2 * light weight WS2812 lib include
4 * Version 2.3 - Nev 29th 2015
5 * Author: Tim (cpldcpu@gmail.com)
7 * Please do not change this file! All configuration is handled in "ws2812_config.h"
9 * License: GNU GPL v2 (see License.txt)
13 #ifndef LIGHT_WS2812_H_
14 #define LIGHT_WS2812_H_
17 #include <avr/interrupt.h>
18 //#include "ws2812_config.h"
19 #include "i2cmaster.h"
22 #define LIGHT_I2C_ADDR 0x84
23 #define LIGHT_I2C_ADDR_WRITE ( (LIGHT_I2C_ADDR<<1) | I2C_WRITE )
24 #define LIGHT_I2C_ADDR_READ ( (LIGHT_I2C_ADDR<<1) | I2C_READ )
28 * Structure of the LED array
30 * cRGB: RGB for WS2812S/B/C/D, SK6812, SK6812Mini, SK6812WWA, APA104, APA106
31 * cRGBW: RGBW for SK6812RGBW
34 struct cRGB { uint8_t g; uint8_t r; uint8_t b; };
35 struct cRGBW { uint8_t g; uint8_t r; uint8_t b; uint8_t w;};
42 * ledarray: An array of GRB data describing the LED colors
43 * number_of_leds: The number of LEDs to write
44 * pinmask (optional): Bitmask describing the output bin. e.g. _BV(PB0)
46 * The functions will perform the following actions:
47 * - Set the data-out pin as output
48 * - Send out the LED data
49 * - Wait 50�s to reset the LEDs
52 void ws2812_setleds (struct cRGB *ledarray, uint16_t number_of_leds);
53 void ws2812_setleds_pin (struct cRGB *ledarray, uint16_t number_of_leds,uint8_t pinmask);
54 void ws2812_setleds_rgbw(struct cRGBW *ledarray, uint16_t number_of_leds);
57 * Old interface / Internal functions
59 * The functions take a byte-array and send to the data output as WS2812 bitstream.
60 * The length is the number of bytes to send - three per LED.
63 void ws2812_sendarray (uint8_t *array,uint16_t length);
64 void ws2812_sendarray_mask(uint8_t *array,uint16_t length, uint8_t pinmask);
71 #define CONCAT(a, b) a ## b
74 #define CONCAT_EXP(a, b) CONCAT(a, b)
77 // #define ws2812_PORTREG CONCAT_EXP(PORT,ws2812_port)
78 // #define ws2812_DDRREG CONCAT_EXP(DDR,ws2812_port)
80 #endif /* LIGHT_WS2812_H_ */