Commit graph

16 commits

Author SHA1 Message Date
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