src/camera/drivers/isp/modules/sensor.h

// Copyright 2019 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_CAMERA_DRIVERS_ISP_MODULES_SENSOR_H_
#define SRC_CAMERA_DRIVERS_ISP_MODULES_SENSOR_H_

#include <lib/mmio/mmio.h>

#include <ddktl/protocol/camerasensor.h>
#include <fbl/unique_ptr.h>

namespace camera {

namespace {

constexpr uint32_t kNumModes = 3;

}
// This class controls all sensor functionality.
class Sensor {
 public:
  DISALLOW_COPY_AND_ASSIGN_ALLOW_MOVE(Sensor);
  Sensor(const ddk::MmioView& isp_mmio, const ddk::MmioView& isp_mmio_local,
         ddk::CameraSensorProtocolClient camera_sensor)
      : isp_mmio_(isp_mmio), isp_mmio_local_(isp_mmio_local), camera_sensor_(camera_sensor) {}

  static fbl::unique_ptr<Sensor> Create(const ddk::MmioView& isp_mmio,
                                        const ddk::MmioView& isp_mmio_local,
                                        ddk::CameraSensorProtocolClient camera_sensor);
  zx_status_t Init();

  // Sensor APIs for Camera manager to use
  zx_status_t Update();
  zx_status_t SetMode(uint8_t mode);
  zx_status_t GetInfo(sensor_info_t* out_info);
  zx_status_t GetSupportedModes(sensor_mode_t* out_modes_list, size_t modes_count);
  int32_t SetAnalogGain(int32_t gain);
  int32_t SetDigitalGain(int32_t gain);
  zx_status_t StartStreaming();
  zx_status_t StopStreaming();
  zx_status_t SetIntegrationTime(int32_t int_time);

 private:
  zx_status_t HwInit();
  zx_status_t SwInit();

  ddk::MmioView isp_mmio_;
  ddk::MmioView isp_mmio_local_;
  ddk::CameraSensorProtocolClient camera_sensor_;

  uint8_t current_sensor_mode_;
  sensor_mode_t sensor_modes_[kNumModes];
};

}  // namespace camera

#endif  // SRC_CAMERA_DRIVERS_ISP_MODULES_SENSOR_H_