ALSA: ca0106 - Fix the max capture buffer size

The capture buffer size with 64kB seems broken with CA0106.
At least, either the update timing or the DMA position is wrong,
and this screws up pulseaudio badly.

This patch restricts the max buffer size less than that to make life
a bit easier.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Cc: <stable@kernel.org>

diff --git a/sound/pci/ca0106/ca0106_main.c b/sound/pci/ca0106/ca0106_main.c
index 57b992a..700f15e 100644 (file)
--- a/sound/pci/ca0106/ca0106_main.c
+++ b/sound/pci/ca0106/ca0106_main.c
@@ -325,9 +325,9 @@ static struct snd_pcm_hardware snd_ca0106_capture_hw = {
        .rate_max =             192000,
        .channels_min =         2,
        .channels_max =         2,
-       .buffer_bytes_max =     ((65536 - 64) * 8),
+       .buffer_bytes_max =     65536 - 128,
        .period_bytes_min =     64,
-       .period_bytes_max =     (65536 - 64),
+       .period_bytes_max =     32768 - 64,
        .periods_min =          2,
        .periods_max =          2,
        .fifo_size =            0,