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https://github.com/hyperion-project/hyperion.ng.git
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d2973ff20b
The RPi 2 and 3 have two PWM channels and 3 PWM pins available to the gpio header. BCM18 and BCM12 run on PWM channel 0. BCM13 runs on PWM channel 1. This change allows BCM13 to be used by allowing the PWM channel to be specified. Former-commit-id: 3693ab438c2b369e6307c262d32bba509409e5b9
45 lines
1.1 KiB
C++
45 lines
1.1 KiB
C++
#ifndef LEDDEVICEWS281X_H_
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#define LEDDEVICEWS281X_H_
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#pragma once
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#include <leddevice/LedDevice.h>
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#include <ws2811.h>
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class LedDeviceWS281x : public LedDevice
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{
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public:
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///
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/// Constructs the LedDevice for WS281x (one wire 800kHz)
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///
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/// @param gpio The gpio pin to use (BCM chip counting, default is 18)
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/// @param leds The number of leds attached to the gpio pin
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/// @param freq The target frequency for the data line, default is 800000
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/// @param dmanum The DMA channel to use, default is 5
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///
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LedDeviceWS281x(const int gpio, const int leds, const uint32_t freq, int dmanum, int pwmchannel);
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///
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/// Destructor of the LedDevice, waits for DMA to complete and then cleans up
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///
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~LedDeviceWS281x();
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///
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/// Writes the led color values to the led-device
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///
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/// @param ledValues The color-value per led
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/// @return Zero on succes else negative
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///
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virtual int write(const std::vector<ColorRgb> &ledValues);
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/// Switch the leds off
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virtual int switchOff();
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private:
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ws2811_t led_string;
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int chan;
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bool initialized;
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};
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#endif /* LEDDEVICEWS281X_H_ */
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