1 /* 2 * Vhost-user Sound virtio device PCI glue 3 * 4 * Copyright (c) 2023 Manos Pitsidianakis <manos.pitsidianakis@linaro.org> 5 * 6 * SPDX-License-Identifier: GPL-2.0-or-later 7 */ 8 9 #include "qemu/osdep.h" 10 #include "hw/qdev-properties.h" 11 #include "hw/virtio/vhost-user-snd.h" 12 #include "hw/virtio/virtio-pci.h" 13 14 struct VHostUserSoundPCI { 15 VirtIOPCIProxy parent_obj; 16 VHostUserSound vdev; 17 }; 18 19 typedef struct VHostUserSoundPCI VHostUserSoundPCI; 20 21 #define TYPE_VHOST_USER_SND_PCI "vhost-user-snd-pci-base" 22 23 DECLARE_INSTANCE_CHECKER(VHostUserSoundPCI, VHOST_USER_SND_PCI, 24 TYPE_VHOST_USER_SND_PCI) 25 26 static Property vhost_user_snd_pci_properties[] = { 27 DEFINE_PROP_END_OF_LIST(), 28 }; 29 30 static void vhost_user_snd_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp) 31 { 32 VHostUserSoundPCI *dev = VHOST_USER_SND_PCI(vpci_dev); 33 DeviceState *vdev = DEVICE(&dev->vdev); 34 35 vpci_dev->nvectors = 1; 36 37 qdev_realize(vdev, BUS(&vpci_dev->bus), errp); 38 } 39 40 static void vhost_user_snd_pci_class_init(ObjectClass *klass, void *data) 41 { 42 DeviceClass *dc = DEVICE_CLASS(klass); 43 VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass); 44 PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass); 45 k->realize = vhost_user_snd_pci_realize; 46 set_bit(DEVICE_CATEGORY_SOUND, dc->categories); 47 device_class_set_props(dc, vhost_user_snd_pci_properties); 48 pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET; 49 pcidev_k->device_id = 0; /* Set by virtio-pci based on virtio id */ 50 pcidev_k->revision = 0x00; 51 pcidev_k->class_id = PCI_CLASS_MULTIMEDIA_AUDIO; 52 } 53 54 static void vhost_user_snd_pci_instance_init(Object *obj) 55 { 56 VHostUserSoundPCI *dev = VHOST_USER_SND_PCI(obj); 57 58 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), 59 TYPE_VHOST_USER_SND); 60 } 61 62 static const VirtioPCIDeviceTypeInfo vhost_user_snd_pci_info = { 63 .base_name = TYPE_VHOST_USER_SND_PCI, 64 .non_transitional_name = "vhost-user-snd-pci", 65 .instance_size = sizeof(VHostUserSoundPCI), 66 .instance_init = vhost_user_snd_pci_instance_init, 67 .class_init = vhost_user_snd_pci_class_init, 68 }; 69 70 static void vhost_user_snd_pci_register(void) 71 { 72 virtio_pci_types_register(&vhost_user_snd_pci_info); 73 } 74 75 type_init(vhost_user_snd_pci_register); 76