// vi:ft=cpp
/*
 * (c) 2011 Adam Lackorzynski <adam@os.inf.tu-dresden.de>
 *     economic rights: Technische Universität Dresden (Germany)
 *
 * This file is part of TUD:OS and distributed under the terms of the
 * GNU General Public License 2.
 * Please see the COPYING-GPL-2 file for details.
 */
#pragma once

#include <l4/vbus/vbus>
#include <l4/vbus/vbus_gpio.h>

namespace L4vbus {

class Gpio_pin : public Device
{
public:
  Gpio_pin(Device const &dev, unsigned pin)
  : Device(dev), _pin(pin)
  {}

  int get() const
  {
    return l4vbus_gpio_get(_bus.cap(), _dev, _pin);
  }

  int set(int value) const
  {
    return l4vbus_gpio_set(_bus.cap(), _dev, _pin, value);
  }

  int setup(unsigned mode, unsigned value) const
  {
    return l4vbus_gpio_setup(_bus.cap(), _dev, _pin, mode, value);
  }

  int config_pad(unsigned func, unsigned value) const
  {
    return l4vbus_gpio_config_pad(_bus.cap(), _dev, _pin, func, value);
  }

  int config_get(unsigned func, unsigned *value) const
  {
    return l4vbus_gpio_config_get(_bus.cap(), _dev, _pin, func, value);
  }

  int to_irq() const
  {
    return l4vbus_gpio_to_irq(_bus.cap(), _dev, _pin);
  }

  unsigned pin() const { return _pin; }

protected:
  Gpio_pin() {}
  unsigned _pin;
};

class Gpio_module : public Device
{
public:
  Gpio_module(Device dev)
  : Device(dev)
  {}

  int setup(unsigned mask, unsigned mode, unsigned value) const
  {
    return l4vbus_gpio_multi_setup(_bus.cap(), _dev, mask, mode, value);
  }

  int config_pad(unsigned mask, unsigned func, unsigned value) const
  {
    return l4vbus_gpio_multi_config_pad(_bus.cap(), _dev, mask, func, value);
  }

  int get(unsigned *data) const
  {
    return l4vbus_gpio_multi_get(_bus.cap(), _dev, data);
  }

  int set(unsigned mask, unsigned data)
  {
    return l4vbus_gpio_multi_set(_bus.cap(), _dev, mask, data);
  }

  Gpio_pin pin(unsigned pin) const
  {
    return Gpio_pin(*this, pin);
  }

protected:
  Gpio_module() {}
};

}