Commit Graph

82 Commits

Author SHA1 Message Date
Takashi Iwai 1d260d7b3b ALSA: hda/proc - Fix racy string access for power states
The power states in a proc file are printed in a racy manner on a
single static string buffer.  Fix it by calling snd_iprintf() directly
for each state instead of processing on a temporary buffer.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-08-17 15:12:04 +02:00
Takashi Iwai cc75cdfe1d ALSA: hda/proc - Add const to possible places
Many arrays in hda_proc.c are string arrays that should be covered by
const prefix for increasing the safety and reducing the size.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-08-17 15:11:31 +02:00
Takashi Iwai d2c6b63df5 ALSA: hda - Make some helper functions local
A few helper functions to convert the pin information to strings have
been exported with assumption that they were used by other drivers.
But they are referred only in the proc interface in the end.

Let's make them local so that we can get rid of a few exports.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-08-17 15:10:15 +02:00
Dan Carpenter f4d7703179 ALSA: hda - potential (but unlikely) uninitialized variable
This function is a bit unusual because it accepts negative values as
"conn_len".  It's theoretically possible for both "cache_len" and
"conn_len" to be -ENOSPC and in that case we would oops trying to run
memcmp() on the uninitialized "list" pointer.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-04-17 15:32:17 +02:00
Takashi Iwai 9ba17b4d13 ALSA: hda - Implement uncached version of parameter reads
Sometimes we need the uncached reads, e.g. for refreshing the tree.
This patch provides the helper function for that and uses it for
refreshing widgets, reading subtrees and the whole proc reads.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-03-23 13:19:38 +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 2a557a861a Merge branch 'topic/hda-unbind' into for-next 2015-03-16 14:48:20 +01:00
Takashi Iwai cc261738ad ALSA: hda - Treat stereo-to-mono mix properly
The commit [ef403edb7558: 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 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 6efdd8513f ALSA: hda - Add card field to hda_codec struct
Allow the codec object to have an individual card pointer.  Not only
this simplifies the redirections in many places, also this will allow
us to make each codec assigned to a different card object.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-03-03 11:25:16 +01:00
David Henningsson cd262518a3 ALSA: hda - Add parameter for dumping processing coefficients
Processing coefficients are often a vital part of the codec's configuration,
so dumping them can be important. However, because they are undocumented and
secret, we do not want to enable this for all codecs by default.

Therefore instead add this as a debugging parameter.

I have prepared for codecs that want to enable this by default by the extra
dump_coef bitfield, but unsure if we want to do that as long as the
(unlikely, but still) race remains.

Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-01-29 16:39:13 +01:00
Mengdong Lin 7a624ea562 ALSA: hda - add device list & select info of display pins to codec proc file
If a display codec supports multi-stream transport on the pins, the pin's
device list length and device entries will be exposed to codec proc file.

Signed-off-by: Mengdong Lin <mengdong.lin@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-08-27 12:15:17 +02:00
Wang Xingchao 8b2c7a5c40 ALSA: hda - Add In-driver connection info
Pin's connection list may change dynamically with hot-plug event
on Intel Haswell chip. Users would see connections be "0" in codec#.
when play audio on this pin, software driver choose converter from cache
connections. So add "In-driver connection" info to avoid confuse when
raw connections are different with cache connection.

Signed-off-by: Wang Xingchao <xingchao.wang@linux.intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-06-25 08:13:56 +02:00
Takashi Iwai 4eea30914f ALSA: hda - Remove limit of widget connections
Currently we set the max number of connections to be 32, but there
seems codec that gives longer connection lists like AD1988, and we see
errors in proc output and else.  (Though, in the case of AD1988, it's
a list of all codecs connected to a single vendor widget, so this must
be something fishy, but it's still valid from the h/w design POV.)

This patch tries to remove this restriction.  For efficiency, we still
use the fixed size array in the parser, but takes a dynamic array when
the size is reported to be greater than that.

Now the fixed array size is found only in patch_hdmi.c, but it should
be fine, as the codec itself can't support so many pins.

Reported-by: Raymond Yau <superquad.vortex2@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-02-07 20:01:08 +01:00
Takashi Iwai 2cf215bfaa Merge branch 'topic/hda-gen-parser' into for-next
This is a merge of really big changes: the generic parser is heavily
enhanced for handling all cases, based on the former Realtek codec
driver code.  And all codec drivers except for a few ones (CA0132,
HDMI and modem) have been converted to use the new generic driver.

Conflicts:
	sound/pci/hda/patch_realtek.c
2013-01-23 08:34:12 +01:00
Takashi Iwai 2f179721c4 ALSA: hda - Fix mono amp values in proc output
The mono widget is always connected to the left channel, thus the left
channel amp value also should be referred for mono widgets instead of
the right channel.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-01-10 10:34:27 +01:00
David Henningsson f4f0a8c478 ALSA: hda - print power state for AFG node in proc file
It seems useful, and power states are required for AFG nodes,
so I see no reason not to print it. As a bonus, also print the
AFG nid.

Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-01-08 17:02:27 +01:00
Takashi Iwai ddf83485d7 Merge branch 'for-linus' into for-next
Conflicts:
	sound/pci/hda/hda_codec.c

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-08-20 22:14:26 +02:00
Wang Xingchao 088c820b73 ALSA: hda - fix Copyright debug message
As spec said, 1 indicates no copyright is asserted.

Signed-off-by: Wang Xingchao <xingchao.wang@intel.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-08-13 10:02:01 +02:00
Wang Xingchao 6152597971 ALSA: hda - show ICT/KAE control bits
Enable two debug options for S/PDIF Converter Control.
KAE: Keep Alive Enable; ICT: IEC Coding Type.

Signed-off-by: Wang Xingchao <xingchao.wang@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-08-13 10:01:29 +02:00
Wang Xingchao e076eb5c95 ALSA: hda - check proper return value
snd_hda_param_read() return value -1 means error, others are responses

Signed-off-by: Wang Xingchao <xingchao.wang@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-06-07 11:40:58 +02:00
Takashi Iwai 167d2d55bf ALSA: hda - Show D3cold state in proc files
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-06-06 12:17:45 +02:00
Wang Xingchao ce63f3ba25 ALSA: hda - add power states information in proc
add more power states information:
- reset status
- clock stop ok
- power states error

Output like:
Power: setting=D0, actual=D0, Error, Clock-stop-OK, Setting-reset

Signed-off-by: Wang Xingchao <xingchao.wang@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-06-06 12:12:49 +02:00
Michael Karcher 4f32456e5e ALSA: hda - Fix proc output for ADC amp values of CX20549
The CX20549 has only one single input amp on it's input converter
widget. Fix printing of values in the codec file in /proc/asound.

Signed-off-by: Michael Karcher <kernel@mkarcher.dialup.fu-berlin.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-04-07 12:25:02 +02:00
Takashi Iwai 3a90274de3 ALSA: hda - Return the error from get_wcaps_type() for invalid NIDs
When an invalid NID is given, get_wcaps() returns zero as the error,
but get_wcaps_type() takes it as the normal value and returns a bogus
AC_WID_AUD_OUT value.  This confuses the parser.

With this patch, get_wcaps_type() returns -1 when value 0 is given,
i.e. an invalid NID is passed to get_wcaps().

Bugzilla: https://bugzilla.novell.com/show_bug.cgi?id=740118

Cc: <stable@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-01-10 12:41:22 +01:00
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
Takashi Iwai 9e7717c9eb ALSA: hda - Always read raw connections for proc output
In the codec proc outputs, read the raw connections instead of the
cached connection list, i.e. proc files contain only raw values.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-07-12 07:45:01 +02:00
Takashi Iwai ea73496324 ALSA: hda - consitify string arrays
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-01-18 07:43:17 +01:00
Jaroslav Kysela 79c944ad13 ALSA: hda-intel - do not mix audio and modem function IDs
The function IDs are different for audio and modem. Do not mix them.
Also, show the unsolicited bit in the function_id register.

Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2010-07-19 16:46:56 +02:00
Jaroslav Kysela 9e3fd8719f ALSA: hda - introduce HDA_SUBDEV_AMP_FLAG (ControlAmp in proc)
The purpose of this changeset is to show information about amplifier
setting in the codec proc file. Something like:

  Control: name="Front Playback Volume", index=0, device=0
    ControlAmp: chs=3, dir=Out, idx=0, ofs=0
  Control: name="Front Playback Switch", index=0, device=0
    ControlAmp: chs=3, dir=In, idx=2, ofs=0

Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2009-12-15 09:33:17 +01:00
Jaroslav Kysela 5b0cb1d850 ALSA: hda - add more NID->Control mapping
This set of changes add missing NID values to some static control
elemenents. Also, it handles all "Capture Source" or "Input Source"
controls.

Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2009-12-15 09:33:04 +01:00
Wu Fengguang 728765b30a ALSA: intelhdmi - accept DisplayPort pin
HDA036 spec states:
  DP (Display Port) indicates whether the Pin Complex Widget supports
  connection to a Display Port sink.  Supported if set to 1. Note that
  it is possible for the pin widget to support more than one digital
  display connection type, e.g. HDMI and DP bit are both set to 1.

Also export the DP pin cap in procfs.

Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-12-11 07:56:04 +01:00
Wu Fengguang b923528ed2 ALSA: hda - show HBR(High Bit Rate) pin cap in procfs
Note that the HBR capability only applies to HDMI pin.

Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-12-11 07:55:55 +01:00
Wu Fengguang 83d605fd63 ALSA: hda - show EPSS capability in proc
Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-11-18 07:48:28 +01:00
Jaroslav Kysela 3911a4c19e ALSA: hda - proc - introduce Control: lines to show mixer<->NID assignment
This is an initial patch to show universal control<->NID assigment in
proc codec file. The change helps to debug codec related problems.

Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-11-16 11:35:14 +01:00
Takashi Iwai f8b7163529 ALSA: hda - Don't access invalid substream in proc file
The commit e330323520
"ALSA: hda - proc - show which I/O NID is associated to PCM device"
introduces the access to substream pointer.  But, PCMs may have no
substreams in one or both directions, and this results in NULL
dereference.  Also, print the first substream number doesn't make
sense.

This patch removes the access to the substream pointer, and reformat
to fit to the standard coding style.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-11-12 09:50:28 +01:00
Jaroslav Kysela e330323520 ALSA: hda - proc - show which I/O NID is associated to PCM device
Output something like:

Node 0x02 [Audio Output] wcaps 0x11: Stereo
  Device: name="ALC888 Analog", type="Audio", device=0, substream=0
  Converter: stream=0, channel=0
  ...

Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-11-10 16:06:57 +01:00
Wu Fengguang fd72d00846 ALSA: hda: move open coded tricks into get_wcaps_channels()
Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-08-24 09:42:48 +02:00
Takashi Iwai a22d543a95 ALSA: hda - Introduce get_wcaps_type() macro
Add a helper macro to retrieve the widget type from wiget cap bits.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-07-27 12:54:26 +02:00
Takashi Iwai 812a2cca29 ALSA: hda - Split codec->name to vendor and chip name strings
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: Takashi Iwai <tiwai@suse.de>
2009-05-16 10:00:49 +02:00
Pascal de Bruijn 234b4346a0 ALSA: hda - Add function id to proc output
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: Pascal de Bruijn <pascal@unilogicnetworks.net>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-03-23 11:55:36 +01:00
Takashi Iwai 07a1e81355 ALSA: hda - Don't show the current connection for power widgets
The power-widgets have no connection selection, so skip the check
in proc output, too.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-03-19 17:08:19 +01:00
Takashi Iwai 9421f9543b ALSA: hda - Print multiple out-amp values of pin widgets on Conext codecs
Add a flag to work around the non-standard amp-value handling on
Conexant codecs.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-03-12 17:06:07 +01:00
Takashi Iwai 516a1ced45 ALSA: hda - No widget selection for volume knob widgets in proc output
Volume-knob widgets have no widget selection although they have widget
connections.  Thus, the connection list in the proc output shouldn't
contain the selection (*).

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-02-02 11:42:08 +01:00
Takashi Iwai 2d34e1b3bb ALSA: hda - Add IDT/STAC-specific proc output
Added power-map and analog-loopback information to proc output for
IDT/STAC codecs.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2008-11-28 14:40:55 +01:00
Takashi Iwai daead538e9 ALSA: hda - Add codec-specific proc hook
Added a hook for proc outputs of codec-specific stuff.

Moved realtek-specific coeff output into patch_realtek.c as well.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2008-11-28 12:55:36 +01:00
Takashi Iwai b0e6481a9a ALSA: hda - Really fix bits value in proc output
The fix in 82894b6f6f resulted in zero
due to wrong mask and bit shifts.  Now fixed really.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2008-11-25 16:07:01 +01:00
Takashi Iwai 82894b6f6f ALSA: hda - Fix proc pcm rate bits
Show only the relevant bits in the PCM rate bits as in the earlier version.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2008-11-25 11:42:54 +01:00
Takashi Iwai b20222667d ALSA: hda - Fix build without CONFIG_PROC_FS
snd_print_pcm_rates() and snd_print_pcm_bits() are used by both
hda_proc.c and hda_eld.c, thus they have to be defined in the common
place.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2008-11-21 21:24:03 +01:00
Wu Fengguang 218b5ffc0d ALSA: hda - properly print ELD sample bits
Fix bugs on printing the ELD sample bits.

Signed-off-by: Wu Fengguang <wfg@linux.intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2008-11-21 08:27:30 +01:00