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modules: use gmodule-export.

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audio: add driver registry, enable module builds.
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Merge remote-tracking branch 'remotes/kraxel/tags/audio-20180312-pull-request' into staging

modules: use gmodule-export.
audio: add driver registry, enable module builds.

# gpg: Signature made Mon 12 Mar 2018 10:42:19 GMT
# gpg:                using RSA key 4CB6D8EED3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>"
# gpg:                 aka "Gerd Hoffmann <gerd@kraxel.org>"
# gpg:                 aka "Gerd Hoffmann (private) <kraxel@gmail.com>"
# Primary key fingerprint: A032 8CFF B93A 17A7 9901  FE7D 4CB6 D8EE D3E8 7138

* remotes/kraxel/tags/audio-20180312-pull-request:
  audio/sdl: build as module
  audio/pulseaudio: build as module
  audio/oss: build as module
  audio/alsa: build as module
  build: enable audio modules
  audio: add module loading support
  audio: add driver registry
  modules: use gmodule-export

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Peter Maydell 2018-03-12 16:14:37 +00:00
commit 6ceb1b51f0
17 changed files with 160 additions and 56 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
Makefile
View File

@ -425,6 +425,10 @@ dummy := $(call unnest-vars,, \
io-obj-y \
common-obj-y \
common-obj-m \
ui-obj-y \
ui-obj-m \
audio-obj-y \
audio-obj-m \
trace-obj-y)
include $(SRC_PATH)/tests/Makefile.include

1
Makefile.objs
View File

@ -104,6 +104,7 @@ common-obj-$(CONFIG_LINUX) += fsdev/
common-obj-y += migration/
common-obj-y += audio/
common-obj-m += audio/
common-obj-y += hw/
common-obj-y += replay/

30
audio/Makefile.objs
View File

@ -1,19 +1,31 @@
common-obj-y = audio.o noaudio.o wavaudio.o mixeng.o
common-obj-$(CONFIG_AUDIO_SDL) += sdlaudio.o
common-obj-$(CONFIG_AUDIO_OSS) += ossaudio.o
common-obj-$(CONFIG_SPICE) += spiceaudio.o
common-obj-$(CONFIG_AUDIO_COREAUDIO) += coreaudio.o
common-obj-$(CONFIG_AUDIO_ALSA) += alsaaudio.o
common-obj-$(CONFIG_AUDIO_DSOUND) += dsoundaudio.o
common-obj-$(CONFIG_AUDIO_PA) += paaudio.o
common-obj-$(CONFIG_AUDIO_PT_INT) += audio_pt_int.o
common-obj-$(CONFIG_AUDIO_WIN_INT) += audio_win_int.o
common-obj-y += wavcapture.o
sdlaudio.o-cflags := $(SDL_CFLAGS)
sdlaudio.o-libs := $(SDL_LIBS)
alsaaudio.o-libs := $(ALSA_LIBS)
paaudio.o-libs := $(PULSE_LIBS)
coreaudio.o-libs := $(COREAUDIO_LIBS)
dsoundaudio.o-libs := $(DSOUND_LIBS)
ossaudio.o-libs := $(OSS_LIBS)
# alsa module
common-obj-$(CONFIG_AUDIO_ALSA) += alsa.mo
alsa.mo-objs = alsaaudio.o
alsa.mo-libs := $(ALSA_LIBS)
# oss module
common-obj-$(CONFIG_AUDIO_OSS) += oss.mo
oss.mo-objs = ossaudio.o
oss.mo-libs := $(OSS_LIBS)
# pulseaudio module
common-obj-$(CONFIG_AUDIO_PA) += pa.mo
pa.mo-objs = paaudio.o
pa.mo-libs := $(PULSE_LIBS)
# sdl module
common-obj-$(CONFIG_AUDIO_SDL) += sdl.mo
sdl.mo-objs = sdlaudio.o
sdl.mo-cflags := $(SDL_CFLAGS)
sdl.mo-libs := $(SDL_LIBS)

8
audio/alsaaudio.c
View File

@ -1213,7 +1213,7 @@ static struct audio_pcm_ops alsa_pcm_ops = {
.ctl_in = alsa_ctl_in,
};
struct audio_driver alsa_audio_driver = {
static struct audio_driver alsa_audio_driver = {
.name = "alsa",
.descr = "ALSA http://www.alsa-project.org",
.options = alsa_options,
@ -1226,3 +1226,9 @@ struct audio_driver alsa_audio_driver = {
.voice_size_out = sizeof (ALSAVoiceOut),
.voice_size_in = sizeof (ALSAVoiceIn)
};
static void register_audio_alsa(void)
{
audio_driver_register(&alsa_audio_driver);
}
type_init(register_audio_alsa);

83
audio/audio.c
View File

@ -45,15 +45,49 @@
The 1st one is the one used by default, that is the reason
that we generate the list.
*/
static struct audio_driver *drvtab[] = {
#ifdef CONFIG_SPICE
&spice_audio_driver,
#endif
static const char *audio_prio_list[] = {
"spice",
CONFIG_AUDIO_DRIVERS
&no_audio_driver,
&wav_audio_driver
"none",
"wav",
};
static QLIST_HEAD(, audio_driver) audio_drivers;
void audio_driver_register(audio_driver *drv)
{
QLIST_INSERT_HEAD(&audio_drivers, drv, next);
}
audio_driver *audio_driver_lookup(const char *name)
{
struct audio_driver *d;
QLIST_FOREACH(d, &audio_drivers, next) {
if (strcmp(name, d->name) == 0) {
return d;
}
}
audio_module_load_one(name);
QLIST_FOREACH(d, &audio_drivers, next) {
if (strcmp(name, d->name) == 0) {
return d;
}
}
return NULL;
}
static void audio_module_load_all(void)
{
int i;
for (i = 0; i < ARRAY_SIZE(audio_prio_list); i++) {
audio_driver_lookup(audio_prio_list[i]);
}
}
struct fixed_settings {
int enabled;
int nb_voices;
@ -1656,11 +1690,13 @@ static void audio_pp_nb_voices (const char *typ, int nb)
void AUD_help (void)
{
size_t i;
struct audio_driver *d;
/* make sure we print the help text for modular drivers too */
audio_module_load_all();
audio_process_options ("AUDIO", audio_options);
for (i = 0; i < ARRAY_SIZE (drvtab); i++) {
struct audio_driver *d = drvtab[i];
QLIST_FOREACH(d, &audio_drivers, next) {
if (d->options) {
audio_process_options (d->name, d->options);
}
@ -1672,8 +1708,7 @@ void AUD_help (void)
printf ("Available drivers:\n");
for (i = 0; i < ARRAY_SIZE (drvtab); i++) {
struct audio_driver *d = drvtab[i];
QLIST_FOREACH(d, &audio_drivers, next) {
printf ("Name: %s\n", d->name);
printf ("Description: %s\n", d->descr);
@ -1807,6 +1842,7 @@ static void audio_init (void)
const char *drvname;
VMChangeStateEntry *e;
AudioState *s = &glob_audio_state;
struct audio_driver *driver;
if (s->drv) {
return;
@ -1842,32 +1878,27 @@ static void audio_init (void)
}
if (drvname) {
int found = 0;
for (i = 0; i < ARRAY_SIZE (drvtab); i++) {
if (!strcmp (drvname, drvtab[i]->name)) {
done = !audio_driver_init (s, drvtab[i]);
found = 1;
break;
}
}
if (!found) {
driver = audio_driver_lookup(drvname);
if (driver) {
done = !audio_driver_init(s, driver);
} else {
dolog ("Unknown audio driver `%s'\n", drvname);
dolog ("Run with -audio-help to list available drivers\n");
}
}
if (!done) {
for (i = 0; !done && i < ARRAY_SIZE (drvtab); i++) {
if (drvtab[i]->can_be_default) {
done = !audio_driver_init (s, drvtab[i]);
for (i = 0; !done && i < ARRAY_SIZE(audio_prio_list); i++) {
driver = audio_driver_lookup(audio_prio_list[i]);
if (driver && driver->can_be_default) {
done = !audio_driver_init(s, driver);
}
}
}
if (!done) {
done = !audio_driver_init (s, &no_audio_driver);
driver = audio_driver_lookup("none");
done = !audio_driver_init(s, driver);
assert(done);
dolog("warning: Using timer based audio emulation\n");
}

14
audio/audio_int.h
View File

@ -141,6 +141,7 @@ struct SWVoiceIn {
QLIST_ENTRY (SWVoiceIn) entries;
};
typedef struct audio_driver audio_driver;
struct audio_driver {
const char *name;
const char *descr;
@ -154,6 +155,7 @@ struct audio_driver {
int voice_size_out;
int voice_size_in;
int ctl_caps;
QLIST_ENTRY(audio_driver) next;
};
struct audio_pcm_ops {
@ -203,17 +205,11 @@ struct AudioState {
int vm_running;
};
extern struct audio_driver no_audio_driver;
extern struct audio_driver oss_audio_driver;
extern struct audio_driver sdl_audio_driver;
extern struct audio_driver wav_audio_driver;
extern struct audio_driver alsa_audio_driver;
extern struct audio_driver coreaudio_audio_driver;
extern struct audio_driver dsound_audio_driver;
extern struct audio_driver pa_audio_driver;
extern struct audio_driver spice_audio_driver;
extern const struct mixeng_volume nominal_volume;
void audio_driver_register(audio_driver *drv);
audio_driver *audio_driver_lookup(const char *name);
void audio_pcm_init_info (struct audio_pcm_info *info, struct audsettings *as);
void audio_pcm_info_clear_buf (struct audio_pcm_info *info, void *buf, int len);

8
audio/coreaudio.c
View File

@ -722,7 +722,7 @@ static struct audio_pcm_ops coreaudio_pcm_ops = {
.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 @@ struct audio_driver coreaudio_audio_driver = {
.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);

8
audio/dsoundaudio.c
View File

@ -890,7 +890,7 @@ static struct audio_pcm_ops dsound_pcm_ops = {
.ctl_in = dsound_ctl_in
};
struct audio_driver dsound_audio_driver = {
static struct audio_driver dsound_audio_driver = {
.name = "dsound",
.descr = "DirectSound http://wikipedia.org/wiki/DirectSound",
.options = dsound_options,
@ -903,3 +903,9 @@ struct audio_driver dsound_audio_driver = {
.voice_size_out = sizeof (DSoundVoiceOut),
.voice_size_in = sizeof (DSoundVoiceIn)
};
static void register_audio_dsound(void)
{
audio_driver_register(&dsound_audio_driver);
}
type_init(register_audio_dsound);

8
audio/noaudio.c
View File

@ -160,7 +160,7 @@ static struct audio_pcm_ops no_pcm_ops = {
.ctl_in = no_ctl_in
};
struct audio_driver no_audio_driver = {
static struct audio_driver no_audio_driver = {
.name = "none",
.descr = "Timer based audio emulation",
.options = NULL,
@ -173,3 +173,9 @@ struct audio_driver no_audio_driver = {
.voice_size_out = sizeof (NoVoiceOut),
.voice_size_in = sizeof (NoVoiceIn)
};
static void register_audio_none(void)
{
audio_driver_register(&no_audio_driver);
}
type_init(register_audio_none);

8
audio/ossaudio.c
View File

@ -922,7 +922,7 @@ static struct audio_pcm_ops oss_pcm_ops = {
.ctl_in = oss_ctl_in
};
struct audio_driver oss_audio_driver = {
static struct audio_driver oss_audio_driver = {
.name = "oss",
.descr = "OSS http://www.opensound.com",
.options = oss_options,
@ -935,3 +935,9 @@ struct audio_driver oss_audio_driver = {
.voice_size_out = sizeof (OSSVoiceOut),
.voice_size_in = sizeof (OSSVoiceIn)
};
static void register_audio_oss(void)
{
audio_driver_register(&oss_audio_driver);
}
type_init(register_audio_oss);

8
audio/paaudio.c
View File

@ -937,7 +937,7 @@ static struct audio_pcm_ops qpa_pcm_ops = {
.ctl_in = qpa_ctl_in
};
struct audio_driver pa_audio_driver = {
static struct audio_driver pa_audio_driver = {
.name = "pa",
.descr = "http://www.pulseaudio.org/",
.options = qpa_options,
@ -951,3 +951,9 @@ struct audio_driver pa_audio_driver = {
.voice_size_in = sizeof (PAVoiceIn),
.ctl_caps = VOICE_VOLUME_CAP
};
static void register_audio_pa(void)
{
audio_driver_register(&pa_audio_driver);
}
type_init(register_audio_pa);

8
audio/sdlaudio.c
View File

@ -500,7 +500,7 @@ static struct audio_pcm_ops sdl_pcm_ops = {
.ctl_out = sdl_ctl_out,
};
struct audio_driver sdl_audio_driver = {
static struct audio_driver sdl_audio_driver = {
.name = "sdl",
.descr = "SDL http://www.libsdl.org",
.options = sdl_options,
@ -513,3 +513,9 @@ struct audio_driver sdl_audio_driver = {
.voice_size_out = sizeof (SDLVoiceOut),
.voice_size_in = 0
};
static void register_audio_sdl(void)
{
audio_driver_register(&sdl_audio_driver);
}
type_init(register_audio_sdl);

8
audio/spiceaudio.c
View File

@ -391,7 +391,7 @@ static struct audio_pcm_ops audio_callbacks = {
.ctl_in = line_in_ctl,
};
struct audio_driver spice_audio_driver = {
static struct audio_driver spice_audio_driver = {
.name = "spice",
.descr = "spice audio driver",
.options = audio_options,
@ -411,3 +411,9 @@ void qemu_spice_audio_init (void)
{
spice_audio_driver.can_be_default = 1;
}
static void register_audio_spice(void)
{
audio_driver_register(&spice_audio_driver);
}
type_init(register_audio_spice);

8
audio/wavaudio.c
View File

@ -278,7 +278,7 @@ static struct audio_pcm_ops wav_pcm_ops = {
.ctl_out = wav_ctl_out,
};
struct audio_driver wav_audio_driver = {
static struct audio_driver wav_audio_driver = {
.name = "wav",
.descr = "WAV renderer http://wikipedia.org/wiki/WAV",
.options = wav_options,
@ -291,3 +291,9 @@ struct audio_driver wav_audio_driver = {
.voice_size_out = sizeof (WAVVoiceOut),
.voice_size_in = 0
};
static void register_audio_wav(void)
{
audio_driver_register(&wav_audio_driver);
}
type_init(register_audio_wav);

9
configure vendored
View File

@ -3354,7 +3354,7 @@ else
fi
glib_modules=gthread-2.0
if test "$modules" = yes; then
glib_modules="$glib_modules gmodule-2.0"
glib_modules="$glib_modules gmodule-export-2.0"
fi
# This workaround is required due to a bug in pkg-config file for glib as it
@ -5974,7 +5974,12 @@ fi
echo "CONFIG_AUDIO_DRIVERS=$audio_drv_list" >> $config_host_mak
for drv in $audio_drv_list; do
def=CONFIG_AUDIO_$(echo $drv | LC_ALL=C tr '[a-z]' '[A-Z]')
echo "$def=y" >> $config_host_mak
case "$drv" in
alsa | oss | pa | sdl)
echo "$def=m" >> $config_host_mak ;;
*)
echo "$def=y" >> $config_host_mak ;;
esac
done
echo "ALSA_LIBS=$alsa_libs" >> $config_host_mak
echo "PULSE_LIBS=$pulse_libs" >> $config_host_mak

1
include/qemu/module.h
View File

@ -54,6 +54,7 @@ typedef enum {
#define block_module_load_one(lib) module_load_one("block-", lib)
#define ui_module_load_one(lib) module_load_one("ui-", lib)
#define audio_module_load_one(lib) module_load_one("audio-", lib)
void register_module_init(void (*fn)(void), module_init_type type);
void register_dso_module_init(void (*fn)(void), module_init_type type);

2
scripts/create_config
View File

@ -36,7 +36,7 @@ case $line in
drivers=${line#*=}
echo "#define CONFIG_AUDIO_DRIVERS \\"
for drv in $drivers; do
echo " &${drv}_audio_driver,\\"
echo " \"${drv}\",\\"
done
echo ""
;;