Commit Graph

25 Commits

Author SHA1 Message Date
Takashi Iwai 84eb01be18 ALSA: hda - Merge all HDMI modules into the unified module
This patch merges all three patch_*hdmi variants to the single HDMI
parser.  There is only one snd-hda-codec-hdmi module now.

In this patch, the behavior of each parser isn't changed much.
The old ATI parser still doesn't use the dynamic parser yet.
In later patches, they'll be cleaned up.

Also, this patch gets rid of the individual snd-hda-eld module and
builds into snd-hda-codec-hdmi, since this is referred only from the
HDMI parser.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2010-09-20 10:02:29 +02:00
Takashi Iwai 274714f55c ALSA: hda - Fix build error with CONFIG_PROC_FS=n
hdmi_eld_update_pcm_info() must be always compiled in.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2010-08-19 08:11:53 +02:00
Takashi Iwai bbbe33900d ALSA: hda - Restrict PCM parameters per ELD information over HDMI
When a device is plugged over HDMI, it passes some information in ELD
including the supported PCM parameters like formats, rates, channels.
This patch adds the check to PCM open callback of HDMI streams so that
only valid parameters the device supports are used.

When no device is plugged, the parameters the codec supports are used;
it's mostly all parameters the hardware can work.  This is for apps
that are started before device plugging and do probing (e.g. a sound
daemon), so that at least, probing would work even before the device
plugging.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2010-08-13 08:45:23 +02:00
Tejun Heo 5a0e3ad6af include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
percpu.h is included by sched.h and module.h and thus ends up being
included when building most .c files.  percpu.h includes slab.h which
in turn includes gfp.h making everything defined by the two files
universally available and complicating inclusion dependencies.

percpu.h -> slab.h dependency is about to be removed.  Prepare for
this change by updating users of gfp and slab facilities include those
headers directly instead of assuming availability.  As this conversion
needs to touch large number of source files, the following script is
used as the basis of conversion.

  http://userweb.kernel.org/~tj/misc/slabh-sweep.py

The script does the followings.

* Scan files for gfp and slab usages and update includes such that
  only the necessary includes are there.  ie. if only gfp is used,
  gfp.h, if slab is used, slab.h.

* When the script inserts a new include, it looks at the include
  blocks and try to put the new include such that its order conforms
  to its surrounding.  It's put in the include block which contains
  core kernel includes, in the same order that the rest are ordered -
  alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
  doesn't seem to be any matching order.

* If the script can't find a place to put a new include (mostly
  because the file doesn't have fitting include block), it prints out
  an error message indicating which .h file needs to be added to the
  file.

The conversion was done in the following steps.

1. The initial automatic conversion of all .c files updated slightly
   over 4000 files, deleting around 700 includes and adding ~480 gfp.h
   and ~3000 slab.h inclusions.  The script emitted errors for ~400
   files.

2. Each error was manually checked.  Some didn't need the inclusion,
   some needed manual addition while adding it to implementation .h or
   embedding .c file was more appropriate for others.  This step added
   inclusions to around 150 files.

3. The script was run again and the output was compared to the edits
   from #2 to make sure no file was left behind.

4. Several build tests were done and a couple of problems were fixed.
   e.g. lib/decompress_*.c used malloc/free() wrappers around slab
   APIs requiring slab.h to be added manually.

5. The script was run on all .h files but without automatically
   editing them as sprinkling gfp.h and slab.h inclusions around .h
   files could easily lead to inclusion dependency hell.  Most gfp.h
   inclusion directives were ignored as stuff from gfp.h was usually
   wildly available and often used in preprocessor macros.  Each
   slab.h inclusion directive was examined and added manually as
   necessary.

6. percpu.h was updated not to include slab.h.

7. Build test were done on the following configurations and failures
   were fixed.  CONFIG_GCOV_KERNEL was turned off for all tests (as my
   distributed build env didn't work with gcov compiles) and a few
   more options had to be turned off depending on archs to make things
   build (like ipr on powerpc/64 which failed due to missing writeq).

   * x86 and x86_64 UP and SMP allmodconfig and a custom test config.
   * powerpc and powerpc64 SMP allmodconfig
   * sparc and sparc64 SMP allmodconfig
   * ia64 SMP allmodconfig
   * s390 SMP allmodconfig
   * alpha SMP allmodconfig
   * um on x86_64 SMP allmodconfig

8. percpu.h modifications were reverted so that it could be applied as
   a separate patch and serve as bisection point.

Given the fact that I had only a couple of failures from tests on step
6, I'm fairly confident about the coverage of this conversion patch.
If there is a breakage, it's likely to be something in one of the arch
headers which should be easily discoverable easily on most builds of
the specific arch.

Signed-off-by: Tejun Heo <tj@kernel.org>
Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
2010-03-30 22:02:32 +09:00
Takashi Iwai dd74b46535 ALSA: hda - Build hda_eld into snd-hda-codec module
Now two modules require hda_eld.o, so we need to put it to the common
place instead of building into two individual modules.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2010-03-04 16:05:24 +01:00
Wu Fengguang 864f92be7e ALSA: hda - introduce snd_hda_jack_detect() and snd_hda_pin_sense()
This helps merge duplicate code.

v2: add snd_hda_jack_detect() and comments recommended by Takashi.

Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-11-18 07:40:57 +01:00
Wu Fengguang 23ccc2bd24 ALSA: intelhdmi - export monitor-presence and ELD-valid status
Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-11-18 07:37:49 +01:00
Wu Fengguang 54a25f87e9 ALSA: hda - vectorize intelhdmi
The Intel IbexPeak HDMI codec supports 2 converters and 3 pins,
which requires converting the cvt_nid/pin_nid to arrays.

The active pin number (the one connected with a live HDMI monitor/sink)
will be dynamically identified on hotplug events.

It exports two HDMI devices, so that user space can choose the A/V pipe
for sending the audio samples.

It's still undefined behavior when there are two active monitors
connected and routed to the same audio converter.

Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-10-30 11:44:26 +01:00
Roel Kluin 78735cffc2 ALSA: hda: fix out-of-bound hdmi_eld.sad[] write
e->sad[] is declared with size ELD_MAX_SAD=16, but the guard
allows range 0-31.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-07-29 14:35:20 +02:00
Wu Fengguang 4805286bff ALSA: hda - fix build warning when CONFIG_PROC_FS=n
Fix "defined but not used" build warning by moving eld_versoin_names[]
and cea_edid_version_names[] into hdmi_print_eld_info().

Signed-off-by: Wu Fengguang <wfg@linux.intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2008-11-22 11:16:15 +01:00
Wu Fengguang 9415e1c418 ALSA: hda - fix DisplayPort naming
DisplayPort is a digital display interface standard put forth by
the Video Electronics Standards Association (VESA). It defines a
new license-free, royalty-free, digital audio/video interconnect,
intended to be used primarily between a computer and its display monitor,
or a computer and a home-theater system.

				- From Wikipedia, the free encyclopedia

Signed-off-by: Wu Fengguang <wfg@linux.intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2008-11-22 11:16:04 +01:00
Wu Fengguang acb0599388 ALSA: hda - ELD proc interface write updates
- rename ELD proc write routine to hdmi_write_eld_info()
- support modifying WMAPro's profile

Write to some ELD fields (monitor_name, manufacture_id, product_id,
eld_version, edid_version) are deliberately not supported, since that
won't correct wrong behaviors and only leads to confusions.

Signed-off-by: Wu Fengguang <wfg@linux.intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2008-11-22 11:15:21 +01:00
Wu Fengguang 03284c8f23 ALSA: hda - make HDMI messages more user friendly
- make some messages more user friendly
- add message prefix "HDMI:" to indicate the problem's domain
  (also easier to do `dmesg | grep HDMI` ;-)

Signed-off-by: Wu Fengguang <wfg@linux.intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2008-11-22 11:14:48 +01:00
Takashi Iwai f208dba97f ALSA: hda - Release ELD proc file
Release ELD proc file when reconfigured so that no leak occurs.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2008-11-21 09:17:30 +01:00
Wu Fengguang acdda7915e ALSA: hda - support writing to the ELD proc file
Allow users to fix quicks of ELD ROMs by writing new values to the ELD proc
interface. The format is one or more lines of "name hex_value".

Users can add/remove/modify up to 32 SAD(Short Audio Descriptor) entries.

Signed-off-by: Wu Fengguang <wfg@linux.intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2008-11-21 08:27:49 +01:00
Wu Fengguang db74210470 ALSA: hda: modify monitor name to be consistent with other ELD proc items
Rename "monitor name" to "monitor_name" to conform with the keyword style.

Signed-off-by: Wu Fengguang <wfg@linux.intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2008-11-21 08:27:44 +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
Wu Fengguang ae8cb4caa3 ALSA: hda: compact ELD output messages
Strip out some ELD printk messages that end user won't care,
and make the output compact.

Signed-off-by: Wu Fengguang <wfg@linux.intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2008-11-19 09:42:38 +01:00
Wu Fengguang d39b4352f2 ALSA: hda: make global snd_print_pcm_bits()
Introduce a global function snd_print_pcm_bits() and use it in the ELD code.

Signed-off-by: Wu Fengguang <wfg@linux.intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2008-11-19 09:42:30 +01:00
Wu Fengguang 06f69d17a9 ALSA: hda: minor output message cleanups
Some minor user visible message cleanups.

Signed-off-by: Wu Fengguang <wfg@linux.intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2008-11-19 09:42:21 +01:00
Wu Fengguang 5b87ebb7a7 ALSA: hda: rename sink_eld to hdmi_eld
Rename struct sink_eld to hdmi_eld.

Signed-off-by: Wu Fengguang <wfg@linux.intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2008-11-19 09:42:07 +01:00
Wu Fengguang 4e19c58f27 ALSA: hda: minor code cleanups
Some minor code cleanups.

Signed-off-by: Wu Fengguang <wfg@linux.intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2008-11-19 09:41:59 +01:00
Wu Fengguang 903b21d8b7 ALSA: hda: make global snd_print_channel_allocation()
code refactor: make a global function snd_print_channel_allocation().

Signed-off-by: Wu Fengguang <wfg@linux.intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2008-11-19 07:35:28 +01:00
Wu Fengguang 5f1e71b1cc ALSA: ELD proc interface for HDMI sinks
Create /proc/asound/card<card_no>/eld#<codec_no> to reflect the audio
configurations and capabilities of the attached HDMI sink.

Some notes:

- Shall we show an empty file if the ELD content is not valid?
  Well it's not that simple. There could be partially populated ELD,
  and there may be malformed ELD provided by buggy drivers/monitors.
  So expose ELD as it is.

- The ELD retrieval routines rely on the Intel HDA interface,
  others are/could be universal and independent ones.

- How do we name the proc file?
  If there are going to be two HDMI pins per codec, then the current naming
  scheme (eld#<codec no>) will fail. Luckily the user space dependencies should
  be minimal, so it would be trivial to do the rename if that happens.

- The ELD proc file content is designed to be easy for scripts and human reading.
  Its lines all have the pattern:
	  <item_name>\t[\t]*<item_value>
  where <item_name> is a keyword in c language, while <item_value> could be any
  contents, including white spaces. <item_value> could also be a null value.

Signed-off-by: Wu Fengguang <wfg@linux.intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2008-11-18 07:39:12 +01:00
Wu Fengguang 7f4a9f4342 ALSA: create hda_eld.c for ELD routines and proc interface
ELD handling routines can be shared by all HDMI codecs,
and they are large enough to make a standalone source file.

Signed-off-by: Wu Fengguang <wfg@linux.intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2008-11-18 07:39:03 +01:00