• Takashi Sakamoto's avatar
    ALSA: fireworks: Add connection and stream management · 315fd41f
    Takashi Sakamoto authored
    Fireworks manages connections by CMP and can transmit/receive AMDTP streams
    with a few quirks. This commit adds functionality to start/stop the streams.
    
    Major Fireworks products don't support 'SYT-Match' clock source mode, except
    for AudioFire12/8(till 2009 July) with firmware version 1.0. Already in
    previous commit, this driver don't support such old firmwares. So this commit
    adds support for non 'SYT-Match' clock source modes.
    
    I note that this driver has a short gap for MIDI streams when starting PCM
    stream. When AMDTP streams are running only for MIDI data and PCM data is
    going to be joined at different sampling rate, then AMDTP streams are
    stopped once and started again after changing sampling rate.
    
    Unfortunately, Fireworks is not fully compliant to IEC 61883-1/6. Some commits
    following to this commit add these quirks.
    Signed-off-by: default avatarTakashi Sakamoto <o-takashi@sakamocchi.jp>
    Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
    315fd41f
fireworks.c 8.71 KB