Commit Graph

84 Commits

Author SHA1 Message Date
Takashi Iwai
498dab3aa7 ALSA: hda - Allow 3/5/7 channel map for HDMI/DP
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-09-10 16:08:40 +02:00
Takashi Iwai
53775b0d0c ALSA: hda - Fix channel maps for Nvidia 7x 8ch HDMI codecs
Some old Nvidia HDMI codecs with 8ch support only 2/8 or
2/6/8 channels and with the fixed CLFE-first map.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-09-06 18:08:30 +02:00
Takashi Iwai
d45e6889ee ALSA: hda - Provide the proper channel mapping for generic HDMI driver
... instead of the standard fixed channel maps.
The generic HDMI is based on the audio infoframe, and its configuration
can be selected via CA bits.  Thus we need a translation between the
CA index and the verbose channel map list.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-09-06 18:08:26 +02:00
Takashi Iwai
1a6003b525 ALSA: hda - Move non-PCM check to per_pin in patch_hdmi.c
Recently the check for non-PCM stream state was added to the generic
HDMI driver code.  But this check should be done rather to each pin
instead of each converter.  Otherwise when a different converter is
assigned at the next open, the audio infoframe can be inconsistent
with the setup using the previous converter.

For fixing this issue, this patch moves the state of the current
non-PCM status from per_cvt to per_pin.  (In addition an unused
argument cvt_nid is stripped from hdmi_setup_channel_mapping())

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-09-06 17:59:19 +02:00
Wang Xingchao
2d7e887cbb ALSA: HDMI - Setup channel mapping for non_pcm audio
For HBR stream test, use straight channel mapping way.
when switched back to "speaker-test -c8", even the audio
infoframe is up-to-date, there should be correct channel mapping setup.

Signed-off-by: Wang Xingchao <xingchao.wang@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-09-06 08:50:35 +02:00
Wang Xingchao
433968da4d ALSA: HDMI - Enable HBR feature on Intel chips
HDMI channel remapping apparently effects HBR packets on Intel's chips.
For compressed non-PCM audio, use "straight-through" channel mapping.
For uncompressed multi-channel pcm audio, use normal channel mapping.

Signed-off-by: Wang Xingchao <xingchao.wang@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-09-06 08:50:33 +02:00
Wang Xingchao
72357c78b7 ALSA: HDMI - Fix channel_allocation array wrong order
The array channel_allocations[] is an ordered list, add function to get
correct order by ca_index.

Signed-off-by: Wang Xingchao <xingchao.wang@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-09-06 08:50:31 +02:00
Takashi Iwai
83012a7ccb ALSA: hda - Clean up CONFIG_SND_HDA_POWER_SAVE
CONFIG_SND_HDA_POWER_SAVE is no longer an experimental feature and its
behavior can be well controlled via the default value and module
parameter.  Let's just replace it with the standard CONFIG_PM.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-08-30 07:50:13 -07:00
Takashi Iwai
8a5354140a ALSA: hda - Call snd_hda_jack_report_sync() generically in hda_codec.c
Instead of calling the jack sync in the init callback of each codec,
call it generically at initialization and resume.  By calling it at
the last of resume sequence, a possible race between the jack sync and
the unsol event enablement in the current code will be closed, too.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-08-22 16:48:17 +02:00
Takashi Iwai
8dfaa57391 ALSA: hda - Fix regression of HDMI codec probing
The commit c4bfe94a causes a regression on some codecs at probing.
Since this was just a workaround to shut up a kernel warning, it'd be
better to revert and fix properly.  So we ended up with re-adding the
cleanup callback.

Tested-and-reported-by: Matt Horan <matt@matthoran.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-08-06 14:52:44 +02:00
Takashi Iwai
c4bfe94a8b ALSA: hda - Fix WARNING from HDMI/DP parser
The recent fix to converter detaching timing in patch_hdmi.c
leads to a kernel WARNING due to a sanity check when the debug
option is set.  Add a workaround by setting a dummy hinfo->nid.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-07-27 18:29:58 +02:00
Takashi Iwai
f2ad24fa57 ALSA: hda - Detach from converter at closing in patch_hdmi.c
The generic HDMI code detaches the converter from the stream when
unused, but it must be done rather in the close callback instead of
the cleanup callback.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-07-26 18:08:14 +02:00
Dylan Reid
9e76e6d031 ALSA: hda - Turn on PIN_OUT from hdmi playback prepare.
Turn on the pin widget's PIN_OUT bit from playback prepare. The pin is
enabled in open, but is disabled in hdmi_init_pin which is called during
system resume.  This causes a system suspend/resume during playback to
mute HDMI/DP. Enabling the pin in prepare instead of open allows calling
snd_pcm_prepare after a system resume to restore audio.

Signed-off-by: Dylan Reid <dgreid@chromium.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-07-20 07:47:01 +02:00
Aaron Plattner
7ae48b56f8 ALSA: hda - Add new GPU codec ID to snd-hda
Vendor ID 0x10de0051 is used by a yet-to-be-named GPU chip.

Signed-off-by: Aaron Plattner <aplattner@nvidia.com>
Acked-by: Andy Ritger <aritger@nvidia.com>
Reviewed-by: Daniel Dadap <ddadap@nvidia.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-07-17 07:30:44 +02:00
Wang Xingchao
1c76684d27 ALSA: hda - add Haswell HDMI codec id
0x80862807 is HDMI id for Haswell HDA.

Signed-off-by: Wang Xingchao <xingchao.wang@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-07-16 16:03:11 +02:00
Takashi Iwai
e9ea8e8f22 ALSA: hda - Correct info print in HDMI non-intrinsic unsol event
In the recent code, the value shown there is a tag number, and it's no
longer same as the pin nid.  Correct the message to avoid confusion.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-06-21 11:42:23 +02:00
Takashi Iwai
9dd8cf125d ALSA: hda - Don't rely on event tag for simple_hdmi
VIA codecs seem not returning the event tag in the unsolicited events,
thus the current code relying on the tag value doesn't work.
Since simple_hdmi stuff has only a single pin, we can use simply
snd_hda_jack_set_dirty_all() to activate the pin-detection
independently from the tag value.

Tested-by: Annie Liu <AnnieLiu@viatech.com.cn>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-06-21 11:39:45 +02:00
Takashi Iwai
8ceb332df4 ALSA: hda - Remove loop from simple_hdmi*()
The simple_hdmi stuff is designed only for a single pin and a single
converter (thus a single PCM stream), and no need for loops.
Let's flatten the code.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-06-21 08:23:27 +02:00
Takashi Iwai
8b8d654b55 ALSA: hda - Move one-time init codes from generic_hdmi_init()
The codes to initialize work struct or create a proc interface should
be called only once and never although it's called many times through
the init callback.  Move that stuff into patch_generic_hdmi() so that
it's called only once.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-06-20 16:32:22 +02:00
Takashi Iwai
ccfcf7d151 ALSA: hda - Add missing snd_hda_jack_detect_enable() for simple_hdmi*()
Reported-by: Annie Liu <annieliu@viatech.com.cn>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-06-20 09:30:42 +02:00
Takashi Iwai
21cd683d31 ALSA: hda - Fix the pin nid assignment in patch_hdmi.c
This fixes the regression introduced by the commit d0b1252d for
refactoring simple_hdmi*().  The pin NID wasn't assigned correctly.

Reported-by: Annie Liu <annieliu@viatech.com.cn>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-06-20 09:21:45 +02:00
Takashi Iwai
250e41ac9f ALSA: hda - Enable unsol event for ATI and Nvidia HDMI codecs too
ATI and Nvidia HDMI codecs have also the pin-detection capability,
so let's enable the jack-detecion for them, too.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-06-15 14:42:06 +02:00
Takashi Iwai
ceaa86ba2e ALSA: hda - Remove invalid init verbs for Nvidia 2ch codecs
Nvidia 2ch codecs have no NIDs greather than 0x05.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-06-15 14:41:59 +02:00
Takashi Iwai
d0b1252dd1 ALSA: hda - Use common codes for ATI, Nvidia and VIA simple codecs
The code refactoring using the same helper functions for sharing the
codes among ATI, Nvidia and VIA simple_hdmi* stuff.  Except for that
spec->pcm_playback is no longer pointer, the functionality doesn't
change.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-06-15 14:36:20 +02:00
Takashi Iwai
4f0110ced1 ALSA: hda - Merge ATI/VIA HDMI simple init functions
Just a minor code cleanup to use the same function for both AMD and VIA
simple_hdmi*().

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-06-15 12:53:39 +02:00
Takashi Iwai
4b6ace9e71 ALSA: hda - Add the support for VIA HDMI pin detection
This patch adds the hotplug unsol event handling to simple_hdmi*().
It works on VIA VX900.  If AMD or Nvidia chips support the
pin-detection similarly, it can be added easily, too.

Reported-by: Annie Liu <annieliu@viatech.com.cn>
Tested-by: Annie Liu <annieliu@viatech.com.cn>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-06-15 11:53:32 +02:00
Annie Liu
3de5ff8877 ALSA: hda - add support for HD-Audio CODECes of VIA HDMI GFX Cards
This is patch supporting the CODECes of HD-Audio function of VIA GFX
cards which support HDMI.
For CODECes 0x9f80/0x9f81, which belong to VX900, since the hardware
is not fully compliant to HD-Audio 1.3, simple_i*() is adopted
temporarily.

Signed-off-by: Annie Liu <annieliu@viatech.com.cn>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-06-11 12:47:31 +02:00
Takashi Iwai
e3245cddcf ALSA: hda - Protect SPDIF-related stuff via spdif_mutex
Add the missing mutex protection or move into the protected part for
SPDIF access codes for codecs.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-05-10 14:56:15 +02:00
Fengguang Wu
fae3d88a5c ALSA: hda - hide HDMI/ELD printks unless snd.debug=2
Also remove two warnings when CONFIG_SND_DEBUG is not set:

sound/pci/hda/patch_hdmi.c: In function ‘hdmi_intrinsic_event’:
sound/pci/hda/patch_hdmi.c:761:6: warning: unused variable ‘eldv’ [-Wunused-variable]
sound/pci/hda/patch_hdmi.c:760:6: warning: unused variable ‘pd’ [-Wunused-variable]

Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-04-10 14:53:55 +02:00
Wu Fengguang
6edc59e602 ALSA: hda - add id for Atom Cedar Trail HDMI codec
[the order sorted by tiwai]

Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-02-23 09:50:10 +01:00
Takashi Iwai
82b1d73f1f ALSA: hda - Fix left-over merge issues in patch_hdmi.c
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-12-20 15:54:33 +01:00
Takashi Iwai
78c058df6a Merge branch 'test/hda-jack' into topic/hda
Conflicts:
	sound/pci/hda/patch_hdmi.c
	sound/pci/hda/patch_via.c
2011-12-20 15:42:57 +01:00
Takashi Iwai
31ef225793 ALSA: hda - Integrate input-jack stuff into kctl-jack
Instead of managing input-jack stuff separately, call all stuff inside
the kctl-jack creation, deletion and report.  The caller no longer needs
to care about input-jack.

The better integration between input-jack and kctl-jack should be done
in the upper layer in near future, but for now, it's implemented locally
for more tests.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-12-01 17:47:54 +01:00
Takashi Iwai
a4567cb389 ALSA: hda - Increase the max number of coverters/pins in patch_hdmi.c
The new hardware tends to have more and more.  As a temporary fix, just
increase the number for now.

For a long-term solution, we should assign the cvts/pins dynamically.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-11-26 10:19:48 +01:00
Wu Fengguang
c6e8453e75 ALSA: hda - repoll ELD content for multiple times
Improve the one-shot ELD repoll to up to 6 retries.

Up to now the 300ms looks sufficient for the test boxes. However
I'm a bit worried about how well it can fit the wider user base.

Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-11-22 11:35:58 +01:00
Takashi Iwai
aad37dbd56 ALSA: hda - Merge input-jack helpers to hda_jack.c
We can use the very same table in hda_jack.c for managing the list for
input-jack elements, too.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-11-16 11:14:04 +01:00
Takashi Iwai
3a93897ea3 ALSA: hda - Manage unsol tags in hda_jack.c
Manage the tags assigned for unsolicited events dynamically together
with the jack-detection routines.  Basically this is almost same as what
we've done in patch_sigmatel.c.  Assign the new tag number for each new
unsol event, associate with the given NID and the action type, etc.

With this change, now all pins looked over in snd_hda_jack_add_kctls()
are actually enabled for detection now even if the pins aren't used for
jack-retasking by the driver.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-11-16 11:14:03 +01:00
Takashi Iwai
01a61e12b4 ALSA: hda - Create jack-detection kcontrols
Create kcontrols for pin jack-detections, which work similarly like
jack-input layer.  Each control will notify when the jack is plugged or
unplugged, and also user can read the value at any time via the normal
control API.

The control elements are created with iface=CARD, so that they won't
appear in the mixer apps.

So far, only the pins that enabled the jack-detection are registered.
For covering all pins, the transition of the common unsol-tag handling
would be needed.  Stay tuned.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-11-16 11:12:17 +01:00
Takashi Iwai
1835a0f9a2 ALSA: hda - Cache the jack-detection value
Introduce a table containing the pins and their jack-detection states
for avoiding the unnecessary verbs to check the pin status at each time.

When the unsol event is enabled via snd_hda_jack_detect_enable(), it
automatically adds the given NID to the table.  Then the driver supposes
that the codec driver will set the dirty flag appropariately when an
unsolicited event is invoked for that pin.

The behavior for reading other pins that aren't registered in the table
doesn't change.  Only the pins assigned to the table are cached, so far.

In near futre, this table can be extended to use the central place for
the unsolicited events of all pins, etc, and eventually include the
jack-detect kcontrols that replace the current input-jack stuff.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-11-16 11:11:15 +01:00
Wu Fengguang
2d1b439bdb ALSA: hda - move eld->spk_alloc fixup to hdmi_update_eld()
It looks more natural and saves two lines of code.

Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-11-16 10:44:58 +01:00
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
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
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
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
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
David Henningsson
0b6c49b59f ALSA: hda: hdmi: Hint matching between input devices and pcm devices
Since modern HDMI cards often have more than one output pin and thus
input device, we need to know which one has actually been plugged in.

This patch adds a name hint that indicates which PCM device is connected
to which pin.

Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-09-21 10:31:00 +02:00
Stephen Warren
384a48d715 ALSA: hda: HDMI: Support codecs with fewer cvts than pins
The general concept of this change is to create a PCM device for each
pin widget instead of each converter widget. Whenever a PCM is opened,
a converter is dynamically selected to drive that pin based on those
available for muxing into the pin.

The one thing this model doesn't support is a single PCM/converter
sending audio to multiple pin widgets at once.

Note that this means that a struct hda_pcm_stream's nid variable is
set to 0 except between a stream's open and cleanup calls. The dynamic
de-assignment of converters to PCMs occurs within cleanup, not close,
in order for it to co-incide with when controller stream IDs are
cleaned up from converters.

While the PCM for a pin is not open, the pin is disabled (its widget
control's PIN_OUT bit is cleared) so that if the currently routed
converter is used to drive a different PCM/pin, that audio does not
leak out over a disabled pin.

We use the recently added SPDIF virtualization feature in order to
create SPDIF controls for each pin widget instead of each converter
widget, so that state is specific to a PCM.

In order to support this, a number of more mechanical changes are made:

* s/nid/pin_nid/ or s/nid/cvt_nid/ in many places in order to make it
  clear exactly what the code is dealing with.

* We now have per_pin and per_cvt arrays in hdmi_spec to store relevant
  data. In particular, we store a converter's capabilities in the per_cvt
  entry, rather than relying on a combination of codec_pcm_pars and
  the struct hda_pcm_stream.

* ELD-related workarounds were removed from hdmi_channel_allocation
  into hdmi_instrinsic in order to simplifiy infoframe calculations and
  remove HW dependencies.

* Various functions only apply to a single pin, since there is now
  only 1 pin per PCM. For example, hdmi_setup_infoframe,
  hdmi_setup_stream.

* hdmi_add_pin and hdmi_add_cvt are more oriented at pure codec parsing
  and data retrieval, rather than determining which pins/converters
  are to be used for creating PCMs.

This is quite a large change; it may be appropriate to simply read the
result of the patch rather than the diffs. Some small parts of the change
might be separable into different patches, but I think the bulk of the
change will probably always be one large patch. Hopefully the change
isn't too opaque!

This has been tested on:

* NVIDIA GeForce 400 series discrete graphics card. This model has the
  classical 1:1:1 codec:converter:pcm widget model. Tested stereo PCM
  audio to a PC monitor that supports audio.

* NVIDIA GeForce 520 discrete graphics card. This model is the new
  1 codec n converters m pins m>n model. Tested stereo PCM audio to a
  PC monitor that supports audio.

* NVIDIA GeForce 400 series laptop graphics chip. This model has the
  classical 1:1:1 codec:converter:pcm widget model. Tested stereo PCM,
  multi-channel PCM, and AC3 pass-through to an AV receiver.

* Intel Ibex Peak laptop. This model is the new 1 codec n converters m
  pins m>n model. Tested stereo PCM, multi-channel PCM, and AC3 pass-
  through to an AV receiver.

Note that I'm not familiar at all with AC3 pass-through. Hence, I may
not have covered all possible mechanisms that are applicable here. I do
know that my receiver definitely received AC3, not decoded PCM. I tested
with mplayer's "-afm hwac3" and/or "-af lavcac3enc" options, and alsa a
WAV file that I believe has AC3 content rather than PCM.

I also tested:
* Play a stream
* Mute while playing
* Stop stream
* Play some other streams to re-assign the converter to a different
  pin, PCM, set of SPDIF controls, ... hence hopefully triggering
  cleanup for the original PCM.
* Unmute original stream while not playing
* Play a stream on the original pin/PCM.

This was to test SPDIF control virtualization.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-06-06 12:58:14 +02:00
Stephen Warren
2def8172c6 ALSA: hda: hdmi_eld_update_pcm_info: update a stream in place
A future change won't store an entire hda_pcm_stream just to represent
the capabilities of a codec; a custom data-structure will be used. To
ease that transition, modify hdmi_eld_update_pcm_info to expect the
hda_pcm_stream to be pre-initialized with the codec's capabilities, and
to update those capabilities in-place based on the ELD.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-06-06 12:58:09 +02:00
Stephen Warren
3aaf898025 ALSA: hda: Separate generic and non-generic implementations
A future change will significantly rework the generic implementation
in order to support codecs with a different number of pins and
converters. Isolate the more custom codec variants from this change by
duplicating the small portions of generic code they share. This
simplifies the later rework of that previously shared code, since we
don't have to consider the more custom codecs, and also prevents
support for those codecs from regressing.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-06-06 12:58:05 +02:00