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stm32: lptim: add base support

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Add basically what's needed to have some minimal but usefull subset of
function for a timer: irqs, compare, period, out polarity, enable/disable
and start.
This commit is contained in:
Guillaume Revaillot
2019-06-18 13:33:11 +02:00
parent f99e711873
commit 2035d84e55
7 changed files with 334 additions and 0 deletions
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35
include/libopencm3/stm32/common/lptimer_common_all.h
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@@ -1,12 +1,14 @@
/** @addtogroup lptimer_defines
*
* @author @htmlonly &copy; @endhtmlonly 2009 Piotr Esden-Tempski <piotr@esden.net>
* @author @htmlonly &copy; @endhtmlonly 2019 Guillaume Revaillot <g.revaillot@gmail.com>
*
*/
/*
* This file is part of the libopencm3 project.
*
* Copyright (C) 2009 Piotr Esden-Tempski <piotr@esden.net>
* Copyright (C) 2019 Guillaume Revaillot <g.revaillot@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
@@ -252,10 +254,43 @@
#define LPTIM_CR_CNTSTRT (1 << 2)
/**@}*/
/* --- LPTIM function prototypes --------------------------------------------- */
BEGIN_DECLS
void lptimer_enable(uint32_t timer_peripheral);
void lptimer_disable(uint32_t timer_peripheral);
void lptimer_start_counter(uint32_t timer_peripheral, uint32_t mode);
void lptimer_set_counter(uint32_t timer_peripheral, uint16_t count);
uint16_t lptimer_get_counter(uint32_t timer_peripheral);
void lptimer_set_compare(uint32_t timer_peripheral, uint16_t compare_value);
void lptimer_set_period(uint32_t lptimer_peripheral, uint16_t period_value);
void lptimer_enable_preload(uint32_t lptimer_peripheral);
void lptimer_disable_preload(uint32_t lptimer_peripheral);
void lptimer_set_waveform_polarity_high(uint32_t lptimer_peripheral);
void lptimer_set_waveform_polarity_low(uint32_t lptimer_peripheral);
void lptimer_set_prescaler(uint32_t timer_peripheral, uint32_t prescaler);
void lptimer_enable_trigger(uint32_t lptimer_peripheral, uint32_t trigen);
void lptimer_select_trigger_source(uint32_t lptimer_peripheral, uint32_t trigger_source);
void lptimer_set_internal_clock_source(uint32_t timer_peripheral);
void lptimer_set_external_clock_source(uint32_t timer_peripheral);
void lptimer_clear_flag(uint32_t timer_peripheral, uint32_t flag);
bool lptimer_get_flag(uint32_t timer_peripheral, uint32_t flag);
void lptimer_enable_irq(uint32_t timer_peripheral, uint32_t irq);
void lptimer_disable_irq(uint32_t timer_peripheral, uint32_t irq);
END_DECLS
#endif
/** @cond */
#else
#warning "lptimer_common_all.h should not be included directly, only via lptimer.h"
#endif
/** @endcond */
/**@}*/