Commit Graph

255 Commits

Author SHA1 Message Date
Takashi Iwai
401caff70c ALSA: hda - Kill snd_hda_codec_update_cache()
snd_hda_codec_update_cache() used to serve for a slightly different
purpose from snd_hdac_write_cache(), but now both of them became
identical.

Let's unify and replace with the latter one consistently.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-06-27 11:43:09 +02:00
Takashi Iwai
c647f806b8 ALSA: hda - Allow multiple ADCs for mic mute LED controls
Instead of refusing, allow the configuration with the multiple ADCs
(thus multiple capture switches) for enabling the mic mute LED.
This has been done for Sigmatel/IDT codecs, and we treat the OR-ed
values from all capture switches as the boolean condition.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-06-21 13:54:36 +02:00
Takashi Iwai
f567b78851 ALSA: hda - Move mic mute LED helper to the generic parser
Move the code for setting up and controlling the mic mute LED hook
from dell-wmi helper to the generic parser, so that it can be referred
from the multiple driver codes.

No functional change.

Tested-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-06-21 13:51:26 +02:00
Takashi Sakamoto
51cdc8b6a6 ALSA: hda: use position offset macro of TLV data
A series of SNDRV_CTL_TLVO_XXX macro was introduced for position offset
of TLV data. This commit applies a code optimization.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-05-14 17:47:57 +02:00
Takashi Iwai
a9c2dfc852 ALSA: hda - Use a macro for snd_array iteration loops
Introduce a new helper macro, snd_array_for_each(), to iterate for
each snd_array element.  It slightly improves the readability than
lengthy open codes at each place.

Along with it, add const prefix to some obvious places.

There should be no functional changes by this.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-04-24 13:41:53 +02:00
Dan Carpenter
0de7d83562 ALSA: hda - silence uninitialized variable warning in activate_amp_in()
If snd_hda_get_conn_list() fails then "conn" isn't initialized.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-10-13 15:14:44 +02:00
Takashi Iwai
4032da5ffe Merge branch 'topic/hda-fix' into for-next 2017-06-28 16:42:50 +02:00
Hui Wang
a8f20fd25b ALSA: hda - set input_path bitmap to zero after moving it to new place
Recently we met a problem, the codec has valid adcs and input pins,
and they can form valid input paths, but the driver does not build
valid controls for them like "Mic boost", "Capture Volume" and
"Capture Switch".

Through debugging, I found the driver needs to shrink the invalid
adcs and input paths for this machine, so it will move the whole
column bitmap value to the previous column, after moving it, the
driver forgets to set the original column bitmap value to zero, as a
result, the driver will invalidate the path whose index value is the
original colume bitmap value. After executing this function, all
valid input paths are invalidated by a mistake, there are no any
valid input paths, so the driver won't build controls for them.

Fixes: 3a65bcdc57 ("ALSA: hda - Fix inconsistent input_paths after ADC reduction")
Cc: <stable@vger.kernel.org>
Signed-off-by: Hui Wang <hui.wang@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-06-28 07:09:19 +02:00
Takashi Iwai
698f5ee33b ALSA: hda - Move bind-mixer switch codes to generic parser
The generic parser is the only user of the bind-mixer controls, so we
can move the code there and clean up the core helper.

Reviewed-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-05-17 07:13:09 +02:00
Takashi Iwai
7480316c26 ALSA: hda - Allow to enable/disable vmaster build explicitly
Another preliminary patch for the dual-codec support: since the
support of vmaster over multiple codecs is difficult, simply disable
it by a new flag to hda_codec struct.  A new user hint is added as
well for consistency.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-04-10 17:45:27 +02:00
Takashi Iwai
9f3dadb156 ALSA: hda - A new flag to enforce prefix to each pin
This is a preliminary patch for a smooth multi-codec support, and it
introduces a new flag, force_pin_prefix, to struct hda_codec.
This flag is used to force to add the pin location prefix to each
input pin.  For example, when there is only one microphone pin,
usually the auto-parser assigns the string "Mic".  With this flag on,
it'll be like "Front Mic".  Also, the creation of "Master" or "PCM"
playback volume for a single pin is suppressed, too.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=195305
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-04-10 17:44:39 +02:00
Takashi Iwai
cf81d6b583 Merge branch 'for-next' into for-linus
Merged 4.8 changes.
2016-07-25 17:01:14 +02:00
Bob Copeland
81e43960dc ALSA: hda - fix read before array start
UBSAN reports the following warning from accessing path->path[-1]
in set_path_power():

[   16.078040] ================================================================================
[   16.078124] UBSAN: Undefined behaviour in sound/pci/hda/hda_generic.c:3981:17
[   16.078198] index -1 is out of range for type 'hda_nid_t [10]'
[   16.078270] CPU: 2 PID: 1738 Comm: modprobe Not tainted 4.7.0-rc1-wt+ #47
[   16.078274] Hardware name: LENOVO 3443CTO/3443CTO, BIOS G6ET23WW (1.02 ) 08/14/2012
[   16.078278]  ffff8800cb246000 ffff8800cb3638b8 ffffffff815c4fe3 0000000000000032
[   16.078286]  ffff8800cb3638e0 ffffffffffffffff ffff8800cb3638d0 ffffffff8162443d
[   16.078294]  ffffffffa0894200 ffff8800cb363920 ffffffff81624af7 0000000000000292
[   16.078302] Call Trace:
[   16.078311]  [<ffffffff815c4fe3>] dump_stack+0x86/0xd3
[   16.078317]  [<ffffffff8162443d>] ubsan_epilogue+0xd/0x40
[   16.078324]  [<ffffffff81624af7>] __ubsan_handle_out_of_bounds+0x67/0x70
[   16.078335]  [<ffffffffa087665f>] set_path_power+0x1bf/0x230 [snd_hda_codec_generic]
[   16.078344]  [<ffffffffa087880d>] add_pin_power_ctls+0x8d/0xc0 [snd_hda_codec_generic]
[   16.078352]  [<ffffffffa087f190>] ? pin_power_down_callback+0x20/0x20 [snd_hda_codec_generic]
[   16.078360]  [<ffffffffa0878947>] add_all_pin_power_ctls+0x107/0x150 [snd_hda_codec_generic]
[   16.078370]  [<ffffffffa08842b3>] snd_hda_gen_parse_auto_config+0x2d73/0x49e0 [snd_hda_codec_generic]
[   16.078376]  [<ffffffff81173360>] ? trace_hardirqs_on_caller+0x1b0/0x2c0
[   16.078390]  [<ffffffffa089df27>] alc_parse_auto_config+0x147/0x310 [snd_hda_codec_realtek]
[   16.078402]  [<ffffffffa08a332a>] patch_alc269+0x23a/0x560 [snd_hda_codec_realtek]
[   16.078417]  [<ffffffffa0838644>] hda_codec_driver_probe+0xa4/0x1a0 [snd_hda_codec]
[   16.078424]  [<ffffffff817bbac1>] driver_probe_device+0x101/0x380
[   16.078430]  [<ffffffff817bbdf9>] __driver_attach+0xb9/0x100
[   16.078438]  [<ffffffff817bbd40>] ? driver_probe_device+0x380/0x380
[   16.078444]  [<ffffffff817b8d20>] bus_for_each_dev+0x70/0xc0
[   16.078449]  [<ffffffff817bb087>] driver_attach+0x27/0x50
[   16.078454]  [<ffffffff817ba956>] bus_add_driver+0x166/0x2c0
[   16.078460]  [<ffffffffa0369000>] ? 0xffffffffa0369000
[   16.078465]  [<ffffffff817bd13d>] driver_register+0x7d/0x130
[   16.078477]  [<ffffffffa083816f>] __hda_codec_driver_register+0x6f/0x90 [snd_hda_codec]
[   16.078488]  [<ffffffffa036901e>] realtek_driver_init+0x1e/0x1000 [snd_hda_codec_realtek]
[   16.078493]  [<ffffffff8100215e>] do_one_initcall+0x4e/0x1d0
[   16.078499]  [<ffffffff8119f54d>] ? rcu_read_lock_sched_held+0x6d/0x80
[   16.078504]  [<ffffffff813701b1>] ? kmem_cache_alloc_trace+0x391/0x560
[   16.078510]  [<ffffffff812bb314>] ? do_init_module+0x28/0x273
[   16.078515]  [<ffffffff812bb387>] do_init_module+0x9b/0x273
[   16.078522]  [<ffffffff811e3782>] load_module+0x20b2/0x3410
[   16.078527]  [<ffffffff811df140>] ? m_show+0x210/0x210
[   16.078533]  [<ffffffff813b2b26>] ? kernel_read+0x66/0xe0
[   16.078541]  [<ffffffff811e4cfa>] SYSC_finit_module+0xba/0xc0
[   16.078547]  [<ffffffff811e4d1e>] SyS_finit_module+0xe/0x10
[   16.078552]  [<ffffffff81a860fc>] entry_SYSCALL_64_fastpath+0x1f/0xbd
[   16.078556] ================================================================================

Fix by checking path->depth before use.

Signed-off-by: Bob Copeland <me@bobcopeland.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2016-06-26 10:48:53 +02:00
Takashi Iwai
fabc16fe9a ALSA: hda - Turn off loopback mixing as default
So far, we enabled the loopback mixing control as default, as this
behavior made somewhat compatible with the earlier HD-audio drivers
for Realtek & co.  However, it's getting annoying as we've got more
and more bug reports about the noise coming from the loopback route.
Since the loopback mixing is used fairly rarely and often harmful
(e.g. using PA), let's get rid of the default turn-on lines.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2016-06-02 10:42:11 +02:00
Takashi Iwai
a33d595996 Merge branch 'for-linus' into for-next
For taking back the recent change of HDA HDMI fixes for i915 HSW/BDW.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2016-04-26 10:12:46 +02:00
Takashi Iwai
50fd4987c4 ALSA: hda - Don't trust the reported actual power state
We've got a regression report that the recording on Mac with a cirrus
codec doesn't work any longer.  This turned out to be the missing
power up to D0 by power_save_node enablement.

After analyzing the traces, we found out that the culprit is that the
codec advertises the "actual" power state of a few nodes to be D0
while the "target" power state is D3.  This inconsistency is usually
OK, as it implies the power transition.  But in the case of cirrus
codec, this seems to be stuck to D3 while it's not actually D0.

This patch addresses the issue by checking the power state difference
more strictly.  It sends the power-state change verb unless both the
target and the actual power states show the given value.

We may introduce yet another flag indicating the possible broken
hardware power state, but it's anyway safer to set the proper power
state even in a transition (at least it's harmless as long as the
target state is same).  So this simpler change was applied now.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=116171
Cc: <stable@vger.kernel.org> # v4.4+
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2016-04-17 09:39:41 +02:00
Takashi Iwai
4f29efc0ea ALSA: hda - Add missing capture_hook calls for dyn-ADC PCM streams
The calls for capture_hook were missing in dyn_adc_capture_pcm_prepare
and cleanup callbacks.  Luckily there are no users of the capture
hooks with dyn-adc PCM, so far, thus this doesn't change the behavior
of existing devices, but it's a fix for a future usage.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2016-04-12 15:16:24 +02:00
Takashi Iwai
2ebab40eb7 ALSA: hda - Fix bad dereference of jack object
The hda_jack_tbl entries are managed by snd_array for allowing
multiple jacks.  It's good per se, but the problem is that struct
hda_jack_callback keeps the hda_jack_tbl pointer.  Since snd_array
doesn't preserve each pointer at resizing the array, we can't keep the
original pointer but have to deduce the pointer at each time via
snd_array_entry() instead.  Actually, this resulted in the deference
to the wrong pointer on codecs that have many pins such as CS4208.

This patch replaces the pointer to the NID value as the search key.
As an unexpected good side effect, this even simplifies the code, as
only NID is needed in most cases.

Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2016-02-09 12:16:31 +01:00
Takashi Iwai
e7fdd52779 ALSA: hda - Implement loopback control switch for Realtek and other codecs
Many codecs, typically found on Realtek codecs, have the analog
loopback path merged to the secondary input of the middle of the
output paths.  Currently, we don't offer the dynamic switching in such
configuration but let each loopback path mute by itself.

This should work well in theory, but in reality, we often see that
such a dead loopback path causes some background noises even if all
the elements get muted.  Such a problem has been fixed by adding the
quirk accordingly to disable aamix, and it's the right fix, per se.
The only problem is that it's not so trivial to achieve it; user needs
to pass a hint string via patch module option or sysfs.

This patch gives a bit improvement on the situation: it adds "Loopback
Mixing" control element for such codecs like other codecs (e.g. IDT or
VIA codecs) with the individual loopback paths.  User can turn on/off
the loopback path simply via a mixer app.

For keeping the compatibility, the loopback is still enabled on these
codecs.  But user can try to turn it off if experiencing a suspicious
background or click noise on the fly, then build a static fixup later
once after the problem is addressed.

Other than the addition of the loopback enable/disablement control,
there should be no changes.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-12-08 17:00:42 +01:00
Takashi Iwai
c4a58c308a ALSA: hda - Make snd_hda_parse_nid_path() local
An exported function snd_hda_parse_nid_path() is used only inside
hda_generic.c.  Let's make it a static local function for a better
code optimization.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-12-08 11:48:39 +01:00
Takashi Iwai
1e73bf7815 ALSA: hda - Remove unused snd_hda_get_nid_path()
An exported helper function snd_hda_get_nid_path() is nowhere used.
Let's remove it.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-12-08 11:47:31 +01:00
Takashi Iwai
b9a94a9c78 ALSA: hda - convert to hda_device_id
Finally we have a proper infrastructure to generate the modaliases
automatically, let's move to hda_device_id from the legacy
hda_codec_preset that contains basically the same information.

The patch function hook is stored in driver_data field, which is long,
and we need an explicit cast.  Other than that, the conversion is
mostly straightforward.  Each entry is even simplified using a macro,
and the lengthy (and error-prone) manual modaliases got removed.

As a result, we achieved a quite good diet:
 14 files changed, 407 insertions(+), 595 deletions(-)

Reviewed-by: Vinod Koul <vinod.koul@intel.com>
Tested-by: Subhransu S Prusty <subhransu.s.prusty@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-10-20 10:15:20 +02:00
Takashi Iwai
c7cd0ef66a ALSA: hda - Fix path power activation
The widget power-saving code tries to turn up/down the power of each
widget in the I/O paths that are modified at each jack plug/unplug.
The recent report revealed that the power activation leaves some
widgets unpowered after plugging.  This is because
snd_hda_activate_path() turns on path->active flag at the end of the
function while the path power management is done before that.  Then
it's regarded as if nothing is active, and the driver turns off the
power.

The fix is simply to set the flag at the beginning of the function,
before trying to power up.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=102521
Cc: <stable@vger.kernel.org> [v4.1+]
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-08-25 07:59:02 +02:00
Takashi Iwai
9d2b48f730 ALSA: hda - Check all inputs for is_active_nid_for_any()
The is_active_nid_for_any() function in the generic parser is supposed
to check all connections from/to the given widget, but the current
code checks only the first input connection (index = 0).

This patch corrects the code to check all inputs by passing -1 to
index argument.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=102521
Cc: <stable@vger.kernel.org> [v4.1+]
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-08-25 07:59:01 +02:00
Takashi Iwai
d1f15e06b2 ALSA: hda - Fix a wrong busy check in alt PCM open
Currently, the alt PCM open callback returns -EBUSY when an
independent HP is turned off, supposing that it conflicts with the
main PCM.  However, obviously, this check is wrong when the
independent HP itself isn't enabled but the alt PCM was explicitly
created via alc_dac_nid by a codec driver.

Reported-and-tested-by: Kailang Yang <kailang@realtek.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-07-08 09:27:56 +02:00
Takashi Iwai
49fb189725 ALSA: hda - Set stream_pm ops automatically by generic parser
This allows user to test power_save_node feature via sysfs or patch
firmware even on the codecs that don't specify it.  It'll also save a
few lines.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-05-27 08:39:27 +02:00
Takashi Iwai
48f4b3a2ec ALSA: hda - Reduce verbs by node power-saves
The widget (node) power-saves restore the widget states at each
transition from D3 to D0 on each node.  This was added in the commit
[d545a57c5f84:ALSA: hda - Sync node attributes at resume from widget
power saving].  However, the test was rater false-positive; this
wasn't needed for any codecs.

Since the resync may take significant number of additional verbs to be
executed, it's better to reduce it.  Let's disable it for now again.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-05-20 06:49:37 +02:00
Takashi Iwai
3e1b0c4a9d ALSA: hda - Fix click noise at start on Dell XPS13
Dell XPS13 produces a click noise at boot up, and Gabriele spotted out
that it's triggered by the initial pin control of the mic (NID 0x19).
This has to be set to Hi-Z Vref while the driver initializes to Vref
80% as a normal mic.

This patch fixes the generic parser code not to override the target
vref if it has been already set by the driver, and adds a proper
initialization of the target vref for this pin in the Realtek driver
side.

Reported-and-tested-by: Gabriele Mazzotta <gabriele.mzt@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-04-27 10:48:37 +02:00
Takashi Iwai
24fef9022a ALSA: hda/generic - Don't override power_filter when power_save_node is set
Currently the generic parser sets codec->power_filter when
power_save_node flag is set.  But this overrides the existing filter
that has been already set by the codec driver, thus it looses some
features.  Instead, set the default power_filter only when it's not
set yet.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-04-09 10:34:00 +02:00
Takashi Iwai
b6c09b3c7b ALSA: hda/generic - Make snd_hda_gen_path_power_filter() always applicable
Add the check of power_save_node flag at the beginning of the function
so that it skips the rest if the flag isn't set.  In this way, we can
call this function safely no matter whether the widget power-saving is
really used or not.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-04-09 10:33:53 +02:00
Takashi Iwai
d5ac0100a9 ALSA: hda/generic - Fix wrong initial power state for fixed pins
When the widget power-saving is enabled, the first automute hook
invocation checks through the whole pins and it also tries to
synchronize the power state.  However, this results in a wrong state
because it calls unconditionally snd_hda_jack_detect_state().
This patch adds a check of jack detectability before the actual jack
detection call.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-04-09 10:33:44 +02:00
Takashi Iwai
2206dc9492 ALSA: hda/generic - Check power state cap at updating the widget power
The new widget power-saving tries to apply the power change no matter
whether the node has a power cap or not.  It's bad (although most of
codecs chip just ignore it).  Check the capability properly
beforehand.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-04-09 10:33:16 +02:00
Takashi Iwai
d545a57c5f ALSA: hda - Sync node attributes at resume from widget power saving
So far we assumed that the node attributes like amp values remain
during the power state transition of the node itself.  While this is
true for IDT/STAC codecs I've tested, but some other codecs don't seem
behaving in that way.

This patch implements a partial sync mechanism specific to the given
widget node.  Now we've merged the regmap support, and it can be
easily written with regcache_sync_region().

Tested-by: Hui Wang <hui.wang@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-04-04 12:22:52 +02:00
Takashi Iwai
a551d91473 ALSA: hda - Use regmap for command verb caches, too
Like the previous patches, this patch converts also to the regmap, at
this time, the cached verb writes are the target.  But this conversion
needs a bit more caution than before.

- In the old code, we just record any verbs as is, and restore them at
  resume.  For the regmap scheme, this doesn't work, since a few verbs
  like AMP or DIGI_CONVERT are asymmetrical.  Such verbs are converted
  either to the dedicated function (snd_hda_regmap_xxx_amp()) or
  changed to the unified verb.

- Some verbs have to be declared as vendor-specific ones before
  accessing via regmap.

Also, the minor optimization with codec->cached_write flag is dropped
in a few places, as this would confuse the operation.  Further
optimizations will be brought in the later patches, if any.

This conversion ends up with a drop of significant amount of codes,
mostly the helper codes that are no longer used.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-03-23 13:19:41 +01:00
Takashi Iwai
7639a06c23 ALSA: hda - Move a part of hda_codec stuff into hdac_device
Now some codes and functionalities of hda_codec struct are moved to
hdac_device struct.  A few basic attributes like the codec address,
vendor ID number, FG numbers, etc are moved to hdac_device, and they
are accessed like codec->core.addr.  The basic verb exec functions are
moved, too.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-03-23 13:17:17 +01:00
Takashi Iwai
967b1307b6 ALSA: hda - Rename power_mgmt flag with power_save_node
David suggested that the name "power_mgmt" is too ambiguous.  Rename
the flag with a bit clearer one "power_save_node".

Also, add the corresponding description to HD-Audio.txt, too.

Reported-by: David Henningsson <david.henningsson@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-03-20 18:31:18 +01:00
Takashi Iwai
6b275b1400 ALSA: hda - Fix power of pins used for mute LED with vrefs
Some pins are used for controlling the LED with the VREF value.
This patch changes the power behavior of such pins to be constantly
up.  A new state, pin_fixed, is introduced to nid_path to indicate
that the path contains the fixed pin.  This improves also the
readability a bit for other static routes, too.

Then a helper function snd_hda_gen_fix_pin_power() is called from the
codec driver for such fixed pins, and it will create fake paths
containing only these pins with pin_fixed=1 flag.

Reported-by: David Henningsson <david.henningsson@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-03-20 18:30:48 +01:00
Takashi Iwai
5ccf835cc7 ALSA: hda - Adjust power of beep widget and outputs
As the widget PM may turn off the pins, this might lead to the silent
output for beep when no explicit paths are given.  This patch adds
fake output paths for the beep widget so that the output pins are
dynamically powered upon beep on/off.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-03-18 09:23:10 +01:00
Takashi Iwai
e6feb5d085 ALSA: hda - Support advanced power state controls
This patch enables the finer power state control of each widget
depending on the jack plug state and streaming state in addition to
the existing power_down_unused power optimization.  The new feature is
enabled only when codec->power_mgmt flag is set.

Two new flags, pin_enabled and stream_enabled, are introduced in
nid_path struct for marking the two individual power states: the pin
plug/unplug and DAC/ADC stream, respectively.  They can be set
statically in case they are static routes (e.g. some mixer paths),
too.

The power up and down events for each pin are triggered via the
standard hda_jack table.  The call order is hard-coded, relying on the
current implementation of jack event chain (a la FILO/stack order).

One point to be dealt carefully is that DAC/ADC cannot be powered
on/off while streaming.  They are pinned as long as the stream is
running.  For controlling the power of DAC/ADC, a new patch_ops is
added.  The generic parser provides the default callback for that.

As of this patch, only IDT/Sigmatel codec driver enables the flag.
The support on other codecs will follow.

An assumption we made in this code is that the widget state (e.g. amp,
pinctl, connections) remains after the widget power transition (not
about FG power transition).  This is true for IDT codecs, at least.
But if the widget state is lost at widget power transition, we'd need
to implement additional code to sync the cached amp/verbs for the
specific NID.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-03-18 09:22:28 +01:00
Takashi Iwai
fb83b63510 ALSA: hda - Simplify PCM setup overrides
This patch does two things:
- code refactoring with a local helper function,
- allow codec drivers to provide the specific PCM stream info pointers
  only for overriding the non-NULL entries, instead of copying the
  whole.

This simplifies the codec driver side (currently the only user is
alc269's 44kHz fixed rate).

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-03-17 20:57:20 +01:00
Takashi Iwai
2a557a861a Merge branch 'topic/hda-unbind' into for-next 2015-03-16 14:48:20 +01:00
Takashi Iwai
8f88f0256f Merge branch 'topic/hda-bus' into for-next 2015-03-16 14:48:16 +01:00
Takashi Iwai
cc261738ad ALSA: hda - Treat stereo-to-mono mix properly
The commit [ef403edb75: ALSA: hda - Don't access stereo amps for
mono channel widgets] fixed the handling of mono widgets in general,
but it still misses an exceptional case: namely, a mono mixer widget
taking a single stereo input.  In this case, it has stereo volumes
although it's a mono widget, and thus we have to take care of both
left and right input channels, as stated in HD-audio spec ("7.1.3
Widget Interconnection Rules").

This patch covers this missing piece by adding proper checks of stereo
amps in both the generic parser and the proc output codes.

Reported-by: Raymond Yau <superquad.vortex2@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-03-16 14:44:03 +01:00
Takashi Iwai
ef403edb75 ALSA: hda - Don't access stereo amps for mono channel widgets
The current HDA generic parser initializes / modifies the amp values
always in stereo, but this seems causing the problem on ALC3229 codec
that has a few mono channel widgets: namely, these mono widgets react
to actions for both channels equally.

In the driver code, we do care the mono channel and create a control
only for the left channel (as defined in HD-audio spec) for such a
node.  When the control is updated, only the left channel value is
changed.  However, in the resume, the right channel value is also
restored from the initial value we took as stereo, and this overwrites
the left channel value.  This ends up being the silent output as the
right channel has been never touched and remains muted.

This patch covers the places where unconditional stereo amp accesses
are done and converts to the conditional accesses.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=94581
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-03-13 07:37:21 +01:00
Takashi Iwai
bbbc7e8502 ALSA: hda - Allocate hda_pcm objects dynamically
So far, the hda_codec object kept the hda_pcm list in an array, and
the codec driver was expected to assign the array.  However, this
makes the object life cycle management harder, because the assigned
array is freed at the codec driver detach while it might be still
accessed by the opened streams.

In this patch, we allocate each hda_pcm object dynamically and manage
it as a linked list.  Each object has a kref refcount, and both the
codec driver binder and the PCM open/close touches it, so that the
object won't be freed while in use.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-03-03 11:26:24 +01:00
Takashi Iwai
d8a766a16e ALSA: hda - Bind codecs via standard bus
Now we create the standard HD-audio bus (/sys/bus/hdaudio), and bind
the codec driver with the codec device over there.  This is the first
step of the whole transition so that the changes to each codec driver
are kept as minimal as possible.

Each codec driver needs to register hda_codec_driver struct containing
the currently existing preset via the new helper macro
module_hda_codec_driver().  The old hda_codec_preset_list is replaced
with this infrastructure.  The generic parsers (for HDMI and other)
are also included in the preset with the special IDs to bind
uniquely.

In HD-audio core side, the device binding code is split to
hda_bind.c.  It provides the snd_hda_bus_type implementation to match
the codec driver with the given codec vendor ID.  It also manages the
module auto-loading by itself like before: when the matching isn't
found, it tries to probe the corresponding codec modules, and finally
falls back to the generic drivers.  (The special ID mentioned above is
set at this stage.)

The only visible change to outside is that the hdaudio sysfs entry now
appears in /sys/bus/devices, not as a sound class device.

More works to move the suspend/resume and remove ops will be
(hopefully) done in later patches.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-02-23 09:16:06 +01:00
Takashi Iwai
74f14b3683 ALSA: hda - Make add_stereo_mix_input flag tristate
... for distinguishing whether it's explicitly enabled via a user hint
or enabled by a driver as a fallback.  Now the former case corresponds
to HDA_HINT_STEREO_MIX_ENABLE while the latter to
HDA_HINT_STEREO_MIX_AUTO.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-12-15 13:46:08 +01:00
Takashi Iwai
82d04e1088 ALSA: hda - Create capture source ctls when stereo mix input is added
When the stereo mix input is explicitly enabled via a user hint, the
driver should create always a capture source enum ctl and disable the
auto-mic switch.  Otherwise the behavior gets confused.  For doing it,
this patch just sets spec->suppress_auto_mic flag appropriately.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-12-15 13:40:42 +01:00
Takashi Iwai
dda42bd0c3 ALSA: hda - Add kerneldoc comments to hda_generic.c
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-10-30 12:04:50 +01:00
David Henningsson
3abb4f4d0e ALSA: hda - Use "Line Out" name instead of "PCM" when there are other outputs
In case there are speakers or headphones as well, anything that only
covers the line out should not be labelled "PCM". Let's name it
"Line Out" instead for clarity.

Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-10-20 13:38:10 +02:00