The codec read errors in snd_hda_get_connections() are ignored so far,
and it causes a problem like the bug in the commit
    9d30937a
    ALSA: hda_intel: more strict alc880_parse_auto_config dig_nid checking

Better to check errors in the function and returns a proper error code
rather than passing bogus NID values.
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

When FLOAT PCM format is available but together with other linear
PCM formats, don't override maxbps value.  For FLOAT format, it's always
32, thus it can be better checked in snd_hda_calc_stream_format().
Otherwise the maxbps 32 might be used wrongly even if the linear PCM
doesn't support it.
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

Check whether formats and rates don't result in zero due to the
restriction of SPDIF sharing.  If any of them can be zero, disable
the SPDIF sharing mode instead.  Otherwise it will lead to a PCM
configuration error.
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

So far, the FLOAT PCM format is used only exclusivley set.  But
this can be a combination with other formats.

This patch changes the parser to allow the FLOAT format in addition
to other PCM formats.
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

The codec setup call via snd_hda_codec_configure() isn't necessarily
called in snd_hda_codec_new().  For the later added feature, it's better
to change the code flow like:
 - create all codec instances
 - configure each codec
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

The codec->modelname field is allocated twice in snd_hda_codec_new().
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

The reset of a BUS controller during operations is somehow risky and
shouldn't be done inevitably for devices that have apparently no such
codec-communication problems.

This patch adds the check of the hardware and limits the bus-reset
capability.
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

Some machines machine cause a severe CORB/RIRB stall in certain
weird conditions, such as PA access at the start up together with
fglrx driver.  This seems unable to be recovered without the controller
reset.

This patch allows the bus controller reset at critical errors so
that the communication gets recovered again.
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

This patch adds a debug mode to make the codec communication
synchronous.  Define SND_HDA_SUPPORT_SYNC_WRITE in hda_codec.c,
and the call of snd_hda_codec_write*() will become synchronous,
i.e. wait for the reply from the codec at each time issuing a verb.
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

Split the name string in hda_codec struct to vendor_name and chip_name
strings to be stored directly from the preset name.
Since mostly only the chip name is referred in many patch_*.c, this
results in the reduction of many codes in the end.
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

Check the target power-state before checking EAPD exception to reduce
unneeded verb executions.
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

The current error-recovery scheme for the codec communication errors
doesn't work always well.  Especially falling back to the
single-command mode causes the fatal problem on many systems.

In this patch, the problematic verb is re-issued again after the error
(even with polling mode) instead of the single-cmd mode.  The
single-cmd mode will be used only when specified via the command
option explicitly, mainly just for testing.
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

Cache quries for PCM and STREAM parameters as well as ampcap and
pincap sharing the hash table.  This will reduce the superfluous
access of the same codec verbs.
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

(Re)set function_id only from the value on FG nodes.
The current code overrides the value with the last widget.
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

Check the length to copy via strlen() beforehand to avoid the stack
corruption, or use strlcpy() to be safe in HD-audio codes.
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

Added the support for Creative SB X-Fi boards with UAA (HD-audio) mode.
In the HD-audio mode, no multiple streams are supported by just it
behaves like a normal HD-audio device.
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

Fix the key value generation for get/set amp verbs.  The upper bits of
the parameter have to be combined with the verb value to be unique for
each direction/index of amp access.

This fixes the resume problem on some hardwares like Macbook after
the channel mode is changed.
Tested-by: NJohannes Berg <johannes@sipsolutions.net>
Cc: <stable@kernel.org>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

Replace with the standard function calls to use caches for reading
the widget caps and pin caps.

hda_proc.c is still using the direct verbs to get raw values as
much as possible.
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

Added snd_hda_query_pin_caps() to read and cache pin-cap values
to avoid too frequently issuing the same verbs.
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

This patch does two things:
 Output Intel HDA Function Id in /proc/asound/cardX/codec#X
 Align Vendor/Subsystem/Revision Ids to 8 characters, front-padded with zeros

Before:
 Vendor Id: 0x11d41884
 Subsystem Id: 0x103c281a
 Revision Id: 0x100100

After:
 Function Id: 0x1
 Vendor Id: 0x11d41884
 Subsystem Id: 0x103c281a
 Revision Id: 0x0100100

As report on the Kernel Bugzilla #12888
Signed-off-by: NPascal de Bruijn <pascal@unilogicnetworks.net>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

If ratesp or formatsp values are zero, wrong values are passed to ALSA's
the PCM midlevel code. The bug is showed more later than expected.

Also, clean a bit the code.
Signed-off-by: NJaroslav Kysela <perex@perex.cz>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

Change the power state of each widget before starting the initialization
work so that all verbs are executed properly.

Also, keep power-up during hwdep reconfiguration.
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

Fix snd_hda_add_vmaster() to check the non-zero indices of slave controls.
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

It's false positive, but annoying.
  sound/pci/hda/hda_codec.c: In function ‘get_empty_pcm_device’:
  sound/pci/hda/hda_codec.c:2772: warning: ‘dev’ may be used uninitialized in this function
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

Don't return a fatal error to the driver but continue to probe when
any error occurs at creating PCM streams for each codec.
It's often non-fatal and keeping it would help debugging.
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

Revert the codec probe instead of returning the error to the driver
when any error occurs at creating the control elements.
The control element conflict can be non-fatal in many cases,
especially if it comes from the digital-only codec.
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

Initiailize forgotten fields in snd_hda_codec_reset().
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

Added the pseudo device-locking using card->shutdown flag to avoid
the crash via clear/reconfig during operations.
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

Make user_pin overriding even the driver pincfg, e.g. the static / fixed
pin config table in patch_sigmatel.c.
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

Rename from override_pin and cur_pin with user_pin and driver_pin,
respectively, to be a bit more intuitive.
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

Replace with snd_hda_codec_get_pincfg() in the places where available.
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

Added the generic pincfg cache and save/restore functions.
Also introduced the pin-overriding via hwdep sysfs.
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

Added the helper function snd_hda_multi_out_dig_cleanup() to clean up
the digital outputs with multi setup.  This call is needed in cases
the codec supports multiple digital outputs as slaves.  Otherwise the
slave widgets aren't properly cleaned up.

For a single digital output (e.g. in patch_conexant.c), this call isn't
needed.
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

Detect multiple digital-out pins in snd_hda_parse_pin_defconfig().
The dig_out_pin and dig_out_type fields become arrays.

The codec parser still doesn't use this multiple pins detection, though.
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

Fixed a wrong pin check (a typo) for debug print of digital input pin.
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

Signed-off-by: NTakashi Iwai <tiwai@suse.de>

Some fixes regarding snd-hda-intel workqueue:
- Use create_singlethread_workqueue() instead of create_workqueue()
  as per-CPU work isn't required.
- Allocate workq name string properly
- Renamed the workq name to "hd-audio*" to be more obvious.
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

Add dig_out_type and dig_in_type fields to autocfg struct.
A proper HDA_PCM_TYPE_* value is assigned to these fields according
to the pin-jack location type value.
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

Don't break the loop in snd_hda_codec_build_pcms() even if the item
has no substreams.

It's possible that it's an empty item and the next item containing
the valid substreams (e.g. realtek codecs may create the analog
and alt-analog but no digitl streams).
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

Accept non-SPDIF digital I/O pins as the digital pins.
These are usually corresponding to HDMI I/O.
Signed-off-by: NTakashi Iwai <tiwai@suse.de>