src/da7219/controller/i2c_controller.h

// Copyright 2022 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_DA7219_CONTROLLER_I2C_CONTROLLER_H_
#define SRC_DA7219_CONTROLLER_I2C_CONTROLLER_H_

#include <lib/driver/component/cpp/driver_cpp.h>
#include <lib/driver/component/cpp/service_client.h>

#include "i2c_server.h"

namespace test_i2c_controller {

// Sample driver that implements a `fuchsia.hardware.i2c` bus controller and
// emulates the behavior of an audio hardware codec device to interact with the
// da7219 driver.
class TestDa7219I2cController : public fdf::DriverBase {
 public:
  TestDa7219I2cController(fdf::DriverStartArgs start_args,
                          fdf::UnownedSynchronizedDispatcher driver_dispatcher)
      : fdf::DriverBase("test-da7219-i2c-controller", std::move(start_args),
                        std::move(driver_dispatcher)) {}

  virtual ~TestDa7219I2cController() = default;

  zx::result<> Start() override;

 private:
  zx::result<> AddChild();

  fidl::WireSharedClient<fuchsia_driver_framework::Node> node_;
  fidl::WireSharedClient<fuchsia_driver_framework::NodeController> controller_;
  std::shared_ptr<I2cDeviceServer> i2c_server_;
};

}  // namespace test_i2c_controller

#endif  // SRC_DA7219_CONTROLLER_I2C_CONTROLLER_H_