[Sound-open-firmware] [PATCH 2/4] Add IPC message definition for DMA tracing.

[yan.wang at linux.intel.com]

From: Yan Wang <yan.wang at linux.intel.com>

1. Add SOF_IPC_GLB_TRACE_MSG class of IPC communication.
2. Add two IPC commands for DMA tracing.
  a) SOF_IPC_TRACE_DMA_INIT is used to initilize local buffer on DSP side.
  b) SOF_IPC_TRACE_DMA_PARAMS is used to receive host DMA buffer PHY.
3. Define DMA for Trace params IPC info structure.

Signed-off-by: Yan Wang <yan.wang at linux.intel.com>
---
 src/include/uapi/ipc.h | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/src/include/uapi/ipc.h b/src/include/uapi/ipc.h
index cbccb55..acfa05e 100644
--- a/src/include/uapi/ipc.h
+++ b/src/include/uapi/ipc.h
@@ -63,6 +63,7 @@
 #define SOF_IPC_GLB_STREAM_MSG			SOF_GLB_TYPE(0x6U)
 #define SOF_IPC_FW_READY			SOF_GLB_TYPE(0x7U)
 #define SOF_IPC_GLB_DAI_MSG			SOF_GLB_TYPE(0x8U)
+#define SOF_IPC_GLB_TRACE_MSG			SOF_GLB_TYPE(0x9U)
 
 /*
  * DSP Command Message Types
@@ -113,6 +114,9 @@
 #define SOF_IPC_STREAM_VORBIS_PARAMS		SOF_CMD_TYPE(0x010)
 #define SOF_IPC_STREAM_VORBIS_FREE		SOF_CMD_TYPE(0x011)
 
+/* trace and debug */
+#define SOF_IPC_TRACE_DMA_INIT			SOF_CMD_TYPE(0x001)
+#define SOF_IPC_TRACE_DMA_PARAMS		SOF_CMD_TYPE(0x002)
 
 /* Get message component id */
 #define SOF_IPC_MESSAGE_ID(x)			(x & 0xffff)
@@ -796,4 +800,14 @@ struct sof_ipc_window {
 	struct sof_ipc_window_elem window[];
 }  __attribute__((packed));
 
+/*
+ * DMA for Trace
+ */
+
+/* DMA for Trace params info - SOF_IPC_DEBUG_DMA_PARAMS */
+struct sof_ipc_dma_trace_params {
+	struct sof_ipc_hdr hdr;
+	struct sof_ipc_host_buffer buffer;
+}  __attribute__((packed));
+
 #endif
-- 
2.7.4