| // 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. |
| |
| #ifndef SRC_GRAPHICS_DISPLAY_DRIVERS_AML_CANVAS_BOARD_RESOURCES_H_ |
| #define SRC_GRAPHICS_DISPLAY_DRIVERS_AML_CANVAS_BOARD_RESOURCES_H_ |
| |
| #include <fidl/fuchsia.hardware.platform.device/cpp/wire.h> |
| #include <lib/mmio/mmio-buffer.h> |
| #include <lib/zx/bti.h> |
| |
| namespace aml_canvas { |
| |
| // The *ResourceIndex scoped enums define the interface between the board driver |
| // and the aml-canvas driver. |
| |
| // The resource ordering in the board driver's `canvas_mmios` table. |
| enum class MmioResourceIndex : uint8_t { |
| kDmc = 0, // DMC (DDR memory controller) |
| }; |
| |
| // The resource ordering in the board driver's `canvas_btis` table. |
| enum class BtiResourceIndex : uint8_t { |
| kCanvas = 0, // BTI used for canvas transfers. |
| }; |
| |
| // Typesafe wrapper for [`fuchsia.hardware.platform.device/Device.GetMmioById`]. |
| // |
| // If the result is successful, the MmioBuffer is guaranteed to be valid. |
| zx::result<fdf::MmioBuffer> MapMmio( |
| MmioResourceIndex mmio_index, |
| fidl::UnownedClientEnd<fuchsia_hardware_platform_device::Device> pdev); |
| |
| // Typesafe wrapper for [`fuchsia.hardware.platform.device/Device.GetBtiById`]. |
| // |
| // If the result is successful, the zx::bti is guaranteed to be valid. |
| zx::result<zx::bti> GetBti(BtiResourceIndex bti_index, |
| fidl::UnownedClientEnd<fuchsia_hardware_platform_device::Device> pdev); |
| |
| } // namespace aml_canvas |
| |
| #endif // SRC_GRAPHICS_DISPLAY_DRIVERS_AML_CANVAS_BOARD_RESOURCES_H_ |
