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qemu/hw/audio/model.c

121 lines
3.7 KiB
C

/*
* QEMU System Emulator
*
* Copyright (c) 2003-2008 Fabrice Bellard
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include "qemu/osdep.h"
#include "hw/qdev-core.h"
#include "monitor/qdev.h"
#include "qemu/error-report.h"
#include "qapi/error.h"
#include "hw/qdev-properties.h"
#include "hw/audio/model.h"
struct audio_model {
const char *name;
const char *descr;
const char *typename;
void (*init)(const char *audiodev);
};
static struct audio_model audio_models[9];
static int audio_models_count;
void audio_register_model_with_cb(const char *name, const char *descr,
void (*init_audio_model)(const char *audiodev))
{
assert(audio_models_count < ARRAY_SIZE(audio_models) - 1);
audio_models[audio_models_count].name = name;
audio_models[audio_models_count].descr = descr;
audio_models[audio_models_count].init = init_audio_model;
audio_models_count++;
}
void audio_register_model(const char *name, const char *descr,
const char *typename)
{
assert(audio_models_count < ARRAY_SIZE(audio_models) - 1);
audio_models[audio_models_count].name = name;
audio_models[audio_models_count].descr = descr;
audio_models[audio_models_count].typename = typename;
audio_models_count++;
}
void audio_print_available_models(void)
{
struct audio_model *c;
if (audio_models_count) {
printf("Valid audio device model names:\n");
for (c = audio_models; c->name; ++c) {
printf("%-11s %s\n", c->name, c->descr);
}
} else {
printf("Machine has no user-selectable audio hardware "
"(it may or may not have always-present audio hardware).\n");
}
}
static struct audio_model *selected;
static const char *audiodev_id;
void audio_set_model(const char *name, const char *audiodev)
{
struct audio_model *c;
if (selected) {
error_report("only one -audio option is allowed");
exit(1);
}
for (c = audio_models; c->name; ++c) {
if (g_str_equal(c->name, name)) {
selected = c;
audiodev_id = audiodev;
break;
}
}
if (!c->name) {
error_report("Unknown audio device model `%s'", name);
audio_print_available_models();
exit(1);
}
}
void audio_model_init(void)
{
struct audio_model *c = selected;
if (!c) {
return;
}
if (c->typename) {
DeviceState *dev = qdev_new(c->typename);
BusState *bus = qdev_find_default_bus(DEVICE_GET_CLASS(dev), &error_fatal);
qdev_prop_set_string(dev, "audiodev", audiodev_id);
qdev_realize_and_unref(dev, bus, &error_fatal);
} else {
c->init(audiodev_id);
}
}