ipc4: add qemu gateway types and expose pipeline creation

Define new connector node ID types for QEMU test input and output
classes, and add a QEMU gateway type. Also expose pipeline creation
and deletion functions globally to support testing in userspace.

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

Author: lrgirdwo

src/include/ipc4/gateway.h

@@ -80,6 +80,12 @@ enum ipc4_connector_node_id_type {
 	/**< SPI */
 	ipc4_spi_output_class = 25,
 	ipc4_spi_input_class = 26,
+
+	/**< QEMU test output (DSP ->). */
+	ipc4_qemu_output_class = 27,
+	/**< QEMU test input (DSP <-). */
+	ipc4_qemu_input_class = 28,
+
 	ipc4_max_connector_node_id_type
 };
 
@@ -209,7 +215,8 @@ enum ipc4_gateway_type {
 	ipc4_gtw_link	= BIT(3),
 	ipc4_gtw_alh	= BIT(4),
 	ipc4_gtw_ssp	= BIT(5),
-	ipc4_gtw_all	= BIT(6) - 1
+	ipc4_gtw_qemu	= BIT(6),
+	ipc4_gtw_all	= BIT(7) - 1
 };
 
 enum ipc4_direction_type {

src/include/ipc4/pipeline.h

@@ -453,4 +453,9 @@ struct ipc4_chain_dma {
 	} extension;
 } __attribute__((packed, aligned(4)));
 
+struct ipc4_message_request;
+
+int ipc4_new_pipeline(struct ipc4_message_request *ipc4);
+int ipc4_delete_pipeline(struct ipc4_message_request *ipc4);
+
 #endif

src/ipc/ipc4/handler.c

@@ -127,7 +127,7 @@ static inline const struct ipc4_pipeline_set_state_data *ipc4_get_pipeline_data(
 /*
  * Global IPC Operations.
  */
-__cold static int ipc4_new_pipeline(struct ipc4_message_request *ipc4)
+__cold int ipc4_new_pipeline(struct ipc4_message_request *ipc4)
 {
 	struct ipc *ipc = ipc_get();
 
@@ -136,7 +136,7 @@ __cold static int ipc4_new_pipeline(struct ipc4_message_request *ipc4)
 	return ipc_pipeline_new(ipc, (ipc_pipe_new *)ipc4);
 }
 
-__cold static int ipc4_delete_pipeline(struct ipc4_message_request *ipc4)
+__cold int ipc4_delete_pipeline(struct ipc4_message_request *ipc4)
 {
 	struct ipc4_pipeline_delete *pipe;
 	struct ipc *ipc = ipc_get();