[ALSA] IEC958 definitions for consumer status channel, byte 4

Added definition for byte 4 of SPDIF channel status, according to
second edition of IEC 60958-3 (consumer) spec.
Signed-off-by: Pawel MOLL <pawel.moll@st.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

include/sound/asoundef.h

@@ -112,6 +112,14 @@
 #define IEC958_AES3_CON_CLOCK_1000PPM	(0<<4)	/* 1000 ppm */
 #define IEC958_AES3_CON_CLOCK_50PPM	(1<<4)	/* 50 ppm */
 #define IEC958_AES3_CON_CLOCK_VARIABLE	(2<<4)	/* variable pitch */
+#define IEC958_AES4_CON_MAX_WORDLEN_24	(1<<0)	/* 0 = 20-bit, 1 = 24-bit */
+#define IEC958_AES4_CON_WORDLEN		(7<<1)	/* mask - sample word length */
+#define IEC958_AES4_CON_WORDLEN_NOTID	(0<<1)	/* not indicated */
+#define IEC958_AES4_CON_WORDLEN_20_16	(1<<1)	/* 20-bit or 16-bit */
+#define IEC958_AES4_CON_WORDLEN_22_18	(2<<1)	/* 22-bit or 18-bit */
+#define IEC958_AES4_CON_WORDLEN_23_19	(4<<1)	/* 23-bit or 19-bit */
+#define IEC958_AES4_CON_WORDLEN_24_20	(5<<1)	/* 24-bit or 20-bit */
+#define IEC958_AES4_CON_WORDLEN_21_17	(6<<1)	/* 21-bit or 17-bit */
 
 /*****************************************************************************
  *                                                                           *