99 lines
3.5 KiB
C++
99 lines
3.5 KiB
C++
/*
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TasmotaLEDPusher.cpp - Implementation to push Leds via hardware acceleration
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Copyright (C) 2024 Stephan Hadinger
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This library is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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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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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifdef ESP32
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#include "TasmotaLEDPusher.h"
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#include "TasmotaLED.h"
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//**************************************************************************************************************
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// enable AddLog support within a C++ library
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extern void AddLog(uint32_t loglevel, PGM_P formatP, ...);
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enum LoggingLevels {LOG_LEVEL_NONE, LOG_LEVEL_ERROR, LOG_LEVEL_INFO, LOG_LEVEL_DEBUG, LOG_LEVEL_DEBUG_MORE};
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//**************************************************************************************************************
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// convert to the appropriate hardware acceleration based on capacities of the SOC
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uint32_t TasmotaLEDPusher::ResolveHardware(uint32_t hw_input) {
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// Step 1. discard any unsupported hardware, and replace with TasmotaLed_HW_Default
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uint32_t hw = hw_input & 0xFF0000; // discard bits 0..15
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#if !TASMOTALED_HARDWARE_RMT
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hw &= ~TasmotaLed_RMT; // remove RMT flag if not supported by hardware
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#endif // TASMOTALED_HARDWARE_RMT
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#if !TASMOTALED_HARDWARE_SPI
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hw &= ~TasmotaLed_SPI; // remove SPI flag if not supported by hardware
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#endif // TASMOTALED_HARDWARE_SPI
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#if !TASMOTALED_HARDWARE_I2S
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hw &= ~TasmotaLed_I2S; // remove I2S flag if not supported by hardware
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#endif // TASMOTALED_HARDWARE_I2S
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// Step 2. If TasmotaLed_HW_Default, find a suitable scheme, RMT preferred
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#if TASMOTALED_HARDWARE_RMT
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if (hw == TasmotaLed_HW_Default) {
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hw |= TasmotaLed_RMT;
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}
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#endif // TASMOTALED_HARDWARE_RMT
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#if TASMOTALED_HARDWARE_I2S
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if (hw == TasmotaLed_HW_Default) {
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hw |= TasmotaLed_I2S;
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}
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#endif // TASMOTALED_HARDWARE_I2S
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#if TASMOTALED_HARDWARE_SPI
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if (hw == TasmotaLed_HW_Default) {
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hw |= TasmotaLed_SPI;
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}
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#endif // TASMOTALED_HARDWARE_SPI
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return hw;
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}
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TasmotaLEDPusher * TasmotaLEDPusher::Create(uint32_t hw, int8_t gpio) {
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TasmotaLEDPusher * pusher = nullptr;
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hw = TasmotaLEDPusher::ResolveHardware(hw);
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#if TASMOTALED_HARDWARE_RMT
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if (pusher == nullptr && (hw & TasmotaLed_RMT)) {
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pusher = new TasmotaLEDPusherRMT(gpio);
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if (pusher->Initialized()) {
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AddLog(LOG_LEVEL_DEBUG, "LED: RMT gpio %i", gpio);
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} else {
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AddLog(LOG_LEVEL_INFO, "LED: Error create %s bus failed %i err=%i", "RMT", gpio, pusher->Error());
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delete pusher;
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pusher = nullptr;
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}
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}
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#endif // TASMOTALED_HARDWARE_RMT
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#if TASMOTALED_HARDWARE_SPI
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if (pusher == nullptr && (hw & TasmotaLed_SPI)) {
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pusher = new TasmotaLEDPusherSPI(gpio);
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if (pusher->Initialized()) {
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AddLog(LOG_LEVEL_DEBUG, "LED: SPI gpio %i", gpio);
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} else {
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AddLog(LOG_LEVEL_INFO, "LED: Error create %s bus failed %i err=%i", "SPI", gpio, pusher->Error());
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delete pusher;
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pusher = nullptr;
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}
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}
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#endif // TASMOTALED_HARDWARE_SPI
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return pusher;
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}
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#endif // ESP32
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