[Qemu-devel] [PATCH v2 26/49] audio: audiodev= parameters no longer optional when -audiodev present

[Kővágó, Zoltán]

Reviewed-by: Marc-André Lureau <marcandre.lur...@redhat.com>
Signed-off-by: Kővágó, Zoltán <dirty.ice...@gmail.com>

---

Changes from v1:
* (probably) more clear error messages

 audio/audio.c | 19 ++++++++++++++-----
 1 file changed, 14 insertions(+), 5 deletions(-)

diff --git a/audio/audio.c b/audio/audio.c
index 88e04bf..d7e0533 100644
--- a/audio/audio.c
+++ b/audio/audio.c
@@ -69,6 +69,8 @@ const struct mixeng_volume nominal_volume = {
 #endif
 };
 
+static bool legacy_config;
+
 #ifdef AUDIO_IS_FLAWLESS_AND_NO_CHECKS_ARE_REQURIED
 #error No its not
 #else
@@ -1318,7 +1320,7 @@ static Audiodev *parse_option(QemuOpts *opts, Error 
**errp);
  *   initialize a new state with it
  * if dev == NULL => legacy implicit initialization, return the already created
  *   state or create a new one */
-static AudioState *audio_init(Audiodev *dev)
+static AudioState *audio_init(Audiodev *dev, const char *name)
 {
     static bool atexit_registered;
     size_t i;
@@ -1332,9 +1334,13 @@ static AudioState *audio_init(Audiodev *dev)
     if (dev) {
         drvname = AudiodevDriver_lookup[dev->kind];
     } else if (!QTAILQ_EMPTY(&audio_states)) {
-        /* todo: chack for -audiodev we have normal audiodev selection support 
*/
+        if (!legacy_config) {
+            dolog("You must specify an audiodev= for the device %s\n", name);
+            exit(1);
+        }
         return QTAILQ_FIRST(&audio_states);
     } else {
+        legacy_config = true;
         audio_handle_legacy_opts();
         list = qemu_find_opts("audiodev");
         dev = parse_option(QTAILQ_FIRST(&list->head), &error_abort);
@@ -1440,7 +1446,7 @@ static AudioState *audio_init(Audiodev *dev)
 void AUD_register_card (const char *name, QEMUSoundCard *card)
 {
     if (!card->state) {
-        card->state = audio_init(NULL);
+        card->state = audio_init(NULL, name);
     }
 
     card->name = g_strdup (name);
@@ -1466,7 +1472,10 @@ CaptureVoiceOut *AUD_add_capture(
     struct capture_callback *cb;
 
     if (!s) {
-        /* todo: remove when we have normal audiodev selection support */
+        if (!legacy_config) {
+            dolog("You must specify audiodev when trying to capture\n");
+            goto err0;
+        }
         s = QTAILQ_FIRST(&audio_states);
     }
 
@@ -1705,7 +1714,7 @@ static int each_option(void *opaque, QemuOpts *opts, 
Error **errp)
     if (!dev) {
         return -1;
     }
-    return audio_init(dev) ? 0 : -1;
+    return audio_init(dev, NULL) ? 0 : -1;
 }
 
 void audio_set_options(void)
-- 
2.5.0