qmk_firmware/drivers/ws2812.h
2020-06-22 11:21:48 +10:00

41 lines
1.3 KiB
C

/*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include "quantum/color.h"
/*
* Older WS2812s can handle a reset time (TRST) of 50us, but recent
* component revisions require a minimum of 280us.
*/
#if !defined(WS2812_TRST_US)
# define WS2812_TRST_US 280
#endif
/* User Interface
*
* Input:
* ledarray: An array of GRB data describing the LED colors
* number_of_leds: The number of LEDs to write
*
* The functions will perform the following actions:
* - Set the data-out pin as output
* - Send out the LED data
* - Wait 50us to reset the LEDs
*/
void ws2812_setleds(LED_TYPE *ledarray, uint16_t number_of_leds);