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path: root/sound/pci/hda/hda_eld.c
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2009-07-29ALSA: hda: fix out-of-bound hdmi_eld.sad[] writeRoel Kluin
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>
2008-11-22ALSA: hda - fix build warning when CONFIG_PROC_FS=nWu Fengguang
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>
2008-11-22ALSA: hda - fix DisplayPort namingWu Fengguang
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>
2008-11-22ALSA: hda - ELD proc interface write updatesWu Fengguang
- 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>
2008-11-22ALSA: hda - make HDMI messages more user friendlyWu Fengguang
- 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>
2008-11-21ALSA: hda - Release ELD proc fileTakashi Iwai
Release ELD proc file when reconfigured so that no leak occurs. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2008-11-21ALSA: hda - support writing to the ELD proc fileWu Fengguang
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>
2008-11-21ALSA: hda: modify monitor name to be consistent with other ELD proc itemsWu Fengguang
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>
2008-11-21ALSA: hda - properly print ELD sample bitsWu Fengguang
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>
2008-11-19ALSA: hda: compact ELD output messagesWu Fengguang
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>
2008-11-19ALSA: hda: make global snd_print_pcm_bits()Wu Fengguang
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>
2008-11-19ALSA: hda: minor output message cleanupsWu Fengguang
Some minor user visible message cleanups. Signed-off-by: Wu Fengguang <wfg@linux.intel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2008-11-19ALSA: hda: rename sink_eld to hdmi_eldWu Fengguang
Rename struct sink_eld to hdmi_eld. Signed-off-by: Wu Fengguang <wfg@linux.intel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2008-11-19ALSA: hda: minor code cleanupsWu Fengguang
Some minor code cleanups. Signed-off-by: Wu Fengguang <wfg@linux.intel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2008-11-19ALSA: hda: make global snd_print_channel_allocation()Wu Fengguang
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>
2008-11-18ALSA: ELD proc interface for HDMI sinksWu Fengguang
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>
2008-11-18ALSA: create hda_eld.c for ELD routines and proc interfaceWu Fengguang
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>