audio: ams: add WOV detect and control message definitions

Add AMS message UUIDs, payload structures (wov_detect_payload, wov_ctrl_payload),
and command codes for inter-component communication between WOV detectors and
the multi-slot WOV arbiter.

Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>

Author: lrgirdwo

src/include/sof/lib/ams_msg.h

@@ -15,4 +15,40 @@ typedef uint8_t ams_uuid_t[16];
 #define AMS_KPD_MSG_UUID { 0x80, 0xa1, 0x11, 0x22, 0xb3, 0x6c, 0x11, 0xed, \
 			   0xaf, 0xa1, 0x02, 0x42, 0xac, 0x12, 0x00, 0x02 }
 
+/*
+ * WOV arbiter AMS message UUIDs.
+ *
+ * AMS_WOV_DETECT_MSG_UUID: c3d7e841-12f0-4e8a-b901-5a6b7c8d9e0f
+ *   Sent by a WOV detector (detect_test) to the WOV arbiter when a keyword
+ *   is detected.  Payload: struct wov_detect_payload.
+ *
+ * AMS_WOV_CTRL_MSG_UUID: f1e2d3c4-b5a6-4789-8ace-1234567890ab
+ *   Sent by the WOV arbiter to all WOV detectors to pause or resume
+ *   detection.  Payload: struct wov_ctrl_payload.
+ */
+#define AMS_WOV_DETECT_MSG_UUID { 0xc3, 0xd7, 0xe8, 0x41, 0x12, 0xf0, 0x4e, \
+				  0x8a, 0xb9, 0x01, 0x5a, 0x6b, 0x7c, 0x8d, \
+				  0x9e, 0x0f }
+
+#define AMS_WOV_CTRL_MSG_UUID   { 0xf1, 0xe2, 0xd3, 0xc4, 0xb5, 0xa6, 0x47, \
+				  0x89, 0x8a, 0xce, 0x12, 0x34, 0x56, 0x78, \
+				  0x90, 0xab }
+
+#define WOV_SLOT_INVALID 0xff
+
+/* Payload for AMS_WOV_DETECT_MSG_UUID (detector → arbiter) */
+struct wov_detect_payload {
+	uint8_t slot_id; /* detector slot: 0, 1, or 2 */
+};
+
+/* Command codes for AMS_WOV_CTRL_MSG_UUID (arbiter → detectors) */
+#define WOV_CTRL_CMD_PAUSE  0
+#define WOV_CTRL_CMD_RESUME 1
+
+/* Payload for AMS_WOV_CTRL_MSG_UUID (arbiter → detectors) */
+struct wov_ctrl_payload {
+	uint8_t cmd;         /* WOV_CTRL_CMD_PAUSE or WOV_CTRL_CMD_RESUME */
+	uint8_t active_slot; /* slot being activated (valid for PAUSE) */
+};
+
 #endif /* __SOF_LIB_AMS_MSG_H__ */