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There is cleanup required, related to release of phandles, during driver
removal and hence point remove callback to audio_graph_remove().
Fixes: 202e2f774543 ("ASoC: tegra: Add audio graph based card driver")
Depends-on: "ASoC: audio-graph: Rename functions needed for export"
Signed-off-by: Sameer Pujar <spujar@nvidia.com>
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/1612719418-5858-3-git-send-email-spujar@nvidia.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Following functions are renamed for a better global visibility.
graph_card_probe() --> audio_graph_card_probe()
graph_parse_of() --> audio_graph_parse_of()
graph_remove() --> audio_graph_remove() [exported as well]
The references of these are updated in audio graph and Tegra audio
graph card drivers.
Signed-off-by: Sameer Pujar <spujar@nvidia.com>
Cc: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/1612719418-5858-2-git-send-email-spujar@nvidia.com
Signed-off-by: Mark Brown <broonie@kernel.org>
The function simple_write_to_buffer() doesn't add string termination
at the end of buf, we need to handle it on our own. This change refers
to the function tokenize_input() in debug.c and the function
sof_dfsentry_trace_filter_write() in trace.c.
Fixes: 091c12e1f50c ("ASoC: SOF: debug: add new debugfs entries for IPC flood test")
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Signed-off-by: Hui Wang <hui.wang@canonical.com>
Link: https://lore.kernel.org/r/20210208103857.75705-1-hui.wang@canonical.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit adds mixer quirks for the Pioneer DJM-900NXS2 mixer. This
device has 6 capture channels, 5 of them allow setting the signal
source. This adds controls for these, similar to the DJM-250Mk2.
However, playpack channels are not controllable via software like on the
250Mk2, as they can only be set manually on the mixing console.
Read-only controls showing the currently selected playback channels are
omitted.
Signed-off-by: Fabian Lesniak <fabian@lesniak-it.de>
Link: https://lore.kernel.org/r/20210205215116.258724-2-fabian@lesniak-it.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This allows for N different devices to use the pioneer mixer quirk for
setting capture/record type and recording level. The impementation has
not changed much with the exception of an additional mask on
private_value to allow storing of a device index:
DEVICE MASK 0xff000000
GROUP_MASK 0x00ff0000
VALUE_MASK 0x0000ffff
This could be improved by changing the arrays of wValues for each
channel to contain named definitions (e.g. SND_DJM_CAP_LINE). It would
improve readability and perhaps would allow using the same array for
multiple channels. The channel number can be specified on the control
next to the wIndex.
Feedback is very much appreciated as I'm not the most proficient C
programmer but am learning as I go.
Signed-off-by: Olivia Mackintosh <livvy@base.nu>
Link: https://lore.kernel.org/r/20210205184256.10201-2-livvy@base.nu
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The commit e7bbb7acabf4 ("dmaengine: add peripheral configuration")
adds peripheral configuration for dma_slave_config.
This configuration is useful for some audio peripherals, for
example, the peripheral supports multi fifos, we can
let the DMA know which fifos are selected. So also add
this configuration for snd_dmaengine_dai_dma_data.
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Link: https://lore.kernel.org/r/1612509985-11063-1-git-send-email-shengjiu.wang@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Fix bitwidth mapping in i2s ctl register per APQ8016 document.
Fixes: b5022a36d28f ("ASoC: qcom: lpass: Use regmap_field for i2sctl and dmactl registers")
Reviewed-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Reviewed-by: Stephan Gerhold <stephan@gerhold.net>
Signed-off-by: Jun Nie <jun.nie@linaro.org>
Link: https://lore.kernel.org/r/20210201132941.460360-1-jun.nie@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
The commit f274baa49be6 ("ALSA: usb-audio: Allow non-vmalloc buffer
for PCM buffers") introduced the mode to allocate coherent pages for
PCM buffers, and it used bus->controller device as its DMA device.
It turned out, however, that bus->sysdev is a more appropriate device
to be used for DMA mapping in HCD code.
This patch corrects the device reference accordingly.
Note that, on most platforms, both point to the very same device,
hence this patch doesn't change anything practically. But on
platforms like xhcd-plat hcd, the change becomes effective.
Fixes: f274baa49be6 ("ALSA: usb-audio: Allow non-vmalloc buffer for PCM buffers")
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210205144559.29555-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Add master clock generation support in STM32 I2S driver.
The master clock provided by I2S can be used to feed a codec.
Signed-off-by: Olivier Moysan <olivier.moysan@foss.st.com>
Link: https://lore.kernel.org/r/20210205104404.18786-3-olivier.moysan@foss.st.com
Signed-off-by: Mark Brown <broonie@kernel.org>
HP Spectre x360 convertible devices rely on a mixed SoundWire+DMIC
configuration which wasn't well supported. This lead to the discovery
that we missed the TGL_HDMI quirk on a number of Dell devices, the
addition of DMIC autodetection (based on NHLT tables), the addition of
new component strings needed by UCM, and work-arounds due to
problematic DSDT tables.
Bard Liao (1):
ASoC: Intel: sof_sdw: add trace for dai links
Guennadi Liakhovetski (1):
ASoC: SOF: Intel: HDA: don't keep a temporary variable
Pierre-Louis Bossart (11):
ASoC: Intel: sof_sdw: add missing TGL_HDMI quirk for Dell SKU 0A3E
ASoC: Intel: sof_sdw: add missing TGL_HDMI quirk for Dell SKU 0A5E
ASoC: Intel: sof_sdw: add missing TGL_HDMI quirk for Dell SKU 0A32
ASoC: Intel: sof_sdw: reorganize quirks by generation
ASoC: Intel: sof-sdw: indent and add quirks consistently
ASoC: Intel: sof_sdw: add quirk for HP Spectre x360 convertible
ASoC: Intel: sof_sdw: add mic:dmic and cfg-mics component strings
ASoC: Intel: soc-acpi: add ACPI matching table for HP Spectre x360
ASoC: SOF: Intel: SoundWire: refine ACPI match
ASoC: SOF: Intel: detect DMIC number in SoundWire mixed config
ASoC: SOF: Intel: hda: add dev_dbg() when DMIC number is overridden
Rander Wang (1):
ASoC: Intel: sof_sdw: detect DMIC number based on mach params
sound/soc/intel/boards/sof_sdw.c | 131 ++++++-----
.../intel/common/soc-acpi-intel-tgl-match.c | 20 ++
sound/soc/sof/intel/hda.c | 208 ++++++++++++------
3 files changed, 241 insertions(+), 118 deletions(-)
--
2.25.1
regcache sync will be done in sdw device suspend/resume functions.
And we have different jack detection mechanism for SoundWire.
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20210204201739.25206-5-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Follow pattern from other drivers and use cancel_work_sync() for both
.remove() and .suspend().
Fixes: 03f6fc6de919 ('ASoC: rt5682: Add the soundwire support')
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@linux.intel.com>
Link: https://lore.kernel.org/r/20210204201739.25206-4-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Make sure the workqueues are not running after the .remove() callback,
which can lead to timeout errors.
A previous fix to use cancel_work_sync was applied for the suspend
case but the remove case is missing
Fixes: 501ef013390b ('ASoC: rt711: wait for the delayed work to finish when the system suspends')
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@linux.intel.com>
Link: https://lore.kernel.org/r/20210204201739.25206-3-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Make sure the workqueues are not running after the .remove() callback,
which can lead to timeout errors.
A previous fix to use cancel_work_sync was applied for the suspend
case but the remove case is missing
Fixes: 5f2df2a4583b ('ASoC: rt700: wait for the delayed work to finish when the system suspends')
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@linux.intel.com>
Link: https://lore.kernel.org/r/20210204201739.25206-2-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
We missed adding the TGL_HDMI quirk which is very much needed to
expose the 4 display pipelines and will be required on TGL topologies.
Fixes: e787f5b5b1406 ('ASoC: Intel: add support for new SoundWire hardware layout on TGL')
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Link: https://lore.kernel.org/r/20210204203312.27112-2-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
We missed adding the TGL_HDMI quirk which is very much needed to
expose the 4 display pipelines and will be required on TGL topologies.
Fixes: 488cdbd8931fe ('ASoC: Intel: sof_sdw: add quirk for new TigerLake-SDCA device')
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Link: https://lore.kernel.org/r/20210204203312.27112-4-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
We missed adding the TGL_HDMI quirk which is very much needed to
expose the 4 display pipelines and will be required on TGL topologies.
Fixes: 9ad9bc59dde10 ('ASoC: Intel: sof_sdw: set proper flags for Dell TGL-H SKU 0A5E')
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Link: https://lore.kernel.org/r/20210204203312.27112-3-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
The kerndoc comment for the new function snd_usb_endpoint_free_all()
had a typo wrt the argument name. Fix it.
Fixes: 00272c61827e ("ALSA: usb-audio: Avoid unnecessary interface re-setup")
Reported-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210205082837.6327-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The 1st and 2nd patch refactor to use asoc_substream_to_rtd().
The 3rd patch simplifies ops of Capture1 DAI link.
Changes from v2[1]:
- Fix typo in 3rd patch's title, s/simply/simplify/.
Changes from v1[2]:
- Separated from v1.
[1]: https://patchwork.kernel.org/project/alsa-devel/list/?series=420919
[2]: https://patchwork.kernel.org/project/alsa-devel/list/?series=419769
Tzung-Bi Shih (3):
ASoC: mediatek: mt8192-mt6359: use asoc_substream_to_rtd()
ASoC: mediatek: mt8192: use asoc_substream_to_rtd()
ASoC: mediatek: mt8192-mt6359: simplify ops for Capture1 DAI link
sound/soc/mediatek/mt8192/mt8192-afe-pcm.c | 4 ++--
.../mt8192/mt8192-mt6359-rt1015-rt5682.c | 24 ++++++++-----------
2 files changed, 12 insertions(+), 16 deletions(-)
--
2.30.0.365.g02bc693789-goog
This reverts commit a06cd8cf97a3 ("ASoC: da7218: skip of_device_id table
when !CONFIG_OF") because we want to make of_match_device() stop using
of_match_ptr() internally, confusing compilers and causing ifdef
pollution.
Reported-by: kernel test robot <lkp@intel.com>
Cc: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Cc: Mark Brown <broonie@kernel.org>
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Link: https://lore.kernel.org/r/20210202192016.49028-1-swboyd@chromium.org
Signed-off-by: Mark Brown <broonie@kernel.org>
soc-pcm has dpcm_runtime_merge_xxx() functions,
but uses parameters are very verbose.
dpcm_runtime_merge_format(..., &runtime->hw.formats);
dpcm_runtime_merge_chan(..., &runtime->hw.channels_min,
&runtime->hw.channels_max);
dpcm_runtime_merge_rate(..., &runtime->hw.rates,
&runtime->hw.rate_min,
&runtime->hw.rate_max);
We want to replace it into
dpcm_runtime_merge_format(..., runtime);
dpcm_runtime_merge_chan(..., runtime);
dpcm_runtime_merge_rate(..., runtime);
This patch do it.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/874kj9aigd.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
soc_new_pcm() implementation is very long / verbose / complex,
thus, it is very difficult to read.
If we read it carefully, we can notice that it is consisted by
int soc_new_pcm(...)
{
(1) judging playback/caputre part
(2) creating the PCM part
(3) setup pcm/rtd part
}
This patch adds new soc_create_pcm() for (2) part
and offload it from snd_pcm_new().
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/875z3paigi.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
soc_new_pcm() implementation is very long / verbose / complex,
thus, it is very difficult to read.
If we read it carefully, we can notice that it is consisted by
int soc_new_pcm(...)
{
(1) judging playback/caputre part
(2) creating the PCM part
(3) setup pcm/rtd part
}
This patch adds new soc_get_playback_capture() for (1) part
and offload it from soc_new_pcm().
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/877do5aign.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Eliminate the following coccicheck warning:
./sound/soc/intel/catpt/pcm.c:355:2-3: Unneeded semicolon
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Acked-by: Cezary Rojewski <cezary.rojewski@intel.com>
Link: https://lore.kernel.org/r/1612166481-121376-1-git-send-email-yang.lee@linux.alibaba.com
Signed-off-by: Mark Brown <broonie@kernel.org>
The commit 2d670ea2bd53 ("ALSA: jack: implement software jack
injection via debugfs") introduced a debugfs root for each sound card
object. The debugfs entry gets removed at the card removal, too, but
it turned out that debugfs_remove() is called at a wrong place; it's
after the card object gets freed, hence it leads to use-after-free.
Fix it by moving the debugfs_remove() at the right place, the
destructor of the card device.
Fixes: 2d670ea2bd53 ("ALSA: jack: implement software jack injection via debugfs")
Reported-and-tested-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://lore.kernel.org/r/161228343605.1150.8862281636043446562@build.alporthouse.com
Link: https://lore.kernel.org/r/20210202225629.1965-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
As the runtime PM issue was addressed by the recent fix 4961167bf748
("ALSA: hda/via: Apply the workaround generically for Clevo machines")
for VIA codecs, we need no longer to keep the Clevo device off from
the power saving as default. Drop the deny list entry accordingly.
Depends: 4961167bf748 ("ALSA: hda/via: Apply the workaround generically for Clevo machines")
Link: https://lore.kernel.org/r/20210202092744.20321-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
As with most Pioneer devices, the device descriptor is vendor specific
and as such, the number of channels, the PCM format, endpoints and
sample rate need to be specified. This device has 8 inputs and 8 outputs
and a sample rate of 48000 only. The PCM format is S24_3LE like other
devices.
There seems to be an appetite for reducing duplication amongs these
Pioneer patches but again, I feel this is a step to be taken after
support has been added as it's not completely clear where the
commonalities are.
Signed-off-by: Olivia Mackintosh <livvy@base.nu>
Link: https://lore.kernel.org/r/20210202134225.3217-3-livvy@base.nu
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Like the DJM-750, ensure that the format control message is passed to
the device when opening a stream. It seems as though fmt->sync_ep is not
always set when this function is called hence the passing of the value
at the call site. If this can be fixed, fmt->sync_up should be used as
the wvalue.
There doesn't seem to be a "cpu_to_le24" type function defined hence for
the open code but I did see a similar thing done in Bluez lib. Perhaps
we can get these definitions defined in byteorder.h. See hci_cpu_to_le24
in include/net/bluetooth/hci.h:2543 for similar usage.
Signed-off-by: Olivia Mackintosh <livvy@base.nu>
Link: https://lore.kernel.org/r/20210202134225.3217-2-livvy@base.nu
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Had a typo in lpass platform driver that resulted in crash
during suspend/resume with an HDMI dongle connected.
The regmap read/write/volatile regesters validation callbacks in lpass-cpu
were using MI2S rdma_channels count instead of hdmi_rdma_channels.
This typo error causing to read registers from the regmap beyond the length
of the mapping created by ioremap().
This fix avoids the need for reducing number hdmi_rdma_channels,
which is done in
commit 7dfe20ee92f6 ("ASoC: qcom: Fix number of HDMI RDMA channels on sc7180").
So reverting the same.
Fixes: 7cb37b7bd0d3c ("ASoC: qcom: Add support for lpass hdmi driver")
Signed-off-by: Srinivasa Rao Mandadapu <srivasam@codeaurora.org>
Link: https://lore.kernel.org/r/20210202062727.22469-1-srivasam@codeaurora.org
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Tested-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
When creating topology templates and overriding data in specific test
cases it should be done with cpu_to_le32 macro, so we operate on correct
data on all architectures, as topology parser use le32_to_cpu to parse
data from structures.
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Link: https://lore.kernel.org/r/20210202163123.3942040-1-amadeuszx.slawinski@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
DT properties "dmic-mode" and "mic-type-X" are optional. Reduces the
log verbosity and changes the message a bit to avoid misleading.
Signed-off-by: Tzung-Bi Shih <tzungbi@google.com>
Link: https://lore.kernel.org/r/20210202033557.1621029-1-tzungbi@google.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Fixup BE DAI links channel count to match topology settings. Normally the
channel count of BE is equal to FE's so we don't have any issue. For some
cases like DSM with 2-channel FE and 4-channel BE the mismatch of BE and
topology will result in audio issues.
Signed-off-by: Rander Wang <rander.wang@intel.com>
Reviewed-by: Keyon Jie <yang.jie@intel.com>
Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Link: https://lore.kernel.org/r/20210201092345.1214232-1-kai.vehmanen@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
All amba drivers return 0 in their remove callback. Together with the
driver core ignoring the return value anyhow, it doesn't make sense to
return a value here.
Change the remove prototype to return void, which makes it explicit that
returning an error value doesn't work as expected. This simplifies changing
the core remove callback to return void, too.
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Acked-by: Krzysztof Kozlowski <krzk@kernel.org> # for drivers/memory
Acked-by: Mark Brown <broonie@kernel.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Suzuki K Poulose <suzuki.poulose@arm.com> # for hwtracing/coresight
Acked-By: Vinod Koul <vkoul@kernel.org> # for dmaengine
Acked-by: Guenter Roeck <linux@roeck-us.net> # for watchdog
Acked-by: Wolfram Sang <wsa@kernel.org> # for I2C
Acked-by: Takashi Iwai <tiwai@suse.de> # for sound
Acked-by: Vladimir Zapolskiy <vz@mleia.com> # for memory/pl172
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20210126165835.687514-5-u.kleine-koenig@pengutronix.de
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
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>
Output loopback is a feature where you can record what you hear.
The HDSP series of the RME interfaces provides this functionality
at the hardware level and this patch exposes controls to enable or
disable it per output (playback) channel.
This probably works on other cards but due to a lack of hardware
it is only tested and enabled for the HDSP9632 card with this patch.
Should this patch be accepted a separate patch will be posted to
https://github.com/alsa-project/alsa-tools/tree/master/hdspmixer
which adds "LPBK" buttons to each output in the playback strip for
the user to be able to control this feature from the user land.
Users from Windows tool TotalMixFX should be familiar with this.
Signed-off-by: Jasmin Fazlic <superfassl@gmail.com>
Link: https://lore.kernel.org/r/95cb3117-e85a-51a6-c2ce-bf736e70fc4c@gmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
