• Takashi Sakamoto's avatar
    ALSA: bebob: Add support for M-Audio usual Firewire series · 9076c22d
    Takashi Sakamoto authored
    This commit allows this driver to support some models which M-Audio produces
    with DM1000/DM1000E with usual firmware. They are:
     - Firewire 410
     - Firewire AudioPhile
     - Firewire Solo
     - Ozonic
     - NRV10
     - FirewireLightBridge
    
    According to a person who worked in BridgeCo, some models are produced with
    'Pre-BeBoB'. This means that these products were released before BeBoB was
    officially produced, and later BeBoB specification was formed. So these models
    have some quirks.
    
    M-Audio usual firmware quirks:
     - Just after powering on, 'Firewire 410' waits to download firmware. This
       state is changed when receiving cue. Then bus reset is generated and the
       device is recognized as a different model with the uploaded firmware.
     - 'Firewire Audiophile' also waits to download firmware but its
       vendor id/model id is the same as the one after loading firmware.
     - The information of channel mapping for MIDI conformant data channel is
       invalid against BridgeCo specification.
    
    This commit adds some codes for these quirks but don't support to upload
    firmware.
    
    This commit also adds specific operations to get metering information. The
    metering information also includes status of clock synchronization if the model
    supports to switch source of clock.
    
    The specification of FirewireLightBridge is unknown. So in this time, normal
    operations are applied for this model.
    Signed-off-by: default avatarTakashi Sakamoto <o-takashi@sakamocchi.jp>
    Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
    9076c22d
bebob.c 12.1 KB