qemu

FORK: QEMU emulator
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vhost-user-gpio.h (1273B)

      1 /*
      2  * Vhost-user GPIO virtio device
      3  *
      4  * Copyright (c) 2021 Viresh Kumar <viresh.kumar@linaro.org>
      5  *
      6  * SPDX-License-Identifier: GPL-2.0-or-later
      7  */
      8 
      9 #ifndef _QEMU_VHOST_USER_GPIO_H
     10 #define _QEMU_VHOST_USER_GPIO_H
     11 
     12 #include "hw/virtio/virtio.h"
     13 #include "hw/virtio/vhost.h"
     14 #include "hw/virtio/vhost-user.h"
     15 #include "standard-headers/linux/virtio_gpio.h"
     16 #include "chardev/char-fe.h"
     17 
     18 #define TYPE_VHOST_USER_GPIO "vhost-user-gpio-device"
     19 OBJECT_DECLARE_SIMPLE_TYPE(VHostUserGPIO, VHOST_USER_GPIO);
     20 
     21 struct VHostUserGPIO {
     22     /*< private >*/
     23     VirtIODevice parent_obj;
     24     CharBackend chardev;
     25     struct virtio_gpio_config config;
     26     struct vhost_virtqueue *vhost_vq;
     27     struct vhost_dev vhost_dev;
     28     VhostUserState vhost_user;
     29     VirtQueue *command_vq;
     30     VirtQueue *interrupt_vq;
     31     /**
     32      * There are at least two steps of initialization of the
     33      * vhost-user device. The first is a "connect" step and
     34      * second is a "start" step. Make a separation between
     35      * those initialization phases by using two fields.
     36      *
     37      * @connected: see vu_gpio_connect()/vu_gpio_disconnect()
     38      * @started_vu: see vu_gpio_start()/vu_gpio_stop()
     39      */
     40     bool connected;
     41     bool started_vu;
     42     /*< public >*/
     43 };
     44 
     45 #endif /* _QEMU_VHOST_USER_GPIO_H */