diff options
Diffstat (limited to 'drivers/ws2812.c')
-rw-r--r-- | drivers/ws2812.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/ws2812.c b/drivers/ws2812.c new file mode 100644 index 0000000000..bf234c6f7d --- /dev/null +++ b/drivers/ws2812.c @@ -0,0 +1,15 @@ +// Copyright 2024 QMK +// SPDX-License-Identifier: GPL-2.0-or-later + +#include "ws2812.h" + +#if defined(WS2812_RGBW) +void ws2812_rgb_to_rgbw(ws2812_led_t *led) { + // Determine lowest value in all three colors, put that into + // the white channel and then shift all colors by that amount + led->w = MIN(led->r, MIN(led->g, led->b)); + led->r -= led->w; + led->g -= led->w; + led->b -= led->w; +} +#endif |