1. 09 Dec, 2010 2 commits
  2. 08 Dec, 2010 1 commit
    • Anssi Hannula's avatar
      ALSA: hda - Reset sample sizes and max bitrates when reading ELD · 0bbaee3a
      Anssi Hannula authored
      When a new HDMI/DP device is plugged in, hdmi_update_short_audio_desc()
      is called for every SAD (Short Audio Descriptor) in the ELD data. For
      LPCM coding type SAD defines the supported sample sizes. For several
      other coding types (such as AC-3), a maximum bitrate is defined.
      
      The maximum bitrate and sample size fields are not always cleared.
      Therefore, if a device is unplugged and a different one is plugged in,
      and the coding types of some SAD positions differ between the devices,
      the old max_bitrate or sample_bits values will persist if the new SADs
      do not define those values.
      
      The leftover max_bitrate and sample_bits do not cause any issues other
      than wrongly showing up in eld#X.Y procfs file and kernel log.
      
      Fix that by always clearing sample_bits and max_bitrate when reading
      SADs.
      Signed-off-by: default avatarAnssi Hannula <anssi.hannula@iki.fi>
      Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
      0bbaee3a
  3. 07 Dec, 2010 2 commits
    • Anssi Hannula's avatar
      ALSA: hda - Always allow basic audio irrespective of ELD info · 3dc86429
      Anssi Hannula authored
      Commit bbbe3390 added functionality to restrict PCM parameters
      based on ELD info (derived from EDID data) of the audio sink.
      
      However, according to CEA-861-D no SAD is needed for basic audio
      (32/44.1/48kHz stereo 16-bit audio), which is instead indicated with a
      basic audio flag in the CEA EDID Extension.
      
      The flag is not present in ELD. However, as all audio capable sinks are
      required to support basic audio, we can assume it to be always
      available.
      
      Fix allowed audio formats with sinks that have SADs (Short Audio
      Descriptors) which do not completely overlap with the basic audio
      formats (there are no reports of affected devices so far) by always
      assuming that basic audio is supported.
      Reported-by: default avatarStephen Warren <swarren@nvidia.com>
      Signed-off-by: default avatarAnssi Hannula <anssi.hannula@iki.fi>
      Cc: stable@kernel.org
      Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
      3dc86429
    • Anssi Hannula's avatar
      ALSA: hda - Do not wrongly restrict min_channels based on ELD · 4b0dbdb1
      Anssi Hannula authored
      Commit bbbe3390 added functionality to restrict PCM parameters
      based on ELD info (derived from EDID data) of the audio sink.
      
      However, it wrongly assumes that the bits 0-2 of the first byte of
      CEA Short Audio Descriptors mean a supported number of channels. In
      reality, they mean the maximum number of channels (as per CEA-861-D
      7.5.2). This means that the channel count can only be used to restrict
      max_channels, not min_channels.
      
      Restricting min_channels causes us to deny opening the device in stereo
      mode if the sink only has SADs that declare larger numbers of channels
      (like Primare SP32 AV Processor does).
      
      Fix that by not restricting min_channels based on ELD information.
      Signed-off-by: default avatarAnssi Hannula <anssi.hannula@iki.fi>
      Reported-by: default avatarJean-Yves Avenard <jyavenard@gmail.com>
      Tested-by: default avatarJean-Yves Avenard <jyavenard@gmail.com>
      Cc: stable@kernel.org
      Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
      4b0dbdb1
  4. 06 Dec, 2010 1 commit
  5. 04 Dec, 2010 1 commit
  6. 03 Dec, 2010 2 commits
  7. 02 Dec, 2010 5 commits
  8. 01 Dec, 2010 1 commit
  9. 30 Nov, 2010 5 commits
  10. 29 Nov, 2010 7 commits
  11. 26 Nov, 2010 2 commits
  12. 25 Nov, 2010 11 commits