| // Copyright 2018 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. |
| |
| // WARNING: This file is machine generated by fidlc. |
| |
| #pragma once |
| |
| #include <ddk/protocol/acpi.h> |
| #include <ddktl/device-internal.h> |
| #include <zircon/assert.h> |
| #include <zircon/compiler.h> |
| #include <zircon/types.h> |
| |
| #include "acpi-internal.h" |
| |
| // DDK acpi-protocol support |
| // |
| // :: Proxies :: |
| // |
| // ddk::AcpiProtocolProxy is a simple wrapper around |
| // acpi_protocol_t. It does not own the pointers passed to it |
| // |
| // :: Mixins :: |
| // |
| // ddk::AcpiProtocol is a mixin class that simplifies writing DDK drivers |
| // that implement the acpi protocol. It doesn't set the base protocol. |
| // |
| // :: Examples :: |
| // |
| // // A driver that implements a ZX_PROTOCOL_ACPI device. |
| // class AcpiDevice { |
| // using AcpiDeviceType = ddk::Device<AcpiDevice, /* ddk mixins */>; |
| // |
| // class AcpiDevice : public AcpiDeviceType, |
| // public ddk::AcpiProtocol<AcpiDevice> { |
| // public: |
| // AcpiDevice(zx_device_t* parent) |
| // : AcpiDeviceType("my-acpi-protocol-device", parent) {} |
| // |
| // zx_status_t AcpiMapResource(uint32_t resource_id, uint32_t cache_policy, void** |
| // out_vaddr_buffer, size_t* vaddr_size, zx_handle_t* out_handle); |
| // |
| // zx_status_t AcpiMapInterrupt(int64_t irq_id, zx_handle_t* out_handle); |
| // |
| // ... |
| // }; |
| |
| namespace ddk { |
| |
| template <typename D> |
| class AcpiProtocol : public internal::base_protocol { |
| public: |
| AcpiProtocol() { |
| internal::CheckAcpiProtocolSubclass<D>(); |
| ops_.map_resource = AcpiMapResource; |
| ops_.map_interrupt = AcpiMapInterrupt; |
| |
| // Can only inherit from one base_protocol implementation. |
| ZX_ASSERT(ddk_proto_id_ = 0); |
| ddk_proto_id_ = ZX_PROTOCOL_ACPI; |
| ddk_proto_ops_ = &ops_; |
| } |
| |
| protected: |
| acpi_protocol_ops_t ops_ = {}; |
| |
| private: |
| static zx_status_t AcpiMapResource(void* ctx, uint32_t resource_id, uint32_t cache_policy, |
| void** out_vaddr_buffer, size_t* vaddr_size, |
| zx_handle_t* out_handle) { |
| return static_cast<D*>(ctx)->AcpiMapResource(resource_id, cache_policy, out_vaddr_buffer, |
| vaddr_size, out_handle); |
| } |
| static zx_status_t AcpiMapInterrupt(void* ctx, int64_t irq_id, zx_handle_t* out_handle) { |
| return static_cast<D*>(ctx)->AcpiMapInterrupt(irq_id, out_handle); |
| } |
| }; |
| |
| class AcpiProtocolProxy { |
| public: |
| AcpiProtocolProxy() : ops_(nullptr), ctx_(nullptr) {} |
| AcpiProtocolProxy(const acpi_protocol_t* proto) : ops_(proto->ops), ctx_(proto->ctx) {} |
| |
| void GetProto(acpi_protocol_t* proto) { |
| proto->ctx = ctx_; |
| proto->ops = ops_; |
| } |
| bool is_valid() { return ops_ != nullptr; } |
| void clear() { |
| ctx_ = nullptr; |
| ops_ = nullptr; |
| } |
| zx_status_t MapResource(uint32_t resource_id, uint32_t cache_policy, void** out_vaddr_buffer, |
| size_t* vaddr_size, zx_handle_t* out_handle) { |
| return ops_->map_resource(ctx_, resource_id, cache_policy, out_vaddr_buffer, vaddr_size, |
| out_handle); |
| } |
| zx_status_t MapInterrupt(int64_t irq_id, zx_handle_t* out_handle) { |
| return ops_->map_interrupt(ctx_, irq_id, out_handle); |
| } |
| |
| private: |
| acpi_protocol_ops_t* ops_; |
| void* ctx_; |
| }; |
| |
| } // namespace ddk |