genode/repos/base-hw/src/core/spec/rpi/timer_driver.h
Martin Stein 4d3d4ecca0 hw core: merge Kernel::Clock and Kernel::Timer
With this, we get rid of platform specific timer interfaces. The new
Timer class does the same as the old Clock class and has a generic
interface. The old Timer class was merely used by the old Clock class.
Also, we get rid of having only one timer instance which we tell with
each method call for which CPU it shall be done. Instead now each Cpu
object has its own Timer member that knows the CPU it works for.

Also, rename all "tics" to "ticks".

Fixes #2347
2017-05-31 13:16:10 +02:00

42 lines
882 B
C++

/*
* \brief Timer driver for core
* \author Norman Feske
* \date 2013-04-05
*/
/*
* Copyright (C) 2013-2017 Genode Labs GmbH
*
* This file is part of the Kernel OS framework, which is distributed
* under the terms of the GNU Affero General Public License version 3.
*/
#ifndef _TIMER_DRIVER_H_
#define _TIMER_DRIVER_H_
/* Kernel includes */
#include <util/mmio.h>
/* core includes */
#include <board.h>
namespace Kernel { class Timer_driver; }
/**
* Timer driver for core
*
* Timer channel 0 apparently doesn't work on the RPI, so we use channel 1
*/
struct Kernel::Timer_driver : Genode::Mmio
{
enum { TICS_PER_MS = Board::SYSTEM_TIMER_CLOCK / 1000 };
struct Cs : Register<0x0, 32> { struct M1 : Bitfield<1, 1> { }; };
struct Clo : Register<0x4, 32> { };
struct Cmp : Register<0x10, 32> { };
Timer_driver(unsigned);
};
#endif /* _TIMER_DRIVER_H_ */