[Sound-open-firmware] [RFC PATCH v2 04/29] Add trace level IPC message processing logic.

[yan.wang at linux.intel.com]

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

When SOF side receives trace level IPC message, set it to global
trace level array or component structure for future usage.

Signed-off-by: Yan Wang <yan.wang at linux.intel.com>
---
Test with:
CNL nocodec
SOF master: c1f2682c210201bbbc96fce7b382b25b90d19775
SOF-Tool master: 86fe688a2b4f68a1ce87e0951686be12a00f1a3c
https://github.com/plbossart/sound/tree/topic/sof-v4.14:
d09db67c5a9d6dfc85f700669fa2e43c678c8d51
---
 src/ipc/handler.c | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/src/ipc/handler.c b/src/ipc/handler.c
index 581ce9e..41290ca 100644
--- a/src/ipc/handler.c
+++ b/src/ipc/handler.c
@@ -510,6 +510,34 @@ static int ipc_glb_pm_message(uint32_t header)
  * Debug IPC Operations.
  */
 
+static int ipc_dma_trace_levels(uint32_t header)
+{
+	struct sof_ipc_dma_trace_levels *levels = _ipc->comp_data;
+	struct sof_ipc_reply reply;
+	int err;
+
+	if (levels->comp_id == -1)
+		err = dma_trace_set_global_level(_ipc->dmat, levels->type,
+						 levels->level);
+	else
+		err = ipc_set_comp_level(_ipc, levels->comp_id, levels->level);
+
+	if (err < 0)
+		goto error;
+
+	/* write reply message to the outbox */
+	reply.hdr.size = sizeof(reply);
+	reply.hdr.cmd = header;
+	reply.error = 0;
+	mailbox_hostbox_write(0, &reply, sizeof(reply));
+	return 0;
+
+error:
+	if (err < 0)
+		trace_ipc_error("eA!");
+	return -EINVAL;
+}
+
 static int ipc_dma_trace_config(uint32_t header)
 {
 #ifdef CONFIG_HOST_PTABLE
@@ -619,6 +647,8 @@ static int ipc_glb_debug_message(uint32_t header)
 	switch (cmd) {
 	case iCS(SOF_IPC_TRACE_DMA_PARAMS):
 		return ipc_dma_trace_config(header);
+	case iCS(SOF_IPC_TRACE_DMA_LEVELS):
+		return ipc_dma_trace_levels(header);
 	default:
 		trace_ipc_error("eDc");
 		trace_error_value(header);
-- 
2.14.3