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//
// Copyright 2017 Ettus Research (National Instruments)
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.
//

#pragma once

#include "../ad937x_device_types.hpp"
#include "../adi/t_mykonos.h"

// TODO: fix paths for the config subfolder
#include "../../../include/mpm/ad937x/ad937x_ctrl_types.hpp"

#include <vector>
#include <unordered_map>

struct ad937x_gain_ctrl_channel_t
{
    uint8_t enable;
    uint8_t inc_step;
    uint8_t dec_step;
    mykonosGpioSelect_t inc_pin;
    mykonosGpioSelect_t dec_pin;

    ad937x_gain_ctrl_channel_t(mykonosGpioSelect_t inc_pin, mykonosGpioSelect_t dec_pin);

private:
    const static uint8_t DEFAULT_GAIN_STEP;
    const static bool DEFAULT_ENABLE;
};

// C++14 requires std::hash includes a specialization for enums, but gcc doesn't do that yet
// Remove this when that happens
namespace std {
    template <> struct hash<uhd::direction_t>
    {
        size_t operator()(const uhd::direction_t & x) const
        {
            return static_cast<std::size_t>(x);
        }
    };

    template <> struct hash<mpm::ad937x::device::chain_t>
    {
        size_t operator()(const mpm::ad937x::device::chain_t & x) const
        {
            return static_cast<std::size_t>(x);
        }
    };
}

struct ad937x_gain_ctrl_config_t
{
    std::unordered_map<uhd::direction_t,
        std::unordered_map<mpm::ad937x::device::chain_t, ad937x_gain_ctrl_channel_t>> config;

    ad937x_gain_ctrl_config_t(mpm::ad937x::gpio::gain_pins_t gain_pins);
};