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58 lines
2 KiB
C
58 lines
2 KiB
C
/*
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* This file is part of Cleanflight.
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*
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* Cleanflight 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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*
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* Cleanflight 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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* You should have received a copy of the GNU General Public License
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* along with Cleanflight. If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#define WS2811_LED_STRIP_LENGTH 32
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#define WS2811_BITS_PER_LED 24
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#define WS2811_DELAY_BUFFER_LENGTH 42 // for 50us delay
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#define WS2811_DATA_BUFFER_SIZE (WS2811_BITS_PER_LED * WS2811_LED_STRIP_LENGTH)
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#define WS2811_DMA_BUFFER_SIZE (WS2811_DATA_BUFFER_SIZE + WS2811_DELAY_BUFFER_LENGTH) // number of bytes needed is #LEDs * 24 bytes + 42 trailing bytes)
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#if defined(STM32F40_41xxx)
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#define BIT_COMPARE_1 67 // timer compare value for logical 1
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#define BIT_COMPARE_0 33 // timer compare value for logical 0
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#else
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#define BIT_COMPARE_1 17 // timer compare value for logical 1
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#define BIT_COMPARE_0 9 // timer compare value for logical 0
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#endif
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void ws2811LedStripInit(void);
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void ws2811LedStripHardwareInit(void);
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void ws2811LedStripDMAEnable(void);
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void ws2811UpdateStrip(void);
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void setLedHsv(uint16_t index, const hsvColor_t *color);
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void getLedHsv(uint16_t index, hsvColor_t *color);
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void scaleLedValue(uint16_t index, const uint8_t scalePercent);
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void setLedValue(uint16_t index, const uint8_t value);
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void setStripColor(const hsvColor_t *color);
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void setStripColors(const hsvColor_t *colors);
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bool isWS2811LedStripReady(void);
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extern uint8_t ledStripDMABuffer[WS2811_DMA_BUFFER_SIZE];
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extern volatile uint8_t ws2811LedDataTransferInProgress;
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extern const hsvColor_t hsv_white;
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extern const hsvColor_t hsv_black;
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