47 lines
1.7 KiB
C
47 lines
1.7 KiB
C
/*
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* This file is part of the Micro Python project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2020 Lucian Copeland for Adafruit Industries
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "rmt.h"
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#include "py/runtime.h"
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bool rmt_reserved_channels[RMT_CHANNEL_MAX];
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rmt_channel_t esp32s2_peripherals_find_and_reserve_rmt(void) {
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for (size_t i = 0; i < RMT_CHANNEL_MAX; i++) {
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if (!rmt_reserved_channels[i]) {
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rmt_reserved_channels[i] = true;
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return i;
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}
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}
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mp_raise_RuntimeError(translate("All timers in use"));
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return false;
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}
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void esp32s2_peripherals_free_rmt(rmt_channel_t chan) {
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rmt_reserved_channels[chan] = false;
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rmt_driver_uninstall(chan);
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}
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