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/* SPDX-License-Identifier: BSD-2-Clause */
/**
* @file
*
* @ingroup RTEMSBSPsARMShared
*
* @brief ARM-specific clock driver functions.
*/
/*
* Copyright (C) 2020 On-Line Applications Research Corporation (OAR)
* Written by Kinsey Moore <kinsey.moore@oarcorp.com>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <libcpu/arm-cp15.h>
#include <dev/clock/arm-generic-timer.h>
uint64_t arm_gt_clock_get_compare_value(void)
{
#ifdef ARM_GENERIC_TIMER_USE_VIRTUAL
return arm_cp15_get_counter_pl1_virtual_compare_value();
#else
return arm_cp15_get_counter_pl1_physical_compare_value();
#endif
}
void arm_gt_clock_set_compare_value(uint64_t cval)
{
#ifdef ARM_GENERIC_TIMER_USE_VIRTUAL
arm_cp15_set_counter_pl1_virtual_compare_value(cval);
#else
arm_cp15_set_counter_pl1_physical_compare_value(cval);
#endif
}
uint64_t arm_gt_clock_get_count(void)
{
#ifdef ARM_GENERIC_TIMER_USE_VIRTUAL
return arm_cp15_get_counter_virtual_count();
#else
return arm_cp15_get_counter_physical_count();
#endif
}
void arm_gt_clock_set_control(uint32_t ctl)
{
#ifdef ARM_GENERIC_TIMER_USE_VIRTUAL
arm_cp15_set_counter_pl1_virtual_timer_control(ctl);
#else
arm_cp15_set_counter_pl1_physical_timer_control(ctl);
#endif
}
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