Unify RGB and RGBW commands (#7297)

* Fix unicode in comments

Co-Authored-By: fauxpark <fauxpark@gmail.com>

* Remove separate RGBW implementation for a unified function

* Set White to 0 in RGBW LEDs

This is just to get this working, later, proper brightness can be handled elsewhere.

* Use us instead of nanoseconds(?) since it renders correctly on web

* Remove RGBW function from arm/ws2812.h

* Remove RGBW function from arm/ws2812.c

* Formatting changes

* Add doc info

3 files changed, 12 insertions, 25 deletions

diff --git a/drivers/avr/ws2812.c b/drivers/avr/ws2812.c
index 5c733c4ab0..dc7e8d48a8 100644
--- a/drivers/avr/ws2812.c
+++ b/drivers/avr/ws2812.c
@@ -36,7 +36,6 @@
 void ws2812_sendarray(uint8_t *array, uint16_t length);
 void ws2812_sendarray_mask(uint8_t *array, uint16_t length, uint8_t pinmask);
 
-
 #ifdef RGBW_BB_TWI
 
 // Port for the I2C
@@ -146,16 +145,6 @@ void inline ws2812_setleds(LED_TYPE *ledarray, uint16_t leds) {
 }
 
 void inline ws2812_setleds_pin(LED_TYPE *ledarray, uint16_t leds, uint8_t pinmask) {
-    // ws2812_DDRREG |= pinmask; // Enable DDR
-    // new universal format (DDR)
-    _SFR_IO8((RGB_DI_PIN >> 4) + 1) |= pinmask;
-
-    ws2812_sendarray_mask((uint8_t *)ledarray, leds + leds + leds, pinmask);
-    _delay_us(50);
-}
-
-// Setleds for SK6812RGBW
-void inline ws2812_setleds_rgbw(LED_TYPE *ledarray, uint16_t leds) {
 #ifdef RGBW_BB_TWI
     uint8_t sreg_prev, twcr_prev;
     sreg_prev = SREG;
@@ -176,15 +165,18 @@ void inline ws2812_setleds_rgbw(LED_TYPE *ledarray, uint16_t leds) {
     SREG = sreg_prev;
     TWCR = twcr_prev;
 #endif
-
-    // ws2812_DDRREG |= _BV(ws2812_pin); // Enable DDR
+    // ws2812_DDRREG |= pinmask; // Enable DDR
     // new universal format (DDR)
-    _SFR_IO8((RGB_DI_PIN >> 4) + 1) |= _BV(RGB_DI_PIN & 0xF);
+    _SFR_IO8((RGB_DI_PIN >> 4) + 1) |= pinmask;
 
-    ws2812_sendarray_mask((uint8_t *)ledarray, leds << 2, _BV(RGB_DI_PIN & 0xF));
+    ws2812_sendarray_mask((uint8_t *)ledarray, leds * sizeof(LED_TYPE), pinmask);
 
 #ifndef RGBW_BB_TWI
+#    ifdef RGBW
     _delay_us(80);
+#    else
+    _delay_us(50);
+#    endif
 #endif
 }
 
diff --git a/drivers/avr/ws2812.h b/drivers/avr/ws2812.h
index 9652b94bbe..b869fb28c8 100644
--- a/drivers/avr/ws2812.h
+++ b/drivers/avr/ws2812.h
@@ -34,8 +34,7 @@
  * The functions will perform the following actions:
  *         - Set the data-out pin as output
  *         - Send out the LED data
- *         - Wait 50�s to reset the LEDs
+ *         - Wait 50us to reset the LEDs
  */
 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);
-void ws2812_setleds_rgbw(LED_TYPE *ledarray, uint16_t number_of_leds);
diff --git a/drivers/avr/ws2812_i2c.c b/drivers/avr/ws2812_i2c.c
index 8525a026c7..1c332e24b6 100644
--- a/drivers/avr/ws2812_i2c.c
+++ b/drivers/avr/ws2812_i2c.c
@@ -1,6 +1,10 @@
 #include "ws2812.h"
 #include "i2c_master.h"
 
+#ifdef RGBW
+#    error "RGBW not supported"
+#endif
+
 #ifndef WS2812_ADDRESS
 #    define WS2812_ADDRESS 0xb0
 #endif
@@ -21,11 +25,3 @@ void ws2812_setleds(LED_TYPE *ledarray, uint16_t leds) {
 
     i2c_transmit(WS2812_ADDRESS, (uint8_t *)ledarray, sizeof(LED_TYPE) * leds, WS2812_TIMEOUT);
 }
-
-// Setleds for SK6812RGBW
-void ws2812_setleds_rgbw(LED_TYPE *ledarray, uint16_t leds) {
-// not supported - for now error out if its enabled
-#ifdef RGBW
-#    error "RGBW not supported"
-#endif
-}