diff options
Diffstat (limited to 'hw/input')
| -rw-r--r-- | hw/input/Kconfig | 7 | ||||
| -rw-r--r-- | hw/input/Makefile.objs | 5 | ||||
| -rw-r--r-- | hw/input/vhost-user-input.c | 129 |
3 files changed, 137 insertions, 4 deletions
diff --git a/hw/input/Kconfig b/hw/input/Kconfig index e2e66f0858..889363d8ae 100644 --- a/hw/input/Kconfig +++ b/hw/input/Kconfig @@ -27,7 +27,12 @@ config VIRTIO_INPUT config VIRTIO_INPUT_HOST bool default y - depends on VIRTIO && LINUX + depends on VIRTIO_INPUT && LINUX + +config VHOST_USER_INPUT + bool + default y + depends on VIRTIO_INPUT && VHOST_USER config TSC210X bool diff --git a/hw/input/Makefile.objs b/hw/input/Makefile.objs index c8b00f71ec..d1de307708 100644 --- a/hw/input/Makefile.objs +++ b/hw/input/Makefile.objs @@ -9,9 +9,8 @@ common-obj-$(CONFIG_TSC2005) += tsc2005.o common-obj-$(CONFIG_VIRTIO_INPUT) += virtio-input.o common-obj-$(CONFIG_VIRTIO_INPUT) += virtio-input-hid.o -ifeq ($(CONFIG_LINUX),y) -common-obj-$(CONFIG_VIRTIO_INPUT) += virtio-input-host.o -endif +common-obj-$(CONFIG_VIRTIO_INPUT_HOST) += virtio-input-host.o +common-obj-$(CONFIG_VHOST_USER_INPUT) += vhost-user-input.o obj-$(CONFIG_MILKYMIST) += milkymist-softusb.o obj-$(CONFIG_PXA2XX) += pxa2xx_keypad.o diff --git a/hw/input/vhost-user-input.c b/hw/input/vhost-user-input.c new file mode 100644 index 0000000000..6da497b1a8 --- /dev/null +++ b/hw/input/vhost-user-input.c @@ -0,0 +1,129 @@ +/* + * 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 "qemu/error-report.h" +#include "qapi/error.h" +#include "qemu-common.h" + +#include "hw/qdev.h" +#include "hw/virtio/virtio-input.h" + +static int vhost_input_config_change(struct vhost_dev *dev) +{ + error_report("vhost-user-input: unhandled backend config change"); + return -1; +} + +static const VhostDevConfigOps config_ops = { + .vhost_dev_config_notifier = vhost_input_config_change, +}; + +static void vhost_input_realize(DeviceState *dev, Error **errp) +{ + VHostUserInput *vhi = VHOST_USER_INPUT(dev); + VirtIOInput *vinput = VIRTIO_INPUT(dev); + VirtIODevice *vdev = VIRTIO_DEVICE(dev); + + vhost_dev_set_config_notifier(&vhi->vhost->dev, &config_ops); + vinput->cfg_size = sizeof_field(virtio_input_config, u); + if (vhost_user_backend_dev_init(vhi->vhost, vdev, 2, errp) == -1) { + return; + } +} + +static void vhost_input_change_active(VirtIOInput *vinput) +{ + VHostUserInput *vhi = VHOST_USER_INPUT(vinput); + + if (vinput->active) { + vhost_user_backend_start(vhi->vhost); + } else { + vhost_user_backend_stop(vhi->vhost); + } +} + +static void vhost_input_get_config(VirtIODevice *vdev, uint8_t *config_data) +{ + VirtIOInput *vinput = VIRTIO_INPUT(vdev); + VHostUserInput *vhi = VHOST_USER_INPUT(vdev); + int ret; + + memset(config_data, 0, vinput->cfg_size); + + ret = vhost_dev_get_config(&vhi->vhost->dev, config_data, vinput->cfg_size); + if (ret) { + error_report("vhost-user-input: get device config space failed"); + return; + } +} + +static void vhost_input_set_config(VirtIODevice *vdev, + const uint8_t *config_data) +{ + VHostUserInput *vhi = VHOST_USER_INPUT(vdev); + int ret; + + ret = vhost_dev_set_config(&vhi->vhost->dev, config_data, + 0, sizeof(virtio_input_config), + VHOST_SET_CONFIG_TYPE_MASTER); + if (ret) { + error_report("vhost-user-input: set device config space failed"); + return; + } + + virtio_notify_config(vdev); +} + +static const VMStateDescription vmstate_vhost_input = { + .name = "vhost-user-input", + .unmigratable = 1, +}; + +static void vhost_input_class_init(ObjectClass *klass, void *data) +{ + VirtIOInputClass *vic = VIRTIO_INPUT_CLASS(klass); + VirtioDeviceClass *vdc = VIRTIO_DEVICE_CLASS(klass); + DeviceClass *dc = DEVICE_CLASS(klass); + + dc->vmsd = &vmstate_vhost_input; + vdc->get_config = vhost_input_get_config; + vdc->set_config = vhost_input_set_config; + vic->realize = vhost_input_realize; + vic->change_active = vhost_input_change_active; +} + +static void vhost_input_init(Object *obj) +{ + VHostUserInput *vhi = VHOST_USER_INPUT(obj); + + vhi->vhost = VHOST_USER_BACKEND(object_new(TYPE_VHOST_USER_BACKEND)); + object_property_add_alias(obj, "chardev", + OBJECT(vhi->vhost), "chardev", &error_abort); +} + +static void vhost_input_finalize(Object *obj) +{ + VHostUserInput *vhi = VHOST_USER_INPUT(obj); + + object_unref(OBJECT(vhi->vhost)); +} + +static const TypeInfo vhost_input_info = { + .name = TYPE_VHOST_USER_INPUT, + .parent = TYPE_VIRTIO_INPUT, + .instance_size = sizeof(VHostUserInput), + .instance_init = vhost_input_init, + .instance_finalize = vhost_input_finalize, + .class_init = vhost_input_class_init, +}; + +static void vhost_input_register_types(void) +{ + type_register_static(&vhost_input_info); +} + +type_init(vhost_input_register_types) |