circuitpython/ports/stm/common-hal/rgbmatrix/RGBMatrix.c

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/*
* This file is part of the Micro Python project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2020 Jeff Epler for Adafruit Industries
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include <stddef.h>
#include "common-hal/rgbmatrix/RGBMatrix.h"
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#include "timers.h"
#include STM32_HAL_H
extern void _PM_IRQ_HANDLER(void);
void *common_hal_rgbmatrix_timer_allocate() {
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return stm_peripherals_find_timer();
}
void common_hal_rgbmatrix_timer_enable(void* ptr) {
HAL_NVIC_EnableIRQ(TIM6_DAC_IRQn);
}
void common_hal_rgbmatrix_timer_disable(void* ptr) {
TIM_TypeDef *tim = (TIM_TypeDef*)ptr;
tim->DIER &= ~TIM_DIER_UIE;
HAL_NVIC_DisableIRQ(TIM6_DAC_IRQn);
}
void common_hal_rgbmatrix_timer_free(void* ptr) {
common_hal_rgbmatrix_timer_disable(ptr);
// TODO(jepler) properly handle resource allocation including never-reset
}