userspace: split ipc files into user and kernel features

src/include/ipc4/handler.h

@@ -0,0 +1,54 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Copyright(c) 2026 Intel Corporation.
+ */
+
+#ifndef __SOF_IPC4_HANDLER_H__
+#define __SOF_IPC4_HANDLER_H__
+
+struct ipc4_message_request;
+
+/**
+ * \brief Processes IPC4 userspace module message.
+ * @param[in] ipc4 IPC4 message request.
+ * @param[in] reply IPC message reply structure.
+ * @return IPC4_SUCCESS on success, error code otherwise.
+ */
+int ipc4_user_process_module_message(struct ipc4_message_request *ipc4, struct ipc_msg *reply);
+
+/**
+ * \brief Processes IPC4 userspace global message.
+ * @param[in] ipc4 IPC4 message request.
+ * @param[in] reply IPC message reply structure.
+ * @return IPC4_SUCCESS on success, error code otherwise.
+ */
+int ipc4_user_process_glb_message(struct ipc4_message_request *ipc4, struct ipc_msg *reply);
+
+/**
+ * \brief Increment the IPC compound message pre-start counter.
+ * @param[in] msg_id IPC message ID.
+ */
+void ipc_compound_pre_start(int msg_id);
+
+/**
+ * \brief Decrement the IPC compound message pre-start counter on return value status.
+ * @param[in] msg_id IPC message ID.
+ * @param[in] ret Return value of the IPC command.
+ * @param[in] delayed True if the reply is delayed.
+ */
+void ipc_compound_post_start(uint32_t msg_id, int ret, bool delayed);
+
+/**
+ * \brief Complete the IPC compound message.
+ * @param[in] msg_id IPC message ID.
+ * @param[in] error Error code of the IPC command.
+ */
+void ipc_compound_msg_done(uint32_t msg_id, int error);
+
+/**
+ * \brief Wait for the IPC compound message to complete.
+ * @return 0 on success, error code otherwise on timeout.
+ */
+int ipc_wait_for_compound_msg(void);
+
+#endif /* __SOF_IPC4_HANDLER_H__ */

src/ipc/ipc4/CMakeLists.txt

@@ -3,7 +3,8 @@
 # Files common to Zephyr and XTOS
 add_local_sources(sof
 	dai.c
-	handler.c
+	handler-user.c
+	handler-kernel.c
 	helper.c
 	logging.c
 	notification.c