diff options
| -rw-r--r-- | MAINTAINERS | 1 | ||||
| -rw-r--r-- | hw/audio/meson.build | 1 | ||||
| -rw-r--r-- | hw/audio/virtio-snd-pci.c | 93 | ||||
| -rw-r--r-- | system/qdev-monitor.c | 1 |
4 files changed, 96 insertions, 0 deletions
diff --git a/MAINTAINERS b/MAINTAINERS index d3ee463..c09bb8c 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -2315,6 +2315,7 @@ M: Gerd Hoffmann <kraxel@redhat.com> R: Manos Pitsidianakis <manos.pitsidianakis@linaro.org> S: Supported F: hw/audio/virtio-snd.c +F: hw/audio/virtio-snd-pci.c F: include/hw/audio/virtio-snd.h nvme diff --git a/hw/audio/meson.build b/hw/audio/meson.build index 7a503be..2990974 100644 --- a/hw/audio/meson.build +++ b/hw/audio/meson.build @@ -14,3 +14,4 @@ system_ss.add(when: 'CONFIG_SB16', if_true: files('sb16.c')) system_ss.add(when: 'CONFIG_VT82C686', if_true: files('via-ac97.c')) system_ss.add(when: 'CONFIG_WM8750', if_true: files('wm8750.c')) system_ss.add(when: ['CONFIG_VIRTIO_SND', 'CONFIG_VIRTIO'], if_true: files('virtio-snd.c')) +system_ss.add(when: ['CONFIG_VIRTIO_SND', 'CONFIG_VIRTIO', 'CONFIG_VIRTIO_PCI'], if_true: files('virtio-snd-pci.c')) diff --git a/hw/audio/virtio-snd-pci.c b/hw/audio/virtio-snd-pci.c new file mode 100644 index 0000000..0f92e07 --- /dev/null +++ b/hw/audio/virtio-snd-pci.c @@ -0,0 +1,93 @@ +/* + * VIRTIO Sound Device PCI Bindings + * + * Copyright (c) 2023 Emmanouil Pitsidianakis <manos.pitsidianakis@linaro.org> + * + * This work is licensed under the terms of the GNU GPL, version 2 or + * (at your option) any later version. See the COPYING file in the + * top-level directory. + */ + +#include "qemu/osdep.h" +#include "qom/object.h" +#include "qapi/error.h" +#include "hw/audio/soundhw.h" +#include "hw/virtio/virtio-pci.h" +#include "hw/audio/virtio-snd.h" + +/* + * virtio-snd-pci: This extends VirtioPCIProxy. + */ +#define TYPE_VIRTIO_SND_PCI "virtio-sound-pci" +OBJECT_DECLARE_SIMPLE_TYPE(VirtIOSoundPCI, VIRTIO_SND_PCI) + +struct VirtIOSoundPCI { + VirtIOPCIProxy parent_obj; + + VirtIOSound vdev; +}; + +static Property virtio_snd_pci_properties[] = { + DEFINE_PROP_BIT("ioeventfd", VirtIOPCIProxy, flags, + VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT, true), + DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, 2), + DEFINE_PROP_END_OF_LIST(), +}; + +static void virtio_snd_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp) +{ + VirtIOSoundPCI *dev = VIRTIO_SND_PCI(vpci_dev); + DeviceState *vdev = DEVICE(&dev->vdev); + + virtio_pci_force_virtio_1(vpci_dev); + qdev_realize(vdev, BUS(&vpci_dev->bus), errp); +} + +static void virtio_snd_pci_class_init(ObjectClass *klass, void *data) +{ + DeviceClass *dc = DEVICE_CLASS(klass); + VirtioPCIClass *vpciklass = VIRTIO_PCI_CLASS(klass); + + device_class_set_props(dc, virtio_snd_pci_properties); + dc->desc = "Virtio Sound"; + set_bit(DEVICE_CATEGORY_SOUND, dc->categories); + + vpciklass->realize = virtio_snd_pci_realize; +} + +static void virtio_snd_pci_instance_init(Object *obj) +{ + VirtIOSoundPCI *dev = VIRTIO_SND_PCI(obj); + + virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), + TYPE_VIRTIO_SND); +} + +static const VirtioPCIDeviceTypeInfo virtio_snd_pci_info = { + .generic_name = TYPE_VIRTIO_SND_PCI, + .instance_size = sizeof(VirtIOSoundPCI), + .instance_init = virtio_snd_pci_instance_init, + .class_init = virtio_snd_pci_class_init, +}; + +/* Create a Virtio Sound PCI device, so '-audio driver,model=virtio' works. */ +static int virtio_snd_pci_init(PCIBus *bus, const char *audiodev) +{ + DeviceState *vdev = NULL; + VirtIOSoundPCI *dev = NULL; + + vdev = qdev_new(TYPE_VIRTIO_SND_PCI); + assert(vdev); + dev = VIRTIO_SND_PCI(vdev); + qdev_prop_set_string(DEVICE(&dev->vdev), "audiodev", audiodev); + qdev_realize_and_unref(vdev, BUS(bus), &error_fatal); + return 0; +} + +static void virtio_snd_pci_register(void) +{ + virtio_pci_types_register(&virtio_snd_pci_info); + pci_register_soundhw("virtio", "Virtio Sound", virtio_snd_pci_init); +} + +type_init(virtio_snd_pci_register); diff --git a/system/qdev-monitor.c b/system/qdev-monitor.c index 3c0aabe..a13db76 100644 --- a/system/qdev-monitor.c +++ b/system/qdev-monitor.c @@ -112,6 +112,7 @@ static const QDevAlias qdev_alias_table[] = { { "virtio-serial-ccw", "virtio-serial", QEMU_ARCH_VIRTIO_CCW }, { "virtio-serial-pci", "virtio-serial", QEMU_ARCH_VIRTIO_PCI}, { "virtio-sound-device", "virtio-sound", QEMU_ARCH_VIRTIO_MMIO }, + { "virtio-sound-pci", "virtio-sound", QEMU_ARCH_VIRTIO_PCI }, { "virtio-tablet-device", "virtio-tablet", QEMU_ARCH_VIRTIO_MMIO }, { "virtio-tablet-ccw", "virtio-tablet", QEMU_ARCH_VIRTIO_CCW }, { "virtio-tablet-pci", "virtio-tablet", QEMU_ARCH_VIRTIO_PCI }, |