sdk/fidl/fuchsia.gpu.virtio/virtio.fidl

// Copyright 2024 The Fuchsia Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

/// Driver protocol between magma and display drivers for virtio-gpu
@available(added=HEAD)
library fuchsia.gpu.virtio;

using zx;

@discoverable
closed protocol GpuControl {
    /// Returns the number of capability sets supported by the virtio-gpu device.
    strict GetCapabilitySetLimit() -> (struct {
        limit uint64;
    });

    /// Sends an opaque hardware request of variable length and returns a variable length response.
    /// Commands go on the control queue.
    strict SendHardwareCommand(struct {
        request vector<uint8>:MAX;
    }) -> (struct {
        response vector<uint8>:MAX;
    }) error zx.Status;
};

service Service {
    control client_end:GpuControl;
};