mirror of
https://github.com/jomjol/AI-on-the-edge-device.git
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92 lines
3.0 KiB
C++
92 lines
3.0 KiB
C++
/********************************************************************************
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* https://github.com/RoboticsBrno/SmartLeds
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*
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* MIT License
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*
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* Copyright (c) 2017 RoboticsBrno (RobotikaBrno)
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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 all
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* 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 THE
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* SOFTWARE.
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*******************************************************************************/
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#pragma once
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#include "RmtDriver.h"
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#if SMARTLEDS_NEW_RMT_DRIVER
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#include <driver/rmt_tx.h>
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#include <freertos/FreeRTOS.h>
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#include <freertos/semphr.h>
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#include <type_traits>
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#include "Color.h"
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#if !defined(CONFIG_RMT_ISR_IRAM_SAFE) && !defined(SMARTLEDS_DISABLE_IRAM_WARNING)
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#warning "Please enable CONFIG_RMT_ISR_IRAM_SAFE IDF option." \
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"without it, the IDF driver is not able to supply data fast enough."
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#endif
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namespace detail {
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constexpr const int CHANNEL_COUNT = SOC_RMT_GROUPS * SOC_RMT_CHANNELS_PER_GROUP;
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class RmtDriver;
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// This is ridiculous
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struct RmtEncoderWrapper {
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struct rmt_encoder_t base;
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struct rmt_encoder_t* bytes_encoder;
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struct rmt_encoder_t* copy_encoder;
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RmtDriver* driver;
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rmt_symbol_word_t reset_code;
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uint8_t buffer[SOC_RMT_MEM_WORDS_PER_CHANNEL / 8];
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rmt_encode_state_t last_state;
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size_t frame_idx;
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uint8_t component_idx;
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uint8_t buffer_len;
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};
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static_assert(std::is_standard_layout<RmtEncoderWrapper>::value == true);
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class RmtDriver {
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public:
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RmtDriver(const LedType& timing, int count, int pin, int channel_num, SemaphoreHandle_t finishedFlag);
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RmtDriver(const RmtDriver&) = delete;
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esp_err_t init();
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esp_err_t registerIsr(bool isFirstRegisteredChannel);
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esp_err_t unregisterIsr();
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esp_err_t transmit(const Rgb* buffer);
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private:
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static bool IRAM_ATTR txDoneCallback(
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rmt_channel_handle_t tx_chan, const rmt_tx_done_event_data_t* edata, void* user_ctx);
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const LedType& _timing;
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int _count;
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int _pin;
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SemaphoreHandle_t _finishedFlag;
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rmt_channel_handle_t _channel;
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RmtEncoderWrapper _encoder;
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};
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};
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#endif // !SMARTLEDS_NEW_RMT_DRIVER
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