ALSA: ca0106 - Fix the max capture buffer size

commit 34fdeb2d07102e07ecafe79dec170bd6733f2e56 upstream.

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>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/sound/pci/ca0106/ca0106_main.c b/sound/pci/ca0106/ca0106_main.c
index bfac30f7929f3094b0f95c343f2659cd0381a4a0..a31412befd2212264d8da7c9384330298233983f 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,