audio: add driver registry
Add registry for audio drivers, using the existing audio_driver struct.
Make all drivers register themself. The old list of audio_driver struct
pointers is now a list of audio driver names, specifying the priority
(aka probe order) in case no driver is explicitly asked for.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-id: 20180306074053.22856-2-kraxel@redhat.com
diff --git a/audio/coreaudio.c b/audio/coreaudio.c
index c751420..638c60b 100644
--- a/audio/coreaudio.c
+++ b/audio/coreaudio.c
@@ -722,7 +722,7 @@
.ctl_out = coreaudio_ctl_out
};
-struct audio_driver coreaudio_audio_driver = {
+static struct audio_driver coreaudio_audio_driver = {
.name = "coreaudio",
.descr = "CoreAudio http://developer.apple.com/audio/coreaudio.html",
.options = coreaudio_options,
@@ -735,3 +735,9 @@
.voice_size_out = sizeof (coreaudioVoiceOut),
.voice_size_in = 0
};
+
+static void register_audio_coreaudio(void)
+{
+ audio_driver_register(&coreaudio_audio_driver);
+}
+type_init(register_audio_coreaudio);