Features/ws2812 matrix driver (#5418)

* WS2812 driver implementation for RGB Matrix

* Added driver configuration docs

2 files changed, 29 insertions, 1 deletions

diff --git a/drivers/avr/ws2812.c b/drivers/avr/ws2812.c
index 5bd837ec75..b3ed4fd0b0 100644
--- a/drivers/avr/ws2812.c
+++ b/drivers/avr/ws2812.c
@@ -27,6 +27,12 @@
 #include <util/delay.h>
 #include "debug.h"
 
+#if !defined(LED_ARRAY) && defined(RGB_MATRIX_ENABLE)
+// LED color buffer
+LED_TYPE led[DRIVER_LED_TOTAL];
+  #define LED_ARRAY led
+#endif
+
 #ifdef RGBW_BB_TWI
 
 // Port for the I2C
@@ -141,6 +147,25 @@ unsigned char I2C_Write(unsigned char c)
 
 #endif
 
+#ifdef RGB_MATRIX_ENABLE
+// Set an led in the buffer to a color
+void inline ws2812_setled(int i, uint8_t r, uint8_t g, uint8_t b)
+{
+    led[i].r = r;
+    led[i].g = g;
+    led[i].b = b;
+}
+
+void ws2812_setled_all  (uint8_t r, uint8_t g, uint8_t b)
+{
+  for (int i = 0; i < RGBLED_NUM; i++) {
+    led[i].r = r;
+    led[i].g = g;
+    led[i].b = b;
+  }
+}
+#endif
+
 // Setleds for standard RGB
 void inline ws2812_setleds(LED_TYPE *ledarray, uint16_t leds)
 {
diff --git a/drivers/avr/ws2812.h b/drivers/avr/ws2812.h
index 1f9299ffb5..ecb1dc4d18 100644
--- a/drivers/avr/ws2812.h
+++ b/drivers/avr/ws2812.h
@@ -30,7 +30,6 @@
 
 #include "rgblight_types.h"
 
-
 /* User Interface
  *
  * Input:
@@ -43,6 +42,10 @@
  *         - Send out the LED data
  *         - Wait 50�s to reset the LEDs
  */
+#ifdef RGB_MATRIX_ENABLE
+void ws2812_setled      (int index, uint8_t r, uint8_t g, uint8_t b);
+void ws2812_setled_all  (uint8_t r, uint8_t g, uint8_t b);
+#endif
 
 void ws2812_setleds     (LED_TYPE *ledarray, uint16_t number_of_leds);
 void ws2812_setleds_pin (LED_TYPE *ledarray, uint16_t number_of_leds,uint8_t pinmask);