+/* extended audio ID register bit defines */
+#define AC97_EXTID_VRA 0x0001
+#define AC97_EXTID_DRA 0x0002
+#define AC97_EXTID_SPDIF 0x0004
+#define AC97_EXTID_VRM 0x0008
+#define AC97_EXTID_DSA0 0x0010
+#define AC97_EXTID_DSA1 0x0020
+#define AC97_EXTID_CDAC 0x0040
+#define AC97_EXTID_SDAC 0x0080
+#define AC97_EXTID_LDAC 0x0100
+#define AC97_EXTID_AMAP 0x0200
+#define AC97_EXTID_REV0 0x0400
+#define AC97_EXTID_REV1 0x0800
+#define AC97_EXTID_ID0 0x4000
+#define AC97_EXTID_ID1 0x8000
+
+/* extended status register bit defines */
+#define AC97_EXTSTAT_VRA 0x0001
+#define AC97_EXTSTAT_DRA 0x0002
+#define AC97_EXTSTAT_SPDIF 0x0004
+#define AC97_EXTSTAT_VRM 0x0008
+#define AC97_EXTSTAT_SPSA0 0x0010
+#define AC97_EXTSTAT_SPSA1 0x0020
+#define AC97_EXTSTAT_CDAC 0x0040
+#define AC97_EXTSTAT_SDAC 0x0080
+#define AC97_EXTSTAT_LDAC 0x0100
+#define AC97_EXTSTAT_MADC 0x0200
+#define AC97_EXTSTAT_SPCV 0x0400
+#define AC97_EXTSTAT_PRI 0x0800
+#define AC97_EXTSTAT_PRJ 0x1000
+#define AC97_EXTSTAT_PRK 0x2000
+#define AC97_EXTSTAT_PRL 0x4000
+