Commit Graph

203 Commits (8fc229a51b0e10f4ceb794e8b99fa0a427a7ba41)

Author SHA1 Message Date
Takashi Iwai 68cb2b5592 ALSA: Convert to new pm_ops for PCI drivers
Straightforward conversion to the new pm_ops from the legacy
suspend/resume ops.

Since we change vx222, vx_core and vxpocket have to be converted,
too.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-07-03 08:23:03 +02:00
Takashi Iwai 09cf03b80c ALSA: hda - Fix possible races of accesses to connection list array
Like the previous fixes for cache hash accesses, a protection over
accesses to the widget connection list array must be provided.
Together with this action, remove snd_hda_get_conn_list() which can be
always race, and replace it with either snd_hda_get_num_conns() or
snd_hda_get_connections() calls.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-05-19 17:25:23 +02:00
Takashi Iwai 128bc4ba8c ALSA: hda - Move BIOS pin-parser code to hda_auto_parser.c
Just code shuffles.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-05-08 18:01:33 +02:00
Takashi Iwai 4740860b53 ALSA: hda - Add snd_hda_get_default_vref() helper function
Add a new helper function to guess the default VREF pin control bits
for mic in.  This can be used to set the pin control value safely
matching with the actual pin capabilities.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-04-20 13:06:53 +02:00
Takashi Iwai cdd03cedc5 ALSA: hda - Introduce snd_hda_set_pin_ctl*() helper functions
For setting the pin-control values more safely to match with the
actual pin capability bits, a copule of new helper functions,
snd_hda_set_pin_ctl() and snd_hda_set_pin_ctl_cache(), are
introduced.  These are simple replacement of the codec verb write with
AC_VERB_SET_PIN_WIDGET but do more sanity checks and filter out
superfluous pin-control bits if they don't fit with the corresponding
pin capabilities.

Some codecs are screwed up or ignore the command when such a wrong bit
is set.  These helpers will avoid such secret errors.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-04-20 12:38:48 +02:00
Takashi Iwai 77e314f722 ALSA: hda/via - Add a few sanity checks
Added sanity checks in a few places not to assume the pins having the
certain amp caps or the input-source being always assigned to a mux.

No actual bugs have been triggered by these, but surely better to be a
bit more robust.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-02-22 12:36:06 +01:00
Takashi Iwai 8d8bbc6f17 ALSA: hda/via - Don't create duplicated boost controls
The driver may create duplicated mic boost controls when there are
multiple mics with the very same type / location, and this leads to
the error at actual kcontrol creation.  It needs to check the validity
of the created control and add a proper index if it's duplicated.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-02-22 12:28:44 +01:00
Takashi Iwai 00bc0ce913 Merge branch 'fix/hda' into topic/hda
The fix for bitmap-overflow in Realtek codec driver is needed for the
further development of the auto-parser with badness evaluation.
2012-02-16 16:43:09 +01:00
Takashi Iwai fc1156c0b0 ALSA: hda - Fix initialization of secondary capture source on VT1705
VT1705 codec has two ADCs where the secondary ADC has no MUX but only
a fixed connection to the mic pin.  This confused the driver and it
tries always overriding the input-source selection by assumption of
the existing MUX for the secondary ADC, resulted in resetting the
input-source at each time PM (including power-saving) occurs.

The fix is simply to check the existence of MUX for secondary ADCs in
the initialization code.

Tested-by: Anisse Astier <anisse@astier.eu>
Cc: <stable@kernel.org> [v3.1+]
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-02-13 15:04:06 +01:00
Takashi Iwai 9322ca5497 ALSA: hda - Add suffix argument to snd_hda_add_vmaster()
In most cases, the slave strings for vmaster are identical between
volumes and switches except for "xxx Volume" and "xxx Switch" suffix.
Now snd_hda_add_vmaster() takes the optional suffix argument so that
each string can be composed with the given suffix, and we can share the
slave name strings in both volume and switch calls nicely.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-02-03 14:28:01 +01:00
Takashi Iwai b5bcc18940 ALSA: hda - Disable dynamic-power control for VIA as default
Since the dynamic pin power-control and the analog low-current mode
may lead to pop-noise, it's safer to set it off as default.

Bugzilla: https://bugzilla.novell.com/show_bug.cgi?id=741128

Cc: <stable@kernel.org> [v3.1+]
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-02-02 10:34:06 +01:00
Takashi Iwai e9d010c2e8 ALSA: hda - Allow analog low-current mode when dynamic power-control is on
VIA codecs have several different power-saving features, and one of
them is the analog low-current mode.  But it turned out that the ALC
mode causes pop-noises at each on/off time on some machines.  As a
quick workaround, disable the ALC when another power-saving feature,
the dynamic pin power-control, is turned off, too, since the dynamic
power-control is already exposed as a mixer enum element so that user
can turn it on/off freely.

Bugzilla: https://bugzilla.novell.com/show_bug.cgi?id=741128

Cc: <stable@kernel.org> [v3.1+]
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-02-02 10:18:09 +01:00
Takashi Iwai 924339239f ALSA: hda - Fix the logic to detect VIA analog low-current mode
The analog low-current mode must be enabled when the no stream is
running but the current detection checks it in a wrong way.

Bugzilla: https://bugzilla.novell.com/show_bug.cgi?id=741128

Cc: <stable@kernel.org> [v3.1+]
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-02-02 10:16:32 +01:00
Takashi Iwai 054d867e03 ALSA: hda - Check power-state before changing in patch_via.c
Instead of always writing AC_VERB_SET_POWER_STATE, check the current
power-state and don't write again if the value is already set.
This may reduce the click noise upon the dynamic power-state change
(e.g. in analog-input mixer).

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-02-02 10:15:16 +01:00
Takashi Iwai 4808d12d1d ALSA: hda - Fix the detection of "Loopback Mixing" control for VIA codecs
Currently the driver checks only the out_mix_path[] for the primary
output route for judging whether to create the loopback-mixing control
or not.  But, there are cases where aamix-routing is available only on
headphone or speaker paths but not on the primary output path.  So, the
driver ignores such cases inappropriately.

This patch fixes the check of the loopback-mixing control by testing
all mix-routing paths.

Cc: <stable@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-01-10 15:16:02 +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 187d333edc ALSA: hda - Fix jack-detection control of VT1708
VT1708 has no support for unsolicited events per jack-plug, the driver
implements the workq for polling the jack-detection.  The mixer element
"Jack Detect" was supposed to control this behavior on/off, but this
doesn't work properly as is now.  The workq is always started and the
HP automute is always enabled.

This patch fixes the jack-detect control behavior by triggering / stopping
the work appropriately at the state change.  Also the work checks the
internal state to continue scheduling or not.

Cc: <stable@kernel.org> [v3.1]
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-11-27 17:56:17 +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
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 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
Takashi Iwai a597310331 ALSA: hda:via - Skip creations of empty PCM streams
If no analog I/O is defined, skip creating the corresponding PCM stream.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-09-28 16:43:36 +02:00
Wang Shaoyan 81c0a78b64 ALSA: hda - Fix a complile warning in patch_via.c
sound/pci/hda/patch_via.c:2087: warning: 'dac' may be used uninitialized in this function

Signed-off-by: Wang Shaoyan <wangshaoyan.pt@taobao.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-08-05 12:51:01 +02:00
Takashi Iwai 2a43952a99 ALSA: hda - Make CONFIG_SND_HDA_POWER_SAVE depending on CONFIG_PM
It makes little sense to enable power-saving without PM.
This removes SND_HDA_NEEDS_RESUME define so that we can use CONFIG_PM
in all places.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-07-26 17:21:18 +02:00
Takashi Iwai a353fbb179 ALSA: hda - Remove a superfluous argument of via_auto_init_output()
"force" argument is always true, so let's strip it off.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-07-21 14:24:25 +02:00
Takashi Iwai 020066d1ec ALSA: hda - Fix indep-HP path (de-)activation for VT1708* codecs
This patch fixes non-working indep-HP control on VT1708* codecs.
The problems are that via_independent_hp_put() wasn't fixed to follow
the recent change of three HP paths, and hp_indep_path didn't contain
the amp nids of mixer elements.

Together with the fixes, a few code clean-ups are done.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-07-21 13:55:10 +02:00
Takashi Iwai 3b607e3d3a ALSA: hda - Switch HP DAC dynamically with indep-HP switch for VIA
This patch changes the behavior of independent-HP enum switch.  Now
instead of returning a busy error, the driver switches dynamically the
stream of the HP (and shared) DACs according to the current mode.
The logic is similar like the dual-mic ADC switch, but a bit more
complicated because of the presence of shared DAC.

Together with the change, a mutex is introduced to protect against the
possible races for the indep-HP mode setting.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-07-18 16:54:40 +02:00
Takashi Iwai 3214b9665c ALSA: hda - Implement dynamic loopback control for VIA codecs
This patch adds the dynamic control of analog-loopback for VIA codecs.

When the loopback is enabled, the inputs from line-ins and mics are
mixed with the front DAC, and sent to the front outputs.  The very same
input is routed to the headhpones and speakers in loopback mode.
However, since the loopback mix can't take other than the front DAC,
there is no longer individual volume controls for headphones and
speakers.  Once when the loopback control is off, these volumes take
effect.

Since the individual volumes are more desired in general use caess, the
loopback mode is set to off as default for now.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-07-18 16:47:33 +02:00
Takashi Iwai 30b4503378 ALSA: hda - Expose secret DAC-AA connection of some VIA codecs
VT1718S and co have a secret connection from DAC to AA-mix, which
doesn't appear in the connection list obtained from the h/w.
Currently the driver fixes the connection index locally at init, but
now we can expose it statically via snd_hda_override_connections()
so that this conection can be checked better by the parser in future.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-07-12 07:45:02 +02:00
Takashi Iwai 9499473463 ALSA: hda - Preserve input pin-ctl bits in HP-automute for VIA codec
For smart51 pins, we need to preserve the input pin-control bits at
auto-mute controls instead of overwriting zero or pin-out-only.
Otherwise the VREF won't be set properly when smart51 is disabled
again.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-07-11 11:36:44 +02:00
Takashi Iwai 6e969d9155 ALSA: hda - Set line-out pin-ctls properly when indep-HP mode changes
When Independent-HP mode is changed for VIA, the driver needs to
re-issue the auto-mute check so that the line-out pins are set properly
without influence of HP pin state.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-07-11 11:28:13 +02:00
Takashi Iwai 21ce0b6527 ALSA: hda - Via Fix speaker-mute checks in VIA driver
When the line-jack is plugged/unplugged, the driver must check also
the headphone jack state in addition to the line-out jack.  Currently
it checks only the line-out state and ignores the headphone.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-07-11 10:33:47 +02:00
Lydia Wang 28dc10a5f1 ALSA: hda - Fix output-path of VT1812 codec
For VT1812, add dac_mixer_idx for initialization.

Signed-off-by: Lydia Wang <lydiawang@viatech.com.cn>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-07-08 12:37:19 +02:00
Takashi Iwai 21d45d2ba9 ALSA: hda - Fix Oops in smart51 parsing in VIA codec
Typical off-by-one thinko.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-07-08 11:35:11 +02:00
Lydia Wang a2a870c827 ALSA: hda - Fix Independent-HP detection on VT2002P/1802/1812 codecs
For VT2002P, VT1802 and VT1812 codecs, to create Independent HP
control.

Signed-off-by: Lydia Wang <lydiawang@viatech.com.cn>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-07-08 08:20:05 +02:00
Lydia Wang 5c9a5615de ALSA: hda - Fix DAC checks for VT2002P/1802/1812 codecs
For VT2002P, VT1802 and VT1812 codecs, there're only two DACs. So smart51
control shouldn't be created.

Signed-off-by: Lydia Wang <lydiawang@viatech.com.cn>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-07-08 08:19:28 +02:00
Lydia Wang d69607b3c3 ALSA: hda - Fix VIA output-path init for VT2002P/1802/1812
For VT2002P, VT1802 and VT1812 codecs, the original activate_output_path()
function can't initialize output and hp path correctly, since mixers connected to
output pin widgets are not considered. So modify the activate_output_path()
function to satisify this kind of codec.

Signed-off-by: Lydia Wang <lydiawang@viatech.com.cn>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-07-08 08:18:29 +02:00
Takashi Iwai bac4b92cf7 ALSA: hda - Don't add aa-mix for VIA surrounds
Since we now route the front DAC via aa-mix widget, adding the aa-mix
to surrounds will result in a mix-up of both front and surround PCM
signals.  For avoiding this, the aa-mix routes have to be disabled
for surround paths.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-07-04 17:37:57 +02:00
Takashi Iwai 18bd2c44b9 ALSA: hda - Create HP-vol control properly for VIA codecs
When the individual DAC is available for the headphone output, the driver
should create the DAC for its volume control.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-07-04 15:55:44 +02:00
Takashi Iwai de6c74f3e3 ALSA: hda - Define some constants in patch_via.c
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-07-04 14:53:30 +02:00
Lydia Wang b89596a160 ALSA: hda - Fix invalid multi-channel amplifiers for VT1718S
For VT1718S, the multi-channel path should be like following:
DAC 0-->Mixer 9(index 5)-->Mixer 0(index 1)-->Front Pin;
DAC 1-->Mixer 1(index 0)-->Surround Pin;
DAC 2-->C/LFE Pin;
DAC 3-->Mixer 2(index 0)-->Side Pin;

But current code built Surround and Side path through index 1 of
Mixer 1 and 2. So Adjusting Surround and Side channel amplifier is
invalid. This patch fixes the issue.

Signed-off-by: Lydia Wang <lydiawang@viatech.com.cn>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-07-04 14:53:25 +02:00
Lydia Wang c4394f5b80 ALSA: hda - Fix issue that front can't output sound for VT1718S
For VT1718S, Mixer 9 doesn't expose the connection to DAC 0. So when
building up a 'PCM Playback' amplifier control, it will fail since
getting DAC 0 index of Mixer 9 returned -1. So I added a dac_mixer_idx
to indicated the actual index of DAC 0 to Mixer 9. Following is the
patch and next mail is another.

Signed-off-by: Lydia Wang <lydiawang@viatech.com.cn>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-07-04 14:33:23 +02:00
Lydia Wang e5e1468140 ALSA: hda - Fix the silent front with independent-HP for VIA codecs
Unmute DAC on front speaker path when Independent HP is enabled.

When to enable Independent HP, the front speaker won't output any sound
for VT1708, VT1708B, VT1708S and VT1702.
I find the via_independent_hp_put() routine will mute DAC 0 path in Mixer 0.
For these codecs, when using Independent HP, there could have two
independent streams, one is from DAC0-->Mixer0-->Front Pin, the other is
from DAC3-->GainSW3-->Side Pin.
So I added a check for DAC-->Mixer path in activate_output_path().

If current path is DAC-->Mixer, no need to mute DAC index in Mixer.
In fact, to change connection of Headphone pin or Mux connected with HP
is enough.

Signed-off-by: Lydia Wang <lydiawang@viatech.com.cn>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-07-01 08:33:06 +02:00
Takashi Iwai 2525050518 ALSA: hda - Re-implementation of VIA Independent-HP sharing with side stream
This patch adds the re-implementation of Independent-HP mode in the
case where the DAC is shared between HP and side-channel streams.
Now the driver tries to parse the output-path using the pre-parsed
side-channel DAC for the independent HP output, too.

When a playback PCM stream is opened with this shared mode, the
Independent-HP mixer switch can't be changed for avoiding the conflict,
thus it returns -EBUSY error.

One remaining unintuitive issue is that the DAC volume is still
controlled as "Side" volume although it's shared by both independent-HP
and side streams.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-06-30 17:24:47 +02:00
Lydia Wang e322a36d39 ALSA: hda - Fix jack-detection on non-VT1708 VIA codecs
Move codec init verb which is only applicatable for VT1708.

I've found the root cause that jack plugged in can't be detected.
The verb in vt1708_init_verbs is used to power down jack detect circuit.
This verb is only applicable to VT1708. vt1708 didn't implement jack
detect function in hardware, so we should shut down this function to
avoid noise. But for other codecs, hardware implement jack detect
function. If sending this verb during initialization, jack detect will
be invalid. So I move this verb from via_parse_auto_config() to
patch_vt1708().

Signed-off-by: Lydia Wang <lydiawang@viatech.com.cn>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-06-29 08:02:46 +02:00
Takashi Iwai 8d087c7600 ALSA: hda - Create snd_hda_get_conn_index() helper function
Create snd_hda_get_conn_index() helper function for obtaining the
connection index of the widget.  Replaced the similar codes used in
several codec-drivers with this common helper.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-06-29 08:01:46 +02:00
Lydia Wang 63f10d2ca7 ALSA: hda - Fix unsol event initializations for VIA codecs
Fix a issue to enable unsolicited response to line-out pins.

Signed-off-by: Lydia Wang <lydiawang@viatech.com.cn>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-06-29 08:01:23 +02:00
Takashi Iwai a86a88eaf6 ALSA: hda - Implement dynamic-ADC switching for VIA codecs
Some VIA codecs like VT1702 provide the input-route only to specific
ADCs such as digital-mic inputs.  These routes aren't covered by the
normal primary ADC, and for now, user had to open the capture stream
assigned to that special ADC manually for using such inputs.

This patch implements a way to switch the current ADC dynamically per
the input-source selection in such a case.  When this workaround is
activated, the driver provides only one capture stream and one input-
source control but with the full possible inputs.  The driver switches
the ADC to be used (or being used) according to the input-source on the
fly.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-06-22 15:23:25 +02:00