124269085SManos Pitsidianakis /*
224269085SManos Pitsidianakis * VIRTIO Sound Device PCI Bindings
324269085SManos Pitsidianakis *
424269085SManos Pitsidianakis * Copyright (c) 2023 Emmanouil Pitsidianakis <manos.pitsidianakis@linaro.org>
524269085SManos Pitsidianakis *
624269085SManos Pitsidianakis * This work is licensed under the terms of the GNU GPL, version 2 or
724269085SManos Pitsidianakis * (at your option) any later version. See the COPYING file in the
824269085SManos Pitsidianakis * top-level directory.
924269085SManos Pitsidianakis */
1024269085SManos Pitsidianakis
1124269085SManos Pitsidianakis #include "qemu/osdep.h"
1224269085SManos Pitsidianakis #include "qom/object.h"
1324269085SManos Pitsidianakis #include "qapi/error.h"
1424269085SManos Pitsidianakis #include "hw/audio/soundhw.h"
1524269085SManos Pitsidianakis #include "hw/virtio/virtio-pci.h"
1624269085SManos Pitsidianakis #include "hw/audio/virtio-snd.h"
1724269085SManos Pitsidianakis
1824269085SManos Pitsidianakis /*
1924269085SManos Pitsidianakis * virtio-snd-pci: This extends VirtioPCIProxy.
2024269085SManos Pitsidianakis */
2124269085SManos Pitsidianakis #define TYPE_VIRTIO_SND_PCI "virtio-sound-pci"
2224269085SManos Pitsidianakis OBJECT_DECLARE_SIMPLE_TYPE(VirtIOSoundPCI, VIRTIO_SND_PCI)
2324269085SManos Pitsidianakis
2424269085SManos Pitsidianakis struct VirtIOSoundPCI {
2524269085SManos Pitsidianakis VirtIOPCIProxy parent_obj;
2624269085SManos Pitsidianakis
2724269085SManos Pitsidianakis VirtIOSound vdev;
2824269085SManos Pitsidianakis };
2924269085SManos Pitsidianakis
30ed1e71daSRichard Henderson static const Property virtio_snd_pci_properties[] = {
3124269085SManos Pitsidianakis DEFINE_PROP_BIT("ioeventfd", VirtIOPCIProxy, flags,
3224269085SManos Pitsidianakis VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT, true),
3324269085SManos Pitsidianakis DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, 2),
3424269085SManos Pitsidianakis };
3524269085SManos Pitsidianakis
virtio_snd_pci_realize(VirtIOPCIProxy * vpci_dev,Error ** errp)3624269085SManos Pitsidianakis static void virtio_snd_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp)
3724269085SManos Pitsidianakis {
3824269085SManos Pitsidianakis VirtIOSoundPCI *dev = VIRTIO_SND_PCI(vpci_dev);
3924269085SManos Pitsidianakis DeviceState *vdev = DEVICE(&dev->vdev);
4024269085SManos Pitsidianakis
4124269085SManos Pitsidianakis virtio_pci_force_virtio_1(vpci_dev);
4224269085SManos Pitsidianakis qdev_realize(vdev, BUS(&vpci_dev->bus), errp);
4324269085SManos Pitsidianakis }
4424269085SManos Pitsidianakis
virtio_snd_pci_class_init(ObjectClass * klass,const void * data)45*12d1a768SPhilippe Mathieu-Daudé static void virtio_snd_pci_class_init(ObjectClass *klass, const void *data)
4624269085SManos Pitsidianakis {
4724269085SManos Pitsidianakis DeviceClass *dc = DEVICE_CLASS(klass);
4824269085SManos Pitsidianakis VirtioPCIClass *vpciklass = VIRTIO_PCI_CLASS(klass);
49c44f4263SVolker Rümelin PCIDeviceClass *pcidevklass = PCI_DEVICE_CLASS(klass);
5024269085SManos Pitsidianakis
5124269085SManos Pitsidianakis device_class_set_props(dc, virtio_snd_pci_properties);
5224269085SManos Pitsidianakis dc->desc = "Virtio Sound";
5324269085SManos Pitsidianakis set_bit(DEVICE_CATEGORY_SOUND, dc->categories);
5424269085SManos Pitsidianakis
5524269085SManos Pitsidianakis vpciklass->realize = virtio_snd_pci_realize;
56c44f4263SVolker Rümelin pcidevklass->class_id = PCI_CLASS_MULTIMEDIA_AUDIO;
5724269085SManos Pitsidianakis }
5824269085SManos Pitsidianakis
virtio_snd_pci_instance_init(Object * obj)5924269085SManos Pitsidianakis static void virtio_snd_pci_instance_init(Object *obj)
6024269085SManos Pitsidianakis {
6124269085SManos Pitsidianakis VirtIOSoundPCI *dev = VIRTIO_SND_PCI(obj);
6224269085SManos Pitsidianakis
6324269085SManos Pitsidianakis virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
6424269085SManos Pitsidianakis TYPE_VIRTIO_SND);
6524269085SManos Pitsidianakis }
6624269085SManos Pitsidianakis
6724269085SManos Pitsidianakis static const VirtioPCIDeviceTypeInfo virtio_snd_pci_info = {
6824269085SManos Pitsidianakis .generic_name = TYPE_VIRTIO_SND_PCI,
6924269085SManos Pitsidianakis .instance_size = sizeof(VirtIOSoundPCI),
7024269085SManos Pitsidianakis .instance_init = virtio_snd_pci_instance_init,
7124269085SManos Pitsidianakis .class_init = virtio_snd_pci_class_init,
7224269085SManos Pitsidianakis };
7324269085SManos Pitsidianakis
7424269085SManos Pitsidianakis /* Create a Virtio Sound PCI device, so '-audio driver,model=virtio' works. */
virtio_snd_pci_init(PCIBus * bus,const char * audiodev)7524269085SManos Pitsidianakis static int virtio_snd_pci_init(PCIBus *bus, const char *audiodev)
7624269085SManos Pitsidianakis {
7724269085SManos Pitsidianakis DeviceState *vdev = NULL;
7824269085SManos Pitsidianakis VirtIOSoundPCI *dev = NULL;
7924269085SManos Pitsidianakis
8024269085SManos Pitsidianakis vdev = qdev_new(TYPE_VIRTIO_SND_PCI);
8124269085SManos Pitsidianakis assert(vdev);
8224269085SManos Pitsidianakis dev = VIRTIO_SND_PCI(vdev);
8324269085SManos Pitsidianakis qdev_prop_set_string(DEVICE(&dev->vdev), "audiodev", audiodev);
8424269085SManos Pitsidianakis qdev_realize_and_unref(vdev, BUS(bus), &error_fatal);
8524269085SManos Pitsidianakis return 0;
8624269085SManos Pitsidianakis }
8724269085SManos Pitsidianakis
virtio_snd_pci_register(void)8824269085SManos Pitsidianakis static void virtio_snd_pci_register(void)
8924269085SManos Pitsidianakis {
9024269085SManos Pitsidianakis virtio_pci_types_register(&virtio_snd_pci_info);
9124269085SManos Pitsidianakis pci_register_soundhw("virtio", "Virtio Sound", virtio_snd_pci_init);
9224269085SManos Pitsidianakis }
9324269085SManos Pitsidianakis
9424269085SManos Pitsidianakis type_init(virtio_snd_pci_register);
95