drv_neopixel.h
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/****************************************************************************
*
* Copyright (C) 2021 PX4 Development Team. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name PX4 nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/**
* @file drv_adc.h
*
* ADC driver interface.
*
*/
#pragma once
#include <stdint.h>
#include <sys/ioctl.h>
#include <systemlib/px4_macros.h>
namespace neopixel
{
class NeoLEDData
{
public:
enum eRGB {
eB = 0,
eR = 1,
eG = 2
};
typedef union {
uint8_t grb[3];
uint32_t l;
} led_data_t;
led_data_t data{};
NeoLEDData() {data.l = 0;}
NeoLEDData(NeoLEDData &r) {data.l = r.data.l;}
uint8_t &R() {return data.grb[eR];};
uint8_t &G() {return data.grb[eG];};
uint8_t &B() {return data.grb[eB];};
};
};
__BEGIN_DECLS
int neopixel_init(neopixel::NeoLEDData *led_data, int number_of_packages);
int neopixel_write(neopixel::NeoLEDData *led_data, int number_of_packages);
int neopixel_deinit(void);
int neopixel_write_no_dma(uint8_t r, uint8_t g, uint8_t b, uint8_t led_count);
__END_DECLS