68 lines
2.1 KiB
C++
68 lines
2.1 KiB
C++
/*
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* Copyright (C) EdgeTX
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*
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* Based on code named
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* opentx - https://github.com/opentx/opentx
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* th9x - http://code.google.com/p/th9x
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* er9x - http://code.google.com/p/er9x
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* gruvin9x - http://code.google.com/p/gruvin9x
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*
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* License GPLv2: http://www.gnu.org/licenses/gpl-2.0.html
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include "module_timer_driver.h"
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#include "stm32_pulse_driver.h"
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static void* module_timer_init(void* hw_def, const etx_timer_config_t* cfg)
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{
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auto timer = (const stm32_pulse_timer_t*)hw_def;
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bool polarity = cfg->polarity;
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uint32_t ocval = cfg->cmp_val;
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uint32_t ocmode = (cfg->type == ETX_PWM) ? LL_TIM_OCMODE_FORCED_INACTIVE : LL_TIM_OCMODE_TOGGLE;
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stm32_pulse_init(timer, 0);
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stm32_pulse_config_output(timer, polarity, ocmode, ocval);
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return (void*)timer;
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}
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static void module_timer_deinit(void* ctx)
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{
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auto timer = (const stm32_pulse_timer_t*)ctx;
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stm32_pulse_deinit(timer);
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}
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static void module_timer_send(void* ctx, const etx_timer_config_t* cfg,
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const void* pulses, uint16_t length)
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{
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auto timer = (const stm32_pulse_timer_t*)ctx;
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if (!stm32_pulse_if_not_running_disable(timer)) {
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LL_DMA_DeInit(timer->DMAx, timer->DMA_Stream);
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return;
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}
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// Set polarity
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stm32_pulse_set_polarity(timer, cfg->polarity);
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// Start DMA request and re-enable timer
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uint32_t ocmode = (cfg->type == ETX_PWM) ? LL_TIM_OCMODE_PWM1 : LL_TIM_OCMODE_TOGGLE;
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uint32_t ocval = cfg->cmp_val;
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stm32_pulse_start_dma_req(timer, pulses, length, ocmode, ocval);
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}
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const etx_timer_driver_t STM32ModuleTimerDriver = {
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.init = module_timer_init,
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.deinit = module_timer_deinit,
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.send = module_timer_send,
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};
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