1 /*
2 * Vhost-user gpio virtio device PCI glue
3 *
4 * Copyright (c) 2022 Viresh Kumar <viresh.kumar@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-gpio.h"
12 #include "hw/virtio/virtio-pci.h"
13
14 struct VHostUserGPIOPCI {
15 VirtIOPCIProxy parent_obj;
16 VHostUserGPIO vdev;
17 };
18
19 typedef struct VHostUserGPIOPCI VHostUserGPIOPCI;
20
21 #define TYPE_VHOST_USER_GPIO_PCI "vhost-user-gpio-pci-base"
22
DECLARE_INSTANCE_CHECKER(VHostUserGPIOPCI,VHOST_USER_GPIO_PCI,TYPE_VHOST_USER_GPIO_PCI)23 DECLARE_INSTANCE_CHECKER(VHostUserGPIOPCI, VHOST_USER_GPIO_PCI,
24 TYPE_VHOST_USER_GPIO_PCI)
25
26 static void vhost_user_gpio_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp)
27 {
28 VHostUserGPIOPCI *dev = VHOST_USER_GPIO_PCI(vpci_dev);
29 DeviceState *vdev = DEVICE(&dev->vdev);
30
31 vpci_dev->nvectors = 1;
32 qdev_realize(vdev, BUS(&vpci_dev->bus), errp);
33 }
34
vhost_user_gpio_pci_class_init(ObjectClass * klass,void * data)35 static void vhost_user_gpio_pci_class_init(ObjectClass *klass, void *data)
36 {
37 DeviceClass *dc = DEVICE_CLASS(klass);
38 VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass);
39 PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass);
40 k->realize = vhost_user_gpio_pci_realize;
41 set_bit(DEVICE_CATEGORY_INPUT, dc->categories);
42 pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET;
43 pcidev_k->device_id = 0; /* Set by virtio-pci based on virtio id */
44 pcidev_k->revision = 0x00;
45 pcidev_k->class_id = PCI_CLASS_COMMUNICATION_OTHER;
46 }
47
vhost_user_gpio_pci_instance_init(Object * obj)48 static void vhost_user_gpio_pci_instance_init(Object *obj)
49 {
50 VHostUserGPIOPCI *dev = VHOST_USER_GPIO_PCI(obj);
51
52 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
53 TYPE_VHOST_USER_GPIO);
54 }
55
56 static const VirtioPCIDeviceTypeInfo vhost_user_gpio_pci_info = {
57 .base_name = TYPE_VHOST_USER_GPIO_PCI,
58 .non_transitional_name = "vhost-user-gpio-pci",
59 .instance_size = sizeof(VHostUserGPIOPCI),
60 .instance_init = vhost_user_gpio_pci_instance_init,
61 .class_init = vhost_user_gpio_pci_class_init,
62 };
63
vhost_user_gpio_pci_register(void)64 static void vhost_user_gpio_pci_register(void)
65 {
66 virtio_pci_types_register(&vhost_user_gpio_pci_info);
67 }
68
69 type_init(vhost_user_gpio_pci_register);
70