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2d670ea2bd
linux/include/sound
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Hui Wang 2d670ea2bd ALSA: jack: implement software jack injection via debugfs 
This change adds audio jack injection feature through debugfs, with
this feature, we could validate alsa userspace changes by injecting
plugin or plugout events to the non-phantom audio jacks.

With this change, the sound core will build the folders
$debugfs_mount_dir/sound/cardN if SND_DEBUG and DEBUG_FS are enabled.
And if users also enable the SND_JACK_INJECTION_DEBUG, the jack
injection nodes will be built in the folder cardN like below:

$tree $debugfs_mount_dir/sound
$debugfs_mount_dir/sound
├── card0
│   ├── HDMI_DP_pcm_10_Jack
│   │   ├── jackin_inject
│   │   ├── kctl_id
│   │   ├── mask_bits
│   │   ├── status
│   │   ├── sw_inject_enable
│   │   └── type
...
│   └── HDMI_DP_pcm_9_Jack
│       ├── jackin_inject
│       ├── kctl_id
│       ├── mask_bits
│       ├── status
│       ├── sw_inject_enable
│       └── type
└── card1
    ├── HDMI_DP_pcm_5_Jack
    │   ├── jackin_inject
    │   ├── kctl_id
    │   ├── mask_bits
    │   ├── status
    │   ├── sw_inject_enable
    │   └── type
    ...
    ├── Headphone_Jack
    │   ├── jackin_inject
    │   ├── kctl_id
    │   ├── mask_bits
    │   ├── status
    │   ├── sw_inject_enable
    │   └── type
    └── Headset_Mic_Jack
        ├── jackin_inject
        ├── kctl_id
        ├── mask_bits
        ├── status
        ├── sw_inject_enable
        └── type

The nodes kctl_id, mask_bits, status and type are read-only, users
could check jack or jack_kctl's information through them.

The nodes sw_inject_enable and jackin_inject are directly used for
injection. The sw_inject_enable is read-write, users could check if
software injection is enabled or not on this jack, and users could
echo 1 or 0 to enable or disable software injection on this jack. Once
the injection is enabled, the jack will not change by hardware events
anymore, once the injection is disabled, the jack will restore the
last reported hardware events to the jack. The jackin_inject is
write-only, if the injection is enabled, users could echo 1 or 0 to
this node to inject plugin or plugout events to this jack.

For the detailed usage information on these nodes, please refer to
Documentation/sound/designs/jack-injection.rst.

Reviewed-by: Takashi Iwai <tiwai@suse.de>
Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Signed-off-by: Hui Wang <hui.wang@canonical.com>
Link: https://lore.kernel.org/r/20210127085639.74954-2-hui.wang@canonical.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2021-02-02 10:37:07 +01:00
..
ac97 ASoC: ac97: convert to SPDX identifiers 2018-07-02 10:56:09 +01:00
sof ASoC: SOF: trace: Add runtime trace filtering mechanism 2020-12-07 14:22:05 +00:00
ac97_codec.h ALSA: ac97: Treat snd_ac97_bus_ops as const 2020-01-03 09:24:08 +01:00
aci.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
ad1816a.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
ad1843.h
adau1373.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 149 2019-05-30 11:25:18 -07:00
ak4xxx-adda.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
ak4113.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
ak4114.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
ak4117.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
ak4531_codec.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
ak4641.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
alc5623.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
asequencer.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
asound.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
asoundef.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
compress_driver.h ALSA: compress: allow pause and resume during draining 2020-11-27 19:45:05 +01:00
control.h ALSA: make snd_kcontrol_new name a normal string 2020-10-26 20:28:59 +01:00
core.h ALSA: jack: implement software jack injection via debugfs 2021-02-02 10:37:07 +01:00
cs35l33.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
cs35l34.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
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cs35l36.h ASoC: cs35l36: Add support for Cirrus CS35L36 Amplifier 2019-02-08 13:00:28 +00:00
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dmaengine_pcm.h ASoC: dmaengine_pcm: export soc_component_to_pcm 2020-06-12 14:18:02 +01:00
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es1688.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
graph_card.h ASoC: audio-graph: Expose helpers from audio graph 2020-11-10 17:28:23 +00:00
gus.h ALSA: isa/gus: remove -Wmissing-prototypes warnings 2020-07-07 11:59:59 +02:00
hda_chmap.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
hda_codec.h ALSA: remove trailing semicolon in macro definition 2020-11-28 09:50:20 +01:00
hda_component.h i915/snd_hdac: I915 subcomponent for the snd_hdac 2019-02-08 16:58:59 +01:00
hda_hwdep.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 32 2019-05-24 17:27:10 +02:00
hda_i915.h ALSA: hda: Make audio component support more generic 2018-07-17 22:25:48 +02:00
hda_register.h ALSA: hda: fix VS_LTRC register name 2020-08-27 14:22:17 +01:00
hda_regmap.h ALSA: hda: Manage concurrent reg access more properly 2020-01-13 13:40:41 +01:00
hda_verbs.h ALSA: hda: add verbs for stripe control 2019-01-14 19:52:23 +01:00
hdaudio_ext.h ASoC: hdac: make SOF HDA codec driver probe deterministic 2020-09-21 23:57:24 +01:00
hdaudio.h ALSA: hda: Add dma stop delay variable 2020-08-05 12:27:47 +02:00
hdmi-codec.h ASoC: hdmi-codec: Use set_jack ops to set jack 2020-09-22 12:48:03 +01:00
hwdep.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
i2c.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
info.h ALSA: info: Make snd_info_entry_ops as const 2020-01-03 09:24:18 +01:00
initval.h ALSA: Allow const arrays for legacy resource management helpers 2020-01-05 16:14:26 +01:00
intel-dsp-config.h ALSA: hda: intel-dsp-config: add helper for ACPI DSP driver selection 2020-11-19 18:24:35 +00:00
intel-nhlt.h ALSA: Replace zero-length array with flexible-array 2020-05-07 22:30:36 +02:00
jack.h ALSA: jack: implement software jack injection via debugfs 2021-02-02 10:37:07 +01:00
l3.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
madera-pdata.h ASoC: madera: Update SPDX headers 2019-06-26 12:27:50 +01:00
max9768.h ASoC: max9768: add driver for max9768 amplifier 2012-01-30 21:50:55 +00:00
max98088.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
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max98095.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
memalloc.h ALSA: memalloc: Make SG-buffer helper usable for continuous buffer, too 2020-06-15 18:01:52 +02:00
minors.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
mixer_oss.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
mpu401.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
omap-hdmi-audio.h ALSA: Replace HTTP links with HTTPS ones 2020-07-19 20:49:25 +02:00
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pcm_drm_eld.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
pcm_iec958.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
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pcm_params.h ALSA: pcm: Remove unused inline function snd_mask_sizeof 2020-09-09 18:43:07 +02:00
pcm-indirect.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61 2019-05-24 17:36:45 +02:00
pcm.h ALSA: fix kernel-doc markups 2020-10-26 15:26:31 +01:00
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pxa2xx-lib.h ASoC: pxa: remove snd_pcm_ops 2019-10-08 13:47:20 +01:00
rawmidi.h ALSA: rawmidi: Fix racy buffer resize under concurrent accesses 2020-05-07 22:29:14 +02:00
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rt1015.h ASoC: rt1015: add delay to fix pop noise from speaker 2020-11-05 17:25:17 +00:00
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rt5682.h ASoC: rt5682: Add a new property for the DMIC clock driving 2020-11-13 14:22:09 +00:00
s3c24xx_uda134x.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
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simple_card_utils.h ASoC: audio-graph: Expose new members for asoc_simple_priv 2020-11-10 17:28:22 +00:00
simple_card.h ASoC: simple-card: convert to SPDX identifiers 2018-07-02 10:52:47 +01:00
snd_wavefront.h ASoC: Updates for v4.15 2017-11-13 15:45:57 +01:00
soc-acpi-intel-match.h ASoC: Intel: common: add ACPI matching tables for Alder Lake 2020-12-09 16:52:04 +00:00
soc-acpi.h ASoC: soc-acpi: add helper to identify parent driver. 2020-11-19 18:24:36 +00:00
soc-card.h ASoC: soc-card: add snd_soc_card_remove_dai_link() 2020-05-30 02:11:42 +01:00
soc-component.h ASoC: soc-pcm: care trigger rollback 2020-12-09 12:13:38 +00:00
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soc-dapm.h ASoC: dapm: declare missing structure prototypes 2020-06-25 19:21:01 +01:00
soc-dpcm.h ASoC: export DPCM runtime update functions 2020-03-12 13:30:38 +00:00
soc-jack.h ASoC: add soc-jack.h 2020-11-30 12:54:02 +00:00
soc-link.h ASoC: soc-pcm: care trigger rollback 2020-12-09 12:13:38 +00:00
soc-topology.h ASoC: topology: Remove multistep topology loading 2020-11-04 17:51:05 +00:00
soc.h ASoC: soc-pcm: care trigger rollback 2020-12-09 12:13:38 +00:00
sof.h ASoC: SOF: nocodec: modify DAI link definitions 2020-11-20 16:42:14 +00:00
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