lib/virtio/device.c

75     struct virtio_device *vdev = *dev;
77     assert(vdev);
79     vdev->state = VIRTIO_DEVICE_S_INITIALIZING;
80     strncpy(vdev->dev_name, setup->dev_name, sizeof(vdev->dev_name));
81     vdev->setup_fn = setup->setup_fn;
82     vdev->dev_t_st = setup->dev_t_st;
83     vdev->dev_cap = setup->dev_cap;
86     err = virtio_device_reset(vdev);
92     err = virtio_device_set_status(vdev, VIRTIO_DEVICE_STATUS_ACKNOWLEDGE);
98     err = virtio_device_set_status(vdev, VIRTIO_DEVICE_STATUS_DRIVER);
106     err = virtio_device_feature_negotiate(vdev, setup->features);
112     err = virtio_device_set_status(vdev, VIRTIO_DEVICE_STATUS_FEATURES_OK);
120     err = virtio_device_get_status(vdev, &status);
129     err = virtio_device_specific_setup(vdev, setup->setup_arg);
134     VIRTIO_DEBUG_DEV("Device [%s] is now live.\n", vdev->dev_name);
135     err = virtio_device_set_status(vdev, VIRTIO_DEVICE_STATUS_DRIVER_OK);
141     VIRTIO_DEBUG_DEV("Device initialization for [%s] failed..\n", vdev->dev_name);
142     virtio_device_set_status(vdev, VIRTIO_DEVICE_STATUS_FAILED);
288  * \param vdev to get the device specific pointer
292 void *virtio_device_get_type_state(struct virtio_device *vdev)
294     return vdev->dev_t_st;
301  * \param vdev      VirtIO device
306 errval_t virtio_device_notify_host(struct virtio_device *vdev,
309     if (vdev->f->notify) {
310         vdev->f->notify(vdev, virtq_id);
318  * \param vdev  virtio device
324 errval_t virtio_device_config_read(struct virtio_device *vdev,
328     if (vdev->f->get_config) {
329         return vdev->f->get_config(vdev, buf, len);
338  * \param vdev  virtio device
385  * \param vdev   VirtIO device
391 struct virtqueue_host *virtio_device_get_host_virtq(struct virtio_device *vdev,
394     if (vq_idx < vdev->vq_num) {
395         return vdev->vqh[vq_idx];
416  * \param vdev      virtio device to allocate the queues for
422 errval_t virtio_device_virtqueue_alloc(struct virtio_device *vdev,
428     VIRTIO_DEBUG_VQ("Allocating %u virtqueues for [%s].\n", vq_num, vdev->dev_name);
430     vdev->vq = calloc(vq_num, sizeof(void *));
431     if (vdev->vq == NULL) {
439         setup->device = vdev;
440         err = virtio_virtqueue_alloc(setup, &vdev->vq[i]);
443                 virtio_virtqueue_free(vdev->vq[i]);
445             free(vdev->vq);
452         struct virtqueue *vq = vdev->vq[i];
458             err = virtio_device_set_virtq(vdev, vq);
466     vdev->vq_num = vq_num;
474  * \param vdev   VirtIO device
480 struct virtqueue *virtio_device_get_virtq(struct virtio_device *vdev,
483     if (vq_idx < vdev->vq_num) {
484         return vdev->vq[vq_idx];