• Takashi Sakamoto's avatar
    ALSA: dice: add parameters of stream formats for models produced by Alesis · 28b208f6
    Takashi Sakamoto authored
    Alesis shipped some models with DICE ASICs. All of them just support
    DICE original protocol and drivers can't retrieve all of available stream
    formats without changing status of sampling transmission frequency
    actually.
    
    This commit puts some hard-coded parameters for the models. When detecting
    the models, the corresponding parameters are copied as cache of stream
    formats.
    
    I note that each of pair of iO14/iO26 and MultiMix 8/12/16 has the same
    model ID on their configuration ROM. The MultiMix 8/12/16 just support
    one mode for sampling transmission frequency and ALSA dice driver already
    handles them correctly. The iO14/iO26 support three modes and need
    hard-coded parameters. To distinguish these two models, this commit let
    the driver to retrieve current stream formats and compare it to known
    parameters, then decide it.
    Signed-off-by: default avatarTakashi Sakamoto <o-takashi@sakamocchi.jp>
    Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
    28b208f6
dice.c 10.5 KB