• Christopher Zimmermann's avatar
    [SPARC] cs4231: Fix SBUS support in this driver. · a131430c
    Christopher Zimmermann authored
    
    
    From: Christopher Zimmermann <madroach@zakweb.de>
    
    This patch enables SBus support for the cs4231 sound driver.
    It is tested on an Ultra2. Capture and playback both work.
    I experienced lags and crashes using certain threaded
    players like ogg123 and mp3blaster, while the former is
    lagging far more. This behavior may be specific to SMP
    systems. It is reproducable using the dummy sound card
    driver. Sox works flawlessly.
    
    Setting up the calculation of ptr in snd_cs4231_playback_pointer 
    was a bit strange. I got it to work by not incrementing the
    [pc]_periods_sent counter when starting DMA the first time
    in cs4231_dma_trigger. Therefore this dummy thing.
    
    [ I did some minor cleanups -DaveM ]
    Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    a131430c