timer_config.cpp
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/****************************************************************************
*
* Copyright (C) 2020 PX4 Development Team. All rights reserved.
*
* 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.
* 3. Neither the name PX4 nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* 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 <px4_arch/io_timer_hw_description.h>
constexpr io_timers_t io_timers[MAX_IO_TIMERS] = {
initIOTimer(Timer::Timer5, DMA{DMA::Index1}),
initIOTimer(Timer::Timer4, DMA{DMA::Index1}),
initIOTimer(Timer::Timer1, DMA{DMA::Index1}),
initIOTimer(Timer::Timer12),
};
constexpr timer_io_channels_t timer_io_channels[MAX_TIMER_IO_CHANNELS] = {
initIOTimerChannel(io_timers, {Timer::Timer5, Timer::Channel1}, {GPIO::PortH, GPIO::Pin10}),
initIOTimerChannel(io_timers, {Timer::Timer5, Timer::Channel2}, {GPIO::PortH, GPIO::Pin11}),
initIOTimerChannel(io_timers, {Timer::Timer5, Timer::Channel3}, {GPIO::PortH, GPIO::Pin12}),
initIOTimerChannel(io_timers, {Timer::Timer5, Timer::Channel4}, {GPIO::PortI, GPIO::Pin0}),
initIOTimerChannel(io_timers, {Timer::Timer4, Timer::Channel1}, {GPIO::PortD, GPIO::Pin12}),
initIOTimerChannel(io_timers, {Timer::Timer4, Timer::Channel2}, {GPIO::PortD, GPIO::Pin13}),
initIOTimerChannel(io_timers, {Timer::Timer4, Timer::Channel3}, {GPIO::PortD, GPIO::Pin14}),
initIOTimerChannel(io_timers, {Timer::Timer4, Timer::Channel4}, {GPIO::PortD, GPIO::Pin15}),
initIOTimerChannel(io_timers, {Timer::Timer1, Timer::Channel1}, {GPIO::PortE, GPIO::Pin9}),
initIOTimerChannel(io_timers, {Timer::Timer1, Timer::Channel2}, {GPIO::PortE, GPIO::Pin11}),
initIOTimerChannel(io_timers, {Timer::Timer1, Timer::Channel3}, {GPIO::PortA, GPIO::Pin10}),
initIOTimerChannel(io_timers, {Timer::Timer1, Timer::Channel4}, {GPIO::PortE, GPIO::Pin14}),
initIOTimerChannel(io_timers, {Timer::Timer12, Timer::Channel1}, {GPIO::PortH, GPIO::Pin6}),
initIOTimerChannel(io_timers, {Timer::Timer12, Timer::Channel2}, {GPIO::PortH, GPIO::Pin9}),
};
constexpr io_timers_channel_mapping_t io_timers_channel_mapping =
initIOTimerChannelMapping(io_timers, timer_io_channels);
constexpr io_timers_t led_pwm_timers[MAX_LED_TIMERS] = {
initIOTimer(Timer::Timer8),
};
#define CCER_C1_NUM_BITS 4
#define POLARITY(c) (GTIM_CCER_CC1P << (((c)-1) * CCER_C1_NUM_BITS))
#define DRIVE_TYPE(p) ((p)|GPIO_OPENDRAIN|GPIO_PULLUP)
static inline constexpr timer_io_channels_t initIOTimerChannelLED(const io_timers_t io_timers_conf[MAX_LED_TIMERS],
Timer::TimerChannel timer, GPIO::GPIOPin pin, int ui_polarity)
{
timer_io_channels_t ret = initIOTimerChannel(io_timers_conf, timer, pin);
ret.gpio_out = DRIVE_TYPE(ret.gpio_out);
ret.masks = POLARITY(ui_polarity);
return ret;
}
constexpr timer_io_channels_t led_pwm_channels[MAX_TIMER_LED_CHANNELS] = {
initIOTimerChannelLED(led_pwm_timers, {Timer::Timer8, Timer::Channel1}, {GPIO::PortI, GPIO::Pin5}, 1),
initIOTimerChannelLED(led_pwm_timers, {Timer::Timer8, Timer::Channel2}, {GPIO::PortI, GPIO::Pin6}, 2),
initIOTimerChannelLED(led_pwm_timers, {Timer::Timer8, Timer::Channel3}, {GPIO::PortI, GPIO::Pin7}, 3),
};