
dev_err(dev, "Didn't find ACPI_HANDLE\n");
return NULL;
}
obj = acpi_evaluate_dsm(handle, &osc_guid, 1, 1, NULL);
if (!obj)
return NULL;
if (obj->type != ACPI_TYPE_BUFFER) {
dev_dbg(dev, "No NHLT table found\n");
ACPI_FREE(obj);
return NULL;
}
nhlt_ptr = (struct nhlt_resource_desc *)obj->buffer.pointer;
if (nhlt_ptr->length)
nhlt_table = (struct nhlt_acpi_table *)
memremap(nhlt_ptr->min_addr, nhlt_ptr->length,
MEMREMAP_WB);
ACPI_FREE(obj);
if (nhlt_table &&
(strncmp(nhlt_table->header.signature,
NHLT_ACPI_HEADER_SIG,
strlen(NHLT_ACPI_HEADER_SIG)) != 0)) {
memunmap(nhlt_table);
dev_err(dev, "NHLT ACPI header signature incorrect\n");
return NULL;
}
return nhlt_table;
}
EXPORT_SYMBOL_GPL(intel_nhlt_init);
void intel_nhlt_free(struct nhlt_acpi_table *nhlt)
{
memunmap((void *)nhlt);
}
EXPORT_SYMBOL_GPL(intel_nhlt_free);
int intel_nhlt_get_dmic_geo(struct device *dev, struct nhlt_acpi_table *nhlt)
{
struct nhlt_endpoint *epnt;
struct nhlt_dmic_array_config *cfg;
struct nhlt_vendor_dmic_array_config *cfg_vendor;
unsigned int dmic_geo = 0;
u8 j;
if (!nhlt)
return 0;
epnt = (struct nhlt_endpoint *)nhlt->desc;
for (j = 0; j < nhlt->endpoint_count; j++) {
if (epnt->linktype == NHLT_LINK_DMIC) {
cfg = (struct nhlt_dmic_array_config *)
(epnt->config.caps);
switch (cfg->array_type) {
case NHLT_MIC_ARRAY_2CH_SMALL:
case NHLT_MIC_ARRAY_2CH_BIG:
dmic_geo = MIC_ARRAY_2CH;
break;
case NHLT_MIC_ARRAY_4CH_1ST_GEOM:
case NHLT_MIC_ARRAY_4CH_L_SHAPED:
case NHLT_MIC_ARRAY_4CH_2ND_GEOM:
dmic_geo = MIC_ARRAY_4CH;
break;
case NHLT_MIC_ARRAY_VENDOR_DEFINED:
cfg_vendor = (struct nhlt_vendor_dmic_array_config *)cfg;
dmic_geo = cfg_vendor->nb_mics;
break;
default:
dev_warn(dev, "undefined DMIC array_type 0x%0x\n",
cfg->array_type);
}
}
epnt = (struct nhlt_endpoint *)((u8 *)epnt + epnt->length);
}
return dmic_geo;
}
EXPORT_SYMBOL_GPL(intel_nhlt_get_dmic_geo);
MODULE_LICENSE("GPL v2");
MODULE_DESCRIPTION("Intel NHLT driver");

10
sound/pci/hda/Kconfig
View File

@ -12,6 +12,7 @@ config SND_HDA_INTEL
tristate "HD Audio PCI"
depends on SND_PCI
select SND_HDA
select SND_INTEL_NHLT if ACPI
help
Say Y here to include support for Intel "High Definition
Audio" (Azalia) and its compatible devices.
@ -22,6 +23,15 @@ config SND_HDA_INTEL
To compile this driver as a module, choose M here: the module
will be called snd-hda-intel.
config SND_HDA_INTEL_DETECT_DMIC
bool "DMIC detection and probe abort"
depends on SND_HDA_INTEL
help
Say Y to detect digital microphones on SKL+ devices. DMICs
cannot be handled by the HDaudio legacy driver and are
currently only supported by the SOF driver.
If unsure say N.
config SND_HDA_TEGRA
tristate "NVIDIA Tegra HD Audio"
depends on ARCH_TEGRA

34
sound/pci/hda/hda_intel.c
View File

@ -46,6 +46,7 @@
#include <sound/initval.h>
#include <sound/hdaudio.h>
#include <sound/hda_i915.h>
#include <sound/intel-nhlt.h>
#include <linux/vgaarb.h>
#include <linux/vga_switcheroo.h>
#include <linux/firmware.h>
@ -124,6 +125,7 @@ static char *patch[SNDRV_CARDS];
static bool beep_mode[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] =
CONFIG_SND_HDA_INPUT_BEEP_MODE};
#endif
static bool dmic_detect = IS_ENABLED(CONFIG_SND_HDA_INTEL_DETECT_DMIC);
module_param_array(index, int, NULL, 0444);
MODULE_PARM_DESC(index, "Index value for Intel HD audio interface.");
@ -158,6 +160,8 @@ module_param_array(beep_mode, bool, NULL, 0444);
MODULE_PARM_DESC(beep_mode, "Select HDA Beep registration mode "
"(0=off, 1=on) (default=1).");
#endif
module_param(dmic_detect, bool, 0444);
MODULE_PARM_DESC(dmic_detect, "DMIC detect on SKL+ platforms");
#ifdef CONFIG_PM
static int param_set_xint(const char *val, const struct kernel_param *kp);
@ -2025,6 +2029,25 @@ static const struct hda_controller_ops pci_hda_ops = {
.position_check = azx_position_check,
};
static int azx_check_dmic(struct pci_dev *pci, struct azx *chip)
{
struct nhlt_acpi_table *nhlt;
int ret = 0;
if (chip->driver_type == AZX_DRIVER_SKL &&
pci->class != 0x040300) {
nhlt = intel_nhlt_init(&pci->dev);
if (nhlt) {
if (intel_nhlt_get_dmic_geo(&pci->dev, nhlt)) {
ret = -ENODEV;
dev_info(&pci->dev, "Digital mics found on Skylake+ platform, aborting probe\n");
}
intel_nhlt_free(nhlt);
}
}
return ret;
}
static int azx_probe(struct pci_dev *pci,
const struct pci_device_id *pci_id)
{
@ -2055,6 +2078,17 @@ static int azx_probe(struct pci_dev *pci,
card->private_data = chip;
hda = container_of(chip, struct hda_intel, chip);
/*
* stop probe if digital microphones detected on Skylake+ platform
* with the DSP enabled. This is an opt-in behavior defined at build
* time or at run-time with a module parameter
*/
if (dmic_detect) {
err = azx_check_dmic(pci, chip);
if (err < 0)
goto out_free;
}
pci_set_drvdata(pci, card);
err = register_vga_switcheroo(chip);

1
sound/soc/intel/Kconfig
View File

@ -215,6 +215,7 @@ config SND_SOC_INTEL_SKYLAKE_COMMON
select SND_SOC_INTEL_SST
select SND_SOC_HDAC_HDA if SND_SOC_INTEL_SKYLAKE_HDAUDIO_CODEC
select SND_SOC_ACPI_INTEL_MATCH
select SND_INTEL_NHLT
help
If you have a Intel Skylake/Broxton/ApolloLake/KabyLake/
GeminiLake or CannonLake platform with the DSP enabled in the BIOS

91
sound/soc/intel/skylake/skl-nhlt.c
View File

@ -9,57 +9,10 @@
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*/
#include <linux/pci.h>
#include <sound/intel-nhlt.h>
#include "skl.h"
#include "skl-i2s.h"
#define NHLT_ACPI_HEADER_SIG "NHLT"
/* Unique identification for getting NHLT blobs */
static guid_t osc_guid =
GUID_INIT(0xA69F886E, 0x6CEB, 0x4594,
0xA4, 0x1F, 0x7B, 0x5D, 0xCE, 0x24, 0xC5, 0x53);
struct nhlt_acpi_table *skl_nhlt_init(struct device *dev)
{
acpi_handle handle;
union acpi_object *obj;
struct nhlt_resource_desc *nhlt_ptr = NULL;
struct nhlt_acpi_table *nhlt_table = NULL;
handle = ACPI_HANDLE(dev);
if (!handle) {
dev_err(dev, "Didn't find ACPI_HANDLE\n");
return NULL;
}
obj = acpi_evaluate_dsm(handle, &osc_guid, 1, 1, NULL);
if (obj && obj->type == ACPI_TYPE_BUFFER) {
nhlt_ptr = (struct nhlt_resource_desc *)obj->buffer.pointer;
if (nhlt_ptr->length)
nhlt_table = (struct nhlt_acpi_table *)
memremap(nhlt_ptr->min_addr, nhlt_ptr->length,
MEMREMAP_WB);
ACPI_FREE(obj);
if (nhlt_table && (strncmp(nhlt_table->header.signature,
NHLT_ACPI_HEADER_SIG,
strlen(NHLT_ACPI_HEADER_SIG)) != 0)) {
memunmap(nhlt_table);
dev_err(dev, "NHLT ACPI header signature incorrect\n");
return NULL;
}
return nhlt_table;
}
dev_err(dev, "device specific method to extract NHLT blob failed\n");
return NULL;
}
void skl_nhlt_free(struct nhlt_acpi_table *nhlt)
{
memunmap((void *) nhlt);
}
static struct nhlt_specific_cfg *skl_get_specific_cfg(
struct device *dev, struct nhlt_fmt *fmt,
u8 no_ch, u32 rate, u16 bps, u8 linktype)
@ -162,48 +115,6 @@ struct nhlt_specific_cfg
return NULL;
}
int skl_get_dmic_geo(struct skl *skl)
{
struct nhlt_acpi_table *nhlt = (struct nhlt_acpi_table *)skl->nhlt;
struct nhlt_endpoint *epnt;
struct nhlt_dmic_array_config *cfg;
struct device *dev = &skl->pci->dev;
unsigned int dmic_geo = 0;
u8 j;
if (!nhlt)
return 0;
epnt = (struct nhlt_endpoint *)nhlt->desc;
for (j = 0; j < nhlt->endpoint_count; j++) {
if (epnt->linktype == NHLT_LINK_DMIC) {
cfg = (struct nhlt_dmic_array_config *)
(epnt->config.caps);
switch (cfg->array_type) {
case NHLT_MIC_ARRAY_2CH_SMALL:
case NHLT_MIC_ARRAY_2CH_BIG:
dmic_geo |= MIC_ARRAY_2CH;
break;
case NHLT_MIC_ARRAY_4CH_1ST_GEOM:
case NHLT_MIC_ARRAY_4CH_L_SHAPED:
case NHLT_MIC_ARRAY_4CH_2ND_GEOM:
dmic_geo |= MIC_ARRAY_4CH;
break;
default:
dev_warn(dev, "undefined DMIC array_type 0x%0x\n",
cfg->array_type);
}
}
epnt = (struct nhlt_endpoint *)((u8 *)epnt + epnt->length);
}
return dmic_geo;
}
static void skl_nhlt_trim_space(char *trim)
{
char *s = trim;

1
sound/soc/intel/skylake/skl-ssp-clk.c
View File

@ -11,6 +11,7 @@
#include <linux/platform_device.h>
#include <linux/clk-provider.h>
#include <linux/clkdev.h>
#include <sound/intel-nhlt.h>
#include "skl.h"
#include "skl-ssp-clk.h"
#include "skl-topology.h"

1
sound/soc/intel/skylake/skl-topology.c
View File

@ -12,6 +12,7 @@
#include <linux/types.h>
#include <linux/firmware.h>
#include <linux/uuid.h>
#include <sound/intel-nhlt.h>
#include <sound/soc.h>
#include <sound/soc-topology.h>
#include <uapi/sound/snd_sst_tokens.h>

12
sound/soc/intel/skylake/skl.c
View File

@ -26,9 +26,11 @@
#include <sound/hdaudio.h>
#include <sound/hda_i915.h>
#include <sound/hda_codec.h>
#include <sound/intel-nhlt.h>
#include "skl.h"
#include "skl-sst-dsp.h"
#include "skl-sst-ipc.h"
#if IS_ENABLED(CONFIG_SND_SOC_INTEL_SKYLAKE_HDAUDIO_CODEC)
#include "../../../soc/codecs/hdac_hda.h"
#endif
@ -516,7 +518,9 @@ static int skl_find_machine(struct skl *skl, void *driver_data)
if (pdata) {
skl->use_tplg_pcm = pdata->use_tplg_pcm;
mach->mach_params.dmic_num = skl_get_dmic_geo(skl);
mach->mach_params.dmic_num =
intel_nhlt_get_dmic_geo(&skl->pci->dev,
skl->nhlt);
}
return 0;
@ -1029,7 +1033,7 @@ static int skl_probe(struct pci_dev *pci,
device_disable_async_suspend(bus->dev);
skl->nhlt = skl_nhlt_init(bus->dev);
skl->nhlt = intel_nhlt_init(bus->dev);
if (skl->nhlt == NULL) {
#if !IS_ENABLED(CONFIG_SND_SOC_INTEL_SKYLAKE_HDAUDIO_CODEC)
@ -1095,7 +1099,7 @@ out_dsp_free:
out_clk_free:
skl_clock_device_unregister(skl);
out_nhlt_free:
skl_nhlt_free(skl->nhlt);
intel_nhlt_free(skl->nhlt);
out_free:
skl_free(bus);
@ -1144,7 +1148,7 @@ static void skl_remove(struct pci_dev *pci)
skl_dmic_device_unregister(skl);
skl_clock_device_unregister(skl);
skl_nhlt_remove_sysfs(skl);
skl_nhlt_free(skl->nhlt);
intel_nhlt_free(skl->nhlt);
skl_free(bus);
dev_set_drvdata(&pci->dev, NULL);
}

4
sound/soc/intel/skylake/skl.h
View File

@ -16,7 +16,6 @@
#include <sound/hdaudio_ext.h>
#include <sound/hda_codec.h>
#include <sound/soc.h>
#include "skl-nhlt.h"
#include "skl-ssp-clk.h"
#define SKL_SUSPEND_DELAY 2000
@ -129,13 +128,10 @@ struct skl_dsp_ops {
int skl_platform_unregister(struct device *dev);
int skl_platform_register(struct device *dev);
struct nhlt_acpi_table *skl_nhlt_init(struct device *dev);
void skl_nhlt_free(struct nhlt_acpi_table *addr);
struct nhlt_specific_cfg *skl_get_ep_blob(struct skl *skl, u32 instance,
u8 link_type, u8 s_fmt, u8 no_ch,
u32 s_rate, u8 dirn, u8 dev_type);
int skl_get_dmic_geo(struct skl *skl);
int skl_nhlt_update_topology_bin(struct skl *skl);
int skl_init_dsp(struct skl *skl);
int skl_free_dsp(struct skl *skl);