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unified systick handling

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the only change this results in in the example binaries is in the
hackrf-jellybean/systick example, where the the check in
systick_set_clocksource for overflowing from the stm32 area gets used.
This commit is contained in:
chrysn
2012-10-18 22:26:46 +02:00
parent e20f1c0d8f
commit bc5146b710
14 changed files with 60 additions and 205 deletions
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69
lib/lpc43xx/systick.c
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@@ -1,69 +0,0 @@
/*
* This file is part of the libopencm3 project.
*
* Copyright (C) 2010 Thomas Otto <tommi@viadmin.org>
* Copyright (C) 2012 Benjamin Vernoux <titanmkd@gmail.com>
*
* This library is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This library 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#include <libopencm3/lpc43xx/systick.h>
void systick_set_reload(u32 value)
{
STK_LOAD = (value & 0x00FFFFFF);
}
u32 systick_get_value(void)
{
return STK_VAL;
}
void systick_set_clocksource(u8 clocksource)
{
STK_CTRL |= clocksource;
}
void systick_interrupt_enable(void)
{
STK_CTRL |= STK_CTRL_TICKINT;
}
void systick_interrupt_disable(void)
{
STK_CTRL &= ~STK_CTRL_TICKINT;
}
void systick_counter_enable(void)
{
STK_CTRL |= STK_CTRL_ENABLE;
}
void systick_counter_disable(void)
{
STK_CTRL &= ~STK_CTRL_ENABLE;
}
u8 systick_get_countflag(void)
{
if (STK_CTRL & STK_CTRL_COUNTFLAG)
return 1;
else
return 0;
}
u32 systick_get_calib(void)
{
return (STK_CALIB&0x00FFFFFF);
}