hexagonrpcd: interface: switch adsp_default_listener to interp4

The new interp4 definitions add support for more remote methods with
sequences of multi-byte data, sequences of sequences, plain integers
interleaved with sequences, and constant-size data other than 32-bit
integers. The new definitions are complex and can't fit in a simple
macro. Switch the chre_slpi interface to interp4, split it into a header
and source file, and update the users.

Signed-off-by: Richard Acayan <[email protected]>

Author: flamingradian

hexagonrpcd/interfaces.c renamed to hexagonrpcd/interface/adsp_default_listener.c

@@ -1,11 +1,11 @@
 /*
- * FastRPC interface list for building method definitions
+ * FastRPC reverse tunnel registration interface - method definitions
  *
- * Copyright (C) 2023 The Sensor Shell Contributors
+ * Copyright (C) 2025 HexagonRPC Contributors
  *
- * This file is part of sensh.
+ * This file is part of HexagonRPC.
  *
- * Sensh is free software: you can redistribute it and/or modify
+ * HexagonRPC is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
  * the Free Software Foundation, either version 3 of the License, or
  * (at your option) any later version.
@@ -19,6 +19,13 @@
  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 
-#define HEXAGONRPC_BUILD_METHOD_DEFINITIONS 1
+#include <stdint.h>
+#include <libhexagonrpc/hexagonrpc.h>
 
-#include "interfaces/adsp_default_listener.def"
+const struct hrpc_method_def_interp4 adsp_default_listener_register_def = {
+	.msg_id = 0,
+	.n_args = 0,
+	.args = NULL,
+	.n_inner_types = 0,
+	.inner_types = NULL,
+};

hexagonrpcd/interface/adsp_default_listener.h

@@ -0,0 +1,34 @@
+/*
+ * FastRPC reverse tunnel registration interface - API
+ *
+ * Copyright (C) 2025 HexagonRPC Contributors
+ *
+ * This file is part of HexagonRPC.
+ *
+ * HexagonRPC is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#ifndef INTERFACE_ADSP_DEFAULT_LISTENER_H
+#define INTERFACE_ADSP_DEFAULT_LISTENER_H
+
+#include <stdint.h>
+#include <libhexagonrpc/hexagonrpc.h>
+
+extern struct hrpc_method_def_interp4 adsp_default_listener_register_def;
+static inline int adsp_default_listener_register(int fd, uint32_t hdl)
+{
+	return hexagonrpc(&adsp_default_listener_register_def, fd, hdl);
+}
+
+#endif /* INTERFACE_ADSP_DEFAULT_LISTENER_H */

hexagonrpcd/interfaces/adsp_default_listener.def

@@ -1,7 +1,7 @@
 executable('hexagonrpcd',
   'apps_mem.c',
   'apps_std.c',
-  'interfaces.c',
+  'interface/adsp_default_listener.c',
   'interface/adsp_listener.c',
   'interface/apps_mem.c',
   'interface/apps_std.c',

hexagonrpcd/meson.build

@@ -22,7 +22,6 @@
 #include <errno.h>
 #include <fcntl.h>
 #include <libhexagonrpc/error.h>
-#include <libhexagonrpc/fastrpc.h>
 #include <libhexagonrpc/handle.h>
 #include <libhexagonrpc/interface/remotectl.h>
 #include <libhexagonrpc/session.h>
@@ -40,16 +39,11 @@
 #include "apps_mem.h"
 #include "apps_std.h"
 #include "hexagonfs.h"
-#include "interfaces/adsp_default_listener.def"
+#include "interface/adsp_default_listener.h"
 #include "listener.h"
 #include "localctl.h"
 #include "rpcd_builder.h"
 
-static int adsp_default_listener_register(int fd, uint32_t handle)
-{
-	return fastrpc2(&adsp_default_listener_register_def, fd, handle);
-}
-
 static int register_fastrpc_listener(int fd)
 {
 	uint32_t hdl;