Commit graph

2721 commits

Author SHA1 Message Date
Wu Fengguang
744626dada ALSA: hda - delayed ELD repoll
The Intel HDMI chips (ironlake at least) are found to have ~250ms delay
between the ELD_Valid=1 hotplug event is send and the ELD buffer becomes
actually readable. During the time the ELD buffer is mysteriously all 0.

Fix it by scheduling a delayed work to re-read ELD buffer after 300ms.

Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-11-16 10:44:42 +01:00
Wu Fengguang
b95d68b817 ALSA: hda - fix ELD memory leak
memset(eld) clears eld->proc_entry which will leak the struct
snd_info_entry when unloading module.

Fix it by
- memset only the fields before eld->eld_buffer
- set eld->eld_valid to true _after_ all eld fields have been filled

Cc: <stable@kernel.org>
Cc: Pierre-louis Bossart <pierre-louis.bossart@intel.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-11-16 10:44:21 +01:00
Jesper Juhl
e53de8f00c ALSA: hda/realtek: remove redundant semicolon
Having just one semicolon after a break statement is enough.

Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-11-14 10:41:46 +01:00
Charles Chin
afef2cfa0e ALSA: hda - pwr_nids cleanup for IDT codecs
Clean up and fix pwr_nids for 92HD71 / 73 / 83 family codecs; remove
pwr_mapping which was incorrect.

The original pwr_nids support of 92HD83xxx was incorrect and never
actually worked before.  Now we should have things working correctly
without having to hack by DID anymore.

It is also not necessary to explicitly turn on all the pins near the
beginning of patch_stac92hd83xxx() now, the pins will go though
initialization properly.

Tested on 92HD66 / 71 / 73 / 75 / 83 / 89 / 91 demo boards.

Signed-off-by: Charles Chin <Charles.Chin@idt.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-11-11 08:05:28 +01:00
Takashi Iwai
2f451d2a2a ALSA: hda - Re-enable the check NO_PRESENCE misc bit
We disabled the check of NO_PRESENCE bit of the default pin-config
in commit f4419172 temporarily.  One problem was that the first
implementation was wrong -- the bit after the shift must be checked.
However, this would still give many regressions on machines with broken
BIOS.  They set this bit wrongly even on active pins.

A workaround is to check whether all pins contain this bit.  As far as
I've checked, broken BIOSen set this bit on all pins, no matter whether
active or not.  In such a case, the driver should ignore this bit check.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-11-10 12:36:46 +01:00
Takashi Iwai
aeb4b88ec0 ALSA: hda - Don't add elements of other codecs to vmaster slave
When a virtual mater control is created, the driver looks for slave
elements from the assigned card instance.  But this may include the
elements of other codecs when multiple codecs are on the same HD-audio
bus.  This works at the first time, but it'll give Oops when it's once
freed and re-created via reconfig sysfs.

This patch changes the element-look-up strategy to limit only to the
mixer elements of the same codec.

Reported-by: David Henningsson <david.henningsson@canonical.com>
Cc: <stable@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-11-10 12:32:08 +01:00
Julian Wollrath
f7f9bdfadf ALSA: hda - fix internal mic on Dell Vostro 3500 laptop
Fix the not working internal mic on Dell Vostro 3500 laptop by introducing the
new model dell-vostro-3500.

Signed-off-by: Julian Wollrath <jwollrath@web.de>
Cc: <stable@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-11-09 11:03:29 +01:00
David Henningsson
8d1c963a2e ALSA: HDA: Remove quirk for Toshiba T110
According to the bug reporter, model=auto is needed to make the
internal microphone work.

BugLink: https://bugs.launchpad.net/bugs/819699
Reported-by: Andrej (agno01)
Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-11-09 08:51:28 +01:00
Takashi Iwai
dccc1810f4 ALSA: hda - Mute unused capture sources for Realtek codecs
When a Realtek codec has a matrix-style capture-source selection, we
need to scan all connections instead of only imux items.  Otherwise some
input might be kept unmuted.  Although the corresponding input must be
dead so there should be no input from it, it's still safer to mute the
route completely.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-11-08 07:52:19 +01:00
Linus Torvalds
32aaeffbd4 Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux
* 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux: (230 commits)
  Revert "tracing: Include module.h in define_trace.h"
  irq: don't put module.h into irq.h for tracking irqgen modules.
  bluetooth: macroize two small inlines to avoid module.h
  ip_vs.h: fix implicit use of module_get/module_put from module.h
  nf_conntrack.h: fix up fallout from implicit moduleparam.h presence
  include: replace linux/module.h with "struct module" wherever possible
  include: convert various register fcns to macros to avoid include chaining
  crypto.h: remove unused crypto_tfm_alg_modname() inline
  uwb.h: fix implicit use of asm/page.h for PAGE_SIZE
  pm_runtime.h: explicitly requires notifier.h
  linux/dmaengine.h: fix implicit use of bitmap.h and asm/page.h
  miscdevice.h: fix up implicit use of lists and types
  stop_machine.h: fix implicit use of smp.h for smp_processor_id
  of: fix implicit use of errno.h in include/linux/of.h
  of_platform.h: delete needless include <linux/module.h>
  acpi: remove module.h include from platform/aclinux.h
  miscdevice.h: delete unnecessary inclusion of module.h
  device_cgroup.h: delete needless include <linux/module.h>
  net: sch_generic remove redundant use of <linux/module.h>
  net: inet_timewait_sock doesnt need <linux/module.h>
  ...

Fix up trivial conflicts (other header files, and  removal of the ab3550 mfd driver) in
 - drivers/media/dvb/frontends/dibx000_common.c
 - drivers/media/video/{mt9m111.c,ov6650.c}
 - drivers/mfd/ab3550-core.c
 - include/linux/dmaengine.h
2011-11-06 19:44:47 -08:00
Takashi Iwai
f441917256 ALSA: hda - Revert the check of NO_PRESENCE pincfg default bit
The implementation on commit [08a1f5eb: ALSA: hda - Check NO_PRESENCE
pincfg default bit] seems like a mis-interpretation of specification.
The spec gives the reversed bit definition.  But, following the spec
also causes to change so many existing device configurations, thus we
can't change it so easily for now.  For 3.2-rc1, it's safer to revert
this check (actually this patch comments out the code).

We may re-introduced the fixed version once after the wider test-case
coverages are done.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-11-06 14:07:37 +01:00
Takashi Iwai
69f9ba9b0c ALSA: hda - Fix a regression for DMA-position check with CA0110
The regression-fix in 3.1 for the check of DMA-position validity caused
yet another regression for CA0110.  As usual, this hardware seems working
only with LPIB properly.  Adding the appropriate driver-caps bit to force
LPIB fixes the problem.

Reported-and-tested-by: Andres Freund <andres@anarazel.de>
Cc: <stable@kernel.org> [v3.1]
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-11-06 13:49:13 +01:00
Takashi Iwai
43dea228a3 ALSA: hda - Fix silent output regression with ALC861
The 3.1 kernel has a regression for ALC861 codec where no sound output
is heard with the default setup.  It's because the amps in DACs aren't
properly unmuted while the output mixers are assigned only to pins.

This patch fixes the missing initialization of DACs when no mixer is
assigned to them.

Tested-by: Andrea Iob <andrea_iob@yahoo.it>
Cc: <stable@kernel.org> [v3.1+]
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-11-06 11:25:34 +01:00
Takashi Iwai
51e4152a96 ALSA: hda/realtek - Skip invalid digital out pins
Some BIOS report invalid pins as digital output pins.  The driver checks
the connection but it doesn't do it fully correctly, and it leaves some
undefined value as the audio-out widget, which makes the driver spewing
warnings.  This patch fixes the issue.

Reference: https://bugzilla.novell.com/show_bug.cgi?id=727348

Cc: <stable@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-11-03 17:00:27 +01:00
Charles Chin
9009b0e41c ALSA: hda/sigmatel - Automatically retrieve digital I/O widgets
Revise stac92xx_parse_auto_config to automatically scan for digital input
and output converters.

Signed-off-by: Charles Chin <Charles.Chin@idt.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-11-03 10:28:17 +01:00
Takashi Iwai
112daa7a4c ALSA: hda - Remove unused variables
Just clean-up what GCC caught.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-11-02 21:40:06 +01:00
Takashi Iwai
1fa1757366 ALSA: hda/realtek - Don't create alt-stream for capture when unnecessary
When the driver finds multiple ADCs, it tries to create an alternative
capture PCM stream.  However, these secondary ADCs might be useless or
in uncontrolled paths in some cases, e.g. when auto-mic or dynamic
ADC-switching is enabled.  Also, when only a single capture source is
available, the multi-streams don't make sense, too.

With this patch, the driver checks such condition and skips the alt
stream appropriately.

Cc: <stable@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-11-02 21:30:51 +01:00
Charles Chin
ad5d875511 ALSA: hda - Add support for 92HD65 / 92HD66 family of codecs
These codecs have SPDIF-in, which is new to the 92HD83xxx compatible
families, so a bit of logic is added to support them.

Signed-off-by: Charles Chin <Charles.Chin@idt.com>
Cc: <stable@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-11-02 07:56:58 +01:00
Charles Chin
35c11777b9 ALSA: hda - Disable power-widget control for IDT 92HD83/93 as default
The power-widget control in patch_stac92hd83xxx() never worked properly,
thus it's safer to turn it off as default for now.

Signed-off-by: Charles Chin <Charles.Chin@idt.com>
Cc: <stable@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-11-02 07:53:30 +01:00
Takashi Iwai
08a1f5eb43 ALSA: hda - Check NO_PRESENCE pincfg default bit
HD-audio spec defines a bit in pin default configuration for indicating
that the pin isn't used for jack-detection although the codec is capable
of it.  Better to check this bit as well in jack_is_detectable() helper
function.

Reported-by: Raymond Yau <superquad.vortex2@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-11-02 07:46:19 +01:00
Alexander Stein
359f90982c ALSA: hda_hwdep: Fix possible buffer overflow
If a line in the firmware file is larger than the given buffer size (and
so the firmware file size), size is set to a value larger than the actual
buffer size. This results in an overflow in the buffer passed.

Signed-off-by: Alexander Stein <alexander.stein@systec-electronic.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-11-01 09:46:39 +01:00
Paul Gortmaker
d81a6d7176 sound: Add export.h for THIS_MODULE/EXPORT_SYMBOL where needed
These aren't modules, but they do make use of these macros, so
they will need export.h to get that definition.  Previously,
they got it via the implicit module.h inclusion.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2011-10-31 19:31:22 -04:00
Paul Gortmaker
da155d5b40 sound: Add module.h to the previously silent sound users
Lots of sound drivers were getting module.h via the implicit presence
of it in <linux/device.h> but we are going to clean that up.  So
fix up those users now.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2011-10-31 19:31:21 -04:00
Paul Gortmaker
65a772172b sound: fix drivers needing module.h not moduleparam.h
The implicit presence of module.h lured several users into
incorrectly thinking that they only needed/used modparam.h
but once we clean up the module.h presence, these will show
up as build failures, so fix 'em now.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2011-10-31 19:31:19 -04:00
Takashi Iwai
6b45214277 ALSA: hda - Fix ADC input-amp handling for Cx20549 codec
It seems that Conexant CX20549 chip handle only a single input-amp even
though the audio-input widget has multiple sources.  This has been never
clear, and I implemented in the current way based on the debug information
I got at the early time -- the device reacts individual input-amp values
for different sources.  This is true for another Conexant codec, but it's
not applied to CX20549 actually.

This patch changes the auto-parser code to handle a single input-amp
per audio-in widget for CX20549.  After applying this, you'll see only a
single "Capture" volume control instead of separate "Mic" or "Line"
captures when the device is set up to use a single ADC.

We haven't tested 20551 and 20561 codecs yet.  If these show the similar
behavior like 20549, they need to set spec->single_adc_amp=1, too.

Cc: <stable@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-10-27 16:58:11 +02:00
Takashi Iwai
254f296840 ALSA: hda - Keep EAPD turned on for old Conexant chips
In the old Conexant chips (5045, 5047, 5051 and 5066), a single EAPD
may handle both headphone and speaker outputs while it's assigned only
to one of them.  Turning off dynamically leads to the unexpected silent
output in such a configuration with the auto-mute function.

Since it's difficult to know how the EAPD is handled in the actual h/w
implementation, better to keep EAPD on while running for such codecs.

Cc: <stable@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-10-27 16:58:10 +02:00
Takashi Iwai
527e4d73af ALSA: hda/realtek - Fix missing volume controls with ALC260
ALC260 has multiple mixer widgets connected to the shared DAC, but the
driver currently doesn't check this possibility and ignores when the DAC
is shared with others.  This resulted in the silent output from some
routes because of lack of the amp setup.

This patch adds the workaround for it by checking the route even with the
shared DAC, but also checking the conflict with the existing control for
the very same widget NID.

Reference: https://bugzilla.novell.com/show_bug.cgi?id=726812

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-10-27 16:58:00 +02:00
Takashi Iwai
5cdf745eba ALSA: hda - Fix pin-config for ASUS W90V
The association numbers of surround/CLFE speaker pins aren't correctly
mapped by the auto-parser.  This patch fixes the CLFE speaker pin to the
right assoc value (from 3 to 1).

Tested-by: Nika Topolchanskaya <nanodesuu@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-10-26 23:05:46 +02:00
Takashi Iwai
8fa7ab48ac ALSA: hda - Fix surround/CLFE headphone and speaker pins order
When 5.1 or more headphone or speaker pins are provided, the parser still
takes as is without fixing the order of channel mapping, which leads in
the unexpected strange channel order by surround outputs.

This patch fixes the issue by applying the same fix-up not only to
line_out_pins[] but also hp_pins[] and speaker_pins[].

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-10-26 16:26:18 +02:00
David Henningsson
cc667a72d4 ALSA: HDA: Add new revision for ALC662
The revision 0x100300 was found for ALC662. It seems to work well
with patch_alc662.

Cc: stable@kernel.org
BugLink: http://bugs.launchpad.net/bugs/877373
Tested-by: Shengyao Xue <Shengyao.xue@canonical.com>
Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Acked-by: Kailang Yang <kailang@realtek.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-10-24 13:23:04 +02:00
Takashi Iwai
716eef032c ALSA: hda/realtek - Fix DAC assignments of multiple speakers
When a device has multiple speakers and still has the auto-mute support,
the driver copies line_outs[] to speaker_outs[].  And then it tries to
assign DACs for both.  This ended up with the assignment only to the
primary DAC to all speakers.

This patch fixes the situation by checking the duplicated LO/SPK case
appropriately.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-10-21 15:07:42 +02:00
Takashi Iwai
c146623884 Merge branch 'fix/hda' into topic/hda 2011-10-19 17:20:08 +02:00
Daniel Suchy
ca201c0962 ALSA: HDA: conexant support for Lenovo T520/W520
This is patch for Conexant codec of Intel HDA driver, adding new quirk
for Lenovo Thinkpad T520 and W520. Conexant autodetection works fine for
T520 (similar subsystem ID is used also in W520 model) and detects more
mixer features compared to generic (fallback) Lenovo quirk with
hardcoded options in Conexant codec.

Patch was activelly tested with Linux 3.0.4, 3.0.6 and 3.0.7 without any
problems.

Signed-off-by: Daniel Suchy <danny@danysek.cz>
Cc: <stable@kernel.org> [3.0+]
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-10-18 11:09:44 +02:00
Takashi Iwai
051a8cb655 ALSA: hda - Add position_fix quirk for Dell Inspiron 1010
The previous fix for the position-buffer check gives yet another
regression on a Dell laptop.  The safest fix right now is to add a
static quirk for this device (and better to apply it for stable
kernels too).

Reported-by: Éric Piel <Eric.Piel@tremplin-utc.net>
Cc: <stable@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-10-18 10:44:05 +02:00
Takashi Iwai
1bb7e43e22 ALSA: hda/realtek - Cache COEF 0 value
The COEF #0 value represents a sort of device id, so it's supposedly
constant while operation.  Better to use the cached value instead of
reading it at each time from the performance POV.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-10-17 23:39:33 +02:00
Takashi Iwai
e16fb6d140 ALSA: hda/realtek - Clean up codec renames
Use a static table for detecting the codec renames.
Also clean up the error paths in each patch_*() function.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-10-17 23:39:32 +02:00
Takashi Iwai
84db9150b6 ALSA: hda/realtek - Use alc_codec_rename()
Replaced with alc_codec_rename() in all possible places.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-10-17 23:39:31 +02:00
Kailang Yang
801f49d3b8 ALSA: hda - ALC888S-VC remark to ALC886
Signed-off-by: Kailang Yang <kailang@realtek.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-10-17 23:39:12 +02:00
Takashi Iwai
20ca0c350d ALSA: hda/realtek - Check the error from alc_codec_rename()
Should be a rare case, but...

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-10-17 16:00:35 +02:00
David Henningsson
636030e90e ALSA: HDA: Fixup Realtek headphone pin initialization
This typo caused headphone pins not to be initialized correctly.

BugLink: https://bugs.launchpad.net/bugs/871582
Reported-by: Effenberg
Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-10-13 08:06:01 +02:00
Charles Chin
6c5c04e509 ALSA: hda - Remove bad code for IDT 92HD83 family patch
The purpose of this patch is to remove a section of "bad" code that
assigns the last DAC to ports E or F in order to support notebooks
with docking in earlier days, around ALSA 1.0.19 - 21.  This is not
necessary now and actually breaks some configurations that use these
ports as other devices.  This have been tested on several different
configurations to make sure that it is working for different combinations.

Signed-off-by: Charles Chin <Charles.Chin@idt.com>
Cc: <stable@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-10-13 08:05:30 +02:00
Takashi Iwai
d5cf991198 ALSA: hda - Distinguish each substream for better sticky assignment
The commit ef18beded8 introduced a
mechanism to assign the previously used slot for the next reopen of a
PCM stream.  But the PCM device number isn't always unique (it may
have multiple substreams), and also the code doesn't check the stream
direction, thus both playback and capture streams share the same
device number.

For avoiding this conflict, make a unique key for each substream and
store/check this value at reopening.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-10-06 10:11:11 +02:00
Takashi Iwai
97999e28c7 Merge branch 'fix/hda' into topic/hda 2011-10-06 10:04:30 +02:00
Takashi Iwai
06503670af ALSA: hda/realtek - Choose more cleverly the primary outputs
When the speaker outputs are more than the headphone outputs, it implies
that the system has surround speakers while the headphones are only for
monitoring the front.  In such a case, it's better to put speakers as
the primary outputs so that the driver can build up and keep the
surround setup.  Otherwise the system will pick up the headphone as
primary, and offers less channels than the speakers do support.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-10-06 08:30:45 +02:00
Takashi Iwai
f71ff0d713 ALSA: hda - Moved snd_print_pcm_rates() back into hda_proc.c
Since hda_proc.c is now the only user of snd_print_pcm_rates(), better to
put it back locally to hda_proc.c and revert to the old style.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-10-06 08:21:15 +02:00
Pierre-Louis Bossart
af65cbf296 ALSA: hdmi: fix printout of SAD sampling rates
SAD sampling rate information reported in
/proc/asound/cardX/eldX is incorrect due to a mismatch
between HDA and HDMI frequencies. Add new routine to provide
relevant values.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-10-06 08:08:53 +02:00
David Henningsson
7c2f8e4009 ALSA: jack - Add "Line In" input jack constants
Similar to Line Out, these constants form the base for future
patches enabling input jack reporting for Line in jacks.

Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-10-05 17:22:04 +02:00
David Henningsson
48718eab5a ALSA: HDA: Fix DAC assignment for secondary headphone on Sigmatel/IDT
If we run out of DACs when trying to assign a DAC to a secondary
headphone, prefer the DAC of the first headphone to the primary
(usually line out) DAC.

BugLink: http://bugs.launchpad.net/bugs/845275
Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-10-05 12:56:40 +02:00
David Henningsson
eb335a40ca ALSA: HDA: Fix naming of input jacks for IDT parser
The Sigmatel/IDT parser should have the same naming convention
for input jacks as the other codecs have.

BugLink: http://bugs.launchpad.net/bugs/859704
Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-10-03 17:25:38 +02:00
Pierre-Louis Bossart
14bc52b8fe ALSA: hda/hdmi: expose ELD control
Applications may want to read ELD information to
understand what codecs are supported on the HDMI
receiver and handle the a-v delay for better lip-sync.

ELD information is exposed in a device-specific
IFACE_PCM kcontrol. Tested both with amixer and
PulseAudio; with a corresponding patch passthrough modes
are enabled automagically.

ELD control size is set to zero in case of errors or
wrong configurations. No notifications are implemented
for now, it is expected that jack detection is used to
reconfigure the audio outputs.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-10-03 15:48:12 +02:00