[RFC PATCH 07/25] virtio-snd: Add properties for class init

[Shreyansh Chouhan <chouhan.shreyansh2702@gmail.com>]

Added properties and function stubs for virtio sound device class
init.

Signed-off-by: Shreyansh Chouhan <chouhan.shreyansh2702@gmail.com>
---
 hw/audio/Kconfig      |   5 ++
 hw/audio/meson.build  |   1 +
 hw/audio/virtio-snd.c | 126 ++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 132 insertions(+)
 create mode 100644 hw/audio/virtio-snd.c

diff --git a/hw/audio/Kconfig b/hw/audio/Kconfig
index e9c6fed826..d12df06699 100644
--- a/hw/audio/Kconfig
+++ b/hw/audio/Kconfig
@@ -50,3 +50,8 @@ config CS4231
 
 config MARVELL_88W8618
     bool
+
+config VIRTIO_SND
+    bool
+    default y
+    depends on VIRTIO
diff --git a/hw/audio/meson.build b/hw/audio/meson.build
index e48a9fc73d..455e6a1501 100644
--- a/hw/audio/meson.build
+++ b/hw/audio/meson.build
@@ -12,3 +12,4 @@ softmmu_ss.add(when: 'CONFIG_PL041', if_true: files('pl041.c', 'lm4549.c'))
 softmmu_ss.add(when: 'CONFIG_SB16', if_true: files('sb16.c'))
 softmmu_ss.add(when: 'CONFIG_VT82C686', if_true: files('via-ac97.c'))
 softmmu_ss.add(when: 'CONFIG_WM8750', if_true: files('wm8750.c'))
+softmmu_ss.add(when: 'CONFIG_VIRTIO_SND', if_true: files('virtio-snd.c'))
diff --git a/hw/audio/virtio-snd.c b/hw/audio/virtio-snd.c
new file mode 100644
index 0000000000..ae438aa7ec
--- /dev/null
+++ b/hw/audio/virtio-snd.c
@@ -0,0 +1,126 @@
+/*
+ * Virtio Sound device
+ */
+
+#include "qemu/osdep.h"
+#include "qemu/atomic.h"
+#include "qemu/iov.h"
+#include "qemu/main-loop.h"
+#include "qemu/module.h"
+#include "hw/virtio/virtio.h"
+#include "audio/audio.h"
+#include "qemu/error-report.h"
+#include "qemu/timer.h"
+#include "qemu/option.h"
+#include "qemu/option_int.h"
+#include "qemu/config-file.h"
+#include "qapi/qmp/qdict.h"
+#include "hw/virtio/virtio-snd.h"
+#include "hw/virtio/virtio-bus.h"
+#include "qapi/error.h"
+#include "qapi/qapi-events-audio.h"
+#include "hw/qdev-properties.h"
+#include "qapi/qapi-types-migration.h"
+#include "qapi/qapi-events-migration.h"
+#include "migration/misc.h"
+#include "standard-headers/linux/ethtool.h"
+#include "sysemu/sysemu.h"
+#include "trace.h"
+#include "monitor/qdev.h"
+#include "hw/pci/pci.h"
+#include "intel-hda-defs.h"
+
+#define VIRTIO_SOUND_VM_VERSION 1
+
+#define VIRTIO_SOUND_JACK_DEFAULT 0
+#define VIRTIO_SOUND_STREAM_DEFAULT 1
+#define VIRTIO_SOUND_CHMAP_DEFAULT 0
+
+#define VIRTIO_SOUND_HDA_FN_NID_OUT 0
+#define VIRTIO_SOUND_HDA_FN_NID_IN 1
+
+static void virtio_snd_get_config(VirtIODevice *vdev, uint8_t *config)
+{
+}
+
+static void virtio_snd_set_config(VirtIODevice *vdev, const uint8_t *config)
+{
+}
+
+static const VMStateDescription vmstate_virtio_snd_device = {
+    .name = "virtio-snd-device",
+    .version_id = VIRTIO_SOUND_VM_VERSION,
+    .minimum_version_id = VIRTIO_SOUND_VM_VERSION,
+};
+
+static const VMStateDescription vmstate_virtio_snd = {
+    .name = "virtio-sound",
+    .minimum_version_id = VIRTIO_SOUND_VM_VERSION,
+    .version_id = VIRTIO_SOUND_VM_VERSION,
+    .fields = (VMStateField[]) {
+        VMSTATE_VIRTIO_DEVICE,
+        VMSTATE_END_OF_LIST()
+    },
+};
+
+static Property virtio_snd_properties[] = {
+    DEFINE_AUDIO_PROPERTIES(VirtIOSound, card),
+    DEFINE_PROP_UINT32("jacks", VirtIOSound, snd_conf.jacks,
+                       VIRTIO_SOUND_JACK_DEFAULT),
+    DEFINE_PROP_UINT32("streams", VirtIOSound, snd_conf.streams,
+                       VIRTIO_SOUND_STREAM_DEFAULT),
+    DEFINE_PROP_UINT32("chmaps", VirtIOSound, snd_conf.chmaps,
+                       VIRTIO_SOUND_CHMAP_DEFAULT),
+    DEFINE_PROP_END_OF_LIST(),
+};
+
+static uint64_t virtio_snd_get_features(VirtIODevice *vdev, uint64_t features,
+                                        Error **errp)
+{
+    return vdev->host_features;
+}
+
+static void virtio_snd_device_realize(DeviceState *dev, Error **errp)
+{
+}
+
+static void virtio_snd_device_unrealize(DeviceState *dev)
+{
+}
+
+static void virtio_snd_reset(VirtIODevice *vdev)
+{
+}
+
+static void virtio_snd_class_init(ObjectClass *klass, void *data)
+{
+    DeviceClass *dc = DEVICE_CLASS(klass);
+    VirtioDeviceClass *vdc = VIRTIO_DEVICE_CLASS(klass);
+
+    device_class_set_props(dc, virtio_snd_properties);
+    dc->vmsd = &vmstate_virtio_snd;
+    set_bit(DEVICE_CATEGORY_SOUND, dc->categories);
+    vdc->realize = virtio_snd_device_realize;
+    vdc->unrealize = virtio_snd_device_unrealize;
+    vdc->get_config = virtio_snd_get_config;
+    vdc->set_config = virtio_snd_set_config;
+    vdc->get_features = virtio_snd_get_features;
+    vdc->reset = virtio_snd_reset;
+    vdc->legacy_features = 0;
+    vdc->vmsd = &vmstate_virtio_snd_device;
+}
+
+
+static const TypeInfo virtio_snd_dev_info = {
+    .name = TYPE_VIRTIO_SOUND,
+    .parent = TYPE_VIRTIO_DEVICE,
+    .instance_size = sizeof(VirtIOSound),
+    .class_init = virtio_snd_class_init,
+};
+
+static void virtio_register_types(void)
+{
+    type_register_static(&virtio_snd_dev_info);
+}
+
+type_init(virtio_register_types)
-- 
2.31.1