control: remap plugin - initial version

Signed-off-by: Jaroslav Kysela <perex@perex.cz>

configure.ac

@@ -659,7 +659,7 @@ AC_ARG_WITH(ctl-plugins,
     [build control plugins (default = all)]),
   [ctl_plugins="$withval"], [ctl_plugins="all"])
 
-CTL_PLUGIN_LIST="shm ext"
+CTL_PLUGIN_LIST="remap shm ext"
 
 build_ctl_plugin="no"
 for t in $CTL_PLUGIN_LIST; do
@@ -681,6 +681,7 @@ if test "$ac_cv_header_sys_shm_h" != "yes"; then
 fi
 
 AM_CONDITIONAL([BUILD_CTL_PLUGIN], [test x$build_ctl_plugin = xyes])
+AM_CONDITIONAL([BUILD_CTL_PLUGIN_REMAP], [test x$build_ctl_remap = xyes])
 AM_CONDITIONAL([BUILD_CTL_PLUGIN_SHM], [test x$build_ctl_shm = xyes])
 AM_CONDITIONAL([BUILD_CTL_PLUGIN_EXT], [test x$build_ctl_ext = xyes])
 

include/control.h

@@ -312,7 +312,9 @@ typedef enum _snd_ctl_type {
 	/** INET client CTL (not yet implemented) */
 	SND_CTL_TYPE_INET,
 	/** External control plugin */
-	SND_CTL_TYPE_EXT
+	SND_CTL_TYPE_EXT,
+	/** Control functionality remapping */
+	SND_CTL_TYPE_REMAP,
 } snd_ctl_type_t;
 
 /** Non blocking mode (flag for open mode) \hideinitializer */

src/control/Makefile.am

@@ -3,6 +3,9 @@ EXTRA_LTLIBRARIES = libcontrol.la
 libcontrol_la_SOURCES = cards.c tlv.c namehint.c hcontrol.c \
                         control.c control_hw.c setup.c ctlparse.c \
                         control_symbols.c
+if BUILD_CTL_PLUGIN_REMAP
+libcontrol_la_SOURCES += control_remap.c
+endif
 if BUILD_CTL_PLUGIN_SHM
 libcontrol_la_SOURCES += control_shm.c
 endif

src/control/control.c

@@ -1345,7 +1345,7 @@ snd_ctl_t *snd_async_handler_get_ctl(snd_async_handler_t *handler)
 }
 
 static const char *const build_in_ctls[] = {
-	"hw", "shm", NULL
+	"hw", "remap", "shm", NULL
 };
 
 static int snd_ctl_open_conf(snd_ctl_t **ctlp, const char *name,

src/control/control_symbols.c

@@ -21,6 +21,7 @@
 #ifndef PIC
 
 extern const char *_snd_module_control_hw;
+extern const char *_snd_module_control_remap;
 extern const char *_snd_module_control_shm;
 extern const char *_snd_module_control_ext;