[ALSA] Improve SPDIF playback via the P16V/CA0151 chip.

EMU10K1/EMU10K2 driver
Although we can set 44100 as the output rate, the SPDIF can do it, but the Analog output cannot.
The SPDIF has the bug, whereby the Left channel arrives one sample late, so although we don't do any resampling,
it is not good for AC3 non-audio output.

Signed-off-by: James Courtier-Dutton <James@superbug.co.uk>

1 files changed, 1 insertions, 0 deletions

diff --git a/include/sound/emu10k1.h b/include/sound/emu10k1.h
index f5babd3f8452..61a3f418f302 100644
--- a/include/sound/emu10k1.h
+++ b/include/sound/emu10k1.h
@@ -747,6 +747,7 @@
                                                 /* Assumes sample lock                          */
 
 /* These three bitfields apply to CDSRCS, GPSRCS, and (except as noted) ZVSRCS.                 */
+#define SRCS_SPDIFVALID         0x04000000      /* SPDIF stream valid                           */
 #define SRCS_SPDIFLOCKED        0x02000000      /* SPDIF stream locked                          */
 #define SRCS_RATELOCKED         0x01000000      /* Sample rate locked                           */
 #define SRCS_ESTSAMPLERATE      0x0007ffff      /* Do not modify this field.                    */